Merge branch 'feature/smtp-relay' into develop

1 files changed, 76 insertions, 0 deletions

diff --git a/src/leap/email/smtp/tests/test_smtprelay.py b/src/leap/email/smtp/tests/test_smtprelay.py
new file mode 100644
index 00000000..dc0055c6
--- /dev/null
+++ b/src/leap/email/smtp/tests/test_smtprelay.py
@@ -0,0 +1,76 @@
+from datetime import datetime
+import re
+from leap.email.smtp.smtprelay import (
+    SMTPFactory,
+    #SMTPDelivery, # an object
+    EncryptedMessage,
+)
+from leap.email.smtp import tests
+from twisted.internet.error import ConnectionDone
+from twisted.test import proto_helpers
+from twisted.internet import defer
+from twisted.mail.smtp import User
+
+
+# some regexps
+IP_REGEX = "(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])";
+HOSTNAME_REGEX = "(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])";
+IP_OR_HOST_REGEX = '(' + IP_REGEX + '|' + HOSTNAME_REGEX + ')'
+
+class TestSmtpRelay(tests.OpenPGPTestCase):
+    
+
+    EMAIL_DATA = [ 'HELO relay.leap.se',
+                   'MAIL FROM: <user@leap.se>',
+                   'RCPT TO: <leap@leap.se>',
+                   'DATA',
+                   'From: User <user@leap.se>',
+                   'To: Leap <leap@leap.se>',
+                   'Date: ' + datetime.now().strftime('%c'),
+                   'Subject: test message',
+                   '',
+                   'This is a secret message.',
+                   'Yours,',
+                   'A.',
+                   '',
+                   '.',
+                   'QUIT' ]
+
+
+    def assertMatch(self, string, pattern, msg=None):
+        if not re.match(pattern, string):
+            msg = self._formatMessage(msg, '"%s" does not match pattern "%s".'
+            % (string, pattern))
+            raise self.failureException(msg)
+
+
+    def test_relay_accepts_valid_email(self):
+        """
+        Test if SMTP server responds correctly for valid interaction.
+        """
+        SMTP_ANSWERS = [ '220 ' + IP_OR_HOST_REGEX + ' NO UCE NO UBE NO RELAY PROBES',
+                         '250 ' + IP_OR_HOST_REGEX + ' Hello ' + IP_OR_HOST_REGEX + ', nice to meet you',
+                         '250 Sender address accepted',
+                         '250 Recipient address accepted',
+                         '354 Continue' ]
+        proto = SMTPFactory(self._gpg).buildProtocol(('127.0.0.1',0))
+        transport = proto_helpers.StringTransport()
+        proto.makeConnection(transport)
+        for i, line in enumerate(self.EMAIL_DATA):
+            proto.lineReceived(line + '\r\n')
+            self.assertMatch(transport.value(),
+                             '\r\n'.join(SMTP_ANSWERS[0:i+1]))
+        proto.setTimeout(None)
+
+
+    def test_message_encrypt(self):
+        proto = SMTPFactory(self._gpg).buildProtocol(('127.0.0.1',0))
+        user = User('leap@leap.se', 'relay.leap.se', proto, 'leap@leap.se')
+        m = EncryptedMessage(user, self._gpg)
+        for line in self.EMAIL_DATA[4:12]:
+            m.lineReceived(line)
+        m.parseMessage()
+        m.encrypt()
+        decrypted = str(self._gpg.decrypt(m.cyphertext))
+        self.assertEqual('\n'.join(self.EMAIL_DATA[9:12]), decrypted)
+