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# Copyright 2013-present MongoDB, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Authentication Tests."""
from __future__ import annotations
import asyncio
import os
import sys
import threading
from urllib.parse import quote_plus
sys.path[0:0] = [""]
import pytest
from pymongo import MongoClient, monitoring
from pymongo.auth_shared import _build_credentials_tuple
from pymongo.errors import OperationFailure
from pymongo.hello import HelloCompat
from pymongo.read_preferences import ReadPreference
from pymongo.saslprep import HAVE_STRINGPREP
from pymongo.synchronous.auth import HAVE_KERBEROS, _canonicalize_hostname
from test import (
IntegrationTest,
PyMongoTestCase,
SkipTest,
client_context,
unittest,
)
from test.utils_shared import AllowListEventListener, delay, ignore_deprecations
_IS_SYNC = True
pytestmark = pytest.mark.auth
# YOU MUST RUN KINIT BEFORE RUNNING GSSAPI TESTS ON UNIX.
GSSAPI_HOST = os.environ.get("GSSAPI_HOST")
GSSAPI_PORT = int(os.environ.get("GSSAPI_PORT", "27017"))
GSSAPI_PRINCIPAL = os.environ.get("GSSAPI_PRINCIPAL")
GSSAPI_SERVICE_NAME = os.environ.get("GSSAPI_SERVICE_NAME", "mongodb")
GSSAPI_CANONICALIZE = os.environ.get("GSSAPI_CANONICALIZE", "false")
GSSAPI_SERVICE_REALM = os.environ.get("GSSAPI_SERVICE_REALM")
GSSAPI_PASS = os.environ.get("GSSAPI_PASS")
GSSAPI_DB = os.environ.get("GSSAPI_DB", "test")
SASL_HOST = os.environ.get("SASL_HOST")
SASL_PORT = int(os.environ.get("SASL_PORT", "27017"))
SASL_USER = os.environ.get("SASL_USER")
SASL_PASS = os.environ.get("SASL_PASS")
SASL_DB = os.environ.get("SASL_DB", "$external")
class AutoAuthenticateThread(threading.Thread):
"""Used in testing threaded authentication.
This does collection.find_one() with a 1-second delay to ensure it must
check out and authenticate multiple connections from the pool concurrently.
:Parameters:
`collection`: An auth-protected collection containing one document.
"""
def __init__(self, collection):
super().__init__()
self.collection = collection
self.success = False
def run(self):
assert self.collection.find_one({"$where": delay(1)}) is not None
self.success = True
class TestGSSAPI(PyMongoTestCase):
mech_properties: str
service_realm_required: bool
@classmethod
def setUpClass(cls):
if not HAVE_KERBEROS:
raise SkipTest("Kerberos module not available.")
if not GSSAPI_HOST or not GSSAPI_PRINCIPAL:
raise SkipTest("Must set GSSAPI_HOST and GSSAPI_PRINCIPAL to test GSSAPI")
cls.service_realm_required = (
GSSAPI_SERVICE_REALM is not None and GSSAPI_SERVICE_REALM not in GSSAPI_PRINCIPAL
)
mech_properties = dict(
SERVICE_NAME=GSSAPI_SERVICE_NAME, CANONICALIZE_HOST_NAME=GSSAPI_CANONICALIZE
)
if GSSAPI_SERVICE_REALM is not None:
mech_properties["SERVICE_REALM"] = GSSAPI_SERVICE_REALM
cls.mech_properties = mech_properties
def test_credentials_hashing(self):
# GSSAPI credentials are properly hashed.
creds0 = _build_credentials_tuple("GSSAPI", None, "user", "pass", {}, None)
creds1 = _build_credentials_tuple(
"GSSAPI", None, "user", "pass", {"authmechanismproperties": {"SERVICE_NAME": "A"}}, None
)
creds2 = _build_credentials_tuple(
"GSSAPI", None, "user", "pass", {"authmechanismproperties": {"SERVICE_NAME": "A"}}, None
)
creds3 = _build_credentials_tuple(
"GSSAPI", None, "user", "pass", {"authmechanismproperties": {"SERVICE_NAME": "B"}}, None
)
self.assertEqual(1, len({creds1, creds2}))
self.assertEqual(3, len({creds0, creds1, creds2, creds3}))
@ignore_deprecations
def test_gssapi_simple(self):
assert GSSAPI_PRINCIPAL is not None
if GSSAPI_PASS is not None:
uri = "mongodb://%s:%s@%s:%d/?authMechanism=GSSAPI" % (
quote_plus(GSSAPI_PRINCIPAL),
GSSAPI_PASS,
GSSAPI_HOST,
GSSAPI_PORT,
)
else:
uri = "mongodb://%s@%s:%d/?authMechanism=GSSAPI" % (
quote_plus(GSSAPI_PRINCIPAL),
GSSAPI_HOST,
GSSAPI_PORT,
)
if not self.service_realm_required:
# Without authMechanismProperties.
client = self.simple_client(
GSSAPI_HOST,
GSSAPI_PORT,
username=GSSAPI_PRINCIPAL,
password=GSSAPI_PASS,
authMechanism="GSSAPI",
)
client[GSSAPI_DB].collection.find_one()
# Log in using URI, without authMechanismProperties.
client = self.simple_client(uri)
client[GSSAPI_DB].collection.find_one()
# Authenticate with authMechanismProperties.
client = self.simple_client(
GSSAPI_HOST,
GSSAPI_PORT,
username=GSSAPI_PRINCIPAL,
password=GSSAPI_PASS,
authMechanism="GSSAPI",
authMechanismProperties=self.mech_properties,
)
client[GSSAPI_DB].collection.find_one()
# Log in using URI, with authMechanismProperties.
mech_properties_str = ""
for key, value in self.mech_properties.items():
mech_properties_str += f"{key}:{value},"
mech_uri = uri + f"&authMechanismProperties={mech_properties_str[:-1]}"
client = self.simple_client(mech_uri)
client[GSSAPI_DB].collection.find_one()
set_name = client_context.replica_set_name
if set_name:
if not self.service_realm_required:
# Without authMechanismProperties
client = self.simple_client(
GSSAPI_HOST,
GSSAPI_PORT,
username=GSSAPI_PRINCIPAL,
password=GSSAPI_PASS,
authMechanism="GSSAPI",
replicaSet=set_name,
)
client[GSSAPI_DB].list_collection_names()
uri = uri + f"&replicaSet={set_name!s}"
client = self.simple_client(uri)
client[GSSAPI_DB].list_collection_names()
# With authMechanismProperties
client = self.simple_client(
GSSAPI_HOST,
GSSAPI_PORT,
username=GSSAPI_PRINCIPAL,
password=GSSAPI_PASS,
authMechanism="GSSAPI",
authMechanismProperties=self.mech_properties,
replicaSet=set_name,
)
client[GSSAPI_DB].list_collection_names()
mech_uri = mech_uri + f"&replicaSet={set_name!s}"
client = self.simple_client(mech_uri)
client[GSSAPI_DB].list_collection_names()
@ignore_deprecations
@client_context.require_sync
def test_gssapi_threaded(self):
client = self.simple_client(
GSSAPI_HOST,
GSSAPI_PORT,
username=GSSAPI_PRINCIPAL,
password=GSSAPI_PASS,
authMechanism="GSSAPI",
authMechanismProperties=self.mech_properties,
)
# Authentication succeeded?
client.server_info()
db = client[GSSAPI_DB]
# Need one document in the collection. AutoAuthenticateThread does
# collection.find_one with a 1-second delay, forcing it to check out
# multiple connections from the pool concurrently, proving that
# auto-authentication works with GSSAPI.
collection = db.coll
if not collection.count_documents({}):
try:
collection.drop()
collection.insert_one({"_id": 1})
except OperationFailure:
raise SkipTest("User must be able to write.")
threads = []
for _ in range(4):
threads.append(AutoAuthenticateThread(collection))
for thread in threads:
thread.start()
for thread in threads:
thread.join()
self.assertTrue(thread.success)
set_name = client_context.replica_set_name
if set_name:
client = self.simple_client(
GSSAPI_HOST,
GSSAPI_PORT,
username=GSSAPI_PRINCIPAL,
password=GSSAPI_PASS,
authMechanism="GSSAPI",
authMechanismProperties=self.mech_properties,
replicaSet=set_name,
)
# Succeeded?
client.server_info()
threads = []
for _ in range(4):
threads.append(AutoAuthenticateThread(collection))
for thread in threads:
thread.start()
for thread in threads:
thread.join()
self.assertTrue(thread.success)
def test_gssapi_canonicalize_host_name(self):
# Test the low level method.
assert GSSAPI_HOST is not None
result = _canonicalize_hostname(GSSAPI_HOST, "forward")
if "compute-1.amazonaws.com" not in result:
self.assertEqual(result, GSSAPI_HOST)
result = _canonicalize_hostname(GSSAPI_HOST, "forwardAndReverse")
self.assertEqual(result, GSSAPI_HOST)
# Use the equivalent named CANONICALIZE_HOST_NAME.
props = self.mech_properties.copy()
if props["CANONICALIZE_HOST_NAME"] == "true":
props["CANONICALIZE_HOST_NAME"] = "forwardAndReverse"
else:
props["CANONICALIZE_HOST_NAME"] = "none"
client = self.simple_client(
GSSAPI_HOST,
GSSAPI_PORT,
username=GSSAPI_PRINCIPAL,
password=GSSAPI_PASS,
authMechanism="GSSAPI",
authMechanismProperties=props,
)
client.server_info()
def test_gssapi_host_name(self):
props = self.mech_properties
props["SERVICE_HOST"] = "example.com"
# Authenticate with authMechanismProperties.
client = self.simple_client(
GSSAPI_HOST,
GSSAPI_PORT,
username=GSSAPI_PRINCIPAL,
password=GSSAPI_PASS,
authMechanism="GSSAPI",
authMechanismProperties=self.mech_properties,
)
with self.assertRaises(OperationFailure):
client.server_info()
props["SERVICE_HOST"] = GSSAPI_HOST
client = self.simple_client(
GSSAPI_HOST,
GSSAPI_PORT,
username=GSSAPI_PRINCIPAL,
password=GSSAPI_PASS,
authMechanism="GSSAPI",
authMechanismProperties=self.mech_properties,
)
client.server_info()
class TestSASLPlain(PyMongoTestCase):
@classmethod
def setUpClass(cls):
if not SASL_HOST or not SASL_USER or not SASL_PASS:
raise SkipTest("Must set SASL_HOST, SASL_USER, and SASL_PASS to test SASL")
def test_sasl_plain(self):
client = self.simple_client(
SASL_HOST,
SASL_PORT,
username=SASL_USER,
password=SASL_PASS,
authSource=SASL_DB,
authMechanism="PLAIN",
)
client.ldap.coll.find_one()
assert SASL_USER is not None
assert SASL_PASS is not None
uri = "mongodb://%s:%s@%s:%d/?authMechanism=PLAIN;authSource=%s" % (
quote_plus(SASL_USER),
quote_plus(SASL_PASS),
SASL_HOST,
SASL_PORT,
SASL_DB,
)
client = self.simple_client(uri)
client.ldap.coll.find_one()
set_name = client_context.replica_set_name
if set_name:
client = self.simple_client(
SASL_HOST,
SASL_PORT,
replicaSet=set_name,
username=SASL_USER,
password=SASL_PASS,
authSource=SASL_DB,
authMechanism="PLAIN",
)
client.ldap.coll.find_one()
uri = "mongodb://%s:%s@%s:%d/?authMechanism=PLAIN;authSource=%s;replicaSet=%s" % (
quote_plus(SASL_USER),
quote_plus(SASL_PASS),
SASL_HOST,
SASL_PORT,
SASL_DB,
str(set_name),
)
client = self.simple_client(uri)
client.ldap.coll.find_one()
def test_sasl_plain_bad_credentials(self):
def auth_string(user, password):
uri = "mongodb://%s:%s@%s:%d/?authMechanism=PLAIN;authSource=%s" % (
quote_plus(user),
quote_plus(password),
SASL_HOST,
SASL_PORT,
SASL_DB,
)
return uri
bad_user = self.simple_client(auth_string("not-user", SASL_PASS))
bad_pwd = self.simple_client(auth_string(SASL_USER, "not-pwd"))
# OperationFailure raised upon connecting.
with self.assertRaises(OperationFailure):
bad_user.admin.command("ping")
with self.assertRaises(OperationFailure):
bad_pwd.admin.command("ping")
class TestSCRAMSHA1(IntegrationTest):
@client_context.require_auth
def setUp(self):
super().setUp()
client_context.create_user("pymongo_test", "user", "pass", roles=["userAdmin", "readWrite"])
def tearDown(self):
client_context.drop_user("pymongo_test", "user")
super().tearDown()
@client_context.require_no_fips
def test_scram_sha1(self):
host, port = client_context.host, client_context.port
client = self.rs_or_single_client_noauth(
"mongodb://user:pass@%s:%d/pymongo_test?authMechanism=SCRAM-SHA-1" % (host, port)
)
client.pymongo_test.command("dbstats")
if client_context.is_rs:
uri = (
"mongodb://user:pass"
"@%s:%d/pymongo_test?authMechanism=SCRAM-SHA-1"
"&replicaSet=%s" % (host, port, client_context.replica_set_name)
)
client = self.single_client_noauth(uri)
client.pymongo_test.command("dbstats")
db = client.get_database("pymongo_test", read_preference=ReadPreference.SECONDARY)
db.command("dbstats")
# https://github.com/mongodb/specifications/blob/master/source/auth/auth.md#scram-sha-256-and-mechanism-negotiation
class TestSCRAM(IntegrationTest):
@client_context.require_auth
@client_context.require_version_min(3, 7, 2)
def setUp(self):
super().setUp()
self._SENSITIVE_COMMANDS = monitoring._SENSITIVE_COMMANDS
monitoring._SENSITIVE_COMMANDS = set()
self.listener = AllowListEventListener("saslStart")
def tearDown(self):
monitoring._SENSITIVE_COMMANDS = self._SENSITIVE_COMMANDS
client_context.client.testscram.command("dropAllUsersFromDatabase")
client_context.client.drop_database("testscram")
super().tearDown()
def test_scram_skip_empty_exchange(self):
listener = AllowListEventListener("saslStart", "saslContinue")
client_context.create_user(
"testscram", "sha256", "pwd", roles=["dbOwner"], mechanisms=["SCRAM-SHA-256"]
)
client = self.rs_or_single_client_noauth(
username="sha256", password="pwd", authSource="testscram", event_listeners=[listener]
)
client.testscram.command("dbstats")
if client_context.version < (4, 4, -1):
# Assert we sent the skipEmptyExchange option.
first_event = listener.started_events[0]
self.assertEqual(first_event.command_name, "saslStart")
self.assertEqual(first_event.command["options"], {"skipEmptyExchange": True})
# Assert the third exchange was skipped on servers that support it.
# Note that the first exchange occurs on the connection handshake.
started = listener.started_command_names()
if client_context.version.at_least(4, 4, -1):
self.assertEqual(started, ["saslContinue"])
else:
self.assertEqual(started, ["saslStart", "saslContinue", "saslContinue"])
@client_context.require_no_fips
def test_scram(self):
# Step 1: create users
client_context.create_user(
"testscram", "sha1", "pwd", roles=["dbOwner"], mechanisms=["SCRAM-SHA-1"]
)
client_context.create_user(
"testscram", "sha256", "pwd", roles=["dbOwner"], mechanisms=["SCRAM-SHA-256"]
)
client_context.create_user(
"testscram",
"both",
"pwd",
roles=["dbOwner"],
mechanisms=["SCRAM-SHA-1", "SCRAM-SHA-256"],
)
# Step 2: verify auth success cases
client = self.rs_or_single_client_noauth(
username="sha1", password="pwd", authSource="testscram"
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
username="sha1", password="pwd", authSource="testscram", authMechanism="SCRAM-SHA-1"
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
username="sha256", password="pwd", authSource="testscram"
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
username="sha256", password="pwd", authSource="testscram", authMechanism="SCRAM-SHA-256"
)
client.testscram.command("dbstats")
# Step 2: SCRAM-SHA-1 and SCRAM-SHA-256
client = self.rs_or_single_client_noauth(
username="both", password="pwd", authSource="testscram", authMechanism="SCRAM-SHA-1"
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
username="both", password="pwd", authSource="testscram", authMechanism="SCRAM-SHA-256"
)
client.testscram.command("dbstats")
self.listener.reset()
client = self.rs_or_single_client_noauth(
username="both", password="pwd", authSource="testscram", event_listeners=[self.listener]
)
client.testscram.command("dbstats")
if client_context.version.at_least(4, 4, -1):
# Speculative authentication in 4.4+ sends saslStart with the
# handshake.
self.assertEqual(self.listener.started_events, [])
else:
started = self.listener.started_events[0]
self.assertEqual(started.command.get("mechanism"), "SCRAM-SHA-256")
# Step 3: verify auth failure conditions
client = self.rs_or_single_client_noauth(
username="sha1", password="pwd", authSource="testscram", authMechanism="SCRAM-SHA-256"
)
with self.assertRaises(OperationFailure):
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
username="sha256", password="pwd", authSource="testscram", authMechanism="SCRAM-SHA-1"
)
with self.assertRaises(OperationFailure):
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
username="not-a-user", password="pwd", authSource="testscram"
)
with self.assertRaises(OperationFailure):
client.testscram.command("dbstats")
if client_context.is_rs:
host, port = client_context.host, client_context.port
uri = "mongodb://both:pwd@%s:%d/testscram?replicaSet=%s" % (
host,
port,
client_context.replica_set_name,
)
client = self.single_client_noauth(uri)
client.testscram.command("dbstats")
db = client.get_database("testscram", read_preference=ReadPreference.SECONDARY)
db.command("dbstats")
@unittest.skipUnless(HAVE_STRINGPREP, "Cannot test without stringprep")
def test_scram_saslprep(self):
# Step 4: test SASLprep
host, port = client_context.host, client_context.port
# Test the use of SASLprep on passwords. For example,
# saslprep('\u2136') becomes 'IV' and saslprep('I\u00ADX')
# becomes 'IX'. SASLprep is only supported when the standard
# library provides stringprep.
client_context.create_user(
"testscram", "\u2168", "\u2163", roles=["dbOwner"], mechanisms=["SCRAM-SHA-256"]
)
client_context.create_user(
"testscram", "IX", "IX", roles=["dbOwner"], mechanisms=["SCRAM-SHA-256"]
)
client = self.rs_or_single_client_noauth(
username="\u2168", password="\u2163", authSource="testscram"
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
username="\u2168",
password="\u2163",
authSource="testscram",
authMechanism="SCRAM-SHA-256",
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
username="\u2168", password="IV", authSource="testscram"
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
username="IX", password="I\u00adX", authSource="testscram"
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
username="IX",
password="I\u00adX",
authSource="testscram",
authMechanism="SCRAM-SHA-256",
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
username="IX", password="IX", authSource="testscram", authMechanism="SCRAM-SHA-256"
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
"mongodb://\u2168:\u2163@%s:%d/testscram" % (host, port)
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
"mongodb://\u2168:IV@%s:%d/testscram" % (host, port)
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth(
"mongodb://IX:I\u00adX@%s:%d/testscram" % (host, port)
)
client.testscram.command("dbstats")
client = self.rs_or_single_client_noauth("mongodb://IX:IX@%s:%d/testscram" % (host, port))
client.testscram.command("dbstats")
def test_cache(self):
client = self.single_client()
credentials = client.options.pool_options._credentials
cache = credentials.cache
self.assertIsNotNone(cache)
self.assertIsNone(cache.data)
# Force authentication.
client.admin.command("ping")
cache = credentials.cache
self.assertIsNotNone(cache)
data = cache.data
self.assertIsNotNone(data)
self.assertEqual(len(data), 4)
ckey, skey, salt, iterations = data
self.assertIsInstance(ckey, bytes)
self.assertIsInstance(skey, bytes)
self.assertIsInstance(salt, bytes)
self.assertIsInstance(iterations, int)
@client_context.require_sync
def test_scram_threaded(self):
coll = client_context.client.db.coll
coll.drop()
coll.insert_one({"_id": 1})
# The first thread to call find() will authenticate
client = self.rs_or_single_client()
coll = client.db.coll
threads = []
for _ in range(4):
threads.append(AutoAuthenticateThread(coll))
for thread in threads:
thread.start()
for thread in threads:
thread.join()
self.assertTrue(thread.success)
class TestAuthURIOptions(IntegrationTest):
@client_context.require_auth
def setUp(self):
super().setUp()
client_context.create_user("admin", "admin", "pass")
client_context.create_user("pymongo_test", "user", "pass", ["userAdmin", "readWrite"])
def tearDown(self):
client_context.drop_user("pymongo_test", "user")
client_context.drop_user("admin", "admin")
super().tearDown()
def test_uri_options(self):
# Test default to admin
host, port = client_context.host, client_context.port
client = self.rs_or_single_client_noauth("mongodb://admin:pass@%s:%d" % (host, port))
self.assertTrue(client.admin.command("dbstats"))
if client_context.is_rs:
uri = "mongodb://admin:pass@%s:%d/?replicaSet=%s" % (
host,
port,
client_context.replica_set_name,
)
client = self.single_client_noauth(uri)
self.assertTrue(client.admin.command("dbstats"))
db = client.get_database("admin", read_preference=ReadPreference.SECONDARY)
self.assertTrue(db.command("dbstats"))
# Test explicit database
uri = "mongodb://user:pass@%s:%d/pymongo_test" % (host, port)
client = self.rs_or_single_client_noauth(uri)
with self.assertRaises(OperationFailure):
client.admin.command("dbstats")
self.assertTrue(client.pymongo_test.command("dbstats"))
if client_context.is_rs:
uri = "mongodb://user:pass@%s:%d/pymongo_test?replicaSet=%s" % (
host,
port,
client_context.replica_set_name,
)
client = self.single_client_noauth(uri)
with self.assertRaises(OperationFailure):
client.admin.command("dbstats")
self.assertTrue(client.pymongo_test.command("dbstats"))
db = client.get_database("pymongo_test", read_preference=ReadPreference.SECONDARY)
self.assertTrue(db.command("dbstats"))
# Test authSource
uri = "mongodb://user:pass@%s:%d/pymongo_test2?authSource=pymongo_test" % (host, port)
client = self.rs_or_single_client_noauth(uri)
with self.assertRaises(OperationFailure):
client.pymongo_test2.command("dbstats")
self.assertTrue(client.pymongo_test.command("dbstats"))
if client_context.is_rs:
uri = (
"mongodb://user:pass@%s:%d/pymongo_test2?replicaSet="
"%s;authSource=pymongo_test" % (host, port, client_context.replica_set_name)
)
client = self.single_client_noauth(uri)
with self.assertRaises(OperationFailure):
client.pymongo_test2.command("dbstats")
self.assertTrue(client.pymongo_test.command("dbstats"))
db = client.get_database("pymongo_test", read_preference=ReadPreference.SECONDARY)
self.assertTrue(db.command("dbstats"))
if __name__ == "__main__":
unittest.main()
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