Getting webbrowser cookies to log in
.net, c#, cookies, webbrowser-control
Solution
Got help from here:
Is it possible to transfer authentication from Webbrowser to WebRequest
Alkampfer posted solution. This is exactly what I needed and it worked.
This solution also takes `Http only` cookies.
You can call the GetUriCookieContainer method that returns you a CookieContainer that can be used for subsequent call with WebRequest object.
[DllImport("wininet.dll", SetLastError = true)]
public static extern bool InternetGetCookieEx(
string url,
string cookieName,
StringBuilder cookieData,
ref int size,
Int32 dwFlags,
IntPtr lpReserved);
private const Int32 InternetCookieHttponly = 0x2000;
/// <summary>
/// Gets the URI cookie container.
/// </summary>
/// <param name="uri">The URI.</param>
/// <returns></returns>
public static CookieContainer GetUriCookieContainer(Uri uri)
{
CookieContainer cookies = null;
// Determine the size of the cookie
int datasize = 8192 * 16;
StringBuilder cookieData = new StringBuilder(datasize);
if (!InternetGetCookieEx(uri.ToString(), null, cookieData, ref datasize, InternetCookieHttponly, IntPtr.Zero))
{
if (datasize < 0)
return null;
// Allocate stringbuilder large enough to hold the cookie
cookieData = new StringBuilder(datasize);
if (!InternetGetCookieEx(
uri.ToString(),
null, cookieData,
ref datasize,
InternetCookieHttponly,
IntPtr.Zero))
return null;
}
if (cookieData.Length > 0)
{
cookies = new CookieContainer();
cookies.SetCookies(uri, cookieData.ToString().Replace(';', ','));
}
return cookies;
}
Problem
I am creating an windows forms app, where I have a `webbrowser control`. After user logs in with the `webbrowser`, I want to log in also with same account with `Microsoft.Http.HttpClient` or `HttpWebRequest` or similar, it should be similar to `cURL` from `PHP`. Problem is that the webpage allows only single sign on per account and if I sign with HttpClient, it will kick the webbrowser out. What I want to know, if it is possible to hijack `webbrowser` session or get the `cookies` and use it in my `HttpClient` or similar `api`. I can use `webbrowser.Cookie` to get some data, but how to push it to `HttpClient`? Is that kind of thing even possible, that I can just take the cookies and use the same session? If so, how?