/
http.go
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/
http.go
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// Copyright (c) 2021 Terminus, Inc.
//
// 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 http
import (
"net/http"
"net/http/httputil"
"runtime/debug"
"strconv"
"github.com/sirupsen/logrus"
"github.com/erda-project/erda/modules/openapi/api"
util "github.com/erda-project/erda/pkg/http/httputil"
)
func NewReverseProxy(director func(*http.Request),
modifyResponse func(*http.Response) error) http.Handler {
return &httputil.ReverseProxy{
FlushInterval: -1,
Director: director,
ModifyResponse: modifyResponse,
}
}
type ReverseProxyWithCustom struct {
reverseProxy http.Handler
}
func NewReverseProxyWithCustom(director func(*http.Request),
modifyResponse func(*http.Response) error) http.Handler {
r := NewReverseProxy(director, modifyResponse)
return &ReverseProxyWithCustom{reverseProxy: r}
}
func (r *ReverseProxyWithCustom) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
defer func() {
if err := recover(); err != nil {
debug.PrintStack()
logrus.Errorf("[alert] openapi http proxy recover from panic: %v", err)
}
}()
spec := api.API.Find(req)
req.Header.Add(util.UserInfoDesensitizedHeader, strconv.FormatBool(spec.NeedDesensitize))
if spec != nil && spec.Custom != nil {
spec.Custom(rw, req)
return
}
r.reverseProxy.ServeHTTP(rw, req)
}