Commit Graph

8 Commits

Author SHA1 Message Date
Homer 7ebdc9c722 A version that was not two spellings of itself
The Updates page read "v1.0.0 (reports 1.0.0)". That note exists to warn
that a tag was cut before the version bump -- a release nobody can
identify afterwards -- and it was firing on two ways of writing one
version, because `git describe` answers with the tag's name and tags here
carry a `v`.

Stripped in `_describe`, where `resolve_target` has always stripped it and
where the docstring already promised the stripped form. The mismatch check
then compares two things spelled the same way, and still reports a tag
that really does disagree; there is a test for each half.

Found by cutting the first release, which is the only place it could have
been found.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-07 15:33:32 +02:00
Homer 3d51ba061e Tests that found things reading did not
The testing pass: 2140 tests to 2283, and four bugs that no amount of
reading had turned up. Three came from driving the JavaScript under a
Node DOM stub, which is the practice CLAUDE.md sets out and this is the
reason it does.

The terminal dropped every keystroke after a reconnect. `onclose` closed
over the module-level socket rather than its own, and close() queues its
event -- so the old socket's close arrived after a new one was assigned
and nulled the live one. Output kept coming, because onmessage is bound
to the object, while every send gates on the variable. It also announced
"Disconnected" about a shell that had just reconnected.

Two scripts were loaded twice on /messages, once by base.html and again
by the page. Each is an IIFE with its own state, so four keyboard
shortcuts toggled their panel twice and therefore did nothing, /help
opened two dialogs, and an @ mention attached its file twice. A sweep
refuses any template re-loading what base.html has.

The microphone had no guard while the permission prompt was up, so each
click opened another stream and only the last was ever stopped. And a
skill shared with you took its name out of your own library: create
checked uniqueness against what is *visible* rather than what is owned,
against a (owner_id, name) constraint, and told you to edit a row you
cannot edit.

--ink-faint failed the contrast minimum in both themes -- 3.85 and 3.19
against 4.5 -- so the smallest text on every screen was the hardest to
read. Measured in a headless browser rather than judged by eye.

And the suite runs on 3.11 and 3.12 now as well as 3.14. It had only ever
run on 3.14 while the image ships 3.12 and the packaging claimed 3.11:
the interpreter most people would run was the one nothing had tested.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-07 14:41:45 +02:00
Homer 32003bf8dd An installer that moved a channel nobody asked it to
The channel lives in two places -- lembas.env, which the page reads, and
the systemd unit, which the button obeys -- and a re-run keeps the env
file while rewriting the unit. Defaulting to stable therefore meant a
re-run for some unrelated reason silently moved one half and not the
other, leaving a host whose page named edge and whose button deployed
stable.

That mismatch already had an alert. An installer that causes the thing it
detects is the wrong end to be detecting it from, so it defaults to what
the host already follows. Parsed rather than sourced: that file holds the
secret key.

Found by running it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-07 14:09:15 +02:00
Homer 96f269dadb Boundaries that were supposed to hold
The security pass. Six findings, none reachable by visiting the site and
every one a boundary this codebase says it keeps.

A subagent is pinned to a list of read-only commands, in every mode,
unattended, with no card anybody could approve -- and `find *` was on it.
find writes files with -fprintf, runs programs with -exec and removes them
with -delete, and none of that needs a character the metacharacter guard
refuses. A page the model had just read could ask for a helper and get a
key into authorized_keys, from Plan mode, which promises to change
nothing. Refused in `subject()` rather than trimmed from the list: a
pattern cannot say "and no dangerous flags", and "this one looks
read-only" is exactly what put find there.

The loopback guard missed `0.0.0.0`, which is not is_loopback but does
connect to localhost -- so it answered a *decided* False and skipped the
DNS half too. The one spelling of "this machine" that walked past a guard
whose whole job is that sentence.

Twice in the update helper, which is the one place this deliberately
crosses a privilege boundary: root ran a script the service account owns,
and root sourced a file that account can replace. Either turns a
compromise of the web application into root. The first needed no
compromise at all -- a pull happens as the service user and root runs
whatever it fetched, so control of the branch was control of root. The
old test asserted that exact ExecStart line and had pinned it in place.

Push endpoints skipped check_url, the only outbound request that did. And
a chat could be filed in another account's folder, which hands over its
system prompt -- `_new_chat` resolved the folder, discarded it when it was
not the caller's, and stored the raw id anyway.

An existing helper install keeps the old wiring until install.sh is
re-run; update.sh now says so when it finds itself inside the checkout.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-07 13:45:59 +02:00
Homer 0ce8026bd2 A helper that would have deployed a channel nobody named
The channel is declared twice: in lembas.env, which this process reads and the
page prints, and baked into the systemd unit, which is what the helper actually
deploys. install.sh writes both together so they agree by construction -- and
the moment somebody edits one by hand they diverge, with the page naming one
channel down every card and the button deploying the other. Nothing anywhere
would have said so.

It cannot be collapsed to one place. Reading it from lembas.env at deploy time
would mean the service account decides what gets deployed, since it owns that
file -- and "the request carries no channel" is the property the whole design
rests on. So the two stay, and the marker file the page already reads to know
the helper exists now carries the channel it was installed with. A disagreement
is an alert.

Display only, deliberately: the service account can write that marker, so a
compromised process could lie about what the helper will do -- but not change
it, because the helper's own channel lives in /etc where that account cannot
reach. Lying about the channel is a much smaller thing than choosing it.

An empty marker -- every host installed before this -- reads as unknown rather
than as a mismatch. Claiming one would put a red alert on every existing host.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-06 21:44:35 +02:00
Homer 8219bd9635 Release notes that are not forty lines of base64
Found by documenting it. `_notes_for` stripped `-----BEGIN PGP SIGNATURE-----`
from an annotated tag's contents and nothing else, and which header appears
depends on `gpg.format`: `openpgp` writes that one, `ssh` writes
`-----BEGIN SSH SIGNATURE-----`. This repository signs with an SSH key, so the
first signed release tag would have rendered its whole signature block as the
release notes on the update page.

`%(contents:subject)` and `%(contents:body)` would have avoided the question,
and would also have thrown away every blank line in a body written as a list --
which is what release notes are.

The suite caught the other half of the same change: `tag.gpgSign` makes a bare
`git tag <name>` behave as `-s`, so the lightweight tags a test was making now
wait for an editor it does not have.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-06 21:29:42 +02:00
Jaroslav Beneš 5612bf2acd A version somebody can read, instead of a sha nobody can
Updates follow a channel now. `stable` is the newest vX.Y.Z tag; `edge` is the
branch tip, which is what this did before. Stable is the default, because a
branch tip is not a release -- following one means deploying whatever was pushed
five minutes ago, possibly mid-feature, which is right for whoever builds this
and wrong for whoever runs it. The page can now say "running 1.0.0, 1.1.0
available" rather than showing two shas and leaving somebody to guess.

Read with git plumbing and never a forge API, for three reasons in the order
they bite. It would need a token on the deployment host -- a credential that can
reach the repository, sitting on a box, to answer a read-only question about
version numbers. It would tie this to one forge, so a fork on GitHub gets
nothing. And it breaks: checked against the Gitea this is developed on, `tea
whoami` works and `tea releases list` returns a 500 from a server-side panic
about token scopes, so a page resting on that endpoint would have shipped
already broken.

Release notes still travel, inside the annotated tag object, which
`git for-each-ref` reads with no API anywhere.

Two details that are only obvious after getting them wrong. A tag with a suffix
is not a release: git's version sort puts v1.1.0-rc1 *above* v1.1.0, so
accepting one would step a stable host onto a candidate on the strength of a
hyphen. And `--sort=-v:refname` rather than a lexical sort, which puts v1.9.0
above v1.10.0 and does it silently the first time a project reaches ten of
anything -- there is a test.

What is running is `git describe --tags --always`, so it reads "1.0.0" at a tag,
"1.0.0-7-gd4f56d" seven commits past one, and a bare sha before the first
release ever exists. That last case is what `--always` is for. When it lands
exactly on a tag whose name disagrees with __version__, the page says so: a tag
cut before the version bump names a release nobody can identify afterwards, and
the check costs no subprocess because both facts are already in hand.

update.sh resolves the channel the same way and detaches at the tag rather than
resetting -- a `reset --hard <tag>` while on main would move the local branch to
it, which is a rewrite of a ref nobody asked to rewrite. A host with no tags
falls back to the branch and says so, which is every host until the release.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-06 20:42:03 +02:00
Jaroslav Beneš ddad585e4b An update you can ask for, and a boundary that stays where it was
The button cannot do the work, and that is the whole design. The service runs as
an unprivileged account, cannot restart itself, and should not be able to: a web
application that can restart its own service is one whose worst day is much
worse. So /admin/updates writes a file, and an opt-in systemd .path unit runs
deploy/update.sh as root.

Three properties hold it up, and each is a thing that could have been got wrong.
The request file carries nothing that reaches a command line -- no branch, no
ref, no arguments -- because the branch is baked into the unit at install time,
so pressing the button is always "deploy the branch this host was configured
with" and can never be "deploy something else". It is off unless somebody passes
INSTALL_UPDATE_HELPER=1, and re-running the installer without it removes both
units and the marker. And without the helper the page says so and prints the
manual command rather than writing a file nothing is watching, which would be a
button that reports success and does nothing.

The card that says all of this is rendered whether or not there is anything to
apply. It was inside the "there is an update" branch first, so an administrator
could not discover the helper was missing until the day they needed it, which is
the worst possible moment.

Opening the page makes no network request; Check is the one thing that fetches.
And it shows the log between, not a count: "3 behind" is a number somebody has to
go and look up, while the subjects are what decides whether this is worth
restarting for right now.

Docker is one stage, because there is nothing to build -- no Node, no compiled
assets. It bakes no secret key (one in an image is one every copy shares, and
rotating it makes stored API keys unreadable), no data, and no .git, so
/admin/updates inside a container correctly reports that it was not installed
from a checkout. Compose publishes on loopback and refuses to start without a
key. TLS in front is a constraint rather than a recommendation: the service
worker and the microphone both require HTTPS or localhost.

The image was built and run before this was committed, which is how the missing
COPY of LICENSE was found -- pyproject declares it and the build backend reads
it, so the failure reads like a packaging problem and is one line.

deploy/lxc-install.sh creates an unprivileged Debian container and runs the
existing installer inside it. A wrapper, not a second install path: a parallel
installer is two things to keep correct and one of them rots.

/healthz opens the database rather than only proving the socket is listening -- a
process that is up with a database it cannot open answers every page with a 500
-- and says nothing about what is here, being reachable without signing in.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-06 17:56:18 +02:00