Dépôt officiel du code source de l'ERP OpenConcerto

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 2011-2019 OpenConcerto, by ILM Informatique. All rights reserved.
 * 
 * The contents of this file are subject to the terms of the GNU General Public License Version 3
 * only ("GPL"). You may not use this file except in compliance with the License. You can obtain a
 * copy of the License at http://www.gnu.org/licenses/gpl-3.0.html See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each file.
 */
 
 package org.openconcerto.erp.config;

import org.openconcerto.utils.Base64;
import org.openconcerto.utils.FileUtils;
import org.openconcerto.utils.JImage;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Properties;

import javax.imageio.ImageIO;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;

import net.minidev.json.JSONObject;
import net.minidev.json.parser.JSONParser;

public class NewsChecker {
    public static class DateHash {
        Long t;
        String h;

        public DateHash(Long time, String hash) {
            this.t = time;
            this.h = hash;
        }

    }

    public static void check(Properties pTOS, File confDir, boolean useH2) {
        if (!confDir.exists()) {
            System.out.println("missing conf dir " + confDir.getAbsolutePath());
        }
        final boolean hasCloud = pTOS.getProperty("hasCloud", "false").equals("true");
        final int launchCounter = Integer.parseInt(pTOS.getProperty("launchCounter", "0"));
        Thread t = new Thread(new Runnable() {

            @Override
            public void run() {
                try {

                    File historyFile = new File(confDir, "history.log");
                    if (!historyFile.exists()) {
                        FileUtils.writeUTF8("", historyFile);
                    }
                    List<DateHash> history = new ArrayList<>();
                    long today = System.currentTimeMillis();
                    // 60 days
                    long maxDate = today - 60 * 24 * 3600 * 1000;
                    try (BufferedReader reader = new BufferedReader(new FileReader(historyFile))) {
                        String line = reader.readLine();
                        while (line != null) {
                            Long t = Long.parseLong(line);
                            String h = reader.readLine();
                            if (t > maxDate) {
                                history.add(new DateHash(t, h));
                            }
                            line = reader.readLine();
                        }
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    byte[] data = download("https://www.ilm-informatique.fr/openconcerto/ocnews");
                    MessageDigest digester = MessageDigest.getInstance("SHA-256");
                    digester.update(data);
                    String h = Base64.encodeBytes(digester.digest());
                    boolean found = false;
                    for (DateHash d : history) {
                        if (d.h.equals(h)) {
                            found = true;
                            break;
                        }
                    }
                    DateHash newLine = new DateHash(System.currentTimeMillis(), h);
                    history.add(newLine);
                    if (!found) {
                        final JSONParser jsonParser = new JSONParser(JSONParser.MODE_PERMISSIVE);
                        final String jsonString = new String(data, StandardCharsets.UTF_8);
                        JSONObject obj = (JSONObject) jsonParser.parse(jsonString);

                        String title = obj.getOrDefault("title", "").toString();
                        String text = obj.getOrDefault("text", "").toString();
                        String imageURL = obj.getOrDefault("image", "").toString();
                        String end = obj.getOrDefault("end", "1/12/2133").toString();
                        SimpleDateFormat df = new SimpleDateFormat("dd/MM/yyyy");
                        Date dateEnd = df.parse(end);
                        boolean includeCloud = (Boolean) obj.getOrDefault("include-cloud", Boolean.FALSE);
                        boolean includeMono = (Boolean) obj.getOrDefault("include-mono", Boolean.FALSE);
                        boolean includeMulti = (Boolean) obj.getOrDefault("include-multi", Boolean.FALSE);
                        boolean isMono = useH2;
                        boolean isMulti = !hasCloud && !isMono;
                        int minLaunch = (Integer) obj.getOrDefault("min-launch", 0);
                        if (launchCounter < minLaunch) {
                            System.out.println("launch counter too small (" + launchCounter + ")");
                        } else {
                            if (dateEnd.before(new Date())) {
                                System.out.println("outdated news");
                            } else {
                                if (includeCloud && hasCloud || includeMono && isMono || includeMulti && isMulti) {
                                    BufferedImage image = null;
                                    if (imageURL != null && imageURL.length() > 5) {
                                        try {
                                            byte[] imageData = download(imageURL);
                                            image = ImageIO.read(new ByteArrayInputStream(imageData));
                                        } catch (Exception e) {
                                            e.printStackTrace();
                                        }
                                    }
                                    showFrame(title, text, image, history, historyFile);
                                } else {
                                    System.out.println("news not relevant");
                                }

                            }
                        }

                    } else {
                        System.out.println("news already displayed");
                    }

                } catch (Exception e) {
                    e.printStackTrace();
                }

            }

            private byte[] download(String u) throws MalformedURLException, IOException {
                URL url = new URL(u);
                URLConnection connection = url.openConnection();
                InputStream is = connection.getInputStream();
                ByteArrayOutputStream out = new ByteArrayOutputStream();
                byte[] buffer = new byte[2048];
                int length = 0;
                while ((length = is.read(buffer)) != -1) {
                    out.write(buffer, 0, length);
                }
                is.close();
                out.close();
                byte[] data = out.toByteArray();
                return data;
            }
        });
        t.setPriority(Thread.MIN_PRIORITY);
        t.setName("News checker");
        t.setDaemon(true);
        t.start();

    }

    protected static void showFrame(String title, String text, BufferedImage image, List<DateHash> history, File historyFile) {
        SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                JFrame f = new JFrame();
                f.setIconImages(Gestion.getFrameIcon());
                f.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
                if (title != null && !title.isEmpty()) {
                    f.setTitle(title);
                } else {
                    f.setTitle("OpenConcerto");
                }
                JPanel p = new JPanel();
                p.setBackground(Color.WHITE);
                p.setLayout(new BorderLayout());
                if (image != null) {
                    p.add(new JImage(image), BorderLayout.PAGE_START);
                }
                if (text != null && !text.isEmpty()) {
                    final String t = text.replace("\\n", "\n");
                    final JTextArea ta = new JTextArea(t);
                    ta.setBorder(BorderFactory.createLineBorder(Color.WHITE, 10));
                    Font font = new JTextField("hello").getFont();
                    font = font.deriveFont(font.getSize() + 2f);
                    ta.setFont(font);
                    ta.setEditable(false);

                    p.add(ta, BorderLayout.CENTER);
                }
                final JButton bOk = new JButton();
                bOk.setEnabled(false);
                Thread t = new Thread(new Runnable() {

                    @Override
                    public void run() {
                        for (int i = 10; i > 0; i--) {

                            final int c = i;
                            SwingUtilities.invokeLater(new Runnable() {

                                @Override
                                public void run() {
                                    bOk.setText(String.valueOf(c) + "s");
                                }
                            });
                            try {
                                Thread.sleep(1000);
                            } catch (InterruptedException e) {
                                // Nothing
                            }
                        }
                        SwingUtilities.invokeLater(new Runnable() {

                            @Override
                            public void run() {
                                bOk.setText("OK");
                                bOk.setEnabled(true);
                                f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
                            }
                        });
                    }
                });
                t.start();
                bOk.addActionListener(new ActionListener() {

                    @Override
                    public void actionPerformed(ActionEvent e) {
                        // save history
                        if (history != null) {
                            try (FileOutputStream fOp = new FileOutputStream(historyFile)) {
                                PrintStream prt = new PrintStream(new BufferedOutputStream(fOp));
                                for (DateHash d : history) {
                                    prt.println(d.t);
                                    prt.println(d.h);
                                }
                                prt.close();
                            } catch (IOException e1) {
                                e1.printStackTrace();
                            }
                            System.out.println(historyFile.getAbsolutePath() + " saved");
                        }
                        // close
                        f.dispose();

                    }
                });

                final FlowLayout flowLayout = new FlowLayout(FlowLayout.RIGHT);
                final JPanel pButtons = new JPanel();
                pButtons.setLayout(flowLayout);
                pButtons.setOpaque(false);
                pButtons.add(bOk);
                p.add(pButtons, BorderLayout.PAGE_END);
                f.setContentPane(p);
                f.pack();
                f.setMinimumSize(new Dimension(300, 400));
                f.setLocationRelativeTo(null);
                f.setVisible(true);
            }

        });

    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                    showFrame("Hello", "world\\nhhhf the window is enlarged or the center and the bottom.", null, null, null);
                    // showFrame("Hello", "world\\nhhh",
                    // ImageIO.read(this.getClass().getResourceAsStream("256.png")), null);
                } catch (Exception e) {
                    e.printStackTrace();
                }

            }
        });
    }
}