def main(args=None): parser = cli_utils.add_parser_options( description='Validate collection signature', default_server=DEFAULT_SERVER, default_bucket=DEST_BUCKET, default_collection=DEST_COLLECTION) args = parser.parse_args(args) client = cli_utils.create_client_from_args(args) # 1. Grab collection information dest_col = client.get_collection() # 2. Grab records records = list(client.get_records(_sort='-last_modified')) timestamp = client.get_records_timestamp() # 3. Serialize serialized = canonical_json(records, timestamp) # 4. Compute the hash computed_hash = compute_hash(serialized) # 5. Grab the signature signature = dest_col['data']['signature'] # 6. Grab the public key with open('pub', 'w') as f: f.write(signature['public_key']) # 7. Verify the signature matches the hash signer = ECDSASigner(public_key='pub') try: signer.verify(serialized, signature) print('Signature OK') except Exception: print('Signature KO. Computed hash: %s' % computed_hash) raise
def test_compute_hash(): assert compute_hash("un-bateau") == compute_hash("un-bateau") expected_hash = ("YofMiNkvyRoLAc/jCwKEgC3krpYFrsC0fzbrtecT4AigzZo" "6BEoHvu2wiLpKfW81") assert compute_hash("sont-dans-un-bateau") == expected_hash
def main(): args = _get_args() client = Client(server_url=args.server, auth=tuple(args.auth.split(':')), bucket=args.source_bucket, collection=args.source_col) if args.editor_auth is None: args.editor_auth = args.auth if args.reviewer_auth is None: args.reviewer_auth = args.auth editor_client = Client(server_url=args.server, auth=tuple(args.editor_auth.split(':')), bucket=args.source_bucket, collection=args.source_col) reviewer_client = Client(server_url=args.server, auth=tuple(args.reviewer_auth.split(':')), bucket=args.source_bucket, collection=args.source_col) # 0. initialize source bucket/collection (if necessary) server_info = client.server_info() editor_id = editor_client.server_info()['user']['id'] reviewer_id = reviewer_client.server_info()['user']['id'] print('Server: {0}'.format(args.server)) print('Author: {user[id]}'.format(**server_info)) print('Editor: {0}'.format(editor_id)) print('Reviewer: {0}'.format(reviewer_id)) # 0. check that this collection is well configured. signer_capabilities = server_info['capabilities']['signer'] to_review_enabled = signer_capabilities.get('to_review_enabled', False) group_check_enabled = signer_capabilities.get('group_check_enabled', False) resources = [ r for r in signer_capabilities['resources'] if (args.source_bucket, args.source_col) == (r['source']['bucket'], r['source']['collection']) ] assert len(resources) > 0, 'Specified source not configured to be signed' resource = resources[0] if to_review_enabled and 'preview' in resource: print( 'Signoff: {source[bucket]}/{source[collection]} => {preview[bucket]}/{preview[collection]} => {destination[bucket]}/{destination[collection]}' .format(**resource)) else: print( 'Signoff: {source[bucket]}/{source[collection]} => {destination[bucket]}/{destination[collection]}' .format(**resource)) print('Group check: {0}'.format(group_check_enabled)) print('Review workflow: {0}'.format(to_review_enabled)) print('_' * 80) bucket = client.create_bucket(if_not_exists=True) client.patch_bucket(permissions={ 'write': [editor_id, reviewer_id] + bucket['permissions']['write'] }, if_match=bucket['data']['last_modified'], safe=True) client.create_collection(if_not_exists=True) if args.reset: client.delete_records() existing = 0 else: existing_records = client.get_records() existing = len(existing_records) if group_check_enabled: editors_group = signer_capabilities['editors_group'] client.create_group(editors_group, data={'members': [editor_id]}, if_not_exists=True) reviewers_group = signer_capabilities['reviewers_group'] client.create_group(reviewers_group, data={'members': [reviewer_id]}, if_not_exists=True) dest_client = Client(server_url=args.server, bucket=resource['destination']['bucket'], collection=resource['destination']['collection']) preview_client = None if to_review_enabled and 'preview' in resource: preview_bucket = resource['preview']['bucket'] preview_collection = resource['preview']['collection'] preview_client = Client(server_url=args.server, bucket=preview_bucket, collection=preview_collection) # 1. upload data print('Author uploads 20 random records') records = upload_records(client, 20) # 2. ask for a signature # 2.1 ask for review (noop on old versions) print('Editor asks for review') data = {"status": "to-review"} editor_client.patch_collection(data=data) # 2.2 check the preview collection (if enabled) if preview_client: print('Check preview collection') preview_records = preview_client.get_records() expected = existing + 20 assert len(preview_records) == expected, '%s != %s records' % ( len(preview_records), expected) metadata = preview_client.get_collection()['data'] preview_signature = metadata.get('signature') assert preview_signature, 'Preview collection not signed' preview_timestamp = collection_timestamp(preview_client) # 2.3 approve the review print('Reviewer approves and triggers signature') data = {"status": "to-sign"} reviewer_client.patch_collection(data=data) # 3. upload more data print('Author creates 20 others records') upload_records(client, 20) print('Editor updates 5 random records') for toupdate in random.sample(records, 5): editor_client.patch_record(dict(newkey=_rand(10), **toupdate)) print('Author deletes 5 random records') for todelete in random.sample(records, 5): client.delete_record(todelete['id']) expected = existing + 20 + 20 - 5 # 4. ask again for a signature # 2.1 ask for review (noop on old versions) print('Editor asks for review') data = {"status": "to-review"} editor_client.patch_collection(data=data) # 2.2 check the preview collection (if enabled) if preview_client: print('Check preview collection') preview_records = preview_client.get_records() assert len(preview_records) == expected, '%s != %s records' % ( len(preview_records), expected) # Diff size is 20 + 5 if updated records are also all deleted, # or 30 if deletions and updates apply to different records. diff_since_last = preview_client.get_records(_since=preview_timestamp) assert 25 <= len( diff_since_last ) <= 30, 'Changes since last signature are not consistent' metadata = preview_client.get_collection()['data'] assert preview_signature != metadata[ 'signature'], 'Preview collection not updated' # 2.3 approve the review print('Reviewer approves and triggers signature') data = {"status": "to-sign"} reviewer_client.patch_collection(data=data) # 5. wait for the result # 6. obtain the destination records and serialize canonically. records = list(dest_client.get_records()) assert len(records) == expected, '%s != %s records' % (len(records), expected) timestamp = collection_timestamp(dest_client) serialized = canonical_json(records, timestamp) print('Hash is %r' % compute_hash(serialized)) # 7. get back the signed hash dest_col = dest_client.get_collection() signature = dest_col['data']['signature'] with open('pub', 'w') as f: f.write(signature['public_key']) # 8. verify the signature matches the hash signer = ECDSASigner(public_key='pub') try: signer.verify(serialized, signature) print('Signature OK') except Exception: print('Signature KO') raise
def main(): args = _get_args() client = Client(server_url=args.server, auth=tuple(args.auth.split(':')), bucket=args.source_bucket, collection=args.source_col) if args.editor_auth is None: args.editor_auth = args.auth if args.reviewer_auth is None: args.reviewer_auth = args.auth editor_client = Client(server_url=args.server, auth=tuple(args.editor_auth.split(':')), bucket=args.source_bucket, collection=args.source_col) reviewer_client = Client(server_url=args.server, auth=tuple(args.reviewer_auth.split(':')), bucket=args.source_bucket, collection=args.source_col) # 0. initialize source bucket/collection (if necessary) server_info = client.server_info() editor_id = editor_client.server_info()['user']['id'] reviewer_id = reviewer_client.server_info()['user']['id'] print('Server: {0}'.format(args.server)) print('Author: {user[id]}'.format(**server_info)) print('Editor: {0}'.format(editor_id)) print('Reviewer: {0}'.format(reviewer_id)) # 0. check that this collection is well configured. signer_capabilities = server_info['capabilities']['signer'] resources = [r for r in signer_capabilities['resources'] if (args.source_bucket, args.source_col) == (r['source']['bucket'], r['source']['collection']) or (args.source_bucket, None) == (r['source']['bucket'], r['source']['collection'])] assert len(resources) > 0, 'Specified source not configured to be signed' resource = resources[0] if 'preview' in resource: print('Signoff: {source[bucket]}/{source[collection]} => {preview[bucket]}/{preview[collection]} => {destination[bucket]}/{destination[collection]}'.format(**resource)) else: print('Signoff: {source[bucket]}/{source[collection]} => {destination[bucket]}/{destination[collection]}'.format(**resource)) print('_' * 80) bucket = client.create_bucket(if_not_exists=True) client.create_collection(permissions={'write': [editor_id, reviewer_id] + bucket['permissions']['write']}, if_not_exists=True) editors_group = resource.get('editors_group') or signer_capabilities['editors_group'] editors_group = editors_group.format(collection_id=args.source_col) client.patch_group(id=editors_group, data={'members': [editor_id]}) reviewers_group = resource.get('reviewers_group') or signer_capabilities['reviewers_group'] reviewers_group = reviewers_group.format(collection_id=args.source_col) client.patch_group(id=reviewers_group, data={'members': [reviewer_id]}) if args.reset: client.delete_records() existing = 0 else: existing_records = client.get_records() existing = len(existing_records) dest_col = resource['destination'].get('collection') or args.source_col dest_client = Client(server_url=args.server, bucket=resource['destination']['bucket'], collection=dest_col) preview_client = None if 'preview' in resource: preview_bucket = resource['preview']['bucket'] preview_collection = resource['preview'].get('collection') or args.source_col preview_client = Client(server_url=args.server, bucket=preview_bucket, collection=preview_collection) # 1. upload data print('Author uploads 20 random records') records = upload_records(client, 20) # 2. ask for a signature # 2.1 ask for review (noop on old versions) print('Editor asks for review') data = {"status": "to-review"} editor_client.patch_collection(data=data) # 2.2 check the preview collection (if enabled) if preview_client: print('Check preview collection') preview_records = preview_client.get_records() expected = existing + 20 assert len(preview_records) == expected, '%s != %s records' % (len(preview_records), expected) metadata = preview_client.get_collection()['data'] preview_signature = metadata.get('signature') assert preview_signature, 'Preview collection not signed' preview_timestamp = preview_client.get_records_timestamp() # 2.3 approve the review print('Reviewer approves and triggers signature') data = {"status": "to-sign"} reviewer_client.patch_collection(data=data) # 3. upload more data print('Author creates 20 others records') upload_records(client, 20) print('Editor updates 5 random records') for toupdate in random.sample(records, 5): editor_client.patch_record(data=dict(newkey=_rand(10), **toupdate)) print('Author deletes 5 random records') for todelete in random.sample(records, 5): client.delete_record(id=todelete['id']) expected = existing + 20 + 20 - 5 # 4. ask again for a signature # 2.1 ask for review (noop on old versions) print('Editor asks for review') data = {"status": "to-review"} editor_client.patch_collection(data=data) # 2.2 check the preview collection (if enabled) if preview_client: print('Check preview collection') preview_records = preview_client.get_records() assert len(preview_records) == expected, '%s != %s records' % (len(preview_records), expected) # Diff size is 20 + 5 if updated records are also all deleted, # or 30 if deletions and updates apply to different records. diff_since_last = preview_client.get_records(_since=preview_timestamp) assert 25 <= len(diff_since_last) <= 30, 'Changes since last signature are not consistent' metadata = preview_client.get_collection()['data'] assert preview_signature != metadata['signature'], 'Preview collection not updated' # 2.3 approve the review print('Reviewer approves and triggers signature') data = {"status": "to-sign"} reviewer_client.patch_collection(data=data) # 5. wait for the result # 6. obtain the destination records and serialize canonically. records = list(dest_client.get_records()) assert len(records) == expected, '%s != %s records' % (len(records), expected) timestamp = dest_client.get_records_timestamp() serialized = canonical_json(records, timestamp) print('Hash is %r' % compute_hash(serialized)) # 7. get back the signed hash signature = dest_client.get_collection()['data']['signature'] with open('pub', 'w') as f: f.write(signature['public_key']) # 8. verify the signature matches the hash signer = ECDSASigner(public_key='pub') try: signer.verify(serialized, signature) print('Signature OK') except Exception: print('Signature KO') raise