README.md

@@ -11,20 +11,18 @@ bugs and unfinished features. USE IT WITH CAUTION.**
 ```shell
 # Download song/album with default codec (alac)
 download https://music.apple.com/jp/album/nameless-name-single/1688539265
-# Or a shorter command
-dl https://music.apple.com/jp/album/nameless-name-single/1688539265
 # Download song/album with specified codec
-dl -c aac https://music.apple.com/jp/song/caribbean-blue/339592231
-# Overwrite existing files
-dl -f https://music.apple.com/jp/song/caribbean-blue/339592231
+download https://music.apple.com/jp/song/caribbean-blue/339592231 -c aac
 # Download specify artist's all albums
-dl https://music.apple.com/jp/artist/%E3%83%88%E3%82%B2%E3%83%8A%E3%82%B7%E3%83%88%E3%82%B2%E3%82%A2%E3%83%AA/1688539273
+download https://music.apple.com/jp/artist/%E3%83%88%E3%82%B2%E3%83%8A%E3%82%B7%E3%83%88%E3%82%B2%E3%82%A2%E3%83%AA/1688539273
 # Download specify artist's all songs
-dl --include-participate-songs https://music.apple.com/jp/artist/%E3%83%88%E3%82%B2%E3%83%8A%E3%82%B7%E3%83%88%E3%82%B2%E3%82%A2%E3%83%AA/1688539273
+download https://music.apple.com/jp/artist/%E3%83%88%E3%82%B2%E3%83%8A%E3%82%B7%E3%83%88%E3%82%B2%E3%82%A2%E3%83%AA/1688539273 --include-participate-songs
 # Download all songs of specified playlist
-dl https://music.apple.com/jp/playlist/bocchi-the-rock/pl.u-Ympg5s39LRqp
+download https://music.apple.com/jp/playlist/bocchi-the-rock/pl.u-Ympg5s39LRqp
 # Download song from specified m3u8 with default codec (alac)
 m3u8 https://aod.itunes.apple.com/itunes-assets/HLSMusic116/v4/cb/f0/91/cbf09175-ce98-d133-1936-2e46b6992aa5/P631756252_lossless.m3u8
+# Start Mitm mode
+mitm
 ```
 
 # Support Codec
@@ -105,3 +103,24 @@ poetry install
 cp config.example.toml config.toml
 poetry run python main.py
 ```
+
+# Mitm Mode
+
+## Prepare Environment
+
+1. Install [Proxifier](https://www.proxifier.com/) and [Apple Music Windows](https://apps.microsoft.com/detail/9pfhdd62mxs1)
+2. Sign in to Apple Music Windows with your Apple account
+3. Run `poetry run mitmproxy` under the script directory and quit
+4. Install the CA certificate according
+   to [Mitmproxy's instructions](https://docs.mitmproxy.org/stable/concepts-certificates/#quick-setup)
+5. Create a new proxy server in Proxifier(`Profile -> Proxy Servers -> Add`). `Address` and `Port` are values
+   of `mitm.host` and `mitm.port` in `config.toml`, and `Protocol` is `SOCKS Version 5`
+6. Create a new proxification rule in Proxifier(`Profile -> Proxy Servers -> Add`). Fill in `Applications` field
+   with `amplibraryagent.exe; applemusic.exe` and select the proxy server just created in `Action`
+
+## Start Mitm
+
+1. Run the script, type command `mitm`
+2. Start Proxifier
+3. Start Apple Music Windows and play a song or an album.
+4. Now the script should catch the m3u8 link and start ripping

src/cmd.py

@@ -40,21 +40,20 @@ class NewInteractiveShell:
         download_parser.add_argument("-c", "--codec",
                                      choices=["alac", "ec3", "aac", "aac-binaural", "aac-downmix", "ac3"],
                                      default="alac")
-        download_parser.add_argument("-f", "--force", default=False, action="store_true")
-        download_parser.add_argument("--include-participate-songs", default=False, dest="include", action="store_true")
-        # download_from_file_parser = subparser.add_parser("download-from-file", aliases=["dlf"])
+        download_parser.add_argument("-f", "--force", type=bool, default=False)
+        download_parser.add_argument("--include-participate-songs", type=bool, default=False, dest="include")
         m3u8_parser = subparser.add_parser("m3u8")
         m3u8_parser.add_argument("url", type=str)
         m3u8_parser.add_argument("-c", "--codec",
                                  choices=["alac", "ec3", "aac", "aac-binaural", "aac-downmix", "ac3"],
                                  default="alac")
-        m3u8_parser.add_argument("-f", "--force", default=False, action="store_true")
+        m3u8_parser.add_argument("-f", "--force", type=bool, default=False)
         subparser.add_parser("exit")
         mitm_parser = subparser.add_parser("mitm")
         mitm_parser.add_argument("-c", "--codec",
                                  choices=["alac", "ec3", "aac", "aac-binaural", "aac-downmix", "ac3"],
                                  default="alac")
-        mitm_parser.add_argument("-f", "--force", default=False, action="store_true")
+        mitm_parser.add_argument("-f", "--force", type=bool, default=False)
 
         logger.remove()
         logger.add(lambda msg: print_formatted_text(ANSI(msg), end=""), colorize=True, level="INFO")

src/decrypt.py

@@ -24,12 +24,12 @@ async def decrypt(info: SongInfo, keys: list[str], manifest: Datum, device: Devi
         else:
             logger.info(f"Using device {device.serial} to decrypt song: {manifest.attributes.artistName} - {manifest.attributes.name}")
         try:
-            reader, writer = await asyncio.open_connection(device.host, device.fridaPort, limit=2**14)
+            reader, writer = await asyncio.open_connection(device.host, device.fridaPort)
         except ConnectionRefusedError:
             logger.warning(f"Failed to connect to device {device.serial}, re-injecting")
             device.restart_inject_frida()
             raise RetryableDecryptException
-        decrypted = []
+        decrypted = bytes()
         last_index = 255
         for sample in info.samples:
             if last_index != sample.descIndex:
@@ -59,11 +59,10 @@ async def decrypt(info: SongInfo, keys: list[str], manifest: Datum, device: Devi
                 else:
                     logger.error(f"Failed to decrypt song: {manifest.attributes.artistName} - {manifest.attributes.name}")
                     raise DecryptException
-            now += 1
-            decrypted.append(result)
+            decrypted += result
         writer.write(bytes([0, 0, 0, 0]))
         writer.close()
-        return bytes().join(decrypted)
+        return decrypted
 
 
 async def decrypt_sample(writer: asyncio.StreamWriter, reader: asyncio.StreamReader, sample: SampleInfo) -> bytes: