-
Notifications
You must be signed in to change notification settings - Fork 0
/
app.py
224 lines (162 loc) · 5.99 KB
/
app.py
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
213
214
215
216
217
218
219
220
221
222
223
224
import os
import pdb
import uuid
from flask import Flask, request
app = Flask(__name__)
# end-1
@app.route('/v2/', methods=['GET'])
def verify_specification_implementation():
return '', 200
# end-2
@app.route('/v2/<path:name>/blobs/<digest>/', methods=['GET', 'HEAD'])
def get_blob_by_digest(name, digest):
file_content = find_blob_file('blobs', f'{name}_{digest}')
if file_content is None:
return '', 404
if request.method == 'HEAD':
return '', 200, {
'Docker-Content-Digest': digest,
'Content-Length': len(file_content)
}
return file_content, 200, {'Docker-Content-Digest': digest}
# end-3
@app.route('/v2/<path:name>/manifests/<location>/', methods=['GET', 'HEAD'])
def get_manifest_by_reference(name, location):
file_content = find_blob_file('manifests', f'{name}_{location}')
if file_content is None:
return '', 404
if request.method == 'HEAD':
return '', 200, {
'Docker-Content-Digest': location,
'Content-Length': len(file_content)
}
return file_content, 200, {'Docker-Content-Digest': location}
# end-4ab, end-11
@app.route('/v2/<path:name>/blobs/uploads/', methods=['POST'])
def upload_blob(name):
digest = request.args.get('digest')
if not digest:
session_id = str(uuid.uuid4())
upload_location = f'/v2/{name}/blobs/uploads/{session_id}/'
return '', 202, {'Location': upload_location}
if request.content_length is None or request.content_type != 'application/octet-stream':
return '', 400
mount = request.args.get('mount')
from_chunk = request.args.get('from')
if mount or from_chunk:
# end-11
return '', 202
# end-4b
binary_blob = request.data
save_blob_to_file('blobs', f'{name}_{digest}', binary_blob)
return '', 202, {'Location': f'/v2/{name}/blobs/{digest}/'}
# Undocumented Stream Blob Upload - https://github.com/opencontainers/distribution-spec/issues/303
@app.route('/v2/<path:name>/blobs/uploads/<location>/', methods=['PATCH'])
def upload_blob_chunk(name, location):
if request.content_length is None or request.content_type != 'application/octet-stream':
return '', 400
binary_blob = request.data
save_blob_to_file('blobs', f'{name}_{location}', binary_blob, append=True)
file_path = os.path.join('blobs', f'{name}_{location}')
save_blob_to_file('blobs', f'{name}_{location}', binary_blob, append=True)
get_file_size(file_path)
return '', 202, {
'Location': f'/v2/{name}/blobs/uploads/{location}/'
}
# end-6
@app.route('/v2/<path:name>/blobs/uploads/<location>/', methods=['PUT'])
def close_blob_upload(name, location):
digest = request.args.get('digest')
if not digest:
return '', 400
file_path = os.path.join('blobs', f'{name}_{location}')
if not os.path.exists(file_path):
return '', 404
binary_blob = request.data
if binary_blob:
save_blob_to_file('blobs', f'{name}_{location}', binary_blob, append=True)
calculated_digest = f"sha256:{uuid.uuid4().hex}"
if digest != calculated_digest:
return '', 400
return '', 201, {
'Location': f'/v2/{name}/blobs/{digest}/'
}
# end-7
@app.route("/v2/<path:name>/manifests/<location>/", methods=['PUT'])
def put_manifest(name, location):
if request.content_type != 'application/vnd.oci.image.manifest.v1+json':
return '', 400
manifest = request.get_json()
if manifest is None:
return '', 400
save_blob_to_file('manifests', f'{name}_{location}', request.data)
digest = f"{uuid.uuid4().hex}"
return '', 201, {
'Location': f'/v2/{name}/manifests/{location}/',
'Docker-Content-Digest': digest
}
# end-8ab
@app.route('/v2/<path:name>/tags/list/', methods=['GET'])
def get_tags_list(name):
last_tag = request.args.get('last')
amount = request.args.get('n')
if not amount or not last_tag:
# end-8b
return '', 200
# end-8a
return '', 200
# end-9
@app.route('/v2/<path:name>/manifests/<location>/', methods=['DELETE'])
def delete_manifest_by_reference(name, location):
file_path = os.path.join('manifests', f'{name}_{location}')
if os.path.exists(file_path):
os.remove(file_path)
return '', 202
return '', 404
# end-10
@app.route('/v2/<path:name>/blobs/<digest>/', methods=['DELETE'])
def delete_blob_by_digest(name, digest):
file_path = os.path.join('blobs', f'{name}_{digest}')
if os.path.exists(file_path):
os.remove(file_path)
return '', 202
return '', 404
# end-12ab
@app.route('/v2/<path:name>/referrers/<digest>/', methods=['GET'])
def get_referrers(name, digest):
artifact_type = request.args.get('artifactType')
if artifact_type:
# end-12b
return '', 200
# end-12a
return '', 200
# end-13
@app.route('/v2/<path:name>/blobs/uploads/<location>/', methods=['GET'])
def get_blob_upload_status(name, location):
file_path = os.path.join('blobs', location)
if os.path.exists(file_path):
file_size = get_file_size(file_path)
return '', 204, {
'Location': location + '/',
'Range': f'0-{file_size - 1}'
}
return '', 404
def save_blob_to_file(directory, filename, data, append=False):
if not os.path.exists(directory):
os.makedirs(directory)
sanitized_filename = filename.replace('/', '_')
file_path = os.path.join(directory, sanitized_filename)
mode = 'ab' if append else 'wb'
with open(file_path, mode) as f:
f.write(data)
def find_blob_file(directory, filename):
file_path = os.path.join(directory, filename)
if os.path.exists(file_path):
with open(file_path, 'rb') as file:
return file.read()
return None
def get_file_size(file_path):
return os.path.getsize(file_path) if os.path.exists(file_path) else 0
# https://github.com/opencontainers/distribution-spec/blob/main/spec.md
if __name__ == '__main__':
app.run(host='0.0.0.0', port=5000, debug=True)