82474746 |
1 | <?php |
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2 | |
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3 | /** |
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4 | * db_prefs.php |
5 | * |
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6 | * This contains functions for manipulating user preferences |
7 | * stored in a database, accessed though the Pear DB layer. |
8 | * |
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9 | * Database: |
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10 | * |
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11 | * The preferences table should have three columns: |
12 | * user char \ primary |
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13 | * prefkey char / key |
14 | * prefval blob |
15 | * |
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16 | * CREATE TABLE userprefs (user CHAR(128) NOT NULL DEFAULT '', |
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17 | * prefkey CHAR(64) NOT NULL DEFAULT '', |
18 | * prefval BLOB NOT NULL DEFAULT '', |
19 | * primary key (user,prefkey)); |
20 | * |
21 | * Configuration of databasename, username and password is done |
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22 | * by using conf.pl or the administrator plugin |
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23 | * |
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24 | * @copyright 1999-2015 The SquirrelMail Project Team |
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25 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License |
31841a9e |
26 | * @version $Id$ |
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27 | * @package squirrelmail |
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28 | * @subpackage prefs |
29 | * @since 1.1.3 |
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30 | */ |
31 | |
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32 | /** @ignore */ |
33 | if (!defined('SM_PATH')) define('SM_PATH','../'); |
34 | |
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35 | /** Unknown database */ |
98749983 |
36 | define('SMDB_UNKNOWN', 0); |
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37 | /** MySQL */ |
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38 | define('SMDB_MYSQL', 1); |
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39 | /** PostgreSQL */ |
98749983 |
40 | define('SMDB_PGSQL', 2); |
41 | |
099fea11 |
42 | /** |
43 | * don't display errors (no code execution in functions/*.php). |
44 | * will handle error in dbPrefs class. |
45 | */ |
46 | @include_once('DB.php'); |
35586184 |
47 | |
370059dd |
48 | global $prefs_are_cached, $prefs_cache; |
2d367c68 |
49 | |
4d30c1b7 |
50 | /** |
51 | * @ignore |
52 | */ |
370059dd |
53 | function cachePrefValues($username) { |
54 | global $prefs_are_cached, $prefs_cache; |
55 | |
37d5278d |
56 | sqgetGlobalVar('prefs_are_cached', $prefs_are_cached, SQ_SESSION ); |
370059dd |
57 | if ($prefs_are_cached) { |
37d5278d |
58 | sqgetGlobalVar('prefs_cache', $prefs_cache, SQ_SESSION ); |
370059dd |
59 | return; |
60 | } |
2d367c68 |
61 | |
9eb0fbd4 |
62 | sqsession_unregister('prefs_cache'); |
63 | sqsession_unregister('prefs_are_cached'); |
370059dd |
64 | |
65 | $db = new dbPrefs; |
66 | if(isset($db->error)) { |
67 | printf( _("Preference database error (%s). Exiting abnormally"), |
68 | $db->error); |
69 | exit; |
70 | } |
2d367c68 |
71 | |
370059dd |
72 | $db->fillPrefsCache($username); |
73 | if (isset($db->error)) { |
74 | printf( _("Preference database error (%s). Exiting abnormally"), |
75 | $db->error); |
76 | exit; |
77 | } |
78 | |
79 | $prefs_are_cached = true; |
80 | |
9eb0fbd4 |
81 | sqsession_register($prefs_cache, 'prefs_cache'); |
82 | sqsession_register($prefs_are_cached, 'prefs_are_cached'); |
370059dd |
83 | } |
84 | |
d6c32258 |
85 | /** |
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86 | * Class used to handle connections to prefs database and operations with preferences |
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87 | * |
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88 | * @package squirrelmail |
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89 | * @subpackage prefs |
90 | * @since 1.1.3 |
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91 | * |
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92 | */ |
370059dd |
93 | class dbPrefs { |
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94 | /** |
95 | * Table used to store preferences |
96 | * @var string |
97 | */ |
370059dd |
98 | var $table = 'userprefs'; |
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99 | |
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100 | /** |
101 | * Field used to store owner of preference |
102 | * @var string |
103 | */ |
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104 | var $user_field = 'user'; |
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105 | |
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106 | /** |
107 | * Field used to store preference name |
108 | * @var string |
109 | */ |
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110 | var $key_field = 'prefkey'; |
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111 | |
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112 | /** |
113 | * Field used to store preference value |
114 | * @var string |
115 | */ |
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116 | var $val_field = 'prefval'; |
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117 | |
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118 | /** |
119 | * Database connection object |
120 | * @var object |
121 | */ |
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122 | var $dbh = NULL; |
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123 | |
ace4c62c |
124 | /** |
125 | * Error messages |
126 | * @var string |
127 | */ |
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128 | var $error = NULL; |
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129 | |
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130 | /** |
131 | * Database type (SMDB_* constants) |
132 | * Is used in setKey(). |
133 | * @var integer |
134 | */ |
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135 | var $db_type = SMDB_UNKNOWN; |
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136 | |
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137 | /** |
138 | * Default preferences |
139 | * @var array |
140 | */ |
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141 | var $default = Array('theme_default' => 0, |
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142 | 'include_self_reply_all' => '0', |
143 | 'do_not_reply_to_self' => '1', |
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144 | 'show_html_default' => '0'); |
145 | |
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146 | /** |
147 | * Preference owner field size |
148 | * @var integer |
149 | * @since 1.5.1 |
150 | */ |
151 | var $user_size = 128; |
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152 | |
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153 | /** |
154 | * Preference key field size |
155 | * @var integer |
156 | * @since 1.5.1 |
157 | */ |
158 | var $key_size = 64; |
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159 | |
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160 | /** |
161 | * Preference value field size |
162 | * @var integer |
163 | * @since 1.5.1 |
164 | */ |
165 | var $val_size = 65536; |
166 | |
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167 | |
168 | |
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169 | /** |
170 | * initialize the default preferences array. |
171 | * |
172 | */ |
173 | function dbPrefs() { |
174 | // Try and read the default preferences file. |
175 | $default_pref = SM_PATH . 'config/default_pref'; |
176 | if (@file_exists($default_pref)) { |
177 | if ($file = @fopen($default_pref, 'r')) { |
178 | while (!feof($file)) { |
179 | $pref = fgets($file, 1024); |
180 | $i = strpos($pref, '='); |
181 | if ($i > 0) { |
182 | $this->default[trim(substr($pref, 0, $i))] = trim(substr($pref, $i + 1)); |
183 | } |
184 | } |
185 | fclose($file); |
186 | } |
187 | } |
188 | } |
189 | |
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190 | /** |
191 | * initialize DB connection object |
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192 | * |
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193 | * @return boolean true, if object is initialized |
37b11ab0 |
194 | * |
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195 | */ |
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196 | function open() { |
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197 | global $prefs_dsn, $prefs_table; |
98749983 |
198 | global $prefs_user_field, $prefs_key_field, $prefs_val_field; |
06316c07 |
199 | global $prefs_user_size, $prefs_key_size, $prefs_val_size; |
3499f99f |
200 | |
099fea11 |
201 | /* test if Pear DB class is available and freak out if it is not */ |
202 | if (! class_exists('DB')) { |
203 | // same error also in abook_database.php |
ae13f72f |
204 | $this->error = _("Could not include PEAR database functions required for the database backend.") . "\n"; |
099fea11 |
205 | $this->error .= sprintf(_("Is PEAR installed, and is the include path set correctly to find %s?"), |
ae13f72f |
206 | 'DB.php') . "\n"; |
099fea11 |
207 | $this->error .= _("Please contact your system administrator and report this error."); |
208 | return false; |
209 | } |
210 | |
370059dd |
211 | if(isset($this->dbh)) { |
212 | return true; |
213 | } |
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214 | |
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215 | if (preg_match('/^mysql/', $prefs_dsn)) { |
216 | $this->db_type = SMDB_MYSQL; |
217 | } elseif (preg_match('/^pgsql/', $prefs_dsn)) { |
218 | $this->db_type = SMDB_PGSQL; |
219 | } |
220 | |
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221 | if (!empty($prefs_table)) { |
222 | $this->table = $prefs_table; |
223 | } |
99a6c222 |
224 | if (!empty($prefs_user_field)) { |
225 | $this->user_field = $prefs_user_field; |
226 | } |
865050ce |
227 | |
228 | // the default user field is "user", which in PostgreSQL |
229 | // is an identifier and causes errors if not escaped |
230 | // |
231 | if ($this->db_type == SMDB_PGSQL) { |
232 | $this->user_field = '"' . $this->user_field . '"'; |
233 | } |
234 | |
99a6c222 |
235 | if (!empty($prefs_key_field)) { |
236 | $this->key_field = $prefs_key_field; |
237 | } |
238 | if (!empty($prefs_val_field)) { |
239 | $this->val_field = $prefs_val_field; |
240 | } |
06316c07 |
241 | if (!empty($prefs_user_size)) { |
242 | $this->user_size = (int) $prefs_user_size; |
243 | } |
244 | if (!empty($prefs_key_size)) { |
245 | $this->key_size = (int) $prefs_key_size; |
246 | } |
247 | if (!empty($prefs_val_size)) { |
248 | $this->val_size = (int) $prefs_val_size; |
249 | } |
70561170 |
250 | $dbh = DB::connect($prefs_dsn, true); |
2d367c68 |
251 | |
286fe80b |
252 | if(DB::isError($dbh)) { |
2d367c68 |
253 | $this->error = DB::errorMessage($dbh); |
254 | return false; |
255 | } |
256 | |
257 | $this->dbh = $dbh; |
258 | return true; |
370059dd |
259 | } |
82474746 |
260 | |
ace4c62c |
261 | /** |
262 | * Function used to handle database connection errors |
37b11ab0 |
263 | * |
202bcbcc |
264 | * @param object PEAR Error object |
37b11ab0 |
265 | * |
ace4c62c |
266 | */ |
370059dd |
267 | function failQuery($res = NULL) { |
2d367c68 |
268 | if($res == NULL) { |
269 | printf(_("Preference database error (%s). Exiting abnormally"), |
370059dd |
270 | $this->error); |
2d367c68 |
271 | } else { |
272 | printf(_("Preference database error (%s). Exiting abnormally"), |
370059dd |
273 | DB::errorMessage($res)); |
2d367c68 |
274 | } |
275 | exit; |
370059dd |
276 | } |
82474746 |
277 | |
ace4c62c |
278 | /** |
279 | * Get user's prefs setting |
37b11ab0 |
280 | * |
ace4c62c |
281 | * @param string $user user name |
282 | * @param string $key preference name |
283 | * @param mixed $default (since 1.2.5) default value |
37b11ab0 |
284 | * |
ace4c62c |
285 | * @return mixed preference value |
37b11ab0 |
286 | * |
ace4c62c |
287 | */ |
370059dd |
288 | function getKey($user, $key, $default = '') { |
289 | global $prefs_cache; |
2d367c68 |
290 | |
971c7b1a |
291 | $temp = array(&$user, &$key); |
292 | $result = do_hook('get_pref_override', $temp); |
293 | if (is_null($result)) { |
294 | cachePrefValues($user); |
2d367c68 |
295 | |
971c7b1a |
296 | if (isset($prefs_cache[$key])) { |
297 | $result = $prefs_cache[$key]; |
62337234 |
298 | } else { |
971c7b1a |
299 | //FIXME: is there a justification for having two prefs hooks so close? who uses them? |
300 | $temp = array(&$user, &$key); |
301 | $result = do_hook('get_pref', $temp); |
302 | if (is_null($result)) { |
303 | if (isset($this->default[$key])) { |
304 | $result = $this->default[$key]; |
305 | } else { |
306 | $result = $default; |
307 | } |
308 | } |
62337234 |
309 | } |
2d367c68 |
310 | } |
971c7b1a |
311 | return $result; |
370059dd |
312 | } |
2d367c68 |
313 | |
ace4c62c |
314 | /** |
315 | * Delete user's prefs setting |
37b11ab0 |
316 | * |
202bcbcc |
317 | * @param string $user user name |
37b11ab0 |
318 | * @param string $key preference name |
319 | * |
ace4c62c |
320 | * @return boolean |
37b11ab0 |
321 | * |
ace4c62c |
322 | */ |
370059dd |
323 | function deleteKey($user, $key) { |
324 | global $prefs_cache; |
82474746 |
325 | |
b279d7f4 |
326 | if (!$this->open()) { |
327 | return false; |
328 | } |
99a6c222 |
329 | $query = sprintf("DELETE FROM %s WHERE %s='%s' AND %s='%s'", |
370059dd |
330 | $this->table, |
99a6c222 |
331 | $this->user_field, |
370059dd |
332 | $this->dbh->quoteString($user), |
99a6c222 |
333 | $this->key_field, |
370059dd |
334 | $this->dbh->quoteString($key)); |
82474746 |
335 | |
2d367c68 |
336 | $res = $this->dbh->simpleQuery($query); |
370059dd |
337 | if(DB::isError($res)) { |
2d367c68 |
338 | $this->failQuery($res); |
370059dd |
339 | } |
340 | |
341 | unset($prefs_cache[$key]); |
82474746 |
342 | |
2d367c68 |
343 | return true; |
370059dd |
344 | } |
82474746 |
345 | |
ace4c62c |
346 | /** |
347 | * Set user's preference |
37b11ab0 |
348 | * |
349 | * @param string $user user name |
350 | * @param string $key preference name |
351 | * @param mixed $value preference value |
352 | * |
ace4c62c |
353 | * @return boolean |
37b11ab0 |
354 | * |
ace4c62c |
355 | */ |
370059dd |
356 | function setKey($user, $key, $value) { |
b279d7f4 |
357 | if (!$this->open()) { |
358 | return false; |
359 | } |
06316c07 |
360 | |
361 | /** |
362 | * Check if username fits into db field |
363 | */ |
364 | if (strlen($user) > $this->user_size) { |
365 | $this->error = "Oversized username value." |
5e07597f |
366 | ." Your preferences can't be saved." |
6f4c512c |
367 | ." See the administrator's manual or contact your system administrator."; |
06316c07 |
368 | |
369 | /** |
202bcbcc |
370 | * Debugging function. Can be used to log all issues that trigger |
371 | * oversized field errors. Function should be enabled in all three |
06316c07 |
372 | * strlen checks. See http://www.php.net/error-log |
373 | */ |
374 | // error_log($user.'|'.$key.'|'.$value."\n",3,'/tmp/oversized_log'); |
375 | |
376 | // error is fatal |
377 | $this->failQuery(null); |
378 | } |
379 | /** |
380 | * Check if preference key fits into db field |
381 | */ |
382 | if (strlen($key) > $this->key_size) { |
383 | $err_msg = "Oversized user's preference key." |
5e07597f |
384 | ." Some preferences were not saved." |
6f4c512c |
385 | ." See the administrator's manual or contact your system administrator."; |
06316c07 |
386 | // error is not fatal. Only some preference is not saved. |
387 | trigger_error($err_msg,E_USER_WARNING); |
388 | return false; |
389 | } |
390 | /** |
391 | * Check if preference value fits into db field |
392 | */ |
393 | if (strlen($value) > $this->val_size) { |
394 | $err_msg = "Oversized user's preference value." |
5e07597f |
395 | ." Some preferences were not saved." |
6f4c512c |
396 | ." See the administrator's manual or contact your system administrator."; |
06316c07 |
397 | // error is not fatal. Only some preference is not saved. |
398 | trigger_error($err_msg,E_USER_WARNING); |
399 | return false; |
400 | } |
401 | |
402 | |
98749983 |
403 | if ($this->db_type == SMDB_MYSQL) { |
404 | $query = sprintf("REPLACE INTO %s (%s, %s, %s) ". |
405 | "VALUES('%s','%s','%s')", |
406 | $this->table, |
407 | $this->user_field, |
408 | $this->key_field, |
409 | $this->val_field, |
410 | $this->dbh->quoteString($user), |
411 | $this->dbh->quoteString($key), |
412 | $this->dbh->quoteString($value)); |
413 | |
414 | $res = $this->dbh->simpleQuery($query); |
415 | if(DB::isError($res)) { |
416 | $this->failQuery($res); |
417 | } |
418 | } elseif ($this->db_type == SMDB_PGSQL) { |
419 | $this->dbh->simpleQuery("BEGIN TRANSACTION"); |
420 | $query = sprintf("DELETE FROM %s WHERE %s='%s' AND %s='%s'", |
421 | $this->table, |
422 | $this->user_field, |
423 | $this->dbh->quoteString($user), |
424 | $this->key_field, |
425 | $this->dbh->quoteString($key)); |
426 | $res = $this->dbh->simpleQuery($query); |
427 | if (DB::isError($res)) { |
428 | $this->dbh->simpleQuery("ROLLBACK TRANSACTION"); |
429 | $this->failQuery($res); |
430 | } |
431 | $query = sprintf("INSERT INTO %s (%s, %s, %s) VALUES ('%s', '%s', '%s')", |
432 | $this->table, |
433 | $this->user_field, |
434 | $this->key_field, |
435 | $this->val_field, |
436 | $this->dbh->quoteString($user), |
437 | $this->dbh->quoteString($key), |
438 | $this->dbh->quoteString($value)); |
439 | $res = $this->dbh->simpleQuery($query); |
440 | if (DB::isError($res)) { |
441 | $this->dbh->simpleQuery("ROLLBACK TRANSACTION"); |
442 | $this->failQuery($res); |
443 | } |
444 | $this->dbh->simpleQuery("COMMIT TRANSACTION"); |
445 | } else { |
446 | $query = sprintf("DELETE FROM %s WHERE %s='%s' AND %s='%s'", |
447 | $this->table, |
448 | $this->user_field, |
449 | $this->dbh->quoteString($user), |
450 | $this->key_field, |
451 | $this->dbh->quoteString($key)); |
452 | $res = $this->dbh->simpleQuery($query); |
453 | if (DB::isError($res)) { |
454 | $this->failQuery($res); |
455 | } |
456 | $query = sprintf("INSERT INTO %s (%s, %s, %s) VALUES ('%s', '%s', '%s')", |
457 | $this->table, |
458 | $this->user_field, |
459 | $this->key_field, |
460 | $this->val_field, |
461 | $this->dbh->quoteString($user), |
462 | $this->dbh->quoteString($key), |
463 | $this->dbh->quoteString($value)); |
464 | $res = $this->dbh->simpleQuery($query); |
465 | if (DB::isError($res)) { |
466 | $this->failQuery($res); |
467 | } |
370059dd |
468 | } |
2d367c68 |
469 | |
470 | return true; |
370059dd |
471 | } |
82474746 |
472 | |
ace4c62c |
473 | /** |
474 | * Fill preference cache array |
37b11ab0 |
475 | * |
ace4c62c |
476 | * @param string $user user name |
37b11ab0 |
477 | * |
ace4c62c |
478 | * @since 1.2.3 |
37b11ab0 |
479 | * |
ace4c62c |
480 | */ |
370059dd |
481 | function fillPrefsCache($user) { |
482 | global $prefs_cache; |
2d367c68 |
483 | |
b279d7f4 |
484 | if (!$this->open()) { |
485 | return; |
486 | } |
370059dd |
487 | |
488 | $prefs_cache = array(); |
99a6c222 |
489 | $query = sprintf("SELECT %s as prefkey, %s as prefval FROM %s ". |
490 | "WHERE %s = '%s'", |
491 | $this->key_field, |
492 | $this->val_field, |
370059dd |
493 | $this->table, |
99a6c222 |
494 | $this->user_field, |
370059dd |
495 | $this->dbh->quoteString($user)); |
496 | $res = $this->dbh->query($query); |
497 | if (DB::isError($res)) { |
498 | $this->failQuery($res); |
499 | } |
500 | |
501 | while ($row = $res->fetchRow(DB_FETCHMODE_ASSOC)) { |
502 | $prefs_cache[$row['prefkey']] = $row['prefval']; |
503 | } |
504 | } |
505 | |
370059dd |
506 | } /* end class dbPrefs */ |
82474746 |
507 | |
508 | |
4d30c1b7 |
509 | /** |
37b11ab0 |
510 | * Returns the value for the requested preference |
4d30c1b7 |
511 | * @ignore |
512 | */ |
37b11ab0 |
513 | function getPref($data_dir, $username, $pref_name, $default = '') { |
370059dd |
514 | $db = new dbPrefs; |
515 | if(isset($db->error)) { |
2d367c68 |
516 | printf( _("Preference database error (%s). Exiting abnormally"), |
370059dd |
517 | $db->error); |
2d367c68 |
518 | exit; |
370059dd |
519 | } |
520 | |
37b11ab0 |
521 | return $db->getKey($username, $pref_name, $default); |
370059dd |
522 | } |
523 | |
4d30c1b7 |
524 | /** |
37b11ab0 |
525 | * Remove the desired preference setting ($pref_name) |
4d30c1b7 |
526 | * @ignore |
527 | */ |
37b11ab0 |
528 | function removePref($data_dir, $username, $pref_name) { |
1fa62ab9 |
529 | global $prefs_cache; |
370059dd |
530 | $db = new dbPrefs; |
531 | if(isset($db->error)) { |
532 | $db->failQuery(); |
533 | } |
534 | |
37b11ab0 |
535 | $db->deleteKey($username, $pref_name); |
88a99543 |
536 | |
37b11ab0 |
537 | if (isset($prefs_cache[$pref_name])) { |
538 | unset($prefs_cache[$pref_name]); |
88a99543 |
539 | } |
540 | |
541 | sqsession_register($prefs_cache , 'prefs_cache'); |
370059dd |
542 | return; |
543 | } |
544 | |
4d30c1b7 |
545 | /** |
37b11ab0 |
546 | * Sets the desired preference setting ($pref_name) to whatever is in $value |
4d30c1b7 |
547 | * @ignore |
548 | */ |
37b11ab0 |
549 | function setPref($data_dir, $username, $pref_name, $value) { |
370059dd |
550 | global $prefs_cache; |
551 | |
37b11ab0 |
552 | if (isset($prefs_cache[$pref_name]) && ($prefs_cache[$pref_name] == $value)) { |
1fa62ab9 |
553 | return; |
370059dd |
554 | } |
555 | |
37b11ab0 |
556 | if ($value === '') { |
557 | removePref($data_dir, $username, $pref_name); |
370059dd |
558 | return; |
559 | } |
560 | |
561 | $db = new dbPrefs; |
562 | if(isset($db->error)) { |
563 | $db->failQuery(); |
564 | } |
565 | |
37b11ab0 |
566 | $db->setKey($username, $pref_name, $value); |
567 | $prefs_cache[$pref_name] = $value; |
370059dd |
568 | assert_options(ASSERT_ACTIVE, 1); |
569 | assert_options(ASSERT_BAIL, 1); |
37b11ab0 |
570 | assert ('$value == $prefs_cache[$pref_name]'); |
88a99543 |
571 | sqsession_register($prefs_cache , 'prefs_cache'); |
370059dd |
572 | return; |
573 | } |
574 | |
4d30c1b7 |
575 | /** |
576 | * This checks if the prefs are available |
577 | * @ignore |
578 | */ |
370059dd |
579 | function checkForPrefs($data_dir, $username) { |
580 | $db = new dbPrefs; |
581 | if(isset($db->error)) { |
582 | $db->failQuery(); |
583 | } |
584 | } |
585 | |
4d30c1b7 |
586 | /** |
587 | * Writes the Signature |
588 | * @ignore |
589 | */ |
37b11ab0 |
590 | function setSig($data_dir, $username, $number, $value) { |
16e5635d |
591 | if ($number == "g") { |
592 | $key = '___signature___'; |
593 | } else { |
594 | $key = sprintf('___sig%s___', $number); |
595 | } |
37b11ab0 |
596 | setPref($data_dir, $username, $key, $value); |
370059dd |
597 | return; |
598 | } |
599 | |
4d30c1b7 |
600 | /** |
601 | * Gets the signature |
602 | * @ignore |
603 | */ |
16e5635d |
604 | function getSig($data_dir, $username, $number) { |
16e5635d |
605 | if ($number == "g") { |
606 | $key = '___signature___'; |
607 | } else { |
608 | $key = sprintf('___sig%d___', $number); |
609 | } |
57f1d1c1 |
610 | return getPref($data_dir, $username, $key); |
370059dd |
611 | } |