docker-offlineimap/head/offlineimap/folder/IMAP.py

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# IMAP folder support
# Copyright (C) 2002 John Goerzen
# <jgoerzen@complete.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from Base import BaseFolder
from offlineimap import imaputil, imaplib
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import rfc822
from StringIO import StringIO
from copy import copy
class IMAPFolder(BaseFolder):
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def __init__(self, imapserver, name, visiblename, accountname):
self.name = imaputil.dequote(name)
self.root = imapserver.root
self.sep = imapserver.delim
self.imapserver = imapserver
self.messagelist = None
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self.visiblename = visiblename
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self.accountname = accountname
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def suggeststhreads(self):
return 1
def waitforthread(self):
self.imapserver.connectionwait()
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def getcopyinstancelimit(self):
return 'MSGCOPY_' + self.accountname
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def getvisiblename(self):
return self.visiblename
def getuidvalidity(self):
imapobj = self.imapserver.acquireconnection()
try:
# Primes untagged_responses
imapobj.select(self.getfullname(), readonly = 1)
return long(imapobj.untagged_responses['UIDVALIDITY'][0])
finally:
self.imapserver.releaseconnection(imapobj)
def cachemessagelist(self):
imapobj = self.imapserver.acquireconnection()
self.messagelist = {}
try:
# Primes untagged_responses
imapobj.select(self.getfullname(), readonly = 1)
maxmsgid = long(imapobj.untagged_responses['EXISTS'][0])
if maxmsgid < 1:
# No messages; return
return
# Now, get the flags and UIDs for these.
# We could conceivably get rid of maxmsgid and just say
# '1:*' here.
response = imapobj.fetch('1:%d' % maxmsgid, '(FLAGS UID)')[1]
finally:
self.imapserver.releaseconnection(imapobj)
for messagestr in response:
# Discard the message number.
messagestr = imaputil.imapsplit(messagestr)[1]
options = imaputil.flags2hash(messagestr)
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uid = long(options['UID'])
flags = imaputil.flagsimap2maildir(options['FLAGS'])
self.messagelist[uid] = {'uid': uid, 'flags': flags}
def getmessagelist(self):
return self.messagelist
def getmessage(self, uid):
imapobj = self.imapserver.acquireconnection()
try:
imapobj.select(self.getfullname(), readonly = 1)
return imapobj.uid('fetch', '%d' % uid, '(BODY.PEEK[])')[1][0][1].replace("\r\n", "\n")
finally:
self.imapserver.releaseconnection(imapobj)
def getmessageflags(self, uid):
return self.messagelist[uid]['flags']
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def savemessage(self, uid, content, flags):
imapobj = self.imapserver.acquireconnection()
try:
imapobj.select(self.getfullname()) # Needed for search
# This backend always assigns a new uid, so the uid arg is ignored.
# In order to get the new uid, we need to save off the message ID.
message = rfc822.Message(StringIO(content))
mid = imapobj._quote(message.getheader('Message-Id'))
date = imaplib.Time2Internaldate(rfc822.parsedate(message.getheader('Date')))
if content.find("\r\n") == -1: # Convert line endings if not already
content = content.replace("\n", "\r\n")
assert(imapobj.append(self.getfullname(),
imaputil.flagsmaildir2imap(flags),
date, content)[0] == 'OK')
# Checkpoint. Let it write out the messages, etc.
assert(imapobj.check()[0] == 'OK')
# Now find the UID it got.
matchinguids = imapobj.uid('search', None,
'(HEADER Message-Id %s)' % mid)[1][0]
matchinguids = matchinguids.split(' ')
matchinguids.sort()
uid = long(matchinguids[-1])
self.messagelist[uid] = {'uid': uid, 'flags': flags}
return uid
finally:
self.imapserver.releaseconnection(imapobj)
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def savemessageflags(self, uid, flags):
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imapobj = self.imapserver.acquireconnection()
try:
imapobj.select(self.getfullname())
result = imapobj.uid('store', '%d' % uid, 'FLAGS',
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imaputil.flagsmaildir2imap(flags))
assert result[0] == 'OK', 'Error with store: ' + r[1]
finally:
self.imapserver.releaseconnection(imapobj)
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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)
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def addmessagesflags(self, uidlist, flags):
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imapobj = self.imapserver.acquireconnection()
try:
imapobj.select(self.getfullname())
r = imapobj.uid('store',
imaputil.listjoin(uidlist),
'+FLAGS',
imaputil.flagsmaildir2imap(flags))
assert r[0] == 'OK', 'Error with store: ' + 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 = copy(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
flags = attributehash['FLAGS']
uid = long(attributehash['UID'])
self.messagelist[uid]['flags'] = imaputil.flagsimap2maildir(flags)
try:
needupdate.remove(uid)
except ValueError: # Let it slide if it's not in the list
pass
for uid in needupdate:
for flag in flags:
if not flag in self.messagelist[uid]['flags']:
self.messagelist[uid]['flags'].append(flag)
self.messagelist[uid]['flags'].sort()
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def deletemessage(self, uid):
self.deletemessages([uid])
def deletemessages(self, uidlist):
# Weed out ones not in self.messagelist
uidlist = [uid for uid in uidlist if uid in self.messagelist]
if not len(uidlist):
return
self.addmessagesflags(uidlist, ['T'])
imapobj = self.imapserver.acquireconnection()
try:
imapobj.select(self.getfullname())
assert(imapobj.expunge()[0] == 'OK')
finally:
self.imapserver.releaseconnection(imapobj)
for uid in uidlist:
del self.messagelist[uid]
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