From 5c8956265048aee726f236bd83b4988a592242f4 Mon Sep 17 00:00:00 2001
From: LouisLam <louislam@users.noreply.github.com>
Date: Sun, 10 Oct 2021 02:23:27 +0800
Subject: [PATCH 1/2] not allow lower than 20s for demo mode

---
 server/model/monitor.js | 8 ++++++++
 server/server.js        | 3 ++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/server/model/monitor.js b/server/model/monitor.js
index a50baccfd..b7b24971b 100644
--- a/server/model/monitor.js
+++ b/server/model/monitor.js
@@ -11,6 +11,7 @@ const { tcping, ping, dnsResolve, checkCertificate, checkStatusCode, getTotalCli
 const { R } = require("redbean-node");
 const { BeanModel } = require("redbean-node/dist/bean-model");
 const { Notification } = require("../notification");
+const { demoMode } = require("../server");
 const version = require("../../package.json").version;
 
 /**
@@ -334,6 +335,13 @@ class Monitor extends BeanModel {
             previousBeat = bean;
 
             if (! this.isStop) {
+
+                if (demoMode) {
+                    if (beatInterval < 20) {
+                        beatInterval = 20;
+                    }
+                }
+
                 this.heartbeatInterval = setTimeout(beat, beatInterval * 1000);
             }
 
diff --git a/server/server.js b/server/server.js
index ddd686951..984e73ad1 100644
--- a/server/server.js
+++ b/server/server.js
@@ -66,12 +66,13 @@ const sslCert = process.env.SSL_CERT || args["ssl-cert"] || undefined;
 
 // Demo Mode?
 const demoMode = args["demo"] || false;
+exports.demoMode = demoMode;
 
 if (demoMode) {
     console.log("==== Demo Mode ====");
 }
 
-console.log("Creating express and socket.io instance")
+console.log("Creating express and socket.io instance");
 const app = express();
 
 let server;

From 56ae6f6117809d5d4c552ce3a5cfb50abed7b388 Mon Sep 17 00:00:00 2001
From: LouisLam <louislam@users.noreply.github.com>
Date: Sun, 10 Oct 2021 02:36:20 +0800
Subject: [PATCH 2/2] fix demoMode export

---
 server/model/monitor.js |  1 +
 server/server.js        | 16 ++++++++--------
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/server/model/monitor.js b/server/model/monitor.js
index b7b24971b..3c9e79b54 100644
--- a/server/model/monitor.js
+++ b/server/model/monitor.js
@@ -338,6 +338,7 @@ class Monitor extends BeanModel {
 
                 if (demoMode) {
                     if (beatInterval < 20) {
+                        console.log("beat interval too low, reset to 20s");
                         beatInterval = 20;
                     }
                 }
diff --git a/server/server.js b/server/server.js
index 984e73ad1..cdbb447a7 100644
--- a/server/server.js
+++ b/server/server.js
@@ -1,12 +1,18 @@
 console.log("Welcome to Uptime Kuma");
+const args = require("args-parser")(process.argv);
+const { sleep, debug, getRandomInt } = require("../src/util");
+
+debug(args);
 
 if (! process.env.NODE_ENV) {
     process.env.NODE_ENV = "production";
 }
 
-console.log("Node Env: " + process.env.NODE_ENV);
+// Demo Mode?
+const demoMode = args["demo"] || false;
+exports.demoMode = demoMode;
 
-const { sleep, debug, TimeLogger, getRandomInt } = require("../src/util");
+console.log("Node Env: " + process.env.NODE_ENV);
 
 console.log("Importing Node libraries");
 const fs = require("fs");
@@ -50,8 +56,6 @@ const { basicAuth } = require("./auth");
 const { login } = require("./auth");
 const passwordHash = require("./password-hash");
 
-const args = require("args-parser")(process.argv);
-
 const checkVersion = require("./check-version");
 console.info("Version: " + checkVersion.version);
 
@@ -64,10 +68,6 @@ const port = parseInt(process.env.PORT || args.port || 3001);
 const sslKey = process.env.SSL_KEY || args["ssl-key"] || undefined;
 const sslCert = process.env.SSL_CERT || args["ssl-cert"] || undefined;
 
-// Demo Mode?
-const demoMode = args["demo"] || false;
-exports.demoMode = demoMode;
-
 if (demoMode) {
     console.log("==== Demo Mode ====");
 }