Merge pull request #137 from outis1one/claude/pensive-wright-ko0ipl

Claude/pensive wright ko0ipl

CLAUDE.md

@@ -0,0 +1,22 @@
+# CLAUDE.md
+
+## No user data in the repo
+
+Never write anything specific to a person's kiosk, network or accounts into
+this repository - not in code, tests, fixtures, docs, comments, commit
+messages, branch names or pull request text.
+
+That includes:
+
+- WiFi network names (SSIDs), passwords, keys and tokens
+- MAC addresses, IP addresses, hostnames and interface names taken from a
+  real machine
+- usernames, email addresses, PINs and passwords
+- the URLs of someone's own sites or services
+- log output, screenshots or terminal output pasted in by a user
+
+When an example, test or fixture needs a value like these, use an obvious
+placeholder (`ExampleNet`, `192.0.2.10`, `aa:bb:cc:dd:ee:ff`, `wlan0`,
+`example.com`) instead of a real one. When debugging from output a user
+shares, keep it in the conversation or the scratchpad, not in a file in this
+repo, and leave it out of commit messages.

Readme.md

@@ -91,7 +91,7 @@ Useful options (`iso/build-iso.sh --help` for all):
 
 | Option | Effect |
 |---|---|
-| `--unattended` | First-boot install takes every default with no prompts (skips the Core Settings menu) and reboots into the kiosk. Set sites afterwards in the Web UI (`http://<ip>:8090`) or `./install.sh`. |
+| `--unattended` | First-boot install takes every default with no prompts (skips the Core Settings menu) and reboots into the kiosk. Set sites afterwards in the Web UI (`http://<ip>:8888`) or `./install.sh`. |
 | `--username NAME [--password PASS]` | Pre-set the admin account (password is prompted for if omitted; only a hash goes on the ISO). Not `kiosk`. |
 | `--hostname`, `--ssh-key FILE`, `--locale`, `--keyboard` | Pre-set those. |
 | `--auto-network` / `--auto-storage` | Skip the network screen (DHCP on ethernet) / wipe the largest disk without asking. |
@@ -249,6 +249,7 @@ The kiosk machine still needs a working internet connection (ethernet, or WiFi c
 - **1-finger swipe** (dual mode) - Navigate within page (arrow keys)
 - **On-screen keyboard** - Auto-shows on text fields or click keyboard icon
 - **Navigation menu** - Click key icon (top-left) to access site list and gesture cheat sheet
+- **Back / home / forward buttons** (optional, off by default) - three half-transparent buttons (◀ 🏠 ▶) at the top middle of the screen; the home button returns the site on screen to the address it was set up with under Sites & Page Timing, for kiosks with no keyboard or mouse side buttons. They appear on a tap, click or mouse movement and fade after a few seconds. Turn on in Core Settings → Display & Interaction, or the Web UI, where you can also set how solid they look (opacity 10–100%, default 50).
 
 ### On-Screen Keyboard
 - **HTML-based keyboard** with full QWERTY layout
@@ -506,6 +507,7 @@ Host myserver
 - **Virtual consoles** (Ctrl+Alt+F1-F8) - Optional, configurable during install
 - **X server key combinations disabled** (Ctrl+Alt+Backspace)
 - **Right-click disabled** in kiosk app
+- **Web UI login** - when password protection is on, the Web UI asks for the same PIN/password as the lock screen
 - **Screen blanking disabled** with schedule awareness
 - **DPMS management** - Aggressive keep-alive with schedule respect
 
@@ -537,7 +539,9 @@ It writes the same netplan file as Core Settings → WiFi (`/etc/netplan/60-kios
 
 **About Fn:** the Fn key is handled inside most keyboards and never reaches the computer, so it isn't part of the combo - holding it too does no harm where Fn+W is still W. On compact keyboards where Fn+W is something else (often Up arrow), leave Fn out.
 
-The root part is `/usr/local/bin/kiosk-wifi-helper` (status/scan/connect only), which the kiosk user may run via sudo through `/etc/sudoers.d/kiosk-wifi` - nothing else. Existing kiosks get it with Advanced → Upgrade.
+**More than one WiFi adapter** (e.g. a built-in card and a USB dongle): a *WiFi adapter* dropdown appears at the top, and the status box lists every adapter with what it's connected to. Status, scan and connect act on the one you pick; by default it's the adapter that's connected right now.
+
+The root part is `/usr/local/bin/kiosk-wifi-helper` (status/scan/connect and region only). The app reaches it through a root-owned socket, `/run/kiosk-wifi-helper.sock` (`kiosk-wifi-helper.socket`, group-restricted to the kiosk user, `0660`), rather than `sudo`: the app can end up running with Linux's "no new privileges" flag, and then sudo refuses with *"The no new privileges flag is set"*. A passwordless-sudo rule (`/etc/sudoers.d/kiosk-wifi`) stays as a fallback. Existing kiosks get both with Advanced → Upgrade.
 
 ---
 
@@ -773,7 +777,10 @@ smb://WORKGROUP/COMPUTER/PrinterName
 **Keyboard Shortcuts:**
 - `Ctrl+Tab` or `Ctrl+]` - Next tab
 - `Ctrl+Shift+Tab` or `Ctrl+[` - Previous tab
-- `Alt+Right/Left` - Next/Previous tab
+- `Ctrl+PageDown` / `Ctrl+PageUp` - Next/Previous tab (the standard browser keys)
+- `Alt+Right` / `Alt+Left` - Page forward / back within the current site (the standard browser keys; they used to switch tabs)
+- `Alt+Home` - Back to the current site's own start address (the one set under Sites & Page Timing)
+- Mouse side buttons (back/forward) - the same page forward/back
 - `F10` or `Ctrl+H` - Toggle hidden tabs
 - `Escape` - Return to normal tabs (from hidden)
 - `Ctrl+Alt+Delete` or `Ctrl+Alt+P` - Power menu
@@ -1579,7 +1586,7 @@ full migration pass.
 - **Fix:** the CUPS menu could report an installed CUPS as "not installed" (`dpkg -l | grep -q` failing under `set -o pipefail`).
 
 **Previous (v2.17.0):**
-- **Web UI now installs by default** during first-time provisioning (fixed port 8090, no prompt) instead of being opt-in — the Addons menu entry still works standalone for reconfiguring the port or reinstalling it on a kiosk provisioned before this change.
+- **Web UI now installs by default** during first-time provisioning (port 8888 for new installs, 8090 on older ones; no prompt) instead of being opt-in — the Addons menu entry still works standalone for reconfiguring the port or reinstalling it on a kiosk provisioned before this change.
 - **The web UI can now install/reconfigure CUPS Printing, LMS Server, Squeezelite Player, and Asterisk Intercom, and check for updates** — the same four addons plus Update named directly. Every one of these is the exact same interactive `action_*` function the terminal menu already uses (no prompt/mutation refactor of any addon file), driven by piping the right answers on stdin — the same technique this project's own bash tests already use to drive these functions.
 - **Privilege model:** the web service itself still runs as `$KIOSK_USER` with zero ambient `sudo`. A new narrow, allow-listed root helper is the only way it ever gains privilege — reachable only via a single-path passwordless sudo rule (generated and validated with `visudo -c -f` before being installed), and it re-checks its own fixed action allow-list before dispatching anything. Chosen over running the whole service as root after asking directly: since this repo has no login of its own by design, a request that reaches the web UI with no reverse proxy in front is effectively unauthenticated, so the allow-list bounds what that can actually do to five vetted actions, never a root shell.
 - Long-running installs stream live output to the browser via Server-Sent Events, one action at a time — a second request while one is in flight gets a clear `409`, never silently queued or dropped.
@@ -1590,7 +1597,7 @@ full migration pass.
 **Previous (v2.16.0):**
 - **New: Web UI** (Addons → Web UI) — a small Node/Express app (`webui/`) giving a browser-based editor for Sites & Page Timing, Display & Interaction, and Password Protection & Lockout, the three Core Settings menus that are pure `config.json` read/write with no privileged system mutation involved. Runs as a systemd service under `$KIOSK_USER` (the same user Electron runs as), so it never needs `sudo` — it reads/writes `config.json` with normal filesystem permissions.
 - `webui/lib/config.js` re-implements `lib/config.sh`'s exact field list, defaults, and merge-on-save contract in JS — `kiosk-app/main.js` already reads the same `config.json` directly in JS, so this isn't a new pattern — meaning it can never silently clobber fields it doesn't track (Authelia's credentials, the unused quiet-hours fields, etc), the same failure mode previously fixed in `lib/config.sh`'s own history.
-- **No login of its own, by design.** Authelia runs elsewhere; the expectation is a reverse proxy (e.g. Caddy) with Authelia forward-auth in front of it, the same way other self-hosted apps get protected — Authelia integration is explicitly out of scope for this repo. Direct LAN access with no proxy in front has no authentication at all — treat it like SSH access to the kiosk.
+- **Login follows the kiosk's password protection.** With password protection on (Core Settings → Password Protection & Lockout), the Web UI asks for the same PIN/password the lock screen uses (a session lasts 12 hours; 5 wrong tries in a row slow it down like the lock screen does; changing the code signs every browser out). With protection off there is no login, so beyond a trusted LAN turn protection on or put it behind a reverse proxy (e.g. Caddy) with Authelia forward-auth — Authelia integration is out of scope for this repo. Direct LAN access with protection off has no authentication at all — treat it like SSH access to the kiosk.
 - Deliberately narrow scope for this first pass: WiFi, Timezone, Power/Display/Quiet Hours, Complete Uninstall, every other addon, and everything in Advanced remain terminal-only — a network-facing process shouldn't be handed `sudo`-level system mutation (netplan, `timedatectl`, `apt`, systemd timers) without a lot more thought than this pass gives it. A "restart kiosk display" action was left out for the same reason — would need a narrow polkit grant, a follow-up.
 - Wired into Complete Uninstall (`webui_do_uninstall`) and Clone Settings (addon-presence detection) the same way every other addon is.
 - This is the single-kiosk piece of the web-based GUI mentioned in this doc's "Modular Management" notes for a while — a central multi-kiosk fleet dashboard is an intentional follow-up, not part of this pass.

iso/build-iso.sh

@@ -18,7 +18,7 @@
 #      ~/ubuntu-based-kiosk - interactively by default (same prompts as a
 #      manual install), or with --unattended taking every default and
 #      rebooting straight into the kiosk. Configure sites afterwards via
-#      the Web UI (http://<ip>:8090) or ./install.sh.
+#      the Web UI (http://<ip>:8888) or ./install.sh.
 #
 # Nothing in the original ISO is changed except /boot/grub/grub.cfg
 # (menu title, plus the `autoinstall` kernel argument with --no-confirm);

kiosk-app/main.js

@@ -1,5 +1,6 @@
 const {app,BrowserWindow,BrowserView,globalShortcut,ipcMain,dialog,session}=require('electron');
 const {exec,spawn}=require('child_process');
+const net=require('net');
 const fs=require('fs');
 const path=require('path');
 const os=require('os');
@@ -59,6 +60,8 @@ let allowNavigation='same-origin';
 let enablePauseButton=true;
 let enableKeyboardButton=true;
 let enableNavButton=true;
+let enableHistoryButtons=false;
+let historyButtonsOpacity=50;
 let enablePasswordProtection=false;
 let lockoutPassword="";
 let lockoutTimeout=0;
@@ -101,6 +104,11 @@ function loadConfig(){
     enablePauseButton=(config.enablePauseButton!==false);
     enableKeyboardButton=(config.enableKeyboardButton!==false);
     enableNavButton=(config.enableNavButton!==false);
+    enableHistoryButtons=(config.enableHistoryButtons===true);
+    {
+      const pct=Number(config.historyButtonsOpacity);
+      historyButtonsOpacity=(Number.isInteger(pct)&&pct>=10&&pct<=100)?pct:50;
+    }
     enablePasswordProtection=(config.enablePasswordProtection===true);
     lockoutPassword=config.lockoutPassword||"";
     lockoutTimeout=(config.lockoutTimeout||0)*60000; // Convert minutes to ms
@@ -121,6 +129,7 @@ function loadConfig(){
     console.log('[CONFIG] Navigation:',allowNavigation);
     console.log('[CONFIG] Pause button:',enablePauseButton);
     console.log('[CONFIG] Keyboard button:',enableKeyboardButton);
+    console.log('[CONFIG] Back/forward buttons:',enableHistoryButtons,'opacity',historyButtonsOpacity+'%');
     console.log('[CONFIG] Password protection:',enablePasswordProtection);
     console.log('[CONFIG] Lockout timeout:',lockoutTimeout/60000,'minutes');
     if(lockoutAtTime)console.log('[CONFIG] Lock at time:',lockoutAtTime);
@@ -763,6 +772,23 @@ function rotateToNextSite(){
   }
 }
 
+// The address a site is loaded from: its configured URL, with the site's
+// own login filled in (if it has one) and local files/folders turned into
+// the kiosk's viewer addresses. Used when a site's view is first created
+// and by the home button, so both always agree.
+function buildTabUrl(t){
+  let url=t.url;
+  if(t.username&&t.password){
+    try{
+      const u=new URL(t.url);
+      u.username=t.username;
+      u.password=t.password;
+      url=u.toString();
+    }catch(e){}
+  }
+  return resolveLocalSite(url);
+}
+
 function attachView(i){
   closeHTMLKeyboard();
 
@@ -1144,6 +1170,75 @@ function returnToTabs(){
   markActivity();
 }
 
+// Page back/forward in the site that's on screen (Alt+Left / Alt+Right, the
+// mouse's side buttons, and the optional on-screen buttons). Not while the
+// screen is locked or a dialog (PIN, WiFi, power...) is open on top - the
+// keys would silently navigate the page hidden behind it.
+function historyBlocked(){
+  if(isLockedOut)return true;
+  for(const w of [pinWindow,wifiWindow,promptWindow,pauseWindow]){
+    if(w&&!w.isDestroyed())return true;
+  }
+  return false;
+}
+
+function historyGo(direction){
+  if(historyBlocked())return;
+  const view=showingHidden?hiddenViews[currentHiddenIndex]:views[currentIndex];
+  if(!view||!view.webContents||view.webContents.isDestroyed())return;
+  const wc=view.webContents;
+  const nav=wc.navigationHistory;
+  if(direction==='back'){
+    if(nav?nav.canGoBack():wc.canGoBack()){nav?nav.goBack():wc.goBack();}
+  }else{
+    if(nav?nav.canGoForward():wc.canGoForward()){nav?nav.goForward():wc.goForward();}
+  }
+  markActivity();
+}
+
+// The tab (index into tabs) behind the n-th hidden view: hidden sites are the
+// ones with duration -1, in order.
+function hiddenViewIndexToTabIndex(h){
+  let n=0;
+  for(let i=0;i<tabs.length;i++){
+    if(parseInt(tabs[i].duration)===-1){
+      if(n===h)return i;
+      n++;
+    }
+  }
+  return -1;
+}
+
+// Home button / Alt+Home: back to the address this site was set up with
+// (Core Settings -> Sites & Page Timing), whatever page the user has
+// browsed to since. Acts on the site that's on screen, so with several
+// sites each one goes to its own address.
+function historyHome(){
+  if(historyBlocked())return;
+  const view=showingHidden?hiddenViews[currentHiddenIndex]:views[currentIndex];
+  if(!view||!view.webContents||view.webContents.isDestroyed())return;
+  const tabIdx=showingHidden?hiddenViewIndexToTabIndex(currentHiddenIndex):viewIndexToTabIndex(currentIndex);
+  if(tabIdx<0||!tabs[tabIdx])return;
+  const target=buildTabUrl(tabs[tabIdx]);
+  if(view.webContents.getURL()!==target){
+    view.webContents.loadURL(target).catch(()=>{});
+  }
+  markActivity();
+}
+
+// Power menu -> Lock now: put up the lock screen right away (the same one
+// the inactivity timeout shows). Only when password protection is on and a
+// code is set - showLockoutScreen refuses otherwise, so a kiosk with no
+// code can't be locked with nothing to unlock it.
+function lockNow(){
+  if(!enablePasswordProtection||!lockoutPassword){
+    console.log('[LOCKOUT] Lock now ignored - password protection is off');
+    return;
+  }
+  console.log('[LOCKOUT] Lock now requested from the power menu');
+  showLockoutScreen('unlock');
+}
+
 function showPinEntry(){
   if(pinWindow&&!pinWindow.isDestroyed()){
     pinWindow.focus();
@@ -1215,7 +1310,56 @@ const WIFI_HELPER='/usr/local/bin/kiosk-wifi-helper';
 const WIFI_IDLE_TIMEOUT=5*60000; // closes after 5 minutes untouched
 let wifiWindow=null,wifiUnlocked=false,wifiIdleTimer=null;
 
-function runWifiHelper(action,input){
+const WIFI_SOCKET='/run/kiosk-wifi-helper.sock';
+
+// Parse the helper's one JSON reply line (the last line of its output).
+function parseWifiReply(out){
+  const line=out.trim().split('\n').pop();
+  return JSON.parse(line);
+}
+
+// Preferred route: a root-owned socket (kiosk-wifi-helper.socket). Unlike
+// sudo it keeps working when this app has the "no new privileges" flag set.
+// Resolves null when the socket isn't usable (not installed yet, or this
+// user isn't allowed), so the caller falls back to sudo.
+function runWifiHelperSocket(action,input){
+  return new Promise(resolve=>{
+    let out='',done=false;
+    const finish=result=>{if(!done){done=true;clearTimeout(killer);resolve(result);}};
+    const sock=net.connect({path:WIFI_SOCKET,allowHalfOpen:true});
+    const killer=setTimeout(()=>{sock.destroy();finish({ok:false,error:'The WiFi helper timed out'});},120000);
+    sock.on('connect',()=>{
+      // Request = action line, then the JSON body; half-close so the
+      // helper sees end of input.
+      sock.end(action+'\n'+(input?JSON.stringify(input):''));
+    });
+    sock.on('data',d=>{out+=d;});
+    sock.on('error',e=>{
+      if(out){
+        // A reset after the reply arrived - use the reply.
+        try{finish(parseWifiReply(out));return;}catch(_){}
+      }
+      if(!out&&['ENOENT','ECONNREFUSED','EACCES','EPERM'].includes(e.code)){
+        console.log('[WIFI] Helper socket unavailable ('+e.code+') - falling back to sudo');
+        finish(null);
+      }else{
+        finish({ok:false,error:'Could not reach the WiFi helper: '+e.message});
+      }
+    });
+    sock.on('close',()=>{
+      if(done)return;
+      try{
+        finish(parseWifiReply(out));
+      }catch(e){
+        console.error('[WIFI] helper socket output:',out);
+        finish({ok:false,error:'The WiFi helper gave no usable answer'});
+      }
+    });
+  });
+}
+
+// Fallback: the helper through passwordless sudo (/etc/sudoers.d/kiosk-wifi).
+function runWifiHelperSudo(action,input){
   return new Promise(resolve=>{
     let out='',err='',done=false;
     const finish=result=>{if(!done){done=true;resolve(result);}};
@@ -1232,12 +1376,11 @@ function runWifiHelper(action,input){
     child.on('error',e=>{clearTimeout(killer);finish({ok:false,error:'Could not run the WiFi helper: '+e.message});});
     child.on('close',()=>{
       clearTimeout(killer);
-      const line=out.trim().split('\n').pop();
       try{
-        finish(JSON.parse(line));
+        finish(parseWifiReply(out));
       }catch(e){
-        // Not our JSON - typically sudo refusing ("a password is required")
-        // on a kiosk set up before this feature: Upgrade installs the rule.
+        // Not our JSON - typically sudo refusing ("a password is required",
+        // or the "no new privileges" flag) - Upgrade installs the socket.
         console.error('[WIFI] helper output:',out,err);
         finish({ok:false,error:(err.trim()||'The WiFi helper is not installed')+' - run Advanced -> Upgrade from the admin menu'});
       }
@@ -1247,6 +1390,12 @@ function runWifiHelper(action,input){
   });
 }
 
+async function runWifiHelper(action,input){
+  const viaSocket=await runWifiHelperSocket(action,input);
+  if(viaSocket!==null)return viaSocket;
+  return runWifiHelperSudo(action,input);
+}
+
 function resetWifiIdleTimer(){
   if(wifiIdleTimer)clearTimeout(wifiIdleTimer);
   wifiIdleTimer=setTimeout(()=>{
@@ -1327,7 +1476,10 @@ ipcMain.handle('wifi-request',async(event,req)=>{
     return result;
   }
   if(!wifiUnlocked)return{ok:false,error:'Enter the PIN first'};
-  if(action==='status'||action==='scan')return runWifiHelper(action);
+  if(action==='ifaces')return runWifiHelper('ifaces');
+  if(action==='status'||action==='scan'){
+    return runWifiHelper(action,req.iface?{iface:String(req.iface)}:null);
+  }
   if(action==='region-status')return runWifiHelper('region-status');
   if(action==='region-set'){
     const input={};
@@ -1337,7 +1489,7 @@ ipcMain.handle('wifi-request',async(event,req)=>{
   }
   if(action==='connect'){
     console.log('[WIFI] Connecting to',JSON.stringify(String(req.ssid||'')));
-    const result=await runWifiHelper('connect',{ssid:String(req.ssid||''),password:String(req.password||'')});
+    const result=await runWifiHelper('connect',{ssid:String(req.ssid||''),password:String(req.password||''),iface:req.iface?String(req.iface):''});
     console.log('[WIFI] Connect result:',result.ok?('ok '+result.ip):result.error);
     return result;
   }
@@ -1406,7 +1558,7 @@ function showPowerMenu(){
 
   // For normal mode, use custom overlay with 30-second timeout
   console.log('[POWER] Showing custom power menu overlay');
-  const powerInfo={version:VERSION,localIP:localIP,vpnIP:vpnIP.trim()};
+  const powerInfo={version:VERSION,localIP:localIP,vpnIP:vpnIP.trim(),canLock:!!(enablePasswordProtection&&lockoutPassword)};
   // Send to all views (preload.js runs in views, not mainWindow)
   for(const view of views){
     if(view&&view.webContents&&!view.webContents.isDestroyed()){
@@ -1468,6 +1620,11 @@ async function createWindow(){
   
   mainWindow.on('focus',()=>markActivity());
   mainWindow.webContents.on('before-input-event',()=>markActivity());
+  // Mouse side buttons (back/forward). Reported by the window on Linux.
+  mainWindow.on('app-command',(event,command)=>{
+    if(command==='browser-backward')historyGo('back');
+    else if(command==='browser-forward')historyGo('forward');
+  });
   
   if(!tabs.length){
     mainWindow.loadURL('data:text/html,<body>No Sites Configured</body>');
@@ -1487,16 +1644,7 @@ async function createWindow(){
     
     mainWindow.addBrowserView(view);
     
-    let url=t.url;
-    if(t.username&&t.password){
-      try{
-        const u=new URL(t.url);
-        u.username=t.username;
-        u.password=t.password;
-        url=u.toString();
-      }catch(e){}
-    }
-    url=resolveLocalSite(url);
+    const url=buildTabUrl(t);
     
     const initialOrigin=new URL(t.url).origin;
     
@@ -1553,6 +1701,7 @@ async function createWindow(){
       console.log('[MAIN] Page loaded - sending keyboard-button-enabled: '+enableKeyboardButton);
 
       view.webContents.send('nav-button-enabled',enableNavButton);
+      view.webContents.send('history-buttons-config',{enabled:enableHistoryButtons,opacity:historyButtonsOpacity});
       console.log('[MAIN] Page loaded - sending nav-button-enabled: '+enableNavButton);
 
       console.log('[MAIN] Page loaded - resending pause-button-visibility: '+shouldShow+' for '+t.url);
@@ -1594,8 +1743,13 @@ async function createWindow(){
     if(action==='shutdown')exec('systemctl poweroff');
     else if(action==='restart')exec('systemctl reboot');
     else if(action==='reload'){app.relaunch();app.quit();}
+    else if(action==='lock')lockNow();
   });
   ipcMain.on('toggle-hidden',toggleHidden);
+  ipcMain.on('history-nav',(event,direction)=>{
+    if(direction==='back'||direction==='forward')historyGo(direction);
+    else if(direction==='home')historyHome();
+  });
   ipcMain.on('return-to-tabs',forceReturnToTabs);
   ipcMain.on('user-activity',markActivity);
   ipcMain.on('show-keyboard',()=>{showHTMLKeyboard();});
@@ -1785,9 +1939,16 @@ async function createWindow(){
     globalShortcut.register('Control+Shift+Tab',()=>{prevTab();});
     globalShortcut.register('Control+]',()=>{nextTab();});
     globalShortcut.register('Control+[',()=>{prevTab();});
-    globalShortcut.register('Alt+Right',()=>{nextTab();});
-    globalShortcut.register('Alt+Left',()=>{prevTab();});
+    // The standard browser keys for switching tabs. (Alt+Left/Right used to
+    // switch sites; they are now page back/forward, below.)
+    globalShortcut.register('Control+PageDown',()=>{nextTab();});
+    globalShortcut.register('Control+PageUp',()=>{prevTab();});
   }
+
+  // Standard browser keys for page back/forward.
+  globalShortcut.register('Alt+Left',()=>{historyGo('back');});
+  globalShortcut.register('Alt+Right',()=>{historyGo('forward');});
+  globalShortcut.register('Alt+Home',()=>{historyHome();});
   
   globalShortcut.register('F10',toggleHidden);
   globalShortcut.register('Control+H',toggleHidden);

kiosk-app/preload.js

@@ -115,6 +115,24 @@ ipcRenderer.on('keyboard-button-enabled',(event,enabled)=>{
   }
 });
 
+// On-screen back / home / forward buttons (top middle, half transparent) - an
+// option for screens with no keyboard or mouse side buttons.
+let historyButtonsEnabled=false;
+let historyBar=null;
+let historyBarHideTimer=null;
+let historyOpacity=0.5;   // 0.1 - 1.0, from the "opacity" setting (percent)
+const historyHoverOpacity=()=>Math.min(1,historyOpacity+0.4);
+ipcRenderer.on('history-buttons-config',(event,cfg)=>{
+  historyButtonsEnabled=!!(cfg&&cfg.enabled===true);
+  const pct=Number(cfg&&cfg.opacity);
+  historyOpacity=(pct>=10&&pct<=100)?pct/100:0.5;
+  console.log('[HISTORY-BTN] Back/forward buttons enabled: '+historyButtonsEnabled+', opacity '+historyOpacity);
+  if(historyBar){
+    historyBar.style.opacity=String(historyOpacity);
+    if(!historyButtonsEnabled)historyBar.style.display='none';
+  }
+});
+
 ipcRenderer.on('nav-button-enabled',(event,enabled)=>{
   navButtonEnabled=enabled;
   console.log('[NAV-BTN] Navigation button enabled: '+enabled);
@@ -253,6 +271,57 @@ window.addEventListener('DOMContentLoaded',()=>{
     document.body.appendChild(navButton);
   }
 
+  // Back/forward buttons, top middle. The corners are often all taken by the
+  // menu, pause, keyboard and power buttons, so these sit between them.
+  const HISTORY_BAR_HIDE_DELAY=5000;
+  function createHistoryBar(){
+    if(historyBar)return;
+    historyBar=document.createElement('div');
+    historyBar.id='electron-history-bar';
+    historyBar.style.cssText=`
+      position:fixed;top:12px;left:50%;transform:translateX(-50%);
+      display:none;gap:18px;z-index:999999;opacity:${historyOpacity};
+      transition:opacity 0.15s;user-select:none;
+    `;
+    const makeButton=(label,direction,path)=>{
+      const b=document.createElement('div');
+      b.title=label;
+      b.innerHTML='<svg width="30" height="30" viewBox="0 0 24 24" fill="white"><path d="'+path+'"/></svg>';
+      b.style.cssText=`
+        width:56px;height:56px;background:rgba(44,62,80,0.9);
+        border:2px solid rgba(255,255,255,0.9);border-radius:50%;
+        display:flex;align-items:center;justify-content:center;cursor:pointer;
+      `;
+      b.addEventListener('click',(e)=>{
+        e.preventDefault();
+        e.stopPropagation();
+        ipcRenderer.send('history-nav',direction);
+        showHistoryBar();
+      });
+      return b;
+    };
+    historyBar.append(
+      makeButton('Back','back','M15.41 7.41L14 6l-6 6 6 6 1.41-1.41L10.83 12z'),
+      makeButton('Home (this site\'s start page)','home','M10 20v-6h4v6h5v-8h3L12 3 2 12h3v8z'),
+      makeButton('Forward','forward','M8.59 16.59L10 18l6-6-6-6-1.41 1.41L13.17 12z')
+    );
+    historyBar.addEventListener('mouseenter',()=>{historyBar.style.opacity=String(historyHoverOpacity());});
+    historyBar.addEventListener('mouseleave',()=>{historyBar.style.opacity=String(historyOpacity);});
+    document.body.appendChild(historyBar);
+  }
+
+  function showHistoryBar(){
+    if(!historyButtonsEnabled)return;
+    if(!historyBar)createHistoryBar();
+    if(!historyBar)return;
+    historyBar.style.display='flex';
+    if(historyBarHideTimer)clearTimeout(historyBarHideTimer);
+    historyBarHideTimer=setTimeout(()=>{
+      if(historyBar)historyBar.style.display='none';
+      historyBarHideTimer=null;
+    },HISTORY_BAR_HIDE_DELAY);
+  }
+
   // Power button in top-right corner (follows same show/hide logic as nav button)
   let powerButton=null;
   let powerButtonHideTimer=null;
@@ -597,6 +666,16 @@ window.addEventListener('DOMContentLoaded',()=>{
       ipcRenderer.send('power-action','reload');
     });
 
+    // Only offered when password protection is on (set in showPowerMenu).
+    const lockBtn=document.createElement('button');
+    lockBtn.id='power-menu-lock';
+    lockBtn.textContent='🔒 Lock now';
+    lockBtn.style.cssText=btnStyle+'background:#8e44ad;color:white;display:none;';
+    lockBtn.addEventListener('click',()=>{
+      hidePowerMenu();
+      ipcRenderer.send('power-action','lock');
+    });
+
     const cancelBtn=document.createElement('button');
     cancelBtn.textContent='Cancel';
     cancelBtn.style.cssText=btnStyle+'background:#7f8c8d;color:white;';
@@ -604,6 +683,7 @@ window.addEventListener('DOMContentLoaded',()=>{
       hidePowerMenu();
     });
 
+    buttonsDiv.appendChild(lockBtn);
     buttonsDiv.appendChild(shutdownBtn);
     buttonsDiv.appendChild(restartBtn);
     buttonsDiv.appendChild(reloadBtn);
@@ -639,6 +719,8 @@ window.addEventListener('DOMContentLoaded',()=>{
         }
         infoDiv.innerHTML=infoText;
       }
+      const lockBtn=document.getElementById('power-menu-lock');
+      if(lockBtn)lockBtn.style.display=(info&&info.canLock)?'':'none';
 
       powerMenu.style.display='flex';
       powerMenuVisible=true;
@@ -918,11 +1000,23 @@ window.addEventListener('DOMContentLoaded',()=>{
     if(navButtonEnabled){
       showNavButton();
     }
+    showHistoryBar();
 
     // Always show power button on user interaction
     showPowerButton();
   }
 
+  // Back/forward buttons also appear on plain mouse movement, for screens
+  // with a mouse but no touch (the other buttons wait for a click/keypress).
+  let lastHistoryMove=0;
+  document.addEventListener('mousemove',()=>{
+    if(!historyButtonsEnabled)return;
+    const now=Date.now();
+    if(now-lastHistoryMove<300)return;
+    lastHistoryMove=now;
+    showHistoryBar();
+  },{passive:true,capture:true});
+
   // Show pause button on any user interaction
   const pauseButtonTriggers=['mousedown','touchstart','keydown'];
   pauseButtonTriggers.forEach(eventType=>{

kiosk-app/wifi.html

@@ -95,7 +95,11 @@
   </div>
 
   <div id="wifi-step" class="hidden">
-    <div id="status">Checking…</div>
+    <div id="adapter-row" class="hidden">
+      <label for="adapter" style="margin-top: 0">WiFi adapter</label>
+      <select id="adapter"></select>
+    </div>
+    <div id="status" style="margin-top: 12px">Checking…</div>
 
     <div class="row" style="margin-top: 14px">
       <label style="margin: 0; flex: 1">Networks nearby</label>
@@ -139,6 +143,7 @@
     const {ipcRenderer} = require('electron');
     const $ = id => document.getElementById(id);
     let busy = false;
+    let adapter = '';   // the adapter picked in the dropdown ('' = let the helper choose)
 
     function request(action, extra) {
       return ipcRenderer.invoke('wifi-request', Object.assign({action}, extra || {}))
@@ -163,16 +168,47 @@
       return '▂';
     }
 
+    function adapterLabel(a) {
+      const kind = a.kind === 'usb' ? 'USB' : 'built-in';
+      return `${a.name} (${kind}) - ` + (a.connected ? `connected to "${a.ssid}"` : 'not connected');
+    }
+
+    // Fill the dropdown from the helper's adapter list. Shown only when
+    // there is more than one adapter; the choice sticks across refreshes.
+    function fillAdapters(r) {
+      const row = $('adapter-row');
+      const sel = $('adapter');
+      if (!r || !r.ok || !r.adapters || r.adapters.length === 0) { row.classList.add('hidden'); return r; }
+      const names = r.adapters.map(a => a.name);
+      if (!names.includes(adapter)) adapter = r.selected || names[0];
+      sel.textContent = '';
+      for (const a of r.adapters) {
+        const o = document.createElement('option');
+        o.value = a.name;
+        o.textContent = adapterLabel(a);
+        if (a.name === adapter) o.selected = true;
+        sel.appendChild(o);
+      }
+      row.classList.toggle('hidden', r.adapters.length < 2);
+      return r;
+    }
+
     async function refreshStatus() {
-      const s = await request('status');
+      const ad = fillAdapters(await request('ifaces'));
+      const s = await request('status', adapter ? {iface: adapter} : {});
       const box = $('status');
       if (!s.ok) { box.textContent = s.error || 'Status unavailable'; return; }
       if (!s.iface) { box.textContent = 'No WiFi adapter found'; return; }
       box.textContent = '';
       const line = (text) => { const d = document.createElement('div'); d.textContent = text; box.appendChild(d); };
-      line(s.connected ? `Connected to "${s.ssid}" - ${s.ip}` : 'Not connected');
+      if (ad && ad.ok && ad.adapters && ad.adapters.length > 1) {
+        // Every adapter at a glance, the selected one marked.
+        for (const a of ad.adapters) line((a.name === s.iface ? '▶ ' : '   ') + adapterLabel(a) + (a.ip ? ` - ${a.ip}` : ''));
+      } else {
+        line(s.connected ? `Connected to "${s.ssid}" - ${s.ip}` : 'Not connected');
+        line(`Adapter: ${s.iface}`);
+      }
       if (s.configured && s.configured !== s.ssid) line(`Saved network: "${s.configured}"`);
-      line(`Adapter: ${s.iface}`);
       if (!$('ssid').value && (s.ssid || s.configured)) $('ssid').value = s.ssid || s.configured;
     }
 
@@ -181,7 +217,7 @@
       setBusy(true);
       message('Scanning…', 'busy');
       const list = $('networks');
-      const r = await request('scan');
+      const r = await request('scan', adapter ? {iface: adapter} : {});
       list.textContent = '';
       if (!r.ok) {
         message(r.error, 'error');
@@ -217,7 +253,7 @@
       if (!ssid) { message('Pick a network or type its name', 'error'); return; }
       setBusy(true);
       message(`Connecting to "${ssid}" (up to 30 seconds)…`, 'busy');
-      const r = await request('connect', {ssid, password});
+      const r = await request('connect', {ssid, password, iface: adapter});
       if (r.ok) {
         message(`✓ Connected to "${r.ssid}" - ${r.ip}`, 'ok');
         $('password').value = '';
@@ -287,14 +323,19 @@
       message('');
       $('pin-step').classList.add('hidden');
       $('wifi-step').classList.remove('hidden');
-      refreshStatus();
+      refreshStatus().then(() => scan());
       loadRegion();
-      scan();
     }
 
     $('pin-ok').addEventListener('click', unlock);
     $('pin').addEventListener('keydown', e => { if (e.key === 'Enter') unlock(); });
     $('scan').addEventListener('click', scan);
+    $('adapter').addEventListener('change', () => {
+      adapter = $('adapter').value;
+      $('networks').innerHTML = '<li class="empty">Scanning…</li>';
+      refreshStatus();
+      scan();
+    });
     $('region-save').addEventListener('click', saveRegion);
     $('region-from-locale').addEventListener('click', countryFromLocale);
     $('connect').addEventListener('click', connect);

lib/config.sh

@@ -79,6 +79,8 @@ INACTIVITY_TIMEOUT=120
 ENABLE_PAUSE_BUTTON="true"
 ENABLE_KEYBOARD_BUTTON="true"
 ENABLE_NAV_BUTTON="true"
+ENABLE_HISTORY_BUTTONS="false"
+HISTORY_BUTTONS_OPACITY=50
 ENABLE_PASSWORD_PROTECTION="false"
 LOCKOUT_PASSWORD=""
 LOCKOUT_TIMEOUT=0
@@ -203,7 +205,7 @@ load_existing_config() {
     ALLOW_NAVIGATION=$(sudo -u "$KIOSK_USER" jq -r '.allowNavigation // "same-origin"' "$CONFIG_PATH" 2>/dev/null || echo "same-origin")
     SWIPE_MODE=$(sudo -u "$KIOSK_USER" jq -r '.swipeMode // "dual"' "$CONFIG_PATH" 2>/dev/null || echo "dual")
 
-    local pause_btn keyboard_btn nav_btn password_enabled boot_password
+    local pause_btn keyboard_btn nav_btn history_btn password_enabled boot_password
     pause_btn=$(sudo -u "$KIOSK_USER" jq -r '.enablePauseButton // true' "$CONFIG_PATH" 2>/dev/null)
     [[ "$pause_btn" == "true" ]] && ENABLE_PAUSE_BUTTON="true" || ENABLE_PAUSE_BUTTON="false"
 
@@ -213,6 +215,12 @@ load_existing_config() {
     nav_btn=$(sudo -u "$KIOSK_USER" jq -r '.enableNavButton // true' "$CONFIG_PATH" 2>/dev/null)
     [[ "$nav_btn" == "true" ]] && ENABLE_NAV_BUTTON="true" || ENABLE_NAV_BUTTON="false"
 
+    history_btn=$(sudo -u "$KIOSK_USER" jq -r '.enableHistoryButtons // false' "$CONFIG_PATH" 2>/dev/null)
+    [[ "$history_btn" == "true" ]] && ENABLE_HISTORY_BUTTONS="true" || ENABLE_HISTORY_BUTTONS="false"
+
+    HISTORY_BUTTONS_OPACITY=$(sudo -u "$KIOSK_USER" jq -r '.historyButtonsOpacity // 50' "$CONFIG_PATH" 2>/dev/null || echo "50")
+    [[ "$HISTORY_BUTTONS_OPACITY" =~ ^[0-9]+$ ]] && (( HISTORY_BUTTONS_OPACITY >= 10 && HISTORY_BUTTONS_OPACITY <= 100 )) || HISTORY_BUTTONS_OPACITY=50
+
     password_enabled=$(sudo -u "$KIOSK_USER" jq -r '.enablePasswordProtection // false' "$CONFIG_PATH" 2>/dev/null)
     [[ "$password_enabled" == "true" ]] && ENABLE_PASSWORD_PROTECTION="true" || ENABLE_PASSWORD_PROTECTION="false"
 
@@ -263,6 +271,9 @@ save_config() {
     local nav_btn_json="true"
     [[ "$ENABLE_NAV_BUTTON" == "false" ]] && nav_btn_json="false"
 
+    local history_btn_json="false"
+    [[ "$ENABLE_HISTORY_BUTTONS" == "true" ]] && history_btn_json="true"
+
     local password_json="false"
     [[ "$ENABLE_PASSWORD_PROTECTION" == "true" ]] && password_json="true"
 
@@ -301,6 +312,8 @@ save_config() {
         --argjson enablePauseButton "$pause_btn_json" \
         --argjson enableKeyboardButton "$keyboard_btn_json" \
         --argjson enableNavButton "$nav_btn_json" \
+        --argjson enableHistoryButtons "$history_btn_json" \
+        --argjson historyButtonsOpacity "${HISTORY_BUTTONS_OPACITY:-50}" \
         --argjson enablePasswordProtection "$password_json" \
         --arg lockoutPassword "${LOCKOUT_PASSWORD:-}" \
         --argjson lockoutTimeout "${LOCKOUT_TIMEOUT:-0}" \
@@ -314,7 +327,7 @@ save_config() {
         --arg autheliaURL "${AUTHELIA_URL:-}" \
         --arg autheliaUsername "${AUTHELIA_USERNAME:-}" \
         --arg autheliaEncryptedPassword "${AUTHELIA_ENCRYPTED_PASSWORD:-}" \
-        '. + {autoswitch:$autoswitch,enableTouch:$enableTouch,dualSwipe:$dualSwipe,swipeMode:$swipeMode,allowNavigation:$allowNavigation,homeTabIndex:$homeTabIndex,inactivityTimeout:$inactivityTimeout,enablePauseButton:$enablePauseButton,enableKeyboardButton:$enableKeyboardButton,enableNavButton:$enableNavButton,enablePasswordProtection:$enablePasswordProtection,lockoutPassword:$lockoutPassword,lockoutTimeout:$lockoutTimeout,lockoutAtTime:$lockoutAtTime,lockoutActiveStart:$lockoutActiveStart,lockoutActiveEnd:$lockoutActiveEnd,requirePasswordOnBoot:$requirePasswordOnBoot,lockoutCodeType:$lockoutCodeType,bootPassword:$bootPassword,bootCodeType:$bootCodeType,autheliaURL:$autheliaURL,autheliaUsername:$autheliaUsername,autheliaEncryptedPassword:$autheliaEncryptedPassword,tabs:[]}' > "$tmp"
+        '. + {autoswitch:$autoswitch,enableTouch:$enableTouch,dualSwipe:$dualSwipe,swipeMode:$swipeMode,allowNavigation:$allowNavigation,homeTabIndex:$homeTabIndex,inactivityTimeout:$inactivityTimeout,enablePauseButton:$enablePauseButton,enableKeyboardButton:$enableKeyboardButton,enableNavButton:$enableNavButton,enableHistoryButtons:$enableHistoryButtons,historyButtonsOpacity:$historyButtonsOpacity,enablePasswordProtection:$enablePasswordProtection,lockoutPassword:$lockoutPassword,lockoutTimeout:$lockoutTimeout,lockoutAtTime:$lockoutAtTime,lockoutActiveStart:$lockoutActiveStart,lockoutActiveEnd:$lockoutActiveEnd,requirePasswordOnBoot:$requirePasswordOnBoot,lockoutCodeType:$lockoutCodeType,bootPassword:$bootPassword,bootCodeType:$bootCodeType,autheliaURL:$autheliaURL,autheliaUsername:$autheliaUsername,autheliaEncryptedPassword:$autheliaEncryptedPassword,tabs:[]}' > "$tmp"
 
     if [[ ${#URLS[@]} -gt 0 ]]; then
         for idx in "${!URLS[@]}"; do

lib/provision.sh

@@ -198,7 +198,12 @@ provision_configure_display() {
     # a fresh kiosk ships with; menus/advanced_virtual_consoles.sh can
     # flip this later, and does below if declined at the end of setup.
     provision_install_file "etc/X11/xorg.conf.d/99-finger-libinput.conf" /etc/X11/xorg.conf.d/99-finger-libinput.conf
-    provision_install_file "etc/X11/xorg.conf.d/10-serverflags.conf" /etc/X11/xorg.conf.d/10-serverflags.conf
+    # Only on first install: this file is also where Advanced -> Virtual
+    # Consoles records the admin's choice, and Upgrade re-runs this step -
+    # overwriting it would silently turn consoles back off (or on).
+    if [[ ! -f /etc/X11/xorg.conf.d/10-serverflags.conf ]]; then
+        provision_install_file "etc/X11/xorg.conf.d/10-serverflags.conf" /etc/X11/xorg.conf.d/10-serverflags.conf
+    fi
 
     provision_install_file "usr/local/bin/kiosk-mirror-display.sh" /usr/local/bin/kiosk-mirror-display.sh 755
     provision_install_file "usr/local/bin/kiosk-audio-route.sh" /usr/local/bin/kiosk-audio-route.sh 755
@@ -242,6 +247,23 @@ provision_install_wifi_helper() {
         log_warning "Couldn't set up the kiosk WiFi screen's permission - Ctrl+Alt+Super+W won't be able to connect"
     fi
     rm -f "$tmp"
+
+    # The same helper through a root-owned socket, which is what the kiosk
+    # app uses first: it can end up running with the "no new privileges"
+    # flag, and sudo then refuses to run as root. The sudoers rule above
+    # stays as a fallback. Socket access is limited to the kiosk user's
+    # group (0660) - the same reach as the sudoers rule.
+    provision_install_file "usr/local/bin/kiosk-wifi-helper-socket" "$BIN_DIR/kiosk-wifi-helper-socket" 755
+    provision_install_file "etc/systemd/system/kiosk-wifi-helper@.service" "$SYSTEMD_DIR/kiosk-wifi-helper@.service"
+    provision_install_file "etc/systemd/system/kiosk-wifi-helper.socket" "$SYSTEMD_DIR/kiosk-wifi-helper.socket"
+    local kiosk_group
+    kiosk_group=$(id -gn "$KIOSK_USER" 2>/dev/null || echo "$KIOSK_USER")
+    sudo sed -i "s/@KIOSK_GROUP@/${kiosk_group}/" "$SYSTEMD_DIR/kiosk-wifi-helper.socket"
+    sudo systemctl daemon-reload
+    if ! sudo systemctl enable kiosk-wifi-helper.socket &>/dev/null || ! sudo systemctl restart kiosk-wifi-helper.socket; then
+        log_warning "Couldn't start the kiosk WiFi helper socket - the WiFi screen will fall back to sudo"
+    fi
+
     # Flaky cheap dongles (RTL8188CUS...) need WiFi power saving off.
     provision_install_file "etc/udev/rules.d/70-kiosk-wifi-power.rules" /etc/udev/rules.d/70-kiosk-wifi-power.rules
     sudo udevadm control --reload-rules 2>/dev/null || true
@@ -306,7 +328,7 @@ provision_configure_webui() {
         return 0
     fi
 
-    local port="8090"
+    local port="8888"
     webui_write_env_file "$port"
     webui_write_unit_file
     webui_write_helper_script
@@ -402,8 +424,8 @@ run_first_time_install() {
     echo "  - Audio support (PipeWire)"
     echo "  - Time synchronization (NTP)"
     echo "  - Web UI (browser-based Sites/Display/Lockout editor, plus"
-    echo "    addon install/reconfigure and Update - no login of its own,"
-    echo "    see Addons -> Web UI)"
+    echo "    addon install/reconfigure and Update - asks for the kiosk's"
+    echo "    PIN/password when password protection is on, see Addons -> Web UI)"
     echo
     echo "OPTIONAL (configure after install, via Addons):"
     echo "  - Lyrion Music Server (LMS) / Squeezelite"

library/.gitignore

@@ -3,6 +3,3 @@
 # Extra CA certificates dropped in for building behind a proxy
 koha/certs/*.crt
 quickadd/certs/*.crt
-# Generated by install.sh --domain
-Caddyfile
-caddy-root.crt

library/README.md

@@ -12,9 +12,9 @@ it never overwrites your `.env` (passwords) or your data.
 
 | What | Address | Login |
 |---|---|---|
-| **Your library**: add books, find a book, people, lending, labels, settings | `http://<this machine>:8098` | `admin` and the generated password |
-| **Add books** (scan an ISBN, or use the phone camera) | `http://<this machine>:8098/add/` | same login (asked once more) |
-| **Public catalogue** (search only, for a kiosk or visitors) | `http://<this machine>:8097` | none |
+| **Your library**: add books, find a book, people, lending, labels, settings | `http://<this machine>:8081` | `admin` and the generated password |
+| **Add books** (scan an ISBN, or use the phone camera) | `http://<this machine>:8081/add/` | same login (asked once more) |
+| **Public catalogue** (search only, for a kiosk or visitors) | `http://<this machine>:8080` | none |
 
 For home use you only need the first address: sign in to **Your library**, and use the **Add books**
 button on its home page. The Add books page has a **Find a book** tab (title, author or ISBN, with the
@@ -24,7 +24,7 @@ staff sites the same URL shapes, so they cannot share one address; Add books can
 
 Ports move up to the next free number if one is taken; the final addresses are printed
 at the end and by `sudo ./install.sh --status`. Add books is also reachable directly on its own port
-(`8099`), which is handy behind a proxy but not needed otherwise.
+(`8082`), which is handy behind a proxy but not needed otherwise.
 
 ## What it is made of
 
@@ -210,11 +210,6 @@ Staff who are signed in to the library site (and allowed to edit the catalogue)
 
 ## The home page (the Room for Books site at `/add/`)
 
-**One address.** `http://<ip>:<port>/` (and later `https://your-domain/` behind Caddy) opens this page; there is no separate
-port to remember. Koha's own staff screens live on the same address at `/cgi-bin/koha/mainpage.pl`, reached from the menu
-(*Koha (full staff screens)*). Everyone signs in at the same prompt: staff with the admin login, borrowers with their card number
-and password, the guest with the guest login.
-
 One simple page: a **Look up** box (books by title, author or ISBN, and people by name or card number), four big buttons
 (**Check out**, **Return**, **Add books**, **Add a person**) and **Recently added** books with their covers. The **menu**
 (top right) holds the rest: browse all books, lend / return, people and library cards, barcodes and settings, export / import,
@@ -290,27 +285,3 @@ points, quiz number and interest level fill in by themselves; check them and pre
 The book page's AR box has **Open beside this page** (a pop-up window next to the book) and **Show it here** (AR BookFind inside the
 page; some browsers block its cookies inside another page, then use the pop-up). Either copies the title first so you can paste
 it into AR's search; AR's own page cannot be pre-filled from here.
-
-### Same ports on every install
-
-New installs of this stack use the same three ports whether you install it from the kiosk add-on or from `ubuntu-post-install`:
-**8098** is the one to use (the Room for Books home page, with Koha behind the menu), 8099 is Add books direct, and 8097 is the
-public catalogue, which stays closed. If one is taken, the next free port is used and the installer prints it. Existing installs
-keep the ports they already have.
-
-## HTTPS with Caddy (and the live camera scanner)
-
-Phones only allow a live camera on an HTTPS page. One command adds Caddy in front of the library:
-
-```bash
-# a real domain that points at this machine (ports 80 and 443 reachable): the certificate is automatic
-sudo ./install.sh --domain library.example.com
-
-# a name only your own network knows (library.home.lan): Caddy makes its own certificate authority
-sudo ./install.sh --domain library.home.lan --lan-tls     # then install caddy-root.crt on your phones
-```
-
-It writes `Caddyfile`, starts a `caddy` container (the compose `caddy` profile), sets `STAFF_URL=https://<name>` and closes the plain-HTTP
-ports to the network (`BIND_ADDR=127.0.0.1`; add `--keep-direct` to leave them open). Then use `https://<name>/`: everything works
-as before, and the **Live scan** buttons appear on Add books and Lend / return. Behind your own Caddy instead, point it at the library
-port: `library.example.com { reverse_proxy <this machine>:8098 }` and set `STAFF_URL=https://library.example.com` in `.env`.

library/docker-compose.yml

@@ -46,8 +46,8 @@ services:
       KOHA_ITEM_TYPES: ${ITEM_TYPES:-}
     ports:
       # The public catalogue is off by default (loopback only); set OPAC_BIND=0.0.0.0 in .env to expose it.
-      - "${OPAC_BIND:-127.0.0.1}:${OPAC_PORT:-8097}:80"
-      - "${BIND_ADDR:-0.0.0.0}:${STAFF_PORT:-8098}:8081"
+      - "${OPAC_BIND:-127.0.0.1}:${OPAC_PORT:-8080}:80"
+      - "${BIND_ADDR:-0.0.0.0}:${STAFF_PORT:-8081}:8081"
     volumes:
       - koha-data:/var/lib/koha
 
@@ -67,36 +67,17 @@ services:
       VIEWER_USER: ${VIEWER_USER:-guest}
       VIEWER_PASSWORD: ${VIEWER_PASSWORD:-}
       KOHA_LIBRARY: ${LIBRARY_CODE:-HOME}
-      OPAC_PORT: ${OPAC_PORT:-8097}
-      STAFF_PORT: ${STAFF_PORT:-8098}
+      OPAC_PORT: ${OPAC_PORT:-8080}
+      STAFF_PORT: ${STAFF_PORT:-8081}
       OPAC_URL: ${OPAC_URL:-}
       STAFF_URL: ${STAFF_URL:-}
       QUICKADD_SOURCES: ${QUICKADD_SOURCES:-z3950:lx2.loc.gov:210/LCDB,openlibrary}
     ports:
-      - "${BIND_ADDR:-0.0.0.0}:${QUICKADD_PORT:-8099}:8082"
+      - "${BIND_ADDR:-0.0.0.0}:${QUICKADD_PORT:-8082}:8082"
     volumes:
       - quickadd-data:/data
 
-  # HTTPS with an automatic certificate (and so the live camera on phones): only started when
-  # `./install.sh --domain <name>` has set COMPOSE_PROFILES=caddy in .env.
-  caddy:
-    profiles: ["caddy"]
-    image: caddy:2
-    container_name: library-caddy
-    restart: unless-stopped
-    depends_on:
-      - koha
-    ports:
-      - "80:80"
-      - "443:443"
-    volumes:
-      - ./Caddyfile:/etc/caddy/Caddyfile:ro
-      - caddy-data:/data
-      - caddy-config:/config
-
 volumes:
   db-data:
   koha-data:
   quickadd-data:
-  caddy-data:
-  caddy-config:

library/install.sh

@@ -5,16 +5,13 @@
 #   sudo ./install.sh --status        # show URLs and container health
 #   sudo ./install.sh --update        # rebuild with the latest Koha and restart
 #   sudo ./install.sh --stop | --start
-#   sudo ./install.sh --domain library.example.com           # HTTPS via Caddy (certificate is automatic)
-#   sudo ./install.sh --domain library.home.lan --lan-tls    # HTTPS for a name only your network knows (own CA)
-#       add --keep-direct to also keep the plain-HTTP ports open on the network
 #
 # Optional environment variables:
 #   LIBRARY_NAME="Smith Family Library"   name shown on the catalogue
 #   LIBRARY_CODE=HOME                     short code for the library (letters/digits)
 #   SHELVES="LR=Living room;BR=Bedroom"   shelves/rooms to offer (first install only)
 #   ITEM_TYPES="CD=Compact disc"          extra item types (first install only)
-#   OPAC_PORT=8097 STAFF_PORT=8098        preferred host ports (next free is used)
+#   OPAC_PORT=8080 STAFF_PORT=8081        preferred host ports (next free is used)
 #   EXTRA_CA=/path/to/proxy-ca.crt        trust an extra CA while building
 set -euo pipefail
 
@@ -82,10 +79,6 @@ show_status() {
     fi
     dc ps
     echo
-    if [ -n "${DOMAIN:-}" ]; then
-        echo "  Your library (HTTPS): https://$DOMAIN     <- use this one: the live camera scanner needs it"
-        echo "      (Koha's own screens: https://$DOMAIN/cgi-bin/koha/mainpage.pl, or the menu inside)"
-    fi
     echo "  Your library:        http://$ip:$STAFF_PORT"
     echo "      sign in here: find a book, add books (scan an ISBN or use the phone camera), lending, labels, people"
     echo "  Admin login:         $ADMIN_USER  /  $ADMIN_PASSWORD   (also stored in $HERE/.env)"
@@ -97,52 +90,6 @@ show_status() {
     echo
 }
 
-# --- HTTPS (Caddy) options --------------------------------------------------------
-DOMAIN_ARG="" LAN_TLS=0 KEEP_DIRECT=0 ACTION=""
-while [ $# -gt 0 ]; do
-    case "$1" in
-        --domain)      DOMAIN_ARG="${2:-}"; [ -n "$DOMAIN_ARG" ] || { c_err "--domain needs a name"; exit 1; }; shift 2 ;;
-        --lan-tls)     LAN_TLS=1; shift ;;
-        --keep-direct) KEEP_DIRECT=1; shift ;;
-        *)             ACTION="${ACTION:+$ACTION }$1"; shift ;;
-    esac
-done
-set -- $ACTION
-if [ -n "$DOMAIN_ARG" ] && ! printf '%s' "$DOMAIN_ARG" | grep -Eq '^[A-Za-z0-9]([A-Za-z0-9.-]*[A-Za-z0-9])?$'; then
-    c_err "That does not look like a host name: $DOMAIN_ARG"; exit 1
-fi
-
-# Write (or replace) KEY=VALUE in .env
-env_set() { if grep -q "^$1=" .env; then sed -i "s|^$1=.*|$1=$2|" .env; else echo "$1=$2" >> .env; fi; }
-
-configure_caddy() {
-    local name="$DOMAIN_ARG"
-    # Caddy needs 80 and 443 (it is not moved to other ports: browsers expect these).
-    if ! dc ps --status running --services 2>/dev/null | grep -qx caddy; then
-        for p in 80 443; do
-            port_in_use "$p" && { c_err "Port $p is already in use on this machine - Caddy needs it. Stop what is using it, or use your own reverse proxy (see README)."; exit 1; }
-        done
-    fi
-    {
-        echo "# Generated by install.sh --domain - Caddy fetches and renews the certificate by itself."
-        echo "$name {"
-        [ "$LAN_TLS" = 1 ] && echo "	tls internal"
-        echo "	encode zstd gzip"
-        echo "	reverse_proxy koha:8081"
-        echo "}"
-    } > Caddyfile
-    env_set DOMAIN "$name"
-    env_set COMPOSE_PROFILES caddy
-    env_set STAFF_URL "https://$name"
-    [ "$KEEP_DIRECT" = 1 ] || env_set BIND_ADDR 127.0.0.1
-    c_ok "Caddy will serve https://$name"
-    if [ "$LAN_TLS" = 1 ]; then
-        c_info "Own-CA certificate: phones must trust Caddy's root, which is copied to $HERE/caddy-root.crt after start."
-    else
-        c_info "The name must point at this machine (DNS) and ports 80/443 must reach it, or the certificate cannot be issued."
-    fi
-}
-
 case "${1:-}" in
     --status) show_status; exit 0 ;;
     --stop)   dc stop; exit 0 ;;
@@ -170,9 +117,9 @@ LIBRARY_CODE=${LIBRARY_CODE:-HOME}
 SHELVES="${SHELVES:-}"
 ITEM_TYPES="${ITEM_TYPES:-}"
 TZ=${TZ_NOW}
-OPAC_PORT=$(free_port "${OPAC_PORT:-8097}")
-STAFF_PORT=$(free_port "${STAFF_PORT:-8098}")
-QUICKADD_PORT=$(free_port "${QUICKADD_PORT:-8099}")
+OPAC_PORT=$(free_port "${OPAC_PORT:-8080}")
+STAFF_PORT=$(free_port "${STAFF_PORT:-8081}")
+QUICKADD_PORT=$(free_port "${QUICKADD_PORT:-8082}")
 BIND_ADDR=${BIND_ADDR:-0.0.0.0}
 # The public catalogue is off by default: 127.0.0.1 = not reachable from the network.
 OPAC_BIND=${OPAC_BIND:-127.0.0.1}
@@ -192,7 +139,7 @@ else
     c_info "Re-using existing .env"
     # Settings added in later versions: append them to an older .env.
     if ! grep -q '^QUICKADD_PORT=' .env; then
-        echo "QUICKADD_PORT=$(free_port 8099)" >> .env
+        echo "QUICKADD_PORT=$(free_port 8082)" >> .env
     fi
     if ! grep -q '^VIEWER_PASSWORD=' .env; then
         { echo "VIEWER_USER=guest"; echo "VIEWER_PASSWORD=$(rand 14)"; } >> .env
@@ -205,8 +152,6 @@ else
     fi
 fi
 
-[ -n "$DOMAIN_ARG" ] && configure_caddy
-
 if [ -n "${EXTRA_CA:-}" ]; then
     cp "$EXTRA_CA" koha/certs/extra-ca.crt
     cp "$EXTRA_CA" quickadd/certs/extra-ca.crt
@@ -225,7 +170,7 @@ with_retry dc up -d
 c_info "First start installs the database - waiting until Koha reports healthy..."
 for i in $(seq 1 180); do
     health="$(docker inspect -f '{{if .State.Health}}{{.State.Health.Status}}{{else}}none{{end}}' library-koha 2>/dev/null || echo missing)"
-    if [ "$health" = healthy ] && curl -fsS -o /dev/null -m 5 "http://127.0.0.1:${QUICKADD_PORT:-8099}/healthz" 2>/dev/null; then READY=1; break; fi
+    if [ "$health" = healthy ] && curl -fsS -o /dev/null -m 5 "http://127.0.0.1:${QUICKADD_PORT:-8082}/healthz" 2>/dev/null; then READY=1; break; fi
     # One restart is tolerated (Docker's restart policy); a crash loop is not.
     if [ "$(docker inspect -f '{{.RestartCount}}' library-koha 2>/dev/null || echo 99)" -ge 3 ]; then
         c_err "library-koha keeps crashing - see: docker logs library-koha"; exit 1
@@ -235,12 +180,5 @@ done
 [ "${READY:-0}" = 1 ] || { c_err "Timed out - see: docker logs -f library-koha"; exit 1; }
 
 c_ok "Your library is running."
-if [ -n "${DOMAIN:-}" ] && grep -q '^	tls internal' Caddyfile 2>/dev/null; then
-    for i in $(seq 1 20); do
-        docker cp library-caddy:/data/caddy/pki/authorities/local/root.crt "$HERE/caddy-root.crt" >/dev/null 2>&1 && break
-        sleep 2
-    done
-    [ -f "$HERE/caddy-root.crt" ] && c_info "Install this certificate on phones/computers that should trust https://$DOMAIN: $HERE/caddy-root.crt"
-fi
 echo
 show_status

library/koha/entrypoint.sh

@@ -78,9 +78,6 @@ if [ ! -d "/etc/koha/sites/$INST" ]; then
         cat > /etc/koha/apache-quickadd.conf << APACHE
 <IfModule mod_proxy_http.c>
     RedirectMatch ^/add\$ /add/
-    # The bare address (http://ip:port/ or https://your-domain/) opens the Room for Books home page;
-    # Koha's own staff screens stay at /cgi-bin/koha/mainpage.pl.
-    RedirectMatch ^/\$ /add/
     ProxyPass /add/ ${KOHA_QUICKADD_URL%/}/
     ProxyPassReverse /add/ ${KOHA_QUICKADD_URL%/}/
 ${SSO_BLOCK}

library/quickadd/app.py

@@ -985,8 +985,7 @@ def _loan_rows(cos):
         due = (c.get("due_date") or "")[:10]
         rows.append({"checkout_id": c["checkout_id"], "patron_id": c["patron_id"], "barcode": it.get("external_id") or "",
                      "biblio_id": it.get("biblio_id"), "title": t[0], "author": t[1], "isbn": t[2], "due": due,
-                     "overdue": bool(due) and due < today, "renewals": c.get("renewals_count") or 0,
-                     "checkout_date": (c.get("checkout_date") or "")[:10]})
+                     "overdue": bool(due) and due < today, "renewals": c.get("renewals_count") or 0})
     return rows
 
 
@@ -1720,7 +1719,6 @@ class Handler(BaseHTTPRequestHandler):
         self.send_header("Content-Length", str(len(body)))
         self.send_header("Cache-Control", "no-store")
         self.send_header("X-Content-Type-Options", "nosniff")
-        self.send_header("Permissions-Policy", "camera=(self), microphone=()")
         self.send_header("Referrer-Policy", "no-referrer")
         self.send_header("Content-Security-Policy",
                          "default-src 'self'; img-src 'self' https: data:; "
@@ -1755,11 +1753,7 @@ class Handler(BaseHTTPRequestHandler):
             # Otherwise: a patron signing in with their card number (or userid) and password.
             addr = self.client_address[0]
             if SSO_SECRET and hmac.compare_digest(self.headers.get("X-Quickadd-Proxy", "").encode(), SSO_SECRET.encode()):
-                # Behind Caddy the list reads "<visitor>, <Caddy>" (Caddy adds the visitor, the staff site's web server
-                # adds Caddy), so the visitor is the one before the last. Used only to count failed sign-ins per
-                # visitor, never to vouch for anyone.
-                hops = [h.strip() for h in self.headers.get("X-Forwarded-For", "").split(",") if h.strip()]
-                addr = (hops[-2] if len(hops) >= 2 else hops[-1]) if hops else addr
+                addr = self.headers.get("X-Forwarded-For", "").split(",")[-1].strip() or addr
             self.addr = addr
             pid = patron_login(u, p, addr)
             if pid:

library/quickadd/index.html

@@ -201,7 +201,6 @@
       <button class="primary" type="submit">Look up</button>
     </form>
     <div id="homeresults" aria-live="polite"></div>
-    <div id="homemine" hidden></div>
     <div class="bigacts" id="homeacts">
       <a class="bigact" href="#lend"><strong>Check out</strong><span>Scan a card, then the books</span></a>
       <a class="bigact" href="#return"><strong>Return</strong><span>Scan the books coming back</span></a>
@@ -1244,37 +1243,21 @@
   };
   $('printcard').onclick = () => window.print();
 
-  // A borrower's loans: title, who wrote it, when it was borrowed, when it is due (days left / overdue), renewals, Renew.
-  function renderLoans(target, r, reload) {
+  async function loadMine() {
+    let r; try { r = await api('/api/me'); } catch (e) { r = {}; }
+    if (!r.loans) { $('meloans').textContent = r.message || 'Could not load your books.'; return; }
+    $('mename').textContent = r.name; $('mecard').textContent = r.card;
     const today = new Date(); today.setHours(12, 0, 0, 0);
     const rows = r.loans.map(l => {
       const days = Math.round((new Date(l.due + 'T12:00:00') - today) / 86400000);
       const when = l.overdue ? 'Overdue by ' + (-days) + (days === -1 ? ' day' : ' days') : days === 0 ? 'Due today' : 'Due ' + fmtDue(l.due) + ' (in ' + days + (days === 1 ? ' day)' : ' days)');
       const ren = el('button', { type: 'button' }, 'Renew');
       ren.onclick = async () => { ren.disabled = true; const x = await api('/api/me/renew', { checkout_id: l.checkout_id });
-        if (x.status === 'renewed') reload(); else { ren.disabled = false; alert(x.message || 'That one cannot be renewed (the limit is reached, or someone is waiting for it).'); } };
-      const facts = ['Borrowed ' + fmtDue(l.checkout_date), l.renewals ? 'renewed ' + (l.renewals === 1 ? 'once' : l.renewals + ' times') : ''].filter(Boolean).join(' · ');
-      return el('div', { className: 'loan' }, el('span', { className: 't' }, el('a', { href: '#book/' + l.biblio_id }, l.title),
-          el('div', { className: 'small' }, [l.author, facts].filter(Boolean).join(' · '))),
-        el('span', { className: 'chip ' + (l.overdue ? 'late' : days <= 3 ? 'out' : 'in') }, when), ren);
+        if (x.status === 'renewed') loadMine(); else { ren.disabled = false; alert(x.message || 'That one cannot be renewed.'); } };
+      return el('div', { className: 'loan' }, el('span', { className: 't' }, el('a', { href: '#book/' + l.biblio_id }, l.title), el('div', { className: 'small' }, l.author)),
+        el('span', { className: 'chip ' + (l.overdue ? 'late' : 'in') }, when), ren);
     });
-    const late = r.loans.filter(l => l.overdue).length;
-    const head = r.loans.length ? 'You have ' + r.loans.length + (r.loans.length === 1 ? ' book' : ' books') + ' out' + (late ? ', ' + late + ' overdue' : '') + '.' : 'You have nothing checked out right now.';
-    target.replaceChildren(el('div', { className: 'card ' + (late ? 'warn' : 'ok') }, el('div', { className: 'body' }, el('strong', {}, head))), ...rows);
-  }
-  async function loadMine() {
-    let r; try { r = await api('/api/me'); } catch (e) { r = {}; }
-    if (!r.loans) { $('meloans').textContent = r.message || 'Could not load your books.'; return; }
-    $('mename').textContent = r.name; $('mecard').textContent = r.card;
-    renderLoans($('meloans'), r, loadMine);
-  }
-  async function loadHomeMine() {
-    let r; try { r = await api('/api/me'); } catch (e) { return; }
-    if (!r.loans) return;
-    const box = $('homemine'); box.hidden = false;
-    const inner = el('div', {});
-    box.replaceChildren(el('h2', {}, 'Hello, ' + r.name), inner);
-    renderLoans(inner, r, loadHomeMine);
+    $('meloans').replaceChildren(...(rows.length ? rows : [el('div', { className: 'card ok' }, el('div', { className: 'body' }, 'You have nothing checked out right now.'))]));
   }
   $('mepwform').onsubmit = async ev => {
     ev.preventDefault(); const f = ev.target; const r = await api('/api/me/password', Object.fromEntries(new FormData(f)));
@@ -1341,7 +1324,7 @@
     const names = { home: 'Home', library: 'Browse', book: 'Book', add: 'Add books', lend: 'Lend / return', people: 'People', card: 'Library card', cards: 'Library cards', mine: 'My books' };
     document.title = (view === 'home' ? '' : names[view] + ' - ') + 'Room for Books';
     window.scrollTo(0, 0);
-    if (view === 'home') { $('homeacts').hidden = viewer; $('patronacts').hidden = !isPatron; $('homemine').hidden = !isPatron; if (isPatron) loadHomeMine(); loadRecent(); if (h === 'find') $('hq').focus(); }
+    if (view === 'home') { $('homeacts').hidden = viewer; $('patronacts').hidden = !isPatron; loadRecent(); if (h === 'find') $('hq').focus(); }
     else if (view === 'book') loadBook(m[1]);
     else if (view === 'mine') loadMine();
     else if (view === 'add') { if (h === 'settings') { $('settings').open = true; $('settings').scrollIntoView(); } else $('code').focus(); }
@@ -1364,8 +1347,8 @@
     // The public catalogue is off by default: only link to it when a public address was configured.
     $('lnk-opac').hidden = !s.opac_url;
     if (s.opac_url) $('lnk-opac').href = s.opac_url + '/';
-    $('lnk-staff').href = staffRoot() + '/cgi-bin/koha/mainpage.pl';
-    $('lnk-staff').hidden = viewer; $('footkoha').href = staffRoot() + '/cgi-bin/koha/mainpage.pl';
+    $('lnk-staff').href = staffRoot() + '/';
+    $('lnk-staff').hidden = viewer; $('footkoha').href = staffRoot() + '/';
     $('footname').textContent = 'Room for Books' + (s.library_name ? ' · ' + s.library_name : '');
     $('lnk-labels').href = staffRoot() + '/cgi-bin/koha/labels/label-edit-range.pl';
     if (s.locations && s.locations.length) {

menus/addon_webui.sh

@@ -30,12 +30,15 @@
 # Factory Reset, Virtual Consoles, Emergency Hotspot, Clone Settings)
 # stays terminal-only for now.
 #
-# No login of its own, by design: this addon assumes it'll be put behind
-# a reverse proxy (e.g. Caddy) with Authelia forward-auth in front, the
-# same way other self-hosted apps get protected - Authelia integration
-# is explicitly out of scope for this repo (Authelia runs elsewhere).
-# Direct LAN access with no proxy in front has no authentication at all -
-# treat it the same as SSH access to this kiosk, which is also the
+# Login: when the kiosk's password protection is on (Core Settings ->
+# Password Protection & Lockout), the Web UI asks for the same PIN/password
+# the lock screen uses (webui/lib/auth.js). With protection off it has no
+# login, so on a network you don't fully trust, turn protection on or put
+# it behind a reverse proxy (e.g. Caddy) with Authelia forward-auth in
+# front, the same way other self-hosted apps get protected - Authelia
+# integration is explicitly out of scope for this repo (Authelia runs
+# elsewhere). Direct LAN access with protection off has no authentication
+# at all - treat it the same as SSH access to this kiosk, which is also the
 # access level the privileged helper effectively grants if reached
 # without a proxy in front: bounded to its fixed action list, not a
 # root shell, but real system mutation all the same.
@@ -59,9 +62,9 @@ webui_is_active() {
 
 webui_port() {
     if sudo test -f "$WEBUI_ENV_DIR/webui.env" 2>/dev/null; then
-        sudo grep -oP '^PORT=\K.*' "$WEBUI_ENV_DIR/webui.env" 2>/dev/null || echo "8090"
+        sudo grep -oP '^PORT=\K.*' "$WEBUI_ENV_DIR/webui.env" 2>/dev/null || echo "8888"
     else
-        echo "8090"
+        echo "8888"
     fi
 }
 
@@ -274,14 +277,15 @@ action_webui_install() {
     echo "This installs a small web app for editing Sites & Page Timing,"
     echo "Display & Interaction, and Password Protection & Lockout from a"
     echo "browser - plus installing/reconfiguring CUPS, LMS/Squeezelite,"
-    echo "and Asterisk Intercom, and checking for updates. It has no login"
-    echo "of its own - put it behind your own reverse proxy (e.g. Caddy +"
-    echo "Authelia) if it needs to be reachable beyond a trusted LAN."
+    echo "and Asterisk Intercom, and checking for updates. When the kiosk's"
+    echo "password protection is on it asks for the same PIN/password; when it"
+    echo "is off there is no login - turn protection on, or put it behind your"
+    echo "own reverse proxy (e.g. Caddy + Authelia), beyond a trusted LAN."
     echo
     ask_yes_no "Install the Web UI?" "n" || { echo "Cancelled"; return; }
 
     local port
-    port=$(ask_integer "Port to listen on" "8090" 1024 65535)
+    port=$(ask_integer "Port to listen on" "8888" 1024 65535)
 
     echo "Installing app files and npm dependencies..."
     if ! webui_install_app_files; then
@@ -321,6 +325,8 @@ action_webui_reconfigure() {
     webui_write_env_file "$port"
     sudo systemctl restart kiosk-webui
     sudo ufw allow "${port}/tcp" comment 'Kiosk Web UI' 2>/dev/null || true
+    # The old port is no longer used - close it.
+    sudo ufw delete allow "${current_port}/tcp" 2>/dev/null || true
     log_success "Web UI now listening on port ${port}"
 }
 

menus/advanced_upgrade.sh

@@ -121,6 +121,18 @@ action_upgrade() {
             provision_configure_display
             provision_configure_firewall
             provision_configure_power_management
+
+            # The Web UI runs from its own copy (/opt/kiosk-webui), not from
+            # this checkout - refresh it too, or new settings never show up
+            # there. Port, service and sudo rules are left as they are.
+            if [[ -f "$SYSTEMD_DIR/kiosk-webui.service" ]]; then
+                log_info "Refreshing the Web UI..."
+                if webui_install_app_files; then
+                    sudo systemctl restart kiosk-webui || log_warning "Web UI copied but did not restart - run: sudo systemctl restart kiosk-webui"
+                else
+                    log_warning "Couldn't refresh the Web UI - the Web UI keeps its old version"
+                fi
+            fi
             log_success "Setup refreshed"
 
             echo

menus/complete_uninstall.sh

@@ -112,6 +112,8 @@ action_complete_uninstall() {
     sudo rm -rf "$KIOSK_HOME"
 
     echo "[6/12] Removing remaining systemd units..."
+    sudo systemctl disable --now kiosk-wifi-helper.socket 2>/dev/null || true
+    sudo rm -f "$SYSTEMD_DIR"/kiosk-*.socket
     sudo rm -f "$SYSTEMD_DIR"/kiosk-*.service
     sudo rm -f "$SYSTEMD_DIR"/kiosk-*.timer
     sudo systemctl daemon-reload 2>/dev/null || true

menus/display.sh

@@ -20,6 +20,7 @@ display_status() {
     echo "Pause button:       $(onoff "$ENABLE_PAUSE_BUTTON")"
     echo "Keyboard button:    $(onoff "$ENABLE_KEYBOARD_BUTTON")"
     echo "Navigation button:  $(onoff "$ENABLE_NAV_BUTTON")"
+    echo "Back/home/fwd btns: $(onoff "$ENABLE_HISTORY_BUTTONS") (opacity ${HISTORY_BUTTONS_OPACITY}%)"
 }
 
 display_menu_builder() {
@@ -29,6 +30,8 @@ display_menu_builder() {
         "Toggle pause button (currently: $(onoff "$ENABLE_PAUSE_BUTTON"))"
         "Toggle on-screen keyboard button (currently: $(onoff "$ENABLE_KEYBOARD_BUTTON"))"
         "Toggle navigation/help button (currently: $(onoff "$ENABLE_NAV_BUTTON"))"
+        "Toggle on-screen back/home/forward buttons (currently: $(onoff "$ENABLE_HISTORY_BUTTONS"))"
+        "Back/home/forward button opacity (currently: ${HISTORY_BUTTONS_OPACITY}%)"
     )
     MENU_HANDLERS=(
         action_set_touch_mode
@@ -36,6 +39,8 @@ display_menu_builder() {
         action_toggle_pause_button
         action_toggle_keyboard_button
         action_toggle_nav_button
+        action_toggle_history_buttons
+        action_set_history_opacity
     )
 }
 
@@ -131,3 +136,31 @@ action_toggle_nav_button() {
     fi
     save_config
 }
+
+# Page back/forward: Alt+Left / Alt+Right and the mouse's side buttons
+# always work; this adds clickable buttons (top middle, half transparent,
+# shown on mouse movement or a tap) for screens with no keyboard or mouse
+# buttons. Off by default.
+action_toggle_history_buttons() {
+    if [[ "$ENABLE_HISTORY_BUTTONS" == "true" ]]; then
+        ENABLE_HISTORY_BUTTONS="false"
+        log_warning "On-screen back/home/forward buttons disabled"
+    else
+        ENABLE_HISTORY_BUTTONS="true"
+        log_success "On-screen back/home/forward buttons enabled"
+    fi
+    save_config
+}
+
+# How see-through the back/forward buttons are: 100 = solid, 10 = faint.
+# They get a little more solid while the mouse is over them.
+action_set_history_opacity() {
+    echo
+    echo "How solid the on-screen back/home/forward buttons look (10 = faint, 100 = solid)."
+    HISTORY_BUTTONS_OPACITY=$(ask_integer "Opacity percent" "$HISTORY_BUTTONS_OPACITY" 10 100)
+    save_config
+    log_success "Back/home/forward button opacity: ${HISTORY_BUTTONS_OPACITY}%"
+    if [[ "$ENABLE_HISTORY_BUTTONS" != "true" ]]; then
+        log_info "The buttons are off - turn them on with the entry above."
+    fi
+}

menus/sites.sh

@@ -89,6 +89,8 @@ sites_status() {
     else
         echo "Auto-rotation: off (all pages manual/hidden)"
     fi
+    echo "Keys on the kiosk: Alt+Left back, Alt+Right forward, Alt+Home this page's own address,"
+    echo "                   Ctrl+Tab / Ctrl+PageDown next site, Ctrl+Shift+Tab / Ctrl+PageUp previous"
     if [[ "$HOME_TAB_INDEX" != "-1" ]]; then
         echo "Home page: #$((HOME_TAB_INDEX + 1)), ${INACTIVITY_TIMEOUT}s inactivity timeout"
     else

provision/files/etc/X11/xorg.conf.d/10-serverflags.conf

@@ -2,8 +2,10 @@ Section "ServerFlags"
     # Disable Ctrl+Alt+Backspace (X server kill)
     Option "DontZap" "true"
 
-    # Disable VT switching (Ctrl+Alt+F1-F12)
-    Option "DontVTSwitch" "true"
+    # Allow VT switching (Ctrl+Alt+F1-F8): virtual consoles are ENABLED by
+    # default, as the installer says. Advanced -> Virtual Consoles (or the
+    # install prompt) turns this to "true" to disable them.
+    Option "DontVTSwitch" "false"
 
     # Don't allow clients to disconnect on exit
     Option "AllowClosedownGrabs" "false"

provision/files/etc/systemd/system/kiosk-wifi-helper.socket

@@ -0,0 +1,14 @@
+[Unit]
+Description=Kiosk WiFi helper socket (used by the kiosk app's WiFi screen)
+
+[Socket]
+ListenStream=/run/kiosk-wifi-helper.sock
+SocketUser=root
+# Replaced with the kiosk user's group when installed (lib/provision.sh).
+SocketGroup=@KIOSK_GROUP@
+SocketMode=0660
+Accept=yes
+MaxConnections=4
+
+[Install]
+WantedBy=sockets.target

provision/files/etc/systemd/system/kiosk-wifi-helper@.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=Kiosk WiFi helper (one request)
+
+[Service]
+ExecStart=/usr/local/bin/kiosk-wifi-helper-socket
+StandardInput=socket
+StandardOutput=socket
+StandardError=journal
+# A connect waits up to ~30s for an address, plus netplan; never run forever.
+RuntimeMaxSec=180

provision/files/usr/local/bin/kiosk-wifi-helper

@@ -4,10 +4,12 @@
 # (Ctrl+Alt+Super+W), for joining a WiFi network from the kiosk
 # itself when the console (Ctrl+Alt+F1..F6) is switched off.
 #
-# The kiosk user may run this one script via passwordless sudo
-# (/etc/sudoers.d/kiosk-wifi, written by lib/provision.sh) - it does a
+# The kiosk app reaches it through a root-owned socket
+# (kiosk-wifi-helper.socket, group kiosk; see kiosk-wifi-helper-socket) -
+# or, as a fallback, passwordless sudo (/etc/sudoers.d/kiosk-wifi) - it does a
 # fixed set of things and nothing else:
 #
+#   kiosk-wifi-helper ifaces     {"adapters":[{"name","kind","connected","ssid","ip"}],"selected"}
 #   kiosk-wifi-helper status     {"iface","connected","ssid","ip","configured"}
 #   kiosk-wifi-helper scan       {"iface","networks":[{"ssid","signal","secure"}]}
 #   kiosk-wifi-helper connect    stdin {"ssid","password"} -> {"ok","ip"|"error"}
@@ -17,8 +19,10 @@
 #                                WiFi country (regulatory domain), system
 #                                locale and keyboard layout; every field optional
 #
-# Every reply is one JSON line on stdout, exit 0 on success. connect
-# writes the same netplan file as Core Settings -> WiFi (menus/wifi.sh,
+# Every reply is one JSON line on stdout, exit 0 on success. status, scan
+# and connect accept an optional {"iface": "<adapter>"} in the stdin JSON
+# to act on that adapter; without it the connected adapter is used (see
+# pick_iface). connect writes the same netplan file as Core Settings -> WiFi (menus/wifi.sh,
 # 60-kiosk-wifi.yaml) and puts the previous one back if the interface
 # gets no address - a typo in the password doesn't lose a WiFi network
 # that was working. The password comes in on stdin, never argv (argv is
@@ -168,8 +172,76 @@ default_country() {
     echo "${c^^}"
 }
 
+# Every wireless interface, by what it is (see detect_iface).
+list_wifi_ifaces() {
+    local d
+    for d in $SYS_CLASS/net/*; do
+        if [[ -d "$d/wireless" || -e "$d/phy80211" ]]; then
+            basename "$d"
+        fi
+    done
+}
+
+# The wireless adapter that is connected right now (associated and has an
+# address), if any. With a built-in card plus a USB dongle, the connected
+# one is often not the first in name order - status/scan/connect must act
+# on the adapter that is actually carrying the connection.
+connected_iface() {
+    local i
+    for i in $(list_wifi_ifaces); do
+        if [[ -n "$(current_ssid "$i")" && -n "$(iface_ip "$i")" ]]; then
+            echo "$i"
+            return 0
+        fi
+    done
+    return 1
+}
+
+# Which adapter to use: the connected one, else the one our netplan file
+# configures, else the first found.
+pick_iface() {
+    connected_iface || prefer_configured_iface || detect_iface
+}
+
+# The request body (JSON on stdin), read once in main. REQ_IFACE is the
+# adapter the caller asked for, or empty.
+REQ_INPUT=""
+REQ_IFACE=""
+
+# Only a real wireless interface name is accepted - never pass caller text
+# to a command or a YAML file unchecked.
+valid_iface() {
+    local i
+    [[ "$1" =~ ^[A-Za-z0-9._-]{1,15}$ ]] || return 1
+    for i in $(list_wifi_ifaces); do
+        [[ "$i" == "$1" ]] && return 0
+    done
+    return 1
+}
+
+# "usb" or "built-in", from where the device sits in sysfs.
+iface_kind() {
+    if readlink -f "$SYS_CLASS/net/$1/device" 2>/dev/null | grep -q '/usb'; then
+        echo usb
+    else
+        echo built-in
+    fi
+}
+
+pick_requested_or_default_iface() {
+    if [[ -n "$REQ_IFACE" ]]; then
+        valid_iface "$REQ_IFACE" || return 1
+        echo "$REQ_IFACE"
+    else
+        pick_iface
+    fi
+}
+
 need_iface() {
-    IFACE=$(prefer_configured_iface || detect_iface) || reply_error "No WiFi adapter found. If it's a USB adapter, check it's plugged in."
+    if [[ -n "$REQ_IFACE" ]] && ! valid_iface "$REQ_IFACE"; then
+        reply_error "WiFi adapter $REQ_IFACE not found"
+    fi
+    IFACE=$(pick_requested_or_default_iface) || reply_error "No WiFi adapter found. If it's a USB adapter, check it's plugged in."
     command -v iw >/dev/null || reply_error "WiFi support (iw, wpasupplicant) isn't installed - run Core Settings -> WiFi once from the admin menu"
 }
 
@@ -216,7 +288,7 @@ set_country() {
 
 do_region_set() {
     local input country locale keyboard
-    input=$(head -c 4096)
+    input="$REQ_INPUT"
     country=$(jq -r '.country // "" | strings' <<< "$input" 2>/dev/null) || reply_error "Bad request"
     locale=$(jq -r '.locale // "" | strings' <<< "$input" 2>/dev/null) || reply_error "Bad request"
     keyboard=$(jq -r '.keyboard // "" | strings' <<< "$input" 2>/dev/null) || reply_error "Bad request"
@@ -251,10 +323,27 @@ do_region_set() {
         '{ok:true,country:$c,locale:$l,keyboard:$k,restart:$restart}'
 }
 
+do_ifaces() {
+    local i rows="" sel
+    sel=$(pick_iface) || sel=""
+    for i in $(list_wifi_ifaces); do
+        local ssid ip
+        ssid=$(current_ssid "$i")
+        ip=$(iface_ip "$i")
+        rows+=$(jq -cn --arg n "$i" --arg k "$(iface_kind "$i")" --arg s "$ssid" --arg a "$ip" \
+            '{name:$n,kind:$k,connected:($s != "" and $a != ""),ssid:$s,ip:$a}')$'\n'
+    done
+    jq -cn --arg sel "$sel" --argjson a "$(printf '%s' "$rows" | jq -cs .)" \
+        '{ok:true,selected:$sel,adapters:$a}'
+}
+
 do_status() {
     local iface ssid="" ip="" configured
     configured=$(configured_ssid)
-    if ! iface=$(detect_iface); then
+    if [[ -n "$REQ_IFACE" ]] && ! valid_iface "$REQ_IFACE"; then
+        reply_error "WiFi adapter $REQ_IFACE not found"
+    fi
+    if ! iface=$(pick_requested_or_default_iface); then
         jq -cn --arg c "$configured" '{ok:true,iface:"",connected:false,ssid:"",ip:"",configured:$c}'
         return 0
     fi
@@ -351,7 +440,7 @@ PYEOF
 do_connect() {
     need_iface
     local input ssid password
-    input=$(head -c 4096)
+    input="$REQ_INPUT"
     ssid=$(jq -er '.ssid | strings' <<< "$input" 2>/dev/null) || reply_error "No network name given"
     password=$(jq -r '.password // "" | strings' <<< "$input" 2>/dev/null) || reply_error "Bad request"
 
@@ -454,7 +543,14 @@ trap 'rm -f "$TMP_SCAN"' EXIT
 exec 9> "$LOCK_FILE"
 flock -w 60 9 || reply_error "Another WiFi change is still running - try again in a moment"
 
+# One JSON request body on stdin (not when run by hand from a terminal).
+if [[ ! -t 0 ]]; then
+    REQ_INPUT=$(head -c 4096)
+    REQ_IFACE=$(jq -r '.iface // "" | strings' <<< "$REQ_INPUT" 2>/dev/null) || REQ_IFACE=""
+fi
+
 case "${1:-}" in
+    ifaces)  do_ifaces ;;
     status)  do_status ;;
     scan)    do_scan ;;
     connect) do_connect ;;

provision/files/usr/local/bin/kiosk-wifi-helper-socket

@@ -0,0 +1,38 @@
+#!/bin/bash
+################################################################################
+# kiosk-wifi-helper-socket - socket front end for kiosk-wifi-helper.
+#
+# Run by systemd (kiosk-wifi-helper@.service, one instance per connection to
+# /run/kiosk-wifi-helper.sock) as root, with the connection as stdin AND
+# stdout. The kiosk app connects, sends
+#
+#     <action>\n<JSON request body>
+#
+# and half-closes; the reply is the helper's one JSON line.
+#
+# Why a socket and not `sudo`: the kiosk app can end up running with the
+# Linux "no new privileges" flag, and sudo then refuses to run as root
+# ("The 'no new privileges' flag is set"). A root service reached through a
+# socket isn't affected by that flag. Who may connect is decided by the
+# socket's owner/group/mode (root:kiosk 0660) - the same people who could
+# run the helper through the old sudoers rule, no more.
+#
+# Only the fixed actions below are passed on; anything else is refused.
+################################################################################
+set -uo pipefail
+
+HELPER="${KIOSK_WIFI_HELPER:-/usr/local/bin/kiosk-wifi-helper}"
+
+# First line only; bash's read doesn't consume past the newline on a
+# socket, so the JSON body stays on stdin for the helper.
+IFS= read -r -t 10 -n 32 action || action=""
+
+case "$action" in
+    ifaces|status|scan|connect|region-status|region-set)
+        exec "$HELPER" "$action"
+        ;;
+    *)
+        echo '{"ok":false,"error":"unknown action"}'
+        exit 1
+        ;;
+esac

webui/lib/auth.js

@@ -0,0 +1,141 @@
+'use strict';
+
+// webui/lib/auth.js - login for the Web UI, using the SAME code the kiosk's
+// lock screen uses (Core Settings -> Password Protection & Lockout: a PIN or
+// a password).
+//
+// Only when the kiosk's password protection is on. With it off, the Web UI
+// is open as before (it is meant for a trusted LAN, or behind a reverse
+// proxy with its own login - see server.js).
+//
+// A correct code gives the browser a random session cookie (kept in memory;
+// a restart of the service logs everyone out). Wrong codes are slowed down
+// the same way the lock screen does it: after 5 wrong tries in a row, a
+// wait of 30 s that doubles up to 5 minutes. Changing the kiosk's code logs
+// every browser out, because sessions are tied to the stored code.
+
+const crypto = require('crypto');
+const { readLockSettings, hashPassword } = require('./config');
+
+const COOKIE = 'kioskwebui';
+const SESSION_MS = 12 * 60 * 60 * 1000; // 12 hours
+const FREE_TRIES = 5;
+const BASE_WAIT_S = 30;
+const MAX_WAIT_S = 300;
+
+const sessions = new Map(); // token -> { expires, fp }
+let failures = 0;
+let blockedUntil = 0;
+
+// A short fingerprint of the stored code: sessions stop working when it changes.
+const fingerprint = (hash) => crypto.createHash('sha256').update('fp:' + hash).digest('hex');
+
+function parseCookies(header) {
+    const out = {};
+    for (const part of String(header || '').split(';')) {
+        const i = part.indexOf('=');
+        if (i > 0) out[part.slice(0, i).trim()] = decodeURIComponent(part.slice(i + 1).trim());
+    }
+    return out;
+}
+
+function currentSession(req, lock) {
+    const token = parseCookies(req.headers.cookie)[COOKIE];
+    if (!token) return null;
+    const s = sessions.get(token);
+    if (!s) return null;
+    if (s.expires < Date.now() || s.fp !== fingerprint(lock.hash)) {
+        sessions.delete(token);
+        return null;
+    }
+    return token;
+}
+
+function setCookie(res, token, maxAgeS) {
+    // HttpOnly + SameSite=Strict: not readable by page scripts, and not sent
+    // on requests that start from another site. No Secure flag - this is
+    // normally plain http on a LAN.
+    res.setHeader('Set-Cookie', `${COOKIE}=${token}; HttpOnly; SameSite=Strict; Path=/; Max-Age=${maxAgeS}`);
+}
+
+function issueSession(res, lock) {
+    for (const [t, s] of sessions) if (s.expires < Date.now()) sessions.delete(t);
+    const token = crypto.randomBytes(32).toString('hex');
+    sessions.set(token, { expires: Date.now() + SESSION_MS, fp: fingerprint(lock.hash) });
+    setCookie(res, token, SESSION_MS / 1000);
+}
+
+function codeMatches(code, hash) {
+    const a = Buffer.from(hashPassword(code), 'hex');
+    const b = Buffer.from(hash, 'hex');
+    return a.length === b.length && crypto.timingSafeEqual(a, b);
+}
+
+// POST /api/login  { code }
+function login(req, res) {
+    const lock = readLockSettings();
+    if (!lock.enabled) return res.json({ ok: true, required: false });
+
+    const wait = Math.ceil((blockedUntil - Date.now()) / 1000);
+    if (wait > 0) {
+        return res.status(429).json({ ok: false, waitSeconds: wait, error: `Too many wrong tries - wait ${wait}s` });
+    }
+    const code = req.body && typeof req.body.code === 'string' ? req.body.code : '';
+    if (code && codeMatches(code, lock.hash)) {
+        failures = 0;
+        issueSession(res, lock);
+        return res.json({ ok: true });
+    }
+    failures++;
+    const what = lock.codeType === 'pin' ? 'PIN' : 'password';
+    if (failures >= FREE_TRIES) {
+        const waitS = Math.min(MAX_WAIT_S, BASE_WAIT_S * 2 ** (failures - FREE_TRIES));
+        blockedUntil = Date.now() + waitS * 1000;
+        return res.status(429).json({ ok: false, waitSeconds: waitS, error: `Too many wrong tries - wait ${waitS}s` });
+    }
+    return res.status(401).json({ ok: false, error: `Incorrect ${what}` });
+}
+
+// POST /api/logout
+function logout(req, res) {
+    const token = parseCookies(req.headers.cookie)[COOKIE];
+    if (token) sessions.delete(token);
+    setCookie(res, '', 0);
+    res.json({ ok: true });
+}
+
+// GET /api/auth - open to everyone: tells the page whether to show a login.
+function status(req, res) {
+    const lock = readLockSettings();
+    res.json({
+        required: lock.enabled,
+        authed: !lock.enabled || !!currentSession(req, lock),
+        codeType: lock.codeType,
+    });
+}
+
+// Gate for everything else. With protection off it lets everything through.
+// Without a session: API calls get a 401, page requests get the login page.
+function requireLogin(loginPage) {
+    return (req, res, next) => {
+        const lock = readLockSettings();
+        if (!lock.enabled) return next();
+        if (currentSession(req, lock)) return next();
+
+        // The few things the login page itself needs.
+        if (req.path === '/api/login' || req.path === '/api/auth' || req.path === '/style.css') return next();
+        if (req.path.startsWith('/api/')) {
+            return res.status(401).json({ error: 'Login required', loginRequired: true });
+        }
+        res.status(401).sendFile(loginPage);
+    };
+}
+
+// After a successful save that left protection on (e.g. the code was just
+// set or changed), keep the person who saved it logged in.
+function keepLoggedInAfterSave(res) {
+    const lock = readLockSettings();
+    if (lock.enabled) issueSession(res, lock);
+}
+
+module.exports = { requireLogin, login, logout, status, keepLoggedInAfterSave, _sessions: sessions };

webui/lib/config.js

@@ -40,6 +40,8 @@ const SCALAR_DEFAULTS = {
     enablePauseButton: true,
     enableKeyboardButton: true,
     enableNavButton: true,
+    enableHistoryButtons: false,
+    historyButtonsOpacity: 50,
     enablePasswordProtection: false,
     lockoutTimeout: 0,
     lockoutAtTime: '',
@@ -177,4 +179,17 @@ function saveConfig(patch) {
     return loadConfig();
 }
 
-module.exports = { loadConfig, saveConfig, CONFIG_PATH, SCALAR_DEFAULTS };
+// What the Web UI login needs: whether the kiosk's password protection is
+// on and the stored SHA-256 of its unlock code (the same one the lock screen
+// checks). Only used server-side to verify a login - never sent to a browser.
+function readLockSettings() {
+    const existing = readExisting();
+    const hash = typeof existing.lockoutPassword === 'string' ? existing.lockoutPassword : '';
+    return {
+        enabled: existing.enablePasswordProtection === true && hash.length > 0,
+        hash,
+        codeType: existing.lockoutCodeType === 'pin' ? 'pin' : 'password',
+    };
+}
+
+module.exports = { loadConfig, saveConfig, readLockSettings, hashPassword, CONFIG_PATH, SCALAR_DEFAULTS };

webui/public/app.js

@@ -1,3 +1,12 @@
+// Signed out (or the kiosk's code changed): any 401 from the server sends
+// the page back to the login screen.
+const nativeFetch = window.fetch.bind(window);
+window.fetch = async (...args) => {
+    const res = await nativeFetch(...args);
+    if (res.status === 401 && !String(args[0]).includes('/api/login')) location.reload();
+    return res;
+};
+
 'use strict';
 
 // webui/public/app.js - vanilla JS, no framework/build step. Every
@@ -32,6 +41,23 @@ document.querySelectorAll('.nav-item').forEach((btn) => {
 
 document.getElementById('brand-sub').textContent = location.host || 'this kiosk';
 
+// When the kiosk's password protection is on, this page is behind the same
+// PIN/password - say so, and offer Sign out.
+fetch('/api/auth').then((r) => r.json()).then((s) => {
+    if (!s.required) return;
+    const foot = document.getElementById('sidebar-footer');
+    foot.textContent = "Signed in with the kiosk's " + (s.codeType === 'pin' ? 'PIN' : 'password') + '. ';
+    const out = document.createElement('a');
+    out.href = '#';
+    out.textContent = 'Sign out';
+    out.addEventListener('click', async (e) => {
+        e.preventDefault();
+        await fetch('/api/logout', { method: 'POST' });
+        location.reload();
+    });
+    foot.appendChild(out);
+}).catch(() => {});
+
 /* ---------------------------------------------------------------------- */
 /* Config API (Sites / Display / Lockout)                                 */
 /* ---------------------------------------------------------------------- */
@@ -173,6 +199,8 @@ displayForm.addEventListener('submit', async (e) => {
         enablePauseButton: fd.get('enablePauseButton') === 'on',
         enableKeyboardButton: fd.get('enableKeyboardButton') === 'on',
         enableNavButton: fd.get('enableNavButton') === 'on',
+        enableHistoryButtons: fd.get('enableHistoryButtons') === 'on',
+        historyButtonsOpacity: parseInt(fd.get('historyButtonsOpacity'), 10),
         homeTabIndex: parseInt(fd.get('homeTabIndex'), 10),
         inactivityTimeoutMinutes: parseInt(fd.get('inactivityTimeoutMinutes'), 10),
     };
@@ -282,6 +310,8 @@ function populateAll(config) {
     displayForm.elements.enablePauseButton.checked = !!config.enablePauseButton;
     displayForm.elements.enableKeyboardButton.checked = !!config.enableKeyboardButton;
     displayForm.elements.enableNavButton.checked = !!config.enableNavButton;
+    displayForm.elements.enableHistoryButtons.checked = !!config.enableHistoryButtons;
+    displayForm.elements.historyButtonsOpacity.value = config.historyButtonsOpacity;
     updateHomeTabOptions(config.tabs);
     homeTabSelect.value = String(config.homeTabIndex);
     displayForm.elements.inactivityTimeoutMinutes.value = Math.round(config.inactivityTimeout / 60);

webui/public/index.html

@@ -46,7 +46,7 @@
       </button>
     </div>
 
-    <div class="sidebar-footer">No login of its own - front this with your own reverse proxy + Authelia if it needs to be reachable beyond a trusted LAN.</div>
+    <div class="sidebar-footer" id="sidebar-footer">Open to anyone on this network while the kiosk's password protection is off. Turn it on (Lockout) and this page asks for the same PIN/password. Beyond a trusted LAN, front it with your own reverse proxy + Authelia.</div>
   </nav>
 
   <main class="main">
@@ -65,6 +65,18 @@
           <button type="button" id="save-sites">Save Sites &amp; Page Timing</button>
         </div>
       </div>
+      <div class="card">
+        <h2 style="margin-top:0">Keyboard shortcuts</h2>
+        <p class="hint" style="margin-bottom:10px">For a keyboard on the kiosk. They act on the page that's on screen, and don't work while the screen is locked.</p>
+        <table class="shortcuts">
+          <tr><td><kbd>Alt</kbd> + <kbd>Left</kbd></td><td>Back (previous page in this site)</td></tr>
+          <tr><td><kbd>Alt</kbd> + <kbd>Right</kbd></td><td>Forward</td></tr>
+          <tr><td><kbd>Alt</kbd> + <kbd>Home</kbd></td><td>Home: back to this page's own address, as set above</td></tr>
+          <tr><td><kbd>Ctrl</kbd> + <kbd>Tab</kbd> / <kbd>Ctrl</kbd> + <kbd>PageDown</kbd></td><td>Next site</td></tr>
+          <tr><td><kbd>Ctrl</kbd> + <kbd>Shift</kbd> + <kbd>Tab</kbd> / <kbd>Ctrl</kbd> + <kbd>PageUp</kbd></td><td>Previous site</td></tr>
+        </table>
+        <p class="hint" style="margin-top:10px">Screens with no keyboard can show on-screen back / home / forward buttons: Display &rarr; "On-screen back / home / forward buttons". A mouse's side buttons also go back and forward.</p>
+      </div>
     </section>
 
     <!-- Display & Interaction -->
@@ -95,6 +107,7 @@
           <label class="checkbox"><input type="checkbox" name="enablePauseButton"> Pause button</label>
           <label class="checkbox"><input type="checkbox" name="enableKeyboardButton"> On-screen keyboard button</label>
           <label class="checkbox"><input type="checkbox" name="enableNavButton"> Navigation/help button</label>
+          <label class="checkbox"><input type="checkbox" name="enableHistoryButtons"> On-screen back / home / forward buttons (top middle)</label>
 
           <fieldset>
             <legend>Home page</legend>
@@ -104,6 +117,10 @@
                 <option value="-1">Disabled</option>
               </select>
             </label>
+            <label>
+              Back/home/forward button opacity (10 = faint, 100 = solid)
+              <input type="number" name="historyButtonsOpacity" min="10" max="100" step="5">
+            </label>
             <label>
               Inactivity timeout (minutes)
               <input type="number" name="inactivityTimeoutMinutes" min="1" max="240" step="1">

webui/public/login.html

@@ -0,0 +1,60 @@
+<!doctype html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Kiosk Web UI - sign in</title>
+<link rel="stylesheet" href="style.css">
+<style>
+  body { display: flex; align-items: center; justify-content: center; min-height: 100vh; margin: 0; }
+  .login { width: min(360px, 92vw); padding: 28px; border-radius: 14px; background: var(--surface, #fff);
+           box-shadow: 0 6px 30px rgba(0,0,0,.18); }
+  .login h1 { font-size: 20px; margin: 0 0 6px; }
+  .login p { margin: 0 0 16px; opacity: .75; font-size: 14px; }
+  .login input { width: 100%; box-sizing: border-box; padding: 12px; font-size: 18px; margin-bottom: 12px; }
+  .login button { width: 100%; padding: 12px; font-size: 16px; cursor: pointer; }
+  #err { color: #c0392b; min-height: 20px; margin-top: 10px; font-size: 14px; }
+</style>
+</head>
+<body>
+<form class="login" id="form">
+  <h1>Kiosk Web UI</h1>
+  <p id="hint">Enter the kiosk's code to continue.</p>
+  <input id="code" type="password" autocomplete="current-password" autofocus>
+  <button type="submit" id="go">Sign in</button>
+  <div id="err"></div>
+</form>
+<script>
+  const $ = (id) => document.getElementById(id);
+  fetch('/api/auth').then((r) => r.json()).then((s) => {
+    if (s.authed) { location.href = '/'; return; }
+    if (s.codeType === 'pin') {
+      $('hint').textContent = "Enter the kiosk's PIN to continue.";
+      $('code').setAttribute('inputmode', 'numeric');
+    } else {
+      $('hint').textContent = "Enter the kiosk's password to continue.";
+    }
+  }).catch(() => {});
+  $('form').addEventListener('submit', async (e) => {
+    e.preventDefault();
+    $('go').disabled = true;
+    $('err').textContent = '';
+    try {
+      const res = await fetch('/api/login', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ code: $('code').value }),
+      });
+      const data = await res.json().catch(() => ({}));
+      if (res.ok && data.ok) { location.href = '/'; return; }
+      $('err').textContent = data.error || 'Sign in failed';
+      $('code').value = '';
+      $('code').focus();
+    } catch (err) {
+      $('err').textContent = 'Could not reach the kiosk';
+    }
+    $('go').disabled = false;
+  });
+</script>
+</body>
+</html>

webui/public/style.css

@@ -393,3 +393,14 @@ button.danger:hover { background: var(--danger-soft); }
   .sidebar-footer { display: none; }
   .main { padding: 20px; }
 }
+
+/* Keyboard shortcuts list on the Sites page */
+.shortcuts { border-collapse: collapse; width: 100%; font-size: 13.5px; }
+.shortcuts td { padding: 6px 10px 6px 0; vertical-align: top; }
+.shortcuts td:first-child { white-space: nowrap; }
+kbd {
+  display: inline-block; padding: 1px 6px; font: inherit; font-size: 12px;
+  border: 1px solid var(--border, #cfd4da); border-bottom-width: 2px; border-radius: 4px;
+  background: var(--surface-2, rgba(127,127,127,.12));
+}
+

webui/server.js

@@ -6,11 +6,12 @@
 // no privileged system mutation involved (see menus/addon_webui.sh's
 // header for why the rest of Core Settings/Addons/Advanced aren't here).
 //
-// No login of its own by design: Authelia runs elsewhere, and the admin
-// site goes behind the user's own Caddy reverse proxy with Authelia
-// forward-auth in front of it, the same way every other self-hosted app
-// they run is protected. This process only binds where it's told to
-// (BIND_ADDR/PORT below) and trusts whatever's in front of it.
+// Login: when the kiosk's password protection is on, the Web UI asks for the
+// same PIN/password the lock screen uses (lib/auth.js); with it off it is
+// open. Beyond that, no login of its own: Authelia runs elsewhere, and the
+// admin site can go behind the user's own Caddy reverse proxy with Authelia
+// forward-auth in front of it. This process only binds where it's told to
+// (BIND_ADDR/PORT below).
 //
 // Runs as $KIOSK_USER (see the systemd unit menus/addon_webui.sh
 // installs) - the same user Electron runs as, and the owner of
@@ -22,6 +23,7 @@ const express = require('express');
 const { loadConfig, saveConfig } = require('./lib/config');
 const { ACTIONS } = require('./lib/actions');
 const { startJob, getJob } = require('./lib/jobs');
+const auth = require('./lib/auth');
 
 const HELPER_PATH = process.env.HELPER_PATH || '/usr/local/bin/kiosk-webui-helper';
 const WIFI_HELPER_PATH = process.env.WIFI_HELPER_PATH || '/usr/local/bin/kiosk-wifi-helper';
@@ -29,6 +31,14 @@ const SUDO_CMD = process.env.SUDO_CMD !== undefined ? process.env.SUDO_CMD : 'su
 
 const app = express();
 app.use(express.json({ limit: '256kb' }));
+
+// When the kiosk's password protection is on, the Web UI asks for the same
+// PIN/password (see lib/auth.js). With it off, nothing changes.
+app.post('/api/login', auth.login);
+app.post('/api/logout', auth.logout);
+app.get('/api/auth', auth.status);
+app.use(auth.requireLogin(path.join(__dirname, 'public', 'login.html')));
+
 app.use(express.static(path.join(__dirname, 'public')));
 
 const SWIPE_MODES = ['dual', 'standard'];
@@ -70,6 +80,12 @@ app.put('/api/config', (req, res) => {
     if (body.enablePauseButton !== undefined) patch.enablePauseButton = !!body.enablePauseButton;
     if (body.enableKeyboardButton !== undefined) patch.enableKeyboardButton = !!body.enableKeyboardButton;
     if (body.enableNavButton !== undefined) patch.enableNavButton = !!body.enableNavButton;
+    if (body.enableHistoryButtons !== undefined) patch.enableHistoryButtons = !!body.enableHistoryButtons;
+    if (body.historyButtonsOpacity !== undefined) {
+        const pct = Number(body.historyButtonsOpacity);
+        if (!Number.isInteger(pct) || pct < 10 || pct > 100) return badRequest(res, 'Button opacity must be 10-100 percent');
+        patch.historyButtonsOpacity = pct;
+    }
 
     let tabCount;
     if (body.tabs !== undefined) {
@@ -173,7 +189,11 @@ app.put('/api/config', (req, res) => {
     }
 
     try {
-        res.json(saveConfig(patch));
+        const saved = saveConfig(patch);
+        // If this save set or changed the kiosk's code, every old session
+        // just stopped working - keep the person who saved it signed in.
+        auth.keepLoggedInAfterSave(res);
+        res.json(saved);
     } catch (e) {
         console.error('saveConfig failed:', e);
         res.status(500).json({ error: 'Failed to save configuration' });
@@ -288,7 +308,7 @@ app.put('/api/region', (req, res) => {
     runRegionHelper('region-set', input, res);
 });
 
-const PORT = process.env.PORT || 8090;
+const PORT = process.env.PORT || 8888;
 const BIND_ADDR = process.env.BIND_ADDR || '0.0.0.0';
 
 if (require.main === module) {

webui/test/api.test.js

@@ -18,6 +18,20 @@ process.env.WIFI_HELPER_PATH = path.join(__dirname, 'fixtures', 'fake-wifi-helpe
 
 const app = require('../server');
 
+// These tests turn password protection on partway through, and the Web UI
+// then (correctly) wants a login. A browser keeps the session cookie the
+// server hands out on a save; Node's fetch doesn't, so keep it here.
+const nodeFetch = global.fetch;
+let sessionCookie = '';
+global.fetch = async (url, opts = {}) => {
+    const headers = { ...(opts.headers || {}) };
+    if (sessionCookie) headers.cookie = sessionCookie;
+    const res = await nodeFetch(url, { ...opts, headers });
+    const set = res.headers.get('set-cookie');
+    if (set) sessionCookie = set.split(';')[0];
+    return res;
+};
+
 let failures = 0;
 async function check(label, fn) {
     try {

webui/test/auth.test.js

@@ -0,0 +1,153 @@
+'use strict';
+
+// webui/test/auth.test.js - the Web UI login: with the kiosk's password
+// protection off the UI is open; with it on, everything needs the kiosk's
+// PIN/password. Starts the real server on a random port against a scratch
+// config.json. Run with: node test/auth.test.js
+
+const fs = require('fs');
+const os = require('os');
+const path = require('path');
+const assert = require('assert');
+
+const scratchDir = fs.mkdtempSync(path.join(os.tmpdir(), 'webui-auth-test-'));
+process.env.CONFIG_PATH = path.join(scratchDir, 'config.json');
+process.env.SUDO_CMD = '';
+
+const app = require('../server');
+const { saveConfig } = require('../lib/config');
+
+let failures = 0;
+async function check(label, fn) {
+    try {
+        await fn();
+        console.log(`PASS: ${label}`);
+    } catch (e) {
+        failures++;
+        console.log(`FAIL: ${label} - ${e.message}`);
+    }
+}
+
+async function main() {
+    const server = app.listen(0, '127.0.0.1');
+    await new Promise((resolve) => server.once('listening', resolve));
+    const base = `http://127.0.0.1:${server.address().port}`;
+    const post = (url, body, cookie) => fetch(base + url, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json', ...(cookie ? { cookie } : {}) },
+        body: JSON.stringify(body || {}),
+    });
+    const get = (url, cookie) => fetch(base + url, { headers: cookie ? { cookie } : {} });
+    const cookieOf = (res) => (res.headers.get('set-cookie') || '').split(';')[0];
+
+    await check('protection off: no login needed, /api/auth says so', async () => {
+        assert.strictEqual((await get('/api/config')).status, 200);
+        const a = await (await get('/api/auth')).json();
+        assert.strictEqual(a.required, false);
+        assert.strictEqual(a.authed, true);
+    });
+
+    saveConfig({ enablePasswordProtection: true, newLockoutPassword: 'hunter22' });
+
+    await check('protection on: API calls are refused without a login', async () => {
+        const res = await get('/api/config');
+        assert.strictEqual(res.status, 401);
+        assert.strictEqual((await res.json()).loginRequired, true);
+        assert.strictEqual((await post('/api/actions/anything/run')).status, 401);
+    });
+
+    await check('protection on: pages get the login screen, not the app', async () => {
+        const res = await get('/');
+        assert.strictEqual(res.status, 401);
+        const html = await res.text();
+        assert.ok(html.includes('id="code"'));
+        assert.ok(!html.includes('nav-item'));
+        assert.strictEqual((await get('/app.js')).status, 401);
+    });
+
+    await check('/api/auth reports a login is required, and the code type', async () => {
+        const a = await (await get('/api/auth')).json();
+        assert.strictEqual(a.required, true);
+        assert.strictEqual(a.authed, false);
+        assert.strictEqual(a.codeType, 'password');
+    });
+
+    await check('a wrong code is refused and gives no session', async () => {
+        const res = await post('/api/login', { code: 'nope' });
+        assert.strictEqual(res.status, 401);
+        assert.strictEqual(res.headers.get('set-cookie'), null);
+    });
+
+    let cookie = '';
+    await check('the right code gives an HttpOnly session that unlocks the API', async () => {
+        const res = await post('/api/login', { code: 'hunter22' });
+        assert.strictEqual(res.status, 200);
+        const raw = res.headers.get('set-cookie');
+        assert.ok(/HttpOnly/i.test(raw) && /SameSite=Strict/i.test(raw));
+        cookie = cookieOf(res);
+        assert.strictEqual((await get('/api/config', cookie)).status, 200);
+        assert.strictEqual((await get('/', cookie)).status, 200);
+        assert.strictEqual((await (await get('/api/auth', cookie)).json()).authed, true);
+    });
+
+    await check('the stored code hash is never sent to the browser', async () => {
+        const text = await (await get('/api/config', cookie)).text();
+        assert.ok(!text.includes('lockoutPassword"'));
+        assert.ok(!/[0-9a-f]{64}/.test(text));
+    });
+
+    await check('saving settings keeps you signed in', async () => {
+        const res = await fetch(`${base}/api/config`, {
+            method: 'PUT',
+            headers: { 'Content-Type': 'application/json', cookie },
+            body: JSON.stringify({ enableNavButton: false }),
+        });
+        assert.strictEqual(res.status, 200);
+    });
+
+    await check('changing the kiosk code signs every browser out', async () => {
+        saveConfig({ newLockoutPassword: 'another-one' });
+        assert.strictEqual((await get('/api/config', cookie)).status, 401);
+        assert.strictEqual((await post('/api/login', { code: 'hunter22' })).status, 401);
+        const ok = await post('/api/login', { code: 'another-one' });
+        assert.strictEqual(ok.status, 200);
+        cookie = cookieOf(ok);
+    });
+
+    await check('setting a new code from the Web UI keeps that browser signed in', async () => {
+        const res = await fetch(`${base}/api/config`, {
+            method: 'PUT',
+            headers: { 'Content-Type': 'application/json', cookie },
+            body: JSON.stringify({ newLockoutPassword: 'third-code' }),
+        });
+        assert.strictEqual(res.status, 200);
+        const fresh = cookieOf(res);
+        assert.ok(fresh && fresh !== cookie);
+        assert.strictEqual((await get('/api/config', fresh)).status, 200);
+        assert.strictEqual((await get('/api/config', cookie)).status, 401);
+        cookie = fresh;
+    });
+
+    await check('sign out ends the session', async () => {
+        assert.strictEqual((await post('/api/logout', {}, cookie)).status, 200);
+        assert.strictEqual((await get('/api/config', cookie)).status, 401);
+    });
+
+    await check('five wrong codes in a row slow logins down - even the right code waits', async () => {
+        let last;
+        for (let i = 0; i < 5; i++) last = await post('/api/login', { code: 'wrong' + i });
+        assert.strictEqual(last.status, 429);
+        assert.ok((await last.json()).waitSeconds >= 30);
+        assert.strictEqual((await post('/api/login', { code: 'third-code' })).status, 429);
+    });
+
+    server.close();
+    fs.rmSync(scratchDir, { recursive: true, force: true });
+    if (failures > 0) {
+        console.log(`${failures} FAILURE(S)`);
+        process.exit(1);
+    }
+    console.log('ALL DONE');
+}
+
+main();

webui/test/config.test.js

@@ -75,6 +75,17 @@ check('saveConfig merge preserves fields this app never tracks (the previously-f
     assert.strictEqual(onDisk.enableNavButton, false);
 });
 
+check('enableHistoryButtons defaults off and round-trips', () => {
+    fs.rmSync(process.env.CONFIG_PATH, { force: true });
+    assert.strictEqual(loadConfig().enableHistoryButtons, false);
+    saveConfig({ enableHistoryButtons: true });
+    assert.strictEqual(JSON.parse(fs.readFileSync(process.env.CONFIG_PATH, 'utf8')).enableHistoryButtons, true);
+    assert.strictEqual(loadConfig().enableHistoryButtons, true);
+    assert.strictEqual(loadConfig().historyButtonsOpacity, 50);
+    saveConfig({ historyButtonsOpacity: 80 });
+    assert.strictEqual(loadConfig().historyButtonsOpacity, 80);
+});
+
 check('saveConfig tabs: new password gets hashed, never stored/returned as plaintext', () => {
     const result = saveConfig({
         tabs: [{ url: 'https://a.example.com', duration: 30, name: 'A', username: 'bob', password: 'hunter2' }],