/**
* Moves the uploaded file from its temporary location to the server.
*
* This method will also create web and thumbnail sizes of the media.
*
* @param array $file The uploaded file from the $_FILES array.
* @param string $filename The filename to be moved to.
* @param string $extension The extension of the moved file.
* @param string &$histograms Will be given a serialized histogram object.
* @param bool $allow_dupes Whether duplicates should be allowed.
* @return array A status array, where the 'status' index is the status code of the operation, and the 'response' index is a string describing the status.
*/
private static function move_to_server($file, $filename, $extension, &$histograms, $allow_dupes)
{
$move_to = UPLOADS_DIR . "/{$filename}.{$extension}";
// If the upload fails, return an error message
if (!move_uploaded_file($file['tmp_name'], $move_to)) {
return array('status' => STATUS_UPLOAD_ERROR, 'response' => "Couldn't move the file to the server.");
}
self::create_image_sizes($filename, $extension);
// Create a serialized histogram for the database
// Using the web source because it's smaller than the full size
$web_src = UPLOADS_DIR . "/{$filename}" . WEB_SRC_SUFFIX . ".{$extension}";
$thumb_src = UPLOADS_DIR . "/{$filename}" . THUMB_SRC_SUFFIX . ".{$extension}";
$histograms = Histogram::create_from($web_src);
// Compare histogram against exisiting images to prevent duplicates
$histogram = new Histogram($histograms);
$similar_id = $histogram->compare_against_database();
// If a similar image was found, return a status
if ($similar_id !== null && !$allow_dupes) {
// Delete the uploaded files from the server
unlink(UPLOADS_DIR . "/{$filename}.{$extension}");
unlink($web_src);
unlink($thumb_src);
return array('status' => STATUS_SIMILAR_EXISTS, 'response' => $similar_id);
}
return array('status' => STATUS_OK, 'response' => 'File successfully moved to server.');
}
