[3.x] Check status code when downloading file (#1079)

* Check status code when downloading file and raise an error if someting bad happends

* Style fixes

* Add doc

* Use "towncrier create <issue>.<type>" for creating file

aiogram/client/bot.py

@@ -304,7 +304,12 @@ class Bot(ContextInstanceMixin["Bot"]):
             close_stream = True
         else:
             url = self.session.api.file_url(self.__token, file_path)
-            stream = self.session.stream_content(url=url, timeout=timeout, chunk_size=chunk_size)
+            stream = self.session.stream_content(
+                url=url,
+                timeout=timeout,
+                chunk_size=chunk_size,
+                raise_for_status=True,
+            )
 
         try:
             if isinstance(destination, (str, pathlib.Path)):

aiogram/client/session/aiohttp.py

@@ -162,11 +162,11 @@ class AiohttpSession(BaseSession):
         return cast(TelegramType, response.result)
 
     async def stream_content(
-        self, url: str, timeout: int, chunk_size: int
+        self, url: str, timeout: int, chunk_size: int, raise_for_status: bool
     ) -> AsyncGenerator[bytes, None]:
         session = await self.create_session()
 
-        async with session.get(url, timeout=timeout) as resp:
+        async with session.get(url, timeout=timeout, raise_for_status=raise_for_status) as resp:
             async for chunk in resp.content.iter_chunked(chunk_size):
                 yield chunk
 

aiogram/client/session/base.py

@@ -153,7 +153,7 @@ class BaseSession(abc.ABC):
 
     @abc.abstractmethod
     async def stream_content(
-        self, url: str, timeout: int, chunk_size: int
+        self, url: str, timeout: int, chunk_size: int, raise_for_status: bool
     ) -> AsyncGenerator[bytes, None]:  # pragma: no cover
         """
         Stream reader

aiogram/types/input_file.py

@@ -135,7 +135,10 @@ class URLInputFile(InputFile):
 
         bot = Bot.get_current(no_error=False)
         stream = bot.session.stream_content(
-            url=self.url, timeout=self.timeout, chunk_size=self.chunk_size
+            url=self.url,
+            timeout=self.timeout,
+            chunk_size=self.chunk_size,
+            raise_for_status=True,
         )
 
         async for chunk in stream: