parkingsv-contract
Version:
ParkingSV library
188 lines • 8.11 kB
JavaScript
;
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 };
}
};
var bsv = require("./scryptlib/utils").bsv;
var Signature = bsv.crypto.Signature;
var BN = bsv.crypto.BN;
var Interpreter = bsv.Script.Interpreter;
// number of bytes to denote some numeric value
var DataLen = 1;
var axios = require("axios");
var API_PREFIX = "https://api.whatsonchain.com/v1/bsv/test";
var inputIndex = 0;
var inputSatoshis = 1000000;
var flags = Interpreter.SCRIPT_VERIFY_MINIMALDATA |
Interpreter.SCRIPT_ENABLE_SIGHASH_FORKID |
Interpreter.SCRIPT_ENABLE_MAGNETIC_OPCODES |
Interpreter.SCRIPT_ENABLE_MONOLITH_OPCODES;
var minFee = 546;
var dummyTxId = "a477af6b2667c29670467e4e0728b685ee07b240235771862318e29ddbe58458";
var utxo = {
txId: dummyTxId,
outputIndex: 0,
script: "",
satoshis: inputSatoshis,
};
var tx = new bsv.Transaction().from(utxo);
function createLockingTx(address, amountInContract, fee) {
return __awaiter(this, void 0, void 0, function () {
var utxos, tx;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, axios.get(API_PREFIX + "/address/" + address + "/unspent")];
case 1:
utxos = (_a.sent()).data;
utxos = utxos.map(function (utxo) { return ({
txId: utxo.tx_hash,
outputIndex: utxo.tx_pos,
satoshis: utxo.value,
script: bsv.Script.buildPublicKeyHashOut(address).toHex(),
}); });
tx = new bsv.Transaction().from(utxos);
tx.addOutput(new bsv.Transaction.Output({
script: new bsv.Script(),
satoshis: amountInContract,
}));
tx.change(address).fee(fee || minFee);
return [2 /*return*/, tx];
}
});
});
}
function createUnlockingTx(prevTxId, inputAmount, inputLockingScriptASM, outputAmount, outputLockingScriptASM) {
var tx = new bsv.Transaction();
tx.addInput(new bsv.Transaction.Input({
prevTxId: prevTxId,
outputIndex: inputIndex,
script: new bsv.Script(),
}), bsv.Script.fromASM(inputLockingScriptASM), inputAmount);
tx.addOutput(new bsv.Transaction.Output({
script: bsv.Script.fromASM(outputLockingScriptASM || inputLockingScriptASM),
satoshis: outputAmount,
}));
tx.fee(inputAmount - outputAmount);
return tx;
}
function unlockP2PKHInput(privateKey, tx, inputIndex, sigtype) {
var sig = new bsv.Transaction.Signature({
publicKey: privateKey.publicKey,
prevTxId: tx.inputs[inputIndex].prevTxId,
outputIndex: tx.inputs[inputIndex].outputIndex,
inputIndex: inputIndex,
signature: bsv.Transaction.Sighash.sign(tx, privateKey, sigtype, inputIndex, tx.inputs[inputIndex].output.script, tx.inputs[inputIndex].output.satoshisBN),
sigtype: sigtype,
});
tx.inputs[inputIndex].setScript(bsv.Script.buildPublicKeyHashIn(sig.publicKey, sig.signature.toDER(), sig.sigtype));
}
function sendTx(tx) {
return __awaiter(this, void 0, void 0, function () {
var txid;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, axios.post(API_PREFIX + "/tx/raw", {
txhex: tx.serialize(true),
})];
case 1:
txid = (_a.sent()).data;
return [2 /*return*/, txid];
}
});
});
}
function sendTxHex(txhex) {
return __awaiter(this, void 0, void 0, function () {
var txid, err_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 2, , 3]);
return [4 /*yield*/, axios.post(API_PREFIX + "/tx/raw", {
txhex: txhex,
})];
case 1:
txid = (_a.sent()).data;
return [3 /*break*/, 3];
case 2:
err_1 = _a.sent();
showError(err_1);
return [3 /*break*/, 3];
case 3: return [2 /*return*/, txid];
}
});
});
}
function showError(error) {
// Error
if (error.response) {
// The request was made and the server responded with a status code
// that falls out of the range of 2xx
console.log("Failed - StatusCodeError: " +
error.response.status +
' - "' +
error.response.data +
'"');
// console.log(error.response.headers);
}
else if (error.request) {
// The request was made but no response was received
// `error.request` is an instance of XMLHttpRequest in the
// browser and an instance of
// http.ClientRequest in node.js
console.log(error.request);
}
else {
// Something happened in setting up the request that triggered an Error
console.log("Error:", error.message);
if (error.context) {
console.log(error.context);
}
}
}
module.exports = {
inputIndex: inputIndex,
inputSatoshis: inputSatoshis,
tx: tx,
createLockingTx: createLockingTx,
createUnlockingTx: createUnlockingTx,
DataLen: DataLen,
dummyTxId: dummyTxId,
unlockP2PKHInput: unlockP2PKHInput,
sendTx: sendTx,
sendTxHex: sendTxHex,
showError: showError,
};
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