public IHttpActionResult ExternalLogin(string provider, string error = null)
{
if (error != null)
{
return(BadRequest(Uri.EscapeDataString(error)));
}
if (!User.Identity.IsAuthenticated)
{
return(new ExternalAuthenticationChallengeResult(provider, this));
}
string redirectUri;
bool isValidUri = CommonValidations.TryParseRedirectUri(Request, out redirectUri);
if (isValidUri == false)
{
if (string.IsNullOrEmpty(redirectUri))
{
return(BadRequest("Invalid redirect URI(redirect_uri)."));
}
return(BadRequest(redirectUri));
}
try
{
ExternalData externalLoginData = new ExternalData(User.Identity as ClaimsIdentity);
if (externalLoginData == null)
{
return(InternalServerError());
}
if (externalLoginData.LoginProvider != provider)
{
ExternalProvider.SignOut(Request, DefaultAuthenticationTypes.ExternalCookie);
return(new ExternalAuthenticationChallengeResult(provider, this));
}
externalLoginData.LocalBearerToken = GenerateLocalAccessTokenResponse(User.Identity as ClaimsIdentity);
redirectUri = ExternalProvider.GetCompleteRedirectUri(redirectUri, externalLoginData);
return(Redirect(redirectUri));
}
catch (Exception ex)
{
return(BadRequest(ex.Message));
}
}
