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#!/usr/bin/python
#
# Copyright 2009-2011 Canonical Ltd.
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 3, as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, 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/>.
"""Ubuntu One storage synchronization daemon."""
import sys
if sys.platform != 'win32':
from twisted.internet import glib2reactor
glib2reactor.install()
from dbus.mainloop.glib import DBusGMainLoop
DBusGMainLoop(set_as_default=True)
import atexit
import os
import signal
import sys
from ubuntuone.platform import (
can_write,
set_dir_readwrite,
is_already_running,
is_root,
make_dir,
path_exists,
recursive_move,
set_application_name,
)
from ubuntuone.syncdaemon import logger, config
from ubuntuone.syncdaemon.config import (
get_config_files,
)
from ubuntuone.syncdaemon.main import Main
from twisted.internet import reactor, defer
from ubuntu_sso.xdg_base_directory import (
xdg_cache_home,
xdg_data_home,
)
class DeathException(Exception):
"""The process has commited seppuku."""
def die(msg):
"""Write the error message an die."""
logger.root_logger.warning(msg)
sys.stderr.write(msg + '\n')
raise DeathException()
def check_death(failure):
"""Stop the reactor and exit the process."""
failure.trap(DeathException)
reactor.callWhenRunning(reactor.stop)
def main(argv):
""" client entry point. """
args = argv[1:]
usage = "Usage: %prog [config file] [extra config files] [options] "
configs = []
while len(args) > 0 and not args[0].startswith('-'):
configs.append(args.pop(0))
if len(configs) == 0:
configs.extend(get_config_files())
(parser, options, argv) = config.configglue(file(configs[0]), *configs[1:],
args=args, usage=usage)
d = async_main(parser, options, argv)
d.addErrback(check_death)
if options.debug_lsprof_file:
try:
from bzrlib.lsprof import profile
ret, stats = profile(reactor.run)
stats.save(options.debug_lsprof_file)
except ImportError:
logger.root_logger.warning('bzrlib.lsprof not available')
reactor.run()
else:
reactor.run()
@defer.inlineCallbacks
def async_main(parser, options, argv):
"""The client entry point that can yield."""
logger.init()
if options.debug:
logger.set_debug('stdout file')
else:
logger.configure_logging(options.logging_level,
options.logging_file_size,
options.logging_backup_count)
# check we're not running as root, or have explicitely and in
# length expressed our desire to do so
if (is_root() and
not options.im_ok_with_being_root_pretty_please_let_me_be_root):
die("Please don't run the syncdaemon as root.")
# check if the user disabled files sync
# we need to perform this check first because libsyncdaemon uses
# NameOwnerChanged signal to set up internal syncdaemon structures.
# In case we check config after acquiring DBus name we'll get LP:759714
if not config.get_user_config().get_files_sync_enabled():
die('Files synchronization is disabled.')
# check if there is another instance running
is_running = yield is_already_running()
if is_running:
die('Another instance is running')
# check if we are using xdg_data_home and it doesn't exists
if xdg_data_home in options.data_dir and \
not path_exists(options.data_dir):
# if we have metadata in the old xdg_cache, move it!
old_data_dir = options.data_dir.replace(xdg_data_home, xdg_cache_home)
if path_exists(old_data_dir):
parent = os.path.dirname(options.data_dir)
if path_exists(parent) and not can_write(parent):
# make the parent dir writable
set_dir_readwrite(parent)
elif not path_exists(parent):
# if it don't exits
make_dir(parent, recursive=True)
recursive_move(old_data_dir, options.data_dir)
if not path_exists(options.data_dir):
parent = os.path.dirname(options.data_dir)
if path_exists(parent) and not can_write(parent):
# make the parent dir writable
set_dir_readwrite(parent)
make_dir(options.data_dir, recursive=True)
# create the partials_dir
partials_dir = os.path.join(xdg_cache_home, 'ubuntuone', 'partials')
if not path_exists(partials_dir):
make_dir(partials_dir, recursive=True)
logger.rotate_logs()
assert isinstance(options.root_dir, str)
assert isinstance(options.shares_dir, str)
assert isinstance(options.data_dir, str)
# check if we have oauth credentials
oauth_credentials = None
if options.oauth:
values = options.oauth.split(':')
if len(values) == 4 or len(values) == 2:
oauth_credentials = values
else:
msg = "--oauth requires a key and secret together in the form " \
"[CONSUMER_KEY:CONSUMER_SECRET:]KEY:SECRET"
parser.error(msg)
main = Main(options.root_dir, options.shares_dir, options.data_dir,
partials_dir, host=options.host, port=int(options.port),
dns_srv=options.dns_srv, ssl=True,
disable_ssl_verify=options.disable_ssl_verify,
mark_interval=options.mark_interval,
broadcast_events=options.send_events_over_dbus,
handshake_timeout=options.handshake_timeout,
shares_symlink_name='Shared With Me',
read_limit=options.bandwidth_throttling_read_limit,
write_limit=options.bandwidth_throttling_write_limit,
throttling_enabled=options.bandwidth_throttling_on,
ignore_files=options.ignore,
oauth_credentials=oauth_credentials)
# override the reactor default signal handlers in order to
# shutdown properly
atexit.register(reactor.callFromThread, main.quit)
def install_handlers():
""" install our custom signal handler. """
def handler(signum, frame):
logger.root_logger.debug("Signal received %s ", str(signum))
reactor.callFromThread(main.quit)
for signal_name in ['SIGHUP', 'SIGTERM', 'SIGINT']:
actual_signal = getattr(signal, signal_name, None)
# some platforms do not have all the signals, eg: Windows does not
# have SIGHUP
if actual_signal is not None:
signal.signal(actual_signal, handler)
reactor.callWhenRunning(install_handlers)
# set the application name
set_application_name('ubuntuone-syncdaemon')
# check if we should start the heapy monitor
if options.debug_heapy_monitor:
try:
import guppy.heapy.RM
except ImportError:
logger.root_logger.warning('guppy-pe/heapy not available, remote '
'monitor thread not started')
else:
guppy.heapy.RM.on()
main.start()
if __name__ == '__main__':
try:
main(sys.argv)
except Exception:
logger.root_logger.exception('Unexpected error')
raise
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