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Initialize Go module

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Lorenzo Iovino 2025-04-21 22:21:02 +02:00
parent f9549a10bb
commit 8995c5d601
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4
.env Normal file
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@ -0,0 +1,4 @@
SERVER_NAME=delemaco
SERVER_USER=root
MAC_ADDRESS=b8:cb:29:a1:f3:88
PORT=8080

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.env.sample Normal file
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SERVER_NAME=pippo
SERVER_USER=root
MAC_ADDRESS=aa:aa:aa:aa:aa:aa
PORT=8080

10
.github/workflows/build.yml vendored
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@ -87,15 +87,21 @@ jobs:
- name: Create archive for each platform
run: |
# Create templates directory in the package directories
mkdir -p armv6-package/templates
mkdir -p all-package/templates
# Copy template files
cp templates/* armv6-package/templates/
cp templates/* all-package/templates/
# ARMv6 package
mkdir -p armv6-package
cp wol-server-arm6 armv6-package/wol-server-arm6
cp wol-server.service armv6-package/
cp deploy.sh armv6-package/
tar -czf wol-server-armv6.tar.gz -C armv6-package .
# All-in-one package
mkdir -p all-package
cp wol-server-arm6 all-package/
cp wol-server.service all-package/
cp deploy.sh all-package/

316
README.md
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@ -1,66 +1,105 @@
![Server Status Screenshot](https://placeholder-for-screenshot.png)
# WOL-Server
A lightweight Wake-on-LAN (WOL) server application designed specifically for Raspberry Pi devices. This tool allows you to remotely power on your network devices using magic packets through a simple, user-friendly interface.
## Features
- **Status Monitoring**: Real-time status checks to determine if your server is online or offline
- **Wake-on-LAN**: Boot your server remotely with the click of a button
- **Remote Shutdown**: Safely shut down your server when it's not needed
- **Responsive UI**: Simple, mobile-friendly interface with color-coded status indicators
- **Lightweight**: Built with Go for minimal resource usage, perfect for Raspberry Pi Zero
## Requirements
- Raspberry Pi (Zero, 2, 3, 4, etc.)
- Go (version 1.16 or higher)
- wakeonlan utility
- SSH access to the target server (for shutdown functionality)
- Target server configured for Wake-on-LAN
- **Cross-Platform Compatibility**: Optimized for various Raspberry Pi models (Zero, 1, 2, 3, 4)
- **Easy Installation**: Automated deployment script for quick setup
- **Systemd Integration**: Runs as a system service for reliability
- **Simple Web Interface**: Control your devices through an intuitive web UI
- **Configurable**: Easily customize settings through environment variables or `.env` file
- **Low Resource Usage**: Minimal footprint to run efficiently on any Pi
## Installation
### 1. Install Dependencies
### Method 1: Pre-built Release (Recommended)
1. **Check which binary is right for your Raspberry Pi model**:
```bash
uname -m
```
- `armv6l`: Use `wol-server-arm6` (Pi Zero, Pi 1)
- `armv7l`: Use `wol-server-arm7` (Pi 2, Pi 3 32-bit)
- `aarch64`: Use `wol-server-arm64` (Pi 3/4 64-bit)
2. **Download the latest release**:
Navigate to [Releases](https://github.com/thisloke/wol-server/releases) and download the appropriate files for your Pi, or use the following commands:
```bash
# Create a directory for installation
mkdir -p ~/wol-install
cd ~/wol-install
# Download the executable (replace v6 with the latest version number)
wget https://github.com/thisloke/wol-server/releases/download/v6/wol-server-arm6
# Download the service file
wget https://github.com/thisloke/wol-server/releases/download/v6/wol-server.service
# Download the deploy script
wget https://github.com/thisloke/wol-server/releases/download/v6/deploy.sh
# Make files executable
chmod +x wol-server-arm6
chmod +x deploy.sh
```
3. **Create a `.env` file for configuration**:
```bash
cat > .env << EOL
# Server Configuration
SERVER_NAME=pippo
SERVER_USER=root
MAC_ADDRESS=aa:aa:aa:aa:aa:aa
PORT=8080
EOL
```
4. **Run the deployment script**:
```bash
./deploy.sh
```
### Method 2: Build from Source
If you prefer to build the application from source:
```bash
# Install Go (if not already installed)
sudo apt update
sudo apt install golang-go wakeonlan
```
sudo apt install golang-go
### 2. Clone the Repository
```bash
git clone https://github.com/yourusername/wol-server.git
# Clone the repository
git clone https://github.com/thisloke/wol-server.git
cd wol-server
```
### 3. Configure the Application
# Install dependencies
go get github.com/joho/godotenv
Edit the constants in `main.go` to match your server:
# Create a .env file for configuration
cat > .env << EOL
# Server Configuration
SERVER_NAME=pippo
SERVER_USER=root
MAC_ADDRESS=aa:aa:aa:aa:aa:aa
PORT=8080
EOL
```go
const (
serverName = "yourserver" // Hostname or IP address of your server
macAddress = "xx:xx:xx:xx:xx:xx" // MAC address of your server's network interface
port = "8080" // Port to run the web application on
)
```
### 4. Build the Application
```bash
# Build the application
go build -o wol-server
```
### 5. Set Up as a System Service
# Create installation directory
mkdir -p ~/wol-server
Create a systemd service file:
# Copy the binary and config
cp wol-server ~/wol-server/
cp .env ~/wol-server/
chmod +x ~/wol-server/wol-server
```bash
sudo nano /etc/systemd/system/wol-server.service
```
Add the following content (adjust paths if needed):
```
# Create and install systemd service
sudo bash -c 'cat > /etc/systemd/system/wol-server.service << EOL
[Unit]
Description=WOL Server Go Application
After=network.target
@ -73,75 +112,182 @@ Restart=always
[Install]
WantedBy=multi-user.target
```
EOL'
Enable and start the service:
```bash
# Enable and start the service
sudo systemctl daemon-reload
sudo systemctl enable wol-server
sudo systemctl start wol-server
```
## SSH Configuration for Remote Shutdown
### Method 3: Manual Installation
For the shutdown functionality to work, you need to set up password-less SSH:
If you encounter issues with the deployment script:
1. Generate an SSH key on your Raspberry Pi:
```bash
ssh-keygen -t rsa
# Create the application directory
mkdir -p ~/wol-server
# Copy the binary and rename it
cp wol-server-arm6 ~/wol-server/wol-server
chmod +x ~/wol-server/wol-server
# Copy the .env file
cp .env ~/wol-server/
# Install the service file
sudo cp wol-server.service /etc/systemd/system/
sudo systemctl daemon-reload
sudo systemctl enable wol-server
sudo systemctl start wol-server
```
2. Copy the key to your target server:
## Configuration
WOL-server can be configured using environment variables or a `.env` file in the application directory.
### Available Configuration Options
| Environment Variable | Description | Default Value |
|----------------------|-------------|---------------|
| `SERVER_NAME` | Name of the server to ping/wake | `pippo` |
| `SERVER_USER` | SSH username for remote commands | `root` |
| `MAC_ADDRESS` | MAC address of the target server | `aa:aa:aa:aa:aa:aa` |
| `PORT` | The port number for the web server | `8080` |
### Customizing Your Configuration
You can edit the `.env` file to modify the application's behavior:
```bash
ssh-copy-id user@yourserver
# Navigate to the installation directory
cd ~/wol-server
# Edit the .env file
nano .env
```
3. Configure sudo on the target server to allow password-less shutdown:
```bash
# On the target server, run:
sudo visudo
After modifying the configuration, restart the service:
# Add this line (replacing 'user' with your username):
user ALL=(ALL) NOPASSWD: /sbin/shutdown
```bash
sudo systemctl restart wol-server
```
## Usage
Access the web interface by navigating to `http://raspberry-pi-ip:8080` in your browser.
Once installed, the WOL server will be accessible at:
```
http://your-pi-ip:8080
```
(or whatever port you've configured)
The interface provides:
### Using the Web Interface
- Current server status (Online/Offline)
- Boot button - sends a Wake-on-LAN magic packet to your server
- Shutdown button - safely shuts down your server via SSH
- Refresh button - manually updates the status display
1. **Wake Server**: Click the "Boot" button to send a Wake-on-LAN magic packet to the configured MAC address
2. **Shut Down Server**: Click the "Shutdown" button, confirm, and enter your password if required
## Service Management
Control the WOL server using standard systemd commands:
```bash
# Check service status
sudo systemctl status wol-server
# Stop the service
sudo systemctl stop wol-server
# Start the service
sudo systemctl start wol-server
# Restart the service
sudo systemctl restart wol-server
# View logs
journalctl -u wol-server -f
```
## Updating to a New Version
To update to a new version:
```bash
# Navigate to a temporary directory
mkdir -p ~/wol-update
cd ~/wol-update
# Download the latest release (replace v7 with the latest version number)
wget https://github.com/thisloke/wol-server/releases/download/v7/wol-server-arm6
chmod +x wol-server-arm6
# Stop the service
sudo systemctl stop wol-server
# Replace the binary
cp wol-server-arm6 ~/wol-server/wol-server
# Start the service
sudo systemctl start wol-server
# Clean up
cd ~
rm -rf ~/wol-update
```
## Troubleshooting
- **Server won't boot**:
- Verify that Wake-on-LAN is enabled in your server's BIOS/UEFI
- Confirm the MAC address is correct
- Check if your router blocks Wake-on-LAN packets
### Checking Your Raspberry Pi Architecture
- **Shutdown doesn't work**:
- Verify SSH key setup
- Check sudo configuration on target server
- Test manual SSH command: `ssh user@server sudo shutdown -h now`
If you need to verify which version of the application you should use:
- **Web interface not accessible**:
- Ensure the service is running: `sudo systemctl status wol-server`
- Check for firewall rules blocking port 8080
- Verify the Raspberry Pi is connected to the network
```bash
uname -m
```
This will output your Pi's architecture:
- `armv6l`: Use the `wol-server-arm6` binary (Pi Zero, Pi 1)
- `armv7l`: Use the `wol-server-arm7` binary (Pi 2, Pi 3)
- `aarch64`: Use the `wol-server-arm64` binary (64-bit Pi 3, Pi 4)
### Service Not Starting
If the service doesn't start properly, check the logs:
```bash
journalctl -u wol-server -e
```
### Checking Configuration
Verify that your configuration is being properly loaded:
```bash
# View the environment variables being used
sudo systemctl status wol-server
```
Look for a line in the output that shows the loaded configuration values.
### Permission Issues
Make sure the binary has execute permissions:
```bash
chmod +x ~/wol-server/wol-server
```
### Can't Download Release Files
If you're having trouble downloading the release files directly, you can also:
1. Download the files on your computer
2. Transfer them to your Raspberry Pi using SCP, SFTP, or a USB drive
3. Continue with the installation steps as described above
## Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
Contributions are welcome! Feel free to submit pull requests or open issues for bugs and feature requests.
## License
This project is licensed under the MIT License - see the LICENSE file for details.
## Acknowledgments
- Inspired by the need for a simple, lightweight server power management tool
- Thanks to the Go community for the excellent standard library that makes web development straightforward

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go.mod Normal file
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module github.com/thisloke/wol-server
go 1.20
require github.com/joho/godotenv v1.5.1 // indirect

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go.sum Normal file
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@ -0,0 +1,2 @@
github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=

216
handlers.go Normal file
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@ -0,0 +1,216 @@
package main
import (
"log"
"net/http"
"runtime"
)
// Handle the root route - show status
func indexHandler(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.NotFound(w, r)
return
}
online := isServerOnline()
status := "Online"
color := "#4caf50" // Material green
if !online {
status = "Offline"
color = "#d32f2f" // Material red
}
data := StatusData{
Server: serverName,
Status: status,
Color: color,
IsTestMode: runtime.GOOS == "darwin",
AskPassword: false,
ErrorMessage: "",
}
if err := tmpl.Execute(w, data); err != nil {
http.Error(w, "Failed to render template", http.StatusInternalServerError)
log.Printf("Template render error: %v", err)
}
}
// Handle boot request
func bootHandler(w http.ResponseWriter, r *http.Request) {
if !isServerOnline() {
// Boot the server using wakeonlan
err := sendWakeOnLAN()
if err != nil {
log.Printf("Error booting server: %v", err)
}
// Display booting status
data := StatusData{
Server: serverName,
Status: "Booting",
Color: "#607d8b", // Material blue-gray
IsTestMode: runtime.GOOS == "darwin",
AskPassword: false,
}
if err := tmpl.Execute(w, data); err != nil {
http.Error(w, "Failed to render template", http.StatusInternalServerError)
log.Printf("Template render error: %v", err)
}
} else {
// Server is already online
data := StatusData{
Server: serverName,
Status: "Online",
Color: "#4caf50", // Material green
IsTestMode: runtime.GOOS == "darwin",
AskPassword: false,
}
if err := tmpl.Execute(w, data); err != nil {
http.Error(w, "Failed to render template", http.StatusInternalServerError)
log.Printf("Template render error: %v", err)
}
}
}
// Handle shutdown confirmation request
func confirmShutdownHandler(w http.ResponseWriter, r *http.Request) {
online := isServerOnline()
if !online {
// Server is already offline
data := StatusData{
Server: serverName,
Status: "Offline",
Color: "#d32f2f", // Material red
IsTestMode: runtime.GOOS == "darwin",
AskPassword: false,
}
if err := tmpl.Execute(w, data); err != nil {
http.Error(w, "Failed to render template", http.StatusInternalServerError)
log.Printf("Template render error: %v", err)
}
return
}
// Show confirmation dialog
data := StatusData{
Server: serverName,
Status: "Online",
Color: "#4caf50", // Material green
IsTestMode: runtime.GOOS == "darwin",
ConfirmShutdown: true,
AskPassword: false,
}
if err := tmpl.Execute(w, data); err != nil {
http.Error(w, "Failed to render template", http.StatusInternalServerError)
log.Printf("Template render error: %v", err)
}
}
// Handle password entry for shutdown
func enterPasswordHandler(w http.ResponseWriter, r *http.Request) {
if !isServerOnline() {
// Server is already offline, redirect to home
http.Redirect(w, r, "/", http.StatusSeeOther)
return
}
// Show password entry dialog
data := StatusData{
Server: serverName,
Status: "Online",
Color: "#4caf50", // Material green
IsTestMode: runtime.GOOS == "darwin",
AskPassword: true,
}
if err := tmpl.Execute(w, data); err != nil {
http.Error(w, "Failed to render template", http.StatusInternalServerError)
log.Printf("Template render error: %v", err)
}
}
// Handle actual shutdown request
func shutdownHandler(w http.ResponseWriter, r *http.Request) {
// Only process POST requests for security
if r.Method != "POST" {
http.Redirect(w, r, "/", http.StatusSeeOther)
return
}
// Parse form data to get password
if err := r.ParseForm(); err != nil {
log.Printf("Error parsing form: %v", err)
http.Redirect(w, r, "/", http.StatusSeeOther)
return
}
// Get password from form
password := r.FormValue("password")
if password == "" {
// Show password form again with error
data := StatusData{
Server: serverName,
Status: "Online",
Color: "#4caf50",
IsTestMode: runtime.GOOS == "darwin",
AskPassword: true,
ErrorMessage: "Password cannot be empty",
}
if err := tmpl.Execute(w, data); err != nil {
http.Error(w, "Failed to render template", http.StatusInternalServerError)
log.Printf("Template render error: %v", err)
}
return
}
if isServerOnline() {
// Shutdown the server
err := shutdownServer(password)
if err != nil {
log.Printf("Error shutting down server: %v", err)
// Show password form again with error
data := StatusData{
Server: serverName,
Status: "Online",
Color: "#4caf50",
IsTestMode: runtime.GOOS == "darwin",
AskPassword: true,
ErrorMessage: "Failed to shutdown server. Please check your password.",
}
if err := tmpl.Execute(w, data); err != nil {
http.Error(w, "Failed to render template", http.StatusInternalServerError)
log.Printf("Template render error: %v", err)
}
return
}
// Display shutting down status
data := StatusData{
Server: serverName,
Status: "Shutting down",
Color: "#5d4037", // Material brown
IsTestMode: runtime.GOOS == "darwin",
AskPassword: false,
}
if err := tmpl.Execute(w, data); err != nil {
http.Error(w, "Failed to render template", http.StatusInternalServerError)
log.Printf("Template render error: %v", err)
}
} else {
// Server is already offline
data := StatusData{
Server: serverName,
Status: "Offline",
Color: "#d32f2f", // Material red
IsTestMode: runtime.GOOS == "darwin",
AskPassword: false,
}
if err := tmpl.Execute(w, data); err != nil {
http.Error(w, "Failed to render template", http.StatusInternalServerError)
log.Printf("Template render error: %v", err)
}
}
}

410
main.go
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@ -2,405 +2,63 @@ package main
import (
"fmt"
"html/template"
"log"
"net/http"
"os/exec"
"os"
"runtime"
"github.com/joho/godotenv"
)
const (
serverName = "delemaco" // Server to ping
macAddress = "b8:cb:29:a1:f3:88" // MAC address of the server
// Default values
var (
serverName = "server" // Server to ping
serverUser = "root" // SSH username
macAddress = "aa:aa:aa:aa:aa:aa" // MAC address of the server
port = "8080" // Port to listen on
)
// StatusData holds data for the HTML template
type StatusData struct {
Server string
Status string
Color string
IsTestMode bool
func loadEnvVariables() {
// Load .env file if it exists
if err := godotenv.Load(); err != nil {
log.Println("No .env file found, using default values")
}
// Check if server is online
func isServerOnline() bool {
var cmd *exec.Cmd
// macOS and Linux have slightly different ping commands
if runtime.GOOS == "darwin" {
cmd = exec.Command("ping", "-c", "1", "-W", "1000", serverName)
} else {
cmd = exec.Command("ping", "-c", "1", "-W", "1", serverName)
// Override defaults with environment variables if they exist
if envServerName := os.Getenv("SERVER_NAME"); envServerName != "" {
serverName = envServerName
}
err := cmd.Run()
return err == nil
if envServerUser := os.Getenv("SERVER_USER"); envServerUser != "" {
serverUser = envServerUser
}
// Send WOL packet
func sendWakeOnLAN() error {
log.Printf("Sending WOL packet to %s (%s)", serverName, macAddress)
cmd := exec.Command("wakeonlan", macAddress)
return cmd.Run()
if envMacAddress := os.Getenv("MAC_ADDRESS"); envMacAddress != "" {
macAddress = envMacAddress
}
// Shutdown server
func shutdownServer() error {
// Real shutdown command for Linux
log.Printf("Sending shutdown command to %s", serverName)
cmd := exec.Command("ssh", serverName, "sudo", "shutdown", "-h", "now")
return cmd.Run()
if envPort := os.Getenv("PORT"); envPort != "" {
port = envPort
}
// Handle the root route - show status
func indexHandler(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.NotFound(w, r)
return
}
online := isServerOnline()
status := "Online"
color := "#4caf50" // Material green
if !online {
status = "Offline"
color = "#d32f2f" // Material red
}
data := StatusData{
Server: serverName,
Status: status,
Color: color,
IsTestMode: runtime.GOOS == "darwin",
}
renderTemplate(w, data)
}
// Handle boot request
func bootHandler(w http.ResponseWriter, r *http.Request) {
if !isServerOnline() {
// Boot the server using wakeonlan
err := sendWakeOnLAN()
if err != nil {
log.Printf("Error booting server: %v", err)
}
// Display booting status
data := StatusData{
Server: serverName,
Status: "Booting",
Color: "#607d8b", // Material blue-gray
IsTestMode: runtime.GOOS == "darwin",
}
renderTemplate(w, data)
} else {
// Server is already online
data := StatusData{
Server: serverName,
Status: "Online",
Color: "#4caf50", // Material green
IsTestMode: runtime.GOOS == "darwin",
}
renderTemplate(w, data)
}
}
// Handle shutdown request
func shutdownHandler(w http.ResponseWriter, r *http.Request) {
if isServerOnline() {
// Shutdown the server
err := shutdownServer()
if err != nil {
log.Printf("Error shutting down server: %v", err)
}
// Display shutting down status
data := StatusData{
Server: serverName,
Status: "Shutting down",
Color: "#5d4037", // Material brown
IsTestMode: runtime.GOOS == "darwin",
}
renderTemplate(w, data)
} else {
// Server is already offline
data := StatusData{
Server: serverName,
Status: "Offline",
Color: "#d32f2f", // Material red
IsTestMode: runtime.GOOS == "darwin",
}
renderTemplate(w, data)
}
}
// Render the HTML template
func renderTemplate(w http.ResponseWriter, data StatusData) {
tmpl, err := template.New("status").Parse(`<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Server Status: {{.Server}}</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700&display=swap" rel="stylesheet">
<style>
:root {
--primary-color: {{.Color}};
--text-color: white;
--shadow-color: rgba(0, 0, 0, 0.3);
--hover-color: rgba(255, 255, 255, 0.1);
--card-bg: rgba(0, 0, 0, 0.15);
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background-color: var(--primary-color);
font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
min-height: 100vh;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
color: var(--text-color);
padding: 20px;
transition: background-color 0.5s ease;
background-image: radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 20%),
radial-gradient(circle at 90% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 20%);
}
.container {
max-width: 800px;
width: 100%;
display: flex;
flex-direction: column;
align-items: center;
}
.card {
background-color: var(--card-bg);
border-radius: 20px;
padding: 40px;
margin-bottom: 30px;
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
backdrop-filter: blur(5px);
width: 100%;
max-width: 600px;
border: 1px solid rgba(255, 255, 255, 0.1);
}
.status-icon {
font-size: 48px;
margin-bottom: 20px;
text-align: center;
}
.status-text {
font-size: 2.5rem;
font-weight: 600;
text-align: center;
margin-bottom: 10px;
text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}
.server-name {
font-size: 1.2rem;
text-align: center;
margin-bottom: 30px;
opacity: 0.9;
}
.controls {
display: flex;
gap: 15px;
flex-wrap: wrap;
justify-content: center;
}
.button {
padding: 15px 25px;
font-size: 1rem;
font-weight: 600;
border: none;
border-radius: 50px;
cursor: pointer;
text-decoration: none;
color: var(--text-color);
background-color: var(--shadow-color);
transition: transform 0.2s ease, background-color 0.3s ease, box-shadow 0.3s ease;
min-width: 140px;
text-align: center;
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
display: flex;
align-items: center;
justify-content: center;
gap: 8px;
}
.button:hover {
background-color: var(--hover-color);
transform: translateY(-3px);
box-shadow: 0 7px 14px rgba(0, 0, 0, 0.15);
}
.button:active {
transform: translateY(1px);
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.button::before {
content: '';
display: inline-block;
width: 20px;
height: 20px;
background-size: contain;
background-repeat: no-repeat;
background-position: center;
}
.button.refresh::before {
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' viewBox='0 -960 960 960' width='24' fill='white'%3E%3Cpath d='M480-160q-133 0-226.5-93.5T160-480q0-133 93.5-226.5T480-800q85 0 149 34.5T740-671v-99q0-13 8.5-21.5T770-800q13 0 21.5 8.5T800-770v194q0 13-8.5 21.5T770-546H576q-13 0-21.5-8.5T546-576q0-13 8.5-21.5T576-606h138q-38-60-97-97t-137-37q-109 0-184.5 75.5T220-480q0 109 75.5 184.5T480-220q59 0 111-25t89-69q8-9 20.5-10t21.5 7q9 8 10 20t-7 22q-45 53-112 86.5T480-160Z'/%3E%3C/svg%3E");
}
.button.boot::before {
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' viewBox='0 -960 960 960' width='24' fill='white'%3E%3Cpath d='M480-120q-151 0-255.5-104.5T120-480q0-138 89-239t219-120q20-3 33.5 9.5T480-797q4 20-9 35.5T437-748q-103 12-170 87t-67 181q0 124 88 212t212 88q124 0 212-88t88-212q0-109-69.5-184.5T564-748q-21-3-31.5-19T525-798q3-20 19-30.5t35-6.5q136 19 228.5 122.5T900-480q0 150-104.5 255T480-120Zm0-170q-20 0-33.5-14T433-340v-286q0-21 14-34.5t33-13.5q20 0 33.5 13.5T527-626v286q0 22-14 36t-33 14Z'/%3E%3C/svg%3E");
}
.button.shutdown::before {
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' viewBox='0 -960 960 960' width='24' fill='white'%3E%3Cpath d='M480-120q-151 0-255.5-104.5T120-480q0-138 89-239t219-120q20-3 33.5 9.5T480-797q4 20-9 35.5T437-748q-103 12-170 87t-67 181q0 124 88 212t212 88q124 0 212-88t88-212q0-109-69.5-184.5T564-748q-21-3-31.5-19T525-798q3-20 19-30.5t35-6.5q136 19 228.5 122.5T900-480q0 150-104.5 255T480-120Zm0-360Z'/%3E%3C/svg%3E");
}
.test-panel {
margin-top: 40px;
padding: 20px;
background-color: rgba(0, 0, 0, 0.3);
border-radius: 15px;
width: 100%;
max-width: 600px;
border: 1px solid rgba(255, 255, 255, 0.1);
}
.test-note {
color: white;
margin-bottom: 20px;
text-align: center;
font-size: 0.9rem;
opacity: 0.8;
}
.footer {
margin-top: 40px;
font-size: 0.8rem;
opacity: 0.7;
text-align: center;
}
/* Responsive adjustments */
@media (max-width: 600px) {
.card {
padding: 30px 20px;
}
.status-text {
font-size: 2rem;
}
.controls {
flex-direction: column;
width: 100%;
}
.button {
width: 100%;
}
}
/* Status-specific icons */
{{if eq .Status "Online"}}
.status-icon::before {
content: "✓";
color: #4caf50;
}
{{else if eq .Status "Offline"}}
.status-icon::before {
content: "✗";
color: #f44336;
}
{{else if eq .Status "Booting"}}
.status-icon::before {
content: "⟳";
color: #ffeb3b;
display: inline-block;
animation: spin 2s linear infinite;
}
{{else if eq .Status "Shutting down"}}
.status-icon::before {
content: "⏻";
color: #ff9800;
}
{{end}}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
</style>
</head>
<body>
<div class="container">
<div class="card">
<div class="status-icon"></div>
<h1 class="status-text">{{.Status}}</h1>
<div class="server-name">Server: <strong>{{.Server}}</strong></div>
<div class="controls">
<a href="/" class="button refresh">Refresh</a>
<a href="/boot" class="button boot">Boot</a>
<a href="/shutdown" class="button shutdown">Shutdown</a>
</div>
</div>
{{if .IsTestMode}}
<div class="test-panel">
<div class="test-note">
Running on macOS in test mode. Wake-on-LAN packets are sent, but remote shutdown is simulated.
</div>
</div>
{{end}}
<div class="footer">
Wake-on-LAN Server Control Panel
</div>
</div>
</body>
</html>`)
if err != nil {
http.Error(w, "Failed to load template", http.StatusInternalServerError)
log.Printf("Template error: %v", err)
return
}
err = tmpl.Execute(w, data)
if err != nil {
http.Error(w, "Failed to render template", http.StatusInternalServerError)
log.Printf("Template render error: %v", err)
}
log.Printf("Configuration loaded: SERVER_NAME=%s, SERVER_USER=%s, MAC_ADDRESS=%s, PORT=%s",
serverName, serverUser, macAddress, port)
}
func main() {
// Load environment variables
loadEnvVariables()
// Setup template
if err := setupTemplate(); err != nil {
log.Fatalf("Failed to setup template: %v", err)
}
// Register route handlers
http.HandleFunc("/", indexHandler)
http.HandleFunc("/boot", bootHandler)
http.HandleFunc("/confirm-shutdown", confirmShutdownHandler)
http.HandleFunc("/enter-password", enterPasswordHandler)
http.HandleFunc("/shutdown", shutdownHandler)
// Start the server
@ -408,7 +66,7 @@ func main() {
log.Printf("Starting WOL Server on http://localhost%s", listenAddr)
if runtime.GOOS == "darwin" {
log.Println("Running on macOS in test mode - remote shutdown commands will be simulated")
log.Println("Running on macOS - commands will be executed using the provided password")
}
if err := http.ListenAndServe(listenAddr, nil); err != nil {

402
templates/status.html Normal file
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@ -0,0 +1,402 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Server Status: {{.Server}}</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700&display=swap" rel="stylesheet">
<style>
:root {
--primary-color: {{.Color}};
--text-color: white;
--shadow-color: rgba(0, 0, 0, 0.3);
--hover-color: rgba(255, 255, 255, 0.1);
--card-bg: rgba(0, 0, 0, 0.15);
--danger-color: #f44336;
--success-color: #4caf50;
--modal-bg: rgba(0, 0, 0, 0.85);
--error-color: #ff6b6b;
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background-color: var(--primary-color);
font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
min-height: 100vh;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
color: var(--text-color);
padding: 20px;
transition: background-color 0.5s ease;
background-image: radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 20%),
radial-gradient(circle at 90% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 20%);
}
.container {
max-width: 800px;
width: 100%;
display: flex;
flex-direction: column;
align-items: center;
}
.card {
background-color: var(--card-bg);
border-radius: 20px;
padding: 40px;
margin-bottom: 30px;
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
backdrop-filter: blur(5px);
width: 100%;
max-width: 600px;
border: 1px solid rgba(255, 255, 255, 0.1);
position: relative;
}
.status-icon {
font-size: 48px;
margin-bottom: 20px;
text-align: center;
}
.status-text {
font-size: 2.5rem;
font-weight: 600;
text-align: center;
margin-bottom: 10px;
text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}
.server-name {
font-size: 1.2rem;
text-align: center;
margin-bottom: 30px;
opacity: 0.9;
}
.controls {
display: flex;
gap: 15px;
flex-wrap: wrap;
justify-content: center;
}
.button {
padding: 15px 25px;
font-size: 1rem;
font-weight: 600;
border: none;
border-radius: 50px;
cursor: pointer;
text-decoration: none;
color: var(--text-color);
background-color: var(--shadow-color);
transition: transform 0.2s ease, background-color 0.3s ease, box-shadow 0.3s ease;
min-width: 140px;
text-align: center;
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
display: flex;
align-items: center;
justify-content: center;
gap: 8px;
}
.button:hover {
background-color: var(--hover-color);
transform: translateY(-3px);
box-shadow: 0 7px 14px rgba(0, 0, 0, 0.15);
}
.button:active {
transform: translateY(1px);
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.button.danger {
background-color: var(--danger-color);
}
.button.success {
background-color: var(--success-color);
}
.button.submit {
background-color: var(--success-color);
}
.button::before {
content: '';
display: inline-block;
width: 20px;
height: 20px;
background-size: contain;
background-repeat: no-repeat;
background-position: center;
}
.button.refresh::before {
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' viewBox='0 -960 960 960' width='24' fill='white'%3E%3Cpath d='M480-160q-133 0-226.5-93.5T160-480q0-133 93.5-226.5T480-800q85 0 149 34.5T740-671v-99q0-13 8.5-21.5T770-800q13 0 21.5 8.5T800-770v194q0 13-8.5 21.5T770-546H576q-13 0-21.5-8.5T546-576q0-13 8.5-21.5T576-606h138q-38-60-97-97t-137-37q-109 0-184.5 75.5T220-480q0 109 75.5 184.5T480-220q59 0 111-25t89-69q8-9 20.5-10t21.5 7q9 8 10 20t-7 22q-45 53-112 86.5T480-160Z'/%3E%3C/svg%3E");
}
.button.boot::before {
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' viewBox='0 -960 960 960' width='24' fill='white'%3E%3Cpath d='M480-120q-151 0-255.5-104.5T120-480q0-138 89-239t219-120q20-3 33.5 9.5T480-797q4 20-9 35.5T437-748q-103 12-170 87t-67 181q0 124 88 212t212 88q124 0 212-88t88-212q0-109-69.5-184.5T564-748q-21-3-31.5-19T525-798q3-20 19-30.5t35-6.5q136 19 228.5 122.5T900-480q0 150-104.5 255T480-120Zm0-170q-20 0-33.5-14T433-340v-286q0-21 14-34.5t33-13.5q20 0 33.5 13.5T527-626v286q0 22-14 36t-33 14Z'/%3E%3C/svg%3E");
}
.button.shutdown::before {
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' viewBox='0 -960 960 960' width='24' fill='white'%3E%3Cpath d='M480-120q-151 0-255.5-104.5T120-480q0-138 89-239t219-120q20-3 33.5 9.5T480-797q4 20-9 35.5T437-748q-103 12-170 87t-67 181q0 124 88 212t212 88q124 0 212-88t88-212q0-109-69.5-184.5T564-748q-21-3-31.5-19T525-798q3-20 19-30.5t35-6.5q136 19 228.5 122.5T900-480q0 150-104.5 255T480-120Zm0-360Z'/%3E%3C/svg%3E");
}
.button.submit::before {
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' height='24' viewBox='0 -960 960 960' width='24' fill='white'%3E%3Cpath d='M382-240 154-468l57-57 171 171 367-367 57 57-424 424Z'/%3E%3C/svg%3E");
}
.test-panel {
margin-top: 40px;
padding: 20px;
background-color: rgba(0, 0, 0, 0.3);
border-radius: 15px;
width: 100%;
max-width: 600px;
border: 1px solid rgba(255, 255, 255, 0.1);
}
.test-note {
color: white;
margin-bottom: 20px;
text-align: center;
font-size: 0.9rem;
opacity: 0.8;
}
.footer {
margin-top: 40px;
font-size: 0.8rem;
opacity: 0.7;
text-align: center;
}
/* Modal styles */
.modal-overlay {
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
background-color: var(--modal-bg);
display: flex;
justify-content: center;
align-items: center;
z-index: 1000;
backdrop-filter: blur(5px);
}
.modal-content {
background-color: #1e1e1e;
border-radius: 20px;
padding: 30px;
width: 90%;
max-width: 500px;
box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
border: 1px solid rgba(255, 255, 255, 0.1);
}
.modal-header {
font-size: 1.5rem;
font-weight: 600;
margin-bottom: 20px;
text-align: center;
color: #ffffff;
}
.modal-body {
margin-bottom: 30px;
text-align: center;
line-height: 1.6;
}
.modal-actions {
display: flex;
justify-content: center;
gap: 15px;
}
/* Form styles */
.form-group {
margin-bottom: 25px;
width: 100%;
}
.form-label {
display: block;
margin-bottom: 10px;
font-size: 0.9rem;
font-weight: 600;
}
.form-input {
width: 100%;
padding: 12px 15px;
border-radius: 8px;
border: 1px solid rgba(255, 255, 255, 0.2);
background-color: rgba(0, 0, 0, 0.2);
color: white;
font-size: 1rem;
transition: border-color 0.3s, box-shadow 0.3s;
}
.form-input:focus {
outline: none;
border-color: rgba(255, 255, 255, 0.5);
box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.1);
}
.error-message {
color: var(--error-color);
font-size: 0.9rem;
margin-top: 10px;
text-align: center;
}
/* Responsive adjustments */
@media (max-width: 600px) {
.card {
padding: 30px 20px;
}
.status-text {
font-size: 2rem;
}
.controls {
flex-direction: column;
width: 100%;
}
.button {
width: 100%;
}
.modal-content {
padding: 20px;
}
.modal-actions {
flex-direction: column;
}
.modal-actions .button {
width: 100%;
}
}
/* Status-specific icons */
{{if eq .Status "Online"}}
.status-icon::before {
content: "✓";
color: #4caf50;
}
{{else if eq .Status "Offline"}}
.status-icon::before {
content: "✗";
color: #f44336;
}
{{else if eq .Status "Booting"}}
.status-icon::before {
content: "⟳";
color: #ffeb3b;
display: inline-block;
animation: spin 2s linear infinite;
}
{{else if eq .Status "Shutting down"}}
.status-icon::before {
content: "⏻";
color: #ff9800;
}
{{end}}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
</style>
</head>
<body>
<div class="container">
<div class="card">
<div class="status-icon"></div>
<h1 class="status-text">{{.Status}}</h1>
<div class="server-name">Server: <strong>{{.Server}}</strong></div>
<div class="controls">
<a href="/" class="button refresh">Refresh</a>
<a href="/boot" class="button boot">Boot</a>
<a href="/confirm-shutdown" class="button shutdown">Shutdown</a>
</div>
</div>
{{if .IsTestMode}}
<div class="test-panel">
<div class="test-note">
Running on macOS. Commands will be executed using the provided password.
</div>
</div>
{{end}}
<div class="footer">
Wake-on-LAN Server Control Panel
</div>
</div>
{{if .ConfirmShutdown}}
<div class="modal-overlay">
<div class="modal-content">
<div class="modal-header">Confirm Shutdown</div>
<div class="modal-body">
Are you sure you want to shut down <strong>{{.Server}}</strong>?<br>
This will immediately power off the server.
</div>
<div class="modal-actions">
<a href="/" class="button">Cancel</a>
<a href="/enter-password" class="button danger">Yes, Continue</a>
</div>
</div>
</div>
{{end}}
{{if .AskPassword}}
<div class="modal-overlay">
<div class="modal-content">
<div class="modal-header">Enter Password</div>
<div class="modal-body">
Please enter the password for <strong>{{.Server}}</strong> to shutdown the server.
<form action="/shutdown" method="POST">
<div class="form-group">
<label for="password" class="form-label">Password:</label>
<input type="password" id="password" name="password" class="form-input" autofocus>
</div>
{{if .ErrorMessage}}
<div class="error-message">{{.ErrorMessage}}</div>
{{end}}
<div class="modal-actions">
<a href="/" class="button">Cancel</a>
<button type="submit" class="button submit">Submit</button>
</div>
</form>
</div>
</div>
</div>
{{end}}
</body>
</html>

100
utils.go Normal file
View file

@ -0,0 +1,100 @@
package main
import (
"bytes"
"fmt"
"html/template"
"log"
"os"
"os/exec"
"path/filepath"
"runtime"
)
// StatusData holds data for the HTML template
type StatusData struct {
Server string
Status string
Color string
IsTestMode bool
ConfirmShutdown bool
AskPassword bool
ErrorMessage string
}
var tmpl *template.Template
// Setup the HTML template
func setupTemplate() error {
// Check if templates directory exists, create if not
if _, err := os.Stat("templates"); os.IsNotExist(err) {
if err := os.Mkdir("templates", 0755); err != nil {
return fmt.Errorf("failed to create templates directory: %v", err)
}
}
// Path to the template file
templatePath := filepath.Join("templates", "status.html")
// Check if the template file exists
if _, err := os.Stat(templatePath); os.IsNotExist(err) {
log.Printf("Template file not found at %s. Please create it.", templatePath)
return fmt.Errorf("template file not found: %s", templatePath)
}
// Parse the template from the file
var err error
tmpl, err = template.ParseFiles(templatePath)
if err != nil {
return fmt.Errorf("failed to parse template: %v", err)
}
return nil
}
// Check if server is online
func isServerOnline() bool {
var cmd *exec.Cmd
// macOS and Linux have slightly different ping commands
if runtime.GOOS == "darwin" {
cmd = exec.Command("ping", "-c", "1", "-W", "1000", serverName)
} else {
cmd = exec.Command("ping", "-c", "1", "-W", "1", serverName)
}
err := cmd.Run()
return err == nil
}
// Send WOL packet
func sendWakeOnLAN() error {
log.Printf("Sending WOL packet to %s (%s)", serverName, macAddress)
cmd := exec.Command("wakeonlan", macAddress)
return cmd.Run()
}
// Shutdown server with password
func shutdownServer(password string) error {
log.Printf("Sending shutdown command to %s", serverName)
// Add more SSH options to handle potential issues
cmd := exec.Command("sshpass", "-p", password, "ssh",
"-o", "StrictHostKeyChecking=no",
"-o", "UserKnownHostsFile=/dev/null",
"-o", "LogLevel=ERROR",
fmt.Sprintf("%s@%s", serverUser, serverName),
"sudo", "-S", "shutdown", "-h", "now")
// Capture stderr to log any error messages
var stderr bytes.Buffer
cmd.Stderr = &stderr
err := cmd.Run()
if err != nil {
log.Printf("SSH Error details: %s", stderr.String())
return fmt.Errorf("SSH command failed: %v - %s", err, stderr.String())
}
return nil
}