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<?php |
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declare(strict_types=1); |
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/** |
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* @copyright Copyright (c) 2020, Julien Veyssier |
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* |
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* @author Julien Veyssier <[email protected]> |
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* |
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* @license AGPL-3.0 |
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* |
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* This code is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License, version 3, |
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* as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License, version 3, |
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* along with this program. If not, see <http://www.gnu.org/licenses/> |
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* |
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*/ |
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namespace OCA\WeatherStatus\Service; |
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use OCP\IConfig; |
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use OCP\IL10N; |
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use OCP\App\IAppManager; |
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use OCP\Accounts\IAccountManager; |
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use OCP\Accounts\PropertyDoesNotExistException; |
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use OCP\IUserManager; |
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use OCP\Http\Client\IClientService; |
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use OCP\Http\Client\IClient; |
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use OCP\ICacheFactory; |
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use OCP\ICache; |
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use OCP\ILogger; |
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use OCA\WeatherStatus\AppInfo\Application; |
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/** |
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* Class WeatherStatusService |
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* |
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* @package OCA\WeatherStatus\Service |
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*/ |
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class WeatherStatusService { |
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public const MODE_BROWSER_LOCATION = 1; |
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public const MODE_MANUAL_LOCATION = 2; |
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/** @var IClientService */ |
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private $clientService; |
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/** @var IClient */ |
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private $client; |
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/** @var IConfig */ |
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private $config; |
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/** @var IL10N */ |
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private $l10n; |
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/** @var ILogger */ |
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private $logger; |
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/** @var IAccountManager */ |
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private $accountManager; |
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/** @var IUserManager */ |
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private $userManager; |
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/** @var IAppManager */ |
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private $appManager; |
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/** @var ICacheFactory */ |
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private $cacheFactory; |
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/** @var ICache */ |
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private $cache; |
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/** @var string */ |
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private $userId; |
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/** @var string */ |
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private $version; |
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/** |
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* WeatherStatusService constructor |
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* |
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* @param IClientService $clientService |
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* @param IConfig $config |
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* @param IL10N $l10n |
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* @param ILogger $logger |
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* @param IAccountManager $accountManager |
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* @param IUserManager $userManager |
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* @param IAppManager $appManager |
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* @param ICacheFactory $cacheFactory |
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* @param string $userId |
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*/ |
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public function __construct(IClientService $clientService, |
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IConfig $config, |
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IL10N $l10n, |
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ILogger $logger, |
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IAccountManager $accountManager, |
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IUserManager $userManager, |
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IAppManager $appManager, |
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ICacheFactory $cacheFactory, |
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string $userId) { |
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$this->config = $config; |
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$this->userId = $userId; |
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$this->l10n = $l10n; |
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$this->logger = $logger; |
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$this->accountManager = $accountManager; |
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$this->userManager = $userManager; |
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$this->appManager = $appManager; |
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$this->version = $appManager->getAppVersion(Application::APP_ID); |
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$this->clientService = $clientService; |
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$this->client = $clientService->newClient(); |
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if ($cacheFactory->isAvailable()) { |
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$this->cache = $cacheFactory->createDistributed(); |
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} |
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} |
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/** |
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* Change the weather status mode. There are currently 2 modes: |
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* - ask the browser |
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* - use the user defined address |
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* @param int $mode New mode |
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* @return array success state |
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*/ |
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public function setMode(int $mode): array { |
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$this->config->setUserValue($this->userId, Application::APP_ID, 'mode', strval($mode)); |
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return ['success' => true]; |
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} |
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/** |
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* Try to use the address set in user personal settings as weather location |
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* |
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* @return array with success state and address information |
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*/ |
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public function usePersonalAddress(): array { |
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$account = $this->accountManager->getAccount($this->userManager->get($this->userId)); |
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try { |
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$address = $account->getProperty('address')->getValue(); |
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} catch (PropertyDoesNotExistException $e) { |
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return ['success' => false]; |
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} |
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if ($address === '') { |
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return ['success' => false]; |
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} |
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return $this->setAddress($address); |
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} |
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/** |
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* Set address and resolve it to get coordinates |
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* or directly set coordinates and get address with reverse geocoding |
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* |
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* @param string|null $address Any approximative or exact address |
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* @param float|null $lat Latitude in decimal degree format |
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* @param float|null $lon Longitude in decimal degree format |
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* @return array with success state and address information |
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*/ |
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public function setLocation(?string $address, ?float $lat, ?float $lon): array { |
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if (!is_null($lat) && !is_null($lon)) { |
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// store coordinates |
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$this->config->setUserValue($this->userId, Application::APP_ID, 'lat', strval($lat)); |
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$this->config->setUserValue($this->userId, Application::APP_ID, 'lon', strval($lon)); |
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// resolve and store formatted address |
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$address = $this->resolveLocation($lat, $lon); |
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$address = $address ? $address : $this->l10n->t('Unknown address'); |
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$this->config->setUserValue($this->userId, Application::APP_ID, 'address', $address); |
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// get and store altitude |
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$altitude = $this->getAltitude($lat, $lon); |
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$this->config->setUserValue($this->userId, Application::APP_ID, 'altitude', strval($altitude)); |
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return [ |
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'address' => $address, |
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'success' => true, |
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]; |
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} elseif ($address) { |
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return $this->setAddress($address); |
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} else { |
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return ['success' => false]; |
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} |
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} |
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/** |
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* Provide address information from coordinates |
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* |
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* @param float $lat Latitude in decimal degree format |
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* @param float $lon Longitude in decimal degree format |
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*/ |
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private function resolveLocation(float $lat, float $lon): ?string { |
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$params = [ |
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'lat' => number_format($lat, 2), |
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'lon' => number_format($lon, 2), |
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'addressdetails' => 1, |
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'format' => 'json', |
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]; |
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$url = 'https://nominatim.openstreetmap.org/reverse'; |
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$result = $this->requestJSON($url, $params); |
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return $this->formatOsmAddress($result); |
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} |
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/** |
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* Get altitude from coordinates |
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* |
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* @param float $lat Latitude in decimal degree format |
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* @param float $lon Longitude in decimal degree format |
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* @return float altitude in meter |
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*/ |
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private function getAltitude(float $lat, float $lon): float { |
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$params = [ |
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'locations' => $lat . ',' . $lon, |
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]; |
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$url = 'https://api.opentopodata.org/v1/srtm30m'; |
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$result = $this->requestJSON($url, $params); |
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$altitude = 0; |
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if (isset($result['results']) && is_array($result['results']) && count($result['results']) > 0 |
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&& is_array($result['results'][0]) && isset($result['results'][0]['elevation'])) { |
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$altitude = floatval($result['results'][0]['elevation']); |
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} |
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return $altitude; |
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} |
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/** |
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* @return string Formatted address from JSON nominatim result |
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*/ |
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private function formatOsmAddress(array $json): ?string { |
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if (isset($json['address']) && isset($json['display_name'])) { |
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$jsonAddr = $json['address']; |
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$cityAddress = ''; |
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// priority : city, town, village, municipality |
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if (isset($jsonAddr['city'])) { |
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$cityAddress .= $jsonAddr['city']; |
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} elseif (isset($jsonAddr['town'])) { |
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$cityAddress .= $jsonAddr['town']; |
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} elseif (isset($jsonAddr['village'])) { |
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$cityAddress .= $jsonAddr['village']; |
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} elseif (isset($jsonAddr['municipality'])) { |
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$cityAddress .= $jsonAddr['municipality']; |
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} else { |
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return $json['display_name']; |
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} |
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// post code |
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if (isset($jsonAddr['postcode'])) { |
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$cityAddress .= ', ' . $jsonAddr['postcode']; |
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} |
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// country |
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if (isset($jsonAddr['country'])) { |
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$cityAddress .= ', ' . $jsonAddr['country']; |
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return $cityAddress; |
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} else { |
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return $json['display_name']; |
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} |
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} elseif (isset($json['display_name'])) { |
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return $json['display_name']; |
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} |
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return null; |
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} |
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/** |
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* Set address and resolve it to get coordinates |
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* |
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* @param string $address Any approximative or exact address |
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* @return array with success state and address information (coordinates and formatted address) |
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*/ |
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public function setAddress(string $address): array { |
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$addressInfo = $this->searchForAddress($address); |
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if (isset($addressInfo['display_name']) && isset($addressInfo['lat']) && isset($addressInfo['lon'])) { |
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$formattedAddress = $this->formatOsmAddress($addressInfo); |
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$this->config->setUserValue($this->userId, Application::APP_ID, 'address', $formattedAddress); |
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$this->config->setUserValue($this->userId, Application::APP_ID, 'lat', strval($addressInfo['lat'])); |
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$this->config->setUserValue($this->userId, Application::APP_ID, 'lon', strval($addressInfo['lon'])); |
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$this->config->setUserValue($this->userId, Application::APP_ID, 'mode', strval(self::MODE_MANUAL_LOCATION)); |
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// get and store altitude |
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$altitude = $this->getAltitude(floatval($addressInfo['lat']), floatval($addressInfo['lon'])); |
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$this->config->setUserValue($this->userId, Application::APP_ID, 'altitude', strval($altitude)); |
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return [ |
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'lat' => $addressInfo['lat'], |
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'lon' => $addressInfo['lon'], |
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'address' => $formattedAddress, |
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'success' => true, |
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]; |
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} else { |
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return ['success' => false]; |
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} |
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} |
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/** |
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* Ask nominatim information about an unformatted address |
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* |
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* @param string Unformatted address |
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* @return array Full Nominatim result for the given address |
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*/ |
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private function searchForAddress(string $address): array { |
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$params = [ |
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'format' => 'json', |
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'addressdetails' => '1', |
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'extratags' => '1', |
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'namedetails' => '1', |
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'limit' => '1', |
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]; |
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$url = 'https://nominatim.openstreetmap.org/search/' . $address; |
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$results = $this->requestJSON($url, $params); |
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if (count($results) > 0) { |
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return $results[0]; |
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} |
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return ['error' => $this->l10n->t('No result.')]; |
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} |
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/** |
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* Get stored user location |
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* |
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* @return array which contains coordinates, formatted address and current weather status mode |
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315
|
|
|
*/ |
|
316
|
|
|
public function getLocation(): array { |
|
317
|
|
|
$lat = $this->config->getUserValue($this->userId, Application::APP_ID, 'lat', ''); |
|
318
|
|
|
$lon = $this->config->getUserValue($this->userId, Application::APP_ID, 'lon', ''); |
|
319
|
|
|
$address = $this->config->getUserValue($this->userId, Application::APP_ID, 'address', ''); |
|
320
|
|
|
$mode = $this->config->getUserValue($this->userId, Application::APP_ID, 'mode', self::MODE_MANUAL_LOCATION); |
|
321
|
|
|
return [ |
|
322
|
|
|
'lat' => $lat, |
|
323
|
|
|
'lon' => $lon, |
|
324
|
|
|
'address' => $address, |
|
325
|
|
|
'mode' => intval($mode), |
|
326
|
|
|
]; |
|
327
|
|
|
} |
|
328
|
|
|
|
|
329
|
|
|
/** |
|
330
|
|
|
* Get forecast for current location |
|
331
|
|
|
* |
|
332
|
|
|
* @return array which contains success state and filtered forecast data |
|
333
|
|
|
*/ |
|
334
|
|
|
public function getForecast(): array { |
|
335
|
|
|
$lat = $this->config->getUserValue($this->userId, Application::APP_ID, 'lat', ''); |
|
336
|
|
|
$lon = $this->config->getUserValue($this->userId, Application::APP_ID, 'lon', ''); |
|
337
|
|
|
$alt = $this->config->getUserValue($this->userId, Application::APP_ID, 'altitude', ''); |
|
338
|
|
|
if (!is_numeric($alt)) { |
|
339
|
|
|
$alt = 0; |
|
340
|
|
|
} |
|
341
|
|
|
if (is_numeric($lat) && is_numeric($lon)) { |
|
342
|
|
|
return $this->forecastRequest(floatval($lat), floatval($lon), floatval($alt)); |
|
343
|
|
|
} else { |
|
344
|
|
|
return ['success' => false]; |
|
345
|
|
|
} |
|
346
|
|
|
} |
|
347
|
|
|
|
|
348
|
|
|
/** |
|
349
|
|
|
* Actually make the request to the forecast service |
|
350
|
|
|
* |
|
351
|
|
|
* @param float $lat Latitude of requested forecast, in decimal degree format |
|
352
|
|
|
* @param float $lon Longitude of requested forecast, in decimal degree format |
|
353
|
|
|
* @param float $altitude Altitude of requested forecast, in meter |
|
354
|
|
|
* @param int $nbValues Number of forecast values (hours) |
|
355
|
|
|
* @return array Filtered forecast data |
|
356
|
|
|
*/ |
|
357
|
|
|
private function forecastRequest(float $lat, float $lon, float $altitude, int $nbValues = 10): array { |
|
358
|
|
|
$params = [ |
|
359
|
|
|
'lat' => number_format($lat, 2), |
|
360
|
|
|
'lon' => number_format($lon, 2), |
|
361
|
|
|
'altitude' => $altitude, |
|
362
|
|
|
]; |
|
363
|
|
|
$url = 'https://api.met.no/weatherapi/locationforecast/2.0/compact'; |
|
364
|
|
|
$weather = $this->requestJSON($url, $params); |
|
365
|
|
|
if (isset($weather['properties']) && isset($weather['properties']['timeseries']) && is_array($weather['properties']['timeseries'])) { |
|
366
|
|
|
return array_slice($weather['properties']['timeseries'], 0, $nbValues); |
|
367
|
|
|
} |
|
368
|
|
|
return ['error' => $this->l10n->t('Malformed JSON data.')]; |
|
369
|
|
|
} |
|
370
|
|
|
|
|
371
|
|
|
/** |
|
372
|
|
|
* Make a HTTP GET request and parse JSON result. |
|
373
|
|
|
* Request results are cached until the 'Expires' response header says so |
|
374
|
|
|
* |
|
375
|
|
|
* @param string $url Base URL to query |
|
376
|
|
|
* @param array $params GET parameters |
|
377
|
|
|
* @return array which contains the error message or the parsed JSON result |
|
378
|
|
|
*/ |
|
379
|
|
|
private function requestJSON(string $url, array $params = []): array { |
|
380
|
|
|
if (isset($this->cache)) { |
|
381
|
|
|
$cacheKey = $url . '|' . implode(',', $params) . '|' . implode(',', array_keys($params)); |
|
382
|
|
|
if ($this->cache->hasKey($cacheKey)) { |
|
383
|
|
|
return $this->cache->get($cacheKey); |
|
384
|
|
|
} |
|
385
|
|
|
} |
|
386
|
|
|
try { |
|
387
|
|
|
$options = [ |
|
388
|
|
|
'headers' => [ |
|
389
|
|
|
'User-Agent' => 'NextcloudWeatherStatus/' . $this->version . ' nextcloud.com' |
|
390
|
|
|
], |
|
391
|
|
|
]; |
|
392
|
|
|
|
|
393
|
|
|
$reqUrl = $url; |
|
394
|
|
|
if (count($params) > 0) { |
|
395
|
|
|
$paramsContent = http_build_query($params); |
|
396
|
|
|
$reqUrl = $url . '?' . $paramsContent; |
|
397
|
|
|
} |
|
398
|
|
|
|
|
399
|
|
|
$response = $this->client->get($reqUrl, $options); |
|
400
|
|
|
$body = $response->getBody(); |
|
401
|
|
|
$headers = $response->getHeaders(); |
|
402
|
|
|
$respCode = $response->getStatusCode(); |
|
403
|
|
|
|
|
404
|
|
|
if ($respCode >= 400) { |
|
405
|
|
|
return ['error' => $this->l10n->t('Error')]; |
|
406
|
|
|
} else { |
|
407
|
|
|
$json = json_decode($body, true); |
|
408
|
|
|
if (isset($this->cache)) { |
|
409
|
|
|
// default cache duration is one hour |
|
410
|
|
|
$cacheDuration = 60 * 60; |
|
411
|
|
|
if (isset($headers['Expires']) && count($headers['Expires']) > 0) { |
|
412
|
|
|
// if the Expires response header is set, use it to define cache duration |
|
413
|
|
|
$expireTs = (new \Datetime($headers['Expires'][0]))->getTimestamp(); |
|
414
|
|
|
$nowTs = (new \Datetime())->getTimestamp(); |
|
415
|
|
|
$duration = $expireTs - $nowTs; |
|
416
|
|
|
if ($duration > $cacheDuration) { |
|
417
|
|
|
$cacheDuration = $duration; |
|
418
|
|
|
} |
|
419
|
|
|
} |
|
420
|
|
|
$this->cache->set($cacheKey, $json, $cacheDuration); |
|
|
|
|
|
|
421
|
|
|
} |
|
422
|
|
|
return $json; |
|
423
|
|
|
} |
|
424
|
|
|
} catch (\Exception $e) { |
|
425
|
|
|
$this->logger->warning($url . 'API error : ' . $e, ['app' => Application::APP_ID]); |
|
426
|
|
|
return ['error' => $e->getMessage()]; |
|
427
|
|
|
} |
|
428
|
|
|
} |
|
429
|
|
|
} |
|
430
|
|
|
|