@metamask/delegation-toolkit/dist/chunk-YBVGMN76.cjs.map

The Delegation Toolkit built on top of Viem - a library for interacting with DeleGator Smart Accounts

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eslint-disable */\n// experimental actions will be moved here once they have stabilized\n\nexport {\n  // Individual action functions\n  getErc20PeriodTransferEnforcerAvailableAmount,\n  getErc20StreamingEnforcerAvailableAmount,\n  getMultiTokenPeriodEnforcerAvailableAmount,\n  getNativeTokenPeriodTransferEnforcerAvailableAmount,\n  getNativeTokenStreamingEnforcerAvailableAmount,\n  // Action builder\n  caveatEnforcerActions,\n  // Parameter types\n  type CaveatEnforcerParams,\n  // Result types\n  type PeriodTransferResult,\n  type StreamingResult,\n} from './getCaveatAvailableAmount';\n\nexport { isValid7702Implementation } from './isValid7702Implementation';\n\n// Signing actions\nexport {\n  signDelegation,\n  signDelegationActions,\n  type SignDelegationParameters,\n  type SignDelegationReturnType,\n} from './signDelegation';\n\nexport {\n  signUserOperation,\n  signUserOperationActions,\n  type SignUserOperationParameters,\n  type SignUserOperationReturnType,\n} from './signUserOperation';\n","import type { Address, Hex, Client } from 'viem';\n\nimport { getDelegationHashOffchain } from '../delegation';\nimport * as ERC20PeriodTransferEnforcer from '../DelegationFramework/ERC20PeriodTransferEnforcer';\nimport * as ERC20StreamingEnforcer from '../DelegationFramework/ERC20StreamingEnforcer';\nimport * as MultiTokenPeriodEnforcer from '../DelegationFramework/MultiTokenPeriodEnforcer';\nimport * as NativeTokenPeriodTransferEnforcer from '../DelegationFramework/NativeTokenPeriodTransferEnforcer';\nimport * as NativeTokenStreamingEnforcer from '../DelegationFramework/NativeTokenStreamingEnforcer';\nimport type { DeleGatorEnvironment, Delegation } from '../types';\n\n/**\n * Parameters for all caveat enforcer actions.\n */\nexport type CaveatEnforcerParams = {\n  delegation: Delegation;\n};\n\n/**\n * Return type for period-based transfer enforcers\n */\nexport type PeriodTransferResult = {\n  availableAmount: bigint;\n  isNewPeriod: boolean;\n  currentPeriod: bigint;\n};\n\n/**\n * Return type for streaming enforcers\n */\nexport type StreamingResult = {\n  availableAmount: bigint;\n};\n\n/**\n * Finds a caveat that matches the specified enforcer address.\n * @param config - The configuration object.\n * @param config.delegation - The delegation to search.\n * @param config.enforcerAddress - The enforcer address to match.\n * @param config.enforcerName - The name of the enforcer.\n * @returns The matching caveat.\n * @throws Error if no matching caveat is found.\n * @throws Error if multiple matching caveats are found.\n */\nfunction findMatchingCaveat({\n  delegation,\n  enforcerAddress,\n  enforcerName,\n}: {\n  delegation: Delegation;\n  enforcerAddress: Address;\n  enforcerName: keyof DeleGatorEnvironment['caveatEnforcers'];\n}): { terms: Hex; args: Hex } {\n  const matchingCaveats = delegation.caveats.filter(\n    (caveat) => caveat.enforcer.toLowerCase() === enforcerAddress.toLowerCase(),\n  );\n\n  if (matchingCaveats.length === 0) {\n    throw new Error(`No caveat found with enforcer matching ${enforcerName}`);\n  }\n\n  if (matchingCaveats.length > 1) {\n    throw new Error(\n      `Multiple caveats found with enforcer matching ${enforcerName}`,\n    );\n  }\n\n  const [{ terms, args }] = matchingCaveats as unknown as [\n    { terms: Hex; args: Hex },\n  ];\n\n  return {\n    terms,\n    args,\n  };\n}\n\n/**\n * Gets the delegation manager address from environment.\n *\n * @param environment - The delegator environment.\n * @returns The delegation manager address.\n */\nfunction getDelegationManager(environment: DeleGatorEnvironment): Address {\n  if (!environment.DelegationManager) {\n    throw new Error('Delegation manager address not found');\n  }\n\n  return environment.DelegationManager;\n}\n\n/**\n * Gets the enforcer address from environment.\n *\n * @param config - The configuration object.\n * @param config.enforcerName - The name of the enforcer.\n * @param config.environment - The delegator environment.\n * @returns The enforcer address.\n */\nfunction getEnforcerAddress({\n  enforcerName,\n  environment,\n}: {\n  enforcerName: keyof DeleGatorEnvironment['caveatEnforcers'];\n  environment: DeleGatorEnvironment;\n}): Address {\n  const enforcerAddress = environment.caveatEnforcers[enforcerName];\n  if (!enforcerAddress) {\n    throw new Error(`${enforcerName} not found in environment`);\n  }\n\n  return enforcerAddress;\n}\n\n/**\n * Get available amount for ERC20 period transfer enforcer.\n *\n * @param client - The viem client.\n * @param environment - The delegator environment.\n * @param params - The parameters for the ERC20 period transfer enforcer.\n * @returns Promise resolving to the period transfer result.\n */\nexport async function getErc20PeriodTransferEnforcerAvailableAmount(\n  client: Client,\n  environment: DeleGatorEnvironment,\n  params: CaveatEnforcerParams,\n): Promise<PeriodTransferResult> {\n  const enforcerName = 'ERC20PeriodTransferEnforcer';\n\n  const delegationManager = getDelegationManager(environment);\n  const enforcerAddress = getEnforcerAddress({\n    enforcerName,\n    environment,\n  });\n\n  const delegationHash = getDelegationHashOffchain(params.delegation);\n  const { terms } = findMatchingCaveat({\n    delegation: params.delegation,\n    enforcerAddress,\n    enforcerName,\n  });\n\n  return ERC20PeriodTransferEnforcer.read.getAvailableAmount({\n    client,\n    contractAddress: enforcerAddress,\n    delegationHash,\n    delegationManager,\n    terms,\n  });\n}\n\n/**\n * Get available amount for ERC20 streaming enforcer.\n *\n * @param client - The viem client.\n * @param environment - The delegator environment.\n * @param params - The parameters for the ERC20 streaming enforcer.\n * @returns Promise resolving to the streaming result.\n */\nexport async function getErc20StreamingEnforcerAvailableAmount(\n  client: Client,\n  environment: DeleGatorEnvironment,\n  params: CaveatEnforcerParams,\n): Promise<StreamingResult> {\n  const enforcerName = 'ERC20StreamingEnforcer';\n  const delegationManager = getDelegationManager(environment);\n  const enforcerAddress = getEnforcerAddress({\n    enforcerName,\n    environment,\n  });\n\n  const delegationHash = getDelegationHashOffchain(params.delegation);\n  const { terms } = findMatchingCaveat({\n    delegation: params.delegation,\n    enforcerAddress,\n    enforcerName,\n  });\n\n  return ERC20StreamingEnforcer.read.getAvailableAmount({\n    client,\n    contractAddress: enforcerAddress,\n    delegationManager,\n    delegationHash,\n    terms,\n  });\n}\n\n/**\n * Get available amount for multi-token period enforcer.\n *\n * @param client - The viem client.\n * @param environment - The delegator environment.\n * @param params - The parameters for the multi-token period enforcer.\n * @returns Promise resolving to the period transfer result.\n */\nexport async function getMultiTokenPeriodEnforcerAvailableAmount(\n  client: Client,\n  environment: DeleGatorEnvironment,\n  params: CaveatEnforcerParams,\n): Promise<PeriodTransferResult> {\n  const enforcerName = 'MultiTokenPeriodEnforcer';\n  const delegationManager = getDelegationManager(environment);\n  const enforcerAddress = getEnforcerAddress({\n    enforcerName,\n    environment,\n  });\n\n  const delegationHash = getDelegationHashOffchain(params.delegation);\n  const { terms, args } = findMatchingCaveat({\n    delegation: params.delegation,\n    enforcerAddress,\n    enforcerName,\n  });\n\n  return MultiTokenPeriodEnforcer.read.getAvailableAmount({\n    client,\n    contractAddress: enforcerAddress,\n    delegationHash,\n    delegationManager,\n    terms,\n    args,\n  });\n}\n\n/**\n * Get available amount for native token period transfer enforcer.\n *\n * @param client - The viem client.\n * @param environment - The delegator environment.\n * @param params - The parameters for the native token period transfer enforcer.\n * @returns Promise resolving to the period transfer result.\n */\nexport async function getNativeTokenPeriodTransferEnforcerAvailableAmount(\n  client: Client,\n  environment: DeleGatorEnvironment,\n  params: CaveatEnforcerParams,\n): Promise<PeriodTransferResult> {\n  const enforcerName = 'NativeTokenPeriodTransferEnforcer';\n  const delegationManager = getDelegationManager(environment);\n  const enforcerAddress = getEnforcerAddress({\n    enforcerName,\n    environment,\n  });\n\n  const delegationHash = getDelegationHashOffchain(params.delegation);\n  const { terms } = findMatchingCaveat({\n    delegation: params.delegation,\n    enforcerAddress,\n    enforcerName,\n  });\n\n  return NativeTokenPeriodTransferEnforcer.read.getAvailableAmount({\n    client,\n    contractAddress: enforcerAddress,\n    delegationHash,\n    delegationManager,\n    terms,\n  });\n}\n\n/**\n * Get available amount for native token streaming enforcer.\n *\n * @param client - The viem client.\n * @param environment - The delegator environment.\n * @param params - The parameters for the native token streaming enforcer.\n * @returns Promise resolving to the streaming result.\n */\nexport async function getNativeTokenStreamingEnforcerAvailableAmount(\n  client: Client,\n  environment: DeleGatorEnvironment,\n  params: CaveatEnforcerParams,\n): Promise<StreamingResult> {\n  const enforcerName = 'NativeTokenStreamingEnforcer';\n  const delegationManager = getDelegationManager(environment);\n  const enforcerAddress = getEnforcerAddress({\n    enforcerName,\n    environment,\n  });\n\n  const delegationHash = getDelegationHashOffchain(params.delegation);\n  const { terms } = findMatchingCaveat({\n    delegation: params.delegation,\n    enforcerAddress,\n    enforcerName,\n  });\n\n  return NativeTokenStreamingEnforcer.read.getAvailableAmount({\n    client,\n    contractAddress: enforcerAddress,\n    delegationManager,\n    delegationHash,\n    terms,\n  });\n}\n\n/**\n * Caveat enforcer actions for extending viem clients.\n *\n * @param params - The parameters object.\n * @param params.environment - The delegator environment.\n * @returns A function that takes a client and returns the client extension with caveat enforcer actions.\n */\nexport const caveatEnforcerActions =\n  ({ environment }: { environment: DeleGatorEnvironment }) =>\n  (client: Client) => ({\n    /**\n     * Get available amount for ERC20 period transfer enforcer.\n     *\n     * @param params - The parameters for the ERC20 period transfer enforcer.\n     * @returns Promise resolving to the period transfer result.\n     */\n    getErc20PeriodTransferEnforcerAvailableAmount: async (\n      params: CaveatEnforcerParams,\n    ): Promise<PeriodTransferResult> => {\n      return getErc20PeriodTransferEnforcerAvailableAmount(\n        client,\n        environment,\n        params,\n      );\n    },\n\n    /**\n     * Get available amount for ERC20 streaming enforcer.\n     *\n     * @param params - The parameters for the ERC20 streaming enforcer.\n     * @returns Promise resolving to the streaming result.\n     */\n    getErc20StreamingEnforcerAvailableAmount: async (\n      params: CaveatEnforcerParams,\n    ): Promise<StreamingResult> => {\n      return getErc20StreamingEnforcerAvailableAmount(\n        client,\n        environment,\n        params,\n      );\n    },\n\n    /**\n     * Get available amount for multi-token period enforcer.\n     *\n     * @param params - The parameters for the multi-token period enforcer.\n     * @returns Promise resolving to the period transfer result.\n     */\n    getMultiTokenPeriodEnforcerAvailableAmount: async (\n      params: CaveatEnforcerParams,\n    ): Promise<PeriodTransferResult> => {\n      return getMultiTokenPeriodEnforcerAvailableAmount(\n        client,\n        environment,\n        params,\n      );\n    },\n\n    /**\n     * Get available amount for native token period transfer enforcer.\n     *\n     * @param params - The parameters for the native token period transfer enforcer.\n     * @returns Promise resolving to the period transfer result.\n     */\n    getNativeTokenPeriodTransferEnforcerAvailableAmount: async (\n      params: CaveatEnforcerParams,\n    ): Promise<PeriodTransferResult> => {\n      return getNativeTokenPeriodTransferEnforcerAvailableAmount(\n        client,\n        environment,\n        params,\n      );\n    },\n\n    /**\n     * Get available amount for native token streaming enforcer.\n     *\n     * @param params - The parameters for the native token streaming enforcer.\n     * @returns Promise resolving to the streaming result.\n     */\n    getNativeTokenStreamingEnforcerAvailableAmount: async (\n      params: CaveatEnforcerParams,\n    ): Promise<StreamingResult> => {\n      return getNativeTokenStreamingEnforcerAvailableAmount(\n        client,\n        environment,\n        params,\n      );\n    },\n  });\n","import type { Client, Address, Hex } from 'viem';\nimport { isAddressEqual } from 'viem';\nimport { getCode } from 'viem/actions';\n\nimport type { DeleGatorEnvironment } from '../types';\n\n// EIP-7702 delegation prefix (0xef0100)\nconst DELEGATION_PREFIX = '0xef0100' as const;\n\n/**\n * Parameters for checking if an account is delegated to the EIP-7702 implementation.\n */\nexport type IsValid7702ImplementationParameters = {\n  /** The client to use for the query. */\n  client: Client;\n  /** The address to check for proper delegation. */\n  accountAddress: Address;\n  /** The DeleGator environment containing contract addresses. */\n  environment: DeleGatorEnvironment;\n};\n\n/**\n * Extracts the delegated contract address from EIP-7702 delegation code.\n *\n * @param code - The code returned from getCode for a delegated account.\n * @returns The delegated contract address or null if not a valid delegation.\n */\nfunction extractDelegatedAddress(code: Hex | undefined): Address | null {\n  if (code?.length !== 48) {\n    // 0x (2 chars) + ef0100 (6 chars) + address (40 chars) = 48 chars\n    return null;\n  }\n\n  if (!code.toLowerCase().startsWith(DELEGATION_PREFIX.toLowerCase())) {\n    return null;\n  }\n\n  // Extract the 20-byte address after the delegation prefix\n  const addressHex = code.slice(8); // Remove '0xef0100' prefix (8 chars)\n  return `0x${addressHex}`;\n}\n\n/**\n * Checks if an account is properly delegated to the EIP-7702 implementation.\n *\n * This function validates EIP-7702 delegations by checking if the EOA has a 7702\n * contract assigned to it and comparing the delegated address against the 7702\n * implementation found in the environment.\n *\n * @param params - The parameters for checking the delegation.\n * @param params.client - The client to use for the query.\n * @param params.accountAddress - The address to check for proper delegation.\n * @param params.environment - The DeleGator environment containing contract addresses.\n * @returns A promise that resolves to true if the account is properly delegated to the 7702 implementation, false otherwise.\n * @example\n * ```typescript\n * const isValid = await isValid7702Implementation({\n *   client: publicClient,\n *   accountAddress: '0x...',\n *   environment: delegatorEnvironment,\n * });\n *\n * if (isValid) {\n *   console.log('Account is properly delegated to EIP-7702 implementation');\n * } else {\n *   console.log('Account is not properly delegated');\n * }\n * ```\n */\nexport async function isValid7702Implementation({\n  client,\n  accountAddress,\n  environment,\n}: IsValid7702ImplementationParameters): Promise<boolean> {\n  try {\n    // Get the code at the account address\n    const code = await getCode(client, {\n      address: accountAddress,\n    });\n\n    // Extract the delegated contract address from the EIP-7702 delegation code\n    const delegatedAddress = extractDelegatedAddress(code);\n\n    // If no valid delegation found, return false\n    if (!delegatedAddress) {\n      return false;\n    }\n\n    // Compare the delegated address with the 7702 implementation in the environment\n    const expectedImplementation =\n      environment.implementations.EIP7702StatelessDeleGatorImpl;\n    if (!expectedImplementation) {\n      return false;\n    }\n\n    return isAddressEqual(delegatedAddress, expectedImplementation);\n  } catch (error) {\n    // If the call fails (e.g., no code at address, network error),\n    // then it's not properly delegated to our implementation\n    return false;\n  }\n}\n","import type {\n  Account,\n  Address,\n  Chain,\n  Client,\n  Hex,\n  Transport,\n  WalletClient,\n} from 'viem';\nimport { BaseError } from 'viem';\nimport { parseAccount } from 'viem/accounts';\n\nimport { prepareSignDelegationTypedData } from '../delegation';\nimport type { Delegation } from '../types';\n\nexport type SignDelegationParameters = {\n  /** Account to sign with */\n  account?: Account | Address;\n  /** The delegation to sign */\n  delegation: Omit<Delegation, 'signature'>;\n  /** The address of the delegation manager contract */\n  delegationManager: Address;\n  /** The chain ID for the signature */\n  chainId: number;\n  /** The name of the contract */\n  name?: string;\n  /** The version of the contract */\n  version?: string;\n  /** Whether to allow insecure unrestricted delegation */\n  allowInsecureUnrestrictedDelegation?: boolean;\n};\n\nexport type SignDelegationReturnType = Hex;\n\n/**\n * Signs a delegation using a wallet client.\n * @param client - The wallet client to use for signing.\n * @param parameters - The parameters for signing the delegation.\n * @returns The signature of the delegation.\n * @example\n * ```ts\n * const signature = await signDelegation(walletClient, {\n *   delegation: {\n *     delegate: '0x...',\n *     delegator: '0x...',\n *     authority: '0x...',\n *     caveats: [],\n *     salt: '0x'\n *   },\n *   delegationManager: '0x...',\n *   chainId: 1\n * });\n * ```\n */\nexport async function signDelegation<\n  TChain extends Chain | undefined,\n  TAccount extends Account | undefined,\n>(\n  client: Client<Transport, TChain, TAccount> & {\n    signTypedData: WalletClient['signTypedData'];\n  },\n  parameters: SignDelegationParameters,\n): Promise<SignDelegationReturnType> {\n  const {\n    account: accountParam = client.account,\n    delegation,\n    delegationManager,\n    chainId,\n    name = 'DelegationManager',\n    version = '1',\n    allowInsecureUnrestrictedDelegation = false,\n  } = parameters;\n\n  if (!accountParam) {\n    throw new BaseError('Account not found. Please provide an account.');\n  }\n\n  const account = parseAccount(accountParam);\n\n  const typedData = prepareSignDelegationTypedData({\n    delegation,\n    delegationManager,\n    chainId,\n    name,\n    version,\n    allowInsecureUnrestrictedDelegation,\n  });\n\n  return client.signTypedData({\n    account,\n    ...typedData,\n  });\n}\n\n/**\n * Creates a sign delegation action that can be used to extend a wallet client.\n * @returns A function that can be used with wallet client extend method.\n * @example\n * ```ts\n * const walletClient = createWalletClient({\n *   chain: mainnet,\n *   transport: http()\n * }).extend(signDelegationActions());\n * ```\n */\nexport function signDelegationActions() {\n  return <\n    TChain extends Chain | undefined,\n    TAccount extends Account | undefined,\n  >(\n    client: Client<Transport, TChain, TAccount> & {\n      signTypedData: WalletClient['signTypedData'];\n    },\n  ) => ({\n    signDelegation: async (\n      parameters: Omit<SignDelegationParameters, 'chainId'> & {\n        chainId?: number;\n      },\n    ) =>\n      signDelegation(client, {\n        chainId:\n          parameters.chainId ??\n          (() => {\n            if (!client.chain?.id) {\n              throw new BaseError(\n                'Chain ID is required. Either provide it in parameters or configure the client with a chain.',\n              );\n            }\n            return client.chain.id;\n          })(),\n        ...parameters,\n      }),\n  });\n}\n","import type {\n  Account,\n  Address,\n  Chain,\n  Client,\n  Hex,\n  Transport,\n  WalletClient,\n} from 'viem';\nimport { BaseError } from 'viem';\nimport { parseAccount } from 'viem/accounts';\n\nimport { prepareSignUserOperationTypedData } from '../userOp';\nimport type { UserOperationV07 } from '../userOp';\n\nexport type SignUserOperationParameters = {\n  /** Account to sign with */\n  account?: Account | Address;\n  /** The user operation to sign */\n  userOperation: Omit<UserOperationV07, 'signature'>;\n  /** The entry point contract address */\n  entryPoint: { address: Address };\n  /** The chain ID that the entry point is deployed on */\n  chainId: number;\n  /** The address of the smart account */\n  address: Address;\n  /** The name of the domain of the implementation contract */\n  name: 'HybridDeleGator' | 'MultiSigDeleGator';\n  /** The version of the domain of the implementation contract */\n  version?: string;\n};\n\nexport type SignUserOperationReturnType = Hex;\n\n/**\n * Signs a user operation using a wallet client.\n * @param client - The wallet client to use for signing.\n * @param parameters - The parameters for signing the user operation.\n * @returns The signature of the user operation.\n * @example\n * ```ts\n * const signature = await signUserOperation(walletClient, {\n *   userOperation: {\n *     sender: '0x...',\n *     nonce: 0n,\n *     callData: '0x',\n *     callGasLimit: 1000000n,\n *     verificationGasLimit: 1000000n,\n *     preVerificationGas: 21000n,\n *     maxFeePerGas: 1000000000n,\n *     maxPriorityFeePerGas: 1000000000n\n *   },\n *   entryPoint: { address: '0x...' },\n *   chainId: 1,\n *   address: '0x...',\n *   name: 'HybridDeleGator'\n * });\n * ```\n */\nexport async function signUserOperation<\n  TChain extends Chain | undefined,\n  TAccount extends Account | undefined,\n>(\n  client: Client<Transport, TChain, TAccount> & {\n    signTypedData: WalletClient['signTypedData'];\n  },\n  parameters: SignUserOperationParameters,\n): Promise<SignUserOperationReturnType> {\n  const {\n    account: accountParam = client.account,\n    userOperation,\n    entryPoint,\n    chainId,\n    name,\n    address,\n    version = '1',\n  } = parameters;\n\n  if (!accountParam) {\n    throw new BaseError('Account not found. Please provide an account.');\n  }\n\n  const account = parseAccount(accountParam);\n\n  const typedData = prepareSignUserOperationTypedData({\n    userOperation,\n    entryPoint,\n    chainId,\n    name,\n    address,\n    version,\n  });\n\n  return client.signTypedData({\n    account,\n    ...typedData,\n  });\n}\n\n/**\n * Creates a sign user operation action that can be used to extend a wallet client.\n * @returns A function that can be used with wallet client extend method.\n * @example\n * ```ts\n * const walletClient = createWalletClient({\n *   chain: mainnet,\n *   transport: http()\n * }).extend(signUserOperationActions());\n * ```\n */\nexport function signUserOperationActions() {\n  return <\n    TChain extends Chain | undefined,\n    TAccount extends Account | undefined,\n  >(\n    client: Client<Transport, TChain, TAccount> & {\n      signTypedData: WalletClient['signTypedData'];\n    },\n  ) => ({\n    signUserOperation: async (\n      parameters: Omit<SignUserOperationParameters, 'chainId'> & {\n        chainId?: number;\n      },\n    ) =>\n      signUserOperation(client, {\n        chainId:\n          parameters.chainId ??\n          (() => {\n            if (!client.chain?.id) {\n              throw new BaseError(\n                'Chain ID is required. Either provide it in parameters or configure the client with a chain.',\n              );\n            }\n            return client.chain.id;\n          })(),\n        ...parameters,\n      }),\n  });\n}\n"]}