feat: retry when raise DecryptException

src/decrypt.py

@@ -1,6 +1,8 @@
 import asyncio
+import logging
 
 from loguru import logger
+from tenacity import retry, retry_if_exception_type, stop_after_attempt, before_sleep_log
 
 from src.adb import Device
 from src.exceptions import DecryptException
@@ -9,6 +11,8 @@ from src.mp4 import SongInfo, SampleInfo
 from src.types import defaultId, prefetchKey
 
 
+@retry(retry=retry_if_exception_type(DecryptException), stop=stop_after_attempt(3),
+       before_sleep=before_sleep_log(logger, logging.WARN))
 async def decrypt(info: SongInfo, keys: list[str], manifest: Datum, device: Device) -> bytes:
     async with device.decryptLock:
         logger.info(f"Decrypting song: {manifest.attributes.artistName} - {manifest.attributes.name}")
@@ -28,7 +32,12 @@ async def decrypt(info: SongInfo, keys: list[str], manifest: Datum, device: Devi
                 writer.write(bytes([len(key_uri)]))
                 writer.write(key_uri.encode("utf-8"))
             last_index = sample.descIndex
+            try:
                 result = await decrypt_sample(writer, reader, sample)
+            except DecryptException as e:
+                writer.write(bytes([0, 0, 0, 0]))
+                writer.close()
+                raise e
             decrypted += result
         writer.write(bytes([0, 0, 0, 0]))
         writer.close()