mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
347 lines
13 KiB
Solidity
347 lines
13 KiB
Solidity
pragma solidity >=0.0;
|
||
|
||
import "./safeMath.sol";
|
||
import "./tokenDB.sol";
|
||
import "./module.sol";
|
||
|
||
contract thirdPartyPContractAbstract {
|
||
function receiveCorionPremiumToken(address, uint256, bytes calldata) external returns (bool, uint256) {}
|
||
function approvedCorionPremiumToken(address, uint256, bytes calldata) external returns (bool) {}
|
||
}
|
||
|
||
contract ptokenDB is tokenDB {}
|
||
|
||
/**
|
||
*
|
||
* @title Corion Platform Premium Token
|
||
* @author iFA @ Corion Platform
|
||
*
|
||
*/
|
||
contract premium is module, safeMath {
|
||
function replaceModule(address payable addr) external override returns (bool success) {
|
||
require( super.isModuleHandler(msg.sender) );
|
||
require( db.replaceOwner(addr) );
|
||
super._replaceModule(addr);
|
||
return true;
|
||
}
|
||
modifier isReady {
|
||
(bool _success, bool _active) = super.isActive();
|
||
require( _success && _active );
|
||
_;
|
||
}
|
||
|
||
string public name = "Corion Premium";
|
||
string public symbol = "CORP";
|
||
uint8 public decimals = 0;
|
||
|
||
address public icoAddr;
|
||
tokenDB public db;
|
||
bool public isICO;
|
||
|
||
mapping(address => bool) public genesis;
|
||
|
||
constructor(bool forReplace, address payable moduleHandler, address dbAddress, address icoContractAddr, address[] memory genesisAddr, uint256[] memory genesisValue) public {
|
||
/*
|
||
Setup function.
|
||
If an ICOaddress is defined then the balance of the genesis addresses will be set as well.
|
||
|
||
@forReplace This address will be replaced with the old one or not.
|
||
@moduleHandler Modulhandler’s address
|
||
@dbAddress Address of database
|
||
@icoContractAddr Address of ico contract.
|
||
@genesisAddr Array of the genesis addresses.
|
||
@genesisValue Array of the balance of the genesis addresses
|
||
*/
|
||
super.registerModuleHandler(moduleHandler);
|
||
require( dbAddress != address(0x00) );
|
||
db = ptokenDB(dbAddress);
|
||
if ( ! forReplace ) {
|
||
require( db.replaceOwner(address(this)) );
|
||
isICO = true;
|
||
icoAddr = icoContractAddr;
|
||
assert( genesisAddr.length == genesisValue.length );
|
||
for ( uint256 a=0 ; a<genesisAddr.length ; a++ ) {
|
||
genesis[genesisAddr[a]] = true;
|
||
require( db.increase(genesisAddr[a], genesisValue[a]) );
|
||
emit Mint(genesisAddr[a], genesisValue[a]);
|
||
}
|
||
}
|
||
}
|
||
|
||
function closeIco() external returns (bool success) {
|
||
/*
|
||
Finishing the ICO. Can be invited only by an ICO contract.
|
||
|
||
@success If the function was successful.
|
||
*/
|
||
require( isICO );
|
||
isICO = false;
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* @notice `msg.sender` approves `spender` to spend `amount` tokens on its behalf.
|
||
* @param spender The address of the account able to transfer the tokens
|
||
* @param amount The amount of tokens to be approved for transfer
|
||
* @param nonce The transaction count of the authorised address
|
||
* @return success True if the approval was successful
|
||
*/
|
||
function approve(address spender, uint256 amount, uint256 nonce) isReady external returns (bool success) {
|
||
/*
|
||
Authorize another address to use an exact amount of the principal’s balance.
|
||
|
||
@spender Address of authorised party
|
||
@amount Token quantity
|
||
@nonce Transaction count
|
||
|
||
@success Was the Function successful?
|
||
*/
|
||
_approve(spender, amount, nonce);
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* @notice `msg.sender` approves `spender` to spend `amount` tokens on its behalf and notify the spender from your approve with your `extraData` data.
|
||
* @param spender The address of the account able to transfer the tokens
|
||
* @param amount The amount of tokens to be approved for transfer
|
||
* @param nonce The transaction count of the authorised address
|
||
* @param extraData Data to give forward to the receiver
|
||
* @return success True if the approval was successful
|
||
*/
|
||
function approveAndCall(address spender, uint256 amount, uint256 nonce, bytes calldata extraData) isReady external returns (bool success) {
|
||
/*
|
||
Authorize another address to use an exact amount of the principal’s balance.
|
||
After the transaction the approvedCorionPremiumToken function of the address will be called with the given data.
|
||
|
||
@spender Authorized address
|
||
@amount Token quantity
|
||
@extraData Extra data to be received by the receiver
|
||
@nonce Transaction count
|
||
|
||
@success Was the Function successful?
|
||
*/
|
||
_approve(spender, amount, nonce);
|
||
require( thirdPartyPContractAbstract(spender).approvedCorionPremiumToken(msg.sender, amount, extraData) );
|
||
return true;
|
||
}
|
||
|
||
function _approve(address spender, uint256 amount, uint256 nonce) isReady internal {
|
||
/*
|
||
Inner function to authorize another address to use an exact amount of the principal’s balance.
|
||
If the transaction count not match the authorise fails.
|
||
|
||
@spender Address of authorised party
|
||
@amount Token quantity
|
||
@nonce Transaction count
|
||
*/
|
||
require( msg.sender != spender );
|
||
require( db.balanceOf(msg.sender) >= amount );
|
||
require( db.setAllowance(msg.sender, spender, amount, nonce) );
|
||
emit Approval(msg.sender, spender, amount);
|
||
}
|
||
|
||
function allowance(address owner, address spender) public view returns (uint256 remaining, uint256 nonce) {
|
||
/*
|
||
Get the quantity of tokens given to be used
|
||
|
||
@owner Authorising address
|
||
@spender Authorised address
|
||
|
||
@remaining Tokens to be spent
|
||
@nonce Transaction count
|
||
*/
|
||
(bool _success, uint256 _remaining, uint256 _nonce) = db.getAllowance(owner, spender);
|
||
require( _success );
|
||
return (_remaining, _nonce);
|
||
}
|
||
|
||
/**
|
||
* @notice Send `amount` Corion tokens to `to` from `msg.sender`
|
||
* @param to The address of the recipient
|
||
* @param amount The amount of tokens to be transferred
|
||
* @return success Whether the transfer was successful or not
|
||
*/
|
||
function transfer(address to, uint256 amount) isReady external returns (bool success) {
|
||
/*
|
||
Launch a transaction where the token is sent from the sender’s address to the receiver’s address.
|
||
Transaction fee is going to be added as well.
|
||
If the receiver is not a natural address but also a person then she/he will be invited as well.
|
||
|
||
@to For who
|
||
@amount Amount
|
||
|
||
@success Was the function successful?
|
||
*/
|
||
bytes memory _data;
|
||
if ( isContract(to) ) {
|
||
transferToContract(msg.sender, to, amount, _data);
|
||
} else {
|
||
_transfer(msg.sender, to, amount);
|
||
}
|
||
emit Transfer(msg.sender, to, amount, _data);
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* @notice Send `amount` tokens to `to` from `from` on the condition it is approved by `from`
|
||
* @param from The address holding the tokens being transferred
|
||
* @param to The address of the recipient
|
||
* @param amount The amount of tokens to be transferred
|
||
* @return success True if the transfer was successful
|
||
*/
|
||
function transferFrom(address from, address to, uint256 amount) isReady external returns (bool success) {
|
||
/*
|
||
Launch a transaction where we transfer from a given address to another one. It can only be called by an address which was allowed before.
|
||
Transaction fee will be charged too.
|
||
If the receiver is not a natural address but also a person then she/he will be invited as well
|
||
|
||
@from From who?
|
||
@to For who?
|
||
@amount Amount
|
||
|
||
@success If the function was successful.
|
||
*/
|
||
if ( from != msg.sender ) {
|
||
(bool _success, uint256 _reamining, uint256 _nonce) = db.getAllowance(from, msg.sender);
|
||
require( _success );
|
||
_reamining = safeSub(_reamining, amount);
|
||
_nonce = safeAdd(_nonce, 1);
|
||
require( db.setAllowance(from, msg.sender, _reamining, _nonce) );
|
||
emit AllowanceUsed(msg.sender, from, amount);
|
||
}
|
||
bytes memory _data;
|
||
if ( isContract(to) ) {
|
||
transferToContract(from, to, amount, _data);
|
||
} else {
|
||
_transfer( from, to, amount);
|
||
}
|
||
emit Transfer(from, to, amount, _data);
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* @notice Send `amount` Corion tokens to `to` from `msg.sender` and notify the receiver from your transaction with your `extraData` data
|
||
* @param to The contract address of the recipient
|
||
* @param amount The amount of tokens to be transferred
|
||
* @param extraData Data to give forward to the receiver
|
||
* @return success Whether the transfer was successful or not
|
||
*/
|
||
function transfer(address to, uint256 amount, bytes calldata extraData) isReady external returns (bool success) {
|
||
/*
|
||
Launch a transaction where we transfer from a given address to another one.
|
||
After thetransaction the approvedCorionPremiumToken function of the receiver’s address is going to be called with the given data.
|
||
|
||
@to For who?
|
||
@amount Amount
|
||
@extraData Extra data that will be given to the receiver
|
||
|
||
@success If the function was successful.
|
||
*/
|
||
if ( isContract(to) ) {
|
||
transferToContract(msg.sender, to, amount, extraData);
|
||
} else {
|
||
_transfer( msg.sender, to, amount);
|
||
}
|
||
emit Transfer(msg.sender, to, amount, extraData);
|
||
return true;
|
||
}
|
||
|
||
function transferToContract(address from, address to, uint256 amount, bytes memory extraData) internal {
|
||
/*
|
||
Inner function in order to transact a contract.
|
||
|
||
@to For who?
|
||
@amount Amount
|
||
@extraData Extra data that will be given to the receiver
|
||
*/
|
||
_transfer(from, to, amount);
|
||
(bool _success, uint256 _back) = thirdPartyPContractAbstract(to).receiveCorionPremiumToken(from, amount, extraData);
|
||
require( _success );
|
||
require( amount > _back );
|
||
if ( _back > 0 ) {
|
||
_transfer(to, from, _back);
|
||
}
|
||
}
|
||
|
||
function _transfer(address from, address to, uint256 amount) isReady internal {
|
||
/*
|
||
Inner function to launch a transaction.
|
||
During the ICO transactions are only possible from the genesis address.
|
||
0xa636a97578d26a3b76b060bbc18226d954cf3757 address is blacklisted.
|
||
|
||
@from From how?
|
||
@to For who?
|
||
@amount Amount
|
||
*/
|
||
require( from != address(0x00) && to != address(0x00) && to != 0xa636A97578d26A3b76B060Bbc18226d954cf3757 );
|
||
require( ( ! isICO) || genesis[from] );
|
||
require( db.decrease(from, amount) );
|
||
require( db.increase(to, amount) );
|
||
}
|
||
|
||
function mint(address owner, uint256 value) external returns (bool success) {
|
||
/*
|
||
Generating tokens. It can be called only by ICO contract.
|
||
|
||
@owner Address
|
||
@value Amount.
|
||
|
||
@success Was the Function successful?
|
||
*/
|
||
require( msg.sender == icoAddr || isICO );
|
||
_mint(owner, value);
|
||
return true;
|
||
}
|
||
|
||
function _mint(address owner, uint256 value) isReady internal {
|
||
/*
|
||
Inner function to create a token.
|
||
|
||
@owner Address of crediting the token.
|
||
@value Amount
|
||
*/
|
||
require( db.increase(owner, value) );
|
||
emit Mint(owner, value);
|
||
}
|
||
|
||
function isContract(address addr) internal returns (bool success) {
|
||
/*
|
||
Inner function in order to check if the given address is a natural address or a contract.
|
||
|
||
@addr The address which is needed to be checked.
|
||
|
||
@success Is the address crontact or not
|
||
*/
|
||
uint256 _codeLength;
|
||
assembly {
|
||
_codeLength := extcodesize(addr)
|
||
}
|
||
return _codeLength > 0;
|
||
}
|
||
|
||
function balanceOf(address owner) public view returns (uint256 value) {
|
||
/*
|
||
Token balance query
|
||
|
||
@owner Address
|
||
@value Balance of address
|
||
*/
|
||
return db.balanceOf(owner);
|
||
}
|
||
|
||
function totalSupply() public view returns (uint256 value) {
|
||
/*
|
||
Total token quantity query
|
||
|
||
@value Total token quantity
|
||
*/
|
||
return db.totalSupply();
|
||
}
|
||
|
||
event AllowanceUsed(address indexed spender, address indexed owner, uint256 indexed value);
|
||
event Mint(address indexed addr, uint256 indexed value);
|
||
event Burn(address indexed addr, uint256 indexed value);
|
||
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
|
||
event Transfer(address indexed _from, address indexed _to, uint256 _value, bytes _extraData);
|
||
}
|