ceph-csi/vendor/k8s.io/kube-openapi/pkg/validation/spec/swagger.go

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// Copyright 2015 go-swagger maintainers
//
// 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 spec
import (
"encoding/json"
"fmt"
"github.com/go-openapi/swag"
"k8s.io/kube-openapi/pkg/internal"
jsonv2 "k8s.io/kube-openapi/pkg/internal/third_party/go-json-experiment/json"
)
// Swagger this is the root document object for the API specification.
// It combines what previously was the Resource Listing and API Declaration (version 1.2 and earlier)
// together into one document.
//
// For more information: http://goo.gl/8us55a#swagger-object-
type Swagger struct {
VendorExtensible
SwaggerProps
}
// MarshalJSON marshals this swagger structure to json
func (s Swagger) MarshalJSON() ([]byte, error) {
b1, err := json.Marshal(s.SwaggerProps)
if err != nil {
return nil, err
}
b2, err := json.Marshal(s.VendorExtensible)
if err != nil {
return nil, err
}
return swag.ConcatJSON(b1, b2), nil
}
// UnmarshalJSON unmarshals a swagger spec from json
func (s *Swagger) UnmarshalJSON(data []byte) error {
if internal.UseOptimizedJSONUnmarshaling {
return jsonv2.Unmarshal(data, s)
}
var sw Swagger
if err := json.Unmarshal(data, &sw.SwaggerProps); err != nil {
return err
}
if err := json.Unmarshal(data, &sw.VendorExtensible); err != nil {
return err
}
*s = sw
return nil
}
func (s *Swagger) UnmarshalNextJSON(opts jsonv2.UnmarshalOptions, dec *jsonv2.Decoder) error {
// Note: If you're willing to make breaking changes, it is possible to
// optimize this and other usages of this pattern:
// https://github.com/kubernetes/kube-openapi/pull/319#discussion_r983165948
var x struct {
Extensions
SwaggerProps
}
if err := opts.UnmarshalNext(dec, &x); err != nil {
return err
}
s.Extensions = x.Extensions
s.SwaggerProps = x.SwaggerProps
s.Extensions.sanitize()
if len(s.Extensions) == 0 {
s.Extensions = nil
}
return nil
}
// SwaggerProps captures the top-level properties of an Api specification
//
// NOTE: validation rules
// - the scheme, when present must be from [http, https, ws, wss]
// - BasePath must start with a leading "/"
// - Paths is required
type SwaggerProps struct {
ID string `json:"id,omitempty"`
Consumes []string `json:"consumes,omitempty"`
Produces []string `json:"produces,omitempty"`
Schemes []string `json:"schemes,omitempty"`
Swagger string `json:"swagger,omitempty"`
Info *Info `json:"info,omitempty"`
Host string `json:"host,omitempty"`
BasePath string `json:"basePath,omitempty"`
Paths *Paths `json:"paths"`
Definitions Definitions `json:"definitions,omitempty"`
Parameters map[string]Parameter `json:"parameters,omitempty"`
Responses map[string]Response `json:"responses,omitempty"`
SecurityDefinitions SecurityDefinitions `json:"securityDefinitions,omitempty"`
Security []map[string][]string `json:"security,omitempty"`
Tags []Tag `json:"tags,omitempty"`
ExternalDocs *ExternalDocumentation `json:"externalDocs,omitempty"`
}
// Dependencies represent a dependencies property
type Dependencies map[string]SchemaOrStringArray
// SchemaOrBool represents a schema or boolean value, is biased towards true for the boolean property
type SchemaOrBool struct {
Allows bool
Schema *Schema
}
var jsTrue = []byte("true")
var jsFalse = []byte("false")
// MarshalJSON convert this object to JSON
func (s SchemaOrBool) MarshalJSON() ([]byte, error) {
if s.Schema != nil {
return json.Marshal(s.Schema)
}
if s.Schema == nil && !s.Allows {
return jsFalse, nil
}
return jsTrue, nil
}
// UnmarshalJSON converts this bool or schema object from a JSON structure
func (s *SchemaOrBool) UnmarshalJSON(data []byte) error {
if internal.UseOptimizedJSONUnmarshaling {
return jsonv2.Unmarshal(data, s)
}
var nw SchemaOrBool
if len(data) >= 4 {
if data[0] == '{' {
var sch Schema
if err := json.Unmarshal(data, &sch); err != nil {
return err
}
nw.Schema = &sch
}
nw.Allows = !(data[0] == 'f' && data[1] == 'a' && data[2] == 'l' && data[3] == 's' && data[4] == 'e')
}
*s = nw
return nil
}
func (s *SchemaOrBool) UnmarshalNextJSON(opts jsonv2.UnmarshalOptions, dec *jsonv2.Decoder) error {
switch k := dec.PeekKind(); k {
case '{':
err := opts.UnmarshalNext(dec, &s.Schema)
if err != nil {
return err
}
s.Allows = true
return nil
case 't', 'f':
err := opts.UnmarshalNext(dec, &s.Allows)
if err != nil {
return err
}
return nil
default:
return fmt.Errorf("expected object or bool, not '%v'", k.String())
}
}
// SchemaOrStringArray represents a schema or a string array
type SchemaOrStringArray struct {
Schema *Schema
Property []string
}
// MarshalJSON converts this schema object or array into JSON structure
func (s SchemaOrStringArray) MarshalJSON() ([]byte, error) {
if len(s.Property) > 0 {
return json.Marshal(s.Property)
}
if s.Schema != nil {
return json.Marshal(s.Schema)
}
return []byte("null"), nil
}
// UnmarshalJSON converts this schema object or array from a JSON structure
func (s *SchemaOrStringArray) UnmarshalJSON(data []byte) error {
if internal.UseOptimizedJSONUnmarshaling {
return jsonv2.Unmarshal(data, s)
}
var first byte
if len(data) > 1 {
first = data[0]
}
var nw SchemaOrStringArray
if first == '{' {
var sch Schema
if err := json.Unmarshal(data, &sch); err != nil {
return err
}
nw.Schema = &sch
}
if first == '[' {
if err := json.Unmarshal(data, &nw.Property); err != nil {
return err
}
}
*s = nw
return nil
}
func (s *SchemaOrStringArray) UnmarshalNextJSON(opts jsonv2.UnmarshalOptions, dec *jsonv2.Decoder) error {
switch dec.PeekKind() {
case '{':
return opts.UnmarshalNext(dec, &s.Schema)
case '[':
return opts.UnmarshalNext(dec, &s.Property)
default:
_, err := dec.ReadValue()
return err
}
}
// Definitions contains the models explicitly defined in this spec
// An object to hold data types that can be consumed and produced by operations.
// These data types can be primitives, arrays or models.
//
// For more information: http://goo.gl/8us55a#definitionsObject
type Definitions map[string]Schema
// SecurityDefinitions a declaration of the security schemes available to be used in the specification.
// This does not enforce the security schemes on the operations and only serves to provide
// the relevant details for each scheme.
//
// For more information: http://goo.gl/8us55a#securityDefinitionsObject
type SecurityDefinitions map[string]*SecurityScheme
// StringOrArray represents a value that can either be a string
// or an array of strings. Mainly here for serialization purposes
type StringOrArray []string
// Contains returns true when the value is contained in the slice
func (s StringOrArray) Contains(value string) bool {
for _, str := range s {
if str == value {
return true
}
}
return false
}
// UnmarshalJSON unmarshals this string or array object from a JSON array or JSON string
func (s *StringOrArray) UnmarshalJSON(data []byte) error {
if internal.UseOptimizedJSONUnmarshaling {
return jsonv2.Unmarshal(data, s)
}
var first byte
if len(data) > 1 {
first = data[0]
}
if first == '[' {
var parsed []string
if err := json.Unmarshal(data, &parsed); err != nil {
return err
}
*s = StringOrArray(parsed)
return nil
}
var single interface{}
if err := json.Unmarshal(data, &single); err != nil {
return err
}
if single == nil {
return nil
}
switch v := single.(type) {
case string:
*s = StringOrArray([]string{v})
return nil
default:
return fmt.Errorf("only string or array is allowed, not %T", single)
}
}
func (s *StringOrArray) UnmarshalNextJSON(opts jsonv2.UnmarshalOptions, dec *jsonv2.Decoder) error {
switch k := dec.PeekKind(); k {
case '[':
*s = StringOrArray{}
return opts.UnmarshalNext(dec, (*[]string)(s))
case '"':
*s = StringOrArray{""}
return opts.UnmarshalNext(dec, &(*s)[0])
case 'n':
// Throw out null token
_, _ = dec.ReadToken()
return nil
default:
return fmt.Errorf("expected string or array, not '%v'", k.String())
}
}
// MarshalJSON converts this string or array to a JSON array or JSON string
func (s StringOrArray) MarshalJSON() ([]byte, error) {
if len(s) == 1 {
return json.Marshal([]string(s)[0])
}
return json.Marshal([]string(s))
}
// SchemaOrArray represents a value that can either be a Schema
// or an array of Schema. Mainly here for serialization purposes
type SchemaOrArray struct {
Schema *Schema
Schemas []Schema
}
// Len returns the number of schemas in this property
func (s SchemaOrArray) Len() int {
if s.Schema != nil {
return 1
}
return len(s.Schemas)
}
// ContainsType returns true when one of the schemas is of the specified type
func (s *SchemaOrArray) ContainsType(name string) bool {
if s.Schema != nil {
return s.Schema.Type != nil && s.Schema.Type.Contains(name)
}
return false
}
// MarshalJSON converts this schema object or array into JSON structure
func (s SchemaOrArray) MarshalJSON() ([]byte, error) {
if len(s.Schemas) > 0 {
return json.Marshal(s.Schemas)
}
return json.Marshal(s.Schema)
}
// UnmarshalJSON converts this schema object or array from a JSON structure
func (s *SchemaOrArray) UnmarshalJSON(data []byte) error {
if internal.UseOptimizedJSONUnmarshaling {
return jsonv2.Unmarshal(data, s)
}
var nw SchemaOrArray
var first byte
if len(data) > 1 {
first = data[0]
}
if first == '{' {
var sch Schema
if err := json.Unmarshal(data, &sch); err != nil {
return err
}
nw.Schema = &sch
}
if first == '[' {
if err := json.Unmarshal(data, &nw.Schemas); err != nil {
return err
}
}
*s = nw
return nil
}
func (s *SchemaOrArray) UnmarshalNextJSON(opts jsonv2.UnmarshalOptions, dec *jsonv2.Decoder) error {
switch dec.PeekKind() {
case '{':
return opts.UnmarshalNext(dec, &s.Schema)
case '[':
return opts.UnmarshalNext(dec, &s.Schemas)
default:
_, err := dec.ReadValue()
return err
}
}