", "index");
  };*/
// do not change this line, you fool. In fact, don't change anything! Ever!
define("WAKKA_VERSION", "0.1.1");
define("WIKINI_VERSION", "0.4.4");
// start the compute time
list($g_usec, $g_sec) = explode(" ",microtime());
define ("t_start", (float)$g_usec + (float)$g_sec);
$t_SQL=0;

class p
{
	var $dblink;
	var $page;
	var $tag;
	var $parameter = array();
	var $queryLog = array();
	var $interwiki = array();
	var $VERSION;
	var $CookiePath = '/';


	// constructor
	function p($config)
	{
		$this->config = $config;
		// some host do not allow mysql_pconnect
		$this->dblink = @mysql_connect (
			$this->config["mysql_host"],
			$this->config["mysql_user"],
			$this->config["mysql_password"]);
		if ($this->dblink)
		{
			if (!@mysql_select_db($this->config["mysql_database"], $this->dblink))
			{
				@mysql_close($this->dblink);
				$this->dblink = false;
			}
		}
		$this->VERSION = WAKKA_VERSION;

		//determine le chemin pour le cookie
		$a = parse_url($this->GetConfigValue('base_url'));
		$this->CookiePath = dirname($a['path']);
		if ($this->CookiePath != '/') $this->CookiePath .= '/';
	}



	// DATABASE
	function Query($query)
	{
		if($this->GetConfigValue("debug")) $start = $this->GetMicroTime();
		if (!$result = mysql_query($query, $this->dblink))
		{
			ob_end_clean();
			die("Query failed: ".$query." (".mysql_error().")");
		}
		if($this->GetConfigValue("debug"))
		{
			$time = $this->GetMicroTime() - $start;
			$this->queryLog[] = array(
				"query"		=> $query,
				"time"		=> $time);
		}
		return $result;
	}
	function LoadSingle($query) { if ($data = $this->LoadAll($query)) return $data[0]; }
	function LoadAll($query)
	{
	$data=array();
	if ($r = $this->Query($query))
		{
			while ($row = mysql_fetch_assoc($r)) $data[] = $row;
			mysql_free_result($r);
		}
		return $data;
	}



	// MISC
	function GetMicroTime() { list($usec, $sec) = explode(" ",microtime()); return ((float)$usec + (float)$sec); }
	function IncludeBuffered($filename, $notfoundText = "", $vars = "", $path = "")
	{
		if ($path) $dirs = explode(":", $path);
		else $dirs = array("");

		foreach($dirs as $dir)
		{
			if ($dir) $dir .= "/";
			$fullfilename = $dir.$filename;
			if (file_exists($fullfilename))
			{
				if (is_array($vars)) extract($vars);

				ob_start();
				include($fullfilename);
				$output = ob_get_contents();
				ob_end_clean();
				return $output;
			}
		}
		if ($notfoundText) return $notfoundText;
		else return false;
	}
	// VARIABLES
	function GetPageTag() { return $this->tag; }
	function GetPageTime() { return $this->page["time"]; }
	function GetMethod() { return $this->method; }
	function GetConfigValue($name) { return $this->config[$name]; }
	function GetindexName() { return $this->GetConfigValue("index_name"); }
	function GetindexVersion() { return $this->VERSION; }
	function GetWikiNiVersion() { return WIKINI_VERSION; } 

	// PAGES
	function LoadPage($tag, $time = "", $cache = 1) {
		// retrieve from cache
		if (!$time && $cache && ($cachedPage = $this->GetCachedPage($tag))) { $page = $cachedPage;}
		// load page
		if (!isset($page)) $page = $this->LoadSingle("select * from ".$this->config["table_prefix"]."pages where tag = '".mysql_escape_string($tag)."' ".($time ? "and time = '".mysql_escape_string($time)."'" : "and latest = 'Y'")." limit 1");
		// cache result
		if (!$time) $this->CachePage($page);
		return $page;
	}
	function GetCachedPage($tag) {return (isset($this->pageCache[$tag]) ? $this->pageCache[$tag] : ''); }
	function CachePage($page) { $this->pageCache[$page["tag"]] = $page; }
	function SetPage($page) { $this->page = $page; if ($this->page["tag"]) $this->tag = $this->page["tag"]; }
	function LoadPageById($id) { return $this->LoadSingle("select * from ".$this->config["table_prefix"]."pages where id = '".mysql_escape_string($id)."' limit 1"); }
	function LoadRevisions($page) { return $this->LoadAll("select * from ".$this->config["table_prefix"]."pages where tag = '".mysql_escape_string($page)."' order by time desc"); }
	function LoadPagesLinkingTo($tag) { return $this->LoadAll("select from_tag as tag from ".$this->config["table_prefix"]."links where to_tag = '".mysql_escape_string($tag)."' order by tag"); }
	function LoadRecentlyChanged($limit=50) {
		$limit= (int) $limit;
		if ($pages = $this->LoadAll("select tag, time, user, owner from ".$this->config["table_prefix"]."pages where latest = 'Y' and comment_on = '' order by time desc limit $limit"))
		{
			foreach ($pages as $page)
			{
				$this->CachePage($page);
			}
			return $pages;
		}
	}
	function LoadAllPages() { return $this->LoadAll("select * from ".$this->config["table_prefix"]."pages where latest = 'Y' order by tag"); }
	function FullTextSearch($q) { return $this->LoadAll("select * from ".$this->config["table_prefix"]."pages where latest = 'Y' and match(tag, body) against('".mysql_escape_string($q)."')"); }
	function LoadWantedPages() { return $this->LoadAll("select distinct ".$this->config["table_prefix"]."links.to_tag as tag,count(".$this->config["table_prefix"]."links.from_tag) as count from ".$this->config["table_prefix"]."links left join ".$this->config["table_prefix"]."pages on ".$this->config["table_prefix"]."links.to_tag = ".$this->config["table_prefix"]."pages.tag where ".$this->config["table_prefix"]."pages.tag is NULL group by tag order by count desc"); }
	function LoadOrphanedPages() { return $this->LoadAll("select distinct tag from ".$this->config["table_prefix"]."pages left join ".$this->config["table_prefix"]."links on ".$this->config["table_prefix"]."pages.tag = ".$this->config["table_prefix"]."links.to_tag where ".$this->config["table_prefix"]."links.to_tag is NULL and ".$this->config["table_prefix"]."pages.comment_on = '' order by tag"); }
	function IsOrphanedPage($tag) { return $this->LoadAll("select distinct tag from ".$this->config["table_prefix"]."pages left join ".$this->config["table_prefix"]."links on ".$this->config["table_prefix"]."pages.tag = ".$this->config["table_prefix"]."links.to_tag where ".$this->config["table_prefix"]."links.to_tag is NULL and ".$this->config["table_prefix"]."pages.comment_on ='' and tag='".mysql_escape_string($tag)."'"); }
	function DeleteOrphanedPage($tag) {
		$this->Query("delete from ".$this->config["table_prefix"]."pages where tag='".mysql_escape_string($tag)."' ");
		$this->Query("delete from ".$this->config["table_prefix"]."links where from_tag='".mysql_escape_string($tag)."' ");
		$this->Query("delete from ".$this->config["table_prefix"]."acls where page_tag='".mysql_escape_string($tag)."' ");
		$this->Query("delete from ".$this->config["table_prefix"]."referrers where page_tag='".mysql_escape_string($tag)."' ");
	}
	function SavePage($tag, $body, $comment_on = "") {
		// get current user
		$user = $this->GetUserName();

		//die($tag);

		// TODO: check write privilege
		if ($comment_on ? $this->HasAccess("comment", $comment_on)
		                : $this->HasAccess("write", $tag))
		{
			// is page new?
			if (!$oldPage = $this->LoadPage($tag))
			{
				// create default write acl. store empty write ACL for comments.
				$this->SaveAcl($tag, "write", ($comment_on ? "" : $this->GetConfigValue("default_write_acl")));

				// create default read acl
				$this->SaveAcl($tag, "read", $this->GetConfigValue("default_read_acl"));

				// create default comment acl.
				$this->SaveAcl($tag, "comment", $this->GetConfigValue("default_comment_acl"));

				// current user is owner; if user is logged in! otherwise, no owner.
				if ($this->GetUser()) $owner = $user;
				else $owner = '';
			}
			else
			{
				// aha! page isn't new. keep owner!
				$owner = $oldPage["owner"];
			}


			// set all other revisions to old
			$this->Query("update ".$this->config["table_prefix"]."pages set latest = 'N' where tag = '".mysql_Escape_string($tag)."'");

			// add new revision
			$this->Query("insert into ".$this->config["table_prefix"]."pages set ".
				"tag = '".mysql_escape_string($tag)."', ".
				($comment_on ? "comment_on = '".mysql_escape_string($comment_on)."', " : "").
				"time = now(), ".
				"owner = '".mysql_escape_string($owner)."', ".
				"user = '".mysql_escape_string($user)."', ".
				"latest = 'Y', ".
				"body = '".mysql_escape_string(chop($body))."'");
		}
		include("update_rss.php");
	}
	function PurgePages() {
		if ($days = $this->GetConfigValue("pages_purge_time")) {
			// Selection of pages which can be deleted 
			$pages = $this->LoadAll("select distinct tag, time from ".$this->config["table_prefix"]."pages where time < date_sub(now(), interval '".mysql_escape_string($days)."' day) and latest = 'N' order by time asc");
			foreach ($pages as $page) {
				// Deletion if there are more than 2 versions avalaible (TODO : parameter ?)
				$tags=$this->LoadAll("select distinct tag from ".$this->config["table_prefix"]."pages where tag = '".mysql_escape_string($page['tag'])."' group by tag having count(*) > 2 order by tag");
				foreach ($tags as $tag) {
					$this->Query("delete from ".$this->config["table_prefix"]."pages where time = '".mysql_escape_string($page['time'])."' and tag = '".mysql_escape_string($tag['tag'])."'");
				}
			}
		}
	}



	// COOKIES
	function SetSessionCookie($name, $value) { SetCookie($name, $value, 0, $this->CookiePath); $_COOKIE[$name] = $value; }
	function SetPersistentCookie($name, $value, $remember = 0) { SetCookie($name, $value, time() + ($remember ? 90*24*60*60 : 60 * 60), $this->CookiePath); $_COOKIE[$name] = $value; }
	function DeleteCookie($name) { SetCookie($name, "", 1, $this->CookiePath); $_COOKIE[$name] = ""; }
	function GetCookie($name) { return $_COOKIE[$name]; }

	// HTTP/REQUEST/LINK RELATED
	function SetMessage($message) { $_SESSION["message"] = $message; }
	function GetMessage()
	{
		if (isset($_SESSION["message"])) $message = $_SESSION["message"];
		else $message = "";
		$_SESSION["message"] = "";
		return $message;
	}
	function Redirect($url)
	{
		header("Location: $url");
		exit;
	}
	// returns just PageName[/method].
	function MiniHref($method = "", $tag = "")
	{
		if (!$tag = trim($tag)) $tag = $this->tag;
		return $tag.($method ? "/".$method : "");
	}
	// returns the full url to a page/method.
	function Href($method = "", $tag = "", $params = "")
	{
		$href = $this->config["base_url"].$this->MiniHref($method, $tag);
		if ($params)
		{
			$href .= ($this->config["rewrite_mode"] ? "?" : "&amp;").$params;
		}
		return $href;
	}
	function Link($tag, $method = "", $text = "", $track = 1)
    {
		$tag=htmlspecialchars($tag); //avoid xss
		$text=htmlspecialchars($text); //paranoiac again
		$text = preg_replace('/&amp;(\\#[xX][a-fA-F0-9]+|\\#[0-9]+|[a-zA-Z0-9]+);/', '&$1;', $text);
		if (!$text) $text = $tag;

		// is this an interwiki link?
		if (preg_match("/^([A-Z][A-Z,a-z]+)[:]([A-Z,a-z,0-9]*)$/s", $tag, $matches))
		{
			$tag = $this->GetinterwikiUrl($matches[1], $matches[2]);
			return "<a href=\"$tag\">$text (interwiki)</a>";
		}
		// is this a full link? ie, does it contain non alpha-numeric characters?
		// Note : [:alnum:] is equivalent [0-9A-Za-z]
		//        [^[:alnum:]] means : some caracters other than [0-9A-Za-z]
		// For example : "www.adress.com", "mailto:adress@domain.com", "http://www.adress.com"
		else if (preg_match("/[^[:alnum:]]/", $tag))
		{
			// check for email addresses
			if (preg_match("/^[\w.-]+\@[\w.-]+$/", $tag))
			{
				$tag = "mailto:".$tag;
			}
			// check for protocol-less URLs
			else if (!preg_match("/:\/\//", $tag))
			{
				$tag = "http://".$tag;	//Very important for xss (avoid javascript:() hacking)
			}
			// is this an inline image (text!=tag and url ends png,gif,jpeg)
			if ($text!=$tag and preg_match("/.(gif|jpeg|png|jpg)$/i",$tag))
			{
				return "<img src=\"$tag\" alt=\"$text\" />";
			}
			else
			{
				return "<a href=\"$tag\">$text</a>";
			}
		}
		else
		{
			// it's a wiki link!
			if (isset($_SESSION["linktracking"]) && $track) $this->TrackLinkTo($tag);
			return ($this->LoadPage($tag) ? "<a href=\"".$this->href($method, $tag)."\">".$text."</a>" : "<span class=\"missingpage\">".$text."</span><a href=\"".$this->href("edit", $tag)."\">?</a>");
		}
	}
	function ComposeLinkToPage($tag, $method = "", $text = "", $track = 1) {
		if (!$text) $text = $tag;
		$text = htmlentities($text);
		if (isset($_SESSION["linktracking"]) && $track)
			$this->TrackLinkTo($tag);
		return '<a href="'.$this->href($method, $tag).'">'.$text.'</a>';
	}
	// function PregPageLink($matches) { return $this->Link($matches[1]); }
	function IspName($text) { return preg_match("/^[A-Z][a-z]+[A-Z,0-9][A-Z,a-z,0-9]*$/", $text); }
	function TrackLinkTo($tag) { $_SESSION["linktable"][] = $tag; }
	function GetLinkTable() { return $_SESSION["linktable"]; }
	function ClearLinkTable() { $_SESSION["linktable"] = array(); }
	function StartLinkTracking() { $_SESSION["linktracking"] = 1; }
	function StopLinkTracking() { $_SESSION["linktracking"] = 0; }
	function WriteLinkTable() {
		// delete old link table
		$this->Query("delete from ".$this->config["table_prefix"]."links where from_tag = '".mysql_escape_string($this->GetPageTag())."'");
		if ($linktable = $this->GetLinkTable())
		{
			$from_tag = mysql_escape_string($this->GetPageTag());
			foreach ($linktable as $to_tag)
			{
				$lower_to_tag = strtolower($to_tag);
				if (!isset($written[$lower_to_tag]))
				{
					$this->Query("insert into ".$this->config["table_prefix"]."links set from_tag = '".$from_tag."', to_tag = '".mysql_escape_string($to_tag)."'");
					$written[$lower_to_tag] = 1;
				}
			}
		}
	}
	function Header() { return $this->Action($this->GetConfigValue("header_action"), 1); }
	function Footer() { return $this->Action($this->GetConfigValue("footer_action"), 1); }

	// FORMS
	function FormOpen($method = "", $tag = "", $formMethod = "post") { 		
		if (isset($_REQUEST["q"])) {
			$result = "<form action=\"?q=".$_REQUEST["q"]."\" method=\"".$formMethod."\">\n";
		}else{
			$result = "<form action=\"".$this->href($method, $tag)."\" method=\"".$formMethod."\">\n";
			if (!$this->config["rewrite_mode"]) $result .= "<input type=\"hidden\" name=\"p\" value=\"".$this->MiniHref($method, $tag)."\" />\n";
		}
		return $result;
	}
/*
	// FORMS
	function FormOpen($method = "", $tag = "", $formMethod = "post", $enctype="multipart/form-data") {
		/*avant la modif ACeditor 
		$result = "<form action=\"".$this->href($method, $tag)."\" method=\"".$formMethod."\"  enctype=\"".$enctype."\">\n";
		*/
		/* Debut de la modif ACeditor * /
		if (ereg('edit$', $this->href($method, $tag))) {
			$result = "<form id=\"ACEditor\" name=\"ACEditor\" action=\"".$this->href($method, $tag)."\" method=\"".$formMethod."\">\n";
		} else {
		//$result = "<form action=\"".$this->href($method, $tag)."\" method=\"".$formMethod."\">\n";* /
			
			if (isset($_REQUEST["q"])) {
				$result = "<form action=\"?q=".$_REQUEST["q"]."\" method=\"".$formMethod."\">\n";
			}else{
				$result = "<form action=\"".$this->href($method, $tag)."\" method=\"".$formMethod."\">\n";
			if (!$this->config["rewrite_mode"]) $result .= "<input type=\"hidden\" name=\"p\" value=\"".$this->MiniHref($method, $tag)."\" />\n";
			}
		
		//}
		/* fin de la modif ACeditor * /
		
	
		return $result;
	}*/
	function FormClose() {
		return "</form>\n";
	}



	// interwiki STUFF
	function ReadinterwikiConfig() {
		if ($lines = file("interwiki.conf"))
		{
			foreach ($lines as $line)
			{
				if ($line = trim($line))
				{
					list($pName, $pUrl) = explode(" ", trim($line));
					$this->Addinterwiki($pName, $pUrl);
				}
			}
		}
	}
	function Addinterwiki($name, $url) {
		$this->interwiki[$name] = $url;
	}
	function GetinterwikiUrl($name, $tag) {
		if (isset($this->interwiki[$name]))
		{
			return $this->interwiki[$name].$tag;
		} else {
		return 'http://'.$tag; //avoid xss by putting http:// in front of JavaScript:()
		}
	}



	// REFERRERS
	function LogReferrer($tag = "", $referrer = "") {
		// fill values
		if (!$tag = trim($tag)) $tag = $this->GetPageTag();
		if (!$referrer = trim($referrer) AND isset($_SERVER["HTTP_REFERER"])) $referrer = $_SERVER["HTTP_REFERER"];
		
		// check if it's coming from another site
		if ($referrer && !preg_match("/^".preg_quote($this->GetConfigValue("base_url"), "/")."/", $referrer))
		{
            // avoid XSS (with urls like "javascript:alert()" and co)
            // by forcing http/https prefix
            // NB.: this does NOT exempt to htmlspecialchars() the collected URIs !
            if (!preg_match('`^https?://`', $referrer)) return;
            
			$this->Query("insert into ".$this->config["table_prefix"]."referrers set ".
				"page_tag = '".mysql_escape_string($tag)."', ".
				"referrer = '".mysql_escape_string($referrer)."', ".
				"time = now()");
		}
	}
	function LoadReferrers($tag = "") {
		return $this->LoadAll("select referrer, count(referrer) as num from ".$this->config["table_prefix"]."referrers ".($tag = trim($tag) ? "where page_tag = '".mysql_escape_string($tag)."'" : "")." group by referrer order by num desc");
	}
	function PurgeReferrers() {
		if ($days = $this->GetConfigValue("referrers_purge_time")) {
			$this->Query("delete from ".$this->config["table_prefix"]."referrers where time < date_sub(now(), interval '".mysql_escape_string($days)."' day)");
		}
	}



	// PLUGINS
	function Action($action, $forceLinkTracking = 0)
	{
		$action = trim($action); $vars=array();
		// stupid attributes check
		if ((stristr($action, "=\"")) || (stristr($action, "/")))
		{
			// extract $action and $vars_temp ("raw" attributes)
			preg_match("/^([A-Za-z0-9]*)\/?(.*)$/", $action, $matches);
			list(, $action, $vars_temp) = $matches;
			// match all attributes (key and value)
			$this->parameter[$vars_temp]=$vars_temp;
			preg_match_all("/([A-Za-z0-9]*)=\"(.*)\"/U", $vars_temp, $matches);

		// prepare an array for extract() to work with (in $this->IncludeBuffered())
		if (is_array($matches))
			{
				for ($a = 0; $a < count($matches[1]); $a++)
				{
					$vars[$matches[1][$a]] = $matches[2][$a];
					$this->parameter[$matches[1][$a]]=$matches[2][$a];
				}
			}
		}
		if (!$forceLinkTracking) $this->StopLinkTracking();
		$result = $this->IncludeBuffered(strtolower($action).".php", "<i>Action inconnue \"$action\"</i>", $vars, $this->config["action_path"]);
		$this->StartLinkTracking();
		if (isset($parameter)) unset($this->parameter[$parameter]);
		unset($this->parameter);
		return $result;
	}
	function Method($method) {
		if (!$handler = $this->page["handler"]) $handler = "page";
		$methodLocation = $handler."/".$method.".php";
		return $this->IncludeBuffered($methodLocation, "<i>M&eacute;thode inconnue \"$methodLocation\"</i>", "", $this->config["handler_path"]);
	}
	function Format($text, $formatter = "index") {
		return $this->IncludeBuffered("formatters/".$formatter.".php", "<i>Impossible de trouver le formateur \"$formatter\"</i>", compact("text")); 
	}



	// USERS
	function LoadUser($name, $password = 0) { return $this->LoadSingle("select * from ".$this->config["table_prefix"]."users where name = '".mysql_escape_string($name)."' ".($password === 0 ? "" : "and password = '".mysql_escape_string($password)."'")." limit 1"); }
	function LoadUsers() { return $this->LoadAll("select * from ".$this->config["table_prefix"]."users order by name"); }
	function GetUserName() { if ($user = $this->GetUser()) $name = $user["name"]; else if (!$name = gethostbyaddr($_SERVER["REMOTE_ADDR"])) $name = $_SERVER["REMOTE_ADDR"]; return $name; }
	function UserName() { /* deprecated! */ return $this->GetUserName(); }
	function GetUser() { return (isset($_SESSION["user"]) ? $_SESSION["user"] : '');}
	function SetUser($user, $remember=0) { $_SESSION["user"] = $user; $this->SetPersistentCookie("name", $user["name"], $remember); $this->SetPersistentCookie("password", $user["password"], $remember); $this->SetPersistentCookie("remember", $remember, $remember); }
	function LogoutUser() { $_SESSION["user"] = ""; $this->DeleteCookie("name"); $this->DeleteCookie("password"); }
	function UserWantsComments() { if (!$user = $this->GetUser()) return false; return ($user["show_comments"] == "Y"); }
	function GetParameter($parameter, $default = '') { return (isset($this->parameter[$parameter]) ? $this->parameter[$parameter] : $default); }


	
	// COMMENTS
	function LoadComments($tag) { return $this->LoadAll("select * from ".$this->config["table_prefix"]."pages where comment_on = '".mysql_escape_string($tag)."' and latest = 'Y' order by time"); }
	function LoadRecentComments() { return $this->LoadAll("select * from ".$this->config["table_prefix"]."pages where comment_on != '' and latest = 'Y' order by time desc"); }
	function LoadRecentlyCommented($limit = 50) {
		$pages = array();
		
		// NOTE: this is really stupid. Maybe my SQL-Fu is too weak, but apparently there is no easier way to simply select
		//       all comment pages sorted by their first revision's (!) time. ugh!
		
		// load ids of the first revisions of latest comments. err, huh?
		$pages=array();
		$comments=array();
		if ($ids = $this->LoadAll("select min(id) as id from ".$this->config["table_prefix"]."pages where comment_on != '' group by tag order by id desc"))
		{
			// load complete comments
			$num=0;
			foreach ($ids as $id)
			{
				$comment = $this->LoadSingle("select * from ".$this->config["table_prefix"]."pages where id = '".$id["id"]."' limit 1");
				if (!isset($comments[$comment["comment_on"]]) && $num < $limit)
				{
					$comments[$comment["comment_on"]] = $comment;
					$num++;
				}
			}
		
			// now load pages
			if ($comments)
			{
				// now using these ids, load the actual pages
				foreach ($comments as $comment)
				{
					$page = $this->LoadPage($comment["comment_on"]);
					$page["comment_user"] = $comment["user"];
					$page["comment_time"] = $comment["time"];
					$page["comment_tag"] = $comment["tag"];
					$pages[] = $page;
				}
			}
		}
		// load tags of pages 
		//return $this->LoadAll("select comment_on as tag, max(time) as time, tag as comment_tag, user from ".$this->config["table_prefix"]."pages where comment_on != '' group by comment_on order by time desc");
		return $pages;
	}



	// ACCESS CONTROL
	// returns true if logged in user is owner of current page, or page specified in $tag
	function UserIsOwner($tag = "") {
		// check if user is logged in
		if (!$this->GetUser()) return false;

		// set default tag
		if (!$tag = trim($tag)) $tag = $this->GetPageTag();
		
		// check if user is owner
		if ($this->GetPageOwner($tag) == $this->GetUserName()) return true;
	}
	function GetPageOwner($tag = "", $time = "") { if (!$tag = trim($tag)) $tag = $this->GetPageTag(); if ($page = $this->LoadPage($tag, $time)) return $page["owner"]; }
	function SetPageOwner($tag, $user) {
		// check if user exists
		if (!$this->LoadUser($user)) return;
		
		// updated latest revision with new owner
		$this->Query("update ".$this->config["table_prefix"]."pages set owner = '".mysql_escape_string($user)."' where tag = '".mysql_escape_string($tag)."' and latest = 'Y' limit 1");
	}
	function LoadAcl($tag, $privilege, $useDefaults = 1) {
		if ((!$acl = $this->LoadSingle("select * from ".$this->config["table_prefix"]."acls where page_tag = '".mysql_escape_string($tag)."' and privilege = '".mysql_escape_string($privilege)."' limit 1")) && $useDefaults)
		{
			$acl = array("page_tag" => $tag, "privilege" => $privilege, "list" => $this->GetConfigValue("default_".$privilege."_acl"));
		}
		return $acl;
	}
	function SaveAcl($tag, $privilege, $list) {
		if ($this->LoadAcl($tag, $privilege, 0)) $this->Query("update ".$this->config["table_prefix"]."acls set list = '".mysql_escape_string(trim(str_replace("\r", "", $list)))."' where page_tag = '".mysql_escape_string($tag)."' and privilege = '".mysql_escape_string($privilege)."' limit 1");
		else $this->Query("insert into ".$this->config["table_prefix"]."acls set list = '".mysql_escape_string(trim(str_replace("\r", "", $list)))."', page_tag = '".mysql_escape_string($tag)."', privilege = '".mysql_escape_string($privilege)."'");
	}
	// returns true if $user (defaults to current user) has access to $privilege on $page_tag (defaults to current page)
	function HasAccess($privilege, $tag = "", $user = "") {
		// set defaults
		if (!$tag = trim($tag)) $tag = $this->GetPageTag();
		if (!$user = $this->GetUserName());
		
		// load acl
		$acl = $this->LoadAcl($tag, $privilege);
		
		// if current user is owner, return true. owner can do anything!
		if ($this->UserIsOwner($tag)) return true;
		
		// fine fine... now go through acl
		foreach (explode("\n", $acl["list"]) as $line)
		{
			$line = trim($line);

			// check for inversion character "!"
			if (preg_match("/^[!](.*)$/", $line, $matches))
			{
				$negate = 1;
				$line = $matches[1];
			}
			else
			{
				$negate = 0;
			}

			// if there's still anything left... lines with just a "!" don't count!
			if ($line)
			{
				switch ($line[0])
				{
				// comments
				case "#":
					break;
				// everyone
				case "*":
					return !$negate;
				// aha! a user entry.
				case "+":
					if (!$this->LoadUser($user)) 
					{
						return $negate;
					}
					else
					{
						return !$negate;
					}
				default:
					if ($line == $user)
					{
						return !$negate;
					}
				}
			}
		}
		
		// tough luck.
		return false;
	}



	// MAINTENANCE
	function Maintenance() {
		// purge referrers
		$this->PurgeReferrers();
		// purge old page revisions
		$this->PurgePages();
	}



	// THE BIG EVIL NASTY ONE!
	function Run($tag, $method = "") {
		if(!($this->GetMicroTime()%3)) $this->Maintenance(); 

		$this->ReadinterwikiConfig();

		// do our stuff!
		if (!$this->method = trim($method)) $this->method = "show";
		if (!$this->tag = trim($tag)) $this->Redirect($this->href("", $this->config["root_page"]));
		if ((!$this->GetUser() && isset($_COOKIE["name"])) && ($user = $this->LoadUser($_COOKIE["name"], $_COOKIE["password"]))) $this->SetUser($user, $_COOKIE["remember"]);
		$this->SetPage($this->LoadPage($tag, (isset($_REQUEST["time"]) ? $_REQUEST["time"] :'')));
		$this->LogReferrer();

      //correction pour un support plus facile de nouveaux handlers
      print($this->Method($this->method));
	}
}



// stupid version check
if (!isset($_REQUEST)) die('$_REQUEST[] not found. index requires PHP 4.1.0 or higher!');

// workaround for the amazingly annoying magic quotes.
function magicQuotesSuck(&$a)
{
	if (is_array($a))
	{
		foreach ($a as $k => $v)
		{
			if (is_array($v))
				magicQuotesSuck($a[$k]);
			else
				$a[$k] = stripslashes($v);
		}
	}
}
set_magic_quotes_runtime(0);
if (get_magic_quotes_gpc())
{
	magicQuotesSuck($_POST);
	magicQuotesSuck($_GET);
	magicQuotesSuck($_COOKIE);
}


// default configuration values
$indexConfig= array();
$indexDefaultConfig = array(
	'WAKKA_VERSION'		=> '',
	'WIKINI_VERSION'	=> '',
	'debug'			=> 'no',
	"mysql_host"		=> "localhost",
	"mysql_database"		=> "WikiNi",
	"mysql_user"		=> "WikiNi",
	"mysql_password"		=> '',
	"table_prefix"		=> "WikiNi_",
	"root_page"			=> "accueil",
	"index_name"		=> "MonSiteWikiNi",
	"base_url"			=> "http://".$_SERVER["SERVER_NAME"].($_SERVER["SERVER_PORT"] != 80 ? ":".$_SERVER["SERVER_PORT"] : "").$_SERVER["REQUEST_URI"].(preg_match("/".preg_quote("index.php")."$/", $_SERVER["REQUEST_URI"]) ? "?p=" : ""),
	"rewrite_mode"		=> (preg_match("/".preg_quote("index.php")."$/", $_SERVER["REQUEST_URI"]) ? "0" : "1"),
	'meta_keywords'		=> '',
	'meta_description'	=> '',
	"action_path"		=> "actions",
	"handler_path"		=> "handlers",
	"header_action"		=> "header",
	"footer_action"		=> "footer",
	"navigation_links"		=> "adminmenus adminpages adminusers admincoms,recherche,faq,adminzone connexion crédits contact,adminzone",
	"referrers_purge_time"	=> 24,
	"pages_purge_time"	=> 90,
	"default_write_acl"	=> "ChristophePineau",
	"default_read_acl"	=> "*",
	"default_comment_acl"	=> "+",
	"preview_before_save"	=> "0",
	'allow_raw_html'	=> false);

// load config
if (!$configfile = GetEnv("index_CONFIG")) $configfile = "index.config.php";
if (file_exists($configfile)) include($configfile);
$indexConfigLocation = $configfile;
$indexConfig = array_merge($indexDefaultConfig, $indexConfig);

// check for locking
if (file_exists("locked")) {
	// read password from lockfile
	$lines = file("locked");
	$lockpw = trim($lines[0]);
	
	// is authentification given?
	if (isset($_SERVER["PHP_AUTH_USER"])) {
		if (!(($_SERVER["PHP_AUTH_USER"] == "admin") && ($_SERVER["PHP_AUTH_PW"] == $lockpw))) {
			$ask = 1;
		}
	} else {
		$ask = 1;
	}
	
	if ($ask) {
		header("WWW-Authenticate: Basic realm=\"".$indexConfig["index_name"]." Install/Upgrade Interface\"");
		header("HTTP/1.0 401 Unauthorized");
		echo "Ce site est en cours de mise &agrave; jour. Veuillez essayer plus tard." ;
		exit;
	}
}


// compare versions, start installer if necessary
if ($indexConfig["WAKKA_VERSION"] && (!$indexConfig["WIKINI_VERSION"])) { $indexConfig["WIKINI_VERSION"]=$indexConfig["WAKKA_VERSION"]; }
if (($indexConfig["WAKKA_VERSION"] != WAKKA_VERSION) || ($indexConfig["WIKINI_VERSION"] != WIKINI_VERSION)) {
	// start installer
	if (!isset($_REQUEST["installAction"]) OR !$installAction = trim($_REQUEST["installAction"])) $installAction = "default";
	include("setup/header.php");
	if (file_exists("setup/".$installAction.".php")) include("setup/".$installAction.".php"); else echo "<i>Invalid action</i>" ;
	include("setup/footer.php");
	exit;
}


// configuration du cookie de session
//determine le chemin pour le cookie
$a = parse_url($indexConfig['base_url']);
$CookiePath = dirname($a['path']);
if ($CookiePath != '/') $CookiePath .= '/';
$a = session_get_cookie_params();
session_set_cookie_params($a['lifetime'],$CookiePath);
unset($a);
unset($CookiePath);

// start session
session_start();

// fetch index location
if (!isset($_REQUEST["p"])) $_REQUEST["p"] = '';
if (isset($_REQUEST["q"])) $_REQUEST["p"] = 'recherche';
$p = $_REQUEST["p"];
if(file_exists("handlers/page/$p.php")){$method=$p;}
// remove leading slash
$p = preg_replace("/^\//", "", $p);

// split into page/method
if (preg_match("#^(.+?)/([A-Za-z0-9_]*)$#", $p, $matches)) list(, $page, $method) = $matches;
else if (preg_match("#^(.*)$#", $p, $matches)) list(, $page) = $matches;

// create p object
$p = new p($indexConfig);
// check for database access
if (!$p->dblink)
{
	echo "<p>Pour des raisons ind&eacute;pendantes de notre volont&eacute;, le contenu de ce wiki est temporairement inaccessible. Veuillez r&eacute;essayer ult&eacute;rieurement, merci de votre compr&eacute;hension.</p>";
	exit;
}

// Check if the server is configured to automatically compress the output
if (!ini_get('zlib.output_compression') && !ini_get('zlib.output_handler'))
{ 
    // Check if we can use ob_gzhandler (requires the zlib extension)
    if (function_exists('ob_gzhandler'))
    {
        // let ob_gzhandler do the dirty job
        ob_start('ob_gzhandler');
    }
    // else let do the dirty job ourselves...
    elseif (!empty($_SERVER['HTTP_ACCEPT_ENCODING']) && strstr($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') && function_exists('gzencode'))
    {
        ob_start ('gzencode');
        // Tell the browser the content is compressed with gzip 
        header ("Content-Encoding: gzip"); 
    }
} 

// go!
if (!isset($method)) $method='';

// Security (quick hack)  : Check method syntax
if (!(preg_match('#^[A-Za-z0-9_]*$#',$method))) {
	$method='';
}

$p->Run($page, $method);?>