Friendica/friendica
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Set the "Link" header

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This commit is contained in:
Michael 2021-06-16 15:02:33 +00:00
parent d4f883a376
commit 78d4aff878
18 changed files with 98 additions and 18 deletions
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64
src/Module/BaseApi.php
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@ -44,6 +44,16 @@ class BaseApi extends BaseModule
*/
protected static $format = 'json';
/**
* @var array
*/
protected static $boundaries = [];
/**
* @var array
*/
protected static $request = [];
public static function init(array $parameters = [])
{
$arguments = DI::args();
@ -129,6 +139,11 @@ class BaseApi extends BaseModule
$httpinput = HTTPInputData::process();
$input = array_merge($httpinput['variables'], $httpinput['files'], $_REQUEST);
self::$request = $input;
self::$boundaries = [];
unset(self::$request['pagename']);
$request = [];
foreach ($defaults as $parameter => $defaultvalue) {
@ -160,6 +175,55 @@ class BaseApi extends BaseModule
return $request;
}
/**
* Set boundaries for the "link" header
* @param array $boundaries
* @param int $id
* @return array
*/
protected static function setBoundaries(int $id)
{
if (!isset(self::$boundaries['min'])) {
self::$boundaries['min'] = $id;
}
if (!isset(self::$boundaries['max'])) {
self::$boundaries['max'] = $id;
}
self::$boundaries['min'] = min(self::$boundaries['min'], $id);
self::$boundaries['max'] = max(self::$boundaries['max'], $id);
}
/**
* Set the "link" header with "next" and "prev" links
* @return void
*/
protected static function setLinkHeader()
{
if (empty(self::$boundaries)) {
return;
}
$request = self::$request;
unset($request['min_id']);
unset($request['max_id']);
unset($request['since_id']);
$prev_request = $next_request = $request;
$prev_request['min_id'] = self::$boundaries['max'] + 1;
$next_request['max_id'] = self::$boundaries['min'] - 1;
$command = DI::baseUrl() . '/' . DI::args()->getCommand();
$prev = $command . '?' . http_build_query($prev_request);
$next = $command . '?' . http_build_query($next_request);
header('Link: <' . $next . '>; rel="next", <' . $prev . '>; rel="prev"');
}
/**
* Get current application token
*