/// <summary>
/// External: The user has logged in on some other site
/// Either we are supplied a new identity, in which case we add it to our user store
/// Or we are supplied an existing identity, in which case we return the claims for this user
/// </summary>
/// <param name="identity"></param>
/// <param name="signInData"></param>
/// <returns></returns>
public async Task<AuthenticationResult> AuthenticateExternalAsync(ExternalIdentity identity, SignInData signInData)
{
//There must be an identity for this to make sense
if (identity == null)
{
throw new ArgumentNullException("identity");
}
//The user manager tries to find a matching user
var user = await manager.FindAsync(new Microsoft.AspNet.Identity.UserLoginInfo(identity.Provider, identity.ProviderId));
if (user == null)
{
//Create a new account
return await ProcessNewExternalAccountAsync(identity.Provider, identity.ProviderId, identity.Claims);
}
else
{
return await ProcessExistingExternalAccountAsync(user.Id, identity.Provider, identity.ProviderId, identity.Claims);
}
}
public async Task<AuthenticationResult> AuthenticateLocalAsync(string username, string password, SignInData signInData)
{
try
{
var user = await ValidateLocalCredentials(username, password);
if (user != null)
{
return new AuthenticationResult(user.Id, user.UserName, Enumerable.Empty<Claim>());
}
else
{
return new AuthenticationResult("Account is not able to log in.");
}
}
catch (Exception e)
{
Console.WriteLine($"Exception occurred while authenticating user {username}: {e}");
throw;
}
}
/// <summary>
/// Authentication from within our control, so we have the username and password.
/// Find the user and get the claims. It doesn't seem to automatically create new users here.
/// </summary>
/// <param name="username"></param>
/// <param name="password"></param>
/// <param name="signInData"></param>
/// <returns></returns>
public async Task<AuthenticationResult> AuthenticateLocalAsync(string username, string password, SignInData signInData)
{
if (manager.SupportsUserPassword)
{
var user = await manager.FindByNameAsync(username);
if (user != null)
{
if (manager.SupportsUserLockout &&
await manager.IsLockedOutAsync(user.Id))
{
return null;
}
if (await manager.CheckPasswordAsync(user, password))
{
if (manager.SupportsUserLockout)
{
await manager.ResetAccessFailedCountAsync(user.Id);
}
var result = await PostAuthenticateLocalAsync(user, signInData);
if (result == null)
{
var claims = await GetClaimsForAuthenticateResult(user);
return new AuthenticationResult(user.Id.ToString(), await GetDisplayNameForAccountAsync(user.Id), claims);
}
return result;
}
else if (manager.SupportsUserLockout)
{
await manager.AccessFailedAsync(user.Id);
}
}
}
return null;
}
public Task<AuthenticationResult> PreAuthenticateAsync(SignInData signInData)
{
return Task.FromResult<AuthenticationResult>(null);
}
public Task<AuthenticationResult> PostAuthenticateAsync(SignInData signInData, AuthenticationResult authenticationResult)
{
return Task.FromResult<AuthenticationResult>(authenticationResult);
}
public Task<AuthenticationResult> AuthenticateExternalAsync(ExternalIdentity identity, SignInData signInData)
{
throw new NotImplementedException();
}
/// <summary>
/// Doing nothing
/// </summary>
/// <param name="user"></param>
/// <param name="signInData"></param>
/// <returns></returns>
protected virtual Task<AuthenticationResult> PostAuthenticateLocalAsync(User user, SignInData signInData)
{
if (user == null)
{
return Task.FromResult<AuthenticationResult>(null);
}
return Task.FromResult(new AuthenticationResult(
user.Id,
user.UserName,
user.Claims.Select(c => new Claim(c.ClaimType, c.ClaimValue))));
}
