';
?>![](/cgi-bin/anon-www.cgi/http://www.dokuwiki.org/"<?php)
lib/plugins/random_page/random.png" alt="Random"> A Random Page
===== Download =====
[[http://massou.tk/v2/lib/exe/fetch.php?id=blogw%3Aa_random_page_v2_for_2009&cache=cache&media=blogw:random_page.zip|V2 (For test and Validation]]
*/
// must be run within DokuWiki
if(!defined('DOKU_INC')) die();
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'action.php');
class action_plugin_random_page extends DokuWiki_Action_Plugin {
/**
* return some info
*/
function getInfo(){
return array(
'author' => 'Jean Marc Massou',
'email' => 'massou@gmail.com',
'date' => '2008-03-13',
'name' => 'Random Page',
'desc' => 'Pick a random Page and display it like MediaWiki',
'url' => 'http://jeanmarcmassou.free.fr/dokuwiki/',
);
}
/*
* Register its handlers with the DokuWiki's event controller
*/
function register(&$controller)
{
$controller->register_hook('ACTION_HEADERS_SEND', 'BEFORE', $this, 'init', 'header');
}
function init(&$event, $args)
{
// Catch the good request
if ($_REQUEST['do'] == 'randompage') {
// On efface les headers par défaut
if ($args == 'header') {
$this->action_randompage($event, $args);
}
}
}
function action_randompage(&$event, $args) {
global $conf;
global $ID;
$data = array();
$dir = $conf['savedir'];
$data = file ($dir.'/index/page.idx');
//We loops through ten random page...
$i = 1;
while ($i <= 10 & $i <> "ok"):
//echo $i;
$i++;
$id = $data[array_rand($data, 1)];
$testACL = auth_aclcheck($id,$_SERVER['REMOTE_USER'],$USERINFO['grps']);
if ($testACL > 1){
$i="ok";
//echo $id;
}
endwhile;
if ($testACL < 1){
$id = $ID;
}
header("Location: ".wl($id,'',true));
//echo wl($page,'',true);
exit();
}
//Function from Php manual to get a random number in a Array
function array_rand($array, $lim=1) {
mt_srand((double) microtime() * 1000000);
for($a=0; $a<=$lim; $a++){
$num[] = mt_srand(0, count($array)-1);
}
return @$num;
}
}
===== Remarks =====
I really like the idea but instead of using the search() function you should use the list of available pages which gets created by the full text search indexer. It is stored in ''data/index/page.idx''. This should be faster than rebuilding the whole list of available pages every time. --- //[[andi@splitbrain.org|Andreas Gohr]] 2007-11-22 16:33//
>>Ok, I have been fired and I will have some times in the future to correct this...jm_zz
>>> That has been done:
>>> I have made a "do while" loop through ten iterations and for each, I check ACL, first time ACL is okay I stop the loop.
>>> If 10 ACL test are wrong we give it the current ID...
>>>> If you have a lot of private pages, the ACL check could fail the random function... because we do 10 random control... so perhaps it could be better to increase this parameter to 100 for example... but the function will be time and processor consuming...
for example:
//We loops through ten random page...
$i = 1;
while ($i <= 10 & $i <> "ok"):
//We loops through one hundred random page...
$i = 1;
while ($i <= 100 & $i <> "ok"):
----
=== Alternate template code ===
I didn't like the plain link for calling this via a template, I'd prefer to have a button to match the other stock buttons, so I added the following to my "main.php" in the "