Unable to get app-scoped bookmark for file - OS X sandbox
appstore-sandbox, macos
Solution
To my everlasting shame, it was my fault.
Somehow in moving the project to a different machine for testing and debugging, code-signing for the Development build got turned off.
Apparently this causes things to (almost) silently fail, with no error code and only a cryptic message in the console, and no other indication that anything else isn't working properly.
Leaving this up here in case someone else mistakenly does the same thing.
Problem
I've been scouring the net and Apple help for some sort of guidance on this and coming up short. I wonder if anyone has run into a similar situation, or might have some insight into what is (or isn't) happening. I'm trying to obtain an app-scoped bookmark for a file to be recalled in a later session by the application. I can confirm that the path itself is properly added to the sandbox after being selected by the user, because I can open (and reopen) it during the session when it is selected. However, trying to obtain a security-scoped bookmark to access it later isn't working. Here's what I'm doing: ``` NSURL *url = [[NSURL alloc] initFileURLWithPath:path]; NSError *error = nil; NSData *bookmarkData = [url bookmarkDataWithOptions:(1UL << 11) //NSURLBookmarkCreationWithSecurityScope includingResourceValuesForKeys:nil relativeToURL:nil error:&error]; [url release]; ``` I've tried it both with `url` generated from the string `path` as well as just testing it with, for instance, the result of the NSSavePanel's `URL`. (The string `path` is, for legacy reasons, the one I'd like to be able to use.) I'm having to use the value for `bookmarkDataWithOptions` instead of the constant because, for reasons of some other legacy code, I'm forced to compile with the 10.6 SDK where `NSURLBookmarkCreationWithSecurityScope` isn't available. I can confirm that path points to the file in question as "/Users/me/Documents/document.ext", and that the `NSURL` seems to initialize properly (or at least reflects that same path). The application includes the entitlement `com.apple.security.files.bookmarks.app-scope`. Anyway, this doesn't work. That code results in both a `bookmarkData` of 0x0 and an `error` of 0x0, and the console shows: `ScopedBookmarkAgent: Failed to retrieve app-scope key, aborting.` If I change `relativeToURL` to be `url` instead of `nil` and change the entitlement to `com.apple.security.files.bookmarks.document-scope`, then it seems to work properly — that is, `bookmarkData` at least gets a non-zero value and no error gets logged. But I'm pretty sure that's not what I want (i.e., a document-scope bookmark). Is there something obvious I'm doing wrong?