1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617use up_data_structs::CollectionId;18use sp_core::H160;1920// 0x17c4e6453Cc49AAAaEACA894e6D9683e00000001 - collection 121// TODO: Unhardcode prefix22const ETH_COLLECTION_PREFIX: [u8; 16] = [23 0x17, 0xc4, 0xe6, 0x45, 0x3c, 0xc4, 0x9a, 0xaa, 0xae, 0xac, 0xa8, 0x94, 0xe6, 0xd9, 0x68, 0x3e,24];2526pub fn map_eth_to_id(eth: &H160) -> Option<CollectionId> {27 if eth[0..16] != ETH_COLLECTION_PREFIX {28 return None;29 }30 let mut id_bytes = [0; 4];31 id_bytes.copy_from_slice(ð[16..20]);32 Some(CollectionId(u32::from_be_bytes(id_bytes)))33}34pub fn collection_id_to_address(id: CollectionId) -> H160 {35 let mut out = [0; 20];36 out[0..16].copy_from_slice(Ð_COLLECTION_PREFIX);37 out[16..20].copy_from_slice(&u32::to_be_bytes(id.0));38 H160(out)39}4041pub fn is_collection(address: &H160) -> bool {42 address[0..16] == ETH_COLLECTION_PREFIX43}difftreelog
source
pallets/common/src/eth.rs1.5 KiBsourcehistory