func (s *RpcServer) ServeHTTP(w http.ResponseWriter, req *http.Request) {
serveCtx := getServerContext(req)
// TODO: get user scope from context
// check access
if req.Method != "POST" {
err := errors.BadRequest("go.micro.server", "Method not allowed")
http.Error(w, err.Error(), http.StatusMethodNotAllowed)
return
}
defer req.Body.Close()
b, err := ioutil.ReadAll(req.Body)
if err != nil {
errr := errors.InternalServerError("go.micro.server", fmt.Sprintf("Error reading request body: %v", err))
w.WriteHeader(500)
w.Write([]byte(errr.Error()))
log.Errorf("Erroring reading request body: %v", err)
return
}
rbq := bytes.NewBuffer(b)
rsp := bytes.NewBuffer(nil)
defer rsp.Reset()
defer rbq.Reset()
buf := &buffer{
rbq,
rsp,
}
var cc rpc.ServerCodec
switch req.Header.Get("Content-Type") {
case "application/octet-stream":
cc = pb.NewServerCodec(buf)
case "application/json":
cc = js.NewServerCodec(buf)
default:
err = errors.InternalServerError("go.micro.server", fmt.Sprintf("Unsupported content-type: %v", req.Header.Get("Content-Type")))
w.WriteHeader(500)
w.Write([]byte(err.Error()))
return
}
ctx := newContext(&ctx{}, serveCtx)
err = s.rpc.ServeRequestWithContext(ctx, cc)
if err != nil {
// This should not be possible.
w.WriteHeader(500)
w.Write([]byte(err.Error()))
log.Errorf("Erroring serving request: %v", err)
return
}
w.Header().Set("Content-Type", req.Header.Get("Content-Type"))
w.Header().Set("Content-Length", strconv.Itoa(rsp.Len()))
w.Write(rsp.Bytes())
}
func (c *rpcPlusCodec) ReadRequestHeader(r *rpc.Request) error {
c.rbuf.Reset()
c.rbuf.Write(c.req.Body)
buf := &buffer{c.rbuf}
switch c.req.Header["Content-Type"] {
case "application/octet-stream":
c.codec = pb.NewServerCodec(buf)
case "application/json":
c.codec = js.NewServerCodec(buf)
default:
return fmt.Errorf("unsupported content type %s", c.req.Header["Content-Type"])
}
return c.codec.ReadRequestHeader(r)
}
func (c *rpcPlusCodec) WriteResponse(r *rpc.Response, body interface{}, last bool) error {
c.wbuf.Reset()
buf := &buffer{c.wbuf}
var cc rpc.ServerCodec
switch c.req.Header["Content-Type"] {
case "application/octet-stream":
cc = pb.NewServerCodec(buf)
case "application/json":
cc = js.NewServerCodec(buf)
default:
return fmt.Errorf("unsupported request type: %s", c.req.Header["Content-Type"])
}
if err := cc.WriteResponse(r, body, last); err != nil {
return err
}
return c.socket.Send(&transport.Message{
Header: map[string]string{"Content-Type": c.req.Header["Content-Type"]},
Body: c.wbuf.Bytes(),
})
}