Support cosmos contract byte lengths other than 32 (hyperlane-xyz#3147)

### Description

fixes hyperlane-xyz#3143 

Initially went down a path that would use protocol-specific types for
addresses as suggested by hyperlane-xyz#3143. I had made a `HyperlaneConnectionConf`
enum with protocol-specific variants whose values were `addresses:
CoreContractAddresses<ProtocolSpecificAddressType>` and `connection:
ProtocolSpecificConnectionConf`. This worked pretty well until I hit the
ISM logic.

Because hyperlane-core is where the Mailbox trait is defined, the return
type of `recipient_ism` in the trait cannot involve protocol specific
types. It can't be moved to hyperlane-base because hyperlane-base
imports the chain crates, so we'd have a cyclic dependency. I
experimented with moving away from H256 to something like a Vec<u8> or
string, but this felt a bit weird.

In the end we decided to keep H256s as the global representation for
contract addresses for now, with the intent of eventually changing this,
and to support the varying length situation in a cosmos config

### Drive-by changes

- Added some cosmos specific agent configurations into the sdk
- Moved to bech32_prefix in the agents for consistency with what the
SDK's chain metadata already does
- I guess no one's ran cargo test in a while so vectors/message.json got
a new v3 message lol

### Related issues

Fixes hyperlane-xyz#3143 

### Backward compatibility

Changes prefix to bech32_prefix in the agent config, and now requires
`contractAddressBytes`

### Testing

Tested merged with hyperlane-xyz#3144 and all worked

---------

Co-authored-by: Daniel Savu <[email protected]>

rust/chains/hyperlane-cosmos/src/libs/address.rs

@@ -48,9 +48,21 @@ impl CosmosAddress {
     ///
     /// - digest: H256 digest (hex representation of address)
     /// - prefix: Bech32 prefix
-    pub fn from_h256(digest: H256, prefix: &str) -> ChainResult<Self> {
+    /// - byte_count: Number of bytes to truncate the digest to. Cosmos addresses can sometimes
+    ///     be less than 32 bytes, so this helps to serialize it in bech32 with the appropriate
+    ///     length.
+    pub fn from_h256(digest: H256, prefix: &str, byte_count: usize) -> ChainResult<Self> {
         // This is the hex-encoded version of the address
-        let bytes = digest.as_bytes();
+        let untruncated_bytes = digest.as_bytes();
+
+        if byte_count > untruncated_bytes.len() {
+            return Err(Overflow.into());
+        }
+
+        let remainder_bytes_start = untruncated_bytes.len() - byte_count;
+        // Left-truncate the digest to the desired length
+        let bytes = &untruncated_bytes[remainder_bytes_start..];
+
         // Bech32 encode it
         let account_id =
             AccountId::new(prefix, bytes).map_err(Into::<HyperlaneCosmosError>::into)?;
@@ -132,22 +144,33 @@ pub mod test {
             addr.address(),
             "neutron1kknekjxg0ear00dky5ykzs8wwp2gz62z9s6aaj"
         );
-        // TODO: watch out for this edge case. This check will fail unless
-        // the first 12 bytes are removed from the digest.
-        // let digest = addr.digest();
-        // let addr2 = CosmosAddress::from_h256(digest, prefix).expect("Cosmos address creation failed");
-        // assert_eq!(addr.address(), addr2.address());
+
+        // Create an address with the same digest & explicitly set the byte count to 20,
+        // which should have the same result as the above.
+        let digest = addr.digest();
+        let addr2 =
+            CosmosAddress::from_h256(digest, prefix, 20).expect("Cosmos address creation failed");
+        assert_eq!(addr.address(), addr2.address());
     }
 
     #[test]
     fn test_bech32_encode_from_h256() {
         let hex_key = "0x1b16866227825a5166eb44031cdcf6568b3e80b52f2806e01b89a34dc90ae616";
         let key = hex_or_base58_to_h256(hex_key).unwrap();
         let prefix = "dual";
-        let addr = CosmosAddress::from_h256(key, prefix).expect("Cosmos address creation failed");
+        let addr =
+            CosmosAddress::from_h256(key, prefix, 32).expect("Cosmos address creation failed");
         assert_eq!(
             addr.address(),
             "dual1rvtgvc38sfd9zehtgsp3eh8k269naq949u5qdcqm3x35mjg2uctqfdn3yq"
         );
+
+        // Last 20 bytes only, which is 0x1cdcf6568b3e80b52f2806e01b89a34dc90ae616
+        let addr =
+            CosmosAddress::from_h256(key, prefix, 20).expect("Cosmos address creation failed");
+        assert_eq!(
+            addr.address(),
+            "dual1rnw0v45t86qt2tegqmsphzdrfhys4esk9ktul7"
+        );
     }
 }

rust/chains/hyperlane-cosmos/src/mailbox.rs

@@ -64,8 +64,12 @@ impl CosmosMailbox {
     }
 
     /// Prefix used in the bech32 address encoding
-    pub fn prefix(&self) -> String {
-        self.config.get_prefix()
+    pub fn bech32_prefix(&self) -> String {
+        self.config.get_bech32_prefix()
+    }
+
+    fn contract_address_bytes(&self) -> usize {
+        self.config.get_contract_address_bytes()
     }
 }
 
@@ -151,7 +155,12 @@ impl Mailbox for CosmosMailbox {
 
     #[instrument(err, ret, skip(self))]
     async fn recipient_ism(&self, recipient: H256) -> ChainResult<H256> {
-        let address = CosmosAddress::from_h256(recipient, &self.prefix())?.address();
+        let address = CosmosAddress::from_h256(
+            recipient,
+            &self.bech32_prefix(),
+            self.contract_address_bytes(),
+        )?
+        .address();
 
         let payload = mailbox::RecipientIsmRequest {
             recipient_ism: mailbox::RecipientIsmRequestInner {

rust/chains/hyperlane-cosmos/src/providers/grpc.rs

@@ -112,7 +112,13 @@ impl WasmGrpcProvider {
             Endpoint::new(conf.get_grpc_url()).map_err(Into::<HyperlaneCosmosError>::into)?;
         let channel = endpoint.connect_lazy();
         let contract_address = locator
-            .map(|l| CosmosAddress::from_h256(l.address, &conf.get_prefix()))
+            .map(|l| {
+                CosmosAddress::from_h256(
+                    l.address,
+                    &conf.get_bech32_prefix(),
+                    conf.get_contract_address_bytes(),
+                )
+            })
             .transpose()?;
 
         Ok(Self {

rust/chains/hyperlane-cosmos/src/providers/rpc.rs

@@ -76,7 +76,8 @@ impl CosmosWasmIndexer {
             provider,
             contract_address: CosmosAddress::from_h256(
                 locator.address,
-                conf.get_prefix().as_str(),
+                conf.get_bech32_prefix().as_str(),
+                conf.get_contract_address_bytes(),
             )?,
             target_event_kind: format!("{}-{}", Self::WASM_TYPE, event_type),
             reorg_period,

rust/chains/hyperlane-cosmos/src/trait_builder.rs

@@ -12,14 +12,18 @@ pub struct ConnectionConf {
     rpc_url: String,
     /// The chain ID
     chain_id: String,
-    /// The prefix for the account address
-    prefix: String,
+    /// The human readable address prefix for the chains using bech32.
+    bech32_prefix: String,
     /// Canoncial Assets Denom
     canonical_asset: String,
     /// The gas price set by the cosmos-sdk validator. Note that this represents the
     /// minimum price set by the validator.
     /// More details here: https://docs.cosmos.network/main/learn/beginner/gas-fees#antehandler
     gas_price: RawCosmosAmount,
+    /// The number of bytes used to represent a contract address.
+    /// Cosmos address lengths are sometimes less than 32 bytes, so this helps to serialize it in
+    /// bech32 with the appropriate length.
+    contract_address_bytes: usize,
 }
 
 /// Untyped cosmos amount
@@ -86,9 +90,9 @@ impl ConnectionConf {
         self.chain_id.clone()
     }
 
-    /// Get the prefix
-    pub fn get_prefix(&self) -> String {
-        self.prefix.clone()
+    /// Get the bech32 prefix
+    pub fn get_bech32_prefix(&self) -> String {
+        self.bech32_prefix.clone()
     }
 
     /// Get the asset
@@ -101,22 +105,29 @@ impl ConnectionConf {
         self.gas_price.clone()
     }
 
+    /// Get the number of bytes used to represent a contract address
+    pub fn get_contract_address_bytes(&self) -> usize {
+        self.contract_address_bytes
+    }
+
     /// Create a new connection configuration
     pub fn new(
         grpc_url: String,
         rpc_url: String,
         chain_id: String,
-        prefix: String,
+        bech32_prefix: String,
         canonical_asset: String,
         minimum_gas_price: RawCosmosAmount,
+        contract_address_bytes: usize,
     ) -> Self {
         Self {
             grpc_url,
             rpc_url,
             chain_id,
-            prefix,
+            bech32_prefix,
             canonical_asset,
             gas_price: minimum_gas_price,
+            contract_address_bytes,
         }
     }
 }

rust/config/mainnet3_config.json

@@ -431,11 +431,12 @@
       ],
       "grpcUrl": "https://grpc-kralum.neutron-1.neutron.org:80",
       "canonicalAsset": "untrn",
-      "prefix": "neutron",
+      "bech32Prefix": "neutron",
       "gasPrice": {
         "amount": "0.57",
         "denom": "untrn"
       },
+      "contractAddressBytes": 32,
       "index": {
         "from": 4000000,
         "chunk": 100000

rust/hyperlane-base/src/settings/parser/connection_parser.rs

@@ -69,11 +69,14 @@ pub fn build_cosmos_connection_conf(
 
     let prefix = chain
         .chain(err)
-        .get_key("prefix")
+        .get_key("bech32Prefix")
         .parse_string()
         .end()
         .or_else(|| {
-            local_err.push(&chain.cwp + "prefix", eyre!("Missing prefix for chain"));
+            local_err.push(
+                &chain.cwp + "bech32Prefix",
+                eyre!("Missing bech32 prefix for chain"),
+            );
             None
         });
 
@@ -100,6 +103,12 @@ pub fn build_cosmos_connection_conf(
         .and_then(parse_cosmos_gas_price)
         .end();
 
+    let contract_address_bytes = chain
+        .chain(err)
+        .get_opt_key("contractAddressBytes")
+        .parse_u64()
+        .end();
+
     if !local_err.is_ok() {
         err.merge(local_err);
         None
@@ -111,6 +120,7 @@ pub fn build_cosmos_connection_conf(
             prefix.unwrap().to_string(),
             canonical_asset.unwrap(),
             gas_price.unwrap(),
+            contract_address_bytes.unwrap().try_into().unwrap(),
         )))
     }
 }

rust/utils/run-locally/src/cosmos/deploy.rs

@@ -27,7 +27,7 @@ pub struct IGPOracleInstantiateMsg {
 #[cw_serde]
 pub struct EmptyMsg {}
 
-const PREFIX: &str = "osmo";
+const BECH32_PREFIX: &str = "osmo";
 
 #[apply(as_task)]
 pub fn deploy_cw_hyperlane(
@@ -46,7 +46,7 @@ pub fn deploy_cw_hyperlane(
         codes.hpl_mailbox,
         core::mailbox::InstantiateMsg {
             owner: deployer_addr.to_string(),
-            hrp: PREFIX.to_string(),
+            hrp: BECH32_PREFIX.to_string(),
             domain,
         },
         "hpl_mailbox",
@@ -68,7 +68,7 @@ pub fn deploy_cw_hyperlane(
         Some(deployer_addr),
         codes.hpl_igp,
         GasOracleInitMsg {
-            hrp: PREFIX.to_string(),
+            hrp: BECH32_PREFIX.to_string(),
             owner: deployer_addr.clone(),
             gas_token: "uosmo".to_string(),
             beneficiary: deployer_addr.clone(),
@@ -159,7 +159,7 @@ pub fn deploy_cw_hyperlane(
         Some(deployer_addr),
         codes.hpl_validator_announce,
         core::va::InstantiateMsg {
-            hrp: PREFIX.to_string(),
+            hrp: BECH32_PREFIX.to_string(),
             mailbox: mailbox.to_string(),
         },
         "hpl_validator_announce",
@@ -173,7 +173,7 @@ pub fn deploy_cw_hyperlane(
         Some(deployer_addr),
         codes.hpl_test_mock_msg_receiver,
         TestMockMsgReceiverInstantiateMsg {
-            hrp: PREFIX.to_string(),
+            hrp: BECH32_PREFIX.to_string(),
         },
         "hpl_test_mock_msg_receiver",
     );

rust/utils/run-locally/src/cosmos/types.rs

@@ -119,10 +119,11 @@ pub struct AgentConfig {
     pub chain_id: String,
     pub rpc_urls: Vec<AgentUrl>,
     pub grpc_url: String,
-    pub prefix: String,
+    pub bech32_prefix: String,
     pub signer: AgentConfigSigner,
     pub index: AgentConfigIndex,
     pub gas_price: RawCosmosAmount,
+    pub contract_address_bytes: usize,
 }
 
 #[derive(serde::Serialize, serde::Deserialize, Clone, Debug)]
@@ -156,7 +157,7 @@ impl AgentConfig {
                 ),
             }],
             grpc_url: format!("http://{}", network.launch_resp.endpoint.grpc_addr),
-            prefix: "osmo".to_string(),
+            bech32_prefix: "osmo".to_string(),
             signer: AgentConfigSigner {
                 typ: "cosmosKey".to_string(),
                 key: format!("0x{}", hex::encode(validator.priv_key.to_bytes())),
@@ -166,6 +167,7 @@ impl AgentConfig {
                 denom: "uosmo".to_string(),
                 amount: "0.05".to_string(),
             },
+            contract_address_bytes: 32,
             index: AgentConfigIndex {
                 from: 1,
                 chunk: 100,

solidity/test/message.test.ts

@@ -8,21 +8,26 @@ import {
 } from '@hyperlane-xyz/utils';
 
 import testCases from '../../vectors/message.json';
-import { TestMessage, TestMessage__factory } from '../types';
+import { Mailbox__factory, TestMessage, TestMessage__factory } from '../types';
 
 const remoteDomain = 1000;
 const localDomain = 2000;
-const version = 0;
 const nonce = 11;
 
 describe('Message', async () => {
   let messageLib: TestMessage;
+  let version: number;
 
   before(async () => {
     const [signer] = await ethers.getSigners();
 
     const Message = new TestMessage__factory(signer);
     messageLib = await Message.deploy();
+
+    // For consistency with the Mailbox version
+    const Mailbox = new Mailbox__factory(signer);
+    const mailbox = await Mailbox.deploy(localDomain);
+    version = await mailbox.VERSION();
   });
 
   it('Returns fields from a message', async () => {