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<?php
/**
* Joomla! Content Management System
*
* @copyright (C) 2005 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\CMS\Document;
use Joomla\CMS\Cache\Cache;
use Joomla\CMS\Cache\CacheControllerFactoryAwareInterface;
use Joomla\CMS\Cache\CacheControllerFactoryAwareTrait;
use Joomla\CMS\Factory as CmsFactory;
use Joomla\CMS\Filter\InputFilter;
use Joomla\CMS\Helper\ModuleHelper;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Uri\Uri;
use Joomla\CMS\Utility\Utility;
use Joomla\Registry\Registry;
// phpcs:disable PSR1.Files.SideEffects
\defined('JPATH_PLATFORM') or die;
// phpcs:enable PSR1.Files.SideEffects
/**
* HtmlDocument class, provides an easy interface to parse and display a HTML document
*
* @since 1.7.0
*/
class HtmlDocument extends Document implements CacheControllerFactoryAwareInterface
{
use CacheControllerFactoryAwareTrait;
/**
* Array of Header `<link>` tags
*
* @var array
* @since 1.7.0
*/
public $_links = [];
/**
* Array of custom tags
*
* @var array
* @since 1.7.0
*/
public $_custom = [];
/**
* Name of the template
*
* @var string
* @since 1.7.0
*/
public $template = null;
/**
* Base url
*
* @var string
* @since 1.7.0
*/
public $baseurl = null;
/**
* Array of template parameters
*
* @var array
* @since 1.7.0
*/
public $params = null;
/**
* File name
*
* @var array
* @since 1.7.0
*/
public $_file = null;
/**
* Script nonce (string if set, null otherwise)
*
* @var string|null
* @since 4.0.0
*/
public $cspNonce = null;
/**
* String holding parsed template
*
* @var string
* @since 1.7.0
*/
protected $_template = '';
/**
* Array of parsed template JDoc tags
*
* @var array
* @since 1.7.0
*/
protected $_template_tags = [];
/**
* Integer with caching setting
*
* @var integer
* @since 1.7.0
*/
protected $_caching = null;
/**
* Set to true when the document should be output as HTML5
*
* @var boolean
* @since 4.0.0
*/
private $html5 = true;
/**
* Class constructor
*
* @param array $options Associative array of options
*
* @since 1.7.0
*/
public function __construct($options = [])
{
parent::__construct($options);
// Set document type
$this->_type = 'html';
// Set default mime type and document metadata (metadata syncs with mime type by default)
$this->setMimeEncoding('text/html');
}
/**
* Get the HTML document head data
*
* @return array The document head data in array form
*
* @since 1.7.0
*/
public function getHeadData()
{
$data = [];
$data['title'] = $this->title;
$data['description'] = $this->description;
$data['link'] = $this->link;
$data['metaTags'] = $this->_metaTags;
$data['links'] = $this->_links;
$data['styleSheets'] = $this->_styleSheets;
$data['style'] = $this->_style;
$data['scripts'] = $this->_scripts;
$data['script'] = $this->_script;
$data['custom'] = $this->_custom;
/**
* @deprecated 4.0 will be removed in 6.0
* This property is for backwards compatibility. Pass text through script options in the future
*/
$data['scriptText'] = Text::getScriptStrings();
$data['scriptOptions'] = $this->scriptOptions;
// Get Asset manager state
$wa = $this->getWebAssetManager();
$waState = $wa->getManagerState();
// Get asset objects and filter only manually added/enabled assets,
// Dependencies will be picked up from registry files
$waState['assets'] = [];
foreach ($waState['activeAssets'] as $assetType => $assetNames) {
foreach ($assetNames as $assetName => $assetState) {
$waState['assets'][$assetType][] = $wa->getAsset($assetType, $assetName);
}
}
// We have loaded asset objects, now can remove unused stuff
unset($waState['activeAssets']);
$data['assetManager'] = $waState;
return $data;
}
/**
* Reset the HTML document head data
*
* @param mixed $types type or types of the heads elements to reset
*
* @return HtmlDocument instance of $this to allow chaining
*
* @since 3.7.0
*/
public function resetHeadData($types = null)
{
if (\is_null($types)) {
$this->title = '';
$this->description = '';
$this->link = '';
$this->_metaTags = [];
$this->_links = [];
$this->_styleSheets = [];
$this->_style = [];
$this->_scripts = [];
$this->_script = [];
$this->_custom = [];
$this->scriptOptions = [];
}
if (\is_array($types)) {
foreach ($types as $type) {
$this->resetHeadDatum($type);
}
}
if (\is_string($types)) {
$this->resetHeadDatum($types);
}
return $this;
}
/**
* Reset a part the HTML document head data
*
* @param string $type type of the heads elements to reset
*
* @return void
*
* @since 3.7.0
*/
private function resetHeadDatum($type)
{
switch ($type) {
case 'title':
case 'description':
case 'link':
$this->{$type} = '';
break;
case 'metaTags':
case 'links':
case 'styleSheets':
case 'style':
case 'scripts':
case 'script':
case 'custom':
$realType = '_' . $type;
$this->{$realType} = [];
break;
case 'scriptOptions':
$this->{$type} = [];
break;
}
}
/**
* Set the HTML document head data
*
* @param array $data The document head data in array form
*
* @return HtmlDocument|null instance of $this to allow chaining or null for empty input data
*
* @since 1.7.0
*/
public function setHeadData($data)
{
if (empty($data) || !\is_array($data)) {
return null;
}
$this->title = $data['title'] ?? $this->title;
$this->description = $data['description'] ?? $this->description;
$this->link = $data['link'] ?? $this->link;
$this->_metaTags = $data['metaTags'] ?? $this->_metaTags;
$this->_links = $data['links'] ?? $this->_links;
$this->_styleSheets = $data['styleSheets'] ?? $this->_styleSheets;
$this->_style = $data['style'] ?? $this->_style;
$this->_scripts = $data['scripts'] ?? $this->_scripts;
$this->_script = $data['script'] ?? $this->_script;
$this->_custom = $data['custom'] ?? $this->_custom;
$this->scriptOptions = (isset($data['scriptOptions']) && !empty($data['scriptOptions'])) ? $data['scriptOptions'] : $this->scriptOptions;
// Restore asset manager state
$wa = $this->getWebAssetManager();
if (!empty($data['assetManager']['registryFiles'])) {
$waRegistry = $wa->getRegistry();
foreach ($data['assetManager']['registryFiles'] as $registryFile) {
$waRegistry->addRegistryFile($registryFile);
}
}
if (!empty($data['assetManager']['assets'])) {
foreach ($data['assetManager']['assets'] as $assetType => $assets) {
foreach ($assets as $asset) {
$wa->registerAsset($assetType, $asset)->useAsset($assetType, $asset->getName());
}
}
}
return $this;
}
/**
* Merge the HTML document head data
*
* @param array $data The document head data in array form
*
* @return HtmlDocument instance of $this to allow chaining
*
* @since 1.7.0
*/
public function mergeHeadData($data)
{
if (empty($data) || !\is_array($data)) {
return $this;
}
$this->title = (isset($data['title']) && !empty($data['title']) && !stristr($this->title, $data['title']))
? $this->title . $data['title']
: $this->title;
$this->description = (isset($data['description']) && !empty($data['description']) && !stristr($this->description, $data['description']))
? $this->description . $data['description']
: $this->description;
$this->link = $data['link'] ?? $this->link;
if (isset($data['metaTags'])) {
foreach ($data['metaTags'] as $type1 => $data1) {
$booldog = $type1 === 'http-equiv';
foreach ($data1 as $name2 => $data2) {
$this->setMetaData($name2, $data2, $booldog);
}
}
}
$this->_links = (isset($data['links']) && !empty($data['links']) && \is_array($data['links']))
? array_unique(array_merge($this->_links, $data['links']), SORT_REGULAR)
: $this->_links;
$this->_styleSheets = (isset($data['styleSheets']) && !empty($data['styleSheets']) && \is_array($data['styleSheets']))
? array_merge($this->_styleSheets, $data['styleSheets'])
: $this->_styleSheets;
if (isset($data['style'])) {
foreach ($data['style'] as $type => $styles) {
foreach ($styles as $hash => $style) {
if (!isset($this->_style[strtolower($type)][$hash])) {
$this->addStyleDeclaration($style, $type);
}
}
}
}
$this->_scripts = (isset($data['scripts']) && !empty($data['scripts']) && \is_array($data['scripts']))
? array_merge($this->_scripts, $data['scripts'])
: $this->_scripts;
if (isset($data['script'])) {
foreach ($data['script'] as $type => $scripts) {
foreach ($scripts as $hash => $script) {
if (!isset($this->_script[strtolower($type)][$hash])) {
$this->addScriptDeclaration($script, $type);
}
}
}
}
$this->_custom = (isset($data['custom']) && !empty($data['custom']) && \is_array($data['custom']))
? array_unique(array_merge($this->_custom, $data['custom']))
: $this->_custom;
if (!empty($data['scriptOptions'])) {
foreach ($data['scriptOptions'] as $key => $scriptOptions) {
$this->addScriptOptions($key, $scriptOptions, true);
}
}
// Restore asset manager state
$wa = $this->getWebAssetManager();
if (!empty($data['assetManager']['registryFiles'])) {
$waRegistry = $wa->getRegistry();
foreach ($data['assetManager']['registryFiles'] as $registryFile) {
$waRegistry->addRegistryFile($registryFile);
}
}
if (!empty($data['assetManager']['assets'])) {
foreach ($data['assetManager']['assets'] as $assetType => $assets) {
foreach ($assets as $asset) {
$wa->registerAsset($assetType, $asset)->useAsset($assetType, $asset->getName());
}
}
}
return $this;
}
/**
* Adds `<link>` tags to the head of the document
*
* $relType defaults to 'rel' as it is the most common relation type used.
* ('rev' refers to reverse relation, 'rel' indicates normal, forward relation.)
* Typical tag: `<link href="index.php" rel="Start">`
*
* @param string $href The link that is being related.
* @param string $relation Relation of link.
* @param string $relType Relation type attribute. Either rel or rev (default: 'rel').
* @param array $attribs Associative array of remaining attributes.
*
* @return HtmlDocument instance of $this to allow chaining
*
* @since 1.7.0
*/
public function addHeadLink($href, $relation, $relType = 'rel', $attribs = [])
{
$this->_links[$href]['relation'] = $relation;
$this->_links[$href]['relType'] = $relType;
$this->_links[$href]['attribs'] = $attribs;
return $this;
}
/**
* Adds a shortcut icon (favicon)
*
* This adds a link to the icon shown in the favorites list or on
* the left of the url in the address bar. Some browsers display
* it on the tab, as well.
*
* @param string $href The link that is being related.
* @param string $type File type
* @param string $relation Relation of link
*
* @return HtmlDocument instance of $this to allow chaining
*
* @since 1.7.0
*/
public function addFavicon($href, $type = 'image/vnd.microsoft.icon', $relation = 'icon')
{
$href = str_replace('\\', '/', $href);
$this->addHeadLink($href, $relation, 'rel', ['type' => $type]);
return $this;
}
/**
* Adds a custom HTML string to the head block
*
* @param string $html The HTML to add to the head
*
* @return HtmlDocument instance of $this to allow chaining
*
* @since 1.7.0
*/
public function addCustomTag($html)
{
$this->_custom[] = trim($html);
return $this;
}
/**
* Returns whether the document is set up to be output as HTML5
*
* @return boolean true when HTML5 is used
*
* @since 3.0.0
*/
public function isHtml5()
{
return $this->html5;
}
/**
* Sets whether the document should be output as HTML5
*
* @param bool $state True when HTML5 should be output
*
* @return void
*
* @since 3.0.0
*/
public function setHtml5($state)
{
if (\is_bool($state)) {
$this->html5 = $state;
}
}
/**
* Get the contents of a document include
*
* @param string $type The type of renderer
* @param string $name The name of the element to render
* @param array $attribs Associative array of remaining attributes.
*
* @return mixed|string The output of the renderer
*
* @since 1.7.0
*/
public function getBuffer($type = null, $name = null, $attribs = [])
{
// If no type is specified, return the whole buffer
if ($type === null) {
return parent::$_buffer;
}
$title = $attribs['title'] ?? null;
if (isset(parent::$_buffer[$type][$name][$title])) {
return parent::$_buffer[$type][$name][$title];
}
$renderer = $this->loadRenderer($type);
if ($this->_caching == true && $type === 'modules' && $name !== 'debug') {
/** @var \Joomla\CMS\Document\Renderer\Html\ModulesRenderer $renderer */
/** @var \Joomla\CMS\Cache\Controller\OutputController $cache */
$cache = $this->getCacheControllerFactory()->createCacheController('output', ['defaultgroup' => 'com_modules']);
$itemId = (int) CmsFactory::getApplication()->getInput()->get('Itemid', 0, 'int');
$hash = md5(
serialize(
[
$name,
$attribs,
\get_class($renderer),
$itemId,
]
)
);
$cbuffer = $cache->get('cbuffer_' . $type) ?: [];
if (isset($cbuffer[$hash])) {
return Cache::getWorkarounds($cbuffer[$hash], ['mergehead' => 1]);
}
$options = [];
$options['nopathway'] = 1;
$options['nomodules'] = 1;
$options['modulemode'] = 1;
$this->setBuffer($renderer->render($name, $attribs, null), $type, $name);
$data = parent::$_buffer[$type][$name][$title];
$tmpdata = Cache::setWorkarounds($data, $options);
$cbuffer[$hash] = $tmpdata;
$cache->store($cbuffer, 'cbuffer_' . $type);
} else {
$this->setBuffer($renderer->render($name, $attribs, null), $type, $name, $title);
}
return parent::$_buffer[$type][$name][$title];
}
/**
* Set the contents a document includes
*
* @param string $content The content to be set in the buffer.
* @param array $options Array of optional elements.
*
* @return HtmlDocument instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setBuffer($content, $options = [])
{
// The following code is just for backward compatibility.
if (\func_num_args() > 1 && !\is_array($options)) {
$args = \func_get_args();
$options = [];
$options['type'] = $args[1];
$options['name'] = $args[2] ?? null;
$options['title'] = $args[3] ?? null;
}
$type = $options['type'] ?? '';
$name = $options['name'] ?? '';
$title = $options['title'] ?? '';
parent::$_buffer[$type][$name][$title] = $content;
return $this;
}
/**
* Parses the template and populates the buffer
*
* @param array $params Parameters for fetching the template
*
* @return HtmlDocument instance of $this to allow chaining
*
* @since 1.7.0
*/
public function parse($params = [])
{
return $this->_fetchTemplate($params)->_parseTemplate();
}
/**
* Outputs the template to the browser.
*
* @param boolean $caching If true, cache the output
* @param array $params Associative array of attributes
*
* @return string The rendered data
*
* @since 1.7.0
*/
public function render($caching = false, $params = [])
{
$this->_caching = $caching;
if (empty($this->_template)) {
$this->parse($params);
}
if (\array_key_exists('csp_nonce', $params) && $params['csp_nonce'] !== null) {
$this->cspNonce = $params['csp_nonce'];
}
$data = $this->_renderTemplate();
parent::render($caching, $params);
return $data;
}
/**
* Count the modules in the given position
*
* @param string $positionName The position to use
* @param boolean $withContentOnly Count only a modules which actually has a content
*
* @return integer Number of modules found
*
* @since 1.7.0
*/
public function countModules(string $positionName, bool $withContentOnly = false)
{
if ((isset(parent::$_buffer['modules'][$positionName])) && (parent::$_buffer['modules'][$positionName] === false)) {
return 0;
}
$modules = ModuleHelper::getModules($positionName);
if (!$withContentOnly) {
return \count($modules);
}
// Now we need to count only modules which actually have a content
$result = 0;
$renderer = $this->loadRenderer('module');
foreach ($modules as $module) {
if (empty($module->contentRendered)) {
$renderer->render($module, ['contentOnly' => true]);
}
if (trim($module->content) !== '') {
$result++;
}
}
return $result;
}
/**
* Count the number of child menu items of the current active menu item
*
* @return integer Number of child menu items
*
* @since 1.7.0
*
* @deprecated 4.4 will be removed in 6.0
* Load the active menu item directly and count the children with the php count function
* `$children = count($app->getMenu()->getActive()->getChildren())` beware getActive could be `null`
*/
public function countMenuChildren()
{
$active = CmsFactory::getApplication()->getMenu()->getActive();
return $active ? count($active->getChildren()) : 0;
}
/**
* Load a template file
*
* @param string $directory The name of the template
* @param string $filename The actual filename
*
* @return string The contents of the template
*
* @since 1.7.0
*/
protected function _loadTemplate($directory, $filename)
{
$contents = '';
// Check to see if we have a valid template file
if (is_file($directory . '/' . $filename)) {
// Store the file path
$this->_file = $directory . '/' . $filename;
// Get the file content
ob_start();
require $directory . '/' . $filename;
$contents = ob_get_contents();
ob_end_clean();
}
return $contents;
}
/**
* Fetch the template, and initialise the params
*
* @param array $params Parameters to determine the template
*
* @return HtmlDocument instance of $this to allow chaining
*
* @since 1.7.0
*/
protected function _fetchTemplate($params = [])
{
// Check
$directory = $params['directory'] ?? 'templates';
$filter = InputFilter::getInstance();
$template = $filter->clean($params['template'], 'cmd');
$file = $filter->clean($params['file'], 'cmd');
$inherits = $params['templateInherits'] ?? '';
$baseDir = $directory . '/' . $template;
if (!is_file($directory . '/' . $template . '/' . $file)) {
if ($inherits !== '' && is_file($directory . '/' . $inherits . '/' . $file)) {
$baseDir = $directory . '/' . $inherits;
} else {
$baseDir = $directory . '/system';
$template = 'system';
if ($file !== 'index.php' && !is_file($baseDir . '/' . $file)) {
$file = 'index.php';
}
}
}
// Load the language file for the template
$lang = CmsFactory::getLanguage();
// 1.5 or core then 1.6
$lang->load('tpl_' . $template, JPATH_BASE)
|| ($inherits !== '' && $lang->load('tpl_' . $inherits, JPATH_BASE))
|| $lang->load('tpl_' . $template, $directory . '/' . $template)
|| ($inherits !== '' && $lang->load('tpl_' . $inherits, $directory . '/' . $inherits));
// Assign the variables
$this->baseurl = Uri::base(true);
$this->params = $params['params'] ?? new Registry();
$this->template = $template;
// Load
$this->_template = $this->_loadTemplate($baseDir, $file);
return $this;
}
/**
* Parse a document template
*
* @return HtmlDocument instance of $this to allow chaining
*
* @since 1.7.0
*/
protected function _parseTemplate()
{
$matches = [];
if (preg_match_all('#<jdoc:include\ type="([^"]+)"(.*)\/>#iU', $this->_template, $matches)) {
$messages = [];
$template_tags_first = [];
$template_tags_last = [];
// Step through the jdocs in reverse order.
for ($i = \count($matches[0]) - 1; $i >= 0; $i--) {
$type = $matches[1][$i];
$attribs = empty($matches[2][$i]) ? [] : Utility::parseAttributes($matches[2][$i]);
$name = $attribs['name'] ?? null;
// Separate buffers to be executed first and last
if ($type === 'module' || $type === 'modules') {
$template_tags_first[$matches[0][$i]] = ['type' => $type, 'name' => $name, 'attribs' => $attribs];
} elseif ($type === 'message') {
$messages = [$matches[0][$i] => ['type' => $type, 'name' => $name, 'attribs' => $attribs]];
} else {
$template_tags_last[$matches[0][$i]] = ['type' => $type, 'name' => $name, 'attribs' => $attribs];
}
}
$this->_template_tags = $template_tags_first + $messages + array_reverse($template_tags_last);
}
return $this;
}
/**
* Render pre-parsed template
*
* @return string rendered template
*
* @since 1.7.0
*/
protected function _renderTemplate()
{
$replace = [];
$with = [];
foreach ($this->_template_tags as $jdoc => $args) {
$replace[] = $jdoc;
$with[] = $this->getBuffer($args['type'], $args['name'], $args['attribs']);
}
return str_replace($replace, $with, $this->_template);
}
}