/
Backend.php
1558 lines (1319 loc) · 41.1 KB
/
Backend.php
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<?php
/*
* This file is part of Contao.
*
* (c) Leo Feyer
*
* @license LGPL-3.0-or-later
*/
namespace Contao;
use Contao\CoreBundle\Exception\AccessDeniedException;
use Contao\CoreBundle\Exception\ResponseException;
use Contao\CoreBundle\Picker\PickerInterface;
use Contao\CoreBundle\Security\ContaoCorePermissions;
use Contao\CoreBundle\Util\LocaleUtil;
use Contao\Database\Result;
use Symfony\Component\Filesystem\Exception\IOException;
use Symfony\Component\Filesystem\Filesystem;
use Symfony\Component\Finder\Finder;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\Session\Attribute\AttributeBagInterface;
/**
* Provide methods to manage back end controllers.
*
* @property Ajax $objAjax
*/
abstract class Backend extends Controller
{
/**
* Load the database object
*/
protected function __construct()
{
parent::__construct();
$this->import(Database::class, 'Database');
$this->setStaticUrls();
}
/**
* Return the current theme as string
*
* @return string The name of the theme
*/
public static function getTheme()
{
$theme = Config::get('backendTheme');
$projectDir = System::getContainer()->getParameter('kernel.project_dir');
if ($theme && $theme != 'flexible' && is_dir($projectDir . '/system/themes/' . $theme))
{
return $theme;
}
return 'flexible';
}
/**
* Return the back end themes as array
*
* @return array An array of available back end themes
*/
public static function getThemes()
{
$arrReturn = array();
$projectDir = System::getContainer()->getParameter('kernel.project_dir');
$arrThemes = Folder::scan($projectDir . '/system/themes');
foreach ($arrThemes as $strTheme)
{
if (strncmp($strTheme, '.', 1) === 0 || !is_dir($projectDir . '/system/themes/' . $strTheme))
{
continue;
}
$arrReturn[$strTheme] = $strTheme;
}
return $arrReturn;
}
/**
* Return the TinyMCE language
*
* @return string
*/
public static function getTinyMceLanguage()
{
$lang = LocaleUtil::formatAsLocale((string) $GLOBALS['TL_LANGUAGE']);
if (!$lang)
{
return 'en';
}
$projectDir = System::getContainer()->getParameter('kernel.project_dir');
// The translation exists
if (file_exists($projectDir . '/assets/tinymce4/js/langs/' . $lang . '.js'))
{
return $lang;
}
if (($short = substr($GLOBALS['TL_LANGUAGE'], 0, 2)) != $lang)
{
// Try the short tag, e.g. "de" instead of "de_CH"
if (file_exists($projectDir . '/assets/tinymce4/js/langs/' . $short . '.js'))
{
return $short;
}
}
elseif (($long = $short . '_' . strtoupper($short)) != $lang)
{
// Try the long tag, e.g. "fr_FR" instead of "fr" (see #6952)
if (file_exists($projectDir . '/assets/tinymce4/js/langs/' . $long . '.js'))
{
return $long;
}
}
// Fallback to English
return 'en';
}
/**
* Get the Ace code editor type from a file extension
*
* @param string $ext
*
* @return string
*/
public static function getAceType($ext)
{
switch ($ext)
{
case 'css':
case 'diff':
case 'html':
case 'ini':
case 'java':
case 'json':
case 'less':
case 'mysql':
case 'php':
case 'scss':
case 'sql':
case 'twig':
case 'xml':
case 'yaml':
return $ext;
case 'js':
case 'javascript':
return 'javascript';
case 'md':
case 'markdown':
return 'markdown';
case 'ts':
return 'typescript';
case 'cgi':
case 'pl':
return 'perl';
case 'py':
return 'python';
case 'c': case 'cc': case 'cpp': case 'c++':
case 'h': case 'hh': case 'hpp': case 'h++':
return 'c_cpp';
case 'html5':
case 'xhtml':
return 'php';
case 'svg':
case 'svgz':
return 'svg';
default:
return 'text';
}
}
/**
* Return a list of TinyMCE templates as JSON string
*
* @return string
*
* @deprecated Deprecated since Contao 4.13, to be removed in Contao 5.0
*/
public static function getTinyTemplates()
{
trigger_deprecation('contao/core-bundle', '4.13', 'Using "Backend::getTinyTemplates()" has been deprecated and will no longer work in Contao 5.0.');
$strDir = System::getContainer()->getParameter('contao.upload_path') . '/tiny_templates';
$projectDir = System::getContainer()->getParameter('kernel.project_dir');
if (!is_dir($projectDir . '/' . $strDir))
{
return '';
}
$arrFiles = array();
$arrTemplates = Folder::scan($projectDir . '/' . $strDir);
foreach ($arrTemplates as $strFile)
{
if (strncmp('.', $strFile, 1) !== 0 && is_file($projectDir . '/' . $strDir . '/' . $strFile))
{
$arrFiles[] = '{ title: "' . $strFile . '", url: "' . $strDir . '/' . $strFile . '" }';
}
}
return implode(",\n", $arrFiles) . "\n";
}
/**
* Add the request token to the URL
*
* @param string $strRequest
* @param boolean $blnAddRef
* @param array $arrUnset
*
* @return string
*/
public static function addToUrl($strRequest, $blnAddRef=true, $arrUnset=array())
{
// Unset the "no back button" flag
$arrUnset[] = 'nb';
return parent::addToUrl($strRequest . ($strRequest ? '&' : '') . 'rt=' . REQUEST_TOKEN, $blnAddRef, $arrUnset);
}
/**
* Handle "runonce" files
*
* @throws \Exception
*/
public static function handleRunOnce()
{
try
{
$files = System::getContainer()->get('contao.resource_locator')->locate('config/runonce.php', null, false);
}
catch (\InvalidArgumentException $e)
{
return;
}
foreach ($files as $file)
{
try
{
include $file;
}
catch (\Exception $e)
{
}
$strRelpath = StringUtil::stripRootDir($file);
if (!unlink($file))
{
throw new \Exception('The file ' . $strRelpath . ' cannot be deleted. Please remove the file manually and correct the file permission settings on your server.');
}
System::getContainer()->get('monolog.logger.contao.general')->info('File ' . $strRelpath . ' ran once and has then been removed successfully');
}
$appDir = System::getContainer()->getParameter('kernel.project_dir') . '/app';
if (!is_dir($appDir))
{
return;
}
$finder = Finder::create()->files()->in($appDir);
// Do not remove the app folder if there are still files in it
if ($finder->hasResults())
{
return;
}
try
{
(new Filesystem())->remove($appDir);
}
catch (IOException $e)
{
// ignore
}
}
/**
* Open a back end module and return it as HTML
*
* @param string $module
* @param PickerInterface|null $picker
*
* @return string
*
* @throws AccessDeniedException
*/
protected function getBackendModule($module, PickerInterface $picker = null)
{
$arrModule = array();
foreach ($GLOBALS['BE_MOD'] as &$arrGroup)
{
if (isset($arrGroup[$module]))
{
$arrModule = &$arrGroup[$module];
break;
}
}
unset($arrGroup);
$this->import(BackendUser::class, 'User');
$blnAccess = (isset($arrModule['disablePermissionChecks']) && $arrModule['disablePermissionChecks'] === true) || System::getContainer()->get('security.helper')->isGranted(ContaoCorePermissions::USER_CAN_ACCESS_MODULE, $module);
// Check whether the current user has access to the current module
if (!$blnAccess)
{
throw new AccessDeniedException('Back end module "' . $module . '" is not allowed for user "' . $this->User->username . '".');
}
// The module does not exist
if (empty($arrModule))
{
throw new \InvalidArgumentException('Back end module "' . $module . '" is not defined in the BE_MOD array');
}
$objSession = System::getContainer()->get('session');
$arrTables = (array) ($arrModule['tables'] ?? array());
$strTable = Input::get('table') ?: ($arrTables[0] ?? null);
$id = $this->findCurrentId($strTable);
$objSession->set('CURRENT_ID', $id);
// Define the current ID
\define('CURRENT_ID', (Input::get('table') ? $id : Input::get('id')));
if (isset($GLOBALS['TL_LANG']['MOD'][$module][0]))
{
$this->Template->headline = $GLOBALS['TL_LANG']['MOD'][$module][0];
}
// Add the module style sheet
if (isset($arrModule['stylesheet']))
{
foreach ((array) $arrModule['stylesheet'] as $stylesheet)
{
$GLOBALS['TL_CSS'][] = $stylesheet;
}
}
// Add module javascript
if (isset($arrModule['javascript']))
{
foreach ((array) $arrModule['javascript'] as $javascript)
{
$GLOBALS['TL_JAVASCRIPT'][] = $javascript;
}
}
$dc = null;
$security = System::getContainer()->get('security.helper');
// Create the data container object
if ($strTable)
{
if (!\in_array($strTable, $arrTables))
{
throw new AccessDeniedException('Table "' . $strTable . '" is not allowed in module "' . $module . '".');
}
// Load the language and DCA file
System::loadLanguageFile($strTable);
$this->loadDataContainer($strTable);
// Include all excluded fields which are allowed for the current user
if (\is_array($GLOBALS['TL_DCA'][$strTable]['fields'] ?? null))
{
foreach ($GLOBALS['TL_DCA'][$strTable]['fields'] as $k=>$v)
{
if (($v['exclude'] ?? null) && $security->isGranted(ContaoCorePermissions::USER_CAN_EDIT_FIELD_OF_TABLE, $strTable . '::' . $k))
{
if ($strTable == 'tl_user_group')
{
$GLOBALS['TL_DCA'][$strTable]['fields'][$k]['orig_exclude'] = $GLOBALS['TL_DCA'][$strTable]['fields'][$k]['exclude'];
}
$GLOBALS['TL_DCA'][$strTable]['fields'][$k]['exclude'] = false;
}
}
}
// Fabricate a new data container object
if (!isset($GLOBALS['TL_DCA'][$strTable]['config']['dataContainer']))
{
System::getContainer()->get('monolog.logger.contao.error')->error('Missing data container for table "' . $strTable . '"');
trigger_error('Could not create a data container object', E_USER_ERROR);
}
$dataContainer = DataContainer::getDriverForTable($strTable);
/** @var DataContainer $dc */
$dc = new $dataContainer($strTable, $arrModule);
if ($picker !== null && $dc instanceof DataContainer)
{
$dc->initPicker($picker);
}
}
// Wrap the existing headline
$this->Template->headline = '<span>' . $this->Template->headline . '</span>';
// AJAX request
if ($_POST && Environment::get('isAjaxRequest'))
{
$this->objAjax->executePostActions($dc);
}
// Trigger the module callback
elseif (isset($arrModule['callback']) && class_exists($arrModule['callback']))
{
/** @var Module $objCallback */
$objCallback = new $arrModule['callback']($dc);
$this->Template->main .= $objCallback->generate();
}
// Custom action (if key is not defined in config.php the default action will be called)
elseif (Input::get('key') && isset($arrModule[Input::get('key')]))
{
$objCallback = System::importStatic($arrModule[Input::get('key')][0]);
$response = $objCallback->{$arrModule[Input::get('key')][1]}($dc);
if ($response instanceof RedirectResponse)
{
throw new ResponseException($response);
}
if ($response instanceof Response)
{
$response = $response->getContent();
}
$this->Template->main .= $response;
// Add the name of the parent element
if (isset($_GET['table']) && !empty($GLOBALS['TL_DCA'][$strTable]['config']['ptable']) && \in_array(Input::get('table'), $arrTables) && Input::get('table') != ($arrTables[0] ?? null))
{
$objRow = $this->Database->prepare("SELECT * FROM " . $GLOBALS['TL_DCA'][$strTable]['config']['ptable'] . " WHERE id=(SELECT pid FROM $strTable WHERE id=?)")
->limit(1)
->execute(Input::get('id'));
if ($objRow->title)
{
$this->Template->headline .= ' <span>' . $objRow->title . '</span>';
}
elseif ($objRow->name)
{
$this->Template->headline .= ' <span>' . $objRow->name . '</span>';
}
}
// Add the name of the submodule
if (isset($GLOBALS['TL_LANG'][$strTable][Input::get('key')][1]))
{
$this->Template->headline .= ' <span>' . sprintf($GLOBALS['TL_LANG'][$strTable][Input::get('key')][1] ?? '%s', Input::get('id')) . '</span>';
}
else
{
$this->Template->headline .= ' <span>' . Input::get('key') . '</span>';
}
}
// Default action
elseif (\is_object($dc))
{
$act = Input::get('act');
if (!$act || $act == 'paste' || $act == 'select')
{
$act = ($dc instanceof ListableDataContainerInterface) ? 'showAll' : 'edit';
}
switch ($act)
{
case 'delete':
case 'show':
case 'showAll':
case 'undo':
if (!$dc instanceof ListableDataContainerInterface)
{
System::getContainer()->get('monolog.logger.contao.error')->error('Data container ' . $strTable . ' is not listable');
trigger_error('The current data container is not listable', E_USER_ERROR);
}
break;
case 'create':
case 'cut':
case 'cutAll':
case 'copy':
case 'copyAll':
case 'move':
case 'edit':
case 'editAll':
case 'toggle':
if (!$dc instanceof EditableDataContainerInterface)
{
System::getContainer()->get('monolog.logger.contao.error')->error('Data container ' . $strTable . ' is not editable');
trigger_error('The current data container is not editable', E_USER_ERROR);
}
break;
}
// Add the name of the parent elements
if ($strTable && \in_array($strTable, $arrTables) && $strTable != $arrTables[0])
{
$trail = array();
$pid = $dc->id;
$table = $strTable;
$ptable = $act != 'edit' ? ($GLOBALS['TL_DCA'][$strTable]['config']['ptable'] ?? null) : $strTable;
$container = System::getContainer();
if ($ptable)
{
$this->loadDataContainer($ptable);
}
while ($ptable && !\in_array($GLOBALS['TL_DCA'][$table]['list']['sorting']['mode'] ?? null, array(DataContainer::MODE_TREE, DataContainer::MODE_TREE_EXTENDED)) && is_a(($GLOBALS['TL_DCA'][$ptable]['config']['dataContainer'] ?? null), DC_Table::class, true))
{
$objRow = $this->Database->prepare("SELECT * FROM " . $ptable . " WHERE id=?")
->limit(1)
->execute($pid);
// Add only parent tables to the trail
if ($table != $ptable)
{
// Add table name
if (isset($GLOBALS['TL_LANG']['MOD'][$table]))
{
$trail[] = ' <span>' . $GLOBALS['TL_LANG']['MOD'][$table] . '</span>';
}
// Add object title or name
if ($linkLabel = ($objRow->title ?: $objRow->name ?: $objRow->headline))
{
$strUrl = $container->get('router')->generate('contao_backend', array
(
'do' => $container->get('request_stack')->getCurrentRequest()->query->get('do'),
'table' => $table,
'id' => $objRow->id,
'ref' => $container->get('request_stack')->getCurrentRequest()->attributes->get('_contao_referer_id'),
'rt' => REQUEST_TOKEN,
));
$trail[] = sprintf(' <span><a href="%s">%s</a></span>', $strUrl, $linkLabel);
}
}
// Next parent table
$pid = $objRow->pid;
$table = $ptable;
$ptable = ($GLOBALS['TL_DCA'][$ptable]['config']['dynamicPtable'] ?? null) ? $objRow->ptable : ($GLOBALS['TL_DCA'][$ptable]['config']['ptable'] ?? null);
if ($ptable)
{
$this->loadDataContainer($ptable);
}
}
// Add the last parent table
if (isset($GLOBALS['TL_LANG']['MOD'][$table]))
{
$trail[] = ' <span>' . $GLOBALS['TL_LANG']['MOD'][$table] . '</span>';
}
// Add the breadcrumb trail in reverse order
foreach (array_reverse($trail) as $breadcrumb)
{
$this->Template->headline .= $breadcrumb;
}
}
$do = Input::get('do');
// Add the current action
if ($act == 'editAll')
{
if (isset($GLOBALS['TL_LANG']['MSC']['all'][0]))
{
$this->Template->headline .= ' <span>' . $GLOBALS['TL_LANG']['MSC']['all'][0] . '</span>';
}
}
elseif ($act == 'overrideAll')
{
if (isset($GLOBALS['TL_LANG']['MSC']['all_override'][0]))
{
$this->Template->headline .= ' <span>' . $GLOBALS['TL_LANG']['MSC']['all_override'][0] . '</span>';
}
}
elseif (Input::get('id'))
{
if ($do == 'files' || $do == 'tpl_editor')
{
// Handle new folders (see #7980)
if (strpos(Input::get('id'), '__new__') !== false)
{
$this->Template->headline .= ' <span>' . \dirname(Input::get('id')) . '</span> <span>' . $GLOBALS['TL_LANG'][$strTable]['new'][1] . '</span>';
}
else
{
$this->Template->headline .= ' <span>' . Input::get('id') . '</span>';
}
}
elseif (isset($GLOBALS['TL_LANG'][$strTable][$act]))
{
if (\is_array($GLOBALS['TL_LANG'][$strTable][$act]))
{
$this->Template->headline .= ' <span>' . sprintf($GLOBALS['TL_LANG'][$strTable][$act][1], Input::get('id')) . '</span>';
}
else
{
$this->Template->headline .= ' <span>' . sprintf($GLOBALS['TL_LANG'][$strTable][$act], Input::get('id')) . '</span>';
}
}
}
elseif (Input::get('pid'))
{
if ($do == 'files' || $do == 'tpl_editor')
{
if ($act == 'move')
{
$this->Template->headline .= ' <span>' . Input::get('pid') . '</span> <span>' . $GLOBALS['TL_LANG'][$strTable]['move'][1] . '</span>';
}
else
{
$this->Template->headline .= ' <span>' . Input::get('pid') . '</span>';
}
}
elseif (isset($GLOBALS['TL_LANG'][$strTable][$act]))
{
if (\is_array($GLOBALS['TL_LANG'][$strTable][$act]))
{
$this->Template->headline .= ' <span>' . sprintf($GLOBALS['TL_LANG'][$strTable][$act][1], Input::get('pid')) . '</span>';
}
else
{
$this->Template->headline .= ' <span>' . sprintf($GLOBALS['TL_LANG'][$strTable][$act], Input::get('pid')) . '</span>';
}
}
}
return $dc->$act();
}
return null;
}
/**
* With this method, the ID of the current (parent) record can be
* determined stateless based on the current request only.
*
* In older versions, Contao stored the ID of the current (parent) record
* in the user session as "CURRENT_ID" to make it known on subsequent
* requests. This was unreliable and caused several issues, like for
* example if the user used multiple browser tabs at the same time.
*/
protected function findCurrentId(?string $table): ?string
{
if (!$table)
{
return null;
}
$id = Input::get('id');
$pid = Input::get('pid');
$act = Input::get('act');
$mode = Input::get('mode');
// For these actions the id parameter refers to the parent record
if (($act === 'paste' && $mode !== 'copy' && $mode !== 'cut') || \in_array($act, array(null, 'select', 'editAll', 'overrideAll', 'deleteAll'), true))
{
return $id;
}
// For these actions the pid parameter refers to the insert position
if (\in_array($act, array('create', 'cut', 'copy', 'cutAll', 'copyAll'), true))
{
// Mode “paste into”
if ($mode === '2')
{
return $pid;
}
// Mode “paste after”
$id = $pid;
}
if (!$id)
{
return null;
}
$allTables = array_merge(
...array_values(
array_map(
static function ($module)
{
return (array) ($module['tables'] ?? array());
},
array_merge(...array_values($GLOBALS['BE_MOD']))
)
)
);
// Do not run database queries for unknown tables
if (!\in_array($table, $allTables, true))
{
return null;
}
try
{
return $this->Database->prepare("SELECT pid FROM `$table` WHERE id=?")->limit(1)->execute($id)->pid;
}
catch (\Throwable $exception)
{
// Ignore errors
}
return null;
}
/**
* Get all searchable pages and return them as array
*
* @param integer $pid
* @param string $domain
* @param boolean $blnIsXmlSitemap
*
* @return array
*
* @deprecated Deprecated since Contao 4.12, to be removed in Contao 5.0
*/
public static function findSearchablePages($pid=0, $domain='', $blnIsXmlSitemap=false)
{
trigger_deprecation('contao/core-bundle', '4.12', 'Using "Backend::findSearchablePages()" has been deprecated and will no longer work in Contao 5.0.');
// Since the publication status of a page is not inherited by its child
// pages, we have to use findByPid() instead of findPublishedByPid() and
// filter out unpublished pages in the foreach loop (see #2217)
$objPages = PageModel::findByPid($pid, array('order'=>'sorting'));
if ($objPages === null)
{
return array();
}
$arrPages = array();
$user = null;
if (Config::get('indexProtected') && System::getContainer()->get('contao.security.token_checker')->hasFrontendUser())
{
$user = FrontendUser::getInstance();
}
// Recursively walk through all subpages
foreach ($objPages as $objPage)
{
$objPage->loadDetails();
// PageModel->groups is an array after calling loadDetails()
// Cannot use security voters across firewall context (backend to frontend)
$indexProtected = (!$user && \in_array(-1, $objPage->groups)) || ($user && $user->isMemberOf($objPage->groups));
$isPublished = ($objPage->published && (!$objPage->start || $objPage->start <= time()) && (!$objPage->stop || $objPage->stop > time()));
// Searchable and not protected
if ($isPublished && $objPage->type == 'regular' && !$objPage->requireItem && (!$objPage->noSearch || $blnIsXmlSitemap) && (!$blnIsXmlSitemap || $objPage->robots != 'noindex,nofollow') && (!$objPage->protected || $indexProtected))
{
$arrPages[] = $objPage->getAbsoluteUrl();
// Get articles with teaser
if (($objArticles = ArticleModel::findPublishedWithTeaserByPid($objPage->id, array('ignoreFePreview'=>true))) !== null)
{
foreach ($objArticles as $objArticle)
{
$arrPages[] = $objPage->getAbsoluteUrl('/articles/' . ($objArticle->alias ?: $objArticle->id));
}
}
}
// Get subpages
if ((!$objPage->protected || $indexProtected) && ($arrSubpages = static::findSearchablePages($objPage->id, $domain, $blnIsXmlSitemap)))
{
$arrPages = array_merge($arrPages, $arrSubpages);
}
}
return $arrPages;
}
/**
* Add the file meta information to the request
*
* @param string $strUuid
* @param string $strPtable
* @param integer $intPid
*
* @deprecated Deprecated since Contao 4.4, to be removed in Contao 5.0.
*/
public static function addFileMetaInformationToRequest($strUuid, $strPtable, $intPid)
{
trigger_deprecation('contao/core-bundle', '4.4', 'Using "Contao\Backend::addFileMetaInformationToRequest()" has been deprecated and will no longer work in Contao 5.0.');
$objFile = FilesModel::findByUuid($strUuid);
if ($objFile === null)
{
return;
}
$arrMeta = StringUtil::deserialize($objFile->meta);
if (empty($arrMeta))
{
return;
}
$objPage = null;
if ($strPtable == 'tl_article')
{
$objPage = PageModel::findOneBy(array('tl_page.id=(SELECT pid FROM tl_article WHERE id=?)'), $intPid);
}
elseif (isset($GLOBALS['TL_HOOKS']['addFileMetaInformationToRequest']) && \is_array($GLOBALS['TL_HOOKS']['addFileMetaInformationToRequest']))
{
// HOOK: support custom modules
foreach ($GLOBALS['TL_HOOKS']['addFileMetaInformationToRequest'] as $callback)
{
if (($val = System::importStatic($callback[0])->{$callback[1]}($strPtable, $intPid)) !== false)
{
$objPage = $val;
}
}
if ($objPage instanceof Result && $objPage->numRows < 1)
{
return;
}
if (\is_object($objPage) && !($objPage instanceof PageModel))
{
$objPage = PageModel::findByPk($objPage->id);
}
}
if ($objPage === null)
{
return;
}
$objPage->loadDetails();
// Convert the language to a locale (see #5678)
$strLanguage = LocaleUtil::formatAsLocale($objPage->rootLanguage);
if (isset($arrMeta[$strLanguage]))
{
if (!empty($arrMeta[$strLanguage]['title']) && !Input::post('title'))
{
Input::setPost('title', $arrMeta[$strLanguage]['title']);
}
if (!empty($arrMeta[$strLanguage]['alt']) && !Input::post('alt'))
{
Input::setPost('alt', $arrMeta[$strLanguage]['alt']);
}
if (!empty($arrMeta[$strLanguage]['caption']) && !Input::post('caption'))
{
Input::setPost('caption', $arrMeta[$strLanguage]['caption']);
}
}
}
/**
* Add a breadcrumb menu to the page tree
*
* @param string $strKey
*
* @throws AccessDeniedException
* @throws \RuntimeException
*/
public static function addPagesBreadcrumb($strKey='tl_page_node')
{
/** @var AttributeBagInterface $objSession */
$objSession = System::getContainer()->get('session')->getBag('contao_backend');
// Set a new node
if (isset($_GET['pn']))
{
// Check the path (thanks to Arnaud Buchoux)
if (Validator::isInsecurePath(Input::get('pn', true)))
{
throw new \RuntimeException('Insecure path ' . Input::get('pn', true));
}
$objSession->set($strKey, Input::get('pn', true));
Controller::redirect(preg_replace('/&pn=[^&]*/', '', Environment::get('request')));
}
$intNode = $objSession->get($strKey);
if ($intNode < 1)
{
return;
}
// Check the path (thanks to Arnaud Buchoux)
if (Validator::isInsecurePath($intNode))
{
throw new \RuntimeException('Insecure path ' . $intNode);
}
$arrIds = array();
$arrLinks = array();
$objUser = BackendUser::getInstance();
// Generate breadcrumb trail
if ($intNode)
{
$intId = $intNode;
$objDatabase = Database::getInstance();
do
{
$objPage = $objDatabase->prepare("SELECT * FROM tl_page WHERE id=?")
->limit(1)
->execute($intId);
if ($objPage->numRows < 1)
{
// The currently selected page does not exist
if ($intId == $intNode)
{
$objSession->set($strKey, 0);
return;
}
break;
}
$arrIds[] = $intId;
// No link for the active page or pages in the trail
if ($objPage->id == $intNode || !$objUser->hasAccess($objPage->id, 'pagemounts'))
{
$arrLinks[] = self::addPageIcon($objPage->row(), '', null, '', true) . ' ' . $objPage->title;
}
else
{
$arrLinks[] = self::addPageIcon($objPage->row(), '', null, '', true) . ' <a href="' . self::addToUrl('pn=' . $objPage->id) . '" title="' . StringUtil::specialchars($GLOBALS['TL_LANG']['MSC']['selectNode']) . '">' . $objPage->title . '</a>';
}
$intId = $objPage->pid;
}
while ($intId > 0 && $objPage->type != 'root');
}
// Check whether the node is mounted
if (!$objUser->hasAccess($arrIds, 'pagemounts'))
{
$objSession->set($strKey, 0);
throw new AccessDeniedException('Page ID ' . $intNode . ' is not mounted.');
}
// Limit tree and disable root trails
$GLOBALS['TL_DCA']['tl_page']['list']['sorting']['root'] = array($intNode);
$GLOBALS['TL_DCA']['tl_page']['list']['sorting']['showRootTrails'] = false;
// Add root link
$arrLinks[] = Image::getHtml('pagemounts.svg') . ' <a href="' . self::addToUrl('pn=0') . '" title="' . StringUtil::specialchars($GLOBALS['TL_LANG']['MSC']['selectAllNodes']) . '">' . $GLOBALS['TL_LANG']['MSC']['filterAll'] . '</a>';
$arrLinks = array_reverse($arrLinks);