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synced 2026-09-21 00:24:07 +08:00
110 lines
2.8 KiB
Go
110 lines
2.8 KiB
Go
// Copyright 2019 Yunion
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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 server
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import (
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"bufio"
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"crypto/sha256"
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"encoding/base64"
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"fmt"
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"net"
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"net/http"
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"os"
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"time"
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"yunion.io/x/log"
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"yunion.io/x/pkg/utils"
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)
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var accessLogHostId = genAccessLogHostId()
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func genAccessLogHostId() string {
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hostname, _ := os.Hostname()
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h := sha256.New()
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fmt.Fprintf(h, "mcp-server:%s", hostname)
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return base64.URLEncoding.EncodeToString(h.Sum(nil))
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}
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type accessLogResponseWriter struct {
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http.ResponseWriter
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status int
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}
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func (w *accessLogResponseWriter) WriteHeader(code int) {
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if w.status == 0 {
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w.status = code
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}
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w.ResponseWriter.WriteHeader(code)
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}
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func (w *accessLogResponseWriter) Write(b []byte) (int, error) {
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if w.status == 0 {
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w.status = http.StatusOK
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}
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return w.ResponseWriter.Write(b)
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}
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func (w *accessLogResponseWriter) Flush() {
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if f, ok := w.ResponseWriter.(http.Flusher); ok {
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f.Flush()
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}
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}
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func (w *accessLogResponseWriter) Unwrap() http.ResponseWriter {
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return w.ResponseWriter
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}
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func (w *accessLogResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
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h, ok := w.ResponseWriter.(http.Hijacker)
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if !ok {
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return nil, nil, fmt.Errorf("not a hijacker")
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}
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return h.Hijack()
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}
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func genAccessRequestId(w http.ResponseWriter, r *http.Request) string {
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rid := r.Header.Get("X-Request-Id")
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if len(rid) == 0 {
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rid = utils.GenRequestId(3)
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} else {
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rid = fmt.Sprintf("%s-%s", rid, utils.GenRequestId(3))
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}
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w.Header().Set("X-Request-Id", rid)
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w.Header().Set("X-Request-Host-Id", accessLogHostId)
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return rid
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}
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// withAccessLog wraps handler with appsrv-style access logs:
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//
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// hostId status requestId METHOD /path (remote) durationMs
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func withAccessLog(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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lrw := &accessLogResponseWriter{ResponseWriter: w, status: 0}
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rid := genAccessRequestId(lrw, r)
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start := time.Now()
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next.ServeHTTP(lrw, r)
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if lrw.status == 0 {
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lrw.status = http.StatusOK
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}
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durationMs := float64(time.Since(start).Nanoseconds()) / 1e6
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remote := r.RemoteAddr
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if peer := r.Header.Get("X-Yunion-Peer-Service-Name"); peer != "" {
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remote = fmt.Sprintf("%s:%s", r.RemoteAddr, peer)
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}
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log.Infof("%s %d %s %s %s (%s) %.2fms",
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accessLogHostId, lrw.status, rid, r.Method, r.URL, remote, durationMs)
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})
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}
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