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<?php
namespace MediaWiki\Rest;
use MediaWiki\Config\Config;
use MediaWiki\Config\ServiceOptions;
use MediaWiki\Context\IContextSource;
use MediaWiki\Context\RequestContext;
use MediaWiki\EntryPointEnvironment;
use MediaWiki\Exception\MWExceptionRenderer;
use MediaWiki\MainConfigNames;
use MediaWiki\MediaWikiEntryPoint;
use MediaWiki\MediaWikiServices;
use MediaWiki\Registration\ExtensionRegistry;
use MediaWiki\Rest\BasicAccess\CompoundAuthorizer;
use MediaWiki\Rest\BasicAccess\MWBasicAuthorizer;
use MediaWiki\Rest\Reporter\MWErrorReporter;
use MediaWiki\Rest\Validator\Validator;
use Wikimedia\Message\ITextFormatter;
/**
* @internal
*/
class EntryPoint extends MediaWikiEntryPoint {
private RequestInterface $request;
private ?Router $router = null;
private ?CorsUtils $cors = null;
/**
* @internal Public for use in core tests
*
* @param MediaWikiServices $services
* @param IContextSource $context
* @param RequestInterface $request
* @param ResponseFactory $responseFactory
* @param CorsUtils $cors
*
* @return Router
*/
public static function createRouter(
MediaWikiServices $services,
IContextSource $context,
RequestInterface $request,
ResponseFactory $responseFactory,
CorsUtils $cors
): Router {
$conf = $services->getMainConfig();
$authority = $context->getAuthority();
$authorizer = new CompoundAuthorizer();
$authorizer
->addAuthorizer( new MWBasicAuthorizer( $authority ) )
->addAuthorizer( $cors );
$objectFactory = $services->getObjectFactory();
$restValidator = new Validator( $objectFactory,
$request,
$authority
);
$stats = $services->getStatsFactory();
return ( new Router(
self::getRouteFiles( $conf ),
ExtensionRegistry::getInstance()->getAttribute( 'RestRoutes' ),
new ServiceOptions( Router::CONSTRUCTOR_OPTIONS, $conf ),
$services->getLocalServerObjectCache(),
$responseFactory,
$authorizer,
$authority,
$objectFactory,
$restValidator,
new MWErrorReporter(),
$services->getHookContainer(),
$context->getRequest()->getSession()
) )
->setCors( $cors )
->setStats( $stats );
}
/**
* @internal
* @return RequestInterface The RequestInterface object used by this entry point.
*/
public static function getMainRequest(): RequestInterface {
static $mainRequest = null;
if ( $mainRequest === null ) {
$conf = MediaWikiServices::getInstance()->getMainConfig();
$mainRequest = new RequestFromGlobals( [
'cookiePrefix' => $conf->get( MainConfigNames::CookiePrefix )
] );
}
return $mainRequest;
}
protected function doSetup() {
parent::doSetup();
$context = RequestContext::getMain();
$responseFactory = new ResponseFactory( $this->getTextFormatters() );
$responseFactory->setShowExceptionDetails(
MWExceptionRenderer::shouldShowExceptionDetails()
);
$this->cors = new CorsUtils(
new ServiceOptions(
CorsUtils::CONSTRUCTOR_OPTIONS,
$this->getServiceContainer()->getMainConfig()
),
$responseFactory,
$context->getUser()
);
if ( !$this->router ) {
$this->router = $this->createRouter(
$this->getServiceContainer(),
$context,
$this->request,
$responseFactory,
$this->cors
);
}
}
/**
* Get a TextFormatter array from MediaWikiServices
*
* @return ITextFormatter[]
*/
private function getTextFormatters() {
$services = $this->getServiceContainer();
$code = $services->getContentLanguageCode()->toString();
$langs = array_unique( [ $code, 'en' ] );
$textFormatters = [];
$factory = $services->getMessageFormatterFactory();
foreach ( $langs as $lang ) {
$textFormatters[] = $factory->getTextFormatter( $lang );
}
return $textFormatters;
}
/**
* @param Config $conf
*
* @return string[]
*/
private static function getRouteFiles( $conf ) {
global $IP;
$extensionsDir = $conf->get( MainConfigNames::ExtensionDirectory );
// Always include the "official" routes. Include additional routes if specified.
$routeFiles = array_merge(
[
'includes/Rest/coreRoutes.json',
],
$conf->get( MainConfigNames::RestAPIAdditionalRouteFiles )
);
foreach ( $routeFiles as &$file ) {
if (
str_starts_with( $file, '/' )
) {
// Allow absolute paths on non-Windows
} elseif (
str_starts_with( $file, 'extensions/' )
) {
// Support hacks like Wikibase.ci.php
$file = substr_replace( $file, $extensionsDir,
0, strlen( 'extensions' ) );
} else {
$file = "$IP/$file";
}
}
return $routeFiles;
}
public function __construct(
RequestInterface $request,
RequestContext $context,
EntryPointEnvironment $environment,
MediaWikiServices $mediaWikiServices
) {
parent::__construct( $context, $environment, $mediaWikiServices );
$this->request = $request;
}
/**
* Sets the router to use.
* Intended for testing.
*/
public function setRouter( Router $router ): void {
$this->router = $router;
}
public function execute() {
$this->startOutputBuffer();
// IDEA: Move the call to cors->modifyResponse() into Module,
// so it's in the same class as cors->createPreflightResponse().
$response = $this->cors->modifyResponse(
$this->request,
$this->router->execute( $this->request )
);
$webResponse = $this->getResponse();
$webResponse->header(
'HTTP/' . $response->getProtocolVersion() . ' ' . $response->getStatusCode() . ' ' .
$response->getReasonPhrase()
);
foreach ( $response->getRawHeaderLines() as $line ) {
$webResponse->header( $line );
}
foreach ( $response->getCookies() as $cookie ) {
$webResponse->setCookie(
$cookie['name'],
$cookie['value'],
$cookie['expiry'],
$cookie['options']
);
}
// Clear all errors that might have been displayed if display_errors=On
$this->discardOutputBuffer();
$stream = $response->getBody();
$stream->rewind();
$this->prepareForOutput();
if ( $stream instanceof CopyableStreamInterface ) {
$stream->copyToStream( fopen( 'php://output', 'w' ) );
} else {
while ( true ) {
$buffer = $stream->read( 65536 );
if ( $buffer === '' ) {
break;
}
$this->print( $buffer );
}
}
}
}