How to recieve HTTP file upload in WSGI?

Question

main.py:

def app(env, start_response):
    print(env)
    print("")
    file = open("index.html", 'rb')
    data = file.read()
    file.close()
    start_response("200 OK", [
        ("Content-Type", "html"),
        ("Content-Length", str(len(data)))
    ])
    return [data]

index.html form:

<form action="/" method="POST" enctype="multipart/form-data">
  <input type="file" name="fileToUpload" id="fileToUpload">
  <input type="submit" value="Submit">
</form>

Now in GET method I can see the inputs: 'REQUEST_METHOD': 'GET', 'QUERY_STRING': 'fname=John&lname=Doe&fileToUpload=a.dat'

But in POST method it shows:

{'wsgi.errors': <gunicorn.http.wsgi.WSGIErrorsWrapper object at 0x101c77df0>, 'wsgi.version': (1, 0), 'wsgi.multithread': False, 'wsgi.multiprocess': False, 'wsgi.run_once': False, 'wsgi.file_wrapper': <class 'gunicorn.http.wsgi.FileWrapper'>, 'wsgi.input_terminated': True, 'SERVER_SOFTWARE': 'gunicorn/20.1.0', 'wsgi.input': <gunicorn.http.body.Body object at 0x101c77eb0>, 'gunicorn.socket': <socket.socket fd=9, family=AddressFamily.AF_INET, type=SocketKind.SOCK_STREAM, proto=0, laddr=('127.0.0.1', 8000), raddr=('127.0.0.1', 62808)>, 'REQUEST_METHOD': 'POST', 'QUERY_STRING': '', 'RAW_URI': '/', 'SERVER_PROTOCOL': 'HTTP/1.1', 'HTTP_HOST': '127.0.0.1:8000', 'HTTP_CONNECTION': 'keep-alive', 'CONTENT_LENGTH': '406', 'HTTP_CACHE_CONTROL': 'max-age=0', 'HTTP_SEC_CH_UA': '" Not A;Brand";v="99", "Chromium";v="100", "Google Chrome";v="100"', 'HTTP_SEC_CH_UA_MOBILE': '?0', 'HTTP_SEC_CH_UA_PLATFORM': '"macOS"', 'HTTP_UPGRADE_INSECURE_REQUESTS': '1', 'HTTP_ORIGIN': 'http://127.0.0.1:8000', 'CONTENT_TYPE': 'multipart/form-data; boundary=----WebKitFormBoundaryCTLouAc9Ex5kWzjB', 'HTTP_USER_AGENT': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.88 Safari/537.36', 'HTTP_ACCEPT': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9', 'HTTP_SEC_FETCH_SITE': 'same-origin', 'HTTP_SEC_FETCH_MODE': 'navigate', 'HTTP_SEC_FETCH_USER': '?1', 'HTTP_SEC_FETCH_DEST': 'document', 'HTTP_REFERER': 'http://127.0.0.1:8000/', 'HTTP_ACCEPT_ENCODING': 'gzip, deflate, br', 'HTTP_ACCEPT_LANGUAGE': 'en-US,en;q=0.9', 'wsgi.url_scheme': 'http', 'REMOTE_ADDR': '127.0.0.1', 'REMOTE_PORT': '62808', 'SERVER_NAME': '127.0.0.1', 'SERVER_PORT': '8000', 'PATH_INFO': '/', 'SCRIPT_NAME': ''}

It shows content-length and boundary , but does not show the actual data uploaded like how it should be as given in https://stackoverflow.com/a/8660740/11717179

How to recieve HTTP file upload in WSGI?

0 Answers0