fix(rust/cardano-chain-follower): Update RBAC 509 API (#50)

* fix(rust/cardano-chain-follower): make KeyLocalRef fields public

* feat(rust/cardano-chain-follower): make extract_cip19_hash public

* fix(rust/cardano-chain-follower): code format

Author: saibatizoku

rust/cardano-chain-follower/src/metadata/cip509/mod.rs

@@ -5,10 +5,10 @@
 // cspell: words pkix
 
 pub mod rbac;
+pub mod utils;
 pub mod x509_chunks;
 
 mod decode_helper;
-mod utils;
 
 use std::sync::Arc;
 

rust/cardano-chain-follower/src/metadata/cip509/rbac/role_data.rs

@@ -112,15 +112,15 @@ impl Decode<'_, ()> for KeyReference {
 #[derive(Debug, PartialEq, Clone)]
 pub struct KeyLocalRef {
     /// Local reference.
-    local_ref: LocalRefInt,
+    pub local_ref: LocalRefInt,
     /// Key offset.
-    key_offset: u64,
+    pub key_offset: u64,
 }
 
 /// Enum of local reference with its associated unsigned integer value.
 #[derive(FromRepr, Debug, PartialEq, Clone)]
 #[repr(u8)]
-enum LocalRefInt {
+pub enum LocalRefInt {
     /// x509 certificates.
     X509Certs = Cip509RbacMetadataInt::X509Certs as u8, // 10
     /// c509 certificates.

rust/cardano-chain-follower/src/metadata/cip509/utils.rs

@@ -7,7 +7,8 @@ use crate::witness::TxWitness;
 /// Example input: `web+cardano://addr/<cip-19 address string>`
 /// <https://github.com/cardano-foundation/CIPs/tree/6bae5165dde5d803778efa5e93bd408f3317ca03/CPS-0016>
 /// URI = scheme ":" ["//" authority] path ["?" query] ["#" fragment]
-pub(crate) fn extract_cip19_hash(uri: &str, prefix: Option<&str>) -> Option<Vec<u8>> {
+#[must_use]
+pub fn extract_cip19_hash(uri: &str, prefix: Option<&str>) -> Option<Vec<u8>> {
     // Regex pattern to match the expected URI format
     let r = Regex::new("^.+://addr/(.+)$").ok()?;