git.delta.rocks / unique-network / refs/commits / dbc2fd55cb28

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;1920lazy_static::lazy_static! {21	pub static ref KEY_TOKEN_URI: up_data_structs::PropertyKey = {22		let key: evm_coder::types::string = "tokenURI".into(); //TODO: make static23		let key: up_data_structs::PropertyKey = key.into_bytes().try_into().expect("Can't create \"tokenURI\" key");24		key25	};26}2728// 0x17c4e6453Cc49AAAaEACA894e6D9683e00000001 - collection 129// TODO: Unhardcode prefix30const ETH_COLLECTION_PREFIX: [u8; 16] = [31	0x17, 0xc4, 0xe6, 0x45, 0x3c, 0xc4, 0x9a, 0xaa, 0xae, 0xac, 0xa8, 0x94, 0xe6, 0xd9, 0x68, 0x3e,32];3334pub fn map_eth_to_id(eth: &H160) -> Option<CollectionId> {35	if eth[0..16] != ETH_COLLECTION_PREFIX {36		return None;37	}38	let mut id_bytes = [0; 4];39	id_bytes.copy_from_slice(&eth[16..20]);40	Some(CollectionId(u32::from_be_bytes(id_bytes)))41}42pub fn collection_id_to_address(id: CollectionId) -> H160 {43	let mut out = [0; 20];44	out[0..16].copy_from_slice(&ETH_COLLECTION_PREFIX);45	out[16..20].copy_from_slice(&u32::to_be_bytes(id.0));46	H160(out)47}4849pub fn is_collection(address: &H160) -> bool {50	address[0..16] == ETH_COLLECTION_PREFIX51}