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use crate::{core::ics24_host::path::ChannelEndPath, prelude::*};
use crate::core::ics04_channel::channel::State;
use crate::core::ics04_channel::error::ChannelError;
use crate::core::ics04_channel::events::CloseConfirm;
use crate::core::ics04_channel::handler::chan_close_confirm;
use crate::core::ics04_channel::msgs::chan_close_confirm::MsgChannelCloseConfirm;
use crate::core::ics26_routing::context::ModuleId;
use crate::events::IbcEvent;
use super::{ContextError, ExecutionContext, ValidationContext};
pub(super) fn chan_close_confirm_validate<ValCtx>(
ctx_b: &ValCtx,
module_id: ModuleId,
msg: MsgChannelCloseConfirm,
) -> Result<(), ContextError>
where
ValCtx: ValidationContext,
{
chan_close_confirm::validate(ctx_b, &msg)?;
let module = ctx_b
.get_route(&module_id)
.ok_or(ChannelError::RouteNotFound)?;
module.on_chan_close_confirm_validate(&msg.port_id_on_b, &msg.chan_id_on_b)?;
Ok(())
}
pub(super) fn chan_close_confirm_execute<ExecCtx>(
ctx_b: &mut ExecCtx,
module_id: ModuleId,
msg: MsgChannelCloseConfirm,
) -> Result<(), ContextError>
where
ExecCtx: ExecutionContext,
{
let module = ctx_b
.get_route_mut(&module_id)
.ok_or(ChannelError::RouteNotFound)?;
let extras = module.on_chan_close_confirm_execute(&msg.port_id_on_b, &msg.chan_id_on_b)?;
let chan_end_path_on_b = ChannelEndPath::new(&msg.port_id_on_b, &msg.chan_id_on_b);
let chan_end_on_b = ctx_b.channel_end(&chan_end_path_on_b)?;
{
let chan_end_on_b = {
let mut chan_end_on_b = chan_end_on_b.clone();
chan_end_on_b.set_state(State::Closed);
chan_end_on_b
};
ctx_b.store_channel(&chan_end_path_on_b, chan_end_on_b)?;
}
{
ctx_b.log_message("success: channel close confirm".to_string());
let core_event = {
let port_id_on_a = chan_end_on_b.counterparty().port_id.clone();
let chan_id_on_a = chan_end_on_b
.counterparty()
.channel_id
.clone()
.ok_or(ContextError::ChannelError(ChannelError::Other {
description:
"internal error: ChannelEnd doesn't have a counterparty channel id in CloseInit"
.to_string(),
}))?;
let conn_id_on_b = chan_end_on_b.connection_hops[0].clone();
IbcEvent::CloseConfirmChannel(CloseConfirm::new(
msg.port_id_on_b.clone(),
msg.chan_id_on_b.clone(),
port_id_on_a,
chan_id_on_a,
conn_id_on_b,
))
};
ctx_b.emit_ibc_event(core_event);
for module_event in extras.events {
ctx_b.emit_ibc_event(IbcEvent::AppModule(module_event));
}
for log_message in extras.log {
ctx_b.log_message(log_message);
}
}
Ok(())
}
#[cfg(test)]
mod tests {
use crate::applications::transfer::MODULE_ID_STR;
use crate::core::context::chan_close_confirm::chan_close_confirm_execute;
use crate::core::ics04_channel::msgs::chan_close_confirm::test_util::get_dummy_raw_msg_chan_close_confirm;
use crate::core::ics04_channel::msgs::chan_close_confirm::MsgChannelCloseConfirm;
use crate::core::ics26_routing::context::ModuleId;
use crate::core::ValidationContext;
use crate::events::IbcEvent;
use crate::prelude::*;
use crate::core::ics03_connection::connection::ConnectionEnd;
use crate::core::ics03_connection::connection::Counterparty as ConnectionCounterparty;
use crate::core::ics03_connection::connection::State as ConnectionState;
use crate::core::ics03_connection::msgs::test_util::get_dummy_raw_counterparty;
use crate::core::ics03_connection::version::get_compatible_versions;
use crate::core::ics04_channel::channel::{
ChannelEnd, Counterparty, Order, State as ChannelState,
};
use crate::core::ics04_channel::Version;
use crate::core::ics24_host::identifier::{ClientId, ConnectionId};
use crate::mock::client_state::client_type as mock_client_type;
use crate::mock::context::MockContext;
use crate::test_utils::DummyTransferModule;
use crate::timestamp::ZERO_DURATION;
#[test]
fn chan_close_confirm_event_height() {
let client_id = ClientId::new(mock_client_type(), 24).unwrap();
let conn_id = ConnectionId::new(2);
let default_context = MockContext::default();
let client_consensus_state_height = default_context.host_height().unwrap();
let conn_end = ConnectionEnd::new(
ConnectionState::Open,
client_id.clone(),
ConnectionCounterparty::try_from(get_dummy_raw_counterparty(Some(0))).unwrap(),
get_compatible_versions(),
ZERO_DURATION,
);
let msg_chan_close_confirm = MsgChannelCloseConfirm::try_from(
get_dummy_raw_msg_chan_close_confirm(client_consensus_state_height.revision_height()),
)
.unwrap();
let chan_end = ChannelEnd::new(
ChannelState::Open,
Order::default(),
Counterparty::new(
msg_chan_close_confirm.port_id_on_b.clone(),
Some(msg_chan_close_confirm.chan_id_on_b.clone()),
),
vec![conn_id.clone()],
Version::default(),
);
let mut context = default_context
.with_client(&client_id, client_consensus_state_height)
.with_connection(conn_id, conn_end)
.with_channel(
msg_chan_close_confirm.port_id_on_b.clone(),
msg_chan_close_confirm.chan_id_on_b.clone(),
chan_end,
);
let module = DummyTransferModule::new();
let module_id: ModuleId = MODULE_ID_STR.parse().unwrap();
context.add_route(module_id.clone(), module).unwrap();
let res = chan_close_confirm_execute(&mut context, module_id, msg_chan_close_confirm);
assert!(res.is_ok(), "Execution success: happy path");
assert_eq!(context.events.len(), 1);
assert!(matches!(
context.events.first().unwrap(),
&IbcEvent::CloseConfirmChannel(_)
));
}
}