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5421ab09 VZ |
1 | <?php |
2 | /*************************************************************************** | |
2ab75571 | 3 | * Copyright (C) 2003-2010 Polytechnique.org * |
5421ab09 VZ |
4 | * http://opensource.polytechnique.org/ * |
5 | * * | |
6 | * This program is free software; you can redistribute it and/or modify * | |
7 | * it under the terms of the GNU General Public License as published by * | |
8 | * the Free Software Foundation; either version 2 of the License, or * | |
9 | * (at your option) any later version. * | |
10 | * * | |
11 | * This program is distributed in the hope that it will be useful, * | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | |
14 | * GNU General Public License for more details. * | |
15 | * * | |
16 | * You should have received a copy of the GNU General Public License * | |
17 | * along with this program; if not, write to the Free Software * | |
18 | * Foundation, Inc., * | |
19 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * | |
20 | ***************************************************************************/ | |
21 | ||
22 | /** | |
23 | * PlUserNotFound is raised when a user id cannot be linked to a real user. | |
24 | * The @p results give the list hruids (useful when several users are found). | |
25 | */ | |
26 | class UserNotFoundException extends Exception | |
27 | { | |
28 | public function __construct($results = array()) | |
29 | { | |
30 | $this->results = $results; | |
31 | parent::__construct(); | |
32 | } | |
33 | } | |
34 | ||
35 | /** | |
36 | * Represents an user of plat/al (without any further assumption), with a | |
37 | * special focus on always-used properties (identification fields, display name, | |
38 | * forlife/bestalias emails, ...). | |
39 | * NOTE: each implementation of plat/al-code MUST subclass PlUser, and name it | |
40 | * 'User'. | |
41 | */ | |
42 | abstract class PlUser | |
43 | { | |
44 | /** | |
8829b862 VZ |
45 | * User data enumerations. |
46 | */ | |
47 | const GENDER_FEMALE = true; | |
48 | const GENDER_MALE = false; | |
49 | const FORMAT_HTML = "html"; | |
50 | const FORMAT_TEXT = "text"; | |
51 | ||
52 | /** | |
5421ab09 VZ |
53 | * User data storage. |
54 | * By convention, null means the information hasn't been fetched yet, and | |
55 | * false means the information is not available. | |
56 | */ | |
6c36b907 | 57 | |
643ae90b | 58 | // uid is internal user ID (potentially numeric), whereas hruid is a |
6c36b907 | 59 | // "human readable" unique ID |
643ae90b | 60 | protected $uid = null; |
5421ab09 VZ |
61 | protected $hruid = null; |
62 | ||
63 | // User main email aliases (forlife is the for-life email address, bestalias | |
64 | // is user-chosen preferred email address). | |
65 | protected $forlife = null; | |
66 | protected $bestalias = null; | |
67 | ||
68 | // Display name is user-chosen name to display (eg. in "Welcome | |
69 | // <display name> !"), while full name is the official full name. | |
70 | protected $display_name = null; | |
71 | protected $full_name = null; | |
5421ab09 | 72 | |
8829b862 VZ |
73 | // Other important parameters used when sending emails. |
74 | protected $gender = null; // Acceptable values are GENDER_MALE and GENDER_FEMALE | |
75 | protected $email_format = null; // Acceptable values are FORMAT_HTML and FORMAT_TEXT | |
76 | ||
f8b161ad FB |
77 | // Permissions |
78 | protected $perms = null; | |
79 | protected $perm_flags = null; | |
80 | ||
5421ab09 VZ |
81 | // Other properties are listed in this key-value hash map. |
82 | protected $data = array(); | |
83 | ||
84 | /** | |
85 | * Constructs the PlUser object from an identifier (any identifier which is | |
86 | * understood by getLogin() implementation). | |
87 | * | |
88 | * @param $login An user login. | |
89 | * @param $values List of known user properties. | |
90 | */ | |
91 | public function __construct($login, $values = array()) | |
92 | { | |
93 | $this->fillFromArray($values); | |
94 | ||
95 | // If the user id was not part of the known values, determines it from | |
96 | // the login. | |
643ae90b SJ |
97 | if (!$this->uid) { |
98 | $this->uid = $this->getLogin($login); | |
5421ab09 VZ |
99 | } |
100 | ||
101 | // Preloads main properties (assumes the loader will lazily get them | |
102 | // from variables already set in the object). | |
103 | $this->loadMainFields(); | |
104 | } | |
105 | ||
106 | /** | |
107 | * Get the canonical user id for the @p login. | |
108 | * | |
109 | * @param $login An user login. | |
110 | * @return The canonical user id. | |
111 | * @throws UserNotFoundException when login is not found. | |
112 | */ | |
113 | abstract protected function getLogin($login); | |
114 | ||
115 | /** | |
116 | * Loads the main properties (hruid, forlife, bestalias, ...) from the | |
117 | * database. Should return immediately when the properties are already | |
118 | * available. | |
119 | */ | |
120 | abstract protected function loadMainFields(); | |
121 | ||
122 | /** | |
123 | * Accessors to the main properties, ie. those available as top level | |
124 | * object variables. | |
125 | */ | |
f8b161ad FB |
126 | public function id() |
127 | { | |
643ae90b | 128 | return $this->uid; |
f8b161ad | 129 | } |
5421ab09 | 130 | |
f8b161ad FB |
131 | public function login() |
132 | { | |
133 | return $this->hruid; | |
134 | } | |
5421ab09 | 135 | |
f8b161ad FB |
136 | public function bestEmail() |
137 | { | |
138 | return $this->bestalias; | |
139 | } | |
140 | public function forlifeEmail() | |
141 | { | |
142 | return $this->forlife; | |
143 | } | |
144 | ||
145 | public function displayName() | |
146 | { | |
147 | return $this->display_name; | |
148 | } | |
149 | public function fullName() | |
150 | { | |
151 | return $this->full_name; | |
152 | } | |
5421ab09 | 153 | |
35fff9b0 FB |
154 | abstract public function password(); |
155 | ||
8829b862 VZ |
156 | // Fallback value is GENDER_MALE. |
157 | public function isFemale() | |
158 | { | |
159 | return $this->gender == self::GENDER_FEMALE; | |
160 | } | |
161 | ||
162 | // Fallback value is FORMAT_TEXT. | |
163 | public function isEmailFormatHtml() | |
164 | { | |
165 | return $this->email_format == self::FORMAT_HTML; | |
166 | } | |
167 | ||
5421ab09 VZ |
168 | /** |
169 | * Other properties are available directly through the $data array, or as | |
170 | * standard object variables, using a getter. | |
171 | */ | |
f8b161ad FB |
172 | public function data() |
173 | { | |
174 | return $this->data; | |
175 | } | |
5421ab09 VZ |
176 | |
177 | public function __get($name) | |
178 | { | |
9ddc36c1 | 179 | if (property_exists($this, $name)) { |
5421ab09 VZ |
180 | return $this->$name; |
181 | } | |
182 | ||
183 | if (isset($this->data[$name])) { | |
184 | return $this->data[$name]; | |
185 | } | |
186 | ||
187 | return null; | |
188 | } | |
189 | ||
190 | public function __isset($name) | |
191 | { | |
9ddc36c1 | 192 | return property_exists($this, $name) || isset($this->data[$name]); |
5421ab09 VZ |
193 | } |
194 | ||
fd05958d FB |
195 | public function __unset($name) |
196 | { | |
197 | if (property_exists($this, $name)) { | |
198 | $this->$name = null; | |
199 | } else { | |
200 | unset($this->data[$name]); | |
201 | } | |
202 | } | |
203 | ||
5421ab09 VZ |
204 | /** |
205 | * Fills the object properties using the @p associative array; the intended | |
206 | * user case is to fill the object using SQL obtained arrays. | |
207 | * | |
208 | * @param $values Key-value array of user properties. | |
209 | */ | |
210 | protected function fillFromArray(array $values) | |
211 | { | |
212 | // Merge main properties with existing ones. | |
213 | unset($values['data']); | |
214 | foreach ($values as $key => $value) { | |
215 | if (property_exists($this, $key) && !isset($this->$key)) { | |
216 | $this->$key = $value; | |
217 | } | |
218 | } | |
219 | ||
220 | // Merge all value into the $this->data placeholder. | |
221 | $this->data = array_merge($this->data, $values); | |
222 | } | |
223 | ||
9ddc36c1 VZ |
224 | /** |
225 | * Adds properties to the object; this method does not allow the caller to | |
226 | * update core properties (id, ...). | |
227 | * | |
228 | * @param $values An associative array of non-core properties. | |
229 | */ | |
230 | public function addProperties(array $values) | |
231 | { | |
232 | foreach ($values as $key => $value) { | |
233 | if (!property_exists($this, $key)) { | |
234 | $this->data[$key] = $value; | |
235 | } | |
236 | } | |
237 | } | |
238 | ||
5421ab09 VZ |
239 | |
240 | /** | |
f8b161ad FB |
241 | * Build the permissions flags for the user. |
242 | */ | |
243 | abstract protected function buildPerms(); | |
244 | ||
245 | /** | |
246 | * Check wether the user got the given permission combination. | |
247 | */ | |
248 | public function checkPerms($perms) | |
249 | { | |
250 | if (is_null($this->perm_flags)) { | |
251 | $this->buildPerms(); | |
252 | } | |
253 | if (is_null($this->perm_flags)) { | |
254 | return false; | |
255 | } | |
256 | return $this->perm_flags->hasFlagCombination($perms); | |
257 | } | |
258 | ||
259 | ||
260 | /** | |
5421ab09 VZ |
261 | * Returns a valid User object built from the @p id and optionnal @p values, |
262 | * or returns false and calls the callback if the @p id is not valid. | |
263 | */ | |
264 | public static function get($login, $callback = false) | |
265 | { | |
266 | return User::getWithValues($login, array(), $callback); | |
267 | } | |
268 | ||
269 | public static function getWithValues($login, $values, $callback = false) | |
270 | { | |
271 | if (!$callback) { | |
272 | $callback = array('User', '_default_user_callback'); | |
273 | } | |
274 | ||
275 | try { | |
276 | return new User($login, $values); | |
277 | } catch (UserNotFoundException $e) { | |
278 | return call_user_func($callback, $login, $e->results); | |
279 | } | |
280 | } | |
281 | ||
933e1c23 FB |
282 | public static function getWithUID($uid, $callback = false) |
283 | { | |
643ae90b | 284 | return User::getWithValues(null, array('uid' => $uid), $callback); |
933e1c23 FB |
285 | } |
286 | ||
5421ab09 VZ |
287 | // Same as above, but using the silent callback as default. |
288 | public static function getSilent($login) | |
289 | { | |
290 | return User::getWithValues($login, array(), array('User', '_silent_user_callback')); | |
291 | } | |
292 | ||
293 | public static function getSilentWithValues($login, $values) | |
294 | { | |
295 | return User::getWithValues($login, $values, array('User', '_silent_user_callback')); | |
296 | } | |
297 | ||
933e1c23 FB |
298 | public static function getSilentWithUID($uid) |
299 | { | |
643ae90b | 300 | return User::getWithValues(null, array('uid' => $uid), array('User', '_silent_user_callback')); |
933e1c23 FB |
301 | } |
302 | ||
5421ab09 | 303 | /** |
40d6b19a VZ |
304 | * Retrieves User objects corresponding to the @p logins, and eventually |
305 | * extracts and returns the @p property. If @p strict mode is disabled, it | |
306 | * also includes logins for which no forlife was found (but it still calls | |
307 | * the callback for them). | |
5421ab09 VZ |
308 | * In all cases, email addresses which are not from the local domains are |
309 | * kept. | |
310 | * | |
311 | * @param $logins Array of user logins. | |
40d6b19a | 312 | * @param $property Property to retrieve from the User objects. |
5421ab09 VZ |
313 | * @param $strict Should unvalidated logins be returned as-is or discarded ? |
314 | * @param $callback Callback to call when a login is unknown to the system. | |
315 | * @return Array of validated user forlife emails. | |
316 | */ | |
40d6b19a | 317 | private static function getBulkUserProperties($logins, $property, $strict, $callback) |
5421ab09 VZ |
318 | { |
319 | if (!is_array($logins)) { | |
320 | if (strlen(trim($logins)) == 0) { | |
321 | return null; | |
322 | } | |
323 | $logins = split("[; ,\r\n\|]+", $logins); | |
324 | } | |
325 | ||
326 | if ($logins) { | |
327 | $list = array(); | |
328 | foreach ($logins as $i => $login) { | |
329 | $login = trim($login); | |
330 | if (empty($login)) { | |
331 | continue; | |
332 | } | |
333 | ||
334 | if (($user = User::get($login, $callback))) { | |
40d6b19a | 335 | $list[$i] = $user->$property(); |
b9ca76f9 | 336 | } else if (!$strict || (User::isForeignEmailAddress($login) && isvalid_email($login))) { |
5421ab09 VZ |
337 | $list[$i] = $login; |
338 | } | |
339 | } | |
340 | return $list; | |
341 | } | |
342 | return null; | |
343 | } | |
344 | ||
345 | /** | |
40d6b19a VZ |
346 | * Returns hruid corresponding to the @p logins. See getBulkUserProperties() |
347 | * for details. | |
348 | */ | |
349 | public static function getBulkHruid($logins, $callback = false) | |
350 | { | |
351 | return self::getBulkUserProperties($logins, 'login', true, $callback); | |
352 | } | |
353 | ||
354 | /** | |
355 | * Returns forlife emails corresponding to the @p logins. See | |
356 | * getBulkUserProperties() for details. | |
357 | */ | |
358 | public static function getBulkForlifeEmails($logins, $strict = true, $callback = false) | |
359 | { | |
360 | return self::getBulkUserProperties($logins, 'forlifeEmail', $strict, $callback); | |
361 | } | |
362 | ||
363 | /** | |
5421ab09 VZ |
364 | * Predefined callbacks for the user lookup; they are called when a given |
365 | * login is found not to be associated with any valid user. Silent callback | |
366 | * does nothing; default callback is supposed to display an error message, | |
367 | * using the Platal::page() hook. | |
368 | */ | |
369 | public static function _silent_user_callback($login, $results) | |
370 | { | |
371 | return; | |
372 | } | |
373 | ||
374 | abstract public static function _default_user_callback($login, $results); | |
375 | ||
376 | /** | |
377 | * Determines if the @p login is an email address, and an email address not | |
378 | * served locally by plat/al. | |
379 | */ | |
380 | abstract public static function isForeignEmailAddress($email); | |
0be5c71c | 381 | |
cdf1c82b SJ |
382 | private static function stripBadChars($text) |
383 | { | |
384 | return str_replace(array(' ', "'"), array('-', ''), | |
a95dcb6e | 385 | strtolower(stripslashes(replace_accent(trim($text))))); |
cdf1c82b SJ |
386 | } |
387 | ||
388 | /** Creates a username from a first and last name | |
389 | * @param $firstname User's firstname | |
390 | * @param $lasttname User's lastname | |
391 | * return STRING the corresponding username | |
392 | */ | |
2a683f7f | 393 | public static function makeUserName($firstname, $lastname) |
cdf1c82b SJ |
394 | { |
395 | return self::stripBadChars($firstname) . '.' . self::stripBadChars($lastname); | |
396 | } | |
397 | ||
0be5c71c SJ |
398 | /** |
399 | * Creates a user forlive identifier from: | |
400 | * @param $firstname User's firstname | |
401 | * @param $lasttname User's lastname | |
402 | * @param $category User's promotion or type of account | |
403 | */ | |
404 | public static function makeHrid($firstname, $lastname, $category) | |
405 | { | |
cdf1c82b SJ |
406 | $cat = self::stripBadChars($category); |
407 | if (!cat) { | |
408 | Platal::page()->kill("$category is not a suitable category."); | |
409 | } | |
410 | ||
411 | return self::makeUserName($firstname, $lastname) . '.' . $cat; | |
0be5c71c SJ |
412 | } |
413 | ||
a95dcb6e SJ |
414 | /** Reformats the firstname so that all letters are in lower case, |
415 | * except the first letter of each part of the name. | |
416 | */ | |
417 | public static function fixFirstnameCase($firstname) | |
418 | { | |
419 | $firstname = strtolower($firstname); | |
420 | $pieces = explode('-', $firstname); | |
421 | ||
422 | foreach ($pieces as $piece) { | |
423 | $subpieces = explode("'", $piece); | |
424 | $usubpieces = ''; | |
0be5c71c | 425 | |
a95dcb6e SJ |
426 | foreach ($subpieces as $subpiece) { |
427 | $usubpieces[] = ucwords($subpiece); | |
428 | } | |
429 | $upieces[] = implode("'", $usubpieces); | |
430 | } | |
431 | return implode('-', $upieces); | |
432 | } | |
5421ab09 VZ |
433 | } |
434 | ||
435 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: | |
436 | ?> |