diff --git a/instrumentation/opentelemetry-instrumentation-django/CHANGELOG.md b/instrumentation/opentelemetry-instrumentation-django/CHANGELOG.md new file mode 100644 index 000000000..36962fbdc --- /dev/null +++ b/instrumentation/opentelemetry-instrumentation-django/CHANGELOG.md @@ -0,0 +1,50 @@ +# Changelog + +## Unreleased + +- Django instrumentation is now enabled by default but can be disabled by setting `OTEL_PYTHON_DJANGO_INSTRUMENT` to `False` ([#1239](https://github.com/open-telemetry/opentelemetry-python/pull/1239)) + +## Version 0.14b0 + +Released 2020-10-13 + +- Changed span name extraction from request to comply semantic convention ([#992](https://github.com/open-telemetry/opentelemetry-python/pull/992)) +- Added support for `OTEL_PYTHON_DJANGO_TRACED_REQUEST_ATTRS` ([#1154](https://github.com/open-telemetry/opentelemetry-python/pull/1154)) +- Added capture of http.route ([#1226](https://github.com/open-telemetry/opentelemetry-python/issues/1226)) +- Add support for tracking http metrics + ([#1230](https://github.com/open-telemetry/opentelemetry-python/pull/1230)) + +## Version 0.13b0 + +Released 2020-09-17 + +- Drop support for Python 3.4 + ([#1099](https://github.com/open-telemetry/opentelemetry-python/pull/1099)) + +## Version 0.12b0 + +Released 2020-08-14 + +- Change package name to opentelemetry-instrumentation-django + ([#961](https://github.com/open-telemetry/opentelemetry-python/pull/961)) +- Update environment variable names, prefix changed from `OPENTELEMETRY` to `OTEL` ([#904](https://github.com/open-telemetry/opentelemetry-python/pull/904)) + +## Version 0.11b0 + +Released 2020-07-28 + +- Use one general exclude list instead of two ([#872](https://github.com/open-telemetry/opentelemetry-python/pull/872)) + +## 0.8b0 + +Released 2020-05-27 + +- Add exclude list for paths and hosts to prevent from tracing + ([#670](https://github.com/open-telemetry/opentelemetry-python/pull/670)) +- Add support for django >= 1.10 (#717) + +## 0.7b1 + +Released 2020-05-12 + +- Initial release diff --git a/instrumentation/opentelemetry-instrumentation-django/LICENSE b/instrumentation/opentelemetry-instrumentation-django/LICENSE new file mode 100644 index 000000000..261eeb9e9 --- /dev/null +++ b/instrumentation/opentelemetry-instrumentation-django/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + 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. diff --git a/instrumentation/opentelemetry-instrumentation-django/MANIFEST.in b/instrumentation/opentelemetry-instrumentation-django/MANIFEST.in new file mode 100644 index 000000000..aed3e3327 --- /dev/null +++ b/instrumentation/opentelemetry-instrumentation-django/MANIFEST.in @@ -0,0 +1,9 @@ +graft src +graft tests +global-exclude *.pyc +global-exclude *.pyo +global-exclude __pycache__/* +include CHANGELOG.md +include MANIFEST.in +include README.rst +include LICENSE diff --git a/instrumentation/opentelemetry-instrumentation-django/README.rst b/instrumentation/opentelemetry-instrumentation-django/README.rst new file mode 100644 index 000000000..a2b98cabf --- /dev/null +++ b/instrumentation/opentelemetry-instrumentation-django/README.rst @@ -0,0 +1,53 @@ +OpenTelemetry Django Tracing +============================ + +|pypi| + +.. |pypi| image:: https://badge.fury.io/py/opentelemetry-instrumentation-django.svg + :target: https://pypi.org/project/opentelemetry-instrumentation-django/ + +This library allows tracing requests for Django applications. + +Installation +------------ + +:: + + pip install opentelemetry-instrumentation-django + +Configuration +------------- + +Exclude lists +************* +To exclude certain URLs from being tracked, set the environment variable ``OTEL_PYTHON_DJANGO_EXCLUDED_URLS`` with comma delimited regexes representing which URLs to exclude. + +For example, + +:: + + export OTEL_PYTHON_DJANGO_EXCLUDED_URLS="client/.*/info,healthcheck" + +will exclude requests such as ``https://site/client/123/info`` and ``https://site/xyz/healthcheck``. + +Request attributes +******************** +To extract certain attributes from Django's request object and use them as span attributes, set the environment variable ``OTEL_PYTHON_DJANGO_TRACED_REQUEST_ATTRS`` to a comma +delimited list of request attribute names. + +For example, + +:: + + export OTEL_PYTHON_DJANGO_TRACED_REQUEST_ATTRS='path_info,content_type' + +will extract path_info and content_type attributes from every traced request and add them as span attritbues. + +Django Request object reference: https://docs.djangoproject.com/en/3.1/ref/request-response/#attributes + +References +---------- + +* `Django `_ +* `OpenTelemetry Instrumentation for Django `_ +* `OpenTelemetry Project `_ diff --git a/instrumentation/opentelemetry-instrumentation-django/setup.cfg b/instrumentation/opentelemetry-instrumentation-django/setup.cfg new file mode 100644 index 000000000..37ef9f2a8 --- /dev/null +++ b/instrumentation/opentelemetry-instrumentation-django/setup.cfg @@ -0,0 +1,56 @@ +# Copyright The OpenTelemetry Authors +# +# 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. +# +[metadata] +name = opentelemetry-instrumentation-django +description = OpenTelemetry Instrumentation for Django +long_description = file: README.rst +long_description_content_type = text/x-rst +author = OpenTelemetry Authors +author_email = cncf-opentelemetry-contributors@lists.cncf.io +url = https://github.com/open-telemetry/opentelemetry-python/tree/master/instrumentation/opentelemetry-instrumentation-django +platforms = any +license = Apache-2.0 +classifiers = + Development Status :: 4 - Beta + Intended Audience :: Developers + License :: OSI Approved :: Apache Software License + Programming Language :: Python + Programming Language :: Python :: 3 + Programming Language :: Python :: 3.5 + Programming Language :: Python :: 3.6 + Programming Language :: Python :: 3.7 + Programming Language :: Python :: 3.8 + +[options] +python_requires = >=3.5 +package_dir= + =src +packages=find_namespace: +install_requires = + django >= 1.10 + opentelemetry-instrumentation-wsgi == 0.15.dev0 + opentelemetry-instrumentation == 0.15.dev0 + opentelemetry-api == 0.15.dev0 + +[options.extras_require] +test = + opentelemetry-test == 0.15.dev0 + +[options.packages.find] +where = src + +[options.entry_points] +opentelemetry_instrumentor = + django = opentelemetry.instrumentation.django:DjangoInstrumentor diff --git a/instrumentation/opentelemetry-instrumentation-django/setup.py b/instrumentation/opentelemetry-instrumentation-django/setup.py new file mode 100644 index 000000000..fb9d615ce --- /dev/null +++ b/instrumentation/opentelemetry-instrumentation-django/setup.py @@ -0,0 +1,32 @@ +# Copyright The OpenTelemetry Authors +# +# 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. + +from os.path import dirname, join + +from setuptools import setup + +PACKAGE_INFO = {} +with open( + join( + dirname(__file__), + "src", + "opentelemetry", + "instrumentation", + "django", + "version.py", + ) +) as f: + exec(f.read(), PACKAGE_INFO) + +setup(version=PACKAGE_INFO["__version__"]) diff --git a/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/__init__.py b/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/__init__.py new file mode 100644 index 000000000..26e21a1f7 --- /dev/null +++ b/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/__init__.py @@ -0,0 +1,87 @@ +# Copyright The OpenTelemetry Authors +# +# 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. + +from logging import getLogger + +from django.conf import settings + +from opentelemetry.configuration import Configuration +from opentelemetry.instrumentation.django.middleware import _DjangoMiddleware +from opentelemetry.instrumentation.django.version import __version__ +from opentelemetry.instrumentation.instrumentor import BaseInstrumentor +from opentelemetry.instrumentation.metric import ( + HTTPMetricRecorder, + HTTPMetricType, + MetricMixin, +) + +_logger = getLogger(__name__) + + +class DjangoInstrumentor(BaseInstrumentor, MetricMixin): + """An instrumentor for Django + + See `BaseInstrumentor` + """ + + _opentelemetry_middleware = ".".join( + [_DjangoMiddleware.__module__, _DjangoMiddleware.__qualname__] + ) + + def _instrument(self, **kwargs): + + # FIXME this is probably a pattern that will show up in the rest of the + # ext. Find a better way of implementing this. + # FIXME Probably the evaluation of strings into boolean values can be + # built inside the Configuration class itself with the magic method + # __bool__ + + if Configuration().DJANGO_INSTRUMENT is False: + return + + # This can not be solved, but is an inherent problem of this approach: + # the order of middleware entries matters, and here you have no control + # on that: + # https://docs.djangoproject.com/en/3.0/topics/http/middleware/#activating-middleware + # https://docs.djangoproject.com/en/3.0/ref/middleware/#middleware-ordering + + settings_middleware = getattr(settings, "MIDDLEWARE", []) + # Django allows to specify middlewares as a tuple, so we convert this tuple to a + # list, otherwise we wouldn't be able to call append/remove + if isinstance(settings_middleware, tuple): + settings_middleware = list(settings_middleware) + + settings_middleware.insert(0, self._opentelemetry_middleware) + self.init_metrics( + __name__, __version__, + ) + metric_recorder = HTTPMetricRecorder(self.meter, HTTPMetricType.SERVER) + setattr(settings, "OTEL_METRIC_RECORDER", metric_recorder) + setattr(settings, "MIDDLEWARE", settings_middleware) + + def _uninstrument(self, **kwargs): + settings_middleware = getattr(settings, "MIDDLEWARE", None) + + # FIXME This is starting to smell like trouble. We have 2 mechanisms + # that may make this condition be True, one implemented in + # BaseInstrumentor and another one implemented in _instrument. Both + # stop _instrument from running and thus, settings_middleware not being + # set. + if settings_middleware is None or ( + self._opentelemetry_middleware not in settings_middleware + ): + return + + settings_middleware.remove(self._opentelemetry_middleware) + setattr(settings, "MIDDLEWARE", settings_middleware) diff --git a/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/middleware.py b/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/middleware.py new file mode 100644 index 000000000..41343873d --- /dev/null +++ b/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/middleware.py @@ -0,0 +1,232 @@ +# Copyright The OpenTelemetry Authors +# +# 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 time +from logging import getLogger + +from django.conf import settings + +from opentelemetry.configuration import Configuration +from opentelemetry.context import attach, detach +from opentelemetry.instrumentation.django.version import __version__ +from opentelemetry.instrumentation.utils import extract_attributes_from_object +from opentelemetry.instrumentation.wsgi import ( + add_response_attributes, + collect_request_attributes, + get_header_from_environ, +) +from opentelemetry.propagators import extract +from opentelemetry.trace import SpanKind, get_tracer +from opentelemetry.util import ExcludeList + +try: + from django.core.urlresolvers import ( # pylint: disable=no-name-in-module + resolve, + Resolver404, + ) +except ImportError: + from django.urls import resolve, Resolver404 + +try: + from django.utils.deprecation import MiddlewareMixin +except ImportError: + MiddlewareMixin = object + +_logger = getLogger(__name__) +_attributes_by_preference = [ + ["http.scheme", "http.host", "http.target"], + ["http.scheme", "http.server_name", "net.host.port", "http.target"], + ["http.scheme", "net.host.name", "net.host.port", "http.target"], + ["http.url"], +] + + +class _DjangoMiddleware(MiddlewareMixin): + """Django Middleware for OpenTelemetry""" + + _environ_activation_key = ( + "opentelemetry-instrumentor-django.activation_key" + ) + _environ_token = "opentelemetry-instrumentor-django.token" + _environ_span_key = "opentelemetry-instrumentor-django.span_key" + _environ_exception_key = "opentelemetry-instrumentor-django.exception_key" + + _excluded_urls = Configuration().DJANGO_EXCLUDED_URLS or [] + if _excluded_urls: + _excluded_urls = ExcludeList(str.split(_excluded_urls, ",")) + else: + _excluded_urls = ExcludeList(_excluded_urls) + + _traced_request_attrs = [ + attr.strip() + for attr in (Configuration().DJANGO_TRACED_REQUEST_ATTRS or "").split( + "," + ) + ] + + @staticmethod + def _get_span_name(request): + try: + if getattr(request, "resolver_match"): + match = request.resolver_match + else: + match = resolve(request.get_full_path()) + + if hasattr(match, "route"): + return match.route + + # Instead of using `view_name`, better to use `_func_name` as some applications can use similar + # view names in different modules + if hasattr(match, "_func_name"): + return match._func_name # pylint: disable=protected-access + + # Fallback for safety as `_func_name` private field + return match.view_name + + except Resolver404: + return "HTTP {}".format(request.method) + + @staticmethod + def _get_metric_labels_from_attributes(attributes): + labels = {} + labels["http.method"] = attributes.get("http.method", "") + for attrs in _attributes_by_preference: + labels_from_attributes = { + attr: attributes.get(attr, None) for attr in attrs + } + if set(attrs).issubset(attributes.keys()): + labels.update(labels_from_attributes) + break + if attributes.get("http.flavor"): + labels["http.flavor"] = attributes.get("http.flavor") + return labels + + def process_request(self, request): + # request.META is a dictionary containing all available HTTP headers + # Read more about request.META here: + # https://docs.djangoproject.com/en/3.0/ref/request-response/#django.http.HttpRequest.META + + if self._excluded_urls.url_disabled(request.build_absolute_uri("?")): + return + + # pylint:disable=W0212 + request._otel_start_time = time.time() + + environ = request.META + + token = attach(extract(get_header_from_environ, environ)) + + tracer = get_tracer(__name__, __version__) + + span = tracer.start_span( + self._get_span_name(request), + kind=SpanKind.SERVER, + start_time=environ.get( + "opentelemetry-instrumentor-django.starttime_key" + ), + ) + + attributes = collect_request_attributes(environ) + # pylint:disable=W0212 + request._otel_labels = self._get_metric_labels_from_attributes( + attributes + ) + + if span.is_recording(): + attributes = extract_attributes_from_object( + request, self._traced_request_attrs, attributes + ) + for key, value in attributes.items(): + span.set_attribute(key, value) + + activation = tracer.use_span(span, end_on_exit=True) + activation.__enter__() + + request.META[self._environ_activation_key] = activation + request.META[self._environ_span_key] = span + request.META[self._environ_token] = token + + # pylint: disable=unused-argument + def process_view(self, request, view_func, *args, **kwargs): + # Process view is executed before the view function, here we get the + # route template from request.resolver_match. It is not set yet in process_request + if self._excluded_urls.url_disabled(request.build_absolute_uri("?")): + return + + if ( + self._environ_activation_key in request.META.keys() + and self._environ_span_key in request.META.keys() + ): + span = request.META[self._environ_span_key] + + if span.is_recording(): + match = getattr(request, "resolver_match") + if match: + route = getattr(match, "route") + if route: + span.set_attribute("http.route", route) + + def process_exception(self, request, exception): + if self._excluded_urls.url_disabled(request.build_absolute_uri("?")): + return + + if self._environ_activation_key in request.META.keys(): + request.META[self._environ_exception_key] = exception + + def process_response(self, request, response): + if self._excluded_urls.url_disabled(request.build_absolute_uri("?")): + return response + + if ( + self._environ_activation_key in request.META.keys() + and self._environ_span_key in request.META.keys() + ): + add_response_attributes( + request.META[self._environ_span_key], + "{} {}".format(response.status_code, response.reason_phrase), + response, + ) + # pylint:disable=W0212 + request._otel_labels["http.status_code"] = str( + response.status_code + ) + request.META.pop(self._environ_span_key) + + exception = request.META.pop(self._environ_exception_key, None) + if exception: + request.META[self._environ_activation_key].__exit__( + type(exception), + exception, + getattr(exception, "__traceback__", None), + ) + else: + request.META[self._environ_activation_key].__exit__( + None, None, None + ) + request.META.pop(self._environ_activation_key) + + if self._environ_token in request.META.keys(): + detach(request.environ.get(self._environ_token)) + request.META.pop(self._environ_token) + + try: + metric_recorder = getattr(settings, "OTEL_METRIC_RECORDER", None) + if metric_recorder is not None: + # pylint:disable=W0212 + metric_recorder.record_server_duration_range( + request._otel_start_time, time.time(), request._otel_labels + ) + except Exception as ex: # pylint: disable=W0703 + _logger.warning("Error recording duration metrics: %s", ex) + return response diff --git a/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/version.py b/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/version.py new file mode 100644 index 000000000..e7b342d64 --- /dev/null +++ b/instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/version.py @@ -0,0 +1,15 @@ +# Copyright The OpenTelemetry Authors +# +# 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. + +__version__ = "0.15.dev0" diff --git a/instrumentation/opentelemetry-instrumentation-django/tests/__init__.py b/instrumentation/opentelemetry-instrumentation-django/tests/__init__.py new file mode 100644 index 000000000..e69de29bb diff --git a/instrumentation/opentelemetry-instrumentation-django/tests/test_middleware.py b/instrumentation/opentelemetry-instrumentation-django/tests/test_middleware.py new file mode 100644 index 000000000..4aa794f0d --- /dev/null +++ b/instrumentation/opentelemetry-instrumentation-django/tests/test_middleware.py @@ -0,0 +1,300 @@ +# Copyright The OpenTelemetry Authors +# +# 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. + +from sys import modules +from unittest.mock import Mock, patch + +from django import VERSION +from django.conf import settings +from django.conf.urls import url +from django.test import Client +from django.test.utils import setup_test_environment, teardown_test_environment + +from opentelemetry.configuration import Configuration +from opentelemetry.instrumentation.django import DjangoInstrumentor +from opentelemetry.sdk.util import get_dict_as_key +from opentelemetry.test.test_base import TestBase +from opentelemetry.test.wsgitestutil import WsgiTestBase +from opentelemetry.trace import SpanKind +from opentelemetry.trace.status import StatusCanonicalCode +from opentelemetry.util import ExcludeList + +# pylint: disable=import-error +from .views import ( + error, + excluded, + excluded_noarg, + excluded_noarg2, + route_span_name, + traced, + traced_template, +) + +DJANGO_2_2 = VERSION >= (2, 2) + +urlpatterns = [ + url(r"^traced/", traced), + url(r"^route/(?P[0-9]{4})/template/$", traced_template), + url(r"^error/", error), + url(r"^excluded_arg/", excluded), + url(r"^excluded_noarg/", excluded_noarg), + url(r"^excluded_noarg2/", excluded_noarg2), + url(r"^span_name/([0-9]{4})/$", route_span_name), +] +_django_instrumentor = DjangoInstrumentor() + + +class TestMiddleware(TestBase, WsgiTestBase): + @classmethod + def setUpClass(cls): + super().setUpClass() + settings.configure(ROOT_URLCONF=modules[__name__]) + + def setUp(self): + super().setUp() + setup_test_environment() + _django_instrumentor.instrument() + Configuration._reset() # pylint: disable=protected-access + + def tearDown(self): + super().tearDown() + teardown_test_environment() + _django_instrumentor.uninstrument() + + def test_templated_route_get(self): + Client().get("/route/2020/template/") + + spans = self.memory_exporter.get_finished_spans() + self.assertEqual(len(spans), 1) + + span = spans[0] + + self.assertEqual( + span.name, + "^route/(?P[0-9]{4})/template/$" + if DJANGO_2_2 + else "tests.views.traced", + ) + self.assertEqual(span.kind, SpanKind.SERVER) + self.assertEqual(span.status.canonical_code, StatusCanonicalCode.OK) + self.assertEqual(span.attributes["http.method"], "GET") + self.assertEqual( + span.attributes["http.url"], + "http://testserver/route/2020/template/", + ) + self.assertEqual( + span.attributes["http.route"], + "^route/(?P[0-9]{4})/template/$", + ) + self.assertEqual(span.attributes["http.scheme"], "http") + self.assertEqual(span.attributes["http.status_code"], 200) + self.assertEqual(span.attributes["http.status_text"], "OK") + + def test_traced_get(self): + Client().get("/traced/") + + spans = self.memory_exporter.get_finished_spans() + self.assertEqual(len(spans), 1) + + span = spans[0] + + self.assertEqual( + span.name, "^traced/" if DJANGO_2_2 else "tests.views.traced" + ) + self.assertEqual(span.kind, SpanKind.SERVER) + self.assertEqual(span.status.canonical_code, StatusCanonicalCode.OK) + self.assertEqual(span.attributes["http.method"], "GET") + self.assertEqual( + span.attributes["http.url"], "http://testserver/traced/" + ) + self.assertEqual(span.attributes["http.route"], "^traced/") + self.assertEqual(span.attributes["http.scheme"], "http") + self.assertEqual(span.attributes["http.status_code"], 200) + self.assertEqual(span.attributes["http.status_text"], "OK") + + self.assertIsNotNone(_django_instrumentor.meter) + self.assertEqual(len(_django_instrumentor.meter.metrics), 1) + recorder = _django_instrumentor.meter.metrics.pop() + match_key = get_dict_as_key( + { + "http.flavor": "1.1", + "http.method": "GET", + "http.status_code": "200", + "http.url": "http://testserver/traced/", + } + ) + for key in recorder.bound_instruments.keys(): + self.assertEqual(key, match_key) + # pylint: disable=protected-access + bound = recorder.bound_instruments.get(key) + for view_data in bound.view_datas: + self.assertEqual(view_data.labels, key) + self.assertEqual(view_data.aggregator.current.count, 1) + self.assertGreaterEqual(view_data.aggregator.current.sum, 0) + + def test_not_recording(self): + mock_tracer = Mock() + mock_span = Mock() + mock_span.is_recording.return_value = False + mock_tracer.start_span.return_value = mock_span + mock_tracer.use_span.return_value.__enter__ = mock_span + mock_tracer.use_span.return_value.__exit__ = True + with patch("opentelemetry.trace.get_tracer") as tracer: + tracer.return_value = mock_tracer + Client().get("/traced/") + self.assertFalse(mock_span.is_recording()) + self.assertTrue(mock_span.is_recording.called) + self.assertFalse(mock_span.set_attribute.called) + self.assertFalse(mock_span.set_status.called) + + def test_traced_post(self): + Client().post("/traced/") + + spans = self.memory_exporter.get_finished_spans() + self.assertEqual(len(spans), 1) + + span = spans[0] + + self.assertEqual( + span.name, "^traced/" if DJANGO_2_2 else "tests.views.traced" + ) + self.assertEqual(span.kind, SpanKind.SERVER) + self.assertEqual(span.status.canonical_code, StatusCanonicalCode.OK) + self.assertEqual(span.attributes["http.method"], "POST") + self.assertEqual( + span.attributes["http.url"], "http://testserver/traced/" + ) + self.assertEqual(span.attributes["http.route"], "^traced/") + self.assertEqual(span.attributes["http.scheme"], "http") + self.assertEqual(span.attributes["http.status_code"], 200) + self.assertEqual(span.attributes["http.status_text"], "OK") + + def test_error(self): + with self.assertRaises(ValueError): + Client().get("/error/") + + spans = self.memory_exporter.get_finished_spans() + self.assertEqual(len(spans), 1) + + span = spans[0] + + self.assertEqual( + span.name, "^error/" if DJANGO_2_2 else "tests.views.error" + ) + self.assertEqual(span.kind, SpanKind.SERVER) + self.assertEqual( + span.status.canonical_code, StatusCanonicalCode.INTERNAL + ) + self.assertEqual(span.attributes["http.method"], "GET") + self.assertEqual( + span.attributes["http.url"], "http://testserver/error/" + ) + self.assertEqual(span.attributes["http.route"], "^error/") + self.assertEqual(span.attributes["http.scheme"], "http") + self.assertEqual(span.attributes["http.status_code"], 500) + self.assertIsNotNone(_django_instrumentor.meter) + self.assertEqual(len(_django_instrumentor.meter.metrics), 1) + + self.assertEqual(len(span.events), 1) + event = span.events[0] + self.assertEqual(event.name, "exception") + self.assertEqual(event.attributes["exception.type"], "ValueError") + self.assertEqual(event.attributes["exception.message"], "error") + + recorder = _django_instrumentor.meter.metrics.pop() + match_key = get_dict_as_key( + { + "http.flavor": "1.1", + "http.method": "GET", + "http.status_code": "500", + "http.url": "http://testserver/error/", + } + ) + for key in recorder.bound_instruments.keys(): + self.assertEqual(key, match_key) + # pylint: disable=protected-access + bound = recorder.bound_instruments.get(key) + for view_data in bound.view_datas: + self.assertEqual(view_data.labels, key) + self.assertEqual(view_data.aggregator.current.count, 1) + + @patch( + "opentelemetry.instrumentation.django.middleware._DjangoMiddleware._excluded_urls", + ExcludeList(["http://testserver/excluded_arg/123", "excluded_noarg"]), + ) + def test_exclude_lists(self): + client = Client() + client.get("/excluded_arg/123") + span_list = self.memory_exporter.get_finished_spans() + self.assertEqual(len(span_list), 0) + + client.get("/excluded_arg/125") + span_list = self.memory_exporter.get_finished_spans() + self.assertEqual(len(span_list), 1) + + client.get("/excluded_noarg/") + span_list = self.memory_exporter.get_finished_spans() + self.assertEqual(len(span_list), 1) + + client.get("/excluded_noarg2/") + span_list = self.memory_exporter.get_finished_spans() + self.assertEqual(len(span_list), 1) + + def test_span_name(self): + Client().get("/span_name/1234/") + span_list = self.memory_exporter.get_finished_spans() + self.assertEqual(len(span_list), 1) + + span = span_list[0] + self.assertEqual( + span.name, + "^span_name/([0-9]{4})/$" + if DJANGO_2_2 + else "tests.views.route_span_name", + ) + + def test_span_name_404(self): + Client().get("/span_name/1234567890/") + span_list = self.memory_exporter.get_finished_spans() + self.assertEqual(len(span_list), 1) + + span = span_list[0] + self.assertEqual(span.name, "HTTP GET") + + def test_traced_request_attrs(self): + with patch( + "opentelemetry.instrumentation.django.middleware._DjangoMiddleware._traced_request_attrs", + [], + ): + Client().get("/span_name/1234/", CONTENT_TYPE="test/ct") + span_list = self.memory_exporter.get_finished_spans() + self.assertEqual(len(span_list), 1) + + span = span_list[0] + self.assertNotIn("path_info", span.attributes) + self.assertNotIn("content_type", span.attributes) + self.memory_exporter.clear() + + with patch( + "opentelemetry.instrumentation.django.middleware._DjangoMiddleware._traced_request_attrs", + ["path_info", "content_type", "non_existing_variable"], + ): + Client().get("/span_name/1234/", CONTENT_TYPE="test/ct") + span_list = self.memory_exporter.get_finished_spans() + self.assertEqual(len(span_list), 1) + + span = span_list[0] + self.assertEqual(span.attributes["path_info"], "/span_name/1234/") + self.assertEqual(span.attributes["content_type"], "test/ct") + self.assertNotIn("non_existing_variable", span.attributes) diff --git a/instrumentation/opentelemetry-instrumentation-django/tests/views.py b/instrumentation/opentelemetry-instrumentation-django/tests/views.py new file mode 100644 index 000000000..872222a84 --- /dev/null +++ b/instrumentation/opentelemetry-instrumentation-django/tests/views.py @@ -0,0 +1,31 @@ +from django.http import HttpResponse + + +def traced(request): # pylint: disable=unused-argument + return HttpResponse() + + +def traced_template(request, year): # pylint: disable=unused-argument + return HttpResponse() + + +def error(request): # pylint: disable=unused-argument + raise ValueError("error") + + +def excluded(request): # pylint: disable=unused-argument + return HttpResponse() + + +def excluded_noarg(request): # pylint: disable=unused-argument + return HttpResponse() + + +def excluded_noarg2(request): # pylint: disable=unused-argument + return HttpResponse() + + +def route_span_name( + request, *args, **kwargs +): # pylint: disable=unused-argument + return HttpResponse()