I need to ebed a web browser in a Wpf app, I tried with the one from the toolbox but get some issues and went to CefSharp.
public MainWindow()
{
InitializeComponent();
BrowserSettings settings = new BrowserSettings();
Cef.Initialize(new CefSettings());
CefSharp.Wpf.ChromiumWebBrowser webBrowser = new CefSharp.Wpf.ChromiumWebBrowser();
licence_grid.Children.Add(webBrowser);
webBrowser.Address = "http://myurlToLoad the page";
}
The problem is when I used a normal url the page load.
But when I used the url I intend to use and whith which the user enter his user and password in a browser pop up (I mean not a pop up from the website) . I get an error with this page take yoo much time to load and nothing else.
Can someone give me some tracks to follow...
Thanks
It sounds like the popup you are referring to is in fact the site prompting for basic authentication.
In that case you need to provide an IRequestHandler.GetAuthCredentials handler.
As the question & answer is very old and i would like to give the latest update on this solution, there is slight change as per original solution suggested.
anybody consuming cefsharp need to implement the authentication dialog. and changes in method is
bool IRequestHandler.GetAuthCredentials(IWebBrowser browserControl, IBrowser browser, IFrame frame, bool isProxy,
string host, int port, string realm, string scheme, IAuthCallback callback)
{
//NOTE: If you do not wish to implement this method returning false is the default behaviour
// We also suggest you explicitly Dispose of the callback as it wraps an unmanaged resource.
// shyam - original implemenation.
//callback.Dispose();
//return false;
bool handled = false;
// Instantiate the dialog box
AuthDialog dlg = new AuthDialog(host); // create new dialog with username and password field.
// Open the dialog box modally
dlg.ShowDialog();
if (dlg.DialogResult == System.Windows.Forms.DialogResult.OK)
{
// The user did not cancel out of the dialog. Retrieve the username and password.
callback.Continue(dlg.UserName,dlg.Password);
handled = true;
}
return handled;
}
Related
I am using the ReportViewer in my WPF application and I am trying to get a custom protocol to work with the application. So I get the ability to open sub-programs inside my application when a url is clicked inside the ReportViewer.
When I click on the custom-protocol-url (inside the ReportViewer) nothing happens.
When I open the same report via the Web-Browser, my URL works flawlessly.
It seems like the ReportViewer doesn't allow custom protocols? Has anyone experienced that aswell? Is there any documentation on that?
http, https and mailto are working in the ReportViewer.
I am just adding an Action in the Report pointing to my url
customurl://123
Url definition:
[HKEY_CLASSES_ROOT\customurl]
#="URL: customurl Protocol"
"URL Protocol"=""
[HKEY_CLASSES_ROOT\customurl\shell]
[HKEY_CLASSES_ROOT\customurl\shell\open]
[HKEY_CLASSES_ROOT\customurl\shell\open\command]
#="\"C:\\Extra Programme\\TestAlert.exe\" \"%1\""
Testalert (just the test-program by microsoft):
static string ProcessInput(string s)
{
// TODO Verify and validate the input
// string as appropriate for your application.
return s;
}
static void Main(string[] args)
{
Console.WriteLine("Alert.exe invoked with the following parameters.\r\n");
Console.WriteLine("Raw command-line: \n\t" + Environment.CommandLine);
Console.WriteLine("\n\nArguments:\n");
foreach (string s in args)
{
Console.WriteLine("\t" + ProcessInput(s));
}
Console.WriteLine("\nPress any key to continue...");
Console.ReadKey();
}
I have looked into the code of ReportViewer and found an if statement, that checks if the url starts with either http:// or https:// or mailto:.
It gets this information with Uri.UriSchemeHttp, Uri.UriSchemeHttps and Uri.UriSchemeMailto
So you could overwrite eg. Uri.UriSchemeHttp with "customurl" (if your url is customurl://123) before rendering the report.
var field = typeof(Uri).GetField("UriSchemeHttp");
field.SetValue(null, "customurl");
The more elegant solution would be, to use a webbrowser control and just show the SSRS Web-Page
I am developing a WPF application in which I am working with twitter API. To show twitter authentication page I am using WPF web-browser control. I am able to login and use twitter API successfully. My problem is that I need to clear web browser's cookies to implement logout functionality. Is there any way to clear session cookies in WPF web browser?
I ran into this issue yesterday and finally came up with a full solution today. The answer is mentioned here which is put into more detail here and here.
The primary issue here is that the WebBrowser (in WPF and WinForms) does not permit you to modify (delete) existing session cookies. These session cookies are what prevent a multi-user single device experience from being successful.
The StackOverflow response in the link above omits an important part, it requires the use of an unsafe code block, instead of using the Marshal service. Below is a full solution that can be placed into your project to suppress the session cookie persistence.
public static partial class NativeMethods
{
[DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern bool InternetSetOption(IntPtr hInternet, int dwOption, IntPtr lpBuffer, int dwBufferLength);
private const int INTERNET_OPTION_SUPPRESS_BEHAVIOR = 81;
private const int INTERNET_SUPPRESS_COOKIE_PERSIST = 3;
public static void SuppressCookiePersistence()
{
var lpBuffer = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(int)));
Marshal.StructureToPtr(INTERNET_SUPPRESS_COOKIE_PERSIST, lpBuffer, true);
InternetSetOption(IntPtr.Zero, INTERNET_OPTION_SUPPRESS_BEHAVIOR, lpBuffer, sizeof(int));
Marshal.FreeCoTaskMem(lpBuffer);
}
}
Check the following,
http://social.msdn.microsoft.com/Forums/en/wpf/thread/860d1b66-23c2-4a64-875b-1cac869a5e5d
private static void _DeleteSingleCookie(string name, Uri url)
{
try
{
// Calculate "one day ago"
DateTime expiration = DateTime.UtcNow - TimeSpan.FromDays(1);
// Format the cookie as seen on FB.com. Path and domain name are important factors here.
string cookie = String.Format("{0}=; expires={1}; path=/; domain=.facebook.com", name, expiration.ToString("R"));
// Set a single value from this cookie (doesnt work if you try to do all at once, for some reason)
Application.SetCookie(url, cookie);
}
catch (Exception exc)
{
Assert.Fail(exc + " seen deleting a cookie. If this is reasonable, add it to the list.");
}
}
I have not tested this, but I think the best way would be to define a Javascript method on the page (if you're able to) that clears the cookie.
document.cookie='c_user=;expires=Thu, 01 Jan 1970 00:00:00 GMT;domain=.facebook.com';
(or whatever the cookie name is). Then you can use the InvokeScript method on the WebBrowser control.
I have a link on my app UI that launches a URL using System.Diagnostics.Process.Start(). If the user clicks the link several times, it opens several tabs.
Is there a way, maybe a command-line option, to still use the default web browser, but have it just reopen the same tab if the URL is already open? It would be OK if it doesn't work with every possible browser out there, but nice if it at least works with IE, Firefox and Chrome.
I doubt it, but since I didn't see any other questions/answers on this topic, I figured I'd ask.
This is somewhat of a workaround but it might get you started. I have used the System.Diagnostics.Process.ProcessId.
As an example I have used IE, I will explain later why I did this. The code is just "quick and dirty" but I just made it as proof of concept.
I have created a basic WinForm app with one button that will open google in IE, if it has already been opened by the application it will not be opened again.
I added the System.Diagnostics reference.
public int ProcessID;
public Form1()
{
InitializeComponent();
}
private void MyButton_Click(object sender, EventArgs e)
{
if (ProcessID == null)
{
StartIE();
}
else
{
if (!ProcessIsRunning())
{
StartIE();
}
}
}
private bool ProcessIsRunning()
{
bool ProcessRunning = false;
foreach (Process p in Process.GetProcesses())
{
try
{
if (p.Id == ProcessID)
{
ProcessRunning = true;
}
}
catch { }
}
return ProcessRunning;
}
private void StartIE()
{
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo.FileName = "iexplore.exe";
proc.StartInfo.Arguments = "http://www.google.be";
proc.Start();
ProcessID = proc.Id;
}
This does not completely do what you requested but it might be a good start. There are a few reasons why I did it this way and what possible options are..
If you would use the url as the Filename, it would indeed open up the webpage in the default browser, it would however not return a processID. This is why the snippet shows usage of IE. (If you would use this option, you could use the System.IO.File.Exists to make sure the desired browser is installed)
If you would like to use this option, you can query the registry to pick up what te default browser is, if you have that you could launch that from the value obtained from the registry. If you then change the process.startinfo.filename to this value, then you will launch the default browser but you will still obtain a processId so this might be the way forward. You can check how to do this over here: http://social.msdn.microsoft.com/Forums/en/netfxbcl/thread/b200903e-ce69-4bd4-a436-3e20a7632dc4
Showing the internet window if it would already be opened, can be done by using the SetForegroundWindow property. As this is already documented in this article, I did not add it in this snippet.
I hope this helps to get you on your way.
Its very simple question, I'm new to this and I can't understand the problem , I am trying to get the user name and display it in a label , when i try this code to get the access token it doesn't enter the condition :
it enters the event of (browser_navigated) but not the Conditions in , anyone knows whats the problem ?
private void webBrowser_Navigated(object sender, System.Windows.Navigation.NavigationEventArgs e)
{
FacebookOAuthResult result;
if (FacebookOAuthResult.TryParse(e.Uri, out result))
{
if (result.IsSuccess)
{
var accesstoken = result.AccessToken;
}
else
{
var errorDescription = result.ErrorDescription;
var errorReason = result.ErrorReason;
}
}
There is an annoying bug in wpf browser control which ignores everything after #. (This is only for web browser controls based on wpf so it is present in silverlight and wp7 web browser controls as well.)
Facebook returns access token as part of url fragment.
https://url.com#access_token=....
Due to the bug, when you pass e.Uri as a parameter it doesn't part #access_token=.. thus fb c# sdk thinks it is not a valid oauth callback url and thus TryParse always returns false.
Solution:
Either use the winforms browser control for login or set response_type as code token and then exchange code for access token.
I'm currently trying out Silverlight with RIA Services. I'm implementing a simple login form. I'm also using the provided Authentication Domain Service template which generates the following file:
[EnableClientAccess]
public class AuthenticationDomainService : AuthenticationBase<User>
{
// To enable Forms/Windows Authentication for the Web Application,
// edit the appropriate section of web.config file.
}
public class User : UserBase
{
// NOTE: Profile properties can be added here
// To enable profiles, edit the appropriate section of web.config file.
// public string MyProfileProperty { get; set; }
public int DefaultRows { get; set; }
}
Now I can login/logout without problem in my application. In the Silverlight app, after logging in, the line:
WebContext.Current.User.IsAuthenticated;
return true.
However, I need to persist this across sessions (i.e. when I reload the page using F5).
Currently, when the page reloads, I have to re-login.
Here is my Login code:
WebContext.Current.Authentication.Login(new LoginParameters(this.UserName, this.Password, true, string.Empty),
(LoginOperation loginOperation) =>
{
if (loginOperation.LoginSuccess)
{
NotificationMessage Message = new NotificationMessage(this, null, "CLOSE");
Messenger.Default.Send<NotificationMessage>(Message);
}
}, null);
The third parameter of the Login method is the IsPersistent parameter. From the MSDN Docs, I'd think that when setting it to true, the next time I load the page, the user would still be logged in. However, this is not the case.
Do I somehow need to read a cookie which has been set internally and then login in the background with the username/password provided by that cookie? Or is there some other magic at work here?
I hope somehow has already done this.
Thanks in advance
After going through the Silverlight Business Application template, I found this line of code:
WebContext.Current.Authentication.LoadUser(this.Application_UserLoaded, null);
A good place to call it is in the Application's Startup event inside App.xaml.cs. This will load the authenticated user from the server.
I thought I'd post this if anyone happens to stumble across the same problem.