frp/pkg/plugin/client/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"
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"net"
"net/http"
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"time"
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"github.com/gorilla/mux"
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utilnet "github.com/fatedier/frp/pkg/util/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 = "/"
}
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router := mux.NewRouter()
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router.Use(utilnet.NewHTTPAuthMiddleware(httpUser, httpPasswd).SetAuthFailDelay(200 * time.Millisecond).Middleware)
router.PathPrefix(prefix).Handler(utilnet.MakeHTTPGzipHandler(http.StripPrefix(prefix, http.FileServer(http.Dir(localPath))))).Methods("GET")
sp.s = &http.Server{
Handler: router,
}
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go func() {
_ = sp.s.Serve(listener)
}()
return sp, nil
}
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func (sp *StaticFilePlugin) Handle(conn io.ReadWriteCloser, realConn net.Conn, extraBufToLocal []byte) {
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wrapConn := utilnet.WrapReadWriteCloserToConn(conn, realConn)
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_ = sp.l.PutConn(wrapConn)
}
func (sp *StaticFilePlugin) Name() string {
return PluginStaticFile
}
func (sp *StaticFilePlugin) Close() error {
sp.s.Close()
sp.l.Close()
return nil
}