fix: remove url parts from http.url tag [backport #4904 to 1.7] (#4905)

This fix removes unintended url parts in the `http.url` tag.

Co-authored-by: Brett Langdon <[email protected]>

## Description
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changes must append `!` after the type/scope. See
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## Checklist
- [x] Followed the [library release note
guidelines](https://ddtrace.readthedocs.io/en/stable/contributing.html#Release-Note-Guidelines)
when writing a release note.
- [x] Add additional sections for `feat` and `fix` pull requests.
- [x] [Library
documentation](https://github.com/DataDog/dd-trace-py/tree/1.x/docs)
and/or [Datadog's documentation
site](https://github.com/DataDog/documentation/) is updated. Link to doc
PR in description.

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## Motivation
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## Design 
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## Testing strategy
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## Relevant issue(s)
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## Reviewer Checklist
- [ ] Title is accurate.
- [ ] Description motivates each change.
- [ ] No unnecessary changes were introduced in this PR.
- [ ] Avoid breaking
[API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces)
changes unless absolutely necessary.
- [ ] Tests provided or description of manual testing performed is
included in the code or PR.
- [ ] Release note has been added and follows the [library release note
guidelines](https://ddtrace.readthedocs.io/en/stable/contributing.html#Release-Note-Guidelines),
or else `changelog/no-changelog` label added.
- [ ] All relevant GitHub issues are correctly linked.
- [ ] Backports are identified and tagged with Mergifyio.

Co-authored-by: Tahir H. Butt <[email protected]>
Co-authored-by: Brett Langdon <[email protected]>

Author: 3 people

ddtrace/contrib/trace_utils.py

@@ -23,6 +23,7 @@
 from ddtrace.ext import http
 from ddtrace.ext import user
 from ddtrace.internal import _context
+from ddtrace.internal.compat import parse
 from ddtrace.internal.compat import six
 from ddtrace.internal.logger import get_logger
 from ddtrace.internal.utils.cache import cached
@@ -280,6 +281,29 @@ def _store_response_headers(headers, span, integration_config):
     _store_headers(headers, span, integration_config, RESPONSE)
 
 
+def _sanitized_url(url):
+    # type: (str) -> str
+    """
+    Sanitize url by removing parts with potential auth info
+    """
+    if "@" in url:
+        parsed = parse.urlparse(url)
+        netloc = parsed.netloc
+        netloc = netloc[netloc.index("@") + 1 :]
+        return parse.urlunparse(
+            (
+                parsed.scheme,
+                netloc,
+                parsed.path,
+                "",
+                parsed.query,
+                "",
+            )
+        )
+
+    return url
+
+
 def with_traced_module(func):
     """Helper for providing tracing essentials (module and pin) for tracing
     wrappers.
@@ -417,6 +441,8 @@ def set_http_meta(
         span.set_tag_str(http.METHOD, method)
 
     if url is not None:
+        url = _sanitized_url(url)
+
         if integration_config.http_tag_query_string:  # Tagging query string in http.url
             if config.global_query_string_obfuscation_disabled:  # No redacting of query strings
                 span.set_tag_str(http.URL, url)

releasenotes/notes/fix-http-url-200fca099f41ce49.yaml

@@ -0,0 +1,4 @@
+---
+fixes:
+  - |
+    This fix removes unintended url parts in the ``http.url`` tag.

tests/contrib/aiohttp/test_aiohttp_client.py

@@ -16,7 +16,9 @@
 PORT = HTTPBIN_CONFIG["port"]
 SOCKET = "{}:{}".format(HOST, PORT)
 URL = "http://{}".format(SOCKET)
+URL_AUTH = "http://user:pass@{}".format(SOCKET)
 URL_200 = "{}/status/200".format(URL)
+URL_AUTH_200 = "{}/status/200".format(URL_AUTH)
 URL_500 = "{}/status/500".format(URL)
 
 
@@ -35,6 +37,14 @@ async def test_200_request(snapshot_context):
                 assert resp.status == 200
 
 
+@pytest.mark.asyncio
+async def test_auth_200_request(snapshot_context):
+    with snapshot_context():
+        async with aiohttp.ClientSession() as session:
+            async with session.get(URL_AUTH_200) as resp:
+                assert resp.status == 200
+
+
 @pytest.mark.asyncio
 async def test_200_request_post(snapshot_context):
     with snapshot_context():

tests/contrib/requests/test_requests.py

@@ -30,6 +30,7 @@
 SOCKET = "httpbin.org"
 URL_200 = "http://{}/status/200".format(SOCKET)
 URL_500 = "http://{}/status/500".format(SOCKET)
+URL_AUTH_200 = "http://user:pass@{}/status/200".format(SOCKET)
 
 
 class BaseRequestTestCase(object):
@@ -125,6 +126,13 @@ def test_200(self):
         assert s.span_type == "http"
         assert http.QUERY_STRING not in s.get_tags()
 
+    def test_auth_200(self):
+        self.session.get(URL_AUTH_200)
+        spans = self.pop_spans()
+        assert len(spans) == 1
+        s = spans[0]
+        assert s.get_tag(http.URL) == URL_200
+
     def test_200_send(self):
         # when calling send directly
         req = requests.Request(url=URL_200, method="GET")

tests/snapshots/tests.contrib.aiohttp.test_aiohttp_client.test_auth_200_request.json

@@ -0,0 +1,40 @@
+[[
+  {
+    "name": "aiohttp.request",
+    "service": "",
+    "resource": "aiohttp.request",
+    "trace_id": 0,
+    "span_id": 1,
+    "parent_id": 0,
+    "type": "http",
+    "error": 0,
+    "meta": {
+      "_dd.p.dm": "-0",
+      "http.method": "GET",
+      "http.status_code": "200",
+      "http.status_msg": "OK",
+      "http.url": "http://localhost:8001/status/200",
+      "runtime-id": "7a569f0d94574038b2b11ee3579d0936"
+    },
+    "metrics": {
+      "_dd.agent_psr": 1.0,
+      "_dd.top_level": 1,
+      "_dd.tracer_kr": 1.0,
+      "_sampling_priority_v1": 1,
+      "system.pid": 57194
+    },
+    "duration": 8933000,
+    "start": 1673646330398679000
+  },
+     {
+       "name": "TCPConnector.connect",
+       "service": "",
+       "resource": "TCPConnector.connect",
+       "trace_id": 0,
+       "span_id": 2,
+       "parent_id": 1,
+       "type": "",
+       "error": 0,
+       "duration": 1426000,
+       "start": 1673646330399204000
+     }]]

tests/tracer/test_trace_utils.py

@@ -336,6 +336,9 @@ def test_ext_service(int_config, pin, config_val, default, expected):
             {"id": "val", "name": "vlad"},
             None,
         ),
+        ("GET", "http://user:pass@localhost/", 0, None, None, None, None, None, None, None),
+        ("GET", "http://user@localhost/", 0, None, None, None, None, None, None, None),
+        ("GET", "http://user:pass@localhost/api?q=test", 0, None, None, None, None, None, None, None),
     ],
 )
 def test_set_http_meta(
@@ -376,10 +379,16 @@ def test_set_http_meta(
         assert http.METHOD not in span.get_tags()
 
     if url is not None:
+        if url.startswith("http://user"):
+            # Remove any userinfo that may be in the original url
+            expected_url = url[: url.index(":")] + "://" + url[url.index("@") + 1 :]
+        else:
+            expected_url = url
+
         if query and int_config.trace_query_string:
-            assert span.get_tag(http.URL) == stringify(url + "?" + query)
+            assert span.get_tag(http.URL) == stringify(expected_url + "?" + query)
         else:
-            assert span.get_tag(http.URL) == stringify(url)
+            assert span.get_tag(http.URL) == stringify(expected_url)
     else:
         assert http.URL not in span.get_tags()