Public Access
dabc691c3530442fe474e06e99a8a15a8e8ab054
203
Commits
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dabc691c35 |
Keep the doorbell listening between callers, and stop a hung test taking CI with it
The test step ran for twenty minutes and had to be stopped by hand. Eighteen suites
had passed; DodoSSH.Client.App.Tests never reported.
◆ ON UNIX, A FRESH SERVER PER CONNECTION LOSES THE NEXT ONE.
The doorbell's accept loop built a NamedPipeServerStream inside the loop, served one
caller and disposed it. That is fine on Windows and quietly wrong on Linux, where a
named pipe is a Unix domain socket: disposing the server closes the *listening*
socket and unlinks its path, so a second launch that connected while the first was
being served has its connection dropped. Its Connect returned, its write succeeded
into a buffer, and nobody ever read it — the launch was told it had rung the
doorbell and the window never came forward.
Reproduced in a container rather than reasoned about, because the two platforms
disagree and this machine is only one of them. Three rings back to back:
one instance, Disconnect between callers -> 3 of 3 answered
a fresh instance per connection -> 1 of 3 answered
So there is one server for the life of the doorbell now, Disconnect()ed between
conversations, and the socket is never not listening. Which makes leaveOpen on the
reader load-bearing too: a StreamReader disposes the stream it was given, and that
stream now has to survive into the next iteration.
Two things I had wrong about this, both worth recording. Cancelling
WaitForConnectionAsync *does* unblock a pending accept on Linux — that was my first
theory and the container disproved it, so DisposeAsync awaiting the loop was never
the problem. And the app itself never hung: the lost ring is a launch that is
ignored, not a process that stops.
◆ AND THE REASON IT COST TWENTY MINUTES RATHER THAN TWENTY SECONDS.
await twice.Task.WaitAsync(TestContext.Current.CancellationToken);
That token carries no timeout. A ring that never arrives is then not a failing test,
it is a job that sits there — which is exactly what happened, and it is the more
expensive of the two mistakes because it turns any future bug of this shape into a
runner somebody has to go and stop. Both awaits are bounded now.
TheDoorbellAnswersMoreThanOnce keeps its shape deliberately: two rings back to back
rather than one and a pause, because the gap between accepts is the whole defect. A
test that waited for the first to be answered would pass against the broken version.
ci.yml had no timeout-minutes anywhere, on any job. Every job has a ceiling now, and
the test step has a tighter one of its own — ten minutes against a suite that takes
two — because a hang there is the likeliest of the lot and a step-level timeout names
the step instead of leaving a reader to work out which of fifteen was still running.
None of them is a performance budget; a build that legitimately grows past one should
have the number raised.
Verified both ways on Linux, in a container, against the committed tree and this one:
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b8c94ecb73 |
Put a window on screen while it starts, and refuse the second one
Two things a desktop application is expected to do and this one did not. ◆ THREE SECONDS OF NOTHING. Measured on a debug build against a cold profile: the main window arrives 3.1 seconds after the executable does. Nothing was on screen for any of it — the icon had been double-clicked and the desktop looked unchanged. The main window cannot come sooner. It needs a view model, and the view model needs composition to have opened the SQLite cache, bound the terminal's loopback socket, asked the platform about a TPM and read the install layout off disk. Its own IsStarting card already narrates what happens after it appears; this is the part before, which no arrangement of that window can cover. So SplashWindow, and it is measurably the point: 668 ms to the splash, 3.1 s to the window that replaces it. Two mechanics are load-bearing rather than incidental. The splash *is* desktop.MainWindow for a moment. The lifetime shows whatever that property holds once OnFrameworkInitializationCompleted returns; a window merely Show()n there would have no lifetime attached, and under ShutdownMode.OnLastWindowClose the first close of anything would end the process. Handing the property over is one assignment and Avalonia reads it lazily. And composition is posted at DispatcherPriority.Background rather than called. It is synchronous and slow — which is the entire argument for a splash — so running it inline would block the very dispatcher turn that has to paint the thing. The window is SizeToContent="Height", which is about the failure and not the splash: CouldNotStart carries an exception's own message, and inside a fixed height a long one would wrap and be clipped at exactly the moment that text is all the window is for. A composition that throws is caught rather than left to the dispatcher, for the same reason — before this there was nothing on screen to abandon, and now there is, so an escaping exception would leave a window saying "Starting…" over a process that had stopped. Escape closes it, and only then. ◆ AND ONE INSTANCE. Claimed in Main before Avalonia is configured, so a second launch starts nothing at all: no toolkit, no window, no splash flashing up before it thinks better of it. Exclusion is an exclusive handle on instance.lock inside the profile directory, and that location settles two questions at once. A nightly and a release build do not exclude each other — separate profiles, ADR 0013 — and two people signed in to one machine each get their own instance. A global mutex would have had to re-derive both from somewhere. A file handle rather than a named mutex because the kernel releases it however the process ends. There is no such thing as a stale lock here, which is a state a named mutex makes both platforms model differently and neither model simply. The second launch is not silent. Somebody who double-clicks an icon and sees nothing has been told the application is broken, so it rings a named pipe — named from a digest of the profile path, so it is scoped exactly as the lock is — and the running instance un-minimises and activates. Activate is a request and not a guarantee: Windows refuses the foreground to a process that did not receive the input, and the flashing taskbar button that results is still an answer. Three seconds of retrying when the lock is held by something that does not answer its pipe, and that window has one job. Velopack's apply ends this process and its updater starts the new build; the two are ordered, but a lock held a moment too long would make the successor refuse itself and vanish — an update that looked like an uninstall. The doorbell is disposed before Shutdown for the same reason, so the pipe name is free before the process is. ◆ VERIFIED BY RUNNING IT, WHICH IS THE ONLY WAY EITHER OF THESE COULD BE. Two launches of the built executable: the first stayed up with instance.lock in the profile, the second exited. Window sizes over time are where the two timings above come from — 420x160 then 1196x776. SingleInstanceTests covers what a single process can reach: the lock, its release by disposal, the doorbell answering more than once, and two profiles not excluding each other. SplashCardTests measures the one thing the splash can get wrong, which is a failure message long enough to need the height the window is willing to give it. Checks 1.12 and 16.11 are what needs a second executable and a real screen. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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c859705b83 |
Give the hosts board its vaults, and the Hetzner import a vault and a key
Six things, all of them answers to a question a screen was deciding on somebody's behalf. The board draws a heading per vault and sorts each vault's hosts by that vault's own groups. A group is an item of one vault, so drawing every group of every vault in one run flattened away containment that already exists: two vaults each holding a "production" were two headings with the same word on them, told apart by a small grey name beside each. Single- vault sessions are unchanged. There is now one "No group" heading per vault, so the folded set is keyed on SidebarGroupHeader.CollapseKey rather than on GroupId ?? Guid.Empty, which had one vault's unfiled hosts folding every other vault's away with them. A Ctrl-click starts its set with the card the board has lit. The board always has a selection — a fresh unlock lights the first host so CONNECT has something under it — so "one card lit, nothing ticked" is the state this screen opens in, and ticking a second card there produced a set of one: the machine the user was looking at was left out of the count and out of everything Delete, Move and Change group then ran over. The card tooltip says the host's name as well as its address. 214 pixels of card trims the name, and the tooltip was the one place it was not said in full. The card's floor drops from 120 to 104. A card with no tags measures about 87, so the mock's number was thirty pixels of air under every card on a board that is scrolled. "Move to another vault…" joins the board's context menu for one host. Moving one machine meant opening its pane and finding the menu inside it, while moving six was a right click away — the one-host case was the harder of the two. And the Hetzner import asks which vault and which key. A project belongs to a team more often than to a person, so forty servers landing wherever the session happens to be standing is the wrong default; ImportHostsAsync takes the target vault, and the ssh_config importer passes null and is unchanged. The key is the half Hetzner cannot supply and the keychain usually already holds — the public half went to Hetzner when the servers were made — so the import points every host at it rather than bringing one. It defaults to no key rather than guessing, and says so when the key it was given lives in a different vault from the hosts. |
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ed936380b3 |
Give the user menu one door into settings instead of three
Settings, Vaults and Preferences all opened the same full-window settings mode and differed only in which of its seven pages they landed on. SettingsNav, which lists every one of those pages including Vaults and Preferences, is on screen the whole time you are in there — so two of the three rows were deep links into a place the third one opens. They saved one click and cost a menu that read as though it offered three destinations. It was three rows for a reason that had stopped applying. Until v5c, "Settings" and "Preferences" were two doors onto the same bare Preferences screen, and splitting them was the fix for something real; Vaults arrived beside them when VaultsScreen became a settings page too. Folding those two back in is not a return to that state. They are pages now, with a rail of their own, and what a menu at the foot of the nav rail is for is getting into settings at all. Nothing became unreachable — both are one click deeper, from the rail that was always going to be the way to them. ◆ WHAT STAYS, AND WHY IT IS NOT THE SAME ARGUMENT. Logout stays and still lands on the Account page rather than on General, because its confirmation card is drawn inline on that one page while the vault is unlocked; arming it from anywhere else would raise a card nobody could see. The vault switches and New vault above the divider stay too — neither is a page of the settings mode, and the switches have no other home. ◆ THE ROWS ARE REMOVED FROM THE MARKUP, NOT UNWIRED. NavRailTests asserts their absence rather than only asserting that Settings still works, because the failure that guards against is silent: a row left in the markup with its handler deleted is a menu entry that does nothing when pressed, which reads as a broken application rather than a tidied menu. The helper it asserts through excludes the vault switches by their data context and not by their label — a vault is free to be called "Vaults", and a test that a menu entry is absent must not be defeatable by what somebody named a vault. Two facts go, one comes back plus the absence check; the layout suite is 166. Manual check 1.8 walked a reader through all three rows in turn and now walks them through the one, then through SettingsNav's seven — which is where the two went. design-import-gaps.md gains a v5c-5 section rather than an edit to the v5c table: what that table records is what shipped in that pass, and it did. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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c270f3fe39 |
Import a Hetzner Cloud project's servers, and forget the token that read it
An estate on Hetzner is already described somewhere: the project lists every server, its addresses, its plan and where it runs. Getting that into a keychain meant copying forty addresses out of a browser by hand, which is the same work the ssh_config importer exists to remove for the machines described in a file. ◆ A WIZARD RATHER THAN A SCREEN, AND THE DIFFERENCE IS WHAT EACH STEP COSTS. ImportScreen reads a file that is already on this machine, so it scans on open and shows a list. This cannot: it needs a credential that has to be made in another company's console first, and then it makes a request over the internet. Those are two moments rather than one, and a screen that mixed the token box in with the list would ask for the credential again every time somebody came back to look at the list. So three steps — token, choose, done — and the first two write nothing. Step two carries one address choice, one login user and one port for the whole import, because an estate is reached the same way throughout and a per-server dropdown would be forty answers to one question. ◆ THE TOKEN IS USED ONCE AND CLEARED, INCLUDING WHEN IT WORKED. The half worth stating is the success path. Clearing only on failure would leave a credential capable of listing somebody's whole estate sitting in a text box for as long as they spend reading forty rows, which is the longest anybody stands on this screen. Nothing writes it to the vault, to settings or to a log, and reopening the wizard restarts at step one rather than resuming — a resumed step two would be a list nothing on screen has the means to refresh, going on looking current for as long as the application stays open. Read is the only permission it needs and the note above the box says so: a Read & Write token would work identically here and would be a credential capable of deleting the estate, pasted in for no gain. The note also says a token belongs to one project — there is no API call that will say which, and none that lists the others — so an account with four projects runs this four times. Without that sentence the wizard looks like it lost most of the estate. ◆ THE ADDRESS IS A CHOICE, AND TWO OF THE THREE FALL BACK WHERE THE THIRD MUST NOT. Public IPv4 and public IPv6 fall back to each other: the same machine over the same internet, so the worst case is a route nobody picked, and the row says which. Private does not fall back at all. A server on no private network is simply not importable under that choice — its tickbox is disabled, and neither direction of the header's tick-all can reach it — because falling back would put an address on the open internet into a bookmark that was asked to stay off it. IPv6 needs saying twice over. Hetzner routes a whole /64 and the API reports the network, which nothing can dial; the address a stock image answers on is the first one in it. That is a convention of Hetzner's own images rather than a fact the API stated, so every use of it carries a warning on the row and in the stored note, and it is computed by setting the low byte rather than by string surgery on the prefix. It is not an edge case either — IPv4 is billed separately now and a project built since then can be entirely IPv6-only. ◆ NOTHING IMPORTED HERE AUTHENTICATES, AND THAT IS SAID BEFORE THE BUTTON. Hetzner has never held the private half of an SSH key. The API will name a project's keys and hand over their public halves; there is no private half to bring. So every host arrives bound to nothing and asks for a password until somebody points it at a key already in the keychain — the same shape an ssh_config import has with its key tick off, and stated above the button on the same reasoning: somebody who is not told will conclude the import was broken. What the note keeps is what does not go stale — the id, the plan, the location, the image, the labels. The power state is a column and never a note: "running" about a machine somebody switched off last March is worse than no note. ◆ WHERE IT LIVES: TWO FLAGS OVER ONE CONTENT COLUMN. Drawn over the Preferences page inside settings mode exactly as ImportScreen is, with SettingsNav unmoved and the titlebar offering "Back to preferences". IsHetznerImportOpen is a second flag rather than a "which importer" enum, because they are two independent facts about the content column and a single value would need a "neither" member IsImportOpen already expresses; what keeps them from both being true is that every path that opens one closes the other. The titlebar and the Preferences page ask IsImporterOpen, which is written against both. Preferences grows a second importer row beside the first rather than one row that asks "from where?", which would put a question in front of the far more common answer. ◆ WHAT IS NOT HERE. Hetzner's Robot — dedicated servers and Storage Boxes — is a different API behind a different credential, and nothing in this touches it. Said on the Preferences row and on the token step rather than left to be discovered by an account that has both. And there is no phone layout. This one would work on Android, unlike the ssh_config importer beside it: it is a token and a network request, the view model is shared already, and scoped storage has nothing to do with it. What is missing is a screen — the desktop draws a five-column table, and the phone version of that is a different layout rather than the same one narrower. Recorded in android-port.md and on the phone's own Preferences screen, because the note there previously read as though no import of any kind could work. ◆ TESTS, AND WHAT IS LEFT FOR A PERSON. HetznerCloudClientTests is 16 cases over the shapes the API actually returns, against a stubbed HttpMessageHandler: paging followed, the token in a header and never a query string, a refused token distinguished from a fault at Hetzner's end, a token with a line break refused before anything is sent, the /64, the private-network asymmetry, and a server the API described without a name. ShellFlowTests.Hetzner.cs is 11 more against this fixture's real vault, real cache and real server — split into a file of its own, as FakeVaultServer keeps its team endpoints. What they establish beyond the reader's own suite is the half it cannot reach: that reading stores nothing, that importing goes through the ordinary create-and-push path and lands on the server with nothing pressing Sync, that a server the keychain already has arrives unticked, and that the token does not outlive the request. Two layout cases measure both steps against the same content budget every other settings page gets, which is also what proves the markup binds to names that exist. Manual checks 2.11a–2.11d are what no test in this repository can do, because there is no account, no token and no network in the ordinary suite: a real project listed against the real console, a wrong token, the private choice, and what an imported host does when you connect to it. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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56c19b006d |
Stop the updater offering the build it saw first, whatever has been published since
A client two versions behind was offered the older of the two, installed it,
restarted, and was told at once that another update was waiting. Two downloads,
two installs and two restarts to move one step.
The feed was not the problem and could not have been. The nightly release is
deleted and remade on every push to main, so it holds exactly one build: a client
can only ever be offered the newest thing there is. The wrong version came from
this application's own state.
◆ THE PASS STOPPED ASKING, WHICH IS NOT WHAT IT WAS MEANT TO STOP DOING.
if (!IsAutomatic || State is UpdateState.Downloading or UpdateState.Ready)
Ready means something is downloaded and waiting. The intent behind excluding it is
right — there is no point fetching what has already been fetched — and what it
actually did was skip the check. So from the first thing any process downloaded,
its banner was pinned to that build for the rest of its life, however many newer
ones were published afterwards. On a rolling channel that is the normal case
rather than a corner.
Not re-fetching is still the rule and now lives in FetchAsync, which compares
versions rather than refusing to look: the same build is left alone, a newer one
replaces what was pending. Which is also why FetchAsync answers with what is
*pending* rather than with what the check returned — a client on 1.0 holding 1.1
is told 1.1 by every later check, because 1.1 is still the newest thing on the
feed, so "the check found something" and "there is something new" are different
questions and only the second one is worth a download.
A build already fetched is never discarded, including when a check answers null.
Null means the feed's newest is no newer than the build that is *running*, which
says nothing about the one on disk — that one is still newer, and withdrawing an
offer somebody has already been shown would be the worse answer.
◆ AND A LAST LOOK BEFORE THE PROCESS IS REPLACED, WHICH IS THE HALF THE TIMER
CANNOT REACH.
The loop asks every six hours. The build that caused this was published minutes
before RESTART NOW was pressed, so no interval anybody would accept would have
caught it. The press now asks once more.
It costs one small request in the ordinary case, because the feed answers with the
build already on disk and nothing is fetched. It costs a download only when there
genuinely is something newer, which is the case where the alternative was two
downloads anyway.
Bounded at ten seconds, and the wait rather than the request: VelopackUpdateChannel
records that Velopack's check takes no token, so cancelling would be observed only
after the call had already returned. Ten seconds bounds a small JSON document
against a network that drops packets rather than refusing them; a refused
connection fails in milliseconds and never reaches it.
Nothing here refuses a restart. An unreachable forge, a look that ran out of time,
a fetch of the newer build that failed halfway — all leave the build on disk
untouched and still newer than the one running, so the restart goes ahead with it.
Hence swallowed rather than reported: Failed is for something a person is waiting
on an answer to, and this person is waiting on a restart they are about to get.
IsRestarting keeps the banner up through it. Everything the strip draws keys off
IsReady and the look moves the state off that, so without it pressing RESTART NOW
made the banner vanish with nothing on screen saying why, for as long as a 120 MB
package takes. It says what it is doing instead, percentage and all.
◆ THE CHANNEL HAD TO LEARN WHICH BUILD IT FETCHED, AS AGAINST WHICH IT LAST FOUND.
Required by both halves above rather than tidied along with them. Matched()
resolved an AvailableUpdate only against `found`, which a check overwrites — and
both changes make this application check while a build is already downloaded. A
check that lands a newer answer and then fails to fetch it, or is given up on
halfway, leaves the shell restarting with the build it already has and Matched()
throwing at it: the offer real, the package on disk real, and the only thing wrong
being that the channel had forgotten which one it was. A slow forge became a
refused restart.
So `fetched` is recorded after a download returns, tried before `found`, and
survives every later check.
Settings → General claimed checks start "a couple of minutes after launch", which
has been untrue since the first pass moved to launch. It now also says the loop
keeps asking while an update is waiting, because that is the behaviour somebody
reading that row would want to know about.
UpdateFlowTests goes from 21 to 28: the pass asks again and fetches once, the
pending build is replaced when the feed moves on, a superseded offer reappears
through a dismissal, the press installs what the last look finds, and the three
ways the last look can fail all still install what was already on disk. Check
16.7a is the manual half, needing two real releases.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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1908189100 |
Make the terminal's right button copy and paste, and never open a menu
Selecting output and right-clicking it opened the WebView's own context menu with Copy on it, which is correct behaviour for a web page and wrong for a terminal. What a terminal's right button has meant since the Windows console got QuickEdit, and since PuTTY shipped, is this: with something selected it copies and drops the selection, with nothing selected it pastes. No menu, no second click. The gesture can only live in the page. The selection is drawn into a canvas the host never sees, and once a terminal has focus the host's window receives no input events at all — the same reason the Ctrl+plus chords are handled there. ◆ THE CLIPBOARD IS THE HOST'S IN BOTH DIRECTIONS, AND THE READING IS WHY. navigator.clipboard.readText() is gated behind the clipboard-read permission in every Chromium, and an embedded WebView with no PermissionRequested handler answers a permission request by putting a prompt on the screen. Trading a context menu for a permission dialog is not this change. So the page asks and the host answers, exactly as requestFontSizeStep does. Writing does not go the other way either, although navigator.clipboard.writeText would have worked from the page on Windows: a clipboard that is the host's in one direction and the page's in the other is two mechanisms to keep working across WebView2, WebKitGTK and Android's WebView. The host has owned a clipboard delegate since the keychain grew its COPY buttons, so each App.axaml.cs grows a ClipboardReader beside its ClipboardWriter and MainWindowViewModel takes it. Three opcodes: client ClipboardCopy and ClipboardPaste, server Clipboard. ◆ Clipboard IS NOT Paste, AND THE DIFFERENCE IS THE BRACKETING. Paste carries a snippet off the sidebar, and the page deliberately *types* a single-line one rather than bracketing it, because bash marks a bracketed paste as an active region and a snippet should read as though it had been typed. A clipboard paste is the case those markers are for — readline uses them to decide it has been pasted into — so Clipboard is always bracketed and never followed by an Enter. One opcode for both would have needed a flag meaning "which of the two kinds of paste is this", on a payload whose existing flag byte means something else. Both client frames are dispatched before the session lookup, which is what keeps the gesture working in a pane whose shell has just ended: squinting at the message a remote left behind is exactly when somebody copies the line. Dispatch was past MA0051's length once it grew a second such branch, so the frames no pump needs to see moved into Announce() and the font-size chord went with them. ◆ CAPTURED AND STOPPED, RATHER THAN MERELY PREVENTED. preventDefault alone suppresses the menu and still lets xterm's own contextmenu handler run, which moves its helper textarea under the pointer at z-index 1000 and leaves the selection sitting in it, selected. Both of those exist to serve the native menu. Taking the event in the capture phase on the pane and stopping it there is what keeps the gesture wholly the page's. rightClickSelectsWord is now false, which on macOS is a change of default rather than a restatement of it: xterm sets it true there alone, so a right-click would have selected the word under the pointer and copied that instead of pasting — wrong on one platform only, which is the worst way for it to be wrong. The renderer harness grows the pane it has been inviting since RendererReconnectionTests: a fake Terminal, the two addons, and a real UTF-8 codec, because both directions run through the page's own TextEncoder and TextDecoder and a Latin-1 stub would pass a test with an em dash in the selection. Its warning about declaring names terminal.js declares now covers the half that does not SyntaxError — a harness frame() was silently replaced by the page's frame() and failed six tests on a type error a long way from the cause. Manual checks 1.11 and 11.13 are what is left for a person: that a real contextmenu event reaches a capture listener, that no native menu is drawn once it is prevented, and that xterm's real paste() brackets. 11.13 also records what is unverified — whether Android's WebView delivers a pointer's secondary click as a contextmenu event at all. ClipboardReader is wired on that head regardless, because the alternative is a head where the paste half silently does nothing and nobody finds out; that head is not compiled here either, this machine having no android workload. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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06369274dc |
Let the session address be selected, and copied whole
The address at the head of the session column is the one place the desktop head prints the endpoint it actually dialled, and it was a TextBlock — which in Avalonia is a drawing of a string rather than a string. The next thing people do with an endpoint is paste it somewhere: into a second client, into a ticket, into the ssh command being written in the window beside this one. Retyping is how a digit goes missing from an address that is mostly digits. SelectableTextBlock, which is what the rest of this application already reaches for wherever a string is on screen to be taken away — a fingerprint, a public key, a recovery code, a snippet's command. Nothing else about the row moves: same font, weight, colour and trimming, same tooltip, same close button beside it. The sidebar is one control drawn on both surfaces, so SFTP gets it for the same reason it gets everything else in that block. The trimming and the selection do disagree at the long end, and the fix for that is not to drop the trimming: the ellipsis is there because a long account@host:port would otherwise push the close button off the edge of a panel whose whole point is that it can be got rid of. A drag reaches only the glyphs that were drawn, so a trimmed address has to be taken with select-all — and select-all takes the whole thing, because the ellipsis is a drawing and not a shorter value. That is the half a test can quietly lose, so it is the half the new test asserts, on the longest address the suite has rather than on one that fits and would pass either way. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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cfc2e3ae0c |
Notice when a file session stops, and give the file browser the four things it was short of
The commit before this one taught a terminal to notice its machine going away.
The file browser had the same defect and three of the same symptoms, and it is
also the screen people leave soonest — so the disconnect work and four things it
was missing arrive together, because they are the same complaint: this screen
knows less about the host than the host does.
◆ THE DISCONNECT HALF, WHICH IS THE OTHER SURFACE OF THE LAST COMMIT.
IsConnected was set at connect and cleared only by the DISCONNECT button. A host
that went away therefore left this screen saying CONNECTED over a session that
was gone, and every action after it failing with the same server message and
nothing saying why they all did.
IRemoteFileStore now carries a latched TransportFailure and a ConnectionLost
event. The latch is the shell's own — read ISshShellSession.TransportFailure for
the argument, which is unchanged. The event is not, and it is the part this
surface needs: a file browser is idle between operations, so without something
raised at the moment the transport fails, nobody finds out until they click. A
bucket implements both and raises neither, which is honest rather than a gap:
S3 is request-per-operation with no connection to lose.
- THE LISTING STAYS ON SCREEN, and that is the half that makes the rest worth
having. SftpEntry is a record of what the server said rather than a handle,
so the pane can go on showing where the user was — which is what RECONNECT
is offering to put them back into. That needed a new ShowsRemoteContents on
both heads: every "is there anything here" binding read IsConnected, which
was right while the only way to stop being connected was to press a button
that empties the pane, and wrong the moment a session could be lost.
- RECONNECT re-dials through the ordinary connect path — same host key gate,
same refusals, same log entry — and then walks back to the directory the
pane was showing. The path is read off RemotePath rather than captured,
because the pane already keeps it up to date and a copy is a second thing to
get wrong. A host wanting a typed password is asked for one rather than
dialled with an empty box.
- SessionEndedBar is now one control on both surfaces, with the shell
resolving which it is drawn over: a terminal has two endings to tell apart
and a keychain entry to check, a file session has one ending and already
captured what it would dial. The phone's Files screen has its own copy,
bound to TransfersViewModel directly, because its DataContext is that rather
than the shell.
◆ PERMISSIONS: THE PERMS COLUMN STOPS BEING READ-ONLY.
It has been a true fact about a file with nothing to be done about it since it
arrived, and the commonest next act after using this screen was opening a
terminal — a whole second authenticated connection — to chmod what had just been
uploaded.
Nine checkboxes rather than a box to type 755 into, because the mode is already
drawn as -rwxr-xr-x in the column the form was opened from: a who-can-do-what
grid is the same representation the reader is holding, where an octal field asks
them to translate something they can see into something they cannot check. The
octal is printed underneath as it changes, so the two readings check each other.
The EXEC column is headed "enter" over a directory, which is what that bit means
there and the commonest misreading of a POSIX mode. The listing is re-read after
APPLY, because a umask, an ACL or a filesystem mounted without permissions can
all land somewhere other than what was asked for.
Beside it, mode and mtime carried across a transfer — which is what makes an
uploaded deploy.sh arrive executable instead of with the server's umask on it.
THE MODE IS ONLY SENT FROM A PLATFORM THAT HAS ONE. A file on Windows has no
POSIX mode; this screen already says so by leaving the local pane's PERMS column
empty rather than filling it with a plausible -rw-r--r--, and inventing 0644, or
0755 for anything called .sh, would be this client deciding a fact about
somebody's file that nothing on the machine it came from ever said. The
timestamp goes either way, because every platform has one. A store with neither
refuses in its own words and is never asked.
◆ MULTI-SELECT: A TICK IS NOT THE LIST'S SELECTION.
The two answer different questions and the split is the whole design. The
selection is "the row I am looking at", which rename, move and permissions act
on — each takes a form naming one path and is one-at-a-time by construction. The
tick is "the rows I have gathered up", which download, upload and delete take,
and it survives the highlight moving.
With nothing ticked the batch falls back to the selection, which is what keeps
the commonest use of this screen from growing a step — the usual way a
multi-select makes a tool worse. Ticks are released once a set is queued, or a
second press sends everything again.
Deleting several names every path rather than a count, because agreeing to "3
items" is agreeing to a number, and this is the one act on this screen that
nothing walks back. Each goes on its own and a refusal does not stop the rest:
the host turns down a directory that still has something in it, and in a set of
five that must not silently cancel the four it would have removed — nor hide
which ones it did not.
A drawn checkbox rather than ctrl-click, and not for taste: the phone shares
this view model and has neither ctrl nor shift, so a multi-selection has to be a
tap target there whatever the desktop does. One shape on both heads, and a state
somebody can see.
◆ RECURSIVE FOLDERS: THE TREE BECOMES FILES BEFORE THE QUEUE SEES IT.
A directory used to be counted and skipped. It is now walked, and the queue
still knows nothing about trees — which is what keeps every property it has:
each file resumable on its own, each written to a part file and renamed into
place, none able to overwrite anything already there.
The plan is collected whole and then queued, because directories have to exist
before the files that go in them and shortest-first is the only order that
guarantees a parent before its child. It also means a walk refused halfway has
queued nothing yet, so the sentence it produces describes one outcome rather
than an outcome and a queue that half happened.
Links are counted, not followed, in both directions. One pointing at an ancestor
is a walk with no end, and on the remote side there is a second reason: an lstat
listing says a name is a link and not what it leads to, so descending would be a
round trip per entry to find out. Locally that is AttributesToSkip on the one
enumeration that decides what to descend into. A 5000-file ceiling is a backstop
for the accidental drag of a home directory, and it says so rather than
truncating quietly.
The status line grew four more ways to be partly what was asked for, and states
each: gone, refused, left alone, not a file.
◆ EDITING IN PLACE: FETCH, OPEN, WATCH, PUSH BACK.
The round trip this replaces is download, find it, open it, edit, come back,
delete the old one because nothing here overwrites, upload, check the mode
survived.
DELIBERATELY NOT THROUGH THE TRANSFER QUEUE, in either direction. The queue
refuses to overwrite, which is the right rule for a file somebody dragged and
exactly the wrong one for a file they are editing, where replacing the original
is the entire intent. The write-back deletes first: OpenWriteAsync at offset
zero writes over the beginning and leaves any tail that is longer — its own
contract says so — which for a config that got shorter means a file ending in
the back half of its previous version. Deleting is the only truncation this
interface offers, and the mode goes back on afterwards because deleting took it.
A stat before every save, compared against what the server said when the copy
was taken, catches somebody else writing while the file is open — which is how a
config gets silently reverted. There is no merge and no button pretending
otherwise; the three answers offered are the three that exist. Length and
timestamp rather than a digest, because a digest is a second full read of a file
there is otherwise no reason to fetch.
Both platform halves are injected: what opens a .conf is a registry
association, a desktop entry or a Launch Services binding depending on the
desktop, and watching a file is a platform object with its own thread. The
watcher watches the directory and filters the name, because a great many editors
write a temporary file and rename it over the top — which to a watcher pointed
at an inode is the file disappearing. The phone gets neither delegate, so the
button is not live there rather than there and disappointing.
◆ TWO THINGS FOUND ON THE WAY, BOTH WORTH STATING.
The shell suite's inline `post` was not serialising the way a dispatcher does.
Routing TransfersViewModel through it exposed a check-then-add in
OnTransferChanged that two threads turn into two rows for one transfer. Harmless
in production, where the UI thread serialises — the fixture was under-specifying
what it stood in for, and now posts under a lock.
And the edit session replaced its own record with `with` on each save, which
left the watcher holding an instance that was no longer the current one: every
save after the first quietly did nothing. The stamp moves in place now, and the
test saves twice.
◆ WHAT IS VERIFIED.
901 across the five suites this touches, 19 of them new. The layout suite earned
its keep three times over: the batch deletion card's path list overflowed the
204-pixel pane at 120, at 72 and at 56 before 32 held, and the edit strip
overflowed by 131 until the whole strip — rather than the log inside it — was
bounded. Each number in those files is measured and says which failure it came
from, because the next person to add a line to either card will move them again.
What no suite covers is the platform halves of editing: Process.Start with
UseShellExecute and a live FileSystemWatcher are the operating system, and a test
waiting on one would be measuring it. The shell's own half — when a save is
written back, when it is refused, what stopping releases — is covered against a
watcher that fires on demand.
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e2733e5cbc |
Notice when a shell ends, say which way it ended, and offer the way back
A terminal whose machine rebooted stayed green for ever. Not "went stale and
recovered late" — for ever: the tab claimed CONNECTED, the elapsed timer went
on counting, and the only thing that ever corrected it was closing the
application. That is the defect this fixes, and it turned out to be two
separate failures wearing one symptom.
◆ THE HANG IS IN SSH.NET, AND KEEP-ALIVE ALONE WOULD NOT HAVE FIXED IT.
ShellStream ends a blocked read from exactly two places: its channel being
closed, and the session raising Disconnected. A shell that exits gives the
first. But Session raises Disconnected from one method only — OnDisconnectReceived,
for a server that politely says goodbye — and a socket that simply fails goes
down a different path entirely: RaiseError fires the error event, sets the
disconnecting flag and disposes the socket, without ever raising Disconnected.
So the stream was never disposed, its Monitor.Wait was never pulsed, and the
read blocked until the process ended. The transport was gone, the client knew
the transport was gone, and nothing woke the one thread that was waiting.
That is why the first attempt at a test for this sat at thirty seconds and
failed. Both halves are needed and neither is sufficient:
- Keep-alive makes the failure HAPPEN. An idle SSH session is a socket
nobody writes to, and TCP has no way to discover that the far end has gone
without writing to it — nothing was asked, so nothing could fail. Thirty
seconds, matching OpenSSH's own ServerAliveInterval examples. It is the
write that matters and not a reply: SSH_MSG_IGNORE need not be answered,
so this is traffic rather than a heartbeat with a deadline, and there is
no timeout invented here to be wrong about a slow link.
- Disposing the stream from the error handler makes it ARRIVE. Queued to the
thread pool and not done inline, which is not tidiness: this runs on
SSH.NET's message-listener thread, and closing a channel waits for the
server's close — processed by that same thread — so an inline dispose is
the listener thread waiting on itself.
SFTP gets the keep-alive too. Its operations are request/response and bounded
by ConnectionInfo.Timeout already, so it needs no equivalent wake-up.
◆ exit AND reboot ARE TOLD APART BY A LATCH, BECAUSE THE OBVIOUS WAY IS A RACE.
Wait for the read to end and then ask whether the transport is still up, and
against a real server the answer is wrong about half the time: this was the
only channel on the connection, so sshd hangs up a millisecond after closing
it. By the time anything could ask, the transport is gone either way — and a
poll would report every ordinary `exit` as a dropped connection.
So ISshShellSession.TransportFailure is set at the moment SSH.NET raises the
failure, which its own ordering puts strictly before the disconnect that wakes
the read. A read that has just returned zero consults a settled value: set if
the transport failed, still null if the remote merely closed the channel. The
pump turns that into a TerminalSessionOutcome — RemoteClosed, ConnectionLost,
ClosedLocally — carried on SessionEnded, which used to hand over a session id
and nothing else. A subscriber cannot work this out afterwards; by the time it
hears, there is no transport left to interrogate.
Deliberately no fourth value for "the remote rebooted". Nothing on the wire
distinguishes a reboot from a cable being pulled, and a name this client
cannot check would be a guess dressed as a fact.
◆ WHAT IS DRAWN, AND WHY IT IS NOT DRAWN OVER THE PANE.
The status bar says DISCONNECTED or SHELL EXITED where it used to say NOT
CONNECTED for both — a word that is honest about a tab still dialling and
useless about one whose shell has stopped. Red for the first and grey for the
second: one is a machine that stopped answering and the other is work
finished, and crying wolf on the ordinary end of every session is its own bug.
The tab strip's dot gains the same fourth state, on both heads.
Under the terminal, a strip carrying the reason and two buttons. It takes its
own Auto grid row rather than overlaying the renderer, and that is forced
rather than chosen: the WebView is a native child view composited above
everything Avalonia draws, so the alternative is collapsing the terminal — and
the scrollback is precisely what the user wants to read, because the last
thing the remote said is usually why it went. terminal.js already writes the
same sentence into the pane; this is the copy that does not scroll away.
RECONNECT reuses the tab in place, which is what the word means to somebody
who pressed it: the terminal they were working in comes back, where it was.
It dials through the vault's ordinary connect path, so every refusal — a key
that has left the keychain, an unknown host key, a group default that has
changed since — is decided in the one place that already decides them; what
this adds is which tab the attempt belongs to. The old session is closed as
part of it, because a dead shell still holds an authenticated connection this
process has stopped reading, and its pane still holds an xterm, a scrollback
and a WebGL context, of which a browser hands out about sixteen.
Two refusals it makes rather than pretending: a host reached by typing an
address has no keychain entry to redial, and one that wants a password typed
goes to the keychain with the sheet raised rather than being dialled with an
empty box. Both say so on the strip where the button was pressed, not only in
the vault's status on a screen that surface is not.
TRY AGAIN appears on a refused connection for the same reason, and it is worth
as much: the commonest refusal is a host that was not up yet.
◆ WHAT IS ACTUALLY VERIFIED.
Two tests against a real sshd in a container. `exit` is reported as the remote
closing the session — the one a polling implementation fails, and a fake shell
cannot show it because a fake has no server behind it deciding to hang up. And
a live shell losing its transport is reported as a lost connection, produced
by dialling through a plain TCP relay the test owns and then cutting it; the
container is shared by the collection, so killing sshd was never an option.
The first draft of that second test used LoopbackProxyTests' SOCKS forward and
timed out: disconnecting the carrier of a ForwardedPortDynamic does not close
the loopback socket it accepted. Recorded in the test, because it is a
property of SSH.NET's forwarder rather than of anything here, and it is not
what a dying machine looks like.
What no test reproduces is the waiting. A relay that closes sends a FIN, so
the socket reports itself at once; a machine switched off sends nothing, and
finding that out is the keep-alive's business and the OS's retransmit budget's
— neither of which a test can hurry along without a clock this code does not
own. A reboot is prompt in practice because the machine comes back and RSTs.
Beside those: three pump outcomes, three workspace announcements, and seven
shell-flow tests covering the drop, the clean exit, reuse of the tab, retry
after a refusal, and both ways a reconnect can honestly come to nothing.
Also fixed in passing: SshNetShellSession.IsOpen read ShellStream.CanRead,
which is documented as always true — the stream stays readable after disposal
so buffered output can be drained — so it had answered "yes" for every shell
that ever existed. It reads CanWrite now. And MainWindowViewModel's session-
ended handler moved from Dispatcher.UIThread.Post to the injected post
delegate, which is what makes any of the shell half testable at all; the
remark listing the three unreachable posts is one shorter.
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c2c860b4f2 |
Give the seated user the TPM, so nobody has to join the tss group
ADR 0007 decision 4 refused this a commit ago, on the grounds that widening
access to the machine's TPM is a system-wide decision an application package
should not make for an administrator. That refusal is overturned here, and the
reasoning it is replaced with is narrower rather than louder — because the
refusal had treated "widen access" as one thing when it is two.
Adding a person to `tss` is what the refusal was really about, and it stays the
wrong answer: permanent, effective over SSH, applying whether or not they are at
the keyboard, and needing an administrator and a fresh login before the feature
appears at all.
Tagging /dev/tpmrm0 with `uaccess` is a different thing. It is systemd's own
mechanism for this exact question — the one /dev/dri, webcams, scanners and FIDO
keys already use — and logind grants the ACL to the user of the *active local
session*, then takes it back when that session ends. Not over SSH, not on an
inactive VT, not to daemons. The rule changes neither the mode nor the group, so
everything that worked before still works and the ACL is layered on top.
tpmrm and never tpm, which is what makes it defensible at all: /dev/tpm0 is the
raw device and is exclusive, where /dev/tpmrm0 is the kernel's resource manager,
which virtualises handles and isolates callers precisely so that more than one
unprivileged program can use the chip.
◆ THE COST IS A DENIAL OF SERVICE AND NOT A DISCLOSURE, AND IT IS WRITTEN DOWN.
TPM objects are protected by their own auth values, so this lets nobody read
anybody else's sealed data. What it allows is *failed* attempts — and a TPM
answers enough of those by locking out everyone, which is the same anti-hammering
this project relies on to make a four-digit PIN safe. On a machine that unlocks
its disk with the TPM at boot, somebody sitting at it can trip that and stop the
next boot from unlocking until it recovers.
An administrator who does not accept that masks the file:
sudo ln -s /dev/null /etc/udev/rules.d/71-dodossh-tpm.rules
which is the standard override, survives upgrades, and puts DodoSSH back to
behaving as though the machine had no TPM. That is in the rule's own comments,
because the person who needs it is reading the file rather than the ADR.
Numbered 71 because 60-tpm-udev.rules is what creates the node's ownership and
73-seat-late.rules is what turns the tag into an ACL; verified in that order on
Fedora 44, along with `udevadm verify` accepting the file and the mask being
reported as "masked by previous entry". %post reloads and replays it against the
tpmrm subsystem, because a rule that waits for a reboot is a feature that does
not work on the day it is installed.
Both channels install the same path deliberately: this is about the machine's
TPM rather than about either build, the file is byte-identical from both, and
giving each its own copy would mean removing one package silently revoked the
other's access.
Phase 19 grew a check that the ACL exists for the local session and does *not*
exist for an SSH one, and another that masking the rule really does put the
machine back — then tells you to undo it before the checks that follow.
Also recorded, after it cost five confusing failures: swtpm serves exactly one
client, so a shell readiness probe sitting on the port makes the whole device-key
suite fail with "The TPM closed the connection" and nothing pointing at why.
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4552538533 |
Let the Linux head check for updates, and seal its device key in the TPM
Two things the RPM shipped without, and the reason they arrive together is
that both are the same question — what may this platform ask of the machine,
and what must it not ask of the user.
◆ UPDATES: THIS CLIENT CHECKS AND FETCHES, AND PACKAGEKIT INSTALLS.
ADR 0013 rule 11 said there was no updater at all, and that went too far. It
conflated noticing that a newer build exists with installing it: the second is
what the trust argument is about, and the first is not — a client that checks
a fixed address and tells you what it found has taken no capability from
anybody. Written as a flat refusal, the rule bought its safety by paying a cost
that was avoidable, and the ADR now says so in its own words.
So LinuxUpdateChannel reads the rolling nightly release, compares versions the
way rpm compares them, downloads the package, verifies its digest and hands the
file to PackageKit over gdbus. Polkit asks; the user may say no; nothing is
torn down before the answer, because ApplyingEndsTheProcess is false and the
shell already knows what that means — it is the phone's shape, and declining an
update must not cost somebody their open shells.
Three details that are load-bearing rather than incidental:
- The comparison is rpmvercmp and not SemVer, because rpm is what will accept
or refuse the install. Same argument ADR 0014 makes for versionCode. The
installed side is read out of the rpm database rather than derived from the
assembly, so the SemVer-to-rpm translation exists in exactly one place. All
28 expected values in RpmVersionTests came out of rpm itself rather than out
of a reading of the algorithm.
- The digest is checked and is not a signature. Velopack verifies its own
downloads and Android checks a signature; an RPM over HTTPS has neither. The
manifest names a SHA-256 and a mismatch deletes the file rather than leaving
something installable-by-hand in the profile directory.
- ONLY_TRUSTED is cleared, which is what routes the request to polkit's
package-install-untrusted action. The package is unsigned, so requiring
trust would fail every update at the last step.
◆ THE DEVICE KEY: SEALED IN THE TPM, BEHIND A PIN THE TPM CHECKS.
ADR 0007's amendment is the bar: a gate inside the process is not a gate. The
key is sealed into a TPM 2.0 keyedhash object whose userAuth comes from a PIN,
so unsealing is a command the chip refuses; the blob is encrypted to the storage
hierarchy and is useless on any other machine; nothing here ever compares a PIN.
The sealed object deliberately carries no NoDA attribute, and that one omission
is the whole reason four digits is enough: every wrong answer advances the TPM's
dictionary-attack counter and the chip stops answering entirely once it trips.
Measured at four wrong tries against a software TPM, after which the correct PIN
gets nothing either. It is asserted by a test rather than left to a reading of
the template, because removing the attribute leaves every other assertion
passing.
This is weaker than Hello and Touch ID and the difference is invisible, so it is
written down in three places rather than smoothed over: those raise their prompt
from inside the platform and this one is a window we draw. The prompt is
deliberately plain for that reason — teaching people that a convincing DodoSSH
PIN box is a system dialog is the one thing this design must not do.
Rejected, each for failing the amendment: the Secret Service API, which has no
per-use consent and is DPAPI's shape exactly; fprintd, which answers a question
and holds nothing, so skipping the call skips the gate; and a polkit-gated root
helper, which would work and puts a privileged component in a package that
installs nothing setuid.
Availability is narrower than "has a TPM": on Fedora /dev/tpmrm0 is root:tss and
desktop users are not in tss, so the ordinary case reports unavailable and keeps
asking for the passphrase. Shipping a udev rule to widen that is refused — it is
the administrator's decision, not an application package's.
◆ WHAT IS ACTUALLY VERIFIED, SINCE THAT IS THE PART THAT USUALLY ISN'T.
This is the only device key store in the repository with real coverage, and it
is only possible because the PIN is a delegate and the TPM is a device: seal,
unseal, wrong PIN, lockout, decline and a foreign blob all run unattended
against a software TPM. Windows and macOS cannot be tested at all — their
prompts block a suite forever, which WindowsDeviceKeyStoreTests records.
TSS.Net's own TcpTpmDevice cannot reach swtpm: it opens the platform socket too
and exchanges a handshake only the Microsoft reference simulator answers, so
Connect() blocks with no error and no timeout. SoftwareTpm speaks the data
channel and nothing else.
The suite also lied once and was fixed: the lockout test trips shared state, and
without a DictionaryAttackLockReset in Dispose every later test got null from a
correct PIN — six of them assert null and passed for entirely the wrong reason.
End to end on a real Fedora 44: a genuine linux-x64 publish packages, installs,
and every DT_NEEDED in the installed tree resolves except liblttng-ust, which is
the one this spec deliberately excludes. What no runner covers is /dev/tpmrm0,
PackageKit and polkit, and Phase 19 grew five checks for exactly those.
Also fixed: the magic-bytes literal picked up raw control characters, which made
LinuxDeviceKeyStore.cs binary to git — no diffs and no line-ending normalisation.
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b2f93a172b |
Give the file listings' columns their content back
The columns in both panes were fixed pixel widths, and measuring them against what they actually draw found them wrong at both ends of the range this screen gets. ◆ MODIFIED WAS TRUNCATED AT EVERY WIDTH THE APPLICATION HAS EVER BEEN DRAWN AT. It prints a sixteen-character timestamp, which needs 116 pixels, and it had 52. On a maximised window that read "2026-08" beside a NAME column with four hundred empty pixels in it. PERMS needs 60 for a ten-character mode and had 48; SIZE needs 58 for "999.9 GB" and had 56. ◆ AND AT THE SESSION SHELL'S OWN NARROWEST, NAME MEASURED ZERO PIXELS. Twenty for the glyph plus 56+52+48 for the numbers is 176 of the 180 a row has, so the remote pane drew sizes, timestamps and modes for rows whose names were not on screen at all. That is the same fault as the one above rather than a second one: the numbers were picked for the narrow budget, could not have fitted their own content there, and never grew anywhere else. Star columns with a MaxWidth answer both, because the cap is what makes "share the width" mean the right thing at each end. Wide, the three numeric columns stop growing at what their text needs and NAME keeps every remaining pixel. Narrow, nothing carries a MinWidth to overflow with, so all four give ground together and NAME — weighted heaviest — is the last to run out. MODIFIED takes the extra weight so it reaches its cap first, being the widest content and the column most often actually read; the local pane's NAME carries the remote's PERMS weight folded into it, which is what makes SIZE and MODIFIED come out the same width on both sides of the arrow column. Timestamps.Format already argued that both panes write a time the same way so the two can be read against each other, and two different widths would have made that argument for nothing. ◆ THE HEADINGS RAN TOGETHER, and that was visible as one word: SIZE ended on the pixel MODIFIED began at, so the row read "SIZEMODIFIED". They are right-aligned in their own columns, so the gap has to come from a left margin on each — which does not move the label and does stop the column before it reaching this one. The three now carry one, and ellipsize rather than clip where even the label has no room. ◆ TWO PLACEHOLDERS WERE CUT OFF MID-WORD, which reads as a rendering fault rather than as a hint. MKDIR's box drew "new directo" — 101 pixels of text in 74 pixels of room — and says "directory" now, since the button beside it carries the "new" half already. The pane header's path box drew a path ending mid-segment at the narrow budget and says "path": the only time that placeholder shows is on a pane with nothing connected, where the box is disabled and the invitation below is doing the explaining, and what the box is for is in its tooltip where there is room for it. FOUR COPIES OF THE COLUMN DEFINITIONS, one heading row and one row template per pane. Avalonia cannot share a ColumnDefinitions instance between two Grids — each mutates its own computed sizes — and SharedSizeGroup only applies to Auto columns, so what catches a copy that drifts is measurement rather than discipline: every cell is held against the width its own text needs when unconstrained, the headings against each other, and NAME against zero at the narrowest budget. Nothing asserts a number this file also wrote down, which is the failure mode a test of a layout most easily has. The roomy end is measured at the width a maximised 1843-pixel window leaves, which is where this was reported from; LayoutHarness.SessionScreenWidth cannot express it because that constant is pinned to the window's minimum, so the arithmetic is spelled out beside the test that uses it. |
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882f01c515 |
Type a path on the SFTP pane, and put a file right without deleting it
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Three things the file browser could not do. Somewhere to go had to be walked to, a file that landed under the wrong name could only be removed and sent again, and the listing went on showing the directory as it was before this application put something in it. ◆ THE PATH IS A BOX NOW, not a TextBlock printing where the pane was. A breadcrumb only reaches what is under the directory already listed, so crossing a host's filesystem cost a click and a round trip a level, and a path somebody already knew could not be entered at all. Enter goes; Escape puts back what the pane is really showing. What is typed may be absolute, relative to the directory showing, or start at ~ — the four shapes a shell takes, because somebody typing into a box is typing what they would type into a shell. SftpPath.Resolve turns all of them into one absolute path, and it resolves them here rather than handing a relative path to the server: the server would resolve it against the session's own working directory, which is not necessarily the directory the breadcrumb above the box is showing. `..` is collapsed textually, which differs from cd through a symbolic link; the alternative is a realpath round trip before anything lists. The box holds its own value rather than RemotePath itself. Binding it straight to the path would navigate on every keystroke — `/`, then `/v`, then `/va` — a round trip and a failed listing per character. Every other way of moving writes the real path back into it; a refused listing deliberately does not, because the path that did not resolve is the one worth having in front of you. ◆ RENAME AND MOVE, and DELETE moves to join them. It had been sitting in the pane header beside UP and REFRESH — two things that move the pane and one that destroys a file, in one row — and the three that act on the selected row are now together in a row of their own, under the name of the row they are about. One SFTP rename underneath both new operations and two separate questions on the screen, because the answer is a different kind of thing each time: a rename takes a name and must not take a path, a move takes a directory and must not take a name. One box asking for a destination path would be fewer controls and a worse question — the two mistakes it invites are exactly the ones the split makes impossible. Each form opens on the answer that changes nothing, so what gets edited is the half somebody came to change. Three refusals are made here, and they are the ones a server's message would not explain: a separator in a name (no such file, about a directory nobody meant to name), a destination equal to the source (success, and a file that did not move), and a directory into itself (EINVAL, true and useless). Everything else is the server's — a name already taken, a path that is not there, a mount that cannot be crossed — and arrives in the status line in its own words. Neither is painted in the deletion card's red: a rename is undone by renaming back, and spending that red twice makes it stop meaning anything. ◆ THE LISTING REFRESHES ITSELF when a transfer lands in it. Both panes, since an upload lands on the host and a download lands here and either leaves the pane that is showing that directory a step behind. Only the directory actually on screen: a queue moving a hundred files elsewhere must not be a round trip per file for a listing nobody is looking at. It waits rather than interrupting. Another operation running would have two listings racing for one collection, and re-listing under an open question is how the row somebody answered about stops being the row that gets acted on — so the staleness is remembered and settled at the end of the operation or when the question is dismissed. It says nothing either way: nobody asked for it, and the status line at that moment is carrying the news about the transfer. The selection survives, re-found by path, which is what makes an unasked-for refresh safe to run under somebody's pointer at all. ◆ THE LAYOUT SUITE FOUND A REAL FAULT and the fix is where the height goes. The rename form did not fit the 204 pixels the session shell's own sidebar leaves this pane — MKDIR and the listing were pushed off the bottom. The form is shorter now (the placeholder says what the box wants, so there is no field label above it), and the item row and the breadcrumb step aside while any of the three questions is up, which is what the phone head already did with its own buttons. Measuring also settled something the markup had been claiming and is not true: at that width the listing collapses to nothing under any of the three cards, the deletion card included, and has done since the sidebar arrived. So "the row it is about is still on screen" is retired from the deletion card's remark, and the full path each card carries is what identifies the row instead. Recorded where it is drawn rather than left to be rediscovered. TESTS. SftpPath.Resolve gets the four shapes, ~ with and without a home to expand it to, a blank box, and climbing past the root. ShellFlowTests gets nine against a session that records what it was asked to do — which path was renamed, which directories were listed — rather than against the sentence this code writes about itself: the path box absolute and relative, rename in place, the separator refusal, a move by relative path, the no-op refusal, the three questions displacing each other, and the three rules the automatic refresh follows. The local half is in TransferQueueingTests, where a real folder answers. Two new shapes are measured, and the deletion card's own measurement moves to the connected state — the only state it can be asked in, and the narrow one. What the tests cannot reach is in docs/manual-checks.md as phase 2b: a real server's cross-device and name-taken refusals, and a soft keyboard, which is why the phone's path box has a GO button rather than trusting whatever the IME decided to draw on its return key. |
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ef12e8cc99 |
Stop the data plane's tests racing the socket they just connected
CI went red on the run that added the renderer tests, and not on anything they assert: TerminalDataPlaneTests.Output_ReachesTheRenderer read the output frame where it expected the session's opening one, having lost a race that has been in the helper since it was written. Connected and attached are two different moments. ClientWebSocket.ConnectAsync completes on the 101, which UpgradeAsync writes before it has a WebSocket to attach — it builds one from the stream and swaps it in a few instructions later, on the accept thread. SendAsync drops anything sent in between, which is the transport's documented contract rather than a bug: there is nowhere to put a frame for a renderer that is not there, and queueing it is the unbounded growth the credit window exists to prevent. So a helper that returned on the handshake and let its caller send immediately was betting on thread scheduling, every run, on every test in the file. It only started losing now because that assembly grew nine tests and a JavaScript engine to run them in, which is more work in parallel with a window measured in instructions. The race is older than the branch that exposed it. ConnectAsync now waits for the plane's own SocketAttached, subscribed before the connection because the event can be over before ConnectAsync returns, and bounded so a socket that never attaches fails the helper instead of hanging the suite in a later receive. TerminalWorkspaceTests.ConnectRendererAsync has the same exposure through OpenSessionAsync's opening frame and now waits on WaitForRendererAsync, with a note on why that is enough for the reattach tests and what would stop being enough. ◆ NOTHING IN src CHANGED, AND THAT IS THE CONCLUSION RATHER THAN THE SHORTCUT. Production waits for exactly this moment already — every path that opens a session goes through TerminalWorkspace.WaitForRendererAsync, which resolves from the same few lines that raise the event this helper now waits on. Only the tests skipped the gate the application does not. Verified by widening the window rather than by hunting the flake: a 100ms delay inserted between the 101 and the attach, in a throwaway tree, hangs the old helper outright — both frames dropped, the test blocked in receive — and passes 89/89 with this one. Green three times over on the CI platform besides (Alpine, musl, Release, dotnet/sdk:10.0-alpine). |
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963cb7f670 |
Reconnect the terminal view when somebody comes back to it
Going back to a terminal left alone for a while found it stuck on "Reconnecting the terminal view…", and stuck is the right word: the banner stayed and nothing behind it was reconnecting. The page's whole recovery story was a setTimeout chain, and a chain is exactly what a WebView is entitled to stop running. Chromium throttles timers in a page nobody is looking at — down to once a minute once it has been hidden five minutes — and a renderer that is frozen, or reclaimed and not yet reloaded, runs none of them. So the socket drops while nobody is watching, the banner goes up, the retry is scheduled, and the retry is then the one thing not running. Three defects, each of which leaves that banner up for the rest of the page's life. ◆ NOTHING LISTENED FOR THE PAGE COMING BACK. The only thing that could clear the banner was a timer that may never fire. terminal.js now reconnects on visibilitychange, focus and online — the events that mean somebody is looking again, and the ones that cannot be throttled — cancelling the pending timer and resetting the backoff. Over a healthy socket all three do nothing, which is what makes them safe to fire as often as clicking a window does. ◆ A HANDSHAKE THAT NEVER FINISHED WAS INVISIBLE. Every retry was scheduled by a close or an error, so an attempt parked in CONNECTING — which is what a suspended renderer leaves behind — scheduled nothing at all, ever. There is now a five-second watchdog on the handshake. ◆ STALE SOCKETS SCHEDULED RETRIES, AND THAT ONE IS A LOOP RATHER THAN A STALL. connect() never detached the old socket's handlers, and the host aborts the displaced socket on takeover — TerminalDataPlane.UpgradeAsync, doing exactly what it should. That close read as a fresh failure and scheduled a retry against the socket that had just succeeded, whose own close scheduled the next: no fixed point, reconnecting every second forever with the banner up for most of it. Every handler now asks whether it is still the page's own attempt, and connect() closes what it abandons. ◆ WHICH OF THE PLATFORM BEHAVIOURS ACTUALLY BIT IS NOT ESTABLISHED, and the fix does not depend on knowing. Throttled timers, a frozen renderer and a reclaimed one all end at the same dead timer; guessing between them would have produced a narrower fix for one of the three. THE TEST RUNS terminal.js ITSELF, in a fake browser, inside dotnet test. RendererPage loads the file the shell project ships — not a transcription of its logic into C#, which would be a copy that stays correct while the page rots — into a Jint engine, one per test, over a harness that fakes a WebSocket and a clock and nothing else. Jint rather than a node script because CI would run the node one and nobody's inner loop would; the cost is that Jint is not Chromium, so this proves the page's logic and nothing about how a WebView behaves. That line is drawn in RendererPage's remark and picked up by two new manual checks, 1.10 for the desktop and 11.12a for the phone, which own the platform half. Four of the nine tests fail against the page as it stood — the stale close, the parked handshake, and the two wake-ups. Two more assert that a wake-up over a healthy socket does nothing, and pass against either version on purpose: they are what stops the cure being worse. Left alone deliberately: a socket that is open and dead shows no banner at all, because readyState still reads OPEN. That looks like a terminal that swallows what is typed, needs a liveness probe rather than a faster retry, and is written down at the end of 11.12a rather than quietly bundled in here. |
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68964d8a34 |
Merge pull request 'Name a quick-connect result's vault, and search on it' (#13) from claude/search-items-vault-display-865eb0 into main
Reviewed-on: #13 |
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e252d337d1 |
Take the SSH.NET release that fixes the SCP path traversal
Every project in the repository stopped building, on a warning about a package
none of them had changed:
error NU1903: Warning As Error: Package 'SSH.NET' 2025.1.0 has a known high
severity vulnerability
GHSA-q939-rpr3-3284 was published after the pin was written. ScpClient.Download
in recursive mode takes the filenames the server sends and joins them to the
local destination without validating them, so a malicious or compromised SCP
server can name "../" its way out of the download directory and write anywhere
the client process can — CWE-22, 7.1, and the same shape as OpenSSH's
CVE-2019-6111 with the traversal left in. Everything up to and including
2025.1.0 is affected; 2026.0.0 is the fix.
◆ THIS APPLICATION WAS NEVER EXPOSED, AND THE UPGRADE IS STILL THE RIGHT ANSWER.
Nothing here constructs a ScpClient. File transfer is SftpClient throughout —
SshNetSftpSession is the only path to a remote file — so the vulnerable method
has no caller to reach it from. That makes this a hygiene bump rather than an
incident, and it is worth saying plainly because the alternative on offer was a
scoped NuGetAuditSuppress with that reasoning written beside it. A suppression is
what you reach for when there is nothing to upgrade TO. There is: the maintainers
shipped the fix, taking it costs two nullable annotations, and a suppression
would have left this repository carrying a known-vulnerable library and a comment
explaining why that is fine — which stays true only until somebody adds the first
ScpClient call and has no reason to look here.
BouncyCastle.Cryptography moves 2.6.2 -> 2.7.0 as a consequence, not a
preference. CentralPackageTransitivePinningEnabled makes the PackageVersion here
the resolved version for a transitive dependency, and SSH.NET 2026.0.0 asks for
2.7.0, so a pin left at 2.6.2 is a downgrade error rather than a version this
repository gets to choose. Its comment records the constraint so the next person
does not try to walk it back.
◆ THE RELEASE NOTES SAY NO BREAKING CHANGES. THE NULLABLE ANNOTATIONS DISAGREE.
ConnectionInfo.CurrentServerEncryption is now string? — correct of them, since it
really is null until the key exchange completes — and that is CS8601 at both
places this codebase reads a cipher off a live connection. Neither can observe
the null: SshNetConnection and SshNetSftpSession are only ever constructed after
ConnectAsync has been awaited, which is what their existing remarks already say
and why the reads are at construction rather than lazy.
Coalesced to string.Empty rather than silenced with !, because empty is already
this codebase's word for a cipher that could not be read. MainWindowViewModel's
NullIfEmpty exists for exactly that, TerminalWorkspace.GetSessionFacts already
hands over string.Empty on the same grounds, and the status bar collapses on it.
So the boundary keeps the interface's non-nullable string, no consumer changes,
and an unreachable null would degrade the way a real one already does.
SshNetConnection's remark asserted that SSH.NET types the property non-nullable
and that reading straight through was therefore honest rather than lazy. That
sentence is now false, and a comment contradicting the line beneath it is worse
than no comment, so it says what is actually true: the coalesce is there for the
annotation and the pre-key-exchange window this call site cannot be in.
The Android head needed its own restore. It is outside DodoSSH.slnx, so the
solution-wide --force-evaluate does not reach it, and left alone it would have
kept the vulnerable pin and gone stale under locked mode — the hazard
platform-flags.md records, arriving on schedule.
Heeding the warning left by the ILLink commit: --force-evaluate on Windows
rewrote all 39 lock files with CRLF, and 21 of them had no content change. Only
the 18 that really moved are here.
Verified with `dotnet build` at the root, no audit-disabling flags: 0 errors,
NU1903 gone, and the 21 remaining warnings are the pre-existing Meziantou/CA and
Avalonia ones that were present in the failing build too.
A library upgrade is not a version string, so the suites that exercise it were
run against live containers rather than trusted: 87 Ssh, 80 Terminal, 27
ObjectStore, 10 Transfer, none failing.
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fdea3911c1 |
Name a quick-connect result's vault, and search on it
Ctrl+K reaches every vault the session holds a key for — that is deliberate, and it is what makes the palette worth opening from anywhere. What it did not do was say where a result came from. A team and a person who both call a machine prod-db got two identical rows, and Enter took whichever the ranking happened to put first: the same three characters, two different machines, depending on nothing anybody could see. Nothing new is computed for this. HostRowViewModel.VaultBadge has been filled in since the host list learned to span vaults, and it is already drawn on the hosts board, the keychain, the snippets list and the known-hosts pane. The palette was the one list reaching across every vault that did not print it. ◆ THE VAULT IS THE LAST OF THE FOUR RANKS, AND THAT IS THE POINT. A vault name is the widest reading of the three the palette had: one word matches every host in that vault at once, where a name or an address matches one machine. So it sits behind name-starts-with, name-contains and address — otherwise typing a machine's name would bury it under everybody else's. It matches on HasVaultBadge rather than on VaultName, so the search only ever matches what the row actually shows. A session holding one vault prints no vault on any row, and matching it there would answer "personal" with the entire keychain, ranked behind nothing and explained by nothing on screen. In the row, the right-hand column becomes two lines against the two on the left, in the same order: what this is above, how it is reached below. With one vault the badge is empty, the line collapses, and the kind word stays centred exactly where it was. The name is capped and ellipsised because that column is Auto-sized — a long vault name would otherwise take its width out of the host name beside it. Three tests, one per claim. VaultSharingTests puts platform-gateway in the personal vault and prod-db in "Platform secrets" and types "platform": both come back, the gateway first. ShellFlowTests types the personal vault's own name into a one-vault session and gets nothing. QuickConnectTests is the markup's half — the shared vault's row draws PLATFORM SECRETS, and a one-vault row draws no vault at all — with the shared vault put into the session through the layout suite's own StubTeamServer, as the settings pages' suite does it. 449 App tests and 155 layout tests pass. Both suites were run with -p:NuGetAudit=false: SSH.NET 2025.1.0 has picked up GHSA-q939-rpr3-3284 and NU1903 fails restore repo-wide, which predates this branch and is nothing to do with it. No package or lock file is touched here. |
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10f80bded1 |
Merge pull request 'Colour the window's frame, inset Hosts like its neighbours, drop Pins' (#9) from claude/title-bar-color-windows-6d386c into main
Reviewed-on: #9 |
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25407756c3 |
Look for a newer build the moment the application starts
The first pass of the update loop waited two minutes. Every pass after it came six hours apart, which is the right interval for a product that ships rarely — but the delay in front of the first one quietly excluded a whole way of using this application. A client opened to reach one host and closed again is over before the two minutes are. Used that way, it never checks at all: not once, not slowly, never. That is precisely the machine ADR 0011 names as the real cost of distributing outside a store — quietly a year behind — and the galling part is that the mechanism to fix it was switched on the whole time and simply never reached. The delay's own argument is recorded in the diff it is being removed from, and it was not a bad one: nothing anybody does in their first two minutes depends on an update, and launch is already contending for the network with a schema migration, a resumed sign-in and a first sync, at the one moment somebody is watching the window. What it weighed was the cost of checking early against the benefit of checking early. It never weighed the cost of not checking at all. ◆ THE YIELD IS WHAT KEEPS THIS OFF THE LAUNCH PATH, AND IT IS NOT DECORATION. Start() is called from MainWindowViewModel.StartAsync ahead of the migration, so an inline first pass would run whatever the channel does before its own first await — Velopack reads the install layout from disk — between the user and their window. Yielding hands the rest of launch back and puts the check in a later turn, which is the same moment in every sense anybody can perceive and none of the cost. So the answer to the delay's argument is not that it was wrong; it is that a yield buys most of what two minutes bought. Task.Yield takes no token where Task.Delay did, so the loop body now observes cancellation at its head. Without that, an application closed during launch spends its last moment asking a release channel about a build it will not run. Two things deliberately not changed. The AUTOMATIC UPDATE CHECKS preference still gates the pass — "on start" means every start, not regardless of what the user asked for, and that setting is already on by default. And the data cost is unchanged rather than merely acceptable: a check is a few hundred bytes and the download only follows if something newer exists, so this moves the same traffic earlier without adding any. That matters most on the phone, where the same loop runs against AndroidUpdateChannel. TheFirstPassRunsAtStart_RatherThanOnADelay drives the real loop rather than CheckOnceAsync, which is the one thing that file otherwise avoids — and here it is the point, because the claim is about when the pass happens rather than what it does. It waits on the pass and not on a clock, so there is nothing to be flaky about: a regression that puts a delay back does not fail on a margin, it spins until the suite's own cancellation ends it. DisposingStopsTheLoop keeps its assertion and gains a note that it is now a race rather than a formality. §16.7 of the manual checks gains the sentence that reopening the application does what CHECK NOW does. It is the step somebody following that section would otherwise discover by accident. 447 App tests and 153 layout tests pass. |
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cec73010d3 |
Colour the window's frame, inset Hosts like its neighbours, drop Pins
Three things one pass over the shell's chrome turned up, none of them related to the others beyond having been looked at together. ◆ A PALE STRIP ACROSS THE TOP OF THE WINDOW ON WINDOWS, and it is not this application's titlebar. Avalonia's Win32 backend gives a BorderOnly window WS_BORDER | WS_THICKFRAME and then calls DwmExtendFrameIntoClientArea with one-pixel margins on all four sides — read out of WindowImpl.UpdateWindowProperties in 12.1.1 rather than guessed at. So DWM owns a hairline of every edge and fills it with the system's caption and border colours, which follow the user's personalisation settings: with "show accent colour on title bars and window borders" on, that is blue against a near-black shell. Nothing in the visual tree painted those pixels, which is why nothing in the visual tree could cover them. NativeWindowFrame sets DWMWA_BORDER_COLOR and DWMWA_CAPTION_COLOR to the window's own Background, so the hairline still exists — the resize grip is on it, the drop shadow hangs off it — and cannot be seen. Deliberately not DWMWA_COLOR_NONE, which removes the border outright and leaves a near-black window with no edge at all on a dark desktop. Windows 10 gets the dark-mode attribute and nothing else, because the two colour attributes are Windows 11 and DwmSetWindowAttribute simply answers E_INVALIDARG there. Called from OnOpened, not the constructor: there is no platform handle until the window is shown, and calling early is a silent no-op — which looks exactly like a fix that does not work. Verified on screen on Windows 11. ◆ THE HOSTS HEADER SAT A STEP LEFT OF AND ABOVE EVERY OTHER SCREEN'S. Keychain, Snips, Logs and Pins all frame their content with Margin="26"; Hosts was on 16 a side and 20 on top. It is 26 all round now, stated per row rather than once on the root, because the board's ScrollViewer is deliberately full-bleed so that its scrollbar rides the pane's edge, and because a root margin would also inset the drawer, which draws its own. That cost the cards ten pixels, and the layout suite is what said so: TheHostsGridKeepsTwoColumnsAtTheMinimumWithTheDrawerOpen failed, because Border.tile's 224 was derived from the board's old 16-pixel margins and the grid quietly collapses to one column at exactly the size this application guarantees. 224 becomes 214, with the arithmetic in App.axaml rewritten — it had also gone stale in a way that hid itself, still citing the 1016 minimum and 190 rail from before v5b, whose two changes happened to cancel. ◆ PINS LEAVES THE RAIL, and only the rail. KnownHostsScreen is still built and still one click away, from "Host keys" on the Keys screen's own header, which was always the second way in. The row was kept through v5b on the grounds that the mock has no screen for approved host keys — a reason for the screen to exist, and never a reason for a rail entry once the keychain had a door to the same place. Two rows landing on one screen is a rail that has to be read twice. MainWindowViewModel.IsKnownHostsShowing stays: it names a real shell state and ShellFlowTests still asserts on it. design-import-gaps.md recorded that row as a deliberate deviation and manual-checks.md Phase 1.1 walked the rail entry by entry; both are corrected, and the manual check now reaches the screen the way a user would. The layout suite's rail row count moves from six to five with it. 153 layout tests and 446 shell tests pass. The frame is confirmed by eye; the Hosts inset and the rail are covered by the layout suite but were not seen running, because the instance launched to check them came up locked. |
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766fe6aebe |
Stop the test sshd penalising the suite for its own host-key refusals
The SSH suite has failed intermittently for months with SshConnectionException "The connection was closed by the remote host", within milliseconds, on whichever class happened to be running. Two previous attempts guessed at the cause and said so honestly; this one has a mechanism and a before/after. ◆ THE CAUSE IS PerSourcePenalties, WHICH THIS SUITE PROVOKES BY DESIGN. OpenSSH 9.8 added per-source penalties and 10.x enables them by default; the image runs 10.3 and its config never mentions the keyword, so the compiled-in default was what ran. A source address that repeatedly disconnects without attempting authentication gets penalised, and while the penalty holds every connection from it is answered with the clear-text line "Not allowed at this time" and then closed. That is exactly the traffic this suite generates. This client's first contact with an unknown host is a connection deliberately refused at the host key — a disconnect with no authentication attempt — so every helper that learns a host key by being turned away first, plus RefusingTheHostKey_AbortsTheConnection and AnUntrustedHost_IsRefusedExactlyAsAShellWouldBe, feeds the penalty counter. Enough of them close together and sshd stops talking to the test host for a while, then starts again. Measured on a fresh container, probing 200 times with connections of that shape: with the image default, the first refusal came back at probe 18 and 183 of the 200 were refused. With PerSourcePenalties no, none of 200 were. That is the before/after the earlier attempts could not produce. It also explains the shape of the failure, which never fitted a throttle. The class that failed lost EVERY connection it made rather than a random few — including the one test that expects a refusal, which passed throughout for the wrong reason — while the classes around it were untouched. That is a window in which the server refuses one source, not a probabilistic drop. Both earlier diagnoses are recorded in the fixture so they are not tried again. MaxStartups was blamed on the reasoning that xUnit runs test classes in parallel, so ten unauthenticated connections would be in flight at once; but every class touching this server shares one collection and xUnit parallelises collections, not classes, so they run one after another and never have more than a connection or two open. The reload window was blamed next, and a wait for the banner was written and removed as unproven — it was unproven because the banner answers perfectly right up until the penalty lands, so a check that stopped at the first "SSH-" ran entirely inside the good part. MaxStartups is kept, on the narrower argument that it is right regardless: a connection throttle is hardening a test server has no business reproducing. Removing it would be a second change riding along with this one. The readiness gate that replaces the reconfigure's silence is a guard rather than a wait. It requires 25 connections answered back to back, which is the specific provocation rather than a soak test: 25 is above the measured threshold of 18 on purpose, and it costs under a second when the setting is off. Ten was tried first and was worse than useless — it sits below the threshold, so it passed against a server that was still penalising. With the fix removed the gate now fails in a minute naming PerSourcePenalties and quoting the server's own "Not allowed at this time", instead of the suite failing later somewhere unrelated. The gate also closes a hole the container's own readiness cannot: a log line and netstat showing :2222 both pass on a container whose sshd has gone, because Docker publishes the port with a host-side proxy that accepts before it has anything to forward to. It is probed from the host rather than with docker exec for the same reason it matters — that is the path the tests take, and penalties are counted per source address. Rejected: patching sshd_config from /custom-cont-init.d to avoid the reload entirely. It looks like the right hook and is not — the container's log puts "sshd is listening on port 2222" before "[custom-init] Files found, executing", so a script there edits a file the running server has already read. It leaves a config that greps correctly and a server behaving as though it were never touched, which is the same trap as patching the wrong one of the image's two config files. Twenty-eight tests failed before that was noticed; the finding is in the fixture. Four consecutive full-solution runs clean, and the SSH suite green on every run since. 1,861 tests, none failing. |
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ccaf7a8e72 |
Give the terminal back the width and the keyboard the session shell took
Seven things reported from a day's use of v5b's session shell, and they are one commit because five of them are the same complaint from different angles: the window spends too much of itself on chrome describing the session, and the parts that are not chrome do not behave. ◆ THE HOST HEADER IS GONE, and that is a deliberate departure from the design. Terminal.dc.html and SFTP.dc.html both draw a 60-pixel row above the pane: the address on the left, a cross-surface button on the right. Both facts are worth having and the strip they sat in was not — the tab already names the host, and a full-width bar repeating it was the cheapest 60 pixels in the layout to give back. The address is now the first line of the sidebar and the button is stretched across the column under it, so nothing is lost and the pane is taller. Which word that button carries and which command it runs used to be handed in from the two usage sites in MainWindow.axaml, because the control was drawn twice. One sidebar cannot do that, so SessionCrossSurfaceLabel and OpenOtherSurfaceCommand resolve it in the shell — the same place SessionAddress already decides which surface's fact to read. The two directions underneath are untouched: SelectFilesHostAsync for a tab's host, OpenTerminalForFilesHostAsync for a fresh terminal at whatever SFTP has open. SessionHeader.axaml is deleted rather than left unused, and LayoutHarness stops subtracting its 60 pixels from every session screen's budget — the same treatment the retired window-wide tab strip got, and for the same reason: a constant for chrome nobody draws is a suite quietly measuring the wrong rectangle. ◆ AND THE SIDEBAR CLOSES, which the design has no state for at all. 300 pixels of an 1081-pixel minimum is a great deal to spend on a list that is often two rows long. The column now folds to a 34-pixel rail carrying the chevron that brings it back — a rail rather than nothing, because a panel that vanishes leaving no trace is one people report as lost rather than as closed. Both states live in the one control and swap on IsSessionSidebarOpen, so MainWindow's own "Auto" column takes whichever width is showing without knowing the state exists. Written through to ClientSettings.SessionSidebarOpen rather than held for the session. It is a decision about how much of the window a terminal gets, and one that had to be made again on every launch would not really be on offer. ---- THE FOUR SMALLER ONES ---- A SNIP LANDED IN A TERMINAL NOBODY COULD TYPE AT, and looked selected when it got there. Two causes with nothing in common. The click moved Win32 focus onto the sidebar row, and term.focus() in the page cannot take it back — only the host can, so the shell raises TerminalFocusRequested and the window answers with the same posted focus every other path here uses. The highlight was bash: xterm wraps a paste in bracketed-paste markers, readline marks what arrives inside them as an active region, and it stays in reverse video until the next keystroke. Right for a clipboard paste, wrong for a snippet picked off a sidebar. Single-line snips are typed rather than pasted now, which needs no markers; multi-line still pastes, because "runs three commands unasked" is the worse of the two failures and the markers are the whole of what prevents it. A BLACK BAR UNDER THE TERMINAL, on Windows. xterm.css paints its scrolling viewport #000 — its own comment explains why, and it is a macOS scrollbar concern. Everywhere else that black is covered by the rows, except along the bottom: the fit addon floors the row count, so the remainder below the last whole row is bare viewport, up to a line tall, against this page's #171a26. The light square at its right-hand end is where WebView2's classic scrollbar corner lands. The viewport is repainted in the page's own background, and the scrollbar with it — thin and in these colours rather than a grey Windows channel down the side of a near-black terminal, and kept rather than hidden, because a surface that scrolls with no sign that it does is worse than a quiet bar. THE PINS ROW DREW A TOFU BOX. U+E946 is not in the embedded Material Icons face at all — that file is the 2019 build and its cmap skips E944 and E946 — so the rail's Pins row and the hosts screen's own pin badge have both been drawing a missing-glyph rectangle since v5b picked the codepoint. push_pin in that vintage is U+F10D, verified against the file rather than against a codepoints table for a later release of the font. Every other icon codepoint in the repository was audited the same way; this was the only miss. THE KBD CHIP CUT THE CHORD IN HALF. 34 pixels is the design's width for a chip reading ⌘K, and this build substitutes CTRL K — six characters and a space, wider than 34 at 10.5 mono. MinWidth and padding instead, so the design's footprint survives for the day this face has a ⌘ to draw. ---- AND THE POPOVER UNDER THE USER CHIP ---- Reported as not matching the design, and it was not: Button.poprow set a corner radius and a padding and never touched the Background, so every row wore the Fluent theme's own #33FFFFFF button fill. Six raised pills stacked in a menu the design draws as six lines of text — and the hover rule underneath was already correct and simply invisible against a fill that never went away. Set on the ContentPresenter as well as on the Button, the same as Button.flat, because the theme binds its brush there and a Background set only on the control loses to it. The panel itself gets this window's own radius-12 card treatment through a FlyoutPresenter class rather than by widening the shared context-menu rule, and Vaults and Preferences stop being drawn one step dimmer than Settings and Logout, which read as two disabled entries in a menu of five live ones. ---- WHAT PROVES IT ---- Three tests in the layout suite, two of them checked against the defect they describe: the popover row's resting fill (fails with #33ffffff without the style), and the kbd chip against the natural width of its own text, measured on a detached copy because a TextBlock's DesiredSize is already clipped to what it was given and reports 34 inside a 34-pixel chip either way. SessionSidebarTests is new — the sidebar has never been laid out by a test, and it now holds a string of unbounded length beside a button that has to stay clickable. In the shell suite: the cross-surface row in both directions, the closed state surviving to disk, and the focus request being made when a snip lands and not made when it does not. |
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8a77b7ca68 |
Say how far a connection has got while it is still being made
The connecting card set its status string once, when the tab was created, and never touched it again. Every connection therefore looked identical from the outside: one three seconds into a key exchange, one waiting out a fifteen-second timeout against a machine that is asleep, and one that had hung all drew the same "connecting…". The card now draws the five steps of getting there, each lit at the moment the handshake reports reaching it, over an amber track that fills as they finish. ◆ NOTHING ON THE LIST IS INVENTED. Every row changes state because a layer below it said so, at the instant the thing it names actually began. That is the whole reason it is worth showing, and it is why most of this commit is plumbing rather than XAML: there was no progress reporting anywhere in the stack to hook a step list onto, and a card animating plausible progress would have been indistinguishable from one that had stopped receiving any. SshConnectionPhase names four phases and deliberately not more. SSH.NET runs the entire handshake inside one ConnectAsync and raises exactly one event from the middle of it — HostKeyReceived, once the key exchange has produced a key to show — so that event is the only interior moment there is to report. Everything before it is Reaching and everything after it is Authenticating. A fifth phase in that assembly would have to be a timer, so there is not one. OpeningShell is reported by TerminalWorkspace instead, because that is where it happens: the factory's work ends with an authenticated connection, and asking for a pseudo-terminal on one is a separate round trip. The SFTP path passes null — a second connection opened behind an already-open shell has nobody watching a step list for it. The card's fifth step, "Starting the terminal", is the renderer wait and lives in the shell rather than in the SSH assembly, which has never heard of a renderer. On the first connection after a cold start it is a real wait with a real failure mode of its own — a missing WebView2 runtime — so a list that began at "reaching the host" would leave the one wait most likely to hang unnamed. Amber for the step in flight, and that follows the palette's rule rather than bending it. Green is what is true and purple is what you can press; a step still happening is neither, and it is exactly the caveat-worth-reading that amber exists for. Steps behind it go green as they become true. Nothing animates, which is the argument TransfersScreen.axaml already makes for its own track, reaching a screen with far more reason to want a spinner: a spinner is furniture invented to fill a state nobody measured, and these states are measured, so the track fills to what has finished and then waits there. A refusal keeps the step it stopped on, in red, with the ones behind it still green. That is the half a progress bar could not do, and it is the difference between "that host is not there" and "that host is there and would not have me" — a question the reason sentence alone frequently does not settle. The strip's dot goes amber while a tab is connecting, on both heads. It was grey, and so is a tab whose shell has exited: the two states in that strip with the least in common, one worth waiting for and one over. PhoneShell's own comment already recorded half of this — the dot stopped being green before anything had answered — and this is the other half. Progress is raised inline rather than through System.Progress<T>, which captures whatever synchronisation context it was constructed on and posts to it. That reads like a convenience and is really a second place the marshalling decision gets made: silently, differently under a test with no context, and out of order with respect to the failure that follows a phase. The shell marshals once, in one handler, through a new optional post parameter on MainWindowViewModel — the same seam TransfersViewModel already uses, and for the reason its own remark gives. The three Dispatcher.UIThread.Post calls that predate it are the ones this suite's comments record as out of reach; they are left alone rather than swept in here. Both heads draw the list. They differ in one place: Phone.axaml's mono class sets a colour and a size along with the family, so the caption rule names its own family instead of composing the two and asking two rules for one Foreground. The desktop's mono sets the family alone, which is why ConnectingCard does compose them. Each head also gains SHOW LOGS beside the button that gives up — the step list is this attempt and the log is every other one, which is what a connection taking too long actually raises. Seven tests, and the two that matter most run against the container rather than a fake: a real handshake reports its phases in order, and a host-key refusal never claims to have authenticated. A fake asserting what it was written to assert would have established nothing about either. The rest cover the tab advancing while the connection is gated, the step a refusal stops on, and a phase reported after the user has given up on the tab. 1,861 tests, none failing. The Android head's layout is not verified by anything. It compiles, and compiled bindings mean every new binding path resolves, but that project is not in DodoSSH.slnx, there is no test project for it and no device here — so unlike the desktop card, whose shapes the layout harness measures, these rows have not been drawn. Vertical fit is reasoned, not observed. |
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9755b5f6ae |
Merge pull request 'Stop the SSH suite's server refusing connections at random' (#4) from claude/ssh-fixture-hup-race into main
Reviewed-on: #4 |
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e41eca01a8 |
Stop the SSH suite's server refusing connections at random
The suite fails intermittently with SshConnectionException "The connection was closed by the remote host", within tens of milliseconds, on whichever test happens to connect first. It has been seen in CI and reproduces locally. This raises sshd's MaxStartups in the fixture, which is the most likely cause and is worth doing regardless. sshd's compiled-in default is 10:30:100: past ten unauthenticated connections in flight it refuses new ones at random, thirty percent of the time, rising to always at a hundred. The image ships the line commented out, so that default was what ran. xUnit runs test classes in parallel and most of the classes here open a connection, so ten in flight is reachable during the opening seconds — and a refusal presents to the client exactly as observed, because a dropped connection and a server that never answered are indistinguishable from that end. ◆ IT IS A MITIGATION AND NOT A DEMONSTRATED CURE, AND THE COMMENT SAYS SO. The flake rate could not be measured. On the Windows development machine the identical unmodified suite ran 85/85 clean and, an hour later, failed 13 runs out of 15; a Linux container gave 30/30 clean and then failed on the first run of the next batch. Docker throughput on that host swings far enough to swamp the effect, so every before/after comparison taken there was noise — including two that were briefly believed. It is committed on the narrower argument that it is right either way. A connection throttle is hardening this suite has no interest in reproducing: it exists to test an SSH client, not to survive a rate limit, and a test server that drops connections at random is a bad test server whether or not it is the cause of this particular flake. The other candidate was the reload window — pkill returns when SIGHUP is delivered, not when sshd has finished closing its listeners and re-execing, so a connection immediately afterwards can be refused the same way. A wait that required three consecutive banner reads before returning was written and then removed: it could not be shown to change anything either, and a fixture carrying two unproven fixes for one symptom is worse than one, because the next person has to disprove both. Both candidates, and how to tell them apart with sshd's own log, are recorded in the fixture and in docs/platform-flags.md. |
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e96d01aab9 |
Let the host editor make the credential it is about to bind
The authentication picker has listed saved credentials since they existed, but making one meant leaving a half-typed host for the keychain screen and coming back to find it gone. On the phone it was worse than a detour: that head has no credential editor at all, so it could bind a host to a credential and never produce one. + NEW CREDENTIAL opens a card under the picker — name, optional username, password, notes — and ADD writes it and binds the host in one step. A button beside the picker rather than an entry inside it. Every row of that list is a binding a host can have, and "make a new one" is an action: as an entry it would sit in the box afterwards describing a state no host can be in, and cancelling the form would leave the picker showing it. It carries its own five fields rather than reusing the keychain editor's, and that is the load-bearing part. IsEditingCredential is what AVaultEditorIsInTheWay asks about, so sharing it would have made the whole Vault screen refuse to open an editor while this card sat open on the Hosts screen, with a status line naming a form the user cannot see on a screen they are not looking at — the exact failure that guard was split in two to end. A test pins it. It writes to the keychain immediately, unlike every other field in this editor, because a credential is a shared item with an id and a host can only name an id that exists. The consequence is honest rather than hidden and the hint says so: a credential added this way outlives a cancelled host edit. What was still being typed does not — every path that closes the host editor clears the form, and one of those fields is a password. The binding is written before the reload rather than after it. RefreshOpenEditors rebuilds this picker and then restores it from the editor's own selection, so setting it first is what survives the pass, and by the time it is read ReloadCredentialsAsync has put the matching entry in the list to land on. A name already taken is duplicated, not reused, and that is a deliberate parting from the new-tag box six lines further down which offers the existing tag instead. Two tags called "staging" are one intention spelled twice; two credentials called "root" are two different passwords, and quietly binding the host to whichever was there already would authenticate it as an account nobody chose. A duplicate label in the picker is the smaller problem. Into editingHostVaultId, so the credential lands wherever the host is being sealed and everybody who can read the host can read what it authenticates with. Stricter than the tag path — which files into the active vault and is recorded as a gap in docs/design-import-gaps.md — and it can be, because this picker lists credentials from every readable vault rather than one. Five flow tests cover the bind-through-reload path, the cancel semantics on both the saved credential and the abandoned one, the cross-screen guard, the duplicate name and the empty-password refusal. The layout test is separate and necessary: the card is collapsed until somebody presses the button, so a harness driven by the default state draws none of it, and TheHostDrawerFitsWithTheHostEditorOpen would have gone on passing over a card that blew the column. 1,854 tests, none failing. |
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0ffd259ccd |
Give the rest of the button shapes their content alignment too
The sweep the ghost/accent/danger fix implied: navuser, poprow, panechip, chiptoggle and choice each set VerticalContentAlignment now, because each set everything else about how its content sits and left that one to Avalonia's Stretch default. None of them was misbehaving. Every one is content-sized everywhere it is used today, so Stretch and Center agreed and this moves nothing — 113 buttons across 29 screens and cards measured byte-identical before and after, the strips that have no height of their own included. What it buys is that the day one of them is given a height, it is already right rather than quietly drawing its label in the top third. flat and cat are deliberately NOT swept in, and the reasoning that would sweep them is exactly the trap. flat carries the titlebar's search pill, a Border.searchpill with no height of its own that is meant to fill all 35 pixels of its button — the usage states HorizontalContentAlignment="Stretch" and takes the vertical default to match. cat carries the keychain rail's accent strip, a Border.rowmark whose style sets Width="2" and no height at all, "at full row height" by its own remark. Centring either from the style shrinks a pill and a strip that are correct today. AStretchingShapeStillFillsItsButton pins both, and fails when flat is centred. ButtonCaptionTests covers the five new shapes on the existing rule. Its stretch-fill assertion reads the content slot off the presenter rather than recomputing it from the button's Padding: the shapes differ in whether their presenter also draws a border, and a hand-rolled sum was two pixels out on Button.cat for that reason. |
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e936ab4646 |
Announce a session's end when it is actually over, and for closes too
The phone's notification kept saying '1 shell connected' after the shell was gone, and both close routes were at fault. A shell exiting on its own raised SessionEnded from inside its run's finally block — where the run task is by definition not yet complete, so the LiveSessionCount the keep-alive reads still counted the dead shell, and nothing fired later to correct it. A tab closed by hand announced nothing at all, by a recorded decision that assumed every subscriber was the closer; the keep-alive is not, and a close it never heard about left the notification claiming a shell over nothing. The end is now announced from a continuation after the run completes, and CloseSessionAsync announces after its own drain — every subscriber was already a reconcile-to-reality handler, so the echo the old remark feared costs nothing. Shutdown stays silent: it is dismantling the subscribers along with the sessions. |
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cc8bf37321 |
Merge branch 'claude/terminal-reattach'
Brings the Android keep-alive corrections and the terminal renderer reattach: the foreground service now actually comes up for shells and an idle Files session, survives refreshes from the background, and the terminal's data plane lets a reloaded WebView page take its socket back over instead of freezing every session behind a dead one. |
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4d1f07f253 |
Replay the live sessions to a renderer that just attached
Each live session gets its credit window reset — the unacknowledged bytes died with the old page, and their acknowledgement is never coming — and its SessionOpened frame again, flagged as a replay so the page can tell a reattach from a genuinely new session. A session whose shell already ended gets nothing: its scrollback lived only in the page that is gone, and a frame implying otherwise would lie. RendererReattached is the seam for what the workspace has no business owning: the font size and the selected tab live in the shell, which re-pushes them from its own subscription. |
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095774c498 |
Take a returning renderer's socket over instead of refusing it
One attach per process was WebView2's truth, not Android's: the phone kills the WebView's renderer independently of the app process, the page reloads, and its fresh socket was answered 409 by a guard that never reset — with no way back short of restarting the app. Only our own page knows the token, so a second valid upgrade is that page returning; it now displaces the old socket, which may never notice it is dead on its own, since a killed renderer sends no FIN. A send into the dead socket also no longer escapes as a fault. It used to unwind the pump's flush loop, after which nothing drained the credit window and the still-live shell froze behind it for good — including the BCL quirk where such a send surfaces as an OperationCanceledException nobody's token asked for. |
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810bc48d3f |
Tell the keep-alive wire when the Files session opens and closes
HasLiveFileSession answers the phone's foreground-service question — is there a connection here that dying with the process would sever — and a bucket answers no, because HTTP holds nothing open. ActivityChanged now also fires at the end of MarkHostConnected and CloseSessionAsync, where both facts it reads are finally true together. Also makes the bucket pins test actually open a bucket: it never set Remote, so CONNECT dialled the auto-selected host, and its assertions passed only because that host had no pins either. |
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671611a9a0 | Merge branch 'claude/phone-pins' | ||
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21cf77f64a |
Centre a button caption in the button, not just the button in its parent
App.axaml's Button.ghost, Button.accent, Button.danger rule set VerticalAlignment and never VerticalContentAlignment. The first places the button in its parent; the second places the caption in the button, and its default is Stretch — so on any of these given a fixed Height the content presenter stretched the caption TextBlock to the whole content box, and a TextBlock draws its line at the top of whatever it is given. Measured on the hosts toolbar, whose three buttons are 40 pixels: nine above the ink and twenty below it. Every box was the height it declared, which is why this read as one of them being the wrong height — nothing was mis-sized, the labels sat in the top third. Center rather than a hand-tuned Padding, because the gap is the difference between the line box and the content box and moves with the font size: these carry 11.5 by default and the primary action overrides it to 13.5. It is the three shapes that were missed rather than a new idiom — navseg, sesstab, headerghost, sidebarrow, fieldrow and paneicon all state it already, as does every one of the phone head's own button classes. 134 buttons carry these three classes; the ones that show it are those with an explicit Height, which is both toolbars, the drawer's Save/Cancel pair, and the import screen. A button sized to its own caption was already right and is untouched. HorizontalContentAlignment is deliberately left alone: it is Stretch too and invisible on a self-sized button, and the flyout rows that are stretched wide ask for Left themselves. ButtonCaptionTests measures a bare Button, since Application.Styles is global and a screen-level test would pin one toolbar and leave the rest to the same defect. It measures the laid-out line rather than the TextBlock's arranged bounds, and that distinction is the test: under Stretch those bounds fill the content box and so are symmetrical whether or not the ink in them is. The first draft asserted on them and passed against the defect; the calibration test caught it, and against the old markup all three shapes now fail naming their own gap. |
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dbf6ce1bcf |
Give the phone its pins: an editor section and chips on Files
The data was never the gap — HostSecret.PinnedPaths syncs and merges on both heads, and the desktop's drawer has staged it since v5 — the phone just had nowhere to add, remove or use a pin. Now it has both halves. The host editor page gains a QUICK ACCESS section over the same shared staging the drawer binds (EditorPinnedPaths, AddEditorPin, RemoveEditorPin), with the remove target at this head's 44dp touch floor rather than the desktop's 22-pixel close box, and no folder glyph because this head embeds no icon font for one. The page also gains a Status line of its own: the add command's five refusals speak through Status, and this page covers the screen that normally draws it — a refusal nothing shows is no refusal at all. The Files screen draws the connected host's pins as chips between the breadcrumb and the listing, each running GoRemoteCommand exactly as a crumb does. They are captured at connect, like ConnectedTo and the session facts before them; a bucket gets none, having no HostSecret to pin anything on. Covered headlessly in ShellFlowTests — connect populates, disconnect clears, a bucket stays empty — and by manual checks 8.18 and 8.19, whose phase preamble also stops claiming thirteen checks when it lists twenty-one. |
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242280ce6b |
Name a root chip after the root, not with its whole path
The chip derivation was TrimEnd(separator), which is a name only for the Windows drives it was written against: on Unix it made the / chip an empty pill and the home chip the entire home path, drawn at full width in a header column nothing bounds. A home directory deep enough — CI's per-job HOME is forty-six characters — had that one chip walk the header's own buttons out of the window at the session shell's 472-pixel budget, which is the half of the runner's red suite the star-column fix before this one did not reach. A chip says C:, /, ~, or a mount's last segment now; the full path stays on its command parameter, where length costs nothing. RootChipNameTests pins the derivation with fixed strings, so it no longer takes a machine with a deep profile path to ask the question. |
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de0b5f12ae |
Let the pane headers' paths actually trim
TextTrimming only acts when measure hands the block a finite width, and a horizontal StackPanel never does — it measures every child at infinity and an Auto grid column passes the full answer on. So both SFTP pane headers grew with their path, and a directory deep enough pushed the header's own icon buttons past the window's edge at the session shell's 472-pixel budget. The layout suite has said so on every CI run since v5b landed, and nowhere else: the runner's per-job HOME is a 46-character path, which is what the local pane opens on, and every developer machine's short profile path left the same test green. The path sits alone in the star column now — bounded width, working ellipsis — and the narrowest-budget test pins both panes to sixty-character paths so the question is asked on every machine alike; against the old markup that test fails on Windows too. |
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009b35e069 |
Cover the mixed-keychain regroup refusal headlessly
The two-keychain branch of VaultViewModel.RegroupChosenHosts had no test: 7.6a's manual walk was the only thing asserting that a mixed set gets the sentence instead of the picker. A ShellFlowTests case now ticks a host in each of two vaults, reads the refusal off the status line, and shows the same command opening the picker once the set is one keychain's again. Check 7.6a cites the test and keeps only the popup wiring for the eye. |
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9d5ff9f23a |
Draw what authenticated, and over what, on the session status bar
The v5b design's own row: the negotiated cipher, then the host key's algorithm and the name of the key or credential that authenticated, as one mono run beside CONNECTED — on both surfaces, off MainWindowViewModel's surface-aware SessionCipher and SessionIdentityText, the same shape SessionAddress set. The identity's name comes out of TryBuildAuthentication, the one resolution point that always had it in scope and always threw it away; it rides HostAuthentication to the tab and to the SFTP connect alike. Three deviations, recorded in the gaps doc: the algorithm prints as negotiated rather than shortened, the run is plain text because no pin-details modal exists for an open session, and a typed password shows the algorithm alone — there is no item behind the dot. A dead terminal tab keeps its facts for the scrollback still on screen; an SFTP disconnect, with no scrollback, clears them. |
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8209f15741 |
Let a session's transport say what it negotiated
ISshConnection and ISftpSession both carry Cipher now — the server-to-client algorithm off SSH.NET's own ConnectionInfo, captured once because a rekey is not an event that library raises — and TerminalWorkspace.GetSessionFacts hands that plus the host key's algorithm back per session, without ever handing over the connection itself. Nothing reads either yet; the status bar that will is the next commit. |
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c8507b44fe | Give the application a settings area built from what really exists | ||
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43c939b697 | Give the window its v5b chrome and each session surface its own shell | ||
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281e828e25 | Sweep out the group-card navigation nothing reaches any more | ||
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2ba7c14e35 | Restyle the drawer, pin folders on a host, and say when it was last connected | ||
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c3ef4bd8b4 | Flatten the hosts screen into one board of sections | ||
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bea0279937 | Repaint both heads in the v5 palette and embed its three fonts | ||
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49645db680 | Let a host carry pinned folders, merged path by path | ||
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82966af37b |
Let a connection be reached through a proxy on this machine's loopback
Step 1 of docs/reaching-a-host-you-cannot-dial.md, and it is not the step that document said it was. SshConnectionRequest carries an optional SshLoopbackProxy and BuildConnectionInfo hands SSH.NET its proxy ConnectionInfo when there is one. Nothing passes one yet: the callers are jump hosts and the relay, which are steps 2 and 3. ◆ THE BRIDGE WAS THE WRONG FIRST STEP, AND BUILDING IT WOULD HAVE BEEN THE MISTAKE THIS DOCUMENT IS ABOUT. ADR 0004 says the relay's loopback bridge "also provides ProxyJump via a SOCKS5 dynamic forward — one mechanism, two features", and the plan took that to mean the bridge was the shared foundation. It is not: ForwardedPortDynamic *is* the listener for a jump host — SSH.NET accepts on it, speaks SOCKS5 on it and tunnels through the bastion — so nothing is left for a bridge of ours to do on that path. The relay is the case with no SshClient to hang a forward off, so it is the bridge's only consumer, and the bridge belongs in the commit that uses it. What the two actually share is one level down and a tenth of the size: being told to reach a target through a loopback proxy while staying about the target. That is what this is. Three properties, one test each. A port and nothing else, so a proxy anywhere but loopback cannot be expressed. The failure that shape rules out is an open SOCKS proxy on the user's network for the life of a shell, which nothing would report — so it is made unrepresentable rather than validated, on the same grounds AuthenticationChoice carries a kind. SOCKS5 rather than a dumb pipe, which is what keeps host key pinning honest. The target's own name and port stay in the request, travel to the proxy in the CONNECT, and are what the gate pins — so a machine reached through a bastion is pinned under its own name instead of under 127.0.0.1 on whatever ephemeral port that day's forward got, which is not an identity at all. A pipe would have meant handing SSH.NET a stand-in and remembering everywhere else that it was one. And a proxy that is not listening fails as a connection error rather than as an unknown host key. The gate turns "no host key seen" into a fingerprint prompt, and a connection that never reached a server has seen none either; the prompt would offer to fix the wrong thing, with no fingerprint to show. TWO THINGS THE TESTS MEASURED RATHER THAN ASSUMED, both found by the first run failing. The target is resolved at the *bastion*, not here — a SOCKS CONNECT names it and the far end looks it up. So the test asks for localhost:2222, the address inside the container, and the published port this host would use means nothing there. That is not a quirk of the fixture; it is what ProxyJump means, and it is why an ssh_config writes the target's internal address beside its jump host. Getting it wrong is a SOCKS "general failure" that names neither end. And the test server refuses forwarding. linuxserver/openssh-server ships AllowTcpForwarding no, which a dynamic forward does not notice — opening one asks the server nothing — so every connection through it is refused at channel-open and reported as the same general failure. The fixture patches it and HUPs sshd. There are two sshd_config files in that image and the running server uses /config/sshd/sshd_config; the first attempt patched /etc/ssh/sshd_config, which is the one a search finds first, changed the text and nothing else, and left the failure exactly where it was. VERIFIED. Build clean with no new warnings, 85 tests in Client.Ssh.Tests against the real sshd, and the solution builds. The proxy test was seen to fail — proxy.Port + 1 in BuildConnectionInfo — and seen green again. An earlier mutation attempt did not compile, and the log said 85 passing because the run never started and the previous log was still on disk; the second attempt deletes the log first, which is worth copying whenever a mutation "passes". dotnet format reports one pre-existing IDE1006 in DodoSSH.Api/Features/Events/EventsEndpoint.cs, in a project nothing here touches. Left alone. |