SNOW-2176524 reapply closed socket detection patch

Author: sfc-gh-mmishchenko

src/snowflake/connector/vendored/urllib3/connection.py

@@ -338,13 +338,22 @@ def connect(self) -> None:
         if self._has_connected_to_proxy:
             self.proxy_is_verified = False
 
+    # See issue for more context: https://github.com/urllib3/urllib3/issues/1878
+    # the maintainers know that this issue can be resolve using the change below but
+    # they have not merged this change because they need to root-cause it. See
+    # comment: https://github.com/urllib3/urllib3/issues/1878#issuecomment-641548977
+    # adding the fix in our vendored code so our users get unblocked
+    def _is_closed_patch_for_invalid_socket_descriptor(self):
+        if getattr(self.sock, "fileno", lambda _: None)() == -1:
+            return True
+
     @property
     def is_closed(self) -> bool:
-        return self.sock is None
+        return self.sock is None or self._is_closed_patch_for_invalid_socket_descriptor()
 
     @property
     def is_connected(self) -> bool:
-        if self.sock is None:
+        if self.sock is None or self._is_closed_patch_for_invalid_socket_descriptor():
             return False
         return not wait_for_read(self.sock, timeout=0.0)