def test_nft_access_no_agreement(client, provider_account, consumer_account):
ddo = get_nft_ddo(provider_account, providers=[provider_account.address])
nft_amounts = 1
keeper = keeper_instance()
keeper.nft_upgradeable.transfer_nft(ddo.asset_id, consumer_account.address,
nft_amounts, provider_account)
no_agreement_id = '0x'
# generate the grant token
grant_token = generate_access_grant_token(consumer_account,
no_agreement_id,
ddo.did,
uri="/nft-access")
# request access token
response = client.post("/api/v1/gateway/services/oauth/token",
data={
"grant_type":
NeverminedJWTBearerGrant.GRANT_TYPE,
"assertion": grant_token
})
access_token = response.get_json()["access_token"]
index = 0
endpoint = BaseURLs.ASSETS_URL + '/nft-access/%s/%d' % (no_agreement_id,
index)
response = client.get(endpoint,
headers={"Authorization": f"Bearer {access_token}"})
assert response.status == '200 OK'
assert len(
keeper.did_registry.get_provenance_method_events(
'USED', did_bytes=did_to_id_bytes(ddo.did))) >= 1
def test_nft_access(client, provider_account, consumer_account):
keeper = keeper_instance()
ddo = get_nft_ddo(provider_account, providers=[provider_account.address])
asset_id = ddo.asset_id
nft_amounts = 1
keeper.nft_upgradeable.transfer_nft(asset_id, consumer_account.address,
nft_amounts, provider_account)
assert keeper.nft_upgradeable.balance(consumer_account.address,
asset_id) >= nft_amounts
nft_access_service_agreement = ServiceAgreement.from_ddo(
ServiceTypes.NFT_ACCESS, ddo)
agreement_id = ServiceAgreement.create_new_agreement_id()
(nft_access_cond_id, nft_holder_cond_id
) = nft_access_service_agreement.generate_agreement_condition_ids(
agreement_id, asset_id, consumer_account.address, keeper)
print('NFT_ACCESS_DID: ' + asset_id)
keeper.nft_access_template.create_agreement(
agreement_id, asset_id, [nft_holder_cond_id, nft_access_cond_id],
nft_access_service_agreement.conditions_timelocks,
nft_access_service_agreement.conditions_timeouts,
consumer_account.address, consumer_account)
event = keeper.nft_access_template.subscribe_agreement_created(
agreement_id, 15, None, (), wait=True, from_block=0)
assert event, "Agreement event is not found, check the keeper node's logs"
# generate the grant token
grant_token = generate_access_grant_token(consumer_account,
agreement_id,
ddo.did,
uri="/nft-access")
# request access token
response = client.post("/api/v1/gateway/services/oauth/token",
data={
"grant_type":
NeverminedJWTBearerGrant.GRANT_TYPE,
"assertion": grant_token
})
access_token = response.get_json()["access_token"]
index = 0
endpoint = BaseURLs.ASSETS_URL + '/nft-access/%s/%d' % (agreement_id,
index)
response = client.get(endpoint,
headers={"Authorization": f"Bearer {access_token}"})
assert response.status == '200 OK'
assert len(
keeper.did_registry.get_provenance_method_events(
'USED', did_bytes=did_to_id_bytes(ddo.did))) >= 1
def test_create_ddo(metadata):
pub_acc = get_publisher_account()
ddo = DDO()
ddo.add_service(ServiceTypes.METADATA,
'http://mymetadata.com',
values=dict({"attributes": metadata}),
index='0')
checksums = dict()
for service in ddo.services:
checksums[str(service.index)] = checksum(service.main)
ddo.add_proof(checksums, pub_acc)
did = ddo.assign_did(DID.encoded_did(ddo.proof['checksum']))
ddo.proof['signatureValue'] = Keeper.sign_hash(did_to_id_bytes(did),
pub_acc)
ddo.add_public_key(did, pub_acc.address)
ddo.add_authentication(did, PUBLIC_KEY_TYPE_RSA)
def resolve(self, did):
"""
Resolve a DID to an URL/DDO or later an internal/external DID.
:param did: 32 byte value or DID string to resolver, this is part of the ocean
DID did:nv:<32 byte value>
:return string: URL or DDO of the resolved DID
:return None: if the DID cannot be resolved
:raises ValueError: if did is invalid
:raises TypeError: if did has invalid format
:raises TypeError: on non 32byte value as the DID
:raises TypeError: on any of the resolved values are not string/DID bytes.
:raises OceanDIDNotFound: if no DID can be found to resolve.
"""
did_bytes = did_to_id_bytes(did)
if not isinstance(did_bytes, bytes):
raise TypeError('Invalid did: a 32 Byte DID value required.')
# resolve a DID to a DDO
url = self.get_resolve_url(did_bytes)
logger.debug(f'found did {did} -> url={url}')
return MetadataProvider.get_metadata_provider(url).get_asset_ddo(did)
def test_access_proof(client, provider_account, consumer_account):
for method in constants.ConfigSections.DECRYPTION_METHODS:
ddo = get_proof_ddo(provider_account,
providers=[provider_account.address],
auth_service=method)
# initialize an agreement
agreement_id = place_order(provider_account, ddo, consumer_account,
ServiceTypes.ASSET_ACCESS_PROOF)
print(ddo.did)
keeper = keeper_instance()
index = 0
event = keeper.access_proof_template.subscribe_agreement_created(
agreement_id, 15, None, (), wait=True, from_block=0)
assert event, "Agreement event is not found, check the keeper node's logs"
consumer_balance = keeper.token.get_token_balance(
consumer_account.address)
if consumer_balance < 50:
keeper.dispenser.request_tokens(50 - consumer_balance,
consumer_account)
sa = ServiceAgreement.from_ddo(ServiceTypes.ASSET_ACCESS_PROOF, ddo)
lock_payment(agreement_id, ddo.asset_id, sa, amounts, receivers,
consumer_account)
event = keeper.lock_payment_condition.subscribe_condition_fulfilled(
agreement_id, 15, None, (), wait=True, from_block=0)
assert event, "Lock reward condition fulfilled event is not found, check the keeper node's logs"
# Consume using url index
# generate the grant token
grant_token = generate_access_proof_grant_token(
consumer_account, agreement_id, ddo.did, get_buyer_secret_key(),
"/access-proof")
# request access token
response = client.post("/api/v1/gateway/services/oauth/token",
data={
"grant_type":
NeverminedJWTBearerGrant.GRANT_TYPE,
"assertion": grant_token
})
access_token = response.get_json()["access_token"]
agreement = keeper.agreement_manager.get_agreement(agreement_id)
cond_ids = agreement.condition_ids
assert keeper.condition_manager.get_condition_state(
cond_ids[0]) == ConditionState.Fulfilled.value
assert keeper.condition_manager.get_condition_state(
cond_ids[1]) == ConditionState.Fulfilled.value
assert keeper.condition_manager.get_condition_state(
cond_ids[2]) == ConditionState.Fulfilled.value
endpoint = BaseURLs.ASSETS_URL + '/access-proof/%s/%d' % (agreement_id,
index)
response = client.get(
endpoint, headers={"Authorization": f"Bearer {access_token}"})
assert response.status == '200 OK'
assert len(
keeper.did_registry.get_provenance_method_events(
'USED', did_bytes=did_to_id_bytes(ddo.did))) == 1
def create(self,
metadata,
publisher_account,
service_descriptors=None,
providers=None,
authorization_type=ServiceAuthorizationTypes.PSK_RSA,
use_secret_store=False,
activity_id=None,
attributes=None,
asset_rewards={
"_amounts": [],
"_receivers": []
},
cap=None,
royalties=None):
"""
Register an asset in both the keeper's DIDRegistry (on-chain) and in the Metadata store.
:param metadata: dict conforming to the Metadata accepted by Nevermined Protocol.
:param publisher_account: Account of the publisher registering this asset
:param service_descriptors: list of ServiceDescriptor tuples of length 2.
The first item must be one of ServiceTypes and the second
item is a dict of parameters and values required by the service
:param providers: list of addresses of providers of this asset (a provider is
an ethereum account that is authorized to provide asset services)
:param authorization_type: str indicate the authorization type that is going to be used
to encrypt the urls.
SecretStore, PSK-RSA and PSK-ECDSA are supported.
:param use_secret_store: bool indicate whether to use the secret store directly for
encrypting urls (Uses Gateway provider service if set to False)
:param activity_id: identifier of the activity creating the new entity
:param attributes: attributes associated with the action
:param asset_rewards: rewards distribution including the amounts and the receivers
:param cap: max cap of nfts that can be minted for the asset
:param royalties: royalties in the secondary market going to the original creator
:return: DDO instance
"""
assert isinstance(
metadata,
dict), f'Expected metadata of type dict, got {type(metadata)}'
# copy metadata so we don't change the original
metadata_copy = copy.deepcopy(metadata)
# Create a DDO object
ddo = DDO()
gateway = GatewayProvider.get_gateway()
ddo_service_endpoint = self._get_metadata_provider(
).get_service_endpoint()
metadata_service_desc = ServiceDescriptor.metadata_service_descriptor(
metadata_copy, ddo_service_endpoint)
if metadata_copy['main']['type'] == 'dataset' or metadata_copy['main'][
'type'] == 'algorithm':
access_service_attributes = self._build_access(
metadata_copy, publisher_account, asset_rewards)
if not service_descriptors:
if authorization_type == ServiceAuthorizationTypes.PSK_RSA:
service_descriptors = [
ServiceDescriptor.authorization_service_descriptor(
self._build_authorization(
authorization_type,
public_key=gateway.get_rsa_public_key(
self._config)),
gateway.get_access_endpoint(self._config))
]
elif authorization_type == ServiceAuthorizationTypes.PSK_ECDSA:
service_descriptors = [
ServiceDescriptor.authorization_service_descriptor(
self._build_authorization(
authorization_type,
public_key=gateway.get_ecdsa_public_key(
self._config)),
gateway.get_access_endpoint(self._config))
]
else:
service_descriptors = [
ServiceDescriptor.authorization_service_descriptor(
self._build_authorization(authorization_type,
threshold=0),
self._config.secret_store_url)
]
service_descriptors += [
ServiceDescriptor.access_service_descriptor(
access_service_attributes,
gateway.get_access_endpoint(self._config))
]
else:
service_types = set(map(lambda x: x[0], service_descriptors))
if ServiceTypes.AUTHORIZATION not in service_types:
if authorization_type == ServiceAuthorizationTypes.PSK_RSA:
service_descriptors += [
ServiceDescriptor.authorization_service_descriptor(
self._build_authorization(
authorization_type,
public_key=gateway.get_rsa_public_key(
self._config)),
gateway.get_access_endpoint(self._config))
]
elif authorization_type == ServiceAuthorizationTypes.PSK_ECDSA:
service_descriptors += [
ServiceDescriptor.authorization_service_descriptor(
self._build_authorization(
authorization_type,
public_key=gateway.get_ecdsa_public_key(
self._config)),
gateway.get_access_endpoint(self._config))
]
else:
service_descriptors += [
ServiceDescriptor.authorization_service_descriptor(
self._build_authorization(authorization_type,
threshold=0),
self._config.secret_store_url)
]
else:
service_descriptors += [
ServiceDescriptor.access_service_descriptor(
access_service_attributes,
gateway.get_access_endpoint(self._config))
]
else:
if not service_descriptors:
service_descriptors = []
else:
service_descriptors += []
logger.info('registering a workflow.')
# Add all services to ddo
service_descriptors = [metadata_service_desc] + service_descriptors
services = ServiceFactory.build_services(service_descriptors)
checksums = dict()
for service in services:
checksums[str(service.index)] = checksum(service.main)
# Adding proof to the ddo.
ddo.add_proof(checksums, publisher_account)
# Generating the did and adding to the ddo.
did = ddo.assign_did(DID.did(ddo.proof['checksum']))
logger.debug(f'Generating new did: {did}')
# Check if it's already registered first!
if did in self._get_metadata_provider().list_assets():
raise DIDAlreadyExist(
f'Asset id {did} is already registered to another asset.')
for service in services:
if service.type == ServiceTypes.ASSET_ACCESS:
access_service = ServiceFactory.complete_access_service(
did, gateway.get_access_endpoint(self._config),
access_service_attributes,
self._keeper.access_template.address,
self._keeper.escrow_payment_condition.address)
ddo.add_service(access_service)
elif service.type == ServiceTypes.METADATA:
ddo_service_endpoint = service.service_endpoint.replace(
'{did}', did)
service.set_service_endpoint(ddo_service_endpoint)
ddo.add_service(service)
elif service.type == ServiceTypes.CLOUD_COMPUTE:
compute_service = ServiceFactory.complete_compute_service(
did, service.service_endpoint, service.attributes,
self._keeper.compute_execution_condition.address,
self._keeper.escrow_payment_condition.address)
ddo.add_service(compute_service)
else:
ddo.add_service(service)
ddo.proof['signatureValue'] = self._keeper.sign_hash(
add_ethereum_prefix_and_hash_msg(did_to_id_bytes(did)),
publisher_account)
# Add public key and authentication
ddo.add_public_key(did, publisher_account.address)
ddo.add_authentication(did, PUBLIC_KEY_TYPE_RSA)
# Setup metadata service
# First compute files_encrypted
if metadata_copy['main']['type'] in ['dataset', 'algorithm']:
assert metadata_copy['main'][
'files'], 'files is required in the metadata main attributes.'
logger.debug('Encrypting content urls in the metadata.')
if not use_secret_store:
encrypt_endpoint = gateway.get_encrypt_endpoint(self._config)
files_encrypted = gateway.encrypt_files_dict(
metadata_copy['main']['files'], encrypt_endpoint,
ddo.asset_id, authorization_type)
else:
files_encrypted = self._get_secret_store(publisher_account) \
.encrypt_document(
did_to_id(did),
json.dumps(metadata_copy['main']['files']),
)
# only assign if the encryption worked
if files_encrypted:
logger.debug(
f'Content urls encrypted successfully {files_encrypted}')
index = 0
for file in metadata_copy['main']['files']:
file['index'] = index
index = index + 1
del file['url']
metadata_copy['encryptedFiles'] = files_encrypted
else:
raise AssertionError('Encrypting the files failed.')
# DDO url and `Metadata` service
logger.debug(f'Generated ddo and services, DID is {ddo.did},'
f' metadata service @{ddo_service_endpoint}.')
response = None
# register on-chain
registered_on_chain = self._keeper.did_registry.register(
ddo.asset_id,
checksum=Web3Provider.get_web3().toBytes(hexstr=ddo.asset_id),
url=ddo_service_endpoint,
account=publisher_account,
cap=cap,
royalties=royalties,
providers=providers,
activity_id=activity_id,
attributes=attributes)
if registered_on_chain is False:
logger.warning(f'Registering {did} on-chain failed.')
return None
logger.info(f'Successfully registered DDO (DID={did}) on chain.')
try:
# publish the new ddo
response = self._get_metadata_provider().publish_asset_ddo(ddo)
logger.info('Asset/ddo published successfully in Metadata.')
except ValueError as ve:
raise ValueError(
f'Invalid value to publish in the metadata: {str(ve)}')
except Exception as e:
logger.error(f'Publish asset in Metadata failed: {str(e)}')
if not response:
return None
return ddo
def test_did_to_bytes():
id_test = secrets.token_hex(32)
did_test = 'did:nv:{}'.format(id_test)
id_bytes = Web3.toBytes(hexstr=id_test)
assert did_to_id_bytes(did_test) == id_bytes
assert did_to_id_bytes(id_bytes) == id_bytes
with pytest.raises(ValueError):
assert did_to_id_bytes(id_test) == id_bytes
with pytest.raises(ValueError):
assert did_to_id_bytes('0x' + id_test)
with pytest.raises(ValueError):
did_to_id_bytes(
'did:nvx:Somebadtexstwithnohexvalue0x123456789abcdecfg')
with pytest.raises(ValueError):
did_to_id_bytes('')
with pytest.raises(TypeError):
did_to_id_bytes(None)
with pytest.raises(TypeError):
did_to_id_bytes({})
with pytest.raises(TypeError):
did_to_id_bytes(42)
def register_ddo(metadata,
account,
providers,
auth_service,
additional_service_descriptors,
royalties=None,
cap=None,
mint=0):
keeper = keeper_instance()
metadata_api = Metadata('http://172.17.0.1:5000')
ddo = DDO()
ddo_service_endpoint = metadata_api.get_service_endpoint()
metadata_service_desc = ServiceDescriptor.metadata_service_descriptor(
metadata, ddo_service_endpoint)
authorization_service_attributes = {
"main": {
"service": auth_service,
"publicKey": "0xd7"
}
}
service_descriptors = [
ServiceDescriptor.authorization_service_descriptor(
authorization_service_attributes, 'http://localhost:12001')
]
service_descriptors += [metadata_service_desc]
service_descriptors += additional_service_descriptors
services = ServiceFactory.build_services(service_descriptors)
checksums = dict()
for service in services:
try:
checksums[str(service.index)] = checksum(service.main)
except Exception as e:
pass
# Adding proof to the ddo.
ddo.add_proof(checksums, account)
did_seed = checksum(ddo.proof['checksum'])
asset_id = keeper.did_registry.hash_did(did_seed, account.address)
ddo._did = DID.did(asset_id)
did = ddo._did
for service in services:
if service.type == ServiceTypes.ASSET_ACCESS or service.type == ServiceTypes.NFT_ACCESS or service.type == ServiceTypes.ASSET_ACCESS_PROOF:
access_service = ServiceFactory.complete_access_service(
did, service.service_endpoint, service.attributes,
keeper.access_template.address,
keeper.escrow_payment_condition.address, service.type)
ddo.add_service(access_service)
elif service.type == ServiceTypes.CLOUD_COMPUTE:
compute_service = ServiceFactory.complete_compute_service(
did, service.service_endpoint, service.attributes,
keeper.compute_execution_condition.address,
keeper.escrow_payment_condition.address)
ddo.add_service(compute_service)
elif service.type == ServiceTypes.NFT_SALES:
nft_sales_service = ServiceFactory.complete_nft_sales_service(
did, service.service_endpoint, service.attributes,
keeper.nft_sales_template.address,
keeper.escrow_payment_condition.address, service.type)
ddo.add_service(nft_sales_service)
else:
ddo.add_service(service)
ddo.proof['signatureValue'] = keeper.sign_hash(did_to_id_bytes(did),
account)
ddo.add_public_key(did, account.address)
ddo.add_authentication(did, PUBLIC_KEY_TYPE_RSA)
try:
_oldddo = metadata_api.get_asset_ddo(ddo.did)
if _oldddo:
metadata_api.retire_asset_ddo(ddo.did)
except ValueError:
pass
if 'files' in metadata['main']:
if auth_service == ServiceAuthorizationTypes.SECRET_STORE:
encrypted_files = do_secret_store_encrypt(
remove_0x_prefix(ddo.asset_id),
json.dumps(metadata['main']['files']), account, get_config())
elif auth_service == ServiceAuthorizationTypes.PSK_RSA:
encrypted_files, public_key = rsa_encryption_from_file(
json.dumps(metadata['main']['files']),
get_rsa_public_key_file())
else:
encrypted_files, public_key = ecdsa_encryption_from_file(
json.dumps(metadata['main']['files']), get_provider_key_file(),
get_provider_password())
_files = metadata['main']['files']
# only assign if the encryption worked
if encrypted_files:
index = 0
for file in metadata['main']['files']:
file['index'] = index
index = index + 1
del file['url']
metadata['encryptedFiles'] = encrypted_files
ddo_with_did = DDO(did,
json_text=ddo.as_text().replace('/{did}', '/' + did))
ddo_service_endpoint = ddo_service_endpoint.replace('/{did}', '/' + did)
if mint > 0 or royalties is not None or cap is not None:
keeper.did_registry.register_mintable_did(
did_seed,
checksum=web3().toBytes(hexstr=ddo.asset_id),
url=ddo_service_endpoint,
cap=cap,
royalties=royalties,
account=account,
providers=providers)
if mint > 0:
keeper.did_registry.mint(ddo.asset_id, mint, account=account)
else:
keeper_instance().did_registry.register(
did_seed,
checksum=web3().toBytes(hexstr=ddo.asset_id),
url=ddo_service_endpoint,
account=account,
providers=providers)
metadata_api.publish_asset_ddo(ddo_with_did)
return ddo_with_did