python3-aiosasl/0000755000175000017500000000000013320726347014414 5ustar horazonthorazontpython3-aiosasl/README.rst0000644000175000017500000000153713320664156016110 0ustar horazonthorazont``aiosasl``, pure python generic asyncio SASL library ##################################################### ``aiosasl`` provides a generic, asyncio-based SASL library. It can be used with any protocol, provided the neccessary interface code is provided by the application or protocol implementation. Dependencies ------------ * Python ≥ 3.4 (or Python = 3.3 with tulip) Supported SASL mechanisms ------------------------- * ``PLAIN``: authenticate with plaintext password (RFC 4616) * ``ANONYMOUS``: anonymous "authentication" (RFC 4505) * ``SCRAM-SHA-1``, ``SCRAM-SHA-224``, , ``SCRAM-SHA-512``, ``SCRAM-SHA-384``, and ``SCRAM-SHA-256``: Salted Challenge Response Authentication (RFC 5802) Documentation ------------- Official documentation can be built with sphinx and is available online `on our servers `_. python3-aiosasl/tests/0000755000175000017500000000000013320664156015555 5ustar horazonthorazontpython3-aiosasl/tests/test_aiosasl.py0000644000175000017500000005002613320664156020624 0ustar horazonthorazont######################################################################## # File name: test_aiosasl.py # This file is part of: aiosasl # # LICENSE # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this program. If not, see # . # ######################################################################## import asyncio import base64 import hashlib import hmac import unittest import unittest.mock import aiosasl def run_coroutine(coroutine, timeout=1.0, loop=None): if not loop: loop = asyncio.get_event_loop() return loop.run_until_complete( asyncio.wait_for( coroutine, timeout=timeout)) class CoroutineMock(unittest.mock.Mock): delay = 0 @asyncio.coroutine def __call__(self, *args, **kwargs): result = super().__call__(*args, **kwargs) yield from asyncio.sleep(self.delay) return result class SASLInterfaceMock(aiosasl.SASLInterface): def __init__(self, testobj, action_sequence): super().__init__() self._testobj = testobj self._action_sequence = action_sequence def _check_action(self, action, payload): try: (next_action, next_payload, new_state, result_payload) = self._action_sequence.pop(0) except ValueError: raise AssertionError( "SASL action performed unexpectedly: " "{} with payload {}".format( action, payload)) self._state = new_state self._testobj.assertEqual( action, next_action, "SASL action sequence violated") self._testobj.assertEqual( payload, next_payload, "SASL payload expectation violated") if new_state == "failure" and action != "abort": opaque_error, text = result_payload raise aiosasl.SASLFailure(opaque_error, text=text) if result_payload is not None: result_payload = result_payload return new_state, result_payload @asyncio.coroutine def initiate(self, mechanism, payload=None): return self._check_action("auth;"+mechanism, payload) @asyncio.coroutine def respond(self, payload): return self._check_action("response", payload) @asyncio.coroutine def abort(self): return self._check_action("abort", None) def finalize(self): self._testobj.assertFalse( self._action_sequence, "Not all actions performed") class TestSASLStateMachine(unittest.TestCase): def setUp(self): self.loop = asyncio.get_event_loop() self.intf = unittest.mock.Mock() self.intf.initiate = CoroutineMock() self.intf.respond = CoroutineMock() self.intf.abort = CoroutineMock() self.sm = aiosasl.SASLStateMachine(self.intf) self.intf.initiate.return_value = ("success", None) def test_initiate_calls_to_interface(self): result = run_coroutine( self.sm.initiate("foo", b"bar") ) self.intf.initiate.assert_called_with( "foo", payload=b"bar") self.assertEqual( run_coroutine(self.intf.initiate()), result ) def test_reject_double_initiate(self): run_coroutine(self.sm.initiate("foo", b"bar")) with self.assertRaisesRegexp(RuntimeError, "has already been called"): run_coroutine(self.sm.initiate("foo")) def test_reject_double_initiate_after_error(self): opaque_error = object() self.intf.initiate.side_effect = aiosasl.SASLFailure( opaque_error ) with self.assertRaises(aiosasl.SASLFailure): run_coroutine(self.sm.initiate("foo", b"bar")) with self.assertRaisesRegexp(RuntimeError, "has already been called"): run_coroutine(self.sm.initiate("foo")) def test_reject_response_without_challenge(self): with self.assertRaisesRegexp(RuntimeError, "no challenge"): run_coroutine(self.sm.response(b"bar")) def test_response_calls_to_interface(self): self.sm._state = "challenge" self.intf.respond.return_value = ("success", None) result = run_coroutine( self.sm.response(b"bar") ) self.intf.respond.assert_called_with(b"bar") self.assertEqual( run_coroutine(self.intf.initiate()), result ) def test_response_failure(self): opaque_error = object() self.sm._state = "challenge" self.intf.respond.side_effect = aiosasl.SASLFailure( opaque_error ) with self.assertRaises(aiosasl.SASLFailure): run_coroutine( self.sm.response(b"bar") ) self.assertEqual(self.sm._state, "failure") def test_reject_abort_without_initiate(self): with self.assertRaises(RuntimeError): run_coroutine(self.sm.abort()) def test_abort_calls_to_interface(self): self.sm._state = "challenge" self.intf.abort.return_value = ("failure", None) self.assertEqual( ("failure", None), run_coroutine(self.sm.abort()) ) self.intf.abort.assert_called_with() self.assertEqual(self.sm._state, "failure") def test_abort_set_to_failure_and_re_raise_exceptions(self): exc = Exception() self.sm._state = "challenge" self.intf.abort.side_effect = exc with self.assertRaises(Exception) as ctx: run_coroutine(self.sm.abort()) self.assertIs(ctx.exception, exc) self.intf.abort.assert_called_with() self.assertEqual(self.sm._state, "failure") def tearDown(self): del self.sm del self.intf del self.loop class TestPLAIN(unittest.TestCase): def test_rfc(self): user = "tim" password = "tanstaaftanstaaf" smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ("auth;PLAIN", b"\0tim\0tanstaaftanstaaf", "success", None) ])) @asyncio.coroutine def provide_credentials(*args): return user, password def run(): plain = aiosasl.PLAIN(provide_credentials) result = yield from plain.authenticate( smmock, "PLAIN") self.assertTrue(result) asyncio.get_event_loop().run_until_complete(run()) smmock.interface.finalize() def test_fail_on_protocol_violation(self): user = "tim" password = "tanstaaftanstaaf" smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ("auth;PLAIN", b"\0tim\0tanstaaftanstaaf", "challenge", b"foo") ])) @asyncio.coroutine def provide_credentials(*args): return user, password def run(): plain = aiosasl.PLAIN(provide_credentials) yield from plain.authenticate( smmock, "PLAIN") with self.assertRaisesRegexp(aiosasl.SASLFailure, "protocol violation") as ctx: asyncio.get_event_loop().run_until_complete(run()) self.assertEqual( None, ctx.exception.opaque_error ) smmock.interface.finalize() def test_reject_NUL_bytes_in_username(self): smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ])) @asyncio.coroutine def provide_credentials(*args): return "\0", "foo" with self.assertRaises(ValueError): run_coroutine( aiosasl.PLAIN(provide_credentials).authenticate( smmock, "PLAIN") ) def test_reject_NUL_bytes_in_password(self): smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ])) @asyncio.coroutine def provide_credentials(*args): return "foo", "\0" with self.assertRaises(ValueError): run_coroutine( aiosasl.PLAIN(provide_credentials).authenticate(smmock, "PLAIN") ) def test_supports_PLAIN(self): self.assertEqual( "PLAIN", aiosasl.PLAIN.any_supported(["PLAIN"]) ) def test_does_not_support_SCRAM(self): self.assertIsNone( aiosasl.PLAIN.any_supported(["SCRAM-SHA-1"]) ) class TestSCRAM(unittest.TestCase): def setUp(self): self.hashfun_factory = hashlib.sha1 self.digest_size = self.hashfun_factory().digest_size self.user = b"user" self.password = b"pencil" self.salt = b"QSXCR+Q6sek8bf92" aiosasl._system_random = unittest.mock.MagicMock() aiosasl._system_random.getrandbits.return_value = int.from_bytes( b"foo", "little") self.salted_password = aiosasl.pbkdf2( "sha1", self.password, self.salt, 4096, self.digest_size) self.client_key = hmac.new( self.salted_password, b"Client Key", self.hashfun_factory).digest() self.stored_key = self.hashfun_factory( self.client_key).digest() self.client_first_message_bare = b"n=user,r=Zm9vAAAAAAAAAAAAAAAA" self.server_first_message = b"".join([ b"r=Zm9vAAAAAAAAAAAAAAAA3rfcNHYJY1ZVvWVs7j,s=", base64.b64encode(self.salt), b",i=4096" ]) self.client_final_message_without_proof = \ b"c=biws,r=Zm9vAAAAAAAAAAAAAAAA3rfcNHYJY1ZVvWVs7j" self.auth_message = b",".join([ self.client_first_message_bare, self.server_first_message, self.client_final_message_without_proof ]) self.client_signature = hmac.new( self.stored_key, self.auth_message, self.hashfun_factory).digest() self.client_proof = ( int.from_bytes(self.client_signature, "big") ^ int.from_bytes(self.client_key, "big")).to_bytes( self.digest_size, "big") self.server_key = hmac.new( self.salted_password, b"Server Key", self.hashfun_factory).digest() self.server_signature = hmac.new( self.server_key, self.auth_message, self.hashfun_factory).digest() @asyncio.coroutine def _provide_credentials(self, *args): return ("user", "pencil") def _run(self, smmock): scram = aiosasl.SCRAM(self._provide_credentials) result = asyncio.get_event_loop().run_until_complete( scram.authenticate(smmock, ("SCRAM-SHA-1", "sha1")) ) smmock.interface.finalize() return result def test_rfc(self): smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ("auth;SCRAM-SHA-1", b"n,,"+self.client_first_message_bare, "challenge", self.server_first_message), ("response", self.client_final_message_without_proof + b",p="+base64.b64encode(self.client_proof), "success", b"v="+base64.b64encode(self.server_signature)) ])) self.assertTrue(self._run(smmock)) def test_malformed_reply(self): smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ("auth;SCRAM-SHA-1", b"n,,"+self.client_first_message_bare, "challenge", b"s=hut,t=hefu,c=kup,d=onny"), ("abort", None, "failure", ("aborted", None)) ])) with self.assertRaises(aiosasl.SASLFailure) as ctx: self._run(smmock) self.assertIn( "malformed", str(ctx.exception).lower() ) def test_other_malformed_reply(self): smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ("auth;SCRAM-SHA-1", b"n,,"+self.client_first_message_bare, "challenge", b"i=sometext,s=ABC,r=Zm9vAAAAAAAAAAAAAAAA3rfcNHYJY1ZVvWVs7j"), ("abort", None, "failure", ("aborted", None)) ])) with self.assertRaises(aiosasl.SASLFailure) as ctx: self._run(smmock) self.assertIn( "malformed", str(ctx.exception).lower() ) def test_incorrect_nonce(self): smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ("auth;SCRAM-SHA-1", b"n,,"+self.client_first_message_bare, "challenge", b"r=foobar,s="+base64.b64encode(self.salt)+b",i=4096"), ("abort", None, "failure", ("aborted", None)) ])) with self.assertRaisesRegexp(aiosasl.SASLFailure, "nonce") as ctx: self._run(smmock) self.assertIsNone(ctx.exception.opaque_error) def test_invalid_signature(self): smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ("auth;SCRAM-SHA-1", b"n,,"+self.client_first_message_bare, "challenge", self.server_first_message), ("response", self.client_final_message_without_proof + b",p="+base64.b64encode(self.client_proof), "success", b"v="+base64.b64encode(b"fnord")) ])) with self.assertRaises(aiosasl.SASLFailure) as ctx: self._run(smmock) self.assertIsNone(ctx.exception.opaque_error) self.assertIn( "signature", str(ctx.exception).lower() ) def test_supports_SCRAM_famliy(self): hashes = ["SHA-1", "SHA-224", "SHA-256", "SHA-512", "SHA-384", "SHA-256"] for hashname in hashes: mechanism = "SCRAM-{}".format(hashname) self.assertEqual( (mechanism, hashname.replace("-", "").lower()), aiosasl.SCRAM.any_supported([mechanism]) ) def test_pick_longest_hash(self): self.assertEqual( ("SCRAM-SHA-512", "sha512"), aiosasl.SCRAM.any_supported([ "SCRAM-SHA-1", "SCRAM-SHA-512", "SCRAM-SHA-224", "PLAIN", ]) ) self.assertEqual( ("SCRAM-SHA-256", "sha256"), aiosasl.SCRAM.any_supported([ "SCRAM-SHA-1", "SCRAM-SHA-256", "SCRAM-SHA-224", "PLAIN", ]) ) def test_reject_scram_plus(self): hashes = ["SHA-1", "SHA-224", "SHA-256", "SHA-512", "SHA-384", "SHA-256"] for hashname in hashes: mechanism = "SCRAM-{}-PLUS".format(hashname) self.assertIsNone( aiosasl.SCRAM.any_supported([mechanism]) ) def test_reject_md5(self): self.assertIsNone( aiosasl.SCRAM.any_supported(["SCRAM-MD5"]) ) def test_reject_unknown_hash_functions(self): self.assertIsNone( aiosasl.SCRAM.any_supported(["SCRAM-FOOBAR"]) ) def test_parse_message_reject_long_keys(self): with self.assertRaisesRegexp(Exception, "protocol violation"): list(aiosasl.SCRAM.parse_message(b"foo=bar")) def test_parse_message_reject_m_key(self): with self.assertRaisesRegexp(Exception, "protocol violation"): list(aiosasl.SCRAM.parse_message(b"m=bar")) def test_parse_message_unescape_n_and_a_payload(self): data = list(aiosasl.SCRAM.parse_message(b"n=foo=2Cbar=3Dbaz," b"a=fnord=2Cfunky=3Dfunk")) self.assertSequenceEqual( [ (b"n", b"foo,bar=baz"), (b"a", b"fnord,funky=funk") ], data ) def test_promote_failure_to_authentication_failure(self): smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ("auth;SCRAM-SHA-1", b"n,,"+self.client_first_message_bare, "challenge", self.server_first_message), ("response", self.client_final_message_without_proof + b",p="+base64.b64encode(self.client_proof), "failure", ("credentials-expired", None)) ])) with self.assertRaises(aiosasl.AuthenticationFailure) as ctx: self._run(smmock) self.assertEqual( "credentials-expired", ctx.exception.opaque_error ) def test_reject_protocol_violation(self): smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ("auth;SCRAM-SHA-1", b"n,,"+self.client_first_message_bare, "challenge", self.server_first_message), ("response", self.client_final_message_without_proof + b",p="+base64.b64encode(self.client_proof), "challenge", b"foo") ])) with self.assertRaisesRegexp(aiosasl.SASLFailure, "protocol violation") as ctx: self._run(smmock) self.assertEqual( "malformed-request", ctx.exception.opaque_error ) def tearDown(self): import random aiosasl._system_random = random.SystemRandom() class TestANONYMOUS(unittest.TestCase): def test_accepts_ANONYMOUS(self): self.assertIsNotNone( aiosasl.ANONYMOUS.any_supported(["ANONYMOUS"]) ) def test_passes_token_through_trace(self): with unittest.mock.patch("aiosasl.trace") as trace: trace.return_value = "traced" anon = aiosasl.ANONYMOUS(unittest.mock.sentinel.token) trace.assert_called_with(unittest.mock.sentinel.token) smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ("auth;ANONYMOUS", b"traced", "success", None) ])) def run(): result = yield from anon.authenticate( smmock, "ANONYMOUS") self.assertTrue(result) asyncio.get_event_loop().run_until_complete(run()) smmock.interface.finalize() def test_simply_sends_token(self): smmock = aiosasl.SASLStateMachine(SASLInterfaceMock( self, [ ("auth;ANONYMOUS", b"sirhc", "success", None) ])) def run(): anon = aiosasl.ANONYMOUS("sirhc") result = yield from anon.authenticate( smmock, "ANONYMOUS") self.assertTrue(result) asyncio.get_event_loop().run_until_complete(run()) smmock.interface.finalize() python3-aiosasl/tests/test_stringprep.py0000644000175000017500000001211613320664156021364 0ustar horazonthorazont######################################################################## # File name: test_stringprep.py # This file is part of: aiosasl # # LICENSE # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this program. If not, see # . # ######################################################################## import unittest from aiosasl.stringprep import ( saslprep, check_bidi, trace, ) class Testcheck_bidi(unittest.TestCase): # some test cases which are not covered by the other tests def test_empty_string(self): check_bidi("") def test_L_RAL_violation(self): with self.assertRaises(ValueError): check_bidi("\u05be\u0041") class TestSASLprep(unittest.TestCase): def test_map_to_nothing_rfcx(self): self.assertEqual( "IX", saslprep("I\u00ADX"), "SASLprep requirement: map SOFT HYPHEN to nothing") def test_map_to_space(self): self.assertEqual( "I X", saslprep("I\u00A0X"), "SASLprep requirement: map SOFT HYPHEN to nothing") def test_identity_rfcx(self): self.assertEqual( "user", saslprep("user"), "SASLprep requirement: identity transform") def test_case_preservation_rfcx(self): self.assertEqual( "USER", saslprep("USER"), "SASLprep requirement: preserve case") def test_nfkc_rfcx(self): self.assertEqual( "a", saslprep("\u00AA"), "SASLprep requirement: NFKC") self.assertEqual( "IX", saslprep("\u2168"), "SASLprep requirement: NFKC") def test_prohibited_character_rfcx(self): with self.assertRaises( ValueError, msg="SASLprep requirement: prohibited character (C.2.1)"): saslprep("\u0007") with self.assertRaises( ValueError, msg="SASLprep requirement: prohibited character (C.8)"): saslprep("\u200E") def test_bidirectional_check_rfcx(self): with self.assertRaises( ValueError, msg="SASLprep requirement: bidirectional check"): saslprep("\u0627\u0031") def test_unassigned(self): with self.assertRaises( ValueError, msg="SASLprep requirement: unassigned"): saslprep("\u0221", allow_unassigned=False) with self.assertRaises( ValueError, msg="enforce no unassigned by default"): saslprep("\u0221") self.assertEqual( "\u0221", saslprep("\u0221", allow_unassigned=True)) class Testtrace(unittest.TestCase): def test_identity_rfcx(self): self.assertEqual( "user", trace("user"), "trace requirement: identity transform") def test_case_preservation_rfcx(self): self.assertEqual( "USER", trace("USER"), "trace requirement: preserve case") def test_prohibited_character_rfcx(self): with self.assertRaises( ValueError, msg="trace requirement: prohibited character (C.2.1)"): trace("\u0007") with self.assertRaises( ValueError, msg="trace requirement: prohibited character (C.2.2)"): trace("\u070F") with self.assertRaises( ValueError, msg="trace requirement: prohibited character (C.3)"): trace("\uE000") with self.assertRaises( ValueError, msg="trace requirement: prohibited character (C.4)"): trace("\uFDEF") with self.assertRaises( ValueError, msg="trace requirement: prohibited character (C.5)"): trace("\uD800") with self.assertRaises( ValueError, msg="trace requirement: prohibited character (C.6)"): trace("\uFFF9") with self.assertRaises( ValueError, msg="trace requirement: prohibited character (C.8)"): trace("\u0340") with self.assertRaises( ValueError, msg="trace requirement: prohibited character (C.9)"): trace("\U000E0001") def test_bidirectional_check_rfcx(self): with self.assertRaises( ValueError, msg="trace requirement: bidirectional check"): trace("\u0627\u0031") python3-aiosasl/.gitignore0000644000175000017500000000004413320664156016401 0ustar horazonthorazont__pycache__ aiosasl.egg-info .local python3-aiosasl/MANIFEST.in0000644000175000017500000000007513320664156016153 0ustar horazonthorazontinclude COPYING.gpl3 include COPYING.LESSER include LICENSES python3-aiosasl/.git/0000755000175000017500000000000013320727701015250 5ustar horazonthorazontpython3-aiosasl/.git/objects/0000755000175000017500000000000013320726337016705 5ustar horazonthorazontpython3-aiosasl/.git/objects/f5/0000755000175000017500000000000013320701435017207 5ustar horazonthorazontpython3-aiosasl/.git/objects/f5/99e28b8ab0d8c9c57a486c89c4a5132dcbd3b20000444000175000017500000000002213320701435024504 0ustar 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clone: from https://github.com/horazont/aiosasl 9ed293d2bc28a61719ab06a3b742cf967a4b143f 9ed293d2bc28a61719ab06a3b742cf967a4b143f Jonas Wielicki 1531144313 +0200 checkout: moving from 9ed293d2bc28a61719ab06a3b742cf967a4b143f to upstream/latest 9ed293d2bc28a61719ab06a3b742cf967a4b143f 9ed293d2bc28a61719ab06a3b742cf967a4b143f Jonas Wielicki 1531144317 +0200 checkout: moving from upstream/latest to debian/masetr 9ed293d2bc28a61719ab06a3b742cf967a4b143f 9ed293d2bc28a61719ab06a3b742cf967a4b143f Jonas Wielicki 1531144319 +0200 checkout: moving from debian/masetr to debian/master 9ed293d2bc28a61719ab06a3b742cf967a4b143f 1176cead5116ccac897d769c5ea4faa49de6f740 Jonas Wielicki 1531151137 +0200 commit: Bootstrap debian directory 1176cead5116ccac897d769c5ea4faa49de6f740 9ed293d2bc28a61719ab06a3b742cf967a4b143f Jonas Wielicki 1531161746 +0200 checkout: moving from debian/master to upstream/latest 9ed293d2bc28a61719ab06a3b742cf967a4b143f 1176cead5116ccac897d769c5ea4faa49de6f740 Jonas Wielicki 1531161798 +0200 checkout: moving from upstream/latest to debian/master 1176cead5116ccac897d769c5ea4faa49de6f740 e742d5388dc90faf3447090f2bb2714b56a2c33a Jonas Wielicki 1531161820 +0200 commit: Fix Closes number 0000000000000000000000000000000000000000 e742d5388dc90faf3447090f2bb2714b56a2c33a Jonas Wielicki 1531162279 +0200 checkout: moving from pristine-tar to debian/master e742d5388dc90faf3447090f2bb2714b56a2c33a 9ed293d2bc28a61719ab06a3b742cf967a4b143f Jonas Wielicki 1531162560 +0200 checkout: moving from debian/master to upstream/latest python3-aiosasl/.git/logs/refs/0000755000175000017500000000000013320664171017154 5ustar horazonthorazontpython3-aiosasl/.git/logs/refs/remotes/0000755000175000017500000000000013320726216020631 5ustar horazonthorazontpython3-aiosasl/.git/logs/refs/remotes/origin/0000755000175000017500000000000013320726233022117 5ustar horazonthorazontpython3-aiosasl/.git/logs/refs/remotes/origin/debian/0000755000175000017500000000000013320726216023342 5ustar horazonthorazontpython3-aiosasl/.git/logs/refs/remotes/origin/debian/master0000644000175000017500000000047013320726344024563 0ustar horazonthorazont0000000000000000000000000000000000000000 1176cead5116ccac897d769c5ea4faa49de6f740 Jonas Wielicki 1531161742 +0200 update by push 1176cead5116ccac897d769c5ea4faa49de6f740 e742d5388dc90faf3447090f2bb2714b56a2c33a Jonas Wielicki 1531161828 +0200 update by push python3-aiosasl/.git/logs/refs/remotes/origin/upstream/0000755000175000017500000000000013320726233023757 5ustar horazonthorazontpython3-aiosasl/.git/logs/refs/remotes/origin/upstream/latest0000644000175000017500000000023413320726233025175 0ustar horazonthorazont0000000000000000000000000000000000000000 9ed293d2bc28a61719ab06a3b742cf967a4b143f Jonas Wielicki 1531161755 +0200 update by push python3-aiosasl/.git/logs/refs/heads/0000755000175000017500000000000013320664175020244 5ustar horazonthorazontpython3-aiosasl/.git/logs/refs/heads/debian/0000755000175000017500000000000013320664204021457 5ustar horazonthorazontpython3-aiosasl/.git/logs/refs/heads/debian/master0000644000175000017500000000077613320726337022715 0ustar horazonthorazont0000000000000000000000000000000000000000 9ed293d2bc28a61719ab06a3b742cf967a4b143f Jonas Wielicki 1531144319 +0200 branch: Created from HEAD 9ed293d2bc28a61719ab06a3b742cf967a4b143f 1176cead5116ccac897d769c5ea4faa49de6f740 Jonas Wielicki 1531151137 +0200 commit: Bootstrap debian directory 1176cead5116ccac897d769c5ea4faa49de6f740 e742d5388dc90faf3447090f2bb2714b56a2c33a Jonas Wielicki 1531161820 +0200 commit: Fix Closes number python3-aiosasl/.git/logs/refs/heads/upstream/0000755000175000017500000000000013320664171022100 5ustar horazonthorazontpython3-aiosasl/.git/logs/refs/heads/upstream/latest0000644000175000017500000000024713320664171023322 0ustar horazonthorazont0000000000000000000000000000000000000000 9ed293d2bc28a61719ab06a3b742cf967a4b143f Jonas Wielicki 1531144313 +0200 branch: Created from HEAD python3-aiosasl/.git/HEAD0000644000175000017500000000004013320727700015665 0ustar horazonthorazontref: refs/heads/upstream/latest python3-aiosasl/.git/refs/0000755000175000017500000000000013320664156016213 5ustar horazonthorazontpython3-aiosasl/.git/refs/remotes/0000755000175000017500000000000013320726216017665 5ustar horazonthorazontpython3-aiosasl/.git/refs/remotes/origin/0000755000175000017500000000000013320726233021153 5ustar horazonthorazontpython3-aiosasl/.git/refs/remotes/origin/debian/0000755000175000017500000000000013320726344022400 5ustar horazonthorazontpython3-aiosasl/.git/refs/remotes/origin/debian/master0000644000175000017500000000005113320726344023612 0ustar horazonthorazonte742d5388dc90faf3447090f2bb2714b56a2c33a python3-aiosasl/.git/refs/remotes/origin/upstream/0000755000175000017500000000000013320726233023013 5ustar horazonthorazontpython3-aiosasl/.git/refs/remotes/origin/upstream/latest0000644000175000017500000000005113320726233024226 0ustar horazonthorazont9ed293d2bc28a61719ab06a3b742cf967a4b143f python3-aiosasl/.git/refs/heads/0000755000175000017500000000000013320664175017300 5ustar horazonthorazontpython3-aiosasl/.git/refs/heads/debian/0000755000175000017500000000000013320726337020521 5ustar horazonthorazontpython3-aiosasl/.git/refs/heads/debian/master0000644000175000017500000000005113320726337021733 0ustar horazonthorazonte742d5388dc90faf3447090f2bb2714b56a2c33a python3-aiosasl/.git/refs/heads/upstream/0000755000175000017500000000000013320664171021134 5ustar horazonthorazontpython3-aiosasl/.git/refs/heads/upstream/latest0000644000175000017500000000005113320664171022347 0ustar horazonthorazont9ed293d2bc28a61719ab06a3b742cf967a4b143f python3-aiosasl/.git/refs/tags/0000755000175000017500000000000013320664155017150 5ustar horazonthorazontpython3-aiosasl/.git/COMMIT_EDITMSG0000644000175000017500000000201413320726337017340 0ustar horazonthorazontFix Closes number # Please enter the commit message for your changes. Lines starting # with '#' will be ignored, and an empty message aborts the commit. # # On branch debian/master # Your branch is up to date with 'origin/debian/master'. # # Changes to be committed: # modified: debian/changelog # # Untracked files: # .pybuild/ # debian/.debhelper/ # debian/debhelper-build-stamp # debian/files # debian/python3-aiosasl.postinst.debhelper # debian/python3-aiosasl.prerm.debhelper # debian/python3-aiosasl.substvars # debian/python3-aiosasl/ # # ------------------------ >8 ------------------------ # Do not modify or remove the line above. # Everything below it will be ignored. diff --git a/debian/changelog b/debian/changelog index 1754866..88fdde2 100644 --- a/debian/changelog +++ b/debian/changelog @@ -1,5 +1,5 @@ python3-aiosasl (0.3.1-1) UNRELEASED; urgency=medium - * Initial release. (Closes: #XXXXXX) + * Initial release. (Closes: #892286) -- Jonas Wielicki Mon, 09 Jul 2018 17:13:49 +0200 python3-aiosasl/.git/hooks/0000755000175000017500000000000013320664155016376 5ustar horazonthorazontpython3-aiosasl/.git/hooks/fsmonitor-watchman.sample0000755000175000017500000000637713320664155023441 0ustar horazonthorazont#!/usr/bin/perl use strict; use warnings; use IPC::Open2; # An example hook script to integrate Watchman # (https://facebook.github.io/watchman/) with git to speed up detecting # new and modified files. # # The hook is passed a version (currently 1) and a time in nanoseconds # formatted as a string and outputs to stdout all files that have been # modified since the given time. Paths must be relative to the root of # the working tree and separated by a single NUL. # # To enable this hook, rename this file to "query-watchman" and set # 'git config core.fsmonitor .git/hooks/query-watchman' # my ($version, $time) = @ARGV; # Check the hook interface version if ($version == 1) { # convert nanoseconds to seconds $time = int $time / 1000000000; } else { die "Unsupported query-fsmonitor hook version '$version'.\n" . "Falling back to scanning...\n"; } my $git_work_tree; if ($^O =~ 'msys' || $^O =~ 'cygwin') { $git_work_tree = Win32::GetCwd(); $git_work_tree =~ tr/\\/\//; } else { require Cwd; $git_work_tree = Cwd::cwd(); } my $retry = 1; launch_watchman(); sub launch_watchman { my $pid = open2(\*CHLD_OUT, \*CHLD_IN, 'watchman -j --no-pretty') or die "open2() failed: $!\n" . "Falling back to scanning...\n"; # In the query expression below we're asking for names of files that # changed since $time but were not transient (ie created after # $time but no longer exist). # # To accomplish this, we're using the "since" generator to use the # recency index to select candidate nodes and "fields" to limit the # output to file names only. Then we're using the "expression" term to # further constrain the results. # # The category of transient files that we want to ignore will have a # creation clock (cclock) newer than $time_t value and will also not # currently exist. my $query = <<" END"; ["query", "$git_work_tree", { "since": $time, "fields": ["name"], "expression": ["not", ["allof", ["since", $time, "cclock"], ["not", "exists"]]] }] END print CHLD_IN $query; close CHLD_IN; my $response = do {local $/; }; die "Watchman: command returned no output.\n" . "Falling back to scanning...\n" if $response eq ""; die "Watchman: command returned invalid output: $response\n" . "Falling back to scanning...\n" unless $response =~ /^\{/; my $json_pkg; eval { require JSON::XS; $json_pkg = "JSON::XS"; 1; } or do { require JSON::PP; $json_pkg = "JSON::PP"; }; my $o = $json_pkg->new->utf8->decode($response); if ($retry > 0 and $o->{error} and $o->{error} =~ m/unable to resolve root .* directory (.*) is not watched/) { print STDERR "Adding '$git_work_tree' to watchman's watch list.\n"; $retry--; qx/watchman watch "$git_work_tree"/; die "Failed to make watchman watch '$git_work_tree'.\n" . "Falling back to scanning...\n" if $? != 0; # Watchman will always return all files on the first query so # return the fast "everything is dirty" flag to git and do the # Watchman query just to get it over with now so we won't pay # the cost in git to look up each individual file. print "/\0"; eval { launch_watchman() }; exit 0; } die "Watchman: $o->{error}.\n" . "Falling back to scanning...\n" if $o->{error}; binmode STDOUT, ":utf8"; local $, = "\0"; print @{$o->{files}}; } python3-aiosasl/.git/hooks/pre-receive.sample0000755000175000017500000000104013320664155022005 0ustar horazonthorazont#!/bin/sh # # An example hook script to make use of push options. # The example simply echoes all push options that start with 'echoback=' # and rejects all pushes when the "reject" push option is used. # # To enable this hook, rename this file to "pre-receive". if test -n "$GIT_PUSH_OPTION_COUNT" then i=0 while test "$i" -lt "$GIT_PUSH_OPTION_COUNT" do eval "value=\$GIT_PUSH_OPTION_$i" case "$value" in echoback=*) echo "echo from the pre-receive-hook: ${value#*=}" >&2 ;; reject) exit 1 esac i=$((i + 1)) done fi python3-aiosasl/.git/hooks/commit-msg.sample0000755000175000017500000000160013320664155021655 0ustar horazonthorazont#!/bin/sh # # An example hook script to check the commit log message. # Called by "git commit" with one argument, the name of the file # that has the commit message. The hook should exit with non-zero # status after issuing an appropriate message if it wants to stop the # commit. The hook is allowed to edit the commit message file. # # To enable this hook, rename this file to "commit-msg". # Uncomment the below to add a Signed-off-by line to the message. # Doing this in a hook is a bad idea in general, but the prepare-commit-msg # hook is more suited to it. # # SOB=$(git var GIT_AUTHOR_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p') # grep -qs "^$SOB" "$1" || echo "$SOB" >> "$1" # This example catches duplicate Signed-off-by lines. test "" = "$(grep '^Signed-off-by: ' "$1" | sort | uniq -c | sed -e '/^[ ]*1[ ]/d')" || { echo >&2 Duplicate Signed-off-by lines. exit 1 } python3-aiosasl/.git/hooks/pre-push.sample0000755000175000017500000000250413320664155021350 0ustar horazonthorazont#!/bin/sh # An example hook script to verify what is about to be pushed. Called by "git # push" after it has checked the remote status, but before anything has been # pushed. If this script exits with a non-zero status nothing will be pushed. # # This hook is called with the following parameters: # # $1 -- Name of the remote to which the push is being done # $2 -- URL to which the push is being done # # If pushing without using a named remote those arguments will be equal. # # Information about the commits which are being pushed is supplied as lines to # the standard input in the form: # # # # This sample shows how to prevent push of commits where the log message starts # with "WIP" (work in progress). remote="$1" url="$2" z40=0000000000000000000000000000000000000000 while read local_ref local_sha remote_ref remote_sha do if [ "$local_sha" = $z40 ] then # Handle delete : else if [ "$remote_sha" = $z40 ] then # New branch, examine all commits range="$local_sha" else # Update to existing branch, examine new commits range="$remote_sha..$local_sha" fi # Check for WIP commit commit=`git rev-list -n 1 --grep '^WIP' "$range"` if [ -n "$commit" ] then echo >&2 "Found WIP commit in $local_ref, not pushing" exit 1 fi fi done exit 0 python3-aiosasl/.git/hooks/pre-applypatch.sample0000755000175000017500000000065013320664155022536 0ustar horazonthorazont#!/bin/sh # # An example hook script to verify what is about to be committed # by applypatch from an e-mail message. # # The hook should exit with non-zero status after issuing an # appropriate message if it wants to stop the commit. # # To enable this hook, rename this file to "pre-applypatch". . git-sh-setup precommit="$(git rev-parse --git-path hooks/pre-commit)" test -x "$precommit" && exec "$precommit" ${1+"$@"} : python3-aiosasl/.git/hooks/update.sample0000755000175000017500000000703213320664155021070 0ustar horazonthorazont#!/bin/sh # # An example hook script to block unannotated tags from entering. # Called by "git receive-pack" with arguments: refname sha1-old sha1-new # # To enable this hook, rename this file to "update". # # Config # ------ # hooks.allowunannotated # This boolean sets whether unannotated tags will be allowed into the # repository. By default they won't be. # hooks.allowdeletetag # This boolean sets whether deleting tags will be allowed in the # repository. By default they won't be. # hooks.allowmodifytag # This boolean sets whether a tag may be modified after creation. By default # it won't be. # hooks.allowdeletebranch # This boolean sets whether deleting branches will be allowed in the # repository. By default they won't be. # hooks.denycreatebranch # This boolean sets whether remotely creating branches will be denied # in the repository. By default this is allowed. # # --- Command line refname="$1" oldrev="$2" newrev="$3" # --- Safety check if [ -z "$GIT_DIR" ]; then echo "Don't run this script from the command line." >&2 echo " (if you want, you could supply GIT_DIR then run" >&2 echo " $0 )" >&2 exit 1 fi if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then echo "usage: $0 " >&2 exit 1 fi # --- Config allowunannotated=$(git config --bool hooks.allowunannotated) allowdeletebranch=$(git config --bool hooks.allowdeletebranch) denycreatebranch=$(git config --bool hooks.denycreatebranch) allowdeletetag=$(git config --bool hooks.allowdeletetag) allowmodifytag=$(git config --bool hooks.allowmodifytag) # check for no description projectdesc=$(sed -e '1q' "$GIT_DIR/description") case "$projectdesc" in "Unnamed repository"* | "") echo "*** Project description file hasn't been set" >&2 exit 1 ;; esac # --- Check types # if $newrev is 0000...0000, it's a commit to delete a ref. zero="0000000000000000000000000000000000000000" if [ "$newrev" = "$zero" ]; then newrev_type=delete else newrev_type=$(git cat-file -t $newrev) fi case "$refname","$newrev_type" in refs/tags/*,commit) # un-annotated tag short_refname=${refname##refs/tags/} if [ "$allowunannotated" != "true" ]; then echo "*** The un-annotated tag, $short_refname, is not allowed in this repository" >&2 echo "*** Use 'git tag [ -a | -s ]' for tags you want to propagate." >&2 exit 1 fi ;; refs/tags/*,delete) # delete tag if [ "$allowdeletetag" != "true" ]; then echo "*** Deleting a tag is not allowed in this repository" >&2 exit 1 fi ;; refs/tags/*,tag) # annotated tag if [ "$allowmodifytag" != "true" ] && git rev-parse $refname > /dev/null 2>&1 then echo "*** Tag '$refname' already exists." >&2 echo "*** Modifying a tag is not allowed in this repository." >&2 exit 1 fi ;; refs/heads/*,commit) # branch if [ "$oldrev" = "$zero" -a "$denycreatebranch" = "true" ]; then echo "*** Creating a branch is not allowed in this repository" >&2 exit 1 fi ;; refs/heads/*,delete) # delete branch if [ "$allowdeletebranch" != "true" ]; then echo "*** Deleting a branch is not allowed in this repository" >&2 exit 1 fi ;; refs/remotes/*,commit) # tracking branch ;; refs/remotes/*,delete) # delete tracking branch if [ "$allowdeletebranch" != "true" ]; then echo "*** Deleting a tracking branch is not allowed in this repository" >&2 exit 1 fi ;; *) # Anything else (is there anything else?) echo "*** Update hook: unknown type of update to ref $refname of type $newrev_type" >&2 exit 1 ;; esac # --- Finished exit 0 python3-aiosasl/.git/hooks/prepare-commit-msg.sample0000755000175000017500000000272413320664155023321 0ustar horazonthorazont#!/bin/sh # # An example hook script to prepare the commit log message. # Called by "git commit" with the name of the file that has the # commit message, followed by the description of the commit # message's source. The hook's purpose is to edit the commit # message file. If the hook fails with a non-zero status, # the commit is aborted. # # To enable this hook, rename this file to "prepare-commit-msg". # This hook includes three examples. The first one removes the # "# Please enter the commit message..." help message. # # The second includes the output of "git diff --name-status -r" # into the message, just before the "git status" output. It is # commented because it doesn't cope with --amend or with squashed # commits. # # The third example adds a Signed-off-by line to the message, that can # still be edited. This is rarely a good idea. COMMIT_MSG_FILE=$1 COMMIT_SOURCE=$2 SHA1=$3 /usr/bin/perl -i.bak -ne 'print unless(m/^. Please enter the commit message/..m/^#$/)' "$COMMIT_MSG_FILE" # case "$COMMIT_SOURCE,$SHA1" in # ,|template,) # /usr/bin/perl -i.bak -pe ' # print "\n" . `git diff --cached --name-status -r` # if /^#/ && $first++ == 0' "$COMMIT_MSG_FILE" ;; # *) ;; # esac # SOB=$(git var GIT_COMMITTER_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p') # git interpret-trailers --in-place --trailer "$SOB" "$COMMIT_MSG_FILE" # if test -z "$COMMIT_SOURCE" # then # /usr/bin/perl -i.bak -pe 'print "\n" if !$first_line++' "$COMMIT_MSG_FILE" # fi python3-aiosasl/.git/hooks/post-update.sample0000755000175000017500000000027513320664155022055 0ustar horazonthorazont#!/bin/sh # # An example hook script to prepare a packed repository for use over # dumb transports. # # To enable this hook, rename this file to "post-update". exec git update-server-info python3-aiosasl/.git/hooks/applypatch-msg.sample0000755000175000017500000000073613320664155022543 0ustar horazonthorazont#!/bin/sh # # An example hook script to check the commit log message taken by # applypatch from an e-mail message. # # The hook should exit with non-zero status after issuing an # appropriate message if it wants to stop the commit. The hook is # allowed to edit the commit message file. # # To enable this hook, rename this file to "applypatch-msg". . git-sh-setup commitmsg="$(git rev-parse --git-path hooks/commit-msg)" test -x "$commitmsg" && exec "$commitmsg" ${1+"$@"} : python3-aiosasl/.git/hooks/pre-rebase.sample0000755000175000017500000001144213320664155021633 0ustar horazonthorazont#!/bin/sh # # Copyright (c) 2006, 2008 Junio C Hamano # # The "pre-rebase" hook is run just before "git rebase" starts doing # its job, and can prevent the command from running by exiting with # non-zero status. # # The hook is called with the following parameters: # # $1 -- the upstream the series was forked from. # $2 -- the branch being rebased (or empty when rebasing the current branch). # # This sample shows how to prevent topic branches that are already # merged to 'next' branch from getting rebased, because allowing it # would result in rebasing already published history. publish=next basebranch="$1" if test "$#" = 2 then topic="refs/heads/$2" else topic=`git symbolic-ref HEAD` || exit 0 ;# we do not interrupt rebasing detached HEAD fi case "$topic" in refs/heads/??/*) ;; *) exit 0 ;# we do not interrupt others. ;; esac # Now we are dealing with a topic branch being rebased # on top of master. Is it OK to rebase it? # Does the topic really exist? git show-ref -q "$topic" || { echo >&2 "No such branch $topic" exit 1 } # Is topic fully merged to master? not_in_master=`git rev-list --pretty=oneline ^master "$topic"` if test -z "$not_in_master" then echo >&2 "$topic is fully merged to master; better remove it." exit 1 ;# we could allow it, but there is no point. fi # Is topic ever merged to next? If so you should not be rebasing it. only_next_1=`git rev-list ^master "^$topic" ${publish} | sort` only_next_2=`git rev-list ^master ${publish} | sort` if test "$only_next_1" = "$only_next_2" then not_in_topic=`git rev-list "^$topic" master` if test -z "$not_in_topic" then echo >&2 "$topic is already up to date with master" exit 1 ;# we could allow it, but there is no point. else exit 0 fi else not_in_next=`git rev-list --pretty=oneline ^${publish} "$topic"` /usr/bin/perl -e ' my $topic = $ARGV[0]; my $msg = "* $topic has commits already merged to public branch:\n"; my (%not_in_next) = map { /^([0-9a-f]+) /; ($1 => 1); } split(/\n/, $ARGV[1]); for my $elem (map { /^([0-9a-f]+) (.*)$/; [$1 => $2]; } split(/\n/, $ARGV[2])) { if (!exists $not_in_next{$elem->[0]}) { if ($msg) { print STDERR $msg; undef $msg; } print STDERR " $elem->[1]\n"; } } ' "$topic" "$not_in_next" "$not_in_master" exit 1 fi <<\DOC_END This sample hook safeguards topic branches that have been published from being rewound. The workflow assumed here is: * Once a topic branch forks from "master", "master" is never merged into it again (either directly or indirectly). * Once a topic branch is fully cooked and merged into "master", it is deleted. If you need to build on top of it to correct earlier mistakes, a new topic branch is created by forking at the tip of the "master". This is not strictly necessary, but it makes it easier to keep your history simple. * Whenever you need to test or publish your changes to topic branches, merge them into "next" branch. The script, being an example, hardcodes the publish branch name to be "next", but it is trivial to make it configurable via $GIT_DIR/config mechanism. With this workflow, you would want to know: (1) ... if a topic branch has ever been merged to "next". Young topic branches can have stupid mistakes you would rather clean up before publishing, and things that have not been merged into other branches can be easily rebased without affecting other people. But once it is published, you would not want to rewind it. (2) ... if a topic branch has been fully merged to "master". Then you can delete it. More importantly, you should not build on top of it -- other people may already want to change things related to the topic as patches against your "master", so if you need further changes, it is better to fork the topic (perhaps with the same name) afresh from the tip of "master". Let's look at this example: o---o---o---o---o---o---o---o---o---o "next" / / / / / a---a---b A / / / / / / / / c---c---c---c B / / / / \ / / / / b---b C \ / / / / / \ / ---o---o---o---o---o---o---o---o---o---o---o "master" A, B and C are topic branches. * A has one fix since it was merged up to "next". * B has finished. It has been fully merged up to "master" and "next", and is ready to be deleted. * C has not merged to "next" at all. We would want to allow C to be rebased, refuse A, and encourage B to be deleted. To compute (1): git rev-list ^master ^topic next git rev-list ^master next if these match, topic has not merged in next at all. To compute (2): git rev-list master..topic if this is empty, it is fully merged to "master". DOC_END python3-aiosasl/.git/hooks/pre-commit.sample0000755000175000017500000000314613320664155021664 0ustar horazonthorazont#!/bin/sh # # An example hook script to verify what is about to be committed. # Called by "git commit" with no arguments. The hook should # exit with non-zero status after issuing an appropriate message if # it wants to stop the commit. # # To enable this hook, rename this file to "pre-commit". if git rev-parse --verify HEAD >/dev/null 2>&1 then against=HEAD else # Initial commit: diff against an empty tree object against=$(git hash-object -t tree /dev/null) fi # If you want to allow non-ASCII filenames set this variable to true. allownonascii=$(git config --bool hooks.allownonascii) # Redirect output to stderr. exec 1>&2 # Cross platform projects tend to avoid non-ASCII filenames; prevent # them from being added to the repository. We exploit the fact that the # printable range starts at the space character and ends with tilde. if [ "$allownonascii" != "true" ] && # Note that the use of brackets around a tr range is ok here, (it's # even required, for portability to Solaris 10's /usr/bin/tr), since # the square bracket bytes happen to fall in the designated range. test $(git diff --cached --name-only --diff-filter=A -z $against | LC_ALL=C tr -d '[ -~]\0' | wc -c) != 0 then cat <<\EOF Error: Attempt to add a non-ASCII file name. This can cause problems if you want to work with people on other platforms. To be portable it is advisable to rename the file. If you know what you are doing you can disable this check using: git config hooks.allownonascii true EOF exit 1 fi # If there are whitespace errors, print the offending file names and fail. exec git diff-index --check --cached $against -- python3-aiosasl/.git/index0000644000175000017500000000277513320727700016314 0ustar horazonthorazontDIRC[Chn)[Chn)$1f:{Q\oMQ-k .gitignore[Chn)[Chn)eʈ|0Zd8bCOPYING.LESSER[Chn)[Chn)KM8Yy6.Yh˵ COPYING.gpl3[Chn)[Chn) '`E|XV0)#|LICENSES[Chn)[Chn) =m (U+SD MANIFEST.in[Chn)[Chn) !"+ `c;bZ s;NXJ\Makefile[Chn)[Chn) _~PQn2;YFO7Ylf README.rst[Chn)[Chn) WjSM2Wv6UaIaiosasl/__init__.py[Chn)T[Chn)T/IoBtAYj4aiosasl/stringprep.py[Chn)T[Chn)T>i eJlV¯aiosasl/version.py[Chn)T[Chn)T![/U!t udocs/.gitignore[Chn)T[Chn)Tyݾ,ʗhCmU< docs/Makefile[Chn)T[Chn)T"Ҷi Kh,q8qĕ docs/conf.py[Chn)T[Chn)TA?:"S?edocs/index.rst[Chn)T[Chn)TVaB,5$[ݵ3Esetup.py[Chn)T[Chn)TPOP-hȱ#58tests/test_aiosasl.py[Chn)T[Chn)TNCMItests/test_stringprep.pyTREEu17 3 P #a׋ gzX.docs4 0 8oxGs|Erm`tests2 0 'scO'{JUaiosasl3 0 UtOH=ɟ>CY"#/T0naܘ]python3-aiosasl/.git/config0000644000175000017500000000074113320726233016441 0ustar horazonthorazont[core] repositoryformatversion = 0 filemode = true bare = false logallrefupdates = true [remote "upstream"] url = https://github.com/horazont/aiosasl fetch = +refs/heads/*:refs/remotes/upstream/* [remote "origin"] url = git@salsa.debian.org:jssfr-guest/python3-aiosasl.git fetch = +refs/heads/*:refs/remotes/origin/* [branch "debian/master"] remote = origin merge = refs/heads/debian/master [branch "upstream/latest"] remote = origin merge = refs/heads/upstream/latest python3-aiosasl/.git/packed-refs0000644000175000017500000000120213320726202017345 0ustar horazonthorazont# pack-refs with: peeled fully-peeled sorted 6bc01fed36be5828bdbe52b0ef90d442321897de refs/tags/v0.1 ^04eb24c848f7c9e12a0a1253d6cd05e2da4e27a1 b3a38fea7655b776b2e2f15fd6f6ab0c3068e96f refs/tags/v0.1.1 ^fb175431865fade8909934b690efb70d2a168736 01820bd0e2584a7b8f3345c3bb05bee5fadf0425 refs/tags/v0.2 ^5ff33de1a3ba59dcd52efb524e4e4964c34b1fea de52b5dbee6c560640df8954140c0c8e01fd5174 refs/tags/v0.2.1 ^048fc96766436919c7404666b13b6abf8e11db7a 79a38c112da81f444987b27e77a5bd092ae923a2 refs/tags/v0.3.0 ^19b90f38b9bcd2ee6875b014f4b7763d7b6a5c06 dad89b50f250097f55623ca0243dbbc98fadce26 refs/tags/v0.3.1 ^9ed293d2bc28a61719ab06a3b742cf967a4b143f python3-aiosasl/.git/info/0000755000175000017500000000000013320664155016206 5ustar horazonthorazontpython3-aiosasl/.git/info/exclude0000644000175000017500000000036013320664155017561 0ustar horazonthorazont# git ls-files --others --exclude-from=.git/info/exclude # Lines that start with '#' are comments. # For a project mostly in C, the following would be a good set of # exclude patterns (uncomment them if you want to use them): # *.[oa] # *~ python3-aiosasl/.git/branches/0000755000175000017500000000000013320664155017040 5ustar horazonthorazontpython3-aiosasl/COPYING.gpl30000644000175000017500000010451313320664156016316 0ustar horazonthorazont GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. 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But first, please read . python3-aiosasl/aiosasl.egg-info/0000755000175000017500000000000013320676270017540 5ustar horazonthorazontpython3-aiosasl/aiosasl.egg-info/SOURCES.txt0000644000175000017500000000037513320726351021425 0ustar horazonthorazontCOPYING.LESSER COPYING.gpl3 LICENSES MANIFEST.in README.rst setup.py aiosasl/__init__.py aiosasl/stringprep.py aiosasl/version.py aiosasl.egg-info/PKG-INFO aiosasl.egg-info/SOURCES.txt aiosasl.egg-info/dependency_links.txt aiosasl.egg-info/top_level.txtpython3-aiosasl/aiosasl.egg-info/PKG-INFO0000644000175000017500000000332413320726351020633 0ustar horazonthorazontMetadata-Version: 1.1 Name: aiosasl Version: 0.3.1 Summary: Pure-python, protocol agnostic SASL library for asyncio Home-page: https://github.com/horazont/aiosasl Author: Jonas Wielicki Author-email: jonas@wielicki.name License: GPL Description: ``aiosasl``, pure python generic asyncio SASL library ##################################################### ``aiosasl`` provides a generic, asyncio-based SASL library. It can be used with any protocol, provided the neccessary interface code is provided by the application or protocol implementation. Dependencies ------------ * Python ≥ 3.4 (or Python = 3.3 with tulip) Supported SASL mechanisms ------------------------- * ``PLAIN``: authenticate with plaintext password (RFC 4616) * ``ANONYMOUS``: anonymous "authentication" (RFC 4505) * ``SCRAM-SHA-1``, ``SCRAM-SHA-224``, , ``SCRAM-SHA-512``, ``SCRAM-SHA-384``, and ``SCRAM-SHA-256``: Salted Challenge Response Authentication (RFC 5802) Documentation ------------- Official documentation can be built with sphinx and is available online `on our servers `_. Keywords: asyncio sasl library Platform: UNKNOWN Classifier: Development Status :: 3 - Alpha Classifier: Intended Audience :: Developers Classifier: Programming Language :: Python :: 3 :: Only Classifier: Programming Language :: Python :: 3.3 Classifier: Programming Language :: Python :: 3.4 Classifier: Programming Language :: Python :: 3.5 Classifier: License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+) python3-aiosasl/aiosasl.egg-info/top_level.txt0000644000175000017500000000001013320726351022255 0ustar horazonthorazontaiosasl python3-aiosasl/aiosasl.egg-info/dependency_links.txt0000644000175000017500000000000113320726351023602 0ustar horazonthorazont python3-aiosasl/.pybuild/0000755000175000017500000000000013320726347016142 5ustar horazonthorazontpython3-aiosasl/.pybuild/cpython3_3.6/0000755000175000017500000000000013320726351020272 5ustar horazonthorazontpython3-aiosasl/.pybuild/cpython3_3.6/build/0000755000175000017500000000000013320726351021371 5ustar horazonthorazontpython3-aiosasl/.pybuild/cpython3_3.6/build/aiosasl/0000755000175000017500000000000013320726350023023 5ustar horazonthorazontpython3-aiosasl/.pybuild/cpython3_3.6/build/aiosasl/__init__.py0000644000175000017500000005366213320664156025155 0ustar horazonthorazont######################################################################## # File name: __init__.py # This file is part of: aiosasl # # LICENSE # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this program. If not, see # . # ######################################################################## """ Using SASL in a protocol ======================== To make use of SASL over an existing protocol, you first need to subclass and implement :class:`SASLInterface`. The usable mechanisms need to be detected by your application using the protocol over which to implement SASL. This is generally protocol-specific. For example, XMPP uses stream features to announce which SASL mechanisms are supported by the server. When a set of SASL mechanism strings has been obtained by the server (let us call a set with the mechanism strings ``sasl_mechanisms``), the mechanisms supported by your application (a list of :class:`SASLMechanism` subclass instances, let us call it ``mechanism_impls``) can be queried for support:: # intf = for impl in mechanism_impl: token = impl.any_supported(sasl_mechanisms) if token is not None: sm = aiosasl.SASLStateMachine(intf) try: yield from impl.authenticate(sm, token) except aiosasl.AuthenticationFailure: # handle authentication failure # it is generally not sensible to re-try with other mechanisms except aiosasl.SASLFailure: # this is a protocol problem, it is sensible to re-try other # mechanisms else: # authentication was successful! The instances for the mechanisms can be re-used; they do not save any state, the state is held by :class:`SASLStateMachine` instead. The different mechanisms require different arguments (the password-based mechanisms generally require a callback which provides credentials). The mechanisms which are currently supported by :mod:`aiosasl` are summarised below: .. autosummary:: PLAIN SCRAM Interface for protocols using SASL ================================== To implement SASL on an existing protocol, you need to subclass :class:`SASLInterface` and implement the abstract methods: .. autoclass:: SASLInterface SASL mechansims =============== .. autoclass:: PLAIN .. autoclass:: SCRAM .. autoclass:: ANONYMOUS Base class ---------- .. autoclass:: SASLMechanism SASL state machine ================== .. autoclass:: SASLStateMachine Exception classes ================= .. autoclass:: SASLError .. autoclass:: SASLFailure .. autoclass:: AuthenticationFailure Version information =================== .. autodata:: __version__ .. autodata:: version_info """ import abc import asyncio import base64 import functools import hashlib import hmac import itertools import logging import operator import random import time from aiosasl.stringprep import saslprep, trace from .version import version, __version__, version_info # NOQA logger = logging.getLogger(__name__) #: The imported :mod:`aiosasl` version as a tuple. #: #: The components of the tuple are, in order: `major version`, `minor version`, #: `patch level`, and `pre-release identifier`. version_info = version_info #: The imported :mod:`aiosasl` version as a string. #: #: The version number is dot-separated; in pre-release or development versions, #: the version number is followed by a hypen-separated pre-release identifier. __version__ = __version__ _system_random = random.SystemRandom() try: from hashlib import pbkdf2_hmac as pbkdf2 except ImportError: # this is untested if you have pbkdf2_hmac def pbkdf2(hashfun_name, input_data, salt, iterations, dklen=None): """ Derivate a key from a password. `input_data` is taken as the bytes object resembling the password (or other input). `hashfun` must be a callable returning a :mod:`hashlib`-compatible hash function. `salt` is the salt to be used in the PBKDF2 run, `iterations` the count of iterations. `dklen` is the length in bytes of the key to be derived. Return the derived key as :class:`bytes` object. """ if dklen is not None and dklen <= 0: raise ValueError("Invalid length for derived key: {}".format( dklen)) hashfun = lambda: hashlib.new(hashfun_name) hlen = hashfun().digest_size if dklen is None: dklen = hlen block_count = (dklen + (hlen - 1)) // hlen mac_base = hmac.new(input_data, None, hashfun) def do_hmac(data): mac = mac_base.copy() mac.update(data) return mac.digest() def calc_block(i): u_prev = do_hmac(salt + i.to_bytes(4, "big")) u_accum = u_prev for k in range(1, iterations): u_curr = do_hmac(u_prev) u_accum = bytes(itertools.starmap( operator.xor, zip(u_accum, u_curr))) u_prev = u_curr return u_accum result = b"".join( calc_block(i) for i in range(1, block_count + 1)) return result[:dklen] class SASLError(Exception): """ Base class for a SASL related error. `opaque_error` may be anything but :data:`None` which helps your application re-identify the error at the outer layers. `kind` is a string which helps identifying the class of the error; this is set implicitly by the constructors of :class:`SASLFailure` and :class:`AuthenticationFailure`, which you are encouraged to use. `text` may be a human-readable string describing the error condition in more detail. `opaque_error` is set to :data:`None` by :class:`SASLMechanism` implementations to indicate errors which originate from the local mechanism implementation. .. attribute:: opaque_error The value passed to the respective constructor argument. .. attribute:: text The value passed to the respective constructor argument. """ def __init__(self, opaque_error, kind, text=None): msg = "{}: {}".format(opaque_error, kind) if text: msg += ": {}".format(text) super().__init__(msg) self.opaque_error = opaque_error self.text = text class SASLFailure(SASLError): """ A SASL protocol failure which is unrelated to the credentials passed. This may be raised by :class:`SASLInterface` methods. """ def __init__(self, opaque_error, text=None): super().__init__(opaque_error, "SASL failure", text=text) def promote_to_authentication_failure(self): return AuthenticationFailure( self.opaque_error, self.text) class AuthenticationFailure(SASLError): """ A SASL error which indicates that the provided credentials are invalid. This may be raised by :class:`SASLInterface` methods. """ def __init__(self, opaque_error, text=None): super().__init__(opaque_error, "authentication failed", text=text) class SASLInterface(metaclass=abc.ABCMeta): """ This class serves as an abstract base class for interfaces for use with :class:`SASLStateMachine`. Specific protocols using SASL (such as XMPP, IMAP or SMTP) can subclass this interface to implement SASL on top of the existing protocol. The interface class does not need to implement any state checking. State checking is done by the :class:`SASLStateMachine`. The following interface must be implemented by subclasses. The return values of the methods below are tuples of the following form: * ``("success", payload)`` -- After successful authentication, success is returned. Depending on the mechanism, a payload (as :class:`bytes` object) may be attached to the result, otherwise, ``payload`` is :data:`None`. * ``("challenge", payload)`` -- A challenge was sent by the server in reply to the previous command. * ``("failure", None)`` -- This is only ever returned by :meth:`abort`. All other methods **must** raise errors as :class:`SASLFailure`. .. automethod:: initiate .. automethod:: respond .. automethod:: abort """ @abc.abstractmethod @asyncio.coroutine def initiate(self, mechanism, payload=None): """ Send a SASL initiation request for the given `mechanism`. Depending on the `mechanism`, an initial `payload` *may* be given. The `payload` is then a :class:`bytes` object which needs to be passed as initial payload during the initiation request. Wait for a reply by the peer and return the reply as a next-state tuple in the format documented at :class:`SASLInterface`. """ @abc.abstractmethod @asyncio.coroutine def respond(self, payload): """ Send a response to a challenge. The `payload` is a :class:`bytes` object which is to be sent as response. Wait for a reply by the peer and return the reply as a next-state tuple in the format documented at :class:`SASLInterface`. """ @abc.abstractmethod @asyncio.coroutine def abort(self): """ Abort the authentication. The result is either the failure tuple (``("failure", None)``) or a :class:`SASLFailure` exception if the response from the peer did not indicate abortion (e.g. another error was returned by the peer or the peer indicated success). """ class SASLStateMachine: """ A state machine to reduce code duplication during SASL handshake. The state methods change the state and return the next client state of the SASL handshake, optionally with server-supplied payload. Note that, with the notable exception of :meth:`abort`, ``failure`` states are never returned but thrown as :class:`SASLFailure` instead. The initial state is never returned. """ def __init__(self, interface): super().__init__() self.interface = interface self._state = "initial" @asyncio.coroutine def initiate(self, mechanism, payload=None): """ Initiate the SASL handshake and advertise the use of the given `mechanism`. If `payload` is not :data:`None`, it will be base64 encoded and sent as initial client response along with the ```` element. Return the next state of the state machine as tuple (see :class:`SASLStateMachine` for details). """ if self._state != "initial": raise RuntimeError("initiate has already been called") try: next_state, payload = yield from self.interface.initiate( mechanism, payload=payload) except SASLFailure: self._state = "failure" raise self._state = next_state return next_state, payload @asyncio.coroutine def response(self, payload): """ Send a response to the previously received challenge, with the given `payload`. The payload is encoded using base64 and transmitted to the server. Return the next state of the state machine as tuple (see :class:`SASLStateMachine` for details). """ if self._state != "challenge": raise RuntimeError( "no challenge has been made or negotiation failed") try: next_state, payload = yield from self.interface.respond(payload) except SASLFailure: self._state = "failure" raise self._state = next_state return next_state, payload @asyncio.coroutine def abort(self): """ Abort an initiated SASL authentication process. The expected result state is ``failure``. """ if self._state == "initial": raise RuntimeError("SASL authentication hasn't started yet") try: return (yield from self.interface.abort()) finally: self._state = "failure" class SASLMechanism(metaclass=abc.ABCMeta): """ Implementation of a SASL mechanism. Two methods must be implemented by subclasses: .. automethod:: any_supported .. automethod:: authenticate .. note:: Administrative note Patches for new SASL mechanisms are welcome! """ @abc.abstractclassmethod def any_supported(cls, mechanisms): """ Determine whether this class can perform any SASL mechanism in the set of strings ``mechanisms``. If the class cannot perform any of the SASL mechanisms in ``mechanisms``, it must return :data:`None`. Otherwise, it must return a non-:data:`None` value. Applications must not assign any meaning to any value (except that :data:`None` is a sure indicator that the class cannot perform any of the listed mechanisms) and must not alter any value returned by this function. Note that even :data:`False` indicates success! The return value must be passed as second argument to :meth:`authenticate`. :meth:`authenticate` must not be called with a :data:`None` value. """ @asyncio.coroutine @abc.abstractmethod def authenticate(self, sm, token): """ Execute the mechanism identified by `token` (the non-:data:`None` value which has been returned by :meth:`any_supported` before) using the given :class:`SASLStateMachine` `sm`. If authentication fails, an appropriate exception is raised (:class:`AuthenticationFailure`). If the authentication fails for a reason unrelated to credentials, :class:`SASLFailure` is raised. """ class PLAIN(SASLMechanism): """ The password-based ``PLAIN`` SASL mechanism (see :rfc:`4616`). .. warning:: This is generally unsafe over unencrypted connections and should not be used there. Exclusion of the ``PLAIN`` mechanism over unsafe connections is out of scope for :mod:`aiosasl` and needs to be handled by the protocol implementation! `credential_provider` must be coroutine which returns a ``(user, password)`` tuple. """ def __init__(self, credential_provider): super().__init__() self._credential_provider = credential_provider @classmethod def any_supported(cls, mechanisms): if "PLAIN" in mechanisms: return "PLAIN" return None @asyncio.coroutine def authenticate(self, sm, mechanism): logger.info("attempting PLAIN mechanism") username, password = yield from self._credential_provider() username = saslprep(username).encode("utf8") password = saslprep(password).encode("utf8") state, _ = yield from sm.initiate( mechanism="PLAIN", payload=b"\0" + username + b"\0" + password) if state != "success": raise SASLFailure( None, text="SASL protocol violation") return True class SCRAM(SASLMechanism): """ The password-based SCRAM (non-PLUS) SASL mechanism (see :rfc:`5802`). .. note:: As "non-PLUS" suggests, this does not support channel binding. Patches welcome. It may make sense to implement the -PLUS mechanisms as separate :class:`SASLMechanism` subclass or at least allow disabling them via an optional argument (defaulting to disabled). Channel binding may not be reliably available in all cases. `credential_provider` must be coroutine which returns a ``(user, password)`` tuple. """ def __init__(self, credential_provider): super().__init__() self._credential_provider = credential_provider self.nonce_length = 15 _supported_hashalgos = { # the second argument is for preference ordering (highest first) # if anyone has a better hash ordering suggestion, I’m open for it # a value of 1 is added if the -PLUS variant is used # -- JWI "SHA-1": ("sha1", 1), "SHA-224": ("sha224", 224), "SHA-512": ("sha512", 512), "SHA-384": ("sha384", 384), "SHA-256": ("sha256", 256), } @classmethod def any_supported(cls, mechanisms): supported = [] for mechanism in mechanisms: if not mechanism.startswith("SCRAM-"): continue if mechanism.endswith("-PLUS"): # channel binding is not supported continue hashfun_key = mechanism[6:] try: hashfun_name, quality = cls._supported_hashalgos[hashfun_key] except KeyError: continue supported.append(((1, quality), (mechanism, hashfun_name,))) if not supported: return None supported.sort() return supported.pop()[1] @classmethod def parse_message(cls, msg): parts = ( part for part in msg.split(b",") if part) for part in parts: key, _, value = part.partition(b"=") if len(key) > 1 or key == b"m": raise Exception("SCRAM protocol violation / unknown " "future extension") if key == b"n" or key == b"a": value = value.replace(b"=2C", b",").replace(b"=3D", b"=") yield key, value @asyncio.coroutine def authenticate(self, sm, token): mechanism, hashfun_name, = token logger.info("attempting %s mechanism (using %s hashfun)", mechanism, hashfun_name) # this is pretty much a verbatim implementation of RFC 5802. hashfun_factory = functools.partial(hashlib.new, hashfun_name) digest_size = hashfun_factory().digest_size # we don’t support channel binding gs2_header = b"n,," username, password = yield from self._credential_provider() username = saslprep(username).encode("utf8") password = saslprep(password).encode("utf8") our_nonce = base64.b64encode(_system_random.getrandbits( self.nonce_length * 8 ).to_bytes( self.nonce_length, "little" )) auth_message = b"n=" + username + b",r=" + our_nonce _, payload = yield from sm.initiate( mechanism, gs2_header + auth_message) auth_message += b"," + payload payload = dict(self.parse_message(payload)) try: iteration_count = int(payload[b"i"]) nonce = payload[b"r"] salt = base64.b64decode(payload[b"s"]) except (ValueError, KeyError): yield from sm.abort() raise SASLFailure( None, text="malformed server message: {!r}".format(payload)) if not nonce.startswith(our_nonce): yield from sm.abort() raise SASLFailure( None, text="server nonce doesn't fit our nonce") t0 = time.time() salted_password = pbkdf2( hashfun_name, password, salt, iteration_count) logger.debug("pbkdf2 timing: %f seconds", time.time() - t0) client_key = hmac.new( salted_password, b"Client Key", hashfun_factory).digest() stored_key = hashfun_factory(client_key).digest() reply = b"c=" + base64.b64encode(b"n,,") + b",r=" + nonce auth_message += b"," + reply client_proof = ( int.from_bytes( hmac.new( stored_key, auth_message, hashfun_factory).digest(), "big") ^ int.from_bytes(client_key, "big")).to_bytes(digest_size, "big") logger.debug("response generation time: %f seconds", time.time() - t0) try: state, payload = yield from sm.response( reply + b",p=" + base64.b64encode(client_proof) ) except SASLFailure as err: raise err.promote_to_authentication_failure() from None if state != "success": raise SASLFailure( "malformed-request", text="SCRAM protocol violation") server_signature = hmac.new( hmac.new( salted_password, b"Server Key", hashfun_factory).digest(), auth_message, hashfun_factory).digest() payload = dict(self.parse_message(payload)) if base64.b64decode(payload[b"v"]) != server_signature: raise SASLFailure( None, "authentication successful, but server signature invalid") return True class ANONYMOUS(SASLMechanism): """ The ANONYMOUS SASL mechanism (see :rfc:`4505`). .. versionadded:: 0.3 """ def __init__(self, token): super().__init__() self._token = trace(token).encode("utf-8") @classmethod def any_supported(self, mechanisms): if "ANONYMOUS" in mechanisms: return "ANONYMOUS" return None @asyncio.coroutine def authenticate(self, sm, mechanism): logger.info("attempting ANONYMOUS mechanism") state, _ = yield from sm.initiate( mechanism="ANONYMOUS", payload=self._token ) if state != "success": raise SASLFailure( None, text="SASL protocol violation") return True python3-aiosasl/.pybuild/cpython3_3.6/build/aiosasl/__pycache__/0000755000175000017500000000000013320726350025233 5ustar horazonthorazontpython3-aiosasl/.pybuild/cpython3_3.6/build/aiosasl/__pycache__/stringprep.cpython-36.pyc0000644000175000017500000001110513320726350032054 0ustar horazonthorazont3 nhC[/@srdZddlZddlZedZddZddZdd Zd d Zd d Z ddZ ddZ ddZ dddZ ddZdS)z Stringprep support ################## This module implements the SASLprep (`RFC 4013`_) stringprep profile. .. autofunction:: saslprep .. _RFC 4013: https://tools.ietf.org/html/rfc4013 Nz"&'/:<>@cCstj|dkS)NRAL)rr) unicodedata bidirectional)cr]/home/horazont/Projects/deb/python3-aiosasl/.pybuild/cpython3_3.6/build/aiosasl/stringprep.py is_RandALCat(sr cCstj|dkS)NL)rr)rrrris_LCat,sr cs,x&|D]tfdd|DrSqWdS)as Perform a check against the table predicates in `tables`. `tables` must be a reusable iterable containing characteristic functions of character sets, that is, functions which return :data:`True` if the character is in the table. The function returns the first character occuring in any of the tables or :data:`None` if no character matches. c3s|]}|VqdS)Nr).0Zin_table)rrr <sz'check_against_tables..N)any)charsZtablesr)rrcheck_against_tables0s rcCs"ttjddj||dd<dS)zz Perform the stringprep normalization. Operates in-place on a list of unicode characters provided in `chars`. ZNFKCN)listr normalizejoin)rrrrdo_normalizationBsrcCsh|sdStdd|D}|s"dStdd|D}|r@tdt|d s\t|d  rdtddS) z| Check proper bidirectionality as per stringprep. Operates on a list of unicode characters provided in `chars`. Ncss|]}t|VqdS)N)r )r rrrrr Wszcheck_bidi..css|]}t|VqdS)N)r )r rrrrr [sz7L and R/AL characters must not occur in the same stringrz3R/AL string must start and end with R/AL character.)r ValueErrorr )rZ has_RandALCatZhas_LCatrrr check_bidiJsrcCs(t||}|dk r$tdjt|dS)z Check against prohibited output, by checking whether any of the characters from `chars` are in any of the `bad_tables`. Operates in-place on a list of code points from `chars`. Nz2Input contains invalid unicode codepoint: U+{:04x})rrformatord)r bad_tablesviolatorrrrcheck_prohibited_outputds rcCs0tjf}t||}|dk r,tdjt|dS)z Check that `chars` does not contain any unassigned code points as per the given list of `bad_tables`. Operates on a list of unicode code points provided in `chars`. Nz.Input contains unassigned code point: U+{:04x}) stringprep in_table_a1rrrr)rrrrrrcheck_unassignedqs  r!cCsPd}xF|t|krJ||}tj|r.d||<ntj|r@||=q|d7}qWdS)z Perform the stringprep mapping step of SASLprep. Operates in-place on a list of unicode characters provided in `chars`. r rN)lenr in_table_c12Z in_table_b1)rirrrr_saslprep_do_mappings   r&Fc Csnt|}t|t|t|tjtjtjtjtj tj tj tj tj tjf t||sdt|tjfdj|S)z Process the given `string` using the SASLprep profile. In the error cases defined in `RFC 3454`_ (stringprep), a :class:`ValueError` is raised. r)rr&rrrr$ in_table_c21 in_table_c22 in_table_c3 in_table_c4 in_table_c5 in_table_c6Z in_table_c7 in_table_c8 in_table_c9rr!r r)stringZallow_unassignedrrrrsaslpreps*  r0c Cs6t|tjtjtjtjtjtjtjtj ft ||S)zC Implement the ``trace`` profile specified in :rfc:`4505`. ) rrr'r(r)r*r+r,r-r.r)r/rrrtraces r1)F)__doc__rr frozensetZ_nodeprep_prohibitedr r rrrrr!r&r0r1rrrr s  %python3-aiosasl/.pybuild/cpython3_3.6/build/aiosasl/__pycache__/version.cpython-36.pyc0000644000175000017500000000050513320726350031346 0ustar horazonthorazont3 nhC[>@s<dZdjeeeddedr.dedndZeZdS)N.-)rrrN) version_infojoinmapstr __version__versionr r Z/home/horazont/Projects/deb/python3-aiosasl/.pybuild/cpython3_3.6/build/aiosasl/version.pyspython3-aiosasl/.pybuild/cpython3_3.6/build/aiosasl/__pycache__/__init__.cpython-36.pyc0000644000175000017500000005035113320726350031424 0ustar horazonthorazont3 nhC[W @sddZddlZddlZddlZddlZddlZddlZddlZddlZddl Z ddl Z ddl Z ddl m Z mZddlmZmZmZejeZeZeZe jZyddlmZWnek rdddZYnXGd d d eZGd d d eZGd ddeZGdddejdZGdddZ GdddejdZ!Gddde!Z"Gddde!Z#Gddde!Z$dS)a Using SASL in a protocol ======================== To make use of SASL over an existing protocol, you first need to subclass and implement :class:`SASLInterface`. The usable mechanisms need to be detected by your application using the protocol over which to implement SASL. This is generally protocol-specific. For example, XMPP uses stream features to announce which SASL mechanisms are supported by the server. When a set of SASL mechanism strings has been obtained by the server (let us call a set with the mechanism strings ``sasl_mechanisms``), the mechanisms supported by your application (a list of :class:`SASLMechanism` subclass instances, let us call it ``mechanism_impls``) can be queried for support:: # intf = for impl in mechanism_impl: token = impl.any_supported(sasl_mechanisms) if token is not None: sm = aiosasl.SASLStateMachine(intf) try: yield from impl.authenticate(sm, token) except aiosasl.AuthenticationFailure: # handle authentication failure # it is generally not sensible to re-try with other mechanisms except aiosasl.SASLFailure: # this is a protocol problem, it is sensible to re-try other # mechanisms else: # authentication was successful! The instances for the mechanisms can be re-used; they do not save any state, the state is held by :class:`SASLStateMachine` instead. The different mechanisms require different arguments (the password-based mechanisms generally require a callback which provides credentials). The mechanisms which are currently supported by :mod:`aiosasl` are summarised below: .. autosummary:: PLAIN SCRAM Interface for protocols using SASL ================================== To implement SASL on an existing protocol, you need to subclass :class:`SASLInterface` and implement the abstract methods: .. autoclass:: SASLInterface SASL mechansims =============== .. autoclass:: PLAIN .. autoclass:: SCRAM .. autoclass:: ANONYMOUS Base class ---------- .. autoclass:: SASLMechanism SASL state machine ================== .. autoclass:: SASLStateMachine Exception classes ================= .. autoclass:: SASLError .. autoclass:: SASLFailure .. autoclass:: AuthenticationFailure Version information =================== .. autodata:: __version__ .. autodata:: version_info N)saslpreptrace)version __version__ version_info) pbkdf2_hmacc s|dk r|dkrtdj|fdd}|j}|dkr>|}||d|}tj|d|fddfd d d jfd d td|dD}|d|S)a Derivate a key from a password. `input_data` is taken as the bytes object resembling the password (or other input). `hashfun` must be a callable returning a :mod:`hashlib`-compatible hash function. `salt` is the salt to be used in the PBKDF2 run, `iterations` the count of iterations. `dklen` is the length in bytes of the key to be derived. Return the derived key as :class:`bytes` object. Nrz"Invalid length for derived key: {}cs tjS)N)hashlibnew) hashfun_namer [/home/horazont/Projects/deb/python3-aiosasl/.pybuild/cpython3_3.6/build/aiosasl/__init__.pyszpbkdf2..rcsj}|j||jS)N)copyupdatedigest)dataZmac)mac_baser r do_hmacs zpbkdf2..do_hmaccsT|jdd}|}x6tdD](}|}ttjtjt||}|}q$W|S)Nbigr)to_bytesrangebytes itertoolsstarmapoperatorxorzip)iZu_prevZu_accumkZu_curr)r iterationssaltr r calc_blockszpbkdf2..calc_blockc3s|]}|VqdS)Nr ).0r)r#r r szpbkdf2..) ValueErrorformat digest_sizehmacr joinr) r Z input_datar"r!ZdklenZhashfunZhlenZ block_countresultr )r#rr r!rr"r pbkdf2s     r-cs"eZdZdZdfdd ZZS) SASLErroraE Base class for a SASL related error. `opaque_error` may be anything but :data:`None` which helps your application re-identify the error at the outer layers. `kind` is a string which helps identifying the class of the error; this is set implicitly by the constructors of :class:`SASLFailure` and :class:`AuthenticationFailure`, which you are encouraged to use. `text` may be a human-readable string describing the error condition in more detail. `opaque_error` is set to :data:`None` by :class:`SASLMechanism` implementations to indicate errors which originate from the local mechanism implementation. .. attribute:: opaque_error The value passed to the respective constructor argument. .. attribute:: text The value passed to the respective constructor argument. Ncs:dj||}|r|dj|7}tj|||_||_dS)Nz{}: {}z: {})r(super__init__ opaque_errortext)selfr1kindr2msg) __class__r r r0s   zSASLError.__init__)N)__name__ __module__ __qualname____doc__r0 __classcell__r r )r6r r.sr.cs*eZdZdZdfdd ZddZZS) SASLFailurez A SASL protocol failure which is unrelated to the credentials passed. This may be raised by :class:`SASLInterface` methods. Ncstj|d|ddS)Nz SASL failure)r2)r/r0)r3r1r2)r6r r r0szSASLFailure.__init__cCst|j|jS)N)AuthenticationFailurer1r2)r3r r r !promote_to_authentication_failuresz-SASLFailure.promote_to_authentication_failure)N)r7r8r9r:r0r>r;r r )r6r r<sr<cs"eZdZdZdfdd ZZS)r=z A SASL error which indicates that the provided credentials are invalid. This may be raised by :class:`SASLInterface` methods. Ncstj|d|ddS)Nzauthentication failed)r2)r/r0)r3r1r2)r6r r r0szAuthenticationFailure.__init__)N)r7r8r9r:r0r;r r )r6r r=sr=c@sNeZdZdZejejd ddZejejddZ ejejddZ dS) SASLInterfaceab This class serves as an abstract base class for interfaces for use with :class:`SASLStateMachine`. Specific protocols using SASL (such as XMPP, IMAP or SMTP) can subclass this interface to implement SASL on top of the existing protocol. The interface class does not need to implement any state checking. State checking is done by the :class:`SASLStateMachine`. The following interface must be implemented by subclasses. The return values of the methods below are tuples of the following form: * ``("success", payload)`` -- After successful authentication, success is returned. Depending on the mechanism, a payload (as :class:`bytes` object) may be attached to the result, otherwise, ``payload`` is :data:`None`. * ``("challenge", payload)`` -- A challenge was sent by the server in reply to the previous command. * ``("failure", None)`` -- This is only ever returned by :meth:`abort`. All other methods **must** raise errors as :class:`SASLFailure`. .. automethod:: initiate .. automethod:: respond .. automethod:: abort NcCsdS)a Send a SASL initiation request for the given `mechanism`. Depending on the `mechanism`, an initial `payload` *may* be given. The `payload` is then a :class:`bytes` object which needs to be passed as initial payload during the initiation request. Wait for a reply by the peer and return the reply as a next-state tuple in the format documented at :class:`SASLInterface`. Nr )r3 mechanismpayloadr r r initiate"szSASLInterface.initiatecCsdS)a Send a response to a challenge. The `payload` is a :class:`bytes` object which is to be sent as response. Wait for a reply by the peer and return the reply as a next-state tuple in the format documented at :class:`SASLInterface`. Nr )r3rAr r r respond/szSASLInterface.respondcCsdS)a+ Abort the authentication. The result is either the failure tuple (``("failure", None)``) or a :class:`SASLFailure` exception if the response from the peer did not indicate abortion (e.g. another error was returned by the peer or the peer indicated success). Nr )r3r r r abort:szSASLInterface.abort)N) r7r8r9r:abcabstractmethodasyncio coroutinerBrCrDr r r r r?s  r?) metaclasscsLeZdZdZfddZejd ddZejddZejd d Z Z S) SASLStateMachinea A state machine to reduce code duplication during SASL handshake. The state methods change the state and return the next client state of the SASL handshake, optionally with server-supplied payload. Note that, with the notable exception of :meth:`abort`, ``failure`` states are never returned but thrown as :class:`SASLFailure` instead. The initial state is never returned. cstj||_d|_dS)Ninitial)r/r0 interface_state)r3rL)r6r r r0Rs zSASLStateMachine.__init__Nc cs\|jdkrtdy|jj||dEdH\}}Wntk rLd|_YnX||_||fS)al Initiate the SASL handshake and advertise the use of the given `mechanism`. If `payload` is not :data:`None`, it will be base64 encoded and sent as initial client response along with the ```` element. Return the next state of the state machine as tuple (see :class:`SASLStateMachine` for details). rKz initiate has already been called)rANfailure)rM RuntimeErrorrLrBr<)r3r@rA next_stater r r rBWs zSASLStateMachine.initiatec csX|jdkrtdy|jj|EdH\}}Wntk rHd|_YnX||_||fS)a& Send a response to the previously received challenge, with the given `payload`. The payload is encoded using base64 and transmitted to the server. Return the next state of the state machine as tuple (see :class:`SASLStateMachine` for details). Z challengez0no challenge has been made or negotiation failedNrN)rMrOrLrCr<)r3rArPr r r responseqs zSASLStateMachine.responsec cs0|jdkrtdz|jjEdHSd|_XdS)zs Abort an initiated SASL authentication process. The expected result state is ``failure``. rKz&SASL authentication hasn't started yetNrN)rMrOrLrD)r3r r r rDs  zSASLStateMachine.abort)N) r7r8r9r:r0rGrHrBrQrDr;r r )r6r rJEs    rJc@s2eZdZdZejddZejej ddZ dS) SASLMechanismz Implementation of a SASL mechanism. Two methods must be implemented by subclasses: .. automethod:: any_supported .. automethod:: authenticate .. note:: Administrative note Patches for new SASL mechanisms are welcome! cCsdS)a Determine whether this class can perform any SASL mechanism in the set of strings ``mechanisms``. If the class cannot perform any of the SASL mechanisms in ``mechanisms``, it must return :data:`None`. Otherwise, it must return a non-:data:`None` value. Applications must not assign any meaning to any value (except that :data:`None` is a sure indicator that the class cannot perform any of the listed mechanisms) and must not alter any value returned by this function. Note that even :data:`False` indicates success! The return value must be passed as second argument to :meth:`authenticate`. :meth:`authenticate` must not be called with a :data:`None` value. Nr )cls mechanismsr r r any_supportedszSASLMechanism.any_supportedcCsdS)a Execute the mechanism identified by `token` (the non-:data:`None` value which has been returned by :meth:`any_supported` before) using the given :class:`SASLStateMachine` `sm`. If authentication fails, an appropriate exception is raised (:class:`AuthenticationFailure`). If the authentication fails for a reason unrelated to credentials, :class:`SASLFailure` is raised. Nr )r3smtokenr r r authenticateszSASLMechanism.authenticateN) r7r8r9r:rEabstractclassmethodrUrGrHrFrXr r r r rRs rRcs:eZdZdZfddZeddZejddZ Z S)PLAINa The password-based ``PLAIN`` SASL mechanism (see :rfc:`4616`). .. warning:: This is generally unsafe over unencrypted connections and should not be used there. 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Channel binding may not be reliably available in all cases. `credential_provider` must be coroutine which returns a ``(user, password)`` tuple. cstj||_d|_dS)N)r/r0r[ nonce_length)r3r\)r6r r r0s zSCRAM.__init__sha1rsha224sha512sha384sha256)zSHA-1zSHA-224zSHA-512zSHA-384zSHA-256c Csg}xp|D]h}|jdsq |jdr&q |dd}y|j|\}}Wntk rZw YnX|jd|f||ffq W|s~dS|j|jdS)NzSCRAM-z-PLUSr) startswithendswith_supported_hashalgosKeyErrorappendsortpop)rSrTZ supportedr@Z hashfun_keyr Zqualityr r r rUs     zSCRAM.any_supportedccsdd|jdD}xf|D]^}|jd\}}}t|dksB|dkrJtd|dksZ|d krn|jd djd d}||fVqWdS) Ncss|]}|r|VqdS)Nr )r%partr r r r&2sz&SCRAM.parse_message..,=rmz3SCRAM protocol violation / unknown future extensionnas=2Cs=3D)split partitionlen Exceptionreplace)rSr5partsr|keyrfvaluer r r parse_message/s zSCRAM.parse_messageccs|\}}tjd||tjtj|}|j}d}|jEdH\}} t|j d}t| j d} t j t j |jdj|jd} d|d| } |j||| EdH\} } | d| 7} t|j| } y&t| d }| d }t j| d }Wn:ttfk r"|jEdHtdd j| d YnX|j| sJ|jEdHtddd tj}t|| ||}tjdtj|tj|d|j}||j}dt j dd|}| d|7} tj tj|| |jdtj |dAj|d}tjdtj|y&|j!|dt j |EdH\}} Wn.tk rJ}z|j"dWYdd}~XnX|dkrbtddd tjtj|d|j| |j}t|j| } t j| d|krtdddS)Nz*attempting %s mechanism (using %s hashfun)sn,,r]littlesn=s,r=r}irszmalformed server message: {!r})r2z"server nonce doesn't fit our noncezpbkdf2 timing: %f secondss Client Keysc=rz$response generation time: %f secondss,p=r_zmalformed-requestzSCRAM protocol violations Server Keyvz7authentication successful, but server signature invalidT)#r`ra functoolspartialr r r)r[rrbbase64Z b64encode_system_randomZ getrandbitsrjrrBdictrintZ b64decoder'rxrDr<r(rutimer-debugr*r from_bytesrQr>)r3rVrWr@r Zhashfun_factoryr)Z gs2_headerrcrdZ our_nonceZ auth_messagerfrAZiteration_countZnoncer"Zt0Zsalted_passwordZ client_keyZ stored_keyZreplyZ client_proofreerrZserver_signaturer r r rX@s        "  zSCRAM.authenticate)rkr)rlrm)rnro)rprq)rrrs) r7r8r9r:r0rwrgrUrrGrHrXr;r r )r6r rhs   rhcs:eZdZdZfddZeddZejddZ Z S) ANONYMOUSzT The ANONYMOUS SASL mechanism (see :rfc:`4505`). .. versionadded:: 0.3 cstjt|jd|_dS)Nzutf-8)r/r0rrb_token)r3rW)r6r r r0s zANONYMOUS.__init__cCsd|kr dSdS)Nrr )r3rTr r r rUszANONYMOUS.any_supportedccs<tjd|jd|jdEdH\}}|dkr8tddddS)Nzattempting ANONYMOUS mechanismr)r@rAr_zSASL protocol violation)r2T)r`rarBrr<)r3rVr@rerfr r r rXs zANONYMOUS.authenticate) r7r8r9r:r0rgrUrGrHrXr;r r )r6r rs  r)N)%r:rErGrrr r*rloggingrZrandomrZaiosasl.stringpreprrrrr getLoggerr7r`Z SystemRandomrrr- ImportErrorrr.r<r=ABCMetar?rJrRrZrhrr r r r os> 1" CR1+;python3-aiosasl/.pybuild/cpython3_3.6/build/aiosasl/stringprep.py0000644000175000017500000001305713320664156025605 0ustar horazonthorazont######################################################################## # File name: stringprep.py # This file is part of: aiosasl # # LICENSE # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this program. If not, see # . # ######################################################################## """ Stringprep support ################## This module implements the SASLprep (`RFC 4013`_) stringprep profile. .. autofunction:: saslprep .. _RFC 4013: https://tools.ietf.org/html/rfc4013 """ import stringprep import unicodedata _nodeprep_prohibited = frozenset("\"&'/:<>@") def is_RandALCat(c): return unicodedata.bidirectional(c) in ("R", "AL") def is_LCat(c): return unicodedata.bidirectional(c) == "L" def check_against_tables(chars, tables): """ Perform a check against the table predicates in `tables`. `tables` must be a reusable iterable containing characteristic functions of character sets, that is, functions which return :data:`True` if the character is in the table. The function returns the first character occuring in any of the tables or :data:`None` if no character matches. """ for c in chars: if any(in_table(c) for in_table in tables): return c return None def do_normalization(chars): """ Perform the stringprep normalization. Operates in-place on a list of unicode characters provided in `chars`. """ chars[:] = list(unicodedata.normalize("NFKC", "".join(chars))) def check_bidi(chars): """ Check proper bidirectionality as per stringprep. Operates on a list of unicode characters provided in `chars`. """ # the empty string is valid, as it cannot violate the RandALCat constraints if not chars: return # first_is_RorAL = unicodedata.bidirectional(chars[0]) in {"R", "AL"} # if first_is_RorAL: has_RandALCat = any(is_RandALCat(c) for c in chars) if not has_RandALCat: return has_LCat = any(is_LCat(c) for c in chars) if has_LCat: raise ValueError("L and R/AL characters must not occur in the same" " string") if not is_RandALCat(chars[0]) or not is_RandALCat(chars[-1]): raise ValueError("R/AL string must start and end with R/AL character.") def check_prohibited_output(chars, bad_tables): """ Check against prohibited output, by checking whether any of the characters from `chars` are in any of the `bad_tables`. Operates in-place on a list of code points from `chars`. """ violator = check_against_tables(chars, bad_tables) if violator is not None: raise ValueError("Input contains invalid unicode codepoint: " "U+{:04x}".format(ord(violator))) def check_unassigned(chars, bad_tables): """ Check that `chars` does not contain any unassigned code points as per the given list of `bad_tables`. Operates on a list of unicode code points provided in `chars`. """ bad_tables = ( stringprep.in_table_a1,) violator = check_against_tables(chars, bad_tables) if violator is not None: raise ValueError("Input contains unassigned code point: " "U+{:04x}".format(ord(violator))) def _saslprep_do_mapping(chars): """ Perform the stringprep mapping step of SASLprep. Operates in-place on a list of unicode characters provided in `chars`. """ i = 0 while i < len(chars): c = chars[i] if stringprep.in_table_c12(c): chars[i] = "\u0020" elif stringprep.in_table_b1(c): del chars[i] continue i += 1 def saslprep(string, allow_unassigned=False): """ Process the given `string` using the SASLprep profile. In the error cases defined in `RFC 3454`_ (stringprep), a :class:`ValueError` is raised. """ chars = list(string) _saslprep_do_mapping(chars) do_normalization(chars) check_prohibited_output( chars, ( stringprep.in_table_c12, stringprep.in_table_c21, stringprep.in_table_c22, stringprep.in_table_c3, stringprep.in_table_c4, stringprep.in_table_c5, stringprep.in_table_c6, stringprep.in_table_c7, stringprep.in_table_c8, stringprep.in_table_c9 ) ) check_bidi(chars) if not allow_unassigned: check_unassigned( chars, ( stringprep.in_table_a1, ) ) return "".join(chars) def trace(string): """ Implement the ``trace`` profile specified in :rfc:`4505`. """ check_prohibited_output( string, ( stringprep.in_table_c21, stringprep.in_table_c22, stringprep.in_table_c3, stringprep.in_table_c4, stringprep.in_table_c5, stringprep.in_table_c6, stringprep.in_table_c8, stringprep.in_table_c9, ) ) check_bidi(string) return string python3-aiosasl/.pybuild/cpython3_3.6/build/aiosasl/version.py0000644000175000017500000000207613320664156025074 0ustar horazonthorazont######################################################################## # File name: version.py # This file is part of: aiosasl # # LICENSE # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this program. If not, see # . # ######################################################################## version_info = (0, 3, 1, None) __version__ = ".".join(map(str, version_info[:3])) + ("-"+version_info[3] if version_info[3] else "") version = __version__ python3-aiosasl/.pybuild/cpython3_3.6/.pydistutils.cfg0000644000175000017500000000040013320726347023425 0ustar horazonthorazont[clean] all=1 [build] build-lib=/home/horazont/Projects/deb/python3-aiosasl/.pybuild/cpython3_3.6/build [install] force=1 install-layout=deb install-scripts=$base/bin install-lib=/usr/lib/python3.6/dist-packages prefix=/usr [easy_install] allow_hosts=None python3-aiosasl/COPYING.LESSER0000644000175000017500000001674313320664156016455 0ustar horazonthorazont GNU LESSER GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. 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If the Library as you received it specifies that a proxy can decide whether future versions of the GNU Lesser General Public License shall apply, that proxy's public statement of acceptance of any version is permanent authorization for you to choose that version for the Library. python3-aiosasl/debian/0000755000175000017500000000000013320727700015630 5ustar horazonthorazontpython3-aiosasl/debian/.debhelper/0000755000175000017500000000000013320726351017641 5ustar horazonthorazontpython3-aiosasl/debian/.debhelper/generated/0000755000175000017500000000000013320726351021577 5ustar horazonthorazontpython3-aiosasl/debian/.debhelper/generated/python3-aiosasl/0000755000175000017500000000000013320726351024634 5ustar horazonthorazontpython3-aiosasl/debian/.debhelper/generated/python3-aiosasl/installed-by-dh_installdocs0000644000175000017500000000000013320726351032124 0ustar horazonthorazontpython3-aiosasl/debian/python3-aiosasl/0000755000175000017500000000000013320726351020666 5ustar horazonthorazontpython3-aiosasl/debian/python3-aiosasl/DEBIAN/0000755000175000017500000000000013320726352021611 5ustar horazonthorazontpython3-aiosasl/debian/python3-aiosasl/DEBIAN/md5sums0000644000175000017500000000131413320726352023130 0ustar horazonthorazontd900a1db6a077f359cf4fce1dbc33757 usr/lib/python3/dist-packages/aiosasl-0.3.1.egg-info/PKG-INFO 68b329da9893e34099c7d8ad5cb9c940 usr/lib/python3/dist-packages/aiosasl-0.3.1.egg-info/dependency_links.txt f2a17574471d2106580d8939d6065e4a usr/lib/python3/dist-packages/aiosasl-0.3.1.egg-info/top_level.txt 87dbeda519d8b05d1a350c36106598f1 usr/lib/python3/dist-packages/aiosasl/__init__.py 638dfa55d542c4078a348dd4a770dbd3 usr/lib/python3/dist-packages/aiosasl/stringprep.py 87fcd20726f8556e2eda716691f84206 usr/lib/python3/dist-packages/aiosasl/version.py b2d5529301087b2d64c317599dbc868b usr/share/doc/python3-aiosasl/changelog.Debian.gz 32911a2287d44d7ec354299efa2cacdc usr/share/doc/python3-aiosasl/copyright python3-aiosasl/debian/python3-aiosasl/DEBIAN/prerm0000755000175000017500000000062513320726351022666 0ustar horazonthorazont#!/bin/sh set -e # Automatically added by dh_python3: if which py3clean >/dev/null 2>&1; then py3clean -p python3-aiosasl else dpkg -L python3-aiosasl | perl -ne 's,/([^/]*)\.py$,/__pycache__/\1.*, or next; unlink $_ or die $! foreach glob($_)' find /usr/lib/python3/dist-packages/ -type d -name __pycache__ -empty -print0 | xargs --null --no-run-if-empty rmdir fi # End automatically added section python3-aiosasl/debian/python3-aiosasl/DEBIAN/postinst0000755000175000017500000000024713320726351023424 0ustar horazonthorazont#!/bin/sh set -e # Automatically added by dh_python3: if which py3compile >/dev/null 2>&1; then py3compile -p python3-aiosasl fi # End automatically added section python3-aiosasl/debian/python3-aiosasl/DEBIAN/control0000644000175000017500000000142613320726352023217 0ustar horazonthorazontPackage: python3-aiosasl Version: 0.3.1-1 Architecture: all Maintainer: Jonas Wielicki Installed-Size: 50 Depends: python3:any (>= 3.3.2-2~) Section: python Priority: optional Description: Protocol-agnostic SASL library for use with asyncio aiosasl provides a generic, asyncio-based SASL library. It can be used with any protocol, provided the necessary interface code is provided by the application or protocol implementation. . Supported SASL mechanisms: . - PLAIN: authenticate with plaintext password (RFC 4616) - ANONYMOUS: anonymous "authentication" (RFC 4505) - SCRAM-SHA-1, SCRAM-SHA-224, , SCRAM-SHA-512, SCRAM-SHA-384, and SCRAM-SHA-256: Salted Challenge Response Authentication (RFC 5802), (and the -PLUS variants with channel binding). python3-aiosasl/debian/python3-aiosasl/usr/0000755000175000017500000000000013320726351021477 5ustar horazonthorazontpython3-aiosasl/debian/python3-aiosasl/usr/lib/0000755000175000017500000000000013320726351022245 5ustar horazonthorazontpython3-aiosasl/debian/python3-aiosasl/usr/lib/python3/0000755000175000017500000000000013320726351023651 5ustar horazonthorazontpython3-aiosasl/debian/python3-aiosasl/usr/lib/python3/dist-packages/0000755000175000017500000000000013320726351026370 5ustar horazonthorazontpython3-aiosasl/debian/python3-aiosasl/usr/lib/python3/dist-packages/aiosasl-0.3.1.egg-info/0000755000175000017500000000000013320726351032152 5ustar horazonthorazontpython3-aiosasl/debian/python3-aiosasl/usr/lib/python3/dist-packages/aiosasl-0.3.1.egg-info/PKG-INFO0000644000175000017500000000332413320726351033251 0ustar horazonthorazontMetadata-Version: 1.1 Name: aiosasl Version: 0.3.1 Summary: Pure-python, protocol agnostic SASL library for asyncio Home-page: https://github.com/horazont/aiosasl Author: Jonas Wielicki Author-email: jonas@wielicki.name License: GPL Description: ``aiosasl``, pure python generic asyncio SASL library ##################################################### ``aiosasl`` provides a generic, asyncio-based SASL library. It can be used with any protocol, provided the neccessary interface code is provided by the application or protocol implementation. Dependencies ------------ * Python ≥ 3.4 (or Python = 3.3 with tulip) Supported SASL mechanisms ------------------------- * ``PLAIN``: authenticate with plaintext password (RFC 4616) * ``ANONYMOUS``: anonymous "authentication" (RFC 4505) * ``SCRAM-SHA-1``, ``SCRAM-SHA-224``, , ``SCRAM-SHA-512``, ``SCRAM-SHA-384``, and ``SCRAM-SHA-256``: Salted Challenge Response Authentication (RFC 5802) Documentation ------------- Official documentation can be built with sphinx and is available online `on our servers `_. Keywords: asyncio sasl library Platform: UNKNOWN Classifier: Development Status :: 3 - Alpha Classifier: Intended Audience :: Developers Classifier: Programming Language :: Python :: 3 :: Only Classifier: Programming Language :: Python :: 3.3 Classifier: Programming Language :: Python :: 3.4 Classifier: Programming Language :: Python :: 3.5 Classifier: License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+) ././@LongLink0000644000000000000000000000015200000000000011601 Lustar rootrootpython3-aiosasl/debian/python3-aiosasl/usr/lib/python3/dist-packages/aiosasl-0.3.1.egg-info/top_level.txtpython3-aiosasl/debian/python3-aiosasl/usr/lib/python3/dist-packages/aiosasl-0.3.1.egg-info/top_leve0000644000175000017500000000001013320726351033701 0ustar horazonthorazontaiosasl ././@LongLink0000644000000000000000000000016100000000000011601 Lustar rootrootpython3-aiosasl/debian/python3-aiosasl/usr/lib/python3/dist-packages/aiosasl-0.3.1.egg-info/dependency_links.txtpython3-aiosasl/debian/python3-aiosasl/usr/lib/python3/dist-packages/aiosasl-0.3.1.egg-info/dependen0000644000175000017500000000000113320726351033646 0ustar horazonthorazont python3-aiosasl/debian/python3-aiosasl/usr/lib/python3/dist-packages/aiosasl/0000755000175000017500000000000013320726351030023 5ustar horazonthorazontpython3-aiosasl/debian/python3-aiosasl/usr/lib/python3/dist-packages/aiosasl/__init__.py0000644000175000017500000005366213320664156032154 0ustar horazonthorazont######################################################################## # File name: __init__.py # This file is part of: aiosasl # # LICENSE # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this program. If not, see # . # ######################################################################## """ Using SASL in a protocol ======================== To make use of SASL over an existing protocol, you first need to subclass and implement :class:`SASLInterface`. The usable mechanisms need to be detected by your application using the protocol over which to implement SASL. This is generally protocol-specific. For example, XMPP uses stream features to announce which SASL mechanisms are supported by the server. When a set of SASL mechanism strings has been obtained by the server (let us call a set with the mechanism strings ``sasl_mechanisms``), the mechanisms supported by your application (a list of :class:`SASLMechanism` subclass instances, let us call it ``mechanism_impls``) can be queried for support:: # intf = for impl in mechanism_impl: token = impl.any_supported(sasl_mechanisms) if token is not None: sm = aiosasl.SASLStateMachine(intf) try: yield from impl.authenticate(sm, token) except aiosasl.AuthenticationFailure: # handle authentication failure # it is generally not sensible to re-try with other mechanisms except aiosasl.SASLFailure: # this is a protocol problem, it is sensible to re-try other # mechanisms else: # authentication was successful! The instances for the mechanisms can be re-used; they do not save any state, the state is held by :class:`SASLStateMachine` instead. The different mechanisms require different arguments (the password-based mechanisms generally require a callback which provides credentials). The mechanisms which are currently supported by :mod:`aiosasl` are summarised below: .. autosummary:: PLAIN SCRAM Interface for protocols using SASL ================================== To implement SASL on an existing protocol, you need to subclass :class:`SASLInterface` and implement the abstract methods: .. autoclass:: SASLInterface SASL mechansims =============== .. autoclass:: PLAIN .. autoclass:: SCRAM .. autoclass:: ANONYMOUS Base class ---------- .. autoclass:: SASLMechanism SASL state machine ================== .. autoclass:: SASLStateMachine Exception classes ================= .. autoclass:: SASLError .. autoclass:: SASLFailure .. autoclass:: AuthenticationFailure Version information =================== .. autodata:: __version__ .. autodata:: version_info """ import abc import asyncio import base64 import functools import hashlib import hmac import itertools import logging import operator import random import time from aiosasl.stringprep import saslprep, trace from .version import version, __version__, version_info # NOQA logger = logging.getLogger(__name__) #: The imported :mod:`aiosasl` version as a tuple. #: #: The components of the tuple are, in order: `major version`, `minor version`, #: `patch level`, and `pre-release identifier`. version_info = version_info #: The imported :mod:`aiosasl` version as a string. #: #: The version number is dot-separated; in pre-release or development versions, #: the version number is followed by a hypen-separated pre-release identifier. __version__ = __version__ _system_random = random.SystemRandom() try: from hashlib import pbkdf2_hmac as pbkdf2 except ImportError: # this is untested if you have pbkdf2_hmac def pbkdf2(hashfun_name, input_data, salt, iterations, dklen=None): """ Derivate a key from a password. `input_data` is taken as the bytes object resembling the password (or other input). `hashfun` must be a callable returning a :mod:`hashlib`-compatible hash function. `salt` is the salt to be used in the PBKDF2 run, `iterations` the count of iterations. `dklen` is the length in bytes of the key to be derived. Return the derived key as :class:`bytes` object. """ if dklen is not None and dklen <= 0: raise ValueError("Invalid length for derived key: {}".format( dklen)) hashfun = lambda: hashlib.new(hashfun_name) hlen = hashfun().digest_size if dklen is None: dklen = hlen block_count = (dklen + (hlen - 1)) // hlen mac_base = hmac.new(input_data, None, hashfun) def do_hmac(data): mac = mac_base.copy() mac.update(data) return mac.digest() def calc_block(i): u_prev = do_hmac(salt + i.to_bytes(4, "big")) u_accum = u_prev for k in range(1, iterations): u_curr = do_hmac(u_prev) u_accum = bytes(itertools.starmap( operator.xor, zip(u_accum, u_curr))) u_prev = u_curr return u_accum result = b"".join( calc_block(i) for i in range(1, block_count + 1)) return result[:dklen] class SASLError(Exception): """ Base class for a SASL related error. `opaque_error` may be anything but :data:`None` which helps your application re-identify the error at the outer layers. `kind` is a string which helps identifying the class of the error; this is set implicitly by the constructors of :class:`SASLFailure` and :class:`AuthenticationFailure`, which you are encouraged to use. `text` may be a human-readable string describing the error condition in more detail. `opaque_error` is set to :data:`None` by :class:`SASLMechanism` implementations to indicate errors which originate from the local mechanism implementation. .. attribute:: opaque_error The value passed to the respective constructor argument. .. attribute:: text The value passed to the respective constructor argument. """ def __init__(self, opaque_error, kind, text=None): msg = "{}: {}".format(opaque_error, kind) if text: msg += ": {}".format(text) super().__init__(msg) self.opaque_error = opaque_error self.text = text class SASLFailure(SASLError): """ A SASL protocol failure which is unrelated to the credentials passed. This may be raised by :class:`SASLInterface` methods. """ def __init__(self, opaque_error, text=None): super().__init__(opaque_error, "SASL failure", text=text) def promote_to_authentication_failure(self): return AuthenticationFailure( self.opaque_error, self.text) class AuthenticationFailure(SASLError): """ A SASL error which indicates that the provided credentials are invalid. This may be raised by :class:`SASLInterface` methods. """ def __init__(self, opaque_error, text=None): super().__init__(opaque_error, "authentication failed", text=text) class SASLInterface(metaclass=abc.ABCMeta): """ This class serves as an abstract base class for interfaces for use with :class:`SASLStateMachine`. Specific protocols using SASL (such as XMPP, IMAP or SMTP) can subclass this interface to implement SASL on top of the existing protocol. The interface class does not need to implement any state checking. State checking is done by the :class:`SASLStateMachine`. The following interface must be implemented by subclasses. The return values of the methods below are tuples of the following form: * ``("success", payload)`` -- After successful authentication, success is returned. Depending on the mechanism, a payload (as :class:`bytes` object) may be attached to the result, otherwise, ``payload`` is :data:`None`. * ``("challenge", payload)`` -- A challenge was sent by the server in reply to the previous command. * ``("failure", None)`` -- This is only ever returned by :meth:`abort`. All other methods **must** raise errors as :class:`SASLFailure`. .. automethod:: initiate .. automethod:: respond .. automethod:: abort """ @abc.abstractmethod @asyncio.coroutine def initiate(self, mechanism, payload=None): """ Send a SASL initiation request for the given `mechanism`. Depending on the `mechanism`, an initial `payload` *may* be given. The `payload` is then a :class:`bytes` object which needs to be passed as initial payload during the initiation request. Wait for a reply by the peer and return the reply as a next-state tuple in the format documented at :class:`SASLInterface`. """ @abc.abstractmethod @asyncio.coroutine def respond(self, payload): """ Send a response to a challenge. The `payload` is a :class:`bytes` object which is to be sent as response. Wait for a reply by the peer and return the reply as a next-state tuple in the format documented at :class:`SASLInterface`. """ @abc.abstractmethod @asyncio.coroutine def abort(self): """ Abort the authentication. The result is either the failure tuple (``("failure", None)``) or a :class:`SASLFailure` exception if the response from the peer did not indicate abortion (e.g. another error was returned by the peer or the peer indicated success). """ class SASLStateMachine: """ A state machine to reduce code duplication during SASL handshake. The state methods change the state and return the next client state of the SASL handshake, optionally with server-supplied payload. Note that, with the notable exception of :meth:`abort`, ``failure`` states are never returned but thrown as :class:`SASLFailure` instead. The initial state is never returned. """ def __init__(self, interface): super().__init__() self.interface = interface self._state = "initial" @asyncio.coroutine def initiate(self, mechanism, payload=None): """ Initiate the SASL handshake and advertise the use of the given `mechanism`. If `payload` is not :data:`None`, it will be base64 encoded and sent as initial client response along with the ```` element. Return the next state of the state machine as tuple (see :class:`SASLStateMachine` for details). """ if self._state != "initial": raise RuntimeError("initiate has already been called") try: next_state, payload = yield from self.interface.initiate( mechanism, payload=payload) except SASLFailure: self._state = "failure" raise self._state = next_state return next_state, payload @asyncio.coroutine def response(self, payload): """ Send a response to the previously received challenge, with the given `payload`. The payload is encoded using base64 and transmitted to the server. Return the next state of the state machine as tuple (see :class:`SASLStateMachine` for details). """ if self._state != "challenge": raise RuntimeError( "no challenge has been made or negotiation failed") try: next_state, payload = yield from self.interface.respond(payload) except SASLFailure: self._state = "failure" raise self._state = next_state return next_state, payload @asyncio.coroutine def abort(self): """ Abort an initiated SASL authentication process. The expected result state is ``failure``. """ if self._state == "initial": raise RuntimeError("SASL authentication hasn't started yet") try: return (yield from self.interface.abort()) finally: self._state = "failure" class SASLMechanism(metaclass=abc.ABCMeta): """ Implementation of a SASL mechanism. Two methods must be implemented by subclasses: .. automethod:: any_supported .. automethod:: authenticate .. note:: Administrative note Patches for new SASL mechanisms are welcome! """ @abc.abstractclassmethod def any_supported(cls, mechanisms): """ Determine whether this class can perform any SASL mechanism in the set of strings ``mechanisms``. If the class cannot perform any of the SASL mechanisms in ``mechanisms``, it must return :data:`None`. Otherwise, it must return a non-:data:`None` value. Applications must not assign any meaning to any value (except that :data:`None` is a sure indicator that the class cannot perform any of the listed mechanisms) and must not alter any value returned by this function. Note that even :data:`False` indicates success! The return value must be passed as second argument to :meth:`authenticate`. :meth:`authenticate` must not be called with a :data:`None` value. """ @asyncio.coroutine @abc.abstractmethod def authenticate(self, sm, token): """ Execute the mechanism identified by `token` (the non-:data:`None` value which has been returned by :meth:`any_supported` before) using the given :class:`SASLStateMachine` `sm`. If authentication fails, an appropriate exception is raised (:class:`AuthenticationFailure`). If the authentication fails for a reason unrelated to credentials, :class:`SASLFailure` is raised. """ class PLAIN(SASLMechanism): """ The password-based ``PLAIN`` SASL mechanism (see :rfc:`4616`). .. warning:: This is generally unsafe over unencrypted connections and should not be used there. Exclusion of the ``PLAIN`` mechanism over unsafe connections is out of scope for :mod:`aiosasl` and needs to be handled by the protocol implementation! `credential_provider` must be coroutine which returns a ``(user, password)`` tuple. """ def __init__(self, credential_provider): super().__init__() self._credential_provider = credential_provider @classmethod def any_supported(cls, mechanisms): if "PLAIN" in mechanisms: return "PLAIN" return None @asyncio.coroutine def authenticate(self, sm, mechanism): logger.info("attempting PLAIN mechanism") username, password = yield from self._credential_provider() username = saslprep(username).encode("utf8") password = saslprep(password).encode("utf8") state, _ = yield from sm.initiate( mechanism="PLAIN", payload=b"\0" + username + b"\0" + password) if state != "success": raise SASLFailure( None, text="SASL protocol violation") return True class SCRAM(SASLMechanism): """ The password-based SCRAM (non-PLUS) SASL mechanism (see :rfc:`5802`). .. note:: As "non-PLUS" suggests, this does not support channel binding. Patches welcome. It may make sense to implement the -PLUS mechanisms as separate :class:`SASLMechanism` subclass or at least allow disabling them via an optional argument (defaulting to disabled). Channel binding may not be reliably available in all cases. `credential_provider` must be coroutine which returns a ``(user, password)`` tuple. """ def __init__(self, credential_provider): super().__init__() self._credential_provider = credential_provider self.nonce_length = 15 _supported_hashalgos = { # the second argument is for preference ordering (highest first) # if anyone has a better hash ordering suggestion, I’m open for it # a value of 1 is added if the -PLUS variant is used # -- JWI "SHA-1": ("sha1", 1), "SHA-224": ("sha224", 224), "SHA-512": ("sha512", 512), "SHA-384": ("sha384", 384), "SHA-256": ("sha256", 256), } @classmethod def any_supported(cls, mechanisms): supported = [] for mechanism in mechanisms: if not mechanism.startswith("SCRAM-"): continue if mechanism.endswith("-PLUS"): # channel binding is not supported continue hashfun_key = mechanism[6:] try: hashfun_name, quality = cls._supported_hashalgos[hashfun_key] except KeyError: continue supported.append(((1, quality), (mechanism, hashfun_name,))) if not supported: return None supported.sort() return supported.pop()[1] @classmethod def parse_message(cls, msg): parts = ( part for part in msg.split(b",") if part) for part in parts: key, _, value = part.partition(b"=") if len(key) > 1 or key == b"m": raise Exception("SCRAM protocol violation / unknown " "future extension") if key == b"n" or key == b"a": value = value.replace(b"=2C", b",").replace(b"=3D", b"=") yield key, value @asyncio.coroutine def authenticate(self, sm, token): mechanism, hashfun_name, = token logger.info("attempting %s mechanism (using %s hashfun)", mechanism, hashfun_name) # this is pretty much a verbatim implementation of RFC 5802. hashfun_factory = functools.partial(hashlib.new, hashfun_name) digest_size = hashfun_factory().digest_size # we don’t support channel binding gs2_header = b"n,," username, password = yield from self._credential_provider() username = saslprep(username).encode("utf8") password = saslprep(password).encode("utf8") our_nonce = base64.b64encode(_system_random.getrandbits( self.nonce_length * 8 ).to_bytes( self.nonce_length, "little" )) auth_message = b"n=" + username + b",r=" + our_nonce _, payload = yield from sm.initiate( mechanism, gs2_header + auth_message) auth_message += b"," + payload payload = dict(self.parse_message(payload)) try: iteration_count = int(payload[b"i"]) nonce = payload[b"r"] salt = base64.b64decode(payload[b"s"]) except (ValueError, KeyError): yield from sm.abort() raise SASLFailure( None, text="malformed server message: {!r}".format(payload)) if not nonce.startswith(our_nonce): yield from sm.abort() raise SASLFailure( None, text="server nonce doesn't fit our nonce") t0 = time.time() salted_password = pbkdf2( hashfun_name, password, salt, iteration_count) logger.debug("pbkdf2 timing: %f seconds", time.time() - t0) client_key = hmac.new( salted_password, b"Client Key", hashfun_factory).digest() stored_key = hashfun_factory(client_key).digest() reply = b"c=" + base64.b64encode(b"n,,") + b",r=" + nonce auth_message += b"," + reply client_proof = ( int.from_bytes( hmac.new( stored_key, auth_message, hashfun_factory).digest(), "big") ^ int.from_bytes(client_key, "big")).to_bytes(digest_size, "big") logger.debug("response generation time: %f seconds", time.time() - t0) try: state, payload = yield from sm.response( reply + b",p=" + base64.b64encode(client_proof) ) except SASLFailure as err: raise err.promote_to_authentication_failure() from None if state != "success": raise SASLFailure( "malformed-request", text="SCRAM protocol violation") server_signature = hmac.new( hmac.new( salted_password, b"Server Key", hashfun_factory).digest(), auth_message, hashfun_factory).digest() payload = dict(self.parse_message(payload)) if base64.b64decode(payload[b"v"]) != server_signature: raise SASLFailure( None, "authentication successful, but server signature invalid") return True class ANONYMOUS(SASLMechanism): """ The ANONYMOUS SASL mechanism (see :rfc:`4505`). .. versionadded:: 0.3 """ def __init__(self, token): super().__init__() self._token = trace(token).encode("utf-8") @classmethod def any_supported(self, mechanisms): if "ANONYMOUS" in mechanisms: return "ANONYMOUS" return None @asyncio.coroutine def authenticate(self, sm, mechanism): logger.info("attempting ANONYMOUS mechanism") state, _ = yield from sm.initiate( mechanism="ANONYMOUS", payload=self._token ) if state != "success": raise SASLFailure( None, text="SASL protocol violation") return True python3-aiosasl/debian/python3-aiosasl/usr/lib/python3/dist-packages/aiosasl/stringprep.py0000644000175000017500000001305713320664156032604 0ustar horazonthorazont######################################################################## # File name: stringprep.py # This file is part of: aiosasl # # LICENSE # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this program. If not, see # . # ######################################################################## """ Stringprep support ################## This module implements the SASLprep (`RFC 4013`_) stringprep profile. .. autofunction:: saslprep .. _RFC 4013: https://tools.ietf.org/html/rfc4013 """ import stringprep import unicodedata _nodeprep_prohibited = frozenset("\"&'/:<>@") def is_RandALCat(c): return unicodedata.bidirectional(c) in ("R", "AL") def is_LCat(c): return unicodedata.bidirectional(c) == "L" def check_against_tables(chars, tables): """ Perform a check against the table predicates in `tables`. `tables` must be a reusable iterable containing characteristic functions of character sets, that is, functions which return :data:`True` if the character is in the table. The function returns the first character occuring in any of the tables or :data:`None` if no character matches. """ for c in chars: if any(in_table(c) for in_table in tables): return c return None def do_normalization(chars): """ Perform the stringprep normalization. Operates in-place on a list of unicode characters provided in `chars`. """ chars[:] = list(unicodedata.normalize("NFKC", "".join(chars))) def check_bidi(chars): """ Check proper bidirectionality as per stringprep. Operates on a list of unicode characters provided in `chars`. """ # the empty string is valid, as it cannot violate the RandALCat constraints if not chars: return # first_is_RorAL = unicodedata.bidirectional(chars[0]) in {"R", "AL"} # if first_is_RorAL: has_RandALCat = any(is_RandALCat(c) for c in chars) if not has_RandALCat: return has_LCat = any(is_LCat(c) for c in chars) if has_LCat: raise ValueError("L and R/AL characters must not occur in the same" " string") if not is_RandALCat(chars[0]) or not is_RandALCat(chars[-1]): raise ValueError("R/AL string must start and end with R/AL character.") def check_prohibited_output(chars, bad_tables): """ Check against prohibited output, by checking whether any of the characters from `chars` are in any of the `bad_tables`. Operates in-place on a list of code points from `chars`. """ violator = check_against_tables(chars, bad_tables) if violator is not None: raise ValueError("Input contains invalid unicode codepoint: " "U+{:04x}".format(ord(violator))) def check_unassigned(chars, bad_tables): """ Check that `chars` does not contain any unassigned code points as per the given list of `bad_tables`. Operates on a list of unicode code points provided in `chars`. """ bad_tables = ( stringprep.in_table_a1,) violator = check_against_tables(chars, bad_tables) if violator is not None: raise ValueError("Input contains unassigned code point: " "U+{:04x}".format(ord(violator))) def _saslprep_do_mapping(chars): """ Perform the stringprep mapping step of SASLprep. Operates in-place on a list of unicode characters provided in `chars`. """ i = 0 while i < len(chars): c = chars[i] if stringprep.in_table_c12(c): chars[i] = "\u0020" elif stringprep.in_table_b1(c): del chars[i] continue i += 1 def saslprep(string, allow_unassigned=False): """ Process the given `string` using the SASLprep profile. In the error cases defined in `RFC 3454`_ (stringprep), a :class:`ValueError` is raised. """ chars = list(string) _saslprep_do_mapping(chars) do_normalization(chars) check_prohibited_output( chars, ( stringprep.in_table_c12, stringprep.in_table_c21, stringprep.in_table_c22, stringprep.in_table_c3, stringprep.in_table_c4, stringprep.in_table_c5, stringprep.in_table_c6, stringprep.in_table_c7, stringprep.in_table_c8, stringprep.in_table_c9 ) ) check_bidi(chars) if not allow_unassigned: check_unassigned( chars, ( stringprep.in_table_a1, ) ) return "".join(chars) def trace(string): """ Implement the ``trace`` profile specified in :rfc:`4505`. """ check_prohibited_output( string, ( stringprep.in_table_c21, stringprep.in_table_c22, stringprep.in_table_c3, stringprep.in_table_c4, stringprep.in_table_c5, stringprep.in_table_c6, stringprep.in_table_c8, stringprep.in_table_c9, ) ) check_bidi(string) return string python3-aiosasl/debian/python3-aiosasl/usr/lib/python3/dist-packages/aiosasl/version.py0000644000175000017500000000207613320664156032073 0ustar horazonthorazont######################################################################## # File name: version.py # This file is part of: aiosasl # # LICENSE # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this program. If not, see # . # ######################################################################## version_info = (0, 3, 1, None) __version__ = ".".join(map(str, version_info[:3])) + ("-"+version_info[3] if version_info[3] else "") version = __version__ python3-aiosasl/debian/python3-aiosasl/usr/share/0000755000175000017500000000000013320726351022601 5ustar horazonthorazontpython3-aiosasl/debian/python3-aiosasl/usr/share/doc/0000755000175000017500000000000013320726351023346 5ustar horazonthorazontpython3-aiosasl/debian/python3-aiosasl/usr/share/doc/python3-aiosasl/0000755000175000017500000000000013320726351026403 5ustar horazonthorazontpython3-aiosasl/debian/python3-aiosasl/usr/share/doc/python3-aiosasl/copyright0000644000175000017500000000207213320726306030337 0ustar horazonthorazontFormat: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/ Upstream-Name: aiosasl Source: https://github.com/horazont/aiosasl Files: * Copyright: Copyright 2018 Jonas Wielicki License: LGPL-3+ This package is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. . This package 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 Lesser General Public License for more details. . You should have received a copy of the GNU Lesser General Public License along with this package; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA . On Debian systems, the complete text of the GNU Lesser General Public License can be found in `/usr/share/common-licenses/LGPL-3'. python3-aiosasl/debian/python3-aiosasl/usr/share/doc/python3-aiosasl/changelog.Debian.gz0000644000175000017500000000025013320726331032050 0ustar horazonthorazont-M 0໿.Zml3J탢<$աFN }x^]sw6&R;/AhL9·cW|3E[ߔ-yckuA^QkzI*D2JVFOoje!X5'(ŀ Ƃݨpython3-aiosasl/LICENSES0000644000175000017500000000024113320664156015540 0ustar horazonthorazontLicense ======= The whole ``aiosasl`` package is distributed under the LGPLv3. See ``COPYING.gpl3`` together with ``COPYING.LESSER`` for the full license text. python3-aiosasl/aiosasl/0000755000175000017500000000000013320664156016046 5ustar horazonthorazontpython3-aiosasl/aiosasl/__init__.py0000644000175000017500000005366213320664156020173 0ustar horazonthorazont######################################################################## # File name: __init__.py # This file is part of: aiosasl # # LICENSE # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this program. If not, see # . # ######################################################################## """ Using SASL in a protocol ======================== To make use of SASL over an existing protocol, you first need to subclass and implement :class:`SASLInterface`. The usable mechanisms need to be detected by your application using the protocol over which to implement SASL. This is generally protocol-specific. For example, XMPP uses stream features to announce which SASL mechanisms are supported by the server. When a set of SASL mechanism strings has been obtained by the server (let us call a set with the mechanism strings ``sasl_mechanisms``), the mechanisms supported by your application (a list of :class:`SASLMechanism` subclass instances, let us call it ``mechanism_impls``) can be queried for support:: # intf = for impl in mechanism_impl: token = impl.any_supported(sasl_mechanisms) if token is not None: sm = aiosasl.SASLStateMachine(intf) try: yield from impl.authenticate(sm, token) except aiosasl.AuthenticationFailure: # handle authentication failure # it is generally not sensible to re-try with other mechanisms except aiosasl.SASLFailure: # this is a protocol problem, it is sensible to re-try other # mechanisms else: # authentication was successful! The instances for the mechanisms can be re-used; they do not save any state, the state is held by :class:`SASLStateMachine` instead. The different mechanisms require different arguments (the password-based mechanisms generally require a callback which provides credentials). The mechanisms which are currently supported by :mod:`aiosasl` are summarised below: .. autosummary:: PLAIN SCRAM Interface for protocols using SASL ================================== To implement SASL on an existing protocol, you need to subclass :class:`SASLInterface` and implement the abstract methods: .. autoclass:: SASLInterface SASL mechansims =============== .. autoclass:: PLAIN .. autoclass:: SCRAM .. autoclass:: ANONYMOUS Base class ---------- .. autoclass:: SASLMechanism SASL state machine ================== .. autoclass:: SASLStateMachine Exception classes ================= .. autoclass:: SASLError .. autoclass:: SASLFailure .. autoclass:: AuthenticationFailure Version information =================== .. autodata:: __version__ .. autodata:: version_info """ import abc import asyncio import base64 import functools import hashlib import hmac import itertools import logging import operator import random import time from aiosasl.stringprep import saslprep, trace from .version import version, __version__, version_info # NOQA logger = logging.getLogger(__name__) #: The imported :mod:`aiosasl` version as a tuple. #: #: The components of the tuple are, in order: `major version`, `minor version`, #: `patch level`, and `pre-release identifier`. version_info = version_info #: The imported :mod:`aiosasl` version as a string. #: #: The version number is dot-separated; in pre-release or development versions, #: the version number is followed by a hypen-separated pre-release identifier. __version__ = __version__ _system_random = random.SystemRandom() try: from hashlib import pbkdf2_hmac as pbkdf2 except ImportError: # this is untested if you have pbkdf2_hmac def pbkdf2(hashfun_name, input_data, salt, iterations, dklen=None): """ Derivate a key from a password. `input_data` is taken as the bytes object resembling the password (or other input). `hashfun` must be a callable returning a :mod:`hashlib`-compatible hash function. `salt` is the salt to be used in the PBKDF2 run, `iterations` the count of iterations. `dklen` is the length in bytes of the key to be derived. Return the derived key as :class:`bytes` object. """ if dklen is not None and dklen <= 0: raise ValueError("Invalid length for derived key: {}".format( dklen)) hashfun = lambda: hashlib.new(hashfun_name) hlen = hashfun().digest_size if dklen is None: dklen = hlen block_count = (dklen + (hlen - 1)) // hlen mac_base = hmac.new(input_data, None, hashfun) def do_hmac(data): mac = mac_base.copy() mac.update(data) return mac.digest() def calc_block(i): u_prev = do_hmac(salt + i.to_bytes(4, "big")) u_accum = u_prev for k in range(1, iterations): u_curr = do_hmac(u_prev) u_accum = bytes(itertools.starmap( operator.xor, zip(u_accum, u_curr))) u_prev = u_curr return u_accum result = b"".join( calc_block(i) for i in range(1, block_count + 1)) return result[:dklen] class SASLError(Exception): """ Base class for a SASL related error. `opaque_error` may be anything but :data:`None` which helps your application re-identify the error at the outer layers. `kind` is a string which helps identifying the class of the error; this is set implicitly by the constructors of :class:`SASLFailure` and :class:`AuthenticationFailure`, which you are encouraged to use. `text` may be a human-readable string describing the error condition in more detail. `opaque_error` is set to :data:`None` by :class:`SASLMechanism` implementations to indicate errors which originate from the local mechanism implementation. .. attribute:: opaque_error The value passed to the respective constructor argument. .. attribute:: text The value passed to the respective constructor argument. """ def __init__(self, opaque_error, kind, text=None): msg = "{}: {}".format(opaque_error, kind) if text: msg += ": {}".format(text) super().__init__(msg) self.opaque_error = opaque_error self.text = text class SASLFailure(SASLError): """ A SASL protocol failure which is unrelated to the credentials passed. This may be raised by :class:`SASLInterface` methods. """ def __init__(self, opaque_error, text=None): super().__init__(opaque_error, "SASL failure", text=text) def promote_to_authentication_failure(self): return AuthenticationFailure( self.opaque_error, self.text) class AuthenticationFailure(SASLError): """ A SASL error which indicates that the provided credentials are invalid. This may be raised by :class:`SASLInterface` methods. """ def __init__(self, opaque_error, text=None): super().__init__(opaque_error, "authentication failed", text=text) class SASLInterface(metaclass=abc.ABCMeta): """ This class serves as an abstract base class for interfaces for use with :class:`SASLStateMachine`. Specific protocols using SASL (such as XMPP, IMAP or SMTP) can subclass this interface to implement SASL on top of the existing protocol. The interface class does not need to implement any state checking. State checking is done by the :class:`SASLStateMachine`. The following interface must be implemented by subclasses. The return values of the methods below are tuples of the following form: * ``("success", payload)`` -- After successful authentication, success is returned. Depending on the mechanism, a payload (as :class:`bytes` object) may be attached to the result, otherwise, ``payload`` is :data:`None`. * ``("challenge", payload)`` -- A challenge was sent by the server in reply to the previous command. * ``("failure", None)`` -- This is only ever returned by :meth:`abort`. All other methods **must** raise errors as :class:`SASLFailure`. .. automethod:: initiate .. automethod:: respond .. automethod:: abort """ @abc.abstractmethod @asyncio.coroutine def initiate(self, mechanism, payload=None): """ Send a SASL initiation request for the given `mechanism`. Depending on the `mechanism`, an initial `payload` *may* be given. The `payload` is then a :class:`bytes` object which needs to be passed as initial payload during the initiation request. Wait for a reply by the peer and return the reply as a next-state tuple in the format documented at :class:`SASLInterface`. """ @abc.abstractmethod @asyncio.coroutine def respond(self, payload): """ Send a response to a challenge. The `payload` is a :class:`bytes` object which is to be sent as response. Wait for a reply by the peer and return the reply as a next-state tuple in the format documented at :class:`SASLInterface`. """ @abc.abstractmethod @asyncio.coroutine def abort(self): """ Abort the authentication. The result is either the failure tuple (``("failure", None)``) or a :class:`SASLFailure` exception if the response from the peer did not indicate abortion (e.g. another error was returned by the peer or the peer indicated success). """ class SASLStateMachine: """ A state machine to reduce code duplication during SASL handshake. The state methods change the state and return the next client state of the SASL handshake, optionally with server-supplied payload. Note that, with the notable exception of :meth:`abort`, ``failure`` states are never returned but thrown as :class:`SASLFailure` instead. The initial state is never returned. """ def __init__(self, interface): super().__init__() self.interface = interface self._state = "initial" @asyncio.coroutine def initiate(self, mechanism, payload=None): """ Initiate the SASL handshake and advertise the use of the given `mechanism`. If `payload` is not :data:`None`, it will be base64 encoded and sent as initial client response along with the ```` element. Return the next state of the state machine as tuple (see :class:`SASLStateMachine` for details). """ if self._state != "initial": raise RuntimeError("initiate has already been called") try: next_state, payload = yield from self.interface.initiate( mechanism, payload=payload) except SASLFailure: self._state = "failure" raise self._state = next_state return next_state, payload @asyncio.coroutine def response(self, payload): """ Send a response to the previously received challenge, with the given `payload`. The payload is encoded using base64 and transmitted to the server. Return the next state of the state machine as tuple (see :class:`SASLStateMachine` for details). """ if self._state != "challenge": raise RuntimeError( "no challenge has been made or negotiation failed") try: next_state, payload = yield from self.interface.respond(payload) except SASLFailure: self._state = "failure" raise self._state = next_state return next_state, payload @asyncio.coroutine def abort(self): """ Abort an initiated SASL authentication process. The expected result state is ``failure``. """ if self._state == "initial": raise RuntimeError("SASL authentication hasn't started yet") try: return (yield from self.interface.abort()) finally: self._state = "failure" class SASLMechanism(metaclass=abc.ABCMeta): """ Implementation of a SASL mechanism. Two methods must be implemented by subclasses: .. automethod:: any_supported .. automethod:: authenticate .. note:: Administrative note Patches for new SASL mechanisms are welcome! """ @abc.abstractclassmethod def any_supported(cls, mechanisms): """ Determine whether this class can perform any SASL mechanism in the set of strings ``mechanisms``. If the class cannot perform any of the SASL mechanisms in ``mechanisms``, it must return :data:`None`. Otherwise, it must return a non-:data:`None` value. Applications must not assign any meaning to any value (except that :data:`None` is a sure indicator that the class cannot perform any of the listed mechanisms) and must not alter any value returned by this function. Note that even :data:`False` indicates success! The return value must be passed as second argument to :meth:`authenticate`. :meth:`authenticate` must not be called with a :data:`None` value. """ @asyncio.coroutine @abc.abstractmethod def authenticate(self, sm, token): """ Execute the mechanism identified by `token` (the non-:data:`None` value which has been returned by :meth:`any_supported` before) using the given :class:`SASLStateMachine` `sm`. If authentication fails, an appropriate exception is raised (:class:`AuthenticationFailure`). If the authentication fails for a reason unrelated to credentials, :class:`SASLFailure` is raised. """ class PLAIN(SASLMechanism): """ The password-based ``PLAIN`` SASL mechanism (see :rfc:`4616`). .. warning:: This is generally unsafe over unencrypted connections and should not be used there. Exclusion of the ``PLAIN`` mechanism over unsafe connections is out of scope for :mod:`aiosasl` and needs to be handled by the protocol implementation! `credential_provider` must be coroutine which returns a ``(user, password)`` tuple. """ def __init__(self, credential_provider): super().__init__() self._credential_provider = credential_provider @classmethod def any_supported(cls, mechanisms): if "PLAIN" in mechanisms: return "PLAIN" return None @asyncio.coroutine def authenticate(self, sm, mechanism): logger.info("attempting PLAIN mechanism") username, password = yield from self._credential_provider() username = saslprep(username).encode("utf8") password = saslprep(password).encode("utf8") state, _ = yield from sm.initiate( mechanism="PLAIN", payload=b"\0" + username + b"\0" + password) if state != "success": raise SASLFailure( None, text="SASL protocol violation") return True class SCRAM(SASLMechanism): """ The password-based SCRAM (non-PLUS) SASL mechanism (see :rfc:`5802`). .. note:: As "non-PLUS" suggests, this does not support channel binding. Patches welcome. It may make sense to implement the -PLUS mechanisms as separate :class:`SASLMechanism` subclass or at least allow disabling them via an optional argument (defaulting to disabled). Channel binding may not be reliably available in all cases. `credential_provider` must be coroutine which returns a ``(user, password)`` tuple. """ def __init__(self, credential_provider): super().__init__() self._credential_provider = credential_provider self.nonce_length = 15 _supported_hashalgos = { # the second argument is for preference ordering (highest first) # if anyone has a better hash ordering suggestion, I’m open for it # a value of 1 is added if the -PLUS variant is used # -- JWI "SHA-1": ("sha1", 1), "SHA-224": ("sha224", 224), "SHA-512": ("sha512", 512), "SHA-384": ("sha384", 384), "SHA-256": ("sha256", 256), } @classmethod def any_supported(cls, mechanisms): supported = [] for mechanism in mechanisms: if not mechanism.startswith("SCRAM-"): continue if mechanism.endswith("-PLUS"): # channel binding is not supported continue hashfun_key = mechanism[6:] try: hashfun_name, quality = cls._supported_hashalgos[hashfun_key] except KeyError: continue supported.append(((1, quality), (mechanism, hashfun_name,))) if not supported: return None supported.sort() return supported.pop()[1] @classmethod def parse_message(cls, msg): parts = ( part for part in msg.split(b",") if part) for part in parts: key, _, value = part.partition(b"=") if len(key) > 1 or key == b"m": raise Exception("SCRAM protocol violation / unknown " "future extension") if key == b"n" or key == b"a": value = value.replace(b"=2C", b",").replace(b"=3D", b"=") yield key, value @asyncio.coroutine def authenticate(self, sm, token): mechanism, hashfun_name, = token logger.info("attempting %s mechanism (using %s hashfun)", mechanism, hashfun_name) # this is pretty much a verbatim implementation of RFC 5802. hashfun_factory = functools.partial(hashlib.new, hashfun_name) digest_size = hashfun_factory().digest_size # we don’t support channel binding gs2_header = b"n,," username, password = yield from self._credential_provider() username = saslprep(username).encode("utf8") password = saslprep(password).encode("utf8") our_nonce = base64.b64encode(_system_random.getrandbits( self.nonce_length * 8 ).to_bytes( self.nonce_length, "little" )) auth_message = b"n=" + username + b",r=" + our_nonce _, payload = yield from sm.initiate( mechanism, gs2_header + auth_message) auth_message += b"," + payload payload = dict(self.parse_message(payload)) try: iteration_count = int(payload[b"i"]) nonce = payload[b"r"] salt = base64.b64decode(payload[b"s"]) except (ValueError, KeyError): yield from sm.abort() raise SASLFailure( None, text="malformed server message: {!r}".format(payload)) if not nonce.startswith(our_nonce): yield from sm.abort() raise SASLFailure( None, text="server nonce doesn't fit our nonce") t0 = time.time() salted_password = pbkdf2( hashfun_name, password, salt, iteration_count) logger.debug("pbkdf2 timing: %f seconds", time.time() - t0) client_key = hmac.new( salted_password, b"Client Key", hashfun_factory).digest() stored_key = hashfun_factory(client_key).digest() reply = b"c=" + base64.b64encode(b"n,,") + b",r=" + nonce auth_message += b"," + reply client_proof = ( int.from_bytes( hmac.new( stored_key, auth_message, hashfun_factory).digest(), "big") ^ int.from_bytes(client_key, "big")).to_bytes(digest_size, "big") logger.debug("response generation time: %f seconds", time.time() - t0) try: state, payload = yield from sm.response( reply + b",p=" + base64.b64encode(client_proof) ) except SASLFailure as err: raise err.promote_to_authentication_failure() from None if state != "success": raise SASLFailure( "malformed-request", text="SCRAM protocol violation") server_signature = hmac.new( hmac.new( salted_password, b"Server Key", hashfun_factory).digest(), auth_message, hashfun_factory).digest() payload = dict(self.parse_message(payload)) if base64.b64decode(payload[b"v"]) != server_signature: raise SASLFailure( None, "authentication successful, but server signature invalid") return True class ANONYMOUS(SASLMechanism): """ The ANONYMOUS SASL mechanism (see :rfc:`4505`). .. versionadded:: 0.3 """ def __init__(self, token): super().__init__() self._token = trace(token).encode("utf-8") @classmethod def any_supported(self, mechanisms): if "ANONYMOUS" in mechanisms: return "ANONYMOUS" return None @asyncio.coroutine def authenticate(self, sm, mechanism): logger.info("attempting ANONYMOUS mechanism") state, _ = yield from sm.initiate( mechanism="ANONYMOUS", payload=self._token ) if state != "success": raise SASLFailure( None, text="SASL protocol violation") return True python3-aiosasl/aiosasl/stringprep.py0000644000175000017500000001305713320664156020623 0ustar horazonthorazont######################################################################## # File name: stringprep.py # This file is part of: aiosasl # # LICENSE # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this program. If not, see # . # ######################################################################## """ Stringprep support ################## This module implements the SASLprep (`RFC 4013`_) stringprep profile. .. autofunction:: saslprep .. _RFC 4013: https://tools.ietf.org/html/rfc4013 """ import stringprep import unicodedata _nodeprep_prohibited = frozenset("\"&'/:<>@") def is_RandALCat(c): return unicodedata.bidirectional(c) in ("R", "AL") def is_LCat(c): return unicodedata.bidirectional(c) == "L" def check_against_tables(chars, tables): """ Perform a check against the table predicates in `tables`. `tables` must be a reusable iterable containing characteristic functions of character sets, that is, functions which return :data:`True` if the character is in the table. The function returns the first character occuring in any of the tables or :data:`None` if no character matches. """ for c in chars: if any(in_table(c) for in_table in tables): return c return None def do_normalization(chars): """ Perform the stringprep normalization. Operates in-place on a list of unicode characters provided in `chars`. """ chars[:] = list(unicodedata.normalize("NFKC", "".join(chars))) def check_bidi(chars): """ Check proper bidirectionality as per stringprep. Operates on a list of unicode characters provided in `chars`. """ # the empty string is valid, as it cannot violate the RandALCat constraints if not chars: return # first_is_RorAL = unicodedata.bidirectional(chars[0]) in {"R", "AL"} # if first_is_RorAL: has_RandALCat = any(is_RandALCat(c) for c in chars) if not has_RandALCat: return has_LCat = any(is_LCat(c) for c in chars) if has_LCat: raise ValueError("L and R/AL characters must not occur in the same" " string") if not is_RandALCat(chars[0]) or not is_RandALCat(chars[-1]): raise ValueError("R/AL string must start and end with R/AL character.") def check_prohibited_output(chars, bad_tables): """ Check against prohibited output, by checking whether any of the characters from `chars` are in any of the `bad_tables`. Operates in-place on a list of code points from `chars`. """ violator = check_against_tables(chars, bad_tables) if violator is not None: raise ValueError("Input contains invalid unicode codepoint: " "U+{:04x}".format(ord(violator))) def check_unassigned(chars, bad_tables): """ Check that `chars` does not contain any unassigned code points as per the given list of `bad_tables`. Operates on a list of unicode code points provided in `chars`. """ bad_tables = ( stringprep.in_table_a1,) violator = check_against_tables(chars, bad_tables) if violator is not None: raise ValueError("Input contains unassigned code point: " "U+{:04x}".format(ord(violator))) def _saslprep_do_mapping(chars): """ Perform the stringprep mapping step of SASLprep. Operates in-place on a list of unicode characters provided in `chars`. """ i = 0 while i < len(chars): c = chars[i] if stringprep.in_table_c12(c): chars[i] = "\u0020" elif stringprep.in_table_b1(c): del chars[i] continue i += 1 def saslprep(string, allow_unassigned=False): """ Process the given `string` using the SASLprep profile. In the error cases defined in `RFC 3454`_ (stringprep), a :class:`ValueError` is raised. """ chars = list(string) _saslprep_do_mapping(chars) do_normalization(chars) check_prohibited_output( chars, ( stringprep.in_table_c12, stringprep.in_table_c21, stringprep.in_table_c22, stringprep.in_table_c3, stringprep.in_table_c4, stringprep.in_table_c5, stringprep.in_table_c6, stringprep.in_table_c7, stringprep.in_table_c8, stringprep.in_table_c9 ) ) check_bidi(chars) if not allow_unassigned: check_unassigned( chars, ( stringprep.in_table_a1, ) ) return "".join(chars) def trace(string): """ Implement the ``trace`` profile specified in :rfc:`4505`. """ check_prohibited_output( string, ( stringprep.in_table_c21, stringprep.in_table_c22, stringprep.in_table_c3, stringprep.in_table_c4, stringprep.in_table_c5, stringprep.in_table_c6, stringprep.in_table_c8, stringprep.in_table_c9, ) ) check_bidi(string) return string python3-aiosasl/aiosasl/version.py0000644000175000017500000000207613320664156020112 0ustar horazonthorazont######################################################################## # File name: version.py # This file is part of: aiosasl # # LICENSE # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Lesser 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 # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this program. If not, see # . # ######################################################################## version_info = (0, 3, 1, None) __version__ = ".".join(map(str, version_info[:3])) + ("-"+version_info[3] if version_info[3] else "") version = __version__ python3-aiosasl/Makefile0000644000175000017500000000027313320664156016055 0ustar horazonthorazontSPHINXBUILD ?= sphinx-build-3 docs-html: cd docs; $(MAKE) SPHINXBUILD=$(SPHINXBUILD) html docs-view-html: docs-html xdg-open docs/sphinx-data/build/html/index.html .PHONY: docs-html python3-aiosasl/setup.py0000644000175000017500000000212613320664156016126 0ustar horazonthorazont#!/usr/bin/env python3 import os.path import runpy from setuptools import setup, find_packages here = os.path.abspath(os.path.dirname(__file__)) with open(os.path.join(here, "README.rst"), encoding="utf-8") as f: long_description = f.read() version_mod = runpy.run_path("aiosasl/version.py") setup( name="aiosasl", version=version_mod["__version__"], description="Pure-python, protocol agnostic SASL library for asyncio", long_description=long_description, url="https://github.com/horazont/aiosasl", author="Jonas Wielicki", author_email="jonas@wielicki.name", license="GPL", classifiers=[ "Development Status :: 3 - Alpha", "Intended Audience :: Developers", "Programming Language :: Python :: 3 :: Only", "Programming Language :: Python :: 3.3", "Programming Language :: Python :: 3.4", "Programming Language :: Python :: 3.5", "License :: OSI Approved :: GNU Lesser General Public License v3 or later (LGPLv3+)", ], keywords="asyncio sasl library", packages=find_packages(exclude=["tests*"]) ) python3-aiosasl/docs/0000755000175000017500000000000013320664156015343 5ustar horazonthorazontpython3-aiosasl/docs/.gitignore0000644000175000017500000000002313320664156017326 0ustar horazonthorazontsphinx-data/build/ python3-aiosasl/docs/conf.py0000644000175000017500000002134713320664156016651 0ustar horazonthorazont#!/usr/bin/env python3 # -*- coding: utf-8 -*- # # aiosasl documentation build configuration file, created by # sphinx-quickstart on Wed Dec 9 12:45:22 2015. # # This file is execfile()d with the current directory set to its # containing dir. # # Note that not all possible configuration values are present in this # autogenerated file. # # All configuration values have a default; values that are commented out # serve to show the default. import sys import os import alabaster import runpy # If extensions (or modules to document with autodoc) are in another directory, # add these directories to sys.path here. If the directory is relative to the # documentation root, use os.path.abspath to make it absolute, like shown here. sys.path.insert(0, os.path.abspath('..')) # -- General configuration ------------------------------------------------ # If your documentation needs a minimal Sphinx version, state it here. #needs_sphinx = '1.0' # Add any Sphinx extension module names here, as strings. They can be # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom # ones. extensions = [ 'sphinx.ext.autodoc', 'sphinx.ext.intersphinx', 'sphinx.ext.viewcode', 'sphinx.ext.autosummary', ] # Add any paths that contain templates here, relative to this directory. templates_path = ['sphinx-data/templates'] # The suffix of source filenames. source_suffix = '.rst' # The encoding of source files. #source_encoding = 'utf-8-sig' # The master toctree document. master_doc = 'index' # General information about the project. project = 'aiosasl' copyright = '2015, Jonas Wielicki' version_mod = runpy.run_path("../aiosasl/version.py") # The version info for the project you're documenting, acts as replacement for # |version| and |release|, also used in various other places throughout the # built documents. # # The short X.Y version. version = ".".join(map(str, version_mod["version_info"][:2])) # The full version, including alpha/beta/rc tags. release = version_mod["__version__"] del version_mod # The language for content autogenerated by Sphinx. Refer to documentation # for a list of supported languages. #language = None # There are two options for replacing |today|: either, you set today to some # non-false value, then it is used: #today = '' # Else, today_fmt is used as the format for a strftime call. #today_fmt = '%B %d, %Y' # List of patterns, relative to source directory, that match files and # directories to ignore when looking for source files. exclude_patterns = ['sphinx-data/build'] # The reST default role (used for this markup: `text`) to use for all # documents. #default_role = None # If true, '()' will be appended to :func: etc. cross-reference text. #add_function_parentheses = True # If true, the current module name will be prepended to all description # unit titles (such as .. function::). #add_module_names = True # If true, sectionauthor and moduleauthor directives will be shown in the # output. They are ignored by default. #show_authors = False # The name of the Pygments (syntax highlighting) style to use. pygments_style = 'sphinx' # A list of ignored prefixes for module index sorting. #modindex_common_prefix = [] # If true, keep warnings as "system message" paragraphs in the built documents. #keep_warnings = False # -- Options for HTML output ---------------------------------------------- # The theme to use for HTML and HTML Help pages. See the documentation for # a list of builtin themes. html_theme_path = [alabaster.get_path()] html_theme = 'alabaster' # Theme options are theme-specific and customize the look and feel of a theme # further. For a list of options available for each theme, see the # documentation. html_theme_options = { "github_button": "true", "github_repo": "aiosasl", "github_user": "horazont", "font_size": "12pt", } html_sidebars = { '**': [ 'about.html', 'localtoc.html', 'relations.html', 'searchbox.html', 'donate.html', ] } # Add any paths that contain custom themes here, relative to this directory. #html_theme_path = [] # The name for this set of Sphinx documents. If None, it defaults to # " v documentation". #html_title = None # A shorter title for the navigation bar. Default is the same as html_title. #html_short_title = None # The name of an image file (relative to this directory) to place at the top # of the sidebar. #html_logo = None # The name of an image file (within the static path) to use as favicon of the # docs. This file should be a Windows icon file (.ico) being 16x16 or 32x32 # pixels large. #html_favicon = None # Add any paths that contain custom static files (such as style sheets) here, # relative to this directory. They are copied after the builtin static files, # so a file named "default.css" will overwrite the builtin "default.css". html_static_path = ['sphinx-data/static'] # Add any extra paths that contain custom files (such as robots.txt or # .htaccess) here, relative to this directory. These files are copied # directly to the root of the documentation. #html_extra_path = [] # If not '', a 'Last updated on:' timestamp is inserted at every page bottom, # using the given strftime format. #html_last_updated_fmt = '%b %d, %Y' # If true, SmartyPants will be used to convert quotes and dashes to # typographically correct entities. #html_use_smartypants = True # Custom sidebar templates, maps document names to template names. #html_sidebars = {} # Additional templates that should be rendered to pages, maps page names to # template names. #html_additional_pages = {} # If false, no module index is generated. #html_domain_indices = True # If false, no index is generated. #html_use_index = True # If true, the index is split into individual pages for each letter. #html_split_index = False # If true, links to the reST sources are added to the pages. #html_show_sourcelink = True # If true, "Created using Sphinx" is shown in the HTML footer. Default is True. #html_show_sphinx = True # If true, "(C) Copyright ..." is shown in the HTML footer. Default is True. #html_show_copyright = True # If true, an OpenSearch description file will be output, and all pages will # contain a tag referring to it. The value of this option must be the # base URL from which the finished HTML is served. #html_use_opensearch = '' # This is the file name suffix for HTML files (e.g. ".xhtml"). #html_file_suffix = None # Output file base name for HTML help builder. htmlhelp_basename = 'aiosasldoc' # -- Options for LaTeX output --------------------------------------------- latex_elements = { # The paper size ('letterpaper' or 'a4paper'). #'papersize': 'letterpaper', # The font size ('10pt', '11pt' or '12pt'). #'pointsize': '10pt', # Additional stuff for the LaTeX preamble. #'preamble': '', } # Grouping the document tree into LaTeX files. List of tuples # (source start file, target name, title, # author, documentclass [howto, manual, or own class]). latex_documents = [ ('index', 'aiosasl.tex', 'aiosasl Documentation', 'Jonas Wielicki', 'manual'), ] # The name of an image file (relative to this directory) to place at the top of # the title page. #latex_logo = None # For "manual" documents, if this is true, then toplevel headings are parts, # not chapters. #latex_use_parts = False # If true, show page references after internal links. #latex_show_pagerefs = False # If true, show URL addresses after external links. #latex_show_urls = False # Documents to append as an appendix to all manuals. #latex_appendices = [] # If false, no module index is generated. #latex_domain_indices = True # -- Options for manual page output --------------------------------------- # One entry per manual page. List of tuples # (source start file, name, description, authors, manual section). man_pages = [ ('index', 'aiosasl', 'aiosasl Documentation', ['Jonas Wielicki'], 1) ] # If true, show URL addresses after external links. #man_show_urls = False # -- Options for Texinfo output ------------------------------------------- # Grouping the document tree into Texinfo files. List of tuples # (source start file, target name, title, author, # dir menu entry, description, category) texinfo_documents = [ ('index', 'aiosasl', 'aiosasl Documentation', 'Jonas Wielicki', 'aiosasl', 'One line description of project.', 'Miscellaneous'), ] # Documents to append as an appendix to all manuals. #texinfo_appendices = [] # If false, no module index is generated. #texinfo_domain_indices = True # How to display URL addresses: 'footnote', 'no', or 'inline'. #texinfo_show_urls = 'footnote' # If true, do not generate a @detailmenu in the "Top" node's menu. #texinfo_no_detailmenu = False # Example configuration for intersphinx: refer to the Python standard library. intersphinx_mapping = {'https://docs.python.org/3/': None} python3-aiosasl/docs/index.rst0000644000175000017500000000150113320664156017201 0ustar horazonthorazont.. aiosasl documentation master file, created by sphinx-quickstart on Wed Dec 9 12:45:22 2015. You can adapt this file completely to your liking, but it should at least contain the root `toctree` directive. Welcome to aiosasl's documentation! =================================== :mod:`aiosasl` is a generic SASL implementation for use with :mod:`asyncio` protocols. It makes very few assumptions about the protocol which uses SASL, making it usable in different contexts. The assumptions are: * It uses SASL, i.e. you can perform SASL initiation, responses and abortions. * Those actions can be encapsulated in :mod:`asyncio` coroutines which return the server response. API Reference ============= .. automodule:: aiosasl Indices and tables ================== * :ref:`genindex` * :ref:`modindex` * :ref:`search` python3-aiosasl/docs/Makefile0000644000175000017500000001517113320664156017010 0ustar horazonthorazont# Makefile for Sphinx documentation # # You can set these variables from the command line. 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PAPEROPT_a4 = -D latex_paper_size=a4 PAPEROPT_letter = -D latex_paper_size=letter ALLSPHINXOPTS = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) . # the i18n builder cannot share the environment and doctrees with the others I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) . .PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp devhelp epub latex latexpdf text man changes linkcheck doctest gettext help: @echo "Please use \`make ' where is one of" @echo " html to make standalone HTML files" @echo " dirhtml to make HTML files named index.html in directories" @echo " singlehtml to make a single large HTML file" @echo " pickle to make pickle files" @echo " json to make JSON files" @echo " htmlhelp to make HTML files and a HTML help project" @echo " qthelp to make HTML files and a qthelp project" @echo " devhelp to make HTML files and a Devhelp project" @echo " epub to make an epub" @echo " latex to make LaTeX files, you can set PAPER=a4 or PAPER=letter" @echo " latexpdf to make LaTeX files and run them through pdflatex" @echo " latexpdfja to make LaTeX files and run them through platex/dvipdfmx" @echo " text to make text files" @echo " man to make manual pages" @echo " texinfo to make Texinfo files" @echo " info to make Texinfo files and run them through makeinfo" @echo " gettext to make PO message catalogs" @echo " changes to make an overview of all changed/added/deprecated items" @echo " xml to make Docutils-native XML files" @echo " pseudoxml to make pseudoxml-XML files for display purposes" @echo " linkcheck to check all external links for integrity" @echo " doctest to run all doctests embedded in the documentation (if enabled)" clean: rm -rf $(BUILDDIR)/* html: $(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html @echo @echo "Build finished. The HTML pages are in $(BUILDDIR)/html." dirhtml: $(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml @echo @echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml." singlehtml: $(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml @echo @echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml." pickle: $(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle @echo @echo "Build finished; now you can process the pickle files." json: $(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json @echo @echo "Build finished; now you can process the JSON files." htmlhelp: $(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp @echo @echo "Build finished; now you can run HTML Help Workshop with the" \ ".hhp project file in $(BUILDDIR)/htmlhelp." qthelp: $(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp @echo @echo "Build finished; now you can run "qcollectiongenerator" with the" \ ".qhcp project file in $(BUILDDIR)/qthelp, like this:" @echo "# qcollectiongenerator $(BUILDDIR)/qthelp/aiosasl.qhcp" @echo "To view the help file:" @echo "# assistant -collectionFile $(BUILDDIR)/qthelp/aiosasl.qhc" devhelp: $(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp @echo @echo "Build finished." @echo "To view the help file:" @echo "# mkdir -p $$HOME/.local/share/devhelp/aiosasl" @echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/aiosasl" @echo "# devhelp" epub: $(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub @echo @echo "Build finished. The epub file is in $(BUILDDIR)/epub." latex: $(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex @echo @echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex." @echo "Run \`make' in that directory to run these through (pdf)latex" \ "(use \`make latexpdf' here to do that automatically)." latexpdf: $(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex @echo "Running LaTeX files through pdflatex..." $(MAKE) -C $(BUILDDIR)/latex all-pdf @echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex." latexpdfja: $(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex @echo "Running LaTeX files through platex and dvipdfmx..." $(MAKE) -C $(BUILDDIR)/latex all-pdf-ja @echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex." text: $(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text @echo @echo "Build finished. The text files are in $(BUILDDIR)/text." man: $(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man @echo @echo "Build finished. The manual pages are in $(BUILDDIR)/man." texinfo: $(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo @echo @echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo." @echo "Run \`make' in that directory to run these through makeinfo" \ "(use \`make info' here to do that automatically)." info: $(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo @echo "Running Texinfo files through makeinfo..." make -C $(BUILDDIR)/texinfo info @echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo." gettext: $(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale @echo @echo "Build finished. The message catalogs are in $(BUILDDIR)/locale." changes: $(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes @echo @echo "The overview file is in $(BUILDDIR)/changes." linkcheck: $(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck @echo @echo "Link check complete; look for any errors in the above output " \ "or in $(BUILDDIR)/linkcheck/output.txt." doctest: $(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest @echo "Testing of doctests in the sources finished, look at the " \ "results in $(BUILDDIR)/doctest/output.txt." xml: $(SPHINXBUILD) -b xml $(ALLSPHINXOPTS) $(BUILDDIR)/xml @echo @echo "Build finished. The XML files are in $(BUILDDIR)/xml." pseudoxml: $(SPHINXBUILD) -b pseudoxml $(ALLSPHINXOPTS) $(BUILDDIR)/pseudoxml @echo @echo "Build finished. The pseudo-XML files are in $(BUILDDIR)/pseudoxml."