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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.
#
import httplib
import os
import socket
import sys
import urllib
import urlparse
import warnings
from cStringIO import StringIO
from TTransport import *
class THttpClient(TTransportBase):
"""Http implementation of TTransport base."""
def __init__(self, uri_or_host, port=None, path=None):
"""THttpClient supports two different types constructor parameters.
THttpClient(host, port, path) - deprecated
THttpClient(uri)
Only the second supports https.
"""
if port is not None:
warnings.warn(
"Please use the THttpClient('http://host:port/path') syntax",
DeprecationWarning,
stacklevel=2)
self.host = uri_or_host
self.port = port
assert path
self.path = path
self.scheme = 'http'
else:
parsed = urlparse.urlparse(uri_or_host)
self.scheme = parsed.scheme
assert self.scheme in ('http', 'https')
if self.scheme == 'http':
self.port = parsed.port or httplib.HTTP_PORT
elif self.scheme == 'https':
self.port = parsed.port or httplib.HTTPS_PORT
self.host = parsed.hostname
self.path = parsed.path
if parsed.query:
self.path += '?%s' % parsed.query
self.__wbuf = StringIO()
self.__http = None
self.__timeout = None
self.__custom_headers = None
def open(self):
if self.scheme == 'http':
self.__http = httplib.HTTP(self.host, self.port)
else:
self.__http = httplib.HTTPS(self.host, self.port)
def close(self):
self.__http.close()
self.__http = None
def isOpen(self):
return self.__http is not None
def setTimeout(self, ms):
if not hasattr(socket, 'getdefaulttimeout'):
raise NotImplementedError
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.file.read(sz)
def write(self, buf):
self.__wbuf.write(buf)
def __withTimeout(f):
def _f(*args, **kwargs):
orig_timeout = socket.getdefaulttimeout()
socket.setdefaulttimeout(args[0].__timeout)
try:
result = f(*args, **kwargs)
finally:
socket.setdefaulttimeout(orig_timeout)
return result
return _f
def flush(self):
if self.isOpen():
self.close()
self.open()
# Pull data out of buffer
data = self.__wbuf.getvalue()
self.__wbuf = StringIO()
# HTTP request
self.__http.putrequest('POST', self.path)
# Write headers
self.__http.putheader('Host', self.host)
self.__http.putheader('Content-Type', 'application/x-thrift')
self.__http.putheader('Content-Length', str(len(data)))
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.quote(script))
self.__http.putheader('User-Agent', user_agent)
if self.__custom_headers:
for key, val in self.__custom_headers.iteritems():
self.__http.putheader(key, val)
self.__http.endheaders()
# Write payload
self.__http.send(data)
# Get reply to flush the request
self.code, self.message, self.headers = self.__http.getreply()
# Decorate if we know how to timeout
if hasattr(socket, 'getdefaulttimeout'):
flush = __withTimeout(flush)
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