GaugesAccountAuthenticator.java

/*
 * Copyright 2012 GitHub Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.github.mobile.gauges.authenticator;

import static android.accounts.AccountManager.KEY_ACCOUNT_AUTHENTICATOR_RESPONSE;
import static android.accounts.AccountManager.KEY_ACCOUNT_NAME;
import static android.accounts.AccountManager.KEY_ACCOUNT_TYPE;
import static android.accounts.AccountManager.KEY_AUTHTOKEN;
import static android.accounts.AccountManager.KEY_BOOLEAN_RESULT;
import static android.accounts.AccountManager.KEY_INTENT;
import static com.github.mobile.gauges.authenticator.AuthConstants.AUTHTOKEN_TYPE;
import static com.github.mobile.gauges.authenticator.AuthConstants.GAUGES_ACCOUNT_TYPE;
import static com.github.mobile.gauges.authenticator.GaugesAuthenticatorActivity.PARAM_AUTHTOKEN_TYPE;
import android.accounts.AbstractAccountAuthenticator;
import android.accounts.Account;
import android.accounts.AccountAuthenticatorResponse;
import android.accounts.AccountManager;
import android.accounts.NetworkErrorException;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;

import com.github.mobile.gauges.core.Client;
import com.github.mobile.gauges.core.GaugesService;

import java.io.IOException;

class GaugesAccountAuthenticator extends AbstractAccountAuthenticator {

    private static final String DESCRIPTION_CLIENT = "Gaug.es for Android";

    private final Context context;

    public GaugesAccountAuthenticator(Context context) {
        super(context);

        this.context = context;
    }

    /*
     * The user has requested to add a new account to the system. We return an intent that will launch our login screen
     * if the user has not logged in yet, otherwise our activity will just pass the user's credentials on to the account
     * manager.
     */
    @Override
    public Bundle addAccount(AccountAuthenticatorResponse response, String accountType, String authTokenType,
            String[] requiredFeatures, Bundle options) throws NetworkErrorException {
        final Intent intent = new Intent(context, GaugesAuthenticatorActivity.class);
        intent.putExtra(PARAM_AUTHTOKEN_TYPE, authTokenType);
        intent.putExtra(KEY_ACCOUNT_AUTHENTICATOR_RESPONSE, response);
        final Bundle bundle = new Bundle();
        bundle.putParcelable(KEY_INTENT, intent);
        return bundle;
    }

    @Override
    public Bundle confirmCredentials(AccountAuthenticatorResponse response, Account account, Bundle options) {
        return null;
    }

    @Override
    public Bundle editProperties(AccountAuthenticatorResponse response, String accountType) {
        return null;
    }

    @Override
    public Bundle getAuthToken(AccountAuthenticatorResponse response, Account account, String authTokenType,
            Bundle options) throws NetworkErrorException {
        String password = AccountManager.get(context).getPassword(account);
        Client client;
        try {
            GaugesService service = new GaugesService(account.name, password);
            client = service.getClient(DESCRIPTION_CLIENT);
            if (client == null)
                client = service.createClient(DESCRIPTION_CLIENT);
        } catch (IOException e) {
            throw new NetworkErrorException(e);
        }

        Bundle bundle = new Bundle();
        bundle.putString(KEY_ACCOUNT_NAME, account.name);
        bundle.putString(KEY_ACCOUNT_TYPE, GAUGES_ACCOUNT_TYPE);
        bundle.putString(KEY_AUTHTOKEN, client.getKey());
        return bundle;
    }

    @Override
    public String getAuthTokenLabel(String authTokenType) {
        return authTokenType.equals(AUTHTOKEN_TYPE) ? authTokenType : null;
    }

    @Override
    public Bundle hasFeatures(AccountAuthenticatorResponse response, Account account, String[] features)
            throws NetworkErrorException {
        final Bundle result = new Bundle();
        result.putBoolean(KEY_BOOLEAN_RESULT, false);
        return result;
    }

    @Override
    public Bundle updateCredentials(AccountAuthenticatorResponse response, Account account, String authTokenType,
            Bundle options) {
        return null;
    }
}