> Is it possible to programmatically change the Server header? > Barring that, is it possible to set a Server header for a > servlet within its web.xml file? > My least preferred method is to change the Server header > within Tomcat's server.xml file.
I looked at Tomcat's source code, and that Server header is hard-coded with values read in from a properties file and set in source. As such, there looks to be no way to specify a different value in the server.xml or web.xml. A poor design decision in my mind, but nevertheless. I was thinking that a javax.servlet.Filter which intercepts a call to set an HTTP header would do the trick. I wrote a naive Filter (listed below) and added parameters to my web.xml (also shown below) to accomplish this. Its init() and doFilter() methods are called, but the setHeader() method of the HttpServletResponseWrapper is never hit. Can calls to setHeader() in Tomcat source, specifically HttpConnector, be wrapped with Filter objects? or does that only apply to calls within servlet source? How can I wrap all calls to setHeader()? thanks, Ian. /** * The javax.servlet.Filter to set HTTP headers to null. */ public class HttpRemoveHeaderFilter implements Filter { private String headerToRemove; public void destroy() { } public void doFilter( ServletRequest request, ServletResponse response, FilterChain chain ) throws IOException, ServletException { chain.doFilter( request, new RemoveHeaderWrapper( (HttpServletResponse)response, headerToRemove ) ); } public void init( FilterConfig config ) throws ServletException { headerToRemove = config.getInitParameter( "remove" ); } private final class RemoveHeaderWrapper extends HttpServletResponseWrapper { private String headerToRemove; public RemoveHeaderWrapper( HttpServletResponse response, String headerToRemove ) { super( response ); this.headerToRemove = headerToRemove; } public void setHeader( String s, String s1 ) { if( s.matches( headerToRemove ) ) { super.setHeader( s, null ); } else { super.setHeader( s, s1 ); } } } } Below are the associated contents of my web.xml file. <filter> <filter-name>removeHeader</filter-name> <filter-class>HttpRemoveHeaderFilter</filter-class> <init-param> <param-name>remove</param-name> <param-value>Server</param-value> </init-param> </filter> <filter-mapping> <filter-name>removeHeader</filter-name> <url-pattern>/servlet</url-pattern> </filter-mapping> --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]