Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 2x 1x 1x 1x 1x 1x 1x | import { BufferReader, BufferWriter } from "@node-lightning/bufio";
import { MessageType } from "../MessageType";
import { ChannelId } from "@node-lightning/core";
import { IWireMessage } from "./IWireMessage";
/**
* ShutdownMessage represents the `shutdown` message defined in BOLT #2 of the Lightning
* Specification. This message can be sent by either node. The scriptPubKey must be a valid P2WPKH,
* P2WSH, P2SH-P2WPKH, P2SH-P2WSH, or any valid witness script if option_shutdown_anysegwit is
* negotiated and it should be same as `shutdown_scriptpubkey` value if it was sent during
* `'open/accept' channel message`. Therefore, if both conditions hold true resulting transaction
* will propagate to miners. If shutdown is sent by either node, corresponding node should send
* commitment_signed to commit any outstanding changes before replying shutdown. Once shutdown is
* sent by both nodes no new HTLCs should be added or accepted by the channel. After successful
* handshake of shutdown message, fee negotiation and signature sending can begin with
* `closing_signed` message.
*/
export class ShutdownMessage implements IWireMessage {
public static type = MessageType.Shutdown;
/**
* Deserializes a shutdown message
* @param buf
*/
public static deserialize(buf: Buffer): ShutdownMessage {
const instance = new ShutdownMessage();
const reader = new BufferReader(buf);
reader.readUInt16BE(); // read type
instance.channelId = new ChannelId(reader.readBytes(32));
const len = reader.readUInt16BE();
instance.scriptPubKey = reader.readBytes(len);
return instance;
}
/**
* The type for message. Shutdown = 38
*/
public readonly type: MessageType = ShutdownMessage.type;
/**
* ChannelId generated from the funding transactions outpoint.
*/
public channelId: ChannelId;
/**
* scriptPubKey is used by the sender to get paid, it must be a valid P2WPKH, P2WSH, P2SH-P2WPKH,
* P2SH-P2WSH, or any valid witness script if option_shutdown_anysegwit is negotiated and it
* should be same as `shutdown_scriptpubkey` value if it was sent during `'open/accept' channel
* message`.
*/
public scriptPubKey: Buffer;
/**
* Serializes the message into a Buffer
*/
public serialize(): Buffer {
const writer = new BufferWriter();
writer.writeUInt16BE(this.type);
writer.writeBytes(this.channelId.toBuffer());
writer.writeUInt16BE(this.scriptPubKey.length);
writer.writeBytes(this.scriptPubKey);
return writer.toBuffer();
}
}
|