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<?php
/**
* @package Joomla.Libraries
* @subpackage Module
*
* @copyright Copyright (C) 2005 - 2014 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
/**
* Base on Joomla core file:
* libraries/cms/module/helper.php
*/
defined('JPATH_PLATFORM') or die;
/**
* Module helper class
*
* @package Joomla.Libraries
* @subpackage Module
* @since 1.5
*/
abstract class JModuleHelper
{
/**
* Get module by name (real, eg 'Breadcrumbs' or folder, eg 'mod_breadcrumbs')
*
* @param string $name The name of the module
* @param string $title The title of the module, optional
*
* @return object The Module object
*
* @since 1.5
*/
public static function &getModule($name, $title = null)
{
$result = null;
$modules =& static::load();
$total = count($modules);
for ($i = 0; $i < $total; $i++)
{
// Match the name of the module
if ($modules[$i]->name == $name || $modules[$i]->module == $name)
{
// Match the title if we're looking for a specific instance of the module
if (!$title || $modules[$i]->title == $title)
{
// Found it
$result = &$modules[$i];
break;
}
}
}
// If we didn't find it, and the name is mod_something, create a dummy object
if (is_null($result) && substr($name, 0, 4) == 'mod_')
{
$result = new stdClass;
$result->id = 0;
$result->title = '';
$result->module = $name;
$result->position = '';
$result->content = '';
$result->showtitle = 0;
$result->control = '';
$result->params = '';
}
return $result;
}
/**
* Get modules by position
*
* @param string $position The position of the module
*
* @return array An array of module objects
*
* @since 1.5
*/
public static function &getModules($position)
{
$position = strtolower($position);
$result = array();
$input = JFactory::getApplication()->input;
$modules =& static::load();
$total = count($modules);
for ($i = 0; $i < $total; $i++)
{
if ($modules[$i]->position == $position)
{
$result[] = &$modules[$i];
}
}
if (count($result) == 0)
{
if ($input->getBool('tp') && JComponentHelper::getParams('com_templates')->get('template_positions_display'))
{
$result[0] = static::getModule('mod_' . $position);
$result[0]->title = $position;
$result[0]->content = $position;
$result[0]->position = $position;
}
}
return $result;
}
/**
* Checks if a module is enabled. A given module will only be returned
* if it meets the following criteria: it is enabled, it is assigned to
* the current menu item or all items, and the user meets the access level
* requirements.
*
* @param string $module The module name
*
* @return boolean See description for conditions.
*
* @since 1.5
*/
public static function isEnabled($module)
{
$result = static::getModule($module);
return (!is_null($result) && $result->id !== 0);
}
/**
* Render the module.
*
* @param object $module A module object.
* @param array $attribs An array of attributes for the module (probably from the XML).
*
* @return string The HTML content of the module output.
*
* @since 1.5
*/
public static function renderModule($module, $attribs = array())
{
static $chrome;
// Check that $module is a valid module object
if (!is_object($module) || !isset($module->module) || !isset($module->params))
{
if (defined('JDEBUG') && JDEBUG)
{
JLog::addLogger(array('text_file' => 'jmodulehelper.log.php'), JLog::ALL, array('modulehelper'));
JLog::add('JModuleHelper::renderModule($module) expects a module object', JLog::DEBUG, 'modulehelper');
}
return;
}
if (defined('JDEBUG'))
{
JProfiler::getInstance('Application')->mark('beforeRenderModule ' . $module->module . ' (' . $module->title . ')');
}
$app = JFactory::getApplication();
// Record the scope.
$scope = $app->scope;
// Set scope to component name
$app->scope = $module->module;
// Get module parameters
$params = new JRegistry;
$params->loadString($module->params);
// Get the template
$template = $app->getTemplate();
// Get module path
$module->module = preg_replace('/[^A-Z0-9_\.-]/i', '', $module->module);
$path = JPATH_BASE . '/modules/' . $module->module . '/' . $module->module . '.php';
// Load the module
if (file_exists($path))
{
$lang = JFactory::getLanguage();
// 1.5 or Core then 1.6 3PD
$lang->load($module->module, JPATH_BASE, null, false, true) ||
$lang->load($module->module, dirname($path), null, false, true);
$content = '';
ob_start();
include $path;
$module->content = ob_get_contents() . $content;
ob_end_clean();
}
// Load the module chrome functions
if (!$chrome)
{
$chrome = array();
}
include_once JPATH_THEMES . '/system/html/modules.php';
$chromePath = JPATH_THEMES . '/' . $template . '/html/modules.php';
if ( ! isset($chrome[$chromePath]))
{
if (file_exists($chromePath))
{
// Read module chrome function name from definition file
if (preg_match_all('/function\s+(modChrome_[a-z0-9_]+)/i', file_get_contents($chromePath), $matches, PREG_SET_ORDER))
{
$module_chrome_loaded = false;
// Make sure module chrome is loaded only 1 time
foreach ($matches as $match)
{
if (function_exists($match[1]))
{
$module_chrome_loaded = true;
break;
}
}
// Include module chrome definition file
if ( ! $module_chrome_loaded)
{
include_once $chromePath;
}
}
}
$chrome[$chromePath] = true;
}
/* Trigger onJSNTPLRenderModule to overide Chrome module */
if ( ! file_exists($chromePath))
{
$result = $app->triggerEvent('onJSNTPLRenderModule', array(&$module, &$attribs));
if ( ! is_array($result))
{
$result = array($result);
}
if (array_search(true, $result, true) !== false)
{
return '';
}
$chrome[$chromePath] = true;
}
/* Trigger onJSNTPLRenderModule to overide Chrome module */
// Check if the current module has a style param to override template module style
$paramsChromeStyle = $params->get('style');
if ($paramsChromeStyle)
{
$attribs['style'] = preg_replace('/^(system|' . $template . ')\-/i', '', $paramsChromeStyle);
}
// Make sure a style is set
if (!isset($attribs['style']))
{
$attribs['style'] = 'none';
}
// Dynamically add outline style
if ($app->input->getBool('tp') && JComponentHelper::getParams('com_templates')->get('template_positions_display'))
{
$attribs['style'] .= ' outline';
}
foreach (explode(' ', $attribs['style']) as $style)
{
$chromeMethod = 'modChrome_' . $style;
// Apply chrome and render module
if (function_exists($chromeMethod))
{
$module->style = $attribs['style'];
ob_start();
$chromeMethod($module, $params, $attribs);
$module->content = ob_get_contents();
ob_end_clean();
}
}
// Revert the scope
$app->scope = $scope;
if (defined('JDEBUG'))
{
JProfiler::getInstance('Application')->mark('afterRenderModule ' . $module->module . ' (' . $module->title . ')');
}
return $module->content;
}
/**
* Get the path to a layout for a module
*
* @param string $module The name of the module
* @param string $layout The name of the module layout. If alternative layout, in the form template:filename.
*
* @return string The path to the module layout
*
* @since 1.5
*/
public static function getLayoutPath($module, $layout = 'default')
{
$template = JFactory::getApplication()->getTemplate();
$defaultLayout = $layout;
if (strpos($layout, ':') !== false)
{
// Get the template and file name from the string
$temp = explode(':', $layout);
$template = ($temp[0] == '_') ? $template : $temp[0];
$layout = $temp[1];
$defaultLayout = ($temp[1]) ? $temp[1] : 'default';
}
// Build the template and base path for the layout
$tPath = JPATH_THEMES . '/' . $template . '/html/' . $module . '/' . $layout . '.php';
$bPath = JPATH_BASE . '/modules/' . $module . '/tmpl/' . $defaultLayout . '.php';
$dPath = JPATH_BASE . '/modules/' . $module . '/tmpl/default.php';
/* Trigger onJSNTPLGetModuleLayoutPath to get overidden layout module */
$JSNTPLfPath = '';
$app = JFactory::getApplication();
$result = $app->triggerEvent('onJSNTPLGetModuleLayoutPath', array($module, $layout));
if (is_array($result))
{
foreach ($result as $path)
{
if ($path !== false && is_file($path))
{
$JSNTPLfPath = $path;
}
}
}
/* Trigger onJSNTPLGetModuleLayoutPath to get overidden layout module */
// If the template has a layout override use it
if (file_exists($tPath))
{
return $tPath;
}
if ($JSNTPLfPath != '' && file_exists($JSNTPLfPath))
{
return $JSNTPLfPath;
}
elseif (file_exists($bPath))
{
return $bPath;
}
else
{
return $dPath;
}
}
/**
* Load published modules.
*
* @return array
*
* @since 1.5
* @deprecated 4.0 Use JModuleHelper::load() instead
*/
protected static function &_load()
{
return static::load();
}
/**
* Load published modules.
*
* @return array
*
* @since 3.2
*/
protected static function &load()
{
static $modules;
if (isset($modules))
{
return $modules;
}
$app = JFactory::getApplication();
$modules = null;
$app->triggerEvent('onPrepareModuleList', array(&$modules));
// If the onPrepareModuleList event returns an array of modules, then ignore the default module list creation
if (!is_array($modules))
{
$modules = static::getModuleList();
}
$app->triggerEvent('onAfterModuleList', array(&$modules));
$modules = static::cleanModuleList($modules);
$app->triggerEvent('onAfterCleanModuleList', array(&$modules));
return $modules;
}
/**
* Module list
*
* @return array
*/
public static function getModuleList()
{
$app = JFactory::getApplication();
$Itemid = $app->input->getInt('Itemid');
$groups = implode(',', JFactory::getUser()->getAuthorisedViewLevels());
$lang = JFactory::getLanguage()->getTag();
$clientId = (int) $app->getClientId();
$db = JFactory::getDbo();
$query = $db->getQuery(true)
->select('m.id, m.title, m.module, m.position, m.content, m.showtitle, m.params, mm.menuid')
->from('#__modules AS m')
->join('LEFT', '#__modules_menu AS mm ON mm.moduleid = m.id')
->where('m.published = 1')
->join('LEFT', '#__extensions AS e ON e.element = m.module AND e.client_id = m.client_id')
->where('e.enabled = 1');
$date = JFactory::getDate();
$now = $date->toSql();
$nullDate = $db->getNullDate();
$query->where('(m.publish_up = ' . $db->quote($nullDate) . ' OR m.publish_up <= ' . $db->quote($now) . ')')
->where('(m.publish_down = ' . $db->quote($nullDate) . ' OR m.publish_down >= ' . $db->quote($now) . ')')
->where('m.access IN (' . $groups . ')')
->where('m.client_id = ' . $clientId)
->where('(mm.menuid = ' . (int) $Itemid . ' OR mm.menuid <= 0)');
// Filter by language
if ($app->isSite() && $app->getLanguageFilter())
{
$query->where('m.language IN (' . $db->quote($lang) . ',' . $db->quote('*') . ')');
}
$query->order('m.position, m.ordering');
// Set the query
$db->setQuery($query);
try
{
$modules = $db->loadObjectList();
}
catch (RuntimeException $e)
{
JLog::add(JText::sprintf('JLIB_APPLICATION_ERROR_MODULE_LOAD', $e->getMessage()), JLog::WARNING, 'jerror');
return array();
}
return $modules;
}
/**
* Clean the module list
*
* @param array $modules Array with module objects
*
* @return array
*/
public static function cleanModuleList($modules)
{
// Apply negative selections and eliminate duplicates
$Itemid = JFactory::getApplication()->input->getInt('Itemid');
$negId = $Itemid ? -(int) $Itemid : false;
$clean = array();
$dupes = array();
foreach ($modules as $i => $module)
{
// The module is excluded if there is an explicit prohibition
$negHit = ($negId === (int) $module->menuid);
if (isset($dupes[$module->id]))
{
// If this item has been excluded, keep the duplicate flag set,
// but remove any item from the modules array.
if ($negHit)
{
unset($clean[$module->id]);
}
continue;
}
$dupes[$module->id] = true;
// Only accept modules without explicit exclusions.
if ($negHit)
{
continue;
}
$module->name = substr($module->module, 4);
$module->style = null;
$module->position = strtolower($module->position);
$clean[$module->id] = $module;
}
unset($dupes);
// Return to simple indexing that matches the query order.
return array_values($clean);
}
/**
* Module cache helper
*
* Caching modes:
* To be set in XML:
* 'static' One cache file for all pages with the same module parameters
* 'oldstatic' 1.5 definition of module caching, one cache file for all pages
* with the same module id and user aid,
* 'itemid' Changes on itemid change, to be called from inside the module:
* 'safeuri' Id created from $cacheparams->modeparams array,
* 'id' Module sets own cache id's
*
* @param object $module Module object
* @param object $moduleparams Module parameters
* @param object $cacheparams Module cache parameters - id or url parameters, depending on the module cache mode
*
* @return string
*
* @see JFilterInput::clean()
* @since 1.6
*/
public static function moduleCache($module, $moduleparams, $cacheparams)
{
if (!isset($cacheparams->modeparams))
{
$cacheparams->modeparams = null;
}
if (!isset($cacheparams->cachegroup))
{
$cacheparams->cachegroup = $module->module;
}
$user = JFactory::getUser();
$cache = JFactory::getCache($cacheparams->cachegroup, 'callback');
$conf = JFactory::getConfig();
// Turn cache off for internal callers if parameters are set to off and for all logged in users
if ($moduleparams->get('owncache', null) === '0' || $conf->get('caching') == 0 || $user->get('id'))
{
$cache->setCaching(false);
}
// Module cache is set in seconds, global cache in minutes, setLifeTime works in minutes
$cache->setLifeTime($moduleparams->get('cache_time', $conf->get('cachetime') * 60) / 60);
$wrkaroundoptions = array('nopathway' => 1, 'nohead' => 0, 'nomodules' => 1, 'modulemode' => 1, 'mergehead' => 1);
$wrkarounds = true;
$view_levels = md5(serialize($user->getAuthorisedViewLevels()));
switch ($cacheparams->cachemode)
{
case 'id':
$ret = $cache->get(
array($cacheparams->class, $cacheparams->method),
$cacheparams->methodparams,
$cacheparams->modeparams,
$wrkarounds,
$wrkaroundoptions
);
break;
case 'safeuri':
$secureid = null;
if (is_array($cacheparams->modeparams))
{
$input = JFactory::getApplication()->input;
$uri = $input->getArray();
$safeuri = new stdClass;
foreach ($cacheparams->modeparams as $key => $value)
{
// Use int filter for id/catid to clean out spamy slugs
if (isset($uri[$key]))
{
$noHtmlFilter = JFilterInput::getInstance();
$safeuri->$key = $noHtmlFilter->clean($uri[$key], $value);
}
}
}
$secureid = md5(serialize(array($safeuri, $cacheparams->method, $moduleparams)));
$ret = $cache->get(
array($cacheparams->class, $cacheparams->method),
$cacheparams->methodparams,
$module->id . $view_levels . $secureid,
$wrkarounds,
$wrkaroundoptions
);
break;
case 'static':
$ret = $cache->get(
array($cacheparams->class,
$cacheparams->method),
$cacheparams->methodparams,
$module->module . md5(serialize($cacheparams->methodparams)),
$wrkarounds,
$wrkaroundoptions
);
break;
// Provided for backward compatibility, not really useful.
case 'oldstatic':
$ret = $cache->get(
array($cacheparams->class, $cacheparams->method),
$cacheparams->methodparams,
$module->id . $view_levels,
$wrkarounds,
$wrkaroundoptions
);
break;
case 'itemid':
default:
$ret = $cache->get(
array($cacheparams->class, $cacheparams->method),
$cacheparams->methodparams,
$module->id . $view_levels . JFactory::getApplication()->input->getInt('Itemid', null),
$wrkarounds,
$wrkaroundoptions
);
break;
}
return $ret;
}
}
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