refactoring/integrating ARC code

This commit is contained in:
Gene Shuman
2017-01-17 13:20:20 -08:00
parent 697d55d057
commit ac6d9a6bb3
6 changed files with 363 additions and 721 deletions
+351 -534
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File diff suppressed because it is too large Load Diff
+1 -1
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@@ -72,7 +72,7 @@ Y+vtSBczUiKERHv1yRbcaQtZFh5wtiRrN04BLUTD21MycBX5jYchHjPY/wIDAQAB"""
# A message verifies after being signed.
sig_lines = dkim.arc_sign(
self.message, b"test", b"example.com", self.key,
"test.domain: none", dkim.CV_None)
b"test.domain: none", dkim.CV_None)
(cv, res, reason) = dkim.arc_verify(b''.join(sig_lines) + self.message, dnsfunc=self.dnsfunc)
self.assertEquals(cv, dkim.CV_Pass)
+8 -4
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@@ -16,6 +16,8 @@
#
# Copyright (c) 2011 William Grant <me@williamgrant.id.au>
import re
import logging
try:
from logging import NullHandler
@@ -61,12 +63,14 @@ def parse_tag_value(tag_list):
tag_specs.pop()
for tag_spec in tag_specs:
try:
key, value = tag_spec.split(b'=', 1)
key, value = [x.strip() for x in tag_spec.split(b'=', 1)]
except ValueError:
raise InvalidTagSpec(tag_spec)
if key.strip() in tags:
raise DuplicateTag(key.strip())
tags[key.strip()] = value.strip()
if re.match(br'^[a-zA-Z](\w)*', key) is None:
raise InvalidTagSpec(tag_spec)
if key in tags:
raise DuplicateTag(key)
tags[key] = value
return tags
+3
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@@ -2,6 +2,9 @@ import unittest
import doctest
import dkim
from dkim.tests import test_suite
from dkim.tests.test_arc import test_suite as arc_test_suite
import logging
doctest.testmod(dkim)
unittest.TextTestRunner().run(test_suite())
unittest.TextTestRunner().run(arc_test_suite())
-34
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@@ -1,34 +0,0 @@
# This software is provided 'as-is', without any express or implied
# warranty. In no event will the author be held liable for any damages
# arising from the use of this software.
#
# Permission is granted to anyone to use this software for any purpose,
# including commercial applications, and to alter it and redistribute it
# freely, subject to the following restrictions:
#
# 1. The origin of this software must not be misrepresented; you must not
# claim that you wrote the original software. If you use this software
# in a product, an acknowledgment in the product documentation would be
# appreciated but is not required.
# 2. Altered source versions must be plainly marked as such, and must not be
# misrepresented as being the original software.
# 3. This notice may not be removed or altered from any source distribution.
#
# Copyright (c) 2011 William Grant <me@williamgrant.id.au>
#
# This has been modified from the original software.
# Copyright (c) 2016 Google, Inc.
# Contact: Brandon Long <blong@google.com>
import unittest
def test_suite():
from arc.tests import (
test_arc,
)
modules = [
test_arc,
]
suites = [x.test_suite() for x in modules]
return unittest.TestSuite(suites)
-148
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@@ -1,148 +0,0 @@
# This software is provided 'as-is', without any express or implied
# warranty. In no event will the author be held liable for any damages
# arising from the use of this software.
#
# Permission is granted to anyone to use this software for any purpose,
# including commercial applications, and to alter it and redistribute it
# freely, subject to the following restrictions:
#
# 1. The origin of this software must not be misrepresented; you must not
# claim that you wrote the original software. If you use this software
# in a product, an acknowledgment in the product documentation would be
# appreciated but is not required.
# 2. Altered source versions must be plainly marked as such, and must not be
# misrepresented as being the original software.
# 3. This notice may not be removed or altered from any source distribution.
#
# Copyright (c) 2011 William Grant <me@williamgrant.id.au>
#
# This has been modified from the original software.
# Copyright (c) 2016 Google, Inc.
# Contact: Brandon Long <blong@google.com>
import os.path
import unittest
import time
import arc
def read_test_data(filename):
"""Get the content of the given test data file.
The files live in dkim/tests/data.
"""
path = os.path.join(os.path.dirname(__file__), '../../dkim/tests/data', filename)
with open(path, 'rb') as f:
return f.read()
class TestSignAndVerify(unittest.TestCase):
"""End-to-end signature and verification tests."""
def setUp(self):
self.message = read_test_data("test.message")
self.key = read_test_data("test.private")
def dnsfunc(self, domain):
sample_dns = """\
k=rsa; \
p=MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBANmBe10IgY+u7h3enWTukkqtUD5PR52T\
b/mPfjC0QJTocVBq6Za/PlzfV+Py92VaCak19F4WrbVTK5Gg5tW220MCAwEAAQ=="""
_dns_responses = {
'example._domainkey.canonical.com.': sample_dns,
'test._domainkey.example.com.': read_test_data("test.txt"),
# dnsfunc returns empty if no txt record
'missing._domainkey.example.com.': '',
'20120113._domainkey.gmail.com.': """k=rsa; \
p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1Kd87/UeJjenpabgbFwh\
+eBCsSTrqmwIYYvywlbhbqoo2DymndFkbjOVIPIldNs/m40KF+yzMn1skyoxcTUGCQ\
s8g3FgD2Ap3ZB5DekAo5wMmk4wimDO+U8QzI3SD07y2+07wlNWwIt8svnxgdxGkVbb\
hzY8i+RQ9DpSVpPbF7ykQxtKXkv/ahW3KjViiAH+ghvvIhkx4xYSIc9oSwVmAl5Oct\
MEeWUwg8Istjqz8BZeTWbf41fbNhte7Y+YqZOwq1Sd0DbvYAD9NOZK9vlfuac0598H\
Y+vtSBczUiKERHv1yRbcaQtZFh5wtiRrN04BLUTD21MycBX5jYchHjPY/wIDAQAB"""
}
try:
domain = domain.decode('ascii')
except UnicodeDecodeError:
return None
self.assertTrue(domain in _dns_responses,domain)
return _dns_responses[domain]
def test_verifies(self):
# A message verifies after being signed.
sig_lines = arc.sign(
self.message, b"test", b"example.com", self.key,
"test.domain: none", arc.CV_None)
(cv, res, reason) = arc.verify(''.join(sig_lines) + self.message, dnsfunc=self.dnsfunc)
self.assertEquals(cv, arc.CV_Pass)
def test_multiple_instances_verify(self):
# A message verifies after being signed multiple times.
message = self.message
sig_lines = arc.sign(
message, b"test", b"example.com", self.key,
"test.domain: none", arc.CV_None)
message = ''.join(sig_lines) + message
(cv, res, reason) = arc.verify(message, dnsfunc=self.dnsfunc)
self.assertEquals(cv, arc.CV_Pass)
for x in range(10):
sig_lines = arc.sign(
message, b"test", b"example.com", self.key,
"test.domain: arc=pass", arc.CV_Pass)
message = ''.join(sig_lines) + message
(cv, res, reason) = arc.verify(message, dnsfunc=self.dnsfunc)
self.assertEquals(cv, arc.CV_Pass)
def test_multiple_instances_verify_fail(self):
# A message return CV_Fail if signed as failure.
message = self.message
sig_lines = arc.sign(
message, b"test", b"example.com", self.key,
"test.domain: none", arc.CV_None)
message = ''.join(sig_lines) + message
(cv, res, reason) = arc.verify(message, dnsfunc=self.dnsfunc)
self.assertEquals(cv, arc.CV_Pass)
sig_lines = arc.sign(
message, b"test", b"example.com", self.key,
"test.domain: arc=pass", arc.CV_Fail)
message = ''.join(sig_lines) + message
# A conforming signer wouldn't sign as pass after a fail.
sig_lines = arc.sign(
message, b"test", b"example.com", self.key,
"test.domain: arc=pass", arc.CV_Pass)
message = ''.join(sig_lines) + message
(cv, res, reason) = arc.verify(message, dnsfunc=self.dnsfunc)
self.assertEquals(cv, arc.CV_Fail)
def test_altered_body_fails(self):
# An altered body fails verification.
sig_lines = arc.sign(
self.message, b"test", b"example.com", self.key,
"test.domain: none", arc.CV_None)
(cv, res, reason) = arc.verify(''.join(sig_lines) + self.message + b"foo", dnsfunc=self.dnsfunc)
self.assertEquals(cv, arc.CV_Fail)
def test_dns_pk_mismatch_fails(self):
# DNS public key doesn't match signing private key.
sig_lines = arc.sign(
self.message, b"example", b"canonical.com", self.key,
"test.domain: none", arc.CV_None)
(cv, res, reason) = arc.verify(''.join(sig_lines) + self.message, dnsfunc=self.dnsfunc)
self.assertEquals(cv, arc.CV_Fail)
def test_dns_missing_fails(self):
# DNS public key missing fails verify
sig_lines = arc.sign(
self.message, b"missing", b"example.com", self.key,
"test.domain: none", arc.CV_None)
(cv, res, reason) = arc.verify(''.join(sig_lines) + self.message, dnsfunc=self.dnsfunc)
self.assertEquals(cv, arc.CV_Fail)
def test_suite():
from unittest import TestLoader
return TestLoader().loadTestsFromName(__name__)