85 lines
3.1 KiB
Python
85 lines
3.1 KiB
Python
from base64 import b64encode
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import json
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import socket
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from flask import g
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from flask.testing import FlaskClient
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import gssapi
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import pytest
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from requests import Request
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from requests_gssapi import HTTPSPNEGOAuth
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from ceo_common.krb5.utils import get_fwd_tgt
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from .utils import krb5ccname_ctx
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__all__ = ['client']
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@pytest.fixture(scope='session')
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def client(app):
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app_client = app.test_client()
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yield CeodTestClient(app_client)
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class CeodTestClient:
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def __init__(self, app_client: FlaskClient):
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self.client = app_client
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self.syscom_principal = 'ctdalek'
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# this is only used for the HTTPSNEGOAuth
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self.base_url = f'http://{socket.getfqdn()}'
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# for SPNEGO
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self.target_name = gssapi.Name('ceod/' + socket.getfqdn())
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def get_auth(self, principal):
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"""Acquire a HTTPSPNEGOAuth instance for the principal."""
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name = gssapi.Name(principal)
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# the 'store' arg doesn't seem to work for DIR ccaches
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creds = gssapi.Credentials(name=name, usage='initiate')
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auth = HTTPSPNEGOAuth(
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opportunistic_auth=True,
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target_name=self.target_name,
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creds=creds,
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)
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return auth
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def get_headers(self, principal: str, need_cred: bool):
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with krb5ccname_ctx(principal):
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# Get the Authorization header (SPNEGO).
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# The method doesn't matter here because we just need to extract
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# the header using req.prepare().
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req = Request('GET', self.base_url, auth=self.get_auth(principal))
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headers = list(req.prepare().headers.items())
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if need_cred:
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# Get the X-KRB5-CRED header (forwarded TGT).
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cred = b64encode(get_fwd_tgt('ceod/' + socket.getfqdn())).decode()
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headers.append(('X-KRB5-CRED', cred))
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return headers
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def request(self, method: str, path: str, principal: str, need_cred: bool, **kwargs):
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# Make sure that we're not already in a request context, otherwise
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# g will get overridden
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with pytest.raises(RuntimeError):
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'' in g
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if principal is None:
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principal = self.syscom_principal
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headers = self.get_headers(principal, need_cred)
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resp = self.client.open(path, method=method, headers=headers, **kwargs)
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status = int(resp.status.split(' ', 1)[0])
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if resp.headers['content-type'] == 'application/json':
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data = json.loads(resp.data)
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else:
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data = [json.loads(line) for line in resp.data.splitlines()]
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return status, data
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def get(self, path, principal=None, need_cred=True, **kwargs):
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return self.request('GET', path, principal, need_cred, **kwargs)
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def post(self, path, principal=None, need_cred=True, **kwargs):
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return self.request('POST', path, principal, need_cred, **kwargs)
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def patch(self, path, principal=None, need_cred=True, **kwargs):
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return self.request('PATCH', path, principal, need_cred, **kwargs)
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def delete(self, path, principal=None, need_cred=True, **kwargs):
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return self.request('DELETE', path, principal, need_cred, **kwargs)
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