83 lines
3.2 KiB
Java
83 lines
3.2 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.catalina.ssi;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.PrintWriter;
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import org.apache.catalina.util.IOTools;
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/**
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* Implements the Server-side #exec command
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*
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* @author Bip Thelin
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* @author Amy Roh
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* @author Paul Speed
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* @author Dan Sandberg
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* @author David Becker
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*/
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public class SSIExec implements SSICommand {
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protected final SSIInclude ssiInclude = new SSIInclude();
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protected static final int BUFFER_SIZE = 1024;
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/**
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* @see SSICommand
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*/
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@Override
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public long process(SSIMediator ssiMediator, String commandName,
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String[] paramNames, String[] paramValues, PrintWriter writer) {
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long lastModified = 0;
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String configErrMsg = ssiMediator.getConfigErrMsg();
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String paramName = paramNames[0];
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String paramValue = paramValues[0];
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String substitutedValue = ssiMediator.substituteVariables(paramValue);
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if (paramName.equalsIgnoreCase("cgi")) {
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lastModified = ssiInclude.process(ssiMediator, "include",
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new String[]{"virtual"}, new String[]{substitutedValue},
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writer);
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} else if (paramName.equalsIgnoreCase("cmd")) {
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boolean foundProgram = false;
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try {
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Runtime rt = Runtime.getRuntime();
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Process proc = rt.exec(substitutedValue);
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foundProgram = true;
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BufferedReader stdOutReader = new BufferedReader(
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new InputStreamReader(proc.getInputStream()));
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BufferedReader stdErrReader = new BufferedReader(
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new InputStreamReader(proc.getErrorStream()));
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char[] buf = new char[BUFFER_SIZE];
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IOTools.flow(stdErrReader, writer, buf);
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IOTools.flow(stdOutReader, writer, buf);
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proc.waitFor();
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lastModified = System.currentTimeMillis();
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} catch (InterruptedException e) {
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ssiMediator.log("Couldn't exec file: " + substitutedValue, e);
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writer.write(configErrMsg);
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} catch (IOException e) {
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if (!foundProgram) {
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//apache doesn't output an error message if it can't find
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// a program
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}
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ssiMediator.log("Couldn't exec file: " + substitutedValue, e);
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}
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}
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return lastModified;
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}
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} |