/// <summary>
/// 发送所有请求头到服务器
/// </summary>
/// <param name="req"></param>
/// <param name="_stream"></param>
private void OutHeader(RequestInfo req, Stream _stream)
{
var _out = new StreamWriter(_stream);
_out.Write(String.Format("GET {0} HTTP/1.0 \r\n", req.Path));
var host = req.Host;
if (req.Port != 80)
{
host += ":" + req.Port;
}
_out.Write(String.Format(HEADERFORMAT, "HOST", host));
_out.Write(String.Format(HEADERFORMAT, HtmlStaticCore.SKIPMARKHEAD, 1));
foreach (String key in req.Headers.Keys)
{
var lowerKey = key.ToLower();
if (lowerKey != "connection" && lowerKey != "host")
{
var val = req.Headers[key];
_out.Write(String.Format(HEADERFORMAT, key, val));
}
}
_out.Write(CONNECTION_CLOSE);
_out.Write("\r\n");
_out.Flush();
_stream.Flush();
}
public Stream GenHTML(RequestInfo req)
{
using (var client = new TcpClient())
{
client.ReceiveTimeout = TIMEOUT;
client.Connect(req.Host, req.Port);
using (var stream = client.GetStream())
{
OutHeader(req, stream);
return HttpParseHelp.ToGzip(stream);
}
}
}
public Stream GenHTML(RequestInfo req)
{
var writer = new StringWriter();
HttpContext.Current.Server.Execute(req.Path, writer, true);
return new MemoryStream();
}
/// <summary>
/// 将HttpRequest转换为RequestInfo
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
private RequestInfo ToRequestInfo(HttpRequest request)
{
var info = new RequestInfo();
info.Path = request.RawUrl;
info.Host = request.Url.Host;
info.Port = request.Url.Port;
info.Headers = request.Headers;
return info;
}
/// <summary>
/// 生成缓存并保存
/// </summary>
/// <param name="context"></param>
/// <param name="key"></param>
/// <param name="info"></param>
private void GenHtmlAndSave(RequestInfo info)
{
if (!GlobalGenHtmlState.Contains(info.Key))
{
try
{
GlobalGenHtmlState.Add(info.Key);
var html = GenHTML.GenHTML(info);
if (html != null)
{
Store.Save(info.Key, html);
}
else
{
LogHelp.Warn("getHtml is null " + info.Path);
}
}
catch (Exception e)
{
throw e;
}
finally
{
GlobalGenHtmlState.Remove(info.Key);
}
}
}