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Print a warning if a legacy JSON-RPC function is used #2907

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merged 2 commits into from
Oct 24, 2022
Merged

Print a warning if a legacy JSON-RPC function is used #2907

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def3f37
Print a warning if a legacy JSON-RPC function is used
tomaka Oct 20, 2022
79f3f62
Merge branch 'main' into legacy-json-rpc-warning
mergify[bot] Oct 24, 2022
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108 changes: 108 additions & 0 deletions bin/light-base/src/json_rpc_service.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -358,6 +358,7 @@ impl ServicePrototype {
Default::default(),
),
}),
printed_legacy_json_rpc_warning: atomic::AtomicBool::new(false),
});

// Spawns the background task that actually runs the logic of that JSON-RPC service.
Expand Down Expand Up @@ -476,6 +477,10 @@ struct Background<TPlat: Platform> {
next_subscription_id: atomic::AtomicU64,

subscriptions: Mutex<Subscriptions>,

/// If `true`, we have already printed a warning about usage of the legacy JSON-RPC API. This
/// flag prevents printing this message multiple times.
printed_legacy_json_rpc_warning: atomic::AtomicBool,
}

struct Subscriptions {
Expand Down Expand Up @@ -722,6 +727,109 @@ impl<TPlat: Platform> Background<TPlat> {
}
};

// Print a warning for legacy JSON-RPC functions.
match call {
methods::MethodCall::account_nextIndex { .. }
| methods::MethodCall::author_hasKey { .. }
| methods::MethodCall::author_hasSessionKeys { .. }
| methods::MethodCall::author_insertKey { .. }
| methods::MethodCall::author_pendingExtrinsics { .. }
| methods::MethodCall::author_removeExtrinsic { .. }
| methods::MethodCall::author_rotateKeys { .. }
| methods::MethodCall::author_submitAndWatchExtrinsic { .. }
| methods::MethodCall::author_submitExtrinsic { .. }
| methods::MethodCall::author_unwatchExtrinsic { .. }
| methods::MethodCall::babe_epochAuthorship { .. }
| methods::MethodCall::chain_getBlock { .. }
| methods::MethodCall::chain_getBlockHash { .. }
| methods::MethodCall::chain_getFinalizedHead { .. }
| methods::MethodCall::chain_getHeader { .. }
| methods::MethodCall::chain_subscribeAllHeads { .. }
| methods::MethodCall::chain_subscribeFinalizedHeads { .. }
| methods::MethodCall::chain_subscribeNewHeads { .. }
| methods::MethodCall::chain_unsubscribeAllHeads { .. }
| methods::MethodCall::chain_unsubscribeFinalizedHeads { .. }
| methods::MethodCall::chain_unsubscribeNewHeads { .. }
| methods::MethodCall::childstate_getKeys { .. }
| methods::MethodCall::childstate_getStorage { .. }
| methods::MethodCall::childstate_getStorageHash { .. }
| methods::MethodCall::childstate_getStorageSize { .. }
| methods::MethodCall::grandpa_roundState { .. }
| methods::MethodCall::offchain_localStorageGet { .. }
| methods::MethodCall::offchain_localStorageSet { .. }
| methods::MethodCall::payment_queryInfo { .. }
| methods::MethodCall::state_call { .. }
| methods::MethodCall::state_getKeys { .. }
| methods::MethodCall::state_getKeysPaged { .. }
| methods::MethodCall::state_getMetadata { .. }
| methods::MethodCall::state_getPairs { .. }
| methods::MethodCall::state_getReadProof { .. }
| methods::MethodCall::state_getRuntimeVersion { .. }
| methods::MethodCall::state_getStorage { .. }
| methods::MethodCall::state_getStorageHash { .. }
| methods::MethodCall::state_getStorageSize { .. }
| methods::MethodCall::state_queryStorage { .. }
| methods::MethodCall::state_queryStorageAt { .. }
| methods::MethodCall::state_subscribeRuntimeVersion { .. }
| methods::MethodCall::state_subscribeStorage { .. }
| methods::MethodCall::state_unsubscribeRuntimeVersion { .. }
| methods::MethodCall::state_unsubscribeStorage { .. }
| methods::MethodCall::system_accountNextIndex { .. }
| methods::MethodCall::system_addReservedPeer { .. }
| methods::MethodCall::system_chain { .. }
| methods::MethodCall::system_chainType { .. }
| methods::MethodCall::system_dryRun { .. }
| methods::MethodCall::system_health { .. }
| methods::MethodCall::system_localListenAddresses { .. }
| methods::MethodCall::system_localPeerId { .. }
| methods::MethodCall::system_name { .. }
| methods::MethodCall::system_networkState { .. }
| methods::MethodCall::system_nodeRoles { .. }
| methods::MethodCall::system_peers { .. }
| methods::MethodCall::system_properties { .. }
| methods::MethodCall::system_removeReservedPeer { .. }
| methods::MethodCall::system_version { .. } => {
if !self
.printed_legacy_json_rpc_warning
.swap(true, atomic::Ordering::Relaxed)
{
log::warn!(
target: &self.log_target,
"The JSON-RPC client has just called a JSON-RPC function from the legacy \
JSON-RPC API ({}). Legacy JSON-RPC functions have loose semantics and \
cannot be properly implemented on a light client. You are encouraged to \
use the new JSON-RPC API \
<https://github.com/paritytech/json-rpc-interface-spec/> instead. The \
legacy JSON-RPC API functions will be deprecated and removed in the \
distant future.",
call.name()
)
}
}
methods::MethodCall::chainHead_unstable_body { .. }
| methods::MethodCall::chainHead_unstable_call { .. }
| methods::MethodCall::chainHead_unstable_follow { .. }
| methods::MethodCall::chainHead_unstable_genesisHash { .. }
| methods::MethodCall::chainHead_unstable_header { .. }
| methods::MethodCall::chainHead_unstable_stopBody { .. }
| methods::MethodCall::chainHead_unstable_stopCall { .. }
| methods::MethodCall::chainHead_unstable_stopStorage { .. }
| methods::MethodCall::chainHead_unstable_storage { .. }
| methods::MethodCall::chainHead_unstable_unfollow { .. }
| methods::MethodCall::chainHead_unstable_unpin { .. }
| methods::MethodCall::chainSpec_unstable_chainName { .. }
| methods::MethodCall::chainSpec_unstable_genesisHash { .. }
| methods::MethodCall::chainSpec_unstable_properties { .. }
| methods::MethodCall::rpc_methods { .. }
| methods::MethodCall::sudo_unstable_p2pDiscover { .. }
| methods::MethodCall::sudo_unstable_version { .. }
| methods::MethodCall::transaction_unstable_submitAndWatch { .. }
| methods::MethodCall::transaction_unstable_unwatch { .. }
| methods::MethodCall::network_unstable_subscribeEvents { .. }
| methods::MethodCall::network_unstable_unsubscribeEvents { .. }
| methods::MethodCall::chainHead_unstable_finalizedDatabase { .. } => {}
}

// Each call is handled in a separate method.
match call {
methods::MethodCall::author_pendingExtrinsics {} => {
Expand Down