Apple Event Temporary Exception

When you adopt App Sandbox, your app retains the ability to:

• Receive Apple events

• Send Apple events to itself

• Respond to Apple events it receives

However, with App Sandbox you cannot send Apple events to other apps unless you configure a scripting-targets entitlement or an apple-events temporary exception entitlement.

The scripting-targets entitlement is the preferred way to request the ability to send Apple events to apps that provide scripting access groups, as described in App Sandbox Entitlement Keys.

When an app you are scripting does not provide scripting access groups, use the apple-events temporary exception entitlement instead. This entitlement contains an array of strings, each of which should contain the bundle identifier of an app to which you want to send Apple events. For example, to enable sending Apple events to iPhoto from your app, you can pass an array containing a single string whose value is com.apple.iphoto.

The scripting-targets and apple-events entitlements are not mutually exclusive, even for a single target app. For example, if your app has a minimum OS version earlier than 10.8, when scripting-targets was introduced, and your app scripts the Apple Mail app to compose messages, you continue using the temporary entitlement (modified to include the suffix :before:10.8), while also including the scripting-targets entitlement for 10.8 and later compatibility, as show below:

<key>com.apple.security.temporary-exception.apple-events:before:10.8</key>

    <string>com.apple.mail</string>

<key>com.apple.security.scripting-targets</key>

<dict>

    <key>com.apple.mail</key>

    <array>

        <string>com.apple.mail.compose</string>

    </array>

</dict>

Audio Unit Hosting Temporary Exception

By default, sandboxed apps load only audio unit plugins that declare themselves to be safe for use in a sandbox. With this temporary exception, the user is instead asked for permission when the app attempts to load an unsafe (or undeclared) plugin.

Global Mach Service Temporary Exception

With App Sandbox, lookup of global Mach services fails unless you configure the mach-lookup.global.name temporary exception entitlement. For each service that you want to enable, add the service as a string value for this entitlement key’s value array.

Global Mach Service Dynamic Registration Temporary Exception

With App Sandbox, dynamic registration of global Mach services fails unless you configure the mach-register.global-name temporary exception entitlement. For each service that you want to enable, add the service as a string value for this entitlement key’s value array.

File Access Temporary Exceptions

With App Sandbox, your app has access only to its container, to its application group containers, to locations that are POSIX world-readable, and to locations in the file system that the user indicates direct intent to use, such as by interacting with an Open or Save dialog. If your app needs permanent access to other locations, you can bring additional locations into your sandbox by enabling the temporary exception entitlement keys described here.

For each path that you want to enable access to, specify the path as a string value for the appropriate entitlement key’s value array. Each string must start with a slash (/) character—whether it represents an absolute path or a path relative to the user’s home directory. If a path you provide specifies a directory rather a file, you must end the path with a slash character.

• For a home-relative-path temporary exception, provide a path relative to the user’s home directory; that is, relative to ~

• For an absolute-path temporary exception, provide an absolute path; that is, relative to /

Do not use a read/write entitlement when a read-only entitlement will do.

IOKit User Client Class Temporary Exception

If you need to grant the ability to interact with other subclasses of IOUserClient, use the following entitlement.

Shared Preference Domain Temporary Exceptions

If your app needs read-only or read/write access to a shared preference domain, use the following entitlements. Do not use a read/write entitlement when a read-only entitlement will do.