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move membership functions to own file
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,165 @@ | ||
| use client_common::{VerifyMembershipArgs, VerifyNonMembershipArgs}; | ||
| use common_types::{ | ||
| channel_types::{channel, channel_counterparty}, | ||
| connection_types::connection_end, | ||
| ConnectionHops, Timestamp, | ||
| }; | ||
|
|
||
| use crate::{ | ||
| channel_libs::packet_types::{MsgTimeoutOnClose, TimeoutArgs}, | ||
| client_interface, | ||
| }; | ||
|
|
||
| multiversx_sc::imports!(); | ||
|
|
||
| #[multiversx_sc::module] | ||
| pub trait MembershipModule: | ||
| host::module_manager::ModuleManagerModule | ||
| + host::storage::StorageModule | ||
| + host::commitment::CommitmentModule | ||
| + common_modules::utils::UtilsModule | ||
| { | ||
| fn check_channel_membership( | ||
| &self, | ||
| ordering: channel::Order, | ||
| client_impl: ManagedAddress, | ||
| connection_info: &connection_end::Data<Self::Api>, | ||
| timeout_args: &dyn TimeoutArgs<Self::Api>, | ||
| ) { | ||
| match ordering { | ||
| channel::Order::Ordered => { | ||
| self.check_channel_ordered_membership(client_impl, connection_info, timeout_args) | ||
| } | ||
| channel::Order::Unordered => { | ||
| self.check_channel_unordered_membership(client_impl, connection_info, timeout_args) | ||
| } | ||
| channel::Order::NoneUnspecified => sc_panic!("Unknown channel order"), | ||
| }; | ||
| } | ||
|
|
||
| fn check_channel_ordered_membership( | ||
| &self, | ||
| client_impl: ManagedAddress, | ||
| connection_info: &connection_end::Data<Self::Api>, | ||
| timeout_args: &dyn TimeoutArgs<Self::Api>, | ||
| ) { | ||
| let packet = timeout_args.get_packet(); | ||
| require!( | ||
| packet.sequence >= timeout_args.get_next_seq_recv(), | ||
| "Packet may already be received" | ||
| ); | ||
|
|
||
| let encoded_value = self.encode_to_buffer(&timeout_args.get_next_seq_recv()); | ||
| let membership_args = VerifyMembershipArgs { | ||
| client_id: connection_info.client_id.clone(), | ||
| height: timeout_args.get_proof_height(), | ||
| delay_time_period: connection_info.delay_period, | ||
| delay_block_period: self.calculate_block_delay(connection_info.delay_period), | ||
| proof: timeout_args.get_proof().clone(), | ||
| prefix: connection_info.counterparty.prefix.key_prefix.clone(), | ||
| path: self.get_next_seq_recv_commitment_path(&packet.dest_port, &packet.dest_channel), | ||
| value: encoded_value, | ||
| }; | ||
| let membership_result: bool = self | ||
| .generic_client_proxy_impl_membership(client_impl) | ||
| .verify_membership(membership_args) | ||
| .execute_on_dest_context(); | ||
| require!(membership_result, "Failed to verify next seq receive"); | ||
|
|
||
| self.channel_info(&packet.source_port, &packet.source_channel) | ||
| .update(|channel_info| channel_info.channel.state = channel::State::Closed); | ||
| } | ||
|
|
||
| fn check_channel_unordered_membership( | ||
| &self, | ||
| client_impl: ManagedAddress, | ||
| connection_info: &connection_end::Data<Self::Api>, | ||
| timeout_args: &dyn TimeoutArgs<Self::Api>, | ||
| ) { | ||
| let packet = timeout_args.get_packet(); | ||
| let path = self.get_packet_receipt_commitment_path( | ||
| &packet.dest_port, | ||
| &packet.dest_channel, | ||
| packet.sequence, | ||
| ); | ||
| let non_membership_args = VerifyNonMembershipArgs { | ||
| client_id: connection_info.client_id.clone(), | ||
| height: timeout_args.get_proof_height(), | ||
| delay_time_period: connection_info.delay_period, | ||
| delay_block_period: self.calculate_block_delay(connection_info.delay_period), | ||
| proof: timeout_args.get_proof().clone(), | ||
| prefix: connection_info.counterparty.prefix.key_prefix.clone(), | ||
| path, | ||
| }; | ||
| let non_membership_result: bool = self | ||
| .generic_client_proxy_impl_membership(client_impl) | ||
| .verify_non_membership(non_membership_args) | ||
| .execute_on_dest_context(); | ||
| require!( | ||
| non_membership_result, | ||
| "Failed to verify packet receipt absence" | ||
| ); | ||
| } | ||
|
|
||
| fn check_expected_channel_membership( | ||
| &self, | ||
| client_impl: ManagedAddress, | ||
| channel: &channel::Data<Self::Api>, | ||
| connection_info: &connection_end::Data<Self::Api>, | ||
| args: &MsgTimeoutOnClose<Self::Api>, | ||
| ) { | ||
| let expected_channel = channel::Data { | ||
| state: channel::State::Closed, | ||
| ordering: channel.ordering, | ||
| counterparty: channel_counterparty::Data { | ||
| port_id: args.packet.source_port.clone(), | ||
| channel_id: args.packet.source_channel.clone(), | ||
| }, | ||
| connection_hops: ConnectionHops::from_single_item( | ||
| connection_info.counterparty.connection_id.clone(), | ||
| ), | ||
| version: channel.version.clone(), | ||
| upgrade_sequence: args.counterparty_upgrade_seq, | ||
| }; | ||
|
|
||
| let encoded_value = self.encode_to_buffer(&expected_channel); | ||
| let membership_args = VerifyMembershipArgs { | ||
| client_id: connection_info.client_id.clone(), | ||
| height: args.proof_height, | ||
| delay_time_period: connection_info.delay_period, | ||
| delay_block_period: self.calculate_block_delay(connection_info.delay_period), | ||
| proof: args.proof_close.clone(), | ||
| prefix: connection_info.counterparty.prefix.key_prefix.clone(), | ||
| path: self.get_next_seq_recv_commitment_path( | ||
| &args.packet.dest_port, | ||
| &args.packet.dest_channel, | ||
| ), | ||
| value: encoded_value, | ||
| }; | ||
| let membership_result: bool = self | ||
| .generic_client_proxy_impl_membership(client_impl) | ||
| .verify_membership(membership_args) | ||
| .execute_on_dest_context(); | ||
| require!(membership_result, "Failed to verify channel state"); | ||
| } | ||
|
|
||
| /// calculates the block delay based on the expected time per block | ||
| fn calculate_block_delay(&self, time_delay: Timestamp) -> Timestamp { | ||
| if time_delay == 0 { | ||
| return 0; | ||
| } | ||
|
|
||
| let host_info = self.host_info().get(); | ||
| if host_info.expected_time_per_block == 0 { | ||
| return 0; | ||
| } | ||
|
|
||
| (time_delay + host_info.expected_time_per_block - 1) / host_info.expected_time_per_block | ||
| } | ||
|
|
||
| #[proxy] | ||
| fn generic_client_proxy_impl_membership( | ||
| &self, | ||
| sc_address: ManagedAddress, | ||
| ) -> client_interface::generic_client_proxy::GenericClientProxy<Self::Api>; | ||
| } |
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