mirror of
https://github.com/go-gitea/gitea.git
synced 2024-08-20 03:23:26 +02:00
* update code.gitea.io/sdk/gitea v0.13.1 -> v0.13.2 * update github.com/go-swagger/go-swagger v0.25.0 -> v0.26.0 * update github.com/google/uuid v1.1.2 -> v1.2.0 * update github.com/klauspost/compress v1.11.3 -> v1.11.7 * update github.com/lib/pq 083382b7e6fc -> v1.9.0 * update github.com/markbates/goth v1.65.0 -> v1.66.1 * update github.com/mattn/go-sqlite3 v1.14.4 -> v1.14.6 * update github.com/mgechev/revive 246eac737dc7 -> v1.0.3 * update github.com/minio/minio-go/v7 v7.0.6 -> v7.0.7 * update github.com/niklasfasching/go-org v1.3.2 -> v1.4.0 * update github.com/olivere/elastic/v7 v7.0.21 -> v7.0.22 * update github.com/pquerna/otp v1.2.0 -> v1.3.0 * update github.com/xanzy/go-gitlab v0.39.0 -> v0.42.0 * update github.com/yuin/goldmark v1.2.1 -> v1.3.1
623 lines
19 KiB
Go
Vendored
623 lines
19 KiB
Go
Vendored
// Copyright 2015 go-swagger maintainers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package middleware
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import (
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stdContext "context"
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"fmt"
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"net/http"
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"strings"
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"sync"
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"github.com/go-openapi/analysis"
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"github.com/go-openapi/errors"
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"github.com/go-openapi/loads"
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"github.com/go-openapi/spec"
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"github.com/go-openapi/strfmt"
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"github.com/go-openapi/runtime"
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"github.com/go-openapi/runtime/logger"
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"github.com/go-openapi/runtime/middleware/untyped"
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"github.com/go-openapi/runtime/security"
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)
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// Debug when true turns on verbose logging
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var Debug = logger.DebugEnabled()
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var Logger logger.Logger = logger.StandardLogger{}
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func debugLog(format string, args ...interface{}) {
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if Debug {
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Logger.Printf(format, args...)
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}
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}
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// A Builder can create middlewares
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type Builder func(http.Handler) http.Handler
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// PassthroughBuilder returns the handler, aka the builder identity function
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func PassthroughBuilder(handler http.Handler) http.Handler { return handler }
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// RequestBinder is an interface for types to implement
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// when they want to be able to bind from a request
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type RequestBinder interface {
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BindRequest(*http.Request, *MatchedRoute) error
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}
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// Responder is an interface for types to implement
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// when they want to be considered for writing HTTP responses
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type Responder interface {
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WriteResponse(http.ResponseWriter, runtime.Producer)
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}
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// ResponderFunc wraps a func as a Responder interface
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type ResponderFunc func(http.ResponseWriter, runtime.Producer)
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// WriteResponse writes to the response
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func (fn ResponderFunc) WriteResponse(rw http.ResponseWriter, pr runtime.Producer) {
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fn(rw, pr)
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}
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// Context is a type safe wrapper around an untyped request context
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// used throughout to store request context with the standard context attached
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// to the http.Request
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type Context struct {
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spec *loads.Document
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analyzer *analysis.Spec
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api RoutableAPI
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router Router
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}
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type routableUntypedAPI struct {
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api *untyped.API
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hlock *sync.Mutex
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handlers map[string]map[string]http.Handler
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defaultConsumes string
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defaultProduces string
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}
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func newRoutableUntypedAPI(spec *loads.Document, api *untyped.API, context *Context) *routableUntypedAPI {
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var handlers map[string]map[string]http.Handler
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if spec == nil || api == nil {
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return nil
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}
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analyzer := analysis.New(spec.Spec())
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for method, hls := range analyzer.Operations() {
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um := strings.ToUpper(method)
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for path, op := range hls {
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schemes := analyzer.SecurityRequirementsFor(op)
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if oh, ok := api.OperationHandlerFor(method, path); ok {
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if handlers == nil {
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handlers = make(map[string]map[string]http.Handler)
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}
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if b, ok := handlers[um]; !ok || b == nil {
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handlers[um] = make(map[string]http.Handler)
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}
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var handler http.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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// lookup route info in the context
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route, rCtx, _ := context.RouteInfo(r)
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if rCtx != nil {
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r = rCtx
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}
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// bind and validate the request using reflection
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var bound interface{}
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var validation error
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bound, r, validation = context.BindAndValidate(r, route)
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if validation != nil {
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context.Respond(w, r, route.Produces, route, validation)
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return
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}
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// actually handle the request
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result, err := oh.Handle(bound)
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if err != nil {
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// respond with failure
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context.Respond(w, r, route.Produces, route, err)
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return
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}
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// respond with success
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context.Respond(w, r, route.Produces, route, result)
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})
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if len(schemes) > 0 {
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handler = newSecureAPI(context, handler)
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}
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handlers[um][path] = handler
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}
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}
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}
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return &routableUntypedAPI{
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api: api,
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hlock: new(sync.Mutex),
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handlers: handlers,
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defaultProduces: api.DefaultProduces,
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defaultConsumes: api.DefaultConsumes,
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}
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}
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func (r *routableUntypedAPI) HandlerFor(method, path string) (http.Handler, bool) {
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r.hlock.Lock()
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paths, ok := r.handlers[strings.ToUpper(method)]
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if !ok {
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r.hlock.Unlock()
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return nil, false
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}
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handler, ok := paths[path]
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r.hlock.Unlock()
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return handler, ok
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}
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func (r *routableUntypedAPI) ServeErrorFor(operationID string) func(http.ResponseWriter, *http.Request, error) {
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return r.api.ServeError
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}
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func (r *routableUntypedAPI) ConsumersFor(mediaTypes []string) map[string]runtime.Consumer {
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return r.api.ConsumersFor(mediaTypes)
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}
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func (r *routableUntypedAPI) ProducersFor(mediaTypes []string) map[string]runtime.Producer {
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return r.api.ProducersFor(mediaTypes)
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}
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func (r *routableUntypedAPI) AuthenticatorsFor(schemes map[string]spec.SecurityScheme) map[string]runtime.Authenticator {
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return r.api.AuthenticatorsFor(schemes)
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}
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func (r *routableUntypedAPI) Authorizer() runtime.Authorizer {
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return r.api.Authorizer()
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}
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func (r *routableUntypedAPI) Formats() strfmt.Registry {
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return r.api.Formats()
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}
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func (r *routableUntypedAPI) DefaultProduces() string {
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return r.defaultProduces
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}
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func (r *routableUntypedAPI) DefaultConsumes() string {
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return r.defaultConsumes
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}
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// NewRoutableContext creates a new context for a routable API
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func NewRoutableContext(spec *loads.Document, routableAPI RoutableAPI, routes Router) *Context {
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var an *analysis.Spec
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if spec != nil {
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an = analysis.New(spec.Spec())
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}
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ctx := &Context{spec: spec, api: routableAPI, analyzer: an, router: routes}
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return ctx
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}
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// NewContext creates a new context wrapper
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func NewContext(spec *loads.Document, api *untyped.API, routes Router) *Context {
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var an *analysis.Spec
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if spec != nil {
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an = analysis.New(spec.Spec())
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}
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ctx := &Context{spec: spec, analyzer: an}
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ctx.api = newRoutableUntypedAPI(spec, api, ctx)
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ctx.router = routes
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return ctx
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}
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// Serve serves the specified spec with the specified api registrations as a http.Handler
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func Serve(spec *loads.Document, api *untyped.API) http.Handler {
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return ServeWithBuilder(spec, api, PassthroughBuilder)
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}
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// ServeWithBuilder serves the specified spec with the specified api registrations as a http.Handler that is decorated
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// by the Builder
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func ServeWithBuilder(spec *loads.Document, api *untyped.API, builder Builder) http.Handler {
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context := NewContext(spec, api, nil)
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return context.APIHandler(builder)
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}
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type contextKey int8
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const (
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_ contextKey = iota
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ctxContentType
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ctxResponseFormat
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ctxMatchedRoute
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ctxBoundParams
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ctxSecurityPrincipal
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ctxSecurityScopes
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)
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// MatchedRouteFrom request context value.
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func MatchedRouteFrom(req *http.Request) *MatchedRoute {
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mr := req.Context().Value(ctxMatchedRoute)
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if mr == nil {
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return nil
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}
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if res, ok := mr.(*MatchedRoute); ok {
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return res
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}
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return nil
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}
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// SecurityPrincipalFrom request context value.
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func SecurityPrincipalFrom(req *http.Request) interface{} {
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return req.Context().Value(ctxSecurityPrincipal)
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}
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// SecurityScopesFrom request context value.
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func SecurityScopesFrom(req *http.Request) []string {
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rs := req.Context().Value(ctxSecurityScopes)
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if res, ok := rs.([]string); ok {
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return res
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}
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return nil
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}
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type contentTypeValue struct {
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MediaType string
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Charset string
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}
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// BasePath returns the base path for this API
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func (c *Context) BasePath() string {
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return c.spec.BasePath()
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}
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// RequiredProduces returns the accepted content types for responses
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func (c *Context) RequiredProduces() []string {
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return c.analyzer.RequiredProduces()
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}
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// BindValidRequest binds a params object to a request but only when the request is valid
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// if the request is not valid an error will be returned
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func (c *Context) BindValidRequest(request *http.Request, route *MatchedRoute, binder RequestBinder) error {
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var res []error
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var requestContentType string
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// check and validate content type, select consumer
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if runtime.HasBody(request) {
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ct, _, err := runtime.ContentType(request.Header)
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if err != nil {
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res = append(res, err)
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} else {
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if err := validateContentType(route.Consumes, ct); err != nil {
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res = append(res, err)
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}
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if len(res) == 0 {
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cons, ok := route.Consumers[ct]
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if !ok {
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res = append(res, errors.New(500, "no consumer registered for %s", ct))
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} else {
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route.Consumer = cons
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requestContentType = ct
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}
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}
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}
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}
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// check and validate the response format
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if len(res) == 0 {
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// if the route does not provide Produces and a default contentType could not be identified
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// based on a body, typical for GET and DELETE requests, then default contentType to.
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if len(route.Produces) == 0 && requestContentType == "" {
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requestContentType = "*/*"
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}
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if str := NegotiateContentType(request, route.Produces, requestContentType); str == "" {
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res = append(res, errors.InvalidResponseFormat(request.Header.Get(runtime.HeaderAccept), route.Produces))
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}
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}
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// now bind the request with the provided binder
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// it's assumed the binder will also validate the request and return an error if the
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// request is invalid
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if binder != nil && len(res) == 0 {
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if err := binder.BindRequest(request, route); err != nil {
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return err
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}
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}
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if len(res) > 0 {
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return errors.CompositeValidationError(res...)
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}
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return nil
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}
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// ContentType gets the parsed value of a content type
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// Returns the media type, its charset and a shallow copy of the request
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// when its context doesn't contain the content type value, otherwise it returns
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// the same request
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// Returns the error that runtime.ContentType may retunrs.
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func (c *Context) ContentType(request *http.Request) (string, string, *http.Request, error) {
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var rCtx = request.Context()
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if v, ok := rCtx.Value(ctxContentType).(*contentTypeValue); ok {
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return v.MediaType, v.Charset, request, nil
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}
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mt, cs, err := runtime.ContentType(request.Header)
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if err != nil {
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return "", "", nil, err
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}
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rCtx = stdContext.WithValue(rCtx, ctxContentType, &contentTypeValue{mt, cs})
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return mt, cs, request.WithContext(rCtx), nil
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}
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// LookupRoute looks a route up and returns true when it is found
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func (c *Context) LookupRoute(request *http.Request) (*MatchedRoute, bool) {
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if route, ok := c.router.Lookup(request.Method, request.URL.EscapedPath()); ok {
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return route, ok
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}
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return nil, false
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}
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// RouteInfo tries to match a route for this request
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// Returns the matched route, a shallow copy of the request if its context
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// contains the matched router, otherwise the same request, and a bool to
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// indicate if it the request matches one of the routes, if it doesn't
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// then it returns false and nil for the other two return values
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func (c *Context) RouteInfo(request *http.Request) (*MatchedRoute, *http.Request, bool) {
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var rCtx = request.Context()
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if v, ok := rCtx.Value(ctxMatchedRoute).(*MatchedRoute); ok {
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return v, request, ok
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}
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if route, ok := c.LookupRoute(request); ok {
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rCtx = stdContext.WithValue(rCtx, ctxMatchedRoute, route)
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return route, request.WithContext(rCtx), ok
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}
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return nil, nil, false
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}
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// ResponseFormat negotiates the response content type
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// Returns the response format and a shallow copy of the request if its context
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// doesn't contain the response format, otherwise the same request
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func (c *Context) ResponseFormat(r *http.Request, offers []string) (string, *http.Request) {
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var rCtx = r.Context()
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if v, ok := rCtx.Value(ctxResponseFormat).(string); ok {
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debugLog("[%s %s] found response format %q in context", r.Method, r.URL.Path, v)
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return v, r
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}
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format := NegotiateContentType(r, offers, "")
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if format != "" {
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debugLog("[%s %s] set response format %q in context", r.Method, r.URL.Path, format)
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r = r.WithContext(stdContext.WithValue(rCtx, ctxResponseFormat, format))
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}
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debugLog("[%s %s] negotiated response format %q", r.Method, r.URL.Path, format)
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return format, r
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}
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// AllowedMethods gets the allowed methods for the path of this request
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func (c *Context) AllowedMethods(request *http.Request) []string {
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return c.router.OtherMethods(request.Method, request.URL.EscapedPath())
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}
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// ResetAuth removes the current principal from the request context
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func (c *Context) ResetAuth(request *http.Request) *http.Request {
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rctx := request.Context()
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rctx = stdContext.WithValue(rctx, ctxSecurityPrincipal, nil)
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rctx = stdContext.WithValue(rctx, ctxSecurityScopes, nil)
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return request.WithContext(rctx)
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}
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// Authorize authorizes the request
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// Returns the principal object and a shallow copy of the request when its
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// context doesn't contain the principal, otherwise the same request or an error
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// (the last) if one of the authenticators returns one or an Unauthenticated error
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func (c *Context) Authorize(request *http.Request, route *MatchedRoute) (interface{}, *http.Request, error) {
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if route == nil || !route.HasAuth() {
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return nil, nil, nil
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}
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var rCtx = request.Context()
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if v := rCtx.Value(ctxSecurityPrincipal); v != nil {
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return v, request, nil
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}
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applies, usr, err := route.Authenticators.Authenticate(request, route)
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if !applies || err != nil || !route.Authenticators.AllowsAnonymous() && usr == nil {
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if err != nil {
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return nil, nil, err
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}
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return nil, nil, errors.Unauthenticated("invalid credentials")
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}
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if route.Authorizer != nil {
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if err := route.Authorizer.Authorize(request, usr); err != nil {
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if _, ok := err.(errors.Error); ok {
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return nil, nil, err
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}
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return nil, nil, errors.New(http.StatusForbidden, err.Error())
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}
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}
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rCtx = request.Context()
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rCtx = stdContext.WithValue(rCtx, ctxSecurityPrincipal, usr)
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rCtx = stdContext.WithValue(rCtx, ctxSecurityScopes, route.Authenticator.AllScopes())
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return usr, request.WithContext(rCtx), nil
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}
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// BindAndValidate binds and validates the request
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// Returns the validation map and a shallow copy of the request when its context
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// doesn't contain the validation, otherwise it returns the same request or an
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// CompositeValidationError error
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func (c *Context) BindAndValidate(request *http.Request, matched *MatchedRoute) (interface{}, *http.Request, error) {
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var rCtx = request.Context()
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if v, ok := rCtx.Value(ctxBoundParams).(*validation); ok {
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debugLog("got cached validation (valid: %t)", len(v.result) == 0)
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if len(v.result) > 0 {
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return v.bound, request, errors.CompositeValidationError(v.result...)
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}
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return v.bound, request, nil
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}
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result := validateRequest(c, request, matched)
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rCtx = stdContext.WithValue(rCtx, ctxBoundParams, result)
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request = request.WithContext(rCtx)
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if len(result.result) > 0 {
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return result.bound, request, errors.CompositeValidationError(result.result...)
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}
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debugLog("no validation errors found")
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return result.bound, request, nil
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}
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// NotFound the default not found responder for when no route has been matched yet
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func (c *Context) NotFound(rw http.ResponseWriter, r *http.Request) {
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c.Respond(rw, r, []string{c.api.DefaultProduces()}, nil, errors.NotFound("not found"))
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}
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// Respond renders the response after doing some content negotiation
|
|
func (c *Context) Respond(rw http.ResponseWriter, r *http.Request, produces []string, route *MatchedRoute, data interface{}) {
|
|
debugLog("responding to %s %s with produces: %v", r.Method, r.URL.Path, produces)
|
|
offers := []string{}
|
|
for _, mt := range produces {
|
|
if mt != c.api.DefaultProduces() {
|
|
offers = append(offers, mt)
|
|
}
|
|
}
|
|
// the default producer is last so more specific producers take precedence
|
|
offers = append(offers, c.api.DefaultProduces())
|
|
debugLog("offers: %v", offers)
|
|
|
|
var format string
|
|
format, r = c.ResponseFormat(r, offers)
|
|
rw.Header().Set(runtime.HeaderContentType, format)
|
|
|
|
if resp, ok := data.(Responder); ok {
|
|
producers := route.Producers
|
|
prod, ok := producers[format]
|
|
if !ok {
|
|
prods := c.api.ProducersFor(normalizeOffers([]string{c.api.DefaultProduces()}))
|
|
pr, ok := prods[c.api.DefaultProduces()]
|
|
if !ok {
|
|
panic(errors.New(http.StatusInternalServerError, "can't find a producer for "+format))
|
|
}
|
|
prod = pr
|
|
}
|
|
resp.WriteResponse(rw, prod)
|
|
return
|
|
}
|
|
|
|
if err, ok := data.(error); ok {
|
|
if format == "" {
|
|
rw.Header().Set(runtime.HeaderContentType, runtime.JSONMime)
|
|
}
|
|
|
|
if realm := security.FailedBasicAuth(r); realm != "" {
|
|
rw.Header().Set("WWW-Authenticate", fmt.Sprintf("Basic realm=%q", realm))
|
|
}
|
|
|
|
if route == nil || route.Operation == nil {
|
|
c.api.ServeErrorFor("")(rw, r, err)
|
|
return
|
|
}
|
|
c.api.ServeErrorFor(route.Operation.ID)(rw, r, err)
|
|
return
|
|
}
|
|
|
|
if route == nil || route.Operation == nil {
|
|
rw.WriteHeader(200)
|
|
if r.Method == "HEAD" {
|
|
return
|
|
}
|
|
producers := c.api.ProducersFor(normalizeOffers(offers))
|
|
prod, ok := producers[format]
|
|
if !ok {
|
|
panic(errors.New(http.StatusInternalServerError, "can't find a producer for "+format))
|
|
}
|
|
if err := prod.Produce(rw, data); err != nil {
|
|
panic(err) // let the recovery middleware deal with this
|
|
}
|
|
return
|
|
}
|
|
|
|
if _, code, ok := route.Operation.SuccessResponse(); ok {
|
|
rw.WriteHeader(code)
|
|
if code == 204 || r.Method == "HEAD" {
|
|
return
|
|
}
|
|
|
|
producers := route.Producers
|
|
prod, ok := producers[format]
|
|
if !ok {
|
|
if !ok {
|
|
prods := c.api.ProducersFor(normalizeOffers([]string{c.api.DefaultProduces()}))
|
|
pr, ok := prods[c.api.DefaultProduces()]
|
|
if !ok {
|
|
panic(errors.New(http.StatusInternalServerError, "can't find a producer for "+format))
|
|
}
|
|
prod = pr
|
|
}
|
|
}
|
|
if err := prod.Produce(rw, data); err != nil {
|
|
panic(err) // let the recovery middleware deal with this
|
|
}
|
|
return
|
|
}
|
|
|
|
c.api.ServeErrorFor(route.Operation.ID)(rw, r, errors.New(http.StatusInternalServerError, "can't produce response"))
|
|
}
|
|
|
|
func (c *Context) APIHandlerSwaggerUI(builder Builder) http.Handler {
|
|
b := builder
|
|
if b == nil {
|
|
b = PassthroughBuilder
|
|
}
|
|
|
|
var title string
|
|
sp := c.spec.Spec()
|
|
if sp != nil && sp.Info != nil && sp.Info.Title != "" {
|
|
title = sp.Info.Title
|
|
}
|
|
|
|
swaggerUIOpts := SwaggerUIOpts{
|
|
BasePath: c.BasePath(),
|
|
Title: title,
|
|
}
|
|
|
|
return Spec("", c.spec.Raw(), SwaggerUI(swaggerUIOpts, c.RoutesHandler(b)))
|
|
}
|
|
|
|
// APIHandler returns a handler to serve the API, this includes a swagger spec, router and the contract defined in the swagger spec
|
|
func (c *Context) APIHandler(builder Builder) http.Handler {
|
|
b := builder
|
|
if b == nil {
|
|
b = PassthroughBuilder
|
|
}
|
|
|
|
var title string
|
|
sp := c.spec.Spec()
|
|
if sp != nil && sp.Info != nil && sp.Info.Title != "" {
|
|
title = sp.Info.Title
|
|
}
|
|
|
|
redocOpts := RedocOpts{
|
|
BasePath: c.BasePath(),
|
|
Title: title,
|
|
}
|
|
|
|
return Spec("", c.spec.Raw(), Redoc(redocOpts, c.RoutesHandler(b)))
|
|
}
|
|
|
|
// RoutesHandler returns a handler to serve the API, just the routes and the contract defined in the swagger spec
|
|
func (c *Context) RoutesHandler(builder Builder) http.Handler {
|
|
b := builder
|
|
if b == nil {
|
|
b = PassthroughBuilder
|
|
}
|
|
return NewRouter(c, b(NewOperationExecutor(c)))
|
|
}
|