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#!/usr/bin/env python
# Uzbl tabbing wrapper using a fifo socket interface
# Copyright (c) 2009, Tom Adams <tom@holizz.com>
# Copyright (c) 2009, Dieter Plaetinck <dieter AT plaetinck.be>
# Copyright (c) 2009, Mason Larobina <mason.larobina@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import cookielib
import os
import sys
import urllib2
import select
import socket
import time
try:
import cStringIO as StringIO
except ImportError:
import StringIO
# ============================================================================
# ::: Default configuration section ::::::::::::::::::::::::::::::::::::::::::
# ============================================================================
# Location of the uzbl cache directory.
if 'XDG_CACHE_HOME' in os.environ.keys() and os.environ['XDG_CACHE_HOME']:
cache_dir = os.path.join(os.environ['XDG_CACHE_HOME'], 'uzbl/')
else:
cache_dir = os.path.join(os.environ['HOME'], '.cache/uzbl/')
# Location of the uzbl data directory.
if 'XDG_DATA_HOME' in os.environ.keys() and os.environ['XDG_DATA_HOME']:
data_dir = os.path.join(os.environ['XDG_DATA_HOME'], 'uzbl/')
else:
data_dir = os.path.join(os.environ['HOME'], '.local/share/uzbl/')
# Create cache dir and data dir if they are missing.
for path in [data_dir, cache_dir]:
if not os.path.exists(path):
os.makedirs(path)
# Default config
cookie_socket = os.path.join(cache_dir, 'cookie_daemon_socket')
cookie_jar = os.path.join(data_dir, 'cookies.txt')
#daemon_timeout = 360
daemon_timeout = 0
# ============================================================================
# ::: End of configuration section :::::::::::::::::::::::::::::::::::::::::::
# ============================================================================
class CookieMonster:
'''The uzbl cookie daemon class.'''
def __init__(self, cookie_socket, cookie_jar, daemon_timeout):
self.cookie_socket = os.path.expandvars(cookie_socket)
self.server_socket = None
self.cookie_jar = os.path.expandvars(cookie_jar)
self.jar = None
self.daemon_timeout = daemon_timeout
self.last_request = time.time()
def run(self):
'''Start the daemon.'''
try:
# Daemonize process.
#self.daemonize()
# Create cookie_socket
self.create_socket()
# Create jar object
self.open_cookie_jar()
# Listen for GET and PULL cookie requests.
self.listen()
except:
#raise
print "%r" % sys.exc_info()[1]
self.quit()
def daemonize(function):
'''Daemonize the process using the Stevens' double-fork magic.'''
try:
if os.fork(): sys.exit(0)
except OSError, e:
sys.stderr.write("fork #1 failed: %s\n" % e)
sys.exit(1)
os.chdir('/')
os.setsid()
os.umask(0)
try:
if os.fork(): sys.exit(0)
except OSError, e:
sys.stderr.write("fork #2 failed: %s\n" % e)
sys.exit(1)
sys.stdout.flush()
sys.stderr.flush()
devnull = '/dev/null'
stdin = file(devnull, 'r')
stdout = file(devnull, 'a+')
stderr = file(devnull, 'a+', 0)
os.dup2(stdin.fileno(), sys.stdin.fileno())
os.dup2(stdout.fileno(), sys.stdout.fileno())
os.dup2(stderr.fileno(), sys.stderr.fileno())
def open_cookie_jar(self):
'''Open the cookie jar.'''
# Open cookie jar.
self.jar = cookielib.MozillaCookieJar(cookie_jar)
try:
self.jar.load(ignore_discard=True)
except:
pass
def create_socket(self):
'''Open socket AF_UNIX socket for uzbl instance <-> daemon
communication.'''
if os.path.exists(self.cookie_socket):
# Don't you just love racetrack conditions!
sys.exit(1)
self.server_socket = socket.socket(socket.AF_UNIX,\
socket.SOCK_SEQPACKET)
self.server_socket.bind(self.cookie_socket)
def listen(self):
'''Listen for incoming cookie PUT and GET requests.'''
while True:
# If you get broken pipe errors increase this listen number.
self.server_socket.listen(1)
if bool(select.select([self.server_socket],[],[],1)[0]):
client_socket, _ = self.server_socket.accept()
self.handle_request(client_socket)
self.last_request = time.time()
if self.daemon_timeout:
idle = time.time() - self.last_request
if idle > self.daemon_timeout: break
def handle_request(self, client_socket):
'''Connection made, now to serve a cookie PUT or GET request.'''
# Receive full request from client.
data = client_socket.recv(4096)
argv = data.split("\0")
# For debugging:
print ' '.join(argv)
action = argv[0]
set_cookie = argv[4] if len(argv) > 3 else None
uri = urllib2.urlparse.ParseResult(
scheme=argv[1],
netloc=argv[2],
path=argv[3],
params='',
query='',
fragment='').geturl()
req = urllib2.Request(uri)
if action == "GET":
self.jar.add_cookie_header(req)
if req.has_header('Cookie'):
client_socket.send(req.get_header('Cookie'))
else:
client_socket.send("\0")
elif action == "PUT":
hdr = urllib2.httplib.HTTPMessage(\
StringIO.StringIO('Set-Cookie: %s' % set_cookie))
res = urllib2.addinfourl(StringIO.StringIO(), hdr,\
req.get_full_url())
self.jar.extract_cookies(res,req)
self.jar.save(ignore_discard=True)
client_socket.close()
def quit(self):
'''Called on exit to make sure all loose ends are tied up.'''
# Only one loose end so far.
self.del_socket()
# And die gracefully.
sys.exit(0)
def del_socket(self):
'''Remove the cookie_socket file on exit. In a way the cookie_socket
is the daemons pid file equivalent.'''
if self.server_socket:
self.server_socket.close()
if os.path.exists(self.cookie_socket):
os.remove(self.cookie_socket)
if __name__ == "__main__":
if os.path.exists(cookie_socket):
print "Error: cookie socket already exists: %r" % cookie_socket
sys.exit(1)
CookieMonster(cookie_socket, cookie_jar, daemon_timeout).run()
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