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4 changes: 4 additions & 0 deletions contracts/interfaces/IStaking.sol
Original file line number Diff line number Diff line change
Expand Up @@ -50,4 +50,8 @@ interface IStaking {
/// @param serviceId.
/// @return stakingState Staking state of the service.
function getStakingState(uint256 serviceId) external view returns (StakingState stakingState);

/// @dev Gets available rewards.
/// @return Available rewards amount.
function availableRewards() external view returns (uint256);
}
8 changes: 6 additions & 2 deletions contracts/l2/ExternalStakingDistributor.sol
Original file line number Diff line number Diff line change
Expand Up @@ -680,8 +680,12 @@ contract ExternalStakingDistributor is Implementation, ERC721TokenReceiver {
}
_locked = 2;

// Check for access: whitelisted managing agent or owner
if (!mapManagingAgents[msg.sender] && msg.sender != owner) {
// Get staking proxy available rewards amount
uint256 availableRewards = IStaking(stakingProxy).availableRewards();

// Check for zero rewards balance and access: whitelisted managing agent or owner
// msg.sender does not matter if rewards are no longer available
if (availableRewards > 0 && !mapManagingAgents[msg.sender] && msg.sender != owner) {
revert UnauthorizedAccount(msg.sender);
}

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