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RLG-Web: improvements to choices and status messaging. Server-side, have gamemux 'end' events include the name and game, so they can be sent to WebSockets connected to /status. This means a WebSocket client only needs to update its choice list when it gets a begin or end message with its own username. So it only needs to check /pstatus/<name> at those times and can stop polling.
author John "Elwin" Edwards <elwin@sdf.org>
date Mon, 16 Jul 2012 08:23:51 -0700
parents f56fdfeed01a
children 43340faa061c
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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 var gamemux = new events.EventEmitter();
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66
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67 /* Constructor. A TermSession handles a pty and the game running on it.
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68 * game: (String) Name of the game to launch.
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69 * lkey: (String, key) The user's id, a key into logins.
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70 * dims: (Array [Number, Number]) Height and width of the pty.
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71 * handlers: (Object) Key-value pairs, event names and functions to
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72 * install to handle them.
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73 * Events:
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74 * "open": Emitted on startup. Parameters: success (Boolean)
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75 * "data": Data generated by child. Parameters: buf (Buffer)
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76 * "exit": Child terminated. Parameters: none
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77 */
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78 function TermSession(game, lkey, dims, handlers) {
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79 var ss = this;
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