code.delx.au - offlineimap/blob - offlineimap/init.py

   1 # OfflineIMAP initialization code
   2 # Copyright (C) 2002-2007 John Goerzen
   3 # <jgoerzen@complete.org>
   4 #
   5 #    This program is free software; you can redistribute it and/or modify
   6 #    it under the terms of the GNU General Public License as published by
   7 #    the Free Software Foundation; either version 2 of the License, or
   8 #    (at your option) any later version.
   9 #
  10 #    This program is distributed in the hope that it will be useful,
  11 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 #    GNU General Public License for more details.
  14 #
  15 #    You should have received a copy of the GNU General Public License
  16 #    along with this program; if not, write to the Free Software
  17 #    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  18
  19 import imaplib
  20 from offlineimap import imapserver, repository, folder, mbnames, threadutil, version, syncmaster, accounts
  21 from offlineimap.localeval import LocalEval
  22 from offlineimap.threadutil import InstanceLimitedThread, ExitNotifyThread
  23 from offlineimap.ui import UIBase
  24 import re, os, os.path, offlineimap, sys
  25 from offlineimap.CustomConfig import CustomConfigParser
  26 from threading import *
  27 import threading, socket
  28 from getopt import getopt
  29
  30 try:
  31     import fcntl
  32     hasfcntl = 1
  33 except:
  34     hasfcntl = 0
  35
  36 lockfd = None
  37
  38 def lock(config, ui):
  39     global lockfd, hasfcntl
  40     if not hasfcntl:
  41         return
  42     lockfd = open(config.getmetadatadir() + "/lock", "w")
  43     try:
  44         fcntl.flock(lockfd, fcntl.LOCK_EX | fcntl.LOCK_NB)
  45     except IOError:
  46         ui.locked()
  47         ui.terminate(1)
  48
  49 def startup(versionno):
  50     assert versionno == version.versionstr, "Revision of main program (%s) does not match that of library (%s).  Please double-check your PYTHONPATH and installation locations." % (versionno, version.versionstr)
  51     options = {}
  52     if '--help' in sys.argv[1:]:
  53         sys.stdout.write(version.getcmdhelp() + "\n")
  54         sys.exit(0)
  55
  56     for optlist in getopt(sys.argv[1:], 'P:1oa:c:d:l:u:h')[0]:
  57         options[optlist[0]] = optlist[1]
  58
  59     if options.has_key('-h'):
  60         sys.stdout.write(version.getcmdhelp())
  61         sys.stdout.write("\n")
  62         sys.exit(0)
  63     configfilename = os.path.expanduser("~/.offlineimaprc")
  64     if options.has_key('-c'):
  65         configfilename = options['-c']
  66     if options.has_key('-P'):
  67         if not options.has_key('-1'):
  68             sys.stderr.write("FATAL: profile mode REQUIRES -1\n")
  69             sys.exit(100)
  70         profiledir = options['-P']
  71         os.mkdir(profiledir)
  72         threadutil.setprofiledir(profiledir)
  73         sys.stderr.write("WARNING: profile mode engaged;\nPotentially large data will be created in " + profiledir + "\n")
  74
  75     config = CustomConfigParser()
  76     if not os.path.exists(configfilename):
  77         sys.stderr.write(" *** Config file %s does not exist; aborting!\n" % configfilename)
  78         sys.exit(1)
  79
  80     config.read(configfilename)
  81
  82     ui = offlineimap.ui.detector.findUI(config, options.get('-u'))
  83     UIBase.setglobalui(ui)
  84
  85     if options.has_key('-l'):
  86         ui.setlogfd(open(options['-l'], 'wt'))
  87
  88     ui.init_banner()
  89
  90     if options.has_key('-d'):
  91         for debugtype in options['-d'].split(','):
  92             ui.add_debug(debugtype.strip())
  93             if debugtype == 'imap':
  94                 imaplib.Debug = 5
  95             if debugtype == 'thread':
  96                 threading._VERBOSE = 1
  97
  98     if options.has_key('-o'):
  99         # FIXME: maybe need a better
 100         for section in accounts.getaccountlist(config):
 101             config.remove_option('Account ' + section, "autorefresh")
 102
 103     lock(config, ui)
 104
 105     try:
 106         pidfd = open(config.getmetadatadir() + "/pid", "w")
 107         pidfd.write(os.getpid())
 108         pidfd.close()
 109     except:
 110         pass
 111
 112     try:
 113         if options.has_key('-l'):
 114             sys.stderr = ui.logfile
 115
 116         socktimeout = config.getdefaultint("general", "socktimeout", 0)
 117         if socktimeout > 0:
 118             socket.setdefaulttimeout(socktimeout)
 119
 120         activeaccounts = config.get("general", "accounts")
 121         if options.has_key('-a'):
 122             activeaccounts = options['-a']
 123         activeaccounts = activeaccounts.replace(" ", "")
 124         activeaccounts = activeaccounts.split(",")
 125         allaccounts = accounts.AccountHashGenerator(config)
 126
 127         syncaccounts = {}
 128         for account in activeaccounts:
 129             if account not in allaccounts:
 130                 if len(allaccounts) == 0:
 131                     errormsg = 'The account "%s" does not exist because no accounts are defined!'%account
 132                 else:
 133                     errormsg = 'The account "%s" does not exist.  Valid accounts are:'%account
 134                     for name in allaccounts.keys():
 135                         errormsg += '\n%s'%name
 136                 ui.terminate(1, errortitle = 'Unknown Account "%s"'%account, errormsg = errormsg)
 137             syncaccounts[account] = allaccounts[account]
 138
 139         server = None
 140         remoterepos = None
 141         localrepos = None
 142
 143         if options.has_key('-1'):
 144             threadutil.initInstanceLimit("ACCOUNTLIMIT", 1)
 145         else:
 146             threadutil.initInstanceLimit("ACCOUNTLIMIT",
 147                                          config.getdefaultint("general", "maxsyncaccounts", 1))
 148
 149         for reposname in config.getsectionlist('Repository'):
 150             for instancename in ["FOLDER_" + reposname,
 151                                  "MSGCOPY_" + reposname]:
 152                 if options.has_key('-1'):
 153                     threadutil.initInstanceLimit(instancename, 1)
 154                 else:
 155                     threadutil.initInstanceLimit(instancename,
 156                                                  config.getdefaultint('Repository ' + reposname, "maxconnections", 1))
 157
 158         threadutil.initexitnotify()
 159         t = ExitNotifyThread(target=syncmaster.syncitall,
 160                              name='Sync Runner',
 161                              kwargs = {'accounts': syncaccounts,
 162                                        'config': config})
 163         t.setDaemon(1)
 164         t.start()
 165     except:
 166         ui.mainException()
 167
 168     try:
 169         threadutil.exitnotifymonitorloop(threadutil.threadexited)
 170     except SystemExit:
 171         raise
 172     except:
 173         ui.mainException()                  # Also expected to terminate.
 174
 175