5 files changed, 413 insertions, 0 deletions
diff --git a/src/leap/email/smtp/tests/185CA770.key b/src/leap/email/smtp/tests/185CA770.key
new file mode 100644
index 00000000..587b4164
--- /dev/null
+++ b/src/leap/email/smtp/tests/185CA770.key
@@ -0,0 +1,79 @@
+-----BEGIN PGP PRIVATE KEY BLOCK-----
+Version: GnuPG v1.4.10 (GNU/Linux)
+
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+-----END PGP PRIVATE KEY BLOCK-----
diff --git a/src/leap/email/smtp/tests/185CA770.pub b/src/leap/email/smtp/tests/185CA770.pub
new file mode 100644
index 00000000..38af19f8
--- /dev/null
+++ b/src/leap/email/smtp/tests/185CA770.pub
@@ -0,0 +1,52 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v1.4.10 (GNU/Linux)
+
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+-----END PGP PUBLIC KEY BLOCK-----
diff --git a/src/leap/email/smtp/tests/__init__.py b/src/leap/email/smtp/tests/__init__.py
new file mode 100644
index 00000000..d00ebeb5
--- /dev/null
+++ b/src/leap/email/smtp/tests/__init__.py
@@ -0,0 +1,196 @@
+from leap.email.smtp.smtprelay import GPGWrapper
+import shutil
+from twisted.trial import unittest
+
+class OpenPGPTestCase(unittest.TestCase):
+
+    PREFIX     = "/var/tmp"
+    GNUPG_HOME = "%s/gnupg" % PREFIX
+    EMAIL      = 'leap@leap.se'
+
+    def setUp(self):
+        self._gpg = GPGWrapper(gpghome=self.GNUPG_HOME)
+        
+        self.assertEqual(self._gpg.import_keys(PUBLIC_KEY).summary(),
+                         '1 imported', "error importing public key")
+        self.assertEqual(self._gpg.import_keys(PRIVATE_KEY).summary(),
+                         # note that gnupg does not return a successful import
+                         # for private keys. Bug?
+                         '0 imported', "error importing private key")
+
+    def tearDown(self):
+        shutil.rmtree(self.GNUPG_HOME)
+
+    def test_openpgp_encrypt_decrypt(self):
+        text = "simple raw text"
+        encrypted = str(self._gpg.encrypt(text, KEY_FINGERPRINT,
+                                          # TODO: handle always trust issue
+                                          always_trust=True))
+        self.assertNotEqual(text, encrypted, "failed encrypting text")
+        decrypted = str(self._gpg.decrypt(encrypted))
+        self.assertEqual(text, decrypted, "failed decrypting text")
+        
+
+
+# Key material for testing
+KEY_FINGERPRINT = "E36E738D69173C13D709E44F2F455E2824D18DDF"
+PUBLIC_KEY = """
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v1.4.10 (GNU/Linux)
+
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+=MuOY
+-----END PGP PUBLIC KEY BLOCK-----
+"""
+PRIVATE_KEY = """
+-----BEGIN PGP PRIVATE KEY BLOCK-----
+Version: GnuPG v1.4.10 (GNU/Linux)
+
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+RZXoH+FTg9UAW87eqU610npOkT6cRaBxaMK/mDtGNdc=
+=JTFu
+-----END PGP PRIVATE KEY BLOCK-----
+"""
diff --git a/src/leap/email/smtp/tests/mail.txt b/src/leap/email/smtp/tests/mail.txt
new file mode 100644
index 00000000..95420470
--- /dev/null
+++ b/src/leap/email/smtp/tests/mail.txt
@@ -0,0 +1,10 @@
+HELO drebs@riseup.net
+MAIL FROM: drebs@riseup.net
+RCPT TO: drebs@riseup.net
+RCPT TO: drebs@leap.se
+DATA
+Subject: leap test
+
+Hello world!
+.
+QUIT
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)
+