5a02e39a65
- renamed a lot of App methods to CamelCase - replaced direct public variables with get-/set-Methods
405 lines
9.8 KiB
PHP
405 lines
9.8 KiB
PHP
<?php
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/**
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* @file src/Core/Addon.php
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*/
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namespace Friendica\Core;
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use Friendica\App;
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use Friendica\BaseObject;
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use Friendica\Database\DBA;
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require_once 'include/dba.php';
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/**
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* Some functions to handle addons
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*/
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class Addon extends BaseObject
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{
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/**
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* @brief Synchronise addons:
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*
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* system.addon contains a comma-separated list of names
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* of addons which are used on this system.
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* Go through the database list of already installed addons, and if we have
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* an entry, but it isn't in the config list, call the uninstall procedure
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* and mark it uninstalled in the database (for now we'll remove it).
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* Then go through the config list and if we have a addon that isn't installed,
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* call the install procedure and add it to the database.
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*
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*/
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public static function check()
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{
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$a = self::getApp();
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$r = DBA::select('addon', [], ['installed' => 1]);
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if (DBA::isResult($r)) {
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$installed = DBA::toArray($r);
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} else {
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$installed = [];
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}
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$addons = Config::get('system', 'addon');
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$addons_arr = [];
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if ($addons) {
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$addons_arr = explode(',', str_replace(' ', '', $addons));
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}
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$a->addons = $addons_arr;
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$installed_arr = [];
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if (count($installed)) {
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foreach ($installed as $i) {
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if (!in_array($i['name'], $addons_arr)) {
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self::uninstall($i['name']);
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} else {
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$installed_arr[] = $i['name'];
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}
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}
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}
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if (count($addons_arr)) {
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foreach ($addons_arr as $p) {
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if (!in_array($p, $installed_arr)) {
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self::install($p);
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}
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}
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}
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self::loadHooks();
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return;
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}
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/**
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* @brief uninstalls an addon.
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*
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* @param string $addon name of the addon
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* @return boolean
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*/
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public static function uninstall($addon)
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{
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logger("Addons: uninstalling " . $addon);
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DBA::delete('addon', ['name' => $addon]);
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@include_once('addon/' . $addon . '/' . $addon . '.php');
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if (function_exists($addon . '_uninstall')) {
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$func = $addon . '_uninstall';
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$func();
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}
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}
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/**
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* @brief installs an addon.
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*
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* @param string $addon name of the addon
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* @return bool
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*/
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public static function install($addon)
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{
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// silently fail if addon was removed
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if (!file_exists('addon/' . $addon . '/' . $addon . '.php')) {
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return false;
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}
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logger("Addons: installing " . $addon);
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$t = @filemtime('addon/' . $addon . '/' . $addon . '.php');
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@include_once('addon/' . $addon . '/' . $addon . '.php');
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if (function_exists($addon . '_install')) {
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$func = $addon . '_install';
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$func();
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$addon_admin = (function_exists($addon."_addon_admin") ? 1 : 0);
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DBA::insert('addon', ['name' => $addon, 'installed' => true,
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'timestamp' => $t, 'plugin_admin' => $addon_admin]);
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// we can add the following with the previous SQL
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// once most site tables have been updated.
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// This way the system won't fall over dead during the update.
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if (file_exists('addon/' . $addon . '/.hidden')) {
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DBA::update('addon', ['hidden' => true], ['name' => $addon]);
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}
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return true;
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} else {
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logger("Addons: FAILED installing " . $addon);
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return false;
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}
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}
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/**
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* reload all updated addons
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*/
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public static function reload()
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{
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$addons = Config::get('system', 'addon');
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if (strlen($addons)) {
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$r = DBA::select('addon', [], ['installed' => 1]);
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if (DBA::isResult($r)) {
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$installed = DBA::toArray($r);
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} else {
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$installed = [];
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}
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$addon_list = explode(',', $addons);
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if (count($addon_list)) {
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foreach ($addon_list as $addon) {
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$addon = trim($addon);
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$fname = 'addon/' . $addon . '/' . $addon . '.php';
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if (file_exists($fname)) {
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$t = @filemtime($fname);
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foreach ($installed as $i) {
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if (($i['name'] == $addon) && ($i['timestamp'] != $t)) {
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logger('Reloading addon: ' . $i['name']);
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@include_once($fname);
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if (function_exists($addon . '_uninstall')) {
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$func = $addon . '_uninstall';
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$func();
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}
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if (function_exists($addon . '_install')) {
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$func = $addon . '_install';
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$func();
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}
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DBA::update('addon', ['timestamp' => $t], ['id' => $i['id']]);
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}
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}
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}
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}
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}
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}
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}
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/**
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* @brief check if addon is enabled
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*
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* @param string $addon
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* @return boolean
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*/
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public static function isEnabled($addon)
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{
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return DBA::exists('addon', ['installed' => true, 'name' => $addon]);
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}
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/**
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* @brief registers a hook.
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*
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* @param string $hook the name of the hook
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* @param string $file the name of the file that hooks into
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* @param string $function the name of the function that the hook will call
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* @param int $priority A priority (defaults to 0)
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* @return mixed|bool
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*/
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public static function registerHook($hook, $file, $function, $priority = 0)
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{
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$file = str_replace(self::getApp()->getBasePath() . DIRECTORY_SEPARATOR, '', $file);
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$condition = ['hook' => $hook, 'file' => $file, 'function' => $function];
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$exists = DBA::exists('hook', $condition);
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if ($exists) {
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return true;
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}
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$r = DBA::insert('hook', ['hook' => $hook, 'file' => $file, 'function' => $function, 'priority' => $priority]);
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return $r;
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}
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/**
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* @brief unregisters a hook.
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*
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* @param string $hook the name of the hook
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* @param string $file the name of the file that hooks into
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* @param string $function the name of the function that the hook called
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* @return array
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*/
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public static function unregisterHook($hook, $file, $function)
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{
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$relative_file = str_replace(self::getApp()->getBasePath() . DIRECTORY_SEPARATOR, '', $file);
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// This here is only needed for fixing a problem that existed on the develop branch
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$condition = ['hook' => $hook, 'file' => $file, 'function' => $function];
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DBA::delete('hook', $condition);
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$condition = ['hook' => $hook, 'file' => $relative_file, 'function' => $function];
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$r = DBA::delete('hook', $condition);
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return $r;
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}
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/**
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* Load hooks
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*/
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public static function loadHooks()
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{
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$a = self::getApp();
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$a->hooks = [];
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$r = DBA::select('hook', ['hook', 'file', 'function'], [], ['order' => ['priority' => 'desc', 'file']]);
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while ($rr = DBA::fetch($r)) {
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if (! array_key_exists($rr['hook'], $a->hooks)) {
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$a->hooks[$rr['hook']] = [];
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}
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$a->hooks[$rr['hook']][] = [$rr['file'],$rr['function']];
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}
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DBA::close($r);
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}
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/**
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* @brief Forks a hook.
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*
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* Use this function when you want to fork a hook via the worker.
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*
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* @param string $name of the hook to call
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* @param string|array $data to transmit to the callback handler
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*/
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public static function forkHooks($priority, $name, $data = null)
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{
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$a = self::getApp();
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if (is_array($a->hooks) && array_key_exists($name, $a->hooks)) {
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foreach ($a->hooks[$name] as $hook) {
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Worker::add($priority, 'ForkHook', $name, $hook, $data);
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}
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}
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}
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/**
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* @brief Calls a hook.
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*
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* Use this function when you want to be able to allow a hook to manipulate
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* the provided data.
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*
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* @param string $name of the hook to call
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* @param string|array &$data to transmit to the callback handler
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*/
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public static function callHooks($name, &$data = null)
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{
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$a = self::getApp();
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if (is_array($a->hooks) && array_key_exists($name, $a->hooks)) {
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foreach ($a->hooks[$name] as $hook) {
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self::callSingleHook($a, $name, $hook, $data);
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}
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}
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}
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/**
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* @brief Calls a single hook.
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*
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* @param App $a
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* @param string $name of the hook to call
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* @param array $hook Hook data
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* @param string|array &$data to transmit to the callback handler
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*/
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public static function callSingleHook(App $a, $name, $hook, &$data = null)
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{
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// Don't run a theme's hook if the user isn't using the theme
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if (strpos($hook[0], 'view/theme/') !== false && strpos($hook[0], 'view/theme/' . $a->getCurrentTheme()) === false) {
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return;
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}
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@include_once($hook[0]);
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if (function_exists($hook[1])) {
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$func = $hook[1];
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$func($a, $data);
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} else {
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// remove orphan hooks
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$condition = ['hook' => $name, 'file' => $hook[0], 'function' => $hook[1]];
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DBA::delete('hook', $condition, ['cascade' => false]);
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}
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}
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/**
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* check if an app_menu hook exist for addon $name.
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* Return true if the addon is an app
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*/
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public static function isApp($name)
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{
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$a = self::getApp();
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if (is_array($a->hooks) && (array_key_exists('app_menu', $a->hooks))) {
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foreach ($a->hooks['app_menu'] as $hook) {
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if ($hook[0] == 'addon/'.$name.'/'.$name.'.php') {
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return true;
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}
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}
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}
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return false;
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}
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/**
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* @brief Parse addon comment in search of addon infos.
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*
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* like
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* \code
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* * Name: addon
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* * Description: An addon which plugs in
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* . * Version: 1.2.3
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* * Author: John <profile url>
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* * Author: Jane <email>
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* * Maintainer: Jess <email>
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* *
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* *\endcode
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* @param string $addon the name of the addon
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* @return array with the addon information
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*/
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public static function getInfo($addon)
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{
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$a = self::getApp();
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$info = [
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'name' => $addon,
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'description' => "",
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'author' => [],
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'maintainer' => [],
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'version' => "",
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'status' => ""
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];
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if (!is_file("addon/$addon/$addon.php")) {
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return $info;
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}
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$stamp1 = microtime(true);
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$f = file_get_contents("addon/$addon/$addon.php");
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$a->saveTimestamp($stamp1, "file");
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$r = preg_match("|/\*.*\*/|msU", $f, $m);
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if ($r) {
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$ll = explode("\n", $m[0]);
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foreach ($ll as $l) {
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$l = trim($l, "\t\n\r */");
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if ($l != "") {
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$addon_info = array_map("trim", explode(":", $l, 2));
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if (count($addon_info) < 2) {
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continue;
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}
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list($type, $v) = $addon_info;
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$type = strtolower($type);
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if ($type == "author" || $type == "maintainer") {
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$r = preg_match("|([^<]+)<([^>]+)>|", $v, $m);
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if ($r) {
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$info[$type][] = ['name' => $m[1], 'link' => $m[2]];
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} else {
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$info[$type][] = ['name' => $v];
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}
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} else {
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if (array_key_exists($type, $info)) {
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$info[$type] = $v;
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}
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}
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}
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}
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}
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return $info;
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}
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}
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