Add support for Gnosis network (#58)

src/chain_spec.rs

@@ -1,7 +1,7 @@
 use std::path::Path;
 
 use eth2_network_config::Eth2NetworkConfig;
-use types::{ChainSpec, Config, Hash256, MainnetEthSpec, MinimalEthSpec};
+use types::{ChainSpec, Config, GnosisEthSpec, Hash256, MainnetEthSpec, MinimalEthSpec};
 
 use crate::{networks::SupportedNetworks, DepositError};
 
@@ -13,6 +13,12 @@ pub fn chain_spec_for_network(network: &SupportedNetworks) -> Result<ChainSpec,
             .unwrap()
             .chain_spec::<MainnetEthSpec>()
             .unwrap())
+    } else if network_name.as_str() == "gnosis" {
+        Ok(Eth2NetworkConfig::constant(&network_name)
+            .unwrap()
+            .unwrap()
+            .chain_spec::<GnosisEthSpec>()
+            .unwrap())
     } else {
         Err(DepositError::InvalidNetworkName(format!(
             "unknown chain name: {network_name}"

src/deposit.rs

@@ -296,6 +296,49 @@ mod test {
         );
     }
 
+    #[test]
+    fn test_deposit_gnosis() {
+        let keystore = Keystore::from_json_str(KEYSTORE).unwrap();
+        let keypair = keystore.decrypt_keypair(PASSWORD).unwrap();
+        let key_material = VotingKeyMaterial {
+            keystore: Some(keystore.clone()),
+            keypair,
+            voting_secret: PlainText::from(
+                keystore
+                    .decrypt_keypair(PASSWORD)
+                    .unwrap()
+                    .sk
+                    .serialize()
+                    .as_bytes()
+                    .to_vec(),
+            ),
+            withdrawal_keypair: None,
+        };
+        let withdrawal_creds = hex::decode(WITHDRAWAL_CREDENTIALS_ETH1).unwrap();
+        let (deposit_data, _) = keystore_to_deposit(
+            &key_material,
+            &withdrawal_creds.as_slice(),
+            32_000_000_000,
+            Some(crate::networks::SupportedNetworks::Gnosis),
+            None,
+        )
+        .unwrap();
+
+        // Signature asserted here is generated with
+        // https://github.com/gnosischain/validator-data-generator
+
+        // python ./staking_deposit/deposit.py existing-mnemonic --eth1_withdrawal_address=0x010000000000000000000000000000000000000001
+
+        // Please enter your mnemonic separated by spaces (" "): entire habit bottom mention spoil clown finger wheat motion fox axis mechanic country make garment bar blind stadium sugar water scissors canyon often ketchup
+        // Enter the index (key number) you wish to start generating more keys from. For example, if you've generated 4 keys in the past, you'd enter 4 here. [0]: 0
+        // Please choose how many new validators you wish to run: 1
+        // Please choose the (mainnet or testnet) network/chain name ['mainnet', 'ropsten', 'goerli', 'kiln', 'sepolia', 'gnosis', 'chiado']:  [gnosis]: gnosis
+        assert_eq!(
+            "97cb6902975fc7cdcd685006ca972a22799aece787b9665af9e0b501e70a4db100cf280c99f1b20ea49c953b526b0e760b4a6d6a8d1092a6afbad3efdab8269384f2034c4fd97ebd8fc2101467b2fe6aeadcf5fcfaa11952be8d3939a55b10f7",
+            deposit_data.signature.to_string().as_str().strip_prefix("0x").unwrap()
+        );
+    }
+
     #[test]
     fn test_deposit_custom_testnet() {
         let keystore = Keystore::from_json_str(KEYSTORE).unwrap();

src/networks.rs

@@ -7,6 +7,7 @@ use types::Hash256;
 pub enum SupportedNetworks {
     Mainnet,
     Holesky,
+    Gnosis,
     // These are legacy networks they are supported on best effort basis
     Prater,
     Goerli,
@@ -19,6 +20,7 @@ impl std::fmt::Display for SupportedNetworks {
             SupportedNetworks::Holesky => "holesky",
             SupportedNetworks::Prater => "goerli",
             SupportedNetworks::Goerli => "goerli",
+            SupportedNetworks::Gnosis => "gnosis",
         };
         write!(f, "{}", s)
     }
@@ -41,6 +43,9 @@ lazy_static! {
     pub static ref GENESIS_VALIDATORS_ROOT_GOERLI: Hash256 = decode_genesis_validators_root(
         "043db0d9a83813551ee2f33450d23797757d430911a9320530ad8a0eabc43efb"
     );
+    pub static ref GENESIS_VALIDATORS_ROOT_GNOSIS: Hash256 = decode_genesis_validators_root(
+        "f5dcb5564e829aab27264b9becd5dfaa017085611224cb3036f573368dbb9d47"
+    );
     pub static ref GENESIS_VALIDATOR_ROOT: HashMap<SupportedNetworks, Hash256> = HashMap::from([
         (
             SupportedNetworks::Mainnet,
@@ -58,6 +63,10 @@ lazy_static! {
             SupportedNetworks::Holesky,
             GENESIS_VALIDATORS_ROOT_HOLESKY.to_owned()
         ),
+        (
+            SupportedNetworks::Gnosis,
+            GENESIS_VALIDATORS_ROOT_GNOSIS.to_owned()
+        )
     ]);
 }
 

src/voluntary_exit/test.rs

@@ -22,3 +22,24 @@ fn it_generates_presigned_exit_message() {
     assert_eq!(73682, signed_voluntary_exit.message.epoch.as_u64());
     assert_eq!("0xa418543c8bdc266e00a45d7409386fffe02ad9ce3c1e707d562b38f7160966567602c518f6615edc8ecd964b978837f30a742c535dafc33137833b3aa6c30f4fecf37449de405ed50d8e436f21c6f58c0a48407037b1985507c3221ce53ba213", signed_voluntary_exit.signature.to_string());
 }
+
+#[test]
+fn it_generates_presigned_exit_message_gnosis() {
+    let (genesis_validators_root, spec) =
+        validators_root_and_spec(Some(SupportedNetworks::Gnosis), None);
+
+    let (voluntary_exit, key_material) =
+        crate::voluntary_exit::voluntary_exit_message_from_mnemonic(
+            PHRASE.as_bytes(),
+            0,
+            100,
+            73682,
+        );
+
+    let signed_voluntary_exit =
+        voluntary_exit.sign(&key_material.keypair.sk, genesis_validators_root, &spec);
+
+    assert_eq!(100, signed_voluntary_exit.message.validator_index);
+    assert_eq!(73682, signed_voluntary_exit.message.epoch.as_u64());
+    assert_eq!("0x8a237dd1b6127ebd9d7103e2117b8b093a049aa5a42f45c55bb17d3b689b9aa0fe5730954d9d322b6cf0eecc7205da03153cf7f155a46f582b704a511a5306267bbe6b78a71ef55a72709350770e05578253f54f7088514dcdf5f5c73db53c45", signed_voluntary_exit.signature.to_string());
+}