1 | /*
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2 | * -----------------------------------------------------------------------------
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3 | *
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4 | * <p><b>License and Copyright: </b>The contents of this file are subject
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5 | * to the Educational Community License (the "License"); you may not use
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6 | * this file except in compliance with the License. You may obtain a copy
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7 | * of the License at <a href="http://www.opensource.org/licenses/ecl1.txt">
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8 | * http://www.opensource.org/licenses/ecl1.txt.</a></p>
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9 | *
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10 | * <p>Software distributed under the License is distributed on an "AS IS"
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11 | * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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12 | * License for the specific language governing rights and limitations under
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13 | * the License.</p>
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14 | *
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15 | * <p>The entire file consists of original code. Copyright ©
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16 | * 2002-2007 by The Rector and Visitors of the University of Virginia and
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17 | * Cornell University. All rights reserved.</p>
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18 | *
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19 | * -----------------------------------------------------------------------------
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20 | */
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21 |
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22 |
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23 | /* Based on Fedora's Client LoginDialog.java code */
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24 | /* Modified to work with Greenstone: 22 Jan 2008 */
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25 |
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26 | package org.greenstone.gatherer.gui;
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27 |
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28 | import java.awt.BorderLayout;
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29 | import java.awt.Container;
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30 | import java.awt.Dimension;
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31 | import java.awt.GridBagConstraints;
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32 | import java.awt.GridBagLayout;
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33 | import java.awt.Insets;
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34 | import java.awt.event.ActionEvent;
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35 | import java.awt.event.WindowAdapter;
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36 | import java.awt.event.WindowEvent;
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37 |
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38 | import java.io.File;
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39 | import java.io.FileInputStream;
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40 | import java.io.FileOutputStream;
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41 | import java.io.IOException;
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42 |
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43 | import java.util.Enumeration;
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44 | import java.util.HashMap;
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45 | import java.util.Iterator;
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46 | import java.util.List;
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47 | import java.util.Properties;
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48 |
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49 | import javax.swing.AbstractAction;
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50 | import javax.swing.BorderFactory;
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51 | import javax.swing.JButton;
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52 | import javax.swing.JComboBox;
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53 | import javax.swing.JComponent;
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54 | import javax.swing.JDialog;
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55 | import javax.swing.JLabel;
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56 | import javax.swing.JOptionPane;
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57 | import javax.swing.JPanel;
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58 | import javax.swing.JPasswordField;
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59 | import javax.swing.event.DocumentEvent;
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60 | import javax.swing.event.DocumentListener;
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61 |
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62 | import java.awt.Rectangle;
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63 | import java.awt.Toolkit;
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64 | import org.greenstone.gatherer.Dictionary;
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65 |
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66 |
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67 |
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68 | import org.greenstone.gatherer.Gatherer;
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69 | import org.greenstone.gatherer.Configuration;
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70 |
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71 | public class FedoraLogin extends JDialog
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72 | {
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73 | private static final int MAX_ITEMS = 5;
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74 |
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75 | private static final java.awt.Color LIGHT = new java.awt.Color(244, 244, 224);
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76 | private static final java.awt.Color TRANSPARENT = new java.awt.Color(0,0,0,0);
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77 |
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78 | private JPanel m_infoPane;
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79 | private JComboBox m_serverComboBox;
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80 | private JComboBox m_protocolComboBox;
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81 | private JComboBox m_usernameComboBox;
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82 | private JPasswordField m_passwordField;
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83 |
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84 | private String m_lastUsername="fedoraAdmin";
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85 | private String m_lastServer="localhost:8080";
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86 | private String m_lastProtocol="http";
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87 | private String m_lastPassword="";
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88 |
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89 | private boolean login_requested = false;
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90 |
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91 | public FedoraLogin(String title, boolean can_cancel)
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92 | {
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93 | super(Gatherer.g_man, "Login", true);
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94 | this.setComponentOrientation(Dictionary.getOrientation());
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95 | this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
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96 |
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97 | JLabel serverLabel=new JLabel("Fedora Server");
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98 | JLabel protocolLabel=new JLabel("Protocol");
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99 | JLabel usernameLabel=new JLabel("Username");
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100 | JLabel passwordLabel=new JLabel("Password");
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101 |
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102 | serverLabel.setComponentOrientation(Dictionary.getOrientation());
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103 | protocolLabel.setComponentOrientation(Dictionary.getOrientation());
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104 | usernameLabel.setComponentOrientation(Dictionary.getOrientation());
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105 | passwordLabel.setComponentOrientation(Dictionary.getOrientation());
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106 |
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107 | m_serverComboBox=new JComboBox(new String[]{m_lastServer});
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108 | m_serverComboBox.setComponentOrientation(Dictionary.getOrientation());
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109 | m_serverComboBox.setEditable(true);
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110 | m_protocolComboBox=new JComboBox(new String[]{m_lastProtocol, "https"}); // http and https
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111 | m_protocolComboBox.setComponentOrientation(Dictionary.getOrientation());
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112 | m_protocolComboBox.setEditable(true);
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113 | m_usernameComboBox=new JComboBox(new String[]{m_lastUsername});
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114 | m_usernameComboBox.setComponentOrientation(Dictionary.getOrientation());
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115 | m_usernameComboBox.setEditable(true);
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116 | m_passwordField=new JPasswordField();
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117 |
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118 | setComboBoxValues();
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119 |
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120 |
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121 | LoginAction loginAction=new LoginAction(this);
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122 | JButton loginButton=new JButton(loginAction);
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123 |
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124 | loginAction.setButton(loginButton);
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125 | loginButton.setEnabled(false);
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126 | this.getRootPane().setDefaultButton(loginButton);
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127 |
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128 | m_passwordField.getDocument().addDocumentListener(
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129 | new PasswordChangeListener(loginButton, m_passwordField));
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130 | m_passwordField.setAction(loginAction);
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131 |
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132 | JPanel inputPane=new JPanel();
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133 | inputPane.setComponentOrientation(Dictionary.getOrientation());
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134 | inputPane.setBorder(BorderFactory.createCompoundBorder(
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135 | BorderFactory.createCompoundBorder(
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136 | BorderFactory.createEmptyBorder(6, 6, 6, 6),
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137 | BorderFactory.createEtchedBorder()
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138 | ),
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139 | BorderFactory.createEmptyBorder(6,6,6,6)
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140 | ));
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141 | GridBagLayout gridBag=new GridBagLayout();
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142 | inputPane.setLayout(gridBag);
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143 | addLabelValueRows(new JLabel[] {serverLabel, protocolLabel, usernameLabel, passwordLabel},
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144 | new JComponent[] {m_serverComboBox, m_protocolComboBox, m_usernameComboBox, m_passwordField},
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145 | gridBag, inputPane);
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146 |
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147 | // handling Closing and cancelling events
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148 | this.addWindowListener(new WindowAdapter() {
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149 | public void windowClosing(WindowEvent e){
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150 | // this is important, if we want to stop looping on displaying the dialog:
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151 | login_requested = false;
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152 | //dispose(); // defaultCloseOperation of this dialog already set to dispose it
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153 | }
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154 | });
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155 |
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156 | JButton cancelButton=new JButton(new AbstractAction() {
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157 | private static final long serialVersionUID = 1L;
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158 | public void actionPerformed(ActionEvent evt) {
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159 | // this is important, if we want to stop looping on displaying the dialog:
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160 | login_requested = false;
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161 | dispose();
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162 | }
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163 | });
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164 |
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165 | cancelButton.setText("Exit"); // if haven't logged in yet
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166 |
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167 | JPanel buttonPane=new JPanel();
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168 | buttonPane.setComponentOrientation(Dictionary.getOrientation());
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169 | buttonPane.add(loginButton);
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170 | buttonPane.add(cancelButton);
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171 | Container contentPane=getContentPane();
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172 | contentPane.setComponentOrientation(Dictionary.getOrientation());
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173 |
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174 | contentPane.setLayout(new BorderLayout());
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175 | m_infoPane = new JPanel();
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176 | m_infoPane.setComponentOrientation(Dictionary.getOrientation());
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177 | m_infoPane.setBackground(TRANSPARENT);
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178 | contentPane.add(m_infoPane, BorderLayout.NORTH);
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179 | contentPane.add(inputPane, BorderLayout.CENTER);
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180 | contentPane.add(buttonPane, BorderLayout.SOUTH);
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181 | addWindowListener(new WindowAdapter() {
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182 | public void windowOpened(WindowEvent evt) {
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183 | m_passwordField.requestFocus();
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184 | }
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185 | });
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186 | pack();
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187 |
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188 | // Position
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189 | Dimension size = getSize();
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190 | if (Gatherer.g_man != null) {
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191 | Rectangle frame_bounds = Gatherer.g_man.getBounds();
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192 | setLocation(frame_bounds.x + (frame_bounds.width - size.width) / 2, frame_bounds.y + (frame_bounds.height - size.height) / 2);
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193 | }
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194 | else {
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195 | Dimension screen_size = Toolkit.getDefaultToolkit().getScreenSize();
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196 | setLocation((screen_size.width - size.width) / 2, (screen_size.height - size.height) / 2);
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197 | }
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198 |
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199 |
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200 | setVisible(true);
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201 | }
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202 |
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203 |
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204 | public void saveProperties(JComboBox control, String affectedProperty, String editedValue) {
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205 | //String editedValue = (String)control.getSelectedItem();
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206 | // Edited value is the value in the combobox editfield, it has not yet been added to the combobox
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207 | control.insertItemAt(editedValue, 0);
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208 |
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209 | if(editedValue == null) {
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210 | editedValue = (String)control.getItemAt(0); // else reuse the first default
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211 | }
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212 | Configuration.setString(affectedProperty, true, editedValue);
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213 |
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214 | // Add the values in the combobox as well.
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215 | int value_count = 1;
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216 | for(int i = 0; value_count < MAX_ITEMS && i < control.getItemCount(); i++, value_count++) {
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217 | String value = (String)control.getItemAt(i);
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218 | if(value == null || value.equals(editedValue) || value.equals("")) {
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219 | // skip duplicates of just-edited comboBox value and empty values
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220 | value_count--;
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221 | } else {
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222 | Configuration.setString(affectedProperty+value_count, true, value);
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223 | } // else retain old value for this affectedProperty (e.g. general.gliserver_url)
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224 | }
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225 | }
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226 |
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227 | private void setComboBoxValues() {
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228 | // All comboboxes are of the same size
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229 | Dimension newSize=new Dimension(m_serverComboBox.getPreferredSize().width+20, m_serverComboBox.getPreferredSize().height);
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230 | m_passwordField.setPreferredSize(newSize);
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231 |
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232 | setComboBoxValues(m_serverComboBox, "fedora.server", newSize);
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233 | setComboBoxValues(m_protocolComboBox, "fedora.protocol", newSize);
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234 | setComboBoxValues(m_usernameComboBox, "fedora.username", newSize);
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235 | newSize = null;
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236 | }
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237 |
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238 | private void setComboBoxValues(JComboBox control, String affectedProperty, Dimension newSize) {
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239 | // get values from Configuration file, if none, it will go back to using defaultvalues
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240 | // put them into the combobox
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241 |
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242 | String value = Configuration.getString(affectedProperty, true);
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243 | boolean finished = value.equals("");
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244 | if(!finished) {
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245 | control.removeAllItems(); // remove defaults, since config file now contains init values
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246 | control.addItem(value);
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247 | } // else value and combobox already contains the defaults
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248 |
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249 |
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250 | for(int i = 1; !finished; i++) {
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251 | value = Configuration.getString(affectedProperty+i, true);
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252 | if(value.equals("")) {
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253 | finished = true;
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254 | }
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255 | else { // value is not empty
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256 | control.addItem(value);
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257 | }
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258 | }
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259 |
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260 | // setting the size of the dropdown control
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261 | control.setPreferredSize(newSize);
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262 | }
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263 |
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264 | public void addLabelValueRows(JLabel[] labels, JComponent[] values,
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265 | GridBagLayout gridBag, Container container) {
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266 | GridBagConstraints c=new GridBagConstraints();
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267 | c.insets=new Insets(0, 6, 6, 6);
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268 | for (int i=0; i<labels.length; i++) {
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269 | c.anchor=GridBagConstraints.EAST;
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270 | c.gridwidth=GridBagConstraints.RELATIVE; //next-to-last
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271 | c.fill=GridBagConstraints.NONE; //reset to default
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272 | c.weightx=0.0; //reset to default
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273 | gridBag.setConstraints(labels[i], c);
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274 | container.add(labels[i]);
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275 |
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276 | c.gridwidth=GridBagConstraints.REMAINDER; //end row
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277 | if (!(values[i] instanceof JComboBox)) {
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278 | c.fill=GridBagConstraints.HORIZONTAL;
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279 | } else {
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280 | c.anchor=GridBagConstraints.WEST;
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281 | }
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282 | c.weightx=1.0;
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283 | gridBag.setConstraints(values[i], c);
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284 | container.add(values[i]);
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285 | }
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286 |
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287 | }
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288 |
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289 | /** Displays the given errormessage (which is split over several lines)
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290 | * in the FedoraLogin itself
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291 | * @param errorLines: the lines of the error message, where each line
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292 | * will be presented in its own JLabel in the infoPane.
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293 | */
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294 | public void setErrorMessage(String[] errorLines) {
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295 | m_infoPane.removeAll();
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296 | m_infoPane.setBackground(LIGHT);
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297 | // n rows and 1 column
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298 | m_infoPane.setLayout(new java.awt.GridLayout(errorLines.length, 1));
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299 | for(int i = 0; i < errorLines.length; i++) {
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300 | JLabel line = new JLabel(" " + errorLines[i] + " ");
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301 | m_infoPane.add(line);
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302 | }
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303 |
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304 | // Adjust and resize this dialog to take into account the
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305 | // recently added components (labels)
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306 | m_infoPane.validate();
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307 | this.pack();
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308 | }
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309 |
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310 | public class PasswordChangeListener
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311 | implements DocumentListener {
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312 |
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313 | private JButton m_loginButton;
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314 | private JPasswordField m_passField;
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315 |
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316 | public PasswordChangeListener(JButton loginButton, JPasswordField pf) {
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317 | m_loginButton=loginButton;
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318 | m_passField=pf;
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319 | }
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320 |
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321 | public void changedUpdate(DocumentEvent e) {
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322 | dataChanged();
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323 | }
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324 |
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325 | public void insertUpdate(DocumentEvent e) {
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326 | dataChanged();
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327 | }
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328 |
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329 | public void removeUpdate(DocumentEvent e) {
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330 | dataChanged();
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331 | }
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332 |
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333 | public void dataChanged() {
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334 | if (m_passField.getPassword().length == 0) {
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335 | m_loginButton.setEnabled(false);
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336 | } else {
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337 | m_loginButton.setEnabled(true);
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338 | }
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339 | }
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340 |
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341 | }
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342 |
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343 |
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344 | public class LoginAction
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345 | extends AbstractAction {
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346 |
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347 | FedoraLogin m_loginDialog;
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348 | JButton m_button;
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349 |
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350 | public LoginAction(FedoraLogin loginDialog) {
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351 | super("Login");
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352 | m_loginDialog=loginDialog;
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353 | }
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354 |
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355 | public void setButton(JButton button) {
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356 | m_button=button;
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357 | }
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358 |
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359 | public void actionPerformed(ActionEvent evt) {
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360 |
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361 |
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362 | if (m_button.isEnabled()) {
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363 |
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364 | try {
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365 | // pull out values and do a quick syntax check
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366 | String hostPort=(String) m_serverComboBox.getSelectedItem();
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367 | int colonPos=hostPort.indexOf(":");
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368 | if (colonPos==-1) {
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369 | throw new IOException("Server must be specified as host:port");
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370 | }
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371 | String[] s=hostPort.split(":");
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372 | String host=s[0];
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373 | if (host.length()==0) {
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374 | throw new IOException("No server name provided.");
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375 | }
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376 | int port=0;
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377 | try {
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378 | port=Integer.parseInt(s[1]);
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379 | } catch (NumberFormatException nfe) {
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380 | throw new IOException("Server port must be an integer.");
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381 | }
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382 | String protocol=(String) m_protocolComboBox.getSelectedItem();
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383 | if (protocol.equals("")) {
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384 | throw new IOException("No protocol provided.");
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385 | }
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386 |
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387 | String username=(String) m_usernameComboBox.getSelectedItem();
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388 | if (username.equals("")) {
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389 | throw new IOException("No username provided.");
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390 | }
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391 | String pass = new String(m_passwordField.getPassword());
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392 |
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393 |
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394 | // all looks ok...just save stuff and exit now
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395 | m_lastServer=host + ":" + port;
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396 | m_lastProtocol=protocol;
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397 | m_lastUsername=username;
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398 | m_lastPassword=pass;
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399 |
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400 | m_loginDialog.saveProperties(m_serverComboBox, "fedora.server", m_lastServer);
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401 | m_loginDialog.saveProperties(m_protocolComboBox, "fedora.protocol", m_lastProtocol);
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402 | m_loginDialog.saveProperties(m_usernameComboBox, "fedora.username", m_lastUsername);
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403 |
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404 | // now save these values to the Configuration file
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405 | Configuration.save();
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406 |
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407 | login_requested = true;
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408 |
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409 | // hiding it instead of disposing it on OK-press allows us to loop
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410 | // on displaying the dialog in case there's more checking to do
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411 | m_loginDialog.setVisible(false);
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412 |
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413 | } catch (Exception e) {
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414 | //String msg = e.getMessage();
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415 | //System.err.println(msg);
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416 |
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417 | e.printStackTrace();
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418 |
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419 | }
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420 | }
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421 | }
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422 | }
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423 |
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424 | public boolean loginRequested()
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425 | {
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426 | return login_requested;
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427 | }
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428 |
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429 | public String getLibraryURL()
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430 | {
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431 | String libraryUrl = m_lastProtocol + "://" + m_lastServer + "/fedora/search";
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432 |
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433 | return libraryUrl;
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434 | }
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435 |
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436 | public String getHostname()
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437 | {
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438 | String[] s=m_lastServer.split(":");
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439 | String host=s[0];
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440 | return host;
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441 | }
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442 | public String getPort()
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443 | {
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444 | String[] s=m_lastServer.split(":");
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445 |
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446 | String port = s[1];
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447 | return port;
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448 | }
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449 |
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450 | public String getUsername()
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451 | {
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452 | return m_lastUsername;
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453 | }
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454 |
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455 | public String getPassword()
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456 | {
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457 | return m_lastPassword;
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458 | }
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459 |
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460 | public String getProtocol()
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461 | {
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462 | return m_lastProtocol;
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463 | }
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464 |
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465 |
|
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466 | }
|
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