/
mailfv.py
executable file
·249 lines (208 loc) · 9.31 KB
/
mailfv.py
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#!/usr/bin/env python26
import imaplib2, email, os, sys, logging, threading, signal, chardet, icu
import email.parser
import email.header
import Daemonize
import logging.handlers
from ConfigParser import SafeConfigParser
from optparse import OptionParser
class stdErrWriter(object):
def __init__(self, logger, logLevel):
self.logLevel = logLevel
self.logger = logger
def write(self, buf):
self.logger.log(self.logLevel, buf)
class mailFVAT(threading.Thread):
lockEvent = threading.Event()
killNow = False
M = None
config = SafeConfigParser()
resetTimeout = False
filters = []
def __init__(self):
threading.Thread.__init__(self)
# setup logger
self.logger = logging.getLogger('mailFVAT')
self.logger.setLevel(logging.DEBUG)
handler = logging.handlers.RotatingFileHandler('/tmp/mailfv.log', maxBytes=1048576, backupCount=10)
handler.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)
self.logger.addHandler(handler)
# create logger for errors
errLogger = logging.getLogger('stdErr')
errLogger.setLevel(logging.ERROR)
errHandler = logging.handlers.RotatingFileHandler('/tmp/mailfv_error.log', maxBytes=1048576, backupCount=10)
errHandler.setLevel(logging.ERROR)
errFormatter = logging.Formatter('%(asctime)s - %(message)s')
errHandler.setFormatter(errFormatter)
errLogger.addHandler(errHandler)
# redirect stderr
sys.stderr = stdErrWriter(errLogger, logging.ERROR)
self.M = imaplib2.IMAP4_SSL('imap.gmail.com')
def run(self):
self.logger.info('Running')
self.login(self.config.get('mail', 'username'), self.config.get('mail', 'password'))
self.gotoFolder('Inbox')
existingUIDs = self.search('ALL')
fetchUIDs = self.filterMessages(existingUIDs)
self.fetchFVAT(fetchUIDs)
while not self.killNow:
newUIDs = self.idle(existingUIDs)
existingUIDs = newUIDs
self.logout()
def resetIDLE(self):
self.logger.info('Resetting connection after 1h waiting')
self.resetTimeout = True
self.M.noop()
def idle(self, knownUIDs):
self.logger.debug('Starting IDLE command')
self.resetTimeout = False
self.lockEvent.clear()
self.callbackSuccess = False
def imapIDLECallback((data, cb_arg, error)):
self.logger.info('Server state changed')
self.callbackSuccess = data[1][0] == 'IDLE terminated (Success)'
self.lockEvent.set()
self.M.idle(timeout=60*30, callback=imapIDLECallback)
self.logger.info('Waiting for IDLE server reply')
reset = threading.Timer(3600, self.resetIDLE)
reset.start()
self.lockEvent.wait()
reset.cancel()
if not self.killNow:
if not self.callbackSuccess:
self.logger.error('Server error during IDLE request')
if not self.isTimeout():
newUIDs = self.search('ALL')
unknownUIDs = [uid for uid in newUIDs if uid not in knownUIDs]
uidOfInterest = self.filterMessages(unknownUIDs)
self.fetchFVAT(uidOfInterest)
return newUIDs
else:
self.logger.info('IDLE request timeout occured')
return knownUIDs
def isTimeout(self):
if not self.resetTimeout:
isTimeout = self.M.response('IDLE')
return isTimeout[1][0] == 'TIMEOUT'
return True
def exit(self):
self.logger.info('Exitting')
self.killNow = True
self.lockEvent.set()
def configure(self, configFile):
self.logger.debug('Reading config file from {0}'.format(configFile))
configs = self.config.read(configFile)
self.prepareFilters()
self.createDirectoryIfNotExistent(self.config.get('mail', 'directory'))
def prepareFilters(self):
def createFilterFunction(criteria):
return lambda values: reduce(lambda x, y: x and y[1].find(filter(lambda crit: crit[0] == y[0], criteria)[0][1]) >= 0, values, True)
providers = self.config.sections()
providers.remove('mail')
for provider in providers:
criteria = [('From', self.config.get(provider, 'mail')), ('Subject', self.config.get(provider, 'title'))]
self.logger.info('Configured filter for {0} with preferences {1}'.format(provider, criteria))
self.filters.append((provider, createFilterFunction(criteria)))
def filterMessages(self, uids):
self.logger.debug('Currently there are {0:d} messages {1}'.format(len(uids), uids))
uidOfInterest = []
for uid in uids:
filterValues = self.extractHeaderTuples(uid)
for provider, filterFunction in self.filters:
if filterFunction(filterValues):
uidOfInterest.append((provider, uid))
self.logger.info('Found {0:d} messages for download {1}'.format(len(uidOfInterest), uidOfInterest))
return uidOfInterest
def extractHeaderTuples(self, uid):
self.logger.info('Getting header information for {0:d}'.format(uid))
parser = email.parser.HeaderParser()
rc, data = self.M.uid('FETCH', uid, '(BODY.PEEK[HEADER.FIELDS (FROM SUBJECT)] UID)')
headers = parser.parsestr(data[0][1])
filterValues = []
for header, value in headers.items():
decodedElements = email.header.decode_header(value)
decodedValueList = []
for element, charset in decodedElements:
if charset == None:
decodedValueList.append(element)
else:
decodedValueList.append(element.decode(charset).encode('utf-8'))
filterValues.append((header, ' '.join(decodedValueList)))
self.logger.debug('Extracted headers for uid {0:d} - {1}'.format(uid, filterValues))
return filterValues
def login(self, username, password):
rc, response = self.M.login(username, password)
self.logger.info('Logged in {0} to imap.google.com'.format(username))
return rc, response
def gotoFolder(self, folder='Inbox'):
rc, count = self.M.select(folder)
self.logger.info('Changed folder to {0}'.format(folder))
return rc, count
def fetchFVAT(self, uids):
for provider, uid in uids:
self.getAttachments(uid, self.config.get(provider, 'folder'))
self.addLabels(uid, self.config.get(provider, 'label'))
def addLabels(self, uid, label):
rc, data = self.M.uid('STORE', uid, '+X-GM-LABELS', label)
self.logger.info('Added label {0} for uid {1:d}'.format(label, uid))
def convert(self, data, outputCoding='utf-8'):
coding = icu.CharsetDetector(data).detect().getName()
print coding
if outputCoding.upper() != coding.upper():
data = unicode(data, coding, "replace").encode(outputCoding)
return data
def getAttachments(self, uid, folder):
directory = os.path.join(self.config.get('mail', 'directory'), folder)
self.logger.info('Fetching attachments for {0:d} to {1}'.format(uid, directory))
self.createDirectoryIfNotExistent(directory)
rc, data = self.M.uid('FETCH', uid, '(RFC822)')
msg = email.message_from_string(data[0][1])
for part in msg.walk():
if part.has_key("Content-Disposition") and part.get("Content-Disposition").find("attachment") >= 0:
filename = part.get_filename()
attachment = part.get_payload(decode=True)
attachment_file = open(os.path.join(directory, filename), 'w')
attachment_file.write(self.convert(attachment, 'utf-8'))
attachment_file.close()
self.M.uid('STORE', uid, '+FLAGS', '\SEEN')
def search(self, criteria='ALL'):
rc, uids = self.M.uid('SEARCH', None, '({0})'.format(criteria))
uidList = uids[0].split()
if rc != 'OK':
raise Error, 'massive error'
try:
return [int(uid) for uid in uidList]
except ValueError:
raise Error, "received unparsable response."
def createDirectoryIfNotExistent(self, directory):
if not os.path.exists(directory):
self.logger.info('Creating directory {0}'.format(directory))
os.makedirs(directory)
def logout(self):
self.logger.debug('Closing connection to imap.google.com')
self.M.close()
self.M.logout()
if __name__ == '__main__':
parser = OptionParser()
parser.add_option("-c", "--config", default='/root/.mailfv', dest="filename", help="location of config file", metavar="CONFIG")
options, args = parser.parse_args()
retCode = 0
waitDaemon = threading.Event()
waitDaemon.clear()
retCode = Daemonize.createDaemon(022, '/', 1024, waitDaemon)
waitDaemon.wait()
def handler(signum, frame):
gmail.exit()
gmail.join()
sys.exit(retCode)
signal.signal(signal.SIGINT, handler)
signal.signal(signal.SIGTERM, handler)
gmail = mailFVAT()
gmail.configure(options.filename)
gmail.start()
signal.pause()
else:
print 'This file is not meant for inclusion'
sys.exit(1)