friendica
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friendica
mirror of https://github.com/friendica/friendica
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Code redesign and comments

This commit is contained in:
Michael Vogel 2016-04-25 22:10:45 +02:00
parent 2c75a0fefc
commit 18aa43e6f6
1 changed files with 48 additions and 33 deletions
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81
include/auth.php
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@ -2,19 +2,12 @@
require_once('include/security.php'); require_once('include/security.php');
require_once('include/datetime.php'); require_once('include/datetime.php');
function nuke_session() {
new_cookie(-3600); // make sure cookie is deleted on browser close, as a security measure
session_unset();
session_destroy();
}
// When the "Friendica" cookie is set, take the value to authenticate and renew the cookie. // When the "Friendica" cookie is set, take the value to authenticate and renew the cookie.
if(isset($_COOKIE["Friendica"])) { if (isset($_COOKIE["Friendica"])) {
$data = json_decode($_COOKIE["Friendica"]); $data = json_decode($_COOKIE["Friendica"]);
if (isset($data->uid)) { if (isset($data->uid)) {
$r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey` $r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey`
FROM `user` WHERE `uid` = %d AND `blocked` = 0 AND `account_expired` = 0 AND `account_removed` = 0 AND `verified` = 1 LIMIT 1", FROM `user` WHERE `uid` = %d AND NOT `blocked` AND NOT `account_expired` AND NOT `account_removed` AND `verified` LIMIT 1",
intval($data->uid) intval($data->uid)
); );
@ -29,7 +22,7 @@ if(isset($_COOKIE["Friendica"])) {
new_cookie(604800, $r[0]); new_cookie(604800, $r[0]);
// Do the authentification if not done by now // Do the authentification if not done by now
if(!isset($_SESSION) OR !isset($_SESSION['authenticated'])) { if (!isset($_SESSION) OR !isset($_SESSION['authenticated'])) {
authenticate_success($r[0]); authenticate_success($r[0]);
if (get_config('system','paranoia')) if (get_config('system','paranoia'))
@ -42,9 +35,9 @@ if(isset($_COOKIE["Friendica"])) {
// login/logout // login/logout
if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-params'))) || ($_POST['auth-params'] !== 'login'))) { if (isset($_SESSION) && x($_SESSION,'authenticated') && (!x($_POST,'auth-params') || ($_POST['auth-params'] !== 'login'))) {
if(((x($_POST,'auth-params')) && ($_POST['auth-params'] === 'logout')) || ($a->module === 'logout')) { if ((x($_POST,'auth-params') && ($_POST['auth-params'] === 'logout')) || ($a->module === 'logout')) {
// process logout request // process logout request
call_hooks("logging_out"); call_hooks("logging_out");
@ -53,34 +46,34 @@ if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-p
goaway(z_root()); goaway(z_root());
} }
if(x($_SESSION,'visitor_id') && (! x($_SESSION,'uid'))) { if (x($_SESSION,'visitor_id') && !x($_SESSION,'uid')) {
$r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1", $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
intval($_SESSION['visitor_id']) intval($_SESSION['visitor_id'])
); );
if(count($r)) { if (count($r)) {
$a->contact = $r[0]; $a->contact = $r[0];
} }
} }
if(x($_SESSION,'uid')) { if (x($_SESSION,'uid')) {
// already logged in user returning // already logged in user returning
$check = get_config('system','paranoia'); $check = get_config('system','paranoia');
// extra paranoia - if the IP changed, log them out // extra paranoia - if the IP changed, log them out
if($check && ($_SESSION['addr'] != $_SERVER['REMOTE_ADDR'])) { if ($check && ($_SESSION['addr'] != $_SERVER['REMOTE_ADDR'])) {
logger('Session address changed. Paranoid setting in effect, blocking session. ' logger('Session address changed. Paranoid setting in effect, blocking session. '.
. $_SESSION['addr'].' != '.$_SERVER['REMOTE_ADDR']); $_SESSION['addr'].' != '.$_SERVER['REMOTE_ADDR']);
nuke_session(); nuke_session();
goaway(z_root()); goaway(z_root());
} }
$r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey` $r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey`
FROM `user` WHERE `uid` = %d AND `blocked` = 0 AND `account_expired` = 0 AND `account_removed` = 0 AND `verified` = 1 LIMIT 1", FROM `user` WHERE `uid` = %d AND NOT `blocked` AND NOT `account_expired` AND NOT `account_removed` AND `verified` LIMIT 1",
intval($_SESSION['uid']) intval($_SESSION['uid'])
); );
if(! count($r)) { if (!count($r)) {
nuke_session(); nuke_session();
goaway(z_root()); goaway(z_root());
} }
@ -88,10 +81,10 @@ if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-p
// Make sure to refresh the last login time for the user if the user // Make sure to refresh the last login time for the user if the user
// stays logged in for a long time, e.g. with "Remember Me" // stays logged in for a long time, e.g. with "Remember Me"
$login_refresh = false; $login_refresh = false;
if(! x($_SESSION['last_login_date'])) { if (!x($_SESSION['last_login_date'])) {
$_SESSION['last_login_date'] = datetime_convert('UTC','UTC'); $_SESSION['last_login_date'] = datetime_convert('UTC','UTC');
} }
if(strcmp(datetime_convert('UTC','UTC','now - 12 hours'), $_SESSION['last_login_date']) > 0) { if (strcmp(datetime_convert('UTC','UTC','now - 12 hours'), $_SESSION['last_login_date']) > 0) {
$_SESSION['last_login_date'] = datetime_convert('UTC','UTC'); $_SESSION['last_login_date'] = datetime_convert('UTC','UTC');
$login_refresh = true; $login_refresh = true;
@ -102,10 +95,10 @@ if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-p
session_unset(); session_unset();
if((x($_POST,'password')) && strlen($_POST['password'])) if (x($_POST,'password') && strlen($_POST['password']))
$encrypted = hash('whirlpool',trim($_POST['password'])); $encrypted = hash('whirlpool',trim($_POST['password']));
else { else {
if((x($_POST,'openid_url')) && strlen($_POST['openid_url']) || if ((x($_POST,'openid_url')) && strlen($_POST['openid_url']) ||
(x($_POST,'username')) && strlen($_POST['username'])) { (x($_POST,'username')) && strlen($_POST['username'])) {
$noid = get_config('system','no_openid'); $noid = get_config('system','no_openid');
@ -118,7 +111,7 @@ if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-p
// if it's an email address or doesn't resolve to a URL, fail. // if it's an email address or doesn't resolve to a URL, fail.
if(($noid) || (strpos($temp_string,'@')) || (! validate_url($temp_string))) { if ($noid || strpos($temp_string,'@') || !validate_url($temp_string)) {
$a = get_app(); $a = get_app();
notice(t('Login failed.').EOL); notice(t('Login failed.').EOL);
goaway(z_root()); goaway(z_root());
@ -136,13 +129,13 @@ if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-p
$openid->returnUrl = $a->get_baseurl(true).'/openid'; $openid->returnUrl = $a->get_baseurl(true).'/openid';
goaway($openid->authUrl()); goaway($openid->authUrl());
} catch (Exception $e) { } catch (Exception $e) {
notice(t('We encountered a problem while logging in with the OpenID you provided. Please check the correct spelling of the ID.').'<br /><br >'. t('The error message was:').' '.$e->getMessage()); notice(t('We encountered a problem while logging in with the OpenID you provided. Please check the correct spelling of the ID.').'<br /><br >'.t('The error message was:').' '.$e->getMessage());
} }
// NOTREACHED // NOTREACHED
} }
} }
if((x($_POST,'auth-params')) && $_POST['auth-params'] === 'login') { if (x($_POST,'auth-params') && $_POST['auth-params'] === 'login') {
$record = null; $record = null;
@ -163,20 +156,20 @@ if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-p
call_hooks('authenticate', $addon_auth); call_hooks('authenticate', $addon_auth);
if(($addon_auth['authenticated']) && (count($addon_auth['user_record']))) { if ($addon_auth['authenticated'] && count($addon_auth['user_record']))
$record = $addon_auth['user_record']; $record = $addon_auth['user_record'];
} else { else {
// process normal login request // process normal login request
$r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey` $r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey`
FROM `user` WHERE (`email` = '%s' OR `nickname` = '%s') FROM `user` WHERE (`email` = '%s' OR `nickname` = '%s')
AND `password` = '%s' AND `blocked` = 0 AND `account_expired` = 0 AND `account_removed` = 0 AND `verified` = 1 LIMIT 1", AND `password` = '%s' AND NOT `blocked` AND NOT `account_expired` AND NOT `account_removed` AND `verified` LIMIT 1",
dbesc(trim($_POST['username'])), dbesc(trim($_POST['username'])),
dbesc(trim($_POST['username'])), dbesc(trim($_POST['username'])),
dbesc($encrypted) dbesc($encrypted)
); );
if(count($r)) if (count($r))
$record = $r[0]; $record = $r[0];
} }
@ -190,7 +183,7 @@ if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-p
// that expires after one week (the default is when the browser is closed). // that expires after one week (the default is when the browser is closed).
// The cookie will be renewed automatically. // The cookie will be renewed automatically.
// The week ensures that sessions will expire after some inactivity. // The week ensures that sessions will expire after some inactivity.
if($_POST['remember']) if ($_POST['remember'])
new_cookie(604800, $r[0]); new_cookie(604800, $r[0]);
else else
new_cookie(0); // 0 means delete on browser exit new_cookie(0); // 0 means delete on browser exit
@ -202,12 +195,35 @@ if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-p
} }
} }
/**
* @brief Kills the "Friendica" cookie and all session data
*/
function nuke_session() {
new_cookie(-3600); // make sure cookie is deleted on browser close, as a security measure
session_unset();
session_destroy();
}
/**
* @brief Calculate the hash that is needed for the "Friendica" cookie
*
* @param array $user Record from "user" table
*
* @return string Hashed data
*/
function cookie_hash($user) { function cookie_hash($user) {
return(hash("sha256", get_config("system", "site_prvkey"). return(hash("sha256", get_config("system", "site_prvkey").
$user["uprvkey"]. $user["uprvkey"].
$user["password"])); $user["password"]));
} }
/**
* @brief Set the "Friendica" cookie
*
* @param int $time
* @param array $user Record from "user" table
*/
function new_cookie($time, $user = array()) { function new_cookie($time, $user = array()) {
if ($time != 0) if ($time != 0)
@ -223,5 +239,4 @@ function new_cookie($time, $user = array()) {
setcookie("Friendica", $value, $time, "/", "", setcookie("Friendica", $value, $time, "/", "",
(get_config('system', 'ssl_policy') == SSL_POLICY_FULL), true); (get_config('system', 'ssl_policy') == SSL_POLICY_FULL), true);
return;
} }