M3 Integration fixes

Modules/M3/Http/Middleware/BasicAuth.php

@@ -27,26 +27,26 @@ class BasicAuth
         }
 
         $handle = fopen($passwordFile, 'rb');
-        if ($handle === false) {
-            return false;
-        }
+        $valid = false;
 
-        try {
-            while (($line = fgets($handle)) !== false) {
-                $parts = explode(':', trim($line), 2);
-                if (count($parts) !== 2 || ! hash_equals($parts[0], $login)) {
-                    continue;
+        if ($handle !== false) {
+            try {
+                while (($line = fgets($handle)) !== false) {
+                    $parts = explode(':', trim($line), 2);
+                    if (count($parts) !== 2 || ! hash_equals($parts[0], $login)) {
+                        continue;
+                    }
+
+                    $storedHash = trim($parts[1]);
+                    $valid = $storedHash !== '' && password_verify($password, $storedHash);
+                    break;
                 }
-
-                $storedHash = trim($parts[1]);
-
-                return $storedHash !== '' && password_verify($password, $storedHash);
+            } finally {
+                fclose($handle);
             }
-        } finally {
-            fclose($handle);
         }
 
-        return false;
+        return $valid;
     }
 
     private function unauthorized(): Response