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
|
# 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 os
import six
from ..utils import utils
from .. import errors
INDEX_URL = 'https://index.docker.io/v1/'
DOCKER_CONFIG_FILENAME = '.dockercfg'
def expand_registry_url(hostname, insecure=False):
if hostname.startswith('http:') or hostname.startswith('https:'):
return hostname
if utils.ping_registry('https://' + hostname):
return 'https://' + hostname
elif insecure:
return 'http://' + hostname
else:
raise errors.DockerException(
"HTTPS endpoint unresponsive and insecure mode isn't enabled."
)
def resolve_repository_name(repo_name, insecure=False):
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_URL, 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 expand_registry_url(parts[0], insecure), 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_URL
if registry in authconfig:
return authconfig[registry]
for key, config in six.iteritems(authconfig):
if convert_to_hostname(key) == registry:
return config
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 encode_full_header(auth):
""" Returns the given auth block encoded for the X-Registry-Config header.
"""
return encode_header({'configs': auth})
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
config_file = config_path or os.path.join(os.path.expanduser('~'),
DOCKER_CONFIG_FILENAME)
# if config path doesn't exist return empty config
if not os.path.exists(config_file):
return {}
# First try as JSON
try:
with open(config_file) as f:
conf = {}
for registry, entry in six.iteritems(json.load(f)):
username, password = decode_auth(entry['auth'])
conf[registry] = {
'username': username,
'password': password,
'email': entry['email'],
'serveraddress': registry,
}
return conf
except:
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
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_URL] = {
'username': username,
'password': password,
'email': data[1],
'serveraddress': INDEX_URL,
}
return conf
except:
pass
# If all fails, return an empty config
return {}
|
