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1 package net.suberic.util.gui.propedit;
2 import javax.swing.*;
3 import java.awt.event.*;
4 import net.suberic.util.*;
5 import java.awt.FlowLayout  ;
6
7 public class PasswordEditorPane extends StringEditorPane {
8 String originalScrambledValue;
9
10
17 public void configureEditor(String propertyName, String template, String propertyBaseName, PropertyEditorManager newManager) {
18 configureBasic(propertyName, template, propertyBaseName, newManager);
19
20 originalScrambledValue = manager.getProperty(property, "");
21 if (!originalScrambledValue.equals(""))
22 originalValue = descrambleString(originalScrambledValue);
23 else
24 originalValue = "";
25 currentValue = originalValue;
26
27 getLogger().fine("property is " + property + "; editorTemplate is " + editorTemplate);
28
29 label = createLabel();
30
31 inputField = new JPasswordField(originalValue);
32 inputField.setPreferredSize(new java.awt.Dimension (150, inputField.getMinimumSize().height));
33 inputField.setMaximumSize(new java.awt.Dimension (Integer.MAX_VALUE, inputField.getMinimumSize().height));
34 inputField.addFocusListener(new FocusAdapter() {
35 public void focusLost(FocusEvent e) {
36 String newPassword = new String (((JPasswordField)inputField).getPassword());
37 if (! newPassword.equals(currentValue)) {
38 try {
39 firePropertyChangingEvent(newPassword);
40 firePropertyChangedEvent(newPassword);
41 currentValue = newPassword;
42 } catch (PropertyValueVetoException pvve) {
43 manager.getFactory().showError(inputField, "Error changing value " + label.getText() + ": " + pvve.getReason());
44 inputField.setText(currentValue);
45 }
46 }
47 }
48
49 public void focusGained(FocusEvent e) {
50 if (inputField.getText() != null && inputField.getText().length() > 0) {
51 inputField.setSelectionStart(0);
52 inputField.setSelectionEnd(inputField.getText().length());
53 }
54 }
55
56 });
57 this.add(label);
58 this.add(inputField);
59 updateEditorEnabled();
60
61 labelComponent = label;
62 valueComponent = inputField;
63
64 }
66
67
71 public void setValue() throws PropertyValueVetoException {
72 String value = new String (((JPasswordField)inputField).getPassword());
73
74 if (isEditorEnabled() && ! (value.equals(currentValue))) {
75 firePropertyChangingEvent(value);
76 firePropertyChangedEvent(value);
77 }
78
79 if (isEditorEnabled() && !(value.equals(originalValue))) {
80 manager.setProperty(property, scrambleString(value));
81 originalValue = value;
82 }
83 }
84
85
89 public java.util.Properties getValue() {
90 String value = new String (((JPasswordField)inputField).getPassword());
91 java.util.Properties retProps = new java.util.Properties ();
92 if (value.equals(originalValue))
93 retProps.setProperty(property, originalScrambledValue);
94 else
95 retProps.setProperty(property, scrambleString(value));
96 return retProps;
97 }
98
99
103 public void resetDefaultValue() {
104 String fieldValue = new String (((JPasswordField)inputField).getPassword());
105 if (! (fieldValue.equals(currentValue) && fieldValue.equals(originalValue))) {
106 try {
108 if (! currentValue.equals(originalValue)) {
109 firePropertyChangingEvent(originalValue);
110 firePropertyChangedEvent(originalValue);
111 currentValue = originalValue;
112 }
113 inputField.setText(originalValue);
114 } catch (PropertyValueVetoException pvve) {
115 manager.getFactory().showError(inputField, "Error changing value " + label.getText() + " to " + originalValue + ": " + pvve.getReason());
116 }
117 }
118 }
119
120 private static char[] scrambleChars = new char[] {'A', 'a', 'B', 'b', 'C', 'c', 'D', 'd', 'E', 'e', 'F', 'f', 'G', 'g', 'H', 'h', 'I', 'i', 'J', 'j', 'K', 'k', 'L', 'l', 'M', 'm', 'N', 'n', 'O', 'o', 'P', 'p', 'Q', 'q', 'R', 'r', 'S', 's', 'T', 't', 'U', 'u', 'V', 'v', 'W', 'w', 'X', 'x', 'Y', 'y', 'Z', 'z'};
122
123
126 public static String scrambleString(String key) {
127 int[] salt = new int[4];
128 int keySize = key.length();
129 long seed = System.currentTimeMillis();
130
131 salt[0] = (int)((seed / 107) % 2704);
132 salt[1] = (int)((seed / 19) % 2704);
133 salt[2] = (int)((seed / 17) % 2704);
134 salt[3] = (int)((seed / 91) % 2704);
135
136 char [] scrambledString = new char[(keySize * 2) + 8];
137
138 for (int i = 0; i < keySize; i++) {
139 int numValue = (int)(key.charAt(i));
140 numValue = (numValue + salt[i % 4]) % 2704;
141 scrambledString[i * 2] = scrambleChars[numValue / 52];
142 scrambledString[(i * 2) + 1] = scrambleChars[numValue % 52];
143 }
144
145 for (int i = 0; i < 3; i++) {
146 int numValue = (salt[i] + salt[i + 1]) % 2704;
147 scrambledString[(keySize + i) * 2] = scrambleChars[numValue / 52];
148 scrambledString[((keySize + i) * 2) + 1] = scrambleChars[numValue % 52];
149 }
150
151 scrambledString[(keySize + 3) * 2] = scrambleChars[salt[3] / 52];
152 scrambledString[((keySize + 3) * 2) + 1] = scrambleChars[salt[3] % 52];
153
154 return new String (scrambledString);
155 }
156
157
160 public static String descrambleString(String value) {
161 int[] salt = new int[4];
162 int scrambleSize = value.length();
163 char[] key = new char[(scrambleSize - 8) / 2];
164 salt[3] = (findCharValue(value.charAt(scrambleSize - 2)) * 52) + findCharValue(value.charAt(scrambleSize - 1));
165
166 for (int i = 2; i >= 0; i--) {
167 salt[i] = (2704 - salt[i + 1] + (findCharValue(value.charAt(scrambleSize - ((4 - i) * 2) )) * 52) + findCharValue(value.charAt(scrambleSize - ((4 - i) * 2) + 1))) % 2704;
168 }
169
170 for (int i = 0; i < (scrambleSize - 8) / 2; i++) {
171 key[i] = (char)((2704 - salt[i % 4] + (findCharValue(value.charAt(i * 2)) * 52) + findCharValue(value.charAt((i * 2) + 1))) % 2704);
172 }
173
174 return new String (key);
175 }
176
177
181 private static int findCharValue(char a) {
182 for (int i = 0; i < scrambleChars.length; i++)
183 if (a == scrambleChars[i])
184 return i;
185
186 return 0;
187 }
188
189 }
190 |
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