Merge pull request #14 from ceph/devel

Sync red-hat-storage/ceph-csi:devel with ceph/ceph-csi:devel

.github/workflows/codespell.yaml

@@ -14,9 +14,4 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: codespell
-        uses: codespell-project/actions-codespell@master
+        run: CONTAINER_CMD=docker make containerized-test TARGET=codespell
-        with:
-          skip: .git,./vendor,./docs/design/proposals/images
-          check_filenames: true
-          ignore_words_list: ExtraVersion,extraversion,ba
-          check_hidden: true

.mergify.yml

@@ -46,12 +46,12 @@ pull_request_rules:
       - "status-success=commitlint"
       - "status-success=mod-check"
       - "status-success=lint-extras"
-      - "status-success=ci/centos/mini-e2e-helm/k8s-1.19"
       - "status-success=ci/centos/mini-e2e-helm/k8s-1.20"
       - "status-success=ci/centos/mini-e2e-helm/k8s-1.21"
-      - "status-success=ci/centos/mini-e2e/k8s-1.19"
+      - "status-success=ci/centos/mini-e2e-helm/k8s-1.22"
       - "status-success=ci/centos/mini-e2e/k8s-1.20"
       - "status-success=ci/centos/mini-e2e/k8s-1.21"
+      - "status-success=ci/centos/mini-e2e/k8s-1.22"
       - "status-success=ci/centos/upgrade-tests-cephfs"
       - "status-success=ci/centos/upgrade-tests-rbd"
       - "status-success=DCO"
@@ -74,12 +74,12 @@ pull_request_rules:
       - "status-success=mod-check"
       - "status-success=lint-extras"
       - "#changes-requested-reviews-by=0"
-      - "status-success=ci/centos/mini-e2e-helm/k8s-1.19"
       - "status-success=ci/centos/mini-e2e-helm/k8s-1.20"
       - "status-success=ci/centos/mini-e2e-helm/k8s-1.21"
-      - "status-success=ci/centos/mini-e2e/k8s-1.19"
+      - "status-success=ci/centos/mini-e2e-helm/k8s-1.22"
       - "status-success=ci/centos/mini-e2e/k8s-1.20"
       - "status-success=ci/centos/mini-e2e/k8s-1.21"
+      - "status-success=ci/centos/mini-e2e/k8s-1.22"
       - "status-success=ci/centos/upgrade-tests-cephfs"
       - "status-success=ci/centos/upgrade-tests-rbd"
       - "status-success=DCO"
@@ -185,12 +185,12 @@ pull_request_rules:
       - "#approved-reviews-by>=1"
       - "status-success=multi-arch-build"
       - "status-success=commitlint"
-      - "status-success=ci/centos/mini-e2e-helm/k8s-1.19"
       - "status-success=ci/centos/mini-e2e-helm/k8s-1.20"
       - "status-success=ci/centos/mini-e2e-helm/k8s-1.21"
-      - "status-success=ci/centos/mini-e2e/k8s-1.19"
+      - "status-success=ci/centos/mini-e2e-helm/k8s-1.22"
       - "status-success=ci/centos/mini-e2e/k8s-1.20"
       - "status-success=ci/centos/mini-e2e/k8s-1.21"
+      - "status-success=ci/centos/mini-e2e/k8s-1.22"
       - "status-success=ci/centos/upgrade-tests-cephfs"
       - "status-success=ci/centos/upgrade-tests-rbd"
       - "status-success=DCO"
@@ -222,12 +222,12 @@ pull_request_rules:
       - "status-success=mod-check"
       - "status-success=lint-extras"
       - "#changes-requested-reviews-by=0"
-      - "status-success=ci/centos/mini-e2e-helm/k8s-1.19"
       - "status-success=ci/centos/mini-e2e-helm/k8s-1.20"
       - "status-success=ci/centos/mini-e2e-helm/k8s-1.21"
-      - "status-success=ci/centos/mini-e2e/k8s-1.19"
+      - "status-success=ci/centos/mini-e2e-helm/k8s-1.22"
       - "status-success=ci/centos/mini-e2e/k8s-1.20"
       - "status-success=ci/centos/mini-e2e/k8s-1.21"
+      - "status-success=ci/centos/mini-e2e/k8s-1.22"
       - "status-success=ci/centos/upgrade-tests-cephfs"
       - "status-success=ci/centos/upgrade-tests-rbd"
       - "status-success=DCO"
@@ -259,12 +259,12 @@ pull_request_rules:
       - "status-success=mod-check"
       - "status-success=lint-extras"
       - "#changes-requested-reviews-by=0"
-      - "status-success=ci/centos/mini-e2e-helm/k8s-1.19"
       - "status-success=ci/centos/mini-e2e-helm/k8s-1.20"
       - "status-success=ci/centos/mini-e2e-helm/k8s-1.21"
-      - "status-success=ci/centos/mini-e2e/k8s-1.19"
+      - "status-success=ci/centos/mini-e2e-helm/k8s-1.22"
       - "status-success=ci/centos/mini-e2e/k8s-1.20"
       - "status-success=ci/centos/mini-e2e/k8s-1.21"
+      - "status-success=ci/centos/mini-e2e/k8s-1.22"
       - "status-success=ci/centos/upgrade-tests-cephfs"
       - "status-success=ci/centos/upgrade-tests-rbd"
       - "status-success=DCO"
@@ -296,12 +296,12 @@ pull_request_rules:
       - "status-success=mod-check"
       - "status-success=lint-extras"
       - "#changes-requested-reviews-by=0"
-      - "status-success=ci/centos/mini-e2e-helm/k8s-1.19"
       - "status-success=ci/centos/mini-e2e-helm/k8s-1.20"
       - "status-success=ci/centos/mini-e2e-helm/k8s-1.21"
-      - "status-success=ci/centos/mini-e2e/k8s-1.19"
+      - "status-success=ci/centos/mini-e2e-helm/k8s-1.22"
       - "status-success=ci/centos/mini-e2e/k8s-1.20"
       - "status-success=ci/centos/mini-e2e/k8s-1.21"
+      - "status-success=ci/centos/mini-e2e/k8s-1.22"
       - "status-success=ci/centos/upgrade-tests-cephfs"
       - "status-success=ci/centos/upgrade-tests-rbd"
       - "status-success=DCO"

Makefile

@@ -87,7 +87,7 @@ endif
 
 all: cephcsi
 
-.PHONY: go-test static-check mod-check go-lint lint-extras gosec commitlint
+.PHONY: go-test static-check mod-check go-lint lint-extras gosec commitlint codespell
 ifeq ($(CONTAINERIZED),no)
 # include mod-check in non-containerized runs
 test: go-test static-check mod-check
@@ -95,7 +95,7 @@ else
 # exclude mod-check for containerized runs (CI runs it separately)
 test: go-test static-check
 endif
-static-check: check-env go-lint lint-extras gosec
+static-check: check-env codespell go-lint lint-extras gosec
 
 go-test: TEST_COVERAGE ?= $(shell . $(CURDIR)/build.env ; echo $${TEST_COVERAGE})
 go-test: GO_COVER_DIR ?= $(shell . $(CURDIR)/build.env ; echo $${GO_COVER_DIR})
@@ -139,6 +139,8 @@ func-test:
 check-env:
 	@./scripts/check-env.sh
 
+codespell:
+	codespell --config scripts/codespell.conf
 #
 # commitlint will do a rebase on top of GIT_SINCE when REBASE=1 is passed.
 #

docs/rbd-nbd.md

@@ -38,6 +38,8 @@ Rbd-nbd support status: **Alpha**
 | ---------------------------------------- | -------------- | ------------------ | -------------------- | ---------------- | ------------------ |
 | Creating and deleting snapshot           | Alpha          | >= v3.4.0          | Pacific (>=16.0.0)   | >= v1.0.0        | >= v1.17.0         |
 | Creating and deleting clones             | Alpha          | >= v3.4.0          | Pacific (>=16.0.0)   | >= v1.0.0        | >= v1.17.0         |
+| Creating and deleting encrypted volumes  | Alpha          | >= v3.4.0          | Pacific (>=16.0.0)   | >= v1.0.0        | >= v1.14.0         |
+| Expand volumes                           | Alpha          | >= v3.4.0          | Pacific (>=16.0.0)   | >= v1.1.0        | >= v1.15.0         |
 
 `NOTE`: The `Alpha` status reflects possible non-backward compatible
 changes in the future, and is thus not recommended for production use.

e2e/deploy-vault.go

@@ -19,6 +19,7 @@ var (
 	vaultConfigPath      = "kms-config.yaml"
 	vaultTenantPath      = "tenant-sa.yaml"
 	vaultTenantAdminPath = "tenant-sa-admin.yaml"
+	vaultUserSecret      = "user-secret.yaml"
 )
 
 func deployVault(c kubernetes.Interface, deployTimeout int) {

e2e/rbd.go

@@ -9,6 +9,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/ceph/ceph-csi/internal/util"
+
 	. "github.com/onsi/ginkgo" // nolint
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -429,6 +431,53 @@ var _ = Describe("RBD", func() {
 				}
 			})
 
+			By("Resize rbd-nbd PVC and check application directory size", func() {
+				kernelRelease, err := util.GetKernelVersion()
+				if err != nil {
+					e2elog.Failf("failed to get kernel version with error %v", err)
+				}
+				if util.CheckKernelSupport(kernelRelease, nbdResizeSupport) {
+					err := deleteResource(rbdExamplePath + "storageclass.yaml")
+					if err != nil {
+						e2elog.Failf("failed to delete storageclass with error %v", err)
+					}
+					// Storage class with rbd-nbd mounter
+					err = createRBDStorageClass(
+						f.ClientSet,
+						f,
+						defaultSCName,
+						nil,
+						map[string]string{"mounter": "rbd-nbd"},
+						deletePolicy)
+					if err != nil {
+						e2elog.Failf("failed to create storageclass with error %v", err)
+					}
+					// Block PVC resize
+					err = resizePVCAndValidateSize(rawPvcPath, rawAppPath, f)
+					if err != nil {
+						e2elog.Failf("failed to resize block PVC with error %v", err)
+					}
+					// validate created backend rbd images
+					validateRBDImageCount(f, 0, defaultRBDPool)
+
+					// FileSystem PVC resize
+					err = resizePVCAndValidateSize(pvcPath, appPath, f)
+					if err != nil {
+						e2elog.Failf("failed to resize filesystem PVC with error %v", err)
+					}
+					// validate created backend rbd images
+					validateRBDImageCount(f, 0, defaultRBDPool)
+					err = deleteResource(rbdExamplePath + "storageclass.yaml")
+					if err != nil {
+						e2elog.Failf("failed to delete storageclass with error %v", err)
+					}
+					err = createRBDStorageClass(f.ClientSet, f, defaultSCName, nil, nil, deletePolicy)
+					if err != nil {
+						e2elog.Failf("failed to create storageclass with error %v", err)
+					}
+				}
+			})
+
 			By("perform IO on rbd-nbd volume after nodeplugin restart", func() {
 				err := deleteResource(rbdExamplePath + "storageclass.yaml")
 				if err != nil {
@@ -580,6 +629,38 @@ var _ = Describe("RBD", func() {
 				}
 			})
 
+			By("create a PVC and bind it to an app using rbd-nbd mounter with encryption", func() {
+				err := deleteResource(rbdExamplePath + "storageclass.yaml")
+				if err != nil {
+					e2elog.Failf("failed to delete storageclass with error %v", err)
+				}
+				// Storage class with rbd-nbd mounter
+				err = createRBDStorageClass(
+					f.ClientSet,
+					f,
+					defaultSCName,
+					nil,
+					map[string]string{"mounter": "rbd-nbd", "encrypted": "true"},
+					deletePolicy)
+				if err != nil {
+					e2elog.Failf("failed to create storageclass with error %v", err)
+				}
+				err = validateEncryptedPVCAndAppBinding(pvcPath, appPath, noKMS, f)
+				if err != nil {
+					e2elog.Failf("failed to validate encrypted pvc with error %v", err)
+				}
+				// validate created backend rbd images
+				validateRBDImageCount(f, 0, defaultRBDPool)
+				err = deleteResource(rbdExamplePath + "storageclass.yaml")
+				if err != nil {
+					e2elog.Failf("failed to delete storageclass with error %v", err)
+				}
+				err = createRBDStorageClass(f.ClientSet, f, defaultSCName, nil, nil, deletePolicy)
+				if err != nil {
+					e2elog.Failf("failed to create storageclass with error %v", err)
+				}
+			})
+
 			By("create a PVC and bind it to an app with encrypted RBD volume", func() {
 				err := deleteResource(rbdExamplePath + "storageclass.yaml")
 				if err != nil {
@@ -815,11 +896,7 @@ var _ = Describe("RBD", func() {
 				namespace := cephCSINamespace
 
 				// create user Secret
-				secret, err := getSecret(vaultExamplePath + "user-secret.yaml")
+				err = retryKubectlFile(namespace, kubectlCreate, vaultExamplePath+vaultUserSecret, deployTimeout)
-				if err != nil {
-					e2elog.Failf("failed to load user Secret: %v", err)
-				}
-				_, err = c.CoreV1().Secrets(namespace).Create(context.TODO(), &secret, metav1.CreateOptions{})
 				if err != nil {
 					e2elog.Failf("failed to create user Secret: %v", err)
 				}
@@ -832,7 +909,11 @@ var _ = Describe("RBD", func() {
 				validateRBDImageCount(f, 0, defaultRBDPool)
 
 				// delete user secret
-				err = c.CoreV1().Secrets(namespace).Delete(context.TODO(), secret.Name, metav1.DeleteOptions{})
+				err = retryKubectlFile(namespace,
+					kubectlDelete,
+					vaultExamplePath+vaultUserSecret,
+					deployTimeout,
+					"--ignore-not-found=true")
 				if err != nil {
 					e2elog.Failf("failed to delete user Secret: %v", err)
 				}
@@ -867,11 +948,7 @@ var _ = Describe("RBD", func() {
 					namespace := f.UniqueName
 
 					// create user Secret
-					secret, err := getSecret(vaultExamplePath + "user-secret.yaml")
+					err = retryKubectlFile(namespace, kubectlCreate, vaultExamplePath+vaultUserSecret, deployTimeout)
-					if err != nil {
-						e2elog.Failf("failed to load user Secret: %v", err)
-					}
-					_, err = c.CoreV1().Secrets(namespace).Create(context.TODO(), &secret, metav1.CreateOptions{})
 					if err != nil {
 						e2elog.Failf("failed to create user Secret: %v", err)
 					}
@@ -884,7 +961,12 @@ var _ = Describe("RBD", func() {
 					validateRBDImageCount(f, 0, defaultRBDPool)
 
 					// delete user secret
-					err = c.CoreV1().Secrets(namespace).Delete(context.TODO(), secret.Name, metav1.DeleteOptions{})
+					err = retryKubectlFile(
+						namespace,
+						kubectlDelete,
+						vaultExamplePath+vaultUserSecret,
+						deployTimeout,
+						"--ignore-not-found=true")
 					if err != nil {
 						e2elog.Failf("failed to delete user Secret: %v", err)
 					}
@@ -2366,17 +2448,70 @@ var _ = Describe("RBD", func() {
 			By("validate the functionality of controller", func() {
 				err := deleteResource(rbdExamplePath + "storageclass.yaml")
 				if err != nil {
-					e2elog.Failf("failed to delete storageclass with error %v", err)
+					e2elog.Failf("failed to delete storageclass : %v", err)
 				}
-				err = validateController(f, pvcPath, appPath, rbdExamplePath+"storageclass.yaml")
+				scParams := map[string]string{
+					"volumeNamePrefix": "test-",
+				}
+				err = validateController(f,
+					pvcPath, appPath, rbdExamplePath+"storageclass.yaml",
+					nil,
+					scParams)
 				if err != nil {
-					e2elog.Failf("failed to validate controller with error %v", err)
+					e2elog.Failf("failed to validate controller : %v", err)
 				}
 				// validate created backend rbd images
 				validateRBDImageCount(f, 0, defaultRBDPool)
 				err = createRBDStorageClass(f.ClientSet, f, defaultSCName, nil, nil, deletePolicy)
 				if err != nil {
-					e2elog.Failf("failed to create storageclass with error %v", err)
+					e2elog.Failf("failed to create storageclass : %v", err)
+				}
+			})
+
+			By("validate the functionality of controller with encryption and thick-provisioning", func() {
+				err := deleteResource(rbdExamplePath + "storageclass.yaml")
+				if err != nil {
+					e2elog.Failf("failed to delete storageclass : %v", err)
+				}
+				scParams := map[string]string{
+					"encrypted":       "true",
+					"encryptionKMSID": "user-secrets-metadata-test",
+					"thickProvision":  "true",
+				}
+
+				// PVC creation namespace where secret will be created
+				namespace := f.UniqueName
+
+				// create user Secret
+				err = retryKubectlFile(namespace, kubectlCreate, vaultExamplePath+vaultUserSecret, deployTimeout)
+				if err != nil {
+					e2elog.Failf("failed to create user Secret: %v", err)
+				}
+
+				err = validateController(f,
+					pvcPath, appPath, rbdExamplePath+"storageclass.yaml",
+					nil,
+					scParams)
+				if err != nil {
+					e2elog.Failf("failed to validate controller : %v", err)
+				}
+
+				// validate created backend rbd images
+				validateRBDImageCount(f, 0, defaultRBDPool)
+
+				// delete user secret
+				err = retryKubectlFile(namespace,
+					kubectlDelete,
+					vaultExamplePath+vaultUserSecret,
+					deployTimeout,
+					"--ignore-not-found=true")
+				if err != nil {
+					e2elog.Failf("failed to delete user Secret: %v", err)
+				}
+
+				err = createRBDStorageClass(f.ClientSet, f, defaultSCName, nil, nil, deletePolicy)
+				if err != nil {
+					e2elog.Failf("failed to create storageclass : %v", err)
 				}
 			})
 

e2e/rbd_helper.go

@@ -10,6 +10,8 @@ import (
 	"sync"
 	"time"
 
+	"github.com/ceph/ceph-csi/internal/util"
+
 	snapapi "github.com/kubernetes-csi/external-snapshotter/client/v4/apis/volumesnapshot/v1"
 	v1 "k8s.io/api/core/v1"
 	scv1 "k8s.io/api/storage/v1"
@@ -26,6 +28,18 @@ const (
 	thickProvisionMetaKey = "rbd.csi.ceph.com/thick-provisioned"
 )
 
+// nolint:gomnd // numbers specify Kernel versions.
+var nbdResizeSupport = []util.KernelVersion{
+	{
+		Version:      5,
+		PatchLevel:   3,
+		SubLevel:     0,
+		ExtraVersion: 0,
+		Distribution: "",
+		Backport:     false,
+	}, // standard 5.3+ versions
+}
+
 func imageSpec(pool, image string) string {
 	if radosNamespace != "" {
 		return pool + "/" + radosNamespace + "/" + image
@@ -770,6 +784,15 @@ func checkPVCCSIJournalInPool(f *framework.Framework, pvc *v1.PersistentVolumeCl
 	return nil
 }
 
+// deleteJournalInfoInPool deletes all omap data regarding pvc.
+func deleteJournalInfoInPool(f *framework.Framework, pvc *v1.PersistentVolumeClaim, pool string) error {
+	if err := deletePVCImageJournalInPool(f, pvc, pool); err != nil {
+		return err
+	}
+
+	return deletePVCCSIJournalInPool(f, pvc, pool)
+}
+
 func deletePVCImageJournalInPool(f *framework.Framework, pvc *v1.PersistentVolumeClaim, pool string) error {
 	imageData, err := getImageInfoFromPVC(pvc.Namespace, pvc.Name, f)
 	if err != nil {

e2e/staticpvc.go

@@ -3,6 +3,7 @@ package e2e
 import (
 	"context"
 	"fmt"
+	"strconv"
 	"strings"
 
 	v1 "k8s.io/api/core/v1"
@@ -123,7 +124,7 @@ func validateRBDStaticPV(f *framework.Framework, appPath string, isBlock, checkI
 		opt["imageFeatures"] = "layering"
 	}
 	opt["pool"] = defaultRBDPool
-	opt["staticVolume"] = "true"
+	opt["staticVolume"] = strconv.FormatBool(true)
 	if radosNamespace != "" {
 		opt["radosNamespace"] = radosNamespace
 	}
@@ -279,7 +280,7 @@ func validateCephFsStaticPV(f *framework.Framework, appPath, scPath string) erro
 
 	opt["clusterID"] = fsID
 	opt["fsName"] = fsName
-	opt["staticVolume"] = "true"
+	opt["staticVolume"] = strconv.FormatBool(true)
 	opt["rootPath"] = rootPath
 	pv := getStaticPV(pvName, pvName, "4Gi", secretName, cephCSINamespace, sc, "cephfs.csi.ceph.com", false, opt)
 	_, err = c.CoreV1().PersistentVolumes().Create(context.TODO(), pv, metav1.CreateOptions{})

e2e/utils.go

@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"regexp"
+	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -1071,13 +1072,17 @@ func validatePVCSnapshot(
 // Mount the PVC to application (NodeStage/NodePublish should work)
 // Resize the PVC
 // Delete the Application and PVC.
-func validateController(f *framework.Framework, pvcPath, appPath, scPath string) error {
+func validateController(
+	f *framework.Framework,
+	pvcPath, appPath, scPath string,
+	scOptions, scParams map[string]string) error {
 	size := "1Gi"
 	poolName := defaultRBDPool
 	expandSize := "10Gi"
 	var err error
 	// create storageclass with retain
-	err = createRBDStorageClass(f.ClientSet, f, defaultSCName, nil, nil, retainPolicy)
+	err = createRBDStorageClass(f.ClientSet, f, defaultSCName, scOptions, scParams,
+		retainPolicy)
 	if err != nil {
 		return fmt.Errorf("failed to create storageclass: %w", err)
 	}
@@ -1087,10 +1092,7 @@ func validateController(f *framework.Framework, pvcPath, appPath, scPath string)
 	if err != nil {
 		return fmt.Errorf("failed to load PVC: %w", err)
 	}
-	resizePvc, err := loadPVC(pvcPath)
+	resizePvc := pvc.DeepCopy()
-	if err != nil {
-		return fmt.Errorf("failed to load PVC: %w", err)
-	}
 	resizePvc.Namespace = f.UniqueName
 
 	pvc.Spec.Resources.Requests[v1.ResourceStorage] = resource.MustParse(size)
@@ -1109,16 +1111,13 @@ func validateController(f *framework.Framework, pvcPath, appPath, scPath string)
 	if err != nil {
 		return fmt.Errorf("failed to delete storageclass: %w", err)
 	}
-	err = createRBDStorageClass(f.ClientSet, f, defaultSCName, nil, nil, deletePolicy)
+	err = createRBDStorageClass(f.ClientSet, f, defaultSCName, scOptions, scParams,
+		deletePolicy)
 	if err != nil {
 		return fmt.Errorf("failed to create storageclass: %w", err)
 	}
 	// delete omap data
-	err = deletePVCImageJournalInPool(f, pvc, poolName)
+	err = deleteJournalInfoInPool(f, pvc, poolName)
-	if err != nil {
-		return err
-	}
-	err = deletePVCCSIJournalInPool(f, pvc, poolName)
 	if err != nil {
 		return err
 	}
@@ -1151,23 +1150,30 @@ func validateController(f *framework.Framework, pvcPath, appPath, scPath string)
 	if err != nil {
 		return err
 	}
-	// resize PVC
+	if scParams["encrypted"] == strconv.FormatBool(true) {
-	err = expandPVCSize(f.ClientSet, resizePvc, expandSize, deployTimeout)
+		// check encryption
-	if err != nil {
+		err = isEncryptedPVC(f, resizePvc, app)
-		return err
-	}
-	if *pvc.Spec.VolumeMode == v1.PersistentVolumeFilesystem {
-		err = checkDirSize(app, f, &opt, expandSize)
 		if err != nil {
 			return err
 		}
-	}
+	} else {
-
+		// resize PVC
-	if *pvc.Spec.VolumeMode == v1.PersistentVolumeBlock {
+		err = expandPVCSize(f.ClientSet, resizePvc, expandSize, deployTimeout)
-		err = checkDeviceSize(app, f, &opt, expandSize)
 		if err != nil {
 			return err
 		}
+		switch *pvc.Spec.VolumeMode {
+		case v1.PersistentVolumeFilesystem:
+			err = checkDirSize(app, f, &opt, expandSize)
+			if err != nil {
+				return err
+			}
+		case v1.PersistentVolumeBlock:
+			err = checkDeviceSize(app, f, &opt, expandSize)
+			if err != nil {
+				return err
+			}
+		}
 	}
 	// delete pvc and storageclass
 	err = deletePVCAndApp("", f, resizePvc, app)

go.mod

@@ -4,7 +4,7 @@ go 1.16
 
 require (
 	github.com/aws/aws-sdk-go v1.38.63
-	github.com/ceph/go-ceph v0.10.0
+	github.com/ceph/go-ceph v0.11.0
 	github.com/container-storage-interface/spec v1.5.0
 	github.com/csi-addons/replication-lib-utils v0.2.0
 	github.com/csi-addons/spec v0.1.0
@@ -23,14 +23,14 @@ require (
 	golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e
 	golang.org/x/sys v0.0.0-20210616094352-59db8d763f22
 	google.golang.org/grpc v1.38.0
-	k8s.io/api v0.21.2
+	k8s.io/api v0.22.0
-	k8s.io/apimachinery v0.21.2
+	k8s.io/apimachinery v0.22.0
 	k8s.io/client-go v12.0.0+incompatible
-	k8s.io/cloud-provider v0.21.2
+	k8s.io/cloud-provider v1.22.0
-	k8s.io/klog/v2 v2.8.0
+	k8s.io/klog/v2 v2.9.0
-	k8s.io/kubernetes v1.21.2
+	k8s.io/kubernetes v1.22.0
-	k8s.io/mount-utils v0.21.2
+	k8s.io/mount-utils v0.22.0
-	k8s.io/utils v0.0.0-20210527160623-6fdb442a123b
+	k8s.io/utils v0.0.0-20210707171843-4b05e18ac7d9
 	sigs.k8s.io/controller-runtime v0.9.2
 )
 
@@ -40,30 +40,31 @@ replace (
 	github.com/hashicorp/vault/sdk => github.com/hashicorp/vault/sdk v0.1.14-0.20201116234512-b4d4137dfe8b
 	github.com/portworx/sched-ops => github.com/portworx/sched-ops v0.20.4-openstorage-rc3
 	google.golang.org/grpc => google.golang.org/grpc v1.35.0
-	k8s.io/api => k8s.io/api v0.21.2
+	k8s.io/api => k8s.io/api v0.22.0
-	k8s.io/apiextensions-apiserver => k8s.io/apiextensions-apiserver v0.21.2
+	k8s.io/apiextensions-apiserver => k8s.io/apiextensions-apiserver v0.22.0
-	k8s.io/apimachinery => k8s.io/apimachinery v0.21.2
+	k8s.io/apimachinery => k8s.io/apimachinery v0.22.0
-	k8s.io/apiserver => k8s.io/apiserver v0.21.2
+	k8s.io/apiserver => k8s.io/apiserver v0.22.0
-	k8s.io/cli-runtime => k8s.io/cli-runtime v0.21.2
+	k8s.io/cli-runtime => k8s.io/cli-runtime v0.22.0
-	k8s.io/client-go => k8s.io/client-go v0.21.2
+	k8s.io/client-go => k8s.io/client-go v0.22.0
-	k8s.io/cloud-provider => k8s.io/cloud-provider v0.21.2
+	k8s.io/cloud-provider => k8s.io/cloud-provider v0.22.0
-	k8s.io/cluster-bootstrap => k8s.io/cluster-bootstrap v0.21.2
+	k8s.io/cluster-bootstrap => k8s.io/cluster-bootstrap v0.22.0
-	k8s.io/code-generator => k8s.io/code-generator v0.21.2
+	k8s.io/code-generator => k8s.io/code-generator v0.22.0
-	k8s.io/component-base => k8s.io/component-base v0.21.2
+	k8s.io/component-base => k8s.io/component-base v0.22.0
-	k8s.io/component-helpers => k8s.io/component-helpers v0.21.2
+	k8s.io/component-helpers => k8s.io/component-helpers v0.22.0
-	k8s.io/controller-manager => k8s.io/controller-manager v0.21.2
+	k8s.io/controller-manager => k8s.io/controller-manager v0.22.0
-	k8s.io/cri-api => k8s.io/cri-api v0.21.2
+	k8s.io/cri-api => k8s.io/cri-api v0.22.0
-	k8s.io/csi-translation-lib => k8s.io/csi-translation-lib v0.21.2
+	k8s.io/csi-translation-lib => k8s.io/csi-translation-lib v0.22.0
-	k8s.io/kube-aggregator => k8s.io/kube-aggregator v0.21.2
+	k8s.io/kube-aggregator => k8s.io/kube-aggregator v0.22.0
-	k8s.io/kube-controller-manager => k8s.io/kube-controller-manager v0.21.2
+	k8s.io/kube-controller-manager => k8s.io/kube-controller-manager v0.22.0
-	k8s.io/kube-proxy => k8s.io/kube-proxy v0.21.2
+	k8s.io/kube-proxy => k8s.io/kube-proxy v0.22.0
-	k8s.io/kube-scheduler => k8s.io/kube-scheduler v0.21.2
+	k8s.io/kube-scheduler => k8s.io/kube-scheduler v0.22.0
-	k8s.io/kubectl => k8s.io/kubectl v0.21.2
+	k8s.io/kubectl => k8s.io/kubectl v0.22.0
-	k8s.io/kubelet => k8s.io/kubelet v0.21.2
+	k8s.io/kubelet => k8s.io/kubelet v0.22.0
-	k8s.io/legacy-cloud-providers => k8s.io/legacy-cloud-providers v0.21.2
+	k8s.io/legacy-cloud-providers => k8s.io/legacy-cloud-providers v0.22.0
-	k8s.io/metrics => k8s.io/metrics v0.21.2
+	k8s.io/metrics => k8s.io/metrics v0.22.0
-	k8s.io/mount-utils => k8s.io/mount-utils v0.21.2
+	k8s.io/mount-utils => k8s.io/mount-utils v0.22.0
-	k8s.io/sample-apiserver => k8s.io/sample-apiserver v0.21.2
+	k8s.io/pod-security-admission => k8s.io/pod-security-admission v0.22.0
+	k8s.io/sample-apiserver => k8s.io/sample-apiserver v0.22.0
 )
 
 // This tag doesn't exist, but is imported by github.com/portworx/sched-ops.

go.sum

@@ -41,16 +41,18 @@ dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20201218220906-28db891af037/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 git.apache.org/thrift.git v0.12.0/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
 github.com/Azure/azure-sdk-for-go v36.2.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
-github.com/Azure/azure-sdk-for-go v43.0.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
+github.com/Azure/azure-sdk-for-go v55.0.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
+github.com/Azure/go-ansiterm v0.0.0-20210608223527-2377c96fe795/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
+github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
 github.com/Azure/go-autorest v14.2.0+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
 github.com/Azure/go-autorest/autorest v0.9.0/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
 github.com/Azure/go-autorest/autorest v0.9.2/go.mod h1:xyHB1BMZT0cuDHU7I0+g046+BFDTQ8rEZB0s4Yfa6bI=
-github.com/Azure/go-autorest/autorest v0.11.12/go.mod h1:eipySxLmqSyC5s5k1CLupqet0PSENBEDP93LQ9a8QYw=
+github.com/Azure/go-autorest/autorest v0.11.18/go.mod h1:dSiJPy22c3u0OtOKDNttNgqpNFY/GeWa7GH/Pz56QRA=
 github.com/Azure/go-autorest/autorest/adal v0.5.0/go.mod h1:8Z9fGy2MpX0PvDjB1pEgQTmVqjGhiHBW7RJJEciWzS0=
 github.com/Azure/go-autorest/autorest/adal v0.6.0/go.mod h1:Z6vX6WXXuyieHAXwMj0S6HY6e6wcHn37qQMBQlvY3lc=
 github.com/Azure/go-autorest/autorest/adal v0.7.0/go.mod h1:Z6vX6WXXuyieHAXwMj0S6HY6e6wcHn37qQMBQlvY3lc=
-github.com/Azure/go-autorest/autorest/adal v0.9.5/go.mod h1:B7KF7jKIeC9Mct5spmyCB/A8CG/sEz1vwIRGv/bbw7A=
+github.com/Azure/go-autorest/autorest/adal v0.9.13/go.mod h1:W/MM4U6nLxnIskrw4UwWzlHfGjwUS50aOsc/I3yuU8M=
 github.com/Azure/go-autorest/autorest/azure/auth v0.4.0/go.mod h1:Oo5cRhLvZteXzI2itUm5ziqsoIxRkzrt3t61FeZaS18=
 github.com/Azure/go-autorest/autorest/azure/cli v0.3.0/go.mod h1:rNYMNAefZMRowqCV0cVhr/YDW5dD7afFq9nXAXL4ykE=
 github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
@@ -60,12 +62,12 @@ github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxB
 github.com/Azure/go-autorest/autorest/mocks v0.2.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
 github.com/Azure/go-autorest/autorest/mocks v0.3.0/go.mod h1:a8FDP3DYzQ4RYfVAxAN3SVSiiO77gL2j2ronKKP0syM=
 github.com/Azure/go-autorest/autorest/mocks v0.4.1/go.mod h1:LTp+uSrOhSkaKrUy935gNZuuIPPVsHlr9DSOxSayd+k=
-github.com/Azure/go-autorest/autorest/to v0.2.0/go.mod h1:GunWKJp1AEqgMaGLV+iocmRAJWqST1wQYhyyjXJ3SJc=
 github.com/Azure/go-autorest/autorest/to v0.3.0/go.mod h1:MgwOyqaIuKdG4TL/2ywSsIWKAfJfgHDo8ObuUk3t5sA=
+github.com/Azure/go-autorest/autorest/to v0.4.0/go.mod h1:fE8iZBn7LQR7zH/9XU2NcPR4o9jEImooCeWJcYV/zLE=
 github.com/Azure/go-autorest/autorest/validation v0.1.0/go.mod h1:Ha3z/SqBeaalWQvokg3NZAlQTalVMtOIAs1aGK7G6u8=
 github.com/Azure/go-autorest/autorest/validation v0.2.0/go.mod h1:3EEqHnBxQGHXRYq3HT1WyXAvT7LLY3tl70hw6tQIbjI=
 github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
-github.com/Azure/go-autorest/logger v0.2.0/go.mod h1:T9E3cAhj2VqvPOtCYAvby9aBXkZmbF5NWuPV8+WeEW8=
+github.com/Azure/go-autorest/logger v0.2.1/go.mod h1:T9E3cAhj2VqvPOtCYAvby9aBXkZmbF5NWuPV8+WeEW8=
 github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk=
 github.com/Azure/go-autorest/tracing v0.6.0/go.mod h1:+vhtPC754Xsa23ID7GlGsrdKBpUA79WCAKPPZVC2DeU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
@@ -90,7 +92,6 @@ github.com/NYTimes/gziphandler v1.1.1 h1:ZUDjpQae29j0ryrS0u/B8HZfJBtBQHjqw2rQ2cq
 github.com/NYTimes/gziphandler v1.1.1/go.mod h1:n/CVRwUEOgIxrgPvAQhUUr9oeUtvrhMomdKFjzJNB0c=
 github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5/go.mod h1:lmUJ/7eu/Q8D7ML55dXQrVaamCz2vxCfdQBasLZfHKk=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/PuerkitoBio/purell v1.1.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
 github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
 github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
 github.com/SAP/go-hdb v0.14.1/go.mod h1:7fdQLVC2lER3urZLjZCm0AuMQfApof92n3aylBPEkMo=
@@ -100,7 +101,6 @@ github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMx
 github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6 h1:fLjPD/aNc3UIOA6tDi6QXUemppXK3P9BI7mr2hd6gx8=
 github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/abdullin/seq v0.0.0-20160510034733-d5467c17e7af/go.mod h1:5Jv4cbFiHJMsVxt52+i0Ha45fjshj6wxYr1r19tB9bw=
-github.com/agnivade/levenshtein v1.0.1/go.mod h1:CURSv5d9Uaml+FovSIICkLbAUZ9S4RqaHDIsdSBg7lM=
 github.com/ajstarks/svgo v0.0.0-20180226025133-644b8db467af/go.mod h1:K08gAheRH3/J6wwsYMMT4xOr94bZjxIelGM0+d/wbFw=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
@@ -110,7 +110,6 @@ github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk5
 github.com/aliyun/alibaba-cloud-sdk-go v0.0.0-20190412020505-60e2075261b6/go.mod h1:T9M45xf79ahXVelWoOBmH0y4aC1t5kXO5BxwyakgIGA=
 github.com/aliyun/alibaba-cloud-sdk-go v0.0.0-20190620160927-9418d7b0cd0f/go.mod h1:myCDvQSzCW+wB1WAlocEru4wMGJxy+vlxHdhegi1CDQ=
 github.com/aliyun/aliyun-oss-go-sdk v0.0.0-20190307165228-86c17b95fcd5/go.mod h1:T/Aws4fEfogEE9v+HPhhw+CntffsBHJ8nXQCwKr0/g8=
-github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/apple/foundationdb/bindings/go v0.0.0-20190411004307-cd5c9d91fad2/go.mod h1:OMVSB21p9+xQUIqlGizHPZfjK+SHws1ht+ZytVDoz9U=
@@ -129,22 +128,25 @@ github.com/armon/go-radix v1.0.0 h1:F4z6KzEeeQIMeLFa97iZU6vupzoecKdU5TX24SNppXI=
 github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
 github.com/asaskevich/govalidator v0.0.0-20180720115003-f9ffefc3facf/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
 github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
-github.com/auth0/go-jwt-middleware v0.0.0-20170425171159-5493cabe49f7/go.mod h1:LWMyo4iOLWXHGdBki7NIht1kHru/0wM179h+d3g8ATM=
+github.com/auth0/go-jwt-middleware v1.0.1/go.mod h1:YSeUX3z6+TF2H+7padiEqNJ73Zy9vXW72U//IgN0BIM=
 github.com/aws/aws-sdk-go v1.25.37/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.25.41/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
 github.com/aws/aws-sdk-go v1.30.27/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
 github.com/aws/aws-sdk-go v1.35.24/go.mod h1:tlPOdRjfxPBpNIwqDj61rmsnA85v9jc0Ps9+muhnW+k=
+github.com/aws/aws-sdk-go v1.38.49/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
 github.com/aws/aws-sdk-go v1.38.63 h1:BqPxe0sujTRTbir6OWj0f1VmeJcAIv7ZhTCAhaU1zmE=
 github.com/aws/aws-sdk-go v1.38.63/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
 github.com/baiyubin/aliyun-sts-go-sdk v0.0.0-20180326062324-cfa1a18b161f/go.mod h1:AuiFmCCPBSrqvVMvuqFuk0qogytodnVFVSN5CeJB8Gc=
+github.com/benbjohnson/clock v1.0.3 h1:vkLuvpK4fmtSCuo60+yC63p7y0BmQ8gm5ZXGuBCJyXg=
+github.com/benbjohnson/clock v1.0.3/go.mod h1:bGMdMPoPVvcYyt1gHDf4J2KE153Yf9BuiUKYMaxlTDM=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
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@@ -183,15 +183,16 @@ github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnht
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@@ -204,8 +205,9 @@ github.com/containerd/ttrpc v0.0.0-20190828154514-0e0f228740de/go.mod h1:PvCDdDG
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@@ -217,8 +219,8 @@ github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7
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@@ -230,6 +232,7 @@ github.com/csi-addons/replication-lib-utils v0.2.0 h1:tGs42wfjkObbBo/98a3uxTFWEJ
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@@ -261,8 +264,8 @@ github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1
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@@ -272,7 +275,6 @@ github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7
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@@ -281,9 +283,12 @@ github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5Kwzbycv
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@@ -296,13 +301,10 @@ github.com/fullsailor/pkcs7 v0.0.0-20190404230743-d7302db945fa/go.mod h1:KnogPXt
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@@ -325,47 +327,12 @@ github.com/go-logr/zapr v0.4.0/go.mod h1:tabnROwaDl0UNxkVeFRbY8bwB37GwRv0P8lg6aA
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@@ -377,13 +344,13 @@ github.com/go-test/deep v1.0.2-0.20181118220953-042da051cf31/go.mod h1:wGDj63lr6
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@@ -398,8 +365,9 @@ github.com/golang/groupcache v0.0.0-20180513044358-24b0969c4cb7/go.mod h1:cIg4er
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@@ -415,7 +383,8 @@ github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEW
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@@ -452,12 +421,13 @@ github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+
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@@ -480,6 +450,7 @@ github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgf
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@@ -593,7 +564,7 @@ github.com/hashicorp/vault/sdk v0.1.14-0.20201116234512-b4d4137dfe8b/go.mod h1:c
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@@ -602,6 +573,7 @@ github.com/imdario/mergo v0.3.6/go.mod h1:2EnlNZ0deacrJVfApfmtdGgDfMuh/nq6Ok1EcJ
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@@ -619,7 +591,6 @@ github.com/jefferai/isbadcipher v0.0.0-20190226160619-51d2077c035f/go.mod h1:3J2
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@@ -627,6 +598,8 @@ github.com/jmespath/go-jmespath v0.4.0/go.mod h1:T8mJZnbsbmF+m6zOOFylbeCJqk5+pHW
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@@ -662,7 +635,6 @@ github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfn
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@@ -671,34 +643,24 @@ github.com/kubernetes-csi/csi-lib-utils v0.9.1/go.mod h1:8E2jVUX9j3QgspwHXa6LwyN
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@@ -718,12 +680,9 @@ github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5
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@@ -751,9 +710,9 @@ github.com/mitchellh/reflectwalk v1.0.1/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx
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@@ -773,8 +732,6 @@ github.com/mwielbut/pointy v1.1.0/go.mod h1:MvvO+uMFj9T5DMda33HlvogsFBX7pWWKAkFI
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@@ -795,8 +752,8 @@ github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+W
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@@ -816,13 +773,14 @@ github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3I
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 github.com/openshift/api v0.0.0-20210105115604-44119421ec6b/go.mod h1:aqU5Cq+kqKKPbDMqxo9FojgDeSpNJI7iuskjXjtojDg=
 github.com/openshift/build-machinery-go v0.0.0-20200917070002-f171684f77ab/go.mod h1:b1BuldmJlbA/xYtdZvKi+7j5YGB44qJUJDZ9zwiNCfE=
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@@ -913,13 +871,12 @@ github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40T
 github.com/quobyte/api v0.1.8/go.mod h1:jL7lIHrmqQ7yh05OJ+eEEdHr0u/kmT1Ff9iHd+4H6VI=
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 github.com/remyoudompheng/bigfft v0.0.0-20170806203942-52369c62f446/go.mod h1:uYEyJGbgTkfkS4+E/PavXkNJcbFIpEtjt2B0KDQ5+9M=
-github.com/robfig/cron v1.1.0/go.mod h1:JGuDeoQd7Z6yL4zQhZ3OPEVHB7fL6Ka6skscFHfmt2k=
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@@ -930,7 +887,6 @@ github.com/samuel/go-zookeeper v0.0.0-20180130194729-c4fab1ac1bec/go.mod h1:gi+0
 github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=
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 github.com/seccomp/libseccomp-golang v0.9.1/go.mod h1:GbW5+tmTXfcxTToHLXlScSlAvWlF4P2Ca7zGrPiEpWo=
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@@ -944,12 +900,15 @@ github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMB
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@@ -958,9 +917,9 @@ github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkU
 github.com/spf13/cobra v0.0.2-0.20171109065643-2da4a54c5cee/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
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@@ -986,10 +945,10 @@ github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5Cc
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@@ -998,7 +957,6 @@ github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijb
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@@ -1014,15 +972,19 @@ github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
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-go.mongodb.org/mongo-driver v1.0.3/go.mod h1:u7ryQJ+DOzQmeO7zB6MHyr8jkEQvC8vH7qLUO4lqsUM=
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@@ -1032,6 +994,29 @@ go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
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+go.opentelemetry.io/proto/otlp v0.7.0 h1:rwOQPCuKAKmwGKq2aVNnYIibI6wnV7EvzgfTCzcdGg8=
+go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
 go.starlark.net v0.0.0-20200306205701-8dd3e2ee1dd5/go.mod h1:nmDLcffg48OtT/PSW0Hg7FvpRQsQh5OSqIylirxKC7o=
 go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
@@ -1050,18 +1035,13 @@ golang.org/x/crypto v0.0.0-20171113213409-9f005a07e0d3/go.mod h1:6SG95UA2DQfeDnf
 golang.org/x/crypto v0.0.0-20180820150726-614d502a4dac/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
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 golang.org/x/crypto v0.0.0-20190211182817-74369b46fc67/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
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@@ -1100,8 +1080,9 @@ golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHl
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
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@@ -1113,10 +1094,10 @@ golang.org/x/mod v0.1.1-0.20191209134235-331c550502dd/go.mod h1:s0Qsj1ACt9ePp/hM
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
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 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20181005035420-146acd28ed58/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181023162649-9b4f9f5ad519/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
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@@ -1126,8 +1107,6 @@ golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190125091013-d26f9f9a57f3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
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@@ -1139,7 +1118,6 @@ golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLL
 golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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@@ -1159,11 +1137,13 @@ golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81R
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@@ -1172,7 +1152,6 @@ golang.org/x/oauth2 v0.0.0-20190319182350-c85d3e98c914/go.mod h1:gOpvHmFTYa4Iltr
 golang.org/x/oauth2 v0.0.0-20190402181905-9f3314589c9a/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
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 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20201208152858-08078c50e5b5 h1:Lm4OryKCca1vehdsWogr9N4t7NfZxLbJoc/H0w4K4S4=
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@@ -1186,6 +1165,7 @@ golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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@@ -1194,14 +1174,11 @@ golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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@@ -1211,14 +1188,12 @@ golang.org/x/sys v0.0.0-20190514135907-3a4b5fb9f71f/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190523142557-0e01d883c5c5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@@ -1246,6 +1221,7 @@ golang.org/x/sys v0.0.0-20200501052902-10377860bb8e/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -1253,14 +1229,16 @@ golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -1276,6 +1254,7 @@ golang.org/x/text v0.3.1-0.20181227161524-e6919f6577db/go.mod h1:bEr9sfX3Q8Zfm5f
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@@ -1286,14 +1265,14 @@ golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1/go.mod h1:tRJNPiyCQ0inRvYxb
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@@ -1304,8 +1283,6 @@ golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBn
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@@ -1320,7 +1297,6 @@ golang.org/x/tools v0.0.0-20191115202509-3a792d9c32b2/go.mod h1:b+2E5dAYhXwXZwtn
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@@ -1347,8 +1323,8 @@ golang.org/x/tools v0.0.0-20200804011535-6c149bb5ef0d/go.mod h1:njjCfa9FT2d7l9Bc
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-golang.org/x/tools v0.1.0 h1:po9/4sTYwZU9lPhi1tOrb4hCv3qrhiQ77LZfGa2OjwY=
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-golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
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@@ -1433,10 +1409,10 @@ google.golang.org/genproto v0.0.0-20200729003335-053ba62fc06f/go.mod h1:FWY/as6D
 google.golang.org/genproto v0.0.0-20200804131852-c06518451d9c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20200825200019-8632dd797987/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20201019141844-1ed22bb0c154/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
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@@ -1467,7 +1443,6 @@ gopkg.in/ini.v1 v1.42.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
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 gopkg.in/ldap.v3 v3.0.3/go.mod h1:oxD7NyBuxchC+SgJDE1Q5Od05eGt29SDQVBmV+HYbzw=
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@@ -1487,7 +1462,6 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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-sigs.k8s.io/structured-merge-diff/v4 v4.1.0/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
+sigs.k8s.io/structured-merge-diff/v4 v4.1.2/go.mod h1:j/nl6xW8vLS49O8YvXW1ocPhZawJtm+Yrr7PPRQ0Vg4=
 sigs.k8s.io/testing_frameworks v0.1.1/go.mod h1:VVBKrHmJ6Ekkfz284YKhQePcdycOzNH9qL6ht1zEr/U=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
 sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q=

internal/controller/persistentvolume/persistentvolume.go

@@ -172,10 +172,7 @@ func (r ReconcilePersistentVolume) reconcilePV(ctx context.Context, obj runtime.
 	if pv.Spec.CSI == nil || pv.Spec.CSI.Driver != r.config.DriverName {
 		return nil
 	}
-	pool := pv.Spec.CSI.VolumeAttributes["pool"]
-	journalPool := pv.Spec.CSI.VolumeAttributes["journalPool"]
 	requestName := pv.Name
-	imageName := pv.Spec.CSI.VolumeAttributes["imageName"]
 	volumeHandler := pv.Spec.CSI.VolumeHandle
 	secretName := ""
 	secretNamespace := ""
@@ -210,7 +207,7 @@ func (r ReconcilePersistentVolume) reconcilePV(ctx context.Context, obj runtime.
 	}
 	defer cr.DeleteCredentials()
 
-	rbdVolID, err := rbd.RegenerateJournal(imageName, volumeHandler, pool, journalPool, requestName, cr)
+	rbdVolID, err := rbd.RegenerateJournal(pv.Spec.CSI.VolumeAttributes, volumeHandler, requestName, cr)
 	if err != nil {
 		util.ErrorLogMsg("failed to regenerate journal %s", err)
 

internal/csi-common/driver.go

@@ -88,7 +88,7 @@ func (d *CSIDriver) ValidateControllerServiceRequest(c csi.ControllerServiceCapa
 // AddControllerServiceCapabilities stores the controller capabilities
 // in driver object.
 func (d *CSIDriver) AddControllerServiceCapabilities(cl []csi.ControllerServiceCapability_RPC_Type) {
-	var csc []*csi.ControllerServiceCapability
+	csc := make([]*csi.ControllerServiceCapability, 0, len(cl))
 
 	for _, c := range cl {
 		util.DefaultLog("Enabling controller service capability: %v", c.String())
@@ -101,7 +101,7 @@ func (d *CSIDriver) AddControllerServiceCapabilities(cl []csi.ControllerServiceC
 // AddVolumeCapabilityAccessModes stores volume access modes.
 func (d *CSIDriver) AddVolumeCapabilityAccessModes(
 	vc []csi.VolumeCapability_AccessMode_Mode) []*csi.VolumeCapability_AccessMode {
-	var vca []*csi.VolumeCapability_AccessMode
+	vca := make([]*csi.VolumeCapability_AccessMode, 0, len(vc))
 	for _, c := range vc {
 		util.DefaultLog("Enabling volume access mode: %v", c.String())
 		vca = append(vca, NewVolumeCapabilityAccessMode(c))

internal/rbd/encryption.go

@@ -20,7 +20,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"strconv"
 	"strings"
 
 	"github.com/ceph/ceph-csi/internal/util"
@@ -242,10 +241,27 @@ func (rv *rbdVolume) openEncryptedDevice(ctx context.Context, devicePath string)
 }
 
 func (ri *rbdImage) initKMS(ctx context.Context, volOptions, credentials map[string]string) error {
+	kmsID, err := ri.ParseEncryptionOpts(ctx, volOptions)
+	if err != nil {
+		return err
+	} else if kmsID == "" {
+		return nil
+	}
+
+	err = ri.configureEncryption(kmsID, credentials)
+	if err != nil {
+		return fmt.Errorf("invalid encryption kms configuration: %w", err)
+	}
+
+	return nil
+}
+
+// ParseEncryptionOpts returns kmsID and sets Owner attribute.
+func (ri *rbdImage) ParseEncryptionOpts(ctx context.Context, volOptions map[string]string) (string, error) {
 	var (
-		err       error
+		err              error
-		ok        bool
+		ok               bool
-		encrypted string
+		encrypted, kmsID string
 	)
 
 	// if the KMS is of type VaultToken, additional metadata is needed
@@ -259,23 +275,14 @@ func (ri *rbdImage) initKMS(ctx context.Context, volOptions, credentials map[str
 
 	encrypted, ok = volOptions["encrypted"]
 	if !ok {
-		return nil
+		return "", nil
 	}
-
+	kmsID, err = util.FetchEncryptionKMSID(encrypted, volOptions["encryptionKMSID"])
-	isEncrypted, err := strconv.ParseBool(encrypted)
 	if err != nil {
-		return fmt.Errorf(
+		return "", err
-			"invalid value set in 'encrypted': %s (should be \"true\" or \"false\")", encrypted)
-	} else if !isEncrypted {
-		return nil
 	}
 
-	err = ri.configureEncryption(volOptions["encryptionKMSID"], credentials)
+	return kmsID, nil
-	if err != nil {
-		return fmt.Errorf("invalid encryption kms configuration: %w", err)
-	}
-
-	return nil
 }
 
 // configureEncryption sets up the VolumeEncryption for this rbdImage. Once

internal/rbd/rbd_healer.go

@@ -34,7 +34,7 @@ const (
 )
 
 // accessModeStrToInt convert access mode type string to int32.
-// Makesure to update this function as and when there are new modes introduced.
+// Make sure to update this function as and when there are new modes introduced.
 func accessModeStrToInt(mode v1.PersistentVolumeAccessMode) csi.VolumeCapability_AccessMode_Mode {
 	switch mode {
 	case v1.ReadWriteOnce:
@@ -43,6 +43,8 @@ func accessModeStrToInt(mode v1.PersistentVolumeAccessMode) csi.VolumeCapability
 		return csi.VolumeCapability_AccessMode_MULTI_NODE_READER_ONLY
 	case v1.ReadWriteMany:
 		return csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER
+	case v1.ReadWriteOncePod:
+		return csi.VolumeCapability_AccessMode_SINGLE_NODE_SINGLE_WRITER
 	}
 
 	return csi.VolumeCapability_AccessMode_UNKNOWN

internal/rbd/rbd_journal.go

@@ -522,6 +522,8 @@ func undoVolReservation(ctx context.Context, rbdVol *rbdVolume, cr *util.Credent
 // complete omap mapping between imageName and volumeID.
 
 // RegenerateJournal performs below operations
+// Extract parameters journalPool, pool from volumeAttributes
+// Extract optional parameters volumeNamePrefix, kmsID, owner from volumeAttributes
 // Extract information from volumeID
 // Get pool ID from pool name
 // Extract uuid from volumeID
@@ -530,25 +532,34 @@ func undoVolReservation(ctx context.Context, rbdVol *rbdVolume, cr *util.Credent
 // The volume handler won't remain same as its contains poolID,clusterID etc
 // which are not same across clusters.
 func RegenerateJournal(
-	imageName, volumeID, pool, journalPool, requestName string,
+	volumeAttributes map[string]string,
+	volumeID, requestName string,
 	cr *util.Credentials) (string, error) {
 	ctx := context.Background()
 	var (
 		options map[string]string
 		vi      util.CSIIdentifier
 		rbdVol  *rbdVolume
+		kmsID   string
+		err     error
+		ok      bool
 	)
 
 	options = make(map[string]string)
 	rbdVol = &rbdVolume{}
 	rbdVol.VolID = volumeID
 
-	err := vi.DecomposeCSIID(rbdVol.VolID)
+	err = vi.DecomposeCSIID(rbdVol.VolID)
 	if err != nil {
 		return "", fmt.Errorf("%w: error decoding volume ID (%s) (%s)",
 			ErrInvalidVolID, err, rbdVol.VolID)
 	}
 
+	kmsID, err = rbdVol.ParseEncryptionOpts(ctx, volumeAttributes)
+	if err != nil {
+		return "", err
+	}
+
 	// TODO check clusterID mapping exists
 	rbdVol.ClusterID = vi.ClusterID
 	options["clusterID"] = rbdVol.ClusterID
@@ -560,16 +571,18 @@ func RegenerateJournal(
 		return "", err
 	}
 
-	rbdVol.Pool = pool
+	if rbdVol.Pool, ok = volumeAttributes["pool"]; !ok {
+		return "", errors.New("required 'pool' parameter missing in volume attributes")
+	}
 	err = rbdVol.Connect(cr)
 	if err != nil {
 		return "", err
 	}
-	rbdVol.JournalPool = journalPool
+	rbdVol.JournalPool = volumeAttributes["journalPool"]
 	if rbdVol.JournalPool == "" {
 		rbdVol.JournalPool = rbdVol.Pool
 	}
-	volJournal = journal.NewCSIVolumeJournal("default")
+	volJournal = journal.NewCSIVolumeJournal(CSIInstanceID)
 	j, err := volJournal.Connect(rbdVol.Monitors, rbdVol.RadosNamespace, cr)
 	if err != nil {
 		return "", err
@@ -582,9 +595,8 @@ func RegenerateJournal(
 	}
 
 	rbdVol.RequestName = requestName
-	// TODO add Nameprefix also
+	rbdVol.NamePrefix = volumeAttributes["volumeNamePrefix"]
 
-	kmsID := ""
 	imageData, err := j.CheckReservation(
 		ctx, rbdVol.JournalPool, rbdVol.RequestName, rbdVol.NamePrefix, "", kmsID)
 	if err != nil {

internal/util/crypto.go

@@ -23,6 +23,7 @@ import (
 	"errors"
 	"fmt"
 	"path"
+	"strconv"
 	"strings"
 )
 
@@ -60,6 +61,25 @@ type VolumeEncryption struct {
 	id string
 }
 
+// FetchEncryptionKMSID returns non-empty kmsID if 'encrypted' parameter is evaluated as true.
+func FetchEncryptionKMSID(encrypted, kmsID string) (string, error) {
+	isEncrypted, err := strconv.ParseBool(encrypted)
+	if err != nil {
+		return "", fmt.Errorf(
+			"invalid value set in 'encrypted': %s (should be \"true\" or \"false\"): %w",
+			encrypted, err)
+	}
+	if !isEncrypted {
+		return "", nil
+	}
+
+	if kmsID == "" {
+		kmsID = defaultKMSType
+	}
+
+	return kmsID, nil
+}
+
 // NewVolumeEncryption creates a new instance of VolumeEncryption and
 // configures the DEKStore. If the KMS does not provide a DEKStore interface,
 // the VolumeEncryption will be created *and* a ErrDEKStoreNeeded is returned.

scripts/Dockerfile.test

@@ -29,6 +29,7 @@ RUN source /build.env \
 	librbd-devel \
 	rubygems \
 	ShellCheck \
+      codespell \
 	yamllint \
 	npm \
 	diffutils \

scripts/codespell.conf

@@ -0,0 +1,4 @@
+[codespell]
+skip = .git,./vendor,./docs/design/proposals/images
+ignore-words-list = ExtraVersion,extraversion,ba
+check-filenames = true

scripts/install-helm.sh

@@ -1,4 +1,4 @@
-#!/bin/bash -e
+#!/bin/bash -E
 
 #Based on ideas from https://github.com/rook/rook/blob/master/tests/scripts/helm.sh
 
@@ -7,6 +7,8 @@ TEMP="/tmp/cephcsi-helm-test"
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
 # shellcheck source=build.env
 [ ! -e "${SCRIPT_DIR}"/../build.env ] || source "${SCRIPT_DIR}"/../build.env
+# shellcheck disable=SC1091
+[ ! -e "${SCRIPT_DIR}"/utils.sh ] || source "${SCRIPT_DIR}"/utils.sh
 
 HELM="helm"
 HELM_VERSION=${HELM_VERSION:-"latest"}
@@ -54,12 +56,12 @@ check_deployment_status() {
     NAMESPACE=$2
     echo "Checking Deployment status for label $LABEL in Namespace $NAMESPACE"
     for ((retry = 0; retry <= DEPLOY_TIMEOUT; retry = retry + 5)); do
-        total_replicas=$(kubectl get deployment -l "$LABEL" -n "$NAMESPACE" -o jsonpath='{.items[0].status.replicas}')
+        total_replicas=$(kubectl_retry get deployment -l "$LABEL" -n "$NAMESPACE" -o jsonpath='{.items[0].status.replicas}')
 
-        ready_replicas=$(kubectl get deployment -l "$LABEL" -n "$NAMESPACE" -o jsonpath='{.items[0].status.readyReplicas}')
+        ready_replicas=$(kubectl_retry get deployment -l "$LABEL" -n "$NAMESPACE" -o jsonpath='{.items[0].status.readyReplicas}')
         if [ "$total_replicas" != "$ready_replicas" ]; then
             echo "Total replicas $total_replicas is not equal to ready count $ready_replicas"
-            kubectl get deployment -l "$LABEL" -n "$NAMESPACE"
+            kubectl_retry get deployment -l "$LABEL" -n "$NAMESPACE"
             sleep 10
         else
             echo "Total replicas $total_replicas is equal to ready count $ready_replicas"
@@ -78,12 +80,12 @@ check_daemonset_status() {
     NAMESPACE=$2
     echo "Checking Daemonset status for label $LABEL in Namespace $NAMESPACE"
     for ((retry = 0; retry <= DEPLOY_TIMEOUT; retry = retry + 5)); do
-        total_replicas=$(kubectl get daemonset -l "$LABEL" -n "$NAMESPACE" -o jsonpath='{.items[0].status.numberAvailable}')
+        total_replicas=$(kubectl_retry get daemonset -l "$LABEL" -n "$NAMESPACE" -o jsonpath='{.items[0].status.numberAvailable}')
 
-        ready_replicas=$(kubectl get daemonset -l "$LABEL" -n "$NAMESPACE" -o jsonpath='{.items[0].status.numberReady}')
+        ready_replicas=$(kubectl_retry get daemonset -l "$LABEL" -n "$NAMESPACE" -o jsonpath='{.items[0].status.numberReady}')
         if [ "$total_replicas" != "$ready_replicas" ]; then
             echo "Total replicas $total_replicas is not equal to ready count $ready_replicas"
-            kubectl get daemonset -l "$LABEL" -n "$NAMESPACE"
+            kubectl_retry get daemonset -l "$LABEL" -n "$NAMESPACE"
             sleep 10
         else
             echo "Total replicas $total_replicas is equal to ready count $ready_replicas"
@@ -119,11 +121,11 @@ detectArch() {
 }
 
 fetch_template_values() {
-    TOOLBOX_POD=$(kubectl -n rook-ceph get pods -l app=rook-ceph-tools -o=jsonpath='{.items[0].metadata.name}')
+    TOOLBOX_POD=$(kubectl_retry -n rook-ceph get pods -l app=rook-ceph-tools -o=jsonpath='{.items[0].metadata.name}')
     # fetch fsid to populate the clusterID in storageclass
-    FS_ID=$(kubectl -n rook-ceph exec "${TOOLBOX_POD}" -- ceph fsid)
+    FS_ID=$(kubectl_retry -n rook-ceph exec "${TOOLBOX_POD}" -- ceph fsid)
     # fetch the admin key corresponding to the adminID
-    ADMIN_KEY=$(kubectl -n rook-ceph exec "${TOOLBOX_POD}" -- ceph auth get-key client.admin)
+    ADMIN_KEY=$(kubectl_retry -n rook-ceph exec "${TOOLBOX_POD}" -- ceph auth get-key client.admin)
 }
 
 install() {
@@ -146,10 +148,12 @@ install_cephcsi_helm_charts() {
         NAMESPACE="default"
     fi
 
+    kubectl_retry create namespace ${NAMESPACE}
+
     # label the nodes uniformly for domain information
-    for node in $(kubectl get node -o jsonpath='{.items[*].metadata.name}'); do
+    for node in $(kubectl_retry get node -o jsonpath='{.items[*].metadata.name}'); do
-        kubectl label node/"${node}" ${NODE_LABEL_REGION}=${REGION_VALUE}
+        kubectl_retry label node/"${node}" ${NODE_LABEL_REGION}=${REGION_VALUE}
-        kubectl label node/"${node}" ${NODE_LABEL_ZONE}=${ZONE_VALUE}
+        kubectl_retry label node/"${node}" ${NODE_LABEL_ZONE}=${ZONE_VALUE}
     done
 
     # deploy storageclass if DEPLOY_SC flag is set
@@ -171,7 +175,7 @@ install_cephcsi_helm_charts() {
 
     # deleting configmap as a workaround to avoid configmap already present
     # issue when installing ceph-csi-rbd
-    kubectl delete cm ceph-csi-config --namespace ${NAMESPACE}
+    kubectl_retry delete cm ceph-csi-config --namespace ${NAMESPACE}
     # shellcheck disable=SC2086
     "${HELM}" install --namespace ${NAMESPACE} --set provisioner.fullnameOverride=csi-rbdplugin-provisioner --set nodeplugin.fullnameOverride=csi-rbdplugin --set configMapName=ceph-csi-config --set provisioner.podSecurityPolicy.enabled=true --set nodeplugin.podSecurityPolicy.enabled=true --set provisioner.replicaCount=1 ${SET_SC_TEMPLATE_VALUES} ${RBD_SECRET_TEMPLATE_VALUES} ${RBD_CHART_NAME} "${SCRIPT_DIR}"/../charts/ceph-csi-rbd --set topology.enabled=true --set topology.domainLabels="{${NODE_LABEL_REGION},${NODE_LABEL_ZONE}}" --set provisioner.maxSnapshotsOnImage=3 --set provisioner.minSnapshotsOnImage=2
 
@@ -182,9 +186,9 @@ install_cephcsi_helm_charts() {
 
 cleanup_cephcsi_helm_charts() {
     # remove set labels
-    for node in $(kubectl get node --no-headers | cut -f 1 -d ' '); do
+    for node in $(kubectl_retry get node --no-headers | cut -f 1 -d ' '); do
-        kubectl label node/"$node" test.failure-domain/region-
+        kubectl_retry label node/"$node" test.failure-domain/region-
-        kubectl label node/"$node" test.failure-domain/zone-
+        kubectl_retry label node/"$node" test.failure-domain/zone-
     done
     # TODO/LATER we could remove the CSI labels that would have been set as well
     NAMESPACE=$1
@@ -193,6 +197,7 @@ cleanup_cephcsi_helm_charts() {
     fi
     "${HELM}" uninstall ${CEPHFS_CHART_NAME} --namespace ${NAMESPACE}
     "${HELM}" uninstall ${RBD_CHART_NAME} --namespace ${NAMESPACE}
+    kubectl_retry delete namespace ${NAMESPACE}
 }
 
 helm_reset() {

scripts/rook.sh

@@ -4,8 +4,10 @@ ROOK_VERSION=${ROOK_VERSION:-"v1.6.2"}
 ROOK_DEPLOY_TIMEOUT=${ROOK_DEPLOY_TIMEOUT:-300}
 ROOK_URL="https://raw.githubusercontent.com/rook/rook/${ROOK_VERSION}/cluster/examples/kubernetes/ceph"
 ROOK_BLOCK_POOL_NAME=${ROOK_BLOCK_POOL_NAME:-"newrbdpool"}
-KUBECTL_RETRY=5
+
-KUBECTL_RETRY_DELAY=10
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
+# shellcheck disable=SC1091
+[ ! -e "${SCRIPT_DIR}"/utils.sh ] || source "${SCRIPT_DIR}"/utils.sh
 
 trap log_errors ERR
 
@@ -30,56 +32,6 @@ rook_version() {
 	echo "${ROOK_VERSION#v}" | cut -d'.' -f"${1}"
 }
 
-kubectl_retry() {
-    local retries=0 action="${1}" ret=0 stdout stderr
-    shift
-
-    # temporary files for kubectl output
-    stdout=$(mktemp rook-kubectl-stdout.XXXXXXXX)
-    stderr=$(mktemp rook-kubectl-stderr.XXXXXXXX)
-
-    while ! kubectl "${action}" "${@}" 2>"${stderr}" 1>"${stdout}"
-    do
-        # in case of a failure when running "create", ignore errors with "AlreadyExists"
-        if [ "${action}" == 'create' ]
-        then
-            # count lines in stderr that do not have "AlreadyExists"
-            ret=$(grep -cvw 'AlreadyExists' "${stderr}")
-            if [ "${ret}" -eq 0 ]
-            then
-                # Success! stderr is empty after removing all "AlreadyExists" lines.
-                break
-            fi
-        fi
-
-        retries=$((retries+1))
-        if [ ${retries} -eq ${KUBECTL_RETRY} ]
-        then
-            ret=1
-            break
-        fi
-
-	# log stderr and empty the tmpfile
-	cat "${stderr}" > /dev/stderr
-	true > "${stderr}"
-	echo "kubectl_retry ${*} failed, will retry in ${KUBECTL_RETRY_DELAY} seconds"
-
-        sleep ${KUBECTL_RETRY_DELAY}
-
-	# reset ret so that a next working kubectl does not cause a non-zero
-	# return of the function
-        ret=0
-    done
-
-    # write output so that calling functions can consume it
-    cat "${stdout}" > /dev/stdout
-    cat "${stderr}" > /dev/stderr
-
-    rm -f "${stdout}" "${stderr}"
-
-    return ${ret}
-}
-
 function deploy_rook() {
         kubectl_retry create -f "${ROOK_URL}/common.yaml"
 

scripts/utils.sh

@@ -0,0 +1,66 @@
+#!/bin/bash -E
+
+KUBECTL_RETRY=5
+KUBECTL_RETRY_DELAY=10
+
+kubectl_retry() {
+    local retries=0 action="${1}" ret=0 stdout stderr
+    shift
+
+    # temporary files for kubectl output
+    stdout=$(mktemp rook-kubectl-stdout.XXXXXXXX)
+    stderr=$(mktemp rook-kubectl-stderr.XXXXXXXX)
+
+    while ! kubectl "${action}" "${@}" 2>"${stderr}" 1>"${stdout}"
+    do
+        # in case of a failure when running "create", ignore errors with "AlreadyExists"
+        if [ "${action}" == 'create' ]
+        then
+            # count lines in stderr that do not have "AlreadyExists"
+            ret=$(grep -cvw 'AlreadyExists' "${stderr}")
+            if [ "${ret}" -eq 0 ]
+            then
+                # Success! stderr is empty after removing all "AlreadyExists" lines.
+                break
+            fi
+        fi
+
+        # in case of a failure when running "delete", ignore errors with "NotFound"
+        if [ "${action}" == 'delete' ]
+        then
+            # count lines in stderr that do not have "NotFound"
+            ret=$(grep -cvw 'NotFound' "${stderr}")
+            if [ "${ret}" -eq 0 ]
+            then
+                # Success! stderr is empty after removing all "NotFound" lines.
+                break
+            fi
+        fi
+
+        retries=$((retries+1))
+        if [ ${retries} -eq ${KUBECTL_RETRY} ]
+        then
+            ret=1
+            break
+        fi
+
+	# log stderr and empty the tmpfile
+	cat "${stderr}" > /dev/stderr
+	true > "${stderr}"
+	echo "kubectl_retry ${*} failed, will retry in ${KUBECTL_RETRY_DELAY} seconds"
+
+        sleep ${KUBECTL_RETRY_DELAY}
+
+	# reset ret so that a next working kubectl does not cause a non-zero
+	# return of the function
+        ret=0
+    done
+
+    # write output so that calling functions can consume it
+    cat "${stdout}" > /dev/stdout
+    cat "${stderr}" > /dev/stderr
+
+    rm -f "${stdout}" "${stderr}"
+
+    return ${ret}
+}

vendor/github.com/ceph/go-ceph/cephfs/admin/mgrmodule.go

@@ -0,0 +1,54 @@
+package admin
+
+import (
+	"github.com/ceph/go-ceph/internal/commands"
+)
+
+const mirroring = "mirroring"
+
+// EnableModule will enable the specified manager module.
+//
+// Similar To:
+//  ceph mgr module enable <module> [--force]
+func (fsa *FSAdmin) EnableModule(module string, force bool) error {
+	m := map[string]string{
+		"prefix": "mgr module enable",
+		"module": module,
+		"format": "json",
+	}
+	if force {
+		m["force"] = "--force"
+	}
+	// Why is this _only_ part of the mon command json? You'd think a mgr
+	// command would be available as a MgrCommand but I couldn't figure it out.
+	return commands.MarshalMonCommand(fsa.conn, m).NoData().End()
+}
+
+// DisableModule will disable the specified manager module.
+//
+// Similar To:
+//  ceph mgr module disable <module>
+func (fsa *FSAdmin) DisableModule(module string) error {
+	m := map[string]string{
+		"prefix": "mgr module disable",
+		"module": module,
+		"format": "json",
+	}
+	return commands.MarshalMonCommand(fsa.conn, m).NoData().End()
+}
+
+// EnableMirroringModule will enable the mirroring module for cephfs.
+//
+// Similar To:
+//  ceph mgr module enable mirroring [--force]
+func (fsa *FSAdmin) EnableMirroringModule(force bool) error {
+	return fsa.EnableModule(mirroring, force)
+}
+
+// DisableMirroringModule will disable the mirroring module for cephfs.
+//
+// Similar To:
+//  ceph mgr module disable mirroring
+func (fsa *FSAdmin) DisableMirroringModule() error {
+	return fsa.DisableModule(mirroring)
+}

vendor/github.com/ceph/go-ceph/cephfs/admin/mirror.go

@@ -0,0 +1,234 @@
+package admin
+
+import (
+	ccom "github.com/ceph/go-ceph/common/commands"
+	"github.com/ceph/go-ceph/internal/commands"
+)
+
+// SnapshotMirrorAdmin helps administer the snapshot mirroring features of
+// cephfs. Snapshot mirroring is only available in ceph pacific and later.
+type SnapshotMirrorAdmin struct {
+	conn ccom.MgrCommander
+}
+
+// SnapshotMirror returns a new SnapshotMirrorAdmin to be used for the
+// administration of snapshot mirroring features.
+func (fsa *FSAdmin) SnapshotMirror() *SnapshotMirrorAdmin {
+	return &SnapshotMirrorAdmin{conn: fsa.conn}
+}
+
+// Enable snapshot mirroring for the given file system.
+//
+// Similar To:
+//  ceph fs snapshot mirror enable <fs_name>
+func (sma *SnapshotMirrorAdmin) Enable(fsname string) error {
+	m := map[string]string{
+		"prefix":  "fs snapshot mirror enable",
+		"fs_name": fsname,
+		"format":  "json",
+	}
+	return commands.MarshalMgrCommand(sma.conn, m).NoStatus().EmptyBody().End()
+}
+
+// Disable snapshot mirroring for the given file system.
+//
+// Similar To:
+//  ceph fs snapshot mirror disable <fs_name>
+func (sma *SnapshotMirrorAdmin) Disable(fsname string) error {
+	m := map[string]string{
+		"prefix":  "fs snapshot mirror disable",
+		"fs_name": fsname,
+		"format":  "json",
+	}
+	return commands.MarshalMgrCommand(sma.conn, m).NoStatus().EmptyBody().End()
+}
+
+// Add a path in the file system to be mirrored.
+//
+// Similar To:
+//  ceph fs snapshot mirror add <fs_name> <path>
+func (sma *SnapshotMirrorAdmin) Add(fsname, path string) error {
+	m := map[string]string{
+		"prefix":  "fs snapshot mirror add",
+		"fs_name": fsname,
+		"path":    path,
+		"format":  "json",
+	}
+	return commands.MarshalMgrCommand(sma.conn, m).NoStatus().EmptyBody().End()
+}
+
+// Remove a path in the file system from mirroring.
+//
+// Similar To:
+//  ceph fs snapshot mirror remove <fs_name> <path>
+func (sma *SnapshotMirrorAdmin) Remove(fsname, path string) error {
+	m := map[string]string{
+		"prefix":  "fs snapshot mirror remove",
+		"fs_name": fsname,
+		"path":    path,
+		"format":  "json",
+	}
+	return commands.MarshalMgrCommand(sma.conn, m).NoStatus().EmptyBody().End()
+}
+
+type bootstrapTokenResponse struct {
+	Token string `json:"token"`
+}
+
+// CreatePeerBootstrapToken returns a token that can be used to create
+// a peering association between this site an another site.
+//
+// Similar To:
+//  ceph fs snapshot mirror peer_bootstrap create <fs_name> <client_entity> <site-name>
+func (sma *SnapshotMirrorAdmin) CreatePeerBootstrapToken(
+	fsname, client, site string) (string, error) {
+	m := map[string]string{
+		"prefix":      "fs snapshot mirror peer_bootstrap create",
+		"fs_name":     fsname,
+		"client_name": client,
+		"format":      "json",
+	}
+	if site != "" {
+		m["site_name"] = site
+	}
+	var bt bootstrapTokenResponse
+	err := commands.MarshalMgrCommand(sma.conn, m).NoStatus().Unmarshal(&bt).End()
+	return bt.Token, err
+}
+
+// ImportPeerBoostrapToken creates an association between another site, one
+// that has provided a token, with the current site.
+//
+// Similar To:
+//  ceph fs snapshot mirror peer_bootstrap import <fs_name> <token>
+func (sma *SnapshotMirrorAdmin) ImportPeerBoostrapToken(fsname, token string) error {
+	m := map[string]string{
+		"prefix":  "fs snapshot mirror peer_bootstrap import",
+		"fs_name": fsname,
+		"token":   token,
+		"format":  "json",
+	}
+	return commands.MarshalMgrCommand(sma.conn, m).NoStatus().EmptyBody().End()
+}
+
+// DaemonID represents the ID of a cephfs mirroring daemon.
+type DaemonID uint
+
+// FileSystemID represents the ID of a cephfs file system.
+type FileSystemID uint
+
+// PeerUUID represents the UUID of a cephfs mirroring peer.
+type PeerUUID string
+
+// DaemonStatusPeer contains fields detailing a remote peer.
+type DaemonStatusPeer struct {
+	ClientName  string `json:"client_name"`
+	ClusterName string `json:"cluster_name"`
+	FSName      string `json:"fs_name"`
+}
+
+// DaemonStatusPeerStats contains fields detailing the a remote peer's stats.
+type DaemonStatusPeerStats struct {
+	FailureCount  uint64 `json:"failure_count"`
+	RecoveryCount uint64 `json:"recovery_count"`
+}
+
+// DaemonStatusPeerInfo contains fields representing information about a remote peer.
+type DaemonStatusPeerInfo struct {
+	UUID   PeerUUID              `json:"uuid"`
+	Remote DaemonStatusPeer      `json:"remote"`
+	Stats  DaemonStatusPeerStats `json:"stats"`
+}
+
+// DaemonStatusFileSystemInfo represents information about a mirrored file system.
+type DaemonStatusFileSystemInfo struct {
+	FileSystemID   FileSystemID           `json:"filesystem_id"`
+	Name           string                 `json:"name"`
+	DirectoryCount int64                  `json:"directory_count"`
+	Peers          []DaemonStatusPeerInfo `json:"peers"`
+}
+
+// DaemonStatusInfo maps file system IDs to information about that file system.
+type DaemonStatusInfo struct {
+	DaemonID    DaemonID                     `json:"daemon_id"`
+	FileSystems []DaemonStatusFileSystemInfo `json:"filesystems"`
+}
+
+// DaemonStatusResults maps mirroring daemon IDs to information about that
+// mirroring daemon.
+type DaemonStatusResults []DaemonStatusInfo
+
+func parseDaemonStatus(res response) (DaemonStatusResults, error) {
+	var dsr DaemonStatusResults
+	if err := res.NoStatus().Unmarshal(&dsr).End(); err != nil {
+		return nil, err
+	}
+	return dsr, nil
+}
+
+// DaemonStatus returns information on the status of cephfs mirroring daemons
+// associated with the given file system.
+//
+// Similar To:
+//  ceph fs snapshot mirror daemon status <fs_name>
+func (sma *SnapshotMirrorAdmin) DaemonStatus(fsname string) (
+	DaemonStatusResults, error) {
+	// ---
+	m := map[string]string{
+		"prefix":  "fs snapshot mirror daemon status",
+		"fs_name": fsname,
+		"format":  "json",
+	}
+	return parseDaemonStatus(commands.MarshalMgrCommand(sma.conn, m))
+}
+
+// PeerInfo includes information about a cephfs mirroring peer.
+type PeerInfo struct {
+	ClientName string `json:"client_name"`
+	SiteName   string `json:"site_name"`
+	FSName     string `json:"fs_name"`
+	MonHost    string `json:"mon_host"`
+}
+
+// PeerListResults maps a peer's UUID to information about that peer.
+type PeerListResults map[PeerUUID]PeerInfo
+
+func parsePeerList(res response) (PeerListResults, error) {
+	var plr PeerListResults
+	if err := res.NoStatus().Unmarshal(&plr).End(); err != nil {
+		return nil, err
+	}
+	return plr, nil
+}
+
+// PeerList returns information about peers associated with the given file system.
+//
+// Similar To:
+//  ceph fs snapshot mirror peer_list <fs_name>
+func (sma *SnapshotMirrorAdmin) PeerList(fsname string) (
+	PeerListResults, error) {
+	// ---
+	m := map[string]string{
+		"prefix":  "fs snapshot mirror peer_list",
+		"fs_name": fsname,
+		"format":  "json",
+	}
+	return parsePeerList(commands.MarshalMgrCommand(sma.conn, m))
+}
+
+/*
+ DirMap - figure out what last_shuffled is supposed to mean and, if it is a time
+          like it seems to be, how best to represent in Go.
+
+ DirMap TODO
+ceph fs snapshot mirror dirmap
+func (sma *SnapshotMirrorAdmin) DirMap(fsname, path string) error {
+	m := map[string]string{
+		"prefix":  "fs snapshot mirror dirmap",
+		"fs_name": fsname,
+		"path":    path,
+		"format":  "json",
+	}
+	return commands.MarshalMgrCommand(sma.conn, m).NoStatus().EmptyBody().End()
+}
+*/

vendor/github.com/ceph/go-ceph/internal/commands/response.go

@@ -110,6 +110,23 @@ func (r Response) NoBody() Response {
 	return r
 }
 
+// EmptyBody is similar to NoBody but also accepts an empty JSON object.
+func (r Response) EmptyBody() Response {
+	if !r.Ok() {
+		return r
+	}
+	if len(r.body) != 0 {
+		d := map[string]interface{}{}
+		if err := json.Unmarshal(r.body, &d); err != nil {
+			return Response{r.body, r.status, err}
+		}
+		if len(d) != 0 {
+			return Response{r.body, r.status, ErrBodyNotEmpty}
+		}
+	}
+	return r
+}
+
 // NoData asserts that the input response has no status or body values.
 func (r Response) NoData() Response {
 	return r.NoStatus().NoBody()

vendor/github.com/ceph/go-ceph/rados/conn.go

@@ -38,13 +38,13 @@ func (c *Conn) Cluster() ClusterRef {
 
 // PingMonitor sends a ping to a monitor and returns the reply.
 func (c *Conn) PingMonitor(id string) (string, error) {
-	c_id := C.CString(id)
+	cid := C.CString(id)
-	defer C.free(unsafe.Pointer(c_id))
+	defer C.free(unsafe.Pointer(cid))
 
 	var strlen C.size_t
 	var strout *C.char
 
-	ret := C.rados_ping_monitor(c.cluster, c_id, &strout, &strlen)
+	ret := C.rados_ping_monitor(c.cluster, cid, &strout, &strlen)
 	defer C.rados_buffer_free(strout)
 
 	if ret == 0 {
@@ -75,9 +75,9 @@ func (c *Conn) Shutdown() {
 
 // ReadConfigFile configures the connection using a Ceph configuration file.
 func (c *Conn) ReadConfigFile(path string) error {
-	c_path := C.CString(path)
+	cPath := C.CString(path)
-	defer C.free(unsafe.Pointer(c_path))
+	defer C.free(unsafe.Pointer(cPath))
-	ret := C.rados_conf_read_file(c.cluster, c_path)
+	ret := C.rados_conf_read_file(c.cluster, cPath)
 	return getError(ret)
 }
 
@@ -94,10 +94,10 @@ func (c *Conn) ReadDefaultConfigFile() error {
 //  int rados_ioctx_create(rados_t cluster, const char *pool_name,
 //                         rados_ioctx_t *ioctx);
 func (c *Conn) OpenIOContext(pool string) (*IOContext, error) {
-	c_pool := C.CString(pool)
+	cPool := C.CString(pool)
-	defer C.free(unsafe.Pointer(c_pool))
+	defer C.free(unsafe.Pointer(cPool))
 	ioctx := &IOContext{}
-	ret := C.rados_ioctx_create(c.cluster, c_pool, &ioctx.ioctx)
+	ret := C.rados_ioctx_create(c.cluster, cPool, &ioctx.ioctx)
 	if ret == 0 {
 		return ioctx, nil
 	}
@@ -127,10 +127,10 @@ func (c *Conn) ListPools() (names []string, err error) {
 // SetConfigOption sets the value of the configuration option identified by
 // the given name.
 func (c *Conn) SetConfigOption(option, value string) error {
-	c_opt, c_val := C.CString(option), C.CString(value)
+	cOpt, cVal := C.CString(option), C.CString(value)
-	defer C.free(unsafe.Pointer(c_opt))
+	defer C.free(unsafe.Pointer(cOpt))
-	defer C.free(unsafe.Pointer(c_val))
+	defer C.free(unsafe.Pointer(cVal))
-	ret := C.rados_conf_set(c.cluster, c_opt, c_val)
+	ret := C.rados_conf_set(c.cluster, cOpt, cVal)
 	return getError(ret)
 }
 
@@ -179,16 +179,16 @@ func (c *Conn) GetClusterStats() (stat ClusterStat, err error) {
 	if err := c.ensure_connected(); err != nil {
 		return ClusterStat{}, err
 	}
-	c_stat := C.struct_rados_cluster_stat_t{}
+	cStat := C.struct_rados_cluster_stat_t{}
-	ret := C.rados_cluster_stat(c.cluster, &c_stat)
+	ret := C.rados_cluster_stat(c.cluster, &cStat)
 	if ret < 0 {
 		return ClusterStat{}, getError(ret)
 	}
 	return ClusterStat{
-		Kb:          uint64(c_stat.kb),
+		Kb:          uint64(cStat.kb),
-		Kb_used:     uint64(c_stat.kb_used),
+		Kb_used:     uint64(cStat.kb_used),
-		Kb_avail:    uint64(c_stat.kb_avail),
+		Kb_avail:    uint64(cStat.kb_avail),
-		Num_objects: uint64(c_stat.num_objects),
+		Num_objects: uint64(cStat.num_objects),
 	}, nil
 }
 
@@ -261,9 +261,9 @@ func (c *Conn) GetInstanceID() uint64 {
 
 // MakePool creates a new pool with default settings.
 func (c *Conn) MakePool(name string) error {
-	c_name := C.CString(name)
+	cName := C.CString(name)
-	defer C.free(unsafe.Pointer(c_name))
+	defer C.free(unsafe.Pointer(cName))
-	ret := C.rados_pool_create(c.cluster, c_name)
+	ret := C.rados_pool_create(c.cluster, cName)
 	return getError(ret)
 }
 
@@ -272,9 +272,9 @@ func (c *Conn) DeletePool(name string) error {
 	if err := c.ensure_connected(); err != nil {
 		return err
 	}
-	c_name := C.CString(name)
+	cName := C.CString(name)
-	defer C.free(unsafe.Pointer(c_name))
+	defer C.free(unsafe.Pointer(cName))
-	ret := C.rados_pool_delete(c.cluster, c_name)
+	ret := C.rados_pool_delete(c.cluster, cName)
 	return getError(ret)
 }
 
@@ -283,9 +283,9 @@ func (c *Conn) GetPoolByName(name string) (int64, error) {
 	if err := c.ensure_connected(); err != nil {
 		return 0, err
 	}
-	c_name := C.CString(name)
+	cName := C.CString(name)
-	defer C.free(unsafe.Pointer(c_name))
+	defer C.free(unsafe.Pointer(cName))
-	ret := int64(C.rados_pool_lookup(c.cluster, c_name))
+	ret := int64(C.rados_pool_lookup(c.cluster, cName))
 	if ret < 0 {
 		return 0, radosError(ret)
 	}
@@ -298,8 +298,8 @@ func (c *Conn) GetPoolByID(id int64) (string, error) {
 	if err := c.ensure_connected(); err != nil {
 		return "", err
 	}
-	c_id := C.int64_t(id)
+	cid := C.int64_t(id)
-	ret := int(C.rados_pool_reverse_lookup(c.cluster, c_id, (*C.char)(unsafe.Pointer(&buf[0])), C.size_t(len(buf))))
+	ret := int(C.rados_pool_reverse_lookup(c.cluster, cid, (*C.char)(unsafe.Pointer(&buf[0])), C.size_t(len(buf))))
 	if ret < 0 {
 		return "", radosError(ret)
 	}

vendor/github.com/ceph/go-ceph/rados/ioctx.go

@@ -114,12 +114,12 @@ func (ioctx *IOContext) Pointer() unsafe.Pointer {
 //  void rados_ioctx_set_namespace(rados_ioctx_t io,
 //                                 const char *nspace);
 func (ioctx *IOContext) SetNamespace(namespace string) {
-	var c_ns *C.char
+	var cns *C.char
 	if len(namespace) > 0 {
-		c_ns = C.CString(namespace)
+		cns = C.CString(namespace)
-		defer C.free(unsafe.Pointer(c_ns))
+		defer C.free(unsafe.Pointer(cns))
 	}
-	C.rados_ioctx_set_namespace(ioctx.ioctx, c_ns)
+	C.rados_ioctx_set_namespace(ioctx.ioctx, cns)
 }
 
 // Create a new object with key oid.
@@ -137,15 +137,15 @@ func (ioctx *IOContext) Create(oid string, exclusive CreateOption) error {
 // Write writes len(data) bytes to the object with key oid starting at byte
 // offset offset. It returns an error, if any.
 func (ioctx *IOContext) Write(oid string, data []byte, offset uint64) error {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
 
 	dataPointer := unsafe.Pointer(nil)
 	if len(data) > 0 {
 		dataPointer = unsafe.Pointer(&data[0])
 	}
 
-	ret := C.rados_write(ioctx.ioctx, c_oid,
+	ret := C.rados_write(ioctx.ioctx, coid,
 		(*C.char)(dataPointer),
 		(C.size_t)(len(data)),
 		(C.uint64_t)(offset))
@@ -157,10 +157,10 @@ func (ioctx *IOContext) Write(oid string, data []byte, offset uint64) error {
 // The object is filled with the provided data. If the object exists,
 // it is atomically truncated and then written. It returns an error, if any.
 func (ioctx *IOContext) WriteFull(oid string, data []byte) error {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
 
-	ret := C.rados_write_full(ioctx.ioctx, c_oid,
+	ret := C.rados_write_full(ioctx.ioctx, coid,
 		(*C.char)(unsafe.Pointer(&data[0])),
 		(C.size_t)(len(data)))
 	return getError(ret)
@@ -170,10 +170,10 @@ func (ioctx *IOContext) WriteFull(oid string, data []byte) error {
 // The object is appended with the provided data. If the object exists,
 // it is atomically appended to. It returns an error, if any.
 func (ioctx *IOContext) Append(oid string, data []byte) error {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
 
-	ret := C.rados_append(ioctx.ioctx, c_oid,
+	ret := C.rados_append(ioctx.ioctx, coid,
 		(*C.char)(unsafe.Pointer(&data[0])),
 		(C.size_t)(len(data)))
 	return getError(ret)
@@ -182,8 +182,8 @@ func (ioctx *IOContext) Append(oid string, data []byte) error {
 // Read reads up to len(data) bytes from the object with key oid starting at byte
 // offset offset. It returns the number of bytes read and an error, if any.
 func (ioctx *IOContext) Read(oid string, data []byte, offset uint64) (int, error) {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
 
 	var buf *C.char
 	if len(data) > 0 {
@@ -192,7 +192,7 @@ func (ioctx *IOContext) Read(oid string, data []byte, offset uint64) (int, error
 
 	ret := C.rados_read(
 		ioctx.ioctx,
-		c_oid,
+		coid,
 		buf,
 		(C.size_t)(len(data)),
 		(C.uint64_t)(offset))
@@ -205,10 +205,10 @@ func (ioctx *IOContext) Read(oid string, data []byte, offset uint64) (int, error
 
 // Delete deletes the object with key oid. It returns an error, if any.
 func (ioctx *IOContext) Delete(oid string) error {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
 
-	return getError(C.rados_remove(ioctx.ioctx, c_oid))
+	return getError(C.rados_remove(ioctx.ioctx, coid))
 }
 
 // Truncate resizes the object with key oid to size size. If the operation
@@ -216,10 +216,10 @@ func (ioctx *IOContext) Delete(oid string) error {
 // operation shrinks the object, the excess data is removed. It returns an
 // error, if any.
 func (ioctx *IOContext) Truncate(oid string, size uint64) error {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
 
-	return getError(C.rados_trunc(ioctx.ioctx, c_oid, (C.uint64_t)(size)))
+	return getError(C.rados_trunc(ioctx.ioctx, coid, (C.uint64_t)(size)))
 }
 
 // Destroy informs librados that the I/O context is no longer in use.
@@ -236,24 +236,24 @@ func (ioctx *IOContext) Destroy() {
 //  int rados_ioctx_pool_stat(rados_ioctx_t io,
 //                            struct rados_pool_stat_t *stats);
 func (ioctx *IOContext) GetPoolStats() (stat PoolStat, err error) {
-	c_stat := C.struct_rados_pool_stat_t{}
+	cStat := C.struct_rados_pool_stat_t{}
-	ret := C.rados_ioctx_pool_stat(ioctx.ioctx, &c_stat)
+	ret := C.rados_ioctx_pool_stat(ioctx.ioctx, &cStat)
 	if ret < 0 {
 		return PoolStat{}, getError(ret)
 	}
 	return PoolStat{
-		Num_bytes:                      uint64(c_stat.num_bytes),
+		Num_bytes:                      uint64(cStat.num_bytes),
-		Num_kb:                         uint64(c_stat.num_kb),
+		Num_kb:                         uint64(cStat.num_kb),
-		Num_objects:                    uint64(c_stat.num_objects),
+		Num_objects:                    uint64(cStat.num_objects),
-		Num_object_clones:              uint64(c_stat.num_object_clones),
+		Num_object_clones:              uint64(cStat.num_object_clones),
-		Num_object_copies:              uint64(c_stat.num_object_copies),
+		Num_object_copies:              uint64(cStat.num_object_copies),
-		Num_objects_missing_on_primary: uint64(c_stat.num_objects_missing_on_primary),
+		Num_objects_missing_on_primary: uint64(cStat.num_objects_missing_on_primary),
-		Num_objects_unfound:            uint64(c_stat.num_objects_unfound),
+		Num_objects_unfound:            uint64(cStat.num_objects_unfound),
-		Num_objects_degraded:           uint64(c_stat.num_objects_degraded),
+		Num_objects_degraded:           uint64(cStat.num_objects_degraded),
-		Num_rd:                         uint64(c_stat.num_rd),
+		Num_rd:                         uint64(cStat.num_rd),
-		Num_rd_kb:                      uint64(c_stat.num_rd_kb),
+		Num_rd_kb:                      uint64(cStat.num_rd_kb),
-		Num_wr:                         uint64(c_stat.num_wr),
+		Num_wr:                         uint64(cStat.num_wr),
-		Num_wr_kb:                      uint64(c_stat.num_wr_kb),
+		Num_wr_kb:                      uint64(cStat.num_wr_kb),
 	}, nil
 }
 
@@ -306,51 +306,51 @@ func (ioctx *IOContext) ListObjects(listFn ObjectListFunc) error {
 	defer func() { C.rados_nobjects_list_close(ctx) }()
 
 	for {
-		var c_entry *C.char
+		var cEntry *C.char
-		ret := C.rados_nobjects_list_next(ctx, &c_entry, nil, nil)
+		ret := C.rados_nobjects_list_next(ctx, &cEntry, nil, nil)
 		if ret == -C.ENOENT {
 			return nil
 		} else if ret < 0 {
 			return getError(ret)
 		}
-		listFn(C.GoString(c_entry))
+		listFn(C.GoString(cEntry))
 	}
 }
 
 // Stat returns the size of the object and its last modification time
 func (ioctx *IOContext) Stat(object string) (stat ObjectStat, err error) {
-	var c_psize C.uint64_t
+	var cPsize C.uint64_t
-	var c_pmtime C.time_t
+	var cPmtime C.time_t
-	c_object := C.CString(object)
+	cObject := C.CString(object)
-	defer C.free(unsafe.Pointer(c_object))
+	defer C.free(unsafe.Pointer(cObject))
 
 	ret := C.rados_stat(
 		ioctx.ioctx,
-		c_object,
+		cObject,
-		&c_psize,
+		&cPsize,
-		&c_pmtime)
+		&cPmtime)
 
 	if ret < 0 {
 		return ObjectStat{}, getError(ret)
 	}
 	return ObjectStat{
-		Size:    uint64(c_psize),
+		Size:    uint64(cPsize),
-		ModTime: time.Unix(int64(c_pmtime), 0),
+		ModTime: time.Unix(int64(cPmtime), 0),
 	}, nil
 }
 
 // GetXattr gets an xattr with key `name`, it returns the length of
 // the key read or an error if not successful
 func (ioctx *IOContext) GetXattr(object string, name string, data []byte) (int, error) {
-	c_object := C.CString(object)
+	cObject := C.CString(object)
-	c_name := C.CString(name)
+	cName := C.CString(name)
-	defer C.free(unsafe.Pointer(c_object))
+	defer C.free(unsafe.Pointer(cObject))
-	defer C.free(unsafe.Pointer(c_name))
+	defer C.free(unsafe.Pointer(cName))
 
 	ret := C.rados_getxattr(
 		ioctx.ioctx,
-		c_object,
+		cObject,
-		c_name,
+		cName,
 		(*C.char)(unsafe.Pointer(&data[0])),
 		(C.size_t)(len(data)))
 
@@ -362,15 +362,15 @@ func (ioctx *IOContext) GetXattr(object string, name string, data []byte) (int,
 
 // SetXattr sets an xattr for an object with key `name` with value as `data`
 func (ioctx *IOContext) SetXattr(object string, name string, data []byte) error {
-	c_object := C.CString(object)
+	cObject := C.CString(object)
-	c_name := C.CString(name)
+	cName := C.CString(name)
-	defer C.free(unsafe.Pointer(c_object))
+	defer C.free(unsafe.Pointer(cObject))
-	defer C.free(unsafe.Pointer(c_name))
+	defer C.free(unsafe.Pointer(cName))
 
 	ret := C.rados_setxattr(
 		ioctx.ioctx,
-		c_object,
+		cObject,
-		c_name,
+		cName,
 		(*C.char)(unsafe.Pointer(&data[0])),
 		(C.size_t)(len(data)))
 
@@ -380,82 +380,82 @@ func (ioctx *IOContext) SetXattr(object string, name string, data []byte) error
 // ListXattrs lists all the xattrs for an object. The xattrs are returned as a
 // mapping of string keys and byte-slice values.
 func (ioctx *IOContext) ListXattrs(oid string) (map[string][]byte, error) {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
 
 	var it C.rados_xattrs_iter_t
 
-	ret := C.rados_getxattrs(ioctx.ioctx, c_oid, &it)
+	ret := C.rados_getxattrs(ioctx.ioctx, coid, &it)
 	if ret < 0 {
 		return nil, getError(ret)
 	}
 	defer func() { C.rados_getxattrs_end(it) }()
 	m := make(map[string][]byte)
 	for {
-		var c_name, c_val *C.char
+		var cName, cVal *C.char
-		var c_len C.size_t
+		var cLen C.size_t
-		defer C.free(unsafe.Pointer(c_name))
+		defer C.free(unsafe.Pointer(cName))
-		defer C.free(unsafe.Pointer(c_val))
+		defer C.free(unsafe.Pointer(cVal))
 
-		ret := C.rados_getxattrs_next(it, &c_name, &c_val, &c_len)
+		ret := C.rados_getxattrs_next(it, &cName, &cVal, &cLen)
 		if ret < 0 {
 			return nil, getError(ret)
 		}
 		// rados api returns a null name,val & 0-length upon
 		// end of iteration
-		if c_name == nil {
+		if cName == nil {
 			return m, nil // stop iteration
 		}
-		m[C.GoString(c_name)] = C.GoBytes(unsafe.Pointer(c_val), (C.int)(c_len))
+		m[C.GoString(cName)] = C.GoBytes(unsafe.Pointer(cVal), (C.int)(cLen))
 	}
 }
 
 // RmXattr removes an xattr with key `name` from object `oid`
 func (ioctx *IOContext) RmXattr(oid string, name string) error {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	c_name := C.CString(name)
+	cName := C.CString(name)
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
-	defer C.free(unsafe.Pointer(c_name))
+	defer C.free(unsafe.Pointer(cName))
 
 	ret := C.rados_rmxattr(
 		ioctx.ioctx,
-		c_oid,
+		coid,
-		c_name)
+		cName)
 
 	return getError(ret)
 }
 
 // LockExclusive takes an exclusive lock on an object.
 func (ioctx *IOContext) LockExclusive(oid, name, cookie, desc string, duration time.Duration, flags *byte) (int, error) {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	c_name := C.CString(name)
+	cName := C.CString(name)
-	c_cookie := C.CString(cookie)
+	cCookie := C.CString(cookie)
-	c_desc := C.CString(desc)
+	cDesc := C.CString(desc)
 
-	var c_duration C.struct_timeval
+	var cDuration C.struct_timeval
 	if duration != 0 {
 		tv := syscall.NsecToTimeval(duration.Nanoseconds())
-		c_duration = C.struct_timeval{tv_sec: C.ceph_time_t(tv.Sec), tv_usec: C.ceph_suseconds_t(tv.Usec)}
+		cDuration = C.struct_timeval{tv_sec: C.ceph_time_t(tv.Sec), tv_usec: C.ceph_suseconds_t(tv.Usec)}
 	}
 
-	var c_flags C.uint8_t
+	var cFlags C.uint8_t
 	if flags != nil {
-		c_flags = C.uint8_t(*flags)
+		cFlags = C.uint8_t(*flags)
 	}
 
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
-	defer C.free(unsafe.Pointer(c_name))
+	defer C.free(unsafe.Pointer(cName))
-	defer C.free(unsafe.Pointer(c_cookie))
+	defer C.free(unsafe.Pointer(cCookie))
-	defer C.free(unsafe.Pointer(c_desc))
+	defer C.free(unsafe.Pointer(cDesc))
 
 	ret := C.rados_lock_exclusive(
 		ioctx.ioctx,
-		c_oid,
+		coid,
-		c_name,
+		cName,
-		c_cookie,
+		cCookie,
-		c_desc,
+		cDesc,
-		&c_duration,
+		&cDuration,
-		c_flags)
+		cFlags)
 
 	// 0 on success, negative error code on failure
 	// -EBUSY if the lock is already held by another (client, cookie) pair
@@ -475,38 +475,38 @@ func (ioctx *IOContext) LockExclusive(oid, name, cookie, desc string, duration t
 
 // LockShared takes a shared lock on an object.
 func (ioctx *IOContext) LockShared(oid, name, cookie, tag, desc string, duration time.Duration, flags *byte) (int, error) {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	c_name := C.CString(name)
+	cName := C.CString(name)
-	c_cookie := C.CString(cookie)
+	cCookie := C.CString(cookie)
-	c_tag := C.CString(tag)
+	cTag := C.CString(tag)
-	c_desc := C.CString(desc)
+	cDesc := C.CString(desc)
 
-	var c_duration C.struct_timeval
+	var cDuration C.struct_timeval
 	if duration != 0 {
 		tv := syscall.NsecToTimeval(duration.Nanoseconds())
-		c_duration = C.struct_timeval{tv_sec: C.ceph_time_t(tv.Sec), tv_usec: C.ceph_suseconds_t(tv.Usec)}
+		cDuration = C.struct_timeval{tv_sec: C.ceph_time_t(tv.Sec), tv_usec: C.ceph_suseconds_t(tv.Usec)}
 	}
 
-	var c_flags C.uint8_t
+	var cFlags C.uint8_t
 	if flags != nil {
-		c_flags = C.uint8_t(*flags)
+		cFlags = C.uint8_t(*flags)
 	}
 
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
-	defer C.free(unsafe.Pointer(c_name))
+	defer C.free(unsafe.Pointer(cName))
-	defer C.free(unsafe.Pointer(c_cookie))
+	defer C.free(unsafe.Pointer(cCookie))
-	defer C.free(unsafe.Pointer(c_tag))
+	defer C.free(unsafe.Pointer(cTag))
-	defer C.free(unsafe.Pointer(c_desc))
+	defer C.free(unsafe.Pointer(cDesc))
 
 	ret := C.rados_lock_shared(
 		ioctx.ioctx,
-		c_oid,
+		coid,
-		c_name,
+		cName,
-		c_cookie,
+		cCookie,
-		c_tag,
+		cTag,
-		c_desc,
+		cDesc,
-		&c_duration,
+		&cDuration,
-		c_flags)
+		cFlags)
 
 	// 0 on success, negative error code on failure
 	// -EBUSY if the lock is already held by another (client, cookie) pair
@@ -526,22 +526,22 @@ func (ioctx *IOContext) LockShared(oid, name, cookie, tag, desc string, duration
 
 // Unlock releases a shared or exclusive lock on an object.
 func (ioctx *IOContext) Unlock(oid, name, cookie string) (int, error) {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	c_name := C.CString(name)
+	cName := C.CString(name)
-	c_cookie := C.CString(cookie)
+	cCookie := C.CString(cookie)
 
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
-	defer C.free(unsafe.Pointer(c_name))
+	defer C.free(unsafe.Pointer(cName))
-	defer C.free(unsafe.Pointer(c_cookie))
+	defer C.free(unsafe.Pointer(cCookie))
 
 	// 0 on success, negative error code on failure
 	// -ENOENT if the lock is not held by the specified (client, cookie) pair
 
 	ret := C.rados_unlock(
 		ioctx.ioctx,
-		c_oid,
+		coid,
-		c_name,
+		cName,
-		c_cookie)
+		cCookie)
 
 	switch ret {
 	case 0:
@@ -559,40 +559,40 @@ func (ioctx *IOContext) Unlock(oid, name, cookie string) (int, error) {
 // out parameter.  If any of the provided buffers are too short, -ERANGE is
 // returned after these sizes are filled in.
 func (ioctx *IOContext) ListLockers(oid, name string) (*LockInfo, error) {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	c_name := C.CString(name)
+	cName := C.CString(name)
 
-	c_tag := (*C.char)(C.malloc(C.size_t(1024)))
+	cTag := (*C.char)(C.malloc(C.size_t(1024)))
-	c_clients := (*C.char)(C.malloc(C.size_t(1024)))
+	cClients := (*C.char)(C.malloc(C.size_t(1024)))
-	c_cookies := (*C.char)(C.malloc(C.size_t(1024)))
+	cCookies := (*C.char)(C.malloc(C.size_t(1024)))
-	c_addrs := (*C.char)(C.malloc(C.size_t(1024)))
+	cAddrs := (*C.char)(C.malloc(C.size_t(1024)))
 
-	var c_exclusive C.int
+	var cExclusive C.int
-	c_tag_len := C.size_t(1024)
+	cTagLen := C.size_t(1024)
-	c_clients_len := C.size_t(1024)
+	cClientsLen := C.size_t(1024)
-	c_cookies_len := C.size_t(1024)
+	cCookiesLen := C.size_t(1024)
-	c_addrs_len := C.size_t(1024)
+	cAddrsLen := C.size_t(1024)
 
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
-	defer C.free(unsafe.Pointer(c_name))
+	defer C.free(unsafe.Pointer(cName))
-	defer C.free(unsafe.Pointer(c_tag))
+	defer C.free(unsafe.Pointer(cTag))
-	defer C.free(unsafe.Pointer(c_clients))
+	defer C.free(unsafe.Pointer(cClients))
-	defer C.free(unsafe.Pointer(c_cookies))
+	defer C.free(unsafe.Pointer(cCookies))
-	defer C.free(unsafe.Pointer(c_addrs))
+	defer C.free(unsafe.Pointer(cAddrs))
 
 	ret := C.rados_list_lockers(
 		ioctx.ioctx,
-		c_oid,
+		coid,
-		c_name,
+		cName,
-		&c_exclusive,
+		&cExclusive,
-		c_tag,
+		cTag,
-		&c_tag_len,
+		&cTagLen,
-		c_clients,
+		cClients,
-		&c_clients_len,
+		&cClientsLen,
-		c_cookies,
+		cCookies,
-		&c_cookies_len,
+		&cCookiesLen,
-		c_addrs,
+		cAddrs,
-		&c_addrs_len)
+		&cAddrsLen)
 
 	splitCString := func(items *C.char, itemsLen C.size_t) []string {
 		currLen := 0
@@ -608,20 +608,20 @@ func (ioctx *IOContext) ListLockers(oid, name string) (*LockInfo, error) {
 	if ret < 0 {
 		return nil, radosError(ret)
 	}
-	return &LockInfo{int(ret), c_exclusive == 1, C.GoString(c_tag), splitCString(c_clients, c_clients_len), splitCString(c_cookies, c_cookies_len), splitCString(c_addrs, c_addrs_len)}, nil
+	return &LockInfo{int(ret), cExclusive == 1, C.GoString(cTag), splitCString(cClients, cClientsLen), splitCString(cCookies, cCookiesLen), splitCString(cAddrs, cAddrsLen)}, nil
 }
 
 // BreakLock releases a shared or exclusive lock on an object, which was taken by the specified client.
 func (ioctx *IOContext) BreakLock(oid, name, client, cookie string) (int, error) {
-	c_oid := C.CString(oid)
+	coid := C.CString(oid)
-	c_name := C.CString(name)
+	cName := C.CString(name)
-	c_client := C.CString(client)
+	cClient := C.CString(client)
-	c_cookie := C.CString(cookie)
+	cCookie := C.CString(cookie)
 
-	defer C.free(unsafe.Pointer(c_oid))
+	defer C.free(unsafe.Pointer(coid))
-	defer C.free(unsafe.Pointer(c_name))
+	defer C.free(unsafe.Pointer(cName))
-	defer C.free(unsafe.Pointer(c_client))
+	defer C.free(unsafe.Pointer(cClient))
-	defer C.free(unsafe.Pointer(c_cookie))
+	defer C.free(unsafe.Pointer(cCookie))
 
 	// 0 on success, negative error code on failure
 	// -ENOENT if the lock is not held by the specified (client, cookie) pair
@@ -629,10 +629,10 @@ func (ioctx *IOContext) BreakLock(oid, name, client, cookie string) (int, error)
 
 	ret := C.rados_break_lock(
 		ioctx.ioctx,
-		c_oid,
+		coid,
-		c_name,
+		cName,
-		c_client,
+		cClient,
-		c_cookie)
+		cCookie)
 
 	switch ret {
 	case 0:

vendor/github.com/ceph/go-ceph/rados/object_iter.go

@@ -50,14 +50,14 @@ func (iter *Iter) Seek(token IterToken) {
 //	return iter.Err()
 //
 func (iter *Iter) Next() bool {
-	var c_entry *C.char
+	var cEntry *C.char
-	var c_namespace *C.char
+	var cNamespace *C.char
-	if cerr := C.rados_nobjects_list_next(iter.ctx, &c_entry, nil, &c_namespace); cerr < 0 {
+	if cerr := C.rados_nobjects_list_next(iter.ctx, &cEntry, nil, &cNamespace); cerr < 0 {
 		iter.err = getError(cerr)
 		return false
 	}
-	iter.entry = C.GoString(c_entry)
+	iter.entry = C.GoString(cEntry)
-	iter.namespace = C.GoString(c_namespace)
+	iter.namespace = C.GoString(cNamespace)
 	return true
 }
 

vendor/github.com/ceph/go-ceph/rados/rados.go

@@ -55,9 +55,9 @@ const (
 // Version returns the major, minor, and patch components of the version of
 // the RADOS library linked against.
 func Version() (int, int, int) {
-	var c_major, c_minor, c_patch C.int
+	var cMajor, cMinor, cPatch C.int
-	C.rados_version(&c_major, &c_minor, &c_patch)
+	C.rados_version(&cMajor, &cMinor, &cPatch)
-	return int(c_major), int(c_minor), int(c_patch)
+	return int(cMajor), int(cMinor), int(cPatch)
 }
 
 func makeConn() *Conn {
@@ -85,22 +85,22 @@ func NewConn() (*Conn, error) {
 // NewConnWithUser creates a new connection object with a custom username.
 // It returns the connection and an error, if any.
 func NewConnWithUser(user string) (*Conn, error) {
-	c_user := C.CString(user)
+	cUser := C.CString(user)
-	defer C.free(unsafe.Pointer(c_user))
+	defer C.free(unsafe.Pointer(cUser))
-	return newConn(c_user)
+	return newConn(cUser)
 }
 
 // NewConnWithClusterAndUser creates a new connection object for a specific cluster and username.
 // It returns the connection and an error, if any.
 func NewConnWithClusterAndUser(clusterName string, userName string) (*Conn, error) {
-	c_cluster_name := C.CString(clusterName)
+	cClusterName := C.CString(clusterName)
-	defer C.free(unsafe.Pointer(c_cluster_name))
+	defer C.free(unsafe.Pointer(cClusterName))
 
-	c_name := C.CString(userName)
+	cName := C.CString(userName)
-	defer C.free(unsafe.Pointer(c_name))
+	defer C.free(unsafe.Pointer(cName))
 
 	conn := makeConn()
-	ret := C.rados_create2(&conn.cluster, c_cluster_name, c_name, 0)
+	ret := C.rados_create2(&conn.cluster, cClusterName, cName, 0)
 	if ret != 0 {
 		return nil, getError(ret)
 	}

vendor/github.com/ceph/go-ceph/rbd/encryption.go

@@ -0,0 +1,139 @@
+// +build !octopus,!nautilus
+
+package rbd
+
+// #cgo LDFLAGS: -lrbd
+// /* force XSI-complaint strerror_r() */
+// #define _POSIX_C_SOURCE 200112L
+// #undef _GNU_SOURCE
+// #include <errno.h>
+// #include <stdlib.h>
+// #include <rados/librados.h>
+// #include <rbd/librbd.h>
+import "C"
+
+import (
+	"unsafe"
+)
+
+// cEncryptionData contains the data needed by the encryption functions
+type cEncryptionData struct {
+	format   C.rbd_encryption_format_t
+	opts     C.rbd_encryption_options_t
+	optsSize C.size_t
+	free     func()
+}
+
+// EncryptionAlgorithm is the encryption algorithm
+type EncryptionAlgorithm C.rbd_encryption_algorithm_t
+
+// Possible values for EncryptionAlgorithm:
+// EncryptionAlgorithmAES128: AES 128bits
+// EncryptionAlgorithmAES256: AES 256bits
+const (
+	EncryptionAlgorithmAES128 = EncryptionAlgorithm(C.RBD_ENCRYPTION_ALGORITHM_AES128)
+	EncryptionAlgorithmAES256 = EncryptionAlgorithm(C.RBD_ENCRYPTION_ALGORITHM_AES256)
+)
+
+// EncryptionOptionsLUKS1 and EncryptionOptionsLUKS2 are identical
+// structures at the moment, just as they are in the librbd api.
+// The purpose behind creating different identical structures, is to facilitate
+// future modifications of one of the formats, while maintaining backwards
+// compatibility with the other.
+
+// EncryptionOptionsLUKS1 options required for LUKS v1
+type EncryptionOptionsLUKS1 struct {
+	Alg        EncryptionAlgorithm
+	Passphrase []byte
+}
+
+// EncryptionOptionsLUKS2 options required for LUKS v2
+type EncryptionOptionsLUKS2 struct {
+	Alg        EncryptionAlgorithm
+	Passphrase []byte
+}
+
+// EncryptionOptions interface is used to encapsulate the different encryption
+// formats options and enable converting them from go to C structures.
+type EncryptionOptions interface {
+	allocateEncryptionOptions() cEncryptionData
+}
+
+func (opts EncryptionOptionsLUKS1) allocateEncryptionOptions() cEncryptionData {
+	var cOpts C.rbd_encryption_luks1_format_options_t
+	var retData cEncryptionData
+	cOpts.alg = C.rbd_encryption_algorithm_t(opts.Alg)
+	//CBytes allocates memory which we'll free by calling cOptsFree()
+	cOpts.passphrase = (*C.char)(C.CBytes(opts.Passphrase))
+	cOpts.passphrase_size = C.size_t(len(opts.Passphrase))
+	retData.opts = C.rbd_encryption_options_t(&cOpts)
+	retData.optsSize = C.size_t(C.sizeof_rbd_encryption_luks1_format_options_t)
+	retData.free = func() { C.free(unsafe.Pointer(cOpts.passphrase)) }
+	retData.format = C.RBD_ENCRYPTION_FORMAT_LUKS1
+	return retData
+}
+
+func (opts EncryptionOptionsLUKS2) allocateEncryptionOptions() cEncryptionData {
+	var cOpts C.rbd_encryption_luks2_format_options_t
+	var retData cEncryptionData
+	cOpts.alg = C.rbd_encryption_algorithm_t(opts.Alg)
+	//CBytes allocates memory which we'll free by calling cOptsFree()
+	cOpts.passphrase = (*C.char)(C.CBytes(opts.Passphrase))
+	cOpts.passphrase_size = C.size_t(len(opts.Passphrase))
+	retData.opts = C.rbd_encryption_options_t(&cOpts)
+	retData.optsSize = C.size_t(C.sizeof_rbd_encryption_luks2_format_options_t)
+	retData.free = func() { C.free(unsafe.Pointer(cOpts.passphrase)) }
+	retData.format = C.RBD_ENCRYPTION_FORMAT_LUKS2
+	return retData
+}
+
+// EncryptionFormat creates an encryption format header
+//
+// Implements:
+//  int rbd_encryption_format(rbd_image_t image,
+//                            rbd_encryption_format_t format,
+//                            rbd_encryption_options_t opts,
+//                            size_t opts_size);
+//
+// To issue an IO against the image, you need to mount the image
+// with libvirt/qemu using the LUKS format, or make a call to
+// rbd_encryption_load().
+func (image *Image) EncryptionFormat(opts EncryptionOptions) error {
+	if image.image == nil {
+		return ErrImageNotOpen
+	}
+
+	encryptionOpts := opts.allocateEncryptionOptions()
+	defer encryptionOpts.free()
+
+	ret := C.rbd_encryption_format(
+		image.image,
+		encryptionOpts.format,
+		encryptionOpts.opts,
+		encryptionOpts.optsSize)
+
+	return getError(ret)
+}
+
+// EncryptionLoad enables IO on an open encrypted image
+//
+// Implements:
+//  int rbd_encryption_load(rbd_image_t image,
+//                          rbd_encryption_format_t format,
+//                          rbd_encryption_options_t opts,
+//                          size_t opts_size);
+func (image *Image) EncryptionLoad(opts EncryptionOptions) error {
+	if image.image == nil {
+		return ErrImageNotOpen
+	}
+
+	encryptionOpts := opts.allocateEncryptionOptions()
+	defer encryptionOpts.free()
+
+	ret := C.rbd_encryption_load(
+		image.image,
+		encryptionOpts.format,
+		encryptionOpts.opts,
+		encryptionOpts.optsSize)
+	return getError(ret)
+}

vendor/github.com/ceph/go-ceph/rbd/features.go

@@ -39,6 +39,10 @@ const (
 	// librbd
 	FeatureDataPool = uint64(C.RBD_FEATURE_DATA_POOL)
 
+	// FeatureOperations is the representation of RBD_FEATURE_OPERATIONS
+	// from librbd
+	FeatureOperations = uint64(C.RBD_FEATURE_OPERATIONS)
+
 	// RBD features, strings
 
 	// FeatureNameLayering is the representation of
@@ -73,6 +77,10 @@ const (
 	// RBD_FEATURE_NAME_DATA_POOL from librbd
 	FeatureNameDataPool = C.RBD_FEATURE_NAME_DATA_POOL
 
+	// FeatureNameOperations is the representation of
+	// RBD_FEATURE_NAME_OPERATIONS from librbd
+	FeatureNameOperations = C.RBD_FEATURE_NAME_OPERATIONS
+
 	// old names for backwards compatibility (unused?)
 
 	// RbdFeatureLayering deprecated alias for FeatureLayering
@@ -115,6 +123,7 @@ var (
 		FeatureNameDeepFlatten:   FeatureDeepFlatten,
 		FeatureNameJournaling:    FeatureJournaling,
 		FeatureNameDataPool:      FeatureDataPool,
+		FeatureNameOperations:    FeatureOperations,
 	}
 )
 

vendor/github.com/ceph/go-ceph/rbd/features_mimic.go

@@ -1,20 +0,0 @@
-// +build !luminous
-
-package rbd
-
-// #include <rbd/librbd.h>
-import "C"
-
-const (
-	// FeatureOperations is the representation of RBD_FEATURE_OPERATIONS
-	// from librbd
-	FeatureOperations = uint64(C.RBD_FEATURE_OPERATIONS)
-
-	// FeatureNameOperations is the representation of
-	// RBD_FEATURE_NAME_OPERATIONS from librbd
-	FeatureNameOperations = C.RBD_FEATURE_NAME_OPERATIONS
-)
-
-func init() {
-	featureNameToBit[FeatureNameOperations] = FeatureOperations
-}

vendor/github.com/ceph/go-ceph/rbd/mirror.go

@@ -50,6 +50,16 @@ func (m MirrorMode) String() string {
 // ImageMirrorMode is used to indicate the mirroring approach for an RBD image.
 type ImageMirrorMode int64
 
+// ImageMirrorModeFilter is a ImageMirrorMode or nil for no filtering
+type ImageMirrorModeFilter interface {
+	mode() ImageMirrorMode
+}
+
+// Mode returns the ImageMirrorMode
+func (imm ImageMirrorMode) mode() ImageMirrorMode {
+	return imm
+}
+
 const (
 	// ImageMirrorModeJournal uses journaling to propagate RBD images between
 	// ceph clusters.
@@ -71,12 +81,12 @@ func (imm ImageMirrorMode) String() string {
 	}
 }
 
-//  GetMirrorUUID returns a string naming the mirroring uuid for the pool
+// GetMirrorUUID returns a string naming the mirroring uuid for the pool
-//  associated with the ioctx.
+// associated with the ioctx.
 //
-//  Implements:
+// Implements:
-//  int rbd_mirror_uuid_get(rados_ioctx_t io_ctx,
+//  int rbd_mirror_uuid_get(rados_ioctx_t io_ctx, char *uuid, size_t
-//	                       char *uuid, size_t *max_len);
+//                          *max_len);
 func GetMirrorUUID(ioctx *rados.IOContext) (string, error) {
 	var (
 		err   error
@@ -626,6 +636,45 @@ type GlobalMirrorImageIDAndStatus struct {
 	Status GlobalMirrorImageStatus
 }
 
+// iterBufSize is intentionally not a constant. The unit tests alter
+// this value in order to get more code coverage w/o needing to create
+// very many images.
+var iterBufSize = 64
+
+// MirrorImageGlobalStatusList returns a slice of GlobalMirrorImageIDAndStatus.
+// If the length of the returned slice equals max, the next chunk of the list
+// can be obtained by setting start to the ID of the last item of the returned
+// slice. If max is 0 a slice of all items is returned.
+//
+// Implements:
+// int rbd_mirror_image_status_list(rados_ioctx_t p,
+//     const char *start_id, size_t max, char **image_ids,
+//     rbd_mirror_image_status_t *images, size_t *len)
+func MirrorImageGlobalStatusList(
+	ioctx *rados.IOContext, start string, max int) ([]GlobalMirrorImageIDAndStatus, error) {
+	var (
+		result   []GlobalMirrorImageIDAndStatus
+		fetchAll bool
+	)
+	if max <= 0 {
+		max = iterBufSize
+		fetchAll = true
+	}
+	chunk := make([]GlobalMirrorImageIDAndStatus, max)
+	for {
+		length, err := mirrorImageGlobalStatusList(ioctx, start, chunk)
+		if err != nil {
+			return nil, err
+		}
+		result = append(result, chunk[:length]...)
+		if !fetchAll || length < max {
+			break
+		}
+		start = chunk[length-1].ID
+	}
+	return result, nil
+}
+
 func mirrorImageGlobalStatusList(
 	ioctx *rados.IOContext, start string,
 	results []GlobalMirrorImageIDAndStatus) (int, error) {
@@ -645,26 +694,23 @@ func mirrorImageGlobalStatusList(
 		cephIoctx(ioctx),
 		cStart,
 		max,
-		(**C.char)(unsafe.Pointer(&ids[0])),
+		&ids[0],
-		(*C.rbd_mirror_image_global_status_t)(unsafe.Pointer(&images[0])),
+		&images[0],
 		&length)
-
+	if err := getError(ret); err != nil {
+		return 0, err
+	}
 	for i := 0; i < int(length); i++ {
 		results[i].ID = C.GoString(ids[i])
 		results[i].Status = newGlobalMirrorImageStatus(&images[0])
 	}
 	C.rbd_mirror_image_global_status_list_cleanup(
-		(**C.char)(unsafe.Pointer(&ids[0])),
+		&ids[0],
-		(*C.rbd_mirror_image_global_status_t)(unsafe.Pointer(&images[0])),
+		&images[0],
 		length)
 	return int(length), getError(ret)
 }
 
-// statusIterBufSize is intentionally not a constant. The unit tests alter
-// this value in order to get more code coverage w/o needing to create
-// very many images.
-var statusIterBufSize = 64
-
 // MirrorImageGlobalStatusIter provide methods for iterating over all
 // the GlobalMirrorImageIdAndStatus values in a pool.
 type MirrorImageGlobalStatusIter struct {
@@ -700,16 +746,14 @@ func (iter *MirrorImageGlobalStatusIter) Next() (*GlobalMirrorImageIDAndStatus,
 }
 
 // Close terminates iteration regardless if iteration was completed and
-// frees any associated resources.
+// frees any associated resources. (DEPRECATED)
-func (iter *MirrorImageGlobalStatusIter) Close() error {
+func (*MirrorImageGlobalStatusIter) Close() error {
-	iter.buf = nil
-	iter.lastID = ""
 	return nil
 }
 
 func (iter *MirrorImageGlobalStatusIter) fetch() error {
 	iter.buf = nil
-	items := make([]GlobalMirrorImageIDAndStatus, statusIterBufSize)
+	items := make([]GlobalMirrorImageIDAndStatus, iterBufSize)
 	n, err := mirrorImageGlobalStatusList(
 		iter.ioctx,
 		iter.lastID,
@@ -722,3 +766,145 @@ func (iter *MirrorImageGlobalStatusIter) fetch() error {
 	}
 	return nil
 }
+
+// MirrorImageInfoItem contains an ID string for a RBD image and that image's
+// ImageMirrorMode and MirrorImageInfo.
+type MirrorImageInfoItem struct {
+	ID   string
+	Mode ImageMirrorMode
+	Info MirrorImageInfo
+}
+
+// MirrorImageInfoList returns a slice of MirrorImageInfoItem. If the length of
+// the returned slice equals max, the next chunk of the list can be obtained by
+// setting start to the ID of the last item of the returned slice. The returned
+// items are filtered by the mirror mode specified with modeFilter. If max is 0
+// a slice of all items is returned.
+//
+// Implements:
+// int rbd_mirror_image_info_list(
+//     rados_ioctx_t p, rbd_mirror_image_mode_t *mode_filter,
+//     const char *start_id, size_t max, char **image_ids,
+//     rbd_mirror_image_mode_t *mode_entries,
+//     rbd_mirror_image_info_t *info_entries, size_t *num_entries)
+func MirrorImageInfoList(
+	ioctx *rados.IOContext, modeFilter ImageMirrorModeFilter, start string,
+	max int) ([]MirrorImageInfoItem, error) {
+	var (
+		result   []MirrorImageInfoItem
+		fetchAll bool
+	)
+	if max <= 0 {
+		max = iterBufSize
+		fetchAll = true
+	}
+	chunk := make([]MirrorImageInfoItem, max)
+	for {
+		length, err := mirrorImageInfoList(ioctx, start, modeFilter, chunk)
+		if err != nil {
+			return nil, err
+		}
+		result = append(result, chunk[:length]...)
+		if !fetchAll || length < max {
+			break
+		}
+		start = chunk[length-1].ID
+	}
+	return result, nil
+}
+
+func mirrorImageInfoList(ioctx *rados.IOContext, start string,
+	modeFilter ImageMirrorModeFilter, results []MirrorImageInfoItem) (int, error) {
+
+	cStart := C.CString(start)
+	defer C.free(unsafe.Pointer(cStart))
+
+	var (
+		max           = C.size_t(len(results))
+		length        = C.size_t(0)
+		ids           = make([]*C.char, len(results))
+		modes         = make([]C.rbd_mirror_image_mode_t, len(results))
+		infos         = make([]C.rbd_mirror_image_info_t, len(results))
+		modeFilterPtr *C.rbd_mirror_image_mode_t
+	)
+	if modeFilter != nil {
+		cMode := C.rbd_mirror_image_mode_t(modeFilter.mode())
+		modeFilterPtr = &cMode
+	}
+	ret := C.rbd_mirror_image_info_list(
+		cephIoctx(ioctx),
+		modeFilterPtr,
+		cStart,
+		max,
+		&ids[0],
+		&modes[0],
+		&infos[0],
+		&length,
+	)
+	if err := getError(ret); err != nil {
+		return 0, err
+	}
+	for i := 0; i < int(length); i++ {
+		results[i].ID = C.GoString(ids[i])
+		results[i].Mode = ImageMirrorMode(modes[i])
+		results[i].Info = convertMirrorImageInfo(&infos[i])
+	}
+	C.rbd_mirror_image_info_list_cleanup(
+		&ids[0],
+		&infos[0],
+		length)
+	return int(length), getError(ret)
+}
+
+// MirrorImageInfoIter provide methods for iterating over all
+// the MirrorImageInfoItem values in a pool.
+type MirrorImageInfoIter struct {
+	ioctx *rados.IOContext
+
+	modeFilter ImageMirrorModeFilter
+	buf        []MirrorImageInfoItem
+	lastID     string
+}
+
+// NewMirrorImageInfoIter creates a new iterator ready for use.
+func NewMirrorImageInfoIter(ioctx *rados.IOContext, modeFilter ImageMirrorModeFilter) *MirrorImageInfoIter {
+	return &MirrorImageInfoIter{
+		ioctx:      ioctx,
+		modeFilter: modeFilter,
+	}
+}
+
+// Next fetches one MirrorImageInfoItem value or a nil value if iteration is
+// exhausted. The error return will be non-nil if an underlying error fetching
+// more values occurred.
+func (iter *MirrorImageInfoIter) Next() (*MirrorImageInfoItem, error) {
+	if len(iter.buf) == 0 {
+		if err := iter.fetch(); err != nil {
+			return nil, err
+		}
+		if len(iter.buf) == 0 {
+			return nil, nil
+		}
+		iter.lastID = iter.buf[len(iter.buf)-1].ID
+	}
+	item := iter.buf[0]
+	iter.buf = iter.buf[1:]
+	return &item, nil
+}
+
+func (iter *MirrorImageInfoIter) fetch() error {
+	iter.buf = nil
+	items := make([]MirrorImageInfoItem, iterBufSize)
+	n, err := mirrorImageInfoList(
+		iter.ioctx,
+		iter.lastID,
+		iter.modeFilter,
+		items)
+	if err != nil {
+		return err
+	}
+	if n > 0 {
+		iter.buf = items[:n]
+	}
+	return nil
+}

vendor/github.com/ceph/go-ceph/rbd/options.go

@@ -46,6 +46,12 @@ const (
 	// ImageOptionDataPool is the representation of RBD_IMAGE_OPTION_DATA_POOL
 	// from librbd
 	ImageOptionDataPool = C.RBD_IMAGE_OPTION_DATA_POOL
+	// ImageOptionFlatten is the representation of RBD_IMAGE_OPTION_FLATTEN
+	// from librbd
+	ImageOptionFlatten = C.RBD_IMAGE_OPTION_FLATTEN
+	// ImageOptionCloneFormat is the representation of
+	// RBD_IMAGE_OPTION_CLONE_FORMAT from librbd
+	ImageOptionCloneFormat = C.RBD_IMAGE_OPTION_CLONE_FORMAT
 
 	// RbdImageOptionFormat deprecated alias for ImageOptionFormat
 	RbdImageOptionFormat = ImageOptionFormat

vendor/github.com/ceph/go-ceph/rbd/options_mimic.go

@@ -1,16 +0,0 @@
-// +build !luminous
-
-package rbd
-
-// #include <rbd/librbd.h>
-import "C"
-
-const (
-	// ImageOptionFlatten is the representation of RBD_IMAGE_OPTION_FLATTEN
-	// from librbd
-	ImageOptionFlatten = C.RBD_IMAGE_OPTION_FLATTEN
-
-	// ImageOptionCloneFormat is the representation of
-	// RBD_IMAGE_OPTION_CLONE_FORMAT from librbd
-	ImageOptionCloneFormat = C.RBD_IMAGE_OPTION_CLONE_FORMAT
-)

vendor/github.com/ceph/go-ceph/rbd/options_octopus.go

@@ -1,4 +1,4 @@
-// +build !luminous,!mimic,!nautilus
+// +build !nautilus
 
 package rbd
 

vendor/github.com/ceph/go-ceph/rbd/rbd_mimic.go

@@ -1,42 +0,0 @@
-// +build luminous mimic
-// +build !nautilus
-//
-// Ceph Nautilus includes rbd_list2() and marked rbd_list() deprecated.
-
-package rbd
-
-// #cgo LDFLAGS: -lrbd
-// #include <rados/librados.h>
-// #include <rbd/librbd.h>
-// #include <errno.h>
-import "C"
-
-import (
-	"unsafe"
-
-	"github.com/ceph/go-ceph/internal/cutil"
-	"github.com/ceph/go-ceph/internal/retry"
-	"github.com/ceph/go-ceph/rados"
-)
-
-// GetImageNames returns the list of current RBD images.
-func GetImageNames(ioctx *rados.IOContext) (names []string, err error) {
-	var (
-		buf   []byte
-		csize C.size_t
-	)
-	// from 4KiB to 32KiB
-	retry.WithSizes(4096, 1<<15, func(size int) retry.Hint {
-		csize = C.size_t(size)
-		buf = make([]byte, csize)
-		ret := C.rbd_list(cephIoctx(ioctx),
-			(*C.char)(unsafe.Pointer(&buf[0])), &csize)
-		err = getErrorIfNegative(ret)
-		return retry.Size(int(csize)).If(err == errRange)
-	})
-	if err != nil {
-		return nil, err
-	}
-	names = cutil.SplitSparseBuffer(buf[:csize])
-	return names, nil
-}

vendor/github.com/ceph/go-ceph/rbd/snapshot_mimic.go

@@ -1,88 +0,0 @@
-// +build luminous mimic
-// +build !nautilus
-//
-// Ceph Nautilus introduced rbd_get_parent() and deprecated rbd_get_parent_info().
-// Ceph Nautilus introduced rbd_list_children3() and deprecated rbd_list_children().
-
-package rbd
-
-// #cgo LDFLAGS: -lrbd
-// #include <rbd/librbd.h>
-// #include <errno.h>
-import "C"
-
-import (
-	"unsafe"
-
-	"github.com/ceph/go-ceph/internal/cutil"
-)
-
-// GetParentInfo looks for the parent of the image and stores the pool, name
-// and snapshot-name in the byte-arrays that are passed as arguments.
-//
-// Implements:
-//   int rbd_get_parent_info(rbd_image_t image, char *parent_pool_name,
-//                           size_t ppool_namelen, char *parent_name,
-//                           size_t pnamelen, char *parent_snap_name,
-//                           size_t psnap_namelen)
-func (image *Image) GetParentInfo(p_pool, p_name, p_snapname []byte) error {
-	if err := image.validate(imageIsOpen); err != nil {
-		return err
-	}
-
-	ret := C.rbd_get_parent_info(
-		image.image,
-		(*C.char)(unsafe.Pointer(&p_pool[0])),
-		(C.size_t)(len(p_pool)),
-		(*C.char)(unsafe.Pointer(&p_name[0])),
-		(C.size_t)(len(p_name)),
-		(*C.char)(unsafe.Pointer(&p_snapname[0])),
-		(C.size_t)(len(p_snapname)))
-	if ret == 0 {
-		return nil
-	} else {
-		return rbdError(ret)
-	}
-}
-
-// ListChildren returns arrays with the pools and names of the images that are
-// children of the given image. The index of the pools and images arrays can be
-// used to link the two items together.
-//
-// Implements:
-//   ssize_t rbd_list_children(rbd_image_t image, char *pools,
-//                             size_t *pools_len,
-//                             char *images, size_t *images_len);
-func (image *Image) ListChildren() (pools []string, images []string, err error) {
-	if err := image.validate(imageIsOpen); err != nil {
-		return nil, nil, err
-	}
-
-	var c_pools_len, c_images_len C.size_t
-
-	ret := C.rbd_list_children(image.image,
-		nil, &c_pools_len,
-		nil, &c_images_len)
-	if ret == 0 {
-		return nil, nil, nil
-	}
-	if ret < 0 && ret != -C.ERANGE {
-		return nil, nil, rbdError(ret)
-	}
-
-	pools_buf := make([]byte, c_pools_len)
-	images_buf := make([]byte, c_images_len)
-
-	ret = C.rbd_list_children(image.image,
-		(*C.char)(unsafe.Pointer(&pools_buf[0])),
-		&c_pools_len,
-		(*C.char)(unsafe.Pointer(&images_buf[0])),
-		&c_images_len)
-	if ret < 0 {
-		return nil, nil, rbdError(ret)
-	}
-
-	pools = cutil.SplitSparseBuffer(pools_buf[:c_pools_len])
-	images = cutil.SplitSparseBuffer(images_buf[:c_images_len])
-	return pools, images, nil
-}

vendor/github.com/ceph/go-ceph/rbd/watchers.go

@@ -1,7 +1,3 @@
-// +build !luminous
-//
-// Ceph Mimic is the first version that supports watchers through librbd.
-
 package rbd
 
 /*

vendor/github.com/cyphar/filepath-securejoin/.travis.yml

@@ -0,0 +1,19 @@
+# Copyright (C) 2017 SUSE LLC. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+language: go
+go:
+    - 1.7.x
+    - 1.8.x
+    - tip
+
+os:
+    - linux
+    - osx
+
+script:
+    - go test -cover -v ./...
+
+notifications:
+    email: false

vendor/github.com/cyphar/filepath-securejoin/LICENSE

@@ -0,0 +1,28 @@
+Copyright (C) 2014-2015 Docker Inc & Go Authors. All rights reserved.
+Copyright (C) 2017 SUSE LLC. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/cyphar/filepath-securejoin/README.md

@@ -0,0 +1,65 @@
+## `filepath-securejoin` ##
+
+[![Build Status](https://travis-ci.org/cyphar/filepath-securejoin.svg?branch=master)](https://travis-ci.org/cyphar/filepath-securejoin)
+
+An implementation of `SecureJoin`, a [candidate for inclusion in the Go
+standard library][go#20126]. The purpose of this function is to be a "secure"
+alternative to `filepath.Join`, and in particular it provides certain
+guarantees that are not provided by `filepath.Join`.
+
+This is the function prototype:
+
+```go
+func SecureJoin(root, unsafePath string) (string, error)
+```
+
+This library **guarantees** the following:
+
+* If no error is set, the resulting string **must** be a child path of
+  `SecureJoin` and will not contain any symlink path components (they will all
+  be expanded).
+
+* When expanding symlinks, all symlink path components **must** be resolved
+  relative to the provided root. In particular, this can be considered a
+  userspace implementation of how `chroot(2)` operates on file paths. Note that
+  these symlinks will **not** be expanded lexically (`filepath.Clean` is not
+  called on the input before processing).
+
+* Non-existant path components are unaffected by `SecureJoin` (similar to
+  `filepath.EvalSymlinks`'s semantics).
+
+* The returned path will always be `filepath.Clean`ed and thus not contain any
+  `..` components.
+
+A (trivial) implementation of this function on GNU/Linux systems could be done
+with the following (note that this requires root privileges and is far more
+opaque than the implementation in this library, and also requires that
+`readlink` is inside the `root` path):
+
+```go
+package securejoin
+
+import (
+	"os/exec"
+	"path/filepath"
+)
+
+func SecureJoin(root, unsafePath string) (string, error) {
+	unsafePath = string(filepath.Separator) + unsafePath
+	cmd := exec.Command("chroot", root,
+		"readlink", "--canonicalize-missing", "--no-newline", unsafePath)
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		return "", err
+	}
+	expanded := string(output)
+	return filepath.Join(root, expanded), nil
+}
+```
+
+[go#20126]: https://github.com/golang/go/issues/20126
+
+### License ###
+
+The license of this project is the same as Go, which is a BSD 3-clause license
+available in the `LICENSE` file.

vendor/github.com/cyphar/filepath-securejoin/VERSION

@@ -0,0 +1 @@
+0.2.2

vendor/github.com/cyphar/filepath-securejoin/join.go

@@ -0,0 +1,134 @@
+// Copyright (C) 2014-2015 Docker Inc & Go Authors. All rights reserved.
+// Copyright (C) 2017 SUSE LLC. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package securejoin is an implementation of the hopefully-soon-to-be-included
+// SecureJoin helper that is meant to be part of the "path/filepath" package.
+// The purpose of this project is to provide a PoC implementation to make the
+// SecureJoin proposal (https://github.com/golang/go/issues/20126) more
+// tangible.
+package securejoin
+
+import (
+	"bytes"
+	"os"
+	"path/filepath"
+	"strings"
+	"syscall"
+
+	"github.com/pkg/errors"
+)
+
+// ErrSymlinkLoop is returned by SecureJoinVFS when too many symlinks have been
+// evaluated in attempting to securely join the two given paths.
+var ErrSymlinkLoop = errors.Wrap(syscall.ELOOP, "secure join")
+
+// IsNotExist tells you if err is an error that implies that either the path
+// accessed does not exist (or path components don't exist). This is
+// effectively a more broad version of os.IsNotExist.
+func IsNotExist(err error) bool {
+	// If it's a bone-fide ENOENT just bail.
+	if os.IsNotExist(errors.Cause(err)) {
+		return true
+	}
+
+	// Check that it's not actually an ENOTDIR, which in some cases is a more
+	// convoluted case of ENOENT (usually involving weird paths).
+	var errno error
+	switch err := errors.Cause(err).(type) {
+	case *os.PathError:
+		errno = err.Err
+	case *os.LinkError:
+		errno = err.Err
+	case *os.SyscallError:
+		errno = err.Err
+	}
+	return errno == syscall.ENOTDIR || errno == syscall.ENOENT
+}
+
+// SecureJoinVFS joins the two given path components (similar to Join) except
+// that the returned path is guaranteed to be scoped inside the provided root
+// path (when evaluated). Any symbolic links in the path are evaluated with the
+// given root treated as the root of the filesystem, similar to a chroot. The
+// filesystem state is evaluated through the given VFS interface (if nil, the
+// standard os.* family of functions are used).
+//
+// Note that the guarantees provided by this function only apply if the path
+// components in the returned string are not modified (in other words are not
+// replaced with symlinks on the filesystem) after this function has returned.
+// Such a symlink race is necessarily out-of-scope of SecureJoin.
+func SecureJoinVFS(root, unsafePath string, vfs VFS) (string, error) {
+	// Use the os.* VFS implementation if none was specified.
+	if vfs == nil {
+		vfs = osVFS{}
+	}
+
+	var path bytes.Buffer
+	n := 0
+	for unsafePath != "" {
+		if n > 255 {
+			return "", ErrSymlinkLoop
+		}
+
+		// Next path component, p.
+		i := strings.IndexRune(unsafePath, filepath.Separator)
+		var p string
+		if i == -1 {
+			p, unsafePath = unsafePath, ""
+		} else {
+			p, unsafePath = unsafePath[:i], unsafePath[i+1:]
+		}
+
+		// Create a cleaned path, using the lexical semantics of /../a, to
+		// create a "scoped" path component which can safely be joined to fullP
+		// for evaluation. At this point, path.String() doesn't contain any
+		// symlink components.
+		cleanP := filepath.Clean(string(filepath.Separator) + path.String() + p)
+		if cleanP == string(filepath.Separator) {
+			path.Reset()
+			continue
+		}
+		fullP := filepath.Clean(root + cleanP)
+
+		// Figure out whether the path is a symlink.
+		fi, err := vfs.Lstat(fullP)
+		if err != nil && !IsNotExist(err) {
+			return "", err
+		}
+		// Treat non-existent path components the same as non-symlinks (we
+		// can't do any better here).
+		if IsNotExist(err) || fi.Mode()&os.ModeSymlink == 0 {
+			path.WriteString(p)
+			path.WriteRune(filepath.Separator)
+			continue
+		}
+
+		// Only increment when we actually dereference a link.
+		n++
+
+		// It's a symlink, expand it by prepending it to the yet-unparsed path.
+		dest, err := vfs.Readlink(fullP)
+		if err != nil {
+			return "", err
+		}
+		// Absolute symlinks reset any work we've already done.
+		if filepath.IsAbs(dest) {
+			path.Reset()
+		}
+		unsafePath = dest + string(filepath.Separator) + unsafePath
+	}
+
+	// We have to clean path.String() here because it may contain '..'
+	// components that are entirely lexical, but would be misleading otherwise.
+	// And finally do a final clean to ensure that root is also lexically
+	// clean.
+	fullP := filepath.Clean(string(filepath.Separator) + path.String())
+	return filepath.Clean(root + fullP), nil
+}
+
+// SecureJoin is a wrapper around SecureJoinVFS that just uses the os.* library
+// of functions as the VFS. If in doubt, use this function over SecureJoinVFS.
+func SecureJoin(root, unsafePath string) (string, error) {
+	return SecureJoinVFS(root, unsafePath, nil)
+}

vendor/github.com/cyphar/filepath-securejoin/vendor.conf

@@ -0,0 +1 @@
+github.com/pkg/errors v0.8.0

vendor/github.com/cyphar/filepath-securejoin/vfs.go

@@ -0,0 +1,41 @@
+// Copyright (C) 2017 SUSE LLC. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package securejoin
+
+import "os"
+
+// In future this should be moved into a separate package, because now there
+// are several projects (umoci and go-mtree) that are using this sort of
+// interface.
+
+// VFS is the minimal interface necessary to use SecureJoinVFS. A nil VFS is
+// equivalent to using the standard os.* family of functions. This is mainly
+// used for the purposes of mock testing, but also can be used to otherwise use
+// SecureJoin with VFS-like system.
+type VFS interface {
+	// Lstat returns a FileInfo describing the named file. If the file is a
+	// symbolic link, the returned FileInfo describes the symbolic link. Lstat
+	// makes no attempt to follow the link. These semantics are identical to
+	// os.Lstat.
+	Lstat(name string) (os.FileInfo, error)
+
+	// Readlink returns the destination of the named symbolic link. These
+	// semantics are identical to os.Readlink.
+	Readlink(name string) (string, error)
+}
+
+// osVFS is the "nil" VFS, in that it just passes everything through to the os
+// module.
+type osVFS struct{}
+
+// Lstat returns a FileInfo describing the named file. If the file is a
+// symbolic link, the returned FileInfo describes the symbolic link. Lstat
+// makes no attempt to follow the link. These semantics are identical to
+// os.Lstat.
+func (o osVFS) Lstat(name string) (os.FileInfo, error) { return os.Lstat(name) }
+
+// Readlink returns the destination of the named symbolic link. These
+// semantics are identical to os.Readlink.
+func (o osVFS) Readlink(name string) (string, error) { return os.Readlink(name) }

vendor/github.com/felixge/httpsnoop/.travis.yml

@@ -0,0 +1,6 @@
+language: go
+
+go:
+  - 1.6
+  - 1.7
+  - 1.8

vendor/github.com/felixge/httpsnoop/LICENSE.txt

@@ -0,0 +1,19 @@
+Copyright (c) 2016 Felix Geisendörfer (felix@debuggable.com)
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.

vendor/github.com/felixge/httpsnoop/Makefile

@@ -0,0 +1,10 @@
+.PHONY: ci generate clean
+
+ci: clean generate
+	go test -v ./...
+
+generate:
+	go generate .
+
+clean:
+	rm -rf *_generated*.go

vendor/github.com/felixge/httpsnoop/README.md

@@ -0,0 +1,94 @@
+# httpsnoop
+
+Package httpsnoop provides an easy way to capture http related metrics (i.e.
+response time, bytes written, and http status code) from your application's
+http.Handlers.
+
+Doing this requires non-trivial wrapping of the http.ResponseWriter interface,
+which is also exposed for users interested in a more low-level API.
+
+[![GoDoc](https://godoc.org/github.com/felixge/httpsnoop?status.svg)](https://godoc.org/github.com/felixge/httpsnoop)
+[![Build Status](https://travis-ci.org/felixge/httpsnoop.svg?branch=master)](https://travis-ci.org/felixge/httpsnoop)
+
+## Usage Example
+
+```go
+// myH is your app's http handler, perhaps a http.ServeMux or similar.
+var myH http.Handler
+// wrappedH wraps myH in order to log every request.
+wrappedH := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+	m := httpsnoop.CaptureMetrics(myH, w, r)
+	log.Printf(
+		"%s %s (code=%d dt=%s written=%d)",
+		r.Method,
+		r.URL,
+		m.Code,
+		m.Duration,
+		m.Written,
+	)
+})
+http.ListenAndServe(":8080", wrappedH)
+```
+
+## Why this package exists
+
+Instrumenting an application's http.Handler is surprisingly difficult.
+
+However if you google for e.g. "capture ResponseWriter status code" you'll find
+lots of advise and code examples that suggest it to be a fairly trivial
+undertaking. Unfortunately everything I've seen so far has a high chance of
+breaking your application.
+
+The main problem is that a `http.ResponseWriter` often implements additional
+interfaces such as `http.Flusher`, `http.CloseNotifier`, `http.Hijacker`, `http.Pusher`, and
+`io.ReaderFrom`. So the naive approach of just wrapping `http.ResponseWriter`
+in your own struct that also implements the `http.ResponseWriter` interface
+will hide the additional interfaces mentioned above. This has a high change of
+introducing subtle bugs into any non-trivial application.
+
+Another approach I've seen people take is to return a struct that implements
+all of the interfaces above. However, that's also problematic, because it's
+difficult to fake some of these interfaces behaviors when the underlying
+`http.ResponseWriter` doesn't have an implementation. It's also dangerous,
+because an application may choose to operate differently, merely because it
+detects the presence of these additional interfaces.
+
+This package solves this problem by checking which additional interfaces a
+`http.ResponseWriter` implements, returning a wrapped version implementing the
+exact same set of interfaces.
+
+Additionally this package properly handles edge cases such as `WriteHeader` not
+being called, or called more than once, as well as concurrent calls to
+`http.ResponseWriter` methods, and even calls happening after the wrapped
+`ServeHTTP` has already returned.
+
+Unfortunately this package is not perfect either. It's possible that it is
+still missing some interfaces provided by the go core (let me know if you find
+one), and it won't work for applications adding their own interfaces into the
+mix.
+
+However, hopefully the explanation above has sufficiently scared you of rolling
+your own solution to this problem. httpsnoop may still break your application,
+but at least it tries to avoid it as much as possible.
+
+Anyway, the real problem here is that smuggling additional interfaces inside
+`http.ResponseWriter` is a problematic design choice, but it probably goes as
+deep as the Go language specification itself. But that's okay, I still prefer
+Go over the alternatives ;).
+
+## Performance
+
+```
+BenchmarkBaseline-8      	   20000	     94912 ns/op
+BenchmarkCaptureMetrics-8	   20000	     95461 ns/op
+```
+
+As you can see, using `CaptureMetrics` on a vanilla http.Handler introduces an
+overhead of ~500 ns per http request on my machine. However, the margin of
+error appears to be larger than that, therefor it should be reasonable to
+assume that the overhead introduced by `CaptureMetrics` is absolutely
+negligible.
+
+## License
+
+MIT

vendor/github.com/felixge/httpsnoop/capture_metrics.go

@@ -0,0 +1,84 @@
+package httpsnoop
+
+import (
+	"io"
+	"net/http"
+	"sync"
+	"time"
+)
+
+// Metrics holds metrics captured from CaptureMetrics.
+type Metrics struct {
+	// Code is the first http response code passed to the WriteHeader func of
+	// the ResponseWriter. If no such call is made, a default code of 200 is
+	// assumed instead.
+	Code int
+	// Duration is the time it took to execute the handler.
+	Duration time.Duration
+	// Written is the number of bytes successfully written by the Write or
+	// ReadFrom function of the ResponseWriter. ResponseWriters may also write
+	// data to their underlaying connection directly (e.g. headers), but those
+	// are not tracked. Therefor the number of Written bytes will usually match
+	// the size of the response body.
+	Written int64
+}
+
+// CaptureMetrics wraps the given hnd, executes it with the given w and r, and
+// returns the metrics it captured from it.
+func CaptureMetrics(hnd http.Handler, w http.ResponseWriter, r *http.Request) Metrics {
+	return CaptureMetricsFn(w, func(ww http.ResponseWriter) {
+		hnd.ServeHTTP(ww, r)
+	})
+}
+
+// CaptureMetricsFn wraps w and calls fn with the wrapped w and returns the
+// resulting metrics. This is very similar to CaptureMetrics (which is just
+// sugar on top of this func), but is a more usable interface if your
+// application doesn't use the Go http.Handler interface.
+func CaptureMetricsFn(w http.ResponseWriter, fn func(http.ResponseWriter)) Metrics {
+	var (
+		start         = time.Now()
+		m             = Metrics{Code: http.StatusOK}
+		headerWritten bool
+		lock          sync.Mutex
+		hooks         = Hooks{
+			WriteHeader: func(next WriteHeaderFunc) WriteHeaderFunc {
+				return func(code int) {
+					next(code)
+					lock.Lock()
+					defer lock.Unlock()
+					if !headerWritten {
+						m.Code = code
+						headerWritten = true
+					}
+				}
+			},
+
+			Write: func(next WriteFunc) WriteFunc {
+				return func(p []byte) (int, error) {
+					n, err := next(p)
+					lock.Lock()
+					defer lock.Unlock()
+					m.Written += int64(n)
+					headerWritten = true
+					return n, err
+				}
+			},
+
+			ReadFrom: func(next ReadFromFunc) ReadFromFunc {
+				return func(src io.Reader) (int64, error) {
+					n, err := next(src)
+					lock.Lock()
+					defer lock.Unlock()
+					headerWritten = true
+					m.Written += n
+					return n, err
+				}
+			},
+		}
+	)
+
+	fn(Wrap(w, hooks))
+	m.Duration = time.Since(start)
+	return m
+}

vendor/github.com/felixge/httpsnoop/docs.go

@@ -0,0 +1,10 @@
+// Package httpsnoop provides an easy way to capture http related metrics (i.e.
+// response time, bytes written, and http status code) from your application's
+// http.Handlers.
+//
+// Doing this requires non-trivial wrapping of the http.ResponseWriter
+// interface, which is also exposed for users interested in a more low-level
+// API.
+package httpsnoop
+
+//go:generate go run codegen/main.go

vendor/github.com/felixge/httpsnoop/go.mod

@@ -0,0 +1,3 @@
+module github.com/felixge/httpsnoop
+
+go 1.13

vendor/github.com/felixge/httpsnoop/wrap_generated_gteq_1.8.go

@@ -0,0 +1,385 @@
+// +build go1.8
+// Code generated by "httpsnoop/codegen"; DO NOT EDIT
+
+package httpsnoop
+
+import (
+	"bufio"
+	"io"
+	"net"
+	"net/http"
+)
+
+// HeaderFunc is part of the http.ResponseWriter interface.
+type HeaderFunc func() http.Header
+
+// WriteHeaderFunc is part of the http.ResponseWriter interface.
+type WriteHeaderFunc func(code int)
+
+// WriteFunc is part of the http.ResponseWriter interface.
+type WriteFunc func(b []byte) (int, error)
+
+// FlushFunc is part of the http.Flusher interface.
+type FlushFunc func()
+
+// CloseNotifyFunc is part of the http.CloseNotifier interface.
+type CloseNotifyFunc func() <-chan bool
+
+// HijackFunc is part of the http.Hijacker interface.
+type HijackFunc func() (net.Conn, *bufio.ReadWriter, error)
+
+// ReadFromFunc is part of the io.ReaderFrom interface.
+type ReadFromFunc func(src io.Reader) (int64, error)
+
+// PushFunc is part of the http.Pusher interface.
+type PushFunc func(target string, opts *http.PushOptions) error
+
+// Hooks defines a set of method interceptors for methods included in
+// http.ResponseWriter as well as some others. You can think of them as
+// middleware for the function calls they target. See Wrap for more details.
+type Hooks struct {
+	Header      func(HeaderFunc) HeaderFunc
+	WriteHeader func(WriteHeaderFunc) WriteHeaderFunc
+	Write       func(WriteFunc) WriteFunc
+	Flush       func(FlushFunc) FlushFunc
+	CloseNotify func(CloseNotifyFunc) CloseNotifyFunc
+	Hijack      func(HijackFunc) HijackFunc
+	ReadFrom    func(ReadFromFunc) ReadFromFunc
+	Push        func(PushFunc) PushFunc
+}
+
+// Wrap returns a wrapped version of w that provides the exact same interface
+// as w. Specifically if w implements any combination of:
+//
+// - http.Flusher
+// - http.CloseNotifier
+// - http.Hijacker
+// - io.ReaderFrom
+// - http.Pusher
+//
+// The wrapped version will implement the exact same combination. If no hooks
+// are set, the wrapped version also behaves exactly as w. Hooks targeting
+// methods not supported by w are ignored. Any other hooks will intercept the
+// method they target and may modify the call's arguments and/or return values.
+// The CaptureMetrics implementation serves as a working example for how the
+// hooks can be used.
+func Wrap(w http.ResponseWriter, hooks Hooks) http.ResponseWriter {
+	rw := &rw{w: w, h: hooks}
+	_, i0 := w.(http.Flusher)
+	_, i1 := w.(http.CloseNotifier)
+	_, i2 := w.(http.Hijacker)
+	_, i3 := w.(io.ReaderFrom)
+	_, i4 := w.(http.Pusher)
+	switch {
+	// combination 1/32
+	case !i0 && !i1 && !i2 && !i3 && !i4:
+		return struct {
+			http.ResponseWriter
+		}{rw}
+	// combination 2/32
+	case !i0 && !i1 && !i2 && !i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.Pusher
+		}{rw, rw}
+	// combination 3/32
+	case !i0 && !i1 && !i2 && i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			io.ReaderFrom
+		}{rw, rw}
+	// combination 4/32
+	case !i0 && !i1 && !i2 && i3 && i4:
+		return struct {
+			http.ResponseWriter
+			io.ReaderFrom
+			http.Pusher
+		}{rw, rw, rw}
+	// combination 5/32
+	case !i0 && !i1 && i2 && !i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.Hijacker
+		}{rw, rw}
+	// combination 6/32
+	case !i0 && !i1 && i2 && !i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.Hijacker
+			http.Pusher
+		}{rw, rw, rw}
+	// combination 7/32
+	case !i0 && !i1 && i2 && i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.Hijacker
+			io.ReaderFrom
+		}{rw, rw, rw}
+	// combination 8/32
+	case !i0 && !i1 && i2 && i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.Hijacker
+			io.ReaderFrom
+			http.Pusher
+		}{rw, rw, rw, rw}
+	// combination 9/32
+	case !i0 && i1 && !i2 && !i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.CloseNotifier
+		}{rw, rw}
+	// combination 10/32
+	case !i0 && i1 && !i2 && !i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.CloseNotifier
+			http.Pusher
+		}{rw, rw, rw}
+	// combination 11/32
+	case !i0 && i1 && !i2 && i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.CloseNotifier
+			io.ReaderFrom
+		}{rw, rw, rw}
+	// combination 12/32
+	case !i0 && i1 && !i2 && i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.CloseNotifier
+			io.ReaderFrom
+			http.Pusher
+		}{rw, rw, rw, rw}
+	// combination 13/32
+	case !i0 && i1 && i2 && !i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.CloseNotifier
+			http.Hijacker
+		}{rw, rw, rw}
+	// combination 14/32
+	case !i0 && i1 && i2 && !i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.CloseNotifier
+			http.Hijacker
+			http.Pusher
+		}{rw, rw, rw, rw}
+	// combination 15/32
+	case !i0 && i1 && i2 && i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.CloseNotifier
+			http.Hijacker
+			io.ReaderFrom
+		}{rw, rw, rw, rw}
+	// combination 16/32
+	case !i0 && i1 && i2 && i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.CloseNotifier
+			http.Hijacker
+			io.ReaderFrom
+			http.Pusher
+		}{rw, rw, rw, rw, rw}
+	// combination 17/32
+	case i0 && !i1 && !i2 && !i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+		}{rw, rw}
+	// combination 18/32
+	case i0 && !i1 && !i2 && !i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.Pusher
+		}{rw, rw, rw}
+	// combination 19/32
+	case i0 && !i1 && !i2 && i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			io.ReaderFrom
+		}{rw, rw, rw}
+	// combination 20/32
+	case i0 && !i1 && !i2 && i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			io.ReaderFrom
+			http.Pusher
+		}{rw, rw, rw, rw}
+	// combination 21/32
+	case i0 && !i1 && i2 && !i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.Hijacker
+		}{rw, rw, rw}
+	// combination 22/32
+	case i0 && !i1 && i2 && !i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.Hijacker
+			http.Pusher
+		}{rw, rw, rw, rw}
+	// combination 23/32
+	case i0 && !i1 && i2 && i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.Hijacker
+			io.ReaderFrom
+		}{rw, rw, rw, rw}
+	// combination 24/32
+	case i0 && !i1 && i2 && i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.Hijacker
+			io.ReaderFrom
+			http.Pusher
+		}{rw, rw, rw, rw, rw}
+	// combination 25/32
+	case i0 && i1 && !i2 && !i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.CloseNotifier
+		}{rw, rw, rw}
+	// combination 26/32
+	case i0 && i1 && !i2 && !i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.CloseNotifier
+			http.Pusher
+		}{rw, rw, rw, rw}
+	// combination 27/32
+	case i0 && i1 && !i2 && i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.CloseNotifier
+			io.ReaderFrom
+		}{rw, rw, rw, rw}
+	// combination 28/32
+	case i0 && i1 && !i2 && i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.CloseNotifier
+			io.ReaderFrom
+			http.Pusher
+		}{rw, rw, rw, rw, rw}
+	// combination 29/32
+	case i0 && i1 && i2 && !i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.CloseNotifier
+			http.Hijacker
+		}{rw, rw, rw, rw}
+	// combination 30/32
+	case i0 && i1 && i2 && !i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.CloseNotifier
+			http.Hijacker
+			http.Pusher
+		}{rw, rw, rw, rw, rw}
+	// combination 31/32
+	case i0 && i1 && i2 && i3 && !i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.CloseNotifier
+			http.Hijacker
+			io.ReaderFrom
+		}{rw, rw, rw, rw, rw}
+	// combination 32/32
+	case i0 && i1 && i2 && i3 && i4:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.CloseNotifier
+			http.Hijacker
+			io.ReaderFrom
+			http.Pusher
+		}{rw, rw, rw, rw, rw, rw}
+	}
+	panic("unreachable")
+}
+
+type rw struct {
+	w http.ResponseWriter
+	h Hooks
+}
+
+func (w *rw) Header() http.Header {
+	f := w.w.(http.ResponseWriter).Header
+	if w.h.Header != nil {
+		f = w.h.Header(f)
+	}
+	return f()
+}
+
+func (w *rw) WriteHeader(code int) {
+	f := w.w.(http.ResponseWriter).WriteHeader
+	if w.h.WriteHeader != nil {
+		f = w.h.WriteHeader(f)
+	}
+	f(code)
+}
+
+func (w *rw) Write(b []byte) (int, error) {
+	f := w.w.(http.ResponseWriter).Write
+	if w.h.Write != nil {
+		f = w.h.Write(f)
+	}
+	return f(b)
+}
+
+func (w *rw) Flush() {
+	f := w.w.(http.Flusher).Flush
+	if w.h.Flush != nil {
+		f = w.h.Flush(f)
+	}
+	f()
+}
+
+func (w *rw) CloseNotify() <-chan bool {
+	f := w.w.(http.CloseNotifier).CloseNotify
+	if w.h.CloseNotify != nil {
+		f = w.h.CloseNotify(f)
+	}
+	return f()
+}
+
+func (w *rw) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+	f := w.w.(http.Hijacker).Hijack
+	if w.h.Hijack != nil {
+		f = w.h.Hijack(f)
+	}
+	return f()
+}
+
+func (w *rw) ReadFrom(src io.Reader) (int64, error) {
+	f := w.w.(io.ReaderFrom).ReadFrom
+	if w.h.ReadFrom != nil {
+		f = w.h.ReadFrom(f)
+	}
+	return f(src)
+}
+
+func (w *rw) Push(target string, opts *http.PushOptions) error {
+	f := w.w.(http.Pusher).Push
+	if w.h.Push != nil {
+		f = w.h.Push(f)
+	}
+	return f(target, opts)
+}

vendor/github.com/felixge/httpsnoop/wrap_generated_lt_1.8.go

@@ -0,0 +1,243 @@
+// +build !go1.8
+// Code generated by "httpsnoop/codegen"; DO NOT EDIT
+
+package httpsnoop
+
+import (
+	"bufio"
+	"io"
+	"net"
+	"net/http"
+)
+
+// HeaderFunc is part of the http.ResponseWriter interface.
+type HeaderFunc func() http.Header
+
+// WriteHeaderFunc is part of the http.ResponseWriter interface.
+type WriteHeaderFunc func(code int)
+
+// WriteFunc is part of the http.ResponseWriter interface.
+type WriteFunc func(b []byte) (int, error)
+
+// FlushFunc is part of the http.Flusher interface.
+type FlushFunc func()
+
+// CloseNotifyFunc is part of the http.CloseNotifier interface.
+type CloseNotifyFunc func() <-chan bool
+
+// HijackFunc is part of the http.Hijacker interface.
+type HijackFunc func() (net.Conn, *bufio.ReadWriter, error)
+
+// ReadFromFunc is part of the io.ReaderFrom interface.
+type ReadFromFunc func(src io.Reader) (int64, error)
+
+// Hooks defines a set of method interceptors for methods included in
+// http.ResponseWriter as well as some others. You can think of them as
+// middleware for the function calls they target. See Wrap for more details.
+type Hooks struct {
+	Header      func(HeaderFunc) HeaderFunc
+	WriteHeader func(WriteHeaderFunc) WriteHeaderFunc
+	Write       func(WriteFunc) WriteFunc
+	Flush       func(FlushFunc) FlushFunc
+	CloseNotify func(CloseNotifyFunc) CloseNotifyFunc
+	Hijack      func(HijackFunc) HijackFunc
+	ReadFrom    func(ReadFromFunc) ReadFromFunc
+}
+
+// Wrap returns a wrapped version of w that provides the exact same interface
+// as w. Specifically if w implements any combination of:
+//
+// - http.Flusher
+// - http.CloseNotifier
+// - http.Hijacker
+// - io.ReaderFrom
+//
+// The wrapped version will implement the exact same combination. If no hooks
+// are set, the wrapped version also behaves exactly as w. Hooks targeting
+// methods not supported by w are ignored. Any other hooks will intercept the
+// method they target and may modify the call's arguments and/or return values.
+// The CaptureMetrics implementation serves as a working example for how the
+// hooks can be used.
+func Wrap(w http.ResponseWriter, hooks Hooks) http.ResponseWriter {
+	rw := &rw{w: w, h: hooks}
+	_, i0 := w.(http.Flusher)
+	_, i1 := w.(http.CloseNotifier)
+	_, i2 := w.(http.Hijacker)
+	_, i3 := w.(io.ReaderFrom)
+	switch {
+	// combination 1/16
+	case !i0 && !i1 && !i2 && !i3:
+		return struct {
+			http.ResponseWriter
+		}{rw}
+	// combination 2/16
+	case !i0 && !i1 && !i2 && i3:
+		return struct {
+			http.ResponseWriter
+			io.ReaderFrom
+		}{rw, rw}
+	// combination 3/16
+	case !i0 && !i1 && i2 && !i3:
+		return struct {
+			http.ResponseWriter
+			http.Hijacker
+		}{rw, rw}
+	// combination 4/16
+	case !i0 && !i1 && i2 && i3:
+		return struct {
+			http.ResponseWriter
+			http.Hijacker
+			io.ReaderFrom
+		}{rw, rw, rw}
+	// combination 5/16
+	case !i0 && i1 && !i2 && !i3:
+		return struct {
+			http.ResponseWriter
+			http.CloseNotifier
+		}{rw, rw}
+	// combination 6/16
+	case !i0 && i1 && !i2 && i3:
+		return struct {
+			http.ResponseWriter
+			http.CloseNotifier
+			io.ReaderFrom
+		}{rw, rw, rw}
+	// combination 7/16
+	case !i0 && i1 && i2 && !i3:
+		return struct {
+			http.ResponseWriter
+			http.CloseNotifier
+			http.Hijacker
+		}{rw, rw, rw}
+	// combination 8/16
+	case !i0 && i1 && i2 && i3:
+		return struct {
+			http.ResponseWriter
+			http.CloseNotifier
+			http.Hijacker
+			io.ReaderFrom
+		}{rw, rw, rw, rw}
+	// combination 9/16
+	case i0 && !i1 && !i2 && !i3:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+		}{rw, rw}
+	// combination 10/16
+	case i0 && !i1 && !i2 && i3:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			io.ReaderFrom
+		}{rw, rw, rw}
+	// combination 11/16
+	case i0 && !i1 && i2 && !i3:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.Hijacker
+		}{rw, rw, rw}
+	// combination 12/16
+	case i0 && !i1 && i2 && i3:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.Hijacker
+			io.ReaderFrom
+		}{rw, rw, rw, rw}
+	// combination 13/16
+	case i0 && i1 && !i2 && !i3:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.CloseNotifier
+		}{rw, rw, rw}
+	// combination 14/16
+	case i0 && i1 && !i2 && i3:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.CloseNotifier
+			io.ReaderFrom
+		}{rw, rw, rw, rw}
+	// combination 15/16
+	case i0 && i1 && i2 && !i3:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.CloseNotifier
+			http.Hijacker
+		}{rw, rw, rw, rw}
+	// combination 16/16
+	case i0 && i1 && i2 && i3:
+		return struct {
+			http.ResponseWriter
+			http.Flusher
+			http.CloseNotifier
+			http.Hijacker
+			io.ReaderFrom
+		}{rw, rw, rw, rw, rw}
+	}
+	panic("unreachable")
+}
+
+type rw struct {
+	w http.ResponseWriter
+	h Hooks
+}
+
+func (w *rw) Header() http.Header {
+	f := w.w.(http.ResponseWriter).Header
+	if w.h.Header != nil {
+		f = w.h.Header(f)
+	}
+	return f()
+}
+
+func (w *rw) WriteHeader(code int) {
+	f := w.w.(http.ResponseWriter).WriteHeader
+	if w.h.WriteHeader != nil {
+		f = w.h.WriteHeader(f)
+	}
+	f(code)
+}
+
+func (w *rw) Write(b []byte) (int, error) {
+	f := w.w.(http.ResponseWriter).Write
+	if w.h.Write != nil {
+		f = w.h.Write(f)
+	}
+	return f(b)
+}
+
+func (w *rw) Flush() {
+	f := w.w.(http.Flusher).Flush
+	if w.h.Flush != nil {
+		f = w.h.Flush(f)
+	}
+	f()
+}
+
+func (w *rw) CloseNotify() <-chan bool {
+	f := w.w.(http.CloseNotifier).CloseNotify
+	if w.h.CloseNotify != nil {
+		f = w.h.CloseNotify(f)
+	}
+	return f()
+}
+
+func (w *rw) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+	f := w.w.(http.Hijacker).Hijack
+	if w.h.Hijack != nil {
+		f = w.h.Hijack(f)
+	}
+	return f()
+}
+
+func (w *rw) ReadFrom(src io.Reader) (int64, error) {
+	f := w.w.(io.ReaderFrom).ReadFrom
+	if w.h.ReadFrom != nil {
+		f = w.h.ReadFrom(f)
+	}
+	return f(src)
+}

vendor/github.com/golang/protobuf/jsonpb/decode.go

@@ -0,0 +1,514 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonpb
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"math"
+	"reflect"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/golang/protobuf/proto"
+	"google.golang.org/protobuf/encoding/protojson"
+	protoV2 "google.golang.org/protobuf/proto"
+	"google.golang.org/protobuf/reflect/protoreflect"
+	"google.golang.org/protobuf/reflect/protoregistry"
+)
+
+const wrapJSONUnmarshalV2 = false
+
+// UnmarshalNext unmarshals the next JSON object from d into m.
+func UnmarshalNext(d *json.Decoder, m proto.Message) error {
+	return new(Unmarshaler).UnmarshalNext(d, m)
+}
+
+// Unmarshal unmarshals a JSON object from r into m.
+func Unmarshal(r io.Reader, m proto.Message) error {
+	return new(Unmarshaler).Unmarshal(r, m)
+}
+
+// UnmarshalString unmarshals a JSON object from s into m.
+func UnmarshalString(s string, m proto.Message) error {
+	return new(Unmarshaler).Unmarshal(strings.NewReader(s), m)
+}
+
+// Unmarshaler is a configurable object for converting from a JSON
+// representation to a protocol buffer object.
+type Unmarshaler struct {
+	// AllowUnknownFields specifies whether to allow messages to contain
+	// unknown JSON fields, as opposed to failing to unmarshal.
+	AllowUnknownFields bool
+
+	// AnyResolver is used to resolve the google.protobuf.Any well-known type.
+	// If unset, the global registry is used by default.
+	AnyResolver AnyResolver
+}
+
+// JSONPBUnmarshaler is implemented by protobuf messages that customize the way
+// they are unmarshaled from JSON. Messages that implement this should also
+// implement JSONPBMarshaler so that the custom format can be produced.
+//
+// The JSON unmarshaling must follow the JSON to proto specification:
+//	https://developers.google.com/protocol-buffers/docs/proto3#json
+//
+// Deprecated: Custom types should implement protobuf reflection instead.
+type JSONPBUnmarshaler interface {
+	UnmarshalJSONPB(*Unmarshaler, []byte) error
+}
+
+// Unmarshal unmarshals a JSON object from r into m.
+func (u *Unmarshaler) Unmarshal(r io.Reader, m proto.Message) error {
+	return u.UnmarshalNext(json.NewDecoder(r), m)
+}
+
+// UnmarshalNext unmarshals the next JSON object from d into m.
+func (u *Unmarshaler) UnmarshalNext(d *json.Decoder, m proto.Message) error {
+	if m == nil {
+		return errors.New("invalid nil message")
+	}
+
+	// Parse the next JSON object from the stream.
+	raw := json.RawMessage{}
+	if err := d.Decode(&raw); err != nil {
+		return err
+	}
+
+	// Check for custom unmarshalers first since they may not properly
+	// implement protobuf reflection that the logic below relies on.
+	if jsu, ok := m.(JSONPBUnmarshaler); ok {
+		return jsu.UnmarshalJSONPB(u, raw)
+	}
+
+	mr := proto.MessageReflect(m)
+
+	// NOTE: For historical reasons, a top-level null is treated as a noop.
+	// This is incorrect, but kept for compatibility.
+	if string(raw) == "null" && mr.Descriptor().FullName() != "google.protobuf.Value" {
+		return nil
+	}
+
+	if wrapJSONUnmarshalV2 {
+		// NOTE: If input message is non-empty, we need to preserve merge semantics
+		// of the old jsonpb implementation. These semantics are not supported by
+		// the protobuf JSON specification.
+		isEmpty := true
+		mr.Range(func(protoreflect.FieldDescriptor, protoreflect.Value) bool {
+			isEmpty = false // at least one iteration implies non-empty
+			return false
+		})
+		if !isEmpty {
+			// Perform unmarshaling into a newly allocated, empty message.
+			mr = mr.New()
+
+			// Use a defer to copy all unmarshaled fields into the original message.
+			dst := proto.MessageReflect(m)
+			defer mr.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
+				dst.Set(fd, v)
+				return true
+			})
+		}
+
+		// Unmarshal using the v2 JSON unmarshaler.
+		opts := protojson.UnmarshalOptions{
+			DiscardUnknown: u.AllowUnknownFields,
+		}
+		if u.AnyResolver != nil {
+			opts.Resolver = anyResolver{u.AnyResolver}
+		}
+		return opts.Unmarshal(raw, mr.Interface())
+	} else {
+		if err := u.unmarshalMessage(mr, raw); err != nil {
+			return err
+		}
+		return protoV2.CheckInitialized(mr.Interface())
+	}
+}
+
+func (u *Unmarshaler) unmarshalMessage(m protoreflect.Message, in []byte) error {
+	md := m.Descriptor()
+	fds := md.Fields()
+
+	if string(in) == "null" && md.FullName() != "google.protobuf.Value" {
+		return nil
+	}
+
+	if jsu, ok := proto.MessageV1(m.Interface()).(JSONPBUnmarshaler); ok {
+		return jsu.UnmarshalJSONPB(u, in)
+	}
+
+	switch wellKnownType(md.FullName()) {
+	case "Any":
+		var jsonObject map[string]json.RawMessage
+		if err := json.Unmarshal(in, &jsonObject); err != nil {
+			return err
+		}
+
+		rawTypeURL, ok := jsonObject["@type"]
+		if !ok {
+			return errors.New("Any JSON doesn't have '@type'")
+		}
+		typeURL, err := unquoteString(string(rawTypeURL))
+		if err != nil {
+			return fmt.Errorf("can't unmarshal Any's '@type': %q", rawTypeURL)
+		}
+		m.Set(fds.ByNumber(1), protoreflect.ValueOfString(typeURL))
+
+		var m2 protoreflect.Message
+		if u.AnyResolver != nil {
+			mi, err := u.AnyResolver.Resolve(typeURL)
+			if err != nil {
+				return err
+			}
+			m2 = proto.MessageReflect(mi)
+		} else {
+			mt, err := protoregistry.GlobalTypes.FindMessageByURL(typeURL)
+			if err != nil {
+				if err == protoregistry.NotFound {
+					return fmt.Errorf("could not resolve Any message type: %v", typeURL)
+				}
+				return err
+			}
+			m2 = mt.New()
+		}
+
+		if wellKnownType(m2.Descriptor().FullName()) != "" {
+			rawValue, ok := jsonObject["value"]
+			if !ok {
+				return errors.New("Any JSON doesn't have 'value'")
+			}
+			if err := u.unmarshalMessage(m2, rawValue); err != nil {
+				return fmt.Errorf("can't unmarshal Any nested proto %v: %v", typeURL, err)
+			}
+		} else {
+			delete(jsonObject, "@type")
+			rawJSON, err := json.Marshal(jsonObject)
+			if err != nil {
+				return fmt.Errorf("can't generate JSON for Any's nested proto to be unmarshaled: %v", err)
+			}
+			if err = u.unmarshalMessage(m2, rawJSON); err != nil {
+				return fmt.Errorf("can't unmarshal Any nested proto %v: %v", typeURL, err)
+			}
+		}
+
+		rawWire, err := protoV2.Marshal(m2.Interface())
+		if err != nil {
+			return fmt.Errorf("can't marshal proto %v into Any.Value: %v", typeURL, err)
+		}
+		m.Set(fds.ByNumber(2), protoreflect.ValueOfBytes(rawWire))
+		return nil
+	case "BoolValue", "BytesValue", "StringValue",
+		"Int32Value", "UInt32Value", "FloatValue",
+		"Int64Value", "UInt64Value", "DoubleValue":
+		fd := fds.ByNumber(1)
+		v, err := u.unmarshalValue(m.NewField(fd), in, fd)
+		if err != nil {
+			return err
+		}
+		m.Set(fd, v)
+		return nil
+	case "Duration":
+		v, err := unquoteString(string(in))
+		if err != nil {
+			return err
+		}
+		d, err := time.ParseDuration(v)
+		if err != nil {
+			return fmt.Errorf("bad Duration: %v", err)
+		}
+
+		sec := d.Nanoseconds() / 1e9
+		nsec := d.Nanoseconds() % 1e9
+		m.Set(fds.ByNumber(1), protoreflect.ValueOfInt64(int64(sec)))
+		m.Set(fds.ByNumber(2), protoreflect.ValueOfInt32(int32(nsec)))
+		return nil
+	case "Timestamp":
+		v, err := unquoteString(string(in))
+		if err != nil {
+			return err
+		}
+		t, err := time.Parse(time.RFC3339Nano, v)
+		if err != nil {
+			return fmt.Errorf("bad Timestamp: %v", err)
+		}
+
+		sec := t.Unix()
+		nsec := t.Nanosecond()
+		m.Set(fds.ByNumber(1), protoreflect.ValueOfInt64(int64(sec)))
+		m.Set(fds.ByNumber(2), protoreflect.ValueOfInt32(int32(nsec)))
+		return nil
+	case "Value":
+		switch {
+		case string(in) == "null":
+			m.Set(fds.ByNumber(1), protoreflect.ValueOfEnum(0))
+		case string(in) == "true":
+			m.Set(fds.ByNumber(4), protoreflect.ValueOfBool(true))
+		case string(in) == "false":
+			m.Set(fds.ByNumber(4), protoreflect.ValueOfBool(false))
+		case hasPrefixAndSuffix('"', in, '"'):
+			s, err := unquoteString(string(in))
+			if err != nil {
+				return fmt.Errorf("unrecognized type for Value %q", in)
+			}
+			m.Set(fds.ByNumber(3), protoreflect.ValueOfString(s))
+		case hasPrefixAndSuffix('[', in, ']'):
+			v := m.Mutable(fds.ByNumber(6))
+			return u.unmarshalMessage(v.Message(), in)
+		case hasPrefixAndSuffix('{', in, '}'):
+			v := m.Mutable(fds.ByNumber(5))
+			return u.unmarshalMessage(v.Message(), in)
+		default:
+			f, err := strconv.ParseFloat(string(in), 0)
+			if err != nil {
+				return fmt.Errorf("unrecognized type for Value %q", in)
+			}
+			m.Set(fds.ByNumber(2), protoreflect.ValueOfFloat64(f))
+		}
+		return nil
+	case "ListValue":
+		var jsonArray []json.RawMessage
+		if err := json.Unmarshal(in, &jsonArray); err != nil {
+			return fmt.Errorf("bad ListValue: %v", err)
+		}
+
+		lv := m.Mutable(fds.ByNumber(1)).List()
+		for _, raw := range jsonArray {
+			ve := lv.NewElement()
+			if err := u.unmarshalMessage(ve.Message(), raw); err != nil {
+				return err
+			}
+			lv.Append(ve)
+		}
+		return nil
+	case "Struct":
+		var jsonObject map[string]json.RawMessage
+		if err := json.Unmarshal(in, &jsonObject); err != nil {
+			return fmt.Errorf("bad StructValue: %v", err)
+		}
+
+		mv := m.Mutable(fds.ByNumber(1)).Map()
+		for key, raw := range jsonObject {
+			kv := protoreflect.ValueOf(key).MapKey()
+			vv := mv.NewValue()
+			if err := u.unmarshalMessage(vv.Message(), raw); err != nil {
+				return fmt.Errorf("bad value in StructValue for key %q: %v", key, err)
+			}
+			mv.Set(kv, vv)
+		}
+		return nil
+	}
+
+	var jsonObject map[string]json.RawMessage
+	if err := json.Unmarshal(in, &jsonObject); err != nil {
+		return err
+	}
+
+	// Handle known fields.
+	for i := 0; i < fds.Len(); i++ {
+		fd := fds.Get(i)
+		if fd.IsWeak() && fd.Message().IsPlaceholder() {
+			continue //  weak reference is not linked in
+		}
+
+		// Search for any raw JSON value associated with this field.
+		var raw json.RawMessage
+		name := string(fd.Name())
+		if fd.Kind() == protoreflect.GroupKind {
+			name = string(fd.Message().Name())
+		}
+		if v, ok := jsonObject[name]; ok {
+			delete(jsonObject, name)
+			raw = v
+		}
+		name = string(fd.JSONName())
+		if v, ok := jsonObject[name]; ok {
+			delete(jsonObject, name)
+			raw = v
+		}
+
+		// Unmarshal the field value.
+		if raw == nil || (string(raw) == "null" && !isSingularWellKnownValue(fd)) {
+			continue
+		}
+		v, err := u.unmarshalValue(m.NewField(fd), raw, fd)
+		if err != nil {
+			return err
+		}
+		m.Set(fd, v)
+	}
+
+	// Handle extension fields.
+	for name, raw := range jsonObject {
+		if !strings.HasPrefix(name, "[") || !strings.HasSuffix(name, "]") {
+			continue
+		}
+
+		// Resolve the extension field by name.
+		xname := protoreflect.FullName(name[len("[") : len(name)-len("]")])
+		xt, _ := protoregistry.GlobalTypes.FindExtensionByName(xname)
+		if xt == nil && isMessageSet(md) {
+			xt, _ = protoregistry.GlobalTypes.FindExtensionByName(xname.Append("message_set_extension"))
+		}
+		if xt == nil {
+			continue
+		}
+		delete(jsonObject, name)
+		fd := xt.TypeDescriptor()
+		if fd.ContainingMessage().FullName() != m.Descriptor().FullName() {
+			return fmt.Errorf("extension field %q does not extend message %q", xname, m.Descriptor().FullName())
+		}
+
+		// Unmarshal the field value.
+		if raw == nil || (string(raw) == "null" && !isSingularWellKnownValue(fd)) {
+			continue
+		}
+		v, err := u.unmarshalValue(m.NewField(fd), raw, fd)
+		if err != nil {
+			return err
+		}
+		m.Set(fd, v)
+	}
+
+	if !u.AllowUnknownFields && len(jsonObject) > 0 {
+		for name := range jsonObject {
+			return fmt.Errorf("unknown field %q in %v", name, md.FullName())
+		}
+	}
+	return nil
+}
+
+func isSingularWellKnownValue(fd protoreflect.FieldDescriptor) bool {
+	if md := fd.Message(); md != nil {
+		return md.FullName() == "google.protobuf.Value" && fd.Cardinality() != protoreflect.Repeated
+	}
+	return false
+}
+
+func (u *Unmarshaler) unmarshalValue(v protoreflect.Value, in []byte, fd protoreflect.FieldDescriptor) (protoreflect.Value, error) {
+	switch {
+	case fd.IsList():
+		var jsonArray []json.RawMessage
+		if err := json.Unmarshal(in, &jsonArray); err != nil {
+			return v, err
+		}
+		lv := v.List()
+		for _, raw := range jsonArray {
+			ve, err := u.unmarshalSingularValue(lv.NewElement(), raw, fd)
+			if err != nil {
+				return v, err
+			}
+			lv.Append(ve)
+		}
+		return v, nil
+	case fd.IsMap():
+		var jsonObject map[string]json.RawMessage
+		if err := json.Unmarshal(in, &jsonObject); err != nil {
+			return v, err
+		}
+		kfd := fd.MapKey()
+		vfd := fd.MapValue()
+		mv := v.Map()
+		for key, raw := range jsonObject {
+			var kv protoreflect.MapKey
+			if kfd.Kind() == protoreflect.StringKind {
+				kv = protoreflect.ValueOf(key).MapKey()
+			} else {
+				v, err := u.unmarshalSingularValue(kfd.Default(), []byte(key), kfd)
+				if err != nil {
+					return v, err
+				}
+				kv = v.MapKey()
+			}
+
+			vv, err := u.unmarshalSingularValue(mv.NewValue(), raw, vfd)
+			if err != nil {
+				return v, err
+			}
+			mv.Set(kv, vv)
+		}
+		return v, nil
+	default:
+		return u.unmarshalSingularValue(v, in, fd)
+	}
+}
+
+var nonFinite = map[string]float64{
+	`"NaN"`:       math.NaN(),
+	`"Infinity"`:  math.Inf(+1),
+	`"-Infinity"`: math.Inf(-1),
+}
+
+func (u *Unmarshaler) unmarshalSingularValue(v protoreflect.Value, in []byte, fd protoreflect.FieldDescriptor) (protoreflect.Value, error) {
+	switch fd.Kind() {
+	case protoreflect.BoolKind:
+		return unmarshalValue(in, new(bool))
+	case protoreflect.Int32Kind, protoreflect.Sint32Kind, protoreflect.Sfixed32Kind:
+		return unmarshalValue(trimQuote(in), new(int32))
+	case protoreflect.Int64Kind, protoreflect.Sint64Kind, protoreflect.Sfixed64Kind:
+		return unmarshalValue(trimQuote(in), new(int64))
+	case protoreflect.Uint32Kind, protoreflect.Fixed32Kind:
+		return unmarshalValue(trimQuote(in), new(uint32))
+	case protoreflect.Uint64Kind, protoreflect.Fixed64Kind:
+		return unmarshalValue(trimQuote(in), new(uint64))
+	case protoreflect.FloatKind:
+		if f, ok := nonFinite[string(in)]; ok {
+			return protoreflect.ValueOfFloat32(float32(f)), nil
+		}
+		return unmarshalValue(trimQuote(in), new(float32))
+	case protoreflect.DoubleKind:
+		if f, ok := nonFinite[string(in)]; ok {
+			return protoreflect.ValueOfFloat64(float64(f)), nil
+		}
+		return unmarshalValue(trimQuote(in), new(float64))
+	case protoreflect.StringKind:
+		return unmarshalValue(in, new(string))
+	case protoreflect.BytesKind:
+		return unmarshalValue(in, new([]byte))
+	case protoreflect.EnumKind:
+		if hasPrefixAndSuffix('"', in, '"') {
+			vd := fd.Enum().Values().ByName(protoreflect.Name(trimQuote(in)))
+			if vd == nil {
+				return v, fmt.Errorf("unknown value %q for enum %s", in, fd.Enum().FullName())
+			}
+			return protoreflect.ValueOfEnum(vd.Number()), nil
+		}
+		return unmarshalValue(in, new(protoreflect.EnumNumber))
+	case protoreflect.MessageKind, protoreflect.GroupKind:
+		err := u.unmarshalMessage(v.Message(), in)
+		return v, err
+	default:
+		panic(fmt.Sprintf("invalid kind %v", fd.Kind()))
+	}
+}
+
+func unmarshalValue(in []byte, v interface{}) (protoreflect.Value, error) {
+	err := json.Unmarshal(in, v)
+	return protoreflect.ValueOf(reflect.ValueOf(v).Elem().Interface()), err
+}
+
+func unquoteString(in string) (out string, err error) {
+	err = json.Unmarshal([]byte(in), &out)
+	return out, err
+}
+
+func hasPrefixAndSuffix(prefix byte, in []byte, suffix byte) bool {
+	if len(in) >= 2 && in[0] == prefix && in[len(in)-1] == suffix {
+		return true
+	}
+	return false
+}
+
+// trimQuote is like unquoteString but simply strips surrounding quotes.
+// This is incorrect, but is behavior done by the legacy implementation.
+func trimQuote(in []byte) []byte {
+	if len(in) >= 2 && in[0] == '"' && in[len(in)-1] == '"' {
+		in = in[1 : len(in)-1]
+	}
+	return in
+}

vendor/github.com/golang/protobuf/jsonpb/encode.go

@@ -0,0 +1,559 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package jsonpb
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"math"
+	"reflect"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/golang/protobuf/proto"
+	"google.golang.org/protobuf/encoding/protojson"
+	protoV2 "google.golang.org/protobuf/proto"
+	"google.golang.org/protobuf/reflect/protoreflect"
+	"google.golang.org/protobuf/reflect/protoregistry"
+)
+
+const wrapJSONMarshalV2 = false
+
+// Marshaler is a configurable object for marshaling protocol buffer messages
+// to the specified JSON representation.
+type Marshaler struct {
+	// OrigName specifies whether to use the original protobuf name for fields.
+	OrigName bool
+
+	// EnumsAsInts specifies whether to render enum values as integers,
+	// as opposed to string values.
+	EnumsAsInts bool
+
+	// EmitDefaults specifies whether to render fields with zero values.
+	EmitDefaults bool
+
+	// Indent controls whether the output is compact or not.
+	// If empty, the output is compact JSON. Otherwise, every JSON object
+	// entry and JSON array value will be on its own line.
+	// Each line will be preceded by repeated copies of Indent, where the
+	// number of copies is the current indentation depth.
+	Indent string
+
+	// AnyResolver is used to resolve the google.protobuf.Any well-known type.
+	// If unset, the global registry is used by default.
+	AnyResolver AnyResolver
+}
+
+// JSONPBMarshaler is implemented by protobuf messages that customize the
+// way they are marshaled to JSON. Messages that implement this should also
+// implement JSONPBUnmarshaler so that the custom format can be parsed.
+//
+// The JSON marshaling must follow the proto to JSON specification:
+//	https://developers.google.com/protocol-buffers/docs/proto3#json
+//
+// Deprecated: Custom types should implement protobuf reflection instead.
+type JSONPBMarshaler interface {
+	MarshalJSONPB(*Marshaler) ([]byte, error)
+}
+
+// Marshal serializes a protobuf message as JSON into w.
+func (jm *Marshaler) Marshal(w io.Writer, m proto.Message) error {
+	b, err := jm.marshal(m)
+	if len(b) > 0 {
+		if _, err := w.Write(b); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+// MarshalToString serializes a protobuf message as JSON in string form.
+func (jm *Marshaler) MarshalToString(m proto.Message) (string, error) {
+	b, err := jm.marshal(m)
+	if err != nil {
+		return "", err
+	}
+	return string(b), nil
+}
+
+func (jm *Marshaler) marshal(m proto.Message) ([]byte, error) {
+	v := reflect.ValueOf(m)
+	if m == nil || (v.Kind() == reflect.Ptr && v.IsNil()) {
+		return nil, errors.New("Marshal called with nil")
+	}
+
+	// Check for custom marshalers first since they may not properly
+	// implement protobuf reflection that the logic below relies on.
+	if jsm, ok := m.(JSONPBMarshaler); ok {
+		return jsm.MarshalJSONPB(jm)
+	}
+
+	if wrapJSONMarshalV2 {
+		opts := protojson.MarshalOptions{
+			UseProtoNames:   jm.OrigName,
+			UseEnumNumbers:  jm.EnumsAsInts,
+			EmitUnpopulated: jm.EmitDefaults,
+			Indent:          jm.Indent,
+		}
+		if jm.AnyResolver != nil {
+			opts.Resolver = anyResolver{jm.AnyResolver}
+		}
+		return opts.Marshal(proto.MessageReflect(m).Interface())
+	} else {
+		// Check for unpopulated required fields first.
+		m2 := proto.MessageReflect(m)
+		if err := protoV2.CheckInitialized(m2.Interface()); err != nil {
+			return nil, err
+		}
+
+		w := jsonWriter{Marshaler: jm}
+		err := w.marshalMessage(m2, "", "")
+		return w.buf, err
+	}
+}
+
+type jsonWriter struct {
+	*Marshaler
+	buf []byte
+}
+
+func (w *jsonWriter) write(s string) {
+	w.buf = append(w.buf, s...)
+}
+
+func (w *jsonWriter) marshalMessage(m protoreflect.Message, indent, typeURL string) error {
+	if jsm, ok := proto.MessageV1(m.Interface()).(JSONPBMarshaler); ok {
+		b, err := jsm.MarshalJSONPB(w.Marshaler)
+		if err != nil {
+			return err
+		}
+		if typeURL != "" {
+			// we are marshaling this object to an Any type
+			var js map[string]*json.RawMessage
+			if err = json.Unmarshal(b, &js); err != nil {
+				return fmt.Errorf("type %T produced invalid JSON: %v", m.Interface(), err)
+			}
+			turl, err := json.Marshal(typeURL)
+			if err != nil {
+				return fmt.Errorf("failed to marshal type URL %q to JSON: %v", typeURL, err)
+			}
+			js["@type"] = (*json.RawMessage)(&turl)
+			if b, err = json.Marshal(js); err != nil {
+				return err
+			}
+		}
+		w.write(string(b))
+		return nil
+	}
+
+	md := m.Descriptor()
+	fds := md.Fields()
+
+	// Handle well-known types.
+	const secondInNanos = int64(time.Second / time.Nanosecond)
+	switch wellKnownType(md.FullName()) {
+	case "Any":
+		return w.marshalAny(m, indent)
+	case "BoolValue", "BytesValue", "StringValue",
+		"Int32Value", "UInt32Value", "FloatValue",
+		"Int64Value", "UInt64Value", "DoubleValue":
+		fd := fds.ByNumber(1)
+		return w.marshalValue(fd, m.Get(fd), indent)
+	case "Duration":
+		const maxSecondsInDuration = 315576000000
+		// "Generated output always contains 0, 3, 6, or 9 fractional digits,
+		//  depending on required precision."
+		s := m.Get(fds.ByNumber(1)).Int()
+		ns := m.Get(fds.ByNumber(2)).Int()
+		if s < -maxSecondsInDuration || s > maxSecondsInDuration {
+			return fmt.Errorf("seconds out of range %v", s)
+		}
+		if ns <= -secondInNanos || ns >= secondInNanos {
+			return fmt.Errorf("ns out of range (%v, %v)", -secondInNanos, secondInNanos)
+		}
+		if (s > 0 && ns < 0) || (s < 0 && ns > 0) {
+			return errors.New("signs of seconds and nanos do not match")
+		}
+		var sign string
+		if s < 0 || ns < 0 {
+			sign, s, ns = "-", -1*s, -1*ns
+		}
+		x := fmt.Sprintf("%s%d.%09d", sign, s, ns)
+		x = strings.TrimSuffix(x, "000")
+		x = strings.TrimSuffix(x, "000")
+		x = strings.TrimSuffix(x, ".000")
+		w.write(fmt.Sprintf(`"%vs"`, x))
+		return nil
+	case "Timestamp":
+		// "RFC 3339, where generated output will always be Z-normalized
+		//  and uses 0, 3, 6 or 9 fractional digits."
+		s := m.Get(fds.ByNumber(1)).Int()
+		ns := m.Get(fds.ByNumber(2)).Int()
+		if ns < 0 || ns >= secondInNanos {
+			return fmt.Errorf("ns out of range [0, %v)", secondInNanos)
+		}
+		t := time.Unix(s, ns).UTC()
+		// time.RFC3339Nano isn't exactly right (we need to get 3/6/9 fractional digits).
+		x := t.Format("2006-01-02T15:04:05.000000000")
+		x = strings.TrimSuffix(x, "000")
+		x = strings.TrimSuffix(x, "000")
+		x = strings.TrimSuffix(x, ".000")
+		w.write(fmt.Sprintf(`"%vZ"`, x))
+		return nil
+	case "Value":
+		// JSON value; which is a null, number, string, bool, object, or array.
+		od := md.Oneofs().Get(0)
+		fd := m.WhichOneof(od)
+		if fd == nil {
+			return errors.New("nil Value")
+		}
+		return w.marshalValue(fd, m.Get(fd), indent)
+	case "Struct", "ListValue":
+		// JSON object or array.
+		fd := fds.ByNumber(1)
+		return w.marshalValue(fd, m.Get(fd), indent)
+	}
+
+	w.write("{")
+	if w.Indent != "" {
+		w.write("\n")
+	}
+
+	firstField := true
+	if typeURL != "" {
+		if err := w.marshalTypeURL(indent, typeURL); err != nil {
+			return err
+		}
+		firstField = false
+	}
+
+	for i := 0; i < fds.Len(); {
+		fd := fds.Get(i)
+		if od := fd.ContainingOneof(); od != nil {
+			fd = m.WhichOneof(od)
+			i += od.Fields().Len()
+			if fd == nil {
+				continue
+			}
+		} else {
+			i++
+		}
+
+		v := m.Get(fd)
+
+		if !m.Has(fd) {
+			if !w.EmitDefaults || fd.ContainingOneof() != nil {
+				continue
+			}
+			if fd.Cardinality() != protoreflect.Repeated && (fd.Message() != nil || fd.Syntax() == protoreflect.Proto2) {
+				v = protoreflect.Value{} // use "null" for singular messages or proto2 scalars
+			}
+		}
+
+		if !firstField {
+			w.writeComma()
+		}
+		if err := w.marshalField(fd, v, indent); err != nil {
+			return err
+		}
+		firstField = false
+	}
+
+	// Handle proto2 extensions.
+	if md.ExtensionRanges().Len() > 0 {
+		// Collect a sorted list of all extension descriptor and values.
+		type ext struct {
+			desc protoreflect.FieldDescriptor
+			val  protoreflect.Value
+		}
+		var exts []ext
+		m.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
+			if fd.IsExtension() {
+				exts = append(exts, ext{fd, v})
+			}
+			return true
+		})
+		sort.Slice(exts, func(i, j int) bool {
+			return exts[i].desc.Number() < exts[j].desc.Number()
+		})
+
+		for _, ext := range exts {
+			if !firstField {
+				w.writeComma()
+			}
+			if err := w.marshalField(ext.desc, ext.val, indent); err != nil {
+				return err
+			}
+			firstField = false
+		}
+	}
+
+	if w.Indent != "" {
+		w.write("\n")
+		w.write(indent)
+	}
+	w.write("}")
+	return nil
+}
+
+func (w *jsonWriter) writeComma() {
+	if w.Indent != "" {
+		w.write(",\n")
+	} else {
+		w.write(",")
+	}
+}
+
+func (w *jsonWriter) marshalAny(m protoreflect.Message, indent string) error {
+	// "If the Any contains a value that has a special JSON mapping,
+	//  it will be converted as follows: {"@type": xxx, "value": yyy}.
+	//  Otherwise, the value will be converted into a JSON object,
+	//  and the "@type" field will be inserted to indicate the actual data type."
+	md := m.Descriptor()
+	typeURL := m.Get(md.Fields().ByNumber(1)).String()
+	rawVal := m.Get(md.Fields().ByNumber(2)).Bytes()
+
+	var m2 protoreflect.Message
+	if w.AnyResolver != nil {
+		mi, err := w.AnyResolver.Resolve(typeURL)
+		if err != nil {
+			return err
+		}
+		m2 = proto.MessageReflect(mi)
+	} else {
+		mt, err := protoregistry.GlobalTypes.FindMessageByURL(typeURL)
+		if err != nil {
+			return err
+		}
+		m2 = mt.New()
+	}
+
+	if err := protoV2.Unmarshal(rawVal, m2.Interface()); err != nil {
+		return err
+	}
+
+	if wellKnownType(m2.Descriptor().FullName()) == "" {
+		return w.marshalMessage(m2, indent, typeURL)
+	}
+
+	w.write("{")
+	if w.Indent != "" {
+		w.write("\n")
+	}
+	if err := w.marshalTypeURL(indent, typeURL); err != nil {
+		return err
+	}
+	w.writeComma()
+	if w.Indent != "" {
+		w.write(indent)
+		w.write(w.Indent)
+		w.write(`"value": `)
+	} else {
+		w.write(`"value":`)
+	}
+	if err := w.marshalMessage(m2, indent+w.Indent, ""); err != nil {
+		return err
+	}
+	if w.Indent != "" {
+		w.write("\n")
+		w.write(indent)
+	}
+	w.write("}")
+	return nil
+}
+
+func (w *jsonWriter) marshalTypeURL(indent, typeURL string) error {
+	if w.Indent != "" {
+		w.write(indent)
+		w.write(w.Indent)
+	}
+	w.write(`"@type":`)
+	if w.Indent != "" {
+		w.write(" ")
+	}
+	b, err := json.Marshal(typeURL)
+	if err != nil {
+		return err
+	}
+	w.write(string(b))
+	return nil
+}
+
+// marshalField writes field description and value to the Writer.
+func (w *jsonWriter) marshalField(fd protoreflect.FieldDescriptor, v protoreflect.Value, indent string) error {
+	if w.Indent != "" {
+		w.write(indent)
+		w.write(w.Indent)
+	}
+	w.write(`"`)
+	switch {
+	case fd.IsExtension():
+		// For message set, use the fname of the message as the extension name.
+		name := string(fd.FullName())
+		if isMessageSet(fd.ContainingMessage()) {
+			name = strings.TrimSuffix(name, ".message_set_extension")
+		}
+
+		w.write("[" + name + "]")
+	case w.OrigName:
+		name := string(fd.Name())
+		if fd.Kind() == protoreflect.GroupKind {
+			name = string(fd.Message().Name())
+		}
+		w.write(name)
+	default:
+		w.write(string(fd.JSONName()))
+	}
+	w.write(`":`)
+	if w.Indent != "" {
+		w.write(" ")
+	}
+	return w.marshalValue(fd, v, indent)
+}
+
+func (w *jsonWriter) marshalValue(fd protoreflect.FieldDescriptor, v protoreflect.Value, indent string) error {
+	switch {
+	case fd.IsList():
+		w.write("[")
+		comma := ""
+		lv := v.List()
+		for i := 0; i < lv.Len(); i++ {
+			w.write(comma)
+			if w.Indent != "" {
+				w.write("\n")
+				w.write(indent)
+				w.write(w.Indent)
+				w.write(w.Indent)
+			}
+			if err := w.marshalSingularValue(fd, lv.Get(i), indent+w.Indent); err != nil {
+				return err
+			}
+			comma = ","
+		}
+		if w.Indent != "" {
+			w.write("\n")
+			w.write(indent)
+			w.write(w.Indent)
+		}
+		w.write("]")
+		return nil
+	case fd.IsMap():
+		kfd := fd.MapKey()
+		vfd := fd.MapValue()
+		mv := v.Map()
+
+		// Collect a sorted list of all map keys and values.
+		type entry struct{ key, val protoreflect.Value }
+		var entries []entry
+		mv.Range(func(k protoreflect.MapKey, v protoreflect.Value) bool {
+			entries = append(entries, entry{k.Value(), v})
+			return true
+		})
+		sort.Slice(entries, func(i, j int) bool {
+			switch kfd.Kind() {
+			case protoreflect.BoolKind:
+				return !entries[i].key.Bool() && entries[j].key.Bool()
+			case protoreflect.Int32Kind, protoreflect.Sint32Kind, protoreflect.Sfixed32Kind, protoreflect.Int64Kind, protoreflect.Sint64Kind, protoreflect.Sfixed64Kind:
+				return entries[i].key.Int() < entries[j].key.Int()
+			case protoreflect.Uint32Kind, protoreflect.Fixed32Kind, protoreflect.Uint64Kind, protoreflect.Fixed64Kind:
+				return entries[i].key.Uint() < entries[j].key.Uint()
+			case protoreflect.StringKind:
+				return entries[i].key.String() < entries[j].key.String()
+			default:
+				panic("invalid kind")
+			}
+		})
+
+		w.write(`{`)
+		comma := ""
+		for _, entry := range entries {
+			w.write(comma)
+			if w.Indent != "" {
+				w.write("\n")
+				w.write(indent)
+				w.write(w.Indent)
+				w.write(w.Indent)
+			}
+
+			s := fmt.Sprint(entry.key.Interface())
+			b, err := json.Marshal(s)
+			if err != nil {
+				return err
+			}
+			w.write(string(b))
+
+			w.write(`:`)
+			if w.Indent != "" {
+				w.write(` `)
+			}
+
+			if err := w.marshalSingularValue(vfd, entry.val, indent+w.Indent); err != nil {
+				return err
+			}
+			comma = ","
+		}
+		if w.Indent != "" {
+			w.write("\n")
+			w.write(indent)
+			w.write(w.Indent)
+		}
+		w.write(`}`)
+		return nil
+	default:
+		return w.marshalSingularValue(fd, v, indent)
+	}
+}
+
+func (w *jsonWriter) marshalSingularValue(fd protoreflect.FieldDescriptor, v protoreflect.Value, indent string) error {
+	switch {
+	case !v.IsValid():
+		w.write("null")
+		return nil
+	case fd.Message() != nil:
+		return w.marshalMessage(v.Message(), indent+w.Indent, "")
+	case fd.Enum() != nil:
+		if fd.Enum().FullName() == "google.protobuf.NullValue" {
+			w.write("null")
+			return nil
+		}
+
+		vd := fd.Enum().Values().ByNumber(v.Enum())
+		if vd == nil || w.EnumsAsInts {
+			w.write(strconv.Itoa(int(v.Enum())))
+		} else {
+			w.write(`"` + string(vd.Name()) + `"`)
+		}
+		return nil
+	default:
+		switch v.Interface().(type) {
+		case float32, float64:
+			switch {
+			case math.IsInf(v.Float(), +1):
+				w.write(`"Infinity"`)
+				return nil
+			case math.IsInf(v.Float(), -1):
+				w.write(`"-Infinity"`)
+				return nil
+			case math.IsNaN(v.Float()):
+				w.write(`"NaN"`)
+				return nil
+			}
+		case int64, uint64:
+			w.write(fmt.Sprintf(`"%d"`, v.Interface()))
+			return nil
+		}
+
+		b, err := json.Marshal(v.Interface())
+		if err != nil {
+			return err
+		}
+		w.write(string(b))
+		return nil
+	}
+}

vendor/github.com/golang/protobuf/jsonpb/json.go

@@ -0,0 +1,69 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package jsonpb provides functionality to marshal and unmarshal between a
+// protocol buffer message and JSON. It follows the specification at
+// https://developers.google.com/protocol-buffers/docs/proto3#json.
+//
+// Do not rely on the default behavior of the standard encoding/json package
+// when called on generated message types as it does not operate correctly.
+//
+// Deprecated: Use the "google.golang.org/protobuf/encoding/protojson"
+// package instead.
+package jsonpb
+
+import (
+	"github.com/golang/protobuf/proto"
+	"google.golang.org/protobuf/reflect/protoreflect"
+	"google.golang.org/protobuf/reflect/protoregistry"
+	"google.golang.org/protobuf/runtime/protoimpl"
+)
+
+// AnyResolver takes a type URL, present in an Any message,
+// and resolves it into an instance of the associated message.
+type AnyResolver interface {
+	Resolve(typeURL string) (proto.Message, error)
+}
+
+type anyResolver struct{ AnyResolver }
+
+func (r anyResolver) FindMessageByName(message protoreflect.FullName) (protoreflect.MessageType, error) {
+	return r.FindMessageByURL(string(message))
+}
+
+func (r anyResolver) FindMessageByURL(url string) (protoreflect.MessageType, error) {
+	m, err := r.Resolve(url)
+	if err != nil {
+		return nil, err
+	}
+	return protoimpl.X.MessageTypeOf(m), nil
+}
+
+func (r anyResolver) FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error) {
+	return protoregistry.GlobalTypes.FindExtensionByName(field)
+}
+
+func (r anyResolver) FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error) {
+	return protoregistry.GlobalTypes.FindExtensionByNumber(message, field)
+}
+
+func wellKnownType(s protoreflect.FullName) string {
+	if s.Parent() == "google.protobuf" {
+		switch s.Name() {
+		case "Empty", "Any",
+			"BoolValue", "BytesValue", "StringValue",
+			"Int32Value", "UInt32Value", "FloatValue",
+			"Int64Value", "UInt64Value", "DoubleValue",
+			"Duration", "Timestamp",
+			"NullValue", "Struct", "Value", "ListValue":
+			return string(s.Name())
+		}
+	}
+	return ""
+}
+
+func isMessageSet(md protoreflect.MessageDescriptor) bool {
+	ms, ok := md.(interface{ IsMessageSet() bool })
+	return ok && ms.IsMessageSet()
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/LICENSE.txt

@@ -0,0 +1,27 @@
+Copyright (c) 2015, Gengo, Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+
+    * Neither the name of Gengo, Inc. nor the names of its
+      contributors may be used to endorse or promote products derived from this
+      software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/grpc-ecosystem/grpc-gateway/internal/BUILD.bazel

@@ -0,0 +1,23 @@
+load("@rules_proto//proto:defs.bzl", "proto_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@io_bazel_rules_go//proto:def.bzl", "go_proto_library")
+
+package(default_visibility = ["//visibility:public"])
+
+proto_library(
+    name = "internal_proto",
+    srcs = ["errors.proto"],
+    deps = ["@com_google_protobuf//:any_proto"],
+)
+
+go_proto_library(
+    name = "internal_go_proto",
+    importpath = "github.com/grpc-ecosystem/grpc-gateway/internal",
+    proto = ":internal_proto",
+)
+
+go_library(
+    name = "go_default_library",
+    embed = [":internal_go_proto"],
+    importpath = "github.com/grpc-ecosystem/grpc-gateway/internal",
+)

vendor/github.com/grpc-ecosystem/grpc-gateway/internal/errors.pb.go

@@ -0,0 +1,189 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: internal/errors.proto
+
+package internal
+
+import (
+	fmt "fmt"
+	proto "github.com/golang/protobuf/proto"
+	any "github.com/golang/protobuf/ptypes/any"
+	math "math"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
+
+// Error is the generic error returned from unary RPCs.
+type Error struct {
+	Error string `protobuf:"bytes,1,opt,name=error,proto3" json:"error,omitempty"`
+	// This is to make the error more compatible with users that expect errors to be Status objects:
+	// https://github.com/grpc/grpc/blob/master/src/proto/grpc/status/status.proto
+	// It should be the exact same message as the Error field.
+	Code                 int32      `protobuf:"varint,2,opt,name=code,proto3" json:"code,omitempty"`
+	Message              string     `protobuf:"bytes,3,opt,name=message,proto3" json:"message,omitempty"`
+	Details              []*any.Any `protobuf:"bytes,4,rep,name=details,proto3" json:"details,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}   `json:"-"`
+	XXX_unrecognized     []byte     `json:"-"`
+	XXX_sizecache        int32      `json:"-"`
+}
+
+func (m *Error) Reset()         { *m = Error{} }
+func (m *Error) String() string { return proto.CompactTextString(m) }
+func (*Error) ProtoMessage()    {}
+func (*Error) Descriptor() ([]byte, []int) {
+	return fileDescriptor_9b093362ca6d1e03, []int{0}
+}
+
+func (m *Error) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Error.Unmarshal(m, b)
+}
+func (m *Error) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Error.Marshal(b, m, deterministic)
+}
+func (m *Error) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Error.Merge(m, src)
+}
+func (m *Error) XXX_Size() int {
+	return xxx_messageInfo_Error.Size(m)
+}
+func (m *Error) XXX_DiscardUnknown() {
+	xxx_messageInfo_Error.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Error proto.InternalMessageInfo
+
+func (m *Error) GetError() string {
+	if m != nil {
+		return m.Error
+	}
+	return ""
+}
+
+func (m *Error) GetCode() int32 {
+	if m != nil {
+		return m.Code
+	}
+	return 0
+}
+
+func (m *Error) GetMessage() string {
+	if m != nil {
+		return m.Message
+	}
+	return ""
+}
+
+func (m *Error) GetDetails() []*any.Any {
+	if m != nil {
+		return m.Details
+	}
+	return nil
+}
+
+// StreamError is a response type which is returned when
+// streaming rpc returns an error.
+type StreamError struct {
+	GrpcCode             int32      `protobuf:"varint,1,opt,name=grpc_code,json=grpcCode,proto3" json:"grpc_code,omitempty"`
+	HttpCode             int32      `protobuf:"varint,2,opt,name=http_code,json=httpCode,proto3" json:"http_code,omitempty"`
+	Message              string     `protobuf:"bytes,3,opt,name=message,proto3" json:"message,omitempty"`
+	HttpStatus           string     `protobuf:"bytes,4,opt,name=http_status,json=httpStatus,proto3" json:"http_status,omitempty"`
+	Details              []*any.Any `protobuf:"bytes,5,rep,name=details,proto3" json:"details,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}   `json:"-"`
+	XXX_unrecognized     []byte     `json:"-"`
+	XXX_sizecache        int32      `json:"-"`
+}
+
+func (m *StreamError) Reset()         { *m = StreamError{} }
+func (m *StreamError) String() string { return proto.CompactTextString(m) }
+func (*StreamError) ProtoMessage()    {}
+func (*StreamError) Descriptor() ([]byte, []int) {
+	return fileDescriptor_9b093362ca6d1e03, []int{1}
+}
+
+func (m *StreamError) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_StreamError.Unmarshal(m, b)
+}
+func (m *StreamError) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_StreamError.Marshal(b, m, deterministic)
+}
+func (m *StreamError) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_StreamError.Merge(m, src)
+}
+func (m *StreamError) XXX_Size() int {
+	return xxx_messageInfo_StreamError.Size(m)
+}
+func (m *StreamError) XXX_DiscardUnknown() {
+	xxx_messageInfo_StreamError.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_StreamError proto.InternalMessageInfo
+
+func (m *StreamError) GetGrpcCode() int32 {
+	if m != nil {
+		return m.GrpcCode
+	}
+	return 0
+}
+
+func (m *StreamError) GetHttpCode() int32 {
+	if m != nil {
+		return m.HttpCode
+	}
+	return 0
+}
+
+func (m *StreamError) GetMessage() string {
+	if m != nil {
+		return m.Message
+	}
+	return ""
+}
+
+func (m *StreamError) GetHttpStatus() string {
+	if m != nil {
+		return m.HttpStatus
+	}
+	return ""
+}
+
+func (m *StreamError) GetDetails() []*any.Any {
+	if m != nil {
+		return m.Details
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*Error)(nil), "grpc.gateway.runtime.Error")
+	proto.RegisterType((*StreamError)(nil), "grpc.gateway.runtime.StreamError")
+}
+
+func init() { proto.RegisterFile("internal/errors.proto", fileDescriptor_9b093362ca6d1e03) }
+
+var fileDescriptor_9b093362ca6d1e03 = []byte{
+	// 252 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x90, 0xc1, 0x4a, 0xc4, 0x30,
+	0x10, 0x86, 0x89, 0xbb, 0x75, 0xdb, 0xe9, 0x2d, 0x54, 0x88, 0xee, 0xc1, 0xb2, 0xa7, 0x9e, 0x52,
+	0xd0, 0x27, 0xd0, 0xc5, 0x17, 0xe8, 0xde, 0xbc, 0x2c, 0xd9, 0xdd, 0x31, 0x16, 0xda, 0xa4, 0x24,
+	0x53, 0xa4, 0xf8, 0x56, 0x3e, 0xa1, 0x24, 0xa5, 0xb0, 0x27, 0xf1, 0xd6, 0xf9, 0xfb, 0xcf, 0x7c,
+	0x1f, 0x81, 0xbb, 0xd6, 0x10, 0x3a, 0xa3, 0xba, 0x1a, 0x9d, 0xb3, 0xce, 0xcb, 0xc1, 0x59, 0xb2,
+	0xbc, 0xd0, 0x6e, 0x38, 0x4b, 0xad, 0x08, 0xbf, 0xd4, 0x24, 0xdd, 0x68, 0xa8, 0xed, 0xf1, 0xe1,
+	0x5e, 0x5b, 0xab, 0x3b, 0xac, 0x63, 0xe7, 0x34, 0x7e, 0xd4, 0xca, 0x4c, 0xf3, 0xc2, 0xee, 0x1b,
+	0x92, 0xb7, 0x70, 0x80, 0x17, 0x90, 0xc4, 0x4b, 0x82, 0x95, 0xac, 0xca, 0x9a, 0x79, 0xe0, 0x1c,
+	0xd6, 0x67, 0x7b, 0x41, 0x71, 0x53, 0xb2, 0x2a, 0x69, 0xe2, 0x37, 0x17, 0xb0, 0xe9, 0xd1, 0x7b,
+	0xa5, 0x51, 0xac, 0x62, 0x77, 0x19, 0xb9, 0x84, 0xcd, 0x05, 0x49, 0xb5, 0x9d, 0x17, 0xeb, 0x72,
+	0x55, 0xe5, 0x4f, 0x85, 0x9c, 0xc9, 0x72, 0x21, 0xcb, 0x17, 0x33, 0x35, 0x4b, 0x69, 0xf7, 0xc3,
+	0x20, 0x3f, 0x90, 0x43, 0xd5, 0xcf, 0x0e, 0x5b, 0xc8, 0x82, 0xff, 0x31, 0x22, 0x59, 0x44, 0xa6,
+	0x21, 0xd8, 0x07, 0xec, 0x16, 0xb2, 0x4f, 0xa2, 0xe1, 0x78, 0xe5, 0x93, 0x86, 0x60, 0xff, 0xb7,
+	0xd3, 0x23, 0xe4, 0x71, 0xcd, 0x93, 0xa2, 0x31, 0x78, 0x85, 0xbf, 0x10, 0xa2, 0x43, 0x4c, 0xae,
+	0xa5, 0x93, 0x7f, 0x48, 0xbf, 0xc2, 0x7b, 0xba, 0xbc, 0xfd, 0xe9, 0x36, 0x56, 0x9e, 0x7f, 0x03,
+	0x00, 0x00, 0xff, 0xff, 0xde, 0x72, 0x6b, 0x83, 0x8e, 0x01, 0x00, 0x00,
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/internal/errors.proto

@@ -0,0 +1,26 @@
+syntax = "proto3";
+package grpc.gateway.runtime;
+option go_package = "internal";
+
+import "google/protobuf/any.proto";
+
+// Error is the generic error returned from unary RPCs.
+message Error {
+	string error = 1;
+	// This is to make the error more compatible with users that expect errors to be Status objects:
+	// https://github.com/grpc/grpc/blob/master/src/proto/grpc/status/status.proto
+	// It should be the exact same message as the Error field.
+	int32 code = 2;
+	string message = 3;
+	repeated google.protobuf.Any details = 4;
+}
+
+// StreamError is a response type which is returned when
+// streaming rpc returns an error.
+message StreamError {
+	int32 grpc_code = 1;
+	int32 http_code = 2;
+	string message = 3;
+	string http_status = 4;
+	repeated google.protobuf.Any details = 5;
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/BUILD.bazel

@@ -0,0 +1,85 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+package(default_visibility = ["//visibility:public"])
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "context.go",
+        "convert.go",
+        "doc.go",
+        "errors.go",
+        "fieldmask.go",
+        "handler.go",
+        "marshal_httpbodyproto.go",
+        "marshal_json.go",
+        "marshal_jsonpb.go",
+        "marshal_proto.go",
+        "marshaler.go",
+        "marshaler_registry.go",
+        "mux.go",
+        "pattern.go",
+        "proto2_convert.go",
+        "proto_errors.go",
+        "query.go",
+    ],
+    importpath = "github.com/grpc-ecosystem/grpc-gateway/runtime",
+    deps = [
+        "//internal:go_default_library",
+        "//utilities:go_default_library",
+        "@com_github_golang_protobuf//descriptor:go_default_library_gen",
+        "@com_github_golang_protobuf//jsonpb:go_default_library_gen",
+        "@com_github_golang_protobuf//proto:go_default_library",
+        "@go_googleapis//google/api:httpbody_go_proto",
+        "@io_bazel_rules_go//proto/wkt:any_go_proto",
+        "@io_bazel_rules_go//proto/wkt:descriptor_go_proto",
+        "@io_bazel_rules_go//proto/wkt:duration_go_proto",
+        "@io_bazel_rules_go//proto/wkt:field_mask_go_proto",
+        "@io_bazel_rules_go//proto/wkt:timestamp_go_proto",
+        "@io_bazel_rules_go//proto/wkt:wrappers_go_proto",
+        "@org_golang_google_grpc//codes:go_default_library",
+        "@org_golang_google_grpc//grpclog:go_default_library",
+        "@org_golang_google_grpc//metadata:go_default_library",
+        "@org_golang_google_grpc//status:go_default_library",
+    ],
+)
+
+go_test(
+    name = "go_default_test",
+    size = "small",
+    srcs = [
+        "context_test.go",
+        "convert_test.go",
+        "errors_test.go",
+        "fieldmask_test.go",
+        "handler_test.go",
+        "marshal_httpbodyproto_test.go",
+        "marshal_json_test.go",
+        "marshal_jsonpb_test.go",
+        "marshal_proto_test.go",
+        "marshaler_registry_test.go",
+        "mux_test.go",
+        "pattern_test.go",
+        "query_test.go",
+    ],
+    embed = [":go_default_library"],
+    deps = [
+        "//internal:go_default_library",
+        "//runtime/internal/examplepb:go_default_library",
+        "//utilities:go_default_library",
+        "@com_github_golang_protobuf//jsonpb:go_default_library_gen",
+        "@com_github_golang_protobuf//proto:go_default_library",
+        "@com_github_golang_protobuf//ptypes:go_default_library_gen",
+        "@go_googleapis//google/api:httpbody_go_proto",
+        "@go_googleapis//google/rpc:errdetails_go_proto",
+        "@io_bazel_rules_go//proto/wkt:duration_go_proto",
+        "@io_bazel_rules_go//proto/wkt:empty_go_proto",
+        "@io_bazel_rules_go//proto/wkt:field_mask_go_proto",
+        "@io_bazel_rules_go//proto/wkt:struct_go_proto",
+        "@io_bazel_rules_go//proto/wkt:timestamp_go_proto",
+        "@io_bazel_rules_go//proto/wkt:wrappers_go_proto",
+        "@org_golang_google_grpc//codes:go_default_library",
+        "@org_golang_google_grpc//metadata:go_default_library",
+        "@org_golang_google_grpc//status:go_default_library",
+    ],
+)

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/context.go

@@ -0,0 +1,291 @@
+package runtime
+
+import (
+	"context"
+	"encoding/base64"
+	"fmt"
+	"net"
+	"net/http"
+	"net/textproto"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+)
+
+// MetadataHeaderPrefix is the http prefix that represents custom metadata
+// parameters to or from a gRPC call.
+const MetadataHeaderPrefix = "Grpc-Metadata-"
+
+// MetadataPrefix is prepended to permanent HTTP header keys (as specified
+// by the IANA) when added to the gRPC context.
+const MetadataPrefix = "grpcgateway-"
+
+// MetadataTrailerPrefix is prepended to gRPC metadata as it is converted to
+// HTTP headers in a response handled by grpc-gateway
+const MetadataTrailerPrefix = "Grpc-Trailer-"
+
+const metadataGrpcTimeout = "Grpc-Timeout"
+const metadataHeaderBinarySuffix = "-Bin"
+
+const xForwardedFor = "X-Forwarded-For"
+const xForwardedHost = "X-Forwarded-Host"
+
+var (
+	// DefaultContextTimeout is used for gRPC call context.WithTimeout whenever a Grpc-Timeout inbound
+	// header isn't present. If the value is 0 the sent `context` will not have a timeout.
+	DefaultContextTimeout = 0 * time.Second
+)
+
+func decodeBinHeader(v string) ([]byte, error) {
+	if len(v)%4 == 0 {
+		// Input was padded, or padding was not necessary.
+		return base64.StdEncoding.DecodeString(v)
+	}
+	return base64.RawStdEncoding.DecodeString(v)
+}
+
+/*
+AnnotateContext adds context information such as metadata from the request.
+
+At a minimum, the RemoteAddr is included in the fashion of "X-Forwarded-For",
+except that the forwarded destination is not another HTTP service but rather
+a gRPC service.
+*/
+func AnnotateContext(ctx context.Context, mux *ServeMux, req *http.Request) (context.Context, error) {
+	ctx, md, err := annotateContext(ctx, mux, req)
+	if err != nil {
+		return nil, err
+	}
+	if md == nil {
+		return ctx, nil
+	}
+
+	return metadata.NewOutgoingContext(ctx, md), nil
+}
+
+// AnnotateIncomingContext adds context information such as metadata from the request.
+// Attach metadata as incoming context.
+func AnnotateIncomingContext(ctx context.Context, mux *ServeMux, req *http.Request) (context.Context, error) {
+	ctx, md, err := annotateContext(ctx, mux, req)
+	if err != nil {
+		return nil, err
+	}
+	if md == nil {
+		return ctx, nil
+	}
+
+	return metadata.NewIncomingContext(ctx, md), nil
+}
+
+func annotateContext(ctx context.Context, mux *ServeMux, req *http.Request) (context.Context, metadata.MD, error) {
+	var pairs []string
+	timeout := DefaultContextTimeout
+	if tm := req.Header.Get(metadataGrpcTimeout); tm != "" {
+		var err error
+		timeout, err = timeoutDecode(tm)
+		if err != nil {
+			return nil, nil, status.Errorf(codes.InvalidArgument, "invalid grpc-timeout: %s", tm)
+		}
+	}
+
+	for key, vals := range req.Header {
+		key = textproto.CanonicalMIMEHeaderKey(key)
+		for _, val := range vals {
+			// For backwards-compatibility, pass through 'authorization' header with no prefix.
+			if key == "Authorization" {
+				pairs = append(pairs, "authorization", val)
+			}
+			if h, ok := mux.incomingHeaderMatcher(key); ok {
+				// Handles "-bin" metadata in grpc, since grpc will do another base64
+				// encode before sending to server, we need to decode it first.
+				if strings.HasSuffix(key, metadataHeaderBinarySuffix) {
+					b, err := decodeBinHeader(val)
+					if err != nil {
+						return nil, nil, status.Errorf(codes.InvalidArgument, "invalid binary header %s: %s", key, err)
+					}
+
+					val = string(b)
+				}
+				pairs = append(pairs, h, val)
+			}
+		}
+	}
+	if host := req.Header.Get(xForwardedHost); host != "" {
+		pairs = append(pairs, strings.ToLower(xForwardedHost), host)
+	} else if req.Host != "" {
+		pairs = append(pairs, strings.ToLower(xForwardedHost), req.Host)
+	}
+
+	if addr := req.RemoteAddr; addr != "" {
+		if remoteIP, _, err := net.SplitHostPort(addr); err == nil {
+			if fwd := req.Header.Get(xForwardedFor); fwd == "" {
+				pairs = append(pairs, strings.ToLower(xForwardedFor), remoteIP)
+			} else {
+				pairs = append(pairs, strings.ToLower(xForwardedFor), fmt.Sprintf("%s, %s", fwd, remoteIP))
+			}
+		}
+	}
+
+	if timeout != 0 {
+		ctx, _ = context.WithTimeout(ctx, timeout)
+	}
+	if len(pairs) == 0 {
+		return ctx, nil, nil
+	}
+	md := metadata.Pairs(pairs...)
+	for _, mda := range mux.metadataAnnotators {
+		md = metadata.Join(md, mda(ctx, req))
+	}
+	return ctx, md, nil
+}
+
+// ServerMetadata consists of metadata sent from gRPC server.
+type ServerMetadata struct {
+	HeaderMD  metadata.MD
+	TrailerMD metadata.MD
+}
+
+type serverMetadataKey struct{}
+
+// NewServerMetadataContext creates a new context with ServerMetadata
+func NewServerMetadataContext(ctx context.Context, md ServerMetadata) context.Context {
+	return context.WithValue(ctx, serverMetadataKey{}, md)
+}
+
+// ServerMetadataFromContext returns the ServerMetadata in ctx
+func ServerMetadataFromContext(ctx context.Context) (md ServerMetadata, ok bool) {
+	md, ok = ctx.Value(serverMetadataKey{}).(ServerMetadata)
+	return
+}
+
+// ServerTransportStream implements grpc.ServerTransportStream.
+// It should only be used by the generated files to support grpc.SendHeader
+// outside of gRPC server use.
+type ServerTransportStream struct {
+	mu      sync.Mutex
+	header  metadata.MD
+	trailer metadata.MD
+}
+
+// Method returns the method for the stream.
+func (s *ServerTransportStream) Method() string {
+	return ""
+}
+
+// Header returns the header metadata of the stream.
+func (s *ServerTransportStream) Header() metadata.MD {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	return s.header.Copy()
+}
+
+// SetHeader sets the header metadata.
+func (s *ServerTransportStream) SetHeader(md metadata.MD) error {
+	if md.Len() == 0 {
+		return nil
+	}
+
+	s.mu.Lock()
+	s.header = metadata.Join(s.header, md)
+	s.mu.Unlock()
+	return nil
+}
+
+// SendHeader sets the header metadata.
+func (s *ServerTransportStream) SendHeader(md metadata.MD) error {
+	return s.SetHeader(md)
+}
+
+// Trailer returns the cached trailer metadata.
+func (s *ServerTransportStream) Trailer() metadata.MD {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	return s.trailer.Copy()
+}
+
+// SetTrailer sets the trailer metadata.
+func (s *ServerTransportStream) SetTrailer(md metadata.MD) error {
+	if md.Len() == 0 {
+		return nil
+	}
+
+	s.mu.Lock()
+	s.trailer = metadata.Join(s.trailer, md)
+	s.mu.Unlock()
+	return nil
+}
+
+func timeoutDecode(s string) (time.Duration, error) {
+	size := len(s)
+	if size < 2 {
+		return 0, fmt.Errorf("timeout string is too short: %q", s)
+	}
+	d, ok := timeoutUnitToDuration(s[size-1])
+	if !ok {
+		return 0, fmt.Errorf("timeout unit is not recognized: %q", s)
+	}
+	t, err := strconv.ParseInt(s[:size-1], 10, 64)
+	if err != nil {
+		return 0, err
+	}
+	return d * time.Duration(t), nil
+}
+
+func timeoutUnitToDuration(u uint8) (d time.Duration, ok bool) {
+	switch u {
+	case 'H':
+		return time.Hour, true
+	case 'M':
+		return time.Minute, true
+	case 'S':
+		return time.Second, true
+	case 'm':
+		return time.Millisecond, true
+	case 'u':
+		return time.Microsecond, true
+	case 'n':
+		return time.Nanosecond, true
+	default:
+	}
+	return
+}
+
+// isPermanentHTTPHeader checks whether hdr belongs to the list of
+// permanent request headers maintained by IANA.
+// http://www.iana.org/assignments/message-headers/message-headers.xml
+func isPermanentHTTPHeader(hdr string) bool {
+	switch hdr {
+	case
+		"Accept",
+		"Accept-Charset",
+		"Accept-Language",
+		"Accept-Ranges",
+		"Authorization",
+		"Cache-Control",
+		"Content-Type",
+		"Cookie",
+		"Date",
+		"Expect",
+		"From",
+		"Host",
+		"If-Match",
+		"If-Modified-Since",
+		"If-None-Match",
+		"If-Schedule-Tag-Match",
+		"If-Unmodified-Since",
+		"Max-Forwards",
+		"Origin",
+		"Pragma",
+		"Referer",
+		"User-Agent",
+		"Via",
+		"Warning":
+		return true
+	}
+	return false
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/convert.go

@@ -0,0 +1,318 @@
+package runtime
+
+import (
+	"encoding/base64"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/golang/protobuf/jsonpb"
+	"github.com/golang/protobuf/ptypes/duration"
+	"github.com/golang/protobuf/ptypes/timestamp"
+	"github.com/golang/protobuf/ptypes/wrappers"
+)
+
+// String just returns the given string.
+// It is just for compatibility to other types.
+func String(val string) (string, error) {
+	return val, nil
+}
+
+// StringSlice converts 'val' where individual strings are separated by
+// 'sep' into a string slice.
+func StringSlice(val, sep string) ([]string, error) {
+	return strings.Split(val, sep), nil
+}
+
+// Bool converts the given string representation of a boolean value into bool.
+func Bool(val string) (bool, error) {
+	return strconv.ParseBool(val)
+}
+
+// BoolSlice converts 'val' where individual booleans are separated by
+// 'sep' into a bool slice.
+func BoolSlice(val, sep string) ([]bool, error) {
+	s := strings.Split(val, sep)
+	values := make([]bool, len(s))
+	for i, v := range s {
+		value, err := Bool(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Float64 converts the given string representation into representation of a floating point number into float64.
+func Float64(val string) (float64, error) {
+	return strconv.ParseFloat(val, 64)
+}
+
+// Float64Slice converts 'val' where individual floating point numbers are separated by
+// 'sep' into a float64 slice.
+func Float64Slice(val, sep string) ([]float64, error) {
+	s := strings.Split(val, sep)
+	values := make([]float64, len(s))
+	for i, v := range s {
+		value, err := Float64(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Float32 converts the given string representation of a floating point number into float32.
+func Float32(val string) (float32, error) {
+	f, err := strconv.ParseFloat(val, 32)
+	if err != nil {
+		return 0, err
+	}
+	return float32(f), nil
+}
+
+// Float32Slice converts 'val' where individual floating point numbers are separated by
+// 'sep' into a float32 slice.
+func Float32Slice(val, sep string) ([]float32, error) {
+	s := strings.Split(val, sep)
+	values := make([]float32, len(s))
+	for i, v := range s {
+		value, err := Float32(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Int64 converts the given string representation of an integer into int64.
+func Int64(val string) (int64, error) {
+	return strconv.ParseInt(val, 0, 64)
+}
+
+// Int64Slice converts 'val' where individual integers are separated by
+// 'sep' into a int64 slice.
+func Int64Slice(val, sep string) ([]int64, error) {
+	s := strings.Split(val, sep)
+	values := make([]int64, len(s))
+	for i, v := range s {
+		value, err := Int64(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Int32 converts the given string representation of an integer into int32.
+func Int32(val string) (int32, error) {
+	i, err := strconv.ParseInt(val, 0, 32)
+	if err != nil {
+		return 0, err
+	}
+	return int32(i), nil
+}
+
+// Int32Slice converts 'val' where individual integers are separated by
+// 'sep' into a int32 slice.
+func Int32Slice(val, sep string) ([]int32, error) {
+	s := strings.Split(val, sep)
+	values := make([]int32, len(s))
+	for i, v := range s {
+		value, err := Int32(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Uint64 converts the given string representation of an integer into uint64.
+func Uint64(val string) (uint64, error) {
+	return strconv.ParseUint(val, 0, 64)
+}
+
+// Uint64Slice converts 'val' where individual integers are separated by
+// 'sep' into a uint64 slice.
+func Uint64Slice(val, sep string) ([]uint64, error) {
+	s := strings.Split(val, sep)
+	values := make([]uint64, len(s))
+	for i, v := range s {
+		value, err := Uint64(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Uint32 converts the given string representation of an integer into uint32.
+func Uint32(val string) (uint32, error) {
+	i, err := strconv.ParseUint(val, 0, 32)
+	if err != nil {
+		return 0, err
+	}
+	return uint32(i), nil
+}
+
+// Uint32Slice converts 'val' where individual integers are separated by
+// 'sep' into a uint32 slice.
+func Uint32Slice(val, sep string) ([]uint32, error) {
+	s := strings.Split(val, sep)
+	values := make([]uint32, len(s))
+	for i, v := range s {
+		value, err := Uint32(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Bytes converts the given string representation of a byte sequence into a slice of bytes
+// A bytes sequence is encoded in URL-safe base64 without padding
+func Bytes(val string) ([]byte, error) {
+	b, err := base64.StdEncoding.DecodeString(val)
+	if err != nil {
+		b, err = base64.URLEncoding.DecodeString(val)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return b, nil
+}
+
+// BytesSlice converts 'val' where individual bytes sequences, encoded in URL-safe
+// base64 without padding, are separated by 'sep' into a slice of bytes slices slice.
+func BytesSlice(val, sep string) ([][]byte, error) {
+	s := strings.Split(val, sep)
+	values := make([][]byte, len(s))
+	for i, v := range s {
+		value, err := Bytes(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Timestamp converts the given RFC3339 formatted string into a timestamp.Timestamp.
+func Timestamp(val string) (*timestamp.Timestamp, error) {
+	var r timestamp.Timestamp
+	err := jsonpb.UnmarshalString(val, &r)
+	if err != nil {
+		return nil, err
+	}
+	return &r, nil
+}
+
+// Duration converts the given string into a timestamp.Duration.
+func Duration(val string) (*duration.Duration, error) {
+	var r duration.Duration
+	err := jsonpb.UnmarshalString(val, &r)
+	if err != nil {
+		return nil, err
+	}
+	return &r, nil
+}
+
+// Enum converts the given string into an int32 that should be type casted into the
+// correct enum proto type.
+func Enum(val string, enumValMap map[string]int32) (int32, error) {
+	e, ok := enumValMap[val]
+	if ok {
+		return e, nil
+	}
+
+	i, err := Int32(val)
+	if err != nil {
+		return 0, fmt.Errorf("%s is not valid", val)
+	}
+	for _, v := range enumValMap {
+		if v == i {
+			return i, nil
+		}
+	}
+	return 0, fmt.Errorf("%s is not valid", val)
+}
+
+// EnumSlice converts 'val' where individual enums are separated by 'sep'
+// into a int32 slice. Each individual int32 should be type casted into the
+// correct enum proto type.
+func EnumSlice(val, sep string, enumValMap map[string]int32) ([]int32, error) {
+	s := strings.Split(val, sep)
+	values := make([]int32, len(s))
+	for i, v := range s {
+		value, err := Enum(v, enumValMap)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+/*
+	Support fot google.protobuf.wrappers on top of primitive types
+*/
+
+// StringValue well-known type support as wrapper around string type
+func StringValue(val string) (*wrappers.StringValue, error) {
+	return &wrappers.StringValue{Value: val}, nil
+}
+
+// FloatValue well-known type support as wrapper around float32 type
+func FloatValue(val string) (*wrappers.FloatValue, error) {
+	parsedVal, err := Float32(val)
+	return &wrappers.FloatValue{Value: parsedVal}, err
+}
+
+// DoubleValue well-known type support as wrapper around float64 type
+func DoubleValue(val string) (*wrappers.DoubleValue, error) {
+	parsedVal, err := Float64(val)
+	return &wrappers.DoubleValue{Value: parsedVal}, err
+}
+
+// BoolValue well-known type support as wrapper around bool type
+func BoolValue(val string) (*wrappers.BoolValue, error) {
+	parsedVal, err := Bool(val)
+	return &wrappers.BoolValue{Value: parsedVal}, err
+}
+
+// Int32Value well-known type support as wrapper around int32 type
+func Int32Value(val string) (*wrappers.Int32Value, error) {
+	parsedVal, err := Int32(val)
+	return &wrappers.Int32Value{Value: parsedVal}, err
+}
+
+// UInt32Value well-known type support as wrapper around uint32 type
+func UInt32Value(val string) (*wrappers.UInt32Value, error) {
+	parsedVal, err := Uint32(val)
+	return &wrappers.UInt32Value{Value: parsedVal}, err
+}
+
+// Int64Value well-known type support as wrapper around int64 type
+func Int64Value(val string) (*wrappers.Int64Value, error) {
+	parsedVal, err := Int64(val)
+	return &wrappers.Int64Value{Value: parsedVal}, err
+}
+
+// UInt64Value well-known type support as wrapper around uint64 type
+func UInt64Value(val string) (*wrappers.UInt64Value, error) {
+	parsedVal, err := Uint64(val)
+	return &wrappers.UInt64Value{Value: parsedVal}, err
+}
+
+// BytesValue well-known type support as wrapper around bytes[] type
+func BytesValue(val string) (*wrappers.BytesValue, error) {
+	parsedVal, err := Bytes(val)
+	return &wrappers.BytesValue{Value: parsedVal}, err
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/doc.go

@@ -0,0 +1,5 @@
+/*
+Package runtime contains runtime helper functions used by
+servers which protoc-gen-grpc-gateway generates.
+*/
+package runtime

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/errors.go

@@ -0,0 +1,186 @@
+package runtime
+
+import (
+	"context"
+	"io"
+	"net/http"
+	"strings"
+
+	"github.com/grpc-ecosystem/grpc-gateway/internal"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/status"
+)
+
+// HTTPStatusFromCode converts a gRPC error code into the corresponding HTTP response status.
+// See: https://github.com/googleapis/googleapis/blob/master/google/rpc/code.proto
+func HTTPStatusFromCode(code codes.Code) int {
+	switch code {
+	case codes.OK:
+		return http.StatusOK
+	case codes.Canceled:
+		return http.StatusRequestTimeout
+	case codes.Unknown:
+		return http.StatusInternalServerError
+	case codes.InvalidArgument:
+		return http.StatusBadRequest
+	case codes.DeadlineExceeded:
+		return http.StatusGatewayTimeout
+	case codes.NotFound:
+		return http.StatusNotFound
+	case codes.AlreadyExists:
+		return http.StatusConflict
+	case codes.PermissionDenied:
+		return http.StatusForbidden
+	case codes.Unauthenticated:
+		return http.StatusUnauthorized
+	case codes.ResourceExhausted:
+		return http.StatusTooManyRequests
+	case codes.FailedPrecondition:
+		// Note, this deliberately doesn't translate to the similarly named '412 Precondition Failed' HTTP response status.
+		return http.StatusBadRequest
+	case codes.Aborted:
+		return http.StatusConflict
+	case codes.OutOfRange:
+		return http.StatusBadRequest
+	case codes.Unimplemented:
+		return http.StatusNotImplemented
+	case codes.Internal:
+		return http.StatusInternalServerError
+	case codes.Unavailable:
+		return http.StatusServiceUnavailable
+	case codes.DataLoss:
+		return http.StatusInternalServerError
+	}
+
+	grpclog.Infof("Unknown gRPC error code: %v", code)
+	return http.StatusInternalServerError
+}
+
+var (
+	// HTTPError replies to the request with an error.
+	//
+	// HTTPError is called:
+	//  - From generated per-endpoint gateway handler code, when calling the backend results in an error.
+	//  - From gateway runtime code, when forwarding the response message results in an error.
+	//
+	// The default value for HTTPError calls the custom error handler configured on the ServeMux via the
+	// WithProtoErrorHandler serve option if that option was used, calling GlobalHTTPErrorHandler otherwise.
+	//
+	// To customize the error handling of a particular ServeMux instance, use the WithProtoErrorHandler
+	// serve option.
+	//
+	// To customize the error format for all ServeMux instances not using the WithProtoErrorHandler serve
+	// option, set GlobalHTTPErrorHandler to a custom function.
+	//
+	// Setting this variable directly to customize error format is deprecated.
+	HTTPError = MuxOrGlobalHTTPError
+
+	// GlobalHTTPErrorHandler is the HTTPError handler for all ServeMux instances not using the
+	// WithProtoErrorHandler serve option.
+	//
+	// You can set a custom function to this variable to customize error format.
+	GlobalHTTPErrorHandler = DefaultHTTPError
+
+	// OtherErrorHandler handles gateway errors from parsing and routing client requests for all
+	// ServeMux instances not using the WithProtoErrorHandler serve option.
+	//
+	// It returns the following error codes: StatusMethodNotAllowed StatusNotFound StatusBadRequest
+	//
+	// To customize parsing and routing error handling of a particular ServeMux instance, use the
+	// WithProtoErrorHandler serve option.
+	//
+	// To customize parsing and routing error handling of all ServeMux instances not using the
+	// WithProtoErrorHandler serve option, set a custom function to this variable.
+	OtherErrorHandler = DefaultOtherErrorHandler
+)
+
+// MuxOrGlobalHTTPError uses the mux-configured error handler, falling back to GlobalErrorHandler.
+func MuxOrGlobalHTTPError(ctx context.Context, mux *ServeMux, marshaler Marshaler, w http.ResponseWriter, r *http.Request, err error) {
+	if mux.protoErrorHandler != nil {
+		mux.protoErrorHandler(ctx, mux, marshaler, w, r, err)
+	} else {
+		GlobalHTTPErrorHandler(ctx, mux, marshaler, w, r, err)
+	}
+}
+
+// DefaultHTTPError is the default implementation of HTTPError.
+// If "err" is an error from gRPC system, the function replies with the status code mapped by HTTPStatusFromCode.
+// If otherwise, it replies with http.StatusInternalServerError.
+//
+// The response body returned by this function is a JSON object,
+// which contains a member whose key is "error" and whose value is err.Error().
+func DefaultHTTPError(ctx context.Context, mux *ServeMux, marshaler Marshaler, w http.ResponseWriter, r *http.Request, err error) {
+	const fallback = `{"error": "failed to marshal error message"}`
+
+	s, ok := status.FromError(err)
+	if !ok {
+		s = status.New(codes.Unknown, err.Error())
+	}
+
+	w.Header().Del("Trailer")
+	w.Header().Del("Transfer-Encoding")
+
+	contentType := marshaler.ContentType()
+	// Check marshaler on run time in order to keep backwards compatibility
+	// An interface param needs to be added to the ContentType() function on
+	// the Marshal interface to be able to remove this check
+	if typeMarshaler, ok := marshaler.(contentTypeMarshaler); ok {
+		pb := s.Proto()
+		contentType = typeMarshaler.ContentTypeFromMessage(pb)
+	}
+	w.Header().Set("Content-Type", contentType)
+
+	body := &internal.Error{
+		Error:   s.Message(),
+		Message: s.Message(),
+		Code:    int32(s.Code()),
+		Details: s.Proto().GetDetails(),
+	}
+
+	buf, merr := marshaler.Marshal(body)
+	if merr != nil {
+		grpclog.Infof("Failed to marshal error message %q: %v", body, merr)
+		w.WriteHeader(http.StatusInternalServerError)
+		if _, err := io.WriteString(w, fallback); err != nil {
+			grpclog.Infof("Failed to write response: %v", err)
+		}
+		return
+	}
+
+	md, ok := ServerMetadataFromContext(ctx)
+	if !ok {
+		grpclog.Infof("Failed to extract ServerMetadata from context")
+	}
+
+	handleForwardResponseServerMetadata(w, mux, md)
+
+	// RFC 7230 https://tools.ietf.org/html/rfc7230#section-4.1.2
+	// Unless the request includes a TE header field indicating "trailers"
+	// is acceptable, as described in Section 4.3, a server SHOULD NOT
+	// generate trailer fields that it believes are necessary for the user
+	// agent to receive.
+	var wantsTrailers bool
+
+	if te := r.Header.Get("TE"); strings.Contains(strings.ToLower(te), "trailers") {
+		wantsTrailers = true
+		handleForwardResponseTrailerHeader(w, md)
+		w.Header().Set("Transfer-Encoding", "chunked")
+	}
+
+	st := HTTPStatusFromCode(s.Code())
+	w.WriteHeader(st)
+	if _, err := w.Write(buf); err != nil {
+		grpclog.Infof("Failed to write response: %v", err)
+	}
+
+	if wantsTrailers {
+		handleForwardResponseTrailer(w, md)
+	}
+}
+
+// DefaultOtherErrorHandler is the default implementation of OtherErrorHandler.
+// It simply writes a string representation of the given error into "w".
+func DefaultOtherErrorHandler(w http.ResponseWriter, _ *http.Request, msg string, code int) {
+	http.Error(w, msg, code)
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/fieldmask.go

@@ -0,0 +1,89 @@
+package runtime
+
+import (
+	"encoding/json"
+	"io"
+	"strings"
+
+	descriptor2 "github.com/golang/protobuf/descriptor"
+	"github.com/golang/protobuf/protoc-gen-go/descriptor"
+	"google.golang.org/genproto/protobuf/field_mask"
+)
+
+func translateName(name string, md *descriptor.DescriptorProto) (string, *descriptor.DescriptorProto) {
+	// TODO - should really gate this with a test that the marshaller has used json names
+	if md != nil {
+		for _, f := range md.Field {
+			if f.JsonName != nil && f.Name != nil && *f.JsonName == name {
+				var subType *descriptor.DescriptorProto
+
+				// If the field has a TypeName then we retrieve the nested type for translating the embedded message names.
+				if f.TypeName != nil {
+					typeSplit := strings.Split(*f.TypeName, ".")
+					typeName := typeSplit[len(typeSplit)-1]
+					for _, t := range md.NestedType {
+						if typeName == *t.Name {
+							subType = t
+						}
+					}
+				}
+				return *f.Name, subType
+			}
+		}
+	}
+	return name, nil
+}
+
+// FieldMaskFromRequestBody creates a FieldMask printing all complete paths from the JSON body.
+func FieldMaskFromRequestBody(r io.Reader, md *descriptor.DescriptorProto) (*field_mask.FieldMask, error) {
+	fm := &field_mask.FieldMask{}
+	var root interface{}
+	if err := json.NewDecoder(r).Decode(&root); err != nil {
+		if err == io.EOF {
+			return fm, nil
+		}
+		return nil, err
+	}
+
+	queue := []fieldMaskPathItem{{node: root, md: md}}
+	for len(queue) > 0 {
+		// dequeue an item
+		item := queue[0]
+		queue = queue[1:]
+
+		if m, ok := item.node.(map[string]interface{}); ok {
+			// if the item is an object, then enqueue all of its children
+			for k, v := range m {
+				protoName, subMd := translateName(k, item.md)
+				if subMsg, ok := v.(descriptor2.Message); ok {
+					_, subMd = descriptor2.ForMessage(subMsg)
+				}
+
+				var path string
+				if item.path == "" {
+					path = protoName
+				} else {
+					path = item.path + "." + protoName
+				}
+				queue = append(queue, fieldMaskPathItem{path: path, node: v, md: subMd})
+			}
+		} else if len(item.path) > 0 {
+			// otherwise, it's a leaf node so print its path
+			fm.Paths = append(fm.Paths, item.path)
+		}
+	}
+
+	return fm, nil
+}
+
+// fieldMaskPathItem stores a in-progress deconstruction of a path for a fieldmask
+type fieldMaskPathItem struct {
+	// the list of prior fields leading up to node connected by dots
+	path string
+
+	// a generic decoded json object the current item to inspect for further path extraction
+	node interface{}
+
+	// descriptor for parent message
+	md *descriptor.DescriptorProto
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/handler.go

@@ -0,0 +1,212 @@
+package runtime
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/textproto"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/grpc-ecosystem/grpc-gateway/internal"
+	"google.golang.org/grpc/grpclog"
+)
+
+var errEmptyResponse = errors.New("empty response")
+
+// ForwardResponseStream forwards the stream from gRPC server to REST client.
+func ForwardResponseStream(ctx context.Context, mux *ServeMux, marshaler Marshaler, w http.ResponseWriter, req *http.Request, recv func() (proto.Message, error), opts ...func(context.Context, http.ResponseWriter, proto.Message) error) {
+	f, ok := w.(http.Flusher)
+	if !ok {
+		grpclog.Infof("Flush not supported in %T", w)
+		http.Error(w, "unexpected type of web server", http.StatusInternalServerError)
+		return
+	}
+
+	md, ok := ServerMetadataFromContext(ctx)
+	if !ok {
+		grpclog.Infof("Failed to extract ServerMetadata from context")
+		http.Error(w, "unexpected error", http.StatusInternalServerError)
+		return
+	}
+	handleForwardResponseServerMetadata(w, mux, md)
+
+	w.Header().Set("Transfer-Encoding", "chunked")
+	w.Header().Set("Content-Type", marshaler.ContentType())
+	if err := handleForwardResponseOptions(ctx, w, nil, opts); err != nil {
+		HTTPError(ctx, mux, marshaler, w, req, err)
+		return
+	}
+
+	var delimiter []byte
+	if d, ok := marshaler.(Delimited); ok {
+		delimiter = d.Delimiter()
+	} else {
+		delimiter = []byte("\n")
+	}
+
+	var wroteHeader bool
+	for {
+		resp, err := recv()
+		if err == io.EOF {
+			return
+		}
+		if err != nil {
+			handleForwardResponseStreamError(ctx, wroteHeader, marshaler, w, req, mux, err)
+			return
+		}
+		if err := handleForwardResponseOptions(ctx, w, resp, opts); err != nil {
+			handleForwardResponseStreamError(ctx, wroteHeader, marshaler, w, req, mux, err)
+			return
+		}
+
+		var buf []byte
+		switch {
+		case resp == nil:
+			buf, err = marshaler.Marshal(errorChunk(streamError(ctx, mux.streamErrorHandler, errEmptyResponse)))
+		default:
+			result := map[string]interface{}{"result": resp}
+			if rb, ok := resp.(responseBody); ok {
+				result["result"] = rb.XXX_ResponseBody()
+			}
+
+			buf, err = marshaler.Marshal(result)
+		}
+
+		if err != nil {
+			grpclog.Infof("Failed to marshal response chunk: %v", err)
+			handleForwardResponseStreamError(ctx, wroteHeader, marshaler, w, req, mux, err)
+			return
+		}
+		if _, err = w.Write(buf); err != nil {
+			grpclog.Infof("Failed to send response chunk: %v", err)
+			return
+		}
+		wroteHeader = true
+		if _, err = w.Write(delimiter); err != nil {
+			grpclog.Infof("Failed to send delimiter chunk: %v", err)
+			return
+		}
+		f.Flush()
+	}
+}
+
+func handleForwardResponseServerMetadata(w http.ResponseWriter, mux *ServeMux, md ServerMetadata) {
+	for k, vs := range md.HeaderMD {
+		if h, ok := mux.outgoingHeaderMatcher(k); ok {
+			for _, v := range vs {
+				w.Header().Add(h, v)
+			}
+		}
+	}
+}
+
+func handleForwardResponseTrailerHeader(w http.ResponseWriter, md ServerMetadata) {
+	for k := range md.TrailerMD {
+		tKey := textproto.CanonicalMIMEHeaderKey(fmt.Sprintf("%s%s", MetadataTrailerPrefix, k))
+		w.Header().Add("Trailer", tKey)
+	}
+}
+
+func handleForwardResponseTrailer(w http.ResponseWriter, md ServerMetadata) {
+	for k, vs := range md.TrailerMD {
+		tKey := fmt.Sprintf("%s%s", MetadataTrailerPrefix, k)
+		for _, v := range vs {
+			w.Header().Add(tKey, v)
+		}
+	}
+}
+
+// responseBody interface contains method for getting field for marshaling to the response body
+// this method is generated for response struct from the value of `response_body` in the `google.api.HttpRule`
+type responseBody interface {
+	XXX_ResponseBody() interface{}
+}
+
+// ForwardResponseMessage forwards the message "resp" from gRPC server to REST client.
+func ForwardResponseMessage(ctx context.Context, mux *ServeMux, marshaler Marshaler, w http.ResponseWriter, req *http.Request, resp proto.Message, opts ...func(context.Context, http.ResponseWriter, proto.Message) error) {
+	md, ok := ServerMetadataFromContext(ctx)
+	if !ok {
+		grpclog.Infof("Failed to extract ServerMetadata from context")
+	}
+
+	handleForwardResponseServerMetadata(w, mux, md)
+	handleForwardResponseTrailerHeader(w, md)
+
+	contentType := marshaler.ContentType()
+	// Check marshaler on run time in order to keep backwards compatibility
+	// An interface param needs to be added to the ContentType() function on
+	// the Marshal interface to be able to remove this check
+	if typeMarshaler, ok := marshaler.(contentTypeMarshaler); ok {
+		contentType = typeMarshaler.ContentTypeFromMessage(resp)
+	}
+	w.Header().Set("Content-Type", contentType)
+
+	if err := handleForwardResponseOptions(ctx, w, resp, opts); err != nil {
+		HTTPError(ctx, mux, marshaler, w, req, err)
+		return
+	}
+	var buf []byte
+	var err error
+	if rb, ok := resp.(responseBody); ok {
+		buf, err = marshaler.Marshal(rb.XXX_ResponseBody())
+	} else {
+		buf, err = marshaler.Marshal(resp)
+	}
+	if err != nil {
+		grpclog.Infof("Marshal error: %v", err)
+		HTTPError(ctx, mux, marshaler, w, req, err)
+		return
+	}
+
+	if _, err = w.Write(buf); err != nil {
+		grpclog.Infof("Failed to write response: %v", err)
+	}
+
+	handleForwardResponseTrailer(w, md)
+}
+
+func handleForwardResponseOptions(ctx context.Context, w http.ResponseWriter, resp proto.Message, opts []func(context.Context, http.ResponseWriter, proto.Message) error) error {
+	if len(opts) == 0 {
+		return nil
+	}
+	for _, opt := range opts {
+		if err := opt(ctx, w, resp); err != nil {
+			grpclog.Infof("Error handling ForwardResponseOptions: %v", err)
+			return err
+		}
+	}
+	return nil
+}
+
+func handleForwardResponseStreamError(ctx context.Context, wroteHeader bool, marshaler Marshaler, w http.ResponseWriter, req *http.Request, mux *ServeMux, err error) {
+	serr := streamError(ctx, mux.streamErrorHandler, err)
+	if !wroteHeader {
+		w.WriteHeader(int(serr.HttpCode))
+	}
+	buf, merr := marshaler.Marshal(errorChunk(serr))
+	if merr != nil {
+		grpclog.Infof("Failed to marshal an error: %v", merr)
+		return
+	}
+	if _, werr := w.Write(buf); werr != nil {
+		grpclog.Infof("Failed to notify error to client: %v", werr)
+		return
+	}
+}
+
+// streamError returns the payload for the final message in a response stream
+// that represents the given err.
+func streamError(ctx context.Context, errHandler StreamErrorHandlerFunc, err error) *StreamError {
+	serr := errHandler(ctx, err)
+	if serr != nil {
+		return serr
+	}
+	// TODO: log about misbehaving stream error handler?
+	return DefaultHTTPStreamErrorHandler(ctx, err)
+}
+
+func errorChunk(err *StreamError) map[string]proto.Message {
+	return map[string]proto.Message{"error": (*internal.StreamError)(err)}
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_httpbodyproto.go

@@ -0,0 +1,43 @@
+package runtime
+
+import (
+	"google.golang.org/genproto/googleapis/api/httpbody"
+)
+
+// SetHTTPBodyMarshaler overwrite the default marshaler with the HTTPBodyMarshaler
+func SetHTTPBodyMarshaler(serveMux *ServeMux) {
+	serveMux.marshalers.mimeMap[MIMEWildcard] = &HTTPBodyMarshaler{
+		Marshaler: &JSONPb{OrigName: true},
+	}
+}
+
+// HTTPBodyMarshaler is a Marshaler which supports marshaling of a
+// google.api.HttpBody message as the full response body if it is
+// the actual message used as the response. If not, then this will
+// simply fallback to the Marshaler specified as its default Marshaler.
+type HTTPBodyMarshaler struct {
+	Marshaler
+}
+
+// ContentType implementation to keep backwards compatibility with marshal interface
+func (h *HTTPBodyMarshaler) ContentType() string {
+	return h.ContentTypeFromMessage(nil)
+}
+
+// ContentTypeFromMessage in case v is a google.api.HttpBody message it returns
+// its specified content type otherwise fall back to the default Marshaler.
+func (h *HTTPBodyMarshaler) ContentTypeFromMessage(v interface{}) string {
+	if httpBody, ok := v.(*httpbody.HttpBody); ok {
+		return httpBody.GetContentType()
+	}
+	return h.Marshaler.ContentType()
+}
+
+// Marshal marshals "v" by returning the body bytes if v is a
+// google.api.HttpBody message, otherwise it falls back to the default Marshaler.
+func (h *HTTPBodyMarshaler) Marshal(v interface{}) ([]byte, error) {
+	if httpBody, ok := v.(*httpbody.HttpBody); ok {
+		return httpBody.Data, nil
+	}
+	return h.Marshaler.Marshal(v)
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_json.go

@@ -0,0 +1,45 @@
+package runtime
+
+import (
+	"encoding/json"
+	"io"
+)
+
+// JSONBuiltin is a Marshaler which marshals/unmarshals into/from JSON
+// with the standard "encoding/json" package of Golang.
+// Although it is generally faster for simple proto messages than JSONPb,
+// it does not support advanced features of protobuf, e.g. map, oneof, ....
+//
+// The NewEncoder and NewDecoder types return *json.Encoder and
+// *json.Decoder respectively.
+type JSONBuiltin struct{}
+
+// ContentType always Returns "application/json".
+func (*JSONBuiltin) ContentType() string {
+	return "application/json"
+}
+
+// Marshal marshals "v" into JSON
+func (j *JSONBuiltin) Marshal(v interface{}) ([]byte, error) {
+	return json.Marshal(v)
+}
+
+// Unmarshal unmarshals JSON data into "v".
+func (j *JSONBuiltin) Unmarshal(data []byte, v interface{}) error {
+	return json.Unmarshal(data, v)
+}
+
+// NewDecoder returns a Decoder which reads JSON stream from "r".
+func (j *JSONBuiltin) NewDecoder(r io.Reader) Decoder {
+	return json.NewDecoder(r)
+}
+
+// NewEncoder returns an Encoder which writes JSON stream into "w".
+func (j *JSONBuiltin) NewEncoder(w io.Writer) Encoder {
+	return json.NewEncoder(w)
+}
+
+// Delimiter for newline encoded JSON streams.
+func (j *JSONBuiltin) Delimiter() []byte {
+	return []byte("\n")
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_jsonpb.go

@@ -0,0 +1,262 @@
+package runtime
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"reflect"
+
+	"github.com/golang/protobuf/jsonpb"
+	"github.com/golang/protobuf/proto"
+)
+
+// JSONPb is a Marshaler which marshals/unmarshals into/from JSON
+// with the "github.com/golang/protobuf/jsonpb".
+// It supports fully functionality of protobuf unlike JSONBuiltin.
+//
+// The NewDecoder method returns a DecoderWrapper, so the underlying
+// *json.Decoder methods can be used.
+type JSONPb jsonpb.Marshaler
+
+// ContentType always returns "application/json".
+func (*JSONPb) ContentType() string {
+	return "application/json"
+}
+
+// Marshal marshals "v" into JSON.
+func (j *JSONPb) Marshal(v interface{}) ([]byte, error) {
+	if _, ok := v.(proto.Message); !ok {
+		return j.marshalNonProtoField(v)
+	}
+
+	var buf bytes.Buffer
+	if err := j.marshalTo(&buf, v); err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
+func (j *JSONPb) marshalTo(w io.Writer, v interface{}) error {
+	p, ok := v.(proto.Message)
+	if !ok {
+		buf, err := j.marshalNonProtoField(v)
+		if err != nil {
+			return err
+		}
+		_, err = w.Write(buf)
+		return err
+	}
+	return (*jsonpb.Marshaler)(j).Marshal(w, p)
+}
+
+var (
+	// protoMessageType is stored to prevent constant lookup of the same type at runtime.
+	protoMessageType = reflect.TypeOf((*proto.Message)(nil)).Elem()
+)
+
+// marshalNonProto marshals a non-message field of a protobuf message.
+// This function does not correctly marshals arbitrary data structure into JSON,
+// but it is only capable of marshaling non-message field values of protobuf,
+// i.e. primitive types, enums; pointers to primitives or enums; maps from
+// integer/string types to primitives/enums/pointers to messages.
+func (j *JSONPb) marshalNonProtoField(v interface{}) ([]byte, error) {
+	if v == nil {
+		return []byte("null"), nil
+	}
+	rv := reflect.ValueOf(v)
+	for rv.Kind() == reflect.Ptr {
+		if rv.IsNil() {
+			return []byte("null"), nil
+		}
+		rv = rv.Elem()
+	}
+
+	if rv.Kind() == reflect.Slice {
+		if rv.IsNil() {
+			if j.EmitDefaults {
+				return []byte("[]"), nil
+			}
+			return []byte("null"), nil
+		}
+
+		if rv.Type().Elem().Implements(protoMessageType) {
+			var buf bytes.Buffer
+			err := buf.WriteByte('[')
+			if err != nil {
+				return nil, err
+			}
+			for i := 0; i < rv.Len(); i++ {
+				if i != 0 {
+					err = buf.WriteByte(',')
+					if err != nil {
+						return nil, err
+					}
+				}
+				if err = (*jsonpb.Marshaler)(j).Marshal(&buf, rv.Index(i).Interface().(proto.Message)); err != nil {
+					return nil, err
+				}
+			}
+			err = buf.WriteByte(']')
+			if err != nil {
+				return nil, err
+			}
+
+			return buf.Bytes(), nil
+		}
+	}
+
+	if rv.Kind() == reflect.Map {
+		m := make(map[string]*json.RawMessage)
+		for _, k := range rv.MapKeys() {
+			buf, err := j.Marshal(rv.MapIndex(k).Interface())
+			if err != nil {
+				return nil, err
+			}
+			m[fmt.Sprintf("%v", k.Interface())] = (*json.RawMessage)(&buf)
+		}
+		if j.Indent != "" {
+			return json.MarshalIndent(m, "", j.Indent)
+		}
+		return json.Marshal(m)
+	}
+	if enum, ok := rv.Interface().(protoEnum); ok && !j.EnumsAsInts {
+		return json.Marshal(enum.String())
+	}
+	return json.Marshal(rv.Interface())
+}
+
+// Unmarshal unmarshals JSON "data" into "v"
+func (j *JSONPb) Unmarshal(data []byte, v interface{}) error {
+	return unmarshalJSONPb(data, v)
+}
+
+// NewDecoder returns a Decoder which reads JSON stream from "r".
+func (j *JSONPb) NewDecoder(r io.Reader) Decoder {
+	d := json.NewDecoder(r)
+	return DecoderWrapper{Decoder: d}
+}
+
+// DecoderWrapper is a wrapper around a *json.Decoder that adds
+// support for protos to the Decode method.
+type DecoderWrapper struct {
+	*json.Decoder
+}
+
+// Decode wraps the embedded decoder's Decode method to support
+// protos using a jsonpb.Unmarshaler.
+func (d DecoderWrapper) Decode(v interface{}) error {
+	return decodeJSONPb(d.Decoder, v)
+}
+
+// NewEncoder returns an Encoder which writes JSON stream into "w".
+func (j *JSONPb) NewEncoder(w io.Writer) Encoder {
+	return EncoderFunc(func(v interface{}) error {
+		if err := j.marshalTo(w, v); err != nil {
+			return err
+		}
+		// mimic json.Encoder by adding a newline (makes output
+		// easier to read when it contains multiple encoded items)
+		_, err := w.Write(j.Delimiter())
+		return err
+	})
+}
+
+func unmarshalJSONPb(data []byte, v interface{}) error {
+	d := json.NewDecoder(bytes.NewReader(data))
+	return decodeJSONPb(d, v)
+}
+
+func decodeJSONPb(d *json.Decoder, v interface{}) error {
+	p, ok := v.(proto.Message)
+	if !ok {
+		return decodeNonProtoField(d, v)
+	}
+	unmarshaler := &jsonpb.Unmarshaler{AllowUnknownFields: allowUnknownFields}
+	return unmarshaler.UnmarshalNext(d, p)
+}
+
+func decodeNonProtoField(d *json.Decoder, v interface{}) error {
+	rv := reflect.ValueOf(v)
+	if rv.Kind() != reflect.Ptr {
+		return fmt.Errorf("%T is not a pointer", v)
+	}
+	for rv.Kind() == reflect.Ptr {
+		if rv.IsNil() {
+			rv.Set(reflect.New(rv.Type().Elem()))
+		}
+		if rv.Type().ConvertibleTo(typeProtoMessage) {
+			unmarshaler := &jsonpb.Unmarshaler{AllowUnknownFields: allowUnknownFields}
+			return unmarshaler.UnmarshalNext(d, rv.Interface().(proto.Message))
+		}
+		rv = rv.Elem()
+	}
+	if rv.Kind() == reflect.Map {
+		if rv.IsNil() {
+			rv.Set(reflect.MakeMap(rv.Type()))
+		}
+		conv, ok := convFromType[rv.Type().Key().Kind()]
+		if !ok {
+			return fmt.Errorf("unsupported type of map field key: %v", rv.Type().Key())
+		}
+
+		m := make(map[string]*json.RawMessage)
+		if err := d.Decode(&m); err != nil {
+			return err
+		}
+		for k, v := range m {
+			result := conv.Call([]reflect.Value{reflect.ValueOf(k)})
+			if err := result[1].Interface(); err != nil {
+				return err.(error)
+			}
+			bk := result[0]
+			bv := reflect.New(rv.Type().Elem())
+			if err := unmarshalJSONPb([]byte(*v), bv.Interface()); err != nil {
+				return err
+			}
+			rv.SetMapIndex(bk, bv.Elem())
+		}
+		return nil
+	}
+	if _, ok := rv.Interface().(protoEnum); ok {
+		var repr interface{}
+		if err := d.Decode(&repr); err != nil {
+			return err
+		}
+		switch repr.(type) {
+		case string:
+			// TODO(yugui) Should use proto.StructProperties?
+			return fmt.Errorf("unmarshaling of symbolic enum %q not supported: %T", repr, rv.Interface())
+		case float64:
+			rv.Set(reflect.ValueOf(int32(repr.(float64))).Convert(rv.Type()))
+			return nil
+		default:
+			return fmt.Errorf("cannot assign %#v into Go type %T", repr, rv.Interface())
+		}
+	}
+	return d.Decode(v)
+}
+
+type protoEnum interface {
+	fmt.Stringer
+	EnumDescriptor() ([]byte, []int)
+}
+
+var typeProtoMessage = reflect.TypeOf((*proto.Message)(nil)).Elem()
+
+// Delimiter for newline encoded JSON streams.
+func (j *JSONPb) Delimiter() []byte {
+	return []byte("\n")
+}
+
+// allowUnknownFields helps not to return an error when the destination
+// is a struct and the input contains object keys which do not match any
+// non-ignored, exported fields in the destination.
+var allowUnknownFields = true
+
+// DisallowUnknownFields enables option in decoder (unmarshaller) to
+// return an error when it finds an unknown field. This function must be
+// called before using the JSON marshaller.
+func DisallowUnknownFields() {
+	allowUnknownFields = false
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_proto.go

@@ -0,0 +1,62 @@
+package runtime
+
+import (
+	"io"
+
+	"errors"
+	"github.com/golang/protobuf/proto"
+	"io/ioutil"
+)
+
+// ProtoMarshaller is a Marshaller which marshals/unmarshals into/from serialize proto bytes
+type ProtoMarshaller struct{}
+
+// ContentType always returns "application/octet-stream".
+func (*ProtoMarshaller) ContentType() string {
+	return "application/octet-stream"
+}
+
+// Marshal marshals "value" into Proto
+func (*ProtoMarshaller) Marshal(value interface{}) ([]byte, error) {
+	message, ok := value.(proto.Message)
+	if !ok {
+		return nil, errors.New("unable to marshal non proto field")
+	}
+	return proto.Marshal(message)
+}
+
+// Unmarshal unmarshals proto "data" into "value"
+func (*ProtoMarshaller) Unmarshal(data []byte, value interface{}) error {
+	message, ok := value.(proto.Message)
+	if !ok {
+		return errors.New("unable to unmarshal non proto field")
+	}
+	return proto.Unmarshal(data, message)
+}
+
+// NewDecoder returns a Decoder which reads proto stream from "reader".
+func (marshaller *ProtoMarshaller) NewDecoder(reader io.Reader) Decoder {
+	return DecoderFunc(func(value interface{}) error {
+		buffer, err := ioutil.ReadAll(reader)
+		if err != nil {
+			return err
+		}
+		return marshaller.Unmarshal(buffer, value)
+	})
+}
+
+// NewEncoder returns an Encoder which writes proto stream into "writer".
+func (marshaller *ProtoMarshaller) NewEncoder(writer io.Writer) Encoder {
+	return EncoderFunc(func(value interface{}) error {
+		buffer, err := marshaller.Marshal(value)
+		if err != nil {
+			return err
+		}
+		_, err = writer.Write(buffer)
+		if err != nil {
+			return err
+		}
+
+		return nil
+	})
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshaler.go

@@ -0,0 +1,55 @@
+package runtime
+
+import (
+	"io"
+)
+
+// Marshaler defines a conversion between byte sequence and gRPC payloads / fields.
+type Marshaler interface {
+	// Marshal marshals "v" into byte sequence.
+	Marshal(v interface{}) ([]byte, error)
+	// Unmarshal unmarshals "data" into "v".
+	// "v" must be a pointer value.
+	Unmarshal(data []byte, v interface{}) error
+	// NewDecoder returns a Decoder which reads byte sequence from "r".
+	NewDecoder(r io.Reader) Decoder
+	// NewEncoder returns an Encoder which writes bytes sequence into "w".
+	NewEncoder(w io.Writer) Encoder
+	// ContentType returns the Content-Type which this marshaler is responsible for.
+	ContentType() string
+}
+
+// Marshalers that implement contentTypeMarshaler will have their ContentTypeFromMessage method called
+// to set the Content-Type header on the response
+type contentTypeMarshaler interface {
+	// ContentTypeFromMessage returns the Content-Type this marshaler produces from the provided message
+	ContentTypeFromMessage(v interface{}) string
+}
+
+// Decoder decodes a byte sequence
+type Decoder interface {
+	Decode(v interface{}) error
+}
+
+// Encoder encodes gRPC payloads / fields into byte sequence.
+type Encoder interface {
+	Encode(v interface{}) error
+}
+
+// DecoderFunc adapts an decoder function into Decoder.
+type DecoderFunc func(v interface{}) error
+
+// Decode delegates invocations to the underlying function itself.
+func (f DecoderFunc) Decode(v interface{}) error { return f(v) }
+
+// EncoderFunc adapts an encoder function into Encoder
+type EncoderFunc func(v interface{}) error
+
+// Encode delegates invocations to the underlying function itself.
+func (f EncoderFunc) Encode(v interface{}) error { return f(v) }
+
+// Delimited defines the streaming delimiter.
+type Delimited interface {
+	// Delimiter returns the record separator for the stream.
+	Delimiter() []byte
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshaler_registry.go

@@ -0,0 +1,99 @@
+package runtime
+
+import (
+	"errors"
+	"mime"
+	"net/http"
+
+	"google.golang.org/grpc/grpclog"
+)
+
+// MIMEWildcard is the fallback MIME type used for requests which do not match
+// a registered MIME type.
+const MIMEWildcard = "*"
+
+var (
+	acceptHeader      = http.CanonicalHeaderKey("Accept")
+	contentTypeHeader = http.CanonicalHeaderKey("Content-Type")
+
+	defaultMarshaler = &JSONPb{OrigName: true}
+)
+
+// MarshalerForRequest returns the inbound/outbound marshalers for this request.
+// It checks the registry on the ServeMux for the MIME type set by the Content-Type header.
+// If it isn't set (or the request Content-Type is empty), checks for "*".
+// If there are multiple Content-Type headers set, choose the first one that it can
+// exactly match in the registry.
+// Otherwise, it follows the above logic for "*"/InboundMarshaler/OutboundMarshaler.
+func MarshalerForRequest(mux *ServeMux, r *http.Request) (inbound Marshaler, outbound Marshaler) {
+	for _, acceptVal := range r.Header[acceptHeader] {
+		if m, ok := mux.marshalers.mimeMap[acceptVal]; ok {
+			outbound = m
+			break
+		}
+	}
+
+	for _, contentTypeVal := range r.Header[contentTypeHeader] {
+		contentType, _, err := mime.ParseMediaType(contentTypeVal)
+		if err != nil {
+			grpclog.Infof("Failed to parse Content-Type %s: %v", contentTypeVal, err)
+			continue
+		}
+		if m, ok := mux.marshalers.mimeMap[contentType]; ok {
+			inbound = m
+			break
+		}
+	}
+
+	if inbound == nil {
+		inbound = mux.marshalers.mimeMap[MIMEWildcard]
+	}
+	if outbound == nil {
+		outbound = inbound
+	}
+
+	return inbound, outbound
+}
+
+// marshalerRegistry is a mapping from MIME types to Marshalers.
+type marshalerRegistry struct {
+	mimeMap map[string]Marshaler
+}
+
+// add adds a marshaler for a case-sensitive MIME type string ("*" to match any
+// MIME type).
+func (m marshalerRegistry) add(mime string, marshaler Marshaler) error {
+	if len(mime) == 0 {
+		return errors.New("empty MIME type")
+	}
+
+	m.mimeMap[mime] = marshaler
+
+	return nil
+}
+
+// makeMarshalerMIMERegistry returns a new registry of marshalers.
+// It allows for a mapping of case-sensitive Content-Type MIME type string to runtime.Marshaler interfaces.
+//
+// For example, you could allow the client to specify the use of the runtime.JSONPb marshaler
+// with a "application/jsonpb" Content-Type and the use of the runtime.JSONBuiltin marshaler
+// with a "application/json" Content-Type.
+// "*" can be used to match any Content-Type.
+// This can be attached to a ServerMux with the marshaler option.
+func makeMarshalerMIMERegistry() marshalerRegistry {
+	return marshalerRegistry{
+		mimeMap: map[string]Marshaler{
+			MIMEWildcard: defaultMarshaler,
+		},
+	}
+}
+
+// WithMarshalerOption returns a ServeMuxOption which associates inbound and outbound
+// Marshalers to a MIME type in mux.
+func WithMarshalerOption(mime string, marshaler Marshaler) ServeMuxOption {
+	return func(mux *ServeMux) {
+		if err := mux.marshalers.add(mime, marshaler); err != nil {
+			panic(err)
+		}
+	}
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/mux.go

@@ -0,0 +1,300 @@
+package runtime
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"net/textproto"
+	"strings"
+
+	"github.com/golang/protobuf/proto"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+)
+
+// A HandlerFunc handles a specific pair of path pattern and HTTP method.
+type HandlerFunc func(w http.ResponseWriter, r *http.Request, pathParams map[string]string)
+
+// ErrUnknownURI is the error supplied to a custom ProtoErrorHandlerFunc when
+// a request is received with a URI path that does not match any registered
+// service method.
+//
+// Since gRPC servers return an "Unimplemented" code for requests with an
+// unrecognized URI path, this error also has a gRPC "Unimplemented" code.
+var ErrUnknownURI = status.Error(codes.Unimplemented, http.StatusText(http.StatusNotImplemented))
+
+// ServeMux is a request multiplexer for grpc-gateway.
+// It matches http requests to patterns and invokes the corresponding handler.
+type ServeMux struct {
+	// handlers maps HTTP method to a list of handlers.
+	handlers                  map[string][]handler
+	forwardResponseOptions    []func(context.Context, http.ResponseWriter, proto.Message) error
+	marshalers                marshalerRegistry
+	incomingHeaderMatcher     HeaderMatcherFunc
+	outgoingHeaderMatcher     HeaderMatcherFunc
+	metadataAnnotators        []func(context.Context, *http.Request) metadata.MD
+	streamErrorHandler        StreamErrorHandlerFunc
+	protoErrorHandler         ProtoErrorHandlerFunc
+	disablePathLengthFallback bool
+	lastMatchWins             bool
+}
+
+// ServeMuxOption is an option that can be given to a ServeMux on construction.
+type ServeMuxOption func(*ServeMux)
+
+// WithForwardResponseOption returns a ServeMuxOption representing the forwardResponseOption.
+//
+// forwardResponseOption is an option that will be called on the relevant context.Context,
+// http.ResponseWriter, and proto.Message before every forwarded response.
+//
+// The message may be nil in the case where just a header is being sent.
+func WithForwardResponseOption(forwardResponseOption func(context.Context, http.ResponseWriter, proto.Message) error) ServeMuxOption {
+	return func(serveMux *ServeMux) {
+		serveMux.forwardResponseOptions = append(serveMux.forwardResponseOptions, forwardResponseOption)
+	}
+}
+
+// SetQueryParameterParser sets the query parameter parser, used to populate message from query parameters.
+// Configuring this will mean the generated swagger output is no longer correct, and it should be
+// done with careful consideration.
+func SetQueryParameterParser(queryParameterParser QueryParameterParser) ServeMuxOption {
+	return func(serveMux *ServeMux) {
+		currentQueryParser = queryParameterParser
+	}
+}
+
+// HeaderMatcherFunc checks whether a header key should be forwarded to/from gRPC context.
+type HeaderMatcherFunc func(string) (string, bool)
+
+// DefaultHeaderMatcher is used to pass http request headers to/from gRPC context. This adds permanent HTTP header
+// keys (as specified by the IANA) to gRPC context with grpcgateway- prefix. HTTP headers that start with
+// 'Grpc-Metadata-' are mapped to gRPC metadata after removing prefix 'Grpc-Metadata-'.
+func DefaultHeaderMatcher(key string) (string, bool) {
+	key = textproto.CanonicalMIMEHeaderKey(key)
+	if isPermanentHTTPHeader(key) {
+		return MetadataPrefix + key, true
+	} else if strings.HasPrefix(key, MetadataHeaderPrefix) {
+		return key[len(MetadataHeaderPrefix):], true
+	}
+	return "", false
+}
+
+// WithIncomingHeaderMatcher returns a ServeMuxOption representing a headerMatcher for incoming request to gateway.
+//
+// This matcher will be called with each header in http.Request. If matcher returns true, that header will be
+// passed to gRPC context. To transform the header before passing to gRPC context, matcher should return modified header.
+func WithIncomingHeaderMatcher(fn HeaderMatcherFunc) ServeMuxOption {
+	return func(mux *ServeMux) {
+		mux.incomingHeaderMatcher = fn
+	}
+}
+
+// WithOutgoingHeaderMatcher returns a ServeMuxOption representing a headerMatcher for outgoing response from gateway.
+//
+// This matcher will be called with each header in response header metadata. If matcher returns true, that header will be
+// passed to http response returned from gateway. To transform the header before passing to response,
+// matcher should return modified header.
+func WithOutgoingHeaderMatcher(fn HeaderMatcherFunc) ServeMuxOption {
+	return func(mux *ServeMux) {
+		mux.outgoingHeaderMatcher = fn
+	}
+}
+
+// WithMetadata returns a ServeMuxOption for passing metadata to a gRPC context.
+//
+// This can be used by services that need to read from http.Request and modify gRPC context. A common use case
+// is reading token from cookie and adding it in gRPC context.
+func WithMetadata(annotator func(context.Context, *http.Request) metadata.MD) ServeMuxOption {
+	return func(serveMux *ServeMux) {
+		serveMux.metadataAnnotators = append(serveMux.metadataAnnotators, annotator)
+	}
+}
+
+// WithProtoErrorHandler returns a ServeMuxOption for configuring a custom error handler.
+//
+// This can be used to handle an error as general proto message defined by gRPC.
+// When this option is used, the mux uses the configured error handler instead of HTTPError and
+// OtherErrorHandler.
+func WithProtoErrorHandler(fn ProtoErrorHandlerFunc) ServeMuxOption {
+	return func(serveMux *ServeMux) {
+		serveMux.protoErrorHandler = fn
+	}
+}
+
+// WithDisablePathLengthFallback returns a ServeMuxOption for disable path length fallback.
+func WithDisablePathLengthFallback() ServeMuxOption {
+	return func(serveMux *ServeMux) {
+		serveMux.disablePathLengthFallback = true
+	}
+}
+
+// WithStreamErrorHandler returns a ServeMuxOption that will use the given custom stream
+// error handler, which allows for customizing the error trailer for server-streaming
+// calls.
+//
+// For stream errors that occur before any response has been written, the mux's
+// ProtoErrorHandler will be invoked. However, once data has been written, the errors must
+// be handled differently: they must be included in the response body. The response body's
+// final message will include the error details returned by the stream error handler.
+func WithStreamErrorHandler(fn StreamErrorHandlerFunc) ServeMuxOption {
+	return func(serveMux *ServeMux) {
+		serveMux.streamErrorHandler = fn
+	}
+}
+
+// WithLastMatchWins returns a ServeMuxOption that will enable "last
+// match wins" behavior, where if multiple path patterns match a
+// request path, the last one defined in the .proto file will be used.
+func WithLastMatchWins() ServeMuxOption {
+	return func(serveMux *ServeMux) {
+		serveMux.lastMatchWins = true
+	}
+}
+
+// NewServeMux returns a new ServeMux whose internal mapping is empty.
+func NewServeMux(opts ...ServeMuxOption) *ServeMux {
+	serveMux := &ServeMux{
+		handlers:               make(map[string][]handler),
+		forwardResponseOptions: make([]func(context.Context, http.ResponseWriter, proto.Message) error, 0),
+		marshalers:             makeMarshalerMIMERegistry(),
+		streamErrorHandler:     DefaultHTTPStreamErrorHandler,
+	}
+
+	for _, opt := range opts {
+		opt(serveMux)
+	}
+
+	if serveMux.incomingHeaderMatcher == nil {
+		serveMux.incomingHeaderMatcher = DefaultHeaderMatcher
+	}
+
+	if serveMux.outgoingHeaderMatcher == nil {
+		serveMux.outgoingHeaderMatcher = func(key string) (string, bool) {
+			return fmt.Sprintf("%s%s", MetadataHeaderPrefix, key), true
+		}
+	}
+
+	return serveMux
+}
+
+// Handle associates "h" to the pair of HTTP method and path pattern.
+func (s *ServeMux) Handle(meth string, pat Pattern, h HandlerFunc) {
+	if s.lastMatchWins {
+		s.handlers[meth] = append([]handler{handler{pat: pat, h: h}}, s.handlers[meth]...)
+	} else {
+		s.handlers[meth] = append(s.handlers[meth], handler{pat: pat, h: h})
+	}
+}
+
+// ServeHTTP dispatches the request to the first handler whose pattern matches to r.Method and r.Path.
+func (s *ServeMux) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+
+	path := r.URL.Path
+	if !strings.HasPrefix(path, "/") {
+		if s.protoErrorHandler != nil {
+			_, outboundMarshaler := MarshalerForRequest(s, r)
+			sterr := status.Error(codes.InvalidArgument, http.StatusText(http.StatusBadRequest))
+			s.protoErrorHandler(ctx, s, outboundMarshaler, w, r, sterr)
+		} else {
+			OtherErrorHandler(w, r, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
+		}
+		return
+	}
+
+	components := strings.Split(path[1:], "/")
+	l := len(components)
+	var verb string
+	if idx := strings.LastIndex(components[l-1], ":"); idx == 0 {
+		if s.protoErrorHandler != nil {
+			_, outboundMarshaler := MarshalerForRequest(s, r)
+			s.protoErrorHandler(ctx, s, outboundMarshaler, w, r, ErrUnknownURI)
+		} else {
+			OtherErrorHandler(w, r, http.StatusText(http.StatusNotFound), http.StatusNotFound)
+		}
+		return
+	} else if idx > 0 {
+		c := components[l-1]
+		components[l-1], verb = c[:idx], c[idx+1:]
+	}
+
+	if override := r.Header.Get("X-HTTP-Method-Override"); override != "" && s.isPathLengthFallback(r) {
+		r.Method = strings.ToUpper(override)
+		if err := r.ParseForm(); err != nil {
+			if s.protoErrorHandler != nil {
+				_, outboundMarshaler := MarshalerForRequest(s, r)
+				sterr := status.Error(codes.InvalidArgument, err.Error())
+				s.protoErrorHandler(ctx, s, outboundMarshaler, w, r, sterr)
+			} else {
+				OtherErrorHandler(w, r, err.Error(), http.StatusBadRequest)
+			}
+			return
+		}
+	}
+	for _, h := range s.handlers[r.Method] {
+		pathParams, err := h.pat.Match(components, verb)
+		if err != nil {
+			continue
+		}
+		h.h(w, r, pathParams)
+		return
+	}
+
+	// lookup other methods to handle fallback from GET to POST and
+	// to determine if it is MethodNotAllowed or NotFound.
+	for m, handlers := range s.handlers {
+		if m == r.Method {
+			continue
+		}
+		for _, h := range handlers {
+			pathParams, err := h.pat.Match(components, verb)
+			if err != nil {
+				continue
+			}
+			// X-HTTP-Method-Override is optional. Always allow fallback to POST.
+			if s.isPathLengthFallback(r) {
+				if err := r.ParseForm(); err != nil {
+					if s.protoErrorHandler != nil {
+						_, outboundMarshaler := MarshalerForRequest(s, r)
+						sterr := status.Error(codes.InvalidArgument, err.Error())
+						s.protoErrorHandler(ctx, s, outboundMarshaler, w, r, sterr)
+					} else {
+						OtherErrorHandler(w, r, err.Error(), http.StatusBadRequest)
+					}
+					return
+				}
+				h.h(w, r, pathParams)
+				return
+			}
+			if s.protoErrorHandler != nil {
+				_, outboundMarshaler := MarshalerForRequest(s, r)
+				s.protoErrorHandler(ctx, s, outboundMarshaler, w, r, ErrUnknownURI)
+			} else {
+				OtherErrorHandler(w, r, http.StatusText(http.StatusMethodNotAllowed), http.StatusMethodNotAllowed)
+			}
+			return
+		}
+	}
+
+	if s.protoErrorHandler != nil {
+		_, outboundMarshaler := MarshalerForRequest(s, r)
+		s.protoErrorHandler(ctx, s, outboundMarshaler, w, r, ErrUnknownURI)
+	} else {
+		OtherErrorHandler(w, r, http.StatusText(http.StatusNotFound), http.StatusNotFound)
+	}
+}
+
+// GetForwardResponseOptions returns the ForwardResponseOptions associated with this ServeMux.
+func (s *ServeMux) GetForwardResponseOptions() []func(context.Context, http.ResponseWriter, proto.Message) error {
+	return s.forwardResponseOptions
+}
+
+func (s *ServeMux) isPathLengthFallback(r *http.Request) bool {
+	return !s.disablePathLengthFallback && r.Method == "POST" && r.Header.Get("Content-Type") == "application/x-www-form-urlencoded"
+}
+
+type handler struct {
+	pat Pattern
+	h   HandlerFunc
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/pattern.go

@@ -0,0 +1,262 @@
+package runtime
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+
+	"github.com/grpc-ecosystem/grpc-gateway/utilities"
+	"google.golang.org/grpc/grpclog"
+)
+
+var (
+	// ErrNotMatch indicates that the given HTTP request path does not match to the pattern.
+	ErrNotMatch = errors.New("not match to the path pattern")
+	// ErrInvalidPattern indicates that the given definition of Pattern is not valid.
+	ErrInvalidPattern = errors.New("invalid pattern")
+)
+
+type op struct {
+	code    utilities.OpCode
+	operand int
+}
+
+// Pattern is a template pattern of http request paths defined in github.com/googleapis/googleapis/google/api/http.proto.
+type Pattern struct {
+	// ops is a list of operations
+	ops []op
+	// pool is a constant pool indexed by the operands or vars.
+	pool []string
+	// vars is a list of variables names to be bound by this pattern
+	vars []string
+	// stacksize is the max depth of the stack
+	stacksize int
+	// tailLen is the length of the fixed-size segments after a deep wildcard
+	tailLen int
+	// verb is the VERB part of the path pattern. It is empty if the pattern does not have VERB part.
+	verb string
+	// assumeColonVerb indicates whether a path suffix after a final
+	// colon may only be interpreted as a verb.
+	assumeColonVerb bool
+}
+
+type patternOptions struct {
+	assumeColonVerb bool
+}
+
+// PatternOpt is an option for creating Patterns.
+type PatternOpt func(*patternOptions)
+
+// NewPattern returns a new Pattern from the given definition values.
+// "ops" is a sequence of op codes. "pool" is a constant pool.
+// "verb" is the verb part of the pattern. It is empty if the pattern does not have the part.
+// "version" must be 1 for now.
+// It returns an error if the given definition is invalid.
+func NewPattern(version int, ops []int, pool []string, verb string, opts ...PatternOpt) (Pattern, error) {
+	options := patternOptions{
+		assumeColonVerb: true,
+	}
+	for _, o := range opts {
+		o(&options)
+	}
+
+	if version != 1 {
+		grpclog.Infof("unsupported version: %d", version)
+		return Pattern{}, ErrInvalidPattern
+	}
+
+	l := len(ops)
+	if l%2 != 0 {
+		grpclog.Infof("odd number of ops codes: %d", l)
+		return Pattern{}, ErrInvalidPattern
+	}
+
+	var (
+		typedOps        []op
+		stack, maxstack int
+		tailLen         int
+		pushMSeen       bool
+		vars            []string
+	)
+	for i := 0; i < l; i += 2 {
+		op := op{code: utilities.OpCode(ops[i]), operand: ops[i+1]}
+		switch op.code {
+		case utilities.OpNop:
+			continue
+		case utilities.OpPush:
+			if pushMSeen {
+				tailLen++
+			}
+			stack++
+		case utilities.OpPushM:
+			if pushMSeen {
+				grpclog.Infof("pushM appears twice")
+				return Pattern{}, ErrInvalidPattern
+			}
+			pushMSeen = true
+			stack++
+		case utilities.OpLitPush:
+			if op.operand < 0 || len(pool) <= op.operand {
+				grpclog.Infof("negative literal index: %d", op.operand)
+				return Pattern{}, ErrInvalidPattern
+			}
+			if pushMSeen {
+				tailLen++
+			}
+			stack++
+		case utilities.OpConcatN:
+			if op.operand <= 0 {
+				grpclog.Infof("negative concat size: %d", op.operand)
+				return Pattern{}, ErrInvalidPattern
+			}
+			stack -= op.operand
+			if stack < 0 {
+				grpclog.Print("stack underflow")
+				return Pattern{}, ErrInvalidPattern
+			}
+			stack++
+		case utilities.OpCapture:
+			if op.operand < 0 || len(pool) <= op.operand {
+				grpclog.Infof("variable name index out of bound: %d", op.operand)
+				return Pattern{}, ErrInvalidPattern
+			}
+			v := pool[op.operand]
+			op.operand = len(vars)
+			vars = append(vars, v)
+			stack--
+			if stack < 0 {
+				grpclog.Infof("stack underflow")
+				return Pattern{}, ErrInvalidPattern
+			}
+		default:
+			grpclog.Infof("invalid opcode: %d", op.code)
+			return Pattern{}, ErrInvalidPattern
+		}
+
+		if maxstack < stack {
+			maxstack = stack
+		}
+		typedOps = append(typedOps, op)
+	}
+	return Pattern{
+		ops:             typedOps,
+		pool:            pool,
+		vars:            vars,
+		stacksize:       maxstack,
+		tailLen:         tailLen,
+		verb:            verb,
+		assumeColonVerb: options.assumeColonVerb,
+	}, nil
+}
+
+// MustPattern is a helper function which makes it easier to call NewPattern in variable initialization.
+func MustPattern(p Pattern, err error) Pattern {
+	if err != nil {
+		grpclog.Fatalf("Pattern initialization failed: %v", err)
+	}
+	return p
+}
+
+// Match examines components if it matches to the Pattern.
+// If it matches, the function returns a mapping from field paths to their captured values.
+// If otherwise, the function returns an error.
+func (p Pattern) Match(components []string, verb string) (map[string]string, error) {
+	if p.verb != verb {
+		if p.assumeColonVerb || p.verb != "" {
+			return nil, ErrNotMatch
+		}
+		if len(components) == 0 {
+			components = []string{":" + verb}
+		} else {
+			components = append([]string{}, components...)
+			components[len(components)-1] += ":" + verb
+		}
+		verb = ""
+	}
+
+	var pos int
+	stack := make([]string, 0, p.stacksize)
+	captured := make([]string, len(p.vars))
+	l := len(components)
+	for _, op := range p.ops {
+		switch op.code {
+		case utilities.OpNop:
+			continue
+		case utilities.OpPush, utilities.OpLitPush:
+			if pos >= l {
+				return nil, ErrNotMatch
+			}
+			c := components[pos]
+			if op.code == utilities.OpLitPush {
+				if lit := p.pool[op.operand]; c != lit {
+					return nil, ErrNotMatch
+				}
+			}
+			stack = append(stack, c)
+			pos++
+		case utilities.OpPushM:
+			end := len(components)
+			if end < pos+p.tailLen {
+				return nil, ErrNotMatch
+			}
+			end -= p.tailLen
+			stack = append(stack, strings.Join(components[pos:end], "/"))
+			pos = end
+		case utilities.OpConcatN:
+			n := op.operand
+			l := len(stack) - n
+			stack = append(stack[:l], strings.Join(stack[l:], "/"))
+		case utilities.OpCapture:
+			n := len(stack) - 1
+			captured[op.operand] = stack[n]
+			stack = stack[:n]
+		}
+	}
+	if pos < l {
+		return nil, ErrNotMatch
+	}
+	bindings := make(map[string]string)
+	for i, val := range captured {
+		bindings[p.vars[i]] = val
+	}
+	return bindings, nil
+}
+
+// Verb returns the verb part of the Pattern.
+func (p Pattern) Verb() string { return p.verb }
+
+func (p Pattern) String() string {
+	var stack []string
+	for _, op := range p.ops {
+		switch op.code {
+		case utilities.OpNop:
+			continue
+		case utilities.OpPush:
+			stack = append(stack, "*")
+		case utilities.OpLitPush:
+			stack = append(stack, p.pool[op.operand])
+		case utilities.OpPushM:
+			stack = append(stack, "**")
+		case utilities.OpConcatN:
+			n := op.operand
+			l := len(stack) - n
+			stack = append(stack[:l], strings.Join(stack[l:], "/"))
+		case utilities.OpCapture:
+			n := len(stack) - 1
+			stack[n] = fmt.Sprintf("{%s=%s}", p.vars[op.operand], stack[n])
+		}
+	}
+	segs := strings.Join(stack, "/")
+	if p.verb != "" {
+		return fmt.Sprintf("/%s:%s", segs, p.verb)
+	}
+	return "/" + segs
+}
+
+// AssumeColonVerbOpt indicates whether a path suffix after a final
+// colon may only be interpreted as a verb.
+func AssumeColonVerbOpt(val bool) PatternOpt {
+	return PatternOpt(func(o *patternOptions) {
+		o.assumeColonVerb = val
+	})
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/proto2_convert.go

@@ -0,0 +1,80 @@
+package runtime
+
+import (
+	"github.com/golang/protobuf/proto"
+)
+
+// StringP returns a pointer to a string whose pointee is same as the given string value.
+func StringP(val string) (*string, error) {
+	return proto.String(val), nil
+}
+
+// BoolP parses the given string representation of a boolean value,
+// and returns a pointer to a bool whose value is same as the parsed value.
+func BoolP(val string) (*bool, error) {
+	b, err := Bool(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Bool(b), nil
+}
+
+// Float64P parses the given string representation of a floating point number,
+// and returns a pointer to a float64 whose value is same as the parsed number.
+func Float64P(val string) (*float64, error) {
+	f, err := Float64(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Float64(f), nil
+}
+
+// Float32P parses the given string representation of a floating point number,
+// and returns a pointer to a float32 whose value is same as the parsed number.
+func Float32P(val string) (*float32, error) {
+	f, err := Float32(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Float32(f), nil
+}
+
+// Int64P parses the given string representation of an integer
+// and returns a pointer to a int64 whose value is same as the parsed integer.
+func Int64P(val string) (*int64, error) {
+	i, err := Int64(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Int64(i), nil
+}
+
+// Int32P parses the given string representation of an integer
+// and returns a pointer to a int32 whose value is same as the parsed integer.
+func Int32P(val string) (*int32, error) {
+	i, err := Int32(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Int32(i), err
+}
+
+// Uint64P parses the given string representation of an integer
+// and returns a pointer to a uint64 whose value is same as the parsed integer.
+func Uint64P(val string) (*uint64, error) {
+	i, err := Uint64(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Uint64(i), err
+}
+
+// Uint32P parses the given string representation of an integer
+// and returns a pointer to a uint32 whose value is same as the parsed integer.
+func Uint32P(val string) (*uint32, error) {
+	i, err := Uint32(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Uint32(i), err
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/proto_errors.go

@@ -0,0 +1,106 @@
+package runtime
+
+import (
+	"context"
+	"io"
+	"net/http"
+
+	"github.com/golang/protobuf/ptypes/any"
+	"github.com/grpc-ecosystem/grpc-gateway/internal"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/status"
+)
+
+// StreamErrorHandlerFunc accepts an error as a gRPC error generated via status package and translates it into a
+// a proto struct used to represent error at the end of a stream.
+type StreamErrorHandlerFunc func(context.Context, error) *StreamError
+
+// StreamError is the payload for the final message in a server stream in the event that the server returns an
+// error after a response message has already been sent.
+type StreamError internal.StreamError
+
+// ProtoErrorHandlerFunc handles the error as a gRPC error generated via status package and replies to the request.
+type ProtoErrorHandlerFunc func(context.Context, *ServeMux, Marshaler, http.ResponseWriter, *http.Request, error)
+
+var _ ProtoErrorHandlerFunc = DefaultHTTPProtoErrorHandler
+
+// DefaultHTTPProtoErrorHandler is an implementation of HTTPError.
+// If "err" is an error from gRPC system, the function replies with the status code mapped by HTTPStatusFromCode.
+// If otherwise, it replies with http.StatusInternalServerError.
+//
+// The response body returned by this function is a Status message marshaled by a Marshaler.
+//
+// Do not set this function to HTTPError variable directly, use WithProtoErrorHandler option instead.
+func DefaultHTTPProtoErrorHandler(ctx context.Context, mux *ServeMux, marshaler Marshaler, w http.ResponseWriter, _ *http.Request, err error) {
+	// return Internal when Marshal failed
+	const fallback = `{"code": 13, "message": "failed to marshal error message"}`
+
+	s, ok := status.FromError(err)
+	if !ok {
+		s = status.New(codes.Unknown, err.Error())
+	}
+
+	w.Header().Del("Trailer")
+
+	contentType := marshaler.ContentType()
+	// Check marshaler on run time in order to keep backwards compatibility
+	// An interface param needs to be added to the ContentType() function on
+	// the Marshal interface to be able to remove this check
+	if typeMarshaler, ok := marshaler.(contentTypeMarshaler); ok {
+		pb := s.Proto()
+		contentType = typeMarshaler.ContentTypeFromMessage(pb)
+	}
+	w.Header().Set("Content-Type", contentType)
+
+	buf, merr := marshaler.Marshal(s.Proto())
+	if merr != nil {
+		grpclog.Infof("Failed to marshal error message %q: %v", s.Proto(), merr)
+		w.WriteHeader(http.StatusInternalServerError)
+		if _, err := io.WriteString(w, fallback); err != nil {
+			grpclog.Infof("Failed to write response: %v", err)
+		}
+		return
+	}
+
+	md, ok := ServerMetadataFromContext(ctx)
+	if !ok {
+		grpclog.Infof("Failed to extract ServerMetadata from context")
+	}
+
+	handleForwardResponseServerMetadata(w, mux, md)
+	handleForwardResponseTrailerHeader(w, md)
+	st := HTTPStatusFromCode(s.Code())
+	w.WriteHeader(st)
+	if _, err := w.Write(buf); err != nil {
+		grpclog.Infof("Failed to write response: %v", err)
+	}
+
+	handleForwardResponseTrailer(w, md)
+}
+
+// DefaultHTTPStreamErrorHandler converts the given err into a *StreamError via
+// default logic.
+//
+// It extracts the gRPC status from err if possible. The fields of the status are
+// used to populate the returned StreamError, and the HTTP status code is derived
+// from the gRPC code via HTTPStatusFromCode. If the given err does not contain a
+// gRPC status, an "Unknown" gRPC code is used and "Internal Server Error" HTTP code.
+func DefaultHTTPStreamErrorHandler(_ context.Context, err error) *StreamError {
+	grpcCode := codes.Unknown
+	grpcMessage := err.Error()
+	var grpcDetails []*any.Any
+	if s, ok := status.FromError(err); ok {
+		grpcCode = s.Code()
+		grpcMessage = s.Message()
+		grpcDetails = s.Proto().GetDetails()
+	}
+	httpCode := HTTPStatusFromCode(grpcCode)
+	return &StreamError{
+		GrpcCode:   int32(grpcCode),
+		HttpCode:   int32(httpCode),
+		Message:    grpcMessage,
+		HttpStatus: http.StatusText(httpCode),
+		Details:    grpcDetails,
+	}
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/query.go

@@ -0,0 +1,406 @@
+package runtime
+
+import (
+	"encoding/base64"
+	"fmt"
+	"net/url"
+	"reflect"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/grpc-ecosystem/grpc-gateway/utilities"
+	"google.golang.org/grpc/grpclog"
+)
+
+var valuesKeyRegexp = regexp.MustCompile("^(.*)\\[(.*)\\]$")
+
+var currentQueryParser QueryParameterParser = &defaultQueryParser{}
+
+// QueryParameterParser defines interface for all query parameter parsers
+type QueryParameterParser interface {
+	Parse(msg proto.Message, values url.Values, filter *utilities.DoubleArray) error
+}
+
+// PopulateQueryParameters parses query parameters
+// into "msg" using current query parser
+func PopulateQueryParameters(msg proto.Message, values url.Values, filter *utilities.DoubleArray) error {
+	return currentQueryParser.Parse(msg, values, filter)
+}
+
+type defaultQueryParser struct{}
+
+// Parse populates "values" into "msg".
+// A value is ignored if its key starts with one of the elements in "filter".
+func (*defaultQueryParser) Parse(msg proto.Message, values url.Values, filter *utilities.DoubleArray) error {
+	for key, values := range values {
+		match := valuesKeyRegexp.FindStringSubmatch(key)
+		if len(match) == 3 {
+			key = match[1]
+			values = append([]string{match[2]}, values...)
+		}
+		fieldPath := strings.Split(key, ".")
+		if filter.HasCommonPrefix(fieldPath) {
+			continue
+		}
+		if err := populateFieldValueFromPath(msg, fieldPath, values); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// PopulateFieldFromPath sets a value in a nested Protobuf structure.
+// It instantiates missing protobuf fields as it goes.
+func PopulateFieldFromPath(msg proto.Message, fieldPathString string, value string) error {
+	fieldPath := strings.Split(fieldPathString, ".")
+	return populateFieldValueFromPath(msg, fieldPath, []string{value})
+}
+
+func populateFieldValueFromPath(msg proto.Message, fieldPath []string, values []string) error {
+	m := reflect.ValueOf(msg)
+	if m.Kind() != reflect.Ptr {
+		return fmt.Errorf("unexpected type %T: %v", msg, msg)
+	}
+	var props *proto.Properties
+	m = m.Elem()
+	for i, fieldName := range fieldPath {
+		isLast := i == len(fieldPath)-1
+		if !isLast && m.Kind() != reflect.Struct {
+			return fmt.Errorf("non-aggregate type in the mid of path: %s", strings.Join(fieldPath, "."))
+		}
+		var f reflect.Value
+		var err error
+		f, props, err = fieldByProtoName(m, fieldName)
+		if err != nil {
+			return err
+		} else if !f.IsValid() {
+			grpclog.Infof("field not found in %T: %s", msg, strings.Join(fieldPath, "."))
+			return nil
+		}
+
+		switch f.Kind() {
+		case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64, reflect.String, reflect.Uint32, reflect.Uint64:
+			if !isLast {
+				return fmt.Errorf("unexpected nested field %s in %s", fieldPath[i+1], strings.Join(fieldPath[:i+1], "."))
+			}
+			m = f
+		case reflect.Slice:
+			if !isLast {
+				return fmt.Errorf("unexpected repeated field in %s", strings.Join(fieldPath, "."))
+			}
+			// Handle []byte
+			if f.Type().Elem().Kind() == reflect.Uint8 {
+				m = f
+				break
+			}
+			return populateRepeatedField(f, values, props)
+		case reflect.Ptr:
+			if f.IsNil() {
+				m = reflect.New(f.Type().Elem())
+				f.Set(m.Convert(f.Type()))
+			}
+			m = f.Elem()
+			continue
+		case reflect.Struct:
+			m = f
+			continue
+		case reflect.Map:
+			if !isLast {
+				return fmt.Errorf("unexpected nested field %s in %s", fieldPath[i+1], strings.Join(fieldPath[:i+1], "."))
+			}
+			return populateMapField(f, values, props)
+		default:
+			return fmt.Errorf("unexpected type %s in %T", f.Type(), msg)
+		}
+	}
+	switch len(values) {
+	case 0:
+		return fmt.Errorf("no value of field: %s", strings.Join(fieldPath, "."))
+	case 1:
+	default:
+		grpclog.Infof("too many field values: %s", strings.Join(fieldPath, "."))
+	}
+	return populateField(m, values[0], props)
+}
+
+// fieldByProtoName looks up a field whose corresponding protobuf field name is "name".
+// "m" must be a struct value. It returns zero reflect.Value if no such field found.
+func fieldByProtoName(m reflect.Value, name string) (reflect.Value, *proto.Properties, error) {
+	props := proto.GetProperties(m.Type())
+
+	// look up field name in oneof map
+	for _, op := range props.OneofTypes {
+		if name == op.Prop.OrigName || name == op.Prop.JSONName {
+			v := reflect.New(op.Type.Elem())
+			field := m.Field(op.Field)
+			if !field.IsNil() {
+				return reflect.Value{}, nil, fmt.Errorf("field already set for %s oneof", props.Prop[op.Field].OrigName)
+			}
+			field.Set(v)
+			return v.Elem().Field(0), op.Prop, nil
+		}
+	}
+
+	for _, p := range props.Prop {
+		if p.OrigName == name {
+			return m.FieldByName(p.Name), p, nil
+		}
+		if p.JSONName == name {
+			return m.FieldByName(p.Name), p, nil
+		}
+	}
+	return reflect.Value{}, nil, nil
+}
+
+func populateMapField(f reflect.Value, values []string, props *proto.Properties) error {
+	if len(values) != 2 {
+		return fmt.Errorf("more than one value provided for key %s in map %s", values[0], props.Name)
+	}
+
+	key, value := values[0], values[1]
+	keyType := f.Type().Key()
+	valueType := f.Type().Elem()
+	if f.IsNil() {
+		f.Set(reflect.MakeMap(f.Type()))
+	}
+
+	keyConv, ok := convFromType[keyType.Kind()]
+	if !ok {
+		return fmt.Errorf("unsupported key type %s in map %s", keyType, props.Name)
+	}
+	valueConv, ok := convFromType[valueType.Kind()]
+	if !ok {
+		return fmt.Errorf("unsupported value type %s in map %s", valueType, props.Name)
+	}
+
+	keyV := keyConv.Call([]reflect.Value{reflect.ValueOf(key)})
+	if err := keyV[1].Interface(); err != nil {
+		return err.(error)
+	}
+	valueV := valueConv.Call([]reflect.Value{reflect.ValueOf(value)})
+	if err := valueV[1].Interface(); err != nil {
+		return err.(error)
+	}
+
+	f.SetMapIndex(keyV[0].Convert(keyType), valueV[0].Convert(valueType))
+
+	return nil
+}
+
+func populateRepeatedField(f reflect.Value, values []string, props *proto.Properties) error {
+	elemType := f.Type().Elem()
+
+	// is the destination field a slice of an enumeration type?
+	if enumValMap := proto.EnumValueMap(props.Enum); enumValMap != nil {
+		return populateFieldEnumRepeated(f, values, enumValMap)
+	}
+
+	conv, ok := convFromType[elemType.Kind()]
+	if !ok {
+		return fmt.Errorf("unsupported field type %s", elemType)
+	}
+	f.Set(reflect.MakeSlice(f.Type(), len(values), len(values)).Convert(f.Type()))
+	for i, v := range values {
+		result := conv.Call([]reflect.Value{reflect.ValueOf(v)})
+		if err := result[1].Interface(); err != nil {
+			return err.(error)
+		}
+		f.Index(i).Set(result[0].Convert(f.Index(i).Type()))
+	}
+	return nil
+}
+
+func populateField(f reflect.Value, value string, props *proto.Properties) error {
+	i := f.Addr().Interface()
+
+	// Handle protobuf well known types
+	var name string
+	switch m := i.(type) {
+	case interface{ XXX_WellKnownType() string }:
+		name = m.XXX_WellKnownType()
+	case proto.Message:
+		const wktPrefix = "google.protobuf."
+		if fullName := proto.MessageName(m); strings.HasPrefix(fullName, wktPrefix) {
+			name = fullName[len(wktPrefix):]
+		}
+	}
+	switch name {
+	case "Timestamp":
+		if value == "null" {
+			f.FieldByName("Seconds").SetInt(0)
+			f.FieldByName("Nanos").SetInt(0)
+			return nil
+		}
+
+		t, err := time.Parse(time.RFC3339Nano, value)
+		if err != nil {
+			return fmt.Errorf("bad Timestamp: %v", err)
+		}
+		f.FieldByName("Seconds").SetInt(int64(t.Unix()))
+		f.FieldByName("Nanos").SetInt(int64(t.Nanosecond()))
+		return nil
+	case "Duration":
+		if value == "null" {
+			f.FieldByName("Seconds").SetInt(0)
+			f.FieldByName("Nanos").SetInt(0)
+			return nil
+		}
+		d, err := time.ParseDuration(value)
+		if err != nil {
+			return fmt.Errorf("bad Duration: %v", err)
+		}
+
+		ns := d.Nanoseconds()
+		s := ns / 1e9
+		ns %= 1e9
+		f.FieldByName("Seconds").SetInt(s)
+		f.FieldByName("Nanos").SetInt(ns)
+		return nil
+	case "DoubleValue":
+		fallthrough
+	case "FloatValue":
+		float64Val, err := strconv.ParseFloat(value, 64)
+		if err != nil {
+			return fmt.Errorf("bad DoubleValue: %s", value)
+		}
+		f.FieldByName("Value").SetFloat(float64Val)
+		return nil
+	case "Int64Value":
+		fallthrough
+	case "Int32Value":
+		int64Val, err := strconv.ParseInt(value, 10, 64)
+		if err != nil {
+			return fmt.Errorf("bad DoubleValue: %s", value)
+		}
+		f.FieldByName("Value").SetInt(int64Val)
+		return nil
+	case "UInt64Value":
+		fallthrough
+	case "UInt32Value":
+		uint64Val, err := strconv.ParseUint(value, 10, 64)
+		if err != nil {
+			return fmt.Errorf("bad DoubleValue: %s", value)
+		}
+		f.FieldByName("Value").SetUint(uint64Val)
+		return nil
+	case "BoolValue":
+		if value == "true" {
+			f.FieldByName("Value").SetBool(true)
+		} else if value == "false" {
+			f.FieldByName("Value").SetBool(false)
+		} else {
+			return fmt.Errorf("bad BoolValue: %s", value)
+		}
+		return nil
+	case "StringValue":
+		f.FieldByName("Value").SetString(value)
+		return nil
+	case "BytesValue":
+		bytesVal, err := base64.StdEncoding.DecodeString(value)
+		if err != nil {
+			return fmt.Errorf("bad BytesValue: %s", value)
+		}
+		f.FieldByName("Value").SetBytes(bytesVal)
+		return nil
+	case "FieldMask":
+		p := f.FieldByName("Paths")
+		for _, v := range strings.Split(value, ",") {
+			if v != "" {
+				p.Set(reflect.Append(p, reflect.ValueOf(v)))
+			}
+		}
+		return nil
+	}
+
+	// Handle Time and Duration stdlib types
+	switch t := i.(type) {
+	case *time.Time:
+		pt, err := time.Parse(time.RFC3339Nano, value)
+		if err != nil {
+			return fmt.Errorf("bad Timestamp: %v", err)
+		}
+		*t = pt
+		return nil
+	case *time.Duration:
+		d, err := time.ParseDuration(value)
+		if err != nil {
+			return fmt.Errorf("bad Duration: %v", err)
+		}
+		*t = d
+		return nil
+	}
+
+	// is the destination field an enumeration type?
+	if enumValMap := proto.EnumValueMap(props.Enum); enumValMap != nil {
+		return populateFieldEnum(f, value, enumValMap)
+	}
+
+	conv, ok := convFromType[f.Kind()]
+	if !ok {
+		return fmt.Errorf("field type %T is not supported in query parameters", i)
+	}
+	result := conv.Call([]reflect.Value{reflect.ValueOf(value)})
+	if err := result[1].Interface(); err != nil {
+		return err.(error)
+	}
+	f.Set(result[0].Convert(f.Type()))
+	return nil
+}
+
+func convertEnum(value string, t reflect.Type, enumValMap map[string]int32) (reflect.Value, error) {
+	// see if it's an enumeration string
+	if enumVal, ok := enumValMap[value]; ok {
+		return reflect.ValueOf(enumVal).Convert(t), nil
+	}
+
+	// check for an integer that matches an enumeration value
+	eVal, err := strconv.Atoi(value)
+	if err != nil {
+		return reflect.Value{}, fmt.Errorf("%s is not a valid %s", value, t)
+	}
+	for _, v := range enumValMap {
+		if v == int32(eVal) {
+			return reflect.ValueOf(eVal).Convert(t), nil
+		}
+	}
+	return reflect.Value{}, fmt.Errorf("%s is not a valid %s", value, t)
+}
+
+func populateFieldEnum(f reflect.Value, value string, enumValMap map[string]int32) error {
+	cval, err := convertEnum(value, f.Type(), enumValMap)
+	if err != nil {
+		return err
+	}
+	f.Set(cval)
+	return nil
+}
+
+func populateFieldEnumRepeated(f reflect.Value, values []string, enumValMap map[string]int32) error {
+	elemType := f.Type().Elem()
+	f.Set(reflect.MakeSlice(f.Type(), len(values), len(values)).Convert(f.Type()))
+	for i, v := range values {
+		result, err := convertEnum(v, elemType, enumValMap)
+		if err != nil {
+			return err
+		}
+		f.Index(i).Set(result)
+	}
+	return nil
+}
+
+var (
+	convFromType = map[reflect.Kind]reflect.Value{
+		reflect.String:  reflect.ValueOf(String),
+		reflect.Bool:    reflect.ValueOf(Bool),
+		reflect.Float64: reflect.ValueOf(Float64),
+		reflect.Float32: reflect.ValueOf(Float32),
+		reflect.Int64:   reflect.ValueOf(Int64),
+		reflect.Int32:   reflect.ValueOf(Int32),
+		reflect.Uint64:  reflect.ValueOf(Uint64),
+		reflect.Uint32:  reflect.ValueOf(Uint32),
+		reflect.Slice:   reflect.ValueOf(Bytes),
+	}
+)

vendor/github.com/grpc-ecosystem/grpc-gateway/utilities/BUILD.bazel

@@ -0,0 +1,21 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+package(default_visibility = ["//visibility:public"])
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "doc.go",
+        "pattern.go",
+        "readerfactory.go",
+        "trie.go",
+    ],
+    importpath = "github.com/grpc-ecosystem/grpc-gateway/utilities",
+)
+
+go_test(
+    name = "go_default_test",
+    size = "small",
+    srcs = ["trie_test.go"],
+    embed = [":go_default_library"],
+)

vendor/github.com/grpc-ecosystem/grpc-gateway/utilities/doc.go

@@ -0,0 +1,2 @@
+// Package utilities provides members for internal use in grpc-gateway.
+package utilities

vendor/github.com/grpc-ecosystem/grpc-gateway/utilities/pattern.go

@@ -0,0 +1,22 @@
+package utilities
+
+// An OpCode is a opcode of compiled path patterns.
+type OpCode int
+
+// These constants are the valid values of OpCode.
+const (
+	// OpNop does nothing
+	OpNop = OpCode(iota)
+	// OpPush pushes a component to stack
+	OpPush
+	// OpLitPush pushes a component to stack if it matches to the literal
+	OpLitPush
+	// OpPushM concatenates the remaining components and pushes it to stack
+	OpPushM
+	// OpConcatN pops N items from stack, concatenates them and pushes it back to stack
+	OpConcatN
+	// OpCapture pops an item and binds it to the variable
+	OpCapture
+	// OpEnd is the least positive invalid opcode.
+	OpEnd
+)

vendor/github.com/grpc-ecosystem/grpc-gateway/utilities/readerfactory.go

@@ -0,0 +1,20 @@
+package utilities
+
+import (
+	"bytes"
+	"io"
+	"io/ioutil"
+)
+
+// IOReaderFactory takes in an io.Reader and returns a function that will allow you to create a new reader that begins
+// at the start of the stream
+func IOReaderFactory(r io.Reader) (func() io.Reader, error) {
+	b, err := ioutil.ReadAll(r)
+	if err != nil {
+		return nil, err
+	}
+
+	return func() io.Reader {
+		return bytes.NewReader(b)
+	}, nil
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/utilities/trie.go

@@ -0,0 +1,177 @@
+package utilities
+
+import (
+	"sort"
+)
+
+// DoubleArray is a Double Array implementation of trie on sequences of strings.
+type DoubleArray struct {
+	// Encoding keeps an encoding from string to int
+	Encoding map[string]int
+	// Base is the base array of Double Array
+	Base []int
+	// Check is the check array of Double Array
+	Check []int
+}
+
+// NewDoubleArray builds a DoubleArray from a set of sequences of strings.
+func NewDoubleArray(seqs [][]string) *DoubleArray {
+	da := &DoubleArray{Encoding: make(map[string]int)}
+	if len(seqs) == 0 {
+		return da
+	}
+
+	encoded := registerTokens(da, seqs)
+	sort.Sort(byLex(encoded))
+
+	root := node{row: -1, col: -1, left: 0, right: len(encoded)}
+	addSeqs(da, encoded, 0, root)
+
+	for i := len(da.Base); i > 0; i-- {
+		if da.Check[i-1] != 0 {
+			da.Base = da.Base[:i]
+			da.Check = da.Check[:i]
+			break
+		}
+	}
+	return da
+}
+
+func registerTokens(da *DoubleArray, seqs [][]string) [][]int {
+	var result [][]int
+	for _, seq := range seqs {
+		var encoded []int
+		for _, token := range seq {
+			if _, ok := da.Encoding[token]; !ok {
+				da.Encoding[token] = len(da.Encoding)
+			}
+			encoded = append(encoded, da.Encoding[token])
+		}
+		result = append(result, encoded)
+	}
+	for i := range result {
+		result[i] = append(result[i], len(da.Encoding))
+	}
+	return result
+}
+
+type node struct {
+	row, col    int
+	left, right int
+}
+
+func (n node) value(seqs [][]int) int {
+	return seqs[n.row][n.col]
+}
+
+func (n node) children(seqs [][]int) []*node {
+	var result []*node
+	lastVal := int(-1)
+	last := new(node)
+	for i := n.left; i < n.right; i++ {
+		if lastVal == seqs[i][n.col+1] {
+			continue
+		}
+		last.right = i
+		last = &node{
+			row:  i,
+			col:  n.col + 1,
+			left: i,
+		}
+		result = append(result, last)
+	}
+	last.right = n.right
+	return result
+}
+
+func addSeqs(da *DoubleArray, seqs [][]int, pos int, n node) {
+	ensureSize(da, pos)
+
+	children := n.children(seqs)
+	var i int
+	for i = 1; ; i++ {
+		ok := func() bool {
+			for _, child := range children {
+				code := child.value(seqs)
+				j := i + code
+				ensureSize(da, j)
+				if da.Check[j] != 0 {
+					return false
+				}
+			}
+			return true
+		}()
+		if ok {
+			break
+		}
+	}
+	da.Base[pos] = i
+	for _, child := range children {
+		code := child.value(seqs)
+		j := i + code
+		da.Check[j] = pos + 1
+	}
+	terminator := len(da.Encoding)
+	for _, child := range children {
+		code := child.value(seqs)
+		if code == terminator {
+			continue
+		}
+		j := i + code
+		addSeqs(da, seqs, j, *child)
+	}
+}
+
+func ensureSize(da *DoubleArray, i int) {
+	for i >= len(da.Base) {
+		da.Base = append(da.Base, make([]int, len(da.Base)+1)...)
+		da.Check = append(da.Check, make([]int, len(da.Check)+1)...)
+	}
+}
+
+type byLex [][]int
+
+func (l byLex) Len() int      { return len(l) }
+func (l byLex) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
+func (l byLex) Less(i, j int) bool {
+	si := l[i]
+	sj := l[j]
+	var k int
+	for k = 0; k < len(si) && k < len(sj); k++ {
+		if si[k] < sj[k] {
+			return true
+		}
+		if si[k] > sj[k] {
+			return false
+		}
+	}
+	if k < len(sj) {
+		return true
+	}
+	return false
+}
+
+// HasCommonPrefix determines if any sequence in the DoubleArray is a prefix of the given sequence.
+func (da *DoubleArray) HasCommonPrefix(seq []string) bool {
+	if len(da.Base) == 0 {
+		return false
+	}
+
+	var i int
+	for _, t := range seq {
+		code, ok := da.Encoding[t]
+		if !ok {
+			break
+		}
+		j := da.Base[i] + code
+		if len(da.Check) <= j || da.Check[j] != i+1 {
+			break
+		}
+		i = j
+	}
+	j := da.Base[i] + len(da.Encoding)
+	if len(da.Check) <= j || da.Check[j] != i+1 {
+		return false
+	}
+	return true
+}

vendor/github.com/hashicorp/golang-lru/2q.go

@@ -1,223 +0,0 @@
-package lru
-
-import (
-	"fmt"
-	"sync"
-
-	"github.com/hashicorp/golang-lru/simplelru"
-)
-
-const (
-	// Default2QRecentRatio is the ratio of the 2Q cache dedicated
-	// to recently added entries that have only been accessed once.
-	Default2QRecentRatio = 0.25
-
-	// Default2QGhostEntries is the default ratio of ghost
-	// entries kept to track entries recently evicted
-	Default2QGhostEntries = 0.50
-)
-
-// TwoQueueCache is a thread-safe fixed size 2Q cache.
-// 2Q is an enhancement over the standard LRU cache
-// in that it tracks both frequently and recently used
-// entries separately. This avoids a burst in access to new
-// entries from evicting frequently used entries. It adds some
-// additional tracking overhead to the standard LRU cache, and is
-// computationally about 2x the cost, and adds some metadata over
-// head. The ARCCache is similar, but does not require setting any
-// parameters.
-type TwoQueueCache struct {
-	size       int
-	recentSize int
-
-	recent      simplelru.LRUCache
-	frequent    simplelru.LRUCache
-	recentEvict simplelru.LRUCache
-	lock        sync.RWMutex
-}
-
-// New2Q creates a new TwoQueueCache using the default
-// values for the parameters.
-func New2Q(size int) (*TwoQueueCache, error) {
-	return New2QParams(size, Default2QRecentRatio, Default2QGhostEntries)
-}
-
-// New2QParams creates a new TwoQueueCache using the provided
-// parameter values.
-func New2QParams(size int, recentRatio float64, ghostRatio float64) (*TwoQueueCache, error) {
-	if size <= 0 {
-		return nil, fmt.Errorf("invalid size")
-	}
-	if recentRatio < 0.0 || recentRatio > 1.0 {
-		return nil, fmt.Errorf("invalid recent ratio")
-	}
-	if ghostRatio < 0.0 || ghostRatio > 1.0 {
-		return nil, fmt.Errorf("invalid ghost ratio")
-	}
-
-	// Determine the sub-sizes
-	recentSize := int(float64(size) * recentRatio)
-	evictSize := int(float64(size) * ghostRatio)
-
-	// Allocate the LRUs
-	recent, err := simplelru.NewLRU(size, nil)
-	if err != nil {
-		return nil, err
-	}
-	frequent, err := simplelru.NewLRU(size, nil)
-	if err != nil {
-		return nil, err
-	}
-	recentEvict, err := simplelru.NewLRU(evictSize, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	// Initialize the cache
-	c := &TwoQueueCache{
-		size:        size,
-		recentSize:  recentSize,
-		recent:      recent,
-		frequent:    frequent,
-		recentEvict: recentEvict,
-	}
-	return c, nil
-}
-
-// Get looks up a key's value from the cache.
-func (c *TwoQueueCache) Get(key interface{}) (value interface{}, ok bool) {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-
-	// Check if this is a frequent value
-	if val, ok := c.frequent.Get(key); ok {
-		return val, ok
-	}
-
-	// If the value is contained in recent, then we
-	// promote it to frequent
-	if val, ok := c.recent.Peek(key); ok {
-		c.recent.Remove(key)
-		c.frequent.Add(key, val)
-		return val, ok
-	}
-
-	// No hit
-	return nil, false
-}
-
-// Add adds a value to the cache.
-func (c *TwoQueueCache) Add(key, value interface{}) {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-
-	// Check if the value is frequently used already,
-	// and just update the value
-	if c.frequent.Contains(key) {
-		c.frequent.Add(key, value)
-		return
-	}
-
-	// Check if the value is recently used, and promote
-	// the value into the frequent list
-	if c.recent.Contains(key) {
-		c.recent.Remove(key)
-		c.frequent.Add(key, value)
-		return
-	}
-
-	// If the value was recently evicted, add it to the
-	// frequently used list
-	if c.recentEvict.Contains(key) {
-		c.ensureSpace(true)
-		c.recentEvict.Remove(key)
-		c.frequent.Add(key, value)
-		return
-	}
-
-	// Add to the recently seen list
-	c.ensureSpace(false)
-	c.recent.Add(key, value)
-	return
-}
-
-// ensureSpace is used to ensure we have space in the cache
-func (c *TwoQueueCache) ensureSpace(recentEvict bool) {
-	// If we have space, nothing to do
-	recentLen := c.recent.Len()
-	freqLen := c.frequent.Len()
-	if recentLen+freqLen < c.size {
-		return
-	}
-
-	// If the recent buffer is larger than
-	// the target, evict from there
-	if recentLen > 0 && (recentLen > c.recentSize || (recentLen == c.recentSize && !recentEvict)) {
-		k, _, _ := c.recent.RemoveOldest()
-		c.recentEvict.Add(k, nil)
-		return
-	}
-
-	// Remove from the frequent list otherwise
-	c.frequent.RemoveOldest()
-}
-
-// Len returns the number of items in the cache.
-func (c *TwoQueueCache) Len() int {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.recent.Len() + c.frequent.Len()
-}
-
-// Keys returns a slice of the keys in the cache.
-// The frequently used keys are first in the returned slice.
-func (c *TwoQueueCache) Keys() []interface{} {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-	k1 := c.frequent.Keys()
-	k2 := c.recent.Keys()
-	return append(k1, k2...)
-}
-
-// Remove removes the provided key from the cache.
-func (c *TwoQueueCache) Remove(key interface{}) {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-	if c.frequent.Remove(key) {
-		return
-	}
-	if c.recent.Remove(key) {
-		return
-	}
-	if c.recentEvict.Remove(key) {
-		return
-	}
-}
-
-// Purge is used to completely clear the cache.
-func (c *TwoQueueCache) Purge() {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-	c.recent.Purge()
-	c.frequent.Purge()
-	c.recentEvict.Purge()
-}
-
-// Contains is used to check if the cache contains a key
-// without updating recency or frequency.
-func (c *TwoQueueCache) Contains(key interface{}) bool {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.frequent.Contains(key) || c.recent.Contains(key)
-}
-
-// Peek is used to inspect the cache value of a key
-// without updating recency or frequency.
-func (c *TwoQueueCache) Peek(key interface{}) (value interface{}, ok bool) {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-	if val, ok := c.frequent.Peek(key); ok {
-		return val, ok
-	}
-	return c.recent.Peek(key)
-}

vendor/github.com/hashicorp/golang-lru/LICENSE

@@ -1,362 +0,0 @@
-Mozilla Public License, version 2.0
-
-1. Definitions
-
-1.1. "Contributor"
-
-     means each individual or legal entity that creates, contributes to the
-     creation of, or owns Covered Software.
-
-1.2. "Contributor Version"
-
-     means the combination of the Contributions of others (if any) used by a
-     Contributor and that particular Contributor's Contribution.
-
-1.3. "Contribution"
-
-     means Covered Software of a particular Contributor.
-
-1.4. "Covered Software"
-
-     means Source Code Form to which the initial Contributor has attached the
-     notice in Exhibit A, the Executable Form of such Source Code Form, and
-     Modifications of such Source Code Form, in each case including portions
-     thereof.
-
-1.5. "Incompatible With Secondary Licenses"
-     means
-
-     a. that the initial Contributor has attached the notice described in
-        Exhibit B to the Covered Software; or
-
-     b. that the Covered Software was made available under the terms of
-        version 1.1 or earlier of the License, but not also under the terms of
-        a Secondary License.
-
-1.6. "Executable Form"
-
-     means any form of the work other than Source Code Form.
-
-1.7. "Larger Work"
-
-     means a work that combines Covered Software with other material, in a
-     separate file or files, that is not Covered Software.
-
-1.8. "License"
-
-     means this document.
-
-1.9. "Licensable"
-
-     means having the right to grant, to the maximum extent possible, whether
-     at the time of the initial grant or subsequently, any and all of the
-     rights conveyed by this License.
-
-1.10. "Modifications"
-
-     means any of the following:
-
-     a. any file in Source Code Form that results from an addition to,
-        deletion from, or modification of the contents of Covered Software; or
-
-     b. any new file in Source Code Form that contains any Covered Software.
-
-1.11. "Patent Claims" of a Contributor
-
-      means any patent claim(s), including without limitation, method,
-      process, and apparatus claims, in any patent Licensable by such
-      Contributor that would be infringed, but for the grant of the License,
-      by the making, using, selling, offering for sale, having made, import,
-      or transfer of either its Contributions or its Contributor Version.
-
-1.12. "Secondary License"
-
-      means either the GNU General Public License, Version 2.0, the GNU Lesser
-      General Public License, Version 2.1, the GNU Affero General Public
-      License, Version 3.0, or any later versions of those licenses.
-
-1.13. "Source Code Form"
-
-      means the form of the work preferred for making modifications.
-
-1.14. "You" (or "Your")
-
-      means an individual or a legal entity exercising rights under this
-      License. For legal entities, "You" includes any entity that controls, is
-      controlled by, or is under common control with You. For purposes of this
-      definition, "control" means (a) the power, direct or indirect, to cause
-      the direction or management of such entity, whether by contract or
-      otherwise, or (b) ownership of more than fifty percent (50%) of the
-      outstanding shares or beneficial ownership of such entity.
-
-
-2. License Grants and Conditions
-
-2.1. Grants
-
-     Each Contributor hereby grants You a world-wide, royalty-free,
-     non-exclusive license:
-
-     a. under intellectual property rights (other than patent or trademark)
-        Licensable by such Contributor to use, reproduce, make available,
-        modify, display, perform, distribute, and otherwise exploit its
-        Contributions, either on an unmodified basis, with Modifications, or
-        as part of a Larger Work; and
-
-     b. under Patent Claims of such Contributor to make, use, sell, offer for
-        sale, have made, import, and otherwise transfer either its
-        Contributions or its Contributor Version.
-
-2.2. Effective Date
-
-     The licenses granted in Section 2.1 with respect to any Contribution
-     become effective for each Contribution on the date the Contributor first
-     distributes such Contribution.
-
-2.3. Limitations on Grant Scope
-
-     The licenses granted in this Section 2 are the only rights granted under
-     this License. No additional rights or licenses will be implied from the
-     distribution or licensing of Covered Software under this License.
-     Notwithstanding Section 2.1(b) above, no patent license is granted by a
-     Contributor:
-
-     a. for any code that a Contributor has removed from Covered Software; or
-
-     b. for infringements caused by: (i) Your and any other third party's
-        modifications of Covered Software, or (ii) the combination of its
-        Contributions with other software (except as part of its Contributor
-        Version); or
-
-     c. under Patent Claims infringed by Covered Software in the absence of
-        its Contributions.
-
-     This License does not grant any rights in the trademarks, service marks,
-     or logos of any Contributor (except as may be necessary to comply with
-     the notice requirements in Section 3.4).
-
-2.4. Subsequent Licenses
-
-     No Contributor makes additional grants as a result of Your choice to
-     distribute the Covered Software under a subsequent version of this
-     License (see Section 10.2) or under the terms of a Secondary License (if
-     permitted under the terms of Section 3.3).
-
-2.5. Representation
-
-     Each Contributor represents that the Contributor believes its
-     Contributions are its original creation(s) or it has sufficient rights to
-     grant the rights to its Contributions conveyed by this License.
-
-2.6. Fair Use
-
-     This License is not intended to limit any rights You have under
-     applicable copyright doctrines of fair use, fair dealing, or other
-     equivalents.
-
-2.7. Conditions
-
-     Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
-     Section 2.1.
-
-
-3. Responsibilities
-
-3.1. Distribution of Source Form
-
-     All distribution of Covered Software in Source Code Form, including any
-     Modifications that You create or to which You contribute, must be under
-     the terms of this License. You must inform recipients that the Source
-     Code Form of the Covered Software is governed by the terms of this
-     License, and how they can obtain a copy of this License. You may not
-     attempt to alter or restrict the recipients' rights in the Source Code
-     Form.
-
-3.2. Distribution of Executable Form
-
-     If You distribute Covered Software in Executable Form then:
-
-     a. such Covered Software must also be made available in Source Code Form,
-        as described in Section 3.1, and You must inform recipients of the
-        Executable Form how they can obtain a copy of such Source Code Form by
-        reasonable means in a timely manner, at a charge no more than the cost
-        of distribution to the recipient; and
-
-     b. You may distribute such Executable Form under the terms of this
-        License, or sublicense it under different terms, provided that the
-        license for the Executable Form does not attempt to limit or alter the
-        recipients' rights in the Source Code Form under this License.
-
-3.3. Distribution of a Larger Work
-
-     You may create and distribute a Larger Work under terms of Your choice,
-     provided that You also comply with the requirements of this License for
-     the Covered Software. If the Larger Work is a combination of Covered
-     Software with a work governed by one or more Secondary Licenses, and the
-     Covered Software is not Incompatible With Secondary Licenses, this
-     License permits You to additionally distribute such Covered Software
-     under the terms of such Secondary License(s), so that the recipient of
-     the Larger Work may, at their option, further distribute the Covered
-     Software under the terms of either this License or such Secondary
-     License(s).
-
-3.4. Notices
-
-     You may not remove or alter the substance of any license notices
-     (including copyright notices, patent notices, disclaimers of warranty, or
-     limitations of liability) contained within the Source Code Form of the
-     Covered Software, except that You may alter any license notices to the
-     extent required to remedy known factual inaccuracies.
-
-3.5. Application of Additional Terms
-
-     You may choose to offer, and to charge a fee for, warranty, support,
-     indemnity or liability obligations to one or more recipients of Covered
-     Software. However, You may do so only on Your own behalf, and not on
-     behalf of any Contributor. You must make it absolutely clear that any
-     such warranty, support, indemnity, or liability obligation is offered by
-     You alone, and You hereby agree to indemnify every Contributor for any
-     liability incurred by such Contributor as a result of warranty, support,
-     indemnity or liability terms You offer. You may include additional
-     disclaimers of warranty and limitations of liability specific to any
-     jurisdiction.
-
-4. Inability to Comply Due to Statute or Regulation
-
-   If it is impossible for You to comply with any of the terms of this License
-   with respect to some or all of the Covered Software due to statute,
-   judicial order, or regulation then You must: (a) comply with the terms of
-   this License to the maximum extent possible; and (b) describe the
-   limitations and the code they affect. Such description must be placed in a
-   text file included with all distributions of the Covered Software under
-   this License. Except to the extent prohibited by statute or regulation,
-   such description must be sufficiently detailed for a recipient of ordinary
-   skill to be able to understand it.
-
-5. Termination
-
-5.1. The rights granted under this License will terminate automatically if You
-     fail to comply with any of its terms. However, if You become compliant,
-     then the rights granted under this License from a particular Contributor
-     are reinstated (a) provisionally, unless and until such Contributor
-     explicitly and finally terminates Your grants, and (b) on an ongoing
-     basis, if such Contributor fails to notify You of the non-compliance by
-     some reasonable means prior to 60 days after You have come back into
-     compliance. Moreover, Your grants from a particular Contributor are
-     reinstated on an ongoing basis if such Contributor notifies You of the
-     non-compliance by some reasonable means, this is the first time You have
-     received notice of non-compliance with this License from such
-     Contributor, and You become compliant prior to 30 days after Your receipt
-     of the notice.
-
-5.2. If You initiate litigation against any entity by asserting a patent
-     infringement claim (excluding declaratory judgment actions,
-     counter-claims, and cross-claims) alleging that a Contributor Version
-     directly or indirectly infringes any patent, then the rights granted to
-     You by any and all Contributors for the Covered Software under Section
-     2.1 of this License shall terminate.
-
-5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
-     license agreements (excluding distributors and resellers) which have been
-     validly granted by You or Your distributors under this License prior to
-     termination shall survive termination.
-
-6. Disclaimer of Warranty
-
-   Covered Software is provided under this License on an "as is" basis,
-   without warranty of any kind, either expressed, implied, or statutory,
-   including, without limitation, warranties that the Covered Software is free
-   of defects, merchantable, fit for a particular purpose or non-infringing.
-   The entire risk as to the quality and performance of the Covered Software
-   is with You. Should any Covered Software prove defective in any respect,
-   You (not any Contributor) assume the cost of any necessary servicing,
-   repair, or correction. This disclaimer of warranty constitutes an essential
-   part of this License. No use of  any Covered Software is authorized under
-   this License except under this disclaimer.
-
-7. Limitation of Liability
-
-   Under no circumstances and under no legal theory, whether tort (including
-   negligence), contract, or otherwise, shall any Contributor, or anyone who
-   distributes Covered Software as permitted above, be liable to You for any
-   direct, indirect, special, incidental, or consequential damages of any
-   character including, without limitation, damages for lost profits, loss of
-   goodwill, work stoppage, computer failure or malfunction, or any and all
-   other commercial damages or losses, even if such party shall have been
-   informed of the possibility of such damages. This limitation of liability
-   shall not apply to liability for death or personal injury resulting from
-   such party's negligence to the extent applicable law prohibits such
-   limitation. Some jurisdictions do not allow the exclusion or limitation of
-   incidental or consequential damages, so this exclusion and limitation may
-   not apply to You.
-
-8. Litigation
-
-   Any litigation relating to this License may be brought only in the courts
-   of a jurisdiction where the defendant maintains its principal place of
-   business and such litigation shall be governed by laws of that
-   jurisdiction, without reference to its conflict-of-law provisions. Nothing
-   in this Section shall prevent a party's ability to bring cross-claims or
-   counter-claims.
-
-9. Miscellaneous
-
-   This License represents the complete agreement concerning the subject
-   matter hereof. If any provision of this License is held to be
-   unenforceable, such provision shall be reformed only to the extent
-   necessary to make it enforceable. Any law or regulation which provides that
-   the language of a contract shall be construed against the drafter shall not
-   be used to construe this License against a Contributor.
-
-
-10. Versions of the License
-
-10.1. New Versions
-
-      Mozilla Foundation is the license steward. Except as provided in Section
-      10.3, no one other than the license steward has the right to modify or
-      publish new versions of this License. Each version will be given a
-      distinguishing version number.
-
-10.2. Effect of New Versions
-
-      You may distribute the Covered Software under the terms of the version
-      of the License under which You originally received the Covered Software,
-      or under the terms of any subsequent version published by the license
-      steward.
-
-10.3. Modified Versions
-
-      If you create software not governed by this License, and you want to
-      create a new license for such software, you may create and use a
-      modified version of this License if you rename the license and remove
-      any references to the name of the license steward (except to note that
-      such modified license differs from this License).
-
-10.4. Distributing Source Code Form that is Incompatible With Secondary
-      Licenses If You choose to distribute Source Code Form that is
-      Incompatible With Secondary Licenses under the terms of this version of
-      the License, the notice described in Exhibit B of this License must be
-      attached.
-
-Exhibit A - Source Code Form License Notice
-
-      This Source Code Form is subject to the
-      terms of the Mozilla Public License, v.
-      2.0. If a copy of the MPL was not
-      distributed with this file, You can
-      obtain one at
-      http://mozilla.org/MPL/2.0/.
-
-If it is not possible or desirable to put the notice in a particular file,
-then You may include the notice in a location (such as a LICENSE file in a
-relevant directory) where a recipient would be likely to look for such a
-notice.
-
-You may add additional accurate notices of copyright ownership.
-
-Exhibit B - "Incompatible With Secondary Licenses" Notice
-
-      This Source Code Form is "Incompatible
-      With Secondary Licenses", as defined by
-      the Mozilla Public License, v. 2.0.

vendor/github.com/hashicorp/golang-lru/README.md

@@ -1,25 +0,0 @@
-golang-lru
-==========
-
-This provides the `lru` package which implements a fixed-size
-thread safe LRU cache. It is based on the cache in Groupcache.
-
-Documentation
-=============
-
-Full docs are available on [Godoc](http://godoc.org/github.com/hashicorp/golang-lru)
-
-Example
-=======
-
-Using the LRU is very simple:
-
-```go
-l, _ := New(128)
-for i := 0; i < 256; i++ {
-    l.Add(i, nil)
-}
-if l.Len() != 128 {
-    panic(fmt.Sprintf("bad len: %v", l.Len()))
-}
-```

vendor/github.com/hashicorp/golang-lru/arc.go

@@ -1,257 +0,0 @@
-package lru
-
-import (
-	"sync"
-
-	"github.com/hashicorp/golang-lru/simplelru"
-)
-
-// ARCCache is a thread-safe fixed size Adaptive Replacement Cache (ARC).
-// ARC is an enhancement over the standard LRU cache in that tracks both
-// frequency and recency of use. This avoids a burst in access to new
-// entries from evicting the frequently used older entries. It adds some
-// additional tracking overhead to a standard LRU cache, computationally
-// it is roughly 2x the cost, and the extra memory overhead is linear
-// with the size of the cache. ARC has been patented by IBM, but is
-// similar to the TwoQueueCache (2Q) which requires setting parameters.
-type ARCCache struct {
-	size int // Size is the total capacity of the cache
-	p    int // P is the dynamic preference towards T1 or T2
-
-	t1 simplelru.LRUCache // T1 is the LRU for recently accessed items
-	b1 simplelru.LRUCache // B1 is the LRU for evictions from t1
-
-	t2 simplelru.LRUCache // T2 is the LRU for frequently accessed items
-	b2 simplelru.LRUCache // B2 is the LRU for evictions from t2
-
-	lock sync.RWMutex
-}
-
-// NewARC creates an ARC of the given size
-func NewARC(size int) (*ARCCache, error) {
-	// Create the sub LRUs
-	b1, err := simplelru.NewLRU(size, nil)
-	if err != nil {
-		return nil, err
-	}
-	b2, err := simplelru.NewLRU(size, nil)
-	if err != nil {
-		return nil, err
-	}
-	t1, err := simplelru.NewLRU(size, nil)
-	if err != nil {
-		return nil, err
-	}
-	t2, err := simplelru.NewLRU(size, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	// Initialize the ARC
-	c := &ARCCache{
-		size: size,
-		p:    0,
-		t1:   t1,
-		b1:   b1,
-		t2:   t2,
-		b2:   b2,
-	}
-	return c, nil
-}
-
-// Get looks up a key's value from the cache.
-func (c *ARCCache) Get(key interface{}) (value interface{}, ok bool) {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-
-	// If the value is contained in T1 (recent), then
-	// promote it to T2 (frequent)
-	if val, ok := c.t1.Peek(key); ok {
-		c.t1.Remove(key)
-		c.t2.Add(key, val)
-		return val, ok
-	}
-
-	// Check if the value is contained in T2 (frequent)
-	if val, ok := c.t2.Get(key); ok {
-		return val, ok
-	}
-
-	// No hit
-	return nil, false
-}
-
-// Add adds a value to the cache.
-func (c *ARCCache) Add(key, value interface{}) {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-
-	// Check if the value is contained in T1 (recent), and potentially
-	// promote it to frequent T2
-	if c.t1.Contains(key) {
-		c.t1.Remove(key)
-		c.t2.Add(key, value)
-		return
-	}
-
-	// Check if the value is already in T2 (frequent) and update it
-	if c.t2.Contains(key) {
-		c.t2.Add(key, value)
-		return
-	}
-
-	// Check if this value was recently evicted as part of the
-	// recently used list
-	if c.b1.Contains(key) {
-		// T1 set is too small, increase P appropriately
-		delta := 1
-		b1Len := c.b1.Len()
-		b2Len := c.b2.Len()
-		if b2Len > b1Len {
-			delta = b2Len / b1Len
-		}
-		if c.p+delta >= c.size {
-			c.p = c.size
-		} else {
-			c.p += delta
-		}
-
-		// Potentially need to make room in the cache
-		if c.t1.Len()+c.t2.Len() >= c.size {
-			c.replace(false)
-		}
-
-		// Remove from B1
-		c.b1.Remove(key)
-
-		// Add the key to the frequently used list
-		c.t2.Add(key, value)
-		return
-	}
-
-	// Check if this value was recently evicted as part of the
-	// frequently used list
-	if c.b2.Contains(key) {
-		// T2 set is too small, decrease P appropriately
-		delta := 1
-		b1Len := c.b1.Len()
-		b2Len := c.b2.Len()
-		if b1Len > b2Len {
-			delta = b1Len / b2Len
-		}
-		if delta >= c.p {
-			c.p = 0
-		} else {
-			c.p -= delta
-		}
-
-		// Potentially need to make room in the cache
-		if c.t1.Len()+c.t2.Len() >= c.size {
-			c.replace(true)
-		}
-
-		// Remove from B2
-		c.b2.Remove(key)
-
-		// Add the key to the frequently used list
-		c.t2.Add(key, value)
-		return
-	}
-
-	// Potentially need to make room in the cache
-	if c.t1.Len()+c.t2.Len() >= c.size {
-		c.replace(false)
-	}
-
-	// Keep the size of the ghost buffers trim
-	if c.b1.Len() > c.size-c.p {
-		c.b1.RemoveOldest()
-	}
-	if c.b2.Len() > c.p {
-		c.b2.RemoveOldest()
-	}
-
-	// Add to the recently seen list
-	c.t1.Add(key, value)
-	return
-}
-
-// replace is used to adaptively evict from either T1 or T2
-// based on the current learned value of P
-func (c *ARCCache) replace(b2ContainsKey bool) {
-	t1Len := c.t1.Len()
-	if t1Len > 0 && (t1Len > c.p || (t1Len == c.p && b2ContainsKey)) {
-		k, _, ok := c.t1.RemoveOldest()
-		if ok {
-			c.b1.Add(k, nil)
-		}
-	} else {
-		k, _, ok := c.t2.RemoveOldest()
-		if ok {
-			c.b2.Add(k, nil)
-		}
-	}
-}
-
-// Len returns the number of cached entries
-func (c *ARCCache) Len() int {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.t1.Len() + c.t2.Len()
-}
-
-// Keys returns all the cached keys
-func (c *ARCCache) Keys() []interface{} {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-	k1 := c.t1.Keys()
-	k2 := c.t2.Keys()
-	return append(k1, k2...)
-}
-
-// Remove is used to purge a key from the cache
-func (c *ARCCache) Remove(key interface{}) {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-	if c.t1.Remove(key) {
-		return
-	}
-	if c.t2.Remove(key) {
-		return
-	}
-	if c.b1.Remove(key) {
-		return
-	}
-	if c.b2.Remove(key) {
-		return
-	}
-}
-
-// Purge is used to clear the cache
-func (c *ARCCache) Purge() {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-	c.t1.Purge()
-	c.t2.Purge()
-	c.b1.Purge()
-	c.b2.Purge()
-}
-
-// Contains is used to check if the cache contains a key
-// without updating recency or frequency.
-func (c *ARCCache) Contains(key interface{}) bool {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.t1.Contains(key) || c.t2.Contains(key)
-}
-
-// Peek is used to inspect the cache value of a key
-// without updating recency or frequency.
-func (c *ARCCache) Peek(key interface{}) (value interface{}, ok bool) {
-	c.lock.RLock()
-	defer c.lock.RUnlock()
-	if val, ok := c.t1.Peek(key); ok {
-		return val, ok
-	}
-	return c.t2.Peek(key)
-}

vendor/github.com/hashicorp/golang-lru/doc.go

@@ -1,21 +0,0 @@
-// Package lru provides three different LRU caches of varying sophistication.
-//
-// Cache is a simple LRU cache. It is based on the
-// LRU implementation in groupcache:
-// https://github.com/golang/groupcache/tree/master/lru
-//
-// TwoQueueCache tracks frequently used and recently used entries separately.
-// This avoids a burst of accesses from taking out frequently used entries,
-// at the cost of about 2x computational overhead and some extra bookkeeping.
-//
-// ARCCache is an adaptive replacement cache. It tracks recent evictions as
-// well as recent usage in both the frequent and recent caches. Its
-// computational overhead is comparable to TwoQueueCache, but the memory
-// overhead is linear with the size of the cache.
-//
-// ARC has been patented by IBM, so do not use it if that is problematic for
-// your program.
-//
-// All caches in this package take locks while operating, and are therefore
-// thread-safe for consumers.
-package lru

vendor/github.com/hashicorp/golang-lru/go.mod

@@ -1,3 +0,0 @@
-module github.com/hashicorp/golang-lru
-
-go 1.12

vendor/github.com/hashicorp/golang-lru/lru.go

@@ -1,150 +0,0 @@
-package lru
-
-import (
-	"sync"
-
-	"github.com/hashicorp/golang-lru/simplelru"
-)
-
-// Cache is a thread-safe fixed size LRU cache.
-type Cache struct {
-	lru  simplelru.LRUCache
-	lock sync.RWMutex
-}
-
-// New creates an LRU of the given size.
-func New(size int) (*Cache, error) {
-	return NewWithEvict(size, nil)
-}
-
-// NewWithEvict constructs a fixed size cache with the given eviction
-// callback.
-func NewWithEvict(size int, onEvicted func(key interface{}, value interface{})) (*Cache, error) {
-	lru, err := simplelru.NewLRU(size, simplelru.EvictCallback(onEvicted))
-	if err != nil {
-		return nil, err
-	}
-	c := &Cache{
-		lru: lru,
-	}
-	return c, nil
-}
-
-// Purge is used to completely clear the cache.
-func (c *Cache) Purge() {
-	c.lock.Lock()
-	c.lru.Purge()
-	c.lock.Unlock()
-}
-
-// Add adds a value to the cache. Returns true if an eviction occurred.
-func (c *Cache) Add(key, value interface{}) (evicted bool) {
-	c.lock.Lock()
-	evicted = c.lru.Add(key, value)
-	c.lock.Unlock()
-	return evicted
-}
-
-// Get looks up a key's value from the cache.
-func (c *Cache) Get(key interface{}) (value interface{}, ok bool) {
-	c.lock.Lock()
-	value, ok = c.lru.Get(key)
-	c.lock.Unlock()
-	return value, ok
-}
-
-// Contains checks if a key is in the cache, without updating the
-// recent-ness or deleting it for being stale.
-func (c *Cache) Contains(key interface{}) bool {
-	c.lock.RLock()
-	containKey := c.lru.Contains(key)
-	c.lock.RUnlock()
-	return containKey
-}
-
-// Peek returns the key value (or undefined if not found) without updating
-// the "recently used"-ness of the key.
-func (c *Cache) Peek(key interface{}) (value interface{}, ok bool) {
-	c.lock.RLock()
-	value, ok = c.lru.Peek(key)
-	c.lock.RUnlock()
-	return value, ok
-}
-
-// ContainsOrAdd checks if a key is in the cache without updating the
-// recent-ness or deleting it for being stale, and if not, adds the value.
-// Returns whether found and whether an eviction occurred.
-func (c *Cache) ContainsOrAdd(key, value interface{}) (ok, evicted bool) {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-
-	if c.lru.Contains(key) {
-		return true, false
-	}
-	evicted = c.lru.Add(key, value)
-	return false, evicted
-}
-
-// PeekOrAdd checks if a key is in the cache without updating the
-// recent-ness or deleting it for being stale, and if not, adds the value.
-// Returns whether found and whether an eviction occurred.
-func (c *Cache) PeekOrAdd(key, value interface{}) (previous interface{}, ok, evicted bool) {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-
-	previous, ok = c.lru.Peek(key)
-	if ok {
-		return previous, true, false
-	}
-
-	evicted = c.lru.Add(key, value)
-	return nil, false, evicted
-}
-
-// Remove removes the provided key from the cache.
-func (c *Cache) Remove(key interface{}) (present bool) {
-	c.lock.Lock()
-	present = c.lru.Remove(key)
-	c.lock.Unlock()
-	return
-}
-
-// Resize changes the cache size.
-func (c *Cache) Resize(size int) (evicted int) {
-	c.lock.Lock()
-	evicted = c.lru.Resize(size)
-	c.lock.Unlock()
-	return evicted
-}
-
-// RemoveOldest removes the oldest item from the cache.
-func (c *Cache) RemoveOldest() (key interface{}, value interface{}, ok bool) {
-	c.lock.Lock()
-	key, value, ok = c.lru.RemoveOldest()
-	c.lock.Unlock()
-	return
-}
-
-// GetOldest returns the oldest entry
-func (c *Cache) GetOldest() (key interface{}, value interface{}, ok bool) {
-	c.lock.Lock()
-	key, value, ok = c.lru.GetOldest()
-	c.lock.Unlock()
-	return
-}
-
-// Keys returns a slice of the keys in the cache, from oldest to newest.
-func (c *Cache) Keys() []interface{} {
-	c.lock.RLock()
-	keys := c.lru.Keys()
-	c.lock.RUnlock()
-	return keys
-}
-
-// Len returns the number of items in the cache.
-func (c *Cache) Len() int {
-	c.lock.RLock()
-	length := c.lru.Len()
-	c.lock.RUnlock()
-	return length
-}

vendor/github.com/hashicorp/golang-lru/simplelru/lru.go

@@ -1,177 +0,0 @@
-package simplelru
-
-import (
-	"container/list"
-	"errors"
-)
-
-// EvictCallback is used to get a callback when a cache entry is evicted
-type EvictCallback func(key interface{}, value interface{})
-
-// LRU implements a non-thread safe fixed size LRU cache
-type LRU struct {
-	size      int
-	evictList *list.List
-	items     map[interface{}]*list.Element
-	onEvict   EvictCallback
-}
-
-// entry is used to hold a value in the evictList
-type entry struct {
-	key   interface{}
-	value interface{}
-}
-
-// NewLRU constructs an LRU of the given size
-func NewLRU(size int, onEvict EvictCallback) (*LRU, error) {
-	if size <= 0 {
-		return nil, errors.New("Must provide a positive size")
-	}
-	c := &LRU{
-		size:      size,
-		evictList: list.New(),
-		items:     make(map[interface{}]*list.Element),
-		onEvict:   onEvict,
-	}
-	return c, nil
-}
-
-// Purge is used to completely clear the cache.
-func (c *LRU) Purge() {
-	for k, v := range c.items {
-		if c.onEvict != nil {
-			c.onEvict(k, v.Value.(*entry).value)
-		}
-		delete(c.items, k)
-	}
-	c.evictList.Init()
-}
-
-// Add adds a value to the cache.  Returns true if an eviction occurred.
-func (c *LRU) Add(key, value interface{}) (evicted bool) {
-	// Check for existing item
-	if ent, ok := c.items[key]; ok {
-		c.evictList.MoveToFront(ent)
-		ent.Value.(*entry).value = value
-		return false
-	}
-
-	// Add new item
-	ent := &entry{key, value}
-	entry := c.evictList.PushFront(ent)
-	c.items[key] = entry
-
-	evict := c.evictList.Len() > c.size
-	// Verify size not exceeded
-	if evict {
-		c.removeOldest()
-	}
-	return evict
-}
-
-// Get looks up a key's value from the cache.
-func (c *LRU) Get(key interface{}) (value interface{}, ok bool) {
-	if ent, ok := c.items[key]; ok {
-		c.evictList.MoveToFront(ent)
-		if ent.Value.(*entry) == nil {
-			return nil, false
-		}
-		return ent.Value.(*entry).value, true
-	}
-	return
-}
-
-// Contains checks if a key is in the cache, without updating the recent-ness
-// or deleting it for being stale.
-func (c *LRU) Contains(key interface{}) (ok bool) {
-	_, ok = c.items[key]
-	return ok
-}
-
-// Peek returns the key value (or undefined if not found) without updating
-// the "recently used"-ness of the key.
-func (c *LRU) Peek(key interface{}) (value interface{}, ok bool) {
-	var ent *list.Element
-	if ent, ok = c.items[key]; ok {
-		return ent.Value.(*entry).value, true
-	}
-	return nil, ok
-}
-
-// Remove removes the provided key from the cache, returning if the
-// key was contained.
-func (c *LRU) Remove(key interface{}) (present bool) {
-	if ent, ok := c.items[key]; ok {
-		c.removeElement(ent)
-		return true
-	}
-	return false
-}
-
-// RemoveOldest removes the oldest item from the cache.
-func (c *LRU) RemoveOldest() (key interface{}, value interface{}, ok bool) {
-	ent := c.evictList.Back()
-	if ent != nil {
-		c.removeElement(ent)
-		kv := ent.Value.(*entry)
-		return kv.key, kv.value, true
-	}
-	return nil, nil, false
-}
-
-// GetOldest returns the oldest entry
-func (c *LRU) GetOldest() (key interface{}, value interface{}, ok bool) {
-	ent := c.evictList.Back()
-	if ent != nil {
-		kv := ent.Value.(*entry)
-		return kv.key, kv.value, true
-	}
-	return nil, nil, false
-}
-
-// Keys returns a slice of the keys in the cache, from oldest to newest.
-func (c *LRU) Keys() []interface{} {
-	keys := make([]interface{}, len(c.items))
-	i := 0
-	for ent := c.evictList.Back(); ent != nil; ent = ent.Prev() {
-		keys[i] = ent.Value.(*entry).key
-		i++
-	}
-	return keys
-}
-
-// Len returns the number of items in the cache.
-func (c *LRU) Len() int {
-	return c.evictList.Len()
-}
-
-// Resize changes the cache size.
-func (c *LRU) Resize(size int) (evicted int) {
-	diff := c.Len() - size
-	if diff < 0 {
-		diff = 0
-	}
-	for i := 0; i < diff; i++ {
-		c.removeOldest()
-	}
-	c.size = size
-	return diff
-}
-
-// removeOldest removes the oldest item from the cache.
-func (c *LRU) removeOldest() {
-	ent := c.evictList.Back()
-	if ent != nil {
-		c.removeElement(ent)
-	}
-}
-
-// removeElement is used to remove a given list element from the cache
-func (c *LRU) removeElement(e *list.Element) {
-	c.evictList.Remove(e)
-	kv := e.Value.(*entry)
-	delete(c.items, kv.key)
-	if c.onEvict != nil {
-		c.onEvict(kv.key, kv.value)
-	}
-}

vendor/github.com/hashicorp/golang-lru/simplelru/lru_interface.go

@@ -1,39 +0,0 @@
-package simplelru
-
-// LRUCache is the interface for simple LRU cache.
-type LRUCache interface {
-	// Adds a value to the cache, returns true if an eviction occurred and
-	// updates the "recently used"-ness of the key.
-	Add(key, value interface{}) bool
-
-	// Returns key's value from the cache and
-	// updates the "recently used"-ness of the key. #value, isFound
-	Get(key interface{}) (value interface{}, ok bool)
-
-	// Checks if a key exists in cache without updating the recent-ness.
-	Contains(key interface{}) (ok bool)
-
-	// Returns key's value without updating the "recently used"-ness of the key.
-	Peek(key interface{}) (value interface{}, ok bool)
-
-	// Removes a key from the cache.
-	Remove(key interface{}) bool
-
-	// Removes the oldest entry from cache.
-	RemoveOldest() (interface{}, interface{}, bool)
-
-	// Returns the oldest entry from the cache. #key, value, isFound
-	GetOldest() (interface{}, interface{}, bool)
-
-	// Returns a slice of the keys in the cache, from oldest to newest.
-	Keys() []interface{}
-
-	// Returns the number of items in the cache.
-	Len() int
-
-	// Clears all cache entries.
-	Purge()
-
-  // Resizes cache, returning number evicted
-  Resize(int) int
-}

vendor/github.com/inconshreveable/mousetrap/LICENSE

@@ -0,0 +1,13 @@
+Copyright 2014 Alan Shreve
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

vendor/github.com/inconshreveable/mousetrap/README.md

@@ -0,0 +1,23 @@
+# mousetrap
+
+mousetrap is a tiny library that answers a single question.
+
+On a Windows machine, was the process invoked by someone double clicking on
+the executable file while browsing in explorer?
+
+### Motivation
+
+Windows developers unfamiliar with command line tools will often "double-click"
+the executable for a tool. Because most CLI tools print the help and then exit
+when invoked without arguments, this is often very frustrating for those users.
+
+mousetrap provides a way to detect these invocations so that you can provide
+more helpful behavior and instructions on how to run the CLI tool. To see what
+this looks like, both from an organizational and a technical perspective, see
+https://inconshreveable.com/09-09-2014/sweat-the-small-stuff/
+
+### The interface
+
+The library exposes a single interface:
+
+    func StartedByExplorer() (bool)

vendor/github.com/inconshreveable/mousetrap/trap_others.go

@@ -0,0 +1,15 @@
+// +build !windows
+
+package mousetrap
+
+// StartedByExplorer returns true if the program was invoked by the user
+// double-clicking on the executable from explorer.exe
+//
+// It is conservative and returns false if any of the internal calls fail.
+// It does not guarantee that the program was run from a terminal. It only can tell you
+// whether it was launched from explorer.exe
+//
+// On non-Windows platforms, it always returns false.
+func StartedByExplorer() bool {
+	return false
+}

vendor/github.com/inconshreveable/mousetrap/trap_windows.go

@@ -0,0 +1,98 @@
+// +build windows
+// +build !go1.4
+
+package mousetrap
+
+import (
+	"fmt"
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+const (
+	// defined by the Win32 API
+	th32cs_snapprocess uintptr = 0x2
+)
+
+var (
+	kernel                   = syscall.MustLoadDLL("kernel32.dll")
+	CreateToolhelp32Snapshot = kernel.MustFindProc("CreateToolhelp32Snapshot")
+	Process32First           = kernel.MustFindProc("Process32FirstW")
+	Process32Next            = kernel.MustFindProc("Process32NextW")
+)
+
+// ProcessEntry32 structure defined by the Win32 API
+type processEntry32 struct {
+	dwSize              uint32
+	cntUsage            uint32
+	th32ProcessID       uint32
+	th32DefaultHeapID   int
+	th32ModuleID        uint32
+	cntThreads          uint32
+	th32ParentProcessID uint32
+	pcPriClassBase      int32
+	dwFlags             uint32
+	szExeFile           [syscall.MAX_PATH]uint16
+}
+
+func getProcessEntry(pid int) (pe *processEntry32, err error) {
+	snapshot, _, e1 := CreateToolhelp32Snapshot.Call(th32cs_snapprocess, uintptr(0))
+	if snapshot == uintptr(syscall.InvalidHandle) {
+		err = fmt.Errorf("CreateToolhelp32Snapshot: %v", e1)
+		return
+	}
+	defer syscall.CloseHandle(syscall.Handle(snapshot))
+
+	var processEntry processEntry32
+	processEntry.dwSize = uint32(unsafe.Sizeof(processEntry))
+	ok, _, e1 := Process32First.Call(snapshot, uintptr(unsafe.Pointer(&processEntry)))
+	if ok == 0 {
+		err = fmt.Errorf("Process32First: %v", e1)
+		return
+	}
+
+	for {
+		if processEntry.th32ProcessID == uint32(pid) {
+			pe = &processEntry
+			return
+		}
+
+		ok, _, e1 = Process32Next.Call(snapshot, uintptr(unsafe.Pointer(&processEntry)))
+		if ok == 0 {
+			err = fmt.Errorf("Process32Next: %v", e1)
+			return
+		}
+	}
+}
+
+func getppid() (pid int, err error) {
+	pe, err := getProcessEntry(os.Getpid())
+	if err != nil {
+		return
+	}
+
+	pid = int(pe.th32ParentProcessID)
+	return
+}
+
+// StartedByExplorer returns true if the program was invoked by the user double-clicking
+// on the executable from explorer.exe
+//
+// It is conservative and returns false if any of the internal calls fail.
+// It does not guarantee that the program was run from a terminal. It only can tell you
+// whether it was launched from explorer.exe
+func StartedByExplorer() bool {
+	ppid, err := getppid()
+	if err != nil {
+		return false
+	}
+
+	pe, err := getProcessEntry(ppid)
+	if err != nil {
+		return false
+	}
+
+	name := syscall.UTF16ToString(pe.szExeFile[:])
+	return name == "explorer.exe"
+}

vendor/github.com/inconshreveable/mousetrap/trap_windows_1.4.go

@@ -0,0 +1,46 @@
+// +build windows
+// +build go1.4
+
+package mousetrap
+
+import (
+	"os"
+	"syscall"
+	"unsafe"
+)
+
+func getProcessEntry(pid int) (*syscall.ProcessEntry32, error) {
+	snapshot, err := syscall.CreateToolhelp32Snapshot(syscall.TH32CS_SNAPPROCESS, 0)
+	if err != nil {
+		return nil, err
+	}
+	defer syscall.CloseHandle(snapshot)
+	var procEntry syscall.ProcessEntry32
+	procEntry.Size = uint32(unsafe.Sizeof(procEntry))
+	if err = syscall.Process32First(snapshot, &procEntry); err != nil {
+		return nil, err
+	}
+	for {
+		if procEntry.ProcessID == uint32(pid) {
+			return &procEntry, nil
+		}
+		err = syscall.Process32Next(snapshot, &procEntry)
+		if err != nil {
+			return nil, err
+		}
+	}
+}
+
+// StartedByExplorer returns true if the program was invoked by the user double-clicking
+// on the executable from explorer.exe
+//
+// It is conservative and returns false if any of the internal calls fail.
+// It does not guarantee that the program was run from a terminal. It only can tell you
+// whether it was launched from explorer.exe
+func StartedByExplorer() bool {
+	pe, err := getProcessEntry(os.Getppid())
+	if err != nil {
+		return false
+	}
+	return "explorer.exe" == syscall.UTF16ToString(pe.ExeFile[:])
+}