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Diffstat (limited to 'Godeps/_workspace/src/github.com/gorilla/websocket/examples/echo/server.go')
-rw-r--r-- | Godeps/_workspace/src/github.com/gorilla/websocket/examples/echo/server.go | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/github.com/gorilla/websocket/examples/echo/server.go b/Godeps/_workspace/src/github.com/gorilla/websocket/examples/echo/server.go new file mode 100644 index 000000000..a685b0974 --- /dev/null +++ b/Godeps/_workspace/src/github.com/gorilla/websocket/examples/echo/server.go @@ -0,0 +1,132 @@ +// Copyright 2015 The Gorilla WebSocket Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build ignore + +package main + +import ( + "flag" + "html/template" + "log" + "net/http" + + "github.com/gorilla/websocket" +) + +var addr = flag.String("addr", "localhost:8080", "http service address") + +var upgrader = websocket.Upgrader{} // use default options + +func echo(w http.ResponseWriter, r *http.Request) { + c, err := upgrader.Upgrade(w, r, nil) + if err != nil { + log.Print("upgrade:", err) + return + } + defer c.Close() + for { + mt, message, err := c.ReadMessage() + if err != nil { + log.Println("read:", err) + break + } + log.Printf("recv: %s", message) + err = c.WriteMessage(mt, message) + if err != nil { + log.Println("write:", err) + break + } + } +} + +func home(w http.ResponseWriter, r *http.Request) { + homeTemplate.Execute(w, "ws://"+r.Host+"/echo") +} + +func main() { + flag.Parse() + log.SetFlags(0) + http.HandleFunc("/echo", echo) + http.HandleFunc("/", home) + log.Fatal(http.ListenAndServe(*addr, nil)) +} + +var homeTemplate = template.Must(template.New("").Parse(` +<!DOCTYPE html> +<head> +<meta charset="utf-8"> +<script> +window.addEventListener("load", function(evt) { + + var output = document.getElementById("output"); + var input = document.getElementById("input"); + var ws; + + var print = function(message) { + var d = document.createElement("div"); + d.innerHTML = message; + output.appendChild(d); + }; + + document.getElementById("open").onclick = function(evt) { + if (ws) { + return false; + } + ws = new WebSocket("{{.}}"); + ws.onopen = function(evt) { + print("OPEN"); + } + ws.onclose = function(evt) { + print("CLOSE"); + ws = null; + } + ws.onmessage = function(evt) { + print("RESPONSE: " + evt.data); + } + ws.onerror = function(evt) { + print("ERROR: " + evt.data); + } + return false; + }; + + document.getElementById("send").onclick = function(evt) { + if (!ws) { + return false; + } + print("SEND: " + input.value); + ws.send(input.value); + return false; + }; + + document.getElementById("close").onclick = function(evt) { + if (!ws) { + return false; + } + ws.close(); + return false; + }; + +}); +</script> +</head> +<body> +<table> +<tr><td valign="top" width="50%"> +<p>Click "Open" to create a connection to the server, +"Send" to send a message to the server and "Close" to close the connection. +You can change the message and send multiple times. +<p> +<form> +<button id="open">Open</button> +<button id="close">Close</button> +<p><input id="input" type="text" value="Hello world!"> +<button id="send">Send</button> +</form> +</td><td valign="top" width="50%"> +<div id="output"></div> +</td></tr></table> +</body> +</html> +`)) |