Init code

app/utils/uploader.py

@@ -0,0 +1,44 @@
+from abc import ABC, abstractmethod
+
+
+class ChunkUploadBackend(ABC):
+    @abstractmethod
+    def start(self, filename: str) -> None:
+        """Начало загрузки нового файла"""
+
+    @abstractmethod
+    def upload_chunk(self, chunk: bytes) -> None:
+        """Загрузка очередного чанка"""
+
+    @abstractmethod
+    def finish(self) -> None:
+        """Завершение загрузки"""
+
+    @abstractmethod
+    def abort(self) -> None:
+        """Прерывания загрузки"""
+
+
+class DiskChunkUploadBackend(ChunkUploadBackend):
+    def __init__(self, base_path: str):
+        import os
+
+        self.os = os
+
+        self.base_path = base_path
+        self.os.makedirs(self.base_path, exist_ok=True)
+        self._file = None
+
+    def start(self, filename):
+        self._file = open(self.os.path.join(self.base_path, filename), "wb")
+
+    def upload_chunk(self, chunk: bytes):
+        self._file.write(chunk)
+
+    def finish(self):
+        self._file.close()
+
+    def abort(self):
+        if self._file:
+            self._file.close()
+            self._file = None