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Handle authentication exceptions in Login module

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- Break down large methods into smaller ones
- Add more authentication exception
- Add a legacy User::authenticate method
This commit is contained in:
Hypolite Petovan 2018-02-09 00:08:01 -05:00
parent 6f9c66b0bc
commit 8a9917857e
2 changed files with 187 additions and 116 deletions
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128
src/Model/User.php
View file

@ -94,56 +94,36 @@ class User
/**
* Authenticate a user with a clear text password
*
* @brief Authenticate a user with a clear text password
*
* User info can be any of the following:
* - User DB object
* - User Id
* - User email or username or nickname
* - User array with at least the uid and the hashed password
*
* @param mixed $user_info
* @param string $password
* @return boolean
* @return int|boolean
* @deprecated since version 3.6
* @see Friendica\Model\User::getIdFromPasswordAuthentication()
*/
public static function authenticate($user_info, $password)
{
if (is_object($user_info)) {
$user = (array) $user_info;
} elseif (is_int($user_info)) {
$user = dba::selectFirst('user', ['uid', 'password', 'legacy_password'],
[
'uid' => $user_info,
'blocked' => 0,
'account_expired' => 0,
'account_removed' => 0,
'verified' => 1
]
);
} elseif (is_string($user_info)) {
$user = dba::fetch_first('SELECT `uid`, `password`, `legacy_password`
FROM `user`
WHERE (`email` = ? OR `username` = ? OR `nickname` = ?)
AND `blocked` = 0
AND `account_expired` = 0
AND `account_removed` = 0
AND `verified` = 1
LIMIT 1',
$user_info,
$user_info,
$user_info
);
} else {
$user = $user_info;
try {
return self::getIdFromPasswordAuthentication($user_info, $password);
} catch (Exception $ex) {
return false;
}
}
if (!DBM::is_result($user)
|| !isset($user['uid'])
|| !isset($user['password'])
|| !isset($user['legacy_password'])
) {
throw new Exception('Not enough information to authenticate');
}
/**
* Returns the user id associated with a successful password authentication
*
* @brief Authenticate a user with a clear text password
* @param mixed $user_info
* @param string $password
* @return int User Id if authentication is successful
* @throws Exception
*/
public static function getIdFromPasswordAuthentication($user_info, $password)
{
$user = self::getAuthenticationInfo($user_info);
if ($user['legacy_password']) {
if (password_verify(self::hashPasswordLegacy($password), $user['password'])) {
@ -159,7 +139,69 @@ class User
return $user['uid'];
}
return false;
throw new Exception(L10n::t('Login failed'));
}
/**
* Returns authentication info from various parameters types
*
* User info can be any of the following:
* - User DB object
* - User Id
* - User email or username or nickname
* - User array with at least the uid and the hashed password
*
* @param mixed $user_info
* @return array
* @throws Exception
*/
private static function getAuthenticationInfo($user_info)
{
if (is_object($user_info) || is_array($user_info)) {
if (is_object($user_info)) {
$user = (array) $user_info;
} else {
$user = $user_info;
}
if (!isset($user['uid'])
|| !isset($user['password'])
|| !isset($user['legacy_password'])
) {
throw new Exception(L10n::t('Not enough information to authenticate'));
}
} elseif (is_int($user_info) || is_string($user_info)) {
if (is_int($user_info)) {
$user = dba::selectFirst('user', ['uid', 'password', 'legacy_password'],
[
'uid' => $user_info,
'blocked' => 0,
'account_expired' => 0,
'account_removed' => 0,
'verified' => 1
]
);
} else {
$user = dba::fetch_first('SELECT `uid`, `password`, `legacy_password`
FROM `user`
WHERE (`email` = ? OR `username` = ? OR `nickname` = ?)
AND `blocked` = 0
AND `account_expired` = 0
AND `account_removed` = 0
AND `verified` = 1
LIMIT 1',
$user_info,
$user_info,
$user_info
);
}
if (!DBM::is_result($user)) {
throw new Exception(L10n::t('User not found'));
}
}
return $user;
}
/**

75
src/Module/Login.php
View file

@ -51,15 +51,35 @@ class Login extends BaseModule
session_unset();
// OpenId Login
if (
!x($_POST, 'password')
empty($_POST['password'])
&& (
x($_POST, 'openid_url')
|| x($_POST, 'username')
!empty($_POST['openid_url'])
|| !empty($_POST['username'])
)
) {
$noid = Config::get('system', 'no_openid');
$openid_url = trim(defaults($_POST, 'openid_url', $_POST['username']));
$openid_url = trim($_POST['openid_url'] ? : $_POST['username']);
self::openIdAuthentication($openid_url, !empty($_POST['remember']));
}
if (x($_POST, 'auth-params') && $_POST['auth-params'] === 'login') {
self::passwordAuthentication(
trim($_POST['username']),
trim($_POST['password']),
!empty($_POST['remember'])
);
}
}
/**
* Attempts to authenticate using OpenId
*
* @param string $openid_url OpenID URL string
* @param bool $remember Whether to set the session remember flag
*/
private static function openIdAuthentication($openid_url, $remember)
{
$noid = Config::get('system', 'no_openid');
// if it's an email address or doesn't resolve to a URL, fail.
if ($noid || strpos($openid_url, '@') || !Network::isUrlValid($openid_url)) {
@ -73,21 +93,28 @@ class Login extends BaseModule
$openid = new LightOpenID;
$openid->identity = $openid_url;
$_SESSION['openid'] = $openid_url;
$_SESSION['remember'] = $_POST['remember'];
$_SESSION['remember'] = $remember;
$openid->returnUrl = self::getApp()->get_baseurl(true) . '/openid';
goaway($openid->authUrl());
} catch (Exception $e) {
notice(L10n::t('We encountered a problem while logging in with the OpenID you provided. Please check the correct spelling of the ID.') . '<br /><br >' . L10n::t('The error message was:') . ' ' . $e->getMessage());
}
// NOTREACHED
}
if (x($_POST, 'auth-params') && $_POST['auth-params'] === 'login') {
/**
* Attempts to authenticate using login/password
*
* @param string $username User name
* @param string $password Clear password
* @param bool $remember Whether to set the session remember flag
*/
private static function passwordAuthentication($username, $password, $remember)
{
$record = null;
$addon_auth = [
'username' => trim($_POST['username']),
'password' => trim($_POST['password']),
'username' => $username,
'password' => $password,
'authenticated' => 0,
'user_record' => null
];
@ -99,27 +126,30 @@ class Login extends BaseModule
*/
Addon::callHooks('authenticate', $addon_auth);
if ($addon_auth['authenticated'] && count($addon_auth['user_record'])) {
try {
if ($addon_auth['authenticated']) {
$record = $addon_auth['user_record'];
if (empty($record)) {
throw new Exception(L10n::t('Login failed.'));
}
} else {
$user_id = User::authenticate(trim($_POST['username']), trim($_POST['password']));
if ($user_id) {
$record = dba::selectFirst('user', [], ['uid' => $user_id]);
$record = dba::selectFirst('user', [],
['uid' => User::getIdFromPasswordAuthentication($username, $password)]
);
}
} catch (Exception $e) {
logger('authenticate: failed login attempt: ' . notags($username) . ' from IP ' . $_SERVER['REMOTE_ADDR']);
notice($e->getMessage() . EOL);
goaway(self::getApp()->get_baseurl() . '/login');
}
if (!$record || !count($record)) {
logger('authenticate: failed login attempt: ' . notags(trim($_POST['username'])) . ' from IP ' . $_SERVER['REMOTE_ADDR']);
notice(L10n::t('Login failed.') . EOL);
goaway(self::getApp()->get_baseurl());
}
if (!$_POST['remember']) {
if (!$remember) {
new_cookie(0); // 0 means delete on browser exit
}
// if we haven't failed up this point, log them in.
$_SESSION['remember'] = $_POST['remember'];
$_SESSION['remember'] = $remember;
$_SESSION['last_login_date'] = DateTimeFormat::utcNow();
authenticate_success($record, true, true);
@ -132,7 +162,6 @@ class Login extends BaseModule
goaway($return_url);
}
}
/**
* @brief Tries to auth the user from the cookie or session