PHP JApplicationCms::getDocument方法代码示例

 /**
  * Add the canonical uri to the head.
  *
  * @return  void
  *
  * @since   3.5
  */
 public function onAfterDispatch()
 {
     $doc = $this->app->getDocument();
     if (!$this->app->isSite() || $doc->getType() !== 'html') {
         return;
     }
     $sefDomain = $this->params->get('domain', '');
     // Don't add a canonical html tag if no alternative domain has added in SEF plugin domain field.
     if (empty($sefDomain)) {
         return;
     }
     // Check if a canonical html tag already exists (for instance, added by a component).
     $canonical = '';
     foreach ($doc->_links as $linkUrl => $link) {
         if (isset($link['relation']) && $link['relation'] === 'canonical') {
             $canonical = $linkUrl;
             break;
         }
     }
     // If a canonical html tag already exists get the canonical and change it to use the SEF plugin domain field.
     if (!empty($canonical)) {
         // Remove current canonical link.
         unset($doc->_links[$canonical]);
         // Set the current canonical link but use the SEF system plugin domain field.
         $canonical = $sefDomain . JUri::getInstance($canonical)->toString(array('path', 'query', 'fragment'));
     } else {
         $canonical = $sefDomain . JUri::getInstance()->toString(array('path', 'query', 'fragment'));
     }
     // Add the canonical link.
     $doc->addHeadLink(htmlspecialchars($canonical), 'canonical');
 }

 /**
  * Add the canonical uri to the head.
  *
  * @return  void
  *
  * @since   3.5
  */
 public function onAfterDispatch()
 {
     $doc = $this->app->getDocument();
     if (!$this->app->isSite() || $doc->getType() !== 'html') {
         return;
     }
     $uri = JUri::getInstance();
     $domain = $this->params->get('domain');
     if ($domain === false || $domain === '') {
         $domain = $uri->toString(array('scheme', 'host', 'port'));
     }
     $link = $domain . JRoute::_('index.php?' . http_build_query($this->app->getRouter()->getVars()), false);
     if (rawurldecode($uri->toString()) !== $link) {
         $doc->addHeadLink(htmlspecialchars($link), 'canonical');
     }
 }

 /**
  * Determines if the message should be displayed
  *
  * @return  boolean
  *
  * @since   __DEPLOY_VERSION__
  */
 private function shouldDisplayMessage()
 {
     // Only on admin app
     if (!$this->app->isAdmin()) {
         return false;
     }
     // Only if authenticated
     if (JFactory::getUser()->guest) {
         return false;
     }
     // Only on HTML documents
     if ($this->app->getDocument()->getType() !== 'html') {
         return false;
     }
     // Only on full page requests
     if ($this->app->input->getCmd('tmpl', 'index') === 'component') {
         return false;
     }
     // Only to com_cpanel
     if ($this->app->input->get('option') != 'com_cpanel') {
         return false;
     }
     return true;
 }

 /**
  * Listener for the `onContentPrepare` event
  *
  * @param   string   $context   The context of the content being passed to the plugin.
  * @param   object   &$article  The article object.  Note $article->text is also available
  * @param   object   &$params   The article params
  * @param   integer  $page      The 'page' number
  *
  * @return  void
  *
  * @since   1.1
  */
 public function onContentPrepare($context, &$article, &$params, $page)
 {
     /*
      * Validate the plugin should run in the current context
      */
     // Has the plugin already triggered?
     if (self::$hasProcessedCategory) {
         return;
     }
     // Context check - This only works for com_content
     if (strpos($context, 'com_content') === false) {
         self::$hasProcessedCategory = true;
         return;
     }
     // Check if the plugin is enabled
     if (JPluginHelper::isEnabled('content', 'joomlarrssb') == false) {
         self::$hasProcessedCategory = true;
         return;
     }
     // Make sure the document is an HTML document
     $document = $this->app->getDocument();
     if ($document->getType() != 'html') {
         self::$hasProcessedCategory = true;
         return;
     }
     /*
      * Start processing the plugin event
      */
     // Set the parameters
     $view = $this->app->input->getCmd('view', '');
     // Check whether we're displaying the plugin in the current view
     if ($this->params->get('view' . ucfirst($view), '1') == '0') {
         self::$hasProcessedCategory = true;
         return;
     }
     // The featured view is not yet supported and the article view never will be
     if (in_array($view, ['article', 'featured'])) {
         self::$hasProcessedCategory = true;
         return;
     }
     // Get the requested category
     /** @var JTableCategory $category */
     $category = JTable::getInstance('Category');
     $category->load($this->app->input->getUint('id'));
     // Build the URL for the plugins to use - the site URL should only be the scheme and host segments, JRoute will take care of the rest
     $siteURL = JUri::getInstance()->toString(['scheme', 'host', 'port']);
     $itemURL = $siteURL . JRoute::_(ContentHelperRoute::getCategoryRoute($category->id));
     // Check if there is a category image to use for the metadata
     $categoryParams = json_decode($category->params, true);
     if (isset($categoryParams['image']) && !empty($categoryParams['image'])) {
         $imageURL = $categoryParams['image'];
         // If the image isn't prefixed with http then assume it's relative and put the site URL in front
         if (strpos($imageURL, 'http') !== 0) {
             $imageURL = substr(JUri::root(), 0, -1) . (substr($imageURL, 0, 1) !== '/' ? '/' : '') . $imageURL;
         }
         if (!$document->getMetaData('og:image')) {
             $document->setMetaData('og:image', $imageURL, 'property');
         }
         if (!$document->getMetaData('twitter:image')) {
             $document->setMetaData('twitter:image', $imageURL);
         }
     }
     $description = !empty($category->metadesc) ? $category->metadesc : strip_tags($category->description);
     // OpenGraph metadata
     if (!$document->getMetaData('og:title')) {
         $document->setMetaData('og:title', $category->title, 'property');
     }
     if (!$document->getMetaData('og:type')) {
         $document->setMetaData('og:type', 'article', 'property');
     }
     if (!$document->getMetaData('og:url')) {
         $document->setMetaData('og:url', $itemURL, 'property');
     }
     // Twitter Card metadata
     if (!$document->getMetaData('twitter:title')) {
         $document->setMetaData('twitter:title', JHtml::_('string.truncate', $category->title, 70, true, false));
     }
     // Add the description too if it isn't empty
     if (!empty($category->description)) {
         if (!$document->getMetaData('og:description')) {
             $document->setMetaData('og:description', $description, 'property');
         }
         if (!$document->getMetaData('twitter:description')) {
             $document->setMetaData('twitter:description', $description);
         }
     }
     // We're done here
     self::$hasProcessedCategory = true;
//.........这里部分代码省略.........

 /**
  * Convert the site URL to fit to the HTTP request.
  *
  * @return  void
  */
 public function onAfterRender()
 {
     if (!$this->app->isSite() || $this->app->get('sef', '0') == '0') {
         return;
     }
     // Replace src links.
     $base = JUri::base(true) . '/';
     $buffer = $this->app->getBody();
     // For feeds we need to search for the URL with domain.
     $prefix = $this->app->getDocument()->getType() === 'feed' ? JUri::root() : '';
     // Replace index.php URI by SEF URI.
     if (strpos($buffer, 'href="' . $prefix . 'index.php?') !== false) {
         preg_match_all('#href="' . $prefix . 'index.php\\?([^"]+)"#m', $buffer, $matches);
         foreach ($matches[1] as $urlQueryString) {
             $buffer = str_replace('href="' . $prefix . 'index.php?' . $urlQueryString . '"', 'href="' . trim($prefix, '/') . JRoute::_('index.php?' . $urlQueryString) . '"', $buffer);
         }
         $this->checkBuffer($buffer);
     }
     // Check for all unknown protocals (a protocol must contain at least one alpahnumeric character followed by a ":").
     $protocols = '[a-zA-Z0-9\\-]+:';
     $attributes = array('href=', 'src=', 'srcset=', 'poster=');
     foreach ($attributes as $attribute) {
         if (strpos($buffer, $attribute) !== false) {
             $regex = '#\\s+' . $attribute . '"(?!/|' . $protocols . '|\\#|\')([^"]*)"#m';
             $buffer = preg_replace($regex, ' ' . $attribute . '"' . $base . '$1"', $buffer);
             $this->checkBuffer($buffer);
         }
     }
     // Replace all unknown protocals in javascript window open events.
     if (strpos($buffer, 'window.open(') !== false) {
         $regex = '#onclick="window.open\\(\'(?!/|' . $protocols . '|\\#)([^/]+[^\']*?\')#m';
         $buffer = preg_replace($regex, 'onclick="window.open(\'' . $base . '$1', $buffer);
         $this->checkBuffer($buffer);
     }
     // Replace all unknown protocols in onmouseover and onmouseout attributes.
     $attributes = array('onmouseover=', 'onmouseout=');
     foreach ($attributes as $attribute) {
         if (strpos($buffer, $attribute) !== false) {
             $regex = '#' . $attribute . '"this.src=([\']+)(?!/|' . $protocols . '|\\#|\')([^"]+)"#m';
             $buffer = preg_replace($regex, $attribute . '"this.src=$1' . $base . '$2"', $buffer);
             $this->checkBuffer($buffer);
         }
     }
     // Replace all unknown protocols in CSS background image.
     if (strpos($buffer, 'style=') !== false) {
         $regex = '#style=\\s*[\'\\"](.*):\\s*url\\s*\\([\'\\"]?(?!/|' . $protocols . '|\\#)([^\\)\'\\"]+)[\'\\"]?\\)#m';
         $buffer = preg_replace($regex, 'style="$1: url(\'' . $base . '$2$3\')', $buffer);
         $this->checkBuffer($buffer);
     }
     // Replace all unknown protocols in OBJECT param tag.
     if (strpos($buffer, '<param') !== false) {
         // OBJECT <param name="xx", value="yy"> -- fix it only inside the <param> tag.
         $regex = '#(<param\\s+)name\\s*=\\s*"(movie|src|url)"[^>]\\s*value\\s*=\\s*"(?!/|' . $protocols . '|\\#|\')([^"]*)"#m';
         $buffer = preg_replace($regex, '$1name="$2" value="' . $base . '$3"', $buffer);
         $this->checkBuffer($buffer);
         // OBJECT <param value="xx", name="yy"> -- fix it only inside the <param> tag.
         $regex = '#(<param\\s+[^>]*)value\\s*=\\s*"(?!/|' . $protocols . '|\\#|\')([^"]*)"\\s*name\\s*=\\s*"(movie|src|url)"#m';
         $buffer = preg_replace($regex, '<param value="' . $base . '$2" name="$3"', $buffer);
         $this->checkBuffer($buffer);
     }
     // Replace all unknown protocols in OBJECT tag.
     if (strpos($buffer, '<object') !== false) {
         $regex = '#(<object\\s+[^>]*)data\\s*=\\s*"(?!/|' . $protocols . '|\\#|\')([^"]*)"#m';
         $buffer = preg_replace($regex, '$1data="' . $base . '$2"', $buffer);
         $this->checkBuffer($buffer);
     }
     // Use the replaced HTML body.
     $this->app->setBody($buffer);
 }