diff --git a/models/plugin/https2http.go b/models/plugin/https2http.go new file mode 100644 index 0000000..746995f --- /dev/null +++ b/models/plugin/https2http.go @@ -0,0 +1,119 @@ +// Copyright 2019 fatedier, fatedier@gmail.com +// +// 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 plugin + +import ( + "crypto/tls" + "fmt" + "io" + "net/http" + "net/http/httputil" + + frpNet "github.com/fatedier/frp/utils/net" +) + +const PluginHTTPS2HTTP = "https2http" + +func init() { + Register(PluginHTTPS2HTTP, NewHTTPS2HTTPPlugin) +} + +type HTTPS2HTTPPlugin struct { + crtPath string + keyPath string + hostHeaderRewrite string + localAddr string + + l *Listener + s *http.Server +} + +func NewHTTPS2HTTPPlugin(params map[string]string) (Plugin, error) { + crtPath := params["plugin_crt_path"] + keyPath := params["plugin_key_path"] + localAddr := params["plugin_local_addr"] + hostHeaderRewrite := params["plugin_host_header_rewrite"] + + if crtPath == "" { + return nil, fmt.Errorf("plugin_crt_path is required") + } + if keyPath == "" { + return nil, fmt.Errorf("plugin_key_path is required") + } + if localAddr == "" { + return nil, fmt.Errorf("plugin_local_addr is required") + } + + listener := NewProxyListener() + + p := &HTTPS2HTTPPlugin{ + crtPath: crtPath, + keyPath: keyPath, + localAddr: localAddr, + hostHeaderRewrite: hostHeaderRewrite, + l: listener, + } + + rp := &httputil.ReverseProxy{ + Director: func(req *http.Request) { + req.URL.Scheme = "http" + req.URL.Host = p.localAddr + if p.hostHeaderRewrite != "" { + req.Host = p.hostHeaderRewrite + } + }, + } + + p.s = &http.Server{ + Handler: rp, + } + + tlsConfig, err := p.genTLSConfig() + if err != nil { + return nil, fmt.Errorf("gen TLS config error: %v", err) + } + ln := tls.NewListener(listener, tlsConfig) + + go p.s.Serve(ln) + return p, nil +} + +func (p *HTTPS2HTTPPlugin) genTLSConfig() (*tls.Config, error) { + cert, err := tls.LoadX509KeyPair(p.crtPath, p.keyPath) + if err != nil { + return nil, err + } + + config := &tls.Config{Certificates: []tls.Certificate{cert}} + return config, nil +} + +func (p *HTTPS2HTTPPlugin) Handle(conn io.ReadWriteCloser, realConn frpNet.Conn) { + wrapConn := frpNet.WrapReadWriteCloserToConn(conn, realConn) + p.l.PutConn(wrapConn) +} + +func (p *HTTPS2HTTPPlugin) handleRequest(w http.ResponseWriter, r *http.Request) { + w.Write([]byte("hello")) + return +} + +func (p *HTTPS2HTTPPlugin) Name() string { + return PluginHTTPS2HTTP +} + +func (p *HTTPS2HTTPPlugin) Close() error { + return nil +}