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Check disabled tracing URLs based on regex #1106

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Check disabled tracing URLs based on regex #1106

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eef5dce
check excluded tracing paths based on regex
jonasmiederer Mar 2, 2022
8988703
Updated method doc
jonasmiederer Mar 2, 2022
c80fb62
added wildcard test
jonasmiederer Mar 2, 2022
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6 changes: 3 additions & 3 deletions opencensus/trace/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -44,9 +44,9 @@ def get_func_name(func):

def disable_tracing_url(url, excludelist_paths=None):
"""Disable tracing on the provided excludelist paths, by default not tracing
the health check request.
the health check request. Paths can be provided as regex patterns.

If the url path starts with the excludelisted path, return True.
If the url path matches the excludelisted path, return True.

:type excludelist_paths: list
:param excludelist_paths: Paths that not tracing.
Expand All @@ -64,7 +64,7 @@ def disable_tracing_url(url, excludelist_paths=None):
url_path = url.split('/', 1)[1]

for path in excludelist_paths:
if url_path.startswith(path):
if re.match(path, url_path):
return True

return False
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53 changes: 53 additions & 0 deletions tests/unit/trace/test_ext_utils.py
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Expand Up @@ -58,6 +58,59 @@ def test_disable_tracing_url_explicit(self):
disable_tracing = utils.disable_tracing_url(url, excludelist_paths)
self.assertTrue(disable_tracing)

def test_disable_tracing_url_partial(self):
url = 'http://127.0.0.1:8080/test_no_tracing'
excludelist_paths = ['test']

disable_tracing = utils.disable_tracing_url(url, excludelist_paths)
self.assertTrue(disable_tracing)

def test_disable_tracing_url_partial_regex_match(self):
url = 'http://127.0.0.1:8080/test_no_tracing'
excludelist_paths = ['^test']

disable_tracing = utils.disable_tracing_url(url, excludelist_paths)
self.assertTrue(disable_tracing)

def test_disable_tracing_url_partial_regex_nomatch(self):
url = 'http://127.0.0.1:8080/test_no_tracing'
excludelist_paths = ['test$']

disable_tracing = utils.disable_tracing_url(url, excludelist_paths)
self.assertFalse(disable_tracing)

def test_disable_tracing_url_root(self):
url = 'http://127.0.0.1:8080/'
excludelist_paths = ['']

disable_tracing = utils.disable_tracing_url(url, excludelist_paths)
self.assertTrue(disable_tracing)

def test_disable_tracing_url_root_regex(self):
url = 'http://127.0.0.1:8080/'
excludelist_paths = ['^$']

disable_tracing = utils.disable_tracing_url(url, excludelist_paths)
self.assertTrue(disable_tracing)

def test_disable_tracing_url_root_empty_exclude(self):
url = 'http://127.0.0.1:8080/test_no_tracing'
excludelist_paths = ['']

disable_tracing = utils.disable_tracing_url(url, excludelist_paths)
self.assertTrue(disable_tracing)

def test_disable_tracing_url_wildcard(self):
excludelist_paths = [r'test/(\w+/)*tracing']

url = 'http://127.0.0.1:8080/test/no/tracing'
disable_tracing = utils.disable_tracing_url(url, excludelist_paths)
self.assertTrue(disable_tracing)

url = 'http://127.0.0.1:8080/test/tracing'
disable_tracing = utils.disable_tracing_url(url, excludelist_paths)
self.assertTrue(disable_tracing)

def test_disable_tracing_hostname_default(self):
url = '127.0.0.1:8080'

Expand Down