RLGWebD: rlgwebd.js annotate

annotate rlgwebd.js @ 148:bac9c3b01692

Check that the ttyrec stream has an fd before passing it to fstat. The stream might not have an fd, presumably if the open isn't complete. Calling fstat then causes crashes.

author	John "Elwin" Edwards
date	Mon, 06 Jan 2014 09:11:35 -0500
parents	81a8e7aa4687
children	245a2959f504

rev	line source
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	1 #!/usr/bin/env node
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	2
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	3 var http = require('http');
28 2ad2b6491aa9 rlgwebd.js: become a real daemon. John "Elwin" Edwards <elwin@sdf.org> parents: 27 diff changeset	4 var net = require('net');
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	5 var url = require('url');
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	6 var path = require('path');
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	7 var fs = require('fs');
55 96815eae4ebe RLG-Web: make multiple watchers possible. John "Elwin" Edwards <elwin@sdf.org> parents: 49 diff changeset	8 var events = require('events');
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	9 var child_process = require('child_process');
141 1a156a7746a7 RLGWebD: use NODE_PATH to find modules. John "Elwin" Edwards parents: 139 diff changeset	10 // Dependencies
1a156a7746a7 RLGWebD: use NODE_PATH to find modules. John "Elwin" Edwards parents: 139 diff changeset	11 var posix = require("posix");
1a156a7746a7 RLGWebD: use NODE_PATH to find modules. John "Elwin" Edwards parents: 139 diff changeset	12 var pty = require("pty.js");
1a156a7746a7 RLGWebD: use NODE_PATH to find modules. John "Elwin" Edwards parents: 139 diff changeset	13 var WebSocketServer = require("websocket").server;
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	14
30 b5570a594266 rlgwebd.js: listen on any address John "Elwin" Edwards <elwin@sdf.org> parents: 29 diff changeset	15 /* Configuration variables */
139 dcd07c1d846a Replace the daemon module with posix. John "Elwin" Edwards parents: 132 diff changeset	16 // The first file is NOT in the chroot.
28 2ad2b6491aa9 rlgwebd.js: become a real daemon. John "Elwin" Edwards <elwin@sdf.org> parents: 27 diff changeset	17 var ctlsocket = "/var/local/rlgwebd/ctl";
30 b5570a594266 rlgwebd.js: listen on any address John "Elwin" Edwards <elwin@sdf.org> parents: 29 diff changeset	18 var httpPort = 8080;
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	19 var chrootDir = "/var/dgl/";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	20 var dropToUID = 501;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	21 var dropToGID = 501;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	22 var serveStaticRoot = "/var/www/"; // inside the chroot
36 a0387f112bcf RLG-Web: autosave idle games. John "Elwin" Edwards <elwin@sdf.org> parents: 34 diff changeset	23 var playtimeout = 3600000; // Idle time before games are autosaved, in ms
30 b5570a594266 rlgwebd.js: listen on any address John "Elwin" Edwards <elwin@sdf.org> parents: 29 diff changeset	24
39 e8ac0e3d2614 RLG-Web: separate logging in and starting a game. John "Elwin" Edwards <elwin@sdf.org> parents: 37 diff changeset	25 /* Data on the games available. */
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	26 var games = {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	27 "rogue3": {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	28 "name": "Rogue V3",
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	29 "uname": "rogue3",
42 8f6bc0df58fa rlgwebd.js: add a player status interface. John "Elwin" Edwards <elwin@sdf.org> parents: 40 diff changeset	30 "suffix": ".r3sav",
144 81a8e7aa4687 RLGWebD: game binaries have moved to /usr/bin. John "Elwin" Edwards parents: 142 diff changeset	31 "path": "/usr/bin/rogue3",
60 31bb3cf4f25f Make sure watchers start with completely drawn screens. John "Elwin" Edwards <elwin@sdf.org> parents: 55 diff changeset	32 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	33 },
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	34 "rogue4": {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	35 "name": "Rogue V4",
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	36 "uname": "rogue4",
42 8f6bc0df58fa rlgwebd.js: add a player status interface. John "Elwin" Edwards <elwin@sdf.org> parents: 40 diff changeset	37 "suffix": ".r4sav",
144 81a8e7aa4687 RLGWebD: game binaries have moved to /usr/bin. John "Elwin" Edwards parents: 142 diff changeset	38 "path": "/usr/bin/rogue4",
60 31bb3cf4f25f Make sure watchers start with completely drawn screens. John "Elwin" Edwards <elwin@sdf.org> parents: 55 diff changeset	39 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	40 },
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	41 "rogue5": {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	42 "name": "Rogue V5",
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	43 "uname": "rogue5",
42 8f6bc0df58fa rlgwebd.js: add a player status interface. John "Elwin" Edwards <elwin@sdf.org> parents: 40 diff changeset	44 "suffix": ".r5sav",
144 81a8e7aa4687 RLGWebD: game binaries have moved to /usr/bin. John "Elwin" Edwards parents: 142 diff changeset	45 "path": "/usr/bin/rogue5",
60 31bb3cf4f25f Make sure watchers start with completely drawn screens. John "Elwin" Edwards <elwin@sdf.org> parents: 55 diff changeset	46 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	47 },
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	48 "srogue": {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	49 "name": "Super-Rogue",
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	50 "uname": "srogue",
42 8f6bc0df58fa rlgwebd.js: add a player status interface. John "Elwin" Edwards <elwin@sdf.org> parents: 40 diff changeset	51 "suffix": ".srsav",
144 81a8e7aa4687 RLGWebD: game binaries have moved to /usr/bin. John "Elwin" Edwards parents: 142 diff changeset	52 "path": "/usr/bin/srogue",
121 077adfeea038 Correct the clear sequence for srogue. John "Elwin" Edwards <elwin@sdf.org> parents: 120 diff changeset	53 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
120 54979d35611a Add support for Advanced Rogue 5. John "Elwin" Edwards <elwin@sdf.org> parents: 113 diff changeset	54 },
54979d35611a Add support for Advanced Rogue 5. John "Elwin" Edwards <elwin@sdf.org> parents: 113 diff changeset	55 "arogue5": {
54979d35611a Add support for Advanced Rogue 5. John "Elwin" Edwards <elwin@sdf.org> parents: 113 diff changeset	56 "name": "Advanced Rogue 5",
54979d35611a Add support for Advanced Rogue 5. John "Elwin" Edwards <elwin@sdf.org> parents: 113 diff changeset	57 "uname": "arogue5",
54979d35611a Add support for Advanced Rogue 5. John "Elwin" Edwards <elwin@sdf.org> parents: 113 diff changeset	58 "suffix": ".ar5sav",
144 81a8e7aa4687 RLGWebD: game binaries have moved to /usr/bin. John "Elwin" Edwards parents: 142 diff changeset	59 "path": "/usr/bin/arogue5",
120 54979d35611a Add support for Advanced Rogue 5. John "Elwin" Edwards <elwin@sdf.org> parents: 113 diff changeset	60 "clear": new Buffer([27, 91, 72, 27, 91, 50, 74]) // CSI H CSI 2J
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	61 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	62 };
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	63
39 e8ac0e3d2614 RLG-Web: separate logging in and starting a game. John "Elwin" Edwards <elwin@sdf.org> parents: 37 diff changeset	64 /* Global state */
e8ac0e3d2614 RLG-Web: separate logging in and starting a game. John "Elwin" Edwards <elwin@sdf.org> parents: 37 diff changeset	65 var logins = {};
e8ac0e3d2614 RLG-Web: separate logging in and starting a game. John "Elwin" Edwards <elwin@sdf.org> parents: 37 diff changeset	66 var sessions = {};
55 96815eae4ebe RLG-Web: make multiple watchers possible. John "Elwin" Edwards <elwin@sdf.org> parents: 49 diff changeset	67 var clients = {};
39 e8ac0e3d2614 RLG-Web: separate logging in and starting a game. John "Elwin" Edwards <elwin@sdf.org> parents: 37 diff changeset	68 var allowlogin = true;
55 96815eae4ebe RLG-Web: make multiple watchers possible. John "Elwin" Edwards <elwin@sdf.org> parents: 49 diff changeset	69 var nextsession = 0;
104 7d444ba4739e RLG-Web server: send status events over WebSockets. John "Elwin" Edwards <elwin@sdf.org> parents: 103 diff changeset	70 var gamemux = new events.EventEmitter();
39 e8ac0e3d2614 RLG-Web: separate logging in and starting a game. John "Elwin" Edwards <elwin@sdf.org> parents: 37 diff changeset	71
55 96815eae4ebe RLG-Web: make multiple watchers possible. John "Elwin" Edwards <elwin@sdf.org> parents: 49 diff changeset	72 /* Constructor. A TermSession handles a pty and the game running on it.
96815eae4ebe RLG-Web: make multiple watchers possible. John "Elwin" Edwards <elwin@sdf.org> parents: 49 diff changeset	73 * game: (String) Name of the game to launch.
96815eae4ebe RLG-Web: make multiple watchers possible. John "Elwin" Edwards <elwin@sdf.org> parents: 49 diff changeset	74 * lkey: (String, key) The user's id, a key into logins.
96815eae4ebe RLG-Web: make multiple watchers possible. John "Elwin" Edwards <elwin@sdf.org> parents: 49 diff changeset	75 * dims: (Array [Number, Number]) Height and width of the pty.
96815eae4ebe RLG-Web: make multiple watchers possible. John "Elwin" Edwards <elwin@sdf.org> parents: 49 diff changeset	76 * handlers: (Object) Key-value pairs, event names and functions to
96815eae4ebe RLG-Web: make multiple watchers possible. John "Elwin" Edwards <elwin@sdf.org> parents: 49 diff changeset	77 * install to handle them.
96815eae4ebe RLG-Web: make multiple watchers possible. John "Elwin" Edwards <elwin@sdf.org> parents: 49 diff changeset	78 * Events:
96815eae4ebe RLG-Web: make multiple watchers possible. John "Elwin" Edwards <elwin@sdf.org> parents: 49 diff changeset	79 * "open": Emitted on startup. Parameters: success (Boolean)
96815eae4ebe RLG-Web: make multiple watchers possible. John "Elwin" Edwards <elwin@sdf.org> parents: 49 diff changeset	80 * "data": Data generated by child. Parameters: buf (Buffer)
87 bd2cf6dda28d RLG-Web: use the pty module. John "Elwin" Edwards <elwin@sdf.org> parents: 85 diff