iOS如何复制Cookie到WKWebview？

Question

我不知道 how/which cookie 来自哪个网站。因此，我无法手动设置 cookie 名称。

如何让第三方 cookie 粘贴到 WKWebview？这是我的代码，但没有机会。

我的网络视图；

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); }
    }
}

我的自定义渲染器（每个请求不需要一个事件吗？此方法在第一个请求中触发一次）；

[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")));
                }
            }
        }
    }
}

我认为每个请求都应该触发一个事件，我应该能够获取访问页面的 cookie 列表，然后将其设置到我的 WebView。

请指教

Answer 1

您可以尝试通过从 WKNavigationDelegate 调用 DecidePolicy 方法来获取 cookie。

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);
}

另外，使用Renderer Customizing a WebView你可以参考这个文档。

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();
        }
    }
}

iOS如何复制Cookie到WKWebview？

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