v0.3.13-pre.002

crates/ksp-onchain-transport-lib/src/grpc_subscribe.rs

@@ -1,5 +1,5 @@
 // file: crates/ksp-onchain-transport-lib/src/grpc_subscribe.rs
-// version: 8
+// version: 9
 
 const MAX_GRPC_BLOCKHASH_TEXT_LENGTH_BYTES: usize = 128;
 const MAX_GRPC_BLOCK_VECTOR_COUNT: usize = 65_536;
@@ -2529,13 +2529,34 @@ impl YellowstoneSubscribeEntryFilter {
     }
 }
 
+/// Opaque deterministic identity material for one complete Yellowstone Subscribe request.
+///
+/// The encoded bytes remain private. `Hash` feeds those canonical bytes to a caller-provided hasher while `Debug` exposes only their length.
+#[derive(Clone, Eq, PartialEq)]
+pub struct YellowstoneSubscribeRequestIdentity {
+    bytes: std::vec::Vec<u8>,
+}
+
+impl std::hash::Hash for crate::YellowstoneSubscribeRequestIdentity {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        state.write(&(self.bytes.len() as u64).to_be_bytes());
+        state.write(self.bytes.as_slice());
+        return;
+    }
+}
+
+impl std::fmt::Debug for crate::YellowstoneSubscribeRequestIdentity {
+    fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        return formatter.debug_struct("YellowstoneSubscribeRequestIdentity").field("byte_len", &self.bytes.len()).finish();
+    }
+}
+
 /// Provider-neutral standard Yellowstone subscribe request owned by KSP.
 ///
 /// The seven upstream maps are represented independently and retain named empty entries. An entirely empty map is the logical KSP representation of no active
 /// filter in that family; protobuf map encoding does not distinguish an omitted map from an empty map. Filter-group names are globally unique across all seven
 /// maps so the names echoed by `SubscribeUpdate.filters` remain unambiguous. `Debug` exposes only counts and common scalar options, never filter names or
-/// future
-/// filter payloads.
+/// future filter payloads.
 #[derive(Clone, Eq, PartialEq)]
 pub struct YellowstoneSubscribeRequest {
     accounts: std::collections::BTreeMap<crate::YellowstoneSubscribeFilterName, crate::YellowstoneSubscribeAccountFilter>,
@@ -2551,7 +2572,7 @@ pub struct YellowstoneSubscribeRequest {
     from_slot: std::option::Option<u64>,
 }
 
-impl YellowstoneSubscribeRequest {
+impl crate::YellowstoneSubscribeRequest {
     /// Creates an empty subscribe request. Empty requests are valid because later bidi lifecycle code uses request mutations to clear filters or carry ping
     /// state.
     #[must_use]
@@ -2762,6 +2783,40 @@ impl YellowstoneSubscribeRequest {
         return self.from_slot;
     }
 
+    /// Builds one opaque deterministic identity for the complete logical Subscribe request.
+    ///
+    /// The identity preserves filter-family separation, globally sorted filter names, exact filter wire payloads and common request options. Its Debug surface
+    /// exposes only the encoded byte length. Callers may hash the opaque value but cannot recover the underlying identity bytes through this API.
+    pub fn identity(&self) -> ksp_core_lib::Result<crate::YellowstoneSubscribeRequestIdentity> {
+        let validation = self.validate();
+        if let std::result::Result::Err(error) = validation {
+            return std::result::Result::Err(error);
+        }
+        let mut bytes = std::vec::Vec::new();
+        append_subscribe_identity_map(&mut bytes, b"accounts", &self.accounts, |filter| return filter.to_wire());
+        append_subscribe_identity_map(&mut bytes, b"blocks", &self.blocks, |filter| return filter.to_wire());
+        append_subscribe_identity_map(&mut bytes, b"blocks_meta", &self.blocks_meta, |filter| return filter.to_wire());
+        append_subscribe_identity_map(&mut bytes, b"entry", &self.entry, |filter| return filter.to_wire());
+        append_subscribe_identity_map(&mut bytes, b"slots", &self.slots, |filter| return filter.to_wire());
+        append_subscribe_identity_map(&mut bytes, b"transactions", &self.transactions, |filter| return filter.to_wire());
+        append_subscribe_identity_map(&mut bytes, b"transactions_status", &self.transactions_status, |filter| return filter.to_wire());
+        let mut common = match self.to_wire() {
+            std::result::Result::Ok(value) => value,
+            std::result::Result::Err(error) => return std::result::Result::Err(error),
+        };
+        common.accounts.clear();
+        common.blocks.clear();
+        common.blocks_meta.clear();
+        common.entry.clear();
+        common.slots.clear();
+        common.transactions.clear();
+        common.transactions_status.clear();
+        let common = yellowstone_grpc_proto::prost::Message::encode_to_vec(&common);
+        append_subscribe_identity_component(&mut bytes, b"common");
+        append_subscribe_identity_component(&mut bytes, common.as_slice());
+        return std::result::Result::Ok(crate::YellowstoneSubscribeRequestIdentity { bytes });
+    }
+
     /// Validates all deterministic common subscribe-request bounds before any network I/O.
     pub fn validate(&self) -> ksp_core_lib::Result<()> {
         if self.total_filter_count() > MAX_GRPC_SUBSCRIBE_FILTER_GROUP_COUNT {
@@ -3710,13 +3765,38 @@ fn commitment_to_wire(commitment: std::option::Option<crate::SolanaCommitment>)
     });
 }
 
-impl std::default::Default for YellowstoneSubscribeRequest {
+fn append_subscribe_identity_component(output: &mut std::vec::Vec<u8>, value: &[u8]) {
+    output.extend_from_slice(&(value.len() as u64).to_be_bytes());
+    output.extend_from_slice(value);
+    return;
+}
+
+fn append_subscribe_identity_map<V, W, F>(
+    output: &mut std::vec::Vec<u8>,
+    family: &[u8],
+    values: &std::collections::BTreeMap<crate::YellowstoneSubscribeFilterName, V>,
+    mut to_wire: F,
+) where
+    W: yellowstone_grpc_proto::prost::Message,
+    F: FnMut(&V) -> W,
+{
+    append_subscribe_identity_component(output, family);
+    output.extend_from_slice(&(values.len() as u64).to_be_bytes());
+    for (name, filter) in values {
+        append_subscribe_identity_component(output, name.as_str().as_bytes());
+        let wire = yellowstone_grpc_proto::prost::Message::encode_to_vec(&to_wire(filter));
+        append_subscribe_identity_component(output, wire.as_slice());
+    }
+    return;
+}
+
+impl std::default::Default for crate::YellowstoneSubscribeRequest {
     fn default() -> Self {
         return Self::new();
     }
 }
 
-impl std::fmt::Debug for YellowstoneSubscribeRequest {
+impl std::fmt::Debug for crate::YellowstoneSubscribeRequest {
     fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         return formatter
             .debug_struct("YellowstoneSubscribeRequest")