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91 lines
3.1 KiB
Python
91 lines
3.1 KiB
Python
# Copyright 2011 - 2016 Patrick Ulbrich <zulu99@gmx.net>
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# Copyright 2011 Ralf Hersel <ralf.hersel@gmx.net>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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import threading
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import logging
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from Mailnag.common.utils import try_call
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from Mailnag.common.i18n import _
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from Mailnag.common.plugins import HookTypes
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from Mailnag.daemon.mails import MailSyncer
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class MailChecker:
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def __init__(self, cfg, memorizer, hookreg, conntest):
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self._firstcheck = True # first check after startup
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self._mailcheck_lock = threading.Lock()
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self._mailsyncer = MailSyncer(cfg)
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self._memorizer = memorizer
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self._hookreg = hookreg
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self._conntest = conntest
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self._zero_mails_on_last_check = True
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def check(self, accounts):
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# make sure multiple threads (idler and polling thread)
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# don't check for mails simultaneously.
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with self._mailcheck_lock:
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logging.info('Checking %s email account(s).' % len(accounts))
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for f in self._hookreg.get_hook_funcs(HookTypes.MAIL_CHECK):
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try_call( f )
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if self._conntest.is_offline():
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logging.warning('No internet connection.')
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return
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all_mails = self._mailsyncer.sync(accounts)
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unseen_mails = []
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new_mails = []
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for mail in all_mails:
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if self._memorizer.contains(mail.id): # mail was fetched before
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if self._memorizer.is_unseen(mail.id): # mail was not marked as seen
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unseen_mails.append(mail)
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if self._firstcheck:
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new_mails.append(mail)
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else: # mail is fetched the first time
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unseen_mails.append(mail)
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new_mails.append(mail)
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self._memorizer.sync(all_mails)
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self._memorizer.save()
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self._firstcheck = False
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# apply filter plugin hooks
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filtered_unseen_mails = unseen_mails
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for f in self._hookreg.get_hook_funcs(HookTypes.FILTER_MAILS):
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filtered_unseen_mails = try_call( lambda: f(filtered_unseen_mails), filtered_unseen_mails )
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filtered_new_mails = [m for m in new_mails if m in filtered_unseen_mails]
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if len(filtered_new_mails) > 0:
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for f in self._hookreg.get_hook_funcs(HookTypes.MAILS_ADDED):
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try_call( lambda: f(filtered_new_mails, filtered_unseen_mails) )
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elif (not self._zero_mails_on_last_check) and (len(filtered_unseen_mails) == 0):
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# TODO : signal MailsRemoved if not all mails have been removed
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# (i.e. if mailcount has been decreased)
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for f in self._hookreg.get_hook_funcs(HookTypes.MAILS_REMOVED):
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try_call( lambda: f(filtered_unseen_mails) )
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self._zero_mails_on_last_check = (len(filtered_unseen_mails) == 0)
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return
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