mirror of
https://github.com/ConnectedHumber/Air-Quality-Web
synced 2024-12-22 10:25:01 +00:00
99 lines
2.7 KiB
PHP
99 lines
2.7 KiB
PHP
<?php
|
|
|
|
namespace AirQuality\Actions;
|
|
|
|
use \SBRL\TomlConfig;
|
|
use \SBRL\ResponseEncoder;
|
|
use \AirQuality\Repositories\IDeviceRepository;
|
|
use \AirQuality\ApiResponseSender;
|
|
|
|
|
|
class ListDevices implements IAction {
|
|
/** @var TomlConfig */
|
|
private $settings;
|
|
/** @var IDeviceRepository */
|
|
private $device_repo;
|
|
/** @var \SBRL\PerformanceCounter */
|
|
private $perfcounter;
|
|
|
|
/** @var ApiResponseSender */
|
|
private $sender;
|
|
|
|
public function __construct(
|
|
TomlConfig $in_settings,
|
|
IDeviceRepository $in_device_repo,
|
|
ApiResponseSender $in_sender,
|
|
\SBRL\PerformanceCounter $in_perfcounter) {
|
|
$this->settings = $in_settings;
|
|
$this->device_repo = $in_device_repo;
|
|
$this->sender = $in_sender;
|
|
$this->perfcounter = $in_perfcounter;
|
|
}
|
|
|
|
public function handle() : bool {
|
|
global $start_time;
|
|
|
|
|
|
// 1: Parse & validate parameters
|
|
$only_with_location = !empty($_GET["only-with-location"]);
|
|
|
|
$format = $_GET["format"] ?? "json";
|
|
if(!in_array($format, ["json", "csv"])) {
|
|
$this->sender->send_error_plain(406,
|
|
"Error: The format '$format' isn't recognised. Valid formats: " . implode(", ", $format) . "."
|
|
);
|
|
exit;
|
|
}
|
|
|
|
|
|
// 2: Pull data from database
|
|
$this->perfcounter->start("sql");
|
|
$data = $this->device_repo->get_all_devices($only_with_location);
|
|
$this->perfcounter->end("sql");
|
|
|
|
|
|
// 2.5: Validate data from database
|
|
if(empty($data)) {
|
|
$this->sender->send_error_plain(404,
|
|
"Error: No devices are currently present in the system.",
|
|
[ "x-time-taken: ", $this->perfcounter->render() ]
|
|
);
|
|
return false;
|
|
}
|
|
|
|
|
|
// 3: Serialise data
|
|
$this->perfcounter->start("encode");
|
|
$response = null;
|
|
$response_type = "application/octet-stream";
|
|
$response_suggested_filename = "data-" . date(\DateTime::ATOM) . "";
|
|
switch($format) {
|
|
case "json":
|
|
$response_type = "application/json";
|
|
$response_suggested_filename .= ".json";
|
|
$response = json_encode($data);
|
|
break;
|
|
case "csv":
|
|
$response_type = "text/csv";
|
|
$response_suggested_filename .= ".csv";
|
|
$response = ResponseEncoder::encode_csv($data);
|
|
break;
|
|
}
|
|
$this->perfcounter->end("encode");
|
|
|
|
// 4: Send response
|
|
|
|
// Don't cache for ages, because new devices might get added at any time
|
|
// FUTURE: Move last-seen to a different API call if caching becomes critically important?
|
|
if($this->settings->get("env.mode") == "production") {
|
|
header("cache-control: public, max-age=" . $this->settings->get("cache.max-age-supershort"));
|
|
}
|
|
|
|
header("content-length: " . strlen($response));
|
|
header("content-type: $response_type");
|
|
header("content-disposition: inline; filename=$response_suggested_filename");
|
|
header("x-time-taken: " . $this->perfcounter->render());
|
|
echo($response);
|
|
return true;
|
|
}
|
|
}
|