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**The chat tab was 8px too tall, at every window size.** The panel is sized from
JS to `viewport - top - 16`, which puts its bottom 16px above the fold — but it
sits inside `.main`, which adds 24px of padding below it. Eight pixels of
document past the window, whatever the window. Measured at 700, 900 and 1200:
`scrollHeight` 708, 908, 1208.
This is the second one of these — the sign-in card was `.page-center` and
`.layout` each reserving `100vh - 52px` — so it is now measured in the suite
rather than reasoned about. `tests/harness/scroll_probe.py` renders the real
markup against the real stylesheet and **runs the real `fit()` lifted out of
`app.js`**: a copy of the formula in a test would go on passing after the
original changed, which is exactly the bug being guarded.
The fix does not encode 24 anywhere. The first pass runs as before, then the
leftover is measured and taken off, so anything added below the panel later is
absorbed the same way. Now `scrollHeight == innerHeight` at all three heights,
nothing below the fold, and the panel still fills the room it has — that last
one has its own test, because shrinking the chat to 240px would satisfy every
other assertion here and be useless.
The Settings tab was measured too and is **not** a bug: it fits at 1200px and
overflows only when its content is genuinely taller than the window.
**Group creation asked one question twice.** Visibility and admission were
separate selectors that could only ever be set together — picking Public reached
over and set the policy — and two of the four combinations are meaningless. The
API already refused public+invite with a 422, so the form could build a request
that could not succeed. Private+open was accepted and should not have been: a
group anyone may join that nobody can find is a listing with the listing
removed, since joining goes through the node and there is no link to pass
around.
So: one selector, "who can join", and the request derives the rest. The API now
refuses the other impossible pair as well, with a message that says which way to
resolve it. Six locale strings the visibility box owned are deleted rather than
left unread in ten files, and the two surviving descriptions now say what each
choice means for who can *find* the group — with the word "public" gone from the
page, nothing else would have said it, and someone would publish a group without
meaning to.
865 tests pass.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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**Full-screen was denied, and the denial was invisible.** The permission
handler was written from a true sentence — nothing here needs a camera, a
microphone or a location — and implemented as `callback(false)` for everything.
Chromium's own video controls ask for the `fullscreen` permission, so a film
could not be watched full-screen.
What made it hard to find, and what the test now pins: **a denied `fullscreen`
does not reject.** `requestFullscreen()` returns a promise that never settles.
No exception, no console message, nothing in the renderer that mentions a
permission — the button just does nothing. Measured rather than reasoned: the
probe reported `NEVER SETTLED` while the main process, instrumented for one run,
logged `PERMISSION ASKED: fullscreen`. After the fix the same probe reports
`granted` with `document.fullscreenElement` set.
The handler now enumerates what is *granted* — `fullscreen`, and nothing else —
so a camera, a microphone, a location, notifications and MIDI are still refused
and whatever Chromium adds next arrives refused rather than quietly allowed.
`Permissions.query` takes the other handler, so both now answer from the one
list instead of eventually disagreeing.
The old test asserted `callback(false)`, which is to say it locked in the bug.
It is replaced by three: what must stay denied, that `fullscreen` is granted,
and that both handlers read the same list.
**"Save automatically" opened a dialog.** The automatic path required a folder
to have been chosen first, and on a new profile nobody has chosen one — so the
very first download fell through to Save As, which is the one thing the setting
promises not to do. A browser does not make you pick a folder before it will
save a file; the system Downloads folder is the answer when there is no other.
Verified on a fresh profile with a home of its own: no dialog, 1024 bytes on
disk, destination reported as the default (`/home/…/Téléchargements` on this
machine, via the localized XDG directory).
A folder that *was* chosen and has since gone still asks. Silently redirecting
those files is worse than a dialog: someone who picked an external drive wants
to be told it is not there, not to find the film in their home directory a week
later. Settings shows the effective destination either way, and offers "forget"
only for a folder somebody actually chose.
813 tests pass.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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**Downloads were going through RAM.** `_openDownloadTarget` tries a granted
folder, then a service worker, then its floor: collect the whole file in the
page and hand the browser a blob. Both of the first two are absent in the
desktop application — `showDirectoryPicker` does not exist, and Chromium refuses
a service worker on a custom scheme — so every download under 512 MB took the
floor. A gigabyte of film meant a gigabyte of RAM, and the only visible symptom
was a Save As dialog at the *end* rather than the start, which is what the
operator noticed and asked about.
The main process now streams to disk: it honours "save automatically" with a
folder chosen once and no dialog, never overwrites (a colliding name gets a
suffix), awaits each write so the renderer cannot outrun the disk and queue the
file in memory anyway, and unlinks a cancelled download rather than leaving a
truncated file that looks complete to whoever opens it next. Settings now offers
the native folder picker instead of saying downloads are unsupported.
Measured in the running application: the file on disk grows 256 KB → 512 KB →
768 KB → 1 MB as the chunks arrive, and an aborted download leaves nothing
behind.
**A permanent scrollbar on sign-in.** `.layout` and `.page-center` each reserved
`100vh - 52px`, and `.page-center` sits inside `main`'s 24px vertical padding —
so the page overflowed by exactly 48px at every window size. Found by measuring
in the app rather than reading the stylesheet: `scrollHeight` 819 against a 771
viewport, then the bottom edge of every element. The centring page brings its
own padding, so main's is dropped for it and the duplicated arithmetic goes
rather than growing a third term. Now `scrollHeight == innerHeight`, no
overflowing elements.
**The first-run screen was unstyled.** It used a class name I invented
(`auth-page`) that appears nowhere in the stylesheet, so it had no card and the
button sat against the input. It now uses the same `page-center` + `login-card`
markup as sign-in, which is where the 12px gap comes from. The sign-in link in
the nav is hidden until a hub is chosen — it led to a page that could not work.
809 tests pass.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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All three came from the operator running the application on Ubuntu GNOME. None
would have been found by anything already in the suite.
**A second copy of the hub address.** `keyderive.js` carried
`const HUB = '' // same origin` — true of a page the hub served, false of one
loaded from a package, where the origin is `app://meshbay` and `/v1/users/register`
resolves against the application's own protocol handler. **Sign-up and sign-in,
the first two things anybody does, failed with "Not found."** The seam was
changed in `app.js` and in the signalling call and this was missed: the same
shape as the duplicate `MNP_VERSION` in `protocol.py`, a second copy of a
constant that is harmless until the context changes. `test_hub_address_seam.py`
refuses any file that decides where the hub is, and any `fetch('/v1/…')`
relative to the page origin.
**A window handler reading a variable another path reassigns.** Changing the hub
closes one window and opens another; `closed` arrives *after* the replacement is
assigned, so the outgoing window nulled the reference to the incoming one and
its `ready-to-show` crashed on it — a modal "A JavaScript error occurred in the
main process". Every handler now belongs to the window it was created with. The
CDP test wrote `config.json` in advance, so it never took the one path that
creates a second window; it does now, starting from an empty user-data dir.
**A first run that could not be undone.** The hub address was accepted on
anything URL-shaped and there was no way to change it afterwards — the prompt
only appears when none is set, so a typo meant editing JSON by hand. `https`
typed at a hub speaking `http` produced `TypeError: fetch failed`, which names
nothing. Now: the address is probed before being written, failures say which
URL and why ("does not speak https. If this hub is on your own machine, it is
probably http"), Settings can change it, and Electron's
"Error invoking remote method" wrapper is stripped from what a person reads.
Verified on the operator's desktop: **safeStorage really uses the GNOME
keyring** — Settings reports `gnome-libsecret`, and `secrets.bin` is written
0600 with Chromium's `v11` prefix, the marker for keyring-backed encryption
(the fixed-key fallback writes `v10`). Headless, the same code reports
`unavailable` and refuses to store rather than downgrading in silence, which is
now explained in Settings instead of shown as a bare word.
Unrelated but found while testing: `test_locales.py` assigned to
`globalThis.navigator`, which is read-only from Node 22. The client's build
already requires Node 22+, so the first CI machine configured for it would have
failed these tests for no visible reason. 809 tests pass on Node 18 and Node 24.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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D4. The passphrase stays the account's credential and its only recovery path;
what changes is that it is not asked for on every launch.
**The renderer never holds the device key.** It is generated, stored and used
entirely in the main process, which signs `meshbay:user_auth:<username>:<ts>` on
request. Same rule as the save dialog, for the same reason: the renderer is the
part of this application that parses decrypted content from nodes, which is
attacker-controlled input. And this key is *not* a per-node identity key — those
are generated per node and never leave that relationship, so nothing here
correlates a person across operators.
First run asks which hub, with no default. A client that picks its own hub is a
client that can be pointed at one, and the address is the whole of what this
application trusts a hub for — the interface comes from the package.
Verified against a hub running this code, not against the deployed one:
register 201 → passphrase login 200 → device register 201 → **device sign-in 200
with a real session** → `/v1/users/me` 200 → a stranger's key 401. The
signature was also checked directly against the hub's own Python verifier before
any of that.
Inside the running application, over the debugging protocol: the bridge reaches
the main process, the renderer calls the hub **through it** (200 — the CORS fix
working end to end), and a call to a host that is not the configured hub is
refused.
**Not verified:** safeStorage persisting the key. This session has no secret
service, and standing one up in xvfb did not succeed. The application behaves
correctly there — it *refuses* rather than storing unprotected, and now says so
in Settings, which is a real case rather than a hypothetical one since it is
exactly what a headless or minimal desktop looks like.
Worth remembering for next time: meshbay.org runs whatever was last deployed. It
answered 405 on the Stage-C endpoints and reported MNP 0.2 while the tree had
0.3, so a local `uvicorn meshbay_hub.app:create_app --factory` on SQLite is what
tests hub changes. Nothing was deployed to production for this.
799 tests pass; e2e.py passes end to end.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Electron 42 / Chromium 148, launched under xvfb. The packaged interface mounts
over `app://` with a secure context, `crypto.subtle` present, Argon2 WASM
loaded, and no console errors. Three statements in the design were wrong, and
only launching it found them.
**A CSP in a `<meta>` tag silently drops `frame-ancestors`.** Chromium says so
in the console. A policy carrying a directive that does nothing is worse than
one without it, so the policy is sent as a header by the protocol handler —
which is also the only thing serving the interface, so one source instead of
two.
**`secure: true` is not what makes the service worker register.** Chromium
refuses a worker on a custom scheme whatever its privileges: "The URL protocol
of the current origin ('app://meshbay') is not supported". The application has
no service worker and needs none — it saves through a native dialog, which is
the better of the two paths. `sw.js` stays in the package because the same files
serve the browser, where it is one of only three ways to write a large file.
What `secure: true` is actually for was measured at the same time: without it
**the whole of `crypto.subtle` is undefined**. The first probe loaded a `data:`
URL and every algorithm failed with TypeError, AES-GCM included — which is why
the probe was rewritten before believing its answer. X25519 and Ed25519 are both
present on Chromium 148, settling the version floor left open as O6.
**The renderer cannot call the hub.** Its origin is `app://meshbay` and CORS
refuses it. The hub has *no CORS middleware at all* — its API is reachable from
no web origin whatever — and that is worth keeping. Widening it for
`app://meshbay` would be worse than it looks: that origin is not a credential,
since any Electron application can claim the same scheme and host name.
So every hub call leaves from the main process, exactly as saving a file does,
and it refuses any origin that is not the hub the user signed in to.
`platform.apiFetch()` is `fetch` in a browser and the bridge in the application,
so no caller has to know which it got. `transport.js` reaches it through a
global because it is a classic script, not a module — the alternative was a
second fetch path, which is how two callers of one hub start disagreeing about
how to reach it.
Verified from inside Electron: the main process gets 200 from
/v1/hub/version, the renderer is refused by CORS, and **a script served by the
hub is refused by the policy** — T3's mitigation demonstrated rather than
asserted.
Build note, written into the README because it will bite the next person:
**Ubuntu 24.04's nodejs 18 cannot install Electron at all** — the download
script `require()`s an ESM module, which Node gained in 22. Node 24 LTS,
checksum-verified against nodejs.org, is what this was built with.
package-lock.json is committed; builds use `npm ci`, not `npm install`.
799 tests pass, e2e.py still passes end to end. The session harness needed a
platform stub: it lifts `hubFetch` out of app.js as text and runs it, so the
adapter is now part of the environment it models.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Stage D, and the honest half of it.
D1 — the seam (done, and verified)
----------------------------------
`static/platform.js`. `HUB` becomes `platform.hubBase()` and the transport is
built with the same base, so one address has one source. In a browser it returns
'' and every path stays relative to the origin that served the page — the
acceptance criterion for this split was "the browser SPA behaves identically",
and it does. `platform.js` joins `_ASSETS`, or a change to it would not move the
content hash and a cached browser would never ask for it.
D2 — the shell (written, never launched)
-----------------------------------------
**There is no npm on this machine. Electron was never installed and
`packages/meshbay-client/` has not been run once.** That is stated here rather
than discovered later.
What is there: a main process serving the packaged interface over a privileged
`app://` scheme (`secure` and `standard` are not cosmetic — without them the
service worker refuses to register and streamed downloads break silently), a
preload exposing an enumerated bridge that never passes a filesystem path, a
window with `sandbox`, `contextIsolation` and no node integration, navigation
away from the package refused, and a CSP where the hub is reachable over
connect-src and is not a script source. The hub address arrives as a process
argument because `platform.hubBase()` runs before anything can await.
`test_desktop_shell.py` pins each of those by reading the source — the treatment
`test_downloads.py` already gives the three browser save paths. It catches a
property being removed and proves nothing about the application running. Two
were checked by breaking them.
The interface is *copied* into the package by `build/sync-ui.js` from the hub's
static directory, and `ui/` is gitignored: a silent fork is the only real way to
end up maintaining the interface twice.
D3 — partial
------------
The bridge, and the part worth having now: safeStorage's backend is reported
rather than assumed. On Linux it falls back to a fixed key when no keyring is
running, silently — someone who believes the OS is holding their keys is told
when it is not. The native key lifecycle belongs with D4 and needs a running
application to mean anything.
D8 — partial, and a real defect found
--------------------------------------
`meshbay-node.spec` installed the SYSTEM template — the one carrying `User=%i` —
into `%{_userunitdir}`. A user unit already runs as its owner and cannot carry
`User=`; systemd refuses the file, so the packaged unit could never have
started. Nothing noticed because nobody had built and installed the RPM.
Two units now: the template to `%{_unitdir}`, and a new `meshbay-node-user.service`
that a person enables themselves without a password — which is what lets the
desktop client install a node without asking for one. It carries ExecReload, so
`meshbay-node reload` does not have to stop a service somebody is streaming from,
and documents the drop-in for a drive outside the home, RequiresMountsFor
included.
798 tests pass; e2e.py still passes end to end. Nothing here was built or
launched: no npm, no rpmbuild.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Stage C. Identity keys are per node, so a browser and a desktop client are two
keys on one account there — and the node refused the second where it accepted
the first. Without this, an account created natively could never be opened in a
browser without an operator code per node, and "a native client must not prevent
web use" would have been dead on arrival.
Device linking (node)
---------------------
`identities` is keyed by `(user_id, pk_ed25519)` instead of `user_id` alone. The
old shape did `INSERT OR REPLACE`, so a second device overwrote the first
silently; SQLite cannot change a primary key in place, so the table is rebuilt.
Existing pins are carried over — verified against a live roster with 10 of them,
nobody re-pairs.
A new device files a request bound by `sha256(code ‖ its own keys)`, and a key
the node **already pinned** countersigns it. The hub cannot: it has stored no
user keys since 2026-08-14, which is what makes this safe to do without an
operator in the loop.
**The code never reaches the node.** It lists this account's pending requests
with their stored hashes; the approver recomputes and keeps the match. A node
offering fabricated keys would have to produce a hash over a code it has never
seen. Nothing rests on a human comparing digits — that ritual was dropped in
12.1 as "correct, unusable as the default" and must not return by the back door.
The design document had the approver look a request up *by* its hash, which is
circular: computing it needs the keys being asked about. Corrected in both.
Revocation marks rather than deletes, because a deleted row is a key the node
would happily pin again — which is the laptop somebody just reported lost. Your
last device cannot be revoked: coming back would need an operator's code.
Hub — the only change in the whole plan
---------------------------------------
`POST /v1/users/auth` signs in with a device Ed25519 key, on the same pattern as
`/v1/nodes/auth`, plus `/v1/users/devices` to register, list and retire. New
`user_devices` table with an Alembic migration, because `create_all()` is not
one.
This is **not** the key directory that was H3, and the tests say so: nothing
reads it but the hub, no group key is ever wrapped for one, and it is a
different key from the per-node identities. What it does cost is metadata — the
hub now knows how many devices an account has and when each last signed in.
Also `client.minimum` / `client.recommended` in `GET /v1/hub/version`: an
installed client meets a newer hub the day the interface ships in a package, and
that is cheap now and awkward to retrofit.
Browser
-------
The `key_changed` refusal becomes `unknown_device` and offers a linking code
instead of telling someone to find their operator. The Members panel lists this
account's devices here, approves one by code, and retires one.
773 tests pass. `e2e.py` gained a step that links a device end to end against
the live deployment — file, list, recompute, countersign, then open the group
with the new keys and no code — and it also gained `recv_type`, because a step
that assumes the next message is its own answer reads an ack left by the step
before.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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A design discussion on 2026-08-17 settled Phase 13 and, in doing so, changed
four things the spec states. v6 restates only those; v5 stays authoritative for
everything it does not touch, per the convention v5 itself used with v4.
What changed:
* The native shell is **Electron**, not pywebview — structural decision 18
reversed. The SPA depends on Chromium-class APIs (WebRTC, WebCrypto
X25519/Ed25519, MSE, Service Workers), so keeping Chromium keeps
transport.js, crypto.js, keyderive.js, downloads.js and sw.js *as the
client*. A system webview meant reimplementing ~2500-3000 lines. The old
"69 % reused" figure was measured against an app.js of ~2600 lines; it is
4586.
* A group's content is **several named roots**, not one directory, because
the planned video and audio libraries will not live in one folder on one
disk.
* **Device linking**: one person may hold several devices on a node,
admitted by a key the node already pinned and bound by a one-time code the
new device generates. Without it a native client is refused where a browser
is not, and an account created natively could never be opened in a browser.
* **Authorship is authenticated, not asserted** — chat senders sign, uploads
have a provable owner, and delete authorization moves from the uploading
key to the account.
And one rule v5 assumed without writing down: **group-related server state
lives on the node.** Verified for multi-root — SwarmSource carries hashes and
endpoints, no paths.
Also here: the Caddy configuration, which was a snippet in the roadmap that
would have broken the SPA (it predates /a/<hash>/ asset versioning and would
have 404ed /sw.js, silently killing streamed downloads on Firefox and Safari);
and downloads.html, which becomes a security page once a release key exists.
Phase 15 was re-read against device linking and is wrong as written: a sender
key must be per **device**, never per person, or two devices sharing a chain
produce key and nonce reuse — C1 again, one level down. senderkeys.py already
fails this silently.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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USERGUIDE said an hour in five places and presented renewal as something the
reader does with curl. Both are now wrong: it is four hours, the web app renews
for itself, and the endpoint rotates — so anyone driving it by hand has to store
the refresh token that comes back, or their next call revokes the family.
Also corrects what the token's life actually bounds. It is not how long a
revocation takes: the hub reloads the account on every request and refuses a
suspended one at once, and it pushes signed revocations to nodes. What remains
is a leaked token on an account still in good standing, which is the reason to
keep the number small.
Two lessons in CLAUDE.md. A rotated refresh token has to be stored or it is
spent once. And an effect keyed on a value that used to be constant: the WebRTC
dial listed `token` among its dependencies, harmless while a token only ever
expired, fatal once the session renewed itself — it tore the connection down
mid-handshake and the node waited for ever. That and the hook declared after its
own dependency are the same shape, and worth naming as one: code that reads
correctly on its own and is wrong against the component lifecycle.
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Reported: on mobile you see only the right-hand edge of the panel, without the
content. Measured, before anything was changed:
320 px viewport -> panel at -138..192, 138 px off the left
360 px -> -98..232
412 px -> -46..284
The panel is 330 px wide and anchored to the right edge of its button — but
that button is not at the right edge of the screen, since the bell and the user
menu come after it. What falls off is the left-hand side, which is where the
file names are, so what stayed on screen was a strip of progress bars belonging
to nothing.
Narrowing it would not have helped: the overflow comes from where the right
edge is pinned, not from the width. Below the existing 768 px breakpoint the
panel is anchored to the viewport instead, full width on a phone and capped at
420 px on a tablet, where stretching two filenames across 750 px would be
silly. Desktop keeps its 330 px against the button.
The interesting part is how it was found. The responsive tests read numbers out
of the stylesheet and said, in their own docstring, that a layout could not be
measured because the suite had no browser. It has one now — Chrome, from the
video work — so layout_probe.py renders the real stylesheet at a given width and
returns rectangles. `width: 330px` was never the thing worth asserting on.
An iframe carries the viewport, because a headless window will not go below
about 500 px, and one browser measures every width: launching one per test put
three minutes on the suite against twenty-six seconds for all of them. Checked
that the new tests fail with the rule removed — three of them do — and that
they pass with it back.
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`const a = useCallback(fn, [b])` evaluates `[b]` where it is written, so a `b`
further down the component is still in its temporal dead zone. ReferenceError on
every render, before anything the component does can run — and the symptom is
the component simply not appearing. Clicking a video did nothing at all: no
picture, no error on screen, nothing in the node's log because nothing was ever
requested. It reached production.
Nothing caught it. `node --check` passes, the code is well-formed. Worse, the
MSE harness extracts the player functions into an order of its own and therefore
*reordered* them before running — quietly repairing the one class of defect it
was best placed to catch. It sorts by position in the file now, and
test_hook_ordering.py checks the property directly across the whole SPA. Both
the rule and the harness are checked against the layout that actually shipped.
test_video_seek.py covers the rest of seeking, and window_leak.mjs forces the
race that made the third seek hang: the whole in-flight window arriving while
`reinitAt` is still awaiting. Before, the player is left believing eight
segments are in flight and grants nothing; after, the window comes back. A run
that happens to work proves nothing about a race, which is the point of forcing
the worst case rather than trusting a longer session.
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Five lessons, and the first is the expensive one: a test that models a fix
agrees with it by construction. The buffer-ceiling test passed against a player
that still hung, because the model and the fix had the same author and the same
misunderstanding.
Also: `no-cache` only binds a browser that asks; redeploying during someone
else's test kills their session and truncates the log holding the reproduction;
`updateend` fires for `remove()`; and flow control on a media stream is a
window, not a debt.
USERGUIDE section 7 rewritten — it still described 24 segments in flight and
two transcode slots, and said "transcode" where ffmpeg does a `-c copy` remux,
which is exactly why a slot costs little and why 500 MB really does go on the
wire.
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Six lessons, each of which took a deployment and a user's patience to locate.
Five are the same shape: something that fails silently and looks like something
else. The asyncio task nobody holds, `proc.wait()` deadlocking on a pipe it will
not read, a peer whose loss is noted but not acted on, a service worker that is
active without controlling the page, and a React setter that outlives its state.
The sixth is about method: `node --check` validates syntax and not names, and
`e2e.py` is a second implementation of the client rather than a test of this
one. Neither caught any of the above. Source-reading tests are weak evidence and
are the only evidence available for the SPA — so prefer ones that re-derive a
value from the source over ones that restate it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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French, Spanish, Brazilian Portuguese, Simplified Chinese, Japanese,
German, Italian, Dutch and Polish, all in the formal register. `hub`,
`node` and `GEK` stay in English: they name the CLI, node.toml and the
docs, and translating them would cut the interface off from everything an
operator reads and types.
Catalogues move out of i18n.js into locales/, one file per language,
fetched with a dynamic import. A visitor downloads their language plus
English as a fallback — about 36 KB rather than the ~180 KB that ten
inlined catalogues would have cost everyone. i18n.js keeps only the
loader, so the first render now waits for initLocale().
Three things the old code got wrong, none of them visible until there was
a second language:
- Resolution trimmed a tag to its base before matching, so a browser
reporting pt-BR looked for a `pt` catalogue that does not exist and fell
back to English. Matching is now exact first, then by base language.
- Counted strings were single strings, so Polish could not express
1 plik / 2 pliki / 5 plików at all. t() selects through
Intl.PluralRules; en.js gains the same treatment, which incidentally
fixes "1 files".
- Interpolation used String.replace, which reads `$&` in the replacement.
A file named rap$&sody.mp3 rendered corrupted in its own delete dialog.
Five strings were still hardcoded in app.js — the group name placeholder
and the four visibility/join-policy descriptions — and are now keyed.
test_locales.py holds the nine translations to the shape of en.js: same
keys, a counted string stays counted everywhere, every plural entry covers
each category Intl actually produces for that language, and the
{placeholders} survive translation. Verified failing first, against a
catalogue with a key removed, a placeholder dropped and the Polish `few`
form deleted.
The language menu also grew from one entry to ten, which overran a short
viewport inside a dropdown that clipped instead of scrolling.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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The download-to-disk story is three mechanisms — File System Access in
Chrome, a service worker streaming a response in Firefox and Safari, a
blob as the floor — and no test in this repository exercises any of them.
test_downloads.py pins their contracts by reading the source; whether a
browser really writes to disk needs a person with a large file.
One now has: Firefox, 180 MB, written to disk rather than assembled in
the tab. That is the path worth confirming, since it is the only one
Firefox has and it was written blind. It is also not the scale it exists
for, and the guide says which rows of that table are measured and which
are still only designed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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A description could only be set the moment a group was created, so every
group made before anyone thought of one stayed blank for good. The owner
can now edit it from the group's page, and PATCH /v1/groups/{id} takes it.
That endpoint takes the description and nothing else, deliberately. The
name, the visibility and the join policy are the terms members joined on;
a private group that can quietly become public is not the group they
agreed to be in. Changing those needs a decision about who gets told, not
a field on a form — there is a test saying so.
Separately, the legacy operator key is gone. `admin_pk_ed25519` in
node.toml named the operator before the roster existed and was kept so
that an existing deployment would keep working; nothing uses it, and a
second source of node authority is not something to carry around out of
politeness. Authority is the roster, read fresh on every check.
It is removed rather than ignored: a config that still names the key gets
a warning at startup pointing at the file. Dropping it in silence would
refuse invites and file deletion with a signature error that looks like a
bug somewhere else — which is exactly how finding M3 presented.
Two tests were verifying admin operations by naming a key in the context,
which was the legacy path. They now pair an operator into a roster, the
way an operator does. The authority test anchored on the deleted function
and passed vacuously once it disappeared; it states the invariant against
the verifier and the daemon instead.
Also defined .btn-secondary, used in four places and styled in none.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Account deletion is the headline, in the user guide and in draft-v5 §6.1,
and the important half is what deletion does *not* do. It releases the
username, clears the email and password hash, drops memberships,
notifications, refresh tokens and node registrations, and refuses any
access token still inside its hour. It does not touch a node: files, the
pinned identity and the keypair bundle stay on machines the hub does not
command, which is the same sovereignty §5.5 relies on — so deleting a hub
account is not an erasure request to the operators hosting you. The IP log
survives too, attributable, for its legal retention period. The claims
table in §2 gets a row saying exactly this, adversary by adversary.
Notifications get a section: one entry per conversation rather than per
message, never one for your own message, invitations that clear when you
join, muting that lives on the hub so it works from any browser.
Then the corrections, which is most of the diff. The guide still described
a node HTTP API — `GET /index`, `GET /file/{id}`, an HLS playlist, and a
`player.js` that does not exist — with curl examples inviting the reader
to expose port 19001. That surface was removed in 0.2.0 as findings C1 and
C6, precisely because it served files outside the handshake that decides
what a peer may see. Sections 6, 7 and the API reference now describe MNP
message pairs, and the quickstart says the same in French. Also corrected:
the JWT table advertised a `pk_user` claim that no longer exists (it was
what let the token issuer decide who could delete a file), `/pubkeys` no
longer returns identity keys, and the GEK-distribution endpoints are gone
entirely rather than merely unused.
draft-v5 §5.2 had uploads landing in `.uploads/{user_id}/`; they land in
`uploads/`, chat attachments included. §6.1 now says the hub learns the
author's user_id from chat_notify — a stable identifier, and a metadata
leak worth naming rather than leaving as "by whom".
CLAUDE.md records why the deployed hub broke this week: create_all()
creates missing tables, never missing columns, so a schema change passes
every test (fresh DB per run) and never reaches production.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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USERGUIDE said registration submits your public keys "so other members can wrap
GEK bundles for you". Both halves are wrong now: registration creates an account
and nothing else, and nobody wraps anything for a key fetched from the hub. The
API reference and the register body followed the same correction.
CLAUDE.md gains the block a future session needs before touching registration or
anything shaped like a user's public key: keys are born at first contact with a
node and stay there, the hub publishes none, tokens carry no pk_user, and a
scripted signup is now a real account.
Left alone deliberately: first-review.md, docs/poc-v1*.md and poc/spike-results.md
still describe the old JWT and registration. They are records of what was true on
their date, like second-review's verdict table, and draft-v5 is what states the
present.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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draft-v5 §7 rewritten around the keypair bundle, because that is where the last
open finding actually lives. New §7.1 states the adversary (an operator holding
their own node's disk), what cracking a bundle yields (identity keys, hence
content on *other* nodes and the ability to sign as that user — not the content
they host in the clear by design), and the measured numbers rather than
adjectives: PBKDF2 241 ms vs Argon2id 88 ms natively, a GPU ceiling moving from
~8k to ~2k guesses/s, six days for a 10⁹ dictionary run, four random words
outlasting the sun. The honest summary is in there too — a factor of four on one
card, not a thousand; what it buys is the cost of scale.
§2 gains the row the table never had: **your identity keys stay yours**, ⚠️
against a malicious node operator. An operator hosts your content by design, and
that was documented; that they can also try to become *you* was not. That is the
difference between reading what they host and reading what other operators host.
§4 records that the challenge now carries `node_pk`, why (a first-time member
signs a transcript naming the node and has no GEK to complete a handshake with),
and that it is checked against the ack rather than trusted. Also that refusals
carry a code, and what `not_a_member` usually means.
§8.1 states the multi-browser property plainly — one identity across browsers,
recovered with the passphrase, no second code — together with its cost, since it
is the same mechanism as C4.
invite-pairing-v1 is no longer "a proposal": it shipped. §9bis gains the four
browser-found failures and their common thread — e2e.py is a second
implementation of the client, written in the right order by construction, so it
proves the protocol and nothing about app.js.
CLAUDE.md gets the two things a future session must not rediscover the hard way:
the KDF parameters live in three places held identical by a parity test, and an
unbounded await on the hub socket makes a node silently unreachable (three found).
second-review: C4 marked reduced, not closed. devel-phases-next: 12.2's CSP must
keep `wasm-unsafe-eval`, or the strict policy locks every user out of their keys.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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draft-v5 §2: against an active hub, reading content moves from "❌ H3" to
"❌ T3 (browser) · ✅ native". The defensible sentence becomes "the hub cannot
read your content unless it ships you malicious client code" — T3 is now the only
path, it is an artifact rather than a silent directory lie, and it does not exist
for a native client. New §5.5 describes admission and key delivery, with the four
properties that carry it and the one exception (open-join groups, where the hub
can walk in the front door — a property of open joining, and the setting is read
from node.toml).
Corrected while writing it: §5.1 said the C5b fix stopped a group admin who does
not run the node from inviting, and that the redesign reverses this. It does not,
because delegation was deferred. What changed is the timing — the operator issues
a code and is then out of the loop.
devel-phases-next: 12.1 is done and NOT as written. The plan was key transparency
plus safety numbers; what shipped removes the directory read instead. Safety
numbers make substitution detectable by a human who checks, at first contact,
when there is nothing to check against. 12.2 (served-SPA integrity) is now the
highest-value item in that phase. Phase 14 marked for what landed.
second-review: H3 and M3 annotated closed at the finding, with what actually
closed them. The §7 verdict table is left intact — it is the record of an audit
on a date, and falsifying it would be worse than leaving it — with a note
pointing at draft-v5 §2 for current state.
CLAUDE.md matters most here, being loaded every session: NS4 read "admin_pk_ed25519
auto-pinned from keystore ✅ DONE", which is M3 described as a feature. Rewritten,
with the two fixes that must never be attempted (auto-pin, hub lookup).
QE/deploy/README.md: set-admin-pk retired from the walkthrough; the regression
checklist now exercises pairing, joining by code, recognition without a code, and
revocation.
USERGUIDE.md is beyond the invite work but was actively wrong: it told users to
POST GEK bundles to a hub endpoint deleted in Phase 12, and to re-wrap for every
remaining member on revocation. Both replaced with what the code does.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Supersedes draft-v4, which described a system the code did not implement and
made several claims that were simply wrong — "ALL operations require the GEK
proof" (true on one of four transports), "Argon2id 256 MB" (hub only), "hub
stores no content metadata" (private file hashes were registered with it).
Written as a delta over v4: sections not restated are unchanged. Carries an
explicit rule — a claim must name the adversary it holds against — and a
per-adversary table replacing v4's informal assurances.
Records the decisions: transport (aiortc primary, QUIC retained, TCP and the
node HTTP API removed), unified handshake with mutual authentication, admin
operation transcripts, node authority over GEK storage and activation, upload
confinement, hub node-registration and signaling authorization, and the client
architecture — hub keeps serving the web SPA, native client offered alongside,
hub minimization deferred.
States plainly what is NOT true. The defensible claim is "the hub cannot read
your content unless it actively attacks you", not "unreadable by other parties,
even the hub": H3 (hub is the key directory and can substitute a key at invite
time) is open until Phase 12.1, and T3 (hub serves the SPA) is accepted
permanently by decision. Content is also readable by every group member and by
the node operator, so "end-to-end" here means client-to-node, never
client-to-client.
Corrects the v4 NAT traversal account: punch_nat() is a single UDP probe with
no STUN, no candidate gathering and no fallback, validated on one ISP. ICE is
the traversal path, including for native clients.
Open items listed with status, including C6 on the QUIC path.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Second architecture and security review (second-review.md): 6 critical and
7 high findings against the Phase 12 implementation, plus an assessment of
whether the system meets its end-to-end confidentiality claim.
Roadmap rewritten against those findings (devel-phases-next.md): new blocking
Phase 11.5 (security remediation), Phase 12 (hub minimization), Phase 13
(native desktop client). Old phases 12-17 renumbered to 14-19.
tmp-decisions.md records two open decisions: whether the hub keeps serving
the web UI, and browser extension vs native desktop client vs both.
CLAUDE.md and devel-phases-next.md also carry pre-existing Phase 12 edits from
the working tree that could not be cleanly separated from the review changes.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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The node daemon was previously a skeleton that only started QUIC/TCP
servers and the local web UI. All browser-facing functionality (WebRTC,
hub WebSocket, chat store, HTTP file API) lived in QE demo scripts.
This rewrites daemon.py to be fully self-contained:
- WebRTC transport for browser clients (aiortc DataChannel)
- Hub WebSocket task (signaling, revocations, WebRTC offers)
- ChatStore per group (SQLite in ~/.local/share/meshbay/)
- HTTP file API per group (create_http_app on configured port)
- Graceful shutdown (all transports, stores, tasks)
- hub_client: _ws tracking + send_ws() for chat notifications
- config: data_dir field for persistent state
- systemd: security hardening (ProtectSystem, StateDirectory)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Replace download-then-play VideoPlayer with MSE (MediaSource Extensions)
streaming. Node remuxes to fMP4 via ffmpeg, probes codecs with ffprobe,
and sends encrypted segments over DataChannel. Browser decrypts and
appends to SourceBuffer — playback starts within seconds.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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search)
Six self-service features for the web SPA:
- Group creation UI with GEK auto-generation (AES-256-GCM ECIES)
- Member management + invite by username (GEK wrapping for invitee)
- Open group self-join flow (POST /v1/groups/{id}/join)
- File upload client→node (FILE_UPLOAD MNP type, .uploads/ staging)
- IndexedDB caching of group file indexes (instant display on revisit)
- Cross-group file search (SearchPage, pure client-side on cached indexes)
11 new tests (166 total): 8 group self-service + 3 AES GEK wrap/unwrap.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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- 10.5: Notification model + CRUD API (list, mark read, mark all read)
Triggered on: group invite, role change, suspend/unsuspend
- 10.6: SettingsPage shows role, per-group notification mute (localStorage)
- 10.7: GET /v1/groups?q= search filter (ilike on name)
- 10.8: NotificationFeed on home page + bell with unread badge in navbar
- 10.10: GET /v1/hub/version endpoint for client update checks
- 8 new tests (test_notifications.py), 155 total
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Complete browser-based client: Preact SPA with login, group file browser,
encrypted download, video playback, group chat, i18n, and dark/light theme.
Browser connects P2P to nodes behind residential NAT via WebRTC DataChannel
(aiortc). Hub handles signaling only — all data flows E2E.
Performance: pipelined downloads (8-chunk sliding window), binary msgpack
wire format (no base64), redundant I/O elimination. Large file downloads
stream to disk via File System Access API (showSaveFilePicker).
Validated on SFR + Orange residential NATs, Chrome + Firefox, IPv4/IPv6.
132 tests passing. Deployed to meshbay.org + Orange node.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Browser clients can now connect P2P to nodes behind residential NAT via
WebRTC DataChannel with ICE/STUN. Validated on SFR Port-Restricted Cone
NAT + 4G CGNAT across three scenarios (WiFi LAN, 4G IPv6, 4G IPv4 STUN).
No TURN relay needed. Hub serves only as signaling relay (<1 KB).
New files:
- webrtc_server.py: aiortc-based WebRTC transport (node side)
- signaling.py: SDP/ICE relay endpoint (hub side)
- transport.js: browser WebRTC client with msgpack framing
- webrtc-test.html: spike test page for browser→NAT→node validation
- test_webrtc_transport.py: 4 tests (handshake, file transfer, auth, guard)
- meshbay-draft-v4.md: architecture spec updated for web client
Modified:
- hub_client.py: WebRTC offer handling via hub WebSocket
- revocation.py: node_id from WS auth + webrtc_answer routing
- pyproject.toml: aiortc>=1.9 dependency
123 tests passing (117 existing + 6 new).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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8.1 Config-based admin authz (require_admin on all admin endpoints)
8.2 Email encrypted at rest (AES-256-GCM, HKDF from hub Ed25519 key)
8.3 Refresh token rotation with family-based reuse detection
8.4 Federation persistence (HubPeer model replaces in-memory dict)
8.5 Federation token verification now async (DB-backed)
8.6 CSAM hash check wired into swarm registration flow
8.7 Rate limiting on auth endpoints (5/10/20 per minute)
8.8 Healthcheck endpoint (GET /v1/health, no auth)
8.9 IP log cleanup background task (365-day retention)
8.10 Argon2id params bumped to 256 MB (pw_version, rehash on login)
Deployed to meshbay.org — schema migrated, existing emails encrypted.
117 tests pass (29 hub, 88 common+node).
Resolves security review items S1, S2, S5.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Implements all 8 milestones (7.0-7.7):
- 7.0: JWT carries `groups` claim; node verifies group membership at
MNP handshake (QUIC + TCP+TLS). Resolves security review C2.
- 7.1: QUIC 0-RTT session resumption via stored session tickets
(17-21ms reconnect vs 47ms cold).
- 7.2: Hub→node WebSocket signaling for NAT punch coordination
(`client_incoming`/`punch_ready`) + jti denylist push. Denylist
class blocks revoked users/jtis at handshake.
- 7.3: Multi-group daemon — one QUIC port serves N groups with
per-group GEK, shared_root, and index routing.
- 7.4: HLS streaming via QUIC (STREAM_SEGMENT message type, ffmpeg
segment extraction).
- 7.5: Sender Keys protocol for group chat (Signal Groups approach).
Each member has own sending chain key, HKDF chain ratchet, AES-256-GCM
encryption, Ed25519 signing. Resolves security review C1.
- 7.6: Chat store (SQLite via aiosqlite), CHAT_MESSAGE MNP wire type
with peer broadcast, web UI with WebSocket push.
- 7.7: Argon2id calibration CLI.
First security review included (first-review.md). 109 tests, demo-v3
validated against meshbay.org production hub.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Port-Restricted Cone SFR, punch_nat() mechanism, 12.7s handshake note.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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meshbay-node/pyproject.toml: add aioquic>=1.0 (was commented 'v2'),
websockets>=12.0 (revocation push). Both are production code since Phase 5.
meshbay-hub/pyproject.toml: add aiosqlite (tests without PostgreSQL),
slowapi (rate limiting), websockets (revocation push), PyJWT (explicit).
transport/__init__.py: QUIC imports wrapped in try/except — node works
without aioquic (TCP+TLS + HTTP fallback). QUIC_AVAILABLE flag exported.
QUICKSTART.md: replace manual pip list with 'pip install -e' that pulls
all deps from pyproject.toml automatically. Add dependency table.
CLAUDE.md: clarify that all deps go in pyproject.toml, not manual installs.
81/81 tests.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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Root cause: certifi.where() in the Fedora venv points to
/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem which does not
exist on Ubuntu. 'python3 -m venv .venv' without --clear keeps the
Fedora certifi paths. Fix: always use --clear when recreating a venv
on a different OS.
Documented in QUICKSTART.md and CLAUDE.md.
rsync command updated to exclude .venv/ (in QE/server-state, not versioned).
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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pip + Python 3.14 fails with FileNotFoundError in certifi.where() on fresh
venvs (truststore bug). Fix: SSL_CERT_FILE pointing to system CA bundle.
Documented in CLAUDE.md (Python environment section) and QUICKSTART.md.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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CLAUDE.md: add QE/ to structure, key modules table, server state reference,
security rule updated (QE/ not keypair files), meshbay.org inventory pointer.
devel-phases.md: add milestones 6.6-6.9 (keyderive, bundle, demo scripts,
QUICKSTART rewrite). 81/81 tests.
docs/meshbay-draft-v3.md §6.1.1: new section documenting 3 key generation
strategies (Argon2id CLI, WebCrypto browser+bundle, keystore file) and the
algorithm mismatch caveat between CLI and web registration paths.
docs/USERGUIDE.md §2 Register+Login: replace "generate and persist before
registering" warning with the two clean strategies (derive_keys_from_password
for CLI, keyderive.js + keypair_bundle for browser). Login response updated
with keypair_bundle field.
hub/models.py + users.py + Alembic migration: keypair_bundle column on User,
stored at registration, returned at login (web clients only).
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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3-package layout: meshbay-common (shared crypto/protocol),
meshbay-hub (FastAPI server), meshbay-node (local daemon).
Includes validated POC spikes 1-6 in poc/, architecture drafts
v1/v2 in docs/, and CLAUDE.md project conventions.
All cryptographic primitives extracted from POC into
meshbay_common/crypto.py (GEK wrap/unwrap, chunk key derivation,
keystore encryption, chunk signing).
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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