Validate callback type (#10)

willdurand · Jan 30, 2022 · 738c36e · 738c36e
1 parent 4e9c366
commit 738c36e
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diff --git a/src/JsonpCallbackValidator.php b/src/JsonpCallbackValidator.php
@@ -64,6 +64,10 @@ class JsonpCallbackValidator
      */
     public static function validate($callback)
     {
+        if (!is_string($callback)) {
+            return false;
+        }
+
         foreach (explode('.', $callback) as $identifier) {
             if (!preg_match(self::$regexp, $identifier)) {
                 return false;

diff --git a/tests/JsonpCallbackValidatorTest.php b/tests/JsonpCallbackValidatorTest.php
@@ -69,6 +69,8 @@ public static function dataProviderForTestValidate()
             array("array_of_functions['k'ey'']",  self::IS_INVALID),
             array("array_of_functions[''']",      self::IS_INVALID),
             array("array_of_functions['\'']",     self::IS_VALID),
+            array([],                             self::IS_INVALID),
+            array(new \stdClass(),                self::IS_INVALID),
         );
     }