diff --git a/kolabd/__init__.py b/kolabd/__init__.py
index cefcc02..edeace2 100644
--- a/kolabd/__init__.py
+++ b/kolabd/__init__.py
@@ -1,390 +1,392 @@
# Copyright 2010-2016 Kolab Systems AG (http://www.kolabsys.com)
#
# Jeroen van Meeuwen (Kolab Systems) <vanmeeuwen a kolabsys.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/>.
#
"""
The Kolab daemon.
"""
from __future__ import print_function
import grp
import os
import pwd
import shutil
import sys
import time
import traceback
import pykolab
from pykolab.auth import Auth
from pykolab import constants
from pykolab import utils
from pykolab.translate import _ as _l
from .process import KolabdProcess as Process
# pylint: disable=invalid-name
log = pykolab.getLogger('pykolab.daemon')
conf = pykolab.getConf()
class KolabDaemon:
def __init__(self):
"""
The main Kolab Groupware daemon process.
"""
daemon_group = conf.add_cli_parser_option_group(_l("Daemon Options"))
daemon_group.add_option(
"--fork",
dest="fork_mode",
action="store_true",
default=False,
help=_l("Fork to the background.")
)
daemon_group.add_option(
"-p", "--pid-file",
dest="pidfile",
action="store",
default="/var/run/kolabd/kolabd.pid",
help=_l("Path to the PID file to use.")
)
daemon_group.add_option(
"-u", "--user",
dest="process_username",
action="store",
default="kolab",
help=_l("Run as user USERNAME"),
metavar="USERNAME"
)
daemon_group.add_option(
"-g", "--group",
dest="process_groupname",
action="store",
default="kolab",
help=_l("Run as group GROUPNAME"),
metavar="GROUPNAME"
)
conf.finalize_conf()
# pylint: disable=too-many-branches
# pylint: disable=too-many-statements
def run(self):
"""Run Forest, RUN!"""
exitcode = 0
utils.ensure_directory(
os.path.dirname(conf.pidfile),
conf.process_username,
conf.process_groupname
)
try:
try:
(ruid, _, _) = os.getresuid()
(rgid, _, _) = os.getresgid()
except AttributeError:
ruid = os.getuid()
rgid = os.getgid()
if ruid == 0:
# Means we can setreuid() / setregid() / setgroups()
if rgid == 0:
# Get group entry details
try:
(_, _, group_gid, _) = grp.getgrnam(conf.process_groupname)
except KeyError:
log.error(
_l("Group %s does not exist") % (conf.process_groupname)
)
sys.exit(1)
# Set real and effective group if not the same as current.
if not group_gid == rgid:
log.debug(
_l("Switching real and effective group id to %d") % (group_gid),
level=8
)
os.setregid(group_gid, group_gid)
if ruid == 0:
# Means we haven't switched yet.
try:
(_, _, user_uid, _, _, _, _) = pwd.getpwnam(conf.process_username)
except KeyError:
log.error(
_l("User %s does not exist") % (conf.process_username)
)
sys.exit(1)
# Set real and effective user if not the same as current.
if not user_uid == ruid:
log.debug(
_l("Switching real and effective user id to %d") % (user_uid),
level=8
)
os.setreuid(user_uid, user_uid)
except Exception:
log.error(_l("Could not change real and effective uid and/or gid"))
try:
pid = os.getpid()
if conf.fork_mode:
pid = os.fork()
if pid > 0 and not conf.fork_mode:
self.do_sync()
elif pid > 0:
sys.exit(0)
else:
# Give up the session, all control,
# all open file descriptors, see #5151
os.chdir("/")
- os.umask(0)
+ old_umask = os.umask(0)
os.setsid()
pid = os.fork()
if pid > 0:
sys.exit(0)
sys.stderr.flush()
sys.stdout.flush()
os.close(0)
os.close(1)
os.close(2)
os.open(os.devnull, os.O_RDONLY)
os.open(os.devnull, os.O_WRONLY)
os.open(os.devnull, os.O_WRONLY)
+ os.umask(old_umask)
+
log.remove_stdout_handler()
self.set_signal_handlers()
self.write_pid()
self.do_sync()
except SystemExit as errcode:
exitcode = errcode
except KeyboardInterrupt:
exitcode = 1
log.info(_l("Interrupted by user"))
except AttributeError:
exitcode = 1
traceback.print_exc()
print(_l("Traceback occurred, please report a bug"), file=sys.stderr)
except TypeError as errmsg:
exitcode = 1
traceback.print_exc()
log.error(_l("Type Error: %s") % errmsg)
except Exception:
exitcode = 2
traceback.print_exc()
print(_l("Traceback occurred, please report a bug"), file=sys.stderr)
sys.exit(exitcode)
# pylint: disable=no-self-use
# pylint: disable=too-many-branches
# pylint: disable=too-many-locals
def do_sync(self):
domain_auth = {}
primary_domain = conf.get('kolab', 'primary_domain')
while 1:
primary_auth = Auth(primary_domain)
connected = False
while not connected:
try:
primary_auth.connect()
connected = True
except Exception as errmsg:
connected = False
log.error(_l("Could not connect to LDAP, is it running?"))
log.error(_l("Error: %r") % (errmsg))
log.error("Traceback: %r" % (traceback.format_exc()))
time.sleep(5)
log.debug(_l("Listing domains..."), level=5)
try:
domains = primary_auth.list_domains()
except Exception:
time.sleep(60)
continue
if not domains:
log.error(_l("No domains. Not syncing"))
time.sleep(5)
continue
# domains now is a list of key-valye pairs in the format of
# {'secondary': 'primary'}, we want the primaries
primaries = list(set(domains.values()))
# Store the naming contexts for the domains as
#
# {'domain': 'naming context'}
#
# and the domain root dns as
#
# {'domain': 'domain root dn'}
#
domain_root_dns = {}
naming_contexts = {}
for primary in primaries:
naming_context = primary_auth.domain_naming_context(primary)
# pylint: disable=protected-access
domain_root_dn = primary_auth._auth._kolab_domain_root_dn(primary)
log.debug(
_l("Domain %r naming context: %r, root dn: %r") % (
primary,
naming_context,
domain_root_dn
),
level=8
)
domain_root_dns[primary] = domain_root_dn
naming_contexts[primary] = naming_context
log.debug(
_l("Naming contexts to synchronize: %r") % (
list(set(naming_contexts.values()))
),
level=8
)
# Find however many naming contexts we have, and what the
# corresponding domain name is for them.
primary_domains = [x for x, y in naming_contexts.items() if domain_root_dns[x] == y]
# Now we can check if any changes happened.
added_domains = []
removed_domains = []
# Combine the domains from LDAP with the domain processes
# accounted for locally.
all_domains = list(set(primary_domains + domain_auth.keys()))
log.debug(_l("Result set of domains: %r") % (all_domains), level=8)
for domain in all_domains:
log.debug(_l("Checking for domain %s") % (domain), level=8)
if domain in domain_auth.keys() and domain in primary_domains:
if not domain_auth[domain].is_alive():
log.debug(_l("Domain %s isn't alive anymore.") % (domain), level=8)
domain_auth[domain].terminate()
added_domains.append(domain)
else:
log.debug(_l("Domain %s already there and alive.") % (domain), level=8)
continue
elif domain in domain_auth.keys():
log.debug(_l("Domain %s should not exist any longer.") % (domain), level=8)
removed_domains.append(domain)
else:
log.debug(_l("Domain %s does not have a process yet.") % (domain), level=8)
added_domains.append(domain)
if not removed_domains and not added_domains:
try:
sleep_between_domain_operations_in_seconds = (float)(
conf.get(
'kolab',
'domain_sync_interval'
)
)
time.sleep(sleep_between_domain_operations_in_seconds)
except ValueError:
time.sleep(600)
log.debug(
_l("added domains: %r, removed domains: %r") % (added_domains, removed_domains),
level=8
)
for domain in added_domains:
domain_auth[domain] = Process(domain)
domain_auth[domain].start()
# Pause or hammer your LDAP server to death
if len(added_domains) >= 5:
time.sleep(10)
for domain in removed_domains:
domain_auth[domain].terminate()
del domain_auth[domain]
def reload_config(self, *args, **kw):
pass
def remove_pid(self, *args, **kw):
"""
Remove our PID file.
Note that multiple processes can attempt to do this very same thing
at the same time, and therefore we need to test if the PID file
exists, and only try/except removing it.
"""
if os.access(conf.pidfile, os.R_OK):
try:
os.remove(conf.pidfile)
except Exception:
pass
raise SystemExit
def set_signal_handlers(self):
import signal
signal.signal(signal.SIGHUP, self.reload_config)
signal.signal(signal.SIGTERM, self.remove_pid)
def write_pid(self):
pid = os.getpid()
fp = open(conf.pidfile, 'w')
fp.write("%d\n" % (pid))
fp.close()
diff --git a/saslauthd/__init__.py b/saslauthd/__init__.py
index 2cb76d6..30e8189 100644
--- a/saslauthd/__init__.py
+++ b/saslauthd/__init__.py
@@ -1,376 +1,378 @@
# Copyright 2010-2016 Kolab Systems AG (http://www.kolabsys.com)
#
# Jeroen van Meeuwen (Kolab Systems) <vanmeeuwen a kolabsys.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/>.
#
"""
SASL authentication daemon for multi-domain Kolab deployments.
The SASL authentication daemon can use the domain name space or realm
in the login credentials to determine the backend authentication
database, and authenticate the credentials supplied against that
backend.
"""
from optparse import OptionParser
from ConfigParser import SafeConfigParser
import grp
import os
import pwd
import shutil
import sys
import time
import traceback
import pykolab
from pykolab import utils
from pykolab.auth import Auth
from pykolab.constants import *
from pykolab.translate import _
log = pykolab.getLogger('saslauthd')
conf = pykolab.getConf()
class SASLAuthDaemon(object):
def __init__(self):
daemon_group = conf.add_cli_parser_option_group(_("Daemon Options"))
daemon_group.add_option(
"--fork",
dest = "fork_mode",
action = "store_true",
default = False,
help = _("Fork to the background.")
)
daemon_group.add_option(
"-p",
"--pid-file",
dest = "pidfile",
action = "store",
default = "/var/run/kolab-saslauthd/kolab-saslauthd.pid",
help = _("Path to the PID file to use.")
)
daemon_group.add_option(
"-s",
"--socket",
dest = "socketfile",
action = "store",
default = "/var/run/saslauthd/mux",
help = _("Socket file to bind to.")
)
daemon_group.add_option(
"-u",
"--user",
dest = "process_username",
action = "store",
default = "kolab",
help = _("Run as user USERNAME"),
metavar = "USERNAME"
)
daemon_group.add_option(
"-g",
"--group",
dest = "process_groupname",
action = "store",
default = "kolab",
help = _("Run as group GROUPNAME"),
metavar = "GROUPNAME"
)
conf.finalize_conf()
try:
utils.ensure_directory(
os.path.dirname(conf.pidfile),
conf.process_username,
conf.process_groupname
)
except Exception, errmsg:
log.error(_("Could not create %r: %r") % (os.path.dirname(conf.pidfile), errmsg))
sys.exit(1)
self.thread_count = 0
def run(self):
"""
Run the SASL authentication daemon.
"""
exitcode = 0
self._ensure_socket_dir()
self._drop_privileges()
try:
pid = os.getpid()
if conf.fork_mode:
pid = os.fork()
if pid > 0 and not conf.fork_mode:
self.do_saslauthd()
elif pid > 0:
sys.exit(0)
else:
# Give up the session, all control,
# all open file descriptors, see #5151
os.chdir("/")
- os.umask(0)
+ old_umask = os.umask(0)
os.setsid()
pid = os.fork()
if pid > 0:
sys.exit(0)
sys.stderr.flush()
sys.stdout.flush()
os.close(0)
os.close(1)
os.close(2)
+ os.umask(old_umask)
+
self.thread_count += 1
log.remove_stdout_handler()
self.set_signal_handlers()
self.write_pid()
self.do_saslauthd()
except SystemExit, e:
exitcode = e
except KeyboardInterrupt:
exitcode = 1
log.info(_("Interrupted by user"))
except AttributeError, e:
exitcode = 1
traceback.print_exc()
print >> sys.stderr, _("Traceback occurred, please report a " +
"bug at https://issues.kolab.org")
except TypeError, e:
exitcode = 1
traceback.print_exc()
log.error(_("Type Error: %s") % e)
except:
exitcode = 2
traceback.print_exc()
print >> sys.stderr, _("Traceback occurred, please report a " +
"bug at https://issues.kolab.org")
sys.exit(exitcode)
def do_saslauthd(self):
"""
Create the actual listener socket, and handle the authentication.
The actual authentication handling is passed on to the appropriate
backend authentication classes through the more generic Auth().
"""
import binascii
import socket
import struct
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
# TODO: The saslauthd socket path could be a setting.
try:
os.remove(conf.socketfile)
except:
# TODO: Do the "could not remove, could not start" dance
pass
s.bind(conf.socketfile)
os.chmod(conf.socketfile, 0777)
s.listen(5)
while 1:
max_tries = 20
cur_tries = 0
bound = False
while not bound:
cur_tries += 1
try:
(clientsocket, address) = s.accept()
bound = True
except Exception, errmsg:
log.error(
_("kolab-saslauthd could not accept " +
"connections on socket: %r") % (errmsg)
)
if cur_tries >= max_tries:
log.fatal(_("Maximum tries exceeded, exiting"))
sys.exit(1)
time.sleep(1)
received = clientsocket.recv(4096)
login = []
start = 0
end = 2
while end < len(received):
(length,) = struct.unpack("!H", received[start:end])
start += 2
end += length
(value,) = struct.unpack("!%ds" % (length), received[start:end])
start += length
end = start + 2
login.append(value)
if len(login) == 4:
realm = login[3]
elif len(login[0].split('@')) > 1:
realm = login[0].split('@')[1]
else:
realm = conf.get('kolab', 'primary_domain')
auth = Auth(domain=realm)
auth.connect()
success = False
try:
success = auth.authenticate(login)
except:
success = False
if success:
# #1170: Catch broken pipe error (incomplete authentication request)
try:
clientsocket.send(struct.pack("!H2s", 2, "OK"))
except:
pass
else:
# #1170: Catch broken pipe error (incomplete authentication request)
try:
clientsocket.send(struct.pack("!H2s", 2, "NO"))
except:
pass
clientsocket.close()
auth.disconnect()
def reload_config(self, *args, **kw):
pass
def remove_pid(self, *args, **kw):
if os.access(conf.pidfile, os.R_OK):
os.remove(conf.pidfile)
raise SystemExit
def set_signal_handlers(self):
import signal
signal.signal(signal.SIGHUP, self.reload_config)
signal.signal(signal.SIGTERM, self.remove_pid)
def write_pid(self):
pid = os.getpid()
fp = open(conf.pidfile, 'w')
fp.write("%d\n" % (pid))
fp.close()
def _ensure_socket_dir(self):
utils.ensure_directory(
os.path.dirname(conf.socketfile),
conf.process_username,
conf.process_groupname
)
def _drop_privileges(self):
try:
try:
(ruid, euid, suid) = os.getresuid()
(rgid, egid, sgid) = os.getresgid()
except AttributeError, errmsg:
ruid = os.getuid()
rgid = os.getgid()
if ruid == 0:
# Means we can setreuid() / setregid() / setgroups()
if rgid == 0:
# Get group entry details
try:
(
group_name,
group_password,
group_gid,
group_members
) = grp.getgrnam(conf.process_groupname)
except KeyError:
print >> sys.stderr, _("Group %s does not exist") % (
conf.process_groupname
)
sys.exit(1)
# Set real and effective group if not the same as current.
if not group_gid == rgid:
log.debug(
_("Switching real and effective group id to %d") % (
group_gid
),
level=8
)
os.setregid(group_gid, group_gid)
if ruid == 0:
# Means we haven't switched yet.
try:
(
user_name,
user_password,
user_uid,
user_gid,
user_gecos,
user_homedir,
user_shell
) = pwd.getpwnam(conf.process_username)
except KeyError:
print >> sys.stderr, _("User %s does not exist") % (
conf.process_username
)
sys.exit(1)
# Set real and effective user if not the same as current.
if not user_uid == ruid:
log.debug(
_("Switching real and effective user id to %d") % (
user_uid
),
level=8
)
os.setreuid(user_uid, user_uid)
except:
log.error(_("Could not change real and effective uid and/or gid"))
diff --git a/wallace/__init__.py b/wallace/__init__.py
index 57443cd..4a22e3e 100644
--- a/wallace/__init__.py
+++ b/wallace/__init__.py
@@ -1,678 +1,680 @@
# -*- coding: utf-8 -*-
# Copyright 2010-2019 Kolab Systems AG (http://www.kolabsys.com)
#
# Jeroen van Meeuwen (Kolab Systems) <vanmeeuwen a kolabsys.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/>.
#
from __future__ import print_function
import asyncore
from distutils import version
import grp
import multiprocessing
import os
import pwd
import traceback
import smtpd
import socket
import struct
import sys
import tempfile
from threading import _Timer
import time
import pykolab
from pykolab import utils
from pykolab.logger import StderrToLogger
from pykolab.translate import _ as _l
import modules
from modules import cb_action_ACCEPT
# pylint: disable=invalid-name
log = pykolab.getLogger('pykolab.wallace')
sys.stderr = StderrToLogger(log)
conf = pykolab.getConf()
def pickup_message(filepath, *args, **kwargs):
wallace_modules = args[0]
if 'module' in kwargs:
# Cause the previous modules to be skipped
wallace_modules = wallace_modules[(wallace_modules.index(kwargs['module']) + 1):]
log.debug(_l("Wallace modules: %r") % (wallace_modules), level=8)
# Execute the module
if 'stage' in kwargs:
modules.execute(kwargs['module'], filepath, stage=kwargs['stage'])
else:
modules.execute(kwargs['module'], filepath)
# After all modules are executed, continue with a call to
# accept the message and re-inject in to Postfix.
continue_with_accept = True
for module in wallace_modules:
try:
result_filepath = modules.execute(module, filepath)
except Exception:
log.error(
"Module %s.execute() failed on message %r with error: %s" % (
module,
filepath,
traceback.format_exc()
)
)
result_filepath = False
if result_filepath is not None and result_filepath is not False:
filepath = result_filepath
else:
# A module has returned False or None
continue_with_accept = False
# The message very likely has been consumed by the module that returned False
if not os.path.isfile(filepath):
break
if continue_with_accept:
cb_action_ACCEPT('wallace', filepath)
def modules_heartbeat(wallace_modules):
lastrun = 0
while not multiprocessing.current_process().finished.is_set():
try:
for module in wallace_modules:
try:
modules.heartbeat(module, lastrun)
except Exception:
log.error(
"Module %s.heartbeat() failed with error: %s" % (
module,
traceback.format_exc()
)
)
lastrun = int(time.time())
multiprocessing.current_process().finished.wait(60)
except (SystemExit, KeyboardInterrupt) as errmsg:
log.warning("Exiting %s, %s" % (multiprocessing.current_process().name, errmsg))
break
def worker_process(*args, **kwargs):
import signal
signal.signal(signal.SIGINT, signal.SIG_IGN)
log.debug("Worker process %s initializing" % (multiprocessing.current_process().name), level=1)
# pylint: disable=too-few-public-methods
class Timer(_Timer):
def run(self):
while True:
while not self.finished.is_set():
self.finished.wait(self.interval)
log.debug(_l("Timer looping function '%s' every %ss") % (
self.function.__name__,
self.interval
), level=8)
self.function(*self.args, **self.kwargs)
self.finished.set()
log.debug(
_l("Timer loop %s") % ('still active', 'finished')[self.finished.is_set()],
level=8
)
break
class WallaceDaemon:
heartbeat = None
timer = None
def __init__(self):
self.current_connections = 0
self.max_connections = 24
self.parent_pid = None
self.pool = None
daemon_group = conf.add_cli_parser_option_group(_l("Daemon Options"))
daemon_group.add_option(
"--fork",
dest="fork_mode",
action="store_true",
default=False,
help=_l("Fork to the background.")
)
daemon_group.add_option(
"-b", "--bind",
dest="wallace_bind_address",
action="store",
default="localhost",
help=_l("Bind address for Wallace.")
)
daemon_group.add_option(
"-g", "--group",
dest="process_groupname",
action="store",
default="kolab",
help=_l("Run as group GROUPNAME"),
metavar="GROUPNAME"
)
daemon_group.add_option(
"--threads",
dest="max_threads",
action="store",
default=4,
type=int,
help=_l("Number of threads to use.")
)
daemon_group.add_option(
"--max-tasks",
dest="max_tasks",
action="store",
default=None,
type=int,
help=_l("Number of tasks per process.")
)
daemon_group.add_option(
"-p", "--pid-file",
dest="pidfile",
action="store",
default="/var/run/wallaced/wallaced.pid",
help=_l("Path to the PID file to use.")
)
daemon_group.add_option(
"--port",
dest="wallace_port",
action="store",
default=10026,
type=int,
help=_l("Port that Wallace is supposed to use.")
)
daemon_group.add_option(
"-u", "--user",
dest="process_username",
action="store",
default="kolab",
help=_l("Run as user USERNAME"),
metavar="USERNAME"
)
conf.finalize_conf()
utils.ensure_directory(
os.path.dirname(conf.pidfile),
conf.process_username,
conf.process_groupname
)
if conf.debuglevel >= 9:
mp_logger = multiprocessing.get_logger()
mp_logger.setLevel(multiprocessing.SUBDEBUG)
mp_logger.debug('Python multi-processing logger started')
modules.initialize()
self.modules = conf.get_list('wallace', 'modules')
if not self.modules:
self.modules = []
# pylint: disable=too-many-branches
# pylint: disable=too-many-statements
def do_wallace(self):
self.parent_pid = os.getpid()
if version.StrictVersion(sys.version[:3]) >= version.StrictVersion("2.7"):
self.pool = multiprocessing.Pool(conf.max_threads, worker_process, (), conf.max_tasks)
else:
self.pool = multiprocessing.Pool(conf.max_threads, worker_process, ())
self.pickup_spool_messages(sync=True)
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
bound = False
shutdown = False
while not bound:
try:
if shutdown:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind((conf.wallace_bind_address, conf.wallace_port))
bound = True
# pylint: disable=broad-except
except Exception:
log.warning(
_l("Could not bind to socket on port %d on bind address %s") % (
conf.wallace_port,
conf.wallace_bind_address
)
)
while not shutdown:
try:
s.shutdown(socket.SHUT_RDWR)
shutdown = True
# pylint: disable=broad-except
except Exception:
log.warning(_l("Could not shut down socket"))
time.sleep(1)
s.close()
time.sleep(1)
s.listen(5)
self.timer = Timer(180, self.pickup_spool_messages, args=[], kwargs={'sync': True})
# pylint: disable=attribute-defined-outside-init
self.timer.daemon = True
self.timer.start()
# start background process to run periodic jobs in active modules
try:
self.heartbeat = multiprocessing.Process(
target=modules_heartbeat,
name='Wallace_Heartbeat',
args=[self.modules]
)
self.heartbeat.finished = multiprocessing.Event()
self.heartbeat.daemon = True
self.heartbeat.start()
except Exception as errmsg:
log.error("Failed to start heartbeat daemon: %s" % (errmsg))
finally:
log.debug(
"Wallace heartbeat is %s" % ('not alive', 'alive')[self.heartbeat.is_alive()],
level=8
)
try:
while 1:
while self.current_connections >= self.max_connections:
log.debug(
_l("Reached limit of max connections of: %s. Sleeping for 0.5s") % (
self.max_connections
),
level=6
)
time.sleep(0.5)
pair = s.accept()
log.debug(
_l("Accepted connection %r with address %r") % (
pair if pair is not None else (None, None)
),
level=8
)
if pair is not None:
self.current_connections += 1
connection, address = pair
_smtpd = smtpd
# Set DEBUGSTREAM of smtpd to log to pykolab logger
if conf.debuglevel > 8:
_smtpd.DEBUGSTREAM = pykolab.logger.StderrToLogger(log)
log.debug(_l("Creating SMTPChannel for accepted message"), level=8)
_smtpd.SMTPChannel(self, connection, address)
asyncore.loop()
else:
log.error(_l("Socket accepted, but (conn, address) tuple is None."))
# pylint: disable=broad-except
except Exception:
traceback.print_exc()
s.shutdown(1)
s.close()
# shut down hearbeat process
self.heartbeat.terminate()
self.timer.cancel()
self.timer.join()
# pylint: disable=no-self-use
def data_header(self, mailfrom, rcpttos):
COMMASPACE = ', '
return "X-Kolab-From: " + mailfrom + "\r\n" + \
"X-Kolab-To: " + COMMASPACE.join(rcpttos) + "\r\n"
def pickup_spool_messages(self, sync=False):
# Mind you to include the trailing slash
pickup_path = '/var/spool/pykolab/wallace/'
messages = []
for root, _, files in os.walk(pickup_path):
for filename in files:
messages.append((root, filename))
for root, filename in messages:
filepath = os.path.join(root, filename)
try:
# ignore calls on too young files
if os.stat(filepath).st_mtime + 150 > time.time():
log.debug("File not more than 150s old. Skipping %s" % (filepath), level=8)
continue
# ignore calls on lock files
if '/locks/' in filepath:
log.debug("File is in locks directory. Skipping %s" % (filepath), level=8)
continue
# pylint: disable=broad-except
except Exception as errmsg:
log.error("Error: %s. Skipping %s" % (errmsg, filepath))
continue
if not root == pickup_path:
module = os.path.dirname(root).replace(pickup_path, '')
# Compare uppercase status (specifically, DEFER) with
# lowercase (plugin names).
#
# The messages in DEFER are supposed to be picked up by
# another thread, whereas the messages in other directories
# are pending being handled by their respective plugins.
#
# TODO: Handle messages in spool directories for which a
# plugin had been enabled, but is not enabled any longer.
#
if module.lower() == "defer":
# Wallace was unable to deliver to re-injection smtpd.
# Skip it, another thread is picking up the deferred
# messages.
continue
stage = root.replace(pickup_path, '').split('/')
if len(stage) < 2:
stage = None
else:
stage = stage[1]
if stage.lower() == "hold":
continue
# Do not handle messages in a defer state.
if stage.lower() == "defer":
continue
self.current_connections += 1
if sync:
pickup_message(filepath, self.modules, module=module, stage=stage)
else:
self.pool.apply_async(
pickup_message,
(
filepath,
(self.modules),
{'module': module, 'stage': stage}
)
)
self.current_connections -= 1
continue
self.current_connections += 1
if sync:
pickup_message(filepath, self.modules)
else:
self.pool.apply_async(pickup_message, (filepath, (self.modules)))
self.current_connections -= 1
def process_message(self, peer, mailfrom, rcpttos, data):
"""
We have retrieved the message. This should be as fast as possible,
and not ever block.
"""
header = self.data_header(mailfrom, rcpttos)
(fp, filename) = tempfile.mkstemp(dir="/var/spool/pykolab/wallace/")
# @TODO: and add line separator (\n or \r\n?)
# we should make sure there's only one line separator between
# kolab headers and the original message (data)
os.write(fp, header)
os.write(fp, data)
os.close(fp)
log.debug(_l("Started processing accepted message %s") % filename, level=8)
self.pool.apply_async(pickup_message, (filename, (self.modules)))
self.current_connections -= 1
return "250 OK Message %s queued" % (filename)
def reload_config(self, *args, **kwargs):
pass
def remove_pid(self, *args, **kwargs):
try:
if os.getpid() == self.parent_pid:
log.debug("Stopping process %s" % multiprocessing.current_process().name, level=8)
log.debug(_l("Terminating processes pool"), level=8)
self.pool.close()
if hasattr(self, 'timer'):
if not self.timer.finished.is_set():
log.debug("Canceling Wallace Timer", level=8)
self.timer.finished.set()
self.timer.cancel()
log.debug(_l("Terminating heartbeat process"), level=8)
self.heartbeat.finished.set()
self.heartbeat.terminate()
self.pool.close()
self.pool.join(5)
self.timer.join(5)
self.heartbeat.join(5)
if os.access(conf.pidfile, os.R_OK):
log.warning(_l("Removing PID file %s") % conf.pidfile)
os.remove(conf.pidfile)
log.warning("Exiting!")
sys.exit()
else:
sys.exit(0)
except Exception as errmsg:
log.debug(
"Exception while trying to stop %s: %s" % (
multiprocessing.current_process().name, errmsg
),
level=8
)
sys.exit(1)
sys.exit(0)
# pylint: disable=too-many-locals
def run(self): # noqa: C901
"""
Run the Wallace daemon.
"""
exitcode = 0
try:
try:
(ruid, _, _) = os.getresuid()
(rgid, _, _) = os.getresgid()
except AttributeError:
ruid = os.getuid()
rgid = os.getgid()
if ruid == 0:
# Means we can setreuid() / setregid() / setgroups()
if rgid == 0:
# Get group entry details
try:
(_, _, group_gid, _) = grp.getgrnam(conf.process_groupname)
except KeyError:
print(_l("Group %s does not exist") % (conf.process_groupname))
sys.exit(1)
# Set real and effective group if not the same as current.
if not group_gid == rgid:
log.debug(
_l("Switching real and effective group id to %d") % (
group_gid
),
level=8
)
os.setregid(group_gid, group_gid)
if ruid == 0:
# Means we haven't switched yet.
try:
(_, _, user_uid, _, _, _, _) = pwd.getpwnam(conf.process_username)
except KeyError:
print(_l("User %s does not exist") % (conf.process_username))
sys.exit(1)
# Set real and effective user if not the same as current.
if not user_uid == ruid:
log.debug(
_l("Switching real and effective user id to %d") % (
user_uid
),
level=8
)
os.setreuid(user_uid, user_uid)
# pylint: disable=broad-except
except Exception:
log.error(_l("Could not change real and effective uid and/or gid"))
try:
pid = os.getpid()
if conf.fork_mode:
pid = os.fork()
if pid > 0 and not conf.fork_mode:
self.do_wallace()
elif pid > 0:
sys.exit(0)
else:
# Give up the session, all control,
# all open file descriptors, see #5151
os.chdir("/")
- os.umask(0)
+ old_umask = os.umask(0)
os.setsid()
pid = os.fork()
if pid > 0:
sys.exit(0)
sys.stderr.flush()
sys.stdout.flush()
os.close(0)
os.close(1)
os.close(2)
os.open(os.devnull, os.O_RDONLY)
os.open(os.devnull, os.O_WRONLY)
os.open(os.devnull, os.O_WRONLY)
+ os.umask(old_umask)
+
log.remove_stdout_handler()
self.set_signal_handlers()
self.write_pid()
self.do_wallace()
except SystemExit as errmsg:
exitcode = errmsg
except KeyboardInterrupt:
exitcode = 1
log.info(_l("Interrupted by user"))
except AttributeError:
exitcode = 1
traceback.print_exc()
print(_l("Traceback occurred, please report a bug."))
except TypeError as errmsg:
exitcode = 1
traceback.print_exc()
log.error(_l("Type Error: %s") % errmsg)
except Exception:
exitcode = 2
traceback.print_exc()
print(_l("Traceback occurred, please report a bug."))
sys.exit(exitcode)
def set_signal_handlers(self):
import signal
signal.signal(signal.SIGHUP, self.reload_config)
signal.signal(signal.SIGTERM, self.remove_pid)
def write_pid(self):
pid = os.getpid()
if os.access(os.path.dirname(conf.pidfile), os.W_OK):
fp = open(conf.pidfile, 'w')
fp.write("%d\n" % (pid))
fp.close()
else:
print(_l("Could not write pid file %s") % (conf.pidfile))