pezkuwichain
b6d35f6faf
Updated 4763 files with dual copyright: - Parity Technologies (UK) Ltd. - Dijital Kurdistan Tech Institute
72 lines
2.7 KiB
Rust
72 lines
2.7 KiB
Rust
// Copyright (C) Parity Technologies (UK) Ltd. and Dijital Kurdistan Tech Institute
|
|
// This file is part of Pezkuwi.
|
|
|
|
// Pezkuwi 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.
|
|
|
|
// Pezkuwi 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 Pezkuwi. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
//! Implementation for `ContainsPair<Location, Location>`.
|
|
|
|
use core::marker::PhantomData;
|
|
use pezframe_support::traits::{Contains, ContainsPair, Get};
|
|
use xcm::latest::prelude::*;
|
|
|
|
/// Alias a Foreign `AccountId32` with a local `AccountId32` if the foreign `AccountId32` matches
|
|
/// the `Prefix` pattern.
|
|
///
|
|
/// Requires that the prefixed origin `AccountId32` matches the target `AccountId32`.
|
|
pub struct AliasForeignAccountId32<Prefix>(PhantomData<Prefix>);
|
|
impl<Prefix: Contains<Location>> ContainsPair<Location, Location>
|
|
for AliasForeignAccountId32<Prefix>
|
|
{
|
|
fn contains(origin: &Location, target: &Location) -> bool {
|
|
if let (prefix, Some(account_id @ AccountId32 { .. })) =
|
|
origin.clone().split_last_interior()
|
|
{
|
|
return Prefix::contains(&prefix)
|
|
&& *target == Location { parents: 0, interior: [account_id].into() };
|
|
}
|
|
false
|
|
}
|
|
}
|
|
|
|
/// Alias a descendant location of the original origin.
|
|
pub struct AliasChildLocation;
|
|
impl ContainsPair<Location, Location> for AliasChildLocation {
|
|
fn contains(origin: &Location, target: &Location) -> bool {
|
|
return target.starts_with(origin);
|
|
}
|
|
}
|
|
|
|
/// Alias a location if it passes `Filter` and the original origin is root of `Origin`.
|
|
///
|
|
/// This can be used to allow (trusted) system chains root to alias into other locations.
|
|
/// **Warning**: do not use with untrusted `Origin` chains.
|
|
pub struct AliasOriginRootUsingFilter<Origin, Filter>(PhantomData<(Origin, Filter)>);
|
|
impl<Origin, Filter> ContainsPair<Location, Location> for AliasOriginRootUsingFilter<Origin, Filter>
|
|
where
|
|
Origin: Get<Location>,
|
|
Filter: Contains<Location>,
|
|
{
|
|
fn contains(origin: &Location, target: &Location) -> bool {
|
|
// check that `origin` is a root location
|
|
match origin.unpack() {
|
|
(1, [Teyrchain(_)])
|
|
| (2, [GlobalConsensus(_)])
|
|
| (2, [GlobalConsensus(_), Teyrchain(_)]) => (),
|
|
_ => return false,
|
|
};
|
|
// check that `origin` matches `Origin` and `target` matches `Filter`
|
|
return Origin::get().eq(origin) && Filter::contains(target);
|
|
}
|
|
}
|