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This commit is contained in:
Jack
2025-09-03 19:18:44 +01:00
parent eb620087c9
commit 695964a636
29 changed files with 631 additions and 571 deletions
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83
src/messages/userDataRequest.ts
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@@ -1,16 +1,16 @@
import Color from 'color'
import { encrypt } from 'romulus-js'
import { DEFAULT_KEY, MessageTypes } from '../common'
import { numberToUint16BE } from '../utilities/number'
import { SmartBuffer } from '../utilities/smart-buffer'
import { packOutgoingPacket } from './packet'
import Color from "color";
import { encrypt } from "romulus-js";
import { DEFAULT_KEY, MessageTypes } from "../common";
import { numberToUint16BE } from "../utilities/number";
import { SmartBuffer } from "../utilities/smart-buffer";
import { packOutgoingPacket } from "./packet";
const MESSAGE_TYPE = numberToUint16BE(MessageTypes.UserDataRequest)
const MESSAGE_TYPE = numberToUint16BE(MessageTypes.UserDataRequest);
export interface UserDataRequestMessage {
username: string
colour: Color
clientId: string
username: string;
colour: Color;
clientId: string;
}
/**
@@ -19,33 +19,36 @@ export interface UserDataRequestMessage {
* @param key The key to encrypt the data with.
* @returns An outgoing user data request (0x0002) packet.
*/
export function packUserDataRequestMessage (properties: UserDataRequestMessage, key: Uint8Array = DEFAULT_KEY): Uint8Array {
const encoder = new TextEncoder()
export function packUserDataRequestMessage(
properties: UserDataRequestMessage,
key: Uint8Array = DEFAULT_KEY,
): Uint8Array {
const encoder = new TextEncoder();
// Prepare data in correct format.
const username = encoder.encode(properties.username)
const usernameLength = numberToUint16BE(username.length)
const colour = new Uint8Array(properties.colour.array())
const clientId = encoder.encode(properties.clientId)
const clientIdLength = numberToUint16BE(clientId.length)
const username = encoder.encode(properties.username);
const usernameLength = numberToUint16BE(username.length);
const colour = new Uint8Array(properties.colour.array());
const clientId = encoder.encode(properties.clientId);
const clientIdLength = numberToUint16BE(clientId.length);
// Pack data.
const packedData = new SmartBuffer()
packedData.writeBytes(usernameLength)
packedData.writeBytes(username)
packedData.pad(32 - username.length)
packedData.writeBytes(colour)
packedData.writeBytes(clientIdLength)
packedData.writeBytes(clientId)
packedData.pad(32 - clientId.length)
const packedData = new SmartBuffer();
packedData.writeBytes(usernameLength);
packedData.writeBytes(username);
packedData.pad(32 - username.length);
packedData.writeBytes(colour);
packedData.writeBytes(clientIdLength);
packedData.writeBytes(clientId);
packedData.pad(32 - clientId.length);
// Encrypt the data.
const data = encrypt(packedData.data, MESSAGE_TYPE, key)
const data = encrypt(packedData.data, MESSAGE_TYPE, key);
return packOutgoingPacket({
messageType: MESSAGE_TYPE,
data: data
})
data: data,
});
}
/**
@@ -53,23 +56,25 @@ export function packUserDataRequestMessage (properties: UserDataRequestMessage,
* @param data The decrypted data section of an incoming user data request (0x0002) message.
* @returns An unpacked user data request (0x0002) message.
*/
export function unpackUserDataRequestMessage (data: Uint8Array): UserDataRequestMessage {
export function unpackUserDataRequestMessage(
data: Uint8Array,
): UserDataRequestMessage {
// Unpack and read data in correct format.
const packedData = SmartBuffer.from(data)
const packedData = SmartBuffer.from(data);
const usernameLength = packedData.readUInt16()
const username = packedData.readBytes(usernameLength)
packedData.cursor = 34
const colour = packedData.readBytes(3)
const clientIdLength = packedData.readUInt16()
const clientId = packedData.readBytes(clientIdLength)
const usernameLength = packedData.readUInt16();
const username = packedData.readBytes(usernameLength);
packedData.cursor = 34;
const colour = packedData.readBytes(3);
const clientIdLength = packedData.readUInt16();
const clientId = packedData.readBytes(clientIdLength);
const decoder = new TextDecoder()
const decoder = new TextDecoder();
// Return data in correct format.
return {
username: decoder.decode(username),
colour: Color.rgb(colour),
clientId: decoder.decode(clientId)
}
clientId: decoder.decode(clientId),
};
}