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