001
014
015 package com.liferay.portal.security.pwd;
016
017 import com.liferay.portal.UserPasswordException;
018 import com.liferay.portal.kernel.exception.PortalException;
019 import com.liferay.portal.kernel.exception.SystemException;
020 import com.liferay.portal.kernel.util.ArrayUtil;
021 import com.liferay.portal.kernel.util.Randomizer;
022 import com.liferay.portal.kernel.util.StringBundler;
023 import com.liferay.portal.model.PasswordPolicy;
024 import com.liferay.portal.model.User;
025 import com.liferay.portal.service.PasswordTrackerLocalServiceUtil;
026 import com.liferay.portal.service.UserLocalServiceUtil;
027 import com.liferay.portal.util.PropsValues;
028 import com.liferay.portal.words.WordsUtil;
029 import com.liferay.util.PwdGenerator;
030
031 import java.util.Arrays;
032 import java.util.Date;
033
034
038 public class PasswordPolicyToolkit extends BasicToolkit {
039
040 public PasswordPolicyToolkit() {
041 _lowerCaseCharsetArray = getSortedCharArray(
042 PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_LOWERCASE);
043 _numbersCharsetArray = getSortedCharArray(
044 PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_NUMBERS);
045 _symbolsCharsetArray = getSortedCharArray(
046 PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_SYMBOLS);
047 _upperCaseCharsetArray = getSortedCharArray(
048 PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_UPPERCASE);
049
050 _alphanumericCharsetArray = ArrayUtil.append(
051 _lowerCaseCharsetArray, _upperCaseCharsetArray,
052 _numbersCharsetArray);
053
054 Arrays.sort(_alphanumericCharsetArray);
055
056 StringBundler sb = new StringBundler(4);
057
058 sb.append(
059 PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_LOWERCASE);
060 sb.append(PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_NUMBERS);
061 sb.append(PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_SYMBOLS);
062 sb.append(
063 PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_UPPERCASE);
064
065 _completeCharset = sb.toString();
066 }
067
068 @Override
069 public String generate(PasswordPolicy passwordPolicy) {
070 if (PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_GENERATOR.equals(
071 "static")) {
072
073 return generateStatic(passwordPolicy);
074 }
075 else {
076 return generateDynamic(passwordPolicy);
077 }
078 }
079
080 @Override
081 public void validate(
082 long userId, String password1, String password2,
083 PasswordPolicy passwordPolicy)
084 throws PortalException, SystemException {
085
086 if (passwordPolicy.isCheckSyntax()) {
087 if (!passwordPolicy.isAllowDictionaryWords() &&
088 WordsUtil.isDictionaryWord(password1)) {
089
090 throw new UserPasswordException(
091 UserPasswordException.PASSWORD_CONTAINS_TRIVIAL_WORDS);
092 }
093
094 if (password1.length() < passwordPolicy.getMinLength()) {
095 throw new UserPasswordException(
096 UserPasswordException.PASSWORD_LENGTH);
097 }
098
099 if ((getUsageCount(password1, _alphanumericCharsetArray) <
100 passwordPolicy.getMinAlphanumeric()) ||
101 (getUsageCount(password1, _lowerCaseCharsetArray) <
102 passwordPolicy.getMinLowerCase()) ||
103 (getUsageCount(password1, _numbersCharsetArray) <
104 passwordPolicy.getMinNumbers()) ||
105 (getUsageCount(password1, _symbolsCharsetArray) <
106 passwordPolicy.getMinSymbols()) ||
107 (getUsageCount(password1, _upperCaseCharsetArray) <
108 passwordPolicy.getMinUpperCase())) {
109
110 throw new UserPasswordException(
111 UserPasswordException.PASSWORD_TOO_TRIVIAL);
112 }
113 }
114
115 if (!passwordPolicy.isChangeable()) {
116 throw new UserPasswordException(
117 UserPasswordException.PASSWORD_NOT_CHANGEABLE);
118 }
119
120 if (userId != 0) {
121 User user = UserLocalServiceUtil.getUserById(userId);
122
123 Date passwordModfiedDate = user.getPasswordModifiedDate();
124
125 if (passwordModfiedDate != null) {
126
127
128
129 Date now = new Date();
130
131 long passwordModificationElapsedTime =
132 now.getTime() - passwordModfiedDate.getTime();
133
134 long userCreationElapsedTime =
135 now.getTime() - user.getCreateDate().getTime();
136
137 long minAge = passwordPolicy.getMinAge() * 1000;
138
139 if ((passwordModificationElapsedTime < minAge) &&
140 (userCreationElapsedTime > minAge)) {
141
142 throw new UserPasswordException(
143 UserPasswordException.PASSWORD_TOO_YOUNG);
144 }
145 }
146
147 if (PasswordTrackerLocalServiceUtil.isSameAsCurrentPassword(
148 userId, password1)) {
149
150 throw new UserPasswordException(
151 UserPasswordException.PASSWORD_SAME_AS_CURRENT);
152 }
153 else if (!PasswordTrackerLocalServiceUtil.isValidPassword(
154 userId, password1)) {
155
156 throw new UserPasswordException(
157 UserPasswordException.PASSWORD_ALREADY_USED);
158 }
159 }
160 }
161
162 protected String generateDynamic(PasswordPolicy passwordPolicy) {
163 int alphanumericMinLength = Math.max(
164 passwordPolicy.getMinAlphanumeric(),
165 passwordPolicy.getMinLowerCase() + passwordPolicy.getMinNumbers() +
166 passwordPolicy.getMinUpperCase());
167 int passwordMinLength = Math.max(
168 passwordPolicy.getMinLength(),
169 alphanumericMinLength + passwordPolicy.getMinSymbols());
170
171 StringBundler sb = new StringBundler(passwordMinLength);
172
173 if (passwordPolicy.getMinLowerCase() > 0) {
174 sb.append(
175 getRandomString(
176 passwordPolicy.getMinLowerCase(), _lowerCaseCharsetArray));
177 }
178
179 if (passwordPolicy.getMinNumbers() > 0) {
180 sb.append(
181 getRandomString(
182 passwordPolicy.getMinNumbers(), _numbersCharsetArray));
183 }
184
185 if (passwordPolicy.getMinSymbols() > 0) {
186 sb.append(
187 getRandomString(
188 passwordPolicy.getMinSymbols(), _symbolsCharsetArray));
189 }
190
191 if (passwordPolicy.getMinUpperCase() > 0) {
192 sb.append(
193 getRandomString(
194 passwordPolicy.getMinUpperCase(), _upperCaseCharsetArray));
195 }
196
197 if (alphanumericMinLength > passwordPolicy.getMinAlphanumeric()) {
198 int count =
199 alphanumericMinLength - passwordPolicy.getMinAlphanumeric();
200
201 sb.append(getRandomString(count, _alphanumericCharsetArray));
202 }
203
204 if (passwordMinLength >
205 (alphanumericMinLength + passwordPolicy.getMinSymbols())) {
206
207 int count =
208 passwordMinLength - (alphanumericMinLength +
209 passwordPolicy.getMinSymbols());
210
211 sb.append(PwdGenerator.getPassword(_completeCharset, count));
212 }
213
214 Randomizer randomizer = Randomizer.getInstance();
215
216 return randomizer.randomize(sb.toString());
217 }
218
219 protected String generateStatic(PasswordPolicy passwordPolicy) {
220 return PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_STATIC;
221 }
222
223 protected String getRandomString(int count, char[] chars) {
224 StringBundler sb = new StringBundler(count);
225
226 Randomizer randomizer = Randomizer.getInstance();
227
228 for (int i = 0; i < count; i++) {
229 int index = randomizer.nextInt(chars.length);
230
231 sb.append(chars[index]);
232 }
233
234 return sb.toString();
235 }
236
237 protected char[] getSortedCharArray(String s) {
238 char[] chars = s.toCharArray();
239
240 Arrays.sort(chars);
241
242 return chars;
243 }
244
245 protected int getUsageCount(String s, char[] chars) {
246 int count = 0;
247
248 for (int i = 0; i < s.length(); i++) {
249 if (Arrays.binarySearch(chars, s.charAt(i)) >= 0) {
250 count++;
251 }
252 }
253
254 return count;
255 }
256
257 private char[] _alphanumericCharsetArray;
258 private String _completeCharset;
259 private char[] _lowerCaseCharsetArray;
260 private char[] _numbersCharsetArray;
261 private char[] _symbolsCharsetArray;
262 private char[] _upperCaseCharsetArray;
263
264 }