How to manage cookies with UIWebView in Swift

Question

What about have a topic where people can easily see how to manage cookies in a webview using the new language Swift? If you check in internet you won\'t find anything intere

Answer 1

swift 2.0

let storage = NSHTTPCookieStorage.sharedHTTPCookieStorage()
for cookie in storage.cookies! {
 storage.deleteCookie(cookie)
}
NSUserDefaults.standardUserDefaults().synchronize()

Answer 2

Thanks for the swift "translation"... Just needed to change the deletion to as! to force downcast:

var storage : NSHTTPCookieStorage = NSHTTPCookieStorage.sharedHTTPCookieStorage()
for cookie in storage.cookies  as! [NSHTTPCookie]
{
    storage.deleteCookie(cookie)
}
NSUserDefaults.standardUserDefaults()

Answer 3

Here is the complete answer with how to capture cookies with UIWebView's delegate function:

func webViewDidFinishLoad(_ webView: UIWebView) {
    if let cookies = HTTPCookieStorage.shared.cookies {
        for cookie in cookies {
            print("cookie= \(cookie)")
        }
    }
}

Keep in mind that cookies will saved as default and this delegate function calls every movement that finished with webview load. (It's also updated with Swift 3.0.1)

Answer 4

swift 3 clear version

Save cookies

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()
}

Load cookies :

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)
    }
}

You can call these functions like the following code

func webViewDidStartLoad(_ webView: UIWebView) {
    loadCookies()
}

func webViewDidFinishLoad(_ webView: UIWebView) {
    saveCookies()
}

Do not forget to have a delegate of your WebView for webViewDidStartLoad and webViewDidFinishLoad

Answer 5

Try this code:

SEE COOKIES STORED

    if let cookies = NSHTTPCookieStorage.sharedHTTPCookieStorage().cookies {
        for cookie in cookies {
            NSLog("\(cookie)")
        }
    }

DELETE STORED COOKIES

    var storage : NSHTTPCookieStorage = NSHTTPCookieStorage.sharedHTTPCookieStorage()
    for cookie in storage.cookies  as! [NSHTTPCookie]{
        storage.deleteCookie(cookie)
    }

swift 2.0

let storage = NSHTTPCookieStorage.sharedHTTPCookieStorage()
for cookie in storage.cookies! {
 storage.deleteCookie(cookie)
}

Swift 3.0

if let cookies = HTTPCookieStorage.shared.cookies {
    for cookie in cookies {
        NSLog("\(cookie)")
    }
}

let storage = HTTPCookieStorage.shared
for cookie in storage.cookies! {
    storage.deleteCookie(cookie)
}

Answer 6

swift 3

    let storage = HTTPCookieStorage.shared

    for cookie in storage.cookies! {
        storage.deleteCookie(cookie)
    }