// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.26;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
/**
* @dev Returns the value of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the value of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves a `value` amount of tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 value) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(
address owner,
address spender
) external view returns (uint256);
/**
* @dev Sets a `value` amount of tokens as the allowance of `spender` over the
* caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 value) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from `from` to `to` using the
* allowance mechanism. `value` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 value
) external returns (bool);
}
/*
#@%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%@#
#@..:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::..@#
#@.-@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@=.@#
#@.-@@@@@@@%%%%%%@@@@%@@@@@@%@@@@@@%%%%@@@@%%%%%%%%%%%@@@%%%%%%%%%@@@@@=.@#
#@.-@@@@@@*------%@@*-@@@@@*=@@@@@+----#@@+-----------#@=---------#@@@@=.@#
#@.-@@@@@*******#@@@*-@@@@*##@@@@*#*****%@%#***+-****#%@=--=******%@@@@=.@#
#@.-@@@@@#*++++%@@@@*-+++*#@@@@@#-=++++=+%@@@@@#-%@@@@@@=--=++++#@@@@@@=.@#
#@.-@@@@@@@@@@@*=%@@*-%@@%=#@@@@#=#@@@@++@@@@@@#-%@@@@@@=--+@@@@@@@@@@@=.@#
#@.-@@@@%======#@@@@*-@@@@%*+@@@#=%@@@@*+%@@@@@#-%@@@@@@=---======#@@@@=.@#
#@.-@@@@#------#@@@@*=@@@@@*=@@@#=%@@@@*+%@@@@@#-%@@@@@@=---------#@@@@=.@#
#@.-@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@=.@#
#@.-@@@@@@@@@@@%%%%%%%%%%%%######*************+++++++++===========#@@@@=.@#
#@.-@@@@@@@@@%%#*%%%#++*%%%##**+=..:++++*%@%%%%%%%%%%%%%%%%%%%%%%%@@@@@=.@#
#@.-@@@@@@@%%#+#%%#++*%%##%#+..........=***#************++++++++++%@@@@=.@#
#@.-@@@@@@@%*+*#%*+*#%##**%=...........-+*#%%%%%%%%%##############@@@@@=.@#
#@.-@@@@@@%#+*%#*=+#%#*#%#*-............-+***#***************+++++%@@@@=.@#
#@.-@@@@@%#==++-::=#*-#%=-....:++++++-...-+*#######*************%@@@@@@=.@#
#@.-@@@@@%#===-:::-==-##.....**######**-..=+#%%%%%%%%#########*===#@@@@=.@#
#@.-@@@@@%#===-:::::::##....:#*--=#####=..=+*++++++++=*@@@@@@@@@%%@@@@@=.@#
#@.-@@@@@%#===-:::::::##....:#*----+###=..=+%@@@@@@@%=============#@@@@=.@#
#@.-@@@@@%#===-:::::::##....:#*--=*####=..=+%@@@@@@@@@@@@@@@@@@@@@@@@@@=.@#
#@.-@@@@@%#===-:::::::##....:########=....=+*++++++++=============#@@@@=.@#
#@.-@@@@@%#++=-:::::::##......:******=....=+#%%%%%%%%%%%@@@@@@@@@@@@@@@=.@#
#@.-@@@@@%##%#+=-====-#%--..............-+*####*******++#%%%%%%%%%@@@@@=.@#
#@.-@@@@@@@%%%%*+##%#+##%*.............:=+#%@@@@@@@@@@#***********%@@@@=.@#
#@.-@@@@@@@%##%%*++%%*++%#=:...........=*#**##############@@@@@@@@@@@@@=.@#
#@.-@@@@@@@@@@@%%###%%##%%%*+===-....:=+*%%###############@@@@@@@@@@@@@=.@#
#@.-@@@@@@@@@@@%%%%#%%%%%%%#####*+++=+***#######******************%@@@@=.@#
#@.-@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%@@@@@=.@#
#@.-@@@@#--=%@@@@@%=*@@@=-------+@@#---#@@@@@@@#---@@@*-----------#@@@@=.@#
#@.-@@@@#--=#@@@@@%=*@@@=-------+@@#---#@@@@@@@#---@@@*-----------#@@@@=.@#
#@.-@@@@#--=#@@@@@%=*@@@@@@*--=@@@@#---#@@@@@@@*---@@@*=%@@@@@@@@@@@@@@=.@#
#@.-@@@@#-----------*@@@@@@*--=@@@@@@@@*--#@+--*@@@@@@*-------+%@@@@@@@=.@#
#@.-@@@@#--=#@@@@@%=*@@@@%%+--=%@@@@@@@#==#%+==#@@@@@@*=#%%%%%%%%%@@@@@=.@#
#@.-@@@@#--=#@@@@@%=*@@@--------+@@@@@@@@@+-%@@@@@@@@@*-----------#@@@@=.@#
#@.-@@@@@**#@@@@@@@#%@@@#########@@@@@@@@@%#@@@@@@@@@@%***********%@@@@=.@#
#@.-@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@=.@#
#@.:===================================================================:.@#
#@#######################################################################@%
*/
contract BulkSend {
address public owner;
mapping(address => bool) public approvedTokens;
event TokensApproved(address token);
event TokensDisapproved(address token);
event BulkTransfer(
address token,
address indexed from,
address[] recipients,
uint256[] amounts
);
modifier onlyOwner() {
require(msg.sender == owner, "Only the owner can perform this action");
_;
}
constructor() {
owner = msg.sender;
}
function approveToken(address token) public onlyOwner {
approvedTokens[token] = true;
emit TokensApproved(token);
}
function disapproveToken(address token) public onlyOwner {
approvedTokens[token] = false;
emit TokensDisapproved(token);
}
function bulkTransfer(
address token,
address[] calldata recipients,
uint256[] calldata amounts
) public {
require(approvedTokens[token], "Token not approved");
require(
recipients.length == amounts.length,
"Recipients and amounts length mismatch"
);
IERC20 erc20 = IERC20(token);
for (uint256 i = 0; i < recipients.length; i++) {
require(
erc20.transferFrom(msg.sender, recipients[i], amounts[i]),
"Transfer failed"
);
}
emit BulkTransfer(token, msg.sender, recipients, amounts);
}
}
/*
██████ ██ ▄█▀▄▄▄ ▄▄▄█████▓▓█████ ▄▄▄▄ ▒█████ ▄▄▄ ██▀███ ▓█████▄
▒██ ▒ ██▄█▒▒████▄ ▓ ██▒ ▓▒▓█ ▀ ▓█████▄ ▒██▒ ██▒▒████▄ ▓██ ▒ ██▒▒██▀ ██▌
░ ▓██▄ ▓███▄░▒██ ▀█▄ ▒ ▓██░ ▒░▒███ ▒██▒ ▄██▒██░ ██▒▒██ ▀█▄ ▓██ ░▄█ ▒░██ █▌
▒ ██▒▓██ █▄░██▄▄▄▄██░ ▓██▓ ░ ▒▓█ ▄ ▒██░█▀ ▒██ ██░░██▄▄▄▄██ ▒██▀▀█▄ ░▓█▄ ▌
▒██████▒▒▒██▒ █▄▓█ ▓██▒ ▒██▒ ░ ░▒████▒░▓█ ▀█▓░ ████▓▒░ ▓█ ▓██▒░██▓ ▒██▒░▒████▓
▒ ▒▓▒ ▒ ░▒ ▒▒ ▓▒▒▒ ▓▒█░ ▒ ░░ ░░ ▒░ ░░▒▓███▀▒░ ▒░▒░▒░ ▒▒ ▓▒█░░ ▒▓ ░▒▓░ ▒▒▓ ▒
░ ░▒ ░ ░░ ░▒ ▒░ ▒ ▒▒ ░ ░ ░ ░ ░▒░▒ ░ ░ ▒ ▒░ ▒ ▒▒ ░ ░▒ ░ ▒░ ░ ▒ ▒
░ ░ ░ ░ ░░ ░ ░ ▒ ░ ░ ░ ░ ░ ░ ░ ▒ ░ ▒ ░░ ░ ░ ░ ░
░ ░ ░ ░ ░ ░ ░ ░ ░ ░ ░ ░ ░ ░
░ ░
*/
{
"compilationTarget": {
"BulkSend.sol": "BulkSend"
},
"evmVersion": "cancun",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}
[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"address[]","name":"recipients","type":"address[]"},{"indexed":false,"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"name":"BulkTransfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"token","type":"address"}],"name":"TokensApproved","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"token","type":"address"}],"name":"TokensDisapproved","type":"event"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"approveToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"approvedTokens","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"name":"bulkTransfer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"disapproveToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]