scdl-core/dist/services/download.js

SoundCloud downloader

"use strict";
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}) : function(o, v) {
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});
var __importStar = (this && this.__importStar) || function (mod) {
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var __generator = (this && this.__generator) || function (thisArg, body) {
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var __importDefault = (this && this.__importDefault) || function (mod) {
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.download = void 0;
var axios_1 = __importDefault(require("axios"));
var m3u8stream = __importStar(require("m3u8stream"));
var tracks_1 = require("./tracks");
var getTrackStream = function (url, downloadOptions) {
    try {
        return m3u8stream.default(url, {
            highWaterMark: (downloadOptions === null || downloadOptions === void 0 ? void 0 : downloadOptions.highWaterMark) || 16 * 1024,
        });
    }
    catch (e) {
        throw "Invalid url";
    }
};
var getM3u8Url = function (clientId, url) { return __awaiter(void 0, void 0, void 0, function () {
    var _url, response, e_1;
    return __generator(this, function (_a) {
        switch (_a.label) {
            case 0:
                _url = url + "?client_id=" + clientId;
                _a.label = 1;
            case 1:
                _a.trys.push([1, 3, , 4]);
                return [4 /*yield*/, axios_1.default.get(_url, {
                        headers: {
                            "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36",
                            Accept: "*/*",
                            "Accept-Encoding": "gzip, deflate, br",
                        },
                    })];
            case 2:
                response = _a.sent();
                return [2 /*return*/, response.data.url];
            case 3:
                e_1 = _a.sent();
                throw "Invalid url";
            case 4: return [2 /*return*/];
        }
    });
}); };
var download = function (clientId, url, downloadOptions) { return __awaiter(void 0, void 0, void 0, function () {
    var track, transcodings, transcoding, i, m3u8Url;
    return __generator(this, function (_a) {
        switch (_a.label) {
            case 0: return [4 /*yield*/, (0, tracks_1.getTrack)(clientId, url)];
            case 1:
                track = _a.sent();
                transcodings = track.media.transcodings;
                transcoding = null;
                i = 0;
                while (i < transcodings.length) {
                    if (transcodings[i].format.protocol === "hls") {
                        transcoding = transcodings[i];
                        break;
                    }
                    i++;
                }
                if (!transcoding)
                    throw "Invalid url!";
                return [4 /*yield*/, getM3u8Url(clientId, transcoding.url)];
            case 2:
                m3u8Url = _a.sent();
                return [2 /*return*/, getTrackStream(m3u8Url, downloadOptions)];
        }
    });
}); };
exports.download = download;