cic-client
Version:
Typescript libraries for building CIC client applications
300 lines (299 loc) • 14.6 kB
JavaScript
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.toRegistryKey = exports.toContractKey = exports.CICRegistry = void 0;
var helper_1 = require("./helper");
var LRU = require('lru-cache');
var solidity_1 = require("./solidity");
var const_1 = require("./const");
var crypto_1 = require("./crypto");
var digest_1 = require("./digest");
var KV = /** @class */ (function () {
function KV() {
this.store = {};
}
KV.prototype.put = function (k, v) {
this.store[k] = v;
};
KV.prototype.get = function (k) {
return this.store[k];
};
KV.prototype.peek = function (k) {
return this.store[k];
};
return KV;
}());
var CICRegistry = /** @class */ (function () {
function CICRegistry(w3, address, abiName, fileGetter, paths) {
this.w3 = w3;
this.address = address;
this.abiName = abiName;
this.store = new KV();
this.paths = paths;
this.fileGetter = fileGetter;
this.declaratorHelper = new helper_1.DeclaratorHelper(w3, this);
}
CICRegistry.prototype.load = function () {
return __awaiter(this, void 0, void 0, function () {
var registryAbi, contractIdHex, contractId, confirmedContractAddress;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, solidity_1.abi(this.fileGetter, this.abiName, this.paths)];
case 1:
registryAbi = _a.sent();
this.contract = new this.w3.eth.Contract(registryAbi, this.address);
contractIdHex = this.w3.utils.toHex('ContractRegistry');
contractId = this.w3.eth.abi.encodeParameter('bytes32', contractIdHex);
return [4 /*yield*/, this.contract.methods.addressOf(contractId).call()];
case 2:
confirmedContractAddress = _a.sent();
if (this.address.toLowerCase() != confirmedContractAddress.toLowerCase()) {
throw new Error('cic registry contract entry does not match its own address');
}
if (this.onload !== undefined) {
this.onload(this.address);
}
return [2 /*return*/];
}
});
});
};
CICRegistry.prototype.getAbi = function (abiName) {
return __awaiter(this, void 0, void 0, function () {
var abiObject;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
abiObject = this.store.get(toAbiKey(abiName));
if (!(abiObject === undefined)) return [3 /*break*/, 2];
return [4 /*yield*/, solidity_1.abi(this.fileGetter, abiName, this.paths)];
case 1:
abiObject = _a.sent();
this.store.put(abiName, abiObject);
_a.label = 2;
case 2: return [2 /*return*/, abiObject];
}
});
});
};
CICRegistry.prototype.addToken = function (address, requireTrust) {
if (requireTrust === void 0) { requireTrust = false; }
return __awaiter(this, void 0, void 0, function () {
var erc20Abi, tokenContract, tokenSymbol;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (requireTrust) {
throw new Error('trust check not implemented yet, sorry');
}
return [4 /*yield*/, this.getAbi('ERC20')];
case 1:
erc20Abi = _a.sent();
tokenContract = new this.w3.eth.Contract(erc20Abi, address);
return [4 /*yield*/, tokenContract.methods.symbol().call()];
case 2:
tokenSymbol = _a.sent();
if (tokenSymbol === undefined) {
throw new Error('attempted to add token contract ' + address + ' which is not an ERC20 token');
}
this.store.put(toTokenKey(tokenSymbol), tokenContract);
this.store.put(address, tokenContract);
return [2 /*return*/, tokenContract];
}
});
});
};
CICRegistry.prototype.getContract = function (address) {
return __awaiter(this, void 0, void 0, function () {
var contract;
return __generator(this, function (_a) {
contract = this.store.get(address);
if (contract === undefined) {
throw new Error('unknown contract ' + address);
}
return [2 /*return*/, contract];
});
});
};
CICRegistry.prototype.getToken = function (address) {
return __awaiter(this, void 0, void 0, function () {
var tokenContract, tokenSymbol;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.getContract(address)];
case 1:
tokenContract = _a.sent();
return [4 /*yield*/, tokenContract.methods.symbol().call()];
case 2:
tokenSymbol = _a.sent();
if (tokenSymbol === undefined) {
throw new Error('contract ' + address + ' is not an ERC20 token');
}
return [2 /*return*/, tokenContract];
}
});
});
};
CICRegistry.prototype.getContractByName = function (contractName, abiName, requireInterfaces) {
return __awaiter(this, void 0, void 0, function () {
var contractKey, contract, contractAddress, contractAbi;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
contractKey = toContractKey(contractName);
contract = this.store.get(contractKey);
if (!(contract === undefined)) return [3 /*break*/, 3];
return [4 /*yield*/, this.getContractAddressByName(contractName, abiName, requireInterfaces)];
case 1:
contractAddress = _a.sent();
if (abiName === undefined) {
abiName = contractName;
}
return [4 /*yield*/, this.getAbi(abiName)];
case 2:
contractAbi = _a.sent();
contract = new this.w3.eth.Contract(contractAbi, contractAddress);
this.store.put(contractKey, contract);
this.store.put(contractAddress, contract);
_a.label = 3;
case 3: return [2 /*return*/, contract];
}
});
});
};
CICRegistry.prototype.getContractAddressByName = function (contractName, abiName, requireInterfaces) {
return __awaiter(this, void 0, void 0, function () {
var contract_id_hex, contract_id, contractAddress;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
contract_id_hex = this.w3.utils.toHex(contractName);
contract_id = this.w3.eth.abi.encodeParameter('bytes32', contract_id_hex);
return [4 /*yield*/, this.contract.methods.addressOf(contract_id).call()];
case 1:
contractAddress = _a.sent();
if (contractAddress == const_1.zeroAddress) {
throw new Error('unknown contract ' + contractName + ' (' + contract_id_hex + ')');
}
return [2 /*return*/, contractAddress];
}
});
});
};
CICRegistry.prototype.getFungibleToken = function (tokenAddress, checkInterface) {
if (checkInterface === void 0) { checkInterface = false; }
return __awaiter(this, void 0, void 0, function () {
var tokenAbi, tokenContract, tokenSymbol;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.getAbi('ERC20')];
case 1:
tokenAbi = _a.sent();
tokenContract = new this.w3.eth.Contract(tokenAbi, tokenAddress);
if (checkInterface) {
if (!tokenContract.methods.supportsInterface('ERC20')) {
throw 'token does not declare ERC20 interface support';
}
}
return [4 /*yield*/, tokenContract.methods.symbol().call()];
case 2:
tokenSymbol = _a.sent();
this.store.put(toTokenKey(tokenSymbol), tokenContract);
this.store.put(tokenAddress, tokenContract);
return [2 /*return*/, tokenContract];
}
});
});
};
CICRegistry.prototype.getTokenBySymbol = function (tokenRegistryContractName, symbol, checkInterface) {
if (checkInterface === void 0) { checkInterface = false; }
return __awaiter(this, void 0, void 0, function () {
var token, tokenRegistryContract, symbolId, tokenAddress;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
token = this.store.get(toTokenKey(symbol));
if (token !== undefined) {
return [2 /*return*/, token];
}
return [4 /*yield*/, this.getContractByName(tokenRegistryContractName, 'Registry', [solidity_1.interfaceCodes.Registry])];
case 1:
tokenRegistryContract = _a.sent();
return [4 /*yield*/, toRegistryKey(symbol)];
case 2:
symbolId = _a.sent();
return [4 /*yield*/, tokenRegistryContract.methods.addressOf(symbolId).call()];
case 3:
tokenAddress = _a.sent();
if (tokenAddress === const_1.zeroAddress) {
throw 'unknown token "' + symbol + '" using registry "' + tokenRegistryContractName + '"';
}
token = this.getFungibleToken(tokenAddress, checkInterface);
return [2 /*return*/, token];
}
});
});
};
return CICRegistry;
}());
exports.CICRegistry = CICRegistry;
function toRegistryKey(s) {
return __awaiter(this, void 0, void 0, function () {
var sDigest, sId;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, crypto_1.subtle.digest('SHA-256', s)];
case 1:
sDigest = _a.sent();
sId = '0x' + digest_1.bytesToHex(sDigest);
return [2 /*return*/, sId];
}
});
});
}
exports.toRegistryKey = toRegistryKey;
function toContractKey(s) {
return 'contract:' + s;
}
exports.toContractKey = toContractKey;
function toAbiKey(s) {
return 'abi:' + s;
}
function toTokenKey(s) {
return 'token:' + s;
}