def test_no_whitelist(self, span, integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
store_response_headers({"Content-Type": "some;value",}, span, integration_config)
assert span.get_tag("http.response.headers.content-type") is None
def test_whitelist_case_insensitive(self, span, integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
integration_config.http.trace_headers("CoNtEnT-tYpE")
store_response_headers({"cOnTeNt-TyPe": "some;value",}, span, integration_config)
assert span.get_tag("http.response.headers.content-type") == "some;value"
def test_numbers_in_headers_names_are_allowed(self, span, integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
integration_config.http.trace_headers("Content-Type123")
store_response_headers({"Content-Type123": "some;value",}, span, integration_config)
assert span.get_tag("http.response.headers.content-type123") == "some;value"
def test_value_not_trim_leading_trailing_spaced(self, span, integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
integration_config.http.trace_headers("Content-Type")
store_response_headers({"Content-Type": " some;value ",}, span, integration_config)
assert span.get_tag("http.response.headers.content-type") == " some;value "
def test_whitelist_exact(self, span, integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
integration_config.http.trace_headers("content-type")
store_response_headers({"Content-Type": "some;value",}, span, integration_config)
assert span.get_tag("http.response.headers.content-type") == "some;value"
def test_no_allowlist(self, span, integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
store_response_headers({
'Content-Type': 'some;value',
}, span, integration_config)
assert span.get_tag('http.response.headers.content-type') is None
def test_non_allowed_chars_replaced(self, span, integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
# See: https://docs.datadoghq.com/tagging/#defining-tags
integration_config.http.trace_headers("C!#ontent-Type")
store_response_headers({"C!#ontent-Type": "some;value",}, span, integration_config)
assert span.get_tag("http.response.headers.c__ontent-type") == "some;value"
def update_span(response):
if isinstance(response, sanic.response.BaseHTTPResponse):
status_code = response.status
store_response_headers(response.headers, span, config.sanic)
else:
# invalid response causes ServerError exception which must be handled
status_code = 500
trace_utils.set_http_meta(span, config.sanic, status_code=status_code)
span.finish()
async def wrapped_send(message):
if span and message.get("type") == "http.response.start":
if "status" in message:
status_code = message["status"]
span.set_tag(http.STATUS_CODE, status_code)
if "headers" in message:
store_response_headers(message["headers"], span,
config.asgi)
return await send(message)
def test_period_is_replaced_by_underscore(self, span, integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
# Deviation from https://docs.datadoghq.com/tagging/#defining-tags in order to allow
# consistent representation of headers having the period in the name.
integration_config.http.trace_headers("api.token")
store_response_headers({"api.token": "some;value",}, span, integration_config)
assert span.get_tag("http.response.headers.api_token") == "some;value"
def test_whitelist_case_insensitive(self, span, integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
integration_config.http.trace_headers('CoNtEnT-tYpE')
store_response_headers({
'cOnTeNt-TyPe': 'some;value',
}, span, integration_config)
assert span.get_tag(
'http.response.headers.content-type') == 'some;value'
def test_whitelist_exact(self, span, integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
integration_config.http.trace_headers('content-type')
store_response_headers({
'Content-Type': 'some;value',
}, span, integration_config)
assert span.get_tag(
'http.response.headers.content-type') == 'some;value'
def test_key_trim_leading_trailing_spaced(self, span, integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
integration_config.http.trace_headers('Content-Type')
store_response_headers({
' Content-Type ': 'some;value',
}, span, integration_config)
assert span.get_tag(
'http.response.headers.content-type') == 'some;value'
async def send_with_tracing(message: Message) -> None:
span = self.tracer.current_span()
if span and message.get("type") == "http.response.start":
if "status" in message:
status_code: int = message["status"]
span.set_tag(http_tags.STATUS_CODE, str(status_code))
if "headers" in message:
response_headers = Headers(raw=message["headers"])
store_response_headers(response_headers, span, config.asgi)
await send(message)
async def wrapped_send(message):
if span and message.get("type") == "http.response.start":
if "status" in message:
status_code = message["status"]
span.set_tag(http.STATUS_CODE, status_code)
if 500 <= int(status_code) < 600:
span.error = 1
if "headers" in message:
store_response_headers(message["headers"], span,
self.integration_config)
return await send(message)
def test_allowed_chars_not_replaced_in_tag_name(self, span,
integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
# See: https://docs.datadoghq.com/tagging/#defining-tags
integration_config.http.trace_headers('C0n_t:e/nt-Type')
store_response_headers({
'C0n_t:e/nt-Type': 'some;value',
}, span, integration_config)
assert span.get_tag(
'http.response.headers.c0n_t:e/nt-type') == 'some;value'
def update_span(response):
error = 0
if isinstance(response, sanic.response.BaseHTTPResponse):
status_code = response.status
if 500 <= response.status < 600:
error = 1
store_response_headers(response.headers, span, config.sanic)
else:
# invalid response causes ServerError exception which must be handled
status_code = 500
error = 1
span.set_tag(http.STATUS_CODE, status_code)
span.error = error
span.finish()
def test_store_multiple_response_headers_as_dict(self, span, integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
integration_config.http.trace_headers(["Content-Type", "Max-Age"])
store_response_headers(
{"Content-Type": "some;value;content-type", "Max-Age": "some;value;max_age", "Other": "some;value;other",},
span,
integration_config,
)
assert span.get_tag("http.response.headers.content-type") == "some;value;content-type"
assert span.get_tag("http.response.headers.max-age") == "some;value;max_age"
assert None is span.get_tag("http.response.headers.other")
async def wrapped_send(message):
if span and message.get(
"type") == "http.response.start" and "status" in message:
status_code = message["status"]
else:
status_code = None
trace_utils.set_http_meta(span,
self.integration_config,
status_code=status_code)
if "headers" in message:
store_response_headers(message["headers"], span,
self.integration_config)
return await send(message)
async def send_with_tracing(message: Message) -> None:
span = self.tracer.current_span()
if not span:
# Unexpected.
await send(message)
return
if message["type"] == "http.response.start":
status_code: int = message["status"]
response_headers = Headers(raw=message["headers"])
store_response_headers(response_headers, span, config.asgi)
span.set_tag(http_tags.STATUS_CODE, str(status_code))
await send(message)
def test_store_multiple_response_headers_as_dict(self, span,
integration_config):
"""
:type span: Span
:type integration_config: IntegrationConfig
"""
integration_config.http.trace_headers(['Content-Type', 'Max-Age'])
store_response_headers(
{
'Content-Type': 'some;value;content-type',
'Max-Age': 'some;value;max_age',
'Other': 'some;value;other',
}, span, integration_config)
assert span.get_tag(
'http.response.headers.content-type') == 'some;value;content-type'
assert span.get_tag(
'http.response.headers.max-age') == 'some;value;max_age'
assert None is span.get_tag('http.response.headers.other')
def process_response(self, req, resp, resource, req_succeeded=None):
# req_succeded is not a kwarg in the API, but we need that to support
# Falcon 1.0 that doesn't provide this argument
span = self.tracer.current_span()
if not span:
return # unexpected
status = httpx.normalize_status_code(resp.status)
# Note: any response header set after this line will not be stored in the span
store_response_headers(resp._headers, span, config.falcon)
# FIXME[matt] falcon does not map errors or unmatched routes
# to proper status codes, so we we have to try to infer them
# here. See https://github.com/falconry/falcon/issues/606
if resource is None:
status = '404'
span.resource = '%s 404' % req.method
span.set_tag(httpx.STATUS_CODE, status)
span.finish()
return
err_type = sys.exc_info()[0]
if err_type is not None:
if req_succeeded is None:
# backward-compatibility with Falcon 1.0; any version
# greater than 1.0 has req_succeded in [True, False]
# TODO[manu]: drop the support at some point
status = _detect_and_set_status_error(err_type, span)
elif req_succeeded is False:
# Falcon 1.1+ provides that argument that is set to False
# if get an Exception (404 is still an exception)
status = _detect_and_set_status_error(err_type, span)
span.set_tag(httpx.STATUS_CODE, status)
if 500 <= int(status) < 600:
span.error = 1
# Emit span hook for this response
# DEV: Emit before closing so they can overwrite `span.resource` if they want
config.falcon.hooks.emit('request', span, req, resp)
# Close the span
span.finish()
def traced_get_response(django, pin, func, instance, args, kwargs):
"""Trace django.core.handlers.base.BaseHandler.get_response() (or other implementations).
This is the main entry point for requests.
Django requests are handled by a Handler.get_response method (inherited from base.BaseHandler).
This method invokes the middleware chain and returns the response generated by the chain.
"""
request = kwargs.get("request", args[0])
if request is None:
return func(*args, **kwargs)
try:
request_headers = request.META
if config.django.distributed_tracing_enabled:
context = propagator.extract(request_headers)
if context.trace_id:
pin.tracer.context_provider.activate(context)
# Determine the resolver and resource name for this request
resolver = get_resolver(getattr(request, "urlconf", None))
if django.VERSION < (1, 10, 0):
error_type_404 = django.core.urlresolvers.Resolver404
else:
error_type_404 = django.urls.exceptions.Resolver404
route = None
resolver_match = None
resource = request.method
try:
# Resolve the requested url and build resource name pieces
resolver_match = resolver.resolve(request.path_info)
handler, _, _ = resolver_match
handler = func_name(handler)
urlpattern = ""
resource_format = None
if config.django.use_handler_resource_format:
resource_format = "{method} {handler}"
else:
# In Django >= 2.2.0 we can access the original route or regex pattern
# TODO: Validate if `resolver.pattern.regex.pattern` is available on django<2.2
if django.VERSION >= (2, 2, 0):
route = utils.get_django_2_route(resolver, resolver_match)
resource_format = "{method} {urlpattern}"
else:
resource_format = "{method} {handler}"
if route is not None:
urlpattern = route
resource = resource_format.format(method=request.method, urlpattern=urlpattern, handler=handler)
except error_type_404:
# Normalize all 404 requests into a single resource name
# DEV: This is for potential cardinality issues
resource = "{0} 404".format(request.method)
except Exception:
log.debug(
"Failed to resolve request path %r with path info %r",
request,
getattr(request, "path_info", "not-set"),
exc_info=True,
)
except Exception:
log.debug("Failed to trace django request %r", args, exc_info=True)
return func(*args, **kwargs)
else:
with pin.tracer.trace(
"django.request",
resource=resource,
service=trace_utils.int_service(pin, config.django),
span_type=SpanTypes.HTTP,
) as span:
analytics_sr = config.django.get_analytics_sample_rate(use_global_config=True)
if analytics_sr is not None:
span.set_tag(ANALYTICS_SAMPLE_RATE_KEY, analytics_sr)
if config.django.http.trace_query_string:
span.set_tag(http.QUERY_STRING, request_headers["QUERY_STRING"])
# Not a 404 request
if resolver_match:
span.set_tag("django.view", resolver_match.view_name)
utils.set_tag_array(span, "django.namespace", resolver_match.namespaces)
# Django >= 2.0.0
if hasattr(resolver_match, "app_names"):
utils.set_tag_array(span, "django.app", resolver_match.app_names)
if route:
span.set_tag("http.route", route)
# Set HTTP Request tags
span.set_tag(http.URL, utils.get_request_uri(request))
response = func(*args, **kwargs)
# Note: this call must be done after the function call because
# some attributes (like `user`) are added to the request through
# the middleware chain
_set_request_tags(django, span, request)
if response:
span.set_tag(http.STATUS_CODE, response.status_code)
if 500 <= response.status_code < 600:
span.error = 1
span.set_tag("django.response.class", func_name(response))
if hasattr(response, "template_name"):
# template_name is a bit of a misnomer, as it could be any of:
# a list of strings, a tuple of strings, a single string, or an instance of Template
# for more detail, see:
# https://docs.djangoproject.com/en/3.0/ref/template-response/#django.template.response.SimpleTemplateResponse.template_name
template = response.template_name
if isinstance(template, six.string_types):
template_names = [template]
elif isinstance(
template,
(
list,
tuple,
),
):
template_names = template
elif hasattr(template, "template"):
# ^ checking by attribute here because
# django backend implementations don't have a common base
# `.template` is also the most consistent across django versions
template_names = [template.template.name]
else:
template_names = None
utils.set_tag_array(span, "django.response.template", template_names)
headers = dict(response.items())
store_response_headers(headers, span, config.django)
return response
def test_it_does_not_break_if_headers_are_not_a_dict(
self, span, integration_config):
store_request_headers(list(), span, integration_config)
store_response_headers(list(), span, integration_config)
def test_it_does_not_break_if_no_headers(self, span, integration_config):
store_request_headers(None, span, integration_config)
store_response_headers(None, span, integration_config)
def update_span(response):
span.set_tag(http.STATUS_CODE, response.status)
if 500 <= response.status < 600:
span.error = 1
store_response_headers(response.headers, span, config.sanic)
span.finish()
def _wrap_send(func, instance, args, kwargs):
"""Trace the `Session.send` instance method"""
# TODO[manu]: we already offer a way to provide the Global Tracer
# and is ddtrace.tracer; it's used only inside our tests and can
# be easily changed by providing a TracingTestCase that sets common
# tracing functionalities.
tracer = getattr(instance, 'datadog_tracer', ddtrace.tracer)
# skip if tracing is not enabled
if not tracer.enabled:
return func(*args, **kwargs)
request = kwargs.get('request') or args[0]
if not request:
return func(*args, **kwargs)
# sanitize url of query
parsed_uri = parse.urlparse(request.url)
hostname = parsed_uri.hostname
if parsed_uri.port:
hostname = '{}:{}'.format(hostname, parsed_uri.port)
sanitized_url = parse.urlunparse((
parsed_uri.scheme,
parsed_uri.netloc,
parsed_uri.path,
parsed_uri.params,
None, # drop parsed_uri.query
parsed_uri.fragment
))
with tracer.trace('requests.request', span_type=http.TYPE) as span:
# update the span service name before doing any action
span.service = _extract_service_name(instance, span, hostname=hostname)
# propagate distributed tracing headers
if config.get_from(instance).get('distributed_tracing'):
propagator = HTTPPropagator()
propagator.inject(span.context, request.headers)
# Storing request headers in the span
store_request_headers(request.headers, span, config.requests)
response = None
try:
response = func(*args, **kwargs)
# Storing response headers in the span. Note that response.headers is not a dict, but an iterable
# requests custom structure, that we convert to a dict
if hasattr(response, 'headers'):
store_response_headers(dict(response.headers), span, config.requests)
return response
finally:
try:
span.set_tag(http.METHOD, request.method.upper())
span.set_tag(http.URL, sanitized_url)
if response is not None:
span.set_tag(http.STATUS_CODE, response.status_code)
# `span.error` must be an integer
span.error = int(500 <= response.status_code)
# Storing response headers in the span.
# Note that response.headers is not a dict, but an iterable
# requests custom structure, that we convert to a dict
response_headers = dict(getattr(response, 'headers', {}))
store_response_headers(response_headers, span, config.requests)
except Exception:
log.debug("requests: error adding tags", exc_info=True)
def _wrap_send(func, instance, args, kwargs):
"""Trace the `Session.send` instance method"""
# TODO[manu]: we already offer a way to provide the Global Tracer
# and is ddtrace.tracer; it's used only inside our tests and can
# be easily changed by providing a TracingTestCase that sets common
# tracing functionalities.
tracer = getattr(instance, "datadog_tracer", ddtrace.tracer)
# skip if tracing is not enabled
if not tracer.enabled:
return func(*args, **kwargs)
request = kwargs.get("request") or args[0]
if not request:
return func(*args, **kwargs)
# sanitize url of query
parsed_uri = parse.urlparse(request.url)
hostname = parsed_uri.hostname
if parsed_uri.port:
hostname = "{}:{}".format(hostname, parsed_uri.port)
sanitized_url = parse.urlunparse((
parsed_uri.scheme,
parsed_uri.netloc,
parsed_uri.path,
parsed_uri.params,
None, # drop parsed_uri.query
parsed_uri.fragment,
))
with tracer.trace("requests.request", span_type=SpanTypes.HTTP) as span:
span.set_tag(SPAN_MEASURED_KEY)
# update the span service name before doing any action
span.service = _extract_service_name(instance, span, hostname=hostname)
# Configure trace search sample rate
# DEV: analytics enabled on per-session basis
cfg = config.get_from(instance)
analytics_enabled = cfg.get("analytics_enabled")
if analytics_enabled:
span.set_tag(ANALYTICS_SAMPLE_RATE_KEY,
cfg.get("analytics_sample_rate", True))
# propagate distributed tracing headers
if cfg.get("distributed_tracing"):
propagator = HTTPPropagator()
propagator.inject(span.context, request.headers)
# Storing request headers in the span
store_request_headers(request.headers, span, config.requests)
response = None
try:
response = func(*args, **kwargs)
# Storing response headers in the span. Note that response.headers is not a dict, but an iterable
# requests custom structure, that we convert to a dict
if hasattr(response, "headers"):
store_response_headers(dict(response.headers), span,
config.requests)
return response
finally:
try:
span.set_tag(http.METHOD, request.method.upper())
span.set_tag(http.URL, sanitized_url)
if config.requests.trace_query_string:
span.set_tag(http.QUERY_STRING, parsed_uri.query)
if response is not None:
span.set_tag(http.STATUS_CODE, response.status_code)
# `span.error` must be an integer
span.error = int(500 <= response.status_code)
# Storing response headers in the span.
# Note that response.headers is not a dict, but an iterable
# requests custom structure, that we convert to a dict
response_headers = dict(getattr(response, "headers", {}))
store_response_headers(response_headers, span,
config.requests)
except Exception:
log.debug("requests: error adding tags", exc_info=True)
