mirror of
https://github.com/flibusta-apps/telegram_files_server.git
synced 2025-12-06 12:35:39 +01:00
106 lines
3.0 KiB
Python
106 lines
3.0 KiB
Python
from io import BytesIO
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from typing import Optional
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from fastapi import UploadFile
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from app.models import UploadedFile, UploadBackends
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from app.services.storages import StoragesContainer, BotStorage, UserStorage
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class FileUploader:
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_bot_storage_index = 0
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_user_storage_index = 0
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@classmethod
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@property
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def bot_storages(cls) -> list[BotStorage]:
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return StoragesContainer.BOT_STORAGES
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@classmethod
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@property
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def user_storages(cls) -> list[UserStorage]:
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return StoragesContainer.USER_STORAGES
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def __init__(self, file: UploadFile, caption: Optional[str] = None) -> None:
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self.file = file
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self.caption = caption
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self.upload_data: Optional[dict] = None
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self.upload_backend: Optional[UploadBackends] = None
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async def _upload(self) -> bool:
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if not self.bot_storages and not self.user_storages:
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raise ValueError("Files storage not exist!")
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if await self._upload_via(UploadBackends.bot):
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return True
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return await self._upload_via(UploadBackends.user)
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async def _upload_via(self, storage_type: UploadBackends) -> bool:
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if not self.bot_storages:
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return False
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data = await self.file.read()
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if isinstance(data, str):
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data = data.encode()
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bytes_io = BytesIO(data)
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bytes_io.name = self.file.filename
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if storage_type == UploadBackends.bot:
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storage = self.get_bot_storage()
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else:
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storage = self.get_user_storage()
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data = await storage.upload(bytes_io, caption=self.caption) # type: ignore
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if not data:
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return False
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self.upload_data = {"chat_id": data[0], "message_id": data[1]}
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self.upload_backend = storage_type
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return True
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async def _save_to_db(self) -> UploadedFile:
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return await UploadedFile.objects.create(
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backend=self.upload_backend,
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data=self.upload_data,
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)
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@classmethod
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def get_bot_storage(cls) -> BotStorage:
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if not cls.bot_storages:
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raise ValueError("Aiogram storage not exist!")
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bot_storages: list[BotStorage] = cls.bot_storages # type: ignore
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cls._bot_storage_index = (cls._bot_storage_index + 1) % len(bot_storages)
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return bot_storages[cls._bot_storage_index]
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@classmethod
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def get_user_storage(cls) -> UserStorage:
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if not cls.user_storages:
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raise ValueError("Telethon storage not exists!")
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user_storages: list[UserStorage] = cls.user_storages # type: ignore
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cls._user_storage_index = (cls._user_storage_index + 1) % len(user_storages)
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return user_storages[cls._user_storage_index]
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@classmethod
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async def upload(
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cls, file: UploadFile, caption: Optional[str] = None
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) -> Optional[UploadedFile]:
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uploader = cls(file, caption)
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upload_result = await uploader._upload()
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if not upload_result:
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return None
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return await uploader._save_to_db()
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