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];
}
properties = Options.StateDataFormat.Unprotect(state);
if (properties == null)
{
return(null);
}
// OAuth2 10.12 CSRF
if (!ValidateCorrelationId(Options.CookieManager, 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>("redirect_uri", GenerateRedirectUri()),
new KeyValuePair <string, string>("secret", Options.AppSecret),
new KeyValuePair <string, string>("code", code),
new KeyValuePair <string, string>("grant_type", "authorization_code"),
};
var queryString = tokenRequestParameters.Aggregate("", (current, tokenRequestParameter) => current + (tokenRequestParameter.Key + "=" + tokenRequestParameter.Value + "&"));
queryString = queryString.Remove(queryString.Length - 1, 1);
HttpResponseMessage response = await _httpClient.GetAsync(Options.TokenEndpoint + "?" + queryString);
response.EnsureSuccessStatusCode();
var oauthTokenResponse = await response.Content.ReadAsStringAsync();
JObject oauth2Token = JObject.Parse(oauthTokenResponse);
var accessToken = oauth2Token.Value <string>("access_token");
var refreshToken = oauth2Token.Value <string>("refresh_token");
var expire = oauth2Token.Value <string>("expires_in");
var scope = oauth2Token.Value <string>("scope");
var openId = oauth2Token.Value <string>("openid");
var unionId = oauth2Token.Value <string>("unionid");
if (string.IsNullOrWhiteSpace(accessToken))
{
_logger.WriteWarning("Access token was not found");
return(new AuthenticationTicket(null, properties));
}
#region Get UserInfo
var graphRequest = new HttpRequestMessage(HttpMethod.Get, Options.UserInformationEndpoint + $"?access_token={accessToken}&openid={openId}");
var graphResponse = await _httpClient.SendAsync(graphRequest, Request.CallCancelled);
graphResponse.EnsureSuccessStatusCode();
string accountString = await graphResponse.Content.ReadAsStringAsync();
JObject accountInformation = JObject.Parse(accountString);
var errcode = accountInformation.Value <string>("errcode");
if (!string.IsNullOrWhiteSpace(errcode))
{
var errmsg = accountInformation.Value <string>("errmsg");
_logger.WriteWarning(errmsg);
return(new AuthenticationTicket(null, properties));
}
#endregion
var context = new WeChatAccountAuthenticatedContext(Context, accountInformation, accessToken,
refreshToken, expire);
context.Identity = new ClaimsIdentity(
new[]
{
new Claim(ClaimTypes.NameIdentifier, context.OpenId, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
new Claim(ClaimTypes.Name, context.NickName, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
new Claim("wechataccount:openid", context.OpenId, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
new Claim("wechataccount:nickname", context.NickName, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
new Claim("wechataccount:sex", context.Sex, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
new Claim("wechataccount:headimgurl", context.HeadImgUrl, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
new Claim("wechataccount:country", context.Country, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
new Claim("wechataccount:province", context.Province, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
new Claim("wechataccount:city", context.City, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
new Claim("qqaccount:unionid", context.UnionId, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
new Claim("qqaccount:privilege", context.Privilege, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType),
}, Options.AuthenticationType, ClaimsIdentity.DefaultNameClaimType,
ClaimsIdentity.DefaultRoleClaimType);
context.Properties = properties;
await Options.Provider.Authenticated(context);
return(new AuthenticationTicket(context.Identity, context.Properties));
}
catch (Exception ex)
{
_logger.WriteError("Authentication failed", ex);
return(new AuthenticationTicket(null, properties));
}
}
/// <summary>
/// Invoked whenever WeChat succesfully 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(WeChatAccountAuthenticatedContext context)
{
return(OnAuthenticated(context));
}
