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Contract Name:
PredicateProvider
Compiler Version
v0.8.30+commit.73712a01
Optimization Enabled:
Yes with 200 runs
Other Settings:
prague EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.27;
import {Ownable} from "@oz/access/Ownable.sol";
import {PredicateMessage} from "@predicate/interfaces/IPredicateClient.sol";
import {IPredicateClient} from "@predicate/interfaces/IPredicateClient.sol";
import {PredicateClient} from "@predicate/mixins/PredicateClient.sol";
import {IWhitelistProvider} from "./IWhitelistProvider.sol";
interface IPredicateProvider is IWhitelistProvider, IPredicateClient {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* Events */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
event PolicySet(string indexed policyID);
event PredicateManagerSet(address indexed predicateManager);
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* Errors */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
error PredicateProvider__AuthorizationFailed();
}
interface IPredicateAction {
function predicateAttestation(address _provider, address _user) external;
}
contract PredicateProvider is IWhitelistProvider, IPredicateProvider, Ownable, PredicateClient {
/// @notice The consumer of the provider - the soulbound contract
address public consumer;
/**
* @notice Constructor
* @param _owner The owner of the contract
* @param _predicateManager The predicate manager address
* @param _policyID The policy ID
*
* @dev Ownable
* @dev PredicateClient
*/
constructor(address _owner, address _predicateManager, string memory _policyID) Ownable(_owner) {
_initPredicateClient(_predicateManager, _policyID);
}
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* Verify Logic */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
/**
* @notice Verify the authentication data
*
* Check against the existing policy that the user has completed a sanctions check
*
* @param _user The address of the user to verify
* @param _auth The authentication data - PredicateMessage
* @return bool True if the authentication data is valid
*/
function verify(address _user, bytes memory _auth) external override(IWhitelistProvider) returns (bool) {
// The call must come from the expected consumer, such that _user field cannot be spoofed
require(msg.sender == consumer, WhitelistProvider__InvalidConsumer());
PredicateMessage memory predicateMessage = abi.decode(_auth, (PredicateMessage));
bytes memory encodedSigAndArgs =
abi.encodeWithSelector(IPredicateAction.predicateAttestation.selector, address(this), _user);
require(
_authorizeTransaction(predicateMessage, encodedSigAndArgs, _user, 0),
PredicateProvider__AuthorizationFailed()
);
return true;
}
/**
* @notice Set the consumer address
* @param _consumer The consumer address
*
* @dev onlyOwner
*/
function setConsumer(address _consumer) external override(IWhitelistProvider) onlyOwner {
consumer = _consumer;
emit ConsumerSet(_consumer);
}
/**
* @notice Set the policy ID
* @param _policyID The policy ID
*
* @dev onlyOwner
*/
function setPolicy(string memory _policyID) external override(IPredicateClient) onlyOwner {
_setPolicy(_policyID);
emit PolicySet(_policyID);
}
/**
* @notice Set the predicate manager address
* @param _predicateManager The predicate manager address
*
* @dev onlyOwner
*/
function setPredicateManager(address _predicateManager) external override(IPredicateClient) onlyOwner {
_setPredicateManager(_predicateManager);
emit PredicateManagerSet(_predicateManager);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
pragma solidity ^0.8.20;
import {Context} from "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* The initial owner is set to the address provided by the deployer. This can
* later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
/**
* @dev The caller account is not authorized to perform an operation.
*/
error OwnableUnauthorizedAccount(address account);
/**
* @dev The owner is not a valid owner account. (eg. `address(0)`)
*/
error OwnableInvalidOwner(address owner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the address provided by the deployer as the initial owner.
*/
constructor(address initialOwner) {
if (initialOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(initialOwner);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
if (owner() != _msgSender()) {
revert OwnableUnauthorizedAccount(_msgSender());
}
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
if (newOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.12;
import {IPredicateManager} from "../interfaces/IPredicateManager.sol";
/// @notice Struct that bundles together a task's parameters for validation
struct PredicateMessage {
// the unique identifier for the task
string taskId;
// the Timestamp expiry for the task
uint256 expireByTime;
// the operators that have signed the task
address[] signerAddresses;
// the signatures of the operators that have signed the task
bytes[] signatures;
}
/// @notice error type for unauthorized access
error PredicateClient__Unauthorized();
/// @notice Interface for a PredicateClient-type contract that enables clients to define execution rules or parameters for tasks they submit
interface IPredicateClient {
/**
* @notice Sets a policy for the calling address, associating it with a policy document stored on IPFS.
* @param _policyID A string representing the policyID from on chain.
* @dev This function enables clients to define execution rules or parameters for tasks they submit.
* The policy governs how tasks submitted by the caller are executed, ensuring compliance with predefined rules.
*/
function setPolicy(
string memory _policyID
) external;
/**
* @notice Retrieves the policy for the calling address.
* @return The policyID associated with the calling address.
*/
function getPolicy() external view returns (string memory);
/**
* @notice Function for setting the Predicate ServiceManager
* @param _predicateManager address of the service manager
*/
function setPredicateManager(
address _predicateManager
) external;
/**
* @notice Function for getting the Predicate ServiceManager
* @return address of the service manager
*/
function getPredicateManager() external view returns (address);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.12;
import {IPredicateManager, Task} from "../interfaces/IPredicateManager.sol";
import "../interfaces/IPredicateClient.sol";
abstract contract PredicateClient is IPredicateClient {
/// @notice Struct to contain stateful values for PredicateClient-type contracts
/// @custom:storage-location erc7201:predicate.storage.PredicateClient
struct PredicateClientStorage {
IPredicateManager serviceManager;
string policyID;
}
/// @notice the storage slot for the PredicateClientStorage struct
/// @dev keccak256(abi.encode(uint256(keccak256("predicate.storage.PredicateClient")) - 1)) & ~bytes32(uint256(0xff))
bytes32 private constant _PREDICATE_CLIENT_STORAGE_SLOT =
0x804776a84f3d03ad8442127b1451e2fbbb6a715c681d6a83c9e9fca787b99300;
function _getPredicateClientStorage() private pure returns (PredicateClientStorage storage $) {
assembly {
$.slot := _PREDICATE_CLIENT_STORAGE_SLOT
}
}
function _initPredicateClient(address _serviceManagerAddress, string memory _policyID) internal {
PredicateClientStorage storage $ = _getPredicateClientStorage();
$.serviceManager = IPredicateManager(_serviceManagerAddress);
_setPolicy(_policyID);
}
function _setPolicy(
string memory _policyID
) internal {
PredicateClientStorage storage $ = _getPredicateClientStorage();
$.policyID = _policyID;
$.serviceManager.setPolicy(_policyID);
}
function getPolicy() external view override returns (string memory) {
return _getPolicy();
}
function _getPolicy() internal view returns (string memory) {
return _getPredicateClientStorage().policyID;
}
function _setPredicateManager(
address _predicateManager
) internal {
PredicateClientStorage storage $ = _getPredicateClientStorage();
$.serviceManager = IPredicateManager(_predicateManager);
}
function getPredicateManager() external view override returns (address) {
return _getPredicateManager();
}
function _getPredicateManager() internal view returns (address) {
return address(_getPredicateClientStorage().serviceManager);
}
modifier onlyPredicateServiceManager() {
if (msg.sender != address(_getPredicateClientStorage().serviceManager)) {
revert PredicateClient__Unauthorized();
}
_;
}
/**
*
* @notice Validates the transaction by checking the signatures of the operators.
*/
function _authorizeTransaction(
PredicateMessage memory _predicateMessage,
bytes memory _encodedSigAndArgs,
address _msgSender,
uint256 _value
) internal returns (bool) {
PredicateClientStorage storage $ = _getPredicateClientStorage();
Task memory task = Task({
msgSender: _msgSender,
target: address(this),
value: _value,
encodedSigAndArgs: _encodedSigAndArgs,
policyID: $.policyID,
quorumThresholdCount: uint32(_predicateMessage.signerAddresses.length),
taskId: _predicateMessage.taskId,
expireByTime: _predicateMessage.expireByTime
});
return
$.serviceManager.validateSignatures(task, _predicateMessage.signerAddresses, _predicateMessage.signatures);
}
}// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.27;
interface IWhitelistProvider {
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* Events */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
event ConsumerSet(address indexed consumer);
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* Errors */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
error WhitelistProvider__InvalidConsumer();
/*´:°•.°+.*•´.*:˚.°*.˚•´.°:°•.°•.*•´.*:˚.°*.˚•´.°:°•.°+.*•´.*:*/
/* Functions */
/*.•°:°.´+˚.*°.˚:*.´•*.+°.•°:´*.´•*.•°.•°:°.´:•˚°.*°.˚:*.´+°.•*/
function setConsumer(address _consumer) external;
/**
* @notice Verify the authentication data
* @param _user The address of the user to verify
* @param _auth The authentication data
* @return bool True if the authentication data is valid
*/
function verify(address _user, bytes memory _auth) external returns (bool);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
pragma solidity ^0.8.20;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.12;
/// @notice Struct that bundles together a task's parameters for validation
struct Task {
// the unique identifier for the task
string taskId;
// the address of the sender of the task
address msgSender;
// the address of the target contract for the task
address target;
// the value to send with the task
uint256 value;
// the encoded signature and arguments for the task
bytes encodedSigAndArgs;
// the policy ID associated with the task
string policyID;
// the number of signatures required to authorize the task
uint32 quorumThresholdCount;
// the timestamp by which the task must be executed
uint256 expireByTime;
}
/// @notice Struct that bundles together a signature, a salt for uniqueness, and an expiration time for the signature. Used primarily for stack management.
struct SignatureWithSaltAndExpiry {
// the signature itself, formatted as a single bytes object
bytes signature;
// the salt used to generate the signature
bytes32 salt;
// the expiration timestamp (UTC) of the signature
uint256 expiry;
}
/**
* @title Minimal interface for a ServiceManager-type contract that forms the single point for an AVS to push updates to EigenLayer
* @author Predicate Labs, Inc
*/
interface IPredicateManager {
/**
* @notice Sets the metadata URI for the AVS
* @param _metadataURI is the metadata URI for the AVS
*/
function setMetadataURI(
string memory _metadataURI
) external;
/**
* @notice Forwards a call to EigenLayer's DelegationManager contract to confirm operator registration with the AVS
* @param operatorSigningKey The address of the operator's signing key.
* @param operatorSignature The signature, salt, and expiry of the operator's signature.
*/
function registerOperatorToAVS(
address operatorSigningKey,
SignatureWithSaltAndExpiry memory operatorSignature
) external;
/**
* @notice Forwards a call to EigenLayer's DelegationManager contract to confirm operator deregistration from the AVS
* @param operator The address of the operator to deregister.
*/
function deregisterOperatorFromAVS(
address operator
) external;
/**
* @notice Returns the list of strategies that the operator has potentially restaked on the AVS
* @param operator The address of the operator to get restaked strategies for
* @dev This function is intended to be called off-chain
* @dev No guarantee is made on whether the operator has shares for a strategy in a quorum or uniqueness
* of each element in the returned array. The off-chain service should do that validation separately
*/
function getOperatorRestakedStrategies(
address operator
) external view returns (address[] memory);
/**
* @notice Returns the list of strategies that the AVS supports for restaking
* @dev This function is intended to be called off-chain
* @dev No guarantee is made on uniqueness of each element in the returned array.
* The off-chain service should do that validation separately
*/
function getRestakeableStrategies() external view returns (address[] memory);
/**
* @notice Sets a policy ID for the sender, defining execution rules or parameters for tasks
* @param policyID string pointing to the policy details
* @dev Only callable by client contracts or EOAs to associate a policy with their address
* @dev Emits a SetPolicy event upon successful association
*/
function setPolicy(
string memory policyID
) external;
/**
* @notice Deploys a policy with ID with execution rules or parameters for tasks
* @param _policyID string pointing to the policy details
* @param _policy string containing the policy details
* @param _quorumThreshold The number of signatures required to authorize a task
* @dev Only callable by service manager deployer
* @dev Emits a DeployedPolicy event upon successful deployment
*/
function deployPolicy(string memory _policyID, string memory _policy, uint256 _quorumThreshold) external;
/**
* @notice Gets array of deployed policies
*/
function getDeployedPolicies() external view returns (string[] memory);
/**
* @notice Verifies if a task is authorized by the required number of operators
* @param _task Parameters of the task including sender, target, function signature, arguments, quorum count, and expiry block
* @param signerAddresses Array of addresses of the operators who signed the task
* @param signatures Array of signatures from the operators authorizing the task
* @return isVerified Boolean indicating if the task has been verified by the required number of operators
* @dev This function checks the signatures against the hash of the task parameters to ensure task authenticity and authorization
*/
function validateSignatures(
Task memory _task,
address[] memory signerAddresses,
bytes[] memory signatures
) external returns (bool isVerified);
/**
* @notice Adds a new strategy to the Service Manager
* @dev Only callable by the contract owner. Adds a strategy that operators can stake on.
* @param _strategy The address of the strategy contract to add
* @param quorumNumber The quorum number associated with the strategy
* @param index The index of the strategy within the quorum
* @dev Emits a StrategyAdded event upon successful addition of the strategy
* @dev Reverts if the strategy does not exist or is already added
*/
function addStrategy(address _strategy, uint8 quorumNumber, uint256 index) external;
/**
* @notice Removes an existing strategy from the Service Manager
* @dev Only callable by the contract owner. Removes a strategy that operators are currently able to stake on.
* @param _strategy The address of the strategy contract to remove
* @dev Emits a StrategyRemoved event upon successful removal of the strategy
* @dev Reverts if the strategy is not currently added or if the address is invalid
*/
function removeStrategy(
address _strategy
) external;
/**
* @notice Enables the rotation of Predicate Signing Key for an operator
* @param _oldSigningKey address of the old signing key to remove
* @param _newSigningKey address of the new signing key to add
*/
function rotatePredicateSigningKey(address _oldSigningKey, address _newSigningKey) external;
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"metadata": {
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}Contract Security Audit
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Contract ABI
API[{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_predicateManager","type":"address"},{"internalType":"string","name":"_policyID","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"inputs":[],"name":"PredicateProvider__AuthorizationFailed","type":"error"},{"inputs":[],"name":"WhitelistProvider__InvalidConsumer","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"consumer","type":"address"}],"name":"ConsumerSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"string","name":"policyID","type":"string"}],"name":"PolicySet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"predicateManager","type":"address"}],"name":"PredicateManagerSet","type":"event"},{"inputs":[],"name":"consumer","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPolicy","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getPredicateManager","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_consumer","type":"address"}],"name":"setConsumer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_policyID","type":"string"}],"name":"setPolicy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_predicateManager","type":"address"}],"name":"setPredicateManager","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_user","type":"address"},{"internalType":"bytes","name":"_auth","type":"bytes"}],"name":"verify","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000085e51a78fe8fe21d881894206a9adbf54e3df8c3000000000000000000000000f6f4a30eef7cf51ed4ee1415fb3bfdaf3694b0d20000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000f782d617a7465632d616d6c2d3030310000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : _owner (address): 0x85e51a78FE8FE21d881894206A9adbf54e3Df8c3
Arg [1] : _predicateManager (address): 0xf6f4A30EeF7cf51Ed4Ee1415fB3bFDAf3694B0d2
Arg [2] : _policyID (string): x-aztec-aml-001
-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 00000000000000000000000085e51a78fe8fe21d881894206a9adbf54e3df8c3
Arg [1] : 000000000000000000000000f6f4a30eef7cf51ed4ee1415fb3bfdaf3694b0d2
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [3] : 000000000000000000000000000000000000000000000000000000000000000f
Arg [4] : 782d617a7465632d616d6c2d3030310000000000000000000000000000000000
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Net Worth in USD
$0.00
Net Worth in ETH
0
Multichain Portfolio | 34 Chains
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.