WikimediaCommons.php

<?php

/**
 * @copyright Copyright (c) 2019 Felix Nüsse <felix.nuesse@t-online.de>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OCA\Unsplash\Provider;

use OCA\Unsplash\ProviderHandler\Provider;

class WikimediaCommons extends Provider
{

    /**
     * TODO : Properly get current nextcloud image, currently only the theming one is used.
     * @var string
     */
    public string $DEFAULT_SEARCH = "landscape,dog,cat";
    public bool $ALLOW_CUSTOMIZING = true;
    public bool $IS_CACHED = false;
    public string $DEFAULT_METADATA_URL="https://commons.wikimedia.org/wiki/Main_Page";

    public function getWhitelistResourceUrls()
    {
        return ["https://upload.wikimedia.org"];
    }

    public function getRandomImageUrl($size)
    {
        return $this->getRandomImageUrlBySearchTerm($this->getRandomSearchTerm(), $size);
    }

    public function getRandomImageUrlBySearchTerm($search, $size)
    {
        if(empty($search)) {
            $search = 'nature';
        }

        $url = 'https://commons.wikimedia.org/w/api.php';
        $url .= '?action=query';
        $url .= '&generator=categorymembers';
        $url .= '&gcmtitle=Category:' . $search;
        $url .= '&gcmlimit=100';
        $url .= '&gcmtype=file';
        $url .= '&prop=imageinfo';
        $url .= '&iiprop=url';
        $url .= '&format=json';

        $client = $this->clientService->newClient();
        $response = $client->get($url);
        $body = $response->getBody();
        $json = json_decode($body, true);

        try {
            $images = $json['query']['pages'][array_rand($json['query']['pages'])];
            return $images['imageinfo'][0]['url'];
        } catch (\Error $e) {
            $this->logger->alert("Your searchterms likely did not yield results for: ".$this->getName());
        }

        return (new NextcloudImage($this->appName, $this->logger, $this->config, $this->appData, $this->clientService, "Nextcloud"))->getRandomImageUrl($size);
    }

    public function getCachedImageURL(): string
    {
        return $this->getRandomImageUrl("");
    }
}