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Asp.net中如何过滤html,js,css代码

2008-10-02 07:47:42 编辑來源:互联网 国际版 评论
 
 
本文为【Asp.net中如何过滤html,js,css代码】的汉字拼音对照版显示拼音
  #region/// guolvhtml,js,cssdaima

   /// <summary>

   /// guolvhtml,js,cssdaima

   /// </summary>

   /// <param name="html">shenshuchuanru</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, ""); //guolv<script></script>biaoji

   html = regex2.Replace(html, ""); //guolvhref=javascript: (<A>) shuxing

   html = regex3.Replace(html, " _disibledevent="); //guolvqitakongjiandeon...shijian

   html = regex4.Replace(html, ""); //guolviframe

   html = regex5.Replace(html, ""); //guolvframeset

   html = regex6.Replace(html, ""); //guolvframeset

   html = regex7.Replace(html, ""); //guolvframeset

   html = regex8.Replace(html, ""); //guolvframeset

   html = regex9.Replace(html, "");

   html = html.Replace(" ", "");

   html = html.Replace("</strong>", "");

   html = html.Replace("<strong>", "");

   return html;

   }

   #endregion

   #region /// guolvp /pdaima

   /// <summary>

   /// guolvp /pdaima

   /// </summary>

   /// <param name="html">shenshuchuanru</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>

   /// jiequzifuchuan

   /// </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;

   }原文
 
 
#region/// 过滤html,js,css代码 /// <summary> /// 过滤html,js,css代码 /// </summary> /// <param name="html">参数传入</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, ""); //过滤<script></script>标记 html = regex2.Replace(html, ""); //过滤href=javascript: (<A>) 属性 html = regex3.Replace(html, " _disibledevent="); //过滤其它控件的on...事件 html = regex4.Replace(html, ""); //过滤iframe html = regex5.Replace(html, ""); //过滤frameset html = regex6.Replace(html, ""); //过滤frameset html = regex7.Replace(html, ""); //过滤frameset html = regex8.Replace(html, ""); //过滤frameset html = regex9.Replace(html, ""); html = html.Replace(" ", ""); html = html.Replace("</strong>", ""); html = html.Replace("<strong>", ""); return html; } #endregion #region /// 过滤p /p代码 /// <summary> /// 过滤p /p代码 /// </summary> /// <param name="html">参数传入</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; }
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