{ "contractName": "HandlerHelpers", "abi": [ { "inputs": [ { "internalType": "address", "name": "bridgeAddress", "type": "address" } ], "stateMutability": "nonpayable", "type": "constructor" }, { "inputs": [], "name": "_bridgeAddress", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" } ], "name": "_burnList", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" } ], "name": "_contractWhitelist", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "name": "_resourceIDToTokenContractAddress", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "", "type": "address" } ], "name": "_tokenContractAddressToResourceID", "outputs": [ { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "bytes32", "name": "resourceID", "type": "bytes32" }, { "internalType": "address", "name": "contractAddress", "type": "address" } ], "name": "setResource", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "contractAddress", "type": "address" } ], "name": "setBurnable", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "bytes", "name": "data", "type": "bytes" } ], "name": "withdraw", "outputs": [], "stateMutability": "nonpayable", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.6.12+commit.27d51765\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[{\"internalType\":\"address\",\"name\":\"bridgeAddress\",\"type\":\"address\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"inputs\":[],\"name\":\"_bridgeAddress\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"_burnList\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"_contractWhitelist\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"name\":\"_resourceIDToTokenContractAddress\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"name\":\"_tokenContractAddressToResourceID\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"}],\"name\":\"setBurnable\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes32\",\"name\":\"resourceID\",\"type\":\"bytes32\"},{\"internalType\":\"address\",\"name\":\"contractAddress\",\"type\":\"address\"}],\"name\":\"setResource\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes\",\"name\":\"data\",\"type\":\"bytes\"}],\"name\":\"withdraw\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"author\":\"ChainSafe Systems.\",\"kind\":\"dev\",\"methods\":{\"constructor\":{\"params\":{\"bridgeAddress\":\"Contract address of previously deployed Bridge.\"}},\"setBurnable(address)\":{\"params\":{\"contractAddress\":\"Address of contract to be used when making or executing deposits.\"}},\"setResource(bytes32,address)\":{\"params\":{\"contractAddress\":\"Address of contract to be called when a deposit is made and a deposited is executed.\",\"resourceID\":\"ResourceID to be used when making deposits.\"}},\"withdraw(bytes)\":{\"params\":{\"data\":\"ABI-encoded withdrawal params relevant to the handler.\"}}},\"title\":\"Function used across handler contracts.\",\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{\"setBurnable(address)\":{\"notice\":\"First verifies {contractAddress} is whitelisted, then sets {_burnList}[{contractAddress}] to true.\"},\"setResource(bytes32,address)\":{\"notice\":\"First verifies {_resourceIDToContractAddress}[{resourceID}] and {_contractAddressToResourceID}[{contractAddress}] are not already set, then sets {_resourceIDToContractAddress} with {contractAddress}, {_contractAddressToResourceID} with {resourceID}, and {_contractWhitelist} to true for {contractAddress}.\"},\"withdraw(bytes)\":{\"notice\":\"Withdraw funds from ERC safes.\"}},\"notice\":\"This contract is intended to be used with the Bridge contract.\",\"version\":1}},\"settings\":{\"compilationTarget\":{\"project:/contracts/handlers/HandlerHelpers.sol\":\"HandlerHelpers\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"project:/contracts/handlers/HandlerHelpers.sol\":{\"keccak256\":\"0x9418d0646c373e028595a4a3abf5ac93948ea64efa031f1531c70a0500882d09\",\"license\":\"LGPL-3.0-only\",\"urls\":[\"bzz-raw://43e30989056cc8c5f0d2a26cb3a7e8a5d0d51dd2c832fb8d751c353226254871\",\"dweb:/ipfs/QmRpXPeLz7Qjh5qxMW4PyC8qkjrpEJCeCiqfobZyg28y6S\"]},\"project:/contracts/interfaces/IERCHandler.sol\":{\"keccak256\":\"0x4384276611a789db6481e1158d92c280fe5990ec0c375df30dd5e8f8a97cbb4c\",\"license\":\"LGPL-3.0-only\",\"urls\":[\"bzz-raw://3af488536c6d8f6b3090ca9b5fa54718941604a30f58bd66db641a6599a9f296\",\"dweb:/ipfs/QmSm988tQV4XtkCQpTbf2SbdCHp8AcjYZhQLhftPFXrUf2\"]}},\"version\":1}", "bytecode": 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"source": "// SPDX-License-Identifier: LGPL-3.0-only\npragma solidity 0.6.12;\n\nimport \"../interfaces/IERCHandler.sol\";\n\n/**\n @title Function used across handler contracts.\n @author ChainSafe Systems.\n @notice This contract is intended to be used with the Bridge contract.\n */\ncontract HandlerHelpers is IERCHandler {\n address public immutable _bridgeAddress;\n\n // resourceID => token contract address\n mapping (bytes32 => address) public _resourceIDToTokenContractAddress;\n\n // token contract address => resourceID\n mapping (address => bytes32) public _tokenContractAddressToResourceID;\n\n // token contract address => is whitelisted\n mapping (address => bool) public _contractWhitelist;\n\n // token contract address => is burnable\n mapping (address => bool) public _burnList;\n\n modifier onlyBridge() {\n _onlyBridge();\n _;\n }\n \n /**\n @param bridgeAddress Contract address of previously deployed Bridge.\n */\n constructor(\n address bridgeAddress\n ) public {\n _bridgeAddress = bridgeAddress;\n }\n\n function _onlyBridge() private view {\n require(msg.sender == _bridgeAddress, \"sender must be bridge contract\");\n }\n\n /**\n @notice First verifies {_resourceIDToContractAddress}[{resourceID}] and\n {_contractAddressToResourceID}[{contractAddress}] are not already set,\n then sets {_resourceIDToContractAddress} with {contractAddress},\n {_contractAddressToResourceID} with {resourceID},\n and {_contractWhitelist} to true for {contractAddress}.\n @param resourceID ResourceID to be used when making deposits.\n @param contractAddress Address of contract to be called when a deposit is made and a deposited is executed.\n */\n function setResource(bytes32 resourceID, address contractAddress) external override onlyBridge {\n\n _setResource(resourceID, contractAddress);\n }\n\n /**\n @notice First verifies {contractAddress} is whitelisted, then sets {_burnList}[{contractAddress}]\n to true.\n @param contractAddress Address of contract to be used when making or executing deposits.\n */\n function setBurnable(address contractAddress) external override onlyBridge{\n _setBurnable(contractAddress);\n }\n\n function withdraw(bytes memory data) external virtual override {}\n\n function _setResource(bytes32 resourceID, address contractAddress) internal {\n _resourceIDToTokenContractAddress[resourceID] = contractAddress;\n _tokenContractAddressToResourceID[contractAddress] = resourceID;\n\n _contractWhitelist[contractAddress] = true;\n }\n\n function _setBurnable(address contractAddress) internal {\n require(_contractWhitelist[contractAddress], \"provided contract is not whitelisted\");\n _burnList[contractAddress] = true;\n }\n}\n", "sourcePath": "/home/sigo/w/deer/ethsub/packages/sol/contracts/handlers/HandlerHelpers.sol", "ast": { "absolutePath": "project:/contracts/handlers/HandlerHelpers.sol", "exportedSymbols": { "HandlerHelpers": [ 9782 ] }, "id": 9783, "license": "LGPL-3.0-only", "nodeType": "SourceUnit", "nodes": [ { "id": 9646, "literals": [ "solidity", "0.6", ".12" ], "nodeType": "PragmaDirective", "src": "42:23:48" }, { "absolutePath": "project:/contracts/interfaces/IERCHandler.sol", "file": "../interfaces/IERCHandler.sol", "id": 9647, "nodeType": "ImportDirective", "scope": 9783, "sourceUnit": 9841, "src": "67:39:48", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 9649, "name": "IERCHandler", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 9840, "src": "300:11:48", "typeDescriptions": { "typeIdentifier": "t_contract$_IERCHandler_$9840", "typeString": "contract IERCHandler" } }, "id": 9650, "nodeType": "InheritanceSpecifier", "src": "300:11:48" } ], "contractDependencies": [ 9840 ], "contractKind": "contract", "documentation": { "id": 9648, "nodeType": "StructuredDocumentation", "src": "108:164:48", "text": "@title Function used across handler contracts.\n@author ChainSafe Systems.\n@notice This contract is intended to be used with the Bridge contract." }, "fullyImplemented": true, "id": 9782, "linearizedBaseContracts": [ 9782, 9840 ], "name": "HandlerHelpers", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "functionSelector": "318c136e", "id": 9652, "mutability": "immutable", "name": "_bridgeAddress", "nodeType": "VariableDeclaration", "overrides": null, "scope": 9782, "src": "318:39:48", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9651, "name": "address", "nodeType": "ElementaryTypeName", "src": "318:7:48", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "public" }, { "constant": false, "functionSelector": "0a6d55d8", "id": 9656, "mutability": "mutable", "name": "_resourceIDToTokenContractAddress", "nodeType": "VariableDeclaration", "overrides": null, "scope": 9782, "src": "408:69:48", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_address_$", "typeString": "mapping(bytes32 => address)" }, "typeName": { "id": 9655, "keyType": { "id": 9653, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "417:7:48", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Mapping", "src": "408:28:48", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_address_$", "typeString": "mapping(bytes32 => address)" }, "valueType": { "id": 9654, "name": "address", "nodeType": "ElementaryTypeName", "src": "428:7:48", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } }, "value": null, "visibility": "public" }, { "constant": false, "functionSelector": "c8ba6c87", "id": 9660, "mutability": "mutable", "name": "_tokenContractAddressToResourceID", "nodeType": "VariableDeclaration", "overrides": null, "scope": 9782, "src": "528:69:48", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bytes32_$", "typeString": "mapping(address => bytes32)" }, "typeName": { "id": 9659, "keyType": { "id": 9657, "name": "address", "nodeType": "ElementaryTypeName", "src": "537:7:48", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Mapping", "src": "528:28:48", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_address_$_t_bytes32_$", "typeString": "mapping(address => bytes32)" }, "valueType": { "id": 9658, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "548:7:48", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } }, "value": null, "visibility": "public" }, { "constant": false, "functionSelector": "7f79bea8", "id": 9664, "mutability": "mutable", "name": "_contractWhitelist", "nodeType": 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"@notice First verifies {_resourceIDToContractAddress}[{resourceID}] and\n{_contractAddressToResourceID}[{contractAddress}] are not already set,\nthen sets {_resourceIDToContractAddress} with {contractAddress},\n{_contractAddressToResourceID} with {resourceID},\nand {_contractWhitelist} to true for {contractAddress}.\n@param resourceID ResourceID to be used when making deposits.\n@param contractAddress Address of contract to be called when a deposit is made and a deposited is executed." }, "functionSelector": "b8fa3736", "id": 9715, "implemented": true, "kind": "function", "modifiers": [ { "arguments": null, "id": 9707, "modifierName": { "argumentTypes": null, "id": 9706, "name": "onlyBridge", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9675, "src": "1858:10:48", "typeDescriptions": { "typeIdentifier": "t_modifier$__$", "typeString": "modifier ()" } }, "nodeType": "ModifierInvocation", "src": "1858:10:48" } ], "name": "setResource", "nodeType": 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"t_address", "typeString": "address" }, "typeName": { "id": 9702, "name": "address", "nodeType": "ElementaryTypeName", "src": "1815:7:48", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "1794:45:48" }, "returnParameters": { "id": 9708, "nodeType": "ParameterList", "parameters": [], "src": "1869:0:48" }, "scope": 9782, "src": "1774:154:48", "stateMutability": "nonpayable", "virtual": false, "visibility": "external" }, { "baseFunctions": [ 9833 ], "body": { "id": 9728, "nodeType": "Block", "src": "2244:46:48", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 9725, "name": "contractAddress", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9718, "src": "2267:15:48", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } } ], "expression": { "argumentTypes": [ { 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