Mac cookie authentication

[tomastiminskas]

I have implemented Tor.framework on my MacOS app and it's been working for a while. After we released a few new versions we started to get reports of Tor circuit errors and when debugging we found that control_auth_cookie file is missing, then torController can't authenticate with cookie.

The directory is there at /Library/Containers/BundleIdentifier/Data/Library/Caches/tor/ but there's nothing inside it.

Pasting below the torBaseConfig:

private static let torBaseConf : TorConfiguration = {
        let conf = TorConfiguration()
        conf.cookieAuthentication = true

        #if DEBUG
        let logLocation = "notice stdout"
        #else
        let logLocation = "notice file /dev/null"
        #endif

        conf.arguments = [
            "--allow-missing-torrc",
            "--ignore-missing-torrc",
            "--ClientOnly", "1",
            "--AvoidDiskWrites", "1",
            "--SocksPort", "127.0.0.1:39050",
            "--ControlPort", "127.0.0.1:39060",
            "--Log", logLocation,
            "--ClientUseIPv6", "1"
        ]

        // Store in <appdir>/Library/Caches/tor to persist descriptors etc
        if let dataDir = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask)
            .first?.appendingPathComponent("tor", isDirectory: true) {

            // Create data dir if necessary
            try? FileManager.default.createDirectory(at: dataDir, withIntermediateDirectories: true)

            // Create auth dir if necessary
            let authDir = dataDir.appendingPathComponent("auth", isDirectory: true)
            try? FileManager.default.createDirectory(at: authDir, withIntermediateDirectories: true)

            conf.dataDirectory = dataDir
            conf.arguments += ["--ClientOnionAuthDir", authDir.path]
        }

        return conf
    }()