python-upload

upload.py

from http.server import HTTPServer, BaseHTTPRequestHandler
import os
import cgi

UPLOAD_DIR = "uploads"
os.makedirs(UPLOAD_DIR, exist_ok=True)


class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.end_headers()
        self.wfile.write(
            b'Upload server is running. Use POST /upload to send a file.')

    def do_POST(self):
        if self.path != '/upload':
            self.send_response(404)
            self.end_headers()
            self.wfile.write(b'Not found.')
            return

        content_type = self.headers.get('Content-Type')
        if not content_type or 'multipart/form-data' not in content_type:
            self.send_response(400)
            self.end_headers()
            self.wfile.write(b'Invalid content type.')
            return

        form = cgi.FieldStorage(
            fp=self.rfile,
            headers=self.headers,
            environ={'REQUEST_METHOD': 'POST',
                     'CONTENT_TYPE': self.headers['Content-Type']},
        )

        if 'file' not in form:
            self.send_response(400)
            self.end_headers()
            self.wfile.write(b'Missing file field.')
            return

        file_item = form['file']
        filename = os.path.basename(file_item.filename)
        filepath = os.path.join(UPLOAD_DIR, filename)

        with open(filepath, 'wb') as f:
            f.write(file_item.file.read())

        self.send_response(200)
        self.end_headers()
        self.wfile.write(
            f'File "{filename}" uploaded successfully.\n'.encode())


if __name__ == '__main__':
    server_address = ('', 8080)
    httpd = HTTPServer(server_address, SimpleHTTPRequestHandler)
    print("Server running on http://localhost:8080 ...")
    httpd.serve_forever()