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validator.go
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validator.go
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package keeper
import (
"encoding/hex"
"fmt"
"github.com/cosmos/cosmos-sdk/codec/legacy"
"github.com/cosmos/cosmos-sdk/types/bech32"
gogotypes "github.com/gogo/protobuf/types"
tmbytes "github.com/tendermint/tendermint/libs/bytes"
cryptocodec "github.com/cosmos/cosmos-sdk/crypto/codec"
cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
staking "github.com/cosmos/cosmos-sdk/x/staking/types"
"github.com/bianjieai/iritamod/modules/node/types"
cautil "github.com/bianjieai/iritamod/utils/ca"
)
// SetHooks sets the validator hooks
func (k *Keeper) SetHooks(sh staking.StakingHooks) *Keeper {
if k.hooks != nil {
panic("cannot set validator hooks twice")
}
k.hooks = sh
return k
}
// CreateValidator create a new validator
func (k Keeper) CreateValidator(ctx sdk.Context,
id tmbytes.HexBytes,
name string,
certificate string,
pubKey cryptotypes.PubKey,
power int64,
description string,
operator string,
) error {
if k.HasValidatorName(ctx, name) {
return types.ErrValidatorNameExists
}
if len(certificate) > 0 {
cert, err := k.VerifyCert(ctx, certificate)
if err != nil {
return err
}
pk, err := cautil.GetPubkeyFromCert(cert)
if err != nil {
return sdkerrors.Wrap(types.ErrInvalidCert, err.Error())
}
pubKey, err = cryptocodec.FromTmPubKeyInterface(pk)
if err != nil {
return err
}
}
if pubKey == nil {
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "certificate")
}
if _, found := k.GetValidatorByConsAddr(ctx, sdk.GetConsAddress(pubKey)); found {
return types.ErrValidatorPubkeyExists
}
operatorAddr, err := sdk.AccAddressFromBech32(operator)
if err != nil {
return sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, err.Error())
}
validator := types.NewValidator(
id,
name,
description,
pubKey,
certificate,
power,
operatorAddr,
)
k.SetValidator(ctx, validator)
consAddr, err := validator.GetConsAddr()
if err != nil {
return err
}
k.SetValidatorConsAddrIndex(ctx, id, consAddr)
k.EnqueueValidatorsUpdate(ctx, validator, power)
k.hooks.AfterValidatorCreated(ctx, validator.GetOperator())
k.hooks.AfterValidatorBonded(ctx, consAddr, validator.GetOperator())
return nil
}
// UpdateValidator updates an existing validator record
func (k Keeper) UpdateValidator(ctx sdk.Context,
id tmbytes.HexBytes,
name string,
certificate string,
power int64,
description string,
operator string,
) error {
if k.HasValidatorName(ctx, name) {
return types.ErrValidatorNameExists
}
validator, found := k.GetValidator(ctx, id)
if !found {
return types.ErrUnknownValidator
}
if len(certificate) > 0 && certificate != validator.Certificate {
cert, err := k.VerifyCert(ctx, certificate)
if err != nil {
return err
}
pk, err := cautil.GetPubkeyFromCert(cert)
if err != nil {
return sdkerrors.Wrap(types.ErrInvalidCert, err.Error())
}
pubkey, err := cryptocodec.FromTmPubKeyInterface(pk)
if err != nil {
return err
}
pkStr, err := bech32.ConvertAndEncode(sdk.GetConfig().GetBech32ConsensusPubPrefix(), legacy.Cdc.MustMarshal(pubkey))
consAddr, err := validator.GetConsAddr()
if err != nil {
return err
}
// delete pubkey related index
k.DeleteValidatorConsAddrIndex(ctx, consAddr)
// delete from tendermint validator set
k.EnqueueValidatorsUpdate(ctx, validator, 0)
validator.Pubkey = pkStr
validator.Certificate = certificate
newConsAddr, err := validator.GetConsAddr()
if err != nil {
return err
}
k.SetValidatorConsAddrIndex(ctx, id, newConsAddr)
k.EnqueueValidatorsUpdate(ctx, validator, validator.Power)
}
if power > 0 {
validator.Power = power
// override it if already exists
k.EnqueueValidatorsUpdate(ctx, validator, validator.Power)
}
if len(description) > 0 && description != types.DoNotModifyDesc {
validator.Description = description
}
if len(name) > 0 && name != types.DoNotModifyDesc {
//delete old name
store := ctx.KVStore(k.storeKey)
store.Delete(types.GetValidatorNameKey(validator.Name))
validator.Name = name
}
validator.Operator = operator
k.SetValidator(ctx, validator)
return nil
}
// RemoveValidator deletes an existing validator record
func (k Keeper) RemoveValidator(ctx sdk.Context,
id tmbytes.HexBytes,
operator string,
) error {
validator, found := k.GetValidator(ctx, id)
if !found {
return types.ErrUnknownValidator
}
k.DeleteValidator(ctx, validator)
consAddr, err := validator.GetConsAddr()
if err != nil {
return err
}
k.DeleteValidatorConsAddrIndex(ctx, consAddr)
// delete from tendermint validator set
k.EnqueueValidatorsUpdate(ctx, validator, 0)
k.hooks.AfterValidatorRemoved(ctx, consAddr, validator.GetOperator())
return nil
}
// SetValidator sets the main record holding validator details
func (k Keeper) SetValidator(ctx sdk.Context, validator types.Validator) {
store := ctx.KVStore(k.storeKey)
id, _ := hex.DecodeString(validator.Id)
// set validator by id
bz := k.cdc.MustMarshal(&validator)
store.Set(types.GetValidatorIDKey(id), bz)
bz = k.cdc.MustMarshal(&gogotypes.BytesValue{Value: id})
store.Set(types.GetValidatorNameKey(validator.Name), bz)
}
// GetValidator returns validator with id
func (k Keeper) GetValidator(ctx sdk.Context, id tmbytes.HexBytes) (validator types.Validator, found bool) {
store := ctx.KVStore(k.storeKey)
value := store.Get(types.GetValidatorIDKey(id))
if value == nil {
return validator, false
}
k.cdc.MustUnmarshal(value, &validator)
return validator, true
}
// HasValidatorName returns true or false with name
func (k Keeper) HasValidatorName(ctx sdk.Context, name string) bool {
store := ctx.KVStore(k.storeKey)
return store.Has(types.GetValidatorNameKey(name))
}
// DeleteValidator deletes the validator with id
func (k Keeper) DeleteValidator(ctx sdk.Context, validator types.Validator) {
id, _ := hex.DecodeString(validator.Id)
store := ctx.KVStore(k.storeKey)
store.Delete(types.GetValidatorIDKey(id))
store.Delete(types.GetValidatorNameKey(validator.Name))
}
// SetValidatorConsAddrIndex sets the validator index by pubkey
func (k Keeper) SetValidatorConsAddrIndex(ctx sdk.Context, id tmbytes.HexBytes, addr sdk.ConsAddress) {
store := ctx.KVStore(k.storeKey)
bz := k.cdc.MustMarshal(&gogotypes.BytesValue{Value: id})
store.Set(types.GetValidatorConsAddrKey(addr), bz)
}
// DeleteValidatorConsAddrIndex deletes the validator index with pubkey
func (k Keeper) DeleteValidatorConsAddrIndex(ctx sdk.Context, addr sdk.ConsAddress) {
store := ctx.KVStore(k.storeKey)
store.Delete(types.GetValidatorConsAddrKey(addr))
}
// GetValidatorByConsAddr returns validator with pubkey
func (k Keeper) GetValidatorByConsAddr(ctx sdk.Context, addr sdk.ConsAddress) (validator types.Validator, found bool) {
store := ctx.KVStore(k.storeKey)
value := store.Get(types.GetValidatorConsAddrKey(addr))
if value == nil {
return validator, false
}
var id gogotypes.BytesValue
k.cdc.MustUnmarshal(value, &id)
return k.GetValidator(ctx, id.Value)
}
// EnqueueValidatorsUpdate enqueue to the validators update queue
func (k Keeper) EnqueueValidatorsUpdate(ctx sdk.Context, validator types.Validator, power int64) {
// do not update this validator if already jailed
if validator.Jailed {
return
}
store := ctx.KVStore(k.storeKey)
bz := k.cdc.MustMarshal(&gogotypes.Int64Value{Value: power})
store.Set(types.GetValidatorUpdateQueueKey(validator.Pubkey), bz)
}
// DequeueValidatorsUpdate dequeue from the validators update queue
func (k Keeper) DequeueValidatorsUpdate(ctx sdk.Context, pubkey string) {
store := ctx.KVStore(k.storeKey)
store.Delete(types.GetValidatorUpdateQueueKey(pubkey))
}
// IterateUpdateValidators iterates through the validators update queue
func (k Keeper) IterateUpdateValidators(ctx sdk.Context, fn func(index int64, pubkey string, power int64) (stop bool)) {
store := ctx.KVStore(k.storeKey)
iterator := sdk.KVStorePrefixIterator(store, types.ValidatorsUpdateQueueKey)
defer iterator.Close()
i := int64(0)
for ; iterator.Valid(); iterator.Next() {
var power gogotypes.Int64Value
k.cdc.MustUnmarshal(iterator.Value(), &power)
stop := fn(i, string(iterator.Key()[1:]), power.Value)
if stop {
break
}
i++
}
}
// IterateValidators iterates through the validator set and perform the provided function
func (k Keeper) IterateValidators(ctx sdk.Context, fn func(index int64, validator staking.ValidatorI) (stop bool)) {
store := ctx.KVStore(k.storeKey)
iterator := sdk.KVStorePrefixIterator(store, types.ValidatorsKey)
defer iterator.Close()
i := int64(0)
for ; iterator.Valid(); iterator.Next() {
var validator types.Validator
k.cdc.MustUnmarshal(iterator.Value(), &validator)
stop := fn(i, validator)
if stop {
break
}
i++
}
}
// GetAllValidators gets the set of all validators with no limits, used during genesis dump
func (k Keeper) GetAllValidators(ctx sdk.Context) (validators []types.Validator) {
store := ctx.KVStore(k.storeKey)
iterator := sdk.KVStorePrefixIterator(store, types.ValidatorsKey)
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var validator types.Validator
k.cdc.MustUnmarshal(iterator.Value(), &validator)
validators = append(validators, validator)
}
return validators
}
// ValidatorByID return the validator imformation by id
func (k Keeper) ValidatorByID(ctx sdk.Context, id tmbytes.HexBytes) staking.ValidatorI {
store := ctx.KVStore(k.storeKey)
bz := store.Get(types.GetValidatorIDKey(id))
var validator types.Validator
k.cdc.MustUnmarshal(bz, &validator)
return validator
}
// Validator return the validator imformation by valAddr
func (k Keeper) Validator(ctx sdk.Context, valAddr sdk.ValAddress) staking.ValidatorI {
return k.ValidatorByConsAddr(ctx, sdk.ConsAddress(valAddr))
}
// ValidatorByConsAddr return the validator imformation by consAddr
func (k Keeper) ValidatorByConsAddr(ctx sdk.Context, consAddr sdk.ConsAddress) staking.ValidatorI {
validator, found := k.GetValidatorByConsAddr(ctx, consAddr)
if !found {
return nil
}
return validator
}
// Slash not implement
func (k Keeper) Slash(ctx sdk.Context, consAddr sdk.ConsAddress, i int64, i2 int64, dec sdk.Dec) {}
// Jail disable the validator
func (k Keeper) Jail(ctx sdk.Context, consAddr sdk.ConsAddress) {
validator, found := k.GetValidatorByConsAddr(ctx, consAddr)
if !found {
panic(fmt.Errorf("validator with consensus-Address %s not found", consAddr))
}
if validator.Jailed {
panic(fmt.Sprintf("cannot jail already jailed validator, validator: %v\n", validator))
}
k.EnqueueValidatorsUpdate(ctx, validator, 0)
validator.Jailed = true
k.SetValidator(ctx, validator)
}
// Unjail enable the validator
func (k Keeper) Unjail(ctx sdk.Context, consAddr sdk.ConsAddress) {
validator, found := k.GetValidatorByConsAddr(ctx, consAddr)
if !found {
panic(fmt.Errorf("validator with consensus-Address %s not found", consAddr))
}
if !validator.Jailed {
panic(fmt.Sprintf("cannot unjail already unjailed validator, validator: %v\n", validator))
}
validator.Jailed = false
k.SetValidator(ctx, validator)
k.EnqueueValidatorsUpdate(ctx, validator, validator.Power)
}
func (k Keeper) Delegation(context sdk.Context, accAddr sdk.AccAddress, consAddr sdk.ValAddress) staking.DelegationI {
return staking.Delegation{}
}
func (k Keeper) MaxValidators(context sdk.Context) uint32 {
return 0
}
// get the group of the bonded validators
func (k Keeper) GetLastValidators(ctx sdk.Context) (validators []types.Validator) {
store := ctx.KVStore(k.storeKey)
iterator := sdk.KVStorePrefixIterator(store, types.ValidatorsKey)
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var validator types.Validator
k.cdc.MustUnmarshal(iterator.Value(), &validator)
if !validator.Jailed {
validators = append(validators, validator)
}
}
return validators
}
func (k *Keeper) IterateBondedValidatorsByPower(ctx sdk.Context, fn func(index int64, validator staking.ValidatorI) (stop bool)) {
store := ctx.KVStore(k.storeKey)
iterator := sdk.KVStorePrefixIterator(store, types.ValidatorsKey)
defer iterator.Close()
i := int64(0)
for ; iterator.Valid(); iterator.Next() {
var validator types.Validator
k.cdc.MustUnmarshal(iterator.Value(), &validator)
if !validator.Jailed {
stop := fn(i, validator)
if stop {
break
}
i++
}
}
}
func (k *Keeper) TotalBondedTokens(ctx sdk.Context) sdk.Int {
total := sdk.NewInt(0)
k.IterateValidators(ctx,
func(index int64, validator staking.ValidatorI) bool {
total = total.Add(validator.GetBondedTokens())
return false
},
)
return total
}
func (k *Keeper) IterateDelegations(
ctx sdk.Context, delegator sdk.AccAddress,
fn func(index int64, delegation staking.DelegationI) (stop bool),
) {
}
func (k *Keeper) VerifyCert(ctx sdk.Context, certStr string) (cert cautil.Cert, err error) {
rootCertStr, _ := k.GetRootCert(ctx)
rootCert, err := cautil.ReadCertificateFromMem([]byte(rootCertStr))
if err != nil {
return cert, sdkerrors.Wrap(types.ErrInvalidRootCert, err.Error())
}
cert, err = cautil.ReadCertificateFromMem([]byte(certStr))
if err != nil {
return cert, sdkerrors.Wrap(types.ErrInvalidCert, err.Error())
}
if err = cert.VerifyCertFromRoot(rootCert); err != nil {
return cert, sdkerrors.Wrapf(types.ErrInvalidCert, "cannot be verified by root certificate, err: %s", err.Error())
}
return cert, nil
}