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annotate rlgwebd.js @ 160:ed837da65e5f

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RLGWebD: Clean up code related to session timestamps. TermSessions now store the timestamp of the latest data. This removes the need to use fstat() to calculate idle times. The reaper() function is removed. It may be useful to find another way to remove old login keys.
author John "Elwin" Edwards
date Sat, 03 Jan 2015 17:39:15 -0500
parents a613380ffdc2
children 5a7e7ec136c8
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1 #!/usr/bin/env node
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2
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3 var http = require('http');
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4 var net = require('net');
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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 events = require('events');
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9 var child_process = require('child_process');
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10 // Dependencies
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11 var posix = require("posix");
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12 var pty = require("pty.js");
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13 var WebSocketServer = require("websocket").server;
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15 /* Configuration variables */
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16 // The first file is NOT in the chroot.
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17 var ctlsocket = "/var/local/rlgwebd/ctl";
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18 var httpPort = 8080;
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19 var chrootDir = "/var/dgl/";
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20 var dropToUser = "rodney";
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21 var serveStaticRoot = "/var/www/"; // inside the chroot
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23 /* Data on the games available. */
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24 var games = {
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25 "rogue3": {
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26 "name": "Rogue V3",
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27 "uname": "rogue3",
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28 "suffix": ".r3sav",
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29 "path": "/usr/bin/rogue3",
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30 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
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31 },
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32 "rogue4": {
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33 "name": "Rogue V4",
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34 "uname": "rogue4",
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35 "suffix": ".r4sav",
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36 "path": "/usr/bin/rogue4",
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37 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
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38 },
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39 "rogue5": {
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40 "name": "Rogue V5",
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41 "uname": "rogue5",
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42 "suffix": ".r5sav",
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43 "path": "/usr/bin/rogue5",
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44 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
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45 },
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46 "srogue": {
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47 "name": "Super-Rogue",
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48 "uname": "srogue",
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49 "suffix": ".srsav",
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50 "path": "/usr/bin/srogue",
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51 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
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52 },
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53 "arogue5": {
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54 "name": "Advanced Rogue 5",
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55 "uname": "arogue5",
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56 "suffix": ".ar5sav",
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57 "path": "/usr/bin/arogue5",
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58 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
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59 }
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60 };
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61
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62 /* Global state */
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63 var logins = {};
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64 var sessions = {};
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65 var dglgames = {};
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66 var allowlogin = true;
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67 var gamemux = new events.EventEmitter();
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68
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69 /* Constructor. A TermSession handles a pty and the game running on it.
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70 * game: (String) Name of the game to launch.
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71 * lkey: (String, key) The user's id, a key into logins.
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72 * dims: (Array [Number, Number]) Height and width of the pty.
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73 * handlers: (Object) Key-value pairs, event names and functions to
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74 * install to handle them.
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75 * Events:
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76 * "open": Emitted on startup. Parameters: success (Boolean)
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77 * "data": Data generated by child. Parameters: buf (Buffer)
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78 * "exit": Child terminated. Parameters: none
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79 */
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80 function TermSession(game, lkey, dims, handlers) {