diff options
Diffstat (limited to 'src/leap/mail/smtp')
-rw-r--r-- | src/leap/mail/smtp/__init__.py | 78 | ||||
-rw-r--r-- | src/leap/mail/smtp/smtprelay.py | 533 | ||||
-rw-r--r-- | src/leap/mail/smtp/tests/185CA770.key | 79 | ||||
-rw-r--r-- | src/leap/mail/smtp/tests/185CA770.pub | 52 | ||||
-rw-r--r-- | src/leap/mail/smtp/tests/__init__.py | 218 | ||||
-rw-r--r-- | src/leap/mail/smtp/tests/mail.txt | 10 | ||||
-rw-r--r-- | src/leap/mail/smtp/tests/test_smtprelay.py | 78 |
7 files changed, 469 insertions, 579 deletions
diff --git a/src/leap/mail/smtp/__init__.py b/src/leap/mail/smtp/__init__.py index e69de29..ace79b5 100644 --- a/src/leap/mail/smtp/__init__.py +++ b/src/leap/mail/smtp/__init__.py @@ -0,0 +1,78 @@ +# -*- coding: utf-8 -*- +# __init__.py +# Copyright (C) 2013 LEAP +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + + +""" +SMTP relay helper function. +""" + + +from twisted.application import internet, service +from twisted.internet import reactor + + +from leap import soledad +from leap.common.keymanager import KeyManager +from leap.mail.smtp.smtprelay import SMTPFactory + + +def setup_smtp_relay(port, keymanager, smtp_host, smtp_port, smtp_username, + smtp_password, encrypted_only): + """ + Setup SMTP relay to run with Twisted. + + This function sets up the SMTP relay configuration and the Twisted + reactor. + + @param port: The port in which to run the server. + @type port: int + @param keymanager: A Key Manager from where to get recipients' public + keys. + @type keymanager: leap.common.keymanager.KeyManager + @param smtp_host: The hostname of the remote SMTP server. + @type smtp_host: str + @param smtp_port: The port of the remote SMTP server. + @type smtp_port: int + @param smtp_username: The username used to connect to remote SMTP server. + @type smtp_username: str + @param smtp_password: The password used to connect to remote SMTP server. + @type smtp_password: str + @param encrypted_only: Whether the SMTP relay should send unencrypted mail + or not. + @type encrypted_only: bool + """ + # The configuration for the SMTP relay is a dict with the following + # format: + # + # { + # 'host': '<host>', + # 'port': <int>, + # 'username': '<username>', + # 'password': '<password>', + # 'encrypted_only': <True/False> + # } + config = { + 'host': smtp_host, + 'port': smtp_port, + 'username': smtp_username, + 'password': smtp_password, + 'encrypted_only': encrypted_only + } + + # configure the use of this service with twistd + factory = SMTPFactory(keymanager, config) + reactor.listenTCP(port, factory) diff --git a/src/leap/mail/smtp/smtprelay.py b/src/leap/mail/smtp/smtprelay.py index 6479873..d87dc87 100644 --- a/src/leap/mail/smtp/smtprelay.py +++ b/src/leap/mail/smtp/smtprelay.py @@ -1,42 +1,182 @@ +# -*- coding: utf-8 -*- +# smtprelay.py +# Copyright (C) 2013 LEAP +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# 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 relay. """ import re +import os import gnupg +import tempfile + + from zope.interface import implements from StringIO import StringIO from twisted.mail import smtp from twisted.internet.protocol import ServerFactory from twisted.internet import reactor from twisted.internet import defer -from twisted.application import internet, service from twisted.python import log from email.Header import Header -from leap import soledad +from email.utils import parseaddr +from email.parser import Parser + + +from leap.common.check import leap_assert, leap_assert_type +from leap.common.keymanager import KeyManager +from leap.common.keymanager.openpgp import ( + OpenPGPKey, + encrypt_asym, + sign, +) +from leap.common.keymanager.errors import KeyNotFound + +# +# Exceptions +# -class SMTPInfoNotAvailable(Exception): +class MalformedConfig(Exception): + """ + Raised when the configuration dictionary passed as parameter is malformed. + """ pass +# +# Helper utilities +# + +HOST_KEY = 'host' +PORT_KEY = 'port' +USERNAME_KEY = 'username' +PASSWORD_KEY = 'password' +ENCRYPTED_ONLY_KEY = 'encrypted_only' + + +def assert_config_structure(config): + """ + Assert that C{config} is a dict with the following structure: + + { + HOST_KEY: '<str>', + PORT_KEY: <int>, + USERNAME_KEY: '<str>', + PASSWORD_KEY: '<str>', + ENCRYPTED_ONLY_KEY: <bool>, + } + + @param config: The dictionary to check. + @type config: dict + """ + # assert smtp config structure is valid + leap_assert_type(config, dict) + leap_assert(HOST_KEY in config) + leap_assert_type(config[HOST_KEY], str) + leap_assert(PORT_KEY in config) + leap_assert_type(config[PORT_KEY], int) + leap_assert(USERNAME_KEY in config) + leap_assert_type(config[USERNAME_KEY], str) + leap_assert(PASSWORD_KEY in config) + leap_assert_type(config[PASSWORD_KEY], str) + leap_assert(ENCRYPTED_ONLY_KEY in config) + leap_assert_type(config[ENCRYPTED_ONLY_KEY], bool) + # assert received params are not empty + leap_assert(config[HOST_KEY] != '') + leap_assert(config[PORT_KEY] is not 0) + leap_assert(config[USERNAME_KEY] != '') + leap_assert(config[PASSWORD_KEY] != '') + + +def validate_address(address): + """ + Validate C{address} as defined in RFC 2822. + + @param address: The address to be validated. + @type address: str + + @return: A valid address. + @rtype: str + + @raise smtp.SMTPBadRcpt: Raised if C{address} is invalid. + """ + leap_assert_type(address, str) + # the following parses the address as described in RFC 2822 and + # returns ('', '') if the parse fails. + _, address = parseaddr(address) + if address == '': + raise smtp.SMTPBadRcpt(address) + return address + + +# +# SMTPFactory +# + class SMTPFactory(ServerFactory): """ Factory for an SMTP server with encrypted relaying capabilities. """ - def __init__(self, soledad, gpg=None): - self._soledad = soledad - self._gpg = gpg + def __init__(self, keymanager, config): + """ + Initialize the SMTP factory. + + @param keymanager: A KeyManager for retrieving recipient's keys. + @type keymanager: leap.common.keymanager.KeyManager + @param config: A dictionary with smtp configuration. Should have + the following structure: + { + HOST_KEY: '<str>', + PORT_KEY: <int>, + USERNAME_KEY: '<str>', + PASSWORD_KEY: '<str>', + ENCRYPTED_ONLY_KEY: <bool>, + } + @type config: dict + """ + # assert params + leap_assert_type(keymanager, KeyManager) + assert_config_structure(config) + # and store them + self._km = keymanager + self._config = config def buildProtocol(self, addr): - "Return a protocol suitable for the job." - # TODO: use ESMTP here. - smtpProtocol = smtp.SMTP(SMTPDelivery(self._soledad, self._gpg)) + """ + Return a protocol suitable for the job. + + @param addr: An address, e.g. a TCP (host, port). + @type addr: twisted.internet.interfaces.IAddress + + @return: The protocol. + @rtype: SMTPDelivery + """ + # If needed, we might use ESMTPDelivery here instead. + smtpProtocol = smtp.SMTP(SMTPDelivery(self._km, self._config)) smtpProtocol.factory = self return smtpProtocol +# +# SMTPDelivery +# + class SMTPDelivery(object): """ Validate email addresses and handle message delivery. @@ -44,14 +184,47 @@ class SMTPDelivery(object): implements(smtp.IMessageDelivery) - def __init__(self, soledad, gpg=None): - self._soledad = soledad - if gpg: - self._gpg = gpg - else: - self._gpg = GPGWrapper() + def __init__(self, keymanager, config): + """ + Initialize the SMTP delivery object. + + @param keymanager: A KeyManager for retrieving recipient's keys. + @type keymanager: leap.common.keymanager.KeyManager + @param config: A dictionary with smtp configuration. Should have + the following structure: + { + HOST_KEY: '<str>', + PORT_KEY: <int>, + USERNAME_KEY: '<str>', + PASSWORD_KEY: '<str>', + ENCRYPTED_ONLY_KEY: <bool>, + } + @type config: dict + """ + # assert params + leap_assert_type(keymanager, KeyManager) + assert_config_structure(config) + # and store them + self._km = keymanager + self._config = config + self._origin = None def receivedHeader(self, helo, origin, recipients): + """ + Generate the 'Received:' header for a message. + + @param helo: The argument to the HELO command and the client's IP + address. + @type helo: (str, str) + @param origin: The address the message is from. + @type origin: twisted.mail.smtp.Address + @param recipients: A list of the addresses for which this message is + bound. + @type: list of twisted.mail.smtp.User + + @return: The full "Received" header string. + @type: str + """ myHostname, clientIP = helo headerValue = "by %s from %s with ESMTP ; %s" % ( myHostname, clientIP, smtp.rfc822date()) @@ -59,188 +232,264 @@ class SMTPDelivery(object): return "Received: %s" % Header(headerValue) def validateTo(self, user): - """Assert existence of and trust on recipient's GPG public key.""" + """ + Validate the address of C{user}, a recipient of the message. + + This method is called once for each recipient and validates the + C{user}'s address against the RFC 2822 definition. If the + configuration option ENCRYPTED_ONLY_KEY is True, it also asserts the + existence of the user's key. + + In the end, it returns an encrypted message object that is able to + send itself to the C{user}'s address. + + @param user: The user whose address we wish to validate. + @type: twisted.mail.smtp.User + + @return: A Deferred which becomes, or a callable which takes no + arguments and returns an object implementing IMessage. This will + be called and the returned object used to deliver the message when + it arrives. + @rtype: no-argument callable + + @raise SMTPBadRcpt: Raised if messages to the address are not to be + accepted. + """ # try to find recipient's public key try: - # this will raise an exception if key is not found - trust = self._gpg.find_key(user.dest.addrstr)['trust'] - # if key is not ultimatelly trusted, then the message will not - # be encrypted. So, we check for this below - #if trust != 'u': - # raise smtp.SMTPBadRcpt(user) + address = validate_address(user.dest.addrstr) + pubkey = self._km.get_key(address, OpenPGPKey) log.msg("Accepting mail for %s..." % user.dest) - return lambda: EncryptedMessage(user, soledad=self._soledad, - gpg=self._gpg) - except LookupError: + except KeyNotFound: # if key was not found, check config to see if will send anyway. - if self.encrypted_only: - raise smtp.SMTPBadRcpt(user) - # TODO: send signal to cli/gui that this user's key was not found? + if self._config[ENCRYPTED_ONLY_KEY]: + raise smtp.SMTPBadRcpt(user.dest.addrstr) log.msg("Warning: will send an unencrypted message (because " "encrypted_only' is set to False).") + return lambda: EncryptedMessage( + self._origin, user, self._km, self._config) + + def validateFrom(self, helo, origin): + """ + Validate the address from which the message originates. + + @param helo: The argument to the HELO command and the client's IP + address. + @type: (str, str) + @param origin: The address the message is from. + @type origin: twisted.mail.smtp.Address + + @return: origin or a Deferred whose callback will be passed origin. + @rtype: Deferred or Address - def validateFrom(self, helo, originAddress): + @raise twisted.mail.smtp.SMTPBadSender: Raised if messages from this + address are not to be accepted. + """ # accept mail from anywhere. To reject an address, raise # smtp.SMTPBadSender here. - return originAddress + self._origin = origin + return origin + +# +# EncryptedMessage +# -class EncryptedMessage(): +class EncryptedMessage(object): """ Receive plaintext from client, encrypt it and send message to a recipient. """ implements(smtp.IMessage) - SMTP_HOSTNAME = "mail.leap.se" - SMTP_PORT = 25 - - def __init__(self, user, soledad, gpg=None): - self.user = user - self._soledad = soledad - self.fetchConfig() + def __init__(self, fromAddress, user, keymanager, config): + """ + Initialize the encrypted message. + + @param fromAddress: The address of the sender. + @type fromAddress: twisted.mail.smtp.Address + @param user: The recipient of this message. + @type user: twisted.mail.smtp.User + @param keymanager: A KeyManager for retrieving recipient's keys. + @type keymanager: leap.common.keymanager.KeyManager + @param config: A dictionary with smtp configuration. Should have + the following structure: + { + HOST_KEY: '<str>', + PORT_KEY: <int>, + USERNAME_KEY: '<str>', + PASSWORD_KEY: '<str>', + ENCRYPTED_ONLY_KEY: <bool>, + } + @type config: dict + """ + # assert params + leap_assert_type(user, smtp.User) + leap_assert_type(keymanager, KeyManager) + assert_config_structure(config) + # and store them + self._fromAddress = fromAddress + self._user = user + self._km = keymanager + self._config = config + # initialize list for message's lines self.lines = [] - if gpg: - self._gpg = gpg - else: - self._gpg = GPGWrapper() def lineReceived(self, line): - """Store email DATA lines as they arrive.""" + """ + Handle another line. + + @param line: The received line. + @type line: str + """ self.lines.append(line) def eomReceived(self): - """Encrypt and send message.""" + """ + Handle end of message. + + This method will encrypt and send the message. + """ log.msg("Message data complete.") self.lines.append('') # add a trailing newline self.parseMessage() try: - self.encrypt() + self._encrypt_and_sign() return self.sendMessage() - except LookupError: + except KeyNotFound: return None def parseMessage(self): - """Separate message headers from body.""" - sep = self.lines.index('') - self.headers = self.lines[:sep] - self.body = self.lines[sep + 1:] + """ + Separate message headers from body. + """ + parser = Parser() + self._message = parser.parsestr('\r\n'.join(self.lines)) def connectionLost(self): + """ + Log an error when the connection is lost. + """ log.msg("Connection lost unexpectedly!") log.err() # unexpected loss of connection; don't save self.lines = [] def sendSuccess(self, r): + """ + Callback for a successful send. + + @param r: The result from the last previous callback in the chain. + @type r: anything + """ log.msg(r) def sendError(self, e): + """ + Callback for an unsuccessfull send. + + @param e: The result from the last errback. + @type e: anything + """ log.msg(e) log.err() - def prepareHeader(self): - self.headers.insert(1, "From: %s" % self.user.orig.addrstr) - self.headers.insert(2, "To: %s" % self.user.dest.addrstr) - self.headers.append('') - def sendMessage(self): - self.prepareHeader() - msg = '\n'.join(self.headers + [self.cyphertext]) + """ + Send the message. + + This method will prepare the message (headers and possibly encrypted + body) and send it using the ESMTPSenderFactory. + + @return: A deferred with callbacks for error and success of this + message send. + @rtype: twisted.internet.defer.Deferred + """ + msg = self._message.as_string(False) d = defer.Deferred() - factory = smtp.ESMTPSenderFactory(self.smtp_username, - self.smtp_password, - self.smtp_username, - self.user.dest.addrstr, - StringIO(msg), - d) - # the next call is TSL-powered! - reactor.connectTCP(self.SMTP_HOSTNAME, self.SMTP_PORT, factory) + factory = smtp.ESMTPSenderFactory( + self._config[USERNAME_KEY], + self._config[PASSWORD_KEY], + self._fromAddress.addrstr, + self._user.dest.addrstr, + StringIO(msg), + d, + requireAuthentication=False, # for now do unauth, see issue #2474 + ) + # TODO: Change this to connectSSL when cert auth is in place in the platform + reactor.connectTCP( + self._config[HOST_KEY], + self._config[PORT_KEY], + factory + ) d.addCallback(self.sendSuccess) d.addErrback(self.sendError) return d - def encrypt(self, always_trust=True): - # TODO: do not "always trust" here. - try: - fp = self._gpg.find_key(self.user.dest.addrstr)['fingerprint'] - log.msg("Encrypting to %s" % fp) - self.cyphertext = str( - self._gpg.encrypt( - '\n'.join(self.body), [fp], always_trust=always_trust)) - except LookupError: - if self.encrypted_only: - raise - log.msg("Warning: sending unencrypted mail (because " - "'encrypted_only' is set to False).") - - # this will be replaced by some other mechanism of obtaining credentials - # for SMTP server. - def fetchConfig(self): - # TODO: Soledad/LEAP bootstrap should store the SMTP info on local db, - # so this relay can load it when it needs. - if not self._soledad: - # TODO: uncomment below exception when integration with Soledad is - # smooth. - #raise SMTPInfoNotAvailable() - # TODO: remove dummy settings below when soledad bootstrap is - # working. - self.smtp_host = '' - self.smtp_port = '' - self.smtp_username = '' - self.smtp_password = '' - self.encrypted_only = True + def _encrypt_and_sign_payload_rec(self, message, pubkey, signkey): + """ + Recursivelly descend in C{message}'s payload encrypting to C{pubkey} + and signing with C{signkey}. + + @param message: The message whose payload we want to encrypt. + @type message: email.message.Message + @param pubkey: The public key used to encrypt the message. + @type pubkey: leap.common.keymanager.openpgp.OpenPGPKey + @param signkey: The private key used to sign the message. + @type signkey: leap.common.keymanager.openpgp.OpenPGPKey + """ + if message.is_multipart() is False: + message.set_payload( + encrypt_asym( + message.get_payload(), pubkey, sign=signkey)) else: - self.smtp_config = self._soledad.get_doc('smtp_relay_config') - for confname in [ - 'smtp_host', 'smtp_port', 'smtp_username', - 'smtp_password', 'encrypted_only', - ]: - setattr(self, confname, doc.content[confname]) - - -class GPGWrapper(): - """ - This is a temporary class for handling GPG requests, and should be - replaced by a more general class used throughout the project. - """ - - GNUPG_HOME = "~/.config/leap/gnupg" - GNUPG_BINARY = "/usr/bin/gpg" # TODO: change this based on OS - - def __init__(self, gpghome=GNUPG_HOME, gpgbinary=GNUPG_BINARY): - self.gpg = gnupg.GPG(gnupghome=gpghome, gpgbinary=gpgbinary) + for msg in message.get_payload(): + self._encrypt_and_sign_payload_rec(msg, pubkey, signkey) - def find_key(self, email): + def _sign_payload_rec(self, message, signkey): """ - Find user's key based on their email. + Recursivelly descend in C{message}'s payload signing with C{signkey}. + + @param message: The message whose payload we want to encrypt. + @type message: email.message.Message + @param pubkey: The public key used to encrypt the message. + @type pubkey: leap.common.keymanager.openpgp.OpenPGPKey + @param signkey: The private key used to sign the message. + @type signkey: leap.common.keymanager.openpgp.OpenPGPKey """ - for key in self.gpg.list_keys(): - for uid in key['uids']: - if re.search(email, uid): - return key - raise LookupError("GnuPG public key for %s not found!" % email) - - def encrypt(self, data, recipient, always_trust=True): - # TODO: do not 'always_trust'. - return self.gpg.encrypt(data, recipient, always_trust=always_trust) - - def decrypt(self, data): - return self.gpg.decrypt(data) - - def import_keys(self, data): - return self.gpg.import_keys(data) - + if message.is_multipart() is False: + message.set_payload( + sign( + message.get_payload(), signkey)) + else: + for msg in message.get_payload(): + self._sign_payload_rec(msg, signkey) -# service configuration -port = 25 -user_email = 'user@leap.se' # TODO: replace for real mail from gui/cli + def _encrypt_and_sign(self): + """ + Encrypt the message body. -# instantiate soledad for client app storage and sync -s = soledad.Soledad(user_email) -factory = SMTPFactory(s) + Fetch the recipient key and encrypt the content to the + recipient. If a key is not found, then the behaviour depends on the + configuration parameter ENCRYPTED_ONLY_KEY. If it is False, the message + is sent unencrypted and a warning is logged. If it is True, the + encryption fails with a KeyNotFound exception. -# enable the use of this service with twistd -application = service.Application("LEAP SMTP Relay") -service = internet.TCPServer(port, factory) -service.setServiceParent(application) + @raise KeyNotFound: Raised when the recipient key was not found and + the ENCRYPTED_ONLY_KEY configuration parameter is set to True. + """ + from_address = validate_address(self._fromAddress.addrstr) + signkey = self._km.get_key(from_address, OpenPGPKey, private=True) + log.msg("Will sign the message with %s." % signkey.fingerprint) + to_address = validate_address(self._user.dest.addrstr) + try: + # try to get the recipient pubkey + pubkey = self._km.get_key(to_address, OpenPGPKey) + log.msg("Will encrypt the message to %s." % pubkey.fingerprint) + self._encrypt_and_sign_payload_rec(self._message, pubkey, signkey) + except KeyNotFound: + # at this point we _can_ send unencrypted mail, because if the + # configuration said the opposite the address would have been + # rejected in SMTPDelivery.validateTo(). + self._sign_payload_rec(self._message, signkey) + log.msg('Will send unencrypted message to %s.' % to_address) diff --git a/src/leap/mail/smtp/tests/185CA770.key b/src/leap/mail/smtp/tests/185CA770.key deleted file mode 100644 index 587b416..0000000 --- a/src/leap/mail/smtp/tests/185CA770.key +++ /dev/null @@ -1,79 +0,0 @@ ------BEGIN PGP PRIVATE KEY BLOCK----- -Version: GnuPG v1.4.10 (GNU/Linux) - -lQIVBFCJNL4BEADFsI1TCD4yq7ZqL7VhdVviTuX6JUps8/mVEhRVOZhojLcTYaqQ -gs6T6WabRxcK7ymOnf4K8NhYdz6HFoJN46BT87etokx7J/Sl2OhpiqBQEY+jW8Rp -+3MSGrGmvFw0s1lGrz/cXzM7UNgWSTOnYZ5nJS1veMhy0jseZOUK7ekp2oEDjGZh -pzgd3zICCR2SvlpLIXB2Nr/CUcuRWTcc5LlKmbjMybu0E/uuY14st3JL+7qI6QX0 -atFm0VhFVpagOl0vWKxakUx4hC7j1wH2ADlCvSZPG0StSLUyHkJx3UPsmYxOZFao -ATED3Okjwga6E7PJEbzyqAkvzw/M973kaZCUSH75ZV0cQnpdgXV3DK1gSa3d3gug -W1lE0V7pwnN2NTOYfBMi+WloCs/bp4iZSr4QP1duZ3IqKraeBDCk7MoFo4A9Wk07 -kvqPwF9IBgatu62WVEZIzwyViN+asFUGfgp+8D7gtnlWAw0V6y/lSTzyl+dnLP98 -Hfr2eLBylFs+Kl3Pivpg2uHw09LLCrjeLEN3dj9SfBbA9jDIo9Zhs1voiIK/7Shx -E0BRJaBgG3C4QaytYEu7RFFOKuvBai9w2Y5OfsKFo8rA7v4dxFFDvzKGujCtNnwf -oyaGlZmMBU5MUmHUNiG8ON21COZBtK5oMScuY1VC9CQonj3OClg3IbU9SQARAQAB -/gNlAkdOVQG0JGRyZWJzIChncGcgdGVzdCBrZXkpIDxkcmVic0BsZWFwLnNlPokC -OAQTAQIAIgUCUIk0vgIbAwYLCQgHAwIGFQgCCQoLBBYCAwECHgECF4AACgkQty9e -xhhcp3Bdhw//bdPUNbp6rgIjRRuwYvGJ6IuiFuFWJQ0m3iAuuAoZo5GHAPqZAuGk -dMVYu0dtCtZ68MJ/QpjBCT9RRL+mgIgfLfUSj2ZknP4nb6baiG5u28l0KId/e5IC -iQKBnIsjxKxhLBVHSzRaS1P+vZeF2C2R9XyNy0eCnAwyCMcD0R8TVROGQ7i4ZQsM -bMj1LPpOwhV/EGp23nD+upWOVbn/wQHOYV2kMiA/8fizmWRIWsV4/68uMA+WDP4L -40AnJ0fcs04f9deM9P6pjlm00VD7qklYEGw6Mpr2g/M73kGh1nlAv+ImQBGlLMle -RXyzHY3WAhzmRKWO4koFuKeR9Q0EMzk2R4/kuagdWEpM+bhwE4xPV1tPZhn9qFTz -pQD4p/VT4qNQKOD0+aTFWre65Rt2cFFMLI7UmEHNLi0NB9JCIAi4+l+b9WQNlmaO -C8EhOGwRzmehUyHmXM3BNW28MnyKFJ7bBFMd7uJz+vAPOrr6OzuNvVCv2I2ICkTs -ihIj/zw5GXxkPO7YbMu9rKG0nKF1N3JB1gUJ78DHmhbjeaGSvHw85sPD0/1dPZK4 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-/3nDCTKhd3stTPnc8ymLAwhTP0bSoFh/KtU96D9ZMC2cu9XZ+UcSQYES/ncZWcLw -wTKrt+VwBG1z3DbV2O0ruUiXTLcZMsrwbUSDx1RVhmKZ0i42AttMdauFQ9JaX2CS -2ddqFBS1b4X6+VCy44KkpdXsmp0NWMgm/PM3PTisCxrha7bI5/LqfXG0b+GuIFb4 -h/lEA0Ae0gMgkzm3ePAPPVlRj7kFl5Osjxm3YVRW23WWGDRF5ywIROlBjbdozA0a -MyMgXlG9hhJseIpFveoiwqenNE5Wxg0yQbnhMUTKeCQ0xskG82P+c9bvDsevAQUR -uv1JAGGxDd1/4nk0M5m9/Gf4Bn0uLAz29LdMg0FFUvAm2ol3U3uChm7OISU8dqFy -JdCFACKBMzAREiXfgH2TrTxAhpy5uVcUSQV8x5J8qJ/mUoTF1WE3meXEm9CIvIAF -Mz49KKebLS3zGFixMcKLAOKA+s/tUWO7ZZoJyQjvQVerLyDo6UixVb11LQUJQOXb -ZIuSKV7deCgBDQ26C42SpF3rHfEQa7XH7j7tl1IIW/9DfYJYVQHaz1NTq6zcjWS2 -e+cUexBPhxbadGn0zelXr6DLJqQT7kaVeYOHlkYUHkZXdHE4CWoHqOboeB02uM/A -e7nge1rDi57ySrsF4AVl59QJYBPR43AOVbCJAh8EGAECAAkFAlCJNL4CGwwACgkQ -ty9exhhcp3DetA/8D/IscSBlWY3TjCD2P7t3+X34USK8EFD3QJse9dnCWOLcskFQ -IoIfhRM752evFu2W9owEvxSQdG+otQAOqL72k1EH2g7LsADuV8I4LOYOnLyeIE9I -b+CFPBkmzTEzrdYp6ITUU7qqgkhcgnltKGHoektIjxE8gtxCKEdyxkzazum6nCQQ -kSBZOXVU3ezm+A2QHHP6XT1GEbdKbJ0tIuJR8ADu08pBx2c/LDBBreVStrrt1Dbz -uR+U8MJsfLVcYX/Rw3V+KA24oLRzg91y3cfi3sNU/kmd5Cw42Tj00B+FXQny51Mq -s4KyqHobj62II68eL5HRB2pcGsoaedQyxu2cYSeVyarBOiUPNYkoGDJoKdDyZRIB -NNK0W+ASTf0zeHhrY/okt1ybTVtvbt6wkTEbKVePUaYmNmhre1cAj4uNwFzYjkzJ -cm+8XWftD+TV8cE5DyVdnF00SPDuPzodRAPXaGpQUMLkE4RPr1TAwcuoPH9aFHZ/ -se6rw6TQHLd0vMk0U/DocikXpSJ1N6caE3lRwI/+nGfXNiCr8MIdofgkBeO86+G7 -k0UXS4v5FKk1nwTyt4PkFJDvAJX6rZPxIZ9NmtA5ao5vyu1DT5IhoXgDzwurAe8+ -R+y6gtA324hXIweFNt7SzYPfI4SAjunlmm8PIBf3owBrk3j+w6EQoaCreK4= -=6HcJ ------END PGP PRIVATE KEY BLOCK----- diff --git a/src/leap/mail/smtp/tests/185CA770.pub b/src/leap/mail/smtp/tests/185CA770.pub deleted file mode 100644 index 38af19f..0000000 --- a/src/leap/mail/smtp/tests/185CA770.pub +++ /dev/null @@ -1,52 +0,0 @@ ------BEGIN PGP PUBLIC KEY BLOCK----- -Version: GnuPG v1.4.10 (GNU/Linux) - -mQINBFCJNL4BEADFsI1TCD4yq7ZqL7VhdVviTuX6JUps8/mVEhRVOZhojLcTYaqQ -gs6T6WabRxcK7ymOnf4K8NhYdz6HFoJN46BT87etokx7J/Sl2OhpiqBQEY+jW8Rp -+3MSGrGmvFw0s1lGrz/cXzM7UNgWSTOnYZ5nJS1veMhy0jseZOUK7ekp2oEDjGZh 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-5kSljuJKBbinkfUNBDM5NkeP5LmoHVhKTPm4cBOMT1dbT2YZ/ahU86UA+Kf1U+Kj -UCjg9PmkxVq3uuUbdnBRTCyO1JhBzS4tDQfSQiAIuPpfm/VkDZZmjgvBIThsEc5n -oVMh5lzNwTVtvDJ8ihSe2wRTHe7ic/rwDzq6+js7jb1Qr9iNiApE7IoSI/88ORl8 -ZDzu2GzLvayhtJyhdTdyQdYFCe/Ax5oW43mhkrx8PObDw9P9XT2SuPBooPIutmgs -X/DpST5bfGYQQaJc7OiE1DWu+UcPXybI91Frr9lRWiLkee2xVpmN7APSj4HX+41U -JQGSpVcpYuyJMmmZsQ2TRUKE3SAvbqNGoICAz/Myr9J9uQINBFCJNL4BEADjvAQE -e7AXao9kUTETXlkgOEvRrh31d2EAEZ6mLGyE7NY0YAKO48fWeQvNHGTsTlFSuwiY -7U6lNCQfUD/88FfYZOYusumkE8rHJUMkzTddGl7v98yZWuQ7oc/grPuVHFQJjSV/ -RYEzFb4SgxCGPyzZm/TKASzLrdQpA8fljwleOVjiAQg3Y9h6SI4nuKYbNP+uUloz -4lYN1rBWZY1caSQhlz+PBHrdm3/Gn2B9Zcd7EDHDW8iQAiD7c/mCs3O4yCsCkls4 -NVcmIpG5PXlgsXM+lSjSSoveGB/XO1PF903WfBtJBmFJXY2A73rMpZ7kJXBgrUhi -jgIazfwbtkdIKRYGJduO7u/Qpo6LXnzHb/ARlA1urvf0nqfcTd3VvEvO4ejP7b7N -AoZZAw6SXncwne04XYpBrxUSX1v/LE//qqEyrJMkkGgyHjSZ8WbsisBCyzAbwmRq -WpsJp5BBob7mVqtIfw8Mk7OEABPDlR1yUjN1De4TOJSSFIfrESidRQF103UmOHFD -WkvjirY9iyfOcxaoXwGeKRcCwoGGybVOYXo9i5zCTW2HEpI8W5PnOSI5KGURfhMY 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deleted file mode 100644 index d7b942a..0000000 --- a/src/leap/mail/smtp/tests/__init__.py +++ /dev/null @@ -1,218 +0,0 @@ -import os -import shutil -import tempfile - -from twisted.trial import unittest - -from leap.common.testing.basetest import BaseLeapTest -from leap.mail.smtp.smtprelay import GPGWrapper - - -class OpenPGPTestCase(unittest.TestCase, BaseLeapTest): - - def setUp(self): - # mimic LeapBaseTest.setUpClass behaviour, because this is deprecated - # in Twisted: http://twistedmatrix.com/trac/ticket/1870 - self.old_path = os.environ['PATH'] - self.old_home = os.environ['HOME'] - self.tempdir = tempfile.mkdtemp(prefix="leap_tests-") - self.home = self.tempdir - bin_tdir = os.path.join( - self.tempdir, - 'bin') - os.environ["PATH"] = bin_tdir - os.environ["HOME"] = self.tempdir - # setup our own stuff - self.gnupg_home = self.tempdir + '/gnupg' - os.mkdir(self.gnupg_home) - self.email = 'leap@leap.se' - 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): - # mimic LeapBaseTest.tearDownClass behaviour - os.environ["PATH"] = self.old_path - os.environ["HOME"] = self.old_home - # safety check - assert self.tempdir.startswith('/tmp/leap_tests-') - shutil.rmtree(self.tempdir) - - def test_openpgp_encrypt_decrypt(self): - "Test if openpgp can encrypt and decrypt." - 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) - -mQINBFC9+dkBEADNRfwV23TWEoGc/x0wWH1P7PlXt8MnC2Z1kKaKKmfnglVrpOiz 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PGP PUBLIC KEY BLOCK----- -""" -PRIVATE_KEY = """ ------BEGIN PGP PRIVATE KEY BLOCK----- -Version: GnuPG v1.4.10 (GNU/Linux) - -lQcYBFC9+dkBEADNRfwV23TWEoGc/x0wWH1P7PlXt8MnC2Z1kKaKKmfnglVrpOiz -iLWoiU58sfZ0L5vHkzXHXCBf6Eiy/EtUIvdiWAn+yASJ1mk5jZTBKO/WMAHD8wTO -zpMsFmWyg3xc4DkmFa9KQ5EVU0o/nqPeyQxNMQN7px5pPwrJtJFmPxnxm+aDkPYx -irDmz/4DeDNqXliazGJKw7efqBdlwTHkl9Akw2gwy178pmsKwHHEMOBOFFvX61AT -huKqHYmlCGSliwbrJppTG7jc1/ls3itrK+CWTg4txREkSpEVmfcASvw/ZqLbjgfs -d/INMwXnR9U81O8+7LT6yw/ca4ppcFoJD7/XJbkRiML6+bJ4Dakiy6i727BzV17g -wI1zqNvm5rAhtALKfACha6YO43aJzairO4II1wxVHvRDHZn2IuKDDephQ3Ii7/vb -hUOf6XCSmchkAcpKXUOvbxm1yfB1LRa64mMc2RcZxf4mW7KQkulBsdV5QG2276lv -U2UUy2IutXcGP5nXC+f6sJJGJeEToKJ57yiO/VWJFjKN8SvP+7AYsQSqINUuEf6H -T5gCPCraGMkTUTPXrREvu7NOohU78q6zZNaL3GW8ai7eSeANSuQ8Vzffx7Wd8Y7i -Pw9sYj0SMFs1UgjbuL6pO5ueHh+qyumbtAq2K0Bci0kqOcU4E9fNtdiovQARAQAB -AA/+JHtlL39G1wsH9R6UEfUQJGXR9MiIiwZoKcnRB2o8+DS+OLjg0JOh8XehtuCs -E/8oGQKtQqa5bEIstX7IZoYmYFiUQi9LOzIblmp2vxOm+HKkxa4JszWci2/ZmC3t 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-0GY8Jr3OL69dDQ21jueJAh8EGAEIAAkFAlC9+dkCGwwACgkQL0VeKCTRjd9HCw/+ -LQSVgLLF4ulYlPCjWIIuQwrPbJfWUVVr2dPUFVM85DCv8gBzk5c121snXh9Swovm -laBbw6ate3BmbXLh64jVE9Za5sbTWi7PCcbO/bpRy4d6oLmitmNw6cq0vjTLxUYy -bwuiJxWREkfxuU85EKdouN062YDevH+/YResmlJrcCE7LRlJFeRlKsrrwBU3BqYd -GgFJjKjQC1peeQ9fj62Y7xfwE9+PXbkiWO5u/Bk8hb1VZH1SoIRU98NHVcp6BVvp -VK0jLAXuSauSczULmpRjbyt1lhaAqivDTWEEZXiNNbRyp17c3nVdPWOcgBr42hdQ -z25CgZgyLCsvu82wuXLKJblrIPJX3Yf+si6KqEWBsmwdOWybsjygaF5HvzgFqAAD -U0goPWoQ71PorP2XOUNp5ZLkBQp5etvtkksjVNMIhnHn8PGMuoxO39EUGlWj2B5l -Cu8tSosAzB1pS8NcLZzoNoI9dOHrmgJmP+GrOUkcf5GhNZbMoj4GNfGBRYX0SZlQ -GuDrwNKYj73C4MWyNnnUFyq8nDHJ/G1NpaF2hiof9RBL4PUU/f92JkceXPBXA8gL -Mz2ig1OButwPPLFGQhWqxXAGrsS3Ny+BhTJfnfIbbkaLLphBpDZm1D9XKbAUvdd1 -RZXoH+FTg9UAW87eqU610npOkT6cRaBxaMK/mDtGNdc= -=JTFu ------END PGP PRIVATE KEY BLOCK----- -""" diff --git a/src/leap/mail/smtp/tests/mail.txt b/src/leap/mail/smtp/tests/mail.txt deleted file mode 100644 index 9542047..0000000 --- a/src/leap/mail/smtp/tests/mail.txt +++ /dev/null @@ -1,10 +0,0 @@ -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/mail/smtp/tests/test_smtprelay.py b/src/leap/mail/smtp/tests/test_smtprelay.py deleted file mode 100644 index eaa4d04..0000000 --- a/src/leap/mail/smtp/tests/test_smtprelay.py +++ /dev/null @@ -1,78 +0,0 @@ -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.test import proto_helpers -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(None, 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): - """ - Test if message gets encrypted to destination email. - """ - proto = SMTPFactory(None, self._gpg).buildProtocol(('127.0.0.1', 0)) - user = User('leap@leap.se', 'relay.leap.se', proto, 'leap@leap.se') - m = EncryptedMessage(user, None, 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) |