ios - Are cookies in UIWebView accepted?

Question

I have to question for you.

1 : I'm using UIWebViews in my iPhone App. I wan't the users be able to add comments in the news. But, to comment they have to log-in.

If not, how can I accept cookies in UIWebViews ?

2 : Are the cookies created in on UIWebView available in others UIWebView in an other View ?

Ex : I have my LoginViewController, with an embedded UIWebView, where my user can login/logout. If they log-in in this view, the cookie will be still available in the CommentViewController ?

If not, how can I make this possible ?

Thanks in advance !

Answer 1

The UIWebView will automatically store the cookies in the [NSHTTPCookieStorage sharedHTTPCookieStorage] collection, and should be available in all other UIWebViews within your app, during the same app launch. However the UIWebView class does not automatically store cookies for the pages that are loaded between app launches. You need to manually store cookies when the app is moved into the background and reload the values when the app is brought back into the foreground.

Place the following code in your AppDelegate class:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    //Other existing code

    [self loadHTTPCookies];
    return YES;
}

- (void)applicationDidEnterBackground:(UIApplication *)application
{
    //Other existing code

    [self saveHTTPCookies];
}

- (void)applicationWillEnterForeground:(UIApplication *)application
{
    [self loadHTTPCookies];
}

- (void)applicationWillTerminate:(UIApplication *)application
{
    //Other existing code
    [self saveHTTPCookies];
}

-(void)loadHTTPCookies
{
    NSMutableArray* cookieDictionary = [[NSUserDefaults standardUserDefaults] valueForKey:@"cookieArray"];

    for (int i=0; i < cookieDictionary.count; i++)
    {
        NSMutableDictionary* cookieDictionary1 = [[NSUserDefaults standardUserDefaults] valueForKey:[cookieDictionary objectAtIndex:i]];
        NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:cookieDictionary1];
        [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];
    }
}

-(void)saveHTTPCookies
{
    NSMutableArray *cookieArray = [[NSMutableArray alloc] init];
    for (NSHTTPCookie *cookie in [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]) {
        [cookieArray addObject:cookie.name];
        NSMutableDictionary *cookieProperties = [NSMutableDictionary dictionary];
        [cookieProperties setObject:cookie.name forKey:NSHTTPCookieName];
        [cookieProperties setObject:cookie.value forKey:NSHTTPCookieValue];
        [cookieProperties setObject:cookie.domain forKey:NSHTTPCookieDomain];
        [cookieProperties setObject:cookie.path forKey:NSHTTPCookiePath];
        [cookieProperties setObject:[NSNumber numberWithUnsignedInteger:cookie.version] forKey:NSHTTPCookieVersion];
        [cookieProperties setObject:[[NSDate date] dateByAddingTimeInterval:2629743] forKey:NSHTTPCookieExpires];

        [[NSUserDefaults standardUserDefaults] setValue:cookieProperties forKey:cookie.name];
        [[NSUserDefaults standardUserDefaults] synchronize];

    }

    [[NSUserDefaults standardUserDefaults] setValue:cookieArray forKey:@"cookieArray"];
    [[NSUserDefaults standardUserDefaults] synchronize];
}