$arr = unpack("c*", $length_bin);
$length = 0;
for ($i = 1; $i <= 4; $i++) {
$length += pow(256, 4 - $i) * $arr[$i];
}
return $length + 12;
}
function next_chunk($binary, $chunk_head_position)
{
return $chunk_head_position + get_chunk_length($binary, $chunk_head_position);
}
function is_animated($binary, $length)
{
$chunk_head_position = 8;
while ($chunk_head_position < $length) {
if (chunk_type_compare($binary, "IDAT", $chunk_head_position)) {
return false;
}
if (chunk_type_compare($binary, "acTL", $chunk_head_position)) {
return true;
}
$chunk_head_position = next_chunk($binary, $chunk_head_position);
}
return false;
}
$filename = $argv[1];
$f = fopen($filename, "rb");
$header = fread($f, 1024);
fclose($f);
var_dump(is_png($header) && is_animated($header, 1024));
function insert_post($data)
{
if ($data['posttype'] == 'video') {
// <iframe width="420" height="315" src="//www.youtube.com/embed/jIL0ze6_GIY" frameborder="0" allowfullscreen></iframe>
// <iframe src="http://player.vimeo.com/video/VIDEO_ID" width="WIDTH" height="HEIGHT" frameborder="0" webkitAllowFullScreen mozallowfullscreen allowFullScreen></iframe>
} else {
if ($data['posttype'] == 'url') {
/* $filePath = filePath($data['url']);
$this->load->library('upload');
$this->upload->file_ext = '.'.$filePath['extension'];
$name = $this->upload->set_filename('./uploads/',$filePath['basename']);
$img = './uploads/'.$name;
file_put_contents($img, file_get_contents($data['url']));*/
$url = $data['url'];
} else {
$url = base_url() . 'uploads/' . $data['file'];
}
if (is_animated($url)) {
$data['file_type'] = 'animation';
} else {
$data['file_type'] = 'normal';
}
}
$this->db->insert('posts', $data);
return $this->db->insert_id();
}
<?
die;
$where = "";
$params = array();
if (empty($where)) die;
include '../inc.common.php';
include '../engine/upload/functions.php';
$arts = Database::get_vector('art', array('id','md5','extension','resized','animated'), $where, $params);
foreach ($arts as $id => $art) {
$file = ROOT_DIR.SL.'images'.SL.'booru'.SL.'full'.SL.$art['md5'].'.'.$art['extension'];
$is_animated = is_animated($file);
if ($is_animated && empty($art['animated'])) {
Database::update('art', array('animated' => 1), $id);
} elseif (!$is_animated && !empty($art['animated'])) {
Database::update('art', array('animated' => 0), $id);
}
if (!empty($art['resized'])) {
$sizefile = filesize($file);
$dimensions = getimagesize($file);
if ($sizefile > 1024*1024) {
$sizefile = round($sizefile/(1024*1024),1).' мб';
} elseif ($sizefile > 1024) {
$sizefile = round($sizefile/1024,1).' кб';
function test()
{
if (is_animated("./uploads/2014/Jun/post-13204-13360912693.gif")) {
echo 'animated';
} else {
echo 'Not animated';
}
}
