Address Contract Partially Verified
Address
0x8d2AC6Ba2f4340cf53B879FF0dB90382D441A3bA
Balance
0 ETH
Nonce
1
Code Size
15640 bytes
Creator
0xb8810Cf0...09C9 at tx 0x612805bd...3337ba
Indexed Transactions
0 (1 on-chain, 1.3% indexed)
Contract Bytecode
15640 bytes
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Verified Source Code Partial Match
Compiler: v0.8.30+commit.73712a01
EVM: prague
Optimization: No
Ownable.sol 100 lines
// 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);
}
}
IERC20.sol 79 lines
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.20;
/**
* @dev Interface of the ERC-20 standard as defined in the ERC.
*/
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);
}
Context.sol 28 lines
// 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;
}
}
cloak_transfr.sol 342 lines
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
contract CloakTransferContract is Ownable {
address public constant CLOAK_ADDRESS = 0xdE496A902836601E86e79d5B10e713C95580640B;
address public PAYMENT_ADDRESS = 0x64B7FaBdd619B9020859a19f1151a86A9c867bcA;
address public constant BURN_ADDRESS = 0x000000000000000000000000000000000000dEaD;
// File size tier constants (in bytes)
uint256 public constant TIER_1_MIN = 100 * 1024 * 1024; // 100MB
uint256 public constant TIER_1_MAX = 250 * 1024 * 1024; // 250MB
uint256 public constant TIER_2_MAX = 500 * 1024 * 1024; // 500MB
uint256 public constant TIER_3_MAX = 1024 * 1024 * 1024; // 1GB
uint256 public constant TIER_4_MAX = 2 * 1024 * 1024 * 1024; // 2GB
uint256 public constant MAX_FILE_SIZE = 5 * 1024 * 1024 * 1024; // 5GB max
// Pricing for each tier in CLOAK tokens (with 18 decimals)
uint256 public tier1Price; // 100MB-250MB
uint256 public tier2Price; // 250MB-500MB
uint256 public tier3Price; // 500MB-1GB
uint256 public tier4Price; // 1GB-2GB
uint256 public tier5Price; // 2GB-5GB
uint256 public burnPercentage; // Percentage of payment to burn (0-100)
uint256 public MIN_CLOAK_BALANCE = 1e18; // Minimum 1 CLOAK for free tier
uint256 public MAX_FREE_SIZE = 100 * 1024 * 1024; // 100 MB in bytes for free tier
uint256 private constant DECIMALS_MULTIPLIER = 10**18;
IERC20 public cloakToken;
struct FileUpload {
address uploader;
address recipient; // Optional recipient for the file transfer
string fileCID; // Generic file identifier (internally maps to our storage system)
uint256 fileSize; // Size in bytes
uint256 timestamp;
uint256 pricePaid; // Amount paid in CLOAK tokens
string tier; // Which tier was used for pricing
bool active; // Can be deactivated by uploader
}
FileUpload[] public uploads;
event FileUploaded(
uint256 indexed id,
address uploader,
address recipient,
string fileCID,
uint256 fileSize,
uint256 pricePaid,
string tier
);
event FileDeactivated(uint256 indexed id, address uploader);
event TierPricesUpdated(uint256 tier1, uint256 tier2, uint256 tier3, uint256 tier4, uint256 tier5);
constructor() Ownable(msg.sender) {
cloakToken = IERC20(CLOAK_ADDRESS);
burnPercentage = 10; // 10% burn
// Initialize default tier prices (in CLOAK with 18 decimals)
// These can be updated by owner based on USD equivalent
tier1Price = 5 * DECIMALS_MULTIPLIER; // 5 CLOAK for 100MB-250MB
tier2Price = 10 * DECIMALS_MULTIPLIER; // 10 CLOAK for 250MB-500MB
tier3Price = 15 * DECIMALS_MULTIPLIER; // 15 CLOAK for 500MB-1GB
tier4Price = 25 * DECIMALS_MULTIPLIER; // 25 CLOAK for 1GB-2GB
tier5Price = 40 * DECIMALS_MULTIPLIER; // 40 CLOAK for 2GB-5GB
}
// ============= Pricing Functions =============
function getPriceForFileSize(uint256 _fileSize) public view returns (uint256 price, string memory tier) {
require(_fileSize <= MAX_FILE_SIZE, "File size exceeds 5GB maximum limit");
// Free tier for files under 100MB with minimum CLOAK balance
if (_fileSize <= MAX_FREE_SIZE) {
return (0, "FREE");
}
// Tiered pricing based on file size
if (_fileSize <= TIER_1_MAX) {
return (tier1Price, "TIER1"); // 100MB-250MB
} else if (_fileSize <= TIER_2_MAX) {
return (tier2Price, "TIER2"); // 250MB-500MB
} else if (_fileSize <= TIER_3_MAX) {
return (tier3Price, "TIER3"); // 500MB-1GB
} else if (_fileSize <= TIER_4_MAX) {
return (tier4Price, "TIER4"); // 1GB-2GB
} else {
return (tier5Price, "TIER5"); // 2GB-5GB
}
}
function getChargeForMultipleFiles(uint256[] memory _fileSizes) external view returns (uint256) {
uint256 totalCharge = 0;
for (uint i = 0; i < _fileSizes.length; i++) {
(uint256 price,) = getPriceForFileSize(_fileSizes[i]);
totalCharge += price;
}
return totalCharge;
}
function canUserUpload(address _user, uint256 _fileSize) external view returns (bool, string memory) {
uint256 userBalance = cloakToken.balanceOf(_user);
(uint256 price, string memory tier) = getPriceForFileSize(_fileSize);
if (price == 0) { // Free tier
if (userBalance >= MIN_CLOAK_BALANCE) {
return (true, string(abi.encodePacked("Free upload approved for ", tier)));
}
return (false, "Insufficient CLOAK balance for free uploads");
} else {
if (userBalance >= price) {
return (true, string(abi.encodePacked("Paid upload approved for ", tier)));
}
return (false, string(abi.encodePacked("Insufficient CLOAK balance for ", tier)));
}
}
// ============= Owner Functions =============
function updateTierPrices(
uint256 _tier1Price,
uint256 _tier2Price,
uint256 _tier3Price,
uint256 _tier4Price,
uint256 _tier5Price
) external onlyOwner {
tier1Price = _tier1Price * DECIMALS_MULTIPLIER;
tier2Price = _tier2Price * DECIMALS_MULTIPLIER;
tier3Price = _tier3Price * DECIMALS_MULTIPLIER;
tier4Price = _tier4Price * DECIMALS_MULTIPLIER;
tier5Price = _tier5Price * DECIMALS_MULTIPLIER;
emit TierPricesUpdated(tier1Price, tier2Price, tier3Price, tier4Price, tier5Price);
}
function setFreeSizeFile(uint256 _size) external onlyOwner {
MAX_FREE_SIZE = _size;
}
function setMinCloakBalance(uint256 _balance) external onlyOwner {
MIN_CLOAK_BALANCE = _balance * DECIMALS_MULTIPLIER;
}
function setPaymentWallet(address _charge_address) external onlyOwner {
PAYMENT_ADDRESS = _charge_address;
}
function setBurnPercentage(uint256 _percent) external onlyOwner {
require(_percent <= 100, "Percentage must be <= 100");
burnPercentage = _percent;
}
// ============= Upload Functions =============
function uploadFile(
string memory _fileCID,
uint256 _fileSize,
address _recipient
) external returns (uint256) {
return _processUpload(_fileCID, _fileSize, _recipient);
}
function uploadMultipleFiles(
string[] memory _fileCIDs,
uint256[] memory _fileSizes,
address[] memory _recipients
) external returns (uint256[] memory) {
require(_fileCIDs.length == _fileSizes.length, "Arrays length mismatch");
require(_fileCIDs.length == _recipients.length, "Arrays length mismatch");
// Calculate total charge first
uint256 totalCharge = 0;
for (uint i = 0; i < _fileSizes.length; i++) {
(uint256 price,) = getPriceForFileSize(_fileSizes[i]);
totalCharge += price;
}
// Process payment if needed
if (totalCharge > 0) {
cloakToken.transferFrom(msg.sender, address(this), totalCharge);
uint256 burnAmount = (totalCharge * burnPercentage) / 100;
if (burnAmount > 0) {
cloakToken.transfer(BURN_ADDRESS, burnAmount);
}
uint256 paymentAmount = totalCharge - burnAmount;
if (paymentAmount > 0) {
cloakToken.transfer(PAYMENT_ADDRESS, paymentAmount);
}
}
// Process all uploads
uint256[] memory uploadIds = new uint256[](_fileCIDs.length);
for (uint i = 0; i < _fileCIDs.length; i++) {
uploadIds[i] = _recordUpload(_fileCIDs[i], _fileSizes[i], _recipients[i]);
}
return uploadIds;
}
function _processUpload(
string memory _fileCID,
uint256 _fileSize,
address _recipient
) internal returns (uint256) {
require(_fileSize <= MAX_FILE_SIZE, "File exceeds 5GB maximum size");
(uint256 price, string memory tier) = getPriceForFileSize(_fileSize);
if (price == 0) {
// Free upload if holding minimum CLOAK
require(
cloakToken.balanceOf(msg.sender) >= MIN_CLOAK_BALANCE,
"Must hold minimum CLOAK for free uploads"
);
} else {
// Charge for paid tiers
cloakToken.transferFrom(msg.sender, address(this), price);
uint256 burnAmount = (price * burnPercentage) / 100;
if (burnAmount > 0) {
cloakToken.transfer(BURN_ADDRESS, burnAmount);
}
uint256 paymentAmount = price - burnAmount;
if (paymentAmount > 0) {
cloakToken.transfer(PAYMENT_ADDRESS, paymentAmount);
}
}
return _recordUpload(_fileCID, _fileSize, _recipient, price, tier);
}
function _recordUpload(
string memory _fileCID,
uint256 _fileSize,
address _recipient
) internal returns (uint256) {
(uint256 price, string memory tier) = getPriceForFileSize(_fileSize);
return _recordUpload(_fileCID, _fileSize, _recipient, price, tier);
}
function _recordUpload(
string memory _fileCID,
uint256 _fileSize,
address _recipient,
uint256 _pricePaid,
string memory _tier
) internal returns (uint256) {
uploads.push(
FileUpload({
uploader: msg.sender,
recipient: _recipient,
fileCID: _fileCID,
fileSize: _fileSize,
timestamp: block.timestamp,
pricePaid: _pricePaid,
tier: _tier,
active: true
})
);
uint256 uploadId = uploads.length - 1;
emit FileUploaded(uploadId, msg.sender, _recipient, _fileCID, _fileSize, _pricePaid, _tier);
return uploadId;
}
// ============= Access Control Functions =============
function canAccessFile(uint256 _uploadId, address _user) external view returns (bool) {
require(_uploadId < uploads.length, "Invalid upload ID");
FileUpload memory upload = uploads[_uploadId];
if (!upload.active) return false;
// Uploader can always access
if (upload.uploader == _user) return true;
// Recipient can access if specified
if (upload.recipient != address(0) && upload.recipient == _user) return true;
return false;
}
function deactivateUpload(uint256 _uploadId) external {
require(_uploadId < uploads.length, "Invalid upload ID");
require(uploads[_uploadId].uploader == msg.sender, "Only uploader can deactivate");
uploads[_uploadId].active = false;
emit FileDeactivated(_uploadId, msg.sender);
}
// ============= Query Functions =============
function getUploadCount() external view returns (uint256) {
return uploads.length;
}
function getUpload(uint256 _id) external view returns (FileUpload memory) {
require(_id < uploads.length, "Invalid ID");
return uploads[_id];
}
function getUserUploads(address _user) external view returns (uint256[] memory) {
uint256 count = 0;
// Count user's uploads
for (uint i = 0; i < uploads.length; i++) {
if (uploads[i].uploader == _user || uploads[i].recipient == _user) {
count++;
}
}
// Collect upload IDs
uint256[] memory userUploads = new uint256[](count);
uint256 index = 0;
for (uint i = 0; i < uploads.length; i++) {
if (uploads[i].uploader == _user || uploads[i].recipient == _user) {
userUploads[index] = i;
index++;
}
}
return userUploads;
}
// ============= Tier Information Functions =============
function getAllTierPrices() external view returns (uint256, uint256, uint256, uint256, uint256) {
return (tier1Price, tier2Price, tier3Price, tier4Price, tier5Price);
}
function getTierInfo() external pure returns (string memory) {
return "TIER1: 100MB-250MB, TIER2: 250MB-500MB, TIER3: 500MB-1GB, TIER4: 1GB-2GB, TIER5: 2GB-5GB";
}
}
Read Contract
BURN_ADDRESS 0xfccc2813 → address
CLOAK_ADDRESS 0xce7e2847 → address
MAX_FILE_SIZE 0x5a9baf37 → uint256
MAX_FREE_SIZE 0x4b769654 → uint256
MIN_CLOAK_BALANCE 0x20fd6780 → uint256
PAYMENT_ADDRESS 0xe0269505 → address
TIER_1_MAX 0xa62cc6eb → uint256
TIER_1_MIN 0xb0a32c7a → uint256
TIER_2_MAX 0x9ad34845 → uint256
TIER_3_MAX 0x0ba51d09 → uint256
TIER_4_MAX 0x1058299d → uint256
burnPercentage 0xf01f20df → uint256
canAccessFile 0xfc5cc73b → bool
canUserUpload 0x54b43e62 → bool, string
cloakToken 0xabe8386b → address
getAllTierPrices 0x89fb8760 → uint256, uint256, uint256, uint256, uint256
getChargeForMultipleFiles 0x2950a47f → uint256
getPriceForFileSize 0x945e0a4c → uint256, string
getTierInfo 0xeb6cc010 → string
getUpload 0xb83392a8 → tuple
getUploadCount 0xca27cf04 → uint256
getUserUploads 0x412bd348 → uint256[]
owner 0x8da5cb5b → address
tier1Price 0xfb8b51a0 → uint256
tier2Price 0x4a079215 → uint256
tier3Price 0x439d8f4e → uint256
tier4Price 0xef035cd5 → uint256
tier5Price 0x009ae45e → uint256
uploads 0xfbfecaa3 → address, address, string, uint256, uint256, uint256, string, bool
Write Contract 10 functions
These functions modify contract state and require a wallet transaction to execute.
deactivateUpload 0x662b517d
uint256 _uploadId
renounceOwnership 0x715018a6
No parameters
setBurnPercentage 0xc3f0d327
uint256 _percent
setFreeSizeFile 0xfd8c32ef
uint256 _size
setMinCloakBalance 0x8fe02300
uint256 _balance
setPaymentWallet 0xfd6cb613
address _charge_address
transferOwnership 0xf2fde38b
address newOwner
updateTierPrices 0x833ad0ff
uint256 _tier1Price
uint256 _tier2Price
uint256 _tier3Price
uint256 _tier4Price
uint256 _tier5Price
uploadFile 0x5af87fdb
string _fileCID
uint256 _fileSize
address _recipient
returns: uint256
uploadMultipleFiles 0x2784de60
string[] _fileCIDs
uint256[] _fileSizes
address[] _recipients
returns: uint256[]
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