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phab/src/applications/oauthserver/controller/auth/PhabricatorOAuthServerAuthController.php
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PhabricatorOAuthServerAuthController.php
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<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @group oauthserver
*/
final class PhabricatorOAuthServerAuthController
extends PhabricatorAuthController {
public function shouldRequireLogin() {
return true;
}
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);
}
$authorization = $server->userHasAuthorizedClient($scope);
if ($authorization) {
$return_auth_code = true;
$unguarded_write = AphrontWriteGuard::beginScopedUnguardedWrites();
} else if ($request->isFormPost()) {
$scope = PhabricatorOAuthServerScope::getScopesFromRequest($request);
$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 $response->setClientURI($uri);
}
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) {
$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 = $this->getClientURI($client, $redirect_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($description)
)
->appendChild(
PhabricatorOAuthServerScope::getCheckboxControl()
)
->appendChild(
id(new AphrontFormSubmitControl())
->setValue('Authorize')
->addCancelButton($cancel_uri)
);
$panel->appendChild($form);
return $this->buildStandardPageResponse(
$panel,
array('title' => $title));
}
}
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