//step 2.3
//making AuthenticationTicket after client return from Vk.com
//here we make actually autorization work
protected override async Task <AuthenticationTicket> AuthenticateCoreAsync()
{
AuthenticationProperties properties = null;
try
{
string code = "";
IReadableStringCollection query = Request.Query;
IList <string> values = query.GetValues("code");
if (values != null && values.Count == 1)
{
code = values[0];
}
properties = Options.StateDataFormat.Unprotect(Options.StoreState);
if (properties == null)
{
return(null);
}
// OAuth2 10.12 CSRF
if (!ValidateCorrelationId(properties, _logger))
{
return(new AuthenticationTicket(null, properties));
}
string requestPrefix = Request.Scheme + Uri.SchemeDelimiter + Request.Host;
string redirectUri = requestPrefix + Request.PathBase + Options.CallbackPath;
//https://oauth.vk.com/access_token?client_id=APP_ID&client_secret=APP_SECRET&code=7a6fa4dff77a228eeda56603b8f53806c883f011c40b72630bb50df056f6479e52a&redirect_uri=REDIRECT_URI
string tokenRequest = TokenEndpoint + "?client_id=" + Uri.EscapeDataString(Options.ClientId) +
"&client_secret=" + Uri.EscapeDataString(Options.ClientSecret) +
"&code=" + Uri.EscapeDataString(code) +
"&redirect_uri=" + Uri.EscapeDataString(redirectUri);
HttpResponseMessage tokenResponse = await _httpClient.GetAsync(tokenRequest, Request.CallCancelled);
tokenResponse.EnsureSuccessStatusCode();
string text = await tokenResponse.Content.ReadAsStringAsync();
var JsonResponse = JsonConvert.DeserializeObject <dynamic>(text);
string accessToken = JsonResponse["access_token"];
string expires = JsonResponse["expires_in"];
string userid = JsonResponse["user_id"];
string email = JsonResponse["email"];
//public method which dont require token
string userInfoLink = GraphApiEndpoint + "users.get.xml" +
"?user_ids=" + Uri.EscapeDataString(userid) +
"&fields=" + Uri.EscapeDataString("nickname,screen_name,photo_50");
HttpResponseMessage graphResponse = await _httpClient.GetAsync(userInfoLink, Request.CallCancelled);
graphResponse.EnsureSuccessStatusCode();
text = await graphResponse.Content.ReadAsStringAsync();
var UserInfoResponseXml = new XmlDocument();
UserInfoResponseXml.LoadXml(text);
var context = new VkAuthenticatedContext(Context, UserInfoResponseXml, accessToken, expires);
context.Identity = new ClaimsIdentity(
Options.AuthenticationType,
ClaimsIdentity.DefaultNameClaimType,
ClaimsIdentity.DefaultRoleClaimType);
context.Identity.AddClaim(new Claim("urn:vkontakte:accesstoken", context.AccessToken, XmlSchemaString,
Options.AuthenticationType));
if (!string.IsNullOrEmpty(context.Id))
{
context.Identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, context.Id, XmlSchemaString,
Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.DefaultName))
{
context.Identity.AddClaim(new Claim(ClaimsIdentity.DefaultNameClaimType, context.DefaultName,
XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.FullName))
{
context.Identity.AddClaim(new Claim("urn:vkontakte:name", context.FullName, XmlSchemaString,
Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.Link))
{
context.Identity.AddClaim(new Claim("urn:vkontakte:link", context.Link, XmlSchemaString,
Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(email))
{
context.Identity.AddClaim(new Claim(ClaimTypes.Email, email, XmlSchemaString,
Options.AuthenticationType));
}
context.Properties = properties;
await Options.Provider.Authenticated(context);
return(new AuthenticationTicket(context.Identity, context.Properties));
}
catch (Exception ex)
{
_logger.WriteError(ex.Message);
}
return(new AuthenticationTicket(null, properties));
}
public virtual Task Authenticated(VkAuthenticatedContext context)
{
return OnAuthenticated(context);
}
public virtual Task Authenticated(VkAuthenticatedContext context)
{
return(OnAuthenticated(context));
}
