ios - ¿Se aceptan cookies en UIWebView?

objective-c iphone

Question

Tengo que preguntarte por ti.

1: Estoy usando UIWebView s en mi aplicación para iPhone. Los usuarios no podrán agregar comentarios en las noticias. Pero, para comentar tienen que iniciar sesión.

Si no, ¿cómo puedo aceptar las cookies en UIWebView s?

2: ¿Las cookies creadas en UIWebView disponibles en otras UIWebView en otra Vista?

Ej: Tengo mi LoginViewController , con un UIWebView incorporado, donde mi usuario puede iniciar sesión / cerrar sesión. Si inician sesión en esta vista, la cookie seguirá estando disponible en el CommentViewController ?

Si no, ¿cómo puedo hacer esto posible?

Gracias por adelantado !

Answer 1

Swift 3 versión clara

func saveCookies() {
    guard let cookies = HTTPCookieStorage.shared.cookies else {
        return
    }
    let array = cookies.flatMap { (cookie) -> [HTTPCookiePropertyKey: Any]? in
        cookie.properties
    }
    UserDefaults.standard.set(array, forKey: "cookies")
    UserDefaults.standard.synchronize()
}

func loadCookies() {
    guard let cookies = UserDefaults.standard.value(forKey: "cookies") as? [[HTTPCookiePropertyKey: Any]] else {
        return
    }
    cookies.forEach { (cookie) in
        guard let cookie = HTTPCookie.init(properties: cookie) else {
            return
        }
        HTTPCookieStorage.shared.setCookie(cookie)
    }
}

Answer 2

Aquí hay una versión Swift más limpia y segura:

private func loadCookies() {
    guard let cookies = NSUserDefaults.standardUserDefaults().valueForKey("cookies") as? [[String: AnyObject]] else {
        return
    }

    for cookieProperties in cookies {
        if let cookie = NSHTTPCookie(properties: cookieProperties) {
            NSHTTPCookieStorage.sharedHTTPCookieStorage().setCookie(cookie)
        }
    }
}

private func saveCookies() {
    guard let cookies = NSHTTPCookieStorage.sharedHTTPCookieStorage().cookies else {
        return
    }

    var array = [[String: AnyObject]]()
    for cookie in cookies {
        if let properties = cookie.properties {
            array.append(properties)
        }
    }
    NSUserDefaults.standardUserDefaults().setValue(array, forKey: "cookies")
    NSUserDefaults.standardUserDefaults().synchronize()
}

Answer 3

De todas las otras excelentes respuestas a esta pregunta, compilé una extensión útil en UserDefaults que acorta el código necesario.

UserDefaults Extension para Swift 3

extension UserDefaults {

    /// A dictionary of properties representing a cookie.
    typealias CookieProperties = [HTTPCookiePropertyKey: Any]

    /// The `UserDefaults` key for accessing cookies.
    private static let cookieKey = "cookies"

    /// Saves all cookies currently in the shared `HTTPCookieStorage` to the shared `UserDefaults`.
    func saveCookies() {
        guard let cookies = HTTPCookieStorage.shared.cookies else {
            return
        }
        let cookiePropertiesArray = cookies.flatMap { $0.properties }
        set(cookiePropertiesArray, forKey: UserDefaults.cookieKey)
        synchronize()
    }

    /// Loads all cookies stored in the shared `UserDefaults` and adds them to the current shared `HTTPCookieStorage`.
    func loadCoookies() {
        let cookiePropertiesArray = value(forKey: UserDefaults.cookieKey) as? [CookieProperties]
        cookiePropertiesArray?.forEach {
            if let cookie = HTTPCookie(properties: $0) {
                HTTPCookieStorage.shared.setCookie(cookie)
            }
        }
    }

}

Puede agregar este código a un archivo separado UserDefaults+Cookies.swift (por ejemplo) y luego llamar a los métodos desde su AppDelegate como lo describe Brian Shamblen en su respuesta original :

Llamadas desde AppDelegate

func applicationDidBecomeActive(_ application: UIApplication) {
    UserDefaults.standard.loadCoookies()
}

func applicationWillEnterForeground(_ application: UIApplication) {
    UserDefaults.standard.loadCoookies()
}

func applicationDidEnterBackground(_ application: UIApplication) {
    UserDefaults.standard.saveCookies()
}

func applicationWillTerminate(_ application: UIApplication) {
    UserDefaults.standard.saveCookies()
}

Answer 4

UIWebView almacenará automáticamente las cookies en la [NSHTTPCookieStorage sharedHTTPCookieStorage] , y debería estar disponible en todos los demás UIWebView s dentro de su aplicación, durante el mismo lanzamiento de la aplicación. Sin embargo, la clase UIWebView no almacena automáticamente cookies para las páginas que se cargan entre los lanzamientos de aplicaciones. Debe almacenar las cookies de forma manual cuando la aplicación se mueve a segundo plano y volver a cargar los valores cuando la aplicación vuelva a ponerse en primer plano.

Coloque el siguiente código en su clase AppDelegate:

- (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];
}

Answer 5

Expandiendo las otras respuestas:

Dado que NSHTTPCookieStorage cookies pueden archivarse utilizando NSKeyedArchiver , no es necesario que extraiga usted mismo cada propiedad de cookie. Además, querrá eliminar la propiedad de la cookie NSUserDefaults , cuando no haya cookies para almacenar.

Para que pueda simplificar su almacenamiento / carga de cookies en esta extensión:

static NSString *const kCookiesKey = @"cookies";

@implementation NSHTTPCookieStorage (Persistence)

- (void)saveToUserDefaults
{
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
    if (self.cookies != nil && self.cookies.count > 0) {
        NSData *cookieData = [NSKeyedArchiver archivedDataWithRootObject:self.cookies];
        [userDefaults setObject:cookieData forKey:kCookiesKey];
    } else {
        [userDefaults removeObjectForKey:kCookiesKey];
    }
    [userDefaults synchronize];
}

- (void)loadFromUserDefaults
{
    NSData *cookieData = [[NSUserDefaults standardUserDefaults] objectForKey:kCookiesKey];
    if (cookieData != nil) {
        NSArray *cookies = [NSKeyedUnarchiver unarchiveObjectWithData:cookieData];
        for (NSHTTPCookie *cookie in cookies) {
            [self setCookie:cookie];
        }
    }
}

@end

Luego solo use [[NSHTTPCookieStorage sharedHTTPCookieStorage] loadFromUserDefaults]; y [[NSHTTPCookieStorage sharedHTTPCookieStorage] saveToUserDefaults]; en su AppDelegate como se mencionó anteriormente.

Answer 6

Swift 3

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any] ? ) - > Bool {
    loadHTTPCookies()

    return true
}

func applicationDidEnterBackground(_ application: UIApplication) {
    saveCookies()
}

func applicationWillEnterForeground(_ application: UIApplication) {
    loadHTTPCookies()
}

func applicationWillTerminate(_ application: UIApplication) {
    saveCookies()
}

func loadHTTPCookies() {

    if let cookieDict = UserDefaults.standard.value(forKey: "cookieArray") as? NSMutableArray {

        for c in cookieDict {

            let cookies = UserDefaults.standard.value(forKey: c as!String) as!NSDictionary
            let cookie = HTTPCookie(properties: cookies as![HTTPCookiePropertyKey: Any])

            HTTPCookieStorage.shared.setCookie(cookie!)
        }
    }
}

func saveCookies() {

    let cookieArray = NSMutableArray()
    if let savedC = HTTPCookieStorage.shared.cookies {
        for c: HTTPCookie in savedC {

            let cookieProps = NSMutableDictionary()
            cookieArray.add(c.name)
            cookieProps.setValue(c.name, forKey: HTTPCookiePropertyKey.name.rawValue)
            cookieProps.setValue(c.value, forKey: HTTPCookiePropertyKey.value.rawValue)
            cookieProps.setValue(c.domain, forKey: HTTPCookiePropertyKey.domain.rawValue)
            cookieProps.setValue(c.path, forKey: HTTPCookiePropertyKey.path.rawValue)
            cookieProps.setValue(c.version, forKey: HTTPCookiePropertyKey.version.rawValue)
            cookieProps.setValue(NSDate().addingTimeInterval(2629743), forKey: HTTPCookiePropertyKey.expires.rawValue)

            UserDefaults.standard.setValue(cookieProps, forKey: c.name)
            UserDefaults.standard.synchronize()
        }
    }

    UserDefaults.standard.setValue(cookieArray, forKey: "cookieArray")
}

Answer 7

Swift 4.2

Por favor agregue esta extensión a su controlador

extension UserDefaults {

    /// A dictionary of properties representing a cookie.
    typealias CookieProperties = [HTTPCookiePropertyKey: Any]

    /// The `UserDefaults` key for accessing cookies.
    private static let cookieKey = "cookies"

    /// Saves all cookies currently in the shared `HTTPCookieStorage` to the shared `UserDefaults`.
    func saveCookies() {
        guard let cookies = HTTPCookieStorage.shared.cookies else {
            return
        }
        let cookiePropertiesArray = cookies.compactMap { $0.properties }
        set(cookiePropertiesArray, forKey: UserDefaults.cookieKey)
        synchronize()
    }

    /// Loads all cookies stored in the shared `UserDefaults` and adds them to the current shared `HTTPCookieStorage`.
    func loadCoookies() {
        let cookiePropertiesArray = value(forKey: UserDefaults.cookieKey) as? [CookieProperties]
        cookiePropertiesArray?.forEach {
            if let cookie = HTTPCookie(properties: $0) {
                HTTPCookieStorage.shared.setCookie(cookie)
            }
        }
    }

}

Y reemplazar en AppDelegate este código de líneas:

    func applicationDidEnterBackground(_ application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(_ application: UIApplication) {
        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(_ application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(_ application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }

con este código de líneas:

    func applicationDidBecomeActive(_ application: UIApplication) {
        UserDefaults.standard.loadCoookies()
    }

    func applicationWillEnterForeground(_ application: UIApplication) {
        UserDefaults.standard.loadCoookies()
    }

    func applicationDidEnterBackground(_ application: UIApplication) {
        UserDefaults.standard.saveCookies()
    }

    func applicationWillTerminate(_ application: UIApplication) {
        UserDefaults.standard.saveCookies()
    }

Answer 8

Versión Swift 2.0

func loadCookies() {

    let cookieDict : NSMutableArray? = NSUserDefaults.standardUserDefaults().valueForKey("cookieArray") as? NSMutableArray

    if cookieDict != nil {

        for var c in cookieDict! {

            let cookies = NSUserDefaults.standardUserDefaults().valueForKey(c as! String) as! NSDictionary
            let cookie = NSHTTPCookie(properties: cookies as! [String : AnyObject])

            NSHTTPCookieStorage.sharedHTTPCookieStorage().setCookie(cookie!)
        }
    }
}

func saveCookies() {

    var cookieArray = NSMutableArray()
    let savedC = NSHTTPCookieStorage.sharedHTTPCookieStorage().cookies

    for var c : NSHTTPCookie in savedC! {

        var cookieProps = NSMutableDictionary()
        cookieArray.addObject(c.name)
        cookieProps.setValue(c.name, forKey: NSHTTPCookieName)
        cookieProps.setValue(c.value, forKey: NSHTTPCookieValue)
        cookieProps.setValue(c.domain, forKey: NSHTTPCookieDomain)
        cookieProps.setValue(c.path, forKey: NSHTTPCookiePath)
        cookieProps.setValue(c.version, forKey: NSHTTPCookieVersion)
        cookieProps.setValue(NSDate().dateByAddingTimeInterval(2629743), forKey: NSHTTPCookieExpires)

        NSUserDefaults.standardUserDefaults().setValue(cookieProps, forKey: c.name)
        NSUserDefaults.standardUserDefaults().synchronize()

    }

    NSUserDefaults.standardUserDefaults().setValue(cookieArray, forKey: "cookieArray")
}