97 lines
3.0 KiB
Go
97 lines
3.0 KiB
Go
package keeper
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import (
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"fmt"
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storetypes "github.com/cosmos/cosmos-sdk/store/types"
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"github.com/tendermint/tendermint/libs/log"
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"github.com/cosmos/cosmos-sdk/codec"
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cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/slashing/types"
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)
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// Keeper of the slashing store
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type Keeper struct {
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storeKey storetypes.StoreKey
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cdc codec.BinaryCodec
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sk types.StakingKeeper
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paramspace types.ParamSubspace
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}
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// NewKeeper creates a slashing keeper
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func NewKeeper(cdc codec.BinaryCodec, key storetypes.StoreKey, sk types.StakingKeeper, paramspace types.ParamSubspace) Keeper {
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// set KeyTable if it has not already been set
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if !paramspace.HasKeyTable() {
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paramspace = paramspace.WithKeyTable(types.ParamKeyTable())
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}
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return Keeper{
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storeKey: key,
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cdc: cdc,
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sk: sk,
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paramspace: paramspace,
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}
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}
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// Logger returns a module-specific logger.
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func (k Keeper) Logger(ctx sdk.Context) log.Logger {
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return ctx.Logger().With("module", "x/"+types.ModuleName)
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}
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// AddPubkey sets a address-pubkey relation
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func (k Keeper) AddPubkey(ctx sdk.Context, pubkey cryptotypes.PubKey) error {
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bz, err := k.cdc.MarshalInterface(pubkey)
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if err != nil {
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return err
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}
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store := ctx.KVStore(k.storeKey)
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key := types.AddrPubkeyRelationKey(pubkey.Address())
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store.Set(key, bz)
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return nil
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}
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// GetPubkey returns the pubkey from the adddress-pubkey relation
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func (k Keeper) GetPubkey(ctx sdk.Context, a cryptotypes.Address) (cryptotypes.PubKey, error) {
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store := ctx.KVStore(k.storeKey)
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bz := store.Get(types.AddrPubkeyRelationKey(a))
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if bz == nil {
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return nil, fmt.Errorf("address %s not found", sdk.ConsAddress(a))
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}
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var pk cryptotypes.PubKey
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return pk, k.cdc.UnmarshalInterface(bz, &pk)
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}
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// Slash attempts to slash a validator. The slash is delegated to the staking
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// module to make the necessary validator changes.
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func (k Keeper) Slash(ctx sdk.Context, consAddr sdk.ConsAddress, fraction sdk.Dec, power, distributionHeight int64) {
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coinsBurned := k.sk.Slash(ctx, consAddr, distributionHeight, power, fraction)
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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types.EventTypeSlash,
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sdk.NewAttribute(types.AttributeKeyAddress, consAddr.String()),
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sdk.NewAttribute(types.AttributeKeyPower, fmt.Sprintf("%d", power)),
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sdk.NewAttribute(types.AttributeKeyReason, types.AttributeValueDoubleSign),
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sdk.NewAttribute(types.AttributeKeyBurnedCoins, coinsBurned.String()),
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),
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)
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}
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// Jail attempts to jail a validator. The slash is delegated to the staking module
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// to make the necessary validator changes.
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func (k Keeper) Jail(ctx sdk.Context, consAddr sdk.ConsAddress) {
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k.sk.Jail(ctx, consAddr)
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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types.EventTypeSlash,
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sdk.NewAttribute(types.AttributeKeyJailed, consAddr.String()),
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),
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)
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}
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func (k Keeper) deleteAddrPubkeyRelation(ctx sdk.Context, addr cryptotypes.Address) {
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store := ctx.KVStore(k.storeKey)
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store.Delete(types.AddrPubkeyRelationKey(addr))
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}
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