Files
SonicForgeStudio/app/api/v1/presets.py
T
2026-08-10 07:57:26 +07:00

130 lines
4.7 KiB
Python

# SonicForge Preset Library API — thư viện preset VST3 (.vstpreset) nằm trong
# storage/presets (mount qua volume trong docker; thư mục storage trên Windows).
#
# Vai trò: cầu nối Carla → pedalboard. User chỉnh preset trong Carla (native
# GUI) → xuất .vstpreset → upload vào thư viện → gán vào track (preset_id trong
# synth_engine) → render_engine tải qua load_preset → âm render = âm đã chỉnh.
import os
import uuid
import json
import time
from fastapi import APIRouter, HTTPException, UploadFile, File, Depends
from fastapi.responses import FileResponse
from typing import Optional
from app.core.vst_engine import preset_library_dir, PRESET_EXTENSIONS
from app.api.v1.auth import get_current_user, enforce_password_changed
router = APIRouter()
def _safe_preset_path(preset_id: str) -> str:
"""Chống path traversal: chỉ cho phép tên file (không chứa separator)."""
if not preset_id or os.path.basename(preset_id) != preset_id:
return ""
d = preset_library_dir()
p = os.path.join(d, preset_id)
if os.path.isfile(p) and os.path.dirname(os.path.abspath(p)) == os.path.abspath(d):
return p
return ""
@router.get("")
async def list_presets():
"""Danh sách preset trong thư viện (public — frontend cần trước login)."""
d = preset_library_dir()
items = []
try:
names = sorted(os.listdir(d))
except Exception:
names = []
for f in names:
low = f.lower()
if not low.endswith(PRESET_EXTENSIONS):
continue
meta = {}
meta_path = os.path.join(d, os.path.splitext(f)[0] + ".meta")
if os.path.isfile(meta_path):
try:
with open(meta_path, "r", encoding="utf-8") as mf:
meta = json.load(mf)
except Exception:
meta = {}
try:
size = os.path.getsize(os.path.join(d, f))
except Exception:
size = 0
items.append({
"id": f,
"name": meta.get("original_name", f),
"plugin_hint": meta.get("plugin_hint", ""),
"size_bytes": size,
"created_at": meta.get("created_at", ""),
})
return {"success": True, "presets": items}
@router.post("/upload")
async def upload_preset(
file: UploadFile = File(...),
plugin_hint: Optional[str] = None,
current_user: dict = Depends(get_current_user),
):
"""Upload preset (.vstpreset / .fxp / .fxb / .dspreset) vào thư viện."""
enforce_password_changed(current_user)
filename = (file.filename or "preset.vstpreset").replace("\\", "/").split("/")[-1]
ext = os.path.splitext(filename)[1].lower()
if ext not in PRESET_EXTENSIONS:
raise HTTPException(
status_code=400,
detail=f"Định dạng preset không hỗ trợ: {ext or '(không có đuôi)'} — hỗ trợ: {', '.join(PRESET_EXTENSIONS)}",
)
contents = await file.read()
if not contents:
raise HTTPException(status_code=400, detail="File rỗng")
d = preset_library_dir()
preset_id = uuid.uuid4().hex + ext
dest = os.path.join(d, preset_id)
try:
with open(dest, "wb") as fh:
fh.write(contents)
except Exception as e:
raise HTTPException(status_code=500, detail=f"Không lưu được preset: {e}")
meta = {
"original_name": filename,
"plugin_hint": plugin_hint or "",
"size_bytes": len(contents),
"created_at": time.strftime("%Y-%m-%d %H:%M:%S"),
}
try:
with open(os.path.join(d, os.path.splitext(preset_id)[0] + ".meta"), "w", encoding="utf-8") as mf:
json.dump(meta, mf, ensure_ascii=False, indent=2)
except Exception:
pass
return {"success": True, "preset_id": preset_id, **meta}
@router.get("/{preset_id}/download")
async def download_preset(preset_id: str):
path = _safe_preset_path(preset_id)
if not path:
raise HTTPException(status_code=404, detail="Preset không tồn tại")
return FileResponse(path, filename=preset_id, media_type="application/octet-stream")
@router.delete("/{preset_id}")
async def delete_preset(preset_id: str, current_user: dict = Depends(get_current_user)):
enforce_password_changed(current_user)
path = _safe_preset_path(preset_id)
if not path:
raise HTTPException(status_code=404, detail="Preset không tồn tại")
try:
os.remove(path)
mp = os.path.join(preset_library_dir(), os.path.splitext(preset_id)[0] + ".meta")
if os.path.isfile(mp):
os.remove(mp)
except Exception as e:
raise HTTPException(status_code=500, detail=f"Không xóa được preset: {e}")
return {"success": True, "preset_id": preset_id}