# no file name collisions which can occur when the same save_in directory is used for
# all torrents. When 'save in' is empty, the destination of the filename is used, which
# for save_as style 4 (the default) will be in the same directory as the .torrent file.
# If each .torrent file is in its own directory then filename collisions cannot occur.
config['save_in'] = u""
except BTFailure, e:
print _("error: ") + unicode(e.args[0]) + \
_("\nrun with no args for parameter explanations")
sys.exit(1)
except KeyboardInterrupt:
sys.exit(1)
d = HeadlessDisplayer()
config = Preferences().initWithDict(config)
injectLogger(use_syslog = False, capture_output = True, verbose = True,
log_level = logging.INFO, log_twisted = False )
logging.getLogger('').removeHandler(console) # remove handler installed by BitTorrent.__init__.
LaunchMany(config, d.display, 'launchmany-console')
logging.getLogger("").critical( "After return from LaunchMany" )
# Uncomment the following if it looks like threads are hanging around.
# monitor_thread can be found in cdv://cdv.bittorrent.com:6602/python-scripts
#import threading
#nondaemons = [d for d in threading.enumerate() if not d.isDaemon()]
#if len(nondaemons) > 1:
# import time
# from monitor_thread import print_stacks
# time.sleep(4)
# nondaemons = [d for d in threading.enumerate() if not d.isDaemon()]
# if len(nondaemons) > 1:
# for save_as style 4 (the default) will be in the same directory as the .torrent file.
# If each .torrent file is in its own directory then filename collisions cannot occur.
config['save_in'] = u""
except BTFailure, e:
print _("error: ") + unicode(e.args[0]) + \
_("\nrun with no args for parameter explanations")
sys.exit(1)
except KeyboardInterrupt:
sys.exit(1)
d = HeadlessDisplayer()
config = Preferences().initWithDict(config)
injectLogger(use_syslog=False,
capture_output=True,
verbose=True,
log_level=logging.INFO,
log_twisted=False)
logging.getLogger('').removeHandler(
console) # remove handler installed by BitTorrent.__init__.
LaunchMany(config, d.display, 'launchmany-console')
logging.getLogger("").critical("After return from LaunchMany")
# Uncomment the following if it looks like threads are hanging around.
# monitor_thread can be found in cdv://cdv.bittorrent.com:6602/python-scripts
#import threading
#nondaemons = [d for d in threading.enumerate() if not d.isDaemon()]
#if len(nondaemons) > 1:
# import time
# from monitor_thread import print_stacks
def daemon(**kwargs):
"""When this function returns, you are a daemon.
valid kwargs:
- pidfile,
- logfile,
- use_syslog, and
- anything defined by twistd.ServerOptions.
"""
if os.name == 'mac':
raise NotImplementedError( "Daemonization doesn't work on macs." )
uid = os.getuid()
gid = os.getgid()
if uid == 0 and not kwargs.has_key("username"):
raise Exception( "If you start with root privileges you need to "
"provide a username argument so that daemon() can shed those "
"privileges before returning." )
if kwargs.has_key("username") and kwargs["username"]:
username = kwargs["username"]
print "setting username to uid of ", username
uid = getuid_from_username(username)
gid = getgid_from_username(username) # uses this user's group
del kwargs["username"]
if kwargs.has_key("groupname") and kwargs["groupname"]:
print "setting groupname to gid of ", kwargs["groupname"]
gid = getgid_from_groupname(kwargs["groupname"])
del kwargs["groupname"]
pid_dir = os.path.join("/var/run/", app_name )
pidfile = os.path.join( pid_dir, app_name + ".pid")
if not isinstance(kwargs,twistd.ServerOptions):
config = twistd.ServerOptions()
for k in kwargs:
config[k]=kwargs[k]
config['daemon'] = True
if config.has_key("pidfile"):
pidfile = config['pidfile']
else:
config['pidfile'] = pidfile
pid_dir = os.path.split(pidfile)[0]
if pid_dir and not os.path.exists(pid_dir):
os.mkdir(pid_dir)
os.chown(pid_dir,uid,gid)
twistd.checkPID(pidfile)
use_syslog = config.get('use_syslog',True)
if config.has_key('logfile') and config['logfile']:
injectLogger(use_syslog=use_syslog, log_file=config['logfile'])
elif use_syslog:
injectLogger(use_syslog=True)
else:
raise Exception( "You are attempting to daemonize without a log file,"
"and with use_syslog set to false. A daemon must "
"output to syslog, a logfile, or both." )
twistd.setupEnvironment(config) # forks, moves into its own process
# group, forks again, middle process
# exits with status 0. Creates pid
# file. Also redirects stdout, stderr
# to /dev/null.
# I am now a daemon.
# pid file can be removed because it is in a subdirectory
# of /var/run that is owned by the user id running
# the service and not by root.
#
# Dave says, "daemon no longer removes pid file. If
# monitors see a pidfile exists and the process is not
# running then the monitor will restart the process.
# If you want the process to REALLY die then the
# pid file should be removed external to the program,
# e.g., by an init.d script that is passed "stop".
#
#def rmpid():
# if os.path.exists(pidfile):
# try:
# os.unlink(pidfile)
# except Exception,e:
# import logging
# log = logging.getLogger(app_name)
# log.error( str(e), exc_info = sys.exc_info())
#atexit.register(rmpid)
if not os.path.exists(pidfile):
import logging
log = logging.getLogger(app_name)
log.error( "pidfile %s does not exist" % pidfile )
os.chown(pidfile, uid, gid)
os.chmod(pidfile, stat.S_IRUSR|stat.S_IWUSR|stat.S_IROTH|stat.S_IRGRP)
if os.getuid() == 0:
twistd.shedPrivileges(False, uid, gid)
def daemon(
username = None, groupname = None,
use_syslog = None, log_file = None, logfile = None, # HACK for backwards compat.
verbose = False,
capture_output = True,
twisted_error_log_level = ERROR,
twisted_info_log_level = INFO,
capture_stderr_log_level = ERROR,
capture_stdout_log_level = INFO,
capture_stderr_name = 'stderr',
capture_stdout_name = 'stdout',
log_level = DEBUG,
log_twisted = True,
pidfile = None,
use_localtime=False):
"""When this function returns, you are a daemon.
If use_syslog or a log_file is specified then this installs a logger.
Iff capture_output is specified then stdout and stderr
are also directed to syslog.
If use_syslog is None then it defaults to True if no log_file
is provided and the platform is not Darwin.
The following arguments are passed through to BTL.log.injectLogger.
use_syslog, log_file, verbose,
capture_output, twisted_error_log_level,
twisted_info_log_level, capture_stderr_log_level,
capture_stdout_log_level, capture_stderr_name,
capture_stdout_name, log_level, log_twisted
daemon no longer removes pid file. Ex: If
a monitor sees that a pidfile exists and the process is not
running then the monitor restarts the process.
If you want the process to REALLY die then the
pid file should be removed external to the program,
e.g., by an init.d script that is passed "stop".
"""
assert log_file is None or logfile is None, "logfile was provided for backwards " \
"compatibility. You cannot specify both log_file and logfile."
if log_file is None:
log_file = logfile
try:
if os.name == 'mac':
raise NotImplementedError( "Daemonization doesn't work on macs." )
if noisy:
print "in daemon"
uid = os.getuid()
gid = os.getgid()
if uid == 0 and username is None:
raise Exception( "If you start with root privileges you need to "
"provide a username argument so that daemon() can shed those "
"privileges before returning." )
if username:
uid = getuid_from_username(username)
if noisy:
print "setting username to uid of '%s', which is %d." % ( username, uid )
if uid != os.getuid() and os.getuid() != 0:
raise Exception( "When specifying a uid other than your own "
"you must be running as root for setuid to work. "
"Your uid is %d, while the specified user '%s' has uid %d."
% ( os.getuid(), username, uid ) )
gid = getgid_from_username(username) # uses this user's group
if groupname:
if noisy:
print "setting groupname to gid of '%s', which is %d." % (groupname,gid)
gid = getgid_from_groupname(groupname)
pid_dir = os.path.split(pidfile)[0]
if pid_dir and not os.path.exists(pid_dir):
os.mkdir(pid_dir)
os.chown(pid_dir,uid,gid)
checkPID(pidfile)
if use_syslog is None:
use_syslog = sys.platform != 'darwin' and not log_file
if log_file:
if use_syslog:
raise Exception( "You have specified both a log_file and "
"that the daemon should use_syslog. Specify one or "
"the other." )
print "Calling injectLogger"
injectLogger(use_syslog=False, log_file = log_file, log_level = log_level,
capture_output = capture_output, verbose = verbose,
capture_stdout_name = capture_stdout_name,
capture_stderr_name = capture_stderr_name,
twisted_info_log_level = twisted_info_log_level,
twisted_error_log_level = twisted_error_log_level,
capture_stdout_log_level = capture_stdout_log_level,
capture_stderr_log_level = capture_stderr_log_level,
use_localtime = use_localtime )
elif use_syslog:
injectLogger(use_syslog=True, log_level = log_level, verbose = verbose,
capture_output = capture_output,
capture_stdout_name = capture_stdout_name,
capture_stderr_name = capture_stderr_name,
twisted_info_log_level = twisted_info_log_level,
twisted_error_log_level = twisted_error_log_level,
capture_stdout_log_level = capture_stdout_log_level,
capture_stderr_log_level = capture_stderr_log_level )
else:
raise Exception( "You are attempting to daemonize without a log file,"
"and with use_syslog set to false. A daemon must "
"output to syslog, a logfile, or both." )
if pidfile is None:
pid_dir = os.path.join("/var/run/", app_name )
pidfile = os.path.join( pid_dir, app_name + ".pid")
daemonize() # forks, moves into its own process group, forks again,
# middle process exits with status 0. Redirects stdout,
# stderr to /dev/null.
# I should now be a daemon.
open(pidfile,'wb').write(str(os.getpid()))
if not os.path.exists(pidfile):
raise Exception( "pidfile %s does not exist" % pidfile )
os.chmod(pidfile, stat.S_IRUSR|stat.S_IWUSR|stat.S_IROTH|stat.S_IRGRP)
if os.getuid() == 0:
if uid is not None or gid is not None:
switchUID(uid, gid)
if os.getuid() != uid:
raise Exception( "failed to setuid to uid %d" % uid )
if os.getgid() != gid:
raise Exception( "failed to setgid to gid %d" % gid )
except:
log.exception("daemonizing may have failed")
import traceback
traceback.print_exc()
raise
def daemon(**kwargs):
"""When this function returns, you are a daemon.
If use_syslog is specified then this installs a logger.
Iff capture_output is specified then stdout and stderr
are also directed to syslog.
valid kwargs:
- pidfile,
- logfile,
- capture_output, # log stdout and stderr?
- capture_stdout_name # getLogger(capture_name) for captured stdout stderr
- capture_stdout_log_level
- capture_stderr_name
- capture_stderr_log_level
- twisted_info_log_level # log level for non-errors coming from twisted logging.
- twisted_error_log_level # log level for errors coming from twisted logging.
- log_level # log only things ith level >= log_level.
- use_syslog, and # output to syslog.
- anything defined by twistd.ServerOptions.
"""
if os.name == 'mac':
raise NotImplementedError("Daemonization doesn't work on macs.")
if noisy:
print "in daemon"
uid = os.getuid()
gid = os.getgid()
if uid == 0 and not kwargs.has_key("username"):
raise Exception(
"If you start with root privileges you need to "
"provide a username argument so that daemon() can shed those "
"privileges before returning.")
if kwargs.has_key("username") and kwargs["username"]:
username = kwargs["username"]
uid = getuid_from_username(username)
if noisy:
print "setting username to uid of '%s', which is %d." % (username,
uid)
if uid != os.getuid() and os.getuid() != 0:
raise Exception(
"When specifying a uid other than your own "
"you must be running as root for setuid to work. "
"Your uid is %d, while the specified user '%s' has uid %d." %
(os.getuid(), username, uid))
gid = getgid_from_username(username) # uses this user's group
del kwargs["username"]
if kwargs.has_key("groupname") and kwargs["groupname"]:
groupname = kwargs["groupname"]
if noisy:
print "setting groupname to gid of '%s', which is %d." % (
groupname, gid)
gid = getgid_from_groupname(groupname)
del kwargs["groupname"]
capture_output = kwargs.get("capture_output", False)
if kwargs.has_key("capture_output"):
del kwargs["capture_output"]
capture_stdout_name = kwargs.get("capture_stdout_name", "stdout")
if kwargs.has_key("capture_stdout_name"):
del kwargs["capture_stdout_name"]
capture_stderr_name = kwargs.get("capture_stderr_name", "stderr")
if kwargs.has_key("capture_stderr_name"):
del kwargs["capture_stderr_name"]
capture_stdout_log_level = kwargs.get("capture_stdout_log_level",
logging.INFO)
if kwargs.has_key("capture_stdout_log_level"):
del kwargs["capture_stdout_log_level"]
capture_stderr_log_level = kwargs.get("capture_stderr_log_level",
logging.INFO)
if kwargs.has_key("capture_stderr_log_level"):
del kwargs["capture_stderr_log_level"]
log_level = kwargs.get("log_level", logging.INFO)
if kwargs.has_key("log_level"):
del kwargs["log_level"]
twisted_info_log_level = kwargs.get("twisted_info_log_level", logging.INFO)
if kwargs.has_key("twisted_info_log_level"):
del kwargs["twisted_info_log_level"]
twisted_error_log_level = kwargs.get("twisted_error_log_level",
logging.ERROR)
if kwargs.has_key("twisted_error_log_level"):
del kwargs["twisted_error_log_level"]
pid_dir = os.path.join("/var/run/", app_name)
pidfile = os.path.join(pid_dir, app_name + ".pid")
if not isinstance(kwargs, twistd.ServerOptions):
config = twistd.ServerOptions()
for k in kwargs:
config[k] = kwargs[k]
config['daemon'] = True
if config.has_key("pidfile"):
pidfile = config['pidfile']
else:
config['pidfile'] = pidfile
pid_dir = os.path.split(pidfile)[0]
if pid_dir and not os.path.exists(pid_dir):
os.mkdir(pid_dir)
os.chown(pid_dir, uid, gid)
twistd.checkPID(pidfile)
logfile = config.get('log_file', None)
use_syslog = config.get('use_syslog', sys.platform != 'darwin'
and not logfile)
if config.has_key('logfile') and config['logfile']:
if 'use_syslog' in config and config['use_syslog']:
raise Exception(
"You have specified both a logfile and "
"that the daemon should use_syslog. Specify one or "
"the other.")
injectLogger(use_syslog=False,
log_file=config['logfile'],
log_level=log_level,
capture_output=capture_output,
capture_stdout_name=capture_stdout_name,
capture_stderr_name=capture_stderr_name,
twisted_info_log_level=twisted_info_log_level,
twisted_error_log_level=twisted_error_log_level,
capture_stdout_log_level=capture_stdout_log_level,
capture_stderr_log_level=capture_stderr_log_level)
elif use_syslog:
injectLogger(use_syslog=True,
log_level=log_level,
capture_output=capture_output,
capture_stdout_name=capture_stdout_name,
capture_stderr_name=capture_stderr_name,
twisted_info_log_level=twisted_info_log_level,
twisted_error_log_level=twisted_error_log_level,
capture_stdout_log_level=capture_stdout_log_level,
capture_stderr_log_level=capture_stderr_log_level)
else:
raise Exception("You are attempting to daemonize without a log file,"
"and with use_syslog set to false. A daemon must "
"output to syslog, a logfile, or both.")
twistd.setupEnvironment(config) # forks, moves into its own process
# group, forks again, middle process
# exits with status 0. Creates pid
# file. Also redirects stdout, stderr
# to /dev/null.
# I should now be a daemon.
# pid file can be removed because it is in a subdirectory
# of /var/run that is owned by the user id running
# the service and not by root.
#
# Dave says, "daemon no longer removes pid file. If
# monitors see a pidfile exists and the process is not
# running then the monitor will restart the process.
# If you want the process to REALLY die then the
# pid file should be removed external to the program,
# e.g., by an init.d script that is passed "stop".
#
#def rmpid():
# if os.path.exists(pidfile):
# try:
# os.unlink(pidfile)
# except Exception,e:
# log.error( str(e), exc_info = sys.exc_info())
#atexit.register(rmpid)
if not os.path.exists(pidfile):
raise Exception("pidfile %s does not exist" % pidfile)
os.chown(pidfile, uid, gid)
os.chmod(pidfile,
stat.S_IRUSR | stat.S_IWUSR | stat.S_IROTH | stat.S_IRGRP)
if os.getuid() == 0:
twistd.shedPrivileges(False, uid, gid)
if os.getuid() != uid:
raise Exception("twistd failed to setuid to uid %d" % uid)
if os.getgid() != gid:
raise Exception("twistd failed to setgid to gid %d" % gid)
