149 lines
3 KiB
PHP
149 lines
3 KiB
PHP
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<?php
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namespace gp\install;
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defined('is_running') or die('Not an entry point...');
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class FilePermissions{
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public static function GetExpectedPerms($file){
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return static::_GetExpectedPerms($file, ['755','775','777']);
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}
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public static function GetExpectedPerms_file($file){
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return static::_GetExpectedPerms($file, ['644','664','666']);
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}
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public static function _GetExpectedPerms($file, $expected = ['644','664','666'] ){
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$file_info = self::file_info($file);
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//if user id's match
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if( isset($file_info['uid']) ){
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$puid = posix_geteuid();
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if( $puid == $file_info['uid'] ){
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return $expected[0];
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}
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}
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//if group id's match
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if( isset($file_info['gid']) ){
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$pgid = posix_getegid();
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if( $pgid == $file_info['gid'] ){
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return $expected[1];
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}
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}
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//if user is a member of group
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$members = self::process_members();
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if( isset($file_info['name']) && in_array($file_info['name'], $members) ){
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return $expected[1];
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}
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if( isset($file_info['uid']) && in_array($file_info['uid'], $members) ){
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return $expected[1];
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}
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return $expected[2];
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}
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public static function HasFunctions(){
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return function_exists('posix_getpwuid')
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&& function_exists('posix_geteuid')
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&& function_exists('fileowner')
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&& function_exists('posix_getegid')
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&& function_exists('posix_getgrgid')
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&& function_exists('posix_getgrgid');
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}
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/*
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* Compare Permissions
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*/
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public static function perm_compare($perm1, $perm2) {
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if( !self::ValidPermission($perm1) ){
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return false;
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}
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if( !self::ValidPermission($perm2) ){
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return false;
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}
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if (intval($perm1[0]) > intval($perm2[0])) {
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return false;
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}
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if (intval($perm1[1]) > intval($perm2[1])) {
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return false;
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}
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if (intval($perm1[2]) > intval($perm2[2])) {
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return false;
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}
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return true;
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}
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public static function ValidPermission(&$permission){
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if( strlen($permission) == 3 ){
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return true;
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}
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if( strlen($permission) == 4 ){
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if( intval($permission[0]) === 0 ){
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$permission = substr($permission,1);
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return true;
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}
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}
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return false;
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}
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/**
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* @description Gets Groups members of the PHP Engine
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* @return array The Group members of the PHP Engine
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*
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*/
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public static function process_members() {
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$info = self::process_info();
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if (isset($info['members'])) {
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return $info['members'];
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}
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return array();
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}
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/**
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* @description Gets User ID of the file owner
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* @return int The user ID of the file owner
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*
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*/
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public static function file_uid($file) {
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$info = self::file_info($file);
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if( is_array($info) && isset($info['uid']) ){
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return $info['uid'];
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}
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}
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/**
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* @description Gets Info array of the file owner
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* @return array The Info array of the file owner
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*
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*/
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public static function file_info($file) {
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return posix_getpwuid(@fileowner($file));
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}
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/**
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* @description Gets Group Info of the PHP Engine
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* @return array The Group Info of the PHP Engine
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*
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*/
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public static function process_info() {
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return posix_getgrgid(posix_getegid());
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}
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}
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