对前台用户输入检测代码,Asp.Net代码库,德仔网

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代码分类
【Asp.Net】对前台用户输入检测
作者:Dezai.CN / 发布于2012/3/6/ 482
<div><span style="font-family: 'Courier New'; line-height: 1.5; white-space: pre-wrap; background-color: rgb(245, 245, 245); color: rgb(0, 0, 255); ">public</span><span class="Apple-style-span" style="font-family: 'Courier New'; line-height: 18px; white-space: pre-wrap; background-color: rgb(245, 245, 245); "> </span><span style="font-family: 'Courier New'; line-height: 1.5; white-space: pre-wrap; background-color: rgb(245, 245, 245); color: rgb(0, 0, 255); ">static</span><span class="Apple-style-span" style="font-family: 'Courier New'; line-height: 18px; white-space: pre-wrap; background-color: rgb(245, 245, 245); "> </span><span style="font-family: 'Courier New'; line-height: 1.5; white-space: pre-wrap; background-color: rgb(245, 245, 245); color: rgb(0, 0, 255); ">string</span><span class="Apple-style-span" style="font-family: 'Courier New'; line-height: 18px; white-space: pre-wrap; background-color: rgb(245, 245, 245); "> InputText(</span><span style="font-family: 'Courier New'; line-height: 1.5; white-space: pre-wrap; background-color: rgb(245, 245, 245); color: rgb(0, 0, 255); ">string</span><span class="Apple-style-span" style="font-family: 'Courier New'; line-height: 18px; white-space: pre-wrap; background-color: rgb(245, 245, 245); "> text, </span><span style="font-family: 'Courier New'; line-height: 1.5; white-space: pre-wrap; background-color: rgb(245, 245, 245); color: rgb(0, 0, 255); ">int</span><span class="Apple-style-span" style="font-family: 'Courier New'; line-height: 18px; white-space: pre-wrap; background-color: rgb(245, 245, 245); "> maxLength)</span></div>
<pre style="margin-top: 0px; margin-bottom: 0px; white-space: pre-wrap; word-wrap: break-word; font-family: 'Courier New'; line-height: 18px; background-color: rgb(245, 245, 245); ">
        {            text = text.Trim();            <span style="line-height: 1.5; color: rgb(0, 0, 255); ">if</span> (<span style="line-height: 1.5; color: rgb(0, 0, 255); ">string</span>.IsNullOrEmpty(text))                <span style="line-height: 1.5; color: rgb(0, 0, 255); ">return</span> <span style="line-height: 1.5; color: rgb(0, 0, 255); ">string</span>.Empty;            <span style="line-height: 1.5; color: rgb(0, 0, 255); ">if</span> (text.Length > maxLength)                text = text.Substring(<span style="line-height: 1.5; color: rgb(128, 0, 128); ">0</span>, maxLength);            text = Regex.Replace(text, <span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">[\\s]{2,}</span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span>, <span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span> <span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span>);    <span style="line-height: 1.5; color: rgb(0, 128, 0); ">//</span><span style="line-height: 1.5; color: rgb(0, 128, 0); ">two or more spaces</span><span style="line-height: 1.5; color: rgb(0, 128, 0); "></span>            text = Regex.Replace(text, <span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">(<[b|B][r|R]/*>)+|(<[p|P](.|\\n)*?>)</span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span>, <span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">\n</span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span>);    <span style="line-height: 1.5; color: rgb(0, 128, 0); ">//</span><span style="line-height: 1.5; color: rgb(0, 128, 0); "></span><span style="line-height: 1.5; color: rgb(0, 128, 0); "></span>            text = Regex.Replace(text, <span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">(\\s*&[n|N][b|B][s|S][p|P];\\s*)+</span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span>, <span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span> <span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span>);    <span style="line-height: 1.5; color: rgb(0, 128, 0); ">//</span><span style="line-height: 1.5; color: rgb(0, 128, 0); ">&nbsp;</span><span style="line-height: 1.5; color: rgb(0, 128, 0); "></span>            text = Regex.Replace(text, <span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span><span style="line-height: 1.5; color: rgb(128, 0, 0); "><(.|\\n)*?></span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span>, <span style="line-height: 1.5; color: rgb(0, 0, 255); ">string</span>.Empty);    <span style="line-height: 1.5; color: rgb(0, 128, 0); ">//</span><span style="line-height: 1.5; color: rgb(0, 128, 0); ">any other tags</span><span style="line-height: 1.5; color: rgb(0, 128, 0); "></span>            text = text.Replace(<span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">'</span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span>, <span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">''</span><span style="line-height: 1.5; color: rgb(128, 0, 0); ">"</span>);            <span style="line-height: 1.5; color: rgb(0, 0, 255); ">return</span> text;        }</pre>
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