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import os
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import logging
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import problem
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class ProblemWatcher(object):
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''' New problem signal handler attached to DBus signal
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Use ``auth=True`` if authentication should be attempted for
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new problem that doesn't belong to current user. If not
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set such a problem is ignored.
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'''
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def __init__(self, auth):
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import dbus
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from gi.repository import GObject as gobject
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from dbus.mainloop.glib import DBusGMainLoop
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gobject.threads_init()
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bus = dbus.SystemBus(
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mainloop=DBusGMainLoop(),
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private=True)
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self.bus = bus
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self.auth = auth
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self.callbacks = []
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# local context required!?
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# http://rmarko.fedorapeople.org/random/high_five.jpg
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evt_match = self.bus.add_signal_receiver(
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self._new_problem_handler,
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signal_name='Crash', path='/org/freedesktop/problems')
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# add second listener for the old path
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evt_match_old_path = self.bus.add_signal_receiver(
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self._new_problem_handler,
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signal_name='Crash', path='/com/redhat/abrt')
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self.loop = gobject.MainLoop()
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def _new_problem_handler(self, comp, ddir, uid, uuid, duphash):
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logging.debug('New problem notification received')
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if int(uid) != os.getuid() and not self.auth:
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logging.debug('Auth disabled, ignoring crash with'
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' uid: {0}'.format(uid))
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return
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prob = problem.tools.problemify(ddir, problem.proxies.get_proxy())
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for cb in self.callbacks:
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cb(prob)
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def add_callback(self, fun):
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''' Add callback to be called when new problem occurs.
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Each callback function receives ``Problem`` instance
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'''
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self.callbacks.append(fun)
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def run(self):
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''' Start event listener loop '''
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self.loop.run()
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def quit(self):
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''' Stop event listener loop '''
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self.loop.quit()
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