/
msg.go
289 lines (243 loc) · 9.09 KB
/
msg.go
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package types
import (
"bytes"
"encoding/json"
"github.com/tendermint/tendermint/crypto"
yaml "gopkg.in/yaml.v2"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
)
// ensure Msg interface compliance at compile time
var (
_ sdk.Msg = &MsgCreateValidator{}
_ sdk.Msg = &MsgEditValidator{}
_ sdk.Msg = &MsgDelegate{}
_ sdk.Msg = &MsgUndelegate{}
)
//______________________________________________________________________
// MsgCreateValidator - struct for bonding transactions
type MsgCreateValidator struct {
Description Description `json:"description" yaml:"description"`
DelegatorAddress sdk.AccAddress `json:"delegator_address" yaml:"delegator_address"`
ValidatorAddress sdk.ValAddress `json:"validator_address" yaml:"validator_address"`
PubKey crypto.PubKey `json:"pubkey" yaml:"pubkey"`
Value sdk.Coin `json:"value" yaml:"value"`
}
type msgCreateValidatorJSON struct {
Description Description `json:"description" yaml:"description"`
DelegatorAddress sdk.AccAddress `json:"delegator_address" yaml:"delegator_address"`
ValidatorAddress sdk.ValAddress `json:"validator_address" yaml:"validator_address"`
PubKey string `json:"pubkey" yaml:"pubkey"`
Value sdk.Coin `json:"value" yaml:"value"`
}
// NewMsgCreateValidator creates a new MsgCreateValidator instance.
// Delegator address and validator address are the same.
func NewMsgCreateValidator(
valAddr sdk.ValAddress, pubKey crypto.PubKey, selfDelegation sdk.Coin,
description Description,
) MsgCreateValidator {
return MsgCreateValidator{
Description: description,
DelegatorAddress: sdk.AccAddress(valAddr),
ValidatorAddress: valAddr,
PubKey: pubKey,
Value: selfDelegation,
}
}
// Route implements the sdk.Msg interface.
func (msg MsgCreateValidator) Route() string { return RouterKey }
// Type implements the sdk.Msg interface.
func (msg MsgCreateValidator) Type() string { return "create_validator" }
// GetSigners implements the sdk.Msg interface. It returns the address(es) that
// must sign over msg.GetSignBytes().
// If the validator address is not same as delegator's, then the validator must
// sign the msg as well.
func (msg MsgCreateValidator) GetSigners() []sdk.AccAddress {
// delegator is first signer so delegator pays fees
addrs := []sdk.AccAddress{msg.DelegatorAddress}
if !bytes.Equal(msg.DelegatorAddress.Bytes(), msg.ValidatorAddress.Bytes()) {
addrs = append(addrs, sdk.AccAddress(msg.ValidatorAddress))
}
return addrs
}
// MarshalJSON implements the json.Marshaler interface to provide custom JSON
// serialization of the MsgCreateValidator type.
func (msg MsgCreateValidator) MarshalJSON() ([]byte, error) {
return json.Marshal(msgCreateValidatorJSON{
Description: msg.Description,
DelegatorAddress: msg.DelegatorAddress,
ValidatorAddress: msg.ValidatorAddress,
PubKey: sdk.MustBech32ifyPubKey(sdk.Bech32PubKeyTypeConsPub, msg.PubKey),
Value: msg.Value,
})
}
// UnmarshalJSON implements the json.Unmarshaler interface to provide custom
// JSON deserialization of the MsgCreateValidator type.
func (msg *MsgCreateValidator) UnmarshalJSON(bz []byte) error {
var msgCreateValJSON msgCreateValidatorJSON
if err := json.Unmarshal(bz, &msgCreateValJSON); err != nil {
return err
}
msg.Description = msgCreateValJSON.Description
msg.DelegatorAddress = msgCreateValJSON.DelegatorAddress
msg.ValidatorAddress = msgCreateValJSON.ValidatorAddress
var err error
msg.PubKey, err = sdk.GetPubKeyFromBech32(sdk.Bech32PubKeyTypeConsPub, msgCreateValJSON.PubKey)
if err != nil {
return err
}
msg.Value = msgCreateValJSON.Value
return nil
}
// MarshalYAML implements a custom marshal yaml function due to consensus pubkey.
func (msg MsgCreateValidator) MarshalYAML() (interface{}, error) {
bs, err := yaml.Marshal(struct {
Description Description
DelegatorAddress sdk.AccAddress
ValidatorAddress sdk.ValAddress
PubKey string
Value sdk.Coin
}{
Description: msg.Description,
DelegatorAddress: msg.DelegatorAddress,
ValidatorAddress: msg.ValidatorAddress,
PubKey: sdk.MustBech32ifyPubKey(sdk.Bech32PubKeyTypeConsPub, msg.PubKey),
Value: msg.Value,
})
if err != nil {
return nil, err
}
return string(bs), nil
}
// GetSignBytes returns the message bytes to sign over.
func (msg MsgCreateValidator) GetSignBytes() []byte {
bz := ModuleCdc.MustMarshalJSON(msg)
return sdk.MustSortJSON(bz)
}
// ValidateBasic implements the sdk.Msg interface.
func (msg MsgCreateValidator) ValidateBasic() error {
// note that unmarshaling from bech32 ensures either empty or valid
if msg.DelegatorAddress.Empty() {
return ErrEmptyDelegatorAddr
}
if msg.ValidatorAddress.Empty() {
return ErrEmptyValidatorAddr
}
if !sdk.AccAddress(msg.ValidatorAddress).Equals(msg.DelegatorAddress) {
return ErrBadValidatorAddr
}
if !msg.Value.Amount.IsPositive() {
return ErrBadDelegationAmount
}
if msg.Description == (Description{}) {
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "empty description")
}
return nil
}
// MsgEditValidator - struct for editing a validator
type MsgEditValidator struct {
Description Description `json:"description" yaml:"description"`
ValidatorAddress sdk.ValAddress `json:"address" yaml:"address"`
}
// NewMsgEditValidator creates a new MsgEditValidator instance
func NewMsgEditValidator(valAddr sdk.ValAddress, description Description) MsgEditValidator {
return MsgEditValidator{
Description: description,
ValidatorAddress: valAddr,
}
}
// Route implements the sdk.Msg interface.
func (msg MsgEditValidator) Route() string { return RouterKey }
// Type implements the sdk.Msg interface.
func (msg MsgEditValidator) Type() string { return "edit_validator" }
// GetSigners implements the sdk.Msg interface.
func (msg MsgEditValidator) GetSigners() []sdk.AccAddress {
return []sdk.AccAddress{sdk.AccAddress(msg.ValidatorAddress)}
}
// GetSignBytes implements the sdk.Msg interface.
func (msg MsgEditValidator) GetSignBytes() []byte {
bz := ModuleCdc.MustMarshalJSON(msg)
return sdk.MustSortJSON(bz)
}
// ValidateBasic implements the sdk.Msg interface.
func (msg MsgEditValidator) ValidateBasic() error {
if msg.ValidatorAddress.Empty() {
return ErrEmptyValidatorAddr
}
if msg.Description == (Description{}) {
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "empty description")
}
return nil
}
// MsgDelegate - struct for bonding transactions
type MsgDelegate struct {
DelegatorAddress sdk.AccAddress `json:"delegator_address" yaml:"delegator_address"`
ValidatorAddress sdk.ValAddress `json:"validator_address" yaml:"validator_address"`
}
// NewMsgDelegate creates a new MsgDelegate instance.
func NewMsgDelegate(delAddr sdk.AccAddress, valAddr sdk.ValAddress) MsgDelegate {
return MsgDelegate{
DelegatorAddress: delAddr,
ValidatorAddress: valAddr,
}
}
// Route implements the sdk.Msg interface.
func (msg MsgDelegate) Route() string { return RouterKey }
// Type implements the sdk.Msg interface.
func (msg MsgDelegate) Type() string { return "delegate" }
// GetSigners implements the sdk.Msg interface.
func (msg MsgDelegate) GetSigners() []sdk.AccAddress {
return []sdk.AccAddress{msg.DelegatorAddress}
}
// GetSignBytes implements the sdk.Msg interface.
func (msg MsgDelegate) GetSignBytes() []byte {
bz := ModuleCdc.MustMarshalJSON(msg)
return sdk.MustSortJSON(bz)
}
// ValidateBasic implements the sdk.Msg interface.
func (msg MsgDelegate) ValidateBasic() error {
if msg.DelegatorAddress.Empty() {
return ErrEmptyDelegatorAddr
}
if msg.ValidatorAddress.Empty() {
return ErrEmptyValidatorAddr
}
if ! sdk.AccAddress(msg.ValidatorAddress).Equals(msg.DelegatorAddress) {
return ErrBadDelegatorAddr
}
return nil
}
//______________________________________________________________________
// MsgUndelegate - struct for unbonding transactions
type MsgUndelegate struct {
DelegatorAddress sdk.AccAddress `json:"delegator_address" yaml:"delegator_address"`
ValidatorAddress sdk.ValAddress `json:"validator_address" yaml:"validator_address"`
}
// NewMsgUndelegate creates a new MsgUndelegate instance.
func NewMsgUndelegate(delAddr sdk.AccAddress, valAddr sdk.ValAddress) MsgUndelegate {
return MsgUndelegate{
DelegatorAddress: delAddr,
ValidatorAddress: valAddr,
}
}
// Route implements the sdk.Msg interface.
func (msg MsgUndelegate) Route() string { return RouterKey }
// Type implements the sdk.Msg interface.
func (msg MsgUndelegate) Type() string { return "begin_unbonding" }
// GetSigners implements the sdk.Msg interface.
func (msg MsgUndelegate) GetSigners() []sdk.AccAddress { return []sdk.AccAddress{msg.DelegatorAddress} }
// GetSignBytes implements the sdk.Msg interface.
func (msg MsgUndelegate) GetSignBytes() []byte {
bz := ModuleCdc.MustMarshalJSON(msg)
return sdk.MustSortJSON(bz)
}
// ValidateBasic implements the sdk.Msg interface.
func (msg MsgUndelegate) ValidateBasic() error {
if msg.DelegatorAddress.Empty() {
return ErrEmptyDelegatorAddr
}
if msg.ValidatorAddress.Empty() {
return ErrEmptyValidatorAddr
}
return nil
}