Refactor to make full file list completely non-reactive because pinia persistence was causing long delays especially while searching when there were a lot of files. Implement better ghosts that do not alter the file list.

Implement Admin Settings dialog for user management and toggling the public server flag, not needing CLI for maintenance anymore.

.gitignore

@@ -4,5 +4,5 @@
 __pycache__/
 *.egg-info/
 /cista/_version.py
-/cista/wwwroot/*
+/cista/frontend-build/
 /dist

README.md

@@ -38,6 +38,39 @@ pip install cista --break-system-packages
 
 The server remembers its settings in the config folder (default `~/.local/share/cista/`), including the listen port and directory, for future runs without arguments.
 
+## Authentication
+
+Cista supports three authentication modes:
+
+### Built-in Authentication (default)
+
+User accounts are managed directly by Cista. Create users with the `--user` flag:
+
+```fish
+uvx cista --user admin --privileged  # Create admin user
+uvx cista --user guest               # Create regular user
+```
+
+Privileged users can manage other users and change settings via the Admin Settings menu.
+
+### Public Mode
+
+In public mode, anyone can read, send and even delete files without without logging in. Privileged users can still log in via the menu to access admin settings, from where the public mode can be toggled on or off.
+
+### Paskia SSO Authentication
+
+For centralized authentication, Cista can integrate with [Paskia](https://git.zi.fi/LeoVasanko/paskia) SSO server. Set the `PASKIA_BACKEND_URL` environment variable:
+
+```fish
+PASKIA_BACKEND_URL=http://localhost:4401 uvx cista
+```
+
+In Paskia mode:
+- All `/auth/*` requests are proxied to the Paskia backend
+- Users with `cista:login` permission can access files
+- Users with `cista:admin` permission get privileged access (Admin Settings)
+- Public mode works with Paskia: unauthenticated users can browse, while the menu has option to login
+
 ### Internet Access
 
 Most admins find the [Caddy](https://caddyserver.com/) web server convenient for its auto TLS certificates and all. A proxy also allows running multiple web services or Cista instances on the same IP address but different (sub)domains.

cista/__main__.py

@@ -10,8 +10,46 @@ from cista.util import pwgen
 
 del app, server80.app  # Only import needed, for Sanic multiprocessing
 
-doc = f"""Cista {cista.__version__} - A file storage for the web.
 
+def create_banner():
+    """Create a framed banner with the Cista version."""
+    title = f"Cista {cista.__version__}"
+    subtitle = "A file storage for the web"
+    width = max(len(title), len(subtitle)) + 4
+
+    return f"""\
+╭{"─" * width}╮
+│{title:^{width}}│
+│{subtitle:^{width}}│
+╰{"─" * width}╯
+"""
+
+
+def create_startup_box(*, folder, url, unix=None, dev=False, paskia_url=None):
+    """Create a framed startup box with server information."""
+    title = f"Cista {cista.__version__}"
+    listen = unix if unix else url
+    location = f"{folder} @ {listen}"
+    lines = [title, location]
+    if paskia_url:
+        lines.append(f"Paskia: {paskia_url}")
+    if dev:
+        lines.append("dev mode")
+
+    # Calculate width based on content
+    inner_width = max(len(line) for line in lines) + 2
+
+    # Build the box
+    box = [f"╭{'─' * inner_width}╮"]
+    for line in lines:
+        box.append(f"│ {line:<{inner_width - 1}}│")
+    box.append(f"╰{'─' * inner_width}╯")
+    return "\n".join(box) + "\n"
+
+
+banner = create_banner()
+
+doc = """\
 Usage:
   cista [-c <confdir>] [-l <host>] [--import-droppy] [--dev] [<path>]
   cista [-c <confdir>] --user <name> [--privileged] [--password]
@@ -19,20 +57,32 @@ Usage:
 Options:
   -c CONFDIR        Custom config directory
   -l LISTEN-ADDR    Listen on
-                       :8000 (localhost port, plain http)
+                       :8989 (localhost port, plain http)
                        <addr>:3000 (bind another address, port)
                        /path/to/unix.sock (unix socket)
                        example.com (run on 80 and 443 with LetsEncrypt)
   --import-droppy   Import Droppy config from ~/.droppy/config
   --dev             Developer mode (reloads, friendlier crashes, more logs)
 
-Listen address, path and imported options are preserved in config, and only
-custom config dir and dev mode need to be specified on subsequent runs.
+Listen address and path are preserved in config,
+and only config dir and dev mode need to be specified on subsequent runs.
 
 User management:
   --user NAME       Create or modify user
   --privileged      Give the user full admin rights
   --password        Reset password
+
+Environment:
+  PASKIA_BACKEND_URL   Paskia single sign-on (e.g. http://localhost:4401)
+                       https://git.zi.fi/leovasanko/paskia
+"""
+
+first_time_help = """\
+No config file found! Get started with:
+  cista --user yourname --privileged     # If you want user accounts
+  cista -l :8989 /path/to/files          # Run the server on localhost:8989
+
+See cista --help for other options!
 """
 
 
@@ -44,11 +94,18 @@ def main():
     try:
         return _main()
     except Exception as e:
-        print("Error:", e)
+        sys.stderr.write(f"Error: {e}\n")
         return 1
 
 
 def _main():
+    # The banner printing differs by mode, and needs to be done before docopt() printing its messages
+    if any(arg in sys.argv for arg in ("--help", "-h")):
+        sys.stdout.write(banner)
+    elif "--version" in sys.argv:
+        sys.stdout.write(f"cista {cista.__version__}\n")
+        return 0
+    # Don't print banner yet for normal startup - we'll print the startup box later
     args = docopt(doc)
     if args["--user"]:
         return _user(args)
@@ -62,18 +119,11 @@ def _main():
         path = None
     _confdir(args)
     exists = config.conffile.exists()
-    print(config.conffile, exists)
     import_droppy = args["--import-droppy"]
     necessary_opts = exists or import_droppy or path
     if not necessary_opts:
         # Maybe run without arguments
-        print(doc)
-        print(
-            "No config file found! Get started with one of:\n"
-            "  cista --user yourname --privileged\n"
-            "  cista --import-droppy\n"
-            "  cista -l :8000 /path/to/files\n"
-        )
+        sys.stderr.write(first_time_help)
         return 1
     settings = {}
     if import_droppy:
@@ -82,6 +132,7 @@ def _main():
                 f"Importing Droppy: First remove the existing configuration:\n  rm {config.conffile}",
             )
         settings = droppy.readconf()
+        # Droppy's public flag is kept as-is (same name in our config)
     if path:
         settings["path"] = path
     elif not exists:
@@ -89,22 +140,25 @@ def _main():
     if listen:
         settings["listen"] = listen
     elif not exists:
-        settings["listen"] = ":8000"
-    if not exists and not import_droppy:
-        # We have no users, so make it public
-        settings["public"] = True
-    operation = config.update_config(settings)
-    print(f"Config {operation}: {config.conffile}")
+        settings["listen"] = ":8989"
+    config.update_config(settings)
     # Prepare to serve
-    unix = None
-    url, _ = serve.parse_listen(config.config.listen)
+    url, opts = serve.parse_listen(config.config.listen)
     if not config.config.path.is_dir():
         raise ValueError(f"No such directory: {config.config.path}")
-    extra = f" ({unix})" if unix else ""
     dev = args["--dev"]
-    if dev:
-        extra += " (dev mode)"
-    print(f"Serving {config.config.path} at {url}{extra}")
+    # Check for Paskia SSO
+    from cista.sso import PASKIA_BACKEND_URL
+
+    # Print startup box
+    startup_box = create_startup_box(
+        folder=config.config.path,
+        url=url,
+        unix=opts.get("unix"),
+        dev=dev,
+        paskia_url=PASKIA_BACKEND_URL or None,
+    )
+    sys.stderr.write(startup_box)
     # Run the server
     serve.run(dev=dev)
     return 0
@@ -132,12 +186,12 @@ def _user(args):
         # Defaults for new config when user is created
         operation = config.update_config(
             {
-                "listen": ":8000",
+                "listen": ":8989",
                 "path": Path.home() / "Downloads",
                 "public": False,
             }
         )
-        print(f"Config {operation}: {config.conffile}\n")
+        sys.stderr.write(f"Config {operation}: {config.conffile}\n\n")
 
     name = args["--user"]
     if not name or not name.isidentifier():
@@ -155,13 +209,13 @@ def _user(args):
         changes["password"] = pw = pwgen.generate()
         info += f"\n  Password: {pw}\n"
     res = config.update_user(name, changes)
-    print(info)
+    sys.stderr.write(f"{info}\n")
     if res == "read":
-        print("  No changes")
+        sys.stderr.write("  No changes\n")
 
     if operation == "created":
-        print(
-            "Now you can run the server:\n  cista    # defaults set: -l :8000 ~/Downloads\n"
+        sys.stderr.write(
+            "Now you can run the server:\n  cista    # defaults set: -l :8989 ~/Downloads\n"
         )
 
 

cista/api.py

@@ -1,11 +1,13 @@
 import asyncio
 import typing
+from pathlib import PurePosixPath
 from secrets import token_bytes
 
 import msgspec
-from sanic import Blueprint
+from sanic import Blueprint, json
+from sanic.exceptions import BadRequest
 
-from cista import __version__, config, watching
+from cista import __version__, auth, config, sso, watching
 from cista.fileio import FileServer
 from cista.protocol import ControlTypes, FileRange, StatusMsg
 from cista.util.apphelpers import asend, websocket_wrapper
@@ -15,12 +17,12 @@ fileserver = FileServer()
 
 
 @bp.before_server_start
-async def start_fileserver(app, _):
+async def start_fileserver(app):
     await fileserver.start()
 
 
 @bp.after_server_stop
-async def stop_fileserver(app, _):
+async def stop_fileserver(app):
     await fileserver.stop()
 
 
@@ -52,6 +54,9 @@ async def upload(req, ws):
         if pos != req.end:
             d = f"{len(data)} bytes" if isinstance(data, bytes) else data
             raise ValueError(f"Expected {req.end - pos} more bytes, got {d}")
+        # Signal the watcher about the uploaded file and its parent directories
+        path = PurePosixPath(req.name)
+        watching.notify_change(path, *path.parents)
         # Report success
         res = StatusMsg(status="ack", req=req)
         await asend(ws, res)
@@ -86,12 +91,36 @@ async def control(req, ws):
     while True:
         cmd = msgspec.json.decode(await ws.recv(), type=ControlTypes)
         await asyncio.to_thread(cmd)
+        # Signal the watcher about affected paths
+        watching.notify_change(*cmd.affected_paths())
         await asend(ws, StatusMsg(status="ack", req=cmd))
 
 
 @bp.websocket("watch")
 @websocket_wrapper
 async def watch(req, ws):
+    # Build user info from either built-in auth or SSO
+    user_info = None
+    if sso.paskia_enabled():
+        # SSO auth: call validation to get user info (don't enforce auth in public mode)
+        try:
+            await sso.validate_sso_request(req)
+        except Exception:
+            pass  # Ignore auth errors, user_info stays None
+        if sso_user := getattr(req.ctx, "sso_user", None):
+            ctx = sso_user.get("ctx", {})
+            perms = ctx.get("permissions", [])
+            user_info = {
+                "username": ctx.get("user", {}).get("display_name", ""),
+                "privileged": "cista:admin" in perms,
+            }
+    elif req.ctx.user:
+        # Built-in auth: use local user database
+        user_info = {
+            "username": req.ctx.username,
+            "privileged": req.ctx.user.privileged,
+        }
+
     await ws.send(
         msgspec.json.encode(
             {
@@ -99,13 +128,9 @@ async def watch(req, ws):
                     "name": config.config.name or config.config.path.name,
                     "version": __version__,
                     "public": config.config.public,
+                    "paskia": sso.paskia_enabled(),
                 },
-                "user": {
-                    "username": req.ctx.username,
-                    "privileged": req.ctx.user.privileged,
-                }
-                if req.ctx.user
-                else None,
+                "user": user_info,
             }
         ).decode()
     )
@@ -119,8 +144,12 @@ async def watch(req, ws):
         # Send updates
         while True:
             await ws.send(await q.get())
+    except RuntimeError as e:
+        if str(e) == "cannot schedule new futures after shutdown":
+            return  # Server shutting down, drop the WebSocket
+        raise
     finally:
-        del watching.pubsub[uuid]
+        watching.pubsub.pop(uuid, None)  # Remove whether it got added yet or not
 
 
 def subscribe(uuid, ws):
@@ -132,3 +161,18 @@ def subscribe(uuid, ws):
             watching.format_space(watching.state.space),
             watching.format_root(watching.state.root),
         )
+
+
+@bp.put("config/public")
+async def update_public(request):
+    await auth.verify(request, privileged=True)
+    try:
+        public = request.json["public"]
+        if not isinstance(public, bool):
+            raise ValueError("public must be a boolean")
+    except KeyError:
+        raise BadRequest("Missing public field") from None
+    except ValueError as e:
+        raise BadRequest(str(e)) from None
+    config.update_config({"public": public})
+    return json({"message": "Public access setting updated", "public": public})

cista/app.py

@@ -1,7 +1,6 @@
 import asyncio
 import datetime
 import mimetypes
-import threading
 from concurrent.futures import ThreadPoolExecutor
 from multiprocessing import cpu_count
 from pathlib import Path, PurePath, PurePosixPath
@@ -9,7 +8,6 @@ from stat import S_IFDIR, S_IFREG
 from urllib.parse import unquote
 from wsgiref.handlers import format_date_time
 
-import brotli
 import sanic.helpers
 from blake3 import blake3
 from sanic import Blueprint, Sanic, empty, raw, redirect
@@ -17,8 +15,9 @@ from sanic.exceptions import Forbidden, NotFound
 from sanic.log import logger
 from setproctitle import setproctitle
 from stream_zip import ZIP_AUTO, stream_zip
+from zstandard import ZstdCompressor
 
-from cista import auth, config, preview, session, watching
+from cista import auth, config, preview, session, sso, watching
 from cista.api import bp
 from cista.util.apphelpers import handle_sanic_exception
 
@@ -26,7 +25,11 @@ from cista.util.apphelpers import handle_sanic_exception
 sanic.helpers._ENTITY_HEADERS = frozenset()
 
 app = Sanic("cista", strict_slashes=True)
-app.blueprint(auth.bp)
+# Register either SSO proxy or built-in auth routes based on PASKIA_BACKEND_URL
+if sso.paskia_enabled():
+    app.blueprint(sso.bp)  # SSO proxy for /auth/* routes
+else:
+    app.blueprint(auth.bp)  # Built-in auth routes
 app.blueprint(preview.bp)
 app.blueprint(bp)
 app.exception(Exception)(handle_sanic_exception)
@@ -36,21 +39,27 @@ setproctitle("cista-main")
 
 
 @app.before_server_start
-async def main_start(app, loop):
+async def main_start(app):
     config.load_config()
     setproctitle(f"cista {config.config.path.name}")
-    workers = max(2, min(8, cpu_count()))
+    # Small pool for memory-intensive preview generation
+    preview_workers = max(2, min(8, cpu_count()))
     app.ctx.threadexec = ThreadPoolExecutor(
-        max_workers=workers, thread_name_prefix="cista-ioworker"
+        max_workers=preview_workers, thread_name_prefix="cista-preview"
     )
-    await watching.start(app, loop)
+    # Larger pool for long-running but low-memory zip operations
+    app.ctx.zipexec = ThreadPoolExecutor(max_workers=32, thread_name_prefix="cista-zip")
+    watching.start(app)
 
 
-@app.after_server_stop
-async def main_stop(app, loop):
-    quit.set()
-    await watching.stop(app, loop)
+# Sanic sometimes fails to execute after_server_stop, so we do it before instead (potentially interrupting handlers)
+@app.before_server_stop
+async def main_stop(app):
+    watching.stop(app)
     app.ctx.threadexec.shutdown()
+    app.ctx.zipexec.shutdown(cancel_futures=True)
+    await sso.close_client()
+    logger.debug("Cista worker threads all finished")
 
 
 @app.on_request
@@ -72,10 +81,23 @@ async def use_session(req):
         raise Forbidden("Invalid origin: Cross-Site requests not permitted")
 
 
+@app.on_response
+async def forward_sso_cookies(req, res):
+    """Forward Set-Cookie headers from SSO validation to client."""
+    if cookies := getattr(req.ctx, "sso_cookies", None):
+        for cookie in cookies:
+            res.headers.add("set-cookie", cookie)
+
+
 @app.before_server_start
-def http_fileserver(app, _):
+def http_fileserver(app):
     bp = Blueprint("fileserver")
-    bp.on_request(auth.verify)
+
+    @bp.on_request
+    async def verify_fileserver(request):
+        """Verify access to file server routes."""
+        await auth.verify(request)
+
     bp.static(
         "/files/",
         config.config.path,
@@ -91,8 +113,9 @@ www = {}
 
 def _load_wwwroot(www):
     wwwnew = {}
-    base = Path(__file__).with_name("wwwroot")
+    base = Path(__file__).with_name("frontend-build")
     paths = [PurePath()]
+    zstd = ZstdCompressor(level=18)
     while paths:
         path = paths.pop(0)
         current = base / path
@@ -124,11 +147,11 @@ def _load_wwwroot(www):
                 else "no-cache",
                 "content-type": mime,
             }
-            # Precompress with Brotli
-            br = brotli.compress(data)
-            if len(br) >= len(data):
-                br = False
-            wwwnew[name] = data, br, headers
+            # Precompress with ZSTD
+            zs = zstd.compress(data)
+            if len(zs) >= len(data):
+                zs = False
+            wwwnew[name] = data, zs, headers
     if not wwwnew:
         msg = f"Web frontend missing from {base}\n  Did you forget: hatch build\n"
         if not www:
@@ -149,9 +172,8 @@ def _load_wwwroot(www):
 
 @app.before_server_start
 async def start(app):
-    await load_wwwroot(app)
-    if app.debug:
-        app.add_task(refresh_wwwroot(), name="refresh_wwwroot")
+    if not app.debug:
+        await load_wwwroot(app)
 
 
 async def load_wwwroot(app):
@@ -161,54 +183,32 @@ async def load_wwwroot(app):
     )
 
 
-quit = threading.Event()
-
-
-async def refresh_wwwroot():
-    try:
-        while not quit.is_set():
-            try:
-                wwwold = www
-                await load_wwwroot(app)
-                changes = ""
-                for name in sorted(www):
-                    attr = www[name]
-                    if wwwold.get(name) == attr:
-                        continue
-                    headers = attr[2]
-                    changes += f"{headers['last-modified']} {headers['etag']} /{name}\n"
-                for name in sorted(set(wwwold) - set(www)):
-                    changes += f"Deleted /{name}\n"
-                if changes:
-                    print(f"Updated wwwroot:\n{changes}", end="", flush=True)
-            except Exception as e:
-                print(f"Error loading wwwroot: {e!r}")
-            await asyncio.sleep(0.5)
-    except asyncio.CancelledError:
-        pass
-
-
 @app.route("/<path:path>", methods=["GET", "HEAD"])
 async def wwwroot(req, path=""):
     """Frontend files only"""
+    if app.debug:
+        raise NotFound(
+            "Dev mode: frontend-build is not served on backend (you should connect vite)",
+            extra={"name": path},
+        )
     name = unquote(path)
     if name not in www:
         raise NotFound(f"File not found: /{path}", extra={"name": name})
-    data, br, headers = www[name]
+    data, zs, headers = www[name]
     if req.headers.if_none_match == headers["etag"]:
         # The client has it cached, respond 304 Not Modified
         return empty(304, headers=headers)
-    # Brotli compressed?
-    if br and "br" in req.headers.accept_encoding.split(", "):
-        headers = {**headers, "content-encoding": "br"}
-        data = br
+    # Zstandard compressed?
+    if zs and "zstd" in req.headers.accept_encoding.split(", "):
+        headers = {**headers, "content-encoding": "zstd"}
+        data = zs
     return raw(data, headers=headers)
 
 
 @app.route("/favicon.ico", methods=["GET", "HEAD"])
 async def favicon(req):
     # Browsers keep asking for it when viewing files (not HTML with icon link)
-    return redirect("/assets/logo-97d1d7eb.svg", status=308)
+    return redirect("/assets/logo-ctv8tVwU.svg", status=308)
 
 
 def get_files(wanted: set) -> list[tuple[PurePosixPath, Path]]:
@@ -236,6 +236,7 @@ def get_files(wanted: set) -> list[tuple[PurePosixPath, Path]]:
 @app.get("/zip/<keys>/<zipfile:ext=zip>")
 async def zip_download(req, keys, zipfile, ext):
     """Download a zip archive of the given keys"""
+    await auth.verify(req)
 
     wanted = set(keys.split("+"))
     files = get_files(wanted)
@@ -266,27 +267,40 @@ async def zip_download(req, keys, zipfile, ext):
                 yield chunk
         assert size == 0
 
+    pending_put = None  # Current queue.put future, can be cancelled
+
     def worker():
+        nonlocal pending_put
         try:
             for chunk in stream_zip(local_files(files)):
-                asyncio.run_coroutine_threadsafe(queue.put(chunk), loop).result()
+                future = asyncio.run_coroutine_threadsafe(queue.put(chunk), loop)
+                pending_put = future
+                future.result()  # Blocks until queue has space
+        except asyncio.CancelledError:
+            logger.info("ZIP download cancelled by client disconnect")
         except Exception:
             logger.exception("Error streaming ZIP")
             raise
         finally:
+            pending_put = None
             asyncio.run_coroutine_threadsafe(queue.put(None), loop)
 
-    # Don't block the event loop: run in a thread
+    # Don't block the event loop: run in a thread (use larger zip pool)
     queue = asyncio.Queue(maxsize=1)
     loop = asyncio.get_event_loop()
-    thread = loop.run_in_executor(app.ctx.threadexec, worker)
+    thread = loop.run_in_executor(app.ctx.zipexec, worker)
 
     # Stream the response
     res = await req.respond(
         content_type="application/zip",
         headers={"cache-control": "no-store"},
     )
-    while chunk := await queue.get():
-        await res.send(chunk)
+    try:
+        while chunk := await queue.get():
+            await res.send(chunk)
+    finally:
+        # Cancel any pending put to unblock and stop the worker
+        if pending_put:
+            pending_put.cancel()
 
     await thread  # If it raises, the response will fail download

cista/auth.py

@@ -10,6 +10,175 @@ from sanic import Blueprint, html, json, redirect
 from sanic.exceptions import BadRequest, Forbidden, Unauthorized
 
 from cista import config, session
+from cista.util import pwgen
+
+_LOGIN_PAGE_CSS = """\
+/* ===========================================
+   LOGIN PAGE STYLES
+   Must match ModalDialog.vue global styles.
+   =========================================== */
+* { box-sizing: border-box; }
+body {
+    font-family: 'Roboto', system-ui, -apple-system, sans-serif;
+    font-size: 1rem;
+    margin: 0;
+    min-height: 100vh;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background: transparent;
+}
+.login-card {
+    background: #ddd;
+    color: #000;
+    border-radius: 0.5rem;
+    box-shadow: 0 0 1rem #0008;
+    width: 100%;
+    max-width: 320px;
+}
+h1 {
+    background: #146;
+    color: #fff;
+    margin: 0;
+    padding: 0.5rem 1rem;
+    font-size: 1.2rem;
+    font-weight: normal;
+    border-radius: 0.5rem 0.5rem 0 0;
+}
+.content {
+    padding: 1rem;
+}
+.message {
+    color: #444;
+    margin: 0 0 0.5rem 0;
+    font-size: 0.875rem;
+}
+form {
+    display: grid;
+    grid-template-columns: auto 1fr;
+    gap: 0.5rem 1rem;
+    align-items: center;
+}
+label {
+    font-size: 1rem;
+}
+input[type="text"],
+input[type="password"] {
+    font: inherit;
+    font-size: 1rem;
+    padding: 0.5rem;
+    border: 2px solid #888;
+    border-radius: 0.25rem;
+    background: #fff;
+    color: #000;
+    min-width: 0;
+}
+input:focus {
+    outline: none;
+    border-color: #f80;
+}
+.button-row {
+    grid-column: 1 / -1;
+    display: flex;
+    justify-content: flex-end;
+    margin-top: 0.5rem;
+}
+button {
+    font: inherit;
+    font-size: 1rem;
+    padding: 0.5rem 1rem;
+    background: #146;
+    color: #fff;
+    border: none;
+    border-radius: 0.25rem;
+    cursor: pointer;
+}
+button:hover { background: #f80; }
+button:disabled {
+    background: #888;
+    cursor: not-allowed;
+}
+.error {
+    grid-column: 1 / -1;
+    color: #c00;
+    font-size: 0.875rem;
+    min-height: 1.2em;
+    margin: 0;
+}
+"""
+
+_LOGIN_PAGE_JS = """\
+const form = document.getElementById('loginForm');
+const error = document.getElementById('error');
+const submitBtn = document.getElementById('submitBtn');
+const usernameField = document.getElementById('username');
+const passwordField = document.getElementById('password');
+const isInIframe = window.parent !== window;
+
+// Focus username field on load
+usernameField.focus();
+
+const showError = (msg) => {
+    error.textContent = msg;
+    submitBtn.disabled = false;
+    submitBtn.textContent = 'Log in';
+    // Focus and select the relevant field
+    if (msg.toLowerCase().includes('password')) {
+        passwordField.focus();
+        passwordField.select();
+    } else {
+        usernameField.focus();
+        usernameField.select();
+    }
+};
+
+form.onsubmit = async (e) => {
+    e.preventDefault();
+    error.textContent = '';
+    submitBtn.disabled = true;
+    submitBtn.textContent = 'Logging in...';
+
+    try {
+        const res = await fetch('/auth/login', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+                'Accept': 'application/json'
+            },
+            body: JSON.stringify({
+                username: usernameField.value,
+                password: passwordField.value
+            })
+        });
+
+        if (res.ok) {
+            if (isInIframe) {
+                window.parent.postMessage({type: 'auth-success'}, '*');
+            } else {
+                window.location.href = '/';
+            }
+        } else {
+            const data = await res.json();
+            showError(data.message || data.detail || 'Login failed');
+        }
+    } catch (err) {
+        showError('Connection error. Please try again.');
+    }
+};
+"""
+
+# Import for SSO validation (lazily loaded to avoid circular imports)
+_sso_module = None
+
+
+def _get_sso():
+    global _sso_module
+    if _sso_module is None:
+        from cista import sso
+
+        _sso_module = sso
+    return _sso_module
+
 
 _argon = argon2.PasswordHasher()
 _droppyhash = re.compile(r"^([a-f0-9]{64})\$([a-f0-9]{8})$")
@@ -62,62 +231,106 @@ class LoginResponse(msgspec.Struct):
     error: str = ""
 
 
-def verify(request, *, privileged=False):
-    """Raise Unauthorized or Forbidden if the request is not authorized"""
-    if privileged:
-        if request.ctx.user:
-            if request.ctx.user.privileged:
-                return
-            raise Forbidden("Access Forbidden: Only for privileged users", quiet=True)
-    elif config.config.public or request.ctx.user:
+async def verify(request, *, privileged=False):
+    """Verify that the request is authorized.
+
+    For paskia mode (PASKIA_BACKEND_URL set), validates against the SSO backend.
+    For built-in mode, checks session-based authentication.
+    For public mode (config.public=True), skips auth unless privileged is required.
+
+    Args:
+        request: The Sanic request object
+        privileged: If True, requires admin privileges (always enforced even in public mode)
+
+    Raises:
+        Unauthorized: If authentication is required
+        Forbidden: If access is denied
+    """
+    # Public mode: skip auth unless privileged access is required
+    if config.config.public and not privileged:
         return
-    raise Unauthorized(f"Login required for {request.path}", "cookie", quiet=True)
 
+    sso = _get_sso()
+    if sso.paskia_enabled():
+        perm = "cista:admin" if privileged else "cista:login"
+        await sso.validate_sso_request(request, perm=perm)
+        return
 
-bp = Blueprint("auth")
-
-
-@bp.get("/login")
-async def login_page(request):
-    doc = Document("Cista Login")
-    with doc.div(id="login"):
-        with doc.form(method="POST", autocomplete="on"):
-            doc.h1("Login")
-            doc.input(
-                name="username",
-                placeholder="Username",
-                autocomplete="username",
-                required=True,
-            ).br
-            doc.input(
-                type="password",
-                name="password",
-                placeholder="Password",
-                autocomplete="current-password",
-                required=True,
-            ).br
-            doc.input(type="submit", value="Login")
-        s = session.get(request)
-        if s:
-            name = s["username"]
-            with doc.form(method="POST", action="/logout"):
-                doc.input(type="submit", value=f"Logout {name}")
-    flash = request.cookies.message
-    if flash:
-        doc.dialog(
-            flash,
-            id="flash",
-            open=True,
-            style="position: fixed; top: 0; left: 0; width: 100%; opacity: .8",
+    user = getattr(request.ctx, "user", None)
+    if privileged:
+        if user and user.privileged:
+            return
+        raise Forbidden(
+            "Access Forbidden: Only for privileged users",
+            quiet=True,
         )
+    if user:
+        return
+    raise Unauthorized(
+        f"Login required for {request.path}",
+        "cookie",
+        context={"auth": {"iframe": "/auth/restricted"}},
+        quiet=True,
+    )
+
+
+# Blueprint for built-in auth (only registered when paskia is NOT enabled)
+bp = Blueprint("auth", url_prefix="/auth")
+
+
+@bp.get("/restricted")
+async def login_page(request):
+    """Login page that works both standalone and in paskia iframe."""
+    s = session.get(request)
+
+    # Check if already logged in
+    if s:
+        # Already authenticated - signal success if in iframe
+        return html(_login_success_page(s["username"]))
+
+    doc = Document("Cista - Login")
+    # Add paskia-compatible styling and scripts
+    doc.style(_LOGIN_PAGE_CSS)
+    with doc.div(class_="login-card"):
+        doc.h1("Authentication Required")
+        with doc.div(class_="content"):
+            with doc.form(method="POST", id="loginForm", autocomplete="on"):
+                doc.label("Username:", for_="username")
+                doc.input(
+                    type="text",
+                    id="username",
+                    name="username",
+                    autocomplete="username webauthn",
+                    required=True,
+                )
+                doc.label("Password:", for_="password")
+                doc.input(
+                    type="password",
+                    id="password",
+                    name="password",
+                    autocomplete="current-password webauthn",
+                    required=True,
+                )
+                with doc.div(class_="button-row"):
+                    doc.button("Log in", type="submit", id="submitBtn")
+                doc.p("", class_="error", id="error")
+
+    # JavaScript for AJAX login and postMessage communication
+    doc.script_(_LOGIN_PAGE_JS)
+
     res = html(doc)
-    if flash:
-        res.cookies.delete_cookie("flash")
     if s is False:
         session.delete(res)
     return res
 
 
+def _login_success_page(username: str) -> str:
+    """Minimal page that signals auth-success to parent iframe."""
+    return str(
+        Document().script_("window.parent.postMessage({type:'auth-success'},'*')")
+    )
+
+
 @bp.post("/login")
 async def login_post(request):
     try:
@@ -148,7 +361,7 @@ async def login_post(request):
     return res
 
 
-@bp.post("/logout")
+@bp.post("/api/logout")
 async def logout_post(request):
     s = request.ctx.session
     msg = "Logged out" if s else "Not logged in"
@@ -191,3 +404,92 @@ async def change_password(request):
         res = json({"message": "Password updated"})
     session.create(res, username)
     return res
+
+
+@bp.get("/users")
+async def list_users(request):
+    await verify(request, privileged=True)
+    users = []
+    for name, user in config.config.users.items():
+        users.append(
+            {
+                "username": name,
+                "privileged": user.privileged,
+                "lastSeen": user.lastSeen,
+            }
+        )
+    return json({"users": users})
+
+
+@bp.post("/users")
+async def create_user(request):
+    await verify(request, privileged=True)
+    try:
+        if request.headers.content_type == "application/json":
+            username = request.json["username"]
+            password = request.json.get("password")
+            privileged = request.json.get("privileged", False)
+        else:
+            username = request.form["username"][0]
+            password = request.form.get("password", [None])[0]
+            privileged = request.form.get("privileged", ["false"])[0].lower() == "true"
+        if not username or not username.isidentifier():
+            raise ValueError("Invalid username")
+    except (KeyError, ValueError) as e:
+        raise BadRequest(str(e)) from e
+    if username in config.config.users:
+        raise BadRequest("User already exists")
+    if not password:
+        password = pwgen.generate()
+    changes = {"privileged": privileged}
+    changes["hash"] = _argon.hash(_pwnorm(password))
+    try:
+        config.update_user(username, changes)
+    except Exception as e:
+        raise BadRequest(str(e)) from e
+    return json({"message": f"User {username} created", "password": password})
+
+
+@bp.put("/users/<username>")
+async def update_user(request, username):
+    await verify(request, privileged=True)
+    try:
+        if request.headers.content_type == "application/json":
+            changes = request.json
+        else:
+            changes = {}
+            if "password" in request.form:
+                changes["password"] = request.form["password"][0]
+            if "privileged" in request.form:
+                changes["privileged"] = request.form["privileged"][0].lower() == "true"
+    except KeyError as e:
+        raise BadRequest("Missing fields") from e
+    password_response = None
+    if "password" in changes:
+        if changes["password"] == "":
+            changes["password"] = pwgen.generate()
+        password_response = changes["password"]
+        changes["hash"] = _argon.hash(_pwnorm(changes["password"]))
+        del changes["password"]
+    if not changes:
+        return json({"message": "No changes"})
+    try:
+        config.update_user(username, changes)
+    except Exception as e:
+        raise BadRequest(str(e)) from e
+    response = {"message": f"User {username} updated"}
+    if password_response:
+        response["password"] = password_response
+    return json(response)
+
+
+@bp.delete("/users/<username>")
+async def delete_user(request, username):
+    await verify(request, privileged=True)
+    if username not in config.config.users:
+        raise BadRequest("User does not exist")
+    try:
+        config.del_user(username)
+    except Exception as e:
+        raise BadRequest(str(e)) from e
+    return json({"message": f"User {username} deleted"})

cista/config.py

@@ -7,9 +7,11 @@ from contextlib import suppress
 from functools import wraps
 from hashlib import sha256
 from pathlib import Path, PurePath
-from time import time
+from time import sleep, time
+from typing import Callable, Concatenate, Literal, ParamSpec
 
 import msgspec
+import msgspec.toml
 
 
 class Config(msgspec.Struct):
@@ -22,6 +24,13 @@ class Config(msgspec.Struct):
     links: dict[str, Link] = {}
 
 
+# Typing: arguments for config-modifying functions
+P = ParamSpec("P")
+ResultStr = Literal["modified", "created", "read"]
+RawModifyFunc = Callable[Concatenate[Config, P], Config]
+ModifyPublic = Callable[P, ResultStr]
+
+
 class User(msgspec.Struct, omit_defaults=True):
     privileged: bool = False
     hash: str = ""
@@ -34,11 +43,13 @@ class Link(msgspec.Struct, omit_defaults=True):
     expires: int = 0
 
 
-config = None
-conffile = None
+# Global variables - initialized during application startup
+config: Config
+conffile: Path
 
 
-def init_confdir():
+def init_confdir() -> None:
+    global conffile
     if p := os.environ.get("CISTA_HOME"):
         home = Path(p)
     else:
@@ -49,8 +60,6 @@ def init_confdir():
     if not home.is_dir():
         home.mkdir(parents=True, exist_ok=True)
         home.chmod(0o700)
-
-    global conffile
     conffile = home / "db.toml"
 
 
@@ -77,10 +86,10 @@ def dec_hook(typ, obj):
     raise TypeError
 
 
-def config_update(modify):
+def config_update(
+    modify: RawModifyFunc,
+) -> ResultStr | Literal["collision"]:
     global config
-    if conffile is None:
-        init_confdir()
     tmpname = conffile.with_suffix(".tmp")
     try:
         f = tmpname.open("xb")
@@ -95,7 +104,7 @@ def config_update(modify):
             c = msgspec.toml.decode(old, type=Config, dec_hook=dec_hook)
         except FileNotFoundError:
             old = b""
-            c = None
+            c = Config(path=Path(), listen="", secret=secrets.token_hex(12))
         c = modify(c)
         new = msgspec.toml.encode(c, enc_hook=enc_hook)
         if old == new:
@@ -118,17 +127,23 @@ def config_update(modify):
     return "modified" if old else "created"
 
 
-def modifies_config(modify):
-    """Decorator for functions that modify the config file"""
+def modifies_config(
+    modify: Callable[Concatenate[Config, P], Config],
+) -> Callable[P, ResultStr]:
+    """Decorator for functions that modify the config file
+
+    The decorated function takes as first arg Config and returns it modified.
+    The wrapper handles atomic modification and returns a string indicating the result.
+    """
 
     @wraps(modify)
-    def wrapper(*args, **kwargs):
-        def m(c):
+    def wrapper(*args: P.args, **kwargs: P.kwargs) -> ResultStr:
+        def m(c: Config) -> Config:
             return modify(c, *args, **kwargs)
 
         # Retry modification in case of write collision
         while (c := config_update(m)) == "collision":
-            time.sleep(0.01)
+            sleep(0.01)
         return c
 
     return wrapper
@@ -136,16 +151,23 @@ def modifies_config(modify):
 
 def load_config():
     global config
-    if conffile is None:
-        init_confdir()
-    config = msgspec.toml.decode(conffile.read_bytes(), type=Config, dec_hook=dec_hook)
+    init_confdir()
+    raw = conffile.read_bytes()
+    config = msgspec.toml.decode(raw, type=Config, dec_hook=dec_hook)
+    # Migrate from old authentication field if present
+    raw_dict = msgspec.toml.decode(raw)
+    if "authentication" in raw_dict and "public" not in raw_dict:
+        # Old config with authentication mode: migrate to public bool
+        new_public = raw_dict["authentication"] == "none"
+        config = msgspec.structs.replace(config, public=new_public)
+        update_config({})  # Save the migrated config
 
 
 @modifies_config
 def update_config(conf: Config, changes: dict) -> Config:
     """Create/update the config with new values, respecting changes done by others."""
     # Encode into dict, update values with new, convert to Config
-    settings = {} if conf is None else msgspec.to_builtins(conf, enc_hook=enc_hook)
+    settings = msgspec.to_builtins(conf, enc_hook=enc_hook)
     settings.update(changes)
     return msgspec.convert(settings, Config, dec_hook=dec_hook)
 
@@ -155,8 +177,13 @@ def update_user(conf: Config, name: str, changes: dict) -> Config:
     """Create/update a user with new values, respecting changes done by others."""
     # Encode into dict, update values with new, convert to Config
     try:
-        u = conf.users[name].__copy__()
-    except (KeyError, AttributeError):
+        # Copy user by converting to dict and back
+        u = msgspec.convert(
+            msgspec.to_builtins(conf.users[name], enc_hook=enc_hook),
+            User,
+            dec_hook=dec_hook,
+        )
+    except KeyError:
         u = User()
     if "password" in changes:
         from . import auth
@@ -165,7 +192,7 @@ def update_user(conf: Config, name: str, changes: dict) -> Config:
         del changes["password"]
     udict = msgspec.to_builtins(u, enc_hook=enc_hook)
     udict.update(changes)
-    settings = msgspec.to_builtins(conf, enc_hook=enc_hook) if conf else {"users": {}}
+    settings = msgspec.to_builtins(conf, enc_hook=enc_hook)
     settings["users"][name] = msgspec.convert(udict, User, dec_hook=dec_hook)
     return msgspec.convert(settings, Config, dec_hook=dec_hook)
 
@@ -173,6 +200,7 @@ def update_user(conf: Config, name: str, changes: dict) -> Config:
 @modifies_config
 def del_user(conf: Config, name: str) -> Config:
     """Delete named user account."""
-    ret = conf.__copy__()
-    ret.users.pop(name)
-    return ret
+    # Create a copy by converting to dict and back
+    settings = msgspec.to_builtins(conf, enc_hook=enc_hook)
+    settings["users"].pop(name)
+    return msgspec.convert(settings, Config, dec_hook=dec_hook)

cista/preview.py

@@ -13,11 +13,11 @@ import fitz  # PyMuPDF
 import numpy as np
 import pillow_heif
 from PIL import Image
-from sanic import Blueprint, empty, raw
+from sanic import Blueprint, empty, raw, redirect
 from sanic.exceptions import NotFound
 from sanic.log import logger
 
-from cista import config
+from cista import auth, config
 from cista.util.filename import sanitize
 
 pillow_heif.register_heif_opener()
@@ -25,6 +25,24 @@ pillow_heif.register_heif_opener()
 bp = Blueprint("preview", url_prefix="/preview")
 
 
+@bp.on_request
+async def verify_preview(request):
+    """Verify access to preview routes."""
+    await auth.verify(request)
+
+
+# Map EXIF Orientation value to a corresponding PIL transpose
+EXIF_ORI = {
+    2: Image.Transpose.FLIP_LEFT_RIGHT,
+    3: Image.Transpose.ROTATE_180,
+    4: Image.Transpose.FLIP_TOP_BOTTOM,
+    5: Image.Transpose.TRANSPOSE,
+    6: Image.Transpose.ROTATE_270,
+    7: Image.Transpose.TRANSVERSE,
+    8: Image.Transpose.ROTATE_90,
+}
+
+
 @bp.get("/<path:path>")
 async def preview(req, path):
     """Preview a file"""
@@ -32,12 +50,12 @@ async def preview(req, path):
     maxzoom = float(req.args.get("zoom", 2.0))
     quality = int(req.args.get("q", 60))
     rel = PurePosixPath(sanitize(unquote(path)))
-    path = config.config.path / rel
-    stat = path.lstat()
+    filepath = config.config.path / rel
+    stat = filepath.lstat()
     etag = config.derived_secret(
         "preview", rel, stat.st_mtime_ns, quality, maxsize, maxzoom
     ).hex()
-    savename = PurePosixPath(path.name).with_suffix(".avif")
+    savename = PurePosixPath(filepath.name).with_suffix(".avif")
     headers = {
         "etag": etag,
         "last-modified": format_date_time(stat.st_mtime),
@@ -50,53 +68,62 @@ async def preview(req, path):
         # The client has it cached, respond 304 Not Modified
         return empty(304, headers=headers)
 
-    if not path.is_file():
+    if not filepath.is_file():
         raise NotFound("File not found")
 
     img = await asyncio.get_event_loop().run_in_executor(
-        req.app.ctx.threadexec, dispatch, path, quality, maxsize, maxzoom
+        req.app.ctx.threadexec, dispatch, filepath, quality, maxsize, maxzoom
     )
+    if not img:
+        # Preview generation failed, redirect to the file itself
+        return redirect(f"/files/{path}", status=303)
     return raw(img, headers=headers)
 
 
 def dispatch(path, quality, maxsize, maxzoom):
-    if path.suffix.lower() in (".pdf", ".xps", ".epub", ".mobi"):
-        return process_pdf(path, quality=quality, maxsize=maxsize, maxzoom=maxzoom)
-    type, _ = mimetypes.guess_type(path.name)
-    if type and type.startswith("video/"):
-        return process_video(path, quality=quality, maxsize=maxsize)
-    return process_image(path, quality=quality, maxsize=maxsize)
+    try:
+        if path.suffix.lower() in (".pdf", ".xps", ".epub", ".mobi"):
+            return process_pdf(path, quality=quality, maxsize=maxsize, maxzoom=maxzoom)
+        type, _ = mimetypes.guess_type(path.name)
+        if type and type.startswith("video/"):
+            return process_video(path, quality=quality, maxsize=maxsize)
+        return process_image(path, quality=quality, maxsize=maxsize)
+    except ValueError as e:
+        logger.warning(f"Cannot generate preview for {path}: {e}")
+    except Exception as e:
+        logger.exception(f"Error generating preview for {path}: {e}")
 
 
 def process_image(path, *, maxsize, quality):
-    t_load_start = perf_counter()
-    img = Image.open(path)
-    # Force decode to include I/O in load timing
-    img.load()
-    t_load_end = perf_counter()
-    # Resize
-    orig_w, orig_h = img.size
-    t_proc_start = perf_counter()
-    img.thumbnail((min(orig_w, maxsize), min(orig_h, maxsize)))
-    t_proc_end = perf_counter()
-    # Save as AVIF
-    imgdata = io.BytesIO()
-    t_save_start = perf_counter()
-    img.save(imgdata, format="avif", quality=quality, speed=10, max_threads=1)
-    t_save_end = perf_counter()
+    t_load = perf_counter()
+    with Image.open(path) as img:
+        # Force decode to include I/O in load timing
+        img.load()
+        t_proc = perf_counter()
+        # Resize
+        w, h = img.size
+        img.thumbnail((min(w, maxsize), min(h, maxsize)))
+        # Transpose pixels according to EXIF Orientation
+        orientation = img.getexif().get(274, 1)
+        if orientation in EXIF_ORI:
+            img = img.transpose(EXIF_ORI[orientation])
+        # Save as AVIF
+        imgdata = io.BytesIO()
+        t_save = perf_counter()
+        img.save(imgdata, format="avif", quality=quality, speed=10, max_threads=1)
 
+    t_end = perf_counter()
     ret = imgdata.getvalue()
 
-    load_ms = (t_load_end - t_load_start) * 1000
-    proc_ms = (t_proc_end - t_proc_start) * 1000
-    save_ms = (t_save_end - t_save_start) * 1000
+    load_ms = (t_proc - t_load) * 1000
+    proc_ms = (t_save - t_proc) * 1000
+    save_ms = (t_end - t_save) * 1000
     logger.debug(
-        "Preview image %s: load=%.1fms process=%.1fms save=%.1fms out=%.1fKB",
+        "Preview image %s: load=%.1fms process=%.1fms save=%.1fms",
         path.name,
         load_ms,
         proc_ms,
         save_ms,
-        len(ret) / 1024,
     )
 
     return ret
@@ -109,7 +136,7 @@ def process_pdf(path, *, maxsize, maxzoom, quality, page_number=0):
     w, h = page.rect[2:4]
     zoom = min(maxsize / w, maxsize / h, maxzoom)
     mat = fitz.Matrix(zoom, zoom)
-    pix = page.get_pixmap(matrix=mat)  # type: ignore[attr-defined]
+    pix = page.get_pixmap(matrix=mat)
     t_load_end = perf_counter()
 
     t_save_start = perf_counter()
@@ -154,35 +181,49 @@ def process_video(path, *, maxsize, quality):
             new_height = int(frame.height * scale_factor)
             frame = frame.reformat(width=new_width, height=new_height)
 
-        # Simple rotation detection and logging
+        # Apply EXIF rotation if present
         if frame.rotation:
-            try:
-                fplanes = frame.to_ndarray()
-                # Split into Y, U, V planes of proper dimensions
-                planes = [
-                    fplanes[: frame.height],
-                    fplanes[frame.height : frame.height + frame.height // 4].reshape(
-                        frame.height // 2, frame.width // 2
-                    ),
-                    fplanes[frame.height + frame.height // 4 :].reshape(
-                        frame.height // 2, frame.width // 2
-                    ),
-                ]
-                # Rotate
-                planes = [np.rot90(p, frame.rotation // 90) for p in planes]
-                # Restore PyAV format
-                planes = np.hstack([p.flat for p in planes]).reshape(
-                    -1, planes[0].shape[1]
-                )
-                frame = av.VideoFrame.from_ndarray(planes, format=frame.format.name)
-                del planes, fplanes
-            except Exception as e:
-                if "not yet supported" in str(e):
-                    logger.warning(
-                        f"Not rotating {path.name} preview image by {frame.rotation}°:\n  PyAV: {e}"
+            # frame.rotation indicates clockwise rotation needed to display correctly
+            # np.rot90 rotates counter-clockwise, so we negate k
+            k = (frame.rotation // 90) % 4  # Convert to counter-clockwise rotations
+            if k == 2:
+                # 180° rotation can be done in YUV420p, preserving HDR
+                try:
+                    fplanes = frame.to_ndarray()
+                    # Split into Y, U, V planes of proper dimensions
+                    planes = [
+                        fplanes[: frame.height],
+                        fplanes[
+                            frame.height : frame.height + frame.height // 4
+                        ].reshape(frame.height // 2, frame.width // 2),
+                        fplanes[frame.height + frame.height // 4 :].reshape(
+                            frame.height // 2, frame.width // 2
+                        ),
+                    ]
+                    # Rotate each plane by 180°
+                    planes = [np.rot90(p, 2) for p in planes]
+                    # Restore PyAV format
+                    planes = np.hstack([p.flat for p in planes]).reshape(
+                        -1, planes[0].shape[1]
+                    )
+                    frame = av.VideoFrame.from_ndarray(planes, format=frame.format.name)
+                    del planes, fplanes
+                except Exception as e:
+                    logger.exception(f"Error rotating video frame by 180°: {e}")
+            elif k in (1, 3):
+                # 90° or 270° rotation requires RGB conversion (loses HDR)
+                try:
+                    rgb = frame.to_ndarray(format="rgb24")
+                    rgb = np.rot90(rgb, k)
+                    frame = av.VideoFrame.from_ndarray(rgb, format="rgb24")
+                    frame = frame.reformat(
+                        format="yuv420p"
+                    )  # Convert back for encoding
+                    del rgb
+                except Exception as e:
+                    logger.exception(
+                        f"Error rotating video frame by {frame.rotation}°: {e}"
                     )
-                else:
-                    logger.exception(f"Error rotating video frame: {e}")
         t_load_end = perf_counter()
 
         t_save_start = perf_counter()
@@ -199,6 +240,7 @@ def process_video(path, *, maxsize, quality):
         assert isinstance(ostream, av.VideoStream)
         ostream.width = frame.width
         ostream.height = frame.height
+        ostream.pix_fmt = frame.format.name
         icc = istream.codec_context
         occ = ostream.codec_context
 

cista/protocol.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import shutil
+from pathlib import PurePosixPath
 from typing import Any
 
 import msgspec
@@ -16,6 +17,10 @@ class ControlBase(msgspec.Struct, tag_field="op", tag=str.lower):
     def __call__(self):
         raise NotImplementedError
 
+    def affected_paths(self) -> list[str]:
+        """Return list of paths affected by this operation for change notification."""
+        return []
+
 
 class MkDir(ControlBase):
     path: str
@@ -24,6 +29,9 @@ class MkDir(ControlBase):
         path = config.config.path / filename.sanitize(self.path)
         path.mkdir(parents=True, exist_ok=False)
 
+    def affected_paths(self) -> list[str]:
+        return [filename.sanitize(self.path)]
+
 
 class Rename(ControlBase):
     path: str
@@ -36,6 +44,11 @@ class Rename(ControlBase):
         path = config.config.path / filename.sanitize(self.path)
         path.rename(path.with_name(to))
 
+    def affected_paths(self) -> list[str]:
+        sanitized = filename.sanitize(self.path)
+        new_path = str(PurePosixPath(sanitized).with_name(filename.sanitize(self.to)))
+        return [sanitized, new_path]
+
 
 class Rm(ControlBase):
     sel: list[str]
@@ -49,6 +62,9 @@ class Rm(ControlBase):
             else:
                 p.unlink()
 
+    def affected_paths(self) -> list[str]:
+        return [filename.sanitize(p) for p in self.sel]
+
 
 class Mv(ControlBase):
     sel: list[str]
@@ -63,6 +79,13 @@ class Mv(ControlBase):
         for p in sel:
             shutil.move(p, dst)
 
+    def affected_paths(self) -> list[str]:
+        dst = filename.sanitize(self.dst)
+        paths = [filename.sanitize(p) for p in self.sel]
+        # Include new locations in dst
+        paths.extend(f"{dst}/{PurePosixPath(p).name}" for p in self.sel)
+        return paths
+
 
 class Cp(ControlBase):
     sel: list[str]
@@ -86,6 +109,11 @@ class Cp(ControlBase):
             else:
                 shutil.copy2(p, dst)
 
+    def affected_paths(self) -> list[str]:
+        dst = filename.sanitize(self.dst)
+        # Only destinations are new (sources unchanged)
+        return [f"{dst}/{PurePosixPath(filename.sanitize(p)).name}" for p in self.sel]
+
 
 ControlTypes = MkDir | Rename | Rm | Mv | Cp
 

cista/serve.py

@@ -1,8 +1,8 @@
 import os
 import re
-import signal
 from pathlib import Path
 
+from fastapi_vue.hostutil import parse_endpoint
 from sanic import Sanic
 
 from cista import config, server80
@@ -12,14 +12,6 @@ def run(*, dev=False):
     """Run Sanic main process that spawns worker processes to serve HTTP requests."""
     from .app import app
 
-    # Set up immediate exit on Ctrl+C for faster termination
-    def signal_handler(signum, frame):
-        print("\nReceived interrupt signal, exiting immediately...")
-        os._exit(0)
-
-    signal.signal(signal.SIGINT, signal_handler)
-    signal.signal(signal.SIGTERM, signal_handler)
-
     url, opts = parse_listen(config.config.listen)
     # Silence Sanic's warning about running in production rather than debug
     os.environ["SANIC_IGNORE_PRODUCTION_WARNING"] = "1"
@@ -53,18 +45,28 @@ def check_cert(certdir, domain):
 
 
 def parse_listen(listen):
-    if listen.startswith("/"):
-        unix = Path(listen).resolve()
+    # Domain name (e.g. example.com) -> HTTPS with LetsEncrypt
+    if re.fullmatch(r"(\w+(-\w+)*\.)+\w{2,}", listen, re.UNICODE):
+        return f"https://{listen}", {"host": listen, "port": 443, "ssl": True}
+
+    # Use fastapi_vue's parse_endpoint for everything else
+    endpoints = parse_endpoint(listen, default_port=8989)
+    ep = endpoints[0]
+
+    if "uds" in ep:
+        unix = Path(ep["uds"]).resolve()
         if not unix.parent.exists():
             raise ValueError(
                 f"Directory for unix socket does not exist: {unix.parent}/",
             )
         return "http://localhost", {"unix": unix.as_posix()}
-    if re.fullmatch(r"(\w+(-\w+)*\.)+\w{2,}", listen, re.UNICODE):
-        return f"https://{listen}", {"host": listen, "port": 443, "ssl": True}
-    try:
-        addr, _port = listen.split(":", 1)
-        port = int(_port)
-    except Exception:
-        raise ValueError(f"Invalid listen address: {listen}") from None
-    return f"http://localhost:{port}", {"host": addr, "port": port}
+
+    host, port = ep["host"], ep["port"]
+    # When binding all interfaces, use single_listener=False for Sanic
+    if len(endpoints) > 1:
+        return f"http://localhost:{port}", {
+            "host": host,
+            "port": port,
+            "single_listener": False,
+        }
+    return f"http://{host}:{port}", {"host": host, "port": port}

cista/sso.py

@@ -0,0 +1,324 @@
+"""SSO (paskia) authentication proxy and validation module.
+
+When paskia mode is enabled (PASKIA_BACKEND_URL is set):
+- Backend validates requests against PASKIA_BACKEND_URL/auth/api/validate?perm=cista:login
+- All /auth/* requests are proxied to the paskia backend
+
+Environment variables:
+  PASKIA_BACKEND_URL - URL of the paskia auth server (e.g., http://localhost:4401)
+                       Must include scheme (http/https), no trailing slash
+"""
+
+import asyncio
+import os
+import re
+
+import httpx
+import websockets
+from sanic import Blueprint
+from sanic.exceptions import Forbidden, SanicException, Unauthorized
+from sanic.log import logger
+
+# Auth backend URL for SSO validation (from env, no trailing slash)
+_raw_url = os.environ.get("PASKIA_BACKEND_URL", "").rstrip("/")
+
+# Validate and set PASKIA_BACKEND_URL
+if _raw_url:
+    if not re.match(r"^https?://[^\s/]+$", _raw_url):
+        raise ValueError(
+            f"Invalid PASKIA_BACKEND_URL: {_raw_url!r} - "
+            "must be http(s)://host[:port] with no path or trailing slash"
+        )
+    PASKIA_BACKEND_URL = _raw_url
+else:
+    PASKIA_BACKEND_URL = ""
+
+
+def paskia_enabled() -> bool:
+    """Check if paskia SSO mode is enabled (PASKIA_BACKEND_URL is set)."""
+    return bool(PASKIA_BACKEND_URL)
+
+
+# Shared httpx client for SSO requests (reused for connection pooling)
+_client: httpx.AsyncClient | None = None
+
+
+async def get_client() -> httpx.AsyncClient:
+    """Get or create the shared httpx client."""
+    global _client
+    if _client is None or _client.is_closed:
+        _client = httpx.AsyncClient(timeout=1.0)
+    return _client
+
+
+async def close_client():
+    """Close the shared httpx client."""
+    global _client
+    if _client is not None and not _client.is_closed:
+        await _client.aclose()
+        _client = None
+
+
+async def validate_sso_request(request, *, perm: str = "cista:login") -> dict | None:
+    """Validate an SSO request against the auth backend.
+
+    Args:
+        request: The Sanic request object
+        perm: Permission to validate (default: cista:login, privileged also cista:admin)
+
+    Returns:
+        User info dict if valid, None if validation fails with auth required response
+
+    Raises:
+        Forbidden: If access is denied (403)
+        Unauthorized: If authentication is required (401)
+    """
+    if not paskia_enabled():
+        return None
+
+    client = await get_client()
+
+    headers = {}
+    if "host" in request.headers:
+        headers["host"] = request.headers["host"]
+    if "cookie" in request.headers:
+        headers["cookie"] = request.headers["cookie"]
+    if "authorization" in request.headers:
+        headers["authorization"] = request.headers["authorization"]
+    headers["accept"] = "application/json"
+    headers["x-forwarded-for"] = request.client_ip
+    headers["x-forwarded-host"] = request.host
+    headers["x-forwarded-proto"] = request.scheme
+
+    url = f"{PASKIA_BACKEND_URL}/auth/api/validate?perm={perm}"
+
+    try:
+        response = await client.post(
+            url,
+            headers=headers,
+        )
+
+        if response.status_code == 200:
+            try:
+                data = response.json()
+                request.ctx.sso_user = data
+                if "set-cookie" in response.headers:
+                    request.ctx.sso_cookies = response.headers.get_list("set-cookie")
+                return data
+            except Exception:
+                request.ctx.sso_user = {}
+                return {}
+
+        try:
+            error_data = response.json()
+        except Exception:
+            error_data = {"detail": response.text or "Authentication error"}
+
+        if response.status_code == 401:
+            if "auth" in error_data and "iframe" in error_data["auth"]:
+                error_data["auth"]["iframe"] += "&theme=light"
+            raise Unauthorized(
+                error_data.get("detail", "Authentication required"),
+                "cookie",
+                context=error_data,
+                quiet=True,
+            )
+        elif response.status_code == 403:
+            raise Forbidden(
+                error_data.get("detail", "Access denied"),
+                context=error_data,
+                quiet=True,
+            )
+        else:
+            detail = error_data.get("detail", "")
+            logger.warning(
+                f"SSO validation {url} returned {response.status_code}: {detail}"
+            )
+            raise Forbidden(
+                detail or "Authentication error",
+                context=error_data,
+                quiet=True,
+            )
+
+    except httpx.RequestError as e:
+        logger.error(f"SSO validation {url} network error: {e}")
+        raise SanicException(
+            "Authentication service unavailable",
+            status_code=502,
+            quiet=True,
+        )
+
+
+async def proxy_auth_request(request):
+    """Proxy a request to the auth backend.
+
+    All requests under /auth/ are proxied when paskia mode is enabled.
+    """
+    client = await get_client()
+
+    path = request.path
+    query_string = request.query_string
+    url = f"{PASKIA_BACKEND_URL}{path}"
+    if query_string:
+        url = f"{url}?{query_string}"
+
+    skip_headers = {
+        "connection",
+        "keep-alive",
+        "transfer-encoding",
+        "te",
+        "trailer",
+        "upgrade",
+        "proxy-authorization",
+        "proxy-authenticate",
+        "forwarded",
+        "x-forwarded-for",
+        "x-forwarded-host",
+        "x-forwarded-proto",
+    }
+
+    headers = [
+        (key, value)
+        for key, value in request.headers.items()
+        if key.lower() not in skip_headers
+    ]
+    headers.append(("x-forwarded-for", request.client_ip))
+    headers.append(("x-forwarded-host", request.host))
+    headers.append(("x-forwarded-proto", request.scheme))
+
+    try:
+        async with client.stream(
+            method=request.method,
+            url=url,
+            headers=headers,
+            content=request.body if request.body else None,
+        ) as response:
+            raw_content = b"".join([chunk async for chunk in response.aiter_raw()])
+
+            resp_hop_by_hop = {
+                "connection",
+                "keep-alive",
+                "transfer-encoding",
+                "te",
+                "trailer",
+                "upgrade",
+            }
+
+            resp_headers = [
+                (key, value)
+                for key, value in response.headers.multi_items()
+                if key.lower() not in resp_hop_by_hop
+            ]
+
+            from sanic import raw as raw_response
+
+            return raw_response(
+                raw_content,
+                status=response.status_code,
+                headers=resp_headers,
+                content_type=response.headers.get("content-type", "application/json"),
+            )
+
+    except httpx.RequestError as e:
+        logger.error(f"Auth proxy request failed: {e}")
+        from sanic import json
+
+        return json(
+            {"detail": "Authentication service unavailable", "error": str(e)},
+            status=503,
+        )
+
+
+async def proxy_auth_websocket(request, ws):
+    """Proxy a WebSocket connection to the auth backend."""
+    path = request.path
+    query_string = request.query_string
+    ws_backend = PASKIA_BACKEND_URL.replace("http://", "ws://").replace(
+        "https://", "wss://"
+    )
+    url = f"{ws_backend}{path}"
+    if query_string:
+        url = f"{url}?{query_string}"
+
+    additional_headers = {}
+    if "cookie" in request.headers:
+        additional_headers["cookie"] = request.headers["cookie"]
+    if "authorization" in request.headers:
+        additional_headers["authorization"] = request.headers["authorization"]
+    if "origin" in request.headers:
+        additional_headers["origin"] = request.headers["origin"]
+    if "user-agent" in request.headers:
+        additional_headers["user-agent"] = request.headers["user-agent"]
+    additional_headers["x-forwarded-for"] = request.ip
+    additional_headers["x-forwarded-host"] = request.host
+    additional_headers["x-forwarded-proto"] = request.scheme
+
+    try:
+        async with websockets.connect(
+            url, additional_headers=additional_headers
+        ) as backend_ws:
+
+            async def forward_to_backend():
+                try:
+                    async for message in ws:
+                        await backend_ws.send(message)
+                except Exception:
+                    pass
+
+            async def forward_to_client():
+                try:
+                    async for message in backend_ws:
+                        await ws.send(message)
+                except Exception:
+                    pass
+
+            await asyncio.gather(
+                forward_to_backend(),
+                forward_to_client(),
+                return_exceptions=True,
+            )
+    except Exception as e:
+        logger.error(f"WebSocket proxy to {url} failed: {e}")
+
+
+def _is_websocket_request(request) -> bool:
+    """Check if the request is a WebSocket upgrade request."""
+    connection = request.headers.get("connection", "").lower()
+    upgrade = request.headers.get("upgrade", "").lower()
+    connection_tokens = [t.strip() for t in connection.split(",")]
+    return "upgrade" in connection_tokens and upgrade == "websocket"
+
+
+async def _handle_websocket_upgrade(request):
+    """Handle WebSocket upgrade and proxy the connection."""
+    protocol = request.transport.get_protocol()
+    ws = await protocol.websocket_handshake(request, subprotocols=None)
+    await proxy_auth_websocket(request, ws)
+
+
+# Blueprint for auth proxy routes (only registered when paskia_enabled())
+bp = Blueprint("sso", url_prefix="/auth")
+
+
+@bp.route(
+    "/<path:path>", methods=["GET", "POST", "PUT", "DELETE", "PATCH", "OPTIONS", "HEAD"]
+)
+async def auth_proxy(request, path=""):
+    """Proxy all auth requests to the auth backend."""
+    if _is_websocket_request(request):
+        await _handle_websocket_upgrade(request)
+        from sanic import empty
+
+        return empty()
+    return await proxy_auth_request(request)
+
+
+@bp.route("/", methods=["GET", "POST", "PUT", "DELETE", "PATCH", "OPTIONS", "HEAD"])
+async def auth_proxy_root(request):
+    """Proxy root auth requests to the auth backend."""
+    if _is_websocket_request(request):
+        await _handle_websocket_upgrade(request)
+        from sanic import empty
+
+        return empty()
+    return await proxy_auth_request(request)

cista/util/apphelpers.py

@@ -33,8 +33,11 @@ async def handle_sanic_exception(request, e):
         logger.exception(e)
     # Non-browsers get JSON errors
     if "text/html" not in request.headers.accept:
+        # Include auth context if present (for SSO auth required responses)
+        # Auth must be at top level for paskia library to detect it
+        response_data = {"code": code, "message": message, "detail": message, **context}
         return jres(
-            ErrorMsg({"code": code, "message": message, **context}),
+            response_data,
             status=code,
         )
     # Redirections flash the error message via cookies
@@ -52,7 +55,7 @@ def websocket_wrapper(handler):
     @wraps(handler)
     async def wrapper(request, ws, *args, **kwargs):
         try:
-            auth.verify(request)
+            await auth.verify(request)
             await handler(request, ws, *args, **kwargs)
         except Exception as e:
             context, code, message = {}, 500, str(e) or "Internal Server Error"

cista/util/lrucache.py

@@ -1,4 +1,5 @@
 from time import monotonic
+from typing import Callable
 
 
 class LRUCache:
@@ -12,7 +13,7 @@ class LRUCache:
         cache (list): Internal list storing the cache items.
     """
 
-    def __init__(self, open: callable, *, capacity: int, maxage: float):
+    def __init__(self, open: Callable, *, capacity: int, maxage: float):
         """
         Initialize LRUCache.
 
@@ -50,7 +51,6 @@ class LRUCache:
         # Add/restore to end of cache
         self.cache.insert(0, (key, f, monotonic()))
         self.expire_items()
-        print(self.cache)
         return f
 
     def expire_items(self):

cista/watching.py

@@ -1,4 +1,5 @@
 import asyncio
+import queue
 import shutil
 import sys
 import threading
@@ -116,6 +117,28 @@ state = State()
 rootpath: Path = None  # type: ignore
 quit = threading.Event()
 
+# Thread-safe queue for signaling path updates from websockets
+_update_queue: queue.Queue[PurePosixPath] = queue.Queue()
+
+
+def notify_change(*paths: PurePosixPath | str):
+    """Signal that paths have changed. Called from control/upload websockets."""
+    for path in paths:
+        if isinstance(path, str):
+            path = PurePosixPath(path)
+        # Convert absolute paths to relative (strip leading /)
+        if path.is_absolute():
+            path = (
+                PurePosixPath(*path.parts[1:])
+                if len(path.parts) > 1
+                else PurePosixPath()
+            )
+        # Skip root paths (empty, '.') to avoid full tree walks
+        if not path.parts or path.parts == (".",):
+            continue
+        _update_queue.put(path)
+
+
 ## Filesystem scanning
 
 
@@ -326,134 +349,380 @@ def format_root(root):
 
 
 def broadcast(msg, loop):
-    return asyncio.run_coroutine_threadsafe(abroadcast(msg), loop).result()
+    fut = asyncio.run_coroutine_threadsafe(abroadcast(msg), loop)
+    return fut.result()
 
 
 async def abroadcast(msg):
+    client_count = 0
     try:
         for queue in pubsub.values():
             queue.put_nowait(msg)
+            client_count += 1
     except Exception:
         # Log because asyncio would silently eat the error
         logger.exception("Broadcast error")
+    return client_count
 
 
 ## Watcher thread
 
 
-def watcher_inotify(loop):
-    """Inotify watcher thread (Linux only)"""
-    import inotify.adapters
+class PathIndex:
+    """O(1) path lookup index for the flat FileEntry tree."""
+
+    def __init__(self, root: list[FileEntry]):
+        self.root = root
+        self._index: dict[PurePosixPath, tuple[int, int]] = {}
+        self._rebuild()
+
+    def _rebuild(self):
+        """Build path -> (start_idx, count) mapping in single O(n) pass."""
+        index: dict[PurePosixPath, tuple[int, int]] = {}
+        path_stack: list[tuple[PurePosixPath, int]] = []  # (path, start_idx)
+
+        for i, entry in enumerate(self.root):
+            # Pop completed paths from stack
+            while path_stack and entry.level <= len(path_stack[-1][0].parts):
+                completed_path, start_idx = path_stack.pop()
+                index[completed_path] = (start_idx, i - start_idx)
+
+            # Build current path
+            if entry.level == 0:
+                current_path = PurePosixPath()
+            else:
+                parent = path_stack[-1][0] if path_stack else PurePosixPath()
+                current_path = parent / entry.name
+
+            path_stack.append((current_path, i))
+
+        # Close remaining paths
+        for path, start_idx in path_stack:
+            index[path] = (start_idx, len(self.root) - start_idx)
+
+        self._index = index
+
+    def get(self, path: PurePosixPath) -> tuple[int | None, list[FileEntry]]:
+        """O(1) lookup: returns (start_idx, entries) or (None, [])."""
+        if path not in self._index:
+            return None, []
+        start, count = self._index[path]
+        return start, self.root[start : start + count]
+
+    def find_insert_pos(self, path: PurePosixPath, isfile: int) -> int:
+        """Find insertion position using index + binary search."""
+        if not path.parts:
+            return 0
+
+        parent = path.parent
+        name = path.name
+
+        # Find parent's range
+        if parent == PurePosixPath():
+            # Insert at root level - scan root's direct children
+            start, count = 0, len(self.root)
+            target_level = 1
+        elif parent in self._index:
+            start, count = self._index[parent]
+            start += 1  # Skip parent entry itself
+            count -= 1
+            target_level = len(parent.parts) + 1
+        else:
+            # Parent doesn't exist, shouldn't happen
+            return len(self.root)
+
+        # Binary search among direct children at target_level
+        # Collect children indices first
+        children = []
+        i = start
+        end = start + count
+        while i < end:
+            entry = self.root[i]
+            if entry.level == target_level:
+                children.append(i)
+            i += 1
+
+        if not children:
+            return start
+
+        # Binary search for insertion point
+        nsort = sortkey(name)
+        lo, hi = 0, len(children)
+        while lo < hi:
+            mid = (lo + hi) // 2
+            idx = children[mid]
+            entry = self.root[idx]
+            ename = entry.name
+            esort = sortkey(ename)
+            # Compare: isfile, then sort key, then case-sensitive
+            cmp = (
+                entry.isfile - isfile
+                or (esort > nsort) - (esort < nsort)
+                or (ename > name) - (ename < name)
+            )
+            if cmp < 0:
+                lo = mid + 1
+            else:
+                hi = mid
+
+        if lo < len(children):
+            return children[lo]
+        elif children:
+            # Insert after last child's subtree
+            last_idx = children[-1]
+            last_entry = self.root[last_idx]
+            if last_entry.isfile:
+                return last_idx + 1
+            # Find end of last child's subtree
+            last_path = parent / last_entry.name
+            if last_path in self._index:
+                s, c = self._index[last_path]
+                return s + c
+            return last_idx + 1
+        return start
+
+    def apply_update(
+        self, path: PurePosixPath, new_entries: list[FileEntry]
+    ) -> list[FileEntry]:
+        """Apply an update and return the new root. Rebuilds index."""
+        start, old_entries = self.get(path)
+
+        if old_entries == new_entries:
+            return self.root
+
+        new_root = self.root[:]
+
+        if start is not None:
+            del new_root[start : start + len(old_entries)]
+
+        if new_entries:
+            # Rebuild index on modified list to find insert pos
+            self.root = new_root
+            self._rebuild()
+            insert_pos = self.find_insert_pos(path, new_entries[0].isfile)
+            new_root[insert_pos:insert_pos] = new_entries
+
+        self.root = new_root
+        self._rebuild()
+        return new_root
+
+
+def collapse_paths(paths: set[PurePosixPath]) -> set[PurePosixPath]:
+    """Remove child paths if parent is in set."""
+    if not paths:
+        return paths
+    # Filter out root paths (empty or '.') which would cause full tree walks
+    paths = {p for p in paths if p.parts and p.parts != (".",)}
+    if not paths:
+        return set()
+    # Sort by depth (fewest parts first)
+    sorted_paths = sorted(paths, key=lambda p: len(p.parts))
+    result = set()
+    for path in sorted_paths:
+        # Check if any ancestor is already in result
+        is_child = False
+        for i in range(len(path.parts)):
+            ancestor = PurePosixPath(*path.parts[:i]) if i > 0 else PurePosixPath()
+            if ancestor in result:
+                is_child = True
+                break
+        if not is_child:
+            result.add(path)
+    return result
+
+
+# Debounce settings
+DEBOUNCE_DELAY = 0.01  # Wait 10ms after last event
+DEBOUNCE_MAX = 0.1  # But no more than 100ms total
+
+
+def watcher(loop):
+    """Unified watcher thread handling inotify, websocket signals, and periodic scans."""
+    use_inotify = sys.platform == "linux"
+    inotify_tree = None
+    modified_flags = frozenset()
+
+    if use_inotify:
+        import inotify.adapters
+
+        modified_flags = frozenset(
+            (
+                "IN_CREATE",
+                "IN_DELETE",
+                "IN_DELETE_SELF",
+                "IN_MODIFY",
+                "IN_MOVE_SELF",
+                "IN_MOVED_FROM",
+                "IN_MOVED_TO",
+            )
+        )
 
-    modified_flags = (
-        "IN_CREATE",
-        "IN_DELETE",
-        "IN_DELETE_SELF",
-        "IN_MODIFY",
-        "IN_MOVE_SELF",
-        "IN_MOVED_FROM",
-        "IN_MOVED_TO",
-    )
     while not quit.is_set():
-        i = inotify.adapters.InotifyTree(rootpath.as_posix())
+        if use_inotify:
+            import inotify.adapters
+
+            inotify_tree = inotify.adapters.InotifyTree(rootpath.as_posix())
+
         # Initialize the tree from filesystem
         update_root(loop)
+        path_index = PathIndex(state.root[:])
+
         trefresh = time.monotonic() + 300.0
         tspace = time.monotonic() + 5.0
-        # Watch for changes (frequent wakeups needed for quiting)
-        while not quit.is_set():
-            t = time.monotonic()
-            # The watching is not entirely reliable, so do a full refresh every 30 seconds
-            if t >= trefresh:
-                break
-            # Disk usage update
-            if t >= tspace:
-                tspace = time.monotonic() + 5.0
-                update_space(loop)
-            # Inotify events, update the tree
-            dirty = False
-            rootmod = state.root[:]
-            for event in i.event_gen(yield_nones=False, timeout_s=0.1):
-                assert event
-                if quit.is_set():
-                    return
-                interesting = any(f in modified_flags for f in event[1])
-                if interesting:
-                    # Update modified path
-                    path = PurePosixPath(event[2]) / event[3]
-                    try:
-                        rel_path = path.relative_to(rootpath)
-                        update_path(rootmod, rel_path, loop)
-                    except Exception as e:
-                        logger.error(
-                            f"Error processing inotify event for path {path}: {e}"
-                        )
-                        raise
-                    if not dirty:
-                        t = time.monotonic()
-                        dirty = True
-                # Wait a maximum of 0.2s to push the updates
-                if dirty and time.monotonic() >= t + 0.2:
-                    break
-            if dirty and state.root != rootmod:
-                try:
-                    update = format_update(state.root, rootmod)
-                    with state.lock:
-                        broadcast(update, loop)
-                        state.root = rootmod
-                except Exception:
-                    logger.exception(
-                        "format_update failed; falling back to full rescan"
+
+        # Pending changes: path -> {"ws": count, "inotify": count}
+        dirty_paths: dict[PurePosixPath, dict[str, int]] = {}
+        first_event_time: float | None = None
+        last_event_time: float | None = None
+
+        def add_dirty(path: PurePosixPath, source: str) -> bool:
+            """Add path to dirty set. Returns True if added, False if redundant."""
+            nonlocal first_event_time, last_event_time
+            # Check if already covered by an existing dirty path
+            for existing in dirty_paths:
+                if path == existing or (
+                    len(path.parts) > len(existing.parts)
+                    and path.parts[: len(existing.parts)] == existing.parts
+                ):
+                    # Count the event even if skipped
+                    dirty_paths[existing][source] = (
+                        dirty_paths[existing].get(source, 0) + 1
                     )
-                    # Fallback: full rescan and try diff again; last resort send full root
+                    return False
+            # Remove any paths that would be covered by this new one
+            covered = {
+                p
+                for p in dirty_paths
+                if len(p.parts) > len(path.parts)
+                and p.parts[: len(path.parts)] == path.parts
+            }
+            # Aggregate counts from covered paths
+            counts: dict[str, int] = {source: 1}
+            for p in covered:
+                for s, c in dirty_paths[p].items():
+                    counts[s] = counts.get(s, 0) + c
+                del dirty_paths[p]
+            dirty_paths[path] = counts
+            now = time.monotonic()
+            if first_event_time is None:
+                first_event_time = now
+            last_event_time = now
+            return True
+
+        while not quit.is_set():
+            now = time.monotonic()
+
+            # Full refresh every 300s
+            if now >= trefresh:
+                break
+
+            # Disk usage update every 5s
+            if now >= tspace:
+                tspace = now + 5.0
+                update_space(loop)
+
+            # Check if we should flush pending changes
+            should_flush = False
+            if dirty_paths:
+                time_since_last = now - last_event_time if last_event_time else 0
+                time_since_first = now - first_event_time if first_event_time else 0
+                if (
+                    time_since_last >= DEBOUNCE_DELAY
+                    or time_since_first >= DEBOUNCE_MAX
+                ):
+                    should_flush = True
+
+            if should_flush:
+                paths_to_process = dirty_paths.copy()
+                dirty_paths.clear()
+                first_event_time = None
+                last_event_time = None
+
+                # Collapse paths (remove children if parent present)
+                collapsed = collapse_paths(set(paths_to_process.keys()))
+
+                # Process each collapsed path
+                new_root = path_index.root
+                for path in collapsed:
+                    new_entries = walk(path)
+                    new_root = path_index.apply_update(path, new_entries)
+
+                # Broadcast if changed
+                if new_root != state.root:
                     try:
-                        fresh = walk(PurePosixPath())
+                        update_msg = format_update(state.root, new_root)
+                        with state.lock:
+                            broadcast(update_msg, loop)
+                            state.root = new_root
+                    except Exception:
+                        logger.exception("format_update failed; full rescan")
                         try:
-                            update = format_update(state.root, fresh)
+                            fresh = walk(PurePosixPath())
+                            path_index = PathIndex(fresh)
+                            update_msg = format_update(state.root, fresh)
                             with state.lock:
-                                broadcast(update, loop)
+                                broadcast(update_msg, loop)
                                 state.root = fresh
                         except Exception:
-                            logger.exception(
-                                "Fallback diff failed; sending full root snapshot"
-                            )
+                            logger.exception("Fallback failed; sending full root")
                             with state.lock:
                                 broadcast(format_root(fresh), loop)
                                 state.root = fresh
-                    except Exception:
-                        logger.exception(
-                            "Full rescan failed; dropping this batch of updates"
-                        )
 
-        del i  # Free the inotify object
+            # Collect events from websocket signals (non-blocking)
+            try:
+                while True:
+                    path = _update_queue.get_nowait()
+                    add_dirty(path, "ws")
+            except queue.Empty:
+                pass
+
+            # Collect inotify events if available (short timeout for responsiveness)
+            if inotify_tree:
+                for event in inotify_tree.event_gen(yield_nones=False, timeout_s=0.05):
+                    if quit.is_set():
+                        return
+                    if not (modified_flags & set(event[1])):
+                        continue
+
+                    # Extract relative path
+                    path = PurePosixPath(event[2]) / event[3]
+                    try:
+                        rel_path = path.relative_to(rootpath)
+                    except ValueError:
+                        continue
+
+                    # Skip dotfiles
+                    if any(part.startswith(".") for part in rel_path.parts):
+                        continue
+
+                    add_dirty(rel_path, "inotify")
+
+                    # Don't block too long collecting events
+                    now = time.monotonic()
+                    if first_event_time and now - first_event_time >= DEBOUNCE_MAX:
+                        break
+            else:
+                # No inotify, just sleep briefly for responsiveness
+                time.sleep(0.05)
+
+        if inotify_tree:
+            del inotify_tree
 
 
-def watcher_poll(loop):
-    """Polling version of the watcher thread."""
-    while not quit.is_set():
-        t0 = time.perf_counter()
-        update_root(loop)
-        update_space(loop)
-        dur = time.perf_counter() - t0
-        if dur > 1.0:
-            logger.debug(f"Reading the full file list took {dur:.1f}s")
-        quit.wait(0.1 + 8 * dur)
-
-
-async def start(app, loop):
+def start(app):
     global rootpath
     config.load_config()
     rootpath = config.config.path
-    use_inotify = sys.platform == "linux"
     app.ctx.watcher = threading.Thread(
-        target=watcher_inotify if use_inotify else watcher_poll,
-        args=[loop],
+        target=watcher,
+        args=[app.loop],
         # Descriptive name for system monitoring
         name=f"cista-watcher {rootpath}",
     )
     app.ctx.watcher.start()
 
 
-async def stop(app, loop):
+def stop(app):
     quit.set()
     app.ctx.watcher.join()

frontend/env.d.ts

@@ -1 +1,7 @@
 /// <reference types="vite/client" />
+
+declare module '*.vue' {
+  import type { DefineComponent } from 'vue'
+  const component: DefineComponent<{}, {}, any>
+  export default component
+}

frontend/index.html

@@ -2,7 +2,7 @@
 <html lang=en>
 <meta charset=UTF-8>
 <title>Cista Storage</title>
-<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+<meta name="viewport" content="width=device-width, initial-scale=1, interactive-widget=resizes-content">
 <link rel="icon" href="/src/assets/logo.svg">
 <link rel="preconnect" href="https://fonts.googleapis.com">
 <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>

frontend/package.json

@@ -16,39 +16,40 @@
     "node": ">=18.0.0"
   },
   "dependencies": {
-    "@imengyu/vue3-context-menu": "^1.3.3",
-    "@vueuse/core": "^10.4.1",
-    "esbuild": "^0.19.5",
-    "lodash": "^4.17.21",
-    "lodash-es": "^4.17.21",
-    "pinia": "^2.1.6",
-    "pinia-plugin-persistedstate": "^3.2.0",
-    "unplugin-vue-components": "^0.25.2",
-    "vite-svg-loader": "^4.0.0",
-    "vue": "^3.3.4",
-    "vue-router": "^4.2.4"
+    "@imengyu/vue3-context-menu": "^1.5.3",
+    "@vueuse/core": "^14.1.0",
+    "esbuild": "^0.27.2",
+    "lodash": "^4.17.23",
+    "lodash-es": "^4.17.23",
+    "paskia": "^0.1.2",
+    "pinia": "^3.0.4",
+    "pinia-plugin-persistedstate": "^4.7.1",
+    "unplugin-vue-components": "^31.0.0",
+    "vite-svg-loader": "^5.1.0",
+    "vue": "^3.5.27",
+    "vue-router": "^5.0.1"
   },
   "devDependencies": {
-    "@rushstack/eslint-patch": "^1.3.3",
-    "@tsconfig/node18": "^18.2.2",
-    "@types/jsdom": "^21.1.3",
-    "@types/lodash-es": "^4.17.10",
-    "@types/node": "^18.17.17",
-    "@vitejs/plugin-vue": "^4.3.4",
-    "@vue/eslint-config-prettier": "^8.0.0",
-    "@vue/eslint-config-typescript": "^12.0.0",
-    "@vue/test-utils": "^2.4.1",
-    "@vue/tsconfig": "^0.4.0",
+    "@rushstack/eslint-patch": "^1.15.0",
+    "@tsconfig/node18": "^18.2.6",
+    "@types/jsdom": "^27.0.0",
+    "@types/lodash-es": "^4.17.12",
+    "@types/node": "^25.1.0",
+    "@vitejs/plugin-vue": "^6.0.3",
+    "@vue/eslint-config-prettier": "^10.2.0",
+    "@vue/eslint-config-typescript": "^14.6.0",
+    "@vue/test-utils": "^2.4.6",
+    "@vue/tsconfig": "^0.8.1",
     "babel-eslint": "^10.1.0",
-    "eslint": "^8.52.0",
-    "eslint-plugin-vue": "^9.18.1",
-    "jsdom": "^22.1.0",
-    "npm-run-all2": "^6.0.6",
-    "prettier": "^3.0.3",
-    "typescript": "~5.2.0",
-    "vite": "^4.4.9",
-    "vitest": "^0.34.4",
-    "vue-tsc": "^1.8.11"
+    "eslint": "^9.39.2",
+    "eslint-plugin-vue": "^10.7.0",
+    "jsdom": "^27.4.0",
+    "npm-run-all2": "^8.0.4",
+    "prettier": "^3.8.1",
+    "typescript": "~5.9.3",
+    "vite": "^7.3.1",
+    "vitest": "^4.0.18",
+    "vue-tsc": "^3.2.4"
   },
   "prettier": {
     "semi": false,

frontend/src/App.vue

@@ -1,16 +1,22 @@
 <template>
-  <LoginModal />
+  <div v-if="store.toast" class="toast-message" @click="store.clearToast()">
+    {{ store.toast }}
+  </div>
+  <div v-else-if="store.error && !store.authInProgress" class="toast-message status" @click="store.error = ''">
+    {{ store.error }}
+  </div>
   <SettingsModal />
+  <UserManagementModal />
+  <AccessDeniedModal />
   <header>
-    <HeaderMain ref="headerMain" :path="path.pathList" :query="path.query">
-      <HeaderSelected :path="path.pathList" />
-    </HeaderMain>
+    <HeaderMain ref="headerMain" :path="path.pathList" :query="path.query" />
     <BreadCrumb :path="path.pathList" primary />
   </header>
   <main>
     <RouterView :path="path.pathList" :query="path.query" />
   </main>
-  <footer>
+  <footer v-if="store.selected.size || store.uprogress.total || store.dprogress.total">
+    <HeaderSelected :path="path.pathList" />
     <TransferBar :status=store.uprogress @cancel=store.cancelUploads class=upload />
     <TransferBar :status=store.dprogress @cancel=store.cancelDownloads class=download />
   </footer>
@@ -28,6 +34,8 @@ import { computed } from 'vue'
 import Router from '@/router/index'
 import type { SortOrder } from './utils/docsort'
 import type SettingsModalVue from './components/SettingsModal.vue'
+import UserManagementModal from './components/UserManagementModal.vue'
+import AccessDeniedModal from './components/AccessDeniedModal.vue'
 
 interface Path {
   path: string
@@ -37,10 +45,10 @@ interface Path {
 const store = useMainStore()
 const path: ComputedRef<Path> = computed(() => {
   const p = decodeURIComponent(Router.currentRoute.value.path).split('//')
-  const pathList = p[0].split('/').filter(value => value !== '')
+  const pathList = (p[0] ?? '').split('/').filter(value => value !== '')
   const query = p.slice(1).join('//')
   return {
-    path: p[0],
+    path: p[0] ?? '',
     pathList,
     query
   }
@@ -94,7 +102,8 @@ const globalShortcutHandler = (event: KeyboardEvent) => {
   // Globally close search, clear errors on Escape
   else if (keyup && event.key === 'Escape') {
     store.error = ''
-    headerMain.value!.closeSearch(event)
+    store.clearToast()
+    headerMain.value!.clearSearch(event)
     store.focusBreadcrumb()
   }
   else if (!input && keyup && event.key === 'Backspace') {
@@ -156,3 +165,42 @@ onUnmounted(() => {
 })
 export type { Path }
 </script>
+
+<style>
+/* Toast notifications - fixed at top center of viewport */
+.toast-message {
+  position: fixed;
+  top: 1rem;
+  left: 50%;
+  transform: translateX(-50%);
+  z-index: 2000;
+  padding: 0.75rem 1.5rem;
+  background: var(--accent-color);
+  color: #000;
+  font-weight: bold;
+  border-radius: 0.25rem;
+  box-shadow: 0 0.25rem 1rem rgba(0, 0, 0, 0.3);
+  cursor: pointer;
+  max-width: 90vw;
+  text-align: center;
+}
+.toast-message.status {
+  background: #555;
+  color: #fff;
+}
+footer {
+  position: fixed;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  background: rgba(0, 0, 0, 0.3);
+  backdrop-filter: blur(4px);
+  z-index: 50;
+}
+footer > * {
+  justify-content: center;
+}
+</style>

frontend/src/assets/main.css

@@ -43,44 +43,14 @@
     --root-font-size: 1.5rem;
   }
 }
-/* Low (landscape) screens: smaller header */
-@media screen and (max-height: 600px) {
-  :root {
-    --header-font-size: calc(10px + 10 * 100vh / 600);  /* 20px at 600px height */
-    --root-font-size: 0.8rem;
-    --header-height: 2rem;
-  }
-  header .breadcrumb > * {
-    padding-top: calc(8 + 8 * 100vh / 600) !important;
-    padding-bottom: calc(8 + 8 * 100vh / 600) !important;
-  }
-}
-@media screen and (max-height: 300px) {
-  :root {
-    --header-font-size: 15px;  /* Don't go smaller than this, no benefit */
-    --header-height: calc(1.75 * 16px);
-    --root-font-size: 0.6rem;
-  }
-  header .breadcrumb > * {
-    padding-top: 14px !important;
-    padding-bottom: 14px !important;
-  }
-}
 @media screen and (orientation: landscape) and (min-width: 700px) {
   /* Breadcrumbs and buttons side by side */
-  :root {
-    --header-font-size: calc(8px + 8 * 100vh / 600);  /* 16px (1rem nominal) at 600px height */
-  }
   header {
     display: flex;
     justify-content: space-between;
   }
   header .headermain { order: 1; }
   header .breadcrumb { align-self: stretch; }
-  header .action-button {
-    width: 2em;
-    height: 2em;
-  }
 }
 @media print {
   :root {
@@ -110,6 +80,7 @@
     margin: 0 .5rem 0 1rem !important;
   }
   body#app {
+    position: static !important;
     height: auto !important;
   }
   main {
@@ -165,6 +136,11 @@ body {
   font-family: 'Roboto';
   color: var(--primary-color);
   margin: 0;
+  /* Prevent any scrolling on body */
+  overflow: hidden;
+  /* Fallback for older browsers */
+  height: 100vh;
+  height: 100dvh;
 }
 tbody .size,
 tbody .modified {
@@ -214,12 +190,14 @@ table {
   gap: 0;
 }
 body#app {
-  height: 100vh;
+  position: fixed;
+  inset: 0;
   display: flex;
   flex-direction: column;
 }
 main {
   flex: 1 1 auto;
+  min-height: 0; /* Allow flex child to shrink below content size */
   padding-bottom: 3em; /* convenience space on the bottom */
   overflow-y: scroll;
   text-align: center;
@@ -233,44 +211,13 @@ header nav.headermain {
 .spacer { flex-grow: 1 }
 .smallgap { flex-shrink: 1; width: 2em }
 
-[data-tooltip]:hover:after {
-  z-index: 101;
-  content: attr(data-tooltip);
-  position: absolute;
-  font-size: 1rem;
-  text-align: center;
-  padding: .5rem 1rem;
-  border-radius: 3rem 0 3rem 0;
-  box-shadow: 0 0 1rem var(--accent-color);
-  transform: translate(calc(1rem + -50%), 150%);
-  background-color: var(--accent-color);
-  color: var(--primary-color);
-  white-space: pre;
-  animation: appearbriefly calc(10 * var(--transition-time)) linear forwards;
-}
-.modified [data-tooltip]:hover:after {
-  transform: translate(calc(1rem + 1ex + -100%), calc(-1.5rem + 100%));
-}
-@keyframes appearbriefly {
-  from {
-    opacity: 0;
-  }
-  30% {
-    opacity: 0;
-  }
-  40% {
-    opacity: 1;
-  }
-  90% {
-    opacity: 1;
-  }
-  to {
-    opacity: 0;
-  }
-}
+
 .error-message {
   padding: .5em;
   font-weight: bold;
   background: var(--accent-color);
   color: #000;
 }
+.ghost {
+  opacity: 0.5;
+}

frontend/src/assets/svg/index.ts

@@ -0,0 +1,137 @@
+// SVG icon index - all icons bundled together
+import AddFile from './add-file.svg'
+import AddFolder from './add-folder.svg'
+import Arrow from './arrow.svg'
+import ArrowsH from './arrows-h.svg'
+import ArrowsV from './arrows-v.svg'
+import Check from './check.svg'
+import Code from './code.svg'
+import Cog from './cog.svg'
+import Copy from './copy.svg'
+import CreateFile from './create-file.svg'
+import CreateFolder from './create-folder.svg'
+import Cross from './cross.svg'
+import Disk from './disk.svg'
+import Download from './download.svg'
+import Exclamation from './exclamation.svg'
+import Eye from './eye.svg'
+import Find from './find.svg'
+import Fullscreen from './fullscreen.svg'
+import Github from './github.svg'
+import Home from './home.svg'
+import Info from './info.svg'
+import Link from './link.svg'
+import Logo from './logo.svg'
+import Loop from './loop.svg'
+import Menu from './menu.svg'
+import Next from './next.svg'
+import Open from './open.svg'
+import Paste from './paste.svg'
+import Pause from './pause.svg'
+import Pencil from './pencil.svg'
+import Play from './play.svg'
+import Plus from './plus.svg'
+import Previous from './previous.svg'
+import Reload from './reload.svg'
+import Rename from './rename.svg'
+import Scissors from './scissors.svg'
+import Shuffle from './shuffle.svg'
+import Signin from './signin.svg'
+import Signout from './signout.svg'
+import Skip from './skip.svg'
+import Spinner from './spinner.svg'
+import Stop from './stop.svg'
+import Trash from './trash.svg'
+import Triangle from './triangle.svg'
+import Unfullscreen from './unfullscreen.svg'
+import UpArrow from './up-arrow.svg'
+import UploadCloud from './upload-cloud.svg'
+import UserCog from './user-cog.svg'
+import User from './user.svg'
+import VolumeHigh from './volume-high.svg'
+import VolumeLow from './volume-low.svg'
+import VolumeMedium from './volume-medium.svg'
+import VolumeMute from './volume-mute.svg'
+import WindowCross from './window-cross.svg'
+import Window from './window.svg'
+import Wordwrap from './wordwrap.svg'
+import Zoomin from './zoomin.svg'
+import Zoomout from './zoomout.svg'
+
+// Named exports for direct imports
+export {
+  AddFile, AddFolder, Arrow, ArrowsH, ArrowsV,
+  Check, Code, Cog, Copy, CreateFile, CreateFolder, Cross,
+  Disk, Download, Exclamation, Eye, Find, Fullscreen,
+  Github, Home, Info, Link, Logo, Loop, Menu,
+  Next, Open, Paste, Pause, Pencil, Play, Plus, Previous,
+  Reload, Rename, Scissors, Shuffle, Signin, Signout, Skip,
+  Spinner, Stop, Trash, Triangle, Unfullscreen, UpArrow,
+  UploadCloud, UserCog, User, VolumeHigh, VolumeLow,
+  VolumeMedium, VolumeMute, WindowCross, Window, Wordwrap,
+  Zoomin, Zoomout
+}
+
+// Icon lookup by kebab-case name (for SvgButton compatibility)
+export const icons = {
+  'add-file': AddFile,
+  'add-folder': AddFolder,
+  'arrow': Arrow,
+  'arrows-h': ArrowsH,
+  'arrows-v': ArrowsV,
+  'check': Check,
+  'code': Code,
+  'cog': Cog,
+  'copy': Copy,
+  'create-file': CreateFile,
+  'create-folder': CreateFolder,
+  'cross': Cross,
+  'disk': Disk,
+  'download': Download,
+  'exclamation': Exclamation,
+  'eye': Eye,
+  'find': Find,
+  'fullscreen': Fullscreen,
+  'github': Github,
+  'home': Home,
+  'info': Info,
+  'link': Link,
+  'logo': Logo,
+  'loop': Loop,
+  'menu': Menu,
+  'next': Next,
+  'open': Open,
+  'paste': Paste,
+  'pause': Pause,
+  'pencil': Pencil,
+  'play': Play,
+  'plus': Plus,
+  'previous': Previous,
+  'reload': Reload,
+  'rename': Rename,
+  'scissors': Scissors,
+  'shuffle': Shuffle,
+  'signin': Signin,
+  'signout': Signout,
+  'skip': Skip,
+  'spinner': Spinner,
+  'stop': Stop,
+  'trash': Trash,
+  'triangle': Triangle,
+  'unfullscreen': Unfullscreen,
+  'up-arrow': UpArrow,
+  'upload-cloud': UploadCloud,
+  'user-cog': UserCog,
+  'user': User,
+  'volume-high': VolumeHigh,
+  'volume-low': VolumeLow,
+  'volume-medium': VolumeMedium,
+  'volume-mute': VolumeMute,
+  'window-cross': WindowCross,
+  'window': Window,
+  'wordwrap': Wordwrap,
+  'zoomin': Zoomin,
+  'zoomout': Zoomout,
+} as const
+
+export type IconName = keyof typeof icons

frontend/src/components/AccessDeniedModal.vue

@@ -0,0 +1,46 @@
+<template>
+  <div v-if="store.dialog === 'accessdenied'" class="modal-overlay">
+    <div class="modal-dialog" id="accessdenied">
+      <div class="modal-content access-denied">
+        <p class="icon">⛔</p>
+        <p class="message">Access Denied</p>
+        <button @click="reload" class="button">Reload</button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { useMainStore } from '@/stores/main'
+import { holdGlobalBackdrop } from 'paskia'
+import { watchEffect } from 'vue'
+
+const store = useMainStore()
+
+const reload = () => {
+  location.reload()
+}
+
+// Keep backdrop active when this dialog shows
+watchEffect(() => {
+  if (store.dialog === 'accessdenied') {
+    holdGlobalBackdrop()
+  }
+})
+</script>
+
+<style scoped>
+.access-denied {
+  text-align: center;
+  padding: 2rem !important;
+}
+.access-denied .icon {
+  font-size: 4rem;
+  margin: 0 0 1rem 0;
+}
+.access-denied .message {
+  font-size: 1.5rem;
+  font-weight: bold;
+  margin: 0 0 1.5rem 0;
+}
+</style>

frontend/src/components/BreadCrumb.vue

@@ -14,9 +14,12 @@
       :class="{ current: !!isCurrent(0) }"
       :aria-current="isCurrent(0)"
       @click.prevent="navigate(0)"
-      title="/"
+      @mouseenter="homeTooltip?.startHover"
+      @mousemove="homeTooltip?.updatePosition"
+      @mouseleave="homeTooltip?.endHover"
     >
       <component :is="home" />
+      <CursorTooltip ref="homeTooltip" text="/">/</CursorTooltip>
     </a>
     <template v-for="(location, index) in longest" :key="index">
       <a :href="`/#/${longest.slice(0, index + 1).join('/')}/`"
@@ -24,24 +27,35 @@
         :aria-current="isCurrent(index + 1)"
         @click.prevent="navigate(index + 1)"
         :ref="el => setLinkRef(index + 1, el)"
-        :title="`/${longest.slice(0, index + 1).join('/')}`"
-      >{{ location }}</a>
+        @mouseenter="pathTooltips.get(index)?.startHover"
+        @mousemove="pathTooltips.get(index)?.updatePosition"
+        @mouseleave="pathTooltips.get(index)?.endHover"
+      >{{ location }}<CursorTooltip :ref="el => setPathTooltipRef(index, el)" :text="`/${longest.slice(0, index + 1).join('/')}`">{{ `/${longest.slice(0, index + 1).join('/')}` }}</CursorTooltip></a>
     </template>
   </nav>
 </template>
 
 <script setup lang="ts">
-import home from '@/assets/svg/home.svg'
+import { Home } from '@/assets/svg'
 import { nextTick, onBeforeUpdate, ref, watchEffect } from 'vue'
 import { useRouter } from 'vue-router'
 import { exists } from '@/utils/fileutil'
+import CursorTooltip from './CursorTooltip.vue'
 
+const home = Home
 const router = useRouter()
 
 const links = [] as Array<HTMLElement>
 const setLinkRef = (index: number, el: any) => { if (el) links[index] = el }
 onBeforeUpdate(() => { links.length = 1 })  // 1 to keep home
 
+const homeTooltip = ref<InstanceType<typeof CursorTooltip> | null>(null)
+const pathTooltips = ref<Map<number, InstanceType<typeof CursorTooltip>>>(new Map())
+const setPathTooltipRef = (index: number, el: any) => {
+  if (el) pathTooltips.value.set(index, el)
+  else pathTooltips.value.delete(index)
+}
+
 const props = defineProps<{
   path: Array<string>
   primary?: boolean
@@ -54,7 +68,7 @@ const isCurrent = (index: number) => index == props.path.length ? 'location' : u
 const focusCurrent = () => {
   nextTick(() => {
     const index = props.path.length
-    if (index < links.length) links[index].focus()
+    if (index < links.length) links[index]!.focus()
   })
 }
 
@@ -63,7 +77,7 @@ const navigate = (index: number) => {
   if (!link) throw Error(`No link at index ${index} (path: ${props.path})`)
   const url = index ? `/${longest.value.slice(0, index).join('/')}/` : '/'
   const long = longest.value.length ? `/${longest.value.join('/')}/` : '/'
-  const browser = decodeURIComponent(location.hash.slice(1).split('//')[0])
+  const browser = decodeURIComponent(location.hash.slice(1).split('//')[0] ?? '')
   const u = url.replaceAll('?', '%3F').replaceAll('#', '%23')
   // Clicking on current link clears the rest of the path and adds new history
   if (isCurrent(index)) { longest.value.splice(index); router.push(u) }

frontend/src/components/CursorTooltip.vue

@@ -0,0 +1,169 @@
+<template>
+  <Teleport to="body">
+    <div v-if="visible" ref="tooltipEl" class="cursor-tooltip" :style="tooltipStyle">
+      <slot></slot>
+    </div>
+  </Teleport>
+</template>
+
+<script lang="ts">
+// Global activation state - shared across all instances
+let globalActive = false
+let globalDeactivateTimer: ReturnType<typeof setTimeout> | null = null
+// Track recent touch to suppress touch-triggered mouse events
+let lastTouchTime = 0
+</script>
+
+<script setup lang="ts">
+import { computed, ref, onMounted, onUnmounted } from 'vue'
+
+const props = defineProps<{
+  text: string
+  delay?: number
+}>()
+
+const visible = ref(false)
+const mouseX = ref(0)
+const mouseY = ref(0)
+const tooltipWidth = ref(0)
+const tooltipHeight = ref(0)
+const tooltipEl = ref<HTMLElement | null>(null)
+let settleTimer: ReturnType<typeof setTimeout> | null = null
+let lastMoveX = 0
+let lastMoveY = 0
+
+// Movement threshold (pixels) - cursor must settle within this radius
+const SETTLE_THRESHOLD = 8
+
+const tooltipStyle = computed(() => {
+  // Constrain to viewport
+  const pad = 8
+  let x = mouseX.value
+  let y = mouseY.value
+
+  // Only constrain if we've measured the tooltip
+  if (tooltipWidth.value > 0 && tooltipHeight.value > 0) {
+    // Adjust horizontal position if tooltip would overflow right edge
+    if (x + tooltipWidth.value + pad > window.innerWidth) {
+      x = window.innerWidth - tooltipWidth.value - pad
+    }
+    // Adjust vertical position if tooltip would overflow bottom edge
+    if (y + tooltipHeight.value + pad > window.innerHeight) {
+      y = window.innerHeight - tooltipHeight.value - pad
+    }
+    // Don't go past left/top edges
+    x = Math.max(pad, x)
+    y = Math.max(pad, y)
+  }
+
+  return {
+    left: `${x}px`,
+    top: `${y}px`,
+  }
+})
+
+// Track touch events globally to suppress touch-simulated mouse events
+const onTouchStart = () => { lastTouchTime = Date.now() }
+onMounted(() => document.addEventListener('touchstart', onTouchStart, { passive: true }))
+onUnmounted(() => document.removeEventListener('touchstart', onTouchStart))
+
+// Check if event is likely from touch (touch happened within last 500ms)
+const isTouchEvent = () => Date.now() - lastTouchTime < 500
+
+const showTooltip = () => {
+  visible.value = true
+  globalActive = true
+  // Measure tooltip after it renders
+  requestAnimationFrame(() => {
+    if (tooltipEl.value) {
+      tooltipWidth.value = tooltipEl.value.offsetWidth
+      tooltipHeight.value = tooltipEl.value.offsetHeight
+    }
+  })
+}
+
+const scheduleTooltip = () => {
+  if (settleTimer) clearTimeout(settleTimer)
+  if (globalDeactivateTimer) {
+    clearTimeout(globalDeactivateTimer)
+    globalDeactivateTimer = null
+  }
+  const delay = globalActive ? 0 : (props.delay ?? 900)
+  settleTimer = setTimeout(showTooltip, delay)
+}
+
+const startHover = (e: MouseEvent) => {
+  // Ignore touch-simulated mouse events
+  if (isTouchEvent()) return
+
+  mouseX.value = e.clientX
+  mouseY.value = e.clientY
+  lastMoveX = e.clientX
+  lastMoveY = e.clientY
+}
+
+const updatePosition = (e: MouseEvent) => {
+  // Ignore touch-simulated mouse events
+  if (isTouchEvent()) return
+
+  mouseX.value = e.clientX
+  mouseY.value = e.clientY
+
+  // If tooltip is already visible, just update position
+  if (visible.value) return
+
+  const dx = e.clientX - lastMoveX
+  const dy = e.clientY - lastMoveY
+  const distance = Math.sqrt(dx * dx + dy * dy)
+
+  // If cursor moved beyond threshold, reset settle timer
+  if (distance > SETTLE_THRESHOLD) {
+    lastMoveX = e.clientX
+    lastMoveY = e.clientY
+    if (settleTimer) {
+      clearTimeout(settleTimer)
+      settleTimer = null
+    }
+  }
+
+  // Schedule tooltip when cursor settles
+  if (!settleTimer) {
+    scheduleTooltip()
+  }
+}
+
+const endHover = () => {
+  if (settleTimer) {
+    clearTimeout(settleTimer)
+    settleTimer = null
+  }
+  visible.value = false
+  // Deactivate global state after a short delay if no new tooltip started
+  if (globalDeactivateTimer) clearTimeout(globalDeactivateTimer)
+  globalDeactivateTimer = setTimeout(() => {
+    globalActive = false
+  }, 400)
+}
+
+defineExpose({
+  startHover,
+  updatePosition,
+  endHover,
+})
+</script>
+
+<style scoped>
+.cursor-tooltip {
+  position: fixed;
+  z-index: 10000;
+  padding: .5rem 1rem;
+  border-radius: 3rem 0 3rem 0;
+  box-shadow: 0 0 1rem rgba(0, 0, 0, 0.5);
+  background: rgba(0, 0, 0, 0.3);
+  backdrop-filter: blur(4px);
+  -webkit-backdrop-filter: blur(4px);
+  color: #fff;
+  pointer-events: none;
+  font-size: 1rem;
+}
+</style>

frontend/src/components/DownloadButton.vue

@@ -1,11 +1,12 @@
 <template>
-  <SvgButton name="download" data-tooltip="Download" @click="download" />
+  <SvgButton name="download" tooltip="Download" @click="download" />
 </template>
 
 <script setup lang="ts">
 import { useMainStore } from '@/stores/main'
+import { apiFetch } from '@/repositories/Client'
 import type { SelectedItems } from '@/repositories/Document'
-import { reactive } from 'vue';
+import { zipName } from '@/utils/fileutil'
 
 const store = useMainStore()
 
@@ -78,7 +79,7 @@ const filesystemdl = async (sel: SelectedItems, handle: FileSystemDirectoryHandl
         h = await h.getDirectoryHandle(dir.normalize('NFC'), { create: true })
       } catch (error) {
         console.error('Failed to create directory', hdir, error)
-        return
+        throw new Error(`Failed to create directory ${hdir}: ${error}`)
       }
       console.log('Created', hdir)
     }
@@ -90,78 +91,82 @@ const filesystemdl = async (sel: SelectedItems, handle: FileSystemDirectoryHandl
       fileHandle = await h.getFileHandle(name, { create: true })
     } catch (error) {
       console.error('Failed to create file', rel, full, hdir + name, error)
-      return
+      throw new Error(`Failed to create file ${hdir + name}: ${error}`)
     }
-    const writable = await fileHandle.createWritable()
-    const url = `/files/${rel}`
-    console.log('Fetching', url)
-    const res = await fetch(url)
-    if (!res.ok) {
-      store.error = `Failed to download ${url}: ${res.status} ${res.statusText}`
-      throw new Error(`Failed to download ${url}: ${res.status} ${res.statusText}`)
-    }
-    if (res.body) {
-      ++store.dprogress.fileidx
-      const reader = res.body.getReader()
-      await writable.truncate(0)
-      store.error = "Direct download."
-      store.dprogress.tlast = Date.now()
-      while (true) {
-        const { value, done } = await reader.read()
-        if (done) break
-        await writable.write(value)
-        const now = Date.now()
-        const size = value.byteLength
-        store.dprogress.xfer += size
-        store.dprogress.filepos += size
-        store.dprogress.statbytes += size
-        store.dprogress.statdur += now - store.dprogress.tlast
-        store.dprogress.tlast = now
+    try {
+      const writable = await fileHandle.createWritable()
+      const url = `/files/${rel}`
+      console.log('Fetching', url)
+      const res = await apiFetch(url)
+      if (!res.ok) {
+        store.error = `Failed to download ${url}: ${res.status} ${res.statusText}`
+        throw new Error(`Failed to download ${url}: ${res.status} ${res.statusText}`)
       }
+      if (res.body) {
+        ++store.dprogress.fileidx
+        const reader = res.body.getReader()
+        await writable.truncate(0)
+        store.dprogress.tlast = Date.now()
+        while (true) {
+          const { value, done } = await reader.read()
+          if (done) break
+          await writable.write(value)
+          const now = Date.now()
+          const size = value.byteLength
+          store.dprogress.xfer += size
+          store.dprogress.filepos += size
+          store.dprogress.statbytes += size
+          store.dprogress.statdur += now - store.dprogress.tlast
+          store.dprogress.tlast = now
+        }
+      }
+      await writable.close()
+      console.log('Saved', hdir + name)
+    } catch (error) {
+      console.error('Failed to write file', hdir + name, error)
+      throw new Error(`Failed to write file ${hdir + name}: ${error}`)
     }
-    await writable.close()
-    console.log('Saved', hdir + name)
   }
   statReset()
 }
 
-const download = async () => {
+const zipdl = (sel: SelectedItems) => {
+  const items = sel.keys.map(k => sel.docs[k]!)
+  const name = zipName(items)
+  linkdl(`/zip/${Array.from(sel.keys).join('+')}/${name}.zip`)
+  store.showToast(`Downloading ${name}.zip`)
+  store.selected.clear()
+}
+
+const download = async (e: MouseEvent) => {
   const sel = store.selectedFiles
-  console.log('Download', sel)
   if (sel.keys.length === 0) {
-    console.warn('Attempted download but no files found. Missing selected keys:', sel.missing)
-    store.error = 'No existing files selected'
+    store.showToast('No existing files selected')
     store.selected.clear()
     return
   }
-  // Plain old a href download if only one file (ignoring any folders)
+  // Single file: direct download
   const files = sel.recursive.filter(([rel, full, doc]) => !doc.dir)
   if (files.length === 1) {
     store.selected.clear()
-    store.error = "Single file via browser downloads"
-    return linkdl(`/files/${files[0][1]}`)
+    store.showToast(`Downloading ${files[0]![0].split('/').pop()}`)
+    return linkdl(`/files/${files[0]![1]}`)
   }
-  // Use FileSystem API if multiple files and the browser supports it
-  if ('showDirectoryPicker' in window) {
+  // Alt+click: download to folder (hidden feature)
+  if (e.altKey && 'showDirectoryPicker' in window) {
     try {
       // @ts-ignore
-      const handle = await window.showDirectoryPicker({
-        startIn: 'downloads',
-        mode: 'readwrite'
-      })
+      const handle = await window.showDirectoryPicker({ startIn: 'downloads', mode: 'readwrite' })
       await filesystemdl(sel, handle)
       store.selected.clear()
-      return
     } catch (e) {
-      console.error('Download to folder aborted', e)
+      console.error('Download to folder failed', e)
+      store.showToast('Download to folder failed')
     }
+    return
   }
-  // Otherwise, zip and download
-  console.log("Falling back to zip download")
-  const name = sel.keys.length === 1 ? sel.docs[sel.keys[0]].name : 'download'
-  linkdl(`/zip/${Array.from(sel.keys).join('+')}/${name}.zip`)
-  store.error = "Downloading as ZIP via browser downloads"
-  store.selected.clear()
+  // Default: ZIP download
+  zipdl(sel)
 }
 
 </script>

frontend/src/components/EmptyFolder.vue

@@ -1,8 +1,9 @@
 <template>
   <div v-if="!props.path || documents.length === 0" class="empty-container">
-    <component :is="cog" class="cog"/>
-    <p v-if="!store.connected">No Connection</p>
-    <p v-else-if="store.document.length === 0">Waiting for File List</p>
+    <component :is="cog" :class="['cog', { stopped: store.dialog === 'accessdenied' || store.authInProgress }]"/>
+    <p v-if="store.dialog === 'accessdenied'">Access Denied</p>
+    <p v-else-if="!store.connected">No Connection</p>
+    <p v-else-if="store.documentCount === 0">Waiting for File List</p>
     <p v-else-if="store.query">No matches!</p>
     <p v-else-if="!exists(props.path)">Folder not found</p>
     <p v-else>Empty folder</p>
@@ -10,11 +11,11 @@
 </template>
 
 <script setup lang="ts">
-import { defineProps } from 'vue'
 import { useMainStore } from '@/stores/main'
-import cog from '@/assets/svg/cog.svg'
+import { Cog } from '@/assets/svg'
 import { exists } from '@/utils/fileutil'
 
+const cog = Cog
 const store = useMainStore()
 const props = defineProps<{
   path: string[],
@@ -35,4 +36,7 @@ svg.cog {
   filter: drop-shadow(0 0 1rem black);
   fill: #888;
 }
+svg.cog.stopped {
+  animation: none;
+}
 </style>

frontend/src/components/FileExplorer.vue

@@ -17,7 +17,7 @@
         <td class="name">
           <FileRenameInput :doc="editing" :rename="mkdir" :exit="() => {editing = null}" />
         </td>
-        <FileModified :doc=editing :key=nowkey />
+        <FileModified :doc=editing :now=nowkey />
         <FileSize :doc=editing />
         <td class="menu"></td>
       </tr>
@@ -28,7 +28,7 @@
 
         <tr
           :id="`file-${doc.key}`"
-          :class="{ file: !doc.dir, folder: doc.dir, cursor: store.cursor === doc.key }"
+          :class="{ file: !doc.dir, folder: doc.dir, cursor: store.cursor === doc.key, ghost: doc.ghost }"
           @click="store.cursor = store.cursor === doc.key ? '' : doc.key"
           @contextmenu.prevent="contextMenu($event, doc)"
         >
@@ -55,7 +55,7 @@
               <button tabindex=-1 v-if="store.cursor == doc.key" class="rename-button" @click="() => (editing = doc)">🖊️</button>
             </template>
           </td>
-          <FileModified :doc=doc :key=nowkey />
+          <FileModified :doc=doc :now=nowkey />
           <FileSize :doc=doc />
           <td class="menu">
             <button tabindex=-1 @click.stop="contextMenu($event, doc)">⋮</button>
@@ -175,7 +175,7 @@ defineExpose({
       let [begin, end] = d > 0 ? [index, moveto] : [moveto, index]
       for (let p = begin; p !== end; p = increment(p, 1)) {
         if (p === N) continue
-        const key = docs[p].key
+        const key = docs[p]!.key
         if (store.selected.has(key)) store.selected.delete(key)
         else store.selected.add(key)
       }
@@ -249,14 +249,15 @@ const mkdir = (doc: Doc, name: string) => {
       }
     }
   })
-  // We should get an update from watch but this is quicker
   doc.name = name
   doc.key = crypto.randomUUID()
+  store.addGhost(doc)
+  editing.value = null
 }
 const showFolderBreadcrumb = (i: number) => {
   const docs = props.documents
-  const docloc = docs[i].loc
-  return i === 0 ? docloc !== loc.value : docloc !== docs[i - 1].loc
+  const docloc = docs[i]!.loc
+  return i === 0 ? docloc !== loc.value : docloc !== docs[i - 1]!.loc
 }
 const selectionIndeterminate = computed({
   get: () => {
@@ -290,13 +291,96 @@ const allSelected = computed({
 
 const loc = computed(() => props.path.join('/'))
 
+const downloadFile = (doc: Doc) => {
+  const path = doc.loc ? `${doc.loc}/${doc.name}` : doc.name
+  if (doc.dir) {
+    // Download folder as ZIP
+    const a = document.createElement('a')
+    a.href = `/zip/${doc.key}/${doc.name}.zip`
+    a.download = ''
+    a.click()
+    store.showToast(`Downloading ${doc.name}.zip`)
+  } else {
+    // Download single file
+    const a = document.createElement('a')
+    a.href = `/files/${path}`
+    a.download = ''
+    a.click()
+    store.showToast(`Downloading ${doc.name}`)
+  }
+}
+
+const copyLink = async (doc: Doc) => {
+  const url = new URL(doc.url, window.location.origin).href
+  try {
+    await navigator.clipboard.writeText(url)
+    store.showToast('📋 Link copied!')
+  } catch {
+    store.showToast('Failed to copy link')
+  }
+}
+
+const copyImage = async (doc: Doc) => {
+  const path = doc.loc ? `${doc.loc}/${doc.name}` : doc.name
+  try {
+    store.showToast('Copying image...')
+    const res = await fetch(`/files/${path}`)
+    const blob = await res.blob()
+    // Convert to PNG if needed (clipboard only supports PNG)
+    if (blob.type !== 'image/png') {
+      const img = new Image()
+      img.src = URL.createObjectURL(blob)
+      await new Promise(r => img.onload = r)
+      const canvas = document.createElement('canvas')
+      canvas.width = img.naturalWidth
+      canvas.height = img.naturalHeight
+      canvas.getContext('2d')!.drawImage(img, 0, 0)
+      const pngBlob = await new Promise<Blob>(r => canvas.toBlob(b => r(b!), 'image/png'))
+      URL.revokeObjectURL(img.src)
+      await navigator.clipboard.write([new ClipboardItem({ 'image/png': pngBlob })])
+    } else {
+      await navigator.clipboard.write([new ClipboardItem({ 'image/png': blob })])
+    }
+    store.showToast('📋 Image copied!')
+  } catch (e) {
+    console.error('Copy image failed', e)
+    store.showToast('Failed to copy image')
+  }
+}
+
+const deleteFile = (doc: Doc) => {
+  const path = doc.loc ? `${doc.loc}/${doc.name}` : doc.name
+  store.hideDoc(path)
+  const control = connect(controlUrl, {
+    message(ev: MessageEvent) {
+      const res = JSON.parse(ev.data)
+      if ('error' in res) {
+        console.error('Delete failed', res.error)
+        store.unhideDoc(path)
+        store.showToast(res.error.message || 'Delete failed')
+      } else if (res.status === 'ack') {
+        store.showToast(`🗑️ Deleted ${doc.name}`)
+        control.close()
+      }
+    }
+  })
+  control.onopen = () => {
+    control.send(JSON.stringify({ op: 'rm', sel: [path] }))
+  }
+}
+
 const contextMenu = (ev: MouseEvent, doc: Doc) => {
   store.cursor = doc.key
-  ContextMenu.showContextMenu({
-    x: ev.x, y: ev.y, items: [
-      { label: 'Rename', onClick: () => { editing.value = doc } },
-    ],
-  })
+  const items = [
+    { label: '📥 Download', onClick: () => downloadFile(doc) },
+    { label: '🔗 Copy Link', onClick: () => copyLink(doc) },
+  ]
+  if (doc.img) items.push({ label: '📋 Copy Image', onClick: () => copyImage(doc) })
+  items.push(
+    { label: '✏️ Rename', onClick: () => { editing.value = doc } },
+    { label: '🗑️ Delete', onClick: () => deleteFile(doc) },
+  )
+  ContextMenu.showContextMenu({ x: ev.x, y: ev.y, items })
 }
 </script>
 
@@ -392,9 +476,6 @@ tbody tr.cursor {
 .sortcolumn:hover {
   cursor: pointer;
 }
-.sortcolumn:hover::after {
-  color: var(--accent-color);
-}
 .sortcolumn {
   padding-right: 1.5rem;
 }

frontend/src/components/FileModified.vue

@@ -1,22 +1,39 @@
 <template>
   <td class="modified right">
-    <time :data-tooltip=tooltip :datetime=datetime>{{ doc.modified }}</time>
+    <time
+      :datetime=datetime
+      @mouseenter="tooltip?.startHover"
+      @mousemove="tooltip?.updatePosition"
+      @mouseleave="tooltip?.endHover"
+    >{{ modified }}</time>
+    <CursorTooltip ref="tooltip" :text="tooltipText">{{ tooltipText }}</CursorTooltip>
   </td>
 </template>
 
 <script setup lang="ts">
 import { Doc } from '@/repositories/Document'
-import { computed } from 'vue'
+import { formatUnixDate } from '@/utils'
+import { computed, ref } from 'vue'
+import CursorTooltip from './CursorTooltip.vue'
+
+const props = defineProps<{
+    doc: Doc
+    now: number
+}>()
+
+const tooltip = ref<InstanceType<typeof CursorTooltip> | null>(null)
+
+// Reference props.now to trigger reactivity when time updates
+const modified = computed(() => {
+  props.now  // trigger reactivity
+  return formatUnixDate(props.doc.mtime)
+})
 
 const datetime = computed(() =>
   new Date(1000 * props.doc.mtime).toISOString().replace('.000Z', 'Z')
 )
 
-const tooltip = computed(() =>
-  datetime.value.replace('T', '\n').replace('Z', ' UTC')
+const tooltipText = computed(() =>
+  datetime.value.replace('T', ' ').replace('Z', ' UTC')
 )
-
-const props = defineProps<{
-    doc: Doc
-}>()
 </script>

frontend/src/components/FileSize.vue

@@ -7,7 +7,7 @@ import { Doc } from '@/repositories/Document'
 import { computed } from 'vue'
 
 const sizeClass = computed(() => {
-  const unit = props.doc.sizedisp.split('\u202F').slice(-1)[0]
+  const unit = props.doc.sizedisp.split('\u202F').slice(-1)[0]!
   return +unit ? "bytes" : unit
 })
 

frontend/src/components/Gallery.vue

@@ -2,12 +2,8 @@
   <div v-if="props.documents.length || editing" class="gallery" ref="gallery">
     <GalleryFigure v-if="editing?.key === 'new'" :doc="editing" :key=editing.key :editing="{rename: mkdir, exit}" />
     <template v-for="(doc, index) in documents" :key=doc.key>
-      <GalleryFigure :doc=doc :editing="editing === doc ? {rename, exit} : null" @menu="contextMenu($event, doc)">
-        <template v-if=showFolderBreadcrumb(index)>
-          <BreadCrumb :path="doc.loc ? doc.loc.split('/') : []" class="folder-change"/>
-          <div class="spacer"></div>
-        </template>
-      </GalleryFigure>
+      <BreadCrumb v-if="showFolderBreadcrumb(index)" :path="doc.loc ? doc.loc.split('/') : []" class="folder-indicator"/>
+      <GalleryFigure :doc=doc :editing="editing === doc ? {rename, exit} : null" @menu="contextMenu($event, doc)" :class="{ 'folder-start': showFolderBreadcrumb(index) }" />
     </template>
   </div>
 </template>
@@ -55,10 +51,12 @@ const rename = (doc: Doc, newName: string) => {
   doc.name = newName // We should get an update from watch but this is quicker
 }
 const gallery = ref<HTMLElement>()
-const columns = computed(() => {
-  if (!gallery.value) return 1
-  return getComputedStyle(gallery.value).gridTemplateColumns.split(' ').length
-})
+const columnCount = ref(1)
+const updateColumns = () => {
+  if (!gallery.value) return
+  columnCount.value = getComputedStyle(gallery.value).gridTemplateColumns.split(' ').length
+}
+const columns = computed(() => columnCount.value)
 defineExpose({
   newFolder() {
     const now = Math.floor(Date.now() / 1000)
@@ -131,7 +129,7 @@ defineExpose({
       let [begin, end] = d > 0 ? [index, moveto] : [moveto, index]
       for (let p = begin; p !== end; p = increment(p, 1)) {
         if (p === N) continue
-        const key = docs[p].key
+        const key = docs[p]!.key
         if (store.selected.has(key)) store.selected.delete(key)
         else store.selected.add(key)
       }
@@ -168,12 +166,21 @@ watchEffect(() => {
     focusBreadcrumb()
   }
 })
+let resizeObserver: ResizeObserver | null = null
 onMounted(() => {
   const active = document.querySelector('.cursor') as HTMLElement | null
   if (active) {
     active.scrollIntoView({ block: 'center', behavior: 'instant' })
     active.focus()
   }
+  updateColumns()
+  if (gallery.value) {
+    resizeObserver = new ResizeObserver(updateColumns)
+    resizeObserver.observe(gallery.value)
+  }
+})
+onUnmounted(() => {
+  resizeObserver?.disconnect()
 })
 const mkdir = (doc: Doc, name: string) => {
   const control = connect(controlUrl, {
@@ -196,26 +203,17 @@ const mkdir = (doc: Doc, name: string) => {
       }
     }
   })
-  // We should get an update from watch but this is quicker
   doc.name = name
   doc.key = crypto.randomUUID()
+  store.addGhost(doc)
+  editing.value = null
 }
 const showFolderBreadcrumb = (i: number) => {
   const docs = props.documents
-  const docloc = docs[i].loc
-  return i === 0 ? docloc !== loc.value : docloc !== docs[i - 1].loc
+  const docloc = docs[i]!.loc
+  return i === 0 ? docloc !== loc.value : docloc !== docs[i - 1]!.loc
 }
-const selectionIndeterminate = computed({
-  get: () => {
-    return (
-      props.documents.length > 0 &&
-      props.documents.some((doc: Doc) => store.selected.has(doc.key)) &&
-      !allSelected.value
-    )
-  },
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  set: (value: boolean) => {}
-})
+
 const allSelected = computed({
   get: () => {
     return (
@@ -237,13 +235,96 @@ const allSelected = computed({
 
 const loc = computed(() => props.path.join('/'))
 
+const downloadFile = (doc: Doc) => {
+  const path = doc.loc ? `${doc.loc}/${doc.name}` : doc.name
+  if (doc.dir) {
+    // Download folder as ZIP
+    const a = document.createElement('a')
+    a.href = `/zip/${doc.key}/${doc.name}.zip`
+    a.download = ''
+    a.click()
+    store.showToast(`Downloading ${doc.name}.zip`)
+  } else {
+    // Download single file
+    const a = document.createElement('a')
+    a.href = `/files/${path}`
+    a.download = ''
+    a.click()
+    store.showToast(`Downloading ${doc.name}`)
+  }
+}
+
+const copyLink = async (doc: Doc) => {
+  const url = new URL(doc.url, window.location.origin).href
+  try {
+    await navigator.clipboard.writeText(url)
+    store.showToast('📋 Link copied!')
+  } catch {
+    store.showToast('Failed to copy link')
+  }
+}
+
+const copyImage = async (doc: Doc) => {
+  const path = doc.loc ? `${doc.loc}/${doc.name}` : doc.name
+  try {
+    store.showToast('Copying image...')
+    const res = await fetch(`/files/${path}`)
+    const blob = await res.blob()
+    // Convert to PNG if needed (clipboard only supports PNG)
+    if (blob.type !== 'image/png') {
+      const img = new Image()
+      img.src = URL.createObjectURL(blob)
+      await new Promise(r => img.onload = r)
+      const canvas = document.createElement('canvas')
+      canvas.width = img.naturalWidth
+      canvas.height = img.naturalHeight
+      canvas.getContext('2d')!.drawImage(img, 0, 0)
+      const pngBlob = await new Promise<Blob>(r => canvas.toBlob(b => r(b!), 'image/png'))
+      URL.revokeObjectURL(img.src)
+      await navigator.clipboard.write([new ClipboardItem({ 'image/png': pngBlob })])
+    } else {
+      await navigator.clipboard.write([new ClipboardItem({ 'image/png': blob })])
+    }
+    store.showToast('📋 Image copied!')
+  } catch (e) {
+    console.error('Copy image failed', e)
+    store.showToast('Failed to copy image')
+  }
+}
+
+const deleteFile = (doc: Doc) => {
+  const path = doc.loc ? `${doc.loc}/${doc.name}` : doc.name
+  store.hideDoc(path)
+  const control = connect(controlUrl, {
+    message(ev: MessageEvent) {
+      const res = JSON.parse(ev.data)
+      if ('error' in res) {
+        console.error('Delete failed', res.error)
+        store.unhideDoc(path)
+        store.showToast(res.error.message || 'Delete failed')
+      } else if (res.status === 'ack') {
+        store.showToast(`🗑️ Deleted ${doc.name}`)
+        control.close()
+      }
+    }
+  })
+  control.onopen = () => {
+    control.send(JSON.stringify({ op: 'rm', sel: [path] }))
+  }
+}
+
 const contextMenu = (ev: MouseEvent, doc: Doc) => {
   store.cursor = doc.key
-  ContextMenu.showContextMenu({
-    x: ev.x, y: ev.y, items: [
-      { label: 'Rename', onClick: () => { editing.value = doc } },
-    ],
-  })
+  const items = [
+    { label: '📥 Download', onClick: () => downloadFile(doc) },
+    { label: '🔗 Copy Link', onClick: () => copyLink(doc) },
+  ]
+  if (doc.img) items.push({ label: '📋 Copy Image', onClick: () => copyImage(doc) })
+  items.push(
+    { label: '✏️ Rename', onClick: () => { editing.value = doc } },
+    { label: '🗑️ Delete', onClick: () => deleteFile(doc) },
+  )
+  ContextMenu.showContextMenu({ x: ev.x, y: ev.y, items })
 }
 </script>
 
@@ -254,13 +335,12 @@ const contextMenu = (ev: MouseEvent, doc: Doc) => {
   display: grid;
   gap: .5em;
   grid-template-columns: repeat(auto-fill, minmax(15em, 1fr));
-  grid-template-rows: repeat(minmax(auto, 15em));
   align-items: end;
 }
-.breadcrumb {
-  border-radius: .5em 0 0 .5em;
+.folder-indicator {
+  grid-column: 1 / -1;
 }
-.spacer {
-  flex: 0 1000000000 4rem;
+.folder-start {
+  grid-column-start: 1;
 }
 </style>

frontend/src/components/GalleryFigure.vue

@@ -1,9 +1,12 @@
 <template>
   <a :id="`file-${doc.key}`" :href=doc.url tabindex=-1
-    :class="{ file: !doc.dir, folder: doc.dir, cursor: store.cursor === doc.key }"
+    :class="{ file: !doc.dir, folder: doc.dir, cursor: store.cursor === doc.key, ghost: doc.ghost }"
     @contextmenu.stop
     @focus.stop="store.cursor = doc.key"
     @click=onclick
+    @mouseenter="tooltip?.startHover"
+    @mousemove="tooltip?.updatePosition"
+    @mouseleave="tooltip?.endHover"
   >
     <figure>
       <slot></slot>
@@ -15,19 +18,24 @@
         </template>
         <template v-else>
           <SelectBox :doc=doc @click="store.cursor = doc.key"/>
-          <span :title="doc.name + '\n' + doc.modified + '\n' + doc.sizedisp">{{ doc.name }}</span>
+          <span>{{ doc.name }}</span>
           <div class=namespacer></div>
         </template>
       </figcaption>
     </figure>
+    <CursorTooltip ref="tooltip" :text="tooltipText">
+      <div class="tooltip-name">{{ doc.name }}</div>
+      <div class="tooltip-details">{{ doc.modified }} — {{ doc.sizedisp }}</div>
+    </CursorTooltip>
   </a>
 </template>
 
 <script setup lang=ts>
-import { ref } from 'vue'
+import { ref, computed } from 'vue'
 import { useMainStore } from '@/stores/main'
 import { Doc } from '@/repositories/Document'
 import MediaPreview from '@/components/MediaPreview.vue'
+import CursorTooltip from './CursorTooltip.vue'
 
 const store = useMainStore()
 type EditingProp = {
@@ -40,6 +48,9 @@ const props = defineProps<{
   editing?: EditingProp,
 }>()
 const m = ref<typeof MediaPreview | null>(null)
+const tooltip = ref<InstanceType<typeof CursorTooltip> | null>(null)
+
+const tooltipText = computed(() => props.doc.key)
 
 const onclick = (ev: Event) => {
   if (m.value!.play()) ev.preventDefault()
@@ -48,6 +59,13 @@ const onclick = (ev: Event) => {
 </script>
 
 <style scoped>
+.tooltip-name {
+  font-weight: 600;
+  text-align: center;
+}
+.tooltip-details {
+  text-align: center;
+}
 figure {
   max-height: 15em;
   position: relative;
@@ -57,12 +75,15 @@ figure {
   display: flex;
   flex-direction: column;
   align-items: center;
-  justify-content: end;
+  justify-content: center;
   overflow: hidden;
 }
 figure > article {
   flex: 0 0 auto;
 }
+figure :deep(.video-container) {
+  height: 15em;
+}
 .titlespacer {
   flex-shrink: 100000;
   width: 100%;

frontend/src/components/HeaderMain.vue

@@ -1,83 +1,215 @@
 <template>
   <nav class="headermain buttons">
-    <template v-if="store.error">
-      <div class="error-message" @click="store.error = ''">{{ store.error }}</div>
-      <div class="smallgap"></div>
-    </template>
     <UploadButton :path="props.path" />
     <SvgButton
       name="create-folder"
-      data-tooltip="New folder"
-      @click="() => {  console.log('New', store.fileExplorer); store.fileExplorer!.newFolder(); console.log('Done')}"
+      tooltip="New folder"
+      @click="() => { store.fileExplorer!.newFolder() }"
     />
-    <slot></slot>
-    <div class="spacer smallgap"></div>
-    <template v-if="showSearchInput">
+    <div class="smallgap"></div>
+    <SvgButton name="eye" @click="store.prefs.gallery = !store.prefs.gallery" tooltip="Details/Gallery" />
+    <div class="search-group">
+      <SvgButton name="find" @click="focusSearch" tooltip="Search" />
       <input
         ref="search"
         type="search"
         :value="query"
         @input="updateSearch"
-        placeholder="Find files"
-        class="margin-input"
+        @keydown.escape="clearSearch"
       />
-    </template>
-    <SvgButton ref="searchButton" name="find" @click.prevent="toggleSearchInput" />
-    <SvgButton name="eye" @click="store.prefs.gallery = !store.prefs.gallery" />
+      <span v-if="!query" class="search-hint" @click="focusSearch">/</span>
+    </div>
+    <div class="spacer smallgap"></div>
+    <div v-if="store.space.disk" class="disk-space"
+      @mouseenter="diskTooltip?.startHover"
+      @mousemove="diskTooltip?.updatePosition"
+      @mouseleave="diskTooltip?.endHover"
+    >
+      <svg viewBox="0 0 32 32" class="pie-mini">
+        <!-- Base: 'other' usage (light purple - appears on left, before 12 o'clock) -->
+        <circle r="16" cx="16" cy="16" fill="#c8e" />
+        <!-- Middle ring: free space (dynamic color - appears at bottom) -->
+        <circle r="8" cx="16" cy="16" fill="transparent" :stroke="freeColor" stroke-width="16" :stroke-dasharray="pieFree" :stroke-dashoffset="pieFreeOffset" transform="rotate(-90 16 16)" />
+        <!-- Top ring: storage (deep purple - appears on right after 12 o'clock) -->
+        <circle r="8" cx="16" cy="16" fill="transparent" stroke="#82d" stroke-width="16" :stroke-dasharray="pieStorage" transform="rotate(-90 16 16)" />
+        <!-- Subtle inner circle for depth -->
+        <circle r="2" cx="16" cy="16" fill="rgba(255,255,255,0.2)" />
+      </svg>
+      <CursorTooltip ref="diskTooltip" text="Disk space">
+        <div class="disk-tooltip">
+          <svg viewBox="0 0 160 80" width="160" height="80" class="pie-tooltip">
+            <!-- Pie chart centered at 40,40 -->
+            <circle r="32" cx="40" cy="40" fill="#c8e" />
+            <circle r="16" cx="40" cy="40" fill="transparent" :stroke="freeColor" stroke-width="32" :stroke-dasharray="pieFreeLg" :stroke-dashoffset="pieFreeOffsetLg" transform="rotate(-90 40 40)" />
+            <circle r="16" cx="40" cy="40" fill="transparent" stroke="#82d" stroke-width="32" :stroke-dasharray="pieStorageLg" transform="rotate(-90 40 40)" />
+            <circle r="4" cx="40" cy="40" fill="rgba(255,255,255,0.25)" />
+            <!-- Labels on the right -->
+            <rect x="78" y="10" width="10" height="10" fill="#82d" rx="2"/>
+            <text x="92" y="19" class="pie-label">{{ formatSize(store.space.storage) }} stored</text>
+            <rect x="78" y="30" width="10" height="10" fill="#c8e" rx="2"/>
+            <text x="92" y="39" class="pie-label">{{ formatSize(store.space.usage - store.space.storage) }} other</text>
+            <rect x="78" y="50" width="10" height="10" :fill="freeColor" rx="2"/>
+            <text x="92" y="59" class="pie-label">{{ formatSize(store.space.free) }} free</text>
+          </svg>
+        </div>
+      </CursorTooltip>
+    </div>
     <SvgButton name="cog" @click="settingsMenu" />
   </nav>
 </template>
 
 <script setup lang="ts">
 import { useMainStore } from '@/stores/main'
-import { ref, nextTick, watchEffect } from 'vue'
+import { useSsoAuthStore } from '@/stores/ssoAuth'
+import { ref, nextTick, watchEffect, computed } from 'vue'
 import ContextMenu from '@imengyu/vue3-context-menu'
+import { showAuthIframe } from 'paskia'
+import { resumeWatching } from '@/repositories/WS'
 import router from '@/router';
+import { formatSize } from '@/utils'
+import CursorTooltip from './CursorTooltip.vue'
 
 const store = useMainStore()
-const showSearchInput = ref<boolean>(false)
+const ssoStore = useSsoAuthStore()
 const search = ref<HTMLInputElement | null>()
-const searchButton = ref<HTMLButtonElement | null>()
+const diskTooltip = ref<InstanceType<typeof CursorTooltip> | null>(null)
+
+const CIRC = 50.27  // 2π×8
+
+// Storage segment (starts at top, -90°)
+const pieStorage = computed(() => {
+  const s = store.space
+  if (!s.disk) return `0 ${CIRC}`
+  const pct = s.storage / s.disk
+  return `${pct * CIRC} ${CIRC}`
+})
+
+// Free segment (starts after storage, goes clockwise to bottom area)
+const pieFree = computed(() => {
+  const s = store.space
+  if (!s.disk) return `0 ${CIRC}`
+  const pct = s.free / s.disk
+  return `${pct * CIRC} ${CIRC}`
+})
+
+const pieFreeOffset = computed(() => {
+  const s = store.space
+  if (!s.disk) return 0
+  // Start after storage segment
+  const storagePct = s.storage / s.disk
+  return -storagePct * CIRC
+})
+
+// Free space color: green when plenty, yellow when moderate, red when low
+const freeColor = computed(() => {
+  const s = store.space
+  if (!s.disk) return '#6c6'
+  const freePct = s.free / s.disk
+  if (freePct > 0.25) return '#5b5'  // Green: > 25% free
+  if (freePct > 0.10) return '#db3'  // Yellow: 10-25% free
+  return '#d44'  // Red: < 10% free
+})
+
+// Large pie for tooltip (circumference = 2π×16 ≈ 100.53)
+const CIRC_LG = 100.53
+const pieStorageLg = computed(() => {
+  const s = store.space
+  if (!s.disk) return `0 ${CIRC_LG}`
+  return `${(s.storage / s.disk) * CIRC_LG} ${CIRC_LG}`
+})
+const pieFreeLg = computed(() => {
+  const s = store.space
+  if (!s.disk) return `0 ${CIRC_LG}`
+  return `${(s.free / s.disk) * CIRC_LG} ${CIRC_LG}`
+})
+const pieFreeOffsetLg = computed(() => {
+  const s = store.space
+  if (!s.disk) return 0
+  return -(s.storage / s.disk) * CIRC_LG
+})
+
   const props = defineProps<{
   path: Array<string>
   query: string
 }>()
 
-const closeSearch = (ev: Event) => {
-  if (!showSearchInput.value) return  // Already closing
-  showSearchInput.value = false
+const clearSearch = (ev: Event) => {
+  const input = search.value
+  if (input) {
+    input.value = ''
+    updateSearch(ev)
+  }
   const breadcrumb = document.querySelector('.breadcrumb') as HTMLElement
   breadcrumb.focus()
-  updateSearch(ev)
 }
+
+const focusSearch = () => {
+  search.value?.focus()
+}
+
+// Track pending route update
+let pendingRouteUpdate: number | null = null
+
 const updateSearch = (ev: Event) => {
   const q = (ev.target as HTMLInputElement).value
-  let p = props.path.join('/')
-  p = p ? `/${p}` : ''
-  const url = q ? `${p}//${q}` : (p || '/')
-  const u = url.replaceAll('?', '%3F').replaceAll('#', '%23')
-  if (!props.query && q) router.push(u)
-  else router.replace(u)
-}
-const toggleSearchInput = (ev: Event) => {
-  showSearchInput.value = !showSearchInput.value
-  if (!showSearchInput.value) return closeSearch(ev)
-  nextTick(() => {
-    const input = search.value
-    if (input) input.focus()
+  const loc = props.path.join('/')
+
+  // Start search immediately via store (worker handles it async)
+  store.search(q, loc)
+
+  // Cancel any pending route update
+  if (pendingRouteUpdate !== null) {
+    cancelAnimationFrame(pendingRouteUpdate)
+  }
+
+  // Schedule route update - will be cancelled if user types again
+  pendingRouteUpdate = requestAnimationFrame(() => {
+    pendingRouteUpdate = null
+    let p = loc
+    p = p ? `/${p}` : ''
+    const url = q ? `${p}//${q}` : (p || '/')
+    const u = url.replaceAll('?', '%3F').replaceAll('#', '%23')
+    // Use replace to avoid building up history for each keystroke
+    router.replace(u)
   })
 }
-watchEffect(() => {
-  if (props.query) showSearchInput.value = true
-})
+
+const toggleSearchInput = () => {
+  search.value?.focus()
+}
 const settingsMenu = (e: Event) => {
   // show the context menu
   const items = []
-  items.push({ label: 'Settings', onClick: () => { store.dialog = 'settings' }})
+
+  // For external auth, show user name as link to /auth/
+  if (ssoStore.isExternalAuth && store.user.isLoggedIn) {
+    items.push({
+      label: '👤 ' + (store.user.username || 'User Account'),
+      onClick: () => { window.location.href = '/auth/' }
+    })
+  }
+
+  // Only show password change for non-SSO users
+  if (!ssoStore.isExternalAuth && store.user.isLoggedIn) {
+    items.push({ label: '🔑 Change Password', onClick: () => { store.dialog = 'settings' }})
+  }
+
+  if (store.user.privileged) {
+    items.push({ label: '⚙️ Admin Settings', onClick: () => { store.dialog = 'usermgmt' }})
+  }
+
   if (store.user.isLoggedIn) {
-    items.push({ label: `Logout ${store.user.username ?? ''}`, onClick: () => store.logout() })
-  } else {
-    items.push({ label: 'Login', onClick: () => store.loginDialog() })
+    items.push({ label: '🚪 Logout', onClick: () => store.logout() })
+  } else if (store.server.public) {
+    // Show login option only in public mode (non-public modes trigger auth automatically)
+    items.push({ label: '🔐 Login', onClick: async () => {
+      try {
+        await showAuthIframe('/auth/restricted#theme=light')
+        resumeWatching()
+      } catch (e) {
+        console.log('Login cancelled')
+      }
+    }})
   }
   ContextMenu.showContextMenu({
     // @ts-ignore
@@ -87,7 +219,7 @@ const settingsMenu = (e: Event) => {
 }
 defineExpose({
   toggleSearchInput,
-  closeSearch,
+  clearSearch,
 })
 </script>
 
@@ -99,12 +231,72 @@ defineExpose({
   align-items: center;
   z-index: 10;
 }
-input[type='search'] {
-  background: var(--input-background);
-  color: var(--input-color);
-  border: 0;
-  border-radius: 0.1em;
+.search-group {
+  position: relative;
+  display: flex;
+  align-items: center;
+  background: rgba(255, 255, 255, 0.1);
+  border-radius: 1.5em;
+  padding: 0 0.3em;
+  transition: background 0.2s ease;
+  flex: 1 1 auto;
+  min-width: 5.5em;
+  max-width: 20em;
+}
+.search-group:focus-within {
+  background: rgba(255, 255, 255, 0.2);
+}
+.search-group:focus-within .search-hint {
+  opacity: 0;
+  pointer-events: none;
+}
+.search-group :deep(.action-button) {
+  width: 2.2em;
+  height: 2.2em;
+  flex-shrink: 0;
+}
+.search-group input[type='search'] {
+  background: transparent;
+  color: var(--header-color);
+  border: none;
   outline: none;
-  max-width: 15ch;
+  padding: 0.2em 0.5em 0.2em 0;
+  font-size: var(--header-font-size);
+  flex: 1 1 3em;
+  min-width: 3em;
+}
+.search-hint {
+  position: absolute;
+  right: 0.5em;
+  font-family: system-ui, sans-serif;
+  font-size: 1em;
+  font-weight: 700;
+  color: #333;
+  background: #ccc;
+  border: 1px solid #999;
+  border-radius: 0.3em;
+  padding: 0 0.45em;
+  line-height: 1.4;
+  cursor: pointer;
+  transition: opacity 0.15s ease;
+}
+.disk-space {
+  display: flex;
+  align-items: center;
+  cursor: default;
+}
+.pie-mini {
+  width: 1.4em;
+  height: 1.4em;
+}
+.disk-tooltip {
+  line-height: 1.5;
+}
+.pie-tooltip {
+  display: block;
+}
+.pie-tooltip .pie-label {
+  fill: #fff;
+  font-size: 9px;
 }
 </style>

frontend/src/components/HeaderSelected.vue

@@ -1,19 +1,27 @@
 <template>
-  <template v-if="store.selected.size">
-    <div class="smallgap"></div>
-    <p class="select-text">{{ store.selected.size }} selected ➤</p>
+  <div class="selection-bar" v-if="store.selected.size">
+    <p class="select-text">{{ store.selected.size }} selected</p>
     <DownloadButton />
-    <SvgButton name="copy" data-tooltip="Copy here" @click="op('cp', dst)" />
-    <SvgButton name="paste" data-tooltip="Move here" @click="op('mv', dst)" />
-    <SvgButton name="trash" data-tooltip="Delete ⚠️" @click="op('rm')" />
-    <button class="action-button unselect" data-tooltip="Unselect all" @click="store.selected.clear()">❌</button>
-  </template>
+    <SvgButton name="copy" tooltip="Copy here" @click="op('cp', dst)" />
+    <SvgButton name="paste" tooltip="Move here" @click="op('mv', dst)" />
+    <SvgButton name="trash" tooltip="Delete ⚠️" @click="op('rm')" />
+    <button
+      class="action-button unselect"
+      @click="store.selected.clear()"
+      @mouseenter="unselectTooltip?.startHover"
+      @mousemove="unselectTooltip?.updatePosition"
+      @mouseleave="unselectTooltip?.endHover"
+    >❌<CursorTooltip ref="unselectTooltip" text="Unselect all">Unselect all</CursorTooltip></button>
+  </div>
 </template>
 
 <script setup lang="ts">
 import {connect, controlUrl} from '@/repositories/WS'
 import { useMainStore } from '@/stores/main'
-import { computed } from 'vue'
+import { computed, ref } from 'vue'
+import CursorTooltip from './CursorTooltip.vue'
+
+const unselectTooltip = ref<InstanceType<typeof CursorTooltip> | null>(null)
 
 const store = useMainStore()
 const props = defineProps({
@@ -21,23 +29,32 @@ const props = defineProps({
 })
 
 const dst = computed(() => props.path!.join('/'))
-const op = (op: string, dst?: string) => {
+const op = (opName: string, dst?: string) => {
   const sel = store.selectedFiles
+  const paths = sel.keys.map(key => {
+    const doc = sel.docs[key]!
+    return doc.loc ? `${doc.loc}/${doc.name}` : doc.name
+  })
   const msg = {
-    op,
-    sel: sel.keys.map(key => {
-      const doc = sel.docs[key]
-      return doc.loc ? `${doc.loc}/${doc.name}` : doc.name
-    })
+    op: opName,
+    sel: paths
   }
   // @ts-ignore
   if (dst !== undefined) msg.dst = dst
+  // Hide items being deleted or moved (optimistic update)
+  if (opName === 'rm' || opName === 'mv') {
+    for (const path of paths) store.hideDoc(path)
+  }
   const control = connect(controlUrl, {
     message(ev: MessageEvent) {
       const res = JSON.parse(ev.data)
       if ('error' in res) {
         console.error('Control socket error', msg, res.error)
         store.error = res.error.message
+        // Restore hidden items on error
+        if (opName === 'rm' || opName === 'mv') {
+          for (const path of paths) store.unhideDoc(path)
+        }
         return
       } else if (res.status === 'ack') {
         console.log('Control ack OK', res)
@@ -55,11 +72,20 @@ const op = (op: string, dst?: string) => {
 </script>
 
 <style>
+.selection-bar {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 0.3em 0.5em;
+  background: transparent;
+  color: var(--header-color);
+}
 .select-text {
   color: var(--accent-color);
   white-space: nowrap;
   overflow: hidden;
   text-overflow: ellipsis;
   margin: 0;
+  padding-right: 0.5em;
 }
 </style>

frontend/src/components/LoginModal.vue

@@ -1,101 +0,0 @@
-<template>
-  <ModalDialog name="login" title="Authentication required">
-    <form @submit.prevent="login">
-      <div class="login-container">
-        <label for="username">Username:</label>
-        <input
-          id="username"
-          name="username"
-          autocomplete="username"
-          spellcheck="false"
-          autocorrect="off"
-          required
-          v-model="loginForm.username"
-        />
-        <label for="password">Password:</label>
-        <input
-          id="password"
-          name="password"
-          type="password"
-          autocomplete="current-password"
-          spellcheck="false"
-          autocorrect="off"
-          required
-          v-model="loginForm.password"
-        />
-      </div>
-      <h3 class="error-text">
-        {{ loginForm.error || '\u00A0' }}
-      </h3>
-      <div class="dialog-buttons">
-        <div class="spacer"></div>
-        <input id="submit" type="submit" value="Login" class="button-login" />
-      </div>
-    </form>
-  </ModalDialog>
-</template>
-
-<script lang="ts" setup>
-import { reactive, ref } from 'vue'
-import { loginUser } from '@/repositories/User'
-import type { ISimpleError } from '@/repositories/Client'
-import { useMainStore } from '@/stores/main'
-
-const confirmLoading = ref<boolean>(false)
-const store = useMainStore()
-
-const loginForm = reactive({
-  username: '',
-  password: '',
-  error: ''
-})
-
-const login = async () => {
-  try {
-    loginForm.error = ''
-    confirmLoading.value = true
-    const msg = await loginUser(loginForm.username, loginForm.password)
-    store.login(msg.data.username, !!msg.data.privileged)
-  } catch (error) {
-    const httpError = error as ISimpleError
-    loginForm.error = httpError.message || '🛑 Unknown error'
-  } finally {
-    confirmLoading.value = false
-  }
-}
-</script>
-
-<style scoped>
-.login-container {
-  display: grid;
-  gap: 1rem;
-  grid-template-columns: 1fr 2fr;
-  justify-content: center;
-  align-items: center;
-  margin: 1rem 0;
-}
-.dialog-buttons {
-  display: flex;
-  justify-content: space-between;
-  align-items: center;
-}
-.button-login {
-  color: #fff;
-  background: var(--soft-color);
-  cursor: pointer;
-  font-weight: bold;
-  border: 0;
-  border-radius: .5rem;
-  padding: .5rem 2rem;
-  margin-left: auto;
-  transition: all var(--transition-time) linear;
-}
-.button-login:hover, .button-login:focus {
-  background: var(--accent-color);
-  box-shadow: 0 0 .3rem #000;
-}
-.error-text {
-  color: var(--red-color);
-  height: 1em;
-}
-</style>

frontend/src/components/MediaPreview.vue

@@ -2,7 +2,10 @@
   <img v-if=preview() :src="`${doc.previewurl}?${quality}&t=${doc.mtime}`" alt="">
   <img v-else-if=doc.img :src=doc.url alt="">
   <span v-else-if=doc.dir class="folder icon"></span>
-  <video ref=vid v-else-if=video() :src=doc.url :poster=poster preload=none @play=onplay @pause=onpaused @ended=next @seeking=media!.play()></video>
+  <div v-else-if=video() class="video-container">
+    <video ref=vid :src=doc.url :poster=poster preload=none @play=onplay @pause=onpaused @ended=next @seeking=media!.play()></video>
+    <div class="play-overlay"><PlayIcon /></div>
+  </div>
   <div v-else-if=audio() class="audio icon">
     <audio ref=aud :src=doc.url class=icon preload=none @play=onplay @pause=onpaused @ended=next @seeking=media!.play()></audio>
   </div>
@@ -13,6 +16,7 @@
 <script setup lang=ts>
 import { computed, ref } from 'vue'
 import type { Doc } from '@/repositories/Document'
+import { Play as PlayIcon } from '@/assets/svg'
 
 const aud = ref<HTMLAudioElement | null>(null)
 const vid = ref<HTMLVideoElement | null>(null)
@@ -42,7 +46,7 @@ const next = () => {
   let el: HTMLAudioElement | HTMLVideoElement | null = null
   for (const i in medias) {
     if (medias[i] === (fscurrent || media.value)) {
-      el = medias[+i + 1] || medias[0]
+      el = medias[+i + 1] ?? medias[0] ?? null
       break
     }
   }
@@ -165,4 +169,43 @@ img::before {
   filter: grayscale(1);
   content: '❌';
 }
+.video-container {
+  position: relative;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  min-width: 50%;
+  max-width: 100%;
+  max-height: 100%;
+}
+.video-container video {
+  width: 100%;
+  height: 100%;
+  border-radius: calc(.5em / 8);
+  object-fit: contain;
+}
+.play-overlay {
+  position: absolute;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  pointer-events: none;
+  width: 4em;
+  height: 4em;
+  background: rgba(0, 0, 0, 0.2);
+  border-radius: 50%;
+  transition: opacity 0.2s ease, transform 0.2s ease;
+}
+.play-overlay svg {
+  width: 2em;
+  height: 2em;
+  fill: white;
+  margin-left: 0.25em;  /* Visual centering for play triangle */
+}
+.video-container:hover .play-overlay {
+  transform: scale(1.1);
+}
+video[data-playing] + .play-overlay {
+  opacity: 0;
+}
 </style>

frontend/src/components/ModalDialog.vue

@@ -1,25 +1,29 @@
 <template>
-  <dialog v-if="store.dialog === name" ref="dialog" :id=props.name @keydown.escape=close>
-    <h1 v-if="props.title">{{ props.title }}</h1>
-    <div>
-      <slot>
-        Dialog with no content
-        <button @click=close>OK</button>
-      </slot>
+  <div v-if="store.dialog === name" class="modal-overlay" @click.self="close" @keydown.escape="close" tabindex="-1" ref="overlay">
+    <div class="modal-dialog" :id="props.name" ref="dialog">
+      <h1 v-if="props.title">{{ props.title }}</h1>
+      <div class="modal-content">
+        <slot>
+          Dialog with no content
+          <button @click="close">OK</button>
+        </slot>
+      </div>
     </div>
-  </dialog>
+  </div>
 </template>
 
 <script setup lang="ts">
-import { ref, onMounted, watchEffect, nextTick } from 'vue'
+import { ref, watchEffect, nextTick } from 'vue'
 import { useMainStore } from '@/stores/main'
+import { holdGlobalBackdrop, releaseGlobalBackdrop } from 'paskia'
 
-const dialog = ref<HTMLDialogElement | null>(null)
+const overlay = ref<HTMLDivElement | null>(null)
+const dialog = ref<HTMLDivElement | null>(null)
 const store = useMainStore()
 
 const close = () => {
-  dialog.value!.close()
   store.dialog = ''
+  releaseGlobalBackdrop()
 }
 
 const props = defineProps<{
@@ -29,62 +33,247 @@ const props = defineProps<{
 
 const show = () => {
   store.dialog = props.name
-  setTimeout(() => {
-    dialog.value!.showModal()
-    nextTick(() => {
-      const input = dialog.value!.querySelector('input')
-      if (input) input.focus()
-    })
-  }, 0)
+  holdGlobalBackdrop()
+  nextTick(() => {
+    overlay.value?.focus()
+    const input = dialog.value?.querySelector('input')
+    if (input) input.focus()
+  })
 }
 defineExpose({ show, close })
 watchEffect(() => {
-  if (dialog.value) show()
+  if (overlay.value) {
+    overlay.value.focus()
+    const input = dialog.value?.querySelector('input')
+    if (input) input.focus()
+  }
 })
 </script>
 
 <style>
-/* Style for the background */
-dialog::backdrop {
-  content: '';
-  display: block;
+/* ===========================================
+   MODAL DIALOG GLOBAL STYLES
+   Shared styling for all modal dialogs.
+   Login page (auth.py) has matching CSS.
+   =========================================== */
+
+/* Overlay - covers entire viewport */
+.modal-overlay {
   position: fixed;
-  top: 0;
-  left: 0;
-  width: 100%;
-  height: 100%;
-  background: #0008;
-  backdrop-filter: blur(0.4em);
-  z-index: 1000;
+  inset: 0;
+  z-index: 1100;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  /* No backdrop - paskia handles that */
 }
 
-/* Hide the dialog by default */
-dialog[open] {
+/* Dialog container */
+.modal-dialog {
   background: #ddd;
-  color: black;
-  display: block;
+  color: #000;
   border: none;
-  font-size: 1.2rem;
   border-radius: 0.5rem;
-  box-shadow: 0.2rem 0.2rem 1rem #000;
-  padding: 1rem;
-  position: fixed;
-  top: 0;
-  left: 0;
-  z-index: 1001;
+  box-shadow: 0 0 1rem #0008;
+  padding: 0;
+  max-width: 90vw;
+  max-height: 90vh;
+  overflow: auto;
+  font-size: 1rem;
 }
-input {
-  font: inherit;
-}
-dialog[open] > h1 {
-  background: var(--soft-color);
+
+/* Dialog title bar */
+.modal-dialog > h1 {
+  background: #146;
   color: #fff;
   font-size: 1.2rem;
-  margin: -1rem -1rem 0 -1rem;
-  padding: 0.5rem 1rem 0.5rem 1rem;
+  font-weight: normal;
+  margin: 0;
+  padding: 0.5rem 1rem;
+  position: sticky;
+  top: 0;
 }
 
-dialog[open] > div {
-  padding: 1em 0;
+/* Dialog content area */
+.modal-dialog > .modal-content {
+  padding: 1rem;
+}
+
+/* Section headings inside dialog */
+.modal-dialog h3 {
+  font-size: 1rem;
+  font-weight: 600;
+  margin: 1rem 0 0.5rem 0;
+}
+.modal-dialog h3:first-child {
+  margin-top: 0;
+}
+
+/* Links */
+.modal-dialog a {
+  color: #146;
+}
+.modal-dialog a:hover {
+  color: #f80;
+}
+
+/* Form inputs */
+.modal-dialog input[type="text"],
+.modal-dialog input[type="password"],
+.modal-dialog select {
+  font: inherit;
+  font-size: 1rem;
+  padding: 0.5rem;
+  border: 2px solid #888;
+  border-radius: 0.25rem;
+  background: #fff;
+  color: #000;
+  min-width: 12rem;
+}
+
+.modal-dialog input[type="text"]:focus,
+.modal-dialog input[type="password"]:focus,
+.modal-dialog select:focus {
+  outline: none;
+  border-color: #f80;
+}
+
+/* Labels */
+.modal-dialog label {
+  font-size: 1rem;
+}
+
+/* Buttons */
+.modal-dialog button,
+.modal-dialog input[type="submit"],
+.modal-dialog input[type="reset"],
+.modal-dialog .button {
+  font: inherit;
+  font-size: 1rem;
+  padding: 0.5rem 1rem;
+  background: #146;
+  color: #fff;
+  border: none;
+  border-radius: 0.25rem;
+  cursor: pointer;
+}
+
+.modal-dialog button:hover,
+.modal-dialog input[type="submit"]:hover,
+.modal-dialog input[type="reset"]:hover,
+.modal-dialog .button:hover {
+  background: #f80;
+}
+
+.modal-dialog button:disabled,
+.modal-dialog input[type="submit"]:disabled,
+.modal-dialog input[type="reset"]:disabled,
+.modal-dialog .button:disabled {
+  background: #888;
+  cursor: not-allowed;
+}
+
+/* Small button variant */
+.modal-dialog .button.small {
+  padding: 0.25rem 0.5rem;
+  font-size: 0.875rem;
+}
+
+/* Danger button variant */
+.modal-dialog .button.danger {
+  background: #c00;
+}
+.modal-dialog .button.danger:hover:not(:disabled) {
+  background: #f00;
+}
+
+/* Form row layout (label + input side by side) */
+.modal-dialog .form-row {
+  display: grid;
+  grid-template-columns: auto 1fr;
+  gap: 0.5rem 1rem;
+  align-items: center;
+  margin-bottom: 0.5rem;
+}
+
+/* Form grid for multiple label+input pairs */
+.modal-dialog .form-grid {
+  display: grid;
+  grid-template-columns: auto 1fr;
+  gap: 0.5rem 1rem;
+  align-items: center;
+}
+
+/* Dialog button row (footer) */
+.modal-dialog .dialog-buttons {
+  display: flex;
+  justify-content: flex-end;
+  align-items: center;
+  gap: 0.5rem;
+  margin-top: 1rem;
+}
+
+/* Error text */
+.modal-dialog .error-text {
+  color: #c00;
+  font-size: 0.875rem;
+  min-height: 1.2em;
+  margin: 0.5rem 0;
+}
+
+/* Success message */
+.modal-dialog .success-message {
+  background: #f80;
+  color: #000;
+  padding: 0.5rem;
+  border-radius: 0.25rem;
+  margin: 0.5rem 0;
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  font-size: 0.875rem;
+}
+
+/* Data tables inside dialogs */
+.modal-dialog table {
+  width: 100%;
+  border-collapse: collapse;
+  margin: 0.5rem 0;
+  font-size: 1rem;
+}
+
+.modal-dialog th,
+.modal-dialog td {
+  border: 1px solid #888;
+  padding: 0.5rem;
+  text-align: left;
+}
+
+.modal-dialog th {
+  background: #146;
+  color: #fff;
+  font-weight: normal;
+}
+
+.modal-dialog td {
+  background: #fff;
+}
+
+/* Checkbox alignment in tables */
+.modal-dialog td input[type="checkbox"] {
+  margin: 0;
+}
+
+/* Paragraph text */
+.modal-dialog p {
+  margin: 0 0 0.5rem 0;
+  font-size: 1rem;
+}
+
+/* Loading state */
+.modal-dialog .loading {
+  padding: 2rem;
+  text-align: center;
+  color: #666;
 }
 </style>

frontend/src/components/SettingsModal.vue

@@ -3,8 +3,8 @@
     <form>
       <template v-if="store.user.isLoggedIn">
         <h3>Update your authentication</h3>
-        <div class="login-container">
-          <label for="username">New password:</label>
+        <div class="form-grid">
+          <label for="passwordChange">New password:</label>
           <input
             ref="passwordChange"
             id="passwordChange"
@@ -26,9 +26,6 @@
             v-model="form.password"
           />
         </div>
-        <h3 class="error-text">
-          {{ form.error || '\u00A0' }}
-        </h3>
         <div class="dialog-buttons">
           <input id="close" type="reset" value="Close" class="button" @click=close />
           <div class="spacer"></div>
@@ -54,28 +51,26 @@ import { useMainStore } from '@/stores/main'
 
 const confirmLoading = ref<boolean>(false)
 const store = useMainStore()
+
 const passwordChange = ref()
 const password = ref()
 
 const form = reactive({
   passwordChange: '',
-  password: '',
-  error: ''
+  password: ''
 })
 
 const close = () => {
   form.passwordChange = ''
   form.password = ''
-  form.error = ''
   store.dialog = ''
 }
 const submit = async (ev: Event) => {
   ev.preventDefault()
   try {
-    form.error = ''
     if (form.passwordChange) {
       if (!form.password) {
-        form.error = '⚠️ Current password is required'
+        store.showToast('⚠️ Current password is required')
         password.value!.focus()
         return
       }
@@ -84,7 +79,7 @@ const submit = async (ev: Event) => {
     close()
   } catch (error) {
     const httpError = error as ISimpleError
-    form.error = httpError.message || '🛑 Unknown error'
+    store.showToast(httpError.message || '🛑 Unknown error')
   } finally {
     confirmLoading.value = false
   }
@@ -92,36 +87,5 @@ const submit = async (ev: Event) => {
 </script>
 
 <style scoped>
-.login-container {
-  display: grid;
-  gap: 1rem;
-  grid-template-columns: 1fr 2fr;
-  justify-content: center;
-  align-items: center;
-  margin: 1rem 0;
-}
-.dialog-buttons {
-  display: flex;
-  justify-content: space-between;
-  align-items: center;
-}
-.button-login {
-  color: #fff;
-  background: var(--soft-color);
-  cursor: pointer;
-  font-weight: bold;
-  border: 0;
-  border-radius: .5rem;
-  padding: .5rem 2rem;
-  margin-left: auto;
-  transition: all var(--transition-time) linear;
-}
-.button-login:hover, .button-login:focus {
-  background: var(--accent-color);
-  box-shadow: 0 0 .3rem #000;
-}
-.error-text {
-  color: var(--red-color);
-  height: 1em;
-}
+/* Component-specific styles - most styling comes from ModalDialog.vue global styles */
 </style>

frontend/src/components/SvgButton.vue

@@ -1,18 +1,28 @@
 <template>
-  <button class="action-button">
-    <component :is="icon" />
+  <button
+    class="action-button"
+    @mouseenter="tooltip?.startHover"
+    @mousemove="tooltip?.updatePosition"
+    @mouseleave="tooltip?.endHover"
+  >
+    <component :is="icons[name]" />
     <slot></slot>
+    <CursorTooltip v-if="tooltipText" ref="tooltip" :text="tooltipText">{{ tooltipText }}</CursorTooltip>
   </button>
 </template>
 
 <script setup lang="ts">
-import { defineAsyncComponent } from 'vue'
+import { icons, type IconName } from '@/assets/svg'
+import { ref } from 'vue'
+import CursorTooltip from './CursorTooltip.vue'
 
 const props = defineProps<{
-  name: string
+  name: IconName
+  tooltip?: string
 }>()
 
-const icon = defineAsyncComponent(() => import(`@/assets/svg/${props.name}.svg`))
+const tooltip = ref<InstanceType<typeof CursorTooltip> | null>(null)
+const tooltipText = props.tooltip ?? ''
 </script>
 
 <style>

frontend/src/components/TransferBar.vue

@@ -53,15 +53,17 @@ const speeddisp = computed(() => speed.value ? speed.value.toFixed(speed.value <
 <style scoped>
 .transferprogress {
   --bar: var(--accent-color);
-  --nobar: var(--header-background);
+  --nobar: transparent;
   display: flex;
   flex-direction: column;
+  justify-content: center;
   color: var(--primary-color);
   width: 100%;
 }
 .statustext {
   display: flex;
   align-items: center;
+  justify-content: center;
   margin: 0 .5em;
   padding: 0.5rem 0;
 }

frontend/src/components/UploadButton.vue

@@ -3,16 +3,20 @@
     <input ref="fileInput" @change="uploadHandler" type="file" multiple>
     <input ref="folderInput" @change="uploadHandler" type="file" webkitdirectory>
   </template>
-  <SvgButton name="add-file" data-tooltip="Upload files" @click="fileInput.click()" />
-  <SvgButton name="add-folder" data-tooltip="Upload folder" @click="folderInput.click()" />
+  <SvgButton name="add-file" tooltip="Upload files" @click="fileInput.click()" />
+  <SvgButton name="add-folder" tooltip="Upload folder" @click="folderInput.click()" />
 </template>
 
 <script setup lang="ts">
 import { connect, uploadUrl } from '@/repositories/WS';
 import { useMainStore } from '@/stores/main'
+import { getDocuments } from '@/stores/documentStore'
+import { Doc } from '@/repositories/Document'
 import { collator } from '@/utils';
 import { onMounted, onUnmounted, reactive, ref } from 'vue'
+import { useRouter } from 'vue-router'
 
+const router = useRouter()
 const fileInput = ref()
 const folderInput = ref()
 const store = useMainStore()
@@ -72,24 +76,53 @@ function uploadHandler(event: Event) {
 const uploadFiles = (infiles: File[]) => {
   const loc = props.path!.join('/')
   let files = []
+  let folderName = ''
   for (const file of infiles) {
+    const relPath = file.webkitRelativePath || file.name
+    if (!folderName && file.webkitRelativePath) folderName = relPath.split('/')[0] ?? ''
     files.push({
       file,
-      cloudName: loc + '/' + (file.webkitRelativePath || file.name),
+      cloudName: loc + '/' + relPath,
       cloudPos: 0,
     })
   }
   uploadCloudFiles(files)
+  if (folderName) router.push('/' + (loc ? loc + '/' : '') + folderName + '/')
 }
 const uploadCloudFiles = (files: CloudFile[]) => {
   const dotfiles = files.filter(f => f.cloudName.includes('/.'))
   if (dotfiles.length) {
-    store.error = "Won't upload dotfiles"
-    console.log("Dotfiles omitted", dotfiles)
+    store.showToast("Won't upload dotfiles")
     files = files.filter(f => !f.cloudName.includes('/.'))
   }
   if (!files.length) return
   files.sort((a, b) => collator.compare(a.cloudName, b.cloudName))
+  // Optimistic update: ghost folders and files
+  const now = Math.floor(Date.now() / 1000)
+  const docs = getDocuments()
+  const byPath = new Map(docs.map(d => [d.loc ? `${d.loc}/${d.name}` : d.name, d]))
+  // Also check existing ghosts
+  for (const g of store.ghosts) {
+    byPath.set(g.loc ? `${g.loc}/${g.name}` : g.name, g)
+  }
+  const added = new Set<string>()
+  for (const f of files) {
+    const lastSlash = f.cloudName.lastIndexOf('/')
+    const loc = lastSlash > 0 ? f.cloudName.slice(0, lastSlash) : ''
+    const name = f.cloudName.slice(lastSlash + 1)
+    // Ghost folders for intermediate directories
+    const parts = loc.split('/')
+    for (let i = 0; i < parts.length; i++) {
+      const folderPath = parts.slice(0, i + 1).join('/')
+      if (folderPath && !byPath.has(folderPath) && !added.has(folderPath)) {
+        store.addGhost(new Doc({ loc: parts.slice(0, i).join('/'), name: parts[i], key: crypto.randomUUID(), size: 0, mtime: now, dir: true }))
+        added.add(folderPath)
+      }
+    }
+    // Ghost file or update existing (overwrite case doesn't need ghost, file already visible)
+    const existing = byPath.get(f.cloudName)
+    if (!existing) store.addGhost(new Doc({ loc, name, key: crypto.randomUUID(), size: f.file.size, mtime: now, dir: false }))
+  }
   // @ts-ignore
   upqueue = [...upqueue, ...files]
   statsAdd(files)
@@ -205,7 +238,7 @@ const WSCreate = async () => await new Promise<WebSocket>(resolve => {
 const worker = async () => {
   const ws = await WSCreate()
   while (upqueue.length) {
-    const f = upqueue[0]
+    const f = upqueue[0]!
     const start = f.cloudPos
     const end = Math.min(f.file.size, start + (1<<20))
     const control = { name: f.cloudName, size: f.file.size, start, end }

frontend/src/components/UserManagementModal.vue

@@ -0,0 +1,228 @@
+<template>
+  <ModalDialog name=usermgmt title="Admin Settings">
+    <div v-if="loading" class="loading">Loading...</div>
+    <div v-else>
+      <h3>Server Settings</h3>
+      <div class="form-row">
+        <label for="publicAccess">
+          <input
+            type="checkbox"
+            id="publicAccess"
+            v-model="serverSettings.public"
+            @change="updateServerSettings"
+          />
+          Public access (anyone can read and write)
+        </label>
+      </div>
+      <template v-if="store.server.paskia">
+        <h3>User Management</h3>
+        <p>See <a href="/auth/admin/">Paskia Admin</a>.</p>
+      </template>
+      <template v-else>
+        <h3>Users</h3>
+        <button @click="addUser" class="button" title="Add new user">➕ Add User</button>
+        <div v-if="success" class="success-message" @click="copySuccess(false)">
+          {{ success }}
+          <button v-if="success.includes('Password:') || success.includes('New password:')" @click.stop="copySuccess(true)" class="button small" title="Copy to clipboard">{{ copyButtonText }}</button>
+        </div>
+        <table>
+          <thead>
+            <tr>
+              <th>Username</th>
+              <th>Admin</th>
+              <th>Actions</th>
+            </tr>
+          </thead>
+          <tbody>
+            <tr v-for="user in users" :key="user.username">
+              <td>{{ user.username }}</td>
+              <td>
+                <input
+                  type="checkbox"
+                  :checked="user.privileged"
+                  @change="toggleAdmin(user, $event)"
+                  :disabled="user.username === store.user.username"
+                />
+              </td>
+              <td>
+                <button @click="renameUser(user)" class="button small" title="Rename user">✏️</button>
+                <button @click="resetPassword(user)" class="button small" title="Reset password">🔑</button>
+                <button @click="deleteUserAction(user.username)" class="button small danger" :disabled="user.username === store.user.username" title="Delete user">🗑️</button>
+              </td>
+            </tr>
+          </tbody>
+        </table>
+      </template>
+      <div class="dialog-buttons">
+        <button @click="close" class="button">Close</button>
+      </div>
+    </div>
+  </ModalDialog>
+</template>
+
+<script lang="ts" setup>
+import { ref, reactive, onMounted, watch } from 'vue'
+import { listUsers, createUser, updateUser, deleteUser, updatePublic } from '@/repositories/User'
+import type { ISimpleError } from '@/repositories/Client'
+import { useMainStore } from '@/stores/main'
+
+interface User {
+  username: string
+  privileged: boolean
+  lastSeen: number
+}
+
+const store = useMainStore()
+const loading = ref(true)
+const users = ref<User[]>([])
+const success = ref('')
+const copyButtonText = ref('📋')
+const serverSettings = reactive({
+  public: false
+})
+
+const close = () => {
+  store.dialog = ''
+  success.value = ''
+}
+
+const loadUsers = async () => {
+  try {
+    loading.value = true
+    const data = await listUsers()
+    users.value = data.users
+  } catch (e) {
+    const httpError = e as ISimpleError
+    store.showToast(httpError.message || 'Failed to load users')
+  } finally {
+    loading.value = false
+  }
+}
+
+const addUser = async () => {
+  const username = window.prompt('Enter username for new user:')
+  if (!username || !username.trim()) return
+  try {
+    success.value = ''
+    const result = await createUser(username.trim(), undefined, false)
+    await loadUsers()
+    if (result.password) {
+      success.value = `User ${username.trim()} created. Password: ${result.password}`
+    }
+  } catch (e) {
+    const httpError = e as ISimpleError
+    store.showToast(httpError.message || 'Failed to add user')
+  }
+}
+
+const toggleAdmin = async (user: User, event: Event) => {
+  const target = event.target as HTMLInputElement
+  try {
+    await updateUser(user.username, { privileged: target.checked })
+    user.privileged = target.checked
+  } catch (e) {
+    const httpError = e as ISimpleError
+    store.showToast(httpError.message || 'Failed to update user')
+    target.checked = user.privileged // revert
+  }
+}
+
+const renameUser = async (user: User) => {
+  const newName = window.prompt('Enter new username:', user.username)
+  if (!newName || !newName.trim() || newName.trim() === user.username) return
+  // For rename, we need to create new user and delete old, or have a rename endpoint
+  // Since no rename endpoint, perhaps delete and create
+  try {
+    success.value = ''
+    const result = await createUser(newName.trim(), undefined, user.privileged)
+    await deleteUser(user.username)
+    await loadUsers()
+    if (result.password) {
+      success.value = `User renamed to ${newName.trim()}. New password: ${result.password}`
+    }
+  } catch (e) {
+    const httpError = e as ISimpleError
+    store.showToast(httpError.message || 'Failed to rename user')
+  }
+}
+
+const resetPassword = async (user: User) => {
+  if (!confirm(`Reset password for ${user.username}? A new password will be generated.`)) return
+  try {
+    success.value = ''
+    const result = await updateUser(user.username, { password: "" })
+    if (result.password) {
+      success.value = `Password reset for ${user.username}. New password: ${result.password}`
+    }
+  } catch (e) {
+    const httpError = e as ISimpleError
+    store.showToast(httpError.message || 'Failed to reset password')
+  }
+}
+
+const deleteUserAction = async (username: string) => {
+  if (!confirm(`Delete user ${username}?`)) return
+  try {
+    await deleteUser(username)
+    await loadUsers()
+  } catch (e) {
+    const httpError = e as ISimpleError
+    store.showToast(httpError.message || 'Failed to delete user')
+  }
+}
+
+const copySuccess = async (isButtonClick: boolean = false) => {
+  const passwordMatch = success.value.match(/(?:Password|New password): (.+)/)
+  if (passwordMatch) {
+    await navigator.clipboard.writeText(passwordMatch[1]!)
+    if (isButtonClick) {
+      // Show "Copied!" indication on button
+      copyButtonText.value = '✅ Copied!'
+      // Hide password and button immediately after copying
+      const baseMessage = success.value.replace(/(?:Password|New password): .+/, 'Password copied to clipboard!')
+      success.value = baseMessage
+      // Hide the entire message after 3 seconds
+      setTimeout(() => {
+        success.value = ''
+        copyButtonText.value = '📋'
+      }, 3000)
+    } else {
+      // Just hide the message when clicking elsewhere
+      success.value = ''
+    }
+  }
+}
+
+const updateServerSettings = async () => {
+  try {
+    success.value = ''
+    await updatePublic(serverSettings.public)
+    // Update store
+    store.server.public = serverSettings.public
+    success.value = 'Server settings updated'
+  } catch (e) {
+    const httpError = e as ISimpleError
+    store.showToast(httpError.message || 'Failed to update settings')
+  }
+}
+
+onMounted(() => {
+  serverSettings.public = store.server.public || false
+  loading.value = false
+})
+
+// Load users when dialog opens (only in built-in auth mode)
+watch(() => store.dialog, (newVal) => {
+  if (newVal === 'usermgmt' && !store.server.paskia) {
+    loadUsers()
+  }
+})
+
+watch(() => store.server.public, (newVal) => {
+  serverSettings.public = newVal || false
+})
+</script>
+
+<style scoped>
+/* Component-specific styles - most styling comes from ModalDialog.vue global styles */
+</style>

frontend/src/repositories/Client.ts

@@ -1,21 +1,71 @@
+import { apiJson, apiFetch, AuthCancelledError } from 'paskia'
+
+// Type for API error responses
+interface ApiError {
+  error: {
+    code: number
+    message: string
+  }
+}
+
+function hasError(msg: unknown): msg is ApiError {
+  return typeof msg === 'object' && msg !== null && 'error' in msg
+}
+
 class ClientClass {
-  async post(url: string, data?: Record<string, any>): Promise<any> {
-    const res = await fetch(url, {
-      method: 'POST',
-      headers: {
-        accept: 'application/json',
-        'content-type': 'application/json'
-      },
-      body: data !== undefined ? JSON.stringify(data) : undefined
-    })
-    let msg
+  async get(url: string): Promise<any> {
     try {
-      msg = await res.json()
+      const msg = await apiJson(url, { method: 'GET' })
+      if (hasError(msg)) throw new SimpleError(msg.error.code, msg.error.message)
+      return msg
     } catch (e) {
-      throw new SimpleError(res.status, `🛑 ${res.status} ${res.statusText}`)
+      if (e instanceof AuthCancelledError) {
+        throw new SimpleError(401, 'Authentication cancelled')
+      }
+      throw e
+    }
+  }
+  async post(url: string, data?: Record<string, any>): Promise<any> {
+    try {
+      const msg = await apiJson(url, {
+        method: 'POST',
+        body: data
+      })
+      if (hasError(msg)) throw new SimpleError(msg.error.code, msg.error.message)
+      return msg
+    } catch (e) {
+      if (e instanceof AuthCancelledError) {
+        throw new SimpleError(401, 'Authentication cancelled')
+      }
+      throw e
+    }
+  }
+  async put(url: string, data?: Record<string, any>): Promise<any> {
+    try {
+      const msg = await apiJson(url, {
+        method: 'PUT',
+        body: data
+      })
+      if (hasError(msg)) throw new SimpleError(msg.error.code, msg.error.message)
+      return msg
+    } catch (e) {
+      if (e instanceof AuthCancelledError) {
+        throw new SimpleError(401, 'Authentication cancelled')
+      }
+      throw e
+    }
+  }
+  async delete(url: string): Promise<any> {
+    try {
+      const msg = await apiJson(url, { method: 'DELETE' })
+      if (hasError(msg)) throw new SimpleError(msg.error.code, msg.error.message)
+      return msg
+    } catch (e) {
+      if (e instanceof AuthCancelledError) {
+        throw new SimpleError(401, 'Authentication cancelled')
+      }
+      throw e
     }
-    if ('error' in msg) throw new SimpleError(msg.error.code, msg.error.message)
-    return msg
   }
 }
 
@@ -32,4 +82,5 @@ class SimpleError extends Error implements ISimpleError {
   }
 }
 
+export { apiFetch }
 export default Client

frontend/src/repositories/Document.ts

@@ -1,4 +1,4 @@
-import { formatSize, formatUnixDate, haystackFormat } from "@/utils"
+import { formatSize, formatUnixDate } from "@/utils"
 
 export type FUID = string
 
@@ -9,23 +9,30 @@ export type DocProps = {
   size: number
   mtime: number
   dir: boolean
+  ghost?: boolean
+  expires?: number  // Unix timestamp for ghost expiry
 }
 
 export class Doc {
-  private _name: string = ""
   public loc: string = ""
   public key: FUID = ""
   public size: number = 0
   public mtime: number = 0
-  public haystack: string = ""
   public dir: boolean = false
+  public ghost: boolean = false
+  public expires: number = 0  // Unix timestamp for ghost expiry (0 = no expiry)
+  /** @internal Use the name getter/setter instead */
+  public _name: string = ""
 
-  constructor(props: Partial<DocProps> = {}) { Object.assign(this, props) }
+  constructor(props: Partial<DocProps> = {}) {
+    const { name, ...rest } = props
+    Object.assign(this, rest)
+    if (name) this._name = name  // Skip validation/haystack for bulk loading
+  }
   get name() { return this._name }
   set name(name: string) {
     if (name.includes('/') || name.startsWith('.')) throw Error(`Invalid name: ${name}`)
     this._name = name
-    this.haystack = haystackFormat(name)
   }
   get sizedisp(): string { return formatSize(this.size) }
   get modified(): string { return formatUnixDate(this.mtime) }

frontend/src/repositories/User.ts

@@ -1,8 +1,8 @@
 import Client from '@/repositories/Client'
 import { useMainStore } from '@/stores/main'
-export const url_login = '/login'
-export const url_logout = '/logout'
-export const url_password = '/password-change'
+export const url_login = '/auth/login'
+export const url_logout = '/auth/api/logout'
+export const url_password = '/auth/password-change'
 
 export async function loginUser(username: string, password: string) {
   const user = await Client.post(url_login, {
@@ -24,3 +24,34 @@ export async function changePassword(username: string, passwordChange: string, p
   })
   return data
 }
+
+export const url_users = '/auth/users'
+
+export async function listUsers() {
+  const data = await Client.get(url_users)
+  return data
+}
+
+export async function createUser(username: string, password?: string, privileged?: boolean) {
+  const data = await Client.post(url_users, {
+    username,
+    password,
+    privileged
+  })
+  return data
+}
+
+export async function updateUser(username: string, changes: { password?: string, privileged?: boolean }) {
+  const data = await Client.put(`${url_users}/${username}`, changes)
+  return data
+}
+
+export async function deleteUser(username: string) {
+  const data = await Client.delete(`${url_users}/${username}`)
+  return data
+}
+
+export async function updatePublic(isPublic: boolean) {
+  const data = await Client.put('/api/config/public', { public: isPublic })
+  return data
+}

frontend/src/repositories/WS.ts

@@ -1,4 +1,5 @@
 import { useMainStore } from "@/stores/main"
+import { showAuthIframe, AuthCancelledError, isAuthIframeOpen } from 'paskia'
 import type { FileEntry, UpdateEntry, errorEvent } from "./Document"
 
 export const controlUrl = '/api/control'
@@ -8,6 +9,13 @@ export const watchUrl = '/api/watch'
 let tree = [] as FileEntry[]
 let reconnDelay = 500
 let wsWatch = null as WebSocket | null
+// Track when we're awaiting authentication to prevent reconnection loops
+let awaitingAuth = false
+
+// Clear the local tree cache (called on logout/auth failure)
+export const clearTree = () => {
+  tree = []
+}
 
 export const loadSession = () => {
   const s = localStorage['cista-files']
@@ -34,6 +42,44 @@ export const connect = (path: string, handlers: Partial<Record<keyof WebSocketEv
   return webSocket
 }
 
+// Handle auth error from WebSocket - show paskia iframe and reconnect on success
+async function handleWsAuthError(msg: any) {
+  const iframe = msg.error?.auth?.iframe
+  if (iframe) {
+    // Clear sensitive data immediately on auth failure
+    const store = useMainStore()
+    store.clearSensitiveData()
+    clearTree()
+    // Stop reconnection attempts while showing auth dialog
+    awaitingAuth = true
+    store.authInProgress = true
+    store.error = ''  // Clear any connection message
+    if (watchTimeout !== null) {
+      clearTimeout(watchTimeout)
+      watchTimeout = null
+    }
+    try {
+      await showAuthIframe(iframe)
+      // Auth succeeded - reconnect
+      awaitingAuth = false
+      store.authInProgress = false
+      watchConnect()
+    } catch (e) {
+      awaitingAuth = false
+      store.authInProgress = false
+      if (e instanceof AuthCancelledError) {
+        console.log('User cancelled authentication')
+        // Show access denied dialog
+        store.dialog = 'accessdenied'
+      } else {
+        console.error('Auth iframe error:', e)
+      }
+    }
+    return true
+  }
+  return false
+}
+
 export const watchConnect = () => {
   if (watchTimeout !== null) {
     clearTimeout(watchTimeout)
@@ -51,9 +97,9 @@ export const watchConnect = () => {
     if (store.connected) return
     const msg = JSON.parse(event.data)
     if ('error' in msg) {
-      if (msg.error.code === 401) {
-        store.user.isLoggedIn = false
-        store.dialog = 'login'
+      if (msg.error.code === 401 || msg.error.code === 403) {
+        // Show paskia auth iframe (works for both password and paskia modes)
+        handleWsAuthError(msg)
       } else {
         store.error = msg.error.message
       }
@@ -67,7 +113,6 @@ export const watchConnect = () => {
       store.error = ''
       if (msg.user) store.login(msg.user.username, msg.user.privileged)
       else if (store.isUserLogged) store.logout()
-      if (!msg.server.public && !msg.user) store.dialog = 'login'
     }
   })
 }
@@ -78,21 +123,31 @@ export const watchDisconnect = () => {
   wsWatch = null
 }
 
+// Reset auth state and reconnect - call after successful authentication
+export const resumeWatching = () => {
+  awaitingAuth = false
+  if (watchTimeout !== null) {
+    clearTimeout(watchTimeout)
+    watchTimeout = null
+  }
+  watchConnect()
+}
+
 let watchTimeout: any = null
 
 const watchReconnect = (event: MessageEvent) => {
   const store = useMainStore()
+  // Don't reconnect if we're awaiting authentication or auth iframe is showing
+  if (awaitingAuth || isAuthIframeOpen()) {
+    console.log('Skipping reconnect - awaiting authentication')
+    return
+  }
   if (store.connected) {
     console.warn("Disconnected from server", event)
     store.connected = false
     store.error = 'Reconnecting...'
   }
   if (watchTimeout !== null) clearTimeout(watchTimeout)
-  // Don't hammer the server while on login dialog
-  if (store.dialog === 'login') {
-    watchTimeout = setTimeout(watchReconnect, 100)
-    return
-  }
   reconnDelay = Math.min(5000, reconnDelay + 500)
   // The server closes the websocket after errors, so we need to reopen it
   watchTimeout = setTimeout(watchConnect, reconnDelay)
@@ -109,7 +164,8 @@ const handleWatchMessage = (event: MessageEvent) => {
       handleUpdateMessage(msg)
       break
     case !!msg.space:
-      console.log('Watch space', msg.space)
+      const store = useMainStore()
+      store.space = msg.space
       break
     case !!msg.error:
       handleError(msg)
@@ -152,9 +208,9 @@ function handleUpdateMessage(updateData: { update: UpdateEntry[] }) {
 
 function handleError(msg: errorEvent) {
   const store = useMainStore()
-  if (msg.error.code === 401) {
-    store.user.isLoggedIn = false
-    store.dialog = 'login'
+  if (msg.error.code === 401 || msg.error.code === 403) {
+    // Show paskia auth iframe (works for both password and paskia modes)
+    handleWsAuthError(msg as any)
     return
   }
 }

frontend/src/stores/documentStore.ts

@@ -0,0 +1,33 @@
+// Non-reactive document storage for the full file list
+// This avoids Vue reactivity overhead on large arrays
+
+import type { Doc } from '@/repositories/Document'
+import { shallowRef, triggerRef } from 'vue'
+
+// The main document list - shallowRef means only the reference is reactive, not the contents
+const documents = shallowRef<Doc[]>([])
+
+// Version counter for manual reactivity triggering
+let version = 0
+
+export function getDocuments(): Doc[] {
+  return documents.value
+}
+
+export function setDocuments(docs: Doc[]): void {
+  documents.value = docs
+  version++
+}
+
+export function getVersion(): number {
+  return version
+}
+
+// Trigger reactivity manually (e.g., after modifications)
+export function triggerUpdate(): void {
+  version++
+  triggerRef(documents)
+}
+
+// For computed dependencies that need to react to document changes
+export const documentRef = documents

frontend/src/stores/main.ts

@@ -2,23 +2,85 @@ import type { FileEntry, FUID, SelectedItems } from '@/repositories/Document'
 import { Doc } from '@/repositories/Document'
 import { defineStore, type StateTree } from 'pinia'
 import { collator } from '@/utils'
-import { logoutUser } from '@/repositories/User'
-import { watchConnect } from '@/repositories/WS'
-import { shallowRef } from 'vue'
+import { watchConnect, resumeWatching } from '@/repositories/WS'
 import { sorted, type SortOrder } from '@/utils/docsort'
+import SearchWorker from '@/workers/searchWorker?worker'
+import { getDocuments, setDocuments, documentRef } from './documentStore'
 
-export const useMainStore = defineStore({
-  id: 'main',
+// Singleton search worker instance
+let searchWorker: Worker | null = null
+let searchId = 0
+let searchStore: ReturnType<typeof useMainStore> | null = null
+let loadingTimer: ReturnType<typeof setTimeout> | null = null
+let clearOldResultsTimer: ReturnType<typeof setTimeout> | null = null
+let lastResultUpdate = 0
+
+function getSearchWorker(): Worker {
+  if (!searchWorker) {
+    searchWorker = new SearchWorker()
+    // Set up message handler once
+    searchWorker.onmessage = (e) => {
+      if (!searchStore || e.data.id !== searchId) return  // Stale result
+
+      // Convert plain data back to Doc instances
+      const docs = e.data.docs.map((d: any) => new Doc(d))
+
+      // Cancel the clear-old-results timer since we have new results
+      if (clearOldResultsTimer) {
+        clearTimeout(clearOldResultsTimer)
+        clearOldResultsTimer = null
+      }
+
+      // Throttle rapid intermediate updates to reduce UI flicker
+      const now = performance.now()
+      if (!e.data.done && now - lastResultUpdate < 50) {
+        return  // Skip intermediate update if too recent
+      }
+      lastResultUpdate = now
+
+      searchStore.searchResults = docs
+
+      if (e.data.done) {
+        // Clear the loading timer and hide spinner
+        if (loadingTimer) {
+          clearTimeout(loadingTimer)
+          loadingTimer = null
+        }
+        searchStore.searchLoading = false
+      }
+    }
+  }
+  return searchWorker
+}
+
+// Ghost expiry time in seconds
+const GHOST_TTL = 30
+
+// Periodic cleanup interval
+let cleanupInterval: ReturnType<typeof setInterval> | null = null
+
+export const useMainStore = defineStore('main', {
   state: () => ({
-    document: shallowRef<Doc[]>([]),
+    // Ghosts are temporary optimistic-update files/folders shown until server confirms
+    ghosts: [] as Doc[],
+    // Hidden paths for optimistic delete (path -> expiry timestamp)
+    hiddenPaths: new Map<string, number>(),
+    // Version counter to trigger reactivity when external document list changes
+    docVersion: 0,
     selected: new Set<FUID>([]),
     query: '' as string,
+    searchResults: [] as Doc[],
+    searchLoading: false,
+    _searchRouteTimer: null as ReturnType<typeof setTimeout> | null,
     fileExplorer: null as any,
-    error: '' as string,
+    error: '' as string,  // Permanent status message (e.g., "Reconnecting...")
+    toast: '' as string,  // Temporary toast (auto-dismisses)
+    toastTimeout: null as ReturnType<typeof setTimeout> | null,
     connected: false,
+    authInProgress: false,
     cursor: '' as string,
-    server: {} as Record<string, any>,
-    dialog: '' as '' | 'login' | 'settings',
+    server: {} as Record<string, any> & { public?: boolean, paskia?: boolean },
+    dialog: '' as '' | 'settings' | 'usermgmt' | 'accessdenied',
     uprogress: {} as any,
     dprogress: {} as any,
     prefs: {
@@ -30,10 +92,16 @@ export const useMainStore = defineStore({
       username: '' as string,
       privileged: false as boolean,
       isLoggedIn: false as boolean,
+    },
+    space: {
+      disk: 0,
+      free: 0,
+      usage: 0,
+      storage: 0,
     }
   }),
   persist: {
-    paths: ['prefs', 'cursor', 'selected'],
+    pick: ['prefs', 'cursor', 'selected'],
     serializer: {
       deserialize: (data: string): StateTree => {
         const ret = JSON.parse(data)
@@ -62,32 +130,203 @@ export const useMainStore = defineStore({
         }))
         loc.push(name)
       }
-      this.document = docs
+      // Store in non-reactive external storage
+      setDocuments(docs)
+      // Clear ghosts that now exist in the real list
+      const realPaths = new Set(docs.map(d => d.loc ? `${d.loc}/${d.name}` : d.name))
+      this.ghosts = this.ghosts.filter(g => !realPaths.has(g.loc ? `${g.loc}/${g.name}` : g.name))
+      // Clear hidden paths that no longer exist (deletion confirmed)
+      for (const path of this.hiddenPaths.keys()) {
+        if (!realPaths.has(path)) this.hiddenPaths.delete(path)
+      }
+      // Start cleanup timer if not running
+      this.startCleanupTimer()
+      // Bump version to trigger reactive updates
+      this.docVersion++
+      // Sync documents to search worker
+      this.syncSearchWorker()
+    },
+    /** Add a ghost file/folder for optimistic UI updates */
+    addGhost(doc: Doc) {
+      doc.ghost = true
+      doc.expires = Math.floor(Date.now() / 1000) + GHOST_TTL
+      this.ghosts.push(doc)
+    },
+    /** Clear all ghosts (e.g., on navigation or refresh) */
+    clearGhosts() {
+      this.ghosts = []
+    },
+    /** Hide a document path (optimistic delete) */
+    hideDoc(path: string) {
+      this.hiddenPaths.set(path, Math.floor(Date.now() / 1000) + GHOST_TTL)
+    },
+    /** Unhide a document path (delete failed, restore visibility) */
+    unhideDoc(path: string) {
+      this.hiddenPaths.delete(path)
+    },
+    /** Start the periodic cleanup timer */
+    startCleanupTimer() {
+      if (cleanupInterval) return
+      cleanupInterval = setInterval(() => this.cleanupExpired(), 5000)
+    },
+    /** Stop the cleanup timer */
+    stopCleanupTimer() {
+      if (cleanupInterval) {
+        clearInterval(cleanupInterval)
+        cleanupInterval = null
+      }
+    },
+    /** Remove expired ghosts and hidden paths */
+    cleanupExpired() {
+      const now = Math.floor(Date.now() / 1000)
+      const ghostsBefore = this.ghosts.length
+      const hiddenBefore = this.hiddenPaths.size
+      this.ghosts = this.ghosts.filter(g => g.expires > now)
+      for (const [path, expires] of this.hiddenPaths) {
+        if (expires <= now) this.hiddenPaths.delete(path)
+      }
+      // Stop timer if nothing to clean up
+      if (this.ghosts.length === 0 && this.hiddenPaths.size === 0) {
+        this.stopCleanupTimer()
+      }
+    },
+    /** Show a temporary toast message that auto-dismisses */
+    showToast(message: string, duration = 3000) {
+      if (this.toastTimeout) {
+        clearTimeout(this.toastTimeout)
+        this.toastTimeout = null
+      }
+      this.toast = message
+      this.toastTimeout = setTimeout(() => {
+        this.toast = ''
+        this.toastTimeout = null
+      }, duration)
+    },
+    /** Clear the current toast immediately */
+    clearToast() {
+      if (this.toastTimeout) {
+        clearTimeout(this.toastTimeout)
+        this.toastTimeout = null
+      }
+      this.toast = ''
+    },
+    syncSearchWorker() {
+      const worker = getSearchWorker()
+      // Send plain data to worker (no class instances)
+      const docs = getDocuments()
+      const docData = docs.map(doc => ({
+        loc: doc.loc,
+        name: doc.name,
+        key: doc.key,
+        size: doc.size,
+        mtime: doc.mtime,
+        dir: doc.dir,
+      }))
+      worker.postMessage({ type: 'update', documents: docData })
+    },
+    search(query: string, loc: string) {
+      const worker = getSearchWorker()
+      const id = ++searchId
+      searchStore = this  // Store reference for worker callback
+
+      // Update query immediately so watchers know we're handling this
+      this.query = query
+
+      // Cancel pending timers
+      if (loadingTimer) {
+        clearTimeout(loadingTimer)
+        loadingTimer = null
+      }
+      if (clearOldResultsTimer) {
+        clearTimeout(clearOldResultsTimer)
+        clearOldResultsTimer = null
+      }
+
+      if (!query) {
+        // Clear results only when search is closed
+        this.searchResults = []
+        this.searchLoading = false
+        return
+      }
+
+      // Keep old results briefly to avoid flicker on fast cached searches
+      // But clear them after 50ms if no new results have arrived
+      clearOldResultsTimer = setTimeout(() => {
+        if (searchId === id) {
+          this.searchResults = []
+        }
+        clearOldResultsTimer = null
+      }, 50)
+
+      // Delay showing loading indicator to avoid flicker on fast searches
+      loadingTimer = setTimeout(() => {
+        if (searchId === id) {  // Still the current search
+          this.searchLoading = true
+        }
+        loadingTimer = null
+      }, 100)
+
+      worker.postMessage({ type: 'search', query, loc, id })
     },
     login(username: string, privileged: boolean) {
       this.user.username = username
       this.user.privileged = privileged
       this.user.isLoggedIn = true
       this.dialog = ''
-      if (!this.connected) watchConnect()
+      if (!this.connected) resumeWatching()
     },
-    loginDialog() {
-      this.dialog = 'login'
+    clearSensitiveData() {
+      // Clear all sensitive state on logout or auth failure
+      localStorage.removeItem('cista-files')
+      setDocuments([])
+      this.ghosts = []
+      this.hiddenPaths.clear()
+      this.stopCleanupTimer()
+      this.docVersion++
+      this.selected.clear()
+      this.user.username = ''
+      this.user.privileged = false
+      this.user.isLoggedIn = false
+      this.connected = false
+      this.dialog = ''
+      this.cursor = ''
     },
     async logout() {
       console.log("Logout")
-      await logoutUser()
-      this.$reset()
-      localStorage.clear()
-      history.go() // Reload page
+      try {
+        const res = await fetch('/auth/api/logout', { method: 'POST' })
+        if (!res.ok) {
+          const data = await res.json().catch(() => ({}))
+          this.error = data.message || data.detail || 'Logout failed'
+          return
+        }
+      } catch (e) {
+        this.error = 'Logout failed'
+        return
+      }
+      this.clearSensitiveData()
+      resumeWatching()
     },
     toggleSort(name: SortOrder) {
-      if (this.query) this.prefs.sortFiltered = this.prefs.sortFiltered === name ? '' : name
-      else this.prefs.sortListing = this.prefs.sortListing === name ? '' : name
+      const current = this.query ? this.prefs.sortFiltered : this.prefs.sortListing
+      const newOrder = current === name ? '' : name
+      if (this.query) this.prefs.sortFiltered = newOrder
+      else this.prefs.sortListing = newOrder
+      this.showSortToast(newOrder)
     },
     sort(name: SortOrder | '') {
       if (this.query) this.prefs.sortFiltered = name
       else this.prefs.sortListing = name
+      this.showSortToast(name)
+    },
+    showSortToast(order: SortOrder | '') {
+      const labels: Record<string, string> = {
+        '': 'Folders first',
+        'name': 'Alphabetical order',
+        'modified': 'Newest first',
+        'size': 'Largest first',
+      }
+      this.showToast(labels[order] || order, 1200)
     },
     focusBreadcrumb() {
       (document.querySelector('.breadcrumb') as HTMLAnchorElement).focus()
@@ -102,8 +341,21 @@ export const useMainStore = defineStore({
   getters: {
     sortOrder(): SortOrder { return this.query ? this.prefs.sortFiltered : this.prefs.sortListing },
     isUserLogged(): boolean { return this.user.isLoggedIn },
-    recentDocuments(): Doc[] { return sorted(this.document, 'modified') },
+    /** Get documents count (triggers on docVersion change) */
+    documentCount(): number {
+      // Access docVersion to make this reactive
+      void this.docVersion
+      return getDocuments().length
+    },
+    recentDocuments(): Doc[] {
+      // Access docVersion to make this reactive
+      void this.docVersion
+      return sorted(getDocuments(), 'modified')
+    },
     selectedFiles(): SelectedItems {
+      // Access docVersion to make this reactive
+      void this.docVersion
+      const docs = getDocuments()
       const selected = this.selected
       const found = new Set<FUID>()
       const ret: SelectedItems = {
@@ -112,7 +364,7 @@ export const useMainStore = defineStore({
         keys: [],
         recursive: [],
       }
-      for (const doc of this.document) {
+      for (const doc of docs) {
         if (selected.has(doc.key)) {
           found.add(doc.key)
           ret.keys.push(doc.key)
@@ -129,11 +381,11 @@ export const useMainStore = defineStore({
         ret.recursive.push([rel, full, doc])
       }
       for (const key of ret.keys) {
-        const base = ret.docs[key]
+        const base = ret.docs[key]!
         const basepath = base.loc ? `${base.loc}/${base.name}` : base.name
         const nremove = base.loc.length
         add(base.name, basepath, base)
-        for (const doc of this.document) {
+        for (const doc of docs) {
           if (doc.loc === basepath || doc.loc.startsWith(basepath) && doc.loc[basepath.length] === '/') {
             const full = doc.loc ? `${doc.loc}/${doc.name}` : doc.name
             const rel = full.slice(nremove)

frontend/src/stores/ssoAuth.ts

@@ -0,0 +1,19 @@
+import { defineStore } from 'pinia'
+import { computed } from 'vue'
+import { useMainStore } from './main'
+import { clearTree } from '@/repositories/WS'
+
+export const useSsoAuthStore = defineStore('ssoAuth', () => {
+  const isExternalAuth = computed(() => {
+    const mainStore = useMainStore()
+    return mainStore.server?.paskia === true
+  })
+
+  function clearDataOnUnauth() {
+    const mainStore = useMainStore()
+    mainStore.clearSensitiveData()
+    clearTree()
+  }
+
+  return { isExternalAuth, clearDataOnUnauth }
+})

frontend/src/utils/docsort.ts

@@ -13,3 +13,50 @@ export const sorted = (documents: Doc[], order: SortOrder) => {
   sorted.sort(ordering[order])
   return sorted
 }
+
+/**
+ * Sort documents while keeping files grouped by their folder.
+ * - name: folders sorted by folder path, items within by name
+ * - modified: folders sorted by newest item within results, items within by mtime
+ * - size: folders sorted by largest file within results, items within by size
+ */
+export const sortedGrouped = (documents: Doc[], order: SortOrder) => {
+  if (!order) return documents
+
+  const compare = ordering[order]
+
+  // Group documents by their folder location
+  const byFolder = new Map<string, Doc[]>()
+  for (const doc of documents) {
+    const folder = doc.loc
+    if (!byFolder.has(folder)) byFolder.set(folder, [])
+    byFolder.get(folder)!.push(doc)
+  }
+
+  // Sort items within each folder
+  for (const docs of byFolder.values()) {
+    docs.sort(compare)
+  }
+
+  // Find the "best" item in each folder (first after sorting = best according to criteria)
+  const folderBest = new Map<string, Doc>()
+  for (const [folder, docs] of byFolder) {
+    folderBest.set(folder, docs[0]!)
+  }
+
+  // Sort folders: by path for name sort, by best item for modified/size
+  const sortedFolders = [...byFolder.keys()].sort((a, b) => {
+    if (order === 'name') {
+      return collator.compare(a, b)
+    }
+    return compare(folderBest.get(a)!, folderBest.get(b)!)
+  })
+
+  // Flatten back into a single array with folder grouping preserved
+  const result: Doc[] = []
+  for (const folder of sortedFolders) {
+    result.push(...byFolder.get(folder)!)
+  }
+
+  return result
+}

frontend/src/utils/fileutil.ts

@@ -1,8 +1,52 @@
 import { useMainStore } from '@/stores/main'
+import { getDocuments } from '@/stores/documentStore'
 
 
 export const exists = (path: string[]) => {
   const store = useMainStore()
+  // Access docVersion to make this reactive
+  void store.docVersion
   const p = path.join('/')
-  return store.document.some(doc => (doc.loc ? `${doc.loc}/${doc.name}` : doc.name) === p)
+  return getDocuments().some(doc => (doc.loc ? `${doc.loc}/${doc.name}` : doc.name) === p)
+}
+
+/** Strip file extension intelligently (handles .tar.gz, name.with.dots.pdf, etc.) */
+export const stripExt = (name: string): string => {
+  // Common compound extensions
+  const compoundExts = ['.tar.gz', '.tar.bz2', '.tar.xz', '.tar.zst']
+  const lower = name.toLowerCase()
+  for (const ext of compoundExts) {
+    if (lower.endsWith(ext)) return name.slice(0, -ext.length)
+  }
+  // Regular extension: only strip if the extension looks like one (2-5 chars, alphanumeric)
+  const lastDot = name.lastIndexOf('.')
+  if (lastDot > 0) {
+    const ext = name.slice(lastDot + 1)
+    if (ext.length >= 2 && ext.length <= 5 && /^[a-zA-Z0-9]+$/.test(ext)) {
+      return name.slice(0, lastDot)
+    }
+  }
+  return name
+}
+
+/** Generate a sensible zip filename for a selection of items */
+export const zipName = (items: { name: string; loc: string }[]): string => {
+  const names = items.map(d => d.name)
+  if (names.length === 1) {
+    // Single item - use its name
+    return stripExt(names[0]!)
+  }
+  // Check if all items share the same direct parent folder
+  const locs = items.map(d => d.loc)
+  const sameLoc = locs.every(loc => loc === locs[0])
+  if (sameLoc && locs[0]) {
+    // All items in same folder - use folder name
+    return locs[0].split('/').pop()!
+  }
+  if (names.length <= 3) {
+    // Few items from different folders - join basenames with dot
+    return names.map(stripExt).join('.')
+  }
+  // Many items from different folders - first basename + indicator
+  return `${stripExt(names[0]!)}.etc`
 }

frontend/src/utils/index.ts

@@ -70,7 +70,7 @@ export function getFileType(name: string): string {
   const dotIndex = name.lastIndexOf('.')
   if (dotIndex === -1 || dotIndex === name.length - 1) return 'unknown'
   const ext = name.slice(dotIndex + 1).toLowerCase()
-  return Object.keys(filetypes).find(type => filetypes[type].includes(ext)) || 'unknown'
+  return Object.keys(filetypes).find(type => filetypes[type]!.includes(ext)) || 'unknown'
 }
 
 // Prebuilt for fast & consistent sorting

frontend/src/views/ExplorerView.vue

@@ -2,26 +2,27 @@
   <Gallery
     v-if="store.prefs.gallery"
     ref="fileExplorer"
-    :key="`gallery-${Router.currentRoute.value.path}`"
+    :key="`gallery-${folderPath}`"
     :path="props.path"
     :documents="documents"
   />
   <FileExplorer
     v-else
     ref="fileExplorer"
-    :key="`explorer-${Router.currentRoute.value.path}`"
+    :key="`explorer-${folderPath}`"
     :path="props.path"
     :documents="documents"
   />
+  <div v-if="store.searchLoading" class="search-loading">Searching...</div>
   <EmptyFolder :documents=documents :path=props.path />
 </template>
 
 <script setup lang="ts">
 import { watchEffect, ref, computed, watch } from 'vue'
 import { useMainStore } from '@/stores/main'
-import Router from '@/router/index'
-import { needleFormat, localeIncludes, collator } from '@/utils'
-import { sorted } from '@/utils/docsort'
+import { getDocuments } from '@/stores/documentStore'
+import { collator } from '@/utils'
+import { sorted, sortedGrouped } from '@/utils/docsort'
 import FileExplorer from '@/components/FileExplorer.vue'
 
 const store = useMainStore()
@@ -30,51 +31,60 @@ const props = defineProps<{
   path: Array<string>
   query: string
 }>()
+
+// Folder path for component keys - only recreate component when folder changes, not search
+const folderPath = computed(() => props.path.join('/'))
+
+// Handle route-based search changes (back/forward navigation, direct URL)
+// Skip if store.query already matches (means we triggered this via typing)
+watch(
+  () => [props.query, props.path.join('/')] as const,
+  ([query, loc]) => {
+    if (store.query === query) return  // Already searching this query
+    store.search(query, loc)
+  },
+  { immediate: true }
+)
+
 const documents = computed(() => {
   const loc = props.path.join('/')
   const query = props.query
-  // List the current location
-  if (!query) return sorted(
-    store.document.filter(doc => doc.loc === loc),
-    store.prefs.sortListing,
-  )
-  // Find up to 100 newest documents that match the search
-  const needle = needleFormat(query)
-  let limit = 100
-  let docs = []
-  for (const doc of store.recentDocuments) {
-    if (localeIncludes(doc.haystack, needle)) {
-      docs.push(doc)
-      if (--limit === 0) break
-    }
+
+  // List the current location (no search)
+  if (!query) {
+    // Access docVersion to make this reactive to document changes
+    void store.docVersion
+    const hidden = store.hiddenPaths
+    const docs = getDocuments().filter(doc => doc.loc === loc && !hidden.has(doc.loc ? `${doc.loc}/${doc.name}` : doc.name))
+    // Overlay ghosts for this location (excluding hidden ones)
+    const ghosts = store.ghosts.filter(g => g.loc === loc && !hidden.has(g.loc ? `${g.loc}/${g.name}` : g.name))
+    // Merge: ghosts that don't conflict with real docs
+    const realNames = new Set(docs.map(d => d.name))
+    const merged = [...docs, ...ghosts.filter(g => !realNames.has(g.name))]
+    return sorted(merged, store.prefs.sortListing)
   }
-  const locsub = loc + '/'
-  // Custom sort override in effect?
+
+  // Search results from worker (also filter hidden)
+  const hidden = store.hiddenPaths
+  const docs = store.searchResults.filter(doc => !hidden.has(doc.loc ? `${doc.loc}/${doc.name}` : doc.name))
+
+  // Custom sort override in effect? Use grouped sorting to keep folders together
   const order = store.prefs.sortFiltered
-  if (order) return sorted(docs, order)
-  // Sort by relevance - current folder, then subfolders, then others
-  docs.sort((a, b) => (
-    // @ts-ignore
-    (b.loc === loc) - (a.loc === loc) ||
-    // @ts-ignore
-    (b.loc.slice(0, locsub.length) === locsub) - (a.loc.slice(0, locsub.length) === locsub) ||
-    collator.compare(a.loc, b.loc) ||
-    // @ts-ignore
-    (a.type === 'file') - (b.type === 'file') ||
-    // @ts-ignore
-    b.name.includes(query) - a.name.includes(query) ||
-    collator.compare(a.name, b.name)
-  ))
+  if (order) return sortedGrouped(docs, order)
+
+  // Results are already sorted by relevance in the worker
   return docs
 })
 
 watchEffect(() => {
   store.fileExplorer = fileExplorer.value
-  store.query = props.query
 })
 
-watch(documents, (docs) => {
-  store.prefs.gallery = docs.some(d => d.previewable)
+// Only auto-switch gallery mode when entering a new folder or on initial file list load
+watch([() => props.path.join('/'), () => store.documentCount], ([path, len], [oldPath, oldLen]) => {
+  // React to path change or initial document load (0 → non-zero)
+  if (path === oldPath && oldLen !== undefined && oldLen > 0) return
+  store.prefs.gallery = documents.value.some(d => d.previewable)
 }, { immediate: true })
 </script>
 
@@ -89,4 +99,15 @@ watch(documents, (docs) => {
   text-shadow: 0 0 .3rem #000, 0 0 2rem #0008;
   color: var(--accent-color);
 }
+.search-loading {
+  position: fixed;
+  bottom: 1rem;
+  right: 1rem;
+  padding: 0.5rem 1rem;
+  background: var(--accent-color, #007bff);
+  color: white;
+  border-radius: 0.25rem;
+  font-size: 0.875rem;
+  opacity: 0.9;
+}
 </style>

frontend/src/workers/searchWorker.ts

@@ -0,0 +1,225 @@
+// Search worker - runs search in background thread
+// Receives document updates and search queries, returns incremental results
+
+interface DocData {
+  loc: string
+  name: string
+  key: string
+  size: number
+  mtime: number
+  dir: boolean
+}
+
+interface WorkerDoc extends DocData {
+  haystack: string
+}
+
+interface SearchMessage {
+  type: 'search'
+  query: string
+  loc: string
+  id: number
+}
+
+interface UpdateMessage {
+  type: 'update'
+  documents: DocData[]
+}
+
+type IncomingMessage = SearchMessage | UpdateMessage
+
+interface ResultMessage {
+  type: 'results'
+  docs: DocData[]
+  id: number
+  done: boolean
+}
+
+// Worker state
+let recentDocuments: WorkerDoc[] = []  // Sorted by mtime descending
+let currentSearchId = 0
+
+// Search result cache - cleared when documents change
+interface CacheEntry {
+  query: string         // Normalized query string
+  results: WorkerDoc[]  // Matched results (up to limit)
+  complete: boolean     // True if search scanned all documents
+}
+const searchCache: CacheEntry[] = []
+const MAX_CACHE_SIZE = 10
+const RESULT_LIMIT = 100
+
+// Normalize string for search (remove diacritics, lowercase)
+// Haystack adds ^ and $ markers to allow matching start/end of name
+function normalizeHaystack(str: string): string {
+  return '^' + str.normalize('NFKD').replace(/[\u0300-\u036f]/g, '').toLowerCase() + '$'
+}
+
+function normalizeQuery(str: string): string {
+  return str.normalize('NFKD').replace(/[\u0300-\u036f]/g, '').toLowerCase()
+}
+
+// Test if document matches search query
+function matches(haystack: string, query: string, words: string[]): boolean {
+  return haystack.includes(query) || words.every(word => haystack.includes(word))
+}
+
+// Collator for sorting
+const collator = new Intl.Collator('en', { sensitivity: 'base', numeric: true })
+
+// Yield control to allow new messages to be processed
+const yieldControl = (): Promise<void> => new Promise(resolve => setTimeout(resolve, 0))
+
+// Find best cache entry to filter from
+// Returns entry if new query's results are guaranteed to be a subset of cached results
+// Only valid if the cached search was complete (scanned all documents)
+function findCacheSubset(query: string): CacheEntry | null {
+  // Look for a cached query that the new query starts with
+  // e.g., cached "foo" can be used for "foobar" or "foo bar"
+  // The longer the prefix, the better (fewer items to filter)
+  // IMPORTANT: Only use complete cache entries - incomplete ones may have
+  // missed results that would match the more specific query
+  let best: CacheEntry | null = null
+  for (const entry of searchCache) {
+    if (entry.complete && query.startsWith(entry.query)) {
+      if (!best || entry.query.length > best.query.length) {
+        best = entry
+      }
+    }
+  }
+  return best
+}
+
+// Add result to cache
+function addToCache(query: string, results: WorkerDoc[], complete: boolean) {
+  // Remove existing entry for same query if any
+  const idx = searchCache.findIndex(e => e.query === query)
+  if (idx !== -1) searchCache.splice(idx, 1)
+  // Add to front (most recent)
+  searchCache.unshift({ query, results, complete })
+  // Trim cache
+  if (searchCache.length > MAX_CACHE_SIZE) searchCache.pop()
+}
+
+// Clear cache (called when documents change)
+function clearCache() {
+  searchCache.length = 0
+}
+
+// Perform search with incremental results
+async function performSearch(rawQuery: string, loc: string, searchId: number) {
+  const query = normalizeQuery(rawQuery)
+  const words = query.split(/\s+/)
+  const results: WorkerDoc[] = []
+  let lastResultCount = 0
+
+  // Check cache for exact match
+  const exactMatch = searchCache.find(e => e.query === query)
+  if (exactMatch) {
+    if (currentSearchId === searchId) {
+      postResults(exactMatch.results, rawQuery, loc, searchId, true)
+    }
+    return
+  }
+
+  // Check if we can filter from a cached superset
+  const cacheEntry = findCacheSubset(query)
+  if (cacheEntry) {
+    // Fast path: filter from cached results (only used for complete cache entries)
+    for (const doc of cacheEntry.results) {
+      if (matches(doc.haystack, query, words)) {
+        results.push(doc)
+      }
+    }
+    // Cache entry was complete, so filtered results are also complete
+    addToCache(query, results, true)
+
+    if (currentSearchId === searchId) {
+      postResults(results, rawQuery, loc, searchId, true)
+    }
+    return
+  }
+
+  // Slow path: scan all documents
+  const batchSize = 500
+  for (let i = 0; i < recentDocuments.length && results.length < RESULT_LIMIT; i += batchSize) {
+    if (currentSearchId !== searchId) return  // Superseded
+
+    // Process batch
+    const end = Math.min(i + batchSize, recentDocuments.length)
+    for (let j = i; j < end && results.length < RESULT_LIMIT; j++) {
+      const doc = recentDocuments[j]!
+      if (matches(doc.haystack, query, words)) {
+        results.push(doc)
+      }
+    }
+
+    // Post incremental results if we found new matches
+    if (results.length > lastResultCount && currentSearchId === searchId) {
+      lastResultCount = results.length
+      postResults(results, rawQuery, loc, searchId, false)
+    }
+
+    // Yield control between batches
+    if (i + batchSize < recentDocuments.length && results.length < RESULT_LIMIT) {
+      await yieldControl()
+    }
+  }
+
+  // Cache and post final results
+  addToCache(query, results, results.length < RESULT_LIMIT)
+  if (currentSearchId === searchId) {
+    postResults(results, rawQuery, loc, searchId, true)
+  }
+}
+
+// Post results to main thread
+function postResults(docs: WorkerDoc[], query: string, loc: string, id: number, done: boolean) {
+  const sorted = sortResults(docs, query, loc)
+  postMessage({
+    type: 'results',
+    docs: sorted.map(({ haystack, ...rest }) => rest),
+    id,
+    done
+  } as ResultMessage)
+}
+
+// Sort results by relevance
+function sortResults(docs: WorkerDoc[], query: string, loc: string): WorkerDoc[] {
+  const locsub = loc + '/'
+  return [...docs].sort((a, b) => (
+    // Current folder first
+    Number(b.loc === loc) - Number(a.loc === loc) ||
+    // Then subfolders
+    Number(b.loc.startsWith(locsub)) - Number(a.loc.startsWith(locsub)) ||
+    // Then by location
+    collator.compare(a.loc, b.loc) ||
+    // Folders before files
+    Number(b.dir) - Number(a.dir) ||
+    // Exact name match first
+    Number(b.name.includes(query)) - Number(a.name.includes(query)) ||
+    // Finally by name
+    collator.compare(a.name, b.name)
+  ))
+}
+
+// Handle incoming messages
+self.onmessage = async (e: MessageEvent<IncomingMessage>) => {
+  const msg = e.data
+
+  if (msg.type === 'update') {
+    // Update document list with haystacks, sorted by mtime descending
+    recentDocuments = msg.documents
+      .map(doc => ({ ...doc, haystack: normalizeHaystack(doc.name) }))
+      .sort((a, b) => b.mtime - a.mtime)
+    clearCache()
+  } else if (msg.type === 'search') {
+    currentSearchId = msg.id
+    if (msg.query) {
+      await performSearch(msg.query, msg.loc, msg.id)
+    } else {
+      // Empty query - no results needed
+      postMessage({ type: 'results', docs: [], id: msg.id, done: true } as ResultMessage)
+    }
+  }
+}

frontend/vite-plugin-fastapi.js

@@ -0,0 +1,35 @@
+/**
+ * FastAPI-Vue Vite Plugin
+ *
+ * Configures Vite for FastAPI backend integration:
+ * - Proxies /api/* requests to the FastAPI backend
+ * - Builds to the Python module's frontend-build directory
+ *
+ * Environment variables (with defaults):
+ *   FASTAPI_VUE_BACKEND_URL=http://localhost:8999 - Backend API URL for proxying
+ */
+
+const backendUrl = process.env.FASTAPI_VUE_BACKEND_URL || "http://localhost:8999"
+
+export default function fastapiVue({ paths = ["/api"] } = {}) {
+  // Build proxy configuration for each path
+  const proxy = {}
+  for (const path of paths) {
+    proxy[path] = {
+      target: backendUrl,
+      changeOrigin: false,
+      ws: true,
+    }
+  }
+
+  return {
+    name: "fastapi-vite",
+    config: () => ({
+      server: { proxy },
+      build: {
+        outDir: "../cista/frontend-build",
+        emptyOutDir: true,
+      },
+    }),
+  }
+}

frontend/vite.config.ts

@@ -1,4 +1,5 @@
 import { fileURLToPath, URL } from 'node:url'
+import fastapiVue from './vite-plugin-fastapi.js'
 
 import { defineConfig } from 'vite'
 import vue from '@vitejs/plugin-vue'
@@ -7,18 +8,11 @@ import vue from '@vitejs/plugin-vue'
 import svgLoader from 'vite-svg-loader'
 import Components from 'unplugin-vue-components/vite'
 
-// Development mode:
-// bun run dev           # Run frontend that proxies to dev_backend
-// cista -l :8000 --dev  # Run backend
-const dev_backend = {
-  target: "http://localhost:8000",
-  changeOrigin: false,  // Use frontend "host" to match "origin" from browser
-  ws: true,
-}
-
 // https://vitejs.dev/config/
+// Note: fastapiVue() handles proxy and build output (uses FASTAPI_VUE_BACKEND_URL env)
 export default defineConfig({
   plugins: [
+    fastapiVue({ paths: ["/api", "/auth", "/files", "/zip", "/preview"] }),
     vue(),
     svgLoader(),          // import svg files
     Components(),         // auto import components
@@ -36,19 +30,16 @@ export default defineConfig({
       '@': fileURLToPath(new URL('./src', import.meta.url))
     }
   },
-  server: {
-    proxy: {
-      "/api": dev_backend,
-      "/files": dev_backend,
-      "/login": dev_backend,
-      "/logout": dev_backend,
-      "/password-change": dev_backend,
-      "/zip": dev_backend,
-      "/preview": dev_backend,
-    }
-  },
   build: {
-    outDir: "../cista/wwwroot",
-    emptyOutDir: true,
-  }
+    rollupOptions: {
+      output: {
+        manualChunks: {
+          // Bundle all SVG icons into a single chunk
+          icons: [
+            '/src/assets/svg/index.ts',
+          ],
+        },
+      },
+    },
+  },
 })

pyproject.toml

@@ -27,8 +27,11 @@ dependencies = [
     "argon2-cffi>=25.1.0",
     "av>=15.0.0",
     "blake3>=1.0.5",
-    "brotli>=1.1.0",
-    "docopt>=0.6.2",
+    "docopt-ng>=0.9.0",
+    "fastapi-vue>=0.5.2",
+    "fastapi[standard]>=0.128.0",
+    "html5tagger>=1.3.0",
+    "httpx>=0.28.0",
     "inotify>=0.2.12",
     "msgspec>=0.19.0",
     "natsort>=8.4.0",
@@ -38,10 +41,11 @@ dependencies = [
     "pillow-heif>=1.1.0",
     "pyjwt>=2.10.1",
     "pymupdf>=1.26.3",
-    "sanic>=25.3.0",
+    "sanic>=25.12.0",
     "setproctitle>=1.3.6",
     "stream-zip>=0.0.83",
     "tomli_w>=1.2.0",
+    "zstandard>=0.24.0",
 ]
 
 [project.urls]
@@ -71,8 +75,8 @@ docs = [
 source = "vcs"
 
 [tool.hatch.build]
-artifacts = ["cista/wwwroot"]
-targets.sdist.hooks.custom.path = "scripts/build-frontend.py"
+artifacts = ["cista/frontend-build"]
+targets.sdist.hooks.custom.path = "scripts/fastapi-vue/build-frontend.py"
 targets.sdist.include = [
     "/cista",
 ]
@@ -82,6 +86,7 @@ hooks.vcs.template = """
 __version__ = {version!r}
 """
 only-packages = true
+packages = ["cista"]
 
 [tool.pytest.ini_options]
 addopts = [
@@ -119,6 +124,7 @@ dev = [
     "ruff>=0.8.0",
     "mypy>=1.13.0",
     "pre-commit>=4.0.0",
+    "httpx>=0.28.1",
 ]
 test = [
     "pytest>=8.4.1",

scripts/build-frontend.py

@@ -1,37 +0,0 @@
-# noqa: INP001
-import os
-import shutil
-import subprocess
-from sys import stderr
-
-from hatchling.builders.hooks.plugin.interface import BuildHookInterface
-
-
-class CustomBuildHook(BuildHookInterface):
-    def initialize(self, version, build_data):
-        super().initialize(version, build_data)
-        stderr.write(">>> Building Cista frontend\n")
-        npm = None
-        bun = shutil.which("bun")
-        if bun is None:
-            npm = shutil.which("npm")
-            if npm is None:
-                raise RuntimeError(
-                    "Bun or NodeJS `npm` is required for building but neither was found\n  Visit https://bun.com/"
-                )
-        # npm --prefix doesn't work on Windows, so we chdir instead
-        os.chdir("frontend")
-        try:
-            if npm:
-                stderr.write("### npm install\n")
-                subprocess.run([npm, "install"], check=True)  # noqa: S603
-                stderr.write("\n### npm run build\n")
-                subprocess.run([npm, "run", "build"], check=True)  # noqa: S603
-            else:
-                assert bun
-                stderr.write("### bun install\n")
-                subprocess.run([bun, "install"], check=True)  # noqa: S603
-                stderr.write("\n### bun run build\n")
-                subprocess.run([bun, "run", "build"], check=True)  # noqa: S603
-        finally:
-            os.chdir("..")

scripts/devserver.py

@@ -0,0 +1,111 @@
+#!/usr/bin/env -S uv run
+"""Run Vite development server for frontend and Cista backend with auto-reload.
+
+Usage:
+    uv run scripts/devserver.py [frontend] [--backend backend] [cista_args...]
+
+Options:
+    frontend    Vite frontend endpoint (default: localhost:8989)
+    --backend   Cista backend endpoint (default: from config, or :8999)
+
+Any additional arguments are passed to the cista command.
+
+Environment:
+    JS_RUNTIME  Path or name of JS runtime to use (deno, npm/node or bun).
+"""
+
+import argparse
+import asyncio
+import contextlib
+import os
+import sys
+from pathlib import Path
+
+# Import devutil from scripts/fastapi-vue (not a package, so we adjust sys.path)
+sys.path.insert(0, str(Path(__file__).with_name("fastapi-vue")))
+from devutil import ProcessGroup, logger, ready, setup_vite  # type: ignore
+
+from cista import config
+from cista.serve import parse_listen
+
+DEFAULT_BACKEND_PORT = 8999
+
+
+def setup_sanic_backend(listen: str | None, extra_args: list[str]) -> tuple[str, list[str]]:
+    """Parse backend listen address and build cista dev command.
+
+    Returns (url, cmd).
+    """
+    config.load_config()
+    listen = listen or config.config.listen or f":{DEFAULT_BACKEND_PORT}"
+    url, opts = parse_listen(listen)
+    port = opts.get("port", DEFAULT_BACKEND_PORT)
+    host = opts.get("host", "localhost") or "localhost"
+
+    cmd = ["cista", "--dev", "-l", listen] + extra_args
+    return f"http://{host}:{port}", cmd
+
+
+async def run_devserver(frontend: str | None, backend: str | None, extra_args: list[str]) -> None:
+    reporoot = Path(__file__).parent.parent
+    front = reporoot / "frontend"
+    if not (front / "package.json").exists():
+        logger.warning("Frontend source not found at %s", front)
+        raise SystemExit(1)
+
+    frontend_url, npm_install, vite = setup_vite(frontend or "")
+    backend_url, sanic_cmd = setup_sanic_backend(backend, extra_args)
+
+    # Tell vite where to proxy API requests
+    os.environ["FASTAPI_VUE_BACKEND_URL"] = backend_url
+
+    async with ProcessGroup() as pg:
+        install_proc = await pg.spawn(*npm_install, cwd=str(front))
+        await asyncio.sleep(0.2)  # reduce message overlap
+        await pg.spawn(*sanic_cmd, cwd=str(reporoot))
+
+        # Wait for both install and backend to be ready
+        async with asyncio.TaskGroup() as tg:
+            tg.create_task(pg.wait(install_proc))
+            tg.create_task(ready(backend_url, path="/api/health?from=devserver.py"))
+
+        # Start Vite dev server (ProcessGroup waits for any exit, then terminates others)
+        await pg.spawn(*vite, cwd=str(front))
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Run Vite and Cista (Sanic) development servers",
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog=HELP_EPILOG,
+    )
+    parser.add_argument(
+        "frontend",
+        nargs="?",
+        metavar="host:port",
+        help="Vite frontend endpoint (default: localhost:8989)",
+    )
+    parser.add_argument(
+        "--backend",
+        "-l",
+        metavar="host:port",
+        help="Cista backend endpoint (default: from config, or :8999)",
+    )
+    args, unknown = parser.parse_known_args()
+    with contextlib.suppress(KeyboardInterrupt):
+        asyncio.run(run_devserver(args.frontend, args.backend, unknown))
+
+
+HELP_EPILOG = """
+  scripts/devserver.py                       # Default ports
+  scripts/devserver.py 3000                  # Vite on localhost:3000
+  scripts/devserver.py :3000 --backend 8080  # Vite on *:3000, backend on :8080
+
+  Additional arguments are passed to the cista backend command.
+
+  JS_RUNTIME environment variable can be used to select the JS runtime
+"""
+
+
+if __name__ == "__main__":
+    main()

scripts/fastapi-vue/build-frontend.py

@@ -0,0 +1,15 @@
+"""Hatch build hook for building Vue frontend during package build."""
+
+import sys
+from pathlib import Path
+
+from hatchling.builders.hooks.plugin.interface import BuildHookInterface  # type: ignore
+
+sys.path.insert(0, str(Path(__file__).parent))
+from buildutil import build
+
+
+class CustomBuildHook(BuildHookInterface):
+    def initialize(self, version, build_data):
+        super().initialize(version, build_data)
+        build("frontend")

scripts/fastapi-vue/buildutil.py

@@ -0,0 +1,191 @@
+"""Utilities used at build time and in devserver script. No dependencies."""
+
+import logging
+import os
+import re
+import shutil
+import subprocess
+from pathlib import Path
+
+
+class _PrefixFormatter(logging.Formatter):
+    """Formatter that adds prefix based on log level."""
+
+    def format(self, record: logging.LogRecord) -> str:
+        if record.levelno >= logging.WARNING:
+            return f"┃ ⚠️  {record.getMessage()}"
+        return record.getMessage()
+
+
+_handler = logging.StreamHandler()
+_handler.setFormatter(_PrefixFormatter())
+logger = logging.getLogger("fastapi-vue")
+logger.addHandler(_handler)
+logger.setLevel(logging.INFO)
+
+
+def _check_node_version(node_path: str) -> None:
+    """Check if Node.js version is >= 20.
+
+    Raises RuntimeError if version is too old or cannot be determined.
+    """
+    try:
+        result = subprocess.run(
+            [node_path, "--version"], capture_output=True, text=True, check=True
+        )
+        version_str = result.stdout.strip()
+        # Parse version like "v20.10.0" or "v18.17.1"
+        match = re.match(r"v(\d+)", version_str)
+        if match:
+            major_version = int(match.group(1))
+            if major_version >= 20:
+                return
+            raise RuntimeError(
+                f"Node.js {version_str} found, but v20+ required (install with nvm)"
+            )
+    except (subprocess.CalledProcessError, FileNotFoundError, ValueError):
+        pass
+    raise RuntimeError("Could not determine Node.js version")
+
+
+def find_js_runtime() -> tuple[str, str]:
+    """Find a JavaScript runtime from JS_RUNTIME env or auto-detect.
+
+    Returns (tool_path, tool_name) where tool_name is "deno", "npm", or "bun".
+    Raises JSRuntimeError if no suitable runtime is found.
+    """
+    options = ["npm", "deno", "bun"]
+    node_version_error: RuntimeError | None = None
+
+    # Check for JS_RUNTIME environment variable
+    if js_runtime_env := os.environ.get("JS_RUNTIME"):
+        js_runtime = js_runtime_env
+        js_path = Path(js_runtime)
+        runtime_name = js_path.name
+        # Map node to npm
+        if runtime_name == "node":
+            runtime_name = "npm"
+            js_runtime = str(js_path.parent / "npm") if js_path.parent.name else "npm"
+        for option in options:
+            if option == runtime_name or runtime_name.startswith(option):
+                tool = shutil.which(js_runtime)
+                if tool is None:
+                    raise RuntimeError(
+                        f"JS_RUNTIME={js_runtime_env}: {option} not found"
+                    )
+                # Check Node.js version if using npm
+                if option == "npm":
+                    node_path = shutil.which("node", path=str(Path(tool).parent))
+                    if node_path is None:
+                        raise RuntimeError(
+                            f"JS_RUNTIME={js_runtime_env}: node not found"
+                        )
+                    _check_node_version(node_path)  # Raises on failure
+                return tool, option
+        raise RuntimeError(f"JS_RUNTIME={js_runtime_env} not recognized")
+
+    # Auto-detect
+    for option in options:
+        if tool := shutil.which(option):
+            # Check Node.js version if using npm
+            if option == "npm":
+                node_path = shutil.which("node", path=str(Path(tool).parent))
+                if node_path is None:
+                    continue
+                try:
+                    _check_node_version(node_path)
+                except RuntimeError as e:
+                    node_version_error = e
+                    continue  # Try next runtime
+            return tool, option
+
+    # No runtime found - provide helpful error
+    if node_version_error:
+        raise node_version_error
+    raise RuntimeError("Node.js (v20+), Deno or Bun is required but none was found")
+
+
+def find_build_tool():
+    """Find JavaScript runtime and construct install/build commands.
+
+    Returns (install_cmd, build_cmd) tuples of command lists.
+    Raises RuntimeError if no runtime is found.
+    """
+    install = {
+        "deno": ("install", "--allow-scripts=npm:vue-demi"),
+        "npm": ("install",),
+        "bun": ("--bun", "install"),
+    }
+    # Run vite directly for deno to avoid npm-run-all2/run-p issues
+    build = {
+        "deno": ("run", "-A", "npm:vite", "build"),
+        "npm": ("run", "build"),
+        "bun": ("--bun", "run", "build"),
+    }
+
+    tool, name = find_js_runtime()
+    return [tool, *install[name]], [tool, *build[name]]
+
+
+def find_dev_tool() -> list[str]:
+    """Find JavaScript runtime and construct dev command.
+
+    Returns dev_cmd (without vite-specific args).
+    Raises RuntimeError if no runtime is found.
+    """
+    dev_args = {
+        "deno": ("run", "dev", "--"),
+        "npm": ("--silent", "run", "dev", "--"),
+        "bun": ("run", "dev", "--"),
+    }
+
+    tool, name = find_js_runtime()
+
+    if name == "bun":
+        logger.warning(
+            "Bun has a bug in WS proxying (https://github.com/oven-sh/bun/issues/9882). Consider using npm instead."
+        )
+
+    return [tool, *dev_args[name]]
+
+
+def find_install_tool() -> list[str]:
+    """Find JavaScript runtime and construct install command.
+
+    Returns install_cmd.
+    Raises RuntimeError if no runtime is found.
+    """
+    install_args = {
+        "deno": ("install", "--quiet", "--allow-scripts=npm:vue-demi"),
+        "npm": ("install", "--silent"),
+        "bun": ("install", "--silent"),
+    }
+
+    tool, name = find_js_runtime()
+    return [tool, *install_args[name]]
+
+
+def build(folder: str = "frontend") -> None:
+    """Build the frontend in the specified folder.
+
+    Raises SystemExit(1) on failure.
+    """
+    logger.info(">>> Building %s", folder)
+
+    try:
+        install_cmd, build_cmd = find_build_tool()
+    except RuntimeError as e:
+        logger.warning(e)
+        raise SystemExit(1)
+
+    def run(cmd):
+        display_cmd = [Path(cmd[0]).name, *cmd[1:]]
+        logger.info("### %s", " ".join(display_cmd))
+        subprocess.run(cmd, check=True, cwd=folder)
+
+    try:
+        run(install_cmd)
+        logger.info("")
+        run(build_cmd)
+    except subprocess.CalledProcessError:
+        raise SystemExit(1)

scripts/fastapi-vue/devutil.py

@@ -0,0 +1,157 @@
+"""Utilities meant for devserver script, used only in source repository with dev deps."""
+
+import asyncio
+from pathlib import Path
+
+import httpx
+from buildutil import find_dev_tool, find_install_tool, logger
+from fastapi_vue.hostutil import parse_endpoint
+
+DEFAULT_VITE_PORT = 8989
+DEFAULT_BACKEND_PORT = 8999
+
+
+class ProcessGroup:
+    """Manage async subprocesses with automatic cleanup, like TaskGroup for processes."""
+
+    def __init__(self):
+        self._procs: list[asyncio.subprocess.Process] = []
+
+    async def spawn(
+        self, *cmd: str, cwd: str | None = None
+    ) -> asyncio.subprocess.Process:
+        """Spawn a subprocess and track it."""
+        logger.info(">>> %s", " ".join([Path(cmd[0]).name, *cmd[1:]]))
+        proc = await asyncio.create_subprocess_exec(*cmd, cwd=cwd)
+        self._procs.append(proc)
+        return proc
+
+    async def wait(self, proc: asyncio.subprocess.Process) -> None:
+        """Wait for a process to complete, raise SystemExit(1) on failure."""
+        if await proc.wait() != 0:
+            logger.warning("Command failed")
+            raise SystemExit(1)
+
+    async def __aenter__(self):
+        return self
+
+    async def __aexit__(self, exc_type, *_):
+        """Wait for one process to exit, terminate others, then wait for all."""
+        cleanup_task = asyncio.create_task(self._cleanup())
+        try:
+            await asyncio.shield(cleanup_task)
+        except asyncio.CancelledError:
+            # Shield was cancelled but cleanup_task continues - wait for it
+            await cleanup_task
+
+    async def _cleanup(self):
+        running = [p for p in self._procs if p.returncode is None]
+        if not running:
+            return
+
+        # Wait for any one process to exit
+        await asyncio.wait(
+            [asyncio.create_task(p.wait()) for p in running],
+            return_when=asyncio.FIRST_COMPLETED,
+        )
+
+        # Terminate remaining processes
+        for p in self._procs:
+            if p.returncode is None:
+                try:
+                    p.terminate()
+                except ProcessLookupError:
+                    pass
+
+        # Wait for all to finish (with overall timeout)
+        still_running = [p for p in self._procs if p.returncode is None]
+        if still_running:
+            try:
+                await asyncio.wait_for(
+                    asyncio.gather(*[p.wait() for p in still_running]),
+                    timeout=10,
+                )
+            except TimeoutError:
+                for p in self._procs:
+                    if p.returncode is None:
+                        try:
+                            p.kill()
+                        except ProcessLookupError:
+                            pass
+                        await p.wait()
+
+
+async def ready(url: str, path: str = "") -> None:
+    """Wait for the server to be ready by polling an endpoint.
+
+    Raises SystemExit(1) if server doesn't start in time.
+    """
+    max_attempts = 50
+    full_url = f"{url}{path}"
+
+    async with httpx.AsyncClient() as client:
+        for attempt in range(max_attempts):
+            try:
+                await client.get(full_url, timeout=1.0)
+                logger.info("✓ Backend ready!")
+                return
+            except httpx.RequestError:
+                if attempt == max_attempts - 1:
+                    logger.warning("Backend didn't start in time")
+                    raise SystemExit(1)
+                await asyncio.sleep(0.1)
+
+
+def setup_vite(endpoint: str) -> tuple[str, list[str], list[str]]:
+    """Parse frontend endpoint and build commands.
+
+    Returns (url, install_cmd, dev_cmd).
+    Raises SystemExit(1) on invalid config.
+    """
+    endpoints = parse_endpoint(endpoint, DEFAULT_VITE_PORT)
+
+    if "uds" in endpoints[0]:
+        logger.warning("Unix sockets not supported with vite devserver")
+        raise SystemExit(1)
+
+    port = endpoints[0]["port"]
+    host = endpoints[0]["host"]
+
+    install_cmd = find_install_tool()
+    dev_cmd = find_dev_tool()
+    if host != "localhost":
+        dev_cmd.append("--host" if len(endpoints) > 1 else f"--host={host}")
+    if port != 5173:
+        dev_cmd.append(f"--port={port}")
+
+    return f"http://{host}:{port}", install_cmd, dev_cmd
+
+
+def setup_fastapi(
+    endpoint: str, module: str, default_port: int = DEFAULT_BACKEND_PORT
+) -> tuple[str, list[str]]:
+    """Parse backend endpoint and build fastapi dev command.
+
+    Returns (url, cmd).
+    Raises SystemExit(1) on invalid config.
+    """
+    endpoints = parse_endpoint(endpoint, default_port)
+
+    if "uds" in endpoints[0]:
+        logger.warning("Unix sockets not supported with vite devserver")
+        raise SystemExit(1)
+
+    host = endpoints[0]["host"]
+    port = endpoints[0]["port"]
+
+    cmd = [
+        "fastapi",
+        "dev",
+        "--entrypoint",
+        module,
+        "--host",
+        host,
+        "--port",
+        str(port),
+    ]
+    return f"http://{host}:{port}", cmd