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base.py
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base.py
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import requests
import nomad.api.exceptions
from requests.packages.urllib3.exceptions import InsecureRequestWarning
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
class Requester(object):
ENDPOINT = ""
def __init__(self, address=None, uri='http://127.0.0.1', port=4646, namespace=None, token=None, timeout=5, version='v1', verify=False, cert=(), region=None, **kwargs):
self.uri = uri
self.port = port
self.namespace = namespace
self.token = token
self.timeout = timeout
self.version = version
self.verify = verify
self.cert = cert
self.address = address
self.session = requests.Session()
self.region = region
def _endpoint_builder(self, *args):
if args:
u = "/".join(args)
return "{v}/".format(v=self.version) + u
def _required_namespace(self, endpoint):
required_namespace = [
"job",
"jobs",
"allocation",
"allocations",
"deployment",
"deployments",
"acl",
"client",
"node"
]
# split 0 -> Api Version
# split 1 -> Working Endpoint
ENDPOINT_NAME = 1
endpoint_split = endpoint.split("/")
try:
required = endpoint_split[ENDPOINT_NAME] in required_namespace
except:
required = False
return required
def _url_builder(self, endpoint):
url = self.address
if self.address is None:
url = "{uri}:{port}".format(uri=self.uri, port=self.port)
url = "{url}/{endpoint}".format(url=url, endpoint=endpoint)
return url
def _query_string_builder(self, endpoint):
qs = {}
if self.namespace and self._required_namespace(endpoint):
qs["namespace"] = self.namespace
if self.region:
qs["region"] = self.region
return qs
def request(self, *args, **kwargs):
endpoint = self._endpoint_builder(self.ENDPOINT, *args)
response = self._request(
endpoint=endpoint,
method=kwargs.get("method"),
params=kwargs.get("params", None),
data=kwargs.get("data", None),
json=kwargs.get("json", None),
headers=kwargs.get("headers", None),
allow_redirects=kwargs.get("allow_redirects", False)
)
return response
def _request(self, method, endpoint, params=None, data=None, json=None, headers=None, allow_redirects=None):
url = self._url_builder(endpoint)
qs = self._query_string_builder(endpoint)
if params:
params.update(qs)
else:
params = qs
if self.token:
try:
headers["X-Nomad-Token"] = self.token
except TypeError:
headers = {"X-Nomad-Token": self.token}
response = None
try:
method = method.lower()
if method == "get":
response = self.session.get(
url=url,
params=params,
headers=headers,
timeout=self.timeout,
verify=self.verify,
cert=self.cert,
allow_redirects=allow_redirects
)
elif method == "post":
response = self.session.post(
url=url,
params=params,
json=json,
headers=headers,
data=data,
timeout=self.timeout,
verify=self.verify,
cert=self.cert,
allow_redirects=allow_redirects
)
elif method == "put":
response = self.session.put(
url=url,
params=params,
json=json,
headers=headers,
data=data,
verify=self.verify,
cert=self.cert,
timeout=self.timeout
)
elif method == "delete":
response = self.session.delete(
url=url,
params=params,
headers=headers,
verify=self.verify,
cert=self.cert,
timeout=self.timeout
)
if response.ok:
return response
elif response.status_code == 400:
raise nomad.api.exceptions.BadRequestNomadException(response)
elif response.status_code == 403:
raise nomad.api.exceptions.URLNotAuthorizedNomadException(response)
elif response.status_code == 404:
raise nomad.api.exceptions.URLNotFoundNomadException(response)
else:
raise nomad.api.exceptions.BaseNomadException(response)
except requests.RequestException as error:
raise nomad.api.exceptions.BaseNomadException(error)