public class DNTRequest
{
/// <summary>
/// 判断当前页面是否接收到了Post请求
/// </summary>
/// <returns>是否接收到了Post请求</returns>
public static bool IsPost()
{
return HttpContext.Current.Request.HttpMethod.Equals("POST");
}
/// <summary>
/// 判断当前页面是否接收到了Get请求
/// </summary>
/// <returns>是否接收到了Get请求</returns>
public static bool IsGet()
{
return HttpContext.Current.Request.HttpMethod.Equals("GET");
}
/// <summary>
/// 返回指定的服务器变量信息
/// </summary>
/// <param name="strName">服务器变量名</param>
/// <returns>服务器变量信息</returns>
public static string GetServerString(string strName)
{
//
if (HttpContext.Current.Request.ServerVariables[strName] == null)
{
return "";
}
return HttpContext.Current.Request.ServerVariables[strName].ToString();
}
/// <summary>
/// 返回上一个页面的地址
/// </summary>
/// <returns>上一个页面的地址</returns>
public static string GetUrlReferrer()
{
string retVal = null;
try
{
retVal = HttpContext.Current.Request.UrlReferrer.ToString();
}
catch{}
if (retVal == null)
return "";
return retVal;
}
/// <summary>
/// 得到当前完整主机头
/// </summary>
/// <returns></returns>
public static string GetCurrentFullHost()
{
HttpRequest request = System.Web.HttpContext.Current.Request;
if (!request.Url.IsDefaultPort)
{
return string.Format("{0}:{1}", request.Url.Host, request.Url.Port.ToString());
}
return request.Url.Host;
}
/// <summary>
/// 得到主机头
/// </summary>
/// <returns></returns>
public static string GetHost()
{
return HttpContext.Current.Request.Url.Host;
}
/// <summary>
/// 获取当前请求的原始 URL(URL 中域信息之后的部分,包括查询字符串(如果存在))
/// </summary>
/// <returns>原始 URL</returns>
public static string GetRawUrl()
{
return HttpContext.Current.Request.RawUrl;
}
/// <summary>
/// 判断当前访问是否来自浏览器软件
/// </summary>
/// <returns>当前访问是否来自浏览器软件</returns>
public static bool IsBrowserGet()
{
string[] BrowserName = {"ie", "opera", "netscape", "mozilla", "konqueror", "firefox"};
string curBrowser = HttpContext.Current.Request.Browser.Type.ToLower();
for (int i = 0; i < BrowserName.Length; i++)
{
if (curBrowser.IndexOf(BrowserName[i]) >= 0)
{
return true;
}
}
return false;
}
/// <summary>
/// 判断是否来自搜索引擎链接
/// </summary>
/// <returns>是否来自搜索引擎链接</returns>
public static bool IsSearchEnginesGet()
{
if (HttpContext.Current.Request.UrlReferrer == null)
{
return false;
}
string[] SearchEngine = {"google", "yahoo", "msn", "baidu", "sogou", "sohu", "sina", "163", "lycos", "tom", "yisou", "iask", "soso", "gougou", "zhongsou"};
string tmpReferrer = HttpContext.Current.Request.UrlReferrer.ToString().ToLower();
for (int i = 0; i < SearchEngine.Length; i++)
{
if (tmpReferrer.IndexOf(SearchEngine[i]) >= 0)
{
return true;
}
}
return false;
}
/// <summary>
/// 获得当前完整Url地址
/// </summary>
/// <returns>当前完整Url地址</returns>
public static string GetUrl()
{
return HttpContext.Current.Request.Url.ToString();
}
/// <summary>
/// 获得指定Url参数的值
/// </summary>
/// <param name="strName">Url参数</param>
/// <returns>Url参数的值</returns>
public static string GetQueryString(string strName)
{
if (HttpContext.Current.Request.QueryString[strName] == null)
{
return "";
}
return HttpContext.Current.Request.QueryString[strName];
}
/// <summary>
/// 获得当前页面的名称
/// </summary>
/// <returns>当前页面的名称</returns>
public static string GetPageName()
{
string [] urlArr = HttpContext.Current.Request.Url.AbsolutePath.Split('/');
return urlArr[urlArr.Length - 1].ToLower();
}
/// <summary>
/// 返回表单或Url参数的总个数
/// </summary>
/// <returns></returns>
public static int GetParamCount()
{
return HttpContext.Current.Request.Form.Count + HttpContext.Current.Request.QueryString.Count;
}
/// <summary>
/// 获得指定表单参数的值
/// </summary>
/// <param name="strName">表单参数</param>
/// <returns>表单参数的值</returns>
public static string GetFormString(string strName)
{
if (HttpContext.Current.Request.Form[strName] == null)
{
return "";
}
return HttpContext.Current.Request.Form[strName];
}
/// <summary>
/// 获得Url或表单参数的值, 先判断Url参数是否为空字符串, 如为True则返回表单参数的值
/// </summary>
/// <param name="strName">参数</param>
/// <returns>Url或表单参数的值</returns>
public static string GetString(string strName)
{
if ("".Equals(GetQueryString(strName)))
{
return GetFormString(strName);
}
else
{
return GetQueryString(strName);
}
}
/// <summary>
/// 获得指定Url参数的int类型值
/// </summary>
/// <param name="strName">Url参数</param>
/// <param name="defValue">缺省值</param>
/// <returns>Url参数的int类型值</returns>
public static int GetQueryInt(string strName, int defValue)
{
return Utils.StrToInt(HttpContext.Current.Request.QueryString[strName], defValue);
}
/// <summary>
/// 获得指定表单参数的int类型值
/// </summary>
/// <param name="strName">表单参数</param>
/// <param name="defValue">缺省值</param>
/// <returns>表单参数的int类型值</returns>
public static int GetFormInt(string strName, int defValue)
{
return Utils.StrToInt(HttpContext.Current.Request.Form[strName], defValue);
}
/// <summary>
/// 获得指定Url或表单参数的int类型值, 先判断Url参数是否为缺省值, 如为True则返回表单参数的值
/// </summary>
/// <param name="strName">Url或表单参数</param>
/// <param name="defValue">缺省值</param>
/// <returns>Url或表单参数的int类型值</returns>
public static int GetInt(string strName, int defValue)
{
if (GetQueryInt(strName, defValue) == defValue)
{
return GetFormInt(strName, defValue);
}
else
{
return GetQueryInt(strName, defValue);
}
}
/// <summary>
/// 获得指定Url参数的float类型值
/// </summary>
/// <param name="strName">Url参数</param>
/// <param name="defValue">缺省值</param>
/// <returns>Url参数的int类型值</returns>
public static float GetQueryFloat(string strName, float defValue)
{
return Utils.StrToFloat(HttpContext.Current.Request.QueryString[strName], defValue);
}
/// <summary>
/// 获得指定表单参数的float类型值
/// </summary>
/// <param name="strName">表单参数</param>
/// <param name="defValue">缺省值</param>
/// <returns>表单参数的float类型值</returns>
public static float GetFormFloat(string strName, float defValue)
{
return Utils.StrToFloat(HttpContext.Current.Request.Form[strName], defValue);
}
/// <summary>
/// 获得指定Url或表单参数的float类型值, 先判断Url参数是否为缺省值, 如为True则返回表单参数的值
/// </summary>
/// <param name="strName">Url或表单参数</param>
/// <param name="defValue">缺省值</param>
/// <returns>Url或表单参数的int类型值</returns>
public static float GetFloat(string strName, float defValue)
{
if (GetQueryFloat(strName, defValue) == defValue)
{
return GetFormFloat(strName, defValue);
}
else
{
return GetQueryFloat(strName, defValue);
}
}
/// <summary>
/// 获得当前页面客户端的IP
/// </summary>
/// <returns>当前页面客户端的IP</returns>
public static string GetIP()
{
string result = String.Empty;
result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
if (null == result || result == String.Empty)
{
result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
}
if (null == result || result == String.Empty)
{
result = HttpContext.Current.Request.UserHostAddress;
}
if (null == result || result == String.Empty || !Utils.IsIP(result))
{
return "0.0.0.0";
}
return result;
}
/// <summary>
/// 保存用户上传的文件
/// </summary>
/// <param name="path">保存路径</param>
public static void SaveRequestFile(string path)
{
if (HttpContext.Current.Request.Files.Count > 0)
{
HttpContext.Current.Request.Files[0].SaveAs(path);
}
}
// /// <summary>
// /// 保存上传的文件
// /// </summary>
// /// <param name="MaxAllowFileCount">最大允许的上传文件个数</param>
// /// <param name="MaxAllowFileSize">最大允许的文件长度(单位: KB)</param>
// /// <param name="AllowFileExtName">允许的文件扩展名, 以string[]形式提供</param>
// /// <param name="AllowFileType">允许的文件类型, 以string[]形式提供</param>
// /// <param name="Dir">目录</param>
// /// <returns></returns>
// public static Forum.AttachmentInfo[] SaveRequestFiles(int MaxAllowFileCount, int MaxAllowFileSize, string[] AllowFileExtName, string[] AllowFileType, string Dir)
// {
// int savefilecount = 0;
//
// int fcount = Math.Min(MaxAllowFileCount, HttpContext.Current.Request.Files.Count);
//
// Forum.AttachmentInfo[] attachmentinfo = new Forum.AttachmentInfo[fcount];
// for(int i=0;i<fcount;i++)
// {
// string filename = HttpContext.Current.Request.Files[i].FileName;
// string fileextname = filename.Substring(filename.LastIndexOf("."));
// string filetype = HttpContext.Current.Request.Files[i].ContentType;
// int filesize = HttpContext.Current.Request.Files[i].ContentLength;
// // 判断 文件扩展名/文件大小/文件类型 是否符合要求
// if(Utils.InArray(fileextname, AllowFileExtName) && (filesize <= MaxAllowFileSize * 1024) && Utils.InArray(filetype, AllowFileType))
// {
//
// HttpContext.Current.Request.Files[i].SaveAs(Dir + Utils.GetDateTime() + Environment.TickCount.ToString() + fileextname);
// attachmentinfo[savefilecount].Filename = filename;
// attachmentinfo[savefilecount].Filesize = filesize;
// attachmentinfo[savefilecount].Description = filetype;
// attachmentinfo[savefilecount].Filetype = fileextname;
// savefilecount++;
// }
// }
// return attachmentinfo;
//
// }
}