/**
* Unshare an item shared with the current user
* @param string $itemType
* @param string $itemOrigin Item target or source
* @param boolean $originIsSource true if $itemOrigin is the source, false if $itemOrigin is the target (optional)
* @return boolean true on success or false on failure
*
* Unsharing from self is not allowed for items inside collections
*/
public static function unshareFromSelf($itemType, $itemOrigin, $originIsSource = false)
{
$originType = $originIsSource ? 'source' : 'target';
$uid = \OCP\User::getUser();
if ($itemType === 'file' || $itemType === 'folder') {
$statement = 'SELECT * FROM `*PREFIX*share` WHERE `item_type` = ? and `file_' . $originType . '` = ?';
} else {
$statement = 'SELECT * FROM `*PREFIX*share` WHERE `item_type` = ? and `item_' . $originType . '` = ?';
}
$query = \OCP\DB::prepare($statement);
$result = $query->execute(array($itemType, $itemOrigin));
$shares = $result->fetchAll();
$listOfUnsharedItems = array();
$itemUnshared = false;
foreach ($shares as $share) {
if ((int) $share['share_type'] === \OCP\Share::SHARE_TYPE_USER && $share['share_with'] === $uid) {
$deletedShares = Helper::delete($share['id']);
$shareTmp = array('id' => $share['id'], 'shareWith' => $share['share_with'], 'itemTarget' => $share['item_target'], 'itemType' => $share['item_type'], 'shareType' => (int) $share['share_type']);
if (isset($share['file_target'])) {
$shareTmp['fileTarget'] = $share['file_target'];
}
$listOfUnsharedItems = array_merge($listOfUnsharedItems, $deletedShares, array($shareTmp));
$itemUnshared = true;
break;
} elseif ((int) $share['share_type'] === \OCP\Share::SHARE_TYPE_GROUP) {
if (\OC_Group::inGroup($uid, $share['share_with'])) {
$groupShare = $share;
}
} elseif ((int) $share['share_type'] === \OCP\Share::SHARE_TYPE_SHARING_GROUP) {
if (\OCA\Sharing_Group\Data::inGroup($uid, $share['share_with'])) {
$groupShare = $share;
}
} elseif ((int) $share['share_type'] === self::$shareTypeGroupUserUnique && $share['share_with'] === $uid) {
$uniqueGroupShare = $share;
}
}
if (!$itemUnshared && isset($groupShare) && !isset($uniqueGroupShare)) {
$query = \OC_DB::prepare('INSERT INTO `*PREFIX*share`' . ' (`item_type`, `item_source`, `item_target`, `parent`, `share_type`,' . ' `share_with`, `uid_owner`, `permissions`, `stime`, `file_source`, `file_target`)' . ' VALUES (?,?,?,?,?,?,?,?,?,?,?)');
$query->execute(array($groupShare['item_type'], $groupShare['item_source'], $groupShare['item_target'], $groupShare['id'], self::$shareTypeGroupUserUnique, \OC_User::getUser(), $groupShare['uid_owner'], 0, $groupShare['stime'], $groupShare['file_source'], $groupShare['file_target']));
$shareTmp = array('id' => $groupShare['id'], 'shareWith' => $groupShare['share_with'], 'itemTarget' => $groupShare['item_target'], 'itemType' => $groupShare['item_type'], 'shareType' => (int) $groupShare['share_type']);
if (isset($groupShare['file_target'])) {
$shareTmp['fileTarget'] = $groupShare['file_target'];
}
$listOfUnsharedItems = array_merge($listOfUnsharedItems, array($groupShare));
$itemUnshared = true;
} elseif (!$itemUnshared && isset($uniqueGroupShare)) {
$query = \OC_DB::prepare('UPDATE `*PREFIX*share` SET `permissions` = ? WHERE `id` = ?');
$query->execute(array(0, $uniqueGroupShare['id']));
$shareTmp = array('id' => $uniqueGroupShare['id'], 'shareWith' => $uniqueGroupShare['share_with'], 'itemTarget' => $uniqueGroupShare['item_target'], 'itemType' => $uniqueGroupShare['item_type'], 'shareType' => (int) $uniqueGroupShare['share_type']);
if (isset($uniqueGroupShare['file_target'])) {
$shareTmp['fileTarget'] = $uniqueGroupShare['file_target'];
}
$listOfUnsharedItems = array_merge($listOfUnsharedItems, array($uniqueGroupShare));
$itemUnshared = true;
}
if ($itemUnshared) {
\OC_Hook::emit('OCP\\Share', 'post_unshareFromSelf', array('unsharedItems' => $listOfUnsharedItems, 'itemType' => $itemType));
}
return $itemUnshared;
}
