How to Copy Cookie to WKWebview in iOS? - cookies

Question

I don't know how/which cookies are coming from which website. Because of that, I can't set manually the cookie names.
How can I get third party cookies to paste to a WKWebview? Here is my code but no chance.
My webview;
public class CustomWebView : WebView
{
public static readonly BindableProperty UriProperty =
BindableProperty.Create(
propertyName: "Uri",
returnType: typeof(Uri),
declaringType: typeof(CustomWebView),
defaultValue: default(string));
public string Uri
{
get { return (string)GetValue(UriProperty); }
set { SetValue(UriProperty, value); }
}
}
My custom renderer (Shouldn't necessary an event per request? This method fires once in the first request);
[assembly: ExportRenderer(typeof(CustomWebView), typeof(HTMobile.iOS.WebViewRenderer))]
namespace HTMobile.iOS
{
public class WebViewRenderer : ViewRenderer<CustomWebView, WKWebView>
{
protected override void OnElementChanged(ElementChangedEventArgs<CustomWebView> e)
{
base.OnElementChanged(e);
if (Control == null)
{
// Cookie
var cookieUrl = new Uri("abc.com");
NSHttpCookieStorage.SharedStorage.AcceptPolicy = NSHttpCookieAcceptPolicy.Always;
var cookieJar = NSHttpCookieStorage.SharedStorage;
cookieJar.AcceptPolicy = NSHttpCookieAcceptPolicy.Always;
foreach (var aCookie in cookieJar.Cookies)
{
cookieJar.DeleteCookie(aCookie);
}
var jCookies = UserInfo.CookieContainer.GetCookies(cookieUrl);
IList<NSHttpCookie> eCookies =
(from object jCookie in jCookies
where jCookie != null
select (Cookie)jCookie
into netCookie
select new NSHttpCookie(netCookie)).ToList();
cookieJar.SetCookies(eCookies.ToArray(), cookieUrl, cookieUrl);
// WebView Instance
webView = new WKWebView(Frame, new WKWebViewConfiguration());
SetNativeControl(webView);
if (e.NewElement != null)
{
Control.LoadRequest(new NSUrlRequest(new NSUrl("abc.com")));
}
}
}
}
}
I think an event should be fired per request and I should be able to get a cookie list for the visited page and then set it to my WebView.
Advise, please.

Answer 1

You can have a try with getting cookie by invoking DecidePolicy method from WKNavigationDelegate .
public class NavigationDelegate : WKNavigationDelegate
{
NSMutableArray multiCookieArr = new NSMutableArray();
public override void DecidePolicy(WKWebView webView, WKNavigationResponse navigationResponse, [BlockProxy(typeof(Action))]Action<WKNavigationResponsePolicy> decisionHandler)
{
if (UIDevice.CurrentDevice.CheckSystemVersion(12, 0))
{
WKHttpCookieStore wKHttpCookieStore = webView.Configuration.WebsiteDataStore.HttpCookieStore;
Console.WriteLine("wKHttpCookieStore is :" + wKHttpCookieStore.GetDebugDescription());
wKHttpCookieStore.GetAllCookies(cookies => {
if(cookies.Length > 0)
{
foreach (NSHttpCookie cookie in cookies)
{
//NSHttpCookieStorage.SharedStorage.SetCookie(cookie);
Console.WriteLine("cookie is :" + cookie);
}
}
});
}
else
{
NSHttpUrlResponse response = navigationResponse.Response as NSHttpUrlResponse;
NSHttpCookie[] cookiesAll = NSHttpCookie.CookiesWithResponseHeaderFields(response.AllHeaderFields, response.Url);
foreach (NSHttpCookie cookie in cookiesAll)
{
Console.WriteLine("Here is the cookie inside wkwebview is :" + cookie);
NSArray cookieArr = NSArray.FromObjects(cookie.Name, cookie.Value, cookie.Domain, cookie.Path);
multiCookieArr.Add(cookieArr);
}
Console.WriteLine("cookie is :" + cookiesAll);
}
decisionHandler(WKNavigationResponsePolicy.Allow);
//base.DecidePolicy(webView, navigationResponse, decisionHandler);
}
In addition , using Renderer to Customizing a WebView you can refer to this doc .
public class HybridWebViewRenderer : WkWebViewRenderer
{
public HybridWebViewRenderer() : this(new WKWebViewConfiguration())
{
}
public HybridWebViewRenderer(WKWebViewConfiguration config) : base(config)
{
}
protected override void OnElementChanged(VisualElementChangedEventArgs e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
//...
}
if (e.NewElement != null)
{
this.NavigationDelegate = new NavigationDelegat();
}
}
}