Sanitizer: add a getParam call to return the raw param if present.

src/Xibo/Support/Sanitizer/RespectSanitizer.php

@@ -73,6 +73,7 @@ private function mergeOptions($options, $key)
      * Return a failure
      * @param $options
      * @throws \Xibo\Support\Exception\InvalidArgumentException
+     * @return void|\Exception
      */
     private function failure($options)
     {
@@ -103,6 +104,23 @@ private function failureNotExists($options)
         return $this->failure($options);
     }
 
+    /** @inheritDoc */
+    public function getParam($key, $options = [])
+    {
+        $options = $this->mergeOptions($options, $key);
+
+        if (!$this->collection->has($key)) {
+            return $this->failureNotExists($options);
+        }
+
+        $value = $this->collection->get($key);
+        if ($value === null || ($value === '' && $options['defaultOnEmptyString'])) {
+            return $this->failureNotExists($options);
+        }
+
+        return $value;
+    }
+
     /**
      * @inheritdoc
      */

src/Xibo/Support/Sanitizer/SanitizerInterface.php

@@ -25,6 +25,14 @@ public function setCollection($collection);
      */
     public function setDefaultOptions($options);
 
+    /**
+     * Get the raw param from the collection
+     * @param string $key The name of the key
+     * @param array $options Options to apply to the operation
+     * @return mixed
+     */
+    public function getParam($key, $options = []);
+
     /**
      * @param string $key The name of the key
      * @param array $options Options to apply to the operation