Files
Seg_Data_Server_Net/backend/app/main.py

173 lines
4.8 KiB
Python

from __future__ import annotations
import asyncio
import json
from pathlib import Path
from fastapi import FastAPI, HTTPException
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import FileResponse, StreamingResponse
from . import db
from .catalog import get_catalog
from .config import settings
from .jobs import cancel_job, create_job
from .modules.system.service import disk_usage, get_conda_envs, get_gpus, scan_results
from .modules.weights.service import load_manifest, sync_weights, verify_weights
from .paths import ensure_inside
from .schemas import JobCreate, ProfileCreate, WeightSyncRequest
app = FastAPI(title="Seg Data Server Net", version="0.1.0")
app.add_middleware(
CORSMiddleware,
allow_origins=["*"],
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
@app.on_event("startup")
def startup() -> None:
db.init_db()
settings.log_dir.mkdir(parents=True, exist_ok=True)
settings.weights_root.mkdir(parents=True, exist_ok=True)
@app.get("/api/health")
def health() -> dict:
return {
"ok": True,
"source_root": str(settings.source_root),
"project_root": str(settings.project_root),
"disk": disk_usage(),
}
@app.get("/api/system/gpus")
def api_gpus() -> dict:
return get_gpus()
@app.get("/api/system/envs")
def api_envs() -> dict:
return get_conda_envs()
@app.get("/api/catalog")
def api_catalog() -> dict:
return get_catalog()
@app.get("/api/profiles")
def api_profiles(kind: str | None = None) -> list[dict]:
return db.list_profiles(kind)
@app.post("/api/profiles")
def api_save_profile(profile: ProfileCreate) -> dict:
return db.upsert_profile(profile.name, profile.kind, profile.data)
@app.post("/api/jobs")
def api_create_job(request: JobCreate) -> dict:
try:
return create_job(request)
except Exception as exc:
raise HTTPException(status_code=400, detail=str(exc)) from exc
@app.get("/api/jobs")
def api_jobs(limit: int = 100) -> list[dict]:
return db.list_jobs(limit)
@app.get("/api/jobs/{job_id}")
def api_job(job_id: str) -> dict:
job = db.get_job(job_id)
if not job:
raise HTTPException(status_code=404, detail="job not found")
job["log_tail"] = db.log_tail(job["log_path"])
return job
@app.post("/api/jobs/{job_id}/cancel")
def api_cancel_job(job_id: str) -> dict:
job = cancel_job(job_id)
if not job:
raise HTTPException(status_code=404, detail="job not found")
return job
@app.get("/api/jobs/{job_id}/events")
async def api_job_events(job_id: str):
async def stream():
last_size = 0
while True:
job = db.get_job(job_id)
if not job:
yield "event: error\ndata: job not found\n\n"
return
path = Path(job["log_path"])
chunk = ""
if path.exists():
size = path.stat().st_size
if size > last_size:
with path.open("rb") as handle:
handle.seek(last_size)
chunk = handle.read(size - last_size).decode("utf-8", errors="replace")
last_size = size
payload = {"job": job, "chunk": chunk}
yield f"data: {json.dumps(payload, ensure_ascii=False)}\n\n"
if job["status"] in {"success", "failed", "cancelled"}:
return
await asyncio.sleep(1)
return StreamingResponse(stream(), media_type="text/event-stream")
@app.get("/api/results")
def api_results() -> list[dict]:
return scan_results()
@app.get("/api/artifacts/{artifact_path:path}")
def api_artifact(artifact_path: str):
candidate = Path(artifact_path)
if not candidate.is_absolute():
candidate = settings.source_root / candidate
try:
resolved = candidate.resolve()
allowed = False
for root in (settings.source_root, settings.project_root):
try:
ensure_inside(resolved, root)
allowed = True
break
except Exception:
continue
if not allowed:
raise ValueError("artifact path is outside allowed roots")
except Exception as exc:
raise HTTPException(status_code=400, detail=str(exc)) from exc
if not resolved.exists() or not resolved.is_file():
raise HTTPException(status_code=404, detail="artifact not found")
return FileResponse(resolved)
@app.get("/api/weights")
def api_weights() -> dict:
return load_manifest()
@app.post("/api/weights/sync")
def api_weight_sync(request: WeightSyncRequest) -> dict:
return sync_weights(request.mode, request.hash_files, request.skip_existing)
@app.post("/api/weights/verify")
def api_weight_verify() -> dict:
return verify_weights()