<?php
+
+require_once('include/security.php');
+
+function nuke_session() {
+ unset($_SESSION['authenticated']);
+ unset($_SESSION['uid']);
+ unset($_SESSION['visitor_id']);
+ unset($_SESSION['administrator']);
+ unset($_SESSION['cid']);
+ unset($_SESSION['theme']);
+ unset($_SESSION['page_flags']);
+}
+
+
// login/logout
-if((x($_SESSION,'authenticated')) && (! ($_POST['auth-params'] == 'login'))) {
- if($_POST['auth-params'] == 'logout' || $a->module == "logout") {
- unset($_SESSION['authenticated']);
- unset($_SESSION['uid']);
- unset($_SESSION['visitor_id']);
- unset($_SESSION['administrator']);
- unset($_SESSION['cid']);
- unset($_SESSION['theme']);
- notice( t('Logged out.') . EOL);
- goaway($a->get_baseurl());
- }
- if(x($_SESSION,'uid')) {
- $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
- intval($_SESSION['uid']));
- if($r === NULL || (! count($r))) {
- goaway($a->get_baseurl());
- }
- $a->user = $r[0];
- $_SESSION['theme'] = $a->user['theme'];
- if(strlen($a->user['timezone']))
- date_default_timezone_set($a->user['timezone']);
- $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $r[0]['nickname'];
- $r = q("SELECT * FROM `contact` WHERE `uid` = %s AND `self` = 1 LIMIT 1",
- intval($_SESSION['uid']));
+
+if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-params'))) || ($_POST['auth-params'] !== 'login'))) {
+
+ if(((x($_POST,'auth-params')) && ($_POST['auth-params'] === 'logout')) || ($a->module === 'logout')) {
+
+ // process logout request
+
+ nuke_session();
+ info( t('Logged out.') . EOL);
+ goaway(z_root());
+ }
+
+ if(x($_SESSION,'visitor_id') && (! x($_SESSION,'uid'))) {
+ $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
+ intval($_SESSION['visitor_id'])
+ );
if(count($r)) {
$a->contact = $r[0];
- $a->cid = $r[0]['id'];
- $_SESSION['cid'] = $a->cid;
+ }
+ }
+
+ if(x($_SESSION,'uid')) {
+ // already logged in user returning
+
+ $check = get_config('system','paranoia');
+ // extra paranoia - if the IP changed, log them out
+ if($check && ($_SESSION['addr'] != $_SERVER['REMOTE_ADDR'])) {
+ nuke_session();
+ goaway(z_root());
+ }
+
+ $r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey`
+ FROM `user` WHERE `uid` = %d AND `blocked` = 0 AND `account_expired` = 0 AND `verified` = 1 LIMIT 1",
+ intval($_SESSION['uid'])
+ );
+
+ if(! count($r)) {
+ nuke_session();
+ goaway(z_root());
}
+
+ authenticate_success($r[0]);
}
}
else {
- unset($_SESSION['authenticated']);
- unset($_SESSION['uid']);
- unset($_SESSION['visitor_id']);
- unset($_SESSION['administrator']);
- unset($_SESSION['cid']);
- $encrypted = hash('whirlpool',trim($_POST['password']));
-
- if((x($_POST,'auth-params')) && $_POST['auth-params'] == 'login') {
- $r = q("SELECT * FROM `user`
- WHERE `email` = '%s' AND `password` = '%s' AND `blocked` = 0 AND `verified` = 1 LIMIT 1",
- dbesc(trim($_POST['login-name'])),
- dbesc($encrypted));
- if(($r === false) || (! count($r))) {
+
+ if(isset($_SESSION)) {
+ nuke_session();
+ }
+
+ if((x($_POST,'password')) && strlen($_POST['password']))
+ $encrypted = hash('whirlpool',trim($_POST['password']));
+ else {
+ if((x($_POST,'openid_url')) && strlen($_POST['openid_url']) ||
+ (x($_POST,'username')) && strlen($_POST['username'])) {
+
+ $noid = get_config('system','no_openid');
+
+ $openid_url = trim( (strlen($_POST['openid_url'])?$_POST['openid_url']:$_POST['username']) );
+
+ // validate_url alters the calling parameter
+
+ $temp_string = $openid_url;
+
+ // if it's an email address or doesn't resolve to a URL, fail.
+
+ if(($noid) || (strpos($temp_string,'@')) || (! validate_url($temp_string))) {
+ $a = get_app();
+ notice( t('Login failed.') . EOL);
+ goaway(z_root());
+ // NOTREACHED
+ }
+
+ // Otherwise it's probably an openid.
+
+ require_once('library/openid.php');
+ $openid = new LightOpenID;
+ $openid->identity = $openid_url;
+ $_SESSION['openid'] = $openid_url;
+ $a = get_app();
+ $openid->returnUrl = $a->get_baseurl() . '/openid';
+
+ $r = q("SELECT `uid` FROM `user` WHERE `openid` = '%s' LIMIT 1",
+ dbesc($openid_url)
+ );
+ if(count($r)) {
+ // existing account
+ goaway($openid->authUrl());
+ // NOTREACHED
+ }
+ else {
+ if($a->config['register_policy'] == REGISTER_CLOSED) {
+ $a = get_app();
+ notice( t('Login failed.') . EOL);
+ goaway(z_root());
+ // NOTREACHED
+ }
+ // new account
+ $_SESSION['register'] = 1;
+ $openid->required = array('namePerson/friendly', 'contact/email', 'namePerson');
+ $openid->optional = array('namePerson/first','media/image/aspect11','media/image/default');
+ goaway($openid->authUrl());
+ // NOTREACHED
+ }
+ }
+ }
+ if((x($_POST,'auth-params')) && $_POST['auth-params'] === 'login') {
+
+ $record = null;
+
+ $addon_auth = array(
+ 'username' => trim($_POST['username']),
+ 'password' => trim($_POST['password']),
+ 'authenticated' => 0,
+ 'user_record' => null
+ );
+
+ /**
+ *
+ * A plugin indicates successful login by setting 'authenticated' to non-zero value and returning a user record
+ * Plugins should never set 'authenticated' except to indicate success - as hooks may be chained
+ * and later plugins should not interfere with an earlier one that succeeded.
+ *
+ */
+
+ call_hooks('authenticate', $addon_auth);
+
+ if(($addon_auth['authenticated']) && (count($addon_auth['user_record']))) {
+ $record = $addon_auth['user_record'];
+ }
+ else {
+
+ // process normal login request
+
+ $r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey`
+ FROM `user` WHERE ( `email` = '%s' OR `nickname` = '%s' )
+ AND `password` = '%s' AND `blocked` = 0 AND `account_expired` = 0 AND `verified` = 1 LIMIT 1",
+ dbesc(trim($_POST['username'])),
+ dbesc(trim($_POST['username'])),
+ dbesc($encrypted)
+ );
+ if(count($r))
+ $record = $r[0];
+ }
+
+ if((! $record) || (! count($record))) {
+ logger('authenticate: failed login attempt: ' . notags(trim($_POST['username'])));
notice( t('Login failed.') . EOL );
- goaway($a->get_baseurl());
+ goaway(z_root());
}
- $_SESSION['uid'] = $r[0]['uid'];
- $_SESSION['theme'] = $r[0]['theme'];
- $_SESSION['authenticated'] = 1;
- $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $r[0]['nickname'];
-
- notice( t("Welcome back ") . $r[0]['username'] . EOL);
- $a->user = $r[0];
- if(strlen($a->user['timezone']))
- date_default_timezone_set($a->user['timezone']);
-
- $r = q("SELECT * FROM `contact` WHERE `uid` = %s AND `self` = 1 LIMIT 1",
- intval($_SESSION['uid']));
- if(count($r)) {
- $a->cid = $r[0]['id'];
- $_SESSION['cid'] = $a->cid;
- }
+ // if we haven't failed up this point, log them in.
+ authenticate_success($record, true, true);
}
}