aws-crt
Version:
NodeJS/browser bindings to the aws-c-* libraries
130 lines • 4.1 kB
JavaScript
;
/*
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.isValidTopic = exports.isValidTopicFilter = exports.DEFAULT_KEEP_ALIVE = exports.normalize_payload_to_buffer = exports.normalize_payload = void 0;
/**
* @packageDocumentation
*/
/**
* Converts payload to Buffer or string regardless of the supplied type
* @param payload The payload to convert
* @internal
*/
function normalize_payload(payload) {
if (payload instanceof Buffer) {
// pass Buffer through
return payload;
}
if (typeof payload === 'string') {
// pass string through
return payload;
}
if (ArrayBuffer.isView(payload)) {
// return Buffer with view upon the same bytes (no copy)
var view = payload;
return Buffer.from(view.buffer, view.byteOffset, view.byteLength);
}
if (payload instanceof ArrayBuffer) {
// return Buffer with view upon the same bytes (no copy)
return Buffer.from(payload);
}
if (typeof payload === 'object') {
// Convert Object to JSON string
return JSON.stringify(payload);
}
if (!payload) {
return "";
}
throw new TypeError("payload parameter must be a string, object, or DataView.");
}
exports.normalize_payload = normalize_payload;
/**
* Converts payload to Buffer only, regardless of the supplied type
* @param payload The payload to convert
* @internal
*/
function normalize_payload_to_buffer(payload) {
var normalized = normalize_payload(payload);
if (typeof normalized === 'string') {
// pass string through
return Buffer.from(normalized);
}
return normalized;
}
exports.normalize_payload_to_buffer = normalize_payload_to_buffer;
/** @internal */
exports.DEFAULT_KEEP_ALIVE = 1200;
function isValidTopicInternal(topic, isFilter) {
var e_1, _a;
if (topic.length === 0 || topic.length > 65535) {
return false;
}
var sawHash = false;
try {
for (var _b = __values(topic.split('/')), _c = _b.next(); !_c.done; _c = _b.next()) {
var segment = _c.value;
if (sawHash) {
return false;
}
if (segment.length === 0) {
continue;
}
if (segment.includes("+")) {
if (!isFilter) {
return false;
}
if (segment.length > 1) {
return false;
}
}
if (segment.includes("#")) {
if (!isFilter) {
return false;
}
if (segment.length > 1) {
return false;
}
sawHash = true;
}
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
}
finally { if (e_1) throw e_1.error; }
}
return true;
}
function isValidTopicFilter(topicFilter) {
if (typeof (topicFilter) !== 'string') {
return false;
}
var topicFilterAsString = topicFilter;
return isValidTopicInternal(topicFilterAsString, true);
}
exports.isValidTopicFilter = isValidTopicFilter;
function isValidTopic(topic) {
if (typeof (topic) !== 'string') {
return false;
}
var topicAsString = topic;
return isValidTopicInternal(topicAsString, false);
}
exports.isValidTopic = isValidTopic;
//# sourceMappingURL=mqtt_shared.js.map