initial commit

apps/OpenSignServer/cloud/parsefunction/pdf/customSignPdf/getPagesDictionaryRef.js

@@ -0,0 +1,18 @@
+import SignPdfError from './SignPdfError.js';
+
+/**
+ * @param {Object} info As extracted from readRef()
+ */
+
+export default function getPagesDictionaryRef(info) {
+    const pagesRefRegex = /\/Pages\s+(\d+\s+\d+\s+R)/g;
+    const match = pagesRefRegex.exec(info.root);
+    if (match === null) {
+        throw new SignPdfError(
+            'Failed to find the pages descriptor. This is probably a problem in node-signpdf.',
+            SignPdfError.TYPE_PARSE,
+        );
+    }
+
+    return match[1];
+}