mirror of
https://github.com/flibusta-apps/telegram_files_server.git
synced 2025-12-06 12:35:39 +01:00
124 lines
3.4 KiB
Python
124 lines
3.4 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 telegram_files_storage import AiogramFilesStorage, TelethonFilesStorage
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from app.models import UploadedFile, UploadBackends
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from app.services.storages import StoragesContainer
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class FileUploader:
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_aiogram_storage_index = 0
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_telethon_storage_index = 0
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@classmethod
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@property
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def AIOGRAM_STORAGES(cls) -> list[AiogramFilesStorage]:
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return StoragesContainer.AIOGRAM_STORAGES
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@classmethod
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@property
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def TELETHON_STORAGES(cls) -> list[TelethonFilesStorage]:
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return StoragesContainer.TELETHON_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.AIOGRAM_STORAGES and not self.TELETHON_STORAGES:
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raise ValueError("Files storage not exist!")
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if await self._upload_via_aiogram():
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return True
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return await self._upload_via_telethon()
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async def _upload_via_aiogram(self) -> bool:
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if not self.AIOGRAM_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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if len(data) > 50 * 1000 * 1000:
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return False
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bytes_io = BytesIO(data)
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bytes_io.name = self.file.filename
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storage = self.get_aiogram_storage()
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self.upload_data = await storage.upload(bytes_io, self.caption) # type: ignore
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self.upload_backend = UploadBackends.aiogram
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return True
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async def _upload_via_telethon(self) -> bool:
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if not self.TELETHON_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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storage = self.get_telethon_storage()
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self.upload_data = await storage.upload(
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bytes_io, caption=self.caption
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) # type: ignore
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self.upload_backend = UploadBackends.telethon
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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_aiogram_storage(cls) -> AiogramFilesStorage:
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if not cls.AIOGRAM_STORAGES:
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raise ValueError("Aiogram storage not exist!")
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cls._aiogram_storage_index = (cls._aiogram_storage_index + 1) % len(
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cls.AIOGRAM_STORAGES
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)
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return cls.AIOGRAM_STORAGES[cls._aiogram_storage_index]
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@classmethod
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def get_telethon_storage(cls) -> TelethonFilesStorage:
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if not cls.TELETHON_STORAGES:
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raise ValueError("Telethon storage not exists!")
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cls._telethon_storage_index = (cls._telethon_storage_index + 1) % len(
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cls.TELETHON_STORAGES
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)
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return cls.TELETHON_STORAGES[cls._telethon_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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