X-Git-Url: http://git.osdn.net/view?p=nucleus-jp%2Fnucleus-next.git;a=blobdiff_plain;f=nucleus%2Flibs%2FMANAGER.php;h=ea9a5ad6a8f3aac653795ec3cac710125c7e92cb;hp=89ab8d540f0b2bec3f9d6bdf98641adca4953cc7;hb=e8e71808dfab704b2201e270f65eba7a4316ff18;hpb=0a44f76e2bdc50fe718a02b053dd89de129ea929
diff --git a/nucleus/libs/MANAGER.php b/nucleus/libs/MANAGER.php
index 89ab8d5..ea9a5ad 100644
--- a/nucleus/libs/MANAGER.php
+++ b/nucleus/libs/MANAGER.php
@@ -1,660 +1,786 @@
- $name)
- */
- var $cachedInfo;
-
- /**
- * The plugin subscriptionlist
- *
- * The subcription array has the following structure
- * $subscriptions[$EventName] = array containing names of plugin classes to be
- * notified when that event happens
- */
- var $subscriptions;
-
- /**
- * Returns the only instance of this class. Creates the instance if it
- * does not yet exists. Users should use this function as
- * $manager =& MANAGER::instance(); to get a reference to the object
- * instead of a copy
- */
- function &instance()
- {
- static $instance = array();
- if ( empty($instance) )
- {
- $instance[0] = new MANAGER();
- }
- return $instance[0];
- }
-
- /**
- * The constructor of this class initializes the object caches
- */
- function MANAGER()
- {
- $this->items = array();
- $this->blogs = array();
- $this->plugins = array();
- $this->karma = array();
- $this->parserPrefs = array();
- $this->cachedInfo = array();
- return;
- }
-
- /**
- * Returns the requested item object. If it is not in the cache, it will
- * first be loaded and then placed in the cache.
- * Intended use: $item =& $manager->getItem(1234)
- */
- function &getItem($itemid, $allowdraft, $allowfuture)
- {
- $item =& $this->items[$itemid];
-
- // check the draft and future rules if the item was already cached
- if ( $item )
- {
- if ((!$allowdraft) && ($item['draft']))
- return 0;
-
- $blog =& $this->getBlog(getBlogIDFromItemID($itemid));
- if ( (!$allowfuture) && ($item['timestamp'] > $blog->getCorrectTime()) )
- {
- return 0;
- }
- }
- if ( !$item )
- {
- // load class if needed
- $this->loadClass('ITEM');
- // load item object
- $item = ITEM::getitem($itemid, $allowdraft, $allowfuture);
- $this->items[$itemid] = $item;
- }
- return $item;
- }
-
- /**
- * Loads a class if it has not yet been loaded
- */
- function loadClass($name)
- {
- $this->_loadClass($name, $name . '.php');
- return;
- }
-
- /**
- * Checks if an item exists
- */
- function existsItem($id,$future,$draft)
- {
- $this->_loadClass('ITEM','ITEM.php');
- return ITEM::exists($id,$future,$draft);
- }
-
- /**
- * Checks if a category exists
- */
- function existsCategory($id)
- {
- return (quickQuery('SELECT COUNT(*) as result FROM '.sql_table('category').' WHERE catid='.intval($id)) > 0);
- }
-
- /**
- * Returns the blog object for a given blogid
- */
- function &getBlog($blogid)
- {
- $blog =& $this->blogs[$blogid];
-
- if ( !$blog )
- {
- // load class if needed
- $this->_loadClass('BLOG','BLOG.php');
- // load blog object
- $blog = new BLOG($blogid);
- $this->blogs[$blogid] =& $blog;
- }
- return $blog;
- }
-
- /**
- * Checks if a blog exists
- */
- function existsBlog($name)
- {
- $this->_loadClass('BLOG','BLOG.php');
- return BLOG::exists($name);
- }
-
- /**
- * Checks if a blog id exists
- */
- function existsBlogID($id)
- {
- $this->_loadClass('BLOG','BLOG.php');
- return BLOG::existsID($id);
- }
-
- /**
- * Returns a previously read template
- */
- function &getTemplate($templateName)
- {
- $template =& $this->templates[$templateName];
-
- if ( !$template )
- {
- $template = TEMPLATE::read($templateName);
- $this->templates[$templateName] =& $template;
- }
- return $template;
- }
-
- /**
- * Returns a KARMA object (karma votes)
- */
- function &getKarma($itemid)
- {
- $karma =& $this->karma[$itemid];
-
- if ( !$karma ) {
- // load class if needed
- $this->_loadClass('KARMA','KARMA.php');
- // create KARMA object
- $karma = new KARMA($itemid);
- $this->karma[$itemid] =& $karma;
- }
- return $karma;
- }
-
- /**
- * Returns a MEMBER object
- */
- function &getMember($memberid)
- {
- $mem =& $this->members[$memberid];
-
- if ( !$mem )
- {
- // load class if needed
- $this->_loadClass('MEMBER','MEMBER.php');
- // create MEMBER object
- $mem =& MEMBER::createFromID($memberid);
- $this->members[$memberid] =& $mem;
- }
- return $mem;
- }
-
- /**
- * Set the global parser preferences
- */
- function setParserProperty($name, $value)
- {
- $this->parserPrefs[$name] = $value;
- return;
- }
-
- /**
- * Get the global parser preferences
- */
- function getParserProperty($name)
- {
- return $this->parserPrefs[$name];
- }
-
- /**
- * A helper function to load a class
- *
- * private
- */
- function _loadClass($name, $filename)
- {
- if ( !class_exists($name) )
- {
- global $DIR_LIBS;
- include($DIR_LIBS . $filename);
- }
- return;
- }
-
- /**
- * MANAGER::_loadPlugin()
- * loading a certain plugin
- *
- * @param string $name plugin name
- * @return void
- */
- function _loadPlugin($name)
- {
- if ( !class_exists($name) )
- {
- global $DIR_PLUGINS;
-
- $fileName = $DIR_PLUGINS . $name . '.php';
-
- if ( !file_exists($fileName) )
- {
- if ( !defined('_MANAGER_PLUGINFILE_NOTFOUND') )
- {
- define('_MANAGER_PLUGINFILE_NOTFOUND', 'Plugin %s was not loaded (File not found)');
- }
- ACTIONLOG::add(WARNING, sprintf(_MANAGER_PLUGINFILE_NOTFOUND, $name));
- return 0;
- }
-
- // load plugin
- include($fileName);
-
- // check if class exists (avoid errors in eval'd code)
- if ( !class_exists($name) )
- {
- ACTIONLOG::add(WARNING, sprintf(_MANAGER_PLUGINFILE_NOCLASS, $name));
- return 0;
- }
-
- // add to plugin array
- eval('$this->plugins[$name] = new ' . $name . '();');
-
- // get plugid
- $this->plugins[$name]->setID($this->getPidFromName($name));
-
- // unload plugin if a prefix is used and the plugin cannot handle this^
- global $MYSQL_PREFIX;
- if ( ($MYSQL_PREFIX != '')
- && !$this->plugins[$name]->supportsFeature('SqlTablePrefix') )
- {
- unset($this->plugins[$name]);
- ACTIONLOG::add(WARNING, sprintf(_MANAGER_PLUGINTABLEPREFIX_NOTSUPPORT, $name));
- return 0;
- }
-
- // unload plugin if using non-mysql handler and plugin does not support it
- global $MYSQL_HANDLER;
- if ( (!in_array('mysql',$MYSQL_HANDLER))
- && !$this->plugins[$name]->supportsFeature('SqlApi') )
- {
- unset($this->plugins[$name]);
- ACTIONLOG::add(WARNING, sprintf(_MANAGER_PLUGINSQLAPI_NOTSUPPORT, $name));
- return 0;
- }
-
- // call init method
- $this->plugins[$name]->init();
- }
- return;
- }
-
- /**
- * Returns a PLUGIN object
- */
- function &getPlugin($name)
- {
- // retrieve the name of the plugin in the right capitalisation
- $name = $this->getUpperCaseName ($name);
- // get the plugin
- $plugin =& $this->plugins[$name];
-
- if ( !$plugin )
- {
- // load class if needed
- $this->_loadPlugin($name);
- $plugin =& $this->plugins[$name];
- }
- return $plugin;
- }
-
- /**
- * Checks if the given plugin IS loaded or not
- */
- function &pluginLoaded($name)
- {
- $plugin =& $this->plugins[$name];
- return $plugin;
- }
-
- function &pidLoaded($pid)
- {
- $plugin=false;
- reset($this->plugins);
- while ( list($name) = each($this->plugins) )
- {
- if ( $pid!=$this->plugins[$name]->getId() )
- {
- continue;
- }
- $plugin= & $this->plugins[$name];
- break;
- }
- return $plugin;
- }
-
- /**
- * checks if the given plugin IS installed or not
- */
- function pluginInstalled($name)
- {
- $this->_initCacheInfo('installedPlugins');
- return ($this->getPidFromName($name) != -1);
- }
-
- function pidInstalled($pid)
- {
- $this->_initCacheInfo('installedPlugins');
- return ($this->cachedInfo['installedPlugins'][$pid] != '');
- }
-
- function getPidFromName($name)
- {
- $this->_initCacheInfo('installedPlugins');
- foreach ( $this->cachedInfo['installedPlugins'] as $pid => $pfile )
- {
- if (strtolower($pfile) == strtolower($name))
- {
- return $pid;
- }
- }
- return -1;
- }
-
- /**
- * Retrieve the name of a plugin in the right capitalisation
- */
- function getUpperCaseName ($name)
- {
- $this->_initCacheInfo('installedPlugins');
- foreach ( $this->cachedInfo['installedPlugins'] as $pid => $pfile )
- {
- if ( strtolower($pfile) == strtolower($name) )
- {
- return $pfile;
- }
- }
- return -1;
- }
-
- function clearCachedInfo($what)
- {
- unset($this->cachedInfo[$what]);
- return;
- }
-
- /**
- * Loads some info on the first call only
- */
- function _initCacheInfo($what)
- {
- if ( isset($this->cachedInfo[$what]) && is_array($this->cachedInfo[$what]) )
- {
- return;
- }
- switch ($what)
- {
- // 'installedPlugins' = array ($pid => $name)
- case 'installedPlugins':
- $this->cachedInfo['installedPlugins'] = array();
- $res = sql_query('SELECT pid, pfile FROM ' . sql_table('plugin'));
- while ( $o = sql_fetch_object($res) )
- {
- $this->cachedInfo['installedPlugins'][$o->pid] = $o->pfile;
- }
- break;
- }
- return;
- }
-
- /**
- * A function to notify plugins that something has happened. Only the plugins
- * that are subscribed to the event will get notified.
- * Upon the first call, the list of subscriptions will be fetched from the
- * database. The plugins itsself will only get loaded when they are first needed
- *
- * @param $eventName
- * Name of the event (method to be called on plugins)
- * @param $data
- * Can contain any type of data, depending on the event type. Usually this is
- * an itemid, blogid, ... but it can also be an array containing multiple values
- */
- function notify($eventName, $data)
- {
- // load subscription list if needed
- if ( !is_array($this->subscriptions) )
- {
- $this->_loadSubscriptions();
- }
-
- // get listening objects
- $listeners = false;
- if ( isset($this->subscriptions[$eventName]) )
- {
- $listeners = $this->subscriptions[$eventName];
- }
-
- // notify all of them
- if ( is_array($listeners) )
- {
- foreach( $listeners as $listener )
- {
- // load class if needed
- $this->_loadPlugin($listener);
- // do notify (if method exists)
- if ( isset($this->plugins[$listener])
- && method_exists($this->plugins[$listener], 'event_' . $eventName))
- {
- call_user_func(array(&$this->plugins[$listener],'event_' . $eventName), $data);
- }
- }
- }
- return;
- }
-
- /**
- * Loads plugin subscriptions
- */
- function _loadSubscriptions()
- {
- // initialize as array
- $this->subscriptions = array();
-
- $res = sql_query('SELECT p.pfile as pfile, e.event as event FROM '.sql_table('plugin_event').' as e, '.sql_table('plugin').' as p WHERE e.pid=p.pid ORDER BY p.porder ASC');
- while ( $o = sql_fetch_object($res) )
- {
- $pluginName = $o->pfile;
- $eventName = $o->event;
- $this->subscriptions[$eventName][] = $pluginName;
- }
- return;
- }
-
- /*
- Ticket functions. These are uses by the admin area to make it impossible to simulate certain GET/POST
- requests. tickets are user specific
- */
-
- var $currentRequestTicket = '';
-
- /**
- * GET requests: Adds ticket to URL (URL should NOT be html-encoded!, ticket is added at the end)
- */
- function addTicketToUrl($url)
- {
- $ticketCode = 'ticket=' . $this->_generateTicket();
- if ( strstr($url, '?') )
- {
- $ticketCode = "{$url}&{$ticketCode}";
- }
- else
- {
- $ticketCode = "{$url}?{$ticketCode}";
- }
- return $ticketCode;
- }
-
- /**
- * POST requests: Adds ticket as hidden formvar
- */
- function addTicketHidden()
- {
- $ticket = $this->_generateTicket();
- echo '';
- return;
- }
-
- /**
- * Get a new ticket
- * (xmlHTTPRequest AutoSaveDraft uses this to refresh the ticket)
- */
- function getNewTicket()
- {
- $this->currentRequestTicket = '';
- return $this->_generateTicket();
- }
-
- /**
- * Checks the ticket that was passed along with the current request
- */
- function checkTicket()
- {
- global $member;
-
- // get ticket from request
- $ticket = requestVar('ticket');
-
- // no ticket -> don't allow
- if ( $ticket == '' )
- {
- return false;
- }
-
- // remove expired tickets first
- $this->_cleanUpExpiredTickets();
-
- // get member id
- if (!$member->isLoggedIn())
- {
- $memberId = -1;
- }
- else
- {
- $memberId = $member->getID();
- }
-
- // check if ticket is a valid one
- $query = 'SELECT COUNT(*) as result FROM ' . sql_table('tickets') . ' WHERE member=' . intval($memberId). ' and ticket=\''.sql_real_escape_string($ticket).'\'';
-
- /*
- * NOTE:
- * [in the original implementation, the checked ticket was deleted. This would lead to invalid
- * tickets when using the browsers back button and clicking another link/form
- * leaving the keys in the database is not a real problem, since they're member-specific and
- * only valid for a period of one hour]
- */
- if ( quickQuery($query) == 1 )
- {
- return true;
- }
- // not a valid ticket
- else
- {
- return false;
- }
- }
-
- /**
- * (internal method) Removes the expired tickets
- */
- function _cleanUpExpiredTickets()
- {
- // remove tickets older than 1 hour
- $oldTime = time() - 60 * 60;
- $query = 'DELETE FROM ' . sql_table('tickets'). ' WHERE ctime < \'' . date('Y-m-d H:i:s',$oldTime) .'\'';
- sql_query($query);
- return;
- }
-
- /**
- * (internal method) Generates/returns a ticket (one ticket per page request)
- */
- function _generateTicket()
- {
- if ( $this->currentRequestTicket == '' )
- {
- // generate new ticket (only one ticket will be generated per page request)
- // and store in database
- global $member;
- // get member id
- if ( !$member->isLoggedIn() )
- {
- $memberId = -1;
- }
- else
- {
- $memberId = $member->getID();
- }
-
- $ok = false;
- while ( !$ok )
- {
- // generate a random token
- srand((double)microtime()*1000000);
- $ticket = md5(uniqid(rand(), true));
-
- // add in database as non-active
- $query = 'INSERT INTO ' . sql_table('tickets') . ' (ticket, member, ctime) ';
- $query .= 'VALUES (\'' . sql_real_escape_string($ticket). '\', \'' . intval($memberId). '\', \'' . date('Y-m-d H:i:s',time()) . '\')';
- if ( sql_query($query) )
- {
- $ok = true;
- }
- }
- $this->currentRequestTicket = $ticket;
- }
- return $this->currentRequestTicket;
- }
-}
-
+ $name)
+ */
+ private $cachedInfo;
+
+ /**
+ * The plugin subscriptionlist
+ *
+ * The subcription array has the following structure
+ * $subscriptions[$EventName] = array containing names of plugin classes to be
+ * notified when that event happens
+ *
+ * NOTE: this is referred by Comments::addComment() for spamcheck API
+ * TODO: we should add new methods to get this
+ */
+ public $subscriptions;
+
+ /**
+ * Ticket functions. These are uses by the admin area to make it impossible to simulate certain GET/POST
+ * requests. tickets are user specific
+ */
+ private $currentRequestTicket = '';
+
+ /**
+ * Returns the only instance of this class. Creates the instance if it
+ * does not yet exists. Users should use this function as
+ * $manager =& Manager::instance(); to get a reference to the object
+ * instead of a copy
+ */
+ public static function &instance()
+ {
+ static $instance = array();
+ if ( empty($instance) )
+ {
+ $instance[0] = new Manager();
+ }
+ return $instance[0];
+ }
+
+ /**
+ * The constructor of this class initializes the object caches
+ */
+ public function __construct()
+ {
+ $this->items = array();
+ $this->blogs = array();
+ $this->plugins = array();
+ $this->karma = array();
+ $this->templates = array();
+ $this->skins = array();
+ $this->parserPrefs = array();
+ $this->cachedInfo = array();
+ $this->members = array();
+ return;
+ }
+
+ /**
+ * Returns the requested item object. If it is not in the cache, it will
+ * first be loaded and then placed in the cache.
+ * Intended use: $item =& $manager->getItem(1234, 0, 0)
+ */
+ public function &getItem($itemid, $allowdraft, $allowfuture)
+ {
+ /* confirm to cached */
+ if ( !array_key_exists($itemid, $this->items) )
+ {
+ $this->loadClass('ITEM');
+ $item = Item::getitem($itemid, $allowdraft, $allowfuture);
+ $this->items[$itemid] = $item;
+ }
+
+ $item =& $this->items[$itemid];
+ if ( !$allowdraft && ($item['draft']) )
+ {
+ return 0;
+ }
+
+ $blog =& $this->getBlog($item['blogid']);
+ if ( !$allowfuture && ($item['timestamp'] > $blog->getCorrectTime()) )
+ {
+ return 0;
+ }
+
+ return $item;
+ }
+
+ /**
+ * Loads a class if it has not yet been loaded
+ */
+ public function loadClass($name)
+ {
+ $this->_loadClass($name, $name . '.php');
+ return;
+ }
+
+ /**
+ * Checks if an item exists
+ */
+ public function existsItem($id,$future,$draft)
+ {
+ $this->_loadClass('ITEM','ITEM.php');
+ return Item::exists($id,$future,$draft);
+ }
+
+ /**
+ * Checks if a category exists
+ */
+ public function existsCategory($id)
+ {
+ return (DB::getValue('SELECT COUNT(*) as result FROM '.sql_table('category').' WHERE catid='.intval($id)) > 0);
+ }
+
+ /**
+ * Returns the blog object for a given blogid
+ */
+ public function &getBlog($blogid)
+ {
+ if ( !array_key_exists($blogid, $this->blogs) )
+ {
+ $this->_loadClass('BLOG','BLOG.php');
+ $this->blogs[$blogid] = new Blog($blogid);
+ }
+ return $this->blogs[$blogid];
+ }
+
+ /**
+ * Checks if a blog exists
+ */
+ public function existsBlog($name)
+ {
+ $this->_loadClass('BLOG','BLOG.php');
+ return Blog::exists($name);
+ }
+
+ /**
+ * Checks if a blog id exists
+ */
+ public function existsBlogID($id)
+ {
+ $this->_loadClass('BLOG','BLOG.php');
+ return Blog::existsID($id);
+ }
+
+ /**
+ * Returns a previously read template
+ */
+ public function &getTemplate($templateName)
+ {
+ if ( !array_key_exists($templateName, $this->templates) )
+ {
+ $this->_loadClass('Template','TEMPLATE.php');
+ $this->templates[$templateName] =& Template::read($templateName);
+ }
+ return $this->templates[$templateName];
+ }
+
+ /**
+ * Returns a KARMA object (karma votes)
+ */
+ public function &getKarma($itemid)
+ {
+ if ( !array_key_exists($itemid, $this->karma) )
+ {
+ $this->_loadClass('Karma','KARMA.php');
+ $this->karma[$itemid] = new Karma($itemid);
+ }
+ return $this->karma[$itemid];
+ }
+
+ /**
+ * Returns a MEMBER object
+ */
+ public function &getMember($memberid)
+ {
+ if ( !array_key_exists($memberid, $this->members) )
+ {
+ $this->_loadClass('Member','MEMBER.php');
+ $this->members[$memberid] =& Member::createFromID($memberid);;
+ }
+ return $this->members[$memberid];
+ }
+
+ /**
+ * Manager::getSkin()
+ *
+ * @param integer $skinid ID for skin
+ * @param string $action_class action class for handling skin variables
+ * @param string $event_identifier identifier for event name
+ * @return object instance of Skin class
+ */
+ public function &getSkin($skinid, $action_class='Actions', $event_identifier='Skin')
+ {
+ if ( !array_key_exists($skinid, $this->skins) )
+ {
+ $this->_loadClass('Skin', 'SKIN.php');
+ $this->skins[$skinid] = new Skin($skinid, $action_class, $event_identifier);
+ }
+
+ return $this->skins[$skinid];
+ }
+
+ /**
+ * Set the global parser preferences
+ */
+ public function setParserProperty($name, $value)
+ {
+ $this->parserPrefs[$name] = $value;
+ return;
+ }
+
+ /**
+ * Get the global parser preferences
+ */
+ public function getParserProperty($name)
+ {
+ return $this->parserPrefs[$name];
+ }
+
+ /**
+ * A helper function to load a class
+ *
+ * private
+ */
+ private function _loadClass($name, $filename)
+ {
+ global $DIR_LIBS;
+
+ if ( !class_exists($name) )
+ {
+ include($DIR_LIBS . $filename);
+ }
+ return;
+ }
+
+ /**
+ * Manager::_loadPlugin()
+ * loading a certain plugin
+ *
+ * @param string $name plugin name
+ * @return void
+ */
+ private function _loadPlugin($name)
+ {
+ global $DIR_PLUGINS, $MYSQL_HANDLER, $MYSQL_PREFIX;
+
+ if ( class_exists($name) )
+ {
+ return;
+ }
+
+ $fileName = "{$DIR_PLUGINS}{$name}.php";
+
+ if ( !file_exists($fileName) )
+ {
+ if ( !defined('_MANAGER_PLUGINFILE_NOTFOUND') )
+ {
+ define('_MANAGER_PLUGINFILE_NOTFOUND', 'Plugin %s was not loaded (File not found)');
+ }
+ ActionLog::add(WARNING, sprintf(_MANAGER_PLUGINFILE_NOTFOUND, $name));
+ return 0;
+ }
+
+ // load plugin
+ include($fileName);
+
+ // check if class exists (avoid errors in eval'd code)
+ if ( !class_exists($name) )
+ {
+ ActionLog::add(WARNING, sprintf(_MANAGER_PLUGINFILE_NOCLASS, $name));
+ return 0;
+ }
+
+ // add to plugin array
+ $this->plugins[$name] = new $name();
+
+ // get plugid
+ $this->plugins[$name]->setID($this->getPidFromName($name));
+
+ // unload plugin if a prefix is used and the plugin cannot handle this
+ if ( ($MYSQL_PREFIX != '')
+ && !$this->plugins[$name]->supportsFeature('SqlTablePrefix') )
+ {
+ unset($this->plugins[$name]);
+ ActionLog::add(WARNING, sprintf(_MANAGER_PLUGINTABLEPREFIX_NOTSUPPORT, $name));
+ return 0;
+ }
+
+ // unload plugin if using non-mysql handler and plugin does not support it
+ if ( (!in_array('mysql',$MYSQL_HANDLER))
+ && !$this->plugins[$name]->supportsFeature('SqlApi') )
+ {
+ unset($this->plugins[$name]);
+ ActionLog::add(WARNING, sprintf(_MANAGER_PLUGINSQLAPI_NOTSUPPORT, $name));
+ return 0;
+ }
+
+ // call init method
+ $this->plugins[$name]->init();
+
+ return;
+ }
+
+ /**
+ * Manager:getPlugin()
+ * Returns a PLUGIN object
+ *
+ * @param string $name name of plugin
+ * @return object plugin object
+ */
+ public function &getPlugin($name)
+ {
+ // retrieve the name of the plugin in the right capitalisation
+ $name = $this->getUpperCaseName ($name);
+
+ // get the plugin
+ $plugin =& $this->plugins[$name];
+
+ if ( !$plugin )
+ {
+ // load class if needed
+ $this->_loadPlugin($name);
+ $plugin =& $this->plugins[$name];
+ }
+ return $plugin;
+ }
+
+ /**
+ * Manager::pluginLoaded()
+ * Checks if the given plugin IS loaded or not
+ *
+ * @param string $name name of plugin
+ * @return object plugin object
+ */
+ public function &pluginLoaded($name)
+ {
+ $plugin =& $this->plugins[$name];
+ return $plugin;
+ }
+
+ /**
+ * Manager::pidLoaded()
+ *
+ * @param integer $pid id for plugin
+ * @return object plugin object
+ */
+ public function &pidLoaded($pid)
+ {
+ $plugin=false;
+ reset($this->plugins);
+ while ( list($name) = each($this->plugins) )
+ {
+ if ( $pid!=$this->plugins[$name]->getId() )
+ {
+ continue;
+ }
+ $plugin= & $this->plugins[$name];
+ break;
+ }
+ return $plugin;
+ }
+
+ /**
+ * Manager::pluginInstalled()
+ * checks if the given plugin IS installed or not
+ *
+ * @param string $name name of plugin
+ * @return boolean exists or not
+ */
+ public function pluginInstalled($name)
+ {
+ $this->_initCacheInfo('installedPlugins');
+ return ($this->getPidFromName($name) != -1);
+ }
+
+ /**
+ * Manager::pidInstalled()
+ * checks if the given plugin IS installed or not
+ *
+ * @param integer $pid id of plugin
+ * @return boolean exists or not
+ */
+ public function pidInstalled($pid)
+ {
+ $this->_initCacheInfo('installedPlugins');
+ return ($this->cachedInfo['installedPlugins'][$pid] != '');
+ }
+
+ /**
+ * Manager::getPidFromName()
+ *
+ * @param string $name name of plugin
+ * @return mixed id for plugin or -1 if not exists
+ */
+ public function getPidFromName($name)
+ {
+ $this->_initCacheInfo('installedPlugins');
+ foreach ( $this->cachedInfo['installedPlugins'] as $pid => $pfile )
+ {
+ if (strtolower($pfile) == strtolower($name))
+ {
+ return $pid;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * Manager::getPluginNameFromPid()
+ *
+ * @param string $pid ID for plugin
+ * @return string name of plugin
+ */
+ public function getPluginNameFromPid($pid)
+ {
+ if ( !array_key_exists($pid, $this->cachedInfo['installedPlugins']) )
+ {
+ $query = 'SELECT pfile FROM %s WHERE pid=%d;';
+ $query = sprintf($query, sql_table('plugin'), (integer) $pid);
+ return DB::getValue($query);
+ }
+ return $this->cachedInfo['installedPlugins'][$pid];
+ }
+
+ /**
+ * Manager::getUpperCaseName()
+ * Retrieve the name of a plugin in the right capitalisation
+ *
+ * @param string $name name of plugin
+ * @return string name according to UpperCamelCase
+ */
+ public function getUpperCaseName ($name)
+ {
+ $this->_initCacheInfo('installedPlugins');
+ foreach ( $this->cachedInfo['installedPlugins'] as $pid => $pfile )
+ {
+ if ( strtolower($pfile) == strtolower($name) )
+ {
+ return $pfile;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * Manager::clearCachedInfo()
+ *
+ * @param string $what
+ * @return void
+ */
+ public function clearCachedInfo($what)
+ {
+ unset($this->cachedInfo[$what]);
+ return;
+ }
+
+ /**
+ * Manager::_initCacheInfo()
+ * Loads some info on the first call only
+ *
+ * @param string $what 'installedPlugins'
+ * @return void
+ */
+ private function _initCacheInfo($what)
+ {
+ if ( array_key_exists($what, $this->cachedInfo)
+ && is_array($this->cachedInfo[$what]) )
+ {
+ return;
+ }
+
+ switch ($what)
+ {
+ // 'installedPlugins' = array ($pid => $name)
+ case 'installedPlugins':
+ $this->cachedInfo['installedPlugins'] = array();
+ $res = DB::getResult('SELECT pid, pfile FROM ' . sql_table('plugin'));
+ foreach ( $res as $row )
+ {
+ $this->cachedInfo['installedPlugins'][$row['pid']] = $row['pfile'];
+ }
+ break;
+ }
+ return;
+ }
+
+ /**
+ * Manager::notify()
+ * A function to notify plugins that something has happened. Only the plugins
+ * that are subscribed to the event will get notified.
+ * Upon the first call, the list of subscriptions will be fetched from the
+ * database. The plugins itsself will only get loaded when they are first needed
+ *
+ * @param string $eventName Name of the event (method to be called on plugins)
+ * @param string $data Can contain any type of data,
+ * depending on the event type. Usually this is an itemid, blogid, ...
+ * but it can also be an array containing multiple values
+ * @return void
+ */
+ public function notify($eventName, $data)
+ {
+ // load subscription list if needed
+ if ( !is_array($this->subscriptions) )
+ {
+ $this->_loadSubscriptions();
+ }
+
+ // get listening objects
+ $listeners = false;
+ if ( array_key_exists($eventName, $this->subscriptions)
+ && !empty($this->subscriptions[$eventName]) )
+ {
+ $listeners = $this->subscriptions[$eventName];
+ }
+
+ // notify all of them
+ if ( is_array($listeners) )
+ {
+ foreach( $listeners as $listener )
+ {
+ // load class if needed
+ $this->_loadPlugin($listener);
+
+ // do notify (if method exists)
+ if ( array_key_exists($listener, $this->plugins)
+ && !empty($this->plugins[$listener])
+ && method_exists($this->plugins[$listener], 'event_' . $eventName) )
+ {
+ call_user_func(array(&$this->plugins[$listener], 'event_' . $eventName), array(&$data));
+ }
+ }
+ }
+ return;
+ }
+
+ /**
+ * Manager::_loadSubscriptions()
+ * Loads plugin subscriptions
+ *
+ * @param void
+ * @return void
+ */
+ private function _loadSubscriptions()
+ {
+ // initialize as array
+ $this->subscriptions = array();
+
+ $query = "SELECT p.pfile as pfile, e.event as event"
+ . " FROM %s as e, %s as p"
+ . " WHERE e.pid=p.pid ORDER BY p.porder ASC";
+ $query = sprintf($query, sql_table('plugin_event'), sql_table('plugin'));
+ $res = DB::getResult($query);
+
+ foreach ( $res as $row )
+ {
+ $pluginName = $row['pfile'];
+ $eventName = $row['event'];
+ $this->subscriptions[$eventName][] = $pluginName;
+ }
+ return;
+ }
+
+ /**
+ * Manager::getNumberOfSubscribers()
+ *
+ * @param string $event name of events
+ * @return integer number of event subscriber
+ */
+ public function getNumberOfSubscribers($event)
+ {
+ $query = 'SELECT COUNT(*) as count FROM %s WHERE event=%s;';
+ $query = sprintf($query, sql_table('plugin_event'), DB::quoteValue($event));
+ return (integer) DB::getValue($query);
+ }
+
+ /**
+ * Manager::addTicketToUrl()
+ * GET requests: Adds ticket to URL (URL should NOT be html-encoded!, ticket is added at the end)
+ *
+ * @param string url string for URI
+ * @return void
+ */
+ public function addTicketToUrl($url)
+ {
+ $ticketCode = 'ticket=' . $this->_generateTicket();
+ if ( i18n::strpos($url, '?') === FALSE )
+ {
+ $ticketCode = "{$url}?{$ticketCode}";
+ }
+ else
+ {
+ $ticketCode = "{$url}&{$ticketCode}";
+ }
+ return $ticketCode;
+ }
+
+ /**
+ * Manager::addTicketHidden()
+ * POST requests: Adds ticket as hidden formvar
+ *
+ * @param void
+ * @return void
+ */
+ public function addTicketHidden()
+ {
+ $ticket = $this->_generateTicket();
+ echo '';
+ return;
+ }
+
+ /**
+ * Manager::getNewTicket()
+ * Get a new ticket
+ * (xmlHTTPRequest AutoSaveDraft uses this to refresh the ticket)
+ *
+ * @param void
+ * @return string string of ticket
+ */
+ public function getNewTicket()
+ {
+ $this->currentRequestTicket = '';
+ return $this->_generateTicket();
+ }
+
+ /**
+ * Manager::checkTicket()
+ * Checks the ticket that was passed along with the current request
+ *
+ * @param void
+ * @return boolean correct or not
+ */
+ public function checkTicket()
+ {
+ global $member;
+
+ // get ticket from request
+ $ticket = requestVar('ticket');
+
+ // no ticket -> don't allow
+ if ( $ticket == '' )
+ {
+ return FALSE;
+ }
+
+ // remove expired tickets first
+ $this->_cleanUpExpiredTickets();
+
+ // get member id
+ if (!$member->isLoggedIn())
+ {
+ $memberId = -1;
+ }
+ else
+ {
+ $memberId = $member->getID();
+ }
+
+ // check if ticket is a valid one
+ $query = sprintf('SELECT COUNT(*) as result FROM %s WHERE member=%d and ticket=%s',
+ sql_table('tickets'),
+ intval($memberId),
+ DB::quoteValue($ticket)
+ );
+
+ /*
+ * NOTE:
+ * [in the original implementation, the checked ticket was deleted. This would lead to invalid
+ * tickets when using the browsers back button and clicking another link/form
+ * leaving the keys in the database is not a real problem, since they're member-specific and
+ * only valid for a period of one hour]
+ */
+ if ( DB::getValue($query) != 1 )
+ {
+ return FALSE;
+ }
+
+ return TRUE;
+ }
+
+ /**
+ * Manager::_cleanUpExpiredTickets()
+ * Removes the expired tickets
+ *
+ * @param void
+ * @return void
+ */
+ private function _cleanUpExpiredTickets()
+ {
+ // remove tickets older than 1 hour
+ $oldTime = time() - 60 * 60;
+ $query = 'DELETE FROM %s WHERE ctime < %s';
+ $query = sprintf($query, sql_table('tickets'), DB::formatDateTime($oldTime));
+ DB::execute($query);
+ return;
+ }
+
+ /**
+ * Manager::_generateTicket()
+ * Generates/returns a ticket (one ticket per page request)
+ *
+ * @param void
+ * @return void
+ */
+ private function _generateTicket()
+ {
+ if ( $this->currentRequestTicket == '' )
+ {
+ // generate new ticket (only one ticket will be generated per page request)
+ // and store in database
+ global $member;
+ // get member id
+ if ( !$member->isLoggedIn() )
+ {
+ $memberId = -1;
+ }
+ else
+ {
+ $memberId = $member->getID();
+ }
+
+ $ok = false;
+ while ( !$ok )
+ {
+ // generate a random token
+ srand((double)microtime()*1000000);
+ $ticket = md5(uniqid(rand(), true));
+
+ // add in database as non-active
+ $query = 'INSERT INTO %s (ticket, member, ctime) VALUES (%s, %d, %s)';
+ $query = sprintf($query, sql_table('tickets'), DB::quoteValue($ticket), (integer) $memberId, DB::formatDateTime());
+
+ if ( DB::execute($query) !== FALSE )
+ {
+ $ok = true;
+ }
+ }
+ $this->currentRequestTicket = $ticket;
+ }
+ return $this->currentRequestTicket;
+ }
+}
+