Exemplo n.º 1
0
        protected override async Task <AuthenticationTicket> AuthenticateCoreAsync()
        {
            AuthenticationProperties properties = null;

            try
            {
                string code  = null;
                string state = null;

                IReadableStringCollection query  = Request.Query;
                IList <string>            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];
                }

                if (!ValidateStateId(state, out properties))
                {
                    return(null);
                }

                // OAuth2 10.12 CSRF
                if (!ValidateCorrelationId(properties, _logger))
                {
                    return(new AuthenticationTicket(null, properties));
                }

                var tokenRequestParameters = new List <KeyValuePair <string, string> >()
                {
                    new KeyValuePair <string, string>("appid", Options.AppId),
                    new KeyValuePair <string, string>("secret", Options.AppSecret),
                    new KeyValuePair <string, string>("code", code),
                    new KeyValuePair <string, string>("grant_type", "authorization_code"),
                };
                var requestContent = new FormUrlEncodedContent(tokenRequestParameters);

                // 通过code获取access_token
                HttpResponseMessage response = await _httpClient.PostAsync(TokenEndpoint, requestContent, Request.CallCancelled);

                response.EnsureSuccessStatusCode();
                string oauthTokenResponse = await response.Content.ReadAsStringAsync();

                JObject oauth2Token = JObject.Parse(oauthTokenResponse);
                var     accessToken = oauth2Token["access_token"].Value <string>();

                // Refresh token is only available when wl.offline_access is request.
                // Otherwise, it is null.
                var refreshToken = oauth2Token.Value <string>("refresh_token");
                var expire       = oauth2Token.Value <string>("expires_in");

                if (string.IsNullOrWhiteSpace(accessToken))
                {
                    _logger.WriteWarning("Access token was not found");
                    return(new AuthenticationTicket(null, properties));
                }

                var openId  = oauth2Token.Value <string>("openid");
                var scope   = oauth2Token.Value <string>("scope");
                var unionId = oauth2Token.Value <string>("unionid");

                // 获取用户信息
                var userInfoResponse = await _httpClient.GetAsync(string.Format(UserInfoEndpoint + "?access_token={0}&openid={1}", Uri.EscapeDataString(accessToken), Uri.EscapeDataString(openId)), Request.CallCancelled);

                userInfoResponse.EnsureSuccessStatusCode();
                string userInfoResponseString = await userInfoResponse.Content.ReadAsStringAsync();

                JObject userInformation = JObject.Parse(userInfoResponseString);
                _logger.WriteInformation(userInfoResponseString);
                var context = new WeixinAuthenticatedContext(Context, userInformation, accessToken, refreshToken, expire);

                context.Identity = new ClaimsIdentity(new[] {
                    new Claim(ClaimTypes.Name, WeixinSecurityConstants.DefaultAuthenticationType, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
                    new Claim(ClaimTypes.Surname, context.OpenId, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
                    new Claim(ClaimTypes.NameIdentifier, context.OpenId, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
                    new Claim(CommonClaimType.NickName, context.Nickame, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
                    new Claim(CommonClaimType.Avatar, context.HeadimgUrl, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
                    new Claim(WeixinSecurityConstants.WeixinClaimType, userInformation.ToString(), "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
                },
                                                      Options.AuthenticationType,
                                                      ClaimsIdentity.DefaultNameClaimType,
                                                      ClaimsIdentity.DefaultRoleClaimType);

                await Options.Provider.Authenticated(context);

                context.Properties = properties;
                return(new AuthenticationTicket(context.Identity, context.Properties));
            }
            catch (Exception ex)
            {
                _logger.WriteError("Authentication failed", ex);
                return(new AuthenticationTicket(null, properties));
            }
        }
Exemplo n.º 2
0
        ///// <summary>
        ///// Called when a Challenge causes a redirect to authorize endpoint
        ///// </summary>
        //public void ApplyRedirect(WeixinApplyRedirectContext context)
        //{
        //    OnApplyRedirect(context);
        //}

        /// <summary>
        /// Invoked whenever succesfully authenticates a user
        /// </summary>
        public Task Authenticated(WeixinAuthenticatedContext context)
        {
            return(OnAuthenticated(context));
        }