98 lines
3.6 KiB
Python
98 lines
3.6 KiB
Python
#!/usr/bin/env python
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# coding=utf-8
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"""
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ICS driven spam learning daemon for Kopano / SpamAssasin
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See included readme.md for more information.
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"""
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import shlex
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import subprocess
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import time
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import kopano
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from MAPI.Tags import *
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from kopano import Config, log_exc
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CONFIG = {
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'run_as_user': Config.string(default="kopano"),
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'run_as_group': Config.string(default="kopano"),
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'spam_header': Config.string(default="x-spam-status"),
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'learncmd': Config.string(default="/usr/bin/sudo -u amavis /usr/bin/sa-learn --spam"),
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'unlearncmd': Config.string(default="/usr/bin/sudo -u amavis /usr/bin/sa-learn --ham")
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}
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class Service(kopano.Service):
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def main(self):
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server = self.server
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state = server.state
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catcher = Checker(self)
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with log_exc(self.log):
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while True:
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try:
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state = server.sync(catcher, state)
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except Exception as e:
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if e.hr == MAPI_E_NETWORK_ERROR:
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self.log.info('Trying to reconnect to Server in %s seconds' % 5)
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else:
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self.log.info('Error: [%s]' % e)
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time.sleep(5)
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time.sleep(1)
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class Checker(object):
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def __init__(self, service):
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self.log = service.log
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self.learncmd = service.config['learncmd']
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self.unlearncmd = service.config['unlearncmd']
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self.spamheader = service.config['spam_header']
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def update(self, item, flags):
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if item.message_class == 'IPM.Note':
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spamstatus = item.header(self.spamheader)
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if spamstatus is not None:
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if item.store.user: # skip public stores
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if item.folder == item.store.user.junk and not spamstatus.lower().startswith('yes'):
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self.learn(item)
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if item.folder == item.store.user.inbox and spamstatus.lower().startswith('yes'):
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self.unlearn(item)
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def learn(self, item):
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with log_exc(self.log):
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try:
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spameml = item.eml()
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havespam = True
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except Exception as e:
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self.log.info('Failed to extract eml of email: [%s] [%s]' % (e, item.entryid))
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if havespam:
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try:
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p = subprocess.Popen(shlex.split(self.learncmd), stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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learning, output_err = p.communicate(spameml)
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self.log.info('[%s] sa-learn: %s' % (item.store.user.name, learning.strip('\n')))
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except Exception as e:
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self.log.info('sa-learn failed: [%s] [%s]' % (e, item.entryid))
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def unlearn(self, item):
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with log_exc(self.log):
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try:
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hameml = item.eml()
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haveham = True
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except Exception as e:
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self.log.info('Failed to extract eml of email: [%s] [%s]' % (e, item.entryid))
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if haveham:
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try:
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p = subprocess.Popen(shlex.split(self.unlearncmd), stdin=subprocess.PIPE, stdout=subprocess.PIPE)
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unlearning, output_err = p.communicate(hameml)
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self.log.info('[%s] sa-unlearn: %s' % (item.store.user.name, unlearning.strip('\n')))
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except Exception as e:
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self.log.info('sa-unlearn failed: [%s] [%s]' % (e, item.entryid))
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def main():
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parser = kopano.parser('ckpsF') # select common cmd-line options
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options, args = parser.parse_args()
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service = Service('spamd', config=CONFIG, options=options)
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service.start()
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if __name__ == '__main__':
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main()
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