import os
from http.server import SimpleHTTPRequestHandler, HTTPServer
from urllib.parse import urlparse

class JPEGRequestHandler(SimpleHTTPRequestHandler):
    def do_GET(self):
        url = urlparse(self.path)
        path = url.path
        if path.endswith('.jpg'):
            file_path = path[1:]

            if os.path.isfile(file_path):
                self.send_response(200)
                self.send_header('Content-Type', 'image/jpeg')
                self.end_headers()

                with open(file_path, 'rb') as file:
                    self.wfile.write(file.read())
            else:
                self.send_error(404, 'File not found')
        else:
            self.send_error(403, 'Only .jpg files are allowed')

def run(server_class=HTTPServer, handler_class=JPEGRequestHandler, port=8000):
    server_address = ('', port)
    httpd = server_class(server_address, handler_class)
    print(f'Serving JPEGs on port {port}...')
    httpd.serve_forever()

if __name__ == '__main__':
    run()