@cruxpay/js-sdk/lib/infrastructure/services/gaia-service.js

CruxPay Javascript SDK

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 __read = (this && this.__read) || function (o, n) {
    var m = typeof Symbol === "function" && o[Symbol.iterator];
    if (!m) return o;
    var i = m.call(o), r, ar = [], e;
    try {
        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
    }
    catch (error) { e = { error: error }; }
    finally {
        try {
            if (r && !r.done && (m = i["return"])) m.call(i);
        }
        finally { if (e) throw e.error; }
    }
    return ar;
};
import { decodeToken, publicKeyToAddress, verifyProfileToken, wrapProfileToken } from "blockstack";
import { ErrorHelper, PackageErrorCode } from "../../packages/error";
import { getLogger } from "../../packages/logger";
import { getRandomHexString, sanitizeUrl } from "../../packages/utils";
import { GaiaServiceApiClient } from "./api-clients";
var log = getLogger(__filename);
var GaiaService = /** @class */ (function () {
    function GaiaService(gaiaHub, cacheStorage) {
        var _this = this;
        this.getContentFromGaiaHub = function (address, filename) { return __awaiter(_this, void 0, void 0, function () {
            var hubInfo, readURL;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, GaiaServiceApiClient.getHubInfo(this.gaiaHub, this.cacheStorage)];
                    case 1:
                        hubInfo = _a.sent();
                        readURL = sanitizeUrl(hubInfo.read_url_prefix);
                        return [2 /*return*/, GaiaService.getContentFromGaiaHub(readURL, address, filename, this.cacheStorage)];
                }
            });
        }); };
        this.uploadContentToGaiaHub = function (filename, content, keyManager, type) {
            if (type === void 0) { type = "application/json"; }
            return __awaiter(_this, void 0, void 0, function () {
                var hubConfigPromise, tokenFilePromise, _a, hubConfig, tokenFile, contentToUpload, response;
                return __generator(this, function (_b) {
                    switch (_b.label) {
                        case 0:
                            hubConfigPromise = this.connectToGaiaHubAsync(keyManager);
                            tokenFilePromise = this.generateContentTokenFileAsync(content, keyManager);
                            return [4 /*yield*/, Promise.all([hubConfigPromise, tokenFilePromise])];
                        case 1:
                            _a = __read.apply(void 0, [_b.sent(), 2]), hubConfig = _a[0], tokenFile = _a[1];
                            contentToUpload = JSON.stringify(tokenFile);
                            return [4 /*yield*/, GaiaServiceApiClient.store(this.gaiaHub, filename, hubConfig.address, hubConfig.token, contentToUpload, type)];
                        case 2:
                            response = _b.sent();
                            return [2 /*return*/, response.publicURL];
                    }
                });
            });
        };
        this.connectToGaiaHubAsync = function (keyManager, associationToken) { return __awaiter(_this, void 0, void 0, function () {
            var hubInfo, readURL, token, address, _a;
            return __generator(this, function (_b) {
                switch (_b.label) {
                    case 0:
                        log.debug("connectToGaiaHub: " + this.gaiaHub + "/hub_info");
                        return [4 /*yield*/, GaiaServiceApiClient.getHubInfo(this.gaiaHub, this.cacheStorage)];
                    case 1:
                        hubInfo = _b.sent();
                        readURL = sanitizeUrl(hubInfo.read_url_prefix);
                        return [4 /*yield*/, this.makeV1GaiaAuthTokenAsync(hubInfo, keyManager, associationToken)];
                    case 2:
                        token = _b.sent();
                        _a = publicKeyToAddress;
                        return [4 /*yield*/, keyManager.getPubKey()];
                    case 3:
                        address = _a.apply(void 0, [_b.sent()]);
                        return [2 /*return*/, {
                                address: address,
                                server: this.gaiaHub,
                                token: token,
                                url_prefix: readURL,
                            }];
                }
            });
        }); };
        this.makeV1GaiaAuthTokenAsync = function (hubInfo, keyManager, associationToken) { return __awaiter(_this, void 0, void 0, function () {
            var challengeText, handlesV1Auth, iss, salt, exp, payload, token;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        challengeText = hubInfo.challenge_text;
                        handlesV1Auth = (hubInfo.latest_auth_version && parseInt(hubInfo.latest_auth_version.slice(1), 10) >= 1);
                        return [4 /*yield*/, keyManager.getPubKey()];
                    case 1:
                        iss = _a.sent();
                        if (!handlesV1Auth) {
                            // TODO: return this._makeLegacyAuthToken(challengeText, keyManager);
                        }
                        salt = getRandomHexString(16).toLocaleLowerCase();
                        exp = (Date.now() / 1000) + 300;
                        payload = {
                            associationToken: associationToken,
                            exp: exp,
                            gaiaChallenge: challengeText,
                            hubUrl: this.gaiaHub,
                            iss: iss,
                            salt: salt,
                        };
                        return [4 /*yield*/, keyManager.signWebToken(payload)];
                    case 2:
                        token = _a.sent();
                        return [2 /*return*/, "v1:" + token];
                }
            });
        }); };
        this.generateContentTokenFileAsync = function (content, keyManager) { return __awaiter(_this, void 0, void 0, function () {
            var publicKey, payload, token;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, keyManager.getPubKey()];
                    case 1:
                        publicKey = _a.sent();
                        payload = {
                            claim: content,
                            issuer: { publicKey: publicKey },
                            subject: { publicKey: publicKey },
                        };
                        return [4 /*yield*/, keyManager.signWebToken(payload)];
                    case 2:
                        token = _a.sent();
                        return [2 /*return*/, [wrapProfileToken(token)]];
                }
            });
        }); };
        this.cacheStorage = cacheStorage;
        this.gaiaHub = gaiaHub;
    }
    GaiaService.getGaiaReadUrl = function (gaiaHub, cacheStorage) { return __awaiter(void 0, void 0, void 0, function () {
        var hubInfo;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0: return [4 /*yield*/, GaiaServiceApiClient.getHubInfo(gaiaHub, cacheStorage)];
                case 1:
                    hubInfo = _a.sent();
                    return [2 /*return*/, hubInfo.read_url_prefix];
            }
        });
    }); };
    GaiaService.getContentFromGaiaHub = function (readUrlPrefix, address, filename, cacheStorage) { return __awaiter(void 0, void 0, void 0, function () {
        var responseBody, decodedToken, pubKey, addressFromPub;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0: return [4 /*yield*/, GaiaServiceApiClient.retrieve(readUrlPrefix, filename, address, cacheStorage)];
                case 1:
                    responseBody = _a.sent();
                    if (responseBody.indexOf("BlobNotFound") > 0 || responseBody.indexOf("NoSuchKey") > 0) {
                        throw ErrorHelper.getPackageError(null, PackageErrorCode.GaiaEmptyResponse);
                    }
                    decodedToken = decodeToken(responseBody[0].token);
                    pubKey = decodedToken.payload.subject.publicKey;
                    addressFromPub = publicKeyToAddress(pubKey);
                    // validate the file integrity with the token signature
                    try {
                        verifyProfileToken(responseBody[0].token, pubKey);
                    }
                    catch (e) {
                        // TODO: validate the token properly after publishing the subject
                        log.error(e);
                        throw ErrorHelper.getPackageError(e, PackageErrorCode.GaiaRecordIntegrityFailed, filename, address);
                    }
                    if (addressFromPub !== address) {
                        throw ErrorHelper.getPackageError(null, PackageErrorCode.GaiaRecordIntegrityFailed, filename, address);
                    }
                    return [2 /*return*/, decodedToken];
            }
        });
    }); };
    return GaiaService;
}());
export { GaiaService };