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im-online removal final cleanup (#3902)
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Rejoice! Rejoice! The story is nearly over.

This PR removes stale migrations, auxiliary structures, and package
dependencies, thus making Rococo and Westend totally free from any
`im-online`-related stuff.

`im-online` still stays a part of the Substrate node and its runtime:
https://github.com/paritytech/polkadot-sdk/blob/0d9324847391e902bb42f84f0e76096b1f764efe/substrate/bin/node/runtime/src/lib.rs#L2276-L2277
I'm not sure if it makes sense to remove it from there considering that
we're not removing `im-online` from FRAME. Please share your opinion.
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@s0me0ne-unkn0wn
s0me0ne-unkn0wn authored Apr 1, 2024
1 parent bf1ca86 commit 52e1037
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4 changes: 0 additions & 4 deletions Cargo.lock
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2 changes: 0 additions & 2 deletions cumulus/test/service/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -88,7 +88,6 @@ pallet-timestamp = { path = "../../../substrate/frame/timestamp" }
futures = "0.3.28"
portpicker = "0.1.1"
rococo-parachain-runtime = { path = "../../parachains/runtimes/testing/rococo-parachain" }
pallet-im-online = { path = "../../../substrate/frame/im-online" }
sp-consensus-grandpa = { path = "../../../substrate/primitives/consensus/grandpa" }
sp-authority-discovery = { path = "../../../substrate/primitives/authority-discovery" }
cumulus-test-client = { path = "../client" }
Expand All @@ -106,7 +105,6 @@ runtime-benchmarks = [
"cumulus-primitives-core/runtime-benchmarks",
"cumulus-test-client/runtime-benchmarks",
"frame-system/runtime-benchmarks",
"pallet-im-online/runtime-benchmarks",
"pallet-timestamp/runtime-benchmarks",
"parachains-common/runtime-benchmarks",
"polkadot-cli/runtime-benchmarks",
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3 changes: 0 additions & 3 deletions polkadot/node/service/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -65,7 +65,6 @@ sp-version = { path = "../../../substrate/primitives/version" }

# Substrate Pallets
pallet-babe = { path = "../../../substrate/frame/babe" }
pallet-im-online = { path = "../../../substrate/frame/im-online" }
pallet-staking = { path = "../../../substrate/frame/staking" }
pallet-transaction-payment-rpc-runtime-api = { path = "../../../substrate/frame/transaction-payment/rpc/runtime-api" }
frame-system = { path = "../../../substrate/frame/system" }
Expand Down Expand Up @@ -197,7 +196,6 @@ runtime-benchmarks = [
"frame-support/runtime-benchmarks",
"frame-system/runtime-benchmarks",
"pallet-babe/runtime-benchmarks",
"pallet-im-online/runtime-benchmarks",
"pallet-staking/runtime-benchmarks",
"polkadot-parachain-primitives/runtime-benchmarks",
"polkadot-primitives/runtime-benchmarks",
Expand All @@ -213,7 +211,6 @@ try-runtime = [
"frame-support/try-runtime",
"frame-system/try-runtime",
"pallet-babe/try-runtime",
"pallet-im-online/try-runtime",
"pallet-staking/try-runtime",
"pallet-transaction-payment/try-runtime",
"polkadot-runtime-parachains/try-runtime",
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4 changes: 0 additions & 4 deletions polkadot/runtime/rococo/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -60,7 +60,6 @@ pallet-asset-rate = { path = "../../../substrate/frame/asset-rate", default-feat
frame-executive = { path = "../../../substrate/frame/executive", default-features = false }
pallet-grandpa = { path = "../../../substrate/frame/grandpa", default-features = false }
pallet-identity = { path = "../../../substrate/frame/identity", default-features = false }
pallet-im-online = { path = "../../../substrate/frame/im-online", default-features = false }
pallet-indices = { path = "../../../substrate/frame/indices", default-features = false }
pallet-membership = { path = "../../../substrate/frame/membership", default-features = false }
pallet-message-queue = { path = "../../../substrate/frame/message-queue", default-features = false }
Expand Down Expand Up @@ -153,7 +152,6 @@ std = [
"pallet-elections-phragmen/std",
"pallet-grandpa/std",
"pallet-identity/std",
"pallet-im-online/std",
"pallet-indices/std",
"pallet-membership/std",
"pallet-message-queue/std",
Expand Down Expand Up @@ -228,7 +226,6 @@ runtime-benchmarks = [
"pallet-elections-phragmen/runtime-benchmarks",
"pallet-grandpa/runtime-benchmarks",
"pallet-identity/runtime-benchmarks",
"pallet-im-online/runtime-benchmarks",
"pallet-indices/runtime-benchmarks",
"pallet-membership/runtime-benchmarks",
"pallet-message-queue/runtime-benchmarks",
Expand Down Expand Up @@ -284,7 +281,6 @@ try-runtime = [
"pallet-elections-phragmen/try-runtime",
"pallet-grandpa/try-runtime",
"pallet-identity/try-runtime",
"pallet-im-online/try-runtime",
"pallet-indices/try-runtime",
"pallet-membership/try-runtime",
"pallet-message-queue/try-runtime",
Expand Down
137 changes: 1 addition & 136 deletions polkadot/runtime/rococo/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -88,8 +88,7 @@ use sp_runtime::{
IdentityLookup, Keccak256, OpaqueKeys, SaturatedConversion, Verify,
},
transaction_validity::{TransactionPriority, TransactionSource, TransactionValidity},
ApplyExtrinsicResult, BoundToRuntimeAppPublic, FixedU128, KeyTypeId, Perbill, Percent, Permill,
RuntimeAppPublic, RuntimeDebug,
ApplyExtrinsicResult, FixedU128, KeyTypeId, Perbill, Percent, Permill, RuntimeDebug,
};
use sp_staking::SessionIndex;
#[cfg(any(feature = "std", test))]
Expand Down Expand Up @@ -347,46 +346,6 @@ impl pallet_authorship::Config for Runtime {
type EventHandler = ();
}

#[derive(Clone, Debug, PartialEq, Eq, Encode, Decode)]
pub struct OldSessionKeys {
pub grandpa: <Grandpa as BoundToRuntimeAppPublic>::Public,
pub babe: <Babe as BoundToRuntimeAppPublic>::Public,
pub im_online: pallet_im_online::sr25519::AuthorityId,
pub para_validator: <Initializer as BoundToRuntimeAppPublic>::Public,
pub para_assignment: <ParaSessionInfo as BoundToRuntimeAppPublic>::Public,
pub authority_discovery: <AuthorityDiscovery as BoundToRuntimeAppPublic>::Public,
pub beefy: <Beefy as BoundToRuntimeAppPublic>::Public,
}

impl OpaqueKeys for OldSessionKeys {
type KeyTypeIdProviders = ();
fn key_ids() -> &'static [KeyTypeId] {
&[
<<Grandpa as BoundToRuntimeAppPublic>::Public>::ID,
<<Babe as BoundToRuntimeAppPublic>::Public>::ID,
sp_core::crypto::key_types::IM_ONLINE,
<<Initializer as BoundToRuntimeAppPublic>::Public>::ID,
<<ParaSessionInfo as BoundToRuntimeAppPublic>::Public>::ID,
<<AuthorityDiscovery as BoundToRuntimeAppPublic>::Public>::ID,
<<Beefy as BoundToRuntimeAppPublic>::Public>::ID,
]
}
fn get_raw(&self, i: KeyTypeId) -> &[u8] {
match i {
<<Grandpa as BoundToRuntimeAppPublic>::Public>::ID => self.grandpa.as_ref(),
<<Babe as BoundToRuntimeAppPublic>::Public>::ID => self.babe.as_ref(),
sp_core::crypto::key_types::IM_ONLINE => self.im_online.as_ref(),
<<Initializer as BoundToRuntimeAppPublic>::Public>::ID => self.para_validator.as_ref(),
<<ParaSessionInfo as BoundToRuntimeAppPublic>::Public>::ID =>
self.para_assignment.as_ref(),
<<AuthorityDiscovery as BoundToRuntimeAppPublic>::Public>::ID =>
self.authority_discovery.as_ref(),
<<Beefy as BoundToRuntimeAppPublic>::Public>::ID => self.beefy.as_ref(),
_ => &[],
}
}
}

impl_opaque_keys! {
pub struct SessionKeys {
pub grandpa: Grandpa,
Expand All @@ -398,18 +357,6 @@ impl_opaque_keys! {
}
}

// remove this when removing `OldSessionKeys`
fn transform_session_keys(_val: AccountId, old: OldSessionKeys) -> SessionKeys {
SessionKeys {
grandpa: old.grandpa,
babe: old.babe,
para_validator: old.para_validator,
para_assignment: old.para_assignment,
authority_discovery: old.authority_discovery,
beefy: old.beefy,
}
}

/// Special `ValidatorIdOf` implementation that is just returning the input as result.
pub struct ValidatorIdOf;
impl sp_runtime::traits::Convert<AccountId, Option<AccountId>> for ValidatorIdOf {
Expand Down Expand Up @@ -1486,8 +1433,6 @@ pub mod migrations {

use frame_support::traits::LockIdentifier;
use frame_system::pallet_prelude::BlockNumberFor;
#[cfg(feature = "try-runtime")]
use sp_core::crypto::ByteArray;

pub struct GetLegacyLeaseImpl;
impl coretime::migration::GetLegacyLease<BlockNumber> for GetLegacyLeaseImpl {
Expand All @@ -1514,7 +1459,6 @@ pub mod migrations {
pub const PhragmenElectionPalletName: &'static str = "PhragmenElection";
pub const TechnicalMembershipPalletName: &'static str = "TechnicalMembership";
pub const TipsPalletName: &'static str = "Tips";
pub const ImOnlinePalletName: &'static str = "ImOnline";
pub const PhragmenElectionPalletId: LockIdentifier = *b"phrelect";
}

Expand Down Expand Up @@ -1551,79 +1495,6 @@ pub mod migrations {
type PalletName = TipsPalletName;
}

/// Upgrade Session keys to exclude `ImOnline` key.
/// When this is removed, should also remove `OldSessionKeys`.
pub struct UpgradeSessionKeys;
const UPGRADE_SESSION_KEYS_FROM_SPEC: u32 = 104000;

impl frame_support::traits::OnRuntimeUpgrade for UpgradeSessionKeys {
#[cfg(feature = "try-runtime")]
fn pre_upgrade() -> Result<sp_std::vec::Vec<u8>, sp_runtime::TryRuntimeError> {
if System::last_runtime_upgrade_spec_version() > UPGRADE_SESSION_KEYS_FROM_SPEC {
log::warn!(target: "runtime::session_keys", "Skipping session keys migration pre-upgrade check due to spec version (already applied?)");
return Ok(Vec::new());
}

log::info!(target: "runtime::session_keys", "Collecting pre-upgrade session keys state");
let key_ids = SessionKeys::key_ids();
frame_support::ensure!(
key_ids.into_iter().find(|&k| *k == sp_core::crypto::key_types::IM_ONLINE) == None,
"New session keys contain the ImOnline key that should have been removed",
);
let storage_key = pallet_session::QueuedKeys::<Runtime>::hashed_key();
let mut state: Vec<u8> = Vec::new();
frame_support::storage::unhashed::get::<Vec<(ValidatorId, OldSessionKeys)>>(
&storage_key,
)
.ok_or::<sp_runtime::TryRuntimeError>("Queued keys are not available".into())?
.into_iter()
.for_each(|(id, keys)| {
state.extend_from_slice(id.as_slice());
for key_id in key_ids {
state.extend_from_slice(keys.get_raw(*key_id));
}
});
frame_support::ensure!(state.len() > 0, "Queued keys are not empty before upgrade");
Ok(state)
}

fn on_runtime_upgrade() -> Weight {
if System::last_runtime_upgrade_spec_version() > UPGRADE_SESSION_KEYS_FROM_SPEC {
log::info!("Skipping session keys upgrade: already applied");
return <Runtime as frame_system::Config>::DbWeight::get().reads(1);
}
log::trace!("Upgrading session keys");
Session::upgrade_keys::<OldSessionKeys, _>(transform_session_keys);
Perbill::from_percent(50) * BlockWeights::get().max_block
}

#[cfg(feature = "try-runtime")]
fn post_upgrade(
old_state: sp_std::vec::Vec<u8>,
) -> Result<(), sp_runtime::TryRuntimeError> {
if System::last_runtime_upgrade_spec_version() > UPGRADE_SESSION_KEYS_FROM_SPEC {
log::warn!(target: "runtime::session_keys", "Skipping session keys migration post-upgrade check due to spec version (already applied?)");
return Ok(());
}

let key_ids = SessionKeys::key_ids();
let mut new_state: Vec<u8> = Vec::new();
pallet_session::QueuedKeys::<Runtime>::get().into_iter().for_each(|(id, keys)| {
new_state.extend_from_slice(id.as_slice());
for key_id in key_ids {
new_state.extend_from_slice(keys.get_raw(*key_id));
}
});
frame_support::ensure!(new_state.len() > 0, "Queued keys are not empty after upgrade");
frame_support::ensure!(
old_state == new_state,
"Pre-upgrade and post-upgrade keys do not match!"
);
log::info!(target: "runtime::session_keys", "Session keys migrated successfully");
Ok(())
}
}

// We don't have a limit in the Relay Chain.
const IDENTITY_MIGRATION_KEY_LIMIT: u64 = u64::MAX;

Expand Down Expand Up @@ -1657,12 +1528,6 @@ pub mod migrations {
pallet_grandpa::migrations::MigrateV4ToV5<Runtime>,
parachains_configuration::migration::v10::MigrateToV10<Runtime>,

// Upgrade `SessionKeys` to exclude `ImOnline`
UpgradeSessionKeys,

// Remove `im-online` pallet on-chain storage
frame_support::migrations::RemovePallet<ImOnlinePalletName, <Runtime as frame_system::Config>::DbWeight>,

// Migrate Identity pallet for Usernames
pallet_identity::migration::versioned::V0ToV1<Runtime, IDENTITY_MIGRATION_KEY_LIMIT>,
parachains_configuration::migration::v11::MigrateToV11<Runtime>,
Expand Down
4 changes: 0 additions & 4 deletions polkadot/runtime/westend/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -64,7 +64,6 @@ pallet-election-provider-multi-phase = { path = "../../../substrate/frame/electi
pallet-fast-unstake = { path = "../../../substrate/frame/fast-unstake", default-features = false }
pallet-grandpa = { path = "../../../substrate/frame/grandpa", default-features = false }
pallet-identity = { path = "../../../substrate/frame/identity", default-features = false }
pallet-im-online = { path = "../../../substrate/frame/im-online", default-features = false }
pallet-indices = { path = "../../../substrate/frame/indices", default-features = false }
pallet-membership = { path = "../../../substrate/frame/membership", default-features = false }
pallet-message-queue = { path = "../../../substrate/frame/message-queue", default-features = false }
Expand Down Expand Up @@ -167,7 +166,6 @@ std = [
"pallet-fast-unstake/std",
"pallet-grandpa/std",
"pallet-identity/std",
"pallet-im-online/std",
"pallet-indices/std",
"pallet-membership/std",
"pallet-message-queue/std",
Expand Down Expand Up @@ -251,7 +249,6 @@ runtime-benchmarks = [
"pallet-fast-unstake/runtime-benchmarks",
"pallet-grandpa/runtime-benchmarks",
"pallet-identity/runtime-benchmarks",
"pallet-im-online/runtime-benchmarks",
"pallet-indices/runtime-benchmarks",
"pallet-membership/runtime-benchmarks",
"pallet-message-queue/runtime-benchmarks",
Expand Down Expand Up @@ -310,7 +307,6 @@ try-runtime = [
"pallet-fast-unstake/try-runtime",
"pallet-grandpa/try-runtime",
"pallet-identity/try-runtime",
"pallet-im-online/try-runtime",
"pallet-indices/try-runtime",
"pallet-membership/try-runtime",
"pallet-message-queue/try-runtime",
Expand Down
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