# Blogging CMS

A lightweight, self-hosted blogging platform built with Go, HTML/CSS/JS, and MariaDB. Designed for digital sovereignty and easy Coolify deployment.

## Features

- ✍️ **Markdown Support** – Write posts in Markdown with live preview
- 📝 **Two Post Types** – Full blog posts or quick micro-posts
- 🏷️ **Tagging & Categories** – Organize content flexibly
- 🔍 **Full-Text Search** – Quick post discovery
- 📡 **RSS Feed** – Auto-generated feed for subscribers
- 👤 **User Management** – Multiple authors with role-based access
- 💬 **Comments** – Moderated comment system
- 🎨 **Material Design 3** – Modern, responsive UI
- 🔒 **Session-Based Auth** – Secure user authentication
- 📱 **Mobile Responsive** – Works on all devices
- 🐳 **Docker Ready** – One-command deployment on Coolify

## Architecture

```
blogging-cms/
├── main.go                 # Go backend with HTTP handlers & DB
├── go.mod / go.sum         # Go dependencies
├── Dockerfile              # Multi-stage Docker build
├── docker-compose.yml      # Full stack (app + MariaDB)
├── .env.example            # Configuration template
├── README.md               # This file
├── .gitignore              # Git configuration
├── templates/              # HTML templates
│   ├── home.html          # Homepage
│   ├── post.html          # Single post view
│   ├── category.html      # Category listing
│   └── dashboard.html     # Admin dashboard
├── static/                 # Frontend assets
│   ├── css/
│   │   └── material.css   # Material Design 3 stylesheet
│   └── js/
│       └── app.js         # Frontend logic & API client
└── .github/
    └── workflows/          # CI/CD (optional)
```

## Quick Start

### Prerequisites

- Docker & Docker Compose
- Or: Go 1.21+, MariaDB 11.0+

### With Docker (Recommended)

1. Clone the repository:
```bash
git clone https://github.com/kalvin0x8d0/blogging-cms.git
cd blogging-cms
```

2. Configure environment:
```bash
cp .env.example .env
# Edit .env with your settings
nano .env
```

3. Start the stack:
```bash
docker-compose up -d
```

4. Access the application:
- Homepage: `http://localhost:8080`
- Dashboard: `http://localhost:8080/dashboard`

### Without Docker

1. Install dependencies:
```bash
go mod download
```

2. Configure MariaDB:
```bash
# Create database and user
mysql -u root -p
CREATE DATABASE blogging_cms;
CREATE USER 'cms_user'@'localhost' IDENTIFIED BY 'secure_password';
GRANT ALL PRIVILEGES ON blogging_cms.* TO 'cms_user'@'localhost';
FLUSH PRIVILEGES;
```

3. Set environment variables:
```bash
export DB_HOST=localhost
export DB_USER=cms_user
export DB_PASSWORD=secure_password
export DB_NAME=blogging_cms
export PORT=8080
export SITE_URL=http://localhost:8080
export SESSION_KEY=generate-random-key-here
```

4. Run the application:
```bash
go run main.go
```

## Deployment on Coolify

### Prerequisites

- Coolify instance running
- Git repository (GitHub, GitLab, Gitea, etc.)
- Domain name (optional but recommended)

### Steps

1. **Create Coolify Project**
   - New Project → Select "Docker Compose"

2. **Connect Repository**
   - Link your Git repository with the blogging-cms code
   - Point to the root directory

3. **Configure Environment**
   - Add environment variables from `.env.example`:
     ```
     DB_HOST=mariadb
     DB_USER=cms_user
     DB_PASSWORD=your_secure_password
     DB_NAME=blogging_cms
     SITE_URL=https://your-domain.com
     SESSION_KEY=generate-random-key
     ```

4. **Deploy**
   - Coolify automatically picks up `docker-compose.yml`
   - Sets up MariaDB and Go application
   - Configure reverse proxy (Caddy) in Coolify settings

5. **Health Checks**
   - Coolify monitors `/` endpoint for health
   - Application includes built-in healthcheck

## API Reference

### Authentication

**POST** `/auth/register`
```json
{
  "username": "author",
  "email": "author@example.com",
  "password": "secure_password"
}
```

**POST** `/auth/login`
```json
{
  "email": "author@example.com",
  "password": "secure_password"
}
```

### Posts

**GET** `/api/posts?page=1`
- Get paginated list of published posts

**GET** `/api/posts/{id}`
- Get single post by ID

**POST** `/api/posts`
- Create new post (requires auth)
```json
{
  "title": "Post Title",
  "content": "# Markdown content",
  "excerpt": "Brief summary",
  "type": "post",
  "category": "Technology",
  "tags": ["go", "blogging"],
  "published": false
}
```

**PUT** `/api/posts/{id}`
- Update post (requires ownership)

**DELETE** `/api/posts/{id}`
- Delete post (requires ownership)

### Comments

**POST** `/api/comments`
```json
{
  "post_id": "post-uuid",
  "content": "Comment text"
}
```

### Search

**GET** `/api/search?q=query`
- Full-text search across posts

### Feeds

**GET** `/feed`
- RSS feed of all published posts

## Configuration

### Environment Variables

| Variable | Description | Default |
|----------|-------------|---------|
| `DB_HOST` | Database hostname | `mariadb` |
| `DB_PORT` | Database port | `3306` |
| `DB_USER` | Database user | `cms_user` |
| `DB_PASSWORD` | Database password | Required |
| `DB_NAME` | Database name | `blogging_cms` |
| `PORT` | Application port | `8080` |
| `SITE_URL` | Public site URL | `http://localhost:8080` |
| `SESSION_KEY` | Session encryption key | `dev-session-key` |

## Development

### Local Development

```bash
# Install Go
brew install go  # macOS
# or download from golang.org

# Clone repository
git clone <repo-url>
cd blogging-cms

# Install dependencies
go mod tidy

# Start MariaDB (Docker)
docker run -d \
  -e MYSQL_ROOT_PASSWORD=root \
  -e MYSQL_DATABASE=blogging_cms \
  -p 3306:3306 \
  mariadb:11.0

# Run application
go run main.go
```

### Building Docker Image

```bash
docker build -t blogging-cms:latest .
```

### Testing

```bash
# Unit tests (not yet implemented)
go test ./...

# Integration tests with docker-compose
docker-compose -f docker-compose.test.yml up
```

## Markdown Syntax

Supported Markdown features:

- **Headers**: `# H1`, `## H2`, etc.
- **Bold**: `**text**`
- **Italic**: `*text*`
- **Code**: `` `inline` `` or code blocks with triple backticks
- **Lists**: `- item` or `1. item`
- **Links**: `[text](url)`
- **Images**: `![alt](url)`
- **Blockquotes**: `> quote`

## Security Considerations

- Passwords are hashed (consider using bcrypt in production)
- Session tokens are encrypted
- CSRF protection via sessions
- SQL injection protection via prepared statements
- XSS protection via template escaping
- Comments are moderated before publication

### Hardening for Production

1. **Use HTTPS** – Configure in reverse proxy (Caddy)
2. **Change SESSION_KEY** – Generate secure random key
3. **Use strong DB password** – At least 32 characters
4. **Enable backups** – MariaDB volume backups
5. **Rate limiting** – Add reverse proxy rules
6. **Content Security Policy** – Configure in Dockerfile

## Performance

- Lightweight Go binary (~10MB)
- Efficient MariaDB queries with indexing
- Static asset caching
- Lazy-loaded comments
- Paginated post listings

## Troubleshooting

### Database Connection Error
```
Error: dial tcp mariadb:3306: connect: connection refused
```
Solution: Ensure MariaDB container is running and healthy
```bash
docker-compose logs mariadb
```

### Posts Not Displaying
- Check `published=true` in database
- Verify database query with: `mysql -h mariadb -u cms_user -p`

### Static Files 404
- Ensure `static/` and `templates/` directories exist
- Check file permissions: `ls -la static/`

## Contributing

1. Fork the repository
2. Create feature branch: `git checkout -b feature/name`
3. Commit changes: `git commit -m "Add feature"`
4. Push: `git push origin feature/name`
5. Create Pull Request

## License

MIT License. See LICENSE file for details.

## Acknowledgments

- Material Design 3 guidelines
- Go standard library
- Gorilla toolkit
- Docker community

## Author

**Kalvin** – Civic technologist and digital sovereignty advocate.
- GitHub: [@kalvin0x8d0](https://github.com/kalvin0x8d0)
- Fediverse: [@kalvin@social.obulou.org](https://social.obulou.org/@kalvin)
- Personal site: [obulou.org](https://obulou.org)

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