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 + "://" + this.GetHostName();
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>("grant_type", "authorization_code"),
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)
};
if (Options.RequirePkce)
{
if (properties.Dictionary.ContainsKey(PkceCodeVerifierKey))
{
string codeVerifier = properties.Dictionary[PkceCodeVerifierKey];
body.Add(new KeyValuePair <string, string>("code_verifier", codeVerifier));
}
else
{
return(new AuthenticationTicket(null, properties));
}
}
// Request the token
var tokenResponse = await _httpClient.PostAsync(Options.Endpoints.TokenEndpoint, new FormUrlEncodedContent(body));
tokenResponse.EnsureSuccessStatusCode();
var text = await tokenResponse.Content.ReadAsStringAsync();
// Deserializes the token response
dynamic response = JsonConvert.DeserializeObject <dynamic>(text);
string accessToken = (string)response.access_token;
string tokenType = (string)response.token_type;
string expires = (string)response.expires_in;
string refreshToken = (string)response.refresh_token;
// Get the Geocaching user
var userInfoEndpoint = Options.Endpoints.UserInfoEndpoint + "/me?fields=" + string.Join("%2C", Options.ProfileFields.Distinct().ToArray());
var userRequest = new HttpRequestMessage(HttpMethod.Get, userInfoEndpoint);
userRequest.Headers.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
var graphResponse = await _httpClient.SendAsync(userRequest, Request.CallCancelled);
graphResponse.EnsureSuccessStatusCode();
text = await graphResponse.Content.ReadAsStringAsync();
var user = JObject.Parse(text);
var context = new GeocachingAuthenticatedContext(Context, user, accessToken, refreshToken, expires)
{
Identity = new ClaimsIdentity(
Options.AuthenticationType,
ClaimsIdentity.DefaultNameClaimType,
ClaimsIdentity.DefaultRoleClaimType)
};
if (!string.IsNullOrEmpty(context.ReferenceCode))
{
context.Identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, context.ReferenceCode, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.Username))
{
context.Identity.AddClaim(new Claim(ClaimTypes.Name, context.Username, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.RefreshToken))
{
context.Identity.AddClaim(new Claim(Claims.RefreshToken, context.RefreshToken, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.AccessToken))
{
context.Identity.AddClaim(new Claim(Claims.AccessToken, context.AccessToken, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.MembershipLevelId))
{
context.Identity.AddClaim(new Claim(Claims.MembershipLevelId, context.MembershipLevelId, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.AvatarUrl))
{
context.Identity.AddClaim(new Claim(Claims.AvatarUrl, context.AvatarUrl, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.BannerUrl))
{
context.Identity.AddClaim(new Claim(Claims.BannerUrl, context.BannerUrl, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.Url))
{
context.Identity.AddClaim(new Claim(Claims.Url, context.Url, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.FindCount))
{
context.Identity.AddClaim(new Claim(Claims.FindCount, context.FindCount, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.HideCount))
{
context.Identity.AddClaim(new Claim(Claims.HideCount, context.HideCount, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.FavoritePoints))
{
context.Identity.AddClaim(new Claim(Claims.FavoritePoints, context.FavoritePoints, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.ProfileText))
{
context.Identity.AddClaim(new Claim(Claims.ProfileText, context.ProfileText, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.HomeCoordinates))
{
context.Identity.AddClaim(new Claim(Claims.HomeCoordinates, context.HomeCoordinates, XmlSchemaString, Options.AuthenticationType));
}
if (!string.IsNullOrEmpty(context.GeocacheLimits))
{
context.Identity.AddClaim(new Claim(Claims.GeocacheLimits, context.GeocacheLimits, 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 Geocaching 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(GeocachingAuthenticatedContext context)
{
return(OnAuthenticated(context));
}