mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-27 08:07:58 +00:00
Bastian Köcher
63 lines
1.9 KiB
Rust
63 lines
1.9 KiB
Rust
// This file is part of Substrate.
|
|
|
|
// Copyright (C) 2020-2022 Parity Technologies (UK) Ltd.
|
|
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
//! Policy-related types.
|
|
//!
|
|
//! Contains a `DenyUnsafe` type that can be used to deny potentially unsafe
|
|
//! RPC when accessed externally.
|
|
|
|
use jsonrpc_core as rpc;
|
|
|
|
/// Signifies whether a potentially unsafe RPC should be denied.
|
|
#[derive(Clone, Copy, Debug)]
|
|
pub enum DenyUnsafe {
|
|
/// Denies only potentially unsafe RPCs.
|
|
Yes,
|
|
/// Allows calling every RPCs.
|
|
No,
|
|
}
|
|
|
|
impl DenyUnsafe {
|
|
/// Returns `Ok(())` if the RPCs considered unsafe are safe to call,
|
|
/// otherwise returns `Err(UnsafeRpcError)`.
|
|
pub fn check_if_safe(self) -> Result<(), UnsafeRpcError> {
|
|
match self {
|
|
DenyUnsafe::Yes => Err(UnsafeRpcError),
|
|
DenyUnsafe::No => Ok(()),
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Signifies whether an RPC considered unsafe is denied to be called externally.
|
|
#[derive(Debug)]
|
|
pub struct UnsafeRpcError;
|
|
|
|
impl std::fmt::Display for UnsafeRpcError {
|
|
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
|
write!(f, "RPC call is unsafe to be called externally")
|
|
}
|
|
}
|
|
|
|
impl std::error::Error for UnsafeRpcError {}
|
|
|
|
impl From<UnsafeRpcError> for rpc::Error {
|
|
fn from(_: UnsafeRpcError) -> rpc::Error {
|
|
rpc::Error::method_not_found()
|
|
}
|
|
}
|