<?php
/**
* Joomla! Content Management System
*
* @copyright Copyright (C) 2005 - 2019 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\CMS\Document;
defined('JPATH_PLATFORM') or die;
use Joomla\CMS\Date\Date;
/**
* Document class, provides an easy interface to parse and display a document
*
* @since 1.7.0
*/
class Document
{
/**
* Document title
*
* @var string
* @since 1.7.0
*/
public $title = '';
/**
* Document description
*
* @var string
* @since 1.7.0
*/
public $description = '';
/**
* Document full URL
*
* @var string
* @since 1.7.0
*/
public $link = '';
/**
* Document base URL
*
* @var string
* @since 1.7.0
*/
public $base = '';
/**
* Contains the document language setting
*
* @var string
* @since 1.7.0
*/
public $language = 'en-gb';
/**
* Contains the document direction setting
*
* @var string
* @since 1.7.0
*/
public $direction = 'ltr';
/**
* Document generator
*
* @var string
* @since 1.7.0
*/
public $_generator = 'Joomla! - Open Source Content Management';
/**
* Document modified date
*
* @var string|Date
* @since 1.7.0
*/
public $_mdate = '';
/**
* Tab string
*
* @var string
* @since 1.7.0
*/
public $_tab = "\11";
/**
* Contains the line end string
*
* @var string
* @since 1.7.0
*/
public $_lineEnd = "\12";
/**
* Contains the character encoding string
*
* @var string
* @since 1.7.0
*/
public $_charset = 'utf-8';
/**
* Document mime type
*
* @var string
* @since 1.7.0
*/
public $_mime = '';
/**
* Document namespace
*
* @var string
* @since 1.7.0
*/
public $_namespace = '';
/**
* Document profile
*
* @var string
* @since 1.7.0
*/
public $_profile = '';
/**
* Array of linked scripts
*
* @var array
* @since 1.7.0
*/
public $_scripts = array();
/**
* Array of scripts placed in the header
*
* @var array
* @since 1.7.0
*/
public $_script = array();
/**
* Array of scripts options
*
* @var array
*/
protected $scriptOptions = array();
/**
* Array of linked style sheets
*
* @var array
* @since 1.7.0
*/
public $_styleSheets = array();
/**
* Array of included style declarations
*
* @var array
* @since 1.7.0
*/
public $_style = array();
/**
* Array of meta tags
*
* @var array
* @since 1.7.0
*/
public $_metaTags = array();
/**
* The rendering engine
*
* @var object
* @since 1.7.0
*/
public $_engine = null;
/**
* The document type
*
* @var string
* @since 1.7.0
*/
public $_type = null;
/**
* Array of buffered output
*
* @var mixed (depends on the renderer)
* @since 1.7.0
*/
public static $_buffer = null;
/**
* Document instances container.
*
* @var array
* @since 1.7.3
*/
protected static $instances = array();
/**
* Media version added to assets
*
* @var string
* @since 3.2
*/
protected $mediaVersion = null;
/**
* Class constructor.
*
* @param array $options Associative array of options
*
* @since 1.7.0
*/
public function __construct($options = array())
{
if (array_key_exists('lineend', $options))
{
$this->setLineEnd($options['lineend']);
}
if (array_key_exists('charset', $options))
{
$this->setCharset($options['charset']);
}
if (array_key_exists('language', $options))
{
$this->setLanguage($options['language']);
}
if (array_key_exists('direction', $options))
{
$this->setDirection($options['direction']);
}
if (array_key_exists('tab', $options))
{
$this->setTab($options['tab']);
}
if (array_key_exists('link', $options))
{
$this->setLink($options['link']);
}
if (array_key_exists('base', $options))
{
$this->setBase($options['base']);
}
if (array_key_exists('mediaversion', $options))
{
$this->setMediaVersion($options['mediaversion']);
}
}
/**
* Returns the global Document object, only creating it
* if it doesn't already exist.
*
* @param string $type The document type to instantiate
* @param array $attributes Array of attributes
*
* @return object The document object.
*
* @since 1.7.0
*/
public static function getInstance($type = 'html', $attributes = array())
{
$signature = serialize(array($type, $attributes));
if (empty(self::$instances[$signature]))
{
$type = preg_replace('/[^A-Z0-9_\.-]/i', '', $type);
$ntype = null;
// Determine the path and class
$class = __NAMESPACE__ . '\\' . ucfirst($type) . 'Document';
if (!class_exists($class))
{
$class = 'JDocument' . ucfirst($type);
}
if (!class_exists($class))
{
// @deprecated 4.0 - Document objects should be autoloaded instead
$path = __DIR__ . '/' . $type . '/' . $type . '.php';
\JLoader::register($class, $path);
if (class_exists($class))
{
\JLog::add('Non-autoloadable Document subclasses are deprecated, support will be removed in 4.0.', \JLog::WARNING, 'deprecated');
}
// Default to the raw format
else
{
$ntype = $type;
$class = 'JDocumentRaw';
}
}
$instance = new $class($attributes);
self::$instances[$signature] = $instance;
if (!is_null($ntype))
{
// Set the type to the Document type originally requested
$instance->setType($ntype);
}
}
return self::$instances[$signature];
}
/**
* Set the document type
*
* @param string $type Type document is to set to
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setType($type)
{
$this->_type = $type;
return $this;
}
/**
* Returns the document type
*
* @return string
*
* @since 1.7.0
*/
public function getType()
{
return $this->_type;
}
/**
* Get the contents of the document buffer
*
* @return mixed
*
* @since 1.7.0
*/
public function getBuffer()
{
return self::$_buffer;
}
/**
* Set the contents of the document buffer
*
* @param string $content The content to be set in the buffer.
* @param array $options Array of optional elements.
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setBuffer($content, $options = array())
{
self::$_buffer = $content;
return $this;
}
/**
* Gets a meta tag.
*
* @param string $name Name of the meta HTML tag
* @param string $attribute Attribute to use in the meta HTML tag
*
* @return string
*
* @since 1.7.0
*/
public function getMetaData($name, $attribute = 'name')
{
// B/C old http_equiv parameter.
if (!is_string($attribute))
{
$attribute = $attribute == true ? 'http-equiv' : 'name';
}
if ($name == 'generator')
{
$result = $this->getGenerator();
}
elseif ($name == 'description')
{
$result = $this->getDescription();
}
else
{
$result = isset($this->_metaTags[$attribute]) && isset($this->_metaTags[$attribute][$name]) ? $this->_metaTags[$attribute][$name] : '';
}
return $result;
}
/**
* Sets or alters a meta tag.
*
* @param string $name Name of the meta HTML tag
* @param mixed $content Value of the meta HTML tag as array or string
* @param string $attribute Attribute to use in the meta HTML tag
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setMetaData($name, $content, $attribute = 'name')
{
// Pop the element off the end of array if target function expects a string or this http_equiv parameter.
if (is_array($content) && (in_array($name, array('generator', 'description')) || !is_string($attribute)))
{
$content = array_pop($content);
}
// B/C old http_equiv parameter.
if (!is_string($attribute))
{
$attribute = $attribute == true ? 'http-equiv' : 'name';
}
if ($name == 'generator')
{
$this->setGenerator($content);
}
elseif ($name == 'description')
{
$this->setDescription($content);
}
else
{
$this->_metaTags[$attribute][$name] = $content;
}
return $this;
}
/**
* Adds a linked script to the page
*
* @param string $url URL to the linked script.
* @param array $options Array of options. Example: array('version' => 'auto', 'conditional' => 'lt IE 9')
* @param array $attribs Array of attributes. Example: array('id' => 'scriptid', 'async' => 'async', 'data-test' => 1)
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
* @deprecated 4.0 The (url, mime, defer, async) method signature is deprecated, use (url, options, attributes) instead.
*/
public function addScript($url, $options = array(), $attribs = array())
{
// B/C before 3.7.0
if (!is_array($options) && (!is_array($attribs) || $attribs === array()))
{
\JLog::add('The addScript method signature used has changed, use (url, options, attributes) instead.', \JLog::WARNING, 'deprecated');
$argList = func_get_args();
$options = array();
$attribs = array();
// Old mime type parameter.
if (!empty($argList[1]))
{
$attribs['mime'] = $argList[1];
}
// Old defer parameter.
if (isset($argList[2]) && $argList[2])
{
$attribs['defer'] = true;
}
// Old async parameter.
if (isset($argList[3]) && $argList[3])
{
$attribs['async'] = true;
}
}
// Default value for type.
if (!isset($attribs['type']) && !isset($attribs['mime']))
{
$attribs['type'] = 'text/javascript';
}
$this->_scripts[$url] = isset($this->_scripts[$url]) ? array_replace($this->_scripts[$url], $attribs) : $attribs;
$this->_scripts[$url]['options'] = isset($this->_scripts[$url]['options']) ? array_replace($this->_scripts[$url]['options'], $options) : $options;
return $this;
}
/**
* Adds a linked script to the page with a version to allow to flush it. Ex: myscript.js?54771616b5bceae9df03c6173babf11d
* If not specified Joomla! automatically handles versioning
*
* @param string $url URL to the linked script.
* @param array $options Array of options. Example: array('version' => 'auto', 'conditional' => 'lt IE 9')
* @param array $attribs Array of attributes. Example: array('id' => 'scriptid', 'async' => 'async', 'data-test' => 1)
*
* @return Document instance of $this to allow chaining
*
* @since 3.2
* @deprecated 4.0 This method is deprecated, use addScript(url, options, attributes) instead.
*/
public function addScriptVersion($url, $options = array(), $attribs = array())
{
\JLog::add('The method is deprecated, use addScript(url, attributes, options) instead.', \JLog::WARNING, 'deprecated');
// B/C before 3.7.0
if (!is_array($options) && (!is_array($attribs) || $attribs === array()))
{
$argList = func_get_args();
$options = array();
$attribs = array();
// Old version parameter.
$options['version'] = isset($argList[1]) && !is_null($argList[1]) ? $argList[1] : 'auto';
// Old mime type parameter.
if (!empty($argList[2]))
{
$attribs['mime'] = $argList[2];
}
// Old defer parameter.
if (isset($argList[3]) && $argList[3])
{
$attribs['defer'] = true;
}
// Old async parameter.
if (isset($argList[4]) && $argList[4])
{
$attribs['async'] = true;
}
}
// Default value for version.
else
{
$options['version'] = 'auto';
}
return $this->addScript($url, $options, $attribs);
}
/**
* Adds a script to the page
*
* @param string $content Script
* @param string $type Scripting mime (defaults to 'text/javascript')
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function addScriptDeclaration($content, $type = 'text/javascript')
{
if (!isset($this->_script[strtolower($type)]))
{
$this->_script[strtolower($type)] = $content;
}
else
{
$this->_script[strtolower($type)] .= chr(13) . $content;
}
return $this;
}
/**
* Add option for script
*
* @param string $key Name in Storage
* @param mixed $options Scrip options as array or string
* @param bool $merge Whether merge with existing (true) or replace (false)
*
* @return Document instance of $this to allow chaining
*
* @since 3.5
*/
public function addScriptOptions($key, $options, $merge = true)
{
if (empty($this->scriptOptions[$key]))
{
$this->scriptOptions[$key] = array();
}
if ($merge && is_array($options))
{
$this->scriptOptions[$key] = array_replace_recursive($this->scriptOptions[$key], $options);
}
else
{
$this->scriptOptions[$key] = $options;
}
return $this;
}
/**
* Get script(s) options
*
* @param string $key Name in Storage
*
* @return array Options for given $key, or all script options
*
* @since 3.5
*/
public function getScriptOptions($key = null)
{
if ($key)
{
return (empty($this->scriptOptions[$key])) ? array() : $this->scriptOptions[$key];
}
else
{
return $this->scriptOptions;
}
}
/**
* Adds a linked stylesheet to the page
*
* @param string $url URL to the linked style sheet
* @param array $options Array of options. Example: array('version' => 'auto', 'conditional' => 'lt IE 9')
* @param array $attribs Array of attributes. Example: array('id' => 'stylesheet', 'data-test' => 1)
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
* @deprecated 4.0 The (url, mime, media, attribs) method signature is deprecated, use (url, options, attributes) instead.
*/
public function addStyleSheet($url, $options = array(), $attribs = array())
{
// B/C before 3.7.0
if (is_string($options))
{
\JLog::add('The addStyleSheet method signature used has changed, use (url, options, attributes) instead.', \JLog::WARNING, 'deprecated');
$argList = func_get_args();
$options = array();
$attribs = array();
// Old mime type parameter.
if (!empty($argList[1]))
{
$attribs['type'] = $argList[1];
}
// Old media parameter.
if (isset($argList[2]) && $argList[2])
{
$attribs['media'] = $argList[2];
}
// Old attribs parameter.
if (isset($argList[3]) && $argList[3])
{
$attribs = array_replace($attribs, $argList[3]);
}
}
// Default value for type.
if (!isset($attribs['type']) && !isset($attribs['mime']))
{
$attribs['type'] = 'text/css';
}
$this->_styleSheets[$url] = isset($this->_styleSheets[$url]) ? array_replace($this->_styleSheets[$url], $attribs) : $attribs;
if (isset($this->_styleSheets[$url]['options']))
{
$this->_styleSheets[$url]['options'] = array_replace($this->_styleSheets[$url]['options'], $options);
}
else
{
$this->_styleSheets[$url]['options'] = $options;
}
return $this;
}
/**
* Adds a linked stylesheet version to the page. Ex: template.css?54771616b5bceae9df03c6173babf11d
* If not specified Joomla! automatically handles versioning
*
* @param string $url URL to the linked style sheet
* @param array $options Array of options. Example: array('version' => 'auto', 'conditional' => 'lt IE 9')
* @param array $attribs Array of attributes. Example: array('id' => 'stylesheet', 'data-test' => 1)
*
* @return Document instance of $this to allow chaining
*
* @since 3.2
* @deprecated 4.0 This method is deprecated, use addStyleSheet(url, options, attributes) instead.
*/
public function addStyleSheetVersion($url, $options = array(), $attribs = array())
{
\JLog::add('The method is deprecated, use addStyleSheet(url, attributes, options) instead.', \JLog::WARNING, 'deprecated');
// B/C before 3.7.0
if (!is_array($options) && (!is_array($attribs) || $attribs === array()))
{
$argList = func_get_args();
$options = array();
$attribs = array();
// Old version parameter.
$options['version'] = isset($argList[1]) && !is_null($argList[1]) ? $argList[1] : 'auto';
// Old mime type parameter.
if (!empty($argList[2]))
{
$attribs['mime'] = $argList[2];
}
// Old media parameter.
if (isset($argList[3]) && $argList[3])
{
$attribs['media'] = $argList[3];
}
// Old attribs parameter.
if (isset($argList[4]) && $argList[4])
{
$attribs = array_replace($attribs, $argList[4]);
}
}
// Default value for version.
else
{
$options['version'] = 'auto';
}
return $this->addStyleSheet($url, $options, $attribs);
}
/**
* Adds a stylesheet declaration to the page
*
* @param string $content Style declarations
* @param string $type Type of stylesheet (defaults to 'text/css')
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function addStyleDeclaration($content, $type = 'text/css')
{
if (!isset($this->_style[strtolower($type)]))
{
$this->_style[strtolower($type)] = $content;
}
else
{
$this->_style[strtolower($type)] .= chr(13) . $content;
}
return $this;
}
/**
* Sets the document charset
*
* @param string $type Charset encoding string
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setCharset($type = 'utf-8')
{
$this->_charset = $type;
return $this;
}
/**
* Returns the document charset encoding.
*
* @return string
*
* @since 1.7.0
*/
public function getCharset()
{
return $this->_charset;
}
/**
* Sets the global document language declaration. Default is English (en-gb).
*
* @param string $lang The language to be set
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setLanguage($lang = 'en-gb')
{
$this->language = strtolower($lang);
return $this;
}
/**
* Returns the document language.
*
* @return string
*
* @since 1.7.0
*/
public function getLanguage()
{
return $this->language;
}
/**
* Sets the global document direction declaration. Default is left-to-right (ltr).
*
* @param string $dir The language direction to be set
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setDirection($dir = 'ltr')
{
$this->direction = strtolower($dir);
return $this;
}
/**
* Returns the document direction declaration.
*
* @return string
*
* @since 1.7.0
*/
public function getDirection()
{
return $this->direction;
}
/**
* Sets the title of the document
*
* @param string $title The title to be set
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setTitle($title)
{
$this->title = $title;
return $this;
}
/**
* Return the title of the document.
*
* @return string
*
* @since 1.7.0
*/
public function getTitle()
{
return $this->title;
}
/**
* Set the assets version
*
* @param string $mediaVersion Media version to use
*
* @return Document instance of $this to allow chaining
*
* @since 3.2
*/
public function setMediaVersion($mediaVersion)
{
$this->mediaVersion = strtolower($mediaVersion);
return $this;
}
/**
* Return the media version
*
* @return string
*
* @since 3.2
*/
public function getMediaVersion()
{
return $this->mediaVersion;
}
/**
* Sets the base URI of the document
*
* @param string $base The base URI to be set
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setBase($base)
{
$this->base = $base;
return $this;
}
/**
* Return the base URI of the document.
*
* @return string
*
* @since 1.7.0
*/
public function getBase()
{
return $this->base;
}
/**
* Sets the description of the document
*
* @param string $description The description to set
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setDescription($description)
{
$this->description = $description;
return $this;
}
/**
* Return the description of the document.
*
* @return string
*
* @since 1.7.0
*/
public function getDescription()
{
return $this->description;
}
/**
* Sets the document link
*
* @param string $url A url
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setLink($url)
{
$this->link = $url;
return $this;
}
/**
* Returns the document base url
*
* @return string
*
* @since 1.7.0
*/
public function getLink()
{
return $this->link;
}
/**
* Sets the document generator
*
* @param string $generator The generator to be set
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setGenerator($generator)
{
$this->_generator = $generator;
return $this;
}
/**
* Returns the document generator
*
* @return string
*
* @since 1.7.0
*/
public function getGenerator()
{
return $this->_generator;
}
/**
* Sets the document modified date
*
* @param string|Date $date The date to be set
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
* @throws \InvalidArgumentException
*/
public function setModifiedDate($date)
{
if (!is_string($date) && !($date instanceof Date))
{
throw new \InvalidArgumentException(
sprintf(
'The $date parameter of %1$s must be a string or a %2$s instance, a %3$s was given.',
__METHOD__ . '()',
'Joomla\\CMS\\Date\\Date',
gettype($date) === 'object' ? (get_class($date) . ' instance') : gettype($date)
)
);
}
$this->_mdate = $date;
return $this;
}
/**
* Returns the document modified date
*
* @return string|Date
*
* @since 1.7.0
*/
public function getModifiedDate()
{
return $this->_mdate;
}
/**
* Sets the document MIME encoding that is sent to the browser.
*
* This usually will be text/html because most browsers cannot yet
* accept the proper mime settings for XHTML: application/xhtml+xml
* and to a lesser extent application/xml and text/xml. See the W3C note
* ({@link http://www.w3.org/TR/xhtml-media-types/
* http://www.w3.org/TR/xhtml-media-types/}) for more details.
*
* @param string $type The document type to be sent
* @param boolean $sync Should the type be synced with HTML?
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*
* @link http://www.w3.org/TR/xhtml-media-types
*/
public function setMimeEncoding($type = 'text/html', $sync = true)
{
$this->_mime = strtolower($type);
// Syncing with metadata
if ($sync)
{
$this->setMetaData('content-type', $type . '; charset=' . $this->_charset, true);
}
return $this;
}
/**
* Return the document MIME encoding that is sent to the browser.
*
* @return string
*
* @since 1.7.0
*/
public function getMimeEncoding()
{
return $this->_mime;
}
/**
* Sets the line end style to Windows, Mac, Unix or a custom string.
*
* @param string $style "win", "mac", "unix" or custom string.
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setLineEnd($style)
{
switch ($style)
{
case 'win':
$this->_lineEnd = "\15\12";
break;
case 'unix':
$this->_lineEnd = "\12";
break;
case 'mac':
$this->_lineEnd = "\15";
break;
default:
$this->_lineEnd = $style;
}
return $this;
}
/**
* Returns the lineEnd
*
* @return string
*
* @since 1.7.0
*/
public function _getLineEnd()
{
return $this->_lineEnd;
}
/**
* Sets the string used to indent HTML
*
* @param string $string String used to indent ("\11", "\t", ' ', etc.).
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function setTab($string)
{
$this->_tab = $string;
return $this;
}
/**
* Returns a string containing the unit for indenting HTML
*
* @return string
*
* @since 1.7.0
*/
public function _getTab()
{
return $this->_tab;
}
/**
* Load a renderer
*
* @param string $type The renderer type
*
* @return DocumentRenderer
*
* @since 1.7.0
* @throws \RuntimeException
*/
public function loadRenderer($type)
{
// Determine the path and class
$class = __NAMESPACE__ . '\\Renderer\\' . ucfirst($this->getType()) . '\\' . ucfirst($type) . 'Renderer';
if (!class_exists($class))
{
$class = 'JDocumentRenderer' . ucfirst($this->getType()) . ucfirst($type);
}
if (!class_exists($class))
{
// "Legacy" class name structure
$class = 'JDocumentRenderer' . $type;
if (!class_exists($class))
{
// @deprecated 4.0 - Non-autoloadable class support is deprecated, only log a message though if a file is found
$path = __DIR__ . '/' . $this->getType() . '/renderer/' . $type . '.php';
if (!file_exists($path))
{
throw new \RuntimeException('Unable to load renderer class', 500);
}
\JLoader::register($class, $path);
\JLog::add('Non-autoloadable JDocumentRenderer subclasses are deprecated, support will be removed in 4.0.', \JLog::WARNING, 'deprecated');
// If the class still doesn't exist after including the path, we've got issues
if (!class_exists($class))
{
throw new \RuntimeException('Unable to load renderer class', 500);
}
}
}
return new $class($this);
}
/**
* Parses the document and prepares the buffers
*
* @param array $params The array of parameters
*
* @return Document instance of $this to allow chaining
*
* @since 1.7.0
*/
public function parse($params = array())
{
return $this;
}
/**
* Outputs the document
*
* @param boolean $cache If true, cache the output
* @param array $params Associative array of attributes
*
* @return void The rendered data
*
* @since 1.7.0
*/
public function render($cache = false, $params = array())
{
$app = \JFactory::getApplication();
if ($mdate = $this->getModifiedDate())
{
if (!($mdate instanceof Date))
{
$mdate = new Date($mdate);
}
$app->modifiedDate = $mdate;
}
$app->mimeType = $this->_mime;
$app->charSet = $this->_charset;
}
}