3 * @copyright Copyright (C) 2010-2021, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Module;
25 use Friendica\BaseModule;
26 use Friendica\Core\L10n;
27 use Friendica\Core\Logger;
28 use Friendica\Core\System;
30 use Friendica\Model\Contact;
31 use Friendica\Model\Post;
32 use Friendica\Model\User;
33 use Friendica\Module\Api\ApiResponse;
34 use Friendica\Network\HTTPException;
35 use Friendica\Security\BasicAuth;
36 use Friendica\Security\OAuth;
37 use Friendica\Util\DateTimeFormat;
38 use Friendica\Util\HTTPInputData;
39 use Friendica\Util\Profiler;
40 use Psr\Log\LoggerInterface;
42 class BaseApi extends BaseModule
44 const LOG_PREFIX = 'API {action} - ';
46 const SCOPE_READ = 'read';
47 const SCOPE_WRITE = 'write';
48 const SCOPE_FOLLOW = 'follow';
49 const SCOPE_PUSH = 'push';
54 protected static $boundaries = [];
59 protected static $request = [];
64 /** @var ApiResponse */
67 public function __construct(App $app, L10n $l10n, App\BaseURL $baseUrl, App\Arguments $args, LoggerInterface $logger, Profiler $profiler, ApiResponse $response, array $server, array $parameters = [])
69 parent::__construct($l10n, $baseUrl, $args, $logger, $profiler, $response, $server, $parameters);
74 protected function delete()
76 self::checkAllowedScope(self::SCOPE_WRITE);
78 if (!$this->app->isLoggedIn()) {
79 throw new HTTPException\ForbiddenException($this->t('Permission denied.'));
83 protected function patch()
85 self::checkAllowedScope(self::SCOPE_WRITE);
87 if (!$this->app->isLoggedIn()) {
88 throw new HTTPException\ForbiddenException($this->t('Permission denied.'));
92 protected function post(array $request = [], array $post = [])
94 self::checkAllowedScope(self::SCOPE_WRITE);
96 if (!$this->app->isLoggedIn()) {
97 throw new HTTPException\ForbiddenException($this->t('Permission denied.'));
101 public function put()
103 self::checkAllowedScope(self::SCOPE_WRITE);
105 if (!$this->app->isLoggedIn()) {
106 throw new HTTPException\ForbiddenException($this->t('Permission denied.'));
111 * Processes data from GET requests and sets defaults
113 * @param array $defaults Associative array of expected request keys and their default typed value. A null
114 * value will remove the request key from the resulting value array.
115 * @param array|null $request Custom REQUEST array, superglobal instead
116 * @return array request data
119 public function getRequest(array $defaults, array $request = null): array
121 $httpinput = HTTPInputData::process();
122 $input = array_merge($httpinput['variables'], $httpinput['files'], $request ?? $_REQUEST);
124 self::$request = $input;
125 self::$boundaries = [];
127 unset(self::$request['pagename']);
129 return $this->checkDefaults($defaults, $input);
133 * Set boundaries for the "link" header
134 * @param array $boundaries
137 protected static function setBoundaries(int $id)
139 if (!isset(self::$boundaries['min'])) {
140 self::$boundaries['min'] = $id;
143 if (!isset(self::$boundaries['max'])) {
144 self::$boundaries['max'] = $id;
147 self::$boundaries['min'] = min(self::$boundaries['min'], $id);
148 self::$boundaries['max'] = max(self::$boundaries['max'], $id);
152 * Set the "link" header with "next" and "prev" links
155 protected static function setLinkHeader()
157 if (empty(self::$boundaries)) {
161 $request = self::$request;
163 unset($request['min_id']);
164 unset($request['max_id']);
165 unset($request['since_id']);
167 $prev_request = $next_request = $request;
169 $prev_request['min_id'] = self::$boundaries['max'];
170 $next_request['max_id'] = self::$boundaries['min'];
172 $command = DI::baseUrl() . '/' . DI::args()->getCommand();
174 $prev = $command . '?' . http_build_query($prev_request);
175 $next = $command . '?' . http_build_query($next_request);
177 header('Link: <' . $next . '>; rel="next", <' . $prev . '>; rel="prev"');
181 * Get current application token
183 * @return array token
185 public static function getCurrentApplication()
187 $token = OAuth::getCurrentApplicationToken();
190 $token = BasicAuth::getCurrentApplicationToken();
197 * Get current user id, returns 0 if not logged in
199 * @return int User ID
201 public static function getCurrentUserID()
203 $uid = OAuth::getCurrentUserID();
206 $uid = BasicAuth::getCurrentUserID(false);
213 * Check if the provided scope does exist.
214 * halts execution on missing scope or when not logged in.
216 * @param string $scope the requested scope (read, write, follow, push)
218 public static function checkAllowedScope(string $scope)
220 $token = self::getCurrentApplication();
223 Logger::notice('Empty application token');
224 DI::mstdnError()->Forbidden();
227 if (!isset($token[$scope])) {
228 Logger::warning('The requested scope does not exist', ['scope' => $scope, 'application' => $token]);
229 DI::mstdnError()->Forbidden();
232 if (empty($token[$scope])) {
233 Logger::warning('The requested scope is not allowed', ['scope' => $scope, 'application' => $token]);
234 DI::mstdnError()->Forbidden();
238 public static function checkThrottleLimit()
240 $uid = self::getCurrentUserID();
242 // Check for throttling (maximum posts per day, week and month)
243 $throttle_day = DI::config()->get('system', 'throttle_limit_day');
244 if ($throttle_day > 0) {
245 $datefrom = date(DateTimeFormat::MYSQL, time() - 24*60*60);
247 $condition = ["`gravity` = ? AND `uid` = ? AND `wall` AND `received` > ?", GRAVITY_PARENT, $uid, $datefrom];
248 $posts_day = Post::countThread($condition);
250 if ($posts_day > $throttle_day) {
251 Logger::info('Daily posting limit reached', ['uid' => $uid, 'posts' => $posts_day, 'limit' => $throttle_day]);
252 $error = DI::l10n()->t('Too Many Requests');
253 $error_description = DI::l10n()->tt("Daily posting limit of %d post reached. The post was rejected.", "Daily posting limit of %d posts reached. The post was rejected.", $throttle_day);
254 $errorobj = new \Friendica\Object\Api\Mastodon\Error($error, $error_description);
255 System::jsonError(429, $errorobj->toArray());
259 $throttle_week = DI::config()->get('system', 'throttle_limit_week');
260 if ($throttle_week > 0) {
261 $datefrom = date(DateTimeFormat::MYSQL, time() - 24*60*60*7);
263 $condition = ["`gravity` = ? AND `uid` = ? AND `wall` AND `received` > ?", GRAVITY_PARENT, $uid, $datefrom];
264 $posts_week = Post::countThread($condition);
266 if ($posts_week > $throttle_week) {
267 Logger::info('Weekly posting limit reached', ['uid' => $uid, 'posts' => $posts_week, 'limit' => $throttle_week]);
268 $error = DI::l10n()->t('Too Many Requests');
269 $error_description = DI::l10n()->tt("Weekly posting limit of %d post reached. The post was rejected.", "Weekly posting limit of %d posts reached. The post was rejected.", $throttle_week);
270 $errorobj = new \Friendica\Object\Api\Mastodon\Error($error, $error_description);
271 System::jsonError(429, $errorobj->toArray());
275 $throttle_month = DI::config()->get('system', 'throttle_limit_month');
276 if ($throttle_month > 0) {
277 $datefrom = date(DateTimeFormat::MYSQL, time() - 24*60*60*30);
279 $condition = ["`gravity` = ? AND `uid` = ? AND `wall` AND `received` > ?", GRAVITY_PARENT, $uid, $datefrom];
280 $posts_month = Post::countThread($condition);
282 if ($posts_month > $throttle_month) {
283 Logger::info('Monthly posting limit reached', ['uid' => $uid, 'posts' => $posts_month, 'limit' => $throttle_month]);
284 $error = DI::l10n()->t('Too Many Requests');
285 $error_description = DI::l10n()->t("Monthly posting limit of %d post reached. The post was rejected.", "Monthly posting limit of %d posts reached. The post was rejected.", $throttle_month);
286 $errorobj = new \Friendica\Object\Api\Mastodon\Error($error, $error_description);
287 System::jsonError(429, $errorobj->toArray());
292 public static function getContactIDForSearchterm(string $screen_name = null, string $profileurl = null, int $cid = null, int $uid)
298 if (!empty($profileurl)) {
299 return Contact::getIdForURL($profileurl);
302 if (empty($cid) && !empty($screen_name)) {
303 if (strpos($screen_name, '@') !== false) {
304 return Contact::getIdForURL($screen_name, 0, false);
307 $user = User::getByNickname($screen_name, ['uid']);
308 if (!empty($user['uid'])) {
309 return Contact::getPublicIdByUserId($user['uid']);
314 return Contact::getPublicIdByUserId($uid);