Authentication system moved + Persona comes back!

AuthController is dedicated to auhentication.
Persona is back, greater than ever!

See https://github.com/marienfressinaud/FreshRSS/issues/655

1 files changed, 182 insertions, 0 deletions

diff --git a/app/Controllers/authController.php b/app/Controllers/authController.php
new file mode 100644
index 000000000..2b67e34b8
--- /dev/null
+++ b/app/Controllers/authController.php
@@ -0,0 +1,182 @@
+<?php
+
+/**
+ * This controller handles action about authentication.
+ */
+class FreshRSS_auth_Controller extends Minz_ActionController {
+	/**
+	 * This action handles the login page.
+	 *
+	 * It forwards to the correct login page (form or Persona) or main page if
+	 * the user is already connected.
+	 */
+	public function loginAction() {
+		if (FreshRSS_Auth::hasAccess()) {
+			Minz_Request::forward(array('c' => 'index', 'a' => 'index'), true);
+		}
+
+		$auth_type = Minz_Configuration::authType();
+		switch ($auth_type) {
+		case 'form':
+			Minz_Request::forward(array('c' => 'auth', 'a' => 'formLogin'));
+			break;
+		case 'persona':
+			Minz_Request::forward(array('c' => 'auth', 'a' => 'personaLogin'));
+			break;
+		case 'http_auth':
+		case 'none':
+			// It should not happened!
+			Minz_Error::error(404);
+		default:
+			// TODO load plugin instead
+			Minz_Error::error(404);
+		}
+	}
+
+	/**
+	 * This action handles form login page.
+	 *
+	 * If this action is reached through a POST request, username and password
+	 * are compared to login the current user.
+	 *
+	 * Parameters are:
+	 *   - nonce (default: false)
+	 *   - username (default: '')
+	 *   - challenge (default: '')
+	 *   - keep_logged_in (default: false)
+	 */
+	public function formLoginAction() {
+		invalidateHttpCache();
+
+		$file_mtime = @filemtime(PUBLIC_PATH . '/scripts/bcrypt.min.js');
+		Minz_View::appendScript(Minz_Url::display('/scripts/bcrypt.min.js?' . $file_mtime));
+
+		if (Minz_Request::isPost()) {
+			$nonce = Minz_Session::param('nonce');
+			$username = Minz_Request::param('username', '');
+			$challenge = Minz_Request::param('challenge', '');
+			try {
+				$conf = new FreshRSS_Configuration($username);
+			} catch(Minz_Exception $e) {
+				// $username is not a valid user, nor the configuration file!
+				Minz_Log::warning('Login failure: ' . $e->getMessage());
+				Minz_Request::bad(_t('invalid_login'),
+				                  array('c' => 'auth', 'a' => 'login'));
+			}
+
+			$ok = FreshRSS_FormAuth::checkCredentials(
+				$username, $conf->passwordHash, $nonce, $challenge
+			);
+			if ($ok) {
+				// Set session parameter to give access to the user.
+				Minz_Session::_param('currentUser', $username);
+				Minz_Session::_param('passwordHash', $conf->passwordHash);
+				FreshRSS_Auth::giveAccess();
+
+				// Set cookie parameter if nedded.
+				if (Minz_Request::param('keep_logged_in')) {
+					FreshRSS_FormAuth::makeCookie($username, $conf->passwordHash);
+				} else {
+					FreshRSS_FormAuth::deleteCookie();
+				}
+
+				// All is good, go back to the index.
+				Minz_Request::good(_t('login'),
+				                   array('c' => 'index', 'a' => 'index'));
+			} else {
+				Minz_Log::warning('Password mismatch for' .
+				                  ' user=' . $username .
+				                  ', nonce=' . $nonce .
+				                  ', c=' . $challenge);
+				Minz_Request::bad(_t('invalid_login'),
+				                  array('c' => 'auth', 'a' => 'login'));
+			}
+		}
+	}
+
+	/**
+	 * This action handles Persona login page.
+	 *
+	 * If this action is reached through a POST request, assertion from Persona
+	 * is verificated and user connected if all is ok.
+	 *
+	 * Parameter is:
+	 *   - assertion (default: false)
+	 *
+	 * @todo: Persona system should be moved to a plugin
+	 */
+	public function personaLoginAction() {
+		$this->view->res = false;
+
+		if (Minz_Request::isPost()) {
+			$this->view->_useLayout(false);
+
+			$assert = Minz_Request::param('assertion');
+			$url = 'https://verifier.login.persona.org/verify';
+			$params = 'assertion=' . $assert . '&audience=' .
+			          urlencode(Minz_Url::display(null, 'php', true));
+			$ch = curl_init();
+			$options = array(
+				CURLOPT_URL => $url,
+				CURLOPT_RETURNTRANSFER => TRUE,
+				CURLOPT_POST => 2,
+				CURLOPT_POSTFIELDS => $params
+			);
+			curl_setopt_array($ch, $options);
+			$result = curl_exec($ch);
+			curl_close($ch);
+
+			$res = json_decode($result, true);
+
+			$login_ok = false;
+			$reason = '';
+			if ($res['status'] === 'okay') {
+				$email = filter_var($res['email'], FILTER_VALIDATE_EMAIL);
+				if ($email != '') {
+					$persona_file = DATA_PATH . '/persona/' . $email . '.txt';
+					if (($current_user = @file_get_contents($persona_file)) !== false) {
+						$current_user = trim($current_user);
+						try {
+							$conf = new FreshRSS_Configuration($current_user);
+							$login_ok = strcasecmp($email, $conf->mail_login) === 0;
+						} catch (Minz_Exception $e) {
+							//Permission denied or conf file does not exist
+							$reason = 'Invalid configuration for user ' .
+							          '[' . $current_user . '] ' . $e->getMessage();
+						}
+					}
+				} else {
+					$reason = 'Invalid email format [' . $res['email'] . ']';
+				}
+			} else {
+				$reason = $res['reason'];
+			}
+
+			if ($login_ok) {
+				Minz_Session::_param('currentUser', $current_user);
+				Minz_Session::_param('mail', $email);
+				FreshRSS_Auth::giveAccess();
+				invalidateHttpCache();
+			} else {
+				Minz_Log::error($reason);
+
+				$res = array();
+				$res['status'] = 'failure';
+				$res['reason'] = _t('invalid_login');
+			}
+
+			header('Content-Type: application/json; charset=UTF-8');
+			$this->view->res = $res;
+		}
+	}
+
+	/**
+	 * This action removes all accesses of the current user.
+	 */
+	public function logoutAction() {
+		invalidateHttpCache();
+		FreshRSS_Auth::removeAccess();
+		Minz_Request::good(_t('disconnected'),
+		                   array('c' => 'index', 'a' => 'index'));
+	}
+}