@airgap/coinlib-core
Version:
The @airgap/coinlib-core is a protocol agnostic library to prepare, sign and broadcast cryptocurrency transactions.
139 lines • 6.91 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
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 };
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}
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Sha256RemoteData = void 0;
var index_1 = __importDefault(require("../../dependencies/src/axios-0.19.0/index"));
var sha = require("../../dependencies/src/sha.js-2.4.11/index");
var hex_1 = require("../hex");
var RemoteData_1 = require("./RemoteData");
var SHA256_SCHEME = 'sha256';
function parseUri(uri) {
var _a = uri.replace("".concat(SHA256_SCHEME, "://"), '').split(/\/(.+)/, 2), hash = _a[0], path = _a[1];
return { hash: hash, path: path };
}
var Sha256RemoteData = /** @class */ (function (_super) {
__extends(Sha256RemoteData, _super);
function Sha256RemoteData(uri, hash, path) {
var _this = _super.call(this, uri) || this;
_this.hash = hash;
_this.path = path;
return _this;
}
Sha256RemoteData.from = function (uri) {
if (!Sha256RemoteData.validate(uri)) {
return undefined;
}
var _a = parseUri(uri), hash = _a.hash, path = _a.path;
if (!hash || !path) {
return undefined;
}
return new Sha256RemoteData(uri, Buffer.from((0, hex_1.stripHexPrefix)(hash), 'hex'), decodeURIComponent(path));
};
Sha256RemoteData.validate = function (uri) {
if (!uri.startsWith(SHA256_SCHEME)) {
return false;
}
var _a = parseUri(uri), hash = _a.hash, path = _a.path;
var validHash = !!hash && hash.startsWith('0x');
var validPath = !!path;
return validHash && validPath;
};
Sha256RemoteData.prototype.get = function () {
return __awaiter(this, void 0, void 0, function () {
var data, decoder;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.getRaw()];
case 1:
data = _a.sent();
if (data === undefined) {
return [2 /*return*/, undefined];
}
decoder = new TextDecoder();
return [2 /*return*/, JSON.parse(decoder.decode(data.bytes.buffer))];
}
});
});
};
Sha256RemoteData.prototype.getRaw = function () {
return __awaiter(this, void 0, void 0, function () {
var response, data, hash;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!Sha256RemoteData.validate(this.uri)) {
return [2 /*return*/, undefined];
}
return [4 /*yield*/, index_1.default.get(this.path, { responseType: 'arraybuffer' })];
case 1:
response = _a.sent();
data = response.data;
hash = sha('sha256').update(data).digest();
if (!this.hash.equals(hash)) {
return [2 /*return*/, undefined];
}
return [2 /*return*/, {
bytes: Buffer.from(data),
contentType: response.headers['content-type']
}];
}
});
});
};
return Sha256RemoteData;
}(RemoteData_1.RemoteData));
exports.Sha256RemoteData = Sha256RemoteData;
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