3284e010ff
Recently the internal function use of imaplib2's _get_untagged_response() was switched to use the public documented .response() function (which should return the same data). However within a few fays we received reports that both uses of a) the UIDVALIDITY fetching and b) the APPENDUID fetching returned [None] as data although the IMAP log definitely shows that data was returned. Revert to using the undocumented internal imaplib2 function, that seemed to have worked without problems. This needs to be taken up to the imaplib2 developer. Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
732 lines
32 KiB
Python
732 lines
32 KiB
Python
# IMAP folder support
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# Copyright (C) 2002-2011 John Goerzen & contributors
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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 St, Fifth Floor, Boston, MA 02110-1301 USA
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import email
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import random
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import binascii
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import re
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import time
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from sys import exc_info
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from Base import BaseFolder
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from offlineimap import imaputil, imaplibutil, OfflineImapError
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from offlineimap.imaplib2 import MonthNames
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try: # python 2.6 has set() built in
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set
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except NameError:
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from sets import Set as set
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class IMAPFolder(BaseFolder):
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def __init__(self, imapserver, name, repository):
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name = imaputil.dequote(name)
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self.sep = imapserver.delim
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super(IMAPFolder, self).__init__(name, repository)
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self.expunge = repository.getexpunge()
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self.root = None # imapserver.root
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self.imapserver = imapserver
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self.messagelist = None
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self.randomgenerator = random.Random()
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#self.ui is set in BaseFolder
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def selectro(self, imapobj, force = False):
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"""Select this folder when we do not need write access.
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Prefer SELECT to EXAMINE if we can, since some servers
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(Courier) do not stabilize UID validity until the folder is
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selected.
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.. todo: Still valid? Needs verification
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:param: Enforce new SELECT even if we are on that folder already.
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:returns: raises :exc:`OfflineImapError` severity FOLDER on error"""
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try:
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imapobj.select(self.getfullname(), force = force)
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except imapobj.readonly:
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imapobj.select(self.getfullname(), readonly = True, force = force)
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def suggeststhreads(self):
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return 1
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def waitforthread(self):
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self.imapserver.connectionwait()
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def getcopyinstancelimit(self):
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return 'MSGCOPY_' + self.repository.getname()
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def getuidvalidity(self):
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imapobj = self.imapserver.acquireconnection()
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try:
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# SELECT receives UIDVALIDITY response
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self.selectro(imapobj)
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# note: we would want to use .response() here but that
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# often seems to return [None], even though we have
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# data. TODO
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uidval = imapobj._get_untagged_response('UIDVALIDITY')
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assert uidval != [None], "response('UIDVALIDITY') returned [None]!"
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return long(uidval[-1])
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finally:
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self.imapserver.releaseconnection(imapobj)
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def quickchanged(self, statusfolder):
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# An IMAP folder has definitely changed if the number of
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# messages or the UID of the last message have changed. Otherwise
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# only flag changes could have occurred.
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retry = True # Should we attempt another round or exit?
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while retry:
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retry = False
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imapobj = self.imapserver.acquireconnection()
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try:
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# Select folder and get number of messages
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restype, imapdata = imapobj.select(self.getfullname(), True,
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True)
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except OfflineImapError, e:
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# retry on dropped connections, raise otherwise
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self.imapserver.releaseconnection(imapobj, True)
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if e.severity == OfflineImapError.ERROR.FOLDER_RETRY:
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retry = True
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else: raise
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finally:
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self.imapserver.releaseconnection(imapobj)
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# 1. Some mail servers do not return an EXISTS response
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# if the folder is empty. 2. ZIMBRA servers can return
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# multiple EXISTS replies in the form 500, 1000, 1500,
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# 1623 so check for potentially multiple replies.
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if imapdata == [None]:
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return True
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maxmsgid = 0
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for msgid in imapdata:
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maxmsgid = max(long(msgid), maxmsgid)
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# Different number of messages than last time?
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if maxmsgid != statusfolder.getmessagecount():
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return True
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return False
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def cachemessagelist(self):
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maxage = self.config.getdefaultint("Account %s" % self.accountname,
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"maxage", -1)
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maxsize = self.config.getdefaultint("Account %s" % self.accountname,
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"maxsize", -1)
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self.messagelist = {}
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imapobj = self.imapserver.acquireconnection()
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try:
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res_type, imapdata = imapobj.select(self.getfullname(), True, True)
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if imapdata == [None] or imapdata[0] == '0':
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# Empty folder, no need to populate message list
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return
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# By default examine all UIDs in this folder
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msgsToFetch = '1:*'
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if (maxage != -1) | (maxsize != -1):
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search_cond = "(";
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if(maxage != -1):
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#find out what the oldest message is that we should look at
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oldest_struct = time.gmtime(time.time() - (60*60*24*maxage))
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if oldest_struct[0] < 1900:
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raise OfflineImapError("maxage setting led to year %d. "
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"Abort syncing." % oldest_struct[0],
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OfflineImapError.ERROR.REPO)
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search_cond += "SINCE %02d-%s-%d" % (
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oldest_struct[2],
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MonthNames[oldest_struct[1]],
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oldest_struct[0])
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if(maxsize != -1):
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if(maxage != -1): # There are two conditions, add space
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search_cond += " "
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search_cond += "SMALLER %d" % maxsize
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search_cond += ")"
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res_type, res_data = imapobj.search(None, search_cond)
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if res_type != 'OK':
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raise OfflineImapError("SEARCH in folder [%s]%s failed. "
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"Search string was '%s'. Server responded '[%s] %s'" % (
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self.getrepository(), self,
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search_cond, res_type, res_data),
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OfflineImapError.ERROR.FOLDER)
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# Result UIDs are seperated by space, coalesce into ranges
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msgsToFetch = imaputil.uid_sequence(res_data[0].split())
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if not msgsToFetch:
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return # No messages to sync
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# Get the flags and UIDs for these. single-quotes prevent
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# imaplib2 from quoting the sequence.
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res_type, response = imapobj.fetch("'%s'" % msgsToFetch,
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'(FLAGS UID)')
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if res_type != 'OK':
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raise OfflineImapError("FETCHING UIDs in folder [%s]%s failed. "
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"Server responded '[%s] %s'" % (
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self.getrepository(), self,
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res_type, response),
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OfflineImapError.ERROR.FOLDER)
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finally:
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self.imapserver.releaseconnection(imapobj)
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for messagestr in response:
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# looks like: '1 (FLAGS (\\Seen Old) UID 4807)' or None if no msg
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# Discard initial message number.
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if messagestr == None:
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continue
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messagestr = messagestr.split(' ', 1)[1]
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options = imaputil.flags2hash(messagestr)
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if not options.has_key('UID'):
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self.ui.warn('No UID in message with options %s' %\
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str(options),
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minor = 1)
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else:
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uid = long(options['UID'])
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flags = imaputil.flagsimap2maildir(options['FLAGS'])
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rtime = imaplibutil.Internaldate2epoch(messagestr)
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self.messagelist[uid] = {'uid': uid, 'flags': flags, 'time': rtime}
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def getmessagelist(self):
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return self.messagelist
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def getmessage(self, uid):
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"""Retrieve message with UID from the IMAP server (incl body)
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:returns: the message body or throws and OfflineImapError
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(probably severity MESSAGE) if e.g. no message with
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this UID could be found.
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"""
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imapobj = self.imapserver.acquireconnection()
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try:
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fails_left = 2 # retry on dropped connection
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while fails_left:
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try:
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imapobj.select(self.getfullname(), readonly = True)
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res_type, data = imapobj.uid('fetch', str(uid),
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'(BODY.PEEK[])')
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fails_left = 0
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except imapobj.abort, e:
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# Release dropped connection, and get a new one
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self.imapserver.releaseconnection(imapobj, True)
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imapobj = self.imapserver.acquireconnection()
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self.ui.error(e, exc_info()[2])
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fails_left -= 1
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if not fails_left:
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raise e
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if data == [None] or res_type != 'OK':
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#IMAP server says bad request or UID does not exist
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severity = OfflineImapError.ERROR.MESSAGE
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reason = "IMAP server '%s' failed to fetch message UID '%d'."\
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"Server responded: %s %s" % (self.getrepository(), uid,
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res_type, data)
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if data == [None]:
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#IMAP server did not find a message with this UID
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reason = "IMAP server '%s' does not have a message "\
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"with UID '%s'" % (self.getrepository(), uid)
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raise OfflineImapError(reason, severity)
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# data looks now e.g. [('320 (UID 17061 BODY[]
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# {2565}','msgbody....')] we only asked for one message,
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# and that msg is in data[0]. msbody is in [0][1]
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data = data[0][1].replace("\r\n", "\n")
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if len(data)>200:
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dbg_output = "%s...%s" % (str(data)[:150],
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str(data)[-50:])
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else:
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dbg_output = data
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self.ui.debug('imap', "Returned object from fetching %d: '%s'" %
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(uid, dbg_output))
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finally:
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self.imapserver.releaseconnection(imapobj)
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return data
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def getmessagetime(self, uid):
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return self.messagelist[uid]['time']
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def getmessageflags(self, uid):
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return self.messagelist[uid]['flags']
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def generate_randomheader(self, content):
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"""Returns a unique X-OfflineIMAP header
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Generate an 'X-OfflineIMAP' mail header which contains a random
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unique value (which is based on the mail content, and a random
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number). This header allows us to fetch a mail after APPENDing
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it to an IMAP server and thus find out the UID that the server
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assigned it.
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:returns: (headername, headervalue) tuple, consisting of strings
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headername == 'X-OfflineIMAP' and headervalue will be a
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random string
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"""
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headername = 'X-OfflineIMAP'
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# We need a random component too. If we ever upload the same
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# mail twice (e.g. in different folders), we would still need to
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# get the UID for the correct one. As we won't have too many
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# mails with identical content, the randomness requirements are
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# not extremly critial though.
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# compute unsigned crc32 of 'content' as unique hash
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# NB: crc32 returns unsigned only starting with python 3.0
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headervalue = str( binascii.crc32(content) & 0xffffffff ) + '-'
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headervalue += str(self.randomgenerator.randint(0,9999999999))
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return (headername, headervalue)
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def savemessage_addheader(self, content, headername, headervalue):
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self.ui.debug('imap',
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'savemessage_addheader: called to add %s: %s' % (headername,
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headervalue))
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insertionpoint = content.find("\r\n\r\n")
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self.ui.debug('imap', 'savemessage_addheader: insertionpoint = %d' % insertionpoint)
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leader = content[0:insertionpoint]
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self.ui.debug('imap', 'savemessage_addheader: leader = %s' % repr(leader))
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if insertionpoint == 0 or insertionpoint == -1:
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newline = ''
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insertionpoint = 0
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else:
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newline = "\r\n"
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newline += "%s: %s" % (headername, headervalue)
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self.ui.debug('imap', 'savemessage_addheader: newline = ' + repr(newline))
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trailer = content[insertionpoint:]
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self.ui.debug('imap', 'savemessage_addheader: trailer = ' + repr(trailer))
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return leader + newline + trailer
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def savemessage_searchforheader(self, imapobj, headername, headervalue):
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self.ui.debug('imap', 'savemessage_searchforheader called for %s: %s' % \
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(headername, headervalue))
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# Now find the UID it got.
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headervalue = imapobj._quote(headervalue)
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try:
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matchinguids = imapobj.uid('search', 'HEADER', headername, headervalue)[1][0]
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except imapobj.error, err:
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# IMAP server doesn't implement search or had a problem.
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self.ui.debug('imap', "savemessage_searchforheader: got IMAP error '%s' while attempting to UID SEARCH for message with header %s" % (err, headername))
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return 0
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self.ui.debug('imap', 'savemessage_searchforheader got initial matchinguids: ' + repr(matchinguids))
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if matchinguids == '':
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self.ui.debug('imap', "savemessage_searchforheader: UID SEARCH for message with header %s yielded no results" % headername)
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return 0
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matchinguids = matchinguids.split(' ')
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self.ui.debug('imap', 'savemessage_searchforheader: matchinguids now ' + \
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repr(matchinguids))
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if len(matchinguids) != 1 or matchinguids[0] == None:
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raise ValueError, "While attempting to find UID for message with header %s, got wrong-sized matchinguids of %s" % (headername, str(matchinguids))
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matchinguids.sort()
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return long(matchinguids[0])
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def savemessage_fetchheaders(self, imapobj, headername, headervalue):
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""" We fetch all new mail headers and search for the right
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X-OfflineImap line by hand. The response from the server has form:
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(
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'OK',
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[
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(
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'185 (RFC822.HEADER {1789}',
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'... mail headers ...'
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),
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' UID 2444)',
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(
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'186 (RFC822.HEADER {1789}',
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'... 2nd mail headers ...'
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),
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' UID 2445)'
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]
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)
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We need to locate the UID just after mail headers containing our
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X-OfflineIMAP line.
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Returns UID when found, 0 when not found.
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"""
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self.ui.debug('imap', 'savemessage_fetchheaders called for %s: %s' % \
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(headername, headervalue))
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# run "fetch X:* rfc822.header"
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# since we stored the mail we are looking for just recently, it would
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# not be optimal to fetch all messages. So we'll find highest message
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# UID in our local messagelist and search from there (exactly from
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# UID+1). That works because UIDs are guaranteed to be unique and
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# ascending.
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if self.getmessagelist():
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start = 1+max(self.getmessagelist().keys())
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else:
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# Folder was empty - start from 1
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start = 1
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# Imaplib quotes all parameters of a string type. That must not happen
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# with the range X:*. So we use bytearray to stop imaplib from getting
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# in our way
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result = imapobj.uid('FETCH', bytearray('%d:*' % start), 'rfc822.header')
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if result[0] != 'OK':
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raise OfflineImapError('Error fetching mail headers: ' + '. '.join(result[1]),
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OfflineImapError.ERROR.MESSAGE)
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result = result[1]
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found = 0
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for item in result:
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if found == 0 and type(item) == type( () ):
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# Walk just tuples
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if re.search("(?:^|\\r|\\n)%s:\s*%s(?:\\r|\\n)" % (headername, headervalue),
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item[1], flags=re.IGNORECASE):
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found = 1
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elif found == 1:
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if type(item) == type (""):
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uid = re.search("UID\s+(\d+)", item, flags=re.IGNORECASE)
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if uid:
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return int(uid.group(1))
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else:
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self.ui.warn("Can't parse FETCH response, can't find UID: %s", result.__repr__())
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else:
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self.ui.warn("Can't parse FETCH response, we awaited string: %s", result.__repr__())
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return 0
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def getmessageinternaldate(self, content, rtime=None):
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"""Parses mail and returns an INTERNALDATE string
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It will use information in the following order, falling back as an attempt fails:
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- rtime parameter
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- Date header of email
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We return None, if we couldn't find a valid date. In this case
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the IMAP server will use the server local time when appening
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(per RFC).
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Note, that imaplib's Time2Internaldate is inherently broken as
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it returns localized date strings which are invalid for IMAP
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servers. However, that function is called for *every* append()
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internally. So we need to either pass in `None` or the correct
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string (in which case Time2Internaldate() will do nothing) to
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append(). The output of this function is designed to work as
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input to the imapobj.append() function.
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TODO: We should probably be returning a bytearray rather than a
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string here, because the IMAP server will expect plain
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ASCII. However, imaplib.Time2INternaldate currently returns a
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string so we go with the same for now.
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:param rtime: epoch timestamp to be used rather than analyzing
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the email.
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:returns: string in the form of "DD-Mmm-YYYY HH:MM:SS +HHMM"
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(including double quotes) or `None` in case of failure
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(which is fine as value for append)."""
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if rtime is None:
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message = email.message_from_string(content)
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# parsedate returns a 9-tuple that can be passed directly to
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# time.mktime(); Will be None if missing or not in a valid
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# format. Note that indexes 6, 7, and 8 of the result tuple are
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# not usable.
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datetuple = email.utils.parsedate(message.get('Date'))
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if datetuple is None:
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#could not determine the date, use the local time.
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return None
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#make it a real struct_time, so we have named attributes
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datetuple = time.struct_time(datetuple)
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else:
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#rtime is set, use that instead
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datetuple = time.localtime(rtime)
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try:
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# Check for invalid dates
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if datetuple[0] < 1981:
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raise ValueError
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# Check for invalid dates
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datetuple_check = time.localtime(time.mktime(datetuple))
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if datetuple[:2] != datetuple_check[:2]:
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raise ValueError
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except (ValueError, OverflowError):
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# Argh, sometimes it's a valid format but year is 0102
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# or something. Argh. It seems that Time2Internaldate
|
|
# will rause a ValueError if the year is 0102 but not 1902,
|
|
# but some IMAP servers nonetheless choke on 1902.
|
|
self.ui.debug('imap', "Message with invalid date %s. Server will use local time." \
|
|
% datetuple)
|
|
return None
|
|
|
|
#produce a string representation of datetuple that works as
|
|
#INTERNALDATE
|
|
num2mon = {1:'Jan', 2:'Feb', 3:'Mar', 4:'Apr', 5:'May', 6:'Jun',
|
|
7:'Jul', 8:'Aug', 9:'Sep', 10:'Oct', 11:'Nov', 12:'Dec'}
|
|
|
|
#tm_isdst coming from email.parsedate is not usable, we still use it here, mhh
|
|
if datetuple.tm_isdst == '1':
|
|
zone = -time.altzone
|
|
else:
|
|
zone = -time.timezone
|
|
offset_h, offset_m = divmod(zone//60, 60)
|
|
|
|
internaldate = '"%02d-%s-%04d %02d:%02d:%02d %+03d%02d"' \
|
|
% (datetuple.tm_mday, num2mon[datetuple.tm_mon], datetuple.tm_year, \
|
|
datetuple.tm_hour, datetuple.tm_min, datetuple.tm_sec, offset_h, offset_m)
|
|
|
|
return internaldate
|
|
|
|
def savemessage(self, uid, content, flags, rtime):
|
|
"""Save the message on the Server
|
|
|
|
This backend always assigns a new uid, so the uid arg is ignored.
|
|
|
|
This function will update the self.messagelist dict to contain
|
|
the new message after sucessfully saving it.
|
|
|
|
:param rtime: A timestamp to be used as the mail date
|
|
:returns: the UID of the new message as assigned by the server. If the
|
|
message is saved, but it's UID can not be found, it will
|
|
return 0. If the message can't be written (folder is
|
|
read-only for example) it will return -1."""
|
|
self.ui.debug('imap', 'savemessage: called')
|
|
|
|
# already have it, just save modified flags
|
|
if uid > 0 and self.uidexists(uid):
|
|
self.savemessageflags(uid, flags)
|
|
return uid
|
|
|
|
retry_left = 2 # succeeded in APPENDING?
|
|
imapobj = self.imapserver.acquireconnection()
|
|
try:
|
|
while retry_left:
|
|
# UIDPLUS extension provides us with an APPENDUID response.
|
|
use_uidplus = 'UIDPLUS' in imapobj.capabilities
|
|
|
|
# get the date of the message, so we can pass it to the server.
|
|
date = self.getmessageinternaldate(content, rtime)
|
|
content = re.sub("(?<!\r)\n", "\r\n", content)
|
|
|
|
if not use_uidplus:
|
|
# insert a random unique header that we can fetch later
|
|
(headername, headervalue) = self.generate_randomheader(
|
|
content)
|
|
self.ui.debug('imap', 'savemessage: header is: %s: %s' %\
|
|
(headername, headervalue))
|
|
content = self.savemessage_addheader(content, headername,
|
|
headervalue)
|
|
if len(content)>200:
|
|
dbg_output = "%s...%s" % (content[:150], content[-50:])
|
|
else:
|
|
dbg_output = content
|
|
self.ui.debug('imap', "savemessage: date: %s, content: '%s'" %
|
|
(date, dbg_output))
|
|
|
|
try:
|
|
# Select folder for append and make the box READ-WRITE
|
|
imapobj.select(self.getfullname())
|
|
except imapobj.readonly:
|
|
# readonly exception. Return original uid to notify that
|
|
# we did not save the message. (see savemessage in Base.py)
|
|
self.ui.msgtoreadonly(self, uid, content, flags)
|
|
return uid
|
|
|
|
#Do the APPEND
|
|
try:
|
|
(typ, dat) = imapobj.append(self.getfullname(),
|
|
imaputil.flagsmaildir2imap(flags),
|
|
date, content)
|
|
retry_left = 0 # Mark as success
|
|
except imapobj.abort, e:
|
|
# connection has been reset, release connection and retry.
|
|
retry_left -= 1
|
|
self.imapserver.releaseconnection(imapobj, True)
|
|
imapobj = self.imapserver.acquireconnection()
|
|
if not retry_left:
|
|
raise OfflineImapError("Saving msg in folder '%s', "
|
|
"repository '%s' failed (abort). Server reponded: %s\n"
|
|
"Message content was: %s" %
|
|
(self, self.getrepository(), str(e), dbg_output),
|
|
OfflineImapError.ERROR.MESSAGE)
|
|
self.ui.error(e, exc_info()[2])
|
|
except imapobj.error, e: # APPEND failed
|
|
# If the server responds with 'BAD', append()
|
|
# raise()s directly. So we catch that too.
|
|
# drop conn, it might be bad.
|
|
self.imapserver.releaseconnection(imapobj, True)
|
|
imapobj = None
|
|
raise OfflineImapError("Saving msg folder '%s', repo '%s'"
|
|
"failed (error). Server reponded: %s\nMessage content was: "
|
|
"%s" % (self, self.getrepository(), str(e), dbg_output),
|
|
OfflineImapError.ERROR.MESSAGE)
|
|
# Checkpoint. Let it write out stuff, etc. Eg searches for
|
|
# just uploaded messages won't work if we don't do this.
|
|
(typ,dat) = imapobj.check()
|
|
assert(typ == 'OK')
|
|
|
|
# get the new UID. Test for APPENDUID response even if the
|
|
# server claims to not support it, as e.g. Gmail does :-(
|
|
if use_uidplus or imapobj._get_untagged_response('APPENDUID', True):
|
|
# get new UID from the APPENDUID response, it could look
|
|
# like OK [APPENDUID 38505 3955] APPEND completed with
|
|
# 38505 bein folder UIDvalidity and 3955 the new UID.
|
|
# note: we would want to use .response() here but that
|
|
# often seems to return [None], even though we have
|
|
# data. TODO
|
|
resp = imapobj._get_untagged_response('APPENDUID')
|
|
if resp == [None]:
|
|
self.ui.warn("Server supports UIDPLUS but got no APPENDUID "
|
|
"appending a message.")
|
|
return 0
|
|
uid = long(resp[-1].split(' ')[1])
|
|
|
|
else:
|
|
# we don't support UIDPLUS
|
|
uid = self.savemessage_searchforheader(imapobj, headername,
|
|
headervalue)
|
|
# See docs for savemessage in Base.py for explanation of this and other return values
|
|
if uid == 0:
|
|
self.ui.debug('imap', 'savemessage: first attempt to get new UID failed. \
|
|
Going to run a NOOP and try again.')
|
|
assert(imapobj.noop()[0] == 'OK')
|
|
uid = self.savemessage_searchforheader(imapobj, headername,
|
|
headervalue)
|
|
if uid == 0:
|
|
self.ui.debug('imap', 'savemessage: second attempt to get new UID failed. \
|
|
Going to try search headers manually')
|
|
uid = self.savemessage_fetchheaders(imapobj, headername, headervalue)
|
|
|
|
finally:
|
|
self.imapserver.releaseconnection(imapobj)
|
|
|
|
if uid: # avoid UID FETCH 0 crash happening later on
|
|
self.messagelist[uid] = {'uid': uid, 'flags': flags}
|
|
|
|
self.ui.debug('imap', 'savemessage: returning new UID %d' % uid)
|
|
return uid
|
|
|
|
def savemessageflags(self, uid, flags):
|
|
"""Change a message's flags to `flags`."""
|
|
imapobj = self.imapserver.acquireconnection()
|
|
try:
|
|
try:
|
|
imapobj.select(self.getfullname())
|
|
except imapobj.readonly:
|
|
self.ui.flagstoreadonly(self, [uid], flags)
|
|
return
|
|
result = imapobj.uid('store', '%d' % uid, 'FLAGS',
|
|
imaputil.flagsmaildir2imap(flags))
|
|
assert result[0] == 'OK', 'Error with store: ' + '. '.join(result[1])
|
|
finally:
|
|
self.imapserver.releaseconnection(imapobj)
|
|
result = result[1][0]
|
|
if not result:
|
|
self.messagelist[uid]['flags'] = flags
|
|
else:
|
|
flags = imaputil.flags2hash(imaputil.imapsplit(result)[1])['FLAGS']
|
|
self.messagelist[uid]['flags'] = imaputil.flagsimap2maildir(flags)
|
|
|
|
def addmessageflags(self, uid, flags):
|
|
self.addmessagesflags([uid], flags)
|
|
|
|
def addmessagesflags_noconvert(self, uidlist, flags):
|
|
self.processmessagesflags('+', uidlist, flags)
|
|
|
|
def addmessagesflags(self, uidlist, flags):
|
|
"""This is here for the sake of UIDMaps.py -- deletemessages must
|
|
add flags and get a converted UID, and if we don't have noconvert,
|
|
then UIDMaps will try to convert it twice."""
|
|
self.addmessagesflags_noconvert(uidlist, flags)
|
|
|
|
def deletemessageflags(self, uid, flags):
|
|
self.deletemessagesflags([uid], flags)
|
|
|
|
def deletemessagesflags(self, uidlist, flags):
|
|
self.processmessagesflags('-', uidlist, flags)
|
|
|
|
def processmessagesflags(self, operation, uidlist, flags):
|
|
if len(uidlist) > 101:
|
|
# Hack for those IMAP ervers with a limited line length
|
|
self.processmessagesflags(operation, uidlist[:100], flags)
|
|
self.processmessagesflags(operation, uidlist[100:], flags)
|
|
return
|
|
|
|
imapobj = self.imapserver.acquireconnection()
|
|
try:
|
|
try:
|
|
imapobj.select(self.getfullname())
|
|
except imapobj.readonly:
|
|
self.ui.flagstoreadonly(self, uidlist, flags)
|
|
return
|
|
r = imapobj.uid('store',
|
|
imaputil.uid_sequence(uidlist),
|
|
operation + 'FLAGS',
|
|
imaputil.flagsmaildir2imap(flags))
|
|
assert r[0] == 'OK', 'Error with store: ' + '. '.join(r[1])
|
|
r = r[1]
|
|
finally:
|
|
self.imapserver.releaseconnection(imapobj)
|
|
# Some IMAP servers do not always return a result. Therefore,
|
|
# only update the ones that it talks about, and manually fix
|
|
# the others.
|
|
needupdate = list(uidlist)
|
|
for result in r:
|
|
if result == None:
|
|
# Compensate for servers that don't return anything from
|
|
# STORE.
|
|
continue
|
|
attributehash = imaputil.flags2hash(imaputil.imapsplit(result)[1])
|
|
if not ('UID' in attributehash and 'FLAGS' in attributehash):
|
|
# Compensate for servers that don't return a UID attribute.
|
|
continue
|
|
flagstr = attributehash['FLAGS']
|
|
uid = long(attributehash['UID'])
|
|
self.messagelist[uid]['flags'] = imaputil.flagsimap2maildir(flagstr)
|
|
try:
|
|
needupdate.remove(uid)
|
|
except ValueError: # Let it slide if it's not in the list
|
|
pass
|
|
for uid in needupdate:
|
|
if operation == '+':
|
|
self.messagelist[uid]['flags'] |= flags
|
|
elif operation == '-':
|
|
self.messagelist[uid]['flags'] -= flags
|
|
|
|
def change_message_uid(self, uid, new_uid):
|
|
"""Change the message from existing uid to new_uid
|
|
|
|
If the backend supports it. IMAP does not and will throw errors."""
|
|
raise OfflineImapError('IMAP backend cannot change a messages UID from '
|
|
'%d to %d' % (uid, new_uid),
|
|
OfflineImapError.ERROR.MESSAGE)
|
|
|
|
def deletemessage(self, uid):
|
|
self.deletemessages_noconvert([uid])
|
|
|
|
def deletemessages(self, uidlist):
|
|
self.deletemessages_noconvert(uidlist)
|
|
|
|
def deletemessages_noconvert(self, uidlist):
|
|
# Weed out ones not in self.messagelist
|
|
uidlist = [uid for uid in uidlist if self.uidexists(uid)]
|
|
if not len(uidlist):
|
|
return
|
|
|
|
self.addmessagesflags_noconvert(uidlist, set('T'))
|
|
imapobj = self.imapserver.acquireconnection()
|
|
try:
|
|
try:
|
|
imapobj.select(self.getfullname())
|
|
except imapobj.readonly:
|
|
self.ui.deletereadonly(self, uidlist)
|
|
return
|
|
if self.expunge:
|
|
assert(imapobj.expunge()[0] == 'OK')
|
|
finally:
|
|
self.imapserver.releaseconnection(imapobj)
|
|
for uid in uidlist:
|
|
del self.messagelist[uid]
|
|
|
|
|