Repository: electron/electron
Pull request: fix: `getAsFileSystemHandle` failure when drag-dropping two directories

Backport of #45234

See that PR for details.


Notes: Fixed an issue where drag-dropping two directories would cause `getAsFileSystemHandle` to never resolve.


Changed files:
filename: shell/browser/file_system_access/file_system_access_permission_context.cc
patch: @@ -566,7 +566,7 @@ void FileSystemAccessPermissionContext::ConfirmSensitiveEntryAccess(
     content::GlobalRenderFrameHostId frame_id,
     base::OnceCallback<void(SensitiveEntryResult)> callback) {
   DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
-  callback_ = std::move(callback);
+  callback_map_.try_emplace(path, std::move(callback));
 
   auto after_blocklist_check_callback = base::BindOnce(
       &FileSystemAccessPermissionContext::DidCheckPathAgainstBlocklist,
@@ -610,16 +610,18 @@ void FileSystemAccessPermissionContext::PerformAfterWriteChecks(
 }
 
 void FileSystemAccessPermissionContext::RunRestrictedPathCallback(
+    const base::FilePath& file_path,
     SensitiveEntryResult result) {
-  if (callback_)
-    std::move(callback_).Run(result);
+  if (auto val = callback_map_.extract(file_path))
+    std::move(val.mapped()).Run(result);
 }
 
 void FileSystemAccessPermissionContext::OnRestrictedPathResult(
+    const base::FilePath& file_path,
     gin::Arguments* args) {
   SensitiveEntryResult result = SensitiveEntryResult::kAbort;
   args->GetNext(&result);
-  RunRestrictedPathCallback(result);
+  RunRestrictedPathCallback(file_path, result);
 }
 
 void FileSystemAccessPermissionContext::DidCheckPathAgainstBlocklist(
@@ -632,8 +634,9 @@ void FileSystemAccessPermissionContext::DidCheckPathAgainstBlocklist(
   DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
 
   if (user_action == UserAction::kNone) {
-    RunRestrictedPathCallback(should_block ? SensitiveEntryResult::kAbort
-                                           : SensitiveEntryResult::kAllowed);
+    auto result = should_block ? SensitiveEntryResult::kAbort
+                               : SensitiveEntryResult::kAllowed;
+    RunRestrictedPathCallback(path, result);
     return;
   }
 
@@ -652,11 +655,11 @@ void FileSystemAccessPermissionContext::DidCheckPathAgainstBlocklist(
         "file-system-access-restricted", details,
         base::BindRepeating(
             &FileSystemAccessPermissionContext::OnRestrictedPathResult,
-            weak_factory_.GetWeakPtr()));
+            weak_factory_.GetWeakPtr(), path));
     return;
   }
 
-  RunRestrictedPathCallback(SensitiveEntryResult::kAllowed);
+  RunRestrictedPathCallback(path, SensitiveEntryResult::kAllowed);
 }
 
 void FileSystemAccessPermissionContext::MaybeEvictEntries(

filename: shell/browser/file_system_access/file_system_access_permission_context.h
patch: @@ -143,9 +143,11 @@ class FileSystemAccessPermissionContext
                                     content::GlobalRenderFrameHostId frame_id,
                                     bool should_block);
 
-  void RunRestrictedPathCallback(SensitiveEntryResult result);
+  void RunRestrictedPathCallback(const base::FilePath& file_path,
+                                 SensitiveEntryResult result);
 
-  void OnRestrictedPathResult(gin::Arguments* args);
+  void OnRestrictedPathResult(const base::FilePath& file_path,
+                              gin::Arguments* args);
 
   void MaybeEvictEntries(base::Value::Dict& dict);
 
@@ -169,7 +171,8 @@ class FileSystemAccessPermissionContext
 
   std::map<url::Origin, base::Value::Dict> id_pathinfo_map_;
 
-  base::OnceCallback<void(SensitiveEntryResult)> callback_;
+  std::map<base::FilePath, base::OnceCallback<void(SensitiveEntryResult)>>
+      callback_map_;
 
   base::WeakPtrFactory<FileSystemAccessPermissionContext> weak_factory_{this};
 };