wsproxy, wstelnet: wrap command, WS telnet client.
wswrapper:
Getting the wswrapper.c LD_PRELOAD model working has turned out to
involve too many dark corners of the glibc/POSIX file descriptor
space. I realized that 95% of what I want can be accomplished by
adding a "wrap command" mode to wsproxy.
The code is still there for now, but consider it experimental at
best. Minor fix to dup2 and add dup and dup3 logging.
wsproxy Wrap Command:
In wsproxy wrap command mode, a command line is specified instead
of a target address and port. wsproxy then uses a much simpler
LD_PRELOAD library, rebind.so, to move intercept any bind() system
calls made by the program. If the bind() call is for the wsproxy
listen port number then the real bind() system call is issued for
an alternate (free high) port on loopback/localhost. wsproxy then
forwards from the listen address/port to the moved port.
The --wrap-mode argument takes three options that determine the
behavior of wsproxy when the wrapped command returns an exit code
(exit or daemonizing): ignore, exit, respawn.
For example, this runs vncserver on turns port 5901 into
a WebSockets port (rebind.so must be built first):
./utils/wsproxy.py --wrap-mode=ignore 5901 -- vncserver :1
The vncserver command backgrounds itself so the wrap mode is set
to "ignore" so that wsproxy keeps running even after it receives
an exit code from vncserver.
wstelnet:
To demonstrate the wrap command mode, I added WebSockets telnet
client.
For example, this runs telnetd (krb5-telnetd) on turns port 2023
into a WebSockets port (using "respawn" mode since telnetd exits
after each connection closes):
sudo ./utils/wsproxy.py --wrap-mode=respawn 2023 -- telnetd -debug 2023
Then the utils/wstelnet.html page can be used to connect to the
telnetd server on port 2023. The telnet client includes VT100.js
(from http://code.google.com/p/sshconsole) which handles the
terminal emulation and rendering.
rebind:
The rebind LD_PRELOAD library is used by wsproxy in wrap command
mode to intercept bind() system calls and move the port to
a different port on loopback/localhost. The rebind.so library can
be built by running make in the utils directory.
The rebind library can be used separately from wsproxy by setting
the REBIND_OLD_PORT and REBIND_NEW_PORT environment variables
prior to executing a command. For example:
export export REBIND_PORT_OLD="23"
export export REBIND_PORT_NEW="65023"
LD_PRELOAD=./rebind.so telnetd -debug 23
Alternately, the rebind script does the same thing:
rebind 23 65023 telnetd -debug 23
Other changes/notes:
- wsproxy no longer daemonizes by default. Remove -f/--foreground
option and add -D/--deamon option.
- When wsproxy is used to wrap a command in "respawn" mode, the
command will not be respawn more often than 3 times within 10
seconds.
- Move getKeysym routine out of Canvas object so that it can be called
directly.
2011-01-12 19:15:11 +00:00
|
|
|
/*
|
|
|
|
|
* WebSockets telnet client
|
|
|
|
|
* Copyright (C) 2011 Joel Martin
|
|
|
|
|
* Licensed under LGPL-3 (see LICENSE.txt)
|
|
|
|
|
*
|
2011-01-12 22:55:31 +00:00
|
|
|
* Includes VT100.js from:
|
wsproxy, wstelnet: wrap command, WS telnet client.
wswrapper:
Getting the wswrapper.c LD_PRELOAD model working has turned out to
involve too many dark corners of the glibc/POSIX file descriptor
space. I realized that 95% of what I want can be accomplished by
adding a "wrap command" mode to wsproxy.
The code is still there for now, but consider it experimental at
best. Minor fix to dup2 and add dup and dup3 logging.
wsproxy Wrap Command:
In wsproxy wrap command mode, a command line is specified instead
of a target address and port. wsproxy then uses a much simpler
LD_PRELOAD library, rebind.so, to move intercept any bind() system
calls made by the program. If the bind() call is for the wsproxy
listen port number then the real bind() system call is issued for
an alternate (free high) port on loopback/localhost. wsproxy then
forwards from the listen address/port to the moved port.
The --wrap-mode argument takes three options that determine the
behavior of wsproxy when the wrapped command returns an exit code
(exit or daemonizing): ignore, exit, respawn.
For example, this runs vncserver on turns port 5901 into
a WebSockets port (rebind.so must be built first):
./utils/wsproxy.py --wrap-mode=ignore 5901 -- vncserver :1
The vncserver command backgrounds itself so the wrap mode is set
to "ignore" so that wsproxy keeps running even after it receives
an exit code from vncserver.
wstelnet:
To demonstrate the wrap command mode, I added WebSockets telnet
client.
For example, this runs telnetd (krb5-telnetd) on turns port 2023
into a WebSockets port (using "respawn" mode since telnetd exits
after each connection closes):
sudo ./utils/wsproxy.py --wrap-mode=respawn 2023 -- telnetd -debug 2023
Then the utils/wstelnet.html page can be used to connect to the
telnetd server on port 2023. The telnet client includes VT100.js
(from http://code.google.com/p/sshconsole) which handles the
terminal emulation and rendering.
rebind:
The rebind LD_PRELOAD library is used by wsproxy in wrap command
mode to intercept bind() system calls and move the port to
a different port on loopback/localhost. The rebind.so library can
be built by running make in the utils directory.
The rebind library can be used separately from wsproxy by setting
the REBIND_OLD_PORT and REBIND_NEW_PORT environment variables
prior to executing a command. For example:
export export REBIND_PORT_OLD="23"
export export REBIND_PORT_NEW="65023"
LD_PRELOAD=./rebind.so telnetd -debug 23
Alternately, the rebind script does the same thing:
rebind 23 65023 telnetd -debug 23
Other changes/notes:
- wsproxy no longer daemonizes by default. Remove -f/--foreground
option and add -D/--deamon option.
- When wsproxy is used to wrap a command in "respawn" mode, the
command will not be respawn more often than 3 times within 10
seconds.
- Move getKeysym routine out of Canvas object so that it can be called
directly.
2011-01-12 19:15:11 +00:00
|
|
|
* http://code.google.com/p/sshconsole
|
|
|
|
|
* Which was modified from:
|
|
|
|
|
* http://fzort.org/bi/o.php#vt100_js
|
|
|
|
|
*
|
|
|
|
|
* Telnet protocol:
|
|
|
|
|
* http://www.networksorcery.com/enp/protocol/telnet.htm
|
|
|
|
|
* http://www.networksorcery.com/enp/rfc/rfc1091.txt
|
|
|
|
|
*
|
|
|
|
|
* ANSI escape sequeneces:
|
|
|
|
|
* http://en.wikipedia.org/wiki/ANSI_escape_code
|
|
|
|
|
* http://ascii-table.com/ansi-escape-sequences-vt-100.php
|
|
|
|
|
* http://www.termsys.demon.co.uk/vtansi.htm
|
|
|
|
|
* http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
|
|
|
|
|
*
|
|
|
|
|
* ASCII codes:
|
|
|
|
|
* http://en.wikipedia.org/wiki/ASCII
|
|
|
|
|
* http://www.hobbyprojects.com/ascii-table/ascii-table.html
|
|
|
|
|
*
|
|
|
|
|
* Other web consoles:
|
|
|
|
|
* http://stackoverflow.com/questions/244750/ajax-console-window-with-ansi-vt100-support
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
function Telnet(target, connect_callback, disconnect_callback) {
|
|
|
|
|
|
|
|
|
|
var that = {}, // Public API interface
|
|
|
|
|
vt100, ws, sQ = [];
|
|
|
|
|
termType = "VT100";
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Array.prototype.pushStr = function (str) {
|
|
|
|
|
var n = str.length;
|
|
|
|
|
for (var i=0; i < n; i++) {
|
|
|
|
|
this.push(str.charCodeAt(i));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
function do_send() {
|
|
|
|
|
if (sQ.length > 0) {
|
|
|
|
|
Util.Debug("Sending " + sQ);
|
2011-01-13 06:28:22 +00:00
|
|
|
ws.send(sQ);
|
wsproxy, wstelnet: wrap command, WS telnet client.
wswrapper:
Getting the wswrapper.c LD_PRELOAD model working has turned out to
involve too many dark corners of the glibc/POSIX file descriptor
space. I realized that 95% of what I want can be accomplished by
adding a "wrap command" mode to wsproxy.
The code is still there for now, but consider it experimental at
best. Minor fix to dup2 and add dup and dup3 logging.
wsproxy Wrap Command:
In wsproxy wrap command mode, a command line is specified instead
of a target address and port. wsproxy then uses a much simpler
LD_PRELOAD library, rebind.so, to move intercept any bind() system
calls made by the program. If the bind() call is for the wsproxy
listen port number then the real bind() system call is issued for
an alternate (free high) port on loopback/localhost. wsproxy then
forwards from the listen address/port to the moved port.
The --wrap-mode argument takes three options that determine the
behavior of wsproxy when the wrapped command returns an exit code
(exit or daemonizing): ignore, exit, respawn.
For example, this runs vncserver on turns port 5901 into
a WebSockets port (rebind.so must be built first):
./utils/wsproxy.py --wrap-mode=ignore 5901 -- vncserver :1
The vncserver command backgrounds itself so the wrap mode is set
to "ignore" so that wsproxy keeps running even after it receives
an exit code from vncserver.
wstelnet:
To demonstrate the wrap command mode, I added WebSockets telnet
client.
For example, this runs telnetd (krb5-telnetd) on turns port 2023
into a WebSockets port (using "respawn" mode since telnetd exits
after each connection closes):
sudo ./utils/wsproxy.py --wrap-mode=respawn 2023 -- telnetd -debug 2023
Then the utils/wstelnet.html page can be used to connect to the
telnetd server on port 2023. The telnet client includes VT100.js
(from http://code.google.com/p/sshconsole) which handles the
terminal emulation and rendering.
rebind:
The rebind LD_PRELOAD library is used by wsproxy in wrap command
mode to intercept bind() system calls and move the port to
a different port on loopback/localhost. The rebind.so library can
be built by running make in the utils directory.
The rebind library can be used separately from wsproxy by setting
the REBIND_OLD_PORT and REBIND_NEW_PORT environment variables
prior to executing a command. For example:
export export REBIND_PORT_OLD="23"
export export REBIND_PORT_NEW="65023"
LD_PRELOAD=./rebind.so telnetd -debug 23
Alternately, the rebind script does the same thing:
rebind 23 65023 telnetd -debug 23
Other changes/notes:
- wsproxy no longer daemonizes by default. Remove -f/--foreground
option and add -D/--deamon option.
- When wsproxy is used to wrap a command in "respawn" mode, the
command will not be respawn more often than 3 times within 10
seconds.
- Move getKeysym routine out of Canvas object so that it can be called
directly.
2011-01-12 19:15:11 +00:00
|
|
|
sQ = [];
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2011-01-13 06:28:22 +00:00
|
|
|
function do_recv() {
|
wsproxy, wstelnet: wrap command, WS telnet client.
wswrapper:
Getting the wswrapper.c LD_PRELOAD model working has turned out to
involve too many dark corners of the glibc/POSIX file descriptor
space. I realized that 95% of what I want can be accomplished by
adding a "wrap command" mode to wsproxy.
The code is still there for now, but consider it experimental at
best. Minor fix to dup2 and add dup and dup3 logging.
wsproxy Wrap Command:
In wsproxy wrap command mode, a command line is specified instead
of a target address and port. wsproxy then uses a much simpler
LD_PRELOAD library, rebind.so, to move intercept any bind() system
calls made by the program. If the bind() call is for the wsproxy
listen port number then the real bind() system call is issued for
an alternate (free high) port on loopback/localhost. wsproxy then
forwards from the listen address/port to the moved port.
The --wrap-mode argument takes three options that determine the
behavior of wsproxy when the wrapped command returns an exit code
(exit or daemonizing): ignore, exit, respawn.
For example, this runs vncserver on turns port 5901 into
a WebSockets port (rebind.so must be built first):
./utils/wsproxy.py --wrap-mode=ignore 5901 -- vncserver :1
The vncserver command backgrounds itself so the wrap mode is set
to "ignore" so that wsproxy keeps running even after it receives
an exit code from vncserver.
wstelnet:
To demonstrate the wrap command mode, I added WebSockets telnet
client.
For example, this runs telnetd (krb5-telnetd) on turns port 2023
into a WebSockets port (using "respawn" mode since telnetd exits
after each connection closes):
sudo ./utils/wsproxy.py --wrap-mode=respawn 2023 -- telnetd -debug 2023
Then the utils/wstelnet.html page can be used to connect to the
telnetd server on port 2023. The telnet client includes VT100.js
(from http://code.google.com/p/sshconsole) which handles the
terminal emulation and rendering.
rebind:
The rebind LD_PRELOAD library is used by wsproxy in wrap command
mode to intercept bind() system calls and move the port to
a different port on loopback/localhost. The rebind.so library can
be built by running make in the utils directory.
The rebind library can be used separately from wsproxy by setting
the REBIND_OLD_PORT and REBIND_NEW_PORT environment variables
prior to executing a command. For example:
export export REBIND_PORT_OLD="23"
export export REBIND_PORT_NEW="65023"
LD_PRELOAD=./rebind.so telnetd -debug 23
Alternately, the rebind script does the same thing:
rebind 23 65023 telnetd -debug 23
Other changes/notes:
- wsproxy no longer daemonizes by default. Remove -f/--foreground
option and add -D/--deamon option.
- When wsproxy is used to wrap a command in "respawn" mode, the
command will not be respawn more often than 3 times within 10
seconds.
- Move getKeysym routine out of Canvas object so that it can be called
directly.
2011-01-12 19:15:11 +00:00
|
|
|
//console.log(">> do_recv");
|
2011-01-13 06:28:22 +00:00
|
|
|
var arr = ws.rQshiftBytes(ws.rQlen()), str = "",
|
wsproxy, wstelnet: wrap command, WS telnet client.
wswrapper:
Getting the wswrapper.c LD_PRELOAD model working has turned out to
involve too many dark corners of the glibc/POSIX file descriptor
space. I realized that 95% of what I want can be accomplished by
adding a "wrap command" mode to wsproxy.
The code is still there for now, but consider it experimental at
best. Minor fix to dup2 and add dup and dup3 logging.
wsproxy Wrap Command:
In wsproxy wrap command mode, a command line is specified instead
of a target address and port. wsproxy then uses a much simpler
LD_PRELOAD library, rebind.so, to move intercept any bind() system
calls made by the program. If the bind() call is for the wsproxy
listen port number then the real bind() system call is issued for
an alternate (free high) port on loopback/localhost. wsproxy then
forwards from the listen address/port to the moved port.
The --wrap-mode argument takes three options that determine the
behavior of wsproxy when the wrapped command returns an exit code
(exit or daemonizing): ignore, exit, respawn.
For example, this runs vncserver on turns port 5901 into
a WebSockets port (rebind.so must be built first):
./utils/wsproxy.py --wrap-mode=ignore 5901 -- vncserver :1
The vncserver command backgrounds itself so the wrap mode is set
to "ignore" so that wsproxy keeps running even after it receives
an exit code from vncserver.
wstelnet:
To demonstrate the wrap command mode, I added WebSockets telnet
client.
For example, this runs telnetd (krb5-telnetd) on turns port 2023
into a WebSockets port (using "respawn" mode since telnetd exits
after each connection closes):
sudo ./utils/wsproxy.py --wrap-mode=respawn 2023 -- telnetd -debug 2023
Then the utils/wstelnet.html page can be used to connect to the
telnetd server on port 2023. The telnet client includes VT100.js
(from http://code.google.com/p/sshconsole) which handles the
terminal emulation and rendering.
rebind:
The rebind LD_PRELOAD library is used by wsproxy in wrap command
mode to intercept bind() system calls and move the port to
a different port on loopback/localhost. The rebind.so library can
be built by running make in the utils directory.
The rebind library can be used separately from wsproxy by setting
the REBIND_OLD_PORT and REBIND_NEW_PORT environment variables
prior to executing a command. For example:
export export REBIND_PORT_OLD="23"
export export REBIND_PORT_NEW="65023"
LD_PRELOAD=./rebind.so telnetd -debug 23
Alternately, the rebind script does the same thing:
rebind 23 65023 telnetd -debug 23
Other changes/notes:
- wsproxy no longer daemonizes by default. Remove -f/--foreground
option and add -D/--deamon option.
- When wsproxy is used to wrap a command in "respawn" mode, the
command will not be respawn more often than 3 times within 10
seconds.
- Move getKeysym routine out of Canvas object so that it can be called
directly.
2011-01-12 19:15:11 +00:00
|
|
|
chr, cmd, code, value;
|
|
|
|
|
|
|
|
|
|
Util.Debug("Received array '" + arr + "'");
|
|
|
|
|
while (arr.length > 0) {
|
|
|
|
|
chr = arr.shift();
|
|
|
|
|
switch (chr) {
|
|
|
|
|
case 255: // IAC
|
|
|
|
|
cmd = chr;
|
|
|
|
|
code = arr.shift();
|
|
|
|
|
value = arr.shift();
|
|
|
|
|
switch (code) {
|
|
|
|
|
case 254: // DONT
|
|
|
|
|
Util.Debug("Got Cmd DONT '" + value + "', ignoring");
|
|
|
|
|
break;
|
|
|
|
|
case 253: // DO
|
|
|
|
|
Util.Debug("Got Cmd DO '" + value + "'");
|
|
|
|
|
if (value === 24) {
|
|
|
|
|
// Terminal type
|
|
|
|
|
Util.Info("Send WILL '" + value + "' (TERM-TYPE)");
|
|
|
|
|
sQ.push(255, 251, value);
|
|
|
|
|
} else {
|
|
|
|
|
// Refuse other DO requests with a WONT
|
|
|
|
|
Util.Debug("Send WONT '" + value + "'");
|
|
|
|
|
sQ.push(255, 252, value);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case 252: // WONT
|
|
|
|
|
Util.Debug("Got Cmd WONT '" + value + "', ignoring");
|
|
|
|
|
break;
|
|
|
|
|
case 251: // WILL
|
|
|
|
|
Util.Debug("Got Cmd WILL '" + value + "'");
|
|
|
|
|
if (value === 1) {
|
2011-01-13 18:19:47 +00:00
|
|
|
// Server will echo, turn off local echo
|
|
|
|
|
vt100.noecho();
|
wsproxy, wstelnet: wrap command, WS telnet client.
wswrapper:
Getting the wswrapper.c LD_PRELOAD model working has turned out to
involve too many dark corners of the glibc/POSIX file descriptor
space. I realized that 95% of what I want can be accomplished by
adding a "wrap command" mode to wsproxy.
The code is still there for now, but consider it experimental at
best. Minor fix to dup2 and add dup and dup3 logging.
wsproxy Wrap Command:
In wsproxy wrap command mode, a command line is specified instead
of a target address and port. wsproxy then uses a much simpler
LD_PRELOAD library, rebind.so, to move intercept any bind() system
calls made by the program. If the bind() call is for the wsproxy
listen port number then the real bind() system call is issued for
an alternate (free high) port on loopback/localhost. wsproxy then
forwards from the listen address/port to the moved port.
The --wrap-mode argument takes three options that determine the
behavior of wsproxy when the wrapped command returns an exit code
(exit or daemonizing): ignore, exit, respawn.
For example, this runs vncserver on turns port 5901 into
a WebSockets port (rebind.so must be built first):
./utils/wsproxy.py --wrap-mode=ignore 5901 -- vncserver :1
The vncserver command backgrounds itself so the wrap mode is set
to "ignore" so that wsproxy keeps running even after it receives
an exit code from vncserver.
wstelnet:
To demonstrate the wrap command mode, I added WebSockets telnet
client.
For example, this runs telnetd (krb5-telnetd) on turns port 2023
into a WebSockets port (using "respawn" mode since telnetd exits
after each connection closes):
sudo ./utils/wsproxy.py --wrap-mode=respawn 2023 -- telnetd -debug 2023
Then the utils/wstelnet.html page can be used to connect to the
telnetd server on port 2023. The telnet client includes VT100.js
(from http://code.google.com/p/sshconsole) which handles the
terminal emulation and rendering.
rebind:
The rebind LD_PRELOAD library is used by wsproxy in wrap command
mode to intercept bind() system calls and move the port to
a different port on loopback/localhost. The rebind.so library can
be built by running make in the utils directory.
The rebind library can be used separately from wsproxy by setting
the REBIND_OLD_PORT and REBIND_NEW_PORT environment variables
prior to executing a command. For example:
export export REBIND_PORT_OLD="23"
export export REBIND_PORT_NEW="65023"
LD_PRELOAD=./rebind.so telnetd -debug 23
Alternately, the rebind script does the same thing:
rebind 23 65023 telnetd -debug 23
Other changes/notes:
- wsproxy no longer daemonizes by default. Remove -f/--foreground
option and add -D/--deamon option.
- When wsproxy is used to wrap a command in "respawn" mode, the
command will not be respawn more often than 3 times within 10
seconds.
- Move getKeysym routine out of Canvas object so that it can be called
directly.
2011-01-12 19:15:11 +00:00
|
|
|
// Affirm echo with DO
|
|
|
|
|
Util.Info("Send Cmd DO '" + value + "' (echo)");
|
|
|
|
|
sQ.push(255, 253, value);
|
|
|
|
|
} else {
|
|
|
|
|
// Reject other WILL offers with a DONT
|
|
|
|
|
Util.Debug("Send Cmd DONT '" + value + "'");
|
|
|
|
|
sQ.push(255, 254, value);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
case 250: // SB (subnegotiation)
|
|
|
|
|
if (value === 24) {
|
|
|
|
|
Util.Info("Got IAC SB TERM-TYPE SEND(1) IAC SE");
|
|
|
|
|
// TERM-TYPE subnegotiation
|
|
|
|
|
if (arr[0] === 1 &&
|
|
|
|
|
arr[1] === 255 &&
|
|
|
|
|
arr[2] === 240) {
|
|
|
|
|
arr.shift(); arr.shift(); arr.shift();
|
|
|
|
|
Util.Info("Send IAC SB TERM-TYPE IS(0) '" +
|
|
|
|
|
termType + "' IAC SE");
|
|
|
|
|
sQ.push(255, 250, 24, 0);
|
|
|
|
|
sQ.pushStr(termType);
|
|
|
|
|
sQ.push(255, 240);
|
|
|
|
|
} else {
|
|
|
|
|
Util.Info("Invalid subnegotiation received" + arr);
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
Util.Info("Ignoring SB " + value);
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
Util.Info("Got Cmd " + cmd + " " + value + ", ignoring"); }
|
|
|
|
|
continue;
|
|
|
|
|
case 242: // Data Mark (Synch)
|
|
|
|
|
cmd = chr;
|
|
|
|
|
code = arr.shift();
|
|
|
|
|
value = arr.shift();
|
|
|
|
|
Util.Info("Ignoring Data Mark (Synch)");
|
|
|
|
|
break;
|
|
|
|
|
default: // everything else
|
|
|
|
|
str += String.fromCharCode(chr);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (sQ) {
|
|
|
|
|
do_send();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (str) {
|
|
|
|
|
vt100.write(str);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
//console.log("<< do_recv");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
that.connect = function(host, port, encrypt) {
|
|
|
|
|
var host = host,
|
|
|
|
|
port = port,
|
|
|
|
|
scheme = "ws://", uri;
|
|
|
|
|
|
|
|
|
|
Util.Debug(">> connect");
|
|
|
|
|
if ((!host) || (!port)) {
|
|
|
|
|
console.log("must set host and port");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (ws) {
|
|
|
|
|
ws.close();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (encrypt) {
|
|
|
|
|
scheme = "wss://";
|
|
|
|
|
}
|
|
|
|
|
uri = scheme + host + ":" + port;
|
|
|
|
|
Util.Info("connecting to " + uri);
|
|
|
|
|
|
2011-01-13 06:28:22 +00:00
|
|
|
ws.open(uri);
|
wsproxy, wstelnet: wrap command, WS telnet client.
wswrapper:
Getting the wswrapper.c LD_PRELOAD model working has turned out to
involve too many dark corners of the glibc/POSIX file descriptor
space. I realized that 95% of what I want can be accomplished by
adding a "wrap command" mode to wsproxy.
The code is still there for now, but consider it experimental at
best. Minor fix to dup2 and add dup and dup3 logging.
wsproxy Wrap Command:
In wsproxy wrap command mode, a command line is specified instead
of a target address and port. wsproxy then uses a much simpler
LD_PRELOAD library, rebind.so, to move intercept any bind() system
calls made by the program. If the bind() call is for the wsproxy
listen port number then the real bind() system call is issued for
an alternate (free high) port on loopback/localhost. wsproxy then
forwards from the listen address/port to the moved port.
The --wrap-mode argument takes three options that determine the
behavior of wsproxy when the wrapped command returns an exit code
(exit or daemonizing): ignore, exit, respawn.
For example, this runs vncserver on turns port 5901 into
a WebSockets port (rebind.so must be built first):
./utils/wsproxy.py --wrap-mode=ignore 5901 -- vncserver :1
The vncserver command backgrounds itself so the wrap mode is set
to "ignore" so that wsproxy keeps running even after it receives
an exit code from vncserver.
wstelnet:
To demonstrate the wrap command mode, I added WebSockets telnet
client.
For example, this runs telnetd (krb5-telnetd) on turns port 2023
into a WebSockets port (using "respawn" mode since telnetd exits
after each connection closes):
sudo ./utils/wsproxy.py --wrap-mode=respawn 2023 -- telnetd -debug 2023
Then the utils/wstelnet.html page can be used to connect to the
telnetd server on port 2023. The telnet client includes VT100.js
(from http://code.google.com/p/sshconsole) which handles the
terminal emulation and rendering.
rebind:
The rebind LD_PRELOAD library is used by wsproxy in wrap command
mode to intercept bind() system calls and move the port to
a different port on loopback/localhost. The rebind.so library can
be built by running make in the utils directory.
The rebind library can be used separately from wsproxy by setting
the REBIND_OLD_PORT and REBIND_NEW_PORT environment variables
prior to executing a command. For example:
export export REBIND_PORT_OLD="23"
export export REBIND_PORT_NEW="65023"
LD_PRELOAD=./rebind.so telnetd -debug 23
Alternately, the rebind script does the same thing:
rebind 23 65023 telnetd -debug 23
Other changes/notes:
- wsproxy no longer daemonizes by default. Remove -f/--foreground
option and add -D/--deamon option.
- When wsproxy is used to wrap a command in "respawn" mode, the
command will not be respawn more often than 3 times within 10
seconds.
- Move getKeysym routine out of Canvas object so that it can be called
directly.
2011-01-12 19:15:11 +00:00
|
|
|
|
|
|
|
|
Util.Debug("<< connect");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
that.disconnect = function() {
|
|
|
|
|
Util.Debug(">> disconnect");
|
|
|
|
|
if (ws) {
|
|
|
|
|
ws.close();
|
|
|
|
|
}
|
|
|
|
|
vt100.curs_set(true, false);
|
|
|
|
|
|
|
|
|
|
disconnect_callback();
|
|
|
|
|
Util.Debug("<< disconnect");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
function constructor() {
|
2011-01-13 06:28:22 +00:00
|
|
|
/* Initialize Websock object */
|
|
|
|
|
ws = new Websock();
|
|
|
|
|
|
|
|
|
|
ws.on('message', do_recv);
|
|
|
|
|
ws.on('open', function(e) {
|
|
|
|
|
Util.Info(">> WebSockets.onopen");
|
|
|
|
|
vt100.curs_set(true, true);
|
|
|
|
|
connect_callback();
|
|
|
|
|
Util.Info("<< WebSockets.onopen");
|
|
|
|
|
});
|
|
|
|
|
ws.on('close', function(e) {
|
|
|
|
|
Util.Info(">> WebSockets.onclose");
|
|
|
|
|
that.disconnect();
|
|
|
|
|
Util.Info("<< WebSockets.onclose");
|
|
|
|
|
});
|
|
|
|
|
ws.on('error', function(e) {
|
|
|
|
|
Util.Info(">> WebSockets.onerror");
|
|
|
|
|
that.disconnect();
|
|
|
|
|
Util.Info("<< WebSockets.onerror");
|
|
|
|
|
});
|
|
|
|
|
|
wsproxy, wstelnet: wrap command, WS telnet client.
wswrapper:
Getting the wswrapper.c LD_PRELOAD model working has turned out to
involve too many dark corners of the glibc/POSIX file descriptor
space. I realized that 95% of what I want can be accomplished by
adding a "wrap command" mode to wsproxy.
The code is still there for now, but consider it experimental at
best. Minor fix to dup2 and add dup and dup3 logging.
wsproxy Wrap Command:
In wsproxy wrap command mode, a command line is specified instead
of a target address and port. wsproxy then uses a much simpler
LD_PRELOAD library, rebind.so, to move intercept any bind() system
calls made by the program. If the bind() call is for the wsproxy
listen port number then the real bind() system call is issued for
an alternate (free high) port on loopback/localhost. wsproxy then
forwards from the listen address/port to the moved port.
The --wrap-mode argument takes three options that determine the
behavior of wsproxy when the wrapped command returns an exit code
(exit or daemonizing): ignore, exit, respawn.
For example, this runs vncserver on turns port 5901 into
a WebSockets port (rebind.so must be built first):
./utils/wsproxy.py --wrap-mode=ignore 5901 -- vncserver :1
The vncserver command backgrounds itself so the wrap mode is set
to "ignore" so that wsproxy keeps running even after it receives
an exit code from vncserver.
wstelnet:
To demonstrate the wrap command mode, I added WebSockets telnet
client.
For example, this runs telnetd (krb5-telnetd) on turns port 2023
into a WebSockets port (using "respawn" mode since telnetd exits
after each connection closes):
sudo ./utils/wsproxy.py --wrap-mode=respawn 2023 -- telnetd -debug 2023
Then the utils/wstelnet.html page can be used to connect to the
telnetd server on port 2023. The telnet client includes VT100.js
(from http://code.google.com/p/sshconsole) which handles the
terminal emulation and rendering.
rebind:
The rebind LD_PRELOAD library is used by wsproxy in wrap command
mode to intercept bind() system calls and move the port to
a different port on loopback/localhost. The rebind.so library can
be built by running make in the utils directory.
The rebind library can be used separately from wsproxy by setting
the REBIND_OLD_PORT and REBIND_NEW_PORT environment variables
prior to executing a command. For example:
export export REBIND_PORT_OLD="23"
export export REBIND_PORT_NEW="65023"
LD_PRELOAD=./rebind.so telnetd -debug 23
Alternately, the rebind script does the same thing:
rebind 23 65023 telnetd -debug 23
Other changes/notes:
- wsproxy no longer daemonizes by default. Remove -f/--foreground
option and add -D/--deamon option.
- When wsproxy is used to wrap a command in "respawn" mode, the
command will not be respawn more often than 3 times within 10
seconds.
- Move getKeysym routine out of Canvas object so that it can be called
directly.
2011-01-12 19:15:11 +00:00
|
|
|
/* Initialize the terminal emulator/renderer */
|
|
|
|
|
|
|
|
|
|
vt100 = new VT100(80, 24, target);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Override VT100 I/O routines
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
// Set handler for sending characters
|
|
|
|
|
vt100.getch(
|
|
|
|
|
function send_chr(chr, vt) {
|
|
|
|
|
var i;
|
|
|
|
|
Util.Debug(">> send_chr: " + chr);
|
|
|
|
|
for (i = 0; i < chr.length; i++) {
|
|
|
|
|
sQ.push(chr.charCodeAt(i));
|
|
|
|
|
}
|
|
|
|
|
do_send();
|
|
|
|
|
vt100.getch(send_chr);
|
|
|
|
|
}
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
vt100.debug = function(message) {
|
|
|
|
|
Util.Debug(message + "\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
vt100.warn = function(message) {
|
|
|
|
|
Util.Warn(message + "\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
vt100.curs_set = function(vis, grab, eventist)
|
|
|
|
|
{
|
|
|
|
|
this.debug("curs_set:: vis: " + vis + ", grab: " + grab);
|
|
|
|
|
if (vis !== undefined)
|
|
|
|
|
this.cursor_vis_ = (vis > 0);
|
|
|
|
|
if (eventist === undefined)
|
|
|
|
|
eventist = window;
|
|
|
|
|
if (grab === true || grab === false) {
|
|
|
|
|
if (grab === this.grab_events_)
|
|
|
|
|
return;
|
|
|
|
|
if (grab) {
|
|
|
|
|
this.grab_events_ = true;
|
|
|
|
|
VT100.the_vt_ = this;
|
|
|
|
|
Util.addEvent(eventist, 'keydown', vt100.key_down);
|
|
|
|
|
Util.addEvent(eventist, 'keyup', vt100.key_up);
|
|
|
|
|
} else {
|
|
|
|
|
Util.removeEvent(eventist, 'keydown', vt100.key_down);
|
|
|
|
|
Util.removeEvent(eventist, 'keyup', vt100.key_up);
|
|
|
|
|
this.grab_events_ = false;
|
|
|
|
|
VT100.the_vt_ = undefined;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
vt100.key_down = function(e) {
|
|
|
|
|
var vt = VT100.the_vt_, keysym, ch, str = "";
|
|
|
|
|
|
|
|
|
|
if (vt === undefined)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
keysym = getKeysym(e);
|
|
|
|
|
|
|
|
|
|
if (keysym < 128) {
|
|
|
|
|
if (e.ctrlKey) {
|
|
|
|
|
if (keysym == 64) {
|
|
|
|
|
// control 0
|
|
|
|
|
ch = 0;
|
|
|
|
|
} else if ((keysym >= 97) && (keysym <= 122)) {
|
|
|
|
|
// control codes 1-26
|
|
|
|
|
ch = keysym - 96;
|
|
|
|
|
} else if ((keysym >= 91) && (keysym <= 95)) {
|
|
|
|
|
// control codes 27-31
|
|
|
|
|
ch = keysym - 64;
|
|
|
|
|
} else {
|
|
|
|
|
Util.Info("Debug unknown control keysym: " + keysym);
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
ch = keysym;
|
|
|
|
|
}
|
|
|
|
|
str = String.fromCharCode(ch);
|
|
|
|
|
} else {
|
|
|
|
|
switch (keysym) {
|
|
|
|
|
case 65505: // Shift, do not send directly
|
|
|
|
|
break;
|
|
|
|
|
case 65507: // Ctrl, do not send directly
|
|
|
|
|
break;
|
|
|
|
|
case 65293: // Carriage return, line feed
|
|
|
|
|
str = '\n'; break;
|
|
|
|
|
case 65288: // Backspace
|
|
|
|
|
str = '\b'; break;
|
2015-07-06 22:54:28 +01:00
|
|
|
case 65289: // Tab
|
|
|
|
|
str = '\t'; break;
|
wsproxy, wstelnet: wrap command, WS telnet client.
wswrapper:
Getting the wswrapper.c LD_PRELOAD model working has turned out to
involve too many dark corners of the glibc/POSIX file descriptor
space. I realized that 95% of what I want can be accomplished by
adding a "wrap command" mode to wsproxy.
The code is still there for now, but consider it experimental at
best. Minor fix to dup2 and add dup and dup3 logging.
wsproxy Wrap Command:
In wsproxy wrap command mode, a command line is specified instead
of a target address and port. wsproxy then uses a much simpler
LD_PRELOAD library, rebind.so, to move intercept any bind() system
calls made by the program. If the bind() call is for the wsproxy
listen port number then the real bind() system call is issued for
an alternate (free high) port on loopback/localhost. wsproxy then
forwards from the listen address/port to the moved port.
The --wrap-mode argument takes three options that determine the
behavior of wsproxy when the wrapped command returns an exit code
(exit or daemonizing): ignore, exit, respawn.
For example, this runs vncserver on turns port 5901 into
a WebSockets port (rebind.so must be built first):
./utils/wsproxy.py --wrap-mode=ignore 5901 -- vncserver :1
The vncserver command backgrounds itself so the wrap mode is set
to "ignore" so that wsproxy keeps running even after it receives
an exit code from vncserver.
wstelnet:
To demonstrate the wrap command mode, I added WebSockets telnet
client.
For example, this runs telnetd (krb5-telnetd) on turns port 2023
into a WebSockets port (using "respawn" mode since telnetd exits
after each connection closes):
sudo ./utils/wsproxy.py --wrap-mode=respawn 2023 -- telnetd -debug 2023
Then the utils/wstelnet.html page can be used to connect to the
telnetd server on port 2023. The telnet client includes VT100.js
(from http://code.google.com/p/sshconsole) which handles the
terminal emulation and rendering.
rebind:
The rebind LD_PRELOAD library is used by wsproxy in wrap command
mode to intercept bind() system calls and move the port to
a different port on loopback/localhost. The rebind.so library can
be built by running make in the utils directory.
The rebind library can be used separately from wsproxy by setting
the REBIND_OLD_PORT and REBIND_NEW_PORT environment variables
prior to executing a command. For example:
export export REBIND_PORT_OLD="23"
export export REBIND_PORT_NEW="65023"
LD_PRELOAD=./rebind.so telnetd -debug 23
Alternately, the rebind script does the same thing:
rebind 23 65023 telnetd -debug 23
Other changes/notes:
- wsproxy no longer daemonizes by default. Remove -f/--foreground
option and add -D/--deamon option.
- When wsproxy is used to wrap a command in "respawn" mode, the
command will not be respawn more often than 3 times within 10
seconds.
- Move getKeysym routine out of Canvas object so that it can be called
directly.
2011-01-12 19:15:11 +00:00
|
|
|
case 65307: // Escape
|
|
|
|
|
str = '\x1b'; break;
|
|
|
|
|
case 65361: // Left arrow
|
|
|
|
|
str = '\x1b[D'; break;
|
|
|
|
|
case 65362: // Up arrow
|
|
|
|
|
str = '\x1b[A'; break;
|
|
|
|
|
case 65363: // Right arrow
|
|
|
|
|
str = '\x1b[C'; break;
|
|
|
|
|
case 65364: // Down arrow
|
|
|
|
|
str = '\x1b[B'; break;
|
|
|
|
|
default:
|
|
|
|
|
Util.Info("Unrecoginized keysym " + keysym);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (str) {
|
|
|
|
|
vt.key_buf_.push(str);
|
|
|
|
|
setTimeout(VT100.go_getch_, 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
Util.stopEvent(e);
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
vt100.key_up = function(e) {
|
|
|
|
|
var vt = VT100.the_vt_;
|
|
|
|
|
if (vt === undefined)
|
|
|
|
|
return true;
|
|
|
|
|
Util.stopEvent(e);
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
return that;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return constructor(); // Return the public API interface
|
|
|
|
|
|
|
|
|
|
} // End of Telnet()
|
