ParamSnoop.java Source code

Introduction

Here is the source code for ParamSnoop.java

Source

    import javax.servlet.*;
    import javax.servlet.http.*;

    import java.util.Map;
    import java.util.Iterator;
    import java.util.Map.Entry;

public class ParamSnoop implements Filter {
    
    private FilterConfig config;
    
    /** Creates new ParamSnoop */
    public ParamSnoop() {
    }
    
    public void  init(FilterConfig filterConfig)  throws ServletException{
    
        this.config = filterConfig;
      
    }
    
    public void  doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
    throws java.io.IOException, ServletException {
    
       
        Map paramMap = request.getParameterMap();
        ServletContext context = config.getServletContext();
        /* use the ServletContext.log method to log 
        param names/values */
         context.log("doFilter called in: " + config.getFilterName() +  
          " on " + (new java.util.Date()));
        context.log("Snooping the parameters in request: " + 
            ((HttpServletRequest) request).getRequestURI());
            
         Iterator iter = paramMap.entrySet().iterator();
          while (iter.hasNext()){
             
             Map.Entry me = (Map.Entry) iter.next();
             context.log((String)me.getKey() + ": " + ((String[]) me.getValue())[0]);
          }

        chain.doFilter(request,response); 
      
    }
    
    public void destroy(){
        /*called before the Filter instance is removed 
        from service by the web container*/
    }
}
    import javax.servlet.*;
    import javax.servlet.http.*;

    import java.util.Map;
    import java.util.Iterator;
    import java.util.Map.Entry;

    public class ParamSnoop implements Filter {

        private FilterConfig config;

        /** Creates new ParamSnoop */
        public ParamSnoop() {
        }

        public void init(FilterConfig filterConfig) throws ServletException {

            this.config = filterConfig;

        }

        public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
                throws java.io.IOException, ServletException {

            Map paramMap = request.getParameterMap();
            ServletContext context = config.getServletContext();
            /* use the ServletContext.log method to log 
            param names/values */
            context.log("doFilter called in: " + config.getFilterName() + " on " + (new java.util.Date()));
            context.log("Snooping the parameters in request: " + ((HttpServletRequest) request).getRequestURI());

            Iterator iter = paramMap.entrySet().iterator();
            while (iter.hasNext()) {

                Map.Entry me = (Map.Entry) iter.next();
                context.log((String) me.getKey() + ": " + ((String[]) me.getValue())[0]);
            }

            chain.doFilter(request, response);

        }

        public void destroy() {
            /*called before the Filter instance is removed 
            from service by the web container*/
        }
    }