# Copyright (c) 2006-2012 Mitch Garnaat http://garnaat.org/

# Copyright (c) 2012 Amazon.com, Inc. or its affiliates.

# Copyright (c) 2010 Google

# Copyright (c) 2008 rPath, Inc.

# Copyright (c) 2009 The Echo Nest Corporation

# Copyright (c) 2010, Eucalyptus Systems, Inc.

# Copyright (c) 2011, Nexenta Systems Inc.

# All rights reserved.

#

# Permission is hereby granted, free of charge, to any person obtaining a

# copy of this software and associated documentation files (the

# "Software"), to deal in the Software without restriction, including

# without limitation the rights to use, copy, modify, merge, publish, dis-

# tribute, sublicense, and/or sell copies of the Software, and to permit

# persons to whom the Software is furnished to do so, subject to the fol-

# lowing conditions:

#

# The above copyright notice and this permission notice shall be included

# in all copies or substantial portions of the Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-

# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT

# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS

# IN THE SOFTWARE.

#

# Parts of this code were copied or derived from sample code supplied by AWS.

# The following notice applies to that code.

#

# This software code is made available "AS IS" without warranties of any

# kind. You may copy, display, modify and redistribute the software

# code either by itself or as incorporated into your code; provided that

# you do not remove any proprietary notices. Your use of this software

# code is at your own risk and you waive any claim against Amazon

# Digital Services, Inc. or its affiliates with respect to your use of

# this software code. (c) 2006 Amazon Digital Services, Inc. or its

# affiliates.

"""

Handles basic connections to AWS

"""

from __future__ import with_statement

import base64

import errno

import httplib

import os

import Queue

import random

import re

import socket

import sys

import time

import urllib

import urlparse

import xml.sax

import copy

import auth

import auth_handler

import boto

import boto.utils

import boto.handler

import boto.cacerts

from boto import config, UserAgent

from boto.exception import AWSConnectionError

from boto.exception import BotoClientError

from boto.exception import BotoServerError

from boto.exception import PleaseRetryException

from boto.provider import Provider

from boto.resultset import ResultSet

HAVE_HTTPS_CONNECTION = False

try:

import ssl

from boto import https_connection

# Google App Engine runs on Python 2.5 so doesn't have ssl.SSLError.

if hasattr(ssl, 'SSLError'):

HAVE_HTTPS_CONNECTION = True

except ImportError:

pass

try:

import threading

except ImportError:

import dummy_threading as threading

ON_APP_ENGINE = all(key in os.environ for key in (

'USER_IS_ADMIN', 'CURRENT_VERSION_ID', 'APPLICATION_ID'))

PORTS_BY_SECURITY = {True: 443,

False: 80}

DEFAULT_CA_CERTS_FILE = os.path.join(os.path.dirname(os.path.abspath(boto.cacerts.__file__ )), "cacerts.txt")

class HostConnectionPool(object):

return return_time + ConnectionPool.STALE_DURATION < now

class ConnectionPool(object):

self.last_clean_time = now

class HTTPRequest(object):

self.headers['Content-Length'] = str(len(self.body))

class HTTPResponse(httplib.HTTPResponse):

return httplib.HTTPResponse.read(self, amt)

class AWSAuthConnection(object):