/**
* Get format from the image stream in the string.
* @param string
* @return mixed detected image format
*/
public static function getFormatFromString($s)
{
$types = array('image/jpeg' => self::JPEG, 'image/gif' => self::GIF, 'image/png' => self::PNG);
$type = Tools::detectMimeTypeFromString($s);
return isset($types[$type]) ? $types[$type] : NULL;
}
/**
* The data: URI generator.
* @param string
* @param string
* @return string
*/
public static function dataStream($data, $type = NULL)
{
if ($type === NULL) {
$type = Nette\Tools::detectMimeTypeFromString($data, NULL);
}
return 'data:' . ($type ? "$type;" : '') . 'base64,' . base64_encode($data);
}
/**
* Creates file MIME part.
* @return MailMimePart
*/
private function createAttachment($file, $content, $contentType, $disposition)
{
$part = new MailMimePart;
if ($content === NULL) {
$content = file_get_contents($file);
if ($content === FALSE) {
throw new \FileNotFoundException("Unable to read file '$file'.");
}
} else {
$content = (string) $content;
}
$part->setBody($content);
$part->setContentType($contentType ? $contentType : Nette\Tools::detectMimeTypeFromString($content));
$part->setEncoding(preg_match('#(multipart|message)/#A', $contentType) ? self::ENCODING_8BIT : self::ENCODING_BASE64);
$part->setHeader('Content-Disposition', $disposition . '; filename="' . String::fixEncoding(basename($file)) . '"');
return $part;
}