https://github.com/codesignal/learn_pastebin-java
https://github.com/codesignal/learn_pastebin-java
Last synced: 6 months ago
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- Host: GitHub
- URL: https://github.com/codesignal/learn_pastebin-java
- Owner: CodeSignal
- License: other
- Created: 2025-09-22T15:18:32.000Z (6 months ago)
- Default Branch: main
- Last Pushed: 2025-09-22T19:49:08.000Z (6 months ago)
- Last Synced: 2025-09-22T21:22:35.454Z (6 months ago)
- Language: Java
- Size: 58.6 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# Pastebin Demo Application
A simple Pastebin-like application built with Spring Boot, React, TypeScript. This application is intentionally built with minimal security measures for educational purposes in security courses.
## Features
- Code snippet creation and editing
- Support for multiple programming languages:
- TypeScript
- JavaScript
- Python
- Java
- C++
- Syntax highlighting using CodeMirror
- File upload functionality
- Basic user authentication
- Unique URLs for each saved snippet
- SQLite database with Hibernate/JPA
## ⚠️ Security Notice
This application is deliberately built WITHOUT security measures for educational purposes. It contains various vulnerabilities including but not limited to:
- SQL Injection possibilities
- No input validation
- Weak authentication
- No CSRF protection
- Potential XSS vulnerabilities
DO NOT USE THIS IN PRODUCTION!
## Prerequisites
- Java 17 (JDK)
- Maven 3.9+
- Node.js (v18 or higher)
- npm (Node Package Manager)
## Installation
1. Build the frontend:
```bash
cd frontend
npm install
npm run build
cd ..
```
2. Start the application (backend):
```bash
cd backend
mvn spring-boot:run
```
## Usage
1. Access the application at `http://localhost:3000`
2. Login with default credentials:
- Username: `admin`
- Password: `codesignal`
3. Create new snippets:
- Enter a title
- Select a programming language
- Write or paste your code
- Click "Save" to generate a unique URL
4. Upload files:
- Click the file upload button
- Select a text file
- The content will be automatically loaded into the editor
5. Access saved snippets:
- Use the generated URL (format: `/snippet/:id`)
- Edit and save changes as needed
## Development
### Running in Development Mode
```bash
# Build frontend
cd frontend && npm install && npm run build && cd ..
# Run backend (will serve the built frontend)
cd backend && mvn spring-boot:run
```
The application runs on port 3000 by default.
### Troubleshooting
If you encounter issues:
1. **Java version issues**: Ensure you're using JDK 17 and Maven 3.9+
2. **Frontend build**: Rebuild if UI isn’t loading: `cd frontend && npm run build`
3. **Port already in use**: The app will try to use port 3000
4. **Database issues**: Delete `database.sqlite` file and restart
## API Endpoints
- `POST /api/auth/login` - User authentication
- `POST /api/auth/register` - User registration
- `POST /api/snippets` - Create/update snippets
- `GET /api/snippets/{id}` - Retrieve a specific snippet
## Contributing
This is a demo application for educational purposes. If you find any bugs or want to suggest improvements, please open an issue or submit a pull request.