153 lines
4.7 KiB
Python
153 lines
4.7 KiB
Python
# Xlib.support.unix_connect -- Unix-type display connection functions
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#
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# Copyright (C) 2000,2002 Peter Liljenberg <petli@ctrl-c.liu.se>
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# Copyright (C) 2013 LiuLang <gsushzhsosgsu@gmail.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import fcntl
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import os
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import platform
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import re
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import socket
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F_SETFD = fcntl.F_SETFD
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FD_CLOEXEC = fcntl.FD_CLOEXEC
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from Xlib import error, xauth
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uname = platform.uname()
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if (uname[0] == 'Darwin') and ([int(x) for x in uname[2].split('.')] >= [9, 0]):
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display_re = re.compile(r'^([-a-zA-Z0-9._/]*):([0-9]+)(\.([0-9]+))?$')
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else:
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display_re = re.compile(r'^([-a-zA-Z0-9._]*):([0-9]+)(\.([0-9]+))?$')
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def get_display(display):
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# Use $DISPLAY if display isn't provided
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if display is None:
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display = os.environ.get('DISPLAY', '')
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m = display_re.match(display)
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if not m:
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raise error.DisplayNameError(display)
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name = display
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host = m.group(1)
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dno = int(m.group(2))
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screen = m.group(4)
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if screen:
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screen = int(screen)
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else:
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screen = 0
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return name, host, dno, screen
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def get_socket(dname, host, dno):
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try:
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# Darwin funky socket
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if (uname[0] == 'Darwin') and host and host.startswith('/tmp/'):
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s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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s.connect(dname)
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# If hostname (or IP) is provided, use TCP socket
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elif host:
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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s.connect((host, 6000 + dno))
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# Else use Unix socket
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else:
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s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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s.connect('/tmp/.X11-unix/X%d' % dno)
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except OSError as val:
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raise error.DisplayConnectionError(dname, str(val))
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# Make sure that the connection isn't inherited in child processes
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fcntl.fcntl(s.fileno(), F_SETFD, FD_CLOEXEC)
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return s
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def new_get_auth(sock, dname, host, dno):
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# Translate socket address into the xauth domain
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if (uname[0] == 'Darwin') and host and host.startswith('/tmp/'):
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family = xauth.FamilyLocal
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addr = socket.gethostname()
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elif host:
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family = xauth.FamilyInternet
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# Convert the prettyprinted IP number into 4-octet string.
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# Sometimes these modules are too damn smart...
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octets = sock.getpeername()[0].split('.')
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addr = ''.join(map(lambda x: chr(int(x)), octets))
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else:
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family = xauth.FamilyLocal
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addr = socket.gethostname()
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au = xauth.Xauthority()
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while 1:
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try:
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return au.get_best_auth(family, addr, dno)
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except error.XNoAuthError:
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pass
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# We need to do this to handle ssh's X forwarding. It sets
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# $DISPLAY to localhost:10, but stores the xauth cookie as if
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# DISPLAY was :10. Hence, if localhost and not found, try
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# again as a Unix socket.
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if family == xauth.FamilyInternet and addr == '\x7f\x00\x00\x01':
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family = xauth.FamilyLocal
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addr = socket.gethostname()
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else:
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return '', ''
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def old_get_auth(sock, dname, host, dno):
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# Find authorization cookie
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auth_name = auth_data = ''
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try:
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# We could parse .Xauthority, but xauth is simpler
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# although more inefficient
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data = os.popen('xauth list %s 2>/dev/null' % dname).read()
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# If there's a cookie, it is of the format
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# DISPLAY SCHEME COOKIE
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# We're interested in the two last parts for the
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# connection establishment
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lines = data.split('\n')
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if len(lines) >= 1:
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parts = lines[0].split(None, 2)
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if len(parts) == 3:
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auth_name = parts[1]
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hexauth = parts[2]
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auth = ''
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# Translate hexcode into binary
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for i in range(0, len(hexauth), 2):
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auth = auth + chr(int(hexauth[i:i+2], 16))
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auth_data = auth
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except os.error:
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pass
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return auth_name, auth_data
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get_auth = new_get_auth
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