bookmarks/lib/Service/Previewers/ScreeenlyBookmarkPreviewer.php

107 lines
2.3 KiB
PHP

<?php
/*
* Copyright (c) 2020-2024. The Nextcloud Bookmarks contributors.
*
* This file is licensed under the Affero General Public License version 3 or later. See the COPYING file.
*/
namespace OCA\Bookmarks\Service\Previewers;
use Exception;
use OCA\Bookmarks\Contract\IBookmarkPreviewer;
use OCA\Bookmarks\Contract\IImage;
use OCA\Bookmarks\Db\Bookmark;
use OCA\Bookmarks\Image;
use OCP\Http\Client\IClient;
use OCP\Http\Client\IClientService;
use OCP\IConfig;
use Psr\Log\LoggerInterface;
class ScreeenlyBookmarkPreviewer implements IBookmarkPreviewer {
public const CACHE_PREFIX = 'bookmarks.ScreenlyPreviewService';
public const HTTP_TIMEOUT = 10 * 1000;
/**
* @var string
*/
private $apiKey;
/**
* @var IClient
*/
private $client;
/** @var LoggerInterface */
private $logger;
/**
* @var int
*/
private $width = 800;
/**
* @var int
*/
private $height = 800;
/**
* @var string
*/
private $apiUrl;
public function __construct(IConfig $config, IClientService $clientService, LoggerInterface $logger) {
$this->apiUrl = $config->getAppValue('bookmarks', 'previews.screenly.url', 'http://screeenly.com/api/v1/fullsize');
$this->apiKey = $config->getAppValue('bookmarks', 'previews.screenly.token', '');
$this->client = $clientService->newClient();
$this->logger = $logger;
}
/**
* @param Bookmark|null $bookmark
*
* @return Image|null
*/
public function getImage($bookmark): ?IImage {
if (!isset($bookmark)) {
return null;
}
if ('' === $this->apiKey) {
return null;
}
$url = $bookmark->getUrl();
// Fetch image from remote server
return $this->fetchImage($url);
}
/**
* @param string $url
* @return Image|null
*/
public function fetchImage($url): ?Image {
try {
$response = $this->client->post($this->apiUrl, ['body' => [
'key' => $this->apiKey,
'url' => $url,
'width' => $this->width,
'height' => $this->height,
],
'timeout' => self::HTTP_TIMEOUT,
]);
$body = json_decode($response->getBody(), true, 512, JSON_THROW_ON_ERROR);
} catch (Exception $e) {
$this->logger->debug($e->getMessage(), ['app' => 'bookmarks']);
return null;
}
// Some HTPP Error occured :/
if (200 !== $response->getStatusCode()) {
return null;
}
return new Image('image/jpeg', base64_decode($body['base64_raw']));
}
}