1 files changed, 259 insertions, 0 deletions
diff --git a/phpBB/phpbb/auth/provider/apache.php b/phpBB/phpbb/auth/provider/apache.php
new file mode 100644
index 0000000000..2e80436f78
--- /dev/null
+++ b/phpBB/phpbb/auth/provider/apache.php
@@ -0,0 +1,259 @@
+<?php
+/**
+*
+* @package auth
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+ * Apache authentication provider for phpBB3
+ *
+ * @package auth
+ */
+class phpbb_auth_provider_apache extends phpbb_auth_provider_base
+{
+	/**
+	 * Apache Authentication Constructor
+	 *
+	 * @param 	phpbb_db_driver 	$db
+	 * @param 	phpbb_config 		$config
+	 * @param 	phpbb_request 		$request
+	 * @param 	phpbb_user 			$user
+	 * @param 	string 				$phpbb_root_path
+	 * @param 	string 				$php_ext
+	 */
+	public function __construct(phpbb_db_driver $db, phpbb_config $config, phpbb_request $request, phpbb_user $user, $phpbb_root_path, $php_ext)
+	{
+		$this->db = $db;
+		$this->config = $config;
+		$this->request = $request;
+		$this->user = $user;
+		$this->phpbb_root_path = $phpbb_root_path;
+		$this->php_ext = $php_ext;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function init()
+	{
+		if (!$this->request->is_set('PHP_AUTH_USER', phpbb_request_interface::SERVER) || $this->user->data['username'] !== htmlspecialchars_decode($this->request->server('PHP_AUTH_USER')))
+		{
+			return $this->user->lang['APACHE_SETUP_BEFORE_USE'];
+		}
+		return false;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function login($username, $password)
+	{
+		// do not allow empty password
+		if (!$password)
+		{
+			return array(
+				'status'	=> LOGIN_ERROR_PASSWORD,
+				'error_msg'	=> 'NO_PASSWORD_SUPPLIED',
+				'user_row'	=> array('user_id' => ANONYMOUS),
+			);
+		}
+
+		if (!$username)
+		{
+			return array(
+				'status'	=> LOGIN_ERROR_USERNAME,
+				'error_msg'	=> 'LOGIN_ERROR_USERNAME',
+				'user_row'	=> array('user_id' => ANONYMOUS),
+			);
+		}
+
+		if (!$this->request->is_set('PHP_AUTH_USER', phpbb_request_interface::SERVER))
+		{
+			return array(
+				'status'		=> LOGIN_ERROR_EXTERNAL_AUTH,
+				'error_msg'		=> 'LOGIN_ERROR_EXTERNAL_AUTH_APACHE',
+				'user_row'		=> array('user_id' => ANONYMOUS),
+			);
+		}
+
+		$php_auth_user = htmlspecialchars_decode($this->request->server('PHP_AUTH_USER'));
+		$php_auth_pw = htmlspecialchars_decode($this->request->server('PHP_AUTH_PW'));
+
+		if (!empty($php_auth_user) && !empty($php_auth_pw))
+		{
+			if ($php_auth_user !== $username)
+			{
+				return array(
+					'status'	=> LOGIN_ERROR_USERNAME,
+					'error_msg'	=> 'LOGIN_ERROR_USERNAME',
+					'user_row'	=> array('user_id' => ANONYMOUS),
+				);
+			}
+
+			$sql = 'SELECT user_id, username, user_password, user_passchg, user_email, user_type
+				FROM ' . USERS_TABLE . "
+				WHERE username = '" . $this->db->sql_escape($php_auth_user) . "'";
+			$result = $this->db->sql_query($sql);
+			$row = $this->db->sql_fetchrow($result);
+			$this->db->sql_freeresult($result);
+
+			if ($row)
+			{
+				// User inactive...
+				if ($row['user_type'] == USER_INACTIVE || $row['user_type'] == USER_IGNORE)
+				{
+					return array(
+						'status'		=> LOGIN_ERROR_ACTIVE,
+						'error_msg'		=> 'ACTIVE_ERROR',
+						'user_row'		=> $row,
+					);
+				}
+
+				// Successful login...
+				return array(
+					'status'		=> LOGIN_SUCCESS,
+					'error_msg'		=> false,
+					'user_row'		=> $row,
+				);
+			}
+
+			// this is the user's first login so create an empty profile
+			return array(
+				'status'		=> LOGIN_SUCCESS_CREATE_PROFILE,
+				'error_msg'		=> false,
+				'user_row'		=> user_row_apache($php_auth_user, $php_auth_pw),
+			);
+		}
+
+		// Not logged into apache
+		return array(
+			'status'		=> LOGIN_ERROR_EXTERNAL_AUTH,
+			'error_msg'		=> 'LOGIN_ERROR_EXTERNAL_AUTH_APACHE',
+			'user_row'		=> array('user_id' => ANONYMOUS),
+		);
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function autologin()
+	{
+		if (!$this->request->is_set('PHP_AUTH_USER', phpbb_request_interface::SERVER))
+		{
+			return array();
+		}
+
+		$php_auth_user = htmlspecialchars_decode($this->request->server('PHP_AUTH_USER'));
+		$php_auth_pw = htmlspecialchars_decode($this->request->server('PHP_AUTH_PW'));
+
+		if (!empty($php_auth_user) && !empty($php_auth_pw))
+		{
+			set_var($php_auth_user, $php_auth_user, 'string', true);
+			set_var($php_auth_pw, $php_auth_pw, 'string', true);
+
+			$sql = 'SELECT *
+				FROM ' . USERS_TABLE . "
+				WHERE username = '" . $this->db->sql_escape($php_auth_user) . "'";
+			$result = $this->db->sql_query($sql);
+			$row = $this->db->sql_fetchrow($result);
+			$this->db->sql_freeresult($result);
+
+			if ($row)
+			{
+				return ($row['user_type'] == USER_INACTIVE || $row['user_type'] == USER_IGNORE) ? array() : $row;
+			}
+
+			if (!function_exists('user_add'))
+			{
+				include($this->phpbb_root_path . 'includes/functions_user.' . $this->php_ext);
+			}
+
+			// create the user if he does not exist yet
+			user_add(user_row_apache($php_auth_user, $php_auth_pw));
+
+			$sql = 'SELECT *
+				FROM ' . USERS_TABLE . "
+				WHERE username_clean = '" . $this->db->sql_escape(utf8_clean_string($php_auth_user)) . "'";
+			$result = $this->db->sql_query($sql);
+			$row = $this->db->sql_fetchrow($result);
+			$this->db->sql_freeresult($result);
+
+			if ($row)
+			{
+				return $row;
+			}
+		}
+
+		return array();
+	}
+
+	/**
+	 * This function generates an array which can be passed to the user_add
+	 * function in order to create a user
+	 *
+	 * @param 	string	$username 	The username of the new user.
+	 * @param 	string	$password 	The password of the new user.
+	 * @return 	array 				Contains data that can be passed directly to
+	 *								the user_add function.
+	 */
+	private function user_row($username, $password)
+	{
+		// first retrieve default group id
+		$sql = 'SELECT group_id
+			FROM ' . GROUPS_TABLE . "
+			WHERE group_name = '" . $this->db->sql_escape('REGISTERED') . "'
+				AND group_type = " . GROUP_SPECIAL;
+		$result = $this->db->sql_query($sql);
+		$row = $this->db->sql_fetchrow($result);
+		$this->db->sql_freeresult($result);
+
+		if (!$row)
+		{
+			trigger_error('NO_GROUP');
+		}
+
+		// generate user account data
+		return array(
+			'username'		=> $username,
+			'user_password'	=> phpbb_hash($password),
+			'user_email'	=> '',
+			'group_id'		=> (int) $row['group_id'],
+			'user_type'		=> USER_NORMAL,
+			'user_ip'		=> $this->user->ip,
+			'user_new'		=> ($this->config['new_member_post_limit']) ? 1 : 0,
+		);
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function validate_session($user)
+	{
+		// Check if PHP_AUTH_USER is set and handle this case
+		if ($this->request->is_set('PHP_AUTH_USER', phpbb_request_interface::SERVER))
+		{
+			$php_auth_user = $this->request->server('PHP_AUTH_USER');
+
+			return ($php_auth_user === $user['username']) ? true : false;
+		}
+
+		// PHP_AUTH_USER is not set. A valid session is now determined by the user type (anonymous/bot or not)
+		if ($user['user_type'] == USER_IGNORE)
+		{
+			return true;
+		}
+
+		return false;
+	}
+}