<?php if (!defined('PmWiki')) exit();
/*
Copyright 2004-2017 Patrick R. Michaud (pmichaud@pobox.com)
This file is expirediff.php; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2
as published by the Free Software Foundation.
Changes 2005, by Karl Loncarek (Klonk) www.loncarek.de
Changes 2015, by Petko Yotov www.pmwiki.org/petko
See documentation for this recipe at:
http://www.pmwiki.org/wiki/Cookbook/ExpireDiff
Script maintained by Petko Yotov www.pmwiki.org/petko
*/
$RecipeInfo['ExpireDiff']['Version'] = '20180109';
# add "?action=expirediff"
SDV($HandleActions['expirediff'],'HandleExpireDiff');
SDV($HandleAuth['expirediff'], 'edit');
if(IsEnabled($EnableNoHistoryDirective, 0))
Markup('nohistory', 'directives', '/\\(:nohistory:\\)/i', 'DropHistory');
function DropHistory() {
global $DiffKeepDays, $DiffKeepNum;
$DiffKeepDays = $DiffKeepNum = -1;
return '';
}
function HandleExpireDiff($pagename, $auth) {
global $WikiDir, $Now;
Lock(2);
$page = RetrieveAuthPage($pagename, $auth);
if (!$page) { Abort("?cannot get $pagename"); }
$keepdays = intval(@$_REQUEST['keepdays']);
$keepgmt = $Now - $keepdays * 86400;
$keys = array_keys($page);
foreach($keys as $k)
if (preg_match("/^\\w+:(\\d+)/", $k, $match))
if ($match[1] < $keepgmt) unset($page[$k]);
$WikiDir->delete($pagename);
WritePage($pagename, $page);
Redirect($pagename);
exit;
}
## -- For expiring all pages at once; first parameter is the desired group,
## second parameter tells whether a backup should be done,
## third parameter tells which DIFFs should be kept.
function ExpireDiffAll($group='',$backup=1,$keepdays=0) {
global $WikiDir,$Now;
$pagelist = $WikiDir->ls();
$pagelist = array_unique($pagelist);
sort($pagelist);
foreach($pagelist as $k=>$p)
if (!(($group==substr($p,0,strpos($p,"."))) or ($group==''))) {
unset($pagelist[$k]);
}
$pagecount = count($pagelist);
echo "
<html>
<head>
<title>Expire pages (remove DIFFs)</title>
</head>
<body>
<h2>Expire existing pages (remove DIFFs)</h2>
<p>I'm now removing the DIFFs from the files (pages) you have stored in your wiki.
When this is finished you can get rid of the <tt>ExpireDiff(...);</tt> line in your
local/config.php</p>";
if ($pagelist) {
foreach($pagelist as $p) {
echo "<li>Expiring $p</li>\n";
$page = ReadPage($p);
$keepgmt = $Now - $keepdays * 86400;
$keys = array_keys($page);
foreach($keys as $k)
if (preg_match("/^\\w+:(\\d+)/", $k, $match))
if ($match[1] < $keepgmt) unset($page[$k]);
if ($backup==1) {
$WikiDir->delete($p);
};
WritePage($p,$page);
}
}
echo "<p>Removed DIFFs from ", $pagecount, " pages.</p>\n";
echo "<p>Now you can get rid of the <tt>ExpireDiff(...);</tt> line in your
local/config.php</p>
</body></html>\n";
exit(0);
}