public string GetResponseHtml(IDictionary<string, string> parameters, Uri signinUri)
{
string code = parameters["code"];
// Exchange the Request Token for an Access Token
string appId = _settings.VkApplicationId;
string appSecret = _settings.VkApplicationSecret;
string scheme = parameters["SERVER_PORT_SECURE"] == "1" ? "https" : "http";
var callbackUri = new UriBuilder(string.Format("{0}://{1}", scheme, parameters["HTTP_HOST"]))
{
Path = parameters["URL"],
Query = string.Format("context={0}", parameters["context"])
};
var service = new VkClient(appId, appSecret);
dynamic accessToken = service.GetAccessToken(code, callbackUri.ToString());
dynamic token = accessToken.access_token;
service.AuthenticateWith(token.ToString());
// Claims
dynamic result = service.Get("users.get", new
{
fields = "screen_name"
});
dynamic user = result.response[0];
string acsNamespace = _settings.AcsNamespace;
string wtRealm = string.Format(WtRealm, acsNamespace);
string wReply = string.Format(WReply, acsNamespace);
var requestMessage = new SignInRequestMessage(signinUri, wtRealm, wReply);
// Add extracted claims
var identity = new ClaimsIdentity(AuthenticationTypes.Federation);
identity.AddClaim(new Claim(ClaimTypes.Name, string.Format("{0} {1}", user.first_name, user.last_name)));
identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, user.uid.ToString()));
identity.AddClaim(new Claim(VkClaims.VkToken, token.ToString()));
var principal = new ClaimsPrincipal(identity);
SignInResponseMessage responseMessage = FederatedPassiveSecurityTokenServiceOperations.ProcessSignInRequest(requestMessage, principal, this);
responseMessage.Context = parameters["context"];
return responseMessage.WriteFormPost();
}
public TokenData Get(IpData data)
{
// Try to validate token
var service = new VkClient();
service.AuthenticateWith(data.Token);
dynamic result;
try
{
result = service.Get("users.get", new
{
fields = "screen_name"
});
}
catch (Exception e)
{
throw new BadGatewayException(e);
}
if (result.error != null)
{
dynamic message = result.error.error_msg ?? string.Empty;
throw new BadRequestException(message.ToString());
}
try
{
dynamic user = result.response[0];
return new TokenData
{
IdentityProvider = ProviderType.Vk,
Name = string.Format("{0} {1}", user.first_name, user.last_name),
UserIdentifier = user.uid.ToString(),
Token = data.Token,
TokenSecret = data.TokenSecret
};
}
catch (Exception e)
{
string message = string.Format("Unable to receive VK profile: {0}", e);
throw new InternalServerErrorException(message);
}
}