[PR #9301/c240b52 backport][3.10] Replace code that can now be handle…

…d by yarl (#9314)

CHANGES/9301.misc.rst

@@ -0,0 +1 @@
+Replaced code that can now be handled by ``yarl`` -- by :user:`bdraco`.

aiohttp/client_reqrep.py

@@ -27,7 +27,7 @@
 
 import attr
 from multidict import CIMultiDict, CIMultiDictProxy, MultiDict, MultiDictProxy
-from yarl import URL
+from yarl import URL, __version__ as yarl_version
 
 from . import hdrs, helpers, http, multipart, payload
 from .abc import AbstractStreamWriter
@@ -90,6 +90,10 @@
 
 _CONTAINS_CONTROL_CHAR_RE = re.compile(r"[^-!#$%&'*+.^_`|~0-9a-zA-Z]")
 json_re = re.compile(r"^application/(?:[\w.+-]+?\+)?json")
+_YARL_SUPPORTS_HOST_SUBCOMPONENT = tuple(map(int, yarl_version.split(".")[:2])) >= (
+    1,
+    13,
+)
 
 
 def _gen_default_accept_encoding() -> str:
@@ -429,9 +433,13 @@ def update_headers(self, headers: Optional[LooseHeaders]) -> None:
         self.headers: CIMultiDict[str] = CIMultiDict()
 
         # add host
-        netloc = cast(str, self.url.raw_host)
-        if helpers.is_ipv6_address(netloc):
-            netloc = f"[{netloc}]"
+        if _YARL_SUPPORTS_HOST_SUBCOMPONENT:
+            netloc = self.url.host_subcomponent
+            assert netloc is not None
+        else:
+            netloc = cast(str, self.url.raw_host)
+            if helpers.is_ipv6_address(netloc):
+                netloc = f"[{netloc}]"
         # See https://github.com/aio-libs/aiohttp/issues/3636.
         netloc = netloc.rstrip(".")
         if self.url.port is not None and not self.url.is_default_port():
@@ -676,17 +684,19 @@ async def send(self, conn: "Connection") -> "ClientResponse":
         # - not CONNECT proxy must send absolute form URI
         # - most common is origin form URI
         if self.method == hdrs.METH_CONNECT:
-            connect_host = self.url.raw_host
-            assert connect_host is not None
-            if helpers.is_ipv6_address(connect_host):
-                connect_host = f"[{connect_host}]"
+            if _YARL_SUPPORTS_HOST_SUBCOMPONENT:
+                connect_host = self.url.host_subcomponent
+                assert connect_host is not None
+            else:
+                connect_host = self.url.raw_host
+                assert connect_host is not None
+                if helpers.is_ipv6_address(connect_host):
+                    connect_host = f"[{connect_host}]"
             path = f"{connect_host}:{self.url.port}"
         elif self.proxy and not self.is_ssl():
             path = str(self.url)
         else:
-            path = self.url.raw_path
-            if self.url.raw_query_string:
-                path += "?" + self.url.raw_query_string
+            path = self.url.raw_path_qs
 
         protocol = conn.protocol
         assert protocol is not None

tests/test_client_request.py

@@ -14,7 +14,7 @@
 from yarl import URL
 
 import aiohttp
-from aiohttp import BaseConnector, hdrs, helpers, payload
+from aiohttp import BaseConnector, client_reqrep, hdrs, helpers, payload
 from aiohttp.client_exceptions import ClientConnectionError
 from aiohttp.client_reqrep import (
     ClientRequest,
@@ -280,9 +280,16 @@ def test_host_header_ipv4(make_request) -> None:
     assert req.headers["HOST"] == "127.0.0.2"
 
 
-def test_host_header_ipv6(make_request) -> None:
-    req = make_request("get", "http://[::2]")
-    assert req.headers["HOST"] == "[::2]"
+@pytest.mark.parametrize("yarl_supports_host_subcomponent", [True, False])
+def test_host_header_ipv6(make_request, yarl_supports_host_subcomponent: bool) -> None:
+    # Ensure the old path is tested for old yarl versions
+    with mock.patch.object(
+        client_reqrep,
+        "_YARL_SUPPORTS_HOST_SUBCOMPONENT",
+        yarl_supports_host_subcomponent,
+    ):
+        req = make_request("get", "http://[::2]")
+        assert req.headers["HOST"] == "[::2]"
 
 
 def test_host_header_ipv4_with_port(make_request) -> None:

tests/test_proxy_functional.py

@@ -12,7 +12,7 @@
 from yarl import URL
 
 import aiohttp
-from aiohttp import web
+from aiohttp import client_reqrep, web
 from aiohttp.client_exceptions import ClientConnectionError
 from aiohttp.helpers import IS_MACOS, IS_WINDOWS
 
@@ -95,6 +95,7 @@ async def handler(*args, **kwargs):
     reason="asyncio on this python does not support TLS in TLS",
 )
 @pytest.mark.parametrize("web_server_endpoint_type", ("http", "https"))
+@pytest.mark.parametrize("yarl_supports_host_subcomponent", [True, False])
 @pytest.mark.filterwarnings(r"ignore:.*ssl.OP_NO_SSL*")
 # Filter out the warning from
 # https://github.com/abhinavsingh/proxy.py/blob/30574fd0414005dfa8792a6e797023e862bdcf43/proxy/common/utils.py#L226
@@ -104,18 +105,25 @@ async def test_secure_https_proxy_absolute_path(
     secure_proxy_url: URL,
     web_server_endpoint_url: str,
     web_server_endpoint_payload: str,
+    yarl_supports_host_subcomponent: bool,
 ) -> None:
     """Ensure HTTP(S) sites are accessible through a secure proxy."""
     conn = aiohttp.TCPConnector()
     sess = aiohttp.ClientSession(connector=conn)
 
-    async with sess.get(
-        web_server_endpoint_url,
-        proxy=secure_proxy_url,
-        ssl=client_ssl_ctx,  # used for both proxy and endpoint connections
-    ) as response:
-        assert response.status == 200
-        assert await response.text() == web_server_endpoint_payload
+    # Ensure the old path is tested for old yarl versions
+    with mock.patch.object(
+        client_reqrep,
+        "_YARL_SUPPORTS_HOST_SUBCOMPONENT",
+        yarl_supports_host_subcomponent,
+    ):
+        async with sess.get(
+            web_server_endpoint_url,
+            proxy=secure_proxy_url,
+            ssl=client_ssl_ctx,  # used for both proxy and endpoint connections
+        ) as response:
+            assert response.status == 200
+            assert await response.text() == web_server_endpoint_payload
 
     await sess.close()
     await conn.close()