@ -1,32 +1,32 @@
<?php
/**
* ownCloud
*
* @author Michael Gapczynski
* @copyright 2012 Michael Gapczynski mtgap@owncloud.com
*
* 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 / > .
*/
* ownCloud
*
* @author Michael Gapczynski
* @copyright 2012 Michael Gapczynski mtgap@owncloud.com
*
* 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 / > .
*/
namespace OCP;
/**
* 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
*/
* 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 {
const SHARE_TYPE_USER = 0;
@ -37,19 +37,19 @@ class Share {
const SHARE_TYPE_REMOTE = 6;
/** CRUDS permissions (Create, Read, Update, Delete, Share) using a bitmask
* Construct permissions for share() and setPermissions with Or (|) e.g.
* Give user read and update permissions: PERMISSION_READ | PERMISSION_UPDATE
*
* Check if permission is granted with And (& ) e.g. Check if delete is
* granted: if ($permissions & PERMISSION_DELETE)
*
* Remove permissions with And (& ) and Not (~) e.g. Remove the update
* permission: $permissions & = ~PERMISSION_UPDATE
*
* Apps are required to handle permissions on their own, this class only
* stores and manages the permissions of shares
* @see lib/public/constants.php
*/
* Construct permissions for share() and setPermissions with Or (|) e.g.
* Give user read and update permissions: PERMISSION_READ | PERMISSION_UPDATE
*
* Check if permission is granted with And (& ) e.g. Check if delete is
* granted: if ($permissions & PERMISSION_DELETE)
*
* Remove permissions with And (& ) and Not (~) e.g. Remove the update
* permission: $permissions & = ~PERMISSION_UPDATE
*
* Apps are required to handle permissions on their own, this class only
* stores and manages the permissions of shares
* @see lib/public/constants.php
*/
const FORMAT_NONE = -1;
const FORMAT_STATUSES = -2;
@ -64,13 +64,13 @@ class Share {
private static $isResharingAllowed;
/**
* Register a sharing backend class that implements OCP\Share_Backend for an item type
* @param string Item type
* @param string Backend class
* @param string (optional) Depends on item type
* @param array (optional) List of supported file extensions if this item type depends on files
* @return Returns true if backend is registered or false if error
*/
* Register a sharing backend class that implements OCP\Share_Backend for an item type
* @param string Item type
* @param string Backend class
* @param string (optional) Depends on item type
* @param array (optional) List of supported file extensions if this item type depends on files
* @return Returns true if backend is registered or false if error
*/
public static function registerBackend($itemType, $class, $collectionOf = null, $supportedFileExtensions = null) {
if (self::isEnabled()) {
if (!isset(self::$backendTypes[$itemType])) {
@ -94,11 +94,11 @@ class Share {
}
/**
* Check if the Share API is enabled
* @return Returns true if enabled or false
*
* The Share API is enabled by default if not configured
*/
* Check if the Share API is enabled
* @return Returns true if enabled or false
*
* The Share API is enabled by default if not configured
*/
public static function isEnabled() {
if (\OC_Appconfig::getValue('core', 'shareapi_enabled', 'yes') == 'yes') {
return true;
@ -107,9 +107,10 @@ class Share {
}
/**
* Prepare a path to be passed to DB as file_target
* @return string Prepared path
*/
* Prepare a path to be passed to DB as file_target
* @param string $path path
* @return string Prepared path
*/
public static function prepFileTarget( $path ) {
// Paths in DB are stored with leading slashes, so add one if necessary
@ -124,14 +125,14 @@ class Share {
}
/**
* Find which users can access a shared item
* @param $path to the file
* @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'
*/
* Find which users can access a shared item
* @param $path to the file
* @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) {
$shares = array();
@ -231,12 +232,12 @@ class Share {
}
/**
* Get the items of item type shared with the current user
* @param string Item type
* @param int Format (optional) Format type must be defined by the backend
* @param int Number of items to return (optional) Returns all by default
* @return Return depends on format
*/
* Get the items of item type shared with the current user
* @param string Item type
* @param int Format (optional) Format type must be defined by the backend
* @param int Number of items to return (optional) Returns all by default
* @return Return depends on format
*/
public static function getItemsSharedWith($itemType, $format = self::FORMAT_NONE,
$parameters = null, $limit = -1, $includeCollections = false) {
return self::getItems($itemType, null, self::$shareTypeUserAndGroups, \OC_User::getUser(), null, $format,
@ -244,12 +245,12 @@ class Share {
}
/**
* Get the item of item type shared with the current user
* @param string $itemType
* @param string $ItemTarget
* @param int $format (optional) Format type must be defined by the backend
* @return Return depends on format
*/
* Get the item of item type shared with the current user
* @param string $itemType
* @param string $ItemTarget
* @param int $format (optional) Format type must be defined by the backend
* @return Return depends on format
*/
public static function getItemSharedWith($itemType, $itemTarget, $format = self::FORMAT_NONE,
$parameters = null, $includeCollections = false) {
return self::getItems($itemType, $itemTarget, self::$shareTypeUserAndGroups, \OC_User::getUser(), null, $format,
@ -306,12 +307,14 @@ class Share {
}
/**
* Get the item of item type shared with the current user by source
* @param string Item type
* @param string Item source
* @param int Format (optional) Format type must be defined by the backend
* @return Return depends on format
*/
* Get the item of item type shared with the current user by source
* @param string Item type
* @param string Item source
* @param int Format (optional) Format type must be defined by the backend
* @param mixed Parameters
* @param bool include collections
* @return Return depends on format
*/
public static function getItemSharedWithBySource($itemType, $itemSource, $format = self::FORMAT_NONE,
$parameters = null, $includeCollections = false) {
return self::getItems($itemType, $itemSource, self::$shareTypeUserAndGroups, \OC_User::getUser(), null, $format,
@ -319,12 +322,12 @@ class Share {
}
/**
* Get the item of item type shared by a link
* @param string Item type
* @param string Item source
* @param string Owner of link
* @return Item
*/
* Get the item of item type shared by a link
* @param string Item type
* @param string Item source
* @param string Owner of link
* @return Item
*/
public static function getItemSharedWithByLink($itemType, $itemSource, $uidOwner) {
return self::getItems($itemType, $itemSource, self::SHARE_TYPE_LINK, null, $uidOwner, self::FORMAT_NONE,
null, 1);
@ -379,12 +382,14 @@ class Share {
/**
* Get the shared items of item type owned by the current user
* @param string Item type
* @param int Format (optional) Format type must be defined by the backend
* @param int Number of items to return (optional) Returns all by default
* @return Return depends on format
*/
* Get the shared items of item type owned by the current user
* @param string Item type
* @param int Format (optional) Format type must be defined by the backend
* @param mixed Parameters
* @param int Number of items to return (optional) Returns all by default
* @param bool include collections
* @return Return depends on format
*/
public static function getItemsShared($itemType, $format = self::FORMAT_NONE, $parameters = null,
$limit = -1, $includeCollections = false) {
return self::getItems($itemType, null, null, null, \OC_User::getUser(), $format,
@ -392,12 +397,14 @@ class Share {
}
/**
* Get the shared item of item type owned by the current user
* @param string Item type
* @param string Item source
* @param int Format (optional) Format type must be defined by the backend
* @return Return depends on format
*/
* Get the shared item of item type owned by the current user
* @param string Item type
* @param string Item source
* @param int Format (optional) Format type must be defined by the backend
* @param mixed Parameters
* @param bool include collections
* @return Return depends on format
*/
public static function getItemShared($itemType, $itemSource, $format = self::FORMAT_NONE,
$parameters = null, $includeCollections = false) {
return self::getItems($itemType, $itemSource, null, null, \OC_User::getUser(), $format,
@ -405,13 +412,13 @@ class Share {
}
/**
* Get all users an item is shared with
* @param string Item type
* @param string Item source
* @param string Owner
* @param bool Include collections
* @return Return array of users
*/
* Get all users an item is shared with
* @param string Item type
* @param string Item source
* @param string Owner
* @param bool Include collections
* @return Return array of users
*/
public static function getUsersItemShared($itemType, $itemSource, $uidOwner, $includeCollections = false) {
$users = array();
$items = self::getItems($itemType, $itemSource, null, null, $uidOwner, self::FORMAT_NONE, null, -1, $includeCollections);
@ -617,13 +624,13 @@ class Share {
}
/**
* Unshare an item from a user, group, or delete a private link
* @param string Item type
* @param string Item source
* @param int SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
* @param string User or group the item is being shared with
* @return Returns true on success or false on failure
*/
* Unshare an item from a user, group, or delete a private link
* @param string Item type
* @param string Item source
* @param int SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
* @param string User or group the item is being shared with
* @return Returns true on success or false on failure
*/
public static function unshare($itemType, $itemSource, $shareType, $shareWith) {
if ($item = self::getItems($itemType, $itemSource, $shareType, $shareWith, \OC_User::getUser(),
self::FORMAT_NONE, null, 1)) {
@ -650,11 +657,11 @@ class Share {
}
/**
* Unshare an item from all users, groups, and remove all links
* @param string Item type
* @param string Item source
* @return Returns true on success or false on failure
*/
* Unshare an item from all users, groups, and remove all links
* @param string Item type
* @param string Item source
* @return Returns true on success or false on failure
*/
public static function unshareAll($itemType, $itemSource) {
if ($shares = self::getItemShared($itemType, $itemSource)) {
// Pass all the vars we have for now, they may be useful
@ -677,14 +684,13 @@ class Share {
}
/**
* Unshare an item shared with the current user
* @param string Item type
* @param string Item target
* @return Returns true on success or false on failure
*
* Unsharing from self is not allowed for items inside collections
*
*/
* Unshare an item shared with the current user
* @param string Item type
* @param string Item target
* @return Returns true on success or false on failure
*
* Unsharing from self is not allowed for items inside collections
*/
public static function unshareFromSelf($itemType, $itemTarget) {
if ($item = self::getItemSharedWith($itemType, $itemTarget)) {
if ((int)$item['share_type'] === self::SHARE_TYPE_GROUP) {
@ -733,19 +739,17 @@ class Share {
if($result === false) {
\OC_Log::write('OCP\Share', 'Couldn\'t set send mail status', \OC_Log::ERROR);
}
}
/**
* Set the permissions of an item for a specific user or group
* @param string Item type
* @param string Item source
* @param int SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
* @param string User or group the item is being shared with
* @param int CRUDS permissions
* @return Returns true on success or false on failure
*/
* Set the permissions of an item for a specific user or group
* @param string Item type
* @param string Item source
* @param int SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
* @param string User or group the item is being shared with
* @param int CRUDS permissions
* @return Returns true on success or false on failure
*/
public static function setPermissions($itemType, $itemSource, $shareType, $shareWith, $permissions) {
if ($item = self::getItems($itemType, $itemSource, $shareType, $shareWith,
\OC_User::getUser(), self::FORMAT_NONE, null, 1, false)) {
@ -821,6 +825,13 @@ class Share {
throw new \Exception($message);
}
/**
* Set expiration date for a share
* @param string $itemType
* @param string $itemSource
* @param string $date expiration date
* @return Share_Backend
*/
public static function setExpirationDate($itemType, $itemSource, $date) {
if ($items = self::getItems($itemType, $itemSource, null, null, \OC_User::getUser(),
self::FORMAT_NONE, null, -1, false)) {
@ -842,10 +853,10 @@ class Share {
}
/**
* Get the backend class for the specified item type
* @param string $itemType
* @return Share_Backend
*/
* Get the backend class for the specified item type
* @param string $itemType
* @return Share_Backend
*/
public static function getBackend($itemType) {
if (isset(self::$backends[$itemType])) {
return self::$backends[$itemType];
@ -871,12 +882,11 @@ class Share {
}
/**
* Check if resharing is allowed
* @return Returns true if allowed or false
*
* Resharing is allowed by default if not configured
*
*/
* Check if resharing is allowed
* @return Returns true if allowed or false
*
* Resharing is allowed by default if not configured
*/
private static function isResharingAllowed() {
if (!isset(self::$isResharingAllowed)) {
if (\OC_Appconfig::getValue('core', 'shareapi_allow_resharing', 'yes') == 'yes') {
@ -889,10 +899,10 @@ class Share {
}
/**
* Get a list of collection item types for the specified item type
* @param string Item type
* @return array
*/
* Get a list of collection item types for the specified item type
* @param string Item type
* @return array
*/
private static function getCollectionItemTypes($itemType) {
$collectionTypes = array($itemType);
foreach (self::$backendTypes as $type => $backend) {
@ -913,21 +923,21 @@ class Share {
}
/**
* Get shared items from the database
* @param string Item type
* @param string Item source or target (optional)
* @param int SHARE_TYPE_USER, SHARE_TYPE_GROUP, SHARE_TYPE_LINK, $shareTypeUserAndGroups, or $shareTypeGroupUserUnique
* @param string User or group the item is being shared with
* @param string User that is the owner of shared items (optional)
* @param int Format to convert items to with formatItems()
* @param mixed Parameters to pass to formatItems()
* @param int Number of items to return, -1 to return all matches (optional)
* @param bool Include collection item types (optional)
* @return mixed
*
* See public functions getItem(s)... for parameter usage
*
*/
* Get shared items from the database
* @param string Item type
* @param string Item source or target (optional)
* @param int SHARE_TYPE_USER, SHARE_TYPE_GROUP, SHARE_TYPE_LINK, $shareTypeUserAndGroups, or $shareTypeGroupUserUnique
* @param string User or group the item is being shared with
* @param string User that is the owner of shared items (optional)
* @param int Format to convert items to with formatItems()
* @param mixed Parameters to pass to formatItems()
* @param int Number of items to return, -1 to return all matches (optional)
* @param bool Include collection item types (optional)
* @return mixed
*
* See public functions getItem(s)... for parameter usage
*
*/
private static function getItems($itemType, $item = null, $shareType = null, $shareWith = null,
$uidOwner = null, $format = self::FORMAT_NONE, $parameters = null, $limit = -1,
$includeCollections = false, $itemShareWithBySource = false) {
@ -1322,15 +1332,15 @@ class Share {
}
/**
* Put shared item into the database
* @param string Item type
* @param string Item source
* @param int SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
* @param string User or group the item is being shared with
* @param int CRUDS permissions
* @param bool|array Parent folder target (optional)
* @return bool Returns true on success or false on failure
*/
* Put shared item into the database
* @param string Item type
* @param string Item source
* @param int SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
* @param string User or group the item is being shared with
* @param int CRUDS permissions
* @param bool|array Parent folder target (optional)
* @return bool Returns true on success or false on failure
*/
private static function put($itemType, $itemSource, $shareType, $shareWith, $uidOwner,
$permissions, $parentFolder = null, $token = null, $itemSourceName = null) {
$backend = self::getBackend($itemType);
@ -1561,15 +1571,15 @@ class Share {
}
/**
* Generate a unique target for the item
* @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 string The suggested target originating from a reshare (optional)
* @param int The id of the parent group share (optional)
* @return string Item target
*/
* Generate a unique target for the item
* @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 string The suggested target originating from a reshare (optional)
* @param int The id of the parent group share (optional)
* @return string Item target
*/
private static function generateTarget($itemType, $itemSource, $shareType, $shareWith, $uidOwner,
$suggestedTarget = null, $groupParent = null) {
$backend = self::getBackend($itemType);
@ -1677,11 +1687,11 @@ class Share {
}
/**
* Delete all reshares of an item
* @param int Id of item to delete
* @param bool If true, exclude the parent from the delete (optional)
* @param string The user that the parent was shared with (optinal)
*/
* Delete all reshares of an item
* @param int Id of item to delete
* @param bool If true, exclude the parent from the delete (optional)
* @param string The user that the parent was shared with (optinal)
*/
private static function delete($parent, $excludeParent = false, $uidOwner = null) {
$ids = array($parent);
$parents = array($parent);
@ -1749,9 +1759,12 @@ class Share {
}
/**
* Hook Listeners
*/
* Hook Listeners
*/
/**
* @param array arguments
*/
public static function post_deleteUser($arguments) {
// Delete any items shared with the deleted user
$query = \OC_DB::prepare('DELETE FROM `*PREFIX*share`'
@ -1765,6 +1778,9 @@ class Share {
}
}
/**
* @param array arguments
*/
public static function post_addToGroup($arguments) {
// Find the group shares and check if the user needs a unique target
$query = \OC_DB::prepare('SELECT * FROM `*PREFIX*share` WHERE `share_type` = ? AND `share_with` = ?');
@ -1795,6 +1811,9 @@ class Share {
}
}
/**
* @param array arguments
*/
public static function post_removeFromGroup($arguments) {
// TODO Don't call if user deleted?
$sql = 'SELECT `id`, `share_type` FROM `*PREFIX*share`'
@ -1811,6 +1830,9 @@ class Share {
}
}
/**
* @param array arguments
*/
public static function post_deleteGroup($arguments) {
$sql = 'SELECT `id` FROM `*PREFIX*share` WHERE `share_type` = ? AND `share_with` = ?';
$result = \OC_DB::executeAudited($sql, array(self::SHARE_TYPE_GROUP, $arguments['gid']));
@ -1822,84 +1844,84 @@ class Share {
}
/**
* Interface that apps must implement to share content.
*/
* Interface that apps must implement to share content.
*/
interface Share_Backend {
/**
* Get the source of the item to be stored in the database
* @param string Item source
* @param string Owner of the item
* @return mixed|array|false Source
*
* Return an array if the item is file dependent, the array needs two keys: 'item' and 'file'
* Return false if the item does not exist for the user
*
* The formatItems() function will translate the source returned back into the item
*/
* Get the source of the item to be stored in the database
* @param string Item source
* @param string Owner of the item
* @return mixed|array|false Source
*
* Return an array if the item is file dependent, the array needs two keys: 'item' and 'file'
* Return false if the item does not exist for the user
*
* The formatItems() function will translate the source returned back into the item
*/
public function isValidSource($itemSource, $uidOwner);
/**
* Get a unique name of the item for the specified user
* @param string Item source
* @param string|false User the item is being shared with
* @param array|null List of similar item names already existing as shared items
* @return string Target name
*
* This function needs to verify that the user does not already have an item with this name.
* If it does generate a new name e.g. name_#
*/
* Get a unique name of the item for the specified user
* @param string Item source
* @param string|false User the item is being shared with
* @param array|null List of similar item names already existing as shared items
* @return string Target name
*
* This function needs to verify that the user does not already have an item with this name.
* If it does generate a new name e.g. name_#
*/
public function generateTarget($itemSource, $shareWith, $exclude = null);
/**
* Converts the shared item sources back into the item in the specified format
* @param array Shared items
* @param int Format
* @return ?
*
* The items array is a 3-dimensional array with the item_source as the
* first key and the share id as the second key to an array with the share
* info.
*
* The key/value pairs included in the share info depend on the function originally called:
* If called by getItem(s)Shared: id, item_type, item, item_source,
* share_type, share_with, permissions, stime, file_source
*
* If called by getItem(s)SharedWith: id, item_type, item, item_source,
* item_target, share_type, share_with, permissions, stime, file_source,
* file_target
*
* This function allows the backend to control the output of shared items with custom formats.
* It is only called through calls to the public getItem(s)Shared(With) functions.
*/
* Converts the shared item sources back into the item in the specified format
* @param array Shared items
* @param int Format
* @return ?
*
* The items array is a 3-dimensional array with the item_source as the
* first key and the share id as the second key to an array with the share
* info.
*
* The key/value pairs included in the share info depend on the function originally called:
* If called by getItem(s)Shared: id, item_type, item, item_source,
* share_type, share_with, permissions, stime, file_source
*
* If called by getItem(s)SharedWith: id, item_type, item, item_source,
* item_target, share_type, share_with, permissions, stime, file_source,
* file_target
*
* This function allows the backend to control the output of shared items with custom formats.
* It is only called through calls to the public getItem(s)Shared(With) functions.
*/
public function formatItems($items, $format, $parameters = null);
}
/**
* Interface for share backends that share content that is dependent on files.
* Extends the Share_Backend interface.
*/
* Interface for share backends that share content that is dependent on files.
* Extends the Share_Backend interface.
*/
interface Share_Backend_File_Dependent extends Share_Backend {
/**
* Get the file path of the item
*/
* Get the file path of the item
*/
public function getFilePath($itemSource, $uidOwner);
}
/**
* Interface for collections of of items implemented by another share backend.
* Extends the Share_Backend interface.
*/
* Interface for collections of of items implemented by another share backend.
* Extends the Share_Backend interface.
*/
interface Share_Backend_Collection extends Share_Backend {
/**
* Get the sources of the children of the item
* @param string Item source
* @return array Returns an array of children each inside an array with the keys: source, target, and file_path if applicable
*/
* Get the sources of the children of the item
* @param string Item source
* @return array Returns an array of children each inside an array with the keys: source, target, and file_path if applicable
*/
public function getChildren($itemSource);
}
Morris Jobke
13 years ago