Contract Source Code (Vyper language format)

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# @version 0.2.16
"""
@title RewardClaimer
@author Curve.Fi
@license MIT
@notice Passthrough to allow claiming from multiple reward streamers
"""

from vyper.interfaces import ERC20


interface RewardStream:
    def get_reward(): nonpayable


struct RewardData:
    claim: address
    reward: address


owner: public(address)
future_owner: public(address)
reward_receiver: public(address)

reward_data: public(RewardData[4])


@external
def __init__(_owner: address, _reward_receiver: address):
    """
    @notice Contract constructor
    @param _owner Owner address
    @param _reward_receiver Reward receiver address
    """
    self.owner = _owner
    self.reward_receiver = _reward_receiver


@external
def get_reward():
    """
    @notice Claim all available rewards
    @dev Only callable by the reward receiver
    """
    assert msg.sender == self.reward_receiver

    for i in range(4):
        data: RewardData = self.reward_data[i]
        if data.reward == ZERO_ADDRESS:
            break

        RewardStream(data.claim).get_reward()
        amount: uint256 = ERC20(data.reward).balanceOf(self)
        if amount > 0:
            assert ERC20(data.reward).transfer(msg.sender, amount)


@external
def set_reward_data(_idx: uint256, _claim: address, _reward: address):
    """
    @notice Set data about a reward streamer
    @dev Only callable by the owner
    @param _idx Index of `reward_data` to modify
    @param _claim Address of the streamer to claim from
    @param _reward Address of the reward token
    """
    assert msg.sender == self.owner

    self.reward_data[_idx] = RewardData({claim: _claim, reward: _reward})


@external
def commit_transfer_ownership(_owner: address):
    """
    @notice Initiate ownership tansfer of the contract
    @param _owner Address to have ownership transferred to
    """
    assert msg.sender == self.owner  # dev: only owner

    self.future_owner = _owner


@external
def accept_transfer_ownership():
    """
    @notice Accept a pending ownership transfer
    """
    owner: address = self.future_owner
    assert msg.sender == owner  # dev: only new owner

    self.owner = owner

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[{"stateMutability":"nonpayable","type":"constructor","inputs":[{"name":"_owner","type":"address"},{"name":"_reward_receiver","type":"address"}],"outputs":[]},{"stateMutability":"nonpayable","type":"function","name":"get_reward","inputs":[],"outputs":[],"gas":59976},{"stateMutability":"nonpayable","type":"function","name":"set_reward_data","inputs":[{"name":"_idx","type":"uint256"},{"name":"_claim","type":"address"},{"name":"_reward","type":"address"}],"outputs":[],"gas":72780},{"stateMutability":"nonpayable","type":"function","name":"commit_transfer_ownership","inputs":[{"name":"_owner","type":"address"}],"outputs":[],"gas":37605},{"stateMutability":"nonpayable","type":"function","name":"accept_transfer_ownership","inputs":[],"outputs":[],"gas":37550},{"stateMutability":"view","type":"function","name":"owner","inputs":[],"outputs":[{"name":"","type":"address"}],"gas":2508},{"stateMutability":"view","type":"function","name":"future_owner","inputs":[],"outputs":[{"name":"","type":"address"}],"gas":2538},{"stateMutability":"view","type":"function","name":"reward_receiver","inputs":[],"outputs":[{"name":"","type":"address"}],"gas":2568},{"stateMutability":"view","type":"function","name":"reward_data","inputs":[{"name":"arg0","type":"uint256"}],"outputs":[{"name":"claim","type":"address"},{"name":"reward","type":"address"}],"gas":5033}]

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

0000000000000000000000007eeac6cddbd1d0b8af061742d41877d7f707289a000000000000000000000000bf7e49483881c76487b0989cd7d9a8239b20ca41

-----Decoded View---------------
Arg [0] : _owner (address): 0x7EeAC6CDdbd1D0B8aF061742D41877D7F707289a
Arg [1] : _reward_receiver (address): 0xbF7E49483881C76487b0989CD7d9A8239B20CA41

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000007eeac6cddbd1d0b8af061742d41877d7f707289a
Arg [1] : 000000000000000000000000bf7e49483881c76487b0989cd7d9a8239b20ca41