/**
* 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)
{
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);
}
