nextcloud/lib/public/share.php

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<?php
/**
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* ownCloud
*
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* @author Bjoern Schiessle, Michael Gapczynski
* @copyright 2012 Michael Gapczynski <mtgap@owncloud.com>
* 2014 Bjoern Schiessle <schiessle@owncloud.com>
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*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
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/**
* Public interface of ownCloud for apps to use.
* Share Class
*
*/
// use OCP namespace for all classes that are considered public.
// This means that they should be used by apps instead of the internal ownCloud classes
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namespace OCP;
/**
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* This class provides the ability for apps to share their content between users.
* Apps must create a backend class that implements OCP\Share_Backend and register it with this class.
*
* It provides the following hooks:
* - post_shared
*/
class Share extends \OC\Share\Constants {
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/**
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* Register a sharing backend class that implements OCP\Share_Backend for an item type
* @param string Item type
* @param string Backend class
* @param string (optional) Depends on item type
* @param array (optional) List of supported file extensions if this item type depends on files
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* @return Returns true if backend is registered or false if error
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*/
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public static function registerBackend($itemType, $class, $collectionOf = null, $supportedFileExtensions = null) {
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return \OC\Share\Share::registerBackend($itemType, $class, $collectionOf, $supportedFileExtensions);
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}
/**
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* Check if the Share API is enabled
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* @return Returns true if enabled or false
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*
* The Share API is enabled by default if not configured
*/
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public static function isEnabled() {
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return \OC\Share\Share::isEnabled();
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}
/**
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* Find which users can access a shared item
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* @param $path to the file
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* @param $user owner of the file
* @param include owner to the list of users with access to the file
* @return array
* @note $path needs to be relative to user data dir, e.g. 'file.txt'
* not '/admin/data/file.txt'
*/
public static function getUsersSharingFile($path, $user, $includeOwner = false) {
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return \OC\Share\Share::getUsersSharingFile($path, $user, $includeOwner);
}
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/**
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* Get the items of item type shared with the current user
* @param string Item type
* @param int Format (optional) Format type must be defined by the backend
* @param mixed Parameters (optional)
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* @param int Number of items to return (optional) Returns all by default
* @param bool include collections (optional)
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* @return Return depends on format
*/
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public static function getItemsSharedWith($itemType, $format = self::FORMAT_NONE,
$parameters = null, $limit = -1, $includeCollections = false) {
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return \OC\Share\Share::getItemsSharedWith($itemType, $format, $parameters, $limit, $includeCollections);
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}
/**
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* Get the item of item type shared with the current user
* @param string $itemType
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* @param string $itemTarget
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* @param int $format (optional) Format type must be defined by the backend
* @param mixed Parameters (optional)
* @param bool include collections (optional)
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* @return Return depends on format
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*/
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public static function getItemSharedWith($itemType, $itemTarget, $format = self::FORMAT_NONE,
$parameters = null, $includeCollections = false) {
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return \OC\Share\Share::getItemSharedWith($itemType, $itemTarget, $format, $parameters, $includeCollections);
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}
/**
* Get the item of item type shared with a given user by source
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* @param string $itemType
* @param string $itemSource
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* @param string $user User user to whom the item was shared
* @return array Return list of items with file_target, permissions and expiration
*/
public static function getItemSharedWithUser($itemType, $itemSource, $user) {
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return \OC\Share\Share::getItemSharedWithUser($itemType, $itemSource, $user);
}
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/**
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* Get the item of item type shared with the current user by source
* @param string Item type
* @param string Item source
* @param int Format (optional) Format type must be defined by the backend
* @param mixed Parameters
* @param bool include collections
* @return Return depends on format
*/
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public static function getItemSharedWithBySource($itemType, $itemSource, $format = self::FORMAT_NONE,
$parameters = null, $includeCollections = false) {
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return \OC\Share\Share::getItemSharedWithBySource($itemType, $itemSource, $format, $parameters, $includeCollections);
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}
/**
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* Get the item of item type shared by a link
* @param string Item type
* @param string Item source
* @param string Owner of link
* @return Item
*/
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public static function getItemSharedWithByLink($itemType, $itemSource, $uidOwner) {
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return \OC\Share\Share::getItemSharedWithByLink($itemType, $itemSource, $uidOwner);
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}
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/**
* Based on the given token the share information will be returned - password protected shares will be verified
* @param string $token
* @return array | bool false will be returned in case the token is unknown or unauthorized
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*/
public static function getShareByToken($token, $checkPasswordProtection = true) {
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return \OC\Share\Share::getShareByToken($token, $checkPasswordProtection);
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}
/**
* resolves reshares down to the last real share
* @param $linkItem
* @return $fileOwner
*/
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public static function resolveReShare($linkItem) {
return \OC\Share\Share::resolveReShare($linkItem);
}
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/**
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* Get the shared items of item type owned by the current user
* @param string Item type
* @param int Format (optional) Format type must be defined by the backend
* @param mixed Parameters
* @param int Number of items to return (optional) Returns all by default
* @param bool include collections
* @return Return depends on format
*/
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public static function getItemsShared($itemType, $format = self::FORMAT_NONE, $parameters = null,
$limit = -1, $includeCollections = false) {
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return \OC\Share\Share::getItemsShared($itemType, $format, $parameters, $limit, $includeCollections);
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}
/**
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* Get the shared item of item type owned by the current user
* @param string Item type
* @param string Item source
* @param int Format (optional) Format type must be defined by the backend
* @param mixed Parameters
* @param bool include collections
* @return Return depends on format
*/
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public static function getItemShared($itemType, $itemSource, $format = self::FORMAT_NONE,
$parameters = null, $includeCollections = false) {
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return \OC\Share\Share::getItemShared($itemType, $itemSource, $format, $parameters, $includeCollections);
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}
/**
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* Get all users an item is shared with
* @param string Item type
* @param string Item source
* @param string Owner
* @param bool Include collections
* @praram bool check expire date
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* @return Return array of users
*/
public static function getUsersItemShared($itemType, $itemSource, $uidOwner, $includeCollections = false, $checkExpireDate = true) {
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return \OC\Share\Share::getUsersItemShared($itemType, $itemSource, $uidOwner, $includeCollections, $checkExpireDate);
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}
/**
* Share an item with a user, group, or via private link
* @param string $itemType
* @param string $itemSource
* @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
* @param string $shareWith User or group the item is being shared with
* @param int $permissions CRUDS
* @param null $itemSourceName
* @throws \Exception
* @internal param \OCP\Item $string type
* @internal param \OCP\Item $string source
* @internal param \OCP\SHARE_TYPE_USER $int , SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
* @internal param \OCP\User $string or group the item is being shared with
* @internal param \OCP\CRUDS $int permissions
* @return bool|string Returns true on success or false on failure, Returns token on success for links
*/
public static function shareItem($itemType, $itemSource, $shareType, $shareWith, $permissions, $itemSourceName = null) {
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return \OC\Share\Share::shareItem($itemType, $itemSource, $shareType, $shareWith, $permissions, $itemSourceName);
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}
/**
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* Unshare an item from a user, group, or delete a private link
* @param string Item type
* @param string Item source
* @param int SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
* @param string User or group the item is being shared with
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* @return Returns true on success or false on failure
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*/
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public static function unshare($itemType, $itemSource, $shareType, $shareWith) {
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return \OC\Share\Share::unshare($itemType, $itemSource, $shareType, $shareWith);
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}
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/**
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* Unshare an item from all users, groups, and remove all links
* @param string Item type
* @param string Item source
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* @return Returns true on success or false on failure
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*/
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public static function unshareAll($itemType, $itemSource) {
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return \OC\Share\Share::unshareAll($itemType, $itemSource);
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}
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/**
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* Unshare an item shared with the current user
* @param string Item type
* @param string Item target
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* @return Returns true on success or false on failure
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*
* Unsharing from self is not allowed for items inside collections
*/
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public static function unshareFromSelf($itemType, $itemTarget) {
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return \OC\Share\Share::unshareFromSelf($itemType, $itemTarget);
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}
/**
* sent status if users got informed by mail about share
* @param string $itemType
* @param string $itemSource
* @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
* @param bool $status
*/
public static function setSendMailStatus($itemType, $itemSource, $shareType, $status) {
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return \OC\Share\Share::setSendMailStatus($itemType, $itemSource, $shareType, $status);
}
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/**
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* Set the permissions of an item for a specific user or group
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* @param string Item type
* @param string Item source
* @param int SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
* @param string User or group the item is being shared with
* @param int CRUDS permissions
* @return Returns true on success or false on failure
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*/
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public static function setPermissions($itemType, $itemSource, $shareType, $shareWith, $permissions) {
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return \OC\Share\Share::setPermissions($itemType, $itemSource, $shareType, $shareWith, $permissions);
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}
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/**
* Set expiration date for a share
* @param string $itemType
* @param string $itemSource
* @param string $date expiration date
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* @return Share_Backend
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*/
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public static function setExpirationDate($itemType, $itemSource, $date) {
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return \OC\Share\Share::setExpirationDate($itemType, $itemSource, $date);
}
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/**
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* Get the backend class for the specified item type
* @param string $itemType
* @return Share_Backend
*/
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public static function getBackend($itemType) {
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return \OC\Share\Share::getBackend($itemType);
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}
/**
* Delete all shares with type SHARE_TYPE_LINK
*/
public static function removeAllLinkShares() {
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return \OC\Share\Share::removeAllLinkShares();
}
/**
* In case a password protected link is not yet authenticated this function will return false
*
* @param array $linkItem
* @return bool
*/
public static function checkPasswordProtectedShare(array $linkItem) {
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return \OC\Share\Share::checkPasswordProtectedShare($linkItem);
}
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}
/**
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* Interface that apps must implement to share content.
*/
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interface Share_Backend {
/**
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* Get the source of the item to be stored in the database
* @param string Item source
* @param string Owner of the item
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* @return mixed|array|false Source
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*
* Return an array if the item is file dependent, the array needs two keys: 'item' and 'file'
* Return false if the item does not exist for the user
*
* The formatItems() function will translate the source returned back into the item
*/
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public function isValidSource($itemSource, $uidOwner);
/**
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* Get a unique name of the item for the specified user
* @param string Item source
* @param string|false User the item is being shared with
* @param array|null List of similar item names already existing as shared items
* @return string Target name
*
* This function needs to verify that the user does not already have an item with this name.
* If it does generate a new name e.g. name_#
*/
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public function generateTarget($itemSource, $shareWith, $exclude = null);
/**
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* Converts the shared item sources back into the item in the specified format
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* @param array Shared items
* @param int Format
* @return TODO
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*
* The items array is a 3-dimensional array with the item_source as the
* first key and the share id as the second key to an array with the share
* info.
*
* The key/value pairs included in the share info depend on the function originally called:
* If called by getItem(s)Shared: id, item_type, item, item_source,
* share_type, share_with, permissions, stime, file_source
*
* If called by getItem(s)SharedWith: id, item_type, item, item_source,
* item_target, share_type, share_with, permissions, stime, file_source,
* file_target
*
* This function allows the backend to control the output of shared items with custom formats.
* It is only called through calls to the public getItem(s)Shared(With) functions.
*/
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public function formatItems($items, $format, $parameters = null);
}
/**
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* Interface for share backends that share content that is dependent on files.
* Extends the Share_Backend interface.
*/
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interface Share_Backend_File_Dependent extends Share_Backend {
/**
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* Get the file path of the item
* @param string Item source
* @param string User that is the owner of shared item
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*/
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public function getFilePath($itemSource, $uidOwner);
}
/**
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* Interface for collections of of items implemented by another share backend.
* Extends the Share_Backend interface.
*/
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interface Share_Backend_Collection extends Share_Backend {
/**
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* Get the sources of the children of the item
* @param string Item source
* @return array Returns an array of children each inside an array with the keys: source, target, and file_path if applicable
*/
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public function getChildren($itemSource);
}