<embargo before="2009-04-01" after="2009-04-02">
Insert Diabolical April Fools Prank Here.
</embargo>

<embargo before="2009-12-01" after="2009-12-31">
'Tis the season, etc.
</embargo>

<embargo after="2009-07-31">
Yearly systems maintenance coming up! Check your email for details!
</embargo>

<embargo before="2009-08-01">
Yearly systems maintenance complete!
</embargo>

# Embargo
include_once("$IP/extensions/Embargo/Embargo.php");

<?php
// Embargo MediaWiki Extension.
// Embargoes content outside of certain time/date ranges.
 
// Copyright (C) 2007, Alexios Chouchoulas.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
$EmbargoVersion = '0.1';
 
// Credits
$wgExtensionCredits ['parserhook'][] =
  array(
	'name' => 'Embargo',
	'version' => $EmbargoVersion,
	'author' => 'Alexios Chouchoulas',
	'url' => 'http://www.bedroomlan.org/projects/extension-embargo',
	'description' => 'Allows embargo of content outside of certain time/date ranges.'
	);
 
 
// Extension initialization
$wgExtensionFunctions[] = "fnEmbargoExtension";
 
 
// Registers the extension with the WikiText parser.
function fnEmbargoExtension()
{
  // Register messages
  global $wgMessageCache, $wgPropertyTableMessages;
  foreach ($wgPropertyTableMessages as $sLang => $aMsgs) {
    $wgMessageCache->addMessages ($aMsgs, $sLang);
  }
 
  // Register the extension with the WikiText parser
  global $wgParser;
  $wgParser->setHook ('embargo', 'fnEmbargoTag');
}
 
 
// Parse a date/time specification.
function fnEmbargoParseDate ($d)
{
  return strtotime ($d);
}
 
 
// Processes the 'embargo' tag.
function fnEmbargoTag($input, $params, &$parser)
{
  $t = time();
  $t0 = $t - 1;
  $t1 = $t + 1;
  $retval = '';
  if (isset ($params ['before'])) {
    $before = $params ['before'];
    if ($before === FALSE) {
      $retval .= "<strong>BEFORE attribute could not be parsed. </strong>";
    } else {
      $t0 = fnEmbargoParseDate ($before);
    }
  }
  if (isset ($params ['after'])) {
    $after = $params ['after'];
    if ($before === FALSE) {
      $retval .= "<strong>AFTER attribute could not be parsed. </strong>";
    } else {
      $t1 = fnEmbargoParseDate ($after);
    }
  }
 
  if (($t0 <= $t) && ($t < $t1)) {
    $retval .= $input;
  }
  return $parser->internalParse ($retval);
}
 
?>