|
| 1 | +import { NetworkContracts } from './addresses'; |
| 2 | +import { type ThorClient } from '../../thor-client'; |
| 3 | +import { |
| 4 | + addressUtils, |
| 5 | + ZERO_ADDRESS, |
| 6 | + type FunctionFragment |
| 7 | +} from '../../../../core'; |
| 8 | + |
| 9 | +/** |
| 10 | + * Returns a single address or null for a name resolved at vet.domains |
| 11 | + * |
| 12 | + * @param thorClient - The thor client instance to use. |
| 13 | + * @param name - The name to resolve |
| 14 | + * @returns The address or null |
| 15 | + */ |
| 16 | +const resolveName = async ( |
| 17 | + thorClient: ThorClient, |
| 18 | + name: string |
| 19 | +): Promise<null | string> => { |
| 20 | + const [address] = await vnsUtils.resolveNames(thorClient, [name]); |
| 21 | + return address ?? null; |
| 22 | +}; |
| 23 | + |
| 24 | +/** |
| 25 | + * Returns a list of addresses or null for names resolved by vet.domains |
| 26 | + * |
| 27 | + * @param thorClient - The thor client instance to use. |
| 28 | + * @param names - The names to resolve |
| 29 | + * @returns The list of the same size of names with the resolved address or null |
| 30 | + */ |
| 31 | +const resolveNames = async ( |
| 32 | + thorClient: ThorClient, |
| 33 | + names: string[] |
| 34 | +): Promise<Array<null | string>> => { |
| 35 | + // identify current chain |
| 36 | + const genesisBlock = await thorClient.blocks.getGenesisBlock(); |
| 37 | + |
| 38 | + // verify configuration for chain exists |
| 39 | + if ( |
| 40 | + genesisBlock === null || |
| 41 | + !addressUtils.isAddress(NetworkContracts[genesisBlock.id]?.resolveUtils) |
| 42 | + ) { |
| 43 | + return names.map(() => null); |
| 44 | + } |
| 45 | + |
| 46 | + const resolveUtilsAddress = NetworkContracts[genesisBlock.id].resolveUtils; |
| 47 | + |
| 48 | + // use the resolveUtils to lookup names |
| 49 | + const [addresses] = (await thorClient.contracts.executeCall( |
| 50 | + resolveUtilsAddress, |
| 51 | + 'function getAddresses(string[] names) returns (address[] addresses)' as unknown as FunctionFragment, |
| 52 | + [names] |
| 53 | + )) as string[][]; |
| 54 | + |
| 55 | + return addresses.map((address) => { |
| 56 | + // zero addresses are missing configuration entries |
| 57 | + if (address === ZERO_ADDRESS || !addressUtils.isAddress(address)) { |
| 58 | + return null; |
| 59 | + } |
| 60 | + |
| 61 | + return address; |
| 62 | + }); |
| 63 | +}; |
| 64 | + |
| 65 | +/** |
| 66 | + * Returns a single primary name for a given address resolved at vet.domains |
| 67 | + * |
| 68 | + * @param thorClient - The thor client instance to use. |
| 69 | + * @param address - The address to lookup |
| 70 | + * @returns The name or null |
| 71 | + */ |
| 72 | +const lookupAddress = async ( |
| 73 | + thorClient: ThorClient, |
| 74 | + address: string |
| 75 | +): Promise<null | string> => { |
| 76 | + const [name] = await vnsUtils.lookupAddresses(thorClient, [address]); |
| 77 | + return name ?? null; |
| 78 | +}; |
| 79 | + |
| 80 | +/** |
| 81 | + * Returns a list of names or null for addresses primary names resolved by vet.domains. Reverse lookup of name to address is verified. |
| 82 | + * |
| 83 | + * @param thorClient - The thor client instance to use. |
| 84 | + * @param addresses - The addresses to lookup |
| 85 | + * @returns The list of the same size of addresses with the resolved primary names or null |
| 86 | + */ |
| 87 | +const lookupAddresses = async ( |
| 88 | + thorClient: ThorClient, |
| 89 | + addresses: string[] |
| 90 | +): Promise<Array<null | string>> => { |
| 91 | + // identify current chain |
| 92 | + const genesisBlock = await thorClient.blocks.getGenesisBlock(); |
| 93 | + |
| 94 | + // verify configuration for chain exists |
| 95 | + if ( |
| 96 | + genesisBlock === null || |
| 97 | + !addressUtils.isAddress(NetworkContracts[genesisBlock.id]?.resolveUtils) |
| 98 | + ) { |
| 99 | + return addresses.map(() => null); |
| 100 | + } |
| 101 | + |
| 102 | + const resolveUtilsAddress = NetworkContracts[genesisBlock.id].resolveUtils; |
| 103 | + |
| 104 | + // use the resolveUtils to lookup names |
| 105 | + const [names] = (await thorClient.contracts.executeCall( |
| 106 | + resolveUtilsAddress, |
| 107 | + 'function getNames(address[] addresses) returns (string[] names)' as unknown as FunctionFragment, |
| 108 | + [addresses] |
| 109 | + )) as string[][]; |
| 110 | + |
| 111 | + return names.map((name) => { |
| 112 | + // empty strings indicate a missing entry |
| 113 | + if (name === '') { |
| 114 | + return null; |
| 115 | + } |
| 116 | + |
| 117 | + return name; |
| 118 | + }); |
| 119 | +}; |
| 120 | + |
| 121 | +const vnsUtils = { resolveName, resolveNames, lookupAddress, lookupAddresses }; |
| 122 | +export { vnsUtils }; |
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