/// <summary>
/// Invoked whenever BioID 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(BioIDAuthenticatedContext context)
{
return OnAuthenticated(context);
}
/// <summary>
/// Invoked whenever BioID 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(BioIDAuthenticatedContext context)
{
return(OnAuthenticated(context));
}
protected override async Task <AuthenticationTicket> AuthenticateCoreAsync()
{
AuthenticationProperties properties = null;
try
{
// OAuth2 4.1.2. Authorization Response
string code = null;
string state = null;
IReadableStringCollection query = Request.Query;
IList <string> values = query.GetValues("error");
if (values != null && values.Count >= 1)
{
_logger.WriteVerbose("Remote server returned an error: " + Request.QueryString);
}
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));
}
if (code == null)
{
// Null if the remote server returns an error.
return(new AuthenticationTicket(null, properties));
}
string requestPrefix = Request.Scheme + "://" + Request.Host;
string redirectUri = requestPrefix + RequestPathBase + Options.CallbackPath;
var tokenRequestParameters = 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),
};
HttpRequestMessage tokenRequest = new HttpRequestMessage(HttpMethod.Post, TokenEndpoint);
tokenRequest.Content = new FormUrlEncodedContent(tokenRequestParameters);
string secret = Convert.ToBase64String(System.Text.Encoding.GetEncoding("iso-8859-1").GetBytes(Options.ClientId + ":" + Options.ClientSecret));
tokenRequest.Headers.Authorization = new AuthenticationHeaderValue("Basic", secret);
HttpResponseMessage response = await _httpClient.SendAsync(tokenRequest, Request.CallCancelled);
response.EnsureSuccessStatusCode();
string oauthTokenResponse = await response.Content.ReadAsStringAsync();
JObject oauth2Token = JObject.Parse(oauthTokenResponse);
var accessToken = oauth2Token["access_token"].Value <string>();
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));
}
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, BioIDApiEndpoint);
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
HttpResponseMessage graphResponse = await _httpClient.SendAsync(request, Request.CallCancelled);
graphResponse.EnsureSuccessStatusCode();
string accountString = await graphResponse.Content.ReadAsStringAsync();
JObject accountInformation = JObject.Parse(accountString);
var context = new BioIDAuthenticatedContext(Context, accountInformation, accessToken, refreshToken, expire);
context.Identity = new ClaimsIdentity(Options.AuthenticationType, ClaimsIdentity.DefaultNameClaimType, ClaimsIdentity.DefaultRoleClaimType);
context.Identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, context.Id, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType));
context.Identity.AddClaim(new Claim(IdentityProviderClaimType, Options.AuthenticationType, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType));
if (!string.IsNullOrWhiteSpace(context.Name))
{
context.Identity.AddClaim(new Claim(ClaimTypes.Name, context.Name, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType));
}
if (!string.IsNullOrWhiteSpace(context.Profile))
{
context.Identity.AddClaim(new Claim(BioIDClaimTypes.Profile, context.Profile, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType));
}
if (!string.IsNullOrWhiteSpace(context.Email))
{
context.Identity.AddClaim(new Claim(ClaimTypes.Email, context.Email, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType));
}
if (!string.IsNullOrWhiteSpace(context.BCID))
{
context.Identity.AddClaim(new Claim(BioIDClaimTypes.BCID, context.BCID, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType));
}
if (context.Roles != null)
{
foreach (var role in context.Roles)
{
context.Identity.AddClaim(new Claim(ClaimTypes.Role, role, "http://www.w3.org/2001/XMLSchema#string", Options.AuthenticationType));
}
}
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));
}
}
