Maybe I should rephrase the question. In PGP/GPG the signature and the encrypted message are usually embedded as attachments in the email. This way, a recipient that doesn't have PGP/GPG installed (anymore) will see an empty email with an encrypted.asc file instead of the encrypted gibberish in the body of the email.
I'd like to do the same as PGP/GPG and store the signature and the ciphertext in an attachment. How do I do that?
PuzzleMaster
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This is still broken in MacOS 12.2
Same issue here. It's a relief to read I'm not the only person having this exact issue.
I see what you mean: If you store the file resource identifier, you can use the identifier from newURL and simply ignore oldURL. You really don't need it. Thanks so much, that is indeed the solution.If I understand you correctly, the solution would be something like this in code.import Cocoa
final class Controller: NSObject, NSFilePresenter {
var presentedItemURL: URL?
var presentedItemOperationQueue: OperationQueue = OperationQueue()
var root: FileNode?
// ...
func presentedSubitem(at oldURL: URL, didMoveTo newURL: URL) {
// Ignore oldURL. Find node based on resource identifier of newURL
guard let node = root?.search(for: newURL) else { return }
// Move node to now location
}
}
final class FileNode: NSObject {
var url: URL
var identifier: NSObjectProtocol?
@objc var children = [FileNode]()
// ...
func search(for target: URL) throws -> FileNode? {
guard let identifier = self.url.identifier, let targetIdentifier = target.identifier else {
throw Error.NoIdentifier
}
if identifier.isEqual(targetIdentifier) {
return self
} else {
// Traverse tree
}
return nil
}
}
extension URL {
var identifier: NSObjectProtocol? {
return (try? resourceValues(forKeys: [.fileResourceIdentifierKey]))?.fileResourceIdentifier
}
}
I've (kind of) solved it by taking the relative paths and check if either's suffix is equal to the other relative path. There are a few edge cases where this doesn't work, so a more solid solution is welcome.static func &=(lhs: URL, rhs: URL) -> Bool {
guard let idl = lhs.identifier, let idr = rhs.identifier else {
if lhs.relativePath.hasSuffix(rhs.relativePath) || rhs.relativePath.hasSuffix(lhs.relativePath) {
return true
} else { return lhs == rhs }
}
return idl.isEqual(idr)
}