@stellar/stellar-sdk
Version:
A library for working with the Stellar network, including communication with the Horizon and Soroban RPC servers.
225 lines (224 loc) • 15 kB
JavaScript
;
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.WasmFetchError = void 0;
exports.fetchFromContractId = fetchFromContractId;
exports.fetchFromWasmHash = fetchFromWasmHash;
var _stellarBase = require("@stellar/stellar-base");
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function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
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function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
function _callSuper(t, o, e) { return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e)); }
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function _wrapNativeSuper(t) { var r = "function" == typeof Map ? new Map() : void 0; return _wrapNativeSuper = function _wrapNativeSuper(t) { if (null === t || !_isNativeFunction(t)) return t; if ("function" != typeof t) throw new TypeError("Super expression must either be null or a function"); if (void 0 !== r) { if (r.has(t)) return r.get(t); r.set(t, Wrapper); } function Wrapper() { return _construct(t, arguments, _getPrototypeOf(this).constructor); } return Wrapper.prototype = Object.create(t.prototype, { constructor: { value: Wrapper, enumerable: !1, writable: !0, configurable: !0 } }), _setPrototypeOf(Wrapper, t); }, _wrapNativeSuper(t); }
function _construct(t, e, r) { if (_isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments); var o = [null]; o.push.apply(o, e); var p = new (t.bind.apply(t, o))(); return r && _setPrototypeOf(p, r.prototype), p; }
function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
function _isNativeFunction(t) { try { return -1 !== Function.toString.call(t).indexOf("[native code]"); } catch (n) { return "function" == typeof t; } }
function _setPrototypeOf(t, e) { return _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function (t, e) { return t.__proto__ = e, t; }, _setPrototypeOf(t, e); }
function _getPrototypeOf(t) { return _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function (t) { return t.__proto__ || Object.getPrototypeOf(t); }, _getPrototypeOf(t); }
var WasmFetchError = exports.WasmFetchError = function (_Error) {
function WasmFetchError(message, cause) {
var _this;
_classCallCheck(this, WasmFetchError);
_this = _callSuper(this, WasmFetchError, [message]);
_this.cause = cause;
_this.name = "WasmFetchError";
return _this;
}
_inherits(WasmFetchError, _Error);
return _createClass(WasmFetchError);
}(_wrapNativeSuper(Error));
function getRemoteWasmFromHash(_x, _x2) {
return _getRemoteWasmFromHash.apply(this, arguments);
}
function _getRemoteWasmFromHash() {
_getRemoteWasmFromHash = _asyncToGenerator(_regenerator().m(function _callee(server, hashBuffer) {
var contractCodeKey, response, entry, contractCode, _t;
return _regenerator().w(function (_context) {
while (1) switch (_context.p = _context.n) {
case 0:
_context.p = 0;
contractCodeKey = _stellarBase.xdr.LedgerKey.contractCode(new _stellarBase.xdr.LedgerKeyContractCode({
hash: _stellarBase.xdr.Hash.fromXDR(hashBuffer, "raw")
}));
_context.n = 1;
return server.getLedgerEntries(contractCodeKey);
case 1:
response = _context.v;
if (!(!response.entries || response.entries.length === 0)) {
_context.n = 2;
break;
}
throw new WasmFetchError("WASM not found for the given hash");
case 2:
entry = response.entries[0];
if (!(entry.key.switch() !== _stellarBase.xdr.LedgerEntryType.contractCode())) {
_context.n = 3;
break;
}
throw new WasmFetchError("Invalid ledger entry type returned");
case 3:
contractCode = entry.val.contractCode();
return _context.a(2, Buffer.from(contractCode.code()));
case 4:
_context.p = 4;
_t = _context.v;
if (!(_t instanceof WasmFetchError)) {
_context.n = 5;
break;
}
throw _t;
case 5:
throw new WasmFetchError("Failed to fetch WASM from hash", _t);
case 6:
return _context.a(2);
}
}, _callee, null, [[0, 4]]);
}));
return _getRemoteWasmFromHash.apply(this, arguments);
}
function isStellarAssetContract(instance) {
return instance.executable().switch() === _stellarBase.xdr.ContractExecutableType.contractExecutableStellarAsset();
}
function fetchWasmFromContract(_x3, _x4) {
return _fetchWasmFromContract.apply(this, arguments);
}
function _fetchWasmFromContract() {
_fetchWasmFromContract = _asyncToGenerator(_regenerator().m(function _callee2(server, contractAddress) {
var contract, response, entry, contractData, instance, wasmHash, wasmBytes, _t2;
return _regenerator().w(function (_context2) {
while (1) switch (_context2.p = _context2.n) {
case 0:
_context2.p = 0;
contract = new _stellarBase.Contract(contractAddress.toString());
_context2.n = 1;
return server.getLedgerEntries(contract.getFootprint());
case 1:
response = _context2.v;
if (!(!response.entries || response.entries.length === 0)) {
_context2.n = 2;
break;
}
throw new WasmFetchError("Contract instance not found");
case 2:
entry = response.entries[0];
if (!(entry.key.switch() !== _stellarBase.xdr.LedgerEntryType.contractData())) {
_context2.n = 3;
break;
}
throw new WasmFetchError("Invalid ledger entry type returned");
case 3:
contractData = entry.val.contractData();
instance = contractData.val().instance();
if (!isStellarAssetContract(instance)) {
_context2.n = 4;
break;
}
return _context2.a(2, {
type: "stellar-asset-contract"
});
case 4:
wasmHash = instance.executable().wasmHash();
_context2.n = 5;
return getRemoteWasmFromHash(server, wasmHash);
case 5:
wasmBytes = _context2.v;
return _context2.a(2, {
type: "wasm",
wasmBytes: wasmBytes
});
case 6:
_context2.p = 6;
_t2 = _context2.v;
if (!(_t2 instanceof WasmFetchError)) {
_context2.n = 7;
break;
}
throw _t2;
case 7:
throw new WasmFetchError("Failed to fetch WASM from contract", _t2);
case 8:
return _context2.a(2);
}
}, _callee2, null, [[0, 6]]);
}));
return _fetchWasmFromContract.apply(this, arguments);
}
function fetchFromWasmHash(_x5, _x6) {
return _fetchFromWasmHash.apply(this, arguments);
}
function _fetchFromWasmHash() {
_fetchFromWasmHash = _asyncToGenerator(_regenerator().m(function _callee3(wasmHash, rpcServer) {
var hashBuffer, wasmBytes, _t3;
return _regenerator().w(function (_context3) {
while (1) switch (_context3.p = _context3.n) {
case 0:
_context3.p = 0;
hashBuffer = Buffer.from(wasmHash, "hex");
if (!(hashBuffer.length !== 32)) {
_context3.n = 1;
break;
}
throw new WasmFetchError("Invalid WASM hash length: expected 32 bytes, got ".concat(hashBuffer.length));
case 1:
_context3.n = 2;
return getRemoteWasmFromHash(rpcServer, hashBuffer);
case 2:
wasmBytes = _context3.v;
return _context3.a(2, {
type: "wasm",
wasmBytes: wasmBytes
});
case 3:
_context3.p = 3;
_t3 = _context3.v;
throw new WasmFetchError("Failed to fetch WASM from hash ".concat(wasmHash), _t3);
case 4:
return _context3.a(2);
}
}, _callee3, null, [[0, 3]]);
}));
return _fetchFromWasmHash.apply(this, arguments);
}
function fetchFromContractId(_x7, _x8) {
return _fetchFromContractId.apply(this, arguments);
}
function _fetchFromContractId() {
_fetchFromContractId = _asyncToGenerator(_regenerator().m(function _callee4(contractId, rpcServer) {
var contractAddress, _t4;
return _regenerator().w(function (_context4) {
while (1) switch (_context4.p = _context4.n) {
case 0:
_context4.p = 0;
if (_stellarBase.StrKey.isValidContract(contractId)) {
_context4.n = 1;
break;
}
throw new WasmFetchError("Invalid contract ID: ".concat(contractId));
case 1:
contractAddress = _stellarBase.Address.fromString(contractId);
_context4.n = 2;
return fetchWasmFromContract(rpcServer, contractAddress);
case 2:
return _context4.a(2, _context4.v);
case 3:
_context4.p = 3;
_t4 = _context4.v;
throw new WasmFetchError("Failed to fetch WASM from contract ".concat(contractId), _t4);
case 4:
return _context4.a(2);
}
}, _callee4, null, [[0, 3]]);
}));
return _fetchFromContractId.apply(this, arguments);
}