/*
* Copyright 2014 Google Inc. All rights reserved.
*
* 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.google.play.developerapi.publisher.samples;
import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.repackaged.com.google.common.base.Preconditions;
import com.google.api.client.repackaged.com.google.common.base.Strings;
import com.google.api.client.util.store.FileDataStoreFactory;
import com.google.api.services.androidpublisher.AndroidPublisher;
import com.google.api.services.androidpublisher.AndroidPublisherScopes;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.Collections;
/**
* Helper class to initialize the publisher APIs client library.
* <p>
* Before making any calls to the API through the client library you need to
* call the {@link AndroidPublisherHelper#init(String, java.io.File, java.io.File)} method. This will run
* all precondition checks for for client id and secret setup properly in
* resources/client_secrets.json and authorize this client against the API.
* </p>
*/
public class AndroidPublisherHelper {
private static final Log log = LogFactory.getLog(AndroidPublisherHelper.class);
static final String MIME_TYPE_APK = "application/vnd.android.package-archive";
/** Global instance of the JSON factory. */
private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
/** Global instance of the HTTP transport. */
private static HttpTransport HTTP_TRANSPORT;
/** Installed application user ID. */
private static final String INST_APP_USER_ID = "user";
/**
* Global instance of the {@link com.google.api.client.util.store.DataStoreFactory}. The best practice is to
* make it a single globally shared instance across your application.
*/
private static FileDataStoreFactory dataStoreFactory;
/**
* Authorizes the installed application to access user's protected data.
*
* @throws java.io.IOException
* @throws java.security.GeneralSecurityException
*/
private static Credential authorizeWithInstalledApplication(File secretFile, File authStore) throws IOException {
log.info("Authorizing using installed application");
// load client secrets
GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(
JSON_FACTORY,
new FileReader(secretFile));
// Ensure file has been filled out.
checkClientSecretsFile(clientSecrets);
dataStoreFactory = new FileDataStoreFactory(authStore);
// set up authorization code flow
GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow
.Builder(HTTP_TRANSPORT,
JSON_FACTORY, clientSecrets,
Collections.singleton(AndroidPublisherScopes.ANDROIDPUBLISHER))
.setDataStoreFactory(dataStoreFactory).build();
// authorize
return new AuthorizationCodeInstalledApp(
flow, new LocalServerReceiver()).authorize(INST_APP_USER_ID);
}
/**
* Ensure the client secrets file has been filled out.
*
* @param clientSecrets the GoogleClientSecrets containing data from the
* file
*/
private static void checkClientSecretsFile(GoogleClientSecrets clientSecrets) {
if (clientSecrets.getDetails().getClientId().startsWith("[[INSERT")
|| clientSecrets.getDetails().getClientSecret().startsWith("[[INSERT")) {
log.error("Enter Client ID and Secret from "
+ "APIs console into resources/client_secrets.json.");
System.exit(1);
}
}
/**
* Performs all necessary setup steps for running requests against the API.
*
* @param applicationName the name of the application: com.example.app
* @param authStore
* @return the {@Link AndroidPublisher} service
* @throws java.security.GeneralSecurityException
* @throws java.io.IOException
*/
protected static AndroidPublisher init(String applicationName, File secretFile, File authStore) throws IOException, GeneralSecurityException {
Preconditions.checkArgument(!Strings.isNullOrEmpty(applicationName),
"applicationName cannot be null or empty!");
// Authorization.
newTrustedTransport();
Credential credential;
credential = authorizeWithInstalledApplication(secretFile, authStore);
// Set up and return API client.
return new AndroidPublisher.Builder(
HTTP_TRANSPORT, JSON_FACTORY, credential).setApplicationName(applicationName)
.build();
}
private static void newTrustedTransport() throws GeneralSecurityException,
IOException {
if (null == HTTP_TRANSPORT) {
HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
}
}
}