94 lines
2.2 KiB
Go
94 lines
2.2 KiB
Go
/*
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* Copyright (C) 2018 Simon Eisenmann
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* Copyright (C) 2014-2017 struktur AG
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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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*/
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package main
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import (
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"flag"
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"fmt"
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"log"
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"net/http"
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"runtime"
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"github.com/longsleep/realtimetraffic/client"
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"github.com/gorilla/websocket"
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)
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func serveClient(w http.ResponseWriter, r *http.Request) {
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if r.Method != "GET" && r.Method != "HEAD" {
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http.Error(w, "Method nod allowed", 405)
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return
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}
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http.StripPrefix("/", client.HandlerFunc).ServeHTTP(w, r)
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}
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func serveWs(w http.ResponseWriter, r *http.Request) {
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if r.Method != "GET" {
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http.Error(w, "Method not allowed", 405)
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return
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}
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// Read request details.
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r.ParseForm()
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iface := r.FormValue("if")
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if iface == "" {
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iface = "eth0"
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}
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ws, err := websocket.Upgrade(w, r, nil, 1024, 1024)
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if _, ok := err.(websocket.HandshakeError); ok {
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http.Error(w, "Not a websocket handshake", 400)
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return
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} else if err != nil {
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log.Println(err)
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return
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}
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c := &connection{send: make(chan []byte, 256), ws: ws, iface: iface}
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h.register <- c
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go c.writePump()
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c.readPump()
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}
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func main() {
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var err error
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listenAddr := flag.String("listen", "127.0.0.1:8088", "Listen address.")
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versionFlag := flag.Bool("version", false, "Version")
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flag.Parse()
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if *versionFlag {
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fmt.Println("Version :", Version)
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fmt.Println("Build time :", BuildStamp)
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fmt.Println("Go :", runtime.Version())
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return
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}
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go h.run()
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http.HandleFunc("/", serveClient)
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http.HandleFunc("/realtimetraffic", serveWs)
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log.Printf("starting realtimetrafficd %s on %sn", Version, *listenAddr)
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err = http.ListenAndServe(*listenAddr, nil)
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if err != nil {
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log.Fatal(err.Error())
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}
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defer log.Println("exiting")
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}
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