40b3154a34
Session highlights:
- feat(prefs): DPAPI-backed key/value store (PM.UserPrefs) — fixes
rememberedUsername being lost across reboots due to the random
ephemeral HTTP port changing the localStorage origin every launch.
Bridge cmd://prefs/{get,set} round-trips through Delphi.
- feat(tray): icon visible from startup (NIM_ADD at constructor, not
at first minimize). Tray context menu themed via uxtheme!135
SetPreferredAppMode so it follows the app's dark/light setting.
- feat(single-instance): named mutex + RegisterWindowMessage broadcast.
Second launch posts WM_PMSHOW to HWND_BROADCAST and exits; the
running bridge restores the window from tray. Mutex lives in Local\
namespace so distinct Windows users can still each run one.
- feat(mfa): Authenticator sidebar view (live TOTP codes for every
entry with a secret) + standalone TOTP generator modal (paste
base32 / otpauth:// URI, or generate a random 20-byte secret).
- feat(sidebar): Folders / Tags / Tools sections collapsible with
chevron toggle. Badge counts stay visible when collapsed. State
persisted in settings_json (synced across devices).
- feat(autofill): hotkey when vault is locked now restores the app
and focuses the master password input instead of no-op'ing
silently. Cleaner UX for the common "I hit Ctrl+Shift+L but the
vault was locked" path.
- feat(quick-unlock): when enabled, skip lockVault on Windows lock /
sleep. Rationale: the DPAPI blob already gates access via the
Windows account, so re-locking on top of the OS lock is redundant.
Idle auto-lock still fires (separate opt-in).
- fix(quick-unlock): re-sync state.quickUnlockEnabled from DPAPI
source-of-truth at boot, instead of trusting (now-volatile)
localStorage.
- docs: CLAUDE.md updated with all new modules, bridge commands,
and the port-ephemeral pitfall.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
77 lines
2.1 KiB
ObjectPascal
77 lines
2.1 KiB
ObjectPascal
unit PM.SingleInstance;
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{
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Single-instance guard.
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AcquireOrSignal:
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- First instance: creates a named mutex and returns True. Caller proceeds.
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- Subsequent instance: detects the mutex, broadcasts WM_PMSHOW so the
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running instance restores from tray, returns False. Caller exits.
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WM_PMSHOW is a RegisterWindowMessage('PMServer_ShowExisting') — system-
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unique, all processes that register the same string get the same ID.
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PM.Bridge listens for it on its message-only window.
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}
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interface
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uses
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Winapi.Windows, Winapi.Messages;
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const
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// Mutex name lives in the Local\ namespace → per-user-session, so a
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// second user on the same machine (RDP, Switch User) can still launch
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// their own instance. The Global\ namespace would block them.
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PMSERVER_MUTEX_NAME = 'Local\PMServer.SingleInstance.Mutex';
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// System-wide unique message ID, computed once. Bridge + .dpr both call
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// this to get the same UINT.
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function WM_PMShowMessage: UINT;
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// Try to become the single instance. True = we are first; False = another
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// instance was already running (we have signalled it and the caller must
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// exit immediately).
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function AcquireOrSignal: Boolean;
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implementation
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var
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_Mutex: THandle = 0;
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_WmShow: UINT = 0;
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function WM_PMShowMessage: UINT;
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begin
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if _WmShow = 0 then
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_WmShow := RegisterWindowMessage('PMServer_ShowExisting');
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Result := _WmShow;
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end;
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function AcquireOrSignal: Boolean;
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var
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LErr: DWORD;
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begin
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_Mutex := CreateMutex(nil, True, PMSERVER_MUTEX_NAME);
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LErr := GetLastError;
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if (_Mutex <> 0) and (LErr <> ERROR_ALREADY_EXISTS) then
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begin
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// We are the first instance. Keep the mutex alive for the process
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// lifetime — Windows releases it automatically on exit.
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Result := True;
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Exit;
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end;
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// Another instance is already running. Close our handle (it isn't ours)
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// and broadcast the show-message to all top-level windows. The running
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// bridge picks it up on its message-only window.
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if _Mutex <> 0 then
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begin
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CloseHandle(_Mutex);
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_Mutex := 0;
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end;
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PostMessage(HWND_BROADCAST, WM_PMShowMessage, 0, 0);
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Result := False;
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end;
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end.
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