Commit Graph
100 Commits
Author SHA1 Message Date
DanSandClaude Opus 4.8 3fd52fbdaf perf(chat): ingest a message batch in one transaction
Ingesting a scan's worth of chat messages persisted each new message
with its own append() call, so a batch of fresh messages opened and
committed one SQLite transaction per row.

- A new appendBatch persists many messages in a single transaction,
  using the same INSERT OR IGNORE dedup key as append() and preserving
  input order so load()'s rowid ordering is unchanged.
- Every message is serialized and encrypted before the transaction
  opens, so a message with a non-UTF-8 body is skipped on its own
  without leaving a transaction open; the valid siblings still persist.
- Ingest collects the newly stored messages and writes them once after
  the loop instead of per message. It is inert (returns 0) while locked
  or on empty input.

Tests cover a batch insert, dedup on re-insert, empty input, bad-UTF-8
isolation with a valid sibling and a following append(), insert order,
and the locked no-op.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 22:03:00 -05:00
DanSandClaude Opus 4.8 1416654385 perf(tx-cache): skip Argon2id for unencrypted wallets
Opening the transaction-history cache always derived its encryption key
with Argon2id, even for an unencrypted wallet. For those wallets the
passphrase is just a value derivable from the database itself, so the
~50-100 ms Argon2id stall bought no additional secrecy and ran on the
UI thread at open.

- Unencrypted wallets now derive the cache key with a cheap,
  domain-separated BLAKE2b KDF over the wallet identity, keyed by the
  per-wallet salt. The secret is derivable from the DB, so this is
  security-equivalent for the unencrypted case and avoids the stall.
- Passphrase-encrypted wallets are unchanged: they keep the Argon2id
  key derivation. The two paths use separate domain labels, so the
  fast-path key and the Argon2id key never collide for the same DB and
  salt; a cache written under one cannot be read under the other.

Tests cover the fast-path round-trip and reopen, and assert that an
Argon2id unlock of the same DB produces a different key and fails to
read the fast-path snapshot.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 22:03:00 -05:00
DanSandClaude Opus 4.8 3554ba1e2d perf(noise): tile the resident noise texture on GL instead of a copy
Drawing the tiled background noise built a viewport-sized pre-tiled
texture and re-created it whenever the viewport changed, copying the
256x256 noise tile across the whole screen in memory.

- On GL the draw now samples the resident 256x256 tile directly with
  GL_REPEAT, computing UVs from the screen rect over the tile size with
  the phase anchored at the viewport origin. The result is pixel-
  identical to the old pre-tiled texture (same generator, same origin)
  with no per-viewport copy.
- DX11 keeps the pre-tiled viewport-sized texture, since its sampler is
  CLAMP and cannot repeat.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 22:03:00 -05:00
DanSandClaude Opus 4.8 aa486266c6 perf(texture): cap and downscale theme images on load
Theme images were decoded straight to RGBA at their full source size
and uploaded to a GPU texture as-is. A large or over-sized image wasted
VRAM and could exceed the GL maximum texture size, and each code path
also hand-managed the decoded pixel buffer with its own free calls.

- Loading from file and from memory now goes through the shared
  size-aware decoder with a 2048-pixel cap on the long side. An image
  larger than that is downscaled with its aspect ratio kept; an image
  whose area is absurd is rejected; a small image is left untouched.
- The decoder owns the pixel buffer for the life of the upload, so the
  manual free calls are gone.

Tests cover downscaling a wide image to a 2048 long side with the aspect
kept, rejecting an over-area image, and leaving an under-cap image as-is,
plus the fit-dims math at the theme-art cap.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 22:03:00 -05:00
DanSandClaude Opus 4.8 8c5bd485dd fix(lite): probe servers without joining the thread on the UI thread
Adding a lite server from the network tab restarted the background
server probe immediately. Starting a probe while one is still running
joins the previous worker thread, and that join happened on the UI
thread, so the frame could stall until the outstanding probe finished.

- Adding a server now sets a dirty flag instead of restarting the probe
  inline; the next frame starts a fresh probe once the current pass has
  finished, so the UI thread never blocks on a join.
- The probe's libcurl transfers honor the cancel flag through a progress
  callback and abort cleanly, so a probe in flight stops promptly.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 22:03:00 -05:00
DanSandClaude Opus 4.8 8168e26d93 perf(updater): read the downloaded archive in one bounded allocation
Before verifying a downloaded archive, both updaters slurped it into a
string with an istreambuf_iterator, which grows the buffer repeatedly
and reallocates as it reads a multi-megabyte file. It also placed no
upper bound on the size it would read into memory.

- A shared readFileExact helper sizes the file first and reads it in a
  single allocation, failing closed if the file is missing, empty,
  larger than a caller-supplied cap, or comes up short. A truncated read
  can never reach the SHA-256 / signature verifier.
- Both updaters use it with the existing max-archive cap.

Tests cover a good read, a read exactly at the cap, over the cap, an
empty file, and a missing file.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 22:03:00 -05:00
DanSandClaude Opus 4.8 e685d425ed fix(updater): cancel the release-metadata request on dialog close
The daemon and miner updaters fetch release metadata with a blocking
HTTP GET that ignored the updater's cancel flag. Closing the dialog set
the flag, but an in-flight metadata request kept running to completion
on the worker thread, so the dialog could not tear down promptly on a
slow or stalled connection.

- The metadata GET now passes the updater's cancel flag through to the
  HTTP helper, so closing the dialog aborts the request in progress.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 22:02:59 -05:00
DanSandClaude Opus 4.8 2396ed33db fix(settings): tolerate wrongly-typed values instead of quarantining
Several settings were read with json's value()/get<T>() helpers that
assume the stored type. A hand-edited settings file, or one re-saved
after an inf/NaN float was written back as JSON null, could therefore
hold a value of the wrong type and throw during load. The whole load is
wrapped so a throw quarantines the entire settings file to a
.corrupt- copy, meaning one bad field reset every unrelated setting.

- ui_opacity is accepted only when it is actually a number, and it is
  clamped to the same 0.3..1.0 range the setter enforces; the legacy
  reduced_transparency migration likewise runs only when that key is a
  boolean.
- A non-string name in a blocked chat conversation, and a non-string
  scope in a portfolio entry, now fall back to an empty string instead
  of throwing.

The file loads with the offending field defaulted, and the rest of the
settings survive.

Tests cover ui_opacity as a string/null/int/float/bool, a non-string
blocked-conversation name and portfolio scope, and the legacy
reduced_transparency migration, asserting no quarantine file is written.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 22:02:59 -05:00
DanSandClaude Opus 4.8 f47528de53 fix(startup): move the single-instance lock to a private per-user file
The single-instance lock lived in /tmp, which is world-writable. Creating
it with mode 0666 there gets masked to 0644, so a second local user
cannot open it O_RDWR and is wrongly blocked from running the wallet at
all. A world-writable directory also lets another user pre-create or
symlink the lock path.

- The lock now lives in a per-user directory: $XDG_RUNTIME_DIR when it is
  an absolute directory the user owns, otherwise the per-user, per-variant
  config directory that startup has already created. Never /tmp.
- It is created mode 0600 with O_NOFOLLOW, and after opening we fstat it
  and refuse anything that is not a regular file we own, rejecting a
  planted symlink or a foreign-owned file.
- The lock file is no longer unlinked on release; flock drops on close,
  and leaving the file in place avoids an unlink/relock race (a stale
  file is harmless).

Tests cover acquiring and conflicting on the lock, the 0600 mode, that
release leaves the file in place, and that a symlinked lock path is
refused.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 20:57:21 -05:00
DanSandClaude Opus 4.8 bf5cb39566 fix(bootstrap): restrict download redirects to https
Both the HEAD size probe and the archive download followed redirects
with no restriction on where they could go. A redirect could therefore
downgrade the transfer to plain http or point at a file:// URL, defeating
the TLS verification the initial https request was relying on.

- Redirects on both requests are now limited to https, so a redirect can
  no longer leave TLS or reach a local path.
- The limit is set with the string-based curl option where available and
  the protocol-mask option on older libcurl.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 20:57:21 -05:00
DanSandClaude Opus 4.8 667c89ba51 fix(bootstrap): resume downloads without discarding a valid archive
Resuming a partial download leaned entirely on the remote size from a
HEAD request. When that size could not be determined the code played it
safe by deleting the partial file and starting over, so a flaky HEAD (or
an offline mirror) threw away gigabytes that were fine to resume. It also
could not tell a real size from an error page, and if the server answered
a ranged request with the whole file (200, not 206) libcurl could append
it to the partial and silently corrupt the archive.

- The HEAD now returns transport status, HTTP code, and size together,
  and a size counts as authoritative only on a 2xx reply with a positive
  Content-Length.
- A pure helper decides what to do from the existing bytes and that
  authoritative flag: start fresh, truncate a stale oversized file, reuse
  a complete one, or resume with a ranged GET. When the size is not
  authoritative the partial is kept and a ranged GET is attempted rather
  than discarded.
- A ranged request that comes back as 200 instead of 206 now restarts
  cleanly from scratch instead of appending to the partial.
- The free-space pre-check runs only when the size is authoritative, and
  a failed download reports how many bytes were kept for the retry.

Tests cover the resume-decision helper across the fresh, stale, complete,
resuming, and non-authoritative cases.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 20:57:21 -05:00
DanSandClaude Opus 4.8 4d9d528566 fix(bootstrap): keep the archive unless a checksum truly mismatches
Any verification failure deleted the downloaded archive and forced a
full multi-GB re-download on the next attempt. But most failures are not
a corrupt archive: a missing or unreadable checksum sidecar, or a fetch
blip while pulling the checksum, would throw away a perfectly good file.
On top of that the checksum parser took the first token of whatever came
back, so an HTTP error page could be mistaken for a digest.

- The archive is now removed only on a genuine digest mismatch. A
  missing sidecar, an unusable one, or a transient fetch error keeps the
  file so the next attempt can reuse or resume it; the no-checksum case
  still fails closed and keeps the archive.
- The checksum parser now accepts a token only if it is exactly the
  expected length and all hex, lowercasing it; anything else (an error
  page, a truncated or wrong-width digest) is rejected.
- The small-file fetch moved onto the shared capped HTTP helper, and MD5
  is consulted only as a fallback when no SHA-256 is published.

Tests cover the checksum parser across good, wrong-length, non-hex, and
error-page inputs.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 20:57:21 -05:00
DanSandClaude Opus 4.8 b3a1a9e654 fix(bootstrap): report verify progress correctly past 2 GiB
The checksum and MD5 passes measured the file for their progress bar
with fseek/ftell. On Windows a long is 32-bit, so ftell overflows on
any archive larger than 2 GiB and hands back a wrong (often negative)
size, which makes the verify progress percentage meaningless on exactly
the multi-gigabyte downloads this code exists for.

- Both passes now take the size from std::filesystem::file_size, which
  is 64-bit on every platform, through a small helper that returns 0 if
  the size can't be read.
- No seek is performed just to size the file.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 20:57:21 -05:00
DanSandClaude Opus 4.8 e1003cba43 perf(migrate): gate the seed-migration confirming balance scan
While the seed migration sits on the Confirming gate it polled the
sweep's confirmations and a full wallet balance together on every pass.
That balance call is the expensive one, and it only matters once the
sweep is mined and we do not yet have a post-mine figure, yet it ran
every poll even mid-sync when it cannot move the gate.

- The confirmation count is still read on every poll.
- The balance scan now runs only when it can actually advance the adopt
  gate: the sweep is mined, no post-mine balance has been recorded yet,
  and no sync is in progress. The manual Refresh button forces it
  regardless.
- The decision lives in a small pure helper, and the poller snapshots
  the main-thread state it needs rather than reading members off the
  worker thread.
- The Confirming screen now claims a leftover remainder (and offers the
  re-sweep button) only once the balance has actually been measured; while
  it is still unknown it keeps waiting instead of prompting on a sentinel.

Tests cover the gate helper across the forced, syncing, and mined cases.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 19:24:12 -05:00
DanSandClaude Opus 4.8 f1b0ae5ce7 fix(net): cap market and bootstrap HTTP response bodies
Several HTTP fetches read a remote body into memory without a tight
bound. The price and exchange-ticker calls shared one large 16 MiB
metadata cap, and the bootstrap checksum download had no size limit at
all, so a hostile or MITM'd server streaming an unbounded (and
Content-Length-free) response could grow memory far past anything these
endpoints legitimately return.

- The HTTP GET helper now takes a per-call byte cap and redirect limit.
  The write callback refuses bytes past the cap, which aborts the
  transfer, and the same value is set as curl's max file size.
- The price call is capped at 256 KiB and the ticker list at 2 MiB,
  each sized to its real payload rather than the shared default.
- The bootstrap checksum fetch caps its body at 64 KiB in both the
  write callback and curl's max file size.

Tests cover the sink accept/abort boundary.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 19:24:12 -05:00
DanSandClaude Opus 4.8 edbb98d9ec perf(chat): single-pass watermark and move-append on chat load
Loading chat history did more work than it needed to. Seeding the unread
watermark walked every conversation and copied each one's full message
list out of the store just to read the last timestamp, and the database
reload copied every message into the store one at a time with no
reservation.

- The watermark now comes from one pass over the stored messages that
  returns the latest timestamp per conversation, with no per-
  conversation copy or sort.
- The store gained a move-append and a reserve, so the reload pre-sizes
  its vector and dedup set once and moves each row in instead of copying
  it. The dedup key is computed before the move.

Behaviour is unchanged: the watermark values and the blocked-conversation
filter on reload are the same as before.

Tests cover the per-conversation latest-timestamp pass and move-append.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 19:24:12 -05:00
DanSandClaude Opus 4.8 2a535c844d fix(security): overwrite key/PIN files with fsync before deleting them
Two secure-delete paths overwrote a sensitive file and then unlinked it,
but neither reliably forced the overwrite to stable storage. The
plaintext key export used a buffered stream with only a flush, and the
PIN vault removal opened a second descriptor to fsync only on non-
Windows. On a crash, or on Windows, the zeroing write could stay in the
OS cache and the original bytes could survive on disk.

Both now go through one shared best-effort secure-delete helper:

- It overwrites the file in place in chunks, never truncating first, so
  the original blocks are the ones rewritten.
- It flushes the data to the device before unlinking (full fsync on
  macOS, write-through on Windows), then removes the file.
- It is safe on a missing file and reports whether the file is gone.

This is still best-effort: SSD wear-levelling and copy-on-write or
journaling filesystems may retain copies.

Tests exercise the overwrite-and-remove helper.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 19:24:12 -05:00
DanSandClaude Opus 4.8 63a422a615 fix(security): only a real wrong passphrase counts toward unlock lockout
A failed wallet unlock was always treated as a wrong guess: the lockout
counter was bumped and the back-off curve armed no matter why the RPC
failed. A busy or warming-up node, a transport timeout, or a wallet that
is not actually encrypted would all eat an attempt and could push a user
into a lockout without a single mistyped passphrase.

The failed call is now classified before it is acted on:

- Only the daemon's "passphrase incorrect" error counts as a wrong
  guess and advances the lockout.
- A warming-up or unreachable node, a reply timeout, or a full queue is
  reported as a transient busy-node condition with no attempt charged.
- A "wallet is not encrypted" reply refreshes the local encryption state
  instead of penalising the user.
- Any unknown error surfaces its message without touching the counter.

The PIN path got the same treatment: when the vault decrypts correctly
but the unlock RPC then fails for a non-credential reason, the attempt
is no longer counted.

Tests cover the classification of each failure kind.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 19:24:12 -05:00
DanSandClaude Opus 4.8 100d76b88f fix(input): handle the first Alt+wheel while idle in the wait path
Alt + mouse wheel adjusts the font scale, but it was only handled in the
poll loop that runs after the app wakes. When the app was idle it blocks
in a single timed wait, and that first wheel event went straight to
ImGui, scrolling the window instead of changing the scale until a later
event arrived.

- The Alt+wheel handling is pulled into a shared helper used by both the
  idle wait path and the poll loop, so the first event while idle is
  consumed and triggers a redraw.
- Behaviour is otherwise unchanged: the visual scale updates smoothly and
  the font atlas is rebuilt once scrolling stops.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 18:16:50 -05:00
DanSandClaude Opus 4.8 fa1ba97286 perf(win): skip DWM blur/acrylic when the window starts opaque
The window always asked DWM for a full-window blur region and, on
Windows 11, an acrylic backdrop. When the user runs with an opaque
window (low-spec mode or full opacity) that desktop blur is never seen
but DWM still composites it every frame.

- An early read of the saved settings decides whether the window starts
  opaque before the backdrop is configured.
- When it does, the full-window blur region is left as SDL's zero-area
  default and the backdrop type is set to none instead of acrylic.

Windows-only.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 18:16:50 -05:00
DanSandClaude Opus 4.8 53da160546 fix(window): defer caption-button window ops out of the ImGui frame
The custom minimize / maximize / restore buttons are drawn from inside
app.render(), while an ImGui frame is open. Calling SDL to change the
window state there pushes resize events synchronously, which re-enters
the resize watcher and can nest a new frame inside the open one.

- A click now records the requested op instead of acting on it, and the
  window state change is applied once the frame has closed, after the
  pacing block so the follow-up redraw is not dropped.

Windows-only; it rides the borderless caption controls.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 18:16:50 -05:00
DanSandClaude Opus 4.8 49240facff perf(resize): dedupe the live-resize watcher, early-out DX11 resize
The live-resize event watcher redrew for every resize event, and each
resize tore down and recreated the DX11 render target even when the
pixel size had not actually changed. A single drag fires both a RESIZED
and a PIXEL_SIZE_CHANGED event reporting the same final size, so the
work ran twice.

- The watcher keys off the real pixel size and returns early when it has
  not moved since the last pass, collapsing the duplicate event pair into
  one redraw. It also bails out when called from inside an open ImGui
  frame, which the caption buttons can trigger.
- The DX11 resize now checks the swap chain's current dimensions up
  front and does nothing when the size already matches and the target is
  live, skipping the destroy/recreate churn.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 18:16:50 -05:00
DanSandClaude Opus 4.8 13059412ce fix(log): share one handle between stdout and stderr on Windows
On Windows stdout and stderr were reopened onto the same log path with
two separate freopen() calls. Each stream then had its own file handle
and its own write offset into the one file, so the two writers
overwrote each other and interleaved into a garbled log.

- stdout is reopened (truncating the file per run), stderr is pointed at
  the same underlying handle via _dup2 so both share one offset and
  append in order.
- stderr is first given a valid descriptor, since a GUI-subsystem
  process may start with no fd 2, and is left unbuffered so crash
  diagnostics are not lost.

Also corrects a stale comment that named the old log file.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 18:16:50 -05:00
DanSandClaude Opus 4.8 45d8bdccf0 perf(startup): drop the unused SDL gamepad subsystem and nav flag
Startup initialised SDL's gamepad subsystem and turned on ImGui gamepad
navigation, but the wallet is never driven by a gamepad. Initialising
the subsystem enumerates attached controllers and loads the mapping
database for nothing.

- SDL now starts with the video subsystem only.
- ImGui keeps keyboard navigation; the gamepad navigation flag is
  removed from both the DX11 and the OpenGL setup paths.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 18:16:50 -05:00
DanSandClaude Opus 4.8 a24ffea86e perf(startup): let Windows relax the system timer resolution
On Windows SDL3 raises the global timer resolution with
timeBeginPeriod(1) and holds it for the whole process lifetime, which
keeps the system on a 1 ms tick and costs power for no benefit here.

- A startup hint now asks SDL to leave the system timer alone. Nothing
  in the app needs sub-15 ms waits: vsync paces drawing, the idle wait
  is 200 ms, and background sleeps are 50 ms or longer.

The hint is Windows-only in effect and is ignored elsewhere; an
environment override that turns it off is harmless.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 18:16:50 -05:00
DanSandClaude Opus 4.8 5d9bd1688c fix(security): clear the secret clipboard on a monotonic clock
A secret copied to the clipboard auto-clears after a timeout, but the
deadline was stored as an ImGui::GetTime() value. That clock only
advances while frames are being drawn, so while the app idled (no
redraws) it effectively stood still and the pending clear could be put
off well past the intended window.

- The clear deadline is now a steady_clock time_point, which keeps
  counting whether or not the UI is rendering.
- The pump uses the armed hash as its "something is pending" flag rather
  than a sentinel deadline value, and compares the real wall time.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 18:16:50 -05:00
DanSandClaude Opus 4.8 f3f85d602d fix(mining): stamp hashrate history and label the chart by real time
The hashrate sparkline guessed the age of its oldest sample from the
sample count, labelling the left edge "5m ago", "1m ago" or "start"
regardless of how fast samples actually arrived. Solo and pool samples
come in at different intervals, and a slow or stalled poll made those
labels wrong.

- Each hashrate sample now carries a wall-clock timestamp, kept in
  lockstep with the value as the history fills and rolls over, for both
  the solo and pool histories.
- The chart's left-edge label is derived from the oldest sample's actual
  timestamp, falling back to "start" only when no stamp is available.

Tests: a mining refresh records a timestamp per sample, and the
timestamp history stays the same length as the value history once the
history is capped.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 17:42:30 -05:00
DanSandClaude Opus 4.8 2c9e99c022 perf(daemon): memoize the external debug.log miss
When following the debug.log of a node this session did not launch, every
poll re-read the last 2 MB of the file and re-scanned it for the process
banner. If that node logs to its console instead, the banner is never
there, so the full re-scan repeated on every poll for the life of the
process.

- A miss is now remembered by pid and file size: if nothing has changed
  since the last miss, or the file is growing but the backoff has not
  elapsed, the scan is skipped.
- The retry schedule re-scans quickly during a fresh-node grace window
  (the banner flushes a beat after the pid appears) and then backs off
  from 4 s, doubling to a 60 s cap. The memo is cleared on a successful
  tie and when the followed process goes away.

Tests: the retry delay is fast within the grace window and then steps
4, 8, 16 s up to the 60 s cap.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 17:42:30 -05:00
DanSandClaude Opus 4.8 1cd4ea4026 fix(security): throttle and wipe the import dialog clipboard preview
Hovering the Paste button in the import-key dialog read the OS clipboard
every frame to draw a ghost preview of the key, and the trimmed
plaintext was rebuilt each frame and never wiped. SDL's clipboard read
is a synchronous round-trip, and the pasted value is a secret private or
viewing key.

- The clipboard is now read only on hover entry and then at most twice a
  second, and the classified preview is cached rather than recomputed
  every frame.
- The cached preview is a dedicated secret buffer: it is wiped the moment
  it stops being shown, wiped on secret wipe, and the transient trimmed
  copy is zeroed right after it is classified.
- Trimming moves to a shared clipboard helper shared with the paste path.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 17:42:30 -05:00
DanSandClaude Opus 4.8 d601f786e2 perf(lite): cache walletExists() to stop per-frame FFI
While no lite wallet is open the startup auto-open check called
walletExists() every frame. That call crosses into the backend and
touches the filesystem (and prints), so it ran a disk stat on every
frame the app idled at the first-run prompt.

- walletExists() now caches its result for about two seconds on the main
  thread, and the cache is invalidated whenever an open or lifecycle
  result is consumed, since the wallet file may have changed.
- The auto-open condition is reordered so the cheap timer checks gate the
  call, and the click-time overwrite decision uses a new
  walletExistsFresh() that bypasses the cache.

Tests: the cache returns the first queried value within the TTL and the
fresh read re-queries the backend and refreshes the cache.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 17:42:30 -05:00
DanSandClaude Opus 4.8 29c1674094 fix(mining): honour the pool Refresh button in Manual mode
The pool auto-balance step returned early whenever the pool selector was
in Manual mode, so a pending manual Refresh of the pool display stats was
dropped and the button did nothing unless Auto-balance was active.

- A pending refresh is now serviced in Manual mode too, re-querying the
  pool display stats without auto-switching the pool or restarting xmrig.
- Auto-balance behaviour is unchanged; the manual path is display-only,
  so it runs with no benchmark gate.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 17:42:30 -05:00
DanSandClaude Opus 4.8 95605dd7e9 fix(ui): stop global shortcuts auto-repeating; skip invalid skins
The global keyboard shortcuts tested keys without disabling key-repeat,
so holding one down fired it every frame: the theme cycle, balance and
market layout cycles, the effects and background toggles, the settings
and sidebar-collapse keys all re-triggered on a held key. Cycling themes
also stepped onto skins that had failed to load and wrote the broken
pick into settings.

- Every one-shot shortcut now checks for a fresh key press only, so a
  held key fires once.
- Theme cycling skips over invalid skins and only applies, persists, and
  shows the toast when a skin actually loads; if none can load, settings
  are left untouched and no toast appears.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 17:42:29 -05:00
DanSandClaude Opus 4.8 96352ce9ad fix(daemon): guard start/connect during shutdown
Once a shutdown was under way the app could still launch or restart the
full node and keep running the RPC connection state machine. That could
spawn a daemon process on the way out and surface a spurious connection
failure toast as the window tore down.

- Starting the embedded daemon now bails out immediately while a
  shutdown is in progress, so the node is never (re)launched on exit.
- The connect attempt returns early during shutdown, so there is no
  start/connect try and no stray failure toast on the exit screen.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 17:42:29 -05:00
DanSandClaude Opus 4.8 bbe2bf94dc fix(export): write the transaction CSV atomically and report failures
The transaction export streamed rows straight into an ofstream. A write
that failed partway, on a full disk or removable media, left a truncated
CSV on disk behind a success toast. The CSV formatting also lived inline
in the dialog with no test coverage.

- The CSV is now built in memory and written atomically (temp file plus
  rename), so a write failure is reported with an error toast and leaves
  no partial file.
- Formatting moves into a reusable helper, and the timestamp conversions
  use the thread-safe localtime variants and tolerate a conversion
  failure rather than dereferencing a null result.

Tests: field escaping neutralises formula-injection prefixes and quotes
special characters, and the full CSV has the expected header and rows.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 16:00:10 -05:00
DanSandClaude Opus 4.8 f76d71fede fix(chat): drop a redundant save and report a real contact-save result
Renaming or adding a contact from the chat tab called the address-book
mutator and then saved again, even though the mutator already persists.
It also reported success unconditionally, so a failed rename still
showed a success toast.

- The redundant explicit save is removed; the mutator's own save stands.
- A rename now shows success only when the mutator succeeds and an error
  toast when it does not.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 16:00:10 -05:00
DanSandClaude Opus 4.8 2a3e88c8dc fix(network): do not re-pin a lite server while a connect is in progress
Pinning a lite server while a connection to it was already being
established tore the in-flight connect down and restarted it, slowing
the very connection the user was waiting on.

- Pinning is now skipped while a connect is already underway, so the
  existing attempt is left to finish.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 16:00:10 -05:00
DanSandClaude Opus 4.8 b4ff9a10a2 fix(request): clear the stale payment URI, show it only for an address
The request-payment dialog kept its generated payment URI across opens
and closes. A dialog opened for an address with no payable shielded
address could still show the previous request's URI, and the string
lingered after the dialog closed.

- The payment URI is cleared when the dialog opens, when it closes, and
  on the close cleanup path.
- The URI field is shown only when there is both a URI and a real
  address to pay.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 16:00:10 -05:00
DanSandClaude Opus 4.8 76daf9619d perf(send): poll the clipboard for the paste hint only when it helps
The send tab read the OS clipboard every frame the paste button was
hovered, to preview a pasted address. SDL's clipboard read is a
synchronous round-trip that can stall, and the preview can only ever
latch when the recipient field is empty, so most of those reads were
wasted work.

- The clipboard is now read only while the button is hovered and the
  recipient field is empty, polled once on hover entry and then at most
  twice a second.
- Trimming the clipboard text moves to a shared helper that also bounds
  the copy so a pathological multi-megabyte clipboard is ignored.

Tests: the trim helper handles null, surrounding whitespace, an
all-whitespace string, and the length bound.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 16:00:10 -05:00
DanSandClaude Opus 4.8 3f82af99c4 refactor(market): resolve exchange/pair selection through one helper
The chart fetch and the Market tab both resolved the saved exchange and
pair names into the registry, with their own near-identical scans and
slightly different fallbacks. Keeping two copies risked the chart and
the chips disagreeing about which pair was selected.

- A single resolver maps the saved names to a registry index, matching
  the exchange name (any exchange when none is saved) then the pair
  display name, and falling back to the registry's first pair, the UI
  default. The chart fetch and the Market tab both call it.
- The Market tab now derives its selection indices from the saved names
  against the current registry every frame, so the indices stay correct
  when the live exchange list replaces the fallback; a steady-state fast
  path skips the scan once the indices already name the saved selection.

Tests: the resolver returns the right index for a matched exchange/pair,
an empty-exchange match, and the first-pair fallback on misses.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 16:00:10 -05:00
DanSandClaude Opus 4.8 ce00621a4a perf(market): precompute the address-picker selection flag once
The portfolio address picker's sort comparator looked up each address in
the selected-address set on every comparison, two hash lookups per call,
and the per-row draw repeated the lookup again. On a long address list
that is a lot of redundant hashing every frame.

- Each filtered candidate now carries its selected flag, looked up once
  when the list is built. The comparator reads the stored flag, so the
  sort produces the same ordering with no lookups of its own.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 16:00:10 -05:00
DanSandClaude Opus 4.8 a631e4421a refactor(contacts): share case-insensitive compare, truncation helpers
The contacts list carried its own lowercase-and-compare sort, its own
lowercase substring search, and an inline linear middle-truncation loop
for fitting an address to a column width. These duplicated logic that
belongs in the shared text helpers.

- A new allocation-free case-insensitive compare replaces the per-sort
  lowercasing; it lowercases ASCII per byte and leaves bytes >= 0x80
  alone, so UTF-8 labels sort exactly as before.
- Search now uses the shared case-insensitive contains helper.
- Middle-truncation to a pixel width moves to a shared template that
  binary-searches the fit (about log2(n) width measurements instead of
  up to n) while producing the same result as the old linear shrink.

Tests: the compare matches lowercase-then-compare across ASCII, UTF-8
bytes and length ties, and the fit helper matches the old linear loop
across lengths and widths.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 16:00:10 -05:00
DanSandClaude Opus 4.8 32ea4d0524 fix(mining): keep the thread benchmark running while the tab is hidden
The thread benchmark state machine was advanced from the Mining tab's
render path, so it only progressed while that tab was visible and the
window was on screen. Hiding the tab or minimizing the window froze the
benchmark mid-sweep.

- The benchmark now advances from the main update loop, ungated by
  connectivity, so it keeps running when the tab is hidden or the window
  is minimized.
- Its clock is driven from a steady wall-clock reading rather than the
  render delta, and each step is clamped like the other logic timers so
  a suspend/resume cannot leap a benchmark phase.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 16:00:10 -05:00
DanSandClaude Opus 4.8 fae5ef05b9 fix(mining): restore the miner after a benchmark only if it was running
Cancelling a thread benchmark always stopped and restarted the pool
miner at its pre-benchmark thread count, even when the user had not been
mining before the benchmark began. That silently started the miner on a
plain cancel or a switch to solo mode.

- A cancel now always drops the candidate-thread miner, and restarts the
  pool miner only when the user was mining before the benchmark, read
  from a snapshot taken at the start rather than the live running state
  (the benchmark sweep transiently stops the miner between candidates,
  so a live check would drop the restore).
- Callers that must not restore the miner (leaving solo mode) pass the
  new restore flag as false.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 16:00:10 -05:00
DanSandClaude Opus 4.8 13989cf268 fix(notifications): prune expired toasts and skip invisible draws
The status-bar notifications only expired the front of the queue, so an
expired newer toast could sit in front of a still-live older one and
hide it from view. The liveness check that drives continuous repaints
also disagreed with what render() actually showed.

- Expired toasts are now pruned wherever they sit in the queue, not just
  at the front, so the newest remaining toast is always a live one.
- The visible toast is the newest live entry, skipping an expired newer
  one. The liveness check reports active while a toast is visible plus
  one trailing frame, so the final faded-out state is painted once and
  then repaints stop; it self-expires if render() is skipped.

Tests: pruning removes expired entries from anywhere in the queue, the
visible toast skips an expired newest entry, and liveness tracks it.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 13:30:20 -05:00
DanSandClaude Opus 4.8 c5b325a752 perf(charts): fill chart areas in one linear pass
The filled sparklines and the market price chart built their area fill
with PathFillConcave, which runs a per-scanline pass over the whole
filled region. For a simple area under an x-monotone curve that work is
unnecessary.

- A new helper fills the area between an x-monotone polyline and a
  horizontal baseline directly as a triangle strip, in one pass over the
  points. The market sparklines, the market price chart and the mining
  hashrate sparkline all use it. The fill is flat and non-anti-aliased;
  the anti-aliased curve drawn on top hides the stepped top edge, and
  the faint side and bottom edges are imperceptible at these alphas.

Tests: the strip's vertex and index counts, index bounds, and that its
triangle area matches the trapezoid area under the polyline.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 13:30:20 -05:00
DanSandClaude Opus 4.8 969718e03a perf(theme): drop the redundant acrylic grain under glass cards
Glass cards draw their own grain layer over the surface overlay, but the
acrylic primitive beneath them was also drawing its grain. That lower
layer sits under the overlay at well below one grey level, so it is
invisible and only costs an extra noise pass per card.

- The card now asks the acrylic primitive for zero grain and keeps its
  own visible grain layer, removing the redundant pass with no visible
  change.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 13:30:20 -05:00
DanSandClaude Opus 4.8 7a9b29f358 fix(effects): stop retrying scroll-fade shader init after it fails
If the scroll-edge fade shader failed to compile or link, the init path
left its ready flag clear and tried again on the very next frame. On a
driver that rejects the shader that meant a fresh compile attempt every
frame, for the life of the program.

- A failed init is now latched and treated as final until destroy(), so
  the compile is attempted once, the failure is logged once, and the
  fades stay disabled without further retries. Destroying the shader
  clears the latch so a later re-init can try again.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 13:30:20 -05:00
DanSandClaude Opus 4.8 968d6d3875 fix(effects): capture the acrylic backdrop at framebuffer size on HiDPI
The acrylic effect blits its backdrop from the default framebuffer using
the logical viewport size as the source rectangle. On a HiDPI display
the framebuffer is larger than the logical size, so the blur sampled
only the lower-left corner of the screen and the glass showed the wrong
region stretched across each panel.

- The capture blit source now uses the real framebuffer pixel size
  (logical size times ImGui's DisplayFramebufferScale, truncated the
  same way the GL backend does), while the capture and blur targets stay
  at logical size. The framebuffer size is tracked separately from the
  viewport size so quality or buffer-lifetime resets cannot lose it, and
  moving the window between a Retina and a non-Retina display redoes the
  capture. DX11 is unaffected; its scale is one.
- The debug screenshot sweep captures at framebuffer size too, so HiDPI
  captures are no longer cropped.

Tests: the framebuffer-extent helper matches the GL backend's
truncation and falls back to the logical size when the scale is unknown.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 13:30:20 -05:00
DanSandClaude Opus 4.8 fdd95aa457 refactor(effects): drop the unused composite acrylic shader
The acrylic material carried a full composite shader — vertex and
fragment source, compile and link helpers, the program handle and seven
uniform locations — that nothing ever invoked. The acrylic is composited
on the ImGui draw list, not through this program.

- Remove the dead shader source, its compile/link helpers, the program
  and uniform fields, and the compile/link/cleanup steps in init and
  shutdown. No behaviour change; init no longer builds a program that is
  never bound.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 13:30:20 -05:00
DanSandClaude Opus 4.8 75e0c5048e fix(theme): give the menu acrylic the card blur radius
Every panel class samples one shared blur texture, so a menu asking for
a different blur radius than cards could not actually get it. All it did
was force a second full-screen blur pass each frame as the radius
flipped between the card and menu values, and let whichever class drew
last decide the radius for everything.

- Setting the acrylic theme now copies the card blur radius onto the
  menu class, so menus and cards share one radius and the blur runs
  once per frame. The first-use default path goes through the same
  setter so it is covered too.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 13:30:20 -05:00
DanSandClaude Opus 4.8 cd83038de5 perf(effects): cull off-screen card effects and sample border by arc
Glass cards scrolled out of view still ran their full effect path, and
the rainbow border always used a segment count derived from a fixed
per-pixel budget, so wide cards drew far more line segments than their
slowly changing gradient needed.

- A glass panel whose rectangle lies wholly outside the draw list's clip
  rect now returns early, so a scrolled-out card draws nothing (its
  border and ember passes are skipped along with the fill).
- The rainbow border is split into segments by perimeter arc length:
  straight edges get one segment per ~32 dp, corner arcs get a few
  chords each to stay round, and a fully transparent border is skipped
  outright. A wide card now draws tens of segments instead of a couple
  hundred, with no visible change.

Tests: the segment fractions are ascending and bounded, each corner arc
keeps at least three chords, and the rect-cull margin test.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 13:30:20 -05:00
DanSandClaude Opus 4.8 fbc429f914 perf(effects): keep the theme animation clock in double precision
The theme effects stored their animation time in a 32-bit float taken
from the ImGui clock. After a few days of uptime a float can no longer
resolve a single frame step, so every oscillation, drift and sweep began
to stutter, snapping forward a frame at a time instead of moving
smoothly.

- The clock is now held as a double, and the phase/oscillator maths runs
  through a small set of shared helpers that reduce the argument in
  double before returning a float. A float clock at 30 days steps by a
  quarter second per ULP; the double clock stays frame-accurate.
- Hue cycling, the rainbow and gradient borders, shimmer, specular
  glare, glow pulse, edge trace, embers, the sandstorm and the viewport
  wash all use the shared helpers, so their timing no longer drifts with
  uptime.

Tests: the helpers advance smoothly after seven days, pin the legacy
float breakdown at 30 days, and stay in range for negative offsets.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 13:30:20 -05:00
DanSandClaude Opus 4.8 944fafa1c7 perf(explorer): fetch each block with one RPC and back off on failure
Each recent block was fetched with two round trips (getblockhash then
getblock), and a height that failed, such as one briefly above the tip
during a reorg, was refetched on every frame.

- getblock is now called once with the height directly, falling back to
  the getblockhash plus getblock pair only when an older daemon answers
  "not found" for the short string; any other error is a real answer.
- A failed fetch backs off with a doubling wait (2 s up to 32 s) before
  any new fetch is scheduled, and a successful fetch resets the backoff.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 09:24:51 -05:00
DanSandClaude Opus 4.8 ebbeb846e8 feat(explorer): indexed block search with a bounded cache
The explorer block cache searched with a LIKE query that had to escape
wildcards, grew without any limit, and retried a failed open on every
frame, including a two-second busy wait on the UI thread.

- Search now uses an instr() substring test on a lowercased needle, and
  only checks the height text when the query is all digits, since a
  non-numeric needle can never appear inside a decimal height.
- The table is pruned to the highest 20000 blocks, once per open and
  periodically as blocks are stored, so the file stops growing at its
  high-water mark.
- A failed open is negative-cached (30 s by default) instead of retried
  every frame, and the busy timeout drops to 250 ms.
- When the cache database is unavailable or refuses a write, the block
  spills to a small bounded in-memory map that both the list and search
  read, so a spilled block never appears in one but not the other; the
  spill is cleared when the chain tip regresses.
- A batch of blocks is written under one savepoint instead of one commit
  per block.

Tests: case-insensitive hash and height search, the negative-cache and
spill paths with tip-regression eviction, and batch store plus prune.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 09:24:51 -05:00
DanSandClaude Opus 4.8 c3f981b52e fix(history): keep the open detail row across paging and filtering
The inline detail panel was tracked by the filtered list index. The
display list is rebuilt and re-sorted on every data change, sort switch
or filter edit, so a stored index pointed at a different transaction
after the rebuild, and a page reset was triggered by any change in the
row count, bouncing the view back to page 1.

- The open row is now tracked by a stable content key (txid, display
  type, address and the amount's exact bits) so the right row stays open
  across rebuilds.
- The page resets and the open row collapses only when a filter input
  changes (type, sort or the full search text). A new or removed row is
  data and now just clamps the current page.
- The open row is also cleared on page navigation and when the list
  empties, so a wallet switch does not resurrect an old expansion.

Adds pure helpers rowKey/filterInputsChanged to
transactions_tab_helpers.h.

Tests: rowKey distinguishes each field and separates +0.0 from -0.0, and
filterInputsChanged latches each input change but not the first frame.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 09:24:51 -05:00
DanSandClaude Opus 4.8 a5e4fd5c02 perf(history): group transaction rows by txid once per change
The History tab built a txid-to-indices map twice when its inputs
changed, once for the summary-card totals and once for the display list,
each a full pass over every transaction with string-keyed hashing.

- The rows are now grouped by txid a single time whenever the
  transaction list changes, into an index-only structure (first/next
  chains with no string copies), and both the summary pass and the
  display pass reuse it. A sort-combo change re-sorts without regrouping.

Adds a pure, unit-testable groupByTxid helper in
transactions_tab_helpers.h.

Tests: the chains match a reference map over a random id stream, and the
empty and single-row cases.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 09:24:51 -05:00
DanSandClaude Opus 4.8 01b59d24db perf(image-picker): cull off-screen thumbnail cells
The image picker laid out and drew every cell in the directory and image
grids, including the many cells scrolled out of view.

- A cell whose rectangle is not visible now reserves the same space with
  a dummy of the cell size, so the scroll extent is unchanged, and skips
  the hit-test and draw.

No visible change; only off-screen cells are skipped.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 09:24:51 -05:00
DanSandClaude Opus 4.8 3ca7a5c90e perf(explorer): cull off-screen rows in the block detail list
The block detail modal drew every transaction row of a block, running
the hit-test, the draw and a hash truncation for each one, even when the
row sat far outside the scroll viewport.

- A row entirely outside the scroll clip now keeps its layout slot (so
  the scroll extent is unchanged) but skips the hit-test, draw and hash
  truncation. The expanded row is always laid out so its inline detail
  panel still appears.
- The old "showing first 100 of N" footer is dropped, since every row is
  now cheap to lay out regardless of how many a block has.

No visible change; only off-screen rows are skipped.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 09:24:51 -05:00
DanSandClaude Opus 4.8 b8a4a11f90 fix(console): keep JSON folding active under channel filters
JSON folding in the console was bypassed in any filtered view, including
when only a channel toggle (daemon, RPC or app) was active. A collapsed
block silently expanded the moment a channel was toggled.

- Folding is now kept active unless the view is text-filtered or
  errors-only, which are flat so that every match stays reachable.
  Channel toggles keep folding, since JSON blocks are atomic per channel.
- The fold triangles and the collapsed " ... }" summary are drawn only
  in the fold-aware view, so the glyph and the rendered block can never
  disagree.

User-visible: JSON results stay foldable while channel filters are
applied.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 08:23:30 -05:00
DanSandClaude Opus 4.8 c1b289cc27 perf(console): cull off-screen wrapped rows
A long wrapped console line could extend far past the viewport, yet
every sub-row was still measured and drawn.

- Sub-rows that fall entirely outside the clip rect are now skipped. The
  per-row ordinal still advances for a culled row, so scanline parity is
  unchanged.

No visible change; only off-screen rows are skipped.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 08:23:30 -05:00
DanSandClaude Opus 4.8 f7ed1ae115 perf(console): tail-cap large RPC results without a full copy
A large RPC result was fully split into lines and copied before being
handed to the console, even though only the last few lines could survive
the model's line cap.

- The formatter now takes a line cap and keeps only the last N lines,
  located by a backward newline scan, so a huge result is never fully
  split or copied. JSON classification still keys off the first
  character of the whole result.
- It works over a string view and moves line text through, and fold
  spans are computed over the formatted lines directly instead of a
  separate vector of copies.
- getline semantics are preserved: a trailing newline adds no empty
  line and an empty result yields no lines.

Tests: getline parity for empty, trailing-newline and blank-line inputs,
the backward tail cap, and JSON classification and fold spans over a
capped result.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 08:23:30 -05:00
DanSandClaude Opus 4.8 116a997a3a fix(console): bound the pending queue by lines and bytes
The console's pending, not-yet-drained queue was unbounded, so a hidden
Console page that kept receiving verbose daemon-log chunks could grow
without limit.

- Pending lines are now bounded by both a line count and a byte budget.
  The oldest pending lines are dropped once either is exceeded, while
  the newest line is always kept so one huge line is never lost.
- A formatted RPC result is ingested as one block under a single lock,
  so lines from other producers can never interleave inside it.

The front-sequence accounting is also corrected: a pending line dropped
by the cap never entered the visible buffer, so it no longer advances
the front sequence. Only a front eviction or a clear does.

Tests: the line and byte caps keep the newest lines, a single oversized
line survives, a batch appends contiguously, and the front sequence
advances only on a front eviction or clear.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 08:23:30 -05:00
DanSandClaude Opus 4.8 70e96f75f0 perf(console): case-insensitive filtering without per-line copies
Console text filtering and match highlighting lowercased a full copy of
every line, and of every drawn segment, on each pass.

- A new alloc-free ASCII case-insensitive substring search folds both
  sides on the fly, so neither the filter test nor the highlight scan
  allocates a lowercased copy per line any more.
- Both call sites use it; the case-insensitive match behaviour is
  unchanged.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 08:23:30 -05:00
DanSandClaude Opus 4.8 6a24355c79 fix(console): release busy gate when the fast worker stops
When the daemon disconnects, teardown stops the fast RPC worker without
draining its queued main-thread callbacks. The console busy gate was
released inside that callback, so a command whose callback was discarded
left the input disabled for the rest of the session.

- The busy gate now drops from an RAII guard at the end of the worker
  job itself, so it is released however the job ends: success, error, or
  a worker torn down undrained.
- The result is published to the console before the gate drops, so a
  freed-up console always has the output queued.
- An unknown, non-std::exception failure is now caught and reported
  instead of escaping the job.

User-visible: the Console input can no longer stay stuck disabled after
a reconnect.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 08:23:30 -05:00
DanSandClaude Opus 4.8 5376681af5 fix(schema): parse node-status banner and layout UI sections
The UI-schema loader walked a hardcoded list of flat TOML sections and
left [banners.*] and [layout] out, so those sections in ui.toml were
silently dropped. The node-status error strip at the top of the content
column could not be styled from the schema at all.

- The flat-section list is now one shared constant used by the file,
  string and overlay loaders, and it includes banners and layout.
- The node-status banner is themeable from ui.toml like every other
  section; a note in the toml records that these parse as flat sections.

No visible change unless ui.toml overrides those sections.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-13 08:23:30 -05:00
DanSandClaude Opus 4.8 8255923f33 fix(settings): scope portfolio groups by wallet identity
Market-tab portfolio groups were tied to a wallet by a hash of its
address set. That hash changed whenever an address was added, so a
group built for a wallet could silently drop out of view once the
wallet gained a new address.

- Groups are now scoped by the wallet's stable id, which is persisted
  and never derived from the address set, so adding an address can no
  longer orphan a group.
- An older build's address-hash scope fails open (the group stays
  visible) and is migrated once per wallet per session to the stable id.
  A legacy group is claimed when its old hash matches, when one of its
  own addresses belongs to this wallet, or when only one wallet is
  known; anything ambiguous is left legacy and stays visible.
- Scope filtering waits until the wallet's addresses are loaded, so a
  group never flashes an empty 0.0000 balance and Add stays disabled
  until the wallet is resolved. This works on Lite, which never stamps
  an address-update time.

Behaviour: an older build opened after this change hides groups tagged
with a stable "w:" scope (they are not deleted and return on the next
upgrade) - worth a release note.

Tests: group visibility across global, stable and legacy scopes with the
wallet resolved and not; the migration rules (hash match, address
overlap, single-wallet claim, ambiguous left alone, idempotent); and a
save/load round trip where an address-set change cannot orphan the scope.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-12 21:42:23 -05:00
DanSandClaude Opus 4.8 c3ffc97b31 fix(ui): finish a stranded bootstrap even when its dialog is closed
A Settings bootstrap was only wrapped up inside the dialog's own draw
path. If the dialog finished downloading, verifying or extracting while
the user had clicked away or minimized the window, completion was never
processed: the connect and reconcile gate stayed held and the
post-bootstrap rescan was never armed.

- Completion is now a pure decision driven from a pump() that both the
  per-frame update and the dialog's render call, so a finished bootstrap
  is handled every tick whether or not the dialog is drawn.
- With the dialog open the behaviour is unchanged: it advances to the
  Done or Failed screen and those screens still own the gate. With the
  dialog closed, pump() releases the gate itself and shows a success or
  failure toast; a user-cancelled run is released silently.

User-visible: a bootstrap started from Settings now completes, arms its
rescan and reports its result even if the dialog is closed or the window
is minimized when it finishes.

Tests: the completion decision for an unfinished worker, a completed run
with the dialog open and closed, a failed run, and a user-cancelled run.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-12 21:42:23 -05:00
DanSandClaude Opus 4.8 d4339be94b fix(ui): keep a chosen send-from address from auto-select overwrite
The Send tab auto-selected the highest-balance address on first load.
When another tab had already pre-filled the source with "Send from this
address", that first-load pick overwrote the user's choice, and the
dropdown's selected index could drift out of step with the address that
would actually be debited when the address list changed.

- The send-from string is now the single source of truth. The one-shot
  auto-pick only fills an empty source and never replaces one the user
  or another tab set, and the list index is re-derived from the string
  each frame so it cannot desync.
- An explicit "Send from this address" choice latches the auto-pick off,
  so the first visit cannot undo it.
- A chosen source the dropdown does not list (zero balance, view-only,
  or the list still loading) now previews the address that will be
  debited instead of the "Select a source" placeholder.

User-visible: a send-from address chosen from another tab survives the
first load and later refresh ticks.

Tests: the source resolver keeps a pre-fill on first visit, fills an
empty source with the best spendable address, keeps a source missing
from a short list with index -1, latches nothing while disconnected or
with an empty list, and re-derives a stale index from the string.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-12 21:42:23 -05:00
DanSandClaude Opus 4.8 579accd0c6 fix(ui): validate shielded addresses with the correct RPC
The Validate address dialog chose its RPC from the first character of
the input, then asked the transparent-only validateaddress for every
case. That RPC is Base58-only, so a valid Sapling (z) address came back
isvalid=false and was reported invalid.

- The input is now classified with the checksum-verified recognizers,
  and a shielded address is sent to z_validateaddress while a
  transparent (mining) address keeps validateaddress.
- Anything that is not an address - a typo, garbage, or a pasted
  viewing/spending key - is judged invalid on the spot and never sent to
  the node, so a key pasted into the field is not leaked to an RPC.
- On Lite there is no node to ask, so the dialog shows the checksum
  verdict alone and hides the "owned by this wallet" row.

Tests: validateRpcMethod maps shielded to z_validateaddress, transparent
to validateaddress, and a key or empty string to no RPC.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-12 21:42:23 -05:00
DanSandClaude Opus 4.8 abc82136c4 fix(util): use the POSIX daemon binary name, scan versions off-thread
The installed-daemon lookup built the binary path from the Windows
resource key "dragonxd.exe", which never exists on Linux or macOS, so
the installed full node was never found there. The version scan also
read the whole binary, now around 200 MB, into memory on the UI thread.

- A new DAEMON_BINARY_NAME gives the daemon's file name on this platform
  ("dragonxd" on POSIX, "dragonxd.exe" on Windows); the old resource
  constant stays only as the embedded-table key. The installed daemon is
  now found on POSIX.
- The version-stamp scan streams the file in 4 MiB chunks with bounded
  memory, carrying bytes across each boundary so a stamp straddling it is
  neither cut short nor missed, and stops at the first match. The result
  is cached by path, size and mtime, so only a changed binary is
  rescanned.
- Settings stats the binary on the UI thread but runs the streamed scan
  on a worker, guarded so a new scan is not started while one is still
  running (the future blocks in its destructor), and the version fills
  in when it lands.

Tests: the POSIX path and binary name, a version stamp in a small file,
a stamp straddling the 4 MiB chunk boundary, and a file with no stamp.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-12 21:42:23 -05:00
DanSandClaude Opus 4.8 21dc874988 fix(core): refresh transaction history on the Mining tab
The Mining tab shows earnings derived from transaction history, but it
was not treated as a wallet-data page, so newly mined or paid-out
earnings did not appear until the user left the tab and came back. A
coinbase row also changes category in place (immature becomes generate
at maturity, or orphan on a reorg), and the Recent merge kept both the
old and the new row, double-counting the earnings.

- The Mining tab now gets the cheap between-blocks Recent poll: one
  listtransactions per new block, bounded by the 15 s transaction-age
  timer, once history has loaded. It never runs a full routine scan and
  never pre-empts an owed dirty cycle; tracked sends still take their
  normal cycle on any page.
- The shielded-payout probe runs only while the pool miner is running,
  since pool payouts are shielded receives while a solo miner's earnings
  are transparent coinbase rows.
- The Recent merge drops the previous row of the other coinbase category
  when a coinbase transitions, so maturing or reorged rewards are no
  longer counted twice. A non-coinbase row sharing the txid is left
  alone.

Behaviour change: mining earnings update on the Mining tab per block
instead of only on tab re-entry, and maturing or reorged coinbase rows
no longer double-count.

Tests: the per-block poll gate (one poll per block, due only after
history loads, held while dirty or addresses are dirty), the Mining-page
cycle shaping, and the coinbase transition merge for immature to
generate, generate to orphan, and a shared-txid non-coinbase row.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-12 21:42:23 -05:00
DanSandClaude Opus 4.8 fbe09c6a4c fix(security): follow the daemon's lock state on Set-PIN and expiry
Setting a PIN always unlocked the wallet with a 5 s probe and then
re-locked it, even when the wallet was already unlocked, so a PIN check
silently re-locked an unlocked wallet. And once the daemon's absolute
unlock window ran out the GUI still showed "unlocked", so the next send
failed with nothing on screen explaining it.

- The Set-PIN check now decides on the main thread: an unlocked wallet
  is verified with the time it has left (capped at seven days) and is
  not re-locked, so the GUI and the daemon keep agreeing; a locked
  wallet still uses the 5 s probe and re-locks. Either way the daemon's
  lock state is re-read afterwards, which self-heals any drift.
- When the daemon's unlock window has expired but the GUI still says
  "unlocked", a bounded reconcile (once per expiry, 30 s back-off)
  re-reads getwalletinfo so the lock screen and the transaction-cache
  lock follow the daemon. Lite wallets, which have no daemon timer, are
  left alone.

Behaviour change: with auto-lock disabled the daemon still re-locks at
its window, and the GUI now lands on the lock screen instead of
appearing unlocked until a send fails.

Tests: the Set-PIN verify plan (unlocked keeps its remaining time and
skips the re-lock, locked or near-expiry falls back to the 5 s probe and
re-lock, long windows are capped) and the unlock-expiry predicate across
encrypted, locked, no-deadline and not-yet-expired cases.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-12 21:42:23 -05:00
DanSandClaude Opus 4.8 2fce9a7860 fix(security): reconcile the encryption-pending flag on every connect
The wizard persists an "encryption requested" flag so a quit or crash
before the wallet is actually encrypted is not silent. That flag was
only reconciled on the slow-path getwalletinfo refresh, so it could be
left stale, and the clear-and-warn logic lived inline in two places.

- A single reconcileEncryptionPending now runs on every connect and on
  every encryption-state refresh, keyed on the parsed getwalletinfo
  reply. It clears the flag whenever the wallet is encrypted, however it
  got there (deferred request, Settings, another client), and warns once
  per session when encryption was requested but the wallet is not
  encrypted and nothing is pending or in flight.
- A failed or warm-up (-28) RPC decides nothing, so a 15 s timeout that
  forces encrypted=false can no longer mis-clear or mis-warn.
- The flag is also cleared at encryptwallet success and when the user
  removes encryption, so neither path leaves a stale flag that would
  warn on the next connect. No settings format change.

Tests: the pure decision helper over the flag, RPC-ok, encrypted,
deferred-pending, in-flight and already-warned combinations (clear when
encrypted, warn once when lost, nothing on a failed RPC or no flag).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-12 21:42:23 -05:00
DanSandClaude Opus 4.8 0aaf33ecf0 fix(core): drive auto-lock idle from real input, not widget focus
The auto-lock idle clock was reset whenever any ImGui item was active,
so a text field left focused (a half-filled send form, say) counted as
continuous activity and kept the wallet unlocked indefinitely, well past
the configured idle timeout.

- The idle clock is now fed by real input events (key, text, mouse,
  touch, pen, gamepad button) as they are ingested on the main thread,
  plus a still-held mouse button so a drag or scrollbar grab that emits
  no new event still counts. A focused but untouched widget no longer
  does.
- A new header-only IdleTracker owns the clock and never moves backwards,
  so an event stamped before the previous one cannot shorten the idle
  time.

Behaviour change: a form left focused and idle past the timeout now
auto-locks. The form's buffers are app state and survive the lock and
unlock, so nothing typed is lost.

Tests: a new IdleTracker case covers idle time growing with no events
(enough to trip a 900s lock), activity resetting it, the clock never
moving backwards, and a query before the last activity reading zero
rather than a negative value.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-12 21:42:23 -05:00
DanSandClaude Opus 4.8 1ea584311e fix(lite): honor the backend sync result with retry and a failed state
A failed backend sync was silently swallowed: the reply was never
inspected, so a sync that errored out left the wallet showing a
"syncing" state that never completed and never reported a problem.

- The sync and rescan replies are now parsed. On failure the partial
  progress is saved and the sync is retried with exponential back-off
  (5s doubling up to 60s, six attempts in all), then an explicit failed
  state is published: done, sync not complete, and the backend's error
  text carried through.
- A failed rescan is retried as a plain sync, because a rescan has
  already cleared the wallet and re-running it would throw away the
  partial progress just saved.
- A terminal error, such as a reorg deeper than the wallet can unwind,
  stops the retries immediately instead of waiting out the attempts.
- Recovery is observed, not guessed: once a later refresh's server-bound
  reads all succeed, the failed state clears itself.

Behaviour change: a sync failure now surfaces to the user as a failed
state with a message, instead of a frozen "syncing", and the client
retries on its own with back-off.

Tests: a parser case for the success, failure, and terminal replies, and
fake-backend controller cases for retrying after a failure, giving up
after the attempt cap, a terminal reorg stopping at once, a failed
rescan retrying as sync, cancel stopping the back-off, and the failed
state self-healing on a good refresh.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-12 21:42:23 -05:00
DanSandClaude Opus 4.8 3f7af2d028 fix(lite-backend): fix t-scan rewind underflow and retry the owed scan
When a sync pass's transparent (t-address) scan failed, the backend
mishandled it three ways: the retry computed its start height as the
block height minus the batch size, an unsigned subtraction that wrapped
to a huge value for low heights; the block range left un-scanned was
not remembered, so a transient failure left a permanent hole in the
transparent history that nothing ever revisited; and the block times
needed to date the transactions in that range were discarded.

- The owed range and the block times seen so far are now kept and folded
  into the next pass, which resumes from the lower of its own first block
  and any owed range.
- The scan start never subtracts, so it can no longer underflow.
- A t-address scan owed by an earlier failed pass is paid on the next
  sync even when no new block is pending.

Behaviour change: a transparent scan that fails is retried in-process on
the next sync rather than being lost. The owed range lives only in
memory and is never written to the wallet file, so the file format is
unchanged and remains interchangeable with other builds. The debt is
lost if the process exits or the server is switched before a retry
completes; Re-download blocks (rescan) recovers it, as today.

Tests: library tests on the extracted t-scan seam cover a failed pass
keeping its range and block times, a later success clearing the debt,
and the scan start never exceeding the pass start across the batch-size
boundary (the old formula wrapped there).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-12 21:42:22 -05:00
DanSandClaude Opus 4.8 5ae5e5213b fix(lite): sort lite transactions newest-first to match the UI panels
The lite backend lists transactions oldest-first, but every consumer of
the transaction list assumes newest-first and takes a prefix of it, so
the Recent Transactions / Recent Sends / Recent Received panels and the
CSV export showed the oldest records instead of the latest.

- The UI copy is now sorted pending (0-conf) first, then newest-first by
  timestamp, the same order as the History tab's default.
- The sort is stable, so several records that share a txid (a send entry
  plus its per-note entries, or same-block transactions) keep a
  deterministic order across refreshes. That keeps the order-sensitive
  change check reporting "unchanged" and avoids bumping the transaction
  revision every couple of seconds.

Tests: a new case covers the pending-first, newest-first ordering, a
stable order within one txid, and the revision staying unchanged when
the identical model is re-applied.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-10-12 21:42:22 -05:00
DanSandClaude Opus 5.5 e7f084e3eb fix(bootstrap): harden archive names, the cancel window and quit wait
The bootstrap preflight's protected names could be bypassed by names
that resolve onto them, and its cancel and quit paths had two timing
gaps.

- Entry names are judged as the file system resolves them: '\' is a
  separator, "." components are dropped and each component loses its
  trailing dots and spaces, as Win32 does ("./wallet.dat" and
  "DRAGONX.conf." name protected files). The whole archive is refused
  for an absolute or drive-rooted name, a ".." component, any ':'
  (drive letter or NTFS alternate data stream, "DRAGONX.conf::$DATA"),
  an 8.3 short name ("DRAGON~1.CON"), a component of only dots or
  spaces (other than "."), and any byte >= 0x80 or ASCII control
  character: macOS folds or ignores some Unicode (U+017F, U+212A,
  U+200C) onto a protected name, and the published bootstrap archive
  uses plain ASCII names. A refused name is echoed
  with \xNN escapes. A member is written at the path it was checked
  under, and the protected-name check runs on the resolved name.
- The user's Cancel (Settings dialog and first-run wizard) goes through
  requestCancel(). It is refused once the old chain data starts being
  replaced, and the start of that window re-checks a cancel under the
  same lock, so a click lands before the old chain is touched or not at
  all.
- Quit cancels the wizard's and the Settings bootstrap when the
  shutdown starts; the HEAD and checksum requests now end at once on
  cancel, and a cancelled HEAD keeps the partial download. A run
  cancelled before the window leaves the old chain as it was. A run
  inside it stops extracting and removes its partial chain while the
  shutdown screen shows "Cleaning up...", so it ends with no chain data
  (wallet.dat untouched; Retry reuses the zip, or the node resyncs).
  That wait is bounded: at most 2 minutes from the start of the
  shutdown, then 3 s in shutdown(), after which a worker still running
  is left to the process exit. Only a cleanup that overruns that cap
  can leave a partial chain, which dragonxd then answers with its
  reindex offer.

Tests: refusal of the Windows-resolved, non-ASCII and control-character
names with the escaped echo; the protected-name list incl. the resolved
forms and a planted -wallet file, conf and database/ that stay
byte-identical; the user-cancel window; the bounded quit wait and
safeToAbandon(); a cancel ends a HEAD request that never answers.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 a5185737e6 refactor(app): retire logo textures through the deferred-destroy queue
ensureLogoTexture() still freed the chat emoji, header logo and coin logo
textures it replaced at once, while every other theme-driven replacement
already goes through retireTexture() and is freed at the next preFrame().
It runs at the top of render(), so nothing referenced them yet; this is
hygiene, so that the same rule covers every replaced texture.

- ensureLogoTexture(): the three direct DestroyTexture() calls become
  retireTexture(). Cost: the old textures live one extra frame on a theme
  or accent change.
- setGradientTexture() (unused today) retires the texture it replaces
  instead of dropping it.
- No drain at shutdown: the process exits and the live logo and gradient
  textures are not freed at exit either.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 a581f42a33 fix(settings): disable the unimplemented Tor option and tell its users
The "Use Tor" checkbox was saved but never read: no build routed any
traffic (node, RPC, price/update/bootstrap/pool HTTP or Lite gRPC)
through Tor, so users who ticked it believed they were anonymous.

- The checkbox is disabled and always shown unticked, on the Settings
  page and in the legacy Settings window. Its tooltip says it is not
  available and gives the alternatives: for the node, proxy=127.0.0.1:9050
  in DRAGONX.conf with Tor running; otherwise a system-wide VPN/Tor (Lite
  builds get the short version). The "Use Tor" label is kept.
- Behaviour change: a stored use_tor=true is cleared once at startup
  (Settings::consumeLegacyUseTor + a synchronous save before the async
  writer and any Settings page state), with a 20 s warning in the user's
  language. The cleared key is the "already told" flag, so the notice
  never repeats. No settings format change.
- 3 new strings (tt_tor_unavailable, tt_tor_unavailable_lite,
  tor_never_applied_notice) in all 8 languages; the tooltip wraps at
  tor-tooltip-wrap-width from ui.toml.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 ae66b54694 fix(miner): keep an updated miner, don't re-extract the bundled one
Builds that embed xmrig (Windows release) re-extracted the bundled miner
whenever its size differed from the file on disk. An "Update miner..."
install always differs, so the next start silently put the bundled build
back while settings still showed the updated version.

- The bundled miner is now placed only when it is missing, like the node
  binaries (kXmrigRefreshOnSizeMismatch = false in the provision table).
  Params and asmap still follow the bundled size.
- Behaviour change: a wallet upgrade no longer refreshes a miner the user
  never updated; "Update miner..." is the way to get a newer build.
- The uncalled needsXmrigExtraction() is removed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 81733f5603 fix(rpc): run rescans and key imports without the 30 s timeout
A rescan or key import holds the node's cs_main for the whole wallet
scan. On the shared clients it hit the 30 s curl timeout, reported a
failure that wasn't one, abandoned a daemon RPC slot and flipped the app
into "node busy".

- One long wallet RPC at a time (rescan, importprivkey, importaddress,
  importwallet, z_importkey, z_importviewingkey, z_importwallet) runs on
  its own ungated client with no client timeout (rpc/long_call_lane.h).
  It can be aborted from any thread, and an abort is never lost, even
  one that lands before the client opens.
- The GUI rescan, key import and sweep use it. The sweep's fund-moving
  body is unchanged; only the client it calls differs. runtimeRescan()
  returns bool, and a refused post-bootstrap reconcile stays armed.
- The console routes rescan and the import commands through the lane;
  its input stays usable meanwhile, and a refusal is printed like any
  other result. RPCClient gains callRaw(.., timeoutSec).
- Restart, wallet switch, delete-chain, bootstrap (now also from
  Settings) and the other node-stopping flows are refused while it runs,
  with a message saying a key import or rescan is still running; quit
  asks for confirmation. The lane is aborted at quit.
- A second import or rescan is refused before the key is copied anywhere.
  An import cut off after the request reached the node (a lost reply,
  or a proxy's 502/504 while the node still imports) says the key may
  already be in the wallet and to run Settings -> Rescan. Only the
  node's own HTTP-layer refusals (401, 503, work queue full, unhandled
  request) say that the key was not imported. A pure
  classifyLongCallCutOff() makes that choice.
- New strings in all 8 languages; console results stay English.

Tests: the long-method list and the console's routing; one lane at a
time; an abort lands whether it comes before the client opens or during
the call; a call with no client timeout outlasts a 3 s scan, where a 1 s
gated client times out and marks the node busy; classifyLongCallCutOff()
for every failure kind with and without a sent request, and from raw
HTTP replies (502, 504, a plain 500 -> cut off; 401, 503, queue full,
unhandled -> refused).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 b3a57b07ad test(fake-daemon): add slow rescan and key-import methods
fake_dragonxd now answers rescan, importprivkey, z_importkey and
z_importviewingkey, so the GUI's long wallet RPCs can be reproduced
without a real node.

- Each one holds cs_main for FAKE_RESCAN_SECS (default 0). The lock-free
  getrescaninfo reports the scan while it runs, and, like v1.3.0, the
  scan stops early when a shutdown is requested.
- Argument checks, error codes and return values follow dragonxd
  (z_importkey returns null, importprivkey the t-address, the default
  "whenkeyisnew" skips a known key, z_importviewingkey needs its zaddr).
  Keys are only prefix-checked and never stored or logged; an imported
  spending key gets a made-up address that the address lists then show.
- FAKE_ENCRYPTED=1 / FAKE_WALLET_PASSPHRASE: an encrypted wallet that
  starts locked, with walletpassphrase (-14 on a wrong passphrase),
  walletpassphrasechange, walletlock and getwalletinfo unlocked_until;
  the imports answer -13 while it is locked. As in dragonxd, the right
  passphrase with a non-integer timeout unlocks first and only then
  fails (-1): the wallet stays unlocked with no relock timer of its
  own. A timer pending from an earlier unlock keeps running; otherwise
  only walletlock locks it again. Without FAKE_ENCRYPTED, those three
  methods answer -15 like dragonxd.
- FAKE_METHODS_ALL call events show keys and passphrases as <redacted>.

A plain run is unchanged: the same 63 GUI calls before and after, and
identical replies to every one of them.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 78e38570a8 fix(bootstrap): check archive and free space before deleting chain data
The bootstrap removed blocks/, chainstate/ and notarizations/ first and
only then opened the archive. An unsafe entry, a full disk or a corrupt
member therefore left no chain, or a half-written one for dragonxd to
start on.

- Preflight before anything is deleted: every archive entry must be
  safe (no absolute path, no "..") and readable, and the disk must hold
  the extracted size plus max(256 MiB, 5%), counting what removing the
  old chain frees (a symlinked chain dir counts 0). Free space counts as
  unknown only when the probe errors, the capacity is 0 or the
  available size is -1; a known disk with 0 bytes free is a refusal.
  The old chain is kept on every preflight failure.
- Protected members are skipped, compared case-insensitively: any path
  component starting with "wallet", any "database" component, a .cookie
  or *.conf file, and top-level *.dat files other than fee_estimates,
  peers and banlist. The number of non-critical member failures is
  logged.
- The removal of the old chain is verified (a locked file fails the run
  instead of mixing old and new chain files). If the extraction fails or
  is aborted, the partial chain is removed again before the failure is
  published; isDone() turns true only after the worker's last
  filesystem change.
- Cancel is disabled while the old chain data is being replaced, and
  quit aborts a running bootstrap.
- A complete zip from an earlier attempt is reused on Retry; its
  checksum is re-verified. A download that cannot fit fails early, and a
  disk-full write error says so.

Tests: the space rule (boundaries, unknown vs. full disk, saturation);
planArchive sizes, zip-slip, garbage and truncated zips; the
protected-name list; reclaimableBytes with symlinks; each preflight
refusal keeps the old chain and wallet.dat byte-identical; a corrupt
critical member removes the partial chain before the failure is
published.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 70d8b0f687 fix(daemon): supervise a daemon restarted after a crash
After an unexpected exit the monitor thread returned on its own but
stayed joinable, and start() only spawned a monitor when none was
joinable. A node restarted after a crash (no stop() in between) then ran
unwatched: a second crash was never detected, its output was never
drained, and the dead run's stdout pipe leaked into the next fork.

- start() joins a monitor that returned on its own (only when joinable,
  at the top, after the "already running" early returns), closes the
  dead run's stdout pipe (Windows: process and pipe handles), and always
  starts a new monitor for the process it launched. crash_count_ is kept.
- New lifecycle_mutex_ serializes start(), beginStop(), stop()'s flag
  writes and joins, and endStop(), so two threads can never join the same
  monitor. The monitor thread and the state callback never take it; a
  beginStop() racing a start() waits for it to return (its longest wait
  is the ~300 ms datadir-lock poll).
- start() is refused (returns false, state unchanged) while a stop is in
  progress, i.e. between beginStop() and endStop().
- The daemon tests now start the stand-in only in isolation (temp
  -datadir override, port check skipped): they no longer write the real
  ~/.hush/DRAGONX/obsidiandragon-dragonxd.pid or tail the real debug.log.
  New tests: restart after a crash is supervised, a restarted run stops
  cleanly, no fd leak over crash+restart cycles (Linux), and start() is
  refused while stopping.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 f6e5038043 fix(security): don't penalise a correct PIN after a passphrase change
A passphrase change left the PIN vault sealing the old passphrase. The
next PIN unlock opened the vault, walletpassphrase answered RPC -14, and
the generic catch ran the lockout curve on a correct PIN, while Settings
kept showing the PIN as active.

- Passphrase change: when the active wallet's vault exists at completion
  (same vault path as at dispatch, passphrase actually changed), the
  vault is marked out of date for the session and kept on disk: PIN entry
  is no longer offered, a warning toast says so, and Settings shows
  "PIN out of date" with a tooltip on how to fix it. The Change
  Passphrase dialog notes beforehand that a PIN will go out of date.
- PIN unlock: RPC -14 after the vault opened is treated as "PIN out of
  date": passphrase entry, a message, no attempt counted, no lockout, and
  the vault is not deleted (-14 is only the daemon's answer; the vault may
  hold the only copy of a passphrase that opens an older backup). After a
  restart Settings shows the PIN as active until the first PIN attempt.
- A malformed vault (zero-filled by a removeVault() whose unlink failed,
  truncated, unknown version) is treated as missing: passphrase entry,
  "PIN file unreadable", no penalty. New SecureVault::isWellFormed().
- Race guards: Set/Change/Remove PIN are disabled while a passphrase
  change runs, and Change Passphrase while a PIN operation runs.
- Setting or removing the PIN, or switching wallets, clears the mark;
  setting a PIN offers PIN entry again. Change PIN keeps the mark (the
  vault still seals the same passphrase).
- Pure decisions in data/pin_vault_policy.h, unit-tested. New strings in
  all 8 languages.

No vault, wallet or settings format change.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 62a5577491 fix(sweep): keep the UI sweep away from real wallet data
The full UI sweep (dev builds only) ran its demo surfaces against the
real profile. Its teardown deleted wallet-{cold,trading,mining,donations,
2023,payroll}.dat from the real datadir, it created zero-filled wallet
files and picker-demo/extra-wallets folders, its demo wallet-index upsert
re-minted the active wallet's scopeId (hiding "w:"-scoped contacts), the
Contacts tab could re-attach legacy-scoped contacts to such a throwaway
id in addressbook.json, and it persisted the demo active wallet file and
Mining pool worker.

- Preflight: a full sweep is refused (toast + log line) while a real
  workflow is in flight: a pending seed_migration_* setting or open
  migrate dialog, a wallet switch, an encryption/import workflow, an
  encrypt/PIN/lock operation, the seed-backup dialog, or a bootstrap.
  The DRAGONX_FULL_SWEEP hook then exits as for an empty catalog.
- Persistence latches: AddressBook (snapshot on the first sweepBegin,
  save/load latched while a demo-contacts surface is shown), WalletIndex
  and Settings (active wallet file, contacts view mode, pool URL/worker)
  for the whole sweep. Settings::sweepEnd() is the last statement of
  clearDemoWalletData and flushes once only if a save was suppressed; a
  quit mid-sweep writes nothing to the profile (the 0700 sandbox, with
  zero-filled demo files only, may stay in the temp dir).
- Scope ids: during a full sweep activeWalletScopeId() returns the
  persisted id or "" and never mints one, so the Contacts tab cannot
  move legacy-scoped contacts to a throwaway id. The only address-book
  write a sweep can still cause is the one-time legacy re-attach to the
  wallet's persisted id, which opening Contacts does anyway.
- Sandbox: demo wallet files and folders go to a fresh random 0700 dir
  under the temp dir (exclusive create, a pre-existing path or symlink
  is refused), removed at sweep end. The teardown that deleted those six
  wallet files is gone.
- Cleanup: the migrate-to-seed state, wizard phase, demo chat
  conversations and a fabricated demo chat identity are reset at sweep
  end; the seed-backup surface always shows the demo phrase and a real
  z_exportmnemonic result is dropped while the sweep runs.
- i18n: one new key (screenshot_sweep_refused) in i18n.cpp and the 8
  language files.

Tests: the address book snapshots only on the first sweepBegin, keeps
addressbook.json byte-identical while latched and restores the real
book; the wallet index keeps wallets.json and the real scope id, also
with the background writer attached; Settings restores the latched
values and flushes once only when a save was suppressed; the sandbox
helper refuses a pre-existing path or symlink and removes only a
prefixed dir, never a symlink's target.

Release note: v2.0.x UI sweeps could delete wallet-{cold,trading,mining,
donations,2023,payroll}.dat from the data directory and re-scope
contacts; this cannot be undone automatically.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 3ac46abe1a fix(security): compile the UI sweep only into dev builds
The screenshot sweep and the full UI sweep are dev tools. The full sweep
injects demo data into the live wallet state and the real data and
config dirs, and the tab sweep screenshots real balances and addresses.
Both were compiled into every build: the Settings buttons were
reachable in full-node releases, and the DRAGONX_FULL_SWEEP env hook
worked in every build, Lite releases included.

A default-OFF option alone would fail open: dev and release builds
share build/linux (and build/mac), so a release configured without
--clean would inherit a cached ON from the last dev configure.

- CMake: option(DRAGONX_ENABLE_UI_SWEEP ... OFF), passed to
  ObsidianDragon and ObsidianDragonTests as a compile definition.
- build.sh passes it explicitly: ON in the dev build, OFF in every
  release configure (Linux, Windows, macOS osxcross and native).
- Packaging guard: while the cache says ON, dragonx_release depends on
  dragonx_release_sweep_guard, which fails, so a hand-configured ON
  tree cannot package a release.
- startSweepImpl is a no-op unless the option is ON (an undefined macro
  counts as 0, so it fails closed). The enabled branch logs the
  sentinel "[Sweep] DRAGONX_UI_SWEEP_COMPILED_IN", so a release can be
  checked with `strings <bin> | grep -c DRAGONX_UI_SWEEP_COMPILED_IN`
  (must be 0).
- main.cpp: the DRAGONX_FULL_SWEEP hook is compiled out (autoSweep is
  false). It must be: with the sweep a no-op, the hook would quit the
  app once its warm-up frames ran out.
- Settings > Node > Debug options: both sweep buttons, open-dir, the
  seed-demo-chat button and the current-theme checkbox are compiled only
  into dev builds. The daemon debug categories are unchanged.

No i18n change: the existing strings stay in the tables.

Verified with an isolated release (DRAGONX_BUILD_ROOT/DRAGONX_RELEASE_ROOT
in a scratch dir) whose tree was first configured by hand with ON:
build.sh --linux-release without --clean leaves the cache OFF, and the
sentinel count is 0 in the built binary, the zip and the AppImage.
With the cache set back to ON by hand, --target dragonx_release fails
at the guard before compiling anything. Dev trees configured ON keep
the sweep (sentinel present; a one-surface DRAGONX_FULL_SWEEP run
against the fake daemon captured and exited cleanly).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 eac0993512 fix(lite): require a confirmed 8+ character passphrase to encrypt
The Lite "Encrypt wallet" field and the Create/Restore passphrase had no
confirmation and no minimum length; only an empty passphrase was
refused. Encrypting locks the wallet at once, and a locked wallet cannot
reveal its seed, so a typo there could cost a user without a seed backup
their funds. The full-node encrypt dialog already requires 8 characters
and a confirmation.

This applies to new passphrases only. Opening and unlocking are
unchanged: an existing wallet with a shorter passphrase still opens and
unlocks.

- A pure liteEncryptPassphraseValid(pass, confirm): at least 8 bytes and
  equal to the confirmation. It takes string_views, so the page's secret
  buffers are never copied.
- liteLifecyclePassphraseAcceptable(op, pass, confirm) gates the Settings
  create/open/restore request. Open is never checked, because its
  passphrase field also unlocks an existing wallet. Create and Restore
  are checked only when a passphrase was entered; an empty one still
  creates an unencrypted wallet.
- Encrypt gets a Confirm field. The button stays disabled until the
  passphrase is valid, and a hint says why (too short, with the count,
  or not matching).
- Create/Restore show a Confirm row once a passphrase is typed, with the
  same hint. Validate stays disabled while the passphrase is invalid, so
  a click never wipes a typed seed over a passphrase typo. The request
  builder re-checks the rule.
- The confirmation buffers are wiped with their passphrase: after a run
  or an encrypt, and when the Confirm row is hidden.
- Once the wallet is closed, the Settings page wipes the Encrypt,
  Confirm and Decrypt passphrase buffers whole every time, also when no
  secret was revealed; before, closing the wallet wiped them only while
  clearing a revealed backup or secret. They are zeroed in full because
  an emptied field can still hold the old tail past its first NUL.
- New copy under Encrypt: "Anyone with the wallet file can try
  passphrases offline. Back up your seed phrase first and use a long
  passphrase."
- i18n: three new keys (lite_confirm_label, tt_lite_confirm_pass,
  lite_encrypt_offline_warning) in i18n.cpp and the 8 language files,
  added additively. The hints reuse the wizard's wiz_pass_too_short and
  wiz_pass_mismatch. No new CJK glyphs, so the subset font is unchanged.

Tests: the validator rejects empty, short (7) and mismatched or
unconfirmed passphrases, and accepts 8 or more with a match. The request
gate always accepts Open, even "abc" with no confirmation, accepts
Create/Restore without a passphrase, and applies the rule to them
otherwise. An encrypted, locked wallet still opens and unlocks through
the controller with the 3-character passphrase "abc".

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 e52c9e1b92 fix(lite): classify imported keys before calling the backend
importKeyCore guessed the key type from its first character, then
retried a failed import with the other command. That retry is what sent
shielded keys to the backend's transparent-key decoder, which panicked
on them and poisoned the wallet lock. A WIF typo that was still
valid base58 also reached the backend unchecked.

- The key is classified first, and exactly one backend command runs, or
  none:
  - secret-extended-key-... and zxview... go to "import";
  - a Base58Check WIF with version 0xBC or 0x80 and the compressed flag
    goes to "timport";
  - everything else is refused before any backend call.
  There is never a retry with the other command. A testnet (0xEF) WIF
  is not accepted, because the Lite app is mainnet-only.
- New fixed, untranslated reasons: "uncompressed transparent keys are
  not supported by the Lite wallet", a full-node incoming viewing key
  (zivks) is explained as such, and anything else is "unrecognized key
  format". The key is never echoed.
- The backend's refusal while the wallet is encrypted now maps to "wallet
  is encrypted - remove encryption to import a private key". It is
  checked before "locked", because unlocking would not help.
- base58Decode reserves its buffers up front, and it and
  decodeBase58Check wipe their copies of the decoded bytes with
  sodium_memzero on every return path, since the input can be a private
  key.
- exportSeed rejects the all-zero-entropy phrase (23 x "abandon" + "art").
  A backend built before the seed-export fix returns it for a wallet
  whose lock failed halfway (seed wiped, wallet still unlocked); it is
  never a real backup and must not seed a chat identity.
- An open that the backend recovered from the .bak ("OK: recovered from
  backup; damaged file kept as <name>") is written to the lite log.

Tests: the retry control now expects one "import" and no "timport", and
"typo-key" makes no backend call; the controller's transparent-import
test uses a real compressed WIF. A new classifier test covers both WIF
versions, the shielded and viewing keys, a single call on failure, the
uncompressed, zivks, testnet, bad-flag and bad-checksum refusals, the
encrypted reason and its lite-log line, the zero-entropy seed and the
recovery log line.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 b6cffdf942 fix(lite-backend): catch panics at the wallet-open C entry points
litelib_initialize_new, litelib_initialize_new_from_phrase,
litelib_initialize_existing and litelib_check_server_online had no
catch_unwind (only litelib_execute did), so any panic below them
unwound across the C ABI into the GUI. With rustc 1.63 that is
undefined behaviour; in practice the process aborts with "fatal runtime
error: failed to initiate panic, error 5". The simplest trigger is a
malformed user-entered server URL: get_server_or_default unwraps the
http::Uri parse before anything else runs.

- ffi_guard (next to error_cstring) runs a body under catch_unwind and
  turns a panic into "Error: Rust panic in <name>", which the C++ bridge
  already treats as a failed call. The three init entry points keep
  their extern signatures and #[no_mangle] and call ffi_guard; their old
  bodies are now private *_impl functions.
- litelib_check_server_online wraps its body the same way and returns
  false on a panic.
- litelib_initialize_existing opens the wallet through
  read_from_disk_reporting. After a recovery from the .bak it returns
  "OK: recovered from backup; damaged file kept as <name>" instead of
  "OK". The C++ side treats any non-empty, non-error string as a
  successful open, so this is ABI-compatible.

No ABI or symbol change: the exported symbol inventory
(lite-backend-symbols.txt) is identical. panic = "unwind" stays in the
release profile, and every guard depends on it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 31304a1a63 fix(lite-backend): durable wallet saves, non-destructive backup recovery
do_save flushed the temp wallet and renamed it over the wallet with no
fsync of the temp file, the .bak or the directory, so after a power cut
the rename could be on disk while the data was not, leaving a torn
wallet. The readers then panicked on malformed bytes instead of
returning an error (the gzip Decoder and WalletTx unwraps in
LightWallet::read, the version asserts in data.rs and walletzkey.rs,
from_utf8/diversifier unwraps, and vec![0; len] on a corrupt length
prefix, which can abort the process outright), so read_from_disk's .bak
fallback was never reached. And the fallback itself was destructive: it
copied the .bak over the wallet before reading it, on ANY error, so the
damaged file was lost, a transient I/O error replaced a good newer
wallet with an older .bak, and a wallet written by a newer app ("Don't
know how to read wallet version") was overwritten too, dropping imported
keys that are not in the seed.

- do_save: sync_all the temp file (removed on error), copy the .bak,
  tighten and sync it through a write handle (FlushFileBuffers needs
  write access on Windows), rename, sync the copy-fallback destination,
  then fsync the directory on unix. No MoveFileEx write-through on
  Windows.
- read_from_disk: each parse runs in read_wallet_file under
  catch_unwind (panic = "unwind" is kept for release builds). The .bak
  is used only when the wallet fails with InvalidData, UnexpectedEof or
  InvalidInput, and it is read first, so a bad backup leaves both files
  as they were. A damaged wallet whose header says encrypted is not
  replaced by a plaintext .bak (only an older build leaves one): the
  open fails with an explanation and nothing changes. Otherwise the
  damaged wallet is moved (or, failing that, copied) to
  <wallet>.dat.corrupt-<unix secs>, with a -N suffix while that name is
  taken (a dangling symlink counts as taken), and is never deleted. The
  recovered wallet is tightened as before.
- read_from_disk_reporting returns the same client plus "recovered from
  backup; damaged file kept as <name>" after a recovery, for the FFI;
  read_from_disk wraps it. Both stages are also written to stderr,
  since the logger is not initialised yet when the wallet is opened.
- Readers return Err: a newer wallet version is ErrorKind::Unsupported
  (was InvalidData), and so is a newer WalletTx or key version;
  Decoder::new and WalletTx::read propagate with ?; a bad Utxo version,
  a negative or non-UTF-8 or non-R Utxo address, non-UTF-8 metadata
  addresses, an invalid diversifier and a viewing key with no default
  address are InvalidData. Every length-prefixed string and address is
  read through read_bytes_bounded (take(len).read_to_end, no cap, std's
  own short-read error), so a corrupt length is never allocated up
  front.

Flagged behaviour changes:
- fsync order: tmp, then .bak, then rename, then the dir (unix); saves
  at exit, encrypt and decrypt still run on the UI thread and get
  slower on slow disks;
- the readers return Err instead of panicking;
- the .bak fallback runs only for corrupt files, and the damaged file
  is kept as .dat.corrupt-<ts> (every copy is kept; one from a
  plaintext era keeps its seed, inside the 0700 dir);
- a wallet with a newer format errors (Unsupported) and is never
  replaced;
- a damaged encrypted wallet whose backup predates encryption is not
  opened.
Wallet format v9 is unchanged; valid files read and write byte for byte
as before. No ABI or symbol change.

Tests: a wallet whose parse panicked recovers from the .bak, the
garbage is kept as .dat.corrupt-<ts> and the report names it, and the
next open reports nothing; a newer-version wallet is Unsupported and
both files are unchanged (this fails when only the version error kind is
reverted); an unreadable (0000) wallet is a PermissionDenied error that
changes nothing either; a corrupt wallet with
a corrupt or no .bak changes nothing; a damaged encrypted wallet with a
pre-encryption plaintext .bak is refused with both files unchanged and
nothing moved aside; a recovery never overwrites an earlier
.dat.corrupt-<ts> or follows a dangling symlink; every truncation of a
wallet and of a WalletTx is an Err, crafted Utxo, metadata, note and key
records are the expected Err kinds, and a u64::MAX length returns at
once.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 39333f80b7 fix(lite-backend): keep wallet files and logs private to the owner
On Linux and macOS the Lite data dir (~/.silentdragonxlite) was created
with create_dir_all (0755 under the default umask) on every
get_zcash_data_path() call, even by the startup wallet_exists() probe.
do_save wrote the wallet through File::create (0644) and renamed it into
place, and fs::copy gave the .bak the same mode, so any local account
could read the wallet file, and the plaintext seed with it when the
wallet was not encrypted. The debug log was 0644 and its roller pattern
was relative, so rolled logs landed in the process's working directory.

A crash-leftover .dat.tmp was truncated and reused: an fd another
account had opened on it read the next wallet. And after encrypt(), the
first save copied the previous, plaintext wallet to .bak, where the seed
stayed until the next save, or for good if the app quit right away.

- New helpers, each an item-level #[cfg(unix)] / #[cfg(not(unix))]
  pair: create_private_dir_all (0700 components), tighten (strips only
  the group/other bits of an existing dir or file, keeps the owner bits,
  never follows a symlink), create_private_file_new (unlinks a stale
  file, then create_new with 0600), and a once-per-process warning when
  a chmod fails (drvfs, FAT, NFS).
- get_zcash_data_path creates the default data dir 0700 and tightens an
  existing one (for test/regtest also its parent). A caller-supplied
  data_dir is created as before and never chmodded, and the params dir
  is left alone.
- do_save writes a fresh 0600 temp file and tightens the .bak after the
  copy. At the plaintext -> encrypted transition (the wallet is
  encrypted and the on-disk header says plaintext) the .bak is copied
  from the new, encrypted file. wallet_header_encrypted reads the flag
  byte for versions 4 and 6-9 only (v5 is gzip) and returns None when it
  cannot tell, which keeps the old behaviour.
- read_from_disk tightens a wallet restored from .bak, and the wallet
  and .bak after every successful read.
- get_log_config pre-creates the log 0600 on unix and anchors the
  roller in the data dir; a data path containing "{}" keeps the old
  relative pattern. log4rs re-creates the log with the umask mode after
  a 5 MB roll, so the 0700 data dir is the lasting control.

Flagged behaviour changes:
- on unix, the data dir is 0700 and existing files lose their
  group/other bits (owner bits kept, symlinks and a caller-supplied
  data_dir untouched); a shared group or a backup user under another uid
  loses read access;
- a fresh 0600 temp file is used;
- the first encrypted save backs up the encrypted file;
- the log rolls inside the data dir (old rolled logs in former working
  directories are not cleaned up).
On Windows the file modes are unchanged; the encrypted first .bak and
the log-roll location apply there too. Wallet format v9 is unchanged;
no ABI or symbol change.

Tests: the wallet and .bak are 0600 after every save and after an open
from 0644, and a wallet restored from a loose .bak is 0600, while the
caller's 0755 data dir is unchanged; a stale 0644 .dat.tmp is replaced
by a new inode and an fd held on it still reads the stale bytes; tighten
keeps owner bits (0555 -> 0500), ignores the other kind and symlinks,
create_private_dir_all makes every component 0700, and
create_private_file_new never reuses or follows a stale file or link;
after encrypt the first save's .bak is encrypted, byte-identical to the
wallet and unlocks to the seed; the header probe answers only for v4 and
v6-v9; the log is 0600, the roller pattern and a real roll stay in the
data dir, and a "{}" path falls back. An opt-in test
(DRAGONX_LITE_SCRATCH_HOME=1, temp HOME) checks the default data dir,
its testnet parent, a symlinked data dir and the params dir.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 a5db2e9a3d fix(lite-backend): never hang or panic a sync on malformed server data
The lightwalletd server controls the compact ciphertext length, the
block, prev-block and tx hash lengths, and (through the chain) the full
txs' epks. Each of these could wedge or poison a sync:

- try_sapling_compact_note_decryption asserts a 52-byte ciphertext. A
  shorter (or full 580-byte) one panicked a pool job in
  scan_output_internal while the original sender stayed alive, so the
  collector waited forever with sync_lock, txs.write() and a wallet read
  guard held.
- scan_taddress_txids kept its own sender alive too: one panicking
  t-address job (scan_full_tx) left crx.iter().take(n) blocked forever.
- CompactBlock::hash()/prev_hash() assert 32 bytes when no header is
  sent, and every vtx hash is copied into a [u8; 32], one of them under
  txs.write(): a 31-byte tx hash poisoned the wallet for good, and a bad
  hash in the block's txid list panicked after the witnesses had moved.
- scan_full_tx and scan_full_mempool_tx unwrapped as_prime_order() on
  the epk. Consensus rejects only a small-order epk, so a mixed-order
  one can be mined: an own tx then failed every sync, and the mempool
  receiver thread died silently.

Changes:
- append_leaf(node: Node, ..) commits a leaf to the existing, block and
  new witnesses and the tree; the epk-error path, the new
  short-ciphertext path and the normal path all use it (a
  behaviour-neutral extraction).
- A compact ciphertext under 52 bytes is skipped with its cmu still
  committed; a longer one is truncated to 52 bytes, which is exact (the
  compact plaintext is those bytes and the cmu re-check validates it).
- Each decryption job catches a panic and sends exactly one message;
  drop(tx) after the dispatch, and the collector logs a vanished or
  panicked job and treats the output as not ours.
- scan_taddress_txids runs through the private seam
  scan_taddress_txids_with(job): catch_unwind per job, drop(ctx), and a
  count check, so a dead job is an error, never a hang or a silent
  partial success.
- scan_block_with_pool checks the block, prev-block and vtx hash lengths
  right after the parse and returns Err(-1), as for an unparsable block,
  before any change (Err(height) would refetch the same block forever
  under sync_lock).
- scan_full_tx and scan_full_mempool_tx skip an output whose epk is not
  in the prime-order subgroup (one check per output, used by every
  decryption and the outgoing recovery).
- The mempool receiver thread catches a panic of scan_full_mempool_tx.

Flagged behaviour changes:
- a compact ciphertext under 52 bytes is skipped (its cmu is still
  committed); one over 52 bytes is truncated;
- pool-job panics are reported (logged; the output is treated as not
  ours, which a rescan repairs) instead of hanging the sync;
- bad hash lengths return Err(-1) before any change;
- outputs with a non-prime-order epk are skipped;
- the mempool thread survives a bad tx.
Wallet format v9 is unchanged; no ABI or symbol change. Honest data
takes the same path as before (an old-vs-new run over generated honest
chains is byte-identical).

Tests (each on its own thread under a 15 s watchdog):
0/51/52/53/580-byte ciphertexts in one block on the inline and deferred
witness paths (the 51-byte notes are skipped, the 53- and 580-byte notes
are found, the tree and every witness match the reference); a 31-byte tx
hash, an empty block hash, a 31-byte prev hash and a 33-byte foreign tx
hash each return Err(-1) with the txs lock usable and
last_scanned_height, trees and witnesses unchanged; a mixed-order epk in
scan_full_tx and scan_full_mempool_tx does not panic and decrypts
nothing while the real epk still decrypts; a t-address job panicking for
1 of 3 addresses is an Err. The oracle generator gains short
(0..=51-byte) and full (580-byte) ciphertext outputs without an extra
random draw, so each seed keeps its sequence of blocks, values and
keys.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 55431cd606 fix(lite-backend): make lock/unlock atomic, check passphrase to decrypt
lock() zeroed the seed first and then locked the keys one by one. A key
with no encrypted copy (an import into an encrypted wallet by an older
build) failed halfway: the seed was all zeros, the earlier keys were
wiped, and the wallet still reported unlocked. Seed export then showed
the all-zero-entropy phrase ("abandon ... art") as the backup.

unlock() had the mirror problem. When the passphrase was right but a
later key failed (a zaddress/fvk mismatch, a bad sealed key), the keys
decrypted so far stayed in memory while the wallet reported locked, and
write() saves a locked wallet as is, so the next save put them in
plaintext into the encrypted file. unlock also unwrapped the nonce and
the sealed key, so a malformed or foreign file panicked under the wallet
write lock and poisoned it.

remove_encryption() on an unlocked wallet never looked at the
passphrase: any string, even "", removed the encryption for good, and
the next save wrote the seed and every key in plaintext.

- WalletTKey/WalletZKey get can_lock(), which mirrors lock()'s
  precondition. lock() checks every key first and changes nothing when
  one cannot be locked; the keys are locked next and the seed is zeroed
  last.
- unlock() runs the t-key loop, then the z-key loop; on any error it
  re-locks every key that can be locked before it returns. This drops
  only plaintext copies that can be re-derived or re-decrypted.
- The nonce and enc_key unwraps in LightWallet::unlock and in
  WalletTKey/WalletZKey::unlock return "Wallet encryption data is
  corrupt" (InvalidData) instead.
- get_seed_phrase() returns "" when the wallet is encrypted and its seed
  is all zeros.
- remove_encryption() opens the sealed seed with the given passphrase
  first, locked or unlocked, before it changes anything.

Flagged behaviour changes:
- lock() checks every key before it changes anything;
- a failed unlock re-wipes;
- corrupt encryption data returns an error, not a panic;
- seed export never returns the all-zero phrase;
- remove_encryption verifies the passphrase in both lock states (a wrong
  passphrase now fails with "Decryption failed. Is your password
  correct?").
Wallet format v9 is unchanged; no ABI or symbol change. The KDF is
unchanged; upgrading it is left for later.

Tests: lock is atomic for an unsealed t-key and an unsealed imported
z-key (seed, unlocked flag and keys unchanged, then a clean lock and
unlock); a failed unlock leaves no t-key or z-key secret in memory or in
the written file, and with the z-key's real derivation index restored
the same passphrase unlocks every key; a key with no sealed copy, a
missing nonce or a nonce of the wrong length is an error in WalletTKey,
WalletZKey and LightWallet, and remove_encryption refuses it too;
remove_encryption with a wrong or empty passphrase fails locked and
unlocked, and the right one round-trips an unencrypted v9 file; an
encrypted wallet with a zero seed exports "".

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 20b63bf45d fix(lite-backend): validate WIFs, refuse key import while encrypted
import_taddr decoded a WIF with bs58::decode(..).unwrap(), a [2..66]
slice of its hex and SecretKey::from_slice(..).unwrap(), all under the
wallet write guard that do_import_tk holds. A z-key, a typo or any short
string panicked there and poisoned the wallet until restart, and the
checksum was never verified, so a mistyped WIF that was still valid
base58 imported a different key.

A private key imported into an encrypted wallet was stored without an
enc_key. The import then failed in do_save's lock(), which had already
zeroed the seed while the wallet stayed "unlocked": seed export showed
the all-zero-entropy phrase.

- decode_taddr_wif replaces the old decode: Base58Check with the
  checksum verified, version 0xBC (the config prefix) or 0x80, and the
  0x01 compressed flag. It decodes into a buffer it owns and wipes it
  with sodiumoxide::utils::memzero on every path, including a failed
  checksum. Errors are fixed strings that never contain the key.
- import_taddr and add_imported_sk refuse while the wallet is encrypted,
  as add_taddr and add_zaddr already do.
- do_import_tk and do_import_sk check is_encrypted() before the
  "locked" check, so a locked wallet does not send the user to unlock
  and retry.

Flagged behaviour changes:
- Base58Check, version 0xBC/0x80 and the compressed flag are required;
- uncompressed and foreign-network WIFs are rejected with fixed
  messages (an uncompressed key used to import under the compressed
  address, where its funds are not);
- no panic and no poisoned lock;
- private-key import (t and z) is refused while the wallet is
  encrypted, with a reason that says to remove encryption, import, then
  encrypt again; viewing keys still import;
- the key is never echoed.
No ABI, symbol or wallet format change.

Tests: garbage, z-keys, bad checksums, a transposed or flipped
character, a zero scalar, a wrong flag, uncompressed, 0x05 and 0xEF WIFs
are rejected with their message and leave tkeys usable; the wallet's own
export, a 0x80 WIF and the published key-1 vector still import; the
encrypted refusal in the wallet and the client, locked and unlocked,
leaves lock, save and seed export intact; a viewing key still imports
into an encrypted wallet; a bad timport leaves the wallet lock unpoisoned.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 026d0e92a6 fix(lite-backend): serialize clear and rescan with a running sync
clear_state_from wiped the wallet's blocks, txs and mempool maps without
taking sync_lock. The console `clear` and `rescan` commands run
concurrently with the refresh worker's sync (litelib_execute drops the
client mutex before a command runs), so a clear could land after a sync
had already taken its nullifier snapshot. scan_block then unwrapped a
note that was no longer in the wallet and panicked under the txs write
guard, which poisons the wallet until restart.

- clear_state_from now takes sync_lock first (lock order sync_lock ->
  wallet, as in do_save and do_sync). No caller holds sync_lock, so it
  cannot self-deadlock; do_rescan holds no lock when it clears.
- clear_state reads the birthday into a local before calling
  clear_state_from. Before, the wallet read guard was a temporary that
  lived across the call, which read-locks the wallet again: with a
  writer (a save, an import, a new address) queued in between, the
  writer-preferring RwLock on Linux and Windows could deadlock. Holding
  it while waiting for sync_lock would also have inverted the lock order
  against do_save.
- scan_block resolves each spent note with and_then instead of three
  unwraps. A spend of a note that is no longer in the wallet logs a
  warning and is skipped.

Flagged behaviour changes:
- console clear/rescan and the GUI rescan wait for an in-flight sync or
  save to finish instead of racing it;
- the recursive wallet read lock that could deadlock a concurrent save
  is gone;
- a spend of a vanished note now warns and is skipped instead of
  panicking; it is counted after the next rescan.
No ABI, symbol or wallet format change.

Tests: clear_state_from waits for sync_lock, clear_state holds no wallet
guard while it waits, neither leaks the lock, and a 200x clear/write
loop finishes within a 20 s watchdog (a regression guard only).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 0a72b47ca6 fix(lite-backend): verify TLS for the t-address scan and mempool monitor
The transparent-address txid scan in the sync loop and the mempool
monitor both hard-coded no_cert = true, so they connected to the
lightwalletd through get_client's NoCertificateVerification path in
every Lite build, while the app always passes dangerous = false. Block
sync, info, broadcast and the full-tx fetcher already honour
LightClientConfig::no_cert_verification. An active man in the middle on
those two channels could hide or invent transparent balance, UTXOs and
pending transactions (signing stays local, so no funds can be taken).

Both calls now take the setting from the config:
- the sync loop passes self.config.no_cert_verification to
  scan_taddress_txids;
- start_mempool_monitor reads config.no_cert_verification once and
  passes it to monitor_mempool.

Flagged behaviour change: a lightwalletd with an invalid or self-signed
certificate now fails the t-address stage (do_sync retries, then returns
the error) and the mempool monitor (it logs and retries), as block sync
already does. `dangerous` is the only bypass. No ABI, symbol or wallet
format change.

A tripwire test checks that lightclient.rs never again hard-codes the
bypass for either call; its needles are joined at runtime so the test
cannot match its own source.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 13:22:00 -05:00
DanSandClaude Opus 5.5 1848025a95 build(lite-backend): fat LTO and one codegen unit for release builds
The qtlib wrapper's Cargo.toml, the workspace root of the backend build,
had no release profile, so libsilentdragonxlite.a was built with cargo's
defaults: no LTO and 16 codegen units, with the objects of every
dependency copied into the archive.

The release profile now sets opt-level 3, fat LTO and one codegen unit.
panic stays "unwind", written out with a comment: litelib_execute turns
a panic into an error through catch_unwind, and the full-tx fetcher and
the threadpool turn scan-job panics into errors by unwinding. There is
no strip setting: rustc does not link a staticlib, and build.sh strips
the final executable.

Measured, building the same source both ways:
- archive: Linux 126.7 -> 71.5 MB with 1580 -> 1 Rust object files;
  Windows 105.9 -> 65.8 MB with 1560 -> 1;
- stripped ObsidianDragonLite: Linux 84,283,856 -> 75,366,184 bytes
  (-8.9 MB, -10.6%); Windows exe 87,436,288 -> 79,379,968 bytes
  (-8.1 MB, -9.2%). On Linux .text went from 20.0 to 14.8 MB and
  .eh_frame from 2.67 to 1.19 MB;
- exported symbols unchanged (blake3_PW and the 8 litelib_* functions);
- a forced panic in the send command's JSON parsing still returns
  "Error: Rust panic in litelib_execute", and the next call works;
- lite_smoke --restore-recent, --keys and --encrypt pass with identical
  output apart from chain tip and birthday; restore CPU time is
  unchanged within noise (115.8-117.2 s before, 111.7-118.8 s after)
  and peak RSS dropped from 38.5 to 31.6 MB;
- backend build time: Linux 70 -> 118 s, Windows 54 -> 102 s.

This has no effect on releases until the backend artifacts are rebuilt:
build.sh links the prebuilt build/lite-backend/<platform> archives,
which are still the old non-LTO ones (the Windows one also predates the
recent backend commits). Rebuild them with
scripts/build-lite-backend-artifact.sh from a clean, committed tree.

Not verifiable here: on Windows only the link was checked, with no panic
probe, smoke run, sync or send (inlining can grow stack frames, and
mingw threads get about 2 MB of stack); the macOS artifact was not built
(CARGO_PROFILE_RELEASE_LTO=thin is the fallback if fat LTO is a problem
there); and a send, with its proving, needs a funded wallet.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 06:05:07 -05:00
DanSandClaude Opus 5.5 1bf803f107 fix(app): free the replaced gradient texture and defer logo frees
reloadThemeImages() replaced gradient_tex_ in each of its three branches
(image loaded, load failed, no background) without freeing the old
texture, so every skin activation, including the one at startup, leaked
one texture.

The logo and coin textures were freed immediately instead, although the
current frame's draw lists can still reference them: the window backdrop
records its images at the start of the frame and skin switches happen
mid-frame (Settings, Ctrl+arrow keys), and the screenshot sweep switches
skins after RenderDrawData() but before the secondary viewports are
rendered. That hands the renderer a freed texture.

Textures replaced mid-frame are now retired to a queue (retireTexture()
also zeroes the member) that the next preFrame() frees first, after the
previous frame's draw data has been rendered. The old gradient is
retired at the top of reloadThemeImages(), and the logo and coin where
they used to be freed. ensureLogoTexture() still frees directly, since
it runs at the top of render(), before this frame draws a logo.
Shutdown does not drain the queue.

Measured with a temporary live-texture counter over a screenshot sweep
of all 10 skins: before, 6, 7, ... 15 live textures (one more per skin);
now a constant 5. The first screenshot after each skin switch is
pixel-identical to before on all 10 skins, and the full sweep matches
within noise.

Not verifiable here: DX11 at runtime.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 06:05:07 -05:00