From: Hank Grabowski Date: Fri, 17 Feb 2023 18:24:00 +0000 (-0500) Subject: Add Link headers by offset/limit capability to BaseApi X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=2754cdc5d6661d27351f7c0d320f715f0b6105ba;p=friendica.git Add Link headers by offset/limit capability to BaseApi --- diff --git a/src/Module/BaseApi.php b/src/Module/BaseApi.php index 6a41198473..f8524b524e 100644 --- a/src/Module/BaseApi.php +++ b/src/Module/BaseApi.php @@ -168,6 +168,34 @@ class BaseApi extends BaseModule return 'Link: <' . $next . '>; rel="next", <' . $prev . '>; rel="prev"'; } + /** + * Get the "link" header with "next" and "prev" links for an offset/limit type call + * @return string + */ + protected static function getOffsetAndLimitLinkHeader(int $offset, int $limit): string + { + $request = self::$request; + + unset($request['offset']); + $request['limit'] = $limit; + + $prev_request = $next_request = $request; + + $prev_request['offset'] = $offset - $limit; + $next_request['offset'] = $offset + $limit; + + $command = DI::baseUrl() . '/' . DI::args()->getCommand(); + + $prev = $command . '?' . http_build_query($prev_request); + $next = $command . '?' . http_build_query($next_request); + + if ($prev_request['offset'] >= 0) { + return 'Link: <' . $next . '>; rel="next", <' . $prev . '>; rel="prev"'; + } else { + return 'Link: <' . $next . '>; rel="next"'; + } + } + /** * Set the "link" header with "next" and "prev" links * @return void @@ -180,6 +208,18 @@ class BaseApi extends BaseModule } } + /** + * Set the "link" header with "next" and "prev" links + * @return void + */ + protected static function setLinkHeaderByOffsetLimit(int $offset, int $limit) + { + $header = self::getOffsetAndLimitLinkHeader($offset, $limit); + if (!empty($header)) { + header($header); + } + } + /** * Check if the app is known to support quoted posts *