I am working on an application which uses FB login. For login from faceBook I am using FBGraph and it works fine if users have disabled secure login in their account, but if user enables the secure login then it gives following message..
Here is my code i used for login
self.fbGraph = [[FbGraph alloc] initWithFbClientID:client_id];
[fbGraph authenticateUserWithCallbackObject:self andSelector:#selector(fbGraphCallback:)
andExtendedPermissions:#"user_photos,user_videos,publish_stream,offline_access,user_checkins,friends_checkins"];
EDIT:
From suggestions from current answers, I have added following code in my FBGraph.m But with this code i am getting token nil.
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
NSLog(#"\n\n\nrequest.URL.relativeString = %#\n\n\n",request.URL.relativeString);
if([request.URL.relativeString hasPrefix:#"https://www.facebook.com/connect/login_success.html" ]||[request.URL.relativeString hasPrefix:#"http://www.facebook.com/connect/login_success.html" ]||[request.URL.relativeString hasPrefix:#"http://m.facebook.com/connect/login_success.html" ])
{
[self.webView stopLoading];
[[self.webView superview] removeFromSuperview];
//tell our callback function that we're done logging in :)
if ( (callbackObject != nil) && (callbackSelector != nil) ) {
[callbackObject performSelector:callbackSelector];
}
return NO;
}
return YES;
}
I have also changed
self.redirectUri = #"http://www.facebook.com/connect/login_success.html";
To
self.redirectUri = #"http://m.facebook.com/connect/login_success.html";
But still no success....
Please tell me the solution for FB Login.....
Thanks...........
You should use Facebook's official SDK.
Download it from here - Facebook SDK
Facebook says
The Facebook SDK 3.8 for iOS is a minor update that adds XCode 5 and
iOS 7 support, stability fixes, automatic permissions refresh and the
ability to specify batch request parameters to (FBRequestConnection).
Change url :
self.redirectUri = #"http://www.facebook.com/connect/login_success.html";
FBGraph.m to
self.redirectUri = #"https://m.facebook.com/connect/login_success.html";
and check.
This is not an error , but just a security warning from Facebook. And I have resolved it in my application to escape from this.
Check the below method in FbGraph.m file
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
if([request.URL.relativeString hasPrefix:#"https://www.facebook.com/connect/login_success.html" ])
self.webView.hidden=TRUE;
return YES;
}
check if it's currently present in file. If not then go with it.
We have:
(1) Facebook API-based web application with Facebook OAuth functionality (“the FB web app”)
(2) UIWebView-based browser on iPad (“the Browser”)
Our objective is to open the Facebook Login page to sign in to the FB web app (1) inside the UIWebView-based Browser (2) on iPad.
There is a somewhat similar issue here:
http://facebook.stackoverflow.com/questions/11337285/no-longer-able-to-login-to-ios-app-via-oauth-the-page-requested-was-not-found
However, the issue of that question happens after the user enters login and password into the Facebook form. Our problem is that we cannot get the Facebook login form displayed in the first place. Changing the app type to from “Web” to “Native/Desktop”, as suggested in that question, did not help.
Steps:
1. Open our web page (simple HTML page) with this UIWebView Browser
2. Click on “FB web app” launch button on this page
3. OnClick JavaScript tries to initiate OAuth, which should open the login screen of Facebook to sign in to the FB web app
Current outcome (issue):
On iOS 5.+ and iOS 6.+ devices
- Our web page stays unchanged
- Facebook login page is NOT shown (our web page is still displayed)
On iOS 4.3 (works as expected):
- the Facebook login page is opened in the same UIWebView object of the Browser (replaces our web page)
Expected outcome:
- Facebook login page is displayed, and the user can enter Facebook login & password
- Works on iOS 5.+ and iOS 6.+ if launched in Safari browser on iPad. Facebook login page is opened in a separate tab (in contrast, there are no separate tabs in UIWebView)
Question: How can I get UIWebView to open Facebook login page in response to the OAuth request on iOS 5+ and iOS 6+?
More technical details:
We log different NSURLRequest fields from within
-(BOOL)webView(UIWebView*)webView shouldStartLoadWithRequest(NSURLREquest*)request navigationType:…
And we notice some difference in logs for “correct” and “incorrect” behaviors. Here how execution flows look for me:
Firstly, I press “FB Web App” launch button to initiate OAuth, then some cases go
iOS 4.3, “correct”
request to www.facebook.com/dialog/oauth?...
request to fbwebapp.com
request to m.facebook.com/login.php?....
--here facebook login appears
iOS 5.0, “incorrect1”
request to www.facebook.com/dialog/oauth?...
request to fbwebapp.com
request to m.facebook.com/login.php?...
Then it may be
--a lot of m.facebook.com/login.php?...with next… in parameters
followed by sqlite error
--right now I see “Sorry, something went wrong” page from facebook (it’s a first time at all I encounter it)
iOS 6.0 “incorrect2”
request to www.facebook.com/dialog/oauth?...
request to fbwebapp.com
-(void)webView:(UIWebView*)webView didFailLoadWithError:(NSError*)error is invoked with error code -999
You can see that behavior definitely depends on iOS version. But common case is that error happens on the step of obtaining m.facebook.com/login.php.. URL. But that’s all that we can detect.
We’re banging our heads against that wall for the whole day looking for solutions. Hopelessly.
Can you help us get the Facebook Login page opened in the UIWebView in response to OAuth?
just use : this code
if (![FBSDKAccessToken currentAccessToken])
{
FBSDKLoginManager *manager = [[FBSDKLoginManager alloc]init];
manager.loginBehavior = FBSDKLoginBehaviorWeb;
[manager logInWithReadPermissions:#[#"public_profile", #"email", #"user_friends"] handler:
^(FBSDKLoginManagerLoginResult *result, NSError *error) {
NSLog(#"result.token: %#",result.token.tokenString);
NSLog(#"%#",result.token.userID);
NSLog(#"%hhd",result.isCancelled);
}];
}
// here manager.loginBehavior = FBSDKLoginBehaviorWeb; is all you need to open facebook in UIWebview
Did it!
It kinda of a hack, but the js facebook sdk login on UiWebView at iOS 6 finally works.
How it could be done? It is a pure JS + Facebook JS SDK + UIWebView Delegate handling functions solution.
JS - First step)
a login button (to connect with facebook) calls this function example, that will trigger Face JS login/oauth dialogs:
function loginWithFacebookClick(){
FB.login(function(response){
//normal browsers callback
});
}
JS - Second step)
add a authResponseChange listener every time user loads the webpage ( after FB.init() ) to catch user's connected status:
FB.Event.subscribe('auth.authResponse.Change', function(response){
//UIWebView login 'callback' handler
var auth = response.authResponse;
if(auth.status == 'connected'){
//user is connected with facebook! just log him at your webapp
}
});
AND with app's UIWebView delegate functions you can handler facebook oauth responses
Objective C - Third step)
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
NSString *url = [[request URL] absoluteString];
//when user status == connected (has a access_token at facebook oauth response)
if([url hasPrefix:#"https://m.facebook.com/dialog/oauth"] && [url rangeOfString:#"access_token="].location != NSNotFound)
{
[self backToLastPage];
return NO;
}
return YES;
}
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
NSString *url = [[webView.request URL] absoluteString];
if([url hasPrefix:#"https://m.facebook.com/dialog/oauth"])
{
NSString *bodyHTML = [webView stringByEvaluatingJavaScriptFromString:#"document.body.innerHTML"];
//Facebook oauth response dead end: is a blank body and a head with a script that does
//nothing. But if you got back to your last page, the handler of authResponseChange
//will catch a connected status if user did his login and auth app
if([bodyHTML isEqualToString:#""])
{
[self backToLastPage];
}
}
}
So, when 'redirect' user to the last loaded page, the second step is going to handler user action at facebook login dialogs.
If I got too fast with this answer, please ask me!
Hope it helps.
In case anyone is googling, here's what worked for me:
-(BOOL) webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)inType {
if ([request.URL.absoluteString containsString:#"m.facebook.com"]) {
if ([request.URL.absoluteString rangeOfString:#"back"].location == 0) {
[self.popUp removeFromSuperview];
self.popUp = nil;
return NO;
}
if (self.popUp) {
return YES;
}
UIWebView *wv = [self popUpWebView];
[wv loadRequest:request];
return NO;
}
return YES;
}
- (UIWebView *) popUpWebView {
toolbar height
UIWebView *webView = [[UIWebView alloc]
initWithFrame:CGRectMake(0, 0, (float)self.view.bounds.size.width,
(float)self.view.bounds.size.height)];
webView.scalesPageToFit = YES;
webView.delegate = self;
// Add to windows array and make active window
self.popUp = webView;
[self.view addSubview:webView];
return webView;
}
- (void)webViewDidFinishLoad:(UIWebView *)webView {
if (self.popUp) {
NSError *error = nil;
NSString *jsFromFile = #"window.close=function(){window.location.assign('back://' + window.location);};";
__unused NSString *jsOverrides = [webView
stringByEvaluatingJavaScriptFromString:jsFromFile];
JSContext *openerContext = [self.webView
valueForKeyPath:#"documentView.webView.mainFrame.javaScriptContext"];
JSContext *popupContext = [webView
valueForKeyPath:#"documentView.webView.mainFrame.javaScriptContext"];
popupContext[#"window"][#"opener"] = openerContext[#"window"];
}
//this is the secret sauce
if (webView == self.popUp
&& [webView.request.URL.absoluteString containsString:#"m.facebook.com"]
&& [[webView stringByEvaluatingJavaScriptFromString:#"document.body.innerHTML"] isEqualToString:#""]) {
[webView stringByEvaluatingJavaScriptFromString:#"eval(document.getElementsByTagName('script')[0].text)"];
}
}
I snagged a bunch of this implementation from here.
Depending on your web implementation, there will likely be one extra step. The Facebook script actually executes a window.close() then a window.open() then a window.close(). For me this was causing problems because on the web side, after this login is complete, my window (i.e. for the webView that I want the user to log in to) was getting a window.close() call, coming from the Facebook SDK. I'm assuming this is because the Facebook SDK expects that window.open() call to open a new window that it will close.
Since we didn't override the functionality of window.open(), calling window.open() won't do anything, and the Facebook SDK will attempt to close your window. This could cause all kind of problems, but for me since I'm using Parse, window.localStorage was set to null so I was getting all kinds of errors.
If something like this is happening for you, you have two options to fix it:
If you have control of the web code, and your down for a small hack, throw this in window.close=function(){}
If you don't have control of the web code, you can either add an override to window.close for the main webView like we did for the popUp webView, or override the window.open function to open another popUp (which is described in more detail here)
Use the FBDialog class to prompt the user to login. This uses a webview inside of the app, therefore on successful login the user will be logged in inside of any UIWebView:
NSString *kRedirectURL = #"fbconnect://success";
NSString *kSDK = #"ios" ;
NSString *kLogin = #"oauth";
NSString *kDialogBaseURL = #"https://m.facebook.com/dialog/";
NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
AE_FACEBOOK_APPID, #"client_id",
#"user_agent", #"type",
kRedirectURL, #"redirect_uri",
#"touch", #"display",
kSDK, #"sdk",
nil];
NSString *loginDialogURL = [kDialogBaseURL stringByAppendingString:kLogin];
FBLoginDialog* loginDialog = [[FBLoginDialog alloc] initWithURL:loginDialogURL
loginParams:params
delegate:self];
[loginDialog show];
Then make your class adhere to the FBDialogDelegate protocol, and add this function to your class:
-(void)fbDialogLogin: (NSString *)token expirationDate:(NSDate *)expirationDate{
// Store the token and expiration date into the FB SDK
self.facebook.accessToken = token;
self.facebook.expirationDate = expirationDate;
// Then persist these so the SDK picks them up on next load
NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:self.facebook.accessToken forKey:ACCESS_TOKEN_KEY];
[defaults setObject:self.facebook.expirationDate forKey:EXPIRATION_DATE_KEY];
[defaults synchronize];
}
HTH!
How to facebook login in UIWebView.
Objective-c
Use taylorstine's answer.
He saved my day. Thank you taylorstine
But I'm using Swift 3. so I just converted code below from taylorstine's answer.
Swift 3.
func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool {
if let _ = request.url?.absoluteString.range(of: "m.facebook.com" ) {
if let _ = request.url?.absoluteString.range(of: "back"){
self.popUp?.removeFromSuperview()
self.popUp = nil
return false
}
if let _ = self.popUp {
return true
}
let wv = popUpWebView()
wv.loadRequest(request)
return false
}
return true
}
func popUpWebView() -> UIWebView {
let webView = UIWebView(frame: self.view.frame)
webView.delegate = self
self.popUp = webView
self.view.addSubview(webView)
return webView
}
func webViewDidFinishLoad(_ webView: UIWebView) {
if let _ = self.popUp {
let jsFromFile = "window.close=function(){window.location.assign('back://' + window.location);};"
let _ = webView.stringByEvaluatingJavaScript(from: jsFromFile)
let openerContext = self.webView.value(forKeyPath: "documentView.webView.mainFrame.javaScriptContext") as! JSContext
let popupContext = webView.value(forKeyPath: "documentView.webView.mainFrame.javaScriptContext") as! JSContext
popupContext.setObject("opener", forKeyedSubscript: "window" as (NSCopying & NSObjectProtocol)!)
popupContext.setObject(openerContext.objectForKeyedSubscript("window"), forKeyedSubscript: "opener" as (NSCopying & NSObjectProtocol)!)
}
if webView == self.popUp
&& (webView.request?.url?.absoluteString.range(of:"m.facebook.com") != nil)
&& webView.stringByEvaluatingJavaScript(from: "document.body.innerHTML") == "" {
webView.stringByEvaluatingJavaScript(from: "eval(document.getElementsByTagName('script')[0].text)")
}
}
I am using follwing function to open FBConnect login screen but unfortunate it is not appearing on screen, whenever I am clicking on Login button after animating of Spinner blank screen is coming.
if(appDelegate.session == nil) {
appDelegate.session = [FBSession sessionForApplication:API_KEY secret:SECRET_KEY delegate:self];
}
if(loginButton == nil) {
self.loginButton = [[[FBLoginButton alloc] init] autorelease];
loginButton.frame = CGRectMake(0, 0, 100, 50);
[self.view addSubview:loginButton];
}
I have given right value of API_KEY and SECRET_KEY from developer account. Please look attached image.
Use FBConnect only if it uses Facebook GraphApi, else other api's wont be working.
Why are you using old FB Sdk, use the new iOS SDK 3.0, it very simple to use. Also FB has provided lots of sample app. Get the new sdk here.
And also new Graph Api's doesn't require secret key.
I have a popular medicine app often used by med students and residents at the bedside. I incorporated the new FB SKD into my last updated which, when opened for the first time (and subsequently if not used for a few days), opens the native FB app then redirects to my app. Many customers have complained because the info within the app often needs to be looked up quickly (crashing patient).
Is it possible to set up my app so the user needs to click on a button within the app before connecting to FB? Thanks!
I think you will need to make change to authorizeWithFBAppAuth method in facebook.m file of the SDK.
This SO has a suggestion for you.
When you download the FB SDK you get a sample project. Compile and run it, and you should see a toggle button that allows user to login/logout. You've got the FB official images in that project, and the code behind it is pretty simple:
/**
* Called on a login/logout button click.
*/
- (void)fbButtonClick:(id)sender {
if (fbButton.isLoggedIn) {
[self logout];
} else {
[self login];
}
}
/**
* Show the authorization dialog.
*/
- (void)login {
[_facebook authorize:nil delegate:self];
NSLog(#"Sas");
}
/**
* Invalidate the access token and clear the cookie.
*/
- (void)logout {
[_facebook logout:self];
}
You should also change the button's state in the FBAuth delegate methods (which you've already implemented) by calling a method similar to this one:
- (void)updateFbButtonAccordingToSessionStatus {
//Check if session is valid and update button accordingly
if ([self.facebook isSessionValid] == NO ) {
fbButton.isLoggedIn = NO;
[fbButton updateImage];
}
else {
fbButton.isLoggedIn = YES;
[fbButton updateImage];
}
}
Hope this helps.
I have an app that I want to be able to connect to Facebook and post to the user's wall. I have the following code:
- (void)viewDidLoad {
static NSString* kApiKey = #"PRIVATE";
static NSString* kApiSecret = #"PRIVATE";
_session = [[FBSession sessionForApplication:kApiKey secret:kApiSecret delegate:self] retain];
// Load a previous session from disk if available. Note this will call session:didLogin if a valid session exists.
[_session resume];
// Set these values from your application page on http://www.facebook.com/developers
// Keep in mind that this method is not as secure as using the sessionForApplication:getSessionProxy:delegate method!
// These values are from a dummy facebook app I made called MyGrades - feel free to play around!
[super viewDidLoad];
}
- (IBAction)postGradesTapped:(id)sender {
_posting = YES;
// If we're not logged in, log in first...
if (![_session isConnected]) {
self.loginDialog = nil;
_loginDialog = [[FBLoginDialog alloc] init];
[_loginDialog show];
}
// If we have a session and a name, post to the wall!
else if (_facebookName != nil) {
[self postToWall];
}
// Otherwise, we don't have a name yet, just wait for that to come through.
}
The problem I have is that when the user clicks the button associated with the IBAction it will pop up the login dialog, but then the window disappears without ever pulling up the Publish Story to Wall dialog. How do I get it to login and then pull up the Publish Story to Wall?
I think you may need to use FBPermissionDialog to ask for "post to wall" permission first (I'm not sure what the exact string is; it might be in the examples).
Also note that "FBSession" is the old "iPhone" SDK (last updated in April); there's a newer "iOS" SDK at http://github.com/facebook/facebook-ios-sdk
I once encountered this behavior when my Security Key was wrong (in the new API you don't need it, but if you're based on old API it still requires it).
Make sure you use "App Id" and "App Secret" from the Facebook app control page. (And not "API Key")
Good luck!