amazon-pay-async
Version:
API wrapper for Amazon Pay using promises and defining types
273 lines (272 loc) • 13.4 kB
JavaScript
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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) : new P(function (resolve) { resolve(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 };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
var crypto = require("crypto");
var request = require("request-promise-native");
var URL = require("url");
var xml2js = require("xml2js");
var config_1 = require("../classes/config");
var error_1 = require("../classes/error");
var response_1 = require("../classes/response");
var helpers_1 = require("../helpers/helpers");
var Amazon = /** @class */ (function () {
function Amazon(config) {
this.config = new config_1.Config(config);
}
Amazon.prototype.callApiMethod = function (action, params, bearer) {
return __awaiter(this, void 0, void 0, function () {
var opts, resultBody, response, err_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
opts = {
method: 'get',
resolveWithFullResponse: false,
url: this.config.environment.apiEndpoint + "/" + action,
};
if (params) {
opts.qs = params;
}
if (bearer) {
opts.headers = {
Authorization: "bearer " + bearer,
};
}
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, request.get(opts)];
case 2:
resultBody = _a.sent();
response = this.parseApiResponse(resultBody);
return [2 /*return*/, response];
case 3:
err_1 = _a.sent();
throw err_1;
case 4: return [2 /*return*/];
}
});
});
};
Amazon.prototype.callMwsMethod = function (method, version, params) {
return __awaiter(this, void 0, void 0, function () {
var url, required, k, opts, result, response, err_2;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 3, , 4]);
url = this.config.environment.mwsEndpoint;
required = {
AWSAccessKeyId: this.config.mwsAccessKey,
Action: method,
SellerId: this.config.sellerId,
Timestamp: new Date().toISOString(),
Version: version,
};
params = helpers_1.composeParams(params || {});
for (k in required) {
if (params && !params.hasOwnProperty(k)) {
params[k] = required[k];
}
}
params = helpers_1.attachSignature(url, this.config.mwsSecretKey, params);
opts = {
form: params,
method: 'post',
resolveWithFullResponse: true,
url: url,
};
return [4 /*yield*/, request.post(opts)];
case 1:
result = _a.sent();
return [4 /*yield*/, this.parseMwsResponse(method, result)];
case 2:
response = _a.sent();
return [2 /*return*/, response];
case 3:
err_2 = _a.sent();
throw err_2;
case 4: return [2 /*return*/];
}
});
});
};
Amazon.prototype.parseSNSResponse = function (response) {
return __awaiter(this, void 0, void 0, function () {
var defaultHostPattern, signable, verifier_1, parsed, opts, res, isValid, err_3;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 3, , 4]);
defaultHostPattern = /^sns\.[a-zA-Z0-9-]{3,}\.amazonaws\.com(\.cn)?$/;
signable = [
'Message',
'MessageId',
'Subject',
'SubscribeURL',
'Timestamp',
'Token',
'TopicArn',
'Type',
];
if (response.SignatureVersion !== '1') {
throw new error_1.InvalidSignatureVersion("Unknown SNS Signature version: " + response.SignatureVersion);
}
verifier_1 = crypto.createVerify('SHA1');
signable.forEach(function (key) {
if (response[key]) {
verifier_1.update(key + "\n" + response[key] + "\n");
}
});
parsed = URL.parse(response.SigningCertURL);
if (parsed.protocol !== 'https:' ||
(parsed.path && parsed.path.substr(-4) !== '.pem') ||
(parsed.host && !defaultHostPattern.test(parsed.host))) {
throw new error_1.InvalidCertificateDomain('The certificate is located on an invalid domain.');
}
opts = {
method: 'get',
resolveWithFullResponse: true,
url: response.SigningCertURL,
};
return [4 /*yield*/, request.get(opts)];
case 1:
res = _a.sent();
isValid = verifier_1.verify(res.body, response.Signature, 'base64');
if (!isValid) {
throw new error_1.SignatureMismatch('Signature mismatch, unverified response');
}
if (response.Type !== 'Notification') {
return [2 /*return*/, response];
}
return [4 /*yield*/, this.parseIPNMessage(response.Message)];
case 2: return [2 /*return*/, _a.sent()];
case 3:
err_3 = _a.sent();
return [2 /*return*/, Promise.reject(err_3)];
case 4: return [2 /*return*/];
}
});
});
};
Amazon.prototype.parseMwsResponse = function (method, response) {
return __awaiter(this, void 0, void 0, function () {
var result;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!((response.headers && response.headers['content-type'] === 'text/xml') || response.error)) return [3 /*break*/, 2];
return [4 /*yield*/, this.parseString(response.body, method)];
case 1:
result = _a.sent();
return [2 /*return*/, result];
case 2: return [2 /*return*/, new response_1.AmazonResponse(method, { Response: response.body }).response];
}
});
});
};
Amazon.prototype.parseIPNMessage = function (message) {
return __awaiter(this, void 0, void 0, function () {
var type, xmlKeys, result, keys, err_4;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
message = helpers_1.safeJSONParse(message);
if (!helpers_1.isObject(message) || !message.NotificationData) {
return [2 /*return*/, message];
}
type = message.NotificationType;
xmlKeys = {
BillingAgreementNotification: ['BillingAgreementNotification', 'BillingAgreement'],
OrderReferenceNotification: ['OrderReferenceNotification', 'OrderReference'],
PaymentAuthorize: ['AuthorizationNotification', 'AuthorizationDetails'],
PaymentCapture: ['CaptureNotification', 'CaptureDetails'],
PaymentRefund: ['RefundNotification', 'RefundDetails'],
};
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, this.parseString(message.NotificationData)];
case 2:
result = _a.sent();
keys = xmlKeys[type] || [];
message.NotificationData = new response_1.AmazonResponse(type, result, keys[0], keys[1]);
return [2 /*return*/, message];
case 3:
err_4 = _a.sent();
return [2 /*return*/, Promise.reject(err_4)];
case 4: return [2 /*return*/];
}
});
});
};
Amazon.prototype.parseApiResponse = function (response) {
var parsed;
try {
parsed = JSON.parse(response);
}
catch (e) {
throw new error_1.ParseError('Could not parse Amazon response.', response);
}
if (parsed.error) {
throw new error_1.ApiError(parsed.error, parsed.error_description, parsed);
}
return parsed;
};
Amazon.prototype.parseString = function (response, method) {
return new Promise(function (resolve, reject) {
xml2js.parseString(response, { explicitArray: false }, function (err, res) {
if (err) {
reject(err);
}
if (res.ErrorResponse) {
err = {
code: 'Unknown',
message: 'Unknown MWS error',
};
if (res.ErrorResponse.Error) {
err = res.ErrorResponse.Error;
}
reject(new error_1.ApiError(err.code, err.message, res));
}
resolve(new response_1.AmazonResponse(method || '', res).response);
});
});
};
return Amazon;
}());
exports.Amazon = Amazon;