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110 lines
3.6 KiB
PHP
110 lines
3.6 KiB
PHP
<?
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class Permissions {
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/* Check to see if a user has the permission to perform an action
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* This is called by check_perms in util.php, for convenience.
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*
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* @param string PermissionName
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* @param string $MinClass Return false if the user's class level is below this.
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*/
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public static function check_perms($PermissionName, $MinClass = 0) {
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return (
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isset(G::$LoggedUser['Permissions'][$PermissionName])
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&& G::$LoggedUser['Permissions'][$PermissionName]
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&& (G::$LoggedUser['Class'] >= $MinClass
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|| G::$LoggedUser['EffectiveClass'] >= $MinClass)
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) ? true : false;
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}
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/**
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* Gets the permissions associated with a certain permissionid
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*
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* @param int $PermissionID the kind of permissions to fetch
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* @return array permissions
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*/
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public static function get_permissions($PermissionID) {
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$Permission = G::$Cache->get_value('perm_'.$PermissionID);
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if (empty($Permission)) {
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$QueryID = G::$DB->get_query_id();
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G::$DB->query("
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SELECT Level AS Class, `Values` AS Permissions, Secondary, PermittedForums
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FROM permissions
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WHERE ID='$PermissionID'");
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$Permission = G::$DB->next_record(MYSQLI_ASSOC, array('Permissions'));
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G::$DB->set_query_id($QueryID);
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$Permission['Permissions'] = unserialize($Permission['Permissions']);
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G::$Cache->cache_value('perm_'.$PermissionID, $Permission, 2592000);
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}
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return $Permission;
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}
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/**
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* Get a user's permissions.
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*
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* @param $UserID
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* @param array|false $CustomPermissions
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* Pass in the user's custom permissions if you already have them.
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* Leave false if you don't have their permissions, the function will fetch them.
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* @return array Mapping of PermissionName=>bool/int
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*/
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public static function get_permissions_for_user($UserID, $CustomPermissions = false) {
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$UserInfo = Users::user_info($UserID);
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// Fetch custom permissions if they weren't passed in.
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if ($CustomPermissions === false) {
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$QueryID = G::$DB->get_query_id();
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G::$DB->query('
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SELECT CustomPermissions
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FROM users_main
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WHERE ID = ' . (int)$UserID);
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list($CustomPermissions) = G::$DB->next_record(MYSQLI_NUM, false);
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G::$DB->set_query_id($QueryID);
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}
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if (!empty($CustomPermissions) && !is_array($CustomPermissions)) {
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$CustomPermissions = unserialize($CustomPermissions);
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}
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$Permissions = self::get_permissions($UserInfo['PermissionID']);
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// Manage 'special' inherited permissions
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$BonusPerms = array();
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$BonusCollages = 0;
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foreach ($UserInfo['ExtraClasses'] as $PermID => $Value) {
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$ClassPerms = self::get_permissions($PermID);
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$BonusCollages += $ClassPerms['Permissions']['MaxCollages'];
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unset($ClassPerms['Permissions']['MaxCollages']);
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$BonusPerms = array_merge($BonusPerms, $ClassPerms['Permissions']);
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}
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if (empty($CustomPermissions)) {
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$CustomPermissions = array();
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}
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// This is legacy donor cruft
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if ($UserInfo['Donor']) {
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$DonorPerms = self::get_permissions(DONOR);
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unset($DonorPerms['Permissions']['MaxCollages']);
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} else {
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$DonorPerms = array('Permissions' => array());
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}
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$MaxCollages = $Permissions['Permissions']['MaxCollages'] + $BonusCollages;
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if (isset($CustomPermissions['MaxCollages'])) {
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$MaxCollages += $CustomPermissions['MaxCollages'];
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unset($CustomPermissions['MaxCollages']);
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}
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$Permissions['Permissions']['MaxCollages'] = $MaxCollages;
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// Combine the permissions
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return array_merge(
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$Permissions['Permissions'],
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$BonusPerms,
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$CustomPermissions,
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$DonorPerms['Permissions']);
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}
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public static function is_mod($UserID) {
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$Permissions = self::get_permissions_for_user($UserID);
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return isset($Permissions['users_mod']) && $Permissions['users_mod'];
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}
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}
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?>
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