def delayed_delete_message(msg_id=None, process_id=None,
retries=0):
process = CleanUserProcess.get_by_id(process_id)
criteria = process.search_criteria
msg_process = CleanMessageProcess.query(ndb.AND(
CleanMessageProcess.msg_id == msg_id,
CleanMessageProcess.clean_process_id == process_id)
).get()
if msg_process.status != constants.MIGRATED:
if retries < constants.MAX_RETRIES:
deferred.defer(delayed_delete_message, msg_id=msg_id,
process_id=process_id, retries=retries+1,
_countdown=60*2**retries, _queue="elimination")
else:
logging.error("Couldn't delete msg %s for user %s" %
(msg_id, process.source_email))
return
imap = IMAPHelper()
imap.login(process.source_email, process.source_password)
imap.select()
# Look for the migrated email, if it doesn't exist yet
# retry later
try:
subject = imap.get_subject(msg_id=msg_id)
except Exception as e:
if retries < constants.MAX_RETRIES:
deferred.defer(delayed_delete_message, msg_id=msg_id,
process_id=process_id, retries=retries+1,
_countdown=60*2**retries)
else:
logging.error("Couldn't delete msg %s for user %s, error %s" %
(msg_id, process.source_email, e.message))
return
messages = imap.list_messages(criteria="subject:(%s) label:Migrated-Migrados" % subject)
if len(messages) < 1:
if retries < constants.MAX_RETRIES:
deferred.defer(delayed_delete_message, msg_id=msg_id,
process_id=process_id, retries=retries+1,
_countdown=60*2**retries, _queue="elimination")
else:
logging.error("Couldn't delete msg %s for user %s" %
(msg_id, process.source_email))
return
imap.delete_message(msg_id=msg_id, criteria=criteria)
imap.close()
msg_process.status = constants.FINISHED
msg_process.put()
all_done = True
all_cleaning_messages = CleanMessageProcess.query(
CleanMessageProcess.clean_process_id == process_id
).fetch()
progress = 0
for message in all_cleaning_messages:
if not message.status == constants.FINISHED:
all_done = False
else:
progress += 1
if all_done:
process.status = constants.FINISHED
utc_now = datetime.datetime.utcnow()
local_tz = pytz.timezone('America/Bogota')
tz_offset = local_tz.utcoffset(utc_now)
now = utc_now + tz_offset
process.progress = progress
process.latest_activity = "%s" % now
process.put()
def clean_message(msg_id='', imap=None, drive=None,
migration=None, folder_id=None,
user_email=None, process_id=None):
logging.info("Trying to clean message %s for user %s" % (msg_id, user_email))
process = CleanUserProcess.get_by_id(process_id)
criteria = process.search_criteria
msg_process = CleanMessageProcess.get_or_create(msg_id, process_id)
if msg_process.status == constants.FINISHED:
return True
result, message = imap.get_message(msg_id=msg_id)
if result != 'OK':
raise Exception("Couldn't read message")
result, label_data = imap.get_message_labels(msg_id=msg_id)
labels = []
if label_data and label_data[0]:
labels = (((label_data[0].split('('))[2].split(')'))[0]).split()
mail = email.message_from_string(message[0][1])
attachments = []
number_of_attachments = 0
if mail.get_content_maintype() == 'multipart':
for part in mail.walk():
if part.get_content_maintype() == 'multipart':
continue
if part.get('Content-Disposition') is None:
continue
# Is attachment
attached = False
number_of_attachments += 1
attachment_process = CleanAttachmentProcess.get_or_create(
msg_id, msg_process.key.id(), number_of_attachments
)
file_id = ''
if (attachment_process.status == constants.FINISHED and
attachment_process.url and
attachment_process.filename and
attachment_process.file_id
):
attached = True
attachments.append(
(attachment_process.url, attachment_process.filename))
file_id = attachment_process.file_id
if not attached:
attachment = part.get_payload(decode=True)
mime_type = part.get_content_type()
filename = part.get_filename()
text, encoding = email.Header.decode_header(filename)[0]
if encoding:
filename = text.decode(encoding)
insert_result = drive.insert_file(filename=filename,
mime_type=mime_type,
content=attachment,
parent_id=folder_id)
if not insert_result:
attachment_process.error_description = (
"Error inserting file"
)
attachment_process.put()
raise Exception("Insert file error")
drive_url = insert_result['webContentLink']
file_id = insert_result['id']
attachment_process.url = drive_url
attachment_process.file_id = file_id
attachment_process.status = constants.FINISHED
attachment_process.filename = filename
attachment_process.put()
attachments.append((drive_url, filename))
permission_result = drive.insert_permission(file_id=file_id,
value=user_email,
type='user', role='writer')
if not permission_result:
attachment_process.error_description = (
"Permission error"
)
attachment_process.put()
raise Exception("Permission error")
part.set_payload("")
for header in part.keys():
part.__delitem__(header)
msg_process.status = constants.DUPLICATED
msg_process.put()
for url, filename in attachments:
body_suffix = '<a href="%s">%s</a>' % (url, filename)
new_payload = email.MIMEText.MIMEText(body_suffix.encode('utf-8'), 'html', 'utf-8')
mail.attach(new_payload)
# Send new mail
time.sleep(1.2)
migration_result = migration.migrate_mail(user_email=user_email, msg=mail,
labels=labels)
if not migration_result:
msg_process.error_description = "Migration error"
msg_process.put()
raise Exception("Migration error")
else:
msg_process.status = constants.MIGRATED
msg_process.put()
# Then delete previous email
logging.info("Delaying delete of msg %s for user %s" % (msg_id, user_email))
deferred.defer(delayed_delete_message, msg_id=msg_id,
process_id=process_id, _countdown=30, _queue="elimination")
return True
