解讀Asp.net中過(guò)濾html,js,css代碼的方法_.Net教程

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      以下為引用的內(nèi)容:

      #region/// 過(guò)濾html,js,css代碼
      /// <summary>
      /// 過(guò)濾html,js,css代碼
      /// </summary>
      /// <param name="html">參數(shù)傳入</param>
      /// <returns></returns>
      public static string CheckStr(string html)
      {
      System.Text.RegularExpressions.Regex regex1 = new System.Text.RegularExpressions.Regex(@"<script[\s\S] </script *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
      System.Text.RegularExpressions.Regex regex2 = new System.Text.RegularExpressions.Regex(@" href *= *[\s\S]*script *:", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
      System.Text.RegularExpressions.Regex regex3 = new System.Text.RegularExpressions.Regex(@" no[\s\S]*=", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
      System.Text.RegularExpressions.Regex regex4 = new System.Text.RegularExpressions.Regex(@"<iframe[\s\S] </iframe *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
      System.Text.RegularExpressions.Regex regex5 = new System.Text.RegularExpressions.Regex(@"<frameset[\s\S] </frameset *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
      System.Text.RegularExpressions.Regex regex6 = new System.Text.RegularExpressions.Regex(@"\<img[^\>] \>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
      System.Text.RegularExpressions.Regex regex7 = new System.Text.RegularExpressions.Regex(@"</p>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
      System.Text.RegularExpressions.Regex regex8 = new System.Text.RegularExpressions.Regex(@"<p>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
      System.Text.RegularExpressions.Regex regex9 = new System.Text.RegularExpressions.Regex(@"<[^>]*>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
      html = regex1.Replace(html, ""); //過(guò)濾<script></script>標(biāo)記
      html = regex2.Replace(html, ""); //過(guò)濾href=javascript: (<A>) 屬性
      html = regex3.Replace(html, " _disibledevent="); //過(guò)濾其它控件的on...事件
      html = regex4.Replace(html, ""); //過(guò)濾iframe
      html = regex5.Replace(html, ""); //過(guò)濾frameset
      html = regex6.Replace(html, ""); //過(guò)濾frameset
      html = regex7.Replace(html, ""); //過(guò)濾frameset
      html = regex8.Replace(html, ""); //過(guò)濾frameset
      html = regex9.Replace(html, "");
      html = html.Replace(" ", "");
      html = html.Replace("</strong>", "");
      html = html.Replace("<strong>", "");
      return html;
      }
      #endregion
      #region /// 過(guò)濾p /p代碼
      /// <summary>
      /// 過(guò)濾p /p代碼
      /// </summary>
      /// <param name="html">參數(shù)傳入</param>
      /// <returns></returns>
      public static string InputStr(string html)
      {
      html = html.Replace(@"\<img[^\>] \>", "");
      html = html.Replace(@"<p>", "");
      html = html.Replace(@"</p>", "");
      return html;
      }
      #endregion


      /// <summary>
      /// 截取字符串
      /// </summary>
      /// <param name="str"></param>
      /// <param name="length"></param>
      /// <returns></returns>
      protected string GetLength(string str, int length)
      {
      string strR = str;
      if (str.Length > length)
      {
      strR = str.Substring(0, length) "...";
      }
      return strR;
      }

      分享:淺析ASP.NET中前臺(tái)javascript與后臺(tái)代碼調(diào)用
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      來(lái)源:模板無(wú)憂//所屬分類(lèi):.Net教程/更新時(shí)間:2009-09-05
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