1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
# Copyright (c) 2006,2007 Mitch Garnaat http://garnaat.org/
#
# 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.
import xml.sax
import urllib, base64
import time
import boto.utils
from boto.connection import AWSAuthConnection
from boto import handler
from boto.s3.bucket import Bucket
from boto.s3.key import Key
from boto.resultset import ResultSet
from boto.exception import S3ResponseError, S3CreateError, BotoClientError
def assert_case_insensitive(f):
def wrapper(*args, **kwargs):
if len(args) == 3 and not args[2].islower():
raise BotoClientError("Bucket names cannot contain upper-case " \
"characters when using either the sub-domain or virtual " \
"hosting calling format.")
return f(*args, **kwargs)
return wrapper
class _CallingFormat:
def build_url_base(self, protocol, server, bucket, key=''):
url_base = '%s://' % protocol
url_base += self.build_host(server, bucket)
url_base += self.build_path_base(bucket, key)
return url_base
def build_host(self, server, bucket):
if bucket == '':
return server
else:
return self.get_bucket_server(server, bucket)
def build_auth_path(self, bucket, key=''):
path = ''
if bucket != '':
path = '/' + bucket
return path + '/%s' % urllib.quote_plus(key)
def build_path_base(self, bucket, key=''):
return '/%s' % urllib.quote_plus(key)
class SubdomainCallingFormat(_CallingFormat):
@assert_case_insensitive
def get_bucket_server(self, server, bucket):
return '%s.%s' % (bucket, server)
class VHostCallingFormat(_CallingFormat):
@assert_case_insensitive
def get_bucket_server(self, server, bucket):
return bucket
class OrdinaryCallingFormat(_CallingFormat):
def get_bucket_server(self, server, bucket):
return server
def build_path_base(self, bucket, key=''):
path_base = '/'
if bucket:
path_base += "%s/" % bucket
return path_base + urllib.quote_plus(key)
class Location:
DEFAULT = ''
EU = 'EU'
class S3Connection(AWSAuthConnection):
DefaultHost = 's3.amazonaws.com'
QueryString = 'Signature=%s&Expires=%d&AWSAccessKeyId=%s'
def __init__(self, aws_access_key_id=None, aws_secret_access_key=None,
is_secure=True, port=None, proxy=None, proxy_port=None,
host=DefaultHost, debug=0, https_connection_factory=None,
calling_format=SubdomainCallingFormat()):
self.calling_format = calling_format
AWSAuthConnection.__init__(self, host,
aws_access_key_id, aws_secret_access_key,
is_secure, port, proxy, proxy_port, debug=debug,
https_connection_factory=https_connection_factory)
def __iter__(self):
return self.get_all_buckets()
def generate_url(self, expires_in, method, bucket='', key='',
headers=None, query_auth=True):
if not headers:
headers = {}
expires = int(time.time() + expires_in)
auth_path = self.calling_format.build_auth_path(bucket, key)
canonical_str = boto.utils.canonical_string(method, auth_path,
headers, expires)
hmac_copy = self.hmac.copy()
hmac_copy.update(canonical_str)
b64_hmac = base64.encodestring(hmac_copy.digest()).strip()
encoded_canonical = urllib.quote_plus(b64_hmac)
path = self.calling_format.build_path_base(bucket, key)
if query_auth:
query_part = '?' + self.QueryString % (encoded_canonical, expires,
self.aws_access_key_id)
else:
query_part = ''
return self.calling_format.build_url_base(self.protocol,
self.server_name, bucket, key) + query_part
def get_all_buckets(self):
response = self.make_request('GET')
body = response.read()
if response.status > 300:
raise S3ResponseError(response.status, response.reason, body)
rs = ResultSet([('Bucket', Bucket)])
h = handler.XmlHandler(rs, self)
xml.sax.parseString(body, h)
return rs
def get_canonical_user_id(self):
"""
Convenience method that returns the "CanonicalUserID" of the user who's credentials
are associated with the connection. The only way to get this value is to do a GET
request on the service which returns all buckets associated with the account. As part
of that response, the canonical userid is returned. This method simply does all of
that and then returns just the user id.
Returns:
A string containing the canonical user id.
"""
rs = self.get_all_buckets()
return rs.ID
def get_bucket(self, bucket_name):
bucket = Bucket(self, bucket_name)
rs = bucket.get_all_keys(None, maxkeys=0)
return bucket
def lookup(self, bucket_name):
try:
bucket = self.get_bucket(bucket_name)
except:
bucket = None
return bucket
def create_bucket(self, bucket_name, headers={}, location=Location.DEFAULT):
"""
Creates a new located bucket. By default it's in the USA. You can pass
Location.EU to create an European bucket.
"""
if location == Location.DEFAULT:
data = ''
else:
data = '<CreateBucketConstraint><LocationConstraint>' + \
location + '</LocationConstraint></CreateBucketConstraint>'
response = self.make_request('PUT', bucket_name, headers=headers,
data=data)
body = response.read()
if response.status == 409:
raise S3CreateError(response.status, response.reason, body)
if response.status == 200:
return Bucket(self, bucket_name)
else:
raise S3ResponseError(response.status, response.reason, body)
def delete_bucket(self, bucket):
response = self.make_request('DELETE', bucket)
body = response.read()
if response.status != 204:
raise S3ResponseError(response.status, response.reason, body)
def make_request(self, method, bucket='', key='', headers=None, data='',
query_args=None, sender=None):
if isinstance(bucket, Bucket):
bucket = bucket.name
if isinstance(key, Key):
key = key.name
path = self.calling_format.build_path_base(bucket, key)
auth_path = self.calling_format.build_auth_path(bucket, key)
host = self.calling_format.build_host(self.server, bucket)
if query_args:
path += '?' + query_args
auth_path += '?' + query_args
return AWSAuthConnection.make_request(self, method, path, headers,
data, host, auth_path, sender)
# def checked_request(self, method, bucket='', key='', headers=None, data='',
# query_args=None, sender=None, good_status=200):
# response = self.make_request(method, bucket, key, headers, data,
# query_args, sender)
# return check_s3_response(response, good_status)
|
