mirror of https://github.com/friendica/friendica
309 lines
8.8 KiB
PHP
309 lines
8.8 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2010-2021, 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;
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use Friendica\BaseModule;
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use Friendica\Core\Logger;
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use Friendica\Core\System;
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use Friendica\Database\Database;
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use Friendica\Database\DBA;
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use Friendica\DI;
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use Friendica\Network\HTTPException;
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use Friendica\Util\DateTimeFormat;
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require_once __DIR__ . '/../../include/api.php';
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class BaseApi extends BaseModule
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{
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/**
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* @var string json|xml|rss|atom
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*/
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protected static $format = 'json';
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/**
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* @var bool|int
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*/
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protected static $current_user_id;
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public static function init(array $parameters = [])
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{
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$arguments = DI::args();
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if (substr($arguments->getCommand(), -4) === '.xml') {
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self::$format = 'xml';
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}
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if (substr($arguments->getCommand(), -4) === '.rss') {
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self::$format = 'rss';
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}
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if (substr($arguments->getCommand(), -4) === '.atom') {
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self::$format = 'atom';
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}
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}
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public static function delete(array $parameters = [])
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{
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if (!api_user()) {
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throw new HTTPException\UnauthorizedException(DI::l10n()->t('Permission denied.'));
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}
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$a = DI::app();
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if (!empty($a->user['uid']) && $a->user['uid'] != api_user()) {
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throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
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}
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}
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public static function patch(array $parameters = [])
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{
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if (!api_user()) {
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throw new HTTPException\UnauthorizedException(DI::l10n()->t('Permission denied.'));
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}
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$a = DI::app();
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if (!empty($a->user['uid']) && $a->user['uid'] != api_user()) {
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throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
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}
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}
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public static function post(array $parameters = [])
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{
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if (!api_user()) {
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throw new HTTPException\UnauthorizedException(DI::l10n()->t('Permission denied.'));
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}
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$a = DI::app();
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if (!empty($a->user['uid']) && $a->user['uid'] != api_user()) {
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throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
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}
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}
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public static function put(array $parameters = [])
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{
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if (!api_user()) {
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throw new HTTPException\UnauthorizedException(DI::l10n()->t('Permission denied.'));
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}
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$a = DI::app();
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if (!empty($a->user['uid']) && $a->user['uid'] != api_user()) {
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throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
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}
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}
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public static function unsupported(string $method = 'all')
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{
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$path = DI::args()->getQueryString();
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Logger::info('Unimplemented API call', ['method' => $method, 'path' => $path, 'agent' => $_SERVER['HTTP_USER_AGENT'] ?? '', 'request' => $_REQUEST ?? []]);
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$error = DI::l10n()->t('API endpoint %s %s is not implemented', strtoupper($method), $path);
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$error_description = DI::l10n()->t('The API endpoint is currently not implemented but might be in the future.');;
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$errorobj = new \Friendica\Object\Api\Mastodon\Error($error, $error_description);
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System::jsonError(501, $errorobj->toArray());
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}
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/**
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* Log in user via OAuth1 or Simple HTTP Auth.
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*
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* Simple Auth allow username in form of <pre>user@server</pre>, ignoring server part
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*
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* @return bool Was a user authenticated?
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* @throws HTTPException\ForbiddenException
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* @throws HTTPException\UnauthorizedException
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* @throws HTTPException\InternalServerErrorException
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* @hook 'authenticate'
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* array $addon_auth
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* 'username' => username from login form
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* 'password' => password from login form
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* 'authenticated' => return status,
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* 'user_record' => return authenticated user record
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*/
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protected static function login()
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{
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if (empty(self::$current_user_id)) {
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self::$current_user_id = self::getUserByBearer();
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}
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if (empty(self::$current_user_id)) {
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api_login(DI::app());
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}
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self::$current_user_id = api_user();
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return (bool)self::$current_user_id;
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}
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/**
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* Get current user id, returns 0 if not logged in
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*
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* @return int User ID
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*/
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protected static function getCurrentUserID()
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{
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if (empty(self::$current_user_id)) {
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self::$current_user_id = self::getUserByBearer();
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}
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if (empty(self::$current_user_id)) {
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api_login(DI::app(), false);
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self::$current_user_id = api_user();
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}
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return (int)self::$current_user_id;
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}
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private static function getUserByBearer()
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{
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$authorization = $_SERVER['HTTP_AUTHORIZATION'] ?? '';
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$authorization = $_SERVER['AUTHORIZATION'] ?? $authorization;
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if (substr($authorization, 0, 7) != 'Bearer ') {
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return 0;
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}
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$bearer = trim(substr($authorization, 7));
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$condition = ['access_token' => $bearer];
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$token = DBA::selectFirst('application-token', ['uid'], $condition);
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if (!DBA::isResult($token)) {
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Logger::warning('Token not found', $condition);
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return 0;
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}
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Logger::info('Token found', $token);
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return $token['uid'];
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}
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public static function getApplication()
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{
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$redirect_uri = !isset($_REQUEST['redirect_uri']) ? '' : $_REQUEST['redirect_uri'];
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$client_id = !isset($_REQUEST['client_id']) ? '' : $_REQUEST['client_id'];
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$client_secret = !isset($_REQUEST['client_secret']) ? '' : $_REQUEST['client_secret'];
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if ((empty($redirect_uri) && empty($client_secret)) || empty($client_id)) {
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Logger::warning('Incomplete request', ['request' => $_REQUEST]);
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return [];
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}
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$condition = ['client_id' => $client_id];
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if (!empty($client_secret)) {
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$condition['client_secret'] = $client_secret;
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}
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if (!empty($redirect_uri)) {
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$condition['redirect_uri'] = $redirect_uri;
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}
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$application = DBA::selectFirst('application', [], $condition);
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if (!DBA::isResult($application)) {
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Logger::warning('Application not found', $condition);
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return [];
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}
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return $application;
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}
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public static function existsTokenForUser(array $application, int $uid)
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{
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return DBA::exists('application-token', ['application-id' => $application['id'], 'uid' => $uid]);
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}
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public static function getTokenForUser(array $application, int $uid)
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{
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return DBA::selectFirst('application-token', [], ['application-id' => $application['id'], 'uid' => $uid]);
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}
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public static function createTokenForUser(array $application, int $uid)
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{
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$code = bin2hex(random_bytes(32));
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$access_token = bin2hex(random_bytes(32));
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$fields = ['application-id' => $application['id'], 'uid' => $uid, 'code' => $code, 'access_token' => $access_token, 'created_at' => DateTimeFormat::utcNow(DateTimeFormat::MYSQL)];
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if (!DBA::insert('application-token', $fields, Database::INSERT_UPDATE)) {
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return [];
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}
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return DBA::selectFirst('application-token', [], ['application-id' => $application['id'], 'uid' => $uid]);
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}
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/**
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* Get user info array.
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*
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* @param int|string $contact_id Contact ID or URL
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* @return array|bool
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* @throws HTTPException\BadRequestException
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* @throws HTTPException\InternalServerErrorException
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* @throws HTTPException\UnauthorizedException
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* @throws \ImagickException
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*/
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protected static function getUser($contact_id = null)
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{
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return api_get_user(DI::app(), $contact_id);
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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
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* @param array $data An array with a single element containing the returned result
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* @return false|string
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*/
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protected static function format(string $root_element, array $data)
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{
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$return = api_format_data($root_element, self::$format, $data);
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switch (self::$format) {
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case "xml":
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header("Content-Type: text/xml");
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break;
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case "json":
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header("Content-Type: application/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 = $json;
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}
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break;
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case "rss":
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header("Content-Type: application/rss+xml");
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$return = '<?xml version="1.0" encoding="UTF-8"?>' . "\n" . $return;
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break;
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case "atom":
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header("Content-Type: application/atom+xml");
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$return = '<?xml version="1.0" encoding="UTF-8"?>' . "\n" . $return;
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break;
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}
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return $return;
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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 $data
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* @param $root_element
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* @return string
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*/
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protected static function createXml($data, $root_element)
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{
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return api_create_xml($data, $root_element);
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}
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}
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