Update to 1.23.0-beta.1

Update dependencies
Translations Update from Weblate (#3536 )
2025-09-10 12:56:13 +08:00 · 2023-08-08 18:44:11 +08:00 · 2023-08-08 18:43:45 +08:00 · 2023-08-08 18:32:26 +08:00 · 2023-08-08 18:29:48 +08:00 · 2023-08-08 03:57:59 +08:00
217 changed files with 16291 additions and 22013 deletions
--- a/.devcontainer/README.md
+++ b/.devcontainer/README.md
@@ -0,0 +1,28 @@
+# Codespaces
+
+You can modifiy Uptime Kuma in your browser without setting up a local development.
+
+![image](https://github.com/louislam/uptime-kuma/assets/1336778/31d9f06d-dd0b-4405-8e0d-a96586ee4595)
+
+1. Click `Code` -> `Create codespace on master`
+2. Wait a few minutes until you see there are two exposed ports
+3. Go to the `3000` url, see if it is working 
+
+![image](https://github.com/louislam/uptime-kuma/assets/1336778/909b2eb4-4c5e-44e4-ac26-6d20ed856e7f)
+
+## Frontend
+
+Since the frontend is using [Vite.js](https://vitejs.dev/), all changes in this area will be hot-reloaded.
+You don't need to restart the frontend, unless you try to add a new frontend dependency.
+
+## Backend
+
+The backend does not automatically hot-reload.
+You will need to restart the backend after changing something using these steps:
+
+1. Click `Terminal`
+2. Click `Codespaces: server-dev` in the right panel
+3. Press `Ctrl + C` to stop the server
+4. Press `Up` to run `npm run start-server-dev`
+
+![image](https://github.com/louislam/uptime-kuma/assets/1336778/e0c0a350-fe46-4588-9f37-e053c85834d1)
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,22 @@
+{
+    "image": "mcr.microsoft.com/devcontainers/javascript-node:dev-18-bookworm",
+    "features": {
+        "ghcr.io/devcontainers/features/github-cli:1": {}
+    },
+    "updateContentCommand": "npm ci",
+    "postCreateCommand": "",
+    "postAttachCommand": {
+        "frontend-dev": "npm run start-frontend-devcontainer",
+        "server-dev": "npm run start-server-dev",
+        "open-port": "gh codespace ports visibility 3001:public -c $CODESPACE_NAME"
+    },
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "streetsidesoftware.code-spell-checker",
+                "dbaeumer.vscode-eslint"
+            ]
+        }
+    },
+    "forwardPorts": [3000, 3001]
+}
--- a/.dockerignore
+++ b/.dockerignore
@@ -18,6 +18,7 @@ README.md
 .vscode
 .eslint*
 .stylelint*
+/.devcontainer
 /.github
 yarn.lock
 app.json
@@ -35,6 +36,7 @@ tsconfig.json
 /extra/healthcheck
 extra/exe-builder

+
 ### .gitignore content (commented rules are duplicated)

 #node_modules
--- a/.github/ISSUE_TEMPLATE/ask-for-help.yaml
+++ b/.github/ISSUE_TEMPLATE/ask-for-help.yaml
@@ -26,6 +26,12 @@ body:
      label: "📝 Describe your problem"
      description: "Please walk us through it step by step."
      placeholder: "Describe what are you asking for..."
+  - type: textarea
+    id: error-msg
+    validations:
+      required: false
+    attributes:
+      label: "📝 Error Message(s) or Log"
  - type: input
    id: uptime-kuma-version
    attributes:
@@ -38,7 +44,7 @@ body:
    id: operating-system
    attributes:
      label: "💻 Operating System and Arch"
-      description: "Which OS is your server/device running on?"
+      description: "Which OS is your server/device running on? (For Replit, please do not report this bug)"
      placeholder: "Ex. Ubuntu 20.04 x86"
    validations:
      required: true
@@ -46,7 +52,7 @@ body:
    id: browser-vendor
    attributes:
      label: "🌐 Browser"
-      description: "Which browser are you running on?"
+      description: "Which browser are you running on? (For Replit, please do not report this bug)"
      placeholder: "Ex. Google Chrome 95.0.4638.69"
    validations:
      required: true
--- a/.github/ISSUE_TEMPLATE/bug_report.yaml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yaml
@@ -61,8 +61,8 @@ body:
    id: operating-system
    attributes:
      label: "💻 Operating System and Arch"
-      description: "Which OS is your server/device running on?"
-      placeholder: "Ex. Ubuntu 20.04 x86"
+      description: "Which OS is your server/device running on? (For Replit, please do not report this bug)"
+      placeholder: "Ex. Ubuntu 20.04 x64 "
    validations:
      required: true
  - type: input
--- a/.github/config/exclude.txt
+++ b/.github/config/exclude.txt
@@ -0,0 +1 @@
+# This is a .gitignore style file for 'GrantBirki/json-yaml-validate' Action workflow
--- a/.github/workflows/auto-test.yml
+++ b/.github/workflows/auto-test.yml
@@ -1,4 +1,4 @@
-# This workflow will do a clean install of node dependencies, cache/restore them, build the source code and run tests across different versions of node
+# This workflow will do a clean install of node dependencies, build the source code and run tests across different versions of node
 # For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions

 name: Auto Test
@@ -21,8 +21,8 @@ jobs:

    strategy:
      matrix:
-        os: [macos-latest, ubuntu-latest, windows-latest]
-        node: [ 14, 16, 18, 19 ]
+        os: [macos-latest, ubuntu-latest, windows-latest, ARM64]
+        node: [ 14, 20 ]
        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/

    steps:
@@ -33,7 +33,7 @@ jobs:
      uses: actions/setup-node@v3
      with:
        node-version: ${{ matrix.node }}
-        cache: 'npm'
+    - run: npm install npm@latest -g
    - run: npm install
    - run: npm run build
    - run: npm test
@@ -41,6 +41,29 @@ jobs:
        HEADLESS_TEST: 1
        JUST_FOR_TEST: ${{ secrets.JUST_FOR_TEST }}

+  # As a lot of dev dependencies are not supported on ARMv7, we have to test it separately and just test if `npm ci --production` works
+  armv7-simple-test:
+    needs: [ check-linters ]
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 15
+
+    strategy:
+      matrix:
+        os: [ ARMv7 ]
+        node: [ 14.21.3, 20.5.0 ]
+        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
+
+    steps:
+      - run: git config --global core.autocrlf false  # Mainly for Windows
+      - uses: actions/checkout@v3
+
+      - name: Use Node.js ${{ matrix.node }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node }}
+      - run: npm install npm@latest -g
+      - run: npm ci --production
+
  check-linters:
    runs-on: ubuntu-latest

@@ -52,7 +75,6 @@ jobs:
      uses: actions/setup-node@v3
      with:
        node-version: 14
-        cache: 'npm'
    - run: npm install
    - run: npm run lint

@@ -67,7 +89,6 @@ jobs:
      uses: actions/setup-node@v3
      with:
        node-version: 14
-        cache: 'npm'
    - run: npm install
    - run: npm run build
    - run: npm run cy:test
@@ -83,7 +104,6 @@ jobs:
      uses: actions/setup-node@v3
      with:
        node-version: 14
-        cache: 'npm'
    - run: npm install
    - run: npm run build
    - run: npm run cy:run:unit
--- a/.github/workflows/json-yaml-validate.yml
+++ b/.github/workflows/json-yaml-validate.yml
@@ -0,0 +1,26 @@
+name: json-yaml-validate 
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pull-requests: write # enable write permissions for pull request comments
+
+jobs:
+  json-yaml-validate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: json-yaml-validate
+        id: json-yaml-validate
+        uses: GrantBirki/json-yaml-validate@v1.3.0
+        with:
+          comment: "true" # enable comment mode
+          exclude_file: ".github/config/exclude.txt" # gitignore style file for exclusions
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,6 @@ cypress/screenshots

 extra/exe-builder/bin
 extra/exe-builder/obj
+
+.vs
+.vscode
--- a/.stylelintrc
+++ b/.stylelintrc
@@ -10,6 +10,7 @@
        "color-function-notation": "legacy",
        "shorthand-property-no-redundant-values": null,
        "color-hex-length": null,
-        "declaration-block-no-redundant-longhand-properties": null
+        "declaration-block-no-redundant-longhand-properties": null,
+        "at-rule-no-unknown": null
    }
 }
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -34,30 +34,30 @@ Yes or no, it depends on what you will try to do. Since I don't want to waste yo

 Here are some references:

-✅ Usually Accept:
+### ✅ Usually accepted:
 - Bug fix
 - Security fix
 - Adding notification providers
- Adding new language files (You should go to https://weblate.kuma.pet for existing languages)
+- Adding new language files (see [these instructions](https://github.com/louislam/uptime-kuma/blob/master/src/lang/README.md))
 - Adding new language keys: `$t("...")`

-⚠️ Discussion First
+### ⚠️ Discussion required:
 - Large pull requests
 - New features

-❌ Won't Merge
- A dedicated pr for translating existing languages (You can now translate on https://weblate.kuma.pet) 
- Do not pass auto test
+### ❌ Won't be merged:
+- A dedicated pr for translating existing languages (see [these instructions](https://github.com/louislam/uptime-kuma/blob/master/src/lang/README.md))
+- Do not pass the auto test
 - Any breaking changes
- Duplicated pull request
+- Duplicated pull requests
 - Buggy
 - UI/UX is not close to Uptime Kuma 
- Existing logic is completely modified or deleted for no reason
- A function that is completely out of scope
- Convert existing code into other programming languages
- Unnecessary large code changes (Hard to review, causes code conflicts to other pull requests)
+- Modifications or deletions of existing logic without a valid reason.
+- Adding functions that is completely out of scope
+- Converting existing code into other programming languages
+- Unnecessarily large code changes that are hard to review and cause conflicts with other PRs.

-The above cases cannot cover all situations.
+The above cases may not cover all possible situations.

 I (@louislam) have the final say. If your pull request does not meet my expectations, I will reject it, no matter how much time you spend on it. Therefore, it is essential to have a discussion beforehand.

@@ -106,11 +106,11 @@ I personally do not like something that requires so many configurations before y

 ## Tools

- Node.js >= 14
- NPM >= 8.5
- Git
- IDE that supports ESLint and EditorConfig (I am using IntelliJ IDEA)
- A SQLite GUI tool (SQLite Expert Personal is suggested)
+- [`Node.js`](https://nodejs.org/) >= 14
+- [`npm`](https://www.npmjs.com/) >= 8.5
+- [`git`](https://git-scm.com/)
+- IDE that supports [`ESLint`](https://eslint.org/) and EditorConfig (I am using [`IntelliJ IDEA`](https://www.jetbrains.com/idea/))
+- A SQLite GUI tool (f.ex. [`SQLite Expert Personal`](https://www.sqliteexpert.com/download.html) or [`DBeaver Community`](https://dbeaver.io/download/))

 ## Install Dependencies for Development

@@ -218,7 +218,17 @@ If for maybe security reasons, a library must be updated. Then you must need to

 ## Translations

-Please read: https://github.com/louislam/uptime-kuma/tree/master/src/languages
+Please add **all** the strings which are translatable to `src/lang/en.json` (If translation keys are ommited, they can not be translated).
+
+**Don't include any other languages in your inital Pull-Request** (even if this is your mother tounge), to avoid merge-conflicts between weblate and `master`.  
+The translations can then (after merging a PR into `master`) be translated by awesome people donating their language-skills.
+
+If you want to help by translating Uptime Kuma into your language, please visit the [instructions on how to translate using weblate](https://github.com/louislam/uptime-kuma/blob/master/src/lang/README.md).
+
+## Spelling & Grammar
+
+Feel free to correct the grammar in the documentation or code.
+My mother language is not english and my grammar is not that great.

 ## Wiki

--- a/README.md
+++ b/README.md
@@ -1,16 +1,16 @@
+<div align="center" width="100%">
+    <img src="./public/icon.svg" width="128" alt="" />
+</div>
+
 # Uptime Kuma

+Uptime Kuma is an easy-to-use self-hosted monitoring tool.
+
 <a target="_blank" href="https://github.com/louislam/uptime-kuma"><img src="https://img.shields.io/github/stars/louislam/uptime-kuma" /></a> <a target="_blank" href="https://hub.docker.com/r/louislam/uptime-kuma"><img src="https://img.shields.io/docker/pulls/louislam/uptime-kuma" /></a> <a target="_blank" href="https://hub.docker.com/r/louislam/uptime-kuma"><img src="https://img.shields.io/docker/v/louislam/uptime-kuma/latest?label=docker%20image%20ver." /></a> <a target="_blank" href="https://github.com/louislam/uptime-kuma"><img src="https://img.shields.io/github/last-commit/louislam/uptime-kuma" /></a>  <a target="_blank" href="https://opencollective.com/uptime-kuma"><img src="https://opencollective.com/uptime-kuma/total/badge.svg?label=Open%20Collective%20Backers&color=brightgreen" /></a>
 [![GitHub Sponsors](https://img.shields.io/github/sponsors/louislam?label=GitHub%20Sponsors)](https://github.com/sponsors/louislam) <a href="https://weblate.kuma.pet/projects/uptime-kuma/uptime-kuma/">
 <img src="https://weblate.kuma.pet/widgets/uptime-kuma/-/svg-badge.svg" alt="Translation status" />
 </a>

-<div align="center" width="100%">
-    <img src="./public/icon.svg" width="128" alt="" />
-</div>
-
-Uptime Kuma is an easy-to-use self-hosted monitoring tool.
-
 <img src="https://user-images.githubusercontent.com/1336778/212262296-e6205815-ad62-488c-83ec-a5b0d0689f7c.jpg" width="700" alt="" />

 ## 🥔 Live Demo
@@ -23,7 +23,7 @@ It is a temporary live demo, all data will be deleted after 10 minutes. Use the

 ## ⭐ Features

-* Monitoring uptime for HTTP(s) / TCP / HTTP(s) Keyword / Ping / DNS Record / Push / Steam Game Server / Docker Containers
+* Monitoring uptime for HTTP(s) / TCP / HTTP(s) Keyword / HTTP(s) Json Query / Ping / DNS Record / Push / Steam Game Server / Docker Containers
 * Fancy, Reactive, Fast UI/UX
 * Notifications via Telegram, Discord, Gotify, Slack, Pushover, Email (SMTP), and [90+ notification services, click here for the full list](https://github.com/louislam/uptime-kuma/tree/master/src/components/notifications)
 * 20 second intervals
@@ -49,10 +49,14 @@ Uptime Kuma is now running on http://localhost:3001

 ### 💪🏻 Non-Docker

-Required Tools: 
- [Node.js](https://nodejs.org/en/download/) >= 14
+Requirements:
+- Platform
+  - ✅ Major Linux distros such as Debian, Ubuntu, CentOS, Fedora and ArchLinux etc.
+  - ✅ Windows 10 (x64), Windows Server 2012 R2 (x64) or higher
+  - ❌ Replit / Heroku
+- [Node.js](https://nodejs.org/en/download/) 14 / 16 / 18 / 20.4
 - [npm](https://docs.npmjs.com/cli/) >= 7
- [Git](https://git-scm.com/downloads) 
+- [Git](https://git-scm.com/downloads)
 - [pm2](https://pm2.keymetrics.io/) - For running Uptime Kuma in the background

 ```bash
@@ -67,7 +71,7 @@ npm run setup
 node server/server.js

 # (Recommended) Option 2. Run in background using PM2
-# Install PM2 if you don't have it: 
+# Install PM2 if you don't have it:
 npm install pm2 -g && pm2 install pm2-logrotate

 # Start Server
@@ -87,6 +91,10 @@ pm2 monit
 pm2 save && pm2 startup
 ```

+### Windows Portable (x64)
+
+https://github.com/louislam/uptime-kuma/files/11886108/uptime-kuma-win64-portable-1.0.1.zip
+
 ### Advanced Installation

 If you need more options or need to browse via a reverse proxy, please read:
@@ -144,17 +152,18 @@ Telegram Notification Sample:

 If you love this project, please consider giving me a ⭐.

-## 🗣️ Discussion
+## 🗣️ Discussion / Ask for Help

-### Issues Page
+⚠️ For any general or technical questions, please don't send me an email, as I am unable to provide support in that manner. I will not response if you asked such questions.

-You can discuss or ask for help in [issues](https://github.com/louislam/uptime-kuma/issues).
+I recommend using Google, GitHub Issues, or Uptime Kuma's Subreddit for finding answers to your question. If you cannot find the information you need, feel free to ask:

-### Subreddit
+- [GitHub Issues](https://github.com/louislam/uptime-kuma/issues)
+- [Subreddit r/Uptime kuma](https://www.reddit.com/r/UptimeKuma/)

 My Reddit account: [u/louislamlam](https://reddit.com/u/louislamlam).  
 You can mention me if you ask a question on Reddit.
-[r/Uptime kuma](https://www.reddit.com/r/UptimeKuma/)
+

 ## Contribute

@@ -175,7 +184,10 @@ If you want to report a bug or request a new feature, feel free to open a [new i
 ### Translations
 If you want to translate Uptime Kuma into your language, please visit [Weblate Readme](https://github.com/louislam/uptime-kuma/blob/master/src/lang/README.md).

-Feel free to correct my grammar in this README, source code, or wiki, as my mother language is not English and my grammar is not that great.
+## Spelling & Grammar
+
+Feel free to correct the grammar in the documentation or code.
+My mother language is not english and my grammar is not that great.

 ### Create Pull Requests
 If you want to modify Uptime Kuma, please read this guide and follow the rules here: https://github.com/louislam/uptime-kuma/blob/master/CONTRIBUTING.md
--- a/babel.config.js
+++ b/babel.config.js
@@ -4,8 +4,4 @@ if (process.env.TEST_FRONTEND) {
    config.presets = [ "@babel/preset-env" ];
 }

-if (process.env.TEST_BACKEND) {
-    config.plugins = [ "babel-plugin-rewire" ];
-}
-
 module.exports = config;
--- a/config/vite.config.js
+++ b/config/vite.config.js
@@ -3,6 +3,7 @@ import vue from "@vitejs/plugin-vue";
 import { defineConfig } from "vite";
 import visualizer from "rollup-plugin-visualizer";
 import viteCompression from "vite-plugin-compression";
+import commonjs from "vite-plugin-commonjs";

 const postCssScss = require("postcss-scss");
 const postcssRTLCSS = require("postcss-rtlcss");
@@ -16,8 +17,12 @@ export default defineConfig({
    },
    define: {
        "FRONTEND_VERSION": JSON.stringify(process.env.npm_package_version),
+        "DEVCONTAINER": JSON.stringify(process.env.DEVCONTAINER),
+        "GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN": JSON.stringify(process.env.GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN),
+        "CODESPACE_NAME": JSON.stringify(process.env.CODESPACE_NAME),
    },
    plugins: [
+        commonjs(),
        vue(),
        legacy({
            targets: [ "since 2015" ],
@@ -42,6 +47,9 @@ export default defineConfig({
        }
    },
    build: {
+        commonjsOptions: {
+            include: [ /.js$/ ],
+        },
        rollupOptions: {
            output: {
                manualChunks(id, { getModuleInfo, getModuleIds }) {
--- a/db/patch-add-certificate-expiry-status-page.sql
+++ b/db/patch-add-certificate-expiry-status-page.sql
@@ -0,0 +1,7 @@
+-- You should not modify if this have pushed to Github, unless it does serious wrong with the db.
+BEGIN TRANSACTION;
+
+ALTER TABLE status_page
+    ADD show_certificate_expiry BOOLEAN default 0 NOT NULL;
+
+COMMIT;
--- a/db/patch-add-gamedig-given-port.sql
+++ b/db/patch-add-gamedig-given-port.sql
@@ -0,0 +1,7 @@
+-- You should not modify if this have pushed to Github, unless it does serious wrong with the db.
+BEGIN TRANSACTION;
+
+ALTER TABLE monitor
+    ADD gamedig_given_port_only BOOLEAN default 1 not null;
+
+COMMIT;
--- a/db/patch-add-invert-keyword.sql
+++ b/db/patch-add-invert-keyword.sql
@@ -0,0 +1,7 @@
+-- You should not modify if this have pushed to Github, unless it does serious wrong with the db.
+BEGIN TRANSACTION;
+
+ALTER TABLE monitor
+    ADD invert_keyword BOOLEAN default 0 not null;
+
+COMMIT;
--- a/db/patch-add-parent-monitor.sql
+++ b/db/patch-add-parent-monitor.sql
@@ -0,0 +1,6 @@
+BEGIN TRANSACTION;
+
+ALTER TABLE monitor
+    ADD parent INTEGER REFERENCES [monitor] ([id]) ON DELETE SET NULL ON UPDATE CASCADE;
+
+COMMIT
--- a/db/patch-add-timeout-monitor.sql
+++ b/db/patch-add-timeout-monitor.sql
@@ -0,0 +1,6 @@
+-- You should not modify if this have pushed to Github, unless it does serious wrong with the db.
+BEGIN TRANSACTION;
+
+ALTER TABLE monitor
+    ADD timeout DOUBLE default 0 not null;
+COMMIT;
--- a/db/patch-added-json-query.sql
+++ b/db/patch-added-json-query.sql
@@ -0,0 +1,10 @@
+-- You should not modify if this have pushed to Github, unless it does serious wrong with the db.
+BEGIN TRANSACTION;
+
+ALTER TABLE monitor
+	ADD json_path TEXT;
+
+ALTER TABLE monitor
+	ADD expected_value VARCHAR(255);
+
+COMMIT;
--- a/db/patch-added-kafka-producer.sql
+++ b/db/patch-added-kafka-producer.sql
@@ -0,0 +1,22 @@
+-- You should not modify if this have pushed to Github, unless it does serious wrong with the db.
+BEGIN TRANSACTION;
+
+ALTER TABLE monitor
+	ADD kafka_producer_topic VARCHAR(255);
+
+ALTER TABLE monitor
+	ADD kafka_producer_brokers TEXT;
+
+ALTER TABLE monitor
+	ADD kafka_producer_ssl INTEGER;
+
+ALTER TABLE monitor
+	ADD kafka_producer_allow_auto_topic_creation VARCHAR(255);
+
+ALTER TABLE monitor
+	ADD kafka_producer_sasl_options TEXT;
+
+ALTER TABLE monitor
+	ADD kafka_producer_message TEXT;
+
+COMMIT;
--- a/db/patch-maintenance-cron.sql
+++ b/db/patch-maintenance-cron.sql
@@ -0,0 +1,11 @@
+-- You should not modify if this have pushed to Github, unless it does serious wrong with the db.
+BEGIN TRANSACTION;
+
+DROP TABLE maintenance_timeslot;
+
+-- 999 characters. https://stackoverflow.com/questions/46134830/maximum-length-for-cron-job
+ALTER TABLE maintenance ADD cron TEXT;
+ALTER TABLE maintenance ADD timezone VARCHAR(255);
+ALTER TABLE maintenance ADD duration INTEGER;
+
+COMMIT;
--- a/db/patch-monitor-oauth-cc.sql
+++ b/db/patch-monitor-oauth-cc.sql
@@ -0,0 +1,19 @@
+-- You should not modify if this have pushed to Github, unless it does serious wrong with the db.
+BEGIN TRANSACTION;
+
+ALTER TABLE monitor
+    ADD oauth_client_id TEXT default null;
+
+ALTER TABLE monitor
+    ADD oauth_client_secret TEXT default null;
+
+ALTER TABLE monitor
+    ADD oauth_token_url TEXT default null;
+
+ALTER TABLE monitor
+    ADD oauth_scopes TEXT default null;
+
+ALTER TABLE monitor
+    ADD oauth_auth_method TEXT default null;
+
+COMMIT;
--- a/db/patch-monitor-tls.sql
+++ b/db/patch-monitor-tls.sql
@@ -0,0 +1,13 @@
+-- You should not modify if this have pushed to Github, unless it does serious wrong with the db.
+BEGIN TRANSACTION;
+
+ALTER TABLE monitor
+    ADD tls_ca TEXT default null;
+
+ALTER TABLE monitor
+    ADD tls_cert TEXT default null;
+
+ALTER TABLE monitor
+    ADD tls_key TEXT default null;
+
+COMMIT;
--- a/docker/alpine-base.dockerfile
+++ b/docker/alpine-base.dockerfile
@@ -4,5 +4,5 @@ WORKDIR /app

 # Install apprise, iputils for non-root ping, setpriv
 RUN apk add --no-cache iputils setpriv dumb-init python3 py3-cryptography py3-pip py3-six py3-yaml py3-click py3-markdown py3-requests py3-requests-oauthlib git && \
-    pip3 --no-cache-dir install apprise==1.3.0 && \
+    pip3 --no-cache-dir install apprise==1.4.0 && \
    rm -rf /root/.cache
--- a/docker/debian-base.dockerfile
+++ b/docker/debian-base.dockerfile
@@ -5,24 +5,44 @@ ARG TARGETPLATFORM

 WORKDIR /app

-# Install Curl
-# Install Apprise, add sqlite3 cli for debugging in the future, iputils-ping for ping, util-linux for setpriv
-# Stupid python3 and python3-pip actually install a lot of useless things into Debian, specify --no-install-recommends to skip them, make the base even smaller than alpine!
-RUN apt update && \
-    apt --yes --no-install-recommends install python3 python3-pip python3-cryptography python3-six python3-yaml python3-click python3-markdown python3-requests python3-requests-oauthlib \
-        sqlite3 iputils-ping util-linux dumb-init git && \
-    pip3 --no-cache-dir install apprise==1.3.0 && \
+# Specify --no-install-recommends to skip unused dependencies, make the base much smaller!
+# python3* = apprise's dependencies
+# sqlite3 = for debugging
+# iputils-ping = for ping
+# util-linux = for setpriv (Should be dropped in 2.0.0?)
+# dumb-init = avoid zombie processes (#480)
+# curl = for debugging
+# ca-certificates = keep the cert up-to-date
+# sudo = for start service nscd with non-root user
+# nscd = for better DNS caching
+# (pip) apprise = for notifications
+RUN apt-get update && \
+    apt-get --yes --no-install-recommends install  \
+        python3 python3-pip python3-cryptography python3-six python3-yaml python3-click python3-markdown python3-requests python3-requests-oauthlib \
+        sqlite3  \
+        iputils-ping  \
+        util-linux  \
+        dumb-init  \
+        curl  \
+        ca-certificates \
+        sudo \
+        nscd && \
+    pip3 --no-cache-dir install apprise==1.4.5 && \
    rm -rf /var/lib/apt/lists/* && \
    apt --yes autoremove

 # Install cloudflared
-# dpkg --add-architecture arm: cloudflared do not provide armhf, this is workaround. Read more: https://github.com/cloudflare/cloudflared/issues/583
-COPY extra/download-cloudflared.js ./extra/download-cloudflared.js
-RUN node ./extra/download-cloudflared.js $TARGETPLATFORM && \
-    dpkg --add-architecture arm && \
-    apt update && \
-    apt --yes --no-install-recommends install ./cloudflared.deb && \
+RUN set -eux && \
+    mkdir -p --mode=0755 /usr/share/keyrings && \
+    curl --fail --show-error --silent --location --insecure https://pkg.cloudflare.com/cloudflare-main.gpg --output /usr/share/keyrings/cloudflare-main.gpg && \
+    echo 'deb [signed-by=/usr/share/keyrings/cloudflare-main.gpg] https://pkg.cloudflare.com/cloudflared buster main' | tee /etc/apt/sources.list.d/cloudflared.list && \
+    apt-get update && \
+    apt-get install --yes --no-install-recommends cloudflared && \
+    cloudflared version && \
    rm -rf /var/lib/apt/lists/* && \
-    rm -f cloudflared.deb && \
    apt --yes autoremove

+# For nscd
+COPY ./docker/etc/nscd.conf /etc/nscd.conf
+COPY ./docker/etc/sudoers /etc/sudoers
+
--- a/docker/dockerfile
+++ b/docker/dockerfile
@@ -26,6 +26,8 @@ RUN chmod +x /app/extra/entrypoint.sh
 FROM louislam/uptime-kuma:base-debian AS release
 WORKDIR /app

+ENV UPTIME_KUMA_IS_CONTAINER=1
+
 # Copy app files from build layer
 COPY --from=build /app /app

@@ -70,7 +72,6 @@ RUN git clone https://github.com/louislam/uptime-kuma.git .
 RUN npm ci

 EXPOSE 3000 3001
-VOLUME ["/app/data"]
 HEALTHCHECK --interval=60s --timeout=30s --start-period=180s --retries=5 CMD extra/healthcheck
 CMD ["npm", "run", "start-pr-test"]

--- a/docker/etc/nscd.conf
+++ b/docker/etc/nscd.conf
@@ -0,0 +1,90 @@
+#
+# /etc/nscd.conf
+#
+# An example Name Service Cache config file.  This file is needed by nscd.
+#
+# Legal entries are:
+#
+#       logfile                 <file>
+#       debug-level             <level>
+#       threads                 <initial #threads to use>
+#       max-threads             <maximum #threads to use>
+#       server-user             <user to run server as instead of root>
+#               server-user is ignored if nscd is started with -S parameters
+#       stat-user               <user who is allowed to request statistics>
+#       reload-count            unlimited|<number>
+#       paranoia                <yes|no>
+#       restart-interval        <time in seconds>
+#
+#       enable-cache            <service> <yes|no>
+#       positive-time-to-live   <service> <time in seconds>
+#       negative-time-to-live   <service> <time in seconds>
+#       suggested-size          <service> <prime number>
+#       check-files             <service> <yes|no>
+#       persistent              <service> <yes|no>
+#       shared                  <service> <yes|no>
+#       max-db-size             <service> <number bytes>
+#       auto-propagate          <service> <yes|no>
+#
+# Currently supported cache names (services): passwd, group, hosts, services
+#
+
+
+#       logfile                 /var/log/nscd.log
+#       threads                 4
+#       max-threads             32
+#        server-user             node
+#       stat-user               somebody
+        debug-level             0
+#       reload-count            5
+        paranoia                no
+#       restart-interval        3600
+
+        enable-cache            passwd          no
+        positive-time-to-live   passwd          600
+        negative-time-to-live   passwd          20
+        suggested-size          passwd          211
+        check-files             passwd          yes
+        persistent              passwd          yes
+        shared                  passwd          yes
+        max-db-size             passwd          33554432
+        auto-propagate          passwd          yes
+
+        enable-cache            group           no
+        positive-time-to-live   group           3600
+        negative-time-to-live   group           60
+        suggested-size          group           211
+        check-files             group           yes
+        persistent              group           yes
+        shared                  group           yes
+        max-db-size             group           33554432
+        auto-propagate          group           yes
+
+        enable-cache            hosts           yes
+        positive-time-to-live   hosts           3600
+        negative-time-to-live   hosts           20
+        suggested-size          hosts           211
+        check-files             hosts           yes
+        persistent              hosts           yes
+# Set shared to "no" to display stats in `nscd -g`
+# Read more: https://stackoverflow.com/questions/40429245/nscdcentos7curl-0-dns-cache-hit-rate
+        shared                  hosts           no
+        max-db-size             hosts           33554432
+
+        enable-cache            services        no
+        positive-time-to-live   services        28800
+        negative-time-to-live   services        20
+        suggested-size          services        211
+        check-files             services        yes
+        persistent              services        yes
+        shared                  services        yes
+        max-db-size             services        33554432
+
+        enable-cache            netgroup        no
+        positive-time-to-live   netgroup        28800
+        negative-time-to-live   netgroup        20
+        suggested-size          netgroup        211
+        check-files             netgroup        yes
+        persistent              netgroup        yes
+        shared                  netgroup        yes
+        max-db-size             netgroup        33554432
--- a/docker/etc/sudoers
+++ b/docker/etc/sudoers
@@ -0,0 +1,31 @@
+#
+# This file MUST be edited with the 'visudo' command as root.
+#
+# Please consider adding local content in /etc/sudoers.d/ instead of
+# directly modifying this file.
+#
+# See the man page for details on how to write a sudoers file.
+#
+Defaults        env_reset
+Defaults        mail_badpass
+Defaults        secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+
+# Host alias specification
+
+# User alias specification
+
+# Cmnd alias specification
+
+# User privilege specification
+root    ALL=(ALL:ALL) ALL
+
+# Allow members of group sudo to execute any command
+%sudo   ALL=(ALL:ALL) ALL
+
+# See sudoers(5) for more information on "#include" directives:
+
+#includedir /etc/sudoers.d
+
+# Allow `node` to control service (mainly for nscd)
+node ALL=(root) NOPASSWD: /usr/sbin/nscdservice
+node ALL=(root) NOPASSWD: /usr/sbin/service
--- a/extra/deploy-demo-server.js
+++ b/extra/deploy-demo-server.js
@@ -43,10 +43,11 @@ const prompt = (query) => new Promise((resolve) => rl.question(query, resolve));
        });
        console.log(result.stdout + result.stderr);

+        /*
        result = await ssh.execCommand("pm2 restart 1", {
            cwd,
        });
-        console.log(result.stdout + result.stderr);
+        console.log(result.stdout + result.stderr);*/

    } catch (e) {
        console.log(e);
--- a/extra/download-cloudflared.js
+++ b/extra/download-cloudflared.js
@@ -1,48 +0,0 @@
-//
-
-const http = require("https"); // or 'https' for https:// URLs
-const fs = require("fs");
-
-const platform = process.argv[2];
-
-if (!platform) {
-    console.error("No platform??");
-    process.exit(1);
-}
-
-let arch = null;
-
-if (platform === "linux/amd64") {
-    arch = "amd64";
-} else if (platform === "linux/arm64") {
-    arch = "arm64";
-} else if (platform === "linux/arm/v7") {
-    arch = "arm";
-} else {
-    console.error("Invalid platform?? " + platform);
-}
-
-const file = fs.createWriteStream("cloudflared.deb");
-get("https://github.com/cloudflare/cloudflared/releases/latest/download/cloudflared-linux-" + arch + ".deb");
-
-/**
- * Download specified file
- * @param {string} url URL to request
- */
-function get(url) {
-    http.get(url, function (res) {
-        if (res.statusCode >= 300 && res.statusCode < 400 && res.headers.location) {
-            console.log("Redirect to " + res.headers.location);
-            get(res.headers.location);
-        } else if (res.statusCode >= 200 && res.statusCode < 300) {
-            res.pipe(file);
-
-            res.on("end", function () {
-                console.log("Downloaded");
-            });
-        } else {
-            console.error(res.statusCode);
-            process.exit(1);
-        }
-    });
-}
--- a/extra/exe-builder/FodyWeavers.xml
+++ b/extra/exe-builder/FodyWeavers.xml
@@ -1,3 +1,3 @@
 <Weavers xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="FodyWeavers.xsd">
-  <Costura />
+  <Costura DisableCompression='true' IncludeDebugSymbols='false' />
 </Weavers>
--- a/extra/exe-builder/Properties/AssemblyInfo.cs
+++ b/extra/exe-builder/Properties/AssemblyInfo.cs
@@ -6,9 +6,9 @@ using System.Runtime.InteropServices;
 // set of attributes. Change these attribute values to modify the information
 // associated with an assembly.
 [assembly: AssemblyTitle("Uptime Kuma")]
-[assembly: AssemblyDescription("")]
+[assembly: AssemblyDescription("A portable executable for running Uptime Kuma")]
 [assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("")]
+[assembly: AssemblyCompany("Uptime Kuma")]
 [assembly: AssemblyProduct("Uptime Kuma")]
 [assembly: AssemblyCopyright("Copyright © 2023 Louis Lam")]
 [assembly: AssemblyTrademark("")]
@@ -20,7 +20,7 @@ using System.Runtime.InteropServices;
 [assembly: ComVisible(false)]

 // The following GUID is for the ID of the typelib if this project is exposed to COM
-[assembly: Guid("2DB53988-1D93-4AC0-90C4-96ADEAAC5C04")]
+[assembly: Guid("86B40AFB-61FC-433D-8C31-650B0F32EA8F")]

 // Version information for an assembly consists of the following four values:
 //
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.0.0.0")]
+[assembly: AssemblyVersion("1.0.1.0")]
+[assembly: AssemblyFileVersion("1.0.1.0")]
--- a/extra/install.batsh
+++ b/extra/install.batsh
@@ -5,15 +5,15 @@

 // curl -o kuma_install.sh https://raw.githubusercontent.com/louislam/uptime-kuma/master/install.sh && sudo bash kuma_install.sh
 println("=====================");
-println("Uptime Kuma Installer");
+println("Uptime Kuma Install Script");
 println("=====================");
-println("Supported OS: CentOS 7/8, Ubuntu >= 16.04 and Debian");
+println("Supported OS: Ubuntu >= 16.04, Debian and CentOS/RHEL 7/8");
 println("---------------------------------------");
 println("This script is designed for Linux and basic usage.");
 println("For advanced usage, please go to https://github.com/louislam/uptime-kuma/wiki/Installation");
 println("---------------------------------------");
 println("");
-println("Local - Install Uptime Kuma in your current machine with git, Node.js 14 and pm2");
+println("Local - Install Uptime Kuma on your current machine with git, Node.js and pm2");
 println("Docker - Install Uptime Kuma Docker container");
 println("");

@@ -29,14 +29,10 @@ function checkNode() {
    bash("nodeVersion=$(node -e 'console.log(process.versions.node.split(`.`)[0])')");
    println("Node Version: " ++ nodeVersion);

-    if (nodeVersion < "12") {
+    if (nodeVersion <= "12") {
        println("Error: Required Node.js 14");
        call("exit", "1");
    }
-
-    if (nodeVersion == "12") {
-        println("Warning: NodeJS " ++ nodeVersion ++ " is not tested.");
-    }
 }

 function deb() {
@@ -60,8 +56,8 @@ function deb() {
            bash("apt --yes install curl");
        }

-        println("Installing Node.js 14");
-        bash("curl -sL https://deb.nodesource.com/setup_14.x | bash - > log.txt");
+        println("Installing Node.js 16");
+        bash("curl -sL https://deb.nodesource.com/setup_16.x | bash - > log.txt");
        bash("apt --yes install nodejs");
        bash("node -v");

@@ -91,6 +87,10 @@ if (type == "local") {
        bash("os=$(head -n1 /etc/issue | cut -f 1 -d ' ')");
        if (os == "Ubuntu") {
            distribution = "ubuntu";
+
+            // Get ubuntu version
+            bash(". /etc/lsb-release");
+            version = DISTRIB_RELEASE;
        }
        if (os == "Debian") {
            distribution = "debian";
@@ -101,6 +101,7 @@ if (type == "local") {

    println("Your OS: " ++ os);
    println("Distribution: " ++ distribution);
+    println("Version: " ++ version);
    println("Arch: " ++ arch);

    if ("$3" != "") {
@@ -131,15 +132,32 @@ if (type == "local") {
            checkNode();
        } else {

-            bash("curlCheck=$(curl --version)");
-            if (curlCheck == "") {
-                println("Installing Curl");
-                bash("yum -y -q install curl");
+            bash("dnfCheck=$(dnf --version)");
+
+            // Use yum
+            if (dnfCheck == "") {
+                bash("curlCheck=$(curl --version)");
+                if (curlCheck == "") {
+                    println("Installing Curl");
+                    bash("yum -y -q install curl");
+                }
+
+                println("Installing Node.js 16");
+                bash("curl -sL https://rpm.nodesource.com/setup_16.x | bash - > log.txt");
+                bash("yum install -y -q nodejs");
+            } else {
+                bash("curlCheck=$(curl --version)");
+                if (curlCheck == "") {
+                    println("Installing Curl");
+                    bash("dnf -y install curl");
+                }
+
+                println("Installing Node.js 16");
+                bash("curl -sL https://rpm.nodesource.com/setup_16.x | bash - > log.txt");
+                bash("dnf install -y nodejs");
            }

-            println("Installing Node.js 14");
-            bash("curl -sL https://rpm.nodesource.com/setup_14.x | bash - > log.txt");
-            bash("yum install -y -q nodejs");
+
            bash("node -v");

            bash("nodeCheckAgain=$(node -v)");
@@ -193,6 +211,14 @@ if (type == "local") {
       bash("pm2 startup");
   }

+
+   // Check again
+   bash("check=$(pm2 --version)");
+   if (check == "") {
+       println("Error: pm2 is not found!");
+       bash("exit 1");
+   }
+
   bash("mkdir -p $installPath");
   bash("cd $installPath");
   bash("git clone https://github.com/louislam/uptime-kuma.git .");
--- a/extra/sort-contributors.js
+++ b/extra/sort-contributors.js
@@ -13,7 +13,7 @@ lines = lines.filter((line) => line !== "");
 lines = [ ...new Set(lines) ];

 // Remove @weblate and @UptimeKumaBot
-lines = lines.filter((line) => line !== "@weblate" && line !== "@UptimeKumaBot");
+lines = lines.filter((line) => line !== "@weblate" && line !== "@UptimeKumaBot" && line !== "@louislam");

 // Sort the lines
 lines = lines.sort();
--- a/extra/test-docker.js
+++ b/extra/test-docker.js
@@ -0,0 +1,9 @@
+// Check if docker is running
+const { exec } = require("child_process");
+
+exec("docker ps", (err, stdout, stderr) => {
+    if (err) {
+        console.error("Docker is not running. Please start docker and try again.");
+        process.exit(1);
+    }
+});
--- a/index.html
+++ b/index.html
@@ -2,7 +2,7 @@
 <html lang="en">
 <head>
    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover" />
    <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
    <link rel="icon" type="image/svg+xml" href="/icon.svg" />
    <link rel="manifest" href="/manifest.json" />
--- a/install.sh
+++ b/install.sh
@@ -3,15 +3,15 @@
 # The command is working on Windows PowerShell and Docker for Windows only.
 # curl -o kuma_install.sh https://raw.githubusercontent.com/louislam/uptime-kuma/master/install.sh && sudo bash kuma_install.sh
 "echo" "-e" "====================="
-"echo" "-e" "Uptime Kuma Installer"
+"echo" "-e" "Uptime Kuma Install Script"
 "echo" "-e" "====================="
-"echo" "-e" "Supported OS: CentOS 7/8, Ubuntu >= 16.04 and Debian"
+"echo" "-e" "Supported OS: Ubuntu >= 16.04, Debian and CentOS/RHEL 7/8"
 "echo" "-e" "---------------------------------------"
 "echo" "-e" "This script is designed for Linux and basic usage."
 "echo" "-e" "For advanced usage, please go to https://github.com/louislam/uptime-kuma/wiki/Installation"
 "echo" "-e" "---------------------------------------"
 "echo" "-e" ""
-"echo" "-e" "Local - Install Uptime Kuma in your current machine with git, Node.js 14 and pm2"
+"echo" "-e" "Local - Install Uptime Kuma on your current machine with git, Node.js and pm2"
 "echo" "-e" "Docker - Install Uptime Kuma Docker container"
 "echo" "-e" ""
 if [ "$1" != "" ]; then
@@ -25,12 +25,9 @@ function checkNode {
  nodeVersion=$(node -e 'console.log(process.versions.node.split(`.`)[0])')
  "echo" "-e" "Node Version: ""$nodeVersion"
  _0="12"
-  if [ $(($nodeVersion < $_0)) == 1 ]; then
+  if [ $(($nodeVersion <= $_0)) == 1 ]; then
    "echo" "-e" "Error: Required Node.js 14"
    "exit" "1"  
-fi
-  if [ "$nodeVersion" == "12" ]; then
-    "echo" "-e" "Warning: NodeJS ""$nodeVersion"" is not tested."  
 fi
 }
 function deb {
@@ -50,8 +47,8 @@ fi
      "echo" "-e" "Installing Curl"
      apt --yes install curl    
 fi
-    "echo" "-e" "Installing Node.js 14"
-    curl -sL https://deb.nodesource.com/setup_14.x | bash - > log.txt
+    "echo" "-e" "Installing Node.js 16"
+    curl -sL https://deb.nodesource.com/setup_16.x | bash - > log.txt
    apt --yes install nodejs
    node -v
    nodeCheckAgain=$(node -v)
@@ -75,7 +72,10 @@ if [ "$type" == "local" ]; then
    if [ -e "/etc/issue" ]; then
      os=$(head -n1 /etc/issue | cut -f 1 -d ' ')
      if [ "$os" == "Ubuntu" ]; then
-        distribution="ubuntu"      
+        distribution="ubuntu"
+        # Get ubuntu version
+        . /etc/lsb-release
+        version="$DISTRIB_RELEASE"      
 fi
      if [ "$os" == "Debian" ]; then
        distribution="debian"      
@@ -85,6 +85,7 @@ fi
  arch=$(uname -i)
  "echo" "-e" "Your OS: ""$os"
  "echo" "-e" "Distribution: ""$distribution"
+  "echo" "-e" "Version: ""$version"
  "echo" "-e" "Arch: ""$arch"
  if [ "$3" != "" ]; then
    port="$3"
@@ -108,14 +109,27 @@ fi
    if [ "$nodeCheck" != "" ]; then
      "checkNode" 
    else
-      curlCheck=$(curl --version)
-      if [ "$curlCheck" == "" ]; then
-        "echo" "-e" "Installing Curl"
-        yum -y -q install curl      
+      dnfCheck=$(dnf --version)
+      # Use yum
+      if [ "$dnfCheck" == "" ]; then
+        curlCheck=$(curl --version)
+        if [ "$curlCheck" == "" ]; then
+          "echo" "-e" "Installing Curl"
+          yum -y -q install curl        
 fi
-      "echo" "-e" "Installing Node.js 14"
-      curl -sL https://rpm.nodesource.com/setup_14.x | bash - > log.txt
-      yum install -y -q nodejs
+        "echo" "-e" "Installing Node.js 16"
+        curl -sL https://rpm.nodesource.com/setup_16.x | bash - > log.txt
+        yum install -y -q nodejs
+      else
+        curlCheck=$(curl --version)
+        if [ "$curlCheck" == "" ]; then
+          "echo" "-e" "Installing Curl"
+          dnf -y install curl        
+fi
+        "echo" "-e" "Installing Node.js 16"
+        curl -sL https://rpm.nodesource.com/setup_16.x | bash - > log.txt
+        dnf install -y nodejs
+      fi
      node -v
      nodeCheckAgain=$(node -v)
      if [ "$nodeCheckAgain" == "" ]; then
@@ -161,6 +175,12 @@ fi
    "echo" "-e" "Installing PM2"
    npm install pm2 -g && pm2 install pm2-logrotate
    pm2 startup  
+fi
+  # Check again
+  check=$(pm2 --version)
+  if [ "$check" == "" ]; then
+    "echo" "-e" "Error: pm2 is not found!"
+    exit 1  
 fi
  mkdir -p $installPath
  cd $installPath
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@@ -1,13 +1,13 @@
 {
    "name": "uptime-kuma",
-    "version": "1.21.0-beta.0",
+    "version": "1.23.0-beta.1",
    "license": "MIT",
    "repository": {
        "type": "git",
        "url": "https://github.com/louislam/uptime-kuma.git"
    },
    "engines": {
-        "node": "14.* || >=16.*"
+        "node": "14 || 16 || 18 || >= 20.4.0"
    },
    "scripts": {
        "install-legacy": "npm install",
@@ -19,6 +19,7 @@
        "lint": "npm run lint:js && npm run lint:style",
        "dev": "concurrently -k -r \"wait-on tcp:3000 && npm run start-server-dev \" \"npm run start-frontend-dev\"",
        "start-frontend-dev": "cross-env NODE_ENV=development vite --host --config ./config/vite.config.js",
+        "start-frontend-devcontainer": "cross-env NODE_ENV=development DEVCONTAINER=1 vite --host --config ./config/vite.config.js",
        "start": "npm run start-server",
        "start-server": "node server/server.js",
        "start-server-dev": "cross-env NODE_ENV=development node server/server.js",
@@ -34,28 +35,31 @@
        "build-docker-builder-go": "docker buildx build -f docker/builder-go.dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:builder-go . --push",
        "build-docker-alpine": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile-alpine --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:alpine -t louislam/uptime-kuma:1-alpine -t louislam/uptime-kuma:$VERSION-alpine --target release . --push",
        "build-docker-debian": "node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma -t louislam/uptime-kuma:1 -t louislam/uptime-kuma:$VERSION -t louislam/uptime-kuma:debian -t louislam/uptime-kuma:1-debian -t louislam/uptime-kuma:$VERSION-debian --target release . --push",
-        "build-docker-nightly": "npm run build && docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:nightly --target nightly . --push",
+        "build-docker-nightly": "node ./extra/test-docker.js && npm run build && docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:nightly --target nightly . --push",
        "build-docker-nightly-alpine": "docker buildx build -f docker/dockerfile-alpine --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:nightly-alpine --target nightly . --push",
        "build-docker-nightly-amd64": "docker buildx build -f docker/dockerfile --platform linux/amd64 -t louislam/uptime-kuma:nightly-amd64 --target nightly . --push --progress plain",
        "build-docker-pr-test": "docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64 -t louislam/uptime-kuma:pr-test --target pr-test . --push",
        "upload-artifacts": "docker buildx build -f docker/dockerfile --platform linux/amd64 -t louislam/uptime-kuma:upload-artifact --build-arg VERSION --build-arg GITHUB_TOKEN --target upload-artifact . --progress plain",
-        "setup": "git checkout 1.20.2 && npm ci --production && npm run download-dist",
+        "setup": "git checkout 1.22.1 && npm ci --production && npm run download-dist",
        "download-dist": "node extra/download-dist.js",
        "mark-as-nightly": "node extra/mark-as-nightly.js",
        "reset-password": "node extra/reset-password.js",
        "remove-2fa": "node extra/remove-2fa.js",
        "compile-install-script": "@powershell -NoProfile -ExecutionPolicy Unrestricted -Command ./extra/compile-install-script.ps1",
+        "test-install-script-rockylinux": "npm run compile-install-script && docker build --progress plain -f test/test_install_script/rockylinux.dockerfile .",
        "test-install-script-centos7": "npm run compile-install-script && docker build --progress plain -f test/test_install_script/centos7.dockerfile .",
        "test-install-script-alpine3": "npm run compile-install-script && docker build --progress plain -f test/test_install_script/alpine3.dockerfile .",
+        "test-install-script-debian": "npm run compile-install-script && docker build --progress plain -f test/test_install_script/debian.dockerfile .",
+        "test-install-script-debian-buster": "npm run compile-install-script && docker build --progress plain -f test/test_install_script/debian-buster.dockerfile .",
        "test-install-script-ubuntu": "npm run compile-install-script && docker build --progress plain -f test/test_install_script/ubuntu.dockerfile .",
+        "test-install-script-ubuntu1804": "npm run compile-install-script && docker build --progress plain -f test/test_install_script/ubuntu1804.dockerfile .",
        "test-install-script-ubuntu1604": "npm run compile-install-script && docker build --progress plain -f test/test_install_script/ubuntu1604.dockerfile .",
-        "test-nodejs16": "docker build --progress plain -f test/ubuntu-nodejs16.dockerfile .",
        "simple-dns-server": "node extra/simple-dns-server.js",
        "simple-mqtt-server": "node extra/simple-mqtt-server.js",
        "update-language-files": "cd extra/update-language-files && node index.js && cross-env-shell eslint ../../src/languages/$npm_config_language.js --fix",
        "ncu-patch": "npm-check-updates -u -t patch",
-        "release-final": "node extra/update-version.js && npm run build-docker && node ./extra/press-any-key.js && npm run upload-artifacts && node ./extra/update-wiki-version.js",
-        "release-beta": "node extra/beta/update-version.js && npm run build && node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:$VERSION -t louislam/uptime-kuma:beta .  --target release --push && node ./extra/press-any-key.js && npm run upload-artifacts",
+        "release-final": "node ./extra/test-docker.js && node extra/update-version.js && npm run build-docker && node ./extra/press-any-key.js && npm run upload-artifacts && node ./extra/update-wiki-version.js",
+        "release-beta": "node ./extra/test-docker.js && node extra/beta/update-version.js && npm run build && node ./extra/env2arg.js docker buildx build -f docker/dockerfile --platform linux/amd64,linux/arm64,linux/arm/v7 -t louislam/uptime-kuma:$VERSION -t louislam/uptime-kuma:beta .  --target release --push && node ./extra/press-any-key.js && npm run upload-artifacts",
        "git-remove-tag": "git tag -d",
        "build-dist-and-restart": "npm run build && npm run start-server-dev",
        "start-pr-test": "node extra/checkout-pr.js && npm install && npm run dev",
@@ -64,19 +68,18 @@
        "cy:run:unit": "npx cypress run --browser chrome --headless --config-file ./config/cypress.frontend.config.js",
        "cypress-open": "concurrently -k -r \"node test/prepare-test-server.js && node server/server.js --port=3002 --data-dir=./data/test/\" \"cypress open --config-file ./config/cypress.config.js\"",
        "build-healthcheck-armv7": "cross-env GOOS=linux GOARCH=arm GOARM=7 go build -x -o ./extra/healthcheck-armv7 ./extra/healthcheck.go",
-        "depoly-demo-server": "node extra/deploy-demo-server.js",
+        "deploy-demo-server": "node extra/deploy-demo-server.js",
        "sort-contributors": "node extra/sort-contributors.js"
    },
    "dependencies": {
        "@grpc/grpc-js": "~1.7.3",
-        "@louislam/ping": "~0.4.2-mod.2",
-        "@louislam/sqlite3": "15.1.2",
+        "@louislam/ping": "~0.4.4-mod.1",
+        "@louislam/sqlite3": "15.1.6",
        "args-parser": "~1.3.0",
        "axios": "~0.27.0",
        "axios-ntlm": "1.3.0",
        "badge-maker": "~3.3.1",
        "bcryptjs": "~2.4.3",
-        "bree": "~7.1.5",
        "cacheable-lookup": "~6.0.4",
        "chardet": "~1.4.0",
        "check-password-strength": "^2.0.5",
@@ -85,49 +88,59 @@
        "command-exists": "~1.2.9",
        "compare-versions": "~3.6.0",
        "compression": "~1.7.4",
+        "croner": "~6.0.5",
        "dayjs": "~1.11.5",
        "dotenv": "~16.0.3",
        "express": "~4.17.3",
        "express-basic-auth": "~1.2.1",
        "express-static-gzip": "~2.1.7",
        "form-data": "~4.0.0",
-        "gamedig": "^4.0.5",
+        "gamedig": "~4.0.5",
        "http-graceful-shutdown": "~3.1.7",
        "http-proxy-agent": "~5.0.0",
        "https-proxy-agent": "~5.0.1",
        "iconv-lite": "~0.6.3",
+        "isomorphic-ws": "^5.0.0",
        "jsesc": "~3.0.2",
+        "jsonata": "^2.0.3",
        "jsonwebtoken": "~9.0.0",
        "jwt-decode": "~3.1.2",
+        "kafkajs": "^2.2.4",
        "limiter": "~2.1.0",
+        "liquidjs": "^10.7.0",
        "mongodb": "~4.14.0",
        "mqtt": "~4.3.7",
        "mssql": "~8.1.4",
        "mysql2": "~2.3.3",
-        "nanoid": "^3.3.4",
+        "nanoid": "~3.3.4",
        "node-cloudflared-tunnel": "~1.0.9",
        "node-radius-client": "~1.0.0",
        "nodemailer": "~6.6.5",
+        "nostr-tools": "^1.13.1",
        "notp": "~2.0.3",
+        "openid-client": "^5.4.2",
        "password-hash": "~1.2.2",
        "pg": "~8.8.0",
        "pg-connection-string": "~2.5.0",
+        "playwright-core": "~1.35.1",
        "prom-client": "~13.2.0",
        "prometheus-api-metrics": "~3.2.1",
-        "protobufjs": "~7.1.1",
+        "protobufjs": "~7.2.4",
        "qs": "~6.10.4",
-        "redbean-node": "~0.2.0",
+        "redbean-node": "~0.3.0",
        "redis": "~4.5.1",
-        "socket.io": "~4.5.3",
-        "socket.io-client": "~4.5.3",
+        "semver": "~7.5.4",
+        "socket.io": "~4.6.1",
+        "socket.io-client": "~4.6.1",
        "socks-proxy-agent": "6.1.1",
        "tar": "~6.1.11",
        "tcp-ping": "~0.1.1",
-        "thirty-two": "~1.0.2"
+        "thirty-two": "~1.0.2",
+        "ws": "^8.13.0"
    },
    "devDependencies": {
        "@actions/github": "~5.0.1",
-        "@babel/eslint-parser": "~7.17.0",
+        "@babel/eslint-parser": "^7.22.7",
        "@babel/preset-env": "^7.15.8",
        "@fortawesome/fontawesome-svg-core": "~1.2.36",
        "@fortawesome/free-regular-svg-icons": "~5.15.4",
@@ -135,28 +148,28 @@
        "@fortawesome/vue-fontawesome": "~3.0.0-5",
        "@popperjs/core": "~2.10.2",
        "@types/bootstrap": "~5.1.9",
-        "@vitejs/plugin-legacy": "~2.1.0",
-        "@vitejs/plugin-vue": "~3.1.0",
-        "@vue/compiler-sfc": "~3.2.36",
+        "@vitejs/plugin-legacy": "~4.1.0",
+        "@vitejs/plugin-vue": "~4.2.3",
+        "@vue/compiler-sfc": "~3.3.4",
        "@vuepic/vue-datepicker": "~3.4.8",
        "aedes": "^0.46.3",
-        "babel-plugin-rewire": "~1.2.0",
        "bootstrap": "5.1.3",
-        "chart.js": "~3.6.2",
-        "chartjs-adapter-dayjs": "~1.0.0",
+        "chart.js": "~4.2.1",
+        "chartjs-adapter-dayjs-4": "~1.0.4",
        "concurrently": "^7.1.0",
        "core-js": "~3.26.1",
+        "cronstrue": "~2.24.0",
        "cross-env": "~7.0.3",
-        "cypress": "^10.1.0",
+        "cypress": "^12.17.0",
        "delay": "^5.0.0",
        "dns2": "~2.0.1",
        "dompurify": "~2.4.3",
        "eslint": "~8.14.0",
        "eslint-plugin-vue": "~8.7.1",
        "favico.js": "~0.3.10",
-        "jest": "~27.2.5",
+        "jest": "~29.6.1",
        "marked": "~4.2.5",
-        "node-ssh": "~13.0.1",
+        "node-ssh": "~13.1.0",
        "postcss-html": "~1.5.0",
        "postcss-rtlcss": "~3.7.2",
        "postcss-scss": "~4.0.4",
@@ -164,16 +177,17 @@
        "qrcode": "~1.5.0",
        "rollup-plugin-visualizer": "^5.6.0",
        "sass": "~1.42.1",
-        "stylelint": "~14.7.1",
+        "stylelint": "^15.10.1",
        "stylelint-config-standard": "~25.0.0",
        "terser": "~5.15.0",
        "timezones-list": "~3.0.1",
        "typescript": "~4.4.4",
        "v-pagination-3": "~0.1.7",
-        "vite": "~3.1.0",
+        "vite": "~4.4.1",
+        "vite-plugin-commonjs": "^0.8.0",
        "vite-plugin-compression": "^0.5.1",
-        "vue": "next",
-        "vue-chart-3": "3.0.9",
+        "vue": "~3.3.4",
+        "vue-chartjs": "~5.2.0",
        "vue-confirm-dialog": "~1.0.2",
        "vue-contenteditable": "~3.0.4",
        "vue-i18n": "~9.2.2",
@@ -184,6 +198,7 @@
        "vue-router": "~4.0.14",
        "vue-toastification": "~2.0.0-rc.5",
        "vuedraggable": "~4.1.0",
-        "wait-on": "^6.0.1"
+        "wait-on": "^6.0.1",
+        "whatwg-url": "~12.0.1"
    }
 }
--- a/server/auth.js
+++ b/server/auth.js
@@ -2,6 +2,7 @@ const basicAuth = require("express-basic-auth");
 const passwordHash = require("./password-hash");
 const { R } = require("redbean-node");
 const { setting } = require("./util-server");
+const { log } = require("../src/util");
 const { loginRateLimiter, apiRateLimiter } = require("./rate-limiter");
 const { Settings } = require("./settings");
 const dayjs = require("dayjs");
@@ -81,12 +82,16 @@ function apiAuthorizer(username, password, callback) {
    apiRateLimiter.pass(null, 0).then((pass) => {
        if (pass) {
            verifyAPIKey(password).then((valid) => {
+                if (!valid) {
+                    log.warn("api-auth", "Failed API auth attempt: invalid API Key");
+                }
                callback(null, valid);
                // Only allow a set number of api requests per minute
                // (currently set to 60)
                apiRateLimiter.removeTokens(1);
            });
        } else {
+            log.warn("api-auth", "Failed API auth attempt: rate limit exceeded");
            callback(null, false);
        }
    });
@@ -106,10 +111,12 @@ function userAuthorizer(username, password, callback) {
                callback(null, user != null);

                if (user == null) {
+                    log.warn("basic-auth", "Failed basic auth attempt: invalid username/password");
                    loginRateLimiter.removeTokens(1);
                }
            });
        } else {
+            log.warn("basic-auth", "Failed basic auth attempt: rate limit exceeded");
            callback(null, false);
        }
    });
--- a/server/check-version.js
+++ b/server/check-version.js
@@ -1,27 +1,33 @@
 const { setSetting, setting } = require("./util-server");
 const axios = require("axios");
 const compareVersions = require("compare-versions");
+const { log } = require("../src/util");

 exports.version = require("../package.json").version;
 exports.latestVersion = null;

+// How much time in ms to wait between update checks
+const UPDATE_CHECKER_INTERVAL_MS = 1000 * 60 * 60 * 48;
+const UPDATE_CHECKER_LATEST_VERSION_URL = "https://uptime.kuma.pet/version";
+
 let interval;

-/** Start 48 hour check interval */
 exports.startInterval = () => {
    let check = async () => {
+        if (await setting("checkUpdate") === false) {
+            return;
+        }
+
+        log.debug("update-checker", "Retrieving latest versions");
+
        try {
-            const res = await axios.get("https://uptime.kuma.pet/version");
+            const res = await axios.get(UPDATE_CHECKER_LATEST_VERSION_URL);

            // For debug
            if (process.env.TEST_CHECK_VERSION === "1") {
                res.data.slow = "1000.0.0";
            }

-            if (await setting("checkUpdate") === false) {
-                return;
-            }
-
            let checkBeta = await setting("checkBeta");

            if (checkBeta && res.data.beta) {
@@ -35,12 +41,14 @@ exports.startInterval = () => {
                exports.latestVersion = res.data.slow;
            }

-        } catch (_) { }
+        } catch (_) {
+            log.info("update-checker", "Failed to check for new versions");
+        }

    };

    check();
-    interval = setInterval(check, 3600 * 1000 * 48);
+    interval = setInterval(check, UPDATE_CHECKER_INTERVAL_MS);
 };

 /**
--- a/server/client.js
+++ b/server/client.js
@@ -141,12 +141,21 @@ async function sendAPIKeyList(socket) {
 /**
 * Emits the version information to the client.
 * @param {Socket} socket Socket.io socket instance
+ * @param {boolean} hideVersion
 * @returns {Promise<void>}
 */
-async function sendInfo(socket) {
+async function sendInfo(socket, hideVersion = false) {
+    let version;
+    let latestVersion;
+
+    if (!hideVersion) {
+        version = checkVersion.version;
+        latestVersion = checkVersion.latestVersion;
+    }
+
    socket.emit("info", {
-        version: checkVersion.version,
-        latestVersion: checkVersion.latestVersion,
+        version,
+        latestVersion,
        primaryBaseURL: await setting("primaryBaseURL"),
        serverTimezone: await server.getTimezone(),
        serverTimezoneOffset: server.getTimezoneOffset(),
--- a/server/config.js
+++ b/server/config.js
@@ -1,4 +1,5 @@
-const args = require("args-parser")(process.argv);
+// Interop with browser
+const args = (typeof process !== "undefined") ? require("args-parser")(process.argv) : {};
 const demoMode = args["demo"] || false;

 const badgeConstants = {
--- a/server/database.js
+++ b/server/database.js
@@ -2,9 +2,8 @@ const fs = require("fs");
 const { R } = require("redbean-node");
 const { setSetting, setting } = require("./util-server");
 const { log, sleep } = require("../src/util");
-const dayjs = require("dayjs");
 const knex = require("knex");
-const { PluginsManager } = require("./plugins-manager");
+const path = require("path");

 /**
 * Database & App Data Folder
@@ -23,18 +22,17 @@ class Database {
     */
    static uploadDir;

+    static screenshotDir;
+
    static path;

+    static dockerTLSDir;
+
    /**
     * @type {boolean}
     */
    static patched = false;

-    /**
-     * For Backup only
-     */
-    static backupPath = null;
-
    /**
     * Add patch filename in key
     * Values:
@@ -73,6 +71,16 @@ class Database {
        "patch-http-body-encoding.sql": true,
        "patch-add-description-monitor.sql": true,
        "patch-api-key-table.sql": true,
+        "patch-monitor-tls.sql": true,
+        "patch-maintenance-cron.sql": true,
+        "patch-add-parent-monitor.sql": true,
+        "patch-add-invert-keyword.sql": true,
+        "patch-added-json-query.sql": true,
+        "patch-added-kafka-producer.sql": true,
+        "patch-add-certificate-expiry-status-page.sql": true,
+        "patch-monitor-oauth-cc.sql": true,
+        "patch-add-timeout-monitor.sql": true,
+        "patch-add-gamedig-given-port.sql": true,
    };

    /**
@@ -91,23 +99,28 @@ class Database {
        // Data Directory (must be end with "/")
        Database.dataDir = process.env.DATA_DIR || args["data-dir"] || "./data/";

-        // Plugin feature is working only if the dataDir = "./data";
-        if (Database.dataDir !== "./data/") {
-            log.warn("PLUGIN", "Warning: In order to enable plugin feature, you need to use the default data directory: ./data/");
-            PluginsManager.disable = true;
-        }
-
-        Database.path = Database.dataDir + "kuma.db";
+        Database.path = path.join(Database.dataDir, "kuma.db");
        if (! fs.existsSync(Database.dataDir)) {
            fs.mkdirSync(Database.dataDir, { recursive: true });
        }

-        Database.uploadDir = Database.dataDir + "upload/";
+        Database.uploadDir = path.join(Database.dataDir, "upload/");

        if (! fs.existsSync(Database.uploadDir)) {
            fs.mkdirSync(Database.uploadDir, { recursive: true });
        }

+        // Create screenshot dir
+        Database.screenshotDir = path.join(Database.dataDir, "screenshots/");
+        if (! fs.existsSync(Database.screenshotDir)) {
+            fs.mkdirSync(Database.screenshotDir, { recursive: true });
+        }
+
+        Database.dockerTLSDir = path.join(Database.dataDir, "docker-tls/");
+        if (! fs.existsSync(Database.dockerTLSDir)) {
+            fs.mkdirSync(Database.dockerTLSDir, { recursive: true });
+        }
+
        log.info("db", `Data Dir: ${Database.dataDir}`);
    }

@@ -164,12 +177,12 @@ class Database {
            await R.exec("PRAGMA journal_mode = WAL");
        }
        await R.exec("PRAGMA cache_size = -12000");
-        await R.exec("PRAGMA auto_vacuum = FULL");
+        await R.exec("PRAGMA auto_vacuum = INCREMENTAL");

        // This ensures that an operating system crash or power failure will not corrupt the database.
        // FULL synchronous is very safe, but it is also slower.
        // Read more: https://sqlite.org/pragma.html#pragma_synchronous
-        await R.exec("PRAGMA synchronous = FULL");
+        await R.exec("PRAGMA synchronous = NORMAL");

        if (!noLog) {
            log.info("db", "SQLite config:");
@@ -197,15 +210,7 @@ class Database {
        } else {
            log.info("db", "Database patch is needed");

-            try {
-                this.backup(version);
-            } catch (e) {
-                log.error("db", e);
-                log.error("db", "Unable to create a backup before patching the database. Please make sure you have enough space and permission.");
-                process.exit(1);
-            }
-
-            // Try catch anything here, if gone wrong, restore the backup
+            // Try catch anything here
            try {
                for (let i = version + 1; i <= this.latestVersion; i++) {
                    const sqlFile = `./db/patch${i}.sql`;
@@ -221,7 +226,6 @@ class Database {
                log.error("db", "Start Uptime-Kuma failed due to issue patching the database");
                log.error("db", "Please submit a bug report if you still encounter the problem after restart: https://github.com/louislam/uptime-kuma/issues");

-                this.restore();
                process.exit(1);
            }
        }
@@ -263,8 +267,6 @@ class Database {
            log.error("db", "Start Uptime-Kuma failed due to issue patching the database");
            log.error("db", "Please submit the bug report if you still encounter the problem after restart: https://github.com/louislam/uptime-kuma/issues");

-            this.restore();
-
            process.exit(1);
        }

@@ -366,8 +368,6 @@ class Database {
                }
            }

-            this.backup(dayjs().format("YYYYMMDDHHmmss"));
-
            log.info("db", sqlFilename + " is patching");
            this.patched = true;
            await this.importSQLFile("./db/" + sqlFilename);
@@ -433,6 +433,9 @@ class Database {

        log.info("db", "Closing the database");

+        // Flush WAL to main database
+        await R.exec("PRAGMA wal_checkpoint(TRUNCATE)");
+
        while (true) {
            Database.noReject = true;
            await R.close();
@@ -449,100 +452,6 @@ class Database {
        process.removeListener("unhandledRejection", listener);
    }

-    /**
-     * One backup one time in this process.
-     * Reset this.backupPath if you want to backup again
-     * @param {string} version Version code of backup
-     */
-    static backup(version) {
-        if (! this.backupPath) {
-            log.info("db", "Backing up the database");
-            this.backupPath = this.dataDir + "kuma.db.bak" + version;
-            fs.copyFileSync(Database.path, this.backupPath);
-
-            const shmPath = Database.path + "-shm";
-            if (fs.existsSync(shmPath)) {
-                this.backupShmPath = shmPath + ".bak" + version;
-                fs.copyFileSync(shmPath, this.backupShmPath);
-            }
-
-            const walPath = Database.path + "-wal";
-            if (fs.existsSync(walPath)) {
-                this.backupWalPath = walPath + ".bak" + version;
-                fs.copyFileSync(walPath, this.backupWalPath);
-            }
-
-            // Double confirm if all files actually backup
-            if (!fs.existsSync(this.backupPath)) {
-                throw new Error("Backup failed! " + this.backupPath);
-            }
-
-            if (fs.existsSync(shmPath)) {
-                if (!fs.existsSync(this.backupShmPath)) {
-                    throw new Error("Backup failed! " + this.backupShmPath);
-                }
-            }
-
-            if (fs.existsSync(walPath)) {
-                if (!fs.existsSync(this.backupWalPath)) {
-                    throw new Error("Backup failed! " + this.backupWalPath);
-                }
-            }
-        }
-    }
-
-    /** Restore from most recent backup */
-    static restore() {
-        if (this.backupPath) {
-            log.error("db", "Patching the database failed!!! Restoring the backup");
-
-            const shmPath = Database.path + "-shm";
-            const walPath = Database.path + "-wal";
-
-            // Make sure we have a backup to restore before deleting old db
-            if (
-                !fs.existsSync(this.backupPath)
-                && !fs.existsSync(shmPath)
-                && !fs.existsSync(walPath)
-            ) {
-                log.error("db", "Backup file not found! Leaving database in failed state.");
-                process.exit(1);
-            }
-
-            // Delete patch failed db
-            try {
-                if (fs.existsSync(Database.path)) {
-                    fs.unlinkSync(Database.path);
-                }
-
-                if (fs.existsSync(shmPath)) {
-                    fs.unlinkSync(shmPath);
-                }
-
-                if (fs.existsSync(walPath)) {
-                    fs.unlinkSync(walPath);
-                }
-            } catch (e) {
-                log.error("db", "Restore failed; you may need to restore the backup manually");
-                process.exit(1);
-            }
-
-            // Restore backup
-            fs.copyFileSync(this.backupPath, Database.path);
-
-            if (this.backupShmPath) {
-                fs.copyFileSync(this.backupShmPath, shmPath);
-            }
-
-            if (this.backupWalPath) {
-                fs.copyFileSync(this.backupWalPath, walPath);
-            }
-
-        } else {
-            log.info("db", "Nothing to restore");
-        }
-    }
-
    /** Get the size of the database */
    static getSize() {
        log.debug("db", "Database.getSize()");
--- a/server/docker.js
+++ b/server/docker.js
@@ -2,8 +2,16 @@ const axios = require("axios");
 const { R } = require("redbean-node");
 const version = require("../package.json").version;
 const https = require("https");
+const fs = require("fs");
+const path = require("path");
+const Database = require("./database");

 class DockerHost {
+
+    static CertificateFileNameCA = "ca.pem";
+    static CertificateFileNameCert = "cert.pem";
+    static CertificateFileNameKey = "key.pem";
+
    /**
     * Save a docker host
     * @param {Object} dockerHost Docker host to save
@@ -66,10 +74,6 @@ class DockerHost {
                "Accept": "*/*",
                "User-Agent": "Uptime-Kuma/" + version
            },
-            httpsAgent: new https.Agent({
-                maxCachedSessions: 0,      // Use Custom agent to disable session reuse (https://github.com/nodejs/node/issues/3940)
-                rejectUnauthorized: false,
-            }),
        };

        if (dockerHost.dockerType === "socket") {
@@ -77,6 +81,7 @@ class DockerHost {
        } else if (dockerHost.dockerType === "tcp") {
            options.baseURL = DockerHost.patchDockerURL(dockerHost.dockerDaemon);
        }
+        options.httpsAgent = new https.Agent(DockerHost.getHttpsAgentOptions(dockerHost.dockerType, options.baseURL));

        let res = await axios.request(options);

@@ -111,6 +116,53 @@ class DockerHost {
        }
        return url;
    }
+
+    /**
+     * Returns HTTPS agent options with client side TLS parameters if certificate files
+     * for the given host are available under a predefined directory path.
+     *
+     * The base path where certificates are looked for can be set with the
+     * 'DOCKER_TLS_DIR_PATH' environmental variable or defaults to 'data/docker-tls/'.
+     *
+     * If a directory in this path exists with a name matching the FQDN of the docker host
+     * (e.g. the FQDN of 'https://example.com:2376' is 'example.com' so the directory
+     * 'data/docker-tls/example.com/' would be searched for certificate files),
+     * then 'ca.pem', 'key.pem' and 'cert.pem' files are included in the agent options.
+     * File names can also be overridden via 'DOCKER_TLS_FILE_NAME_(CA|KEY|CERT)'.
+     *
+     * @param {String} dockerType i.e. "tcp" or "socket"
+     * @param {String} url The docker host URL rewritten to https://
+     * @return {Object}
+     * */
+    static getHttpsAgentOptions(dockerType, url) {
+        let baseOptions = {
+            maxCachedSessions: 0,
+            rejectUnauthorized: true
+        };
+        let certOptions = {};
+
+        let dirName = (new URL(url)).hostname;
+
+        let caPath = path.join(Database.dockerTLSDir, dirName, DockerHost.CertificateFileNameCA);
+        let certPath = path.join(Database.dockerTLSDir, dirName, DockerHost.CertificateFileNameCert);
+        let keyPath = path.join(Database.dockerTLSDir, dirName, DockerHost.CertificateFileNameKey);
+
+        if (dockerType === "tcp" && fs.existsSync(caPath) && fs.existsSync(certPath) && fs.existsSync(keyPath)) {
+            let ca = fs.readFileSync(caPath);
+            let key = fs.readFileSync(keyPath);
+            let cert = fs.readFileSync(certPath);
+            certOptions = {
+                ca,
+                key,
+                cert
+            };
+        }
+
+        return {
+            ...baseOptions,
+            ...certOptions
+        };
+    }
 }

 module.exports = {
--- a/server/git.js
+++ b/server/git.js
@@ -1,24 +0,0 @@
-const childProcess = require("child_process");
-
-class Git {
-
-    static clone(repoURL, cwd, targetDir = ".") {
-        let result = childProcess.spawnSync("git", [
-            "clone",
-            repoURL,
-            targetDir,
-        ], {
-            cwd: cwd,
-        });
-
-        if (result.status !== 0) {
-            throw new Error(result.stderr.toString("utf-8"));
-        } else {
-            return result.stdout.toString("utf-8") + result.stderr.toString("utf-8");
-        }
-    }
-}
-
-module.exports = {
-    Git,
-};
--- a/server/jobs.js
+++ b/server/jobs.js
@@ -1,41 +1,51 @@
-const path = require("path");
-const Bree = require("bree");
-const { SHARE_ENV } = require("worker_threads");
-const { log } = require("../src/util");
-let bree;
+const { UptimeKumaServer } = require("./uptime-kuma-server");
+const { clearOldData } = require("./jobs/clear-old-data");
+const { incrementalVacuum } = require("./jobs/incremental-vacuum");
+const Cron = require("croner");
+
 const jobs = [
    {
        name: "clear-old-data",
-        interval: "at 03:14",
+        interval: "14 03 * * *",
+        jobFunc: clearOldData,
+        croner: null,
    },
+    {
+        name: "incremental-vacuum",
+        interval: "*/5 * * * *",
+        jobFunc: incrementalVacuum,
+        croner: null,
+    }
 ];

 /**
 * Initialize background jobs
- * @param {Object} args Arguments to pass to workers
- * @returns {Bree}
+ * @returns {Promise<void>}
 */
-const initBackgroundJobs = function (args) {
-    bree = new Bree({
-        root: path.resolve("server", "jobs"),
-        jobs,
-        worker: {
-            env: SHARE_ENV,
-            workerData: args,
-        },
-        workerMessageHandler: (message) => {
-            log.info("jobs", message);
-        }
-    });
+const initBackgroundJobs = async function () {
+    const timezone = await UptimeKumaServer.getInstance().getTimezone();
+
+    for (const job of jobs) {
+        const cornerJob = new Cron(
+            job.interval,
+            {
+                name: job.name,
+                timezone,
+            },
+            job.jobFunc,
+        );
+        job.croner = cornerJob;
+    }

-    bree.start();
-    return bree;
 };

 /** Stop all background jobs if running */
 const stopBackgroundJobs = function () {
-    if (bree) {
-        bree.stop();
+    for (const job of jobs) {
+        if (job.croner) {
+            job.croner.stop();
+            job.croner = null;
+        }
    }
 };

--- a/server/jobs/clear-old-data.js
+++ b/server/jobs/clear-old-data.js
@@ -1,12 +1,15 @@
-const { log, exit, connectDb } = require("./util-worker");
 const { R } = require("redbean-node");
+const { log } = require("../../src/util");
 const { setSetting, setting } = require("../util-server");

 const DEFAULT_KEEP_PERIOD = 180;

-(async () => {
-    await connectDb();
+/**
+ * Clears old data from the heartbeat table of the database.
+ * @return {Promise<void>} A promise that resolves when the data has been cleared.
+ */

+const clearOldData = async () => {
    let period = await setting("keepDataPeriodDays");

    // Set Default Period
@@ -20,26 +23,30 @@ const DEFAULT_KEEP_PERIOD = 180;
    try {
        parsedPeriod = parseInt(period);
    } catch (_) {
-        log("Failed to parse setting, resetting to default..");
+        log.warn("clearOldData", "Failed to parse setting, resetting to default..");
        await setSetting("keepDataPeriodDays", DEFAULT_KEEP_PERIOD, "general");
        parsedPeriod = DEFAULT_KEEP_PERIOD;
    }

    if (parsedPeriod < 1) {
-        log(`Data deletion has been disabled as period is less than 1. Period is ${parsedPeriod} days.`);
+        log.info("clearOldData", `Data deletion has been disabled as period is less than 1. Period is ${parsedPeriod} days.`);
    } else {

-        log(`Clearing Data older than ${parsedPeriod} days...`);
+        log.debug("clearOldData", `Clearing Data older than ${parsedPeriod} days...`);

        try {
            await R.exec(
                "DELETE FROM heartbeat WHERE time < DATETIME('now', '-' || ? || ' days') ",
                [ parsedPeriod ]
            );
+
+            await R.exec("PRAGMA optimize;");
        } catch (e) {
-            log(`Failed to clear old data: ${e.message}`);
+            log.error("clearOldData", `Failed to clear old data: ${e.message}`);
        }
    }
+};

-    exit();
-})();
+module.exports = {
+    clearOldData,
+};
--- a/server/jobs/incremental-vacuum.js
+++ b/server/jobs/incremental-vacuum.js
@@ -0,0 +1,21 @@
+const { R } = require("redbean-node");
+const { log } = require("../../src/util");
+
+/**
+ * Run incremental_vacuum and checkpoint the WAL.
+ * @return {Promise<void>} A promise that resolves when the process is finished.
+ */
+
+const incrementalVacuum = async () => {
+    try {
+        log.debug("incrementalVacuum", "Running incremental_vacuum and wal_checkpoint(PASSIVE)...");
+        await R.exec("PRAGMA incremental_vacuum(200)");
+        await R.exec("PRAGMA wal_checkpoint(PASSIVE)");
+    } catch (e) {
+        log.error("incrementalVacuum", `Failed: ${e.message}`);
+    }
+};
+
+module.exports = {
+    incrementalVacuum,
+};
--- a/server/jobs/util-worker.js
+++ b/server/jobs/util-worker.js
@@ -1,50 +0,0 @@
-const { parentPort, workerData } = require("worker_threads");
-const Database = require("../database");
-const path = require("path");
-
-/**
- * Send message to parent process for logging
- * since worker_thread does not have access to stdout, this is used
- * instead of console.log()
- * @param {any} any The message to log
- */
-const log = function (any) {
-    if (parentPort) {
-        parentPort.postMessage(any);
-    }
-};
-
-/**
- * Exit the worker process
- * @param {number} error The status code to exit
- */
-const exit = function (error) {
-    if (error && error !== 0) {
-        process.exit(error);
-    } else {
-        if (parentPort) {
-            parentPort.postMessage("done");
-        } else {
-            process.exit(0);
-        }
-    }
-};
-
-/** Connects to the database */
-const connectDb = async function () {
-    const dbPath = path.join(
-        process.env.DATA_DIR || workerData["data-dir"] || "./data/"
-    );
-
-    Database.init({
-        "data-dir": dbPath,
-    });
-
-    await Database.connect();
-};
-
-module.exports = {
-    log,
-    exit,
-    connectDb,
-};
--- a/server/model/group.js
+++ b/server/model/group.js
@@ -9,12 +9,12 @@ class Group extends BeanModel {
     * @param {boolean} [showTags=false] Should the JSON include monitor tags
     * @returns {Object}
     */
-    async toPublicJSON(showTags = false) {
+    async toPublicJSON(showTags = false, certExpiry = false) {
        let monitorBeanList = await this.getMonitorList();
        let monitorList = [];

        for (let bean of monitorBeanList) {
-            monitorList.push(await bean.toPublicJSON(showTags));
+            monitorList.push(await bean.toPublicJSON(showTags, certExpiry));
        }

        return {
--- a/server/model/maintenance.js
+++ b/server/model/maintenance.js
@@ -1,8 +1,10 @@
 const { BeanModel } = require("redbean-node/dist/bean-model");
-const { parseTimeObject, parseTimeFromTimeObject, utcToLocal, localToUTC, log } = require("../../src/util");
-const { timeObjectToUTC, timeObjectToLocal } = require("../util-server");
+const { parseTimeObject, parseTimeFromTimeObject, log } = require("../../src/util");
 const { R } = require("redbean-node");
 const dayjs = require("dayjs");
+const Cron = require("croner");
+const { UptimeKumaServer } = require("../uptime-kuma-server");
+const apicache = require("../modules/apicache");

 class Maintenance extends BeanModel {

@@ -15,16 +17,19 @@ class Maintenance extends BeanModel {

        let dateRange = [];
        if (this.start_date) {
-            dateRange.push(utcToLocal(this.start_date));
-            if (this.end_date) {
-                dateRange.push(utcToLocal(this.end_date));
-            }
+            dateRange.push(this.start_date);
+        } else {
+            dateRange.push(null);
+        }
+
+        if (this.end_date) {
+            dateRange.push(this.end_date);
        }

        let timeRange = [];
-        let startTime = timeObjectToLocal(parseTimeObject(this.start_time));
+        let startTime = parseTimeObject(this.start_time);
        timeRange.push(startTime);
-        let endTime = timeObjectToLocal(parseTimeObject(this.end_time));
+        let endTime = parseTimeObject(this.end_time);
        timeRange.push(endTime);

        let obj = {
@@ -39,12 +44,44 @@ class Maintenance extends BeanModel {
            weekdays: (this.weekdays) ? JSON.parse(this.weekdays) : [],
            daysOfMonth: (this.days_of_month) ? JSON.parse(this.days_of_month) : [],
            timeslotList: [],
+            cron: this.cron,
+            duration: this.duration,
+            durationMinutes: parseInt(this.duration / 60),
+            timezone: await this.getTimezone(),         // Only valid timezone
+            timezoneOption: this.timezone,               // Mainly for dropdown menu, because there is a option "SAME_AS_SERVER"
+            timezoneOffset: await this.getTimezoneOffset(),
+            status: await this.getStatus(),
        };

-        const timeslotList = await this.getTimeslotList();
+        if (this.strategy === "manual") {
+            // Do nothing, no timeslots
+        } else if (this.strategy === "single") {
+            obj.timeslotList.push({
+                startDate: this.start_date,
+                endDate: this.end_date,
+            });
+        } else {
+            // Should be cron or recurring here
+            if (this.beanMeta.job) {
+                let runningTimeslot = this.getRunningTimeslot();

-        for (let timeslot of timeslotList) {
-            obj.timeslotList.push(await timeslot.toPublicJSON());
+                if (runningTimeslot) {
+                    obj.timeslotList.push(runningTimeslot);
+                }
+
+                let nextRunDate = this.beanMeta.job.nextRun();
+                if (nextRunDate) {
+                    let startDateDayjs = dayjs(nextRunDate);
+
+                    let startDate = startDateDayjs.toISOString();
+                    let endDate = startDateDayjs.add(this.duration, "second").toISOString();
+
+                    obj.timeslotList.push({
+                        startDate,
+                        endDate,
+                    });
+                }
+            }
        }

        if (!Array.isArray(obj.weekdays)) {
@@ -55,54 +92,9 @@ class Maintenance extends BeanModel {
            obj.daysOfMonth = [];
        }

-        // Maintenance Status
-        if (!obj.active) {
-            obj.status = "inactive";
-        } else if (obj.strategy === "manual") {
-            obj.status = "under-maintenance";
-        } else if (obj.timeslotList.length > 0) {
-            let currentTimestamp = dayjs().unix();
-
-            for (let timeslot of obj.timeslotList) {
-                if (dayjs.utc(timeslot.startDate).unix() <= currentTimestamp && dayjs.utc(timeslot.endDate).unix() >= currentTimestamp) {
-                    log.debug("timeslot", "Timeslot ID: " + timeslot.id);
-                    log.debug("timeslot", "currentTimestamp:" + currentTimestamp);
-                    log.debug("timeslot", "timeslot.start_date:" + dayjs.utc(timeslot.startDate).unix());
-                    log.debug("timeslot", "timeslot.end_date:" + dayjs.utc(timeslot.endDate).unix());
-
-                    obj.status = "under-maintenance";
-                    break;
-                }
-            }
-
-            if (!obj.status) {
-                obj.status = "scheduled";
-            }
-        } else if (obj.timeslotList.length === 0) {
-            obj.status = "ended";
-        } else {
-            obj.status = "unknown";
-        }
-
        return obj;
    }

-    /**
-     * Only get future or current timeslots only
-     * @returns {Promise<[]>}
-     */
-    async getTimeslotList() {
-        return R.convertToBeans("maintenance_timeslot", await R.getAll(`
-            SELECT maintenance_timeslot.*
-            FROM maintenance_timeslot, maintenance
-            WHERE maintenance_timeslot.maintenance_id = maintenance.id
-            AND maintenance.id = ?
-            AND ${Maintenance.getActiveAndFutureMaintenanceSQLCondition()}
-        `, [
-            this.id
-        ]));
-    }
-
    /**
     * Return an object that ready to parse to JSON
     * @param {string} timezone If not specified, the timeRange will be in UTC
@@ -126,7 +118,7 @@ class Maintenance extends BeanModel {

    /**
     * Get a list of days in month that maintenance is active for
-     * @returns {number[]} Array of active days in month
+     * @returns {number[]|string[]} Array of active days in month
     */
    getDayOfMonthList() {
        return JSON.parse(this.days_of_month).sort(function (a, b) {
@@ -135,26 +127,10 @@ class Maintenance extends BeanModel {
    }

    /**
-     * Get the start date and time for maintenance
-     * @returns {dayjs.Dayjs} Start date and time
-     */
-    getStartDateTime() {
-        let startOfTheDay = dayjs.utc(this.start_date).format("HH:mm");
-        log.debug("timeslot", "startOfTheDay: " + startOfTheDay);
-
-        // Start Time
-        let startTimeSecond = dayjs.utc(this.start_time, "HH:mm").diff(dayjs.utc(startOfTheDay, "HH:mm"), "second");
-        log.debug("timeslot", "startTime: " + startTimeSecond);
-
-        // Bake StartDate + StartTime = Start DateTime
-        return dayjs.utc(this.start_date).add(startTimeSecond, "second");
-    }
-
-    /**
-     * Get the duraction of maintenance in seconds
+     * Get the duration of maintenance in seconds
     * @returns {number} Duration of maintenance
     */
-    getDuration() {
+    calcDuration() {
        let duration = dayjs.utc(this.end_time, "HH:mm").diff(dayjs.utc(this.start_time, "HH:mm"), "second");
        // Add 24hours if it is across day
        if (duration < 0) {
@@ -169,71 +145,270 @@ class Maintenance extends BeanModel {
     * @param {Object} obj Data to fill bean with
     * @returns {Bean} Filled bean
     */
-    static jsonToBean(bean, obj) {
+    static async jsonToBean(bean, obj) {
        if (obj.id) {
            bean.id = obj.id;
        }

-        // Apply timezone offset to timeRange, as it cannot apply automatically.
-        if (obj.timeRange[0]) {
-            timeObjectToUTC(obj.timeRange[0]);
-            if (obj.timeRange[1]) {
-                timeObjectToUTC(obj.timeRange[1]);
-            }
-        }
-
        bean.title = obj.title;
        bean.description = obj.description;
        bean.strategy = obj.strategy;
        bean.interval_day = obj.intervalDay;
+        bean.timezone = obj.timezoneOption;
        bean.active = obj.active;

        if (obj.dateRange[0]) {
-            bean.start_date = localToUTC(obj.dateRange[0]);
-
-            if (obj.dateRange[1]) {
-                bean.end_date = localToUTC(obj.dateRange[1]);
-            }
+            bean.start_date = obj.dateRange[0];
+        } else {
+            bean.start_date = null;
        }

-        bean.start_time = parseTimeFromTimeObject(obj.timeRange[0]);
-        bean.end_time = parseTimeFromTimeObject(obj.timeRange[1]);
+        if (obj.dateRange[1]) {
+            bean.end_date = obj.dateRange[1];
+        } else {
+            bean.end_date = null;
+        }

-        bean.weekdays = JSON.stringify(obj.weekdays);
-        bean.days_of_month = JSON.stringify(obj.daysOfMonth);
+        if (bean.strategy === "cron") {
+            bean.duration = obj.durationMinutes * 60;
+            bean.cron = obj.cron;
+            this.validateCron(bean.cron);
+        }

+        if (bean.strategy.startsWith("recurring-")) {
+            bean.start_time = parseTimeFromTimeObject(obj.timeRange[0]);
+            bean.end_time = parseTimeFromTimeObject(obj.timeRange[1]);
+            bean.weekdays = JSON.stringify(obj.weekdays);
+            bean.days_of_month = JSON.stringify(obj.daysOfMonth);
+            await bean.generateCron();
+            this.validateCron(bean.cron);
+        }
        return bean;
    }

    /**
-     * SQL conditions for active maintenance
-     * @returns {string}
+     * Throw error if cron is invalid
+     * @param cron
+     * @returns {Promise<void>}
     */
-    static getActiveMaintenanceSQLCondition() {
-        return `
-            (
-                (maintenance_timeslot.start_date <= DATETIME('now')
-                AND maintenance_timeslot.end_date >= DATETIME('now')
-                AND maintenance.active = 1)
-                OR
-                (maintenance.strategy = 'manual' AND active = 1)
-            )
-        `;
+    static async validateCron(cron) {
+        let job = new Cron(cron, () => {});
+        job.stop();
    }

    /**
-     * SQL conditions for active and future maintenance
-     * @returns {string}
+     * Run the cron
     */
-    static getActiveAndFutureMaintenanceSQLCondition() {
-        return `
-            (
-                ((maintenance_timeslot.end_date >= DATETIME('now')
-                AND maintenance.active = 1)
-                OR
-                (maintenance.strategy = 'manual' AND active = 1))
-            )
-        `;
+    async run(throwError = false) {
+        if (this.beanMeta.job) {
+            log.debug("maintenance", "Maintenance is already running, stop it first. id: " + this.id);
+            this.stop();
+        }
+
+        log.debug("maintenance", "Run maintenance id: " + this.id);
+
+        // 1.21.2 migration
+        if (!this.cron) {
+            await this.generateCron();
+            if (!this.timezone) {
+                this.timezone = "UTC";
+            }
+            if (this.cron) {
+                await R.store(this);
+            }
+        }
+
+        if (this.strategy === "manual") {
+            // Do nothing, because it is controlled by the user
+        } else if (this.strategy === "single") {
+            this.beanMeta.job = new Cron(this.start_date, { timezone: await this.getTimezone() }, () => {
+                log.info("maintenance", "Maintenance id: " + this.id + " is under maintenance now");
+                UptimeKumaServer.getInstance().sendMaintenanceListByUserID(this.user_id);
+                apicache.clear();
+            });
+        } else if (this.cron != null) {
+            // Here should be cron or recurring
+            try {
+                this.beanMeta.status = "scheduled";
+
+                let startEvent = (customDuration = 0) => {
+                    log.info("maintenance", "Maintenance id: " + this.id + " is under maintenance now");
+
+                    this.beanMeta.status = "under-maintenance";
+                    clearTimeout(this.beanMeta.durationTimeout);
+
+                    // Check if duration is still in the window. If not, use the duration from the current time to the end of the window
+                    let duration;
+
+                    if (customDuration > 0) {
+                        duration = customDuration;
+                    } else if (this.end_date) {
+                        let d = dayjs(this.end_date).diff(dayjs(), "second");
+                        if (d < this.duration) {
+                            duration = d * 1000;
+                        }
+                    } else {
+                        duration = this.duration * 1000;
+                    }
+
+                    UptimeKumaServer.getInstance().sendMaintenanceListByUserID(this.user_id);
+
+                    this.beanMeta.durationTimeout = setTimeout(() => {
+                        // End of maintenance for this timeslot
+                        this.beanMeta.status = "scheduled";
+                        UptimeKumaServer.getInstance().sendMaintenanceListByUserID(this.user_id);
+                    }, duration);
+                };
+
+                // Create Cron
+                this.beanMeta.job = new Cron(this.cron, {
+                    timezone: await this.getTimezone(),
+                }, startEvent);
+
+                // Continue if the maintenance is still in the window
+                let runningTimeslot = this.getRunningTimeslot();
+                let current = dayjs();
+
+                if (runningTimeslot) {
+                    let duration = dayjs(runningTimeslot.endDate).diff(current, "second") * 1000;
+                    log.debug("maintenance", "Maintenance id: " + this.id + " Remaining duration: " + duration + "ms");
+                    startEvent(duration);
+                }
+
+            } catch (e) {
+                log.error("maintenance", "Error in maintenance id: " + this.id);
+                log.error("maintenance", "Cron: " + this.cron);
+                log.error("maintenance", e);
+
+                if (throwError) {
+                    throw e;
+                }
+            }
+
+        } else {
+            log.error("maintenance", "Maintenance id: " + this.id + " has no cron");
+        }
+    }
+
+    getRunningTimeslot() {
+        let start = dayjs(this.beanMeta.job.nextRun(dayjs().add(-this.duration, "second").toDate()));
+        let end = start.add(this.duration, "second");
+        let current = dayjs();
+
+        if (current.isAfter(start) && current.isBefore(end)) {
+            return {
+                startDate: start.toISOString(),
+                endDate: end.toISOString(),
+            };
+        } else {
+            return null;
+        }
+    }
+
+    stop() {
+        if (this.beanMeta.job) {
+            this.beanMeta.job.stop();
+            delete this.beanMeta.job;
+        }
+    }
+
+    async isUnderMaintenance() {
+        return (await this.getStatus()) === "under-maintenance";
+    }
+
+    async getTimezone() {
+        if (!this.timezone || this.timezone === "SAME_AS_SERVER") {
+            return await UptimeKumaServer.getInstance().getTimezone();
+        }
+        return this.timezone;
+    }
+
+    async getTimezoneOffset() {
+        return dayjs.tz(dayjs(), await this.getTimezone()).format("Z");
+    }
+
+    async getStatus() {
+        if (!this.active) {
+            return "inactive";
+        }
+
+        if (this.strategy === "manual") {
+            return "under-maintenance";
+        }
+
+        // Check if the maintenance is started
+        if (this.start_date && dayjs().isBefore(dayjs.tz(this.start_date, await this.getTimezone()))) {
+            return "scheduled";
+        }
+
+        // Check if the maintenance is ended
+        if (this.end_date && dayjs().isAfter(dayjs.tz(this.end_date, await this.getTimezone()))) {
+            return "ended";
+        }
+
+        if (this.strategy === "single") {
+            return "under-maintenance";
+        }
+
+        if (!this.beanMeta.status) {
+            return "unknown";
+        }
+
+        return this.beanMeta.status;
+    }
+
+    /**
+     * Generate Cron for recurring maintenance
+     * @returns {Promise<void>}
+     */
+    async generateCron() {
+        log.info("maintenance", "Generate cron for maintenance id: " + this.id);
+
+        if (this.strategy === "cron") {
+            // Do nothing for cron
+        } else if (!this.strategy.startsWith("recurring-")) {
+            this.cron = "";
+        } else if (this.strategy === "recurring-interval") {
+            let array = this.start_time.split(":");
+            let hour = parseInt(array[0]);
+            let minute = parseInt(array[1]);
+            this.cron = minute + " " + hour + " */" + this.interval_day + " * *";
+            this.duration = this.calcDuration();
+            log.debug("maintenance", "Cron: " + this.cron);
+            log.debug("maintenance", "Duration: " + this.duration);
+        } else if (this.strategy === "recurring-weekday") {
+            let list = this.getDayOfWeekList();
+            let array = this.start_time.split(":");
+            let hour = parseInt(array[0]);
+            let minute = parseInt(array[1]);
+            this.cron = minute + " " + hour + " * * " + list.join(",");
+            this.duration = this.calcDuration();
+        } else if (this.strategy === "recurring-day-of-month") {
+            let list = this.getDayOfMonthList();
+            let array = this.start_time.split(":");
+            let hour = parseInt(array[0]);
+            let minute = parseInt(array[1]);
+
+            let dayList = [];
+
+            for (let day of list) {
+                if (typeof day === "string" && day.startsWith("lastDay")) {
+                    if (day === "lastDay1") {
+                        dayList.push("L");
+                    }
+                    // Unfortunately, lastDay2-4 is not supported by cron
+                } else {
+                    dayList.push(day);
+                }
+            }
+
+            // Remove duplicate
+            dayList = [ ...new Set(dayList) ];
+
+            this.cron = minute + " " + hour + " " + dayList.join(",") + " * *";
+            this.duration = this.calcDuration();
+        }
+
    }
 }

--- a/server/model/maintenance_timeslot.js
+++ b/server/model/maintenance_timeslot.js
@@ -1,198 +0,0 @@
-const { BeanModel } = require("redbean-node/dist/bean-model");
-const { R } = require("redbean-node");
-const dayjs = require("dayjs");
-const { log, utcToLocal, SQL_DATETIME_FORMAT_WITHOUT_SECOND, localToUTC } = require("../../src/util");
-const { UptimeKumaServer } = require("../uptime-kuma-server");
-
-class MaintenanceTimeslot extends BeanModel {
-
-    /**
-     * Return an object that ready to parse to JSON for public
-     * Only show necessary data to public
-     * @returns {Object}
-     */
-    async toPublicJSON() {
-        const serverTimezoneOffset = UptimeKumaServer.getInstance().getTimezoneOffset();
-
-        const obj = {
-            id: this.id,
-            startDate: this.start_date,
-            endDate: this.end_date,
-            startDateServerTimezone: utcToLocal(this.start_date, SQL_DATETIME_FORMAT_WITHOUT_SECOND),
-            endDateServerTimezone: utcToLocal(this.end_date, SQL_DATETIME_FORMAT_WITHOUT_SECOND),
-            serverTimezoneOffset,
-        };
-
-        return obj;
-    }
-
-    /**
-     * Return an object that ready to parse to JSON
-     * @returns {Object}
-     */
-    async toJSON() {
-        return await this.toPublicJSON();
-    }
-
-    /**
-     * @param {Maintenance} maintenance
-     * @param {dayjs} minDate (For recurring type only) Generate a next timeslot from this date.
-     * @param {boolean} removeExist Remove existing timeslot before create
-     * @returns {Promise<MaintenanceTimeslot>}
-     */
-    static async generateTimeslot(maintenance, minDate = null, removeExist = false) {
-        if (removeExist) {
-            await R.exec("DELETE FROM maintenance_timeslot WHERE maintenance_id = ? ", [
-                maintenance.id
-            ]);
-        }
-
-        if (maintenance.strategy === "manual") {
-            log.debug("maintenance", "No need to generate timeslot for manual type");
-
-        } else if (maintenance.strategy === "single") {
-            let bean = R.dispense("maintenance_timeslot");
-            bean.maintenance_id = maintenance.id;
-            bean.start_date = maintenance.start_date;
-            bean.end_date = maintenance.end_date;
-            bean.generated_next = true;
-            return await R.store(bean);
-
-        } else if (maintenance.strategy === "recurring-interval") {
-            // Prevent dead loop, in case interval_day is not set
-            if (!maintenance.interval_day || maintenance.interval_day <= 0) {
-                maintenance.interval_day = 1;
-            }
-
-            return await this.handleRecurringType(maintenance, minDate, (startDateTime) => {
-                return startDateTime.add(maintenance.interval_day, "day");
-            }, () => {
-                return true;
-            });
-
-        } else if (maintenance.strategy === "recurring-weekday") {
-            let dayOfWeekList = maintenance.getDayOfWeekList();
-            log.debug("timeslot", dayOfWeekList);
-
-            if (dayOfWeekList.length <= 0) {
-                log.debug("timeslot", "No weekdays selected?");
-                return null;
-            }
-
-            const isValid = (startDateTime) => {
-                log.debug("timeslot", "nextDateTime: " + startDateTime);
-
-                let day = startDateTime.local().day();
-                log.debug("timeslot", "nextDateTime.day(): " + day);
-
-                return dayOfWeekList.includes(day);
-            };
-
-            return await this.handleRecurringType(maintenance, minDate, (startDateTime) => {
-                while (true) {
-                    startDateTime = startDateTime.add(1, "day");
-
-                    if (isValid(startDateTime)) {
-                        return startDateTime;
-                    }
-                }
-            }, isValid);
-
-        } else if (maintenance.strategy === "recurring-day-of-month") {
-            let dayOfMonthList = maintenance.getDayOfMonthList();
-            if (dayOfMonthList.length <= 0) {
-                log.debug("timeslot", "No day selected?");
-                return null;
-            }
-
-            const isValid = (startDateTime) => {
-                let day = parseInt(startDateTime.local().format("D"));
-
-                log.debug("timeslot", "day: " + day);
-
-                // Check 1-31
-                if (dayOfMonthList.includes(day)) {
-                    return startDateTime;
-                }
-
-                // Check "lastDay1","lastDay2"...
-                let daysInMonth = startDateTime.daysInMonth();
-                let lastDayList = [];
-
-                // Small first, e.g. 28 > 29 > 30 > 31
-                for (let i = 4; i >= 1; i--) {
-                    if (dayOfMonthList.includes("lastDay" + i)) {
-                        lastDayList.push(daysInMonth - i + 1);
-                    }
-                }
-                log.debug("timeslot", lastDayList);
-                return lastDayList.includes(day);
-            };
-
-            return await this.handleRecurringType(maintenance, minDate, (startDateTime) => {
-                while (true) {
-                    startDateTime = startDateTime.add(1, "day");
-                    if (isValid(startDateTime)) {
-                        return startDateTime;
-                    }
-                }
-            }, isValid);
-        } else {
-            throw new Error("Unknown maintenance strategy");
-        }
-    }
-
-    /**
-     * Generate a next timeslot for all recurring types
-     * @param maintenance
-     * @param minDate
-     * @param {function} nextDayCallback The logic how to get the next possible day
-     * @param {function} isValidCallback Check the day whether is matched the current strategy
-     * @returns {Promise<null|MaintenanceTimeslot>}
-     */
-    static async handleRecurringType(maintenance, minDate, nextDayCallback, isValidCallback) {
-        let bean = R.dispense("maintenance_timeslot");
-
-        let duration = maintenance.getDuration();
-        let startDateTime = maintenance.getStartDateTime();
-        let endDateTime;
-
-        // Keep generating from the first possible date, until it is ok
-        while (true) {
-            log.debug("timeslot", "startDateTime: " + startDateTime.format());
-
-            // Handling out of effective date range
-            if (startDateTime.diff(dayjs.utc(maintenance.end_date)) > 0) {
-                log.debug("timeslot", "Out of effective date range");
-                return null;
-            }
-
-            endDateTime = startDateTime.add(duration, "second");
-
-            // If endDateTime is out of effective date range, use the end datetime from effective date range
-            if (endDateTime.diff(dayjs.utc(maintenance.end_date)) > 0) {
-                endDateTime = dayjs.utc(maintenance.end_date);
-            }
-
-            // If minDate is set, the endDateTime must be bigger than it.
-            // And the endDateTime must be bigger current time
-            // Is valid under current recurring strategy
-            if (
-                (!minDate || endDateTime.diff(minDate) > 0) &&
-                endDateTime.diff(dayjs()) > 0 &&
-                isValidCallback(startDateTime)
-            ) {
-                break;
-            }
-            startDateTime = nextDayCallback(startDateTime);
-        }
-
-        bean.maintenance_id = maintenance.id;
-        bean.start_date = localToUTC(startDateTime);
-        bean.end_date = localToUTC(endDateTime);
-        bean.generated_next = false;
-        return await R.store(bean);
-    }
-}
-
-module.exports = MaintenanceTimeslot;
--- a/server/model/monitor.js
+++ b/server/model/monitor.js
@@ -2,9 +2,11 @@ const https = require("https");
 const dayjs = require("dayjs");
 const axios = require("axios");
 const { Prometheus } = require("../prometheus");
-const { log, UP, DOWN, PENDING, MAINTENANCE, flipStatus, TimeLogger, MAX_INTERVAL_SECOND, MIN_INTERVAL_SECOND } = require("../../src/util");
+const { log, UP, DOWN, PENDING, MAINTENANCE, flipStatus, TimeLogger, MAX_INTERVAL_SECOND, MIN_INTERVAL_SECOND,
+    SQL_DATETIME_FORMAT
+} = require("../../src/util");
 const { tcping, ping, dnsResolve, checkCertificate, checkStatusCode, getTotalClientInRoom, setting, mssqlQuery, postgresQuery, mysqlQuery, mqttAsync, setSetting, httpNtlm, radius, grpcQuery,
-    redisPingAsync, mongodbPing,
+    redisPingAsync, mongodbPing, kafkaProducerAsync, getOidcTokenClientCredentials,
 } = require("../util-server");
 const { R } = require("redbean-node");
 const { BeanModel } = require("redbean-node/dist/bean-model");
@@ -16,9 +18,10 @@ const apicache = require("../modules/apicache");
 const { UptimeKumaServer } = require("../uptime-kuma-server");
 const { CacheableDnsHttpAgent } = require("../cacheable-dns-http-agent");
 const { DockerHost } = require("../docker");
-const Maintenance = require("./maintenance");
 const { UptimeCacheList } = require("../uptime-cache-list");
 const Gamedig = require("gamedig");
+const jsonata = require("jsonata");
+const jwt = require("jsonwebtoken");

 /**
 * status:
@@ -34,11 +37,12 @@ class Monitor extends BeanModel {
     * Only show necessary data to public
     * @returns {Object}
     */
-    async toPublicJSON(showTags = false) {
+    async toPublicJSON(showTags = false, certExpiry = false) {
        let obj = {
            id: this.id,
            name: this.name,
            sendUrl: this.sendUrl,
+            type: this.type,
        };

        if (this.sendUrl) {
@@ -48,6 +52,13 @@ class Monitor extends BeanModel {
        if (showTags) {
            obj.tags = await this.getTags();
        }
+
+        if (certExpiry && this.type === "http") {
+            const { certExpiryDaysRemaining, validCert } = await this.getCertExpiry(this.id);
+            obj.certExpiryDaysRemaining = certExpiryDaysRemaining;
+            obj.validCert = validCert;
+        }
+
        return obj;
    }

@@ -69,22 +80,34 @@ class Monitor extends BeanModel {

        const tags = await this.getTags();

+        let screenshot = null;
+
+        if (this.type === "real-browser") {
+            screenshot = "/screenshots/" + jwt.sign(this.id, UptimeKumaServer.getInstance().jwtSecret) + ".png";
+        }
+
        let data = {
            id: this.id,
            name: this.name,
            description: this.description,
+            pathName: await this.getPathName(),
+            parent: this.parent,
+            childrenIDs: await Monitor.getAllChildrenIDs(this.id),
            url: this.url,
            method: this.method,
            hostname: this.hostname,
            port: this.port,
            maxretries: this.maxretries,
            weight: this.weight,
-            active: this.active,
+            active: await this.isActive(),
+            forceInactive: !await Monitor.isParentActive(this.id),
            type: this.type,
+            timeout: this.timeout,
            interval: this.interval,
            retryInterval: this.retryInterval,
            resendInterval: this.resendInterval,
            keyword: this.keyword,
+            invertKeyword: this.isInvertKeyword(),
            expiryNotification: this.isEnabledExpiryNotification(),
            ignoreTls: this.getIgnoreTls(),
            upsideDown: this.isUpsideDown(),
@@ -112,7 +135,16 @@ class Monitor extends BeanModel {
            radiusCalledStationId: this.radiusCalledStationId,
            radiusCallingStationId: this.radiusCallingStationId,
            game: this.game,
-            httpBodyEncoding: this.httpBodyEncoding
+            gamedigGivenPortOnly: this.getGameDigGivenPortOnly(),
+            httpBodyEncoding: this.httpBodyEncoding,
+            jsonPath: this.jsonPath,
+            expectedValue: this.expectedValue,
+            kafkaProducerTopic: this.kafkaProducerTopic,
+            kafkaProducerBrokers: JSON.parse(this.kafkaProducerBrokers),
+            kafkaProducerSsl: this.kafkaProducerSsl === "1" && true || false,
+            kafkaProducerAllowAutoTopicCreation: this.kafkaProducerAllowAutoTopicCreation === "1" && true || false,
+            kafkaProducerMessage: this.kafkaProducerMessage,
+            screenshot,
        };

        if (includeSensitiveData) {
@@ -124,6 +156,11 @@ class Monitor extends BeanModel {
                grpcMetadata: this.grpcMetadata,
                basic_auth_user: this.basic_auth_user,
                basic_auth_pass: this.basic_auth_pass,
+                oauth_client_id: this.oauth_client_id,
+                oauth_client_secret: this.oauth_client_secret,
+                oauth_token_url: this.oauth_token_url,
+                oauth_scopes: this.oauth_scopes,
+                oauth_auth_method: this.oauth_auth_method,
                pushToken: this.pushToken,
                databaseConnectionString: this.databaseConnectionString,
                radiusUsername: this.radiusUsername,
@@ -133,6 +170,10 @@ class Monitor extends BeanModel {
                mqttPassword: this.mqttPassword,
                authWorkstation: this.authWorkstation,
                authDomain: this.authDomain,
+                tlsCa: this.tlsCa,
+                tlsCert: this.tlsCert,
+                tlsKey: this.tlsKey,
+                kafkaProducerSaslOptions: JSON.parse(this.kafkaProducerSaslOptions),
            };
        }

@@ -140,6 +181,16 @@ class Monitor extends BeanModel {
        return data;
    }

+    /**
+	 * Checks if the monitor is active based on itself and its parents
+	 * @returns {Promise<Boolean>}
+	 */
+    async isActive() {
+        const parentActive = await Monitor.isParentActive(this.id);
+
+        return (this.active === 1) && parentActive;
+    }
+
    /**
     * Get all tags applied to this monitor
     * @returns {Promise<LooseObject<any>[]>}
@@ -148,6 +199,31 @@ class Monitor extends BeanModel {
        return await R.getAll("SELECT mt.*, tag.name, tag.color FROM monitor_tag mt JOIN tag ON mt.tag_id = tag.id WHERE mt.monitor_id = ? ORDER BY tag.name", [ this.id ]);
    }

+    /**
+     * Gets certificate expiry for this monitor
+     * @param {number} monitorID ID of monitor to send
+     * @returns {Promise<LooseObject<any>>}
+     */
+    async getCertExpiry(monitorID) {
+        let tlsInfoBean = await R.findOne("monitor_tls_info", "monitor_id = ?", [
+            monitorID,
+        ]);
+        let tlsInfo;
+        if (tlsInfoBean) {
+            tlsInfo = JSON.parse(tlsInfoBean?.info_json);
+            if (tlsInfo?.valid && tlsInfo?.certInfo?.daysRemaining) {
+                return {
+                    certExpiryDaysRemaining: tlsInfo.certInfo.daysRemaining,
+                    validCert: true
+                };
+            }
+        }
+        return {
+            certExpiryDaysRemaining: "",
+            validCert: false
+        };
+    }
+
    /**
     * Encode user and password to Base64 encoding
     * for HTTP "basic" auth, as per RFC-7617
@@ -181,6 +257,14 @@ class Monitor extends BeanModel {
        return Boolean(this.upsideDown);
    }

+    /**
+     * Parse to boolean
+     * @returns {boolean}
+     */
+    isInvertKeyword() {
+        return Boolean(this.invertKeyword);
+    }
+
    /**
     * Parse to boolean
     * @returns {boolean}
@@ -197,6 +281,10 @@ class Monitor extends BeanModel {
        return JSON.parse(this.accepted_statuscodes_json);
    }

+    getGameDigGivenPortOnly() {
+        return Boolean(this.gamedigGivenPortOnly);
+    }
+
    /**
     * Start monitor
     * @param {Server} io Socket server instance
@@ -255,7 +343,40 @@ class Monitor extends BeanModel {
                if (await Monitor.isUnderMaintenance(this.id)) {
                    bean.msg = "Monitor under maintenance";
                    bean.status = MAINTENANCE;
-                } else if (this.type === "http" || this.type === "keyword") {
+                } else if (this.type === "group") {
+                    const children = await Monitor.getChildren(this.id);
+
+                    if (children.length > 0) {
+                        bean.status = UP;
+                        bean.msg = "All children up and running";
+                        for (const child of children) {
+                            if (!child.active) {
+                                // Ignore inactive childs
+                                continue;
+                            }
+                            const lastBeat = await Monitor.getPreviousHeartbeat(child.id);
+
+                            // Only change state if the monitor is in worse conditions then the ones before
+                            // lastBeat.status could be null
+                            if (!lastBeat) {
+                                bean.status = PENDING;
+                            } else if (bean.status === UP && (lastBeat.status === PENDING || lastBeat.status === DOWN)) {
+                                bean.status = lastBeat.status;
+                            } else if (bean.status === PENDING && lastBeat.status === DOWN) {
+                                bean.status = lastBeat.status;
+                            }
+                        }
+
+                        if (bean.status !== UP) {
+                            bean.msg = "Child inaccessible";
+                        }
+                    } else {
+                        // Set status pending if group is empty
+                        bean.status = PENDING;
+                        bean.msg = "Group empty";
+                    }
+
+                } else if (this.type === "http" || this.type === "keyword" || this.type === "json-query") {
                    // Do not do any queries/high loading things before the "bean.ping"
                    let startTime = dayjs().valueOf();

@@ -267,6 +388,24 @@ class Monitor extends BeanModel {
                        };
                    }

+                    // OIDC: Basic client credential flow.
+                    // Additional grants might be implemented in the future
+                    let oauth2AuthHeader = {};
+                    if (this.auth_method === "oauth2-cc") {
+                        try {
+                            if (this.oauthAccessToken === undefined || new Date(this.oauthAccessToken.expires_at * 1000) <= new Date()) {
+                                log.debug("monitor", `[${this.name}] The oauth access-token undefined or expired. Requesting a new one`);
+                                this.oauthAccessToken = await getOidcTokenClientCredentials(this.oauth_token_url, this.oauth_client_id, this.oauth_client_secret, this.oauth_scopes, this.oauth_auth_method);
+                                log.debug("monitor", `[${this.name}] Obtained oauth access-token. Expires at ${new Date(this.oauthAccessToken.expires_at * 1000)}`);
+                            }
+                            oauth2AuthHeader = {
+                                "Authorization": this.oauthAccessToken.token_type + " " + this.oauthAccessToken.access_token,
+                            };
+                        } catch (e) {
+                            throw new Error("The oauth config is invalid. " + e.message);
+                        }
+                    }
+
                    const httpsAgentOptions = {
                        maxCachedSessions: 0, // Use Custom agent to disable session reuse (https://github.com/nodejs/node/issues/3940)
                        rejectUnauthorized: !this.getIgnoreTls(),
@@ -295,12 +434,13 @@ class Monitor extends BeanModel {
                    const options = {
                        url: this.url,
                        method: (this.method || "get").toLowerCase(),
-                        timeout: this.interval * 1000 * 0.8,
+                        timeout: this.timeout * 1000,
                        headers: {
                            "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
                            "User-Agent": "Uptime-Kuma/" + version,
                            ...(contentType ? { "Content-Type": contentType } : {}),
                            ...(basicAuthHeader),
+                            ...(oauth2AuthHeader),
                            ...(this.headers ? JSON.parse(this.headers) : {})
                        },
                        maxRedirects: this.maxredirects,
@@ -331,6 +471,18 @@ class Monitor extends BeanModel {
                        options.httpsAgent = new https.Agent(httpsAgentOptions);
                    }

+                    if (this.auth_method === "mtls") {
+                        if (this.tlsCert !== null && this.tlsCert !== "") {
+                            options.httpsAgent.options.cert = Buffer.from(this.tlsCert);
+                        }
+                        if (this.tlsCa !== null && this.tlsCa !== "") {
+                            options.httpsAgent.options.ca = Buffer.from(this.tlsCa);
+                        }
+                        if (this.tlsKey !== null && this.tlsKey !== "") {
+                            options.httpsAgent.options.key = Buffer.from(this.tlsKey);
+                        }
+                    }
+
                    log.debug("monitor", `[${this.name}] Axios Options: ${JSON.stringify(options)}`);
                    log.debug("monitor", `[${this.name}] Axios Request`);

@@ -349,8 +501,8 @@ class Monitor extends BeanModel {
                            tlsInfo = await this.updateTlsInfo(tlsInfoObject);

                            if (!this.getIgnoreTls() && this.isEnabledExpiryNotification()) {
-                                log.debug("monitor", `[${this.name}] call sendCertNotification`);
-                                await this.sendCertNotification(tlsInfoObject);
+                                log.debug("monitor", `[${this.name}] call checkCertExpiryNotifications`);
+                                await this.checkCertExpiryNotifications(tlsInfoObject);
                            }

                        } catch (e) {
@@ -371,7 +523,7 @@ class Monitor extends BeanModel {

                    if (this.type === "http") {
                        bean.status = UP;
-                    } else {
+                    } else if (this.type === "keyword") {

                        let data = res.data;

@@ -380,17 +532,37 @@ class Monitor extends BeanModel {
                            data = JSON.stringify(data);
                        }

-                        if (data.includes(this.keyword)) {
-                            bean.msg += ", keyword is found";
+                        let keywordFound = data.includes(this.keyword);
+                        if (keywordFound === !this.isInvertKeyword()) {
+                            bean.msg += ", keyword " + (keywordFound ? "is" : "not") + " found";
                            bean.status = UP;
                        } else {
-                            data = data.replace(/<[^>]*>?|[\n\r]|\s+/gm, " ");
+                            data = data.replace(/<[^>]*>?|[\n\r]|\s+/gm, " ").trim();
                            if (data.length > 50) {
                                data = data.substring(0, 47) + "...";
                            }
-                            throw new Error(bean.msg + ", but keyword is not in [" + data + "]");
+                            throw new Error(bean.msg + ", but keyword is " +
+                                (keywordFound ? "present" : "not") + " in [" + data + "]");
                        }

+                    } else if (this.type === "json-query") {
+                        let data = res.data;
+
+                        // convert data to object
+                        if (typeof data === "string") {
+                            data = JSON.parse(data);
+                        }
+
+                        let expression = jsonata(this.jsonPath);
+
+                        let result = await expression.evaluate(data);
+
+                        if (result.toString() === this.expectedValue) {
+                            bean.msg += ", expected value is found";
+                            bean.status = UP;
+                        } else {
+                            throw new Error(bean.msg + ", but value is not equal to expected value, value was: [" + result + "]");
+                        }
                    }

                } else if (this.type === "port") {
@@ -465,7 +637,7 @@ class Monitor extends BeanModel {
                            // No need to insert successful heartbeat for push type, so end here
                            retries = 0;
                            log.debug("monitor", `[${this.name}] timeout = ${timeout}`);
-                            this.heartbeatInterval = setTimeout(beat, timeout);
+                            this.heartbeatInterval = setTimeout(safeBeat, timeout);
                            return;
                        }
                    } else {
@@ -482,7 +654,7 @@ class Monitor extends BeanModel {
                    }

                    let res = await axios.get(steamApiUrl, {
-                        timeout: this.interval * 1000 * 0.8,
+                        timeout: this.timeout * 1000,
                        headers: {
                            "Accept": "*/*",
                            "User-Agent": "Uptime-Kuma/" + version,
@@ -520,7 +692,7 @@ class Monitor extends BeanModel {
                            type: this.game,
                            host: this.hostname,
                            port: this.port,
-                            givenPortOnly: true,
+                            givenPortOnly: this.getGameDigGivenPortOnly(),
                        });

                        bean.msg = state.name;
@@ -554,13 +726,22 @@ class Monitor extends BeanModel {
                        options.socketPath = dockerHost._dockerDaemon;
                    } else if (dockerHost._dockerType === "tcp") {
                        options.baseURL = DockerHost.patchDockerURL(dockerHost._dockerDaemon);
+                        options.httpsAgent = CacheableDnsHttpAgent.getHttpsAgent(
+                            DockerHost.getHttpsAgentOptions(dockerHost._dockerType, options.baseURL)
+                        );
                    }

                    log.debug("monitor", `[${this.name}] Axios Request`);
                    let res = await axios.request(options);
+
                    if (res.data.State.Running) {
-                        bean.status = UP;
-                        bean.msg = res.data.State.Status;
+                        if (res.data.State.Health && res.data.State.Health.Status !== "healthy") {
+                            bean.status = PENDING;
+                            bean.msg = res.data.State.Health.Status;
+                        } else {
+                            bean.status = UP;
+                            bean.msg = res.data.State.Health ? res.data.State.Health.Status : res.data.State.Status;
+                        }
                    } else {
                        throw Error("Container State is " + res.data.State.Status);
                    }
@@ -589,7 +770,6 @@ class Monitor extends BeanModel {
                        grpcEnableTls: this.grpcEnableTls,
                        grpcMethod: this.grpcMethod,
                        grpcBody: this.grpcBody,
-                        keyword: this.keyword
                    };
                    const response = await grpcQuery(options);
                    bean.ping = dayjs().valueOf() - startTime;
@@ -602,13 +782,14 @@ class Monitor extends BeanModel {
                        bean.status = DOWN;
                        bean.msg = `Error in send gRPC ${response.code} ${response.errorMessage}`;
                    } else {
-                        if (response.data.toString().includes(this.keyword)) {
+                        let keywordFound = response.data.toString().includes(this.keyword);
+                        if (keywordFound === !this.isInvertKeyword()) {
                            bean.status = UP;
-                            bean.msg = `${responseData}, keyword [${this.keyword}] is found`;
+                            bean.msg = `${responseData}, keyword [${this.keyword}] ${keywordFound ? "is" : "not"} found`;
                        } else {
-                            log.debug("monitor:", `GRPC response [${response.data}] + ", but keyword [${this.keyword}] is not in [" + ${response.data} + "]"`);
+                            log.debug("monitor:", `GRPC response [${response.data}] + ", but keyword [${this.keyword}] is ${keywordFound ? "present" : "not"} in [" + ${response.data} + "]"`);
                            bean.status = DOWN;
-                            bean.msg = `, but keyword [${this.keyword}] is not in [" + ${responseData} + "]`;
+                            bean.msg = `, but keyword [${this.keyword}] is ${keywordFound ? "present" : "not"} in [" + ${responseData} + "]`;
                        }
                    }
                } else if (this.type === "postgres") {
@@ -622,9 +803,7 @@ class Monitor extends BeanModel {
                } else if (this.type === "mysql") {
                    let startTime = dayjs().valueOf();

-                    await mysqlQuery(this.databaseConnectionString, this.databaseQuery);
-
-                    bean.msg = "";
+                    bean.msg = await mysqlQuery(this.databaseConnectionString, this.databaseQuery);
                    bean.status = UP;
                    bean.ping = dayjs().valueOf() - startTime;
                } else if (this.type === "mongodb") {
@@ -649,28 +828,19 @@ class Monitor extends BeanModel {
                        port = this.port;
                    }

-                    try {
-                        const resp = await radius(
-                            this.hostname,
-                            this.radiusUsername,
-                            this.radiusPassword,
-                            this.radiusCalledStationId,
-                            this.radiusCallingStationId,
-                            this.radiusSecret,
-                            port
-                        );
-                        if (resp.code) {
-                            bean.msg = resp.code;
-                        }
-                        bean.status = UP;
-                    } catch (error) {
-                        bean.status = DOWN;
-                        if (error.response?.code) {
-                            bean.msg = error.response.code;
-                        } else {
-                            bean.msg = error.message;
-                        }
-                    }
+                    const resp = await radius(
+                        this.hostname,
+                        this.radiusUsername,
+                        this.radiusPassword,
+                        this.radiusCalledStationId,
+                        this.radiusCallingStationId,
+                        this.radiusSecret,
+                        port,
+                        this.interval * 1000 * 0.4,
+                    );
+
+                    bean.msg = resp.code;
+                    bean.status = UP;
                    bean.ping = dayjs().valueOf() - startTime;
                } else if (this.type === "redis") {
                    let startTime = dayjs().valueOf();
@@ -682,11 +852,29 @@ class Monitor extends BeanModel {
                } else if (this.type in UptimeKumaServer.monitorTypeList) {
                    let startTime = dayjs().valueOf();
                    const monitorType = UptimeKumaServer.monitorTypeList[this.type];
-                    await monitorType.check(this, bean);
+                    await monitorType.check(this, bean, UptimeKumaServer.getInstance());
                    if (!bean.ping) {
                        bean.ping = dayjs().valueOf() - startTime;
                    }

+                } else if (this.type === "kafka-producer") {
+                    let startTime = dayjs().valueOf();
+
+                    bean.msg = await kafkaProducerAsync(
+                        JSON.parse(this.kafkaProducerBrokers),
+                        this.kafkaProducerTopic,
+                        this.kafkaProducerMessage,
+                        {
+                            allowAutoTopicCreation: this.kafkaProducerAllowAutoTopicCreation,
+                            ssl: this.kafkaProducerSsl,
+                            clientId: `Uptime-Kuma/${version}`,
+                            interval: this.interval,
+                        },
+                        JSON.parse(this.kafkaProducerSaslOptions),
+                    );
+                    bean.status = UP;
+                    bean.ping = dayjs().valueOf() - startTime;
+
                } else {
                    throw new Error("Unknown Monitor Type");
                }
@@ -836,7 +1024,6 @@ class Monitor extends BeanModel {
                    domain: this.authDomain,
                    workstation: this.authWorkstation ? this.authWorkstation : undefined
                });
-
            } else {
                res = await axios.request(options);
            }
@@ -1165,12 +1352,18 @@ class Monitor extends BeanModel {

            for (let notification of notificationList) {
                try {
-                    // Prevent if the msg is undefined, notifications such as Discord cannot send out.
                    const heartbeatJSON = bean.toJSON();
+
+                    // Prevent if the msg is undefined, notifications such as Discord cannot send out.
                    if (!heartbeatJSON["msg"]) {
                        heartbeatJSON["msg"] = "N/A";
                    }

+                    // Also provide the time in server timezone
+                    heartbeatJSON["timezone"] = await UptimeKumaServer.getInstance().getTimezone();
+                    heartbeatJSON["timezoneOffset"] = UptimeKumaServer.getInstance().getTimezoneOffset();
+                    heartbeatJSON["localDateTime"] = dayjs.utc(heartbeatJSON["time"]).tz(heartbeatJSON["timezone"]).format(SQL_DATETIME_FORMAT);
+
                    await Notification.send(JSON.parse(notification.config), msg, await monitor.toJSON(false), heartbeatJSON);
                } catch (e) {
                    log.error("monitor", "Cannot send notification to " + notification.name);
@@ -1193,13 +1386,19 @@ class Monitor extends BeanModel {
    }

    /**
-     * Send notification about a certificate
+     * checks certificate chain for expiring certificates
     * @param {Object} tlsInfoObject Information about certificate
     */
-    async sendCertNotification(tlsInfoObject) {
+    async checkCertExpiryNotifications(tlsInfoObject) {
        if (tlsInfoObject && tlsInfoObject.certInfo && tlsInfoObject.certInfo.daysRemaining) {
            const notificationList = await Monitor.getNotificationList(this);

+            if (! notificationList.length > 0) {
+                // fail fast. If no notification is set, all the following checks can be skipped.
+                log.debug("monitor", "No notification, no need to send cert notification");
+                return;
+            }
+
            let notifyDays = await setting("tlsExpiryNotifyDays");
            if (notifyDays == null || !Array.isArray(notifyDays)) {
                // Reset Default
@@ -1207,10 +1406,19 @@ class Monitor extends BeanModel {
                notifyDays = [ 7, 14, 21 ];
            }

-            if (notifyDays != null && Array.isArray(notifyDays)) {
-                for (const day of notifyDays) {
-                    log.debug("monitor", "call sendCertNotificationByTargetDays", day);
-                    await this.sendCertNotificationByTargetDays(tlsInfoObject.certInfo.daysRemaining, day, notificationList);
+            if (Array.isArray(notifyDays)) {
+                for (const targetDays of notifyDays) {
+                    let certInfo = tlsInfoObject.certInfo;
+                    while (certInfo) {
+                        let subjectCN = certInfo.subject["CN"];
+                        if (certInfo.daysRemaining > targetDays) {
+                            log.debug("monitor", `No need to send cert notification for ${certInfo.certType} certificate "${subjectCN}" (${certInfo.daysRemaining} days valid) on ${targetDays} deadline.`);
+                        } else {
+                            log.debug("monitor", `call sendCertNotificationByTargetDays for ${targetDays} deadline on certificate ${subjectCN}.`);
+                            await this.sendCertNotificationByTargetDays(subjectCN, certInfo.certType, certInfo.daysRemaining, targetDays, notificationList);
+                        }
+                        certInfo = certInfo.issuerCertificate;
+                    }
                }
            }
        }
@@ -1219,55 +1427,47 @@ class Monitor extends BeanModel {
    /**
     * Send a certificate notification when certificate expires in less
     * than target days
-     * @param {number} daysRemaining Number of days remaining on certifcate
+     * @param {string} certCN  Common Name attribute from the certificate subject
+     * @param {string} certType  certificate type
+     * @param {number} daysRemaining Number of days remaining on certificate
     * @param {number} targetDays Number of days to alert after
     * @param {LooseObject<any>[]} notificationList List of notification providers
     * @returns {Promise<void>}
     */
-    async sendCertNotificationByTargetDays(daysRemaining, targetDays, notificationList) {
+    async sendCertNotificationByTargetDays(certCN, certType, daysRemaining, targetDays, notificationList) {

-        if (daysRemaining > targetDays) {
-            log.debug("monitor", `No need to send cert notification. ${daysRemaining} > ${targetDays}`);
+        let row = await R.getRow("SELECT * FROM notification_sent_history WHERE type = ? AND monitor_id = ? AND days <= ?", [
+            "certificate",
+            this.id,
+            targetDays,
+        ]);
+
+        // Sent already, no need to send again
+        if (row) {
+            log.debug("monitor", "Sent already, no need to send again");
            return;
        }

-        if (notificationList.length > 0) {
+        let sent = false;
+        log.debug("monitor", "Send certificate notification");

-            let row = await R.getRow("SELECT * FROM notification_sent_history WHERE type = ? AND monitor_id = ? AND days = ?", [
+        for (let notification of notificationList) {
+            try {
+                log.debug("monitor", "Sending to " + notification.name);
+                await Notification.send(JSON.parse(notification.config), `[${this.name}][${this.url}] ${certType} certificate ${certCN} will be expired in ${daysRemaining} days`);
+                sent = true;
+            } catch (e) {
+                log.error("monitor", "Cannot send cert notification to " + notification.name);
+                log.error("monitor", e);
+            }
+        }
+
+        if (sent) {
+            await R.exec("INSERT INTO notification_sent_history (type, monitor_id, days) VALUES(?, ?, ?)", [
                "certificate",
                this.id,
                targetDays,
            ]);
-
-            // Sent already, no need to send again
-            if (row) {
-                log.debug("monitor", "Sent already, no need to send again");
-                return;
-            }
-
-            let sent = false;
-            log.debug("monitor", "Send certificate notification");
-
-            for (let notification of notificationList) {
-                try {
-                    log.debug("monitor", "Sending to " + notification.name);
-                    await Notification.send(JSON.parse(notification.config), `[${this.name}][${this.url}] Certificate will be expired in ${daysRemaining} days`);
-                    sent = true;
-                } catch (e) {
-                    log.error("monitor", "Cannot send cert notification to " + notification.name);
-                    log.error("monitor", e);
-                }
-            }
-
-            if (sent) {
-                await R.exec("INSERT INTO notification_sent_history (type, monitor_id, days) VALUES(?, ?, ?)", [
-                    "certificate",
-                    this.id,
-                    targetDays,
-                ]);
-            }
-        } else {
-            log.debug("monitor", "No notification, no need to send cert notification");
        }
    }

@@ -1291,18 +1491,24 @@ class Monitor extends BeanModel {
     * @returns {Promise<boolean>}
     */
    static async isUnderMaintenance(monitorID) {
-        let activeCondition = Maintenance.getActiveMaintenanceSQLCondition();
-        const maintenance = await R.getRow(`
-            SELECT COUNT(*) AS count
-            FROM monitor_maintenance mm
-            JOIN maintenance
-                ON mm.maintenance_id = maintenance.id
-                AND mm.monitor_id = ?
-            LEFT JOIN maintenance_timeslot
-                ON maintenance_timeslot.maintenance_id = maintenance.id
-            WHERE ${activeCondition}
-            LIMIT 1`, [ monitorID ]);
-        return maintenance.count !== 0;
+        const maintenanceIDList = await R.getCol(`
+            SELECT maintenance_id FROM monitor_maintenance
+            WHERE monitor_id = ?
+        `, [ monitorID ]);
+
+        for (const maintenanceID of maintenanceIDList) {
+            const maintenance = await UptimeKumaServer.getInstance().getMaintenance(maintenanceID);
+            if (maintenance && await maintenance.isUnderMaintenance()) {
+                return true;
+            }
+        }
+
+        const parent = await Monitor.getParent(monitorID);
+        if (parent != null) {
+            return await Monitor.isUnderMaintenance(parent.id);
+        }
+
+        return false;
    }

    /** Make sure monitor interval is between bounds */
@@ -1314,6 +1520,105 @@ class Monitor extends BeanModel {
            throw new Error(`Interval cannot be less than ${MIN_INTERVAL_SECOND} seconds`);
        }
    }
+
+    /**
+     * Gets Parent of the monitor
+     * @param {number} monitorID ID of monitor to get
+     * @returns {Promise<LooseObject<any>>}
+     */
+    static async getParent(monitorID) {
+        return await R.getRow(`
+            SELECT parent.* FROM monitor parent
+    		LEFT JOIN monitor child
+    			ON child.parent = parent.id
+            WHERE child.id = ?
+        `, [
+            monitorID,
+        ]);
+    }
+
+    /**
+     * Gets all Children of the monitor
+     * @param {number} monitorID ID of monitor to get
+     * @returns {Promise<LooseObject<any>>}
+     */
+    static async getChildren(monitorID) {
+        return await R.getAll(`
+            SELECT * FROM monitor
+            WHERE parent = ?
+        `, [
+            monitorID,
+        ]);
+    }
+
+    /**
+     * Gets Full Path-Name (Groups and Name)
+     * @returns {Promise<String>}
+     */
+    async getPathName() {
+        let path = this.name;
+
+        if (this.parent === null) {
+            return path;
+        }
+
+        let parent = await Monitor.getParent(this.id);
+        while (parent !== null) {
+            path = `${parent.name} / ${path}`;
+            parent = await Monitor.getParent(parent.id);
+        }
+
+        return path;
+    }
+
+    /**
+     * Gets recursive all child ids
+	 * @param {number} monitorID ID of the monitor to get
+     * @returns {Promise<Array>}
+     */
+    static async getAllChildrenIDs(monitorID) {
+        const childs = await Monitor.getChildren(monitorID);
+
+        if (childs === null) {
+            return [];
+        }
+
+        let childrenIDs = [];
+
+        for (const child of childs) {
+            childrenIDs.push(child.id);
+            childrenIDs = childrenIDs.concat(await Monitor.getAllChildrenIDs(child.id));
+        }
+
+        return childrenIDs;
+    }
+
+    /**
+     * Unlinks all children of the the group monitor
+     * @param {number} groupID ID of group to remove children of
+     * @returns {Promise<void>}
+     */
+    static async unlinkAllChildren(groupID) {
+        return await R.exec("UPDATE `monitor` SET parent = ? WHERE parent = ? ", [
+            null, groupID
+        ]);
+    }
+
+    /**
+	 * Checks recursive if parent (ancestors) are active
+	 * @param {number} monitorID ID of the monitor to get
+	 * @returns {Promise<Boolean>}
+	 */
+    static async isParentActive(monitorID) {
+        const parent = await Monitor.getParent(monitorID);
+
+        if (parent === null) {
+            return true;
+        }
+
+        const parentActive = await Monitor.isParentActive(parent.id);
+        return parent.active && parentActive;
+    }
 }

 module.exports = Monitor;
--- a/server/model/status_page.js
+++ b/server/model/status_page.js
@@ -3,7 +3,6 @@ const { R } = require("redbean-node");
 const cheerio = require("cheerio");
 const { UptimeKumaServer } = require("../uptime-kuma-server");
 const jsesc = require("jsesc");
-const Maintenance = require("./maintenance");
 const googleAnalytics = require("../google-analytics");

 class StatusPage extends BeanModel {
@@ -91,6 +90,8 @@ class StatusPage extends BeanModel {
     * @param {StatusPage} statusPage
     */
    static async getStatusPageData(statusPage) {
+        const config = await statusPage.toPublicJSON();
+
        // Incident
        let incident = await R.findOne("incident", " pin = 1 AND active = 1 AND status_page_id = ? ", [
            statusPage.id,
@@ -111,13 +112,13 @@ class StatusPage extends BeanModel {
        ]);

        for (let groupBean of list) {
-            let monitorGroup = await groupBean.toPublicJSON(showTags);
+            let monitorGroup = await groupBean.toPublicJSON(showTags, config?.showCertificateExpiry);
            publicGroupList.push(monitorGroup);
        }

        // Response
        return {
-            config: await statusPage.toPublicJSON(),
+            config,
            incident,
            publicGroupList,
            maintenanceList,
@@ -235,6 +236,7 @@ class StatusPage extends BeanModel {
            footerText: this.footer_text,
            showPoweredBy: !!this.show_powered_by,
            googleAnalyticsId: this.google_analytics_tag_id,
+            showCertificateExpiry: !!this.show_certificate_expiry,
        };
    }

@@ -256,6 +258,7 @@ class StatusPage extends BeanModel {
            footerText: this.footer_text,
            showPoweredBy: !!this.show_powered_by,
            googleAnalyticsId: this.google_analytics_tag_id,
+            showCertificateExpiry: !!this.show_certificate_expiry,
        };
    }

@@ -290,21 +293,17 @@ class StatusPage extends BeanModel {
        try {
            const publicMaintenanceList = [];

-            let activeCondition = Maintenance.getActiveMaintenanceSQLCondition();
-            let maintenanceBeanList = R.convertToBeans("maintenance", await R.getAll(`
-                SELECT DISTINCT maintenance.*
-                FROM maintenance
-                JOIN maintenance_status_page
-                    ON maintenance_status_page.maintenance_id = maintenance.id
-                    AND maintenance_status_page.status_page_id = ?
-                LEFT JOIN maintenance_timeslot
-                    ON maintenance_timeslot.maintenance_id = maintenance.id
-                WHERE ${activeCondition}
-                ORDER BY maintenance.end_date
-            `, [ statusPageId ]));
+            let maintenanceIDList = await R.getCol(`
+                SELECT DISTINCT maintenance_id
+                FROM maintenance_status_page
+                WHERE status_page_id = ?
+            `, [ statusPageId ]);

-            for (const bean of maintenanceBeanList) {
-                publicMaintenanceList.push(await bean.toPublicJSON());
+            for (const maintenanceID of maintenanceIDList) {
+                let maintenance = UptimeKumaServer.getInstance().getMaintenance(maintenanceID);
+                if (maintenance && await maintenance.isUnderMaintenance()) {
+                    publicMaintenanceList.push(await maintenance.toPublicJSON());
+                }
            }

            return publicMaintenanceList;
--- a/server/monitor-types/monitor-type.js
+++ b/server/monitor-types/monitor-type.js
@@ -6,9 +6,10 @@ class MonitorType {
     *
     * @param {Monitor} monitor
     * @param {Heartbeat} heartbeat
+     * @param {UptimeKumaServer} server
     * @returns {Promise<void>}
     */
-    async check(monitor, heartbeat) {
+    async check(monitor, heartbeat, server) {
        throw new Error("You need to override check()");
    }

--- a/server/monitor-types/real-browser-monitor-type.js
+++ b/server/monitor-types/real-browser-monitor-type.js
@@ -0,0 +1,212 @@
+const { MonitorType } = require("./monitor-type");
+const { chromium } = require("playwright-core");
+const { UP, log } = require("../../src/util");
+const { Settings } = require("../settings");
+const commandExistsSync = require("command-exists").sync;
+const childProcess = require("child_process");
+const path = require("path");
+const Database = require("../database");
+const jwt = require("jsonwebtoken");
+const config = require("../config");
+
+let browser = null;
+
+let allowedList = [];
+let lastAutoDetectChromeExecutable = null;
+
+if (process.platform === "win32") {
+    allowedList.push(process.env.LOCALAPPDATA + "\\Google\\Chrome\\Application\\chrome.exe");
+    allowedList.push(process.env.PROGRAMFILES + "\\Google\\Chrome\\Application\\chrome.exe");
+    allowedList.push(process.env["ProgramFiles(x86)"] + "\\Google\\Chrome\\Application\\chrome.exe");
+
+    // Allow Chromium too
+    allowedList.push(process.env.LOCALAPPDATA + "\\Chromium\\Application\\chrome.exe");
+    allowedList.push(process.env.PROGRAMFILES + "\\Chromium\\Application\\chrome.exe");
+    allowedList.push(process.env["ProgramFiles(x86)"] + "\\Chromium\\Application\\chrome.exe");
+
+    // For Loop A to Z
+    for (let i = 65; i <= 90; i++) {
+        let drive = String.fromCharCode(i);
+        allowedList.push(drive + ":\\Program Files\\Google\\Chrome\\Application\\chrome.exe");
+        allowedList.push(drive + ":\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe");
+    }
+
+} else if (process.platform === "linux") {
+    allowedList = [
+        "chromium",
+        "chromium-browser",
+        "google-chrome",
+
+        "/usr/bin/chromium",
+        "/usr/bin/chromium-browser",
+        "/usr/bin/google-chrome",
+    ];
+} else if (process.platform === "darwin") {
+    // TODO: Generated by GitHub Copilot, but not sure if it's correct
+    allowedList = [
+        "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome",
+        "/Applications/Chromium.app/Contents/MacOS/Chromium",
+    ];
+}
+
+log.debug("chrome", allowedList);
+
+async function isAllowedChromeExecutable(executablePath) {
+    console.log(config.args);
+    if (config.args["allow-all-chrome-exec"] || process.env.UPTIME_KUMA_ALLOW_ALL_CHROME_EXEC === "1") {
+        return true;
+    }
+
+    // Check if the executablePath is in the list of allowed executables
+    return allowedList.includes(executablePath);
+}
+
+async function getBrowser() {
+    if (!browser) {
+        let executablePath = await Settings.get("chromeExecutable");
+
+        executablePath = await prepareChromeExecutable(executablePath);
+
+        browser = await chromium.launch({
+            //headless: false,
+            executablePath,
+        });
+    }
+    return browser;
+}
+
+async function prepareChromeExecutable(executablePath) {
+    // Special code for using the playwright_chromium
+    if (typeof executablePath === "string" && executablePath.toLocaleLowerCase() === "#playwright_chromium") {
+        // Set to undefined = use playwright_chromium
+        executablePath = undefined;
+    } else if (!executablePath) {
+        if (process.env.UPTIME_KUMA_IS_CONTAINER) {
+            executablePath = "/usr/bin/chromium";
+
+            // Install chromium in container via apt install
+            if ( !commandExistsSync(executablePath)) {
+                await new Promise((resolve, reject) => {
+                    log.info("Chromium", "Installing Chromium...");
+                    let child = childProcess.exec("apt update && apt --yes --no-install-recommends install chromium fonts-indic fonts-noto fonts-noto-cjk");
+
+                    // On exit
+                    child.on("exit", (code) => {
+                        log.info("Chromium", "apt install chromium exited with code " + code);
+
+                        if (code === 0) {
+                            log.info("Chromium", "Installed Chromium");
+                            let version = childProcess.execSync(executablePath + " --version").toString("utf8");
+                            log.info("Chromium", "Chromium version: " + version);
+                            resolve();
+                        } else if (code === 100) {
+                            reject(new Error("Installing Chromium, please wait..."));
+                        } else {
+                            reject(new Error("apt install chromium failed with code " + code));
+                        }
+                    });
+                });
+            }
+
+        } else {
+            executablePath = findChrome(allowedList);
+        }
+    } else {
+        // User specified a path
+        // Check if the executablePath is in the list of allowed
+        if (!await isAllowedChromeExecutable(executablePath)) {
+            throw new Error("This Chromium executable path is not allowed by default. If you are sure this is safe, please add an environment variable UPTIME_KUMA_ALLOW_ALL_CHROME_EXEC=1 to allow it.");
+        }
+    }
+    return executablePath;
+}
+
+function findChrome(executables) {
+    // Use the last working executable, so we don't have to search for it again
+    if (lastAutoDetectChromeExecutable) {
+        if (commandExistsSync(lastAutoDetectChromeExecutable)) {
+            return lastAutoDetectChromeExecutable;
+        }
+    }
+
+    for (let executable of executables) {
+        if (commandExistsSync(executable)) {
+            lastAutoDetectChromeExecutable = executable;
+            return executable;
+        }
+    }
+    throw new Error("Chromium not found, please specify Chromium executable path in the settings page.");
+}
+
+async function resetChrome() {
+    if (browser) {
+        await browser.close();
+        browser = null;
+    }
+}
+
+/**
+ * Test if the chrome executable is valid and return the version
+ * @param executablePath
+ * @returns {Promise<string>}
+ */
+async function testChrome(executablePath) {
+    try {
+        executablePath = await prepareChromeExecutable(executablePath);
+
+        log.info("Chromium", "Testing Chromium executable: " + executablePath);
+
+        const browser = await chromium.launch({
+            executablePath,
+        });
+        const version = browser.version();
+        await browser.close();
+        return version;
+    } catch (e) {
+        throw new Error(e.message);
+    }
+}
+
+/**
+ * TODO: connect remote browser? https://playwright.dev/docs/api/class-browsertype#browser-type-connect
+ *
+ */
+class RealBrowserMonitorType extends MonitorType {
+
+    name = "real-browser";
+
+    async check(monitor, heartbeat, server) {
+        const browser = await getBrowser();
+        const context = await browser.newContext();
+        const page = await context.newPage();
+
+        const res = await page.goto(monitor.url, {
+            waitUntil: "networkidle",
+            timeout: monitor.interval * 1000 * 0.8,
+        });
+
+        let filename = jwt.sign(monitor.id, server.jwtSecret) + ".png";
+
+        await page.screenshot({
+            path: path.join(Database.screenshotDir, filename),
+        });
+
+        await context.close();
+
+        if (res.status() >= 200 && res.status() < 400) {
+            heartbeat.status = UP;
+            heartbeat.msg = res.status();
+
+            const timing = res.request().timing();
+            heartbeat.ping = timing.responseEnd;
+        } else {
+            throw new Error(res.status() + "");
+        }
+    }
+}
+
+module.exports = {
+    RealBrowserMonitorType,
+    testChrome,
+    resetChrome,
+};
--- a/server/monitor-types/tailscale-ping.js
+++ b/server/monitor-types/tailscale-ping.js
@@ -0,0 +1,95 @@
+const { MonitorType } = require("./monitor-type");
+const { UP, log } = require("../../src/util");
+const exec = require("child_process").exec;
+
+/**
+ * A TailscalePing class extends the MonitorType.
+ * It runs Tailscale ping to monitor the status of a specific node.
+ */
+class TailscalePing extends MonitorType {
+
+    name = "tailscale-ping";
+
+    /**
+     * Checks the ping status of the URL associated with the monitor.
+     * It then parses the Tailscale ping command output to update the heatrbeat.
+     *
+     * @param {Object} monitor - The monitor object associated with the check.
+     * @param {Object} heartbeat - The heartbeat object to update.
+     * @throws Will throw an error if checking Tailscale ping encounters any error
+     */
+    async check(monitor, heartbeat) {
+        try {
+            let tailscaleOutput = await this.runTailscalePing(monitor.hostname, monitor.interval);
+            this.parseTailscaleOutput(tailscaleOutput, heartbeat);
+        } catch (err) {
+            log.debug("Tailscale", err);
+            // trigger log function somewhere to display a notification or alert to the user (but how?)
+            throw new Error(`Error checking Tailscale ping: ${err}`);
+        }
+    }
+
+    /**
+     * Runs the Tailscale ping command to the given URL.
+     *
+     * @param {string} hostname - The hostname to ping.
+     * @returns {Promise<string>} - A Promise that resolves to the output of the Tailscale ping command
+     * @throws Will throw an error if the command execution encounters any error.
+     */
+    async runTailscalePing(hostname, interval) {
+        let cmd = `tailscale ping ${hostname}`;
+
+        log.debug("Tailscale", cmd);
+
+        return new Promise((resolve, reject) => {
+            let timeout = interval * 1000 * 0.8;
+            exec(cmd, { timeout: timeout }, (error, stdout, stderr) => {
+                // we may need to handle more cases if tailscale reports an error that isn't necessarily an error (such as not-logged in or DERP health-related issues)
+                if (error) {
+                    reject(`Execution error: ${error.message}`);
+                    return;
+                }
+                if (stderr) {
+                    reject(`Error in output: ${stderr}`);
+                    return;
+                }
+
+                resolve(stdout);
+            });
+        });
+    }
+
+    /**
+     * Parses the output of the Tailscale ping command to update the heartbeat.
+     *
+     * @param {string} tailscaleOutput - The output of the Tailscale ping command.
+     * @param {Object} heartbeat - The heartbeat object to update.
+     * @throws Will throw an eror if the output contains any unexpected string.
+     */
+    parseTailscaleOutput(tailscaleOutput, heartbeat) {
+        let lines = tailscaleOutput.split("\n");
+
+        for (let line of lines) {
+            if (line.includes("pong from")) {
+                heartbeat.status = UP;
+                let time = line.split(" in ")[1].split(" ")[0];
+                heartbeat.ping = parseInt(time);
+                heartbeat.msg = line;
+                break;
+            } else if (line.includes("timed out")) {
+                throw new Error(`Ping timed out: "${line}"`);
+                // Immediately throws upon "timed out" message, the server is expected to re-call the check function
+            } else if (line.includes("no matching peer")) {
+                throw new Error(`Nonexistant or inaccessible due to ACLs: "${line}"`);
+            } else if (line.includes("is local Tailscale IP")) {
+                throw new Error(`Tailscale only works if used on other machines: "${line}"`);
+            } else if (line !== "") {
+                throw new Error(`Unexpected output: "${line}"`);
+            }
+        }
+    }
+}
+
+module.exports = {
+    TailscalePing,
+};
--- a/server/notification-providers/dingding.js
+++ b/server/notification-providers/dingding.js
@@ -15,7 +15,7 @@ class DingDing extends NotificationProvider {
                    msgtype: "markdown",
                    markdown: {
                        title: `[${this.statusToString(heartbeatJSON["status"])}] ${monitorJSON["name"]}`,
-                        text: `## [${this.statusToString(heartbeatJSON["status"])}] ${monitorJSON["name"]} \n > ${heartbeatJSON["msg"]}  \n > Time(UTC):${heartbeatJSON["time"]}`,
+                        text: `## [${this.statusToString(heartbeatJSON["status"])}] ${monitorJSON["name"]} \n> ${heartbeatJSON["msg"]}\n> Time (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`,
                    }
                };
                if (this.sendToDingDing(notification, params)) {
--- a/server/notification-providers/discord.js
+++ b/server/notification-providers/discord.js
@@ -59,8 +59,8 @@ class Discord extends NotificationProvider {
                                value: monitorJSON["type"] === "push" ? "Heartbeat" : address,
                            },
                            {
-                                name: "Time (UTC)",
-                                value: heartbeatJSON["time"],
+                                name: `Time (${heartbeatJSON["timezone"]})`,
+                                value: heartbeatJSON["localDateTime"],
                            },
                            {
                                name: "Error",
@@ -94,8 +94,8 @@ class Discord extends NotificationProvider {
                                value: monitorJSON["type"] === "push" ? "Heartbeat" : address,
                            },
                            {
-                                name: "Time (UTC)",
-                                value: heartbeatJSON["time"],
+                                name: `Time (${heartbeatJSON["timezone"]})`,
+                                value: heartbeatJSON["localDateTime"],
                            },
                            {
                                name: "Ping",
--- a/server/notification-providers/feishu.js
+++ b/server/notification-providers/feishu.js
@@ -35,8 +35,7 @@ class Feishu extends NotificationProvider {
                                            text:
                                                "[Down] " +
                                                heartbeatJSON["msg"] +
-                                                "\nTime (UTC): " +
-                                                heartbeatJSON["time"],
+                                                `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
                                        },
                                    ],
                                ],
@@ -62,8 +61,7 @@ class Feishu extends NotificationProvider {
                                            text:
                                                "[Up] " +
                                                heartbeatJSON["msg"] +
-                                                "\nTime (UTC): " +
-                                                heartbeatJSON["time"],
+                                                `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`,
                                        },
                                    ],
                                ],
--- a/server/notification-providers/flashduty.js
+++ b/server/notification-providers/flashduty.js
@@ -0,0 +1,98 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { UP, DOWN, getMonitorRelativeURL } = require("../../src/util");
+const { setting } = require("../util-server");
+const successMessage = "Sent Successfully.";
+
+class FlashDuty extends NotificationProvider {
+    name = "FlashDuty";
+
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        try {
+            if (heartbeatJSON == null) {
+                const title = "Uptime Kuma Alert";
+                const monitor = {
+                    type: "ping",
+                    url: msg,
+                    name: "https://flashcat.cloud"
+                };
+                return this.postNotification(notification, title, msg, monitor);
+            }
+
+            if (heartbeatJSON.status === UP) {
+                const title = "Uptime Kuma Monitor ✅ Up";
+
+                return this.postNotification(notification, title, heartbeatJSON.msg, monitorJSON, "Ok");
+            }
+
+            if (heartbeatJSON.status === DOWN) {
+                const title = "Uptime Kuma Monitor 🔴 Down";
+                return this.postNotification(notification, title, heartbeatJSON.msg, monitorJSON, notification.flashdutySeverity);
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+    /**
+     * Generate a monitor url from the monitors infomation
+     * @param {Object} monitorInfo Monitor details
+     * @returns {string|undefined}
+     */
+
+    genMonitorUrl(monitorInfo) {
+        if (monitorInfo.type === "port" && monitorInfo.port) {
+            return monitorInfo.hostname + ":" + monitorInfo.port;
+        }
+        if (monitorInfo.hostname != null) {
+            return monitorInfo.hostname;
+        }
+        return monitorInfo.url;
+    }
+
+    /**
+     * Send the message
+     * @param {BeanModel} notification Message title
+     * @param {string} title Message
+     * @param {string} body Message
+     * @param {Object} monitorInfo Monitor details
+     * @param {string} eventStatus Monitor status (Info, Warning, Critical, Ok)
+     * @returns {string}
+     */
+    async postNotification(notification, title, body, monitorInfo, eventStatus) {
+        const options = {
+            method: "POST",
+            url: "https://api.flashcat.cloud/event/push/alert/standard?integration_key=" + notification.flashdutyIntegrationKey,
+            headers: { "Content-Type": "application/json" },
+            data: {
+                description: `[${title}] [${monitorInfo.name}] ${body}`,
+                title,
+                event_status: eventStatus || "Info",
+                alert_key: String(monitorInfo.id) || Math.random().toString(36).substring(7),
+                labels: monitorInfo?.tags?.reduce((acc, item) => ({ ...acc,
+                    [item.name]: item.value
+                }), { resource: this.genMonitorUrl(monitorInfo) }),
+            }
+        };
+
+        const baseURL = await setting("primaryBaseURL");
+        if (baseURL && monitorInfo) {
+            options.client = "Uptime Kuma";
+            options.client_url = baseURL + getMonitorRelativeURL(monitorInfo.id);
+        }
+
+        let result = await axios.request(options);
+        if (result.status == null) {
+            throw new Error("FlashDuty notification failed with invalid response!");
+        }
+        if (result.status < 200 || result.status >= 300) {
+            throw new Error("FlashDuty notification failed with status code " + result.status);
+        }
+        if (result.statusText != null) {
+            return "FlashDuty notification succeed: " + result.statusText;
+        }
+
+        return successMessage;
+    }
+}
+
+module.exports = FlashDuty;
--- a/server/notification-providers/home-assistant.js
+++ b/server/notification-providers/home-assistant.js
@@ -11,7 +11,7 @@ class HomeAssistant extends NotificationProvider {

        try {
            await axios.post(
-                `${notification.homeAssistantUrl}/api/services/notify/${notificationService}`,
+                `${notification.homeAssistantUrl.trim().replace(/\/*$/, "")}/api/services/notify/${notificationService}`,
                {
                    title: "Uptime Kuma",
                    message,
--- a/server/notification-providers/line.js
+++ b/server/notification-providers/line.js
@@ -33,7 +33,10 @@ class Line extends NotificationProvider {
                    "messages": [
                        {
                            "type": "text",
-                            "text": "UptimeKuma Alert: [🔴 Down]\n" + "Name: " + monitorJSON["name"] + " \n" + heartbeatJSON["msg"] + "\nTime (UTC): " + heartbeatJSON["time"]
+                            "text": "UptimeKuma Alert: [🔴 Down]\n" +
+                                "Name: " + monitorJSON["name"] + " \n" +
+                                heartbeatJSON["msg"] +
+                                `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
                        }
                    ]
                };
@@ -44,7 +47,10 @@ class Line extends NotificationProvider {
                    "messages": [
                        {
                            "type": "text",
-                            "text": "UptimeKuma Alert: [✅ Up]\n" + "Name: " + monitorJSON["name"] + " \n" + heartbeatJSON["msg"] + "\nTime (UTC): " + heartbeatJSON["time"]
+                            "text": "UptimeKuma Alert: [✅ Up]\n" +
+                                "Name: " + monitorJSON["name"] + " \n" +
+                                heartbeatJSON["msg"] +
+                                `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
                        }
                    ]
                };
--- a/server/notification-providers/linenotify.js
+++ b/server/notification-providers/linenotify.js
@@ -24,12 +24,18 @@ class LineNotify extends NotificationProvider {
                await axios.post(lineAPIUrl, qs.stringify(testMessage), config);
            } else if (heartbeatJSON["status"] === DOWN) {
                let downMessage = {
-                    "message": "\n[🔴 Down]\n" + "Name: " + monitorJSON["name"] + " \n" + heartbeatJSON["msg"] + "\nTime (UTC): " + heartbeatJSON["time"]
+                    "message": "\n[🔴 Down]\n" +
+                        "Name: " + monitorJSON["name"] + " \n" +
+                        heartbeatJSON["msg"] + "\n" +
+                        `Time (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
                };
                await axios.post(lineAPIUrl, qs.stringify(downMessage), config);
            } else if (heartbeatJSON["status"] === UP) {
                let upMessage = {
-                    "message": "\n[✅ Up]\n" + "Name: " + monitorJSON["name"] + " \n" + heartbeatJSON["msg"] + "\nTime (UTC): " + heartbeatJSON["time"]
+                    "message": "\n[✅ Up]\n" +
+                        "Name: " + monitorJSON["name"] + " \n" +
+                        heartbeatJSON["msg"] + "\n" +
+                        `Time (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
                };
                await axios.post(lineAPIUrl, qs.stringify(upMessage), config);
            }
--- a/server/notification-providers/lunasea.js
+++ b/server/notification-providers/lunasea.js
@@ -28,7 +28,9 @@ class LunaSea extends NotificationProvider {
            if (heartbeatJSON["status"] === DOWN) {
                let downdata = {
                    "title": "UptimeKuma Alert: " + monitorJSON["name"],
-                    "body": "[🔴 Down] " + heartbeatJSON["msg"] + "\nTime (UTC): " + heartbeatJSON["time"],
+                    "body": "[🔴 Down] " +
+                        heartbeatJSON["msg"] +
+                        `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
                };
                await axios.post(lunaseaurl, downdata);
                return okMsg;
@@ -37,7 +39,9 @@ class LunaSea extends NotificationProvider {
            if (heartbeatJSON["status"] === UP) {
                let updata = {
                    "title": "UptimeKuma Alert: " + monitorJSON["name"],
-                    "body": "[✅ Up] " + heartbeatJSON["msg"] + "\nTime (UTC): " + heartbeatJSON["time"],
+                    "body": "[✅ Up] " +
+                        heartbeatJSON["msg"] +
+                        `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`
                };
                await axios.post(lunaseaurl, updata);
                return okMsg;
--- a/server/notification-providers/mattermost.js
+++ b/server/notification-providers/mattermost.js
@@ -10,7 +10,7 @@ class Mattermost extends NotificationProvider {
        let okMsg = "Sent Successfully.";
        try {
            const mattermostUserName = notification.mattermostusername || "Uptime Kuma";
-            // If heartbeatJSON is null, assume we're testing.
+            // If heartbeatJSON is null, assume non monitoring notification (Certificate warning) or testing.
            if (heartbeatJSON == null) {
                let mattermostTestData = {
                    username: mattermostUserName,
@@ -27,97 +27,79 @@ class Mattermost extends NotificationProvider {
            }

            const mattermostIconEmoji = notification.mattermosticonemo;
-            const mattermostIconUrl = notification.mattermosticonurl;
+            let mattermostIconEmojiOnline = "";
+            let mattermostIconEmojiOffline = "";

-            if (heartbeatJSON["status"] === DOWN) {
-                let mattermostdowndata = {
-                    username: mattermostUserName,
-                    text: "Uptime Kuma Alert",
-                    channel: mattermostChannel,
-                    icon_emoji: mattermostIconEmoji,
-                    icon_url: mattermostIconUrl,
-                    attachments: [
-                        {
-                            fallback:
-                                "Your " +
-                                monitorJSON["name"] +
-                                " service went down.",
-                            color: "#FF0000",
-                            title:
-                                "❌ " +
-                                monitorJSON["name"] +
-                                " service went down. ❌",
-                            title_link: monitorJSON["url"],
-                            fields: [
-                                {
-                                    short: true,
-                                    title: "Service Name",
-                                    value: monitorJSON["name"],
-                                },
-                                {
-                                    short: true,
-                                    title: "Time (UTC)",
-                                    value: heartbeatJSON["time"],
-                                },
-                                {
-                                    short: false,
-                                    title: "Error",
-                                    value: heartbeatJSON["msg"],
-                                },
-                            ],
-                        },
-                    ],
-                };
-                await axios.post(
-                    notification.mattermostWebhookUrl,
-                    mattermostdowndata
-                );
-                return okMsg;
-            } else if (heartbeatJSON["status"] === UP) {
-                let mattermostupdata = {
-                    username: mattermostUserName,
-                    text: "Uptime Kuma Alert",
-                    channel: mattermostChannel,
-                    icon_emoji: mattermostIconEmoji,
-                    icon_url: mattermostIconUrl,
-                    attachments: [
-                        {
-                            fallback:
-                                "Your " +
-                                monitorJSON["name"] +
-                                " service went up!",
-                            color: "#32CD32",
-                            title:
-                                "✅ " +
-                                monitorJSON["name"] +
-                                " service went up! ✅",
-                            title_link: monitorJSON["url"],
-                            fields: [
-                                {
-                                    short: true,
-                                    title: "Service Name",
-                                    value: monitorJSON["name"],
-                                },
-                                {
-                                    short: true,
-                                    title: "Time (UTC)",
-                                    value: heartbeatJSON["time"],
-                                },
-                                {
-                                    short: false,
-                                    title: "Ping",
-                                    value: heartbeatJSON["ping"] + "ms",
-                                },
-                            ],
-                        },
-                    ],
-                };
-                await axios.post(
-                    notification.mattermostWebhookUrl,
-                    mattermostupdata
-                );
-                return okMsg;
+            if (mattermostIconEmoji && typeof mattermostIconEmoji === "string") {
+                const emojiArray = mattermostIconEmoji.split(" ");
+                if (emojiArray.length >= 2) {
+                    mattermostIconEmojiOnline = emojiArray[0];
+                    mattermostIconEmojiOffline = emojiArray[1];
+                }
            }
+            const mattermostIconUrl = notification.mattermosticonurl;
+            let iconEmoji = mattermostIconEmoji;
+            let statusField = {
+                short: false,
+                title: "Error",
+                value: heartbeatJSON.msg,
+            };
+            let statusText = "unknown";
+            let color = "#000000";
+            if (heartbeatJSON.status === DOWN) {
+                iconEmoji = mattermostIconEmojiOffline || mattermostIconEmoji;
+                statusField = {
+                    short: false,
+                    title: "Error",
+                    value: heartbeatJSON.msg,
+                };
+                statusText = "down.";
+                color = "#FF0000";
+            } else if (heartbeatJSON.status === UP) {
+                iconEmoji = mattermostIconEmojiOnline || mattermostIconEmoji;
+                statusField = {
+                    short: false,
+                    title: "Ping",
+                    value: heartbeatJSON.ping + "ms",
+                };
+                statusText = "up!";
+                color = "#32CD32";
+            }
+
+            let mattermostdata = {
+                username: monitorJSON.name + " " + mattermostUserName,
+                channel: mattermostChannel,
+                icon_emoji: iconEmoji,
+                icon_url: mattermostIconUrl,
+                attachments: [
+                    {
+                        fallback:
+                            "Your " +
+                            monitorJSON.name +
+                            " service went " +
+                            statusText,
+                        color: color,
+                        title:
+                            monitorJSON.name +
+                            " service went " +
+                            statusText,
+                        title_link: monitorJSON.url,
+                        fields: [
+                            statusField,
+                            {
+                                short: true,
+                                title: `Time (${heartbeatJSON["timezone"]})`,
+                                value: heartbeatJSON.localDateTime,
+                            },
+                        ],
+                    },
+                ],
+            };
+            await axios.post(
+                notification.mattermostWebhookUrl,
+                mattermostdata
+            );
+            return okMsg;
        } catch (error) {
            this.throwGeneralAxiosError(error);
        }
--- a/server/notification-providers/nostr.js
+++ b/server/notification-providers/nostr.js
@@ -0,0 +1,119 @@
+const { log } = require("../../src/util");
+const NotificationProvider = require("./notification-provider");
+const {
+    relayInit,
+    getPublicKey,
+    getEventHash,
+    getSignature,
+    nip04,
+    nip19
+} = require("nostr-tools");
+
+// polyfills for node versions
+const semver = require("semver");
+const nodeVersion = process.version;
+if (semver.lt(nodeVersion, "16.0.0")) {
+    log.warn("monitor", "Node <= 16 is unsupported for nostr, sorry :(");
+} else if (semver.lt(nodeVersion, "18.0.0")) {
+    // polyfills for node 16
+    global.crypto = require("crypto");
+    global.WebSocket = require("isomorphic-ws");
+    if (typeof crypto !== "undefined" && !crypto.subtle && crypto.webcrypto) {
+        crypto.subtle = crypto.webcrypto.subtle;
+    }
+} else if (semver.lt(nodeVersion, "20.0.0")) {
+    // polyfills for node 18
+    global.crypto = require("crypto");
+    global.WebSocket = require("isomorphic-ws");
+} else {
+    // polyfills for node 20
+    global.WebSocket = require("isomorphic-ws");
+}
+
+class Nostr extends NotificationProvider {
+    name = "nostr";
+
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        // All DMs should have same timestamp
+        const createdAt = Math.floor(Date.now() / 1000);
+
+        const senderPrivateKey = await this.getPrivateKey(notification.sender);
+        const senderPublicKey = getPublicKey(senderPrivateKey);
+        const recipientsPublicKeys = await this.getPublicKeys(notification.recipients);
+
+        // Create NIP-04 encrypted direct message event for each recipient
+        const events = [];
+        for (const recipientPublicKey of recipientsPublicKeys) {
+            const ciphertext = await nip04.encrypt(senderPrivateKey, recipientPublicKey, msg);
+            let event = {
+                kind: 4,
+                pubkey: senderPublicKey,
+                created_at: createdAt,
+                tags: [[ "p", recipientPublicKey ]],
+                content: ciphertext,
+            };
+            event.id = getEventHash(event);
+            event.sig = getSignature(event, senderPrivateKey);
+            events.push(event);
+        }
+
+        // Publish events to each relay
+        const relays = notification.relays.split("\n");
+        let successfulRelays = 0;
+
+        // Connect to each relay
+        for (const relayUrl of relays) {
+            const relay = relayInit(relayUrl);
+            try {
+                await relay.connect();
+                successfulRelays++;
+
+                // Publish events
+                for (const event of events) {
+                    relay.publish(event);
+                }
+            } catch (error) {
+                continue;
+            } finally {
+                relay.close();
+            }
+        }
+
+        // Report success or failure
+        if (successfulRelays === 0) {
+            throw Error("Failed to connect to any relays.");
+        }
+        return `${successfulRelays}/${relays.length} relays connected.`;
+    }
+
+    async getPrivateKey(sender) {
+        try {
+            const senderDecodeResult = await nip19.decode(sender);
+            const { data } = senderDecodeResult;
+            return data;
+        } catch (error) {
+            throw new Error(`Failed to get private key: ${error.message}`);
+        }
+    }
+
+    async getPublicKeys(recipients) {
+        const recipientsList = recipients.split("\n");
+        const publicKeys = [];
+        for (const recipient of recipientsList) {
+            try {
+                const recipientDecodeResult = await nip19.decode(recipient);
+                const { type, data } = recipientDecodeResult;
+                if (type === "npub") {
+                    publicKeys.push(data);
+                } else {
+                    throw new Error("not an npub");
+                }
+            } catch (error) {
+                throw new Error(`Error decoding recipient: ${error}`);
+            }
+        }
+        return publicKeys;
+    }
+}
+
+module.exports = Nostr;
--- a/server/notification-providers/ntfy.js
+++ b/server/notification-providers/ntfy.js
@@ -1,5 +1,6 @@
 const NotificationProvider = require("./notification-provider");
 const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");

 class Ntfy extends NotificationProvider {

@@ -9,16 +10,54 @@ class Ntfy extends NotificationProvider {
        let okMsg = "Sent Successfully.";
        try {
            let headers = {};
-            if (notification.ntfyusername) {
+            if (notification.ntfyAuthenticationMethod === "usernamePassword") {
                headers = {
                    "Authorization": "Basic " + Buffer.from(notification.ntfyusername + ":" + notification.ntfypassword).toString("base64"),
                };
+            } else if (notification.ntfyAuthenticationMethod === "accessToken") {
+                headers = {
+                    "Authorization": "Bearer " + notification.ntfyaccesstoken,
+                };
+            }
+            // If heartbeatJSON is null, assume non monitoring notification (Certificate warning) or testing.
+            if (heartbeatJSON == null) {
+                let ntfyTestData = {
+                    "topic": notification.ntfytopic,
+                    "title": (monitorJSON?.name || notification.ntfytopic) + " [Uptime-Kuma]",
+                    "message": msg,
+                    "priority": notification.ntfyPriority,
+                    "tags": [ "test_tube" ],
+                };
+                await axios.post(`${notification.ntfyserverurl}`, ntfyTestData, { headers: headers });
+                return okMsg;
+            }
+            let tags = [];
+            let status = "unknown";
+            let priority = notification.ntfyPriority || 4;
+            if ("status" in heartbeatJSON) {
+                if (heartbeatJSON.status === DOWN) {
+                    tags = [ "red_circle" ];
+                    status = "Down";
+                    // if priority is not 5, increase priority for down alerts
+                    priority = priority === 5 ? priority : priority + 1;
+                } else if (heartbeatJSON["status"] === UP) {
+                    tags = [ "green_circle" ];
+                    status = "Up";
+                }
            }
            let data = {
                "topic": notification.ntfytopic,
-                "message": msg,
-                "priority": notification.ntfyPriority || 4,
-                "title": "Uptime-Kuma",
+                "message": heartbeatJSON.msg,
+                "priority": priority,
+                "title": monitorJSON.name + " " + status + " [Uptime-Kuma]",
+                "tags": tags,
+                "actions": [
+                    {
+                        "action": "view",
+                        "label": "Open " + monitorJSON.name,
+                        "url": monitorJSON.url,
+                    }
+                ]
            };

            if (notification.ntfyIcon) {
--- a/server/notification-providers/opsgenie.js
+++ b/server/notification-providers/opsgenie.js
@@ -0,0 +1,97 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { UP, DOWN } = require("../../src/util");
+
+const opsgenieAlertsUrlEU = "https://api.eu.opsgenie.com/v2/alerts";
+const opsgenieAlertsUrlUS = "https://api.opsgenie.com/v2/alerts";
+let okMsg = "Sent Successfully.";
+
+class Opsgenie extends NotificationProvider {
+
+    name = "Opsgenie";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        let opsgenieAlertsUrl;
+        let priority = (!notification.opsgeniePriority) ? 3 : notification.opsgeniePriority;
+        const textMsg = "Uptime Kuma Alert";
+
+        try {
+            switch (notification.opsgenieRegion) {
+                case "US":
+                    opsgenieAlertsUrl = opsgenieAlertsUrlUS;
+                    break;
+                case "EU":
+                    opsgenieAlertsUrl = opsgenieAlertsUrlEU;
+                    break;
+                default:
+                    opsgenieAlertsUrl = opsgenieAlertsUrlUS;
+            }
+
+            if (heartbeatJSON == null) {
+                let notificationTestAlias = "uptime-kuma-notification-test";
+                let data = {
+                    "message": msg,
+                    "alias": notificationTestAlias,
+                    "source": "Uptime Kuma",
+                    "priority": "P5"
+                };
+
+                return this.post(notification, opsgenieAlertsUrl, data);
+            }
+
+            if (heartbeatJSON.status === DOWN) {
+                let data = {
+                    "message": monitorJSON ? textMsg + `: ${monitorJSON.name}` : textMsg,
+                    "alias": monitorJSON.name,
+                    "description": msg,
+                    "source": "Uptime Kuma",
+                    "priority": `P${priority}`
+                };
+
+                return this.post(notification, opsgenieAlertsUrl, data);
+            }
+
+            if (heartbeatJSON.status === UP) {
+                let opsgenieAlertsCloseUrl = `${opsgenieAlertsUrl}/${encodeURIComponent(monitorJSON.name)}/close?identifierType=alias`;
+                let data = {
+                    "source": "Uptime Kuma",
+                };
+
+                return this.post(notification, opsgenieAlertsCloseUrl, data);
+            }
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     *
+     * @param {BeanModel} notification
+     * @param {string} url Request url
+     * @param {Object} data Request body
+     * @returns {Promise<string>}
+     */
+    async post(notification, url, data) {
+        let config = {
+            headers: {
+                "Content-Type": "application/json",
+                "Authorization": `GenieKey ${notification.opsgenieApiKey}`,
+            }
+        };
+
+        let res = await axios.post(url, data, config);
+        if (res.status == null) {
+            return "Opsgenie notification failed with invalid response!";
+        }
+        if (res.status < 200 || res.status >= 300) {
+            return `Opsgenie notification failed with status code ${res.status}`;
+        }
+
+        return okMsg;
+    }
+}
+
+module.exports = Opsgenie;
--- a/server/notification-providers/pushbullet.js
+++ b/server/notification-providers/pushbullet.js
@@ -29,14 +29,18 @@ class Pushbullet extends NotificationProvider {
                let downData = {
                    "type": "note",
                    "title": "UptimeKuma Alert: " + monitorJSON["name"],
-                    "body": "[🔴 Down] " + heartbeatJSON["msg"] + "\nTime (UTC): " + heartbeatJSON["time"],
+                    "body": "[🔴 Down] " +
+                        heartbeatJSON["msg"] +
+                        `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`,
                };
                await axios.post(pushbulletUrl, downData, config);
            } else if (heartbeatJSON["status"] === UP) {
                let upData = {
                    "type": "note",
                    "title": "UptimeKuma Alert: " + monitorJSON["name"],
-                    "body": "[✅ Up] " + heartbeatJSON["msg"] + "\nTime (UTC): " + heartbeatJSON["time"],
+                    "body": "[✅ Up] " +
+                        heartbeatJSON["msg"] +
+                        `\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`,
                };
                await axios.post(pushbulletUrl, upData, config);
            }
--- a/server/notification-providers/pushdeer.js
+++ b/server/notification-providers/pushdeer.js
@@ -8,7 +8,9 @@ class PushDeer extends NotificationProvider {

    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
        let okMsg = "Sent Successfully.";
-        let pushdeerlink = "https://api2.pushdeer.com/message/push";
+        let endpoint = "/message/push";
+        let serverUrl = notification.pushdeerServer || "https://api2.pushdeer.com";
+        let pushdeerlink = `${serverUrl.trim().replace(/\/*$/, "")}${endpoint}`;

        let valid = msg != null && monitorJSON != null && heartbeatJSON != null;

--- a/server/notification-providers/pushover.js
+++ b/server/notification-providers/pushover.js
@@ -24,13 +24,16 @@ class Pushover extends NotificationProvider {
        if (notification.pushoverdevice) {
            data.device = notification.pushoverdevice;
        }
+        if (notification.pushoverttl) {
+            data.ttl = notification.pushoverttl;
+        }

        try {
            if (heartbeatJSON == null) {
                await axios.post(pushoverlink, data);
                return okMsg;
            } else {
-                data.message += "\n<b>Time (UTC)</b>:" + heartbeatJSON["time"];
+                data.message += `\n<b>Time (${heartbeatJSON["timezone"]})</b>:${heartbeatJSON["localDateTime"]}`;
                await axios.post(pushoverlink, data);
                return okMsg;
            }
--- a/server/notification-providers/rocket-chat.js
+++ b/server/notification-providers/rocket-chat.js
@@ -22,8 +22,6 @@ class RocketChat extends NotificationProvider {
                return okMsg;
            }

-            const time = heartbeatJSON["time"];
-
            let data = {
                "text": "Uptime Kuma Alert",
                "channel": notification.rocketchannel,
@@ -31,7 +29,7 @@ class RocketChat extends NotificationProvider {
                "icon_emoji": notification.rocketiconemo,
                "attachments": [
                    {
-                        "title": "Uptime Kuma Alert *Time (UTC)*\n" + time,
+                        "title": `Uptime Kuma Alert *Time (${heartbeatJSON["timezone"]})*\n${heartbeatJSON["localDateTime"]}`,
                        "text": "*Message*\n" + msg,
                    }
                ]
--- a/server/notification-providers/slack.js
+++ b/server/notification-providers/slack.js
@@ -27,6 +27,11 @@ class Slack extends NotificationProvider {

    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
        let okMsg = "Sent Successfully.";
+
+        if (notification.slackchannelnotify) {
+            msg += " <!channel>";
+        }
+
        try {
            if (heartbeatJSON == null) {
                let data = {
@@ -39,7 +44,6 @@ class Slack extends NotificationProvider {
                return okMsg;
            }

-            const time = heartbeatJSON["time"];
            const textMsg = "Uptime Kuma Alert";
            let data = {
                "text": `${textMsg}\n${msg}`,
@@ -54,7 +58,7 @@ class Slack extends NotificationProvider {
                                "type": "header",
                                "text": {
                                    "type": "plain_text",
-                                    "text": "Uptime Kuma Alert",
+                                    "text": textMsg,
                                },
                            },
                            {
@@ -65,7 +69,7 @@ class Slack extends NotificationProvider {
                                },
                                {
                                    "type": "mrkdwn",
-                                    "text": "*Time (UTC)*\n" + time,
+                                    "text": `*Time (${heartbeatJSON["timezone"]})*\n${heartbeatJSON["localDateTime"]}`,
                                }],
                            }
                        ],
--- a/server/notification-providers/smsc.js
+++ b/server/notification-providers/smsc.js
@@ -0,0 +1,42 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class SMSC extends NotificationProvider {
+    name = "smsc";
+
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        let okMsg = "Sent Successfully.";
+        try {
+            let config = {
+                headers: {
+                    "Content-Type": "application/json",
+                    "Accept": "text/json",
+                }
+            };
+
+            let getArray = [
+                "fmt=3",
+                "translit=" + notification.smscTranslit,
+                "login=" + notification.smscLogin,
+                "psw=" + notification.smscPassword,
+                "phones=" + notification.smscToNumber,
+                "mes=" + encodeURIComponent(msg.replace(/[^\x00-\x7F]/g, "")),
+            ];
+            if (notification.smscSenderName !== "") {
+                getArray.push("sender=" + notification.smscSenderName);
+            }
+
+            let resp = await axios.get("https://smsc.kz/sys/send.php?" + getArray.join("&"), config);
+            if (resp.data.id === undefined) {
+                let error = `Something gone wrong. Api returned code ${resp.data.error_code}: ${resp.data.error}`;
+                this.throwGeneralAxiosError(error);
+            }
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = SMSC;
--- a/server/notification-providers/smtp.js
+++ b/server/notification-providers/smtp.js
@@ -13,7 +13,7 @@ class SMTP extends NotificationProvider {
            port: notification.smtpPort,
            secure: notification.smtpSecure,
            tls: {
-                rejectUnauthorized: notification.smtpIgnoreTLSError || false,
+                rejectUnauthorized: !notification.smtpIgnoreTLSError || false,
            }
        };

@@ -67,7 +67,7 @@ class SMTP extends NotificationProvider {
                if (monitorJSON !== null) {
                    monitorName = monitorJSON["name"];

-                    if (monitorJSON["type"] === "http" || monitorJSON["type"] === "keyword") {
+                    if (monitorJSON["type"] === "http" || monitorJSON["type"] === "keyword" || monitorJSON["type"] === "json-query") {
                        monitorHostnameOrURL = monitorJSON["url"];
                    } else {
                        monitorHostnameOrURL = monitorJSON["hostname"];
@@ -91,7 +91,7 @@ class SMTP extends NotificationProvider {

        let bodyTextContent = msg;
        if (heartbeatJSON) {
-            bodyTextContent = `${msg}\nTime (UTC): ${heartbeatJSON["time"]}`;
+            bodyTextContent = `${msg}\nTime (${heartbeatJSON["timezone"]}): ${heartbeatJSON["localDateTime"]}`;
        }

        // send mail with defined transport object
--- a/server/notification-providers/telegram.js
+++ b/server/notification-providers/telegram.js
@@ -25,8 +25,11 @@ class Telegram extends NotificationProvider {
            return okMsg;

        } catch (error) {
-            let msg = (error.response.data.description) ? error.response.data.description : "Error without description";
-            throw new Error(msg);
+            if (error.response && error.response.data && error.response.data.description) {
+                throw new Error(error.response.data.description);
+            } else {
+                throw new Error(error.message);
+            }
        }
    }
 }
--- a/server/notification-providers/twilio.js
+++ b/server/notification-providers/twilio.js
@@ -0,0 +1,42 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+
+class Twilio extends NotificationProvider {
+
+    name = "twilio";
+
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+
+        let okMsg = "Sent Successfully.";
+
+        let accountSID = notification.twilioAccountSID;
+        let apiKey = notification.twilioApiKey ? notification.twilioApiKey : accountSID;
+        let authToken = notification.twilioAuthToken;
+
+        try {
+
+            let config = {
+                headers: {
+                    "Content-Type": "application/x-www-form-urlencoded;charset=utf-8",
+                    "Authorization": "Basic " + Buffer.from(apiKey + ":" + authToken).toString("base64"),
+                }
+            };
+
+            let data = new URLSearchParams();
+            data.append("To", notification.twilioToNumber);
+            data.append("From", notification.twilioFromNumber);
+            data.append("Body", msg);
+
+            let url = "https://api.twilio.com/2010-04-01/Accounts/" + accountSID + "/Messages.json";
+
+            await axios.post(url, data, config);
+
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+}
+
+module.exports = Twilio;
--- a/server/notification-providers/webhook.js
+++ b/server/notification-providers/webhook.js
@@ -1,6 +1,7 @@
 const NotificationProvider = require("./notification-provider");
 const axios = require("axios");
 const FormData = require("form-data");
+const { Liquid } = require("liquidjs");

 class Webhook extends NotificationProvider {

@@ -15,17 +16,27 @@ class Webhook extends NotificationProvider {
                monitor: monitorJSON,
                msg,
            };
-            let finalData;
            let config = {
                headers: {}
            };

            if (notification.webhookContentType === "form-data") {
-                finalData = new FormData();
-                finalData.append("data", JSON.stringify(data));
-                config.headers = finalData.getHeaders();
-            } else {
-                finalData = data;
+                const formData = new FormData();
+                formData.append("data", JSON.stringify(data));
+                config.headers = formData.getHeaders();
+                data = formData;
+            } else if (notification.webhookContentType === "custom") {
+                // Initialize LiquidJS and parse the custom Body Template
+                const engine = new Liquid();
+                const tpl = engine.parse(notification.webhookCustomBody);
+
+                // Insert templated values into Body
+                data = await engine.render(tpl,
+                    {
+                        msg,
+                        heartbeatJSON,
+                        monitorJSON
+                    });
            }

            if (notification.webhookAdditionalHeaders) {
@@ -39,7 +50,7 @@ class Webhook extends NotificationProvider {
                }
            }

-            await axios.post(notification.webhookURL, finalData, config);
+            await axios.post(notification.webhookURL, data, config);
            return okMsg;

        } catch (error) {
--- a/server/notification.js
+++ b/server/notification.js
@@ -6,6 +6,7 @@ const AliyunSms = require("./notification-providers/aliyun-sms");
 const Apprise = require("./notification-providers/apprise");
 const Bark = require("./notification-providers/bark");
 const ClickSendSMS = require("./notification-providers/clicksendsms");
+const SMSC = require("./notification-providers/smsc");
 const DingDing = require("./notification-providers/dingding");
 const Discord = require("./notification-providers/discord");
 const Feishu = require("./notification-providers/feishu");
@@ -20,10 +21,13 @@ const LineNotify = require("./notification-providers/linenotify");
 const LunaSea = require("./notification-providers/lunasea");
 const Matrix = require("./notification-providers/matrix");
 const Mattermost = require("./notification-providers/mattermost");
+const Nostr = require("./notification-providers/nostr");
 const Ntfy = require("./notification-providers/ntfy");
 const Octopush = require("./notification-providers/octopush");
 const OneBot = require("./notification-providers/onebot");
+const Opsgenie = require("./notification-providers/opsgenie");
 const PagerDuty = require("./notification-providers/pagerduty");
+const FlashDuty = require("./notification-providers/flashduty");
 const PagerTree = require("./notification-providers/pagertree");
 const PromoSMS = require("./notification-providers/promosms");
 const Pushbullet = require("./notification-providers/pushbullet");
@@ -41,6 +45,7 @@ const Stackfield = require("./notification-providers/stackfield");
 const Teams = require("./notification-providers/teams");
 const TechulusPush = require("./notification-providers/techulus-push");
 const Telegram = require("./notification-providers/telegram");
+const Twilio = require("./notification-providers/twilio");
 const Splunk = require("./notification-providers/splunk");
 const Webhook = require("./notification-providers/webhook");
 const WeCom = require("./notification-providers/wecom");
@@ -66,6 +71,7 @@ class Notification {
            new Apprise(),
            new Bark(),
            new ClickSendSMS(),
+            new SMSC(),
            new DingDing(),
            new Discord(),
            new Feishu(),
@@ -80,10 +86,13 @@ class Notification {
            new LunaSea(),
            new Matrix(),
            new Mattermost(),
+            new Nostr(),
            new Ntfy(),
            new Octopush(),
            new OneBot(),
+            new Opsgenie(),
            new PagerDuty(),
+            new FlashDuty(),
            new PagerTree(),
            new PromoSMS(),
            new Pushbullet(),
@@ -103,13 +112,13 @@ class Notification {
            new Teams(),
            new TechulusPush(),
            new Telegram(),
+            new Twilio(),
            new Splunk(),
            new Webhook(),
            new WeCom(),
            new GoAlert(),
            new ZohoCliq()
        ];
-
        for (let item of list) {
            if (! item.name) {
                throw new Error("Notification provider without name");
--- a/server/plugin.js
+++ b/server/plugin.js
@@ -1,13 +0,0 @@
-class Plugin {
-    async load() {
-
-    }
-
-    async unload() {
-
-    }
-}
-
-module.exports = {
-    Plugin,
-};
--- a/server/plugins-manager.js
+++ b/server/plugins-manager.js
@@ -1,256 +0,0 @@
-const fs = require("fs");
-const { log } = require("../src/util");
-const path = require("path");
-const axios = require("axios");
-const { Git } = require("./git");
-const childProcess = require("child_process");
-
-class PluginsManager {
-
-    static disable = false;
-
-    /**
-     * Plugin List
-     * @type {PluginWrapper[]}
-     */
-    pluginList = [];
-
-    /**
-     * Plugins Dir
-     */
-    pluginsDir;
-
-    server;
-
-    /**
-     *
-     * @param {UptimeKumaServer} server
-     */
-    constructor(server) {
-        this.server = server;
-
-        if (!PluginsManager.disable) {
-            this.pluginsDir = "./data/plugins/";
-
-            if (! fs.existsSync(this.pluginsDir)) {
-                fs.mkdirSync(this.pluginsDir, { recursive: true });
-            }
-
-            log.debug("plugin", "Scanning plugin directory");
-            let list = fs.readdirSync(this.pluginsDir);
-
-            this.pluginList = [];
-            for (let item of list) {
-                this.loadPlugin(item);
-            }
-
-        } else {
-            log.warn("PLUGIN", "Skip scanning plugin directory");
-        }
-
-    }
-
-    /**
-     * Install a Plugin
-     */
-    async loadPlugin(name) {
-        log.info("plugin", "Load " + name);
-        let plugin = new PluginWrapper(this.server, this.pluginsDir + name);
-
-        try {
-            await plugin.load();
-            this.pluginList.push(plugin);
-        } catch (e) {
-            log.error("plugin", "Failed to load plugin: " + this.pluginsDir + name);
-            log.error("plugin", "Reason: " + e.message);
-        }
-    }
-
-    /**
-     * Download a Plugin
-     * @param {string} repoURL Git repo url
-     * @param {string} name Directory name, also known as plugin unique name
-     */
-    downloadPlugin(repoURL, name) {
-        if (fs.existsSync(this.pluginsDir + name)) {
-            log.info("plugin", "Plugin folder already exists? Removing...");
-            fs.rmSync(this.pluginsDir + name, {
-                recursive: true
-            });
-        }
-        log.info("plugin", "Installing plugin: " + name + " " + repoURL);
-        let result = Git.clone(repoURL, this.pluginsDir, name);
-        log.info("plugin", "Install result: " + result);
-    }
-
-    /**
-     * Remove a plugin
-     * @param {string} name
-     */
-    async removePlugin(name) {
-        log.info("plugin", "Removing plugin: " + name);
-        for (let plugin of this.pluginList) {
-            if (plugin.info.name === name) {
-                await plugin.unload();
-
-                // Delete the plugin directory
-                fs.rmSync(this.pluginsDir + name, {
-                    recursive: true
-                });
-
-                this.pluginList.splice(this.pluginList.indexOf(plugin), 1);
-                return;
-            }
-        }
-        log.warn("plugin", "Plugin not found: " + name);
-        throw new Error("Plugin not found: " + name);
-    }
-
-    /**
-     * TODO: Update a plugin
-     * Only available for plugins which were downloaded from the official list
-     * @param pluginID
-     */
-    updatePlugin(pluginID) {
-
-    }
-
-    /**
-     * Get the plugin list from server + local installed plugin list
-     * Item will be merged if the `name` is the same.
-     * @returns {Promise<[]>}
-     */
-    async fetchPluginList() {
-        let remotePluginList;
-        try {
-            const res = await axios.get("https://uptime.kuma.pet/c/plugins.json");
-            remotePluginList = res.data.pluginList;
-        } catch (e) {
-            log.error("plugin", "Failed to fetch plugin list: " + e.message);
-            remotePluginList = [];
-        }
-
-        for (let plugin of this.pluginList) {
-            let find = false;
-            // Try to merge
-            for (let remotePlugin of remotePluginList) {
-                if (remotePlugin.name === plugin.info.name) {
-                    find = true;
-                    remotePlugin.installed = true;
-                    remotePlugin.name = plugin.info.name;
-                    remotePlugin.fullName = plugin.info.fullName;
-                    remotePlugin.description = plugin.info.description;
-                    remotePlugin.version = plugin.info.version;
-                    break;
-                }
-            }
-
-            // Local plugin
-            if (!find) {
-                plugin.info.local = true;
-                remotePluginList.push(plugin.info);
-            }
-        }
-
-        // Sort Installed first, then sort by name
-        return remotePluginList.sort((a, b) => {
-            if (a.installed === b.installed) {
-                if (a.fullName < b.fullName) {
-                    return -1;
-                }
-                if (a.fullName > b.fullName) {
-                    return 1;
-                }
-                return 0;
-            } else if (a.installed) {
-                return -1;
-            } else {
-                return 1;
-            }
-        });
-    }
-}
-
-class PluginWrapper {
-
-    server = undefined;
-    pluginDir = undefined;
-
-    /**
-     * Must be an `new-able` class.
-     * @type {function}
-     */
-    pluginClass = undefined;
-
-    /**
-     *
-     * @type {Plugin}
-     */
-    object = undefined;
-    info = {};
-
-    /**
-     *
-     * @param {UptimeKumaServer} server
-     * @param {string} pluginDir
-     */
-    constructor(server, pluginDir) {
-        this.server = server;
-        this.pluginDir = pluginDir;
-    }
-
-    async load() {
-        let indexFile = this.pluginDir + "/index.js";
-        let packageJSON = this.pluginDir + "/package.json";
-
-        log.info("plugin", "Installing dependencies");
-
-        if (fs.existsSync(indexFile)) {
-            // Install dependencies
-            let result = childProcess.spawnSync("npm", [ "install" ], {
-                cwd: this.pluginDir,
-                env: {
-                    ...process.env,
-                    PLAYWRIGHT_BROWSERS_PATH: "../../browsers",    // Special handling for read-browser-monitor
-                }
-            });
-
-            if (result.stdout) {
-                log.info("plugin", "Install dependencies result: " + result.stdout.toString("utf-8"));
-            } else {
-                log.warn("plugin", "Install dependencies result: no output");
-            }
-
-            this.pluginClass = require(path.join(process.cwd(), indexFile));
-
-            let pluginClassType = typeof this.pluginClass;
-
-            if (pluginClassType === "function") {
-                this.object = new this.pluginClass(this.server);
-                await this.object.load();
-            } else {
-                throw new Error("Invalid plugin, it does not export a class");
-            }
-
-            if (fs.existsSync(packageJSON)) {
-                this.info = require(path.join(process.cwd(), packageJSON));
-            } else {
-                this.info.fullName = this.pluginDir;
-                this.info.name = "[unknown]";
-                this.info.version = "[unknown-version]";
-            }
-
-            this.info.installed = true;
-            log.info("plugin", `${this.info.fullName} v${this.info.version} loaded`);
-        }
-    }
-
-    async unload() {
-        await this.object.unload();
-    }
-}
-
-module.exports = {
-    PluginsManager,
-    PluginWrapper
-};
--- a/server/prometheus.js
+++ b/server/prometheus.js
@@ -28,7 +28,7 @@ const monitorResponseTime = new PrometheusClient.Gauge({

 const monitorStatus = new PrometheusClient.Gauge({
    name: "monitor_status",
-    help: "Monitor Status (1 = UP, 0= DOWN)",
+    help: "Monitor Status (1 = UP, 0= DOWN, 2= PENDING, 3= MAINTENANCE)",
    labelNames: commonLabels
 });

--- a/server/proxy.js
+++ b/server/proxy.js
@@ -132,6 +132,9 @@ class Proxy {
                    ...httpAgentOptions,
                    ...httpsAgentOptions,
                    ...proxyOptions,
+                    tls: {
+                        rejectUnauthorized: httpsAgentOptions.rejectUnauthorized,
+                    },
                });

                httpAgent = agent;
--- a/server/routers/api-router.js
+++ b/server/routers/api-router.js
@@ -10,6 +10,7 @@ const { UptimeKumaServer } = require("../uptime-kuma-server");
 const { UptimeCacheList } = require("../uptime-cache-list");
 const { makeBadge } = require("badge-maker");
 const { badgeConstants } = require("../config");
+const { Prometheus } = require("../prometheus");

 let router = express.Router();

@@ -37,7 +38,7 @@ router.get("/api/push/:pushToken", async (request, response) => {

        let pushToken = request.params.pushToken;
        let msg = request.query.msg || "OK";
-        let ping = request.query.ping || null;
+        let ping = parseInt(request.query.ping) || null;
        let statusString = request.query.status || "up";
        let status = (statusString === "up") ? UP : DOWN;

@@ -89,6 +90,7 @@ router.get("/api/push/:pushToken", async (request, response) => {
        io.to(monitor.user_id).emit("heartbeat", bean.toJSON());
        UptimeCacheList.clearCache(monitor.id);
        Monitor.sendStats(io, monitor.id, monitor.user_id);
+        new Prometheus(monitor).update(bean, undefined);

        response.json({
            ok: true,
@@ -147,7 +149,11 @@ router.get("/api/badge/:id/status", cache("5 minutes"), async (request, response
            const heartbeat = await Monitor.getPreviousHeartbeat(requestedMonitorId);
            const state = overrideValue !== undefined ? overrideValue : heartbeat.status;

-            badgeValues.label = label ?? "Status";
+            if (label === undefined) {
+                badgeValues.label = "Status";
+            } else {
+                badgeValues.label = label;
+            }
            switch (state) {
                case DOWN:
                    badgeValues.color = downColor;
@@ -224,7 +230,7 @@ router.get("/api/badge/:id/uptime/:duration?", cache("5 minutes"), async (reques
            );

            // limit the displayed uptime percentage to four (two, when displayed as percent) decimal digits
-            const cleanUptime = parseFloat(uptime.toPrecision(4));
+            const cleanUptime = (uptime * 100).toPrecision(4);

            // use a given, custom color or calculate one based on the uptime value
            badgeValues.color = color ?? percentageToColor(uptime);
@@ -235,7 +241,7 @@ router.get("/api/badge/:id/uptime/:duration?", cache("5 minutes"), async (reques
                labelPrefix,
                label ?? `Uptime (${requestedDuration}${labelSuffix})`,
            ]);
-            badgeValues.message = filterAndJoin([ prefix, `${cleanUptime * 100}`, suffix ]);
+            badgeValues.message = filterAndJoin([ prefix, cleanUptime, suffix ]);
        }

        // build the SVG based on given values
@@ -436,7 +442,7 @@ router.get("/api/badge/:id/cert-exp", cache("5 minutes"), async (request, respon
                if (!tlsInfo.valid) {
                    // return a "Bad Cert" badge in naColor (grey), when cert is not valid
                    badgeValues.message = "Bad Cert";
-                    badgeValues.color = badgeConstants.downColor;
+                    badgeValues.color = downColor;
                } else {
                    const daysRemaining = parseInt(overrideValue ?? tlsInfo.certInfo.daysRemaining);

--- a/server/routers/status-page-router.js
+++ b/server/routers/status-page-router.js
@@ -5,6 +5,8 @@ const StatusPage = require("../model/status_page");
 const { allowDevAllOrigin, sendHttpError } = require("../util-server");
 const { R } = require("redbean-node");
 const Monitor = require("../model/monitor");
+const { badgeConstants } = require("../config");
+const { makeBadge } = require("badge-maker");

 let router = express.Router();

@@ -139,4 +141,100 @@ router.get("/api/status-page/:slug/manifest.json", cache("1440 minutes"), async
    }
 });

+// overall status-page status badge
+router.get("/api/status-page/:slug/badge", cache("5 minutes"), async (request, response) => {
+    allowDevAllOrigin(response);
+    const slug = request.params.slug;
+    const statusPageID = await StatusPage.slugToID(slug);
+    const {
+        label,
+        upColor = badgeConstants.defaultUpColor,
+        downColor = badgeConstants.defaultDownColor,
+        partialColor = "#F6BE00",
+        maintenanceColor = "#808080",
+        style = badgeConstants.defaultStyle
+    } = request.query;
+
+    try {
+        let monitorIDList = await R.getCol(`
+            SELECT monitor_group.monitor_id FROM monitor_group, \`group\`
+            WHERE monitor_group.group_id = \`group\`.id
+            AND public = 1
+            AND \`group\`.status_page_id = ?
+        `, [
+            statusPageID
+        ]);
+
+        let hasUp = false;
+        let hasDown = false;
+        let hasMaintenance = false;
+
+        for (let monitorID of monitorIDList) {
+            // retrieve the latest heartbeat
+            let beat = await R.getAll(`
+                    SELECT * FROM heartbeat
+                    WHERE monitor_id = ?
+                    ORDER BY time DESC
+                    LIMIT 1
+            `, [
+                monitorID,
+            ]);
+
+            // to be sure, when corresponding monitor not found
+            if (beat.length === 0) {
+                continue;
+            }
+            // handle status of beat
+            if (beat[0].status === 3) {
+                hasMaintenance = true;
+            } else if (beat[0].status === 2) {
+                // ignored
+            } else if (beat[0].status === 1) {
+                hasUp = true;
+            } else {
+                hasDown = true;
+            }
+
+        }
+
+        const badgeValues = { style };
+
+        if (!hasUp && !hasDown && !hasMaintenance) {
+            // return a "N/A" badge in naColor (grey), if monitor is not public / not available / non exsitant
+
+            badgeValues.message = "N/A";
+            badgeValues.color = badgeConstants.naColor;
+
+        } else {
+            if (hasMaintenance) {
+                badgeValues.label = label ? label : "";
+                badgeValues.color = maintenanceColor;
+                badgeValues.message = "Maintenance";
+            } else if (hasUp && !hasDown) {
+                badgeValues.label = label ? label : "";
+                badgeValues.color = upColor;
+                badgeValues.message = "Up";
+            } else if (hasUp && hasDown) {
+                badgeValues.label = label ? label : "";
+                badgeValues.color = partialColor;
+                badgeValues.message = "Degraded";
+            } else {
+                badgeValues.label = label ? label : "";
+                badgeValues.color = downColor;
+                badgeValues.message = "Down";
+            }
+
+        }
+
+        // build the svg based on given values
+        const svg = makeBadge(badgeValues);
+
+        response.type("image/svg+xml");
+        response.send(svg);
+
+    } catch (error) {
+        sendHttpError(response, error.message);
+    }
+});
+
 module.exports = router;
--- a/server/server.js
+++ b/server/server.js
@@ -15,15 +15,27 @@ dayjs.extend(require("dayjs/plugin/customParseFormat"));
 require("dotenv").config();

 // Check Node.js Version
-const nodeVersion = parseInt(process.versions.node.split(".")[0]);
-const requiredVersion = 14;
+const nodeVersion = process.versions.node;
+
+// Get the required Node.js version from package.json
+const requiredNodeVersions = require("../package.json").engines.node;
+const bannedNodeVersions = " < 14 || 20.0.* || 20.1.* || 20.2.* || 20.3.* ";
 console.log(`Your Node.js version: ${nodeVersion}`);

-if (nodeVersion < requiredVersion) {
-    console.error(`Error: Your Node.js version is not supported, please upgrade to Node.js >= ${requiredVersion}.`);
+const semver = require("semver");
+const requiredNodeVersionsComma = requiredNodeVersions.split("||").map((version) => version.trim()).join(", ");
+
+// Exit Uptime Kuma immediately if the Node.js version is banned
+if (semver.satisfies(nodeVersion, bannedNodeVersions)) {
+    console.error("\x1b[31m%s\x1b[0m", `Error: Your Node.js version: ${nodeVersion} is not supported, please upgrade your Node.js to ${requiredNodeVersionsComma}.`);
    process.exit(-1);
 }

+// Warning if the Node.js version is not in the support list, but it maybe still works
+if (!semver.satisfies(nodeVersion, requiredNodeVersions)) {
+    console.warn("\x1b[31m%s\x1b[0m", `Warning: Your Node.js version: ${nodeVersion} is not officially supported, please upgrade your Node.js to ${requiredNodeVersionsComma}.`);
+}
+
 const args = require("args-parser")(process.argv);
 const { sleep, log, getRandomInt, genSecret, isDev } = require("../src/util");
 const config = require("./config");
@@ -37,6 +49,7 @@ if (! process.env.NODE_ENV) {
 }

 log.info("server", "Node Env: " + process.env.NODE_ENV);
+log.info("server", "Inside Container: " + (process.env.UPTIME_KUMA_IS_CONTAINER === "1"));

 log.info("server", "Importing Node libraries");
 const fs = require("fs");
@@ -142,7 +155,8 @@ const { apiKeySocketHandler } = require("./socket-handlers/api-key-socket-handle
 const { generalSocketHandler } = require("./socket-handlers/general-socket-handler");
 const { Settings } = require("./settings");
 const { CacheableDnsHttpAgent } = require("./cacheable-dns-http-agent");
-const { pluginsHandler } = require("./socket-handlers/plugins-handler");
+const apicache = require("./modules/apicache");
+const { resetChrome } = require("./monitor-types/real-browser-monitor-type");

 app.use(express.json());

@@ -155,12 +169,6 @@ app.use(function (req, res, next) {
    next();
 });

-/**
- * Use for decode the auth object
- * @type {null}
- */
-let jwtSecret = null;
-
 /**
 * Show Setup Page
 * @type {boolean}
@@ -171,7 +179,6 @@ let needSetup = false;
    Database.init(args);
    await initDatabase(testMode);
    await server.initAfterDatabaseReady();
-    server.loadPlugins();
    server.entryPage = await Settings.get("entryPage");
    await StatusPage.loadDomainMappingList();

@@ -209,6 +216,7 @@ let needSetup = false;
    });

    if (isDev) {
+        app.use(express.urlencoded({ extended: true }));
        app.post("/test-webhook", async (request, response) => {
            log.debug("test", request.headers);
            log.debug("test", request.body);
@@ -263,7 +271,7 @@ let needSetup = false;
    log.info("server", "Adding socket handler");
    io.on("connection", async (socket) => {

-        sendInfo(socket);
+        sendInfo(socket, true);

        if (needSetup) {
            log.info("server", "Redirect to setup page");
@@ -280,7 +288,7 @@ let needSetup = false;
            log.info("auth", `Login by token. IP=${clientIP}`);

            try {
-                let decoded = jwt.verify(token, jwtSecret);
+                let decoded = jwt.verify(token, server.jwtSecret);

                log.info("auth", "Username from JWT: " + decoded.username);

@@ -351,7 +359,7 @@ let needSetup = false;
                        ok: true,
                        token: jwt.sign({
                            username: data.username,
-                        }, jwtSecret),
+                        }, server.jwtSecret),
                    });
                }

@@ -381,7 +389,7 @@ let needSetup = false;
                            ok: true,
                            token: jwt.sign({
                                username: data.username,
-                            }, jwtSecret),
+                            }, server.jwtSecret),
                        });
                    } else {

@@ -633,9 +641,16 @@ let needSetup = false;
                let notificationIDList = monitor.notificationIDList;
                delete monitor.notificationIDList;

+                // Ensure status code ranges are strings
+                if (!monitor.accepted_statuscodes.every((code) => typeof code === "string")) {
+                    throw new Error("Accepted status codes are not all strings");
+                }
                monitor.accepted_statuscodes_json = JSON.stringify(monitor.accepted_statuscodes);
                delete monitor.accepted_statuscodes;

+                monitor.kafkaProducerBrokers = JSON.stringify(monitor.kafkaProducerBrokers);
+                monitor.kafkaProducerSaslOptions = JSON.stringify(monitor.kafkaProducerSaslOptions);
+
                bean.import(monitor);
                bean.user_id = socket.userID;

@@ -646,7 +661,10 @@ let needSetup = false;
                await updateMonitorNotification(bean.id, notificationIDList);

                await server.sendMonitorList(socket);
-                await startMonitor(socket.userID, bean.id);
+
+                if (monitor.active !== false) {
+                    await startMonitor(socket.userID, bean.id);
+                }

                log.info("monitor", `Added Monitor: ${monitor.id} User ID: ${socket.userID}`);

@@ -670,6 +688,7 @@ let needSetup = false;
        // Edit a monitor
        socket.on("editMonitor", async (monitor, callback) => {
            try {
+                let removeGroupChildren = false;
                checkLogin(socket);

                let bean = await R.findOne("monitor", " id = ? ", [ monitor.id ]);
@@ -678,8 +697,27 @@ let needSetup = false;
                    throw new Error("Permission denied.");
                }

+                // Check if Parent is Descendant (would cause endless loop)
+                if (monitor.parent !== null) {
+                    const childIDs = await Monitor.getAllChildrenIDs(monitor.id);
+                    if (childIDs.includes(monitor.parent)) {
+                        throw new Error("Invalid Monitor Group");
+                    }
+                }
+
+                // Remove children if monitor type has changed (from group to non-group)
+                if (bean.type === "group" && monitor.type !== bean.type) {
+                    removeGroupChildren = true;
+                }
+
+                // Ensure status code ranges are strings
+                if (!monitor.accepted_statuscodes.every((code) => typeof code === "string")) {
+                    throw new Error("Accepted status codes are not all strings");
+                }
+
                bean.name = monitor.name;
                bean.description = monitor.description;
+                bean.parent = monitor.parent;
                bean.type = monitor.type;
                bean.url = monitor.url;
                bean.method = monitor.method;
@@ -687,6 +725,15 @@ let needSetup = false;
                bean.headers = monitor.headers;
                bean.basic_auth_user = monitor.basic_auth_user;
                bean.basic_auth_pass = monitor.basic_auth_pass;
+                bean.timeout = monitor.timeout;
+                bean.oauth_client_id = monitor.oauth_client_id,
+                bean.oauth_client_secret = monitor.oauth_client_secret,
+                bean.oauth_auth_method = this.oauth_auth_method,
+                bean.oauth_token_url = monitor.oauth_token_url,
+                bean.oauth_scopes = monitor.oauth_scopes,
+                bean.tlsCa = monitor.tlsCa;
+                bean.tlsCert = monitor.tlsCert;
+                bean.tlsKey = monitor.tlsKey;
                bean.interval = monitor.interval;
                bean.retryInterval = monitor.retryInterval;
                bean.resendInterval = monitor.resendInterval;
@@ -695,6 +742,7 @@ let needSetup = false;
                bean.maxretries = monitor.maxretries;
                bean.port = parseInt(monitor.port);
                bean.keyword = monitor.keyword;
+                bean.invertKeyword = monitor.invertKeyword;
                bean.ignoreTls = monitor.ignoreTls;
                bean.expiryNotification = monitor.expiryNotification;
                bean.upsideDown = monitor.upsideDown;
@@ -729,14 +777,26 @@ let needSetup = false;
                bean.radiusCallingStationId = monitor.radiusCallingStationId;
                bean.radiusSecret = monitor.radiusSecret;
                bean.httpBodyEncoding = monitor.httpBodyEncoding;
+                bean.expectedValue = monitor.expectedValue;
+                bean.jsonPath = monitor.jsonPath;
+                bean.kafkaProducerTopic = monitor.kafkaProducerTopic;
+                bean.kafkaProducerBrokers = JSON.stringify(monitor.kafkaProducerBrokers);
+                bean.kafkaProducerAllowAutoTopicCreation = monitor.kafkaProducerAllowAutoTopicCreation;
+                bean.kafkaProducerSaslOptions = JSON.stringify(monitor.kafkaProducerSaslOptions);
+                bean.kafkaProducerMessage = monitor.kafkaProducerMessage;
+                bean.gamedigGivenPortOnly = monitor.gamedigGivenPortOnly;

                bean.validate();

                await R.store(bean);

+                if (removeGroupChildren) {
+                    await Monitor.unlinkAllChildren(monitor.id);
+                }
+
                await updateMonitorNotification(bean.id, monitor.notificationIDList);

-                if (bean.active) {
+                if (bean.isActive()) {
                    await restartMonitor(socket.userID, bean.id);
                }

@@ -879,11 +939,20 @@ let needSetup = false;
                    delete server.monitorList[monitorID];
                }

+                const startTime = Date.now();
+
                await R.exec("DELETE FROM monitor WHERE id = ? AND user_id = ? ", [
                    monitorID,
                    socket.userID,
                ]);

+                // Fix #2880
+                apicache.clear();
+
+                const endTime = Date.now();
+
+                log.info("DB", `Delete Monitor completed in : ${endTime - startTime} ms`);
+
                callback({
                    ok: true,
                    msg: "Deleted Successfully.",
@@ -1127,6 +1196,8 @@ let needSetup = false;
                    await doubleCheckPassword(socket, currentPassword);
                }

+                const previousChromeExecutable = await Settings.get("chromeExecutable");
+
                await setSettings("general", data);
                server.entryPage = data.entryPage;

@@ -1137,6 +1208,12 @@ let needSetup = false;
                    await server.setTimezone(data.serverTimezone);
                }

+                // If Chrome Executable is changed, need to reset the browser
+                if (previousChromeExecutable !== data.chromeExecutable) {
+                    log.info("settings", "Chrome executable is changed. Resetting Chrome...");
+                    await resetChrome();
+                }
+
                callback({
                    ok: true,
                    msg: "Saved"
@@ -1306,6 +1383,7 @@ let needSetup = false;

                            // Define default values
                            let retryInterval = 0;
+                            let timeout = monitorListData[i].timeout || (monitorListData[i].interval * 0.8); // fallback to old value

                            /*
                            Only replace the default value with the backup file data for the specific version, where it appears the first time
@@ -1331,6 +1409,7 @@ let needSetup = false;
                                basic_auth_pass: monitorListData[i].basic_auth_pass,
                                authWorkstation: monitorListData[i].authWorkstation,
                                authDomain: monitorListData[i].authDomain,
+                                timeout,
                                interval: monitorListData[i].interval,
                                retryInterval: retryInterval,
                                resendInterval: monitorListData[i].resendInterval || 0,
@@ -1338,13 +1417,14 @@ let needSetup = false;
                                maxretries: monitorListData[i].maxretries,
                                port: monitorListData[i].port,
                                keyword: monitorListData[i].keyword,
+                                invertKeyword: monitorListData[i].invertKeyword,
                                ignoreTls: monitorListData[i].ignoreTls,
                                upsideDown: monitorListData[i].upsideDown,
                                maxredirects: monitorListData[i].maxredirects,
                                accepted_statuscodes: monitorListData[i].accepted_statuscodes,
                                dns_resolve_type: monitorListData[i].dns_resolve_type,
                                dns_resolve_server: monitorListData[i].dns_resolve_server,
-                                notificationIDList: {},
+                                notificationIDList: monitorListData[i].notificationIDList,
                                proxy_id: monitorListData[i].proxy_id || null,
                            };

@@ -1506,7 +1586,6 @@ let needSetup = false;
        maintenanceSocketHandler(socket);
        apiKeySocketHandler(socket);
        generalSocketHandler(socket, server);
-        pluginsHandler(socket, server);

        log.debug("server", "added all socket handlers");

@@ -1532,6 +1611,8 @@ let needSetup = false;
        await shutdownFunction();
    });

+    server.start();
+
    server.httpServer.listen(port, hostname, () => {
        if (hostname) {
            log.info("server", `Listening on ${hostname}:${port}`);
@@ -1550,7 +1631,7 @@ let needSetup = false;
        }
    });

-    initBackgroundJobs(args);
+    await initBackgroundJobs();

    // Start cloudflared at the end if configured
    await cloudflaredAutoStart(cloudflaredToken);
@@ -1609,6 +1690,7 @@ async function afterLogin(socket, user) {
    socket.join(user.id);

    let monitorList = await server.sendMonitorList(socket);
+    sendInfo(socket);
    server.sendMaintenanceList(socket);
    sendNotificationList(socket);
    sendProxyList(socket);
@@ -1676,7 +1758,7 @@ async function initDatabase(testMode = false) {
        needSetup = true;
    }

-    jwtSecret = jwtSecretBean.value;
+    server.jwtSecret = jwtSecretBean.value;
 }

 /**
--- a/server/socket-handlers/general-socket-handler.js
+++ b/server/socket-handlers/general-socket-handler.js
@@ -3,6 +3,7 @@ const { Settings } = require("../settings");
 const { sendInfo } = require("../client");
 const { checkLogin } = require("../util-server");
 const GameResolver = require("gamedig/lib/GameResolver");
+const { testChrome } = require("../monitor-types/real-browser-monitor-type");

 let gameResolver = new GameResolver();
 let gameList = null;
@@ -47,4 +48,18 @@ module.exports.generalSocketHandler = (socket, server) => {
        });
    });

+    socket.on("testChrome", (executable, callback) => {
+        // Just noticed that await call could block the whole socket.io server!!! Use pure promise instead.
+        testChrome(executable).then((version) => {
+            callback({
+                ok: true,
+                msg: "Found Chromium/Chrome. Version: " + version,
+            });
+        }).catch((e) => {
+            callback({
+                ok: false,
+                msg: e.message,
+            });
+        });
+    });
 };
--- a/server/socket-handlers/maintenance-socket-handler.js
+++ b/server/socket-handlers/maintenance-socket-handler.js
@@ -5,7 +5,6 @@ const apicache = require("../modules/apicache");
 const { UptimeKumaServer } = require("../uptime-kuma-server");
 const Maintenance = require("../model/maintenance");
 const server = UptimeKumaServer.getInstance();
-const MaintenanceTimeslot = require("../model/maintenance_timeslot");

 /**
 * Handlers for Maintenance
@@ -19,10 +18,12 @@ module.exports.maintenanceSocketHandler = (socket) => {

            log.debug("maintenance", maintenance);

-            let bean = Maintenance.jsonToBean(R.dispense("maintenance"), maintenance);
+            let bean = await Maintenance.jsonToBean(R.dispense("maintenance"), maintenance);
            bean.user_id = socket.userID;
            let maintenanceID = await R.store(bean);
-            await MaintenanceTimeslot.generateTimeslot(bean);
+
+            server.maintenanceList[maintenanceID] = bean;
+            await bean.run(true);

            await server.sendMaintenanceList(socket);

@@ -45,17 +46,15 @@ module.exports.maintenanceSocketHandler = (socket) => {
        try {
            checkLogin(socket);

-            let bean = await R.findOne("maintenance", " id = ? ", [ maintenance.id ]);
+            let bean = server.getMaintenance(maintenance.id);

            if (bean.user_id !== socket.userID) {
                throw new Error("Permission denied.");
            }

-            Maintenance.jsonToBean(bean, maintenance);
-
+            await Maintenance.jsonToBean(bean, maintenance);
            await R.store(bean);
-            await MaintenanceTimeslot.generateTimeslot(bean, null, true);
-
+            await bean.run(true);
            await server.sendMaintenanceList(socket);

            callback({
@@ -187,7 +186,7 @@ module.exports.maintenanceSocketHandler = (socket) => {

            log.debug("maintenance", `Get Monitors for Maintenance: ${maintenanceID} User ID: ${socket.userID}`);

-            let monitors = await R.getAll("SELECT monitor.id, monitor.name FROM monitor_maintenance mm JOIN monitor ON mm.monitor_id = monitor.id WHERE mm.maintenance_id = ? ", [
+            let monitors = await R.getAll("SELECT monitor.id FROM monitor_maintenance mm JOIN monitor ON mm.monitor_id = monitor.id WHERE mm.maintenance_id = ? ", [
                maintenanceID,
            ]);

@@ -236,6 +235,7 @@ module.exports.maintenanceSocketHandler = (socket) => {
            log.debug("maintenance", `Delete Maintenance: ${maintenanceID} User ID: ${socket.userID}`);

            if (maintenanceID in server.maintenanceList) {
+                server.maintenanceList[maintenanceID].stop();
                delete server.maintenanceList[maintenanceID];
            }

@@ -267,9 +267,15 @@ module.exports.maintenanceSocketHandler = (socket) => {

            log.debug("maintenance", `Pause Maintenance: ${maintenanceID} User ID: ${socket.userID}`);

-            await R.exec("UPDATE maintenance SET active = 0 WHERE id = ? ", [
-                maintenanceID,
-            ]);
+            let maintenance = server.getMaintenance(maintenanceID);
+
+            if (!maintenance) {
+                throw new Error("Maintenance not found");
+            }
+
+            maintenance.active = false;
+            await R.store(maintenance);
+            maintenance.stop();

            apicache.clear();

@@ -294,9 +300,15 @@ module.exports.maintenanceSocketHandler = (socket) => {

            log.debug("maintenance", `Resume Maintenance: ${maintenanceID} User ID: ${socket.userID}`);

-            await R.exec("UPDATE maintenance SET active = 1 WHERE id = ? ", [
-                maintenanceID,
-            ]);
+            let maintenance = server.getMaintenance(maintenanceID);
+
+            if (!maintenance) {
+                throw new Error("Maintenance not found");
+            }
+
+            maintenance.active = true;
+            await R.store(maintenance);
+            await maintenance.run();

            apicache.clear();

--- a/server/socket-handlers/plugins-handler.js
+++ b/server/socket-handlers/plugins-handler.js
@@ -1,69 +0,0 @@
-const { checkLogin } = require("../util-server");
-const { PluginsManager } = require("../plugins-manager");
-const { log } = require("../../src/util.js");
-
-/**
- * Handlers for plugins
- * @param {Socket} socket Socket.io instance
- * @param {UptimeKumaServer} server
- */
-module.exports.pluginsHandler = (socket, server) => {
-
-    const pluginManager = server.getPluginManager();
-
-    // Get Plugin List
-    socket.on("getPluginList", async (callback) => {
-        try {
-            checkLogin(socket);
-
-            log.debug("plugin", "PluginManager.disable: " + PluginsManager.disable);
-
-            if (PluginsManager.disable) {
-                throw new Error("Plugin Disabled: In order to enable plugin feature, you need to use the default data directory: ./data/");
-            }
-
-            let pluginList = await pluginManager.fetchPluginList();
-            callback({
-                ok: true,
-                pluginList,
-            });
-        } catch (error) {
-            log.warn("plugin", "Error: " + error.message);
-            callback({
-                ok: false,
-                msg: error.message,
-            });
-        }
-    });
-
-    socket.on("installPlugin", async (repoURL, name, callback) => {
-        try {
-            checkLogin(socket);
-            pluginManager.downloadPlugin(repoURL, name);
-            await pluginManager.loadPlugin(name);
-            callback({
-                ok: true,
-            });
-        } catch (error) {
-            callback({
-                ok: false,
-                msg: error.message,
-            });
-        }
-    });
-
-    socket.on("uninstallPlugin", async (name, callback) => {
-        try {
-            checkLogin(socket);
-            await pluginManager.removePlugin(name);
-            callback({
-                ok: true,
-            });
-        } catch (error) {
-            callback({
-                ok: false,
-                msg: error.message,
-            });
-        }
-    });
-};
--- a/server/socket-handlers/status-page-socket-handler.js
+++ b/server/socket-handlers/status-page-socket-handler.js
@@ -162,6 +162,7 @@ module.exports.statusPageSocketHandler = (socket) => {
            statusPage.footer_text = config.footerText;
            statusPage.custom_css = config.customCSS;
            statusPage.show_powered_by = config.showPoweredBy;
+            statusPage.show_certificate_expiry = config.showCertificateExpiry;
            statusPage.modified_date = R.isoDateTime();
            statusPage.google_analytics_tag_id = config.googleAnalyticsId;

@@ -276,7 +277,7 @@ module.exports.statusPageSocketHandler = (socket) => {
            let statusPage = R.dispense("status_page");
            statusPage.slug = slug;
            statusPage.title = title;
-            statusPage.theme = "light";
+            statusPage.theme = "auto";
            statusPage.icon = "";
            await R.store(statusPage);

--- a/server/uptime-kuma-server.js
+++ b/server/uptime-kuma-server.js
@@ -10,8 +10,9 @@ const util = require("util");
 const { CacheableDnsHttpAgent } = require("./cacheable-dns-http-agent");
 const { Settings } = require("./settings");
 const dayjs = require("dayjs");
-const { PluginsManager } = require("./plugins-manager");
-// DO NOT IMPORT HERE IF THE MODULES USED `UptimeKumaServer.getInstance()`
+const childProcess = require("child_process");
+const path = require("path");
+// DO NOT IMPORT HERE IF THE MODULES USED `UptimeKumaServer.getInstance()`, put at the bottom of this file instead.

 /**
 * `module.exports` (alias: `server`) should be inside this class, in order to avoid circular dependency issue.
@@ -47,14 +48,6 @@ class UptimeKumaServer {
     */
    indexHTML = "";

-    generateMaintenanceTimeslotsInterval = undefined;
-
-    /**
-     * Plugins Manager
-     * @type {PluginsManager}
-     */
-    pluginsManager = null;
-
    /**
     *
     * @type {{}}
@@ -63,6 +56,12 @@ class UptimeKumaServer {

    };

+    /**
+     * Use for decode the auth object
+     * @type {null}
+     */
+    jwtSecret = null;
+
    static getInstance(args) {
        if (UptimeKumaServer.instance == null) {
            UptimeKumaServer.instance = new UptimeKumaServer(args);
@@ -74,6 +73,7 @@ class UptimeKumaServer {
        // SSL
        const sslKey = args["ssl-key"] || process.env.UPTIME_KUMA_SSL_KEY || process.env.SSL_KEY || undefined;
        const sslCert = args["ssl-cert"] || process.env.UPTIME_KUMA_SSL_CERT || process.env.SSL_CERT || undefined;
+        const sslKeyPassphrase = args["ssl-key-passphrase"] || process.env.UPTIME_KUMA_SSL_KEY_PASSPHRASE || process.env.SSL_KEY_PASSPHRASE || undefined;

        log.info("server", "Creating express and socket.io instance");
        this.app = express();
@@ -81,7 +81,8 @@ class UptimeKumaServer {
            log.info("server", "Server Type: HTTPS");
            this.httpServer = https.createServer({
                key: fs.readFileSync(sslKey),
-                cert: fs.readFileSync(sslCert)
+                cert: fs.readFileSync(sslCert),
+                passphrase: sslKeyPassphrase,
            }, this.app);
        } else {
            log.info("server", "Server Type: HTTP");
@@ -98,11 +99,18 @@ class UptimeKumaServer {
            }
        }

+        // Set Monitor Types
+        UptimeKumaServer.monitorTypeList["real-browser"] = new RealBrowserMonitorType();
+        UptimeKumaServer.monitorTypeList["tailscale-ping"] = new TailscalePing();
+
        this.io = new Server(this.httpServer);
    }

    /** Initialise app after the database has been set up */
    async initAfterDatabaseReady() {
+        // Static
+        this.app.use("/screenshots", express.static(Database.screenshotDir));
+
        await CacheableDnsHttpAgent.update();

        process.env.TZ = await this.getTimezone();
@@ -110,8 +118,7 @@ class UptimeKumaServer {
        log.debug("DEBUG", "Timezone: " + process.env.TZ);
        log.debug("DEBUG", "Current Time: " + dayjs.tz().format());

-        await this.generateMaintenanceTimeslots();
-        this.generateMaintenanceTimeslotsInterval = setInterval(this.generateMaintenanceTimeslots, 60 * 1000);
+        await this.loadMaintenanceList();
    }

    /**
@@ -173,16 +180,33 @@ class UptimeKumaServer {
     */
    async getMaintenanceJSONList(userID) {
        let result = {};
+        for (let maintenanceID in this.maintenanceList) {
+            result[maintenanceID] = await this.maintenanceList[maintenanceID].toJSON();
+        }
+        return result;
+    }
+
+    /**
+     * Load maintenance list and run
+     * @param userID
+     * @returns {Promise<void>}
+     */
+    async loadMaintenanceList(userID) {
+        let maintenanceList = await R.findAll("maintenance", " ORDER BY end_date DESC, title", [

-        let maintenanceList = await R.find("maintenance", " user_id = ? ORDER BY end_date DESC, title", [
-            userID,
        ]);

        for (let maintenance of maintenanceList) {
-            result[maintenance.id] = await maintenance.toJSON();
+            this.maintenanceList[maintenance.id] = maintenance;
+            maintenance.run(this);
        }
+    }

-        return result;
+    getMaintenance(maintenanceID) {
+        if (this.maintenanceList[maintenanceID]) {
+            return this.maintenanceList[maintenanceID];
+        }
+        return null;
    }

    /**
@@ -191,7 +215,7 @@ class UptimeKumaServer {
     * @param {boolean} outputToConsole Should the error also be output to console?
     */
    static errorLog(error, outputToConsole = true) {
-        const errorLogStream = fs.createWriteStream(Database.dataDir + "/error.log", {
+        const errorLogStream = fs.createWriteStream(path.join(Database.dataDir, "/error.log"), {
            flags: "a"
        });

@@ -228,9 +252,9 @@ class UptimeKumaServer {

            return (typeof forwardedFor === "string" ? forwardedFor.split(",")[0].trim() : null)
                || socket.client.conn.request.headers["x-real-ip"]
-                || clientIP.replace(/^.*:/, "");
+                || clientIP.replace(/^::ffff:/, "");
        } else {
-            return clientIP.replace(/^.*:/, "");
+            return clientIP.replace(/^::ffff:/, "");
        }
    }

@@ -238,16 +262,46 @@ class UptimeKumaServer {
     * Attempt to get the current server timezone
     * If this fails, fall back to environment variables and then make a
     * guess.
-     * @returns {string}
+     * @returns {Promise<string>}
     */
    async getTimezone() {
+        // From process.env.TZ
+        try {
+            if (process.env.TZ) {
+                this.checkTimezone(process.env.TZ);
+                return process.env.TZ;
+            }
+        } catch (e) {
+            log.warn("timezone", e.message + " in process.env.TZ");
+        }
+
        let timezone = await Settings.get("serverTimezone");
-        if (timezone) {
-            return timezone;
-        } else if (process.env.TZ) {
-            return process.env.TZ;
-        } else {
-            return dayjs.tz.guess();
+
+        // From Settings
+        try {
+            log.debug("timezone", "Using timezone from settings: " + timezone);
+            if (timezone) {
+                this.checkTimezone(timezone);
+                return timezone;
+            }
+        } catch (e) {
+            log.warn("timezone", e.message + " in settings");
+        }
+
+        // Guess
+        try {
+            let guess = dayjs.tz.guess();
+            log.debug("timezone", "Guessing timezone: " + guess);
+            if (guess) {
+                this.checkTimezone(guess);
+                return guess;
+            } else {
+                return "UTC";
+            }
+        } catch (e) {
+            // Guess failed, fall back to UTC
+            log.debug("timezone", "Guessed an invalid timezone. Use UTC as fallback");
+            return "UTC";
        }
    }

@@ -259,80 +313,79 @@ class UptimeKumaServer {
        return dayjs().format("Z");
    }

+    /**
+     * Throw an error if the timezone is invalid
+     * @param timezone
+     */
+    checkTimezone(timezone) {
+        try {
+            dayjs.utc("2013-11-18 11:55").tz(timezone).format();
+        } catch (e) {
+            throw new Error("Invalid timezone:" + timezone);
+        }
+    }
+
    /**
     * Set the current server timezone and environment variables
     * @param {string} timezone
     */
    async setTimezone(timezone) {
+        this.checkTimezone(timezone);
        await Settings.set("serverTimezone", timezone, "general");
        process.env.TZ = timezone;
        dayjs.tz.setDefault(timezone);
    }

-    /** Load the timeslots for maintenance */
-    async generateMaintenanceTimeslots() {
-
-        let list = await R.find("maintenance_timeslot", " generated_next = 0 AND start_date <= DATETIME('now') ");
-
-        for (let maintenanceTimeslot of list) {
-            let maintenance = await maintenanceTimeslot.maintenance;
-            await MaintenanceTimeslot.generateTimeslot(maintenance, maintenanceTimeslot.end_date, false);
-            maintenanceTimeslot.generated_next = true;
-            await R.store(maintenanceTimeslot);
-        }
-
+    /**
+     * TODO: Listen logic should be moved to here
+     * @returns {Promise<void>}
+     */
+    async start() {
+        this.startServices();
    }

-    /** Stop the server */
+    /**
+     * Stop the server
+     * @returns {Promise<void>}
+     */
    async stop() {
-        clearTimeout(this.generateMaintenanceTimeslotsInterval);
-    }
-
-    loadPlugins() {
-        this.pluginsManager = new PluginsManager(this);
+        this.stopServices();
    }

    /**
-     *
-     * @returns {PluginsManager}
+     * Start all system services (e.g. nscd)
+     * For now, only used in Docker
     */
-    getPluginManager() {
-        return this.pluginsManager;
-    }
-
-    /**
-     *
-     * @param {MonitorType} monitorType
-     */
-    addMonitorType(monitorType) {
-        if (monitorType instanceof MonitorType && monitorType.name) {
-            if (monitorType.name in UptimeKumaServer.monitorTypeList) {
-                log.error("", "Conflict Monitor Type name");
+    startServices() {
+        if (process.env.UPTIME_KUMA_IS_CONTAINER) {
+            try {
+                log.info("services", "Starting nscd");
+                childProcess.execSync("sudo service nscd start", { stdio: "pipe" });
+            } catch (e) {
+                log.info("services", "Failed to start nscd");
            }
-            UptimeKumaServer.monitorTypeList[monitorType.name] = monitorType;
-        } else {
-            log.error("", "Invalid Monitor Type: " + monitorType.name);
        }
    }

    /**
-     *
-     * @param {MonitorType} monitorType
+     * Stop all system services
     */
-    removeMonitorType(monitorType) {
-        if (UptimeKumaServer.monitorTypeList[monitorType.name] === monitorType) {
-            delete UptimeKumaServer.monitorTypeList[monitorType.name];
-        } else {
-            log.error("", "Remove MonitorType failed: " + monitorType.name);
+    stopServices() {
+        if (process.env.UPTIME_KUMA_IS_CONTAINER) {
+            try {
+                log.info("services", "Stopping nscd");
+                childProcess.execSync("sudo service nscd stop");
+            } catch (e) {
+                log.info("services", "Failed to stop nscd");
+            }
        }
    }
-
 }

 module.exports = {
    UptimeKumaServer
 };

-// Must be at the end
-const MaintenanceTimeslot = require("./model/maintenance_timeslot");
-const { MonitorType } = require("./monitor-types/monitor-type");
+// Must be at the end to avoid circular dependencies
+const { RealBrowserMonitorType } = require("./monitor-types/real-browser-monitor-type");
+const { TailscalePing } = require("./monitor-types/tailscale-ping");
--- a/server/util-server.js
+++ b/server/util-server.js
@@ -21,6 +21,8 @@ const grpc = require("@grpc/grpc-js");
 const protojs = require("protobufjs");
 const radiusClient = require("node-radius-client");
 const redis = require("redis");
+const oidc = require("openid-client");
+
 const {
    dictionaries: {
        rfc2865: { file, attributes },
@@ -28,8 +30,11 @@ const {
 } = require("node-radius-utils");
 const dayjs = require("dayjs");

-const isWindows = process.platform === /^win/.test(process.platform);
+// SASLOptions used in JSDoc
+// eslint-disable-next-line no-unused-vars
+const { Kafka, SASLOptions } = require("kafkajs");

+const isWindows = process.platform === /^win/.test(process.platform);
 /**
 * Init or reset JWT secret
 * @returns {Promise<Bean>}
@@ -49,6 +54,43 @@ exports.initJWTSecret = async () => {
    return jwtSecretBean;
 };

+/**
+ * Decodes a jwt and returns the payload portion without verifying the jqt.
+ * @param {string} jwt The input jwt as a string
+ * @returns {Object} Decoded jwt payload object
+ */
+exports.decodeJwt = (jwt) => {
+    return JSON.parse(Buffer.from(jwt.split(".")[1], "base64").toString());
+};
+
+/**
+ * Gets a Access Token form a oidc/oauth2 provider
+ * @param {string} tokenEndpoint The token URI form the auth service provider
+ * @param {string} clientId The oidc/oauth application client id
+ * @param {string} clientSecret The oidc/oauth application client secret
+ * @param {string} scope The scope the for which the token should be issued for
+ * @param {string} authMethod The method on how to sent the credentials. Default client_secret_basic
+ * @returns {Promise<oidc.TokenSet>} TokenSet promise if the token request was successful
+ */
+exports.getOidcTokenClientCredentials = async (tokenEndpoint, clientId, clientSecret, scope, authMethod = "client_secret_basic") => {
+    const oauthProvider = new oidc.Issuer({ token_endpoint: tokenEndpoint });
+    let client = new oauthProvider.Client({
+        client_id: clientId,
+        client_secret: clientSecret,
+        token_endpoint_auth_method: authMethod
+    });
+
+    // Increase default timeout and clock tolerance
+    client[oidc.custom.http_options] = () => ({ timeout: 10000 });
+    client[oidc.custom.clock_tolerance] = 5;
+
+    let grantParams = { grant_type: "client_credentials" };
+    if (scope) {
+        grantParams.scope = scope;
+    }
+    return await client.grant(grantParams);
+};
+
 /**
 * Send TCP request to specified hostname and port
 * @param {string} hostname Hostname / address of machine
@@ -196,6 +238,94 @@ exports.mqttAsync = function (hostname, topic, okMessage, options = {}) {
    });
 };

+/**
+ * Monitor Kafka using Producer
+ * @param {string} topic Topic name to produce into
+ * @param {string} message Message to produce
+ * @param {Object} [options={interval = 20, allowAutoTopicCreation = false, ssl = false, clientId = "Uptime-Kuma"}]
+ * Kafka client options. Contains ssl, clientId, allowAutoTopicCreation and
+ * interval (interval defaults to 20, allowAutoTopicCreation defaults to false, clientId defaults to "Uptime-Kuma"
+ * and ssl defaults to false)
+ * @param {string[]} brokers List of kafka brokers to connect, host and port joined by ':'
+ * @param {SASLOptions} [saslOptions={}] Options for kafka client Authentication (SASL) (defaults to
+ * {})
+ * @returns {Promise<string>}
+ */
+exports.kafkaProducerAsync = function (brokers, topic, message, options = {}, saslOptions = {}) {
+    return new Promise((resolve, reject) => {
+        const { interval = 20, allowAutoTopicCreation = false, ssl = false, clientId = "Uptime-Kuma" } = options;
+
+        let connectedToKafka = false;
+
+        const timeoutID = setTimeout(() => {
+            log.debug("kafkaProducer", "KafkaProducer timeout triggered");
+            connectedToKafka = true;
+            reject(new Error("Timeout"));
+        }, interval * 1000 * 0.8);
+
+        if (saslOptions.mechanism === "None") {
+            saslOptions = undefined;
+        }
+
+        let client = new Kafka({
+            brokers: brokers,
+            clientId: clientId,
+            sasl: saslOptions,
+            retry: {
+                retries: 0,
+            },
+            ssl: ssl,
+        });
+
+        let producer = client.producer({
+            allowAutoTopicCreation: allowAutoTopicCreation,
+            retry: {
+                retries: 0,
+            }
+        });
+
+        producer.connect().then(
+            () => {
+                try {
+                    producer.send({
+                        topic: topic,
+                        messages: [{
+                            value: message,
+                        }],
+                    });
+                    connectedToKafka = true;
+                    clearTimeout(timeoutID);
+                    resolve("Message sent successfully");
+                } catch (e) {
+                    connectedToKafka = true;
+                    producer.disconnect();
+                    clearTimeout(timeoutID);
+                    reject(new Error("Error sending message: " + e.message));
+                }
+            }
+        ).catch(
+            (e) => {
+                connectedToKafka = true;
+                producer.disconnect();
+                clearTimeout(timeoutID);
+                reject(new Error("Error in producer connection: " + e.message));
+            }
+        );
+
+        producer.on("producer.network.request_timeout", (_) => {
+            clearTimeout(timeoutID);
+            reject(new Error("producer.network.request_timeout"));
+        });
+
+        producer.on("producer.disconnect", (_) => {
+            if (!connectedToKafka) {
+                clearTimeout(timeoutID);
+                reject(new Error("producer.disconnect"));
+            }
+        });
+    });
+};
+
 /**
 * Use NTLM Auth for a http request.
 * @param {Object} options The http request options
@@ -322,21 +452,33 @@ exports.postgresQuery = function (connectionString, query) {
 * Run a query on MySQL/MariaDB
 * @param {string} connectionString The database connection string
 * @param {string} query The query to validate the database with
- * @returns {Promise<(string[]|Object[]|Object)>}
+ * @returns {Promise<(string)>}
 */
 exports.mysqlQuery = function (connectionString, query) {
    return new Promise((resolve, reject) => {
        const connection = mysql.createConnection(connectionString);
-        connection.promise().query(query)
-            .then(res => {
-                resolve(res);
-            })
-            .catch(err => {
+
+        connection.on("error", (err) => {
+            reject(err);
+        });
+
+        connection.query(query, (err, res) => {
+            if (err) {
                reject(err);
-            })
-            .finally(() => {
+            } else {
+                if (Array.isArray(res)) {
+                    resolve("Rows: " + res.length);
+                } else {
+                    resolve("No Error, but the result is not an array. Type: " + typeof res);
+                }
+            }
+
+            try {
+                connection.end();
+            } catch (_) {
                connection.destroy();
-            });
+            }
+        });
    });
 };

@@ -366,6 +508,7 @@ exports.mongodbPing = async function (connectionString) {
 * @param {string} callingStationId ID of calling station
 * @param {string} secret Secret to use
 * @param {number} [port=1812] Port to contact radius server on
+ * @param {number} [timeout=2500] Timeout for connection to use
 * @returns {Promise<any>}
 */
 exports.radius = function (
@@ -376,10 +519,13 @@ exports.radius = function (
    callingStationId,
    secret,
    port = 1812,
+    timeout = 2500,
 ) {
    const client = new radiusClient({
        host: hostname,
        hostPort: port,
+        timeout: timeout,
+        retries: 1,
        dictionaries: [ file ],
    });

@@ -391,6 +537,12 @@ exports.radius = function (
            [ attributes.CALLING_STATION_ID, callingStationId ],
            [ attributes.CALLED_STATION_ID, calledStationId ],
        ],
+    }).catch((error) => {
+        if (error.response?.code) {
+            throw Error(error.response.code);
+        } else {
+            throw Error(error.message);
+        }
    });
 };

@@ -401,19 +553,28 @@ exports.radius = function (
 exports.redisPingAsync = function (dsn) {
    return new Promise((resolve, reject) => {
        const client = redis.createClient({
-            url: dsn,
+            url: dsn
        });
        client.on("error", (err) => {
+            if (client.isOpen) {
+                client.disconnect();
+            }
            reject(err);
        });
        client.connect().then(() => {
+            if (!client.isOpen) {
+                client.emit("error", new Error("connection isn't open"));
+            }
            client.ping().then((res, err) => {
+                if (client.isOpen) {
+                    client.disconnect();
+                }
                if (err) {
                    reject(err);
                } else {
                    resolve(res);
                }
-            });
+            }).catch(error => reject(error));
        });
    });
 };
@@ -509,12 +670,16 @@ const parseCertificateInfo = function (info) {

        // Move up the chain until loop is encountered
        if (link.issuerCertificate == null) {
+            link.certType = (i === 0) ? "self-signed" : "root CA";
            break;
        } else if (link.issuerCertificate.fingerprint in existingList) {
+            // a root CA certificate is typically "signed by itself"  (=> "self signed certificate") and thus the "issuerCertificate" is a reference to itself.
            log.debug("cert", `[Last] ${link.issuerCertificate.fingerprint}`);
+            link.certType = (i === 0) ? "self-signed" : "root CA";
            link.issuerCertificate = null;
            break;
        } else {
+            link.certType = (i === 0) ? "server" : "intermediate CA";
            link = link.issuerCertificate;
        }

@@ -555,7 +720,6 @@ exports.checkCertificate = function (res) {
 * @param {number} status The status code to check
 * @param {string[]} acceptedCodes An array of accepted status codes
 * @returns {boolean} True if status code within range, false otherwise
- * @throws {Error} Will throw an error if the provided status code is not a valid range string or code string
 */
 exports.checkStatusCode = function (status, acceptedCodes) {
    if (acceptedCodes == null || acceptedCodes.length === 0) {
@@ -563,6 +727,11 @@ exports.checkStatusCode = function (status, acceptedCodes) {
    }

    for (const codeRange of acceptedCodes) {
+        if (typeof codeRange !== "string") {
+            log.error("monitor", `Accepted status code not a string. ${codeRange} is of type ${typeof codeRange}`);
+            continue;
+        }
+
        const codeRangeSplit = codeRange.split("-").map(string => parseInt(string));
        if (codeRangeSplit.length === 1) {
            if (status === codeRangeSplit[0]) {
@@ -573,7 +742,8 @@ exports.checkStatusCode = function (status, acceptedCodes) {
                return true;
            }
        } else {
-            throw new Error("Invalid status code range");
+            log.error("monitor", `${codeRange} is not a valid status code range`);
+            continue;
        }
    }

@@ -882,3 +1052,13 @@ module.exports.grpcQuery = async (options) => {

    });
 };
+
+// For unit test, export functions
+if (process.env.TEST_BACKEND) {
+    module.exports.__test = {
+        parseCertificateInfo,
+    };
+    module.exports.__getPrivateFunction = (functionName) => {
+        return module.exports.__test[functionName];
+    };
+}
--- a/src/assets/app.scss
+++ b/src/assets/app.scss
@@ -111,6 +111,10 @@ optgroup {
    padding-right: 20px;
 }

+.btn-sm {
+    border-radius: 25px;
+}
+
 .btn-primary {
    color: white;

@@ -158,6 +162,26 @@ optgroup {
    background-color: #161B22;
 }

+.btn-outline-normal {
+    padding: 4px 10px;
+    border: 1px solid #ced4da;
+    border-radius: 25px;
+    background-color: transparent;
+
+    .dark & {
+        color: $dark-font-color;
+        border: 1px solid $dark-font-color2;
+    }
+
+    &.active {
+        background-color: $highlight-white;
+
+        .dark & {
+            background-color: $dark-font-color2;
+        }
+    }
+}
+
@media (max-width: 550px) {
    .table-shadow-box {
        padding: 10px !important;
@@ -266,6 +290,11 @@ optgroup {
        background-color: $dark-bg2;
    }

+    .form-select:disabled {
+        color: rgba($dark-font-color, 0.7);
+        background-color: $dark-bg;
+    }
+
    .form-control, .form-select {
        border-color: $dark-border-color;
    }
@@ -431,12 +460,11 @@ optgroup {
 .monitor-list {
    &.scrollbar {
        overflow-y: auto;
-        height: calc(100% - 65px);
    }

    @media (max-width: 770px) {
        &.scrollbar {
-            height: calc(100% - 40px);
+            height: calc(100% - 97px);
        }
    }

@@ -556,6 +584,31 @@ h5.settings-subheading::after {
    border-bottom: 1px solid $dark-border-color;
 }

+
+$shadow-box-padding: 20px;
+
+.shadow-box-with-fixed-bottom-bar {
+    padding-top: $shadow-box-padding;
+    padding-bottom: 0;
+    padding-right: $shadow-box-padding;
+    padding-left: $shadow-box-padding;
+}
+
+.fixed-bottom-bar {
+    position: sticky;
+    bottom: 0;
+    margin-left: -$shadow-box-padding;
+    margin-right: -$shadow-box-padding;
+    z-index: 100;
+    background-color: rgba(white, 0.2);
+    backdrop-filter: blur(2px);
+    border-radius: 0 0 10px 10px;
+
+    .dark & {
+        background-color: rgba($dark-header-bg, 0.9);
+    }
+}
+
 // Localization

@import "localization.scss";
--- a/src/assets/multiselect.scss
+++ b/src/assets/multiselect.scss
@@ -1,6 +1,12 @@
@import "vars.scss";
@import "node_modules/vue-multiselect/dist/vue-multiselect";

+.multiselect {
+    .dark & {
+        color: $dark-font-color;
+    }
+}
+
 .multiselect__tags {
    border-radius: 1.5rem;
    border: 1px solid #ced4da;
@@ -14,10 +20,12 @@

 .multiselect__option--highlight {
    background: $primary !important;
+    color: $dark-font-color2 !important;
 }

 .multiselect__option--highlight::after {
    background: $primary !important;
+    color: $dark-font-color2 !important;
 }

 .multiselect__tag {
@@ -61,6 +69,7 @@
    .multiselect__content-wrapper {
        background-color: $dark-bg2;
        border-color: $dark-border-color;
+        z-index: 150;
    }

    .multiselect--above .multiselect__content-wrapper {
--- a/src/components/APIKeyDialog.vue
+++ b/src/components/APIKeyDialog.vue
@@ -48,15 +48,14 @@
                                </div>
                            </div>
                        </div>
-
-                        <div class="modal-footer">
-                            <button
-                                id="monitor-submit-btn" class="btn btn-primary" type="submit"
-                                :disabled="processing"
-                            >
-                                {{ $t("Generate") }}
-                            </button>
-                        </div>
+                    </div>
+                    <div class="modal-footer">
+                        <button
+                            id="monitor-submit-btn" class="btn btn-primary" type="submit"
+                            :disabled="processing"
+                        >
+                            {{ $t("Generate") }}
+                        </button>
                    </div>
                </div>
            </div>
@@ -159,6 +158,16 @@ export default {
                }
            });
        },
+
+        /** Clear Form inputs */
+        clearForm() {
+            this.key = {
+                name: "",
+                expires: this.minDate,
+                active: 1,
+            };
+            this.noExpire = false;
+        },
    }
 };
 </script>
--- a/src/components/ActionSelect.vue
+++ b/src/components/ActionSelect.vue
@@ -0,0 +1,70 @@
+<template>
+    <div class="input-group mb-3">
+        <select ref="select" v-model="model" class="form-select" :disabled="disabled">
+            <option v-for="option in options" :key="option" :value="option.value">{{ option.label }}</option>
+        </select>
+        <a class="btn btn-outline-primary" @click="action()">
+            <font-awesome-icon :icon="icon" />
+        </a>
+    </div>
+</template>
+
+<script>
+/**
+ * Generic select field with a customizable action on the right.
+ * Action is passed in as a function.
+ */
+export default {
+    props: {
+        options: {
+            type: Array,
+            default: () => [],
+        },
+        /**
+         * The value of the select field.
+         */
+        modelValue: {
+            type: Number,
+            default: null,
+        },
+        /**
+         * Whether the select field is enabled / disabled.
+         */
+        disabled: {
+            type: Boolean,
+            default: false
+        },
+        /**
+         * The icon displayed in the right button of the select field.
+         * Accepts a Font Awesome icon string identifier.
+         * @example "plus"
+         */
+        icon: {
+            type: String,
+            required: true,
+        },
+        /**
+         * The action to be performed when the button is clicked.
+         * Action is passed in as a function.
+         */
+        action: {
+            type: Function,
+            default: () => {},
+        }
+    },
+    emits: [ "update:modelValue" ],
+    computed: {
+        /**
+         * Send value update to parent on change.
+         */
+        model: {
+            get() {
+                return this.modelValue;
+            },
+            set(value) {
+                this.$emit("update:modelValue", value);
+            }
+        }
+    },
+};
+</script>
--- a/src/components/BadgeGeneratorDialog.vue
+++ b/src/components/BadgeGeneratorDialog.vue
@@ -0,0 +1,305 @@
+<template>
+    <div ref="BadgeGeneratorModal" class="modal fade" tabindex="-1" data-bs-backdrop="static">
+        <div class="modal-dialog">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h5 class="modal-title">
+                        {{ $t("Badge Generator", [monitor.name]) }}
+                    </h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close" />
+                </div>
+                <div class="modal-body">
+                    <div class="mb-3">
+                        <label for="type" class="form-label">{{ $t("Badge Type") }}</label>
+                        <select id="type" v-model="badge.type" class="form-select">
+                            <option value="status">status</option>
+                            <option value="uptime">uptime</option>
+                            <option value="ping">ping</option>
+                            <option value="avg-response">avg-response</option>
+                            <option value="cert-exp">cert-exp</option>
+                            <option value="response">response</option>
+                        </select>
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('duration') " class="mb-3">
+                        <label for="duration" class="form-label">{{ $t("Badge Duration (in hours)") }}</label>
+                        <input id="duration" v-model="badge.duration" type="number" min="0" placeholder="24" class="form-control">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('label') " class="mb-3">
+                        <label for="label" class="form-label">{{ $t("Badge Label") }}</label>
+                        <input id="label" v-model="badge.label" type="text" class="form-control">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('prefix') " class="mb-3">
+                        <label for="prefix" class="form-label">{{ $t("Badge Prefix") }}</label>
+                        <input id="prefix" v-model="badge.prefix" type="text" class="form-control">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('suffix') " class="mb-3">
+                        <label for="suffix" class="form-label">{{ $t("Badge Suffix") }}</label>
+                        <input id="suffix" v-model="badge.suffix" type="text" placeholder="%" class="form-control">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('labelColor') " class="mb-3">
+                        <label for="labelColor" class="form-label">{{ $t("Badge Label Color") }}</label>
+                        <input id="labelColor" v-model="badge.labelColor" type="text" placeholder="#555" class="form-control">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('color') " class="mb-3">
+                        <label for="color" class="form-label">{{ $t("Badge Color") }}</label>
+                        <input id="color" v-model="badge.color" type="text" :placeholder="badgeConstants.defaultUpColor" class="form-control">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('labelPrefix') " class="mb-3">
+                        <label for="labelPrefix" class="form-label">{{ $t("Badge Label Prefix") }}</label>
+                        <input id="labelPrefix" v-model="badge.labelPrefix" type="text" class="form-control">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('labelSuffix') " class="mb-3">
+                        <label for="labelSuffix" class="form-label">{{ $t("Badge Label Suffix") }}</label>
+                        <input id="labelSuffix" v-model="badge.labelSuffix" type="text" placeholder="h" class="form-control">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('upColor') " class="mb-3">
+                        <label for="upColor" class="form-label">{{ $t("Badge Up Color") }}</label>
+                        <input id="upColor" v-model="badge.upColor" type="text" class="form-control" :placeholder="badgeConstants.defaultUpColor">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('downColor') " class="mb-3">
+                        <label for="downColor" class="form-label">{{ $t("Badge Down Color") }}</label>
+                        <input id="downColor" v-model="badge.downColor" type="text" class="form-control" :placeholder="badgeConstants.defaultDownColor">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('pendingColor') " class="mb-3">
+                        <label for="pendingColor" class="form-label">{{ $t("Badge Pending Color") }}</label>
+                        <input id="pendingColor" v-model="badge.pendingColor" type="text" class="form-control" :placeholder="badgeConstants.defaultPendingColor">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('maintenanceColor') " class="mb-3">
+                        <label for="maintenanceColor" class="form-label">{{ $t("Badge Maintenance Color") }}</label>
+                        <input id="maintenanceColor" v-model="badge.maintenanceColor" type="text" class="form-control" :placeholder="badgeConstants.defaultMaintenanceColor">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('warnColor') " class="mb-3">
+                        <label for="warnColor" class="form-label">{{ $t("Badge Warn Color") }}</label>
+                        <input id="warnColor" v-model="badge.warnColor" type="text" class="form-control" :placeholder="badgeConstants.defaultMaintenanceColor">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('warnDays') " class="mb-3">
+                        <label for="warnDays" class="form-label">{{ $t("Badge Warn Days") }}</label>
+                        <input id="warnDays" v-model="badge.warnDays" type="number" min="0" class="form-control" :placeholder="badgeConstants.defaultCertExpireWarnDays">
+                    </div>
+
+                    <div v-if=" (parameters[badge.type || 'null'] || [] ).includes('downDays') " class="mb-3">
+                        <label for="downDays" class="form-label">{{ $t("Badge Down Days") }}</label>
+                        <input id="downDays" v-model="badge.downDays" type="number" min="0" class="form-control" :placeholder="badgeConstants.defaultCertExpireDownDays">
+                    </div>
+
+                    <div class="mb-3">
+                        <label for="style" class="form-label">{{ $t("Badge Style") }}</label>
+                        <select id="style" v-model="badge.style" class="form-select">
+                            <option value="plastic">plastic</option>
+                            <option value="flat">flat</option>
+                            <option value="flat-square">flat-square</option>
+                            <option value="for-the-badge">for-the-badge</option>
+                            <option value="social">social</option>
+                        </select>
+                    </div>
+
+                    <div class="mb-3">
+                        <label for="value" class="form-label">{{ $t("Badge value (For Testing only.)") }}</label>
+                        <input id="value" v-model="badge.value" type="text" class="form-control">
+                    </div>
+
+                    <div class="mb-3 pt-3 d-flex justify-content-center">
+                        <img :src="badgeURL" :alt="$t('Badge Preview')">
+                    </div>
+
+                    <div class="my-3">
+                        <label for="badge-url" class="form-label">{{ $t("Badge URL") }}</label>
+                        <CopyableInput id="badge-url" v-model="badgeURL" type="url" disabled="disabled" />
+                    </div>
+                </div>
+
+                <div class="modal-footer">
+                    <button type="submit" class="btn btn-danger" data-bs-dismiss="modal">
+                        {{ $t("Close") }}
+                    </button>
+                </div>
+            </div>
+        </div>
+    </div>
+</template>
+
+<script lang="ts">
+import { Modal } from "bootstrap";
+import CopyableInput from "./CopyableInput.vue";
+import { default as serverConfig } from "../../server/config.js";
+
+export default {
+    components: {
+        CopyableInput
+    },
+    props: {},
+    emits: [],
+    data() {
+        return {
+            model: null,
+            processing: false,
+            monitor: {
+                id: null,
+                name: null,
+            },
+            badge: {
+                type: "status",
+                duration: null,
+                label: null,
+                prefix: null,
+                suffix: null,
+                labelColor: null,
+                color: null,
+                labelPrefix: null,
+                labelSuffix: null,
+                upColor: null,
+                downColor: null,
+                pendingColor: null,
+                maintenanceColor: null,
+                warnColor: null,
+                warnDays: null,
+                downDays: null,
+                style: "flat",
+                value: null,
+            },
+            parameters: {
+                status: [
+                    "upLabel",
+                    "downLabel",
+                    "pendingLabel",
+                    "maintenanceLabel",
+                    "upColor",
+                    "downColor",
+                    "pendingColor",
+                    "maintenanceColor",
+                ],
+                uptime: [
+                    "duration",
+                    "labelPrefix",
+                    "labelSuffix",
+                    "prefix",
+                    "suffix",
+                    "color",
+                    "labelColor",
+                ],
+                ping: [
+                    "duration",
+                    "labelPrefix",
+                    "labelSuffix",
+                    "prefix",
+                    "suffix",
+                    "color",
+                    "labelColor",
+                ],
+                "avg-response": [
+                    "duration",
+                    "labelPrefix",
+                    "labelSuffix",
+                    "prefix",
+                    "suffix",
+                    "color",
+                    "labelColor",
+                ],
+                "cert-exp": [
+                    "labelPrefix",
+                    "labelSuffix",
+                    "prefix",
+                    "suffix",
+                    "upColor",
+                    "warnColor",
+                    "downColor",
+                    "warnDays",
+                    "downDays",
+                    "labelColor",
+                ],
+                response: [
+                    "labelPrefix",
+                    "labelSuffix",
+                    "prefix",
+                    "suffix",
+                    "color",
+                    "labelColor",
+                ],
+            },
+            badgeConstants: serverConfig.badgeConstants,
+        };
+    },
+
+    computed: {
+        badgeURL() {
+            if (!this.monitor.id || !this.badge.type) {
+                return;
+            }
+            let badgeURL = this.$root.baseURL + "/api/badge/" + this.monitor.id + "/" + this.badge.type;
+
+            let parameterList = {};
+
+            for (let parameter of this.parameters[this.badge.type] || []) {
+                if (parameter === "duration" && this.badge.duration) {
+                    badgeURL += "/" + this.badge.duration;
+                    continue;
+                }
+
+                if (this.badge[parameter]) {
+                    parameterList[parameter] = this.badge[parameter];
+                }
+            }
+
+            for (let parameter of [ "label", "style", "value" ]) {
+                if (parameter === "style" && this.badge.style === "flat") {
+                    continue;
+                }
+
+                if (this.badge[parameter]) {
+                    parameterList[parameter] = this.badge[parameter];
+                }
+            }
+
+            if (Object.keys(parameterList).length > 0) {
+                return badgeURL + "?" + new URLSearchParams(parameterList);
+            }
+
+            return badgeURL;
+        },
+    },
+
+    mounted() {
+        this.BadgeGeneratorModal = new Modal(this.$refs.BadgeGeneratorModal);
+    },
+
+    methods: {
+        /**
+         * Setting monitor
+         * @param {number} monitorId    ID of monitor
+         * @param {string} monitorName  Name of monitor
+         */
+        show(monitorId, monitorName) {
+            this.monitor = {
+                id: monitorId,
+                name: monitorName,
+            };
+
+            this.BadgeGeneratorModal.show();
+        },
+    },
+};
+</script>
+
+<style lang="scss" scoped>
+@import "../assets/vars.scss";
+
+.dark {
+    .modal-dialog .form-text, .modal-dialog p {
+        color: $dark-font-color;
+    }
+}
+</style>
--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
				`# This is a .gitignore style file for 'GrantBirki/json-yaml-validate' Action workflow`