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ssh kitten: Dont transfer terminfo if any of the -Nnf arguments are passed to ssh

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This commit is contained in:
Kovid Goyal 2018-06-01 20:33:57 +05:30
parent b752d1ca48
commit cd80a85d2d
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 19 additions and 12 deletions
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31
kittens/ssh/main.py
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@ -2,6 +2,7 @@
# vim:fileencoding=utf-8
# License: GPL v3 Copyright: 2018, Kovid Goyal <kovid at kovidgoyal.net>
import os
import subprocess
import sys
@ -42,14 +43,18 @@ exec -a "-$shell_name" "$0"
def parse_ssh_args(args):
boolean_ssh_args = {'-' + x for x in '46AaCfGgKkMNnqsTtVvXxYy'}
other_ssh_args = {'-' + x for x in 'bBcDeEFIJlLmOopQRSWw'}
passthrough_args = {'-' + x for x in 'Nnf'}
ssh_args = []
server_args = []
expecting_option_val = False
passthrough = False
for arg in args:
if server_args:
server_args.append(arg)
continue
if arg.startswith('-'):
if arg in passthrough_args:
passthrough = True
if arg in boolean_ssh_args:
ssh_args.append(arg)
continue
@ -65,22 +70,24 @@ def parse_ssh_args(args):
server_args.append(arg)
if not server_args:
raise SystemExit('Must specify server to connect to')
return ssh_args, server_args
return ssh_args, server_args, passthrough
def main(args):
ssh_args, server_args = parse_ssh_args(args[1:])
terminfo = subprocess.check_output(['infocmp']).decode('utf-8')
sh_script = SHELL_SCRIPT.replace('TERMINFO', terminfo, 1)
if len(server_args) > 1:
command_to_execute = ["'{}'".format(c.replace("'", """'"'"'""")) for c in server_args[1:]]
command_to_execute = 'cmd=({}); exec "$cmd"'.format(' '.join(command_to_execute))
ssh_args, server_args, passthrough = parse_ssh_args(args[1:])
if passthrough:
cmd = ['ssh'] + ssh_args + server_args
else:
command_to_execute = ''
sh_script = sh_script.replace('EXEC_CMD', command_to_execute)
cmd = ['ssh'] + ssh_args + ['-t', server_args[0], sh_script] + server_args[1:]
p = subprocess.Popen(cmd)
raise SystemExit(p.wait())
terminfo = subprocess.check_output(['infocmp']).decode('utf-8')
sh_script = SHELL_SCRIPT.replace('TERMINFO', terminfo, 1)
if len(server_args) > 1:
command_to_execute = ["'{}'".format(c.replace("'", """'"'"'""")) for c in server_args[1:]]
command_to_execute = 'cmd=({}); exec "$cmd"'.format(' '.join(command_to_execute))
else:
command_to_execute = ''
sh_script = sh_script.replace('EXEC_CMD', command_to_execute)
cmd = ['ssh'] + ssh_args + ['-t', server_args[0], sh_script] + server_args[1:]
os.execvp('ssh', cmd)
if __name__ == '__main__':