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-rw-r--r--src/leap/mail/imap/server.py1
-rw-r--r--src/leap/mail/smtp/gateway.py107
2 files changed, 77 insertions, 31 deletions
diff --git a/src/leap/mail/imap/server.py b/src/leap/mail/imap/server.py
index 7a9f810..11f3ccf 100644
--- a/src/leap/mail/imap/server.py
+++ b/src/leap/mail/imap/server.py
@@ -1153,7 +1153,6 @@ class SoledadMailbox(WithMsgFields):
# the server itself is a listener to the mailbox.
# so we can notify it (and should!) after chanes in flags
# and number of messages.
- print "emptying the listeners"
map(lambda i: self.listeners.remove(i), self.listeners)
def addListener(self, listener):
diff --git a/src/leap/mail/smtp/gateway.py b/src/leap/mail/smtp/gateway.py
index 06405b4..f6366af 100644
--- a/src/leap/mail/smtp/gateway.py
+++ b/src/leap/mail/smtp/gateway.py
@@ -14,7 +14,6 @@
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
"""
LEAP SMTP encrypted gateway.
@@ -32,7 +31,6 @@ The following classes comprise the SMTP gateway service:
"""
-
import re
from StringIO import StringIO
from email.Header import Header
@@ -46,6 +44,7 @@ from twisted.mail import smtp
from twisted.internet.protocol import ServerFactory
from twisted.internet import reactor, ssl
from twisted.internet import defer
+from twisted.internet.threads import deferToThread
from twisted.python import log
from leap.common.check import leap_assert, leap_assert_type
@@ -71,6 +70,9 @@ generator.Generator = RFC3156CompliantGenerator
# Helper utilities
#
+LOCAL_FQDN = "bitmask.local"
+
+
def validate_address(address):
"""
Validate C{address} as defined in RFC 2822.
@@ -96,10 +98,25 @@ def validate_address(address):
# SMTPFactory
#
+class SMTPHeloLocalhost(smtp.SMTP):
+ """
+ An SMTP class that ensures a proper FQDN
+ for localhost.
+
+ This avoids a problem in which unproperly configured providers
+ would complain about the helo not being a fqdn.
+ """
+
+ def __init__(self, *args):
+ smtp.SMTP.__init__(self, *args)
+ self.host = LOCAL_FQDN
+
+
class SMTPFactory(ServerFactory):
"""
Factory for an SMTP server with encrypted gatewaying capabilities.
"""
+ domain = LOCAL_FQDN
def __init__(self, userid, keymanager, host, port, cert, key,
encrypted_only):
@@ -152,7 +169,7 @@ class SMTPFactory(ServerFactory):
@return: The protocol.
@rtype: SMTPDelivery
"""
- smtpProtocol = smtp.SMTP(SMTPDelivery(
+ smtpProtocol = SMTPHeloLocalhost(SMTPDelivery(
self._userid, self._km, self._host, self._port, self._cert,
self._key, self._encrypted_only))
smtpProtocol.factory = self
@@ -379,21 +396,14 @@ class EncryptedMessage(object):
Handle end of message.
This method will encrypt and send the message.
+
+ :returns: a deferred
"""
log.msg("Message data complete.")
self.lines.append('') # add a trailing newline
- try:
- self._maybe_encrypt_and_sign()
- return self.sendMessage()
- except KeyNotFound:
- return None
-
- def parseMessage(self):
- """
- Separate message headers from body.
- """
- parser = Parser()
- return parser.parsestr('\r\n'.join(self.lines))
+ d = deferToThread(self._maybe_encrypt_and_sign)
+ d.addCallbacks(self.sendMessage, self.skipNoKeyErrBack)
+ return d
def connectionLost(self):
"""
@@ -405,6 +415,37 @@ class EncryptedMessage(object):
# unexpected loss of connection; don't save
self.lines = []
+ # ends IMessage implementation
+
+ def skipNoKeyErrBack(self, failure):
+ """
+ Errback that ignores a KeyNotFound
+
+ :param failure: the failure
+ :type Failure: Failure
+ """
+ err = failure.value
+ if failure.check(KeyNotFound):
+ pass
+ else:
+ raise err
+
+ def parseMessage(self):
+ """
+ Separate message headers from body.
+ """
+ parser = Parser()
+ return parser.parsestr('\r\n'.join(self.lines))
+
+ def sendQueued(self, r):
+ """
+ Callback for the queued message.
+
+ :param r: The result from the last previous callback in the chain.
+ :type r: anything
+ """
+ log.msg(r)
+
def sendSuccess(self, r):
"""
Callback for a successful send.
@@ -415,33 +456,40 @@ class EncryptedMessage(object):
log.msg(r)
signal(proto.SMTP_SEND_MESSAGE_SUCCESS, self._user.dest.addrstr)
- def sendError(self, e):
+ def sendError(self, failure):
"""
Callback for an unsuccessfull send.
:param e: The result from the last errback.
:type e: anything
"""
- log.msg(e)
- log.err()
signal(proto.SMTP_SEND_MESSAGE_ERROR, self._user.dest.addrstr)
+ err = failure.value
+ log.err(err)
+ raise err
- def sendMessage(self):
+ def sendMessage(self, *args):
"""
- Send the message.
-
- This method will prepare the message (headers and possibly encrypted
- body) and send it using the ESMTPSenderFactory.
+ Sends the message.
- @return: A deferred with callbacks for error and success of this
- message send.
- @rtype: twisted.internet.defer.Deferred
+ :return: A deferred with callbacks for error and success of this
+ #message send.
+ :rtype: twisted.internet.defer.Deferred
"""
- msg = self._msg.as_string(False)
+ d = deferToThread(self._route_msg)
+ d.addCallbacks(self.sendQueued, self.sendError)
+ return
+ def _route_msg(self):
+ """
+ Sends the msg using the ESMTPSenderFactory.
+ """
log.msg("Connecting to SMTP server %s:%s" % (self._host, self._port))
+ msg = self._msg.as_string(False)
+ # we construct a defer to pass to the ESMTPSenderFactory
d = defer.Deferred()
+ d.addCallbacks(self.sendSuccess, self.sendError)
# we don't pass an ssl context factory to the ESMTPSenderFactory
# because ssl will be handled by reactor.connectSSL() below.
factory = smtp.ESMTPSenderFactory(
@@ -451,15 +499,14 @@ class EncryptedMessage(object):
self._user.dest.addrstr,
StringIO(msg),
d,
+ heloFallback=True,
requireAuthentication=False,
requireTransportSecurity=True)
+ factory.domain = LOCAL_FQDN
signal(proto.SMTP_SEND_MESSAGE_START, self._user.dest.addrstr)
reactor.connectSSL(
self._host, self._port, factory,
contextFactory=SSLContextFactory(self._cert, self._key))
- d.addCallback(self.sendSuccess)
- d.addErrback(self.sendError)
- return d
#
# encryption methods