Add direct arg to login flow

Signed-off-by: Vincent Petry <vincent@nextcloud.com>
Co-Authored-by: Carl Schwan <carl@carlschwan.eu>

core/Controller/ClientFlowLoginController.php

 	 * @PublicPage
 	 * @NoCSRFRequired
 	 * @UseSession
-	 *
-	 * @param string $clientIdentifier
-	 *
-	 * @return StandaloneTemplateResponse
 	 */
-	public function showAuthPickerPage($clientIdentifier = '', $user = '') {
+	public function showAuthPickerPage(string $clientIdentifier = '', string $user = '', int $direct = 0): StandaloneTemplateResponse {
 		$clientName = $this->getClientName();
 		$client = null;
 		if ($clientIdentifier !== '') {
 				'serverHost' => $this->getServerPath(),
 				'oauthState' => $this->session->get('oauth.state'),
 				'user' => $user,
+				'direct' => $direct,
 			],
 			'guest'
 		);
 	 * @NoCSRFRequired
 	 * @NoSameSiteCookieRequired
 	 * @UseSession
-	 *
-	 * @param string $stateToken
-	 * @param string $clientIdentifier
-	 * @return StandaloneTemplateResponse
 	 */
-	public function grantPage($stateToken = '',
-								 $clientIdentifier = '') {
+	public function grantPage(string $stateToken = '',
+				  string $clientIdentifier = '',
+				  int $direct = 0): StandaloneTemplateResponse {
 		if (!$this->isValidToken($stateToken)) {
 			return $this->stateTokenForbiddenResponse();
 		}
 				'stateToken' => $stateToken,
 				'serverHost' => $this->getServerPath(),
 				'oauthState' => $this->session->get('oauth.state'),
+				'direct' => $direct,
 			],
 			'guest'
 		);

core/templates/loginflow/authpicker.php

 	<br/>
 
 	<p id="redirect-link">
-		<a href="<?php p($urlGenerator->linkToRoute('core.ClientFlowLogin.grantPage', ['stateToken' => $_['stateToken'], 'clientIdentifier' => $_['clientIdentifier'], 'oauthState' => $_['oauthState'], 'user' => $_['user']])) ?>">
+		<a href="<?php p($urlGenerator->linkToRoute('core.ClientFlowLogin.grantPage', ['stateToken' => $_['stateToken'], 'clientIdentifier' => $_['clientIdentifier'], 'oauthState' => $_['oauthState'], 'user' => $_['user'], 'direct' => $_['direct']])) ?>">
 			<input type="submit" class="login primary icon-confirm-white" value="<?php p($l->t('Log in')) ?>">
 		</a>
 	</p>
 		</p>
 		<input type="hidden" name="stateToken" value="<?php p($_['stateToken']) ?>" />
 		<input type="hidden" name="requesttoken" value="<?php p($_['requesttoken']) ?>">
+		<?php if ($_['direct'] !== 0) { ?>
+			<input type="hidden" name="direct" value="<?php p($_['direct']) ?>">
+		<?php } ?>
 		<input id="submit-app-token-login" type="submit" class="login primary icon-confirm-white" value="<?php p($l->t('Grant access')) ?>">
 	</form>
 

core/templates/loginflow/grant.php

 	<br/>
 
 	<p id="redirect-link">
-		<form method="POST" action="<?php p($urlGenerator->linkToRouteAbsolute('core.ClientFlowLogin.generateAppPassword')) ?>">	
-			<input type="hidden" name="clientIdentifier" value="<?php p($_['clientIdentifier']) ?>" />	
-			<input type="hidden" name="requesttoken" value="<?php p($_['requesttoken']) ?>" />	
-			<input type="hidden" name="stateToken" value="<?php p($_['stateToken']) ?>" />	
-			<input type="hidden" name="oauthState" value="<?php p($_['oauthState']) ?>" />	
+		<form method="POST" action="<?php p($urlGenerator->linkToRouteAbsolute('core.ClientFlowLogin.generateAppPassword')) ?>">
+			<input type="hidden" name="clientIdentifier" value="<?php p($_['clientIdentifier']) ?>" />
+			<input type="hidden" name="requesttoken" value="<?php p($_['requesttoken']) ?>" />
+			<input type="hidden" name="stateToken" value="<?php p($_['stateToken']) ?>" />
+			<input type="hidden" name="oauthState" value="<?php p($_['oauthState']) ?>" />
+			<?php if (p($_['direct'])) { ?>
+			<input type="hidden" name="direct" value="1" />
+			<?php } ?>
 			<div id="submit-wrapper">
 				<input type="submit" class="login primary icon-confirm-white" title="" value="<?php p($l->t('Grant access')); ?>" />
-			</div>	
+			</div>
 		</form>
 	</p>
 </div>

lib/private/AppFramework/Middleware/Security/SecurityMiddleware.php

 					if ($usernamePrefill !== '') {
 						$params['user'] = $usernamePrefill;
 					}
+					if ($this->request->getParam('direct')) {
+						$params['direct'] = 1;
+					}
 					$url = $this->urlGenerator->linkToRoute('core.login.showLoginForm', $params);
 					$response = new RedirectResponse($url);
 				} else {

tests/Core/Controller/ClientFlowLoginControllerTest.php

 				'serverHost' => 'https://example.com',
 				'oauthState' => 'OauthStateToken',
 				'user' => '',
+				'direct' => 0
 			],
 			'guest'
 		);
 				'serverHost' => 'https://example.com',
 				'oauthState' => 'OauthStateToken',
 				'user' => '',
+				'direct' => 0
 			],
 			'guest'
 		);