HTTPServer is a simple implementation of an HTTP server in Python, designed for educational purposes. This server is capable of handling basic HTTP GET requests, serving static files, and responding to different HTTP status codes. The server is implemented using the socket library in Python.
The TCPServer class serves as a generic TCP server and provides a foundation for the HTTP server. It initializes a socket, binds it to a specified host and port, and listens for incoming connections. The start method of TCPServer listens for incoming connections and, upon connection, handles the request using the handle_request method.
The HTTPServer class is a subclass of TCPServer and is specifically tailored for handling HTTP requests. It overrides the handle_request method to determine the appropriate action based on the request method (GET, POST, etc.). The server supports basic HTTP status codes (200, 404, 403, 501) and has corresponding handlers for each.
The HTTPRequest class is responsible for parsing incoming HTTP requests. It extracts information such as the request method, URI, and HTTP version from the raw request data.
The server includes a handler for GET requests (handle_GET). It processes the requested file, checks its existence, determines the MIME type, and sends an appropriate response.
The server includes handlers for specific status codes, such as 404 (Not Found), 403 (Access Forbidden), and 501 (Not Implemented). These handlers generate corresponding response pages.
The code is well-organized and follows a modular structure:
- TCPServer: Generic TCP server for handling connections.
- HTTPServer: Specific implementation for handling HTTP requests, extending the TCPServer class.
- HTTPRequest: Parses incoming HTTP requests and extracts relevant information.
The server responses include HTTP headers such as "Server" and "Content-Type" along with the appropriate status code and response body.
To use the HTTP server, simply create an instance of the HTTPServer class and call the start method. By default, the server listens on 127.0.0.1:8888.
if __name__ == '__main__':
server = HTTPServer()
server.start()