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rbd: add aws-sts-metdata encryption type

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With Amazon STS and kubernetes cluster is configured with
OIDC identity provider, credentials to access Amazon KMS
can be fetched using oidc-token(serviceaccount token).
Each tenant/namespace needs to create a secret with aws region,
role and CMK ARN.
Ceph-CSI will assume the given role with oidc token and access
aws KMS, with given CMK to encrypt/decrypt DEK which will stored
in the image metdata.

Refer: https://docs.aws.amazon.com/STS/latest/APIReference/welcome.html
Resolves: #2879

Signed-off-by: Rakshith R <rar@redhat.com>
This commit is contained in:
Rakshith R 2022-03-02 16:00:48 +05:30 committed by mergify[bot]
parent 13dcc89ac8
commit 4f0bb2315b
217 changed files with 24757 additions and 72 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
charts/ceph-csi-rbd/templates/nodeplugin-daemonset.yaml
View File

@ -133,6 +133,9 @@ spec:
mountPath: /tmp/csi/keys
- name: ceph-logdir
mountPath: /var/log/ceph
- name: oidc-token
mountPath: /var/run/secrets/tokens
readOnly: true
resources:
{{ toYaml .Values.nodeplugin.plugin.resources | indent 12 }}
{{- if .Values.nodeplugin.httpMetrics.enabled }}
@ -221,6 +224,13 @@ spec:
emptyDir: {
medium: "Memory"
}
- name: oidc-token
projected:
sources:
- serviceAccountToken:
path: oidc-token
expirationSeconds: 3600
audience: ceph-csi-kms
{{- if .Values.nodeplugin.affinity }}
affinity:
{{ toYaml .Values.nodeplugin.affinity | indent 8 -}}

10
charts/ceph-csi-rbd/templates/provisioner-deployment.yaml
View File

@ -183,6 +183,9 @@ spec:
mountPath: /etc/ceph-csi-encryption-kms-config/
- name: keys-tmp-dir
mountPath: /tmp/csi/keys
- name: oidc-token
mountPath: /var/run/secrets/tokens
readOnly: true
resources:
{{ toYaml .Values.nodeplugin.plugin.resources | indent 12 }}
{{- if .Values.provisioner.deployController }}
@ -271,6 +274,13 @@ spec:
emptyDir: {
medium: "Memory"
}
- name: oidc-token
projected:
sources:
- serviceAccountToken:
path: oidc-token
expirationSeconds: 3600
audience: ceph-csi-kms
{{- if .Values.provisioner.affinity }}
affinity:
{{ toYaml .Values.provisioner.affinity | indent 8 -}}

10
deploy/rbd/kubernetes/csi-rbdplugin-provisioner.yaml
View File

@ -163,6 +163,9 @@ spec:
mountPath: /tmp/csi/keys
- name: ceph-config
mountPath: /etc/ceph/
- name: oidc-token
mountPath: /var/run/secrets/tokens
readOnly: true
- name: csi-rbdplugin-controller
# for stable functionality replace canary with latest release version
image: quay.io/cephcsi/cephcsi:canary
@ -231,3 +234,10 @@ spec:
emptyDir: {
medium: "Memory"
}
- name: oidc-token
projected:
sources:
- serviceAccountToken:
path: oidc-token
expirationSeconds: 3600
audience: ceph-csi-kms

10
deploy/rbd/kubernetes/csi-rbdplugin.yaml
View File

@ -118,6 +118,9 @@ spec:
mountPath: /var/log/ceph
- name: ceph-config
mountPath: /etc/ceph/
- name: oidc-token
mountPath: /var/run/secrets/tokens
readOnly: true
- name: liveness-prometheus
securityContext:
privileged: true
@ -189,6 +192,13 @@ spec:
emptyDir: {
medium: "Memory"
}
- name: oidc-token
projected:
sources:
- serviceAccountToken:
path: oidc-token
expirationSeconds: 3600
audience: ceph-csi-kms
---
# This is a service to expose the liveness metrics
apiVersion: v1

28
docs/deploy-rbd.md
View File

@ -382,6 +382,34 @@ the AWS KMS is expected to contain:
This Secret is expected to be created by the administrator who deployed
Ceph-CSI.
#### Configuring Amazon KMS with Amazon STS
Ceph-CSI can be configured to use
[Amazon STS](https://docs.aws.amazon.com/STS/latest/APIReference/welcome.html),
when kubernetes cluster is configured with OIDC identity provider to fetch
credentials to access Amazon KMS. Other functionalities is the same as
[Amazon KMS encryption](#configuring-amazon-kms).
There are a few settings that need to be included in the [KMS configuration
file](../examples/kms/vault/kms-config.yaml):
1. `encryptionKMSType`: should be set to `aws-sts-metadata`.
1. `secretName`: name of the Kubernetes Secret (in the Namespace where
PVC is created) which contains the credentials for communicating with
AWS. This defaults to `ceph-csi-aws-credentials`.
The [Secret with credentials](../examples/kms/vault/aws-sts-credentials.yaml) for
the AWS KMS is expected to contain:
1. `awsRoleARN`: Role which will be used access credentials from AWS STS
and access AWS KMS for encryption.
1. `awsCMKARN`: Custom Master Key, ARN for the key used to encrypt the
passphrase
1. `awsRegion`: the region where the AWS STS and KMS service is available.
This Secret is expected to be created by the tenant/user in each namespace where
Ceph-CSI is used to create encrypted rbd volumes.
### Encryption prerequisites
In order for encryption to work you need to make sure that `dm-crypt` kernel

13
examples/kms/vault/aws-sts-credentials.yaml Normal file
View File

@ -0,0 +1,13 @@
---
# This is an example Kubernetes Secret that can be created in the Kubernetes
# Namespace where Ceph-CSI is deployed. The contents of this Secret will be
# used to fetch credentials from Amazon STS and use it connect to the
# Amazon KMS.
apiVersion: v1
kind: Secret
metadata:
name: ceph-csi-aws-credentials
stringData:
awsRoleARN: "arn:aws:iam::111122223333:role/aws-sts-kms"
awsCMKARN: "arn:aws:kms:us-west-2:111123:key/1234cd-12ab-34cd-56ef-123590ab"
awsRegion: "us-west-2"

5
examples/kms/vault/csi-kms-connection-details.yaml
View File

@ -69,5 +69,10 @@ data:
"IBM_KP_TOKEN_URL": "https://iam.cloud.ibm.com/oidc/token",
"IBM_KP_REGION": "us-south-2",
}
aws-sts-metadata-test: |-
{
"encryptionKMSType": "aws-sts-metadata",
"secretName": "ceph-csi-aws-credentials"
}
metadata:
name: csi-kms-connection-details

4
examples/kms/vault/kms-config.yaml
View File

@ -96,6 +96,10 @@ data:
"secretName": "ceph-csi-kp-credentials",
"keyProtectRegionKey": "us-south-2",
"keyProtectServiceInstanceID": "7abef064-01dd-4237-9ea5-8b3890970be3"
},
"aws-sts-metadata-test": {
"encryptionKMSType": "aws-sts-metadata",
"secretName": "ceph-csi-aws-credentials"
}
}
metadata:

8
go.mod
View File

@ -5,6 +5,7 @@ go 1.17
require (
github.com/IBM/keyprotect-go-client v0.7.0
github.com/aws/aws-sdk-go v1.43.18
github.com/aws/aws-sdk-go-v2/service/sts v1.15.0
github.com/ceph/ceph-csi/api v0.0.0-00010101000000-000000000000
github.com/ceph/go-ceph v0.14.0
github.com/container-storage-interface/spec v1.5.0
@ -43,6 +44,11 @@ require (
require (
github.com/armon/go-metrics v0.3.9 // indirect
github.com/armon/go-radix v1.0.0 // indirect
github.com/aws/aws-sdk-go-v2 v1.14.0 // indirect
github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.5 // indirect
github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.3.0 // indirect
github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.8.0 // indirect
github.com/aws/smithy-go v1.11.0 // indirect
github.com/beorn7/perks v1.0.1 // indirect
github.com/bits-and-blooms/bitset v1.2.0 // indirect
github.com/blang/semver v3.5.1+incompatible // indirect
@ -61,7 +67,7 @@ require (
github.com/gogo/protobuf v1.3.2 // indirect
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
github.com/golang/snappy v0.0.4 // indirect
github.com/google/go-cmp v0.5.5 // indirect
github.com/google/go-cmp v0.5.7 // indirect
github.com/google/gofuzz v1.1.0 // indirect
github.com/google/uuid v1.1.2 // indirect
github.com/googleapis/gnostic v0.5.5 // indirect

15
go.sum
View File

@ -140,6 +140,18 @@ github.com/aws/aws-sdk-go v1.35.24/go.mod h1:tlPOdRjfxPBpNIwqDj61rmsnA85v9jc0Ps9
github.com/aws/aws-sdk-go v1.38.49/go.mod h1:hcU610XS61/+aQV88ixoOzUoG7v3b31pl2zKMmprdro=
github.com/aws/aws-sdk-go v1.43.18 h1:nwLaIz2m1f7YBEMNyEc6bBB276AIEaGaIQrc2G9h4zY=
github.com/aws/aws-sdk-go v1.43.18/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo=
github.com/aws/aws-sdk-go-v2 v1.14.0 h1:IzSYBJHu0ZdUi27kIW6xVrs0eSxI4AzwbenzfXhhVs4=
github.com/aws/aws-sdk-go-v2 v1.14.0/go.mod h1:ZA3Y8V0LrlWj63MQAnRHgKf/5QB//LSZCPNWlWrNGLU=
github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.5 h1:+phazLmKkjBYhFTsGYH9J7jgnA8+Aer2yE4QeS4zn6A=
github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.5/go.mod h1:2hXc8ooJqF2nAznsbJQIn+7h851/bu8GVC80OVTTqf8=
github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.3.0 h1:PO+HNeJBeRK0yVD9CQZ+VUrYfd5sXqS7YdPYHHcDkR4=
github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.3.0/go.mod h1:miRSv9l093jX/t/j+mBCaLqFHo9xKYzJ7DGm1BsGoJM=
github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.8.0 h1:JNMALY8/ZnFsfAzBHtC4gq8JeZPANmIoI2VaBgYzbf8=
github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.8.0/go.mod h1:rBDLgXDAwHOfxZKLRDl8OGTPzFDC+a2pLqNNj8+QwfI=
github.com/aws/aws-sdk-go-v2/service/sts v1.15.0 h1:zC/vHxWTlqZ0tIPJItg0zWHsa25cH7tXsUknSGcH39o=
github.com/aws/aws-sdk-go-v2/service/sts v1.15.0/go.mod h1:E264g2Gl5U9KTGzmd8ypGEAoh75VmqyuA/Ox5O1eRE4=
github.com/aws/smithy-go v1.11.0 h1:nOfSDwiiH232f90OuevPnAEQO5ZqH+xnn8uGVsvBCw4=
github.com/aws/smithy-go v1.11.0/go.mod h1:3xHYmszWVx2c0kIwQeEVf9uSm4fYZt67FBJnwub1bgM=
github.com/baiyubin/aliyun-sts-go-sdk v0.0.0-20180326062324-cfa1a18b161f/go.mod h1:AuiFmCCPBSrqvVMvuqFuk0qogytodnVFVSN5CeJB8Gc=
github.com/benbjohnson/clock v1.0.3/go.mod h1:bGMdMPoPVvcYyt1gHDf4J2KE153Yf9BuiUKYMaxlTDM=
github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
@ -437,8 +449,9 @@ github.com/google/go-cmp v0.5.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.3/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.7 h1:81/ik6ipDQS2aGcBfIN5dHDB36BwrStyeAQquSYCV4o=
github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8/DtOE=
github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+umXrS52loVEgC2AApnigrVQ=
github.com/google/go-metrics-stackdriver v0.2.0/go.mod h1:KLcPyp3dWJAFD+yHisGlJSZktIsTjb50eB72U2YZ9K0=
github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=

236
internal/kms/aws_sts_metadata.go Normal file
View File

@ -0,0 +1,236 @@
/*
Copyright 2022 The Ceph-CSI Authors.
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.
*/
package kms
import (
"context"
"encoding/base64"
"errors"
"fmt"
"os"
"github.com/ceph/ceph-csi/internal/util/k8s"
awsSTS "github.com/aws/aws-sdk-go-v2/service/sts"
"github.com/aws/aws-sdk-go/aws"
awsCreds "github.com/aws/aws-sdk-go/aws/credentials"
awsSession "github.com/aws/aws-sdk-go/aws/session"
awsKMS "github.com/aws/aws-sdk-go/service/kms"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
const (
kmsTypeAWSSTSMetadata = "aws-sts-metadata"
// awsRoleSessionName is the name of the role session to connect with aws STS.
awsRoleSessionName = "ceph-csi-aws-sts-metadata"
// awsMetadataDefaultSecretsName is the default name of the Kubernetes Secret
// that contains the credentials to access the Amazon KMS. The name of
// the Secret can be configured by setting the `kmsSecretName`
// option.
//
// #nosec:G101, value not credential, just references token.
awsSTSMetadataDefaultSecretsName = "ceph-csi-aws-credentials"
// awsSTSSecretNameKey is the key for the secret name in the config map.
awsSTSSecretNameKey = "secretName"
// The following options are part of the Kubernetes Secrets.
//
// #nosec:G101, value not credential, just configuration keys.
awsSTSRoleARNKey = "awsRoleARN"
awsSTSCMKARNKey = "awsCMKARN"
awsSTSRegionKey = "awsRegion"
// tokenFilePath is the path to the file containing the OIDC token.
//
// #nosec:G101, value not credential, just path to the token.
tokenFilePath = "/var/run/secrets/tokens/oidc-token"
)
var _ = RegisterProvider(Provider{
UniqueID: kmsTypeAWSSTSMetadata,
Initializer: initAWSSTSMetadataKMS,
})
type awsSTSMetadataKMS struct {
awsMetadataKMS
// AWS STS configuration options
role string
}
func initAWSSTSMetadataKMS(args ProviderInitArgs) (EncryptionKMS, error) {
kms := &awsSTSMetadataKMS{
awsMetadataKMS: awsMetadataKMS{
namespace: args.Tenant,
},
}
// get secret name if set, else use default.
err := setConfigString(&kms.secretName, args.Config, awsSTSSecretNameKey)
if errors.Is(err, errConfigOptionInvalid) {
return nil, err
} else if errors.Is(err, errConfigOptionMissing) {
kms.secretName = awsSTSMetadataDefaultSecretsName
}
// read the Kubernetes Secret with aws region, role & cmk ARN.
secrets, err := kms.getSecrets()
if err != nil {
return nil, fmt.Errorf("failed to get secrets: %w", err)
}
var found bool
kms.role, found = secrets[awsSTSRoleARNKey]
if !found {
return nil, fmt.Errorf("%w: %s", errConfigOptionMissing, awsSTSRoleARNKey)
}
kms.cmk, found = secrets[awsSTSCMKARNKey]
if !found {
return nil, fmt.Errorf("%w: %s", errConfigOptionMissing, awsSTSCMKARNKey)
}
kms.region, found = secrets[awsSTSRegionKey]
if !found {
return nil, fmt.Errorf("%w: %s", errConfigOptionMissing, awsSTSRegionKey)
}
return kms, nil
}
// getSecrets returns required STS configuration options from the Kubernetes Secret.
func (as *awsSTSMetadataKMS) getSecrets() (map[string]string, error) {
c, err := k8s.NewK8sClient()
if err != nil {
return nil, fmt.Errorf("failed to connect to Kubernetes to "+
"get Secret %s/%s: %w", as.namespace, as.secretName, err)
}
secret, err := c.CoreV1().Secrets(as.namespace).Get(context.TODO(),
as.secretName, metav1.GetOptions{})
if err != nil {
return nil, fmt.Errorf("failed to get Secret %s/%s: %w",
as.namespace, as.secretName, err)
}
config := make(map[string]string)
for k, v := range secret.Data {
switch k {
case awsSTSRoleARNKey, awsSTSRegionKey, awsSTSCMKARNKey:
config[k] = string(v)
default:
return nil, fmt.Errorf("unsupported option for KMS "+
"provider %q: %s", kmsTypeAWSMetadata, k)
}
}
return config, nil
}
// getWebIdentityToken returns the web identity token from the file.
func (as *awsSTSMetadataKMS) getWebIdentityToken() (string, error) {
buf, err := os.ReadFile(tokenFilePath)
if err != nil {
return "", fmt.Errorf("failed to read oidc token file %q: %w",
tokenFilePath, err)
}
return string(buf), nil
}
// getServiceWithSTS returns a new awsSession established with the STS.
func (as *awsSTSMetadataKMS) getServiceWithSTS() (*awsKMS.KMS, error) {
webIdentityToken, err := as.getWebIdentityToken()
if err != nil {
return nil, fmt.Errorf("failed to get web identity token: %w", err)
}
client := awsSTS.New(awsSTS.Options{
Region: as.region,
})
output, err := client.AssumeRoleWithWebIdentity(context.TODO(),
&awsSTS.AssumeRoleWithWebIdentityInput{
RoleArn: aws.String(as.role),
RoleSessionName: aws.String(awsRoleSessionName),
WebIdentityToken: aws.String(webIdentityToken),
})
if err != nil {
return nil, fmt.Errorf("failed to assume role with web identity token: %w", err)
}
creds := awsCreds.NewStaticCredentials(*output.Credentials.AccessKeyId,
*output.Credentials.SecretAccessKey, *output.Credentials.SessionToken)
sess, err := awsSession.NewSessionWithOptions(awsSession.Options{
SharedConfigState: awsSession.SharedConfigDisable,
Config: aws.Config{
Credentials: creds,
Region: &as.region,
},
})
if err != nil {
return nil, fmt.Errorf("failed to create AWS session: %w", err)
}
return awsKMS.New(sess), nil
}
// EncryptDEK uses the Amazon KMS and the configured CMK to encrypt the DEK.
func (as *awsSTSMetadataKMS) EncryptDEK(_, plainDEK string) (string, error) {
svc, err := as.getServiceWithSTS()
if err != nil {
return "", fmt.Errorf("failed to get KMS service: %w", err)
}
result, err := svc.Encrypt(&awsKMS.EncryptInput{
KeyId: aws.String(as.cmk),
Plaintext: []byte(plainDEK),
})
if err != nil {
return "", fmt.Errorf("failed to encrypt DEK: %w", err)
}
// base64 encode the encrypted DEK, so that storing it should not have
// issues
return base64.StdEncoding.EncodeToString(result.CiphertextBlob), nil
}
// DecryptDEK uses the Amazon KMS and the configured CMK to decrypt the DEK.
func (as *awsSTSMetadataKMS) DecryptDEK(_, encryptedDEK string) (string, error) {
svc, err := as.getServiceWithSTS()
if err != nil {
return "", fmt.Errorf("failed to get KMS service: %w", err)
}
ciphertextBlob, err := base64.StdEncoding.DecodeString(encryptedDEK)
if err != nil {
return "", fmt.Errorf("failed to decode base64 cipher: %w",
err)
}
result, err := svc.Decrypt(&awsKMS.DecryptInput{
CiphertextBlob: ciphertextBlob,
})
if err != nil {
return "", fmt.Errorf("failed to decrypt DEK: %w", err)
}
return string(result.Plaintext), nil
}

29
internal/kms/aws_sts_metadata_test.go Normal file
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@ -0,0 +1,29 @@
/*
Copyright 2022 The Ceph-CSI Authors.
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.
*/
package kms
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestAWSSTSMetadataKMSRegistered(t *testing.T) {
t.Parallel()
_, ok := kmsManager.providers[kmsTypeAWSSTSMetadata]
assert.True(t, ok)
}

202
vendor/github.com/aws/aws-sdk-go-v2/LICENSE.txt generated vendored Normal file
View File

@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
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the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
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submitted to Licensor for inclusion in the Work by the copyright owner
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3
vendor/github.com/aws/aws-sdk-go-v2/NOTICE.txt generated vendored Normal file
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AWS SDK for Go
Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
Copyright 2014-2015 Stripe, Inc.

166
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package aws
import (
"net/http"
"github.com/aws/smithy-go/logging"
"github.com/aws/smithy-go/middleware"
)
// HTTPClient provides the interface to provide custom HTTPClients. Generally
// *http.Client is sufficient for most use cases. The HTTPClient should not
// follow redirects.
type HTTPClient interface {
Do(*http.Request) (*http.Response, error)
}
// A Config provides service configuration for service clients.
type Config struct {
// The region to send requests to. This parameter is required and must
// be configured globally or on a per-client basis unless otherwise
// noted. A full list of regions is found in the "Regions and Endpoints"
// document.
//
// See http://docs.aws.amazon.com/general/latest/gr/rande.html for
// information on AWS regions.
Region string
// The credentials object to use when signing requests. Defaults to a
// chain of credential providers to search for credentials in environment
// variables, shared credential file, and EC2 Instance Roles.
Credentials CredentialsProvider
// The HTTP Client the SDK's API clients will use to invoke HTTP requests.
// The SDK defaults to a BuildableClient allowing API clients to create
// copies of the HTTP Client for service specific customizations.
//
// Use a (*http.Client) for custom behavior. Using a custom http.Client
// will prevent the SDK from modifying the HTTP client.
HTTPClient HTTPClient
// An endpoint resolver that can be used to provide or override an endpoint
// for the given service and region.
//
// See the `aws.EndpointResolver` documentation for additional usage
// information.
//
// Deprecated: See Config.EndpointResolverWithOptions
EndpointResolver EndpointResolver
// An endpoint resolver that can be used to provide or override an endpoint
// for the given service and region.
//
// When EndpointResolverWithOptions is specified, it will be used by a
// service client rather than using EndpointResolver if also specified.
//
// See the `aws.EndpointResolverWithOptions` documentation for additional
// usage information.
EndpointResolverWithOptions EndpointResolverWithOptions
// RetryMaxAttempts specifies the maximum number attempts an API client
// will call an operation that fails with a retryable error.
//
// API Clients will only use this value to construct a retryer if the
// Config.Retryer member is not nil. This value will be ignored if
// Retryer is not nil.
RetryMaxAttempts int
// RetryMode specifies the retry model the API client will be created with.
//
// API Clients will only use this value to construct a retryer if the
// Config.Retryer member is not nil. This value will be ignored if
// Retryer is not nil.
RetryMode RetryMode
// Retryer is a function that provides a Retryer implementation. A Retryer
// guides how HTTP requests should be retried in case of recoverable
// failures. When nil the API client will use a default retryer.
//
// In general, the provider function should return a new instance of a
// Retryer if you are attempting to provide a consistent Retryer
// configuration across all clients. This will ensure that each client will
// be provided a new instance of the Retryer implementation, and will avoid
// issues such as sharing the same retry token bucket across services.
//
// If not nil, RetryMaxAttempts, and RetryMode will be ignored by API
// clients.
Retryer func() Retryer
// ConfigSources are the sources that were used to construct the Config.
// Allows for additional configuration to be loaded by clients.
ConfigSources []interface{}
// APIOptions provides the set of middleware mutations modify how the API
// client requests will be handled. This is useful for adding additional
// tracing data to a request, or changing behavior of the SDK's client.
APIOptions []func(*middleware.Stack) error
// The logger writer interface to write logging messages to. Defaults to
// standard error.
Logger logging.Logger
// Configures the events that will be sent to the configured logger. This
// can be used to configure the logging of signing, retries, request, and
// responses of the SDK clients.
//
// See the ClientLogMode type documentation for the complete set of logging
// modes and available configuration.
ClientLogMode ClientLogMode
// The configured DefaultsMode. If not specified, service clients will
// default to legacy.
//
// Supported modes are: auto, cross-region, in-region, legacy, mobile,
// standard
DefaultsMode DefaultsMode
// The RuntimeEnvironment configuration, only populated if the DefaultsMode
// is set to DefaultsModeAuto and is initialized by
// `config.LoadDefaultConfig`. You should not populate this structure
// programmatically, or rely on the values here within your applications.
RuntimeEnvironment RuntimeEnvironment
}
// NewConfig returns a new Config pointer that can be chained with builder
// methods to set multiple configuration values inline without using pointers.
func NewConfig() *Config {
return &Config{}
}
// Copy will return a shallow copy of the Config object. If any additional
// configurations are provided they will be merged into the new config returned.
func (c Config) Copy() Config {
cp := c
return cp
}
// EndpointDiscoveryEnableState indicates if endpoint discovery is
// enabled, disabled, auto or unset state.
//
// Default behavior (Auto or Unset) indicates operations that require endpoint
// discovery will use Endpoint Discovery by default. Operations that
// optionally use Endpoint Discovery will not use Endpoint Discovery
// unless EndpointDiscovery is explicitly enabled.
type EndpointDiscoveryEnableState uint
// Enumeration values for EndpointDiscoveryEnableState
const (
// EndpointDiscoveryUnset represents EndpointDiscoveryEnableState is unset.
// Users do not need to use this value explicitly. The behavior for unset
// is the same as for EndpointDiscoveryAuto.
EndpointDiscoveryUnset EndpointDiscoveryEnableState = iota
// EndpointDiscoveryAuto represents an AUTO state that allows endpoint
// discovery only when required by the api. This is the default
// configuration resolved by the client if endpoint discovery is neither
// enabled or disabled.
EndpointDiscoveryAuto // default state
// EndpointDiscoveryDisabled indicates client MUST not perform endpoint
// discovery even when required.
EndpointDiscoveryDisabled
// EndpointDiscoveryEnabled indicates client MUST always perform endpoint
// discovery if supported for the operation.
EndpointDiscoveryEnabled
)

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vendor/github.com/aws/aws-sdk-go-v2/aws/context.go generated vendored Normal file
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package aws
import (
"context"
"time"
)
type suppressedContext struct {
context.Context
}
func (s *suppressedContext) Deadline() (deadline time.Time, ok bool) {
return time.Time{}, false
}
func (s *suppressedContext) Done() <-chan struct{} {
return nil
}
func (s *suppressedContext) Err() error {
return nil
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/credential_cache.go generated vendored Normal file
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package aws
import (
"context"
"sync/atomic"
"time"
sdkrand "github.com/aws/aws-sdk-go-v2/internal/rand"
"github.com/aws/aws-sdk-go-v2/internal/sync/singleflight"
)
// CredentialsCacheOptions are the options
type CredentialsCacheOptions struct {
// ExpiryWindow will allow the credentials to trigger refreshing prior to
// the credentials actually expiring. This is beneficial so race conditions
// with expiring credentials do not cause request to fail unexpectedly
// due to ExpiredTokenException exceptions.
//
// An ExpiryWindow of 10s would cause calls to IsExpired() to return true
// 10 seconds before the credentials are actually expired. This can cause an
// increased number of requests to refresh the credentials to occur.
//
// If ExpiryWindow is 0 or less it will be ignored.
ExpiryWindow time.Duration
// ExpiryWindowJitterFrac provides a mechanism for randomizing the expiration of credentials
// within the configured ExpiryWindow by a random percentage. Valid values are between 0.0 and 1.0.
//
// As an example if ExpiryWindow is 60 seconds and ExpiryWindowJitterFrac is 0.5 then credentials will be set to
// expire between 30 to 60 seconds prior to their actual expiration time.
//
// If ExpiryWindow is 0 or less then ExpiryWindowJitterFrac is ignored.
// If ExpiryWindowJitterFrac is 0 then no randomization will be applied to the window.
// If ExpiryWindowJitterFrac < 0 the value will be treated as 0.
// If ExpiryWindowJitterFrac > 1 the value will be treated as 1.
ExpiryWindowJitterFrac float64
}
// CredentialsCache provides caching and concurrency safe credentials retrieval
// via the provider's retrieve method.
type CredentialsCache struct {
// provider is the CredentialProvider implementation to be wrapped by the CredentialCache.
provider CredentialsProvider
options CredentialsCacheOptions
creds atomic.Value
sf singleflight.Group
}
// NewCredentialsCache returns a CredentialsCache that wraps provider. Provider is expected to not be nil. A variadic
// list of one or more functions can be provided to modify the CredentialsCache configuration. This allows for
// configuration of credential expiry window and jitter.
func NewCredentialsCache(provider CredentialsProvider, optFns ...func(options *CredentialsCacheOptions)) *CredentialsCache {
options := CredentialsCacheOptions{}
for _, fn := range optFns {
fn(&options)
}
if options.ExpiryWindow < 0 {
options.ExpiryWindow = 0
}
if options.ExpiryWindowJitterFrac < 0 {
options.ExpiryWindowJitterFrac = 0
} else if options.ExpiryWindowJitterFrac > 1 {
options.ExpiryWindowJitterFrac = 1
}
return &CredentialsCache{
provider: provider,
options: options,
}
}
// Retrieve returns the credentials. If the credentials have already been
// retrieved, and not expired the cached credentials will be returned. If the
// credentials have not been retrieved yet, or expired the provider's Retrieve
// method will be called.
//
// Returns and error if the provider's retrieve method returns an error.
func (p *CredentialsCache) Retrieve(ctx context.Context) (Credentials, error) {
if creds := p.getCreds(); creds != nil {
return *creds, nil
}
resCh := p.sf.DoChan("", func() (interface{}, error) {
return p.singleRetrieve(&suppressedContext{ctx})
})
select {
case res := <-resCh:
return res.Val.(Credentials), res.Err
case <-ctx.Done():
return Credentials{}, &RequestCanceledError{Err: ctx.Err()}
}
}
func (p *CredentialsCache) singleRetrieve(ctx context.Context) (interface{}, error) {
if creds := p.getCreds(); creds != nil {
return *creds, nil
}
creds, err := p.provider.Retrieve(ctx)
if err == nil {
if creds.CanExpire {
randFloat64, err := sdkrand.CryptoRandFloat64()
if err != nil {
return Credentials{}, err
}
jitter := time.Duration(randFloat64 * p.options.ExpiryWindowJitterFrac * float64(p.options.ExpiryWindow))
creds.Expires = creds.Expires.Add(-(p.options.ExpiryWindow - jitter))
}
p.creds.Store(&creds)
}
return creds, err
}
func (p *CredentialsCache) getCreds() *Credentials {
v := p.creds.Load()
if v == nil {
return nil
}
c := v.(*Credentials)
if c != nil && c.HasKeys() && !c.Expired() {
return c
}
return nil
}
// Invalidate will invalidate the cached credentials. The next call to Retrieve
// will cause the provider's Retrieve method to be called.
func (p *CredentialsCache) Invalidate() {
p.creds.Store((*Credentials)(nil))
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/credentials.go generated vendored Normal file
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package aws
import (
"context"
"fmt"
"time"
"github.com/aws/aws-sdk-go-v2/internal/sdk"
)
// AnonymousCredentials provides a sentinel CredentialsProvider that should be
// used to instruct the SDK's signing middleware to not sign the request.
//
// Using `nil` credentials when configuring an API client will achieve the same
// result. The AnonymousCredentials type allows you to configure the SDK's
// external config loading to not attempt to source credentials from the shared
// config or environment.
//
// For example you can use this CredentialsProvider with an API client's
// Options to instruct the client not to sign a request for accessing public
// S3 bucket objects.
//
// The following example demonstrates using the AnonymousCredentials to prevent
// SDK's external config loading attempt to resolve credentials.
//
// cfg, err := config.LoadDefaultConfig(context.TODO(),
// config.WithCredentialsProvider(aws.AnonymousCredentials{}),
// )
// if err != nil {
// log.Fatalf("failed to load config, %v", err)
// }
//
// client := s3.NewFromConfig(cfg)
//
// Alternatively you can leave the API client Option's `Credential` member to
// nil. If using the `NewFromConfig` constructor you'll need to explicitly set
// the `Credentials` member to nil, if the external config resolved a
// credential provider.
//
// client := s3.New(s3.Options{
// // Credentials defaults to a nil value.
// })
//
// This can also be configured for specific operations calls too.
//
// cfg, err := config.LoadDefaultConfig(context.TODO())
// if err != nil {
// log.Fatalf("failed to load config, %v", err)
// }
//
// client := s3.NewFromConfig(config)
//
// result, err := client.GetObject(context.TODO(), s3.GetObject{
// Bucket: aws.String("example-bucket"),
// Key: aws.String("example-key"),
// }, func(o *s3.Options) {
// o.Credentials = nil
// // Or
// o.Credentials = aws.AnonymousCredentials{}
// })
type AnonymousCredentials struct{}
// Retrieve implements the CredentialsProvider interface, but will always
// return error, and cannot be used to sign a request. The AnonymousCredentials
// type is used as a sentinel type instructing the AWS request signing
// middleware to not sign a request.
func (AnonymousCredentials) Retrieve(context.Context) (Credentials, error) {
return Credentials{Source: "AnonymousCredentials"},
fmt.Errorf("the AnonymousCredentials is not a valid credential provider, and cannot be used to sign AWS requests with")
}
// A Credentials is the AWS credentials value for individual credential fields.
type Credentials struct {
// AWS Access key ID
AccessKeyID string
// AWS Secret Access Key
SecretAccessKey string
// AWS Session Token
SessionToken string
// Source of the credentials
Source string
// Time the credentials will expire.
CanExpire bool
Expires time.Time
}
// Expired returns if the credentials have expired.
func (v Credentials) Expired() bool {
if v.CanExpire {
// Calling Round(0) on the current time will truncate the monotonic reading only. Ensures credential expiry
// time is always based on reported wall-clock time.
return !v.Expires.After(sdk.NowTime().Round(0))
}
return false
}
// HasKeys returns if the credentials keys are set.
func (v Credentials) HasKeys() bool {
return len(v.AccessKeyID) > 0 && len(v.SecretAccessKey) > 0
}
// A CredentialsProvider is the interface for any component which will provide
// credentials Credentials. A CredentialsProvider is required to manage its own
// Expired state, and what to be expired means.
//
// A credentials provider implementation can be wrapped with a CredentialCache
// to cache the credential value retrieved. Without the cache the SDK will
// attempt to retrieve the credentials for every request.
type CredentialsProvider interface {
// Retrieve returns nil if it successfully retrieved the value.
// Error is returned if the value were not obtainable, or empty.
Retrieve(ctx context.Context) (Credentials, error)
}
// CredentialsProviderFunc provides a helper wrapping a function value to
// satisfy the CredentialsProvider interface.
type CredentialsProviderFunc func(context.Context) (Credentials, error)
// Retrieve delegates to the function value the CredentialsProviderFunc wraps.
func (fn CredentialsProviderFunc) Retrieve(ctx context.Context) (Credentials, error) {
return fn(ctx)
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/defaults/auto.go generated vendored Normal file
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package defaults
import (
"github.com/aws/aws-sdk-go-v2/aws"
"runtime"
"strings"
)
var getGOOS = func() string {
return runtime.GOOS
}
// ResolveDefaultsModeAuto is used to determine the effective aws.DefaultsMode when the mode
// is set to aws.DefaultsModeAuto.
func ResolveDefaultsModeAuto(region string, environment aws.RuntimeEnvironment) aws.DefaultsMode {
goos := getGOOS()
if goos == "android" || goos == "ios" {
return aws.DefaultsModeMobile
}
var currentRegion string
if len(environment.EnvironmentIdentifier) > 0 {
currentRegion = environment.Region
}
if len(currentRegion) == 0 && len(environment.EC2InstanceMetadataRegion) > 0 {
currentRegion = environment.EC2InstanceMetadataRegion
}
if len(region) > 0 && len(currentRegion) > 0 {
if strings.EqualFold(region, currentRegion) {
return aws.DefaultsModeInRegion
}
return aws.DefaultsModeCrossRegion
}
return aws.DefaultsModeStandard
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/defaults/configuration.go generated vendored Normal file
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package defaults
import (
"time"
"github.com/aws/aws-sdk-go-v2/aws"
)
// Configuration is the set of SDK configuration options that are determined based
// on the configured DefaultsMode.
type Configuration struct {
// RetryMode is the configuration's default retry mode API clients should
// use for constructing a Retryer.
RetryMode aws.RetryMode
// ConnectTimeout is the maximum amount of time a dial will wait for
// a connect to complete.
//
// See https://pkg.go.dev/net#Dialer.Timeout
ConnectTimeout *time.Duration
// TLSNegotiationTimeout specifies the maximum amount of time waiting to
// wait for a TLS handshake.
//
// See https://pkg.go.dev/net/http#Transport.TLSHandshakeTimeout
TLSNegotiationTimeout *time.Duration
}
// GetConnectTimeout returns the ConnectTimeout value, returns false if the value is not set.
func (c *Configuration) GetConnectTimeout() (time.Duration, bool) {
if c.ConnectTimeout == nil {
return 0, false
}
return *c.ConnectTimeout, true
}
// GetTLSNegotiationTimeout returns the TLSNegotiationTimeout value, returns false if the value is not set.
func (c *Configuration) GetTLSNegotiationTimeout() (time.Duration, bool) {
if c.TLSNegotiationTimeout == nil {
return 0, false
}
return *c.TLSNegotiationTimeout, true
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/defaults/defaults.go generated vendored Normal file
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// Code generated by github.com/aws/aws-sdk-go-v2/internal/codegen/cmd/defaultsconfig. DO NOT EDIT.
package defaults
import (
"fmt"
"github.com/aws/aws-sdk-go-v2/aws"
"time"
)
// GetModeConfiguration returns the default Configuration descriptor for the given mode.
//
// Supports the following modes: cross-region, in-region, mobile, standard
func GetModeConfiguration(mode aws.DefaultsMode) (Configuration, error) {
var mv aws.DefaultsMode
mv.SetFromString(string(mode))
switch mv {
case aws.DefaultsModeCrossRegion:
settings := Configuration{
ConnectTimeout: aws.Duration(3100 * time.Millisecond),
RetryMode: aws.RetryMode("standard"),
TLSNegotiationTimeout: aws.Duration(3100 * time.Millisecond),
}
return settings, nil
case aws.DefaultsModeInRegion:
settings := Configuration{
ConnectTimeout: aws.Duration(1100 * time.Millisecond),
RetryMode: aws.RetryMode("standard"),
TLSNegotiationTimeout: aws.Duration(1100 * time.Millisecond),
}
return settings, nil
case aws.DefaultsModeMobile:
settings := Configuration{
ConnectTimeout: aws.Duration(30000 * time.Millisecond),
RetryMode: aws.RetryMode("standard"),
TLSNegotiationTimeout: aws.Duration(30000 * time.Millisecond),
}
return settings, nil
case aws.DefaultsModeStandard:
settings := Configuration{
ConnectTimeout: aws.Duration(3100 * time.Millisecond),
RetryMode: aws.RetryMode("standard"),
TLSNegotiationTimeout: aws.Duration(3100 * time.Millisecond),
}
return settings, nil
default:
return Configuration{}, fmt.Errorf("unsupported defaults mode: %v", mode)
}
}

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// Package defaults provides recommended configuration values for AWS SDKs and CLIs.
package defaults

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vendor/github.com/aws/aws-sdk-go-v2/aws/defaultsmode.go generated vendored Normal file
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// Code generated by github.com/aws/aws-sdk-go-v2/internal/codegen/cmd/defaultsmode. DO NOT EDIT.
package aws
import (
"strings"
)
// DefaultsMode is the SDK defaults mode setting.
type DefaultsMode string
// The DefaultsMode constants.
const (
// DefaultsModeAuto is an experimental mode that builds on the standard mode.
// The SDK will attempt to discover the execution environment to determine the
// appropriate settings automatically.
//
// Note that the auto detection is heuristics-based and does not guarantee 100%
// accuracy. STANDARD mode will be used if the execution environment cannot
// be determined. The auto detection might query EC2 Instance Metadata service
// (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html),
// which might introduce latency. Therefore we recommend choosing an explicit
// defaults_mode instead if startup latency is critical to your application
DefaultsModeAuto DefaultsMode = "auto"
// DefaultsModeCrossRegion builds on the standard mode and includes optimization
// tailored for applications which call AWS services in a different region
//
// Note that the default values vended from this mode might change as best practices
// may evolve. As a result, it is encouraged to perform tests when upgrading
// the SDK
DefaultsModeCrossRegion DefaultsMode = "cross-region"
// DefaultsModeInRegion builds on the standard mode and includes optimization
// tailored for applications which call AWS services from within the same AWS
// region
//
// Note that the default values vended from this mode might change as best practices
// may evolve. As a result, it is encouraged to perform tests when upgrading
// the SDK
DefaultsModeInRegion DefaultsMode = "in-region"
// DefaultsModeLegacy provides default settings that vary per SDK and were used
// prior to establishment of defaults_mode
DefaultsModeLegacy DefaultsMode = "legacy"
// DefaultsModeMobile builds on the standard mode and includes optimization
// tailored for mobile applications
//
// Note that the default values vended from this mode might change as best practices
// may evolve. As a result, it is encouraged to perform tests when upgrading
// the SDK
DefaultsModeMobile DefaultsMode = "mobile"
// DefaultsModeStandard provides the latest recommended default values that
// should be safe to run in most scenarios
//
// Note that the default values vended from this mode might change as best practices
// may evolve. As a result, it is encouraged to perform tests when upgrading
// the SDK
DefaultsModeStandard DefaultsMode = "standard"
)
// SetFromString sets the DefaultsMode value to one of the pre-defined constants that matches
// the provided string when compared using EqualFold. If the value does not match a known
// constant it will be set to as-is and the function will return false. As a special case, if the
// provided value is a zero-length string, the mode will be set to LegacyDefaultsMode.
func (d *DefaultsMode) SetFromString(v string) (ok bool) {
switch {
case strings.EqualFold(v, string(DefaultsModeAuto)):
*d = DefaultsModeAuto
ok = true
case strings.EqualFold(v, string(DefaultsModeCrossRegion)):
*d = DefaultsModeCrossRegion
ok = true
case strings.EqualFold(v, string(DefaultsModeInRegion)):
*d = DefaultsModeInRegion
ok = true
case strings.EqualFold(v, string(DefaultsModeLegacy)):
*d = DefaultsModeLegacy
ok = true
case strings.EqualFold(v, string(DefaultsModeMobile)):
*d = DefaultsModeMobile
ok = true
case strings.EqualFold(v, string(DefaultsModeStandard)):
*d = DefaultsModeStandard
ok = true
case len(v) == 0:
*d = DefaultsModeLegacy
ok = true
default:
*d = DefaultsMode(v)
}
return ok
}

62
vendor/github.com/aws/aws-sdk-go-v2/aws/doc.go generated vendored Normal file
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// Package aws provides the core SDK's utilities and shared types. Use this package's
// utilities to simplify setting and reading API operations parameters.
//
// Value and Pointer Conversion Utilities
//
// This package includes a helper conversion utility for each scalar type the SDK's
// API use. These utilities make getting a pointer of the scalar, and dereferencing
// a pointer easier.
//
// Each conversion utility comes in two forms. Value to Pointer and Pointer to Value.
// The Pointer to value will safely dereference the pointer and return its value.
// If the pointer was nil, the scalar's zero value will be returned.
//
// The value to pointer functions will be named after the scalar type. So get a
// *string from a string value use the "String" function. This makes it easy to
// to get pointer of a literal string value, because getting the address of a
// literal requires assigning the value to a variable first.
//
// var strPtr *string
//
// // Without the SDK's conversion functions
// str := "my string"
// strPtr = &str
//
// // With the SDK's conversion functions
// strPtr = aws.String("my string")
//
// // Convert *string to string value
// str = aws.ToString(strPtr)
//
// In addition to scalars the aws package also includes conversion utilities for
// map and slice for commonly types used in API parameters. The map and slice
// conversion functions use similar naming pattern as the scalar conversion
// functions.
//
// var strPtrs []*string
// var strs []string = []string{"Go", "Gophers", "Go"}
//
// // Convert []string to []*string
// strPtrs = aws.StringSlice(strs)
//
// // Convert []*string to []string
// strs = aws.ToStringSlice(strPtrs)
//
// SDK Default HTTP Client
//
// The SDK will use the http.DefaultClient if a HTTP client is not provided to
// the SDK's Session, or service client constructor. This means that if the
// http.DefaultClient is modified by other components of your application the
// modifications will be picked up by the SDK as well.
//
// In some cases this might be intended, but it is a better practice to create
// a custom HTTP Client to share explicitly through your application. You can
// configure the SDK to use the custom HTTP Client by setting the HTTPClient
// value of the SDK's Config type when creating a Session or service client.
package aws
// generate.go uses a build tag of "ignore", go run doesn't need to specify
// this because go run ignores all build flags when running a go file directly.
//go:generate go run -tags codegen generate.go
//go:generate go run -tags codegen logging_generate.go
//go:generate gofmt -w -s .

229
vendor/github.com/aws/aws-sdk-go-v2/aws/endpoints.go generated vendored Normal file
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package aws
import (
"fmt"
)
// DualStackEndpointState is a constant to describe the dual-stack endpoint resolution behavior.
type DualStackEndpointState uint
const (
// DualStackEndpointStateUnset is the default value behavior for dual-stack endpoint resolution.
DualStackEndpointStateUnset DualStackEndpointState = iota
// DualStackEndpointStateEnabled enables dual-stack endpoint resolution for service endpoints.
DualStackEndpointStateEnabled
// DualStackEndpointStateDisabled disables dual-stack endpoint resolution for endpoints.
DualStackEndpointStateDisabled
)
// GetUseDualStackEndpoint takes a service's EndpointResolverOptions and returns the UseDualStackEndpoint value.
// Returns boolean false if the provided options does not have a method to retrieve the DualStackEndpointState.
func GetUseDualStackEndpoint(options ...interface{}) (value DualStackEndpointState, found bool) {
type iface interface {
GetUseDualStackEndpoint() DualStackEndpointState
}
for _, option := range options {
if i, ok := option.(iface); ok {
value = i.GetUseDualStackEndpoint()
found = true
break
}
}
return value, found
}
// FIPSEndpointState is a constant to describe the FIPS endpoint resolution behavior.
type FIPSEndpointState uint
const (
// FIPSEndpointStateUnset is the default value behavior for FIPS endpoint resolution.
FIPSEndpointStateUnset FIPSEndpointState = iota
// FIPSEndpointStateEnabled enables FIPS endpoint resolution for service endpoints.
FIPSEndpointStateEnabled
// FIPSEndpointStateDisabled disables FIPS endpoint resolution for endpoints.
FIPSEndpointStateDisabled
)
// GetUseFIPSEndpoint takes a service's EndpointResolverOptions and returns the UseDualStackEndpoint value.
// Returns boolean false if the provided options does not have a method to retrieve the DualStackEndpointState.
func GetUseFIPSEndpoint(options ...interface{}) (value FIPSEndpointState, found bool) {
type iface interface {
GetUseFIPSEndpoint() FIPSEndpointState
}
for _, option := range options {
if i, ok := option.(iface); ok {
value = i.GetUseFIPSEndpoint()
found = true
break
}
}
return value, found
}
// Endpoint represents the endpoint a service client should make API operation
// calls to.
//
// The SDK will automatically resolve these endpoints per API client using an
// internal endpoint resolvers. If you'd like to provide custom endpoint
// resolving behavior you can implement the EndpointResolver interface.
type Endpoint struct {
// The base URL endpoint the SDK API clients will use to make API calls to.
// The SDK will suffix URI path and query elements to this endpoint.
URL string
// Specifies if the endpoint's hostname can be modified by the SDK's API
// client.
//
// If the hostname is mutable the SDK API clients may modify any part of
// the hostname based on the requirements of the API, (e.g. adding, or
// removing content in the hostname). Such as, Amazon S3 API client
// prefixing "bucketname" to the hostname, or changing the
// hostname service name component from "s3." to "s3-accesspoint.dualstack."
// for the dualstack endpoint of an S3 Accesspoint resource.
//
// Care should be taken when providing a custom endpoint for an API. If the
// endpoint hostname is mutable, and the client cannot modify the endpoint
// correctly, the operation call will most likely fail, or have undefined
// behavior.
//
// If hostname is immutable, the SDK API clients will not modify the
// hostname of the URL. This may cause the API client not to function
// correctly if the API requires the operation specific hostname values
// to be used by the client.
//
// This flag does not modify the API client's behavior if this endpoint
// will be used instead of Endpoint Discovery, or if the endpoint will be
// used to perform Endpoint Discovery. That behavior is configured via the
// API Client's Options.
HostnameImmutable bool
// The AWS partition the endpoint belongs to.
PartitionID string
// The service name that should be used for signing the requests to the
// endpoint.
SigningName string
// The region that should be used for signing the request to the endpoint.
SigningRegion string
// The signing method that should be used for signing the requests to the
// endpoint.
SigningMethod string
// The source of the Endpoint. By default, this will be EndpointSourceServiceMetadata.
// When providing a custom endpoint, you should set the source as EndpointSourceCustom.
// If source is not provided when providing a custom endpoint, the SDK may not
// perform required host mutations correctly. Source should be used along with
// HostnameImmutable property as per the usage requirement.
Source EndpointSource
}
// EndpointSource is the endpoint source type.
type EndpointSource int
const (
// EndpointSourceServiceMetadata denotes service modeled endpoint metadata is used as Endpoint Source.
EndpointSourceServiceMetadata EndpointSource = iota
// EndpointSourceCustom denotes endpoint is a custom endpoint. This source should be used when
// user provides a custom endpoint to be used by the SDK.
EndpointSourceCustom
)
// EndpointNotFoundError is a sentinel error to indicate that the
// EndpointResolver implementation was unable to resolve an endpoint for the
// given service and region. Resolvers should use this to indicate that an API
// client should fallback and attempt to use it's internal default resolver to
// resolve the endpoint.
type EndpointNotFoundError struct {
Err error
}
// Error is the error message.
func (e *EndpointNotFoundError) Error() string {
return fmt.Sprintf("endpoint not found, %v", e.Err)
}
// Unwrap returns the underlying error.
func (e *EndpointNotFoundError) Unwrap() error {
return e.Err
}
// EndpointResolver is an endpoint resolver that can be used to provide or
// override an endpoint for the given service and region. API clients will
// attempt to use the EndpointResolver first to resolve an endpoint if
// available. If the EndpointResolver returns an EndpointNotFoundError error,
// API clients will fallback to attempting to resolve the endpoint using its
// internal default endpoint resolver.
//
// Deprecated: See EndpointResolverWithOptions
type EndpointResolver interface {
ResolveEndpoint(service, region string) (Endpoint, error)
}
// EndpointResolverFunc wraps a function to satisfy the EndpointResolver interface.
//
// Deprecated: See EndpointResolverWithOptionsFunc
type EndpointResolverFunc func(service, region string) (Endpoint, error)
// ResolveEndpoint calls the wrapped function and returns the results.
//
// Deprecated: See EndpointResolverWithOptions.ResolveEndpoint
func (e EndpointResolverFunc) ResolveEndpoint(service, region string) (Endpoint, error) {
return e(service, region)
}
// EndpointResolverWithOptions is an endpoint resolver that can be used to provide or
// override an endpoint for the given service, region, and the service client's EndpointOptions. API clients will
// attempt to use the EndpointResolverWithOptions first to resolve an endpoint if
// available. If the EndpointResolverWithOptions returns an EndpointNotFoundError error,
// API clients will fallback to attempting to resolve the endpoint using its
// internal default endpoint resolver.
type EndpointResolverWithOptions interface {
ResolveEndpoint(service, region string, options ...interface{}) (Endpoint, error)
}
// EndpointResolverWithOptionsFunc wraps a function to satisfy the EndpointResolverWithOptions interface.
type EndpointResolverWithOptionsFunc func(service, region string, options ...interface{}) (Endpoint, error)
// ResolveEndpoint calls the wrapped function and returns the results.
func (e EndpointResolverWithOptionsFunc) ResolveEndpoint(service, region string, options ...interface{}) (Endpoint, error) {
return e(service, region, options...)
}
// GetDisableHTTPS takes a service's EndpointResolverOptions and returns the DisableHTTPS value.
// Returns boolean false if the provided options does not have a method to retrieve the DisableHTTPS.
func GetDisableHTTPS(options ...interface{}) (value bool, found bool) {
type iface interface {
GetDisableHTTPS() bool
}
for _, option := range options {
if i, ok := option.(iface); ok {
value = i.GetDisableHTTPS()
found = true
break
}
}
return value, found
}
// GetResolvedRegion takes a service's EndpointResolverOptions and returns the ResolvedRegion value.
// Returns boolean false if the provided options does not have a method to retrieve the ResolvedRegion.
func GetResolvedRegion(options ...interface{}) (value string, found bool) {
type iface interface {
GetResolvedRegion() string
}
for _, option := range options {
if i, ok := option.(iface); ok {
value = i.GetResolvedRegion()
found = true
break
}
}
return value, found
}

9
vendor/github.com/aws/aws-sdk-go-v2/aws/errors.go generated vendored Normal file
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package aws
// MissingRegionError is an error that is returned if region configuration
// value was not found.
type MissingRegionError struct{}
func (*MissingRegionError) Error() string {
return "an AWS region is required, but was not found"
}

365
vendor/github.com/aws/aws-sdk-go-v2/aws/from_ptr.go generated vendored Normal file
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// Code generated by aws/generate.go DO NOT EDIT.
package aws
import (
"github.com/aws/smithy-go/ptr"
"time"
)
// ToBool returns bool value dereferenced if the passed
// in pointer was not nil. Returns a bool zero value if the
// pointer was nil.
func ToBool(p *bool) (v bool) {
return ptr.ToBool(p)
}
// ToBoolSlice returns a slice of bool values, that are
// dereferenced if the passed in pointer was not nil. Returns a bool
// zero value if the pointer was nil.
func ToBoolSlice(vs []*bool) []bool {
return ptr.ToBoolSlice(vs)
}
// ToBoolMap returns a map of bool values, that are
// dereferenced if the passed in pointer was not nil. The bool
// zero value is used if the pointer was nil.
func ToBoolMap(vs map[string]*bool) map[string]bool {
return ptr.ToBoolMap(vs)
}
// ToByte returns byte value dereferenced if the passed
// in pointer was not nil. Returns a byte zero value if the
// pointer was nil.
func ToByte(p *byte) (v byte) {
return ptr.ToByte(p)
}
// ToByteSlice returns a slice of byte values, that are
// dereferenced if the passed in pointer was not nil. Returns a byte
// zero value if the pointer was nil.
func ToByteSlice(vs []*byte) []byte {
return ptr.ToByteSlice(vs)
}
// ToByteMap returns a map of byte values, that are
// dereferenced if the passed in pointer was not nil. The byte
// zero value is used if the pointer was nil.
func ToByteMap(vs map[string]*byte) map[string]byte {
return ptr.ToByteMap(vs)
}
// ToString returns string value dereferenced if the passed
// in pointer was not nil. Returns a string zero value if the
// pointer was nil.
func ToString(p *string) (v string) {
return ptr.ToString(p)
}
// ToStringSlice returns a slice of string values, that are
// dereferenced if the passed in pointer was not nil. Returns a string
// zero value if the pointer was nil.
func ToStringSlice(vs []*string) []string {
return ptr.ToStringSlice(vs)
}
// ToStringMap returns a map of string values, that are
// dereferenced if the passed in pointer was not nil. The string
// zero value is used if the pointer was nil.
func ToStringMap(vs map[string]*string) map[string]string {
return ptr.ToStringMap(vs)
}
// ToInt returns int value dereferenced if the passed
// in pointer was not nil. Returns a int zero value if the
// pointer was nil.
func ToInt(p *int) (v int) {
return ptr.ToInt(p)
}
// ToIntSlice returns a slice of int values, that are
// dereferenced if the passed in pointer was not nil. Returns a int
// zero value if the pointer was nil.
func ToIntSlice(vs []*int) []int {
return ptr.ToIntSlice(vs)
}
// ToIntMap returns a map of int values, that are
// dereferenced if the passed in pointer was not nil. The int
// zero value is used if the pointer was nil.
func ToIntMap(vs map[string]*int) map[string]int {
return ptr.ToIntMap(vs)
}
// ToInt8 returns int8 value dereferenced if the passed
// in pointer was not nil. Returns a int8 zero value if the
// pointer was nil.
func ToInt8(p *int8) (v int8) {
return ptr.ToInt8(p)
}
// ToInt8Slice returns a slice of int8 values, that are
// dereferenced if the passed in pointer was not nil. Returns a int8
// zero value if the pointer was nil.
func ToInt8Slice(vs []*int8) []int8 {
return ptr.ToInt8Slice(vs)
}
// ToInt8Map returns a map of int8 values, that are
// dereferenced if the passed in pointer was not nil. The int8
// zero value is used if the pointer was nil.
func ToInt8Map(vs map[string]*int8) map[string]int8 {
return ptr.ToInt8Map(vs)
}
// ToInt16 returns int16 value dereferenced if the passed
// in pointer was not nil. Returns a int16 zero value if the
// pointer was nil.
func ToInt16(p *int16) (v int16) {
return ptr.ToInt16(p)
}
// ToInt16Slice returns a slice of int16 values, that are
// dereferenced if the passed in pointer was not nil. Returns a int16
// zero value if the pointer was nil.
func ToInt16Slice(vs []*int16) []int16 {
return ptr.ToInt16Slice(vs)
}
// ToInt16Map returns a map of int16 values, that are
// dereferenced if the passed in pointer was not nil. The int16
// zero value is used if the pointer was nil.
func ToInt16Map(vs map[string]*int16) map[string]int16 {
return ptr.ToInt16Map(vs)
}
// ToInt32 returns int32 value dereferenced if the passed
// in pointer was not nil. Returns a int32 zero value if the
// pointer was nil.
func ToInt32(p *int32) (v int32) {
return ptr.ToInt32(p)
}
// ToInt32Slice returns a slice of int32 values, that are
// dereferenced if the passed in pointer was not nil. Returns a int32
// zero value if the pointer was nil.
func ToInt32Slice(vs []*int32) []int32 {
return ptr.ToInt32Slice(vs)
}
// ToInt32Map returns a map of int32 values, that are
// dereferenced if the passed in pointer was not nil. The int32
// zero value is used if the pointer was nil.
func ToInt32Map(vs map[string]*int32) map[string]int32 {
return ptr.ToInt32Map(vs)
}
// ToInt64 returns int64 value dereferenced if the passed
// in pointer was not nil. Returns a int64 zero value if the
// pointer was nil.
func ToInt64(p *int64) (v int64) {
return ptr.ToInt64(p)
}
// ToInt64Slice returns a slice of int64 values, that are
// dereferenced if the passed in pointer was not nil. Returns a int64
// zero value if the pointer was nil.
func ToInt64Slice(vs []*int64) []int64 {
return ptr.ToInt64Slice(vs)
}
// ToInt64Map returns a map of int64 values, that are
// dereferenced if the passed in pointer was not nil. The int64
// zero value is used if the pointer was nil.
func ToInt64Map(vs map[string]*int64) map[string]int64 {
return ptr.ToInt64Map(vs)
}
// ToUint returns uint value dereferenced if the passed
// in pointer was not nil. Returns a uint zero value if the
// pointer was nil.
func ToUint(p *uint) (v uint) {
return ptr.ToUint(p)
}
// ToUintSlice returns a slice of uint values, that are
// dereferenced if the passed in pointer was not nil. Returns a uint
// zero value if the pointer was nil.
func ToUintSlice(vs []*uint) []uint {
return ptr.ToUintSlice(vs)
}
// ToUintMap returns a map of uint values, that are
// dereferenced if the passed in pointer was not nil. The uint
// zero value is used if the pointer was nil.
func ToUintMap(vs map[string]*uint) map[string]uint {
return ptr.ToUintMap(vs)
}
// ToUint8 returns uint8 value dereferenced if the passed
// in pointer was not nil. Returns a uint8 zero value if the
// pointer was nil.
func ToUint8(p *uint8) (v uint8) {
return ptr.ToUint8(p)
}
// ToUint8Slice returns a slice of uint8 values, that are
// dereferenced if the passed in pointer was not nil. Returns a uint8
// zero value if the pointer was nil.
func ToUint8Slice(vs []*uint8) []uint8 {
return ptr.ToUint8Slice(vs)
}
// ToUint8Map returns a map of uint8 values, that are
// dereferenced if the passed in pointer was not nil. The uint8
// zero value is used if the pointer was nil.
func ToUint8Map(vs map[string]*uint8) map[string]uint8 {
return ptr.ToUint8Map(vs)
}
// ToUint16 returns uint16 value dereferenced if the passed
// in pointer was not nil. Returns a uint16 zero value if the
// pointer was nil.
func ToUint16(p *uint16) (v uint16) {
return ptr.ToUint16(p)
}
// ToUint16Slice returns a slice of uint16 values, that are
// dereferenced if the passed in pointer was not nil. Returns a uint16
// zero value if the pointer was nil.
func ToUint16Slice(vs []*uint16) []uint16 {
return ptr.ToUint16Slice(vs)
}
// ToUint16Map returns a map of uint16 values, that are
// dereferenced if the passed in pointer was not nil. The uint16
// zero value is used if the pointer was nil.
func ToUint16Map(vs map[string]*uint16) map[string]uint16 {
return ptr.ToUint16Map(vs)
}
// ToUint32 returns uint32 value dereferenced if the passed
// in pointer was not nil. Returns a uint32 zero value if the
// pointer was nil.
func ToUint32(p *uint32) (v uint32) {
return ptr.ToUint32(p)
}
// ToUint32Slice returns a slice of uint32 values, that are
// dereferenced if the passed in pointer was not nil. Returns a uint32
// zero value if the pointer was nil.
func ToUint32Slice(vs []*uint32) []uint32 {
return ptr.ToUint32Slice(vs)
}
// ToUint32Map returns a map of uint32 values, that are
// dereferenced if the passed in pointer was not nil. The uint32
// zero value is used if the pointer was nil.
func ToUint32Map(vs map[string]*uint32) map[string]uint32 {
return ptr.ToUint32Map(vs)
}
// ToUint64 returns uint64 value dereferenced if the passed
// in pointer was not nil. Returns a uint64 zero value if the
// pointer was nil.
func ToUint64(p *uint64) (v uint64) {
return ptr.ToUint64(p)
}
// ToUint64Slice returns a slice of uint64 values, that are
// dereferenced if the passed in pointer was not nil. Returns a uint64
// zero value if the pointer was nil.
func ToUint64Slice(vs []*uint64) []uint64 {
return ptr.ToUint64Slice(vs)
}
// ToUint64Map returns a map of uint64 values, that are
// dereferenced if the passed in pointer was not nil. The uint64
// zero value is used if the pointer was nil.
func ToUint64Map(vs map[string]*uint64) map[string]uint64 {
return ptr.ToUint64Map(vs)
}
// ToFloat32 returns float32 value dereferenced if the passed
// in pointer was not nil. Returns a float32 zero value if the
// pointer was nil.
func ToFloat32(p *float32) (v float32) {
return ptr.ToFloat32(p)
}
// ToFloat32Slice returns a slice of float32 values, that are
// dereferenced if the passed in pointer was not nil. Returns a float32
// zero value if the pointer was nil.
func ToFloat32Slice(vs []*float32) []float32 {
return ptr.ToFloat32Slice(vs)
}
// ToFloat32Map returns a map of float32 values, that are
// dereferenced if the passed in pointer was not nil. The float32
// zero value is used if the pointer was nil.
func ToFloat32Map(vs map[string]*float32) map[string]float32 {
return ptr.ToFloat32Map(vs)
}
// ToFloat64 returns float64 value dereferenced if the passed
// in pointer was not nil. Returns a float64 zero value if the
// pointer was nil.
func ToFloat64(p *float64) (v float64) {
return ptr.ToFloat64(p)
}
// ToFloat64Slice returns a slice of float64 values, that are
// dereferenced if the passed in pointer was not nil. Returns a float64
// zero value if the pointer was nil.
func ToFloat64Slice(vs []*float64) []float64 {
return ptr.ToFloat64Slice(vs)
}
// ToFloat64Map returns a map of float64 values, that are
// dereferenced if the passed in pointer was not nil. The float64
// zero value is used if the pointer was nil.
func ToFloat64Map(vs map[string]*float64) map[string]float64 {
return ptr.ToFloat64Map(vs)
}
// ToTime returns time.Time value dereferenced if the passed
// in pointer was not nil. Returns a time.Time zero value if the
// pointer was nil.
func ToTime(p *time.Time) (v time.Time) {
return ptr.ToTime(p)
}
// ToTimeSlice returns a slice of time.Time values, that are
// dereferenced if the passed in pointer was not nil. Returns a time.Time
// zero value if the pointer was nil.
func ToTimeSlice(vs []*time.Time) []time.Time {
return ptr.ToTimeSlice(vs)
}
// ToTimeMap returns a map of time.Time values, that are
// dereferenced if the passed in pointer was not nil. The time.Time
// zero value is used if the pointer was nil.
func ToTimeMap(vs map[string]*time.Time) map[string]time.Time {
return ptr.ToTimeMap(vs)
}
// ToDuration returns time.Duration value dereferenced if the passed
// in pointer was not nil. Returns a time.Duration zero value if the
// pointer was nil.
func ToDuration(p *time.Duration) (v time.Duration) {
return ptr.ToDuration(p)
}
// ToDurationSlice returns a slice of time.Duration values, that are
// dereferenced if the passed in pointer was not nil. Returns a time.Duration
// zero value if the pointer was nil.
func ToDurationSlice(vs []*time.Duration) []time.Duration {
return ptr.ToDurationSlice(vs)
}
// ToDurationMap returns a map of time.Duration values, that are
// dereferenced if the passed in pointer was not nil. The time.Duration
// zero value is used if the pointer was nil.
func ToDurationMap(vs map[string]*time.Duration) map[string]time.Duration {
return ptr.ToDurationMap(vs)
}

6
vendor/github.com/aws/aws-sdk-go-v2/aws/go_module_metadata.go generated vendored Normal file
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// Code generated by internal/repotools/cmd/updatemodulemeta DO NOT EDIT.
package aws
// goModuleVersion is the tagged release for this module
const goModuleVersion = "1.14.0"

117
vendor/github.com/aws/aws-sdk-go-v2/aws/logging.go generated vendored Normal file
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// Code generated by aws/logging_generate.go DO NOT EDIT.
package aws
// ClientLogMode represents the logging mode of SDK clients. The client logging mode is a bit-field where
// each bit is a flag that describes the logging behavior for one or more client components.
// The entire 64-bit group is reserved for later expansion by the SDK.
//
// Example: Setting ClientLogMode to enable logging of retries and requests
// clientLogMode := aws.LogRetries | aws.LogRequest
//
// Example: Adding an additional log mode to an existing ClientLogMode value
// clientLogMode |= aws.LogResponse
type ClientLogMode uint64
// Supported ClientLogMode bits that can be configured to toggle logging of specific SDK events.
const (
LogSigning ClientLogMode = 1 << (64 - 1 - iota)
LogRetries
LogRequest
LogRequestWithBody
LogResponse
LogResponseWithBody
LogDeprecatedUsage
LogRequestEventMessage
LogResponseEventMessage
)
// IsSigning returns whether the Signing logging mode bit is set
func (m ClientLogMode) IsSigning() bool {
return m&LogSigning != 0
}
// IsRetries returns whether the Retries logging mode bit is set
func (m ClientLogMode) IsRetries() bool {
return m&LogRetries != 0
}
// IsRequest returns whether the Request logging mode bit is set
func (m ClientLogMode) IsRequest() bool {
return m&LogRequest != 0
}
// IsRequestWithBody returns whether the RequestWithBody logging mode bit is set
func (m ClientLogMode) IsRequestWithBody() bool {
return m&LogRequestWithBody != 0
}
// IsResponse returns whether the Response logging mode bit is set
func (m ClientLogMode) IsResponse() bool {
return m&LogResponse != 0
}
// IsResponseWithBody returns whether the ResponseWithBody logging mode bit is set
func (m ClientLogMode) IsResponseWithBody() bool {
return m&LogResponseWithBody != 0
}
// IsDeprecatedUsage returns whether the DeprecatedUsage logging mode bit is set
func (m ClientLogMode) IsDeprecatedUsage() bool {
return m&LogDeprecatedUsage != 0
}
// IsRequestEventMessage returns whether the RequestEventMessage logging mode bit is set
func (m ClientLogMode) IsRequestEventMessage() bool {
return m&LogRequestEventMessage != 0
}
// IsResponseEventMessage returns whether the ResponseEventMessage logging mode bit is set
func (m ClientLogMode) IsResponseEventMessage() bool {
return m&LogResponseEventMessage != 0
}
// ClearSigning clears the Signing logging mode bit
func (m *ClientLogMode) ClearSigning() {
*m &^= LogSigning
}
// ClearRetries clears the Retries logging mode bit
func (m *ClientLogMode) ClearRetries() {
*m &^= LogRetries
}
// ClearRequest clears the Request logging mode bit
func (m *ClientLogMode) ClearRequest() {
*m &^= LogRequest
}
// ClearRequestWithBody clears the RequestWithBody logging mode bit
func (m *ClientLogMode) ClearRequestWithBody() {
*m &^= LogRequestWithBody
}
// ClearResponse clears the Response logging mode bit
func (m *ClientLogMode) ClearResponse() {
*m &^= LogResponse
}
// ClearResponseWithBody clears the ResponseWithBody logging mode bit
func (m *ClientLogMode) ClearResponseWithBody() {
*m &^= LogResponseWithBody
}
// ClearDeprecatedUsage clears the DeprecatedUsage logging mode bit
func (m *ClientLogMode) ClearDeprecatedUsage() {
*m &^= LogDeprecatedUsage
}
// ClearRequestEventMessage clears the RequestEventMessage logging mode bit
func (m *ClientLogMode) ClearRequestEventMessage() {
*m &^= LogRequestEventMessage
}
// ClearResponseEventMessage clears the ResponseEventMessage logging mode bit
func (m *ClientLogMode) ClearResponseEventMessage() {
*m &^= LogResponseEventMessage
}

95
vendor/github.com/aws/aws-sdk-go-v2/aws/logging_generate.go generated vendored Normal file
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//go:build clientlogmode
// +build clientlogmode
package main
import (
"fmt"
"log"
"os"
"strings"
"text/template"
)
var config = struct {
ModeBits []string
}{
// Items should be appended only to keep bit-flag positions stable
ModeBits: []string{
"Signing",
"Retries",
"Request",
"RequestWithBody",
"Response",
"ResponseWithBody",
"DeprecatedUsage",
"RequestEventMessage",
"ResponseEventMessage",
},
}
func bitName(name string) string {
return strings.ToUpper(name[:1]) + name[1:]
}
var tmpl = template.Must(template.New("ClientLogMode").Funcs(map[string]interface{}{
"symbolName": func(name string) string {
return "Log" + bitName(name)
},
"bitName": bitName,
}).Parse(`// Code generated by aws/logging_generate.go DO NOT EDIT.
package aws
// ClientLogMode represents the logging mode of SDK clients. The client logging mode is a bit-field where
// each bit is a flag that describes the logging behavior for one or more client components.
// The entire 64-bit group is reserved for later expansion by the SDK.
//
// Example: Setting ClientLogMode to enable logging of retries and requests
// clientLogMode := aws.LogRetries | aws.LogRequest
//
// Example: Adding an additional log mode to an existing ClientLogMode value
// clientLogMode |= aws.LogResponse
type ClientLogMode uint64
// Supported ClientLogMode bits that can be configured to toggle logging of specific SDK events.
const (
{{- range $index, $field := .ModeBits }}
{{ (symbolName $field) }}{{- if (eq 0 $index) }} ClientLogMode = 1 << (64 - 1 - iota){{- end }}
{{- end }}
)
{{ range $_, $field := .ModeBits }}
// Is{{- bitName $field }} returns whether the {{ bitName $field }} logging mode bit is set
func (m ClientLogMode) Is{{- bitName $field }}() bool {
return m&{{- (symbolName $field) }} != 0
}
{{ end }}
{{- range $_, $field := .ModeBits }}
// Clear{{- bitName $field }} clears the {{ bitName $field }} logging mode bit
func (m *ClientLogMode) Clear{{- bitName $field }}() {
*m &^= {{ (symbolName $field) }}
}
{{ end -}}
`))
func main() {
uniqueBitFields := make(map[string]struct{})
for _, bitName := range config.ModeBits {
if _, ok := uniqueBitFields[strings.ToLower(bitName)]; ok {
panic(fmt.Sprintf("duplicate bit field: %s", bitName))
}
uniqueBitFields[bitName] = struct{}{}
}
file, err := os.Create("logging.go")
if err != nil {
log.Fatal(err)
}
defer file.Close()
err = tmpl.Execute(file, config)
if err != nil {
log.Fatal(err)
}
}

180
vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/metadata.go generated vendored Normal file
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package middleware
import (
"context"
"github.com/aws/aws-sdk-go-v2/aws"
"github.com/aws/smithy-go/middleware"
)
// RegisterServiceMetadata registers metadata about the service and operation into the middleware context
// so that it is available at runtime for other middleware to introspect.
type RegisterServiceMetadata struct {
ServiceID string
SigningName string
Region string
OperationName string
}
// ID returns the middleware identifier.
func (s *RegisterServiceMetadata) ID() string {
return "RegisterServiceMetadata"
}
// HandleInitialize registers service metadata information into the middleware context, allowing for introspection.
func (s RegisterServiceMetadata) HandleInitialize(
ctx context.Context, in middleware.InitializeInput, next middleware.InitializeHandler,
) (out middleware.InitializeOutput, metadata middleware.Metadata, err error) {
if len(s.ServiceID) > 0 {
ctx = SetServiceID(ctx, s.ServiceID)
}
if len(s.SigningName) > 0 {
ctx = SetSigningName(ctx, s.SigningName)
}
if len(s.Region) > 0 {
ctx = setRegion(ctx, s.Region)
}
if len(s.OperationName) > 0 {
ctx = setOperationName(ctx, s.OperationName)
}
return next.HandleInitialize(ctx, in)
}
// service metadata keys for storing and lookup of runtime stack information.
type (
serviceIDKey struct{}
signingNameKey struct{}
signingRegionKey struct{}
regionKey struct{}
operationNameKey struct{}
partitionIDKey struct{}
)
// GetServiceID retrieves the service id from the context.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func GetServiceID(ctx context.Context) (v string) {
v, _ = middleware.GetStackValue(ctx, serviceIDKey{}).(string)
return v
}
// GetSigningName retrieves the service signing name from the context.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func GetSigningName(ctx context.Context) (v string) {
v, _ = middleware.GetStackValue(ctx, signingNameKey{}).(string)
return v
}
// GetSigningRegion retrieves the region from the context.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func GetSigningRegion(ctx context.Context) (v string) {
v, _ = middleware.GetStackValue(ctx, signingRegionKey{}).(string)
return v
}
// GetRegion retrieves the endpoint region from the context.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func GetRegion(ctx context.Context) (v string) {
v, _ = middleware.GetStackValue(ctx, regionKey{}).(string)
return v
}
// GetOperationName retrieves the service operation metadata from the context.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func GetOperationName(ctx context.Context) (v string) {
v, _ = middleware.GetStackValue(ctx, operationNameKey{}).(string)
return v
}
// GetPartitionID retrieves the endpoint partition id from the context.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func GetPartitionID(ctx context.Context) string {
v, _ := middleware.GetStackValue(ctx, partitionIDKey{}).(string)
return v
}
// SetSigningName set or modifies the signing name on the context.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func SetSigningName(ctx context.Context, value string) context.Context {
return middleware.WithStackValue(ctx, signingNameKey{}, value)
}
// SetSigningRegion sets or modifies the region on the context.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func SetSigningRegion(ctx context.Context, value string) context.Context {
return middleware.WithStackValue(ctx, signingRegionKey{}, value)
}
// SetServiceID sets the service id on the context.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func SetServiceID(ctx context.Context, value string) context.Context {
return middleware.WithStackValue(ctx, serviceIDKey{}, value)
}
// setRegion sets the endpoint region on the context.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func setRegion(ctx context.Context, value string) context.Context {
return middleware.WithStackValue(ctx, regionKey{}, value)
}
// setOperationName sets the service operation on the context.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func setOperationName(ctx context.Context, value string) context.Context {
return middleware.WithStackValue(ctx, operationNameKey{}, value)
}
// SetPartitionID sets the partition id of a resolved region on the context
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func SetPartitionID(ctx context.Context, value string) context.Context {
return middleware.WithStackValue(ctx, partitionIDKey{}, value)
}
// EndpointSource key
type endpointSourceKey struct{}
// GetEndpointSource returns an endpoint source if set on context
func GetEndpointSource(ctx context.Context) (v aws.EndpointSource) {
v, _ = middleware.GetStackValue(ctx, endpointSourceKey{}).(aws.EndpointSource)
return v
}
// SetEndpointSource sets endpoint source on context
func SetEndpointSource(ctx context.Context, value aws.EndpointSource) context.Context {
return middleware.WithStackValue(ctx, endpointSourceKey{}, value)
}
type signingCredentialsKey struct{}
// GetSigningCredentials returns the credentials that were used for signing if set on context.
func GetSigningCredentials(ctx context.Context) (v aws.Credentials) {
v, _ = middleware.GetStackValue(ctx, signingCredentialsKey{}).(aws.Credentials)
return v
}
// SetSigningCredentials sets the credentails used for signing on the context.
func SetSigningCredentials(ctx context.Context, value aws.Credentials) context.Context {
return middleware.WithStackValue(ctx, signingCredentialsKey{}, value)
}

168
vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/middleware.go generated vendored Normal file
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package middleware
import (
"context"
"fmt"
"time"
"github.com/aws/aws-sdk-go-v2/internal/rand"
"github.com/aws/aws-sdk-go-v2/internal/sdk"
"github.com/aws/smithy-go/logging"
"github.com/aws/smithy-go/middleware"
smithyrand "github.com/aws/smithy-go/rand"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// ClientRequestID is a Smithy BuildMiddleware that will generate a unique ID for logical API operation
// invocation.
type ClientRequestID struct{}
// ID the identifier for the ClientRequestID
func (r *ClientRequestID) ID() string {
return "ClientRequestID"
}
// HandleBuild attaches a unique operation invocation id for the operation to the request
func (r ClientRequestID) HandleBuild(ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler) (
out middleware.BuildOutput, metadata middleware.Metadata, err error,
) {
req, ok := in.Request.(*smithyhttp.Request)
if !ok {
return out, metadata, fmt.Errorf("unknown transport type %T", req)
}
invocationID, err := smithyrand.NewUUID(rand.Reader).GetUUID()
if err != nil {
return out, metadata, err
}
const invocationIDHeader = "Amz-Sdk-Invocation-Id"
req.Header[invocationIDHeader] = append(req.Header[invocationIDHeader][:0], invocationID)
return next.HandleBuild(ctx, in)
}
// RecordResponseTiming records the response timing for the SDK client requests.
type RecordResponseTiming struct{}
// ID is the middleware identifier
func (a *RecordResponseTiming) ID() string {
return "RecordResponseTiming"
}
// HandleDeserialize calculates response metadata and clock skew
func (a RecordResponseTiming) HandleDeserialize(ctx context.Context, in middleware.DeserializeInput, next middleware.DeserializeHandler) (
out middleware.DeserializeOutput, metadata middleware.Metadata, err error,
) {
out, metadata, err = next.HandleDeserialize(ctx, in)
responseAt := sdk.NowTime()
setResponseAt(&metadata, responseAt)
var serverTime time.Time
switch resp := out.RawResponse.(type) {
case *smithyhttp.Response:
respDateHeader := resp.Header.Get("Date")
if len(respDateHeader) == 0 {
break
}
var parseErr error
serverTime, parseErr = smithyhttp.ParseTime(respDateHeader)
if parseErr != nil {
logger := middleware.GetLogger(ctx)
logger.Logf(logging.Warn, "failed to parse response Date header value, got %v",
parseErr.Error())
break
}
setServerTime(&metadata, serverTime)
}
if !serverTime.IsZero() {
attemptSkew := serverTime.Sub(responseAt)
setAttemptSkew(&metadata, attemptSkew)
}
return out, metadata, err
}
type responseAtKey struct{}
// GetResponseAt returns the time response was received at.
func GetResponseAt(metadata middleware.Metadata) (v time.Time, ok bool) {
v, ok = metadata.Get(responseAtKey{}).(time.Time)
return v, ok
}
// setResponseAt sets the response time on the metadata.
func setResponseAt(metadata *middleware.Metadata, v time.Time) {
metadata.Set(responseAtKey{}, v)
}
type serverTimeKey struct{}
// GetServerTime returns the server time for response.
func GetServerTime(metadata middleware.Metadata) (v time.Time, ok bool) {
v, ok = metadata.Get(serverTimeKey{}).(time.Time)
return v, ok
}
// setServerTime sets the server time on the metadata.
func setServerTime(metadata *middleware.Metadata, v time.Time) {
metadata.Set(serverTimeKey{}, v)
}
type attemptSkewKey struct{}
// GetAttemptSkew returns Attempt clock skew for response from metadata.
func GetAttemptSkew(metadata middleware.Metadata) (v time.Duration, ok bool) {
v, ok = metadata.Get(attemptSkewKey{}).(time.Duration)
return v, ok
}
// setAttemptSkew sets the attempt clock skew on the metadata.
func setAttemptSkew(metadata *middleware.Metadata, v time.Duration) {
metadata.Set(attemptSkewKey{}, v)
}
// AddClientRequestIDMiddleware adds ClientRequestID to the middleware stack
func AddClientRequestIDMiddleware(stack *middleware.Stack) error {
return stack.Build.Add(&ClientRequestID{}, middleware.After)
}
// AddRecordResponseTiming adds RecordResponseTiming middleware to the
// middleware stack.
func AddRecordResponseTiming(stack *middleware.Stack) error {
return stack.Deserialize.Add(&RecordResponseTiming{}, middleware.After)
}
// rawResponseKey is the accessor key used to store and access the
// raw response within the response metadata.
type rawResponseKey struct{}
// addRawResponse middleware adds raw response on to the metadata
type addRawResponse struct{}
// ID the identifier for the ClientRequestID
func (m *addRawResponse) ID() string {
return "AddRawResponseToMetadata"
}
// HandleDeserialize adds raw response on the middleware metadata
func (m addRawResponse) HandleDeserialize(ctx context.Context, in middleware.DeserializeInput, next middleware.DeserializeHandler) (
out middleware.DeserializeOutput, metadata middleware.Metadata, err error,
) {
out, metadata, err = next.HandleDeserialize(ctx, in)
metadata.Set(rawResponseKey{}, out.RawResponse)
return out, metadata, err
}
// AddRawResponseToMetadata adds middleware to the middleware stack that
// store raw response on to the metadata.
func AddRawResponseToMetadata(stack *middleware.Stack) error {
return stack.Deserialize.Add(&addRawResponse{}, middleware.Before)
}
// GetRawResponse returns raw response set on metadata
func GetRawResponse(metadata middleware.Metadata) interface{} {
return metadata.Get(rawResponseKey{})
}

24
vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/osname.go generated vendored Normal file
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//go:build go1.16
// +build go1.16
package middleware
import "runtime"
func getNormalizedOSName() (os string) {
switch runtime.GOOS {
case "android":
os = "android"
case "linux":
os = "linux"
case "windows":
os = "windows"
case "darwin":
os = "macos"
case "ios":
os = "ios"
default:
os = "other"
}
return os
}

24
vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/osname_go115.go generated vendored Normal file
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//go:build !go1.16
// +build !go1.16
package middleware
import "runtime"
func getNormalizedOSName() (os string) {
switch runtime.GOOS {
case "android":
os = "android"
case "linux":
os = "linux"
case "windows":
os = "windows"
case "darwin":
// Due to Apple M1 we can't distinguish between macOS and iOS when GOOS/GOARCH is darwin/amd64
// For now declare this as "other" until we have a better detection mechanism.
fallthrough
default:
os = "other"
}
return os
}

27
vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/request_id.go generated vendored Normal file
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package middleware
import (
"github.com/aws/smithy-go/middleware"
)
// requestIDKey is used to retrieve request id from response metadata
type requestIDKey struct{}
// SetRequestIDMetadata sets the provided request id over middleware metadata
func SetRequestIDMetadata(metadata *middleware.Metadata, id string) {
metadata.Set(requestIDKey{}, id)
}
// GetRequestIDMetadata retrieves the request id from middleware metadata
// returns string and bool indicating value of request id, whether request id was set.
func GetRequestIDMetadata(metadata middleware.Metadata) (string, bool) {
if !metadata.Has(requestIDKey{}) {
return "", false
}
v, ok := metadata.Get(requestIDKey{}).(string)
if !ok {
return "", true
}
return v, true
}

49
vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/request_id_retriever.go generated vendored Normal file
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package middleware
import (
"context"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// AddRequestIDRetrieverMiddleware adds request id retriever middleware
func AddRequestIDRetrieverMiddleware(stack *middleware.Stack) error {
// add error wrapper middleware before operation deserializers so that it can wrap the error response
// returned by operation deserializers
return stack.Deserialize.Insert(&requestIDRetriever{}, "OperationDeserializer", middleware.Before)
}
type requestIDRetriever struct {
}
// ID returns the middleware identifier
func (m *requestIDRetriever) ID() string {
return "RequestIDRetriever"
}
func (m *requestIDRetriever) HandleDeserialize(ctx context.Context, in middleware.DeserializeInput, next middleware.DeserializeHandler) (
out middleware.DeserializeOutput, metadata middleware.Metadata, err error,
) {
out, metadata, err = next.HandleDeserialize(ctx, in)
resp, ok := out.RawResponse.(*smithyhttp.Response)
if !ok {
// No raw response to wrap with.
return out, metadata, err
}
// Different header which can map to request id
requestIDHeaderList := []string{"X-Amzn-Requestid", "X-Amz-RequestId"}
for _, h := range requestIDHeaderList {
// check for headers known to contain Request id
if v := resp.Header.Get(h); len(v) != 0 {
// set reqID on metadata for successful responses.
SetRequestIDMetadata(&metadata, v)
break
}
}
return out, metadata, err
}

241
vendor/github.com/aws/aws-sdk-go-v2/aws/middleware/user_agent.go generated vendored Normal file
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package middleware
import (
"context"
"fmt"
"os"
"runtime"
"strings"
"github.com/aws/aws-sdk-go-v2/aws"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
var languageVersion = strings.TrimPrefix(runtime.Version(), "go")
// SDKAgentKeyType is the metadata type to add to the SDK agent string
type SDKAgentKeyType int
// The set of valid SDKAgentKeyType constants. If an unknown value is assigned for SDKAgentKeyType it will
// be mapped to AdditionalMetadata.
const (
_ SDKAgentKeyType = iota
APIMetadata
OperatingSystemMetadata
LanguageMetadata
EnvironmentMetadata
FeatureMetadata
ConfigMetadata
FrameworkMetadata
AdditionalMetadata
ApplicationIdentifier
)
func (k SDKAgentKeyType) string() string {
switch k {
case APIMetadata:
return "api"
case OperatingSystemMetadata:
return "os"
case LanguageMetadata:
return "lang"
case EnvironmentMetadata:
return "exec-env"
case FeatureMetadata:
return "ft"
case ConfigMetadata:
return "cfg"
case FrameworkMetadata:
return "lib"
case ApplicationIdentifier:
return "app"
case AdditionalMetadata:
fallthrough
default:
return "md"
}
}
const execEnvVar = `AWS_EXECUTION_ENV`
// requestUserAgent is a build middleware that set the User-Agent for the request.
type requestUserAgent struct {
sdkAgent, userAgent *smithyhttp.UserAgentBuilder
}
// newRequestUserAgent returns a new requestUserAgent which will set the User-Agent and X-Amz-User-Agent for the
// request.
//
// User-Agent example:
// aws-sdk-go-v2/1.2.3
//
// X-Amz-User-Agent example:
// aws-sdk-go-v2/1.2.3 md/GOOS/linux md/GOARCH/amd64 lang/go/1.15
func newRequestUserAgent() *requestUserAgent {
userAgent, sdkAgent := smithyhttp.NewUserAgentBuilder(), smithyhttp.NewUserAgentBuilder()
addProductName(userAgent)
addProductName(sdkAgent)
r := &requestUserAgent{
sdkAgent: sdkAgent,
userAgent: userAgent,
}
addSDKMetadata(r)
return r
}
func addSDKMetadata(r *requestUserAgent) {
r.AddSDKAgentKey(OperatingSystemMetadata, getNormalizedOSName())
r.AddSDKAgentKeyValue(LanguageMetadata, "go", languageVersion)
r.AddSDKAgentKeyValue(AdditionalMetadata, "GOOS", runtime.GOOS)
r.AddSDKAgentKeyValue(AdditionalMetadata, "GOARCH", runtime.GOARCH)
if ev := os.Getenv(execEnvVar); len(ev) > 0 {
r.AddSDKAgentKey(EnvironmentMetadata, ev)
}
}
func addProductName(builder *smithyhttp.UserAgentBuilder) {
builder.AddKeyValue(aws.SDKName, aws.SDKVersion)
}
// AddUserAgentKey retrieves a requestUserAgent from the provided stack, or initializes one.
func AddUserAgentKey(key string) func(*middleware.Stack) error {
return func(stack *middleware.Stack) error {
requestUserAgent, err := getOrAddRequestUserAgent(stack)
if err != nil {
return err
}
requestUserAgent.AddUserAgentKey(key)
return nil
}
}
// AddUserAgentKeyValue retrieves a requestUserAgent from the provided stack, or initializes one.
func AddUserAgentKeyValue(key, value string) func(*middleware.Stack) error {
return func(stack *middleware.Stack) error {
requestUserAgent, err := getOrAddRequestUserAgent(stack)
if err != nil {
return err
}
requestUserAgent.AddUserAgentKeyValue(key, value)
return nil
}
}
// AddSDKAgentKey retrieves a requestUserAgent from the provided stack, or initializes one.
func AddSDKAgentKey(keyType SDKAgentKeyType, key string) func(*middleware.Stack) error {
return func(stack *middleware.Stack) error {
requestUserAgent, err := getOrAddRequestUserAgent(stack)
if err != nil {
return err
}
requestUserAgent.AddSDKAgentKey(keyType, key)
return nil
}
}
// AddSDKAgentKeyValue retrieves a requestUserAgent from the provided stack, or initializes one.
func AddSDKAgentKeyValue(keyType SDKAgentKeyType, key, value string) func(*middleware.Stack) error {
return func(stack *middleware.Stack) error {
requestUserAgent, err := getOrAddRequestUserAgent(stack)
if err != nil {
return err
}
requestUserAgent.AddSDKAgentKeyValue(keyType, key, value)
return nil
}
}
// AddRequestUserAgentMiddleware registers a requestUserAgent middleware on the stack if not present.
func AddRequestUserAgentMiddleware(stack *middleware.Stack) error {
_, err := getOrAddRequestUserAgent(stack)
return err
}
func getOrAddRequestUserAgent(stack *middleware.Stack) (*requestUserAgent, error) {
id := (*requestUserAgent)(nil).ID()
bm, ok := stack.Build.Get(id)
if !ok {
bm = newRequestUserAgent()
err := stack.Build.Add(bm, middleware.After)
if err != nil {
return nil, err
}
}
requestUserAgent, ok := bm.(*requestUserAgent)
if !ok {
return nil, fmt.Errorf("%T for %s middleware did not match expected type", bm, id)
}
return requestUserAgent, nil
}
// AddUserAgentKey adds the component identified by name to the User-Agent string.
func (u *requestUserAgent) AddUserAgentKey(key string) {
u.userAgent.AddKey(key)
}
// AddUserAgentKeyValue adds the key identified by the given name and value to the User-Agent string.
func (u *requestUserAgent) AddUserAgentKeyValue(key, value string) {
u.userAgent.AddKeyValue(key, value)
}
// AddUserAgentKey adds the component identified by name to the User-Agent string.
func (u *requestUserAgent) AddSDKAgentKey(keyType SDKAgentKeyType, key string) {
// TODO: should target sdkAgent
u.userAgent.AddKey(keyType.string() + "/" + key)
}
// AddUserAgentKeyValue adds the key identified by the given name and value to the User-Agent string.
func (u *requestUserAgent) AddSDKAgentKeyValue(keyType SDKAgentKeyType, key, value string) {
// TODO: should target sdkAgent
u.userAgent.AddKeyValue(keyType.string()+"/"+key, value)
}
// ID the name of the middleware.
func (u *requestUserAgent) ID() string {
return "UserAgent"
}
// HandleBuild adds or appends the constructed user agent to the request.
func (u *requestUserAgent) HandleBuild(ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler) (
out middleware.BuildOutput, metadata middleware.Metadata, err error,
) {
switch req := in.Request.(type) {
case *smithyhttp.Request:
u.addHTTPUserAgent(req)
// TODO: To be re-enabled
// u.addHTTPSDKAgent(req)
default:
return out, metadata, fmt.Errorf("unknown transport type %T", in)
}
return next.HandleBuild(ctx, in)
}
func (u *requestUserAgent) addHTTPUserAgent(request *smithyhttp.Request) {
const userAgent = "User-Agent"
updateHTTPHeader(request, userAgent, u.userAgent.Build())
}
func (u *requestUserAgent) addHTTPSDKAgent(request *smithyhttp.Request) {
const sdkAgent = "X-Amz-User-Agent"
updateHTTPHeader(request, sdkAgent, u.sdkAgent.Build())
}
func updateHTTPHeader(request *smithyhttp.Request, header string, value string) {
var current string
if v := request.Header[header]; len(v) > 0 {
current = v[0]
}
if len(current) > 0 {
current = value + " " + current
} else {
current = value
}
request.Header[header] = append(request.Header[header][:0], current)
}

61
vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/query/array.go generated vendored Normal file
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package query
import (
"fmt"
"net/url"
)
// Array represents the encoding of Query lists and sets. A Query array is a
// representation of a list of values of a fixed type. A serialized array might
// look like the following:
//
// ListName.member.1=foo
// &ListName.member.2=bar
// &Listname.member.3=baz
type Array struct {
// The query values to add the array to.
values url.Values
// The array's prefix, which includes the names of all parent structures
// and ends with the name of the list. For example, the prefix might be
// "ParentStructure.ListName". This prefix will be used to form the full
// keys for each element in the list. For example, an entry might have the
// key "ParentStructure.ListName.member.MemberName.1".
//
// While this is currently represented as a string that gets added to, it
// could also be represented as a stack that only gets condensed into a
// string when a finalized key is created. This could potentially reduce
// allocations.
prefix string
// Whether the list is flat or not. A list that is not flat will produce the
// following entry to the url.Values for a given entry:
// ListName.MemberName.1=value
// A list that is flat will produce the following:
// ListName.1=value
flat bool
// The location name of the member. In most cases this should be "member".
memberName string
// Elements are stored in values, so we keep track of the list size here.
size int32
}
func newArray(values url.Values, prefix string, flat bool, memberName string) *Array {
return &Array{
values: values,
prefix: prefix,
flat: flat,
memberName: memberName,
}
}
// Value adds a new element to the Query Array. Returns a Value type used to
// encode the array element.
func (a *Array) Value() Value {
// Query lists start a 1, so adjust the size first
a.size++
prefix := a.prefix
if !a.flat {
prefix = fmt.Sprintf("%s.%s", prefix, a.memberName)
}
// Lists can't have flat members
return newValue(a.values, fmt.Sprintf("%s.%d", prefix, a.size), false)
}

80
vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/query/encoder.go generated vendored Normal file
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package query
import (
"io"
"net/url"
"sort"
)
// Encoder is a Query encoder that supports construction of Query body
// values using methods.
type Encoder struct {
// The query values that will be built up to manage encoding.
values url.Values
// The writer that the encoded body will be written to.
writer io.Writer
Value
}
// NewEncoder returns a new Query body encoder
func NewEncoder(writer io.Writer) *Encoder {
values := url.Values{}
return &Encoder{
values: values,
writer: writer,
Value: newBaseValue(values),
}
}
// Encode returns the []byte slice representing the current
// state of the Query encoder.
func (e Encoder) Encode() error {
ws, ok := e.writer.(interface{ WriteString(string) (int, error) })
if !ok {
// Fall back to less optimal byte slice casting if WriteString isn't available.
ws = &wrapWriteString{writer: e.writer}
}
// Get the keys and sort them to have a stable output
keys := make([]string, 0, len(e.values))
for k := range e.values {
keys = append(keys, k)
}
sort.Strings(keys)
isFirstEntry := true
for _, key := range keys {
queryValues := e.values[key]
escapedKey := url.QueryEscape(key)
for _, value := range queryValues {
if !isFirstEntry {
if _, err := ws.WriteString(`&`); err != nil {
return err
}
} else {
isFirstEntry = false
}
if _, err := ws.WriteString(escapedKey); err != nil {
return err
}
if _, err := ws.WriteString(`=`); err != nil {
return err
}
if _, err := ws.WriteString(url.QueryEscape(value)); err != nil {
return err
}
}
}
return nil
}
// wrapWriteString wraps an io.Writer to provide a WriteString method
// where one is not available.
type wrapWriteString struct {
writer io.Writer
}
// WriteString writes a string to the wrapped writer by casting it to
// a byte array first.
func (w wrapWriteString) WriteString(v string) (int, error) {
return w.writer.Write([]byte(v))
}

78
vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/query/map.go generated vendored Normal file
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package query
import (
"fmt"
"net/url"
)
// Map represents the encoding of Query maps. A Query map is a representation
// of a mapping of arbitrary string keys to arbitrary values of a fixed type.
// A Map differs from an Object in that the set of keys is not fixed, in that
// the values must all be of the same type, and that map entries are ordered.
// A serialized map might look like the following:
//
// MapName.entry.1.key=Foo
// &MapName.entry.1.value=spam
// &MapName.entry.2.key=Bar
// &MapName.entry.2.value=eggs
type Map struct {
// The query values to add the map to.
values url.Values
// The map's prefix, which includes the names of all parent structures
// and ends with the name of the object. For example, the prefix might be
// "ParentStructure.MapName". This prefix will be used to form the full
// keys for each key-value pair of the map. For example, a value might have
// the key "ParentStructure.MapName.1.value".
//
// While this is currently represented as a string that gets added to, it
// could also be represented as a stack that only gets condensed into a
// string when a finalized key is created. This could potentially reduce
// allocations.
prefix string
// Whether the map is flat or not. A map that is not flat will produce the
// following entries to the url.Values for a given key-value pair:
// MapName.entry.1.KeyLocationName=mykey
// MapName.entry.1.ValueLocationName=myvalue
// A map that is flat will produce the following:
// MapName.1.KeyLocationName=mykey
// MapName.1.ValueLocationName=myvalue
flat bool
// The location name of the key. In most cases this should be "key".
keyLocationName string
// The location name of the value. In most cases this should be "value".
valueLocationName string
// Elements are stored in values, so we keep track of the list size here.
size int32
}
func newMap(values url.Values, prefix string, flat bool, keyLocationName string, valueLocationName string) *Map {
return &Map{
values: values,
prefix: prefix,
flat: flat,
keyLocationName: keyLocationName,
valueLocationName: valueLocationName,
}
}
// Key adds the given named key to the Query map.
// Returns a Value encoder that should be used to encode a Query value type.
func (m *Map) Key(name string) Value {
// Query lists start a 1, so adjust the size first
m.size++
var key string
var value string
if m.flat {
key = fmt.Sprintf("%s.%d.%s", m.prefix, m.size, m.keyLocationName)
value = fmt.Sprintf("%s.%d.%s", m.prefix, m.size, m.valueLocationName)
} else {
key = fmt.Sprintf("%s.entry.%d.%s", m.prefix, m.size, m.keyLocationName)
value = fmt.Sprintf("%s.entry.%d.%s", m.prefix, m.size, m.valueLocationName)
}
// The key can only be a string, so we just go ahead and set it here
newValue(m.values, key, false).String(name)
// Maps can't have flat members
return newValue(m.values, value, false)
}

62
vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/query/middleware.go generated vendored Normal file
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package query
import (
"context"
"fmt"
"io/ioutil"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// AddAsGetRequestMiddleware adds a middleware to the Serialize stack after the
// operation serializer that will convert the query request body to a GET
// operation with the query message in the HTTP request querystring.
func AddAsGetRequestMiddleware(stack *middleware.Stack) error {
return stack.Serialize.Insert(&asGetRequest{}, "OperationSerializer", middleware.After)
}
type asGetRequest struct{}
func (*asGetRequest) ID() string { return "Query:AsGetRequest" }
func (m *asGetRequest) HandleSerialize(
ctx context.Context, input middleware.SerializeInput, next middleware.SerializeHandler,
) (
out middleware.SerializeOutput, metadata middleware.Metadata, err error,
) {
req, ok := input.Request.(*smithyhttp.Request)
if !ok {
return out, metadata, fmt.Errorf("expect smithy HTTP Request, got %T", input.Request)
}
req.Method = "GET"
// If the stream is not set, nothing else to do.
stream := req.GetStream()
if stream == nil {
return next.HandleSerialize(ctx, input)
}
// Clear the stream since there will not be any body.
req.Header.Del("Content-Type")
req, err = req.SetStream(nil)
if err != nil {
return out, metadata, fmt.Errorf("unable update request body %w", err)
}
input.Request = req
// Update request query with the body's query string value.
delim := ""
if len(req.URL.RawQuery) != 0 {
delim = "&"
}
b, err := ioutil.ReadAll(stream)
if err != nil {
return out, metadata, fmt.Errorf("unable to get request body %w", err)
}
req.URL.RawQuery += delim + string(b)
return next.HandleSerialize(ctx, input)
}

56
vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/query/object.go generated vendored Normal file
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package query
import (
"fmt"
"net/url"
)
// Object represents the encoding of Query structures and unions. A Query
// object is a representation of a mapping of string keys to arbitrary
// values where there is a fixed set of keys whose values each have their
// own known type. A serialized object might look like the following:
//
// ObjectName.Foo=value
// &ObjectName.Bar=5
type Object struct {
// The query values to add the object to.
values url.Values
// The object's prefix, which includes the names of all parent structures
// and ends with the name of the object. For example, the prefix might be
// "ParentStructure.ObjectName". This prefix will be used to form the full
// keys for each member of the object. For example, a member might have the
// key "ParentStructure.ObjectName.MemberName".
//
// While this is currently represented as a string that gets added to, it
// could also be represented as a stack that only gets condensed into a
// string when a finalized key is created. This could potentially reduce
// allocations.
prefix string
}
func newObject(values url.Values, prefix string) *Object {
return &Object{
values: values,
prefix: prefix,
}
}
// Key adds the given named key to the Query object.
// Returns a Value encoder that should be used to encode a Query value type.
func (o *Object) Key(name string) Value {
return o.key(name, false)
}
// FlatKey adds the given named key to the Query object.
// Returns a Value encoder that should be used to encode a Query value type. The
// value will be flattened if it is a map or array.
func (o *Object) FlatKey(name string) Value {
return o.key(name, true)
}
func (o *Object) key(name string, flatValue bool) Value {
if o.prefix != "" {
return newValue(o.values, fmt.Sprintf("%s.%s", o.prefix, name), flatValue)
}
return newValue(o.values, name, flatValue)
}

106
vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/query/value.go generated vendored Normal file
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package query
import (
"math/big"
"net/url"
"github.com/aws/smithy-go/encoding/httpbinding"
)
// Value represents a Query Value type.
type Value struct {
// The query values to add the value to.
values url.Values
// The value's key, which will form the prefix for complex types.
key string
// Whether the value should be flattened or not if it's a flattenable type.
flat bool
queryValue httpbinding.QueryValue
}
func newValue(values url.Values, key string, flat bool) Value {
return Value{
values: values,
key: key,
flat: flat,
queryValue: httpbinding.NewQueryValue(values, key, false),
}
}
func newBaseValue(values url.Values) Value {
return Value{
values: values,
queryValue: httpbinding.NewQueryValue(nil, "", false),
}
}
// Array returns a new Array encoder.
func (qv Value) Array(locationName string) *Array {
return newArray(qv.values, qv.key, qv.flat, locationName)
}
// Object returns a new Object encoder.
func (qv Value) Object() *Object {
return newObject(qv.values, qv.key)
}
// Map returns a new Map encoder.
func (qv Value) Map(keyLocationName string, valueLocationName string) *Map {
return newMap(qv.values, qv.key, qv.flat, keyLocationName, valueLocationName)
}
// Base64EncodeBytes encodes v as a base64 query string value.
// This is intended to enable compatibility with the JSON encoder.
func (qv Value) Base64EncodeBytes(v []byte) {
qv.queryValue.Blob(v)
}
// Boolean encodes v as a query string value
func (qv Value) Boolean(v bool) {
qv.queryValue.Boolean(v)
}
// String encodes v as a query string value
func (qv Value) String(v string) {
qv.queryValue.String(v)
}
// Byte encodes v as a query string value
func (qv Value) Byte(v int8) {
qv.queryValue.Byte(v)
}
// Short encodes v as a query string value
func (qv Value) Short(v int16) {
qv.queryValue.Short(v)
}
// Integer encodes v as a query string value
func (qv Value) Integer(v int32) {
qv.queryValue.Integer(v)
}
// Long encodes v as a query string value
func (qv Value) Long(v int64) {
qv.queryValue.Long(v)
}
// Float encodes v as a query string value
func (qv Value) Float(v float32) {
qv.queryValue.Float(v)
}
// Double encodes v as a query string value
func (qv Value) Double(v float64) {
qv.queryValue.Double(v)
}
// BigInteger encodes v as a query string value
func (qv Value) BigInteger(v *big.Int) {
qv.queryValue.BigInteger(v)
}
// BigDecimal encodes v as a query string value
func (qv Value) BigDecimal(v *big.Float) {
qv.queryValue.BigDecimal(v)
}

56
vendor/github.com/aws/aws-sdk-go-v2/aws/protocol/xml/error_utils.go generated vendored Normal file
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package xml
import (
"encoding/xml"
"fmt"
"io"
)
// ErrorComponents represents the error response fields
// that will be deserialized from an xml error response body
type ErrorComponents struct {
Code string
Message string
RequestID string
}
// GetErrorResponseComponents returns the error fields from an xml error response body
func GetErrorResponseComponents(r io.Reader, noErrorWrapping bool) (ErrorComponents, error) {
if noErrorWrapping {
var errResponse noWrappedErrorResponse
if err := xml.NewDecoder(r).Decode(&errResponse); err != nil && err != io.EOF {
return ErrorComponents{}, fmt.Errorf("error while deserializing xml error response: %w", err)
}
return ErrorComponents{
Code: errResponse.Code,
Message: errResponse.Message,
RequestID: errResponse.RequestID,
}, nil
}
var errResponse wrappedErrorResponse
if err := xml.NewDecoder(r).Decode(&errResponse); err != nil && err != io.EOF {
return ErrorComponents{}, fmt.Errorf("error while deserializing xml error response: %w", err)
}
return ErrorComponents{
Code: errResponse.Code,
Message: errResponse.Message,
RequestID: errResponse.RequestID,
}, nil
}
// noWrappedErrorResponse represents the error response body with
// no internal <Error></Error wrapping
type noWrappedErrorResponse struct {
Code string `xml:"Code"`
Message string `xml:"Message"`
RequestID string `xml:"RequestId"`
}
// wrappedErrorResponse represents the error response body
// wrapped within <Error>...</Error>
type wrappedErrorResponse struct {
Code string `xml:"Error>Code"`
Message string `xml:"Error>Message"`
RequestID string `xml:"RequestId"`
}

96
vendor/github.com/aws/aws-sdk-go-v2/aws/ratelimit/token_bucket.go generated vendored Normal file
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package ratelimit
import (
"sync"
)
// TokenBucket provides a concurrency safe utility for adding and removing
// tokens from the available token bucket.
type TokenBucket struct {
remainingTokens uint
maxCapacity uint
minCapacity uint
mu sync.Mutex
}
// NewTokenBucket returns an initialized TokenBucket with the capacity
// specified.
func NewTokenBucket(i uint) *TokenBucket {
return &TokenBucket{
remainingTokens: i,
maxCapacity: i,
minCapacity: 1,
}
}
// Retrieve attempts to reduce the available tokens by the amount requested. If
// there are tokens available true will be returned along with the number of
// available tokens remaining. If amount requested is larger than the available
// capacity, false will be returned along with the available capacity. If the
// amount is less than the available capacity, the capacity will be reduced by
// that amount, and the remaining capacity and true will be returned.
func (t *TokenBucket) Retrieve(amount uint) (available uint, retrieved bool) {
t.mu.Lock()
defer t.mu.Unlock()
if amount > t.remainingTokens {
return t.remainingTokens, false
}
t.remainingTokens -= amount
return t.remainingTokens, true
}
// Refund returns the amount of tokens back to the available token bucket, up
// to the initial capacity.
func (t *TokenBucket) Refund(amount uint) {
t.mu.Lock()
defer t.mu.Unlock()
// Capacity cannot exceed max capacity.
t.remainingTokens = uintMin(t.remainingTokens+amount, t.maxCapacity)
}
// Capacity returns the maximum capacity of tokens that the bucket could
// contain.
func (t *TokenBucket) Capacity() uint {
t.mu.Lock()
defer t.mu.Unlock()
return t.maxCapacity
}
// Remaining returns the number of tokens that remaining in the bucket.
func (t *TokenBucket) Remaining() uint {
t.mu.Lock()
defer t.mu.Unlock()
return t.remainingTokens
}
// Resize adjusts the size of the token bucket. Returns the capacity remaining.
func (t *TokenBucket) Resize(size uint) uint {
t.mu.Lock()
defer t.mu.Unlock()
t.maxCapacity = uintMax(size, t.minCapacity)
// Capacity needs to be capped at max capacity, if max size reduced.
t.remainingTokens = uintMin(t.remainingTokens, t.maxCapacity)
return t.remainingTokens
}
func uintMin(a, b uint) uint {
if a < b {
return a
}
return b
}
func uintMax(a, b uint) uint {
if a > b {
return a
}
return b
}

87
vendor/github.com/aws/aws-sdk-go-v2/aws/ratelimit/token_rate_limit.go generated vendored Normal file
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package ratelimit
import (
"context"
"fmt"
)
type rateToken struct {
tokenCost uint
bucket *TokenBucket
}
func (t rateToken) release() error {
t.bucket.Refund(t.tokenCost)
return nil
}
// TokenRateLimit provides a Token Bucket RateLimiter implementation
// that limits the overall number of retry attempts that can be made across
// operation invocations.
type TokenRateLimit struct {
bucket *TokenBucket
}
// NewTokenRateLimit returns an TokenRateLimit with default values.
// Functional options can configure the retry rate limiter.
func NewTokenRateLimit(tokens uint) *TokenRateLimit {
return &TokenRateLimit{
bucket: NewTokenBucket(tokens),
}
}
func isTimeoutError(error) bool {
return false
}
type canceledError struct {
Err error
}
func (c canceledError) CanceledError() bool { return true }
func (c canceledError) Unwrap() error { return c.Err }
func (c canceledError) Error() string {
return fmt.Sprintf("canceled, %v", c.Err)
}
// GetToken may cause a available pool of retry quota to be
// decremented. Will return an error if the decremented value can not be
// reduced from the retry quota.
func (l *TokenRateLimit) GetToken(ctx context.Context, cost uint) (func() error, error) {
select {
case <-ctx.Done():
return nil, canceledError{Err: ctx.Err()}
default:
}
if avail, ok := l.bucket.Retrieve(cost); !ok {
return nil, QuotaExceededError{Available: avail, Requested: cost}
}
return rateToken{
tokenCost: cost,
bucket: l.bucket,
}.release, nil
}
// AddTokens increments the token bucket by a fixed amount.
func (l *TokenRateLimit) AddTokens(v uint) error {
l.bucket.Refund(v)
return nil
}
// Remaining returns the number of remaining tokens in the bucket.
func (l *TokenRateLimit) Remaining() uint {
return l.bucket.Remaining()
}
// QuotaExceededError provides the SDK error when the retries for a given
// token bucket have been exhausted.
type QuotaExceededError struct {
Available uint
Requested uint
}
func (e QuotaExceededError) Error() string {
return fmt.Sprintf("retry quota exceeded, %d available, %d requested",
e.Available, e.Requested)
}

25
vendor/github.com/aws/aws-sdk-go-v2/aws/request.go generated vendored Normal file
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package aws
import (
"fmt"
)
// TODO remove replace with smithy.CanceledError
// RequestCanceledError is the error that will be returned by an API request
// that was canceled. Requests given a Context may return this error when
// canceled.
type RequestCanceledError struct {
Err error
}
// CanceledError returns true to satisfy interfaces checking for canceled errors.
func (*RequestCanceledError) CanceledError() bool { return true }
// Unwrap returns the underlying error, if there was one.
func (e *RequestCanceledError) Unwrap() error {
return e.Err
}
func (e *RequestCanceledError) Error() string {
return fmt.Sprintf("request canceled, %v", e.Err)
}

156
vendor/github.com/aws/aws-sdk-go-v2/aws/retry/adaptive.go generated vendored Normal file
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package retry
import (
"context"
"fmt"
"time"
"github.com/aws/aws-sdk-go-v2/aws"
"github.com/aws/aws-sdk-go-v2/internal/sdk"
)
const (
// DefaultRequestCost is the cost of a single request from the adaptive
// rate limited token bucket.
DefaultRequestCost uint = 1
)
// DefaultThrottles provides the set of errors considered throttle errors that
// are checked by default.
var DefaultThrottles = []IsErrorThrottle{
ThrottleErrorCode{
Codes: DefaultThrottleErrorCodes,
},
}
// AdaptiveModeOptions provides the functional options for configuring the
// adaptive retry mode, and delay behavior.
type AdaptiveModeOptions struct {
// If the adaptive token bucket is empty, when an attempt will be made
// AdaptiveMode will sleep until a token is available. This can occur when
// attempts fail with throttle errors. Use this option to disable the sleep
// until token is available, and return error immediately.
FailOnNoAttemptTokens bool
// The cost of an attempt from the AdaptiveMode's adaptive token bucket.
RequestCost uint
// Set of strategies to determine if the attempt failed due to a throttle
// error.
//
// It is safe to append to this list in NewAdaptiveMode's functional options.
Throttles []IsErrorThrottle
// Set of options for standard retry mode that AdaptiveMode is built on top
// of. AdaptiveMode may apply its own defaults to Standard retry mode that
// are different than the defaults of NewStandard. Use these options to
// override the default options.
StandardOptions []func(*StandardOptions)
}
// AdaptiveMode provides an experimental retry strategy that expands on the
// Standard retry strategy, adding client attempt rate limits. The attempt rate
// limit is initially unrestricted, but becomes restricted when the attempt
// fails with for a throttle error. When restricted AdaptiveMode may need to
// sleep before an attempt is made, if too many throttles have been received.
// AdaptiveMode's sleep can be canceled with context cancel. Set
// AdaptiveModeOptions FailOnNoAttemptTokens to change the behavior from sleep,
// to fail fast.
//
// Eventually unrestricted attempt rate limit will be restored once attempts no
// longer are failing due to throttle errors.
type AdaptiveMode struct {
options AdaptiveModeOptions
throttles IsErrorThrottles
retryer aws.RetryerV2
rateLimit *adaptiveRateLimit
}
// NewAdaptiveMode returns an initialized AdaptiveMode retry strategy.
func NewAdaptiveMode(optFns ...func(*AdaptiveModeOptions)) *AdaptiveMode {
o := AdaptiveModeOptions{
RequestCost: DefaultRequestCost,
Throttles: append([]IsErrorThrottle{}, DefaultThrottles...),
}
for _, fn := range optFns {
fn(&o)
}
return &AdaptiveMode{
options: o,
throttles: IsErrorThrottles(o.Throttles),
retryer: NewStandard(o.StandardOptions...),
rateLimit: newAdaptiveRateLimit(),
}
}
// IsErrorRetryable returns if the failed attempt is retryable. This check
// should determine if the error can be retried, or if the error is
// terminal.
func (a *AdaptiveMode) IsErrorRetryable(err error) bool {
return a.retryer.IsErrorRetryable(err)
}
// MaxAttempts returns the maximum number of attempts that can be made for
// a attempt before failing. A value of 0 implies that the attempt should
// be retried until it succeeds if the errors are retryable.
func (a *AdaptiveMode) MaxAttempts() int {
return a.retryer.MaxAttempts()
}
// RetryDelay returns the delay that should be used before retrying the
// attempt. Will return error if the if the delay could not be determined.
func (a *AdaptiveMode) RetryDelay(attempt int, opErr error) (
time.Duration, error,
) {
return a.retryer.RetryDelay(attempt, opErr)
}
// GetRetryToken attempts to deduct the retry cost from the retry token pool.
// Returning the token release function, or error.
func (a *AdaptiveMode) GetRetryToken(ctx context.Context, opErr error) (
releaseToken func(error) error, err error,
) {
return a.retryer.GetRetryToken(ctx, opErr)
}
// GetInitialToken returns the initial attempt token that can increment the
// retry token pool if the attempt is successful.
//
// Deprecated: This method does not provide a way to block using Context,
// nor can it return an error. Use RetryerV2, and GetAttemptToken instead. Only
// present to implement Retryer interface.
func (a *AdaptiveMode) GetInitialToken() (releaseToken func(error) error) {
return nopRelease
}
// GetAttemptToken returns the attempt token that can be used to rate limit
// attempt calls. Will be used by the SDK's retry package's Attempt
// middleware to get a attempt token prior to calling the temp and releasing
// the attempt token after the attempt has been made.
func (a *AdaptiveMode) GetAttemptToken(ctx context.Context) (func(error) error, error) {
for {
acquiredToken, waitTryAgain := a.rateLimit.AcquireToken(a.options.RequestCost)
if acquiredToken {
break
}
if a.options.FailOnNoAttemptTokens {
return nil, fmt.Errorf(
"unable to get attempt token, and FailOnNoAttemptTokens enables")
}
if err := sdk.SleepWithContext(ctx, waitTryAgain); err != nil {
return nil, fmt.Errorf("failed to wait for token to be available, %w", err)
}
}
return a.handleResponse, nil
}
func (a *AdaptiveMode) handleResponse(opErr error) error {
throttled := a.throttles.IsErrorThrottle(opErr).Bool()
a.rateLimit.Update(throttled)
return nil
}

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package retry
import (
"math"
"sync"
"time"
"github.com/aws/aws-sdk-go-v2/internal/sdk"
)
type adaptiveRateLimit struct {
tokenBucketEnabled bool
smooth float64
beta float64
scaleConstant float64
minFillRate float64
fillRate float64
calculatedRate float64
lastRefilled time.Time
measuredTxRate float64
lastTxRateBucket float64
requestCount int64
lastMaxRate float64
lastThrottleTime time.Time
timeWindow float64
tokenBucket *adaptiveTokenBucket
mu sync.Mutex
}
func newAdaptiveRateLimit() *adaptiveRateLimit {
now := sdk.NowTime()
return &adaptiveRateLimit{
smooth: 0.8,
beta: 0.7,
scaleConstant: 0.4,
minFillRate: 0.5,
lastTxRateBucket: math.Floor(timeFloat64Seconds(now)),
lastThrottleTime: now,
tokenBucket: newAdaptiveTokenBucket(0),
}
}
func (a *adaptiveRateLimit) Enable(v bool) {
a.mu.Lock()
defer a.mu.Unlock()
a.tokenBucketEnabled = v
}
func (a *adaptiveRateLimit) AcquireToken(amount uint) (
tokenAcquired bool, waitTryAgain time.Duration,
) {
a.mu.Lock()
defer a.mu.Unlock()
if !a.tokenBucketEnabled {
return true, 0
}
a.tokenBucketRefill()
available, ok := a.tokenBucket.Retrieve(float64(amount))
if !ok {
waitDur := float64Seconds((float64(amount) - available) / a.fillRate)
return false, waitDur
}
return true, 0
}
func (a *adaptiveRateLimit) Update(throttled bool) {
a.mu.Lock()
defer a.mu.Unlock()
a.updateMeasuredRate()
if throttled {
rateToUse := a.measuredTxRate
if a.tokenBucketEnabled {
rateToUse = math.Min(a.measuredTxRate, a.fillRate)
}
a.lastMaxRate = rateToUse
a.calculateTimeWindow()
a.lastThrottleTime = sdk.NowTime()
a.calculatedRate = a.cubicThrottle(rateToUse)
a.tokenBucketEnabled = true
} else {
a.calculateTimeWindow()
a.calculatedRate = a.cubicSuccess(sdk.NowTime())
}
newRate := math.Min(a.calculatedRate, 2*a.measuredTxRate)
a.tokenBucketUpdateRate(newRate)
}
func (a *adaptiveRateLimit) cubicSuccess(t time.Time) float64 {
dt := secondsFloat64(t.Sub(a.lastThrottleTime))
return (a.scaleConstant * math.Pow(dt-a.timeWindow, 3)) + a.lastMaxRate
}
func (a *adaptiveRateLimit) cubicThrottle(rateToUse float64) float64 {
return rateToUse * a.beta
}
func (a *adaptiveRateLimit) calculateTimeWindow() {
a.timeWindow = math.Pow((a.lastMaxRate*(1.-a.beta))/a.scaleConstant, 1./3.)
}
func (a *adaptiveRateLimit) tokenBucketUpdateRate(newRPS float64) {
a.tokenBucketRefill()
a.fillRate = math.Max(newRPS, a.minFillRate)
a.tokenBucket.Resize(newRPS)
}
func (a *adaptiveRateLimit) updateMeasuredRate() {
now := sdk.NowTime()
timeBucket := math.Floor(timeFloat64Seconds(now)*2.) / 2.
a.requestCount++
if timeBucket > a.lastTxRateBucket {
currentRate := float64(a.requestCount) / (timeBucket - a.lastTxRateBucket)
a.measuredTxRate = (currentRate * a.smooth) + (a.measuredTxRate * (1. - a.smooth))
a.requestCount = 0
a.lastTxRateBucket = timeBucket
}
}
func (a *adaptiveRateLimit) tokenBucketRefill() {
now := sdk.NowTime()
if a.lastRefilled.IsZero() {
a.lastRefilled = now
return
}
fillAmount := secondsFloat64(now.Sub(a.lastRefilled)) * a.fillRate
a.tokenBucket.Refund(fillAmount)
a.lastRefilled = now
}
func float64Seconds(v float64) time.Duration {
return time.Duration(v * float64(time.Second))
}
func secondsFloat64(v time.Duration) float64 {
return float64(v) / float64(time.Second)
}
func timeFloat64Seconds(v time.Time) float64 {
return float64(v.UnixNano()) / float64(time.Second)
}

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package retry
import (
"math"
"sync"
)
// adaptiveTokenBucket provides a concurrency safe utility for adding and
// removing tokens from the available token bucket.
type adaptiveTokenBucket struct {
remainingTokens float64
maxCapacity float64
minCapacity float64
mu sync.Mutex
}
// newAdaptiveTokenBucket returns an initialized adaptiveTokenBucket with the
// capacity specified.
func newAdaptiveTokenBucket(i float64) *adaptiveTokenBucket {
return &adaptiveTokenBucket{
remainingTokens: i,
maxCapacity: i,
minCapacity: 1,
}
}
// Retrieve attempts to reduce the available tokens by the amount requested. If
// there are tokens available true will be returned along with the number of
// available tokens remaining. If amount requested is larger than the available
// capacity, false will be returned along with the available capacity. If the
// amount is less than the available capacity, the capacity will be reduced by
// that amount, and the remaining capacity and true will be returned.
func (t *adaptiveTokenBucket) Retrieve(amount float64) (available float64, retrieved bool) {
t.mu.Lock()
defer t.mu.Unlock()
if amount > t.remainingTokens {
return t.remainingTokens, false
}
t.remainingTokens -= amount
return t.remainingTokens, true
}
// Refund returns the amount of tokens back to the available token bucket, up
// to the initial capacity.
func (t *adaptiveTokenBucket) Refund(amount float64) {
t.mu.Lock()
defer t.mu.Unlock()
// Capacity cannot exceed max capacity.
t.remainingTokens = math.Min(t.remainingTokens+amount, t.maxCapacity)
}
// Capacity returns the maximum capacity of tokens that the bucket could
// contain.
func (t *adaptiveTokenBucket) Capacity() float64 {
t.mu.Lock()
defer t.mu.Unlock()
return t.maxCapacity
}
// Remaining returns the number of tokens that remaining in the bucket.
func (t *adaptiveTokenBucket) Remaining() float64 {
t.mu.Lock()
defer t.mu.Unlock()
return t.remainingTokens
}
// Resize adjusts the size of the token bucket. Returns the capacity remaining.
func (t *adaptiveTokenBucket) Resize(size float64) float64 {
t.mu.Lock()
defer t.mu.Unlock()
t.maxCapacity = math.Max(size, t.minCapacity)
// Capacity needs to be capped at max capacity, if max size reduced.
t.remainingTokens = math.Min(t.remainingTokens, t.maxCapacity)
return t.remainingTokens
}

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// Package retry provides interfaces and implementations for SDK request retry behavior.
//
// Retryer Interface and Implementations
//
// This packages defines Retryer interface that is used to either implement custom retry behavior
// or to extend the existing retry implementations provided by the SDK. This packages provides a single
// retry implementations: Standard.
//
// Standard
//
// Standard is the default retryer implementation used by service clients. The standard retryer is a rate limited
// retryer that has a configurable max attempts to limit the number of retry attempts when a retryable error occurs.
// In addition, the retryer uses a configurable token bucket to rate limit the retry attempts across the client,
// and uses an additional delay policy to limit the time between a requests subsequent attempts.
//
// By default the standard retryer uses the DefaultRetryables slice of IsErrorRetryable types to determine whether
// a given error is retryable. By default this list of retryables includes the following:
// - Retrying errors that implement the RetryableError method, and return true.
// - Connection Errors
// - Errors that implement a ConnectionError, Temporary, or Timeout method that return true.
// - Connection Reset Errors.
// - net.OpErr types that are dialing errors or are temporary.
// - HTTP Status Codes: 500, 502, 503, and 504.
// - API Error Codes
// - RequestTimeout, RequestTimeoutException
// - Throttling, ThrottlingException, ThrottledException, RequestThrottledException, TooManyRequestsException,
// RequestThrottled, SlowDown, EC2ThrottledException
// - ProvisionedThroughputExceededException, RequestLimitExceeded, BandwidthLimitExceeded, LimitExceededException
// - TransactionInProgressException, PriorRequestNotComplete
//
// The standard retryer will not retry a request in the event if the context associated with the request
// has been cancelled. Applications must handle this case explicitly if they wish to retry with a different context
// value.
//
// You can configure the standard retryer implementation to fit your applications by constructing a standard retryer
// using the NewStandard function, and providing one more functional arguments that mutate the StandardOptions
// structure. StandardOptions provides the ability to modify the token bucket rate limiter, retryable error conditions,
// and the retry delay policy.
//
// For example to modify the default retry attempts for the standard retryer:
//
// // configure the custom retryer
// customRetry := retry.NewStandard(func(o *retry.StandardOptions) {
// o.MaxAttempts = 5
// })
//
// // create a service client with the retryer
// s3.NewFromConfig(cfg, func(o *s3.Options) {
// o.Retryer = customRetry
// })
//
// Utilities
//
// A number of package functions have been provided to easily wrap retryer implementations in an implementation agnostic
// way. These are:
//
// AddWithErrorCodes - Provides the ability to add additional API error codes that should be considered retryable
// in addition to those considered retryable by the provided retryer.
//
// AddWithMaxAttempts - Provides the ability to set the max number of attempts for retrying a request by wrapping
// a retryer implementation.
//
// AddWithMaxBackoffDelay - Provides the ability to set the max back off delay that can occur before retrying a
// request by wrapping a retryer implementation.
//
// The following package functions have been provided to easily satisfy different retry interfaces to further customize
// a given retryer's behavior:
//
// BackoffDelayerFunc - Can be used to wrap a function to satisfy the BackoffDelayer interface. For example,
// you can use this method to easily create custom back off policies to be used with the
// standard retryer.
//
// IsErrorRetryableFunc - Can be used to wrap a function to satisfy the IsErrorRetryable interface. For example,
// this can be used to extend the standard retryer to add additional logic ot determine if a
// error should be retried.
//
// IsErrorTimeoutFunc - Can be used to wrap a function to satisfy IsErrorTimeout interface. For example,
// this can be used to extend the standard retryer to add additional logic to determine if an
// error should be considered a timeout.
package retry

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package retry
import "fmt"
// MaxAttemptsError provides the error when the maximum number of attempts have
// been exceeded.
type MaxAttemptsError struct {
Attempt int
Err error
}
func (e *MaxAttemptsError) Error() string {
return fmt.Sprintf("exceeded maximum number of attempts, %d, %v", e.Attempt, e.Err)
}
// Unwrap returns the nested error causing the max attempts error. Provides the
// implementation for errors.Is and errors.As to unwrap nested errors.
func (e *MaxAttemptsError) Unwrap() error {
return e.Err
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/retry/jitter_backoff.go generated vendored Normal file
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package retry
import (
"math"
"time"
"github.com/aws/aws-sdk-go-v2/internal/rand"
"github.com/aws/aws-sdk-go-v2/internal/timeconv"
)
// ExponentialJitterBackoff provides backoff delays with jitter based on the
// number of attempts.
type ExponentialJitterBackoff struct {
maxBackoff time.Duration
// precomputed number of attempts needed to reach max backoff.
maxBackoffAttempts float64
randFloat64 func() (float64, error)
}
// NewExponentialJitterBackoff returns an ExponentialJitterBackoff configured
// for the max backoff.
func NewExponentialJitterBackoff(maxBackoff time.Duration) *ExponentialJitterBackoff {
return &ExponentialJitterBackoff{
maxBackoff: maxBackoff,
maxBackoffAttempts: math.Log2(
float64(maxBackoff) / float64(time.Second)),
randFloat64: rand.CryptoRandFloat64,
}
}
// BackoffDelay returns the duration to wait before the next attempt should be
// made. Returns an error if unable get a duration.
func (j *ExponentialJitterBackoff) BackoffDelay(attempt int, err error) (time.Duration, error) {
if attempt > int(j.maxBackoffAttempts) {
return j.maxBackoff, nil
}
b, err := j.randFloat64()
if err != nil {
return 0, err
}
// [0.0, 1.0) * 2 ^ attempts
ri := int64(1 << uint64(attempt))
delaySeconds := b * float64(ri)
return timeconv.FloatSecondsDur(delaySeconds), nil
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/retry/metadata.go generated vendored Normal file
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package retry
import (
awsmiddle "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/smithy-go/middleware"
)
// attemptResultsKey is a metadata accessor key to retrieve metadata
// for all request attempts.
type attemptResultsKey struct {
}
// GetAttemptResults retrieves attempts results from middleware metadata.
func GetAttemptResults(metadata middleware.Metadata) (AttemptResults, bool) {
m, ok := metadata.Get(attemptResultsKey{}).(AttemptResults)
return m, ok
}
// AttemptResults represents struct containing metadata returned by all request attempts.
type AttemptResults struct {
// Results is a slice consisting attempt result from all request attempts.
// Results are stored in order request attempt is made.
Results []AttemptResult
}
// AttemptResult represents attempt result returned by a single request attempt.
type AttemptResult struct {
// Err is the error if received for the request attempt.
Err error
// Retryable denotes if request may be retried. This states if an
// error is considered retryable.
Retryable bool
// Retried indicates if this request was retried.
Retried bool
// ResponseMetadata is any existing metadata passed via the response middlewares.
ResponseMetadata middleware.Metadata
}
// addAttemptResults adds attempt results to middleware metadata
func addAttemptResults(metadata *middleware.Metadata, v AttemptResults) {
metadata.Set(attemptResultsKey{}, v)
}
// GetRawResponse returns raw response recorded for the attempt result
func (a AttemptResult) GetRawResponse() interface{} {
return awsmiddle.GetRawResponse(a.ResponseMetadata)
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/retry/middleware.go generated vendored Normal file
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package retry
import (
"context"
"fmt"
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go-v2/aws"
awsmiddle "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/internal/sdk"
"github.com/aws/smithy-go/logging"
"github.com/aws/smithy-go/middleware"
smithymiddle "github.com/aws/smithy-go/middleware"
"github.com/aws/smithy-go/transport/http"
)
// RequestCloner is a function that can take an input request type and clone
// the request for use in a subsequent retry attempt.
type RequestCloner func(interface{}) interface{}
type retryMetadata struct {
AttemptNum int
AttemptTime time.Time
MaxAttempts int
AttemptClockSkew time.Duration
}
// Attempt is a Smithy Finalize middleware that handles retry attempts using
// the provided Retryer implementation.
type Attempt struct {
// Enable the logging of retry attempts performed by the SDK. This will
// include logging retry attempts, unretryable errors, and when max
// attempts are reached.
LogAttempts bool
retryer aws.RetryerV2
requestCloner RequestCloner
}
// NewAttemptMiddleware returns a new Attempt retry middleware.
func NewAttemptMiddleware(retryer aws.Retryer, requestCloner RequestCloner, optFns ...func(*Attempt)) *Attempt {
m := &Attempt{
retryer: wrapAsRetryerV2(retryer),
requestCloner: requestCloner,
}
for _, fn := range optFns {
fn(m)
}
return m
}
// ID returns the middleware identifier
func (r *Attempt) ID() string { return "Retry" }
func (r Attempt) logf(logger logging.Logger, classification logging.Classification, format string, v ...interface{}) {
if !r.LogAttempts {
return
}
logger.Logf(classification, format, v...)
}
// HandleFinalize utilizes the provider Retryer implementation to attempt
// retries over the next handler
func (r *Attempt) HandleFinalize(ctx context.Context, in smithymiddle.FinalizeInput, next smithymiddle.FinalizeHandler) (
out smithymiddle.FinalizeOutput, metadata smithymiddle.Metadata, err error,
) {
var attemptNum int
var attemptClockSkew time.Duration
var attemptResults AttemptResults
maxAttempts := r.retryer.MaxAttempts()
releaseRetryToken := nopRelease
for {
attemptNum++
attemptInput := in
attemptInput.Request = r.requestCloner(attemptInput.Request)
// Record the metadata for the for attempt being started.
attemptCtx := setRetryMetadata(ctx, retryMetadata{
AttemptNum: attemptNum,
AttemptTime: sdk.NowTime().UTC(),
MaxAttempts: maxAttempts,
AttemptClockSkew: attemptClockSkew,
})
var attemptResult AttemptResult
out, attemptResult, releaseRetryToken, err = r.handleAttempt(attemptCtx, attemptInput, releaseRetryToken, next)
attemptClockSkew, _ = awsmiddle.GetAttemptSkew(attemptResult.ResponseMetadata)
// AttempResult Retried states that the attempt was not successful, and
// should be retried.
shouldRetry := attemptResult.Retried
// Add attempt metadata to list of all attempt metadata
attemptResults.Results = append(attemptResults.Results, attemptResult)
if !shouldRetry {
// Ensure the last response's metadata is used as the bases for result
// metadata returned by the stack. The Slice of attempt results
// will be added to this cloned metadata.
metadata = attemptResult.ResponseMetadata.Clone()
break
}
}
addAttemptResults(&metadata, attemptResults)
return out, metadata, err
}
// handleAttempt handles an individual request attempt.
func (r *Attempt) handleAttempt(
ctx context.Context, in smithymiddle.FinalizeInput, releaseRetryToken func(error) error, next smithymiddle.FinalizeHandler,
) (
out smithymiddle.FinalizeOutput, attemptResult AttemptResult, _ func(error) error, err error,
) {
defer func() {
attemptResult.Err = err
}()
// Short circuit if this attempt never can succeed because the context is
// canceled. This reduces the chance of token pools being modified for
// attempts that will not be made
select {
case <-ctx.Done():
return out, attemptResult, nopRelease, ctx.Err()
default:
}
//------------------------------
// Get Attempt Token
//------------------------------
releaseAttemptToken, err := r.retryer.GetAttemptToken(ctx)
if err != nil {
return out, attemptResult, nopRelease, fmt.Errorf(
"failed to get retry Send token, %w", err)
}
//------------------------------
// Send Attempt
//------------------------------
logger := smithymiddle.GetLogger(ctx)
service, operation := awsmiddle.GetServiceID(ctx), awsmiddle.GetOperationName(ctx)
retryMetadata, _ := getRetryMetadata(ctx)
attemptNum := retryMetadata.AttemptNum
maxAttempts := retryMetadata.MaxAttempts
// Following attempts must ensure the request payload stream starts in a
// rewound state.
if attemptNum > 1 {
if rewindable, ok := in.Request.(interface{ RewindStream() error }); ok {
if rewindErr := rewindable.RewindStream(); rewindErr != nil {
return out, attemptResult, nopRelease, fmt.Errorf(
"failed to rewind transport stream for retry, %w", rewindErr)
}
}
r.logf(logger, logging.Debug, "retrying request %s/%s, attempt %d",
service, operation, attemptNum)
}
var metadata smithymiddle.Metadata
out, metadata, err = next.HandleFinalize(ctx, in)
attemptResult.ResponseMetadata = metadata
//------------------------------
// Bookkeeping
//------------------------------
// Release the retry token based on the state of the attempt's error (if any).
if releaseError := releaseRetryToken(err); releaseError != nil && err != nil {
return out, attemptResult, nopRelease, fmt.Errorf(
"failed to release retry token after request error, %w", err)
}
// Release the attempt token based on the state of the attempt's error (if any).
if releaseError := releaseAttemptToken(err); releaseError != nil && err != nil {
return out, attemptResult, nopRelease, fmt.Errorf(
"failed to release initial token after request error, %w", err)
}
// If there was no error making the attempt, nothing further to do. There
// will be nothing to retry.
if err == nil {
return out, attemptResult, nopRelease, err
}
//------------------------------
// Is Retryable and Should Retry
//------------------------------
// If the attempt failed with an unretryable error, nothing further to do
// but return, and inform the caller about the terminal failure.
retryable := r.retryer.IsErrorRetryable(err)
if !retryable {
r.logf(logger, logging.Debug, "request failed with unretryable error %v", err)
return out, attemptResult, nopRelease, err
}
// set retryable to true
attemptResult.Retryable = true
// Once the maximum number of attempts have been exhausted there is nothing
// further to do other than inform the caller about the terminal failure.
if maxAttempts > 0 && attemptNum >= maxAttempts {
r.logf(logger, logging.Debug, "max retry attempts exhausted, max %d", maxAttempts)
err = &MaxAttemptsError{
Attempt: attemptNum,
Err: err,
}
return out, attemptResult, nopRelease, err
}
//------------------------------
// Get Retry (aka Retry Quota) Token
//------------------------------
// Get a retry token that will be released after the
releaseRetryToken, retryTokenErr := r.retryer.GetRetryToken(ctx, err)
if retryTokenErr != nil {
return out, attemptResult, nopRelease, retryTokenErr
}
//------------------------------
// Retry Delay and Sleep
//------------------------------
// Get the retry delay before another attempt can be made, and sleep for
// that time. Potentially early exist if the sleep is canceled via the
// context.
retryDelay, reqErr := r.retryer.RetryDelay(attemptNum, err)
if reqErr != nil {
return out, attemptResult, releaseRetryToken, reqErr
}
if reqErr = sdk.SleepWithContext(ctx, retryDelay); reqErr != nil {
err = &aws.RequestCanceledError{Err: reqErr}
return out, attemptResult, releaseRetryToken, err
}
// The request should be re-attempted.
attemptResult.Retried = true
return out, attemptResult, releaseRetryToken, err
}
// MetricsHeader attaches SDK request metric header for retries to the transport
type MetricsHeader struct{}
// ID returns the middleware identifier
func (r *MetricsHeader) ID() string {
return "RetryMetricsHeader"
}
// HandleFinalize attaches the SDK request metric header to the transport layer
func (r MetricsHeader) HandleFinalize(ctx context.Context, in smithymiddle.FinalizeInput, next smithymiddle.FinalizeHandler) (
out smithymiddle.FinalizeOutput, metadata smithymiddle.Metadata, err error,
) {
retryMetadata, _ := getRetryMetadata(ctx)
const retryMetricHeader = "Amz-Sdk-Request"
var parts []string
parts = append(parts, "attempt="+strconv.Itoa(retryMetadata.AttemptNum))
if retryMetadata.MaxAttempts != 0 {
parts = append(parts, "max="+strconv.Itoa(retryMetadata.MaxAttempts))
}
var ttl time.Time
if deadline, ok := ctx.Deadline(); ok {
ttl = deadline
}
// Only append the TTL if it can be determined.
if !ttl.IsZero() && retryMetadata.AttemptClockSkew > 0 {
const unixTimeFormat = "20060102T150405Z"
ttl = ttl.Add(retryMetadata.AttemptClockSkew)
parts = append(parts, "ttl="+ttl.Format(unixTimeFormat))
}
switch req := in.Request.(type) {
case *http.Request:
req.Header[retryMetricHeader] = append(req.Header[retryMetricHeader][:0], strings.Join(parts, "; "))
default:
return out, metadata, fmt.Errorf("unknown transport type %T", req)
}
return next.HandleFinalize(ctx, in)
}
type retryMetadataKey struct{}
// getRetryMetadata retrieves retryMetadata from the context and a bool
// indicating if it was set.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func getRetryMetadata(ctx context.Context) (metadata retryMetadata, ok bool) {
metadata, ok = middleware.GetStackValue(ctx, retryMetadataKey{}).(retryMetadata)
return metadata, ok
}
// setRetryMetadata sets the retryMetadata on the context.
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func setRetryMetadata(ctx context.Context, metadata retryMetadata) context.Context {
return middleware.WithStackValue(ctx, retryMetadataKey{}, metadata)
}
// AddRetryMiddlewaresOptions is the set of options that can be passed to
// AddRetryMiddlewares for configuring retry associated middleware.
type AddRetryMiddlewaresOptions struct {
Retryer aws.Retryer
// Enable the logging of retry attempts performed by the SDK. This will
// include logging retry attempts, unretryable errors, and when max
// attempts are reached.
LogRetryAttempts bool
}
// AddRetryMiddlewares adds retry middleware to operation middleware stack
func AddRetryMiddlewares(stack *smithymiddle.Stack, options AddRetryMiddlewaresOptions) error {
attempt := NewAttemptMiddleware(options.Retryer, http.RequestCloner, func(middleware *Attempt) {
middleware.LogAttempts = options.LogRetryAttempts
})
if err := stack.Finalize.Add(attempt, smithymiddle.After); err != nil {
return err
}
if err := stack.Finalize.Add(&MetricsHeader{}, smithymiddle.After); err != nil {
return err
}
return nil
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/retry/retry.go generated vendored Normal file
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package retry
import (
"context"
"time"
"github.com/aws/aws-sdk-go-v2/aws"
)
// AddWithErrorCodes returns a Retryer with additional error codes considered
// for determining if the error should be retried.
func AddWithErrorCodes(r aws.Retryer, codes ...string) aws.Retryer {
retryable := &RetryableErrorCode{
Codes: map[string]struct{}{},
}
for _, c := range codes {
retryable.Codes[c] = struct{}{}
}
return &withIsErrorRetryable{
RetryerV2: wrapAsRetryerV2(r),
Retryable: retryable,
}
}
type withIsErrorRetryable struct {
aws.RetryerV2
Retryable IsErrorRetryable
}
func (r *withIsErrorRetryable) IsErrorRetryable(err error) bool {
if v := r.Retryable.IsErrorRetryable(err); v != aws.UnknownTernary {
return v.Bool()
}
return r.RetryerV2.IsErrorRetryable(err)
}
// AddWithMaxAttempts returns a Retryer with MaxAttempts set to the value
// specified.
func AddWithMaxAttempts(r aws.Retryer, max int) aws.Retryer {
return &withMaxAttempts{
RetryerV2: wrapAsRetryerV2(r),
Max: max,
}
}
type withMaxAttempts struct {
aws.RetryerV2
Max int
}
func (w *withMaxAttempts) MaxAttempts() int {
return w.Max
}
// AddWithMaxBackoffDelay returns a retryer wrapping the passed in retryer
// overriding the RetryDelay behavior for a alternate minimum initial backoff
// delay.
func AddWithMaxBackoffDelay(r aws.Retryer, delay time.Duration) aws.Retryer {
return &withMaxBackoffDelay{
RetryerV2: wrapAsRetryerV2(r),
backoff: NewExponentialJitterBackoff(delay),
}
}
type withMaxBackoffDelay struct {
aws.RetryerV2
backoff *ExponentialJitterBackoff
}
func (r *withMaxBackoffDelay) RetryDelay(attempt int, err error) (time.Duration, error) {
return r.backoff.BackoffDelay(attempt, err)
}
type wrappedAsRetryerV2 struct {
aws.Retryer
}
func wrapAsRetryerV2(r aws.Retryer) aws.RetryerV2 {
v, ok := r.(aws.RetryerV2)
if !ok {
v = wrappedAsRetryerV2{Retryer: r}
}
return v
}
func (w wrappedAsRetryerV2) GetAttemptToken(context.Context) (func(error) error, error) {
return w.Retryer.GetInitialToken(), nil
}

186
vendor/github.com/aws/aws-sdk-go-v2/aws/retry/retryable_error.go generated vendored Normal file
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package retry
import (
"errors"
"net"
"net/url"
"strings"
"github.com/aws/aws-sdk-go-v2/aws"
)
// IsErrorRetryable provides the interface of an implementation to determine if
// a error as the result of an operation is retryable.
type IsErrorRetryable interface {
IsErrorRetryable(error) aws.Ternary
}
// IsErrorRetryables is a collection of checks to determine of the error is
// retryable. Iterates through the checks and returns the state of retryable
// if any check returns something other than unknown.
type IsErrorRetryables []IsErrorRetryable
// IsErrorRetryable returns if the error is retryable if any of the checks in
// the list return a value other than unknown.
func (r IsErrorRetryables) IsErrorRetryable(err error) aws.Ternary {
for _, re := range r {
if v := re.IsErrorRetryable(err); v != aws.UnknownTernary {
return v
}
}
return aws.UnknownTernary
}
// IsErrorRetryableFunc wraps a function with the IsErrorRetryable interface.
type IsErrorRetryableFunc func(error) aws.Ternary
// IsErrorRetryable returns if the error is retryable.
func (fn IsErrorRetryableFunc) IsErrorRetryable(err error) aws.Ternary {
return fn(err)
}
// RetryableError is an IsErrorRetryable implementation which uses the
// optional interface Retryable on the error value to determine if the error is
// retryable.
type RetryableError struct{}
// IsErrorRetryable returns if the error is retryable if it satisfies the
// Retryable interface, and returns if the attempt should be retried.
func (RetryableError) IsErrorRetryable(err error) aws.Ternary {
var v interface{ RetryableError() bool }
if !errors.As(err, &v) {
return aws.UnknownTernary
}
return aws.BoolTernary(v.RetryableError())
}
// NoRetryCanceledError detects if the error was an request canceled error and
// returns if so.
type NoRetryCanceledError struct{}
// IsErrorRetryable returns the error is not retryable if the request was
// canceled.
func (NoRetryCanceledError) IsErrorRetryable(err error) aws.Ternary {
var v interface{ CanceledError() bool }
if !errors.As(err, &v) {
return aws.UnknownTernary
}
if v.CanceledError() {
return aws.FalseTernary
}
return aws.UnknownTernary
}
// RetryableConnectionError determines if the underlying error is an HTTP
// connection and returns if it should be retried.
//
// Includes errors such as connection reset, connection refused, net dial,
// temporary, and timeout errors.
type RetryableConnectionError struct{}
// IsErrorRetryable returns if the error is caused by and HTTP connection
// error, and should be retried.
func (r RetryableConnectionError) IsErrorRetryable(err error) aws.Ternary {
if err == nil {
return aws.UnknownTernary
}
var retryable bool
var conErr interface{ ConnectionError() bool }
var tempErr interface{ Temporary() bool }
var timeoutErr interface{ Timeout() bool }
var urlErr *url.Error
var netOpErr *net.OpError
switch {
case errors.As(err, &conErr) && conErr.ConnectionError():
retryable = true
case strings.Contains(err.Error(), "connection reset"):
retryable = true
case errors.As(err, &urlErr):
// Refused connections should be retried as the service may not yet be
// running on the port. Go TCP dial considers refused connections as
// not temporary.
if strings.Contains(urlErr.Error(), "connection refused") {
retryable = true
} else {
return r.IsErrorRetryable(errors.Unwrap(urlErr))
}
case errors.As(err, &netOpErr):
// Network dial, or temporary network errors are always retryable.
if strings.EqualFold(netOpErr.Op, "dial") || netOpErr.Temporary() {
retryable = true
} else {
return r.IsErrorRetryable(errors.Unwrap(netOpErr))
}
case errors.As(err, &tempErr) && tempErr.Temporary():
// Fallback to the generic temporary check, with temporary errors
// retryable.
retryable = true
case errors.As(err, &timeoutErr) && timeoutErr.Timeout():
// Fallback to the generic timeout check, with timeout errors
// retryable.
retryable = true
default:
return aws.UnknownTernary
}
return aws.BoolTernary(retryable)
}
// RetryableHTTPStatusCode provides a IsErrorRetryable based on HTTP status
// codes.
type RetryableHTTPStatusCode struct {
Codes map[int]struct{}
}
// IsErrorRetryable return if the passed in error is retryable based on the
// HTTP status code.
func (r RetryableHTTPStatusCode) IsErrorRetryable(err error) aws.Ternary {
var v interface{ HTTPStatusCode() int }
if !errors.As(err, &v) {
return aws.UnknownTernary
}
_, ok := r.Codes[v.HTTPStatusCode()]
if !ok {
return aws.UnknownTernary
}
return aws.TrueTernary
}
// RetryableErrorCode determines if an attempt should be retried based on the
// API error code.
type RetryableErrorCode struct {
Codes map[string]struct{}
}
// IsErrorRetryable return if the error is retryable based on the error codes.
// Returns unknown if the error doesn't have a code or it is unknown.
func (r RetryableErrorCode) IsErrorRetryable(err error) aws.Ternary {
var v interface{ ErrorCode() string }
if !errors.As(err, &v) {
return aws.UnknownTernary
}
_, ok := r.Codes[v.ErrorCode()]
if !ok {
return aws.UnknownTernary
}
return aws.TrueTernary
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/retry/standard.go generated vendored Normal file
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package retry
import (
"context"
"fmt"
"time"
"github.com/aws/aws-sdk-go-v2/aws/ratelimit"
)
// BackoffDelayer provides the interface for determining the delay to before
// another request attempt, that previously failed.
type BackoffDelayer interface {
BackoffDelay(attempt int, err error) (time.Duration, error)
}
// BackoffDelayerFunc provides a wrapper around a function to determine the
// backoff delay of an attempt retry.
type BackoffDelayerFunc func(int, error) (time.Duration, error)
// BackoffDelay returns the delay before attempt to retry a request.
func (fn BackoffDelayerFunc) BackoffDelay(attempt int, err error) (time.Duration, error) {
return fn(attempt, err)
}
const (
// DefaultMaxAttempts is the maximum of attempts for an API request
DefaultMaxAttempts int = 3
// DefaultMaxBackoff is the maximum back off delay between attempts
DefaultMaxBackoff time.Duration = 20 * time.Second
)
// Default retry token quota values.
const (
DefaultRetryRateTokens uint = 500
DefaultRetryCost uint = 5
DefaultRetryTimeoutCost uint = 10
DefaultNoRetryIncrement uint = 1
)
// DefaultRetryableHTTPStatusCodes is the default set of HTTP status codes the SDK
// should consider as retryable errors.
var DefaultRetryableHTTPStatusCodes = map[int]struct{}{
500: {},
502: {},
503: {},
504: {},
}
// DefaultRetryableErrorCodes provides the set of API error codes that should
// be retried.
var DefaultRetryableErrorCodes = map[string]struct{}{
"RequestTimeout": {},
"RequestTimeoutException": {},
}
// DefaultThrottleErrorCodes provides the set of API error codes that are
// considered throttle errors.
var DefaultThrottleErrorCodes = map[string]struct{}{
"Throttling": {},
"ThrottlingException": {},
"ThrottledException": {},
"RequestThrottledException": {},
"TooManyRequestsException": {},
"ProvisionedThroughputExceededException": {},
"TransactionInProgressException": {},
"RequestLimitExceeded": {},
"BandwidthLimitExceeded": {},
"LimitExceededException": {},
"RequestThrottled": {},
"SlowDown": {},
"PriorRequestNotComplete": {},
"EC2ThrottledException": {},
}
// DefaultRetryables provides the set of retryable checks that are used by
// default.
var DefaultRetryables = []IsErrorRetryable{
NoRetryCanceledError{},
RetryableError{},
RetryableConnectionError{},
RetryableHTTPStatusCode{
Codes: DefaultRetryableHTTPStatusCodes,
},
RetryableErrorCode{
Codes: DefaultRetryableErrorCodes,
},
RetryableErrorCode{
Codes: DefaultThrottleErrorCodes,
},
}
// DefaultTimeouts provides the set of timeout checks that are used by default.
var DefaultTimeouts = []IsErrorTimeout{
TimeouterError{},
}
// StandardOptions provides the functional options for configuring the standard
// retryable, and delay behavior.
type StandardOptions struct {
// Maximum number of attempts that should be made.
MaxAttempts int
// MaxBackoff duration between retried attempts.
MaxBackoff time.Duration
// Provides the backoff strategy the retryer will use to determine the
// delay between retry attempts.
Backoff BackoffDelayer
// Set of strategies to determine if the attempt should be retried based on
// the error response received.
//
// It is safe to append to this list in NewStandard's functional options.
Retryables []IsErrorRetryable
// Set of strategies to determine if the attempt failed due to a timeout
// error.
//
// It is safe to append to this list in NewStandard's functional options.
Timeouts []IsErrorTimeout
// Provides the rate limiting strategy for rate limiting attempt retries
// across all attempts the retryer is being used with.
RateLimiter RateLimiter
// The cost to deduct from the RateLimiter's token bucket per retry.
RetryCost uint
// The cost to deduct from the RateLimiter's token bucket per retry caused
// by timeout error.
RetryTimeoutCost uint
// The cost to payback to the RateLimiter's token bucket for successful
// attempts.
NoRetryIncrement uint
}
// RateLimiter provides the interface for limiting the rate of attempt retries
// allowed by the retryer.
type RateLimiter interface {
GetToken(ctx context.Context, cost uint) (releaseToken func() error, err error)
AddTokens(uint) error
}
// Standard is the standard retry pattern for the SDK. It uses a set of
// retryable checks to determine of the failed attempt should be retried, and
// what retry delay should be used.
type Standard struct {
options StandardOptions
timeout IsErrorTimeout
retryable IsErrorRetryable
backoff BackoffDelayer
}
// NewStandard initializes a standard retry behavior with defaults that can be
// overridden via functional options.
func NewStandard(fnOpts ...func(*StandardOptions)) *Standard {
o := StandardOptions{
MaxAttempts: DefaultMaxAttempts,
MaxBackoff: DefaultMaxBackoff,
Retryables: append([]IsErrorRetryable{}, DefaultRetryables...),
Timeouts: append([]IsErrorTimeout{}, DefaultTimeouts...),
RateLimiter: ratelimit.NewTokenRateLimit(DefaultRetryRateTokens),
RetryCost: DefaultRetryCost,
RetryTimeoutCost: DefaultRetryTimeoutCost,
NoRetryIncrement: DefaultNoRetryIncrement,
}
for _, fn := range fnOpts {
fn(&o)
}
if o.MaxAttempts <= 0 {
o.MaxAttempts = DefaultMaxAttempts
}
backoff := o.Backoff
if backoff == nil {
backoff = NewExponentialJitterBackoff(o.MaxBackoff)
}
return &Standard{
options: o,
backoff: backoff,
retryable: IsErrorRetryables(o.Retryables),
timeout: IsErrorTimeouts(o.Timeouts),
}
}
// MaxAttempts returns the maximum number of attempts that can be made for a
// request before failing.
func (s *Standard) MaxAttempts() int {
return s.options.MaxAttempts
}
// IsErrorRetryable returns if the error is can be retried or not. Should not
// consider the number of attempts made.
func (s *Standard) IsErrorRetryable(err error) bool {
return s.retryable.IsErrorRetryable(err).Bool()
}
// RetryDelay returns the delay to use before another request attempt is made.
func (s *Standard) RetryDelay(attempt int, err error) (time.Duration, error) {
return s.backoff.BackoffDelay(attempt, err)
}
// GetAttemptToken returns the token to be released after then attempt completes.
// The release token will add NoRetryIncrement to the RateLimiter token pool if
// the attempt was successful. If the attempt failed, nothing will be done.
func (s *Standard) GetAttemptToken(context.Context) (func(error) error, error) {
return s.GetInitialToken(), nil
}
// GetInitialToken returns a token for adding the NoRetryIncrement to the
// RateLimiter token if the attempt completed successfully without error.
//
// InitialToken applies to result of the each attempt, including the first.
// Whereas the RetryToken applies to the result of subsequent attempts.
//
// Deprecated: use GetAttemptToken instead.
func (s *Standard) GetInitialToken() func(error) error {
return releaseToken(s.noRetryIncrement).release
}
func (s *Standard) noRetryIncrement() error {
return s.options.RateLimiter.AddTokens(s.options.NoRetryIncrement)
}
// GetRetryToken attempts to deduct the retry cost from the retry token pool.
// Returning the token release function, or error.
func (s *Standard) GetRetryToken(ctx context.Context, opErr error) (func(error) error, error) {
cost := s.options.RetryCost
if s.timeout.IsErrorTimeout(opErr).Bool() {
cost = s.options.RetryTimeoutCost
}
fn, err := s.options.RateLimiter.GetToken(ctx, cost)
if err != nil {
return nil, fmt.Errorf("failed to get rate limit token, %w", err)
}
return releaseToken(fn).release, nil
}
func nopRelease(error) error { return nil }
type releaseToken func() error
func (f releaseToken) release(err error) error {
if err != nil {
return nil
}
return f()
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/retry/throttle_error.go generated vendored Normal file
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package retry
import (
"errors"
"github.com/aws/aws-sdk-go-v2/aws"
)
// IsErrorThrottle provides the interface of an implementation to determine if
// a error response from an operation is a throttling error.
type IsErrorThrottle interface {
IsErrorThrottle(error) aws.Ternary
}
// IsErrorThrottles is a collection of checks to determine of the error a
// throttle error. Iterates through the checks and returns the state of
// throttle if any check returns something other than unknown.
type IsErrorThrottles []IsErrorThrottle
// IsErrorThrottle returns if the error is a throttle error if any of the
// checks in the list return a value other than unknown.
func (r IsErrorThrottles) IsErrorThrottle(err error) aws.Ternary {
for _, re := range r {
if v := re.IsErrorThrottle(err); v != aws.UnknownTernary {
return v
}
}
return aws.UnknownTernary
}
// IsErrorThrottleFunc wraps a function with the IsErrorThrottle interface.
type IsErrorThrottleFunc func(error) aws.Ternary
// IsErrorThrottle returns if the error is a throttle error.
func (fn IsErrorThrottleFunc) IsErrorThrottle(err error) aws.Ternary {
return fn(err)
}
// ThrottleErrorCode determines if an attempt should be retried based on the
// API error code.
type ThrottleErrorCode struct {
Codes map[string]struct{}
}
// IsErrorThrottle return if the error is a throttle error based on the error
// codes. Returns unknown if the error doesn't have a code or it is unknown.
func (r ThrottleErrorCode) IsErrorThrottle(err error) aws.Ternary {
var v interface{ ErrorCode() string }
if !errors.As(err, &v) {
return aws.UnknownTernary
}
_, ok := r.Codes[v.ErrorCode()]
if !ok {
return aws.UnknownTernary
}
return aws.TrueTernary
}

52
vendor/github.com/aws/aws-sdk-go-v2/aws/retry/timeout_error.go generated vendored Normal file
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package retry
import (
"errors"
"github.com/aws/aws-sdk-go-v2/aws"
)
// IsErrorTimeout provides the interface of an implementation to determine if
// a error matches.
type IsErrorTimeout interface {
IsErrorTimeout(err error) aws.Ternary
}
// IsErrorTimeouts is a collection of checks to determine of the error is
// retryable. Iterates through the checks and returns the state of retryable
// if any check returns something other than unknown.
type IsErrorTimeouts []IsErrorTimeout
// IsErrorTimeout returns if the error is retryable if any of the checks in
// the list return a value other than unknown.
func (ts IsErrorTimeouts) IsErrorTimeout(err error) aws.Ternary {
for _, t := range ts {
if v := t.IsErrorTimeout(err); v != aws.UnknownTernary {
return v
}
}
return aws.UnknownTernary
}
// IsErrorTimeoutFunc wraps a function with the IsErrorTimeout interface.
type IsErrorTimeoutFunc func(error) aws.Ternary
// IsErrorTimeout returns if the error is retryable.
func (fn IsErrorTimeoutFunc) IsErrorTimeout(err error) aws.Ternary {
return fn(err)
}
// TimeouterError provides the IsErrorTimeout implementation for determining if
// an error is a timeout based on type with the Timeout method.
type TimeouterError struct{}
// IsErrorTimeout returns if the error is a timeout error.
func (t TimeouterError) IsErrorTimeout(err error) aws.Ternary {
var v interface{ Timeout() bool }
if !errors.As(err, &v) {
return aws.UnknownTernary
}
return aws.BoolTernary(v.Timeout())
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/retryer.go generated vendored Normal file
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package aws
import (
"context"
"fmt"
"time"
)
// RetryMode provides the mode the API client will use to create a retryer
// based on.
type RetryMode string
const (
// RetryModeStandard model provides rate limited retry attempts with
// exponential backoff delay.
RetryModeStandard RetryMode = "standard"
// RetryModeAdaptive model provides attempt send rate limiting on throttle
// responses in addition to standard mode's retry rate limiting.
//
// Adaptive retry mode is experimental and is subject to change in the
// future.
RetryModeAdaptive RetryMode = "adaptive"
)
// ParseRetryMode attempts to parse a RetryMode from the given string.
// Returning error if the value is not a known RetryMode.
func ParseRetryMode(v string) (mode RetryMode, err error) {
switch v {
case "standard":
return RetryModeStandard, nil
case "adaptive":
return RetryModeAdaptive, nil
default:
return mode, fmt.Errorf("unknown RetryMode, %v", v)
}
}
func (m RetryMode) String() string { return string(m) }
// Retryer is an interface to determine if a given error from a
// attempt should be retried, and if so what backoff delay to apply. The
// default implementation used by most services is the retry package's Standard
// type. Which contains basic retry logic using exponential backoff.
type Retryer interface {
// IsErrorRetryable returns if the failed attempt is retryable. This check
// should determine if the error can be retried, or if the error is
// terminal.
IsErrorRetryable(error) bool
// MaxAttempts returns the maximum number of attempts that can be made for
// a attempt before failing. A value of 0 implies that the attempt should
// be retried until it succeeds if the errors are retryable.
MaxAttempts() int
// RetryDelay returns the delay that should be used before retrying the
// attempt. Will return error if the if the delay could not be determined.
RetryDelay(attempt int, opErr error) (time.Duration, error)
// GetRetryToken attempts to deduct the retry cost from the retry token pool.
// Returning the token release function, or error.
GetRetryToken(ctx context.Context, opErr error) (releaseToken func(error) error, err error)
// GetInitialToken returns the initial attempt token that can increment the
// retry token pool if the attempt is successful.
GetInitialToken() (releaseToken func(error) error)
}
// RetryerV2 is an interface to determine if a given error from a attempt
// should be retried, and if so what backoff delay to apply. The default
// implementation used by most services is the retry package's Standard type.
// Which contains basic retry logic using exponential backoff.
//
// RetryerV2 replaces the Retryer interface, deprecating the GetInitialToken
// method in favor of GetAttemptToken which takes a context, and can return an error.
//
// The SDK's retry package's Attempt middleware, and utilities will always
// wrap a Retryer as a RetryerV2. Delegating to GetInitialToken, only if
// GetAttemptToken is not implemented.
type RetryerV2 interface {
Retryer
// GetInitialToken returns the initial attempt token that can increment the
// retry token pool if the attempt is successful.
//
// Deprecated: This method does not provide a way to block using Context,
// nor can it return an error. Use RetryerV2, and GetAttemptToken instead.
GetInitialToken() (releaseToken func(error) error)
// GetAttemptToken returns the send token that can be used to rate limit
// attempt calls. Will be used by the SDK's retry package's Attempt
// middleware to get a send token prior to calling the temp and releasing
// the send token after the attempt has been made.
GetAttemptToken(context.Context) (func(error) error, error)
}
// NopRetryer provides a RequestRetryDecider implementation that will flag
// all attempt errors as not retryable, with a max attempts of 1.
type NopRetryer struct{}
// IsErrorRetryable returns false for all error values.
func (NopRetryer) IsErrorRetryable(error) bool { return false }
// MaxAttempts always returns 1 for the original attempt.
func (NopRetryer) MaxAttempts() int { return 1 }
// RetryDelay is not valid for the NopRetryer. Will always return error.
func (NopRetryer) RetryDelay(int, error) (time.Duration, error) {
return 0, fmt.Errorf("not retrying any attempt errors")
}
// GetRetryToken returns a stub function that does nothing.
func (NopRetryer) GetRetryToken(context.Context, error) (func(error) error, error) {
return nopReleaseToken, nil
}
// GetInitialToken returns a stub function that does nothing.
func (NopRetryer) GetInitialToken() func(error) error {
return nopReleaseToken
}
// GetAttemptToken returns a stub function that does nothing.
func (NopRetryer) GetAttemptToken(context.Context) (func(error) error, error) {
return nopReleaseToken, nil
}
func nopReleaseToken(error) error { return nil }

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vendor/github.com/aws/aws-sdk-go-v2/aws/runtime.go generated vendored Normal file
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package aws
// ExecutionEnvironmentID is the AWS execution environment runtime identifier.
type ExecutionEnvironmentID string
// RuntimeEnvironment is a collection of values that are determined at runtime
// based on the environment that the SDK is executing in. Some of these values
// may or may not be present based on the executing environment and certain SDK
// configuration properties that drive whether these values are populated..
type RuntimeEnvironment struct {
EnvironmentIdentifier ExecutionEnvironmentID
Region string
EC2InstanceMetadataRegion string
}

115
vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/cache.go generated vendored Normal file
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package v4
import (
"strings"
"sync"
"time"
"github.com/aws/aws-sdk-go-v2/aws"
)
func lookupKey(service, region string) string {
var s strings.Builder
s.Grow(len(region) + len(service) + 3)
s.WriteString(region)
s.WriteRune('/')
s.WriteString(service)
return s.String()
}
type derivedKey struct {
AccessKey string
Date time.Time
Credential []byte
}
type derivedKeyCache struct {
values map[string]derivedKey
mutex sync.RWMutex
}
func newDerivedKeyCache() derivedKeyCache {
return derivedKeyCache{
values: make(map[string]derivedKey),
}
}
func (s *derivedKeyCache) Get(credentials aws.Credentials, service, region string, signingTime SigningTime) []byte {
key := lookupKey(service, region)
s.mutex.RLock()
if cred, ok := s.get(key, credentials, signingTime.Time); ok {
s.mutex.RUnlock()
return cred
}
s.mutex.RUnlock()
s.mutex.Lock()
if cred, ok := s.get(key, credentials, signingTime.Time); ok {
s.mutex.Unlock()
return cred
}
cred := deriveKey(credentials.SecretAccessKey, service, region, signingTime)
entry := derivedKey{
AccessKey: credentials.AccessKeyID,
Date: signingTime.Time,
Credential: cred,
}
s.values[key] = entry
s.mutex.Unlock()
return cred
}
func (s *derivedKeyCache) get(key string, credentials aws.Credentials, signingTime time.Time) ([]byte, bool) {
cacheEntry, ok := s.retrieveFromCache(key)
if ok && cacheEntry.AccessKey == credentials.AccessKeyID && isSameDay(signingTime, cacheEntry.Date) {
return cacheEntry.Credential, true
}
return nil, false
}
func (s *derivedKeyCache) retrieveFromCache(key string) (derivedKey, bool) {
if v, ok := s.values[key]; ok {
return v, true
}
return derivedKey{}, false
}
// SigningKeyDeriver derives a signing key from a set of credentials
type SigningKeyDeriver struct {
cache derivedKeyCache
}
// NewSigningKeyDeriver returns a new SigningKeyDeriver
func NewSigningKeyDeriver() *SigningKeyDeriver {
return &SigningKeyDeriver{
cache: newDerivedKeyCache(),
}
}
// DeriveKey returns a derived signing key from the given credentials to be used with SigV4 signing.
func (k *SigningKeyDeriver) DeriveKey(credential aws.Credentials, service, region string, signingTime SigningTime) []byte {
return k.cache.Get(credential, service, region, signingTime)
}
func deriveKey(secret, service, region string, t SigningTime) []byte {
hmacDate := HMACSHA256([]byte("AWS4"+secret), []byte(t.ShortTimeFormat()))
hmacRegion := HMACSHA256(hmacDate, []byte(region))
hmacService := HMACSHA256(hmacRegion, []byte(service))
return HMACSHA256(hmacService, []byte("aws4_request"))
}
func isSameDay(x, y time.Time) bool {
xYear, xMonth, xDay := x.Date()
yYear, yMonth, yDay := y.Date()
if xYear != yYear {
return false
}
if xMonth != yMonth {
return false
}
return xDay == yDay
}

40
vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/const.go generated vendored Normal file
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package v4
// Signature Version 4 (SigV4) Constants
const (
// EmptyStringSHA256 is the hex encoded sha256 value of an empty string
EmptyStringSHA256 = `e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855`
// UnsignedPayload indicates that the request payload body is unsigned
UnsignedPayload = "UNSIGNED-PAYLOAD"
// AmzAlgorithmKey indicates the signing algorithm
AmzAlgorithmKey = "X-Amz-Algorithm"
// AmzSecurityTokenKey indicates the security token to be used with temporary credentials
AmzSecurityTokenKey = "X-Amz-Security-Token"
// AmzDateKey is the UTC timestamp for the request in the format YYYYMMDD'T'HHMMSS'Z'
AmzDateKey = "X-Amz-Date"
// AmzCredentialKey is the access key ID and credential scope
AmzCredentialKey = "X-Amz-Credential"
// AmzSignedHeadersKey is the set of headers signed for the request
AmzSignedHeadersKey = "X-Amz-SignedHeaders"
// AmzSignatureKey is the query parameter to store the SigV4 signature
AmzSignatureKey = "X-Amz-Signature"
// TimeFormat is the time format to be used in the X-Amz-Date header or query parameter
TimeFormat = "20060102T150405Z"
// ShortTimeFormat is the shorten time format used in the credential scope
ShortTimeFormat = "20060102"
// ContentSHAKey is the SHA256 of request body
ContentSHAKey = "X-Amz-Content-Sha256"
// StreamingEventsPayload indicates that the request payload body is a signed event stream.
StreamingEventsPayload = "STREAMING-AWS4-HMAC-SHA256-EVENTS"
)

82
vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/header_rules.go generated vendored Normal file
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package v4
import (
sdkstrings "github.com/aws/aws-sdk-go-v2/internal/strings"
)
// Rules houses a set of Rule needed for validation of a
// string value
type Rules []Rule
// Rule interface allows for more flexible rules and just simply
// checks whether or not a value adheres to that Rule
type Rule interface {
IsValid(value string) bool
}
// IsValid will iterate through all rules and see if any rules
// apply to the value and supports nested rules
func (r Rules) IsValid(value string) bool {
for _, rule := range r {
if rule.IsValid(value) {
return true
}
}
return false
}
// MapRule generic Rule for maps
type MapRule map[string]struct{}
// IsValid for the map Rule satisfies whether it exists in the map
func (m MapRule) IsValid(value string) bool {
_, ok := m[value]
return ok
}
// AllowList is a generic Rule for include listing
type AllowList struct {
Rule
}
// IsValid for AllowList checks if the value is within the AllowList
func (w AllowList) IsValid(value string) bool {
return w.Rule.IsValid(value)
}
// ExcludeList is a generic Rule for exclude listing
type ExcludeList struct {
Rule
}
// IsValid for AllowList checks if the value is within the AllowList
func (b ExcludeList) IsValid(value string) bool {
return !b.Rule.IsValid(value)
}
// Patterns is a list of strings to match against
type Patterns []string
// IsValid for Patterns checks each pattern and returns if a match has
// been found
func (p Patterns) IsValid(value string) bool {
for _, pattern := range p {
if sdkstrings.HasPrefixFold(value, pattern) {
return true
}
}
return false
}
// InclusiveRules rules allow for rules to depend on one another
type InclusiveRules []Rule
// IsValid will return true if all rules are true
func (r InclusiveRules) IsValid(value string) bool {
for _, rule := range r {
if !rule.IsValid(value) {
return false
}
}
return true
}

68
vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/headers.go generated vendored Normal file
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package v4
// IgnoredHeaders is a list of headers that are ignored during signing
var IgnoredHeaders = Rules{
ExcludeList{
MapRule{
"Authorization": struct{}{},
"User-Agent": struct{}{},
"X-Amzn-Trace-Id": struct{}{},
},
},
}
// RequiredSignedHeaders is a allow list for Build canonical headers.
var RequiredSignedHeaders = Rules{
AllowList{
MapRule{
"Cache-Control": struct{}{},
"Content-Disposition": struct{}{},
"Content-Encoding": struct{}{},
"Content-Language": struct{}{},
"Content-Md5": struct{}{},
"Content-Type": struct{}{},
"Expires": struct{}{},
"If-Match": struct{}{},
"If-Modified-Since": struct{}{},
"If-None-Match": struct{}{},
"If-Unmodified-Since": struct{}{},
"Range": struct{}{},
"X-Amz-Acl": struct{}{},
"X-Amz-Copy-Source": struct{}{},
"X-Amz-Copy-Source-If-Match": struct{}{},
"X-Amz-Copy-Source-If-Modified-Since": struct{}{},
"X-Amz-Copy-Source-If-None-Match": struct{}{},
"X-Amz-Copy-Source-If-Unmodified-Since": struct{}{},
"X-Amz-Copy-Source-Range": struct{}{},
"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": struct{}{},
"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": struct{}{},
"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": struct{}{},
"X-Amz-Grant-Full-control": struct{}{},
"X-Amz-Grant-Read": struct{}{},
"X-Amz-Grant-Read-Acp": struct{}{},
"X-Amz-Grant-Write": struct{}{},
"X-Amz-Grant-Write-Acp": struct{}{},
"X-Amz-Metadata-Directive": struct{}{},
"X-Amz-Mfa": struct{}{},
"X-Amz-Request-Payer": struct{}{},
"X-Amz-Server-Side-Encryption": struct{}{},
"X-Amz-Server-Side-Encryption-Aws-Kms-Key-Id": struct{}{},
"X-Amz-Server-Side-Encryption-Customer-Algorithm": struct{}{},
"X-Amz-Server-Side-Encryption-Customer-Key": struct{}{},
"X-Amz-Server-Side-Encryption-Customer-Key-Md5": struct{}{},
"X-Amz-Storage-Class": struct{}{},
"X-Amz-Website-Redirect-Location": struct{}{},
"X-Amz-Content-Sha256": struct{}{},
"X-Amz-Tagging": struct{}{},
},
},
Patterns{"X-Amz-Object-Lock-"},
Patterns{"X-Amz-Meta-"},
}
// AllowedQueryHoisting is a allowed list for Build query headers. The boolean value
// represents whether or not it is a pattern.
var AllowedQueryHoisting = InclusiveRules{
ExcludeList{RequiredSignedHeaders},
Patterns{"X-Amz-"},
}

13
vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/hmac.go generated vendored Normal file
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package v4
import (
"crypto/hmac"
"crypto/sha256"
)
// HMACSHA256 computes a HMAC-SHA256 of data given the provided key.
func HMACSHA256(key []byte, data []byte) []byte {
hash := hmac.New(sha256.New, key)
hash.Write(data)
return hash.Sum(nil)
}

75
vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/host.go generated vendored Normal file
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package v4
import (
"net/http"
"strings"
)
// SanitizeHostForHeader removes default port from host and updates request.Host
func SanitizeHostForHeader(r *http.Request) {
host := getHost(r)
port := portOnly(host)
if port != "" && isDefaultPort(r.URL.Scheme, port) {
r.Host = stripPort(host)
}
}
// Returns host from request
func getHost(r *http.Request) string {
if r.Host != "" {
return r.Host
}
return r.URL.Host
}
// Hostname returns u.Host, without any port number.
//
// If Host is an IPv6 literal with a port number, Hostname returns the
// IPv6 literal without the square brackets. IPv6 literals may include
// a zone identifier.
//
// Copied from the Go 1.8 standard library (net/url)
func stripPort(hostport string) string {
colon := strings.IndexByte(hostport, ':')
if colon == -1 {
return hostport
}
if i := strings.IndexByte(hostport, ']'); i != -1 {
return strings.TrimPrefix(hostport[:i], "[")
}
return hostport[:colon]
}
// Port returns the port part of u.Host, without the leading colon.
// If u.Host doesn't contain a port, Port returns an empty string.
//
// Copied from the Go 1.8 standard library (net/url)
func portOnly(hostport string) string {
colon := strings.IndexByte(hostport, ':')
if colon == -1 {
return ""
}
if i := strings.Index(hostport, "]:"); i != -1 {
return hostport[i+len("]:"):]
}
if strings.Contains(hostport, "]") {
return ""
}
return hostport[colon+len(":"):]
}
// Returns true if the specified URI is using the standard port
// (i.e. port 80 for HTTP URIs or 443 for HTTPS URIs)
func isDefaultPort(scheme, port string) bool {
if port == "" {
return true
}
lowerCaseScheme := strings.ToLower(scheme)
if (lowerCaseScheme == "http" && port == "80") || (lowerCaseScheme == "https" && port == "443") {
return true
}
return false
}

13
vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/scope.go generated vendored Normal file
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package v4
import "strings"
// BuildCredentialScope builds the Signature Version 4 (SigV4) signing scope
func BuildCredentialScope(signingTime SigningTime, region, service string) string {
return strings.Join([]string{
signingTime.ShortTimeFormat(),
region,
service,
"aws4_request",
}, "/")
}

36
vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/time.go generated vendored Normal file
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package v4
import "time"
// SigningTime provides a wrapper around a time.Time which provides cached values for SigV4 signing.
type SigningTime struct {
time.Time
timeFormat string
shortTimeFormat string
}
// NewSigningTime creates a new SigningTime given a time.Time
func NewSigningTime(t time.Time) SigningTime {
return SigningTime{
Time: t,
}
}
// TimeFormat provides a time formatted in the X-Amz-Date format.
func (m *SigningTime) TimeFormat() string {
return m.format(&m.timeFormat, TimeFormat)
}
// ShortTimeFormat provides a time formatted of 20060102.
func (m *SigningTime) ShortTimeFormat() string {
return m.format(&m.shortTimeFormat, ShortTimeFormat)
}
func (m *SigningTime) format(target *string, format string) string {
if len(*target) > 0 {
return *target
}
v := m.Time.Format(format)
*target = v
return v
}

64
vendor/github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4/util.go generated vendored Normal file
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package v4
import (
"net/url"
"strings"
)
const doubleSpace = " "
// StripExcessSpaces will rewrite the passed in slice's string values to not
// contain multiple side-by-side spaces.
func StripExcessSpaces(str string) string {
var j, k, l, m, spaces int
// Trim trailing spaces
for j = len(str) - 1; j >= 0 && str[j] == ' '; j-- {
}
// Trim leading spaces
for k = 0; k < j && str[k] == ' '; k++ {
}
str = str[k : j+1]
// Strip multiple spaces.
j = strings.Index(str, doubleSpace)
if j < 0 {
return str
}
buf := []byte(str)
for k, m, l = j, j, len(buf); k < l; k++ {
if buf[k] == ' ' {
if spaces == 0 {
// First space.
buf[m] = buf[k]
m++
}
spaces++
} else {
// End of multiple spaces.
spaces = 0
buf[m] = buf[k]
m++
}
}
return string(buf[:m])
}
// GetURIPath returns the escaped URI component from the provided URL
func GetURIPath(u *url.URL) string {
var uri string
if len(u.Opaque) > 0 {
uri = "/" + strings.Join(strings.Split(u.Opaque, "/")[3:], "/")
} else {
uri = u.EscapedPath()
}
if len(uri) == 0 {
uri = "/"
}
return uri
}

400
vendor/github.com/aws/aws-sdk-go-v2/aws/signer/v4/middleware.go generated vendored Normal file
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package v4
import (
"context"
"crypto/sha256"
"encoding/hex"
"fmt"
"io"
"net/http"
"strings"
"github.com/aws/aws-sdk-go-v2/aws"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
v4Internal "github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4"
"github.com/aws/aws-sdk-go-v2/internal/sdk"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
const computePayloadHashMiddlewareID = "ComputePayloadHash"
// HashComputationError indicates an error occurred while computing the signing hash
type HashComputationError struct {
Err error
}
// Error is the error message
func (e *HashComputationError) Error() string {
return fmt.Sprintf("failed to compute payload hash: %v", e.Err)
}
// Unwrap returns the underlying error if one is set
func (e *HashComputationError) Unwrap() error {
return e.Err
}
// SigningError indicates an error condition occurred while performing SigV4 signing
type SigningError struct {
Err error
}
func (e *SigningError) Error() string {
return fmt.Sprintf("failed to sign request: %v", e.Err)
}
// Unwrap returns the underlying error cause
func (e *SigningError) Unwrap() error {
return e.Err
}
// UseDynamicPayloadSigningMiddleware swaps the compute payload sha256 middleware with a resolver middleware that
// switches between unsigned and signed payload based on TLS state for request.
// This middleware should not be used for AWS APIs that do not support unsigned payload signing auth.
// By default, SDK uses this middleware for known AWS APIs that support such TLS based auth selection .
//
// Usage example -
// S3 PutObject API allows unsigned payload signing auth usage when TLS is enabled, and uses this middleware to
// dynamically switch between unsigned and signed payload based on TLS state for request.
func UseDynamicPayloadSigningMiddleware(stack *middleware.Stack) error {
_, err := stack.Build.Swap(computePayloadHashMiddlewareID, &dynamicPayloadSigningMiddleware{})
return err
}
// dynamicPayloadSigningMiddleware dynamically resolves the middleware that computes and set payload sha256 middleware.
type dynamicPayloadSigningMiddleware struct {
}
// ID returns the resolver identifier
func (m *dynamicPayloadSigningMiddleware) ID() string {
return computePayloadHashMiddlewareID
}
// HandleBuild sets a resolver that directs to the payload sha256 compute handler.
func (m *dynamicPayloadSigningMiddleware) HandleBuild(
ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler,
) (
out middleware.BuildOutput, metadata middleware.Metadata, err error,
) {
req, ok := in.Request.(*smithyhttp.Request)
if !ok {
return out, metadata, fmt.Errorf("unknown transport type %T", in.Request)
}
// if TLS is enabled, use unsigned payload when supported
if strings.EqualFold(req.URL.Scheme, "https") {
return (&unsignedPayload{}).HandleBuild(ctx, in, next)
}
// else fall back to signed payload
return (&computePayloadSHA256{}).HandleBuild(ctx, in, next)
}
// unsignedPayload sets the SigV4 request payload hash to unsigned.
//
// Will not set the Unsigned Payload magic SHA value, if a SHA has already been
// stored in the context. (e.g. application pre-computed SHA256 before making
// API call).
//
// This middleware does not check the X-Amz-Content-Sha256 header, if that
// header is serialized a middleware must translate it into the context.
type unsignedPayload struct{}
// AddUnsignedPayloadMiddleware adds unsignedPayload to the operation
// middleware stack
func AddUnsignedPayloadMiddleware(stack *middleware.Stack) error {
return stack.Build.Add(&unsignedPayload{}, middleware.After)
}
// ID returns the unsignedPayload identifier
func (m *unsignedPayload) ID() string {
return computePayloadHashMiddlewareID
}
// HandleBuild sets the payload hash to be an unsigned payload
func (m *unsignedPayload) HandleBuild(
ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler,
) (
out middleware.BuildOutput, metadata middleware.Metadata, err error,
) {
// This should not compute the content SHA256 if the value is already
// known. (e.g. application pre-computed SHA256 before making API call).
// Does not have any tight coupling to the X-Amz-Content-Sha256 header, if
// that header is provided a middleware must translate it into the context.
contentSHA := GetPayloadHash(ctx)
if len(contentSHA) == 0 {
contentSHA = v4Internal.UnsignedPayload
}
ctx = SetPayloadHash(ctx, contentSHA)
return next.HandleBuild(ctx, in)
}
// computePayloadSHA256 computes SHA256 payload hash to sign.
//
// Will not set the Unsigned Payload magic SHA value, if a SHA has already been
// stored in the context. (e.g. application pre-computed SHA256 before making
// API call).
//
// This middleware does not check the X-Amz-Content-Sha256 header, if that
// header is serialized a middleware must translate it into the context.
type computePayloadSHA256 struct{}
// AddComputePayloadSHA256Middleware adds computePayloadSHA256 to the
// operation middleware stack
func AddComputePayloadSHA256Middleware(stack *middleware.Stack) error {
return stack.Build.Add(&computePayloadSHA256{}, middleware.After)
}
// RemoveComputePayloadSHA256Middleware removes computePayloadSHA256 from the
// operation middleware stack
func RemoveComputePayloadSHA256Middleware(stack *middleware.Stack) error {
_, err := stack.Build.Remove(computePayloadHashMiddlewareID)
return err
}
// ID is the middleware name
func (m *computePayloadSHA256) ID() string {
return computePayloadHashMiddlewareID
}
// HandleBuild compute the payload hash for the request payload
func (m *computePayloadSHA256) HandleBuild(
ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler,
) (
out middleware.BuildOutput, metadata middleware.Metadata, err error,
) {
req, ok := in.Request.(*smithyhttp.Request)
if !ok {
return out, metadata, &HashComputationError{
Err: fmt.Errorf("unexpected request middleware type %T", in.Request),
}
}
// This should not compute the content SHA256 if the value is already
// known. (e.g. application pre-computed SHA256 before making API call)
// Does not have any tight coupling to the X-Amz-Content-Sha256 header, if
// that header is provided a middleware must translate it into the context.
if contentSHA := GetPayloadHash(ctx); len(contentSHA) != 0 {
return next.HandleBuild(ctx, in)
}
hash := sha256.New()
if stream := req.GetStream(); stream != nil {
_, err = io.Copy(hash, stream)
if err != nil {
return out, metadata, &HashComputationError{
Err: fmt.Errorf("failed to compute payload hash, %w", err),
}
}
if err := req.RewindStream(); err != nil {
return out, metadata, &HashComputationError{
Err: fmt.Errorf("failed to seek body to start, %w", err),
}
}
}
ctx = SetPayloadHash(ctx, hex.EncodeToString(hash.Sum(nil)))
return next.HandleBuild(ctx, in)
}
// SwapComputePayloadSHA256ForUnsignedPayloadMiddleware replaces the
// ComputePayloadSHA256 middleware with the UnsignedPayload middleware.
//
// Use this to disable computing the Payload SHA256 checksum and instead use
// UNSIGNED-PAYLOAD for the SHA256 value.
func SwapComputePayloadSHA256ForUnsignedPayloadMiddleware(stack *middleware.Stack) error {
_, err := stack.Build.Swap(computePayloadHashMiddlewareID, &unsignedPayload{})
return err
}
// contentSHA256Header sets the X-Amz-Content-Sha256 header value to
// the Payload hash stored in the context.
type contentSHA256Header struct{}
// AddContentSHA256HeaderMiddleware adds ContentSHA256Header to the
// operation middleware stack
func AddContentSHA256HeaderMiddleware(stack *middleware.Stack) error {
return stack.Build.Insert(&contentSHA256Header{}, computePayloadHashMiddlewareID, middleware.After)
}
// RemoveContentSHA256HeaderMiddleware removes contentSHA256Header middleware
// from the operation middleware stack
func RemoveContentSHA256HeaderMiddleware(stack *middleware.Stack) error {
_, err := stack.Build.Remove((*contentSHA256Header)(nil).ID())
return err
}
// ID returns the ContentSHA256HeaderMiddleware identifier
func (m *contentSHA256Header) ID() string {
return "SigV4ContentSHA256Header"
}
// HandleBuild sets the X-Amz-Content-Sha256 header value to the Payload hash
// stored in the context.
func (m *contentSHA256Header) HandleBuild(
ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler,
) (
out middleware.BuildOutput, metadata middleware.Metadata, err error,
) {
req, ok := in.Request.(*smithyhttp.Request)
if !ok {
return out, metadata, &HashComputationError{Err: fmt.Errorf("unexpected request middleware type %T", in.Request)}
}
req.Header.Set(v4Internal.ContentSHAKey, GetPayloadHash(ctx))
return next.HandleBuild(ctx, in)
}
// SignHTTPRequestMiddlewareOptions is the configuration options for the SignHTTPRequestMiddleware middleware.
type SignHTTPRequestMiddlewareOptions struct {
CredentialsProvider aws.CredentialsProvider
Signer HTTPSigner
LogSigning bool
}
// SignHTTPRequestMiddleware is a `FinalizeMiddleware` implementation for SigV4 HTTP Signing
type SignHTTPRequestMiddleware struct {
credentialsProvider aws.CredentialsProvider
signer HTTPSigner
logSigning bool
}
// NewSignHTTPRequestMiddleware constructs a SignHTTPRequestMiddleware using the given Signer for signing requests
func NewSignHTTPRequestMiddleware(options SignHTTPRequestMiddlewareOptions) *SignHTTPRequestMiddleware {
return &SignHTTPRequestMiddleware{
credentialsProvider: options.CredentialsProvider,
signer: options.Signer,
logSigning: options.LogSigning,
}
}
// ID is the SignHTTPRequestMiddleware identifier
func (s *SignHTTPRequestMiddleware) ID() string {
return "Signing"
}
// HandleFinalize will take the provided input and sign the request using the SigV4 authentication scheme
func (s *SignHTTPRequestMiddleware) HandleFinalize(ctx context.Context, in middleware.FinalizeInput, next middleware.FinalizeHandler) (
out middleware.FinalizeOutput, metadata middleware.Metadata, err error,
) {
if !haveCredentialProvider(s.credentialsProvider) {
return next.HandleFinalize(ctx, in)
}
req, ok := in.Request.(*smithyhttp.Request)
if !ok {
return out, metadata, &SigningError{Err: fmt.Errorf("unexpected request middleware type %T", in.Request)}
}
signingName, signingRegion := awsmiddleware.GetSigningName(ctx), awsmiddleware.GetSigningRegion(ctx)
payloadHash := GetPayloadHash(ctx)
if len(payloadHash) == 0 {
return out, metadata, &SigningError{Err: fmt.Errorf("computed payload hash missing from context")}
}
credentials, err := s.credentialsProvider.Retrieve(ctx)
if err != nil {
return out, metadata, &SigningError{Err: fmt.Errorf("failed to retrieve credentials: %w", err)}
}
err = s.signer.SignHTTP(ctx, credentials, req.Request, payloadHash, signingName, signingRegion, sdk.NowTime(),
func(o *SignerOptions) {
o.Logger = middleware.GetLogger(ctx)
o.LogSigning = s.logSigning
})
if err != nil {
return out, metadata, &SigningError{Err: fmt.Errorf("failed to sign http request, %w", err)}
}
ctx = awsmiddleware.SetSigningCredentials(ctx, credentials)
return next.HandleFinalize(ctx, in)
}
type streamingEventsPayload struct{}
// AddStreamingEventsPayload adds the streamingEventsPayload middleware to the stack.
func AddStreamingEventsPayload(stack *middleware.Stack) error {
return stack.Build.Add(&streamingEventsPayload{}, middleware.After)
}
func (s *streamingEventsPayload) ID() string {
return computePayloadHashMiddlewareID
}
func (s *streamingEventsPayload) HandleBuild(
ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler,
) (
out middleware.BuildOutput, metadata middleware.Metadata, err error,
) {
contentSHA := GetPayloadHash(ctx)
if len(contentSHA) == 0 {
contentSHA = v4Internal.StreamingEventsPayload
}
ctx = SetPayloadHash(ctx, contentSHA)
return next.HandleBuild(ctx, in)
}
// GetSignedRequestSignature attempts to extract the signature of the request.
// Returning an error if the request is unsigned, or unable to extract the
// signature.
func GetSignedRequestSignature(r *http.Request) ([]byte, error) {
const authHeaderSignatureElem = "Signature="
if auth := r.Header.Get(authorizationHeader); len(auth) != 0 {
ps := strings.Split(auth, ", ")
for _, p := range ps {
if idx := strings.Index(p, authHeaderSignatureElem); idx >= 0 {
sig := p[len(authHeaderSignatureElem):]
if len(sig) == 0 {
return nil, fmt.Errorf("invalid request signature authorization header")
}
return hex.DecodeString(sig)
}
}
}
if sig := r.URL.Query().Get("X-Amz-Signature"); len(sig) != 0 {
return hex.DecodeString(sig)
}
return nil, fmt.Errorf("request not signed")
}
func haveCredentialProvider(p aws.CredentialsProvider) bool {
if p == nil {
return false
}
switch p.(type) {
case aws.AnonymousCredentials,
*aws.AnonymousCredentials:
return false
}
return true
}
type payloadHashKey struct{}
// GetPayloadHash retrieves the payload hash to use for signing
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func GetPayloadHash(ctx context.Context) (v string) {
v, _ = middleware.GetStackValue(ctx, payloadHashKey{}).(string)
return v
}
// SetPayloadHash sets the payload hash to be used for signing the request
//
// Scoped to stack values. Use github.com/aws/smithy-go/middleware#ClearStackValues
// to clear all stack values.
func SetPayloadHash(ctx context.Context, hash string) context.Context {
return middleware.WithStackValue(ctx, payloadHashKey{}, hash)
}

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package v4
import (
"context"
"fmt"
"net/http"
"time"
"github.com/aws/aws-sdk-go-v2/aws"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/internal/sdk"
"github.com/aws/smithy-go/middleware"
smithyHTTP "github.com/aws/smithy-go/transport/http"
)
// HTTPPresigner is an interface to a SigV4 signer that can sign create a
// presigned URL for a HTTP requests.
type HTTPPresigner interface {
PresignHTTP(
ctx context.Context, credentials aws.Credentials, r *http.Request,
payloadHash string, service string, region string, signingTime time.Time,
optFns ...func(*SignerOptions),
) (url string, signedHeader http.Header, err error)
}
// PresignedHTTPRequest provides the URL and signed headers that are included
// in the presigned URL.
type PresignedHTTPRequest struct {
URL string
Method string
SignedHeader http.Header
}
// PresignHTTPRequestMiddlewareOptions is the options for the PresignHTTPRequestMiddleware middleware.
type PresignHTTPRequestMiddlewareOptions struct {
CredentialsProvider aws.CredentialsProvider
Presigner HTTPPresigner
LogSigning bool
}
// PresignHTTPRequestMiddleware provides the Finalize middleware for creating a
// presigned URL for an HTTP request.
//
// Will short circuit the middleware stack and not forward onto the next
// Finalize handler.
type PresignHTTPRequestMiddleware struct {
credentialsProvider aws.CredentialsProvider
presigner HTTPPresigner
logSigning bool
}
// NewPresignHTTPRequestMiddleware returns a new PresignHTTPRequestMiddleware
// initialized with the presigner.
func NewPresignHTTPRequestMiddleware(options PresignHTTPRequestMiddlewareOptions) *PresignHTTPRequestMiddleware {
return &PresignHTTPRequestMiddleware{
credentialsProvider: options.CredentialsProvider,
presigner: options.Presigner,
logSigning: options.LogSigning,
}
}
// ID provides the middleware ID.
func (*PresignHTTPRequestMiddleware) ID() string { return "PresignHTTPRequest" }
// HandleFinalize will take the provided input and create a presigned url for
// the http request using the SigV4 presign authentication scheme.
//
// Since the signed request is not a valid HTTP request
func (s *PresignHTTPRequestMiddleware) HandleFinalize(
ctx context.Context, in middleware.FinalizeInput, next middleware.FinalizeHandler,
) (
out middleware.FinalizeOutput, metadata middleware.Metadata, err error,
) {
req, ok := in.Request.(*smithyHTTP.Request)
if !ok {
return out, metadata, &SigningError{
Err: fmt.Errorf("unexpected request middleware type %T", in.Request),
}
}
httpReq := req.Build(ctx)
if !haveCredentialProvider(s.credentialsProvider) {
out.Result = &PresignedHTTPRequest{
URL: httpReq.URL.String(),
Method: httpReq.Method,
SignedHeader: http.Header{},
}
return out, metadata, nil
}
signingName := awsmiddleware.GetSigningName(ctx)
signingRegion := awsmiddleware.GetSigningRegion(ctx)
payloadHash := GetPayloadHash(ctx)
if len(payloadHash) == 0 {
return out, metadata, &SigningError{
Err: fmt.Errorf("computed payload hash missing from context"),
}
}
credentials, err := s.credentialsProvider.Retrieve(ctx)
if err != nil {
return out, metadata, &SigningError{
Err: fmt.Errorf("failed to retrieve credentials: %w", err),
}
}
u, h, err := s.presigner.PresignHTTP(ctx, credentials,
httpReq, payloadHash, signingName, signingRegion, sdk.NowTime(),
func(o *SignerOptions) {
o.Logger = middleware.GetLogger(ctx)
o.LogSigning = s.logSigning
})
if err != nil {
return out, metadata, &SigningError{
Err: fmt.Errorf("failed to sign http request, %w", err),
}
}
out.Result = &PresignedHTTPRequest{
URL: u,
Method: httpReq.Method,
SignedHeader: h,
}
return out, metadata, nil
}

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vendor/github.com/aws/aws-sdk-go-v2/aws/signer/v4/stream.go generated vendored Normal file
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package v4
import (
"context"
"crypto/sha256"
"encoding/hex"
"github.com/aws/aws-sdk-go-v2/aws"
v4Internal "github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4"
"strings"
"time"
)
// EventStreamSigner is an AWS EventStream protocol signer.
type EventStreamSigner interface {
GetSignature(ctx context.Context, headers, payload []byte, signingTime time.Time, optFns ...func(*StreamSignerOptions)) ([]byte, error)
}
// StreamSignerOptions is the configuration options for StreamSigner.
type StreamSignerOptions struct{}
// StreamSigner implements Signature Version 4 (SigV4) signing of event stream encoded payloads.
type StreamSigner struct {
options StreamSignerOptions
credentials aws.Credentials
service string
region string
prevSignature []byte
signingKeyDeriver *v4Internal.SigningKeyDeriver
}
// NewStreamSigner returns a new AWS EventStream protocol signer.
func NewStreamSigner(credentials aws.Credentials, service, region string, seedSignature []byte, optFns ...func(*StreamSignerOptions)) *StreamSigner {
o := StreamSignerOptions{}
for _, fn := range optFns {
fn(&o)
}
return &StreamSigner{
options: o,
credentials: credentials,
service: service,
region: region,
signingKeyDeriver: v4Internal.NewSigningKeyDeriver(),
prevSignature: seedSignature,
}
}
// GetSignature signs the provided header and payload bytes.
func (s *StreamSigner) GetSignature(ctx context.Context, headers, payload []byte, signingTime time.Time, optFns ...func(*StreamSignerOptions)) ([]byte, error) {
options := s.options
for _, fn := range optFns {
fn(&options)
}
prevSignature := s.prevSignature
st := v4Internal.NewSigningTime(signingTime)
sigKey := s.signingKeyDeriver.DeriveKey(s.credentials, s.service, s.region, st)
scope := v4Internal.BuildCredentialScope(st, s.region, s.service)
stringToSign := s.buildEventStreamStringToSign(headers, payload, prevSignature, scope, &st)
signature := v4Internal.HMACSHA256(sigKey, []byte(stringToSign))
s.prevSignature = signature
return signature, nil
}
func (s *StreamSigner) buildEventStreamStringToSign(headers, payload, previousSignature []byte, credentialScope string, signingTime *v4Internal.SigningTime) string {
hash := sha256.New()
return strings.Join([]string{
"AWS4-HMAC-SHA256-PAYLOAD",
signingTime.TimeFormat(),
credentialScope,
hex.EncodeToString(previousSignature),
hex.EncodeToString(makeHash(hash, headers)),
hex.EncodeToString(makeHash(hash, payload)),
}, "\n")
}

542
vendor/github.com/aws/aws-sdk-go-v2/aws/signer/v4/v4.go generated vendored Normal file
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// Package v4 implements signing for AWS V4 signer
//
// Provides request signing for request that need to be signed with
// AWS V4 Signatures.
//
// Standalone Signer
//
// Generally using the signer outside of the SDK should not require any additional
// The signer does this by taking advantage of the URL.EscapedPath method. If your request URI requires
// additional escaping you many need to use the URL.Opaque to define what the raw URI should be sent
// to the service as.
//
// The signer will first check the URL.Opaque field, and use its value if set.
// The signer does require the URL.Opaque field to be set in the form of:
//
// "//<hostname>/<path>"
//
// // e.g.
// "//example.com/some/path"
//
// The leading "//" and hostname are required or the URL.Opaque escaping will
// not work correctly.
//
// If URL.Opaque is not set the signer will fallback to the URL.EscapedPath()
// method and using the returned value.
//
// AWS v4 signature validation requires that the canonical string's URI path
// element must be the URI escaped form of the HTTP request's path.
// http://docs.aws.amazon.com/general/latest/gr/sigv4-create-canonical-request.html
//
// The Go HTTP client will perform escaping automatically on the request. Some
// of these escaping may cause signature validation errors because the HTTP
// request differs from the URI path or query that the signature was generated.
// https://golang.org/pkg/net/url/#URL.EscapedPath
//
// Because of this, it is recommended that when using the signer outside of the
// SDK that explicitly escaping the request prior to being signed is preferable,
// and will help prevent signature validation errors. This can be done by setting
// the URL.Opaque or URL.RawPath. The SDK will use URL.Opaque first and then
// call URL.EscapedPath() if Opaque is not set.
//
// Test `TestStandaloneSign` provides a complete example of using the signer
// outside of the SDK and pre-escaping the URI path.
package v4
import (
"context"
"crypto/sha256"
"encoding/hex"
"fmt"
"hash"
"net/http"
"net/textproto"
"net/url"
"sort"
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go-v2/aws"
v4Internal "github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4"
"github.com/aws/smithy-go/encoding/httpbinding"
"github.com/aws/smithy-go/logging"
)
const (
signingAlgorithm = "AWS4-HMAC-SHA256"
authorizationHeader = "Authorization"
)
// HTTPSigner is an interface to a SigV4 signer that can sign HTTP requests
type HTTPSigner interface {
SignHTTP(ctx context.Context, credentials aws.Credentials, r *http.Request, payloadHash string, service string, region string, signingTime time.Time, optFns ...func(*SignerOptions)) error
}
type keyDerivator interface {
DeriveKey(credential aws.Credentials, service, region string, signingTime v4Internal.SigningTime) []byte
}
// SignerOptions is the SigV4 Signer options.
type SignerOptions struct {
// Disables the Signer's moving HTTP header key/value pairs from the HTTP
// request header to the request's query string. This is most commonly used
// with pre-signed requests preventing headers from being added to the
// request's query string.
DisableHeaderHoisting bool
// Disables the automatic escaping of the URI path of the request for the
// siganture's canonical string's path. For services that do not need additional
// escaping then use this to disable the signer escaping the path.
//
// S3 is an example of a service that does not need additional escaping.
//
// http://docs.aws.amazon.com/general/latest/gr/sigv4-create-canonical-request.html
DisableURIPathEscaping bool
// The logger to send log messages to.
Logger logging.Logger
// Enable logging of signed requests.
// This will enable logging of the canonical request, the string to sign, and for presigning the subsequent
// presigned URL.
LogSigning bool
}
// Signer applies AWS v4 signing to given request. Use this to sign requests
// that need to be signed with AWS V4 Signatures.
type Signer struct {
options SignerOptions
keyDerivator keyDerivator
}
// NewSigner returns a new SigV4 Signer
func NewSigner(optFns ...func(signer *SignerOptions)) *Signer {
options := SignerOptions{}
for _, fn := range optFns {
fn(&options)
}
return &Signer{options: options, keyDerivator: v4Internal.NewSigningKeyDeriver()}
}
type httpSigner struct {
Request *http.Request
ServiceName string
Region string
Time v4Internal.SigningTime
Credentials aws.Credentials
KeyDerivator keyDerivator
IsPreSign bool
PayloadHash string
DisableHeaderHoisting bool
DisableURIPathEscaping bool
}
func (s *httpSigner) Build() (signedRequest, error) {
req := s.Request
query := req.URL.Query()
headers := req.Header
s.setRequiredSigningFields(headers, query)
// Sort Each Query Key's Values
for key := range query {
sort.Strings(query[key])
}
v4Internal.SanitizeHostForHeader(req)
credentialScope := s.buildCredentialScope()
credentialStr := s.Credentials.AccessKeyID + "/" + credentialScope
if s.IsPreSign {
query.Set(v4Internal.AmzCredentialKey, credentialStr)
}
unsignedHeaders := headers
if s.IsPreSign && !s.DisableHeaderHoisting {
var urlValues url.Values
urlValues, unsignedHeaders = buildQuery(v4Internal.AllowedQueryHoisting, headers)
for k := range urlValues {
query[k] = urlValues[k]
}
}
host := req.URL.Host
if len(req.Host) > 0 {
host = req.Host
}
signedHeaders, signedHeadersStr, canonicalHeaderStr := s.buildCanonicalHeaders(host, v4Internal.IgnoredHeaders, unsignedHeaders, s.Request.ContentLength)
if s.IsPreSign {
query.Set(v4Internal.AmzSignedHeadersKey, signedHeadersStr)
}
var rawQuery strings.Builder
rawQuery.WriteString(strings.Replace(query.Encode(), "+", "%20", -1))
canonicalURI := v4Internal.GetURIPath(req.URL)
if !s.DisableURIPathEscaping {
canonicalURI = httpbinding.EscapePath(canonicalURI, false)
}
canonicalString := s.buildCanonicalString(
req.Method,
canonicalURI,
rawQuery.String(),
signedHeadersStr,
canonicalHeaderStr,
)
strToSign := s.buildStringToSign(credentialScope, canonicalString)
signingSignature, err := s.buildSignature(strToSign)
if err != nil {
return signedRequest{}, err
}
if s.IsPreSign {
rawQuery.WriteString("&X-Amz-Signature=")
rawQuery.WriteString(signingSignature)
} else {
headers[authorizationHeader] = append(headers[authorizationHeader][:0], buildAuthorizationHeader(credentialStr, signedHeadersStr, signingSignature))
}
req.URL.RawQuery = rawQuery.String()
return signedRequest{
Request: req,
SignedHeaders: signedHeaders,
CanonicalString: canonicalString,
StringToSign: strToSign,
PreSigned: s.IsPreSign,
}, nil
}
func buildAuthorizationHeader(credentialStr, signedHeadersStr, signingSignature string) string {
const credential = "Credential="
const signedHeaders = "SignedHeaders="
const signature = "Signature="
const commaSpace = ", "
var parts strings.Builder
parts.Grow(len(signingAlgorithm) + 1 +
len(credential) + len(credentialStr) + 2 +
len(signedHeaders) + len(signedHeadersStr) + 2 +
len(signature) + len(signingSignature),
)
parts.WriteString(signingAlgorithm)
parts.WriteRune(' ')
parts.WriteString(credential)
parts.WriteString(credentialStr)
parts.WriteString(commaSpace)
parts.WriteString(signedHeaders)
parts.WriteString(signedHeadersStr)
parts.WriteString(commaSpace)
parts.WriteString(signature)
parts.WriteString(signingSignature)
return parts.String()
}
// SignHTTP signs AWS v4 requests with the provided payload hash, service name, region the
// request is made to, and time the request is signed at. The signTime allows
// you to specify that a request is signed for the future, and cannot be
// used until then.
//
// The payloadHash is the hex encoded SHA-256 hash of the request payload, and
// must be provided. Even if the request has no payload (aka body). If the
// request has no payload you should use the hex encoded SHA-256 of an empty
// string as the payloadHash value.
//
// "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
//
// Some services such as Amazon S3 accept alternative values for the payload
// hash, such as "UNSIGNED-PAYLOAD" for requests where the body will not be
// included in the request signature.
//
// https://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-header-based-auth.html
//
// Sign differs from Presign in that it will sign the request using HTTP
// header values. This type of signing is intended for http.Request values that
// will not be shared, or are shared in a way the header values on the request
// will not be lost.
//
// The passed in request will be modified in place.
func (s Signer) SignHTTP(ctx context.Context, credentials aws.Credentials, r *http.Request, payloadHash string, service string, region string, signingTime time.Time, optFns ...func(options *SignerOptions)) error {
options := s.options
for _, fn := range optFns {
fn(&options)
}
signer := &httpSigner{
Request: r,
PayloadHash: payloadHash,
ServiceName: service,
Region: region,
Credentials: credentials,
Time: v4Internal.NewSigningTime(signingTime.UTC()),
DisableHeaderHoisting: options.DisableHeaderHoisting,
DisableURIPathEscaping: options.DisableURIPathEscaping,
KeyDerivator: s.keyDerivator,
}
signedRequest, err := signer.Build()
if err != nil {
return err
}
logSigningInfo(ctx, options, &signedRequest, false)
return nil
}
// PresignHTTP signs AWS v4 requests with the payload hash, service name, region
// the request is made to, and time the request is signed at. The signTime
// allows you to specify that a request is signed for the future, and cannot
// be used until then.
//
// Returns the signed URL and the map of HTTP headers that were included in the
// signature or an error if signing the request failed. For presigned requests
// these headers and their values must be included on the HTTP request when it
// is made. This is helpful to know what header values need to be shared with
// the party the presigned request will be distributed to.
//
// The payloadHash is the hex encoded SHA-256 hash of the request payload, and
// must be provided. Even if the request has no payload (aka body). If the
// request has no payload you should use the hex encoded SHA-256 of an empty
// string as the payloadHash value.
//
// "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
//
// Some services such as Amazon S3 accept alternative values for the payload
// hash, such as "UNSIGNED-PAYLOAD" for requests where the body will not be
// included in the request signature.
//
// https://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-header-based-auth.html
//
// PresignHTTP differs from SignHTTP in that it will sign the request using
// query string instead of header values. This allows you to share the
// Presigned Request's URL with third parties, or distribute it throughout your
// system with minimal dependencies.
//
// PresignHTTP will not set the expires time of the presigned request
// automatically. To specify the expire duration for a request add the
// "X-Amz-Expires" query parameter on the request with the value as the
// duration in seconds the presigned URL should be considered valid for. This
// parameter is not used by all AWS services, and is most notable used by
// Amazon S3 APIs.
//
// expires := 20 * time.Minute
// query := req.URL.Query()
// query.Set("X-Amz-Expires", strconv.FormatInt(int64(expires/time.Second), 10)
// req.URL.RawQuery = query.Encode()
//
// This method does not modify the provided request.
func (s *Signer) PresignHTTP(
ctx context.Context, credentials aws.Credentials, r *http.Request,
payloadHash string, service string, region string, signingTime time.Time,
optFns ...func(*SignerOptions),
) (signedURI string, signedHeaders http.Header, err error) {
options := s.options
for _, fn := range optFns {
fn(&options)
}
signer := &httpSigner{
Request: r.Clone(r.Context()),
PayloadHash: payloadHash,
ServiceName: service,
Region: region,
Credentials: credentials,
Time: v4Internal.NewSigningTime(signingTime.UTC()),
IsPreSign: true,
DisableHeaderHoisting: options.DisableHeaderHoisting,
DisableURIPathEscaping: options.DisableURIPathEscaping,
KeyDerivator: s.keyDerivator,
}
signedRequest, err := signer.Build()
if err != nil {
return "", nil, err
}
logSigningInfo(ctx, options, &signedRequest, true)
signedHeaders = make(http.Header)
// For the signed headers we canonicalize the header keys in the returned map.
// This avoids situations where can standard library double headers like host header. For example the standard
// library will set the Host header, even if it is present in lower-case form.
for k, v := range signedRequest.SignedHeaders {
key := textproto.CanonicalMIMEHeaderKey(k)
signedHeaders[key] = append(signedHeaders[key], v...)
}
return signedRequest.Request.URL.String(), signedHeaders, nil
}
func (s *httpSigner) buildCredentialScope() string {
return v4Internal.BuildCredentialScope(s.Time, s.Region, s.ServiceName)
}
func buildQuery(r v4Internal.Rule, header http.Header) (url.Values, http.Header) {
query := url.Values{}
unsignedHeaders := http.Header{}
for k, h := range header {
if r.IsValid(k) {
query[k] = h
} else {
unsignedHeaders[k] = h
}
}
return query, unsignedHeaders
}
func (s *httpSigner) buildCanonicalHeaders(host string, rule v4Internal.Rule, header http.Header, length int64) (signed http.Header, signedHeaders, canonicalHeadersStr string) {
signed = make(http.Header)
var headers []string
const hostHeader = "host"
headers = append(headers, hostHeader)
signed[hostHeader] = append(signed[hostHeader], host)
if length > 0 {
const contentLengthHeader = "content-length"
headers = append(headers, contentLengthHeader)
signed[contentLengthHeader] = append(signed[contentLengthHeader], strconv.FormatInt(length, 10))
}
for k, v := range header {
if !rule.IsValid(k) {
continue // ignored header
}
lowerCaseKey := strings.ToLower(k)
if _, ok := signed[lowerCaseKey]; ok {
// include additional values
signed[lowerCaseKey] = append(signed[lowerCaseKey], v...)
continue
}
headers = append(headers, lowerCaseKey)
signed[lowerCaseKey] = v
}
sort.Strings(headers)
signedHeaders = strings.Join(headers, ";")
var canonicalHeaders strings.Builder
n := len(headers)
const colon = ':'
for i := 0; i < n; i++ {
if headers[i] == hostHeader {
canonicalHeaders.WriteString(hostHeader)
canonicalHeaders.WriteRune(colon)
canonicalHeaders.WriteString(v4Internal.StripExcessSpaces(host))
} else {
canonicalHeaders.WriteString(headers[i])
canonicalHeaders.WriteRune(colon)
// Trim out leading, trailing, and dedup inner spaces from signed header values.
values := signed[headers[i]]
for j, v := range values {
cleanedValue := strings.TrimSpace(v4Internal.StripExcessSpaces(v))
canonicalHeaders.WriteString(cleanedValue)
if j < len(values)-1 {
canonicalHeaders.WriteRune(',')
}
}
}
canonicalHeaders.WriteRune('\n')
}
canonicalHeadersStr = canonicalHeaders.String()
return signed, signedHeaders, canonicalHeadersStr
}
func (s *httpSigner) buildCanonicalString(method, uri, query, signedHeaders, canonicalHeaders string) string {
return strings.Join([]string{
method,
uri,
query,
canonicalHeaders,
signedHeaders,
s.PayloadHash,
}, "\n")
}
func (s *httpSigner) buildStringToSign(credentialScope, canonicalRequestString string) string {
return strings.Join([]string{
signingAlgorithm,
s.Time.TimeFormat(),
credentialScope,
hex.EncodeToString(makeHash(sha256.New(), []byte(canonicalRequestString))),
}, "\n")
}
func makeHash(hash hash.Hash, b []byte) []byte {
hash.Reset()
hash.Write(b)
return hash.Sum(nil)
}
func (s *httpSigner) buildSignature(strToSign string) (string, error) {
key := s.KeyDerivator.DeriveKey(s.Credentials, s.ServiceName, s.Region, s.Time)
return hex.EncodeToString(v4Internal.HMACSHA256(key, []byte(strToSign))), nil
}
func (s *httpSigner) setRequiredSigningFields(headers http.Header, query url.Values) {
amzDate := s.Time.TimeFormat()
if s.IsPreSign {
query.Set(v4Internal.AmzAlgorithmKey, signingAlgorithm)
if sessionToken := s.Credentials.SessionToken; len(sessionToken) > 0 {
query.Set("X-Amz-Security-Token", sessionToken)
}
query.Set(v4Internal.AmzDateKey, amzDate)
return
}
headers[v4Internal.AmzDateKey] = append(headers[v4Internal.AmzDateKey][:0], amzDate)
if len(s.Credentials.SessionToken) > 0 {
headers[v4Internal.AmzSecurityTokenKey] = append(headers[v4Internal.AmzSecurityTokenKey][:0], s.Credentials.SessionToken)
}
}
func logSigningInfo(ctx context.Context, options SignerOptions, request *signedRequest, isPresign bool) {
if !options.LogSigning {
return
}
signedURLMsg := ""
if isPresign {
signedURLMsg = fmt.Sprintf(logSignedURLMsg, request.Request.URL.String())
}
logger := logging.WithContext(ctx, options.Logger)
logger.Logf(logging.Debug, logSignInfoMsg, request.CanonicalString, request.StringToSign, signedURLMsg)
}
type signedRequest struct {
Request *http.Request
SignedHeaders http.Header
CanonicalString string
StringToSign string
PreSigned bool
}
const logSignInfoMsg = `Request Signature:
---[ CANONICAL STRING ]-----------------------------
%s
---[ STRING TO SIGN ]--------------------------------
%s%s
-----------------------------------------------------`
const logSignedURLMsg = `
---[ SIGNED URL ]------------------------------------
%s`

297
vendor/github.com/aws/aws-sdk-go-v2/aws/to_ptr.go generated vendored Normal file
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@ -0,0 +1,297 @@
// Code generated by aws/generate.go DO NOT EDIT.
package aws
import (
"github.com/aws/smithy-go/ptr"
"time"
)
// Bool returns a pointer value for the bool value passed in.
func Bool(v bool) *bool {
return ptr.Bool(v)
}
// BoolSlice returns a slice of bool pointers from the values
// passed in.
func BoolSlice(vs []bool) []*bool {
return ptr.BoolSlice(vs)
}
// BoolMap returns a map of bool pointers from the values
// passed in.
func BoolMap(vs map[string]bool) map[string]*bool {
return ptr.BoolMap(vs)
}
// Byte returns a pointer value for the byte value passed in.
func Byte(v byte) *byte {
return ptr.Byte(v)
}
// ByteSlice returns a slice of byte pointers from the values
// passed in.
func ByteSlice(vs []byte) []*byte {
return ptr.ByteSlice(vs)
}
// ByteMap returns a map of byte pointers from the values
// passed in.
func ByteMap(vs map[string]byte) map[string]*byte {
return ptr.ByteMap(vs)
}
// String returns a pointer value for the string value passed in.
func String(v string) *string {
return ptr.String(v)
}
// StringSlice returns a slice of string pointers from the values
// passed in.
func StringSlice(vs []string) []*string {
return ptr.StringSlice(vs)
}
// StringMap returns a map of string pointers from the values
// passed in.
func StringMap(vs map[string]string) map[string]*string {
return ptr.StringMap(vs)
}
// Int returns a pointer value for the int value passed in.
func Int(v int) *int {
return ptr.Int(v)
}
// IntSlice returns a slice of int pointers from the values
// passed in.
func IntSlice(vs []int) []*int {
return ptr.IntSlice(vs)
}
// IntMap returns a map of int pointers from the values
// passed in.
func IntMap(vs map[string]int) map[string]*int {
return ptr.IntMap(vs)
}
// Int8 returns a pointer value for the int8 value passed in.
func Int8(v int8) *int8 {
return ptr.Int8(v)
}
// Int8Slice returns a slice of int8 pointers from the values
// passed in.
func Int8Slice(vs []int8) []*int8 {
return ptr.Int8Slice(vs)
}
// Int8Map returns a map of int8 pointers from the values
// passed in.
func Int8Map(vs map[string]int8) map[string]*int8 {
return ptr.Int8Map(vs)
}
// Int16 returns a pointer value for the int16 value passed in.
func Int16(v int16) *int16 {
return ptr.Int16(v)
}
// Int16Slice returns a slice of int16 pointers from the values
// passed in.
func Int16Slice(vs []int16) []*int16 {
return ptr.Int16Slice(vs)
}
// Int16Map returns a map of int16 pointers from the values
// passed in.
func Int16Map(vs map[string]int16) map[string]*int16 {
return ptr.Int16Map(vs)
}
// Int32 returns a pointer value for the int32 value passed in.
func Int32(v int32) *int32 {
return ptr.Int32(v)
}
// Int32Slice returns a slice of int32 pointers from the values
// passed in.
func Int32Slice(vs []int32) []*int32 {
return ptr.Int32Slice(vs)
}
// Int32Map returns a map of int32 pointers from the values
// passed in.
func Int32Map(vs map[string]int32) map[string]*int32 {
return ptr.Int32Map(vs)
}
// Int64 returns a pointer value for the int64 value passed in.
func Int64(v int64) *int64 {
return ptr.Int64(v)
}
// Int64Slice returns a slice of int64 pointers from the values
// passed in.
func Int64Slice(vs []int64) []*int64 {
return ptr.Int64Slice(vs)
}
// Int64Map returns a map of int64 pointers from the values
// passed in.
func Int64Map(vs map[string]int64) map[string]*int64 {
return ptr.Int64Map(vs)
}
// Uint returns a pointer value for the uint value passed in.
func Uint(v uint) *uint {
return ptr.Uint(v)
}
// UintSlice returns a slice of uint pointers from the values
// passed in.
func UintSlice(vs []uint) []*uint {
return ptr.UintSlice(vs)
}
// UintMap returns a map of uint pointers from the values
// passed in.
func UintMap(vs map[string]uint) map[string]*uint {
return ptr.UintMap(vs)
}
// Uint8 returns a pointer value for the uint8 value passed in.
func Uint8(v uint8) *uint8 {
return ptr.Uint8(v)
}
// Uint8Slice returns a slice of uint8 pointers from the values
// passed in.
func Uint8Slice(vs []uint8) []*uint8 {
return ptr.Uint8Slice(vs)
}
// Uint8Map returns a map of uint8 pointers from the values
// passed in.
func Uint8Map(vs map[string]uint8) map[string]*uint8 {
return ptr.Uint8Map(vs)
}
// Uint16 returns a pointer value for the uint16 value passed in.
func Uint16(v uint16) *uint16 {
return ptr.Uint16(v)
}
// Uint16Slice returns a slice of uint16 pointers from the values
// passed in.
func Uint16Slice(vs []uint16) []*uint16 {
return ptr.Uint16Slice(vs)
}
// Uint16Map returns a map of uint16 pointers from the values
// passed in.
func Uint16Map(vs map[string]uint16) map[string]*uint16 {
return ptr.Uint16Map(vs)
}
// Uint32 returns a pointer value for the uint32 value passed in.
func Uint32(v uint32) *uint32 {
return ptr.Uint32(v)
}
// Uint32Slice returns a slice of uint32 pointers from the values
// passed in.
func Uint32Slice(vs []uint32) []*uint32 {
return ptr.Uint32Slice(vs)
}
// Uint32Map returns a map of uint32 pointers from the values
// passed in.
func Uint32Map(vs map[string]uint32) map[string]*uint32 {
return ptr.Uint32Map(vs)
}
// Uint64 returns a pointer value for the uint64 value passed in.
func Uint64(v uint64) *uint64 {
return ptr.Uint64(v)
}
// Uint64Slice returns a slice of uint64 pointers from the values
// passed in.
func Uint64Slice(vs []uint64) []*uint64 {
return ptr.Uint64Slice(vs)
}
// Uint64Map returns a map of uint64 pointers from the values
// passed in.
func Uint64Map(vs map[string]uint64) map[string]*uint64 {
return ptr.Uint64Map(vs)
}
// Float32 returns a pointer value for the float32 value passed in.
func Float32(v float32) *float32 {
return ptr.Float32(v)
}
// Float32Slice returns a slice of float32 pointers from the values
// passed in.
func Float32Slice(vs []float32) []*float32 {
return ptr.Float32Slice(vs)
}
// Float32Map returns a map of float32 pointers from the values
// passed in.
func Float32Map(vs map[string]float32) map[string]*float32 {
return ptr.Float32Map(vs)
}
// Float64 returns a pointer value for the float64 value passed in.
func Float64(v float64) *float64 {
return ptr.Float64(v)
}
// Float64Slice returns a slice of float64 pointers from the values
// passed in.
func Float64Slice(vs []float64) []*float64 {
return ptr.Float64Slice(vs)
}
// Float64Map returns a map of float64 pointers from the values
// passed in.
func Float64Map(vs map[string]float64) map[string]*float64 {
return ptr.Float64Map(vs)
}
// Time returns a pointer value for the time.Time value passed in.
func Time(v time.Time) *time.Time {
return ptr.Time(v)
}
// TimeSlice returns a slice of time.Time pointers from the values
// passed in.
func TimeSlice(vs []time.Time) []*time.Time {
return ptr.TimeSlice(vs)
}
// TimeMap returns a map of time.Time pointers from the values
// passed in.
func TimeMap(vs map[string]time.Time) map[string]*time.Time {
return ptr.TimeMap(vs)
}
// Duration returns a pointer value for the time.Duration value passed in.
func Duration(v time.Duration) *time.Duration {
return ptr.Duration(v)
}
// DurationSlice returns a slice of time.Duration pointers from the values
// passed in.
func DurationSlice(vs []time.Duration) []*time.Duration {
return ptr.DurationSlice(vs)
}
// DurationMap returns a map of time.Duration pointers from the values
// passed in.
func DurationMap(vs map[string]time.Duration) map[string]*time.Duration {
return ptr.DurationMap(vs)
}

310
vendor/github.com/aws/aws-sdk-go-v2/aws/transport/http/client.go generated vendored Normal file
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package http
import (
"crypto/tls"
"github.com/aws/aws-sdk-go-v2/aws"
"net"
"net/http"
"reflect"
"sync"
"time"
)
// Defaults for the HTTPTransportBuilder.
var (
// Default connection pool options
DefaultHTTPTransportMaxIdleConns = 100
DefaultHTTPTransportMaxIdleConnsPerHost = 10
// Default connection timeouts
DefaultHTTPTransportIdleConnTimeout = 90 * time.Second
DefaultHTTPTransportTLSHandleshakeTimeout = 10 * time.Second
DefaultHTTPTransportExpectContinueTimeout = 1 * time.Second
// Default to TLS 1.2 for all HTTPS requests.
DefaultHTTPTransportTLSMinVersion uint16 = tls.VersionTLS12
)
// Timeouts for net.Dialer's network connection.
var (
DefaultDialConnectTimeout = 30 * time.Second
DefaultDialKeepAliveTimeout = 30 * time.Second
)
// BuildableClient provides a HTTPClient implementation with options to
// create copies of the HTTPClient when additional configuration is provided.
//
// The client's methods will not share the http.Transport value between copies
// of the BuildableClient. Only exported member values of the Transport and
// optional Dialer will be copied between copies of BuildableClient.
type BuildableClient struct {
transport *http.Transport
dialer *net.Dialer
initOnce sync.Once
clientTimeout time.Duration
client *http.Client
}
// NewBuildableClient returns an initialized client for invoking HTTP
// requests.
func NewBuildableClient() *BuildableClient {
return &BuildableClient{}
}
// Do implements the HTTPClient interface's Do method to invoke a HTTP request,
// and receive the response. Uses the BuildableClient's current
// configuration to invoke the http.Request.
//
// If connection pooling is enabled (aka HTTP KeepAlive) the client will only
// share pooled connections with its own instance. Copies of the
// BuildableClient will have their own connection pools.
//
// Redirect (3xx) responses will not be followed, the HTTP response received
// will returned instead.
func (b *BuildableClient) Do(req *http.Request) (*http.Response, error) {
b.initOnce.Do(b.build)
return b.client.Do(req)
}
// Freeze returns a frozen aws.HTTPClient implementation that is no longer a BuildableClient.
// Use this to prevent the SDK from applying DefaultMode configuration values to a buildable client.
func (b *BuildableClient) Freeze() aws.HTTPClient {
cpy := b.clone()
cpy.build()
return cpy.client
}
func (b *BuildableClient) build() {
b.client = wrapWithLimitedRedirect(&http.Client{
Timeout: b.clientTimeout,
Transport: b.GetTransport(),
})
}
func (b *BuildableClient) clone() *BuildableClient {
cpy := NewBuildableClient()
cpy.transport = b.GetTransport()
cpy.dialer = b.GetDialer()
cpy.clientTimeout = b.clientTimeout
return cpy
}
// WithTransportOptions copies the BuildableClient and returns it with the
// http.Transport options applied.
//
// If a non (*http.Transport) was set as the round tripper, the round tripper
// will be replaced with a default Transport value before invoking the option
// functions.
func (b *BuildableClient) WithTransportOptions(opts ...func(*http.Transport)) *BuildableClient {
cpy := b.clone()
tr := cpy.GetTransport()
for _, opt := range opts {
opt(tr)
}
cpy.transport = tr
return cpy
}
// WithDialerOptions copies the BuildableClient and returns it with the
// net.Dialer options applied. Will set the client's http.Transport DialContext
// member.
func (b *BuildableClient) WithDialerOptions(opts ...func(*net.Dialer)) *BuildableClient {
cpy := b.clone()
dialer := cpy.GetDialer()
for _, opt := range opts {
opt(dialer)
}
cpy.dialer = dialer
tr := cpy.GetTransport()
tr.DialContext = cpy.dialer.DialContext
cpy.transport = tr
return cpy
}
// WithTimeout Sets the timeout used by the client for all requests.
func (b *BuildableClient) WithTimeout(timeout time.Duration) *BuildableClient {
cpy := b.clone()
cpy.clientTimeout = timeout
return cpy
}
// GetTransport returns a copy of the client's HTTP Transport.
func (b *BuildableClient) GetTransport() *http.Transport {
var tr *http.Transport
if b.transport != nil {
tr = b.transport.Clone()
} else {
tr = defaultHTTPTransport()
}
return tr
}
// GetDialer returns a copy of the client's network dialer.
func (b *BuildableClient) GetDialer() *net.Dialer {
var dialer *net.Dialer
if b.dialer != nil {
dialer = shallowCopyStruct(b.dialer).(*net.Dialer)
} else {
dialer = defaultDialer()
}
return dialer
}
// GetTimeout returns a copy of the client's timeout to cancel requests with.
func (b *BuildableClient) GetTimeout() time.Duration {
return b.clientTimeout
}
func defaultDialer() *net.Dialer {
return &net.Dialer{
Timeout: DefaultDialConnectTimeout,
KeepAlive: DefaultDialKeepAliveTimeout,
DualStack: true,
}
}
func defaultHTTPTransport() *http.Transport {
dialer := defaultDialer()
tr := &http.Transport{
Proxy: http.ProxyFromEnvironment,
DialContext: dialer.DialContext,
TLSHandshakeTimeout: DefaultHTTPTransportTLSHandleshakeTimeout,
MaxIdleConns: DefaultHTTPTransportMaxIdleConns,
MaxIdleConnsPerHost: DefaultHTTPTransportMaxIdleConnsPerHost,
IdleConnTimeout: DefaultHTTPTransportIdleConnTimeout,
ExpectContinueTimeout: DefaultHTTPTransportExpectContinueTimeout,
ForceAttemptHTTP2: true,
TLSClientConfig: &tls.Config{
MinVersion: DefaultHTTPTransportTLSMinVersion,
},
}
return tr
}
// shallowCopyStruct creates a shallow copy of the passed in source struct, and
// returns that copy of the same struct type.
func shallowCopyStruct(src interface{}) interface{} {
srcVal := reflect.ValueOf(src)
srcValType := srcVal.Type()
var returnAsPtr bool
if srcValType.Kind() == reflect.Ptr {
srcVal = srcVal.Elem()
srcValType = srcValType.Elem()
returnAsPtr = true
}
dstVal := reflect.New(srcValType).Elem()
for i := 0; i < srcValType.NumField(); i++ {
ft := srcValType.Field(i)
if len(ft.PkgPath) != 0 {
// unexported fields have a PkgPath
continue
}
dstVal.Field(i).Set(srcVal.Field(i))
}
if returnAsPtr {
dstVal = dstVal.Addr()
}
return dstVal.Interface()
}
// wrapWithLimitedRedirect updates the Client's Transport and CheckRedirect to
// not follow any redirect other than 307 and 308. No other redirect will be
// followed.
//
// If the client does not have a Transport defined will use a new SDK default
// http.Transport configuration.
func wrapWithLimitedRedirect(c *http.Client) *http.Client {
tr := c.Transport
if tr == nil {
tr = defaultHTTPTransport()
}
cc := *c
cc.CheckRedirect = limitedRedirect
cc.Transport = suppressBadHTTPRedirectTransport{
tr: tr,
}
return &cc
}
// limitedRedirect is a CheckRedirect that prevents the client from following
// any non 307/308 HTTP status code redirects.
//
// The 307 and 308 redirects are allowed because the client must use the
// original HTTP method for the redirected to location. Whereas 301 and 302
// allow the client to switch to GET for the redirect.
//
// Suppresses all redirect requests with a URL of badHTTPRedirectLocation.
func limitedRedirect(r *http.Request, via []*http.Request) error {
// Request.Response, in CheckRedirect is the response that is triggering
// the redirect.
resp := r.Response
if r.URL.String() == badHTTPRedirectLocation {
resp.Header.Del(badHTTPRedirectLocation)
return http.ErrUseLastResponse
}
switch resp.StatusCode {
case 307, 308:
// Only allow 307 and 308 redirects as they preserve the method.
return nil
}
return http.ErrUseLastResponse
}
// suppressBadHTTPRedirectTransport provides an http.RoundTripper
// implementation that wraps another http.RoundTripper to prevent HTTP client
// receiving 301 and 302 HTTP responses redirects without the required location
// header.
//
// Clients using this utility must have a CheckRedirect, e.g. limitedRedirect,
// that check for responses with having a URL of baseHTTPRedirectLocation, and
// suppress the redirect.
type suppressBadHTTPRedirectTransport struct {
tr http.RoundTripper
}
const badHTTPRedirectLocation = `https://amazonaws.com/badhttpredirectlocation`
// RoundTrip backfills a stub location when a 301/302 response is received
// without a location. This stub location is used by limitedRedirect to prevent
// the HTTP client from failing attempting to use follow a redirect without a
// location value.
func (t suppressBadHTTPRedirectTransport) RoundTrip(r *http.Request) (*http.Response, error) {
resp, err := t.tr.RoundTrip(r)
if err != nil {
return resp, err
}
// S3 is the only known service to return 301 without location header.
// The Go standard library HTTP client will return an opaque error if it
// tries to follow a 301/302 response missing the location header.
switch resp.StatusCode {
case 301, 302:
if v := resp.Header.Get("Location"); len(v) == 0 {
resp.Header.Set("Location", badHTTPRedirectLocation)
}
}
return resp, err
}

42
vendor/github.com/aws/aws-sdk-go-v2/aws/transport/http/content_type.go generated vendored Normal file
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package http
import (
"context"
"fmt"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// removeContentTypeHeader is a build middleware that removes
// content type header if content-length header is unset or
// is set to zero,
type removeContentTypeHeader struct {
}
// ID the name of the middleware.
func (m *removeContentTypeHeader) ID() string {
return "RemoveContentTypeHeader"
}
// HandleBuild adds or appends the constructed user agent to the request.
func (m *removeContentTypeHeader) HandleBuild(ctx context.Context, in middleware.BuildInput, next middleware.BuildHandler) (
out middleware.BuildOutput, metadata middleware.Metadata, err error,
) {
req, ok := in.Request.(*smithyhttp.Request)
if !ok {
return out, metadata, fmt.Errorf("unknown transport type %T", in)
}
// remove contentTypeHeader when content-length is zero
if req.ContentLength == 0 {
req.Header.Del("content-type")
}
return next.HandleBuild(ctx, in)
}
// RemoveContentTypeHeader removes content-type header if
// content length is unset or equal to zero.
func RemoveContentTypeHeader(stack *middleware.Stack) error {
return stack.Build.Add(&removeContentTypeHeader{}, middleware.After)
}

33
vendor/github.com/aws/aws-sdk-go-v2/aws/transport/http/response_error.go generated vendored Normal file
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@ -0,0 +1,33 @@
package http
import (
"errors"
"fmt"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// ResponseError provides the HTTP centric error type wrapping the underlying error
// with the HTTP response value and the deserialized RequestID.
type ResponseError struct {
*smithyhttp.ResponseError
// RequestID associated with response error
RequestID string
}
// ServiceRequestID returns the request id associated with Response Error
func (e *ResponseError) ServiceRequestID() string { return e.RequestID }
// Error returns the formatted error
func (e *ResponseError) Error() string {
return fmt.Sprintf(
"https response error StatusCode: %d, RequestID: %s, %v",
e.Response.StatusCode, e.RequestID, e.Err)
}
// As populates target and returns true if the type of target is a error type that
// the ResponseError embeds, (e.g.AWS HTTP ResponseError)
func (e *ResponseError) As(target interface{}) bool {
return errors.As(e.ResponseError, target)
}

54
vendor/github.com/aws/aws-sdk-go-v2/aws/transport/http/response_error_middleware.go generated vendored Normal file
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package http
import (
"context"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// AddResponseErrorMiddleware adds response error wrapper middleware
func AddResponseErrorMiddleware(stack *middleware.Stack) error {
// add error wrapper middleware before request id retriever middleware so that it can wrap the error response
// returned by operation deserializers
return stack.Deserialize.Insert(&responseErrorWrapper{}, "RequestIDRetriever", middleware.Before)
}
type responseErrorWrapper struct {
}
// ID returns the middleware identifier
func (m *responseErrorWrapper) ID() string {
return "ResponseErrorWrapper"
}
func (m *responseErrorWrapper) HandleDeserialize(ctx context.Context, in middleware.DeserializeInput, next middleware.DeserializeHandler) (
out middleware.DeserializeOutput, metadata middleware.Metadata, err error,
) {
out, metadata, err = next.HandleDeserialize(ctx, in)
if err == nil {
// Nothing to do when there is no error.
return out, metadata, err
}
resp, ok := out.RawResponse.(*smithyhttp.Response)
if !ok {
// No raw response to wrap with.
return out, metadata, err
}
// look for request id in metadata
reqID, _ := awsmiddleware.GetRequestIDMetadata(metadata)
// Wrap the returned smithy error with the request id retrieved from the metadata
err = &ResponseError{
ResponseError: &smithyhttp.ResponseError{
Response: resp,
Err: err,
},
RequestID: reqID,
}
return out, metadata, err
}

104
vendor/github.com/aws/aws-sdk-go-v2/aws/transport/http/timeout_read_closer.go generated vendored Normal file
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package http
import (
"context"
"fmt"
"io"
"time"
"github.com/aws/smithy-go"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
type readResult struct {
n int
err error
}
// ResponseTimeoutError is an error when the reads from the response are
// delayed longer than the timeout the read was configured for.
type ResponseTimeoutError struct {
TimeoutDur time.Duration
}
// Timeout returns that the error is was caused by a timeout, and can be
// retried.
func (*ResponseTimeoutError) Timeout() bool { return true }
func (e *ResponseTimeoutError) Error() string {
return fmt.Sprintf("read on body reach timeout limit, %v", e.TimeoutDur)
}
// timeoutReadCloser will handle body reads that take too long.
// We will return a ErrReadTimeout error if a timeout occurs.
type timeoutReadCloser struct {
reader io.ReadCloser
duration time.Duration
}
// Read will spin off a goroutine to call the reader's Read method. We will
// select on the timer's channel or the read's channel. Whoever completes first
// will be returned.
func (r *timeoutReadCloser) Read(b []byte) (int, error) {
timer := time.NewTimer(r.duration)
c := make(chan readResult, 1)
go func() {
n, err := r.reader.Read(b)
timer.Stop()
c <- readResult{n: n, err: err}
}()
select {
case data := <-c:
return data.n, data.err
case <-timer.C:
return 0, &ResponseTimeoutError{TimeoutDur: r.duration}
}
}
func (r *timeoutReadCloser) Close() error {
return r.reader.Close()
}
// AddResponseReadTimeoutMiddleware adds a middleware to the stack that wraps the
// response body so that a read that takes too long will return an error.
func AddResponseReadTimeoutMiddleware(stack *middleware.Stack, duration time.Duration) error {
return stack.Deserialize.Add(&readTimeout{duration: duration}, middleware.After)
}
// readTimeout wraps the response body with a timeoutReadCloser
type readTimeout struct {
duration time.Duration
}
// ID returns the id of the middleware
func (*readTimeout) ID() string {
return "ReadResponseTimeout"
}
// HandleDeserialize implements the DeserializeMiddleware interface
func (m *readTimeout) HandleDeserialize(
ctx context.Context, in middleware.DeserializeInput, next middleware.DeserializeHandler,
) (
out middleware.DeserializeOutput, metadata middleware.Metadata, err error,
) {
out, metadata, err = next.HandleDeserialize(ctx, in)
if err != nil {
return out, metadata, err
}
response, ok := out.RawResponse.(*smithyhttp.Response)
if !ok {
return out, metadata, &smithy.DeserializationError{Err: fmt.Errorf("unknown transport type %T", out.RawResponse)}
}
response.Body = &timeoutReadCloser{
reader: response.Body,
duration: m.duration,
}
out.RawResponse = response
return out, metadata, err
}

42
vendor/github.com/aws/aws-sdk-go-v2/aws/types.go generated vendored Normal file
View File

@ -0,0 +1,42 @@
package aws
import (
"fmt"
)
// Ternary is an enum allowing an unknown or none state in addition to a bool's
// true and false.
type Ternary int
func (t Ternary) String() string {
switch t {
case UnknownTernary:
return "unknown"
case FalseTernary:
return "false"
case TrueTernary:
return "true"
default:
return fmt.Sprintf("unknown value, %d", int(t))
}
}
// Bool returns true if the value is TrueTernary, false otherwise.
func (t Ternary) Bool() bool {
return t == TrueTernary
}
// Enumerations for the values of the Ternary type.
const (
UnknownTernary Ternary = iota
FalseTernary
TrueTernary
)
// BoolTernary returns a true or false Ternary value for the bool provided.
func BoolTernary(v bool) Ternary {
if v {
return TrueTernary
}
return FalseTernary
}

8
vendor/github.com/aws/aws-sdk-go-v2/aws/version.go generated vendored Normal file
View File

@ -0,0 +1,8 @@
// Package aws provides core functionality for making requests to AWS services.
package aws
// SDKName is the name of this AWS SDK
const SDKName = "aws-sdk-go-v2"
// SDKVersion is the version of this SDK
const SDKVersion = goModuleVersion

58
vendor/github.com/aws/aws-sdk-go-v2/internal/configsources/CHANGELOG.md generated vendored Normal file
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@ -0,0 +1,58 @@
# v1.1.5 (2022-02-24)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.1.4 (2022-01-14)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.1.3 (2022-01-07)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.1.2 (2021-12-02)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.1.1 (2021-11-19)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.1.0 (2021-11-06)
* **Feature**: The SDK now supports configuration of FIPS and DualStack endpoints using environment variables, shared configuration, or programmatically.
* **Dependency Update**: Updated to the latest SDK module versions
# v1.0.7 (2021-10-21)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.0.6 (2021-10-11)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.0.5 (2021-09-17)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.0.4 (2021-08-27)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.0.3 (2021-08-19)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.0.2 (2021-08-04)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.0.1 (2021-07-15)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.0.0 (2021-06-25)
* **Release**: Release new modules
* **Dependency Update**: Updated to the latest SDK module versions

202
vendor/github.com/aws/aws-sdk-go-v2/internal/configsources/LICENSE.txt generated vendored Normal file
View File

@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
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.

65
vendor/github.com/aws/aws-sdk-go-v2/internal/configsources/config.go generated vendored Normal file
View File

@ -0,0 +1,65 @@
package configsources
import (
"context"
"github.com/aws/aws-sdk-go-v2/aws"
)
// EnableEndpointDiscoveryProvider is an interface for retrieving external configuration value
// for Enable Endpoint Discovery
type EnableEndpointDiscoveryProvider interface {
GetEnableEndpointDiscovery(ctx context.Context) (value aws.EndpointDiscoveryEnableState, found bool, err error)
}
// ResolveEnableEndpointDiscovery extracts the first instance of a EnableEndpointDiscoveryProvider from the config slice.
// Additionally returns a aws.EndpointDiscoveryEnableState to indicate if the value was found in provided configs,
// and error if one is encountered.
func ResolveEnableEndpointDiscovery(ctx context.Context, configs []interface{}) (value aws.EndpointDiscoveryEnableState, found bool, err error) {
for _, cfg := range configs {
if p, ok := cfg.(EnableEndpointDiscoveryProvider); ok {
value, found, err = p.GetEnableEndpointDiscovery(ctx)
if err != nil || found {
break
}
}
}
return
}
// UseDualStackEndpointProvider is an interface for retrieving external configuration values for UseDualStackEndpoint
type UseDualStackEndpointProvider interface {
GetUseDualStackEndpoint(context.Context) (value aws.DualStackEndpointState, found bool, err error)
}
// ResolveUseDualStackEndpoint extracts the first instance of a UseDualStackEndpoint from the config slice.
// Additionally returns a boolean to indicate if the value was found in provided configs, and error if one is encountered.
func ResolveUseDualStackEndpoint(ctx context.Context, configs []interface{}) (value aws.DualStackEndpointState, found bool, err error) {
for _, cfg := range configs {
if p, ok := cfg.(UseDualStackEndpointProvider); ok {
value, found, err = p.GetUseDualStackEndpoint(ctx)
if err != nil || found {
break
}
}
}
return
}
// UseFIPSEndpointProvider is an interface for retrieving external configuration values for UseFIPSEndpoint
type UseFIPSEndpointProvider interface {
GetUseFIPSEndpoint(context.Context) (value aws.FIPSEndpointState, found bool, err error)
}
// ResolveUseFIPSEndpoint extracts the first instance of a UseFIPSEndpointProvider from the config slice.
// Additionally, returns a boolean to indicate if the value was found in provided configs, and error if one is encountered.
func ResolveUseFIPSEndpoint(ctx context.Context, configs []interface{}) (value aws.FIPSEndpointState, found bool, err error) {
for _, cfg := range configs {
if p, ok := cfg.(UseFIPSEndpointProvider); ok {
value, found, err = p.GetUseFIPSEndpoint(ctx)
if err != nil || found {
break
}
}
}
return
}

6
vendor/github.com/aws/aws-sdk-go-v2/internal/configsources/go_module_metadata.go generated vendored Normal file
View File

@ -0,0 +1,6 @@
// Code generated by internal/repotools/cmd/updatemodulemeta DO NOT EDIT.
package configsources
// goModuleVersion is the tagged release for this module
const goModuleVersion = "1.1.5"

30
vendor/github.com/aws/aws-sdk-go-v2/internal/endpoints/v2/CHANGELOG.md generated vendored Normal file
View File

@ -0,0 +1,30 @@
# v2.3.0 (2022-02-24)
* **Feature**: Updated `github.com/aws/smithy-go` to latest version
* **Dependency Update**: Updated to the latest SDK module versions
# v2.2.0 (2022-01-14)
* **Feature**: Updated `github.com/aws/smithy-go` to latest version
* **Dependency Update**: Updated to the latest SDK module versions
# v2.1.0 (2022-01-07)
* **Feature**: Updated `github.com/aws/smithy-go` to latest version
* **Dependency Update**: Updated to the latest SDK module versions
# v2.0.2 (2021-12-02)
* **Dependency Update**: Updated to the latest SDK module versions
# v2.0.1 (2021-11-19)
* **Dependency Update**: Updated to the latest SDK module versions
# v2.0.0 (2021-11-06)
* **Release**: Endpoint Variant Model Support
* **Feature**: The SDK now supports configuration of FIPS and DualStack endpoints using environment variables, shared configuration, or programmatically.
* **Feature**: Updated `github.com/aws/smithy-go` to latest version
* **Dependency Update**: Updated to the latest SDK module versions

202
vendor/github.com/aws/aws-sdk-go-v2/internal/endpoints/v2/LICENSE.txt generated vendored Normal file
View File

@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
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.

302
vendor/github.com/aws/aws-sdk-go-v2/internal/endpoints/v2/endpoints.go generated vendored Normal file
View File

@ -0,0 +1,302 @@
package endpoints
import (
"fmt"
"github.com/aws/smithy-go/logging"
"regexp"
"strings"
"github.com/aws/aws-sdk-go-v2/aws"
)
// DefaultKey is a compound map key of a variant and other values.
type DefaultKey struct {
Variant EndpointVariant
ServiceVariant ServiceVariant
}
// EndpointKey is a compound map key of a region and associated variant value.
type EndpointKey struct {
Region string
Variant EndpointVariant
ServiceVariant ServiceVariant
}
// EndpointVariant is a bit field to describe the endpoints attributes.
type EndpointVariant uint64
const (
// FIPSVariant indicates that the endpoint is FIPS capable.
FIPSVariant EndpointVariant = 1 << (64 - 1 - iota)
// DualStackVariant indicates that the endpoint is DualStack capable.
DualStackVariant
)
// ServiceVariant is a bit field to describe the service endpoint attributes.
type ServiceVariant uint64
const (
defaultProtocol = "https"
defaultSigner = "v4"
)
var (
protocolPriority = []string{"https", "http"}
signerPriority = []string{"v4", "s3v4"}
)
// Options provide configuration needed to direct how endpoints are resolved.
type Options struct {
// Logger is a logging implementation that log events should be sent to.
Logger logging.Logger
// LogDeprecated indicates that deprecated endpoints should be logged to the provided logger.
LogDeprecated bool
// ResolvedRegion is the resolved region string. If provided (non-zero length) it takes priority
// over the region name passed to the ResolveEndpoint call.
ResolvedRegion string
// Disable usage of HTTPS (TLS / SSL)
DisableHTTPS bool
// Instruct the resolver to use a service endpoint that supports dual-stack.
// If a service does not have a dual-stack endpoint an error will be returned by the resolver.
UseDualStackEndpoint aws.DualStackEndpointState
// Instruct the resolver to use a service endpoint that supports FIPS.
// If a service does not have a FIPS endpoint an error will be returned by the resolver.
UseFIPSEndpoint aws.FIPSEndpointState
// ServiceVariant is a bitfield of service specified endpoint variant data.
ServiceVariant ServiceVariant
}
// GetEndpointVariant returns the EndpointVariant for the variant associated options.
func (o Options) GetEndpointVariant() (v EndpointVariant) {
if o.UseDualStackEndpoint == aws.DualStackEndpointStateEnabled {
v |= DualStackVariant
}
if o.UseFIPSEndpoint == aws.FIPSEndpointStateEnabled {
v |= FIPSVariant
}
return v
}
// Partitions is a slice of partition
type Partitions []Partition
// ResolveEndpoint resolves a service endpoint for the given region and options.
func (ps Partitions) ResolveEndpoint(region string, opts Options) (aws.Endpoint, error) {
if len(ps) == 0 {
return aws.Endpoint{}, fmt.Errorf("no partitions found")
}
if opts.Logger == nil {
opts.Logger = logging.Nop{}
}
if len(opts.ResolvedRegion) > 0 {
region = opts.ResolvedRegion
}
for i := 0; i < len(ps); i++ {
if !ps[i].canResolveEndpoint(region, opts) {
continue
}
return ps[i].ResolveEndpoint(region, opts)
}
// fallback to first partition format to use when resolving the endpoint.
return ps[0].ResolveEndpoint(region, opts)
}
// Partition is an AWS partition description for a service and its' region endpoints.
type Partition struct {
ID string
RegionRegex *regexp.Regexp
PartitionEndpoint string
IsRegionalized bool
Defaults map[DefaultKey]Endpoint
Endpoints Endpoints
}
func (p Partition) canResolveEndpoint(region string, opts Options) bool {
_, ok := p.Endpoints[EndpointKey{
Region: region,
Variant: opts.GetEndpointVariant(),
}]
return ok || p.RegionRegex.MatchString(region)
}
// ResolveEndpoint resolves and service endpoint for the given region and options.
func (p Partition) ResolveEndpoint(region string, options Options) (resolved aws.Endpoint, err error) {
if len(region) == 0 && len(p.PartitionEndpoint) != 0 {
region = p.PartitionEndpoint
}
endpoints := p.Endpoints
variant := options.GetEndpointVariant()
serviceVariant := options.ServiceVariant
defaults := p.Defaults[DefaultKey{
Variant: variant,
ServiceVariant: serviceVariant,
}]
return p.endpointForRegion(region, variant, serviceVariant, endpoints).resolve(p.ID, region, defaults, options)
}
func (p Partition) endpointForRegion(region string, variant EndpointVariant, serviceVariant ServiceVariant, endpoints Endpoints) Endpoint {
key := EndpointKey{
Region: region,
Variant: variant,
}
if e, ok := endpoints[key]; ok {
return e
}
if !p.IsRegionalized {
return endpoints[EndpointKey{
Region: p.PartitionEndpoint,
Variant: variant,
ServiceVariant: serviceVariant,
}]
}
// Unable to find any matching endpoint, return
// blank that will be used for generic endpoint creation.
return Endpoint{}
}
// Endpoints is a map of service config regions to endpoints
type Endpoints map[EndpointKey]Endpoint
// CredentialScope is the credential scope of a region and service
type CredentialScope struct {
Region string
Service string
}
// Endpoint is a service endpoint description
type Endpoint struct {
// True if the endpoint cannot be resolved for this partition/region/service
Unresolveable aws.Ternary
Hostname string
Protocols []string
CredentialScope CredentialScope
SignatureVersions []string
// Indicates that this endpoint is deprecated.
Deprecated aws.Ternary
}
// IsZero returns whether the endpoint structure is an empty (zero) value.
func (e Endpoint) IsZero() bool {
switch {
case e.Unresolveable != aws.UnknownTernary:
return false
case len(e.Hostname) != 0:
return false
case len(e.Protocols) != 0:
return false
case e.CredentialScope != (CredentialScope{}):
return false
case len(e.SignatureVersions) != 0:
return false
}
return true
}
func (e Endpoint) resolve(partition, region string, def Endpoint, options Options) (aws.Endpoint, error) {
var merged Endpoint
merged.mergeIn(def)
merged.mergeIn(e)
e = merged
if e.IsZero() {
return aws.Endpoint{}, fmt.Errorf("unable to resolve endpoint for region: %v", region)
}
var u string
if e.Unresolveable != aws.TrueTernary {
// Only attempt to resolve the endpoint if it can be resolved.
hostname := strings.Replace(e.Hostname, "{region}", region, 1)
scheme := getEndpointScheme(e.Protocols, options.DisableHTTPS)
u = scheme + "://" + hostname
}
signingRegion := e.CredentialScope.Region
if len(signingRegion) == 0 {
signingRegion = region
}
signingName := e.CredentialScope.Service
if e.Deprecated == aws.TrueTernary && options.LogDeprecated {
options.Logger.Logf(logging.Warn, "endpoint identifier %q, url %q marked as deprecated", region, u)
}
return aws.Endpoint{
URL: u,
PartitionID: partition,
SigningRegion: signingRegion,
SigningName: signingName,
SigningMethod: getByPriority(e.SignatureVersions, signerPriority, defaultSigner),
}, nil
}
func (e *Endpoint) mergeIn(other Endpoint) {
if other.Unresolveable != aws.UnknownTernary {
e.Unresolveable = other.Unresolveable
}
if len(other.Hostname) > 0 {
e.Hostname = other.Hostname
}
if len(other.Protocols) > 0 {
e.Protocols = other.Protocols
}
if len(other.CredentialScope.Region) > 0 {
e.CredentialScope.Region = other.CredentialScope.Region
}
if len(other.CredentialScope.Service) > 0 {
e.CredentialScope.Service = other.CredentialScope.Service
}
if len(other.SignatureVersions) > 0 {
e.SignatureVersions = other.SignatureVersions
}
if other.Deprecated != aws.UnknownTernary {
e.Deprecated = other.Deprecated
}
}
func getEndpointScheme(protocols []string, disableHTTPS bool) string {
if disableHTTPS {
return "http"
}
return getByPriority(protocols, protocolPriority, defaultProtocol)
}
func getByPriority(s []string, p []string, def string) string {
if len(s) == 0 {
return def
}
for i := 0; i < len(p); i++ {
for j := 0; j < len(s); j++ {
if s[j] == p[i] {
return s[j]
}
}
}
return s[0]
}

6
vendor/github.com/aws/aws-sdk-go-v2/internal/endpoints/v2/go_module_metadata.go generated vendored Normal file
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@ -0,0 +1,6 @@
// Code generated by internal/repotools/cmd/updatemodulemeta DO NOT EDIT.
package endpoints
// goModuleVersion is the tagged release for this module
const goModuleVersion = "2.3.0"

33
vendor/github.com/aws/aws-sdk-go-v2/internal/rand/rand.go generated vendored Normal file
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@ -0,0 +1,33 @@
package rand
import (
"crypto/rand"
"fmt"
"io"
"math/big"
)
func init() {
Reader = rand.Reader
}
// Reader provides a random reader that can reset during testing.
var Reader io.Reader
var floatMaxBigInt = big.NewInt(1 << 53)
// Float64 returns a float64 read from an io.Reader source. The returned float will be between [0.0, 1.0).
func Float64(reader io.Reader) (float64, error) {
bi, err := rand.Int(reader, floatMaxBigInt)
if err != nil {
return 0, fmt.Errorf("failed to read random value, %v", err)
}
return float64(bi.Int64()) / (1 << 53), nil
}
// CryptoRandFloat64 returns a random float64 obtained from the crypto rand
// source.
func CryptoRandFloat64() (float64, error) {
return Float64(rand.Reader)
}

9
vendor/github.com/aws/aws-sdk-go-v2/internal/sdk/interfaces.go generated vendored Normal file
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@ -0,0 +1,9 @@
package sdk
// Invalidator provides access to a type's invalidate method to make it
// invalidate it cache.
//
// e.g aws.SafeCredentialsProvider's Invalidate method.
type Invalidator interface {
Invalidate()
}

74
vendor/github.com/aws/aws-sdk-go-v2/internal/sdk/time.go generated vendored Normal file
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@ -0,0 +1,74 @@
package sdk
import (
"context"
"time"
)
func init() {
NowTime = time.Now
Sleep = time.Sleep
SleepWithContext = sleepWithContext
}
// NowTime is a value for getting the current time. This value can be overridden
// for testing mocking out current time.
var NowTime func() time.Time
// Sleep is a value for sleeping for a duration. This value can be overridden
// for testing and mocking out sleep duration.
var Sleep func(time.Duration)
// SleepWithContext will wait for the timer duration to expire, or the context
// is canceled. Which ever happens first. If the context is canceled the Context's
// error will be returned.
//
// This value can be overridden for testing and mocking out sleep duration.
var SleepWithContext func(context.Context, time.Duration) error
// sleepWithContext will wait for the timer duration to expire, or the context
// is canceled. Which ever happens first. If the context is canceled the
// Context's error will be returned.
func sleepWithContext(ctx context.Context, dur time.Duration) error {
t := time.NewTimer(dur)
defer t.Stop()
select {
case <-t.C:
break
case <-ctx.Done():
return ctx.Err()
}
return nil
}
// noOpSleepWithContext does nothing, returns immediately.
func noOpSleepWithContext(context.Context, time.Duration) error {
return nil
}
func noOpSleep(time.Duration) {}
// TestingUseNopSleep is a utility for disabling sleep across the SDK for
// testing.
func TestingUseNopSleep() func() {
SleepWithContext = noOpSleepWithContext
Sleep = noOpSleep
return func() {
SleepWithContext = sleepWithContext
Sleep = time.Sleep
}
}
// TestingUseReferenceTime is a utility for swapping the time function across the SDK to return a specific reference time
// for testing purposes.
func TestingUseReferenceTime(referenceTime time.Time) func() {
NowTime = func() time.Time {
return referenceTime
}
return func() {
NowTime = time.Now
}
}

11
vendor/github.com/aws/aws-sdk-go-v2/internal/strings/strings.go generated vendored Normal file
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@ -0,0 +1,11 @@
package strings
import (
"strings"
)
// HasPrefixFold tests whether the string s begins with prefix, interpreted as UTF-8 strings,
// under Unicode case-folding.
func HasPrefixFold(s, prefix string) bool {
return len(s) >= len(prefix) && strings.EqualFold(s[0:len(prefix)], prefix)
}

27
vendor/github.com/aws/aws-sdk-go-v2/internal/sync/singleflight/LICENSE generated vendored Normal file
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@ -0,0 +1,27 @@
Copyright (c) 2009 The Go Authors. 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.

120
vendor/github.com/aws/aws-sdk-go-v2/internal/sync/singleflight/singleflight.go generated vendored Normal file
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// Copyright 2013 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 singleflight provides a duplicate function call suppression
// mechanism.
package singleflight
import "sync"
// call is an in-flight or completed singleflight.Do call
type call struct {
wg sync.WaitGroup
// These fields are written once before the WaitGroup is done
// and are only read after the WaitGroup is done.
val interface{}
err error
// forgotten indicates whether Forget was called with this call's key
// while the call was still in flight.
forgotten bool
// These fields are read and written with the singleflight
// mutex held before the WaitGroup is done, and are read but
// not written after the WaitGroup is done.
dups int
chans []chan<- Result
}
// Group represents a class of work and forms a namespace in
// which units of work can be executed with duplicate suppression.
type Group struct {
mu sync.Mutex // protects m
m map[string]*call // lazily initialized
}
// Result holds the results of Do, so they can be passed
// on a channel.
type Result struct {
Val interface{}
Err error
Shared bool
}
// Do executes and returns the results of the given function, making
// sure that only one execution is in-flight for a given key at a
// time. If a duplicate comes in, the duplicate caller waits for the
// original to complete and receives the same results.
// The return value shared indicates whether v was given to multiple callers.
func (g *Group) Do(key string, fn func() (interface{}, error)) (v interface{}, err error, shared bool) {
g.mu.Lock()
if g.m == nil {
g.m = make(map[string]*call)
}
if c, ok := g.m[key]; ok {
c.dups++
g.mu.Unlock()
c.wg.Wait()
return c.val, c.err, true
}
c := new(call)
c.wg.Add(1)
g.m[key] = c
g.mu.Unlock()
g.doCall(c, key, fn)
return c.val, c.err, c.dups > 0
}
// DoChan is like Do but returns a channel that will receive the
// results when they are ready.
func (g *Group) DoChan(key string, fn func() (interface{}, error)) <-chan Result {
ch := make(chan Result, 1)
g.mu.Lock()
if g.m == nil {
g.m = make(map[string]*call)
}
if c, ok := g.m[key]; ok {
c.dups++
c.chans = append(c.chans, ch)
g.mu.Unlock()
return ch
}
c := &call{chans: []chan<- Result{ch}}
c.wg.Add(1)
g.m[key] = c
g.mu.Unlock()
go g.doCall(c, key, fn)
return ch
}
// doCall handles the single call for a key.
func (g *Group) doCall(c *call, key string, fn func() (interface{}, error)) {
c.val, c.err = fn()
c.wg.Done()
g.mu.Lock()
if !c.forgotten {
delete(g.m, key)
}
for _, ch := range c.chans {
ch <- Result{c.val, c.err, c.dups > 0}
}
g.mu.Unlock()
}
// Forget tells the singleflight to forget about a key. Future calls
// to Do for this key will call the function rather than waiting for
// an earlier call to complete.
func (g *Group) Forget(key string) {
g.mu.Lock()
if c, ok := g.m[key]; ok {
c.forgotten = true
}
delete(g.m, key)
g.mu.Unlock()
}

13
vendor/github.com/aws/aws-sdk-go-v2/internal/timeconv/duration.go generated vendored Normal file
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package timeconv
import "time"
// FloatSecondsDur converts a fractional seconds to duration.
func FloatSecondsDur(v float64) time.Duration {
return time.Duration(v * float64(time.Second))
}
// DurSecondsFloat converts a duration into fractional seconds.
func DurSecondsFloat(d time.Duration) float64 {
return float64(d) / float64(time.Second)
}

74
vendor/github.com/aws/aws-sdk-go-v2/service/internal/presigned-url/CHANGELOG.md generated vendored Normal file
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# v1.8.0 (2022-02-24)
* **Feature**: Updated `github.com/aws/smithy-go` to latest version
* **Dependency Update**: Updated to the latest SDK module versions
# v1.7.0 (2022-01-14)
* **Feature**: Updated `github.com/aws/smithy-go` to latest version
* **Dependency Update**: Updated to the latest SDK module versions
# v1.6.0 (2022-01-07)
* **Feature**: Updated `github.com/aws/smithy-go` to latest version
* **Dependency Update**: Updated to the latest SDK module versions
# v1.5.2 (2021-12-02)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.5.1 (2021-11-19)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.5.0 (2021-11-06)
* **Feature**: Updated `github.com/aws/smithy-go` to latest version
* **Dependency Update**: Updated to the latest SDK module versions
# v1.4.0 (2021-10-21)
* **Feature**: Updated to latest version
* **Dependency Update**: Updated to the latest SDK module versions
# v1.3.2 (2021-10-11)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.3.1 (2021-09-17)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.3.0 (2021-08-27)
* **Feature**: Updated `github.com/aws/smithy-go` to latest version
* **Dependency Update**: Updated to the latest SDK module versions
# v1.2.3 (2021-08-19)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.2.2 (2021-08-04)
* **Dependency Update**: Updated `github.com/aws/smithy-go` to latest version.
* **Dependency Update**: Updated to the latest SDK module versions
# v1.2.1 (2021-07-15)
* **Dependency Update**: Updated `github.com/aws/smithy-go` to latest version
* **Dependency Update**: Updated to the latest SDK module versions
# v1.2.0 (2021-06-25)
* **Feature**: Updated `github.com/aws/smithy-go` to latest version
* **Dependency Update**: Updated to the latest SDK module versions
# v1.1.1 (2021-05-20)
* **Dependency Update**: Updated to the latest SDK module versions
# v1.1.0 (2021-05-14)
* **Feature**: Constant has been added to modules to enable runtime version inspection for reporting.
* **Dependency Update**: Updated to the latest SDK module versions

202
vendor/github.com/aws/aws-sdk-go-v2/service/internal/presigned-url/LICENSE.txt generated vendored Normal file
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@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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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.

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