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Update Godeps to use kube-openapi

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This commit is contained in:
mbohlool
2017-07-19 23:36:07 -07:00
parent 56fd5853b3
commit 3bde9a1e8c
13 changed files with 3363 additions and 0 deletions
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24
Godeps/Godeps.json generated
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@@ -3032,6 +3032,30 @@
"Comment": "v1.2.0-beta.1",
"Rev": "c2ac40f1adf8c42a79badddb2a2acd673cae3bcb"
},
{
"ImportPath": "k8s.io/kube-openapi/pkg/aggregator",
"Rev": "80f07ef71bb4f781233c65aa8d0369e4ecafab87"
},
{
"ImportPath": "k8s.io/kube-openapi/pkg/builder",
"Rev": "80f07ef71bb4f781233c65aa8d0369e4ecafab87"
},
{
"ImportPath": "k8s.io/kube-openapi/pkg/common",
"Rev": "80f07ef71bb4f781233c65aa8d0369e4ecafab87"
},
{
"ImportPath": "k8s.io/kube-openapi/pkg/generators",
"Rev": "80f07ef71bb4f781233c65aa8d0369e4ecafab87"
},
{
"ImportPath": "k8s.io/kube-openapi/pkg/handler",
"Rev": "80f07ef71bb4f781233c65aa8d0369e4ecafab87"
},
{
"ImportPath": "k8s.io/kube-openapi/pkg/util",
"Rev": "80f07ef71bb4f781233c65aa8d0369e4ecafab87"
},
{
"ImportPath": "k8s.io/utils/exec",
"Rev": "9fdc871a36f37980dd85f96d576b20d564cc0784"

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Godeps/LICENSES generated
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202
vendor/k8s.io/kube-openapi/LICENSE generated vendored Normal file
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@@ -0,0 +1,202 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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vendor/k8s.io/kube-openapi/pkg/aggregator/aggregator.go generated vendored Normal file
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/*
Copyright 2017 The Kubernetes 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 aggregator
import (
"encoding/json"
"fmt"
"reflect"
"strings"
"github.com/go-openapi/spec"
"k8s.io/kube-openapi/pkg/util"
)
const (
definitionPrefix = "#/definitions/"
)
// Run a walkRefCallback method on all references of an OpenAPI spec
type referenceWalker struct {
// walkRefCallback will be called on each reference and the return value
// will replace that reference. This will allow the callers to change
// all/some references of an spec (e.g. useful in renaming definitions).
walkRefCallback func(ref spec.Ref) spec.Ref
// The spec to walk through.
root *spec.Swagger
// Keep track of visited references
alreadyVisited map[string]bool
}
func walkOnAllReferences(walkRef func(ref spec.Ref) spec.Ref, sp *spec.Swagger) {
walker := &referenceWalker{walkRefCallback: walkRef, root: sp, alreadyVisited: map[string]bool{}}
walker.Start()
}
func (s *referenceWalker) walkRef(ref spec.Ref) spec.Ref {
refStr := ref.String()
// References that start with #/definitions/ has a definition
// inside the same spec file. If that is the case, walk through
// those definitions too.
// We do not support external references yet.
if !s.alreadyVisited[refStr] && strings.HasPrefix(refStr, definitionPrefix) {
s.alreadyVisited[refStr] = true
def := s.root.Definitions[refStr[len(definitionPrefix):]]
s.walkSchema(&def)
}
return s.walkRefCallback(ref)
}
func (s *referenceWalker) walkSchema(schema *spec.Schema) {
if schema == nil {
return
}
schema.Ref = s.walkRef(schema.Ref)
for _, v := range schema.Definitions {
s.walkSchema(&v)
}
for _, v := range schema.Properties {
s.walkSchema(&v)
}
for _, v := range schema.PatternProperties {
s.walkSchema(&v)
}
for _, v := range schema.AllOf {
s.walkSchema(&v)
}
for _, v := range schema.AnyOf {
s.walkSchema(&v)
}
for _, v := range schema.OneOf {
s.walkSchema(&v)
}
if schema.Not != nil {
s.walkSchema(schema.Not)
}
if schema.AdditionalProperties != nil && schema.AdditionalProperties.Schema != nil {
s.walkSchema(schema.AdditionalProperties.Schema)
}
if schema.AdditionalItems != nil && schema.AdditionalItems.Schema != nil {
s.walkSchema(schema.AdditionalItems.Schema)
}
if schema.Items != nil {
if schema.Items.Schema != nil {
s.walkSchema(schema.Items.Schema)
}
for _, v := range schema.Items.Schemas {
s.walkSchema(&v)
}
}
}
func (s *referenceWalker) walkParams(params []spec.Parameter) {
if params == nil {
return
}
for _, param := range params {
param.Ref = s.walkRef(param.Ref)
s.walkSchema(param.Schema)
if param.Items != nil {
param.Items.Ref = s.walkRef(param.Items.Ref)
}
}
}
func (s *referenceWalker) walkResponse(resp *spec.Response) {
if resp == nil {
return
}
resp.Ref = s.walkRef(resp.Ref)
s.walkSchema(resp.Schema)
}
func (s *referenceWalker) walkOperation(op *spec.Operation) {
if op == nil {
return
}
s.walkParams(op.Parameters)
if op.Responses == nil {
return
}
s.walkResponse(op.Responses.Default)
for _, r := range op.Responses.StatusCodeResponses {
s.walkResponse(&r)
}
}
func (s *referenceWalker) Start() {
for _, pathItem := range s.root.Paths.Paths {
s.walkParams(pathItem.Parameters)
s.walkOperation(pathItem.Delete)
s.walkOperation(pathItem.Get)
s.walkOperation(pathItem.Head)
s.walkOperation(pathItem.Options)
s.walkOperation(pathItem.Patch)
s.walkOperation(pathItem.Post)
s.walkOperation(pathItem.Put)
}
}
// FilterSpecByPaths remove unnecessary paths and unused definitions.
func FilterSpecByPaths(sp *spec.Swagger, keepPathPrefixes []string) {
// First remove unwanted paths
prefixes := util.NewTrie(keepPathPrefixes)
orgPaths := sp.Paths
if orgPaths == nil {
return
}
sp.Paths = &spec.Paths{
VendorExtensible: orgPaths.VendorExtensible,
Paths: map[string]spec.PathItem{},
}
for path, pathItem := range orgPaths.Paths {
if !prefixes.HasPrefix(path) {
continue
}
sp.Paths.Paths[path] = pathItem
}
// Walk all references to find all definition references.
usedDefinitions := map[string]bool{}
walkOnAllReferences(func(ref spec.Ref) spec.Ref {
if ref.String() != "" {
refStr := ref.String()
if strings.HasPrefix(refStr, definitionPrefix) {
usedDefinitions[refStr[len(definitionPrefix):]] = true
}
}
return ref
}, sp)
// Remove unused definitions
orgDefinitions := sp.Definitions
sp.Definitions = spec.Definitions{}
for k, v := range orgDefinitions {
if usedDefinitions[k] {
sp.Definitions[k] = v
}
}
}
func renameDefinition(s *spec.Swagger, old, new string) {
old_ref := definitionPrefix + old
new_ref := definitionPrefix + new
walkOnAllReferences(func(ref spec.Ref) spec.Ref {
if ref.String() == old_ref {
return spec.MustCreateRef(new_ref)
}
return ref
}, s)
s.Definitions[new] = s.Definitions[old]
delete(s.Definitions, old)
}
// Copy paths and definitions from source to dest, rename definitions if needed.
// dest will be mutated, and source will not be changed.
func MergeSpecs(dest, source *spec.Swagger) error {
sourceCopy, err := CloneSpec(source)
if err != nil {
return err
}
for k, v := range sourceCopy.Paths.Paths {
if _, found := dest.Paths.Paths[k]; found {
return fmt.Errorf("unable to merge: duplicated path %s", k)
}
dest.Paths.Paths[k] = v
}
usedNames := map[string]bool{}
for k := range dest.Definitions {
usedNames[k] = true
}
type Rename struct {
from, to string
}
renames := []Rename{}
for k, v := range sourceCopy.Definitions {
if usedNames[k] {
v2, found := dest.Definitions[k]
// Reuse model iff they are exactly the same.
if found && reflect.DeepEqual(v, v2) {
continue
}
i := 2
newName := fmt.Sprintf("%s_v%d", k, i)
_, foundInSource := sourceCopy.Definitions[newName]
for usedNames[newName] || foundInSource {
i += 1
newName = fmt.Sprintf("%s_v%d", k, i)
_, foundInSource = sourceCopy.Definitions[newName]
}
renames = append(renames, Rename{from: k, to: newName})
usedNames[newName] = true
}
}
for _, r := range renames {
renameDefinition(sourceCopy, r.from, r.to)
}
for k, v := range sourceCopy.Definitions {
if _, found := dest.Definitions[k]; !found {
dest.Definitions[k] = v
}
}
return nil
}
// Clone OpenAPI spec
func CloneSpec(source *spec.Swagger) (*spec.Swagger, error) {
// TODO(mehdy): Find a faster way to clone an spec
bytes, err := json.Marshal(source)
if err != nil {
return nil, err
}
var ret spec.Swagger
err = json.Unmarshal(bytes, &ret)
if err != nil {
return nil, err
}
return &ret, nil
}

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vendor/k8s.io/kube-openapi/pkg/builder/doc.go generated vendored Normal file
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/*
Copyright 2016 The Kubernetes 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 builder contains code to generate OpenAPI discovery spec (which
// initial version of it also known as Swagger 2.0).
// For more details: https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md
package builder

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vendor/k8s.io/kube-openapi/pkg/builder/openapi.go generated vendored Normal file
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/*
Copyright 2016 The Kubernetes 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 builder
import (
"encoding/json"
"fmt"
"net/http"
"reflect"
"strings"
restful "github.com/emicklei/go-restful"
"github.com/go-openapi/spec"
"k8s.io/kube-openapi/pkg/common"
"k8s.io/kube-openapi/pkg/util"
)
const (
OpenAPIVersion = "2.0"
// TODO: Make this configurable.
extensionPrefix = "x-kubernetes-"
)
type openAPI struct {
config *common.Config
swagger *spec.Swagger
protocolList []string
definitions map[string]common.OpenAPIDefinition
}
// BuildOpenAPISpec builds OpenAPI spec given a list of webservices (containing routes) and common.Config to customize it.
func BuildOpenAPISpec(webServices []*restful.WebService, config *common.Config) (*spec.Swagger, error) {
o := openAPI{
config: config,
swagger: &spec.Swagger{
SwaggerProps: spec.SwaggerProps{
Swagger: OpenAPIVersion,
Definitions: spec.Definitions{},
Paths: &spec.Paths{Paths: map[string]spec.PathItem{}},
Info: config.Info,
},
},
}
err := o.init(webServices)
if err != nil {
return nil, err
}
return o.swagger, nil
}
func (o *openAPI) init(webServices []*restful.WebService) error {
if o.config.GetOperationIDAndTags == nil {
o.config.GetOperationIDAndTags = func(r *restful.Route) (string, []string, error) {
return r.Operation, nil, nil
}
}
if o.config.GetDefinitionName == nil {
o.config.GetDefinitionName = func(name string) (string, spec.Extensions) {
return name[strings.LastIndex(name, "/")+1:], nil
}
}
o.definitions = o.config.GetDefinitions(func(name string) spec.Ref {
defName, _ := o.config.GetDefinitionName(name)
return spec.MustCreateRef("#/definitions/" + common.EscapeJsonPointer(defName))
})
if o.config.CommonResponses == nil {
o.config.CommonResponses = map[int]spec.Response{}
}
err := o.buildPaths(webServices)
if err != nil {
return err
}
if o.config.SecurityDefinitions != nil {
o.swagger.SecurityDefinitions = *o.config.SecurityDefinitions
o.swagger.Security = o.config.DefaultSecurity
}
if o.config.PostProcessSpec != nil {
o.swagger, err = o.config.PostProcessSpec(o.swagger)
if err != nil {
return err
}
}
return nil
}
func getCanonicalizeTypeName(t reflect.Type) string {
if t.PkgPath() == "" {
return t.Name()
}
path := t.PkgPath()
if strings.Contains(path, "/vendor/") {
path = path[strings.Index(path, "/vendor/")+len("/vendor/"):]
}
return path + "." + t.Name()
}
func (o *openAPI) buildDefinitionRecursively(name string) error {
uniqueName, extensions := o.config.GetDefinitionName(name)
if _, ok := o.swagger.Definitions[uniqueName]; ok {
return nil
}
if item, ok := o.definitions[name]; ok {
schema := spec.Schema{
VendorExtensible: item.Schema.VendorExtensible,
SchemaProps: item.Schema.SchemaProps,
SwaggerSchemaProps: item.Schema.SwaggerSchemaProps,
}
if extensions != nil {
if schema.Extensions == nil {
schema.Extensions = spec.Extensions{}
}
for k, v := range extensions {
schema.Extensions[k] = v
}
}
o.swagger.Definitions[uniqueName] = schema
for _, v := range item.Dependencies {
if err := o.buildDefinitionRecursively(v); err != nil {
return err
}
}
} else {
return fmt.Errorf("cannot find model definition for %v. If you added a new type, you may need to add +k8s:openapi-gen=true to the package or type and run code-gen again", name)
}
return nil
}
// buildDefinitionForType build a definition for a given type and return a referable name to it's definition.
// This is the main function that keep track of definitions used in this spec and is depend on code generated
// by k8s.io/kubernetes/cmd/libs/go2idl/openapi-gen.
func (o *openAPI) buildDefinitionForType(sample interface{}) (string, error) {
t := reflect.TypeOf(sample)
if t.Kind() == reflect.Ptr {
t = t.Elem()
}
name := getCanonicalizeTypeName(t)
if err := o.buildDefinitionRecursively(name); err != nil {
return "", err
}
defName, _ := o.config.GetDefinitionName(name)
return "#/definitions/" + common.EscapeJsonPointer(defName), nil
}
// buildPaths builds OpenAPI paths using go-restful's web services.
func (o *openAPI) buildPaths(webServices []*restful.WebService) error {
pathsToIgnore := util.NewTrie(o.config.IgnorePrefixes)
duplicateOpId := make(map[string]string)
for _, w := range webServices {
rootPath := w.RootPath()
if pathsToIgnore.HasPrefix(rootPath) {
continue
}
commonParams, err := o.buildParameters(w.PathParameters())
if err != nil {
return err
}
for path, routes := range groupRoutesByPath(w.Routes()) {
// go-swagger has special variable definition {$NAME:*} that can only be
// used at the end of the path and it is not recognized by OpenAPI.
if strings.HasSuffix(path, ":*}") {
path = path[:len(path)-3] + "}"
}
if pathsToIgnore.HasPrefix(path) {
continue
}
// Aggregating common parameters make API spec (and generated clients) simpler
inPathCommonParamsMap, err := o.findCommonParameters(routes)
if err != nil {
return err
}
pathItem, exists := o.swagger.Paths.Paths[path]
if exists {
return fmt.Errorf("duplicate webservice route has been found for path: %v", path)
}
pathItem = spec.PathItem{
PathItemProps: spec.PathItemProps{
Parameters: make([]spec.Parameter, 0),
},
}
// add web services's parameters as well as any parameters appears in all ops, as common parameters
pathItem.Parameters = append(pathItem.Parameters, commonParams...)
for _, p := range inPathCommonParamsMap {
pathItem.Parameters = append(pathItem.Parameters, p)
}
sortParameters(pathItem.Parameters)
for _, route := range routes {
op, err := o.buildOperations(route, inPathCommonParamsMap)
sortParameters(op.Parameters)
if err != nil {
return err
}
dpath, exists := duplicateOpId[op.ID]
if exists {
return fmt.Errorf("duplicate Operation ID %v for path %v and %v", op.ID, dpath, path)
} else {
duplicateOpId[op.ID] = path
}
switch strings.ToUpper(route.Method) {
case "GET":
pathItem.Get = op
case "POST":
pathItem.Post = op
case "HEAD":
pathItem.Head = op
case "PUT":
pathItem.Put = op
case "DELETE":
pathItem.Delete = op
case "OPTIONS":
pathItem.Options = op
case "PATCH":
pathItem.Patch = op
}
}
o.swagger.Paths.Paths[path] = pathItem
}
}
return nil
}
// buildOperations builds operations for each webservice path
func (o *openAPI) buildOperations(route restful.Route, inPathCommonParamsMap map[interface{}]spec.Parameter) (ret *spec.Operation, err error) {
ret = &spec.Operation{
OperationProps: spec.OperationProps{
Description: route.Doc,
Consumes: route.Consumes,
Produces: route.Produces,
Schemes: o.config.ProtocolList,
Responses: &spec.Responses{
ResponsesProps: spec.ResponsesProps{
StatusCodeResponses: make(map[int]spec.Response),
},
},
},
}
for k, v := range route.Metadata {
if strings.HasPrefix(k, extensionPrefix) {
if ret.Extensions == nil {
ret.Extensions = spec.Extensions{}
}
ret.Extensions.Add(k, v)
}
}
if ret.ID, ret.Tags, err = o.config.GetOperationIDAndTags(&route); err != nil {
return ret, err
}
// Build responses
for _, resp := range route.ResponseErrors {
ret.Responses.StatusCodeResponses[resp.Code], err = o.buildResponse(resp.Model, resp.Message)
if err != nil {
return ret, err
}
}
// If there is no response but a write sample, assume that write sample is an http.StatusOK response.
if len(ret.Responses.StatusCodeResponses) == 0 && route.WriteSample != nil {
ret.Responses.StatusCodeResponses[http.StatusOK], err = o.buildResponse(route.WriteSample, "OK")
if err != nil {
return ret, err
}
}
for code, resp := range o.config.CommonResponses {
if _, exists := ret.Responses.StatusCodeResponses[code]; !exists {
ret.Responses.StatusCodeResponses[code] = resp
}
}
// If there is still no response, use default response provided.
if len(ret.Responses.StatusCodeResponses) == 0 {
ret.Responses.Default = o.config.DefaultResponse
}
// Build non-common Parameters
ret.Parameters = make([]spec.Parameter, 0)
for _, param := range route.ParameterDocs {
if _, isCommon := inPathCommonParamsMap[mapKeyFromParam(param)]; !isCommon {
openAPIParam, err := o.buildParameter(param.Data(), route.ReadSample)
if err != nil {
return ret, err
}
ret.Parameters = append(ret.Parameters, openAPIParam)
}
}
return ret, nil
}
func (o *openAPI) buildResponse(model interface{}, description string) (spec.Response, error) {
schema, err := o.toSchema(model)
if err != nil {
return spec.Response{}, err
}
return spec.Response{
ResponseProps: spec.ResponseProps{
Description: description,
Schema: schema,
},
}, nil
}
func (o *openAPI) findCommonParameters(routes []restful.Route) (map[interface{}]spec.Parameter, error) {
commonParamsMap := make(map[interface{}]spec.Parameter, 0)
paramOpsCountByName := make(map[interface{}]int, 0)
paramNameKindToDataMap := make(map[interface{}]restful.ParameterData, 0)
for _, route := range routes {
routeParamDuplicateMap := make(map[interface{}]bool)
s := ""
for _, param := range route.ParameterDocs {
m, _ := json.Marshal(param.Data())
s += string(m) + "\n"
key := mapKeyFromParam(param)
if routeParamDuplicateMap[key] {
msg, _ := json.Marshal(route.ParameterDocs)
return commonParamsMap, fmt.Errorf("duplicate parameter %v for route %v, %v", param.Data().Name, string(msg), s)
}
routeParamDuplicateMap[key] = true
paramOpsCountByName[key]++
paramNameKindToDataMap[key] = param.Data()
}
}
for key, count := range paramOpsCountByName {
paramData := paramNameKindToDataMap[key]
if count == len(routes) && paramData.Kind != restful.BodyParameterKind {
openAPIParam, err := o.buildParameter(paramData, nil)
if err != nil {
return commonParamsMap, err
}
commonParamsMap[key] = openAPIParam
}
}
return commonParamsMap, nil
}
func (o *openAPI) toSchema(model interface{}) (_ *spec.Schema, err error) {
if openAPIType, openAPIFormat := common.GetOpenAPITypeFormat(getCanonicalizeTypeName(reflect.TypeOf(model))); openAPIType != "" {
return &spec.Schema{
SchemaProps: spec.SchemaProps{
Type: []string{openAPIType},
Format: openAPIFormat,
},
}, nil
} else {
ref, err := o.buildDefinitionForType(model)
if err != nil {
return nil, err
}
return &spec.Schema{
SchemaProps: spec.SchemaProps{
Ref: spec.MustCreateRef(ref),
},
}, nil
}
}
func (o *openAPI) buildParameter(restParam restful.ParameterData, bodySample interface{}) (ret spec.Parameter, err error) {
ret = spec.Parameter{
ParamProps: spec.ParamProps{
Name: restParam.Name,
Description: restParam.Description,
Required: restParam.Required,
},
}
switch restParam.Kind {
case restful.BodyParameterKind:
if bodySample != nil {
ret.In = "body"
ret.Schema, err = o.toSchema(bodySample)
return ret, err
} else {
// There is not enough information in the body parameter to build the definition.
// Body parameter has a data type that is a short name but we need full package name
// of the type to create a definition.
return ret, fmt.Errorf("restful body parameters are not supported: %v", restParam.DataType)
}
case restful.PathParameterKind:
ret.In = "path"
if !restParam.Required {
return ret, fmt.Errorf("path parameters should be marked at required for parameter %v", restParam)
}
case restful.QueryParameterKind:
ret.In = "query"
case restful.HeaderParameterKind:
ret.In = "header"
case restful.FormParameterKind:
ret.In = "formData"
default:
return ret, fmt.Errorf("unknown restful operation kind : %v", restParam.Kind)
}
openAPIType, openAPIFormat := common.GetOpenAPITypeFormat(restParam.DataType)
if openAPIType == "" {
return ret, fmt.Errorf("non-body Restful parameter type should be a simple type, but got : %v", restParam.DataType)
}
ret.Type = openAPIType
ret.Format = openAPIFormat
ret.UniqueItems = !restParam.AllowMultiple
return ret, nil
}
func (o *openAPI) buildParameters(restParam []*restful.Parameter) (ret []spec.Parameter, err error) {
ret = make([]spec.Parameter, len(restParam))
for i, v := range restParam {
ret[i], err = o.buildParameter(v.Data(), nil)
if err != nil {
return ret, err
}
}
return ret, nil
}

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vendor/k8s.io/kube-openapi/pkg/builder/util.go generated vendored Normal file
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/*
Copyright 2016 The Kubernetes 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 builder
import (
"sort"
"github.com/emicklei/go-restful"
"github.com/go-openapi/spec"
)
type parameters []spec.Parameter
func (s parameters) Len() int { return len(s) }
func (s parameters) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
// byNameIn used in sorting parameters by Name and In fields.
type byNameIn struct {
parameters
}
func (s byNameIn) Less(i, j int) bool {
return s.parameters[i].Name < s.parameters[j].Name || (s.parameters[i].Name == s.parameters[j].Name && s.parameters[i].In < s.parameters[j].In)
}
// SortParameters sorts parameters by Name and In fields.
func sortParameters(p []spec.Parameter) {
sort.Sort(byNameIn{p})
}
func groupRoutesByPath(routes []restful.Route) map[string][]restful.Route {
pathToRoutes := make(map[string][]restful.Route)
for _, r := range routes {
pathToRoutes[r.Path] = append(pathToRoutes[r.Path], r)
}
return pathToRoutes
}
func mapKeyFromParam(param *restful.Parameter) interface{} {
return struct {
Name string
Kind int
}{
Name: param.Data().Name,
Kind: param.Data().Kind,
}
}

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/*
Copyright 2016 The Kubernetes 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 common
import (
"net/http"
"strings"
"github.com/emicklei/go-restful"
"github.com/go-openapi/spec"
)
// OpenAPIDefinition describes single type. Normally these definitions are auto-generated using gen-openapi.
type OpenAPIDefinition struct {
Schema spec.Schema
Dependencies []string
}
type ReferenceCallback func(path string) spec.Ref
// OpenAPIDefinitions is collection of all definitions.
type GetOpenAPIDefinitions func(ReferenceCallback) map[string]OpenAPIDefinition
// OpenAPIDefinitionGetter gets openAPI definitions for a given type. If a type implements this interface,
// the definition returned by it will be used, otherwise the auto-generated definitions will be used. See
// GetOpenAPITypeFormat for more information about trade-offs of using this interface or GetOpenAPITypeFormat method when
// possible.
type OpenAPIDefinitionGetter interface {
OpenAPIDefinition() *OpenAPIDefinition
}
type PathHandler interface {
Handle(path string, handler http.Handler)
}
// Config is set of configuration for openAPI spec generation.
type Config struct {
// List of supported protocols such as https, http, etc.
ProtocolList []string
// Info is general information about the API.
Info *spec.Info
// DefaultResponse will be used if an operation does not have any responses listed. It
// will show up as ... "responses" : {"default" : $DefaultResponse} in the spec.
DefaultResponse *spec.Response
// CommonResponses will be added as a response to all operation specs. This is a good place to add common
// responses such as authorization failed.
CommonResponses map[int]spec.Response
// List of webservice's path prefixes to ignore
IgnorePrefixes []string
// OpenAPIDefinitions should provide definition for all models used by routes. Failure to provide this map
// or any of the models will result in spec generation failure.
GetDefinitions GetOpenAPIDefinitions
// GetOperationIDAndTags returns operation id and tags for a restful route. It is an optional function to customize operation IDs.
GetOperationIDAndTags func(r *restful.Route) (string, []string, error)
// GetDefinitionName returns a friendly name for a definition base on the serving path. parameter `name` is the full name of the definition.
// It is an optional function to customize model names.
GetDefinitionName func(name string) (string, spec.Extensions)
// PostProcessSpec runs after the spec is ready to serve. It allows a final modification to the spec before serving.
PostProcessSpec func(*spec.Swagger) (*spec.Swagger, error)
// SecurityDefinitions is list of all security definitions for OpenAPI service. If this is not nil, the user of config
// is responsible to provide DefaultSecurity and (maybe) add unauthorized response to CommonResponses.
SecurityDefinitions *spec.SecurityDefinitions
// DefaultSecurity for all operations. This will pass as spec.SwaggerProps.Security to OpenAPI.
// For most cases, this will be list of acceptable definitions in SecurityDefinitions.
DefaultSecurity []map[string][]string
}
// This function is a reference for converting go (or any custom type) to a simple open API type,format pair. There are
// two ways to customize spec for a type. If you add it here, a type will be converted to a simple type and the type
// comment (the comment that is added before type definition) will be lost. The spec will still have the property
// comment. The second way is to implement OpenAPIDefinitionGetter interface. That function can customize the spec (so
// the spec does not need to be simple type,format) or can even return a simple type,format (e.g. IntOrString). For simple
// type formats, the benefit of adding OpenAPIDefinitionGetter interface is to keep both type and property documentation.
// Example:
// type Sample struct {
// ...
// // port of the server
// port IntOrString
// ...
// }
// // IntOrString documentation...
// type IntOrString { ... }
//
// Adding IntOrString to this function:
// "port" : {
// format: "string",
// type: "int-or-string",
// Description: "port of the server"
// }
//
// Implement OpenAPIDefinitionGetter for IntOrString:
//
// "port" : {
// $Ref: "#/definitions/IntOrString"
// Description: "port of the server"
// }
// ...
// definitions:
// {
// "IntOrString": {
// format: "string",
// type: "int-or-string",
// Description: "IntOrString documentation..." // new
// }
// }
//
func GetOpenAPITypeFormat(typeName string) (string, string) {
schemaTypeFormatMap := map[string][]string{
"uint": {"integer", "int32"},
"uint8": {"integer", "byte"},
"uint16": {"integer", "int32"},
"uint32": {"integer", "int64"},
"uint64": {"integer", "int64"},
"int": {"integer", "int32"},
"int8": {"integer", "byte"},
"int16": {"integer", "int32"},
"int32": {"integer", "int32"},
"int64": {"integer", "int64"},
"byte": {"integer", "byte"},
"float64": {"number", "double"},
"float32": {"number", "float"},
"bool": {"boolean", ""},
"time.Time": {"string", "date-time"},
"string": {"string", ""},
"integer": {"integer", ""},
"number": {"number", ""},
"boolean": {"boolean", ""},
"[]byte": {"string", "byte"}, // base64 encoded characters
"interface{}": {"object", ""},
}
mapped, ok := schemaTypeFormatMap[typeName]
if !ok {
return "", ""
}
return mapped[0], mapped[1]
}
func EscapeJsonPointer(p string) string {
// Escaping reference name using rfc6901
p = strings.Replace(p, "~", "~0", -1)
p = strings.Replace(p, "/", "~1", -1)
return p
}

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/*
Copyright 2016 The Kubernetes 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 common holds shared code and types between open API code
// generator and spec generator.
package common

15
vendor/k8s.io/kube-openapi/pkg/generators/README generated vendored Normal file
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# Generate OpenAPI definitions
- To generate definition for a specific type or package add "+k8s:openapi-gen=true" tag to the type/package comment lines.
- To exclude a type or a member from a tagged package/type, add "+k8s:openapi-gen=false" tag to the comment lines.
# OpenAPI Extensions
OpenAPI spec can have extensions on types. To define one or more extensions on a type or its member
add `+k8s:openapi-gen=x-kubernetes-$NAME:`$VALUE`` to the comment lines before type/member. A type/member can
have multiple extensions. The rest of the line in the comment will be used as $VALUE so there is no need to
escape or quote the value string. Extensions can be used to pass more information to client generators or
documentation generators. For example a type might have a friendly name to be displayed in documentation or
being used in a client's fluent interface.
TODO(mehdy): Make k8s:openapi-gen a parameter to the generator now that OpenAPI has its own repo.

612
vendor/k8s.io/kube-openapi/pkg/generators/openapi.go generated vendored Normal file
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/*
Copyright 2016 The Kubernetes 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 generators
import (
"bytes"
"fmt"
"io"
"path/filepath"
"reflect"
"sort"
"strings"
"k8s.io/gengo/args"
"k8s.io/gengo/generator"
"k8s.io/gengo/namer"
"k8s.io/gengo/types"
openapi "k8s.io/kube-openapi/pkg/common"
"github.com/golang/glog"
)
// This is the comment tag that carries parameters for open API generation.
const tagName = "k8s:openapi-gen"
const tagOptional = "optional"
// Known values for the tag.
const (
tagValueTrue = "true"
tagValueFalse = "false"
tagExtensionPrefix = "x-kubernetes-"
tagPatchStrategy = "patchStrategy"
tagPatchMergeKey = "patchMergeKey"
patchStrategyExtensionName = "patch-strategy"
patchMergeKeyExtensionName = "patch-merge-key"
)
func getOpenAPITagValue(comments []string) []string {
return types.ExtractCommentTags("+", comments)[tagName]
}
func getSingleTagsValue(comments []string, tag string) (string, error) {
tags, ok := types.ExtractCommentTags("+", comments)[tag]
if !ok || len(tags) == 0 {
return "", nil
}
if len(tags) > 1 {
return "", fmt.Errorf("multiple values are not allowed for tag %s", tag)
}
return tags[0], nil
}
func hasOpenAPITagValue(comments []string, value string) bool {
tagValues := getOpenAPITagValue(comments)
for _, val := range tagValues {
if val == value {
return true
}
}
return false
}
// hasOptionalTag returns true if the member has +optional in its comments or
// omitempty in its json tags.
func hasOptionalTag(m *types.Member) bool {
hasOptionalCommentTag := types.ExtractCommentTags(
"+", m.CommentLines)[tagOptional] != nil
hasOptionalJsonTag := strings.Contains(
reflect.StructTag(m.Tags).Get("json"), "omitempty")
return hasOptionalCommentTag || hasOptionalJsonTag
}
type identityNamer struct{}
func (_ identityNamer) Name(t *types.Type) string {
return t.Name.String()
}
var _ namer.Namer = identityNamer{}
// NameSystems returns the name system used by the generators in this package.
func NameSystems() namer.NameSystems {
return namer.NameSystems{
"raw": namer.NewRawNamer("", nil),
"sorting_namer": identityNamer{},
}
}
// DefaultNameSystem returns the default name system for ordering the types to be
// processed by the generators in this package.
func DefaultNameSystem() string {
return "sorting_namer"
}
func Packages(context *generator.Context, arguments *args.GeneratorArgs) generator.Packages {
boilerplate, err := arguments.LoadGoBoilerplate()
if err != nil {
glog.Fatalf("Failed loading boilerplate: %v", err)
}
header := append([]byte(fmt.Sprintf("// +build !%s\n\n", arguments.GeneratedBuildTag)), boilerplate...)
header = append(header, []byte(
`
// This file was autogenerated by openapi-gen. Do not edit it manually!
`)...)
if err := context.AddDir(arguments.OutputPackagePath); err != nil {
glog.Fatalf("Failed to load output package: %v", err)
}
pkg := context.Universe[arguments.OutputPackagePath]
if pkg == nil {
glog.Fatalf("Got nil output package: %v", err)
}
return generator.Packages{
&generator.DefaultPackage{
PackageName: strings.Split(filepath.Base(pkg.Path), ".")[0],
PackagePath: pkg.Path,
HeaderText: header,
GeneratorFunc: func(c *generator.Context) (generators []generator.Generator) {
return []generator.Generator{NewOpenAPIGen(arguments.OutputFileBaseName, pkg, context)}
},
FilterFunc: func(c *generator.Context, t *types.Type) bool {
// There is a conflict between this codegen and codecgen, we should avoid types generated for codecgen
if strings.HasPrefix(t.Name.Name, "codecSelfer") {
return false
}
pkg := context.Universe.Package(t.Name.Package)
if hasOpenAPITagValue(pkg.Comments, tagValueTrue) {
return !hasOpenAPITagValue(t.CommentLines, tagValueFalse)
}
if hasOpenAPITagValue(t.CommentLines, tagValueTrue) {
return true
}
return false
},
},
}
}
const (
specPackagePath = "github.com/go-openapi/spec"
openAPICommonPackagePath = "k8s.io/kube-openapi/pkg/common"
)
// openApiGen produces a file with auto-generated OpenAPI functions.
type openAPIGen struct {
generator.DefaultGen
// TargetPackage is the package that will get GetOpenAPIDefinitions function returns all open API definitions.
targetPackage *types.Package
imports namer.ImportTracker
context *generator.Context
}
func NewOpenAPIGen(sanitizedName string, targetPackage *types.Package, context *generator.Context) generator.Generator {
return &openAPIGen{
DefaultGen: generator.DefaultGen{
OptionalName: sanitizedName,
},
imports: generator.NewImportTracker(),
targetPackage: targetPackage,
context: context,
}
}
func (g *openAPIGen) Namers(c *generator.Context) namer.NameSystems {
// Have the raw namer for this file track what it imports.
return namer.NameSystems{
"raw": namer.NewRawNamer(g.targetPackage.Path, g.imports),
}
}
func (g *openAPIGen) Filter(c *generator.Context, t *types.Type) bool {
// There is a conflict between this codegen and codecgen, we should avoid types generated for codecgen
if strings.HasPrefix(t.Name.Name, "codecSelfer") {
return false
}
return true
}
func (g *openAPIGen) isOtherPackage(pkg string) bool {
if pkg == g.targetPackage.Path {
return false
}
if strings.HasSuffix(pkg, "\""+g.targetPackage.Path+"\"") {
return false
}
return true
}
func (g *openAPIGen) Imports(c *generator.Context) []string {
importLines := []string{}
for _, singleImport := range g.imports.ImportLines() {
importLines = append(importLines, singleImport)
}
return importLines
}
func argsFromType(t *types.Type) generator.Args {
return generator.Args{
"type": t,
"ReferenceCallback": types.Ref(openAPICommonPackagePath, "ReferenceCallback"),
"OpenAPIDefinition": types.Ref(openAPICommonPackagePath, "OpenAPIDefinition"),
"SpecSchemaType": types.Ref(specPackagePath, "Schema"),
}
}
func (g *openAPIGen) Init(c *generator.Context, w io.Writer) error {
sw := generator.NewSnippetWriter(w, c, "$", "$")
sw.Do("func GetOpenAPIDefinitions(ref $.ReferenceCallback|raw$) map[string]$.OpenAPIDefinition|raw$ {\n", argsFromType(nil))
sw.Do("return map[string]$.OpenAPIDefinition|raw${\n", argsFromType(nil))
return sw.Error()
}
func (g *openAPIGen) Finalize(c *generator.Context, w io.Writer) error {
sw := generator.NewSnippetWriter(w, c, "$", "$")
sw.Do("}\n", nil)
sw.Do("}\n", nil)
return sw.Error()
}
func (g *openAPIGen) GenerateType(c *generator.Context, t *types.Type, w io.Writer) error {
glog.V(5).Infof("generating for type %v", t)
sw := generator.NewSnippetWriter(w, c, "$", "$")
err := newOpenAPITypeWriter(sw).generate(t)
if err != nil {
return err
}
return sw.Error()
}
func getJsonTags(m *types.Member) []string {
jsonTag := reflect.StructTag(m.Tags).Get("json")
if jsonTag == "" {
return []string{}
}
return strings.Split(jsonTag, ",")
}
func getPatchTags(m *types.Member) (string, string) {
return reflect.StructTag(m.Tags).Get(tagPatchMergeKey), reflect.StructTag(m.Tags).Get(tagPatchStrategy)
}
func getReferableName(m *types.Member) string {
jsonTags := getJsonTags(m)
if len(jsonTags) > 0 {
if jsonTags[0] == "-" {
return ""
} else {
return jsonTags[0]
}
} else {
return m.Name
}
}
func shouldInlineMembers(m *types.Member) bool {
jsonTags := getJsonTags(m)
return len(jsonTags) > 1 && jsonTags[1] == "inline"
}
type openAPITypeWriter struct {
*generator.SnippetWriter
refTypes map[string]*types.Type
GetDefinitionInterface *types.Type
}
func newOpenAPITypeWriter(sw *generator.SnippetWriter) openAPITypeWriter {
return openAPITypeWriter{
SnippetWriter: sw,
refTypes: map[string]*types.Type{},
}
}
func hasOpenAPIDefinitionMethod(t *types.Type) bool {
for mn, mt := range t.Methods {
if mn != "OpenAPIDefinition" {
continue
}
if len(mt.Signature.Parameters) != 0 || len(mt.Signature.Results) != 1 {
return false
}
r := mt.Signature.Results[0]
if r.Name.Name != "OpenAPIDefinition" || r.Name.Package != openAPICommonPackagePath {
return false
}
return true
}
return false
}
// typeShortName returns short package name (e.g. the name x appears in package x definition) dot type name.
func typeShortName(t *types.Type) string {
return filepath.Base(t.Name.Package) + "." + t.Name.Name
}
func (g openAPITypeWriter) generateMembers(t *types.Type, required []string) ([]string, error) {
var err error
for _, m := range t.Members {
if hasOpenAPITagValue(m.CommentLines, tagValueFalse) {
continue
}
if shouldInlineMembers(&m) {
required, err = g.generateMembers(m.Type, required)
if err != nil {
return required, err
}
continue
}
name := getReferableName(&m)
if name == "" {
continue
}
if !hasOptionalTag(&m) {
required = append(required, name)
}
if err = g.generateProperty(&m, t); err != nil {
return required, err
}
}
return required, nil
}
func (g openAPITypeWriter) generate(t *types.Type) error {
// Only generate for struct type and ignore the rest
switch t.Kind {
case types.Struct:
args := argsFromType(t)
g.Do("\"$.$\": ", t.Name)
if hasOpenAPIDefinitionMethod(t) {
g.Do("$.type|raw${}.OpenAPIDefinition(),\n", args)
return nil
}
g.Do("{\nSchema: spec.Schema{\nSchemaProps: spec.SchemaProps{\n", nil)
g.generateDescription(t.CommentLines)
g.Do("Properties: map[string]$.SpecSchemaType|raw${\n", args)
required, err := g.generateMembers(t, []string{})
if err != nil {
return err
}
g.Do("},\n", nil)
if len(required) > 0 {
g.Do("Required: []string{\"$.$\"},\n", strings.Join(required, "\",\""))
}
g.Do("},\n", nil)
if err := g.generateExtensions(t.CommentLines); err != nil {
return err
}
g.Do("},\n", nil)
g.Do("Dependencies: []string{\n", args)
// Map order is undefined, sort them or we may get a different file generated each time.
keys := []string{}
for k := range g.refTypes {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
v := g.refTypes[k]
if t, _ := openapi.GetOpenAPITypeFormat(v.String()); t != "" {
// This is a known type, we do not need a reference to it
// Will eliminate special case of time.Time
continue
}
g.Do("\"$.$\",", k)
}
g.Do("},\n},\n", nil)
}
return nil
}
func (g openAPITypeWriter) generateExtensions(CommentLines []string) error {
tagValues := getOpenAPITagValue(CommentLines)
type NameValue struct {
Name, Value string
}
extensions := []NameValue{}
for _, val := range tagValues {
if strings.HasPrefix(val, tagExtensionPrefix) {
parts := strings.SplitN(val, ":", 2)
if len(parts) != 2 {
return fmt.Errorf("invalid extension value: %v", val)
}
extensions = append(extensions, NameValue{parts[0], parts[1]})
}
}
patchMergeKeyTag, err := getSingleTagsValue(CommentLines, tagPatchMergeKey)
if err != nil {
return err
}
if len(patchMergeKeyTag) > 0 {
extensions = append(extensions, NameValue{tagExtensionPrefix + patchMergeKeyExtensionName, patchMergeKeyTag})
}
patchStrategyTag, err := getSingleTagsValue(CommentLines, tagPatchStrategy)
if err != nil {
return err
}
if len(patchStrategyTag) > 0 {
extensions = append(extensions, NameValue{tagExtensionPrefix + patchStrategyExtensionName, patchStrategyTag})
}
if len(extensions) == 0 {
return nil
}
g.Do("VendorExtensible: spec.VendorExtensible{\nExtensions: spec.Extensions{\n", nil)
for _, extension := range extensions {
g.Do("\"$.$\": ", extension.Name)
g.Do("\"$.$\",\n", extension.Value)
}
g.Do("},\n},\n", nil)
return nil
}
// TODO(#44005): Move this validation outside of this generator (probably to policy verifier)
func (g openAPITypeWriter) validatePatchTags(m *types.Member, parent *types.Type) error {
patchMergeKeyStructTag, patchStrategyStructTag := getPatchTags(m)
patchMergeKeyCommentTag, err := getSingleTagsValue(m.CommentLines, tagPatchMergeKey)
if err != nil {
return err
}
patchStrategyCommentTag, err := getSingleTagsValue(m.CommentLines, tagPatchStrategy)
if err != nil {
return err
}
if patchMergeKeyStructTag != patchMergeKeyCommentTag {
return fmt.Errorf("patchMergeKey in comment and struct tags should match for member (%s) of (%s)",
m.Name, parent.Name.String())
}
if patchStrategyStructTag != patchStrategyCommentTag {
return fmt.Errorf("patchStrategy in comment and struct tags should match for member (%s) of (%s)",
m.Name, parent.Name.String())
}
return nil
}
func (g openAPITypeWriter) generateDescription(CommentLines []string) {
var buffer bytes.Buffer
delPrevChar := func() {
if buffer.Len() > 0 {
buffer.Truncate(buffer.Len() - 1) // Delete the last " " or "\n"
}
}
for _, line := range CommentLines {
// Ignore all lines after ---
if line == "---" {
break
}
line = strings.TrimRight(line, " ")
leading := strings.TrimLeft(line, " ")
switch {
case len(line) == 0: // Keep paragraphs
delPrevChar()
buffer.WriteString("\n\n")
case strings.HasPrefix(leading, "TODO"): // Ignore one line TODOs
case strings.HasPrefix(leading, "+"): // Ignore instructions to go2idl
default:
if strings.HasPrefix(line, " ") || strings.HasPrefix(line, "\t") {
delPrevChar()
line = "\n" + line + "\n" // Replace it with newline. This is useful when we have a line with: "Example:\n\tJSON-someting..."
} else {
line += " "
}
buffer.WriteString(line)
}
}
postDoc := strings.TrimRight(buffer.String(), "\n")
postDoc = strings.Replace(postDoc, "\\\"", "\"", -1) // replace user's \" to "
postDoc = strings.Replace(postDoc, "\"", "\\\"", -1) // Escape "
postDoc = strings.Replace(postDoc, "\n", "\\n", -1)
postDoc = strings.Replace(postDoc, "\t", "\\t", -1)
postDoc = strings.Trim(postDoc, " ")
if postDoc != "" {
g.Do("Description: \"$.$\",\n", postDoc)
}
}
func (g openAPITypeWriter) generateProperty(m *types.Member, parent *types.Type) error {
name := getReferableName(m)
if name == "" {
return nil
}
if err := g.validatePatchTags(m, parent); err != nil {
return err
}
g.Do("\"$.$\": {\n", name)
if err := g.generateExtensions(m.CommentLines); err != nil {
return err
}
g.Do("SchemaProps: spec.SchemaProps{\n", nil)
g.generateDescription(m.CommentLines)
jsonTags := getJsonTags(m)
if len(jsonTags) > 1 && jsonTags[1] == "string" {
g.generateSimpleProperty("string", "")
g.Do("},\n},\n", nil)
return nil
}
t := resolveAliasAndPtrType(m.Type)
// If we can get a openAPI type and format for this type, we consider it to be simple property
typeString, format := openapi.GetOpenAPITypeFormat(t.String())
if typeString != "" {
g.generateSimpleProperty(typeString, format)
g.Do("},\n},\n", nil)
return nil
}
switch t.Kind {
case types.Builtin:
return fmt.Errorf("please add type %v to getOpenAPITypeFormat function", t)
case types.Map:
if err := g.generateMapProperty(t); err != nil {
return err
}
case types.Slice, types.Array:
if err := g.generateSliceProperty(t); err != nil {
return err
}
case types.Struct, types.Interface:
g.generateReferenceProperty(t)
default:
return fmt.Errorf("cannot generate spec for type %v", t)
}
g.Do("},\n},\n", nil)
return g.Error()
}
func (g openAPITypeWriter) generateSimpleProperty(typeString, format string) {
g.Do("Type: []string{\"$.$\"},\n", typeString)
g.Do("Format: \"$.$\",\n", format)
}
func (g openAPITypeWriter) generateReferenceProperty(t *types.Type) {
g.refTypes[t.Name.String()] = t
g.Do("Ref: ref(\"$.$\"),\n", t.Name.String())
}
func resolveAliasAndPtrType(t *types.Type) *types.Type {
var prev *types.Type
for prev != t {
prev = t
if t.Kind == types.Alias {
t = t.Underlying
}
if t.Kind == types.Pointer {
t = t.Elem
}
}
return t
}
func (g openAPITypeWriter) generateMapProperty(t *types.Type) error {
keyType := resolveAliasAndPtrType(t.Key)
elemType := resolveAliasAndPtrType(t.Elem)
// According to OpenAPI examples, only map from string is supported
if keyType.Name.Name != "string" {
return fmt.Errorf("map with non-string keys are not supported by OpenAPI in %v", t)
}
g.Do("Type: []string{\"object\"},\n", nil)
g.Do("AdditionalProperties: &spec.SchemaOrBool{\nSchema: &spec.Schema{\nSchemaProps: spec.SchemaProps{\n", nil)
typeString, format := openapi.GetOpenAPITypeFormat(elemType.String())
if typeString != "" {
g.generateSimpleProperty(typeString, format)
g.Do("},\n},\n},\n", nil)
return nil
}
switch elemType.Kind {
case types.Builtin:
return fmt.Errorf("please add type %v to getOpenAPITypeFormat function", elemType)
case types.Struct:
g.generateReferenceProperty(elemType)
case types.Slice, types.Array:
g.generateSliceProperty(elemType)
default:
return fmt.Errorf("map Element kind %v is not supported in %v", elemType.Kind, t.Name)
}
g.Do("},\n},\n},\n", nil)
return nil
}
func (g openAPITypeWriter) generateSliceProperty(t *types.Type) error {
elemType := resolveAliasAndPtrType(t.Elem)
g.Do("Type: []string{\"array\"},\n", nil)
g.Do("Items: &spec.SchemaOrArray{\nSchema: &spec.Schema{\nSchemaProps: spec.SchemaProps{\n", nil)
typeString, format := openapi.GetOpenAPITypeFormat(elemType.String())
if typeString != "" {
g.generateSimpleProperty(typeString, format)
g.Do("},\n},\n},\n", nil)
return nil
}
switch elemType.Kind {
case types.Builtin:
return fmt.Errorf("please add type %v to getOpenAPITypeFormat function", elemType)
case types.Struct:
g.generateReferenceProperty(elemType)
default:
return fmt.Errorf("slice Element kind %v is not supported in %v", elemType.Kind, t)
}
g.Do("},\n},\n},\n", nil)
return nil
}

204
vendor/k8s.io/kube-openapi/pkg/handler/handler.go generated vendored Normal file
View File

@@ -0,0 +1,204 @@
/*
Copyright 2017 The Kubernetes 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 handler
import (
"bytes"
"compress/gzip"
"crypto/sha512"
"encoding/json"
"fmt"
"gopkg.in/yaml.v2"
"mime"
"net/http"
"strings"
"sync"
"time"
"github.com/NYTimes/gziphandler"
"github.com/emicklei/go-restful"
"github.com/go-openapi/spec"
"github.com/golang/protobuf/proto"
"github.com/googleapis/gnostic/OpenAPIv2"
"github.com/googleapis/gnostic/compiler"
"k8s.io/kube-openapi/pkg/builder"
"k8s.io/kube-openapi/pkg/common"
)
const (
jsonExt = ".json"
mimeJson = "application/json"
// TODO(mehdy): change @68f4ded to a version tag when gnostic add version tags.
mimePb = "application/com.github.googleapis.gnostic.OpenAPIv2@68f4ded+protobuf"
mimePbGz = "application/x-gzip"
)
// OpenAPIService is the service responsible for serving OpenAPI spec. It has
// the ability to safely change the spec while serving it.
type OpenAPIService struct {
// rwMutex protects All members of this service.
rwMutex sync.RWMutex
orgSpec *spec.Swagger
lastModified time.Time
specBytes []byte
specPb []byte
specPbGz []byte
specBytesETag string
specPbETag string
specPbGzETag string
}
func init() {
mime.AddExtensionType(".json", mimeJson)
mime.AddExtensionType(".pb-v1", mimePb)
mime.AddExtensionType(".gz", mimePbGz)
}
func computeETag(data []byte) string {
return fmt.Sprintf("\"%X\"", sha512.Sum512(data))
}
// BuildAndRegisterOpenAPIService builds the spec and registers a handler to provides access to it.
// Use this method if your OpenAPI spec is static. If you want to update the spec, use BuildOpenAPISpec then RegisterOpenAPIService.
func BuildAndRegisterOpenAPIService(servePath string, webServices []*restful.WebService, config *common.Config, handler common.PathHandler) (*OpenAPIService, error) {
spec, err := builder.BuildOpenAPISpec(webServices, config)
if err != nil {
return nil, err
}
return RegisterOpenAPIService(spec, servePath, handler)
}
// RegisterOpenAPIService registers a handler to provides access to provided swagger spec.
// Note: servePath should end with ".json" as the RegisterOpenAPIService assume it is serving a
// json file and will also serve .pb and .gz files.
func RegisterOpenAPIService(openapiSpec *spec.Swagger, servePath string, handler common.PathHandler) (*OpenAPIService, error) {
if !strings.HasSuffix(servePath, jsonExt) {
return nil, fmt.Errorf("serving path must end with \"%s\"", jsonExt)
}
servePathBase := strings.TrimSuffix(servePath, jsonExt)
o := OpenAPIService{}
if err := o.UpdateSpec(openapiSpec); err != nil {
return nil, err
}
type fileInfo struct {
ext string
getDataAndETag func() ([]byte, string, time.Time)
}
files := []fileInfo{
{".json", o.getSwaggerBytes},
{"-2.0.0.json", o.getSwaggerBytes},
{"-2.0.0.pb-v1", o.getSwaggerPbBytes},
{"-2.0.0.pb-v1.gz", o.getSwaggerPbGzBytes},
}
for _, file := range files {
path := servePathBase + file.ext
getDataAndETag := file.getDataAndETag
handler.Handle(path, gziphandler.GzipHandler(http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
data, etag, lastModified := getDataAndETag()
w.Header().Set("Etag", etag)
// ServeContent will take care of caching using eTag.
http.ServeContent(w, r, path, lastModified, bytes.NewReader(data))
}),
))
}
return &o, nil
}
func (o *OpenAPIService) getSwaggerBytes() ([]byte, string, time.Time) {
o.rwMutex.RLock()
defer o.rwMutex.RUnlock()
return o.specBytes, o.specBytesETag, o.lastModified
}
func (o *OpenAPIService) getSwaggerPbBytes() ([]byte, string, time.Time) {
o.rwMutex.RLock()
defer o.rwMutex.RUnlock()
return o.specPb, o.specPbETag, o.lastModified
}
func (o *OpenAPIService) getSwaggerPbGzBytes() ([]byte, string, time.Time) {
o.rwMutex.RLock()
defer o.rwMutex.RUnlock()
return o.specPbGz, o.specPbGzETag, o.lastModified
}
func (o *OpenAPIService) UpdateSpec(openapiSpec *spec.Swagger) (err error) {
orgSpec := openapiSpec
specBytes, err := json.MarshalIndent(openapiSpec, " ", " ")
if err != nil {
return err
}
specPb, err := toProtoBinary(specBytes)
if err != nil {
return err
}
specPbGz := toGzip(specPb)
specBytesETag := computeETag(specBytes)
specPbETag := computeETag(specPb)
specPbGzETag := computeETag(specPbGz)
lastModified := time.Now()
o.rwMutex.Lock()
defer o.rwMutex.Unlock()
o.orgSpec = orgSpec
o.specBytes = specBytes
o.specPb = specPb
o.specPbGz = specPbGz
o.specBytesETag = specBytesETag
o.specPbETag = specPbETag
o.specPbGzETag = specPbGzETag
o.lastModified = lastModified
return nil
}
func toProtoBinary(spec []byte) ([]byte, error) {
var info yaml.MapSlice
err := yaml.Unmarshal(spec, &info)
if err != nil {
return nil, err
}
document, err := openapi_v2.NewDocument(info, compiler.NewContext("$root", nil))
if err != nil {
return nil, err
}
return proto.Marshal(document)
}
func toGzip(data []byte) []byte {
var buf bytes.Buffer
zw := gzip.NewWriter(&buf)
zw.Write(data)
zw.Close()
return buf.Bytes()
}

79
vendor/k8s.io/kube-openapi/pkg/util/trie.go generated vendored Normal file
View File

@@ -0,0 +1,79 @@
/*
Copyright 2016 The Kubernetes 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 util
// A simple trie implementation with Add and HasPrefix methods only.
type Trie struct {
children map[byte]*Trie
wordTail bool
word string
}
// NewTrie creates a Trie and add all strings in the provided list to it.
func NewTrie(list []string) Trie {
ret := Trie{
children: make(map[byte]*Trie),
wordTail: false,
}
for _, v := range list {
ret.Add(v)
}
return ret
}
// Add adds a word to this trie
func (t *Trie) Add(v string) {
root := t
for _, b := range []byte(v) {
child, exists := root.children[b]
if !exists {
child = &Trie{
children: make(map[byte]*Trie),
wordTail: false,
}
root.children[b] = child
}
root = child
}
root.wordTail = true
root.word = v
}
// HasPrefix returns true of v has any of the prefixes stored in this trie.
func (t *Trie) HasPrefix(v string) bool {
_, has := t.GetPrefix(v)
return has
}
// GetPrefix is like HasPrefix but return the prefix in case of match or empty string otherwise.
func (t *Trie) GetPrefix(v string) (string, bool) {
root := t
if root.wordTail {
return root.word, true
}
for _, b := range []byte(v) {
child, exists := root.children[b]
if !exists {
return "", false
}
if child.wordTail {
return child.word, true
}
root = child
}
return "", false
}