HTTP服务器软件系统的设计与实现(20)
public static ApplicationResponse Generate404Page(HttpRequest request， string bodyMessage， string pageHeader， string title = "Error Page")
{
//检查如果存在defaultPage
if (!File.Exists(HttpApplicationManager.RootDirectory + "\\" + HttpApplicationManager.DefaultPage))
{
//没有数据发送回来，所以连接将关闭。
return new ApplicationResponse(request) { Action = ResponseAction.Disconnect };
}
//获取文件
byte[] page = Helper.GetFile(HttpApplicationManager.RootDirectory + "\\" + HttpApplicationManager.DefaultPage);
string page_str = new String(Encoding.UTF8.GetChars(page));
//与异常信息填写页面
page_str = page_str.Replace("<%ws_title%>"， title);
page_str = page_str.Replace("<%ws_domain%>"， HttpApplicationManager.CurrentDomain + ":" + HttpApplicationManager.ServicePort);
page_str = page_str.Replace("<%ws_header%>"， pageHeader);
page_str = page_str.Replace("<%ws_message%>"， bodyMessage);
page = Encoding.UTF8.GetBytes(page_str);
//获取pageHeader
byte[] binheader = GetHeader(page.Length， MimeType.text_html， true， false);
//构建响应
byte[] completeResponse = binheader.Concat(page);
ApplicationResponse response = new HttpResponse(completeResponse， request);
return response;
}
/// <summary>
/// 从资源提取源MimeType
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public static MimeType GetResourceMime(string request)
{
if (string.IsNullOrEmpty(request)) return MimeType.none;
string[] filepats = request.Split(new string[] { "." }， StringSplitOptions.RemoveEmptyEntries);
if (filepats.Length > 0)
{