Commit Graph
2 Commits
Author SHA1 Message Date
jaap-janandClaude Opus 5 8c04ba60b0 Build the three things the phone's + needs, before the + exists
Steps 1 to 3 of docs/adding-hosts-on-the-phone.md: the domain half. Nothing
on either head has changed, which is deliberate — the plan orders these first
because everything the editors will bind to has to exist and be merge-safe
before a screen can offer it.

HostGroupSecret gains a parent and four defaults, and the codec gains the
version rule it never had. It stamped CurrentSchemaVersion unconditionally,
which was harmless with one field and one version and stops being harmless
here: upgrading one machine and renaming any group would have made that group
uneditable on every machine still on the old build. It now emits the lowest
version that loses nothing, so a flat group with no defaults still encodes at
version 1, byte for byte, pinned against a literal.

Tags become a real item over the reserved slot. Secret, codec, merge, cipher,
repository, both registries, the EF entity and a generated AddTagItem
migration. TagCipher names AadResourceType.Tag as a constant rather than
casting the wire type, because Tag is 5 on the wire and 8 in the crypto enum
and 5 there is Credential — a cast would seal every tag under the resource
type for a password, encrypt and decrypt perfectly on the machine that wrote
it, and only fail when another implementation refused the item, by which time
the AAD is frozen into stored ciphertext. HostTag stays reserved and unused:
the one thing the join buys over a set on the host is bought instead by
merging TagIds per id.

HostSecret grows TagIds and Port goes nullable, which is the change with the
widest blast radius and the only one that loses an item rather than locking
one. A host with no port of its own omits the property, an older build reads
int Port as 0, and TryValidate refuses it — unreadable rather than read-only.
That cost is confined to hosts which actually inherit, because the version is
a maximum over the fields present; the alternative, writing 22 into every
host, is the lie inheritance exists to stop telling.

One decision the plan did not specify. "Three states where there were two" is
four — key, credential, typed password, or the group's answer — and two
nullable ids carry three. Naming neither id now means inherit, so
AsksForPassword says "a typed password even under a group that lends a key"
out loud. Only true is ever written and a decoded false folds back to null, so
a host that never touched it encodes as it always did. Nothing already stored
changed meaning: no group could lend a binding before this build, so every
existing host resolves exactly as it did.

HostInheritance is the resolver, and its visited set is load-bearing rather
than defensive. Two clients can each re-parent A under B and B under A while
offline; the merge sees one item against one item and the server sees
ciphertext, so nothing upstream can refuse the pair. With inheritance the
chain is walked at connect time, so an unguarded cycle is not an undrawable
sidebar — it is a shell that never opens. Stopping at the first repeat
degrades it to a group that reads as a root, and clearing the parent is the
repair.

A tag set turns out to be the one field on a host that can never ask the user
anything. TagSet.ToIdMap keys by the value, so no key can hold two values, so
the both-sides-moved-differently branch of the keyed merge is unreachable —
asserted over the whole eight-row matrix. The conflict loop is kept anyway,
because that proof is one edit from ceasing to hold and what it would cause is
a discarded tag nothing records.

Three guard tests failed by design and were fixed rather than relaxed: the
ordered pull filter, the AAD pinning table, and the server's refusal of a
plaintext parent — that last one survives with its reason rewritten, because
the refusal now means "the parent is not the server's to hold" rather than
"there is no such thing as a parent". The prose that said groups are flat is
rewritten in all four places it appeared, not deleted.

The five view-model sites that read Port directly now go through the resolver,
which is a down payment on step 4 rather than the whole of it. HostFields.From
still emits the stored port, and that is the one remaining place where an
unresolved read would be a wrong wire rather than a wrong label.

Verified by the whole suite: 1382 tests over nineteen projects, none failing.
Both heads build. Nothing seen on a display, because nothing on a display has
changed yet.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-03 10:21:02 +02:00
jaap-jan d07b336868 Free the terminal from the Hosts screen, and fill the room it left
The WebView sat inside the Hosts grid, so navigating to Files or the keychain
hid every open terminal and the strip that named them. A connection you had
opened was invisible from four of the five screens. The window now has two
surfaces rather than one: a nav rail that says which page you are on, and a
terminal strip that is always there and switches the whole content area to a
shell. Screen keeps meaning "which page" and never becomes a sixth kind of
page, which is why this is two properties instead of one enum with a terminal
member in it.

Every screen lives inside one wrapper panel that collapses when a terminal is
showing. That is not tidiness — the WebView hosts a Win32 child window that
composites above everything Avalonia draws, so a screen left visible over its
rectangle is a screen sliced in half, and this window has shipped that defect
once already. One decision point, IsTerminalShowing, and a nested panel rather
than five compound bindings nobody would remember to extend.

The focus choreography is the part no test in this repo can see. Every reveal
path now focuses in the same turn the WebView appeared, so all three of them
post at DispatcherPriority.Loaded and let the native control re-push its bounds
first. Going the other way had a real bug: the screen-changed branch called a
bare Focus() where it had to release the keyboard from the native child, so
switching from a terminal to Files silently ate the first keystrokes. Rare
before this commit and the primary gesture after it.

The tab strip grew a cross inside each tab, a plus that opens the quick-connect
palette, and middle-click close. Nested buttons are correct here: Avalonia
handles a left press on the cross and deliberately does not handle other
buttons, which is exactly what lets middle-click bubble up from the cross as
well as the tab. The test is PointerUpdateKind rather than
IsMiddleButtonPressed, because the latter reports button state and is also true
for a left press made while the middle button happens to be held. The handler
is on the tab and not the strip, so the background closes nothing by
construction. Plus opens the palette rather than a flyout, since a menu
dropping into the WebView's rectangle may or may not composite above a child
HWND and this repo does not make rendering claims it has not photographed.

Everything a user reads now says keychain. The wire, the database and the
cryptographic spec still say vault, deliberately: renaming those is a migration
and a protocol change for a word. That split is written down rather than left
to be rediscovered as an inconsistency.

Four things that were squeezed into the keychain's category rail, or into
nothing at all, now have screens. Pinned host keys get one, with fingerprints
never truncated and a filter that matches them, because comparing what you have
against what the operator published is the whole workflow; the approved date is
read out of the item's UUIDv7 rather than added as a column, and says so, since
it means first approval and not last use. Keys can be generated in the client,
which needed the openssh-key-v1 container written by hand — there is no BCL or
NSec helper, and the PKCS#8 route is unverified in the SSH library this uses.
The armour carries no passphrase: encrypting it needs bcrypt_pbkdf, which is
Blowfish with a swizzle, in a project whose crypto is otherwise entirely
libsodium, for a protection the key's own remarks argue is redundant inside a
vault. Generation fills the existing editor and stops, so SAVE stays the one
thing that writes. ~/.ssh/config can be imported behind a preview that is
ticked per row and writes nothing until the button; IdentityFile records the
path and imports the key material only on an explicit opt-in, because reading
somebody's private key into a vault is precisely the act this product exists to
make deliberate. Match blocks and ProxyJump are reported rather than obeyed —
one cannot be evaluated statically and the other has nothing behind it to route
with, and a preview that implied otherwise would be worse than one that admits
it.

Files can be dragged in all four directions that are honestly available. Remote
to Explorer does not ship and is not pretended to: the shell wants the bytes
during the drop, which needs a virtual file and a native COM data object,
outside what Avalonia offers. Note for the next person that Avalonia 12
replaced the drag model outright — DataObject and DataFormats are no-op stubs
and IDataObject is not in the reference assembly, so every tutorial written for
11 does not compile here.

Hosts can be grouped, flat and never nested. A parent id merged as a scalar
lets two offline clients each re-parent A under B and B under A, producing a
cycle inside an encrypted payload that no server can police and every reader
would have to detect for ever. Membership lives in that payload rather than in
the one plaintext concession ADR 0001 allows, whose test is that the relay
cannot function without it — nothing on the server reads a group, so what
plaintext would hand over is a clustering of the estate for nothing. The
plaintext column reserved for it is dropped, provably always null, and the
server now refuses a client that sends one; it was never populated, was copied
on apply, and was not cleared on delete, so a group id would have outlived the
host it described.

Snippets insert through xterm rather than through the pump, because xterm is
the only thing that knows whether the remote has bracketed paste on, and that
is what makes a shell treat embedded newlines as text instead of as execute.
The host process moves opaque bytes and never parses output, so it would have
to guess, and guessing wrong runs every line. Running is off by default and the
copy says the text goes into whatever is there — the terminal has no notion of
being at a prompt, and may be in vi or at a password prompt with echo off, so
the Enter the user presses themselves is the entire safety property.

Connections and keychain changes are recorded as synced encrypted items, which
is what makes them auditable by a team later and costs the server knowledge of
connection rate and timing from row counts alone. ADR 0001 already concedes it
cannot hide that class of metadata; the trade is now written into it rather
than left implicit. A connection entry is written once, at close, which is what
makes a synced log tractable: nothing to merge, one outbox row, no chance of
colliding with itself. Live sessions come from memory, not from the log. The
write is void by contract and posts to a bounded channel, because putting an
encrypt-and-write on the teardown path of every session is how closing the
application comes to take four seconds. A ticket opened before a lock still
closes afterwards, since a shell outlives the vault. The activity log hooks the
one generic repository every kind writes through, so it cannot miss a caller —
which is also why the log kinds themselves declare they are not audited, or the
first entry would write an entry about writing an entry. It records the names
of the fields that changed and never their values; a log with an old password
in it would be a plaintext credential store with no vault around it. Retention
is 90 days or 5,000 entries, whichever bites first, pruned on the sync loop
rather than on a second timer.

That log traffic then broke the status line, which is worth recording because
the fix is a shape and not a patch: background sync counted its own log rows as
pushed items, so the quiet rule stopped being quiet and every action's message
was overwritten a second later by a sync report. The report now separates log
rows from user items and the rule reads the latter.

S3 buckets appear as a remote in the file browser, behind the same interface an
SFTP session implements, so the queue and both panes did not have to learn what
they are talking to. Uploads go through a pipe, because the queue wants to
write and the SDK wants to read; memory is then bounded by the part size
instead of buffering a file to disk twice.

Finally, the Windows device key store moved out of the session project, which
was the one thing keeping it from being portable — everything else in it is
platform-neutral, and a Windows CNG dependency in the middle of the vault code
meant a second head could not reference it without dragging Windows along. The
seam that made the move free was already there. docs/android-port.md is the
audit behind that: what ports, what does not, in order of cost, the four
decisions taken, and an inventory of every screen and state the interface has
to carry, written so a design can be made from it directly.

dotnet build, dotnet test and dotnet format --verify-no-changes are all clean:
1240 tests at zero warnings, including the end-to-end suite against real
containers. The manual checks that headless Avalonia cannot make — the drag
from Explorer, a generated key against a real host, twelve tabs at the minimum
window width — are listed in docs/manual-checks.md and are still outstanding.
2026-07-31 20:30:05 +02:00