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msgs.go
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msgs.go
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package types
import (
"github.com/tendermint/tendermint/crypto/tmhash"
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 = &MsgDelegateFeedConsent{}
_ sdk.Msg = &MsgAggregateExchangeRatePrevote{}
_ sdk.Msg = &MsgAggregateExchangeRateVote{}
)
// oracle message types
const (
TypeMsgDelegateFeedConsent = "delegate_feeder"
TypeMsgAggregateExchangeRatePrevote = "aggregate_exchange_rate_prevote"
TypeMsgAggregateExchangeRateVote = "aggregate_exchange_rate_vote"
)
//-------------------------------------------------
//-------------------------------------------------
// NewMsgAggregateExchangeRatePrevote returns MsgAggregateExchangeRatePrevote instance
func NewMsgAggregateExchangeRatePrevote(hash AggregateVoteHash, feeder sdk.AccAddress, validator sdk.ValAddress) *MsgAggregateExchangeRatePrevote {
return &MsgAggregateExchangeRatePrevote{
Hash: hash.String(),
Feeder: feeder.String(),
Validator: validator.String(),
}
}
// Route implements sdk.Msg
func (msg MsgAggregateExchangeRatePrevote) Route() string { return RouterKey }
// Type implements sdk.Msg
func (msg MsgAggregateExchangeRatePrevote) Type() string { return TypeMsgAggregateExchangeRatePrevote }
// GetSignBytes implements sdk.Msg
func (msg MsgAggregateExchangeRatePrevote) GetSignBytes() []byte {
return sdk.MustSortJSON(ModuleCdc.MustMarshalJSON(&msg))
}
// GetSigners implements sdk.Msg
func (msg MsgAggregateExchangeRatePrevote) GetSigners() []sdk.AccAddress {
feeder, err := sdk.AccAddressFromBech32(msg.Feeder)
if err != nil {
panic(err)
}
return []sdk.AccAddress{feeder}
}
// ValidateBasic Implements sdk.Msg
func (msg MsgAggregateExchangeRatePrevote) ValidateBasic() error {
_, err := AggregateVoteHashFromHexString(msg.Hash)
if err != nil {
return sdkerrors.Wrapf(ErrInvalidHash, "Invalid vote hash (%s)", err)
}
// HEX encoding doubles the hash length
if len(msg.Hash) != tmhash.TruncatedSize*2 {
return ErrInvalidHashLength
}
_, err = sdk.AccAddressFromBech32(msg.Feeder)
if err != nil {
return sdkerrors.Wrapf(sdkerrors.ErrInvalidAddress, "Invalid feeder address (%s)", err)
}
_, err = sdk.ValAddressFromBech32(msg.Validator)
if err != nil {
return sdkerrors.Wrapf(sdkerrors.ErrInvalidAddress, "Invalid operator address (%s)", err)
}
return nil
}
// NewMsgAggregateExchangeRateVote returns MsgAggregateExchangeRateVote instance
func NewMsgAggregateExchangeRateVote(salt string, exchangeRates string, feeder sdk.AccAddress, validator sdk.ValAddress) *MsgAggregateExchangeRateVote {
return &MsgAggregateExchangeRateVote{
Salt: salt,
ExchangeRates: exchangeRates,
Feeder: feeder.String(),
Validator: validator.String(),
}
}
// Route implements sdk.Msg
func (msg MsgAggregateExchangeRateVote) Route() string { return RouterKey }
// Type implements sdk.Msg
func (msg MsgAggregateExchangeRateVote) Type() string { return TypeMsgAggregateExchangeRateVote }
// GetSignBytes implements sdk.Msg
func (msg MsgAggregateExchangeRateVote) GetSignBytes() []byte {
return sdk.MustSortJSON(ModuleCdc.MustMarshalJSON(&msg))
}
// GetSigners implements sdk.Msg
func (msg MsgAggregateExchangeRateVote) GetSigners() []sdk.AccAddress {
feeder, err := sdk.AccAddressFromBech32(msg.Feeder)
if err != nil {
panic(err)
}
return []sdk.AccAddress{feeder}
}
// ValidateBasic implements sdk.Msg
func (msg MsgAggregateExchangeRateVote) ValidateBasic() error {
_, err := sdk.AccAddressFromBech32(msg.Feeder)
if err != nil {
return sdkerrors.Wrapf(sdkerrors.ErrInvalidAddress, "Invalid feeder address (%s)", err)
}
_, err = sdk.ValAddressFromBech32(msg.Validator)
if err != nil {
return sdkerrors.Wrapf(sdkerrors.ErrInvalidAddress, "Invalid operator address (%s)", err)
}
if l := len(msg.ExchangeRates); l == 0 {
return sdkerrors.Wrap(sdkerrors.ErrUnknownRequest, "must provide at least one oracle exchange rate")
} else if l > 4096 {
return sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "exchange rates string can not exceed 4096 characters")
}
exchangeRates, err := ParseExchangeRateTuples(msg.ExchangeRates)
if err != nil {
return sdkerrors.Wrap(sdkerrors.ErrInvalidCoins, "failed to parse exchange rates string cause: "+err.Error())
}
for _, exchangeRate := range exchangeRates {
// Check overflow bit length
if exchangeRate.ExchangeRate.BigInt().BitLen() > 255+sdk.DecimalPrecisionBits {
return sdkerrors.Wrap(ErrInvalidExchangeRate, "overflow")
}
}
if len(msg.Salt) > 4 || len(msg.Salt) < 1 {
return sdkerrors.Wrap(ErrInvalidSaltLength, "salt length must be [1, 4]")
}
return nil
}
// NewMsgDelegateFeedConsent creates a MsgDelegateFeedConsent instance
func NewMsgDelegateFeedConsent(operatorAddress sdk.ValAddress, feederAddress sdk.AccAddress) *MsgDelegateFeedConsent {
return &MsgDelegateFeedConsent{
Operator: operatorAddress.String(),
Delegate: feederAddress.String(),
}
}
// Route implements sdk.Msg
func (msg MsgDelegateFeedConsent) Route() string { return RouterKey }
// Type implements sdk.Msg
func (msg MsgDelegateFeedConsent) Type() string { return TypeMsgDelegateFeedConsent }
// GetSignBytes implements sdk.Msg
func (msg MsgDelegateFeedConsent) GetSignBytes() []byte {
return sdk.MustSortJSON(ModuleCdc.MustMarshalJSON(&msg))
}
// GetSigners implements sdk.Msg
func (msg MsgDelegateFeedConsent) GetSigners() []sdk.AccAddress {
operator, err := sdk.ValAddressFromBech32(msg.Operator)
if err != nil {
panic(err)
}
return []sdk.AccAddress{sdk.AccAddress(operator)}
}
// ValidateBasic implements sdk.Msg
func (msg MsgDelegateFeedConsent) ValidateBasic() error {
_, err := sdk.ValAddressFromBech32(msg.Operator)
if err != nil {
return sdkerrors.Wrapf(sdkerrors.ErrInvalidAddress, "Invalid operator address (%s)", err)
}
_, err = sdk.AccAddressFromBech32(msg.Delegate)
if err != nil {
return sdkerrors.Wrapf(sdkerrors.ErrInvalidAddress, "Invalid delegate address (%s)", err)
}
return nil
}