WebView display Loginscreen again after login via basic authentication with HttpClient

问题

i am connecting to a server with basic authentication and after that i am calling the URL in Webview with following code:

WebView.Source(new Uri("https:(//UrlHere"));

The Webview Puts up a Login-Window, but i am already logged in. Why is this happening? How can i prevent this?

The way i a authenticate to the server:

   private async void HttpClientCall(object sender, RoutedEventArgs e)
{

    System.Diagnostics.Debug.WriteLine(this.GetType().Name + ": HTTPCLientCall entered");

    //System.Diagnostics.Debug.WriteLine("NetworkConnectivityLevel.InternetAccess: " + NetworkConnectivityLevel.InternetAccess);

    //use this, for checking the network connectivity
    System.Diagnostics.Debug.WriteLine("GetIsNetworkAvailable: " + System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable());

    //var msg = new Windows.UI.Popups.MessageDialog("GetIsNetworkAvailable: " + System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable());
    //msg.ShowAsync();


    HttpClient httpClient = new HttpClient();


    // Assign the authentication headers
    httpClient.DefaultRequestHeaders.Authorization = CreateBasicHeader("username", "password");
    System.Diagnostics.Debug.WriteLine("httpClient.DefaultRequestHeaders.Authorization: " + httpClient.DefaultRequestHeaders.Authorization);


    // Call out to the site
    HttpResponseMessage response = await httpClient.GetAsync("https://URLHere");
    System.Diagnostics.Debug.WriteLine("response: " + response);
    string responseAsString = await response.Content.ReadAsStringAsync();
    System.Diagnostics.Debug.WriteLine("response string:" + responseAsString);

    //WebViewP.Source = new Uri("https://URLHere");
}




public AuthenticationHeaderValue CreateBasicHeader(string username, string password)
{
    byte[] byteArray = System.Text.Encoding.UTF8.GetBytes(username + ":" + password);

    String logindata = (username + ":" + password);
    System.Diagnostics.Debug.WriteLine("AuthenticationHeaderValue: " + new AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray)));

    return new AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray));
}

So how can i solve that?

回答1:

This is a long shot, but you could try setting the credentials on HttpClientHandler and hope that the WebView picks it up.

var handler = new HttpClientHandler();
handler.Credentials = new NetworkCredential(username,password);
HttpClient httpClient = new HttpClient(handler);

The problem is the WebView is making it's own independent request, so any requests you make with HttpClient are independent of those made by the WebView

来源：https://stackoverflow.com/questions/19633366/webview-display-loginscreen-again-after-login-via-basic-authentication-with-http

标签

webview

windows-runtime

dotnet-httpclient