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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 2x 1x 1x 1x 1x 1x 1x 1x | import { BufferReader, BufferWriter } from "@node-lightning/bufio";
import { MessageType } from "../MessageType";
import { IWireMessage } from "./IWireMessage";
/**
* The `funding_created` message is sent by the channel initiator after
* the channel has been accepted with `accept_channel`. The channel
* initiator includes the outpoint for the funding transaction as well
* as their signature for the counter-parties first commitment
* transaction. This message provides the channel acceptor the
* information they need to sign the initiator's first commitment
* transaction in the next message: `funding_signed`.
*/
export class FundingCreatedMessage implements IWireMessage {
public static type = MessageType.FundingCreated;
/**
* Deserializes an funding_created message
* @param buf
*/
public static deserialize(buf: Buffer): FundingCreatedMessage {
const instance = new FundingCreatedMessage();
const reader = new BufferReader(buf);
reader.readUInt16BE(); // read type
instance.temporaryChannelId = reader.readBytes(32);
instance.fundingTxId = reader.readBytes(32);
instance.fundingOutputIndex = reader.readUInt16BE();
instance.signature = reader.readBytes(64);
return instance;
}
/**
* The type for message. funding_created = 34
*/
public type = FundingCreatedMessage.type;
/**
* A unique and temporary identifier used during the channel creation
* process. This value is a placeholder for the channel_id that is
* created from the funding transaction that can be used after the
* funding_created message creates this transaction and the
* counterparty uses the channel_id in the funding_signed message.
*/
public temporaryChannelId: Buffer;
/**
* Transaction identifier for the funding transaction as represented
* as a sha256 hash of the serialized funding transaction. This
* value uses internal or natural byte order. Transaction identifiers
* often are in RPC or reversed byte order.
*/
public fundingTxId: Buffer;
/**
* Output index for the transaction which should be between 0 and
* 65535 u16 value.
*/
public fundingOutputIndex: number;
/**
* Signature for the counterpary's first commitment transaction.
* This signature allows the counterparty to spend the commitment
* using their own signature. The signature must be 64-bytes
* representing the 32-byte (r,s) values for an ECDSA signature.
*/
public signature: Buffer;
/**
* Serializes the message into a Buffer
*/
public serialize(): Buffer {
const writer = new BufferWriter();
writer.writeUInt16BE(this.type);
writer.writeBytes(this.temporaryChannelId);
writer.writeBytes(this.fundingTxId);
writer.writeUInt16BE(this.fundingOutputIndex);
writer.writeBytes(this.signature);
return writer.toBuffer();
}
}
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