100 lines
4.3 KiB
Python
100 lines
4.3 KiB
Python
import time
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import urllib3
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from urllib3.exceptions import ReadTimeoutError, SSLError as UrllibSSLError
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import warnings
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from .base import Connection
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from ..exceptions import ConnectionError, ImproperlyConfigured, ConnectionTimeout, SSLError
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from ..compat import urlencode
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class Urllib3HttpConnection(Connection):
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"""
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Default connection class using the `urllib3` library and the http protocol.
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:arg http_auth: optional http auth information as either ':' separated
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string or a tuple
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:arg use_ssl: use ssl for the connection if `True`
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:arg verify_certs: whether to verify SSL certificates
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:arg ca_certs: optional path to CA bundle. See
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http://urllib3.readthedocs.org/en/latest/security.html#using-certifi-with-urllib3
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for instructions how to get default set
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:arg client_cert: path to the file containing the private key and the
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certificate
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:arg ssl_version: version of the SSL protocol to use. Choices are:
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SSLv23 (default) SSLv2 SSLv3 TLSv1 (see ``PROTOCOL_*`` constants in the
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``ssl`` module for exact options for your environment).
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:arg maxsize: the maximum number of connections which will be kept open to
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this host.
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"""
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def __init__(self, host='localhost', port=9200, http_auth=None,
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use_ssl=False, verify_certs=False, ca_certs=None, client_cert=None,
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ssl_version=None, maxsize=10, **kwargs):
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super(Urllib3HttpConnection, self).__init__(host=host, port=port, **kwargs)
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self.headers = urllib3.make_headers(keep_alive=True)
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if http_auth is not None:
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if isinstance(http_auth, (tuple, list)):
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http_auth = ':'.join(http_auth)
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self.headers.update(urllib3.make_headers(basic_auth=http_auth))
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pool_class = urllib3.HTTPConnectionPool
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kw = {}
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if use_ssl:
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pool_class = urllib3.HTTPSConnectionPool
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kw['ssl_version'] = ssl_version
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if verify_certs:
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kw['cert_reqs'] = 'CERT_REQUIRED'
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kw['ca_certs'] = ca_certs
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kw['cert_file'] = client_cert
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elif ca_certs:
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raise ImproperlyConfigured("You cannot pass CA certificates when verify SSL is off.")
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else:
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warnings.warn(
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'Connecting to %s using SSL with verify_certs=False is insecure.' % host)
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self.pool = pool_class(host, port=port, timeout=self.timeout, maxsize=maxsize, **kw)
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def perform_request(self, method, url, params=None, body=None, timeout=None, ignore=()):
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url = self.url_prefix + url
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if params:
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url = '%s?%s' % (url, urlencode(params))
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full_url = self.host + url
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start = time.time()
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try:
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kw = {}
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if timeout:
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kw['timeout'] = timeout
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# in python2 we need to make sure the url and method are not
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# unicode. Otherwise the body will be decoded into unicode too and
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# that will fail (#133, #201).
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if not isinstance(url, str):
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url = url.encode('utf-8')
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if not isinstance(method, str):
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method = method.encode('utf-8')
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response = self.pool.urlopen(method, url, body, retries=False, headers=self.headers, **kw)
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duration = time.time() - start
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raw_data = response.data.decode('utf-8')
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except UrllibSSLError as e:
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self.log_request_fail(method, full_url, body, time.time() - start, exception=e)
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raise SSLError('N/A', str(e), e)
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except ReadTimeoutError as e:
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self.log_request_fail(method, full_url, body, time.time() - start, exception=e)
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raise ConnectionTimeout('TIMEOUT', str(e), e)
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except Exception as e:
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self.log_request_fail(method, full_url, body, time.time() - start, exception=e)
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raise ConnectionError('N/A', str(e), e)
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if not (200 <= response.status < 300) and response.status not in ignore:
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self.log_request_fail(method, url, body, duration, response.status)
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self._raise_error(response.status, raw_data)
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self.log_request_success(method, full_url, url, body, response.status,
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raw_data, duration)
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return response.status, response.getheaders(), raw_data
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