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<?php /** * @version $Id: af.lib.rdf.php v.2.1b7 2007-11-26 16:44:59Z GMT-3 $ * @package ArtForms 2.1b7 * @subpackage ArtForms Component * @original name code from RSS headline grabber * @original author Yelvington and Changes by Bob Zoller (bob@kludgebox.com) * @copyright Copyright (C) 2007 InterJoomla. All rights reserved. * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU/GPL version 2, see LICENSE.txt * This version may have been modified pursuant to the * GNU General Public License, and as distributed it includes or is derivative * of works licensed under the GNU General Public License or other free * or open source software licenses. * See COPYRIGHT.txt for copyright notices and details. / defined( '_JEXEC' ) or die( 'Restricted access' ); /* RSS/XML news feed headline grabber / class afRDF {// A util Class for reading in RDF XML Headline style files... function createRDF($rdf, $agelimit = 30, $timeout = 10) { unlink(JPATH_SITE.DS.'cache'.DS.basename($rdf)); $errno = ''; $errstr = ''; $cachefile = basename($rdf); // convert agelimit to seconds $agelimit = 60; $timestamp = @filectime($cachefile); $age = time() - $timestamp; if($age > $agelimit) { $url = parse_url($rdf); $fp = fsockopen($url['host'], "80", $errno, $errstr, $timeout); if (!$fp) return; //just quit on error else { $local = @fopen(JPATH_SITE.DS.'cache'.DS.$cachefile, 'w'); if (!$local) return; //just quit on error fputs($fp, "GET " . $url['path'] . " HTTP/1.1\r\nHost: " . $url['host'] . "\r\n\r\n"); //while(!feof($fp)) fwrite($local, fgets($fp, 128)); fclose($local); } } } // This function will read the data in from the passed in URL if it is required. function getRDF($url, $timeToLive) { $timeToLive = 60; // convert timeToLive into secs $basename = str_replace('?', '&', JPATH_SITE.DS.'cache'.DS.basename($url)) ; // Get the basename of URL for the cached filename. We do this here, cos we need to do it more than once $this->createRDF($url); $timestamp = @filectime($basename); // Get the timestamp of the file. $age = (time() - $timestamp); // Work out how old the file is that we have already.. // If the file is too old, then we need to refresh it from the URL if($age > $timeToLive) { $ip = gethostbyname(substr($url,strpos($url,'jartforms'),strpos($url,'.com.ar')-3)); if (strcasecmp($ip, substr($url,strpos($url,'jartforms'),strpos($url,'.com.ar')-3)) == 0) { return false; } $rdfHandle = @fopen($url,"r"); // Open the RDF file for reading if(!$rdfHandle)return false; $rdfData = fread($rdfHandle, 64000) ; // Read in the RDF data. 64K limit on filesize, should be enough. fclose($rdfHandle); // Close the Data feed // OK there is more recent news, so rewrite the cached news file.. $localFile = fopen($basename, "w") ; // Open the local file for writing fwrite($localFile, $rdfData ) ; // Pump in all the data into the file. fclose($localFile) ; // Close the local file after writing to it } // end IF return true; } // end getRDF // Removes spurious tags from the link that we don't want function formatLink($item) { $link = ereg_replace(".<link>","",$item); // Remove the leading <link> tags $link = ereg_replace("</link>.","",$link); // Remove the closing </link> tags $title = ereg_replace(".<title>","",$item); // Remove the leading <title> tags $title = ereg_replace("</title>.","",$title); // Remove the closing </title> tags if ($title) // If we got anything left after all that trimming... // Choose how you want the link formatted here... This has no underline, and opens in a new window... echo "<a href=\"$link\" style=\"text-decoration:none\" target=\"_blank\">".htmlspecialchars($title, ENT_QUOTES)."</a><br />"; } // end formatLink function displayRDF($rdffile, $randomise = TRUE, $numLinks = 3, $title) { $rdf = JPATH_SITE.DS.'cache'.DS.$rdffile; $localFile = fopen($rdf, "r"); // OK open up the local rdf file for reading clearstatcache() ; // Clear out the file size cache if (filesize($rdf) <= 0) { return false; } $rdfData = fread($localFile, filesize($rdf)); // Read in the data to memory fclose($localFile); // Close down the open file. // Get rid of all spurious leading and closing rdf data from the data in memory $rdfData = ereg_replace("<\?xml./image>","",$rdfData); $rdfData = ereg_replace("</rdf.","",$rdfData); $rdfData = ereg_replace("[\r,\n]", "", $rdfData); $rdfData = chop($rdfData); // Strip any whitespace from the end of the string $rdfArray = explode("</item>",$rdfData); // Split up the string into an array to make it more manageable $max = sizeof($rdfArray); // See how many items we have got // Echo the font formatting... This is just HTML to make it look a little pretty if ($max > 1) { // echo "<p style=\"font-family: verdana, arial, helvetica;\">" ; // We need to do different stuff if we are to randomise the links... // The links will be randomised so we want a different message to the user.... // The max -1 is to compensate for the 0 indexed array structure.. if ($randomise) { echo "Displaying $numLinks (of " . ($max-1) . ") random headlines from $rdf... Updated every 30 minutes.. Refresh for some more!<br />"; $links = array_rand( $rdfArray, $numLinks ); // OK select the keys of the links at random from the array.. $upperLimit = $numLinks ; // Set this to the number of links to be displayed } else { if (!empty($title)) { echo $title; } $links = array_keys($rdfArray) ; // Give the keys to be displayed all the links we have parsed.. $upperLimit = $max ; // Set the upper Limit to be all of the headlines } // Display the links... for ($i = 0 ; $i < $upperLimit ; $i++ ) { $this->formatLink($rdfArray[$links[$i]]); } // Close the font formatting like a good html coder ;) } return true; } function parseRSS($url) { @require_once(JPATH_SITE.DS.'includes'.DS.'domit'.DS.'xml_domit_rss.php'); $rssdoc =& new xml_domit_rss_document($url); $numChannels = $rssdoc->getChannelCount(); for ($i = 0; $i < $numChannels; $i++) { $currChannel =& $rssdoc->getChannel($i); //iterate through item elements $numItems = $currChannel->getItemCount(); echo '<ul>'; for ($j = 0; $j < $numItems; $j++) { $currItem =& $currChannel->getItem($j); //echo item info echo "<li><a href=\"" . $currItem->getLink() . "\">".$currItem->getTitle() . "</a></li>\n\n"; } echo '</ul>'; } } } ?>

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