From 2965a981b7ec22866fbdf2d567d87e2d068d3617 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Fri, 31 Jul 2015 16:04:08 -0400
Subject: [PATCH] Allow to search and import missing PGP pubkeys from keyservers using Publickey.js
---
program/lib/Roundcube/rcube_plugin_api.php | 1022 +++++++++++++++++++++++++++++++++-----------------------
1 files changed, 599 insertions(+), 423 deletions(-)
diff --git a/program/lib/Roundcube/rcube_plugin_api.php b/program/lib/Roundcube/rcube_plugin_api.php
index a8f83a2..ce727e2 100644
--- a/program/lib/Roundcube/rcube_plugin_api.php
+++ b/program/lib/Roundcube/rcube_plugin_api.php
@@ -2,10 +2,8 @@
/*
+-----------------------------------------------------------------------+
- | program/include/rcube_plugin_api.php |
- | |
| This file is part of the Roundcube Webmail client |
- | Copyright (C) 2008-2011, The Roundcube Dev Team |
+ | Copyright (C) 2008-2012, The Roundcube Dev Team |
| |
| Licensed under the GNU General Public License version 3 or |
| any later version with exceptions for skins & plugins. |
@@ -13,16 +11,15 @@
| |
| PURPOSE: |
| Plugins repository |
- | |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
*/
// location where plugins are loade from
-if (!defined('RCUBE_PLUGINS_DIR'))
- define('RCUBE_PLUGINS_DIR', RCUBE_INSTALL_PATH . 'plugins/');
-
+if (!defined('RCUBE_PLUGINS_DIR')) {
+ define('RCUBE_PLUGINS_DIR', RCUBE_INSTALL_PATH . 'plugins/');
+}
/**
* The plugin loader and global API
@@ -32,464 +29,643 @@
*/
class rcube_plugin_api
{
- static protected $instance;
+ static protected $instance;
- public $dir;
- public $url = 'plugins/';
- public $task = '';
- public $output;
+ public $dir;
+ public $url = 'plugins/';
+ public $task = '';
+ public $initialized = false;
- public $handlers = array();
- protected $plugins = array();
- protected $tasks = array();
- protected $actions = array();
- protected $actionmap = array();
- protected $objectsmap = array();
- protected $template_contents = array();
- protected $active_hook = false;
+ public $output;
+ public $handlers = array();
+ public $allowed_prefs = array();
+ public $allowed_session_prefs = array();
+ public $active_plugins = array();
- // Deprecated names of hooks, will be removed after 0.5-stable release
- protected $deprecated_hooks = array(
- 'create_user' => 'user_create',
- 'kill_session' => 'session_destroy',
- 'upload_attachment' => 'attachment_upload',
- 'save_attachment' => 'attachment_save',
- 'get_attachment' => 'attachment_get',
- 'cleanup_attachments' => 'attachments_cleanup',
- 'display_attachment' => 'attachment_display',
- 'remove_attachment' => 'attachment_delete',
- 'outgoing_message_headers' => 'message_outgoing_headers',
- 'outgoing_message_body' => 'message_outgoing_body',
- 'address_sources' => 'addressbooks_list',
- 'get_address_book' => 'addressbook_get',
- 'create_contact' => 'contact_create',
- 'save_contact' => 'contact_update',
- 'contact_save' => 'contact_update',
- 'delete_contact' => 'contact_delete',
- 'manage_folders' => 'folders_list',
- 'list_mailboxes' => 'mailboxes_list',
- 'save_preferences' => 'preferences_save',
- 'user_preferences' => 'preferences_list',
- 'list_prefs_sections' => 'preferences_sections_list',
- 'list_identities' => 'identities_list',
- 'create_identity' => 'identity_create',
- 'delete_identity' => 'identity_delete',
- 'save_identity' => 'identity_update',
- 'identity_save' => 'identity_update',
- // to be removed after 0.8
- 'imap_init' => 'storage_init',
- 'mailboxes_list' => 'storage_folders',
- );
-
- /**
- * This implements the 'singleton' design pattern
- *
- * @return rcube_plugin_api The one and only instance if this class
- */
- static function get_instance()
- {
- if (!self::$instance) {
- self::$instance = new rcube_plugin_api();
- }
-
- return self::$instance;
- }
+ protected $plugins = array();
+ protected $plugins_initialized = array();
+ protected $tasks = array();
+ protected $actions = array();
+ protected $actionmap = array();
+ protected $objectsmap = array();
+ protected $template_contents = array();
+ protected $exec_stack = array();
+ protected $deprecated_hooks = array();
- /**
- * Private constructor
- */
- protected function __construct()
- {
- $this->dir = slashify(RCUBE_PLUGINS_DIR);
- }
-
-
- /**
- * Initialize plugin engine
- *
- * This has to be done after rcmail::load_gui() or rcmail::json_init()
- * was called because plugins need to have access to rcmail->output
- *
- * @param object rcube Instance of the rcube base class
- * @param string Current application task (used for conditional plugin loading)
- */
- public function init($app, $task = '')
- {
- $this->task = $task;
- $this->output = $app->output;
-
- // register an internal hook
- $this->register_hook('template_container', array($this, 'template_container_hook'));
-
- // maybe also register a shudown function which triggers shutdown functions of all plugin objects
- }
-
-
- /**
- * Load and init all enabled plugins
- *
- * This has to be done after rcmail::load_gui() or rcmail::json_init()
- * was called because plugins need to have access to rcmail->output
- *
- * @param array List of configured plugins to load
- * @param array List of plugins required by the application
- */
- public function load_plugins($plugins_enabled, $required_plugins = array())
- {
- foreach ($plugins_enabled as $plugin_name) {
- $this->load_plugin($plugin_name);
- }
-
- // check existance of all required core plugins
- foreach ($required_plugins as $plugin_name) {
- $loaded = false;
- foreach ($this->plugins as $plugin) {
- if ($plugin instanceof $plugin_name) {
- $loaded = true;
- break;
+ /**
+ * This implements the 'singleton' design pattern
+ *
+ * @return rcube_plugin_api The one and only instance if this class
+ */
+ static function get_instance()
+ {
+ if (!self::$instance) {
+ self::$instance = new rcube_plugin_api();
}
- }
- // load required core plugin if no derivate was found
- if (!$loaded)
- $loaded = $this->load_plugin($plugin_name);
-
- // trigger fatal error if still not loaded
- if (!$loaded) {
- rcube::raise_error(array('code' => 520, 'type' => 'php',
- 'file' => __FILE__, 'line' => __LINE__,
- 'message' => "Requried plugin $plugin_name was not loaded"), true, true);
- }
- }
- }
-
- /**
- * Load the specified plugin
- *
- * @param string Plugin name
- * @return boolean True on success, false if not loaded or failure
- */
- public function load_plugin($plugin_name)
- {
- static $plugins_dir;
-
- if (!$plugins_dir) {
- $dir = dir($this->dir);
- $plugins_dir = unslashify($dir->path);
+ return self::$instance;
}
- // plugin already loaded
- if ($this->plugins[$plugin_name] || class_exists($plugin_name, false))
- return true;
+ /**
+ * Private constructor
+ */
+ protected function __construct()
+ {
+ $this->dir = slashify(RCUBE_PLUGINS_DIR);
+ }
- $fn = $plugins_dir . DIRECTORY_SEPARATOR . $plugin_name . DIRECTORY_SEPARATOR . $plugin_name . '.php';
+ /**
+ * Initialize plugin engine
+ *
+ * This has to be done after rcmail::load_gui() or rcmail::json_init()
+ * was called because plugins need to have access to rcmail->output
+ *
+ * @param object rcube Instance of the rcube base class
+ * @param string Current application task (used for conditional plugin loading)
+ */
+ public function init($app, $task = '')
+ {
+ $this->task = $task;
+ $this->output = $app->output;
+ // register an internal hook
+ $this->register_hook('template_container', array($this, 'template_container_hook'));
+ // maybe also register a shudown function which triggers
+ // shutdown functions of all plugin objects
- if (file_exists($fn)) {
- include($fn);
-
- // instantiate class if exists
- if (class_exists($plugin_name, false)) {
- $plugin = new $plugin_name($this);
- // check inheritance...
- if (is_subclass_of($plugin, 'rcube_plugin')) {
- // ... task, request type and framed mode
- if ((!$plugin->task || preg_match('/^('.$plugin->task.')$/i', $this->task))
- && (!$plugin->noajax || (is_object($this->output) && $this->output->type == 'html'))
- && (!$plugin->noframe || empty($_REQUEST['_framed']))
- ) {
- $plugin->init();
- $this->plugins[$plugin_name] = $plugin;
- }
- return true;
+ foreach ($this->plugins as $plugin) {
+ // ... task, request type and framed mode
+ if (!$this->plugins_initialized[$plugin_name] && !$this->filter($plugin)) {
+ $plugin->init();
+ $this->plugins_initialized[$plugin->ID] = $plugin;
+ }
}
- }
- else {
- rcube::raise_error(array('code' => 520, 'type' => 'php',
- 'file' => __FILE__, 'line' => __LINE__,
- 'message' => "No plugin class $plugin_name found in $fn"), true, false);
- }
- }
- else {
- rcube::raise_error(array('code' => 520, 'type' => 'php',
- 'file' => __FILE__, 'line' => __LINE__,
- 'message' => "Failed to load plugin file $fn"), true, false);
+
+ // we have finished initializing all plugins
+ $this->initialized = true;
}
- return false;
- }
+ /**
+ * Load and init all enabled plugins
+ *
+ * This has to be done after rcmail::load_gui() or rcmail::json_init()
+ * was called because plugins need to have access to rcmail->output
+ *
+ * @param array List of configured plugins to load
+ * @param array List of plugins required by the application
+ */
+ public function load_plugins($plugins_enabled, $required_plugins = array())
+ {
+ foreach ($plugins_enabled as $plugin_name) {
+ $this->load_plugin($plugin_name);
+ }
+ // check existance of all required core plugins
+ foreach ($required_plugins as $plugin_name) {
+ $loaded = false;
+ foreach ($this->plugins as $plugin) {
+ if ($plugin instanceof $plugin_name) {
+ $loaded = true;
+ break;
+ }
+ }
- /**
- * Allows a plugin object to register a callback for a certain hook
- *
- * @param string $hook Hook name
- * @param mixed $callback String with global function name or array($obj, 'methodname')
- */
- public function register_hook($hook, $callback)
- {
- if (is_callable($callback)) {
- if (isset($this->deprecated_hooks[$hook])) {
- rcube::raise_error(array('code' => 522, 'type' => 'php',
- 'file' => __FILE__, 'line' => __LINE__,
- 'message' => "Deprecated hook name. ".$hook.' -> '.$this->deprecated_hooks[$hook]), true, false);
- $hook = $this->deprecated_hooks[$hook];
- }
- $this->handlers[$hook][] = $callback;
- }
- else
- rcube::raise_error(array('code' => 521, 'type' => 'php',
- 'file' => __FILE__, 'line' => __LINE__,
- 'message' => "Invalid callback function for $hook"), true, false);
- }
+ // load required core plugin if no derivate was found
+ if (!$loaded) {
+ $loaded = $this->load_plugin($plugin_name);
+ }
- /**
- * Allow a plugin object to unregister a callback.
- *
- * @param string $hook Hook name
- * @param mixed $callback String with global function name or array($obj, 'methodname')
- */
- public function unregister_hook($hook, $callback)
- {
- $callback_id = array_search($callback, $this->handlers[$hook]);
- if ($callback_id !== false) {
- unset($this->handlers[$hook][$callback_id]);
- }
- }
-
-
- /**
- * Triggers a plugin hook.
- * This is called from the application and executes all registered handlers
- *
- * @param string $hook Hook name
- * @param array $args Named arguments (key->value pairs)
- * @return array The (probably) altered hook arguments
- */
- public function exec_hook($hook, $args = array())
- {
- if (!is_array($args))
- $args = array('arg' => $args);
-
- $args += array('abort' => false);
- $this->active_hook = $hook;
-
- foreach ((array)$this->handlers[$hook] as $callback) {
- $ret = call_user_func($callback, $args);
- if ($ret && is_array($ret))
- $args = $ret + $args;
-
- if ($args['abort'])
- break;
+ // trigger fatal error if still not loaded
+ if (!$loaded) {
+ rcube::raise_error(array(
+ 'code' => 520, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Requried plugin $plugin_name was not loaded"), true, true);
+ }
+ }
}
- $this->active_hook = false;
- return $args;
- }
+ /**
+ * Load the specified plugin
+ *
+ * @param string Plugin name
+ * @param boolean Force loading of the plugin even if it doesn't match the filter
+ * @param boolean Require loading of the plugin, error if it doesn't exist
+ *
+ * @return boolean True on success, false if not loaded or failure
+ */
+ public function load_plugin($plugin_name, $force = false, $require = true)
+ {
+ static $plugins_dir;
+ if (!$plugins_dir) {
+ $dir = dir($this->dir);
+ $plugins_dir = unslashify($dir->path);
+ }
- /**
- * Let a plugin register a handler for a specific request
- *
- * @param string $action Action name (_task=mail&_action=plugin.foo)
- * @param string $owner Plugin name that registers this action
- * @param mixed $callback Callback: string with global function name or array($obj, 'methodname')
- * @param string $task Task name registered by this plugin
- */
- public function register_action($action, $owner, $callback, $task = null)
- {
- // check action name
- if ($task)
- $action = $task.'.'.$action;
- else if (strpos($action, 'plugin.') !== 0)
- $action = 'plugin.'.$action;
+ // plugin already loaded?
+ if (!$this->plugins[$plugin_name]) {
+ $fn = "$plugins_dir/$plugin_name/$plugin_name.php";
- // can register action only if it's not taken or registered by myself
- if (!isset($this->actionmap[$action]) || $this->actionmap[$action] == $owner) {
- $this->actions[$action] = $callback;
- $this->actionmap[$action] = $owner;
- }
- else {
- rcube::raise_error(array('code' => 523, 'type' => 'php',
- 'file' => __FILE__, 'line' => __LINE__,
- 'message' => "Cannot register action $action; already taken by another plugin"), true, false);
- }
- }
+ if (!is_readable($fn)) {
+ if ($require) {
+ rcube::raise_error(array('code' => 520, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Failed to load plugin file $fn"), true, false);
+ }
+ return false;
+ }
- /**
- * This method handles requests like _task=mail&_action=plugin.foo
- * It executes the callback function that was registered with the given action.
- *
- * @param string $action Action name
- */
- public function exec_action($action)
- {
- if (isset($this->actions[$action])) {
- call_user_func($this->actions[$action]);
- }
- else if (rcube::get_instance()->action != 'refresh') {
- rcube::raise_error(array('code' => 524, 'type' => 'php',
- 'file' => __FILE__, 'line' => __LINE__,
- 'message' => "No handler found for action $action"), true, true);
- }
- }
+ if (!class_exists($plugin_name, false)) {
+ include $fn;
+ }
+ // instantiate class if exists
+ if (!class_exists($plugin_name, false)) {
+ rcube::raise_error(array('code' => 520, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "No plugin class $plugin_name found in $fn"),
+ true, false);
- /**
- * Register a handler function for template objects
- *
- * @param string $name Object name
- * @param string $owner Plugin name that registers this action
- * @param mixed $callback Callback: string with global function name or array($obj, 'methodname')
- */
- public function register_handler($name, $owner, $callback)
- {
- // check name
- if (strpos($name, 'plugin.') !== 0)
- $name = 'plugin.'.$name;
+ return false;
+ }
- // can register handler only if it's not taken or registered by myself
- if (is_object($this->output) && (!isset($this->objectsmap[$name]) || $this->objectsmap[$name] == $owner)) {
- $this->output->add_handler($name, $callback);
- $this->objectsmap[$name] = $owner;
- }
- else {
- rcube::raise_error(array('code' => 525, 'type' => 'php',
- 'file' => __FILE__, 'line' => __LINE__,
- 'message' => "Cannot register template handler $name; already taken by another plugin or no output object available"), true, false);
- }
- }
+ $plugin = new $plugin_name($this);
+ $this->active_plugins[] = $plugin_name;
+ // check inheritance...
+ if (is_subclass_of($plugin, 'rcube_plugin')) {
+ // call onload method on plugin if it exists.
+ // this is useful if you want to be called early in the boot process
+ if (method_exists($plugin, 'onload')) {
+ $plugin->onload();
+ }
- /**
- * Register this plugin to be responsible for a specific task
- *
- * @param string $task Task name (only characters [a-z0-9_.-] are allowed)
- * @param string $owner Plugin name that registers this action
- */
- public function register_task($task, $owner)
- {
- if ($task != asciiwords($task)) {
- rcube::raise_error(array('code' => 526, 'type' => 'php',
- 'file' => __FILE__, 'line' => __LINE__,
- 'message' => "Invalid task name: $task. Only characters [a-z0-9_.-] are allowed"), true, false);
- }
- else if (in_array($task, rcmail::$main_tasks)) {
- rcube::raise_error(array('code' => 526, 'type' => 'php',
- 'file' => __FILE__, 'line' => __LINE__,
- 'message' => "Cannot register taks $task; already taken by another plugin or the application itself"), true, false);
- }
- else {
- $this->tasks[$task] = $owner;
- rcmail::$main_tasks[] = $task;
- return true;
+ if (!empty($plugin->allowed_prefs)) {
+ $this->allowed_prefs = array_merge($this->allowed_prefs, $plugin->allowed_prefs);
+ }
+
+ $this->plugins[$plugin_name] = $plugin;
+ }
+ }
+
+ if ($plugin = $this->plugins[$plugin_name]) {
+ // init a plugin only if $force is set or if we're called after initialization
+ if (($force || $this->initialized) && !$this->plugins_initialized[$plugin_name] && ($force || !$this->filter($plugin))) {
+ $plugin->init();
+ $this->plugins_initialized[$plugin_name] = $plugin;
+ }
+ }
+
+ return true;
}
- return false;
- }
-
-
- /**
- * Checks whether the given task is registered by a plugin
- *
- * @param string $task Task name
- * @return boolean True if registered, otherwise false
- */
- public function is_plugin_task($task)
- {
- return $this->tasks[$task] ? true : false;
- }
-
-
- /**
- * Check if a plugin hook is currently processing.
- * Mainly used to prevent loops and recursion.
- *
- * @param string $hook Hook to check (optional)
- * @return boolean True if any/the given hook is currently processed, otherwise false
- */
- public function is_processing($hook = null)
- {
- return $this->active_hook && (!$hook || $this->active_hook == $hook);
- }
-
- /**
- * Include a plugin script file in the current HTML page
- *
- * @param string $fn Path to script
- */
- public function include_script($fn)
- {
- if (is_object($this->output) && $this->output->type == 'html') {
- $src = $this->resource_url($fn);
- $this->output->add_header(html::tag('script', array('type' => "text/javascript", 'src' => $src)));
+ /**
+ * check if we should prevent this plugin from initialising
+ *
+ * @param $plugin
+ * @return bool
+ */
+ private function filter($plugin)
+ {
+ return ($plugin->noajax && !(is_object($this->output) && $this->output->type == 'html'))
+ || ($plugin->task && !preg_match('/^('.$plugin->task.')$/i', $this->task))
+ || ($plugin->noframe && !empty($_REQUEST['_framed']));
}
- }
+ /**
+ * Get information about a specific plugin.
+ * This is either provided my a plugin's info() method or extracted from a package.xml or a composer.json file
+ *
+ * @param string Plugin name
+ * @return array Meta information about a plugin or False if plugin was not found
+ */
+ public function get_info($plugin_name)
+ {
+ static $composer_lock, $license_uris = array(
+ 'Apache' => 'http://www.apache.org/licenses/LICENSE-2.0.html',
+ 'Apache-2' => 'http://www.apache.org/licenses/LICENSE-2.0.html',
+ 'Apache-1' => 'http://www.apache.org/licenses/LICENSE-1.0',
+ 'Apache-1.1' => 'http://www.apache.org/licenses/LICENSE-1.1',
+ 'GPL' => 'http://www.gnu.org/licenses/gpl.html',
+ 'GPLv2' => 'http://www.gnu.org/licenses/gpl-2.0.html',
+ 'GPL-2.0' => 'http://www.gnu.org/licenses/gpl-2.0.html',
+ 'GPLv3' => 'http://www.gnu.org/licenses/gpl-3.0.html',
+ 'GPLv3+' => 'http://www.gnu.org/licenses/gpl-3.0.html',
+ 'GPL-3.0' => 'http://www.gnu.org/licenses/gpl-3.0.html',
+ 'GPL-3.0+' => 'http://www.gnu.org/licenses/gpl.html',
+ 'GPL-2.0+' => 'http://www.gnu.org/licenses/gpl.html',
+ 'AGPLv3' => 'http://www.gnu.org/licenses/agpl.html',
+ 'AGPLv3+' => 'http://www.gnu.org/licenses/agpl.html',
+ 'AGPL-3.0' => 'http://www.gnu.org/licenses/agpl.html',
+ 'LGPL' => 'http://www.gnu.org/licenses/lgpl.html',
+ 'LGPLv2' => 'http://www.gnu.org/licenses/lgpl-2.0.html',
+ 'LGPLv2.1' => 'http://www.gnu.org/licenses/lgpl-2.1.html',
+ 'LGPLv3' => 'http://www.gnu.org/licenses/lgpl.html',
+ 'LGPL-2.0' => 'http://www.gnu.org/licenses/lgpl-2.0.html',
+ 'LGPL-2.1' => 'http://www.gnu.org/licenses/lgpl-2.1.html',
+ 'LGPL-3.0' => 'http://www.gnu.org/licenses/lgpl.html',
+ 'LGPL-3.0+' => 'http://www.gnu.org/licenses/lgpl.html',
+ 'BSD' => 'http://opensource.org/licenses/bsd-license.html',
+ 'BSD-2-Clause' => 'http://opensource.org/licenses/BSD-2-Clause',
+ 'BSD-3-Clause' => 'http://opensource.org/licenses/BSD-3-Clause',
+ 'FreeBSD' => 'http://opensource.org/licenses/BSD-2-Clause',
+ 'MIT' => 'http://www.opensource.org/licenses/mit-license.php',
+ 'PHP' => 'http://opensource.org/licenses/PHP-3.0',
+ 'PHP-3' => 'http://www.php.net/license/3_01.txt',
+ 'PHP-3.0' => 'http://www.php.net/license/3_0.txt',
+ 'PHP-3.01' => 'http://www.php.net/license/3_01.txt',
+ );
- /**
- * Include a plugin stylesheet in the current HTML page
- *
- * @param string $fn Path to stylesheet
- */
- public function include_stylesheet($fn)
- {
- if (is_object($this->output) && $this->output->type == 'html') {
- $src = $this->resource_url($fn);
- $this->output->include_css($src);
+ $dir = dir($this->dir);
+ $fn = unslashify($dir->path) . "/$plugin_name/$plugin_name.php";
+ $info = false;
+
+ if (!class_exists($plugin_name, false)) {
+ if (is_readable($fn)) {
+ include($fn);
+ }
+ else {
+ return false;
+ }
+ }
+
+ if (class_exists($plugin_name)) {
+ $info = $plugin_name::info();
+ }
+
+ // fall back to composer.json file
+ if (!$info) {
+ $composer = INSTALL_PATH . "/plugins/$plugin_name/composer.json";
+ if (is_readable($composer) && ($json = @json_decode(file_get_contents($composer), true))) {
+ list($info['vendor'], $info['name']) = explode('/', $json['name']);
+ $info['version'] = $json['version'];
+ $info['license'] = $json['license'];
+ $info['uri'] = $json['homepage'];
+ $info['require'] = array_filter(array_keys((array)$json['require']), function($pname) {
+ if (strpos($pname, '/') == false) {
+ return false;
+ }
+ list($vendor, $name) = explode('/', $pname);
+ return !($name == 'plugin-installer' || $vendor == 'pear-pear');
+ });
+ }
+
+ // read local composer.lock file (once)
+ if (!isset($composer_lock)) {
+ $composer_lock = @json_decode(@file_get_contents(INSTALL_PATH . "/composer.lock"), true);
+ if ($composer_lock['packages']) {
+ foreach ($composer_lock['packages'] as $i => $package) {
+ $composer_lock['installed'][$package['name']] = $package;
+ }
+ }
+ }
+
+ // load additional information from local composer.lock file
+ if ($lock = $composer_lock['installed'][$json['name']]) {
+ $info['version'] = $lock['version'];
+ $info['uri'] = $lock['homepage'] ? $lock['homepage'] : $lock['source']['uri'];
+ $info['src_uri'] = $lock['dist']['uri'] ? $lock['dist']['uri'] : $lock['source']['uri'];
+ }
+ }
+
+ // fall back to package.xml file
+ if (!$info) {
+ $package = INSTALL_PATH . "/plugins/$plugin_name/package.xml";
+ if (is_readable($package) && ($file = file_get_contents($package))) {
+ $doc = new DOMDocument();
+ $doc->loadXML($file);
+ $xpath = new DOMXPath($doc);
+ $xpath->registerNamespace('rc', "http://pear.php.net/dtd/package-2.0");
+
+ // XPaths of plugin metadata elements
+ $metadata = array(
+ 'name' => 'string(//rc:package/rc:name)',
+ 'version' => 'string(//rc:package/rc:version/rc:release)',
+ 'license' => 'string(//rc:package/rc:license)',
+ 'license_uri' => 'string(//rc:package/rc:license/@uri)',
+ 'src_uri' => 'string(//rc:package/rc:srcuri)',
+ 'uri' => 'string(//rc:package/rc:uri)',
+ );
+
+ foreach ($metadata as $key => $path) {
+ $info[$key] = $xpath->evaluate($path);
+ }
+
+ // dependent required plugins (can be used, but not included in config)
+ $deps = $xpath->evaluate('//rc:package/rc:dependencies/rc:required/rc:package/rc:name');
+ for ($i = 0; $i < $deps->length; $i++) {
+ $dn = $deps->item($i)->nodeValue;
+ $info['require'][] = $dn;
+ }
+ }
+ }
+
+ // At least provide the name
+ if (!$info && class_exists($plugin_name)) {
+ $info = array('name' => $plugin_name, 'version' => '--');
+ }
+ else if ($info['license'] && empty($info['license_uri']) && ($license_uri = $license_uris[$info['license']])) {
+ $info['license_uri'] = $license_uri;
+ }
+
+ return $info;
}
- }
+ /**
+ * Allows a plugin object to register a callback for a certain hook
+ *
+ * @param string $hook Hook name
+ * @param mixed $callback String with global function name or array($obj, 'methodname')
+ */
+ public function register_hook($hook, $callback)
+ {
+ if (is_callable($callback)) {
+ if (isset($this->deprecated_hooks[$hook])) {
+ rcube::raise_error(array('code' => 522, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Deprecated hook name. "
+ . $hook . ' -> ' . $this->deprecated_hooks[$hook]), true, false);
+ $hook = $this->deprecated_hooks[$hook];
+ }
+ $this->handlers[$hook][] = $callback;
+ }
+ else {
+ rcube::raise_error(array('code' => 521, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Invalid callback function for $hook"), true, false);
+ }
+ }
- /**
- * Save the given HTML content to be added to a template container
- *
- * @param string $html HTML content
- * @param string $container Template container identifier
- */
- public function add_content($html, $container)
- {
- $this->template_contents[$container] .= $html . "\n";
- }
+ /**
+ * Allow a plugin object to unregister a callback.
+ *
+ * @param string $hook Hook name
+ * @param mixed $callback String with global function name or array($obj, 'methodname')
+ */
+ public function unregister_hook($hook, $callback)
+ {
+ $callback_id = array_search($callback, (array) $this->handlers[$hook]);
+ if ($callback_id !== false) {
+ // array_splice() removes the element and re-indexes keys
+ // that is required by the 'for' loop in exec_hook() below
+ array_splice($this->handlers[$hook], $callback_id, 1);
+ }
+ }
+ /**
+ * Triggers a plugin hook.
+ * This is called from the application and executes all registered handlers
+ *
+ * @param string $hook Hook name
+ * @param array $args Named arguments (key->value pairs)
+ *
+ * @return array The (probably) altered hook arguments
+ */
+ public function exec_hook($hook, $args = array())
+ {
+ if (!is_array($args)) {
+ $args = array('arg' => $args);
+ }
- /**
- * Returns list of loaded plugins names
- *
- * @return array List of plugin names
- */
- public function loaded_plugins()
- {
- return array_keys($this->plugins);
- }
+ // TODO: avoid recursion by checking in_array($hook, $this->exec_stack) ?
+ $args += array('abort' => false);
+ array_push($this->exec_stack, $hook);
- /**
- * Callback for template_container hooks
- *
- * @param array $attrib
- * @return array
- */
- protected function template_container_hook($attrib)
- {
- $container = $attrib['name'];
- return array('content' => $attrib['content'] . $this->template_contents[$container]);
- }
+ // Use for loop here, so handlers added in the hook will be executed too
+ for ($i = 0; $i < count($this->handlers[$hook]); $i++) {
+ $ret = call_user_func($this->handlers[$hook][$i], $args);
+ if ($ret && is_array($ret)) {
+ $args = $ret + $args;
+ }
+ if ($args['break']) {
+ break;
+ }
+ }
- /**
- * Make the given file name link into the plugins directory
- *
- * @param string $fn Filename
- * @return string
- */
- protected function resource_url($fn)
- {
- if ($fn[0] != '/' && !preg_match('|^https?://|i', $fn))
- return $this->url . $fn;
- else
- return $fn;
- }
+ array_pop($this->exec_stack);
+ return $args;
+ }
+ /**
+ * Let a plugin register a handler for a specific request
+ *
+ * @param string $action Action name (_task=mail&_action=plugin.foo)
+ * @param string $owner Plugin name that registers this action
+ * @param mixed $callback Callback: string with global function name or array($obj, 'methodname')
+ * @param string $task Task name registered by this plugin
+ */
+ public function register_action($action, $owner, $callback, $task = null)
+ {
+ // check action name
+ if ($task)
+ $action = $task.'.'.$action;
+ else if (strpos($action, 'plugin.') !== 0)
+ $action = 'plugin.'.$action;
+
+ // can register action only if it's not taken or registered by myself
+ if (!isset($this->actionmap[$action]) || $this->actionmap[$action] == $owner) {
+ $this->actions[$action] = $callback;
+ $this->actionmap[$action] = $owner;
+ }
+ else {
+ rcube::raise_error(array('code' => 523, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Cannot register action $action;"
+ ." already taken by another plugin"), true, false);
+ }
+ }
+
+ /**
+ * This method handles requests like _task=mail&_action=plugin.foo
+ * It executes the callback function that was registered with the given action.
+ *
+ * @param string $action Action name
+ */
+ public function exec_action($action)
+ {
+ if (isset($this->actions[$action])) {
+ call_user_func($this->actions[$action]);
+ }
+ else if (rcube::get_instance()->action != 'refresh') {
+ rcube::raise_error(array('code' => 524, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "No handler found for action $action"), true, true);
+ }
+ }
+
+ /**
+ * Register a handler function for template objects
+ *
+ * @param string $name Object name
+ * @param string $owner Plugin name that registers this action
+ * @param mixed $callback Callback: string with global function name or array($obj, 'methodname')
+ */
+ public function register_handler($name, $owner, $callback)
+ {
+ // check name
+ if (strpos($name, 'plugin.') !== 0) {
+ $name = 'plugin.' . $name;
+ }
+
+ // can register handler only if it's not taken or registered by myself
+ if (is_object($this->output)
+ && (!isset($this->objectsmap[$name]) || $this->objectsmap[$name] == $owner)
+ ) {
+ $this->output->add_handler($name, $callback);
+ $this->objectsmap[$name] = $owner;
+ }
+ else {
+ rcube::raise_error(array('code' => 525, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Cannot register template handler $name;"
+ ." already taken by another plugin or no output object available"), true, false);
+ }
+ }
+
+ /**
+ * Register this plugin to be responsible for a specific task
+ *
+ * @param string $task Task name (only characters [a-z0-9_-] are allowed)
+ * @param string $owner Plugin name that registers this action
+ */
+ public function register_task($task, $owner)
+ {
+ // tasks are irrelevant in framework mode
+ if (!class_exists('rcmail', false)) {
+ return true;
+ }
+
+ if ($task != asciiwords($task, true)) {
+ rcube::raise_error(array('code' => 526, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Invalid task name: $task."
+ ." Only characters [a-z0-9_.-] are allowed"), true, false);
+ }
+ else if (in_array($task, rcmail::$main_tasks)) {
+ rcube::raise_error(array('code' => 526, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Cannot register taks $task;"
+ ." already taken by another plugin or the application itself"), true, false);
+ }
+ else {
+ $this->tasks[$task] = $owner;
+ rcmail::$main_tasks[] = $task;
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Checks whether the given task is registered by a plugin
+ *
+ * @param string $task Task name
+ *
+ * @return boolean True if registered, otherwise false
+ */
+ public function is_plugin_task($task)
+ {
+ return $this->tasks[$task] ? true : false;
+ }
+
+ /**
+ * Check if a plugin hook is currently processing.
+ * Mainly used to prevent loops and recursion.
+ *
+ * @param string $hook Hook to check (optional)
+ *
+ * @return boolean True if any/the given hook is currently processed, otherwise false
+ */
+ public function is_processing($hook = null)
+ {
+ return count($this->exec_stack) > 0 && (!$hook || in_array($hook, $this->exec_stack));
+ }
+
+ /**
+ * Include a plugin script file in the current HTML page
+ *
+ * @param string $fn Path to script
+ */
+ public function include_script($fn)
+ {
+ if (is_object($this->output) && $this->output->type == 'html') {
+ $src = $this->resource_url($fn);
+ $this->output->add_header(html::tag('script',
+ array('type' => "text/javascript", 'src' => $src)));
+ }
+ }
+
+ /**
+ * Include a plugin stylesheet in the current HTML page
+ *
+ * @param string $fn Path to stylesheet
+ */
+ public function include_stylesheet($fn)
+ {
+ if (is_object($this->output) && $this->output->type == 'html') {
+ $src = $this->resource_url($fn);
+ $this->output->include_css($src);
+ }
+ }
+
+ /**
+ * Save the given HTML content to be added to a template container
+ *
+ * @param string $html HTML content
+ * @param string $container Template container identifier
+ */
+ public function add_content($html, $container)
+ {
+ $this->template_contents[$container] .= $html . "\n";
+ }
+
+ /**
+ * Returns list of loaded plugins names
+ *
+ * @return array List of plugin names
+ */
+ public function loaded_plugins()
+ {
+ return array_keys($this->plugins);
+ }
+
+ /**
+ * Returns loaded plugin
+ *
+ * @return rcube_plugin Plugin instance
+ */
+ public function get_plugin($name)
+ {
+ return $this->plugins[$name];
+ }
+
+ /**
+ * Callback for template_container hooks
+ *
+ * @param array $attrib
+ * @return array
+ */
+ protected function template_container_hook($attrib)
+ {
+ $container = $attrib['name'];
+ return array('content' => $attrib['content'] . $this->template_contents[$container]);
+ }
+
+ /**
+ * Make the given file name link into the plugins directory
+ *
+ * @param string $fn Filename
+ * @return string
+ */
+ protected function resource_url($fn)
+ {
+ if ($fn[0] != '/' && !preg_match('|^https?://|i', $fn))
+ return $this->url . $fn;
+ else
+ return $fn;
+ }
}
--
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