def restore_channel(self, serialized_channel): token_address = serialized_channel.token_address netting_channel = self.chain.netting_channel( serialized_channel.channel_address, ) # restoring balances from the BC since the serialized value could be # falling behind. channel_details = netting_channel.detail(self.address) # our_address is checked by detail assert channel_details['partner_address'] == serialized_channel.partner_address opened_block = netting_channel.opened() our_state = ChannelEndState( channel_details['our_address'], channel_details['our_balance'], opened_block, ) partner_state = ChannelEndState( channel_details['partner_address'], channel_details['partner_balance'], opened_block, ) def register_channel_for_hashlock(channel, hashlock): self.register_channel_for_hashlock( token_address, channel, hashlock, ) external_state = ChannelExternalState( register_channel_for_hashlock, netting_channel, ) details = ChannelDetails( serialized_channel.channel_address, our_state, partner_state, external_state, serialized_channel.reveal_timeout, channel_details['settle_timeout'], ) graph = self.token_to_channelgraph[token_address] graph.add_channel(details) channel = graph.address_to_channel.get( serialized_channel.channel_address, ) channel.our_state.balance_proof = serialized_channel.our_balance_proof channel.partner_state.balance_proof = serialized_channel.partner_balance_proof
def get_channel_details(self, token_address, netting_channel): channel_details = netting_channel.detail() our_state = ChannelEndState( channel_details['our_address'], channel_details['our_balance'], None, EMPTY_MERKLE_TREE, ) partner_state = ChannelEndState( channel_details['partner_address'], channel_details['partner_balance'], None, EMPTY_MERKLE_TREE, ) def register_channel_for_hashlock(channel, hashlock): self.register_channel_for_hashlock( token_address, channel, hashlock, ) channel_address = netting_channel.address reveal_timeout = self.config['reveal_timeout'] settle_timeout = channel_details['settle_timeout'] external_state = ChannelExternalState( register_channel_for_hashlock, netting_channel, ) channel_detail = ChannelDetails( channel_address, our_state, partner_state, external_state, reveal_timeout, settle_timeout, ) return channel_detail
def test_addchannel_must_not_overwrite(): # pylint: disable=too-many-locals """ Calling add_channel for an existing channel must not overwrite it. """ our_address = make_address() partner_address = make_address() channel_manager_address = make_address() token_address = make_address() channel_address = make_address() our_state = ParticipantStateMock(our_address) partner_state = ParticipantStateMock(partner_address) netting_channel = NettingChannelMock(channel_address) external_state = ExternalStateMock(netting_channel) reveal_timeout = 5 settle_timeout = 10 channel_detail = ChannelDetails( channel_address, our_state, partner_state, external_state, reveal_timeout, settle_timeout, ) edge_list = [] channel_detail_list = [channel_detail] graph = ChannelGraph( our_address, channel_manager_address, token_address, edge_list, channel_detail_list, ) first_instance = graph.address_to_channel[channel_address] graph.add_channel(channel_detail) assert first_instance is graph.address_to_channel[channel_address]
def restore_channel(self, serialized_channel): token_address = serialized_channel.token_address netting_channel = self.chain.netting_channel( serialized_channel.channel_address, ) # restoring balances from the blockchain since the serialized # value could be falling behind. channel_details = netting_channel.detail() # our_address is checked by detail assert channel_details[ 'partner_address'] == serialized_channel.partner_address if serialized_channel.our_leaves: our_layers = compute_layers(serialized_channel.our_leaves) our_tree = MerkleTreeState(our_layers) else: our_tree = EMPTY_MERKLE_TREE our_state = ChannelEndState( channel_details['our_address'], channel_details['our_balance'], serialized_channel.our_balance_proof, our_tree, ) if serialized_channel.partner_leaves: partner_layers = compute_layers(serialized_channel.partner_leaves) partner_tree = MerkleTreeState(partner_layers) else: partner_tree = EMPTY_MERKLE_TREE partner_state = ChannelEndState( channel_details['partner_address'], channel_details['partner_balance'], serialized_channel.partner_balance_proof, partner_tree, ) def register_channel_for_hashlock(channel, hashlock): self.register_channel_for_hashlock( token_address, channel, hashlock, ) external_state = ChannelExternalState( register_channel_for_hashlock, netting_channel, ) details = ChannelDetails( serialized_channel.channel_address, our_state, partner_state, external_state, serialized_channel.reveal_timeout, channel_details['settle_timeout'], ) graph = self.token_to_channelgraph[token_address] graph.add_channel(details) channel = graph.address_to_channel.get( serialized_channel.channel_address, ) channel.our_state.balance_proof = serialized_channel.our_balance_proof channel.partner_state.balance_proof = serialized_channel.partner_balance_proof