def _get_channel_state_from_server(self, grpc_channel, channel_id):
# Compile protobuf if needed
codegen_dir = Path.home().joinpath(".snet", "mpe_client", "state_service")
proto_dir = Path(__file__).absolute().parent.joinpath("resources", "proto")
if (not codegen_dir.joinpath("state_service_pb2.py").is_file()):
compile_proto(proto_dir, codegen_dir, proto_file = "state_service.proto")
# make PaymentChannelStateService.GetChannelState call to the daemon
stub_class, request_class, _ = import_protobuf_from_dir(codegen_dir, "GetChannelState")
message = self.w3.soliditySha3(["uint256"], [channel_id])
signature = self.ident.sign_message_after_soliditySha3(message)
request = request_class(channel_id = self.w3.toBytes(channel_id), signature = bytes(signature))
stub = stub_class(grpc_channel)
response = getattr(stub, "GetChannelState")(request)
# convert bytes to int
state = dict()
state["current_nonce"] = int.from_bytes(response.current_nonce, byteorder='big')
state["current_signed_amount"] = int.from_bytes(response.current_signed_amount, byteorder='big')
if (state["current_signed_amount"] > 0):
good = self._verify_my_signature(bytes(response.current_signature), self.get_mpe_address(), channel_id, state["current_nonce"], state["current_signed_amount"])
if (not good):
raise Exception("Error in _get_channel_state_from_server. My own signature from the server is not valid.")
return state
def _get_channel_state_from_server(self, grpc_channel, channel_id):
# Compile protobuf if needed
codegen_dir = Path.home().joinpath(".snet", "mpe_client", "state_service")
proto_dir = Path(__file__).absolute().parent.joinpath("resources", "proto")
if (not codegen_dir.joinpath("state_service_pb2.py").is_file()):
compile_proto(proto_dir, codegen_dir, proto_file = "state_service.proto")
# make PaymentChannelStateService.GetChannelState call to the daemon
stub_class, request_class, _ = import_protobuf_from_dir(codegen_dir, "GetChannelState")
message = self.w3.soliditySha3(["uint256"], [channel_id])
signature = self.ident.sign_message_after_soliditySha3(message)
request = request_class(channel_id = self.w3.toBytes(channel_id), signature = bytes(signature))
stub = stub_class(grpc_channel)
response = getattr(stub, "GetChannelState")(request)
# convert bytes to int
state = dict()
state["current_nonce"] = int.from_bytes(response.current_nonce, byteorder='big')
state["current_signed_amount"] = int.from_bytes(response.current_signed_amount, byteorder='big')
if (state["current_signed_amount"] > 0):
good = self._verify_my_signature(bytes(response.current_signature), self.get_mpe_address(), channel_id, state["current_nonce"], state["current_signed_amount"])
if (not good):
raise Exception("Error in _get_channel_state_from_server. My own signature from the server is not valid.")
return state
def _get_stub_and_request_classes(self, service_name):
""" import protobuf and return stub and request class """
# Compile protobuf if needed
codegen_dir = Path.home().joinpath(".snet", "mpe_client", "control_service")
proto_dir = Path(__file__).absolute().parent.joinpath("resources", "proto")
if (not codegen_dir.joinpath("control_service_pb2.py").is_file()):
compile_proto(proto_dir, codegen_dir, proto_file = "control_service.proto")
stub_class, request_class, _ = import_protobuf_from_dir(codegen_dir, service_name)
return stub_class, request_class
def install_and_compile_proto():
import snet_cli
from snet_cli.utils import compile_proto as compile_proto
from pathlib import Path
proto_dir = Path(__file__).absolute().parent.joinpath("snet_cli", "resources", "proto")
dest_dir = Path(snet_cli.__file__).absolute().parent.joinpath("resources", "proto")
print(proto_dir, "->", dest_dir)
for fn in proto_dir.glob('*.proto'):
print("Compiling protobuf", fn)
compile_proto(proto_dir, dest_dir, proto_file=fn)
def install_and_compile_proto():
import snet_cli
from snet_cli.utils import compile_proto as compile_proto
from pathlib import Path
proto_dir = Path(__file__).absolute().parent.joinpath("snet_cli", "resources", "proto")
dest_dir = Path(snet_cli.__file__).absolute().parent.joinpath("resources", "proto")
print(proto_dir, "->", dest_dir)
for fn in proto_dir.glob('*.proto'):
print("Compiling protobuf", fn)
compile_proto(proto_dir, dest_dir, proto_file=fn)
def import_grpc_modules(spec_hash):
spec_dir = Path("~").expanduser().joinpath(".snet").joinpath(
"service_spec").joinpath(spec_hash)
codegen_dir = Path("~").expanduser().joinpath(".snet").joinpath(
"py-codegen").joinpath(spec_hash)
sys.path.append(str(codegen_dir))
compile_proto(spec_dir, codegen_dir)
mods = []
for p in codegen_dir.glob("*_pb2*"):
m = importlib.import_module(p.name.replace(".py", ""))
mods.append(m)
return mods
def _get_stub_and_request_classes(self, service_name):
""" import protobuf and return stub and request class """
# Compile protobuf if needed
codegen_dir = Path.home().joinpath(".snet", "mpe_client",
"control_service")
proto_dir = Path(__file__).absolute().parent.joinpath(
"resources", "proto")
if (not codegen_dir.joinpath("control_service_pb2.py").is_file()):
compile_proto(proto_dir,
codegen_dir,
proto_file="control_service.proto")
stub_class, request_class, _ = import_protobuf_from_dir(
codegen_dir, service_name)
return stub_class, request_class
def _init_channel_from_metadata(self, channel_dir, metadata, channel_info):
self._check_mpe_address_metadata(metadata)
if (os.path.exists(channel_dir)):
raise Exception("Directory %s already exists" % channel_dir)
os.makedirs(channel_dir, mode=0o700)
try:
spec_dir = os.path.join(channel_dir, "service_spec")
os.makedirs(spec_dir, mode=0o700)
safe_extract_proto_from_ipfs(self._get_ipfs_client(),
metadata["model_ipfs_hash"], spec_dir)
# compile .proto files
if (not compile_proto(Path(spec_dir), channel_dir)):
raise Exception("Fail to compile %s/*.proto" % spec_dir)
# save service_metadata.json in channel_dir
metadata.save_pretty(
os.path.join(channel_dir, "service_metadata.json"))
# save channel_info (we need sender and signer)
self._save_channel_info_dir(channel_dir, channel_info)
except:
# it is secure to remove channel_dir, because we've created it
shutil.rmtree(channel_dir)
raise
def _init_channel_from_metadata(self, channel_dir, metadata):
self._check_mpe_address_metadata(metadata)
if (os.path.exists(channel_dir)):
raise Exception("Directory %s already exists" % channel_dir)
os.makedirs(channel_dir)
try:
spec_dir = os.path.join(channel_dir, "service_spec")
os.makedirs(spec_dir)
# take tar of .proto files from ipfs and extract them to channel_dir/service_spec
spec_tar = get_from_ipfs_and_checkhash(self._get_ipfs_client(),
metadata["model_ipfs_hash"])
with tarfile.open(fileobj=io.BytesIO(spec_tar)) as f:
f.extractall(spec_dir)
# compile .proto files
if (not compile_proto(Path(spec_dir), channel_dir)):
raise Exception("Fail to compile %s/*.proto" % spec_dir)
# save service_metadata.json in channel_dir
metadata.save_pretty(
os.path.join(channel_dir, "service_metadata.json"))
except:
# it is secure to remove channel_dir, because we've created it
shutil.rmtree(channel_dir)
raise
def _init_or_update_service_if_needed(self, metadata, service_registration):
# if service was already initialized and metadataURI hasn't changed we do nothing
if self.is_service_initialized():
if self.is_metadataURI_has_changed(service_registration):
self._printerr("# Service with org_id=%s and service_id=%s was updated"%(self.args.org_id, self.args.service_id))
self._printerr("# ATTENTION!!! price or other paramaters might have been changed!\n")
else:
return # we do nothing
self._printerr("# Initilize service with org_id=%s and service_id=%s"%(self.args.org_id, self.args.service_id))
self._check_mpe_address_metadata(metadata)
service_dir = self.get_service_spec_dir(self.args.org_id, self.args.service_id)
# remove old service_dir
# it is relatevely safe to remove service_dir because we know that service_dir = self.get_service_spec_dir() so it is not a normal dir
if (os.path.exists(service_dir)):
shutil.rmtree(service_dir)
os.makedirs(service_dir, mode=0o700)
try:
spec_dir = os.path.join(service_dir, "service_spec")
os.makedirs(spec_dir, mode=0o700)
safe_extract_proto_from_ipfs(self._get_ipfs_client(), metadata["model_ipfs_hash"], spec_dir)
# compile .proto files
if (not compile_proto(Path(spec_dir), service_dir)):
raise Exception("Fail to compile %s/*.proto"%spec_dir)
# save service_metadata.json in channel_dir
metadata.save_pretty(os.path.join(service_dir, "service_metadata.json"))
except:
# it is secure to remove channel_dir, because we've created it
shutil.rmtree(service_dir)
raise
self._save_service_info(self.args.org_id, self.args.service_id, service_registration)
def _init_or_update_service_if_needed(self, metadata,
service_registration):
# if service was already initialized and metadataURI hasn't changed we do nothing
if self.is_service_initialized():
if self.is_metadataURI_has_changed(service_registration):
self._printerr(
"# Service with org_id=%s and service_id=%s was updated" %
(self.args.org_id, self.args.service_id))
self._printerr(
"# ATTENTION!!! price or other paramaters might have been changed!\n"
)
else:
return # we do nothing
self._printerr("# Initilize service with org_id=%s and service_id=%s" %
(self.args.org_id, self.args.service_id))
self._check_mpe_address_metadata(metadata)
service_dir = self.get_service_spec_dir(self.args.org_id,
self.args.service_id)
# remove old service_dir
# it is relatevely safe to remove service_dir because we know that service_dir = self.get_service_spec_dir() so it is not a normal dir
if (os.path.exists(service_dir)):
shutil.rmtree(service_dir)
os.makedirs(service_dir, mode=0o700)
try:
spec_dir = os.path.join(service_dir, "service_spec")
os.makedirs(spec_dir, mode=0o700)
safe_extract_proto_from_ipfs(self._get_ipfs_client(),
metadata["model_ipfs_hash"], spec_dir)
# compile .proto files
if (not compile_proto(Path(spec_dir), service_dir)):
raise Exception("Fail to compile %s/*.proto" % spec_dir)
# save service_metadata.json in channel_dir
metadata.save_pretty(
os.path.join(service_dir, "service_metadata.json"))
except:
# it is secure to remove channel_dir, because we've created it
shutil.rmtree(service_dir)
raise
self._save_service_info(self.args.org_id, self.args.service_id,
service_registration)
from snet_cli.utils import compile_proto, DefaultAttributeObject
from concurrent import futures
import time
import web3
from snet_cli.mpe_channel_command import MPEChannelCommand
from snet_cli.config import Config
compile_proto("../service_spec1", ".", proto_file="ExampleService.proto")
compile_proto("../../../snet_cli/resources/proto/",
".",
proto_file="state_service.proto")
compile_proto("../../../snet_cli/resources/proto/",
".",
proto_file="control_service.proto")
PRICE = 10000
import grpc
import ExampleService_pb2
import ExampleService_pb2_grpc
import state_service_pb2
import state_service_pb2_grpc
import control_service_pb2
import control_service_pb2_grpc
payments_unclaimed = dict()
payments_in_progress = dict()
def compile_protobuf_from_dir(self):
codegen_dir = self.get_channel_dir()
if (not compile_proto(Path(self.args.proto_dir), codegen_dir)):
self._error("Fail to compile %s/*.proto"%self.args.proto_dir)
from snet_cli.utils import compile_proto, DefaultAttributeObject
from concurrent import futures
import time
import web3
from snet_cli.mpe_channel_command import MPEChannelCommand
from snet_cli.config import Config
compile_proto("../service_spec1", ".", proto_file = "ExampleService.proto")
compile_proto("../../../snet_cli/resources/proto/", ".", proto_file = "state_service.proto")
compile_proto("../../../snet_cli/resources/proto/", ".", proto_file = "control_service.proto")
PRICE = 10000
import grpc
import ExampleService_pb2
import ExampleService_pb2_grpc
import state_service_pb2
import state_service_pb2_grpc
import control_service_pb2
import control_service_pb2_grpc
payments_unclaimed = dict()
payments_in_progress = dict()
# we use MPEChannelCommand._get_channel_state_from_blockchain to get channel state from blockchain
# we need it to remove already claimed payments from payments_in_progress
# remove all payments_in_progress with nonce < blockchain nonce
def remove_already_claimed_payments():
def generate_client_library(self):
cur_dir_path = PurePath(os.getcwd())
if not self.args.protodir:
client_libraries_base_dir_path = cur_dir_path.joinpath("client_libraries")
if not os.path.exists(client_libraries_base_dir_path):
os.makedirs(client_libraries_base_dir_path)
else:
if os.path.isabs(self.args.protodir):
client_libraries_base_dir_path = PurePath(self.args.protodir)
else:
client_libraries_base_dir_path = cur_dir_path.joinpath(self.args.protodir)
if not os.path.isdir(client_libraries_base_dir_path):
self._error("directory {} does not exist. Please make sure that the specified path exists".format(client_libraries_base_dir_path))
# Create service client libraries path
library_language = self.args.language
library_org_id = self.args.org_id
library_service_id = self.args.service_id
library_dir_path = client_libraries_base_dir_path.joinpath(library_language, get_contract_address(self, "Registry"), library_org_id, library_service_id)
metadata = self._get_service_metadata_from_registry()
model_ipfs_hash = metadata["model_ipfs_hash"]
with TemporaryDirectory() as temp_dir:
temp_dir_path = PurePath(temp_dir)
proto_temp_dir_path = temp_dir_path.joinpath(library_language, library_org_id, library_service_id)
safe_extract_proto_from_ipfs(self._get_ipfs_client(), model_ipfs_hash, proto_temp_dir_path)
# Compile proto files
compile_proto(Path(proto_temp_dir_path), library_dir_path)
self._printout('client libraries for service with id "{}" in org with id "{}" generated at {}'.format(library_service_id, library_org_id, library_dir_path))
