/// <summary>Processes the HTTP request authentication.</summary>
/// <param name="context">The context.</param>
/// <returns></returns>
/// <exception cref="Exception">No auth factory established for authenticated route
/// or
/// No auth providers established for authenticated route</exception>
internal static async Task <bool> ProcessHttpRequestAuthentication(this ApiRequestContext context)
{
if (!context.RequestAborted.IsCancellationRequested)
{
if (!(context.Configuration?.AllowAnonymous ?? false))
{
// log
// ----------------------------------------------------------------------------
context.Log($"{nameof(ProcessHttpRequestAuthentication)} Not anonymous");
var authenticationComponents = context.Configuration?.AuthenticationProviders
?? new List <IAuthenticationComponent>();
// log
// ----------------------------------------------------------------------------
context.Log($"{nameof(ProcessHttpRequestAuthentication)} authenticationComponents: {authenticationComponents.Count}");
var contextResolver = context?.RequestServices?.GetService <IApiRequestContextResolver>();
var providers = authenticationComponents
.Where(a => a != null)
.Select(a => a.Activate(contextResolver))
.Where(a => a != null)
.ToList();
// log
// ----------------------------------------------------------------------------
context.Log($"{nameof(ProcessHttpRequestAuthentication)} providers: {providers.Count}");
var authProvider = providers
.FirstOrDefault(p => p.CanHandleAuthScheme(context.Request.ClientAuthenticationInfo?.AuthScheme));
// log
// ----------------------------------------------------------------------------
context.Log($"{nameof(ProcessHttpRequestAuthentication)} authProvider: {authProvider?.GetType()?.Name}");
if (authProvider != null)
{
if (context.Request.ClientAuthenticationInfo == null)
{
context.Request.ClientAuthenticationInfo = new ClientAuthentication
{
AuthenticatedBy = AuthenticationType.Provider
};
}
else
{
context.Request.ClientAuthenticationInfo.AuthenticatedBy = AuthenticationType.Provider;
}
context.Request.ClientAuthenticationInfo.AuthResult = await authProvider.Authenticate(contextResolver).ConfigureAwait(false);
}
else
{
if (context.Request.ClientAuthenticationInfo == null)
{
context.Request.ClientAuthenticationInfo = new ClientAuthentication
{
AuthenticatedBy = AuthenticationType.None
};
}
else
{
context.Request.ClientAuthenticationInfo.AuthenticatedBy = AuthenticationType.None;
}
}
context.Request.ClientAuthenticationInfo.AuthResult = context.Request.ClientAuthenticationInfo.AuthResult ?? new AuthenticationResult(false);
context.Request.ClientAuthenticationInfo.Principal = context.Request.ClientAuthenticationInfo.AuthResult.Principal;
var result = context.Request.ClientAuthenticationInfo.AuthResult;
if (!result?.IsAuthenticated ?? false)
{
var challenges = new List <string>();
foreach (var p in providers)
{
if (!challenges.Contains($"{p.Scheme} realm=\"{p.Realm}\""))
{
challenges.Add($"{p.Scheme} realm=\"{p.Realm}\"");
}
}
;
context.Response.StatusCode = 401;
challenges.ForEach(c =>
{
context.Response.AddHeader(
name: "WWW-Authenticate",
value: c,
append: false,
allowMultiple: true);
});
return(false);
}
}
else
{
if (context.Request.ClientAuthenticationInfo == null)
{
context.Request.ClientAuthenticationInfo = new ClientAuthentication
{
AuthenticatedBy = AuthenticationType.Anonymous,
AuthResult = new AuthenticationResult(true)
};
}
else
{
context.Request.ClientAuthenticationInfo.AuthenticatedBy = AuthenticationType.Anonymous;
context.Request.ClientAuthenticationInfo.AuthResult = new AuthenticationResult(true);
}
}
return(true);
}
return(false);
}