def handle_one_mail(log, mail, file_alias, file_alias_url,
signature_timestamp_checker):
"""Process one message.
Returns None when the message has either been successfully processed, or
handled as a known error condition, in which case a reply will have been
sent if appropriate.
"""
log.debug('processing mail from %r message-id %r' %
(mail['from'], mail['message-id']))
# If the Return-Path header is '<>', it probably means
# that it's a bounce from a message we sent.
if mail['Return-Path'] == '<>':
log.info("Message had an empty Return-Path.")
return
if mail.get_content_type() == 'multipart/report':
# Mails with a content type of multipart/report are
# generally DSN messages and should be ignored.
log.info("Got a multipart/report message.")
return
if 'precedence' in mail:
log.info("Got a message with a precedence header.")
return
if mail.raw_length > MAX_EMAIL_SIZE:
complaint = (
"The mail you sent to Launchpad is too long.\n\n"
"Your message <%s>\nwas %d MB and the limit is %d MB." %
(mail['message-id'], mail.raw_length / 1e6, MAX_EMAIL_SIZE / 1e6))
log.info(complaint)
# It's probably big and it's probably mostly binary, so trim it pretty
# aggressively.
send_process_error_notification(mail['From'],
'Mail to Launchpad was too large',
complaint,
mail,
max_return_size=8192)
return
try:
principal = authenticateEmail(mail, signature_timestamp_checker)
except (InvalidSignature, IncomingEmailError) as error:
send_process_error_notification(mail['From'], 'Submit Request Failure',
str(error), mail)
return
except InactiveAccount:
log.info("Inactive account found for %s" % mail['From'])
return
addresses = extract_addresses(mail, file_alias_url, log)
log.debug('mail was originally to: %r' % (addresses, ))
try:
do_paranoid_envelope_to_validation(addresses)
except AssertionError as e:
log.info("Invalid email address: %s" % e)
return
handler = None
for email_addr in addresses:
user, domain = email_addr.split('@')
handler = mail_handlers.get(domain)
if handler is not None:
break
else:
raise AssertionError("No handler registered for '%s' " %
(', '.join(addresses)))
if principal is None and not handler.allow_unknown_users:
log.info('Mail from unknown users not permitted for this handler')
return
handled = handler.process(mail, email_addr, file_alias)
if not handled:
raise AssertionError("Handler found, but message was not handled")
def test_get(self):
handler = mail_handlers.get(config.launchpad.code_domain)
self.assertIsInstance(handler, CodeHandler)
def handle_one_mail(log, mail, file_alias, file_alias_url,
signature_timestamp_checker):
"""Process one message.
Returns None when the message has either been successfully processed, or
handled as a known error condition, in which case a reply will have been
sent if appropriate.
"""
log.debug('processing mail from %r message-id %r' %
(mail['from'], mail['message-id']))
# If the Return-Path header is '<>', it probably means
# that it's a bounce from a message we sent.
if mail['Return-Path'] == '<>':
log.info("Message had an empty Return-Path.")
return
if mail.get_content_type() == 'multipart/report':
# Mails with a content type of multipart/report are
# generally DSN messages and should be ignored.
log.info("Got a multipart/report message.")
return
if 'precedence' in mail:
log.info("Got a message with a precedence header.")
return
if mail.raw_length > MAX_EMAIL_SIZE:
complaint = (
"The mail you sent to Launchpad is too long.\n\n"
"Your message <%s>\nwas %d MB and the limit is %d MB." %
(mail['message-id'], mail.raw_length / 1e6, MAX_EMAIL_SIZE / 1e6))
log.info(complaint)
# It's probably big and it's probably mostly binary, so trim it pretty
# aggressively.
send_process_error_notification(
mail['From'], 'Mail to Launchpad was too large', complaint,
mail, max_return_size=8192)
return
try:
principal = authenticateEmail(mail, signature_timestamp_checker)
except (InvalidSignature, IncomingEmailError) as error:
send_process_error_notification(
mail['From'], 'Submit Request Failure', str(error), mail)
return
except InactiveAccount:
log.info("Inactive account found for %s" % mail['From'])
return
addresses = extract_addresses(mail, file_alias_url, log)
log.debug('mail was originally to: %r' % (addresses,))
try:
do_paranoid_envelope_to_validation(addresses)
except AssertionError as e:
log.info("Invalid email address: %s" % e)
return
handler = None
for email_addr in addresses:
user, domain = email_addr.split('@')
handler = mail_handlers.get(domain)
if handler is not None:
break
else:
raise AssertionError(
"No handler registered for '%s' " % (', '.join(addresses)))
if principal is None and not handler.allow_unknown_users:
log.info('Mail from unknown users not permitted for this handler')
return
handled = handler.process(mail, email_addr, file_alias)
if not handled:
raise AssertionError("Handler found, but message was not handled")
def test_get(self):
handler = mail_handlers.get(config.launchpad.code_domain)
self.assertIsInstance(handler, CodeHandler)
