frp/server/dashboard.go

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// Copyright 2017 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 server
import (
"fmt"
"net"
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"net/http"
"time"
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"github.com/fatedier/frp/assets"
"github.com/fatedier/frp/models/config"
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"github.com/julienschmidt/httprouter"
)
var (
httpServerReadTimeout = 10 * time.Second
httpServerWriteTimeout = 10 * time.Second
)
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func RunDashboardServer(addr string, port int64) (err error) {
// url router
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router := httprouter.New()
// api, see dashboard_api.go
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//mux.HandleFunc("/api/reload", use(apiReload, basicAuth))
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router.GET("/api/serverinfo", apiServerInfo)
router.GET("/api/proxy/tcp", apiProxyTcp)
router.GET("/api/proxy/udp", apiProxyUdp)
router.GET("/api/proxy/http", apiProxyHttp)
router.GET("/api/proxy/https", apiProxyHttps)
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router.GET("/api/proxy/traffic/:name", apiProxyTraffic)
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// view
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router.Handler("GET", "/favicon.ico", http.FileServer(assets.FileSystem))
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router.Handler("GET", "/static/*filepath", http.StripPrefix("/static/", http.FileServer(assets.FileSystem)))
router.HandlerFunc("GET", "/", func(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, "/static/", http.StatusMovedPermanently)
})
address := fmt.Sprintf("%s:%d", addr, port)
server := &http.Server{
Addr: address,
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Handler: router,
ReadTimeout: httpServerReadTimeout,
WriteTimeout: httpServerWriteTimeout,
}
if address == "" {
address = ":http"
}
ln, err := net.Listen("tcp", address)
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if err != nil {
return err
}
go server.Serve(ln)
return
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}
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func use(h http.HandlerFunc, middleware ...func(http.HandlerFunc) http.HandlerFunc) http.HandlerFunc {
for _, m := range middleware {
h = m(h)
}
return h
}
func basicAuth(h http.HandlerFunc) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("WWW-Authenticate", `Basic realm="Restricted"`)
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username, passwd, ok := r.BasicAuth()
if !ok {
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http.Error(w, "Not authorized", 401)
return
}
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if username != config.ServerCommonCfg.DashboardUser || passwd != config.ServerCommonCfg.DashboardPwd {
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http.Error(w, "Not authorized", 401)
return
}
h.ServeHTTP(w, r)
}
}