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Merge pull request #30 from iden3/feature/custom-registration
Custom registration
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,157 @@ | ||
| import { | ||
| Blockchain, | ||
| ChainIds, | ||
| DidMethod, | ||
| DidMethodByte, | ||
| DidMethodNetwork, | ||
| NetworkId | ||
| } from './constants'; | ||
| import { DID } from './did'; | ||
|
|
||
| export const registerBlockchain = (blockchain: string): void => { | ||
| Blockchain[blockchain] = blockchain; | ||
| }; | ||
|
|
||
| export const registerNetwork = (network: string): void => { | ||
| NetworkId[network] = network; | ||
| }; | ||
|
|
||
| export const registerDidMethod = (method: string, byte: number): void => { | ||
| const existingByte = DidMethodByte[method]; | ||
| if (typeof DidMethodByte[method] === 'number' && existingByte !== byte) { | ||
| throw new Error( | ||
| `DID method '${method}' already registered with byte '${existingByte.toString(2)}'` | ||
| ); | ||
| } | ||
| const max = DidMethodByte[DidMethod.Other]; | ||
|
|
||
| if (byte >= max) { | ||
| throw new Error( | ||
| `Can't register DID method byte: current '${byte.toString(2)}', maximum byte allowed: '${( | ||
| max - 1 | ||
| ).toString(2)}'` | ||
| ); | ||
| } | ||
|
|
||
| DidMethod[method] = method; | ||
| DidMethodByte[method] = byte; | ||
| }; | ||
|
|
||
| /** | ||
| * Register chain ID for a blockchain and network. | ||
| * | ||
| * @param {string} blockchain | ||
| * @param {string} network | ||
| * @param {number} [chainId] | ||
| * @returns {void} | ||
| */ | ||
| export const registerChainId = (blockchain: string, network: string, chainId: number): void => { | ||
| const key = `${blockchain}:${network}`; | ||
|
|
||
| if (typeof ChainIds[key] === 'number' && ChainIds[key] !== chainId) { | ||
| throw new Error( | ||
| `chainId '${blockchain}:${network}' already registered with value '${ChainIds[key]}'` | ||
| ); | ||
| } | ||
|
|
||
| ChainIds[key] = chainId; | ||
| }; | ||
|
|
||
| /** | ||
| * Get chain ID by a blockchain and network. | ||
| * | ||
| * @param {string} blockchain | ||
| * @param {string} [network] | ||
| * @returns {number} | ||
| */ | ||
| export const getChainId = (blockchain: string, network?: string): number => { | ||
| if (network) { | ||
| blockchain += `:${network}`; | ||
| } | ||
| const chainId = ChainIds[blockchain]; | ||
| if (!chainId) { | ||
| throw new Error(`chainId not found for ${blockchain}`); | ||
| } | ||
| return chainId; | ||
| }; | ||
|
|
||
| /** | ||
| * ChainIDfromDID returns chain name from w3c.DID | ||
| * | ||
| * @param {DID} did | ||
| * @returns {number} | ||
| */ | ||
| export const chainIDfromDID = (did: DID): number => { | ||
| const id = DID.idFromDID(did); | ||
|
|
||
| const blockchain = DID.blockchainFromId(id); | ||
|
|
||
| const networkId = DID.networkIdFromId(id); | ||
|
|
||
| const chainId = ChainIds[`${blockchain}:${networkId}`]; | ||
| if (typeof chainId !== 'number') { | ||
| throw new Error(`chainId not found for ${blockchain}:${networkId}`); | ||
| } | ||
|
|
||
| return chainId; | ||
| }; | ||
|
|
||
| /** | ||
| * Register a DID method with a byte value. | ||
| * https://docs.iden3.io/getting-started/identity/identity-types/#regular-identity | ||
| * @param {{ | ||
| * method: DidMethodName; DID method name | ||
| * methodByte?: number; put DID method byte value in case you want to register new DID method | ||
| * blockchain: BlockchainName; blockchain name | ||
| * network: NetworkName; network name | ||
| * networkFlag: number; network flag | ||
| * chainId?: number; put chain ID in case you need to use it | ||
| * }} { | ||
| * method, | ||
| * methodByte, | ||
| * blockchain, | ||
| * network, | ||
| * chainId, | ||
| * networkFlag | ||
| * } | ||
| */ | ||
| export const registerDidMethodNetwork = ({ | ||
| method, | ||
| methodByte, | ||
| blockchain, | ||
| network, | ||
| chainId, | ||
| networkFlag | ||
| }: { | ||
| method: string; | ||
| methodByte?: number; | ||
| blockchain: string; | ||
| network: string; | ||
| networkFlag: number; | ||
| chainId?: number; | ||
| }): void => { | ||
| registerBlockchain(blockchain); | ||
| registerNetwork(network); | ||
| if (typeof methodByte === 'number') { | ||
| registerDidMethod(method, methodByte); | ||
| } | ||
|
|
||
| if (!DidMethodNetwork[method]) { | ||
| DidMethodNetwork[method] = {}; | ||
| } | ||
|
|
||
| if (typeof chainId === 'number') { | ||
| registerChainId(blockchain, network, chainId); | ||
| } | ||
|
|
||
| const key = `${blockchain}:${network}`; | ||
| const existedFlag = DidMethodNetwork[method][key]; | ||
| if (typeof existedFlag === 'number' && existedFlag !== networkFlag) { | ||
| throw new Error( | ||
| `DID method network '${method}' with blockchain '${blockchain}' and network '${network}' already registered with another flag '${existedFlag.toString( | ||
| 2 | ||
| )}'` | ||
| ); | ||
| } | ||
| DidMethodNetwork[method][key] = networkFlag; | ||
| }; |
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