Apply tls_verify and tls_cacerts config to ImageDownloader (#11715)

Author: ntouran

sphinx/transforms/post_transforms/images.py

@@ -75,7 +75,10 @@ def handle(self, node: nodes.image) -> None:
                 timestamp: float = ceil(os.stat(path).st_mtime)
                 headers['If-Modified-Since'] = epoch_to_rfc1123(timestamp)
 
-            r = requests.get(node['uri'], headers=headers)
+            r = requests.get(
+                node['uri'], headers=headers,
+                _user_agent=self.app.config.user_agent,
+                _tls_info=(self.app.config.tls_verify, self.app.config.tls_cacerts))
             if r.status_code >= 400:
                 logger.warning(__('Could not fetch remote image: %s [%d]') %
                                (node['uri'], r.status_code))