From 3b6c8dce2fce0a162f0008cef4a9018751781d82 Mon Sep 17 00:00:00 2001
From: John McLear <john@mclear.co.uk>
Date: Wed, 4 Nov 2020 15:04:36 +0000
Subject: [PATCH] hook, needs docs

---
 src/node/utils/ExportHtml.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/node/utils/ExportHtml.js b/src/node/utils/ExportHtml.js
index 2c5a2c213..665e3d7eb 100644
--- a/src/node/utils/ExportHtml.js
+++ b/src/node/utils/ExportHtml.js
@@ -498,6 +498,11 @@ exports.getPadHTMLDocument = async function (padId, revNum)
 
   let html = await getPadHTML(pad, revNum);
 
+  let exportHTMLAdditionalContent = await hooks.aCallAll("exportHTMLAdditionalContent", padId);
+  exportHTMLAdditionalContent.forEach(function(hookHtml){
+    html += hookHtml;
+  });
+
   return eejs.require("ep_etherpad-lite/templates/export_html.html", {
     body: html,
     padId: Security.escapeHTML(padId),