mirror of
https://github.com/YunoHost-Apps/hubzilla_ynh.git
synced 2024-09-03 19:26:21 +02:00
753 lines
18 KiB
PHP
Executable file
753 lines
18 KiB
PHP
Executable file
<?php
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/**
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* @file include/plugin.php
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*
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* @brief Some functions to handle addons and themes.
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*/
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/**
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* @brief unloads an addon.
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*
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* @param string $plugin name of the addon
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*/
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function unload_plugin($plugin){
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logger("Addons: unloading " . $plugin, LOGGER_DEBUG);
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@include_once('addon/' . $plugin . '/' . $plugin . '.php');
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if(function_exists($plugin . '_unload')) {
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$func = $plugin . '_unload';
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$func();
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}
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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 $plugin name of the addon
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* @return boolean
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*/
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function uninstall_plugin($plugin) {
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unload_plugin($plugin);
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if(! file_exists('addon/' . $plugin . '/' . $plugin . '.php'))
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return false;
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logger("Addons: uninstalling " . $plugin);
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//$t = @filemtime('addon/' . $plugin . '/' . $plugin . '.php');
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@include_once('addon/' . $plugin . '/' . $plugin . '.php');
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if(function_exists($plugin . '_uninstall')) {
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$func = $plugin . '_uninstall';
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$func();
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}
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q("DELETE FROM addon WHERE aname = '%s' ",
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dbesc($plugin)
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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 $plugin name of the addon
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* @return bool
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*/
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function install_plugin($plugin) {
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if(! file_exists('addon/' . $plugin . '/' . $plugin . '.php'))
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return false;
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logger("Addons: installing " . $plugin);
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$t = @filemtime('addon/' . $plugin . '/' . $plugin . '.php');
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@include_once('addon/' . $plugin . '/' . $plugin . '.php');
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if(function_exists($plugin . '_install')) {
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$func = $plugin . '_install';
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$func();
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}
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$plugin_admin = (function_exists($plugin . '_plugin_admin') ? 1 : 0);
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q("INSERT INTO addon (aname, installed, tstamp, plugin_admin) VALUES ( '%s', 1, %d , %d ) ",
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dbesc($plugin),
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intval($t),
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$plugin_admin
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);
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load_plugin($plugin);
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}
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/**
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* @brief loads an addon by it's name.
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*
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* @param string $plugin name of the addon
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* @return bool
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*/
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function load_plugin($plugin) {
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// silently fail if plugin was removed
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if(! file_exists('addon/' . $plugin . '/' . $plugin . '.php'))
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return false;
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logger("Addons: loading " . $plugin, LOGGER_DEBUG);
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//$t = @filemtime('addon/' . $plugin . '/' . $plugin . '.php');
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@include_once('addon/' . $plugin . '/' . $plugin . '.php');
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if(function_exists($plugin . '_load')) {
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$func = $plugin . '_load';
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$func();
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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/' . $plugin . '/.hidden')) {
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q("update addon set hidden = 1 where name = '%s'",
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dbesc($plugin)
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);
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}
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return true;
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}
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else {
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logger("Addons: FAILED loading " . $plugin);
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return false;
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}
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}
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function plugin_is_installed($name) {
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$r = q("select aname from addon where aname = '%s' and installed = 1 limit 1",
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dbesc($name)
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);
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if($r)
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return true;
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return false;
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}
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// reload all updated plugins
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function reload_plugins() {
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$plugins = get_config('system', 'addon');
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if(strlen($plugins)) {
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$r = q("SELECT * FROM addon WHERE installed = 1");
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if(count($r))
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$installed = $r;
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else
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$installed = array();
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$parr = explode(',', $plugins);
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if(count($parr)) {
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foreach($parr as $pl) {
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$pl = trim($pl);
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$fname = 'addon/' . $pl . '/' . $pl . '.php';
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if(file_exists($fname)) {
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$t = @filemtime($fname);
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foreach($installed as $i) {
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if(($i['aname'] == $pl) && ($i['tstamp'] != $t)) {
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logger('Reloading plugin: ' . $i['aname']);
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@include_once($fname);
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if(function_exists($pl . '_unload')) {
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$func = $pl . '_unload';
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$func();
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}
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if(function_exists($pl . '_load')) {
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$func = $pl . '_load';
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$func();
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}
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q("UPDATE addon SET tstamp = %d WHERE id = %d",
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intval($t),
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intval($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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function visible_plugin_list() {
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$r = q("select * from addon where hidden = 0 order by aname asc");
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return(($r) ? ids_to_array($r,'aname') : array());
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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 $priority A priority (defaults to 0)
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* @return mixed|bool
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*/
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function register_hook($hook, $file, $function, $priority = 0) {
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$r = q("SELECT * FROM hook WHERE hook = '%s' AND file = '%s' AND fn = '%s' LIMIT 1",
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dbesc($hook),
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dbesc($file),
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dbesc($function)
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);
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if($r)
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return true;
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$r = q("INSERT INTO hook (hook, file, fn, priority) VALUES ( '%s', '%s', '%s', '%s' )",
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dbesc($hook),
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dbesc($file),
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dbesc($function),
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dbesc($priority)
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);
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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 $function the name of the function that the hook called
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* @return array
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*/
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function unregister_hook($hook, $file, $function) {
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$r = q("DELETE FROM hook WHERE hook = '%s' AND file = '%s' AND fn = '%s'",
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dbesc($hook),
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dbesc($file),
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dbesc($function)
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);
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return $r;
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}
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//
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// It might not be obvious but themes can manually add hooks to the App::$hooks
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// array in their theme_init() and use this to customise the app behaviour.
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// UPDATE: use insert_hook($hookname,$function_name) to do this
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//
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function load_hooks() {
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App::$hooks = array();
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$r = q("SELECT * FROM hook WHERE true ORDER BY priority DESC");
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if($r) {
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foreach($r as $rr) {
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if(! array_key_exists($rr['hook'],App::$hooks))
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App::$hooks[$rr['hook']] = array();
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App::$hooks[$rr['hook']][] = array($rr['file'],$rr['fn'],$rr['priority'],$rr['hook_version']);
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}
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}
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//logger('hooks: ' . print_r(App::$hooks,true));
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}
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/**
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* @brief Inserts a hook into a page request.
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*
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* Insert a short-lived hook into the running page request.
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* Hooks are normally persistent so that they can be called
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* across asynchronous processes such as delivery and poll
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* processes.
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*
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* insert_hook lets you attach a hook callback immediately
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* which will not persist beyond the life of this page request
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* or the current process.
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*
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* @param string $hook
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* name of hook to attach callback
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* @param string $fn
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* function name of callback handler
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* @param int $version (optional) default 0
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* @param int $priority (optional) default 0
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*/
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function insert_hook($hook, $fn, $version = 0, $priority = 0) {
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if(! is_array(App::$hooks))
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App::$hooks = array();
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if(! array_key_exists($hook, App::$hooks))
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App::$hooks[$hook] = array();
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App::$hooks[$hook][] = array('', $fn, $priority, $version);
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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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function call_hooks($name, &$data = null) {
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$a = 0;
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if((is_array(App::$hooks)) && (array_key_exists($name, App::$hooks))) {
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foreach(App::$hooks[$name] as $hook) {
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$origfn = $hook[1];
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if($hook[0])
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@include_once($hook[0]);
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if(preg_match('|^a:[0-9]+:{.*}$|s', $hook[1])) {
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$hook[1] = unserialize($hook[1]);
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}
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elseif(strpos($hook[1],'::')) {
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// We shouldn't need to do this, but it appears that PHP
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// isn't able to directly execute a string variable with a class
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// method in the manner we are attempting it, so we'll
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// turn it into an array.
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$hook[1] = explode('::',$hook[1]);
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}
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if(is_callable($hook[1])) {
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$func = $hook[1];
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if($hook[3])
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$func($data);
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else
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$func($a, $data);
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}
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else {
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// Don't do any DB write calls if we're currently logging a possibly failed DB call.
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if(! DBA::$logging) {
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// The hook should be removed so we don't process it.
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q("DELETE FROM hook WHERE hook = '%s' AND file = '%s' AND fn = '%s'",
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dbesc($name),
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dbesc($hook[0]),
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dbesc($origfn)
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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 Parse plugin comment in search of plugin infos.
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*
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* like
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* \code
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* * Name: Plugin
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* * Description: A plugin 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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* *
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*\endcode
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* @param string $plugin the name of the plugin
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* @return array with the plugin information
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*/
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function get_plugin_info($plugin){
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$m = array();
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$info = array(
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'name' => $plugin,
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'description' => '',
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'author' => array(),
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'maintainer' => array(),
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'version' => '',
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'requires' => ''
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);
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if (!is_file("addon/$plugin/$plugin.php"))
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return $info;
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$f = file_get_contents("addon/$plugin/$plugin.php");
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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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list($k, $v) = array_map("trim", explode(":", $l, 2));
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$k = strtolower($k);
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if ($k == 'author' || $k == 'maintainer'){
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$r = preg_match("|([^<]+)<([^>]+)>|", $v, $m);
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if ($r) {
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$info[$k][] = array('name' => $m[1], 'link' => $m[2]);
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} else {
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$info[$k][] = array('name' => $v);
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}
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}
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else {
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$info[$k] = $v;
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}
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}
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}
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}
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return $info;
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}
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function check_plugin_versions($info) {
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if(! is_array($info))
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return true;
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if(array_key_exists('minversion',$info)) {
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if(! version_compare(STD_VERSION,trim($info['minversion']), '>=')) {
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logger('minversion limit: ' . $info['name'],LOGGER_NORMAL,LOG_WARNING);
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return false;
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}
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}
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if(array_key_exists('maxversion',$info)) {
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if(version_compare(STD_VERSION,trim($info['maxversion']), '>')) {
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logger('maxversion limit: ' . $info['name'],LOGGER_NORMAL,LOG_WARNING);
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return false;
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}
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}
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if(array_key_exists('minphpversion',$info)) {
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if(! version_compare(PHP_VERSION,trim($info['minphpversion']), '>=')) {
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logger('minphpversion limit: ' . $info['name'],LOGGER_NORMAL,LOG_WARNING);
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return false;
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}
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}
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if(array_key_exists('serverroles',$info)) {
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$role = \Zotlabs\Lib\System::get_server_role();
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if(! (
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stristr($info['serverroles'],'*')
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|| stristr($info['serverroles'],'any')
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|| stristr($info['serverroles'],$role))) {
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logger('serverrole limit: ' . $info['name'],LOGGER_NORMAL,LOG_WARNING);
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return false;
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}
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}
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if(array_key_exists('requires',$info)) {
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$arr = explode(',',$info['requires']);
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$found = true;
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if($arr) {
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foreach($arr as $test) {
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$test = trim($test);
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if(! $test)
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continue;
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if(strpos($test,'.')) {
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$conf = explode('.',$test);
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if(get_config(trim($conf[0]),trim($conf[1])))
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return true;
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else
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return false;
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}
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if(! in_array($test,App::$plugins))
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$found = false;
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}
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}
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if(! $found)
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return false;
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}
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return true;
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}
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/**
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* @brief Parse theme comment in search of theme infos.
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*
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* like
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* \code
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* * Name: My Theme
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* * Description: My Cool Theme
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* * Version: 1.2.3
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* * Author: John <profile url>
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* * Maintainer: Jane <profile url>
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* * Compat: Friendica [(version)], Red [(version)]
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* *
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* \endcode
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* @param string $theme the name of the theme
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* @return array
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*/
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function get_theme_info($theme){
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$m = array();
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$info = array(
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'name' => $theme,
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'description' => '',
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'author' => array(),
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'version' => '',
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'compat' => '',
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'credits' => '',
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'maintainer' => array(),
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'experimental' => false,
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'unsupported' => false
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);
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if(file_exists("view/theme/$theme/experimental"))
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$info['experimental'] = true;
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if(file_exists("view/theme/$theme/unsupported"))
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$info['unsupported'] = true;
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if (!is_file("view/theme/$theme/php/theme.php"))
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return $info;
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$f = file_get_contents("view/theme/$theme/php/theme.php");
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$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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list($k, $v) = array_map("trim", explode(":", $l, 2));
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$k = strtolower($k);
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if ($k == 'author'){
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$r = preg_match("|([^<]+)<([^>]+)>|", $v, $m);
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if ($r) {
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$info['author'][] = array('name' => $m[1], 'link' => $m[2]);
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} else {
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$info['author'][] = array('name' => $v);
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}
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}
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elseif ($k == 'maintainer'){
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$r = preg_match("|([^<]+)<([^>]+)>|", $v, $m);
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if ($r) {
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$info['maintainer'][] = array('name' => $m[1], 'link' => $m[2]);
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} else {
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$info['maintainer'][] = array('name' => $v);
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}
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} else {
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if (array_key_exists($k, $info)){
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$info[$k] = $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 $info;
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}
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/**
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* @brief Returns the theme's screenshot.
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*
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* The screenshot is expected as view/theme/$theme/img/screenshot.[png|jpg].
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*
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* @param sring $theme The name of the theme
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* @return string
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*/
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function get_theme_screenshot($theme) {
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$exts = array('.png', '.jpg');
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foreach($exts as $ext) {
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if(file_exists('view/theme/' . $theme . '/img/screenshot' . $ext))
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return(z_root() . '/view/theme/' . $theme . '/img/screenshot' . $ext);
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}
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return(z_root() . '/images/blank.png');
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}
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/**
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* @brief add CSS to \<head\>
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*
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* @param string $src
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* @param string $media change media attribute (default to 'screen')
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*/
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function head_add_css($src, $media = 'screen') {
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App::$css_sources[] = array($src, $media);
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}
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function head_remove_css($src, $media = 'screen') {
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$index = array_search(array($src, $media), App::$css_sources);
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if ($index !== false)
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unset(App::$css_sources[$index]);
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}
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function head_get_css() {
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$str = '';
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$sources = App::$css_sources;
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if (count($sources)) {
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foreach ($sources as $source)
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$str .= format_css_if_exists($source);
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}
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return $str;
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}
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function format_css_if_exists($source) {
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$path_prefix = script_path() . '/';
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if (strpos($source[0], '/') !== false) {
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// The source is a URL
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$path = $source[0];
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// If the url starts with // then it's an absolute URL
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if($source[0][0] === '/' && $source[0][1] === '/') $path_prefix = '';
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} else {
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// It's a file from the theme
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$path = theme_include($source[0]);
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}
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if($path) {
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$qstring = ((parse_url($path, PHP_URL_QUERY)) ? '&' : '?') . 'v=' . STD_VERSION;
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return '<link rel="stylesheet" href="' . $path_prefix . $path . $qstring . '" type="text/css" media="' . $source[1] . '">' . "\r\n";
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}
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}
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/*
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* This basically calculates the baseurl. We have other functions to do that, but
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* there was an issue with script paths and mixed-content whose details are arcane
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* and perhaps lost in the message archives. The short answer is that we're ignoring
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* the URL which we are "supposed" to use, and generating script paths relative to
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* the URL which we are currently using; in order to ensure they are found and aren't
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* blocked due to mixed content issues.
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*/
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function script_path() {
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if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
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$scheme = 'https';
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elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
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$scheme = 'https';
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elseif (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https' || !empty($_SERVER['HTTP_X_FORWARDED_SSL']) && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on')
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$scheme = 'https';
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else
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$scheme = 'http';
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// Some proxy setups may require using http_host
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if(intval(App::$config['system']['script_path_use_http_host']))
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$server_var = 'HTTP_HOST';
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else
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$server_var = 'SERVER_NAME';
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if(x($_SERVER,$server_var)) {
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$hostname = $_SERVER[$server_var];
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}
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else {
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return z_root();
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}
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return $scheme . '://' . $hostname;
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}
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function head_add_js($src, $priority = 0) {
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if(! is_array(App::$js_sources[$priority]))
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App::$js_sources[$priority] = array();
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App::$js_sources[$priority][] = $src;
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}
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function head_remove_js($src, $priority = 0) {
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$index = array_search($src, App::$js_sources[$priority]);
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if($index !== false)
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unset(App::$js_sources[$priority][$index]);
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}
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// We should probably try to register main.js with a high priority, but currently we handle it
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// separately and put it at the end of the html head block in case any other javascript is
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// added outside the head_add_js construct.
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function head_get_js() {
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$str = '';
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if(App::$js_sources) {
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ksort(App::$js_sources,SORT_NUMERIC);
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foreach(App::$js_sources as $sources) {
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if(count($sources)) {
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foreach($sources as $source) {
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if($src === 'main.js')
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continue;
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$str .= format_js_if_exists($source);
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}
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}
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}
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}
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return $str;
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}
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function head_get_main_js() {
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$str = '';
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$sources = array('main.js');
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if(count($sources))
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foreach($sources as $source)
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$str .= format_js_if_exists($source,true);
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return $str;
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}
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function format_js_if_exists($source) {
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$path_prefix = script_path() . '/';
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if(strpos($source,'/') !== false) {
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// The source is a URL
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$path = $source;
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// If the url starts with // then it's an absolute URL
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if($source[0] === '/' && $source[1] === '/') $path_prefix = '';
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} else {
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// It's a file from the theme
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$path = theme_include($source);
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}
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if($path) {
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$qstring = ((parse_url($path, PHP_URL_QUERY)) ? '&' : '?') . 'v=' . STD_VERSION;
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return '<script src="' . $path_prefix . $path . $qstring . '" ></script>' . "\r\n" ;
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}
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}
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function theme_include($file, $root = '') {
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// Make sure $root ends with a slash / if it's not blank
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if($root !== '' && $root[strlen($root)-1] !== '/')
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$root = $root . '/';
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$theme_info = App::$theme_info;
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if(array_key_exists('extends',$theme_info))
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$parent = $theme_info['extends'];
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else
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$parent = 'NOPATH';
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$theme = Zotlabs\Render\Theme::current();
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$thname = $theme[0];
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$ext = substr($file,strrpos($file,'.')+1);
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$paths = array(
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"{$root}view/theme/$thname/$ext/$file",
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"{$root}view/theme/$parent/$ext/$file",
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"{$root}view/site/$ext/$file",
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"{$root}view/$ext/$file",
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);
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foreach($paths as $p) {
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// strpos() is faster than strstr when checking if one string is in another (http://php.net/manual/en/function.strstr.php)
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if(strpos($p,'NOPATH') !== false)
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continue;
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if(file_exists($p))
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return $p;
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}
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return '';
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}
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function get_intltext_template($s, $root = '') {
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$t = App::template_engine();
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$template = $t->get_intltext_template($s, $root);
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return $template;
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}
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function get_markup_template($s, $root = '') {
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$t = App::template_engine();
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$template = $t->get_markup_template($s, $root);
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return $template;
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}
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function folder_exists($folder)
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{
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// Get canonicalized absolute pathname
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$path = realpath($folder);
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// If it exist, check if it's a directory
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return (($path !== false) && is_dir($path)) ? $path : false;
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}
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