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<?php
/**
* Bitrix vars
* @global CUser $USER
* @global CMain $APPLICATION
* @global CDatabase $DB
* @global CUserTypeManager $USER_FIELD_MANAGER
* @global CCacheManager $CACHE_MANAGER
*/
use Bitrix\Bitrix24\Feature;
use Bitrix\Main\ArgumentNullException;
use Bitrix\Rest\RestException;
use Bitrix\Rest\AccessException;
use Bitrix\Main\Loader;
use Bitrix\Main\Web\Json;
use Bitrix\Main\Text\Encoding;
use Bitrix\Socialservices\Bitrix24Signer;
class CRestServer
{
const STATUS_OK = "200 OK";
const STATUS_CREATED = "201 Created";
const STATUS_WRONG_REQUEST = "400 Bad Request";
const STATUS_UNAUTHORIZED = "401 Unauthorized";
const STATUS_PAYMENT_REQUIRED = "402 Payment Required"; // reserved for future use
const STATUS_FORBIDDEN = "403 Forbidden";
const STATUS_NOT_FOUND = "404 Not Found";
const STATUS_INTERNAL = "500 Internal Server Error";
/* @var \CRestServer */
protected static $instance = null;
protected $class = '';
protected $method = '';
protected $transport = '';
protected $scope = '';
protected $query = array();
protected $timeStart = 0;
protected $timeProcessStart = 0;
protected $timeProcessFinish = 0;
protected $usage = null;
protected $auth = array();
protected $authData = array();
protected $authScope = null;
protected $clientId = '';
protected $passwordId = '';
/* @var RestException */
protected $error = '';
protected $resultStatus = null;
protected $securityMethodState = null;
protected $securityClientState = null;
protected $arServiceDesc = array();
protected $tokenCheck = false;
protected $authType = null;
public function __construct($params, $toLowerMethod = true)
{
$this->class = $params['CLASS'];
$this->method = $toLowerMethod ? ToLower($params['METHOD']) : $params['METHOD'];
$this->query = $params['QUERY'];
$this->transport = $params['TRANSPORT'];
$this->securityClientState = $params['STATE'];
if(!$this->transport)
{
$this->transport = 'json';
}
if(self::$instance === null)
{
self::$instance = $this;
}
}
/**
* @return \CRestServer|null
*/
public static function instance()
{
return self::$instance;
}
public static function transportSupported($transport)
{
return $transport == 'xml' || $transport == 'json';
}
public function process()
{
global $APPLICATION;
$this->timeStart = microtime(true);
if(!defined('BX24_REST_SKIP_SEND_HEADERS'))
{
\CRestUtil::sendHeaders();
}
try
{
if($this->init())
{
$handler = new $this->class();
/* @var IRestService $handler */
$this->arServiceDesc = $handler->getDescription();
$this->tokenCheck = $this->isTokenCheck();
if($this->checkScope())
{
$APPLICATION->RestartBuffer();
if($this->checkAuth())
{
\Bitrix\Rest\UsageStatTable::log($this);
if($this->tokenCheck)
{
return $this->processTokenCheckCall();
}
else
{
return $this->processCall();
}
}
else
{
throw new AccessException();
}
}
else
{
throw new RestException('Method not found!', RestException::ERROR_METHOD_NOT_FOUND, self::STATUS_NOT_FOUND);
}
}
}
catch(Exception $e)
{
$this->error = $e;
if(!is_a($this->error, "\\Bitrix\\Rest\\RestException"))
{
$this->error = RestException::initFromException($this->error);
}
$ex = $APPLICATION->GetException();
if($ex)
{
$this->error->setApplicationException($ex);
}
}
if($this->error)
{
return $this->outputError();
}
return null;
}
protected function isTokenCheck()
{
$methodDescription = $this->getMethodDescription();
if(!$methodDescription)
{
throw new RestException('Method not found!', RestException::ERROR_METHOD_NOT_FOUND, self::STATUS_NOT_FOUND);
}
return in_array($this->method, array(
\CRestUtil::METHOD_DOWNLOAD,
\CRestUtil::METHOD_UPLOAD,
)) || isset($this->query['token']);
}
protected function processTokenCheckCall()
{
$token = $this->query["token"];
list($this->scope, $queryString, $querySignature) = explode(\CRestUtil::TOKEN_DELIMITER, $token);
$signature = $this->getTokenCheckSignature($this->method, $queryString);
if($signature === $querySignature)
{
$queryString = base64_decode($queryString);
$query = array();
parse_str($queryString, $query);
unset($query["_"]);
$callback = $this->getMethodCallback();
if(!$callback)
{
throw new RestException('Method not found!', RestException::ERROR_METHOD_NOT_FOUND, self::STATUS_NOT_FOUND);
}
$result = call_user_func_array($callback, array($query, $this->scope, $this));
return array("result" => $result);
}
else
{
throw new AccessException("Link check failed");
}
}
protected function processCall()
{
$start = 0;
if(isset($this->query['start']))
{
$start = intval($this->query['start']);
unset($this->query['start']);
}
$callback = $this->getMethodCallback();
if(!$callback)
{
throw new RestException('Method not found!', RestException::ERROR_METHOD_NOT_FOUND, self::STATUS_NOT_FOUND);
}
$this->timeProcessStart = microtime(true);
if(\Bitrix\Main\ModuleManager::isModuleInstalled('bitrix24') && function_exists('getrusage'))
{
$this->usage = getrusage();
}
$result = call_user_func_array($callback, array($this->query, $start, $this));
$this->timeProcessFinish = microtime(true);
if (!empty($result['error']) && !empty($result['error_description']))
{
return $result;
}
$result = array("result" => $result);
if(is_array($result['result']))
{
if(isset($result['result']['next']))
{
$result["next"] = intval($result['result']['next']);
unset($result['result']['next']);
}
//Using array_key_exists instead isset for process NULL values
if(array_key_exists('total', $result['result']))
{
$result['total'] = intval($result['result']['total']);
unset($result['result']['total']);
}
}
if($this->securityClientState != null && $this->securityMethodState != null)
{
$result['signature'] = $this->getApplicationSignature();
}
$result = $this->appendDebugInfo($result);
return $result;
}
public function getTransport()
{
return $this->transport;
}
public function getAuth()
{
return $this->auth;
}
public function getAuthData()
{
return $this->authData;
}
public function getAuthScope()
{
if($this->authScope == null)
{
$this->authScope = array();
$authData = $this->getAuthData();
$scopeList = explode(',', $authData['scope']);
$serviceDescription = $this->getServiceDescription();
$this->authScope = array();
foreach($scopeList as $scope)
{
if(array_key_exists($scope, $serviceDescription))
{
$this->authScope[] = $scope;
}
}
}
return $this->authScope;
}
public function getQuery()
{
return $this->query;
}
public function getAuthType()
{
return $this->authType;
}
/**
* @deprecated
*
* use \CRestServer::getClientId()
**/
public function getAppId()
{
return $this->getClientId();
}
public function getClientId()
{
return $this->clientId;
}
public function getPasswordId()
{
return $this->passwordId;
}
public function getMethod()
{
return $this->method;
}
public function setStatus($status)
{
$this->resultStatus = $status;
}
public function setSecurityState($state = null)
{
$this->securityMethodState = $state;
}
public function getScope()
{
return $this->scope;
}
public function getScopeList()
{
return array_keys($this->arServiceDesc);
}
public function getServiceDescription()
{
return $this->arServiceDesc;
}
public function getTokenCheckSignature($method, $queryString)
{
if(!\Bitrix\Rest\OAuthService::getEngine()->isRegistered())
{
try
{
\Bitrix\Rest\OAuthService::register();
\Bitrix\Rest\OAuthService::getEngine()->getClient()->getApplicationList();
}
catch(\Bitrix\Main\SystemException $e)
{
}
}
$key = \Bitrix\Rest\OAuthService::getEngine()->getClientSecret();
$signatureState = ToLower($method)
.\CRestUtil::TOKEN_DELIMITER.($this->scope === \CRestUtil::GLOBAL_SCOPE ? '' : $this->scope)
.\CRestUtil::TOKEN_DELIMITER.$queryString
.\CRestUtil::TOKEN_DELIMITER.implode(\CRestUtil::TOKEN_DELIMITER, $this->auth);
return $this->makeSignature($key, $signatureState);
}
public function getApplicationSignature()
{
$signature = '';
$arRes = \Bitrix\Rest\AppTable::getByClientId($this->clientId);
if(is_array($arRes) && $arRes['SHARED_KEY'] <> '')
{
$methodState = is_array($this->securityMethodState)
? $this->securityMethodState
: array('data' => $this->securityMethodState);
$methodState['state'] = $this->securityClientState;
$signature = $this->makeSignature($arRes['SHARED_KEY'], $methodState);
}
return $signature;
}
public function requestConfirmation($userList, $message)
{
if($message == '')
{
throw new ArgumentNullException('message');
}
if(!is_array($userList) && intval($userList) > 0)
{
$userList = array($userList);
}
if(count($userList) <= 0)
{
throw new ArgumentNullException('userList');
}
if(!$this->getClientId())
{
throw new AccessException('Application context required');
}
if(
!isset($this->authData['parameters'])
|| !isset($this->authData['parameters']['notify_allow'])
|| !array_key_exists($this->method, $this->authData['parameters']['notify_allow'])
)
{
$notify = new \Bitrix\Rest\Notify(\Bitrix\Rest\Notify::NOTIFY_BOT, $userList);
$notify->send($this->getClientId(), $this->authData['access_token'], $this->method, $message);
$this->authData['parameters']['notify_allow'][$this->method] = 0;
if($this->authData['parameters_callback'] && is_callable($this->authData['parameters_callback']))
{
call_user_func_array($this->authData['parameters_callback'], array($this->authData));
}
}
if($this->authData['parameters']['notify_allow'][$this->method] === 0)
{
throw new RestException('Waiting for confirmation', 'METHOD_CONFIRM_WAITING', static::STATUS_UNAUTHORIZED);
}
elseif($this->authData['parameters']['notify_allow'][$this->method] < 0)
{
throw new RestException('Method call denied', 'METHOD_CONFIRM_DENIED', static::STATUS_FORBIDDEN);
}
return true;
}
private function init()
{
if(!in_array($this->transport, array('json', 'xml')))
{
throw new RestException('Wrong transport!', RestException::ERROR_INTERNAL_WRONG_TRANSPORT, self::STATUS_INTERNAL);
}
elseif(!$this->checkSite())
{
throw new RestException('Portal was deleted', RestException::ERROR_INTERNAL_PORTAL_DELETED, self::STATUS_FORBIDDEN);
}
elseif(!class_exists($this->class) || !method_exists($this->class, 'getDescription'))
{
throw new RestException('Wrong handler class!', RestException::ERROR_INTERNAL_WRONG_HANDLER_CLASS, self::STATUS_INTERNAL);
}
else
{
if(array_key_exists("state", $this->query))
{
$this->securityClientState = $this->query["state"];
unset($this->query["state"]);
}
}
return true;
}
private function checkSite()
{
return \Bitrix\Main\Config\Option::get("main", "site_stopped", "N") !== 'Y';
}
private function getMethodDescription()
{
if(!$this->scope)
{
foreach($this->arServiceDesc as $scope => $arMethods)
{
if(array_key_exists($this->method, $arMethods))
{
$this->scope = $scope;
break;
}
}
}
if(!isset($this->arServiceDesc[$this->scope]) || !isset($this->arServiceDesc[$this->scope][$this->method]))
{
foreach(GetModuleEvents('rest', 'onFindMethodDescription', true) as $event)
{
$result = ExecuteModuleEventEx($event, array($this->method, $this->scope));
if(is_array($result))
{
if(!is_array($this->arServiceDesc[$result['scope']]))
{
$this->arServiceDesc[$result['scope']] = array();
}
$this->scope = $result['scope'];
$this->arServiceDesc[$this->scope][$this->method] = $result;
return $result;
}
}
}
return $this->arServiceDesc[$this->scope][$this->method];
}
private function getMethodCallback()
{
$methodDescription = $this->getMethodDescription();
if($methodDescription)
{
$callback = isset($methodDescription['callback'])
? $methodDescription['callback']
: $methodDescription;
// hack to prevent callback structure doubling in case of strange doubling of event handlers
if(!is_callable($callback) && is_array($callback) && count($callback) > 2)
{
$callback = array($callback[0], $callback[1]);
}
if(is_callable($callback))
{
return $callback;
}
}
return false;
}
private function checkScope()
{
if($this->tokenCheck)
{
if(isset($this->query["token"]) && $this->query["token"] <> '')
{
list($scope) = explode(\CRestUtil::TOKEN_DELIMITER, $this->query["token"], 2);
$this->scope = $scope == "" ? \CRestUtil::GLOBAL_SCOPE : $scope;
}
}
$callback = $this->getMethodCallback();
if($callback)
{
return true;
}
return false;
}
protected function checkAuth()
{
$res = array();
if(\CRestUtil::checkAuth($this->query, $this->scope, $res))
{
$this->authType = $res['auth_type'];
$this->clientId = isset($res['client_id']) ? $res['client_id'] : null;
$this->passwordId = isset($res['password_id']) ? $res['password_id'] : null;
$this->authData = $res;
if(
$this->authData['auth_connector']
&& !$this->canUseConnectors()
)
{
throw new \Bitrix\Rest\LicenseException('auth_connector');
}
if(isset($res['parameters_clear']) && is_array($res['parameters_clear']))
{
foreach($res['parameters_clear'] as $param)
{
if(array_key_exists($param, $this->query))
{
$this->auth[$param] = $this->query[$param];
unset($this->query[$param]);
}
}
}
$arAdditionalParams = $res['parameters'];
if(isset($arAdditionalParams[\Bitrix\Rest\Event\Session::PARAM_SESSION]))
{
\Bitrix\Rest\Event\Session::set($arAdditionalParams[\Bitrix\Rest\Event\Session::PARAM_SESSION]);
}
return true;
}
else
{
throw new \Bitrix\Rest\OAuthException($res);
}
}
protected function canUseConnectors()
{
return !Loader::includeModule('bitrix24')
|| Feature::isFeatureEnabled('rest_auth_connector');
}
protected function getMethodOptions()
{
$methodDescription = $this->getMethodDescription();
return is_array($methodDescription['options'])
? $methodDescription['options']
: array();
}
private function makeSignature($key, $state)
{
$signature = '';
if(Loader::includeModule('socialservices'))
{
$signer = new Bitrix24Signer();
$signer->setKey($key);
$signature = $signer->sign($state);
}
return $signature;
}
/*************************************************************/
private function outputError()
{
$res = array_merge(array(
'error' => $this->error->getErrorCode(),
'error_description' => $this->error->getMessage(),
), $this->error->getAdditional());
return $res;
}
public function sendHeaders()
{
if($this->error)
{
\CHTTP::setStatus($this->error->getStatus());
}
elseif($this->resultStatus)
{
\CHTTP::setStatus($this->resultStatus);
}
switch($this->transport)
{
case 'json':
Header('Content-Type: application/json; charset=utf-8');
break;
case 'xml':
Header('Content-Type: text/xml; charset=utf-8');
break;
}
$this->sendHeadersAdditional();
}
public function sendHeadersAdditional()
{
if(\Bitrix\Main\ModuleManager::isModuleInstalled('bitrix24'))
{
if($this->clientId)
{
Header('X-Bitrix-Rest-Application: '.$this->clientId);
}
Header('X-Bitrix-Rest-Time: '.number_format($this->timeProcessFinish - $this->timeProcessStart, 10, '.', ''));
if(function_exists('getrusage'))
{
$usage = getrusage();
Header('X-Bitrix-Rest-User-Time: '.number_format($usage['ru_utime.tv_sec'] - $this->usage['ru_utime.tv_sec'] + ($usage['ru_utime.tv_usec'] - $this->usage['ru_utime.tv_usec']) / 1000000, 10, '.', ''));
Header('X-Bitrix-Rest-System-Time: '.number_format($usage['ru_stime.tv_sec'] - $this->usage['ru_stime.tv_sec'] + ($usage['ru_stime.tv_usec'] - $this->usage['ru_stime.tv_usec']) / 1000000, 10, '.', ''));
}
}
}
public function output($data)
{
\Bitrix\Rest\LogTable::log($this, $data);
\Bitrix\Rest\UsageStatTable::finalize();
if (is_object($data['result']) && $data['result'] instanceof \Bitrix\Main\Engine\Response\BFile)
{
return $data['result'];
}
switch($this->transport)
{
case 'json':
return $this->outputJson($data);
break;
case 'xml':
$data = Encoding::convertEncoding($data, LANG_CHARSET, 'utf-8');
return $this->outputXml(array('response' => $data));
break;
}
return null;
}
protected function appendDebugInfo(array $data)
{
$data['time'] = array(
'start' => $this->timeStart,
'finish' => microtime(true),
);
$data['time']['duration'] = $data['time']['finish'] - $data['time']['start'];
$data['time']['processing'] = $this->timeProcessFinish - $this->timeProcessStart;
$data['time']['date_start'] = date('c', $data['time']['start']);
$data['time']['date_finish'] = date('c', $data['time']['finish']);
return $data;
}
private function outputJson($data)
{
try
{
$res = Json::encode($data);
}
catch(\Bitrix\Main\ArgumentException $e)
{
$res = '{"error":"WRONG_ENCODING","error_description":"Wrong request encoding"}';
}
return $res;
}
private function outputXml($data)
{
$res = "";
foreach($data as $key => $value)
{
if($key === intval($key))
$key = 'item';
$res .= '<'.$key.'>';
if(is_array($value))
$res .= $this->outputXml($value);
else
$res .= \CDataXML::xmlspecialchars($value);
$res .= '</'.$key.'>';
}
return $res;
}
}
class CRestServerBatchItem extends \CRestServer
{
protected $authKeys = array();
public function setApplicationId($appId)
{
$this->clientId = $appId;
}
public function setAuthKeys($keys)
{
$this->authKeys = $keys;
}
public function setAuthData($authData)
{
$this->authData = $authData;
}
public function setAuthType($authType)
{
$this->authType = $authType;
}
protected function checkAuth()
{
foreach($this->authKeys as $param)
{
if(array_key_exists($param, $this->query))
{
$this->auth[$param] = $this->query[$param];
unset($this->query[$param]);
}
}
if($this->scope !== \CRestUtil::GLOBAL_SCOPE)
{
$allowedScope = explode(',', $this->authData['scope']);
$allowedScope = \Bitrix\Rest\Engine\RestManager::fillAlternativeScope($this->scope, $allowedScope);
if(!in_array($this->scope, $allowedScope))
{
throw new \Bitrix\Rest\OAuthException(array('error' => 'insufficient_scope'));
}
}
return true;
}
}
class IRestService
{
const LIST_LIMIT = 50;
protected static function getNavData($start, $bORM = false)
{
if($start >= 0)
{
return ($bORM
? array(
'limit' => static::LIST_LIMIT,
'offset' => intval($start)
)
: array(
'nPageSize' => static::LIST_LIMIT,
'iNumPage' => intval($start / static::LIST_LIMIT) + 1
)
);
}
else
{
return ($bORM
? array(
'limit' => static::LIST_LIMIT,
)
: array(
'nTopCount' => static::LIST_LIMIT,
)
);
}
}
protected static function setNavData($result, $dbRes)
{
if (is_array($dbRes))
{
if($dbRes["offset"] + count($result) < $dbRes["count"])
{
$result['next'] = $dbRes["offset"] + count($result);
}
$result['total'] = $dbRes["count"];
}
else
{
$result['total'] = $dbRes->NavRecordCount;
if($dbRes->NavPageNomer < $dbRes->NavPageCount)
{
$result['next'] = $dbRes->NavPageNomer * $dbRes->NavPageSize;
}
}
return $result;
}
public function getDescription()
{
$arMethods = get_class_methods($this);
$arResult = array();
foreach ($arMethods as $name)
{
if($name != 'getDescription')
{
$arResult[$name] = array($this, $name);
}
}
return $arResult;
}
protected static function sanitizeFilter($filter, array $availableFields = null, $valueCallback = null, array $availableOperations = null)
{
static $defaultOperations = array('', '=', '>', '<', '>=', '<=', '@', '%');
if($availableOperations === null)
{
$availableOperations = $defaultOperations;
}
if(!is_array($filter))
{
throw new RestException('The filter is not an array.', RestException::ERROR_ARGUMENT, \CRestServer::STATUS_WRONG_REQUEST);
}
$filter = array_change_key_case($filter, CASE_UPPER);
$resultFilter = array();
foreach($filter as $key => $value)
{
if(preg_match('/^([^a-zA-Z]*)(.*)/', $key, $matches))
{
$operation = $matches[1];
$field = $matches[2];
if(!in_array($operation, $availableOperations))
{
throw new RestException('Filter operation not allowed: '.$operation, RestException::ERROR_ARGUMENT, \CRestServer::STATUS_WRONG_REQUEST);
}
if($availableFields !== null && !in_array($field, $availableFields))
{
throw new RestException('Filter field not allowed: '.$field, RestException::ERROR_ARGUMENT, \CRestServer::STATUS_WRONG_REQUEST);
}
if(is_callable($valueCallback))
{
$value = call_user_func_array($valueCallback, array($field, $value, $operation));
}
$resultFilter[$operation.$field] = $value;
}
}
return $resultFilter;
}
protected static function sanitizeOrder($order, array $availableFields = null)
{
if(!is_array($order))
{
throw new RestException('The order is not an array.', RestException::ERROR_ARGUMENT, \CRestServer::STATUS_WRONG_REQUEST);
}
$order = array_change_key_case($order, CASE_UPPER);
foreach($order as $key => $value)
{
if(!is_numeric($key))
{
if($availableFields !== null && !in_array($key, $availableFields))
{
throw new RestException('Order field not allowed: '.$key, RestException::ERROR_ARGUMENT, \CRestServer::STATUS_WRONG_REQUEST);
}
if(!in_array(ToUpper($value), array('ASC', 'DESC')))
{
throw new RestException('Order direction should be one of {ASC|DESC}', RestException::ERROR_ARGUMENT, \CRestServer::STATUS_WRONG_REQUEST);
}
}
elseif($availableFields !== null && !in_array($value, $availableFields))
{
throw new RestException('Order field not allowed: '.$value, RestException::ERROR_ARGUMENT, \CRestServer::STATUS_WRONG_REQUEST);
}
}
return $order;
}
}