89 lines
4.4 KiB
Python
89 lines
4.4 KiB
Python
from pathlib import Path
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from fastapi import APIRouter, HTTPException, Request
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from fastapi.responses import FileResponse, HTMLResponse, Response
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from src.frontend_bundle import build_frontend
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from src.compression import _quality
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router = APIRouter()
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DASHBOARD_FILE = Path(__file__).resolve().parent.parent / "frontend" / "index.html"
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MANIFEST_FILE = DASHBOARD_FILE.parent / "manifest.webmanifest"
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FRONTEND_BUILD = build_frontend(DASHBOARD_FILE.parent)
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LOGIN_HTML = """<!doctype html>
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<html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
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<title>Sign in · Stackchain Dashboard</title>
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<style>body{margin:0;background:#07111f;color:#eef6ff;font:16px system-ui;display:grid;min-height:100vh;place-items:center}main{box-sizing:border-box;width:min(90vw,24rem);padding:2rem;border:1px solid #29415d;border-radius:1rem;background:#0d1b2b}label,input,button{display:block;width:100%;box-sizing:border-box}input,button{min-height:48px;margin-top:.6rem;border-radius:.6rem;border:1px solid #49647f;padding:.75rem}button{margin-top:1rem;background:#55d6be;color:#06121b;font-weight:700}p{color:#a9bed3}</style></head>
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<body><main><h1>Operator sign in</h1><p>Use an enrolled passkey, or enter the dashboard access token for bootstrap and recovery. The token is exchanged for a private, short-lived session and is never stored on this device.</p>
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<form id="sign-in"><label>Device name<input name="device_label" type="text" autocomplete="name" maxlength="64" value="This device" required></label><button id="passkey-sign-in" type="button">Sign in with a passkey</button><p>Recovery</p><label>Access token<input name="access_token" type="password" autocomplete="current-password" required></label><button id="submit-sign-in">Sign in with access token</button><p id="status" role="status" aria-live="polite"></p></form></main>
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<script src="static/private-device-data.js"></script><script src="static/login.js"></script></body></html>"""
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class RevalidatingHTMLResponse(HTMLResponse):
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def __init__(self, content, status_code=200, headers=None, media_type=None, background=None):
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response_headers = dict(headers or {})
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response_headers["Cache-Control"] = "no-cache"
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super().__init__(content, status_code, response_headers, media_type, background)
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@router.get("/", response_class=RevalidatingHTMLResponse)
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async def dashboard() -> str:
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return FRONTEND_BUILD.dashboard_html
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@router.get("/login", response_class=RevalidatingHTMLResponse)
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async def login() -> str:
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return LOGIN_HTML
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@router.get("/manifest.webmanifest", response_class=FileResponse)
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async def web_app_manifest() -> FileResponse:
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return FileResponse(MANIFEST_FILE, media_type="application/manifest+json")
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@router.get("/service-worker.js")
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async def service_worker() -> Response:
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return Response(
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FRONTEND_BUILD.service_worker_source,
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media_type="application/javascript",
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headers={"Service-Worker-Allowed": "/", "Cache-Control": "no-cache"},
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)
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@router.get("/runtime-{digest}.js")
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async def runtime_bundle(digest: str, request: Request) -> Response:
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if digest != FRONTEND_BUILD.runtime_digest:
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raise HTTPException(status_code=404, detail="Runtime revision not found")
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accepts_gzip = _quality(request.headers.get("Accept-Encoding", ""), "gzip") > 0
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return Response(
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(
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FRONTEND_BUILD.runtime_gzip_bytes
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if accepts_gzip
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else FRONTEND_BUILD.runtime_bytes
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),
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media_type="application/javascript",
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headers={
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"Cache-Control": "public, max-age=31536000, immutable",
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"Vary": "Accept-Encoding",
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**({"Content-Encoding": "gzip"} if accepts_gzip else {}),
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},
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)
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@router.get("/feature-{name}-{digest}.js")
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async def feature_bundle(name: str, digest: str, request: Request) -> Response:
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bundle = FRONTEND_BUILD.feature_bundles.get(name)
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if bundle is None or digest != bundle.runtime_digest:
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raise HTTPException(status_code=404, detail="Feature revision not found")
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accepts_gzip = _quality(request.headers.get("Accept-Encoding", ""), "gzip") > 0
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return Response(
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bundle.runtime_gzip_bytes if accepts_gzip else bundle.runtime_bytes,
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media_type="application/javascript",
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headers={
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"Cache-Control": "public, max-age=31536000, immutable",
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"Vary": "Accept-Encoding",
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**({"Content-Encoding": "gzip"} if accepts_gzip else {}),
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},
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)
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