我正在尝试使用PUT REST Api上传文件，但我得到了ConnectionResetError。我已尝试将urllib.request.Request()与urllib.request.urlopen()以及requests.put()一起使用。
当我使用cURL时它正常工作：
$ curl -X PUT http://localhost:5000/root.bar/test/1.0/jre -H 'Content-Type: application/java-archive' -H 'Content-Name: bfg-1.12.16.jar' -H 'Authorization: Basic cm9vdDphbHBpbmU=' -d @C:/Users/niklas/Desktop/bfg-1.12.16.jar
代码的重要部分：
headers = {'Content-Type': args.mime, 'Content-Name': args.name}
if args.auth:
headers['Authorization'] = build_basicauth(username, password)
url = args.apiurl.rstrip('/') + '/{}/{}/{}/{}'.format(*parts)
if not urllib.parse.urlparse(url).scheme:
url = 'https://' + url
if args.test:
command = ['curl', '-X', 'PUT', url]
for key, value in headers.items():
command += ['-H', '{}: {}'.format(key, value)]
command += ['-d', '@' + args.file.name]
print('$', ' '.join(map(shlex.quote, command)))
return 0
response = requests.put(url, data=args.file, headers=headers)
print(response)
我错过了cURL正在做什么？
（PS：我也尝试通过传递bytes来使用requests.put()发送data=args.file.read()而不是类似文件的对象
完整的追溯：
$ python -m fatartifacts.web.cli http://localhost:5000 root.bar:test:1.0:jre ~/Desktop/bfg-1.12.16.jar -m application/java-archive -u root:alpine
Traceback (most recent call last):
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\urllib3\connectionpool.py", line 601, in urlopen
chunked=chunked)
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\urllib3\connectionpool.py", line 357, in _make_request
conn.request(method, url, **httplib_request_kw)
File "c:\users\niklas\appdata\local\programs\python\python36\Lib\http\client.py", line 1239, in request
self._send_request(method, url, body, headers, encode_chunked)
File "c:\users\niklas\appdata\local\programs\python\python36\Lib\http\client.py", line 1285, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "c:\users\niklas\appdata\local\programs\python\python36\Lib\http\client.py", line 1234, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "c:\users\niklas\appdata\local\programs\python\python36\Lib\http\client.py", line 1065, in _send_output
self.send(chunk)
File "c:\users\niklas\appdata\local\programs\python\python36\Lib\http\client.py", line 986, in send
self.sock.sendall(data)
ConnectionResetError: [WinError 10054] An existing connection was forcibly closed by the remote host
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\requests\adapters.py", line 440, in send
timeout=timeout
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\urllib3\connectionpool.py", line 639, in urlopen
_stacktrace=sys.exc_info()[2])
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\urllib3\util\retry.py", line 357, in increment
raise six.reraise(type(error), error, _stacktrace)
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\urllib3\packages\six.py", line 685, in reraise
raise value.with_traceback(tb)
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\urllib3\connectionpool.py", line 601, in urlopen
chunked=chunked)
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\urllib3\connectionpool.py", line 357, in _make_request
conn.request(method, url, **httplib_request_kw)
File "c:\users\niklas\appdata\local\programs\python\python36\Lib\http\client.py", line 1239, in request
self._send_request(method, url, body, headers, encode_chunked)
File "c:\users\niklas\appdata\local\programs\python\python36\Lib\http\client.py", line 1285, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "c:\users\niklas\appdata\local\programs\python\python36\Lib\http\client.py", line 1234, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "c:\users\niklas\appdata\local\programs\python\python36\Lib\http\client.py", line 1065, in _send_output
self.send(chunk)
File "c:\users\niklas\appdata\local\programs\python\python36\Lib\http\client.py", line 986, in send
self.sock.sendall(data)
urllib3.exceptions.ProtocolError: ('Connection aborted.', ConnectionResetError(10054, 'An existing connection was forcibly closed by the remote host', None, 10054, None))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "c:\users\niklas\appdata\local\programs\python\python36\Lib\runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "c:\users\niklas\appdata\local\programs\python\python36\Lib\runpy.py", line 85, in _run_code
exec(code, run_globals)
File "C:\Users\niklas\repos\fatartifacts\fatartifacts\web\cli.py", line 106, in <module>
main_and_exit()
File "C:\Users\niklas\repos\fatartifacts\fatartifacts\web\cli.py", line 102, in main_and_exit
sys.exit(main())
File "C:\Users\niklas\repos\fatartifacts\fatartifacts\web\cli.py", line 97, in main
response = requests.put(url, data=args.file, headers=headers)
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\requests\api.py", line 126, in put
return request('put', url, data=data, **kwargs)
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\requests\api.py", line 58, in request
return session.request(method=method, url=url, **kwargs)
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\requests\sessions.py", line 508, in request
resp = self.send(prep, **send_kwargs)
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\requests\sessions.py", line 618, in send
r = adapter.send(request, **kwargs)
File "C:\Users\niklas\.virtualenvs\fatartifacts-LoWBpE4v\lib\site-packages\requests\adapters.py", line 490, in send
raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', ConnectionResetError(10054, 'An existing connection was forcibly closed by the remote host', None, 10054, None))
REST API由flask和flask-restful实现。
urllib.request，requests）flask.abort() 答案 0 :(得分：1)
问题是Flask REST API没有使用随请求发送的所有内容。在abort(403)被读取之前，Flask应用程序调用了flask.request.stream。
由于我不想在请求被拒绝时读取所有数据，我发现调用request.environ['wsgi.input'].close()关闭流而不先读取内容，这样可以避免ConnectionResetError在客户端。
def close_input_stream(func):
@functools.wraps(func)
def wrapper(*a, **kw):
try:
return func(*a, **kw)
finally:
fp = request.environ.get('wsgi.input')
if fp:
fp.close()
return wrapper