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PHPJavaBridge server (soluble fork)
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/*-*- mode: Java; tab-width:8 -*-*/

package io.soluble.pjb.script;

/*
 * Copyright (C) 2003-2007 Jost Boekemeier
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.Writer;
import java.util.Map;

import io.soluble.pjb.bridge.ILogger;
import io.soluble.pjb.bridge.Util;
import io.soluble.pjb.bridge.http.HeaderParser;
import io.soluble.pjb.bridge.http.OutputStreamFactory;

/**
 * This class can be used to run a PHP CGI binary. Used only when
 * running local php scripts.  To allocate and invoke remote scripts
 * please use a HttpProxy and a URLReader instead.
 *
 * @author jostb
 * @see io.soluble.pjb.bridge.http.HttpServer
 * @see io.soluble.pjb.script.URLReader
 * @see io.soluble.pjb.script.HttpProxy
 */

public class CGIRunner extends Continuation {

    protected Reader reader;

    protected CGIRunner(Reader reader, Map env, OutputStream out,
                        OutputStream err, HeaderParser headerParser,
                        ResultProxy resultProxy, ILogger logger) {
        super(env, out, err, headerParser, resultProxy);
        this.reader = reader;
    }

    private Writer writer;

    protected void doRun() throws IOException, Util.Process.PhpException {
        Util.Process proc = Util.ProcessWithErrorHandler.start(new String[]{null}, false, null, null, null, null, env, true, true, err);

        InputStream natIn = null;
        try {
            natIn = proc.getInputStream();
            OutputStream natOut = proc.getOutputStream();
            writer = new BufferedWriter(new OutputStreamWriter(natOut));

            (new Thread() { // write the script asynchronously to avoid deadlock
                public void doRun() throws IOException {
                    char[] cbuf = new char[Util.BUF_SIZE];
                    int n;
                    while ((n = reader.read(cbuf)) != -1) {
                        //System.err.println("SCRIPT:::"+new String(cbuf, 0, n));
                        writer.write(cbuf, 0, n);
                    }
                }

                public void run() {
                    try {
                        doRun();
                    } catch (IOException e) {
                        Util.printStackTrace(e);
                    } finally {
                        try {
                            writer.close();
                        } catch (IOException ex) {
                    /*ignore*/
                        }
                    }
                }
            }).start();

            byte[] buf = new byte[Util.BUF_SIZE];
            HeaderParser.parseBody(buf, natIn, new OutputStreamFactory() {
                public OutputStream getOutputStream() throws IOException {
                    return out;
                }
            }, headerParser);
            proc.waitFor();
            resultProxy.setResult(proc.exitValue());
        } catch (IOException e) {
            Util.printStackTrace(e);
            throw e;
        } catch (InterruptedException e) {
        /*ignore*/
        } finally {
            if (natIn != null) try {
                natIn.close();
            } catch (IOException ex) {/*ignore*/}
            try {
                proc.destroy();
            } catch (Exception e) {
                Util.printStackTrace(e);
            }
        }

        proc.checkError();
    }
}