I'm working on PhoneGap and have a FBConnect. Using childBrowser and the blog'http://www.pushittolive.com/post/1239874936/facebook-login-on-iphone-phonegap', I have logged in to the App. But could not logout from the app. It's autosigned in for each time I login.
Can any one tell me how to logout from the FBConnect using Childbrowsern PhoneGap?
Try this.
Add this function to ChildBrowserCommand.m
-(void) deleteCookies:(NSMutableArray*)arguments withDict:(NSMutableDictionary*)options{
NSHTTPCookieStorage *cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (NSHTTPCookie *each in [cookieStorage cookies]) {
[cookieStorage deleteCookie:each];
}
}
Add this to Childbrowser.js
ChildBrowser.prototype.LogOut = function()
{
PhoneGap.exec("ChildBrowserCommand.deleteCookies");
}
Add this to FBConnect.js
FBConnect.prototype.Logout = function()
{
window.plugins.childBrowser.LogOut();
}
At your page add this code to logout button on click
function Logout()
{
var fb=FBConnect.install();
fb.Logout();
}
Enjoy.
Best way to tell facebook to logout.
It can Be done by opening below url in child browser:
"https://www.facebook.com/logout.php?next="+your_site_url_registered _on_fb+"&access_token="+accessToken
I have struggled with this problem for ages. You may be logged on facebook but you may not have the access token so the conventional logot won't work.
By the way here's how to force the facebook logout without access token.
<!DOCTYPE html>
<html xmlns:fb="https://www.facebook.com/2008/fbml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Force facebook logout without access token</title>
</head>
<body>
<h3>Please wait while we redirect kick you out from Facebook...</h3>
<div id="status"></div>
<div id="fb-root"></div>
<script type="text/javascript">
function spitInfo(message) {
var infoDiv = document.getElementById("status");
infoDiv.innerHTML += message;
infoDiv.innerHTML += "<br/>";
}
window.fbAsyncInit = function () {
spitInfo("called asyncInit");
FB.init({
appId: '496676837086475', //change the appId to your appId
status: true,
cookie: true,
xfbml: true,
oauth: true
});
function forceLogOut(response) {
if (response.authResponse) {
FB.logout(function (response) {
spitInfo("FB.logout caller - you are logged out");
});
} else {
spitInfo("Already logged out");
}
}
// run once with current status and whenever the status changes
FB.getLoginStatus(forceLogOut);
FB.Event.subscribe('auth.statusChange', forceLogOut);
};
(function () {
var e = document.createElement('script');
e.async = true;
e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
document.getElementById('fb-root').appendChild(e);
}());
</script>
</body>
</html>
Related
So, I'm trying to post on users wall using fb.api and I'm stuck.
Here is my code:
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:fb="http://www.facebook.com/2008/fbml"><head><meta http- equiv="Content-Type" content="text/html; charset=windows-1251">
<title>Example Of Posting To Wall Using Javascript Graph API</title>
<script type="text/javascript" src=""></script>
</head>
<body class="">
//the facebook sdk include
<div id="fb-root" class=" fb_reset">
<script>
var APP_ID="myAppID";
window.fbAsyncInit = initFacebook;
function initFacebook()
{
FB.init({
appId : APP_ID,
status : true, // check login status
cookie : false, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});
FB.getLoginStatus(onFacebookLoginStatus);
};
(function() {
var e = document.createElement('script');
e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
//the login function
function facebookLogin()
{
var loginUrl="http://www.facebook.com/dialog/oauth/?"+
"scope=publish_stream&"+
"client_id="+APP_ID+"&"+
"redirect_uri="+document.location.href+"&"+
"response_type=token";
window.location=loginUrl;
}
//Callback function for FB.login
function onFacebookLoginStatus(response)
{
if (response.status=="connected" && response.authResponse)
{
document.getElementById("txtEcho").innerHTML="Logged in.";
}
else
{
document.getElementById("txtEcho").innerHTML="Not logged in.";
}
}
//post to wall function
function postToWallUsingFBApi()
{
var data=
{
caption: 'This is my wall post example',
message: 'Posted using FB.api',
link: 'http://wwww.permadi.com/blog/',
}
FB.api('/me/feed', 'post', data, onPostToWallCompleted);
}
//the return function after posting to wall
function onPostToWallCompleted(response)
{
if (response)
{
if (response.error)
{
document.getElementById("txtEcho").innerHTML=response.error.message;
}
else
{
if (response.id)
document.getElementById("txtEcho").innerHTML="Posted as post_id "+response.id;
else if (response.post_id)
document.getElementById("txtEcho").innerHTML="Posted as post_id "+response.post_id;
else
document.getElementById("txtEcho").innerHTML="Unknown Error";
}
}
}
</script>
<input id="loginButton" type="button" value="Login To Facebook" onclick="javascript:facebookLogin();">
<input id="postToWallWithFBApiPrompt" type="button" value="Post To Wall Using FB.api" onclick="javascript:postToWallUsingFBApi();">
<div id="txtEcho"><b></b></div>
</body>
</html>
The problem here is that I receive this error code: An active access token must be used to query information about the current user.
I get that even if I use the log in button to get the code. Is there a possibility to add previously obtained access token in function postToWallUsingFBApi(). And can I change the /me/ with user id, so that way the user can be logged out and still post?
If you are doing client-side login that way, you have to extract the access token from the URL yourself afterwards – see https://developers.facebook.com/docs/howtos/login/client-side-without-js-sdk/#step3
Or you just use the FB.login method out of the JS SDK – a little easier, handles all the ecessary stuff “out of the box” – https://developers.facebook.com/docs/howtos/login/getting-started/#step4
I'm implementing facebook authentication (register + login) at my website. Everything works fine, except for the button showing even if I'm logged in. Thanks in advance
<h1 id="welcome">Welcome to my website</h1>
<div id="fb-root"></div>
<span id="fb-login" class="hidden">
<fb:login-button registration-url="http://lemiart.com/register.php"></fb:login-button>
</span>
<script src="https://connect.facebook.net/en_US/all.js#appId=306738122732711&xfbml=1"></script>
<script type="text/javascript">
FB.init({appId: '306738122732711', status: true, cookie: true, xfbml: true});
FB.Event.subscribe('auth.login', function(){
loggedIn();
});
FB.getLoginStatus(function(response){
if (response.session){
// user logged in. Let the auth.login subscription handle this
} else {
loggedOut();
}
});
loggedIn = function() {
FB.api('/me', function(response) {
var welcome = document.getElementById('welcome');
if (welcome) welcome.innerHTML += ' ' + response.id;
document.getElementById('fb-login').className = "hidden";
})
}
loggedOut = function() {
document.getElementById('fb-login').className="";
}
</script>
Your current implementation will always prompt the user to login. What you perhaps need to do is the following:
write a callback function to FB.init, which then checks if the user is logged into your application and then decide if you want to show the fb:login-button.
It would look something like this:
window.fbAsyncInit = function() {
FB.init({
//...
});
FB.getLoginStatus(function(response){
FB.getLoginStatus(function(response){
if (response.session){
// user logged in. Let the auth.login subscription handle this
} else {
loggedOut();
}
});
};
I have the following code but the FB.login gives a FB is not defined javascript error.
What am I missing?
<html>
<body>
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function()
{
FB.init
({
appId : 'XXXX',
status : true,
cookie : true,
xfbml : true
});
};
(function()
{
var e = document.createElement('script');
e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
FB.login(function(response)
{
if(response.session)
{
if(response.perms)
{
alert('yippee');
}
else
{
alert('oh no');
}
}
else
{
alert('login silly');
}
}, {perms:'email,user_birthday'});
</script>
hello
<fb:login-button></fb:login>
</body>
</html>
The function assigned to window.fbAsyncInit is run as soon as the SDK is loaded. Any code that you want to run after the SDK is loaded should be placed within this function and after the call to FB.init. For example, this is where you would test the logged in status of the user or subscribe to any Facebook events in which your application is interested.
Try by keeping other initialization code in between inialization and login function
Or keep FB.login code in $(document).ready
$(document).ready(function(){
FB.login(function(response)
{
if(response.session)
{
if(response.perms)
{
alert('yippee');
}
else
{
alert('oh no');
}
}
else
{
alert('login silly');
}
}, {perms:'email,user_birthday'});
});
You should not call to FB.login before JS-SDK is loaded, window.fbAsyncInit designed especially for this. If you move this call to be within window.fbAsyncInit function you'll be fine but be aware of fact that calling to FB.login opens popup, doing this without user interaction will be probably blocked by most browsers. If you want to use FB.login to handle login, you must do it on click or sumbit events...
BTW, you already have fb:login-button which is doing login once user clicks on it.
You can also get this error if you try to launch the facebook example code on your machine (e.g. copying the code in a .html file and trying to open it in your browser). You will need to upload this to your server and run it from there.
I've developed a simple website using facebook connect, and it has been working fine for the last month or so. Underneath the fb:login-button code is a fb:facepile. It has worked as expected until today, when instead of showing friend's pictures it displays the facebook homepage. Here is a screenshot of the problem http://i.stack.imgur.com/nZsbq.png
Here is the relevant code. It worked at one time, so I'm really confused what happened to cause this weird error. Any help would be greatly appreciated.
<div id="fb-root"></div>
<script type="text/javascript">
window.fbAsyncInit = function() {
FB.init({appId: '<?php echo $appkey; ?>', status: true, cookie: true, xfbml: true});
/* All the events registered */
FB.Event.subscribe('auth.login', function(response) {
// do something with response
login();
});
FB.Event.subscribe('auth.logout', function(response) {
// do something with response
logout();
});
};
(function() {
var e = document.createElement('script');
e.type = 'text/javascript';
e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
function login(){
document.location.href = "<?php echo $base_url.'/facebook/'; ?>";
}
function logout(){
document.location.href = "<?php echo $base_url.'/logout/'; ?>";
}
</script>
I cannot copy the two XFBML tags that follow the javascript. They are fb:login-button and fb:facepile
It is a reported bug but it seems that nobody at Facebook care about it. Very strange and disapointing for such big web company.
http://forum.developers.facebook.net/viewtopic.php?id=90734
You can report this bug by upvoting at the follwoing webpage :
http://bugs.developers.facebook.net/show_bug.cgi?id=15490
It looks like <fb:facepile></fb:facepile> is finally working again. The bug was marked as resolved on the Facebook bugtracker and is currently working as expected on my development server.
I'm trying to use the new Facebook Graph API on my website. This is what I have:
Somewhere on the page:
<fb:login-button autologoutlink="true" perms="email,user_birthday,status_update,publish_stream"></fb:login-button>
Right after the tag:
<div id="fb-root">
</div>
<script type="text/javascript">
window.fbAsyncInit = function () {
FB.init({ appId: '<%= ConfigurationManager.AppSettings["FBAppId"] %>', status: true, cookie: true, xfbml: true });
/* All the events registered */
FB.Event.subscribe('auth.login', function (response) {
// do something with response
alert("login success");
});
FB.Event.subscribe('auth.logout', function (response) {
// do something with response
alert("logout success");
});
FB.getLoginStatus(function (response) {
if (response.session) {
// logged in and connected user, someone you know
alert("login success");
}
});
};
(function () {
var e = document.createElement('script');
e.type = 'text/javascript';
e.src = document.location.protocol +
'//connect.facebook.net/en_US/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
} ());
</script>
but when I click on the generated login button, nothing happens.
In addition, I'm getting
FB.getLoginStatus() called before calling FB.init().
in Firebug console.
Any ideas?
I can't believe it, I was referencing a non existing key in the Web.config hence FB.init was failing silently.
It works as expected now.
To be clearer I wasn't passing the appId to FB.init, once I did, it worked.
Had the same issue, here is the solution that worked for me. Just put the following in your head section or in other words, add the app_id to the source of the facebook js.
<script src="//connect.facebook.net/en_US/all.js&appId=xxxxxxxxxxxxxxx" type="text/javascript"></script>
In my case, the problem went away after I disabled the XFBML functionality (i.e. setting the xfbml key to false, removing the fb: namespace and the #xfbml=1 fragment in <script src="…">). Good that I didn’t need it anyway.
YMMV, there are several other valid reasons why this error message can appear.