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POHow to get raw parameters before mapping
 

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  1. POHow to get raw parameters before mapping
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    <p>I've got new issue with Struts 1 framework. I need to filter some input values from page, so I wrote my custom filter to do this.</p> <p>It works great for single parameters, that are not mapped to any form. But it doesn't get parameters when it have been mapped to some struts Form field.</p> <p>Does anyone have idea how to deal with it?</p> <p>Here is code of my Filter</p> <pre><code>public class XSSFillter implements Filter { @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { chain.doFilter(new XSSRequest((HttpServletRequest) request), response); } @Override public void init(FilterConfig filterConfig) throws ServletException { } @Override public void destroy() { } } </code></pre> <p>And </p> <pre><code>public class XSSRequest extends MultipartRequestWrapper{ public XSSRequest(HttpServletRequest request) { super(request); } @Override public String[] getParameterValues(String name) { String[] values = super.getParameterValues(name); if(values == null){ return null; } String[] newValues = new String[values.length]; for(int index = 0; index &lt; values.length; index++ ){ newValues[index] = XSSFilterUtil.removeXSSTokens(values[index]); } return newValues; } @Override public String getParameter(String name) { String value = super.getParameter(name); return XSSFilterUtil.removeXSSTokens(value); } @Override public String getHeader(String name) { String value = super.getHeader(name); return XSSFilterUtil.removeXSSTokens(value); } } </code></pre> <p>Of course I've defined it in web.xml</p> <p>Here is one of most important part, I guess.</p> <pre><code>if (isMultipart) { parameterValue = multipartParameters.get(name); } else { parameterValue = request.getParameterValues(name); } </code></pre> <p>So in one case <code>parameterValue</code> is taken from <code>multipartParameters</code>, and in turn they are defined in some temporary files. I thinks the best way will be modified all request parameters and then let it go throw Struts 1.3.8 library.</p>
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    1. USSergii
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    1. COWithout knowing what precisely you're doing it's difficult to help. What do you mean by "filter some input values"?
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      1. USDave Newton
    2. COI need to filter my input values on XSS content.
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      1. USSergii
    3. COAnd how are you doing it? Not the XSS filtering post, I mean the mechanics of modifying the parameter values. We need code.
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      1. USDave Newton
 

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