Difference between revisions of "Template:Mainpage-rssfeeds"

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(RSS-Feed Mediawiki extension)
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http://meta.wikimedia.org/wiki/GISWiki/RSS
 
http://meta.wikimedia.org/wiki/GISWiki/RSS
  
 +
__NOTOC__
 
==RSS-Feed Mediawiki extension==
 
==RSS-Feed Mediawiki extension==
 +
 +
* original by mutante 25.03.2005
 +
* extended by Duesentrieb 30.04.2005
 +
* extended by Rdb78 07.07.2005
 +
* extended by Mafs  10.07.2005, 24.07.2005
 +
* extended by User:Arcy  07.09.2005
 +
* Updated for MediaWiki 1.6 by User:piku 13.06.2006
 +
* Update for Wikicode output, by User:cogdog 14.jul.2006
 +
 +
===Requires:===
 +
* magpie rss parser http://magpierss.sourceforge.net/
 +
* iconv http://www.gnu.org/software/libiconv/, see also http://www.php.net/iconv
 +
 +
===Installation:===
 +
* put this file (rss.php) into the extension directory of your mediawiki installation
 +
* add the following to the end of LocalSettings.php: include("extensions/rss.php");
 +
* make sure magpie can be found by PHP.
 +
 +
===Usage:===
 +
Use one section between <nowiki><rss>-tags for each feed. The rss section may contain parameters
 +
separated by a pipe ("|"), just like links and templates. These parameters are supported:
 +
</nowiki>
 +
 +
* charset=...            The charset used by the feed. iconv is used to convert this.
 +
* short                  Do not show the description text for each news item.
 +
* max=x                  Shows x most recent headlines.
 +
* highlight= term1 term2  The terms separated by a space are highlighted.
 +
* filter= term1 term2    Show only rss items containing at least one of the terms.
 +
* reverse                display the rss items in reverse order.
 +
* title=x                display an alternative title instead of chanel name.
 +
* title = none            dont display any title.
 +
 +
===Example:===
 +
<nowiki><rss>http://slashdot.org/slashdot.rss|charset=UTF-8|short|max=5</rss></nowiki>
 +
 +
<rss>http://slashdot.org/slashdot.rss|charset=UTF-8|short|max=5</rss>
 +
 
<pre><nowiki>
 
<pre><nowiki>
  

Revision as of 16:20, 29 July 2006

UNIQ22c39097ead2d748-rss-00000000-QINU UNIQ22c39097ead2d748-rss-00000001-QINU

GISWiki/RSS

Uses an extension from: http://meta.wikimedia.org/wiki/GISWiki/RSS


RSS-Feed Mediawiki extension

  • original by mutante 25.03.2005
  • extended by Duesentrieb 30.04.2005
  • extended by Rdb78 07.07.2005
  • extended by Mafs 10.07.2005, 24.07.2005
  • extended by User:Arcy 07.09.2005
  • Updated for MediaWiki 1.6 by User:piku 13.06.2006
  • Update for Wikicode output, by User:cogdog 14.jul.2006

Requires:

Installation:

  • put this file (rss.php) into the extension directory of your mediawiki installation
  • add the following to the end of LocalSettings.php: include("extensions/rss.php");
  • make sure magpie can be found by PHP.

Usage:

Use one section between <rss>-tags for each feed. The rss section may contain parameters separated by a pipe ("|"), just like links and templates. These parameters are supported:

  • charset=... The charset used by the feed. iconv is used to convert this.
  • short Do not show the description text for each news item.
  • max=x Shows x most recent headlines.
  • highlight= term1 term2 The terms separated by a space are highlighted.
  • filter= term1 term2 Show only rss items containing at least one of the terms.
  • reverse display the rss items in reverse order.
  • title=x display an alternative title instead of chanel name.
  • title = none dont display any title.

Example:

<rss>http://slashdot.org/slashdot.rss|charset=UTF-8|short|max=5</rss>

Physicists Make a Mobius Strip From Beams of Light

Sun, 01 Feb 2015 04:03:00

rossgneumann writes: A group of physicists has successfully manipulated beams of laser light into an optical mobius strip (abstract). The shape, a classic mindbender all but nonexistent in nature, has never before been seen in such an immaterial form.

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The Pirate Bay Is Back Online, Properly

Sun, 01 Feb 2015 01:01:00

New submitter cbiltcliffe writes: About a month ago, we discussed news that the Pirate Bay domain name was back online. This story mentioned a timer, which supposedly showed the time since the police raid. I didn't notice at the time, but a more recent check showed this counter was counting down, not up, with a time set to reach zero at the end of January. Sometime around a week ago, the waving pirate flag video changed to a graphic of an orange phoenix, and a disabled search box showed up. I've been watching the site since, and now, about 12 hours before the timer was to reach zero, the site is back up, complete with searches.

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NASA Looking At Nuclear Thermal Rockets To Explore the Solar System

Sat, 31 Jan 2015 23:59:00

MarkWhittington writes: Officially, NASA has been charged with sending astronauts to Mars sometime in the 2030s. Toward that end, according to a story in Universe Today, space agency engineers at the Marshall Space Flight Center are looking at an old concept for interplanetary travel, nuclear thermal engines. "...according to the report (cached), an NTP rocket could generate 200 kWt of power using a single kilogram of uranium for a period of 13 years – which works out of to a fuel efficiency rating of about 45 grams per 1000 MW-hr. In addition, a nuclear-powered engine could also provide superior thrust relative to the amount of propellant used." However, some doubts have been expressed whether NASA will be granted the budget to develop such engines.

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Inkscape Version 0.91 Released

Sat, 31 Jan 2015 22:55:00

Bryce writes: Four years since the last major Inkscape release, now news is out about version 0.91 of this powerful vector drawing and painting tool. The main reason for the multi-year delay is that they've switched from their old custom rendering engine to using Cairo now, improving their support for open source standards. This release also adds symbol libraries and support for Visio stencils, cross platform WMF and EMF import and export, a native Windows 64-bit build, scads of bug fixes, and much more. Check out the full release notes for more information about what has changed, or just jump right to downloading your package for Windows, Linux, or Mac OS X.

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Can Students Have Too Much Tech?

Sat, 31 Jan 2015 21:51:00

theodp writes: In a NY Times Op Ed, developmental psychologist Susan Pinker goes against the conventional White House wisdom about the importance of Internet connectivity for schoolchildren and instead argues that students can have too much tech. "More technology in the classroom has long been a policy-making panacea," Pinker writes. "But mounting evidence shows that showering students, especially those from struggling families, with networked devices will not shrink the class divide in education. If anything, it will widen it." Tech can help the progress of children, Pinker acknowledges, but proper use is the rub. As a cautionary tale, Pinker cites a study by Duke economists that tracked the academic progress of nearly one million disadvantaged middle-school students against the dates they were given networked computers. The news was not good. "Students who gain access to a home computer between the 5th and 8th grades tend to witness a persistent decline in reading and math scores," the economists wrote, adding that license to surf the Internet was also linked to lower grades in younger children.

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<?php
# RSS-Feed Mediawiki extension
# 
# original by mutante 25.03.2005
# extended by Duesentrieb 30.04.2005
# extended by Rdb78 07.07.2005
# extended by Mafs  10.07.2005, 24.07.2005
# extended by User:Arcy  07.09.2005
# Updated for MediaWiki 1.6 by User:piku 13.06.2006
# Update for Wikicode output, by User:cogdog 14.jul.2006
#
# Requires: 
#  * magpie rss parser <http://magpierss.sourceforge.net/>
#  * iconv <http://www.gnu.org/software/libiconv/>, see also <http://www.php.net/iconv>
#
# Installation:
#  * put this file (rss.php) into the extension directory of your mediawiki installation 
#  * add the following to the end of LocalSettings.php: include("extensions/rss.php");
#  * make sure magpie can be found by PHP.
#
# Usage:
#  Use one section between <rss>-tags for each feed. The rss section may contain parameters
#  separated by a pipe ("|"), just like links and templates. These parameters are supported:
#
#    * charset=...             The charset used by the feed. iconv is used to convert this.
#    * short                   Do not show the description text for each news item.
#    * max=x                   Shows x most recent headlines.
#    * highlight= term1 term2  The terms separated by a space are highlighted.
#    * filter= term1 term2     Show only rss items containing at least one of the terms.
#    * reverse                 display the rss items in reverse order.
#    * title=x                 display an alternative title instead of chanel name.
#    * title = none            dont display any title.
#
# Example: 
#    <rss>http://slashdot.org/slashdot.rss|charset=UTF-8|short|max=5</rss>
#

#change this according to your magpie installation!
require_once('rss_fetch.inc'); 

#install extension hook
$wgExtensionFunctions[] = "wfRssExtension"; 

#extension hook callback function
function wfRssExtension() { 
  global $wgParser;

  #install parser hook for <rss> tags
  $wgParser->setHook( "rss", "renderRss" );
}

#parser hook callback function
function renderRss($input, $argv, $parser = null) {
  if (!$parser) $parser =& $GLOBALS['wgParser'];
  global $wgOutputEncoding;

  $DefaultEncoding = "ISO-8859-1";
  $DisableCache = true;

  # $input = mysql_escape_string($input);

  if (!$input) return ""; #if <rss>-section is empty, return nothing

  #parse fields in rss-section
  $fields= explode("|",$input);
  $url= @$fields[0];

  $args= array();
  for ($i=1; $i<sizeof($fields); $i++) {
    $f= $fields[$i];

    if (strpos($f,"=")===False) $args[strtolower(trim($f))]= False;
    else {
      list($k,$v)= explode("=",$f,2);
      if (trim($v)==False) $args[strtolower(trim($k))] = False; 
      else $args[strtolower(trim($k))]= trim($v);
    }
  }

  #get charset from argument-array    
  $charset= @$args["charset"];
  if (!$charset) $charset= $DefaultEncoding;

  #get max number of headlines from argument-array
  $maxheads = @$args["max"];
  $headcnt = 0;

  #get short-flag from argument-array
  #if short is set, no description text is printed
  if (isset($args["short"])) $short = True; else $short = False;

  #get reverse-flag from argument-array
  if (isset($args["reverse"])) $reverse = True; else $reverse = False;

  #get highlight terms from argument-array    
  $rssHighlight= @$args["highlight"];
  $rssHighlight= str_replace("  "," ", $rssHighlight);
  $rssHighlight= explode(" ", trim($rssHighlight));

  #get filter terms from argument-array    
  $rssFilter= @$args["filter"];
  $rssFilter= str_replace("  "," ", $rssFilter);
  $rssFilter= explode(" ", trim($rssFilter));    

  #fetch rss. may be cached locally.
  #Refer to the documentation of magpie for details.
  $rss = @fetch_rss($url);


  #check for errors.
  if ($rss->ERROR) {
     # return "Feed error"; #localize...
      #return "<div>Failed to load RSS feed from $url: ".$rss->ERROR."</div>"; #localize...
  }

  if (!is_array($rss->items)) {
     # return "Feed error"; #localize...
      #return "<div>Failed to load RSS feed from $url!</div>"; #localize...
  }

  #Bild title line    
  #get title from argument-array    
  
  $rssTitle= @$args["title"];
  $rssTitle= trim($rssTitle);

  if ($rssTitle !=='none') {
    if ($rssTitle=='') {
        $title= iconv($charset,$wgOutputEncoding,$rss->channel['title']);
        if ($rss->channel['link']) $title= "[".$rss->channel['link']." $title]";
        $output = "=== $title ===\n";
    }
    else
    {
      $title= "[".$rss->channel['link']." $rssTitle]";
      $output="=== $title ===\n";
    }
  } else {
      $output="\n\n\n";
  }
  
  if ($reverse) $rss->items = array_reverse($rss->items);

  $description = False; 
  foreach ($rss->items as $item) {
      if ($item['description']) {$description = True; break;}
  }

  #Bild items
  if (!$short and $description) { #full item list

    $output.="";
    foreach ($rss->items as $item) {

      $d_text = true;
      $d_title = true;

      $href = trim(iconv($charset,$wgOutputEncoding,$item['link']));
      $title = trim(iconv($charset,$wgOutputEncoding,$item['title']));

      $d_title = wfRssFilter ($title, $rssFilter);
      $title= wfRssHighlight($title, $rssHighlight);

      #bild description text if desired
      if ($item["description"]) {
        $text= trim(iconv($charset,$wgOutputEncoding,$item['description']));

        #avoid pre-tags
        $text= str_replace("\r"," ",$text);
        $text= str_replace("\n"," ",$text);
        $text= str_replace("\t"," ",$text);

        $d_text = wfRssFilter ($text, $rssFilter);
        $text= wfRssHighlight($text, $rssHighlight);

        $display = $d_text or $d_title;

      }
        else   {
          $text = "";
          $display = $d_title;
        }       

      if ($display) {
        $output.="* [$href $title]";
        if ($text) $output.="<br>$text";
        $output .= "\n";
      }

    #Cut off output when maxheads is reached:
    if (++$headcnt == $maxheads)  break;

    }
    # $output.="</dl>";
  }
  else { #short item list
   #  $output.="<ul>";
    foreach ($rss->items as $item) {
      $href = trim(iconv($charset,$wgOutputEncoding,$item['link']));
      $title = trim(iconv($charset,$wgOutputEncoding,$item['title']));

        $d_title = wfRssFilter ($title, $rssFilter);
        $title= wfRssHighlight($title, $rssHighlight);

        if ($d_title ) $output.="* [$href $title]\n";

      #Cut off output when maxheads is reached:
      if (++$headcnt == $maxheads)  break;
    }
    # $output.="</ul>";
  }


  if ($DisableCache) {

    global $wgVersion;

    # Do not cache this wiki page.
    # for details see http://public.kitware.com/Wiki/User:Barre/MediaWiki/Extensions
    global $wgTitle, $wgDBprefix;
    $ts = mktime();
    $now = gmdate("YmdHis", $ts + 120);
    $ns = $wgTitle->getNamespace();
    $ti = wfStrencode($wgTitle->getDBkey());

    $version = preg_replace("/^([1-9]).([1-9]).*/", "\\1\\2", $wgVersion);
    if ($version>14) $sql = "UPDATE $wgDBprefix"."page SET page_touched='$now' WHERE page_namespace=$ns AND page_title='$ti'";
    else             $sql = "UPDATE $wgDBprefix"."cur SET cur_touched='$now' WHERE cur_namespace=$ns AND cur_title='$ti'";

    wfQuery($sql, DB_WRITE, "");
  }

  $out = $parser->parse ($output, $parser->mTitle,$parser->mOptions, true, false);
  return $out->getText();
}


function wfRssFilter ($text, $rssFilter) {

  $display = true;

  if (is_array($rssFilter)) {
    foreach($rssFilter as $term) {

      if ($term) {
        $display = false;
        if (preg_match("|$term|i", $text, $a))  {  $display = true; return $display; }
      }
    if ($display) break;
    }
  }
  return $display;
}


function wfRssHighlight($text, $rssHighlight) {

  $i=0;
  $starttag = "v8x5u3t3u8h";
  $endtag   = "q8n4f6n4n4x";

  $color[]="coral";
  $color[]="greenyellow";
  $color[]="lightskyblue";
  $color[]="gold";
  $color[]="violet";

  $count_color = count($color);

  if (is_array($rssHighlight)) {
    foreach($rssHighlight as $term) {
      if ($term) {
        $text = preg_replace("|\b(\w*?".$term."\w*?)\b|i", "$starttag"."_".$i."\\1$endtag", $text);
        $i++;
        if ($i == $count_color) $i=0;
        }
      }
    }
  # to avoid trouble should someone wants to highlight the terms "span", "style", ...
  for ($i=0; $i<5; $i++) {
    $text = preg_replace("|$starttag"."_".$i."|", "<span style=\"background-color:".$color[$i]."; font-weight: bold;\">", $text);
    $text = preg_replace("|$endtag|", "</span>", $text);
    }

  return $text;
}

?>