public void Authenticate(ImapClient client, NetworkCredential credential, Account account)
{
if (!client.ServerCapability.Items.Contains("AUTH=XOAUTH"))
{
return;
}
if (string.IsNullOrEmpty(account.XOAuthKey))
{
// in this case the username is the email address;
var email = credential.UserName;
var token = new OAuthRequest().WithAnonymousConsumer().WithEndpoint("https://www.google.com/accounts/OAuthGetRequestToken").WithParameter("scope", "https://mail.google.com/") // gmail specific
.WithParameter(OAuthParameters.OAuthCallback, "oob").WithParameter("xoauth_displayname", "Kolibrie Mail") // xoauth protocol specific
.WithSignatureMethod(OAuthSignatureMethods.HmacSha1).Sign().RequestToken();
var authUrl = new OAuthRequest().WithEndpoint("https://www.google.com/accounts/OAuthAuthorizeToken").WithToken(token).GetAuthorizationUri();
Process.Start(authUrl.AbsoluteUri);
string verificationCode;
using (var form = new OAuthVerificationForm())
{
form.ShowDialog();
verificationCode = form.VerificationCode;
if (form.DialogResult.HasValue && !form.DialogResult.Value)
{
return;
}
}
var accessToken = new OAuthRequest().WithAnonymousConsumer().WithEndpoint("https://www.google.com/accounts/OAuthGetAccessToken").WithParameter(OAuthParameters.OAuthVerifier, verificationCode).WithSignatureMethod(OAuthSignatureMethods.HmacSha1).WithToken(token).Sign().RequestToken();
var xOUrl = string.Format("https://mail.google.com/mail/b/{0}/imap/", email);
account.XOAuthKey = new OAuthRequest().WithAnonymousConsumer().WithEndpoint(xOUrl).WithSignatureMethod(OAuthSignatureMethods.HmacSha1).WithToken(accessToken).Sign().CreateXOAuthKey();
Console.WriteLine("XOAth key: " + account.XOAuthKey);
}
client.AuthenticateXOAuth(account.XOAuthKey);
}