Fix/session scope permission audit (#15469)

* fix: enforce session-scoped permissions

Restrict non-remote sessions to their allowed message types, filter
out-of-scope login options, and audit rejected or filtered messages.
Hide screenshot controls outside default remote sessions.

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: typo

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: prevent privacy mode in view-camera sessions

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: switch display, check non-view-camera

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: avoid sending unsupported messages

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: session scope, add option to control close/alarm

Signed-off-by: fufesou <linlong1266@gmail.com>

* Fix: scoped session handling for view-camera compatibility

  - Skip view-camera auto-login and display-management side effects
  - Allow harmless render broadcasts without affecting non-video sessions
  - Keep legacy view-camera management messages compatible as no-ops
  - Preserve stricter scope violations for non-video session types

Signed-off-by: fufesou <linlong1266@gmail.com>

* update libs/hbb_common

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: ignore repeated login request

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: view camera, support "Take screenshot"

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: session scoped messages, check update options

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: session scope, check portforward before conn type voolations

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: scoped messages, reduce changes.

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: session scope, comments

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: keep scoped sessions compatible with render broadcasts

Allow legacy render-broadcast no-op messages for file transfer and terminal
sessions while keeping port forward and mixed options scoped. Also avoid sending
new render updates to non-video Flutter sessions.

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: scope screenshot requests by video source

Key screenshot requests by video source and display index so camera and
monitor sessions cannot consume each other's requests. Deduplicate the Flutter
render-target predicate while keeping render updates limited to video sessions.

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: Harden scoped session message handling

Filter option updates by authenticated connection type,
keep legacy no-op messages compatible, and avoid noisy repeated
scope violation alarms.

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: session scope, comments

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: Send close reason for scoped session violations

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: Enforce scoped session message filtering

  - filter out-of-scope messages for limited session types
  - scope option updates by authenticated connection type
  - keep render-broadcast no-op compatibility for non-video scoped sessions
  - restore view-camera screenshot handling
  - improve session scope violation audit labels
  - avoid cloning option messages on the remote hot path

Signed-off-by: fufesou <linlong1266@gmail.com>

* Fix scoped session clipboard broadcast compatibility

Treat text clipboard broadcasts as no-op compatibility messages for FileTransfer and Terminal sessions, matching existing
handler behavior and preventing optional scope-violation close from disconnecting those sessions. Keep ViewCamera and
PortForward clipboard messages subject to normal scope enforcement.

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: log warn

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: restrict Flutter clipboard sync to default sessions

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: session scope, comments and tests

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: session scope, reset sessions in login handle

Signed-off-by: fufesou <linlong1266@gmail.com>

* fix: session scope, view camera, allow clipboard noop

Signed-off-by: fufesou <linlong1266@gmail.com>

---------

Signed-off-by: fufesou <linlong1266@gmail.com>

src/flutter.rs

@@ -1437,7 +1437,7 @@ fn try_send_close_event(event_stream: &Option<StreamSink<EventToUI>>) {
 pub fn update_text_clipboard_required() {
     let is_required = sessions::get_sessions()
         .iter()
-        .any(|s| s.is_text_clipboard_required());
+        .any(|s| s.is_default() && s.is_text_clipboard_required());
     #[cfg(target_os = "android")]
     let _ = scrap::android::ffi::call_clipboard_manager_enable_client_clipboard(is_required);
     Client::set_is_text_clipboard_required(is_required);
@@ -1447,13 +1447,16 @@ pub fn update_text_clipboard_required() {
 pub fn update_file_clipboard_required() {
     let is_required = sessions::get_sessions()
         .iter()
-        .any(|s| s.is_file_clipboard_required());
+        .any(|s| s.is_default() && s.is_file_clipboard_required());
     Client::set_is_file_clipboard_required(is_required);
 }
 
 #[cfg(not(target_os = "ios"))]
 pub fn send_clipboard_msg(msg: Message, _is_file: bool) {
     for s in sessions::get_sessions() {
+        if !s.is_default() {
+            continue;
+        }
         #[cfg(feature = "unix-file-copy-paste")]
         if _is_file {
             if crate::is_support_file_copy_paste_num(s.lc.read().unwrap().version)