254 lines
5.8 KiB
PHP
254 lines
5.8 KiB
PHP
<?php
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/**
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* Utilities for handling pagenames
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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/**
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* Fetch the pageid
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*
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* Uses either standard $_REQUEST variable or extracts it from
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* the full request URI when userewrite is set to 2
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*
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* Returns $conf['start'] if no id was found.
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function getID(){
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global $conf;
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$id = cleanID($_REQUEST['id']);
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//construct page id from request URI
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if(empty($id) && $conf['userewrite'] == 2){
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//get the script URL
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if($conf['basedir']){
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$script = $conf['basedir'].DOKU_SCRIPT;
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}elseif($_SERVER['DOCUMENT_ROOT'] && $_SERVER['SCRIPT_FILENAME']){
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$script = preg_replace ('/^'.preg_quote($_SERVER['DOCUMENT_ROOT'],'/').'/','',
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$_SERVER['SCRIPT_FILENAME']);
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$script = '/'.$script;
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}else{
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$script = $_SERVER['SCRIPT_NAME'];
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}
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//clean script and request (fixes a windows problem)
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$script = preg_replace('/\/\/+/','/',$script);
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$request = preg_replace('/\/\/+/','/',$_SERVER['REQUEST_URI']);
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//remove script URL and Querystring to gain the id
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if(preg_match('/^'.preg_quote($script,'/').'(.*)/',$request, $match)){
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$id = preg_replace ('/\?.*/','',$match[1]);
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}
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$id = cleanID($id);
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}
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if(empty($id)) $id = $conf['start'];
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return $id;
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}
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/**
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* Remove unwanted chars from ID
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*
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* Cleans a given ID to only use allowed characters. Accented characters are
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* converted to unaccented ones
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function cleanID($id){
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global $conf;
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global $lang;
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$id = trim($id);
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$id = utf8_strtolower($id);
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//alternative namespace seperator
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$id = strtr($id,';',':');
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if($conf['useslash']){
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$id = strtr($id,'/',':');
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}else{
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$id = strtr($id,'/','_');
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}
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if($conf['deaccent']) $id = utf8_deaccent($id,-1);
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//remove specials
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$id = utf8_stripspecials($id,'_');
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//clean up
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$id = preg_replace('#_+#','_',$id);
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$id = preg_replace('#:+#',':',$id);
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$id = trim($id,':._-');
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$id = preg_replace('#:[:\._\-]+#',':',$id);
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return($id);
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}
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/**
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* Return namespacepart of a wiki ID
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function getNS($id){
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if(strpos($id,':')!==false){
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return substr($id,0,strrpos($id,':'));
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}
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return false;
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}
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/**
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* Returns the ID without the namespace
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function noNS($id){
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return preg_replace('/.*:/','',$id);
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}
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/**
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* returns the full path to the datafile specified by ID and
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* optional revision
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*
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* The filename is URL encoded to protect Unicode chars
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function wikiFN($id,$rev=''){
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global $conf;
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$id = cleanID($id);
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$id = str_replace(':','/',$id);
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if(empty($rev)){
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$fn = $conf['datadir'].'/'.utf8_encodeFN($id).'.txt';
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}else{
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$fn = $conf['olddir'].'/'.utf8_encodeFN($id).'.'.$rev.'.txt';
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if($conf['usegzip'] && !@file_exists($fn)){
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//return gzip if enabled and plaintext doesn't exist
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$fn .= '.gz';
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}
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}
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return $fn;
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}
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/**
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* returns the full path to the mediafile specified by ID
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*
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* The filename is URL encoded to protect Unicode chars
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function mediaFN($id){
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global $conf;
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$id = cleanID($id);
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$id = str_replace(':','/',$id);
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$fn = $conf['mediadir'].'/'.utf8_encodeFN($id);
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return $fn;
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}
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/**
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* Returns the full filepath to a localized textfile if local
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* version isn't found the english one is returned
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function localeFN($id){
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global $conf;
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$file = DOKU_INC.'inc/lang/'.$conf['lang'].'/'.$id.'.txt';
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if(!@file_exists($file)){
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//fall back to english
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$file = DOKU_INC.'inc/lang/en/'.$id.'.txt';
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}
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return $file;
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}
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/**
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* Returns a full media id
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function resolve_mediaid($ns,&$page,&$exists){
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global $conf;
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//if links starts with . add current namespace
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if($page{0} == '.'){
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$page = $ns.':'.substr($page,1);
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}
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//if link contains no namespace. add current namespace (if any)
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if($ns !== false && strpos($page,':') === false){
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$page = $ns.':'.$page;
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}
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$page = cleanID($page);
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$file = mediaFN($page);
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$exists = @file_exists($file);
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}
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/**
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* Returns a full page id
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function resolve_pageid($ns,&$page,&$exists){
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global $conf;
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$exists = false;
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//if links starts with . add current namespace
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if($page{0} == '.'){
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$page = $ns.':'.substr($page,1);
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}
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//if link contains no namespace. add current namespace (if any)
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if($ns !== false && strpos($page,':') === false){
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$page = $ns.':'.$page;
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}
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//keep hashlink if exists then clean both parts
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list($page,$hash) = split('#',$page,2);
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$page = cleanID($page);
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$hash = cleanID($hash);
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$file = wikiFN($page);
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//check alternative plural/nonplural form
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if(!@file_exists($file)){
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if( $conf['autoplural'] ){
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if(substr($page,-1) == 's'){
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$try = substr($page,0,-1);
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}else{
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$try = $page.'s';
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}
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if(@file_exists(wikiFN($try))){
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$page = $try;
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$exists = true;
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}
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}
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}else{
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$exists = true;
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}
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//add hash if any
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if(!empty($hash)) $page .= '#'.$hash;
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}
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/**
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* Returns the name of a cachefile from given data
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*
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* The needed directory is created by this function!
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*
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* @param string $data This data is used to create a unique md5 name
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* @param string $ext This is appended to the filename if given
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* @return string The filename of the cachefile
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*/
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function getCacheName($data,$ext=''){
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global $conf;
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$md5 = md5($data);
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$file = $conf['cachedir'].'/'.$md5{0}.'/'.$md5.$ext;
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io_makeFileDir($file);
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return $file;
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}
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//Setup VIM: ex: et ts=2 enc=utf-8 :
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