diff options
Diffstat (limited to 'program/lib/Roundcube/rcube_plugin.php')
| -rw-r--r-- | program/lib/Roundcube/rcube_plugin.php | 360 |
1 files changed, 360 insertions, 0 deletions
diff --git a/program/lib/Roundcube/rcube_plugin.php b/program/lib/Roundcube/rcube_plugin.php new file mode 100644 index 000000000..dbb15e8be --- /dev/null +++ b/program/lib/Roundcube/rcube_plugin.php @@ -0,0 +1,360 @@ +<?php + +/* + +-----------------------------------------------------------------------+ + | program/include/rcube_plugin.php | + | | + | This file is part of the Roundcube Webmail client | + | Copyright (C) 2008-2009, The Roundcube Dev Team | + | | + | Licensed under the GNU General Public License version 3 or | + | any later version with exceptions for skins & plugins. | + | See the README file for a full license statement. | + | | + | PURPOSE: | + | Abstract plugins interface/class | + | All plugins need to extend this class | + +-----------------------------------------------------------------------+ + | Author: Thomas Bruederli <roundcube@gmail.com> | + +-----------------------------------------------------------------------+ +*/ + +/** + * Plugin interface class + * + * @package Framework + * @subpackage PluginAPI + */ +abstract class rcube_plugin +{ + /** + * Class name of the plugin instance + * + * @var string + */ + public $ID; + + /** + * Instance of Plugin API + * + * @var rcube_plugin_api + */ + public $api; + + /** + * Regular expression defining task(s) to bind with + * + * @var string + */ + public $task; + + /** + * Disables plugin in AJAX requests + * + * @var boolean + */ + public $noajax = false; + + /** + * Disables plugin in framed mode + * + * @var boolean + */ + public $noframe = false; + + protected $home; + protected $urlbase; + private $mytask; + + + /** + * Default constructor. + * + * @param rcube_plugin_api $api Plugin API + */ + public function __construct($api) + { + $this->ID = get_class($this); + $this->api = $api; + $this->home = $api->dir . $this->ID; + $this->urlbase = $api->url . $this->ID . '/'; + } + + /** + * Initialization method, needs to be implemented by the plugin itself + */ + abstract function init(); + + + /** + * Attempt to load the given plugin which is required for the current plugin + * + * @param string Plugin name + * @return boolean True on success, false on failure + */ + public function require_plugin($plugin_name) + { + return $this->api->load_plugin($plugin_name); + } + + + /** + * Load local config file from plugins directory. + * The loaded values are patched over the global configuration. + * + * @param string $fname Config file name relative to the plugin's folder + * @return boolean True on success, false on failure + */ + public function load_config($fname = 'config.inc.php') + { + $fpath = $this->home.'/'.$fname; + $rcube = rcube::get_instance(); + if (is_file($fpath) && !$rcube->config->load_from_file($fpath)) { + rcube::raise_error(array( + 'code' => 527, 'type' => 'php', + 'file' => __FILE__, 'line' => __LINE__, + 'message' => "Failed to load config from $fpath"), true, false); + return false; + } + + return true; + } + + /** + * Register a callback function for a specific (server-side) hook + * + * @param string $hook Hook name + * @param mixed $callback Callback function as string or array with object reference and method name + */ + public function add_hook($hook, $callback) + { + $this->api->register_hook($hook, $callback); + } + + /** + * Unregister a callback function for a specific (server-side) hook. + * + * @param string $hook Hook name + * @param mixed $callback Callback function as string or array with object reference and method name + */ + public function remove_hook($hook, $callback) + { + $this->api->unregister_hook($hook, $callback); + } + + /** + * Load localized texts from the plugins dir + * + * @param string $dir Directory to search in + * @param mixed $add2client Make texts also available on the client (array with list or true for all) + */ + public function add_texts($dir, $add2client = false) + { + $domain = $this->ID; + $lang = $_SESSION['language']; + $langs = array_unique(array('en_US', $lang)); + $locdir = slashify(realpath(slashify($this->home) . $dir)); + $texts = array(); + + // Language aliases used to find localization in similar lang, see below + $aliases = array( + 'de_CH' => 'de_DE', + 'es_AR' => 'es_ES', + 'fa_AF' => 'fa_IR', + 'nl_BE' => 'nl_NL', + 'pt_BR' => 'pt_PT', + 'zh_CN' => 'zh_TW', + ); + + // use buffering to handle empty lines/spaces after closing PHP tag + ob_start(); + + foreach ($langs as $lng) { + $fpath = $locdir . $lng . '.inc'; + if (is_file($fpath) && is_readable($fpath)) { + include $fpath; + $texts = (array)$labels + (array)$messages + (array)$texts; + } + else if ($lng != 'en_US') { + // Find localization in similar language (#1488401) + $alias = null; + if (!empty($aliases[$lng])) { + $alias = $aliases[$lng]; + } + else if ($key = array_search($lng, $aliases)) { + $alias = $key; + } + + if (!empty($alias)) { + $fpath = $locdir . $alias . '.inc'; + if (is_file($fpath) && is_readable($fpath)) { + include $fpath; + $texts = (array)$labels + (array)$messages + (array)$texts; + } + } + } + } + + ob_end_clean(); + + // prepend domain to text keys and add to the application texts repository + if (!empty($texts)) { + $add = array(); + foreach ($texts as $key => $value) + $add[$domain.'.'.$key] = $value; + + $rcmail = rcube::get_instance(); + $rcmail->load_language($lang, $add); + + // add labels to client + if ($add2client) { + $js_labels = is_array($add2client) ? array_map(array($this, 'label_map_callback'), $add2client) : array_keys($add); + $rcmail->output->add_label($js_labels); + } + } + } + + /** + * Wrapper for rcmail::gettext() adding the plugin ID as domain + * + * @param string $p Message identifier + * @return string Localized text + * @see rcmail::gettext() + */ + public function gettext($p) + { + return rcube::get_instance()->gettext($p, $this->ID); + } + + /** + * Register this plugin to be responsible for a specific task + * + * @param string $task Task name (only characters [a-z0-9_.-] are allowed) + */ + public function register_task($task) + { + if ($this->api->register_task($task, $this->ID)) + $this->mytask = $task; + } + + /** + * Register a handler for a specific client-request action + * + * The callback will be executed upon a request like /?_task=mail&_action=plugin.myaction + * + * @param string $action Action name (should be unique) + * @param mixed $callback Callback function as string or array with object reference and method name + */ + public function register_action($action, $callback) + { + $this->api->register_action($action, $this->ID, $callback, $this->mytask); + } + + /** + * Register a handler function for a template object + * + * When parsing a template for display, tags like <roundcube:object name="plugin.myobject" /> + * will be replaced by the return value if the registered callback function. + * + * @param string $name Object name (should be unique and start with 'plugin.') + * @param mixed $callback Callback function as string or array with object reference and method name + */ + public function register_handler($name, $callback) + { + $this->api->register_handler($name, $this->ID, $callback); + } + + /** + * Make this javascipt file available on the client + * + * @param string $fn File path; absolute or relative to the plugin directory + */ + public function include_script($fn) + { + $this->api->include_script($this->resource_url($fn)); + } + + /** + * Make this stylesheet available on the client + * + * @param string $fn File path; absolute or relative to the plugin directory + */ + public function include_stylesheet($fn) + { + $this->api->include_stylesheet($this->resource_url($fn)); + } + + /** + * Append a button to a certain container + * + * @param array $p Hash array with named parameters (as used in skin templates) + * @param string $container Container name where the buttons should be added to + * @see rcube_remplate::button() + */ + public function add_button($p, $container) + { + if ($this->api->output->type == 'html') { + // fix relative paths + foreach (array('imagepas', 'imageact', 'imagesel') as $key) + if ($p[$key]) + $p[$key] = $this->api->url . $this->resource_url($p[$key]); + + $this->api->add_content($this->api->output->button($p), $container); + } + } + + /** + * Generate an absolute URL to the given resource within the current + * plugin directory + * + * @param string $fn The file name + * @return string Absolute URL to the given resource + */ + public function url($fn) + { + return $this->api->url . $this->resource_url($fn); + } + + /** + * Make the given file name link into the plugin directory + * + * @param string $fn Filename + */ + private function resource_url($fn) + { + if ($fn[0] != '/' && !preg_match('|^https?://|i', $fn)) + return $this->ID . '/' . $fn; + else + return $fn; + } + + /** + * Provide path to the currently selected skin folder within the plugin directory + * with a fallback to the default skin folder. + * + * @return string Skin path relative to plugins directory + */ + public function local_skin_path() + { + $rcmail = rcube::get_instance(); + foreach (array($rcmail->config->get('skin'), 'larry') as $skin) { + $skin_path = 'skins/' . $skin; + if (is_dir(realpath(slashify($this->home) . $skin_path))) + break; + } + + return $skin_path; + } + + /** + * Callback function for array_map + * + * @param string $key Array key. + * @return string + */ + private function label_map_callback($key) + { + return $this->ID.'.'.$key; + } + +} |