com.github.pemapmodder.pocketminegui.utils.Utils.java Source code

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Here is the source code for com.github.pemapmodder.pocketminegui.utils.Utils.java

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package com.github.pemapmodder.pocketminegui.utils;

/*
 * This file is part of PocketMine-GUI.
 *
 * PocketMine-GUI is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * PocketMine-GUI is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with PocketMine-GUI.  If not, see <http://www.gnu.org/licenses/>.
 */

import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveInputStream;
import org.apache.commons.compress.compressors.gzip.GzipCompressorInputStream;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

import static com.github.pemapmodder.pocketminegui.utils.Utils.OperatingSystem.LINUX;
import static com.github.pemapmodder.pocketminegui.utils.Utils.OperatingSystem.MAC;
import static com.github.pemapmodder.pocketminegui.utils.Utils.OperatingSystem.WINDOWS;

public class Utils {
    private static OperatingSystem os = null;

    public static interface InstallProgressReporter {
        public void report(double fraction);

        public void completed(File result);

        public void errored();
    }

    public static File installPHP(File home, InstallProgressReporter progress) {
        if (getOS() == WINDOWS) {
            return installWindowsPHP(home, progress);
        } else if (getOS() == MAC) {
            return installMacPHP(home, progress);
        } else {
            return installLinuxPHP(home, progress);
        }
    }

    private static File installLinuxPHP(File home, InstallProgressReporter progress) {
        progress.report(0.0);
        File bin = new File(home, ".pmgui_tmp_pm_linux_installer");
        bin.mkdirs();
        try {
            InputStream get = new URL("http", "get.pocketmine.net", "").openStream();
            Process bash = new ProcessBuilder("bash -s - -v development").directory(bin)
                    .redirectOutput(ProcessBuilder.Redirect.INHERIT).redirectError(ProcessBuilder.Redirect.INHERIT)
                    .start();
            progress.report(0.25);
            byte[] bytes = IOUtils.toByteArray(get);
            progress.report(0.5);
            bash.getOutputStream().write(bytes);
            int result = bash.waitFor();
            progress.report(0.75);
            if (result == 0) {
                File out = new File(bin, "bin");
                FileUtils.copyDirectory(out, new File(home, "bin"));
                FileUtils.deleteDirectory(bin);
                File output = new File(out, "php7/bin/php");
                progress.completed(output);
                return output;
            } else {
                FileUtils.deleteDirectory(bin);
                return null;
            }
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
            try {
                FileUtils.deleteDirectory(bin);
            } catch (IOException e1) {
            }
            return null;
        }
    }

    private static File installMacPHP(File home, InstallProgressReporter progress) {
        return installLinuxPHP(home, progress);
    }

    private static File installWindowsPHP(File home, InstallProgressReporter progress) {
        progress.report(0.0);
        try {
            String link = System.getProperty("os.arch").contains("64")
                    ? "https://bintray.com/artifact/download/pocketmine/PocketMine/PHP_7.0.3_x64_Windows.tar.gz"
                    : "https://bintray.com/artifact/download/pocketmine/PocketMine/PHP_7.0.3_x86_Windows.tar.gz";
            URL url = new URL(link);
            InputStream gz = url.openStream();
            GzipCompressorInputStream tar = new GzipCompressorInputStream(gz);
            TarArchiveInputStream is = new TarArchiveInputStream(tar);
            TarArchiveEntry entry;
            while ((entry = is.getNextTarEntry()) != null) {
                if (!entry.isDirectory()) {
                    String name = entry.getName();
                    byte[] buffer = new byte[(int) entry.getSize()];
                    IOUtils.read(is, buffer);
                    File real = new File(home, name);
                    real.getParentFile().mkdirs();
                    IOUtils.write(buffer, new FileOutputStream(real));
                }
            }
            File output = new File(home, "bin/php/php.exe");
            progress.completed(output);
            return output;
        } catch (IOException e) {
            e.printStackTrace();
            progress.errored();
            return null;
        }
    }

    public static OperatingSystem getOS() {
        if (os != null) {
            return os;
        }
        String osName = System.getProperty("os.name").toLowerCase();
        if (osName.contains("win")) {
            return os = WINDOWS;
        }
        if (osName.contains("mac")) {
            return os = MAC;
        }
        return os = LINUX;
    }

    public static boolean validatePhpBinaries(File phpBinaries) {
        String output = exec(phpBinaries.getAbsolutePath(), "-v");
        if (output != null && output.startsWith("PHP ") && output.contains("The PHP Group")
                && output.contains("(cli)")) {
            String version = output.substring(4, output.indexOf(" (cli)"));
            output = exec(phpBinaries.getAbsolutePath(), "-r",
                    "echo (extension_loaded(\"pthreads\") and extension_loaded(\"yaml\")) ? \"ok\" : \"ng\";");
            return "ok".equals(output);
        }
        return false;
    }

    public static String exec(String... cmdLine) {
        try {
            Process process = new ProcessBuilder(cmdLine).start();
            process.waitFor();
            return new String(IOUtils.toByteArray(process.getInputStream()));
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
        return null;
    }

    public enum OperatingSystem {
        WINDOWS, MAC, LINUX
    }
}