[1.26] Strip leading zeros from ports

sethmlarson · venthur · hramezani · web-flow · commit 955da4d03eaa · 2022-11-22T11:59:57.000-06:00
Co-authored-by: Bastian Venthur &lt;bastian.venthur@flixbus.com&gt;
Co-authored-by: Hasan Ramezani &lt;hasan.r67@gmail.com&gt;
diff --git a/src/urllib3/util/url.py b/src/urllib3/util/url.py
@@ -63,7 +63,7 @@
 BRACELESS_IPV6_ADDRZ_RE = re.compile("^" + IPV6_ADDRZ_PAT[2:-2] + "$")
 ZONE_ID_RE = re.compile("(" + ZONE_ID_PAT + r")\]$")
 
-_HOST_PORT_PAT = ("^(%s|%s|%s)(?::([0-9]{0,5}))?$") % (
+_HOST_PORT_PAT = ("^(%s|%s|%s)(?::0*([0-9]{0,5}))?$") % (
     REG_NAME_PAT,
     IPV4_PAT,
     IPV6_ADDRZ_PAT,
diff --git a/test/test_util.py b/test/test_util.py
@@ -347,6 +347,10 @@ def test_parse_url_negative_port(self):
         with pytest.raises(LocationParseError):
             parse_url("https://www.google.com:-80/")
 
+    def test_parse_url_remove_leading_zeros(self):
+        url = parse_url("https://example.com:0000000000080")
+        assert url.port == 80
+
     def test_Url_str(self):
         U = Url("http", host="google.com")
         assert str(U) == U.url
