annotate rlgwebd.js @ 102:f34a286c51bd

RLG-Web server: code cleanup. Delete some TermSession code left over from the first attempt at Websockets. Also don't bother logging the disconnection of watchers after the game has ended.
author John "Elwin" Edwards <elwin@sdf.org>
date Fri, 13 Jul 2012 08:52:17 -0700
parents e59d68082664
children f30495f7ede8
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1 #!/usr/bin/env node
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2
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3 // If you can't quite trust node to find it on its own
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4 var localModules = '/usr/local/lib/node_modules/';
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5 var http = require('http');
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6 var net = require('net');
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7 var url = require('url');
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8 var path = require('path');
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9 var fs = require('fs');
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10 var events = require('events');
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11 var child_process = require('child_process');
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12 var daemon = require(path.join(localModules, "daemon"));
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13 var pty = require(path.join(localModules, "pty.js"));
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14 var WebSocketServer = require(path.join(localModules, "websocket")).server;
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16 /* Configuration variables */
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17 // These first two files are NOT in the chroot.
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18 var ctlsocket = "/var/local/rlgwebd/ctl";
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19 var logfile = "/var/local/rlgwebd/log";
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20 var httpPort = 8080;
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21 var chrootDir = "/var/dgl/";
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22 var dropToUID = 501;
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23 var dropToGID = 501;
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24 var serveStaticRoot = "/var/www/"; // inside the chroot
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25 var playtimeout = 3600000; // Idle time before games are autosaved, in ms
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27 /* Data on the games available. */
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28 var games = {
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29 "rogue3": {
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30 "name": "Rogue V3",
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31 "uname": "rogue3",
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32 "suffix": ".r3sav",
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33 "path": "/bin/rogue3",
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34 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
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35 },
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36 "rogue4": {
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37 "name": "Rogue V4",
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38 "uname": "rogue4",
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39 "suffix": ".r4sav",
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40 "path": "/bin/rogue4",
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41 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
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42 },
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43 "rogue5": {
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44 "name": "Rogue V5",
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45 "uname": "rogue5",
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46 "suffix": ".r5sav",
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47 "path": "/bin/rogue5",
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48 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
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49 },
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50 "srogue": {
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51 "name": "Super-Rogue",
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52 "uname": "srogue",
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53 "suffix": ".srsav",
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54 "path": "/bin/srogue",
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55 "clear": new Buffer([27, 91, 72, 27, 91, 74]) // CSI H CSI J
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56 }
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57 };
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58
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59 /* Global state */
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60 var logins = {};
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61 var sessions = {};
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62 var clients = {};
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63 var allowlogin = true;
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64 var nextsession = 0;
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65
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66 /* Constructor. A TermSession handles a pty and the game running on it.
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67 * game: (String) Name of the game to launch.
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68 * lkey: (String, key) The user's id, a key into logins.
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69 * dims: (Array [Number, Number]) Height and width of the pty.
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70 * handlers: (Object) Key-value pairs, event names and functions to
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71 * install to handle them.
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72 * Events:
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73 * "open": Emitted on startup. Parameters: success (Boolean)
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74 * "data": Data generated by child. Parameters: buf (Buffer)
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75 * "exit": Child terminated. Parameters: none
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76 */
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77 function TermSession(game, lkey, dims, handlers) {
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78 var ss = this;
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79 /* Subclass EventEmitter to do the hard work. */
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