public static function contextify(SelectQuery $query)
{
$limit = self::$request->get("l")->filter(Filter::isNumber())->filter(Filter::isPositiveNumber());
$offset = self::$request->get("o")->filter(Filter::isNumber())->filter(Filter::isPositiveNumber());
$sort_field = self::$request->get("sf");
$sort_order = self::$request->get("so");
$max_limit = self::$settings->get("catalog", "items_per_request_limit");
$limit->then([$query, "limit"]);
$offset->then([$query, "offset"]);
// $query->limit($limit->filter(Filter::isLessThan($max_limit))->getOrElse($max_limit));
// $query->offset($offset->orZero());
}
/**
* Reads audio file metadata and returns Metadata object.
*
* @param string $filename
* @param string $original_filename
* @return Some
*/
public static function read($filename, $original_filename = null)
{
$escaped_filename = escapeshellarg($filename);
$file_format = strtolower(pathinfo($original_filename, PATHINFO_EXTENSION));
$command = sprintf(self::$settings->get("command_templates", "read_metadata"), self::$settings->get("tools", "ffprobe_cmd"), $escaped_filename);
exec($command, $result, $status);
if ($status != 0) {
return Option::None();
}
/**
* @var Option[] $metadata
* @var Option[] $o_format
* @var Option[] $o_tags
*/
$metadata = Option::Some(json_decode(implode("", $result), true));
$o_format = $metadata["format"];
$o_tags = $o_format["tags"];
$object = new Metadata();
$object->format_name = $file_format;
$object->filename = $o_format["filename"]->get();
$object->duration = $o_format["duration"]->map(function ($value) {
return intval($value * 1000);
})->get();
$object->size = $o_format["size"]->toInt()->get();
$object->bitrate = $o_format["bit_rate"]->toInt()->get();
$object->meta_artist = $o_tags["artist"]->orEmpty();
$object->meta_title = $o_tags["title"]->orEmpty();
$object->meta_genre = $o_tags["genre"]->orEmpty();
$object->meta_date = $o_tags["date"]->orEmpty();
$object->meta_album = $o_tags["album"]->orEmpty();
$object->meta_track_number = $o_tags["track"]->toInt()->orNull();
$object->meta_disc_number = $o_tags["disc"]->toInt()->orNull();
$object->meta_album_artist = $o_tags["album_artist"]->orEmpty();
$object->is_compilation = $o_tags["compilation"]->map("bool")->getOrElse("false");
$object->meta_comment = $o_tags["comment"]->orEmpty();
return Option::Some($object);
}
/**
* Reads audio file record from database and generates audio preview.
*/
public function preview()
{
Logger::printf("Requested preview for track %s", $this->track_id);
if ($this->hasPreview()) {
Logger::printf("Track preview is available (file_id is %s)", $this->track_data[TSongs::PREVIEW_ID]);
FileServer::sendToClient($this->track_data[TSongs::PREVIEW_ID]);
return;
}
Logger::printf("Track preview is unavailable");
Logger::printf("Generating new track preview in real time");
header("Content-Type: " . PREVIEW_MIME);
$temp_file = TempFileProvider::generate("preview", ".mp3");
$filename = FileServer::getFileUsingId($this->track_data[TSongs::FILE_ID]);
$command_template = "%s -i %s -bufsize 256k -vn -ab 128k -ac 2 -acodec libmp3lame -f mp3 - | tee %s";
$command = sprintf($command_template, $this->settings->get("tools", "ffmpeg_cmd"), escapeshellarg($filename), escapeshellarg($temp_file));
passthru($command);
$temp_file_id = FileServer::register($temp_file, PREVIEW_MIME);
Logger::printf("New preview registered => %s", $temp_file_id);
SongDao::updateSongUsingId($this->track_id, [TSongs::PREVIEW_ID => $temp_file_id]);
}
<?php
/**
* Database configuration file
*
* Created by PhpStorm
* User: roman
* Date: 16.07.15
* Time: 20:17
*/
use app\core\db\DatabaseConfiguration;
use app\core\etc\Settings;
use app\core\modular\Event;
Event::addFilter("database.configure", function (DatabaseConfiguration $config) {
$settings = Settings::getInstance();
$config->setDsnLogin($settings->get("pdo", "login"));
$config->setDsnPassword($settings->get("pdo", "password"));
$config->setDsnUri($settings->get("pdo", "dsn"));
return $config;
});
/**
* @param $hash
* @return string
*/
public static function hashToPath($hash)
{
$prefix = Settings::getInstance()->get("fs", "media");
return sprintf("%s/%s/%s", $prefix, substr($hash, 0, 1), substr($hash, 1, 1));
}