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.security.RandomUtil;
021 import com.liferay.portal.kernel.security.SecureRandom;
022 import com.liferay.portal.kernel.util.ArrayUtil;
023 import com.liferay.portal.kernel.util.StringBundler;
024 import com.liferay.portal.kernel.util.Validator;
025 import com.liferay.portal.model.PasswordPolicy;
026 import com.liferay.portal.model.User;
027 import com.liferay.portal.service.PasswordTrackerLocalServiceUtil;
028 import com.liferay.portal.service.UserLocalServiceUtil;
029 import com.liferay.portal.util.PropsValues;
030 import com.liferay.portal.words.WordsUtil;
031 import com.liferay.util.PwdGenerator;
032
033 import java.util.Arrays;
034 import java.util.Date;
035 import java.util.Random;
036
037
041 public class PasswordPolicyToolkit extends BasicToolkit {
042
043 public PasswordPolicyToolkit() {
044 _lowerCaseCharsetArray = getSortedCharArray(
045 PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_LOWERCASE);
046 _numbersCharsetArray = getSortedCharArray(
047 PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_NUMBERS);
048 _symbolsCharsetArray = getSortedCharArray(
049 PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_SYMBOLS);
050 _upperCaseCharsetArray = getSortedCharArray(
051 PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_UPPERCASE);
052
053 _alphanumericCharsetArray = ArrayUtil.append(
054 _lowerCaseCharsetArray, _upperCaseCharsetArray,
055 _numbersCharsetArray);
056
057 Arrays.sort(_alphanumericCharsetArray);
058
059 StringBundler sb = new StringBundler(4);
060
061 sb.append(
062 PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_LOWERCASE);
063 sb.append(PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_NUMBERS);
064 sb.append(PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_SYMBOLS);
065 sb.append(
066 PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_CHARSET_UPPERCASE);
067
068 _completeCharset = sb.toString();
069 }
070
071 @Override
072 public String generate(PasswordPolicy passwordPolicy) {
073 if (PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_GENERATOR.equals(
074 "static")) {
075
076 return generateStatic(passwordPolicy);
077 }
078 else {
079 return generateDynamic(passwordPolicy);
080 }
081 }
082
083 @Override
084 public void validate(
085 long userId, String password1, String password2,
086 PasswordPolicy passwordPolicy)
087 throws PortalException, SystemException {
088
089 if (passwordPolicy.isCheckSyntax()) {
090 if (!passwordPolicy.isAllowDictionaryWords() &&
091 WordsUtil.isDictionaryWord(password1)) {
092
093 throw new UserPasswordException(
094 UserPasswordException.PASSWORD_CONTAINS_TRIVIAL_WORDS);
095 }
096
097 if (password1.length() < passwordPolicy.getMinLength()) {
098 throw new UserPasswordException(
099 UserPasswordException.PASSWORD_LENGTH);
100 }
101
102 if ((getUsageCount(password1, _alphanumericCharsetArray) <
103 passwordPolicy.getMinAlphanumeric()) ||
104 (getUsageCount(password1, _lowerCaseCharsetArray) <
105 passwordPolicy.getMinLowerCase()) ||
106 (getUsageCount(password1, _numbersCharsetArray) <
107 passwordPolicy.getMinNumbers()) ||
108 (getUsageCount(password1, _symbolsCharsetArray) <
109 passwordPolicy.getMinSymbols()) ||
110 (getUsageCount(password1, _upperCaseCharsetArray) <
111 passwordPolicy.getMinUpperCase())) {
112
113 throw new UserPasswordException(
114 UserPasswordException.PASSWORD_TOO_TRIVIAL);
115 }
116
117 if (Validator.isNotNull(passwordPolicy.getRegex()) &&
118 !password1.matches(passwordPolicy.getRegex())) {
119
120 throw new UserPasswordException(
121 UserPasswordException.PASSWORD_INVALID);
122 }
123 }
124
125 if (!passwordPolicy.isChangeable() && (userId != 0)) {
126 throw new UserPasswordException(
127 UserPasswordException.PASSWORD_NOT_CHANGEABLE);
128 }
129
130 if (userId == 0) {
131 return;
132 }
133
134 User user = UserLocalServiceUtil.getUserById(userId);
135
136 Date passwordModfiedDate = user.getPasswordModifiedDate();
137
138 if (passwordModfiedDate != null) {
139 Date now = new Date();
140
141 long passwordModificationElapsedTime =
142 now.getTime() - passwordModfiedDate.getTime();
143
144 long minAge = passwordPolicy.getMinAge() * 1000;
145
146 if ((passwordModificationElapsedTime < minAge) &&
147 !user.getPasswordReset()) {
148
149 throw new UserPasswordException(
150 UserPasswordException.PASSWORD_TOO_YOUNG);
151 }
152 }
153
154 if (PasswordTrackerLocalServiceUtil.isSameAsCurrentPassword(
155 userId, password1)) {
156
157 throw new UserPasswordException(
158 UserPasswordException.PASSWORD_SAME_AS_CURRENT);
159 }
160 else if (!PasswordTrackerLocalServiceUtil.isValidPassword(
161 userId, password1)) {
162
163 throw new UserPasswordException(
164 UserPasswordException.PASSWORD_ALREADY_USED);
165 }
166 }
167
168 protected String generateDynamic(PasswordPolicy passwordPolicy) {
169 int alphanumericActualMinLength =
170 passwordPolicy.getMinLowerCase() + passwordPolicy.getMinNumbers() +
171 passwordPolicy.getMinUpperCase();
172
173 int alphanumericMinLength = Math.max(
174 passwordPolicy.getMinAlphanumeric(), alphanumericActualMinLength);
175 int passwordMinLength = Math.max(
176 passwordPolicy.getMinLength(),
177 alphanumericMinLength + passwordPolicy.getMinSymbols());
178
179 StringBundler sb = new StringBundler(6);
180
181 if (passwordPolicy.getMinLowerCase() > 0) {
182 sb.append(
183 getRandomString(
184 passwordPolicy.getMinLowerCase(), _lowerCaseCharsetArray));
185 }
186
187 if (passwordPolicy.getMinNumbers() > 0) {
188 sb.append(
189 getRandomString(
190 passwordPolicy.getMinNumbers(), _numbersCharsetArray));
191 }
192
193 if (passwordPolicy.getMinSymbols() > 0) {
194 sb.append(
195 getRandomString(
196 passwordPolicy.getMinSymbols(), _symbolsCharsetArray));
197 }
198
199 if (passwordPolicy.getMinUpperCase() > 0) {
200 sb.append(
201 getRandomString(
202 passwordPolicy.getMinUpperCase(), _upperCaseCharsetArray));
203 }
204
205 if (alphanumericMinLength > alphanumericActualMinLength) {
206 int count = alphanumericMinLength - alphanumericActualMinLength;
207
208 sb.append(getRandomString(count, _alphanumericCharsetArray));
209 }
210
211 if (passwordMinLength >
212 (alphanumericMinLength + passwordPolicy.getMinSymbols())) {
213
214 int count =
215 passwordMinLength -
216 (alphanumericMinLength + passwordPolicy.getMinSymbols());
217
218 sb.append(PwdGenerator.getPassword(_completeCharset, count));
219 }
220
221 if (sb.index() == 0) {
222 sb.append(
223 PwdGenerator.getPassword(
224 _completeCharset,
225 PropsValues.PASSWORDS_DEFAULT_POLICY_MIN_LENGTH));
226 }
227
228 return RandomUtil.shuffle(new SecureRandom(), sb.toString());
229 }
230
231 protected String generateStatic(PasswordPolicy passwordPolicy) {
232 return PropsValues.PASSWORDS_PASSWORDPOLICYTOOLKIT_STATIC;
233 }
234
235 protected String getRandomString(int count, char[] chars) {
236 Random random = new SecureRandom();
237
238 StringBundler sb = new StringBundler(count);
239
240 for (int i = 0; i < count; i++) {
241 int index = random.nextInt(chars.length);
242
243 sb.append(chars[index]);
244 }
245
246 return sb.toString();
247 }
248
249 protected char[] getSortedCharArray(String s) {
250 char[] chars = s.toCharArray();
251
252 Arrays.sort(chars);
253
254 return chars;
255 }
256
257 protected int getUsageCount(String s, char[] chars) {
258 int count = 0;
259
260 for (int i = 0; i < s.length(); i++) {
261 if (Arrays.binarySearch(chars, s.charAt(i)) >= 0) {
262 count++;
263 }
264 }
265
266 return count;
267 }
268
269 private char[] _alphanumericCharsetArray;
270 private String _completeCharset;
271 private char[] _lowerCaseCharsetArray;
272 private char[] _numbersCharsetArray;
273 private char[] _symbolsCharsetArray;
274 private char[] _upperCaseCharsetArray;
275
276 }