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unsigned_message.go
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unsigned_message.go
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// Copyright (C) 2022, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package teleporter
import (
"github.com/ava-labs/avalanchego/ids"
)
// UnsignedMessage defines the standard format for an unsigned Teleporter
// cross-subnet message.
type UnsignedMessage struct {
SourceChainID ids.ID `serialize:"true"`
DestinationChainID ids.ID `serialize:"true"`
Payload []byte `serialize:"true"`
bytes []byte
}
// NewUnsignedMessage creates a new *UnsignedMessage and initializes it.
func NewUnsignedMessage(
sourceChainID ids.ID,
destinationChainID ids.ID,
payload []byte,
) (*UnsignedMessage, error) {
msg := &UnsignedMessage{
SourceChainID: sourceChainID,
DestinationChainID: destinationChainID,
Payload: payload,
}
return msg, msg.Initialize()
}
// ParseUnsignedMessage converts a slice of bytes into an initialized
// *UnsignedMessage.
func ParseUnsignedMessage(b []byte) (*UnsignedMessage, error) {
msg := &UnsignedMessage{
bytes: b,
}
_, err := c.Unmarshal(b, msg)
return msg, err
}
// Initialize recalculates the result of Bytes().
func (m *UnsignedMessage) Initialize() error {
bytes, err := c.Marshal(codecVersion, m)
m.bytes = bytes
return err
}
// Bytes returns the binary representation of this message. It assumes that the
// message is initialized from either New, Parse, or an explicit call to
// Initialize.
func (m *UnsignedMessage) Bytes() []byte {
return m.bytes
}