From f3237616a0bc95cf50fd790f07b72128c624b947 Mon Sep 17 00:00:00 2001
From: cai <cai@nbcai.cc>
Date: Wed, 12 Aug 2026 12:41:44 +0800
Subject: [PATCH] Bind fixture ACK evidence to probe hashes

---
 src/asr_realtime.rs |  192 +++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 191 insertions(+), 1 deletions(-)

diff --git a/src/asr_realtime.rs b/src/asr_realtime.rs
index 9358d23..ad99ff2 100644
--- a/src/asr_realtime.rs
+++ b/src/asr_realtime.rs
@@ -37,6 +37,51 @@
 }
 
 impl AudioIngressMetadata {
+    pub(crate) const ORIGIN_STATUSES: [&'static str; 8] = [
+        "controlled_fixture_bound",
+        "ordinary_mic_absent",
+        "participant_attributes_absent",
+        "participant_attributes_invalid",
+        "sequence_absent",
+        "sequence_replayed_or_regressed",
+        "wrong_participant_or_track",
+        "origin_unprovable",
+    ];
+
+    pub(crate) fn origin_status(attributes: &HashMap<String, String>) -> &'static str {
+        let source = attributes.get("inputSourceCategory").map(String::as_str);
+        let sequence = attributes.get("clientFixtureSequence").map(String::as_str);
+        match (source, sequence) {
+            (None, None) => "ordinary_mic_absent",
+            (Some("controlled_fixture"), Some(sequence)) if valid_sequence(sequence) => {
+                "controlled_fixture_bound"
+            }
+            (Some("controlled_fixture"), None) => "sequence_absent",
+            (Some("controlled_fixture"), Some(_)) => "participant_attributes_invalid",
+            (Some(_), _) | (None, Some(_)) => "participant_attributes_invalid",
+        }
+    }
+
+    pub(crate) fn rejection_status(reason: &str) -> &'static str {
+        match reason {
+            "incomplete_metadata" => "participant_attributes_absent",
+            "invalid_source_or_sequence" => "participant_attributes_invalid",
+            _ => "origin_unprovable",
+        }
+    }
+
+    pub(crate) fn rejected_origin_status(
+        reason: &str,
+        attributes: &HashMap<String, String>,
+    ) -> &'static str {
+        let status = Self::origin_status(attributes);
+        if status == "sequence_absent" {
+            status
+        } else {
+            Self::rejection_status(reason)
+        }
+    }
+
     pub(crate) fn from_participant(
         attributes: &HashMap<String, String>,
     ) -> Result<Option<Self>, &'static str> {
@@ -93,6 +138,31 @@
 }
 
 impl RealtimeAsrUpload {
+    pub(crate) fn start_with_participant_attributes<F>(
+        http: Client,
+        config: RealtimeAsrConfig,
+        call_id: &str,
+        trace_id: &str,
+        turn_id: &str,
+        initial_samples_48k: &[i16],
+        read_attributes: F,
+    ) -> Result<Self>
+    where
+        F: FnOnce() -> HashMap<String, String>,
+    {
+        let metadata = AudioIngressMetadata::from_participant(&read_attributes())
+            .map_err(|reason| anyhow!(reason))?;
+        Self::start(
+            http,
+            config,
+            call_id,
+            trace_id,
+            turn_id,
+            initial_samples_48k,
+            metadata.as_ref(),
+        )
+    }
+
     pub(crate) fn start(
         http: Client,
         config: RealtimeAsrConfig,
@@ -325,7 +395,7 @@
     samples: Vec<i16>,
 }
 
-fn session_start_line(
+pub(crate) fn session_start_line(
     call_id: &str,
     trace_id: &str,
     turn_id: &str,
@@ -348,6 +418,10 @@
         line["inputSourceCategory"] = json!(metadata.input_source_category);
         line["clientFixtureSequence"] = json!(metadata.client_fixture_sequence);
     }
+    line["audioIngressOriginStatus"] = json!(match ingress_metadata {
+        Some(_) => "controlled_fixture_bound",
+        None => "ordinary_mic_absent",
+    });
     encode_line(line)
 }
 
@@ -458,6 +532,7 @@
         assert_eq!("pcm_s16le", value["audio"]["format"]);
         assert_eq!(16000, value["audio"]["sampleRate"]);
         assert_eq!(1, value["audio"]["channels"]);
+        assert_eq!("ordinary_mic_absent", value["audioIngressOriginStatus"]);
     }
 
     #[test]
@@ -480,6 +555,10 @@
             }),
             metadata
         );
+        assert_eq!(
+            "controlled_fixture_bound",
+            AudioIngressMetadata::origin_status(&attributes)
+        );
 
         attributes.insert(
             "clientFixtureSequence".to_string(),
@@ -493,6 +572,52 @@
             Ok(None),
             AudioIngressMetadata::from_participant(&HashMap::new())
         );
+        attributes.remove("clientFixtureSequence");
+        assert_eq!(
+            "sequence_absent",
+            AudioIngressMetadata::origin_status(&attributes)
+        );
+        attributes.insert(
+            "clientFixtureSequence".to_string(),
+            "bad sequence".to_string(),
+        );
+        assert_eq!(
+            "participant_attributes_invalid",
+            AudioIngressMetadata::origin_status(&attributes)
+        );
+        assert_eq!(
+            "ordinary_mic_absent",
+            AudioIngressMetadata::origin_status(&HashMap::new())
+        );
+        assert_eq!(
+            "participant_attributes_absent",
+            AudioIngressMetadata::rejection_status("incomplete_metadata")
+        );
+        assert_eq!(
+            "participant_attributes_invalid",
+            AudioIngressMetadata::rejection_status("invalid_source_or_sequence")
+        );
+        assert_eq!(
+            "origin_unprovable",
+            AudioIngressMetadata::rejection_status("sequence_replayed")
+        );
+        assert_eq!(
+            "origin_unprovable",
+            AudioIngressMetadata::rejection_status("wrong_participant")
+        );
+        assert_eq!(
+            "origin_unprovable",
+            AudioIngressMetadata::rejection_status("unknown")
+        );
+        let missing_sequence = HashMap::from([(
+            "inputSourceCategory".to_string(),
+            "controlled_fixture".to_string(),
+        )]);
+        assert_eq!(
+            "sequence_absent",
+            AudioIngressMetadata::rejected_origin_status("incomplete_metadata", &missing_sequence)
+        );
+        assert_eq!(8, AudioIngressMetadata::ORIGIN_STATUSES.len());
     }
 
     #[test]
@@ -507,6 +632,7 @@
         )
         .expect("absent json");
         assert!(absent.get("inputSourceCategory").is_none());
+        assert_eq!("ordinary_mic_absent", absent["audioIngressOriginStatus"]);
         let with_metadata = serde_json::from_slice::<serde_json::Value>(
             &session_start_line(
                 "call-001",
@@ -520,6 +646,10 @@
         .expect("bound json");
         assert_eq!("controlled_fixture", with_metadata["inputSourceCategory"]);
         assert_eq!("fixture-01", with_metadata["clientFixtureSequence"]);
+        assert_eq!(
+            "controlled_fixture_bound",
+            with_metadata["audioIngressOriginStatus"]
+        );
         let next = AudioIngressMetadata {
             input_source_category: "controlled_fixture".to_string(),
             client_fixture_sequence: "fixture-02".to_string(),
@@ -540,6 +670,66 @@
         );
     }
 
+    #[tokio::test]
+    async fn production_session_boundary_reads_updated_attributes_per_session() {
+        let mut attributes = HashMap::new();
+        attributes.insert(
+            "inputSourceCategory".to_string(),
+            "controlled_fixture".to_string(),
+        );
+        attributes.insert(
+            "clientFixtureSequence".to_string(),
+            "fixture-01".to_string(),
+        );
+        let (url1, captured1, server1) =
+            spawn_http_fixture(json!({"code": 0, "data": {"status": "cancelled"}}).to_string());
+        let upload1 = RealtimeAsrUpload::start_with_participant_attributes(
+            Client::new(),
+            fixture_config(url1),
+            "call-001",
+            "trace-001",
+            "turn-0001",
+            &vec![1; 9_600],
+            || attributes.clone(),
+        )
+        .expect("session one");
+        upload1.cancel("test").await;
+        let request1 = captured1.recv().expect("session one request");
+        server1.join().expect("session one server");
+        assert!(
+            request1
+                .body
+                .contains("\"clientFixtureSequence\":\"fixture-01\"")
+        );
+        assert!(!request1.body.contains("fixture-02"));
+
+        attributes.insert(
+            "clientFixtureSequence".to_string(),
+            "fixture-02".to_string(),
+        );
+        let (url2, captured2, server2) =
+            spawn_http_fixture(json!({"code": 0, "data": {"status": "cancelled"}}).to_string());
+        let upload2 = RealtimeAsrUpload::start_with_participant_attributes(
+            Client::new(),
+            fixture_config(url2),
+            "call-001",
+            "trace-001",
+            "turn-0002",
+            &vec![1; 9_600],
+            || attributes.clone(),
+        )
+        .expect("session two");
+        upload2.cancel("test").await;
+        let request2 = captured2.recv().expect("session two request");
+        server2.join().expect("session two server");
+        assert!(
+            request2
+                .body
+                .contains("\"clientFixtureSequence\":\"fixture-02\"")
+        );
+        assert!(!request2.body.contains("fixture-01"));
+    }
+
     #[test]
     fn maximum_audio_chunk_stays_within_java_line_limit() {
         let line = audio_chunk_line(1, &vec![0; 8_000]).expect("maximum chunk line");

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