/*
* Copyright (c) 2012, Codename One and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Codename One designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Codename One through http://www.codenameone.com/ if you
* need additional information or have any questions.
*/
package com.codename1.social;
import com.codename1.facebook.FaceBookAccess;
import com.codename1.io.AccessToken;
import com.codename1.io.ConnectionRequest;
import com.codename1.io.NetworkManager;
import com.codename1.io.Oauth2;
import com.codename1.util.Callback;
/**
* Invokes the native bundled facebook SDK to login/logout of facebook, notice
* that in order for this to work server build arguments must indicate that you
* are using the facebook sdk! To accomplish this just define:
* facebook.appId=YourAppId in your build arguments. In order to obtain the app
* ID you need to create a native Android/iOS application and generate the right
* app id.
*
* @author Shai Almog
*/
public class FacebookConnect extends Login{
private static FacebookConnect instance;
static Class implClass;
private String[] permissions = new String[]{"public_profile", "email", "user_friends"};
FacebookConnect() {
setOauth2URL("https://www.facebook.com/dialog/oauth");
}
/**
* Gets the FacebookConnect singleton instance
* .
* @return the FacebookConnect instance
*/
public static FacebookConnect getInstance() {
if (instance == null) {
if (implClass != null) {
try {
instance = (FacebookConnect) implClass.newInstance();
} catch (Throwable t) {
instance = new FacebookConnect();
}
} else {
instance = new FacebookConnect();
}
}
return instance;
}
/**
* Indicates whether the native platform supports native facebook login
*
* @return true if supported
*/
public boolean isFacebookSDKSupported() {
return false;
}
/**
* Logs into facebook, notice that this call might suspend the application
* which might trigger repeated invocations of stop()/start() etc. This is
* due to the facebook SDK spawning a separate process to perform the login
* then returning to the application. Once logged in the facebook
* credentials will be available.
*
* @deprecated use doLogin
*/
public void login() {
throw new RuntimeException("Native facebook unsupported");
}
/**
* Logs out the current user from facebook
*
*/
public void doLogout() {
super.doLogout();
if(!isNativeLoginSupported()){
FaceBookAccess.logOut();
}
}
/**
* The facebook token that can be used to access facebook functionality
*
* @return the token
*/
public AccessToken getAccessToken() {
AccessToken t = super.getAccessToken();
if(t != null){
return t;
}
return new AccessToken(getToken(), null);
}
/**
* Indicates if the user is currently logged in
*
* @return true if logged in
* @deprecated use isUserLoggedIn() instead
*/
public boolean isLoggedIn() {
throw new RuntimeException("Native facebook unsupported, if you are running on the Simulator use isUserLoggedIn");
}
/**
* The facebook token that can be used to access facebook functionality
*
* @return the token
* @deprecated use getAccessToken instead
*/
public String getToken() {
throw new RuntimeException("Native facebook unsupported, if you are running on the Simulator use getAccessToken");
}
/**
* Logs out the current user from facebook
*
* @deprecated use doLogout instead
*/
public void logout() {
throw new RuntimeException("Native facebook unsupported, if you are running on the Simulator use doLogout");
}
/**
* Asks for publish permissions, this call might suspend the application
* which might trigger repeated invocations of stop()/start().
*/
public void askPublishPermissions(LoginCallback lc) {
throw new RuntimeException("Native facebook unsupported");
}
/**
* Returns true if the current session already has publish permissions
*
* @return
*/
public boolean hasPublishPermissions() {
throw new RuntimeException("Native facebook unsupported");
}
@Override
public boolean isNativeLoginSupported() {
return isFacebookSDKSupported();
}
@Override
protected Oauth2 createOauth2() {
FaceBookAccess.setClientId(clientId);
FaceBookAccess.setClientSecret(clientSecret);
FaceBookAccess.setRedirectURI(redirectURI);
FaceBookAccess.setPermissions(permissions);
return FaceBookAccess.getInstance().createOAuth();
}
@Override
public void nativelogin(){
login();
}
@Override
public void nativeLogout(){
logout();
}
@Override
public boolean nativeIsLoggedIn(){
return isLoggedIn();
}
/**
* Opens and invite dialog to invite friends to the app
* https://developers.facebook.com/docs/app-invites
*
* @param appLinkUrl App Link for what should be opened when the recipient
* clicks on the install/play button on the app invite page.
* @param previewImageUrl url to an image to be used in the invite, can be null
*/
public void inviteFriends(String appLinkUrl, String previewImageUrl){
}
/**
* Opens and invite dialog to invite friends to the app
* https://developers.facebook.com/docs/app-invites
*
* @param appLinkUrl App Link for what should be opened when the recipient
* clicks on the install/play button on the app invite page.
* @param previewImageUrl url to an image to be used in the invite, can be null
* @param cb a Callback to be used when we need to know if the Facebook invite was successful.
* If the invite was successful the onSucess method will be called
* If the user canceled the onError method will be called with error code -1.
* If an error occurred the onError method will be called with error code 0.
*
*/
public void inviteFriends(String appLinkUrl, String previewImageUrl, final Callback cb) {
}
/**
* Returns true if inviteFriends is implemented, it is supported on iOS and
* Android
*
* @return true if inviteFriends is implemented
*/
public boolean isInviteFriendsSupported(){
return false;
}
@Override
protected boolean validateToken(String token) {
//make a call to the API if the return value is 40X the token is not
//valid anymore
final boolean[] retval = new boolean[1];
retval[0] = true;
ConnectionRequest req = new ConnectionRequest() {
@Override
protected void handleErrorResponseCode(int code, String message) {
//access token not valid anymore
if (code >= 400 && code <= 410) {
retval[0] = false;
return;
}
super.handleErrorResponseCode(code, message);
}
};
req.setPost(false);
req.setUrl("https://graph.facebook.com/v2.4/me");
req.addArgumentNoEncoding("access_token", token);
NetworkManager.getInstance().addToQueueAndWait(req);
return retval[0];
}
}