Cover terminal mouse input filtering

src/bin/dosh-client.rs

@@ -5634,13 +5634,14 @@ async fn run_terminal(
                         if bytes.is_empty() {
                             continue;
                         }
-                        if should_strip_unowned_terminal_reports(
+                        let before_mouse_strip = bytes.len();
+                        let (stripped_bytes, stripped_unowned_mouse) = strip_unowned_terminal_reports(
+                            bytes,
                             predictor.alternate_screen,
                             predictor.mouse_tracking,
-                        ) {
-                            let before_mouse_strip = bytes.len();
-                            bytes = strip_stale_mouse_reports(&bytes);
-                            if before_mouse_strip != bytes.len() {
+                        );
+                        bytes = stripped_bytes;
+                        if stripped_unowned_mouse {
                             dosh::trace::event(
                                 "client.unowned_mouse_stripped",
                                 &[
@@ -5649,7 +5650,6 @@ async fn run_terminal(
                                     ("summary", dosh::trace::bytes_summary(&bytes)),
                                 ],
                             );
-                            }
                             if bytes.is_empty() {
                                 continue;
                             }
@@ -6983,6 +6983,20 @@ fn should_strip_unowned_terminal_reports(alternate_screen: bool, mouse_tracking:
     !alternate_screen && !mouse_tracking
 }
 
+fn strip_unowned_terminal_reports(
+    bytes: Vec<u8>,
+    alternate_screen: bool,
+    mouse_tracking: bool,
+) -> (Vec<u8>, bool) {
+    if !should_strip_unowned_terminal_reports(alternate_screen, mouse_tracking) {
+        return (bytes, false);
+    }
+    let before = bytes.len();
+    let stripped = strip_stale_mouse_reports(&bytes);
+    let changed = stripped.len() != before;
+    (stripped, changed)
+}
+
 fn input_contains_focus_in(bytes: &[u8]) -> bool {
     contains_bytes(bytes, b"\x1b[I") || contains_bytes(bytes, b"\x9bI")
 }
@@ -8969,8 +8983,8 @@ mod tests {
         native_proxy_udp_warning, parse_dynamic_forward, parse_escape_key, parse_local_forward,
         parse_remote_forward, parse_ssh_config, parse_trace_line, parse_trace_options,
         parse_trace_report_options, parse_trace_summary, parse_update_options,
-        post_submit_hold_duration, queue_pending_user_input, raw_contains_host_table,
-        recv_response_until, refresh_live_addr, release_tag_download_url,
+        post_submit_hold_duration, queue_pending_user_input, queue_stale_pending_user_input,
+        raw_contains_host_table, recv_response_until, refresh_live_addr, release_tag_download_url,
         release_tag_from_effective_url, release_version_from_tag, render_status_clear,
         render_status_overlay, requested_env, resolved_startup_command, retire_stream_state,
         retransmit_stream_opens, rewrite_forward_command, sanitize_trace_name,
@@ -8980,10 +8994,10 @@ mod tests {
         should_strip_unowned_terminal_reports, split_after_command_submit, split_trace_tokens,
         ssh_command_target, ssh_config_uses_proxy, ssh_destination_host, ssh_username,
         ssh_with_user, startup_command, status_ssh_target, strip_stale_mouse_reports,
-        strip_terminal_focus_reports, summarize_trace_file, terminal_private_mode_transition,
-        toml_bare_key_or_quoted, top_trace_events, trace_report_warnings, unix_update_script,
-        update_installer_url, update_version_status, upsert_managed_block, valid_forward_host,
-        vscode_safe_alias, windows_update_script,
+        strip_terminal_focus_reports, strip_unowned_terminal_reports, summarize_trace_file,
+        terminal_private_mode_transition, toml_bare_key_or_quoted, top_trace_events,
+        trace_report_warnings, unix_update_script, update_installer_url, update_version_status,
+        upsert_managed_block, valid_forward_host, vscode_safe_alias, windows_update_script,
     };
     use dosh::config::{ClientConfig, CommandExtension, HostConfig};
     use dosh::native::EnvVar;
@@ -10817,6 +10831,47 @@ mod tests {
         assert_eq!(pending_bytes, MAX_PENDING_USER_INPUT_BYTES);
     }
 
+    #[test]
+    fn stale_pending_user_input_is_marked_for_mouse_stripping() {
+        let mut pending = VecDeque::new();
+        let mut pending_bytes = 0usize;
+
+        queue_pending_user_input(&mut pending, &mut pending_bytes, b"\x1b[<35;10;1M".to_vec())
+            .unwrap();
+        queue_stale_pending_user_input(
+            &mut pending,
+            &mut pending_bytes,
+            b"\x1b[<35;11;1M".to_vec(),
+        )
+        .unwrap();
+
+        let normal = pending.pop_front().unwrap();
+        assert!(!normal.strip_mouse_reports);
+        assert_eq!(strip_stale_mouse_reports(&normal.bytes), b"");
+
+        let stale = pending.pop_front().unwrap();
+        assert!(stale.strip_mouse_reports);
+        assert_eq!(strip_stale_mouse_reports(&stale.bytes), b"");
+    }
+
+    #[test]
+    fn unowned_terminal_mouse_reports_strip_only_without_mouse_owner() {
+        let input = b"\x1b[<35;10;1Mcmd\r".to_vec();
+
+        let (stripped, changed) = strip_unowned_terminal_reports(input.clone(), false, false);
+        assert!(changed);
+        assert_eq!(stripped, b"cmd\r");
+
+        let (preserved, changed) = strip_unowned_terminal_reports(input.clone(), false, true);
+        assert!(!changed);
+        assert_eq!(preserved, input);
+
+        let (preserved, changed) =
+            strip_unowned_terminal_reports(b"\x1b[<35;10;1M".to_vec(), true, false);
+        assert!(!changed);
+        assert_eq!(preserved, b"\x1b[<35;10;1M");
+    }
+
     #[test]
     fn transient_udp_send_errors_are_not_terminal_fatal() {
         #[cfg(unix)]