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gmb.py
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gmb.py
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#!/usr/bin/env python2.5
# -*- coding: utf-8 -*-
#
# Gmail Backup library
#
# Copyright © 2008, 2009, 2010 Jan Svec <[email protected]> and Filip Jurcicek <[email protected]>
#
# This file is part of Gmail Backup.
#
# Gmail Backup 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 3 of the License, or (at your option)
# any later version.
#
# Gmail Backup 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 Gmail Backup. If not, see <http://www.gnu.org/licenses/
#
# See LICENSE file for license details
import os
import sys
import imaplib
import socket
import zipfile
import email
import email.Utils
import email.Header
import email.Iterators
import email.Header
import email.Generator
import email.Errors
import sys
if sys.version_info[:2] >= (2, 5):
import email.utils
import email.header
import email.iterators
import email.header
import email.generator
import email.errors
import time
import datetime
import re
import codecs
import socket
import traceback
import shutil
import urllib
import zipfile
import string
import unicodedata
import gettext
try:
from hashlib import md5
except ImportError:
from md5 import md5
GMB_REVISION = u'$Revision$'
GMB_DATE = u'$Date$'
GMB_REVISION = GMB_REVISION[11:-2]
GMB_DATE = GMB_DATE[7:-2].split()[0]
SPEED_AVERAGE_TIME = 21 # speed average over the last x seconds
SOCKET_TIMEOUT = 60 # timeout for socket operations
MAX_LABEL_RETRIES = 5
VERSION_URL = 'http://code.google.com/p/gmail-backup-com/source/list'
SLEEP_FOR = 20 # After network error sleep for X seconds
MAX_TRY = 5 # Maximum number of reconnects
MESSAGES_DIR = os.path.join(os.path.dirname(sys.argv[0]), 'messages')
gettext.install('gmail-backup', MESSAGES_DIR, unicode=1)
def _onlyAscii(string):
if isinstance(string, unicode):
return string.encode('ascii', 'replace')
else:
return string.decode('ascii', 'replace').encode('ascii', 'replace')
def _parseMsgId(msg):
msg_id = msg['Message-Id']
if not msg_id:
from_ = msg['From']
subj = msg['Subject']
hash = md5()
hash.update(msg.as_string())
msg_id = '%s.%s.%s' % (from_, subj, hash.hexdigest())
else:
msg_id = msg_id.lstrip('<').rstrip('>')
msg_id = _onlyAscii(msg_id)
return msg_id
def _getMailInternalId(mail):
msg = email.message_from_string(mail)
return _parseMsgId(msg)
def _getMailDate(mail):
msg = email.message_from_string(mail)
return _parseMsgDate(msg)
def _getMailIMAPDate(mail):
msg = email.message_from_string(mail)
d = imaplib.Time2Internaldate(_parseMsgDate(msg))
return d
def _convertTime(t):
t = time.mktime(time.strptime(t, '%Y%m%d'))
return imaplib.Time2Internaldate(t)
def _convertTimeToNum(t):
t = time.mktime(time.strptime(t, '%Y%m%d'))
return t
def _unicodeHeader(hdr):
try:
ret = []
for item, enc in email.Header.decode_header(hdr):
try:
if enc is not None:
ret.append(item.decode(enc))
else:
ret.append(item.decode('ascii', 'replace'))
except UnicodeDecodeError, LookupError:
ret.append(item.decode('ascii', 'replace'))
return ''.join(ret)
except:
return _('<unparseable header>')
def _getMsgInitials(msg):
'''Returns from_address and subject for parsed `email` message
'''
from_address = _unicodeHeader(msg['From'])
match = re.match(r"^.*<(.*@.*\..*)>.*$", from_address)
if match:
from_address = match.group(1)
subject = _unicodeHeader(msg['Subject'])
return from_address, subject
def _getMailInitials(mail):
msg = email.message_from_string(mail)
return _getMsgInitials(msg)
def _trimDate(d):
def trim(mi, va, ma):
if va < mi:
return mi
elif va > ma:
return ma
else:
return va
(tm_year, tm_mon, tm_mday, tm_hour, tm_min, tm_sec, tm_wday, tm_yday, tm_isdst) = d
tm_year = trim(1970, tm_year, 9999)
tm_mon = trim(1, tm_mon, 12)
tm_mday = trim(1, tm_mday, 31)
tm_hour = trim(0, tm_hour, 23)
tm_min = trim(0, tm_min, 59)
tm_sec = trim(0, tm_sec, 59)
tm_yday = trim(1, tm_yday, 366)
if tm_isdst not in [-1, 0, 1]:
tm_isdst = -1
d = (tm_year, tm_mon, tm_mday, tm_hour, tm_min, tm_sec, tm_wday, tm_yday, tm_isdst)
try:
# We will try to construct the time
time.mktime(d)
except OverflowError:
# If overflow error occurs, we will fallback to 0
d = time.localtime(0)
return d
def _parseMsgDate(msg):
d = email.Utils.parsedate(msg['Date'])
if d is None:
d = time.localtime(0)
d = _trimDate(d)
return d
def _revertDict(d):
return dict((v, k) for (k, v) in d.iteritems())
def _shiftDates(min_date, max_date):
min_date = _trimDate(min_date)
max_date = _trimDate(max_date)
shift_ts = 24*60*60 # 1 hour
try:
min_t = time.localtime(time.mktime(min_date)-shift_ts)
except ValueError:
min_t = time.localtime(time.mktime(min_date))
try:
max_t = time.localtime(time.mktime(max_date)+shift_ts)
except ValueError:
max_t = time.localtime(time.mktime(max_date))
min_t = _trimDate(min_t)
max_t = _trimDate(max_t)
return min_t, max_t
def imap_decode(s):
def sub(m):
ss = m.groups(1)[0]
if not ss:
return '&'
else:
ss = ('+'+ss+'-').replace(',', '/')
return ss.decode('utf-7')
return re.sub('&(.*?)-', sub, s)
def imap_encode(s):
def sub(m):
ss = m.groups(1)[0]
if ss == '&':
return '&-'
else:
return ss.encode('utf-7').replace('+', '&').replace('/', ',')
return re.sub('([^\x20-\x25\x27-\x7e]+|&)', sub, s).encode('ascii', 'replace')
def imap_unescape(s):
ret = re.sub(r'\\([\\"])', r'\1', s)
return ret
def imap_escape(s):
ret = re.sub(r'([\\"])', r'\\\1', s)
return ret
def _removeDiacritics(string):
'''Removes any diacritics from `string`
'''
if not isinstance(string, unicode):
string = unicode(string)
string = unicodedata.normalize('NFKD', string)
output = ''
for c in string:
if not unicodedata.combining(c):
output += c
return output
class GBNotifier(object):
def nVersion(self):
pass
def nSpeed(self, amount, d):
pass
def nBackup(self, end, mailbox, directory):
pass
def nRestore(self, end, mailbox, directory):
pass
def nClear(self, end, mailbox):
pass
def nEmailBackup(self, from_address, subject, num, total):
pass
def nEmailBackupSkip(self, num, total, skipped, total_to_skip):
pass
def nEmailRestore(self, from_address, subject, num, total):
pass
def nEmailRestoreSkip(self, from_address, subject, num, total):
pass
def nLabelsBackup(self, end):
pass
def nLabelsRestore(self, num, total):
pass
def nError(self, msg):
pass
def nLog(self, msg):
pass
def nException(self, type, error, tb):
pass
def nExceptionFull(self, type, error, tb):
pass
def nExceptionMsg(self, msg, type, error, tb):
pass
def getSpeed(self):
pass
def getTotal(self):
pass
def getPercentage(self):
pass
def updateSpeed(self):
pass
class ConsoleNotifier(GBNotifier):
FATAL_ERRORS = [socket.error, imaplib.IMAP4.abort, imaplib.IMAP4.error, KeyboardInterrupt]
def __init__(self, *args, **kwargs):
super(ConsoleNotifier, self).__init__(*args, **kwargs)
self._resetCounters()
def _resetCounters(self):
self._speed = []
self._total = 0
self._percentage = None
def uprint(self, msg):
try:
print msg
except UnicodeEncodeError:
print msg.encode('ascii', 'replace')
sys.stdout.flush()
def uprint2(self, msg):
if not sys.stdout.isatty():
return
try:
print '\r%s \r' % (msg, ),
except UnicodeEncodeError:
print '\r%s \r' % (msg.encode('ascii', 'replace'), ),
sys.stdout.flush()
def nVersion(self):
self.nLog(_("GMail Backup revision %s (%s)") % (GMB_REVISION, GMB_DATE))
def nSpeed(self, amount, d):
self._total += amount
self._speed.insert(0, (amount, d))
d_sum = 0
for idx, (a, d) in enumerate(self._speed):
d_sum += d
if d_sum > SPEED_AVERAGE_TIME:
break
del self._speed[idx+1:]
self.updateSpeed()
def getSpeed(self):
a_sum = 0
d_sum = 0
for a, d in self._speed:
d_sum += d
a_sum += a
if d_sum == 0:
return 0
else:
return (a_sum/d_sum)/1024.
def getTotal(self):
return self._total/1024./1024.
def getPercentage(self):
return self._percentage
def updateSpeed(self):
self.uprint2(_("%1.fKB/s (total: %.2fMB)") % (self.getSpeed(), self.getTotal()))
def nBackup(self, end, mailbox, directory):
if not end:
self._resetCounters()
if not end:
self.uprint(_("Starting backup of account %s into %s") % (mailbox, directory))
else:
self.uprint(_("Ending backup of account %s") % (mailbox, ))
def nRestore(self, end, mailbox, directory):
if not end:
self._resetCounters()
if not end:
self.uprint(_("Restoring the content of account %s from %s") % (mailbox, directory))
else:
self.uprint(_("End of restoring of account %s") % (mailbox, ))
def nClear(self, end, mailbox):
if not end:
self.uprint(_("Clearing the content of account %s") % (mailbox, ))
else:
self.uprint(_("End of clearing of account %s") % (mailbox, ))
def nEmailBackup(self, from_address, subject, num, total):
self._percentage = float(num)/total*100
self.uprint(_("Stored %4.1f%% (%d of %d): %s - %s") % (self._percentage, num, total, from_address, subject))
def nEmailBackupSkip(self, num, total, skipped, total_to_skip):
self._percentage = float(num)/total*100
self.uprint(_("Skip %4.1f%% (%d of %d): message already stored") % (self._percentage, num, total))
def nEmailRestore(self, from_address, subject, num, total):
self._percentage = float(num)/total*100
self.uprint(_("Restored %4.1f%%: %s - %s") % (self._percentage, from_address, subject))
def nEmailRestoreSkip(self, from_address, subject, num, total):
self._percentage = float(num)/total*100
self.uprint(_("Skipdate %4.1f%%: %s - %s") % (self._percentage, from_address, subject))
def nLabelsBackup(self, end):
if not end:
self.uprint(_("Starting backup of labels"))
else:
self.uprint(_("Backup of labels ended"))
def nLabelsRestore(self, num, total):
self.uprint(_("Restoring labels, %.1f%%") % (float(num)/total*100, ))
def nError(self, msg):
self.uprint(_('Error: %s') % msg)
def nLog(self, msg):
self.uprint(unicode(msg))
def nException(self, type, error, tb):
if isinstance(error, socket.error):
#num, message = error
self.nError(_('%s\nThere are network problems, please, try it later') % (error, ))
elif isinstance(error, imaplib.IMAP4.abort):
self.nError(_("IMAP aborted the transfer"))
elif isinstance(error, imaplib.IMAP4.error):
self.nError(_("IMAP: %s") % error.message)
elif isinstance(error, KeyboardInterrupt):
self.nLog(_("Program interrupted by user"))
else:
self.nExceptionFull(type, error, tb)
def nExceptionFull(self, type, error, tb):
t = ''.join(traceback.format_exception(type, error, tb))
self.nError(_("Error occured, full traceback is bellow (gmb.py revision %s)\n%s") % (GMB_REVISION, t))
def nExceptionMsg(self, msg, type, error, tb):
t = ''.join(traceback.format_exception(type, error, tb))
self.nError(_("%s\nIgnoring this error message.\nIf you want, please report the following traceback to [email protected] \nThanks! (gmb.py revision %s):\n%s") % (msg, GMB_REVISION, t))
def handleError(self, msg):
e_type, e_value, e_tb = sys.exc_info()
for e in self.FATAL_ERRORS:
if isinstance(e_value, e):
raise
self.nExceptionMsg(msg, e_type, e_value, e_tb)
class MyIMAP4_SSL(imaplib.IMAP4_SSL):
'''Hack for bad implementation of sock._recv() under windows'''
def open(self, *args, **kwargs):
imaplib.IMAP4_SSL.open(self, *args, **kwargs)
self.sock.settimeout(SOCKET_TIMEOUT)
self._t1 = time.time()
def setNotifier(self, notifier):
self.notifier = notifier
def _nSpeed(self, t1, t2, amount):
if hasattr(self, 'notifier'):
d = t2 - t1
self.notifier.nSpeed(amount, d)
def read(self, size):
step = 1024 * 32
ret = []
while size > 0:
part = imaplib.IMAP4_SSL.read(self, min(size, step))
t2 = time.time()
ret.append(part)
self._nSpeed(self._t1, t2, len(part))
self._t1 = t2
size -= step
return ''.join(ret)
def send(self, data):
step = 1024 * 32
idx = 0
while idx < len(data):
part = data[idx:idx+step]
imaplib.IMAP4_SSL.send(self, part)
t2 = time.time()
self._nSpeed(self._t1, t2, len(part))
self._t1 = t2
idx += step
class GMailConnection(object):
ALL_MAILS = None
TRASH = None
OK = 'OK'
MAILBOX_NAMES = {
'en_us': ('[Gmail]/All Mail', '[Gmail]/Trash'),
'en_uk': ('[Gmail]/All Mail', '[Gmail]/Bin'),
'cs': ('[Gmail]/V&AWE-echny zpr&AOE-vy', '[Gmail]/Ko&AWE-'),
'es': ('[Gmail]/Todos', '[Gmail]/Papelera'),
'de': ('[Gmail]/Alle Nachrichten', '[Gmail]/Papierkorb'),
'fr': ('[Gmail]/Tous les messages', '[Gmail]/Corbeille'),
'ar': ('[Gmail]/&BkMGRA- &BicGRAYoBjEGSgYv-', '[Gmail]/&BkUGRwZABkUGRAYnBio-'),
'it': ('[Gmail]/Tutti i messaggi', '[Gmail]/Cestino'),
'pl': ('[Gmail]/Wszystkie', '[Gmail]/Kosz'),
'sk': ('[Gmail]/V&AWE-etky spr&AOE-vy', '[Gmail]/K&APQBYQ-'),
'bahasa_indonesia': ('[Gmail]/Semua Email', '[Gmail]/Tong Sampah'),
'bahasa_melayu': ('[Gmail]/Semua Mel', '[Gmail]/Sampah'),
'catala': ('[Gmail]/Tots els missatges', '[Gmail]/Paperera'),
'dansk': ('[Gmail]/Alle e-mails', '[Gmail]/Papirkurv'),
'eesti_keel': ('[Gmail]/K&APU-ik kirjad', '[Gmail]/Pr&APw-gikast'),
'filipino': ('[Gmail]/Lahat ng Mail', '[Gmail]/Basurahan'),
'hrvatski': ('[Gmail]/Sva po&AWE-ta', '[Gmail]/Otpad'),
'islenska': ('[Gmail]/Allur p&APM-stur', '[Gmail]/Rusl'),
'latviesu': ('[Gmail]/Visas v&ARM-stules', '[Gmail]/Miskaste'),
'lietuviu': ('[Gmail]/Visi lai&AWE-kai', '[Gmail]/&AWA-iuk&AWE-liad&ARcBfgEX-'),
'magyar': ('[Gmail]/&ANY-sszes lev&AOk-l', '[Gmail]/Kuka'),
'norsk': ('[Gmail]/All e-post', '[Gmail]/Papirkurv'),
'nederlands': ('[Gmail]/Alle berichten', '[Gmail]/Prullenbak'),
'portugues_brazil': ('[Gmail]/Todos os e-mails', '[Gmail]/Lixeira'),
'portugues_portugal': ('[Gmail]/Todo o correio', '[Gmail]/Lixo'),
'romana': ('[Gmail]/Toate mesajele', '[Gmail]/Co&AV8- de gunoi'),
'slovenscina': ('[Gmail]/Vsa po&AWE-ta', '[Gmail]/Smetnjak'),
'suomi': ('[Gmail]/Kaikki viestit', '[Gmail]/Roskakori'),
'svenska': ('[Gmail]/Alla mail', '[Gmail]/Papperskorgen'),
'tieng_viet': ('[Gmail]/T&AOIDAQ-t ca&Awk- Th&AbA-', '[Gmail]/Thu&AwA-ng Ra&AwE-c'),
'turkce': ('[Gmail]/T&APw-m Postalar', '[Gmail]/&AMcA9g-p Kutusu'),
'ellnvika': ('[Gmail]/&A4wDuwOx- &A8QDsQ- &A7wDtwO9A80DvAOxA8QDsQ-', '[Gmail]/&A5oDrAO0A78Dwg- &A7EDwAO,A8EDwQO5A7wDvAOsA8QDyQO9-'),
'azbuka1': ('[Gmail]/&BBIEQQRP- &BD8EPgRHBEIEMA-', '[Gmail]/&BBoEPgRABDcEOAQ9BDA-'),
'azbuka2': ('[Gmail]/&BCEEMgQw- &BD8EPgRIBEIEMA-', '[Gmail]/&BB4EQgQ,BDAENA-'),
'azbuka3': ('[Gmail]/&BCMEQQRP- &BD8EPgRIBEIEMA-', '[Gmail]/&BBoEPgRIBDgEOg-'),
'azbuka4': ('[Gmail]/&BCYETwQ7BDAEQgQw- &BD8EPgRJBDA-', '[Gmail]/&BBoEPgRIBEcENQ-'),
'hebrew': ('[Gmail]/&BdsF3A- &BdQF0wXVBdAF6A-', '[Gmail]/&BdAF6QXkBdQ-'),
'arabic': ('[Gmail]/&BkMGRA- &BicGRAYoBjEGSgYv-', '[Gmail]/&BkUGRwZABkUGRAYnBio-'),
'caj1': ('[Gmail]/&CTgJLQlA- &CS4JRwky-', '[Gmail]/&CR8JTQkwCUgJNg- &CRUJMAlHCQI-'),
'caj2': ('[Gmail]/&DggOFA4rDiEOMg4iDhcOMQ5JDgcOKw4hDhQ-', '[Gmail]/&DhYOMQ4HDgIOIg4w-'),
'caj3': ('[Gmail]/&UWiQ6JD1TvY-', '[Gmail]/&V4NXPmh2-'),
'caj4': ('[Gmail]/&YkBnCZCuTvY-', '[Gmail]/&XfJSIJZkkK5O9g-'),
'caj5': ('[Gmail]/&MFkweTBmMG4w4TD8MOs-', '[Gmail]/&MLQw33ux-'),
'caj6': ('[Gmail]/&yATMtLz0rQDVaA-', '[Gmail]/&1zTJwNG1-'),
# The same with Google Mail instead of Gmail
'en_us_GM': ('[Google Mail]/All Mail', '[Google Mail]/Trash'),
'en_uk_GM': ('[Google Mail]/All Mail', '[Google Mail]/Bin'),
'cs_GM': ('[Google Mail]/V&AWE-echny zpr&AOE-vy', '[Google Mail]/Ko&AWE-'),
'es_GM': ('[Google Mail]/Todos', '[Google Mail]/Papelera'),
'de_GM': ('[Google Mail]/Alle Nachrichten', '[Google Mail]/Papierkorb'),
'fr_GM': ('[Google Mail]/Tous les messages', '[Google Mail]/Corbeille'),
'ar_GM': ('[Google Mail]/&BkMGRA- &BicGRAYoBjEGSgYv-', '[Google Mail]/&BkUGRwZABkUGRAYnBio-'),
'it_GM': ('[Google Mail]/Tutti i messaggi', '[Google Mail]/Cestino'),
'pl_GM': ('[Google Mail]/Wszystkie', '[Google Mail]/Kosz'),
'sk_GM': ('[Google Mail]/V&AWE-etky spr&AOE-vy', '[Google Mail]/K&APQBYQ-'),
'bahasa_indonesia_GM': ('[Google Mail]/Semua Email', '[Google Mail]/Tong Sampah'),
'bahasa_melayu_GM': ('[Google Mail]/Semua Mel', '[Google Mail]/Sampah'),
'catala_GM': ('[Google Mail]/Tots els missatges', '[Google Mail]/Paperera'),
'dansk_GM': ('[Google Mail]/Alle e-mails', '[Google Mail]/Papirkurv'),
'eesti_keel_GM': ('[Google Mail]/K&APU-ik kirjad', '[Google Mail]/Pr&APw-gikast'),
'filipino_GM': ('[Google Mail]/Lahat ng Mail', '[Google Mail]/Basurahan'),
'hrvatski_GM': ('[Google Mail]/Sva po&AWE-ta', '[Google Mail]/Otpad'),
'islenska_GM': ('[Google Mail]/Allur p&APM-stur', '[Google Mail]/Rusl'),
'latviesu_GM': ('[Google Mail]/Visas v&ARM-stules', '[Google Mail]/Miskaste'),
'lietuviu_GM': ('[Google Mail]/Visi lai&AWE-kai', '[Google Mail]/&AWA-iuk&AWE-liad&ARcBfgEX-'),
'magyar_GM': ('[Google Mail]/&ANY-sszes lev&AOk-l', '[Google Mail]/Kuka'),
'norsk_GM': ('[Google Mail]/All e-post', '[Google Mail]/Papirkurv'),
'nederlands_GM': ('[Google Mail]/Alle berichten', '[Google Mail]/Prullenbak'),
'portugues_brazil_GM': ('[Google Mail]/Todos os e-mails', '[Google Mail]/Lixeira'),
'portugues_portugal_GM': ('[Google Mail]/Todo o correio', '[Google Mail]/Lixo'),
'romana_GM': ('[Google Mail]/Toate mesajele', '[Google Mail]/Co&AV8- de gunoi'),
'slovenscina_GM': ('[Google Mail]/Vsa po&AWE-ta', '[Google Mail]/Smetnjak'),
'suomi_GM': ('[Google Mail]/Kaikki viestit', '[Google Mail]/Roskakori'),
'svenska_GM': ('[Google Mail]/Alla mail', '[Google Mail]/Papperskorgen'),
'tieng_viet_GM': ('[Google Mail]/T&AOIDAQ-t ca&Awk- Th&AbA-', '[Google Mail]/Thu&AwA-ng Ra&AwE-c'),
'turkce_GM': ('[Google Mail]/T&APw-m Postalar', '[Google Mail]/&AMcA9g-p Kutusu'),
'ellnvika_GM': ('[Google Mail]/&A4wDuwOx- &A8QDsQ- &A7wDtwO9A80DvAOxA8QDsQ-', '[Google Mail]/&A5oDrAO0A78Dwg- &A7EDwAO,A8EDwQO5A7wDvAOsA8QDyQO9-'),
'azbuka1_GM': ('[Google Mail]/&BBIEQQRP- &BD8EPgRHBEIEMA-', '[Google Mail]/&BBoEPgRABDcEOAQ9BDA-'),
'azbuka2_GM': ('[Google Mail]/&BCEEMgQw- &BD8EPgRIBEIEMA-', '[Google Mail]/&BB4EQgQ,BDAENA-'),
'azbuka3_GM': ('[Google Mail]/&BCMEQQRP- &BD8EPgRIBEIEMA-', '[Google Mail]/&BBoEPgRIBDgEOg-'),
'azbuka4_GM': ('[Google Mail]/&BCYETwQ7BDAEQgQw- &BD8EPgRJBDA-', '[Google Mail]/&BBoEPgRIBEcENQ-'),
'hebrew_GM': ('[Google Mail]/&BdsF3A- &BdQF0wXVBdAF6A-', '[Google Mail]/&BdAF6QXkBdQ-'),
'arabic_GM': ('[Google Mail]/&BkMGRA- &BicGRAYoBjEGSgYv-', '[Google Mail]/&BkUGRwZABkUGRAYnBio-'),
'caj1_GM': ('[Google Mail]/&CTgJLQlA- &CS4JRwky-', '[Google Mail]/&CR8JTQkwCUgJNg- &CRUJMAlHCQI-'),
'caj2_GM': ('[Google Mail]/&DggOFA4rDiEOMg4iDhcOMQ5JDgcOKw4hDhQ-', '[Google Mail]/&DhYOMQ4HDgIOIg4w-'),
'caj3_GM': ('[Google Mail]/&UWiQ6JD1TvY-', '[Google Mail]/&V4NXPmh2-'),
'caj4_GM': ('[Google Mail]/&YkBnCZCuTvY-', '[Google Mail]/&XfJSIJZkkK5O9g-'),
'caj5_GM': ('[Google Mail]/&MFkweTBmMG4w4TD8MOs-', '[Google Mail]/&MLQw33ux-'),
'caj6_GM': ('[Google Mail]/&yATMtLz0rQDVaA-', '[Google Mail]/&1zTJwNG1-'),
}
def __init__(self, username, password, notifier, lang=None):
self.username = username
self.password = password
self.notifier = notifier
self.lang = None
if lang is not None:
self.setLanguage(lang)
self._lastMailbox = None
self._lastSearch = None
self._lastFetched = None
self._lastFetchedMsg = None
self._wasLogged = False
def recoverableError(self, e):
if isinstance(e, (socket.error, imaplib.IMAP4_SSL.abort, socket.timeout)):
return True
elif isinstance(e, imaplib.IMAP4_SSL.error):
str_e = str(e)
if self._wasLogged and 'Invalid credentials' in str_e:
return True
return False
def guessLanguage(self):
present = set()
status, ret = self.con.list()
for i in ret:
match = re.match(r'^\(.*\)\s".*"\s"(\[.*\].*)"\s*$', i)
if not match:
continue
box = match.group(1)
present.add(box)
for key, (all_mail, trash) in self.MAILBOX_NAMES.iteritems():
if all_mail in present and trash in present:
return key
for key, (all_mail, trash) in self.MAILBOX_NAMES.iteritems():
if all_mail in present:
self.notifier.nLog("Guessing language with internal code '%s', in case of problems contact us at [email protected]" % key)
return key
self.notifier.nError(\
'''Your Gmail account doesn't export some IMAP needed to Gmail Backup work.
Possible causes are:
- You are using the Gmail Labs.
Please go to the Settings/Label page and enable the IMAP access into
All Mails and Trash folders.
- You are using unsupported language of Gmail. Please run the following
command:
gmail-backup.exe list <[email protected]> <your_password>
and send the output of this command to our user support group:
Thank you''')
raise ValueError("Cannot access IMAP folders")
def setLanguage(self, lang):
self.lang = lang
self.ALL_MAILS = self.MAILBOX_NAMES[lang][0]
self.TRASH = self.MAILBOX_NAMES[lang][1]
def connect(self, noguess=False):
self.con = MyIMAP4_SSL('imap.gmail.com', 993)
self.con.setNotifier(self.notifier)
self.con.login(self.username, self.password)
self._wasLogged = True
if self.lang is None and not noguess:
lang = self.guessLanguage()
self.setLanguage(lang)
def close(self):
self.con.shutdown()
del self.con
def select(self, mailbox):
self._lastMailbox = mailbox
self._call(self.con.select, mailbox)
def reconnect(self):
TRY = 1
sleep = SLEEP_FOR
while TRY <= MAX_TRY:
self.notifier.nLog(_("Trying to reconnect (%d)") % TRY)
try:
self.connect()
if self._lastMailbox:
self.select(self._lastMailbox)
if self._lastSearch:
self.search(self._lastSearch)
self.notifier.nLog(_("Reconnected!"))
return True
except:
e = sys.exc_info()[1]
if self.recoverableError(e):
self.notifier.nLog(_("Not connected, sleeping for %d seconds") % SLEEP_FOR)
time.sleep(sleep)
sleep *= 2
TRY += 1
else:
raise e
self.notifier.nLog(_("Unable to reconnect"))
return False
def fetchMessageId(self, num):
typ, data = self._call(self.con.fetch, num, '(BODY.PEEK[HEADER.FIELDS (Message-ID)])')
if data is None or data[0] is None:
match = None
else:
match = re.match(r'^.*:\s*<(.*)>$', data[0][1].strip())
if match:
# The message has Message-ID stored in it
imsg_id = match.group(1)
imsg_id = _onlyAscii(imsg_id)
return imsg_id
else:
# We compute our synthetic Message-ID from the whole message
mail = self.fetchMessage(num)
msg = email.message_from_string(mail)
imsg_id = _parseMsgId(msg)
return imsg_id
def fetchMessage(self, num):
if self._lastFetched == num:
return self._lastFetchedMsg
else:
typ, data = self._call(self.con.fetch, num, '(BODY.PEEK[])')
mail = data[0][1]
self._lastFetched = num
self._lastFetchedMsg = mail
return mail
def search(self, where):
self._lastSearch = where
typ, numbers = self._call(self.con.search, None, *where)
numbers = numbers[0].split()
return numbers
def lsub(self):
status, ret = self._call(self.con.lsub)
ret = [imap_unescape(i) for i in ret]
return ret
def list(self):
status, ret = self._call(self.con.list)
ret = [imap_unescape(i) for i in ret]
return ret
def create(self, label):
self._call(self.con.create, label)
def copy(self, message_set, label):
self._call(self.con.copy, message_set, label)
def append(self, mailbox, flags, msg_date, msg):
self._call(self.con.append, mailbox, flags, msg_date, msg)
def store(self, nums, state, flags):
self._call(self.con.store, nums, state, flags)
def expunge(self):
self._call(self.con.expunge)
def delete(self, mailbox):
self._call(self.con.delete, mailbox)
def _call(self, method, *args, **kwargs):
# Dirty hack:
method_name = method.im_func.__name__
while True:
try:
method = getattr(self.con, method_name)
ret = method(*args, **kwargs)
return ret
except:
e = sys.exc_info()[1]
if self.recoverableError(e):
self.notifier.nLog(_("Network error occured, disconnected"))
if not self.reconnect():
raise e
else:
raise e
class EmailStorage(object):
@classmethod
def createStorage(cls, fn, notifier):
ext = os.path.splitext(fn.split('#')[0])[1]
if ext.lower() == '.zip':
return ZipStorage(fn, notifier)
else:
return DirectoryStorage(fn, notifier)
def idsOfMessages(self):
'''Returns the set of stored msg_ids'''
def iterBackups(self, since_time=None, before_time=None, logging=True):
'''Iterates over backups specified by parameters and yields pairs (storageid, message)'''
def store(self, msg):
'''Stores message `msg`'''
def getLabelAssignment(self):
'''Returns label assignment'''
def updateLabelAssignment(self, assignment):
'''Updates label assignment with `assignment`'''
def lastStamp(self):
'''Return the stamp of the last backup, the output is in the format of _convertTime()'''
def updateStamp(self, last_time):
'''Updates the stamp of the last backup to last_time'''
def _templateDict(self, msg):
'''Creates dictionary used in the template expansion
'''
d = _parseMsgDate(msg)
ret = {}
ret['YEAR'] = time.strftime('%Y', d)
ret['MONTH'] = time.strftime('%m', d)
ret['DAY'] = time.strftime('%d', d)
ret['HOUR'] = time.strftime('%H', d)
ret['MINUTE'] = time.strftime('%M', d)
ret['SECOND'] = time.strftime('%S', d)
ret['FROM'], ret['SUBJ'] = _getMsgInitials(msg)
ret['FROM'] = ret['FROM'].lower()
ret = dict((k, v.replace('/', '_')) for (k, v) in ret.iteritems())
return ret
class DirectoryStorage(EmailStorage):
def __init__(self, fn, notifier):
self.setFnAndFragment(fn)
self.notifier = notifier
self._makeMaildir()
self._readDownloadedIds()
self._readLabelAssignment()
def setFnAndFragment(self, fn):
'''Sets the filename and the pattern for naming the files in the
storage
'''
items = fn.split("#", 1)
if len(items) == 1:
self.fn = items[0]
self.fragment = '${YEAR}/${MONTH}/${YEAR}${MONTH}${DAY}-${HOUR}${MINUTE}${SECOND}-${FROM}-${SUBJ}'
else:
self.fn = items[0]
self.fragment = items[1]
self.fn = os.path.expanduser(self.fn)
self.fragment = string.Template(self.fragment)
def iterBackups(self, since_time=None, before_time=None, logging=True):
def walkBackups(top):
'''Walks trough the dn and returns path originating in dn and ending with '.eml'
'''
for dn, sub_dns, fns in os.walk(top):
rel_dn = dn[len(top):].lstrip(os.path.sep)
for fn in fns:
if os.path.splitext(fn)[1].lower() != '.eml':
continue
yield os.path.join(rel_dn, fn)
listing = sorted(walkBackups(self.fn))
for idx, msg_fn in enumerate(listing):
try:
full_msg_fn = os.path.join(self.fn, msg_fn)
fr = file(full_msg_fn, 'rb')
try:
msg = fr.read()
finally:
fr.close()
msg_date2 = _getMailDate(msg)
msg_date2_num = time.mktime(msg_date2)
if (since_time is None or since_time < msg_date2_num) \
and (before_time is None or msg_date2_num < before_time):
yield msg_fn, msg
if logging:
from_address, subject = _getMailInitials(msg)
self.notifier.nEmailRestore(from_address, subject, idx+1, len(listing))
else:
if logging:
from_address, subject = _getMailInitials(msg)
self.notifier.nEmailRestoreSkip(from_address, subject, idx+1, len(listing))
except:
if isinstance(sys.exc_info()[1], GeneratorExit):
break
self.notifier.handleError(_("Error occured while reading e-mail from disc"))
def _makeMaildir(self):
dirs = [self.fn, os.path.join(self.fn, 'cur'), os.path.join(self.fn, 'new'), os.path.join(self.fn, 'tmp')]
try:
for i in dirs:
os.makedirs(i)
except OSError:
pass
def idsFilename(self):
return os.path.join(self.fn, 'ids.txt')
def labelFilename(self):
return os.path.join(self.fn, 'labels.txt')
def stampFile(self):
return os.path.join(self.fn, 'stamp')
def _readDownloadedIds(self):
cache = self.idsFilename()
self.message_iid2fn = {}
if not os.path.isfile(cache):
for msg_fn, msg in self.iterBackups(logging=False):
try:
msg_iid = _getMailInternalId(msg)
self.message_iid2fn[msg_iid] = msg_fn
except:
self.notifier.handleError(_("Error while reading MessageID from stored message"))
else:
fr = file(cache, 'r')
for line in fr:
try:
items = line.strip().split(None, 1)
try:
msg_fn = items[0]
msg_iid = items[1]
self.message_iid2fn[msg_iid] = msg_fn
except IndexError:
pass
except:
self.notifier.handleError(_("Bad line in file with cached MessageIDs"))
fr.close()
self.message_fn2iid = _revertDict(self.message_iid2fn)
def _writeDownloadedIds(self):
fn = self.idsFilename()
if os.path.exists(fn):
os.remove(fn)
fw = file(fn, 'w')
for msg_iid, msg_fn in sorted(self.message_iid2fn.items(), key=lambda item: item[1]):
try:
line = '%s\t%s' % (msg_fn, msg_iid)
print >> fw, line
except:
self.notifier.nError(_("Errorneous message in file: %s, please report it to <[email protected]>") % msg_fn)
fw.close()
def idsOfMessages(self):
return set(self.message_iid2fn)
def getLabelAssignment(self):
return self.message_iid2labels.copy()
def updateLabelAssignment(self, assignment):
self.message_iid2labels.update(assignment)
self._writeLabelAssignment()
def _cleanFilename(self, fn):
'''Cleans the filename - removes diacritics and other filesystem special characters
'''
fn = _removeDiacritics(fn)
fn = fn.encode('utf-8', 'replace')
if os.name == 'posix':
good_chars = set('!"#\'()+-0123456789:;<=>@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]_abcdefghijklmnopqrstuvwxyz{}/\\')
elif os.name == 'nt':
good_chars = set("!#'()+-0123456789;=@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]_abcdefghijklmnopqrstuvwxyz{}/\\")
else:
good_chars = set("+-0123456789=@ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz/\\")
ret = ''
for c in fn:
if c not in good_chars:
c = '_'
ret += c
ret = re.sub('_+', '_', ret)
ret = ret[:240]
return ret
def getMailFilename(self, mail):
msg = email.message_from_string(mail)
values = self._templateDict(msg)
fn = self.fragment.safe_substitute(values)
fn = self._cleanFilename(fn)
return fn
def store(self, msg):
msg_fn = self.getMailFilename(msg)
msg_dn = os.path.dirname(msg_fn)
full_dn = os.path.join(self.fn, msg_dn)
if not os.path.isdir(full_dn):
os.makedirs(full_dn)
msg_iid = _getMailInternalId(msg)
idx = 1
while True:
msg_fn_num = '%s-%01d.eml'%(msg_fn, idx)
idx += 1
full_fn_num = os.path.join(self.fn, msg_fn_num)
if not os.path.exists(full_fn_num):
break
self.message_iid2fn[msg_iid] = msg_fn_num
self.message_fn2iid[msg_fn_num] = msg_iid
fw = file(full_fn_num, 'wb')
try:
fw.write(msg)
finally:
fw.close()
def storeComplete(self):
self._writeDownloadedIds()
def _backupLabelAssignment(self):
assign_fn = self.labelFilename()
assign_fn_old = self.labelFilename()+'.bak'
if os.path.exists(assign_fn):
if os.path.exists(assign_fn_old):
os.remove(assign_fn_old)
shutil.copy(assign_fn, assign_fn_old)