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<?php
/**
* Wrapper around the mpdf library class
*
* This class overrides some functions to make mpdf make use of DokuWiki'
* standard tools instead of its own.
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
global $conf;
if(!defined('_MPDF_TEMP_PATH')) define('_MPDF_TEMP_PATH', $conf['tmpdir'].'/dwpdf/'.rand(1,1000).'/');
if(!defined('_MPDF_TTFONTDATAPATH')) define('_MPDF_TTFONTDATAPATH',$conf['cachedir'].'/mpdf_ttf/');
require_once(dirname(__FILE__)."/mpdf/mpdf.php");
/**
* Class DokuPDF
* Some DokuWiki specific extentions
*/
class DokuPDF extends mpdf {
function __construct($pagesize='A4', $orientation='portrait', $fontsize){
global $conf;
io_mkdir_p(_MPDF_TTFONTDATAPATH);
io_mkdir_p(_MPDF_TEMP_PATH);
$format = $pagesize;
if($orientation == 'landscape') {
$format .= '-L';
}
switch($conf['lang']) {
case 'zh':
case 'zh-tw':
case 'ja':
case 'ko':
$mode = '+aCJK';
break;
default:
$mode = 'UTF-8-s';
}
// we're always UTF-8
parent::__construct($mode, $format, $fontsize);
$this->autoScriptToLang = true;
$this->baseScript = 1;
$this->autoVietnamese = true;
$this->autoArabic = true;
$this->autoLangToFont = true;
$this->ignore_invalid_utf8 = true;
$this->tabSpaces = 4;
}
/**
* Cleanup temp dir
*/
function __destruct(){
io_rmdir(_MPDF_TEMP_PATH, true);
}
/**
* Decode all paths, since DokuWiki uses XHTML compliant URLs
*/
function GetFullPath(&$path,$basepath=''){
$path = htmlspecialchars_decode($path);
parent::GetFullPath($path, $basepath);
}
/**
* Override the mpdf _getImage function
*
* This function takes care of gathering the image data from HTTP or
* local files before passing the data back to mpdf's original function
* making sure that only cached file paths are passed to mpdf. It also
* takes care of checking image ACls.
*/
function _getImage(&$file, $firsttime=true, $allowvector=true, $orig_srcpath=false, $interpolation = false){
global $conf;
// build regex to parse URL back to media info
$re = preg_quote(ml('xxx123yyy','',true,'&',true),'/');
$re = str_replace('xxx123yyy','([^&\?]*)',$re);
// extract the real media from a fetch.php uri and determine mime
if(preg_match("/^$re/",$file,$m) ||
preg_match('/[&\?]media=([^&\?]*)/',$file,$m)){
$media = rawurldecode($m[1]);
list($ext,$mime) = mimetype($media);
}else{
list($ext,$mime) = mimetype($file);
}
// local files
$local = '';
if(substr($file,0,9) == 'dw2pdf://'){
// support local files passed from plugins
$local = substr($file,9);
}elseif(!preg_match('/(\.php|\?)/',$file)){
$re = preg_quote(DOKU_URL,'/');
// directly access local files instead of using HTTP, skip dynamic content
$local = preg_replace("/^$re/i",DOKU_INC,$file);
}
if(substr($mime,0,6) == 'image/'){
if(!empty($media)){
// any size restrictions?
$w = $h = 0;
if(preg_match('/[\?&]w=(\d+)/',$file, $m)) $w = $m[1];
if(preg_match('/[\?&]h=(\d+)/',$file, $m)) $h = $m[1];
if(media_isexternal($media)){
$local = media_get_from_URL($media,$ext,-1);
if(!$local) $local = $media; // let mpdf try again
}else{
$media = cleanID($media);
//check permissions (namespace only)
if(auth_quickaclcheck(getNS($media).':X') < AUTH_READ){
$file = '';
}
$local = mediaFN($media);
}
//handle image resizing/cropping
if($w && file_exists($local)){
if($h){
$local = media_crop_image($local,$ext,$w,$h);
}else{
$local = media_resize_image($local,$ext,$w,$h);
}
}
}elseif(media_isexternal($file)){ // fixed external URLs
$local = media_get_from_URL($file,$ext,$conf['cachetime']);
}
if($local){
$file = $local;
$orig_srcpath = $local;
}
}
return parent::_getImage($file, $firsttime, $allowvector, $orig_srcpath, $interpolation);
}
}