Python HTTP Server/Client: Remote end closed connection without response error - python

I made simple HTTP Server using BaseHTTPRequestHandler. The problem is, that when I want to post some data using requests from client, I get ConnectionError. I did simple request from requests lib documentation. Also interesting thing is, that HTTP Server will receive data from client and print it to console. I don't understand how its possible.
Client:
def post_data():
"""Client method"""
json_data = {
'sender': 'User',
'receiver': 'MY_SERVER',
'message': 'Hello server! Sending some data.'}
data_headers = {'Content-type': 'application/json', 'Accept': 'text/plain'}
data_payload = json.dumps(json_data)
try:
post = requests.post('http://localhost:8080/post', data=data_payload,
headers=data_headers)
print(post.status_code)
except ConnectionError as e:
print("CONNECTION ERROR: ")
print(e)
HTTP Server:
def do_POST(self):
"""Server method"""
self.send_response(200)
print("Receiving new data ...")
content_length = int(self.headers['Content-Length'])
post_data = self.rfile.read(content_length)
print(post_data)
Server result:
C:\Users\mypc\Projects\PythonFiles\httpserver>python server.py
Fri Jan 5 01:09:12 2018: HTTP Server started on port 8080.
127.0.0.1 - - [05/Jan/2018 01:09:21] "POST /post HTTP/1.1" 200 -
Receiving new data ...
b'{"sender": "User", "receiver": "MY_SERVER", "message": "Hello server! Sending some data."}'
Client result:
C:\Users\mypc\Projects\PythonFiles\httpserver>python client.py
CONNECTION ERROR:
('Connection aborted.', RemoteDisconnected('Remote end closed connection without response',))
C:\Users\mypc\Projects\PythonFiles\httpserver>
Error without exception block:
Traceback (most recent call last):
File "C:\Python36\lib\site-packages\urllib3\connectionpool.py", line 601, in urlopen
chunked=chunked)
File "C:\Python36\lib\site-packages\urllib3\connectionpool.py", line 387, in _make_request
six.raise_from(e, None)
File "<string>", line 2, in raise_from
File "C:\Python36\lib\site-packages\urllib3\connectionpool.py", line 383, in _make_request
httplib_response = conn.getresponse()
File "C:\Python36\lib\http\client.py", line 1331, in getresponse
response.begin()
File "C:\Python36\lib\http\client.py", line 297, in begin
version, status, reason = self._read_status()
File "C:\Python36\lib\http\client.py", line 266, in _read_status
raise RemoteDisconnected("Remote end closed connection without"
http.client.RemoteDisconnected: Remote end closed connection without response
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Python36\lib\site-packages\requests\adapters.py", line 440, in send
timeout=timeout
File "C:\Python36\lib\site-packages\urllib3\connectionpool.py", line 639, in urlopen
_stacktrace=sys.exc_info()[2])
File "C:\Python36\lib\site-packages\urllib3\util\retry.py", line 357, in increment
raise six.reraise(type(error), error, _stacktrace)
File "C:\Python36\lib\site-packages\urllib3\packages\six.py", line 685, in reraise
raise value.with_traceback(tb)
File "C:\Python36\lib\site-packages\urllib3\connectionpool.py", line 601, in urlopen
chunked=chunked)
File "C:\Python36\lib\site-packages\urllib3\connectionpool.py", line 387, in _make_request
six.raise_from(e, None)
File "<string>", line 2, in raise_from
File "C:\Python36\lib\site-packages\urllib3\connectionpool.py", line 383, in _make_request
httplib_response = conn.getresponse()
File "C:\Python36\lib\http\client.py", line 1331, in getresponse
response.begin()
File "C:\Python36\lib\http\client.py", line 297, in begin
version, status, reason = self._read_status()
File "C:\Python36\lib\http\client.py", line 266, in _read_status
raise RemoteDisconnected("Remote end closed connection without"
urllib3.exceptions.ProtocolError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response',))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "client.py", line 137, in <module>
start_parser()
File "client.py", line 101, in start_parser
send_requests(args.get, args.post)
File "client.py", line 51, in send_requests
post_data()
File "client.py", line 129, in post_data
headers=data_headers)
File "C:\Python36\lib\site-packages\requests\api.py", line 112, in post
return request('post', url, data=data, json=json, **kwargs)
File "C:\Python36\lib\site-packages\requests\api.py", line 58, in request
return session.request(method=method, url=url, **kwargs)
File "C:\Python36\lib\site-packages\requests\sessions.py", line 508, in request
resp = self.send(prep, **send_kwargs)
File "C:\Python36\lib\site-packages\requests\sessions.py", line 618, in send
r = adapter.send(request, **kwargs)
File "C:\Python36\lib\site-packages\requests\adapters.py", line 490, in send
raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response',))

It looks like the server is terminating the connection early without sending a full response. I've skimmed the docs and I think this is the problem (emphasis added):
send_response(code, message=None)
Adds a response header to the
headers buffer and logs the accepted request. The HTTP response line
is written to the internal buffer, followed by Server and Date
headers. The values for these two headers are picked up from the
version_string() and date_time_string() methods, respectively. If the
server does not intend to send any other headers using the
send_header() method, then send_response() should be followed by an
end_headers() call.
Changed in version 3.3: Headers are stored to an internal buffer and
end_headers() needs to be called explicitly.
So you probably just need to add the call to end_headers. If you were reading an old example (prior to Python 3.3) this wouldn't have been needed.

You can just put end_headers as Peter Gibson said
self.send_header('Content-Type', 'blabla' )
self.end_headers()

Related

ReadTimeoutError - Why is this occurring?

I encounter the following ReadTimeoutError, the request not responding and not giving out any output (in the state of runnning non-stop):
Traceback (most recent call last):
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connectionpool.py", line 449, in _make_request
six.raise_from(e, None)
File "<string>", line 3, in raise_from
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connectionpool.py", line 444, in _make_request
httplib_response = conn.getresponse()
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\http\client.py", line 1374, in getresponse
response.begin()
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\http\client.py", line 318, in begin
version, status, reason = self._read_status()
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\http\client.py", line 279, in _read_status
line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\socket.py", line 705, in readinto
return self._sock.recv_into(b)
TimeoutError: timed out
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\adapters.py", line 440, in send
resp = conn.urlopen(
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connectionpool.py", line 785, in urlopen
retries = retries.increment(
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\util\retry.py", line 550, in increment
raise six.reraise(type(error), error, _stacktrace)
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\packages\six.py", line 770, in reraise
raise value
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connectionpool.py", line 703, in urlopen
httplib_response = self._make_request(
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connectionpool.py", line 451, in _make_request
self._raise_timeout(err=e, url=url, timeout_value=read_timeout)
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\urllib3\connectionpool.py", line 340, in _raise_timeout
raise ReadTimeoutError(
urllib3.exceptions.ReadTimeoutError: HTTPConnectionPool(host='127.0.0.1', port=4990): Read timed out. (read timeout=10)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\user\Downloads\getSupplierName-api\test.py", line 35, in <module>
response = requests.request("PUT", url, headers=headers, data=payload, timeout=10)
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\api.py", line 61, in request
return session.request(method=method, url=url, **kwargs)
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\sessions.py", line 529, in request
resp = self.send(prep, **send_kwargs)
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\sessions.py", line 645, in send
r = adapter.send(request, **kwargs)
File "C:\Users\user\AppData\Local\Programs\Python\Python310\lib\site-packages\requests\adapters.py", line 532, in send
raise ReadTimeout(e, request=request)
requests.exceptions.ReadTimeout: HTTPConnectionPool(host='127.0.0.1', port=4990): Read timed out. (read timeout=10)
The request code is as follows:
import requests
import json
import glob
url = "..."
headers = {
'Content-Type': 'application/json'
}
path = "..../*.pdf"
list_of_path = glob.glob(path)
print("Number of files:", len(list_of_path))
for i in list_of_path:
print(i)
payload = json.dumps({
"file_path": i,
"company_id": "abcde",
})
response = requests.request("PUT", url, headers=headers, data=payload, timeout=10)
print(response.json()['payload'])
Not sure why this is happening. The same issue happens with or without running in virtualenv. It was running fine when I ran it (many times) without any virtualenv, then I created the virtualenv on my machine and ran it again, it's working fine. But on the next day, the error occurs when I try to run it.
Appreciate any help, many thanks!
Looks to me that the service that was listening for at port 4990 is not listening anymore. I suppose you know what service this is, so I recommend to check if it's running.
After you start the service that listen at port 4990, there are two ways to confirm you the port is really open and listening:
If you are using linux, you can check what ports are listening in your machine with the following command:
sudo lsof -i -P -n | grep LISTEN
You can try to connect to the port 4990 using telnet:
telnet 127.0.0.1 4990
If the telnet works, the output should be something like this:
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.

Owasp Zap module in python not working properly

I have created a script to perform an spider scan using owasp zap module from python. However, when start the script I get the following errors:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 670, in urlopen
httplib_response = self._make_request(
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 426, in _`enter code here`make_request
six.raise_from(e, None)
File "<string>", line 3, in raise_from
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 421, in _make_request
httplib_response = conn.getresponse()
File "/usr/lib/python3.9/http/client.py", line 1347, in getresponse
response.begin()
File "/usr/lib/python3.9/http/client.py", line 307, in begin
version, status, reason = self._read_status()
File "/usr/lib/python3.9/http/client.py", line 276, in _read_status
raise RemoteDisconnected("Remote end closed connection without"
http.client.RemoteDisconnected: Remote end closed connection without response
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/requests/adapters.py", line 439, in send
resp = conn.urlopen(
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 724, in urlopen
retries = retries.increment(
File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 439, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='127.0.0.1', port=8080): Max retries exceeded with url: http://zap/JSON/spider/action/scan/?apikey=&url=http%3A%2F%2F10.0.2.23 (Caused by ProxyError('Cannot connect to proxy.', RemoteDisconnected('Remote end closed connection without response')))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/kali/Desktop/vuln_discovery/main.py", line 27, in <module>
spider_scan(url)
File "/home/kali/Desktop/vuln_discovery/zap.py", line 12, in spider_scan
zap.spider.scan(url=url)
File "/home/kali/.local/lib/python3.9/site-packages/zapv2/spider.py", line 215, in scan
return six.next(six.itervalues(self.zap._request(self.zap.base + 'spider/action/scan/', params)))
File "/home/kali/.local/lib/python3.9/site-packages/zapv2/__init__.py", line 192, in _request
data = self._request_api(url, get)
File "/home/kali/.local/lib/python3.9/site-packages/zapv2/__init__.py", line 172, in _request_api
response = self.session.get(url, params=query, proxies=self.__proxies, verify=False)
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 543, in get
return self.request('GET', url, **kwargs)
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 530, in request
resp = self.send(prep, **send_kwargs)
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 643, in send
r = adapter.send(request, **kwargs)
File "/usr/lib/python3/dist-packages/requests/adapters.py", line 510, in send
raise ProxyError(e, request=request)
enter code here
requests.exceptions.ProxyError: HTTPConnectionPool(host='127.0.0.1', port=8080): Max retries exceeded with url: http://zap/JSON/spider/action/scan/?apikey=&url=http%3A%2F%2F10.0.2.23 (Caused by ProxyError('Cannot connect to proxy.', RemoteDisconnected('Remote end closed connection without response')))`
I am not sure if that helps but I just had a similar problem with similar errors. For me the Port was not set properly. Maybe you can check the port with
sudo netstat -tunlp if the port there is really

Python HTTP GET raise Exception after 300 seconds from Docker container

I'm trying to GET data from an external service using Python from a Docker container.
I need to reach two different endpoints, let's say:
endpointA = "https://myhost:1234/resA" # Requests take about 1 minute to complete
endpointB = "https://myhost:1234/resB" # Requests take about 8 minutes to complete
I tried to use two different libraries, Requests:
import requests
headers = {'Authorization': 'Basic XXXXXXXXXXXXXXXXXXXXXX', 'Content-Type': 'application/json'}
response = requests.get(endpointA, verify=False, headers=headers)
and Pycurl:
import pycurl
headers = ['Authorization: Basic XXXXXXXXXXXXXXXXXXXXXX', 'Content-Type: application/json']
buffer = BytesIO()
c = pycurl.Curl()
c.setopt(c.VERBOSE, True)
c.setopt(c.URL, endpointA)
c.setopt(c.WRITEDATA, buffer)
c.setopt(c.SSL_VERIFYPEER, False)
c.setopt(c.SSL_VERIFYHOST, False)
c.setopt(c.HTTPHEADER, headers)
c.perform()
c.close()
My code runs without problems from local (both endpointA and endpointB return).
When run inside a Docker container, requests to endpointA work but request to endpointB raise exceptions after 300 seconds:
in the case of requests:
Traceback (most recent call last):
File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 670, in urlopen
httplib_response = self._make_request(
File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 426, in _make_request
six.raise_from(e, None)
File "<string>", line 3, in raise_from
File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 421, in _make_request
httplib_response = conn.getresponse()
File "/usr/local/lib/python3.8/http/client.py", line 1347, in getresponse
response.begin()
File "/usr/local/lib/python3.8/http/client.py", line 307, in begin
version, status, reason = self._read_status()
File "/usr/local/lib/python3.8/http/client.py", line 276, in _read_status
raise RemoteDisconnected("Remote end closed connection without"
http.client.RemoteDisconnected: Remote end closed connection without response
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.8/site-packages/requests/adapters.py", line 439, in send
resp = conn.urlopen(
File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 726, in urlopen
retries = retries.increment(
File "/usr/local/lib/python3.8/site-packages/urllib3/util/retry.py", line 403, in increment
raise six.reraise(type(error), error, _stacktrace)
File "/usr/local/lib/python3.8/site-packages/urllib3/packages/six.py", line 734, in reraise
raise value.with_traceback(tb)
File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 670, in urlopen
httplib_response = self._make_request(
File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 426, in _make_request
six.raise_from(e, None)
File "<string>", line 3, in raise_from
File "/usr/local/lib/python3.8/site-packages/urllib3/connectionpool.py", line 421, in _make_request
httplib_response = conn.getresponse()
File "/usr/local/lib/python3.8/http/client.py", line 1347, in getresponse
response.begin()
File "/usr/local/lib/python3.8/http/client.py", line 307, in begin
version, status, reason = self._read_status()
File "/usr/local/lib/python3.8/http/client.py", line 276, in _read_status
raise RemoteDisconnected("Remote end closed connection without"
urllib3.exceptions.ProtocolError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))
in the case of pycurl:
Traceback (most recent call last):
File "test.py", line 230, in get_data
c.perform()
pycurl.error: (52, 'Empty reply from server')
This only happens from Docker, as from my console everything works fine.
I tried both python:3.6 and python:3.8 Docker images.
I also tried to cURL both endpoints from inside the container and the server replies correctly.
You can verify whether docker is terminating the connection by using nc -l outside the container and nc in the container to connect to the first nc, then leaving them both alone for 10 minutes and then sending something to verify the connection is still up.
To troubleshoot pycurl, see http://pycurl.io/docs/latest/troubleshooting.html#transfer-related-issues.

PythonAnywhere requests session raising exception 'connection aborted'

I am trying to launch my script to PA and while it works locally it does not work on PA and I cannot figure out why. I have the paid version of PA so I can access this site that is not whitelisted. Here is my script:
with requests.Session() as session:
# initates the login session
if os.path.exists(document_report + '.pdf'):
# initates the login session
post = session.post(POST_LOGIN_URL, data=payload, headers = dict(referrer = 'https://www.example.com/loginpage'))
#This URL is the page you actually want to pull down with requests.
REQUEST_URL = f'https://www.example.com/{stuff}/{document}'
#gets the request URL
r = session.get(REQUEST_URL)
# saves to directory
with open('./digests/1.pdf', 'wb') as j:
j.write(r.content)
j.close()
else:
post = session.post(POST_LOGIN_URL, data=payload, headers = dict(referrer = 'https://www.example.com/loginpage'))
#This URL is the page you actually want to pull down with requests.
REQUEST_URL = f'https://www.example.com/{stuff}/{document}'
#gets the request URL
r = session.get(REQUEST_URL)
# saves to directory
with open(document_report + '.pdf', 'wb') as j:
j.write(r.content)
j.close()
When I run the code, I get the following message:
Traceback (most recent call last):
File "/usr/lib/python3.7/site-packages/urllib3/connectionpool.py", line 600, in urlopen
chunked=chunked)
File "/usr/lib/python3.7/site-packages/urllib3/connectionpool.py", line 384, in _make_request
six.raise_from(e, None)
File "<string>", line 2, in raise_from
File "/usr/lib/python3.7/site-packages/urllib3/connectionpool.py", line 380, in _make_request
httplib_response = conn.getresponse()
File "/usr/lib/python3.7/http/client.py", line 1344, in getresponse
response.begin()
File "/usr/lib/python3.7/http/client.py", line 306, in begin
version, status, reason = self._read_status()
File "/usr/lib/python3.7/http/client.py", line 275, in _read_status
raise RemoteDisconnected("Remote end closed connection without"
http.client.RemoteDisconnected: Remote end closed connection without response
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.7/site-packages/requests/adapters.py", line 449, in send
timeout=timeout
File "/usr/lib/python3.7/site-packages/urllib3/connectionpool.py", line 638, in urlopen
_stacktrace=sys.exc_info()[2])
File "/usr/lib/python3.7/site-packages/urllib3/util/retry.py", line 368, in increment
raise six.reraise(type(error), error, _stacktrace)
File "/usr/lib/python3.7/site-packages/urllib3/packages/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/usr/lib/python3.7/site-packages/urllib3/connectionpool.py", line 600, in urlopen
chunked=chunked)
File "/usr/lib/python3.7/site-packages/urllib3/connectionpool.py", line 384, in _make_request
six.raise_from(e, None)
File "<string>", line 2, in raise_from
File "/usr/lib/python3.7/site-packages/urllib3/connectionpool.py", line 380, in _make_request
httplib_response = conn.getresponse()
File "/usr/lib/python3.7/http/client.py", line 1344, in getresponse
response.begin()
File "/usr/lib/python3.7/http/client.py", line 306, in begin
version, status, reason = self._read_status()
File "/usr/lib/python3.7/http/client.py", line 275, in _read_status
raise RemoteDisconnected("Remote end closed connection without"
urllib3.exceptions.ProtocolError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/legalaide/emailProcessorV2.py", line 567, in <module>
post = session.post(POST_LOGIN_URL, data=payload, headers = dict(referrer = 'https://www.example.com/loginpage'))
File "/usr/lib/python3.7/site-packages/requests/sessions.py", line 581, in post
return self.request('POST', url, data=data, json=json, **kwargs)
File "/usr/lib/python3.7/site-packages/requests/sessions.py", line 533, in request
resp = self.send(prep, **send_kwargs)
File "/usr/lib/python3.7/site-packages/requests/sessions.py", line 646, in send
r = adapter.send(request, **kwargs)
File "/usr/lib/python3.7/site-packages/requests/adapters.py", line 498, in send
raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))
I tried it again locally, and it still works. Any insight into a solution would be amazing!

Sending a JSON Post using requests in python 3.7.2

So im trying to use python to send a post to a url, i have basically copied everything from my network console in firefox yet i can't get it to work.
import requests
import json
url = 'https://www.example.com/example?handle'
cookie = {'UID':'b56f14d8-02b1-4ae8-ad5e-3485cf0abdbe'}
data ={'example':'example'}
headers = {'Accept':'*/*',
'Accept-Encoding':'gzip, deflate, br',
'Accept-Language':'en-US,en;q=0.5',
'Connection':'keep-alive',
'Content-Length':'78',
'Content-Type':'text/plain;charset=UTF-8',
'Cookie':'UID=b56f14d8-02b1-4ae8-ad5e-3485cf0abdbe',
'Host':'www.example.com',
'Referer':'https:/example.com/example',
'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0'}
req = requests.post(url, cookies=cookie, params=json.dumps(data), headers=headers)
print(req)
I have replaced the actual data and url with example.
After running this, i get a big long error:
Traceback (most recent call last):
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32 \lib\site-packages\urllib3\connectionpool.py", line 600, in urlopen
chunked=chunked)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\urllib3\connectionpool.py", line 384, in _make_request
six.raise_from(e, None)
File "<string>", line 2, in raise_from
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\urllib3\connectionpool.py", line 380, in _make_request
httplib_response = conn.getresponse()
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\http\client.py", line 1321, in getresponse
response.begin()
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\http\client.py", line 296, in begin
version, status, reason = self._read_status()
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\http\client.py", line 257, in _read_status
line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\socket.py", line 589, in readinto
return self._sock.recv_into(b)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\ssl.py", line 1052, in recv_into
return self.read(nbytes, buffer)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\ssl.py", line 911, in read
return self._sslobj.read(len, buffer)
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\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\requests\adapters.py", line 449, in send
timeout=timeout
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\urllib3\connectionpool.py", line 638, in urlopen
_stacktrace=sys.exc_info()[2])
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\urllib3\util\retry.py", line 367, in increment
raise six.reraise(type(error), error, _stacktrace)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\urllib3\packages\six.py", line 685, in reraise
raise value.with_traceback(tb)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\urllib3\connectionpool.py", line 600, in urlopen
chunked=chunked)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\urllib3\connectionpool.py", line 384, in _make_request
six.raise_from(e, None)
File "<string>", line 2, in raise_from
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\urllib3\connectionpool.py", line 380, in _make_request
httplib_response = conn.getresponse()
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\http\client.py", line 1321, in getresponse
response.begin()
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\http\client.py", line 296, in begin
version, status, reason = self._read_status()
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\http\client.py", line 257, in _read_status
line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\socket.py", line 589, in readinto
return self._sock.recv_into(b)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\ssl.py", line 1052, in recv_into
return self.read(nbytes, buffer)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\ssl.py", line 911, in read
return self._sslobj.read(len, buffer)
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/Kaiser/Documents/python ddoser.py", line 19, in <module>
req = requests.post(url, cookies=cookie, params=json.dumps(data).encode('UTF-8'), headers=headers)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\requests\api.py", line 116, in post
return request('post', url, data=data, json=json, **kwargs)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\requests\api.py", line 60, in request
return session.request(method=method, url=url, **kwargs)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\requests\sessions.py", line 533, in request
resp = self.send(prep, **send_kwargs)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\requests\sessions.py", line 646, in send
r = adapter.send(request, **kwargs)
File "C:\Users\Kaiser\AppData\Local\Programs\Python\Python37-32\lib\site-packages\requests\adapters.py", line 498, 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))
Does anyone know about what i could be doing wrong. Sorry if its a rookie mistake.
This error occurs when the web server rejects your connection. A web server can reject your connection for various reasons. Most likely, you did not properly mimic the HTTP request the web server was expecting.
You do not have to manually fill in all of the HTTP parameters such content length. The library automatically fills in these fields for you. If you plan to make subsequent HTTP requests using the same cookies, consider creating a session object, which stores and handles the cookies for you:
session = requests.Session()
session.post(url, data=payload)
Also, realize the difference between the data parameter and the params parameter. Since you are sending a POST request, chances are that the web server is expecting the data to be passed via the data parameter (which places the data in the request body rather than the query string in the URL). Another reason a web server may reject your connection is because you sent a HTTP request rather than a HTTPS request, so always ensure everything is correct on your end.
Below the code that i use to send post information and read the response,
import urllib2
from urllib2 import URLError, HTTPError
import urllib
import ssl
mydata=[('funcion',funcion),('codigo',codigo)] #The first is the var name the second is the value
headers = {"Content-type", "application/x-www-form-urlencoded","User-Agent", "Mozilla/5.0",}
handler=urllib2.HTTPHandler(debuglevel=1)
opener = urllib2.build_opener(handler)
urllib2.install_opener(opener)
mydata=urllib.urlencode(mydata)
path=url #the url you want to POST to
ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE #In my case i need accept certificates
req=urllib2.Request(path, mydata)
req.add_header("Content-type", "application/x-www-form-urlencoded")
req.add_header("User-Agent", "Mozilla/5.0")
page=urllib2.urlopen(req).read()

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