frp/models/plugin/static_file.go

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// Copyright 2018 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 (
"io"
"net/http"
"github.com/julienschmidt/httprouter"
frpNet "github.com/fatedier/frp/utils/net"
)
const PluginStaticFile = "static_file"
func init() {
Register(PluginStaticFile, NewStaticFilePlugin)
}
type StaticFilePlugin struct {
localPath string
stripPrefix string
httpUser string
httpPasswd string
l *Listener
s *http.Server
}
func NewStaticFilePlugin(params map[string]string) (Plugin, error) {
localPath := params["plugin_local_path"]
stripPrefix := params["plugin_strip_prefix"]
httpUser := params["plugin_http_user"]
httpPasswd := params["plugin_http_passwd"]
listener := NewProxyListener()
sp := &StaticFilePlugin{
localPath: localPath,
stripPrefix: stripPrefix,
httpUser: httpUser,
httpPasswd: httpPasswd,
l: listener,
}
var prefix string
if stripPrefix != "" {
prefix = "/" + stripPrefix + "/"
} else {
prefix = "/"
}
router := httprouter.New()
router.Handler("GET", prefix+"*filepath", frpNet.MakeHttpGzipHandler(
frpNet.NewHttpBasicAuthWraper(http.StripPrefix(prefix, http.FileServer(http.Dir(localPath))), httpUser, httpPasswd)))
sp.s = &http.Server{
Handler: router,
}
go sp.s.Serve(listener)
return sp, nil
}
func (sp *StaticFilePlugin) Handle(conn io.ReadWriteCloser, realConn frpNet.Conn) {
wrapConn := frpNet.WrapReadWriteCloserToConn(conn, realConn)
sp.l.PutConn(wrapConn)
}
func (sp *StaticFilePlugin) Name() string {
return PluginStaticFile
}
func (sp *StaticFilePlugin) Close() error {
sp.s.Close()
sp.l.Close()
return nil
}