[Web] CSS fixes; Add OAUTH2_FORGET_SESSION_AFTER_LOGIN to vars.inc.php (wip); Do not run initdb on non-master cow

data/web/inc/init_db.inc.php

@@ -12,6 +12,14 @@ function init_db_schema() {
       if ($stmt->fetch(PDO::FETCH_ASSOC)['version'] == $db_version) {
         return true;
       }
+      if (!preg_match('/y|yes/i', getenv('MASTER'))) {
+        $_SESSION['return'][] = array(
+          'type' => 'warning',
+          'log' => array(__FUNCTION__),
+          'msg' => 'Database not initialized: not running db_init on slave.'
+        );
+        return true;
+      }
     }
 
     $views = array(

data/web/inc/prerequisites.inc.php

@@ -3,6 +3,7 @@
 // Slave does not serve UI
 if (!preg_match('/y|yes/i', getenv('MASTER'))) {
   header('Location: /SOGo', true, 307);
+  exit;
 }
 
 require_once $_SERVER['DOCUMENT_ROOT'] . '/inc/vars.inc.php';

data/web/inc/vars.inc.php

@@ -132,6 +132,8 @@ $ANONYMIZE_IPS = true;
 // OAuth2 settings
 $REFRESH_TOKEN_LIFETIME = 2678400;
 $ACCESS_TOKEN_LIFETIME = 86400;
+// Logout from mailcow after first OAuth2 session profile request
+$OAUTH2_FORGET_SESSION_AFTER_LOGIN = false;
 
 // MAILBOX_DEFAULT_ATTRIBUTES define default attributes for new mailboxes
 // These settings will not change existing mailboxes
@@ -155,6 +157,8 @@ $MAILBOX_DEFAULT_ATTRIBUTES['quarantine_notification'] = 'hourly';
 // Check dovecot.conf for further changes (e.g. shared namespace)
 $MAILBOX_DEFAULT_ATTRIBUTES['mailbox_format'] = 'maildir:';
 
+
+
 // Set visible Rspamd maps in mailcow UI, do not change unless you know what you are doing
 $RSPAMD_MAPS = array(
   'regex' => array(