[226] | 1 | <?php |
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| 2 | /** |
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| 3 | * RSS-Feed MediaWiki extension |
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| 4 | * |
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| 5 | * @file |
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| 6 | * @ingroup Extensions |
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| 7 | * @version 1.5 |
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| 8 | * @author mutante, Duesentrieb, Rdb, Mafs, Alxndr, Cmreigrut |
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| 9 | * @copyright © mutante, Duesentrieb, Rdb, Mafs, Alxndr, Cmreigrut |
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| 10 | * @link http://www.mediawiki.org/wiki/Extension:RSS Documentation |
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| 11 | * |
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| 12 | * Requires: |
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| 13 | * # magpie rss parser <http://magpierss.sourceforge.net/> |
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| 14 | * # iconv <http://www.gnu.org/software/libiconv/>, see also <http://www.php.net/iconv> |
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| 15 | * |
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| 16 | * 07.05.2008 compatible/checked with MediaWiki 1.12 |
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| 17 | */ |
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| 18 | |
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| 19 | if( !defined( 'MEDIAWIKI' ) ) { |
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| 20 | die( "This is not a valid entry point.\n" ); |
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| 21 | } |
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| 22 | |
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| 23 | $wgExtensionCredits['parserhook'][] = array( |
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| 24 | 'name' => 'RSS feed', |
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| 25 | 'author' => array('mutante', 'Duesentrieb', 'Rdb', 'Mafs', 'Alxndr', 'Wikinaut', 'Cmreigrut'), |
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| 26 | 'version' => '1.5', |
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| 27 | 'url' => 'http://www.mediawiki.org/wiki/Extension:RSS', |
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| 28 | 'description' => 'Displays an RSS feed on a wiki page' |
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| 29 | ); |
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| 30 | |
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| 31 | define('MAGPIE_OUTPUT_ENCODING', 'UTF-8'); |
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| 32 | |
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| 33 | #change this according to your magpie installation! |
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| 34 | #require_once('/var/alternc/html/a/admin/redcta.org.ar/www/phase3/extensions/magpierss/rss_fetch.inc'); |
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| 35 | if ( ! @include_once( '/var/alternc/html/a/admin/redcta.org.ar/www/phase3/extensions/magpierss/rss_fetch.inc' ) ) { |
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| 36 | return "<br /><b>Error: Missing magpierss-0.71.1. Download from <a href=\"http://magpierss.sourceforge.net/\">Sourceforge</a> ". |
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| 37 | "and unpack to extensions/rss</b><br />"; |
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| 38 | } |
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| 39 | |
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| 40 | // Avoid unstubbing $wgParser too early on modern (1.12+) MW versions, as per r35980 |
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| 41 | if ( defined( 'MW_SUPPORTS_PARSERFIRSTCALLINIT' ) ) { |
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| 42 | $wgHooks['ParserFirstCallInit'][] = 'wfRssExtension'; |
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| 43 | } else { |
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| 44 | $wgExtensionFunctions[] = 'wfRssExtension'; |
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| 45 | } |
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| 46 | |
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| 47 | #Extension hook callback function |
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| 48 | function wfRssExtension() { |
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| 49 | global $wgParser; |
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| 50 | |
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| 51 | #Install parser hook for <rss> tags |
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| 52 | $wgParser->setHook( 'rss', 'renderRss' ); |
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| 53 | return true; |
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| 54 | } |
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| 55 | |
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| 56 | #Parser hook callback function |
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| 57 | function renderRss( $input ) { |
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| 58 | global $wgOutputEncoding, $wgParser; |
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| 59 | |
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| 60 | // Kill parser cache |
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| 61 | $wgParser->disableCache(); |
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| 62 | |
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| 63 | if ( !$input ) return ''; #if <rss>-section is empty, return nothing |
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| 64 | |
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| 65 | #Parse fields in rss-section |
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| 66 | $fields = explode( "|", $input ); |
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| 67 | $url = @$fields[0]; |
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| 68 | |
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| 69 | $args = array(); |
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| 70 | for ( $i = 1; $i < sizeof( $fields ); $i++ ) { |
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| 71 | $f = $fields[$i]; |
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| 72 | |
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| 73 | if ( strpos( $f, "=" ) === false ) $args[strtolower(trim($f))] = false; |
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| 74 | else { |
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| 75 | list( $k, $v ) = explode( "=", $f, 2 ); |
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| 76 | if ( trim( $v ) == false ) $args[strtolower(trim($k))] = false; |
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| 77 | else $args[strtolower(trim($k))] = trim($v); |
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| 78 | } |
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| 79 | } |
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| 80 | |
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| 81 | #Get charset from argument-array |
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| 82 | $charset = @$args['charset']; |
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| 83 | if( !$charset ) $charset = $wgOutputEncoding; |
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| 84 | #Get max number of headlines from argument-array |
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| 85 | $maxheads = @$args['max']; |
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| 86 | $headcnt = 0; |
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| 87 | |
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| 88 | #Get short-flag from argument-array |
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| 89 | #If short is set, no description text is printed |
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| 90 | if( isset( $args['short'] ) ) $short = true; else $short = false; |
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| 91 | #Get reverse-flag from argument-array |
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| 92 | if( isset( $args['reverse'] ) ) $reverse = true; else $reverse = false; |
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| 93 | #Get date-flag from argument-array |
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| 94 | if( isset( $args['date'] ) ) $date = true; else $date = false; |
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| 95 | #Get highlight terms from argument array |
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| 96 | $rssHighlight = @$args['highlight']; |
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| 97 | $rssHighlight = str_replace( ' ', ' ', $rssHighlight ); |
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| 98 | $rssHighlight = explode( ' ', trim( $rssHighlight ) ); |
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| 99 | |
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| 100 | #Get filter terms from argument-array |
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| 101 | $rssFilter = @$args['filter']; |
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| 102 | $rssFilter = str_replace( ' ', ' ', $rssFilter ); |
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| 103 | $rssFilter = explode( ' ', trim( $rssFilter ) ); |
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| 104 | |
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| 105 | #Filterout terms |
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| 106 | $rssFilterout = @$args['filterout']; |
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| 107 | $rssFilterout = str_replace( ' ', ' ', $rssFilterout ); |
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| 108 | $rssFilterout = explode( ' ', trim( $rssFilterout ) ); |
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| 109 | |
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| 110 | #Fetch RSS. May be cached locally. |
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| 111 | #Refer to the documentation of magpie for details. |
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| 112 | $rss = @fetch_rss( $url ); |
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| 113 | |
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| 114 | #Check for errors. |
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| 115 | if ( $rss->ERROR ) { |
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| 116 | return "<div>Failed to load RSS feed from $url: ".$rss->ERROR."</div>"; #localize
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| 117 | } |
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| 118 | |
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| 119 | if ( !is_array( $rss->items ) ) { |
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| 120 | return "<div>Failed to load RSS feed from $url!</div>"; #localize
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| 121 | } |
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| 122 | |
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| 123 | #Build title line |
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| 124 | #$title = iconv($charset, $wgOutputEncoding, $rss->channel['title']); |
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| 125 | #if( $rss->channel['link'] ) $title = "<a href='".$rss->channel['link']."'>$title</a>"; |
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| 126 | |
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| 127 | $output = ''; |
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| 128 | if( $reverse ) $rss->items = array_reverse( $rss->items ); |
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| 129 | $description = false; |
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| 130 | foreach ( $rss->items as $item ) { |
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| 131 | if ( $item['description'] ) { |
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| 132 | $description = true; |
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| 133 | break; |
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| 134 | } |
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| 135 | } |
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| 136 | |
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| 137 | #Build items |
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| 138 | if ( !$short and $description ) { #full item list |
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| 139 | $output.= '<dl>'; |
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| 140 | |
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| 141 | foreach ( $rss->items as $item ) { |
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| 142 | $d_text = true; |
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| 143 | $d_title = true; |
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| 144 | |
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| 145 | $href = trim( iconv( $charset, $wgOutputEncoding, $item['link'] ) ); |
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| 146 | $title = trim( iconv( $charset, $wgOutputEncoding, $item['title'] ) ); |
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| 147 | |
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| 148 | $pubdate = trim( iconv( $charset, $wgOutputEncoding, $item['pubdate'] ) ); |
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| 149 | $pubdate = date( "d.M. H:i", strtotime( $pubdate ) ); |
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| 150 | |
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| 151 | $d_title = wfRssFilter( $title, $rssFilter ); |
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| 152 | $d_title = wfRssFilterout( $title, $rssFilterout ); |
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| 153 | $title = wfRssHighlight( $title, $rssHighlight ); |
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| 154 | |
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| 155 | #Build description text if desired |
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| 156 | if ( $item['description'] ) { |
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| 157 | $text = trim( iconv( $charset, $wgOutputEncoding, $item['description'] ) ); |
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| 158 | #Avoid pre-tags |
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| 159 | $text = str_replace( "\r", ' ', $text ); |
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| 160 | $text = str_replace( "\n", ' ', $text ); |
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| 161 | $text = str_replace( "\t", ' ', $text ); |
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| 162 | $text = str_replace( '<br>', '', $text ); |
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| 163 | |
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| 164 | $d_text = wfRssFilter( $text, $rssFilter ); |
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| 165 | $d_text = wfRssFilterout( $text, $rssFilterout ); |
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| 166 | $text = wfRssHighlight( $text, $rssHighlight ); |
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| 167 | $display = $d_text or $d_title; |
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| 168 | } else { |
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| 169 | $text = ''; |
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| 170 | $display = $d_title; |
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| 171 | } |
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| 172 | if ( $display ) { |
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| 173 | $output.= "<dt><a href='$href'><b>$title</b></a></dt>"; |
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| 174 | if ( $date ) $output.= " ($pubdate)"; |
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| 175 | if ( $text ) $output.= "<dd>$text <b>[<a href='$href'>?</a>]</b></dd>"; |
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| 176 | } |
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| 177 | #Cut off output when maxheads is reached: |
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| 178 | if ( ++$headcnt == $maxheads ) break; |
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| 179 | } |
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| 180 | |
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| 181 | $output.= '</dl>'; |
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| 182 | } else { #short item list |
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| 183 | ## HACKY HACKY HACKY |
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| 184 | $output.= '<ul>'; |
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| 185 | $displayed = array(); |
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| 186 | foreach ( $rss->items as $item ) { |
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| 187 | $href = trim( iconv( $charset, $wgOutputEncoding, $item['link'] ) ); |
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| 188 | $title = trim( iconv( $charset, $wgOutputEncoding, $item['title'] ) ); |
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| 189 | $d_title = wfRssFilter( $title, $rssFilter ) && wfRssFilterout( $title, $rssFilterout ); |
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| 190 | $title = wfRssHighlight( $title, $rssHighlight ); |
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| 191 | $pubdate = trim( iconv( $charset, $wgOutputEncoding, $item['pubdate'] ) ); |
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| 192 | if ( $pubdate == '' ) { |
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| 193 | $pubdate = trim( iconv( $charset, $wgOutputEncoding, $item['dc']['date'] ) ); |
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| 194 | } |
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| 195 | $pubdate = date( "F d, Y H:i", strtotime( $pubdate ) ); |
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| 196 | |
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| 197 | if ( $d_title && !in_array( $title, $displayed ) ) { |
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| 198 | // Add date to ouput if specified |
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| 199 | $output.= '<li><a href="'.$href.'" title="'.$title.'">'.$title.'</a>'; |
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| 200 | if( $date ) { |
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| 201 | $output.= " ($pubdate)"; |
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| 202 | } |
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| 203 | $output.= '</li>'; |
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| 204 | |
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| 205 | $displayed[] = $title; |
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| 206 | #Cut off output when maxheads is reached: |
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| 207 | if ( ++$headcnt == $maxheads ) break; |
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| 208 | } |
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| 209 | } |
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| 210 | $output.= '</ul>'; |
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| 211 | } |
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| 212 | |
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| 213 | return $output; |
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| 214 | } |
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| 215 | |
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| 216 | function wfRssFilter( $text, $rssFilter ) { |
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| 217 | $display = true; |
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| 218 | if ( is_array( $rssFilter ) ) { |
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| 219 | foreach( $rssFilter as $term ) { |
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| 220 | if ( $term ) { |
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| 221 | $display = false; |
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| 222 | if ( preg_match( "|$term|i", $text, $a ) ) { |
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| 223 | $display = true; |
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| 224 | return $display; |
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| 225 | } |
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| 226 | } |
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| 227 | if ( $display ) break; |
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| 228 | } |
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| 229 | } |
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| 230 | return $display; |
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| 231 | } |
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| 232 | |
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| 233 | function wfRssFilterout( $text, $rssFilterout ) { |
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| 234 | $display = true; |
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| 235 | if ( is_array( $rssFilterout ) ) { |
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| 236 | foreach ( $rssFilterout as $term ) { |
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| 237 | if ( $term ) { |
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| 238 | if ( preg_match( "|$term|i", $text, $a ) ) { |
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| 239 | $display = false; |
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| 240 | return $display; |
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| 241 | } |
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| 242 | } |
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| 243 | } |
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| 244 | } |
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| 245 | return $display; |
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| 246 | } |
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| 247 | |
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| 248 | function wfRssHighlight( $text, $rssHighlight ) { |
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| 249 | $i = 0; |
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| 250 | $starttag = 'v8x5u3t3u8h'; |
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| 251 | $endtag = 'q8n4f6n4n4x'; |
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| 252 | |
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| 253 | $color[] = 'coral'; |
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| 254 | $color[] = 'greenyellow'; |
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| 255 | $color[] = 'lightskyblue'; |
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| 256 | $color[] = 'gold'; |
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| 257 | $color[] = 'violet'; |
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| 258 | $count_color = count( $color ); |
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| 259 | |
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| 260 | if ( is_array( $rssHighlight ) ) { |
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| 261 | foreach( $rssHighlight as $term ) { |
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| 262 | if ( $term ) { |
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| 263 | $text = preg_replace("|\b(\w*?".$term."\w*?)\b|i", "$starttag"."_".$i."\\1$endtag", $text); |
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| 264 | $i++; |
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| 265 | if ( $i == $count_color ) $i = 0; |
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| 266 | } |
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| 267 | } |
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| 268 | } |
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| 269 | |
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| 270 | #To avoid trouble should someone wants to highlight the terms "span", "style",
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| 271 | for ( $i = 0; $i < 5; $i++ ) { |
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| 272 | $text = preg_replace( "|$starttag"."_".$i."|", "<span style=\"background-color:".$color[$i]."; font-weight: bold;\">", $text ); |
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| 273 | $text = preg_replace( "|$endtag|", '</span>', $text ); |
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| 274 | } |
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| 275 | |
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| 276 | return $text; |
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| 277 | } |
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| 278 | ?> |
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