Correct some documentation errors for Doxygen and add more comments. Document some undefined variables with @FIXME.
		
			
				
	
	
		
			1101 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			PHP
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			1101 lines
		
	
	
		
			26 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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| 
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| /**
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|  * @brief Handle errors in plugin calls.
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|  *
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|  * @param string $plugin name of the addon
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|  * @param string $notice UI visible text of error
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|  * @param string $log technical error message for logging
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|  * @param bool $uninstall (optional) default false
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|  *   uninstall plugin on error
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|  */
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| function handleerrors_plugin($plugin, $notice, $log, $uninstall = false){
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| 	logger("Addons: [" . $plugin . "] Error: ".$log, LOGGER_ERROR);
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| 	if ($notice != '') {
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| 			notice("[" . $plugin . "] Error: ".$notice, LOGGER_ERROR);
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| 	}
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| 
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| 	if ($uninstall) {
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| 		$idx = array_search($plugin, \App::$plugins);
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| 		unset(\App::$plugins[$idx]);
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| 		uninstall_plugin($plugin);
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| 		set_config("system", "addon", implode(", ", \App::$plugins));
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| 	}
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| }
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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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| 
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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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| 		try {
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| 			$func();
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| 		} catch (Exception $e) {
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| 			handleerrors_plugin($plugin,"Unable to unload.",$e->getMessage());
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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 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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| 
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| 	unload_plugin($plugin);
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| 
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| 	if(! file_exists('addon/' . $plugin . '/' . $plugin . '.php')) {
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| 		q("DELETE FROM addon WHERE aname = '%s' ",
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| 			dbesc($plugin)
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| 		);
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| 		return false;
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| 	}
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| 
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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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| 		try {
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| 			$func();
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| 		} catch (Exception $e) {
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| 			handleerrors_plugin($plugin,"Unable to uninstall.","Unable to run _uninstall : ".$e->getMessage());
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| 		}
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| 	}
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| 
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| 	q("DELETE FROM addon WHERE aname = '%s' ",
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| 		dbesc($plugin)
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| 	);
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| 
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| }
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| 
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| /**
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|  * @brief Installs an addon.
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|  *
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|  * This function is called once to install the addon (either from the cli or via
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|  * the web admin). This will also call load_plugin() once.
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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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| 
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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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| 		try {
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| 			$func();
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| 		} catch (Exception $e) {
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| 			handleerrors_plugin($plugin,"Install failed.","Install failed : ".$e->getMessage());
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| 			return;
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| 		}
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| 	}
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| 
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| 	$plugin_admin = (function_exists($plugin . '_plugin_admin') ? 1 : 0);
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| 
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| 	$d = q("select * from addon where aname = '%s' limit 1",
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| 		dbesc($plugin)
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| 	);
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| 	if(! $d) {
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| 		q("INSERT INTO addon (aname, installed, tstamp, plugin_admin) VALUES ( '%s', 1, %d , %d ) ",
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| 			dbesc($plugin),
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| 			intval($t),
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| 			$plugin_admin
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| 		);
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| 	}
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| 
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| 	load_plugin($plugin);
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| }
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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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| 
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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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| 		try {
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| 			$func();
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| 		} catch (Exception $e) {
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| 			handleerrors_plugin($plugin,"Unable to load.","FAILED loading : ".$e->getMessage(),true);
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| 			return;
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| 		}
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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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| 
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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 . " (missing _load function)");
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| 		return false;
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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 installed.
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|  *
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|  * @param string $name
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|  * @return boolean
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|  */
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| function plugin_is_installed($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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| 
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| 	return false;
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| }
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| 
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| 
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| /**
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|  * @brief Reload all updated plugins.
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|  */
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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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| 
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| 		$parr = explode(',', $plugins);
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| 
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| 		if(count($parr)) {
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| 			foreach($parr as $pl) {
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| 				$pl = trim($pl);
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| 
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| 				$fname = 'addon/' . $pl . '/' . $pl . '.php';
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| 
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| 				if(file_exists($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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| 
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| 							if(function_exists($pl . '_unload')) {
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| 								$func = $pl . '_unload';
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| 								try {
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| 										$func();
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| 								} catch (Exception $e) {
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| 									handleerrors_plugin($pl, '', 'UNLOAD FAILED (uninstalling) : ' . $e->getMessage(),true);
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| 									continue;
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| 								}
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| 							}
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| 							if(function_exists($pl . '_load')) {
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| 								$func = $pl . '_load';
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| 								try {
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| 										$func();
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| 								} catch (Exception $e) {
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| 									handleerrors_plugin($pl, '', 'LOAD FAILED (uninstalling): ' . $e->getMessage(),true);
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| 									continue;
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| 								}
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| 							}
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| 							q("UPDATE addon SET tstamp = %d WHERE id = %d",
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| 								intval($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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| 
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| 
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| function plugins_installed_list() {
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| 
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| 	$r = q("select * from addon where installed = 1 order by aname asc");
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| 	return(($r) ? ids_to_array($r,'aname') : []);
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| }
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| 
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| 
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| function plugins_sync() {
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| 
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| 	/**
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| 	 *
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| 	 * Synchronise plugins:
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| 	 *
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| 	 * App::$config['system']['addon'] contains a comma-separated list of names
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| 	 * of plugins/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 unload 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 plugin 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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| 
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| 	$installed = plugins_installed_list();
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| 
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| 	$plugins = get_config('system', 'addon', '');
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| 
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| 	$plugins_arr = explode(',', $plugins);
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| 
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| 	// array_trim is in include/text.php
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| 
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| 	if(! array_walk($plugins_arr,'array_trim'))
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| 		return;
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| 
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| 	App::$plugins = $plugins_arr;
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| 
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| 	$installed_arr = [];
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| 
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| 	if(count($installed)) {
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| 		foreach($installed as $i) {
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| 			if(! in_array($i, $plugins_arr)) {
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| 				unload_plugin($i);
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| 			}
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| 			else {
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| 				$installed_arr[] = $i;
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| 			}
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| 		}
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| 	}
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| 
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| 	if(count($plugins_arr)) {
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| 		foreach($plugins_arr as $p) {
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| 			if(! in_array($p, $installed_arr)) {
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| 				load_plugin($p);
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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 Get a list of non hidden addons.
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|  *
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|  * @return array
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|  */
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| function visible_plugin_list() {
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| 
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| 	$r = q("select * from addon where hidden = 0 order by aname asc");
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| 	$x = (($r) ? ids_to_array($r,'aname') : array());
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| 	$y = [];
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| 	if($x) {
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| 		foreach($x as $xv) {
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| 			if(is_dir('addon/' . $xv)) {
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| 				$y[] = $xv;
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| 			}
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| 		}
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| 	}
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| 	return $y;
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| }
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| 
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| 
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| /**
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|  * @brief Registers a hook.
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|  *
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|  * @see ::Zotlabs::Extend::Hook::register()
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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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| 
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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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| 
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| 	return $r;
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| }
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| 
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| 
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| /**
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|  * @brief unregisters a hook.
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|  *
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|  * @see ::Zotlabs::Extend::Hook::unregister
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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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| 
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| 	return $r;
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| }
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| 
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| /**
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|  * @brief loads all active hooks into memory
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|  * alters: App::$hooks
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|  * Called during initialisation
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|  * Duplicated hooks are removed and the duplicates ignored
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|  *
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|  * It might not be obvious but themes can manually add hooks to the App::$hooks
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|  * array in their theme_init() and use this to customise the app behaviour.
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|  * use insert_hook($hookname,$function_name) to do this.
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|  */
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| function load_hooks() {
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| 
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| 	App::$hooks = [];
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| 
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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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| 
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| 		foreach($r as $rv) {
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| 			$duplicated = false;
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| 			if(! array_key_exists($rv['hook'],App::$hooks)) {
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| 				App::$hooks[$rv['hook']] = [];
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| 			}
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| 			else {
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| 				foreach(App::$hooks[$rv['hook']] as $h) {
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| 					if($h[0] === $rv['file'] && $h[1] === $rv['fn']) {
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| 						$duplicated = true;
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| 						q("delete from hook where id = %d",
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| 							intval($rv['id'])
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| 						);
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| 						logger('duplicate hook ' . $h[1] . ' removed');
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| 					}
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| 				}
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| 			}
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| 			if(! $duplicated) {
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| 				App::$hooks[$rv['hook']][] = [ $rv['file'], $rv['fn'], $rv['priority'], $rv['hook_version']];
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| 			}
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| 		}
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| 	}
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| 	//	logger('hooks: ' . print_r(App::$hooks,true));
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| }
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| 
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| /**
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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, $priority = 0) {
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| 
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| 	if(! is_array(App::$hooks))
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| 		App::$hooks = array();
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| 
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| 	if(! array_key_exists($hook, App::$hooks))
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| 		App::$hooks[$hook] = array();
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| 
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| 	App::$hooks[$hook][] = array('', $fn, $priority, $version);
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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
 | |
|  * the provided data.
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|  *
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|  * @param string $name of the hook to call
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|  * @param[in,out] string|array &$data to transmit to the callback handler
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|  */
 | |
| function call_hooks($name, &$data = null) {
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| 	$a = 0;
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| 
 | |
| 	if (isset(App::$hooks[$name])) {
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| 		foreach(App::$hooks[$name] as $hook) {
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| 
 | |
| 			if ($name != 'permit_hook') { // avoid looping
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| 				$checkhook = [
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|  						'name'=>$name,
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| 	 					'hook'=>$hook,
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| 						'data'=>$data,
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| 						// Note: Since PHP uses COPY-ON-WRITE
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| 						// for variables, there is no cost to
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| 						// passing the $data structure (unless
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| 						// the permit_hook processors change the
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| 						// information it contains.
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|  						'permit'=>true
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|  				];
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|  				call_hooks('permit_hook',$checkhook);
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|  				if (!$checkhook['permit']) {
 | |
|  					continue;
 | |
|  				}
 | |
| 				$data = $checkhook['data'];
 | |
| 			}
 | |
| 			$origfn = $hook[1];
 | |
| 			if($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]);
 | |
| 			}
 | |
| 
 | |
| 			if(is_callable($hook[1])) {
 | |
| 				$func = $hook[1];
 | |
| 				if($hook[3])
 | |
| 					$func($data);
 | |
| 				else
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| 					$func($a, $data);
 | |
| 			}
 | |
| 			else {
 | |
| 
 | |
| 				// Don't do any DB write calls if we're currently logging a possibly failed DB call.
 | |
| 				if(! DBA::$logging) {
 | |
| 					// The hook should be removed so we don't process it.
 | |
| 					q("DELETE FROM hook WHERE hook = '%s' AND file = '%s' AND fn = '%s'",
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| 						dbesc($name),
 | |
| 						dbesc($hook[0]),
 | |
| 						dbesc($origfn)
 | |
| 					);
 | |
| 				}
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| }
 | |
| 
 | |
| 
 | |
| /**
 | |
|  * @brief Parse plugin comment in search of plugin infos.
 | |
|  *
 | |
|  * like
 | |
|  * \code
 | |
|  *   * Name: Plugin
 | |
|  *   * Description: A plugin which plugs in
 | |
|  *   * Version: 1.2.3
 | |
|  *   * Author: John <profile url>
 | |
|  *   * Author: Jane <email>
 | |
|  *   *
 | |
|  *\endcode
 | |
|  * @param string $plugin the name of the plugin
 | |
|  * @return array with the plugin information
 | |
|  */
 | |
| function get_plugin_info($plugin){
 | |
| 	$m = array();
 | |
| 	$info = array(
 | |
| 		'name' => $plugin,
 | |
| 		'description' => '',
 | |
| 		'author' => array(),
 | |
| 		'maintainer' => array(),
 | |
| 		'version' => '',
 | |
| 		'requires' => ''
 | |
| 	);
 | |
| 
 | |
| 	if (!is_file("addon/$plugin/$plugin.php"))
 | |
| 		return $info;
 | |
| 
 | |
| 	$f = file_get_contents("addon/$plugin/$plugin.php");
 | |
| 	$f = escape_tags($f);
 | |
| 	$r = preg_match("|/\*.*\*/|msU", $f, $m);
 | |
| 
 | |
| 	if ($r){
 | |
| 		$ll = explode("\n", $m[0]);
 | |
| 		foreach( $ll as $l ) {
 | |
| 			$l = trim($l, "\t\n\r */");
 | |
| 			if ($l != ""){
 | |
| 				list($k, $v) = array_map("trim", explode(":", $l, 2));
 | |
| 				$k = strtolower($k);
 | |
| 				if ($k == 'author' || $k == 'maintainer'){
 | |
| 					$r = preg_match("|([^<]+)<([^>]+)>|", $v, $m);
 | |
| 					if ($r) {
 | |
| 						$info[$k][] = array('name' => $m[1], 'link' => $m[2]);
 | |
| 					} else {
 | |
| 						$info[$k][] = array('name' => $v);
 | |
| 					}
 | |
| 				}
 | |
| 				else {
 | |
| 					$info[$k] = $v;
 | |
| 				}
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	return $info;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * @brief Parse widget comment in search of widget info.
 | |
|  *
 | |
|  * like
 | |
|  * \code
 | |
|  *   * Name: MyWidget
 | |
|  *   * Description: A widget
 | |
|  *   * Version: 1.2.3
 | |
|  *   * Author: John <profile url>
 | |
|  *   * Author: Jane <email>
 | |
|  *   *
 | |
|  *\endcode
 | |
|  * @param string $widget the name of the widget
 | |
|  * @return array with the information
 | |
|  */
 | |
| function get_widget_info($widget){
 | |
| 	$m = array();
 | |
| 	$info = array(
 | |
| 		'name' => $widget,
 | |
| 		'description' => '',
 | |
| 		'author' => array(),
 | |
| 		'maintainer' => array(),
 | |
| 		'version' => '',
 | |
| 		'requires' => ''
 | |
| 	);
 | |
| 
 | |
| 	$ucwidget = ucfirst($widget);
 | |
| 
 | |
| 	$checkpaths = [
 | |
| 		"Zotlabs/SiteWidget/$ucwidget.php",
 | |
| 		"Zotlabs/Widget/$ucwidget.php",
 | |
| 		"addon/$ucwidget/$ucwidget.php",
 | |
| 		"addon/$widget.php"
 | |
| 	];
 | |
| 
 | |
| 	$widget_found = false;
 | |
| 
 | |
| 	foreach ($checkpaths as $path) {
 | |
| 		if (is_file($path)) {
 | |
| 			$widget_found = true;
 | |
| 			$f = file_get_contents($path);
 | |
| 			break;
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	if(! ($widget_found && $f))
 | |
| 		return $info;
 | |
| 
 | |
| 	$f = escape_tags($f);
 | |
| 	$r = preg_match("|/\*.*\*/|msU", $f, $m);
 | |
| 
 | |
| 	if ($r) {
 | |
| 		$ll = explode("\n", $m[0]);
 | |
| 		foreach( $ll as $l ) {
 | |
| 			$l = trim($l, "\t\n\r */");
 | |
| 			if ($l != ""){
 | |
| 				list($k, $v) = array_map("trim", explode(":", $l, 2));
 | |
| 				$k = strtolower($k);
 | |
| 				if ($k == 'author' || $k == 'maintainer'){
 | |
| 					$r = preg_match("|([^<]+)<([^>]+)>|", $v, $m);
 | |
| 					if ($r) {
 | |
| 						$info[$k][] = array('name' => $m[1], 'link' => $m[2]);
 | |
| 					} else {
 | |
| 						$info[$k][] = array('name' => $v);
 | |
| 					}
 | |
| 				}
 | |
| 				else {
 | |
| 					$info[$k] = $v;
 | |
| 				}
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	return $info;
 | |
| }
 | |
| 
 | |
| 
 | |
| function check_plugin_versions($info) {
 | |
| 
 | |
| 	if(! is_array($info))
 | |
| 		return true;
 | |
| 
 | |
| 	if(array_key_exists('minversion',$info)) {
 | |
| 		if(! version_compare(STD_VERSION,trim($info['minversion']), '>=')) {
 | |
| 			logger('minversion limit: ' . $info['name'],LOGGER_NORMAL,LOG_WARNING);
 | |
| 			return false;
 | |
| 		}
 | |
| 	}
 | |
| 	if(array_key_exists('maxversion',$info)) {
 | |
| 		if(version_compare(STD_VERSION,trim($info['maxversion']), '>')) {
 | |
| 			logger('maxversion limit: ' . $info['name'],LOGGER_NORMAL,LOG_WARNING);
 | |
| 			return false;
 | |
| 		}
 | |
| 	}
 | |
| 	if(array_key_exists('minphpversion',$info)) {
 | |
| 		if(! version_compare(PHP_VERSION,trim($info['minphpversion']), '>=')) {
 | |
| 			logger('minphpversion limit: ' . $info['name'],LOGGER_NORMAL,LOG_WARNING);
 | |
| 			return false;
 | |
| 		}
 | |
| 	}
 | |
| 	if(array_key_exists('serverroles',$info)) {
 | |
| 		$role = \Zotlabs\Lib\System::get_server_role();
 | |
| 		if(! (
 | |
| 			stristr($info['serverroles'],'*')
 | |
| 			|| stristr($info['serverroles'],'any')
 | |
| 			|| stristr($info['serverroles'],$role))) {
 | |
| 			logger('serverrole limit: ' . $info['name'],LOGGER_NORMAL,LOG_WARNING);
 | |
| 
 | |
| 			return false;
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 
 | |
| 	if(array_key_exists('requires',$info)) {
 | |
| 		$arr = explode(',',$info['requires']);
 | |
| 		$found = true;
 | |
| 		if($arr) {
 | |
| 			foreach($arr as $test) {
 | |
| 				$test = trim($test);
 | |
| 				if(! $test)
 | |
| 					continue;
 | |
| 				if(strpos($test,'.')) {
 | |
| 					$conf = explode('.',$test);
 | |
| 					if(get_config(trim($conf[0]),trim($conf[1])))
 | |
| 						return true;
 | |
| 					else
 | |
| 						return false;
 | |
| 				}
 | |
| 				if(! in_array($test,App::$plugins))
 | |
| 					$found = false;
 | |
| 			}
 | |
| 		}
 | |
| 		if(! $found)
 | |
| 			return false;
 | |
| 	}
 | |
| 
 | |
| 	return true;
 | |
| }
 | |
| 
 | |
| 
 | |
| /**
 | |
|  * @brief Parse theme comment in search of theme infos.
 | |
|  *
 | |
|  * like
 | |
|  * \code
 | |
|  *   * Name: My Theme
 | |
|  *   * Description: My Cool Theme
 | |
|  *   * Version: 1.2.3
 | |
|  *   * Author: John <profile url>
 | |
|  *   * Maintainer: Jane <profile url>
 | |
|  *   * Compat: Friendica [(version)], Red [(version)]
 | |
|  *   *
 | |
|  * \endcode
 | |
|  * @param string $theme the name of the theme
 | |
|  * @return array
 | |
|  */
 | |
| function get_theme_info($theme){
 | |
| 	$m = array();
 | |
| 	$info = array(
 | |
| 		'name' => $theme,
 | |
| 		'description' => '',
 | |
| 		'author' => array(),
 | |
| 		'version' => '',
 | |
| 		'minversion' => STD_VERSION,
 | |
| 		'maxversion' => STD_VERSION,
 | |
| 		'compat' => '',
 | |
| 		'credits' => '',
 | |
| 		'maintainer' => array(),
 | |
| 		'experimental' => false,
 | |
| 		'unsupported' => false
 | |
| 	);
 | |
| 
 | |
| 	if(file_exists("view/theme/$theme/experimental"))
 | |
| 		$info['experimental'] = true;
 | |
| 
 | |
| 	if(file_exists("view/theme/$theme/unsupported"))
 | |
| 		$info['unsupported'] = true;
 | |
| 
 | |
| 	if (!is_file("view/theme/$theme/php/theme.php"))
 | |
| 		return $info;
 | |
| 
 | |
| 	$f = file_get_contents("view/theme/$theme/php/theme.php");
 | |
| 	$r = preg_match("|/\*.*\*/|msU", $f, $m);
 | |
| 
 | |
| 	if ($r){
 | |
| 		$ll = explode("\n", $m[0]);
 | |
| 		foreach( $ll as $l ) {
 | |
| 			$l = trim($l, "\t\n\r */");
 | |
| 			if ($l != ""){
 | |
| 				list($k, $v) = array_map("trim", explode(":", $l, 2));
 | |
| 				$k = strtolower($k);
 | |
| 				if ($k == 'author'){
 | |
| 					$r = preg_match("|([^<]+)<([^>]+)>|", $v, $m);
 | |
| 					if ($r) {
 | |
| 						$info['author'][] = array('name' => $m[1], 'link' => $m[2]);
 | |
| 					} else {
 | |
| 						$info['author'][] = array('name' => $v);
 | |
| 					}
 | |
| 				}
 | |
| 				elseif ($k == 'maintainer'){
 | |
| 					$r = preg_match("|([^<]+)<([^>]+)>|", $v, $m);
 | |
| 					if ($r) {
 | |
| 						$info['maintainer'][] = array('name' => $m[1], 'link' => $m[2]);
 | |
| 					} else {
 | |
| 						$info['maintainer'][] = array('name' => $v);
 | |
| 					}
 | |
| 				} else {
 | |
| 					if (array_key_exists($k, $info)){
 | |
| 						$info[$k] = $v;
 | |
| 					}
 | |
| 				}
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	return $info;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * @brief Returns the theme's screenshot.
 | |
|  *
 | |
|  * The screenshot is expected as view/theme/$theme/img/screenshot.[png|jpg].
 | |
|  *
 | |
|  * @param string $theme The name of the theme
 | |
|  * @return string
 | |
|  */
 | |
| function get_theme_screenshot($theme) {
 | |
| 
 | |
| 	$exts = array('.png', '.jpg');
 | |
| 	foreach($exts as $ext) {
 | |
| 		if(file_exists('view/theme/' . $theme . '/img/screenshot' . $ext))
 | |
| 			return(z_root() . '/view/theme/' . $theme . '/img/screenshot' . $ext);
 | |
| 	}
 | |
| 
 | |
| 	return(z_root() . '/images/blank.png');
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * @brief add CSS to \<head\>
 | |
|  *
 | |
|  * @param string $src
 | |
|  * @param string $media change media attribute (default to 'screen')
 | |
|  */
 | |
| function head_add_css($src, $media = 'screen') {
 | |
| 	App::$css_sources[] = array($src, $media);
 | |
| }
 | |
| 
 | |
| function head_remove_css($src, $media = 'screen') {
 | |
| 
 | |
| 	$index = array_search(array($src, $media), App::$css_sources);
 | |
| 	if($index !== false)
 | |
| 		unset(App::$css_sources[$index]);
 | |
| }
 | |
| 
 | |
| function head_get_css() {
 | |
| 	$str = '';
 | |
| 	$sources = App::$css_sources;
 | |
| 	if(count($sources)) {
 | |
| 		foreach($sources as $source)
 | |
| 			$str .= format_css_if_exists($source);
 | |
| 	}
 | |
| 
 | |
| 	return $str;
 | |
| }
 | |
| 
 | |
| function head_add_link($arr) {
 | |
| 	if($arr) {
 | |
| 		App::$linkrel[] = $arr;
 | |
| 	}
 | |
| }
 | |
| 
 | |
| function head_get_links() {
 | |
| 	$str = '';
 | |
| 	$sources = App::$linkrel;
 | |
| 	if(count($sources)) {
 | |
| 		foreach($sources as $source) {
 | |
| 			if(is_array($source) && count($source)) {
 | |
| 				$str .= '<link';
 | |
| 				foreach($source as $k => $v) {
 | |
| 					$str .= ' ' . $k . '="' . $v . '"';
 | |
| 				}
 | |
| 				$str .= ' />' . "\r\n";
 | |
| 
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	return $str;
 | |
| }
 | |
| 
 | |
| 
 | |
| function format_css_if_exists($source) {
 | |
| 
 | |
| 	// script_path() returns https://yoursite.tld
 | |
| 
 | |
| 	$path_prefix = script_path();
 | |
| 
 | |
| 	$script = $source[0];
 | |
| 
 | |
| 	if(strpos($script, '/') !== false) {
 | |
| 		// The script is a path relative to the server root
 | |
| 		$path = $script;
 | |
| 		// If the url starts with // then it's an absolute URL
 | |
| 		if(substr($script,0,2) === '//') {
 | |
| 			$path_prefix = '';
 | |
| 		}
 | |
| 	} else {
 | |
| 		// It's a file from the theme
 | |
| 		$path = '/' . theme_include($script);
 | |
| 	}
 | |
| 
 | |
| 	if($path) {
 | |
| 		$qstring = ((parse_url($path, PHP_URL_QUERY)) ? '&' : '?') . 'v=' . STD_VERSION;
 | |
| 		return '<link rel="stylesheet" href="' . $path_prefix . $path . $qstring . '" type="text/css" media="' . $source[1] . '">' . "\r\n";
 | |
| 	}
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * This basically calculates the baseurl. We have other functions to do that, but
 | |
|  * there was an issue with script paths and mixed-content whose details are arcane
 | |
|  * and perhaps lost in the message archives. The short answer is that we're ignoring
 | |
|  * the URL which we are "supposed" to use, and generating script paths relative to
 | |
|  * the URL which we are currently using; in order to ensure they are found and aren't
 | |
|  * blocked due to mixed content issues.
 | |
|  *
 | |
|  * @return string
 | |
|  */
 | |
| function script_path() {
 | |
| 	if(x($_SERVER,'HTTPS') && $_SERVER['HTTPS'])
 | |
| 		$scheme = 'https';
 | |
| 	elseif(x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443))
 | |
| 		$scheme = 'https';
 | |
| 	elseif (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https' || !empty($_SERVER['HTTP_X_FORWARDED_SSL']) && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on')
 | |
| 		$scheme = 'https';
 | |
| 	else
 | |
| 		$scheme = 'http';
 | |
| 
 | |
| 	// Some proxy setups may require using http_host
 | |
| 
 | |
| 	if(intval(App::$config['system']['script_path_use_http_host']))
 | |
| 		$server_var = 'HTTP_HOST';
 | |
| 	else
 | |
| 		$server_var = 'SERVER_NAME';
 | |
| 
 | |
| 
 | |
| 	if(x($_SERVER,$server_var)) {
 | |
| 		$hostname = $_SERVER[$server_var];
 | |
| 	}
 | |
| 	else {
 | |
| 		return z_root();
 | |
| 	}
 | |
| 
 | |
| 	return $scheme . '://' . $hostname;
 | |
| }
 | |
| 
 | |
| function head_add_js($src, $priority = 0) {
 | |
| 	if(! is_array(App::$js_sources[$priority]))
 | |
| 		App::$js_sources[$priority] = array();
 | |
| 	App::$js_sources[$priority][] = $src;
 | |
| }
 | |
| 
 | |
| function head_remove_js($src, $priority = 0) {
 | |
| 
 | |
| 	$index = array_search($src, App::$js_sources[$priority]);
 | |
| 	if($index !== false)
 | |
| 		unset(App::$js_sources[$priority][$index]);
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * We should probably try to register main.js with a high priority, but currently
 | |
|  * we handle it separately and put it at the end of the html head block in case
 | |
|  * any other javascript is added outside the head_add_js construct.
 | |
|  *
 | |
|  * @return string
 | |
|  */
 | |
| function head_get_js() {
 | |
| 
 | |
| 	$str = '';
 | |
| 	if(App::$js_sources) {
 | |
| 		ksort(App::$js_sources,SORT_NUMERIC);
 | |
| 		foreach(App::$js_sources as $sources) {
 | |
| 			if(count($sources)) {
 | |
| 				foreach($sources as $source) {
 | |
| 					if($source === 'main.js')
 | |
| 						continue;
 | |
| 					$str .= format_js_if_exists($source);
 | |
| 				}
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	return $str;
 | |
| }
 | |
| 
 | |
| function head_get_main_js() {
 | |
| 	$str = '';
 | |
| 	$sources = array('main.js');
 | |
| 	if(count($sources))
 | |
| 		foreach($sources as $source)
 | |
| 			$str .= format_js_if_exists($source,true);
 | |
| 
 | |
| 	return $str;
 | |
| }
 | |
| 
 | |
| function format_js_if_exists($source) {
 | |
| 	$path_prefix = script_path();
 | |
| 
 | |
| 	if(strpos($source,'/') !== false) {
 | |
| 		// The source is a known path on the system
 | |
| 		$path = $source;
 | |
| 		// If the url starts with // then it's an absolute URL
 | |
| 		if(substr($source,0,2) === '//') {
 | |
| 			$path_prefix = '';
 | |
| 		}
 | |
| 	}
 | |
| 	else {
 | |
| 		// It's a file from the theme
 | |
| 		$path = '/' . theme_include($source);
 | |
| 	}
 | |
| 	if($path) {
 | |
| 		$qstring = ((parse_url($path, PHP_URL_QUERY)) ? '&' : '?') . 'v=' . STD_VERSION;
 | |
| 		return '<script src="' . $path_prefix . $path . $qstring . '" ></script>' . "\r\n" ;
 | |
| 	}
 | |
| }
 | |
| 
 | |
| 
 | |
| function theme_include($file, $root = '') {
 | |
| 
 | |
| 	// Make sure $root ends with a slash / if it's not blank
 | |
| 	if($root !== '' && substr($root,-1) !== '/')
 | |
| 		$root = $root . '/';
 | |
| 	$theme_info = App::$theme_info;
 | |
| 
 | |
| 	if(array_key_exists('extends',$theme_info))
 | |
| 		$parent = $theme_info['extends'];
 | |
| 	else
 | |
| 		$parent = 'NOPATH';
 | |
| 
 | |
| 	$theme = Zotlabs\Render\Theme::current();
 | |
| 	$thname = $theme[0];
 | |
| 
 | |
| 	$ext = substr($file,strrpos($file,'.')+1);
 | |
| 
 | |
| 	$paths = array(
 | |
| 		"{$root}view/theme/$thname/$ext/$file",
 | |
| 		"{$root}view/theme/$parent/$ext/$file",
 | |
| 		"{$root}view/site/$ext/$file",
 | |
| 		"{$root}view/$ext/$file",
 | |
| 	);
 | |
| 
 | |
| 	foreach($paths as $p) {
 | |
| 		// strpos() is faster than strstr when checking if one string is in another (http://php.net/manual/en/function.strstr.php)
 | |
| 		if(strpos($p,'NOPATH') !== false)
 | |
| 			continue;
 | |
| 		if(file_exists($p))
 | |
| 			return $p;
 | |
| 	}
 | |
| 
 | |
| 	return '';
 | |
| }
 | |
| 
 | |
| function get_intltext_template($s, $root = '') {
 | |
|         $testroot = ($root=='') ? $testroot = "ROOT" : $root;
 | |
|         $t = App::template_engine();
 | |
| 
 | |
|         if (isset(\App::$override_intltext_templates[$testroot][$s]["content"])) {
 | |
|                 return \App::$override_intltext_templates[$testroot][$s]["content"];
 | |
|         } else {
 | |
|                 if (isset(\App::$override_intltext_templates[$testroot][$s]["root"]) &&
 | |
|                    isset(\App::$override_intltext_templates[$testroot][$s]["file"])) {
 | |
|                         $s = \App::$override_intltext_templates[$testroot][$s]["file"];
 | |
|                         $root = \App::$override_intltext_templates[$testroot][$s]["root"];
 | |
|                 } elseif (\App::$override_templateroot) {
 | |
|                    $newroot = \App::$override_templateroot.$root;
 | |
|                    if ($newroot != '' && substr($newroot,-1) != '/' ) {
 | |
|                            $newroot .= '/';
 | |
|                    }
 | |
|                    $template = $t->get_intltext_template($s, $newroot);
 | |
|                 }
 | |
|                 $template = $t->get_intltext_template($s, $root);
 | |
|                 return $template;
 | |
|         }
 | |
| }
 | |
| 
 | |
| function get_markup_template($s, $root = '') {
 | |
| 	$testroot = ($root=='') ? $testroot = "ROOT" : $root;
 | |
| 
 | |
| 	$t = App::template_engine();
 | |
| 
 | |
| 	if (isset(\App::$override_markup_templates[$testroot][$s]["content"])) {
 | |
| 		return \App::$override_markup_templates[$testroot][$s]["content"];
 | |
| 	} else {
 | |
| 		if (isset(\App::$override_markup_templates[$testroot][$s]["root"]) &&
 | |
| 				isset(\App::$override_markup_templates[$testroot][$s]["file"])) {
 | |
| 					$root = \App::$override_markup_templates[$testroot][$s]["root"];
 | |
| 					$s = \App::$override_markup_templates[$testroot][$s]["file"];
 | |
| 					$template = $t->get_markup_template($s, $root);
 | |
| 		} elseif (\App::$override_templateroot) {
 | |
| 			$newroot = \App::$override_templateroot;
 | |
| 			if ($newroot != '' && substr($newroot,-1) != '/' ) {
 | |
| 				$newroot .= '/';
 | |
| 			}
 | |
| 			$newroot .= $root;
 | |
| 			$template = $t->get_markup_template($s, $newroot);
 | |
| 		} else {
 | |
| 			$template = $t->get_markup_template($s, $root);
 | |
| 		}
 | |
| 		return $template;
 | |
| 	}
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * @brief Test if a folder exists.
 | |
|  *
 | |
|  * @param string $folder
 | |
|  * @return boolean|string
 | |
|  *   False if folder does not exist, or canonicalized absolute pathname
 | |
|  */
 | |
| function folder_exists($folder) {
 | |
| 	// Get canonicalized absolute pathname
 | |
| 	$path = realpath($folder);
 | |
| 
 | |
| 	// If it exist, check if it's a directory
 | |
| 	return (($path !== false) && is_dir($path)) ? $path : false;
 | |
| }
 |