annotate webtty.js @ 143:f1676e81c80a

sqlickrypt: add support for salted SHA-512 passwords, and fix NULL bug. Passwords will now be securely encrypted with random salt. Also avoid storing NULL in the database, because that makes dgamelaunch segfault.
author John "Elwin" Edwards
date Sun, 20 Oct 2013 21:19:13 -0700
parents 789c094675f4
children c4a32007d2dc
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1 #!/usr/bin/env node
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2
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3 var localModules = '/usr/lib/node_modules/';
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4 var http = require('http');
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5 var url = require('url');
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6 var path = require('path');
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7 var fs = require('fs');
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8 var pty = require(path.join(localModules, "pty.js"));
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9 var child_process = require("child_process");
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10 var webSocketServer = require(path.join(localModules, "websocket")).server;
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11
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12 var serveStaticRoot = fs.realpathSync(".");
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13 var sessions = {};
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14 var sessionsWS = {};
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16 var env_dontuse = {"TMUX": true, "TMUX_PANE": true};
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17
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18 /* Constructor for TermSessions. Note that it opens the terminal and
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19 * adds itself to the sessions dict.
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20 */
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21 function TermSessionWS(conn, h, w) {
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22 var ss = this;
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23 /* Set up the sizes. */
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24 w = Math.floor(Number(w));
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25 if (!(w > 0 && w < 256))
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26 w = 80;
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27 this.w = w;
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28 h = Math.floor(Number(h));
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29 if (!(h > 0 && h < 256))
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30 h = 25;
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31 this.h = h;
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32 this.conn = conn;
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33 /* Customize the environment. */
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34 var childenv = {};
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35 for (var key in process.env) {
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36 if (!(key in env_dontuse))
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37 childenv[key] = process.env[key];
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38 }
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39 var spawnopts = {"env": childenv, "cwd": process.env["HOME"],
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40 "rows": this.h, "cols": this.w};
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41 this.term = pty.spawn("bash", [], spawnopts);
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42 this.alive = true;
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43 this.term.on("data", function (datastr) {
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44 var buf = new Buffer(datastr);
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45 if (ss.conn.connected)
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46 ss.conn.sendUTF(JSON.stringify({"t": "d", "d": buf.toString("hex")}));
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47 });
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48 this.term.on("exit", function () {
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49 ss.alive = false;
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50 /* Wait for all the data to get collected */
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51 setTimeout(ss.cleanup, 1000);
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52 });
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53 this.conn.on("message", function (msg) {
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54 try {
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55 var msgObj = JSON.parse(msg.utf8Data);
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56 }
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57 catch (e) {
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58 return;
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59 }
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60 if (msgObj.t == "d") {
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61 var hexstr = msgObj["d"].replace(/[^0-9a-f]/gi, "");
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62 if (hexstr.length % 2 != 0) {
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63 return;
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64 }
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65 var keybuf = new Buffer(hexstr, "hex");
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66 ss.term.write(keybuf);
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67 }
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68 });
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69 this.conn.on("close", function (msg) {
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70 if (ss.alive)
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71 ss.term.kill('SIGHUP');
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72 console.log("WebSocket connection closed.");
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73 });
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74 this.cleanup = function () {
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75 /* Call this when the child is dead. */
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76 if (ss.alive)
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77 return;
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78 if (ss.conn.connected) {
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79 ss.conn.sendUTF(JSON.stringify({"t": "q"}));
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80 }
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81 };
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82 this.conn.sendUTF(JSON.stringify({"t": "l", "w": w, "h": h}));
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83 console.log("New WebSocket connection.");
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84 }
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85
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86 function TermSession(sessid, h, w) {
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87 /* Set up the sizes. */
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88 w = Math.floor(Number(w));
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89 if (!(w > 0 && w < 256))
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90 w = 80;