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Add Unsplash background image support

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Dale Davies
2022-06-03 22:41:28 +01:00
parent 395c17ecdd
commit ad322ba0c0
13 changed files with 1030 additions and 26 deletions
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79
jumpapp/api/unsplashdata.php Normal file
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<?php
/**
* Proxy requests to Unsplash API and cache response.
*
* @author Dale Davies <dale@daledavies.co.uk>
* @license MIT
*/
// Provided by composer for psr-4 style autoloading.
require __DIR__ .'/../vendor/autoload.php';
$config = new Jump\Config();
$cache = new Jump\Cache($config);
// If this script is run via CLI then clear the cache and repopulate it,
// otherwise if run via web then get image data from cache and run this
// script asynchronously to refresh the cahce for next time.
if (http_response_code() === false) {
$cache->clear('unsplash');
load_cache_unsplash_data();
die('Cached data from Unsplash');
}
// Output header here so we can return early with a json response if there is a curl error.
header('Content-Type: application/json; charset=utf-8');
// Initialise a new session using the request object.
$session = new \Nette\Http\Session((new \Nette\Http\RequestFactory)->fromGlobals(), new \Nette\Http\Response);
$session->setName($config->get('sessionname'));
$session->setExpiration($config->get('sessiontimeout'));
// Get a Nette session section for CSRF data.
$csrfsection = $session->getSection('csrf');
// Has a CSRF token been set up for the session yet?
if (!$csrfsection->offsetExists('token')){
http_response_code(401);
die(json_encode(['error' => 'Session not fully set up']));
}
// Check CSRF token saved in session against token provided via request.
$token = isset($_GET['token']) ? $_GET['token'] : false;
if (!$token || !hash_equals($csrfsection->get('token'), $token)) {
http_response_code(401);
die(json_encode(['error' => 'API token is incorrect or missing']));
}
$unsplashdata = load_cache_unsplash_data();
shell_exec('/usr/bin/nohup /usr/bin/php -f unsplashdata.php >/dev/null 2>&1 &');
echo json_encode($unsplashdata);
function load_cache_unsplash_data() {
global $cache, $config;
return $cache->load(cachename: 'unsplash', callback: function() use ($config) {
Crew\Unsplash\HttpClient::init([
'utmSource' => 'jump_startpage',
'applicationId' => $config->get('unsplashapikey'),
]);
// Or apply some optional filters by passing a key value array of filters
$filters = [
'collections' => $config->get('unsplashcollections', false),
];
$photo = Crew\Unsplash\Photo::random($filters);
// Download the image data from Unsplash.
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $photo->urls['raw'] . '&auto=compress&w=1920');
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_FAILONERROR, true);
$response = curl_exec($ch);
$description = $photo->description?$photo->description:'Photo';
$unsplashdata = new stdClass();
$unsplashdata->cssimg = $photo->urls['raw'] . '&auto=compress&w=1920';
$unsplashdata->attribution = '<a target="_blank" rel="noopener" href="'.$photo->links['html'].'">'.$description.'</a> by <a target="_blank" rel="noopener" href="'.$photo->user['links']['html'].'">'.$photo->user['name'].'</a>';
$unsplashdata->blurhash = $photo->blur_hash;
$unsplashdata->imagedatauri = 'data: '.(new \finfo(FILEINFO_MIME_TYPE))->buffer($response).';base64,'.base64_encode($response);
return $unsplashdata;
});
}