fields, auth_response, session restore, init with dict

README.md

@@ -1,5 +1,7 @@
 # OpenFB #
 
+Modified OpenFB is a fork of OpenFB.
+
 OpenFB is a micro-library that lets you integrate your JavaScript applications with Facebook. It works for both browser-based and Cordova/PhoneGap apps.
 
 OpenFB has no dependency: You don't need the Facebook plugin when running in Cordova. You also don't need the Facebook SDK.
@@ -29,6 +31,12 @@ Post on the user's feed:
             error: errorHandler
         });
 
+Get the user ID:
+
+    openFB.api({path: '/me?fields:id', success: successHandler, error: errorHandler});
+
+
+
 The approach used in OpenFB (plain OAuth + direct requests to Graph API endpoints) is simple and lightweight, but it is definitely not perfect.
 
 Pros:

contributors

@@ -0,0 +1 @@
+- Fernando Junior (@fernandojunior)

index.html

@@ -13,7 +13,9 @@
 <hr/>
 
 <p>Name: <span id="userName"></span></p>
+<p>ID: <span id="userID"></span></p>
 <button class="btn btn-block" onclick="getInfo()">Get My Info</button>
+<button class="btn btn-block" onclick="getUserId()">Get My ID</button>
 <hr/>
 
 <textarea id="Message" placeholder="What's on your mind?" rows="5"></textarea>
@@ -26,11 +28,15 @@
 <script src="openfb.js"></script>
 
 <script>
-
-    openFB.init('YOUR_FB_APP_ID'); // Defaults to sessionStorage for storing the Facebook token
+
+    openFB.init({
+        app_id: "YOUR_FB_APP_ID",
+        //redirect_url: "http://localhost/oauthcallback.html" // oauth redirect url
+        // auth_response: {access_token: "", expires_in: "", user_id: ""}, // restore a session
+    }); // Defaults to sessionStorage for storing the Facebook token
 
 //  Uncomment the line below to store the Facebook token in localStorage instead of sessionStorage
-//  openFB.init('YOUR_FB_APP_ID', 'http://localhost/openfb/oauthcallback.html', window.localStorage);
+//  openFB.init({app_id: 'YOUR_FB_APP_ID', redirect_url: 'http://localhost/openfb/oauthcallback.html', store: window.localStorage});
 
     function login() {
         openFB.login('email',
@@ -51,6 +57,22 @@
             },
             error: errorHandler});
     }
+
+    function getUserId(){
+
+        if (openFB.getAuthResponse())        
+            console.log(JSON.stringify(openFB.getAuthResponse()));
+
+        openFB.api({
+            path: "/me?fields:id",
+            success: function(data){
+                console.log(JSON.stringify(data));
+                document.getElementById("userID").innerHTML += data.id;
+            },
+            error: errorHandler
+        });
+
+    }
 
     function share() {
         openFB.api({

openfb.js

@@ -39,10 +39,29 @@ var openFB = (function () {
      * @param redirectURL - The OAuth redirect URL. Optional. If not provided, we use sensible defaults.
      * @param store - The store used to save the Facebook token. Optional. If not provided, we use sessionStorage.
      */
-    function init(appId, redirectURL, store) {
-        fbAppId = appId;
-        if (redirectURL) oauthRedirectURL = redirectURL;
-        if (store) tokenStore = store;
+    function init(args) {
+        var app_id = args.app_id;
+        var redirect_url = args.redirect_url;
+        var store = args.store;
+        var auth_response = args.auth_response;
+
+        fbAppId = app_id;
+
+        if (redirect_url) {
+            oauthRedirectURL = redirect_url;
+        }
+
+        if (store) {
+            tokenStore = store;
+        }
+
+        // restore a authentication
+        if (auth_response){
+            tokenStore["fbtoken"] = auth_response["access_token"];
+            tokenStore["expires_in"] = auth_response["expires_in"];
+            tokenStore["user_id"] = auth_response["user_id"];
+        }
+
     }
 
     /**
@@ -78,6 +97,7 @@ var openFB = (function () {
             deferredLogin.reject({error: 'user_cancelled', error_description: 'User cancelled login process', error_reason: "user_cancelled"});
             loginWindow.removeEventListener('loadstop', loginWindowLoadStart);
             loginWindow.removeEventListener('exit', loginWindowExit);
+            //loginWindow.close();
             loginWindow = null;
             console.log('done removing listeners');
         }
@@ -128,15 +148,29 @@ var openFB = (function () {
      */
     function oauthCallback(url) {
         // Parse the OAuth data received from Facebook
-        var queryString,
-            obj;
+        var queryString, obj;
 
         loginProcessed = true;
         if (url.indexOf("access_token=") > 0) {
+            obj = {};
             queryString = url.substr(url.indexOf('#') + 1);
-            obj = parseQueryString(queryString);
-            tokenStore['fbtoken'] = obj['access_token'];
-            if (loginSuccessHandler) loginSuccessHandler();
+            obj.auth_response = parseQueryString(queryString);
+            tokenStore['fbtoken'] = obj.auth_response['access_token'];
+            tokenStore['expires_in'] = obj.auth_response['expires_in'];
+
+            api({
+                path: '/me?fields=id',
+                success: function(data) {
+                    obj.auth_response.user_id = data.id;
+                    tokenStore['user_id'] = obj.auth_response.user_id;
+
+                    if (loginSuccessHandler) loginSuccessHandler(obj);
+                },
+                error: function(error){
+                    if (loginErrorHandler) loginErrorHandler(error);
+                }
+            });
+
         } else if (url.indexOf("error=") > 0) {
             queryString = url.substring(url.indexOf('?') + 1, url.indexOf('#'));
             obj = parseQueryString(queryString);
@@ -145,6 +179,23 @@ var openFB = (function () {
             if (loginErrorHandler) loginErrorHandler();
         }
     }
+
+    /**
+     * Get the auth response of the current user logged in. Similar to FB api.
+     **/
+    function getAuthResponse(){
+
+        var auth_response = {};
+
+        if (tokenStore['fbtoken']){
+            auth_response.access_token = tokenStore['fbtoken'];
+            auth_response.expires_in = tokenStore['expires_in'];
+            auth_response.user_id = tokenStore['user_id'];  
+        }
+
+        return auth_response;
+
+    }
 
     /**
      * Application-level logout: we simply discard the token.
@@ -171,7 +222,9 @@ var openFB = (function () {
 
         params['access_token'] = tokenStore['fbtoken'];
 
-        url = 'https://graph.facebook.com' + obj.path + '?' + toQueryString(params);
+        url = 'https://graph.facebook.com' + obj.path;
+        url += (obj.path.indexOf('?') > -1) ? '&' : '?';
+        url += toQueryString(params);
 
         xhr.onreadystatechange = function () {
             if (xhr.readyState === 4) {
@@ -231,6 +284,7 @@ var openFB = (function () {
         login: login,
         logout: logout,
         revokePermissions: revokePermissions,
+        getAuthResponse: getAuthResponse,
         api: api,
         oauthCallback: oauthCallback
     }