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   1  <?php
   2  require_once  'interface.RSS.inc.php';
   3  require_once  'class.RSSBase.inc.php';
   4  /**
   5  * Class for creating an RSS-feed
   6  * @author Michael Wimmer <flaimo@gmail.com>
   7  * @category flaimo-php
   8  * @copyright Copyright © 2002-2008, Michael Wimmer
   9  * @license GNU General Public License v3
  10  * @link http://code.google.com/p/flaimo-php/
  11  * @package RSS
  12  * @version 2.2.1
  13  */
  14  class RSSBuilder extends RSSBase {
  15  
  16      protected $rss_data = array();
  17      protected $dc_data = array();
  18      protected $sy_data = array();
  19      protected $rss_itemlist;
  20      protected $filename;
  21  
  22      protected $versions = array('0.91' => '091', '1.0' => '100', '2.0' => '200');
  23      protected $version_objects = array();
  24  
  25  	function __construct($encoding = 'ISO-8859-1',
  26                           $about = '',
  27                           $title = '',
  28                           $description = '',
  29                           $image_link = '',
  30                           $category = '',
  31                           $cache = 60) {
  32          parent::setVar($encoding, 'rss_data["encoding"]', 'string');
  33          parent::setVar($about, 'rss_data["about"]', 'string');
  34          parent::setVar($title, 'rss_data["title"]', 'string');
  35          parent::setVar($description, 'rss_data["description"]', 'string');
  36          parent::setVar($image_link, 'rss_data["image_link"]', 'string');
  37          parent::setVar($category, 'rss_data["category"]', 'string');
  38          parent::setVar($cache, 'rss_data["cache"]', 'int');
  39          $this->rss_itemlist = new RSSItemList();
  40          $this->filename = 'rss_' . str_replace(' ','_', $this->getTitle()) . '.xml';
  41      } // end constructor
  42  
  43  	public function addRSSItem($about = '',
  44                                 $title = '',
  45                                 $link = '',
  46                                 $description = '',
  47                                 $subject = '',
  48                                 $date = 0,
  49                                 $author = '',
  50                                 $comments = '',
  51                                 $image = '') {
  52          $this->rss_itemlist->addRSSItem(new RSSItem($about, $title, $link,
  53                                          $description, $subject, $date, $author,
  54                                          $comments, $image));
  55      } // end function
  56  
  57  	public function addDCdata($publisher = '',
  58                                $creator = '',
  59                                $date = 0,
  60                                $language = 'en',
  61                                $rights = '',
  62                                $coverage = '',
  63                                $contributor = '') {
  64          parent::setVar($publisher, 'dc_data["publisher"]', 'string');
  65          parent::setVar($creator, 'dc_data["creator"]', 'string');
  66          parent::setVar($date, 'dc_data["date"]', 'int');
  67  
  68          if (preg_match('(^([a-zA-Z]{2})$)',$language) > 0) {
  69              parent::setVar($language, 'dc_data["language"]', 'string');
  70          } // end if
  71  
  72          parent::setVar($rights, 'dc_data["rights"]', 'string');
  73          parent::setVar($coverage, 'dc_data["coverage"]', 'string');
  74          parent::setVar($contributor, 'dc_data["contributor"]', 'string');
  75      } // end function
  76  
  77  	public function addSYdata($period = 'daily',
  78                                $frequency = 1,
  79                                $base = 0) {
  80  
  81          $periods = array('hourly','daily','weekly','monthly','yearly');
  82          if (in_array($period, $periods)) {
  83              parent::setVar($period, 'sy_data["period"]', 'string');
  84          } // end if
  85  
  86          parent::setVar($frequency, 'sy_data["frequency"]', 'int');
  87          parent::setVar($base, 'sy_data["base"]', 'int');
  88      } // end function
  89  
  90  	public function getEncoding() {
  91          return parent::getVar('rss_data["encoding"]');
  92      } // end function
  93  
  94  	public function getAbout() {
  95          return parent::getVar('rss_data["about"]');
  96      } // end function
  97  
  98  	public function getTitle() {
  99          return parent::getVar('rss_data["title"]');
 100      } // end function
 101  
 102  	public function getDescription() {
 103          return parent::getVar('rss_data["description"]');
 104      } // end function
 105  
 106  	public function getImageLink() {
 107          return parent::getVar('rss_data["image_link"]');
 108      } // end function
 109  
 110  	public function getCategory() {
 111          return parent::getVar('rss_data["category"]');
 112      } // end function
 113  
 114  	public function getCache() {
 115          return parent::getVar('rss_data["cache"]');
 116      } // end function
 117  
 118  
 119  	public function getRSSItemList() {
 120          return parent::getVar('rss_itemlist');
 121      } // end function
 122  
 123  
 124  	public function getDCPublisher() {
 125          return parent::getVar('dc_data["publisher"]');
 126      } // end function
 127  
 128  	public function getDCCreator() {
 129          return parent::getVar('dc_data["creator"]');
 130      } // end function
 131  
 132  	public function getDCDate() {
 133          return parent::getVar('dc_data["date"]');
 134      } // end function
 135  
 136  	public function getDCLanguage() {
 137          return parent::getVar('dc_data["language"]');
 138      } // end function
 139  
 140  	public function getDCRights() {
 141          return parent::getVar('dc_data["rights"]');
 142      } // end function
 143  
 144  	public function getDCCoverage() {
 145          return parent::getVar('dc_data["coverage"]');
 146      } // end function
 147  
 148  	public function getDCContributor() {
 149          return parent::getVar('dc_data["contributor"]');
 150      } // end function
 151  
 152  
 153  	public function getSYPeriod() {
 154          return parent::getVar('sy_data["period"]');
 155      } // end function
 156  
 157  	public function getSYFrequency() {
 158          return parent::getVar('sy_data["frequency"]');
 159      } // end function
 160  
 161  	public function getSYBase() {
 162          return parent::getVar('sy_data["base"]');
 163      } // end function
 164  
 165  	public function getFilename() {
 166          return parent::getVar('filename');
 167      } // end function
 168  
 169  	protected function setVersionObject($version = '0.91') {
 170          if (array_key_exists($version, $this->versions)) {
 171              $classname = 'RSS_V_' . $this->versions[$version];
 172              $this->version_objects[$version] = new $classname($this);
 173          } // end if
 174      } // end function
 175  
 176  	protected function prepareRSSRequest($version = '0.91') {
 177          $this->filename = $this->versions[$version] . '_' . $this->filename;
 178          if (!isset($this->version_objects[$version])) {
 179              $this->setVersionObject($version);
 180          } // end if
 181      } // end function
 182  
 183  	public function getRSSOutput($version = '0.91') {
 184          $this->prepareRSSRequest($version);
 185          return $this->version_objects[$version]->getRSSOutput();
 186      } // end function
 187  
 188  	public function saveRSS($version = '0.91', $path = '') {
 189          $this->prepareRSSRequest($version);
 190          return $this->version_objects[$version]->saveRSS($path);
 191      } // end function
 192  
 193  	public function outputRSS($version = '0.91') {
 194          $this->prepareRSSRequest($version);
 195          return $this->version_objects[$version]->outputRSS();
 196      } // end function
 197  } // end class
 198  ?>