namespace TrainInfomationProviderService.Web
{
	using System;
	using System.Net;
	using FSLib.Network.Http;

	class HttpWebClient : HttpClient
	{
		public HttpWebClient()
			: base(null, new WebHandler())
		{

		}



	}

	class WebHandler : HttpHandler
	{
		public WebHandler()
		{
			var proxy = System.Configuration.ConfigurationManager.AppSettings["web_proxy"];
			if (!proxy.IsNullOrEmpty())
			{
				_proxy = new WebProxy(new Uri(proxy));
				var username = System.Configuration.ConfigurationManager.AppSettings["web_proxy_username"];
				if (!proxy.IsNullOrEmpty())
				{
					_proxy.UseDefaultCredentials = false;
					_proxy.Credentials = new NetworkCredential(username, System.Configuration.ConfigurationManager.AppSettings["web_proxy_password"]);
				}
			}
		}

		WebProxy _proxy;

		/// <summary>
		/// 获得用于发送请求的Request对象
		/// </summary>
		/// <param name="uri"></param>
		/// <param name="method"></param>
		/// <returns></returns>
		public override HttpWebRequest GetRequest(Uri uri, HttpMethod method, HttpContext context)
		{
			var request = base.GetRequest(uri, method, context);
			if (_proxy != null)
				request.Proxy = _proxy;

			return request;
		}
	}
}