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a2ui-server: sealed transport on ogar-encryption; refuse reflected frames #53

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Merged
AdaWorldAPI merged 1 commit into from
Oct 15, 2026
Merged

a2ui-server: sealed transport on ogar-encryption; refuse reflected frames #53

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113 changes: 80 additions & 33 deletions Cargo.lock
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41 changes: 25 additions & 16 deletions crates/a2ui-server/src/desktop.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -267,7 +267,10 @@ impl DesktopSession {
fmt,
)
.map_err(DesktopError::Projection)?;
let sealed = self.down.seal_frame(&Frame::NodeDelta(projection.delta));
let sealed = self
.down
.seal_frame(&Frame::NodeDelta(projection.delta))
.map_err(DesktopError::Transport)?;
Ok(RenderedFrame {
sealed,
html: projection.html,
Expand Down Expand Up @@ -455,11 +458,13 @@ mod tests {
let key = key_0102();
// The client seals an ActionInvoke (ordinal 1 = "Post") up the wire.
let mut client_up = SealedTransport::new(srv.session_key(), Direction::ClientToServer);
let sealed = client_up.seal_frame(&CoreFrame::ActionInvoke(ActionInvoke {
key,
action_ordinal: 1,
args: vec![],
}));
let sealed = client_up
.seal_frame(&CoreFrame::ActionInvoke(ActionInvoke {
key,
action_ordinal: 1,
args: vec![],
}))
.unwrap();

let resolved = srv.receive_action(&sealed).unwrap();
assert_eq!(resolved.predicate, "action_post");
Expand All @@ -474,11 +479,13 @@ mod tests {
assert_eq!(edges[0].seq, 0);

// A second click advances the sequence; take_klickwege drains.
let sealed2 = client_up.seal_frame(&CoreFrame::ActionInvoke(ActionInvoke {
key,
action_ordinal: 0,
args: vec![],
}));
let sealed2 = client_up
.seal_frame(&CoreFrame::ActionInvoke(ActionInvoke {
key,
action_ordinal: 0,
args: vec![],
}))
.unwrap();
srv.receive_action(&sealed2).unwrap();
let drained = srv.take_klickwege();
assert_eq!(drained.len(), 2);
Expand All @@ -504,11 +511,13 @@ mod tests {
fn tampered_up_frame_is_refused_no_klickweg_recorded() {
let mut srv = server();
let mut client_up = SealedTransport::new(srv.session_key(), Direction::ClientToServer);
let mut sealed = client_up.seal_frame(&CoreFrame::ActionInvoke(ActionInvoke {
key: key_0102(),
action_ordinal: 0,
args: vec![],
}));
let mut sealed = client_up
.seal_frame(&CoreFrame::ActionInvoke(ActionInvoke {
key: key_0102(),
action_ordinal: 0,
args: vec![],
}))
.unwrap();
let n = sealed.len();
sealed[n - 1] ^= 0x01; // flip a tag bit
assert!(matches!(
Expand Down
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