planiverse

A minimalist, no-JS front-end for Mastodon.
git clone https://git.stjo.hn/planiverse
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Links.php (1497B)

      1 <?php
      2 
      3 namespace App\Helpers;
      4 
      5 use Mastodon;
      6 use GuzzleHttp\Psr7;
      7 
      8 /**
      9  * Container class to hold pagination links.
     10  */
     11 class Links
     12 {
     13     public $next;
     14     public $prev;
     15 
     16     /**
     17 	 * Generate pagination links for the given route.
     18 	 *
     19 	 * After receiving a paginated response from the Mastodon API,
     20 	 * parse the "link" header from the Mastodon response and use
     21 	 * it to generate next and previous links for the requested route.
     22 	 *
     23 	 * @param string[] $links_header An array of values of the "link" header,
     24 	 *    as might be returned from Guzzle's getHeader() method.
     25 	 * @param string $route The name of the route to generate links for.
     26 	 */
     27     function __construct(array $links_header, string $route)
     28     {
     29         foreach (Psr7\parse_header($links_header) as $link)
     30         {
     31             # Find the prev and next links.
     32             if ($link['rel'] === 'prev' || $link['rel'] === 'next')
     33             {
     34                 $url = parse_url(trim($link[0], '<>'));
     35                 foreach (explode('&', $url['query']) as $query_param)
     36                 {
     37                     # Grab the ID query parameters from the link.
     38                     if (strpos($query_param, 'max_id=') === 0
     39                         || strpos($query_param, 'since_id=') === 0)
     40                     {
     41                         # Construct new links with the correct offset.
     42                         $this->{$link['rel']} = route($route) . '?' . $query_param;
     43                     }
     44                 }
     45             }
     46         }
     47     }
     48 }