How to fetch cookies values from WKWebView in Swift 4? - ios

Question

I'm not able to get cookies from this website - "https://bødekontrol.dk"
I'm using Xcode 9.4.1 and iOS 11.
I have followed below code,
import UIKit
import WebKit
class ViewController: UIViewController {
var urlString = "https://bødekontrol.dk"
var webView: WKWebView!
fileprivate var webViewIsInited = false
override func viewWillLayoutSubviews() {
if !webViewIsInited {
webViewIsInited = true
if webView == nil {
webView = WKWebView(frame: UIScreen.main.bounds, configuration: WKWebViewConfiguration())
}
view.addSubview(webView)
webView.navigationDelegate = self
webView.uiDelegate = self
webView.loadUrl(string: urlString)
}
}
}
extension ViewController: WKNavigationDelegate {
func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse, decisionHandler: #escaping (WKNavigationResponsePolicy) -> Void) {
decisionHandler(.allow)
if let httpResponse = navigationResponse.response as? HTTPURLResponse {
if let headers = httpResponse.allHeaderFields as? [String: String], let url = httpResponse.url {
let cookies = HTTPCookie.cookies(withResponseHeaderFields: headers, for: url)
for cookie in cookies {
print(cookie.description)
print("found cookie " + cookie.name + " " + cookie.value)
}
}
}
}
func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
print("didFinish navigation")
}
}
extension ViewController: WKUIDelegate {
func webView(_ webView: WKWebView, createWebViewWith configuration: WKWebViewConfiguration, for navigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView? {
if navigationAction.targetFrame == nil {
let vc = ViewController()
vc.urlString = navigationAction.request.url?.absoluteString ?? "http://google.com"
vc.view.frame = UIScreen.main.bounds
vc.webView = WKWebView(frame: UIScreen.main.bounds, configuration: configuration)
navigationController?.pushViewController(vc, animated: false)
return vc.webView
}
return nil
}
}
extension WKWebView {
func loadUrl(string: String) {
if let encoded = string.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed),
let url = URL(string: encoded)
{
if self.url?.host == url.host {
self.reload()
} else {
load(URLRequest(url: url))
}
}
}
}

Answer 1

Implement this protocol WKHTTPCookieStoreObserver and check function of this protocol.
cookiesDidChange