diff --git a/LICENSE b/LICENSE index f288702..8aa2645 100644 --- a/LICENSE +++ b/LICENSE @@ -1,674 +1,21 @@ - GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. By contrast, -the GNU General Public License is intended to guarantee your freedom to -share and change all versions of a program--to make sure it remains free -software for all its users. We, the Free Software Foundation, use the -GNU General Public License for most of our software; it applies also to -any other work released this way by its authors. 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If your program is a subroutine library, you -may consider it more useful to permit linking proprietary applications with -the library. If this is what you want to do, use the GNU Lesser General -Public License instead of this License. But first, please read -. +MIT License + +Copyright (c) [year] [fullname] + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/README.md b/README.md index 128fc14..99a1ffe 100644 --- a/README.md +++ b/README.md @@ -21,3 +21,8 @@ most of the config is talked on in [`config.example.toml`](./config.example.toml ## limitations / the formats currently you can only get basic widevine ones, everything related to playready and fairplay is not supported, sorry!! someday i will get this working, at least for playready. it's just that no one has written a library yet + +guaranteed formats to work include: + +- aac-legacy +- aac-he-legacy diff --git a/package-lock.json b/package-lock.json index d3bce2e..2de7474 100644 --- a/package-lock.json +++ b/package-lock.json @@ -9,7 +9,6 @@ "version": "1.0.0", "license": "MIT", "dependencies": { - "@inquirer/prompts": "^7.4.1", "axios": "^1.7.9", "callsites": "^4.2.0", "chalk": "^5.4.1", @@ -29,6 +28,7 @@ "@types/express": "^5.0.0", "@types/source-map-support": "^0.5.10", "@typescript-eslint/parser": "^7.12.0", + "concurrently": "^9.1.2", "eslint": "^8.57.0", "typescript": "^5.4.5", "typescript-eslint": "^7.13.0" @@ -373,310 +373,6 @@ "dev": true, "license": "BSD-3-Clause" }, - 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"node_modules/yoctocolors-cjs": { - "version": "2.1.2", - "resolved": "https://registry.npmjs.org/yoctocolors-cjs/-/yoctocolors-cjs-2.1.2.tgz", - "integrity": "sha512-cYVsTjKl8b+FrnidjibDWskAv7UKOfcwaVZdp/it9n1s9fU3IkgDbhdIRKCW4JDsAlECJY0ytoVPT3sK6kideA==", - "license": "MIT", - "engines": { - "node": ">=18" - }, - "funding": { - "url": "https://github.com/sponsors/sindresorhus" - } - }, "node_modules/zod": { "version": "3.24.2", "resolved": "https://registry.npmjs.org/zod/-/zod-3.24.2.tgz", diff --git a/package.json b/package.json index b790938..2907789 100644 --- a/package.json +++ b/package.json @@ -4,15 +4,14 @@ "description": "amdl", "type": "module", "scripts": { - "dev": "tsc && node dist/index.js", - "build": "tsc", + "dev": "concurrently 'node --watch dist/index.js' 'tsc --watch'", + "build": "npm run lint && tsc", "lint": "eslint .", "lint:fix": "eslint . --fix" }, "author": "reidlab", "license": "MIT", "dependencies": { - "@inquirer/prompts": "^7.4.1", "axios": "^1.7.9", "callsites": "^4.2.0", "chalk": "^5.4.1", @@ -32,6 +31,7 @@ "@types/express": "^5.0.0", "@types/source-map-support": "^0.5.10", "@typescript-eslint/parser": "^7.12.0", + "concurrently": "^9.1.2", "eslint": "^8.57.0", "typescript": "^5.4.5", "typescript-eslint": "^7.13.0" diff --git a/public/robots.txt b/public/robots.txt new file mode 100644 index 0000000..1f53798 --- /dev/null +++ b/public/robots.txt @@ -0,0 +1,2 @@ +User-agent: * +Disallow: / diff --git a/src/config.ts b/src/config.ts index 0ff5ee7..8f21d9f 100644 --- a/src/config.ts +++ b/src/config.ts @@ -70,6 +70,6 @@ function loadSchemaSomething(schema: T, something: string | } export const config = loadSchemaSomething(configSchema, "config.toml"); -log.debug("config loaded"); +log.info("config loaded"); export const env = loadSchemaSomething(envSchema, process.env); -log.debug("env loaded"); +log.info("env loaded"); diff --git a/src/constants/codecs.ts b/src/constants/codecs.ts new file mode 100644 index 0000000..92a830a --- /dev/null +++ b/src/constants/codecs.ts @@ -0,0 +1,13 @@ +import { RegularCodec } from "../downloader/index.js"; + +export const songCodecRegex: { [key in RegularCodec]: RegExp } = { + [RegularCodec.Aac]: /audio-stereo-\d+/, + [RegularCodec.AacHe]: /audio-HE-stereo-\d+/, + [RegularCodec.AacBinaural]: /audio-stereo-\d+-binaural/, + [RegularCodec.AacDownmix]: /audio-stereo-\d+-downmix/, + [RegularCodec.AacHeBinaural]: /audio-HE-stereo-\d+-binaural/, + [RegularCodec.AacHeDownmix]: /audio-HE-stereo-\d+-downmix/, + [RegularCodec.Atmos]: /audio-atmos-.*/, + [RegularCodec.Ac3]: /audio-ac3-.*/, + [RegularCodec.Alac]: /audio-alac-.*/ +}; diff --git a/src/downloader/index.ts b/src/downloader/index.ts index c62fcd1..a46e0b6 100644 --- a/src/downloader/index.ts +++ b/src/downloader/index.ts @@ -3,10 +3,13 @@ import { spawn } from "node:child_process"; import path from "node:path"; import { addToCache, isCached } from "../cache.js"; -// TODO: make this have a return type -export async function downloadSong(streamUrl: string, decryptionKey: string): Promise { - const baseOutputName = streamUrl.split("/").at(-1)?.split("?").at(0)?.split(".").splice(0, 1).join(".")?.trim(); +// TODO: make this have a return type (file path) +// TODO: refresh cache timer on download +// TODO: remux to m4a? +export async function downloadSong(streamUrl: string, decryptionKey: string, songCodec: RegularCodec | WebplaybackCodec): Promise { + let baseOutputName = streamUrl.split("/").at(-1)?.split("?").at(0)?.split(".").splice(0, 1).join(".")?.trim(); if (!baseOutputName) { throw "could not get base output name from stream url"; } + baseOutputName += `_${songCodec}`; const encryptedName = baseOutputName + "_enc.mp4"; const encryptedPath = path.join(config.downloader.cache.directory, encryptedName); const decryptedName = baseOutputName + ".mp4"; @@ -48,3 +51,21 @@ export async function downloadSong(streamUrl: string, decryptionKey: string): Pr addToCache(encryptedName); addToCache(decryptedName); } + +// TODO: find a better spot for this +export enum RegularCodec { + Aac = "aac", + AacHe = "aac_he", + AacBinaural = "aac_binaural", + AacDownmix = "aac_downmix", + AacHeBinaural = "aac_he_binaural", + AacHeDownmix = "aac_he_downmix", + Atmos = "atmos", + Ac3 = "ac3", + Alac = "alac" +} + +export enum WebplaybackCodec { + AacLegacy = "aac_legacy", + AacHeLegacy = "aac_he_legacy" +} diff --git a/src/downloader/streamInfo.ts b/src/downloader/streamInfo.ts index 8cde95b..2c95f79 100644 --- a/src/downloader/streamInfo.ts +++ b/src/downloader/streamInfo.ts @@ -5,12 +5,11 @@ import hls, { Item } from "parse-hls"; import axios from "axios"; import { getWidevineDecryptionKey } from "./keygen.js"; import { widevine, playready, fairplay } from "../constants/keyFormats.js"; -import { select } from "@inquirer/prompts"; +import { songCodecRegex } from "../constants/codecs.js"; import type { WebplaybackResponse } from "api/appleMusicApi.js"; -import { downloadSong } from "./index.js"; +import { downloadSong, RegularCodec, WebplaybackCodec } from "./index.js"; -// ugliest type ever -// this library is so bad +// why is this private // i wish pain on the person who wrote this /j :smile: type M3u8 = ReturnType; @@ -51,7 +50,7 @@ export default class StreamInfo { // TODO: why can't we decrypt widevine ones with this? // we get a valid key.. but it doesn't work :-( - public static async fromTrackMetadata(trackMetadata: SongAttributes<["extendedAssetUrls"]>): Promise { + public static async fromTrackMetadata(trackMetadata: SongAttributes<["extendedAssetUrls"]>, codec: RegularCodec): Promise { log.warn("the track metadata method is experimental, and may not work or give correct values!"); log.warn("if there is a failure--use a codec that uses the webplayback method"); @@ -61,7 +60,7 @@ export default class StreamInfo { const drmInfos = getDrmInfos(m3u8Parsed); const assetInfos = getAssetInfos(m3u8Parsed); - const playlist = await getPlaylist(m3u8Parsed); + const playlist = await getPlaylist(m3u8Parsed, codec); const variantId = playlist.properties[0].attributes.stableVariantId; if (variantId === undefined) { throw "variant id does not exist!"; } if (typeof variantId !== "string") { throw "variant id is not a string!"; } @@ -85,10 +84,16 @@ export default class StreamInfo { // webplayback is the more "legacy" way // only supports widevine, from what i can tell - public static async fromWebplayback(webplayback: WebplaybackResponse, flavor: string): Promise { + public static async fromWebplayback(webplayback: WebplaybackResponse, codec: WebplaybackCodec): Promise { const song = webplayback.songList[0]; + + let flavor: string; + if (codec === WebplaybackCodec.AacHeLegacy) { flavor = "32:ctrp64"; } + else if (codec === WebplaybackCodec.AacLegacy) { flavor = "28:ctrp256"; } + const asset = song.assets.find((asset) => { return asset.flavor === flavor; }); if (asset === undefined) { throw "webplayback info for requested flavor doesn't exist!"; } + const trackId = song.songId; const m3u8Url = asset.URL; @@ -153,16 +158,18 @@ function getAssetInfos(m3u8Data: M3u8): AssetInfos { // SUPER TODO: remove inquery for the codec, including its library, this is for testing // add a config option for preferred codec ? // or maybe in the streaminfo function -async function getPlaylist(m3u8Data: M3u8): Promise { +async function getPlaylist(m3u8Data: M3u8, codec: RegularCodec): Promise { const masterPlaylists = m3u8Data.streamRenditions; - const masterPlaylist = await select({ - message: "codec ?", - choices: masterPlaylists.map((playlist) => ({ - name: playlist.properties[0].attributes.audio as string, - value: playlist - })) + const masterPlaylist = masterPlaylists.find((playlist) => { + const line = playlist.properties[0].attributes?.audio; + if (line === undefined) { return false; } + if (typeof line !== "string") { return false; } + const match = line.match(songCodecRegex[codec]); + return match !== null; }); + if (masterPlaylist === undefined) { throw "no master playlist for codec found!"; } + return masterPlaylist; } @@ -183,9 +190,29 @@ const getPlayreadyPssh = (drmInfos: DrmInfos, drmIds: string[]): string | undefi const getFairplayKey = (drmInfos: DrmInfos, drmIds: string[]): string | undefined => getDrmData(drmInfos, drmIds, fairplay); // TODO: remove later, this is just for testing -const streamInfo1 = await StreamInfo.fromWebplayback(await appleMusicApi.getWebplayback("1744965708"), "32:ctrp64"); -// const streamInfo2 = await StreamInfo.fromTrackMetadata((await appleMusicApi.getSong("1615276490")).data[0].attributes); -// if (streamInfo1.widevinePssh !== undefined) { log.debug(await getWidevineDecryptionKey(streamInfo1.widevinePssh, streamInfo1.trackId)); } -// if (streamInfo2.widevinePssh !== undefined) { log.debug(await getWidevineDecryptionKey(streamInfo2.widevinePssh, streamInfo2.trackId)); } +// const streamInfo2 = await StreamInfo.fromTrackMetadata((await appleMusicApi.getSong("1615276490")).data[0].attributes, RegularCodec.Aac); -if (streamInfo1.widevinePssh !== undefined) { await downloadSong(streamInfo1.streamUrl, await getWidevineDecryptionKey(streamInfo1.widevinePssh, streamInfo1.trackId)); } +const streamCodec1 = WebplaybackCodec.AacLegacy; +const streamInfo1 = await StreamInfo.fromWebplayback(await appleMusicApi.getWebplayback("1705366148"), streamCodec1); +if (streamInfo1.widevinePssh !== undefined) { + await downloadSong( + streamInfo1.streamUrl, + await getWidevineDecryptionKey(streamInfo1.widevinePssh, streamInfo1.trackId), + streamCodec1 + ); +} + +// try { +// const streamCodec2 = RegularCodec.AacHe; +// const streamInfo2 = await StreamInfo.fromTrackMetadata((await appleMusicApi.getSong("1705366148")).data[0].attributes, streamCodec2); +// if (streamInfo2.widevinePssh !== undefined) { +// await downloadSong( +// streamInfo2.streamUrl, +// await getWidevineDecryptionKey(streamInfo2.widevinePssh, streamInfo2.trackId), +// streamCodec2 +// ); +// } +// } catch (err) { +// log.error("failed to download song"); +// log.error(err); +// } diff --git a/src/index.ts b/src/index.ts index cec79fd..8806097 100644 --- a/src/index.ts +++ b/src/index.ts @@ -4,7 +4,7 @@ import process from "node:process"; import * as log from "./log.js"; import { appleMusicApi } from "./api/index.js"; -class HttpException extends Error { +export class HttpException extends Error { public readonly status?: number; constructor(status: number, message: string) { @@ -16,6 +16,14 @@ class HttpException extends Error { const app = express(); +app.disable("x-powered-by"); + +app.set("trust proxy", ["loopback", "uniquelocal"]); + +app.use("/", express.static("public")); + +app.use("/data", express.static(config.downloader.cache.directory, { extensions: ["mp4"] })); + app.use((req, _res, next) => { next(new HttpException(404, `${req.path} not found`)); }); @@ -31,15 +39,13 @@ app.use((err: HttpException, _req: Request, res: Response, _next: NextFunction) res.status(status).send(message); }); -// TODO: reorganize this -// a bit gugly.. - await appleMusicApi.login().catch((err) => { log.error("failed to login to apple music api"); log.error(err); process.exit(1); +}).finally(() => { + log.info("logged in to apple music api"); }); -log.debug("logged in to apple music api"); try { const listener = app.listen(config.server.port, () => {