public function __construct()
{
header('Content-Type: text/javascript;charset="UTF-8"');
header('Cache-Control: no-store,no-cache,must-revalidate,post-check=0,pre-check=0');
header('Expires: 0');
$util = new IMUtil();
$util->outputSecurityHeaders();
}
/**
* @param bool $testmode
*/
function __construct($testmode = false)
{
if (!$testmode) {
header('Content-Type: text/javascript;charset="UTF-8"');
header('Cache-Control: no-store,no-cache,must-revalidate,post-check=0,pre-check=0');
header('Expires: 0');
header('X-Content-Type-Options: nosniff');
$util = new IMUtil();
$util->outputSecurityHeaders();
}
}
private function outputImage($content)
{
$rotate = false;
if (function_exists('exif_imagetype') && function_exists('imagejpeg') && strlen($content) > 0) {
$tmpDir = ini_get('upload_tmp_dir');
if ($tmpDir === '') {
$tmpDir = sys_get_temp_dir();
}
$temp = 'IM_TEMP_' . str_replace(base64_encode(randomString(12)), DIRECTORY_SEPARATOR, '-') . '.jpg';
if (mb_substr($tmpDir, 1) === DIRECTORY_SEPARATOR) {
$tempPath = $tmpDir . $temp;
} else {
$tempPath = $tmpDir . DIRECTORY_SEPARATOR . $temp;
}
$fp = fopen($tempPath, 'w');
if ($fp !== false) {
fwrite($fp, $content);
fclose($fp);
$imageType = image_type_to_mime_type(exif_imagetype($tempPath));
if ($imageType === 'image/jpeg') {
$image = imagecreatefromstring($content);
if ($image !== false) {
$exif = exif_read_data($tempPath);
if ($exif !== false && !empty($exif['Orientation'])) {
switch ($exif['Orientation']) {
case 3:
$content = imagerotate($image, 180, 0);
$rotate = true;
break;
case 6:
$content = imagerotate($image, -90, 0);
$rotate = true;
break;
case 8:
$content = imagerotate($image, 90, 0);
$rotate = true;
break;
}
}
}
if ($rotate === true) {
header('Content-Type: image/jpeg');
ob_start();
imagejpeg($content);
$size = ob_get_length();
header('Content-Length: ' . $size);
$util = new IMUtil();
$util->outputSecurityHeaders();
ob_end_flush();
}
imagedestroy($image);
}
unlink($tempPath);
}
}
if ($rotate === false) {
echo $content;
}
}
