From e9fedf3e5cd63aea4da7a71f6647ee427c62fa49 Mon Sep 17 00:00:00 2001
From: Frederic Guillot <fred@kanboard.net>
Date: Sat, 5 Dec 2015 20:31:27 -0500
Subject: Rewrite of the authentication and authorization system

---
 app/Core/Security/AuthenticationManager.php | 187 ++++++++++++++++++++++++++++
 1 file changed, 187 insertions(+)
 create mode 100644 app/Core/Security/AuthenticationManager.php

(limited to 'app/Core/Security/AuthenticationManager.php')

diff --git a/app/Core/Security/AuthenticationManager.php b/app/Core/Security/AuthenticationManager.php
new file mode 100644
index 00000000..cced58c0
--- /dev/null
+++ b/app/Core/Security/AuthenticationManager.php
@@ -0,0 +1,187 @@
+<?php
+
+namespace Kanboard\Core\Security;
+
+use LogicException;
+use Kanboard\Core\Base;
+use Kanboard\Core\User\UserProviderInterface;
+use Kanboard\Event\AuthFailureEvent;
+use Kanboard\Event\AuthSuccessEvent;
+
+/**
+ * Authentication Manager
+ *
+ * @package  security
+ * @author   Frederic Guillot
+ */
+class AuthenticationManager extends Base
+{
+    /**
+     * Event names
+     *
+     * @var string
+     */
+    const EVENT_SUCCESS = 'auth.success';
+    const EVENT_FAILURE = 'auth.failure';
+
+    /**
+     * List of authentication providers
+     *
+     * @access private
+     * @var array
+     */
+    private $providers = array();
+
+    /**
+     * Register a new authentication provider
+     *
+     * @access public
+     * @param  AuthenticationProviderInterface $provider
+     * @return AuthenticationManager
+     */
+    public function register(AuthenticationProviderInterface $provider)
+    {
+        $this->providers[$provider->getName()] = $provider;
+        return $this;
+    }
+
+    /**
+     * Register a new authentication provider
+     *
+     * @access public
+     * @param  string $name
+     * @return AuthenticationProviderInterface|OAuthAuthenticationProviderInterface|PasswordAuthenticationProviderInterface|PreAuthenticationProviderInterface|OAuthAuthenticationProviderInterface
+     */
+    public function getProvider($name)
+    {
+        if (! isset($this->providers[$name])) {
+            throw new LogicException('Authentication provider not found: '.$name);
+        }
+
+        return $this->providers[$name];
+    }
+
+    /**
+     * Execute providers that are able to validate the current session
+     *
+     * @access public
+     * @return boolean
+     */
+    public function checkCurrentSession()
+    {
+        if ($this->userSession->isLogged() ) {
+            foreach ($this->filterProviders('SessionCheckProviderInterface') as $provider) {
+                if (! $provider->isValidSession()) {
+                    unset($this->sessionStorage->user);
+                    $this->preAuthentication();
+                    return false;
+                }
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Execute pre-authentication providers
+     *
+     * @access public
+     * @return boolean
+     */
+    public function preAuthentication()
+    {
+        foreach ($this->filterProviders('PreAuthenticationProviderInterface') as $provider) {
+            if ($provider->authenticate() && $this->userProfile->initialize($provider->getUser())) {
+                $this->dispatcher->dispatch(self::EVENT_SUCCESS, new AuthSuccessEvent($provider->getName()));
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Execute username/password authentication providers
+     *
+     * @access public
+     * @param  string  $username
+     * @param  string  $password
+     * @param  boolean $fireEvent
+     * @return boolean
+     */
+    public function passwordAuthentication($username, $password, $fireEvent = true)
+    {
+        foreach ($this->filterProviders('PasswordAuthenticationProviderInterface') as $provider) {
+            $provider->setUsername($username);
+            $provider->setPassword($password);
+
+            if ($provider->authenticate() && $this->userProfile->initialize($provider->getUser())) {
+                if ($fireEvent) {
+                    $this->dispatcher->dispatch(self::EVENT_SUCCESS, new AuthSuccessEvent($provider->getName()));
+                }
+
+                return true;
+            }
+        }
+
+        if ($fireEvent) {
+            $this->dispatcher->dispatch(self::EVENT_FAILURE, new AuthFailureEvent($username));
+        }
+
+        return false;
+    }
+
+    /**
+     * Perform OAuth2 authentication
+     *
+     * @access public
+     * @param  string  $name
+     * @return boolean
+     */
+    public function oauthAuthentication($name)
+    {
+        $provider = $this->getProvider($name);
+
+        if ($provider->authenticate() && $this->userProfile->initialize($provider->getUser())) {
+            $this->dispatcher->dispatch(self::EVENT_SUCCESS, new AuthSuccessEvent($provider->getName()));
+            return true;
+        }
+
+        $this->dispatcher->dispatch(self::EVENT_FAILURE, new AuthFailureEvent);
+
+        return false;
+    }
+
+    /**
+     * Get the last Post-Authentication provider
+     *
+     * @access public
+     * @return PostAuthenticationProviderInterface
+     */
+    public function getPostAuthenticationProvider()
+    {
+        $providers = $this->filterProviders('PostAuthenticationProviderInterface');
+
+        if (empty($providers)) {
+            throw new LogicException('You must have at least one Post-Authentication Provider configured');
+        }
+
+        return array_pop($providers);
+    }
+
+    /**
+     * Filter registered providers by interface type
+     *
+     * @access private
+     * @param  string $interface
+     * @return array
+     */
+    private function filterProviders($interface)
+    {
+        $interface = '\Kanboard\Core\Security\\'.$interface;
+
+        return array_filter($this->providers, function(AuthenticationProviderInterface $provider) use ($interface) {
+            return is_a($provider, $interface);
+        });
+    }
+}
-- 
cgit v1.2.3