asp中实现清除html的函数 asp中实现清除html的函数
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这个函数是必需要的,很多黑客来捣乱,黑掉数据库,会注入大量的病毒js,在存储和展示文本数据的时候,使用此函数过滤一下,可避免不少麻烦
clearhtml代码
'清除HTML代码 function clearhtml(content) content=replacehtml("[^>]*;","",content) content=replacehtml("</?marquee[^>]*>","",content) content=replacehtml("</?object[^>]*>","",content) content=replacehtml("</?param[^>]*>","",content) content=replacehtml("</?embed[^>]*>","",content) content=replacehtml("</?table[^>]*>","",content) content=replacehtml(" ","",content) content=replacehtml("</?tr[^>]*>","",content) content=replacehtml("</?th[^>]*>","",content) content=replacehtml("</?p[^>]*>","",content) content=replacehtml("</?a[^>]*>","",content) content=replacehtml("</?img[^>]*>","",content) content=replacehtml("</?tbody[^>]*>","",content) content=replacehtml("</?li[^>]*>","",content) content=replacehtml("</?span[^>]*>","",content) content=replacehtml("</?div[^>]*>","",content) content=replacehtml("</?th[^>]*>","",content) content=replacehtml("</?td[^>]*>","",content) content=replacehtml("</?script[^>]*>","",content) content=replacehtml("(javascript|jscript|vbscript|vbs):","",content) content=replacehtml("on(mouse|exit|error|click|key)","",content) content=replacehtml("<\\?xml[^>]*>","",content) content=replacehtml("<\/?[a-z]+:[^>]*>","",content) content=replacehtml("</?font[^>]*>","",content) content=replacehtml("</?h[^>]*>","",content) content=replacehtml("</?u[^>]*>","",content) content=replacehtml("</?i[^>]*>","",content) content=replacehtml("</?center[^>]*>","",content) content=replacehtml("</?center[^>]*>","",content) content=replacehtml("</?nobr[^>]*>","",content) content=replacehtml("</?clk[^>]*>","",content) content=replacehtml("</?muti[^>]*>","",content) content=replacehtml("</?/option[^>]*>","",content) content=replacehtml("</?o[^>]*>","",content) content=replacehtml("</?strong[^>]*>","",content) clearhtml=content end function
replacehtml代码
function replacehtml(patrn,strng,content) if isnull(content) then content="" end if set regex=new regexp regex.pattern=patrn regex.ignorecase=true regex.global=true replacehtml=regex.replace(content,strng) end function
使用方法:
复制代码 代码如下:
<%=clearhtml("<div id="CodeTip"><h2>分享代码提示(2)</h2><ul><li style="font-weight: bold; color: rgb(170, 0, 0);">添加完代码必须点击“完成并查看”生效</li><li>准确的编程语言,可正确对代码语法着色</li><li>输入简单几个字的代码片段说明</li><li>上传源码文件时无需再输入说明</li><li>非程序相关文件将直接删除,严重封帐号</li><li>图片仅用来上传截图之类的文件,勿作他途</li></ul></div>")%>
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