59aadf42aa
Merges the keybase and Ledger code from go-crypto (which is no more) into the SDK Adds support for Ledger into gaiacli Cherry-picks updated error handling from #1158
60 lines
2.1 KiB
Go
60 lines
2.1 KiB
Go
package keeper
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import (
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"fmt"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/tendermint/tendermint/crypto"
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)
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// NOTE the current slash functionality doesn't take into consideration unbonding/rebonding records
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// or the time of breach. This will be updated in slashing v2
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// slash a validator
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func (k Keeper) Slash(ctx sdk.Context, pubkey crypto.PubKey, height int64, fraction sdk.Rat) {
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// TODO height ignored for now, see https://github.com/cosmos/cosmos-sdk/pull/1011#issuecomment-390253957
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validator, found := k.GetValidatorByPubKey(ctx, pubkey)
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if !found {
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panic(fmt.Errorf("Attempted to slash a nonexistent validator with address %s", pubkey.Address()))
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}
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sharesToRemove := validator.PoolShares.Amount.Mul(fraction)
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pool := k.GetPool(ctx)
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validator, pool, burned := validator.RemovePoolShares(pool, sharesToRemove)
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k.SetPool(ctx, pool) // update the pool
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k.UpdateValidator(ctx, validator) // update the validator, possibly kicking it out
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logger := ctx.Logger().With("module", "x/stake")
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logger.Info(fmt.Sprintf("Validator %s slashed by fraction %v, removed %v shares and burned %d tokens", pubkey.Address(), fraction, sharesToRemove, burned))
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return
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}
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// revoke a validator
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func (k Keeper) Revoke(ctx sdk.Context, pubkey crypto.PubKey) {
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validator, found := k.GetValidatorByPubKey(ctx, pubkey)
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if !found {
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panic(fmt.Errorf("Validator with pubkey %s not found, cannot revoke", pubkey))
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}
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validator.Revoked = true
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k.UpdateValidator(ctx, validator) // update the validator, now revoked
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logger := ctx.Logger().With("module", "x/stake")
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logger.Info(fmt.Sprintf("Validator %s revoked", pubkey.Address()))
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return
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}
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// unrevoke a validator
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func (k Keeper) Unrevoke(ctx sdk.Context, pubkey crypto.PubKey) {
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validator, found := k.GetValidatorByPubKey(ctx, pubkey)
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if !found {
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panic(fmt.Errorf("Validator with pubkey %s not found, cannot unrevoke", pubkey))
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}
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validator.Revoked = false
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k.UpdateValidator(ctx, validator) // update the validator, now unrevoked
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logger := ctx.Logger().With("module", "x/stake")
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logger.Info(fmt.Sprintf("Validator %s unrevoked", pubkey.Address()))
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return
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}
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