unpak.js
Version:
Modern TypeScript library for reading Unreal Engine pak files and assets, inspired by CUE4Parse
52 lines • 2.07 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.OodleDownloader = void 0;
const axios_1 = __importDefault(require("axios"));
const lzma_native_1 = __importDefault(require("lzma-native"));
const promises_1 = require("fs/promises");
const Exceptions_1 = require("./Exceptions");
/**
* Handles oodle dll downloading
*/
class OodleDownloader {
static CDN_BASE_URL = 'https://origin.warframe.com';
static CDN_INDEX_URL = `${OodleDownloader.CDN_BASE_URL}/origin/E926E926/index.txt.lzma`;
static OODLE_FILE_NAME = 'oo2core_9_win64.dll';
/**
* Decompress the response body of the provided url using lzma
* @param {string} url URL to request data from
* @returns {Promise<Buffer>} Decompressed body
* @private
* @static
*/
static async lzmaGet(url) {
const result = lzma_native_1.default.decompress((await axios_1.default.get(url, { responseType: 'arraybuffer' })).data);
return Buffer.isBuffer(result) ? result : Buffer.from(result);
}
/**
* Downloads oodle .dll
* @param {string} path Path to write oodle to
* @returns {Promise<void>}
* @public
* @static
*/
static async download(path) {
const index = (await this.lzmaGet(OodleDownloader.CDN_INDEX_URL)).toString();
let oodleUrl;
for (const line of index.split('\r\n')) {
if (line.includes(this.OODLE_FILE_NAME)) {
oodleUrl = this.CDN_BASE_URL + line.split(',')[0];
break;
}
}
if (!oodleUrl)
throw new Exceptions_1.OodleException(`Cannot find ${this.OODLE_FILE_NAME} in CDN index.`);
await (0, promises_1.writeFile)(path, await this.lzmaGet(oodleUrl)); // eh
console.log(`Successfully downloaded ${this.OODLE_FILE_NAME}!`);
}
}
exports.OodleDownloader = OodleDownloader;
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