How can a Cocoa application add itself as a global login item? - cocoa

Question

I tried
LSSharedFileListRef globalLoginItems = LSSharedFileListCreate(NULL, kLSSharedFileListGlobalLoginItems, NULL);
if (globalLoginItems) {
LSSharedFileListItemRef ourLoginItem = LSSharedFileListInsertItemURL(globalLoginItems,
kLSSharedFileListItemLast,
NULL, NULL,
(CFURLRef)[[NSBundle mainBundle] bundleURL],
NULL, NULL);
if (ourLoginItem) {
CFRelease(ourLoginItem);
} else {
NSLog(#"Could not insert ourselves as a global login item");
}
CFRelease(globalLoginItems);
} else {
NSLog(#"Could not get the global login items");
}
LSSharedFileListInsertItemURL() just returned NULL when I built and ran the application. Is there something else that I need to do? Some kind of authorization?
NOTE: The use-case here is for global login items, that is using kLSSharedFileListGlobalLoginItems and not kLSSharedFileListSessionLoginItems.

Answer 1

I got this working. All I had to do was add these lines before I insert the app into the login items:
AuthorizationRef auth = NULL;
AuthorizationCreate(NULL, kAuthorizationEmptyEnvironment, kAuthorizationFlagDefaults, &auth);
LSSharedFileListSetAuthorization(globalLoginItems, auth);
The docs for LSSharedFileListSetAuthorization say that we have to get the right system.global-login-items for this, but it worked nevertheless!
But this will fail if the user is not an administrator. For it to work then too, you'll have to do this:
AuthorizationItem right[1] = {{"system.global-login-items.", 0, NULL, 0}};
AuthorizationRights setOfRights = {1, right};
AuthorizationRef auth = NULL;
AuthorizationCreate(NULL, kAuthorizationEmptyEnvironment, kAuthorizationFlagDefaults, &auth);
AuthorizationCopyRights(auth, &setOfRights, kAuthorizationEmptyEnvironment,
(kAuthorizationFlagDefaults
| kAuthorizationFlagInteractionAllowed
| kAuthorizationFlagExtendRights), NULL);
It's also advisable to refer to the docs for details.

Answer 2

This works for me:
NSString * appPath = [[NSBundle mainBundle] bundlePath];
// This will retrieve the path for the application
CFURLRef url = (CFURLRef)[NSURL fileURLWithPath:appPath];
// Create a reference to the shared file list.
// We are adding it to the current user only.
// If we want to add it all users, use
// kLSSharedFileListGlobalLoginItems instead of
//kLSSharedFileListSessionLoginItems
LSSharedFileListRef loginItems = LSSharedFileListCreate(NULL, kLSSharedFileListSessionLoginItems, NULL);
if (loginItems) {
//Insert an item to the list.
LSSharedFileListItemRef item = LSSharedFileListInsertItemURL(loginItems,kLSSharedFileListItemLast, NULL, NULL,url, NULL, NULL);
if (item){
CFRelease(item);
}
}
CFRelease(loginItems);

Answer 3

NSString * appPath = [[NSBundle mainBundle] bundlePath];
// This will retrieve the path for the application
CFURLRef url = (CFURLRef)[NSURL fileURLWithPath:appPath];
LSSharedFileListRef loginItems = LSSharedFileListCreate(NULL, kLSSharedFileListGlobalLoginItems, NULL);
if (loginItems) {
//Insert an item to the list.
LSSharedFileListItemRef item = LSSharedFileListInsertItemURL(loginItems,kLSSharedFileListItemLast, NULL, NULL,url, NULL, NULL);
if (item){
CFRelease(item);
}
}
CFRelease(loginItems);
Doesn't work this code? I replaced kLSSharedFileListSessionLoginItems with kLSSharedFileListGlobalLoginItems