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<?php
namespace Shaarli\Api\Controllers;
use Shaarli\Api\ApiUtils;
use Shaarli\Api\Exceptions\ApiBadParametersException;
use Shaarli\Api\Exceptions\ApiLinkNotFoundException;
use Slim\Http\Request;
use Slim\Http\Response;
/**
* Class Links
*
* REST API Controller: all services related to bookmarks collection.
*
* @package Api\Controllers
* @see http://shaarli.github.io/api-documentation/#links-links-collection
*/
class Links extends ApiController
{
/**
* @var int Number of bookmarks returned if no limit is provided.
*/
public static $DEFAULT_LIMIT = 20;
/**
* Retrieve a list of bookmarks, allowing different filters.
*
* @param Request $request Slim request.
* @param Response $response Slim response.
*
* @return Response response.
*
* @throws ApiBadParametersException Invalid parameters.
*/
public function getLinks($request, $response)
{
$private = $request->getParam('visibility');
$bookmarks = $this->bookmarkService->search(
[
'searchtags' => $request->getParam('searchtags', ''),
'searchterm' => $request->getParam('searchterm', ''),
],
$private
);
// Return bookmarks from the {offset}th link, starting from 0.
$offset = $request->getParam('offset');
if (! empty($offset) && ! ctype_digit($offset)) {
throw new ApiBadParametersException('Invalid offset');
}
$offset = ! empty($offset) ? intval($offset) : 0;
if ($offset > count($bookmarks)) {
return $response->withJson([], 200, $this->jsonStyle);
}
// limit parameter is either a number of bookmarks or 'all' for everything.
$limit = $request->getParam('limit');
if (empty($limit)) {
$limit = self::$DEFAULT_LIMIT;
} elseif (ctype_digit($limit)) {
$limit = intval($limit);
} elseif ($limit === 'all') {
$limit = count($bookmarks);
} else {
throw new ApiBadParametersException('Invalid limit');
}
// 'environment' is set by Slim and encapsulate $_SERVER.
$indexUrl = index_url($this->ci['environment']);
$out = [];
$index = 0;
foreach ($bookmarks as $bookmark) {
if (count($out) >= $limit) {
break;
}
if ($index++ >= $offset) {
$out[] = ApiUtils::formatLink($bookmark, $indexUrl);
}
}
return $response->withJson($out, 200, $this->jsonStyle);
}
/**
* Return a single formatted link by its ID.
*
* @param Request $request Slim request.
* @param Response $response Slim response.
* @param array $args Path parameters. including the ID.
*
* @return Response containing the link array.
*
* @throws ApiLinkNotFoundException generating a 404 error.
*/
public function getLink($request, $response, $args)
{
$id = is_integer_mixed($args['id']) ? (int) $args['id'] : null;
if ($id === null || ! $this->bookmarkService->exists($id)) {
throw new ApiLinkNotFoundException();
}
$index = index_url($this->ci['environment']);
$out = ApiUtils::formatLink($this->bookmarkService->get($id), $index);
return $response->withJson($out, 200, $this->jsonStyle);
}
/**
* Creates a new link from posted request body.
*
* @param Request $request Slim request.
* @param Response $response Slim response.
*
* @return Response response.
*/
public function postLink($request, $response)
{
$data = (array) ($request->getParsedBody() ?? []);
$bookmark = ApiUtils::buildBookmarkFromRequest($data, $this->conf->get('privacy.default_private_links'));
// duplicate by URL, return 409 Conflict
if (
! empty($bookmark->getUrl())
&& ! empty($dup = $this->bookmarkService->findByUrl($bookmark->getUrl()))
) {
return $response->withJson(
ApiUtils::formatLink($dup, index_url($this->ci['environment'])),
409,
$this->jsonStyle
);
}
$this->bookmarkService->add($bookmark);
$out = ApiUtils::formatLink($bookmark, index_url($this->ci['environment']));
$redirect = $this->ci->router->pathFor('getLink', ['id' => $bookmark->getId()]);
return $response->withAddedHeader('Location', $redirect)
->withJson($out, 201, $this->jsonStyle);
}
/**
* Updates an existing link from posted request body.
*
* @param Request $request Slim request.
* @param Response $response Slim response.
* @param array $args Path parameters. including the ID.
*
* @return Response response.
*
* @throws ApiLinkNotFoundException generating a 404 error.
*/
public function putLink($request, $response, $args)
{
$id = is_integer_mixed($args['id']) ? (int) $args['id'] : null;
if ($id === null || !$this->bookmarkService->exists($id)) {
throw new ApiLinkNotFoundException();
}
$index = index_url($this->ci['environment']);
$data = $request->getParsedBody();
$requestBookmark = ApiUtils::buildBookmarkFromRequest($data, $this->conf->get('privacy.default_private_links'));
// duplicate URL on a different link, return 409 Conflict
if (
! empty($requestBookmark->getUrl())
&& ! empty($dup = $this->bookmarkService->findByUrl($requestBookmark->getUrl()))
&& $dup->getId() != $id
) {
return $response->withJson(
ApiUtils::formatLink($dup, $index),
409,
$this->jsonStyle
);
}
$responseBookmark = $this->bookmarkService->get($id);
$responseBookmark = ApiUtils::updateLink($responseBookmark, $requestBookmark);
$this->bookmarkService->set($responseBookmark);
$out = ApiUtils::formatLink($responseBookmark, $index);
return $response->withJson($out, 200, $this->jsonStyle);
}
/**
* Delete an existing link by its ID.
*
* @param Request $request Slim request.
* @param Response $response Slim response.
* @param array $args Path parameters. including the ID.
*
* @return Response response.
*
* @throws ApiLinkNotFoundException generating a 404 error.
*/
public function deleteLink($request, $response, $args)
{
$id = is_integer_mixed($args['id']) ? (int) $args['id'] : null;
if ($id === null || !$this->bookmarkService->exists($id)) {
throw new ApiLinkNotFoundException();
}
$bookmark = $this->bookmarkService->get($id);
$this->bookmarkService->remove($bookmark);
return $response->withStatus(204);
}
}
|
