public void Authenticate()
{
if (httpClient != null)
{
this.tokenSource = new CancellationTokenSource();
authenticationTask = AuthenticateProcess();
}
else
{
ShrewNotifier.Log("WEB connection error for Authentication ...", ShrewConnectionStatus.Disconnected);
}
}
private async Task <bool> tryAuth()
{
bool authenticated = false;
ShrewNotifier.Log("Trying to auth on " + this.credentials.formLogin + " ...", ShrewConnectionStatus.Pending);
try
{
Uri formUri = null;
using (HttpResponseMessage response = await httpClient.GetAsync(this.credentials.formLogin))
{
String content = await response.Content.ReadAsStringAsync();
formUri = response.Headers.Location;
}
String username = regexUserName.Match(this.credentials.username).Groups["username"].Value;
String password = this.credentials.password;
using (HttpResponseMessage response = await httpClient.GetAsync(formUri))
{
String content = await response.Content.ReadAsStringAsync();
bool status = response.IsSuccessStatusCode;
}
String url = formUri.AbsoluteUri.Replace(formUri.PathAndQuery, "/");
String token = formUri.Query.Substring(1);
var data = new Dictionary <string, string>
{
{ "4Tredir", this.credentials.formLogin },
{ "magic", token },
{ "username", username },
{ "password", password }
};
using (HttpResponseMessage response = await httpClient.PostAsync(url, new FormUrlEncodedContent(data)))
{
String content = await response.Content.ReadAsStringAsync();
authenticated = response.IsSuccessStatusCode;
}
}
catch (Exception exc)
{
authenticated = false;
ShrewNotifier.Log("Auth: " + exc.Message, ShrewConnectionStatus.Disconnected);
}
return(authenticated);
}
private Task AuthenticateProcess()
{
return(Task.Run(async() => {
int failedAuthAttempts = 0;
Boolean authenticated = false;
await Task.Delay(STARTER_DELAY, tokenSource.Token);
while (!(authenticated = await tryAuth()) && ++failedAuthAttempts <= RETRY_MAX && !tokenSource.IsCancellationRequested)
{
ShrewNotifier.Log("Auth retry #" + failedAuthAttempts + " of " + RETRY_MAX + " in " + RETRY_INTERVAL_MS + " ms ...", ShrewConnectionStatus.Pending);
await Task.Delay(RETRY_INTERVAL_MS, tokenSource.Token);
}
if (authenticated)
{
ShrewNotifier.Log("Auth on " + this.credentials.formLogin + " done.", ShrewConnectionStatus.Connected);
}
else
{
ShrewNotifier.Log("Auth on " + this.credentials.formLogin + " failed!", ShrewConnectionStatus.Disconnected);
}
ShrewNotifier.Log("------------------------------------------------", ShrewConnectionStatus.Pending);
}, tokenSource.Token));
}
internal void ExecuteClient()
{
string args = string.Format(SHREW_ARGS,
credentials.siteConfigPath,
credentials.username,
credentials.password);
ProcessStartInfo psi = new ProcessStartInfo(@"C:\Program Files\ShrewSoft\VPN Client\ipsecc.exe", args);
psi.UseShellExecute = true;
Process clientProcess = new Process();
clientProcess.StartInfo = psi;
ShrewNotifier.Log("Starting new vpn client.", ShrewConnectionStatus.Pending);
hwndShrew = IntPtr.Zero;
clientProcess.Start();
Thread.Sleep(1000);
if (!this.shrewVisible)
{
HideShrew();
}
}
