Allows explicit token factory version in generateSecurityToken()

CHANGELOG.md

@@ -21,6 +21,8 @@ All notable changes to this project will be documented in this file.
 * Replaced `updatePolyTokenAddress()` function with `updateFromRegistry()` in `SecurityTokenRegistry`.  
 * Migrate all the getters of `SecurityTokenRegsitry.sol` to `STRGetter.sol` contract.
 * Removed `_polyToken` parameter from `initialize` function in `SecurityTokenRegistry`.
+* Allows an explicit token factory version to be used during creation of securityToken.
+* Rename the `getProtocolVersion()` to `getLatestProtocolVersion()`.
 * Return SecurityToken version in the `getSecurityTokenData()` function.
 
 ## GeneralTransferManager

contracts/STRGetter.sol

@@ -222,7 +222,7 @@ contract STRGetter is EternalStorage {
     /**
      * @notice Gets Protocol version
      */
-    function getProtocolVersion() public view returns(uint8[] memory) {
+    function getLatestProtocolVersion() public view returns(uint8[] memory) {
         return VersionUtils.unpack(uint24(getUintValue(Encoder.getKey("latestVersion"))));
     }
 

contracts/SecurityTokenRegistry.sol

@@ -104,7 +104,8 @@ contract SecurityTokenRegistry is EternalStorage, Proxy {
         address _registrant,
         bool _fromAdmin,
         uint256 _usdFee,
-        uint256 _polyFee
+        uint256 _polyFee,
+        uint256 _protocolVersion
     );
     // Emit after ticker registration
     event RegisterTicker(
@@ -487,41 +488,64 @@ contract SecurityTokenRegistry is EternalStorage, Proxy {
      * @param _ticker is the ticker symbol of the security token
      * @param _tokenDetails is the off-chain details of the token
      * @param _divisible is whether or not the token is divisible
+     * @param _protocolVersion Version of securityToken contract
+     * - `_protocolVersion` is the packed value of uin8[3] array (it will be calculated offchain)
+     * - if _protocolVersion == 0 then latest version of securityToken will be generated
      */
     function generateSecurityToken(
         string calldata _name,
         string calldata _ticker,
         string calldata _tokenDetails,
-        bool _divisible
+        bool _divisible,
+        uint256 _protocolVersion
     )
         external
         whenNotPausedOrOwner
     {
+        uint256 protocolVersion = _protocolVersion;
         require(bytes(_name).length > 0 && bytes(_ticker).length > 0, "Bad ticker");
+        if (_protocolVersion == 0) {
+            protocolVersion = getUintValue(Encoder.getKey("latestVersion"));
+        }
+        require(protocolVersion != uint256(0), "Invalid version");
         string memory ticker = Util.upper(_ticker);
         bytes32 statusKey = Encoder.getKey("registeredTickers_status", ticker);
         require(!getBoolValue(statusKey), "Already deployed");
         set(statusKey, true);
         require(_tickerOwner(ticker) == msg.sender, "Not authorised");
         /*solium-disable-next-line security/no-block-members*/
         require(getUintValue(Encoder.getKey("registeredTickers_expiryDate", ticker)) >= now, "Ticker expired");
-        (uint256 _usdFee, uint256 _polyFee) = _takeFee(STLAUNCHFEE);
+        _deployToken(_name, ticker, _tokenDetails, msg.sender, _divisible, protocolVersion); 
+    }
 
-        address newSecurityTokenAddress = ISTFactory(getAddressValue(Encoder.getKey("protocolVersionST", getUintValue(Encoder.getKey("latestVersion"))))).deployToken(
+    function _deployToken(
+        string memory _name,
+        string memory _ticker,
+        string memory _tokenDetails,
+        address _issuer,
+        bool _divisible,
+        uint256 _protocolVersion
+    ) 
+        internal
+    {
+        (uint256 _usdFee, uint256 _polyFee) = _takeFee(STLAUNCHFEE);
+        address newSecurityTokenAddress = ISTFactory(getAddressValue(Encoder.getKey("protocolVersionST", _protocolVersion))).deployToken(
             _name,
-            ticker,
+            _ticker,
             18,
             _tokenDetails,
-            msg.sender,
+            _issuer,
             _divisible,
             getAddressValue(POLYMATHREGISTRY)
         );
 
         /*solium-disable-next-line security/no-block-members*/
-        _storeSecurityTokenData(newSecurityTokenAddress, ticker, _tokenDetails, now);
-        set(Encoder.getKey("tickerToSecurityToken", ticker), newSecurityTokenAddress);
+        _storeSecurityTokenData(newSecurityTokenAddress, _ticker, _tokenDetails, now);
+        set(Encoder.getKey("tickerToSecurityToken", _ticker), newSecurityTokenAddress);
         /*solium-disable-next-line security/no-block-members*/
-        emit NewSecurityToken(ticker, _name, newSecurityTokenAddress, msg.sender, now, msg.sender, false, _usdFee, _polyFee);
+        emit NewSecurityToken(
+            _ticker, _name, newSecurityTokenAddress, msg.sender, now, msg.sender, false, _usdFee, _polyFee, _protocolVersion
+        );
     }
 
     /**
@@ -543,7 +567,7 @@ contract SecurityTokenRegistry is EternalStorage, Proxy {
     )
         external
         onlyOwner
-    {
+    {   
         require(bytes(_name).length > 0 && bytes(_ticker).length > 0, "Bad data");
         require(bytes(_ticker).length <= 10, "Bad ticker");
         require(_deployedAt != 0 && _owner != address(0), "Bad data");
@@ -559,7 +583,9 @@ contract SecurityTokenRegistry is EternalStorage, Proxy {
         set(Encoder.getKey("tickerToSecurityToken", ticker), _securityToken);
         _modifyTicker(_owner, ticker, _name, registrationTime, expiryTime, true);
         _storeSecurityTokenData(_securityToken, ticker, _tokenDetails, _deployedAt);
-        emit NewSecurityToken(ticker, _name, _securityToken, _owner, _deployedAt, msg.sender, true, uint256(0), uint256(0));
+        emit NewSecurityToken(
+            ticker, _name, _securityToken, _owner, _deployedAt, msg.sender, true, uint256(0), uint256(0), 0
+        );
     }
 
     /**

contracts/interfaces/ISecurityTokenRegistry.sol

@@ -5,13 +5,22 @@ pragma solidity ^0.5.0;
  */
 interface ISecurityTokenRegistry {
     /**
-     * @notice Creates a new Security Token and saves it to the registry
-     * @param _name Name of the token
-     * @param _ticker Ticker ticker of the security token
-     * @param _tokenDetails Off-chain details of the token
-     * @param _divisible Whether the token is divisible or not
-     */
-    function generateSecurityToken(string calldata _name, string calldata _ticker, string calldata _tokenDetails, bool _divisible) external;
+     * @notice Deploys an instance of a new Security Token and records it to the registry
+     * @param _name is the name of the token
+     * @param _ticker is the ticker symbol of the security token
+     * @param _tokenDetails is the off-chain details of the token
+     * @param _divisible is whether or not the token is divisible
+     * @param _protocolVersion Version of securityToken contract
+     * - `_protocolVersion` is the packed value of uin8[3] array (it will be calculated offchain)
+     * - if _protocolVersion == 0 then latest version of securityToken will be generated
+     */
+    function generateSecurityToken(
+        string calldata _name,
+        string calldata _ticker,
+        string calldata _tokenDetails,
+        bool _divisible,
+        uint256 _protocolVersion
+    ) external;
 
     /**
      * @notice Adds a new custom Security Token and saves it to the registry. (Token should follow the ISecurityToken interface)

contracts/mocks/STFactoryMock.sol

@@ -0,0 +1,52 @@
+pragma solidity ^0.5.0;
+
+import "./SecurityTokenMock.sol";
+import "../interfaces/ISTFactory.sol";
+import "../datastore/DataStoreFactory.sol";
+
+/**
+ * @title Proxy for deploying SecurityToken instances
+ */
+contract STFactoryMock is ISTFactory {
+    address public transferManagerFactory;
+    address public stDelegate;
+    DataStoreFactory public dataStoreFactory;
+
+    constructor(address _transferManagerFactory, address _dataStoreFactory, address _stDelegate) public {
+        transferManagerFactory = _transferManagerFactory;
+        dataStoreFactory = DataStoreFactory(_dataStoreFactory);
+        stDelegate = _stDelegate;
+    }
+
+    /**
+     * @notice deploys the token and adds default modules like the GeneralTransferManager.
+     * Future versions of the proxy can attach different modules or pass different parameters.
+     */
+    function deployToken(
+        string calldata _name,
+        string calldata _symbol,
+        uint8 _decimals,
+        string calldata _tokenDetails,
+        address _issuer,
+        bool _divisible,
+        address _polymathRegistry
+    ) 
+        external 
+        returns(address) 
+    {
+        SecurityTokenMock newSecurityToken = new SecurityTokenMock(
+            _name,
+            _symbol,
+            _decimals,
+            _divisible ? 1 : uint256(10) ** _decimals,
+            _tokenDetails,
+            _polymathRegistry,
+            stDelegate
+        );
+        //NB When dataStore is generated, the security token address is automatically set via the constructor in DataStoreProxy.
+        newSecurityToken.changeDataStore(dataStoreFactory.generateDataStore(address(newSecurityToken)));
+        newSecurityToken.addModule(transferManagerFactory, "", 0, 0);
+        newSecurityToken.transferOwnership(_issuer);
+        return address(newSecurityToken);
+    }
+}

contracts/mocks/SecurityTokenMock.sol

@@ -0,0 +1,43 @@
+pragma solidity ^0.5.0;
+
+import "../tokens/SecurityToken.sol";
+
+/**
+ * @title Security Token contract
+ * @notice SecurityToken is an ERC1400 token with added capabilities:
+ * @notice - Implements the ERC1400 Interface
+ * @notice - Transfers are restricted
+ * @notice - Modules can be attached to it to control its behaviour
+ * @notice - ST should not be deployed directly, but rather the SecurityTokenRegistry should be used
+ * @notice - ST does not inherit from ISecurityToken due to:
+ * @notice - https://github.com/ethereum/solidity/issues/4847
+ */
+contract SecurityTokenMock is SecurityToken {
+
+    /**
+     * @notice constructor 
+     * @param _name Name of the SecurityToken
+     * @param _symbol Symbol of the Token
+     * @param _decimals Decimals for the securityToken
+     * @param _granularity granular level of the token
+     * @param _tokenDetails Details of the token that are stored off-chain
+     * @param _polymathRegistry Contract address of the polymath registry
+     * @param _delegate Contract address of the delegate
+     */
+    constructor(
+        string memory _name,
+        string memory _symbol,
+        uint8 _decimals,
+        uint256 _granularity,
+        string memory _tokenDetails,
+        address _polymathRegistry,
+        address _delegate
+    ) 
+        public
+        SecurityToken(_name, _symbol, _decimals, _granularity, _tokenDetails, _polymathRegistry,_delegate)
+    {
+        securityTokenVersion = SemanticVersion(2, 2, 0);
+    }
+
+
+}

contracts/tokens/SecurityToken.sol

@@ -16,7 +16,6 @@ import "../interfaces/ITransferManager.sol";
 import "openzeppelin-solidity/contracts/ownership/Ownable.sol";
 import "openzeppelin-solidity/contracts/utils/ReentrancyGuard.sol";
 import "openzeppelin-solidity/contracts/token/ERC20/ERC20.sol";
-import "openzeppelin-solidity/contracts/utils/ReentrancyGuard.sol";
 import "openzeppelin-solidity/contracts/token/ERC20/ERC20Detailed.sol";
 
 /**
@@ -144,7 +143,7 @@ contract SecurityToken is ERC20, ERC20Detailed, Ownable, ReentrancyGuard, Securi
         delegate = _delegate;
         tokenDetails = _tokenDetails;
         granularity = _granularity;
-        securityTokenVersion = SemanticVersion(2, 0, 0);
+        securityTokenVersion = SemanticVersion(3, 0, 0);
     }
 
     /**

test/b_capped_sto.js

@@ -174,7 +174,7 @@ contract("CappedSTO", async (accounts) => {
         it("Should generate the new security token with the same symbol as registered above", async () => {
             await I_PolyToken.approve(I_STRProxied.address, initRegFee, { from: token_owner });
 
-            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, { from: token_owner });
+            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, 0, { from: token_owner });
 
             // Verify the successful generation of the security token
             assert.equal(tx.logs[2].args._ticker, symbol, "SecurityToken doesn't get deployed");
@@ -622,7 +622,7 @@ contract("CappedSTO", async (accounts) => {
             it("POLY: Should generate the new security token with the same symbol as registered above", async () => {
                 await I_PolyToken.approve(I_STRProxied.address, initRegFee, { from: token_owner });
 
-                let tx = await I_STRProxied.generateSecurityToken(P_name, P_symbol, P_tokenDetails, false, { from: token_owner });
+                let tx = await I_STRProxied.generateSecurityToken(P_name, P_symbol, P_tokenDetails, false, 0, { from: token_owner });
 
                 // Verify the successful generation of the security token
                 assert.equal(tx.logs[2].args._ticker, P_symbol, "SecurityToken doesn't get deployed");

test/c_checkpoints.js

@@ -126,7 +126,7 @@ contract("Checkpoints", async function(accounts) {
 
         it("Should generate the new security token with the same symbol as registered above", async () => {
             await I_PolyToken.approve(I_STRProxied.address, initRegFee, { from: token_owner });
-            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, { from: token_owner });
+            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, 0, { from: token_owner });
 
             // Verify the successful generation of the security token
             assert.equal(tx.logs[2].args._ticker, symbol.toUpperCase(), "SecurityToken doesn't get deployed");

test/d_count_transfer_manager.js

@@ -143,7 +143,7 @@ contract("CountTransferManager", async (accounts) => {
         it("Should generate the new security token with the same symbol as registered above", async () => {
             await I_PolyToken.approve(I_STRProxied.address, initRegFee, { from: token_owner });
 
-            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, { from: token_owner });
+            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, 0, { from: token_owner });
             // Verify the successful generation of the security token
             assert.equal(tx.logs[2].args._ticker, symbol.toUpperCase(), "SecurityToken doesn't get deployed");
 
@@ -363,7 +363,7 @@ contract("CountTransferManager", async (accounts) => {
 
                 await I_PolyToken.approve(I_STRProxied.address, initRegFee, { from: token_owner });
 
-                let tx2 = await I_STRProxied.generateSecurityToken(name, symbol2, tokenDetails, false, { from: token_owner });
+                let tx2 = await I_STRProxied.generateSecurityToken(name, symbol2, tokenDetails, false, 0, { from: token_owner });
 
                 I_SecurityToken2 = await SecurityToken.at(tx2.logs[2].args._securityTokenAddress);
                 stGetter2 = await STGetter.at(I_SecurityToken2.address);

test/e_erc20_dividends.js

@@ -151,7 +151,7 @@ contract("ERC20DividendCheckpoint", async (accounts) => {
         it("Should generate the new security token with the same symbol as registered above", async () => {
             await I_PolyToken.approve(I_STRProxied.address, initRegFee, { from: token_owner });
 
-            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, { from: token_owner });
+            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, 0, { from: token_owner });
 
             // Verify the successful generation of the security token
             assert.equal(tx.logs[2].args._ticker, symbol.toUpperCase(), "SecurityToken doesn't get deployed");

test/f_ether_dividends.js

@@ -144,7 +144,7 @@ contract("EtherDividendCheckpoint", async (accounts) => {
         it("Should generate the new security token with the same symbol as registered above", async () => {
             await I_PolyToken.approve(I_STRProxied.address, initRegFee, { from: token_owner });
 
-            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, { from: token_owner });
+            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, 0, { from: token_owner });
 
             // Verify the successful generation of the security token
             assert.equal(tx.logs[2].args._ticker, symbol.toUpperCase(), "SecurityToken doesn't get deployed");

test/g_general_permission_manager.js

@@ -142,7 +142,7 @@ contract("GeneralPermissionManager", async (accounts) => {
         it("Should generate the new security token with the same symbol as registered above", async () => {
             await I_PolyToken.approve(I_STRProxied.address, initRegFee, { from: token_owner });
 
-            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, { from: token_owner });
+            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, 0, { from: token_owner });
 
             // Verify the successful generation of the security token
             assert.equal(tx.logs[2].args._ticker, symbol.toUpperCase(), "SecurityToken doesn't get deployed");
@@ -329,7 +329,7 @@ contract("GeneralPermissionManager", async (accounts) => {
 
             await I_PolyToken.approve(I_STRProxied.address, initRegFee, { from: token_owner });
             let _blockNo = latestBlock();
-            let tx2 = await I_STRProxied.generateSecurityToken(name, "DEL", tokenDetails, false, { from: token_owner });
+            let tx2 = await I_STRProxied.generateSecurityToken(name, "DEL", tokenDetails, false, 0, { from: token_owner });
 
             // Verify the successful generation of the security token
             assert.equal(tx2.logs[2].args._ticker, "DEL", "SecurityToken doesn't get deployed");

test/h_general_transfer_manager.js

@@ -172,7 +172,7 @@ contract("GeneralTransferManager", async (accounts) => {
         it("Should generate the new security token with the same symbol as registered above", async () => {
             await I_PolyToken.approve(I_STRProxied.address, initRegFee, { from: token_owner });
 
-            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, { from: token_owner });
+            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, 0, { from: token_owner });
             // Verify the successful generation of the security token
             assert.equal(tx.logs[2].args._ticker, symbol.toUpperCase(), "SecurityToken doesn't get deployed");
 

test/i_Issuance.js

@@ -155,7 +155,7 @@ contract("Issuance", async (accounts) => {
             it("POLYMATH: Should generate the new security token with the same symbol as registered above", async () => {
                 await I_PolyToken.approve(I_STRProxied.address, initRegFee, { from: account_polymath });
 
-                let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, { from: account_polymath });
+                let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, 0, { from: account_polymath });
 
                 // Verify the successful generation of the security token
                 assert.equal(tx.logs[2].args._ticker, symbol, "SecurityToken doesn't get deployed");

test/j_manual_approval_transfer_manager.js

@@ -152,7 +152,7 @@ contract("ManualApprovalTransferManager", accounts => {
         it("Should generate the new security token with the same symbol as registered above", async () => {
             await I_PolyToken.approve(I_STRProxied.address, initRegFee, { from: token_owner });
 
-            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, { from: token_owner });
+            let tx = await I_STRProxied.generateSecurityToken(name, symbol, tokenDetails, false, 0, { from: token_owner });
 
             // Verify the successful generation of the security token
             assert.equal(tx.logs[2].args._ticker, symbol.toUpperCase(), "SecurityToken doesn't get deployed");