cyf
478 lines
17 KiB
C#
478 lines
17 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Web;
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using NOVA.DevFx.Utils;
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namespace NOVA.DevFx.Webform
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{
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/// <summary>
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/// Request操作类
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/// </summary>
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public class WRequest
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{
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/// <summary>
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/// 判断当前页面是否接收到了Post请求
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/// </summary>
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/// <returns>是否接收到了Post请求</returns>
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public static bool IsPost()
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{
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return HttpContext.Current.Request.HttpMethod.Equals("POST");
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}
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/// <summary>
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/// 判断当前页面是否接收到了Get请求
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/// </summary>
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/// <returns>是否接收到了Get请求</returns>
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public static bool IsGet()
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{
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return HttpContext.Current.Request.HttpMethod.Equals("GET");
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}
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/// <summary>
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/// 返回指定的服务器变量信息
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/// </summary>
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/// <param name="strName">服务器变量名</param>
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/// <returns>服务器变量信息</returns>
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public static string GetServerString(string strName)
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{
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//
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if (HttpContext.Current.Request.ServerVariables[strName] == null)
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{
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return "";
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}
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return HttpContext.Current.Request.ServerVariables[strName].ToString();
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}
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/// <summary>
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/// 返回上一个页面的地址
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/// </summary>
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/// <returns>上一个页面的地址</returns>
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public static string GetUrlReferrer()
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{
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string retVal = null;
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try
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{
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retVal = HttpContext.Current.Request.UrlReferrer.ToString();
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}
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catch { }
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if (retVal == null)
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return "";
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return retVal;
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}
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/// <summary>
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/// 得到当前完整主机头
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/// </summary>
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/// <returns></returns>
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public static string GetCurrentFullHost()
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{
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HttpRequest request = System.Web.HttpContext.Current.Request;
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if (!request.Url.IsDefaultPort)
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{
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return string.Format("{0}:{1}", request.Url.Host, request.Url.Port.ToString());
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}
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return request.Url.Host;
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}
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/// <summary>
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/// 得到主机头
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/// </summary>
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/// <returns></returns>
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public static string GetHost()
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{
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return HttpContext.Current.Request.Url.Host;
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}
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/// <summary>
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/// 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))
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/// </summary>
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/// <returns>原始 URL</returns>
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public static string GetRawUrl()
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{
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return HttpContext.Current.Request.RawUrl;
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}
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/// <summary>
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/// 判断当前访问是否来自浏览器软件
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/// </summary>
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/// <returns>当前访问是否来自浏览器软件</returns>
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public static bool IsBrowserGet()
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{
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string[] BrowserName = { "ie", "opera", "netscape", "mozilla", "konqueror", "firefox" };
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string curBrowser = HttpContext.Current.Request.Browser.Type.ToLower();
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for (int i = 0; i < BrowserName.Length; i++)
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{
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if (curBrowser.IndexOf(BrowserName[i]) >= 0)
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{
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return true;
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}
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}
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return false;
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}
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/// <summary>
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/// 判断是否来自搜索引擎链接
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/// </summary>
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/// <returns>是否来自搜索引擎链接</returns>
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public static bool IsSearchEnginesGet()
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{
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if (HttpContext.Current.Request.UrlReferrer == null)
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{
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return false;
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}
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string[] SearchEngine = { "google", "yahoo", "msn", "baidu", "sogou", "sohu", "sina", "163", "lycos", "tom", "yisou", "iask", "soso", "gougou", "zhongsou" };
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string tmpReferrer = HttpContext.Current.Request.UrlReferrer.ToString().ToLower();
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for (int i = 0; i < SearchEngine.Length; i++)
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{
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if (tmpReferrer.IndexOf(SearchEngine[i]) >= 0)
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{
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return true;
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}
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}
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return false;
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}
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/// <summary>
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/// 获得当前完整Url地址
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/// </summary>
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/// <returns>当前完整Url地址</returns>
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public static string GetUrl()
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{
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return HttpContext.Current.Request.Url.ToString();
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}
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/// <summary>
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/// 获得指定Url参数的值
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/// </summary>
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/// <param name="strName">Url参数</param>
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/// <returns>Url参数的值</returns>
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public static string GetQueryString(string strName)
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{
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return GetQueryString(strName, false);
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}
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/// <summary>
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/// 获得指定Url参数的值
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/// </summary>
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/// <param name="strName">Url参数</param>
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/// <param name="sqlSafeCheck">是否进行SQL安全检查</param>
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/// <returns>Url参数的值</returns>
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public static string GetQueryString(string strName, bool sqlSafeCheck)
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{
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if (HttpContext.Current.Request.QueryString[strName] == null)
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{
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return "";
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}
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if (sqlSafeCheck && !Checker.IsSafeSqlString(HttpContext.Current.Request.QueryString[strName]))
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{
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return "unsafe string";
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}
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return HttpContext.Current.Request.QueryString[strName];
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}
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/// <summary>
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/// 获得当前页面的名称
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/// </summary>
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/// <returns>当前页面的名称</returns>
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public static string GetPageName()
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{
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string[] urlArr = HttpContext.Current.Request.Url.AbsolutePath.Split('/');
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return urlArr[urlArr.Length - 1].ToLower();
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}
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/// <summary>
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/// 返回表单或Url参数的总个数
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/// </summary>
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/// <returns></returns>
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public static int GetParamCount()
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{
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return HttpContext.Current.Request.Form.Count + HttpContext.Current.Request.QueryString.Count;
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}
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/// <summary>
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/// 获得指定表单参数的值
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/// </summary>
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/// <param name="strName">表单参数</param>
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/// <returns>表单参数的值</returns>
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public static string GetFormString(string strName)
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{
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return GetFormString(strName, false);
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}
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/// <summary>
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/// 获得指定表单参数的值
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/// </summary>
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/// <param name="strName">表单参数</param>
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/// <param name="sqlSafeCheck">是否进行SQL安全检查</param>
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/// <returns>表单参数的值</returns>
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public static string GetFormString(string strName, bool sqlSafeCheck)
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{
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if (HttpContext.Current.Request.Form[strName] == null)
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{
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return "";
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}
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if (sqlSafeCheck && !Utils.Checker.IsSafeSqlString(HttpContext.Current.Request.Form[strName]))
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{
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return "unsafe string";
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}
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return HttpContext.Current.Request.Form[strName];
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}
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/// <summary>
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/// 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
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/// </summary>
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/// <param name="strName">参数</param>
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/// <returns>Url或表单参数的值</returns>
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public static string GetString(string strName)
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{
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return GetString(strName, false);
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}
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/// <summary>
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/// 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
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/// </summary>
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/// <param name="strName">参数</param>
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/// <param name="sqlSafeCheck">是否进行SQL安全检查</param>
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/// <returns>Url或表单参数的值</returns>
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public static string GetString(string strName, bool sqlSafeCheck)
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{
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if ("".Equals(GetQueryString(strName)))
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{
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return GetFormString(strName, sqlSafeCheck);
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}
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else
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{
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return GetQueryString(strName, sqlSafeCheck);
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}
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}
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/// <summary>
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/// 获得指定Url参数的int类型值
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/// </summary>
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/// <param name="strName">表单参数</param>
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/// <returns>Url参数的int类型值</returns>
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public static int GetQueryInt(string strName)
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{
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return GetQueryInt(strName, default(int));
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}
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/// <summary>
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/// 获得指定Url参数的int类型值
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/// </summary>
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/// <param name="strName">Url参数</param>
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/// <param name="defValue">缺省值</param>
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/// <returns>Url参数的int类型值</returns>
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public static int GetQueryInt(string strName, int defValue)
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{
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return TypeParse.ToInt32(HttpContext.Current.Request.QueryString[strName], defValue);
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}
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/// <summary>
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/// 获得指定表单参数的int类型值
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/// </summary>
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/// <param name="strName">表单参数</param>
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/// <returns>表单参数的int类型值</returns>
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public static int GetFormInt(string strName)
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{
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return GetFormInt(strName, default(int));
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}
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/// <summary>
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/// 获得指定表单参数的int类型值
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/// </summary>
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/// <param name="strName">表单参数</param>
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/// <param name="defValue">缺省值</param>
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/// <returns>表单参数的int类型值</returns>
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public static int GetFormInt(string strName, int defValue)
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{
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return TypeParse.ToInt32(HttpContext.Current.Request.Form[strName], defValue);
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}
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/// <summary>
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/// 获得指定Url或表单参数的int类型值, 先判断Url参数是否为0, 如为True则返回表单参数的值
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/// </summary>
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/// <param name="strName">Url或表单参数</param>
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/// <returns>Url或表单参数的int类型值</returns>
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public static int GetInt(string strName)
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{
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return GetInt(strName, default(int));
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}
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/// <summary>
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/// 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
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/// </summary>
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/// <param name="strName">Url或表单参数</param>
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/// <param name="defValue">缺省值</param>
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/// <returns>Url或表单参数的int类型值</returns>
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public static int GetInt(string strName, int defValue)
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{
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if (GetQueryInt(strName, defValue) == defValue)
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{
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return GetFormInt(strName, defValue);
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}
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else
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{
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return GetQueryInt(strName, defValue);
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}
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}
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/// <summary>
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/// 获得指定Url参数的float类型值
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/// </summary>
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/// <param name="strName">Url参数</param>
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/// <returns>Url参数的int类型值</returns>
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public static float GetQueryFloat(string strName)
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{
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return GetQueryFloat(strName, default(float));
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}
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/// <summary>
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/// 获得指定Url参数的float类型值
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/// </summary>
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/// <param name="strName">Url参数</param>
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/// <param name="defValue">缺省值</param>
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/// <returns>Url参数的int类型值</returns>
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public static float GetQueryFloat(string strName, float defValue)
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{
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return TypeParse.ToSingle(HttpContext.Current.Request.QueryString[strName], defValue);
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}
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/// <summary>
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/// 获得指定表单参数的float类型值
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/// </summary>
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/// <param name="strName">表单参数</param>
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/// <returns>表单参数的float类型值</returns>
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public static float GetFormFloat(string strName)
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{
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return GetFormFloat(strName, default(float));
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}
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/// <summary>
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/// 获得指定表单参数的float类型值
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/// </summary>
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/// <param name="strName">表单参数</param>
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/// <param name="defValue">缺省值</param>
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/// <returns>表单参数的float类型值</returns>
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public static float GetFormFloat(string strName, float defValue)
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{
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return TypeParse.ToSingle(HttpContext.Current.Request.Form[strName], defValue);
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}
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/// <summary>
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/// 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
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/// </summary>
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/// <param name="strName">Url或表单参数</param>
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/// <returns>Url或表单参数的int类型值</returns>
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public static float GetFloat(string strName)
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{
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return GetFloat(strName,default(float));
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}
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/// <summary>
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/// 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
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/// </summary>
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/// <param name="strName">Url或表单参数</param>
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/// <param name="defValue">缺省值</param>
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/// <returns>Url或表单参数的int类型值</returns>
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public static float GetFloat(string strName, float defValue)
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{
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if (GetQueryFloat(strName, defValue) == defValue)
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{
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return GetFormFloat(strName, defValue);
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}
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else
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{
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return GetQueryFloat(strName, defValue);
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}
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}
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/// <summary>
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/// 获得当前页面客户端的IP
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/// </summary>
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/// <returns>当前页面客户端的IP</returns>
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public static string GetIP()
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{
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string result = String.Empty;
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result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
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if (string.IsNullOrEmpty(result))
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{
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result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
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}
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if (string.IsNullOrEmpty(result))
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{
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result = HttpContext.Current.Request.UserHostAddress;
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}
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if (string.IsNullOrEmpty(result) || !Utils.Checker.IsIP(result))
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{
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return "127.0.0.1";
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}
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return result;
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}
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/// <summary>
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/// 保存用户上传的文件
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/// </summary>
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/// <param name="path">保存路径</param>
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public static void SaveRequestFile(string path)
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{
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if (HttpContext.Current.Request.Files.Count > 0)
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{
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HttpContext.Current.Request.Files[0].SaveAs(path);
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}
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}
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// /// <summary>
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// /// 保存上传的文件
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// /// </summary>
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// /// <param name="MaxAllowFileCount">最大允许的上传文件个数</param>
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// /// <param name="MaxAllowFileSize">最大允许的文件长度(单位: KB)</param>
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// /// <param name="AllowFileExtName">允许的文件扩展名, 以string[]形式提供</param>
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// /// <param name="AllowFileType">允许的文件类型, 以string[]形式提供</param>
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// /// <param name="Dir">目录</param>
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// /// <returns></returns>
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// public static Forum.AttachmentInfo[] SaveRequestFiles(int MaxAllowFileCount, int MaxAllowFileSize, string[] AllowFileExtName, string[] AllowFileType, string Dir)
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// {
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// int savefilecount = 0;
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//
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// int fcount = Math.Min(MaxAllowFileCount, HttpContext.Current.Request.Files.Count);
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//
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// Forum.AttachmentInfo[] attachmentinfo = new Forum.AttachmentInfo[fcount];
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// for(int i=0;i<fcount;i++)
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// {
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// string filename = HttpContext.Current.Request.Files[i].FileName;
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// string fileextname = filename.Substring(filename.LastIndexOf("."));
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// string filetype = HttpContext.Current.Request.Files[i].ContentType;
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// int filesize = HttpContext.Current.Request.Files[i].ContentLength;
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// // 判断 文件扩展名/文件大小/文件类型 是否符合要求
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// if(Utils.InArray(fileextname, AllowFileExtName) && (filesize <= MaxAllowFileSize * 1024) && Utils.InArray(filetype, AllowFileType))
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// {
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//
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// HttpContext.Current.Request.Files[i].SaveAs(Dir + Utils.GetDateTime() + Environment.TickCount.ToString() + fileextname);
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// attachmentinfo[savefilecount].Filename = filename;
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// attachmentinfo[savefilecount].Filesize = filesize;
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// attachmentinfo[savefilecount].Description = filetype;
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// attachmentinfo[savefilecount].Filetype = fileextname;
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// savefilecount++;
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// }
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// }
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// return attachmentinfo;
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//
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// }
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}
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}
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