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server.go
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server.go
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// Copyright (c) 2019 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package http
import (
"context"
"fmt"
"log"
"net/http"
"sync"
"time"
"go.uber.org/yarpc/internal/net"
)
const addr = ":8085"
var server *net.HTTPServer
// Start starts an http server that yarpc client will make requests to
func Start() {
mux := &yarpcHTTPMux{
handlers: make(map[string]http.Handler),
}
mux.HandleFunc("handlertimeout/raw", handlerTimeoutRawHandler)
server = net.NewHTTPServer(
&http.Server{
Addr: addr,
Handler: mux,
ReadTimeout: 5 * time.Second,
WriteTimeout: 5 * time.Second,
})
if err := server.ListenAndServe(); err != nil {
log.Fatalf("failed to start HTTP server: %v", err)
}
}
// Stop stops the HTTP server.
func Stop() {
if err := server.Shutdown(context.Background()); err != nil {
log.Printf("failed to stop HTTP server: %v", err)
}
}
type yarpcHTTPMux struct {
sync.RWMutex
handlers map[string]http.Handler
}
func (m *yarpcHTTPMux) HandleFunc(procedure string, f http.HandlerFunc) {
m.Lock()
defer m.Unlock()
m.handlers[procedure] = f
}
func (m *yarpcHTTPMux) ServeHTTP(w http.ResponseWriter, req *http.Request) {
m.RLock()
defer m.RUnlock()
if req.Method != `POST` {
w.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(w, "Invalid method: %q\n", req.Method)
return
}
procedure := req.Header.Get(`RPC-Procedure`)
if f, ok := m.handlers[procedure]; ok {
f.ServeHTTP(w, req)
} else {
w.WriteHeader(http.StatusBadRequest)
fmt.Fprintf(w, "Unknown procedure: %q\n", procedure)
}
}