Create Parent Proposal and use gov-created client in Handshake #5
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| package keeper | ||
|
|
||
| import ( | ||
| "encoding/binary" | ||
| "strings" | ||
| "time" | ||
|
|
||
| sdk "github.com/cosmos/cosmos-sdk/types" | ||
| clienttypes "github.com/cosmos/ibc-go/modules/core/02-client/types" | ||
| commitmenttypes "github.com/cosmos/ibc-go/modules/core/23-commitment/types" | ||
| "github.com/cosmos/ibc-go/modules/core/exported" | ||
| ibcexported "github.com/cosmos/ibc-go/modules/core/exported" | ||
| ibctmtypes "github.com/cosmos/ibc-go/modules/light-clients/07-tendermint/types" | ||
| "github.com/cosmos/interchain-security/x/ccv/parent/types" | ||
| ccv "github.com/cosmos/interchain-security/x/ccv/types" | ||
| ) | ||
|
|
||
| // CreateChildChainProposal will receive the child chain's client state from the proposal. | ||
| // If the spawn time has already passed, then set the child chain. Otherwise store the client | ||
| // as a pending client, and set once spawn time has passed. | ||
| func (k Keeper) CreateChildChainProposal(ctx sdk.Context, p *ccv.CreateChildChainProposal) error { | ||
| clientState, err := clienttypes.UnpackClientState(p.ClientState) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if ctx.BlockTime().After(p.SpawnTime) { | ||
| err = k.CreateChildClient(ctx, p.ChainId, clientState) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
AdityaSripal marked this conversation as resolved.
Show resolved
Hide resolved
|
||
| } | ||
|
|
||
| k.SetPendingClient(ctx, p.SpawnTime, p.ChainId, clientState) | ||
| return nil | ||
| } | ||
|
|
||
| // CreateChildClient will create the CCV client for the given child chain. The CCV channel must be built | ||
| // on top of the CCV client to ensure connection with the right child chain. | ||
| func (k Keeper) CreateChildClient(ctx sdk.Context, chainID string, clientState ibcexported.ClientState) error { | ||
| // TODO: Allow for current validators to set different keys | ||
| consensusState := ibctmtypes.NewConsensusState(ctx.BlockTime(), commitmenttypes.NewMerkleRoot([]byte(ibctmtypes.SentinelRoot)), ctx.BlockHeader().NextValidatorsHash) | ||
| clientID, err := k.clientKeeper.CreateClient(ctx, clientState, consensusState) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| k.SetChildClient(ctx, chainID, clientID) | ||
| return nil | ||
| } | ||
|
|
||
| // SetChildClient sets the clientID for the given chainID | ||
| func (k Keeper) SetChildClient(ctx sdk.Context, chainID, clientID string) { | ||
| store := ctx.KVStore(k.storeKey) | ||
| store.Set(types.ChainToClientKey(chainID), []byte(clientID)) | ||
| } | ||
|
|
||
| // GetChildClient returns the clientID for the given chainID. | ||
| func (k Keeper) GetChildClient(ctx sdk.Context, chainID string) string { | ||
| store := ctx.KVStore(k.storeKey) | ||
| return string(store.Get(types.ChainToClientKey(chainID))) | ||
| } | ||
|
|
||
| // SetPendingClient sets an IdentifiedClient for the given timestamp | ||
| func (k Keeper) SetPendingClient(ctx sdk.Context, timestamp time.Time, chainID string, clientState ibcexported.ClientState) error { | ||
| store := ctx.KVStore(k.storeKey) | ||
| bz, err := k.cdc.MarshalInterface(clientState) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| store.Set(types.PendingClientKey(timestamp, chainID), bz) | ||
| return nil | ||
| } | ||
|
|
||
| // GetPendingClient gets an IdentifiedClient for the given timestamp | ||
| func (k Keeper) GetPendingClient(ctx sdk.Context, timestamp time.Time, chainID string) ibcexported.ClientState { | ||
| store := ctx.KVStore(k.storeKey) | ||
| bz := store.Get(types.PendingClientKey(timestamp, chainID)) | ||
| if bz == nil { | ||
AdityaSripal marked this conversation as resolved.
Show resolved
Hide resolved
|
||
| return nil | ||
| } | ||
| return clienttypes.MustUnmarshalClientState(k.cdc, bz) | ||
| } | ||
|
|
||
| // IteratePendingClients iterates over the pending clients in order and sets the child client if the spawn time has passed, | ||
| // otherwise it will break out of loop and return. | ||
| func (k Keeper) IteratePendingClients(ctx sdk.Context) { | ||
| store := ctx.KVStore(k.storeKey) | ||
| iterator := sdk.KVStorePrefixIterator(store, []byte(types.PendingClientKeyPrefix+"/")) | ||
| defer iterator.Close() | ||
|
|
||
| if !iterator.Valid() { | ||
| return | ||
| } | ||
|
|
||
| for ; iterator.Valid(); iterator.Next() { | ||
| suffixKey := iterator.Key() | ||
| // splitKey contains the bigendian time in the first element and the chainID in the second element/ | ||
| splitKey := strings.Split(string(suffixKey), "/") | ||
|
|
||
| timeNano := binary.BigEndian.Uint64([]byte(splitKey[0])) | ||
| spawnTime := time.Unix(0, int64(timeNano)) | ||
| var cs exported.ClientState | ||
| k.cdc.UnmarshalInterface(iterator.Value(), cs) | ||
|
|
||
| if ctx.BlockTime().After(spawnTime) { | ||
| k.CreateChildClient(ctx, splitKey[1], cs) | ||
| } else { | ||
| break | ||
| } | ||
| } | ||
| } | ||
Oops, something went wrong.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
I assume the chain created in this repo is able to be both parent and child, correct?
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Correct, though I believe the default genesis disables the child module.