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#
# 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.
#
from io import BytesIO
import os
import ssl
import sys
import warnings
import base64
from six.moves import urllib
from six.moves import http_client
from .TTransport import TTransportBase
import six
class THttpClient(TTransportBase):
"""Http implementation of TTransport base."""
def __init__(self, uri_or_host, port=None, path=None, cafile=None, cert_file=None, key_file=None, ssl_context=None):
"""THttpClient supports two different types of construction:
THttpClient(host, port, path) - deprecated
THttpClient(uri, [port=<n>, path=<s>, cafile=<filename>, cert_file=<filename>, key_file=<filename>, ssl_context=<context>])
Only the second supports https. To properly authenticate against the server,
provide the client's identity by specifying cert_file and key_file. To properly
authenticate the server, specify either cafile or ssl_context with a CA defined.
NOTE: if both cafile and ssl_context are defined, ssl_context will override cafile.
"""
if port is not None:
warnings.warn(
"Please use the THttpClient('http{s}://host:port/path') constructor",
DeprecationWarning,
stacklevel=2)
self.host = uri_or_host
self.port = port
assert path
self.path = path
self.scheme = 'http'
else:
parsed = urllib.parse.urlparse(uri_or_host)
self.scheme = parsed.scheme
assert self.scheme in ('http', 'https')
if self.scheme == 'http':
self.port = parsed.port or http_client.HTTP_PORT
elif self.scheme == 'https':
self.port = parsed.port or http_client.HTTPS_PORT
self.certfile = cert_file
self.keyfile = key_file
self.context = ssl.create_default_context(cafile=cafile) if (cafile and not ssl_context) else ssl_context
self.host = parsed.hostname
self.path = parsed.path
if parsed.query:
self.path += '?%s' % parsed.query
try:
proxy = urllib.request.getproxies()[self.scheme]
except KeyError:
proxy = None
else:
if urllib.request.proxy_bypass(self.host):
proxy = None
if proxy:
parsed = urllib.parse.urlparse(proxy)
self.realhost = self.host
self.realport = self.port
self.host = parsed.hostname
self.port = parsed.port
self.proxy_auth = self.basic_proxy_auth_header(parsed)
else:
self.realhost = self.realport = self.proxy_auth = None
self.__wbuf = BytesIO()
self.__http = None
self.__http_response = None
self.__timeout = None
self.__custom_headers = None
self.headers = None
@staticmethod
def basic_proxy_auth_header(proxy):
if proxy is None or not proxy.username:
return None
ap = "%s:%s" % (urllib.parse.unquote(proxy.username),
urllib.parse.unquote(proxy.password))
cr = base64.b64encode(ap.encode()).strip()
return "Basic " + cr
def using_proxy(self):
return self.realhost is not None
def open(self):
if self.scheme == 'http':
self.__http = http_client.HTTPConnection(self.host, self.port,
timeout=self.__timeout)
elif self.scheme == 'https':
self.__http = http_client.HTTPSConnection(self.host, self.port,
key_file=self.keyfile,
cert_file=self.certfile,
timeout=self.__timeout,
context=self.context)
if self.using_proxy():
self.__http.set_tunnel(self.realhost, self.realport,
{"Proxy-Authorization": self.proxy_auth})
def close(self):
self.__http.close()
self.__http = None
self.__http_response = None
def isOpen(self):
return self.__http is not None
def setTimeout(self, ms):
if ms is None:
self.__timeout = None
else:
self.__timeout = ms / 1000.0
def setCustomHeaders(self, headers):
self.__custom_headers = headers
def read(self, sz):
return self.__http_response.read(sz)
def write(self, buf):
self.__wbuf.write(buf)
def flush(self):
if self.isOpen():
self.close()
self.open()
# Pull data out of buffer
data = self.__wbuf.getvalue()
self.__wbuf = BytesIO()
# HTTP request
if self.using_proxy() and self.scheme == "http":
# need full URL of real host for HTTP proxy here (HTTPS uses CONNECT tunnel)
self.__http.putrequest('POST', "http://%s:%s%s" %
(self.realhost, self.realport, self.path))
else:
self.__http.putrequest('POST', self.path)
# Write headers
self.__http.putheader('Content-Type', 'application/x-thrift')
self.__http.putheader('Content-Length', str(len(data)))
if self.using_proxy() and self.scheme == "http" and self.proxy_auth is not None:
self.__http.putheader("Proxy-Authorization", self.proxy_auth)
if not self.__custom_headers or 'User-Agent' not in self.__custom_headers:
user_agent = 'Python/THttpClient'
script = os.path.basename(sys.argv[0])
if script:
user_agent = '%s (%s)' % (user_agent, urllib.parse.quote(script))
self.__http.putheader('User-Agent', user_agent)
if self.__custom_headers:
for key, val in six.iteritems(self.__custom_headers):
self.__http.putheader(key, val)
# Saves the cookie sent by the server in the previous response.
# HTTPConnection.putheader can only be called after a request has been
# started, and before it's been sent.
if self.headers and 'Set-Cookie' in self.headers:
self.__http.putheader('Cookie', self.headers['Set-Cookie'])
self.__http.endheaders()
# Write payload
self.__http.send(data)
# Get reply to flush the request
self.__http_response = self.__http.getresponse()
self.code = self.__http_response.status
self.message = self.__http_response.reason
self.headers = self.__http_response.msg
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