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HttpRouter.cs
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64 lines (55 loc) · 2.18 KB
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/*
* Copyright (C) 2011 uhttpsharp project - http://github.com/raistlinthewiz/uhttpsharp
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
using System;
using System.Collections.Generic;
using System.Reflection;
using System.Linq;
namespace uhttpsharp
{
internal sealed class HttpRouter
{
public HttpRouter(IHandlerFactory handlerFactory)
{
_handlerFactory = handlerFactory;
}
private HttpResponse DefaultError()
{
return HttpResponse.CreateWithMessage(HttpResponseCode.NotFound, "Not Found");
}
private HttpResponse DefaultIndex()
{
return HttpResponse.CreateWithMessage(HttpResponseCode.Ok, "Welcome to uhttpsharp!");
}
public HttpResponse Route(HttpRequest request)
{
var function = request.Parameters.Function;
return
RouteToFunction(request, function) ??
RouteToFunction(request, "*") ??
(string.IsNullOrEmpty(function) ? (RouteToFunction(request, "") ?? DefaultIndex()) : null) ??
RouteToFunction(request, "404") ??
DefaultError();
}
private HttpResponse RouteToFunction(HttpRequest request, string function)
{
var handler = _handlerFactory.GetHandler(function);
if(handler != default(HttpRequestHandler))
return handler.Handle(request);
return null;
}
private IHandlerFactory _handlerFactory;
}
}