protected override async Task <AuthenticationTicket> AuthenticateCoreAsync() { AuthenticationProperties properties = null; try { string code = null; string state = null; var query = Request.Query; var values = query.GetValues("code"); if (values != null && values.Count == 1) { code = values[0]; } values = query.GetValues("state"); if (values != null && values.Count == 1) { state = values[0]; } properties = Options.StateDataFormat.Unprotect(state); if (properties == null) { return(null); } // OAuth2 10.12 CSRF if (!ValidateCorrelationId(properties, _logger)) { return(new AuthenticationTicket(null, properties)); } var requestPrefix = Request.Scheme + "://" + Request.Host; var redirectUri = requestPrefix + Request.PathBase + Options.CallbackPath; // Build up the body for the token request var body = new List <KeyValuePair <string, string> > { new KeyValuePair <string, string>("code", code), new KeyValuePair <string, string>("redirect_uri", redirectUri), new KeyValuePair <string, string>("client_id", Options.ClientId), new KeyValuePair <string, string>("client_secret", Options.ClientSecret) }; // Request the token var tokenResponse = await _httpClient.PostAsync(TokenEndpoint, new FormUrlEncodedContent(body)); tokenResponse.EnsureSuccessStatusCode(); var text = await tokenResponse.Content.ReadAsStringAsync(); // Deserializes the token response //dynamic response = JsonConvert.DeserializeObject<dynamic>(text); var responseTokens = HttpUtility.ParseQueryString(text); var accessToken = responseTokens["access_token"]; var expires = responseTokens["expires"]; // Get the StackExchange user var userRequest = new HttpRequestMessage(HttpMethod.Get, UserInfoEndpoint + "&access_token=" + Uri.EscapeDataString(accessToken) + "&key=" + Uri.EscapeDataString(Options.Key)); var graphResponse = await _httpClient.SendAsync(userRequest, Request.CallCancelled); graphResponse.EnsureSuccessStatusCode(); //According to http://api.stackexchange.com/docs/compression - //Responses would always be compressed //If Accept-Encoding request header is not set, compression would be GZIP //If Content-Encoding is not specified in response header, assume GZIP using (var stream = new GZipStream(await graphResponse.Content.ReadAsStreamAsync(), CompressionMode.Decompress)) { var sr = new StreamReader(stream); text = sr.ReadToEnd(); } var userResponse = JObject.Parse(text); JToken userAccounts; var user = userResponse.TryGetValue("items", out userAccounts) ? userAccounts.First as JObject : null; var context = new StackExchangeAuthenticatedContext(Context, user, accessToken, expires) { Identity = new ClaimsIdentity( Options.AuthenticationType, ClaimsIdentity.DefaultNameClaimType, ClaimsIdentity.DefaultRoleClaimType) }; if (!string.IsNullOrEmpty(context.Id)) { context.Identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, context.Id, XmlSchemaString, Options.AuthenticationType)); } if (!string.IsNullOrEmpty(context.UserName)) { context.Identity.AddClaim(new Claim(ClaimsIdentity.DefaultNameClaimType, context.UserName, XmlSchemaString, Options.AuthenticationType)); } if (!string.IsNullOrEmpty(context.Name)) { context.Identity.AddClaim(new Claim("urn:stackexchange:name", context.Name, XmlSchemaString, Options.AuthenticationType)); } if (!string.IsNullOrEmpty(context.Link)) { context.Identity.AddClaim(new Claim("urn:stackexchange:url", context.Link, XmlSchemaString, Options.AuthenticationType)); } if (!string.IsNullOrEmpty(context.AccessToken)) { context.Identity.AddClaim(new Claim("urn:stackexchange:accesstoken", context.AccessToken, XmlSchemaString, Options.AuthenticationType)); } if (!string.IsNullOrEmpty(context.ProfileImage)) { context.Identity.AddClaim(new Claim("urn:stackexchange:profileimage", context.ProfileImage, 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)); }
/// <summary> /// Invoked whenever StackExchange successfully authenticates a user /// </summary> /// <param name="context">Contains information about the login session as well as the user <see cref="System.Security.Claims.ClaimsIdentity"/>.</param> /// <returns>A <see cref="Task"/> representing the completed operation.</returns> public virtual Task Authenticated(StackExchangeAuthenticatedContext context) { return(OnAuthenticated(context)); }
/// <summary> /// Invoked whenever StackExchange successfully authenticates a user /// </summary> /// <param name="context">Contains information about the login session as well as the user <see cref="System.Security.Claims.ClaimsIdentity"/>.</param> /// <returns>A <see cref="Task"/> representing the completed operation.</returns> public virtual Task Authenticated(StackExchangeAuthenticatedContext context) { return OnAuthenticated(context); }
public Task ReturnEndpoint(StackExchangeAuthenticatedContext context) { return Task.FromResult<object>(null); }
public override Task Authenticated(StackExchangeAuthenticatedContext context) { context.Identity.AddClaim(new Claim("ExternalAccessToken", context.AccessToken)); return Task.FromResult<object>(null); }
public void ApplyRedirect(StackExchangeAuthenticatedContext context) { context.Response.Redirect(context.Properties.RedirectUri); }