Add Shell contracts WIP

Author: kronosapiens

.soliumrc.json

@@ -12,6 +12,7 @@
     "error-reason": "error",
     "max-len": "error",
     "no-trailing-whitespace": "error",
-    "blank-lines": "error"
+    "blank-lines": "error",
+    "custom-errors": "off"
   }
 }

contracts/bridging/ColonyShell.sol

@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+/*
+  This file is part of The Colony Network.
+
+  The Colony Network is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  The Colony Network is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with The Colony Network. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+pragma solidity 0.8.25;
+pragma experimental ABIEncoderV2;
+
+import { BasicMetaTransaction } from "./../common/BasicMetaTransaction.sol";
+import { CallWithGuards } from "../common/CallWithGuards.sol";
+import { ERC20Extended } from "./../common/ERC20Extended.sol";
+import { Multicall } from "./../common/Multicall.sol";
+import { IColonyNetwork } from "./../colonyNetwork/IColonyNetwork.sol";
+
+contract ColonyShell is BasicMetaTransaction, Multicall, CallWithGuards {
+  // Address of the Resolver contract used by EtherRouter for lookups and routing
+  address resolver; // Storage slot 2 (from DSAuth there is authority and owner at storage slots 0 and 1 respectively)
+
+  mapping(address => uint256) metatransactionNonces;
+
+  function getMetatransactionNonce(address _user) public view override returns (uint256 _nonce) {
+    return metatransactionNonces[_user];
+  }
+
+  function incrementMetatransactionNonce(address _user) internal override {
+    metatransactionNonces[_user] += 1;
+  }
+
+  // Public functions
+
+  function claimColonyFunds(address _token) public {
+    uint256 tokenBalance = (_token == address(0x0))
+      ? address(this).balance
+      : ERC20Extended(_token).balanceOf(address(this));
+
+    IColonyNetwork(owner).sendClaimColonyFunds(_token, tokenBalance);
+
+    emit ColonyFundsClaimed(_token, tokenBalance);
+  }
+
+  function transfer(address _token, address _user, uint256 _amount) public auth {
+    ERC20Extended(_token).transfer(_user, _amount);
+
+    emit PaymentMade(_token, _user, _amount);
+  }
+}

contracts/colonyNetwork/ColonyNetworkShells.sol

@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+/*
+  This file is part of The Colony Network.
+
+  The Colony Network is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  The Colony Network is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with The Colony Network. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+pragma solidity 0.8.25;
+pragma experimental ABIEncoderV2;
+
+import { ICreateX } from "./../../lib/createx/src/ICreateX.sol";
+import { Multicall } from "../common/Multicall.sol";
+import { CallWithGuards } from "../common/CallWithGuards.sol";
+import { ColonyNetworkStorage } from "./ColonyNetworkStorage.sol";
+
+contract ColonyNetworkShells is ColonyNetworkStorage, Multicall, CallWithGuards {
+  function deployShellColony(bytes32 _salt) public onlyColonyBridge {
+    ICreateX(CREATEX_ADDRESS).deployCreate3AndInit(
+      _salt,
+      type(EtherRouterCreate3).creationCode,
+      abi.encodeWithSignature("setOwner(address)", (address(this))),
+      ICreateX.Values(0, 0)
+    );
+  }
+
+  function sendDeployShellColony(bytes32 _salt) public onlyColony {
+    bytes memory payload = abi.encodeWithSignature(
+      "deployShellColony(bytes32)",
+      _salt
+    );
+
+    require(callThroughBridgeWithGuards(payload), "shell-colony-network-deploy-failed");
+  }
+
+  function sendClaimColonyFunds(address _token, uint256 _balance) public onlyColony {
+    bytes memory payload = abi.encodeWithSignature(
+      "claimColonyFundsFromBridge(address,address,uint256)",
+      msgSender(),
+      _token,
+      _balance
+    );
+
+    require(callThroughBridgeWithGuards(payload), "shell-colony-network-claim-failed");
+  }
+}