]> git.mxchange.org Git - friendica.git/blobdiff - include/auth.php
refactor openid logins/registrations
[friendica.git] / include / auth.php
old mode 100644 (file)
new mode 100755 (executable)
index e22651c..faf9221
 <?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']);
-               $_SESSION['sysmsg'] = "Logged out." . EOL;
-               goaway($a->get_baseurl());
+
+
+
+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 = $r[0];
+               }
        }
+
        if(x($_SESSION,'uid')) {
-               $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
-                       intval($_SESSION['uid']));
-               if($r === NULL || (! count($r))) {
-                       goaway($a->get_baseurl());
+
+               // 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());
                }
-               $a->user = $r[0];
-               if(strlen($a->user['timezone']))
-                       date_default_timezone_set($a->user['timezone']);
 
+               $r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey` 
+               FROM `user` WHERE `uid` = %d AND `blocked` = 0 AND `account_expired` = 0 AND `verified` = 1 LIMIT 1",
+                       intval($_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']);
-       $encrypted = hash('whirlpool',trim($_POST['password']));
-
-       if((x($_POST,'auth-params')) && $_POST['auth-params'] == 'login') {
-               $r = q("SELECT * FROM `user` 
-                       WHERE `email` = '%s' AND `password` = '%s' LIMIT 1",
-                       dbesc(trim($_POST['login-name'])),
-                       dbesc($encrypted));
-               if(($r === false) || (! count($r))) {
-                       $_SESSION['sysmsg'] = 'Login failed.' . EOL ;
-                       goaway($a->get_baseurl());
+
+       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 = $a->get_baseurl(true) . '/openid'; 
+                       goaway($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(z_root());
                }
-               $_SESSION['uid'] = $r[0]['uid'];
-               $_SESSION['admin'] = $r[0]['admin'];
-               $_SESSION['authenticated'] = 1;
-               if(x($r[0],'nickname'))
-                       $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $r[0]['nickname'];
-               else
-                       $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $r[0]['uid'];
-
-               $_SESSION['sysmsg'] = "Welcome back " . $r[0]['username'] . EOL;
-               $a->user = $r[0];
-               if(strlen($a->user['timezone']))
-                       date_default_timezone_set($a->user['timezone']);
 
+               // if we haven't failed up this point, log them in.
+
+               authenticate_success($record, true, true);
        }
 }
 
-// Returns an array of group names this contact is a member of.
-// Since contact-id's are unique and each "belongs" to a given user uid,
-// this array will only contain group names related to the uid of this
+// Returns an array of group id's this contact is a member of.
+// This array will only contain group id's related to the uid of this
 // DFRN contact. They are *not* neccessarily unique across the entire site. 
 
 
 if(! function_exists('init_groups_visitor')) {
 function init_groups_visitor($contact_id) {
        $groups = array();
-       $r = q("SELECT `group_member`.`gid`, `group`.`name` 
-               FROM `group_member` LEFT JOIN `group` ON `group_member`.`gid` = `group`.`id` 
-               WHERE `group_member`.`contact-id` = %d ",
+       $r = q("SELECT `gid` FROM `group_member` 
+               WHERE `contact-id` = %d ",
                intval($contact_id)
        );
        if(count($r)) {
                foreach($r as $rr)
-                       $groups[] = $rr['name'];
+                       $groups[] = $rr['gid'];
        }
        return $groups;
 }}