mirror of
https://github.com/Pathduck/gallery3.git
synced 2026-05-20 11:29:24 -04:00
9b68fd46b2
when the hooks are run, we haven't added all the installed modules to the path, So if a module defines a hook it will never be run. This change runs any module defined hooks as part of the gallery initialization.
278 lines
8.4 KiB
PHP
278 lines
8.4 KiB
PHP
<?php defined("SYSPATH") or die("No direct script access.");
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/**
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* Gallery - a web based photo album viewer and editor
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* Copyright (C) 2000-2008 Bharat Mediratta
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/**
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* This is the API for handling modules.
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*
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* Note: by design, this class does not do any permission checking.
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*/
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class module_Core {
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public static $module_names = array();
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public static $modules = array();
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static function get_version($module_name) {
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return ORM::factory("module")->where("name", $module_name)->find()->version;
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}
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/**
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* Set the version of the corresponding Module_Model
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* @param string $module_name
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* @param integer $version
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*/
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static function set_version($module_name, $version) {
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$module = ORM::factory("module")->where("name", $module_name)->find();
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if (!$module->loaded) {
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$module->name = $module_name;
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}
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$module->version = 1;
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$module->save();
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Kohana::log("debug", "$module_name: version is now $version");
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}
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/**
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* Load the corresponding Module_Model
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* @param string $module_name
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*/
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static function get($module_name) {
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return model_cache::get("module", $module_name, "name");
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}
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/**
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* Delete the corresponding Module_Model
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* @param string $module_name
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*/
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static function delete($module_name) {
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$module = ORM::factory("module")->where("name", $module_name)->find();
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if ($module->loaded) {
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$db = Database::instance();
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$db->delete("graphics_rules", array("module_name" => $module->name));
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$module->delete();
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// We could delete the module vars here too, but it's nice to leave them around in case the
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// module gets reinstalled.
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Kohana::log("debug", "$module_name: module deleted");
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}
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}
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/**
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* Check to see if a module is installed
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* @param string $module_name
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*/
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static function is_installed($module_name) {
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return !empty(self::$module_names[$module_name]);
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}
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/**
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* Return the list of installed modules.
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*/
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static function installed() {
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return self::$modules;
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}
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/**
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* Return the list of available modules.
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*/
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static function available() {
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$modules = new ArrayObject(array(), ArrayObject::ARRAY_AS_PROPS);
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foreach (array_merge(array("core/module.info"), glob(MODPATH . "*/module.info")) as $file) {
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$module_name = basename(dirname($file));
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$modules->$module_name = new ArrayObject(parse_ini_file($file), ArrayObject::ARRAY_AS_PROPS);
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$modules->$module_name->installed =
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empty(self::$modules[$module_name]) ?
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null : self::$modules[$module_name]->version;
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$modules->$module_name->locked = false;
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}
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// Lock certain modules
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$modules->core->locked = true;
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$modules->user->locked = true;
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$modules->ksort();
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return $modules;
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}
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/**
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* Install a module.
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*/
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static function install($module_name) {
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$installer_class = "{$module_name}_installer";
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Kohana::log("debug", "$installer_class install (initial)");
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if ($module_name != "core") {
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require_once(DOCROOT . "modules/${module_name}/helpers/{$installer_class}.php");
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}
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$kohana_modules = Kohana::config("core.modules");
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$kohana_modules[] = MODPATH . $module_name;
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Kohana::config_set("core.modules", $kohana_modules);
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if (method_exists($installer_class, "install")) {
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call_user_func_array(array($installer_class, "install"), array());
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}
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self::load_modules();
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log::success("module", t("Installed module %module_name", array("module_name" => $module_name)));
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}
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/**
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* Uninstall a module.
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*/
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static function uninstall($module_name) {
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$installer_class = "{$module_name}_installer";
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Kohana::log("debug", "$installer_class uninstall");
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call_user_func(array($installer_class, "uninstall"));
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log::success("module", t("Uninstalled module %module_name", array("module_name" => $module_name)));
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}
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/**
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* Load the active modules. This is called at bootstrap time.
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*/
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static function load_modules() {
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// Reload module list from the config file since we'll do a refresh after calling install()
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$core = Kohana::config_load("core");
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$kohana_modules = $core["modules"];
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self::$module_names = array();
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self::$modules = array();
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// This is one of the first database operations that we'll do, so it may fail if there's no
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// install yet. Try to handle this situation gracefully expecting that the scaffolding will
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// Do The Right Thing.
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// Reverting from installer stage 1.
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// @todo get rid of this extra error checking when we have an installer.
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set_error_handler(array("module", "dummy_error_handler"));
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try {
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$modules = ORM::factory("module")->find_all();
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} catch (Exception $e) {
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return;
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}
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try {
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$hooks = array();
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foreach ($modules as $module) {
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self::$module_names[$module->name] = $module->name;
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self::$modules[$module->name] = $module;
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$kohana_modules[] = MODPATH . $module->name;
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$module_path = MODPATH . $module->name;
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$kohana_modules[] = $module_path;
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if (file_exists("$module_path/hooks") &&
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($hook_files = glob("$module_path/hooks/*.php")) !== false) {
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$hooks = array_merge($hooks, $hook_files);
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}
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}
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Kohana::config_set("core.modules", $kohana_modules);
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/*
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* Kohana loads the hooks before all the installed module paths are defined, so lets call
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* any module hooks now
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*/
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foreach($hooks as $hook) {
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include($hook);
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}
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} catch (Exception $e) {
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self::$module_names = array();
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self::$modules = array();
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}
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self::event("gallery_ready");
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}
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static function dummy_error_handler() { }
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/**
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* Run a specific event on all active modules.
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* @param string $name the event name
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* @param mixed $data data to pass to each event handler
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*/
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static function event($name, &$data=null) {
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foreach (self::installed() as $module) {
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$class = "{$module->name}_event";
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$function = str_replace(".", "_", $name);
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if (method_exists($class, $function)) {
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$args = func_get_args();
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array_shift($args);
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call_user_func_array(array($class, $function), $args);
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}
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}
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}
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/**
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* Get a variable from this module
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* @param string $module_name
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* @param string $name
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* @param string $default_value
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* @return the value
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*/
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static function get_var($module_name, $name, $default_value=null) {
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$var = ORM::factory("var")
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->where("module_name", $module_name)
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->where("name", $name)
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->find();
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return $var->loaded ? $var->value : $default_value;
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}
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/**
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* Store a variable for this module
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* @param string $module_name
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* @param string $name
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* @param string $value
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*/
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static function set_var($module_name, $name, $value) {
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$var = ORM::factory("var")
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->where("module_name", $module_name)
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->where("name", $name)
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->find();
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if (!$var->loaded) {
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$var = ORM::factory("var");
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$var->module_name = $module_name;
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$var->name = $name;
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}
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$var->value = $value;
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$var->save();
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}
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/**
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* Increment the value of a variable for this module
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* @param string $module_name
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* @param string $name
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* @param string $increment (optional, default is 1)
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*/
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static function incr_var($module_name, $name, $increment=1) {
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Database::instance()->query(
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"UPDATE {vars} SET `value` = `value` + $increment " .
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"WHERE `module_name` = '$module_name' " .
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"AND `name` = '$name'");
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}
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/**
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* Remove a variable for this module.
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* @param string $module_name
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* @param string $name
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*/
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static function clear_var($module_name, $name) {
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$var = ORM::factory("var")
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->where("module_name", $module_name)
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->where("name", $name)
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->find();
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if ($var->loaded) {
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$var->delete();
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}
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}
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}
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