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'''launchd support for Bcfg2'''
__revision__ = '$Revision$'
import os
import Bcfg2.Client.Tools
class launchd(Bcfg2.Client.Tools.Tool):
'''Support for Mac OS X Launchd Services'''
__handles__ = [('Service', 'launchd')]
__execs__ = ['/bin/launchctl', '/usr/bin/defaults']
name = 'launchd'
__req__ = {'Service':['name', 'status']}
'''
currently requires the path to the plist to load/unload,
and Name is acually a reverse-fqdn (or the label)
'''
def FindPlist(self, entry):
'''Locate plist file that provides given reverse-fqdn name
/Library/LaunchAgents Per-user agents provided by the administrator.
/Library/LaunchDaemons System wide daemons provided by the administrator.
/System/Library/LaunchAgents Mac OS X Per-user agents.
/System/Library/LaunchDaemons Mac OS X System wide daemons.'''
plistLocations = ["/Library/LaunchDaemons", "/System/Library/LaunchDaemons"]
plistMapping = {}
for directory in plistLocations:
for daemon in os.listdir(directory):
try:
if daemon.endswith(".plist"):
d = daemon[:(len(daemon)-6)]
else:
d = daemon
plistMapping[self.cmd.run( \
"defaults read %s/%s Label" % (directory, d))[1][0]] = \
"%s/%s"%(directory, daemon)
except KeyError: #perhaps this could be more robust
pass
try:
return plistMapping[entry.get('name')]
except KeyError:
return None
def VerifyService(self, entry, _):
'''Verify Launchd Service Entry'''
try:
services = self.cmd.run("/bin/launchctl list")[1]
except IndexError:#happens when no services are running (should be never)
services = []
if entry.get('name') in services:#doesn't check if non-spawning services are Started
return entry.get('status') == 'on'
else:
self.logger.debug("Didn't find service Loaded (launchd running under same user as bcfg)")
return entry.get('status') == 'off'
try: #Perhaps add the "-w" flag to load and unload to modify the file itself!
self.cmd.run("/bin/launchctl load -w %s" % self.FindPlist(entry))
except IndexError:
return 'on'
return False
def InstallService(self, entry):
'''Enable or Disable launchd Item'''
if entry.get('status') == 'on':
cmdrc = self.cmd.run("/bin/launchctl load -w %s" % self.FindPlist(entry))[0]
else:
cmdrc = self.cmd.run("/bin/launchctl unload -w %s" % self.FindPlist(entry))[0]
return cmdrc == 0
def Remove(self, svcs):
'''Remove Extra launchd entries'''
pass
def FindExtra(self):
'''Find Extra launchd Services'''
try:
allsrv = self.cmd.run("/bin/launchctl list")[1]
except IndexError:
allsrv = []
[allsrv.remove(svc) for svc in [entry.get("name") for entry
in self.getSupportedEntries()] if svc in allsrv]
return [Bcfg2.Client.XML.Element("Service", type='launchd', name=name, status='on') for name in allsrv]
def BundleUpdated(self, bundle, states):
'''Reload launchd plist'''
for entry in [entry for entry in bundle if self.handlesEntry(entry)]:
if not self.canInstall(entry):
self.logger.error("Insufficient information to restart service %s" % (entry.get('name')))
else:
if entry.get('status') == 'on' and self.FindPlist(entry):
self.logger.info("Reloading launchd service %s" % (entry.get("name")))
#stop?
self.cmd.run("/bin/launchctl unload -w %s" % (self.FindPlist(entry)))#what if it disappeared? how do we stop services that are currently running but the plist disappeared?!
self.cmd.run("/bin/launchctl load -w %s" % (self.FindPlist(entry)))
else:
#only if necessary....
self.cmd.run("/bin/launchctl unload -w %s" % (self.FindPlist(entry)))
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