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<?php |
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/** |
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* Permission information part. |
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* |
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* @copyright 2018 Institute of Legal Medicine, Medical University of Innsbruck |
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* @author Andreas Erhard <[email protected]> |
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* @license LGPL-3.0-only |
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* @link http://www.gerichtsmedizin.at/ |
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* |
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* @package fileinfo |
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*/ |
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namespace Gmi\Toolkit\Fileinfo\Part; |
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/** |
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* Represents the permission information part of a FileInfo. |
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*/ |
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class PermissionInfo implements InfoPartInterface |
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{ |
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/** |
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* @var int |
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*/ |
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private $owner; |
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/** |
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* @var string |
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*/ |
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private $ownerName; |
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/** |
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* @var int |
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*/ |
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private $group; |
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/** |
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* @var string |
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*/ |
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private $groupName; |
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/** |
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* @var int |
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*/ |
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private $perms; |
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/** |
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* Constructor. |
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* |
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* @internal |
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* |
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* @param int $owner |
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* @param string $ownerName |
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* @param int $group |
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* @param string $groupName |
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* @param int $perms |
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*/ |
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public function __construct($owner, $ownerName, $group, $groupName, $perms) |
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{ |
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$this->owner = $owner; |
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$this->ownerName = $ownerName; |
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$this->group = $group; |
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$this->groupName = $groupName; |
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$this->perms = $perms; |
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} |
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/** |
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* Returns the owner ID of the file. |
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* |
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* @return int |
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*/ |
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public function getOwner() |
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{ |
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return $this->owner; |
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} |
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/** |
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* Returns the owner name of the file. |
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* |
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* @return string |
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*/ |
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public function getOwnerName() |
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{ |
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return $this->ownerName; |
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} |
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/** |
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* Returns the group ID of the file. |
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* |
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* @return int |
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*/ |
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public function getGroup() |
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{ |
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return $this->group; |
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} |
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/** |
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* Returns the group name of the file. |
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* |
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* @return string |
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*/ |
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public function getGroupName() |
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{ |
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return $this->groupName; |
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} |
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/** |
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* Returns the permissions of the file. |
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* |
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* @return int |
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*/ |
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public function getPerms() |
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{ |
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return $this->perms; |
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} |
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/** |
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* Returns the formatted permissions of the file in octal format. |
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* |
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* @return string |
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*/ |
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public function getPermsOctal() |
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{ |
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return sprintf('%o', $this->getPerms()); |
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} |
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/** |
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* Returns the formatted permissions of the file in rwx format (only permission bits). |
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* |
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* @return string |
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*/ |
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public function getPermsFormatted() |
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{ |
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return $this->formatOwnerPerms() . $this->formatGroupPerms() . $this->formatWorldPerms(); |
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} |
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/** |
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* Returns whether the file has the read bit set for the owner. |
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* |
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* @return bool |
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*/ |
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public function isOwnerReadable() |
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{ |
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return $this->matchPerms('400'); |
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} |
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/** |
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* Returns whether the file has the write bit set for the owner. |
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* |
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* @return bool |
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*/ |
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public function isOwnerWritable() |
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{ |
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return $this->matchPerms('200'); |
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} |
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/** |
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* Returns whether the file has the execute bit set for the owner. |
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* |
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* @return bool |
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*/ |
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public function isOwnerExecutable() |
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{ |
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return $this->matchPerms('100'); |
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} |
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/** |
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* Returns whether the file has the read bit set for the group. |
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* |
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* @return bool |
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*/ |
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public function isGroupReadable() |
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{ |
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return $this->matchPerms('040'); |
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} |
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/** |
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* Returns whether the file has the write bit set for the group. |
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* |
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* @return bool |
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*/ |
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public function isGroupWritable() |
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{ |
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return $this->matchPerms('020'); |
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} |
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/** |
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* Returns whether the file has the execute bit set for the group. |
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* |
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* @return bool |
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*/ |
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public function isGroupExecutable() |
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{ |
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return $this->matchPerms('010'); |
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} |
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/** |
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* Returns whether the file has the read bit set for others/world. |
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* |
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* @return bool |
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*/ |
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public function isWorldReadable() |
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{ |
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return $this->matchPerms('004'); |
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} |
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/** |
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* Returns whether the file has the write bit set for others/world. |
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* |
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* @return bool |
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*/ |
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public function isWorldWritable() |
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{ |
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return $this->matchPerms('002'); |
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} |
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/** |
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* Returns whether the file has the execute bit set for others/world. |
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* |
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* @return bool |
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*/ |
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public function isWorldExecutable() |
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{ |
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return $this->matchPerms('001'); |
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} |
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/** |
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* Matches an octal string against the file permissions. |
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* |
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* @param string $oct octal permission string |
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* |
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* @return bool |
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*/ |
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private function matchPerms($oct) |
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{ |
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return ($this->perms & octdec($oct)) === octdec($oct); |
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} |
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/** |
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* Returns the formatted owner permissions of the file in rwx format. |
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* |
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* @return string |
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*/ |
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private function formatOwnerPerms() |
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{ |
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$permstr = ''; |
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$permstr .= $this->isOwnerReadable() ? 'r' : '-'; |
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$permstr .= $this->isOwnerWritable() ? 'w' : '-'; |
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$permstr .= $this->isOwnerExecutable() ? 'x' : '-'; |
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return $permstr; |
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} |
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/** |
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* Returns the formatted group permissions of the file in rwx format. |
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* |
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* @return string |
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*/ |
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private function formatGroupPerms() |
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{ |
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$permstr = ''; |
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$permstr .= $this->isGroupReadable() ? 'r' : '-'; |
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$permstr .= $this->isGroupWritable() ? 'w' : '-'; |
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$permstr .= $this->isGroupExecutable() ? 'x' : '-'; |
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return $permstr; |
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} |
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/** |
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* Returns the formatted world permissions of the file in rwx format. |
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* |
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* @return string |
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*/ |
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private function formatWorldPerms() |
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{ |
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$permstr = ''; |
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$permstr .= $this->isWorldReadable() ? 'r' : '-'; |
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$permstr .= $this->isWorldWritable() ? 'w' : '-'; |
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$permstr .= $this->isWorldExecutable() ? 'x' : '-'; |
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return $permstr; |
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} |
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} |
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