From f34a60665f0787844d951cc6d9b0f2fd68bd4af8 Mon Sep 17 00:00:00 2001
From: ansuz <git@ansuz.xyz>
Date: Tue, 22 Mar 2022 14:27:07 +0530
Subject: [PATCH] check that the server is running at least NodeJS v16.14.2

---
 lib/env.js          | 21 +++++++++++++++++++++
 server.js           |  8 ++++++++
 www/checkup/main.js | 15 +++++++++++++++
 3 files changed, 44 insertions(+)

diff --git a/lib/env.js b/lib/env.js
index 64280193b..1923dcc9e 100644
--- a/lib/env.js
+++ b/lib/env.js
@@ -27,6 +27,25 @@ var deriveSandboxOrigin = function (unsafe, port) {
     return url.origin;
 };
 
+var isRecentVersion = function () {
+    var V = process.version;
+    if (typeof(V) !== 'string') { return false; }
+    var parts = V.replace(/^v/, '').split('.').map(Number);
+    if (parts.length < 3) { return false; }
+    if (!parts.every(n => typeof(n) === 'number' && !isNaN(n))) {
+        return false;
+    }
+    if (parts[0] < 16) { return false; }
+    if (parts[0] > 16) { return true; }
+
+    // v16
+    if (parts[1] < 14) { return false; }
+    if (parts[1] > 14) { return true; }
+    if (parts[2] >= 2) { return true; }
+
+    return false;
+};
+
 module.exports.create = function (config) {
     var httpUnsafeOrigin = canonicalizeOrigin(config.httpUnsafeOrigin);
 
@@ -53,6 +72,8 @@ module.exports.create = function (config) {
         NO_SANDBOX: NO_SANDBOX,
         httpSafePort: httpSafePort,
 
+        shouldUpdateNode: !isRecentVersion(),
+
         version: Package.version,
         installMethod: config.installMethod || undefined,
 
diff --git a/server.js b/server.js
index 73e4d2b00..80df1b526 100644
--- a/server.js
+++ b/server.js
@@ -236,6 +236,7 @@ var serveConfig = makeRouteCache(function (host) {
             httpSafeOrigin: Env.httpSafeOrigin,
             disableEmbedding: Env.disableEmbedding,
             fileHost: Env.fileHost,
+            shouldUpdateNode: Env.shouldUpdateNode || undefined,
         }, null, '\t'),
         '});'
     ].join(';\n')
@@ -325,6 +326,13 @@ nThen(function (w) {
         Env.Log = _log;
         config.log = _log;
 
+        if (Env.shouldUpdateNode) {
+            Env.Log.warn("NODEJS_OLD_VERSION", {
+                message: `The CryptPad development team recommends using at least NodeJS v16.14.2`,
+                currentVersion: process.version,
+            });
+        }
+
         if (Env.OFFLINE_MODE) { return; }
         if (Env.websocketPath) { return; }
 
diff --git a/www/checkup/main.js b/www/checkup/main.js
index 76f6b88d7..204c9082e 100644
--- a/www/checkup/main.js
+++ b/www/checkup/main.js
@@ -1310,6 +1310,21 @@ define([
         });
     });
 
+    assert(function (cb, msg) {
+        msg.appendChild(h('span', [
+            "The CryptPad development team recommends running at least NodeJS ",
+            code("v16.14.2"),
+            ". Which can be installed and updated via ",
+            h('a', {
+                href: 'https://github.com/nvm-sh/nvm',
+                rel: 'noopener noreferer',
+                target: '_blank',
+            }, 'NVM'),
+            '.',
+        ]));
+        cb(!ApiConfig.shouldUpdateNode);
+    });
+
     var serverToken;
     Tools.common_xhr('/', function (xhr) {
         serverToken = xhr.getResponseHeader('server');