Switch from Godep to go vendoring
This commit is contained in:
Ken-Håvard Lieng
parent
6b37713bc0
commit
cd317761c5
1504 changed files with 263076 additions and 34441 deletions
19
vendor/github.com/gorilla/websocket/examples/command/README.md
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19
vendor/github.com/gorilla/websocket/examples/command/README.md
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# Command example
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This example connects a websocket connection to stdin and stdout of a command.
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Received messages are written to stdin followed by a `\n`. Each line read from
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from standard out is sent as a message to the client.
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$ go get github.com/gorilla/websocket
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$ cd `go list -f '{{.Dir}}' github.com/gorilla/websocket/examples/command`
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$ go run main.go <command and arguments to run>
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# Open http://localhost:8080/ .
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Try the following commands.
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# Echo sent messages to the output area.
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$ go run main.go cat
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# Run a shell.Try sending "ls" and "cat main.go".
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$ go run main.go sh
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96
vendor/github.com/gorilla/websocket/examples/command/home.html
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96
vendor/github.com/gorilla/websocket/examples/command/home.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>Command Example</title>
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<script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>
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<script type="text/javascript">
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$(function() {
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var conn;
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var msg = $("#msg");
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var log = $("#log");
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function appendLog(msg) {
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var d = log[0]
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var doScroll = d.scrollTop == d.scrollHeight - d.clientHeight;
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msg.appendTo(log)
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if (doScroll) {
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d.scrollTop = d.scrollHeight - d.clientHeight;
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}
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}
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$("#form").submit(function() {
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if (!conn) {
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return false;
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}
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if (!msg.val()) {
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return false;
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}
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conn.send(msg.val());
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msg.val("");
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return false
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});
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if (window["WebSocket"]) {
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conn = new WebSocket("ws://{{$}}/ws");
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conn.onclose = function(evt) {
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appendLog($("<div><b>Connection closed.</b></div>"))
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}
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conn.onmessage = function(evt) {
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appendLog($("<pre/>").text(evt.data))
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}
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} else {
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appendLog($("<div><b>Your browser does not support WebSockets.</b></div>"))
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}
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});
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</script>
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<style type="text/css">
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html {
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overflow: hidden;
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}
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body {
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overflow: hidden;
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padding: 0;
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margin: 0;
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width: 100%;
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height: 100%;
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background: gray;
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}
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#log {
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background: white;
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margin: 0;
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padding: 0.5em 0.5em 0.5em 0.5em;
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position: absolute;
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top: 0.5em;
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left: 0.5em;
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right: 0.5em;
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bottom: 3em;
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overflow: auto;
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}
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#log pre {
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margin: 0;
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}
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#form {
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padding: 0 0.5em 0 0.5em;
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margin: 0;
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position: absolute;
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bottom: 1em;
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left: 0px;
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width: 100%;
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overflow: hidden;
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}
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</style>
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</head>
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<body>
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<div id="log"></div>
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<form id="form">
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<input type="submit" value="Send" />
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<input type="text" id="msg" size="64"/>
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</form>
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</body>
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</html>
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188
vendor/github.com/gorilla/websocket/examples/command/main.go
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188
vendor/github.com/gorilla/websocket/examples/command/main.go
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// Copyright 2015 The Gorilla WebSocket Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"bufio"
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"flag"
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"io"
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"log"
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"net/http"
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"os"
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"os/exec"
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"text/template"
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"time"
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"github.com/gorilla/websocket"
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)
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var (
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addr = flag.String("addr", "127.0.0.1:8080", "http service address")
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cmdPath string
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homeTempl = template.Must(template.ParseFiles("home.html"))
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)
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const (
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// Time allowed to write a message to the peer.
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writeWait = 10 * time.Second
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// Maximum message size allowed from peer.
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maxMessageSize = 8192
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// Time allowed to read the next pong message from the peer.
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pongWait = 60 * time.Second
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// Send pings to peer with this period. Must be less than pongWait.
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pingPeriod = (pongWait * 9) / 10
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)
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func pumpStdin(ws *websocket.Conn, w io.Writer) {
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defer ws.Close()
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ws.SetReadLimit(maxMessageSize)
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ws.SetReadDeadline(time.Now().Add(pongWait))
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ws.SetPongHandler(func(string) error { ws.SetReadDeadline(time.Now().Add(pongWait)); return nil })
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for {
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_, message, err := ws.ReadMessage()
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if err != nil {
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break
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}
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message = append(message, '\n')
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if _, err := w.Write(message); err != nil {
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break
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}
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}
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}
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func pumpStdout(ws *websocket.Conn, r io.Reader, done chan struct{}) {
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defer func() {
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ws.Close()
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close(done)
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}()
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s := bufio.NewScanner(r)
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for s.Scan() {
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ws.SetWriteDeadline(time.Now().Add(writeWait))
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if err := ws.WriteMessage(websocket.TextMessage, s.Bytes()); err != nil {
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break
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}
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}
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if s.Err() != nil {
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log.Println("scan:", s.Err())
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}
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}
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func ping(ws *websocket.Conn, done chan struct{}) {
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ticker := time.NewTicker(pingPeriod)
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defer ticker.Stop()
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for {
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select {
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case <-ticker.C:
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if err := ws.WriteControl(websocket.PingMessage, []byte{}, time.Now().Add(writeWait)); err != nil {
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log.Println("ping:", err)
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}
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case <-done:
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return
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}
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}
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}
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func internalError(ws *websocket.Conn, msg string, err error) {
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log.Println(msg, err)
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ws.WriteMessage(websocket.TextMessage, []byte("Internal server error."))
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}
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var upgrader = websocket.Upgrader{}
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func serveWs(w http.ResponseWriter, r *http.Request) {
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ws, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Println("upgrade:", err)
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return
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}
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defer ws.Close()
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outr, outw, err := os.Pipe()
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if err != nil {
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internalError(ws, "stdout:", err)
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return
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}
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defer outr.Close()
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defer outw.Close()
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inr, inw, err := os.Pipe()
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if err != nil {
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internalError(ws, "stdin:", err)
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return
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}
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defer inr.Close()
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defer inw.Close()
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proc, err := os.StartProcess(cmdPath, flag.Args(), &os.ProcAttr{
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Files: []*os.File{inr, outw, outw},
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})
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if err != nil {
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internalError(ws, "start:", err)
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return
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}
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inr.Close()
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outw.Close()
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stdoutDone := make(chan struct{})
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go pumpStdout(ws, outr, stdoutDone)
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go ping(ws, stdoutDone)
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pumpStdin(ws, inw)
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// Some commands will exit when stdin is closed.
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inw.Close()
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// Other commands need a bonk on the head.
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if err := proc.Signal(os.Interrupt); err != nil {
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log.Println("inter:", err)
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}
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select {
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case <-stdoutDone:
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case <-time.After(time.Second):
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// A bigger bonk on the head.
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if err := proc.Signal(os.Kill); err != nil {
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log.Println("term:", err)
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}
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<-stdoutDone
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}
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if _, err := proc.Wait(); err != nil {
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log.Println("wait:", err)
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}
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}
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func serveHome(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path != "/" {
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http.Error(w, "Not found", 404)
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return
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}
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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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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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homeTempl.Execute(w, r.Host)
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}
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func main() {
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flag.Parse()
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if len(flag.Args()) < 1 {
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log.Fatal("must specify at least one argument")
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}
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var err error
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cmdPath, err = exec.LookPath(flag.Args()[0])
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if err != nil {
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log.Fatal(err)
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}
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http.HandleFunc("/", serveHome)
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http.HandleFunc("/ws", serveWs)
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log.Fatal(http.ListenAndServe(*addr, nil))
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}
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