F/valset updates

Cargo.toml

@@ -23,7 +23,7 @@ mesh-converter    = { path = "./contracts/consumer/converter" }
 mesh-simple-price-feed    = { path = "./contracts/consumer/simple-price-feed" }
 mesh-virtual-staking    = { path = "./contracts/consumer/virtual-staking" }
 
-sylvia           = "0.6.0"
+sylvia           = "0.7.1"
 cosmwasm-schema  = "1.2"
 cosmwasm-std     = { version = "1.2", features = ["ibc3", "cosmwasm_1_2"] }
 cosmwasm-storage = "1.2"

contracts/consumer/converter/src/contract.rs

@@ -1,6 +1,6 @@
 use cosmwasm_std::{
     ensure_eq, to_binary, Addr, BankMsg, Coin, CosmosMsg, Decimal, Deps, DepsMut, Event, IbcMsg,
-    Reply, Response, SubMsg, SubMsgResponse, WasmMsg,
+    Reply, Response, SubMsg, SubMsgResponse, Validator, WasmMsg,
 };
 use cw2::set_contract_version;
 use cw_storage_plus::Item;
@@ -14,7 +14,7 @@ use mesh_apis::price_feed_api;
 use mesh_apis::virtual_staking_api;
 
 use crate::error::ContractError;
-use crate::ibc::{packet_timeout_rewards, IBC_CHANNEL};
+use crate::ibc::{add_validators_msg, packet_timeout_rewards, IBC_CHANNEL};
 use crate::msg::ConfigResponse;
 use crate::state::Config;
 
@@ -36,7 +36,7 @@ impl ConverterContract<'_> {
     pub const fn new() -> Self {
         Self {
             config: Item::new("config"),
-            virtual_stake: Item::new("bonded"),
+            virtual_stake: Item::new("virtual_stake"),
         }
     }
 
@@ -325,4 +325,38 @@ impl ConverterApi for ConverterContract<'_> {
         }
         Ok(resp)
     }
+
+    /// Valset updates.
+    ///
+    /// Sent validator set additions (entering the active validator set) to the external staking
+    /// contract on the Consumer via IBC.
+    #[msg(exec)]
+    fn valset_update(
+        &self,
+        ctx: ExecCtx,
+        additions: Vec<Validator>,
+    ) -> Result<Response, Self::Error> {
+        let virtual_stake = self.virtual_stake.load(ctx.deps.storage)?;
+        ensure_eq!(
+            ctx.info.sender,
+            virtual_stake,
+            ContractError::Unauthorized {}
+        );
+
+        // Send over IBC to the Consumer
+        let channel = IBC_CHANNEL.load(ctx.deps.storage)?;
+        let msg = add_validators_msg(&ctx.env, channel, &additions)?;
+
+        let event = Event::new("valset_update").add_attribute(
+            "additions",
+            additions
+                .iter()
+                .map(|v| v.address.clone())
+                .collect::<Vec<String>>()
+                .join(","),
+        );
+        let resp = Response::new().add_event(event).add_message(msg);
+
+        Ok(resp)
+    }
 }

contracts/consumer/converter/src/ibc.rs

@@ -5,7 +5,7 @@ use cosmwasm_std::{
     from_slice, to_binary, DepsMut, Env, Event, Ibc3ChannelOpenResponse, IbcBasicResponse,
     IbcChannel, IbcChannelCloseMsg, IbcChannelConnectMsg, IbcChannelOpenMsg,
     IbcChannelOpenResponse, IbcMsg, IbcPacketAckMsg, IbcPacketReceiveMsg, IbcPacketTimeoutMsg,
-    IbcReceiveResponse, IbcTimeout,
+    IbcReceiveResponse, IbcTimeout, Validator,
 };
 use cw_storage_plus::Item;
 
@@ -114,13 +114,24 @@ pub fn ibc_channel_connect(
 
     // Send a validator sync packet to arrive with the newly established channel
     let validators = deps.querier.query_all_validators()?;
+    let msg = add_validators_msg(&env, channel, &validators)?;
+
+    Ok(IbcBasicResponse::new().add_message(msg))
+}
+
+pub(crate) fn add_validators_msg(
+    env: &Env,
+    channel: IbcChannel,
+    validators: &[Validator],
+) -> Result<IbcMsg, ContractError> {
     let updates = validators
-        .into_iter()
+        .iter()
         .map(|v| AddValidator {
-            valoper: v.address,
-            // TODO: not yet available in CosmWasm APIs
+            valoper: v.address.clone(),
+            // TODO: not yet available in CosmWasm APIs. See https://github.com/CosmWasm/cosmwasm/issues/1828
             pub_key: "TODO".to_string(),
-            // Use current height/time as start height/time (no slashing before mesh starts)
+            // Use current height/time as start height/time (no slashing before mesh starts).
+            // Warning: These will be updated as well when updating an already existing validator.
             start_height: env.block.height,
             start_time: env.block.time.seconds(),
         })
@@ -129,10 +140,9 @@ pub fn ibc_channel_connect(
     let msg = IbcMsg::SendPacket {
         channel_id: channel.endpoint.channel_id,
         data: to_binary(&packet)?,
-        timeout: packet_timeout_validator(&env),
+        timeout: packet_timeout_validator(env),
     };
-
-    Ok(IbcBasicResponse::new().add_message(msg))
+    Ok(msg)
 }
 
 #[cfg_attr(not(feature = "library"), entry_point)]

contracts/consumer/converter/src/multitest.rs

@@ -1,10 +1,13 @@
 mod virtual_staking_mock;
 
-use cosmwasm_std::{coin, Addr, Decimal, Uint128};
+use cosmwasm_std::{coin, Addr, Decimal, StdError, Uint128, Validator};
 use cw_multi_test::App as MtApp;
 use sylvia::multitest::App;
 
 use crate::contract;
+use crate::contract::test_utils::ConverterApi;
+use crate::error::ContractError;
+use crate::error::ContractError::Unauthorized;
 
 const JUNO: &str = "ujuno";
 
@@ -195,3 +198,65 @@ fn ibc_stake_and_unstake() {
         ]
     );
 }
+
+#[test]
+fn valset_update_works() {
+    let app = App::default();
+
+    let owner = "sunny"; // Owner of the staking contract (i. e. the vault contract)
+    let admin = "theman";
+    let discount = Decimal::percent(10); // 1 OSMO worth of JUNO should give 0.9 OSMO of stake
+    let native_per_foreign = Decimal::percent(40); // 1 JUNO is worth 0.4 OSMO
+
+    let SetupResponse {
+        price_feed: _,
+        converter,
+        virtual_staking,
+    } = setup(
+        &app,
+        SetupArgs {
+            owner,
+            admin,
+            discount,
+            native_per_foreign,
+        },
+    );
+
+    // Send a valset update
+    let new_validators = vec![
+        Validator {
+            address: "validator1".to_string(),
+            commission: Default::default(),
+            max_commission: Default::default(),
+            max_change_rate: Default::default(),
+        },
+        Validator {
+            address: "validator3".to_string(),
+            commission: Default::default(),
+            max_commission: Default::default(),
+            max_change_rate: Default::default(),
+        },
+    ];
+
+    // Check that only the virtual staking contract can call this handler
+    let res = converter
+        .converter_api_proxy()
+        .valset_update(vec![])
+        .call(owner);
+    assert_eq!(res.unwrap_err(), Unauthorized {});
+
+    let res = converter
+        .converter_api_proxy()
+        .valset_update(new_validators)
+        .call(virtual_staking.contract_addr.as_ref());
+
+    // This fails because of lack of IBC support in mt now.
+    // Cannot be tested further in this setup.
+    // TODO: Change this when IBC support is there in mt.
+    assert_eq!(
+        res.unwrap_err(),
+        ContractError::Std(StdError::NotFound {
+            kind: "cosmwasm_std::ibc::IbcChannel".to_string()
+        })
+    );
+}

contracts/consumer/virtual-staking/Cargo.toml

@@ -20,7 +20,7 @@ mt = ["library", "sylvia/mt"]
 
 [dependencies]
 mesh-apis        = { workspace = true }
-mesh-bindings        = { workspace = true }
+mesh-bindings    = { workspace = true }
 
 sylvia = { workspace = true }
 cosmwasm-schema  = { workspace = true }
@@ -35,10 +35,12 @@ serde            = { workspace = true }
 thiserror        = { workspace = true }
 
 [dev-dependencies]
-cw-multi-test = { workspace = true }
-test-case     = { workspace = true }
-derivative    = { workspace = true }
-anyhow        = { workspace = true }
+mesh-simple-price-feed = { workspace = true, features = ["mt"] }
+mesh-converter         = { workspace = true, features = ["mt"] }
+cw-multi-test          = { workspace = true }
+test-case              = { workspace = true }
+derivative             = { workspace = true }
+anyhow                 = { workspace = true }
 
 [[bin]]
 name = "schema"

contracts/consumer/virtual-staking/src/contract.rs

@@ -4,7 +4,7 @@ use std::collections::BTreeMap;
 use cosmwasm_std::{
     coin, ensure_eq, entry_point, to_binary, Coin, CosmosMsg, CustomQuery, DepsMut,
     DistributionMsg, Env, Event, Reply, Response, StdResult, SubMsg, SubMsgResponse, Uint128,
-    WasmMsg,
+    Validator, WasmMsg,
 };
 use cw2::set_contract_version;
 use cw_storage_plus::{Item, Map};
@@ -44,6 +44,7 @@ pub struct VirtualStakingContract<'a> {
 #[contract]
 #[error(ContractError)]
 #[messages(virtual_staking_api as VirtualStakingApi)]
+// #[sv::override_entry_point(sudo=sudo(SudoMsg))] // Disabled because lack of custom query support
 impl VirtualStakingContract<'_> {
     pub const fn new() -> Self {
         Self {
@@ -134,6 +135,34 @@ impl VirtualStakingContract<'_> {
         Ok(resp)
     }
 
+    /**
+     * This is called every time there's a change of the active validator set.
+     *
+     */
+    fn handle_valset_update(
+        &self,
+        deps: DepsMut<VirtualStakeCustomQuery>,
+        additions: &[Validator],
+        removals: &[Validator],
+    ) -> Result<Response<VirtualStakeCustomMsg>, ContractError> {
+        // TODO: Store/process removals (and additions) locally, so that they are filtered out from
+        // the `bonded` list
+        let _ = removals;
+
+        // Send additions to the converter. Removals are considered non-permanent and ignored
+        let cfg = self.config.load(deps.storage)?;
+        let msg = converter_api::ExecMsg::ValsetUpdate {
+            additions: additions.to_vec(),
+        };
+        let msg = WasmMsg::Execute {
+            contract_addr: cfg.converter.to_string(),
+            msg: to_binary(&msg)?,
+            funds: vec![],
+        };
+        let resp = Response::new().add_message(msg);
+        Ok(resp)
+    }
+
     #[msg(reply)]
     fn reply(&self, ctx: ReplyCtx, reply: Reply) -> Result<Response, ContractError> {
         match (reply.id, reply.result.into_result()) {
@@ -325,5 +354,9 @@ pub fn sudo(
 ) -> Result<Response<VirtualStakeCustomMsg>, ContractError> {
     match msg {
         SudoMsg::Rebalance {} => VirtualStakingContract::new().handle_epoch(deps, env),
+        SudoMsg::ValsetUpdate {
+            additions,
+            removals,
+        } => VirtualStakingContract::new().handle_valset_update(deps, &additions, &removals),
     }
 }

contracts/consumer/virtual-staking/src/lib.rs

@@ -1,4 +1,6 @@
 pub mod contract;
 pub mod error;
 pub mod msg;
+#[cfg(test)]
+mod multitest;
 pub mod state;