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   1  <?php
   2  /**
   3   * @package        Joomla.Site
   4   * @subpackage    com_newsfeeds
   5   * @copyright    Copyright (C) 2005 - 2012 Open Source Matters, Inc. All rights reserved.
   6   * @license        GNU General Public License version 2 or later; see LICENSE.txt
   7   *
   8   */
   9  
  10  // Check to ensure this file is included in Joomla!
  11  defined('_JEXEC') or die;
  12  
  13  jimport('joomla.application.component.view');
  14  
  15  /**
  16   * HTML View class for the Newsfeeds component
  17   *
  18   * @static
  19   * @package        Joomla.Site
  20   * @subpackage    com_newsfeeds
  21   * @since 1.0
  22   */
  23  class NewsfeedsViewNewsfeed extends JView
  24  {
  25      /**
  26       * @var        object
  27       * @since    1.6
  28       */
  29      protected $state;
  30  
  31      /**
  32       * @var        object
  33       * @since    1.6
  34       */
  35      protected $item;
  36  
  37      /**
  38       * @var        boolean
  39       * @since    1.6
  40       */
  41      protected $print;
  42  
  43      /**
  44       * @since    1.6
  45       */
  46  	function display($tpl = null)
  47      {
  48          // Initialise variables.
  49          $app        = JFactory::getApplication();
  50          $user        = JFactory::getUser();
  51          $dispatcher    = JDispatcher::getInstance();
  52  
  53          // Get view related request variables.
  54          $print = JRequest::getBool('print');
  55  
  56          // Get model data.
  57          $state = $this->get('State');
  58          $item = $this->get('Item');
  59  
  60          if ($item) {
  61          // Get Category Model data
  62          $categoryModel = JModel::getInstance('Category', 'NewsfeedsModel', array('ignore_request' => true));
  63          $categoryModel->setState('category.id', $item->catid);
  64          $categoryModel->setState('list.ordering', 'a.name');
  65          $categoryModel->setState('list.direction', 'asc');
  66          $items = $categoryModel->getItems();
  67          }
  68  
  69          // Check for errors.
  70          // @TODO Maybe this could go into JComponentHelper::raiseErrors($this->get('Errors'))
  71          if (count($errors = $this->get('Errors'))) {
  72              JError::raiseWarning(500, implode("\n", $errors));
  73  
  74              return false;
  75          }
  76  
  77          // Add router helpers.
  78          $item->slug = $item->alias ? ($item->id . ':' . $item->alias) : $item->id;
  79          $item->catslug = $item->category_alias ? ($item->catid . ':' . $item->category_alias) : $item->catid;
  80          $item->parent_slug = $item->category_alias ? ($item->parent_id . ':' . $item->parent_alias) : $item->parent_id;
  81  
  82          // check if cache directory is writeable
  83          $cacheDir = JPATH_CACHE . '/';
  84  
  85          if (!is_writable($cacheDir)) {
  86              JError::raiseNotice('0', JText::_('COM_NEWSFEEDS_CACHE_DIRECTORY_UNWRITABLE'));
  87              return;
  88          }
  89  
  90          // Merge newsfeed params. If this is single-newsfeed view, menu params override newsfeed params
  91          // Otherwise, newsfeed params override menu item params
  92          $params = $state->get('params');
  93          $newsfeed_params = clone $item->params;
  94          $active = $app->getMenu()->getActive();
  95          $temp = clone ($params);
  96  
  97          // Check to see which parameters should take priority
  98          if ($active)
  99          {
 100              $currentLink = $active->link;
 101              // If the current view is the active item and an newsfeed view for this feed, then the menu item params take priority
 102              if (strpos($currentLink, 'view=newsfeed') && (strpos($currentLink, '&id='.(string) $item->id)))
 103              {
 104                  // $item->params are the newsfeed params, $temp are the menu item params
 105                  // Merge so that the menu item params take priority
 106                  $newsfeed_params->merge($temp);
 107                  $item->params = $newsfeed_params;
 108                  // Load layout from active query (in case it is an alternative menu item)
 109                  if (isset($active->query['layout']))
 110                  {
 111                      $this->setLayout($active->query['layout']);
 112                  }
 113              }
 114              else
 115              {
 116                  // Current view is not a single newsfeed, so the newsfeed params take priority here
 117                  // Merge the menu item params with the newsfeed params so that the newsfeed params take priority
 118                  $temp->merge($newsfeed_params);
 119                  $item->params = $temp;
 120                  // Check for alternative layouts (since we are not in a single-newsfeed menu item)
 121                  if ($layout = $item->params->get('newsfeed_layout'))
 122                  {
 123                      $this->setLayout($layout);
 124                  }
 125              }
 126          }
 127          else
 128          {
 129              // Merge so that newsfeed params take priority
 130              $temp->merge($newsfeed_params);
 131              $item->params = $temp;
 132              // Check for alternative layouts (since we are not in a single-newsfeed menu item)
 133              if ($layout = $item->params->get('newsfeed_layout'))
 134              {
 135                  $this->setLayout($layout);
 136              }
 137          }
 138  
 139          $offset = $state->get('list.offset');
 140  
 141          // Check the access to the newsfeed
 142          $levels = $user->getAuthorisedViewLevels();
 143  
 144          if (!in_array($item->access, $levels) or ((in_array($item->access, $levels) and (!in_array($item->category_access, $levels))))) {
 145              JError::raiseWarning(403, JText::_('JERROR_ALERTNOAUTHOR'));
 146              return;
 147          }
 148  
 149          // Get the current menu item
 150          $menus    = $app->getMenu();
 151          $menu    = $menus->getActive();
 152          $params    = $app->getParams();
 153  
 154          // Get the newsfeed
 155          $newsfeed = $item;
 156  
 157          $temp = new JRegistry();
 158          $temp->loadString($item->params);
 159          $params->merge($temp);
 160  
 161          //  get RSS parsed object
 162          $rssDoc = JFactory::getFeedParser($newsfeed->link, $newsfeed->cache_time);
 163  
 164          if ($rssDoc == false) {
 165              $msg = JText::_('COM_NEWSFEEDS_ERRORS_FEED_NOT_RETRIEVED');
 166              $app->redirect(NewsFeedsHelperRoute::getCategoryRoute($newsfeed->catslug), $msg);
 167              return;
 168          }
 169          $lists = array();
 170  
 171          // channel header and link
 172          $newsfeed->channel['title']            = $rssDoc->get_title();
 173          $newsfeed->channel['link']            = $rssDoc->get_link();
 174          $newsfeed->channel['description']    = $rssDoc->get_description();
 175          $newsfeed->channel['language']        = $rssDoc->get_language();
 176  
 177          // channel image if exists
 178          $newsfeed->image['url']        = $rssDoc->get_image_url();
 179          $newsfeed->image['title']    = $rssDoc->get_image_title();
 180          $newsfeed->image['link']    = $rssDoc->get_image_link();
 181          $newsfeed->image['height']    = $rssDoc->get_image_height();
 182          $newsfeed->image['width']    = $rssDoc->get_image_width();
 183  
 184          // items
 185          $newsfeed->items = $rssDoc->get_items();
 186  
 187          // feed elements
 188          $newsfeed->items = array_slice($newsfeed->items, 0, $newsfeed->numarticles);
 189  
 190          // feed display order
 191          $feed_display_order = $params->get('feed_display_order', 'des');
 192          if ($feed_display_order == 'asc') {
 193              $newsfeed->items = array_reverse($newsfeed->items);
 194          }
 195  
 196          //Escape strings for HTML output
 197          $this->pageclass_sfx = htmlspecialchars($params->get('pageclass_sfx'));
 198  
 199          $this->assignRef('params'  , $params  );
 200          $this->assignRef('newsfeed', $newsfeed);
 201          $this->assignRef('state', $state);
 202          $this->assignRef('item', $item);
 203          $this->assignRef('user', $user);
 204          $this->assign('print', $print);
 205  
 206          $this->_prepareDocument();
 207  
 208          parent::display($tpl);
 209      }
 210  
 211      /**
 212       * Prepares the document
 213       *
 214       * @return    void
 215       * @since    1.6
 216       */
 217  	protected function _prepareDocument()
 218      {
 219          $app        = JFactory::getApplication();
 220          $menus        = $app->getMenu();
 221          $pathway    = $app->getPathway();
 222          $title        = null;
 223  
 224          // Because the application sets a default page title,
 225          // we need to get it from the menu item itself
 226          $menu = $menus->getActive();
 227          if ($menu) {
 228              $this->params->def('page_heading', $this->params->get('page_title', $menu->title));
 229          }
 230          else {
 231              $this->params->def('page_heading', JText::_('COM_NEWSFEEDS_DEFAULT_PAGE_TITLE'));
 232          }
 233  
 234          $title = $this->params->get('page_title', '');
 235  
 236          $id = (int) @$menu->query['id'];
 237  
 238          // if the menu item does not concern this newsfeed
 239          if ($menu && ($menu->query['option'] != 'com_newsfeeds' || $menu->query['view'] != 'newsfeed' || $id != $this->item->id))
 240          {
 241              // If this is not a single newsfeed menu item, set the page title to the newsfeed title
 242              if ($this->item->name) {
 243                  $title = $this->item->name;
 244              }
 245  
 246              $path = array(array('title' => $this->item->name, 'link' => ''));
 247              $category = JCategories::getInstance('Newsfeeds')->get($this->item->catid);
 248              while (($menu->query['option'] != 'com_newsfeeds' || $menu->query['view'] == 'newsfeed' || $id != $category->id) && $category->id > 1)
 249              {
 250                  $path[] = array('title' => $category->title, 'link' => NewsfeedsHelperRoute::getCategoryRoute($category->id));
 251                  $category = $category->getParent();
 252              }
 253               $path = array_reverse($path);
 254              foreach($path as $item)
 255              {
 256                  $pathway->addItem($item['title'], $item['link']);
 257              }
 258          }
 259  
 260          if (empty($title)) {
 261              $title = $app->getCfg('sitename');
 262          }
 263          elseif ($app->getCfg('sitename_pagetitles', 0) == 1) {
 264              $title = JText::sprintf('JPAGETITLE', $app->getCfg('sitename'), $title);
 265          }
 266          elseif ($app->getCfg('sitename_pagetitles', 0) == 2) {
 267              $title = JText::sprintf('JPAGETITLE', $title, $app->getCfg('sitename'));
 268          }
 269          if (empty($title)) {
 270              $title = $this->item->name;
 271          }
 272          $this->document->setTitle($title);
 273  
 274          if ($this->item->metadesc)
 275          {
 276              $this->document->setDescription($this->item->metadesc);
 277          }
 278          elseif (!$this->item->metadesc && $this->params->get('menu-meta_description'))
 279          {
 280              $this->document->setDescription($this->params->get('menu-meta_description'));
 281          }
 282  
 283          if ($this->item->metakey)
 284          {
 285              $this->document->setMetadata('keywords', $this->item->metakey);
 286          }
 287          elseif (!$this->item->metakey && $this->params->get('menu-meta_keywords'))
 288          {
 289              $this->document->setMetadata('keywords', $this->params->get('menu-meta_keywords'));
 290          }
 291  
 292          if ($this->params->get('robots'))
 293          {
 294              $this->document->setMetadata('robots', $this->params->get('robots'));
 295          }
 296  
 297          if ($app->getCfg('MetaTitle') == '1') {
 298              $this->document->setMetaData('title', $this->item->name);
 299          }
 300  
 301          if ($app->getCfg('MetaAuthor') == '1') {
 302              $this->document->setMetaData('author', $this->item->author);
 303          }
 304  
 305          $mdata = $this->item->metadata->toArray();
 306          foreach ($mdata as $k => $v)
 307          {
 308              if ($v) {
 309                  $this->document->setMetadata($k, $v);
 310              }
 311          }
 312      }
 313  }