| # |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| |
| import requests |
| |
| from .auth import SpnegoAuth |
| from .models import WrappedJson |
| from .utils import conf_to_xml |
| |
| |
| class LensSessionClient(object): |
| def __init__(self, base_url, username, password, database, conf): |
| self.base_url = base_url + "session/" |
| self.keytab = conf.get('lens.client.authentication.kerberos.keytab') |
| self.principal = conf.get('lens.client.authentication.kerberos.principal') |
| self.ignoreCert = conf.get('lens.client.ssl.ignore.server.cert') |
| self.open(username, password, database, conf) |
| |
| def __getitem__(self, key): |
| if self.ignoreCert == 'true': |
| resp = requests.get(self.base_url + "params", |
| params={'sessionid': self._sessionid, 'key': key}, |
| headers={'accept': 'application/json'}, |
| auth=SpnegoAuth(self.keytab, self.principal), verify=False) |
| else: |
| resp = requests.get(self.base_url + "params", |
| params={'sessionid': self._sessionid, 'key': key}, |
| headers={'accept': 'application/json'}, |
| auth=SpnegoAuth(self.keytab, self.principal)) |
| if resp.ok: |
| params = resp.json(object_hook=WrappedJson) |
| text = params.elements[0] |
| if key in text: |
| text = text[len(key)+1:] |
| return text |
| |
| def open(self, username, password, database, conf): |
| payload = [('username', username), ('password', password), ('sessionconf', conf_to_xml(conf))] |
| if database: |
| payload.append(('database', database)) |
| |
| if self.ignoreCert == 'true': |
| r = requests.post(self.base_url, files=payload, headers={'accept': 'application/xml'}, |
| auth=SpnegoAuth(self.keytab, self.principal), verify=False) |
| else: |
| r = requests.post(self.base_url, files=payload, headers={'accept': 'application/xml'}, |
| auth=SpnegoAuth(self.keytab, self.principal)) |
| r.raise_for_status() |
| self._sessionid = r.text |
| |
| def close(self): |
| if self.ignoreCert == 'true': |
| requests.delete(self.base_url, params={'sessionid': self._sessionid}, |
| auth=SpnegoAuth(self.keytab, self.principal), verify=False) |
| else: |
| requests.delete(self.base_url, params={'sessionid': self._sessionid}, |
| auth=SpnegoAuth(self.keytab, self.principal)) |
| |
| |
| |
