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
208
209
210
211
212
|
# Copyright 2013 dotCloud inc.
# Licensed 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 base64
import fileinput
import json
import logging
import os
import warnings
import six
from .. import constants
from .. import errors
INDEX_NAME = 'index.docker.io'
INDEX_URL = 'https://{0}/v1/'.format(INDEX_NAME)
DOCKER_CONFIG_FILENAME = os.path.join('.docker', 'config.json')
LEGACY_DOCKER_CONFIG_FILENAME = '.dockercfg'
log = logging.getLogger(__name__)
def resolve_repository_name(repo_name, insecure=False):
if insecure:
warnings.warn(
constants.INSECURE_REGISTRY_DEPRECATION_WARNING.format(
'resolve_repository_name()'
), DeprecationWarning
)
if '://' in repo_name:
raise errors.InvalidRepository(
'Repository name cannot contain a scheme ({0})'.format(repo_name))
parts = repo_name.split('/', 1)
if '.' not in parts[0] and ':' not in parts[0] and parts[0] != 'localhost':
# This is a docker index repo (ex: foo/bar or ubuntu)
return INDEX_NAME, repo_name
if len(parts) < 2:
raise errors.InvalidRepository(
'Invalid repository name ({0})'.format(repo_name))
if 'index.docker.io' in parts[0]:
raise errors.InvalidRepository(
'Invalid repository name, try "{0}" instead'.format(parts[1])
)
return parts[0], parts[1]
def resolve_authconfig(authconfig, registry=None):
"""
Returns the authentication data from the given auth configuration for a
specific registry. As with the Docker client, legacy entries in the config
with full URLs are stripped down to hostnames before checking for a match.
Returns None if no match was found.
"""
# Default to the public index server
registry = convert_to_hostname(registry) if registry else INDEX_NAME
log.debug("Looking for auth entry for {0}".format(repr(registry)))
if registry in authconfig:
log.debug("Found {0}".format(repr(registry)))
return authconfig[registry]
for key, config in six.iteritems(authconfig):
if convert_to_hostname(key) == registry:
log.debug("Found {0}".format(repr(key)))
return config
log.debug("No entry found")
return None
def convert_to_hostname(url):
return url.replace('http://', '').replace('https://', '').split('/', 1)[0]
def encode_auth(auth_info):
return base64.b64encode(auth_info.get('username', '') + b':' +
auth_info.get('password', ''))
def decode_auth(auth):
if isinstance(auth, six.string_types):
auth = auth.encode('ascii')
s = base64.b64decode(auth)
login, pwd = s.split(b':', 1)
return login.decode('ascii'), pwd.decode('ascii')
def encode_header(auth):
auth_json = json.dumps(auth).encode('ascii')
return base64.b64encode(auth_json)
def parse_auth(entries):
"""
Parses authentication entries
Args:
entries: Dict of authentication entries.
Returns:
Authentication registry.
"""
conf = {}
for registry, entry in six.iteritems(entries):
username, password = decode_auth(entry['auth'])
log.debug(
'Found entry (registry={0}, username={1})'
.format(repr(registry), repr(username))
)
conf[registry] = {
'username': username,
'password': password,
'email': entry['email'],
'serveraddress': registry,
}
return conf
def load_config(config_path=None):
"""
Loads authentication data from a Docker configuration file in the given
root directory or if config_path is passed use given path.
"""
conf = {}
data = None
# Prefer ~/.docker/config.json.
config_file = config_path or os.path.join(os.path.expanduser('~'),
DOCKER_CONFIG_FILENAME)
log.debug("Trying {0}".format(config_file))
if os.path.exists(config_file):
try:
with open(config_file) as f:
for section, data in six.iteritems(json.load(f)):
if section != 'auths':
continue
log.debug("Found 'auths' section")
return parse_auth(data)
log.debug("Couldn't find 'auths' section")
except (IOError, KeyError, ValueError) as e:
# Likely missing new Docker config file or it's in an
# unknown format, continue to attempt to read old location
# and format.
log.debug(e)
pass
else:
log.debug("File doesn't exist")
config_file = config_path or os.path.join(os.path.expanduser('~'),
LEGACY_DOCKER_CONFIG_FILENAME)
log.debug("Trying {0}".format(config_file))
if not os.path.exists(config_file):
log.debug("File doesn't exist - returning empty config")
return {}
log.debug("Attempting to parse as JSON")
try:
with open(config_file) as f:
return parse_auth(json.load(f))
except Exception as e:
log.debug(e)
pass
# If that fails, we assume the configuration file contains a single
# authentication token for the public registry in the following format:
#
# auth = AUTH_TOKEN
# email = email@domain.com
log.debug("Attempting to parse legacy auth file format")
try:
data = []
for line in fileinput.input(config_file):
data.append(line.strip().split(' = ')[1])
if len(data) < 2:
# Not enough data
raise errors.InvalidConfigFile(
'Invalid or empty configuration file!')
username, password = decode_auth(data[0])
conf[INDEX_NAME] = {
'username': username,
'password': password,
'email': data[1],
'serveraddress': INDEX_URL,
}
return conf
except Exception as e:
log.debug(e)
pass
log.debug("All parsing attempts failed - returning empty config")
return {}
|
