Added option to define server groups required to use group assigner (#139)

src/assigner.php

@@ -6,10 +6,15 @@ use Wruczek\TSWebsite\Utils\TemplateUtils;
 
 require_once __DIR__ . "/private/php/load.php";
 
-$data = ["isLoggedIn" => Auth::isLoggedIn()];
+$data = [
+    "isLoggedIn" => Auth::isLoggedIn()
+];
 
 if (Auth::isLoggedIn()) {
-    if (isset($_POST["assigner"])) {
+    $canUseAssigner = Assigner::canUseAssigner();
+    $data["canUseAssigner"] = $canUseAssigner;
+
+    if (isset($_POST["assigner"]) && $canUseAssigner) {
         $groups = array_keys($_POST["assigner"]); // get all group ids
         $groups = array_filter($groups, "is_int"); // only keep integers
 

src/installer/dbinstall_mysql.sql

@@ -35,7 +35,8 @@ INSERT INTO `DBPREFIXconfig` (`identifier`, `type`, `value`, `user_editable`) VA
 ('cache_channelgroups', 'INT', '60', 1),
 ('adminstatus_offlinehiddenbydefault', 'BOOL', 'false', 1),
 ('imprint_enabled', 'BOOL', 'false', 1),
-('imprint_url', 'STRING', 'imprint.php', 1);
+('imprint_url', 'STRING', 'imprint.php', 1),
+('assigner_required_sgids', 'JSON', '[]', 1);
 
 DROP TABLE IF EXISTS `DBPREFIXfaq`;
 CREATE TABLE `DBPREFIXfaq` (

src/private/php/Assigner.php

@@ -133,4 +133,34 @@ class Assigner {
         return 0;
     }
 
+    public static function getRequiredSgids() {
+        return Config::get("assigner_required_sgids");
+    }
+
+    public static function canUseAssigner() {
+        // if there are no required sgids, the user can use assigner and
+        // we can skip the other, more expensive checks that will require
+        // fetching user groups from TS3
+        if (empty(self::getRequiredSgids())) {
+            return true;
+        }
+
+        $userGroups = Auth::getUserServerGroupIds();
+        return self::canUseAssignerSgArray($userGroups);
+    }
+
+    public static function canUseAssignerSgArray(array $serverGroups) {
+        // user needs to be in at least one of those groups to be able
+        // to use group assigner
+        $requiredSgid = self::getRequiredSgids();
+
+        foreach ($requiredSgid as $sgid) {
+            if (in_array($sgid, $serverGroups, false)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
 }

src/private/templates/assigner.latte

@@ -23,6 +23,10 @@
                 <div class="alert alert-info">
                     <i class="fas fa-info-circle"></i>{_"ASSIGNER_NOT_CONFIGURED"}
                 </div>
+            {elseif !$canUseAssigner}
+                <div class="alert alert-danger">
+                    <i class="fa fa-exclamation-circle"></i>{_"ASSIGNER_NO_REQUIRED_GROUPS"}
+                </div>
             {else}
                 {ifset $groupChangeStatus}
                     {if $groupChangeStatus === 0} {* saved *}