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/*
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 *
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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
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 * Copyright 2004 The Apache Software Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
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// Portions Copyright [2019] Payara Foundation and/or affiliates

package org.apache.catalina.ssi;


import org.glassfish.web.util.HtmlEntityEncoder;

import java.io.PrintWriter;
import java.util.Collection;
import java.util.Iterator;
/**
 * Implements the Server-side #printenv command
 * 
 * @author Dan Sandberg
 * @author David Becker
 * @version $Revision: 1.3 $, $Date: 2007/02/13 19:16:21 $
 */
public class SSIPrintenv implements SSICommand {
    /**
     * @see SSICommand
     */
    @Override
    public long process(SSIMediator ssiMediator, String commandName,
            String[] paramNames, String[] paramValues, PrintWriter writer) {
    	long lastModified = 0;
        //any arguments should produce an error
        if (paramNames.length > 0) {
            String errorMessage = ssiMediator.getConfigErrMsg();
            writer.write(HtmlEntityEncoder.encodeXSS(errorMessage));
        } else {
            Collection variableNames = ssiMediator.getVariableNames();
            Iterator iter = variableNames.iterator();
            while (iter.hasNext()) {
                String variableName = iter.next();
                String variableValue = ssiMediator
                        .getVariableValue(variableName);
                //This shouldn't happen, since all the variable names must
                // have values
                if (variableValue == null) {
                    variableValue = "(none)";
                }
                writer.write(variableName);
                writer.write('=');
                writer.write(variableValue);
                writer.write('\n');
                lastModified = System.currentTimeMillis();
            }
        }
        return lastModified;
    }
}