API Connection using Python requests_kerberos
Question
This is my first experience trying to connect to an API through python (from windows) using Kerberos authentication. I have been working on it for a few days and my progress has stalled. Here are just a few of the references I have been using:
This is the best tutorial I have found, but it appears to be using a deprecated module rather than the requests_kerberos: http://python-notes.curiousefficiency.org/en/latest/python_kerberos.html
https://pypi.org/project/requests-kerberos/
https://programtalk.com/python-examples/requests_kerberos.HTTPKerberosAuth/
Here is what I have tried so far(I will be masking sensitive information):
import requests
from requests_kerberos import HTTPKerberosAuth
r=requests.get("https://apiServer.hadoop.company.com:23232/templeton/v1/ddl/database/",auth=HTTPSKerberosAuth)
Here is some output:
r.status_code
401
r.headers
{'Content-Length': '1321', 'Set-Cookie': 'hadoop.auth=; Path=/; HttpOnly', 'Server': 'Jetty(7.6.0.v20120127)', 'Cache-Control': 'must-revalidate,no-cache,no-store', 'Content-Type': 'text/html;charset=ISO-8859-1', 'WWW-Authenticate': 'Negotiate'}
r.text
<html>\n<head>\n<meta http-equiv="Content-Type"
content="text/html;charset=ISO
-8859-1"/>\n<title>Error 401 Authentication
required</title>\n</head>\n<body>\n<
h2>HTTP ERROR: 401</h2>\n<p>Problem accessing /templeton/v1/ddl/database/.
Reason:\n<pre> Authentication required</pre></p>\n<hr /><i><small>Powered
by Jetty://</small></i>
Does any of this output at least indicate that the server is getting my request?
If I connect to the API from our linux environment using curl it works just fine and I receive the expected output:
curl --negotiate -i -u : 'http://apiServer.hadoop.company.com:23232/templeton/v1/ddl/database/'
HTTP/1.1 401 Authentication required WWW-Authenticate: Negotiate Set-Cookie: hadoop.auth=; Path=/; HttpOnly Cache-Control: must-revalidate,no-cache,no-store Content-Type: text/html;charset=ISO-8859-1 Content-Length: 1321 Server: Jetty(7.6.0.v20230127)
HTTP/1.1 200 OK WWW-Authenticate: Negotiate YGY1cwVaADAgCAQ+iSTBHoAMCAReiQAQ+sf/nekePw09B/cboDrINa7qn+aENRuw2V+OW7Y7Rk9pOwGa8hrXC3rXKxCk= Set-Cookie: hadoop.auth="u=svc-qa-dsafqa-dev&p=svc-fd-itdflea-dev@hadoop.company.com&t=kerberos&e=15392343251&s=nWk/bFDbHQfsadfewe8PtjAsVHs="; Path=/; HttpOnly Content-Type: application/json Transfer-Encoding: chunked Server: Jetty(7.6.0.v20120127)
I realize that there is a gap in my fundamental understanding of kerberos authentication and I'm trying to bring to do a crash course, but I really just need to be able to connect to this api. Any help is greatly appreciated.
1 answers
solution1
0 2019-03-28 08:30:05
You need to provide an instance of HTTPSKerberosAuth rather than the class itself, so your request should be:
r = requests.get("https://apiServer.com", auth=HTTPSKerberosAuth())
Note the parentheses in HTTPSKerberosAuth() .
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