56d63355dd
git-svn-id: file:///home/shish/svn/shimmie2/trunk@229 7f39781d-f577-437e-ae19-be835c7a54ca
116 lines
3.1 KiB
PHP
116 lines
3.1 KiB
PHP
<?php
|
|
|
|
class RegenThumb extends Extension {
|
|
var $theme;
|
|
// event handler {{{
|
|
public function receive_event($event) {
|
|
if(is_null($this->theme)) $this->theme = get_theme_object("regen_thumb", "RegenThumbTheme");
|
|
|
|
if(is_a($event, 'PageRequestEvent') && ($event->page == "regen_thumb")) {
|
|
global $user;
|
|
if($user->is_admin() && isset($_POST['program']) && isset($_POST['image_id'])) {
|
|
$this->make_thumb($_POST['program'], $_POST['image_id']);
|
|
}
|
|
}
|
|
|
|
if(is_a($event, 'DisplayingImageEvent')) {
|
|
global $page;
|
|
global $user;
|
|
if($user->is_admin()) {
|
|
$this->theme->display_buttons($page, $event->image->id);
|
|
}
|
|
}
|
|
}
|
|
// }}}
|
|
// do things {{{
|
|
// FIXME: make locations of convert / epeg config variables
|
|
private function make_thumb($program, $image_id) {
|
|
global $database;
|
|
global $config;
|
|
|
|
$i_image_id = int_escape($image_id);
|
|
$image = $database->get_image($i_image_id);
|
|
|
|
$f_image = $this->check_filename($image->get_image_filename());
|
|
$f_thumb = $this->check_filename($image->get_thumb_filename());
|
|
|
|
$w = $config->get_int('thumb_width');
|
|
$h = $config->get_int('thumb_height');
|
|
$q = $config->get_int('thumb_quality');
|
|
|
|
switch($program) {
|
|
case 'convert':
|
|
if(file_exists($f_thumb)) unlink($f_thumb);
|
|
$mem = $config->get_int("thumb_max_memory") / 1024 / 1024; // IM takes memory in MB
|
|
// "-limit memory $mem" broken?
|
|
exec("convert {$f_image}[0] -geometry {$w}x{$h} -quality {$q} jpg:$f_thumb");
|
|
break;
|
|
case 'gd':
|
|
$this->make_thumb_gd($f_image, $f_thumb);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
global $page;
|
|
$this->theme->display_results($page, $image);
|
|
}
|
|
|
|
private function check_filename($filename) {
|
|
$filename = preg_replace("#[^a-zA-Z0-9/\._]#", "", $filename);
|
|
return $filename;
|
|
}
|
|
|
|
// }}}
|
|
// GD thumber {{{
|
|
private function read_file($fname) {
|
|
$fp = fopen($fname, "r");
|
|
if(!$fp) return false;
|
|
|
|
$data = fread($fp, filesize($fname));
|
|
fclose($fp);
|
|
|
|
return $data;
|
|
}
|
|
private function make_thumb_gd($inname, $outname) {
|
|
global $config;
|
|
$thumb = $this->get_thumb($inname);
|
|
return imagejpeg($thumb, $outname, $config->get_int('thumb_quality'));
|
|
}
|
|
|
|
private function get_thumb($tmpname) {
|
|
global $config;
|
|
|
|
$info = getimagesize($tmpname);
|
|
$width = $info[0];
|
|
$height = $info[1];
|
|
|
|
$memory_use = (filesize($tmpname)*2) + ($width*$height*4) + (4*1024*1024);
|
|
$memory_limit = get_memory_limit();
|
|
|
|
if($memory_use > $memory_limit) {
|
|
$w = $config->get_int('thumb_width');
|
|
$h = $config->get_int('thumb_height');
|
|
$thumb = imagecreatetruecolor($w, min($h, 64));
|
|
$white = imagecolorallocate($thumb, 255, 255, 255);
|
|
$black = imagecolorallocate($thumb, 0, 0, 0);
|
|
imagefill($thumb, 0, 0, $white);
|
|
imagestring($thumb, 5, 10, 24, "Image Too Large :(", $black);
|
|
return $thumb;
|
|
}
|
|
else {
|
|
$image = imagecreatefromstring($this->read_file($tmpname));
|
|
$tsize = get_thumbnail_size($width, $height);
|
|
|
|
$thumb = imagecreatetruecolor($tsize[0], $tsize[1]);
|
|
imagecopyresampled(
|
|
$thumb, $image, 0, 0, 0, 0,
|
|
$tsize[0], $tsize[1], $width, $height
|
|
);
|
|
return $thumb;
|
|
}
|
|
}
|
|
// }}}
|
|
}
|
|
add_event_listener(new RegenThumb());
|
|
?>
|