Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

interface IERC165    - function supportsInterface(bytes4 int ...  contract IERC721 is IERC165    - function balanceOf(address owner)    - function ownerOf(uint256 tokenId)    - function approve(address to, uint256 ...    - function getApproved(uint256 tokenId)    - function setApprovalForAll(address op ...    - function isApprovedForAll(address own ...    - function transferFrom(address from, a ...    - function safeTransferFrom(address fro ...    - function safeTransferFrom(  contract IERC721Receiver    - function onERC721Received( library SafeMath    - function mul(uint256 a, uint256 b)    - function div(uint256 a, uint256 b)    - function sub(uint256 a, uint256 b)    - function add(uint256 a, uint256 b)    - function mod(uint256 a, uint256 b) library Address    - function isContract(address account)  contract ERC165 is IERC165    - function supportsInterface(bytes4 int ...    - function _registerInterface(bytes4 in ...  contract ERC721 is ERC165, IERC721    - function balanceOf(address owner)    - function ownerOf(uint256 tokenId)    - function approve(address to, uint256 ...    - function getApproved(uint256 tokenId)    - function setApprovalForAll(address to ...    - function isApprovedForAll(    - function transferFrom(    - function safeTransferFrom(    - function safeTransferFrom(    - function _exists(uint256 tokenId)    - function _isApprovedOrOwner(    - function _mint(address to, uint256 to ...    - function _burn(address owner, uint256 ...    - function _addTokenTo(address to, uint ...    - function _removeTokenFrom(address fro ...    - function _checkOnERC721Received(    - function _clearApproval(address owner ...  contract IERC721Enumerable is IERC ...    - function totalSupply()    - function tokenOfOwnerByIndex(    - function tokenByIndex(uint256 index)  contract ERC721Enumerable is ERC16 ...    - function tokenOfOwnerByIndex(    - function totalSupply()    - function tokenByIndex(uint256 index)    - function _addTokenTo(address to, uint ...    - function _removeTokenFrom(address fro ...    - function _mint(address to, uint256 to ...    - function _burn(address owner, uint256 ...  contract IERC721Metadata is IERC72 ...    - function name()    - function symbol()    - function tokenURI(uint256 tokenId)  contract ERC721Metadata is ERC165, ...    - function name()    - function symbol()    - function tokenURI(uint256 tokenId)    - function _setTokenURI(uint256 tokenId ...    - function _burn(address owner, uint256 ...  contract ERC721Full is ERC721, ERC ...  contract CoinGeckoXmas2018NFToken ... *    - function createNFToken(string _tokenU ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2018-12-14
*/

pragma solidity ^0.4.24;

// File: openzeppelin-solidity/contracts/introspection/IERC165.sol

/**
 * @title IERC165
 * @dev https://github.com/ethereum/EIPs/blob/master/EIPS/eip-165.md
 */
interface IERC165 {

  /**
   * @notice Query if a contract implements an interface
   * @param interfaceId The interface identifier, as specified in ERC-165
   * @dev Interface identification is specified in ERC-165. This function
   * uses less than 30,000 gas.
   */
  function supportsInterface(bytes4 interfaceId)
    external
    view
    returns (bool);
}

// File: openzeppelin-solidity/contracts/token/ERC721/IERC721.sol

/**
 * @title ERC721 Non-Fungible Token Standard basic interface
 * @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
 */
contract IERC721 is IERC165 {

  event Transfer(
    address indexed from,
    address indexed to,
    uint256 indexed tokenId
  );
  event Approval(
    address indexed owner,
    address indexed approved,
    uint256 indexed tokenId
  );
  event ApprovalForAll(
    address indexed owner,
    address indexed operator,
    bool approved
  );

  function balanceOf(address owner) public view returns (uint256 balance);
  function ownerOf(uint256 tokenId) public view returns (address owner);

  function approve(address to, uint256 tokenId) public;
  function getApproved(uint256 tokenId)
    public view returns (address operator);

  function setApprovalForAll(address operator, bool _approved) public;
  function isApprovedForAll(address owner, address operator)
    public view returns (bool);

  function transferFrom(address from, address to, uint256 tokenId) public;
  function safeTransferFrom(address from, address to, uint256 tokenId)
    public;

  function safeTransferFrom(
    address from,
    address to,
    uint256 tokenId,
    bytes data
  )
    public;
}

// File: openzeppelin-solidity/contracts/token/ERC721/IERC721Receiver.sol

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
contract IERC721Receiver {
  /**
   * @notice Handle the receipt of an NFT
   * @dev The ERC721 smart contract calls this function on the recipient
   * after a `safeTransfer`. This function MUST return the function selector,
   * otherwise the caller will revert the transaction. The selector to be
   * returned can be obtained as `this.onERC721Received.selector`. This
   * function MAY throw to revert and reject the transfer.
   * Note: the ERC721 contract address is always the message sender.
   * @param operator The address which called `safeTransferFrom` function
   * @param from The address which previously owned the token
   * @param tokenId The NFT identifier which is being transferred
   * @param data Additional data with no specified format
   * @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
   */
  function onERC721Received(
    address operator,
    address from,
    uint256 tokenId,
    bytes data
  )
    public
    returns(bytes4);
}

// File: openzeppelin-solidity/contracts/math/SafeMath.sol

/**
 * @title SafeMath
 * @dev Math operations with safety checks that revert on error
 */
library SafeMath {

  /**
  * @dev Multiplies two numbers, reverts on overflow.
  */
  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
    // benefit is lost if 'b' is also tested.
    // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
    if (a == 0) {
      return 0;
    }

    uint256 c = a * b;
    require(c / a == b);

    return c;
  }

  /**
  * @dev Integer division of two numbers truncating the quotient, reverts on division by zero.
  */
  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b > 0); // Solidity only automatically asserts when dividing by 0
    uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold

    return c;
  }

  /**
  * @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
  */
  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b <= a);
    uint256 c = a - b;

    return c;
  }

  /**
  * @dev Adds two numbers, reverts on overflow.
  */
  function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    require(c >= a);

    return c;
  }

  /**
  * @dev Divides two numbers and returns the remainder (unsigned integer modulo),
  * reverts when dividing by zero.
  */
  function mod(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b != 0);
    return a % b;
  }
}

// File: openzeppelin-solidity/contracts/utils/Address.sol

/**
 * Utility library of inline functions on addresses
 */
library Address {

  /**
   * Returns whether the target address is a contract
   * @dev This function will return false if invoked during the constructor of a contract,
   * as the code is not actually created until after the constructor finishes.
   * @param account address of the account to check
   * @return whether the target address is a contract
   */
  function isContract(address account) internal view returns (bool) {
    uint256 size;
    // XXX Currently there is no better way to check if there is a contract in an address
    // than to check the size of the code at that address.
    // See https://ethereum.stackexchange.com/a/14016/36603
    // for more details about how this works.
    // TODO Check this again before the Serenity release, because all addresses will be
    // contracts then.
    // solium-disable-next-line security/no-inline-assembly
    assembly { size := extcodesize(account) }
    return size > 0;
  }

}

// File: openzeppelin-solidity/contracts/introspection/ERC165.sol

/**
 * @title ERC165
 * @author Matt Condon (@shrugs)
 * @dev Implements ERC165 using a lookup table.
 */
contract ERC165 is IERC165 {

  bytes4 private constant _InterfaceId_ERC165 = 0x01ffc9a7;
  /**
   * 0x01ffc9a7 ===
   *   bytes4(keccak256('supportsInterface(bytes4)'))
   */

  /**
   * @dev a mapping of interface id to whether or not it's supported
   */
  mapping(bytes4 => bool) private _supportedInterfaces;

  /**
   * @dev A contract implementing SupportsInterfaceWithLookup
   * implement ERC165 itself
   */
  constructor()
    internal
  {
    _registerInterface(_InterfaceId_ERC165);
  }

  /**
   * @dev implement supportsInterface(bytes4) using a lookup table
   */
  function supportsInterface(bytes4 interfaceId)
    external
    view
    returns (bool)
  {
    return _supportedInterfaces[interfaceId];
  }

  /**
   * @dev internal method for registering an interface
   */
  function _registerInterface(bytes4 interfaceId)
    internal
  {
    require(interfaceId != 0xffffffff);
    _supportedInterfaces[interfaceId] = true;
  }
}

// File: openzeppelin-solidity/contracts/token/ERC721/ERC721.sol

/**
 * @title ERC721 Non-Fungible Token Standard basic implementation
 * @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
 */
contract ERC721 is ERC165, IERC721 {

  using SafeMath for uint256;
  using Address for address;

  // Equals to `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
  // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`
  bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;

  // Mapping from token ID to owner
  mapping (uint256 => address) private _tokenOwner;

  // Mapping from token ID to approved address
  mapping (uint256 => address) private _tokenApprovals;

  // Mapping from owner to number of owned token
  mapping (address => uint256) private _ownedTokensCount;

  // Mapping from owner to operator approvals
  mapping (address => mapping (address => bool)) private _operatorApprovals;

  bytes4 private constant _InterfaceId_ERC721 = 0x80ac58cd;
  /*
   * 0x80ac58cd ===
   *   bytes4(keccak256('balanceOf(address)')) ^
   *   bytes4(keccak256('ownerOf(uint256)')) ^
   *   bytes4(keccak256('approve(address,uint256)')) ^
   *   bytes4(keccak256('getApproved(uint256)')) ^
   *   bytes4(keccak256('setApprovalForAll(address,bool)')) ^
   *   bytes4(keccak256('isApprovedForAll(address,address)')) ^
   *   bytes4(keccak256('transferFrom(address,address,uint256)')) ^
   *   bytes4(keccak256('safeTransferFrom(address,address,uint256)')) ^
   *   bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)'))
   */

  constructor()
    public
  {
    // register the supported interfaces to conform to ERC721 via ERC165
    _registerInterface(_InterfaceId_ERC721);
  }

  /**
   * @dev Gets the balance of the specified address
   * @param owner address to query the balance of
   * @return uint256 representing the amount owned by the passed address
   */
  function balanceOf(address owner) public view returns (uint256) {
    require(owner != address(0));
    return _ownedTokensCount[owner];
  }

  /**
   * @dev Gets the owner of the specified token ID
   * @param tokenId uint256 ID of the token to query the owner of
   * @return owner address currently marked as the owner of the given token ID
   */
  function ownerOf(uint256 tokenId) public view returns (address) {
    address owner = _tokenOwner[tokenId];
    require(owner != address(0));
    return owner;
  }

  /**
   * @dev Approves another address to transfer the given token ID
   * The zero address indicates there is no approved address.
   * There can only be one approved address per token at a given time.
   * Can only be called by the token owner or an approved operator.
   * @param to address to be approved for the given token ID
   * @param tokenId uint256 ID of the token to be approved
   */
  function approve(address to, uint256 tokenId) public {
    address owner = ownerOf(tokenId);
    require(to != owner);
    require(msg.sender == owner || isApprovedForAll(owner, msg.sender));

    _tokenApprovals[tokenId] = to;
    emit Approval(owner, to, tokenId);
  }

  /**
   * @dev Gets the approved address for a token ID, or zero if no address set
   * Reverts if the token ID does not exist.
   * @param tokenId uint256 ID of the token to query the approval of
   * @return address currently approved for the given token ID
   */
  function getApproved(uint256 tokenId) public view returns (address) {
    require(_exists(tokenId));
    return _tokenApprovals[tokenId];
  }

  /**
   * @dev Sets or unsets the approval of a given operator
   * An operator is allowed to transfer all tokens of the sender on their behalf
   * @param to operator address to set the approval
   * @param approved representing the status of the approval to be set
   */
  function setApprovalForAll(address to, bool approved) public {
    require(to != msg.sender);
    _operatorApprovals[msg.sender][to] = approved;
    emit ApprovalForAll(msg.sender, to, approved);
  }

  /**
   * @dev Tells whether an operator is approved by a given owner
   * @param owner owner address which you want to query the approval of
   * @param operator operator address which you want to query the approval of
   * @return bool whether the given operator is approved by the given owner
   */
  function isApprovedForAll(
    address owner,
    address operator
  )
    public
    view
    returns (bool)
  {
    return _operatorApprovals[owner][operator];
  }

  /**
   * @dev Transfers the ownership of a given token ID to another address
   * Usage of this method is discouraged, use `safeTransferFrom` whenever possible
   * Requires the msg sender to be the owner, approved, or operator
   * @param from current owner of the token
   * @param to address to receive the ownership of the given token ID
   * @param tokenId uint256 ID of the token to be transferred
  */
  function transferFrom(
    address from,
    address to,
    uint256 tokenId
  )
    public
  {
    require(_isApprovedOrOwner(msg.sender, tokenId));
    require(to != address(0));

    _clearApproval(from, tokenId);
    _removeTokenFrom(from, tokenId);
    _addTokenTo(to, tokenId);

    emit Transfer(from, to, tokenId);
  }

  /**
   * @dev Safely transfers the ownership of a given token ID to another address
   * If the target address is a contract, it must implement `onERC721Received`,
   * which is called upon a safe transfer, and return the magic value
   * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
   * the transfer is reverted.
   *
   * Requires the msg sender to be the owner, approved, or operator
   * @param from current owner of the token
   * @param to address to receive the ownership of the given token ID
   * @param tokenId uint256 ID of the token to be transferred
  */
  function safeTransferFrom(
    address from,
    address to,
    uint256 tokenId
  )
    public
  {
    // solium-disable-next-line arg-overflow
    safeTransferFrom(from, to, tokenId, "");
  }

  /**
   * @dev Safely transfers the ownership of a given token ID to another address
   * If the target address is a contract, it must implement `onERC721Received`,
   * which is called upon a safe transfer, and return the magic value
   * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
   * the transfer is reverted.
   * Requires the msg sender to be the owner, approved, or operator
   * @param from current owner of the token
   * @param to address to receive the ownership of the given token ID
   * @param tokenId uint256 ID of the token to be transferred
   * @param _data bytes data to send along with a safe transfer check
   */
  function safeTransferFrom(
    address from,
    address to,
    uint256 tokenId,
    bytes _data
  )
    public
  {
    transferFrom(from, to, tokenId);
    // solium-disable-next-line arg-overflow
    require(_checkOnERC721Received(from, to, tokenId, _data));
  }

  /**
   * @dev Returns whether the specified token exists
   * @param tokenId uint256 ID of the token to query the existence of
   * @return whether the token exists
   */
  function _exists(uint256 tokenId) internal view returns (bool) {
    address owner = _tokenOwner[tokenId];
    return owner != address(0);
  }

  /**
   * @dev Returns whether the given spender can transfer a given token ID
   * @param spender address of the spender to query
   * @param tokenId uint256 ID of the token to be transferred
   * @return bool whether the msg.sender is approved for the given token ID,
   *  is an operator of the owner, or is the owner of the token
   */
  function _isApprovedOrOwner(
    address spender,
    uint256 tokenId
  )
    internal
    view
    returns (bool)
  {
    address owner = ownerOf(tokenId);
    // Disable solium check because of
    // https://github.com/duaraghav8/Solium/issues/175
    // solium-disable-next-line operator-whitespace
    return (
      spender == owner ||
      getApproved(tokenId) == spender ||
      isApprovedForAll(owner, spender)
    );
  }

  /**
   * @dev Internal function to mint a new token
   * Reverts if the given token ID already exists
   * @param to The address that will own the minted token
   * @param tokenId uint256 ID of the token to be minted by the msg.sender
   */
  function _mint(address to, uint256 tokenId) internal {
    require(to != address(0));
    _addTokenTo(to, tokenId);
    emit Transfer(address(0), to, tokenId);
  }

  /**
   * @dev Internal function to burn a specific token
   * Reverts if the token does not exist
   * @param tokenId uint256 ID of the token being burned by the msg.sender
   */
  function _burn(address owner, uint256 tokenId) internal {
    _clearApproval(owner, tokenId);
    _removeTokenFrom(owner, tokenId);
    emit Transfer(owner, address(0), tokenId);
  }

  /**
   * @dev Internal function to add a token ID to the list of a given address
   * Note that this function is left internal to make ERC721Enumerable possible, but is not
   * intended to be called by custom derived contracts: in particular, it emits no Transfer event.
   * @param to address representing the new owner of the given token ID
   * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
   */
  function _addTokenTo(address to, uint256 tokenId) internal {
    require(_tokenOwner[tokenId] == address(0));
    _tokenOwner[tokenId] = to;
    _ownedTokensCount[to] = _ownedTokensCount[to].add(1);
  }

  /**
   * @dev Internal function to remove a token ID from the list of a given address
   * Note that this function is left internal to make ERC721Enumerable possible, but is not
   * intended to be called by custom derived contracts: in particular, it emits no Transfer event,
   * and doesn't clear approvals.
   * @param from address representing the previous owner of the given token ID
   * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
   */
  function _removeTokenFrom(address from, uint256 tokenId) internal {
    require(ownerOf(tokenId) == from);
    _ownedTokensCount[from] = _ownedTokensCount[from].sub(1);
    _tokenOwner[tokenId] = address(0);
  }

  /**
   * @dev Internal function to invoke `onERC721Received` on a target address
   * The call is not executed if the target address is not a contract
   * @param from address representing the previous owner of the given token ID
   * @param to target address that will receive the tokens
   * @param tokenId uint256 ID of the token to be transferred
   * @param _data bytes optional data to send along with the call
   * @return whether the call correctly returned the expected magic value
   */
  function _checkOnERC721Received(
    address from,
    address to,
    uint256 tokenId,
    bytes _data
  )
    internal
    returns (bool)
  {
    if (!to.isContract()) {
      return true;
    }
    bytes4 retval = IERC721Receiver(to).onERC721Received(
      msg.sender, from, tokenId, _data);
    return (retval == _ERC721_RECEIVED);
  }

  /**
   * @dev Private function to clear current approval of a given token ID
   * Reverts if the given address is not indeed the owner of the token
   * @param owner owner of the token
   * @param tokenId uint256 ID of the token to be transferred
   */
  function _clearApproval(address owner, uint256 tokenId) private {
    require(ownerOf(tokenId) == owner);
    if (_tokenApprovals[tokenId] != address(0)) {
      _tokenApprovals[tokenId] = address(0);
    }
  }
}

// File: openzeppelin-solidity/contracts/token/ERC721/IERC721Enumerable.sol

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
 */
contract IERC721Enumerable is IERC721 {
  function totalSupply() public view returns (uint256);
  function tokenOfOwnerByIndex(
    address owner,
    uint256 index
  )
    public
    view
    returns (uint256 tokenId);

  function tokenByIndex(uint256 index) public view returns (uint256);
}

// File: openzeppelin-solidity/contracts/token/ERC721/ERC721Enumerable.sol

contract ERC721Enumerable is ERC165, ERC721, IERC721Enumerable {
  // Mapping from owner to list of owned token IDs
  mapping(address => uint256[]) private _ownedTokens;

  // Mapping from token ID to index of the owner tokens list
  mapping(uint256 => uint256) private _ownedTokensIndex;

  // Array with all token ids, used for enumeration
  uint256[] private _allTokens;

  // Mapping from token id to position in the allTokens array
  mapping(uint256 => uint256) private _allTokensIndex;

  bytes4 private constant _InterfaceId_ERC721Enumerable = 0x780e9d63;
  /**
   * 0x780e9d63 ===
   *   bytes4(keccak256('totalSupply()')) ^
   *   bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) ^
   *   bytes4(keccak256('tokenByIndex(uint256)'))
   */

  /**
   * @dev Constructor function
   */
  constructor() public {
    // register the supported interface to conform to ERC721 via ERC165
    _registerInterface(_InterfaceId_ERC721Enumerable);
  }

  /**
   * @dev Gets the token ID at a given index of the tokens list of the requested owner
   * @param owner address owning the tokens list to be accessed
   * @param index uint256 representing the index to be accessed of the requested tokens list
   * @return uint256 token ID at the given index of the tokens list owned by the requested address
   */
  function tokenOfOwnerByIndex(
    address owner,
    uint256 index
  )
    public
    view
    returns (uint256)
  {
    require(index < balanceOf(owner));
    return _ownedTokens[owner][index];
  }

  /**
   * @dev Gets the total amount of tokens stored by the contract
   * @return uint256 representing the total amount of tokens
   */
  function totalSupply() public view returns (uint256) {
    return _allTokens.length;
  }

  /**
   * @dev Gets the token ID at a given index of all the tokens in this contract
   * Reverts if the index is greater or equal to the total number of tokens
   * @param index uint256 representing the index to be accessed of the tokens list
   * @return uint256 token ID at the given index of the tokens list
   */
  function tokenByIndex(uint256 index) public view returns (uint256) {
    require(index < totalSupply());
    return _allTokens[index];
  }

  /**
   * @dev Internal function to add a token ID to the list of a given address
   * This function is internal due to language limitations, see the note in ERC721.sol.
   * It is not intended to be called by custom derived contracts: in particular, it emits no Transfer event.
   * @param to address representing the new owner of the given token ID
   * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
   */
  function _addTokenTo(address to, uint256 tokenId) internal {
    super._addTokenTo(to, tokenId);
    uint256 length = _ownedTokens[to].length;
    _ownedTokens[to].push(tokenId);
    _ownedTokensIndex[tokenId] = length;
  }

  /**
   * @dev Internal function to remove a token ID from the list of a given address
   * This function is internal due to language limitations, see the note in ERC721.sol.
   * It is not intended to be called by custom derived contracts: in particular, it emits no Transfer event,
   * and doesn't clear approvals.
   * @param from address representing the previous owner of the given token ID
   * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
   */
  function _removeTokenFrom(address from, uint256 tokenId) internal {
    super._removeTokenFrom(from, tokenId);

    // To prevent a gap in the array, we store the last token in the index of the token to delete, and
    // then delete the last slot.
    uint256 tokenIndex = _ownedTokensIndex[tokenId];
    uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);
    uint256 lastToken = _ownedTokens[from][lastTokenIndex];

    _ownedTokens[from][tokenIndex] = lastToken;
    // This also deletes the contents at the last position of the array
    _ownedTokens[from].length--;

    // Note that this will handle single-element arrays. In that case, both tokenIndex and lastTokenIndex are going to
    // be zero. Then we can make sure that we will remove tokenId from the ownedTokens list since we are first swapping
    // the lastToken to the first position, and then dropping the element placed in the last position of the list

    _ownedTokensIndex[tokenId] = 0;
    _ownedTokensIndex[lastToken] = tokenIndex;
  }

  /**
   * @dev Internal function to mint a new token
   * Reverts if the given token ID already exists
   * @param to address the beneficiary that will own the minted token
   * @param tokenId uint256 ID of the token to be minted by the msg.sender
   */
  function _mint(address to, uint256 tokenId) internal {
    super._mint(to, tokenId);

    _allTokensIndex[tokenId] = _allTokens.length;
    _allTokens.push(tokenId);
  }

  /**
   * @dev Internal function to burn a specific token
   * Reverts if the token does not exist
   * @param owner owner of the token to burn
   * @param tokenId uint256 ID of the token being burned by the msg.sender
   */
  function _burn(address owner, uint256 tokenId) internal {
    super._burn(owner, tokenId);

    // Reorg all tokens array
    uint256 tokenIndex = _allTokensIndex[tokenId];
    uint256 lastTokenIndex = _allTokens.length.sub(1);
    uint256 lastToken = _allTokens[lastTokenIndex];

    _allTokens[tokenIndex] = lastToken;
    _allTokens[lastTokenIndex] = 0;

    _allTokens.length--;
    _allTokensIndex[tokenId] = 0;
    _allTokensIndex[lastToken] = tokenIndex;
  }
}

// File: openzeppelin-solidity/contracts/token/ERC721/IERC721Metadata.sol

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
 */
contract IERC721Metadata is IERC721 {
  function name() external view returns (string);
  function symbol() external view returns (string);
  function tokenURI(uint256 tokenId) external view returns (string);
}

// File: openzeppelin-solidity/contracts/token/ERC721/ERC721Metadata.sol

contract ERC721Metadata is ERC165, ERC721, IERC721Metadata {
  // Token name
  string private _name;

  // Token symbol
  string private _symbol;

  // Optional mapping for token URIs
  mapping(uint256 => string) private _tokenURIs;

  bytes4 private constant InterfaceId_ERC721Metadata = 0x5b5e139f;
  /**
   * 0x5b5e139f ===
   *   bytes4(keccak256('name()')) ^
   *   bytes4(keccak256('symbol()')) ^
   *   bytes4(keccak256('tokenURI(uint256)'))
   */

  /**
   * @dev Constructor function
   */
  constructor(string name, string symbol) public {
    _name = name;
    _symbol = symbol;

    // register the supported interfaces to conform to ERC721 via ERC165
    _registerInterface(InterfaceId_ERC721Metadata);
  }

  /**
   * @dev Gets the token name
   * @return string representing the token name
   */
  function name() external view returns (string) {
    return _name;
  }

  /**
   * @dev Gets the token symbol
   * @return string representing the token symbol
   */
  function symbol() external view returns (string) {
    return _symbol;
  }

  /**
   * @dev Returns an URI for a given token ID
   * Throws if the token ID does not exist. May return an empty string.
   * @param tokenId uint256 ID of the token to query
   */
  function tokenURI(uint256 tokenId) external view returns (string) {
    require(_exists(tokenId));
    return _tokenURIs[tokenId];
  }

  /**
   * @dev Internal function to set the token URI for a given token
   * Reverts if the token ID does not exist
   * @param tokenId uint256 ID of the token to set its URI
   * @param uri string URI to assign
   */
  function _setTokenURI(uint256 tokenId, string uri) internal {
    require(_exists(tokenId));
    _tokenURIs[tokenId] = uri;
  }

  /**
   * @dev Internal function to burn a specific token
   * Reverts if the token does not exist
   * @param owner owner of the token to burn
   * @param tokenId uint256 ID of the token being burned by the msg.sender
   */
  function _burn(address owner, uint256 tokenId) internal {
    super._burn(owner, tokenId);

    // Clear metadata (if any)
    if (bytes(_tokenURIs[tokenId]).length != 0) {
      delete _tokenURIs[tokenId];
    }
  }
}

// File: openzeppelin-solidity/contracts/token/ERC721/ERC721Full.sol

/**
 * @title Full ERC721 Token
 * This implementation includes all the required and some optional functionality of the ERC721 standard
 * Moreover, it includes approve all functionality using operator terminology
 * @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
 */
contract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {
  constructor(string name, string symbol) ERC721Metadata(name, symbol)
    public
  {
  }
}

// File: contracts/CoinGeckoXmas2018NFToken.sol

contract CoinGeckoXmas2018NFToken is ERC721Full {

  uint public index;
  address public owner;
  struct CoinGeckoXmas2018NFToken {
    string tokenURI;
    bool exists;
  }
  mapping(bytes32 => CoinGeckoXmas2018NFToken) CoinGeckoXmas2018NFTokens;

  constructor() ERC721Full("CoinGecko Xmas 2018 NFToken", "GECKOX18") public {
    owner = msg.sender;
    index = 0;
  }

  function createNFToken(string _tokenURI) public returns (uint) {
    require(owner == msg.sender); // Only contract creator can call this method
    require(index < 100); // Only allow maximum of 100 tokens to be created
    bytes32 hash = keccak256(abi.encodePacked(_tokenURI));
    require(CoinGeckoXmas2018NFTokens[hash].exists != true);

    CoinGeckoXmas2018NFTokens[hash] = CoinGeckoXmas2018NFToken(_tokenURI, true);

    index += 1;
    _mint(msg.sender, index);
    _setTokenURI(index, _tokenURI); // Store the metadata json
    return index;
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":true,"inputs":[{"name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"to","type":"address"},{"name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"from","type":"address"},{"name":"to","type":"address"},{"name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"index","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"owner","type":"address"},{"name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"from","type":"address"},{"name":"to","type":"address"},{"name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_tokenURI","type":"string"}],"name":"createNFToken","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"to","type":"address"},{"name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"from","type":"address"},{"name":"to","type":"address"},{"name":"tokenId","type":"uint256"},{"name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"owner","type":"address"},{"name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":true,"name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"approved","type":"address"},{"indexed":true,"name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"operator","type":"address"},{"indexed":false,"name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"}]

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

bzzr://0f99b9edca5842f8ab462b4371e3bc6d19d6218c999aa50b9f834ae34a60caa3