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
|
# frozen_string_literal: true
module ContainerRegistry
class Client < BaseClient
include Gitlab::Utils::StrongMemoize
attr_accessor :uri
attr_reader :options, :base_uri
REGISTRY_VERSION_HEADER = 'gitlab-container-registry-version'
REGISTRY_FEATURES_HEADER = 'gitlab-container-registry-features'
REGISTRY_TAG_DELETE_FEATURE = 'tag_delete'
REGISTRY_DB_ENABLED_HEADER = 'gitlab-container-registry-database-enabled'
DEFAULT_TAGS_PAGE_SIZE = 10000
ALLOWED_REDIRECT_SCHEMES = %w[http https].freeze
REDIRECT_OPTIONS = {
clear_authorization_header: true,
limit: 3,
cookies: [],
callback: -> (response_env, request_env) do
request_env.request_headers.delete(::FaradayMiddleware::FollowRedirects::AUTH_HEADER)
redirect_to = request_env.url
unless redirect_to.scheme.in?(ALLOWED_REDIRECT_SCHEMES)
raise ArgumentError, "Invalid scheme for #{redirect_to}"
end
end
}.freeze
def self.supports_tag_delete?
with_dummy_client(return_value_if_disabled: false) do |client|
client.supports_tag_delete?
end
end
def self.registry_info
with_dummy_client do |client|
client.registry_info
end
end
def registry_info
response = faraday.get("/v2/")
return {} unless response&.success?
version = response.headers[REGISTRY_VERSION_HEADER]
features = response.headers.fetch(REGISTRY_FEATURES_HEADER, '')
db_enabled = response.headers.fetch(REGISTRY_DB_ENABLED_HEADER, '')
{
version: version,
features: features.split(',').map(&:strip),
vendor: version ? 'gitlab' : 'other',
db_enabled: ::Gitlab::Utils.to_boolean(db_enabled, default: false)
}
end
def repository_tags(name, page_size: DEFAULT_TAGS_PAGE_SIZE)
response = faraday.get("/v2/#{name}/tags/list") do |req|
req.params['n'] = page_size
end
response_body(response)
end
def repository_manifest(name, reference)
response_body faraday.get("/v2/#{name}/manifests/#{reference}")
end
def repository_tag_digest(name, reference)
response = faraday.head("/v2/#{name}/manifests/#{reference}")
response.headers[DependencyProxy::Manifest::DIGEST_HEADER] if response.success?
end
def delete_repository_tag_by_digest(name, reference)
delete_if_exists("/v2/#{name}/manifests/#{reference}")
end
# Check if the registry supports tag deletion. This is only supported by the
# GitLab registry fork. The fastest and safest way to check this is to send
# an OPTIONS request to /v2/<name>/manifests/<tag>, using a random
# repository name and tag (the registry won't check if they exist).
# Registries that support tag deletion will reply with a 200 OK and include
# the DELETE method in the Allow header. Others reply with an 404 Not Found.
def supports_tag_delete?
strong_memoize(:supports_tag_delete) do
registry_features = Gitlab::CurrentSettings.container_registry_features || []
next true if ::Gitlab.com_except_jh? && registry_features.include?(REGISTRY_TAG_DELETE_FEATURE)
response = faraday.run_request(:options, '/v2/name/manifests/tag', '', {})
response.success? && response.headers['allow']&.include?('DELETE')
end
end
def upload_raw_blob(path, blob)
digest = "sha256:#{Digest::SHA256.hexdigest(blob)}"
if upload_blob(path, blob, digest).success?
[blob, digest]
end
end
def upload_blob(name, content, digest)
upload = faraday(timeout_enabled: false).post("/v2/#{name}/blobs/uploads/")
return upload unless upload.success?
location = URI(upload.headers['location'])
faraday(timeout_enabled: false).put("#{location.path}?#{location.query}") do |req|
req.params['digest'] = digest
req.headers['Content-Type'] = 'application/octet-stream'
req.body = content
end
end
def generate_empty_manifest(path)
image = {
config: {}
}
image, image_digest = upload_raw_blob(path, Gitlab::Json.pretty_generate(image))
return unless image
{
schemaVersion: 2,
mediaType: DOCKER_DISTRIBUTION_MANIFEST_V2_TYPE,
config: {
mediaType: CONTAINER_IMAGE_V1_TYPE,
size: image.size,
digest: image_digest
}
}
end
def blob(name, digest, type = nil)
type ||= 'application/octet-stream'
response_body faraday_blob.get("/v2/#{name}/blobs/#{digest}", nil, 'Accept' => type)
end
def delete_blob(name, digest)
delete_if_exists("/v2/#{name}/blobs/#{digest}")
end
def put_tag(name, reference, manifest)
response = faraday(timeout_enabled: false).put("/v2/#{name}/manifests/#{reference}") do |req|
req.headers['Content-Type'] = DOCKER_DISTRIBUTION_MANIFEST_V2_TYPE
req.body = Gitlab::Json.pretty_generate(manifest)
end
response.headers[DependencyProxy::Manifest::DIGEST_HEADER] if response.success?
end
private
def faraday_blob
@faraday_blob ||= faraday_base do |conn|
initialize_connection(conn, @options)
conn.use ::FaradayMiddleware::FollowRedirects, REDIRECT_OPTIONS
end
end
end
end
ContainerRegistry::Client.prepend_mod_with('ContainerRegistry::Client')
|