536 lines
13 KiB
PHP
536 lines
13 KiB
PHP
<?php
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/**
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* @file include/identity.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 uninstalls an addon.
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*
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* @param string $plugin name of the addon
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* @return boolean
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*/
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if (! function_exists('uninstall_plugin')){
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function uninstall_plugin($plugin){
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logger("Addons: uninstalling " . $plugin);
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q("DELETE FROM `addon` WHERE `name` = '%s' ",
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dbesc($plugin)
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);
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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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}}
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/**
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* @brief installs an addon.
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*
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* @param string $plugin name of the addon
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* @return bool
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*/
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if (! function_exists('install_plugin')){
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function install_plugin($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: 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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$plugin_admin = (function_exists($plugin."_plugin_admin")?1:0);
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$r = q("INSERT INTO `addon` (`name`, `installed`, `timestamp`, `plugin_admin`) VALUES ( '%s', 1, %d , %d ) ",
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dbesc($plugin),
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intval($t),
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$plugin_admin
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);
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// 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 installing " . $plugin);
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return false;
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}
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}}
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// reload all updated plugins
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if(! function_exists('reload_plugins')) {
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function reload_plugins() {
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$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['name'] == $pl) && ($i['timestamp'] != $t)) {
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logger('Reloading plugin: ' . $i['name']);
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@include_once($fname);
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if(function_exists($pl . '_uninstall')) {
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$func = $pl . '_uninstall';
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$func();
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}
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if(function_exists($pl . '_install')) {
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$func = $pl . '_install';
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$func();
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}
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q("UPDATE `addon` SET `timestamp` = %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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/**
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* @brief check if addon is enabled
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*
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* @param string $plugin
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* @return boolean
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*/
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function plugin_enabled($plugin) {
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$r = q("SELECT * FROM `addon` WHERE `installed` = 1 AND `name` = '%s'", $plugin);
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return((bool)(count($r) > 0));
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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 $priority A priority (defaults to 0)
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* @return mixed|bool
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*/
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if(! function_exists('register_hook')) {
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function register_hook($hook,$file,$function,$priority=0) {
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$r = q("SELECT * FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s' LIMIT 1",
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dbesc($hook),
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dbesc($file),
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dbesc($function)
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);
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if(count($r))
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return true;
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$r = q("INSERT INTO `hook` (`hook`, `file`, `function`, `priority`) VALUES ( '%s', '%s', '%s', '%s' ) ",
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dbesc($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 $function the name of the function that the hook called
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* @return array
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*/
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if(! function_exists('unregister_hook')) {
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function unregister_hook($hook,$file,$function) {
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$r = q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s'",
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dbesc($hook),
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dbesc($file),
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dbesc($function)
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);
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return $r;
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}}
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if(! function_exists('load_hooks')) {
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function load_hooks() {
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$a = get_app();
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$a->hooks = array();
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$r = q("SELECT * FROM `hook` WHERE 1 ORDER BY `priority` DESC, `file`");
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if(count($r)) {
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foreach($r as $rr) {
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if(! array_key_exists($rr['hook'],$a->hooks))
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$a->hooks[$rr['hook']] = array();
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$a->hooks[$rr['hook']][] = array($rr['file'],$rr['function']);
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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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if(! function_exists('call_hooks')) {
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function call_hooks($name, &$data = null) {
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$stamp1 = microtime(true);
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$a = get_app();
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#logger($name, LOGGER_ALL);
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if((is_array($a->hooks)) && (array_key_exists($name,$a->hooks))) {
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foreach($a->hooks[$name] as $hook) {
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// Don't run a theme's hook if the user isn't using the theme
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if(strpos($hook[0], 'view/theme/') !== false && strpos($hook[0], 'view/theme/'.current_theme()) === false)
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continue;
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@include_once($hook[0]);
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if(function_exists($hook[1])) {
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$func = $hook[1];
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//logger($name." => ".$hook[0].":".$func."()", LOGGER_DEBUG);
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$func($a,$data);
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}
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else {
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// remove orphan hooks
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q("DELETE FROM `hook` WHERE `hook` = '%s' AND `file` = '%s' AND `function` = '%s'",
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dbesc($name),
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dbesc($hook[0]),
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dbesc($hook[1])
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);
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}
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}
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}
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}}
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//check if an app_menu hook exist for plugin $name.
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//Return true if the plugin is an app
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if(! function_exists('plugin_is_app')) {
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function plugin_is_app($name) {
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$a = get_app();
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if(is_array($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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return false;
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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 $plugin the name of the plugin
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* @return array with the plugin information
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*/
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if (! function_exists('get_plugin_info')){
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function get_plugin_info($plugin){
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$a = get_app();
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$info=Array(
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'name' => $plugin,
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'description' => "",
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'author' => array(),
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'version' => "",
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'status' => ""
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);
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if (!is_file("addon/$plugin/$plugin.php")) return $info;
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$stamp1 = microtime(true);
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$f = file_get_contents("addon/$plugin/$plugin.php");
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$a->save_timestamp($stamp1, "file");
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$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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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'=>$v);
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}
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} else {
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if (array_key_exists($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 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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* *
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* \endcode
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* @param string $theme the name of the theme
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* @return array
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*/
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if (! function_exists('get_theme_info')){
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function get_theme_info($theme){
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$info=Array(
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'name' => $theme,
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'description' => "",
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'author' => array(),
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'maintainer' => array(),
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'version' => "",
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'credits' => "",
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'experimental' => false,
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'unsupported' => false
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);
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if(file_exists("view/theme/$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/theme.php")) return $info;
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$a = get_app();
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$stamp1 = microtime(true);
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$f = file_get_contents("view/theme/$theme/theme.php");
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$a->save_timestamp($stamp1, "file");
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$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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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/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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$a = get_app();
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$exts = array('.png','.jpg');
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foreach($exts as $ext) {
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if(file_exists('view/theme/' . $theme . '/screenshot' . $ext))
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return($a->get_baseurl() . '/view/theme/' . $theme . '/screenshot' . $ext);
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}
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return($a->get_baseurl() . '/images/blank.png');
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}
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// install and uninstall theme
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if (! function_exists('uninstall_theme')){
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function uninstall_theme($theme){
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logger("Addons: uninstalling theme " . $theme);
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@include_once("view/theme/$theme/theme.php");
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if(function_exists("{$theme}_uninstall")) {
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$func = "{$theme}_uninstall";
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$func();
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}
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}}
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if (! function_exists('install_theme')){
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function install_theme($theme) {
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// silently fail if theme was removed
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if(! file_exists("view/theme/$theme/theme.php"))
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return false;
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logger("Addons: installing theme $theme");
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@include_once("view/theme/$theme/theme.php");
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if(function_exists("{$theme}_install")) {
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$func = "{$theme}_install";
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$func();
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return true;
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}
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else {
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logger("Addons: FAILED installing theme $theme");
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return false;
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}
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}}
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// check service_class restrictions. If there are no service_classes defined, everything is allowed.
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// if $usage is supplied, we check against a maximum count and return true if the current usage is
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// less than the subscriber plan allows. Otherwise we return boolean true or false if the property
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// is allowed (or not) in this subscriber plan. An unset property for this service plan means
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// the property is allowed, so it is only necessary to provide negative properties for each plan,
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// or what the subscriber is not allowed to do.
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function service_class_allows($uid,$property,$usage = false) {
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if($uid == local_user()) {
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$service_class = $a->user['service_class'];
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}
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else {
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$r = q("SELECT `service_class` FROM `user` WHERE `uid` = %d LIMIT 1",
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intval($uid)
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);
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if($r !== false and count($r)) {
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$service_class = $r[0]['service_class'];
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}
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}
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if(! x($service_class))
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return true; // everything is allowed
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$arr = get_config('service_class',$service_class);
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if(! is_array($arr) || (! count($arr)))
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return true;
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if($usage === false)
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return ((x($arr[$property])) ? (bool) $arr['property'] : true);
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else {
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if(! array_key_exists($property,$arr))
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return true;
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return (((intval($usage)) < intval($arr[$property])) ? true : false);
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}
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}
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function service_class_fetch($uid,$property) {
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if($uid == local_user()) {
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$service_class = $a->user['service_class'];
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}
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else {
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$r = q("SELECT `service_class` FROM `user` WHERE `uid` = %d LIMIT 1",
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intval($uid)
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);
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if($r !== false and count($r)) {
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$service_class = $r[0]['service_class'];
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}
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}
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if(! x($service_class))
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return false; // everything is allowed
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$arr = get_config('service_class',$service_class);
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if(! is_array($arr) || (! count($arr)))
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return false;
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return((array_key_exists($property,$arr)) ? $arr[$property] : false);
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}
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function upgrade_link($bbcode = false) {
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$l = get_config('service_class','upgrade_link');
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if(! $l)
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return '';
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if($bbcode)
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$t = sprintf('[url=%s]' . t('Click here to upgrade.') . '[/url]', $l);
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else
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$t = sprintf('<a href="%s">' . t('Click here to upgrade.') . '</div>', $l);
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return $t;
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}
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function upgrade_message($bbcode = false) {
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$x = upgrade_link($bbcode);
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return t('This action exceeds the limits set by your subscription plan.') . (($x) ? ' ' . $x : '') ;
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}
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function upgrade_bool_message($bbcode = false) {
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$x = upgrade_link($bbcode);
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return t('This action is not available under your subscription plan.') . (($x) ? ' ' . $x : '') ;
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}
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