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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@celo/contractkit/lib/identity

Просмотр файла: metadata.js

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.IdentityMetadataWrapper = exports.IdentityMetadataType = exports.ClaimTypes = void 0;
var address_1 = require("@celo/base/lib/address");
var async_1 = require("@celo/base/lib/async");
var io_1 = require("@celo/utils/lib/io");
var signatureUtils_1 = require("@celo/utils/lib/signatureUtils");
var cross_fetch_1 = __importDefault(require("cross-fetch"));
var Either_1 = require("fp-ts/lib/Either");
var t = __importStar(require("io-ts"));
var PathReporter_1 = require("io-ts/lib/PathReporter");
var Accounts_1 = require("../wrappers/Accounts");
var claim_1 = require("./claims/claim");
var types_1 = require("./claims/types");
var types_2 = require("./claims/types");
Object.defineProperty(exports, "ClaimTypes", { enumerable: true, get: function () { return types_2.ClaimTypes; } });
var MetaType = t.type({
    address: io_1.AddressType,
    signature: io_1.SignatureType,
});
exports.IdentityMetadataType = t.type({
    claims: t.array(claim_1.ClaimType),
    meta: MetaType,
});
var IdentityMetadataWrapper = /** @class */ (function () {
    function IdentityMetadataWrapper(data) {
        this.data = data;
    }
    IdentityMetadataWrapper.fromEmpty = function (address) {
        return new IdentityMetadataWrapper({
            claims: [],
            meta: {
                address: address,
                signature: '',
            },
        });
    };
    IdentityMetadataWrapper.fetchFromURL = function (contractKitOrAccountsWrapper, url, tries) {
        if (tries === void 0) { tries = 3; }
        return __awaiter(this, void 0, void 0, function () {
            var _this = this;
            return __generator(this, function (_a) {
                return [2 /*return*/, (0, async_1.selectiveRetryAsyncWithBackOff)(function () { return __awaiter(_this, void 0, void 0, function () {
                        var resp, _a, _b;
                        return __generator(this, function (_c) {
                            switch (_c.label) {
                                case 0: return [4 /*yield*/, (0, cross_fetch_1.default)(url)];
                                case 1:
                                    resp = _c.sent();
                                    if (!resp.ok) {
                                        throw new Error("Request failed with status ".concat(resp.status));
                                    }
                                    _a = this.fromRawString;
                                    _b = [contractKitOrAccountsWrapper];
                                    return [4 /*yield*/, resp.text()];
                                case 2: return [2 /*return*/, _a.apply(this, _b.concat([_c.sent()]))];
                            }
                        });
                    }); }, tries, ['Request failed with status 404'], [])];
            });
        });
    };
    IdentityMetadataWrapper.fromFile = function (contractKitOrAccountsWrapper, path) {
        var readFileSync;
        try {
            var fs = require('fs');
            readFileSync = fs.readFileSync;
        }
        catch (_a) {
            console.error('cant read from file in browser or environment without native fs module');
        }
        return this.fromRawString(contractKitOrAccountsWrapper, readFileSync(path, 'utf-8'));
    };
    IdentityMetadataWrapper.verifySigner = function (contractKitOrAccountsWrapper, hash, signature, metadata) {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                return [2 /*return*/, this.verifySignerForAddress(contractKitOrAccountsWrapper, hash, signature, metadata.address)];
            });
        });
    };
    IdentityMetadataWrapper.verifySignerForAddress = function (contractKitOrAccountsWrapper, hash, signature, address) {
        return __awaiter(this, void 0, void 0, function () {
            var accounts, signers;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        if (!!(0, signatureUtils_1.verifySignature)(hash, signature, address)) return [3 /*break*/, 5];
                        return [4 /*yield*/, getAccounts(contractKitOrAccountsWrapper)
                            // If this fails, signature may still be one of `address`' signers
                        ];
                    case 1:
                        accounts = _a.sent();
                        return [4 /*yield*/, accounts.isAccount(address)];
                    case 2:
                        if (!_a.sent()) return [3 /*break*/, 4];
                        return [4 /*yield*/, Promise.all([
                                accounts.getVoteSigner(address),
                                accounts.getValidatorSigner(address),
                                accounts.getAttestationSigner(address),
                            ])];
                    case 3:
                        signers = _a.sent();
                        return [2 /*return*/, signers.some(function (signer) { return (0, signatureUtils_1.verifySignature)(hash, signature, signer); })];
                    case 4: return [2 /*return*/, false];
                    case 5: return [2 /*return*/, true];
                }
            });
        });
    };
    IdentityMetadataWrapper.fromRawString = function (contractKitOrAccountsWrapper, rawData) {
        return __awaiter(this, void 0, void 0, function () {
            var data, validatedData, claims, hash, _a, res;
            return __generator(this, function (_b) {
                switch (_b.label) {
                    case 0:
                        data = JSON.parse(rawData);
                        validatedData = exports.IdentityMetadataType.decode(data);
                        if ((0, Either_1.isLeft)(validatedData)) {
                            // TODO: We could probably return a more useful error in the future
                            throw new Error(PathReporter_1.PathReporter.report(validatedData).join(', '));
                        }
                        claims = validatedData.right.claims;
                        hash = (0, claim_1.hashOfClaims)(claims);
                        _a = claims.length > 0;
                        if (!_a) return [3 /*break*/, 2];
                        return [4 /*yield*/, this.verifySigner(contractKitOrAccountsWrapper, hash, validatedData.right.meta.signature, validatedData.right.meta)];
                    case 1:
                        _a = !(_b.sent());
                        _b.label = 2;
                    case 2:
                        if (_a) {
                            throw new Error("Signature could not be validated. Guessing signer: ".concat((0, signatureUtils_1.guessSigner)(hash, validatedData.right.meta.signature)));
                        }
                        res = new IdentityMetadataWrapper(validatedData.right);
                        // Verify that singular claim types appear at most once
                        types_1.SINGULAR_CLAIM_TYPES.forEach(function (claimType) {
                            var results = res.filterClaims(claimType);
                            if (results.length > 1) {
                                throw new Error("Found ".concat(results.length, " claims of type ").concat(claimType, ", should be at most 1"));
                            }
                        });
                        return [2 /*return*/, res];
                }
            });
        });
    };
    Object.defineProperty(IdentityMetadataWrapper.prototype, "claims", {
        get: function () {
            return this.data.claims;
        },
        enumerable: false,
        configurable: true
    });
    IdentityMetadataWrapper.prototype.hashOfClaims = function () {
        return (0, claim_1.hashOfClaims)(this.data.claims);
    };
    IdentityMetadataWrapper.prototype.toString = function () {
        return JSON.stringify({
            claims: this.data.claims,
            meta: this.data.meta,
        });
    };
    IdentityMetadataWrapper.prototype.addClaim = function (claim, signer) {
        return __awaiter(this, void 0, void 0, function () {
            var existingClaims, existingClaims, index, _a;
            return __generator(this, function (_b) {
                switch (_b.label) {
                    case 0:
                        switch (claim.type) {
                            case types_1.ClaimTypes.ACCOUNT:
                                if ((0, address_1.eqAddress)(claim.address, this.data.meta.address)) {
                                    throw new Error("Can't claim self");
                                }
                                break;
                            case types_1.ClaimTypes.DOMAIN: {
                                existingClaims = this.data.claims.filter(function (el) { return el.domain === claim.domain; });
                                if (existingClaims.length > 0) {
                                    return [2 /*return*/, existingClaims[0]];
                                }
                                break;
                            }
                            case types_1.ClaimTypes.KEYBASE: {
                                existingClaims = this.data.claims.filter(function (el) { return el.username === claim.username; });
                                if (existingClaims.length > 0) {
                                    return [2 /*return*/, existingClaims[0]];
                                }
                            }
                            default:
                                break;
                        }
                        if (types_1.SINGULAR_CLAIM_TYPES.includes(claim.type)) {
                            index = this.data.claims.findIndex((0, claim_1.isOfType)(claim.type));
                            if (index !== -1) {
                                this.data.claims.splice(index, 1);
                            }
                        }
                        this.data.claims.push(claim);
                        _a = this.data.meta;
                        return [4 /*yield*/, signer.sign(this.hashOfClaims())];
                    case 1:
                        _a.signature = _b.sent();
                        return [2 /*return*/, claim];
                }
            });
        });
    };
    IdentityMetadataWrapper.prototype.findClaim = function (type) {
        return this.data.claims.find((0, claim_1.isOfType)(type));
    };
    IdentityMetadataWrapper.prototype.filterClaims = function (type) {
        return this.data.claims.filter((0, claim_1.isOfType)(type));
    };
    return IdentityMetadataWrapper;
}());
exports.IdentityMetadataWrapper = IdentityMetadataWrapper;
// at first these functions required a `kit` but thats a bit heavy
// as all that is used is the Accounts Wrapper so allow either.
function getAccounts(contractKitOrAccountsWrapper) {
    return __awaiter(this, void 0, void 0, function () {
        return __generator(this, function (_a) {
            if (contractKitOrAccountsWrapper instanceof Accounts_1.AccountsWrapper) {
                return [2 /*return*/, contractKitOrAccountsWrapper];
            }
            else {
                return [2 /*return*/, contractKitOrAccountsWrapper.contracts.getAccounts()];
            }
            return [2 /*return*/];
        });
    });
}
//# sourceMappingURL=metadata.js.map

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