98 lines
2.9 KiB
PHP
98 lines
2.9 KiB
PHP
<?php
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namespace AirQuality\Actions;
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use \SBRL\TomlConfig;
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use \AirQuality\Repositories\IDeviceRepository;
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use \AirQuality\Repositories\IMeasurementTypeRepository;
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use \AirQuality\ApiResponseSender;
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use \AirQuality\Validator;
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/**
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* Action that lists the devices near a given location.
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*/
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class ListDevicesNear implements IAction {
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/** @var TomlConfig */
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private $settings;
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/** @var \SBRL\PerformanceCounter */
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private $perfcounter;
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/** @var IDeviceRepository */
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private $device_repo;
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/** @var IMeasurementTypeRepository */
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private $type_repo;
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/** @var ApiResponseSender */
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private $sender;
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/** @var Validator */
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private $validator_get;
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/** @var Validator */
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private $validator_post;
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public function __construct(
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TomlConfig $in_settings,
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IDeviceRepository $in_device_repo,
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ApiResponseSender $in_sender,
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\SBRL\PerformanceCounter $in_perfcounter) {
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$this->settings = $in_settings;
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$this->device_repo = $in_device_repo;
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$this->sender = $in_sender;
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$this->perfcounter = $in_perfcounter;
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$this->validator_get = new Validator($_GET);
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$this->validator_post = new Validator($_POST);
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}
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public function handle() : bool {
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global $start_time;
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if(strtolower($_SERVER["REQUEST_METHOD"]) !== "post") {
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$this->sender->send_error_plain(405, "Error: The devices-near action only takes a POST request, but you sent a {$_SERVER["REQUEST_METHOD"]} request. The parameters 'longitude' and 'latitude' should be specified in the POST body, and 'count' as a regular GET parameter.\nExample POST body (without quotes): 'latitude=12.345678&longitude=98.765432'\nDon't forget that the content-type header should be set to 'application/x-www-form-urlencoded'.", [
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[ "x-time-taken", $this->perfcounter->render() ]
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]);
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return false;
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}
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// 1: Validate params
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$this->validator_get->is_numberish("count");
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$this->validator_get->run();
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$this->validator_post->is_numberish("latitude");
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$this->validator_post->is_numberish("longitude");
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$this->validator_post->run();
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// 2: Pull data from database
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$this->perfcounter->start("sql");
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$data = $this->device_repo->get_near_location(
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floatval($_POST["latitude"]),
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floatval($_POST["longitude"]),
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intval($_GET["count"])
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);
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$this->perfcounter->end("sql");
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// 3: Serialise data
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$this->perfcounter->start("encode");
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$response = json_encode($data);
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$this->perfcounter->end("encode");
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// 4: Send response
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// Send a cache-control header, but only in production mode
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// FUTURE: Move last-seen to a different API call if caching becomes critically important?
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if($this->settings->get("env.mode") == "production") {
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header("cache-control: public, max-age=" . $this->settings->get("cache.max-age-supershort"));
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}
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header("content-length: " . strlen($response));
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header("content-type: application/json");
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header("x-time-taken: " . $this->perfcounter->render());
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echo($response);
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return true;
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}
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}
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