| """Validate reusable-image references, frozen inputs and closed context archives offline.""" |
| import argparse |
| import json |
| from pathlib import Path |
| import re |
| from common import ROOT,contained,sha256 |
| from materialize_agent_context import archive_stream, current_context, verify_manifest |
|
|
|
|
| def check(root,reference): |
| path=contained(root,reference['path']) |
| if path.is_symlink() or not path.is_file() or path.stat().st_size!=reference['bytes'] or sha256(path)!=reference['sha256']: |
| raise ValueError('Artifact reference mismatch: '+reference['path']) |
| return path |
|
|
|
|
| def validate(root): |
| rows=json.loads((root/'data/reusable-agent-images.json').read_text())['instances'] |
| ids=[row['instance_id'] for row in rows] |
| if not rows or len(ids)!=len(set(ids)):raise ValueError('Empty/duplicate image index') |
| for row in rows: |
| image_path=check(root,row['image']);image=json.loads(image_path.read_text());folder=image_path.parent |
| if image['instance_id']!=row['instance_id'] or image['platform']!='linux/amd64' or image['model_independent'] is not True: |
| raise ValueError('Image identity/platform differs') |
| for name in ['registry_digest','amd64_manifest_digest','config_digest']: |
| if not re.fullmatch(r'sha256:[0-9a-f]{64}',image[name]):raise ValueError('Mutable/invalid image digest') |
| if image['image_ref']!=image['tag'].split(':',1)[0]+'@'+image['registry_digest']:raise ValueError('Image reference differs') |
| task_root=contained(root/'instances',row['instance_id']);task=json.loads((task_root/'task.json').read_text()) |
| if sha256(task_root/'task.json')!=image['task_sha256'] or sha256(task_root/task['evaluation']['path'])!=image['contract_sha256']: |
| raise ValueError('Frozen task/contract hash differs') |
| source=json.loads(check(folder,image['source_manifest']).read_text()) |
| actual={r['key']:(r['repo'],r['base_commit'],r['path']) for r in source['repositories']} |
| expected={r['key']:(r['repo'],r['base_commit'],r['container_path']) for r in task['repositories']} |
| if actual!=expected:raise ValueError('Agent source manifest differs from task') |
| check(folder,image['dockerfile']) |
| context_path,recipe=current_context(root,row['instance_id']);context=json.loads(context_path.read_text()) |
| with archive_stream(context_path.parent,context['archive']) as stream: |
| if stream.read(2)!=b'\x1f\x8b':raise ValueError('Invalid context gzip header') |
| verify_manifest(context_path) |
| return {'state':'VERIFIED','reusable_images':len(rows),'instance_ids':ids,'runtime_or_model_calls':0} |
|
|
|
|
| if __name__=='__main__': |
| parser=argparse.ArgumentParser(description=__doc__);parser.add_argument('--root',type=Path,default=ROOT) |
| print(json.dumps(validate(parser.parse_args().root.resolve()),sort_keys=True)) |
|
|
