mirror of https://github.com/dapr/go-sdk.git
104 lines
2.8 KiB
Go
104 lines
2.8 KiB
Go
/*
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Copyright 2021 The Dapr Authors
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package http
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import (
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"context"
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"net/http"
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"os"
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"time"
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"github.com/gorilla/mux"
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"github.com/dapr/go-sdk/actor"
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"github.com/dapr/go-sdk/actor/config"
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"github.com/dapr/go-sdk/actor/runtime"
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"github.com/dapr/go-sdk/service/common"
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"github.com/dapr/go-sdk/service/internal"
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)
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// NewService creates new Service.
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func NewService(address string) common.Service {
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return newServer(address, nil)
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}
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// NewServiceWithMux creates new Service with existing http mux.
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func NewServiceWithMux(address string, mux *mux.Router) common.Service {
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return newServer(address, mux)
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}
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func newServer(address string, router *mux.Router) *Server {
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if router == nil {
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router = mux.NewRouter()
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}
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return &Server{
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address: address,
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httpServer: &http.Server{
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Addr: address,
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Handler: router,
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},
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mux: router,
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topicRegistrar: make(internal.TopicRegistrar),
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authToken: os.Getenv(common.AppAPITokenEnvVar),
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}
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}
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// Server is the HTTP server wrapping mux many Dapr helpers.
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type Server struct {
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address string
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mux *mux.Router
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httpServer *http.Server
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topicRegistrar internal.TopicRegistrar
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authToken string
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}
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func (s *Server) RegisterActorImplFactory(f actor.Factory, opts ...config.Option) {
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runtime.GetActorRuntimeInstance().RegisterActorFactory(f, opts...)
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}
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// Start starts the HTTP handler. Blocks while serving.
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func (s *Server) Start() error {
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s.registerBaseHandler()
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return s.httpServer.ListenAndServe()
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}
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// Stop stops previously started HTTP service with a five second timeout.
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func (s *Server) Stop() error {
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ctxShutDown, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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return s.httpServer.Shutdown(ctxShutDown)
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}
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func (s *Server) GracefulStop() error {
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return s.Stop()
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}
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func setOptions(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Access-Control-Allow-Origin", "*")
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w.Header().Set("Access-Control-Allow-Methods", "POST,OPTIONS")
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w.Header().Set("Access-Control-Allow-Headers", "authorization, origin, content-type, accept")
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w.Header().Set("Allow", "POST,OPTIONS")
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}
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func optionsHandler(h http.Handler) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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if r.Method == http.MethodOptions {
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setOptions(w, r)
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} else {
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h.ServeHTTP(w, r)
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}
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}
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}
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