protected override async Task <AuthenticationTicket> GetUserInformationAsync(AuthenticationProperties properties, TokenResponse tokens)
{
string graphAddress = Options.UserInformationEndpoint + "?access_token=" + Uri.EscapeDataString(tokens.AccessToken);
if (Options.SendAppSecretProof)
{
graphAddress += "&appsecret_proof=" + GenerateAppSecretProof(tokens.AccessToken);
}
var graphResponse = await Backchannel.GetAsync(graphAddress, Context.RequestAborted);
graphResponse.EnsureSuccessStatusCode();
string text = await graphResponse.Content.ReadAsStringAsync();
JObject user = JObject.Parse(text);
var context = new FacebookAuthenticatedContext(Context, Options, user, tokens);
var identity = new ClaimsIdentity(
Options.AuthenticationScheme,
ClaimsIdentity.DefaultNameClaimType,
ClaimsIdentity.DefaultRoleClaimType);
if (!string.IsNullOrEmpty(context.Id))
{
identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, context.Id, ClaimValueTypes.String, Options.AuthenticationScheme));
}
if (!string.IsNullOrEmpty(context.UserName))
{
identity.AddClaim(new Claim(ClaimsIdentity.DefaultNameClaimType, context.UserName, ClaimValueTypes.String, Options.AuthenticationScheme));
}
if (!string.IsNullOrEmpty(context.Email))
{
identity.AddClaim(new Claim(ClaimTypes.Email, context.Email, ClaimValueTypes.String, Options.AuthenticationScheme));
}
if (!string.IsNullOrEmpty(context.Name))
{
identity.AddClaim(new Claim("urn:facebook:name", context.Name, ClaimValueTypes.String, Options.AuthenticationScheme));
// Many Facebook accounts do not set the UserName field. Fall back to the Name field instead.
if (string.IsNullOrEmpty(context.UserName))
{
identity.AddClaim(new Claim(ClaimsIdentity.DefaultNameClaimType, context.Name, ClaimValueTypes.String, Options.AuthenticationScheme));
}
}
if (!string.IsNullOrEmpty(context.Link))
{
identity.AddClaim(new Claim("urn:facebook:link", context.Link, ClaimValueTypes.String, Options.AuthenticationScheme));
}
context.Properties = properties;
context.Principal = new ClaimsPrincipal(identity);
await Options.Notifications.Authenticated(context);
return(new AuthenticationTicket(context.Principal, context.Properties, context.Options.AuthenticationScheme));
}
internal static async Task OnAuthenticated(FacebookAuthenticatedContext context)
{
if (context.Principal != null)
{
Helpers.ThrowIfConditionFailed(() => context.AccessToken == "ValidAccessToken", "");
Helpers.ThrowIfConditionFailed(() => context.Email == "*****@*****.**", "");
Helpers.ThrowIfConditionFailed(() => context.Id == "Id", "");
Helpers.ThrowIfConditionFailed(() => context.Link == "https://www.facebook.com/myLink", "");
Helpers.ThrowIfConditionFailed(() => context.Name == "AspnetvnextTest AspnetvnextTest", "");
Helpers.ThrowIfConditionFailed(() => context.UserName == "AspnetvnextTest.AspnetvnextTest.7", "");
Helpers.ThrowIfConditionFailed(() => context.User.SelectToken("id").ToString() == context.Id, "");
Helpers.ThrowIfConditionFailed(() => context.ExpiresIn.Value == TimeSpan.FromSeconds(100), "");
Helpers.ThrowIfConditionFailed(() => context.AccessToken == "ValidAccessToken", "");
context.Principal.Identities.First().AddClaim(new Claim("ManageStore", "false"));
}
await Task.FromResult(0);
}
/// <summary>
/// Invoked whenever Facebook 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(FacebookAuthenticatedContext context)
{
return(OnAuthenticated(context));
}
/// <summary>
/// Invoked whenever Facebook 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(FacebookAuthenticatedContext context)
{
return OnAuthenticated(context);
}
