300 lines
11 KiB
Python
300 lines
11 KiB
Python
#!/usr/bin/python2.2
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# Copyright (C) 2002 John Goerzen
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# <jgoerzen@complete.org>
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from offlineimap import imaplib, imaputil, imapserver, repository, folder, mbnames, threadutil, version
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from offlineimap.threadutil import InstanceLimitedThread, ExitNotifyThread
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import re, os, os.path, offlineimap, sys
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from ConfigParser import ConfigParser
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from threading import *
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from getopt import getopt
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options = {}
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if '--help' in sys.argv[1:]:
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sys.stdout.write(version.cmdhelp + "\n")
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sys.exit(0)
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for optlist in getopt(sys.argv[1:], '1oa:c:du:h')[0]:
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options[optlist[0]] = optlist[1]
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if '-d' in options:
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imaplib.Debug = 5
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if '-h' in options:
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sys.stdout.write(version.cmdhelp)
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sys.stdout.write("\n")
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sys.exit(0)
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configfilename = os.path.expanduser("~/.offlineimaprc")
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if '-c' in options:
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configfilename = options['-c']
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config = ConfigParser()
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if not os.path.exists(configfilename):
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sys.stderr.write(" *** Config file %s does not exist; aborting!\n" % configfilename)
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sys.exit(1)
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config.read(configfilename)
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if '-u' in options:
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ui = offlineimap.ui.detector.getUImod(options['-u'])()
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else:
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ui = offlineimap.ui.detector.findUI(config)
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ui.init_banner()
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if '-o' in options and config.has_option("general", "autorefresh"):
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config.remove_option("general", "autorefresh")
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metadatadir = os.path.expanduser(config.get("general", "metadata"))
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if not os.path.exists(metadatadir):
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os.mkdir(metadatadir, 0700)
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accounts = config.get("general", "accounts")
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if '-a' in options:
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accounts = options['-a']
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accounts = accounts.replace(" ", "")
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accounts = accounts.split(",")
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server = None
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remoterepos = None
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localrepos = None
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passwords = {}
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tunnels = {}
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if '-1' in options:
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threadutil.initInstanceLimit("ACCOUNTLIMIT", 1)
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else:
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threadutil.initInstanceLimit("ACCOUNTLIMIT",
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config.getint("general", "maxsyncaccounts"))
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# We have to gather passwords here -- don't want to have two threads
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# asking for passwords simultaneously.
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for account in accounts:
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if config.has_option(account, "preauthtunnel"):
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tunnels[account] = config.get(account, "preauthtunnel")
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elif config.has_option(account, "remotepass"):
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passwords[account] = config.get(account, "remotepass")
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elif config.has_option(account, "remotepassfile"):
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passfile = open(os.path.expanduser(config.get(account, "remotepassfile")))
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passwords[account] = passfile.readline().strip()
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passfile.close()
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else:
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passwords[account] = ui.getpass(account, config)
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for instancename in ["FOLDER_" + account, "MSGCOPY_" + account]:
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if '-1' in options:
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threadutil.initInstanceLimit(instancename, 1)
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else:
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threadutil.initInstanceLimit(instancename,
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config.getint(account, "maxconnections"))
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mailboxes = []
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servers = {}
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def syncaccount(accountname, *args):
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# We don't need an account lock because syncitall() goes through
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# each account once, then waits for all to finish.
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try:
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ui.acct(accountname)
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accountmetadata = os.path.join(metadatadir, accountname)
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if not os.path.exists(accountmetadata):
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os.mkdir(accountmetadata, 0700)
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server = None
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if accountname in servers:
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server = servers[accountname]
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else:
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server = imapserver.ConfigedIMAPServer(config, accountname, passwords)
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servers[accountname] = server
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remoterepos = repository.IMAP.IMAPRepository(config, accountname, server)
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# Connect to the Maildirs.
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localrepos = repository.Maildir.MaildirRepository(os.path.expanduser(config.get(accountname, "localfolders")))
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# Connect to the local cache.
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statusrepos = repository.LocalStatus.LocalStatusRepository(accountmetadata)
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ui.syncfolders(remoterepos, localrepos)
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remoterepos.syncfoldersto(localrepos)
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folderthreads = []
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for remotefolder in remoterepos.getfolders():
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thread = InstanceLimitedThread(\
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instancename = 'FOLDER_' + accountname,
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target = syncfolder,
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name = "Folder sync %s[%s]" % \
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(accountname, remotefolder.getvisiblename()),
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args = (accountname, remoterepos, remotefolder, localrepos,
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statusrepos))
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thread.setDaemon(1)
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thread.start()
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folderthreads.append(thread)
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threadutil.threadsreset(folderthreads)
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if not (config.has_option(accountname, 'holdconnectionopen') and \
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config.getboolean(accountname, 'holdconnectionopen')):
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server.close()
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finally:
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pass
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def syncfolder(accountname, remoterepos, remotefolder, localrepos,
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statusrepos):
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# Load local folder.
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localfolder = localrepos.\
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getfolder(remotefolder.getvisiblename().\
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replace(remoterepos.getsep(), localrepos.getsep()))
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# Write the mailboxes
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mailboxes.append({'accountname': accountname,
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'foldername': localfolder.getvisiblename()})
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# Load local folder
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ui.syncingfolder(remoterepos, remotefolder, localrepos, localfolder)
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ui.loadmessagelist(localrepos, localfolder)
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localfolder.cachemessagelist()
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ui.messagelistloaded(localrepos, localfolder, len(localfolder.getmessagelist().keys()))
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# Load status folder.
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statusfolder = statusrepos.getfolder(remotefolder.getvisiblename().\
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replace(remoterepos.getsep(),
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statusrepos.getsep()))
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statusfolder.cachemessagelist()
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# If either the local or the status folder has messages and
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# there is a UID validity problem, warn and abort.
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# If there are no messages, UW IMAPd loses UIDVALIDITY.
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# But we don't really need it if both local folders are empty.
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# So, in that case, save it off.
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if (len(localfolder.getmessagelist()) or \
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len(statusfolder.getmessagelist())) and \
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not localfolder.isuidvalidityok(remotefolder):
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ui.validityproblem(remotefolder)
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return
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else:
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localfolder.saveuidvalidity(remotefolder.getuidvalidity())
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# Load remote folder.
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ui.loadmessagelist(remoterepos, remotefolder)
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remotefolder.cachemessagelist()
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ui.messagelistloaded(remoterepos, remotefolder,
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len(remotefolder.getmessagelist().keys()))
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#
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if not statusfolder.isnewfolder():
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# Delete local copies of remote messages. This way,
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# if a message's flag is modified locally but it has been
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# deleted remotely, we'll delete it locally. Otherwise, we
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# try to modify a deleted message's flags! This step
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# need only be taken if a statusfolder is present; otherwise,
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# there is no action taken *to* the remote repository.
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remotefolder.syncmessagesto_delete(localfolder, [localfolder,
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statusfolder])
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ui.syncingmessages(localrepos, localfolder, remoterepos, remotefolder)
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localfolder.syncmessagesto(statusfolder, [remotefolder, statusfolder])
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# Synchronize remote changes.
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ui.syncingmessages(remoterepos, remotefolder, localrepos, localfolder)
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remotefolder.syncmessagesto(localfolder)
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# Make sure the status folder is up-to-date.
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ui.syncingmessages(localrepos, localfolder, statusrepos, statusfolder)
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localfolder.syncmessagesto(statusfolder)
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statusfolder.save()
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def syncitall():
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global mailboxes
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mailboxes = [] # Reset.
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threads = []
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for accountname in accounts:
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thread = InstanceLimitedThread(instancename = 'ACCOUNTLIMIT',
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target = syncaccount,
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name = "Account sync %s" % accountname,
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args = (accountname,))
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thread.setDaemon(1)
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thread.start()
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threads.append(thread)
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# Wait for the threads to finish.
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threadutil.threadsreset(threads)
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mbnames.genmbnames(config, mailboxes)
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def sync_with_timer():
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currentThread().setExitMessage('SYNC_WITH_TIMER_TERMINATE')
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syncitall()
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if config.has_option('general', 'autorefresh'):
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refreshperiod = config.getint('general', 'autorefresh') * 60
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while 1:
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# Set up keep-alives.
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kaevents = {}
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kathreads = {}
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for accountname in accounts:
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if config.has_option(accountname, 'holdconnectionopen') and \
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config.getboolean(accountname, 'holdconnectionopen') and \
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config.has_option(accountname, 'keepalive'):
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event = Event()
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kaevents[accountname] = event
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thread = ExitNotifyThread(target = servers[accountname].keepalive,
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name = "Keep alive " + accountname,
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args = (config.getint(accountname, 'keepalive'), event))
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thread.setDaemon(1)
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thread.start()
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kathreads[accountname] = thread
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if ui.sleep(refreshperiod) == 2:
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# Cancel keep-alives, but don't bother terminating threads
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for event in kaevents.values():
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event.set()
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break
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else:
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# Cancel keep-alives and wait for threads to terminate.
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for event in kaevents.values():
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event.set()
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for thread in kathreads.values():
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thread.join()
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syncitall()
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def threadexited(thread):
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if thread.getExitCause() == 'EXCEPTION':
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if isinstance(thread.getExitException(), SystemExit):
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# Bring a SystemExit into the main thread.
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# Do not send it back to UI layer right now.
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# Maybe later send it to ui.terminate?
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raise SystemExit
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ui.threadException(thread) # Expected to terminate
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sys.exit(100) # Just in case...
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os._exit(100)
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elif thread.getExitMessage() == 'SYNC_WITH_TIMER_TERMINATE':
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ui.terminate()
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# Just in case...
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sys.exit(100)
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os._exit(100)
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else:
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ui.threadExited(thread)
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threadutil.initexitnotify()
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t = ExitNotifyThread(target=sync_with_timer,
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name='Sync Runner')
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t.setDaemon(1)
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t.start()
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try:
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threadutil.exitnotifymonitorloop(threadexited)
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except SystemExit:
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raise
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except:
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ui.mainException() # Also expected to terminate.
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