RLGWebD: webtty.js annotate

annotate webtty.js @ 143:f1676e81c80a

sqlickrypt: add support for salted SHA-512 passwords, and fix NULL bug. Passwords will now be securely encrypted with random salt. Also avoid storing NULL in the database, because that makes dgamelaunch segfault.

author	John "Elwin" Edwards
date	Sun, 20 Oct 2013 21:19:13 -0700
parents	789c094675f4
children	c4a32007d2dc

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
137 f14e92f6d955 webtty: don't hardcode paths. John "Elwin" Edwards parents: 86 diff changeset	2
f14e92f6d955 webtty: don't hardcode paths. John "Elwin" Edwards parents: 86 diff changeset	3 var localModules = '/usr/lib/node_modules/';
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	4 var http = require('http');
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');
137 f14e92f6d955 webtty: don't hardcode paths. John "Elwin" Edwards parents: 86 diff changeset	8 var pty = require(path.join(localModules, "pty.js"));
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	9 var child_process = require("child_process");
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	10 var webSocketServer = require(path.join(localModules, "websocket")).server;
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	11
137 f14e92f6d955 webtty: don't hardcode paths. John "Elwin" Edwards parents: 86 diff changeset	12 var serveStaticRoot = fs.realpathSync(".");
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	13 var sessions = {};
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	14 var sessionsWS = {};
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	15
2 98bf7c94c954 webtty.js: set up the environment and working directory. John "Elwin" Edwards <elwin@sdf.org> parents: 0 diff changeset	16 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	17
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	18 /* 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	19 * adds itself to the sessions dict.
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	20 */
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	21 function TermSessionWS(conn, h, w) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	22 var ss = this;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	23 /* Set up the sizes. */
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	24 w = Math.floor(Number(w));
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	25 if (!(w > 0 && w < 256))
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	26 w = 80;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	27 this.w = w;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	28 h = Math.floor(Number(h));
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	29 if (!(h > 0 && h < 256))
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	30 h = 25;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	31 this.h = h;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	32 this.conn = conn;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	33 /* Customize the environment. */
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	34 var childenv = {};
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	35 for (var key in process.env) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	36 if (!(key in env_dontuse))
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	37 childenv[key] = process.env[key];
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	38 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	39 var spawnopts = {"env": childenv, "cwd": process.env["HOME"],
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	40 "rows": this.h, "cols": this.w};
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	41 this.term = pty.spawn("bash", [], spawnopts);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	42 this.alive = true;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	43 this.term.on("data", function (datastr) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	44 var buf = new Buffer(datastr);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	45 if (ss.conn.connected)
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	46 ss.conn.sendUTF(JSON.stringify({"t": "d", "d": buf.toString("hex")}));
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	47 });
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	48 this.term.on("exit", function () {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	49 ss.alive = false;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	50 /* Wait for all the data to get collected */
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	51 setTimeout(ss.cleanup, 1000);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	52 });
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	53 this.conn.on("message", function (msg) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	54 try {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	55 var msgObj = JSON.parse(msg.utf8Data);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	56 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	57 catch (e) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	58 return;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	59 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	60 if (msgObj.t == "d") {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	61 var hexstr = msgObj["d"].replace(/[^0-9a-f]/gi, "");
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	62 if (hexstr.length % 2 != 0) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	63 return;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	64 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	65 var keybuf = new Buffer(hexstr, "hex");
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	66 ss.term.write(keybuf);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	67 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	68 });
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	69 this.conn.on("close", function (msg) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	70 if (ss.alive)
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	71 ss.term.kill('SIGHUP');
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	72 console.log("WebSocket connection closed.");
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	73 });
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	74 this.cleanup = function () {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	75 /* Call this when the child is dead. */
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	76 if (ss.alive)
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	77 return;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	78 if (ss.conn.connected) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	79 ss.conn.sendUTF(JSON.stringify({"t": "q"}));
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	80 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	81 };
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	82 this.conn.sendUTF(JSON.stringify({"t": "l", "w": w, "h": h}));
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	83 console.log("New WebSocket connection.");
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	84 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	85
9 826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	86 function TermSession(sessid, h, w) {
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	87 /* Set up the sizes. */
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	88 w = Math.floor(Number(w));
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	89 if (!(w > 0 && w < 256))
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	90 w = 80;
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	91 this.w = w;
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	92 h = Math.floor(Number(h));
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	93 if (!(h > 0 && h < 256))
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	94 h = 25;
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	95 this.h = h;
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	96 /* Customize the environment. */
2 98bf7c94c954 webtty.js: set up the environment and working directory. John "Elwin" Edwards <elwin@sdf.org> parents: 0 diff changeset	97 var childenv = {};
98bf7c94c954 webtty.js: set up the environment and working directory. John "Elwin" Edwards <elwin@sdf.org> parents: 0 diff changeset	98 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	99 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	100 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	101 }
86 ad4229cf8321 WebTTY: use the pty.js module. John "Elwin" Edwards <elwin@sdf.org> parents: 81 diff changeset	102 var spawnopts = {"env": childenv, "cwd": process.env["HOME"],
ad4229cf8321 WebTTY: use the pty.js module. John "Elwin" Edwards <elwin@sdf.org> parents: 81 diff changeset	103 "rows": this.h, "cols": this.w};
ad4229cf8321 WebTTY: use the pty.js module. John "Elwin" Edwards <elwin@sdf.org> parents: 81 diff changeset	104 this.term = pty.spawn("bash", [], spawnopts);
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	105 var ss = this;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	106 /* 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	107 this.sessid = sessid;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	108 this.alive = true;
15 7466927c17a5 webtty.js: check message order. John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	109 this.data = []; // Buffer for the process' output.
7466927c17a5 webtty.js: check message order. John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	110 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	111 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	112 this.msgQ = []; // Queue for messages that arrived out of order.
86 ad4229cf8321 WebTTY: use the pty.js module. John "Elwin" Edwards <elwin@sdf.org> parents: 81 diff changeset	113 this.term.on("data", function (buf) {
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	114 ss.data.push(buf);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	115 });
86 ad4229cf8321 WebTTY: use the pty.js module. John "Elwin" Edwards <elwin@sdf.org> parents: 81 diff changeset	116 this.term.on("exit", function () {
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	117 ss.alive = false;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	118 /* 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	119 setTimeout(ss.cleanup, 1000);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	120 });
15 7466927c17a5 webtty.js: check message order. John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	121 this.write = function (data, n) {
7466927c17a5 webtty.js: check message order. John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	122 if (!this.alive) {
7466927c17a5 webtty.js: check message order. John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	123 /* Throw some kind of exception? */
7466927c17a5 webtty.js: check message order. John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	124 return;
7466927c17a5 webtty.js: check message order. John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	125 }
7466927c17a5 webtty.js: check message order. John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	126 if (n !== this.nrecv) {
7466927c17a5 webtty.js: check message order. John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	127 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	128 }
7466927c17a5 webtty.js: check message order. John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	129 this.nrecv = n + 1;
86 ad4229cf8321 WebTTY: use the pty.js module. John "Elwin" Edwards <elwin@sdf.org> parents: 81 diff changeset	130 this.term.write(data);
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	131 };
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	132 this.read = function () {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	133 if (this.data.length == 0)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	134 return null;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	135 var pos = 0;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	136 var i = 0;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	137 for (i = 0; i < this.data.length; i++)
86 ad4229cf8321 WebTTY: use the pty.js module. John "Elwin" Edwards <elwin@sdf.org> parents: 81 diff changeset	138 pos += Buffer.byteLength(this.data[i]);
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	139 var nbuf = new Buffer(pos);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	140 var tptr;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	141 pos = 0;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	142 while (this.data.length > 0) {
86 ad4229cf8321 WebTTY: use the pty.js module. John "Elwin" Edwards <elwin@sdf.org> parents: 81 diff changeset	143 tptr = new Buffer(this.data.shift());
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	144 tptr.copy(nbuf, pos);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	145 pos += tptr.length;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	146 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	147 return nbuf;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	148 };
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	149 this.close = function () {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	150 if (this.alive)
86 ad4229cf8321 WebTTY: use the pty.js module. John "Elwin" Edwards <elwin@sdf.org> parents: 81 diff changeset	151 this.term.kill('SIGHUP');
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	152 };
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	153 this.cleanup = function () {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	154 /* Call this when the child is dead. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	155 if (this.alive)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	156 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	157 /* Give the client a chance to read any leftover data. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	158 if (ss.data.length > 0)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	159 setTimeout(ss.remove, 8000);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	160 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	161 ss.remove();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	162 };
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	163 this.remove = function () {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	164 delete sessions[ss.sessid];
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	165 console.log("Session " + this.sessid + " removed.");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	166 };
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	167 sessions[sessid] = this;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	168 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	169
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	170 function randkey() {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	171 rnum = Math.floor(Math.random() * 65536 * 65536);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	172 hexstr = rnum.toString(16);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	173 while (hexstr.length < 8)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	174 hexstr = "0" + hexstr;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	175 return hexstr;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	176 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	177
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	178 /* Returns a list of the cookies in the request, obviously. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	179 function getCookies(req) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	180 cookies = [];
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	181 if ("cookie" in req.headers) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	182 cookstrs = req.headers["cookie"].split("; ");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	183 for (var i = 0; i < cookstrs.length; i++) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	184 eqsign = cookstrs[i].indexOf("=");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	185 if (eqsign > 0) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	186 name = cookstrs[i].slice(0, eqsign).toLowerCase();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	187 val = cookstrs[i].slice(eqsign + 1);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	188 cookies[name] = val;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	189 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	190 else if (eqsign < 0)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	191 cookies[cookstrs[i]] = null;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	192 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	193 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	194 return cookies;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	195 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	196
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	197 function urlDec(encstr) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	198 var decstr = "";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	199 var tnum;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	200 for (var i = 0; i < encstr.length; i++)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	201 {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	202 if (encstr.charAt(i) == "+")
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	203 decstr += " ";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	204 else if (encstr.charAt(i) == "%")
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	205 {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	206 tnum = Number("0x" + encstr.slice(i + 1, 2));
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	207 if (!isNaN(tnum) && tnum >= 0)
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	208 decstr += String.fromCharCode(tnum);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	209 i += 2;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	210 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	211 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	212 decstr += encstr.charAt(i);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	213 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	214 return decstr;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	215 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	216
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	217 /* Returns the contents of a form */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	218 function getFormValues(formtext) {
13 bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 11 diff changeset	219 var jsonobj;
bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 11 diff changeset	220 try {
bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 11 diff changeset	221 jsonobj = JSON.parse(formtext);
bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 11 diff changeset	222 } catch (e) {
bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 11 diff changeset	223 if (e instanceof SyntaxError)
bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 11 diff changeset	224 return null;
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	225 }
13 bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 11 diff changeset	226 return jsonobj;
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	227 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	228
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	229 function login(req, res, formdata) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	230 var resheaders = {'Content-Type': 'text/plain'};
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	231 var sessid = randkey();
9 826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	232 /* The TermSession constructor will check these thoroughly too, but
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	233 * you can't be too suspicious of client-supplied data. */
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	234 var w = 80;
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	235 var h = 25;
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	236 var t;
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	237 if ("w" in formdata) {
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	238 t = Math.floor(Number(formdata["w"]));
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	239 if (t > 0 && t < 256)
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	240 w = t;
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	241 }
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	242 if ("h" in formdata) {
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	243 t = Math.floor(Number(formdata["h"]));
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	244 if (t > 0 && t < 256)
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	245 h = t;
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	246 }
826a7ced69f8 Make the emulator screen resizable. John "Elwin" Edwards <elwin@sdf.org> parents: 7 diff changeset	247 var nsession = new TermSession(sessid, h, w);
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	248 resheaders["Set-Cookie"] = "ID=" + sessid;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	249 res.writeHead(200, resheaders);
10 d051aad3e95f webtty: begin experimenting with JSON protocol. John "Elwin" Edwards <elwin@sdf.org> parents: 9 diff changeset	250 var logindict = {"login": true, "id": sessid, "w": w, "h": h};
d051aad3e95f webtty: begin experimenting with JSON protocol. John "Elwin" Edwards <elwin@sdf.org> parents: 9 diff changeset	251 res.write(JSON.stringify(logindict));
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	252 res.end();
86 ad4229cf8321 WebTTY: use the pty.js module. John "Elwin" Edwards <elwin@sdf.org> parents: 81 diff changeset	253 console.log("Started new session with key " + sessid + ", pid " + nsession.term.pid);
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	254 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	255 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	256
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	257 function findTermSession(req) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	258 var cookies = getCookies(req);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	259 if ("id" in cookies) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	260 var sessid = cookies["id"];
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	261 if (sessid in sessions) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	262 return sessions[sessid];
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	263 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	264 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	265 return null;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	266 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	267
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	268 function serveStatic(req, res, fname) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	269 var nname = path.normalize(fname);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	270 if (nname == "" \|\| nname == "/")
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	271 nname = "index.html";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	272 if (nname.match(/\/$/))
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	273 path.join(nname, "index.html"); /* it was a directory */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	274 var realname = path.join(serveStaticRoot, nname);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	275 var extension = path.extname(realname);
81 e4773ac5d4d5 Switch to node v0.8. John "Elwin" Edwards <elwin@sdf.org> parents: 15 diff changeset	276 fs.exists(realname, function (exists) {
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	277 var resheaders = {};
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	278 if (!exists \|\| !extension \|\| extension == ".html")
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	279 resheaders["Content-Type"] = "text/html";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	280 else if (extension == ".png")
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	281 resheaders["Content-Type"] = "image/png";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	282 else if (extension == ".css")
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	283 resheaders["Content-Type"] = "text/css";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	284 else if (extension == ".js")
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	285 resheaders["Content-Type"] = "text/javascript";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	286 else if (extension == ".svg")
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	287 resheaders["Content-Type"] = "image/svg+xml";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	288 else
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	289 resheaders["Content-Type"] = "application/octet-stream";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	290 if (exists) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	291 /* Not nice, not sensible. First see if it's readable, then respond
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	292 * 200 or 500. Don't throw nasty errors. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	293 res.writeHead(200, resheaders);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	294 fs.readFile(realname, function (error, data) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	295 if (error) throw error;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	296 res.write(data);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	297 res.end();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	298 });
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	299 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	300 else {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	301 res.writeHead(404, resheaders);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	302 res.write("<html><head><title>" + nname + "</title></head>\n<body><h1>" + nname + " Not Found</h1></body></html>\n");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	303 res.end();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	304 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	305 });
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	306 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	307 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	308
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	309 function readFeed(res, term) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	310 res.writeHead(200, { "Content-Type": "text/plain" });
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	311 if (term) {
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	312 var answer = {};
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	313 var result = term.read();
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	314 if (result == null) {
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	315 answer["t"] = "n";
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	316 }
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	317 else {
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	318 answer["t"] = "d";
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	319 answer["d"] = result.toString("hex");
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	320 answer["n"] = term.nsend++;
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	321 }
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	322 res.write(JSON.stringify(answer));
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	323 res.end();
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	324 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	325 else {
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	326 sendError(res, 1);
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	327 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	328 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	329
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	330 var errorcodes = [ "Generic Error", "Not logged in", "Invalid data" ];
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	331
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	332 function sendError(res, ecode) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	333 res.writeHead(200, { "Content-Type": "text/plain" });
11 481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	334 if (!(ecode >= 0 && ecode < errorcodes.length))
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	335 ecode = 0;
481dcee353c9 webtty: switch all server responses to JSON. John "Elwin" Edwards <elwin@sdf.org> parents: 10 diff changeset	336 res.write(JSON.stringify({"t": "E", "c": ecode, "s": errorcodes[ecode]}));
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	337 res.end();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	338 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	339
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	340 function handler(req, res) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	341 /* default headers for the response */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	342 var resheaders = {'Content-Type': 'text/html'};
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	343 /* The request body will be added to this as it arrives. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	344 var reqbody = "";
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	345 var formdata;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	346
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	347 /* Register a listener to get the body. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	348 function moredata(chunk) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	349 reqbody += chunk;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	350 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	351 req.on('data', moredata);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	352
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	353 /* This will send the response once the whole request is here. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	354 function respond() {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	355 var target = url.parse(req.url).pathname;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	356 var cterm = findTermSession(req);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	357 /* First figure out if the client is POSTing to a command interface. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	358 if (req.method == 'POST') {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	359 formdata = getFormValues(reqbody);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	360 if (target == '/feed') {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	361 if (!cterm) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	362 sendError(res, 1);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	363 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	364 }
13 bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 11 diff changeset	365 if (formdata["t"] == "q") {
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	366 /* The client wants to quit. */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	367 // FIXME need to send a message back to the client
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	368 cterm.close();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	369 }
13 bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 11 diff changeset	370 else if (formdata["t"] == "d" && typeof(formdata["d"]) == "string") {
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	371 /* process the keys */
13 bf7c26d0b66d webtty: switch upward protocol to JSON John "Elwin" Edwards <elwin@sdf.org> parents: 11 diff changeset	372 hexstr = formdata["d"].replace(/[^0-9a-f]/gi, "");
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	373 if (hexstr.length % 2 != 0) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	374 sendError(res, 2);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	375 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	376 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	377 keybuf = new Buffer(hexstr, "hex");
15 7466927c17a5 webtty.js: check message order. John "Elwin" Edwards <elwin@sdf.org> parents: 13 diff changeset	378 cterm.write(keybuf, formdata["n"]);
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	379 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	380 readFeed(res, cterm);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	381 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	382 else if (target == "/login") {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	383 login(req, res, formdata);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	384 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	385 else {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	386 res.writeHead(405, resheaders);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	387 res.end();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	388 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	389 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	390 else if (req.method == 'GET' \|\| req.method == 'HEAD') {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	391 if (target == '/feed') {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	392 if (!cterm) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	393 sendError(res, 1);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	394 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	395 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	396 readFeed(res, cterm);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	397 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	398 /* Default page, create a new term */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	399 /* FIXME New term not created anymore, is a special case still needed? */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	400 else if (target == '/') {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	401 serveStatic(req, res, "/");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	402 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	403 else /* Go look for it in the filesystem */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	404 serveStatic(req, res, target);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	405 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	406 else { /* Some other method */
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	407 res.writeHead(501, resheaders);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	408 res.write("<html><head><title>501</title></head>\n<body><h1>501 Not Implemented</h1></body></html>\n");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	409 res.end();
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	410 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	411 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	412 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	413 req.on('end', respond);
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	414
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	415 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	416
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	417 process.on("exit", function () {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	418 for (var sessid in sessions) {
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	419 if (sessions[sessid].alive)
86 ad4229cf8321 WebTTY: use the pty.js module. John "Elwin" Edwards <elwin@sdf.org> parents: 81 diff changeset	420 sessions[sessid].term.kill('SIGHUP');
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	421 }
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	422 console.log("Quitting...");
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	423 return;
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	424 });
bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	425
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	426 function wsRespond(req) {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	427 var w, h, conn;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	428 if (req.resourceURL.pathname == "/sock") {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	429 w = parseInt(req.resourceURL.query.w);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	430 if (isNaN(w) \|\| w <= 0 \|\| w > 256)
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	431 w = 80;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	432 h = parseInt(req.resourceURL.query.h);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	433 if (isNaN(h) \|\| h <= 0 \|\| h > 256)
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	434 h = 25;
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	435 conn = req.accept(null, req.origin);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	436 new TermSessionWS(conn, h, w);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	437 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	438 else {
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	439 req.reject(404, "No such resource.");
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	440 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	441 }
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	442
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	443 /* The pty.js module doesn't wait for the processes it spawns, so they
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	444 * become zombies, which leads to unpleasantness when the system runs
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	445 * out of process table entries. But if the child_process module is
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	446 * initialized and a child spawned, node will continue waiting for any
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	447 * children.
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	448 * Someday, some developer will get the bright idea of tracking how many
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	449 * processes the child_process module has spawned, and not waiting if
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	450 * it's zero. Until then, the following useless line will protect us
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	451 * from the zombie hordes.
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	452 * Figuring this out was almost as interesting as the Rogue bug where
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	453 * printf debugging altered whether the high score list was checked.
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	454 */
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	455 child_process.spawn("/bin/true");
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	456
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	457 process.env["TERM"] = "xterm-256color";
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	458 var webServer = http.createServer(handler);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	459 webServer.listen(8080, "127.0.0.1");
0 bd412f63ce0d Put this project under version control, finally. John "Elwin" Edwards <elwin@sdf.org> parents: diff changeset	460 console.log('Server running at http://127.0.0.1:8080/');
140 789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	461 var wsServer = new webSocketServer({"httpServer": webServer});
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	462 wsServer.on("request", wsRespond);
789c094675f4 WebTTY: use WebSockets when possible. John "Elwin" Edwards parents: 137 diff changeset	463 console.log('WebSockets online');