284 lines
7.3 KiB
PHP
284 lines
7.3 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2010-2023, the Friendica project
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Module\Api;
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use Friendica\App\Arguments;
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use Friendica\App\BaseURL;
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use Friendica\Core\L10n;
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use Friendica\Module\Response;
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use Friendica\Util\Arrays;
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use Friendica\Util\DateTimeFormat;
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use Friendica\Util\XML;
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use Psr\Log\LoggerInterface;
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use Friendica\Factory\Api\Twitter\User as TwitterUser;
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/**
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* This class is used to format and create API responses
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*/
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class ApiResponse extends Response
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{
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/** @var L10n */
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protected $l10n;
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/** @var Arguments */
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protected $args;
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/** @var LoggerInterface */
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protected $logger;
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/** @var BaseURL */
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protected $baseUrl;
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/** @var TwitterUser */
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protected $twitterUser;
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public function __construct(L10n $l10n, Arguments $args, LoggerInterface $logger, BaseURL $baseUrl, TwitterUser $twitterUser)
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{
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$this->l10n = $l10n;
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$this->args = $args;
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$this->logger = $logger;
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$this->baseUrl = $baseUrl;
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$this->twitterUser = $twitterUser;
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}
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/**
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* Creates the XML from a JSON style array
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*
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* @param array $data JSON style array
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* @param string $root_element Name of the root element
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*
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* @return string The XML data
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*/
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public function createXML(array $data, string $root_element): string
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{
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$childname = key($data);
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$data2 = array_pop($data);
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$namespaces = [
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'' => 'http://api.twitter.com',
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'statusnet' => 'http://status.net/schema/api/1/',
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'friendica' => 'http://friendi.ca/schema/api/1/',
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'georss' => 'http://www.georss.org/georss'
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];
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/// @todo Auto detection of needed namespaces
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if (in_array($root_element, ['ok', 'hash', 'config', 'version', 'ids', 'notes', 'photos'])) {
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$namespaces = [];
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}
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if (is_array($data2)) {
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$key = key($data2);
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Arrays::walkRecursive($data2, ['Friendica\Module\Api\ApiResponse', 'reformatXML']);
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if ($key == '0') {
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$data4 = [];
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$i = 1;
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foreach ($data2 as $item) {
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$data4[$i++ . ':' . $childname] = $item;
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}
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$data2 = $data4;
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}
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}
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$data3 = [$root_element => $data2];
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return XML::fromArray($data3, $dummy, false, $namespaces);
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}
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/**
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* Set values for RSS template
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*
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* @param array $arr Array to be passed to template
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* @param int $cid Contact ID of template
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*
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* @return array
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*/
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private function addRSSValues(array $arr, int $cid): array
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{
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if (empty($cid)) {
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return $arr;
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}
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$user_info = $this->twitterUser->createFromContactId($cid)->toArray();
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$arr['$user'] = $user_info;
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$arr['$rss'] = [
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'alternate' => $user_info['url'],
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'self' => $this->baseUrl . '/' . $this->args->getQueryString(),
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'base' => $this->baseUrl,
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'updated' => DateTimeFormat::utcNow(DateTimeFormat::API),
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'atom_updated' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
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'language' => $user_info['lang'],
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'logo' => $this->baseUrl . '/images/friendica-32.png',
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];
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return $arr;
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}
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/**
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* Formats the data according to the data type
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*
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* @param string $root_element Name of the root element
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* @param string $type Return type (atom, rss, xml, json)
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* @param array $data JSON style array
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* @param int $cid ID of the contact for RSS
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*
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* @return array|string (string|array) XML data or JSON data
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*/
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public function formatData(string $root_element, string $type, array $data, int $cid = 0)
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{
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switch ($type) {
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case 'rss':
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$data = $this->addRSSValues($data, $cid);
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case 'atom':
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case 'xml':
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return $this->createXML($data, $root_element);
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case 'json':
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default:
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return $data;
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}
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}
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/**
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* Callback function to transform the array in an array that can be transformed in a XML file
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*
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* @param mixed $item Array item value
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* @param string $key Array key
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*
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* @return boolean
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*/
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public static function reformatXML(&$item, string &$key): bool
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{
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if (is_bool($item)) {
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$item = ($item ? 'true' : 'false');
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}
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if (substr($key, 0, 10) == 'statusnet_') {
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$key = 'statusnet:' . substr($key, 10);
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} elseif (substr($key, 0, 10) == 'friendica_') {
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$key = 'friendica:' . substr($key, 10);
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}
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return true;
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}
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/**
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* Exit with error code
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*
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* @param int $code
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* @param string $description
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* @param string $message
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* @param string|null $format
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*
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* @return void
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*/
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public function error(int $code, string $description, string $message, string $format = null)
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{
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$error = [
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'error' => $message ?: $description,
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'code' => $code . ' ' . $description,
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'request' => $this->args->getQueryString()
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];
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$this->setHeader(($_SERVER['SERVER_PROTOCOL'] ?? 'HTTP/1.1') . ' ' . $code . ' ' . $description);
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$this->exit('status', ['status' => $error], $format);
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}
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/**
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* Outputs formatted data according to the data type and then exits the execution.
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*
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* @param string $root_element
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* @param array $data An array with a single element containing the returned result
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* @param string|null $format Output format (xml, json, rss, atom)
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*
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* @return void
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*/
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public function exit(string $root_element, array $data, string $format = null, int $cid = 0)
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{
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$format = $format ?? 'json';
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$return = $this->formatData($root_element, $format, $data, $cid);
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switch ($format) {
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case 'xml':
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$this->setType(static::TYPE_XML);
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break;
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case 'json':
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$this->setType(static::TYPE_JSON);
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if (!empty($return)) {
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$json = json_encode(end($return));
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if (!empty($_GET['callback'])) {
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$json = $_GET['callback'] . '(' . $json . ')';
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}
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$return = $json;
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}
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break;
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case 'rss':
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$this->setType(static::TYPE_RSS);
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break;
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case 'atom':
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$this->setType(static::TYPE_ATOM);
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break;
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}
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$this->addContent($return);
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}
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/**
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* Wrapper around exit() for JSON only responses
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*
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* @param array $data
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*
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* @return void
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*/
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public function exitWithJson(array $data)
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{
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$this->exit('content', ['content' => $data], static::TYPE_JSON);
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}
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/**
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* Quit execution with the message that the endpoint isn't implemented
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*
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* @param string $method
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* @param array $request (optional) The request content of the current call for later analysis
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*
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* @return void
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* @throws \Exception
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*/
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public function unsupported(string $method = 'all', array $request = [])
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{
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$path = $this->args->getQueryString();
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$this->logger->info('Unimplemented API call',
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[
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'method' => $method,
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'path' => $path,
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'agent' => $_SERVER['HTTP_USER_AGENT'] ?? '',
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'request' => $request,
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]);
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$error = $this->l10n->t('API endpoint %s %s is not implemented but might be in the future.', strtoupper($method), $path);
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$this->error(501, 'Not Implemented', $error);
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}
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}
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