Have fetch load ssl and user certs and set downloader client session

sdc/client.py

@@ -26,6 +26,8 @@ from urllib.error import HTTPError, URLError
 import json
 import parfive
 from rucio.client import Client
+import aiohttp
+import ssl
 
 walker = AttrWalker()
 
@@ -338,6 +340,8 @@ class KISClient(BaseClient):
         if not len(query_results):
             return
 
+        downloader.config.config.aiohttp_session_generator = self._load_ssl_certs
+
         for row in query_results:
             scope, name = row['links'].split(':')
 
@@ -351,6 +355,14 @@ class KISClient(BaseClient):
                                                                           **row.response_block_map),
                                                 headers=self.rucio.headers)
 
+    def _load_ssl_certs(self, config):
+        creds = self.rucio.creds
+        ssl_ctx = ssl.create_default_context(cafile=self.rucio.ca_cert)
+        ssl_ctx.load_cert_chain(creds['client_cert'], creds['client_key'])
+        conn = aiohttp.TCPConnector(ssl=ssl_ctx)
+
+        return aiohttp.ClientSession(connector=conn, headers=config.headers)
+
     @classmethod
     def _can_handle_query(cls, *query, hasinstr=False):
         """