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| 1 | <?php |
| 2 | /** |
| 3 | * |
| 4 | * This file is part of the phpBB Forum Software package. |
| 5 | * |
| 6 | * @copyright (c) phpBB Limited <https://www.phpbb.com> |
| 7 | * @license GNU General Public License, version 2 (GPL-2.0) |
| 8 | * |
| 9 | * For full copyright and license information, please see |
| 10 | * the docs/CREDITS.txt file. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | namespace phpbb\db\migration\tool; |
| 15 | |
| 16 | /** |
| 17 | * Migration permission management tool |
| 18 | */ |
| 19 | class permission implements \phpbb\db\migration\tool\tool_interface |
| 20 | { |
| 21 | /** @var \phpbb\auth\auth */ |
| 22 | protected $auth; |
| 23 | |
| 24 | /** @var \auth_admin */ |
| 25 | protected $auth_admin; |
| 26 | |
| 27 | /** @var \phpbb\cache\service */ |
| 28 | protected $cache; |
| 29 | |
| 30 | /** @var \phpbb\db\driver\driver_interface */ |
| 31 | protected $db; |
| 32 | |
| 33 | /** @var string */ |
| 34 | protected $phpbb_root_path; |
| 35 | |
| 36 | /** @var string */ |
| 37 | protected $php_ext; |
| 38 | |
| 39 | /** |
| 40 | * Constructor |
| 41 | * |
| 42 | * @param \phpbb\db\driver\driver_interface $db |
| 43 | * @param \phpbb\cache\service $cache |
| 44 | * @param \phpbb\auth\auth $auth |
| 45 | * @param string $phpbb_root_path |
| 46 | * @param string $php_ext |
| 47 | */ |
| 48 | public function __construct(\phpbb\db\driver\driver_interface $db, \phpbb\cache\service $cache, \phpbb\auth\auth $auth, $phpbb_root_path, $php_ext) |
| 49 | { |
| 50 | $this->db = $db; |
| 51 | $this->cache = $cache; |
| 52 | $this->auth = $auth; |
| 53 | $this->phpbb_root_path = $phpbb_root_path; |
| 54 | $this->php_ext = $php_ext; |
| 55 | |
| 56 | if (!class_exists('auth_admin')) |
| 57 | { |
| 58 | include($this->phpbb_root_path . 'includes/acp/auth.' . $this->php_ext); |
| 59 | } |
| 60 | $this->auth_admin = new \auth_admin(); |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * {@inheritdoc} |
| 65 | */ |
| 66 | public function get_name() |
| 67 | { |
| 68 | return 'permission'; |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * Permission Exists |
| 73 | * |
| 74 | * Check if a permission (auth) setting exists |
| 75 | * |
| 76 | * @param string $auth_option The name of the permission (auth) option |
| 77 | * @param bool $global True for checking a global permission setting, |
| 78 | * False for a local permission setting |
| 79 | * @return bool true if it exists, false if not |
| 80 | */ |
| 81 | public function exists($auth_option, $global = true) |
| 82 | { |
| 83 | if ($global) |
| 84 | { |
| 85 | $type_sql = ' AND is_global = 1'; |
| 86 | } |
| 87 | else |
| 88 | { |
| 89 | $type_sql = ' AND is_local = 1'; |
| 90 | } |
| 91 | |
| 92 | $sql = 'SELECT auth_option_id |
| 93 | FROM ' . ACL_OPTIONS_TABLE . " |
| 94 | WHERE auth_option = '" . $this->db->sql_escape($auth_option) . "'" |
| 95 | . $type_sql; |
| 96 | $result = $this->db->sql_query($sql); |
| 97 | |
| 98 | $row = $this->db->sql_fetchrow($result); |
| 99 | $this->db->sql_freeresult($result); |
| 100 | |
| 101 | if ($row) |
| 102 | { |
| 103 | return true; |
| 104 | } |
| 105 | |
| 106 | return false; |
| 107 | } |
| 108 | |
| 109 | /** |
| 110 | * Permission Add |
| 111 | * |
| 112 | * Add a permission (auth) option |
| 113 | * |
| 114 | * @param string $auth_option The name of the permission (auth) option |
| 115 | * @param bool $global True for checking a global permission setting, |
| 116 | * False for a local permission setting |
| 117 | * @param int|false $copy_from If set, contains the id of the permission from which to copy the new one. |
| 118 | * @return void |
| 119 | */ |
| 120 | public function add($auth_option, $global = true, $copy_from = false) |
| 121 | { |
| 122 | if ($this->exists($auth_option, $global)) |
| 123 | { |
| 124 | return; |
| 125 | } |
| 126 | |
| 127 | // We have to add a check to see if the !$global (if global, local, and if local, global) permission already exists. If it does, acl_add_option currently has a bug which would break the ACL system, so we are having a work-around here. |
| 128 | if ($this->exists($auth_option, !$global)) |
| 129 | { |
| 130 | $sql_ary = array( |
| 131 | 'is_global' => 1, |
| 132 | 'is_local' => 1, |
| 133 | ); |
| 134 | $sql = 'UPDATE ' . ACL_OPTIONS_TABLE . ' |
| 135 | SET ' . $this->db->sql_build_array('UPDATE', $sql_ary) . " |
| 136 | WHERE auth_option = '" . $this->db->sql_escape($auth_option) . "'"; |
| 137 | $this->db->sql_query($sql); |
| 138 | } |
| 139 | else |
| 140 | { |
| 141 | if ($global) |
| 142 | { |
| 143 | $this->auth_admin->acl_add_option(array('global' => array($auth_option))); |
| 144 | } |
| 145 | else |
| 146 | { |
| 147 | $this->auth_admin->acl_add_option(array('local' => array($auth_option))); |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | // The permission has been added, now we can copy it if needed |
| 152 | if ($copy_from && isset($this->auth_admin->acl_options['id'][$copy_from])) |
| 153 | { |
| 154 | $old_id = $this->auth_admin->acl_options['id'][$copy_from]; |
| 155 | $new_id = $this->auth_admin->acl_options['id'][$auth_option]; |
| 156 | |
| 157 | $tables = array(ACL_GROUPS_TABLE, ACL_ROLES_DATA_TABLE, ACL_USERS_TABLE); |
| 158 | |
| 159 | foreach ($tables as $table) |
| 160 | { |
| 161 | $sql = 'SELECT * |
| 162 | FROM ' . $table . ' |
| 163 | WHERE auth_option_id = ' . $old_id; |
| 164 | $result = $this->db->sql_query($sql); |
| 165 | |
| 166 | $sql_ary = array(); |
| 167 | while ($row = $this->db->sql_fetchrow($result)) |
| 168 | { |
| 169 | $row['auth_option_id'] = $new_id; |
| 170 | $sql_ary[] = $row; |
| 171 | } |
| 172 | $this->db->sql_freeresult($result); |
| 173 | |
| 174 | if (!empty($sql_ary)) |
| 175 | { |
| 176 | $this->db->sql_multi_insert($table, $sql_ary); |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | $this->auth_admin->acl_clear_prefetch(); |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * Permission Remove |
| 186 | * |
| 187 | * Remove a permission (auth) option |
| 188 | * |
| 189 | * @param string $auth_option The name of the permission (auth) option |
| 190 | * @param bool $global True for checking a global permission setting, |
| 191 | * False for a local permission setting |
| 192 | * @return void |
| 193 | */ |
| 194 | public function remove($auth_option, $global = true) |
| 195 | { |
| 196 | if (!$this->exists($auth_option, $global)) |
| 197 | { |
| 198 | return; |
| 199 | } |
| 200 | |
| 201 | if ($global) |
| 202 | { |
| 203 | $type_sql = ' AND is_global = 1'; |
| 204 | } |
| 205 | else |
| 206 | { |
| 207 | $type_sql = ' AND is_local = 1'; |
| 208 | } |
| 209 | $sql = 'SELECT auth_option_id, is_global, is_local |
| 210 | FROM ' . ACL_OPTIONS_TABLE . " |
| 211 | WHERE auth_option = '" . $this->db->sql_escape($auth_option) . "'" . |
| 212 | $type_sql; |
| 213 | $result = $this->db->sql_query($sql); |
| 214 | $row = $this->db->sql_fetchrow($result); |
| 215 | $this->db->sql_freeresult($result); |
| 216 | |
| 217 | $id = (int) $row['auth_option_id']; |
| 218 | |
| 219 | // If it is a local and global permission, do not remove the row! :P |
| 220 | if ($row['is_global'] && $row['is_local']) |
| 221 | { |
| 222 | $sql = 'UPDATE ' . ACL_OPTIONS_TABLE . ' |
| 223 | SET ' . (($global) ? 'is_global = 0' : 'is_local = 0') . ' |
| 224 | WHERE auth_option_id = ' . $id; |
| 225 | $this->db->sql_query($sql); |
| 226 | } |
| 227 | else |
| 228 | { |
| 229 | // Delete time |
| 230 | $tables = array(ACL_GROUPS_TABLE, ACL_ROLES_DATA_TABLE, ACL_USERS_TABLE, ACL_OPTIONS_TABLE); |
| 231 | foreach ($tables as $table) |
| 232 | { |
| 233 | $this->db->sql_query('DELETE FROM ' . $table . ' |
| 234 | WHERE auth_option_id = ' . $id); |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | // Purge the auth cache |
| 239 | $this->cache->destroy('_acl_options'); |
| 240 | $this->auth->acl_clear_prefetch(); |
| 241 | } |
| 242 | |
| 243 | /** |
| 244 | * Check if a permission role exists |
| 245 | * |
| 246 | * @param string $role_name The role name |
| 247 | * |
| 248 | * @return int The id of the role if it exists, 0 otherwise |
| 249 | */ |
| 250 | public function role_exists($role_name) |
| 251 | { |
| 252 | $sql = 'SELECT role_id |
| 253 | FROM ' . ACL_ROLES_TABLE . " |
| 254 | WHERE role_name = '" . $this->db->sql_escape($role_name) . "'"; |
| 255 | $result = $this->db->sql_query($sql); |
| 256 | $role_id = (int) $this->db->sql_fetchfield('role_id'); |
| 257 | $this->db->sql_freeresult($result); |
| 258 | |
| 259 | // Try falling back to searching by role description for standard role titles |
| 260 | if (!$role_id && preg_match('/ROLE_(?<title>([A-Z]+_?)+)/', $role_name, $matches)) |
| 261 | { |
| 262 | $role_description = 'ROLE_DESCRIPTION_' . $matches['title']; |
| 263 | $sql = 'SELECT role_id |
| 264 | FROM ' . ACL_ROLES_TABLE . " |
| 265 | WHERE role_description = '" . $this->db->sql_escape($role_description) . "'"; |
| 266 | $result = $this->db->sql_query($sql); |
| 267 | $role_id = (int) $this->db->sql_fetchfield('role_id'); |
| 268 | $this->db->sql_freeresult($result); |
| 269 | } |
| 270 | |
| 271 | return $role_id; |
| 272 | } |
| 273 | |
| 274 | /** |
| 275 | * Add a new permission role |
| 276 | * |
| 277 | * @param string $role_name The new role name |
| 278 | * @param string $role_type The type (u_, m_, a_) |
| 279 | * @param string $role_description Description of the new role |
| 280 | * |
| 281 | * @return int|null Inserted SQL id or null if role already exists |
| 282 | */ |
| 283 | public function role_add($role_name, $role_type, $role_description = '') |
| 284 | { |
| 285 | if ($this->role_exists($role_name)) |
| 286 | { |
| 287 | return null; |
| 288 | } |
| 289 | |
| 290 | $sql = 'SELECT MAX(role_order) AS max_role_order |
| 291 | FROM ' . ACL_ROLES_TABLE . " |
| 292 | WHERE role_type = '" . $this->db->sql_escape($role_type) . "'"; |
| 293 | $this->db->sql_query($sql); |
| 294 | $role_order = (int) $this->db->sql_fetchfield('max_role_order'); |
| 295 | $role_order = (!$role_order) ? 1 : $role_order + 1; |
| 296 | |
| 297 | $sql_ary = array( |
| 298 | 'role_name' => $role_name, |
| 299 | 'role_description' => $role_description, |
| 300 | 'role_type' => $role_type, |
| 301 | 'role_order' => $role_order, |
| 302 | ); |
| 303 | |
| 304 | $sql = 'INSERT INTO ' . ACL_ROLES_TABLE . ' ' . $this->db->sql_build_array('INSERT', $sql_ary); |
| 305 | $this->db->sql_query($sql); |
| 306 | |
| 307 | return (int) $this->db->sql_nextid(); |
| 308 | } |
| 309 | |
| 310 | /** |
| 311 | * Update the name on a permission role |
| 312 | * |
| 313 | * @param string $old_role_name The old role name |
| 314 | * @param string $new_role_name The new role name |
| 315 | * @return void |
| 316 | * @throws \phpbb\db\migration\exception |
| 317 | */ |
| 318 | public function role_update($old_role_name, $new_role_name) |
| 319 | { |
| 320 | if (!$this->role_exists($old_role_name)) |
| 321 | { |
| 322 | throw new \phpbb\db\migration\exception('ROLE_NOT_EXIST', $old_role_name); |
| 323 | } |
| 324 | |
| 325 | $sql = 'UPDATE ' . ACL_ROLES_TABLE . " |
| 326 | SET role_name = '" . $this->db->sql_escape($new_role_name) . "' |
| 327 | WHERE role_name = '" . $this->db->sql_escape($old_role_name) . "'"; |
| 328 | $this->db->sql_query($sql); |
| 329 | } |
| 330 | |
| 331 | /** |
| 332 | * Remove a permission role |
| 333 | * |
| 334 | * @param string $role_name The role name to remove |
| 335 | * @return void |
| 336 | */ |
| 337 | public function role_remove($role_name) |
| 338 | { |
| 339 | if (!($role_id = $this->role_exists($role_name))) |
| 340 | { |
| 341 | return; |
| 342 | } |
| 343 | |
| 344 | // Get the role type |
| 345 | $sql = 'SELECT role_type |
| 346 | FROM ' . ACL_ROLES_TABLE . ' |
| 347 | WHERE role_id = ' . (int) $role_id; |
| 348 | $result = $this->db->sql_query($sql); |
| 349 | $role_type = $this->db->sql_fetchfield('role_type'); |
| 350 | $this->db->sql_freeresult($result); |
| 351 | |
| 352 | // Get complete auth array |
| 353 | $sql = 'SELECT auth_option, auth_option_id |
| 354 | FROM ' . ACL_OPTIONS_TABLE . " |
| 355 | WHERE auth_option " . $this->db->sql_like_expression($role_type . $this->db->get_any_char()); |
| 356 | $result = $this->db->sql_query($sql); |
| 357 | |
| 358 | $auth_settings = []; |
| 359 | while ($row = $this->db->sql_fetchrow($result)) |
| 360 | { |
| 361 | $auth_settings[$row['auth_option']] = ACL_NO; |
| 362 | } |
| 363 | $this->db->sql_freeresult($result); |
| 364 | |
| 365 | // Get the role auth settings we need to re-set... |
| 366 | $sql = 'SELECT o.auth_option, r.auth_setting |
| 367 | FROM ' . ACL_ROLES_DATA_TABLE . ' r, ' . ACL_OPTIONS_TABLE . ' o |
| 368 | WHERE o.auth_option_id = r.auth_option_id |
| 369 | AND r.role_id = ' . (int) $role_id; |
| 370 | $result = $this->db->sql_query($sql); |
| 371 | |
| 372 | while ($row = $this->db->sql_fetchrow($result)) |
| 373 | { |
| 374 | $auth_settings[$row['auth_option']] = $row['auth_setting']; |
| 375 | } |
| 376 | $this->db->sql_freeresult($result); |
| 377 | |
| 378 | // Get role assignments |
| 379 | $hold_ary = $this->auth_admin->get_role_mask($role_id); |
| 380 | |
| 381 | // Re-assign permissions |
| 382 | foreach ($hold_ary as $forum_id => $forum_ary) |
| 383 | { |
| 384 | if (isset($forum_ary['users'])) |
| 385 | { |
| 386 | $this->auth_admin->acl_set('user', $forum_id, $forum_ary['users'], $auth_settings, 0, false); |
| 387 | } |
| 388 | |
| 389 | if (isset($forum_ary['groups'])) |
| 390 | { |
| 391 | $this->auth_admin->acl_set('group', $forum_id, $forum_ary['groups'], $auth_settings, 0, false); |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | // Remove role from users and groups just to be sure (happens through acl_set) |
| 396 | $sql = 'DELETE FROM ' . ACL_USERS_TABLE . ' |
| 397 | WHERE auth_role_id = ' . $role_id; |
| 398 | $this->db->sql_query($sql); |
| 399 | |
| 400 | $sql = 'DELETE FROM ' . ACL_GROUPS_TABLE . ' |
| 401 | WHERE auth_role_id = ' . $role_id; |
| 402 | $this->db->sql_query($sql); |
| 403 | |
| 404 | $sql = 'DELETE FROM ' . ACL_ROLES_DATA_TABLE . ' |
| 405 | WHERE role_id = ' . $role_id; |
| 406 | $this->db->sql_query($sql); |
| 407 | |
| 408 | $sql = 'DELETE FROM ' . ACL_ROLES_TABLE . ' |
| 409 | WHERE role_id = ' . $role_id; |
| 410 | $this->db->sql_query($sql); |
| 411 | |
| 412 | $this->auth->acl_clear_prefetch(); |
| 413 | } |
| 414 | |
| 415 | /** |
| 416 | * Permission Set |
| 417 | * |
| 418 | * Allows you to set permissions for a certain group/role |
| 419 | * |
| 420 | * @param string $name The name of the role/group |
| 421 | * @param string|array $auth_option The auth_option or array of |
| 422 | * auth_options you would like to set |
| 423 | * @param string $type The type (role|group) |
| 424 | * @param bool $has_permission True if you want to give them permission, |
| 425 | * false if you want to deny them permission |
| 426 | * @return void |
| 427 | * @throws \phpbb\db\migration\exception |
| 428 | */ |
| 429 | public function permission_set($name, $auth_option, $type = 'role', $has_permission = true) |
| 430 | { |
| 431 | if (!is_array($auth_option)) |
| 432 | { |
| 433 | $auth_option = array($auth_option); |
| 434 | } |
| 435 | |
| 436 | $new_auth = array(); |
| 437 | $sql = 'SELECT auth_option_id |
| 438 | FROM ' . ACL_OPTIONS_TABLE . ' |
| 439 | WHERE ' . $this->db->sql_in_set('auth_option', $auth_option); |
| 440 | $result = $this->db->sql_query($sql); |
| 441 | while ($row = $this->db->sql_fetchrow($result)) |
| 442 | { |
| 443 | $new_auth[] = (int) $row['auth_option_id']; |
| 444 | } |
| 445 | $this->db->sql_freeresult($result); |
| 446 | |
| 447 | $type = (string) $type; // Prevent PHP bug. |
| 448 | if (empty($new_auth) || !in_array($type, ['role','group'])) |
| 449 | { |
| 450 | return; |
| 451 | } |
| 452 | |
| 453 | $current_auth = array(); |
| 454 | |
| 455 | switch ($type) |
| 456 | { |
| 457 | case 'role': |
| 458 | if (!($role_id = $this->role_exists($name))) |
| 459 | { |
| 460 | throw new \phpbb\db\migration\exception('ROLE_NOT_EXIST', $name); |
| 461 | } |
| 462 | |
| 463 | $sql = 'SELECT auth_option_id, auth_setting |
| 464 | FROM ' . ACL_ROLES_DATA_TABLE . ' |
| 465 | WHERE role_id = ' . $role_id; |
| 466 | $result = $this->db->sql_query($sql); |
| 467 | while ($row = $this->db->sql_fetchrow($result)) |
| 468 | { |
| 469 | $current_auth[$row['auth_option_id']] = $row['auth_setting']; |
| 470 | } |
| 471 | $this->db->sql_freeresult($result); |
| 472 | break; |
| 473 | |
| 474 | case 'group': |
| 475 | $sql = 'SELECT group_id |
| 476 | FROM ' . GROUPS_TABLE . " |
| 477 | WHERE group_name = '" . $this->db->sql_escape($name) . "'"; |
| 478 | $this->db->sql_query($sql); |
| 479 | $group_id = (int) $this->db->sql_fetchfield('group_id'); |
| 480 | |
| 481 | if (!$group_id) |
| 482 | { |
| 483 | throw new \phpbb\db\migration\exception('GROUP_NOT_EXIST', $name); |
| 484 | } |
| 485 | |
| 486 | // If the group has a role set for them we will add the requested permissions to that role. |
| 487 | $sql = 'SELECT auth_role_id |
| 488 | FROM ' . ACL_GROUPS_TABLE . ' |
| 489 | WHERE group_id = ' . $group_id . ' |
| 490 | AND auth_role_id <> 0 |
| 491 | AND forum_id = 0'; |
| 492 | $this->db->sql_query($sql); |
| 493 | $role_id = (int) $this->db->sql_fetchfield('auth_role_id'); |
| 494 | if ($role_id) |
| 495 | { |
| 496 | $sql = 'SELECT role_name, role_type |
| 497 | FROM ' . ACL_ROLES_TABLE . ' |
| 498 | WHERE role_id = ' . $role_id; |
| 499 | $this->db->sql_query($sql); |
| 500 | $role_data = $this->db->sql_fetchrow(); |
| 501 | if (!$role_data) |
| 502 | { |
| 503 | throw new \phpbb\db\migration\exception('ROLE_ASSIGNED_NOT_EXIST', $name, $role_id); |
| 504 | } |
| 505 | |
| 506 | $role_name = $role_data['role_name']; |
| 507 | $role_type = $role_data['role_type']; |
| 508 | |
| 509 | // Filter new auth options to match the role type: a_ | f_ | m_ | u_ |
| 510 | // Set new auth options to the role only if options matching the role type were found |
| 511 | $auth_option = array_filter($auth_option, |
| 512 | function ($option) use ($role_type) |
| 513 | { |
| 514 | return strpos($option, $role_type) === 0; |
| 515 | } |
| 516 | ); |
| 517 | |
| 518 | if (count($auth_option)) |
| 519 | { |
| 520 | $this->permission_set($role_name, $auth_option, 'role', $has_permission); |
| 521 | return; |
| 522 | } |
| 523 | } |
| 524 | |
| 525 | $sql = 'SELECT auth_option_id, auth_setting |
| 526 | FROM ' . ACL_GROUPS_TABLE . ' |
| 527 | WHERE group_id = ' . $group_id; |
| 528 | $result = $this->db->sql_query($sql); |
| 529 | while ($row = $this->db->sql_fetchrow($result)) |
| 530 | { |
| 531 | $current_auth[$row['auth_option_id']] = $row['auth_setting']; |
| 532 | } |
| 533 | $this->db->sql_freeresult($result); |
| 534 | break; |
| 535 | } |
| 536 | |
| 537 | $sql_ary = $auth_update_list = []; |
| 538 | $table = $type == 'role' ? ACL_ROLES_DATA_TABLE : ACL_GROUPS_TABLE; |
| 539 | foreach ($new_auth as $auth_option_id) |
| 540 | { |
| 541 | if (!isset($current_auth[$auth_option_id])) |
| 542 | { |
| 543 | $sql_ary[] = [ |
| 544 | $type . '_id' => ${$type . '_id'}, |
| 545 | 'auth_option_id' => $auth_option_id, |
| 546 | 'auth_setting' => (int) $has_permission, |
| 547 | ]; |
| 548 | } |
| 549 | else |
| 550 | { |
| 551 | $auth_update_list[] = $auth_option_id; |
| 552 | } |
| 553 | } |
| 554 | $this->db->sql_multi_insert($table, $sql_ary); |
| 555 | |
| 556 | if (count($auth_update_list)) |
| 557 | { |
| 558 | $sql = 'UPDATE ' . $table . ' |
| 559 | SET auth_setting = ' . (int) $has_permission . ' |
| 560 | WHERE ' . $this->db->sql_in_set('auth_option_id', $auth_update_list) . ' |
| 561 | AND ' . $type . '_id = ' . (int) ${$type . '_id'}; |
| 562 | $this->db->sql_query($sql); |
| 563 | } |
| 564 | |
| 565 | $this->auth->acl_clear_prefetch(); |
| 566 | } |
| 567 | |
| 568 | /** |
| 569 | * Permission Unset |
| 570 | * |
| 571 | * Allows you to unset (remove) permissions for a certain group/role |
| 572 | * |
| 573 | * @param string $name The name of the role/group |
| 574 | * @param string|array $auth_option The auth_option or array of |
| 575 | * auth_options you would like to set |
| 576 | * @param string $type The type (role|group) |
| 577 | * @return void |
| 578 | * @throws \phpbb\db\migration\exception |
| 579 | */ |
| 580 | public function permission_unset($name, $auth_option, $type = 'role') |
| 581 | { |
| 582 | if (!is_array($auth_option)) |
| 583 | { |
| 584 | $auth_option = array($auth_option); |
| 585 | } |
| 586 | |
| 587 | $to_remove = array(); |
| 588 | $sql = 'SELECT auth_option_id |
| 589 | FROM ' . ACL_OPTIONS_TABLE . ' |
| 590 | WHERE ' . $this->db->sql_in_set('auth_option', $auth_option); |
| 591 | $result = $this->db->sql_query($sql); |
| 592 | while ($row = $this->db->sql_fetchrow($result)) |
| 593 | { |
| 594 | $to_remove[] = (int) $row['auth_option_id']; |
| 595 | } |
| 596 | $this->db->sql_freeresult($result); |
| 597 | |
| 598 | if (empty($to_remove)) |
| 599 | { |
| 600 | return; |
| 601 | } |
| 602 | |
| 603 | $type = (string) $type; // Prevent PHP bug. |
| 604 | |
| 605 | switch ($type) |
| 606 | { |
| 607 | case 'role': |
| 608 | if (!($role_id = $this->role_exists($name))) |
| 609 | { |
| 610 | throw new \phpbb\db\migration\exception('ROLE_NOT_EXIST', $name); |
| 611 | } |
| 612 | |
| 613 | $sql = 'DELETE FROM ' . ACL_ROLES_DATA_TABLE . ' |
| 614 | WHERE ' . $this->db->sql_in_set('auth_option_id', $to_remove) . ' |
| 615 | AND role_id = ' . (int) $role_id; |
| 616 | $this->db->sql_query($sql); |
| 617 | break; |
| 618 | |
| 619 | case 'group': |
| 620 | $sql = 'SELECT group_id |
| 621 | FROM ' . GROUPS_TABLE . " |
| 622 | WHERE group_name = '" . $this->db->sql_escape($name) . "'"; |
| 623 | $this->db->sql_query($sql); |
| 624 | $group_id = (int) $this->db->sql_fetchfield('group_id'); |
| 625 | |
| 626 | if (!$group_id) |
| 627 | { |
| 628 | throw new \phpbb\db\migration\exception('GROUP_NOT_EXIST', $name); |
| 629 | } |
| 630 | |
| 631 | // If the group has a role set for them we will remove the requested permissions from that role. |
| 632 | $sql = 'SELECT auth_role_id |
| 633 | FROM ' . ACL_GROUPS_TABLE . ' |
| 634 | WHERE group_id = ' . $group_id . ' |
| 635 | AND auth_role_id <> 0'; |
| 636 | $this->db->sql_query($sql); |
| 637 | $role_id = (int) $this->db->sql_fetchfield('auth_role_id'); |
| 638 | if ($role_id) |
| 639 | { |
| 640 | $sql = 'SELECT role_name |
| 641 | FROM ' . ACL_ROLES_TABLE . ' |
| 642 | WHERE role_id = ' . $role_id; |
| 643 | $this->db->sql_query($sql); |
| 644 | $role_name = $this->db->sql_fetchfield('role_name'); |
| 645 | if (!$role_name) |
| 646 | { |
| 647 | throw new \phpbb\db\migration\exception('ROLE_ASSIGNED_NOT_EXIST', $name, $role_id); |
| 648 | } |
| 649 | |
| 650 | $this->permission_unset($role_name, $auth_option, 'role'); |
| 651 | return; |
| 652 | } |
| 653 | |
| 654 | $sql = 'DELETE FROM ' . ACL_GROUPS_TABLE . ' |
| 655 | WHERE ' . $this->db->sql_in_set('auth_option_id', $to_remove); |
| 656 | $this->db->sql_query($sql); |
| 657 | break; |
| 658 | } |
| 659 | |
| 660 | $this->auth->acl_clear_prefetch(); |
| 661 | } |
| 662 | |
| 663 | /** |
| 664 | * {@inheritdoc} |
| 665 | */ |
| 666 | public function reverse() |
| 667 | { |
| 668 | $arguments = func_get_args(); |
| 669 | $original_call = array_shift($arguments); |
| 670 | |
| 671 | $call = false; |
| 672 | switch ($original_call) |
| 673 | { |
| 674 | case 'add': |
| 675 | $call = 'remove'; |
| 676 | break; |
| 677 | |
| 678 | case 'remove': |
| 679 | $call = 'add'; |
| 680 | break; |
| 681 | |
| 682 | case 'permission_set': |
| 683 | $call = 'permission_unset'; |
| 684 | break; |
| 685 | |
| 686 | case 'permission_unset': |
| 687 | $call = 'permission_set'; |
| 688 | break; |
| 689 | |
| 690 | case 'role_add': |
| 691 | $call = 'role_remove'; |
| 692 | break; |
| 693 | |
| 694 | case 'role_remove': |
| 695 | $call = 'role_add'; |
| 696 | break; |
| 697 | |
| 698 | case 'role_update': |
| 699 | // Set to the original value if the current value is what we compared to originally |
| 700 | $arguments = array( |
| 701 | $arguments[1], |
| 702 | $arguments[0], |
| 703 | ); |
| 704 | break; |
| 705 | |
| 706 | case 'reverse': |
| 707 | // Reversing a reverse is just the call itself |
| 708 | $call = array_shift($arguments); |
| 709 | break; |
| 710 | } |
| 711 | |
| 712 | return $call ? call_user_func_array(array(&$this, $call), $arguments) : null; |
| 713 | } |
| 714 | } |