/**
* Invalidates and then revalidates the auth token for the currently logged in user Shouldn't be
* called from the main thread--will block on network calls
*
* @return valid token on success, null on failure
*/
public static synchronized String validateAuthToken(Context c, String token)
throws GoogleTasksException {
GoogleAccountManager accountManager = new GoogleAccountManager(ContextManager.getContext());
if (testToken(token)) {
return token;
}
// If fail, token may have expired -- get a new one and return that
String accountName = Preferences.getStringValue(GtasksPreferenceService.PREF_USER_NAME);
Account a = accountManager.getAccountByName(accountName);
if (a == null) {
throw new GoogleTasksException(
c.getString(R.string.gtasks_error_accountNotFound, accountName), "account-not-found");
}
for (int i = 0; i < REVALIDATION_TRIES; i++) {
accountManager.invalidateAuthToken(token);
// try with notify-auth-failure = false
AccountManagerFuture<Bundle> future =
accountManager.manager.getAuthToken(a, GtasksInvoker.AUTH_TOKEN_TYPE, false, null, null);
token = getTokenFromFuture(c, future);
if (TOKEN_INTENT_RECEIVED.equals(token)) {
return null;
} else if (token != null && testToken(token)) {
return token;
}
}
throw new GoogleTasksException(
c.getString(R.string.gtasks_error_authRefresh), "auth-token-refresh");
}
public void loadAccount(boolean tokenExpired) {
// Load account from preferences
SharedPreferences settings = getSharedPreferences(PREF_FILE, 0);
String accountName = settings.getString("accountName", null);
Account account = accountManager.getAccountByName(accountName);
if (account != null) {
if (tokenExpired) {
accountManager.invalidateAuthToken(accessProtectedResource.getAccessToken());
accessProtectedResource.setAccessToken(null);
}
setAccount(account);
} else showDialog(DIALOG_ACCOUNTS);
}
private AlertDialog showDialogAccounts() {
final Account[] accounts = accountManager.getAccounts();
final int size = accounts.length;
String[] names = new String[size];
for (int i = 0; i < size; i++) {
names[i] = accounts[i].name;
}
AlertDialog.Builder dialogAccounts =
new AlertDialog.Builder(this)
.setTitle(getString(R.string.select_account))
.setItems(
names,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
setAccount(accounts[which]);
}
});
return dialogAccounts.create();
}