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# Copyright 2019 The Matrix.org Foundation C.I.C.
#
# 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.
import json
import logging
from io import BytesIO, StringIO
from unittest.mock import Mock, patch
from twisted.web.server import Request
from synapse.http.site import SynapseRequest
from synapse.logging._terse_json import JsonFormatter, TerseJsonFormatter
from synapse.logging.context import LoggingContext, LoggingContextFilter
from tests.logging import LoggerCleanupMixin
from tests.server import FakeChannel
from tests.unittest import TestCase
class TerseJsonTestCase(LoggerCleanupMixin, TestCase):
def setUp(self):
self.output = StringIO()
def get_log_line(self):
# One log message, with a single trailing newline.
data = self.output.getvalue()
logs = data.splitlines()
self.assertEqual(len(logs), 1)
self.assertEqual(data.count("\n"), 1)
return json.loads(logs[0])
def test_terse_json_output(self):
"""
The Terse JSON formatter converts log messages to JSON.
"""
handler = logging.StreamHandler(self.output)
handler.setFormatter(TerseJsonFormatter())
logger = self.get_logger(handler)
logger.info("Hello there, %s!", "wally")
log = self.get_log_line()
# The terse logger should give us these keys.
expected_log_keys = [
"log",
"time",
"level",
"namespace",
]
self.assertCountEqual(log.keys(), expected_log_keys)
self.assertEqual(log["log"], "Hello there, wally!")
def test_extra_data(self):
"""
Additional information can be included in the structured logging.
"""
handler = logging.StreamHandler(self.output)
handler.setFormatter(TerseJsonFormatter())
logger = self.get_logger(handler)
logger.info(
"Hello there, %s!", "wally", extra={"foo": "bar", "int": 3, "bool": True}
)
log = self.get_log_line()
# The terse logger should give us these keys.
expected_log_keys = [
"log",
"time",
"level",
"namespace",
# The additional keys given via extra.
"foo",
"int",
"bool",
]
self.assertCountEqual(log.keys(), expected_log_keys)
# Check the values of the extra fields.
self.assertEqual(log["foo"], "bar")
self.assertEqual(log["int"], 3)
self.assertIs(log["bool"], True)
def test_json_output(self):
"""
The Terse JSON formatter converts log messages to JSON.
"""
handler = logging.StreamHandler(self.output)
handler.setFormatter(JsonFormatter())
logger = self.get_logger(handler)
logger.info("Hello there, %s!", "wally")
log = self.get_log_line()
# The terse logger should give us these keys.
expected_log_keys = [
"log",
"level",
"namespace",
]
self.assertCountEqual(log.keys(), expected_log_keys)
self.assertEqual(log["log"], "Hello there, wally!")
def test_with_context(self):
"""
The logging context should be added to the JSON response.
"""
handler = logging.StreamHandler(self.output)
handler.setFormatter(JsonFormatter())
handler.addFilter(LoggingContextFilter())
logger = self.get_logger(handler)
with LoggingContext("name"):
logger.info("Hello there, %s!", "wally")
log = self.get_log_line()
# The terse logger should give us these keys.
expected_log_keys = [
"log",
"level",
"namespace",
"request",
]
self.assertCountEqual(log.keys(), expected_log_keys)
self.assertEqual(log["log"], "Hello there, wally!")
self.assertTrue(log["request"].startswith("name@"))
def test_with_request_context(self):
"""
Information from the logging context request should be added to the JSON response.
"""
handler = logging.StreamHandler(self.output)
handler.setFormatter(JsonFormatter())
handler.addFilter(LoggingContextFilter())
logger = self.get_logger(handler)
# A full request isn't needed here.
site = Mock(spec=["site_tag", "server_version_string", "getResourceFor"])
site.site_tag = "test-site"
site.server_version_string = "Server v1"
request = SynapseRequest(FakeChannel(site, None))
# Call requestReceived to finish instantiating the object.
request.content = BytesIO()
# Partially skip some of the internal processing of SynapseRequest.
request._started_processing = Mock()
request.request_metrics = Mock(spec=["name"])
with patch.object(Request, "render"):
request.requestReceived(b"POST", b"/_matrix/client/versions", b"1.1")
# Also set the requester to ensure the processing works.
request.requester = "@foo:test"
with LoggingContext(parent_context=request.logcontext):
logger.info("Hello there, %s!", "wally")
log = self.get_log_line()
# The terse logger includes additional request information, if possible.
expected_log_keys = [
"log",
"level",
"namespace",
"request",
"ip_address",
"site_tag",
"requester",
"authenticated_entity",
"method",
"url",
"protocol",
"user_agent",
]
self.assertCountEqual(log.keys(), expected_log_keys)
self.assertEqual(log["log"], "Hello there, wally!")
self.assertTrue(log["request"].startswith("POST-"))
self.assertEqual(log["ip_address"], "127.0.0.1")
self.assertEqual(log["site_tag"], "test-site")
self.assertEqual(log["requester"], "@foo:test")
self.assertEqual(log["authenticated_entity"], "@foo:test")
self.assertEqual(log["method"], "POST")
self.assertEqual(log["url"], "/_matrix/client/versions")
self.assertEqual(log["protocol"], "1.1")
self.assertEqual(log["user_agent"], "")
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