Add history seeding pallet

crates/pallet-history-seeding/Cargo.toml

@@ -0,0 +1,38 @@
+[package]
+name = "pallet-history-seeding"
+version = "0.1.0"
+edition = "2021"
+description = "A pallet for seeding history of the network"
+authors = ["Dariia Porechna <[email protected]>"]
+repository = "https://github.com/autonomys/subspace"
+license = "Apache-2.0"
+readme = "README.md"
+include = [
+    "/src",
+    "/Cargo.toml",
+    "/README.md",
+]
+
+[dependencies]
+codec = { package = "parity-scale-codec", version = "3.6.12", default-features = false, features = ["derive"] }
+scale-info = { version = "2.11.2", default-features = false, features = ["derive"] }
+frame-support = { default-features = false, git = "https://github.com/subspace/polkadot-sdk", rev = "5626154d0781ac9a6ffd5a6207ed237f425ae631" }
+frame-system = { default-features = false, git = "https://github.com/subspace/polkadot-sdk", rev = "5626154d0781ac9a6ffd5a6207ed237f425ae631" }
+sp-std = { default-features = false, git = "https://github.com/subspace/polkadot-sdk", rev = "5626154d0781ac9a6ffd5a6207ed237f425ae631" }
+
+[dev-dependencies]
+pallet-sudo = { default-features = false, git = "https://github.com/subspace/polkadot-sdk", rev = "5626154d0781ac9a6ffd5a6207ed237f425ae631", features = ["std"] }
+sp-core = { default-features = false, git = "https://github.com/subspace/polkadot-sdk", rev = "5626154d0781ac9a6ffd5a6207ed237f425ae631" }
+sp-io = { default-features = false, git = "https://github.com/subspace/polkadot-sdk", rev = "5626154d0781ac9a6ffd5a6207ed237f425ae631" }
+sp-runtime = { default-features = false, git = "https://github.com/subspace/polkadot-sdk", rev = "5626154d0781ac9a6ffd5a6207ed237f425ae631" }
+
+[features]
+default = ["std"]
+std = [
+    "codec/std",
+    "scale-info/std",
+    "frame-support/std",
+    "frame-system/std",
+    "sp-std/std",
+]
+try-runtime = ["frame-support/try-runtime"]

crates/pallet-history-seeding/README.md

@@ -0,0 +1,5 @@
+# Pallet History Seeding
+
+The history seeding pallet allows an authorized account to add remarks to the blockchain, which can be used to seed historical data or important information into the chain's history. The authorized account for seeding can be set by root.
+
+License: Apache-2.0

crates/pallet-history-seeding/src/lib.rs

@@ -0,0 +1,100 @@
+#![cfg_attr(not(feature = "std"), no_std)]
+
+use frame_support::pallet_prelude::*;
+use frame_support::traits::{BuildGenesisConfig, Get};
+
+#[cfg(test)]
+mod tests;
+
+pub use pallet::*;
+
+#[frame_support::pallet]
+pub mod pallet {
+    use super::*;
+    use frame_system::pallet_prelude::*;
+    use frame_system::{RawOrigin, WeightInfo};
+    use scale_info::prelude::vec::Vec;
+
+    #[pallet::config]
+    pub trait Config: frame_system::Config {
+        type RuntimeEvent: From<Event<Self>> + IsType<<Self as frame_system::Config>::RuntimeEvent>;
+    }
+
+    #[pallet::pallet]
+    pub struct Pallet<T>(_);
+
+    #[pallet::event]
+    #[pallet::generate_deposit(pub(super) fn deposit_event)]
+    pub enum Event<T: Config> {
+        /// History was seeded. [who, remark_size]
+        HistorySeeded { who: T::AccountId, remark_size: u32 },
+    }
+
+    #[pallet::error]
+    pub enum Error<T> {
+        /// The sender is not authorized to seed history
+        NotAuthorized,
+    }
+
+    #[pallet::storage]
+    #[pallet::getter(fn history_seeder)]
+    pub type HistorySeeder<T: Config> = StorageValue<_, T::AccountId, OptionQuery>;
+
+    #[pallet::call]
+    impl<T: Config> Pallet<T> {
+        /// Seed history with a remark
+        /// TODO: add proper weight
+        #[pallet::call_index(0)]
+        #[pallet::weight((<T as frame_system::Config>::SystemWeightInfo::remark(remark.len() as u32) + T::DbWeight::get().reads(1), Pays::No))]
+        pub fn seed_history(origin: OriginFor<T>, remark: Vec<u8>) -> DispatchResult {
+            let who = ensure_signed(origin.clone())?;
+
+            // Ensure the sender is the authorized history seeder
+            ensure!(
+                Some(who.clone()) == Self::history_seeder(),
+                Error::<T>::NotAuthorized
+            );
+
+            // Add the remark to the block
+            frame_system::Pallet::<T>::remark(
+                RawOrigin::Signed(who.clone()).into(),
+                remark.clone(),
+            )
+            .map_err(|e| e.error)?;
+
+            // Emit an event
+            Self::deposit_event(Event::HistorySeeded {
+                who,
+                remark_size: remark.len() as u32,
+            });
+
+            Ok(())
+        }
+
+        #[pallet::call_index(1)]
+        #[pallet::weight(T::DbWeight::get().writes(1))]
+        pub fn set_history_seeder(
+            origin: OriginFor<T>,
+            new_seeder: T::AccountId,
+        ) -> DispatchResult {
+            ensure_root(origin)?;
+            HistorySeeder::<T>::put(new_seeder);
+            Ok(())
+        }
+    }
+
+    #[derive(frame_support::DefaultNoBound)]
+    #[pallet::genesis_config]
+    pub struct GenesisConfig<T: Config> {
+        pub history_seeder: Option<T::AccountId>,
+    }
+
+    #[pallet::genesis_build]
+    impl<T: Config> BuildGenesisConfig for GenesisConfig<T> {
+        fn build(&self) {
+            if let Some(ref seeder) = self.history_seeder {
+                HistorySeeder::<T>::put(seeder);
+            }
+        }
+    }
+}

crates/pallet-history-seeding/src/tests.rs

@@ -0,0 +1,106 @@
+use super::*;
+use crate::{self as pallet_history_seeding};
+use frame_support::{assert_noop, assert_ok, construct_runtime, derive_impl};
+use frame_system as system;
+use sp_runtime::BuildStorage;
+
+type Block = frame_system::mocking::MockBlock<Test>;
+
+construct_runtime!(
+    pub struct Test {
+        System: frame_system,
+        Sudo: pallet_sudo,
+        HistorySeeding: pallet_history_seeding,
+    }
+);
+
+#[derive_impl(frame_system::config_preludes::TestDefaultConfig)]
+impl frame_system::Config for Test {
+    type Block = Block;
+}
+
+impl pallet_sudo::Config for Test {
+    type RuntimeEvent = RuntimeEvent;
+    type RuntimeCall = RuntimeCall;
+    type WeightInfo = ();
+}
+
+impl pallet::Config for Test {
+    type RuntimeEvent = RuntimeEvent;
+}
+
+pub fn new_test_ext() -> sp_io::TestExternalities {
+    let t = system::GenesisConfig::<Test>::default()
+        .build_storage()
+        .unwrap();
+    t.into()
+}
+
+#[test]
+fn genesis_config_works() {
+    new_test_ext().execute_with(|| {
+        let genesis_config = pallet::GenesisConfig::<Test> {
+            history_seeder: Some(1),
+        };
+        genesis_config.build();
+        assert_eq!(HistorySeeding::history_seeder(), Some(1));
+    });
+}
+
+#[test]
+fn set_history_seeder_works() {
+    new_test_ext().execute_with(|| {
+        assert_ok!(HistorySeeding::set_history_seeder(RuntimeOrigin::root(), 1));
+        assert_eq!(HistorySeeding::history_seeder(), Some(1));
+
+        // Ensure only root can set the history seeder
+        assert_noop!(
+            HistorySeeding::set_history_seeder(RuntimeOrigin::signed(1), 2),
+            sp_runtime::DispatchError::BadOrigin
+        );
+    });
+}
+
+#[test]
+fn seed_history_works() {
+    new_test_ext().execute_with(|| {
+        System::set_block_number(1);
+
+        // Set the history seeder
+        assert_ok!(HistorySeeding::set_history_seeder(RuntimeOrigin::root(), 1));
+
+        // Seed history
+        let remark = vec![1, 2, 3];
+        assert_ok!(HistorySeeding::seed_history(
+            RuntimeOrigin::signed(1),
+            remark.clone()
+        ));
+
+        // Check if the event was emitted
+        System::assert_has_event(RuntimeEvent::HistorySeeding(Event::HistorySeeded {
+            who: 1,
+            remark_size: 3,
+        }));
+
+        // Ensure unauthorized account cannot seed history
+        assert_noop!(
+            HistorySeeding::seed_history(RuntimeOrigin::signed(2), remark),
+            Error::<Test>::NotAuthorized
+        );
+    });
+}
+
+#[test]
+fn seed_history_fails_when_no_seeder_set() {
+    new_test_ext().execute_with(|| {
+        let remark = vec![1, 2, 3];
+        assert_noop!(
+            HistorySeeding::seed_history(RuntimeOrigin::signed(1), remark.clone()),
+            Error::<Test>::NotAuthorized
+        );
+        assert_noop!(
+            HistorySeeding::seed_history(RuntimeOrigin::root(), remark),
+            sp_runtime::DispatchError::BadOrigin
+        );
+    });
+}

crates/subspace-malicious-operator/src/chain_spec.rs

@@ -14,8 +14,8 @@ use std::marker::PhantomData;
 use std::num::NonZeroU32;
 use subspace_runtime::{
     AllowAuthoringBy, CouncilConfig, DemocracyConfig, DomainsConfig, EnableRewardsAt,
-    MaxDomainBlockSize, MaxDomainBlockWeight, RewardsConfig, RuntimeConfigsConfig, SubspaceConfig,
-    VestingConfig,
+    HistorySeedingConfig, MaxDomainBlockSize, MaxDomainBlockWeight, RewardsConfig,
+    RuntimeConfigsConfig, SubspaceConfig, VestingConfig,
 };
 use subspace_runtime_primitives::{
     AccountId, Balance, BlockNumber, CouncilDemocracyConfigParams, SSC,
@@ -261,7 +261,7 @@ fn subspace_genesis_config(
                 raw_genesis_storage: genesis_domain_params.raw_genesis_storage,
 
                 // Domain config, mainly for placeholder the concrete value TBD
-                owner_account_id: sudo_account,
+                owner_account_id: sudo_account.clone(),
                 domain_name: genesis_domain_params.domain_name,
                 max_block_size: MaxDomainBlockSize::get(),
                 max_block_weight: MaxDomainBlockWeight::get(),
@@ -274,6 +274,9 @@ fn subspace_genesis_config(
                 initial_balances: genesis_domain_params.initial_balances,
             }],
         },
+        history_seeding: HistorySeedingConfig {
+            history_seeder: Some(sudo_account),
+        },
     }
 }
 

crates/subspace-node/src/chain_spec.rs

@@ -33,8 +33,9 @@ use std::num::NonZeroU32;
 use subspace_core_primitives::PotKey;
 use subspace_runtime::{
     AllowAuthoringBy, BalancesConfig, CouncilConfig, DemocracyConfig, DomainsConfig,
-    EnableRewardsAt, MaxDomainBlockSize, MaxDomainBlockWeight, RewardsConfig, RuntimeConfigsConfig,
-    RuntimeGenesisConfig, SubspaceConfig, SudoConfig, SystemConfig, VestingConfig, WASM_BINARY,
+    EnableRewardsAt, HistorySeedingConfig, MaxDomainBlockSize, MaxDomainBlockWeight, RewardsConfig,
+    RuntimeConfigsConfig, RuntimeGenesisConfig, SubspaceConfig, SudoConfig, SystemConfig,
+    VestingConfig, WASM_BINARY,
 };
 use subspace_runtime_primitives::time::MILLISECS_PER_BLOCK;
 use subspace_runtime_primitives::{
@@ -469,6 +470,9 @@ fn subspace_genesis_config(
                 .then_some(genesis_domain_params.permissioned_action_allowed_by),
             genesis_domains,
         },
+        history_seeding: HistorySeedingConfig {
+            history_seeder: Some(sudo_account.clone()),
+        },
     })
 }
 

crates/subspace-runtime/Cargo.toml

@@ -29,6 +29,7 @@ pallet-balances = { default-features = false, git = "https://github.com/subspace
 pallet-collective = { default-features = false, git = "https://github.com/subspace/polkadot-sdk", rev = "5626154d0781ac9a6ffd5a6207ed237f425ae631" }
 pallet-democracy = { default-features = false, git = "https://github.com/subspace/polkadot-sdk", rev = "5626154d0781ac9a6ffd5a6207ed237f425ae631" }
 pallet-domains = { version = "0.1.0", default-features = false, path = "../pallet-domains" }
+pallet-history-seeding = { version = "0.1.0", default-features = false,path = "../pallet-history-seeding" }
 pallet-messenger = { version = "0.1.0", path = "../../domains/pallets/messenger", default-features = false }
 pallet-mmr = { default-features = false, git = "https://github.com/subspace/polkadot-sdk", rev = "5626154d0781ac9a6ffd5a6207ed237f425ae631" }
 pallet-offences-subspace = { version = "0.1.0", default-features = false, path = "../pallet-offences-subspace" }
@@ -94,6 +95,7 @@ std = [
     "pallet-collective/std",
     "pallet-democracy/std",
     "pallet-domains/std",
+    "pallet-history-seeding/std",
     "pallet-messenger/std",
     "pallet-mmr/std",
     "pallet-offences-subspace/std",

crates/subspace-runtime/src/lib.rs

@@ -588,6 +588,10 @@ impl pallet_democracy::Config for Runtime {
     type WeightInfo = pallet_democracy::weights::SubstrateWeight<Runtime>;
 }
 
+impl pallet_history_seeding::Config for Runtime {
+    type RuntimeEvent = RuntimeEvent;
+}
+
 parameter_types! {
     pub const SelfChainId: ChainId = ChainId::Consensus;
 }
@@ -966,6 +970,9 @@ construct_runtime!(
         Democracy: pallet_democracy = 83,
         Preimage: pallet_preimage = 84,
 
+        // history seeding
+        HistorySeeding: pallet_history_seeding = 91,
+
         // Reserve some room for other pallets as we'll remove sudo pallet eventually.
         Sudo: pallet_sudo = 100,
     }