package org.apache.cordova.facebook;
import java.io.UnsupportedEncodingException;
import java.math.BigDecimal;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Currency;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.apache.cordova.CallbackContext;
import org.apache.cordova.CordovaPlugin;
import org.apache.cordova.PluginResult;
import org.apache.cordova.CordovaWebView;
import org.apache.cordova.CordovaInterface;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import com.facebook.AppEventsLogger;
import com.facebook.FacebookDialogException;
import com.facebook.FacebookException;
import com.facebook.FacebookOperationCanceledException;
import com.facebook.FacebookRequestError;
import com.facebook.FacebookServiceException;
import com.facebook.Request;
import com.facebook.Response;
import com.facebook.Session;
import com.facebook.SessionState;
import com.facebook.UiLifecycleHelper;
import com.facebook.model.GraphObject;
import com.facebook.model.GraphUser;
import com.facebook.widget.FacebookDialog;
import com.facebook.widget.WebDialog;
import com.facebook.widget.WebDialog.OnCompleteListener;
public class ConnectPlugin extends CordovaPlugin {
private static final String PUBLISH_PERMISSION_PREFIX = "publish";
private static final String MANAGE_PERMISSION_PREFIX = "manage";
@SuppressWarnings("serial")
private static final Set<String> OTHER_PUBLISH_PERMISSIONS = new HashSet<String>() {
{
add("ads_management");
add("create_event");
add("rsvp_event");
}
};
private final String TAG = "ConnectPlugin";
private AppEventsLogger logger;
private String applicationId = null;
private CallbackContext loginContext = null;
private CallbackContext showDialogContext = null;
private CallbackContext graphContext = null;
private Bundle paramBundle;
private String method;
private String graphPath;
private String userID;
private UiLifecycleHelper uiHelper;
private boolean trackingPendingCall = false;
@Override
public void initialize(CordovaInterface cordova, CordovaWebView webView) {
//Initialize UiLifecycleHelper
uiHelper = new UiLifecycleHelper(cordova.getActivity(), null);
// Init logger
logger = AppEventsLogger.newLogger(cordova.getActivity());
int appResId = cordova.getActivity().getResources().getIdentifier("fb_app_id", "string", cordova.getActivity().getPackageName());
applicationId = cordova.getActivity().getString(appResId);
// Set up the activity result callback to this class
cordova.setActivityResultCallback(this);
// Open a session if we have one cached
Session session = new Session.Builder(cordova.getActivity()).setApplicationId(applicationId).build();
if (session.getState() == SessionState.CREATED_TOKEN_LOADED) {
Session.setActiveSession(session);
// - Create the request
Session.OpenRequest openRequest = new Session.OpenRequest(cordova.getActivity());
// - Set the status change call back
openRequest.setCallback(new Session.StatusCallback() {
@Override
public void call(Session session, SessionState state, Exception exception) {
onSessionStateChange(state, exception);
}
});
session.openForRead(openRequest);
}
// If we have a valid open session, get user's info
if (session != null && session.isOpened()) {
// Call this method to initialize the session state info
onSessionStateChange(session.getState(), null);
}
super.initialize(cordova, webView);
}
@Override
public void onResume(boolean multitasking) {
super.onResume(multitasking);
uiHelper.onResume();
// Developers can observe how frequently users activate their app by logging an app activation event.
AppEventsLogger.activateApp(cordova.getActivity());
}
protected void onSaveInstanceState(Bundle outState) {
uiHelper.onSaveInstanceState(outState);
}
public void onPause() {
uiHelper.onPause();
}
@Override
public void onDestroy() {
super.onDestroy();
uiHelper.onDestroy();
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
Log.d(TAG, "activity result in plugin");
if (trackingPendingCall) {
uiHelper.onActivityResult(requestCode, resultCode, intent, new FacebookDialog.Callback() {
@Override
public void onError(FacebookDialog.PendingCall pendingCall, Exception error, Bundle data) {
Log.e("Activity", String.format("Error: %s", error.toString()));
handleError(error);
}
@Override
public void onComplete(FacebookDialog.PendingCall pendingCall, Bundle data) {
Log.i("Activity", "Success!");
handleSuccess(data);
}
});
} else {
Session session = Session.getActiveSession();
if (session != null && (loginContext != null || session.isOpened())) {
session.onActivityResult(cordova.getActivity(), requestCode, resultCode, intent);
}
}
trackingPendingCall = false;
}
@Override
public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException {
if (action.equals("login")) {
Log.d(TAG, "login FB");
// Get the permissions
String[] arrayPermissions = new String[args.length()];
for (int i = 0; i < args.length(); i++) {
arrayPermissions[i] = args.getString(i);
}
List<String> permissions = null;
if (arrayPermissions.length > 0) {
permissions = Arrays.asList(arrayPermissions);
}
// Get the currently active session
Session session = Session.getActiveSession();
// Set a pending callback to cordova
loginContext = callbackContext;
PluginResult pr = new PluginResult(PluginResult.Status.NO_RESULT);
pr.setKeepCallback(true);
loginContext.sendPluginResult(pr);
// Check if the active session is open
if (session != null && session.isOpened()) {
// Reauthorize flow
boolean publishPermissions = false;
boolean readPermissions = false;
// Figure out if this will be a read or publish reauthorize
if (permissions == null) {
// No permissions, read
readPermissions = true;
}
// Loop through the permissions to see what
// is being requested
for (String permission : arrayPermissions) {
if (isPublishPermission(permission)) {
publishPermissions = true;
} else {
readPermissions = true;
}
// Break if we have a mixed bag, as this is an error
if (publishPermissions && readPermissions) {
break;
}
}
if (publishPermissions && readPermissions) {
callbackContext.error("Cannot ask for both read and publish permissions.");
} else {
// Set up the new permissions request
Session.NewPermissionsRequest newPermissionsRequest = new Session.NewPermissionsRequest(cordova.getActivity(), permissions);
// Set up the activity result callback to this class
cordova.setActivityResultCallback(this);
// Check for write permissions, the default is read (empty)
if (publishPermissions) {
// Request new publish permissions
session.requestNewPublishPermissions(newPermissionsRequest);
} else {
// Request new read permissions
session.requestNewReadPermissions(newPermissionsRequest);
}
}
} else {
// Initial login, build a new session open request.
// - Create a new session and set the application ID
session = new Session.Builder(cordova.getActivity()).setApplicationId(applicationId).build();
Session.setActiveSession(session);
// - Create the request
Session.OpenRequest openRequest = new Session.OpenRequest(cordova.getActivity());
// - Set the permissions
openRequest.setPermissions(permissions);
// - Set the status change call back
openRequest.setCallback(new Session.StatusCallback() {
@Override
public void call(Session session, SessionState state, Exception exception) {
onSessionStateChange(state, exception);
}
});
// Can only ask for read permissions initially
session.openForRead(openRequest);
}
return true;
} else if (action.equals("logout")) {
Session session = Session.getActiveSession();
if (session != null) {
if (session.isOpened()) {
session.closeAndClearTokenInformation();
userID = null;
callbackContext.success();
} else {
// Session not open
callbackContext.error("Session not open.");
}
} else {
callbackContext.error("No valid session found, must call init and login before logout.");
}
return true;
} else if (action.equals("getLoginStatus")) {
callbackContext.success(getResponse());
return true;
} else if (action.equals("getAccessToken")) {
Session session = Session.getActiveSession();
if (session != null) {
if (session.isOpened()) {
callbackContext.success(session.getAccessToken());
} else {
// Session not open
callbackContext.error("Session not open.");
}
} else {
callbackContext
.error("No valid session found, must call init and login before logout.");
}
return true;
} else if (action.equals("logEvent")) {
if (args.length() == 0) {
// Not enough parameters
callbackContext.error("Invalid arguments");
return true;
}
String eventName = args.getString(0);
if (args.length() == 1) {
logger.logEvent(eventName);
} else {
// args is greater than 1
JSONObject params = args.getJSONObject(1);
Bundle parameters = new Bundle();
Iterator<?> iterator = params.keys();
while (iterator.hasNext()) {
try {
// Try get a String
String value = params.getString((String) iterator.next());
parameters.putString((String) iterator.next(), value);
} catch (Exception e) {
// Maybe it was an int
Log.w(TAG, "Type in AppEvent parameters was not String for key: " + (String) iterator.next());
try {
int value = params.getInt((String) iterator.next());
parameters.putInt((String) iterator.next(), value);
} catch (Exception e2) {
// Nope
Log.e(TAG, "Unsupported type in AppEvent parameters for key: " + (String) iterator.next());
}
}
}
if (args.length() == 2) {
logger.logEvent(eventName, parameters);
}
if (args.length() == 3) {
double value = args.getDouble(2);
logger.logEvent(eventName, value, parameters);
}
}
callbackContext.success();
return true;
} else if (action.equals("logPurchase")) {
/*
* While calls to logEvent can be made to register purchase events,
* there is a helper method that explicitly takes a currency indicator.
*/
if (args.length() != 2) {
callbackContext.error("Invalid arguments");
return true;
}
int value = args.getInt(0);
String currency = args.getString(1);
logger.logPurchase(BigDecimal.valueOf(value), Currency.getInstance(currency));
callbackContext.success();
return true;
} else if (action.equals("showDialog")) {
Bundle collect = new Bundle();
JSONObject params = null;
try {
params = args.getJSONObject(0);
} catch (JSONException e) {
params = new JSONObject();
}
final ConnectPlugin me = this;
Iterator<?> iter = params.keys();
while (iter.hasNext()) {
String key = (String) iter.next();
if (key.equals("method")) {
try {
this.method = params.getString(key);
} catch (JSONException e) {
Log.w(TAG, "Nonstring method parameter provided to dialog");
}
} else {
try {
collect.putString(key, params.getString(key));
} catch (JSONException e) {
// Need to handle JSON parameters
Log.w(TAG, "Nonstring parameter provided to dialog discarded");
}
}
}
this.paramBundle = new Bundle(collect);
// Begin by sending a callback pending notice to Cordova
showDialogContext = callbackContext;
PluginResult pr = new PluginResult(PluginResult.Status.NO_RESULT);
pr.setKeepCallback(true);
showDialogContext.sendPluginResult(pr);
// Setup callback context
final OnCompleteListener dialogCallback = new OnCompleteListener() {
@Override
public void onComplete(Bundle values, FacebookException exception) {
if (exception != null) {
handleError(exception);
} else {
handleSuccess(values);
}
}
};
if (this.method.equalsIgnoreCase("feed")) {
Runnable runnable = new Runnable() {
public void run() {
WebDialog feedDialog = (new WebDialog.FeedDialogBuilder(me.cordova.getActivity(), Session.getActiveSession(), paramBundle)).setOnCompleteListener(dialogCallback).build();
feedDialog.show();
}
};
cordova.getActivity().runOnUiThread(runnable);
} else if (this.method.equalsIgnoreCase("apprequests")) {
Runnable runnable = new Runnable() {
public void run() {
WebDialog requestsDialog = (new WebDialog.RequestsDialogBuilder(me.cordova.getActivity(), Session.getActiveSession(), paramBundle)).setOnCompleteListener(dialogCallback)
.build();
requestsDialog.show();
}
};
cordova.getActivity().runOnUiThread(runnable);
} else if (this.method.equalsIgnoreCase("share") || this.method.equalsIgnoreCase("share_open_graph")) {
if (FacebookDialog.canPresentShareDialog(me.cordova.getActivity(), FacebookDialog.ShareDialogFeature.SHARE_DIALOG)) {
Runnable runnable = new Runnable() {
public void run() {
// Publish the post using the Share Dialog
FacebookDialog shareDialog = new FacebookDialog.ShareDialogBuilder(me.cordova.getActivity())
.setName(paramBundle.getString("name"))
.setCaption(paramBundle.getString("caption"))
.setDescription(paramBundle.getString("description"))
.setLink(paramBundle.getString("link"))
.setPicture(paramBundle.getString("picture"))
.build();
uiHelper.trackPendingDialogCall(shareDialog.present());
}
};
this.trackingPendingCall = true;
cordova.getActivity().runOnUiThread(runnable);
} else {
// Fallback. For example, publish the post using the Feed Dialog
Runnable runnable = new Runnable() {
public void run() {
WebDialog feedDialog = (new WebDialog.FeedDialogBuilder(me.cordova.getActivity(), Session.getActiveSession(), paramBundle)).setOnCompleteListener(dialogCallback).build();
feedDialog.show();
}
};
cordova.getActivity().runOnUiThread(runnable);
}
} else {
callbackContext.error("Unsupported dialog method.");
}
return true;
} else if (action.equals("graphApi")) {
graphContext = callbackContext;
PluginResult pr = new PluginResult(PluginResult.Status.NO_RESULT);
pr.setKeepCallback(true);
graphContext.sendPluginResult(pr);
graphPath = args.getString(0);
JSONArray arr = args.getJSONArray(1);
final List<String> permissionsList = new ArrayList<String>();
for (int i = 0; i < arr.length(); i++) {
permissionsList.add(arr.getString(i));
}
final Session session = Session.getActiveSession();
final ConnectPlugin me = this;
boolean publishPermissions = false;
boolean readPermissions = false;
if (permissionsList.size() > 0) {
for (String permission : permissionsList) {
if (isPublishPermission(permission)) {
publishPermissions = true;
} else {
readPermissions = true;
}
// Break if we have a mixed bag, as this is an error
if (publishPermissions && readPermissions) {
break;
}
}
if (publishPermissions && readPermissions) {
graphContext.error("Cannot ask for both read and publish permissions.");
} else {
if (session.getPermissions().containsAll(permissionsList)) {
makeGraphCall();
} else {
// Set up the new permissions request
Session.NewPermissionsRequest newPermissionsRequest = new Session.NewPermissionsRequest(cordova.getActivity(), permissionsList);
// Set up the activity result callback to this class
cordova.setActivityResultCallback(me);
// Check for write permissions, the default is read (empty)
if (publishPermissions) {
// Request new publish permissions
session.requestNewPublishPermissions(newPermissionsRequest);
} else {
// Request new read permissions
session.requestNewReadPermissions(newPermissionsRequest);
}
}
}
} else {
makeGraphCall();
}
return true;
}
return false;
}
private void handleError(Exception exception) {
String errMsg = "Facebook error: " + exception.getMessage();
// User clicked "x"
if (exception instanceof FacebookOperationCanceledException) {
errMsg = "User cancelled dialog";
} else if (exception instanceof FacebookDialogException) {
// Dialog error
errMsg = "Dialog error: " + exception.getMessage();
} else if (exception instanceof FacebookServiceException) {
FacebookRequestError error = ((FacebookServiceException) exception).getRequestError();
if (error.getErrorCode() == 4201) {
// User hit the cancel button in the WebView
// Tried error.getErrorMessage() but it returns null
// if though the URL says:
// Redirect URL: fbconnect://success?error_code=4201&error_message=User+canceled+the+Dialog+flow
errMsg = "User cancelled dialog";
}
}
Log.e(TAG, errMsg);
showDialogContext.error(errMsg);
}
private void handleSuccess(Bundle values) {
// Handle a successful dialog:
// Send the URL parameters back, for a requests dialog, the "request" parameter
// will include the resulting request id. For a feed dialog, the "post_id"
// parameter will include the resulting post id.
// Note: If the user clicks on the Cancel button, the parameter will be empty
if (values.size() > 0) {
JSONObject response = new JSONObject();
try {
Set<String> keys = values.keySet();
for (String key : keys) {
response.put(key, values.get(key));
}
} catch (JSONException e) {
e.printStackTrace();
}
showDialogContext.success(response);
} else {
Log.e(TAG, "User cancelled dialog");
showDialogContext.error("User cancelled dialog");
}
}
private void getUserInfo(final Session session) {
if (cordova != null) {
Request.newMeRequest(session, new Request.GraphUserCallback() {
@Override
public void onCompleted(GraphUser user, Response response) {
// Create a new result with response data
if (loginContext != null) {
GraphObject graphObject = response.getGraphObject();
Log.d(TAG, "returning login object " + graphObject.getInnerJSONObject().toString());
userID = user.getId();
loginContext.success(getResponse());
loginContext = null;
}
}
}).executeAsync();
}
}
private void makeGraphCall() {
Session session = Session.getActiveSession();
Request.Callback graphCallback = new Request.Callback() {
@Override
public void onCompleted(Response response) {
if (graphContext != null) {
if (response.getError() != null) {
graphContext.error(response.getError().getErrorMessage());
} else {
GraphObject graphObject = response.getGraphObject();
graphContext.success(graphObject.getInnerJSONObject());
}
graphPath = null;
graphContext = null;
}
}
};
//If you're using the paging URLs they will be URLEncoded, let's decode them.
try {
graphPath = URLDecoder.decode(graphPath, "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
String[] urlParts = graphPath.split("\\?");
String graphAction = urlParts[0];
Request graphRequest = Request.newGraphPathRequest(null, graphAction, graphCallback);
Bundle params = graphRequest.getParameters();
if (urlParts.length > 1) {
String[] queries = urlParts[1].split("&");
for (String query : queries) {
int splitPoint = query.indexOf("=");
if (splitPoint > 0) {
String key = query.substring(0, splitPoint);
String value = query.substring(splitPoint + 1, query.length());
params.putString(key, value);
}
}
}
params.putString("access_token", session.getAccessToken());
graphRequest.setParameters(params);
graphRequest.executeAsync();
}
/*
* Handles session state changes
*/
private void onSessionStateChange(SessionState state, Exception exception) {
final Session session = Session.getActiveSession();
// Check if the session is open
if (state.isOpened()) {
if (loginContext != null) {
// Get user info
getUserInfo(session);
} else if (graphContext != null) {
// Make the graph call
makeGraphCall();
}
}
}
/*
* Checks for publish permissions
*/
private boolean isPublishPermission(String permission) {
return permission != null && (permission.startsWith(PUBLISH_PERMISSION_PREFIX) || permission.startsWith(MANAGE_PERMISSION_PREFIX) || OTHER_PUBLISH_PERMISSIONS.contains(permission));
}
/**
* Create a Facebook Response object that matches the one for the Javascript SDK
* @return JSONObject - the response object
*/
public JSONObject getResponse() {
String response;
Session session = Session.getActiveSession();
if (session != null && session.isOpened()) {
Date today = new Date();
long expiresTimeInterval = (session.getExpirationDate().getTime() - today.getTime()) / 1000L;
long expiresIn = (expiresTimeInterval > 0) ? expiresTimeInterval : 0;
response = "{"
+ "\"status\": \"connected\","
+ "\"authResponse\": {"
+ "\"accessToken\": \"" + session.getAccessToken() + "\","
+ "\"expiresIn\": \"" + expiresIn + "\","
+ "\"session_key\": true,"
+ "\"sig\": \"...\","
+ "\"userID\": \"" + this.userID + "\""
+ "}"
+ "}";
} else {
response = "{"
+ "\"status\": \"unknown\""
+ "}";
}
try {
return new JSONObject(response);
} catch (JSONException e) {
e.printStackTrace();
}
return new JSONObject();
}
private class WebDialogBuilderRunnable implements Runnable {
private Context context;
private Session session;
private String method;
private Bundle paramBundle;
private OnCompleteListener dialogCallback;
public WebDialogBuilderRunnable(Context context, Session session, String method, Bundle paramBundle, OnCompleteListener dialogCallback) {
this.context = context;
this.session = session;
this.method = method;
this.paramBundle = paramBundle;
this.dialogCallback = dialogCallback;
}
public void run() {
WebDialog shareDialog = (new WebDialog.Builder(context, session, method, paramBundle)).setOnCompleteListener(dialogCallback).build();
shareDialog.show();
}
}
}