Preserve brackets around literal IPv6 hosts (#2552)

Author: tim-hutchinson

Diff for: CHANGELOG.md

@@ -56,6 +56,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#2420](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2420))
 - `opentelemetry-instrumentation-asyncio` Check for __name__ attribute in the coroutine
   ([#2521](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2521))
+- `opentelemetry-util-http` Preserve brackets around literal IPv6 hosts ([#2552](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2552))
 
 ## Version 1.24.0/0.45b0 (2024-03-28)
 

Diff for: util/opentelemetry-util-http/src/opentelemetry/util/http/__init__.py

@@ -166,11 +166,7 @@ def remove_url_credentials(url: str) -> str:
         parsed = urlparse(url)
         if all([parsed.scheme, parsed.netloc]):  # checks for valid url
             parsed_url = urlparse(url)
-            netloc = (
-                (":".join(((parsed_url.hostname or ""), str(parsed_url.port))))
-                if parsed_url.port
-                else (parsed_url.hostname or "")
-            )
+            _, _, netloc = parsed.netloc.rpartition("@")
             return urlunparse(
                 (
                     parsed_url.scheme,

Diff for: util/opentelemetry-util-http/tests/test_remove_credentials.py

@@ -0,0 +1,27 @@
+import unittest
+
+from opentelemetry.util.http import remove_url_credentials
+
+
+class TestRemoveUrlCredentials(unittest.TestCase):
+    def test_remove_no_credentials(self):
+        url = "http://opentelemetry.io:8080/test/path?query=value"
+        cleaned_url = remove_url_credentials(url)
+        self.assertEqual(cleaned_url, url)
+
+    def test_remove_credentials(self):
+        url = "http://someuser:[email protected]:8080/test/path?query=value"
+        cleaned_url = remove_url_credentials(url)
+        self.assertEqual(
+            cleaned_url, "http://opentelemetry.io:8080/test/path?query=value"
+        )
+
+    def test_remove_credentials_ipv4_literal(self):
+        url = "http://someuser:[email protected]:8080/test/path?query=value"
+        cleaned_url = remove_url_credentials(url)
+        self.assertEqual(cleaned_url, "http://127.0.0.1:8080/test/path?query=value")
+
+    def test_remove_credentials_ipv6_literal(self):
+        url = "http://someuser:somepass@[::1]:8080/test/path?query=value"
+        cleaned_url = remove_url_credentials(url)
+        self.assertEqual(cleaned_url, "http://[::1]:8080/test/path?query=value")