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I am getting following error while resolving Security Scoped Bookmark in my finder sync extension.
Error Domain=NSCocoaErrorDomain Code=259 "The File couldn't be opened because it isn't in the correct format."
and also possibly the related logging:
Failed to read values in CFPrefsPlistSource<0x6080000ee380> (Domain: MyAppGroupName, User: kCFPreferencesAnyUser, ByHost: Yes, Container: (null)): Using kCFPreferencesAnyUser with a container is only allowed for System Containers, detaching from cfprefsd
I am using following code to create Security Scoped bookmark in Container App:
NSUserDefaults *sharedDefaults = [[NSUserDefaults alloc] initWithSuiteName:@"com.mycomp.xyz"];
NSURL * theSelectedFolder = ....selected folder from NSOpenPanel....
NSData *bookmarkData = [theSelectedFolder bookmarkDataWithOptions:NSURLBookmarkCreationWithSecurityScope includingResourceValuesForKeys:nil relativeToURL:nil error:NULL];
[sharedDefaults setObject:bookmarkData forKey:@"BookmarkData"];
[sharedDefaults synchronize];
In Finder Sync Extension, I am using following code:
NSUserDefaults *sharedDefaults = [[NSUserDefaults alloc] initWithSuiteName:@"com.mycomp.xyz"];
NSData *bookmarkData = [sharedDefaults objectForKey:@"BookmarkData"];
BOOL bookmarkDataIsStale;
NSError *err;
NSURL *userSelectedUrl = [NSURL URLByResolvingBookmarkData:bookmarkData options:NSURLBookmarkResolutionWithSecurityScope relativeToURL:nil bookmarkDataIsStale:&bookmarkDataIsStale error:&err];
and i have also added this entitlement key:
com.apple.security.files.bookmarks.app-scope in both Finder Sync Extension as well as Container app.
I am new to cocoa programming and not being able to find any luck finder the problem.
What am I doing wrong? Can anyone help me out here?
303
In OS X, the Finder Sync extension point lets you cleanly and safely modify the Finder’s user interface to express file synchronization status and control. Unlike most extension points, Finder Sync does not add features to a host app.
Select Synchronizationfrom the menu on the left-hand side. For the Synchronization type, select Scoped. Choose Select groups, then search for and choose the groups to add. When all changes are made, select Save synchronization scope. Changing the scope of synchronization causes the managed domain to resynchronize all data.
If only a few users need to access the managed domain, you can synchronize only those user accounts. This scoped synchronization is group-based. When you configure group-based scoped synchronization, only the user accounts that belong to the groups you specify are synchronized to the managed domain.
Select Synchronizationfrom the menu on the left-hand side. To add a group, choose + Select groupsat the top, then choose the groups to add. To remove a group from the synchronization scope, select it from the list of currently synchronized groups and choose Remove groups. When all changes are made, select Save synchronization scope.
To save read-only bookmark data, use the bitmask [.withSecurityScope, .securityScopeAllowOnlyReadAccess]; not solely .securityScopeAllowOnlyReadAccess.
.securityScopeAllowOnlyReadAccessWhen combined with the
.withSecurityScopeoption, specifies that you want to create a security-scoped bookmark that, when resolved, provides a security-scoped URL allowing read-only access to a file-system resource; for use in an app that adopts App Sandbox.
https://developer.apple.com/documentation/corefoundation/cfurlbookmarkcreationoptions/1543362-securityscopeallowonlyreadaccess
url.bookmarkData(options: [.withSecurityScope, .securityScopeAllowOnlyReadAccess], includingResourceValuesForKeys: nil, relativeTo: nil)
Using only .securityScopeAllowOnlyReadAccess was giving me the error mentioned in the question when resolving from either the Main App or the Extension:
Error Domain=NSCocoaErrorDomain Code=259 "The file couldn’t be opened because it isn’t in the correct format."
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