diff options
Diffstat (limited to 'vendor/github.com/go-openapi/spec/expander.go')
-rw-r--r-- | vendor/github.com/go-openapi/spec/expander.go | 626 |
1 files changed, 0 insertions, 626 deletions
diff --git a/vendor/github.com/go-openapi/spec/expander.go b/vendor/github.com/go-openapi/spec/expander.go deleted file mode 100644 index eb1490b05..000000000 --- a/vendor/github.com/go-openapi/spec/expander.go +++ /dev/null @@ -1,626 +0,0 @@ -// 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" - "net/url" - "reflect" - "strings" - "sync" - - "github.com/go-openapi/jsonpointer" - "github.com/go-openapi/swag" -) - -// ResolutionCache a cache for resolving urls -type ResolutionCache interface { - Get(string) (interface{}, bool) - Set(string, interface{}) -} - -type simpleCache struct { - lock sync.Mutex - store map[string]interface{} -} - -var resCache = initResolutionCache() - -func initResolutionCache() ResolutionCache { - return &simpleCache{store: map[string]interface{}{ - "http://swagger.io/v2/schema.json": MustLoadSwagger20Schema(), - "http://json-schema.org/draft-04/schema": MustLoadJSONSchemaDraft04(), - }} -} - -func (s *simpleCache) Get(uri string) (interface{}, bool) { - s.lock.Lock() - v, ok := s.store[uri] - s.lock.Unlock() - return v, ok -} - -func (s *simpleCache) Set(uri string, data interface{}) { - s.lock.Lock() - s.store[uri] = data - s.lock.Unlock() -} - -// ResolveRef resolves a reference against a context root -func ResolveRef(root interface{}, ref *Ref) (*Schema, error) { - resolver, err := defaultSchemaLoader(root, nil, nil) - if err != nil { - return nil, err - } - - result := new(Schema) - if err := resolver.Resolve(ref, result); err != nil { - return nil, err - } - return result, nil -} - -// ResolveParameter resolves a paramter reference against a context root -func ResolveParameter(root interface{}, ref Ref) (*Parameter, error) { - resolver, err := defaultSchemaLoader(root, nil, nil) - if err != nil { - return nil, err - } - - result := new(Parameter) - if err := resolver.Resolve(&ref, result); err != nil { - return nil, err - } - return result, nil -} - -// ResolveResponse resolves response a reference against a context root -func ResolveResponse(root interface{}, ref Ref) (*Response, error) { - resolver, err := defaultSchemaLoader(root, nil, nil) - if err != nil { - return nil, err - } - - result := new(Response) - if err := resolver.Resolve(&ref, result); err != nil { - return nil, err - } - return result, nil -} - -type schemaLoader struct { - loadingRef *Ref - startingRef *Ref - currentRef *Ref - root interface{} - cache ResolutionCache - loadDoc func(string) (json.RawMessage, error) -} - -var idPtr, _ = jsonpointer.New("/id") -var schemaPtr, _ = jsonpointer.New("/$schema") -var refPtr, _ = jsonpointer.New("/$ref") - -func defaultSchemaLoader(root interface{}, ref *Ref, cache ResolutionCache) (*schemaLoader, error) { - if cache == nil { - cache = resCache - } - - var ptr *jsonpointer.Pointer - if ref != nil { - ptr = ref.GetPointer() - } - - currentRef := nextRef(root, ref, ptr) - - return &schemaLoader{ - root: root, - loadingRef: ref, - startingRef: ref, - cache: cache, - loadDoc: func(path string) (json.RawMessage, error) { - data, err := swag.LoadFromFileOrHTTP(path) - if err != nil { - return nil, err - } - return json.RawMessage(data), nil - }, - currentRef: currentRef, - }, nil -} - -func idFromNode(node interface{}) (*Ref, error) { - if idValue, _, err := idPtr.Get(node); err == nil { - if refStr, ok := idValue.(string); ok && refStr != "" { - idRef, err := NewRef(refStr) - if err != nil { - return nil, err - } - return &idRef, nil - } - } - return nil, nil -} - -func nextRef(startingNode interface{}, startingRef *Ref, ptr *jsonpointer.Pointer) *Ref { - if startingRef == nil { - return nil - } - if ptr == nil { - return startingRef - } - - ret := startingRef - var idRef *Ref - node := startingNode - - for _, tok := range ptr.DecodedTokens() { - node, _, _ = jsonpointer.GetForToken(node, tok) - if node == nil { - break - } - - idRef, _ = idFromNode(node) - if idRef != nil { - nw, err := ret.Inherits(*idRef) - if err != nil { - break - } - ret = nw - } - - refRef, _, _ := refPtr.Get(node) - if refRef != nil { - rf, _ := NewRef(refRef.(string)) - nw, err := ret.Inherits(rf) - if err != nil { - break - } - ret = nw - } - - } - return ret -} - -func (r *schemaLoader) resolveRef(currentRef, ref *Ref, node, target interface{}) error { - tgt := reflect.ValueOf(target) - if tgt.Kind() != reflect.Ptr { - return fmt.Errorf("resolve ref: target needs to be a pointer") - } - - oldRef := currentRef - if currentRef != nil { - var err error - currentRef, err = currentRef.Inherits(*nextRef(node, ref, currentRef.GetPointer())) - if err != nil { - return err - } - } - if currentRef == nil { - currentRef = ref - } - - refURL := currentRef.GetURL() - if refURL == nil { - return nil - } - if currentRef.IsRoot() { - nv := reflect.ValueOf(node) - reflect.Indirect(tgt).Set(reflect.Indirect(nv)) - return nil - } - - if strings.HasPrefix(refURL.String(), "#") { - res, _, err := ref.GetPointer().Get(node) - if err != nil { - res, _, err = ref.GetPointer().Get(r.root) - if err != nil { - return err - } - } - rv := reflect.Indirect(reflect.ValueOf(res)) - tgtType := reflect.Indirect(tgt).Type() - if rv.Type().AssignableTo(tgtType) { - reflect.Indirect(tgt).Set(reflect.Indirect(reflect.ValueOf(res))) - } else { - if err := swag.DynamicJSONToStruct(rv.Interface(), target); err != nil { - return err - } - } - - return nil - } - - if refURL.Scheme != "" && refURL.Host != "" { - // most definitely take the red pill - data, _, _, err := r.load(refURL) - if err != nil { - return err - } - - if ((oldRef == nil && currentRef != nil) || - (oldRef != nil && currentRef == nil) || - oldRef.String() != currentRef.String()) && - ((oldRef == nil && ref != nil) || - (oldRef != nil && ref == nil) || - (oldRef.String() != ref.String())) { - - return r.resolveRef(currentRef, ref, data, target) - } - - var res interface{} - if currentRef.String() != "" { - res, _, err = currentRef.GetPointer().Get(data) - if err != nil { - return err - } - } else { - res = data - } - - if err := swag.DynamicJSONToStruct(res, target); err != nil { - return err - } - - } - return nil -} - -func (r *schemaLoader) load(refURL *url.URL) (interface{}, url.URL, bool, error) { - toFetch := *refURL - toFetch.Fragment = "" - - data, fromCache := r.cache.Get(toFetch.String()) - if !fromCache { - b, err := r.loadDoc(toFetch.String()) - if err != nil { - return nil, url.URL{}, false, err - } - - if err := json.Unmarshal(b, &data); err != nil { - return nil, url.URL{}, false, err - } - r.cache.Set(toFetch.String(), data) - } - - return data, toFetch, fromCache, nil -} -func (r *schemaLoader) Resolve(ref *Ref, target interface{}) error { - if err := r.resolveRef(r.currentRef, ref, r.root, target); err != nil { - return err - } - - return nil -} - -type specExpander struct { - spec *Swagger - resolver *schemaLoader -} - -// ExpandSpec expands the references in a swagger spec -func ExpandSpec(spec *Swagger) error { - resolver, err := defaultSchemaLoader(spec, nil, nil) - if err != nil { - return err - } - - for key, defintition := range spec.Definitions { - var def *Schema - var err error - if def, err = expandSchema(defintition, []string{"#/definitions/" + key}, resolver); err != nil { - return err - } - spec.Definitions[key] = *def - } - - for key, parameter := range spec.Parameters { - if err := expandParameter(¶meter, resolver); err != nil { - return err - } - spec.Parameters[key] = parameter - } - - for key, response := range spec.Responses { - if err := expandResponse(&response, resolver); err != nil { - return err - } - spec.Responses[key] = response - } - - if spec.Paths != nil { - for key, path := range spec.Paths.Paths { - if err := expandPathItem(&path, resolver); err != nil { - return err - } - spec.Paths.Paths[key] = path - } - } - - return nil -} - -// ExpandSchema expands the refs in the schema object -func ExpandSchema(schema *Schema, root interface{}, cache ResolutionCache) error { - - if schema == nil { - return nil - } - if root == nil { - root = schema - } - - nrr, _ := NewRef(schema.ID) - var rrr *Ref - if nrr.String() != "" { - switch root.(type) { - case *Schema: - rid, _ := NewRef(root.(*Schema).ID) - rrr, _ = rid.Inherits(nrr) - case *Swagger: - rid, _ := NewRef(root.(*Swagger).ID) - rrr, _ = rid.Inherits(nrr) - } - - } - - resolver, err := defaultSchemaLoader(root, rrr, cache) - if err != nil { - return err - } - - refs := []string{""} - if rrr != nil { - refs[0] = rrr.String() - } - var s *Schema - if s, err = expandSchema(*schema, refs, resolver); err != nil { - return nil - } - *schema = *s - return nil -} - -func expandItems(target Schema, parentRefs []string, resolver *schemaLoader) (*Schema, error) { - if target.Items != nil { - if target.Items.Schema != nil { - t, err := expandSchema(*target.Items.Schema, parentRefs, resolver) - if err != nil { - return nil, err - } - *target.Items.Schema = *t - } - for i := range target.Items.Schemas { - t, err := expandSchema(target.Items.Schemas[i], parentRefs, resolver) - if err != nil { - return nil, err - } - target.Items.Schemas[i] = *t - } - } - return &target, nil -} - -func expandSchema(target Schema, parentRefs []string, resolver *schemaLoader) (schema *Schema, err error) { - defer func() { - schema = &target - }() - if target.Ref.String() == "" && target.Ref.IsRoot() { - target = *resolver.root.(*Schema) - return - } - - // t is the new expanded schema - var t *Schema - for target.Ref.String() != "" { - // var newTarget Schema - pRefs := strings.Join(parentRefs, ",") - pRefs += "," - if strings.Contains(pRefs, target.Ref.String()+",") { - err = nil - return - } - - if err = resolver.Resolve(&target.Ref, &t); err != nil { - return - } - parentRefs = append(parentRefs, target.Ref.String()) - target = *t - } - - if t, err = expandItems(target, parentRefs, resolver); err != nil { - return - } - target = *t - - for i := range target.AllOf { - if t, err = expandSchema(target.AllOf[i], parentRefs, resolver); err != nil { - return - } - target.AllOf[i] = *t - } - for i := range target.AnyOf { - if t, err = expandSchema(target.AnyOf[i], parentRefs, resolver); err != nil { - return - } - target.AnyOf[i] = *t - } - for i := range target.OneOf { - if t, err = expandSchema(target.OneOf[i], parentRefs, resolver); err != nil { - return - } - target.OneOf[i] = *t - } - if target.Not != nil { - if t, err = expandSchema(*target.Not, parentRefs, resolver); err != nil { - return - } - *target.Not = *t - } - for k, _ := range target.Properties { - if t, err = expandSchema(target.Properties[k], parentRefs, resolver); err != nil { - return - } - target.Properties[k] = *t - } - if target.AdditionalProperties != nil && target.AdditionalProperties.Schema != nil { - if t, err = expandSchema(*target.AdditionalProperties.Schema, parentRefs, resolver); err != nil { - return - } - *target.AdditionalProperties.Schema = *t - } - for k, _ := range target.PatternProperties { - if t, err = expandSchema(target.PatternProperties[k], parentRefs, resolver); err != nil { - return - } - target.PatternProperties[k] = *t - } - for k, _ := range target.Dependencies { - if target.Dependencies[k].Schema != nil { - if t, err = expandSchema(*target.Dependencies[k].Schema, parentRefs, resolver); err != nil { - return - } - *target.Dependencies[k].Schema = *t - } - } - if target.AdditionalItems != nil && target.AdditionalItems.Schema != nil { - if t, err = expandSchema(*target.AdditionalItems.Schema, parentRefs, resolver); err != nil { - return - } - *target.AdditionalItems.Schema = *t - } - for k, _ := range target.Definitions { - if t, err = expandSchema(target.Definitions[k], parentRefs, resolver); err != nil { - return - } - target.Definitions[k] = *t - } - return -} - -func expandPathItem(pathItem *PathItem, resolver *schemaLoader) error { - if pathItem == nil { - return nil - } - if pathItem.Ref.String() != "" { - if err := resolver.Resolve(&pathItem.Ref, &pathItem); err != nil { - return err - } - } - - for idx := range pathItem.Parameters { - if err := expandParameter(&(pathItem.Parameters[idx]), resolver); err != nil { - return err - } - } - if err := expandOperation(pathItem.Get, resolver); err != nil { - return err - } - if err := expandOperation(pathItem.Head, resolver); err != nil { - return err - } - if err := expandOperation(pathItem.Options, resolver); err != nil { - return err - } - if err := expandOperation(pathItem.Put, resolver); err != nil { - return err - } - if err := expandOperation(pathItem.Post, resolver); err != nil { - return err - } - if err := expandOperation(pathItem.Patch, resolver); err != nil { - return err - } - if err := expandOperation(pathItem.Delete, resolver); err != nil { - return err - } - return nil -} - -func expandOperation(op *Operation, resolver *schemaLoader) error { - if op == nil { - return nil - } - for i, param := range op.Parameters { - if err := expandParameter(¶m, resolver); err != nil { - return err - } - op.Parameters[i] = param - } - - if op.Responses != nil { - responses := op.Responses - if err := expandResponse(responses.Default, resolver); err != nil { - return err - } - for code, response := range responses.StatusCodeResponses { - if err := expandResponse(&response, resolver); err != nil { - return err - } - responses.StatusCodeResponses[code] = response - } - } - return nil -} - -func expandResponse(response *Response, resolver *schemaLoader) error { - if response == nil { - return nil - } - - if response.Ref.String() != "" { - if err := resolver.Resolve(&response.Ref, response); err != nil { - return err - } - } - - if response.Schema != nil { - parentRefs := []string{response.Schema.Ref.String()} - if err := resolver.Resolve(&response.Schema.Ref, &response.Schema); err != nil { - return err - } - if s, err := expandSchema(*response.Schema, parentRefs, resolver); err != nil { - return err - } else { - *response.Schema = *s - } - } - return nil -} - -func expandParameter(parameter *Parameter, resolver *schemaLoader) error { - if parameter == nil { - return nil - } - if parameter.Ref.String() != "" { - if err := resolver.Resolve(¶meter.Ref, parameter); err != nil { - return err - } - } - if parameter.Schema != nil { - parentRefs := []string{parameter.Schema.Ref.String()} - if err := resolver.Resolve(¶meter.Schema.Ref, ¶meter.Schema); err != nil { - return err - } - if s, err := expandSchema(*parameter.Schema, parentRefs, resolver); err != nil { - return err - } else { - *parameter.Schema = *s - } - } - return nil -} |