| { | |
| "language": "Solidity", | |
| "sources": { | |
| "contracts/FullFeatureToken.sol": { | |
| "content": "// SPDX-License-Identifier: GPL-3.0\n\npragma solidity 0.8.7;\n\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/extensions/ERC20Pausable.sol\";\nimport {Address} from \"@openzeppelin/contracts/utils/Address.sol\";\nimport {Helpers} from \"./libraries/Helpers.sol\";\n\ncontract FullFeatureToken is ERC20, ERC20Burnable, ERC20Pausable, Ownable {\n uint8 public constant VERSION = 5;\n uint8 private immutable _decimals;\n\n struct ERC20ConfigProps {\n bool _isMintable;\n bool _isBurnable;\n bool _isPausable;\n bool _isBlacklistEnabled;\n bool _isDocumentAllowed;\n bool _isWhitelistEnabled;\n bool _isMaxAmountOfTokensSet;\n bool _isForceTransferAllowed;\n }\n\n ERC20ConfigProps private configProps; // contract properties describing available features\n mapping(address => bool) private _isBlacklisted; // list of blacklisted addresses\n mapping(address => bool) public whitelist; // whitelisted addresses map\n address[] whitelistedAddresses; // array for keeping track of whitelisted users\n string public initialDocumentUri;\n string public documentUri; // URI of the document that exist off-chain\n uint256 public immutable initialSupply;\n uint256 public immutable initialMaxTokenAmountPerAddress;\n uint256 public maxTokenAmountPerAddress; // max token amount per address\n address public immutable initialFeeReceiver;\n address public immutable initialTokenOwner;\n\n event UserBlacklisted(address blacklistedAddress);\n event UserUnBlacklisted(address whitelistedAddress);\n event DocumentUriSet(string newDocUri);\n event MaxTokenAmountPerSet(uint256 newMaxTokenAmount);\n event UsersWhitelisted(address[] updatedAddresses);\n\n constructor(\n string memory name_,\n string memory symbol_,\n uint256 initialSupplyToSet,\n uint8 decimalsToSet,\n address tokenOwner,\n ERC20ConfigProps memory customConfigProps,\n uint256 maxTokenAmount,\n string memory newDocumentUri,\n address payable feeReceiver\n ) payable ERC20(name_, symbol_) {\n require(msg.value > 0, \"Deployment fee required\");\n\n if (customConfigProps._isMaxAmountOfTokensSet) {\n require(\n maxTokenAmount > 0,\n \"Max token amount must be greater than 0\"\n );\n }\n require(decimalsToSet <= 18, \"Decimals are outside of allowed range: 0 - 18\");\n\n Helpers.requireNonZeroAddress(tokenOwner);\n Helpers.requireNonZeroAddress(feeReceiver);\n\n Address.sendValue(feeReceiver, msg.value);\n\n initialSupply = initialSupplyToSet;\n initialMaxTokenAmountPerAddress = maxTokenAmount;\n initialDocumentUri = newDocumentUri;\n initialFeeReceiver = feeReceiver;\n initialTokenOwner = tokenOwner;\n\n _decimals = decimalsToSet;\n configProps = customConfigProps;\n documentUri = newDocumentUri;\n maxTokenAmountPerAddress = maxTokenAmount;\n\n if (initialSupplyToSet > 0) {\n _mint(tokenOwner, initialSupplyToSet * 10**decimalsToSet);\n }\n\n if (tokenOwner != msg.sender) {\n transferOwnership(tokenOwner);\n }\n }\n\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual override(ERC20, ERC20Pausable) {\n super._beforeTokenTransfer(from, to, amount);\n }\n\n function isPausable() external view returns (bool) {\n return configProps._isPausable;\n }\n\n function isMintable() external view returns (bool) {\n return configProps._isMintable;\n }\n\n function isBurnable() external view returns (bool) {\n return configProps._isBurnable;\n }\n\n function isBlacklistEnabled() external view returns (bool) {\n return configProps._isBlacklistEnabled;\n }\n\n function isWhitelistEnabled() external view returns (bool) {\n return configProps._isWhitelistEnabled;\n }\n\n function isMaxAmountOfTokensSet() external view returns (bool) {\n return configProps._isMaxAmountOfTokensSet;\n }\n\n function isDocumentUriAllowed() external view returns (bool) {\n return configProps._isDocumentAllowed;\n }\n\n function isForceTransferAllowed() external view returns (bool) {\n return configProps._isForceTransferAllowed;\n }\n\n function decimals() public view virtual override returns (uint8) {\n return _decimals;\n }\n\n function setDocumentUri(string memory newDocUri) external onlyOwner {\n documentUri = newDocUri;\n\n emit DocumentUriSet(newDocUri);\n }\n\n function setMaxTokenAmountPerAddress(uint256 newMaxTokenAmount)\n external\n onlyOwner\n {\n require(\n newMaxTokenAmount > maxTokenAmountPerAddress,\n \"Cannot set less than last value\"\n );\n maxTokenAmountPerAddress = newMaxTokenAmount;\n\n emit MaxTokenAmountPerSet(newMaxTokenAmount);\n }\n\n function blackList(address user) external onlyOwner whenNotPaused {\n Helpers.requireNonZeroAddress(user);\n require(\n configProps._isBlacklistEnabled,\n \"Blacklisting not possible on this contract\"\n );\n require(!_isBlacklisted[user], \"User already blacklisted!\");\n\n if (configProps._isWhitelistEnabled && whitelist[user]) {\n revert(\"Cannot blacklist a whitelisted address\");\n }\n\n _isBlacklisted[user] = true;\n\n emit UserBlacklisted(user);\n }\n\n function removeFromBlacklist(address user) external onlyOwner whenNotPaused {\n require(\n configProps._isBlacklistEnabled,\n \"Blacklisting not possible on this contract\"\n );\n require(_isBlacklisted[user], \"User already whitelisted\");\n _isBlacklisted[user] = false;\n\n emit UserUnBlacklisted(user);\n }\n\n function transfer(address to, uint256 value)\n public\n virtual\n override\n whenNotPaused\n returns (bool)\n {\n if (configProps._isBlacklistEnabled) {\n require(!_isBlacklisted[to], \"Recipient is blacklisted\");\n require(!_isBlacklisted[msg.sender], \"Sender is blacklisted\");\n }\n if (configProps._isWhitelistEnabled) {\n require(whitelist[to], \"Recipient not whitelisted\");\n require(whitelist[msg.sender], \"Sender not whitelisted\");\n }\n if (configProps._isMaxAmountOfTokensSet) {\n require(\n balanceOf(to) + value <= maxTokenAmountPerAddress,\n \"This address cannot hold that amount of tokens\"\n );\n }\n return super.transfer(to, value);\n }\n\n function transferFrom(\n address from,\n address to,\n uint256 value\n ) public virtual override whenNotPaused returns (bool) {\n if (configProps._isBlacklistEnabled) {\n require(!_isBlacklisted[to], \"Recipient is blacklisted\");\n require(!_isBlacklisted[from], \"Sender is blacklisted\");\n }\n if (configProps._isWhitelistEnabled) {\n require(whitelist[to], \"Recipient not whitelisted\");\n require(whitelist[from], \"Sender not whitelisted\");\n }\n if (configProps._isMaxAmountOfTokensSet) {\n require(\n balanceOf(to) + value <= maxTokenAmountPerAddress,\n \"This address cannot hold that amount of tokens\"\n );\n }\n\n if (configProps._isForceTransferAllowed && owner() == msg.sender) {\n _transfer(from, to, value);\n return true;\n } else {\n return super.transferFrom(from, to, value);\n }\n }\n\n function mint(address account, uint256 amount)\n external\n onlyOwner\n whenNotPaused\n {\n require(\n configProps._isMintable,\n \"Error: mint is not allowed in this contract\"\n );\n if (configProps._isMaxAmountOfTokensSet) {\n require(\n balanceOf(account) + amount <= maxTokenAmountPerAddress,\n \"This address cannot hold that amount of tokens\"\n );\n }\n if (configProps._isBlacklistEnabled) {\n require(!_isBlacklisted[account], \"Recipient is blacklisted\");\n }\n if (configProps._isWhitelistEnabled) {\n require(whitelist[account], \"Recipient not whitelisted\");\n }\n\n super._mint(account, amount);\n }\n\n function burn(uint256 amount) public override onlyOwner whenNotPaused {\n require(\n configProps._isBurnable,\n \"Error: burn is not allowed in this contract\"\n );\n\n super.burn(amount);\n }\n\n function burnFrom(address account, uint256 amount)\n public\n override\n onlyOwner\n whenNotPaused\n {\n require(\n configProps._isBurnable,\n \"Error: burn is not allowed in this contract\"\n );\n\n super.burnFrom(account, amount);\n }\n\n function pause() external onlyOwner {\n require(\n configProps._isPausable,\n \"Error: pause is not allowed in this contract\"\n );\n\n _pause();\n }\n\n function unpause() external onlyOwner {\n require(\n configProps._isPausable,\n \"Error: unpause is not allowed in this contract\"\n );\n\n _unpause();\n }\n\n function renounceOwnership() public override onlyOwner whenNotPaused {\n super.renounceOwnership();\n }\n\n function transferOwnership(address newOwner)\n public\n override\n onlyOwner\n whenNotPaused\n {\n super.transferOwnership(newOwner);\n }\n\n /**\n * @notice Method for updating whitelist\n * @param updatedAddresses new whitelist addresses\n */\n function updateWhitelist(address[] memory updatedAddresses)\n external\n payable\n onlyOwner\n {\n require(configProps._isWhitelistEnabled, \"Whitelist not enabled\");\n\n _removeFromWhitelist(whitelistedAddresses);\n _addManyToWhitelist(updatedAddresses);\n whitelistedAddresses = updatedAddresses;\n\n emit UsersWhitelisted(updatedAddresses);\n }\n\n function getWhitelistedAddresses() external view returns (address[] memory) {\n return whitelistedAddresses;\n }\n\n /**\n * @dev Adds list of addresses to whitelist.\n * @param _beneficiaries Addresses to be added to the whitelist\n */\n function _addManyToWhitelist(address[] memory _beneficiaries) internal {\n for (uint256 i = 0; i < _beneficiaries.length; i++) {\n Helpers.requireNonZeroAddress(_beneficiaries[i]);\n if (configProps._isBlacklistEnabled && _isBlacklisted[_beneficiaries[i]]) {\n revert(\"Cannot whitelist a blacklisted address\");\n }\n\n whitelist[_beneficiaries[i]] = true;\n }\n }\n\n /**\n * @dev Cleans whitelist, removing every user.\n * @param _beneficiaries Addresses to be unlisted\n */\n function _removeFromWhitelist(address[] memory _beneficiaries) internal {\n for (uint256 i = 0; i < _beneficiaries.length; i++) {\n whitelist[_beneficiaries[i]] = false;\n }\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/token/ERC20/ERC20.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20.sol\";\nimport \"./extensions/IERC20Metadata.sol\";\nimport \"../../utils/Context.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n mapping(address => uint256) private _balances;\n\n mapping(address => mapping(address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n string private _symbol;\n\n /**\n * @dev Sets the values for {name} and {symbol}.\n *\n * The default value of {decimals} is 18. To select a different value for\n * {decimals} you should overload it.\n *\n * All two of these values are immutable: they can only be set once during\n * construction.\n */\n constructor(string memory name_, string memory symbol_) {\n _name = name_;\n _symbol = symbol_;\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view virtual override returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view virtual override returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the number of decimals used to get its user representation.\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n *\n * Tokens usually opt for a value of 18, imitating the relationship between\n * Ether and Wei. This is the value {ERC20} uses, unless this function is\n * overridden;\n *\n * NOTE: This information is only used for _display_ purposes: it in\n * no way affects any of the arithmetic of the contract, including\n * {IERC20-balanceOf} and {IERC20-transfer}.\n */\n function decimals() public view virtual override returns (uint8) {\n return 18;\n }\n\n /**\n * @dev See {IERC20-totalSupply}.\n */\n function totalSupply() public view virtual override returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev See {IERC20-balanceOf}.\n */\n function balanceOf(address account) public view virtual override returns (uint256) {\n return _balances[account];\n }\n\n /**\n * @dev See {IERC20-transfer}.\n *\n * Requirements:\n *\n * - `to` cannot be the zero address.\n * - the caller must have a balance of at least `amount`.\n */\n function transfer(address to, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _transfer(owner, to, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-allowance}.\n */\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n /**\n * @dev See {IERC20-approve}.\n *\n * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n * `transferFrom`. This is semantically equivalent to an infinite approval.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-transferFrom}.\n *\n * Emits an {Approval} event indicating the updated allowance. This is not\n * required by the EIP. See the note at the beginning of {ERC20}.\n *\n * NOTE: Does not update the allowance if the current allowance\n * is the maximum `uint256`.\n *\n * Requirements:\n *\n * - `from` and `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n * - the caller must have allowance for ``from``'s tokens of at least\n * `amount`.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) public virtual override returns (bool) {\n address spender = _msgSender();\n _spendAllowance(from, spender, amount);\n _transfer(from, to, amount);\n return true;\n }\n\n /**\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n address owner = _msgSender();\n _approve(owner, spender, allowance(owner, spender) + addedValue);\n return true;\n }\n\n /**\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `spender` must have allowance for the caller of at least\n * `subtractedValue`.\n */\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n address owner = _msgSender();\n uint256 currentAllowance = allowance(owner, spender);\n require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n unchecked {\n _approve(owner, spender, currentAllowance - subtractedValue);\n }\n\n return true;\n }\n\n /**\n * @dev Moves `amount` of tokens from `sender` to `recipient`.\n *\n * This internal function is equivalent to {transfer}, and can be used to\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n *\n * Emits a {Transfer} event.\n *\n * Requirements:\n *\n * - `from` cannot be the zero address.\n * - `to` cannot be the zero address.\n * - `from` must have a balance of at least `amount`.\n */\n function _transfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {\n require(from != address(0), \"ERC20: transfer from the zero address\");\n require(to != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(from, to, amount);\n\n uint256 fromBalance = _balances[from];\n require(fromBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n unchecked {\n _balances[from] = fromBalance - amount;\n }\n _balances[to] += amount;\n\n emit Transfer(from, to, amount);\n\n _afterTokenTransfer(from, to, amount);\n }\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n * the total supply.\n *\n * Emits a {Transfer} event with `from` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n */\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply += amount;\n _balances[account] += amount;\n emit Transfer(address(0), account, amount);\n\n _afterTokenTransfer(address(0), account, amount);\n }\n\n /**\n * @dev Destroys `amount` tokens from `account`, reducing the\n * total supply.\n *\n * Emits a {Transfer} event with `to` set to the zero address.\n *\n * Requirements:\n *\n * - `account` cannot be the zero address.\n * - `account` must have at least `amount` tokens.\n */\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n uint256 accountBalance = _balances[account];\n require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n unchecked {\n _balances[account] = accountBalance - amount;\n }\n _totalSupply -= amount;\n\n emit Transfer(account, address(0), amount);\n\n _afterTokenTransfer(account, address(0), amount);\n }\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n *\n * This internal function is equivalent to `approve`, and can be used to\n * e.g. set automatic allowances for certain subsystems, etc.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `owner` cannot be the zero address.\n * - `spender` cannot be the zero address.\n */\n function _approve(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n emit Approval(owner, spender, amount);\n }\n\n /**\n * @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n *\n * Does not update the allowance amount in case of infinite allowance.\n * Revert if not enough allowance is available.\n *\n * Might emit an {Approval} event.\n */\n function _spendAllowance(\n address owner,\n address spender,\n uint256 amount\n ) internal virtual {\n uint256 currentAllowance = allowance(owner, spender);\n if (currentAllowance != type(uint256).max) {\n require(currentAllowance >= amount, \"ERC20: insufficient allowance\");\n unchecked {\n _approve(owner, spender, currentAllowance - amount);\n }\n }\n }\n\n /**\n * @dev Hook that is called before any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * will be transferred to `to`.\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n\n /**\n * @dev Hook that is called after any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * has been transferred to `to`.\n * - when `from` is zero, `amount` tokens have been minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _afterTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual {}\n}\n" | |
| }, | |
| "@openzeppelin/contracts/access/Ownable.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n address private _owner;\n\n event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n /**\n * @dev Initializes the contract setting the deployer as the initial owner.\n */\n constructor() {\n _transferOwnership(_msgSender());\n }\n\n /**\n * @dev Returns the address of the current owner.\n */\n function owner() public view virtual returns (address) {\n return _owner;\n }\n\n /**\n * @dev Throws if called by any account other than the owner.\n */\n modifier onlyOwner() {\n require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n _;\n }\n\n /**\n * @dev Leaves the contract without owner. It will not be possible to call\n * `onlyOwner` functions anymore. Can only be called by the current owner.\n *\n * NOTE: Renouncing ownership will leave the contract without an owner,\n * thereby removing any functionality that is only available to the owner.\n */\n function renounceOwnership() public virtual onlyOwner {\n _transferOwnership(address(0));\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Can only be called by the current owner.\n */\n function transferOwnership(address newOwner) public virtual onlyOwner {\n require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n _transferOwnership(newOwner);\n }\n\n /**\n * @dev Transfers ownership of the contract to a new account (`newOwner`).\n * Internal function without access restriction.\n */\n function _transferOwnership(address newOwner) internal virtual {\n address oldOwner = _owner;\n _owner = newOwner;\n emit OwnershipTransferred(oldOwner, newOwner);\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../ERC20.sol\";\nimport \"../../../utils/Context.sol\";\n\n/**\n * @dev Extension of {ERC20} that allows token holders to destroy both their own\n * tokens and those that they have an allowance for, in a way that can be\n * recognized off-chain (via event analysis).\n */\nabstract contract ERC20Burnable is Context, ERC20 {\n /**\n * @dev Destroys `amount` tokens from the caller.\n *\n * See {ERC20-_burn}.\n */\n function burn(uint256 amount) public virtual {\n _burn(_msgSender(), amount);\n }\n\n /**\n * @dev Destroys `amount` tokens from `account`, deducting from the caller's\n * allowance.\n *\n * See {ERC20-_burn} and {ERC20-allowance}.\n *\n * Requirements:\n *\n * - the caller must have allowance for ``accounts``'s tokens of at least\n * `amount`.\n */\n function burnFrom(address account, uint256 amount) public virtual {\n _spendAllowance(account, _msgSender(), amount);\n _burn(account, amount);\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/token/ERC20/extensions/ERC20Pausable.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/ERC20Pausable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../ERC20.sol\";\nimport \"../../../security/Pausable.sol\";\n\n/**\n * @dev ERC20 token with pausable token transfers, minting and burning.\n *\n * Useful for scenarios such as preventing trades until the end of an evaluation\n * period, or having an emergency switch for freezing all token transfers in the\n * event of a large bug.\n */\nabstract contract ERC20Pausable is ERC20, Pausable {\n /**\n * @dev See {ERC20-_beforeTokenTransfer}.\n *\n * Requirements:\n *\n * - the contract must not be paused.\n */\n function _beforeTokenTransfer(\n address from,\n address to,\n uint256 amount\n ) internal virtual override {\n super._beforeTokenTransfer(from, to, amount);\n\n require(!paused(), \"ERC20Pausable: token transfer while paused\");\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/utils/Address.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n /**\n * @dev Returns true if `account` is a contract.\n *\n * [IMPORTANT]\n * ====\n * It is unsafe to assume that an address for which this function returns\n * false is an externally-owned account (EOA) and not a contract.\n *\n * Among others, `isContract` will return false for the following\n * types of addresses:\n *\n * - an externally-owned account\n * - a contract in construction\n * - an address where a contract will be created\n * - an address where a contract lived, but was destroyed\n * ====\n *\n * [IMPORTANT]\n * ====\n * You shouldn't rely on `isContract` to protect against flash loan attacks!\n *\n * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n * constructor.\n * ====\n */\n function isContract(address account) internal view returns (bool) {\n // This method relies on extcodesize/address.code.length, which returns 0\n // for contracts in construction, since the code is only stored at the end\n // of the constructor execution.\n\n return account.code.length > 0;\n }\n\n /**\n * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n * `recipient`, forwarding all available gas and reverting on errors.\n *\n * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n * of certain opcodes, possibly making contracts go over the 2300 gas limit\n * imposed by `transfer`, making them unable to receive funds via\n * `transfer`. {sendValue} removes this limitation.\n *\n * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n *\n * IMPORTANT: because control is transferred to `recipient`, care must be\n * taken to not create reentrancy vulnerabilities. Consider using\n * {ReentrancyGuard} or the\n * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n */\n function sendValue(address payable recipient, uint256 amount) internal {\n require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n (bool success, ) = recipient.call{value: amount}(\"\");\n require(success, \"Address: unable to send value, recipient may have reverted\");\n }\n\n /**\n * @dev Performs a Solidity function call using a low level `call`. A\n * plain `call` is an unsafe replacement for a function call: use this\n * function instead.\n *\n * If `target` reverts with a revert reason, it is bubbled up by this\n * function (like regular Solidity function calls).\n *\n * Returns the raw returned data. To convert to the expected return value,\n * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n *\n * Requirements:\n *\n * - `target` must be a contract.\n * - calling `target` with `data` must not revert.\n *\n * _Available since v3.1._\n */\n function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionCall(target, data, \"Address: low-level call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n * `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, 0, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but also transferring `value` wei to `target`.\n *\n * Requirements:\n *\n * - the calling contract must have an ETH balance of at least `value`.\n * - the called Solidity function must be `payable`.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value\n ) internal returns (bytes memory) {\n return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n * with `errorMessage` as a fallback revert reason when `target` reverts.\n *\n * _Available since v3.1._\n */\n function functionCallWithValue(\n address target,\n bytes memory data,\n uint256 value,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(address(this).balance >= value, \"Address: insufficient balance for call\");\n require(isContract(target), \"Address: call to non-contract\");\n\n (bool success, bytes memory returndata) = target.call{value: value}(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n return functionStaticCall(target, data, \"Address: low-level static call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a static call.\n *\n * _Available since v3.3._\n */\n function functionStaticCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal view returns (bytes memory) {\n require(isContract(target), \"Address: static call to non-contract\");\n\n (bool success, bytes memory returndata) = target.staticcall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n }\n\n /**\n * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n * but performing a delegate call.\n *\n * _Available since v3.4._\n */\n function functionDelegateCall(\n address target,\n bytes memory data,\n string memory errorMessage\n ) internal returns (bytes memory) {\n require(isContract(target), \"Address: delegate call to non-contract\");\n\n (bool success, bytes memory returndata) = target.delegatecall(data);\n return verifyCallResult(success, returndata, errorMessage);\n }\n\n /**\n * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n * revert reason using the provided one.\n *\n * _Available since v4.3._\n */\n function verifyCallResult(\n bool success,\n bytes memory returndata,\n string memory errorMessage\n ) internal pure returns (bytes memory) {\n if (success) {\n return returndata;\n } else {\n // Look for revert reason and bubble it up if present\n if (returndata.length > 0) {\n // The easiest way to bubble the revert reason is using memory via assembly\n\n assembly {\n let returndata_size := mload(returndata)\n revert(add(32, returndata), returndata_size)\n }\n } else {\n revert(errorMessage);\n }\n }\n }\n}\n" | |
| }, | |
| "contracts/libraries/Helpers.sol": { | |
| "content": "// SPDX-License-Identifier: GPL-3.0\n\npragma solidity 0.8.7;\n\nlibrary Helpers {\n function requireNonZeroAddress(address addr) internal pure {\n require(addr != address(0x0), \"Address can't be Zero\");\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/token/ERC20/IERC20.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n /**\n * @dev Emitted when `value` tokens are moved from one account (`from`) to\n * another (`to`).\n *\n * Note that `value` may be zero.\n */\n event Transfer(address indexed from, address indexed to, uint256 value);\n\n /**\n * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n * a call to {approve}. `value` is the new allowance.\n */\n event Approval(address indexed owner, address indexed spender, uint256 value);\n\n /**\n * @dev Returns the amount of tokens in existence.\n */\n function totalSupply() external view returns (uint256);\n\n /**\n * @dev Returns the amount of tokens owned by `account`.\n */\n function balanceOf(address account) external view returns (uint256);\n\n /**\n * @dev Moves `amount` tokens from the caller's account to `to`.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transfer(address to, uint256 amount) external returns (bool);\n\n /**\n * @dev Returns the remaining number of tokens that `spender` will be\n * allowed to spend on behalf of `owner` through {transferFrom}. This is\n * zero by default.\n *\n * This value changes when {approve} or {transferFrom} are called.\n */\n function allowance(address owner, address spender) external view returns (uint256);\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * IMPORTANT: Beware that changing an allowance with this method brings the risk\n * that someone may use both the old and the new allowance by unfortunate\n * transaction ordering. One possible solution to mitigate this race\n * condition is to first reduce the spender's allowance to 0 and set the\n * desired value afterwards:\n * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n *\n * Emits an {Approval} event.\n */\n function approve(address spender, uint256 amount) external returns (bool);\n\n /**\n * @dev Moves `amount` tokens from `from` to `to` using the\n * allowance mechanism. `amount` is then deducted from the caller's\n * allowance.\n *\n * Returns a boolean value indicating whether the operation succeeded.\n *\n * Emits a {Transfer} event.\n */\n function transferFrom(\n address from,\n address to,\n uint256 amount\n ) external returns (bool);\n}\n" | |
| }, | |
| "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n /**\n * @dev Returns the name of the token.\n */\n function name() external view returns (string memory);\n\n /**\n * @dev Returns the symbol of the token.\n */\n function symbol() external view returns (string memory);\n\n /**\n * @dev Returns the decimals places of the token.\n */\n function decimals() external view returns (uint8);\n}\n" | |
| }, | |
| "@openzeppelin/contracts/utils/Context.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n function _msgSender() internal view virtual returns (address) {\n return msg.sender;\n }\n\n function _msgData() internal view virtual returns (bytes calldata) {\n return msg.data;\n }\n}\n" | |
| }, | |
| "@openzeppelin/contracts/security/Pausable.sol": { | |
| "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (security/Pausable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which allows children to implement an emergency stop\n * mechanism that can be triggered by an authorized account.\n *\n * This module is used through inheritance. It will make available the\n * modifiers `whenNotPaused` and `whenPaused`, which can be applied to\n * the functions of your contract. Note that they will not be pausable by\n * simply including this module, only once the modifiers are put in place.\n */\nabstract contract Pausable is Context {\n /**\n * @dev Emitted when the pause is triggered by `account`.\n */\n event Paused(address account);\n\n /**\n * @dev Emitted when the pause is lifted by `account`.\n */\n event Unpaused(address account);\n\n bool private _paused;\n\n /**\n * @dev Initializes the contract in unpaused state.\n */\n constructor() {\n _paused = false;\n }\n\n /**\n * @dev Returns true if the contract is paused, and false otherwise.\n */\n function paused() public view virtual returns (bool) {\n return _paused;\n }\n\n /**\n * @dev Modifier to make a function callable only when the contract is not paused.\n *\n * Requirements:\n *\n * - The contract must not be paused.\n */\n modifier whenNotPaused() {\n require(!paused(), \"Pausable: paused\");\n _;\n }\n\n /**\n * @dev Modifier to make a function callable only when the contract is paused.\n *\n * Requirements:\n *\n * - The contract must be paused.\n */\n modifier whenPaused() {\n require(paused(), \"Pausable: not paused\");\n _;\n }\n\n /**\n * @dev Triggers stopped state.\n *\n * Requirements:\n *\n * - The contract must not be paused.\n */\n function _pause() internal virtual whenNotPaused {\n _paused = true;\n emit Paused(_msgSender());\n }\n\n /**\n * @dev Returns to normal state.\n *\n * Requirements:\n *\n * - The contract must be paused.\n */\n function _unpause() internal virtual whenPaused {\n _paused = false;\n emit Unpaused(_msgSender());\n }\n}\n" | |
| } | |
| }, | |
| "settings": { | |
| "optimizer": { | |
| "enabled": false, | |
| "runs": 200 | |
| }, | |
| "outputSelection": { | |
| "*": { | |
| "*": [ | |
| "evm.bytecode", | |
| "evm.deployedBytecode", | |
| "devdoc", | |
| "userdoc", | |
| "metadata", | |
| "abi" | |
| ] | |
| } | |
| }, | |
| "libraries": {} | |
| } | |
| } |