mirror of
https://github.com/fatedier/frp.git
synced 2026-05-15 08:05:49 -06:00
126 lines
3 KiB
Go
126 lines
3 KiB
Go
// Copyright 2026 The frp Authors
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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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//go:build !frps
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package client
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import (
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"context"
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stdlog "log"
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"net/http"
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"net/http/httputil"
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"time"
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"github.com/fatedier/golib/pool"
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v1 "github.com/fatedier/frp/pkg/config/v1"
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"github.com/fatedier/frp/pkg/plugin/client/internal/httpsserver"
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"github.com/fatedier/frp/pkg/util/log"
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netpkg "github.com/fatedier/frp/pkg/util/net"
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)
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const httpBridgeReadHeaderTimeout = 60 * time.Second
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func rewriteHTTPPluginRequest(
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req *http.Request,
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scheme string,
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localAddr string,
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hostHeaderRewrite string,
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requestHeaders v1.HeaderOperations,
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) {
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req.URL.Scheme = scheme
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req.URL.Host = localAddr
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if hostHeaderRewrite != "" {
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req.Host = hostHeaderRewrite
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}
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for k, v := range requestHeaders.Set {
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req.Header.Set(k, v)
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}
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}
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type httpBridgePlugin struct {
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l *Listener
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s *http.Server
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useSourceRemoteAddr bool
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}
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func newHTTPBridgePluginServer(handler http.Handler, useSourceRemoteAddr bool) *httpBridgePlugin {
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listener := NewProxyListener()
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p := &httpBridgePlugin{
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l: listener,
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useSourceRemoteAddr: useSourceRemoteAddr,
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}
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p.s = &http.Server{
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Handler: handler,
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ReadHeaderTimeout: httpBridgeReadHeaderTimeout,
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}
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go func() {
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_ = p.s.Serve(listener)
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}()
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return p
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}
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func newHTTPSBridgePluginServer(
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handler http.Handler,
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crtPath string,
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keyPath string,
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enableHTTP2 *bool,
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useSourceRemoteAddr bool,
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) (*httpBridgePlugin, error) {
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listener := NewProxyListener()
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server, err := httpsserver.New(handler, crtPath, keyPath, enableHTTP2)
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if err != nil {
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return nil, err
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}
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p := &httpBridgePlugin{
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l: listener,
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s: server,
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useSourceRemoteAddr: useSourceRemoteAddr,
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}
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go func() {
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_ = p.s.ServeTLS(listener, "", "")
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}()
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return p, nil
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}
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func newHTTPBridgeReverseProxy(
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rewrite func(*httputil.ProxyRequest),
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transport http.RoundTripper,
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) *httputil.ReverseProxy {
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rp := &httputil.ReverseProxy{
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Rewrite: rewrite,
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BufferPool: pool.NewBuffer(32 * 1024),
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ErrorLog: stdlog.New(log.NewWriteLogger(log.WarnLevel, 2), "", 0),
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}
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if transport != nil {
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rp.Transport = transport
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}
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return rp
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}
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func (p *httpBridgePlugin) Handle(_ context.Context, connInfo *ConnectionInfo) {
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wrapConn := netpkg.WrapReadWriteCloserToConn(connInfo.Conn, connInfo.UnderlyingConn)
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if p.useSourceRemoteAddr && connInfo.SrcAddr != nil {
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wrapConn.SetRemoteAddr(connInfo.SrcAddr)
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}
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_ = p.l.PutConn(wrapConn)
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}
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func (p *httpBridgePlugin) Close() error {
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err := p.s.Close()
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_ = p.l.Close()
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return err
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}
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