public LoginHandler(
IDatabaseManager dbm,
CryptographyManager cpm,
RedisServer rs,
ILoggerUtil logger,
SessionService sessionService)
: base(RouteConfig.Login)
{
// Todo: Refactor this into POST request to mitigate CSRF.
// http://www.jhovgaard.com/nancy-csrf/
Get[RouteConfig.Login_Request, true] = _handleLogin;
_databaseManager = dbm;
_cryptographyManager = cpm;
_redisServer = rs;
_logger = logger;
_sessionService = sessionService;
//This might add a bit of latency to login requests, but I doubt it will be a problem. Adding this comment in case we need to debug it in the future.
_instanceId = rs.GenerateUniqueId().Result;
_redisServer.Subscribe(ChannelTypes.WebLogin, _instanceId, _handleRedisLoginDataResponse);
}
protected override void ApplicationStartup(TinyIoCContainer container, IPipelines pipelines)
{
container.Register <IDatabaseManager, DBStateResolver>().AsSingleton();
#if !DEBUG
DiagnosticsHook.Disable(pipelines);
#else
StaticConfiguration.EnableRequestTracing = true;
#endif
redisServer = new RedisServer(LogError, LogDebug, (new RedisConfig()).Address);
container.Register <RedisServer>(redisServer);
var serviceId = redisServer.GenerateUniqueId().Result;
container.Register <IServerConfigService, WebServerConfigService>(new WebServerConfigService(redisServer, serviceId));
sessionService = container.Resolve <SessionService>();
// CSRF that uses Redis for shared token generation. Tokens currently don't expire.
Csrf.Enable(pipelines, new CryptographyConfiguration(
new RijndaelEncryptionProvider(new RedisBasedKeyGenerator(redisServer)),
new DefaultHmacProvider(new RedisBasedKeyGenerator(redisServer)))
);
pipelines.BeforeRequest.AddItemToEndOfPipeline(ctx =>
{
var origin = ctx.Request.Headers["Origin"].FirstOrDefault();
if (origin == null)
{
return(null);
}
var matches = corsDomains.FirstOrDefault(
allowed => Regex.IsMatch(origin, "^" + allowed + "$", RegexOptions.IgnoreCase));
// No matches, so let's abort.
if (matches == null)
{
var responseJson = (Response)"CORS not allowed.";
responseJson.ContentType = "application/json";
responseJson.StatusCode = HttpStatusCode.BadRequest;
return(responseJson);
}
return(null);
});
pipelines.AfterRequest.AddItemToEndOfPipeline(ctx =>
{
var origin = ctx.Request.Headers["Origin"].FirstOrDefault();
if (origin == null)
{
return;
}
ctx.Response.Headers.Add("Access-Control-Allow-Origin", origin);
ctx.Response.Headers.Add("Access-Control-Allow-Methods", "POST,GET,DELETE,PUT,OPTIONS");
ctx.Response.Headers.Add("Access-Control-Allow-Credentials", "true");
ctx.Response.Headers.Add("Access-Control-Allow-Headers", "Accept,Origin,Content-type");
ctx.Response.Headers.Add("Access-Control-Expose-Headers", "Accept,Origin,Content-type");
});
pipelines.BeforeRequest.AddItemToEndOfPipeline(ProcessSessionAuth);
pipelines.OnError += (ctx, ex) => {
throw ex;
};
}
