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docker-offlineimap/offlineimap/repository/IMAP.py
Sebastian Spaeth 9c5f73d3b3 Move self.folderfilter|nametrans|sort from IMAPFolder to BaseFolder 
We want to have these functions available for Maildir folders too, so we
can folderfilter a Maildir repository too (which is currently not possible)

This commit only move the corresponding functions from the IMAP to the Base
implementation. It should not change behavior in any way yet.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-19 14:23:08 +02:00

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# IMAP repository 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
from offlineimap.repository.Base import BaseRepository
from offlineimap import folder, imaputil, imapserver, OfflineImapError
from offlineimap.folder.UIDMaps import MappedIMAPFolder
from offlineimap.threadutil import ExitNotifyThread
from threading import Event
import types
import os
from sys import exc_info
import netrc
import errno
class IMAPRepository(BaseRepository):
def __init__(self, reposname, account):
"""Initialize an IMAPRepository object."""
BaseRepository.__init__(self, reposname, account)
# self.ui is being set by the BaseRepository
self._host = None
self.imapserver = imapserver.IMAPServer(self)
self.folders = None
def startkeepalive(self):
keepalivetime = self.getkeepalive()
if not keepalivetime: return
self.kaevent = Event()
self.kathread = ExitNotifyThread(target = self.imapserver.keepalive,
name = "Keep alive " + self.getname(),
args = (keepalivetime, self.kaevent))
self.kathread.setDaemon(1)
self.kathread.start()
def stopkeepalive(self):
if not hasattr(self, 'kaevent'):
# Keepalive is not active.
return
self.kaevent.set()
del self.kathread
del self.kaevent
def holdordropconnections(self):
if not self.getholdconnectionopen():
self.dropconnections()
def dropconnections(self):
self.imapserver.close()
def getholdconnectionopen(self):
if self.getidlefolders():
return 1
return self.getconfboolean("holdconnectionopen", 0)
def getkeepalive(self):
num = self.getconfint("keepalive", 0)
if num == 0 and self.getidlefolders():
return 29*60
else:
return num
def getsep(self):
return self.imapserver.delim
def gethost(self):
"""Return the configured hostname to connect to
:returns: hostname as string or throws Exception"""
if self._host: # use cached value if possible
return self._host
# 1) check for remotehosteval setting
if self.config.has_option(self.getsection(), 'remotehosteval'):
host = self.getconf('remotehosteval')
try:
host = self.localeval.eval(host)
except Exception, e:
raise OfflineImapError("remotehosteval option for repository "\
"'%s' failed:\n%s" % (self, e),
OfflineImapError.ERROR.REPO)
if host:
self._host = host
return self._host
# 2) check for plain remotehost setting
host = self.getconf('remotehost', None)
if host != None:
self._host = host
return self._host
# no success
raise OfflineImapError("No remote host for repository "\
"'%s' specified." % self,
OfflineImapError.ERROR.REPO)
def getuser(self):
user = None
localeval = self.localeval
if self.config.has_option(self.getsection(), 'remoteusereval'):
user = self.getconf('remoteusereval')
if user != None:
return localeval.eval(user)
user = self.getconf('remoteuser')
if user != None:
return user
try:
netrcentry = netrc.netrc().authenticators(self.gethost())
except IOError, inst:
if inst.errno != errno.ENOENT:
raise
else:
if netrcentry:
return netrcentry[0]
try:
netrcentry = netrc.netrc('/etc/netrc').authenticators(self.gethost())
except IOError, inst:
if inst.errno != errno.ENOENT:
raise
else:
if netrcentry:
return netrcentry[0]
def getport(self):
return self.getconfint('remoteport', None)
def getssl(self):
return self.getconfboolean('ssl', 0)
def getsslclientcert(self):
return self.getconf('sslclientcert', None)
def getsslclientkey(self):
return self.getconf('sslclientkey', None)
def getsslcacertfile(self):
"""Return the absolute path of the CA certfile to use, if any"""
cacertfile = self.getconf('sslcacertfile', None)
if cacertfile is None:
return None
cacertfile = os.path.expanduser(cacertfile)
cacertfile = os.path.abspath(cacertfile)
if not os.path.isfile(cacertfile):
raise SyntaxWarning("CA certfile for repository '%s' could "
"not be found. No such file: '%s'" \
% (self.name, cacertfile))
return cacertfile
def get_ssl_fingerprint(self):
return self.getconf('cert_fingerprint', None)
def getpreauthtunnel(self):
return self.getconf('preauthtunnel', None)
def getreference(self):
return self.getconf('reference', '""')
def getidlefolders(self):
localeval = self.localeval
return localeval.eval(self.getconf('idlefolders', '[]'))
def getmaxconnections(self):
num1 = len(self.getidlefolders())
num2 = self.getconfint('maxconnections', 1)
return max(num1, num2)
def getexpunge(self):
return self.getconfboolean('expunge', 1)
def getpassword(self):
"""Return the IMAP password for this repository.
It tries to get passwords in the following order:
1. evaluate Repository 'remotepasseval'
2. read password from Repository 'remotepass'
3. read password from file specified in Repository 'remotepassfile'
4. read password from ~/.netrc
5. read password from /etc/netrc
On success we return the password.
If all strategies fail we return None.
"""
# 1. evaluate Repository 'remotepasseval'
passwd = self.getconf('remotepasseval', None)
if passwd != None:
return self.localeval.eval(passwd)
# 2. read password from Repository 'remotepass'
password = self.getconf('remotepass', None)
if password != None:
return password
# 3. read password from file specified in Repository 'remotepassfile'
passfile = self.getconf('remotepassfile', None)
if passfile != None:
fd = open(os.path.expanduser(passfile))
password = fd.readline().strip()
fd.close()
return password
# 4. read password from ~/.netrc
try:
netrcentry = netrc.netrc().authenticators(self.gethost())
except IOError, inst:
if inst.errno != errno.ENOENT:
raise
else:
if netrcentry:
user = self.getconf('remoteuser')
if user == None or user == netrcentry[0]:
return netrcentry[2]
# 5. read password from /etc/netrc
try:
netrcentry = netrc.netrc('/etc/netrc').authenticators(self.gethost())
except IOError, inst:
if inst.errno != errno.ENOENT:
raise
else:
if netrcentry:
user = self.getconf('remoteuser')
if user == None or user == netrcentry[0]:
return netrcentry[2]
# no strategy yielded a password!
return None
def getfolder(self, foldername):
return self.getfoldertype()(self.imapserver, foldername, self)
def getfoldertype(self):
return folder.IMAP.IMAPFolder
def connect(self):
imapobj = self.imapserver.acquireconnection()
self.imapserver.releaseconnection(imapobj)
def forgetfolders(self):
self.folders = None
def getfolders(self):
if self.folders != None:
return self.folders
retval = []
imapobj = self.imapserver.acquireconnection()
# check whether to list all folders, or subscribed only
listfunction = imapobj.list
if self.getconfboolean('subscribedonly', False):
listfunction = imapobj.lsub
try:
listresult = listfunction(directory = self.imapserver.reference)[1]
finally:
self.imapserver.releaseconnection(imapobj)
for string in listresult:
if string == None or \
(type(string) == types.StringType and string == ''):
# Bug in imaplib: empty strings in results from
# literals.
continue
flags, delim, name = imaputil.imapsplit(string)
flaglist = [x.lower() for x in imaputil.flagsplit(flags)]
if '\\noselect' in flaglist:
continue
foldername = imaputil.dequote(name)
retval.append(self.getfoldertype()(self.imapserver, foldername,
self))
# filter out the folder?
if not self.folderfilter(foldername):
self.ui.debug('imap', "Filtering out '%s'[%s] due to folderfilt"
"er" % (foldername, self))
retval[-1].sync_this = False
# Add all folderincludes
if len(self.folderincludes):
imapobj = self.imapserver.acquireconnection()
try:
for foldername in self.folderincludes:
try:
imapobj.select(foldername, readonly = 1)
except OfflineImapError, e:
# couldn't select this folderinclude, so ignore folder.
if e.severity > OfflineImapError.ERROR.FOLDER:
raise
self.ui.error(e, exc_info()[2],
'Invalid folderinclude:')
continue
retval.append(self.getfoldertype()(self.imapserver,
foldername,
self))
finally:
self.imapserver.releaseconnection(imapobj)
retval.sort(lambda x, y: self.foldersort(x.getvisiblename(), y.getvisiblename()))
self.folders = retval
return self.folders
def makefolder(self, foldername):
"""Create a folder on the IMAP server
:param foldername: Full path of the folder to be created."""
#TODO: IMHO this existing commented out code is correct and
#should be enabled, but this would change the behavior for
#existing configurations who have a 'reference' set on a Mapped
#IMAP server....:
#if self.getreference() != '""':
# newname = self.getreference() + self.getsep() + foldername
#else:
# newname = foldername
imapobj = self.imapserver.acquireconnection()
try:
self.ui._msg("Creating new IMAP folder '%s' on server %s" %\
(foldername, self))
result = imapobj.create(foldername)
if result[0] != 'OK':
raise OfflineImapError("Folder '%s'[%s] could not be created. "
"Server responded: %s" % \
(foldername, self, str(result)),
OfflineImapError.ERROR.FOLDER)
finally:
self.imapserver.releaseconnection(imapobj)
class MappedIMAPRepository(IMAPRepository):
def getfoldertype(self):
return MappedIMAPFolder
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