Files
eventspace/backend/app/core/storage.py
Felipe Cardoso ffdf095eee Refactor file URL handling to use relative paths.
Updated file URL generation to return relative paths instead of absolute paths, ensuring better portability and consistency. Adjusted relevant methods to compute paths relative to the base directory.
2025-03-14 01:16:50 +01:00

96 lines
3.2 KiB
Python

import os
import shutil
from abc import ABC, abstractmethod
from pathlib import Path
from typing import Tuple
from fastapi import UploadFile
from app.core.config import settings
class StorageProvider(ABC):
"""Base abstract class for storage providers."""
upload_folder: Path
@abstractmethod
async def save_file(self, file: UploadFile, destination: str) -> str:
"""Save a file to storage and return the relative path."""
pass
@abstractmethod
def generate_presigned_url(self, file_path: str,
filename: str,
content_type: str,
expires_in: int = 300) -> Tuple[str, str]:
"""
Generate a presigned URL for file upload.
Returns: (upload_url, file_url)
"""
pass
@abstractmethod
def get_uploaded_file_url(self, file_path: str) -> str:
"""Get the URL for accessing a file."""
pass
@abstractmethod
def get_file_url(self, file_path: str) -> str:
"""Get the URL for accessing a file."""
pass
class LocalStorageProvider(StorageProvider):
"""Local filesystem storage provider."""
def __init__(self, upload_folder: str, files_url_path: str):
self.upload_folder = Path(upload_folder)
self.files_url_path = files_url_path
# Ensure upload directory exists
os.makedirs(self.upload_folder, exist_ok=True)
async def save_file(self, file: UploadFile, destination: str) -> str:
"""Save an uploaded file to the local filesystem."""
# Ensure destination directory exists
dest_path = self.upload_folder / destination
os.makedirs(dest_path.parent, exist_ok=True)
# Save the file
with open(dest_path, "wb") as buffer:
shutil.copyfileobj(file.file, buffer)
# Return the relative path
return destination
def generate_presigned_url(self, file_path: str,
filename: str,
content_type: str,
expires_in: int = 300) -> Tuple[str, str]:
"""
Generate a token-based upload URL for local storage.
This simulates presigned URLs for local storage.
"""
from app.utils.security import create_upload_token
# Generate a unique token for this upload
token = create_upload_token(file_path, content_type, expires_in)
# The upload URL is to our custom upload endpoint
upload_url = f"{settings.API_VERSION_STR}/uploads/{token}"
# Return just the relative path
upload_folder_relative = os.path.relpath(self.upload_folder, settings.DATA_FILES_DIR)
file_url = f"{upload_folder_relative}/{file_path}"
return upload_url, file_url
def get_uploaded_file_url(self, file_path: str) -> str:
"""Get the URL for accessing a file."""
upload_folder_relative = os.path.relpath(self.upload_folder, settings.DATA_FILES_DIR)
return f"{upload_folder_relative}/{file_path}"
def get_file_url(self, file_path: str) -> str:
"""Get the URL for accessing a file."""
# Return just the relative path
return file_path