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refactor: RegisterInterchainAccount #814

Merged
merged 10 commits into from
Feb 2, 2022
Original file line number Diff line number Diff line change
Expand Up @@ -21,13 +21,20 @@ func (k Keeper) RegisterInterchainAccount(ctx sdk.Context, connectionID, owner s
return err
}

if k.portKeeper.IsBound(ctx, portID) {
return sdkerrors.Wrap(icatypes.ErrPortAlreadyBound, portID)
// if there is an active channel for this portID / connectionID return an error
activeChannelID, found := k.GetOpenActiveChannel(ctx, connectionID, portID)
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@seantking seantking Jan 28, 2022

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By checking this we're ensuring that an owner address can only have one interchain account per connection. Ideally, an owner could have many accounts per connection. I think this is fine for v1 though.

There's still nothing stopping ica-auth dev from using owner input parameter however they please though (increment a sequence & append or w/e), so it's not a total blocker anyway.

cc @AdityaSripal @colin-axner @damiannolan

if found {
return sdkerrors.Wrapf(icatypes.ErrActiveChannelAlreadySet, "existing active channel %s for portID %s on connection %s for owner %s", activeChannelID, portID, connectionID, owner)
}

cap := k.BindPort(ctx, portID)
if err := k.ClaimCapability(ctx, cap, host.PortPath(portID)); err != nil {
return sdkerrors.Wrap(err, "unable to bind to newly generated portID")
switch {
case k.portKeeper.IsBound(ctx, portID) && !k.IsBound(ctx, portID):
return sdkerrors.Wrapf(icatypes.ErrPortAlreadyBound, "another module has claimed capability for and bound port with portID: %s", portID)
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Suggested change
return sdkerrors.Wrapf(icatypes.ErrPortAlreadyBound, "another module has claimed capability for and bound port with portID: %s", portID)
return sdkerrors.Wrapf(icatypes.ErrPortAlreadyBound, "another module has claimed capability for the bound port: %s", portID)

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#828 - not to be done now, but thought this change might help in the future

case !k.portKeeper.IsBound(ctx, portID):
cap := k.BindPort(ctx, portID)
if err := k.ClaimCapability(ctx, cap, host.PortPath(portID)); err != nil {
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@seantking seantking Jan 28, 2022

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Test coverage is down as we're not covering this line. Not sure what the best way to test this is, or if we even should bother. We're already checking above to ensure the capability is not claimed.

return sdkerrors.Wrapf(err, "unable to bind to newly generated portID: %s", portID)
}
}

connectionEnd, err := k.channelKeeper.GetConnection(ctx, connectionID)
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ package keeper_test
import (
icatypes "github.com/cosmos/ibc-go/v3/modules/apps/27-interchain-accounts/types"
channeltypes "github.com/cosmos/ibc-go/v3/modules/core/04-channel/types"
host "github.com/cosmos/ibc-go/v3/modules/core/24-host"
ibctesting "github.com/cosmos/ibc-go/v3/testing"
)

Expand All @@ -22,9 +23,11 @@ func (suite *KeeperTestSuite) TestRegisterInterchainAccount() {
"success", func() {}, true,
},
{
"port is already bound",
"port is already bound for owner but capability is claimed by another module",
func() {
suite.chainA.GetSimApp().IBCKeeper.PortKeeper.BindPort(suite.chainA.GetContext(), TestPortID)
cap := suite.chainA.GetSimApp().IBCKeeper.PortKeeper.BindPort(suite.chainA.GetContext(), TestPortID)
err := suite.chainA.GetSimApp().TransferKeeper.ClaimCapability(suite.chainA.GetContext(), cap, host.PortPath(TestPortID))
suite.Require().NoError(err)
},
false,
},
Expand Down Expand Up @@ -56,7 +59,6 @@ func (suite *KeeperTestSuite) TestRegisterInterchainAccount() {
false,
},
}

for _, tc := range testCases {
tc := tc

Expand All @@ -77,7 +79,6 @@ func (suite *KeeperTestSuite) TestRegisterInterchainAccount() {
} else {
suite.Require().Error(err)
}

})
}
}
4 changes: 2 additions & 2 deletions modules/apps/27-interchain-accounts/types/errors.go
Original file line number Diff line number Diff line change
Expand Up @@ -13,8 +13,8 @@ var (
ErrInvalidRoute = sdkerrors.Register(ModuleName, 7, "invalid route")
ErrInterchainAccountNotFound = sdkerrors.Register(ModuleName, 8, "interchain account not found")
ErrInterchainAccountAlreadySet = sdkerrors.Register(ModuleName, 9, "interchain account is already set")
ErrActiveChannelNotFound = sdkerrors.Register(ModuleName, 10, "no active channel for this owner")
ErrActiveChannelAlreadySet = sdkerrors.Register(ModuleName, 11, "active channel already set for this owner")
ErrActiveChannelAlreadySet = sdkerrors.Register(ModuleName, 10, "active channel already set for this owner")
ErrActiveChannelNotFound = sdkerrors.Register(ModuleName, 11, "no active channel for this owner")
Comment on lines +16 to +17
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as a side note, this is state machine breaking (ABCI code changes), so I'd generally refrain from reorganizing error code ordering. It is hard to come up with any logical ordering when the code are grouped linearly

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That is an excellent point

ErrInvalidVersion = sdkerrors.Register(ModuleName, 12, "invalid interchain accounts version")
ErrInvalidAccountAddress = sdkerrors.Register(ModuleName, 13, "invalid account address")
ErrUnsupported = sdkerrors.Register(ModuleName, 14, "interchain account does not support this action")
Expand Down