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msgs.go
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msgs.go
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package types
import (
"strings"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
clienttypes "github.com/cosmos/ibc-go/v6/modules/core/02-client/types"
host "github.com/cosmos/ibc-go/v6/modules/core/24-host"
)
// msg types
const (
TypeMsgTransfer = "transfer"
)
// NewMsgTransfer creates a new MsgTransfer instance
//
//nolint:interfacer
func NewMsgTransfer(
sourcePort, sourceChannel string,
token sdk.Coin, sender, receiver string,
timeoutHeight clienttypes.Height, timeoutTimestamp uint64,
memo string,
) *MsgTransfer {
return &MsgTransfer{
SourcePort: sourcePort,
SourceChannel: sourceChannel,
Token: token,
Sender: sender,
Receiver: receiver,
TimeoutHeight: timeoutHeight,
TimeoutTimestamp: timeoutTimestamp,
Memo: memo,
}
}
// Route implements sdk.Msg
func (MsgTransfer) Route() string {
return RouterKey
}
// Type implements sdk.Msg
func (MsgTransfer) Type() string {
return TypeMsgTransfer
}
// ValidateBasic performs a basic check of the MsgTransfer fields.
// NOTE: timeout height or timestamp values can be 0 to disable the timeout.
// NOTE: The recipient addresses format is not validated as the format defined by
// the chain is not known to IBC.
func (msg MsgTransfer) ValidateBasic() error {
if err := host.PortIdentifierValidator(msg.SourcePort); err != nil {
return sdkerrors.Wrap(err, "invalid source port ID")
}
if err := host.ChannelIdentifierValidator(msg.SourceChannel); err != nil {
return sdkerrors.Wrap(err, "invalid source channel ID")
}
if !msg.Token.IsValid() {
return sdkerrors.Wrap(sdkerrors.ErrInvalidCoins, msg.Token.String())
}
if !msg.Token.IsPositive() {
return sdkerrors.Wrap(sdkerrors.ErrInsufficientFunds, msg.Token.String())
}
// NOTE: sender format must be validated as it is required by the GetSigners function.
_, err := sdk.AccAddressFromBech32(msg.Sender)
if err != nil {
return sdkerrors.Wrapf(sdkerrors.ErrInvalidAddress, "string could not be parsed as address: %v", err)
}
if strings.TrimSpace(msg.Receiver) == "" {
return sdkerrors.Wrap(sdkerrors.ErrInvalidAddress, "missing recipient address")
}
return ValidateIBCDenom(msg.Token.Denom)
}
// GetSignBytes implements sdk.Msg.
func (msg MsgTransfer) GetSignBytes() []byte {
return sdk.MustSortJSON(AminoCdc.MustMarshalJSON(&msg))
}
// GetSigners implements sdk.Msg
func (msg MsgTransfer) GetSigners() []sdk.AccAddress {
signer, err := sdk.AccAddressFromBech32(msg.Sender)
if err != nil {
panic(err)
}
return []sdk.AccAddress{signer}
}