尝试在接受100-Continue标头后发送Python HTTPConnection内容
问题描述
我一直在尝试调试我继承的Python脚本。它正试图通过HTTPLib将CSV发布到网站上。据我所知，问题在于HTTPLib不能按照python http client stuck on 100 continue处理接收100-Continue响应。与该帖子类似，this"；仅通过Curl工作，但是出于各种原因，我们需要从Python脚本运行它。
我已尝试采用该帖子答案中详细说明的解决方法，但我找不到在接受100-Continue响应后使用该方法提交CSV的方法。
一般流程需要如下所示：
- ->；建立连接
- ->；发送数据，包括"；Expect：100-Continue&Quot；Header，但不包括JSON正文
- <；-接收&q；100-继续(&Q)
- ->；使用相同的连接，发送请求的JSON正文
- <；-在带有其他信息的JSON响应中接收200 OK消息
以下是代码的当前状态，删除了我的10多个其他尝试解决方法的注释残留物：
#!/usr/bin/env python
import os
import ssl
import http.client
import binascii
import logging
import json
#classes taken from https://stackoverflow.com/questions/38084993/python-http-client-stuck-on-100-continue
class ContinueHTTPResponse(http.client.HTTPResponse):
def _read_status(self, *args, **kwargs):
version, status, reason = super()._read_status(*args, **kwargs)
if status == 100:
status = 199
return version, status, reason
def begin(self, *args, **kwargs):
super().begin(*args, **kwargs)
if self.status == 199:
self.status = 100
def _check_close(self, *args, **kwargs):
return super()._check_close(*args, **kwargs) and self.status != 100
class ContinueHTTPSConnection(http.client.HTTPSConnection):
response_class = ContinueHTTPResponse
def getresponse(self, *args, **kwargs):
logging.debug('running getresponse')
response = super().getresponse(*args, **kwargs)
if response.status == 100:
setattr(self, '_HTTPConnection__state', http.client._CS_REQ_SENT)
setattr(self, '_HTTPConnection__response', None)
return response
def uploadTradeIngest(ingestFile, certFile, certPass, host, port, url):
boundary = binascii.hexlify(os.urandom(16)).decode("ascii")
headers = {
"accept": "application/json",
"Content-Type": "multipart/form-data; boundary=%s" % boundary,
"Expect": "100-continue",
}
context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
context.load_cert_chain(certfile=certFile, password=certPass)
connection = ContinueHTTPSConnection(
host, port=port, context=context)
with open(ingestFile, "r") as fh:
ingest = fh.read()
## Create form-data boundary
ingest = "--%s
Content-Disposition: form-data; " % boundary +
"name="file"; filename="%s"" % os.path.basename(ingestFile) +
"
%s
--%s--
" % (ingest, boundary)
print("pre-request")
connection.request(
method="POST", url=url, headers=headers)
print("post-request")
#resp = connection.getresponse()
resp = connection.getresponse()
if resp.status == http.client.CONTINUE:
resp.read()
print("pre-send ingest")
ingest = json.dumps(ingest)
ingest = ingest.encode()
print(ingest)
connection.send(ingest)
print("post-send ingest")
resp = connection.getresponse()
print("response1")
print(resp)
print("response2")
print(resp.read())
print("response3")
return resp.read()
ERROR: Got error: memoryview: a bytes-like object is required, not 'str'
我考虑过改用请求库，但我无法让它使用我的本地证书包来接受站点的证书。我有一个带有加密密钥的完整链，我确实对其进行了解密，但仍然遇到来自请求的持续的SSL_VERIFY错误。如果您有解决我当前请求问题的建议，我也很乐意沿着这条路走下去。
如何使用HTTPLib或请求(或任何其他库)来实现我需要的目标？
解决方案
如果将来有人遇到此问题，我最终使用了一些杂乱无章的方法来解决它。我尝试过HTTPLib、请求和URLLib3，它们都不能处理100-Continue标头，所以.我刚刚通过subprocess.run()函数在Curl周围编写了一个Python包装器，如下所示：
def sendReq(upFile):
sendFile=f"file=@{upFile}"
completed = subprocess.run([
curlPath,
'--cert',
args.cert,
'--key',
args.key,
targetHost,
'-H',
'accept: application/json',
'-H',
'Content-Type: multipart/form-data',
'-H',
'Expect: 100-continue',
'-F',
sendFile,
'-s'
], stdout=subprocess.PIPE, universal_newlines=True)
return completed.stdout
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