Re: Getting to an SSH account over a HTTP proxy
problem. I do not want to create my own SSH client and, AFAICT, there is no SSH client in Twisted. The library also seem to have some problems with handling HTTP proxies in a transparent way:http://twistedmatrix.com/trac/ticket/1774 -- mvh Björn There is a ssh implementation in twisted. http://twistedmatrix.com/users/z3p/files/conch-talk.html Are you able to authenticate and run commands using a ssh client on port 80? I will try to post an example if possible. -N -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting to an SSH account over a HTTP proxy
On 22 Jan 2007 17:16:35 -0800, Nanjundi [EMAIL PROTECTED] wrote: BJörn Lindqvist wrote: I want to use Python to connect to a SSH account over a HTTP proxy to automate some operations. I thought paramiko would be able to do that, but it can not (it seems). Is there some other Python module that can do what I want? -- mvh Björn Did you take a look at twisted library? twistedmatrix.com http://twistedmatrix.com/projects/core/documentation/howto/clients.html I haven't tried to connect over port 80, but its worth a try. I looked at Twisted, but I did not understand how it could solve my problem. I do not want to create my own SSH client and, AFAICT, there is no SSH client in Twisted. The library also seem to have some problems with handling HTTP proxies in a transparent way: http://twistedmatrix.com/trac/ticket/1774 -- mvh Björn -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting to an SSH account over a HTTP proxy
On 1/22/07, Yu-Xi Lim [EMAIL PROTECTED] wrote: He's referring to the HTTP CONNECT method, which can tunnel arbitrary TCP connections, not just HTTP. The IETF draft for this is titled Tunneling TCP based protocols through Web proxy servers. AFAIK, there are no Python modules which support that. The protocol itself is fairly simply though, so it shouldn't be too hard to write your own wrapper or proxy for the client side. Things get a little more complicated if you have to authenticate with the proxy first. The proxy in question requires authentication. Do you mean that I should be able to write something that handles the communication to the proxy and then run a library like paramiko over that? I have no idea how to do that. -- mvh Björn -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting to an SSH account over a HTTP proxy
use pexpect to set the prompt after the login.
class Login(General):
Class spawning an ssh expect instance
def __init__(self, user, host, pwd, cfg_name=None, log=None):
if cfg_name:
self.testcell = test_config(cfg_name)
self.spawn = pexpect.spawn(ssh [EMAIL PROTECTED] % (user,
host), [], 100)
if log:
self.spawn.logfile = log
sshreply = self.spawn.expect([Last login, assword,
connecting])
if sshreply == 1:
self.spawn.sendline(pwd)
self.spawn.expect(Last login)
elif sshreply == 2:
time.sleep(0.1)
self.spawn.sendline(yes)
print self.spawn.after
Login(user, host, cfg_name, log)
time.sleep(1)
self.prompt=prompt_chg(self.spawn, PROMPT:)
self.spawn.sendline(uname -a)
self.spawn.expect(self.prompt)
On Jan 23, 10:28 am, Willi Richert [EMAIL PROTECTED] wrote:
Am Dienstag, 23. Januar 2007 02:16 schrieb Nanjundi:
BJörn Lindqvist wrote:
I want to use Python to connect to a SSH account over a HTTP proxy to
automate some operations. I thought paramiko would be able to do that,
but it can not (it seems).
Is there some other Python module that can do what I want?
--
mvh Björn
Did you take a look at twisted library?
twistedmatrix.com
http://twistedmatrix.com/projects/core/documentation/howto/clients.html
I haven't tried to connect over port 80, but its worth a try.
-NIf you need it for automation you might want to
usepexpect:http://pexpect.sourceforge.net/
It listens to the tty-stream and simulates a user typing in commands. It is
very useful, e.g. if you want to start processes on many machines over ssh.
If there are gateways/firewalls between - no problem just use a
second sendline('ssh [EMAIL PROTECTED]')
The only problem is the regular expression: If e.g. you use a custom $PS1
variable for your prompt you have to account for that.
Regards,
wr
--
http://mail.python.org/mailman/listinfo/python-list
Re: Getting to an SSH account over a HTTP proxy
Am Dienstag, 23. Januar 2007 02:16 schrieb Nanjundi:
BJörn Lindqvist wrote:
I want to use Python to connect to a SSH account over a HTTP proxy to
automate some operations. I thought paramiko would be able to do that,
but it can not (it seems).
Is there some other Python module that can do what I want?
--
mvh Björn
Did you take a look at twisted library?
twistedmatrix.com
http://twistedmatrix.com/projects/core/documentation/howto/clients.html
I haven't tried to connect over port 80, but its worth a try.
-N
If you need it for automation you might want to use pexpect:
http://pexpect.sourceforge.net/
It listens to the tty-stream and simulates a user typing in commands. It is
very useful, e.g. if you want to start processes on many machines over ssh.
If there are gateways/firewalls between - no problem just use a
second sendline('ssh [EMAIL PROTECTED]')
The only problem is the regular expression: If e.g. you use a custom $PS1
variable for your prompt you have to account for that.
Regards,
wr
--
http://mail.python.org/mailman/listinfo/python-list
Re: Getting to an SSH account over a HTTP proxy
Jorgen Grahn [EMAIL PROTECTED] skriver: I am pretty sure there is. Or at least TCP-over-HTTP, or IP-over-HTTP. An acquaintance of mine used it to tonnel home through a corporate firewall. I think -- I didn't want to know the details. Ypu can tunnel ip over anything. (Even email if you like...) Nu tunnel out from that company was based on http-proxy. A small program called connect (the final version I used was by Shun-ichi Goto and under GPL.) Bascilly it makes a http-proxt connect to an other site (my sshd) Then using sshd and pppd as program inte other end makes a good way to tunnel IP also :-) / Anders -- http://anders.arnholm.nu/Keep on Balping -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting to an SSH account over a HTTP proxy
BJörn Lindqvist wrote: I want to use Python to connect to a SSH account over a HTTP proxy to automate some operations. I thought paramiko would be able to do that, but it can not (it seems). Is there some other Python module that can do what I want? Is there anything that can do what you want? Last time I checked there is no such thing as SSH-over-HTTP. Are you sure that is possible? Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting to an SSH account over a HTTP proxy
Diez B. Roggisch wrote: BJörn Lindqvist wrote: I want to use Python to connect to a SSH account over a HTTP proxy to automate some operations. I thought paramiko would be able to do that, but it can not (it seems). Is there some other Python module that can do what I want? Is there anything that can do what you want? Last time I checked there is no such thing as SSH-over-HTTP. Are you sure that is possible? He's referring to the HTTP CONNECT method, which can tunnel arbitrary TCP connections, not just HTTP. The IETF draft for this is titled Tunneling TCP based protocols through Web proxy servers. AFAIK, there are no Python modules which support that. The protocol itself is fairly simply though, so it shouldn't be too hard to write your own wrapper or proxy for the client side. Things get a little more complicated if you have to authenticate with the proxy first. -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting to an SSH account over a HTTP proxy
On Mon, 22 Jan 2007 14:40:49 +0100, Diez B. Roggisch [EMAIL PROTECTED] wrote: BJörn Lindqvist wrote: I want to use Python to connect to a SSH account over a HTTP proxy to automate some operations. I thought paramiko would be able to do that, but it can not (it seems). Is there some other Python module that can do what I want? Is there anything that can do what you want? Last time I checked there is no such thing as SSH-over-HTTP. Are you sure that is possible? I am pretty sure there is. Or at least TCP-over-HTTP, or IP-over-HTTP. An acquaintance of mine used it to tonnel home through a corporate firewall. I think -- I didn't want to know the details. If you implement in the same way as ssh tunnels, the application doesn't need to know anything about it -- you just talk to a TCP port on localhost. Good for everyone involved. /Jorgen -- // Jorgen Grahn grahn@Ph'nglui mglw'nafh Cthulhu \X/ snipabacken.dyndns.org R'lyeh wgah'nagl fhtagn! -- http://mail.python.org/mailman/listinfo/python-list
Re: Getting to an SSH account over a HTTP proxy
BJörn Lindqvist wrote: I want to use Python to connect to a SSH account over a HTTP proxy to automate some operations. I thought paramiko would be able to do that, but it can not (it seems). Is there some other Python module that can do what I want? -- mvh Björn Did you take a look at twisted library? twistedmatrix.com http://twistedmatrix.com/projects/core/documentation/howto/clients.html I haven't tried to connect over port 80, but its worth a try. -N -- http://mail.python.org/mailman/listinfo/python-list
