private async void FbStart()
{
try
{
FacebookGrid.Visibility = Visibility.Visible;
SignInVM.LoadingOn();
using (var client = new HttpClient())
{
var response = await client.GetAsync(InstaFbHelper.FacebookAddress);
if (!response.IsSuccessStatusCode)
{
FacebookGrid.Visibility = Visibility.Collapsed;
SignInVM.LoadingOff();
FacebookBlockedMsg.ShowMsg();
return;
}
}
}
catch
{
FacebookGrid.Visibility = Visibility.Collapsed;
SignInVM.LoadingOff();
FacebookBlockedMsg.ShowMsg();
return;
}
try
{
UserAgentHelper.SetUserAgent("Mozilla/5.0 (Linux; Android 4.4; Nexus 5 Build/_BuildID_) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36");
}
catch { }
try
{
DeleteFacebookCookies();
}
catch { }
FacebookGrid.Visibility = Visibility.Visible;
SignInVM.LoadingOn();
await Task.Delay(1500);
var facebookLogin = InstaFbHelper.GetFacebookLoginUri();
FacebookWebView.Navigate(facebookLogin);
}
private async void FacebookWebBrowserDocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs args)
{
try
{
var html = FacebookWebBrowser.DocumentText;
if (InstaFbHelper.IsLoggedIn(html))
{
var cookies = GetUriCookies(args.Url);
var fbToken = InstaFbHelper.GetAccessToken(html);
InstaApi = BuildApi();
Text = $"{AppName} Connecting";
var loginResult = await InstaApi.LoginWithFacebookAsync(fbToken, cookies);
if (loginResult.Succeeded)
{
Text = $"{AppName} Connected";
GetFeedButton.Visible = true;
SaveSession();
}
else
{
switch (loginResult.Value)
{
case InstaLoginResult.BadPassword:
MessageBox.Show("Wrong Password");
break;
case InstaLoginResult.ChallengeRequired:
case InstaLoginResult.TwoFactorRequired:
MessageBox.Show("You must combine Challenge Example to your project");
break;
default:
MessageBox.Show($"ERR: {loginResult.Value}\r\n{loginResult.Info.Message}");
break;
}
Text = $"{AppName} ERROR";
}
}
}
catch { }
}
private async void FacebookLoginButton_Click(object sender, EventArgs e)
{
await Task.Delay(1500);
// visible fb web browser
FacebookWebBrowser.Visible = true;
// suppress script errors
FacebookWebBrowser.ScriptErrorsSuppressed = true;
try
{
// remove handler
FacebookWebBrowser.DocumentCompleted -= new WebBrowserDocumentCompletedEventHandler(FacebookWebBrowserDocumentCompleted);
}
catch { }
// add handler
FacebookWebBrowser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(FacebookWebBrowserDocumentCompleted);
// Every time we want to login with another facebook account, we need to clear
// all cached and cookies for facebook addresses.
// WebBrowser control uses Internet Explorer so we need to clean up.
WebBrowserHelper.ClearForSpecificUrl(InstaFbHelper.FacebookAddressWithWWWAddress.ToString());
WebBrowserHelper.ClearForSpecificUrl(InstaFbHelper.FacebookAddress.ToString());
WebBrowserHelper.ClearForSpecificUrl(InstaFbHelper.FacebookMobileAddress.ToString());
// wait 3.5 second
System.Threading.Thread.Sleep(3500);
var facebookLoginUri = InstaFbHelper.GetFacebookLoginUri();
var userAgent = InstaFbHelper.GetFacebookUserAgent();
FacebookWebBrowser.Navigate(facebookLoginUri, null, null, string.Format("\r\nUser-Agent: {0}\r\n", userAgent));
do
{
Application.DoEvents();
System.Threading.Thread.Sleep(1);
}while (FacebookWebBrowser.ReadyState != WebBrowserReadyState.Complete);
}
private async void WebViewFacebookDOMContentLoaded(WebView sender, WebViewDOMContentLoadedEventArgs args)
{
try
{
SignInVM.LoadingOff();
try
{
string html = await FacebookWebView.InvokeScriptAsync("eval", new string[] { "document.documentElement.outerHTML;" });
if (InstaFbHelper.IsLoggedIn(html))
{
var cookies = GetBrowserCookie(args.Uri);
var sbCookies = new StringBuilder();
foreach (var item in cookies)
{
sbCookies.Append($"{item.Name}={item.Value}; ");
}
var fbToken = InstaFbHelper.GetAccessToken(html);
Helper.InstaApiTrash = Helper.BuildApi();
await Helper.InstaApiTrash.SendRequestsBeforeLoginAsync();
SignInVM.LoadingOn();
var loginResult = await Helper.InstaApiTrash.LoginWithFacebookAsync(fbToken, sbCookies.ToString());
FacebookGrid.Visibility = Visibility.Collapsed;
SignInVM.HandleLogin(loginResult);
}
}
catch { }
}
catch (Exception ex)
{
ex.PrintException("WebViewFacebookDOMContentLoaded");
}
}
