Release 1.7.6

- CHANGELOG: cut the 1.7.6 release (dated 2026-06-11); reset Unreleased.
- VERSION: 1.7.5 -> 1.7.6.
- Manuals (DA + EN): bump version stamps.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

CHANGELOG.md

@@ -11,6 +11,48 @@ Version numbers follow [Semantic Versioning](https://semver.org/spec/v2.0.0.html
 
 ---
 
+## [1.7.6] — 2026-06-11
+
+### Fixed
+
+- **Update restart leaked the listening socket and hopped to port 5101** — Werkzeug marks its server socket inheritable (`srv.socket.set_inheritable(True)`, unconditionally, for its debug reloader), so the in-app update's `os.execv` restart carried the old listening socket into the new process as a zombie listener: same PID listening on both 5100 (never accepted — clients hang) and 5101 (the actual server). The 1.7.3 `SO_REUSEADDR`/grace-period fix couldn't help because the port genuinely was occupied — by the restarting process itself. `_restart_self()` now marks every fd above stderr close-on-exec before the exec (`_mark_fds_cloexec()`, enumerating `/proc/self/fd` on Linux), so the old socket dies with the exec and the new server rebinds 5100 immediately.
+
+---
+
+## [1.7.5] — 2026-06-11
+
+### Fixed
+
+- **Stale UI after updating the server** — Flask served `/static/` files with no `Cache-Control` header, so browsers cached JS/CSS heuristically (often for days). After a server update — including the new in-app self-update, whose post-install reload hit the cache — the backend was new but the frontend stayed old, and fixes appeared "not to work" until a hard refresh. `SEND_FILE_MAX_AGE_DEFAULT = 0` now makes every static file revalidate via ETag: unchanged files answer with a cheap 304, changed files are re-fetched immediately on the next normal page load.
+
+---
+
+## [1.7.4] — 2026-06-10
+
+### Fixed
+
+- **Share modal kept stale input after creating a link** — clicking "Create" only cleared the label field; scope type, user email, date range, and expiry kept their values, so the next link silently inherited the previous link's scope settings. The form-reset logic from `openShareModal()` is now a shared `_resetShareForm()` helper called after every successful create (the generated link row stays visible for copying).
+
+---
+
+## [1.7.3] — 2026-06-10
+
+### Fixed
+
+- **App restart no longer hops to a new port** — the in-app update restart (and any quick stop/start) left connections from the previous instance in TIME_WAIT, and the startup port probe did a plain `bind()` that treats TIME_WAIT as occupied — so the restarted app silently came up on 5101 and the browser's reload poll never found it. The probe now sets `SO_REUSEADDR` (matching how Werkzeug actually binds, so an actively listening port is still detected as occupied), and the requested port gets a 10-second grace period before the auto-increment fallback kicks in, covering the brief window where the old process hasn't fully released the socket.
+
+- **Share links now respect a reverse proxy** — `_getShareBaseUrl()` rewrote every copied share link to `http://<LAN-IP>:5100` (via `/api/local_ip`), which would bypass TLS when the scanner sits behind a reverse proxy (Zoraxy, Caddy, nginx, …): a DPO opening the link would silently fall back to plain HTTP. The LAN-IP rewrite now only applies in the case it was built for — browsing the app at `localhost` over HTTP, where `window.location.origin` would produce links unusable from other machines. Any HTTPS or non-localhost origin is used as-is.
+
+---
+
+## [1.7.2] — 2026-06-10
+
+### Fixed
+
+- **Copy buttons did nothing over plain HTTP** — the share modal's "Copy" buttons (new link + active links) and the log panel's copy button called `navigator.clipboard.writeText()` directly. The Clipboard API only exists in secure contexts (HTTPS or localhost), so when the scanner is reached at `http://<LAN-IP>:5100` the call threw synchronously and the intended `execCommand` fallback never ran — the button silently did nothing. `_copyText()` in `viewer.js` now feature-detects the API, falls back to `document.execCommand('copy')`, and as a last resort shows the link in a `prompt()` for manual copying; `log.js` reuses the same helper via `window._copyText`. `_getShareBaseUrl()` now caches the LAN-IP lookup so the token-list Copy buttons copy synchronously within the click gesture (required for `execCommand`).
+
+---
+
 ## [1.7.1] — 2026-06-10
 
 ### Added

VERSION

@@ -1 +1 @@
-1.7.1
+1.7.6

docs/manuals/MANUAL-DA.md

@@ -1,6 +1,6 @@
 # GDPR Scanner — Brugermanual
 
-Version 1.7.1
+Version 1.7.6
 
 ---
 
@@ -671,4 +671,4 @@ For en typisk skole- eller kommunescanning er omkostningen ubetydelig — Claude
 
 ---
 
-*GDPR Scanner v1.7.1 — teknisk opsætning og konfiguration: se README.md*
+*GDPR Scanner v1.7.6 — teknisk opsætning og konfiguration: se README.md*

docs/manuals/MANUAL-EN.md

@@ -1,6 +1,6 @@
 # GDPR Scanner — User Manual
 
-Version 1.7.1
+Version 1.7.6
 
 ---
 
@@ -671,4 +671,4 @@ For a typical school or municipality scan the cost is negligible — Claude Haik
 
 ---
 
-*GDPR Scanner v1.7.1 — for technical setup and configuration see README.md*
+*GDPR Scanner v1.7.6 — for technical setup and configuration see README.md*

gdpr_scanner.py

@@ -317,6 +317,11 @@ app = Flask(__name__,
             template_folder=_os.path.join(_BASE_DIR, "templates"),
             static_folder=_os.path.join(_BASE_DIR, "static"))
 
+# Static files must revalidate on every load (cheap 304s via ETag). Without
+# this there is no Cache-Control header and browsers cache JS/CSS heuristically
+# for days — after a self-update the backend is new but the UI stays stale.
+app.config["SEND_FILE_MAX_AGE_DEFAULT"] = 0
+
 # Session secret — derived from machine_id so it survives restarts without a separate file.
 # machine_id is also the Fernet key (base64-encoded 32 bytes); we use its raw bytes as the secret.
 try:
@@ -2261,14 +2266,33 @@ Example --settings file with SMTP:
 
         # Find a free port — auto-increment from the requested port if in use.
         import socket as _socket
-        def _find_free_port(start: int, host: str) -> int:
+
-            for p in range(start, start + 100):
+        def _can_bind(p: int, host: str) -> bool:
             with _socket.socket(_socket.AF_INET, _socket.SOCK_STREAM) as s:
+                # Probe with SO_REUSEADDR, matching how Werkzeug binds.
+                # Without it, connections left in TIME_WAIT by a previous
+                # instance (e.g. the in-app update restart) make the port
+                # look occupied and the app silently moves to the next one.
+                s.setsockopt(_socket.SOL_SOCKET, _socket.SO_REUSEADDR, 1)
                 try:
                     s.bind((host, p))
-                        return p
+                    return True
                 except OSError:
-                        continue
+                    return False
+
+        def _find_free_port(start: int, host: str) -> int:
+            # Give the requested port a grace period — after a self-restart
+            # the previous process may not have released it yet.
+            deadline = time.time() + 10
+            while True:
+                if _can_bind(start, host):
+                    return start
+                if time.time() >= deadline:
+                    break
+                time.sleep(0.5)
+            for p in range(start + 1, start + 100):
+                if _can_bind(p, host):
+                    return p
             raise RuntimeError(f"No free port found in range {start}–{start + 99}")
 
         actual_port = _find_free_port(args.port, args.host)

routes/updates.py

@@ -118,13 +118,34 @@ def apply_update() -> dict:
             "from": chk["current"], "to": chk["latest"]}
 
 
+def _mark_fds_cloexec() -> None:
+    """Mark every fd above stderr close-on-exec.
+
+    Werkzeug calls ``srv.socket.set_inheritable(True)`` unconditionally
+    (for its debug reloader), so without this the listening socket leaks
+    into the exec'd process: it sits on the port as a zombie listener no
+    one accepts from, the port probe sees the port as busy, and the new
+    server hops to port+1 while clients hang against the dead socket.
+    """
+    try:
+        fds = [int(f) for f in os.listdir("/proc/self/fd")]   # Linux
+    except (OSError, ValueError):
+        fds = list(range(3, 4096))
+    for fd in fds:
+        if fd > 2:
+            try:
+                os.set_inheritable(fd, False)
+            except OSError:
+                pass
+
+
 def _restart_self() -> None:
     """Re-exec the current process so the updated code is loaded.
 
     Keeps the same PID, so it works both under systemd and when launched
-    manually via start_gdpr.sh. Listening sockets are close-on-exec, so
+    manually via start_gdpr.sh.
-    the new process can rebind the port.
     """
+    _mark_fds_cloexec()
     try:
         os.execv(sys.executable, [sys.executable] + sys.argv)
     except OSError:

static/js/CLAUDE.md

@@ -65,11 +65,13 @@ Never revert to `!!window._googleConnected` / `_fileSources.length > 0` — thos
 - **`window.VIEWER_MODE`** — injected by Jinja2. `auth.js` adds `viewer-mode` class to `<body>`; all hide rules are CSS (`body.viewer-mode …`) except `delBtn` which is also guarded in JS.
 - **`window.VIEWER_SCOPE`** — injected alongside `VIEWER_MODE`. If `VIEWER_SCOPE.role` is set, `auth.js` pre-sets `#filterRole` and hides the dropdown.
 - **Token onclick attributes** — Copy/Revoke buttons pass the token as a single-quoted JS string literal, never via `JSON.stringify` (which produces double-quoted strings that break `onclick="…"` attributes).
-- **Share link base URL** — `_getShareBaseUrl()` fetches `/api/local_ip` (LAN IP via UDP probe to `8.8.8.8`) so copied links are routable from other machines. Both `createShareLink` and `copyTokenLink` are `async`. Do not revert to `window.location.origin` — that produces `127.0.0.1` links.
+- **Share link base URL** — `_getShareBaseUrl()` uses `window.location.origin` whenever the page is served over HTTPS or from a non-localhost host (a reverse-proxied hostname or LAN IP is already routable, and rewriting it to `http://<LAN-IP>` would bypass the proxy's TLS). Only when browsing at `localhost`/`127.0.0.1` over HTTP does it fetch `/api/local_ip` (LAN IP via UDP probe to `8.8.8.8`) so copied links work from other machines. The result is cached in `_shareBaseUrl` so Copy buttons stay within the click gesture. Both `createShareLink` and `copyTokenLink` are `async`. Do not make it return bare `window.location.origin` unconditionally — that reintroduces unusable `127.0.0.1` links.
 - **Settings Security pane** — Admin PIN and Viewer PIN groups live in `stPaneSecurity`. `switchSettingsTab('security')` triggers both `stLoadPinStatus()` and `stLoadViewerPinStatus()`.
 
 ## Gotchas
 
+- **`navigator.clipboard` is `undefined` over plain HTTP** — the app is normally reached at `http://<LAN-IP>:5100`, a non-secure context where the Clipboard API does not exist, so calling `navigator.clipboard.writeText(...)` throws synchronously (a `.catch()` on it never runs). Always copy via `window._copyText(text, btn)` (defined in `viewer.js`) — it feature-detects the API and falls back to `document.execCommand('copy')`, then to a `prompt()`. Because `execCommand` needs a user gesture, don't `await` network calls between the click and the copy; `_getShareBaseUrl()` caches its result for this reason.
+
 - **`scheduler.js` strings must use `t()`** — frequency labels, "Next", "Running...", "Disabled", empty-job text, and empty-history text all have translation keys. Do not hard-code English strings in `schedLoad()` or `schedRenderJobs()`.
 - **Scheduler UI — `schedToggleReportOnly()`** — dims the Profile row, shows/hides `#schedReportOnlyHint`, and forces `#schedAutoEmail` checked. Called from the checkbox `onchange` handler and at the start of `schedAddJob()` / `schedEditJob()`.
 - **Profile editor accounts** — default to unchecked. Only explicitly saved `user_ids` are checked.

static/js/log.js

@@ -161,10 +161,9 @@ function copyLog() {
   document.querySelectorAll('#logPanel .log-line:not(#logLive)').forEach(function(d) {
     lines.push(d.textContent);
   });
-  navigator.clipboard.writeText(lines.join('\n')).then(function() {
   const btn = document.querySelector('.log-copy-btn');
-    if (btn) { btn.textContent = '✓ Copied'; setTimeout(function(){ btn.textContent = '⎘ Copy'; }, 1500); }
+  // _copyText (viewer.js) handles HTTP contexts where navigator.clipboard is undefined.
-  }).catch(function() {});
+  if (btn) window._copyText(lines.join('\n'), btn);
 }
 
 function _restoreLog() {

static/js/viewer.js

@@ -2,18 +2,32 @@
 // Share button → modal to create, copy, and revoke read-only viewer links.
 import { S } from './state.js';
 
+let _shareBaseUrl = null;   // cached so Copy buttons can build the URL synchronously
+
 async function _getShareBaseUrl() {
-  // Use the machine's LAN IP so links work for remote users, not just localhost.
+  if (_shareBaseUrl) return _shareBaseUrl;
+  // The LAN-IP probe exists only to fix links when the operator browses the
+  // app at localhost — those would be unusable for remote users. Any other
+  // origin (LAN IP, or a reverse-proxied HTTPS hostname) is already routable,
+  // and rewriting it to http://<LAN-IP> would bypass the proxy's TLS.
+  const host = window.location.hostname;
+  if (window.location.protocol === 'https:' ||
+      (host !== 'localhost' && host !== '127.0.0.1' && host !== '[::1]')) {
+    _shareBaseUrl = window.location.origin;
+    return _shareBaseUrl;
+  }
   try {
     const r = await fetch('/api/local_ip');
     if (r.ok) {
       const d = await r.json();
       if (d.ip && d.ip !== '127.0.0.1') {
-        return 'http://' + d.ip + ':' + window.location.port;
+        _shareBaseUrl = 'http://' + d.ip + ':' + window.location.port;
+        return _shareBaseUrl;
       }
     }
   } catch(e) {}
-  return window.location.origin;
+  _shareBaseUrl = window.location.origin;
+  return _shareBaseUrl;
 }
 
 // ── User autocomplete for Share modal ────────────────────────────────────────
@@ -124,9 +138,7 @@ function _shareScopeTypeChanged() {
   if (type === 'user') _initUserAutocomplete();
 }
 
-function openShareModal() {
+function _resetShareForm() {
-  document.getElementById('shareBackdrop').classList.add('open');
-  document.getElementById('shareNewLinkRow').style.display = 'none';
   document.getElementById('shareLabel').value = '';
   document.getElementById('shareExpiry').value = '30';
   const scopeType = document.getElementById('shareScopeType');
@@ -138,6 +150,12 @@ function openShareModal() {
   if (scopeDrop) scopeDrop.style.display = 'none';
   const vf = document.getElementById('shareValidFrom'); if (vf) vf.value = '';
   const vt = document.getElementById('shareValidTo');   if (vt) vt.value = '';
+}
+
+function openShareModal() {
+  document.getElementById('shareBackdrop').classList.add('open');
+  document.getElementById('shareNewLinkRow').style.display = 'none';
+  _resetShareForm();
   _renderTokenList();
   fetch('/api/viewer/pin').then(function(r){ return r.json(); }).then(function(d) {
     const el = document.getElementById('sharePinStatus');
@@ -251,7 +269,7 @@ async function createShareLink() {
     urlInput.value = url;
     document.getElementById('shareNewLinkRow').style.display = 'block';
     document.getElementById('shareCopyBtn').textContent = t('log_copy', 'Copy');
-    document.getElementById('shareLabel').value = '';
+    _resetShareForm();
     _renderTokenList();
   } catch(e) {
     alert(t('share_create_error', 'Failed to create link:') + ' ' + e.message);
@@ -269,25 +287,35 @@ async function copyTokenLink(token, btn) {
 }
 
 function _copyText(text, btn) {
-  navigator.clipboard.writeText(text).then(() => {
+  const done = () => {
     const orig = btn.textContent;
     btn.textContent = t('share_copied', 'Copied!');
     setTimeout(() => { btn.textContent = orig; }, 1800);
-  }).catch(() => {
+  };
-    // Fallback for HTTP contexts
+  // Fallback for HTTP contexts, where navigator.clipboard is undefined
+  // (the Clipboard API only exists in secure contexts — HTTPS or localhost).
+  const fallback = () => {
+    let ok = false;
     try {
       const ta = document.createElement('textarea');
       ta.value = text;
       ta.style.position = 'fixed'; ta.style.opacity = '0';
+      ta.setAttribute('readonly', '');
       document.body.appendChild(ta);
+      ta.focus();
       ta.select();
-      document.execCommand('copy');
+      ok = document.execCommand('copy');
       document.body.removeChild(ta);
-      const orig = btn.textContent;
+    } catch(_) { ok = false; }
-      btn.textContent = t('share_copied', 'Copied!');
+    if (ok) done();
-      setTimeout(() => { btn.textContent = orig; }, 1800);
+    // Last resort: show the link in a prompt so it can be copied manually.
-    } catch(_) {}
+    else prompt(t('share_copy_link_prompt', 'Copy link:'), text);
-  });
+  };
+  if (navigator.clipboard && navigator.clipboard.writeText) {
+    navigator.clipboard.writeText(text).then(done).catch(fallback);
+  } else {
+    fallback();
+  }
 }
 
 async function revokeToken(token, rowEl) {
@@ -475,6 +503,7 @@ window.openShareModal       = openShareModal;
 window.closeShareModal      = closeShareModal;
 window.createShareLink      = createShareLink;
 window.copyShareLink        = copyShareLink;
+window._copyText            = _copyText;
 window.copyTokenLink        = copyTokenLink;
 window.revokeToken          = revokeToken;
 window.stLoadViewerPinStatus  = stLoadViewerPinStatus;

tests/test_updates.py

@@ -188,6 +188,23 @@ def test_apply_installs_requirements_when_changed(client, monkeypatch):
     assert "pip" in pip_calls[0] and "-r" in pip_calls[0]
 
 
+# ── Restart fd hygiene ────────────────────────────────────────────────────────
+
+def test_mark_fds_cloexec_unmarks_inheritable_socket():
+    """Werkzeug sets the listening socket inheritable; the restart must undo
+    that or the socket leaks through execv and squats on the port."""
+    import socket
+    import routes.updates as upd
+    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    try:
+        s.set_inheritable(True)
+        assert s.get_inheritable() is True
+        upd._mark_fds_cloexec()
+        assert s.get_inheritable() is False
+    finally:
+        s.close()
+
+
 # ── /api/update/settings ──────────────────────────────────────────────────────
 
 def test_settings_roundtrip(client, monkeypatch):