mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 16:57:58 +00:00
Vivek Pandya
bc53b9a03a
* Change copyright year to 2023 from 2022 * Fix incorrect update of copyright year * Remove years from copy right header * Fix remaining files * Fix typo in a header and remove update-copyright.sh
79 lines
2.2 KiB
Rust
79 lines
2.2 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//! Policy-related types.
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//!
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//! Contains a `DenyUnsafe` type that can be used to deny potentially unsafe
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//! RPC when accessed externally.
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use jsonrpsee::{
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core::Error as JsonRpseeError,
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types::{
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error::{CallError, ErrorCode},
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ErrorObject,
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},
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};
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/// Signifies whether a potentially unsafe RPC should be denied.
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#[derive(Clone, Copy, Debug)]
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pub enum DenyUnsafe {
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/// Denies only potentially unsafe RPCs.
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Yes,
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/// Allows calling every RPCs.
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No,
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}
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impl DenyUnsafe {
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/// Returns `Ok(())` if the RPCs considered unsafe are safe to call,
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/// otherwise returns `Err(UnsafeRpcError)`.
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pub fn check_if_safe(self) -> Result<(), UnsafeRpcError> {
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match self {
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DenyUnsafe::Yes => Err(UnsafeRpcError),
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DenyUnsafe::No => Ok(()),
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}
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}
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}
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/// Signifies whether an RPC considered unsafe is denied to be called externally.
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#[derive(Debug)]
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pub struct UnsafeRpcError;
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impl std::fmt::Display for UnsafeRpcError {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "RPC call is unsafe to be called externally")
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}
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}
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impl std::error::Error for UnsafeRpcError {}
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impl From<UnsafeRpcError> for CallError {
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fn from(e: UnsafeRpcError) -> CallError {
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CallError::Custom(ErrorObject::owned(
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ErrorCode::MethodNotFound.code(),
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e.to_string(),
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None::<()>,
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))
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}
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}
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impl From<UnsafeRpcError> for JsonRpseeError {
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fn from(e: UnsafeRpcError) -> JsonRpseeError {
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JsonRpseeError::Call(e.into())
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}
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}
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