@adamjessop/tiktok-live-connector
Version:
Node.js module to receive live stream chat events like comments and gifts from TikTok LIVE
123 lines • 5.38 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.generateDeviceId = exports.userAgentToDevicePreset = exports.validateAndNormalizeUniqueId = exports.deserializeWebSocketMessage = exports.deserializeMessage = exports.WebcastDeserializeConfig = void 0;
const tikTokSchema = __importStar(require("../types/tiktok-schema"));
const tiktok_schema_1 = require("../types/tiktok-schema");
const zlib = __importStar(require("node:zlib"));
const util = __importStar(require("node:util"));
const errors_1 = require("../types/errors");
const unzip = util.promisify(zlib.unzip);
const webcastEvents = Object.keys(tikTokSchema).filter((message) => message.startsWith('Webcast'));
exports.WebcastDeserializeConfig = {
skipMessageTypes: []
};
/**
* Find the messages defined in the TikTok protobuf schema
*/
async function getTikTokSchemaNames() {
return Object.keys(tikTokSchema);
}
/**
* Find the Webcast messages defined in the TikTok protobuf schema
*/
async function getWebcastEvents() {
return (await getTikTokSchemaNames()).filter((message) => message.startsWith('Webcast'));
}
function deserializeMessage(protoName, binaryMessage) {
const messageFn = tikTokSchema[protoName];
if (!messageFn)
throw new errors_1.InvalidSchemaNameError(`Invalid schema name: ${protoName}`);
const webcastResponse = messageFn.decode(binaryMessage);
// Handle WebcastResponse nested messages
if (protoName === 'WebcastResponse') {
for (const message of webcastResponse.messages || []) {
if (exports.WebcastDeserializeConfig.skipMessageTypes.includes(message.type)) {
continue;
}
if (!webcastEvents.includes(message.type)) {
continue;
}
const messageType = message.type;
message.decodedData = deserializeMessage(messageType, Buffer.from(message.binary));
}
}
return webcastResponse;
}
exports.deserializeMessage = deserializeMessage;
async function deserializeWebSocketMessage(binaryMessage) {
// Websocket messages are in a container which contains additional data
// Message type 'msg' represents a normal WebcastResponse
const rawWebcastWebSocketMessage = tiktok_schema_1.WebcastWebsocketMessage.decode(binaryMessage);
let webcastResponse = undefined;
if (rawWebcastWebSocketMessage.type === 'msg') {
let binary = rawWebcastWebSocketMessage.binary;
// Decompress binary (if gzip compressed)
// https://www.rfc-editor.org/rfc/rfc1950.html
if (binary && binary.length > 2 && binary[0] === 0x1f && binary[1] === 0x8b && binary[2] === 0x08) {
rawWebcastWebSocketMessage.binary = await unzip(binary);
}
webcastResponse = deserializeMessage('WebcastResponse', Buffer.from(rawWebcastWebSocketMessage.binary));
}
return {
...rawWebcastWebSocketMessage,
webcastResponse
};
}
exports.deserializeWebSocketMessage = deserializeWebSocketMessage;
function validateAndNormalizeUniqueId(uniqueId) {
if (typeof uniqueId !== 'string') {
throw new errors_1.InvalidUniqueIdError('Missing or invalid value for \'uniqueId\'. Please provide the username from TikTok URL.');
}
// Support full URI
uniqueId = uniqueId.replace('https://www.tiktok.com/', '');
uniqueId = uniqueId.replace('/live', '');
uniqueId = uniqueId.replace('@', '');
uniqueId = uniqueId.trim();
return uniqueId;
}
exports.validateAndNormalizeUniqueId = validateAndNormalizeUniqueId;
function userAgentToDevicePreset(userAgent) {
const firstSlash = userAgent.indexOf('/');
const browserName = userAgent.substring(0, firstSlash);
const browserVersion = userAgent.substring(firstSlash + 1);
return {
user_agent: userAgent,
browser_name: browserName,
browser_version: browserVersion,
browser_platform: userAgent.includes('Macintosh') ? 'MacIntel' : 'Win32',
os: userAgent.includes('Macintosh') ? 'mac' : 'windows'
};
}
exports.userAgentToDevicePreset = userAgentToDevicePreset;
function generateDeviceId() {
let digits = '';
for (let i = 0; i < 19; i++) {
digits += Math.floor(Math.random() * 10);
}
return digits;
}
exports.generateDeviceId = generateDeviceId;
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