Mercurial > hg > rlgwebd

annotate webtty.js @ 45:1bbd0e76ba92

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
RLG-Web: put the game options into a table. Create a nice table of options when the player logs in.
author John "Elwin" Edwards <elwin@sdf.org>
date Sat, 09 Jun 2012 15:22:56 -0700
parents 7466927c17a5
children e4773ac5d4d5
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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 var http = require('http');
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
3 var url = require('url');
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
4 var path = require('path');
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
5 var fs = require('fs');
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
6 var child_process = require("child_process");
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
7
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
8 var serveStaticRoot = "/home/elwin/hk/nodejs/rlg/s/";
7
d1b3c3af34d6 WebTTY: switch terminal size to 80x25.
John "Elwin" Edwards <elwin@sdf.org>
parents: 3
diff changeset
9 var ptyhelp = "/home/elwin/hk/nodejs/rlg/ptyhelper";
0
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
10 var sessions = {};
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
11
2
98bf7c94c954 webtty.js: set up the environment and working directory.
John "Elwin" Edwards <elwin@sdf.org>
parents: 0
diff changeset
12 var env_dontuse = {"TMUX": true, "TMUX_PANE": true};
98bf7c94c954 webtty.js: set up the environment and working directory.
John "Elwin" Edwards <elwin@sdf.org>
parents: 0
diff changeset
13
0
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
14 /* Constructor for TermSessions. Note that it opens the terminal and
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
15 * adds itself to the sessions dict.
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
16 */
9
826a7ced69f8 Make the emulator screen resizable.
John "Elwin" Edwards <elwin@sdf.org>
parents: 7
diff changeset
17 function TermSession(sessid, h, w) {
826a7ced69f8 Make the emulator screen resizable.
John "Elwin" Edwards <elwin@sdf.org>
parents: 7
diff changeset
18 /* Set up the sizes. */
826a7ced69f8 Make the emulator screen resizable.
John "Elwin" Edwards <elwin@sdf.org>
parents: 7
diff changeset
19 w = Math.floor(Number(w));
826a7ced69f8 Make the emulator screen resizable.
John "Elwin" Edwards <elwin@sdf.org>
parents: 7
diff changeset
20 if (!(w > 0 && w < 256))
826a7ced69f8 Make the emulator screen resizable.
John "Elwin" Edwards <elwin@sdf.org>
parents: 7
diff changeset
21 w = 80;
826a7ced69f8 Make the emulator screen resizable.
John "Elwin" Edwards <elwin@sdf.org>
parents: 7
diff changeset
22 this.w = w;
826a7ced69f8 Make the emulator screen resizable.
John "Elwin" Edwards <elwin@sdf.org>
parents: 7
diff changeset
23 h = Math.floor(Number(h));
826a7ced69f8 Make the emulator screen resizable.
John "Elwin" Edwards <elwin@sdf.org>
parents: 7
diff changeset
24 if (!(h > 0 && h < 256))
826a7ced69f8 Make the emulator screen resizable.
John "Elwin" Edwards <elwin@sdf.org>
parents: 7
diff changeset
25 h = 25;
826a7ced69f8 Make the emulator screen resizable.
John "Elwin" Edwards <elwin@sdf.org>
parents: 7
diff changeset
26 this.h = h;
826a7ced69f8 Make the emulator screen resizable.
John "Elwin" Edwards <elwin@sdf.org>
parents: 7
diff changeset
27 /* Customize the environment. */
2
98bf7c94c954 webtty.js: set up the environment and working directory.
John "Elwin" Edwards <elwin@sdf.org>
parents: 0
diff changeset
28 var childenv = {};
98bf7c94c954 webtty.js: set up the environment and working directory.
John "Elwin" Edwards <elwin@sdf.org>
parents: 0
diff changeset
29 for (var key in process.env) {
98bf7c94c954 webtty.js: set up the environment and working directory.
John "Elwin" Edwards <elwin@sdf.org>
parents: 0
diff changeset
30 if (!(key in env_dontuse))
98bf7c94c954 webtty.js: set up the environment and working directory.
John "Elwin" Edwards <elwin@sdf.org>
parents: 0
diff changeset
31 childenv[key] = process.env[key];
98bf7c94c954 webtty.js: set up the environment and working directory.
John "Elwin" Edwards <elwin@sdf.org>
parents: 0
diff changeset
32 }
9
826a7ced69f8 Make the emulator screen resizable.
John "Elwin" Edwards <elwin@sdf.org>
parents: 7
diff changeset
33 childenv["PTYHELPER"] = String(this.h) + "x" + String(this.w);
2
98bf7c94c954 webtty.js: set up the environment and working directory.
John "Elwin" Edwards <elwin@sdf.org>
parents: 0
diff changeset
34 // Should setsid get set?
98bf7c94c954 webtty.js: set up the environment and working directory.
John "Elwin" Edwards <elwin@sdf.org>
parents: 0
diff changeset
35 var spawnopts = {"env": childenv, "cwd": process.env["HOME"]};
98bf7c94c954 webtty.js: set up the environment and working directory.
John "Elwin" Edwards <elwin@sdf.org>
parents: 0
diff changeset
36 this.child = child_process.spawn(ptyhelp, ["bash"], spawnopts);
0
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
37 var ss = this;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
38 /* Eventually we'll need to make sure the sessid isn't in use yet. */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
39 this.sessid = sessid;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
40 this.alive = true;
15
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
41 this.data = []; // Buffer for the process' output.
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
42 this.nsend = 0; // Number to use for the next message sent.
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
43 this.nrecv = 0; // Number expected on the next message received.
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
44 this.msgQ = []; // Queue for messages that arrived out of order.
0
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
45 this.child.stdout.on("data", function (buf) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
46 ss.data.push(buf);
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 this.child.stderr.on("data", function (buf) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
49 ss.data.push(buf);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
50 });
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
51 this.child.on("exit", function (code, signal) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
52 ss.exitcode = (code != null ? code : 255);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
53 ss.alive = false;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
54 /* Wait for all the data to get collected */
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
55 setTimeout(ss.cleanup, 1000);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
56 });
15
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
57 this.write = function (data, n) {
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
58 if (!this.alive) {
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
59 /* Throw some kind of exception? */
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
60 return;
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
61 }
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
62 if (n !== this.nrecv) {
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
63 console.log("Session " + this.sessid + ": Expected message " + this.nrecv + ", got " + n);
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
64 }
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
65 this.nrecv = n + 1;
7466927c17a5 webtty.js: check message order.
John "Elwin" Edwards <elwin@sdf.org>
parents: 13
diff changeset
66 this.child.stdin.write(data);
0
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
67 };
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
68 this.read = function () {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
69 if (this.data.length == 0)
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
70 return null;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
71 var pos = 0;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
72 var i = 0;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
73 for (i = 0; i < this.data.length; i++)
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
74 pos += this.data[i].length;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
75 var nbuf = new Buffer(pos);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
76 var tptr;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
77 pos = 0;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
78 while (this.data.length > 0) {
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
79 tptr = this.data.shift();
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
80 tptr.copy(nbuf, pos);
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
81 pos += tptr.length;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
82 }
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
83 return nbuf;
bd412f63ce0d Put this project under version control, finally.
John "Elwin" Edwards <elwin@sdf.org>
parents:
diff changeset
84 };
bd412f63ce0d Put this project under version control, finally.