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1f8e2e93df
- also added a different approach allowing apps to register themselfs multiple times in the link registry, was necessary as types approach from Nathan changes the usage of the original app, while this adds sub-types like an arbitrary app responded to the link hook
1227 lines
38 KiB
PHP
1227 lines
38 KiB
PHP
<?php
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/**
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* API - Interapplicaton links BO layer
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*
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* Links have two ends each pointing to an entry, each entry is a double:
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* - app app-name or directory-name of an egw application, eg. 'infolog'
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* - id this is the id, eg. an integer or a tupple like '0:INBOX:1234'
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*
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* @link http://www.egroupware.org
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* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @copyright 2001-2008 by RalfBecker@outdoor-training.de
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package api
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* @subpackage link
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* @version $Id$
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*/
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/**
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* Generalized linking between entries of eGroupware apps
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*
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* Please note: this class can NOT and does not need to be initialised, all methods are static
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*
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* To participate in the linking an applications has to implement the following hooks:
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*
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* /**
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* * Hook called by link-class to include app in the appregistry of the linkage
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* *
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* * @param array/string $location location and other parameters (not used)
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* * @return array with method-names
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* *%
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* function search_link($location)
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* {
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* return array(
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* 'query' => 'app.class.link_query', // method to search app for a pattern: array link_query(string $pattern, array $options)
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* 'title' => 'app.class.link_title', // method to return title of an entry of app: string/false/null link_title(int/string $id)
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* 'titles' => 'app.class.link_titles', // method to return multiple titles: array link_title(array $ids)
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* 'view' => array( // get parameters to view an entry of app
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* 'menuaction' => 'app.class.method',
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* ),
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* 'types' => array( // Optional list of sub-types to filter (eg organisations), app to handle different queries
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* 'type_key' => array(
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* 'name' => 'Human Reference',
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* 'icon' => 'app/icon' // Optional icon to use for that sub-type
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* )
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* ),
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* 'view_id' => 'app_id', // name of get parameter of the id
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* 'view_popup' => '400x300', // size of popup (XxY), if view is in popup
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* 'view_list' => 'app.class.method' // Method to be called to display a list of links, method should check $_GET['search'] to filter
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* 'add' => array( // get parameter to add an empty entry to app
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* 'menuaction' => 'app.class.method',
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* ),
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* 'add_app' => 'link_app', // name of get parameter to add links to other app
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* 'add_id' => 'link_id', // --------------------- " ------------------- id
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* 'add_popup' => '400x300', // size of popup (XxY), if add is in popup
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* 'notify' => 'app.class.method', // method to be called if an other applications liks or unlinks with app: notify(array $data)
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* 'file_access' => 'app.class.method', // method to be called to check file access rights, see links_stream_wrapper class
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* // boolean file_access(string $id,int $check,string $rel_path)
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* 'find_extra' => array('name_preg' => '/^(?!.picture.jpg)$/') // extra options to egw_vfs::find, to eg. remove some files from the list of attachments
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* 'edit' => array(
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* 'menuaction' => 'app.class.method',
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* ),
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* 'edit_id' => 'app_id',
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* 'edit_popup' => '400x300',
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* 'additional' => array( // allow one app to register sub-types,
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* 'app-sub' => array( // different from 'types' approach above
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* // every value defined above
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* )
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* )
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* }
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* All entries are optional, thought you only get conected functionality, if you implement them ...
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*
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* The BO-layer implementes some extra features on top of the so-layer:
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* 1) It handles links to not already existing entries. This is used by the eTemplate link-widget, which allows to
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* setup links even for new / not already existing entries, before they get saved.
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* In that case you have to set the first id to 0 for the link-static function and pass the array returned in that id
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* (not the return-value) after saveing your new entry again to the link static function.
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* 2) Attaching files: they are saved in the vfs and not the link-table (!).
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* Attached files are stored under $vfs_basedir='/infolog' in the vfs!
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* 3) It manages the link-registry, in which apps can register themselfs by implementing some hooks
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* 4) It notifies apps, who registered for that service, about changes in the links their entries
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*/
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class egw_link extends solink
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{
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/**
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* appname used for returned attached files (!= 'filemanager'!)
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*/
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const VFS_APPNAME = 'file'; // pseudo-appname for own file-attachments in vfs, this is NOT the vfs-app
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/**
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* Baseurl for the attachments in the vfs
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*/
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const VFS_BASEURL = 'vfs://default/apps';
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/**
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* Turns on debug-messages
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*/
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const DEBUG = false;
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/**
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* other apps can participate in the linking by implementing a 'search_link' hook, which
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* has to return an array in the format of an app_register entry below
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*
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* @var array
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*/
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static $app_register = array(
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'felamimail' => array(
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'add' => array(
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'menuaction' => 'felamimail.uicompose.compose',
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),
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'add_popup' => '700x750',
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),
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);
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/**
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* Caches link titles for a better performance
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*
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* @var array
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*/
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private static $title_cache = array();
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/**
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* Cache file access permissions
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*
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* @var array
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*/
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private static $file_access_cache = array();
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/**
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* Private constructor to forbid instanciated use
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*
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*/
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private function __construct()
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{
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}
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/**
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* initialize our static vars
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*/
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static function init_static( )
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{
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// other apps can participate in the linking by implementing a search_link hook, which
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// has to return an array in the format of an app_register entry
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// for performance reasons, we do it only once / cache it in the session
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if (!($search_link_hooks = $GLOBALS['egw']->session->appsession('search_link_hooks','phpgwapi')))
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{
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$search_link_hooks = $GLOBALS['egw']->hooks->process('search_link', array(), true);
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$GLOBALS['egw']->session->appsession('search_link_hooks','phpgwapi',$search_link_hooks);
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}
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if (is_array($search_link_hooks))
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{
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foreach($search_link_hooks as $app => $data)
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{
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// allow apps to register additional types
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if (isset($data['additional']))
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{
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foreach($data['additional'] as $name => $values)
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{
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self::$app_register[$name] = $values;
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}
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unset($data['additional']);
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}
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if (is_array($data))
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{
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self::$app_register[$app] = $data;
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}
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}
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}
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if (!(self::$title_cache = $GLOBALS['egw']->session->appsession('link_title_cache','phpgwapi')))
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{
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self::$title_cache = array();
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}
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if (!(self::$file_access_cache = $GLOBALS['egw']->session->appsession('link_file_access_cache','phpgwapi')))
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{
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self::$file_access_cache = array();
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}
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//error_log(__METHOD__.'() items in title-cache: '.count(self::$title_cache).' file-access-cache: '.count(self::$file_access_cache));
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}
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/**
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* Called by egw::egw_final to store the title-cache in the session
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*
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*/
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static function save_session_cache()
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{
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//error_log(__METHOD__.'() items in title-cache: '.count(self::$title_cache).' file-access-cache: '.count(self::$file_access_cache));
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$GLOBALS['egw']->session->appsession('link_title_cache','phpgwapi',self::$title_cache);
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$GLOBALS['egw']->session->appsession('link_file_access_cache','phpgwapi',self::$file_access_cache);
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}
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/**
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* creats a link between $app1,$id1 and $app2,$id2 - $id1 does NOT need to exist yet
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*
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* Does NOT check if link already exists.
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* File-attachments return a negative link-id !!!
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*
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* @param string $app1 app of $id1
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* @param string/array &$id1 id of item to linkto or 0 if item not yet created or array with links
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* of not created item or $file-array if $app1 == self::VFS_APPNAME (see below).
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* If $id==0 it will be set on return to an array with the links for the new item.
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* @param string/array $app2 app of 2.linkend or array with links ($id2 not used)
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* @param string $id2='' id of 2. item of $file-array if $app2 == self::VFS_APPNAME (see below)<br>
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* $file array with informations about the file in format of the etemplate file-type<br>
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* $file['name'] name of the file (no directory)<br>
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* $file['type'] mine-type of the file<br>
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* $file['tmp_name'] name of the uploaded file (incl. directory)<br>
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* $file['path'] path of the file on the client computer<br>
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* $file['ip'] of the client (path and ip in $file are only needed if u want a symlink (if possible))
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* @param string $remark='' Remark to be saved with the link (defaults to '')
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* @param int $owner=0 Owner of the link (defaults to user)
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* @param int $lastmod=0 timestamp of last modification (defaults to now=time())
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* @param int $no_notify=0 &1 dont notify $app1, &2 dont notify $app2
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* @return int/boolean False (for db or param-error) or on success link_id (Please not the return-value of $id1)
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*/
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static function link( $app1,&$id1,$app2,$id2='',$remark='',$owner=0,$lastmod=0,$no_notify=0 )
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{
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if (self::DEBUG)
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{
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echo "<p>egw_link::link('$app1',$id1,'".print_r($app2,true)."',".print_r($id2,true).",'$remark',$owner,$lastmod)</p>\n";
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}
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if (!$app1 || !$app2 || $app1 == $app2 && $id1 == $id2)
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{
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return False;
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}
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if (is_array($id1) || !$id1) // create link only in $id1 array
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{
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if (!is_array($id1))
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{
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$id1 = array( );
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}
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$link_id = self::temp_link_id($app2,$id2);
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$id1[$link_id] = array(
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'app' => $app2,
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'id' => $id2,
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'remark' => $remark,
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'owner' => $owner,
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'link_id' => $link_id,
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'lastmod' => time()
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);
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if (self::DEBUG)
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{
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_debug_array($id1);
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}
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return $link_id;
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}
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if (is_array($app2) && !$id2)
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{
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reset($app2);
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$link_id = True;
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while ($link_id && list(,$link) = each($app2))
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{
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if (!is_array($link)) // check for unlink-marker
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{
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//echo "<b>link='$link' is no array</b><br>\n";
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continue;
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}
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if ($link['app'] == self::VFS_APPNAME)
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{
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$link_id = self::attach_file($app1,$id1,$link['id'],$link['remark']);
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}
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else
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{
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$link_id = solink::link($app1,$id1,$link['app'],$link['id'],
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$link['remark'],$link['owner'],$link['lastmod']);
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// notify both sides
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if (!($no_notify&2)) self::notify('link',$link['app'],$link['id'],$app1,$id1,$link_id);
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if (!($no_notify&1)) self::notify('link',$app1,$id1,$link['app'],$link['id'],$link_id);
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}
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}
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return $link_id;
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}
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if ($app1 == self::VFS_APPNAME)
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{
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return self::attach_file($app2,$id2,$id1,$remark);
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}
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elseif ($app2 == self::VFS_APPNAME)
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{
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return self::attach_file($app1,$id1,$id2,$remark);
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}
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$link_id = solink::link($app1,$id1,$app2,$id2,$remark,$owner);
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if (!($no_notify&2)) self::notify('link',$app2,$id2,$app1,$id1,$link_id);
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if (!($no_notify&1)) self::notify('link',$app1,$id1,$app2,$id2,$link_id);
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return $link_id;
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}
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/**
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* generate temporary link_id used as array-key
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*
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* @param string $app app-name
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* @param mixed $id
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* @return string
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*/
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static function temp_link_id($app,$id)
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{
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return $app.':'.($app != self::VFS_APPNAME ? $id : $id['name']);
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}
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/**
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* returns array of links to $app,$id (reimplemented to deal with not yet created items)
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*
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* @param string $app appname
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* @param string/array $id id of entry in $app or array of links if entry not yet created
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* @param string $only_app if set return only links from $only_app (eg. only addressbook-entries) or NOT from if $only_app[0]=='!'
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* @param string $order='link_lastmod DESC' defaults to newest links first
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* @param boolean $cache_titles=false should all titles be queryed and cached (allows to query each link app only once!)
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* This option also removes links not viewable by current user from the result!
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* @return array of links or empty array if no matching links found
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*/
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static function get_links( $app,$id,$only_app='',$order='link_lastmod DESC',$cache_titles=false )
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{
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if (self::DEBUG) echo "<p>egw_link::get_links(app='$app',id='$id',only_app='$only_app',order='$order')</p>\n";
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if (is_array($id) || !$id)
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{
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$ids = array();
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if (is_array($id))
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{
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if (($not_only = $only_app[0] == '!'))
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{
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$only_app = substr(1,$only_app);
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}
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foreach (array_reverse($id) as $link)
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{
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if (is_array($link) // check for unlink-marker
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&& !($only_app && $not_only == ($link['app'] == $only_app)))
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{
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$ids[$link['link_id']] = $only_app ? $link['id'] : $link;
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}
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}
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}
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return $ids;
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}
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$ids = solink::get_links($app,$id,$only_app,$order);
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if (empty($only_app) || $only_app == self::VFS_APPNAME ||
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($only_app[0] == '!' && $only_app != '!'.self::VFS_APPNAME))
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{
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if ($vfs_ids = self::list_attached($app,$id))
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{
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$ids += $vfs_ids;
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}
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}
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//echo "ids=<pre>"; print_r($ids); echo "</pre>\n";
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if ($cache_titles)
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{
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// agregate links by app
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$app_ids = array();
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foreach($ids as $link)
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{
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$app_ids[$link['app']][] = $link['id'];
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}
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foreach($app_ids as $appname => $a_ids)
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{
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self::titles($appname,array_unique($a_ids));
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}
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// remove links, current user has no access, from result
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foreach($ids as $key => $link)
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{
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if (!self::title($link['app'],$link['id']))
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{
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unset($ids[$key]);
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}
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}
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reset($ids);
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}
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return $ids;
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}
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/**
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* Query the links of multiple entries of one application
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*
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* @ToDo also query the attachments in a single query, eg. via a directory listing of /apps/$app
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* @param string $app
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* @param array $ids
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* @param boolean $cache_titles=true should all titles be queryed and cached (allows to query each link app only once!)
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* @param string $only_app if set return only links from $only_app (eg. only addressbook-entries) or NOT from if $only_app[0]=='!'
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* @param string $order='link_lastmod DESC' defaults to newest links first
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* @return array of $id => array($links) pairs
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*/
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static function get_links_multiple($app,array $ids,$cache_titles=true,$only_app='',$order='link_lastmod DESC' )
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{
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if (self::DEBUG) echo "<p>".__METHOD__."('$app',".print_r($ids,true).",$cache_titles,'$only_app','$order')</p>\n";
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if (!$ids)
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{
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return array(); // no ids are linked to nothing
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}
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$links = solink::get_links($app,$ids,$only_app,$order);
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if (empty($only_app) || $only_app == self::VFS_APPNAME ||
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($only_app[0] == '!' && $only_app != '!'.self::VFS_APPNAME))
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{
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// todo do that in a single query, eg. directory listing, too
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foreach($ids as $id)
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{
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if (!isset($links[$id]))
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{
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$links[$id] = array();
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}
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if ($vfs_ids = self::list_attached($app,$id))
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{
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$links[$id] += $vfs_ids;
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}
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}
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}
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if ($cache_titles)
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{
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// agregate links by app
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$app_ids = array();
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foreach($links as $src_id => &$targets)
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{
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foreach($targets as $link)
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{
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$app_ids[$link['app']][] = $link['id'];
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}
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}
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foreach($app_ids as $app => $a_ids)
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{
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self::titles($app,array_unique($a_ids));
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}
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}
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return $links;
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}
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/**
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* Read one link specified by it's link_id or by the two end-points
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*
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* If $id is an array (links not yet created) only link_ids are allowed.
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*
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* @param int/string $app_link_id > 0 link_id of link or app-name of link
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* @param string/array $id='' id if $app_link_id is an appname or array with links, if 1. entry not yet created
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* @param string $app2='' second app
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* @param string $id2='' id in $app2
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* @return array with link-data or False
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*/
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static function get_link($app_link_id,$id='',$app2='',$id2='')
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{
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if (self::DEBUG)
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{
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echo '<p>'.__METHOD__."($app_link_id,$id,$app2,$id2)</p>\n"; echo function_backtrace();
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}
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if (is_array($id))
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{
|
|
if (strpos($app_link_id,':') === false) $app_link_id = self::temp_link_id($app2,$id2); // create link_id of temporary link, if not given
|
|
|
|
if (isset($id[$app_link_id]) && is_array($id[$app_link_id])) // check for unlinked-marker
|
|
{
|
|
return $id[$app_link_id];
|
|
}
|
|
return False;
|
|
}
|
|
if ((int)$app_link_id < 0 || $app_link_id == self::VFS_APPNAME || $app2 == self::VFS_APPNAME)
|
|
{
|
|
if ((int)$app_link_id < 0) // vfs link_id ?
|
|
{
|
|
return self::fileinfo2link(-$app_link_id);
|
|
}
|
|
if ($app_link_id == self::VFS_APPNAME)
|
|
{
|
|
return self::info_attached($app2,$id2,$id);
|
|
}
|
|
return self::info_attached($app_link_id,$id,$id2);
|
|
}
|
|
return solink::get_link($app_link_id,$id,$app2,$id2);
|
|
}
|
|
|
|
/**
|
|
* Remove link with $link_id or all links matching given $app,$id
|
|
*
|
|
* Note: if $link_id != '' and $id is an array: unlink removes links from that array only
|
|
* unlink has to be called with &$id to see the result (depricated) or unlink2 has to be used !!!
|
|
*
|
|
* @param $link_id link-id to remove if > 0
|
|
* @param string $app='' appname of first endpoint
|
|
* @param string/array $id='' id in $app or array with links, if 1. entry not yet created
|
|
* @param string $app2='' app of second endpoint
|
|
* @param string $id2='' id in $app2
|
|
* @return the number of links deleted
|
|
*/
|
|
static function unlink($link_id,$app='',$id='',$owner='',$app2='',$id2='')
|
|
{
|
|
return self::unlink2($link_id,$app,$id,$owner,$app2,$id2);
|
|
}
|
|
|
|
/**
|
|
* Remove link with $link_id or all links matching given $app,$id
|
|
*
|
|
* @param $link_id link-id to remove if > 0
|
|
* @param string $app='' appname of first endpoint
|
|
* @param string/array &$id='' id in $app or array with links, if 1. entry not yet created
|
|
* @param string $app2='' app of second endpoint, or !file (other !app are not yet supported!)
|
|
* @param string $id2='' id in $app2
|
|
* @return the number of links deleted
|
|
*/
|
|
static function unlink2($link_id,$app,&$id,$owner='',$app2='',$id2='')
|
|
{
|
|
if (self::DEBUG)
|
|
{
|
|
echo "<p>egw_link::unlink('$link_id','$app','$id','$owner','$app2','$id2')</p>\n";
|
|
}
|
|
if ($link_id < 0) // vfs-link?
|
|
{
|
|
return self::delete_attached(-$link_id);
|
|
}
|
|
elseif ($app == self::VFS_APPNAME)
|
|
{
|
|
return self::delete_attached($app2,$id2,$id);
|
|
}
|
|
elseif ($app2 == self::VFS_APPNAME)
|
|
{
|
|
return self::delete_attached($app,$id,$id2);
|
|
}
|
|
if (!is_array($id))
|
|
{
|
|
if (!$link_id && !$app2 && !$id2 && $app2 != '!'.self::VFS_APPNAME)
|
|
{
|
|
self::delete_attached($app,$id); // deleting all attachments
|
|
self::delete_cache($app,$id);
|
|
}
|
|
$deleted =& solink::unlink($link_id,$app,$id,$owner,$app2 != '!'.self::VFS_APPNAME ? $app2 : '',$id2);
|
|
|
|
// only notify on real links, not the one cached for writing or fileattachments
|
|
self::notify_unlink($deleted);
|
|
|
|
return count($deleted);
|
|
}
|
|
if (!$link_id) $link_id = self::temp_link_id($app2,$id2); // create link_id of temporary link, if not given
|
|
|
|
if (isset($id[$link_id]))
|
|
{
|
|
$id[$link_id] = False; // set the unlink marker
|
|
|
|
if (self::DEBUG)
|
|
{
|
|
_debug_array($id);
|
|
}
|
|
return True;
|
|
}
|
|
return False;
|
|
}
|
|
|
|
/**
|
|
* get list/array of link-aware apps the user has rights to use
|
|
*
|
|
* @param string $must_support capability the apps need to support, eg. 'add', default ''=list all apps
|
|
* @return array with app => title pairs
|
|
*/
|
|
static function app_list($must_support='')
|
|
{
|
|
$apps = array();
|
|
foreach(self::$app_register as $app => $reg)
|
|
{
|
|
if ($must_support && !isset($reg[$must_support])) continue;
|
|
|
|
if ($GLOBALS['egw_info']['user']['apps'][$app])
|
|
{
|
|
$apps[$app] = $GLOBALS['egw_info']['apps'][$app]['title'];
|
|
}
|
|
}
|
|
return $apps;
|
|
}
|
|
|
|
/**
|
|
* Searches for a $pattern in the entries of $app
|
|
*
|
|
* @param string $app app to search
|
|
* @param string $pattern pattern to search
|
|
* @param string $type Search only a certain sub-type of records (optional)
|
|
* @return array with $id => $title pairs of matching entries of app
|
|
*/
|
|
static function query($app,$pattern, &$options = array())
|
|
{
|
|
if ($app == '' || !is_array($reg = self::$app_register[$app]) || !isset($reg['query']))
|
|
{
|
|
return array();
|
|
}
|
|
$method = $reg['query'];
|
|
|
|
if (self::DEBUG)
|
|
{
|
|
echo "<p>egw_link::query('$app','$pattern') => '$method'</p>\n";
|
|
echo "Options: "; _debug_array($options);
|
|
}
|
|
|
|
// See etemplate's nextmatch widget, following was copied from there
|
|
// allow static callbacks
|
|
if(strpos($method,'::') !== false)
|
|
{
|
|
// workaround for php < 5.3: do NOT call it static, but allow application code to specify static callbacks
|
|
if (version_compare(PHP_VERSION,'5.3','<')) list($class,$method) = explode('::',$method);
|
|
}
|
|
else
|
|
{
|
|
list($app,$class,$method) = explode('.',$method);
|
|
}
|
|
if ($class)
|
|
{
|
|
if (!$app && !is_object($GLOBALS[$class]))
|
|
{
|
|
$GLOBALS[$class] = new $class();
|
|
}
|
|
if (is_object($GLOBALS[$class])) // use existing instance (put there by a previous CreateObject)
|
|
{
|
|
$obj = $GLOBALS[$class];
|
|
}
|
|
else
|
|
{
|
|
$obj = CreateObject($app.'.'.$class);
|
|
}
|
|
}
|
|
if(is_callable($method)) // php5.3+ call
|
|
{
|
|
$result = call_user_func($method,$pattern,$options);
|
|
}
|
|
elseif(is_object($obj) && method_exists($obj,$method))
|
|
{
|
|
$result = $obj->$method($pattern,$options);
|
|
}
|
|
else
|
|
{
|
|
// Fall back to original method
|
|
$result = ExecMethod2($method,$pattern,$options);
|
|
}
|
|
|
|
if (!isset($options['total']))
|
|
{
|
|
$options['total'] = count($result);
|
|
}
|
|
if (is_array($result) && (isset($options['start']) || (isset($options['num_rows']) && count($result) > $options['num_rows'])))
|
|
{
|
|
$result = array_slice($result, $options['start'], (isset($options['num_rows']) ? $options['num_rows'] : count($result)), true);
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* returns the title (short description) of entry $id and $app
|
|
*
|
|
* @param string $app appname
|
|
* @param string $id id in $app
|
|
* @param array $link=null link-data for file-attachments
|
|
* @return string/boolean string with title, null if $id does not exist in $app or false if no perms to view it
|
|
*/
|
|
static function title($app,$id,$link=null)
|
|
{
|
|
if (!$id) return '';
|
|
|
|
$title =& self::get_cache($app,$id);
|
|
if (isset($title) && !empty($title) && !is_array($id))
|
|
{
|
|
if (self::DEBUG) echo '<p>'.__METHOD__."('$app','$id')='$title' (from cache)</p>\n";
|
|
return $title;
|
|
}
|
|
if ($app == self::VFS_APPNAME)
|
|
{
|
|
if (is_array($id) && $link)
|
|
{
|
|
$link = $id;
|
|
$title = $link['name'];
|
|
}
|
|
else
|
|
{
|
|
$title = $id;
|
|
}
|
|
/* disabling mime-type and size in link-title of attachments, as it clutters the UI
|
|
and users dont need it most of the time. These details can allways be views in filemanager.
|
|
if (is_array($link))
|
|
{
|
|
$title .= ': '.$link['type'] . ' '.egw_vfs::hsize($link['size']);
|
|
}*/
|
|
if (self::DEBUG) echo '<p>'.__METHOD__."('$app','$id')='$title' (file)</p>\n";
|
|
return urldecode($title);
|
|
}
|
|
if ($app == '' || !is_array($reg = self::$app_register[$app]) || !isset($reg['title']))
|
|
{
|
|
if (self::DEBUG) echo "<p>".__METHOD__."('$app','$id') something is wrong!!!</p>\n";
|
|
return array();
|
|
}
|
|
$method = $reg['title'];
|
|
|
|
$title = ExecMethod($method,$id);
|
|
|
|
if ($id && is_null($title)) // $app,$id has been deleted ==> unlink all links to it
|
|
{
|
|
self::unlink(0,$app,$id);
|
|
if (self::DEBUG) echo '<p>'.__METHOD__."('$app','$id') unlinked, as $method returned null</p>\n";
|
|
return False;
|
|
}
|
|
if (self::DEBUG) echo '<p>'.__METHOD__."('$app','$id')='$title' (from $method)</p>\n";
|
|
|
|
return $title;
|
|
}
|
|
|
|
/**
|
|
* Maximum number of titles to query from an application at once (to NOT trash mysql)
|
|
*/
|
|
const MAX_TITLES_QUERY = 100;
|
|
|
|
/**
|
|
* Query the titles off multiple id's of one app
|
|
*
|
|
* Apps can implement that hook, if they have a quicker (eg. less DB queries) method to query the title of multiple entries.
|
|
* If it's not implemented, we call the regular title method multiple times.
|
|
*
|
|
* @param string $app
|
|
* @param array $ids
|
|
*/
|
|
static function titles($app,array $ids)
|
|
{
|
|
if (self::DEBUG)
|
|
{
|
|
echo "<p>".__METHOD__."($app,".implode(',',$ids).")</p>\n";
|
|
}
|
|
$titles = $ids_to_query = array();
|
|
foreach($ids as $id)
|
|
{
|
|
$title =& self::get_cache($app,$id);
|
|
if (!isset($title))
|
|
{
|
|
if (isset(self::$app_register[$app]['titles']))
|
|
{
|
|
$ids_to_query[] = $id; // titles method --> collect links to query at once
|
|
}
|
|
else
|
|
{
|
|
$title = self::title($app,$id); // no titles method --> fallback to query each link separate
|
|
}
|
|
}
|
|
$titles[$id] = $title;
|
|
}
|
|
if ($ids_to_query)
|
|
{
|
|
for ($n = 0; $ids = array_slice($ids_to_query,$n*self::MAX_TITLES_QUERY,self::MAX_TITLES_QUERY); ++$n)
|
|
{
|
|
foreach(ExecMethod(self::$app_register[$app]['titles'],$ids) as $id => $t)
|
|
{
|
|
$title =& self::get_cache($app,$id);
|
|
$titles[$id] = $title = $t;
|
|
}
|
|
}
|
|
}
|
|
return $titles;
|
|
}
|
|
|
|
/**
|
|
* Add new entry to $app, evtl. already linked to $to_app, $to_id
|
|
*
|
|
* @param string $app appname of entry to create
|
|
* @param string $to_app='' appname to link the new entry to
|
|
* @param string $to_id =''id in $to_app
|
|
* @return array/boolean with name-value pairs for link to add-methode of $app or false if add not supported
|
|
*/
|
|
static function add($app,$to_app='',$to_id='')
|
|
{
|
|
//echo "<p>egw_link::add('$app','$to_app','$to_id') app_register[$app] ="; _debug_array($app_register[$app]);
|
|
if ($app == '' || !is_array($reg = self::$app_register[$app]) || !isset($reg['add']))
|
|
{
|
|
return false;
|
|
}
|
|
$params = $reg['add'];
|
|
|
|
if ($reg['add_app'] && $to_app && $reg['add_id'] && $to_id)
|
|
{
|
|
$params[$reg['add_app']] = $to_app;
|
|
$params[$reg['add_id']] = $to_id;
|
|
}
|
|
return $params;
|
|
}
|
|
|
|
/**
|
|
* Edit entry $id of $app
|
|
*
|
|
* @param string $app appname of entry
|
|
* @param string $id id in $app
|
|
* @param string &$popup=null on return popup size eg. '600x400' or null
|
|
* @return array|boolean with name-value pairs for link to edit-methode of $app or false if edit not supported
|
|
*/
|
|
static function edit($app,$id,&$popup=null)
|
|
{
|
|
//echo "<p>egw_link::add('$app','$to_app','$to_id') app_register[$app] ="; _debug_array($app_register[$app]);
|
|
if (empty($app) || empty($id) || !is_array($reg = self::$app_register[$app]) || !isset($reg['edit']))
|
|
{
|
|
return false;
|
|
}
|
|
$params = $reg['edit'];
|
|
$params[$reg['edit_id']] = $id;
|
|
|
|
$popup = $reg['edit_popup'];
|
|
|
|
return $params;
|
|
}
|
|
|
|
/**
|
|
* view entry $id of $app
|
|
*
|
|
* @param string $app appname
|
|
* @param string $id id in $app
|
|
* @param array $link=null link-data for file-attachments
|
|
* @return array with name-value pairs for link to view-methode of $app to view $id
|
|
*/
|
|
static function view($app,$id,$link=null)
|
|
{
|
|
if ($app == self::VFS_APPNAME && !empty($id) && is_array($link))
|
|
{
|
|
return egw_vfs::download_url(self::vfs_path($link['app2'],$link['id2'],$link['id'],true));
|
|
}
|
|
if ($app == '' || !is_array($reg = self::$app_register[$app]) || !isset($reg['view']) || !isset($reg['view_id']))
|
|
{
|
|
return array();
|
|
}
|
|
$view = $reg['view'];
|
|
|
|
$names = explode(':',$reg['view_id']);
|
|
if (count($names) > 1)
|
|
{
|
|
$id = explode(':',$id);
|
|
while (list($n,$name) = each($names))
|
|
{
|
|
$view[$name] = $id[$n];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$view[$reg['view_id']] = $id;
|
|
}
|
|
return $view;
|
|
}
|
|
|
|
/**
|
|
* Check if $app uses a popup for $action
|
|
*
|
|
* @param string $app app-name
|
|
* @param string $action='view' name of the action, atm. 'view' or 'add'
|
|
* @return boolean|string false if no popup is used or $app is not registered, otherwise string with the prefered popup size (eg. '640x400)
|
|
*/
|
|
static function is_popup($app,$action='view')
|
|
{
|
|
return self::get_registry($app,$action.'_popup');
|
|
}
|
|
|
|
/**
|
|
* Check if $app is in the registry and has an entry for $name
|
|
*
|
|
* @param string $app app-name
|
|
* @param string $name name / key in the registry, eg. 'view'
|
|
* @return boolean|string false if $app is not registered, otherwise string with the value for $name
|
|
*/
|
|
static function get_registry($app,$name)
|
|
{
|
|
$reg = self::$app_register[$app];
|
|
|
|
return isset($reg) ? $reg[$name] : false;
|
|
}
|
|
|
|
/**
|
|
* path to the attached files of $app/$ip or the directory for $app if no $id,$file given
|
|
*
|
|
* All link-files are based in the vfs-subdir '/apps/'.$app
|
|
*
|
|
* @param string $app appname
|
|
* @param string $id='' id in $app
|
|
* @param string $file='' filename
|
|
* @param boolean $just_the_path=false return url or just the vfs path
|
|
* @return string/array path or array with path and relatives, depending on $relatives
|
|
*/
|
|
static function vfs_path($app,$id='',$file='',$just_the_path=false)
|
|
{
|
|
$path = self::VFS_BASEURL;
|
|
|
|
if ($app)
|
|
{
|
|
$path .= '/'.$app;
|
|
|
|
if ($id)
|
|
{
|
|
$path .= '/'.$id;
|
|
|
|
if ($file)
|
|
{
|
|
$path .= '/'.$file;
|
|
}
|
|
}
|
|
}
|
|
if ($just_the_path)
|
|
{
|
|
$path = parse_url($path,PHP_URL_PATH);
|
|
}
|
|
else
|
|
{
|
|
$path = egw_vfs::resolve_url($path);
|
|
}
|
|
//error_log(__METHOD__."($app,$id,$file)=$path");
|
|
return $path;
|
|
}
|
|
|
|
/**
|
|
* Put a file to the corrosponding place in the VFS and set the attributes
|
|
*
|
|
* @param string $app appname to linke the file to
|
|
* @param string $id id in $app
|
|
* @param array $file informations about the file in format of the etemplate file-type
|
|
* $file['name'] name of the file (no directory)
|
|
* $file['type'] mine-type of the file
|
|
* $file['tmp_name'] name of the uploaded file (incl. directory)
|
|
* $file['path'] path of the file on the client computer
|
|
* $file['ip'] of the client (path and ip are only needed if u want a symlink (if possible))
|
|
* @param string $comment='' comment to add to the link
|
|
* @return int negative id of egw_sqlfs table as negative link-id's are for vfs attachments
|
|
*/
|
|
static function attach_file($app,$id,$file,$comment='')
|
|
{
|
|
$entry_dir = self::vfs_path($app,$id);
|
|
if (self::DEBUG)
|
|
{
|
|
echo "<p>attach_file: app='$app', id='$id', tmp_name='$file[tmp_name]', name='$file[name]', size='$file[size]', type='$file[type]', path='$file[path]', ip='$file[ip]', comment='$comment', entry_dir='$entry_dir'</p>\n";
|
|
}
|
|
if (file_exists($entry_dir) || ($Ok = mkdir($entry_dir,0,true)))
|
|
{
|
|
if (($Ok = copy($file['tmp_name'],$fname = egw_vfs::concat($entry_dir,egw_vfs::encodePathComponent($file['name']))) &&
|
|
($stat = egw_vfs::url_stat($fname,0))) && $comment)
|
|
{
|
|
egw_vfs::proppatch(parse_url($fname,PHP_URL_PATH),array(array('name'=>'comment','val'=>$comment))); // set comment
|
|
}
|
|
}
|
|
else
|
|
{
|
|
error_log(__METHOD__."($app,$id,".array2string($file).",$comment) Can't mkdir $entry_dir!");
|
|
}
|
|
return $Ok ? -$stat['ino'] : false;
|
|
}
|
|
|
|
/**
|
|
* deletes a single or all attached files of an entry (for all there's no acl check, as the entry probably not exists any more!)
|
|
*
|
|
* @param int/string $app > 0: file_id of an attchemnt or $app/$id entry which linked to
|
|
* @param string $id='' id in app
|
|
* @param string $fname='' filename
|
|
* @return boolean|array false on error ($app or $id not found), array with path as key and boolean result of delete
|
|
*/
|
|
static function delete_attached($app,$id='',$fname='')
|
|
{
|
|
if ((int)$app > 0) // is file_id
|
|
{
|
|
$url = egw_vfs::resolve_url(sqlfs_stream_wrapper::id2path($app));
|
|
}
|
|
else
|
|
{
|
|
if (empty($app) || empty($id))
|
|
{
|
|
return False; // dont delete more than all attachments of an entry
|
|
}
|
|
$url = self::vfs_path($app,$id,$fname);
|
|
|
|
if (!$fname || !$id) // we delete the whole entry (or all entries), which probably not exist anymore
|
|
{
|
|
$current_is_root = egw_vfs::$is_root;
|
|
egw_vfs::$is_root = true;
|
|
}
|
|
}
|
|
if (self::DEBUG)
|
|
{
|
|
echo '<p>'.__METHOD__."('$app','$id','$fname') url=$url</p>\n";
|
|
}
|
|
if (($Ok = !file_exists($url) || egw_vfs::remove($url,true)) && ((int)$app > 0 || $fname))
|
|
{
|
|
// try removing the dir, in case it's empty
|
|
@egw_vfs::rmdir(egw_vfs::dirname($url));
|
|
}
|
|
if (!is_null($current_is_root))
|
|
{
|
|
egw_vfs::$is_root = $current_is_root;
|
|
}
|
|
return $Ok;
|
|
}
|
|
|
|
/**
|
|
* converts the infos vfs has about a file into a link
|
|
*
|
|
* @param string $app appname
|
|
* @param string $id id in app
|
|
* @param string $filename filename
|
|
* @return array 'kind' of link-array
|
|
*/
|
|
static function info_attached($app,$id,$filename)
|
|
{
|
|
$path = self::vfs_path($app,$id,$filename,true);
|
|
if (!($stat = egw_vfs::stat($path,STREAM_URL_STAT_QUIET)))
|
|
{
|
|
return false;
|
|
}
|
|
return self::fileinfo2link($stat,$path);
|
|
}
|
|
|
|
/**
|
|
* converts a fileinfo (row in the vfs-db-table) in a link
|
|
*
|
|
* @param array/int $fileinfo a row from the vfs-db-table (eg. returned by the vfs ls static function) or a file_id of that table
|
|
* @return array a 'kind' of link-array
|
|
*/
|
|
static function fileinfo2link($fileinfo,$url=null)
|
|
{
|
|
if (!is_array($fileinfo))
|
|
{
|
|
$url = sqlfs_stream_wrapper::id2path($fileinfo);
|
|
if (!($fileinfo = egw_vfs::url_stat($url,STREAM_URL_STAT_QUIET)))
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
list(,,$app,$id) = explode('/',$url[0] == '/' ? $url : parse_url($url,PHP_URL_PATH)); // /apps/$app/$id
|
|
|
|
return array(
|
|
'app' => self::VFS_APPNAME,
|
|
'id' => $fileinfo['name'],
|
|
'app2' => $app,
|
|
'id2' => $id,
|
|
'remark' => '', // only list_attached currently sets the remark
|
|
'owner' => $fileinfo['uid'],
|
|
'link_id' => -$fileinfo['ino'],
|
|
'lastmod' => $fileinfo['mtime'],
|
|
'size' => $fileinfo['size'],
|
|
'type' => $fileinfo['mime'],
|
|
);
|
|
}
|
|
|
|
/**
|
|
* lists all attachments to $app/$id
|
|
*
|
|
* @param string $app appname
|
|
* @param string $id id in app
|
|
* @return array with link_id => 'kind' of link-array pairs
|
|
*/
|
|
static function list_attached($app,$id)
|
|
{
|
|
$path = self::vfs_path($app,$id,'',true);
|
|
//error_log(__METHOD__."($app,$id) url=$url");
|
|
|
|
if (!($extra = self::get_registry($app,'find_extra'))) $extra = array();
|
|
|
|
$attached = array();
|
|
if (($url2stats = egw_vfs::find($path,array('need_mime'=>true,'type'=>'F')+$extra,true)))
|
|
{
|
|
$props = egw_vfs::propfind(array_keys($url2stats)); // get the comments
|
|
foreach($url2stats as $url => &$fileinfo)
|
|
{
|
|
$link = self::fileinfo2link($fileinfo,$url);
|
|
if (isset($props[$path = parse_url($url,PHP_URL_PATH)]))
|
|
{
|
|
foreach($props[$path] as $prop)
|
|
{
|
|
if ($prop['ns'] == egw_vfs::DEFAULT_PROP_NAMESPACE && $prop['name'] == 'comment')
|
|
{
|
|
$link['remark'] = $prop['val'];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
$attached[$link['link_id']] = $link;
|
|
$urls[] = $url;
|
|
}
|
|
}
|
|
return $attached;
|
|
}
|
|
|
|
/**
|
|
* reverse static function of htmlspecialchars()
|
|
*
|
|
* @param string $str string to decode
|
|
* @return string decoded string
|
|
*/
|
|
static private function decode_htmlspecialchars($str)
|
|
{
|
|
return str_replace(array('&','"','<','>'),array('&','"','<','>'),$str);
|
|
}
|
|
|
|
/**
|
|
* notify other apps about changed content in $app,$id
|
|
*
|
|
* @param string $app name of app in which the updated happend
|
|
* @param string $id id in $app of the updated entry
|
|
* @param array $data=null updated data of changed entry, as the read-method of the BO-layer would supply it
|
|
*/
|
|
static function notify_update($app,$id,$data=null)
|
|
{
|
|
foreach(self::get_links($app,$id,'!'.self::VFS_APPNAME) as $link_id => $link)
|
|
{
|
|
self::notify('update',$link['app'],$link['id'],$app,$id,$link_id,$data);
|
|
}
|
|
self::delete_cache($app,$id);
|
|
}
|
|
|
|
/**
|
|
* notify an application about a new or deleted links to own entries or updates in the content of the linked entry
|
|
*
|
|
* Please note: not all apps supply update notifications
|
|
*
|
|
* @internal
|
|
* @param string $type 'link' for new links, 'unlink' for unlinked entries, 'update' of content in linked entries
|
|
* @param string $notify_app app to notify
|
|
* @param string $notify_id id in $notify_app
|
|
* @param string $target_app name of app whos entry changed, linked or deleted
|
|
* @param string $target_id id in $target_app
|
|
* @param array $data=null data of entry in app2 (optional)
|
|
*/
|
|
static private function notify($type,$notify_app,$notify_id,$target_app,$target_id,$link_id,$data=null)
|
|
{
|
|
if ($link_id && isset(self::$app_register[$notify_app]) && isset(self::$app_register[$notify_app]['notify']))
|
|
{
|
|
ExecMethod(self::$app_register[$notify_app]['notify'],array(
|
|
'type' => $type,
|
|
'id' => $notify_id,
|
|
'target_app' => $target_app,
|
|
'target_id' => $target_id,
|
|
'link_id' => $link_id,
|
|
'data' => $data,
|
|
));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* notifies about unlinked links
|
|
*
|
|
* @internal
|
|
* @param array &$links unlinked links from the database
|
|
*/
|
|
static private function notify_unlink(&$links)
|
|
{
|
|
foreach($links as $link)
|
|
{
|
|
// we notify both sides of the link, as the unlink command NOT clearly knows which side initiated the unlink
|
|
self::notify('unlink',$link['link_app1'],$link['link_id1'],$link['link_app2'],$link['link_id2'],$link['link_id']);
|
|
self::notify('unlink',$link['link_app2'],$link['link_id2'],$link['link_app1'],$link['link_id1'],$link['link_id']);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get a reference to the cached value for $app/$id for $type
|
|
*
|
|
* @param string $app
|
|
* @param string|int $id
|
|
* @param string $type='title' 'title' or 'file_access'
|
|
* @return int|string can be null, if cache not yet set
|
|
*/
|
|
private static function &get_cache($app,$id,$type = 'title')
|
|
{
|
|
switch($type)
|
|
{
|
|
case 'title':
|
|
return self::$title_cache[$app.':'.$id];
|
|
case 'file_access':
|
|
return self::$file_access_cache[$app.':'.$id];
|
|
default:
|
|
throw new egw_exception_wrong_parameter("Unknown type '$type'!");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set title and optional file_access cache for $app,$id
|
|
*
|
|
* Allows applications to set values for title and file access, eg. in their search method,
|
|
* to not be called again. This offloads the need to cache from the app to the link class.
|
|
* If there's no caching, items get read multiple times from the database!
|
|
*
|
|
* @param string $app
|
|
* @param int|string $id
|
|
* @param string $title title string or null
|
|
* @param int $file_access=null EGW_ACL_READ, EGW_ACL_EDIT or both or'ed together
|
|
*/
|
|
public static function set_cache($app,$id,$title,$file_access=null)
|
|
{
|
|
//error_log(__METHOD__."($app,$id,$title,$file_access)");
|
|
if (!is_null($title))
|
|
{
|
|
$cache =& self::get_cache($app,$id);
|
|
$cache = $title;
|
|
}
|
|
if (!is_null($file_access))
|
|
{
|
|
$cache =& self::get_cache($app,$id,'file_access');
|
|
$cache = $file_access;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Delete the diverse caches for $app/$id
|
|
*
|
|
* @param string $app
|
|
* @param int|string $id
|
|
*/
|
|
private static function delete_cache($app,$id)
|
|
{
|
|
unset(self::$title_cache[$app.':'.$id]);
|
|
unset(self::$file_access_cache[$app.':'.$id]);
|
|
}
|
|
|
|
/**
|
|
* Check the file access perms for $app/id
|
|
*
|
|
* @ToDo $rel_path is not yet implemented, as no app use it currently
|
|
* @param string $app
|
|
* @param string|int $id id of entry
|
|
* @param int $required=EGW_ACL_READ EGW_ACL_{READ|EDIT}
|
|
* @param string $rel_path
|
|
* @return boolean
|
|
*/
|
|
static function file_access($app,$id,$required=EGW_ACL_READ,$rel_path=null)
|
|
{
|
|
$cache =& self::get_cache($app,$id,'file_access');
|
|
|
|
if (!isset($cache) || $required == EGW_ACL_EDIT && !($cache & $required))
|
|
{
|
|
if(($method = self::get_registry($app,'file_access')))
|
|
{
|
|
$cache |= ExecMethod2($method,$id,$required,$rel_path) ? $required : 0;
|
|
}
|
|
else
|
|
{
|
|
$cache |= self::title($app,$id) ? EGW_ACL_READ|EGW_ACL_EDIT : 0;
|
|
}
|
|
//error_log(__METHOD__."($app,$id,$required,$rel_path) got $cache --> ".($cache & $required ? 'true' : 'false'));
|
|
}
|
|
//else error_log(__METHOD__."($app,$id,$required,$rel_path) using cached value $cache --> ".($cache & $required ? 'true' : 'false'));
|
|
return !!($cache & $required);
|
|
}
|
|
}
|
|
egw_link::init_static();
|