githubFork/roundcubemail.git

Allways call rcube_imap::set_folder() before rcube_imap::get_message_part()

Aleksander Machniak

2014-10-28 d93019125cca783e8acfaa68467024375321e55f

commit \| author \| age
cc97ea	1	<?php
T	2
	3	/*
	4	+-----------------------------------------------------------------------+
e019f2	5	\| This file is part of the Roundcube Webmail client \|
c47813	6	\| Copyright (C) 2008-2012, The Roundcube Dev Team \|
7fe381	7	\| \|
T	8	\| Licensed under the GNU General Public License version 3 or \|
	9	\| any later version with exceptions for skins & plugins. \|
	10	\| See the README file for a full license statement. \|
cc97ea	11	\| \|
T	12	\| PURPOSE: \|
	13	\| Plugins repository \|
	14	+-----------------------------------------------------------------------+
	15	\| Author: Thomas Bruederli <roundcube@gmail.com> \|
	16	+-----------------------------------------------------------------------+
	17	*/
	18
0c2596	19	// location where plugins are loade from
c47813	20	if (!defined('RCUBE_PLUGINS_DIR')) {
AM	21	define('RCUBE_PLUGINS_DIR', RCUBE_INSTALL_PATH . 'plugins/');
	22	}
0c2596	23
cc97ea	24	/**
T	25	* The plugin loader and global API
	26	*
9ab346	27	* @package Framework
AM	28	* @subpackage PluginAPI
cc97ea	29	*/
T	30	class rcube_plugin_api
	31	{
c47813	32	static protected $instance;
413df0	33
c47813	34	public $dir;
AM	35	public $url = 'plugins/';
	36	public $task = '';
	37	public $output;
70c7df	38	public $handlers = array();
AM	39	public $allowed_prefs = array();
	40	public $allowed_session_prefs = array();
65baa0	41	public $active_plugins = array();
413df0	42
c47813	43	protected $plugins = array();
AM	44	protected $tasks = array();
	45	protected $actions = array();
	46	protected $actionmap = array();
	47	protected $objectsmap = array();
	48	protected $template_contents = array();
64d49e	49	protected $exec_stack = array();
cc97ea	50
c47813	51	// Deprecated names of hooks, will be removed after 0.5-stable release
AM	52	protected $deprecated_hooks = array(
	53	'create_user' => 'user_create',
	54	'kill_session' => 'session_destroy',
	55	'upload_attachment' => 'attachment_upload',
	56	'save_attachment' => 'attachment_save',
	57	'get_attachment' => 'attachment_get',
	58	'cleanup_attachments' => 'attachments_cleanup',
	59	'display_attachment' => 'attachment_display',
	60	'remove_attachment' => 'attachment_delete',
	61	'outgoing_message_headers' => 'message_outgoing_headers',
	62	'outgoing_message_body' => 'message_outgoing_body',
	63	'address_sources' => 'addressbooks_list',
	64	'get_address_book' => 'addressbook_get',
	65	'create_contact' => 'contact_create',
	66	'save_contact' => 'contact_update',
	67	'contact_save' => 'contact_update',
	68	'delete_contact' => 'contact_delete',
	69	'manage_folders' => 'folders_list',
	70	'list_mailboxes' => 'mailboxes_list',
	71	'save_preferences' => 'preferences_save',
	72	'user_preferences' => 'preferences_list',
	73	'list_prefs_sections' => 'preferences_sections_list',
	74	'list_identities' => 'identities_list',
	75	'create_identity' => 'identity_create',
	76	'delete_identity' => 'identity_delete',
	77	'save_identity' => 'identity_update',
	78	'identity_save' => 'identity_update',
	79	// to be removed after 0.8
	80	'imap_init' => 'storage_init',
	81	'mailboxes_list' => 'storage_folders',
	82	'imap_connect' => 'storage_connect',
	83	);
e6ce00	84
c47813	85	/**
AM	86	* This implements the 'singleton' design pattern
	87	*
	88	* @return rcube_plugin_api The one and only instance if this class
	89	*/
	90	static function get_instance()
	91	{
	92	if (!self::$instance) {
	93	self::$instance = new rcube_plugin_api();
cc97ea	94	}
8ec1b9	95
c47813	96	return self::$instance;
0501b6	97	}
8ec1b9	98
c47813	99	/**
AM	100	* Private constructor
	101	*/
	102	protected function __construct()
	103	{
	104	$this->dir = slashify(RCUBE_PLUGINS_DIR);
	105	}
8ec1b9	106
c47813	107	/**
AM	108	* Initialize plugin engine
	109	*
	110	* This has to be done after rcmail::load_gui() or rcmail::json_init()
	111	* was called because plugins need to have access to rcmail->output
	112	*
	113	* @param object rcube Instance of the rcube base class
	114	* @param string Current application task (used for conditional plugin loading)
	115	*/
	116	public function init($app, $task = '')
	117	{
	118	$this->task = $task;
	119	$this->output = $app->output;
0501b6	120
c47813	121	// register an internal hook
AM	122	$this->register_hook('template_container', array($this, 'template_container_hook'));
0501b6	123
c47813	124	// maybe also register a shudown function which triggers
AM	125	// shutdown functions of all plugin objects
	126	}
	127
	128	/**
	129	* Load and init all enabled plugins
	130	*
	131	* This has to be done after rcmail::load_gui() or rcmail::json_init()
	132	* was called because plugins need to have access to rcmail->output
	133	*
	134	* @param array List of configured plugins to load
	135	* @param array List of plugins required by the application
	136	*/
	137	public function load_plugins($plugins_enabled, $required_plugins = array())
	138	{
	139	foreach ($plugins_enabled as $plugin_name) {
	140	$this->load_plugin($plugin_name);
0501b6	141	}
c47813	142
AM	143	// check existance of all required core plugins
	144	foreach ($required_plugins as $plugin_name) {
	145	$loaded = false;
	146	foreach ($this->plugins as $plugin) {
	147	if ($plugin instanceof $plugin_name) {
	148	$loaded = true;
	149	break;
	150	}
	151	}
	152
	153	// load required core plugin if no derivate was found
	154	if (!$loaded) {
	155	$loaded = $this->load_plugin($plugin_name);
	156	}
	157
	158	// trigger fatal error if still not loaded
	159	if (!$loaded) {
	160	rcube::raise_error(array(
	161	'code' => 520, 'type' => 'php',
	162	'file' => __FILE__, 'line' => __LINE__,
	163	'message' => "Requried plugin $plugin_name was not loaded"), true, true);
	164	}
	165	}
0501b6	166	}
8ec1b9	167
c47813	168	/**
AM	169	* Load the specified plugin
	170	*
	171	* @param string Plugin name
cf3195	172	* @param boolean Force loading of the plugin even if it doesn't match the filter
0b799b	173	* @param boolean Require loading of the plugin, error if it doesn't exist
c47813	174	*
AM	175	* @return boolean True on success, false if not loaded or failure
	176	*/
0b799b	177	public function load_plugin($plugin_name, $force = false, $require = true)
c47813	178	{
AM	179	static $plugins_dir;
8ec1b9	180
c47813	181	if (!$plugins_dir) {
AM	182	$dir = dir($this->dir);
	183	$plugins_dir = unslashify($dir->path);
	184	}
8ec1b9	185
c47813	186	// plugin already loaded
509a6b	187	if ($this->plugins[$plugin_name]) {
c47813	188	return true;
AM	189	}
8ec1b9	190
29c24e	191	$fn = "$plugins_dir/$plugin_name/$plugin_name.php";
479af9	192
65baa0	193	if (is_readable($fn)) {
509a6b	194	if (!class_exists($plugin_name, false)) {
TB	195	include $fn;
	196	}
8ec1b9	197
c47813	198	// instantiate class if exists
AM	199	if (class_exists($plugin_name, false)) {
	200	$plugin = new $plugin_name($this);
65baa0	201	$this->active_plugins[] = $plugin_name;
TB	202
c47813	203	// check inheritance...
AM	204	if (is_subclass_of($plugin, 'rcube_plugin')) {
	205	// ... task, request type and framed mode
fa635d	206	if (($force \|\| !$plugin->task \|\| preg_match('/^('.$plugin->task.')$/i', $this->task))
c47813	207	&& (!$plugin->noajax \|\| (is_object($this->output) && $this->output->type == 'html'))
AM	208	&& (!$plugin->noframe \|\| empty($_REQUEST['_framed']))
	209	) {
	210	$plugin->init();
	211	$this->plugins[$plugin_name] = $plugin;
	212	}
648fcf	213
AM	214	if (!empty($plugin->allowed_prefs)) {
	215	$this->allowed_prefs = array_merge($this->allowed_prefs, $plugin->allowed_prefs);
	216	}
	217
c47813	218	return true;
AM	219	}
	220	}
	221	else {
	222	rcube::raise_error(array('code' => 520, 'type' => 'php',
	223	'file' => __FILE__, 'line' => __LINE__,
	224	'message' => "No plugin class $plugin_name found in $fn"),
	225	true, false);
	226	}
	227	}
0b799b	228	elseif ($require) {
c47813	229	rcube::raise_error(array('code' => 520, 'type' => 'php',
AM	230	'file' => __FILE__, 'line' => __LINE__,
	231	'message' => "Failed to load plugin file $fn"), true, false);
	232	}
463a03	233
c47813	234	return false;
cc97ea	235	}
8ec1b9	236
c47813	237	/**
378d6c	238	* Get information about a specific plugin.
TB	239	* This is either provided my a plugin's info() method or extracted from a package.xml or a composer.json file
	240	*
	241	* @param string Plugin name
	242	* @return array Meta information about a plugin or False if plugin was not found
	243	*/
	244	public function get_info($plugin_name)
	245	{
	246	static $composer_lock, $license_uris = array(
	247	'Apache' => 'http://www.apache.org/licenses/LICENSE-2.0.html',
	248	'Apache-2' => 'http://www.apache.org/licenses/LICENSE-2.0.html',
	249	'Apache-1' => 'http://www.apache.org/licenses/LICENSE-1.0',
	250	'Apache-1.1' => 'http://www.apache.org/licenses/LICENSE-1.1',
	251	'GPL' => 'http://www.gnu.org/licenses/gpl.html',
	252	'GPLv2' => 'http://www.gnu.org/licenses/gpl-2.0.html',
	253	'GPL-2.0' => 'http://www.gnu.org/licenses/gpl-2.0.html',
	254	'GPLv3' => 'http://www.gnu.org/licenses/gpl-3.0.html',
	255	'GPL-3.0' => 'http://www.gnu.org/licenses/gpl-3.0.html',
	256	'GPL-3.0+' => 'http://www.gnu.org/licenses/gpl.html',
	257	'GPL-2.0+' => 'http://www.gnu.org/licenses/gpl.html',
65baa0	258	'AGPLv3' => 'http://www.gnu.org/licenses/agpl.html',
TB	259	'AGPLv3+' => 'http://www.gnu.org/licenses/agpl.html',
	260	'AGPL-3.0' => 'http://www.gnu.org/licenses/agpl.html',
378d6c	261	'LGPL' => 'http://www.gnu.org/licenses/lgpl.html',
TB	262	'LGPLv2' => 'http://www.gnu.org/licenses/lgpl-2.0.html',
	263	'LGPLv2.1' => 'http://www.gnu.org/licenses/lgpl-2.1.html',
	264	'LGPLv3' => 'http://www.gnu.org/licenses/lgpl.html',
	265	'LGPL-2.0' => 'http://www.gnu.org/licenses/lgpl-2.0.html',
	266	'LGPL-2.1' => 'http://www.gnu.org/licenses/lgpl-2.1.html',
	267	'LGPL-3.0' => 'http://www.gnu.org/licenses/lgpl.html',
	268	'LGPL-3.0+' => 'http://www.gnu.org/licenses/lgpl.html',
	269	'BSD' => 'http://opensource.org/licenses/bsd-license.html',
	270	'BSD-2-Clause' => 'http://opensource.org/licenses/BSD-2-Clause',
	271	'BSD-3-Clause' => 'http://opensource.org/licenses/BSD-3-Clause',
	272	'FreeBSD' => 'http://opensource.org/licenses/BSD-2-Clause',
	273	'MIT' => 'http://www.opensource.org/licenses/mit-license.php',
	274	'PHP' => 'http://opensource.org/licenses/PHP-3.0',
	275	'PHP-3' => 'http://www.php.net/license/3_01.txt',
	276	'PHP-3.0' => 'http://www.php.net/license/3_0.txt',
	277	'PHP-3.01' => 'http://www.php.net/license/3_01.txt',
	278	);
	279
	280	$dir = dir($this->dir);
29c24e	281	$fn = unslashify($dir->path) . "/$plugin_name/$plugin_name.php";
378d6c	282	$info = false;
TB	283
65baa0	284	if (!class_exists($plugin_name, false)) {
TB	285	if (is_readable($fn))
	286	include($fn);
	287	else
	288	return false;
	289	}
378d6c	290
TB	291	if (class_exists($plugin_name))
	292	$info = $plugin_name::info();
	293
	294	// fall back to composer.json file
	295	if (!$info) {
	296	$composer = INSTALL_PATH . "/plugins/$plugin_name/composer.json";
65baa0	297	if (is_readable($composer) && ($json = @json_decode(file_get_contents($composer), true))) {
378d6c	298	list($info['vendor'], $info['name']) = explode('/', $json['name']);
ce6050	299	$info['version'] = $json['version'];
378d6c	300	$info['license'] = $json['license'];
65baa0	301	$info['uri'] = $json['homepage'];
TB	302	$info['require'] = array_filter(array_keys((array)$json['require']), function($pname) {
	303	if (strpos($pname, '/') == false)
	304	return false;
	305	list($vendor, $name) = explode('/', $pname);
	306	return !($name == 'plugin-installer' \|\| $vendor == 'pear-pear');
	307	});
378d6c	308	}
TB	309
	310	// read local composer.lock file (once)
	311	if (!isset($composer_lock)) {
	312	$composer_lock = @json_decode(@file_get_contents(INSTALL_PATH . "/composer.lock"), true);
	313	if ($composer_lock['packages']) {
	314	foreach ($composer_lock['packages'] as $i => $package) {
	315	$composer_lock['installed'][$package['name']] = $package;
	316	}
	317	}
	318	}
	319
	320	// load additional information from local composer.lock file
	321	if ($lock = $composer_lock['installed'][$json['name']]) {
	322	$info['version'] = $lock['version'];
	323	$info['uri'] = $lock['homepage'] ? $lock['homepage'] : $lock['source']['uri'];
	324	$info['src_uri'] = $lock['dist']['uri'] ? $lock['dist']['uri'] : $lock['source']['uri'];
	325	}
	326	}
	327
	328	// fall back to package.xml file
	329	if (!$info) {
	330	$package = INSTALL_PATH . "/plugins/$plugin_name/package.xml";
65baa0	331	if (is_readable($package) && ($file = file_get_contents($package))) {
378d6c	332	$doc = new DOMDocument();
TB	333	$doc->loadXML($file);
	334	$xpath = new DOMXPath($doc);
	335	$xpath->registerNamespace('rc', "http://pear.php.net/dtd/package-2.0");
	336
	337	// XPaths of plugin metadata elements
	338	$metadata = array(
	339	'name' => 'string(//rc:package/rc:name)',
	340	'version' => 'string(//rc:package/rc:version/rc:release)',
	341	'license' => 'string(//rc:package/rc:license)',
	342	'license_uri' => 'string(//rc:package/rc:license/@uri)',
	343	'src_uri' => 'string(//rc:package/rc:srcuri)',
	344	'uri' => 'string(//rc:package/rc:uri)',
	345	);
	346
	347	foreach ($metadata as $key => $path) {
	348	$info[$key] = $xpath->evaluate($path);
	349	}
	350
	351	// dependent required plugins (can be used, but not included in config)
	352	$deps = $xpath->evaluate('//rc:package/rc:dependencies/rc:required/rc:package/rc:name');
	353	for ($i = 0; $i < $deps->length; $i++) {
	354	$dn = $deps->item($i)->nodeValue;
65baa0	355	$info['require'][] = $dn;
378d6c	356	}
TB	357	}
	358	}
	359
65baa0	360	// At least provide the name
TB	361	if (!$info && class_exists($plugin_name)) {
	362	$info = array('name' => $plugin_name, 'version' => '--');
	363	}
	364	else if ($info['license'] && empty($info['license_uri']) && ($license_uri = $license_uris[$info['license']])) {
	365	$info['license_uri'] = $license_uri;
	366	}
	367
378d6c	368	return $info;
TB	369	}
	370
	371	/**
c47813	372	* Allows a plugin object to register a callback for a certain hook
AM	373	*
	374	* @param string $hook Hook name
	375	* @param mixed $callback String with global function name or array($obj, 'methodname')
	376	*/
	377	public function register_hook($hook, $callback)
	378	{
	379	if (is_callable($callback)) {
	380	if (isset($this->deprecated_hooks[$hook])) {
	381	rcube::raise_error(array('code' => 522, 'type' => 'php',
	382	'file' => __FILE__, 'line' => __LINE__,
	383	'message' => "Deprecated hook name. "
	384	. $hook . ' -> ' . $this->deprecated_hooks[$hook]), true, false);
	385	$hook = $this->deprecated_hooks[$hook];
	386	}
	387	$this->handlers[$hook][] = $callback;
	388	}
	389	else {
	390	rcube::raise_error(array('code' => 521, 'type' => 'php',
	391	'file' => __FILE__, 'line' => __LINE__,
	392	'message' => "Invalid callback function for $hook"), true, false);
	393	}
05a631	394	}
8ec1b9	395
c47813	396	/**
AM	397	* Allow a plugin object to unregister a callback.
	398	*
	399	* @param string $hook Hook name
	400	* @param mixed $callback String with global function name or array($obj, 'methodname')
	401	*/
	402	public function unregister_hook($hook, $callback)
	403	{
	404	$callback_id = array_search($callback, $this->handlers[$hook]);
	405	if ($callback_id !== false) {
	406	unset($this->handlers[$hook][$callback_id]);
	407	}
cc97ea	408	}
T	409
c47813	410	/**
AM	411	* Triggers a plugin hook.
	412	* This is called from the application and executes all registered handlers
	413	*
	414	* @param string $hook Hook name
	415	* @param array $args Named arguments (key->value pairs)
	416	*
	417	* @return array The (probably) altered hook arguments
	418	*/
	419	public function exec_hook($hook, $args = array())
	420	{
	421	if (!is_array($args)) {
	422	$args = array('arg' => $args);
	423	}
8ec1b9	424
64d49e	425	// TODO: avoid recusion by checking in_array($hook, $this->exec_stack) ?
TB	426
c47813	427	$args += array('abort' => false);
64d49e	428	array_push($this->exec_stack, $hook);
c47813	429
AM	430	foreach ((array)$this->handlers[$hook] as $callback) {
	431	$ret = call_user_func($callback, $args);
	432	if ($ret && is_array($ret)) {
	433	$args = $ret + $args;
	434	}
	435
c1bc8f	436	if ($args['break']) {
c47813	437	break;
AM	438	}
	439	}
	440
64d49e	441	array_pop($this->exec_stack);
c47813	442	return $args;
cc97ea	443	}
8ec1b9	444
c47813	445	/**
AM	446	* Let a plugin register a handler for a specific request
	447	*
	448	* @param string $action Action name (_task=mail&_action=plugin.foo)
	449	* @param string $owner Plugin name that registers this action
	450	* @param mixed $callback Callback: string with global function name or array($obj, 'methodname')
	451	* @param string $task Task name registered by this plugin
	452	*/
	453	public function register_action($action, $owner, $callback, $task = null)
	454	{
	455	// check action name
	456	if ($task)
	457	$action = $task.'.'.$action;
	458	else if (strpos($action, 'plugin.') !== 0)
	459	$action = 'plugin.'.$action;
8ec1b9	460
c47813	461	// can register action only if it's not taken or registered by myself
AM	462	if (!isset($this->actionmap[$action]) \|\| $this->actionmap[$action] == $owner) {
	463	$this->actions[$action] = $callback;
	464	$this->actionmap[$action] = $owner;
	465	}
	466	else {
	467	rcube::raise_error(array('code' => 523, 'type' => 'php',
	468	'file' => __FILE__, 'line' => __LINE__,
	469	'message' => "Cannot register action $action;"
	470	." already taken by another plugin"), true, false);
	471	}
	472	}
8ec1b9	473
c47813	474	/**
AM	475	* This method handles requests like _task=mail&_action=plugin.foo
	476	* It executes the callback function that was registered with the given action.
	477	*
	478	* @param string $action Action name
	479	*/
	480	public function exec_action($action)
	481	{
	482	if (isset($this->actions[$action])) {
	483	call_user_func($this->actions[$action]);
	484	}
	485	else if (rcube::get_instance()->action != 'refresh') {
	486	rcube::raise_error(array('code' => 524, 'type' => 'php',
	487	'file' => __FILE__, 'line' => __LINE__,
	488	'message' => "No handler found for action $action"), true, true);
	489	}
	490	}
8ec1b9	491
c47813	492	/**
AM	493	* Register a handler function for template objects
	494	*
	495	* @param string $name Object name
	496	* @param string $owner Plugin name that registers this action
	497	* @param mixed $callback Callback: string with global function name or array($obj, 'methodname')
	498	*/
	499	public function register_handler($name, $owner, $callback)
	500	{
	501	// check name
	502	if (strpos($name, 'plugin.') !== 0) {
	503	$name = 'plugin.' . $name;
	504	}
8703b0	505
c47813	506	// can register handler only if it's not taken or registered by myself
AM	507	if (is_object($this->output)
	508	&& (!isset($this->objectsmap[$name]) \|\| $this->objectsmap[$name] == $owner)
	509	) {
	510	$this->output->add_handler($name, $callback);
	511	$this->objectsmap[$name] = $owner;
	512	}
	513	else {
	514	rcube::raise_error(array('code' => 525, 'type' => 'php',
	515	'file' => __FILE__, 'line' => __LINE__,
	516	'message' => "Cannot register template handler $name;"
	517	." already taken by another plugin or no output object available"), true, false);
	518	}
	519	}
8703b0	520
c47813	521	/**
AM	522	* Register this plugin to be responsible for a specific task
	523	*
8b7716	524	* @param string $task Task name (only characters [a-z0-9_-] are allowed)
c47813	525	* @param string $owner Plugin name that registers this action
AM	526	*/
	527	public function register_task($task, $owner)
	528	{
	529	// tasks are irrelevant in framework mode
	530	if (!class_exists('rcmail', false)) {
	531	return true;
	532	}
8ec1b9	533
8b7716	534	if ($task != asciiwords($task, true)) {
c47813	535	rcube::raise_error(array('code' => 526, 'type' => 'php',
AM	536	'file' => __FILE__, 'line' => __LINE__,
	537	'message' => "Invalid task name: $task."
	538	." Only characters [a-z0-9_.-] are allowed"), true, false);
	539	}
	540	else if (in_array($task, rcmail::$main_tasks)) {
	541	rcube::raise_error(array('code' => 526, 'type' => 'php',
	542	'file' => __FILE__, 'line' => __LINE__,
	543	'message' => "Cannot register taks $task;"
	544	." already taken by another plugin or the application itself"), true, false);
	545	}
	546	else {
	547	$this->tasks[$task] = $owner;
	548	rcmail::$main_tasks[] = $task;
	549	return true;
	550	}
8ec1b9	551
c47813	552	return false;
AM	553	}
cc97ea	554
c47813	555	/**
AM	556	* Checks whether the given task is registered by a plugin
	557	*
	558	* @param string $task Task name
	559	*
	560	* @return boolean True if registered, otherwise false
	561	*/
	562	public function is_plugin_task($task)
	563	{
	564	return $this->tasks[$task] ? true : false;
	565	}
	566
	567	/**
	568	* Check if a plugin hook is currently processing.
	569	* Mainly used to prevent loops and recursion.
	570	*
	571	* @param string $hook Hook to check (optional)
	572	*
	573	* @return boolean True if any/the given hook is currently processed, otherwise false
	574	*/
	575	public function is_processing($hook = null)
	576	{
64d49e	577	return count($this->exec_stack) > 0 && (!$hook \|\| in_array($hook, $this->exec_stack));
c47813	578	}
AM	579
	580	/**
	581	* Include a plugin script file in the current HTML page
	582	*
	583	* @param string $fn Path to script
	584	*/
	585	public function include_script($fn)
	586	{
	587	if (is_object($this->output) && $this->output->type == 'html') {
	588	$src = $this->resource_url($fn);
	589	$this->output->add_header(html::tag('script',
	590	array('type' => "text/javascript", 'src' => $src)));
	591	}
	592	}
	593
	594	/**
	595	* Include a plugin stylesheet in the current HTML page
	596	*
	597	* @param string $fn Path to stylesheet
	598	*/
	599	public function include_stylesheet($fn)
	600	{
	601	if (is_object($this->output) && $this->output->type == 'html') {
	602	$src = $this->resource_url($fn);
	603	$this->output->include_css($src);
	604	}
	605	}
	606
	607	/**
	608	* Save the given HTML content to be added to a template container
	609	*
	610	* @param string $html HTML content
	611	* @param string $container Template container identifier
	612	*/
	613	public function add_content($html, $container)
	614	{
	615	$this->template_contents[$container] .= $html . "\n";
	616	}
	617
	618	/**
	619	* Returns list of loaded plugins names
	620	*
	621	* @return array List of plugin names
	622	*/
	623	public function loaded_plugins()
	624	{
	625	return array_keys($this->plugins);
	626	}
	627
	628	/**
a1d042	629	* Returns loaded plugin
AM	630	*
	631	* @return rcube_plugin Plugin instance
	632	*/
	633	public function get_plugin($name)
	634	{
	635	return $this->plugins[$name];
	636	}
	637
	638	/**
c47813	639	* Callback for template_container hooks
AM	640	*
	641	* @param array $attrib
	642	* @return array
	643	*/
	644	protected function template_container_hook($attrib)
	645	{
	646	$container = $attrib['name'];
	647	return array('content' => $attrib['content'] . $this->template_contents[$container]);
	648	}
	649
	650	/**
	651	* Make the given file name link into the plugins directory
	652	*
	653	* @param string $fn Filename
	654	* @return string
	655	*/
	656	protected function resource_url($fn)
	657	{
	658	if ($fn[0] != '/' && !preg_match('\|^https?://\|i', $fn))
	659	return $this->url . $fn;
	660	else
	661	return $fn;
	662	}
cc97ea	663	}