public static function get_mediatype($mime, $filename = '')
{
$mediatype = static::mimetype2mediatype($mime);
if ($mediatype === 'other' && !empty($filename)) {
$ext = \pdyn\filesystem\FilesystemUtils::get_ext($filename);
$mimefromext = \pdyn\filesystem\Mimetype::ext2mime($ext);
$mediatype = static::mimetype2mediatype($mimefromext);
}
return $mediatype;
}
/**
* Download the file at $url and store locally.
*
* @param string $url The URL to fetch.
* @param string $local_path The path to store the file, should be a full path, and include the desired filename
* @param boolean $append_ext_based_on_mime If true, append an appropriate extension to $local_path.
* @return array Array of The $local_path (with appended extension, if $append_ext_based_on_mime is true), and the response object
*/
public function download($url, $local_path, $append_ext_based_on_mime = false)
{
$fp = fopen($local_path, 'w+');
$additional_opts = [CURLOPT_FILE => &$fp, CURLOPT_TIMEOUT => 1800, CURLOPT_CONNECTTIMEOUT => 15];
$response = $this->request($url, 'get', array(), $additional_opts);
fclose($fp);
$responseerrors = $response->errors();
if (!empty($responseerrors)) {
if (!empty($this->logger)) {
$this->logger->debug('httpclient download failed: ' . $response->get_debug_string());
}
return [false, $response];
}
if ($append_ext_based_on_mime === true) {
$mime = $response->mime_type();
$ext = \pdyn\filesystem\Mimetype::mime2ext($mime);
if (empty($ext) || $ext === 'unknown') {
$ext = \pdyn\filesystem\FilesystemUtils::get_ext($url);
$mime = \pdyn\filesystem\Mimetype::ext2mime($ext);
}
rename($local_path, $local_path . '.' . $ext);
$local_path = $local_path . '.' . $ext;
}
return [$local_path, $response];
}
/**
* Analyze the file for MIME type.
*
* @return string The mime type.
*/
public function get_analyzed_mimetype()
{
return \pdyn\filesystem\FilesystemUtils::get_mime_type($this->stored_filename);
}
/**
* Serve a file.
*
* Includes support for range requests/partial content.
*
* @param $file The absolute filename
* @param $mime The mimetype of the file.
* @param $filename The filename to serve the file as.
*/
public static function serve_file($file, $mime = '', $filename = '', $forcedownload = false)
{
if (!file_exists($file)) {
throw new Exception('File not found', Exception::ERR_RESOURCE_NOT_FOUND);
}
if (empty($mime)) {
$mime = \pdyn\filesystem\FilesystemUtils::get_mime_type($file);
}
if (empty($filename)) {
$filename = basename($file);
}
static::caching_headers($file, filemtime($file), true);
clearstatcache();
$fp = fopen($file, 'r');
$size = filesize($file);
$length = $size;
$start = 0;
$end = $size - 1;
header('Accept-Ranges: 0-' . $length);
if (isset($_SERVER['HTTP_RANGE'])) {
$c_start = $start;
$c_end = $end;
list(, $range) = explode('=', $_SERVER['HTTP_RANGE'], 2);
if (strpos($range, ',') !== false) {
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header('Content-Range: bytes ' . $start . '-' . $end . '/' . $size);
exit;
}
if ($range == '-') {
$c_start = $size - mb_substr($range, 1);
} else {
$range = explode('-', $range);
$c_start = $range[0];
$c_end = isset($range[1]) && is_numeric($range[1]) ? $range[1] : $size;
}
$c_end = $c_end > $end ? $end : $c_end;
if ($c_start > $c_end || $c_start > $size - 1 || $c_end >= $size) {
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header('Content-Range: bytes ' . $start . '-' . $end . '/' . $size);
exit;
}
$start = $c_start;
$end = $c_end;
$length = $end - $start + 1;
fseek($fp, $start);
header('HTTP/1.1 206 Partial Content');
}
header('Content-Range: bytes ' . $start . '-' . $end . '/' . $size);
header('Content-Length: ' . $length);
header('Content-Type: ' . $mime);
if ($forcedownload === true) {
header('Content-disposition: attachment; filename="' . $filename . '"');
}
$buffer = 1024 * 8;
while (!feof($fp) && ($p = ftell($fp)) <= $end) {
if ($p + $buffer > $end) {
$buffer = $end - $p + 1;
}
set_time_limit(0);
echo fread($fp, $buffer);
flush();
}
fclose($fp);
}
/**
* Load an image file into the object.
*
* @param string $filename The filename of the image.
* @param bool $loadexif Whether to load exif information (can cause memory problems with large files).
*/
protected function load_from_file($filename, $loadexif = true)
{
if (!file_exists($filename)) {
throw new \Exception('File "' . $filename . '" not found', static::ERR_FILE_NOT_FOUND);
}
$this->filename = $filename;
// Create image resource.
$this->mime = \pdyn\filesystem\FilesystemUtils::get_mime_type($this->filename);
switch ($this->mime) {
case 'image/jpeg':
$this->res = @imagecreatefromjpeg($this->filename);
break;
case 'image/png':
$this->res = @imagecreatefrompng($this->filename);
break;
case 'image/gif':
$this->res = @imagecreatefromgif($this->filename);
break;
default:
throw new \Exception('Filetype not supported', static::ERR_FILETYPE_NOT_SUPPORTED);
}
if (empty($this->res)) {
throw new \Exception('Error opening file.', static::ERR_BAD_INPUT);
}
if ($loadexif === true && $this->mime === 'image/jpeg') {
$this->exif = $this->get_exif_pel();
}
}
/**
* Assign values to class properties.
*
* @param array $info An array of data to assign.
* @return bool Success/Failure.
*/
protected function populate(array $info = array())
{
if (empty($info)) {
$this->post_populate();
return false;
}
// Load datatype information into static var cache.
$obj_datatypes = static::get_obj_datatypes($this->DB);
$info = array_intersect_key($info, $obj_datatypes);
foreach ($info as $key => $val) {
switch ($obj_datatypes[$key]) {
case 'email':
if (\pdyn\datatype\Validator::email($val)) {
$this->{$key} = (string) $val;
}
break;
case 'timestamp':
if ((int) $val > 0) {
$this->{$key} = (int) $val;
}
break;
case 'str':
case 'text':
case 'longtext':
$this->{$key} = (string) $val;
break;
case 'filename':
$val = trim($val);
if (!empty($val)) {
$this->{$key} = \pdyn\filesystem\FilesystemUtils::sanitize_filename($val);
}
break;
case 'int':
case 'bigint':
$this->{$key} = (int) $val;
break;
case 'float':
$this->{$key} = (double) $val;
break;
case 'id':
$this->{$key} = (int) $val;
break;
case 'bool':
$this->{$key} = (bool) $val;
break;
case 'user_id':
if (\pdyn\datatype\Id::validate($val) === true) {
$this->{$key} = (int) $val;
}
break;
case 'url':
if (\pdyn\datatype\Url::validate($val) === true) {
$this->{$key} = (string) $val;
}
break;
case 'mime':
if (\pdyn\datatype\Validator::mime($val) === true) {
$this->{$key} = (string) $val;
}
break;
default:
if (is_array($obj_datatypes[$key])) {
if (in_array($val, $obj_datatypes[$key], true)) {
$this->{$key} = $val;
}
} else {
$this->{$key} = $val;
}
}
}
$this->post_populate();
return true;
}
