feat: add protobuf conversion impls

.generated-sources/blocklist-api/Cargo.toml

@@ -10,6 +10,7 @@ edition = "2021"
 serde = { version = "^1.0", features = ["derive"] }
 serde_with = { version = "^3.8", default-features = false, features = ["base64", "std", "macros"] }
 serde_json = "^1.0"
+serde_repr = "^0.1"
 url = "^2.5"
 uuid = { version = "^1.8", features = ["serde", "v4"] }
 reqwest = { version = "^0.12", features = ["json", "multipart"] }

protobufs/stacks/signer/v1/decisions.proto

@@ -8,20 +8,17 @@ import "stacks/common.proto";
 
 // Represents a decision to accept or reject a deposit request.
 message SignerDepositDecision {
-  // The bitcoin transaction ID of the transaction containing the deposit
-  // request. It must be 32 bytes.
-  bitcoin.BitcoinTxid txid = 1;
-  // Index of the deposit request UTXO.
-  uint32 output_index = 2;
+  // The bitcoin outpoint that uniquely identifies the deposit request.
+  bitcoin.OutPoint outpoint = 1;
   // Whether or not the signer has accepted the deposit request.
-  bool accepted = 3;
+  bool accepted = 2;
   // This specifies whether the sending signer can provide signature shares
   // for the associated deposit request.
-  bool can_sign = 4;
+  bool can_sign = 3;
 }
 
-// Represents a decision to accept or reject a deposit request.
-message SignerWithdrawDecision {
+// Represents a decision to accept or reject a withdrawal request.
+message SignerWithdrawalDecision {
   // ID of the withdraw request.
   uint64 request_id = 1;
   // The Stacks block ID of the Stacks block containing the request. It

signer/src/error.rs

@@ -387,6 +387,10 @@ pub enum Error {
     #[error("observer dropped")]
     ObserverDropped,
 
+    /// A required field in a protobuf type was not set.
+    #[error("a required protobuf field was not set")]
+    RequiredProtobufFieldMissing,
+
     /// Thrown when the recoverable signature has a public key that is
     /// unexpected.
     #[error("unexpected public key from signature. key {0}; digest: {1}")]

signer/src/keys.rs

@@ -28,6 +28,7 @@
 //! [^3]: https://github.com/Trust-Machines/p256k1/blob/3ecb941c1af13741d52335ef911693b6d6fda94b/p256k1/src/scalar.rs#L245-L257
 //! [^4]: https://github.com/bitcoin-core/secp256k1/blob/3fdf146bad042a17f6b2f490ef8bd9d8e774cdbd/src/scalar.h#L31-L36
 
+use std::ops::Deref;
 use std::str::FromStr;
 
 use bitcoin::ScriptBuf;
@@ -44,6 +45,13 @@ use crate::error::Error;
 #[serde(transparent)]
 pub struct PublicKey(secp256k1::PublicKey);
 
+impl Deref for PublicKey {
+    type Target = secp256k1::PublicKey;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
 impl From<&secp256k1::PublicKey> for PublicKey {
     fn from(value: &secp256k1::PublicKey) -> Self {
         Self(*value)