[Improvement]: Add possibility to pass metadata to gotenberg-chromium…

… processor (#66)

* Pass metadata to gotenberg-chromium processor

* Add backwards compatibility layer for gotenberg-php v1

* Check the existence of metadata only once

Co-authored-by: Sebastian Blank <sebastian.bl@gmx.de>

* Just use formValue to support both v1 and v2

Co-authored-by: JiaJia Ji <kingjia90@gmail.com>

* Remove empty new line

* Revert "Remove empty new line"

This reverts commit e057251.

* Revert "Just use formValue to support both v1 and v2"

This reverts commit 437b18f.

* Update minimum versions for gotenberg/gotenberg-php dependency

* Ignore phpstan error because code should not be reachable when formValue is protected

* Try checking formValue with is_callable

Co-authored-by: Sebastian Blank <sebastian.bl@gmx.de>

* Pass metadata to gotenberg-chromium on version > 2.2

---------

Co-authored-by: Sebastian Blank <sebastian.bl@gmx.de>
Co-authored-by: JiaJia Ji <kingjia90@gmail.com>

composer.json

@@ -20,7 +20,7 @@
   "require-dev": {
     "phpstan/phpstan": "^1.10.5",
     "phpstan/phpstan-symfony": "^1.2.20",
-    "gotenberg/gotenberg-php": "^1.0 || ^2.0",
+    "gotenberg/gotenberg-php": "^1.1.8 || ^2.2",
     "chrome-php/chrome": "^1.8",
     "codeception/codeception": "^5.0.3",
     "codeception/module-symfony": "^3.1.0",

src/Processor/Gotenberg.php

@@ -166,6 +166,11 @@ public function getPdfFromString(string $html, array $params = [], bool $returnF
             $chromium->extraHttpHeaders($params['extraHttpHeaders']);
         }
 
+        // metadata is only passed on gotenberg-php > 2.2
+        if (isset($params['metadata']) && method_exists($chromium, 'metadata')) {
+            $chromium->metadata($params['metadata']);
+        }
+
         $request = $chromium->outputFilename($tempFileName)->html(Stream::string('processor.html', $html));
 
         if ($returnFilePath) {