001: /*
002: * SSIExec.java
003: * $Header: /home/cvs/jakarta-tomcat-4.0/catalina/src/share/org/apache/catalina/ssi/SSIExec.java,v 1.1 2002/05/24 04:38:58 billbarker Exp $
004: * $Revision: 1.1 $
005: * $Date: 2002/05/24 04:38:58 $
006: *
007: * ====================================================================
008: *
009: * The Apache Software License, Version 1.1
010: *
011: * Copyright (c) 1999 The Apache Software Foundation. All rights
012: * reserved.
013: *
014: * Redistribution and use in source and binary forms, with or without
015: * modification, are permitted provided that the following conditions
016: * are met:
017: *
018: * 1. Redistributions of source code must retain the above copyright
019: * notice, this list of conditions and the following disclaimer.
020: *
021: * 2. Redistributions in binary form must reproduce the above copyright
022: * notice, this list of conditions and the following disclaimer in
023: * the documentation and/or other materials provided with the
024: * distribution.
025: *
026: * 3. The end-user documentation included with the redistribution, if
027: * any, must include the following acknowlegement:
028: * "This product includes software developed by the
029: * Apache Software Foundation (http://www.apache.org/)."
030: * Alternately, this acknowlegement may appear in the software itself,
031: * if and wherever such third-party acknowlegements normally appear.
032: *
033: * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
034: * Foundation" must not be used to endorse or promote products derived
035: * from this software without prior written permission. For written
036: * permission, please contact apache@apache.org.
037: *
038: * 5. Products derived from this software may not be called "Apache"
039: * nor may "Apache" appear in their names without prior written
040: * permission of the Apache Group.
041: *
042: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
043: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
044: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
045: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
046: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
047: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
048: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
049: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
050: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
051: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
052: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
053: * SUCH DAMAGE.
054: * ====================================================================
055: *
056: * This software consists of voluntary contributions made by many
057: * individuals on behalf of the Apache Software Foundation. For more
058: * information on the Apache Software Foundation, please see
059: * <http://www.apache.org/>.
060: *
061: * [Additional notices, if required by prior licensing conditions]
062: *
063: */
064:
065: package org.apache.catalina.ssi;
066:
067: import java.io.BufferedInputStream;
068: import java.io.BufferedOutputStream;
069: import java.io.BufferedReader;
070: import java.io.BufferedWriter;
071: import java.io.IOException;
072: import java.io.InputStream;
073: import java.io.InputStreamReader;
074: import java.io.OutputStreamWriter;
075: import java.io.PrintWriter;
076: import java.io.Reader;
077: import java.io.StringWriter;
078: import java.io.Writer;
079: import java.net.MalformedURLException;
080: import java.net.URL;
081: import javax.servlet.ServletException;
082: import javax.servlet.ServletContext;
083: import javax.servlet.ServletOutputStream;
084: import javax.servlet.RequestDispatcher;
085: import org.apache.catalina.util.IOTools;
086:
087: /**
088: * Implements the Server-side #exec command
089: *
090: * @author Bip Thelin
091: * @author Amy Roh
092: * @author Dan Sandberg
093: * @version $Revision: 1.1 $, $Date: 2002/05/24 04:38:58 $
094: *
095: */
096: public class SSIExec implements SSICommand {
097: protected SSIInclude ssiInclude = new SSIInclude();
098: protected final static int BUFFER_SIZE = 1024;
099:
100: /**
101: * @see SSICommand
102: */
103: public void process(SSIMediator ssiMediator, String[] paramNames,
104: String[] paramValues, PrintWriter writer) {
105:
106: String configErrMsg = ssiMediator.getConfigErrMsg();
107: String paramName = paramNames[0];
108: String paramValue = paramValues[0];
109:
110: if (paramName.equalsIgnoreCase("cgi")) {
111: ssiInclude.process(ssiMediator, new String[] { "virtual" },
112: new String[] { paramValue }, writer);
113: } else if (paramName.equalsIgnoreCase("cmd")) {
114: boolean foundProgram = false;
115: try {
116: Runtime rt = Runtime.getRuntime();
117: Process proc = rt.exec(paramValue);
118: foundProgram = true;
119:
120: BufferedReader stdOutReader = new BufferedReader(
121: new InputStreamReader(proc.getInputStream()));
122: BufferedReader stdErrReader = new BufferedReader(
123: new InputStreamReader(proc.getErrorStream()));
124:
125: char[] buf = new char[BUFFER_SIZE];
126: IOTools.flow(stdErrReader, writer, buf);
127: IOTools.flow(stdOutReader, writer, buf);
128: proc.waitFor();
129: } catch (InterruptedException e) {
130: ssiMediator.log("Couldn't exec file: " + paramValue, e);
131: writer.write(configErrMsg);
132: } catch (IOException e) {
133: if (!foundProgram) {
134: //apache doesn't output an error message if it can't find a program
135: }
136: ssiMediator.log("Couldn't exec file: " + paramValue, e);
137: }
138: }
139: }
140: }
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