public function processRequest()
{
$request = $this->getRequest();
$current_user = $request->getUser();
$server = new PhabricatorOAuthServer();
$client_phid = $request->getStr('client_id');
$scope = $request->getStr('scope');
$redirect_uri = $request->getStr('redirect_uri');
$state = $request->getStr('state');
$response_type = $request->getStr('response_type');
$response = new PhabricatorOAuthResponse();
// state is an opaque value the client sent us for their own purposes
// we just need to send it right back to them in the response!
if ($state) {
$response->setState($state);
}
if (!$client_phid) {
$response->setError('invalid_request');
$response->setErrorDescription('Required parameter client_id not specified.');
return $response;
}
$server->setUser($current_user);
// one giant try / catch around all the exciting database stuff so we
// can return a 'server_error' response if something goes wrong!
try {
$client = id(new PhabricatorOAuthServerClient())->loadOneWhere('phid = %s', $client_phid);
if (!$client) {
$response->setError('invalid_request');
$response->setErrorDescription('Client with id ' . $client_phid . ' not found.');
return $response;
}
$server->setClient($client);
if ($redirect_uri) {
$client_uri = new PhutilURI($client->getRedirectURI());
$redirect_uri = new PhutilURI($redirect_uri);
if (!$server->validateSecondaryRedirectURI($redirect_uri, $client_uri)) {
$response->setError('invalid_request');
$response->setErrorDescription('The specified redirect URI is invalid. The redirect URI ' . 'must be a fully-qualified domain with no fragments and ' . 'must have the same domain and at least the same query ' . 'parameters as the redirect URI the client registered.');
return $response;
}
$uri = $redirect_uri;
$access_token_uri = $uri;
} else {
$uri = new PhutilURI($client->getRedirectURI());
$access_token_uri = null;
}
// we've now validated this request enough overall such that we
// can safely redirect to the client with the response
$response->setClientURI($uri);
if (empty($response_type)) {
$response->setError('invalid_request');
$response->setErrorDescription('Required parameter response_type not specified.');
return $response;
}
if ($response_type != 'code') {
$response->setError('unsupported_response_type');
$response->setErrorDescription('The authorization server does not support obtaining an ' . 'authorization code using the specified response_type. ' . 'You must specify the response_type as "code".');
return $response;
}
if ($scope) {
if (!PhabricatorOAuthServerScope::validateScopesList($scope)) {
$response->setError('invalid_scope');
$response->setErrorDescription('The requested scope is invalid, unknown, or malformed.');
return $response;
}
$scope = PhabricatorOAuthServerScope::scopesListToDict($scope);
}
list($is_authorized, $authorization) = $server->userHasAuthorizedClient($scope);
if ($is_authorized) {
$return_auth_code = true;
$unguarded_write = AphrontWriteGuard::beginScopedUnguardedWrites();
} else {
if ($request->isFormPost()) {
$scope = PhabricatorOAuthServerScope::getScopesFromRequest($request);
if ($authorization) {
$authorization->setScope($scope)->save();
} else {
$authorization = $server->authorizeClient($scope);
}
$return_auth_code = true;
$unguarded_write = null;
} else {
$return_auth_code = false;
$unguarded_write = null;
}
}
if ($return_auth_code) {
// step 1 -- generate authorization code
$auth_code = $server->generateAuthorizationCode($access_token_uri);
// step 2 return it
$content = array('code' => $auth_code->getCode(), 'scope' => $authorization->getScopeString());
$response->setContent($content);
return $response;
}
unset($unguarded_write);
} catch (Exception $e) {
// Note we could try harder to determine between a server_error
// vs temporarily_unavailable. Good enough though.
$response->setError('server_error');
$response->setErrorDescription('The authorization server encountered an unexpected condition ' . 'which prevented it from fulfilling the request. ');
return $response;
}
// display time -- make a nice form for the user to grant the client
// access to the granularity specified by $scope
$name = phutil_escape_html($client->getName());
$title = 'Authorize ' . $name . '?';
$panel = new AphrontPanelView();
$panel->setWidth(AphrontPanelView::WIDTH_FORM);
$panel->setHeader($title);
$description = "Do want to authorize {$name} to access your " . "Phabricator account data?";
if ($scope) {
if ($authorization) {
$desired_scopes = array_merge($scope, $authorization->getScope());
} else {
$desired_scopes = $scope;
}
if (!PhabricatorOAuthServerScope::validateScopesDict($desired_scopes)) {
$response->setError('invalid_scope');
$response->setErrorDescription('The requested scope is invalid, unknown, or malformed.');
return $response;
}
} else {
$desired_scopes = array(PhabricatorOAuthServerScope::SCOPE_WHOAMI => 1, PhabricatorOAuthServerScope::SCOPE_OFFLINE_ACCESS => 1);
}
$cancel_uri = clone $uri;
$cancel_params = array('error' => 'access_denied', 'error_description' => 'The resource owner (aka the user) denied the request.');
$cancel_uri->setQueryParams($cancel_params);
$form = id(new AphrontFormView())->setUser($current_user)->appendChild(id(new AphrontFormStaticControl())->setValue($description))->appendChild(PhabricatorOAuthServerScope::getCheckboxControl($desired_scopes))->appendChild(id(new AphrontFormSubmitControl())->setValue('Authorize')->addCancelButton($cancel_uri));
$panel->appendChild($form);
return $this->buildStandardPageResponse($panel, array('title' => $title));
}
