diff --git a/Kasse/.classpath b/Kasse/.classpath new file mode 100644 index 0000000..5e1c3f6 --- /dev/null +++ b/Kasse/.classpath @@ -0,0 +1,10 @@ + + + + + + + + + + diff --git a/Kasse/.project b/Kasse/.project new file mode 100644 index 0000000..9c5f492 --- /dev/null +++ b/Kasse/.project @@ -0,0 +1,17 @@ + + + Sven Kasse Aktuell + + + + + + org.eclipse.jdt.core.javabuilder + + + + + + org.eclipse.jdt.core.javanature + + diff --git a/Kasse/.settings/org.eclipse.jdt.core.prefs b/Kasse/.settings/org.eclipse.jdt.core.prefs new file mode 100644 index 0000000..bb35fa0 --- /dev/null +++ b/Kasse/.settings/org.eclipse.jdt.core.prefs @@ -0,0 +1,11 @@ +eclipse.preferences.version=1 +org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled +org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8 +org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve +org.eclipse.jdt.core.compiler.compliance=1.8 +org.eclipse.jdt.core.compiler.debug.lineNumber=generate +org.eclipse.jdt.core.compiler.debug.localVariable=generate +org.eclipse.jdt.core.compiler.debug.sourceFile=generate +org.eclipse.jdt.core.compiler.problem.assertIdentifier=error +org.eclipse.jdt.core.compiler.problem.enumIdentifier=error +org.eclipse.jdt.core.compiler.source=1.8 diff --git a/Kasse/bin/BorderInformation.class b/Kasse/bin/BorderInformation.class new file mode 100644 index 0000000..c3cbf32 Binary files /dev/null and b/Kasse/bin/BorderInformation.class differ diff --git a/Kasse/bin/Helper.class b/Kasse/bin/Helper.class new file mode 100644 index 0000000..84cfe78 Binary files /dev/null and b/Kasse/bin/Helper.class differ diff --git a/Kasse/bin/MainFrame$1.class b/Kasse/bin/MainFrame$1.class new file mode 100644 index 0000000..b7bdd60 Binary files /dev/null and b/Kasse/bin/MainFrame$1.class differ diff --git a/Kasse/bin/MainFrame$10.class b/Kasse/bin/MainFrame$10.class new file mode 100644 index 0000000..7bdfea9 Binary files /dev/null and b/Kasse/bin/MainFrame$10.class 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b/Kasse/bin/org/mindrot/BCrypt.class differ diff --git a/Kasse/miglayout-src.zip b/Kasse/miglayout-src.zip new file mode 100644 index 0000000..9c51c32 Binary files /dev/null and b/Kasse/miglayout-src.zip differ diff --git a/Kasse/miglayout15-swing.jar b/Kasse/miglayout15-swing.jar new file mode 100644 index 0000000..2d6a62f Binary files /dev/null and b/Kasse/miglayout15-swing.jar differ diff --git a/Kasse/mysql-connector-java-5.1.37-bin.jar b/Kasse/mysql-connector-java-5.1.37-bin.jar new file mode 100644 index 0000000..465af67 Binary files /dev/null and b/Kasse/mysql-connector-java-5.1.37-bin.jar differ diff --git a/Kasse/src/BorderInformation.java b/Kasse/src/BorderInformation.java new file mode 100644 index 0000000..eb6049b --- /dev/null +++ b/Kasse/src/BorderInformation.java @@ -0,0 +1,11 @@ +public class BorderInformation { + // Randstärke in Pixeln + public float BorderWidth; + // Erstes schwarzes Pixel in der linken oberen Ecke + public Pair firstBlackPixel; + + public BorderInformation(float width, Pair firstBlack) { + BorderWidth = width; + firstBlackPixel = firstBlack; + } +} diff --git a/Kasse/src/Helper.java b/Kasse/src/Helper.java new file mode 100644 index 0000000..f39d023 --- /dev/null +++ b/Kasse/src/Helper.java @@ -0,0 +1,98 @@ +import java.sql.*; +import java.util.concurrent.SynchronousQueue; + +import javax.swing.table.DefaultTableModel; + +public class Helper { + + Connection con; + Statement stmt; + ResultSet rs; + ResultSetMetaData rsmd; + + //baut verbindung auf + public void connect() { + try { + con = DriverManager.getConnection("jdbc:mysql://102-012/", "intabi19", "hallo"); + System.out.println("connected"); + } catch (SQLException e) { + System.out.println(e); + } + } + + //baut verbindung auf zur Auswahl + public void connect(String databaseName) { + try { + con = DriverManager.getConnection("jdbc:mysql://102-012/"+ databaseName, "intabi19", "hallo"); + System.out.println("connected"); + } catch (SQLException e) { + System.out.println(e); + } + } + + public void listTables() + { + try { + rs = con.getMetaData().getTables(null, null, null, null); + while (rs.next()) + { + System.out.println(rs.getString(3)); + } + } catch (SQLException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + } + public void passSQL(String sql) + { + try { + stmt = con.createStatement(); + stmt.execute(sql); + } catch (SQLException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + } + + public DefaultTableModel getTableModel(String sqlString) { + DefaultTableModel model = new DefaultTableModel(); + + try { + // wichtig nicht vergessen ohne diese Aussage gibts nen Fehler(Nullpointer) + stmt = con.createStatement(); + // schickt SQL Abfrage ab und speichert im Objekt rs + rs = stmt.executeQuery(sqlString); + // liest MetaDaten aus und speichert im Objekt rsmd + rsmd = rs.getMetaData(); + // Breite der Tabelle + int colCount = rsmd.getColumnCount(); + + // Ein String Array hat die Länge der Breite der Tabelle + String colData[] = new String[colCount]; + // Läuft einmal die Breite ab und fügt die Spaltennamen zum Array hinzu + for (int i = 1; i <= colCount; i++) { + colData[i - 1] = rsmd.getColumnLabel(i); + } + // setzt die Spaltennamen im DefaultTableModel + model.setColumnIdentifiers(colData); + + // Ein String Array hat die Länge der Breite der Tabelle + String rowData[] = new String[colCount]; + //Läuft solange es noch weitere Zeilen im rs gibt + while (rs.next()) { + // Läuft jede Spalte ab + for (int i = 0; i < colCount; i++) { + //trägt Werte der spalte in den Array ein überschreibt vorherige Werte + rowData[i] = rs.getString(i+1); + } + // fügt komplette Zeile dem DefaultTableModel hinzu + model.addRow(rowData); + } + } catch (SQLException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + //gibt fertiges DefaultTableModel zurück + return model; + } +} diff --git a/Kasse/src/MainFrame.java b/Kasse/src/MainFrame.java new file mode 100644 index 0000000..eefec3b --- /dev/null +++ b/Kasse/src/MainFrame.java @@ -0,0 +1,918 @@ +import java.awt.BorderLayout; +import java.awt.EventQueue; + +import javax.swing.JFrame; +import javax.swing.JPanel; +import javax.swing.border.EmptyBorder; +import javax.swing.JMenuBar; +import javax.swing.JOptionPane; +import javax.swing.JMenu; +import javax.swing.DefaultListSelectionModel; +import javax.swing.JButton; +import javax.swing.JComboBox; +import javax.swing.JFileChooser; +import javax.swing.JScrollPane; +import javax.swing.JTextField; +import javax.swing.ListSelectionModel; +import javax.swing.JLabel; +import java.awt.Font; +import java.awt.Label; + +import javax.swing.JTextArea; +import java.awt.Color; +import java.awt.Component; + +import javax.swing.JProgressBar; +import javax.swing.JList; +import javax.swing.JTabbedPane; +import javax.swing.JTable; +import javax.swing.border.LineBorder; +import javax.swing.event.ListSelectionEvent; +import javax.swing.event.ListSelectionListener; +import javax.swing.table.DefaultTableModel; +import javax.swing.table.TableModel; + +import lib.SQLConnection; + +import javax.swing.JPasswordField; +import java.awt.event.ActionListener; +import java.awt.event.ComponentEvent; +import java.awt.event.ComponentListener; +import java.awt.event.ActionEvent; +import javax.swing.SwingConstants; +import java.awt.event.MouseAdapter; +import java.awt.event.MouseEvent; +import java.io.File; +import java.io.IOException; +import java.sql.SQLException; +import java.time.LocalDate; +import java.time.temporal.IsoFields; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collections; +import java.util.Comparator; +import java.util.HashMap; + +import javax.swing.event.CaretListener; +import javax.swing.event.CaretEvent; +import java.awt.GridBagLayout; +import java.awt.GridBagConstraints; +import net.miginfocom.swing.MigLayout; +import javax.swing.JTextPane; + +public class MainFrame extends JFrame { + + private JPanel contentPane; + private JTextField textField; + private JTextField textField_1; + private JTable table; + private JTextField textField_2; + private JTextField textField_3; + private JPasswordField textField_4; + private JTable table_2; + private float Preis = 0.0F; + DefaultTableModel model; + JScrollPane scrollPane_1 = new JScrollPane(); + private JTextField txtProduktID; + private JTextField txtProduktName; + private JTextField txtPreis; + JScrollPane scrollPane = new JScrollPane(); + + JTextArea textArea_AX = new JTextArea(); + JTextArea textArea_BX = new JTextArea(); + JTextArea textArea_CX = new JTextArea(); + JTextArea textArea_AY = new JTextArea(); + JTextArea textArea_BY = new JTextArea(); + JTextArea textArea_CY = new JTextArea(); + JTextArea textArea_AZ = new JTextArea(); + JTextArea textArea_BZ = new JTextArea(); + JTextArea textArea_CZ = new JTextArea(); + + JFrame _this = this; + + /** + * Launch the application. + */ + public static void main(String[] args) { + EventQueue.invokeLater(new Runnable() { + public void run() { + try { + MainFrame frame = new MainFrame(); + frame.setVisible(true); + } catch (Exception e) { + e.printStackTrace(); + } + } + }); + } + + /** + * Create the frame. + */ + public MainFrame() { + setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); + setBounds(100, 100, 882, 623); + contentPane = new JPanel(); + contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); + setContentPane(contentPane); + contentPane.setLayout(null); + + SQLConnection db = new SQLConnection(); + + JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.TOP); + tabbedPane.addMouseListener(new MouseAdapter() { + @Override + public void mouseClicked(MouseEvent arg0) { + textArea_AX.setText(""); + textArea_BX.setText(""); + textArea_CX.setText(""); + textArea_AY.setText(""); + textArea_BY.setText(""); + textArea_CY.setText(""); + textArea_AZ.setText(""); + textArea_BZ.setText(""); + textArea_CZ.setText(""); + + if (tabbedPane.getSelectedIndex() != 2) + return; + + // ABC-Analyse ausführen + SQLConnection db = new SQLConnection("102-012/sven"); + + + HashMap abcxyz = new HashMap<>(); + + ArrayList> produkte = db.queryToMap("SELECT ID FROM t_artikel"); + for (HashMap produkt : produkte) { + int produktID = Integer.parseInt(produkt.get("ID")); + + Float verkauf = 0f; + + ArrayList> verkaufswerte = db.queryToMap( + "SELECT Menge, Verkaufspreis, Woche FROM t_statistik WHERE f_Artikel_ID = " + produktID); + + for (HashMap wert : verkaufswerte) { + float summe = Integer.parseInt(wert.get("Menge")) * Float.parseFloat(wert.get("Verkaufspreis")); + verkauf += summe; + } + + abcxyz.put(produktID, verkauf); + } + + // + // Funtkion implementieren ids durch namern ersetzen + // + + ArrayList sortiert = new ArrayList<>(abcxyz.keySet()); + sortiert.sort((a, b) -> Float.compare(abcxyz.get(b), abcxyz.get(a))); + + // Gesamtumsatz errechnen + float gesamtUmsatz = 0; + + for (int i = 0; i < abcxyz.keySet().size(); i++) { + gesamtUmsatz += abcxyz.get(abcxyz.keySet().toArray()[i]); + } + + System.out.println(gesamtUmsatz); + + // Prozentualen Anteil für jedes Produkt ausrechnen + HashMap prozentualerAnteil = new HashMap<>(); + + for (int i = 0; i < abcxyz.keySet().size(); i++) { + Float ant = abcxyz.get(abcxyz.keySet().toArray()[i]).floatValue() / gesamtUmsatz; + prozentualerAnteil.put((Integer) abcxyz.keySet().toArray()[i], ant); + } + + /*int AlleProdukte = 50; + int[] VerkaufteMenge = new int[AlleProdukte]; + ArrayList> Verkaufte_Artikel; + + /*for(int i = 0; i < Verkaufte_Artikel.size(); i++) + { + //VerkaufteMenge += Integer.parseInt(Verkaufte_Artikel.get(i).get("Menge")); + }// + + + int ProduktMenge = 0; + float[] Verkauft_Durchschnitt = new float[AlleProdukte]; + + for(int i = 1; i < AlleProdukte; i++) + { + ArrayList> Artikel_sortiert = db.queryToMap("SELECT * FROM `t_statistik` WHERE `f_Artikel_ID` = " + i); + if(Artikel_sortiert.size() > 0) + { + ProduktMenge++; + } + } + + VerkaufteMenge / ProduktMenge; + + */ + + int wochen = 48; + + HashMap Varianzkoeffizienten = new HashMap<>(); + + for (HashMap produkt : produkte) { + int produktID = Integer.parseInt(produkt.get("ID")); + + ArrayList> verkauf = db.queryToMap("SELECT * FROM t_statistik WHERE f_Artikel_ID = " + produktID + " AND Woche <= 48"); + + double summeVerkaufteMenge = 0; + + for (HashMap elem : verkauf) { + summeVerkaufteMenge += Double.parseDouble(elem.get("Menge")); + } + + double Erwartungswert = summeVerkaufteMenge / wochen; + + double summeStichproben = 0; + + for (HashMap elem : verkauf) { + double menge = Double.parseDouble(elem.get("Menge")); + summeStichproben += Math.pow(menge - Erwartungswert, 2); + } + + double Standardabweichung = Math.sqrt(summeStichproben / wochen); + + Varianzkoeffizienten.put(produktID, Standardabweichung / Erwartungswert); + } + + // Auswerten + double valABC = 0; + double valXYZ = 0; + for (Integer produktID : prozentualerAnteil.keySet()) { + + valABC += prozentualerAnteil.get(produktID); + valXYZ = Varianzkoeffizienten.get(produktID); + + String name = db.queryToMap("SELECT Name FROM t_artikel WHERE ID = " + produktID).get(0).get("Name"); + + if (valABC <= 0.8f) { + if (valXYZ <= 0.5) { + textArea_AX.append(name + "\n"); + } else if (valXYZ <= 1.1) { + textArea_AY.append(name + "\n"); + } else { + textArea_AZ.append(name + "\n"); + } + } else if (valABC > 0.8f && valABC <= 0.9) { + if (valXYZ <= 0.5) { + textArea_BX.append(name + "\n"); + } else if (valXYZ <= 1.1) { + textArea_BY.append(name + "\n"); + } else { + textArea_BZ.append(name + "\n"); + } + } else { + if (valXYZ <= 0.5) { + textArea_CX.append(name + "\n"); + } else if (valXYZ <= 1.1) { + textArea_CY.append(name + "\n"); + } else { + textArea_CZ.append(name + "\n"); + } + } + } + + } + }); + tabbedPane.setBounds(10, 11, 846, 563); + contentPane.add(tabbedPane); + + String comboBoxWoche[] = { "Woche", "1", "2", "3", "4", }; + + String a = "Januar"; + String b = "Februar"; + String c = "März"; + String d = "April"; + String e = "Mai"; + String f = "Juni"; + String g = "Juli"; + String o = "August"; + String i = "September"; + String j = "Oktober"; + String k = "November"; + String l = "Dezember"; + + String comboBoxMonate[] = { "Monat", a, b, c, d, e, f, g, o, i, j, k, l, }; + Helper h = new Helper(); + h.connect("sven"); + + JPanel panel_1 = new JPanel(); + tabbedPane.addTab(" Anmelden / Abmelden ", null, panel_1, null); + panel_1.setLayout(null); + + JLabel lblBenutzername = new JLabel("Benutzername:"); + lblBenutzername.setBounds(123, 134, 93, 14); + panel_1.add(lblBenutzername); + + textField_1 = new JTextField(); + textField_1.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent arg0) { + + Helper g = new Helper(); + g.connect("sven"); + + String SQL = "SELECT Name FROM `t_benutzer` WHERE Name = '" + textField_1.getText() + "'"; + + DefaultTableModel model = g.getTableModel(SQL); + if (model.getRowCount() == 1) { + textField_4.setEnabled(true); + } + } + }); + textField_1.setBounds(226, 131, 110, 20); + panel_1.add(textField_1); + textField_1.setColumns(10); + + JLabel lblPasswort = new JLabel("Passwort:"); + lblPasswort.setBounds(149, 159, 67, 14); + panel_1.add(lblPasswort); + + JButton btnBesttigen = new JButton("Best\u00E4tigen"); + btnBesttigen.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + + + Helper g = new Helper(); + g.connect("sven"); + String SQL = "SELECT Passwort FROM `t_benutzer` WHERE Name = '" + textField_1.getText() + "'"; + + DefaultTableModel model = g.getTableModel(SQL); + if(model.getRowCount() == 1) { + String hash = model.getValueAt(0, 0).toString(); + + // BCrypt Format Backport. Versionen Prefix Änderung + if(hash.toCharArray()[2] == 'y') { + char[] hashArray = hash.toCharArray(); + hashArray[2] = 'a'; + hash = String.valueOf(hashArray); + } + + // wenn der gehashte Wert in der Datenbank mit dem textArea_BX.append(prozentualerAnteil.get(prozentualerAnteil.keySet().toArray()[i]).toString() + "\n"); + + if(org.mindrot.BCrypt.checkpw(String.valueOf(textField_4.getPassword()), hash)) { + tabbedPane.setVisible(true); + + tabbedPane.setEnabledAt(1, true); + tabbedPane.setEnabledAt(2, true); + tabbedPane.setSelectedIndex(1); + } + } + + } + }); + btnBesttigen.setBounds(123, 193, 213, 47); + panel_1.add(btnBesttigen); + + textField_4 = new JPasswordField(); + textField_4.setEnabled(false); + textField_4.setColumns(10); + textField_4.setBounds(226, 162, 110, 20); + panel_1.add(textField_4); + model = new DefaultTableModel(); + model.setColumnIdentifiers(new String[] { "ID", "Menge", "Preis", "SVEN Bon" }); + + JPanel panel = new JPanel(); + tabbedPane.addTab(" Kasse ", null, panel, null); + tabbedPane.setEnabledAt(1, false); + + JLabel label = new JLabel("0,00\u20AC"); + label.setBounds(571, 38, 142, 14); + panel.add(label); + + JButton btnTotal = new JButton("Bezahlen"); + btnTotal.setBounds(525, 424, 188, 82); + btnTotal.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + int rowCount = model.getRowCount(); + + String Woche = textField_3.getText(); + + if (Woche.isEmpty() == false) { + + for (int r = 0; r < rowCount; r++) { + String ProduktID = (String) model.getValueAt(r, 0); + String Menge = (String) model.getValueAt(r, 1); + String Einzelpreis = (String) model.getValueAt(r, 2); + + db.execute("INSERT INTO t_statistik (`ID`, `f_Artikel_ID`, `Woche`, `Menge`, `Verkaufspreis`) VALUES (NULL, '" + ProduktID + "', '" + Woche + "', '" + Menge + "', '" + Einzelpreis + "')"); + } + + textField_2.setText(""); + txtPreis.setText(""); + txtProduktID.setText(""); + txtProduktName.setText(""); + + model = new DefaultTableModel(); + model.setColumnIdentifiers(new String[] { "ID", "Menge", "Preis", "SVEN Bon" }); + table_2.setModel(model); + label.setText("0,00 €"); + Preis = 0; + } + } + }); + panel.setLayout(null); + btnTotal.setFont(new Font("Tahoma", Font.PLAIN, 12)); + panel.add(btnTotal); + + JButton button_1 = new JButton("3"); + button_1.setBounds(607, 372, 41, 41); + button_1.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textField_2.setText(textField_2.getText() + "3"); + } + }); + + JButton button_2 = new JButton("6"); + button_2.setBounds(607, 332, 41, 41); + button_2.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textField_2.setText(textField_2.getText() + "6"); + } + }); + panel.add(button_2); + + JButton btnDel = new JButton("DEL"); + btnDel.setBounds(648, 291, 65, 41); + btnDel.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + String text = textField_2.getText(); + textField_2.setText(text.substring(0, text.length() - 1)); + } + }); + btnDel.setFont(new Font("Tahoma", Font.PLAIN, 12)); + btnDel.setForeground(Color.RED); + panel.add(btnDel); + + JButton button_3 = new JButton("9"); + button_3.setBounds(607, 292, 41, 41); + button_3.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textField_2.setText(textField_2.getText() + "9"); + } + }); + panel.add(button_3); + + JButton button_5 = new JButton("2"); + button_5.setBounds(566, 372, 41, 41); + button_5.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textField_2.setText(textField_2.getText() + "2"); + } + }); + panel.add(button_5); + + JButton button_6 = new JButton("5"); + button_6.setBounds(566, 332, 41, 41); + button_6.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textField_2.setText(textField_2.getText() + "5"); + } + }); + panel.add(button_6); + + JButton button_7 = new JButton("8"); + button_7.setBounds(566, 292, 41, 41); + button_7.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textField_2.setText(textField_2.getText() + "8"); + } + }); + panel.add(button_7); + + JButton button_8 = new JButton("0"); + button_8.setBounds(648, 372, 65, 41); + button_8.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent arg0) { + textField_2.setText(textField_2.getText() + "0"); + } + }); + panel.add(button_8); + + JButton button_9 = new JButton("1"); + button_9.setBounds(525, 372, 41, 41); + button_9.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textField_2.setText(textField_2.getText() + "1"); + } + }); + panel.add(button_9); + + JButton button_10 = new JButton("4"); + button_10.setBounds(525, 332, 41, 41); + button_10.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textField_2.setText(textField_2.getText() + "4"); + } + }); + panel.add(button_10); + + JButton button_11 = new JButton("7"); + button_11.setBounds(525, 292, 41, 41); + button_11.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textField_2.setText(textField_2.getText() + "7"); + } + }); + panel.add(button_11); + + JButton btnAbbruch = new JButton("Abbruch"); + btnAbbruch.setBounds(443, 291, 82, 41); + btnAbbruch.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textField_2.setText(""); + txtPreis.setText(""); + txtProduktID.setText(""); + txtProduktName.setText(""); + + model = new DefaultTableModel(); + model.setColumnIdentifiers(new String[] { "ID", "Menge", "Preis", "SVEN Bon" }); + table_2.setModel(model); + label.setText("0,00 €"); + Preis = 0; + } + }); + btnAbbruch.setFont(new Font("Tahoma", Font.PLAIN, 12)); + panel.add(btnAbbruch); + + textField = new JTextField(); + textField.addCaretListener(new CaretListener() { + public void caretUpdate(CaretEvent arg0) { + String Suchen = textField.getText(); + + if (Suchen.equals("")) { + table = new JTable(); + Helper h = new Helper(); + h.connect("sven"); + table.setModel(h.getTableModel("SELECT ID, Name, Marke, Verkaufspreis FROM t_artikel")); + scrollPane.setViewportView(table); + + } else { + table = new JTable(); + Helper g = new Helper(); + g.connect("sven"); + + String SQL = "SELECT ID, Name, Marke, Verkaufspreis FROM `t_artikel` WHERE Name LIKE '" + Suchen + + "%' "; + + table.setModel(g.getTableModel(SQL)); + scrollPane.setViewportView(table); + } + + table.getColumnModel().getColumn(0).setPreferredWidth(25); + + table.getSelectionModel().addListSelectionListener(new ListSelectionListener() { + @Override + public void valueChanged(ListSelectionEvent e) { + + if (e.getValueIsAdjusting() == false) { + + txtProduktID.setText((String) table.getModel().getValueAt(table.getSelectedRow(), 0)); + + txtProduktName.setText((String) table.getModel().getValueAt(table.getSelectedRow(), 1)); + + float preis = Float.parseFloat((String) table.getModel().getValueAt(table.getSelectedRow(), 3)); + + txtPreis.setText(String.format("%.2f €", preis)); + } + } + }); + } + }); + textField.setBounds(10, 11, 423, 20); + panel.add(textField); + textField.setColumns(10); + + JLabel lblBetrag = new JLabel("Betrag:"); + lblBetrag.setBounds(525, 38, 60, 14); + panel.add(lblBetrag); + + JComboBox Woche = new JComboBox(comboBoxWoche); + Woche.setBounds(505, 11, 80, 20); + panel.add(Woche); + + JComboBox Monate = new JComboBox(comboBoxMonate); + Monate.setBounds(583, 11, 133, 20); + panel.add(Monate); + + JButton btnKw = new JButton("KW"); + btnKw.setBounds(716, 11, 55, 20); + btnKw.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent arg0) { + int p; + String w = (String) Woche.getSelectedItem(); + p = Integer.valueOf(w); + String m = (String) Monate.getSelectedItem(); + int n = 0; + if (m.equals(a)) { + n = 1; + } + if (m.equals(b)) { + n = 2; + } + if (m.equals(c)) { + n = 3; + } + if (m.equals(d)) { + n = 4; + } + if (m.equals(e)) { + n = 5; + } + if (m.equals(f)) { + n = 6; + } + if (m.equals(g)) { + n = 7; + } + if (m.equals(o)) { + n = 8; + } + if (m.equals(i)) { + n = 9; + } + if (m.equals(j)) { + n = 10; + } + if (m.equals(k)) { + n = 11; + } + if (m.equals(l)) { + n = 12; + } + int k; + k = (p + ((n - 1) * 4)); + String q; + q = String.valueOf(k); + textField_3.setText(q); + } + }); + panel.add(btnKw); + + scrollPane.setBounds(10, 36, 423, 375); + panel.add(scrollPane); + + panel.add(button_1); + + JButton btnEnter = new JButton("Enter"); + btnEnter.setBounds(648, 331, 65, 41); + btnEnter.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + + int Menge = Integer.parseInt(textField_2.getText()); + + float Einzelpreis = Float.valueOf(txtPreis.getText().replace("€", "").replace(",", ".")); + + float Summe = Menge * Einzelpreis; + + Preis += Summe; + label.setText(String.format("%.2f €", Preis)); + + model.addRow(new String[] { txtProduktID.getText(), Menge + "", Einzelpreis + "", Summe + " €" }); + + textField_2.setText(""); + txtPreis.setText(""); + txtProduktID.setText(""); + txtProduktName.setText(""); + + + + } + }); + btnEnter.setFont(new Font("Tahoma", Font.PLAIN, 12)); + btnEnter.setForeground(Color.GREEN); + panel.add(btnEnter); + + scrollPane_1.setBounds(505, 51, 208, 193); + panel.add(scrollPane_1); + + table_2 = new JTable(); + table_2.setModel(model); + table_2.getColumnModel().getColumn(0).setPreferredWidth(20); + scrollPane_1.setViewportView(table_2); + + JButton btnQrcodeScannen = new JButton("QR-Code"); + btnQrcodeScannen.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent arg0) { + // JFileChooser erstellen + JFileChooser fc = new JFileChooser(); + fc.setCurrentDirectory(new File("T:/INTABI19/Projekt/ELMO Interactive Toolbox/rec")); + + // Wenn im Dialog nicht OK gedrückt wurde, Methode verlassen + if (fc.showOpenDialog(_this) != JFileChooser.APPROVE_OPTION) + return; + + // Ausgewählte Datei auslesen + File f = fc.getSelectedFile(); + + // Ausgelesener Wert + int value = -1; + + // Versuche, den QR-Code einzulesen + // Wenn das nicht geht, wird eine Fehlermeldung ausgegeben + try { + value = SvenQR.ReadQR(f.getAbsolutePath()); + } catch (IOException e1) { + JOptionPane.showMessageDialog(_this, "QR-Code konnte nicht eingelesen werden: " + e1.getMessage()); + return; + } + + int Menge = 1; + + Helper g = new Helper(); + g.connect("sven"); + String SQL = "SELECT Verkaufspreis FROM `t_artikel` WHERE QR = " + value; + + DefaultTableModel _model = g.getTableModel(SQL); + + if (_model.getRowCount() != 1) { + JOptionPane.showMessageDialog(_this, "QR-Code konnte nicht zugeordnet werden."); + return; + } + + float Einzelpreis = Float.valueOf(_model.getValueAt(0, 0).toString()); + float Summe = Menge * Einzelpreis; + + Preis += Summe; + label.setText(String.format("%.2f €", Preis)); + + model.addRow(new String[] { GetProductIDFromQRCode(value), Menge + "", Einzelpreis + "", Summe + " €" }); + } + }); + btnQrcodeScannen.setBounds(443, 331, 82, 82); + btnQrcodeScannen.setFont(new Font("Trebuchet MS", Font.PLAIN, 12)); + panel.add(btnQrcodeScannen); + + textField_2 = new JTextField(); + textField_2.setBounds(505, 271, 103, 20); + textField_2.setColumns(10); + panel.add(textField_2); + + textField_3 = new JTextField(); + textField_3.setBounds(771, 11, 60, 20); + panel.add(textField_3); + textField_3.setColumns(10); + + txtProduktID = new JTextField(); + txtProduktID.setEditable(false); + txtProduktID.setBounds(505, 248, 61, 20); + panel.add(txtProduktID); + txtProduktID.setColumns(10); + + txtProduktName = new JTextField(); + txtProduktName.setEditable(false); + txtProduktName.setBounds(566, 248, 147, 20); + panel.add(txtProduktName); + txtProduktName.setColumns(10); + + txtPreis = new JTextField(); + txtPreis.setEditable(false); + txtPreis.setBounds(607, 271, 106, 20); + panel.add(txtPreis); + txtPreis.setColumns(10); + + textField.setText("4"); + textField.setText(""); + + JPanel panel_2 = new JPanel(); + tabbedPane.addTab(" ABC- / XYZ-Analyse ", null, panel_2, null); + tabbedPane.setEnabledAt(2, false); + panel_2.setLayout(new MigLayout("", "[][grow][grow][grow]", "[][grow][grow][grow]")); + + JPanel panel_3 = new JPanel(); + panel_2.add(panel_3, "cell 1 0,grow"); + panel_3.setLayout(new BorderLayout(0, 0)); + + JLabel lblA = new JLabel("A"); + lblA.setFont(new Font("Tahoma", Font.BOLD, 18)); + lblA.setHorizontalAlignment(SwingConstants.CENTER); + panel_3.add(lblA, BorderLayout.CENTER); + + JPanel panel_4 = new JPanel(); + panel_2.add(panel_4, "cell 2 0,grow"); + panel_4.setLayout(new BorderLayout(0, 0)); + + JLabel lblB = new JLabel("B"); + lblB.setHorizontalAlignment(SwingConstants.CENTER); + lblB.setFont(new Font("Tahoma", Font.BOLD, 18)); + panel_4.add(lblB, BorderLayout.CENTER); + + JPanel panel_5 = new JPanel(); + panel_2.add(panel_5, "cell 3 0,grow"); + panel_5.setLayout(new BorderLayout(0, 0)); + + JLabel lblNewLabel = new JLabel("C"); + lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER); + lblNewLabel.setFont(new Font("Tahoma", Font.BOLD, 18)); + panel_5.add(lblNewLabel, BorderLayout.CENTER); + + JPanel panel_6 = new JPanel(); + panel_2.add(panel_6, "cell 0 1,grow"); + panel_6.setLayout(new BorderLayout(0, 0)); + + JLabel lblX = new JLabel("X"); + lblX.setHorizontalAlignment(SwingConstants.CENTER); + lblX.setFont(new Font("Tahoma", Font.BOLD, 18)); + panel_6.add(lblX, BorderLayout.CENTER); + + JScrollPane scrollPane_2 = new JScrollPane(); + panel_2.add(scrollPane_2, "cell 1 1,grow"); + textArea_AX.setEditable(false); + textArea_AX.setWrapStyleWord(true); + scrollPane_2.setViewportView(textArea_AX); + + JScrollPane scrollPane_3 = new JScrollPane(); + panel_2.add(scrollPane_3, "cell 2 1,grow"); + + + textArea_BX.setWrapStyleWord(true); + textArea_BX.setEditable(false); + scrollPane_3.setViewportView(textArea_BX); + + JScrollPane scrollPane_4 = new JScrollPane(); + panel_2.add(scrollPane_4, "cell 3 1,grow"); + + + textArea_CX.setWrapStyleWord(true); + textArea_CX.setEditable(false); + scrollPane_4.setViewportView(textArea_CX); + + JPanel panel_7 = new JPanel(); + panel_2.add(panel_7, "cell 0 2,grow"); + panel_7.setLayout(new BorderLayout(0, 0)); + + JLabel lblY = new JLabel("Y"); + lblY.setHorizontalAlignment(SwingConstants.CENTER); + lblY.setFont(new Font("Tahoma", Font.BOLD, 18)); + panel_7.add(lblY, BorderLayout.CENTER); + + JScrollPane scrollPane_5 = new JScrollPane(); + panel_2.add(scrollPane_5, "cell 1 2,grow"); + + textArea_AY.setWrapStyleWord(true); + textArea_AY.setEditable(false); + scrollPane_5.setViewportView(textArea_AY); + + JScrollPane scrollPane_6 = new JScrollPane(); + panel_2.add(scrollPane_6, "cell 2 2,grow"); + + textArea_BY.setWrapStyleWord(true); + textArea_BY.setEditable(false); + scrollPane_6.setViewportView(textArea_BY); + + JScrollPane scrollPane_7 = new JScrollPane(); + panel_2.add(scrollPane_7, "cell 3 2,grow"); + + textArea_CY.setWrapStyleWord(true); + textArea_CY.setEditable(false); + scrollPane_7.setViewportView(textArea_CY); + + JPanel panel_8 = new JPanel(); + panel_2.add(panel_8, "cell 0 3,grow"); + panel_8.setLayout(new BorderLayout(0, 0)); + + JLabel lblZ = new JLabel("Z"); + lblZ.setHorizontalAlignment(SwingConstants.CENTER); + lblZ.setFont(new Font("Tahoma", Font.BOLD, 18)); + panel_8.add(lblZ, BorderLayout.CENTER); + + JScrollPane scrollPane_8 = new JScrollPane(); + panel_2.add(scrollPane_8, "cell 1 3,grow"); + + textArea_AZ.setWrapStyleWord(true); + textArea_AZ.setEditable(false); + scrollPane_8.setViewportView(textArea_AZ); + + JScrollPane scrollPane_9 = new JScrollPane(); + panel_2.add(scrollPane_9, "cell 2 3,grow"); + + textArea_BZ.setWrapStyleWord(true); + textArea_BZ.setEditable(false); + scrollPane_9.setViewportView(textArea_BZ); + + JScrollPane scrollPane_10 = new JScrollPane(); + panel_2.add(scrollPane_10, "cell 3 3,grow"); + + textArea_CZ.setWrapStyleWord(true); + textArea_CZ.setEditable(false); + scrollPane_10.setViewportView(textArea_CZ); + + } + + private String GetProductIDFromQRCode(int value) { + Helper g = new Helper(); + g.connect("sven"); + String SQL = "SELECT ID FROM `t_artikel` WHERE QR = " + value; + + DefaultTableModel model = g.getTableModel(SQL); + + if (model.getRowCount() != 1) { + JOptionPane.showMessageDialog(_this, "QR-Code konnte nicht zugeordnet werden."); + return ""; + } + + return String.valueOf(model.getValueAt(0, 0)); + } +} diff --git a/Kasse/src/Pair.java b/Kasse/src/Pair.java new file mode 100644 index 0000000..86373d6 --- /dev/null +++ b/Kasse/src/Pair.java @@ -0,0 +1,15 @@ +public class Pair { + public int x, y; + + public Pair(int _x, int _y) { + x = _x; + y = _y; + } + + // Kopierkonstruktor, da eine Zuweisung nicht die Werte kopiert, + // sondern beide Variablen auf den gleichen Speicher zeigen lässt. + public Pair(Pair copy) { + x = copy.x; + y = copy.y; + } +} diff --git a/Kasse/src/PrintActionListener.java b/Kasse/src/PrintActionListener.java new file mode 100644 index 0000000..ad02e2f --- /dev/null +++ b/Kasse/src/PrintActionListener.java @@ -0,0 +1,71 @@ +import java.awt.Graphics; +import java.awt.image.BufferedImage; +import java.awt.print.PageFormat; +import java.awt.print.Printable; +import java.awt.print.PrinterException; +import java.awt.print.PrinterJob; + +// Quelle: https://stackoverflow.com/questions/18404553/proper-way-of-printing-a-bufferedimage-in-java + +public class PrintActionListener implements Runnable { + + private BufferedImage image; + + public PrintActionListener(BufferedImage image) { + this.image = image; + } + + @Override + public void run() { + PrinterJob printJob = PrinterJob.getPrinterJob(); + printJob.setPrintable(new ImagePrintable(printJob, image)); + + if (printJob.printDialog()) { + try { + printJob.print(); + } catch (PrinterException prt) { + prt.printStackTrace(); + } + } + } + + public class ImagePrintable implements Printable { + + private double x, y, width; + + private int orientation; + + private BufferedImage image; + + public ImagePrintable(PrinterJob printJob, BufferedImage image) { + PageFormat pageFormat = printJob.defaultPage(); + this.x = pageFormat.getImageableX(); + this.y = pageFormat.getImageableY(); + this.width = pageFormat.getImageableWidth(); + this.orientation = pageFormat.getOrientation(); + this.image = image; + } + + @Override + public int print(Graphics g, PageFormat pageFormat, int pageIndex) + throws PrinterException { + if (pageIndex == 0) { + int pWidth = 0; + int pHeight = 0; + if (orientation == PageFormat.PORTRAIT) { + pWidth = (int) Math.min(width, (double) image.getWidth()); + pHeight = pWidth * image.getHeight() / image.getWidth(); + } else { + pHeight = (int) Math.min(width, (double) image.getHeight()); + pWidth = pHeight * image.getWidth() / image.getHeight(); + } + g.drawImage(image, (int) x, (int) y, pWidth, pHeight, null); + return PAGE_EXISTS; + } else { + return NO_SUCH_PAGE; + } + } + + } + + } diff --git a/Kasse/src/SvenQR.java b/Kasse/src/SvenQR.java new file mode 100644 index 0000000..a7b2e2f --- /dev/null +++ b/Kasse/src/SvenQR.java @@ -0,0 +1,484 @@ +import java.awt.*; +import java.awt.image.*; +import java.awt.print.PageFormat; +import java.awt.print.Printable; +import java.awt.print.PrinterException; +import java.awt.print.PrinterJob; +import java.io.*; +import javax.imageio.ImageIO; + +public class SvenQR { + // Anzahl der Rechtecke horizontal + public static final int AMNT_RECT_X = 4; + // Anzahl der Rechtecke vertikal + public static final int AMNT_RECT_Y = 3; + // Rahmendicke in Pixeln + public static final int BORDER_WIDTH = 8; + // Rechteckgröße in Pixeln + public static final int RECT_WIDTH = 40; + + // Liest das angegebene Bild ein und wertet den QR-Code aus. + public static int ReadQR(String fileName) throws IOException { + // Quellbild + BufferedImage img = ImageIO.read(new File(fileName)); + // Informationen über den Rand und die Ausmaße + BorderInformation info; + // Gemessene Größe des QR-Codes + Pair measuredSize; + // Wert des QR-Codes + int value; + + img = _IN_PrepareImage(img); + + info = _IN_GetBorderWidth(img); + + Pair imageSize = new Pair((int) img.getWidth(), (int) img.getHeight()); + measuredSize = _IN_GetMeasuredSize(img, info, imageSize); + + // Durchschnittsgröße der Rechtecke + int avgSquareWidth = (int) ((measuredSize.x - 4f * info.BorderWidth) / AMNT_RECT_X); + int avgSquareHeight = (int) ((measuredSize.y - 4f * info.BorderWidth) / AMNT_RECT_Y); + Pair avgSquareSize = new Pair(avgSquareWidth, avgSquareHeight); + + value = _IN_HeuristicDetermination(img, info, avgSquareSize); + + return value; + } + + public static BufferedImage GenerateQR(int value) { + boolean[][] bits; + BufferedImage img; + + // Konvertiere die Zahl in eine Bit-Tabelle, die der QR-Code-Darstellung + // entspricht + bits = _OUT_GetBits(value); + + // Generiere Bild + img = _OUT_DrawImage(bits); + + return img; + } + + public static BufferedImage _IN_PrepareImage(BufferedImage img) { + // Bildgröße auslesen + int width = img.getWidth(); + int height = img.getHeight(); + + // + // = BILD ENTSÄTTIGEN UND KONTRAST SPREIZEN = + // + // Jedes Pixel durchgehen und in Graustufen umwandeln, + // danach den Kontrast spreizen, sodass nur noch schwarze + // und weiße Pixel im Bild sind, anders kann der Algorithmus + // nicht arbeiten. + // + + for (int y = 0; y < height; y++) { + for (int x = 0; x < width; x++) { + + // Aktuelles Pixel auslesen + int value = img.getRGB(x, y); + Color c1 = new Color(value); + + // Graustufe berechnen + int grau = (c1.getBlue() + c1.getRed() + c1.getGreen()) / 3; + + // Kontrast spreizen + if (grau >= 127) { + grau = 255; + } else { + grau = 0; + } + + // Pixel ersetzen + Color c = new Color(grau, grau, grau); + img.setRGB(x, y, c.getRGB()); + } + } + + try { + File fx = new File("X:/ents.png"); // Speicherort + ImageIO.write(img, "png", fx); // Bildformat + } catch (IOException e) { + System.out.println("Error: " + e); + } + + // + // = ALLEINSTEHENDE PIXEL IM BILD ENTFERNEN = + // + // Wenn das Bild fleckig ist, entstehen einzelne Pixel, die + // den Algorithmus zum auslesen stören können, also werden + // diese entfernt. + // + + for (int x = 0; x < width; x++) { + for (int y = 0; y < height; y++) { + boolean weissAussendrum = true; + + // Rechts + if (!(x < width - 1 && img.getRGB(x + 1, y) == -1)) + weissAussendrum = false; + // Links + if (!(x > 0 && img.getRGB(x - 1, y) == -1)) + weissAussendrum = false; + // Drunter + if (!(y < height - 1 && img.getRGB(x, y + 1) == -1)) + weissAussendrum = false; + // Drüber + if (!(y > 0 && img.getRGB(x, y - 1) == -1)) + weissAussendrum = false; + + // Links oben + if (!(x > 0 && y > 0 && img.getRGB(x - 1, y - 1) == - 1)) + weissAussendrum = false; + // Links unten + if (!(x > 0 && y < height - 1 && img.getRGB(x - 1, y + 1) == -1)) + weissAussendrum = false; + // Rechts oben + if (!(x < width - 1 && y > 0 && img.getRGB(x + 1, y - 1) == -1)) + weissAussendrum = false; + // Rechts unten + if (!(x < width - 1 && y < height - 1 && img.getRGB(x + 1, y + 1) == -1)) + weissAussendrum = false; + + if (weissAussendrum) + img.setRGB(x, y, -1 ); + + } + } + + try { + File fx = new File("X:/prep2.png"); // Speicherort + ImageIO.write(img, "png", fx); // Bildformat + } catch (IOException e) { + System.out.println("Error: " + e); + } + + return img; + } + + private static BorderInformation _IN_GetBorderWidth(BufferedImage img) { + Color pixel; + + // Informationen über den Rahmen des QR-Codes + BorderInformation info = null; + + // Breite des schwarzen Rahmens und Orientierungspunkte + float borderWidth = -1f; + Pair firstBlackPixel = new Pair(-1, -1); + Pair firstWhitePixel; + + // + // = SUCHE DAS ERSTE SCHWARZE PIXEL IN DER LINKEN OBEREN ECKE = + // + + // Gehe diagonal durch das Bild auf der Suche nach schwarzen Pixeln + while (!_IN_CompareColors(img.getRGB(firstBlackPixel.x + 1, firstBlackPixel.y + 1), Color.BLACK)) { + firstBlackPixel.x++; + firstBlackPixel.y++; + } + + firstBlackPixel.x++; + firstBlackPixel.y++; + + // Aufgrund von Ungenauigkeiten beim Drucken, gehen wir drei Pixel in den Rand rein + firstBlackPixel.x += 2; + + System.out.println("Suche schwarzes Pixel."); + System.out.println("X: " + firstBlackPixel.x + " Y: " + firstBlackPixel.y + "\n"); + + + // Gehe so weit wie möglich nach oben + while (firstBlackPixel.y > 0 + && _IN_CompareColors(img.getRGB(firstBlackPixel.x, firstBlackPixel.y - 1), Color.BLACK)) + firstBlackPixel.y--; + + System.out.println("Gehe so weit wie möglich nach oben"); + System.out.println("X: " + firstBlackPixel.x + " Y: " + firstBlackPixel.y + "\n"); + + // Gehe so weit wie möglich nach links + while (firstBlackPixel.x > 0 + && _IN_CompareColors(img.getRGB(firstBlackPixel.x - 1, firstBlackPixel.y), Color.BLACK)) + firstBlackPixel.x--; + + System.out.println("Gehe so weit wie möglich nach links"); + System.out.println("X: " + firstBlackPixel.x + " Y: " + firstBlackPixel.y + "\n"); + + // + // = SUCHE DAS ERSTE WEISSE PIXEL VOM INNEREN RAHMEN = + // + + firstWhitePixel = new Pair(firstBlackPixel); + + // Gehe diagonal vom ersten schwarzen Pixel durch das Bild + while (!_IN_CompareColors(img.getRGB(firstWhitePixel.x + 1, firstWhitePixel.y + 1), Color.WHITE)) { + firstWhitePixel.x++; + firstWhitePixel.y++; + } + + firstWhitePixel.x++; + firstWhitePixel.y++; + + System.out.println("Suche weißes Pixel"); + System.out.println("X: " + firstWhitePixel.x + " Y: " + firstWhitePixel.y + "\n"); + + // Gehe so weit wie möglich nach oben + while (_IN_CompareColors(img.getRGB(firstWhitePixel.x, firstWhitePixel.y - 1), Color.WHITE)) + firstWhitePixel.y--; + + System.out.println("Gehe soweit wie möglich nach oben"); + System.out.println("X: " + firstWhitePixel.x + " Y: " + firstWhitePixel.y + "\n"); + + // Gehe so weit wie möglich nach links + while (_IN_CompareColors(img.getRGB(firstWhitePixel.x - 1, firstWhitePixel.y), Color.WHITE)) + firstWhitePixel.x--; + + System.out.println("Gehe soweit wie möglich nach links"); + System.out.println("X: " + firstWhitePixel.x + " Y: " + firstWhitePixel.y + "\n"); + + // Differenzen, also Rahmenstärke ausrechnen + int deltaX = firstWhitePixel.x - firstBlackPixel.x; + int deltaY = firstWhitePixel.y - firstBlackPixel.y; + + // Durchschnitt ermitteln + borderWidth = (deltaX + deltaY) / 2f; + + System.out.println("Border width: " + borderWidth); + + info = new BorderInformation(borderWidth, firstBlackPixel); + return info; + } + + private static Pair _IN_GetMeasuredSize(BufferedImage img, BorderInformation borderInfo, Pair imageSize) { + Pair measuredSize; + Pair upperRightBlackPixel, lowerLeftBlackPixel; + Color pixel; + + // + // = MESSE DIE BREITE DES QR-CODES = + // + + upperRightBlackPixel = new Pair(borderInfo.firstBlackPixel); + // Weil das Bild nicht immer gerade ist, messen wir in der Mitte des + // schwarzen Rahmens + upperRightBlackPixel.y += borderInfo.BorderWidth / 2f; + + while (upperRightBlackPixel.x < imageSize.x - 1 + && !_IN_CompareColors(img.getRGB(upperRightBlackPixel.x + 1, upperRightBlackPixel.y), Color.WHITE)) + upperRightBlackPixel.x++; + + // + // = MESSE DIE HÖHE DES QR-CODES = + // + + lowerLeftBlackPixel = new Pair(borderInfo.firstBlackPixel); + // Immer mittig messen, kann bei arg schiefen Bildern jedoch auch wieder + // zu fehlerhaften Ergebnissen führen + // In solch einem Fall können wir nichts tun :/ + lowerLeftBlackPixel.x += borderInfo.BorderWidth / 2f; + + while (lowerLeftBlackPixel.y < imageSize.y - 1 + && !_IN_CompareColors(img.getRGB(upperRightBlackPixel.x, upperRightBlackPixel.y + 1), Color.WHITE)) + lowerLeftBlackPixel.y++; + + // Errechne die Größe des QR-Codes aus den Differenzen der Punkte + measuredSize = new Pair(upperRightBlackPixel.x - borderInfo.firstBlackPixel.x, + lowerLeftBlackPixel.y - borderInfo.firstBlackPixel.y); + measuredSize.x++; + measuredSize.y++; + + System.out.println("Gemessene Größe: " + measuredSize.x + " x " + measuredSize.y); + + return measuredSize; + } + + private static int _IN_HeuristicDetermination(BufferedImage img, BorderInformation borderInfo, Pair avgSquareSize) { + boolean[][] bits = new boolean[AMNT_RECT_X][AMNT_RECT_Y]; + float halfWidth = avgSquareSize.x / 2f, halfHeight = avgSquareSize.y / 2f; + int c_value; + + for (int x = 0; x < AMNT_RECT_X; x++) { + for (int y = 0; y < AMNT_RECT_Y; y++) { + + int _x = (int) (2 * borderInfo.BorderWidth); + _x += (int) (x * avgSquareSize.x); + _x += (int) halfWidth; + _x += borderInfo.firstBlackPixel.x; + + int _y = (int) (2 * borderInfo.BorderWidth); + _y += (int) (y * avgSquareSize.y); + _y += (int) halfHeight; + _y += borderInfo.firstBlackPixel.y; + + c_value = img.getRGB(_x, _y); + System.out.println("X: " + _x + " Y: " + _y + " V: " + (_IN_CompareColors(c_value, Color.WHITE) ? false : true)); + + if (_IN_CompareColors(c_value, Color.WHITE)) + bits[x][y] = false; + else if (_IN_CompareColors(c_value, Color.BLACK)) + bits[x][y] = true; + } + } + + int value = 0; + + if (bits[0][0]) + value += 1; + if (bits[1][0]) + value += 2; + if (bits[2][0]) + value += 4; + if (bits[3][0]) + value += 8; + + if (bits[0][1]) + value += 16; + if (bits[1][1]) + value += 32; + if (bits[2][1]) + value += 64; + if (bits[3][1]) + value += 128; + + if (bits[0][2]) + value += 256; + if (bits[1][2]) + value += 512; + if (bits[2][2]) + value += 1024; + if (bits[3][2]) + value += 2048; + + return value; + } + + private static boolean _IN_CompareColors(int rgb, Color template) { + Color c = new Color(rgb); + if (c.getRed() != template.getRed()) + return false; + if (c.getGreen() != template.getGreen()) + return false; + if (c.getBlue() != template.getBlue()) + return false; + return true; + } + + private static boolean[][] _OUT_GetBits(int value) { + // Die Bits in QR-Code-Darstellung + boolean[][] bits = new boolean[AMNT_RECT_X][AMNT_RECT_Y]; + // Die Bits als Binärstring + String bitsAsString = Integer.toBinaryString(value); + // Anzahl an führenden Nullen für 12-Bit: + int amntLeadingZeros = 12 - bitsAsString.length(); + + // Stelle führende Nullen voran + for (int i = 0; i < amntLeadingZeros; i++) + bitsAsString = "0" + bitsAsString; + + bits[0][0] = bitsAsString.charAt(11) == '0' ? false : true; + bits[1][0] = bitsAsString.charAt(10) == '0' ? false : true; + bits[2][0] = bitsAsString.charAt(9) == '0' ? false : true; + bits[3][0] = bitsAsString.charAt(8) == '0' ? false : true; + bits[0][1] = bitsAsString.charAt(7) == '0' ? false : true; + bits[1][1] = bitsAsString.charAt(6) == '0' ? false : true; + bits[2][1] = bitsAsString.charAt(5) == '0' ? false : true; + bits[3][1] = bitsAsString.charAt(4) == '0' ? false : true; + bits[0][2] = bitsAsString.charAt(3) == '0' ? false : true; + bits[1][2] = bitsAsString.charAt(2) == '0' ? false : true; + bits[2][2] = bitsAsString.charAt(1) == '0' ? false : true; + bits[3][2] = bitsAsString.charAt(0) == '0' ? false : true; + + return bits; + } + + private static BufferedImage _OUT_DrawImage(boolean[][] bits) { + // Bildgröße + Pair imageSize; + // Bild + BufferedImage img; + // Grafikobjekt zum zeichnen + Graphics2D g; + + // Bildbreite und -höhe berechnen + // Bei 72 dpi entspricht 1mm 3px, wir nehmen 2px + imageSize = new Pair(BORDER_WIDTH * 4 + AMNT_RECT_X * RECT_WIDTH, BORDER_WIDTH * 4 + AMNT_RECT_Y * RECT_WIDTH); + + // Bild erstellen und Grafikobjekt erstellen + img = new BufferedImage(imageSize.x, imageSize.y, BufferedImage.TYPE_INT_ARGB); + g = img.createGraphics(); + + // + // = QR-CODE-ZEICHEN = + // + + // Äußeren Rahmen zeichnen + g.setColor(Color.BLACK); + g.fillRect(0, 0, imageSize.x, imageSize.y); + + // Inneren Rahmen zeichnen + g.setColor(Color.WHITE); + g.fillRect(BORDER_WIDTH, BORDER_WIDTH, imageSize.x - 2 * BORDER_WIDTH, imageSize.y - 2 * BORDER_WIDTH); + + g.setColor(Color.BLACK); + + // Rechtecke zeichnen + for (int x = 0; x < AMNT_RECT_X; x++) { + for (int y = 0; y < AMNT_RECT_Y; y++) { + int _x = BORDER_WIDTH * 2 + x * RECT_WIDTH; + int _y = BORDER_WIDTH * 2 + y * RECT_WIDTH; + + if (!bits[x][y]) + continue; + + g.fillRect(_x, _y, RECT_WIDTH, RECT_WIDTH); + } + } + + // Rechte untere Ecke als Orientierungspunkt entfernen + g.setColor(Color.WHITE); + g.fillRect(imageSize.x - BORDER_WIDTH, imageSize.y - BORDER_WIDTH, BORDER_WIDTH, BORDER_WIDTH); + + return img; + } + +} + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/Kasse/src/lib/SQLConnection.java b/Kasse/src/lib/SQLConnection.java new file mode 100644 index 0000000..60d572a --- /dev/null +++ b/Kasse/src/lib/SQLConnection.java @@ -0,0 +1,135 @@ +package lib; + +import java.sql.Connection; +import java.sql.DriverManager; +import java.sql.ResultSet; +import java.sql.ResultSetMetaData; +import java.sql.SQLException; +import java.util.ArrayList; +import java.util.HashMap; + +/** + * SQL helper to interact with the database + * + * @author Manuel + */ +public class SQLConnection { + + Connection con; + + public SQLConnection() { + this("102-012/sven"); + } + + public SQLConnection(String url) { + this(url, "intabi19", "hallo"); + } + + public SQLConnection(String url, String username, String password) { + try { + this.con = DriverManager.getConnection("jdbc:mysql://" + url, username, password); + } catch (SQLException e) { + e.printStackTrace(); + } + } + + /** + * Executes a query without storing the return values + * + * @param sqlQuery SQL command to be executed + */ + public void execute(String sqlQuery) { + try { + System.out.println("SQL: " + sqlQuery); + this.con.createStatement().execute(sqlQuery); + } catch (SQLException e) { + e.printStackTrace(); + } + } + + /** + * @returns table headers in a list from an existing meta data object + */ + private ArrayList getColumnNames(ResultSetMetaData metaData) throws SQLException { + int columns = metaData.getColumnCount(); + + ArrayList columnTitles = new ArrayList<>(); + for (int i = 0; i < columns; i++) { + columnTitles.add(metaData.getColumnLabel(i + 1)); + } + + return columnTitles; + } + + /** + * Converts the database return values into a usable format + * + * @param sqlQuery SQL command to be executed + * @return a list of rows that are keyed by their column name + */ + public ArrayList> queryToMap(String sqlQuery) { + ArrayList> data = new ArrayList<>(); + + //System.out.println("SQLq: " + sqlQuery); + + try { + ResultSet result = this.con.createStatement().executeQuery(sqlQuery); + ResultSetMetaData metaData = result.getMetaData(); + + int columns = metaData.getColumnCount(); + + ArrayList columnTitles = getColumnNames(metaData); + + // iterate over all rows + while (result.next()) { + HashMap row = new HashMap<>(); + for (int i = 0; i < columns; i++) { + // copy items from table to row + row.put(columnTitles.get(i), result.getString(i + 1)); + } + data.add(row); + } + } catch (SQLException e) { + e.printStackTrace(); + } + + return data; + } + + @Deprecated + public ArrayList> queryToArray(String sqlQuery) { + ArrayList> data = new ArrayList<>(); + + try { + ResultSet result = this.con.createStatement().executeQuery(sqlQuery); + ResultSetMetaData metaData = result.getMetaData(); + + int columns = metaData.getColumnCount(); + + // iterate over all rows + while (result.next()) { + ArrayList row = new ArrayList<>(); + for (int i = 0; i < columns; i++) { + // copy items from table to row + row.add(result.getString(i + 1)); + } + data.add(row); + } + } catch (SQLException e) { + e.printStackTrace(); + } + + return data; + } + + /** + * Closes the connection with the database + */ + public void close() { + try { + this.con.close(); + } catch (SQLException e) { + e.printStackTrace(); + } + } +} diff --git a/Kasse/src/org/mindrot/BCrypt.java b/Kasse/src/org/mindrot/BCrypt.java new file mode 100644 index 0000000..e68d62e --- /dev/null +++ b/Kasse/src/org/mindrot/BCrypt.java @@ -0,0 +1,778 @@ +package org.mindrot; + +// Copyright (c) 2006 Damien Miller +// +// Permission to use, copy, modify, and distribute this software for any +// purpose with or without fee is hereby granted, provided that the above +// copyright notice and this permission notice appear in all copies. +// +// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +import java.io.UnsupportedEncodingException; + +import java.security.SecureRandom; + +/** + * BCrypt implements OpenBSD-style Blowfish password hashing using + * the scheme described in "A Future-Adaptable Password Scheme" by + * Niels Provos and David Mazieres. + *

+ * This password hashing system tries to thwart off-line password + * cracking using a computationally-intensive hashing algorithm, + * based on Bruce Schneier's Blowfish cipher. The work factor of + * the algorithm is parameterised, so it can be increased as + * computers get faster. + *

+ * Usage is really simple. To hash a password for the first time, + * call the hashpw method with a random salt, like this: + *

+ * + * String pw_hash = BCrypt.hashpw(plain_password, BCrypt.gensalt());
+ * + *

+ * To check whether a plaintext password matches one that has been + * hashed previously, use the checkpw method: + *

+ * + * if (BCrypt.checkpw(candidate_password, stored_hash))
+ *     System.out.println("It matches");
+ * else
+ *     System.out.println("It does not match");
+ * + *

+ * The gensalt() method takes an optional parameter (log_rounds) + * that determines the computational complexity of the hashing: + *

+ * + * String strong_salt = BCrypt.gensalt(10)
+ * String stronger_salt = BCrypt.gensalt(12)
+ * + *

+ * The amount of work increases exponentially (2**log_rounds), so + * each increment is twice as much work. The default log_rounds is + * 10, and the valid range is 4 to 30. + * + * @author Damien Miller + * @version 0.4 + */ +public class BCrypt { + // BCrypt parameters + private static final int GENSALT_DEFAULT_LOG2_ROUNDS = 10; + private static final int BCRYPT_SALT_LEN = 16; + + // Blowfish parameters + private static final int BLOWFISH_NUM_ROUNDS = 16; + + // Initial contents of key schedule + private static final int P_orig[] = { + 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, + 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89, + 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, + 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, + 0x9216d5d9, 0x8979fb1b + }; + private static final int S_orig[] = { + 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, + 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, + 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, + 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, + 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, + 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, + 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, + 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e, + 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, + 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, + 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, + 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a, + 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, + 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677, + 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, + 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, + 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, + 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239, + 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, + 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0, + 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, + 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, + 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, + 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe, + 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, + 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, + 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, + 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, + 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, + 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463, + 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, + 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09, + 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, + 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, + 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, + 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, + 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, + 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82, + 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, + 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, + 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, + 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, + 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, + 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8, + 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, + 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, + 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, + 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c, + 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, + 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1, + 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, + 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, + 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, + 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf, + 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, + 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, + 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, + 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, + 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, + 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, + 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, + 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, + 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, + 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a, + 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, + 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266, + 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, + 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, + 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6, + 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, + 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, + 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1, + 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, + 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, + 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff, + 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, + 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, + 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7, + 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, + 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, + 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, + 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, + 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, + 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87, + 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, + 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, + 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16, + 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, + 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, + 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509, + 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, + 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, + 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f, + 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, + 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, + 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960, + 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, + 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, + 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802, + 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, + 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, + 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf, + 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, + 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, + 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50, + 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, + 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, + 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281, + 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, + 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, + 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, + 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, + 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, + 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0, + 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, + 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, + 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, + 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, + 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, + 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061, + 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, + 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, + 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735, + 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, + 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, + 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340, + 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, + 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7, + 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, + 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068, + 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, + 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, + 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, + 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, + 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, + 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, + 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, + 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, + 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, + 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, + 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, + 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb, + 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, + 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, + 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, + 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, + 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, + 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc, + 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, + 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, + 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, + 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, + 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, + 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728, + 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, + 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, + 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, + 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, + 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, + 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b, + 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, + 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, + 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, + 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, + 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, + 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, + 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, + 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, + 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d, + 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc, + 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, + 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61, + 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, + 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, + 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2, + 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, + 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, + 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633, + 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, + 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, + 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, + 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027, + 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, + 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62, + 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, + 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, + 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24, + 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc, + 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, + 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c, + 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, + 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0, + 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, + 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe, + 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b, + 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, + 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8, + 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6, + 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, + 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22, + 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, + 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, + 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9, + 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59, + 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, + 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51, + 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, + 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, + 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b, + 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28, + 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, + 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd, + 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a, + 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, + 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb, + 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f, + 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, + 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32, + 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680, + 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, + 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, + 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb, + 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, + 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47, + 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370, + 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, + 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84, + 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048, + 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, + 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd, + 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, + 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, + 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38, + 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f, + 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, + 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525, + 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1, + 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, + 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964, + 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e, + 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, + 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d, + 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f, + 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, + 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02, + 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc, + 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, + 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a, + 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6, + 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, + 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, + 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060, + 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, + 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9, + 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f, + 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6 + }; + + // bcrypt IV: "OrpheanBeholderScryDoubt". The C implementation calls + // this "ciphertext", but it is really plaintext or an IV. We keep + // the name to make code comparison easier. + static private final int bf_crypt_ciphertext[] = { + 0x4f727068, 0x65616e42, 0x65686f6c, + 0x64657253, 0x63727944, 0x6f756274 + }; + + // Table for Base64 encoding + static private final char base64_code[] = { + '.', '/', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', + 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', + 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', + 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', + 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', + '6', '7', '8', '9' + }; + + // Table for Base64 decoding + static private final byte index_64[] = { + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, + -1, -1, -1, -1, -1, -1, 0, 1, 54, 55, + 56, 57, 58, 59, 60, 61, 62, 63, -1, -1, + -1, -1, -1, -1, -1, 2, 3, 4, 5, 6, + 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, + -1, -1, -1, -1, -1, -1, 28, 29, 30, + 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, + 51, 52, 53, -1, -1, -1, -1, -1 + }; + + // Expanded Blowfish key + private int P[]; + private int S[]; + + /** + * Encode a byte array using bcrypt's slightly-modified base64 + * encoding scheme. Note that this is *not* compatible with + * the standard MIME-base64 encoding. + * + * @param d the byte array to encode + * @param len the number of bytes to encode + * @return base64-encoded string + * @exception IllegalArgumentException if the length is invalid + */ + private static String encode_base64(byte d[], int len) + throws IllegalArgumentException { + int off = 0; + StringBuffer rs = new StringBuffer(); + int c1, c2; + + if (len <= 0 || len > d.length) + throw new IllegalArgumentException ("Invalid len"); + + while (off < len) { + c1 = d[off++] & 0xff; + rs.append(base64_code[(c1 >> 2) & 0x3f]); + c1 = (c1 & 0x03) << 4; + if (off >= len) { + rs.append(base64_code[c1 & 0x3f]); + break; + } + c2 = d[off++] & 0xff; + c1 |= (c2 >> 4) & 0x0f; + rs.append(base64_code[c1 & 0x3f]); + c1 = (c2 & 0x0f) << 2; + if (off >= len) { + rs.append(base64_code[c1 & 0x3f]); + break; + } + c2 = d[off++] & 0xff; + c1 |= (c2 >> 6) & 0x03; + rs.append(base64_code[c1 & 0x3f]); + rs.append(base64_code[c2 & 0x3f]); + } + return rs.toString(); + } + + /** + * Look up the 3 bits base64-encoded by the specified character, + * range-checking againt conversion table + * @param x the base64-encoded value + * @return the decoded value of x + */ + private static byte char64(char x) { + if ((int)x < 0 || (int)x > index_64.length) + return -1; + return index_64[(int)x]; + } + + /** + * Decode a string encoded using bcrypt's base64 scheme to a + * byte array. Note that this is *not* compatible with + * the standard MIME-base64 encoding. + * @param s the string to decode + * @param maxolen the maximum number of bytes to decode + * @return an array containing the decoded bytes + * @throws IllegalArgumentException if maxolen is invalid + */ + private static byte[] decode_base64(String s, int maxolen) + throws IllegalArgumentException { + StringBuffer rs = new StringBuffer(); + int off = 0, slen = s.length(), olen = 0; + byte ret[]; + byte c1, c2, c3, c4, o; + + if (maxolen <= 0) + throw new IllegalArgumentException ("Invalid maxolen"); + + while (off < slen - 1 && olen < maxolen) { + c1 = char64(s.charAt(off++)); + c2 = char64(s.charAt(off++)); + if (c1 == -1 || c2 == -1) + break; + o = (byte)(c1 << 2); + o |= (c2 & 0x30) >> 4; + rs.append((char)o); + if (++olen >= maxolen || off >= slen) + break; + c3 = char64(s.charAt(off++)); + if (c3 == -1) + break; + o = (byte)((c2 & 0x0f) << 4); + o |= (c3 & 0x3c) >> 2; + rs.append((char)o); + if (++olen >= maxolen || off >= slen) + break; + c4 = char64(s.charAt(off++)); + o = (byte)((c3 & 0x03) << 6); + o |= c4; + rs.append((char)o); + ++olen; + } + + ret = new byte[olen]; + for (off = 0; off < olen; off++) + ret[off] = (byte)rs.charAt(off); + return ret; + } + + /** + * Blowfish encipher a single 64-bit block encoded as + * two 32-bit halves + * @param lr an array containing the two 32-bit half blocks + * @param off the position in the array of the blocks + */ + private final void encipher(int lr[], int off) { + int i, n, l = lr[off], r = lr[off + 1]; + + l ^= P[0]; + for (i = 0; i <= BLOWFISH_NUM_ROUNDS - 2;) { + // Feistel substitution on left word + n = S[(l >> 24) & 0xff]; + n += S[0x100 | ((l >> 16) & 0xff)]; + n ^= S[0x200 | ((l >> 8) & 0xff)]; + n += S[0x300 | (l & 0xff)]; + r ^= n ^ P[++i]; + + // Feistel substitution on right word + n = S[(r >> 24) & 0xff]; + n += S[0x100 | ((r >> 16) & 0xff)]; + n ^= S[0x200 | ((r >> 8) & 0xff)]; + n += S[0x300 | (r & 0xff)]; + l ^= n ^ P[++i]; + } + lr[off] = r ^ P[BLOWFISH_NUM_ROUNDS + 1]; + lr[off + 1] = l; + } + + /** + * Cycically extract a word of key material + * @param data the string to extract the data from + * @param offp a "pointer" (as a one-entry array) to the + * current offset into data + * @return the next word of material from data + */ + private static int streamtoword(byte data[], int offp[]) { + int i; + int word = 0; + int off = offp[0]; + + for (i = 0; i < 4; i++) { + word = (word << 8) | (data[off] & 0xff); + off = (off + 1) % data.length; + } + + offp[0] = off; + return word; + } + + /** + * Initialise the Blowfish key schedule + */ + private void init_key() { + P = (int[])P_orig.clone(); + S = (int[])S_orig.clone(); + } + + /** + * Key the Blowfish cipher + * @param key an array containing the key + */ + private void key(byte key[]) { + int i; + int koffp[] = { 0 }; + int lr[] = { 0, 0 }; + int plen = P.length, slen = S.length; + + for (i = 0; i < plen; i++) + P[i] = P[i] ^ streamtoword(key, koffp); + + for (i = 0; i < plen; i += 2) { + encipher(lr, 0); + P[i] = lr[0]; + P[i + 1] = lr[1]; + } + + for (i = 0; i < slen; i += 2) { + encipher(lr, 0); + S[i] = lr[0]; + S[i + 1] = lr[1]; + } + } + + /** + * Perform the "enhanced key schedule" step described by + * Provos and Mazieres in "A Future-Adaptable Password Scheme" + * http://www.openbsd.org/papers/bcrypt-paper.ps + * @param data salt information + * @param key password information + */ + private void ekskey(byte data[], byte key[]) { + int i; + int koffp[] = { 0 }, doffp[] = { 0 }; + int lr[] = { 0, 0 }; + int plen = P.length, slen = S.length; + + for (i = 0; i < plen; i++) + P[i] = P[i] ^ streamtoword(key, koffp); + + for (i = 0; i < plen; i += 2) { + lr[0] ^= streamtoword(data, doffp); + lr[1] ^= streamtoword(data, doffp); + encipher(lr, 0); + P[i] = lr[0]; + P[i + 1] = lr[1]; + } + + for (i = 0; i < slen; i += 2) { + lr[0] ^= streamtoword(data, doffp); + lr[1] ^= streamtoword(data, doffp); + encipher(lr, 0); + S[i] = lr[0]; + S[i + 1] = lr[1]; + } + } + + /** + * Perform the central password hashing step in the + * bcrypt scheme + * @param password the password to hash + * @param salt the binary salt to hash with the password + * @param log_rounds the binary logarithm of the number + * of rounds of hashing to apply + * @param cdata the plaintext to encrypt + * @return an array containing the binary hashed password + */ + public byte[] crypt_raw(byte password[], byte salt[], int log_rounds, + int cdata[]) { + int rounds, i, j; + int clen = cdata.length; + byte ret[]; + + if (log_rounds < 4 || log_rounds > 30) + throw new IllegalArgumentException ("Bad number of rounds"); + rounds = 1 << log_rounds; + if (salt.length != BCRYPT_SALT_LEN) + throw new IllegalArgumentException ("Bad salt length"); + + init_key(); + ekskey(salt, password); + for (i = 0; i != rounds; i++) { + key(password); + key(salt); + } + + for (i = 0; i < 64; i++) { + for (j = 0; j < (clen >> 1); j++) + encipher(cdata, j << 1); + } + + ret = new byte[clen * 4]; + for (i = 0, j = 0; i < clen; i++) { + ret[j++] = (byte)((cdata[i] >> 24) & 0xff); + ret[j++] = (byte)((cdata[i] >> 16) & 0xff); + ret[j++] = (byte)((cdata[i] >> 8) & 0xff); + ret[j++] = (byte)(cdata[i] & 0xff); + } + return ret; + } + + /** + * Hash a password using the OpenBSD bcrypt scheme + * @param password the password to hash + * @param salt the salt to hash with (perhaps generated + * using BCrypt.gensalt) + * @return the hashed password + */ + public static String hashpw(String password, String salt) { + BCrypt B; + String real_salt; + byte passwordb[], saltb[], hashed[]; + char minor = (char)0; + int rounds, off = 0; + StringBuffer rs = new StringBuffer(); + + if (salt.charAt(0) != '$' || salt.charAt(1) != '2') + throw new IllegalArgumentException ("Invalid salt version"); + if (salt.charAt(2) == '$') + off = 3; + else { + minor = salt.charAt(2); + if (minor != 'a' || salt.charAt(3) != '$') + throw new IllegalArgumentException ("Invalid salt revision"); + off = 4; + } + + // Extract number of rounds + if (salt.charAt(off + 2) > '$') + throw new IllegalArgumentException ("Missing salt rounds"); + rounds = Integer.parseInt(salt.substring(off, off + 2)); + + real_salt = salt.substring(off + 3, off + 25); + try { + passwordb = (password + (minor >= 'a' ? "\000" : "")).getBytes("UTF-8"); + } catch (UnsupportedEncodingException uee) { + throw new AssertionError("UTF-8 is not supported"); + } + + saltb = decode_base64(real_salt, BCRYPT_SALT_LEN); + + B = new BCrypt(); + hashed = B.crypt_raw(passwordb, saltb, rounds, + (int[])bf_crypt_ciphertext.clone()); + + rs.append("$2"); + if (minor >= 'a') + rs.append(minor); + rs.append("$"); + if (rounds < 10) + rs.append("0"); + if (rounds > 30) { + throw new IllegalArgumentException( + "rounds exceeds maximum (30)"); + } + rs.append(Integer.toString(rounds)); + rs.append("$"); + rs.append(encode_base64(saltb, saltb.length)); + rs.append(encode_base64(hashed, + bf_crypt_ciphertext.length * 4 - 1)); + return rs.toString(); + } + + /** + * Generate a salt for use with the BCrypt.hashpw() method + * @param log_rounds the log2 of the number of rounds of + * hashing to apply - the work factor therefore increases as + * 2**log_rounds. + * @param random an instance of SecureRandom to use + * @return an encoded salt value + */ + public static String gensalt(int log_rounds, SecureRandom random) { + StringBuffer rs = new StringBuffer(); + byte rnd[] = new byte[BCRYPT_SALT_LEN]; + + random.nextBytes(rnd); + + rs.append("$2a$"); + if (log_rounds < 10) + rs.append("0"); + if (log_rounds > 30) { + throw new IllegalArgumentException( + "log_rounds exceeds maximum (30)"); + } + rs.append(Integer.toString(log_rounds)); + rs.append("$"); + rs.append(encode_base64(rnd, rnd.length)); + return rs.toString(); + } + + /** + * Generate a salt for use with the BCrypt.hashpw() method + * @param log_rounds the log2 of the number of rounds of + * hashing to apply - the work factor therefore increases as + * 2**log_rounds. + * @return an encoded salt value + */ + public static String gensalt(int log_rounds) { + return gensalt(log_rounds, new SecureRandom()); + } + + /** + * Generate a salt for use with the BCrypt.hashpw() method, + * selecting a reasonable default for the number of hashing + * rounds to apply + * @return an encoded salt value + */ + public static String gensalt() { + return gensalt(GENSALT_DEFAULT_LOG2_ROUNDS); + } + + /** + * Check that a plaintext password matches a previously hashed + * one + * @param plaintext the plaintext password to verify + * @param hashed the previously-hashed password + * @return true if the passwords match, false otherwise + */ + public static boolean checkpw(String plaintext, String hashed) { + byte hashed_bytes[]; + byte try_bytes[]; + try { + String try_pw = hashpw(plaintext, hashed); + hashed_bytes = hashed.getBytes("UTF-8"); + try_bytes = try_pw.getBytes("UTF-8"); + } catch (UnsupportedEncodingException uee) { + return false; + } + if (hashed_bytes.length != try_bytes.length) + return false; + byte ret = 0; + for (int i = 0; i < try_bytes.length; i++) + ret |= hashed_bytes[i] ^ try_bytes[i]; + return ret == 0; + } +} \ No newline at end of file