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Allow to expose a subset of unsafe RPCs (#5233)

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* sc-cli: Use type-safe constructors for RPC/Prometheus interfaces

* service: Simplify rpc handler creation

Could probably be further simplifies once [this][commit] lands.

[commit]: https://github.com/paritytech/jsonrpc/commit/20485387ed06a48f1a70bf4d609a7cde6cf0accf

* service: Streamline some HTTP & WS server start logic

* client: Introduce a simple RPC policy mechanism

* rpc/system: Check unsafe RPCs

* rpc/offchain: Check unsafe RPCs

* rpc/author: Check unsafe RPCs
This commit is contained in:
Igor Matuszewski
2020-04-20 11:03:58 +02:00
committed by GitHub
parent d05dc090a8
commit 4b1f7d187f
20 changed files with 281 additions and 95 deletions
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substrate/client/rpc/src/offchain/mod.rs
+8 -1
View File
@@ -21,6 +21,7 @@ mod tests;
/// Re-export the API for backward compatibility.
pub use sc_rpc_api::offchain::*;
use sc_rpc_api::DenyUnsafe;
use self::error::{Error, Result};
use sp_core::{
Bytes,
@@ -34,13 +35,15 @@ use std::sync::Arc;
pub struct Offchain<T: OffchainStorage> {
/// Offchain storage
storage: Arc<RwLock<T>>,
deny_unsafe: DenyUnsafe,
}
impl<T: OffchainStorage> Offchain<T> {
/// Create new instance of Offchain API.
pub fn new(storage: T) -> Self {
pub fn new(storage: T, deny_unsafe: DenyUnsafe) -> Self {
Offchain {
storage: Arc::new(RwLock::new(storage)),
deny_unsafe,
}
}
}
@@ -48,6 +51,8 @@ impl<T: OffchainStorage> Offchain<T> {
impl<T: OffchainStorage + 'static> OffchainApi for Offchain<T> {
/// Set offchain local storage under given key and prefix.
fn set_local_storage(&self, kind: StorageKind, key: Bytes, value: Bytes) -> Result<()> {
self.deny_unsafe.check_if_safe()?;
let prefix = match kind {
StorageKind::PERSISTENT => sp_offchain::STORAGE_PREFIX,
StorageKind::LOCAL => return Err(Error::UnavailableStorageKind),
@@ -58,6 +63,8 @@ impl<T: OffchainStorage + 'static> OffchainApi for Offchain<T> {
/// Get offchain local storage under given key and prefix.
fn get_local_storage(&self, kind: StorageKind, key: Bytes) -> Result<Option<Bytes>> {
self.deny_unsafe.check_if_safe()?;
let prefix = match kind {
StorageKind::PERSISTENT => sp_offchain::STORAGE_PREFIX,
StorageKind::LOCAL => return Err(Error::UnavailableStorageKind),