/**
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* http.js: Transport for outputting to a json-rpcserver.
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*
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* (C) 2010 Charlie Robbins
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* MIT LICENCE
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*/
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'use strict';
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function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
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function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
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function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
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function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
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function _readOnlyError(r) { throw new TypeError('"' + r + '" is read-only'); }
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function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
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function _defineProperties(e, r) { for (var t = 0; t < r.length; t++) { var o = r[t]; o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o); } }
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function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }
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function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
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function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
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function _callSuper(t, o, e) { return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e)); }
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function _possibleConstructorReturn(t, e) { if (e && ("object" == _typeof(e) || "function" == typeof e)) return e; if (void 0 !== e) throw new TypeError("Derived constructors may only return object or undefined"); return _assertThisInitialized(t); }
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function _assertThisInitialized(e) { if (void 0 === e) throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); return e; }
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function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
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function _getPrototypeOf(t) { return _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function (t) { return t.__proto__ || Object.getPrototypeOf(t); }, _getPrototypeOf(t); }
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function _inherits(t, e) { if ("function" != typeof e && null !== e) throw new TypeError("Super expression must either be null or a function"); t.prototype = Object.create(e && e.prototype, { constructor: { value: t, writable: !0, configurable: !0 } }), Object.defineProperty(t, "prototype", { writable: !1 }), e && _setPrototypeOf(t, e); }
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function _setPrototypeOf(t, e) { return _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function (t, e) { return t.__proto__ = e, t; }, _setPrototypeOf(t, e); }
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var http = require('http');
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var https = require('https');
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var _require = require('readable-stream'),
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Stream = _require.Stream;
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var TransportStream = require('winston-transport');
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var _require2 = require('safe-stable-stringify'),
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configure = _require2.configure;
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/**
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* Transport for outputting to a json-rpc server.
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* @type {Stream}
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* @extends {TransportStream}
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*/
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module.exports = /*#__PURE__*/function (_TransportStream) {
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/**
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* Constructor function for the Http transport object responsible for
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* persisting log messages and metadata to a terminal or TTY.
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* @param {!Object} [options={}] - Options for this instance.
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*/
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// eslint-disable-next-line max-statements
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function Http() {
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var _this;
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var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
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_classCallCheck(this, Http);
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_this = _callSuper(this, Http, [options]);
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_this.options = options;
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_this.name = options.name || 'http';
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_this.ssl = !!options.ssl;
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_this.host = options.host || 'localhost';
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_this.port = options.port;
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_this.auth = options.auth;
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_this.path = options.path || '';
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_this.maximumDepth = options.maximumDepth;
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_this.agent = options.agent;
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_this.headers = options.headers || {};
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_this.headers['content-type'] = 'application/json';
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_this.batch = options.batch || false;
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_this.batchInterval = options.batchInterval || 5000;
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_this.batchCount = options.batchCount || 10;
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_this.batchOptions = [];
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_this.batchTimeoutID = -1;
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_this.batchCallback = {};
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if (!_this.port) {
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_this.port = _this.ssl ? 443 : 80;
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}
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return _this;
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}
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/**
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* Core logging method exposed to Winston.
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* @param {Object} info - TODO: add param description.
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* @param {function} callback - TODO: add param description.
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* @returns {undefined}
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*/
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_inherits(Http, _TransportStream);
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return _createClass(Http, [{
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key: "log",
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value: function log(info, callback) {
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var _this2 = this;
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this._request(info, null, null, function (err, res) {
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if (res && res.statusCode !== 200) {
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err = new Error("Invalid HTTP Status Code: ".concat(res.statusCode));
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}
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if (err) {
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_this2.emit('warn', err);
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} else {
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_this2.emit('logged', info);
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}
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});
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// Remark: (jcrugzz) Fire and forget here so requests dont cause buffering
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// and block more requests from happening?
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if (callback) {
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setImmediate(callback);
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}
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}
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/**
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* Query the transport. Options object is optional.
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* @param {Object} options - Loggly-like query options for this instance.
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* @param {function} callback - Continuation to respond to when complete.
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* @returns {undefined}
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*/
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}, {
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key: "query",
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value: function query(options, callback) {
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if (typeof options === 'function') {
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callback = options;
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options = {};
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}
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options = {
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method: 'query',
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params: this.normalizeQuery(options)
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};
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var auth = options.params.auth || null;
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delete options.params.auth;
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var path = options.params.path || null;
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delete options.params.path;
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this._request(options, auth, path, function (err, res, body) {
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if (res && res.statusCode !== 200) {
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err = new Error("Invalid HTTP Status Code: ".concat(res.statusCode));
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}
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if (err) {
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return callback(err);
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}
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if (typeof body === 'string') {
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try {
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body = JSON.parse(body);
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} catch (e) {
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return callback(e);
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}
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}
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callback(null, body);
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});
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}
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/**
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* Returns a log stream for this transport. Options object is optional.
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* @param {Object} options - Stream options for this instance.
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* @returns {Stream} - TODO: add return description
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*/
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}, {
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key: "stream",
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value: function stream() {
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var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
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var stream = new Stream();
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options = {
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method: 'stream',
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params: options
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};
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var path = options.params.path || null;
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delete options.params.path;
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var auth = options.params.auth || null;
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delete options.params.auth;
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var buff = '';
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var req = this._request(options, auth, path);
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stream.destroy = function () {
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return req.destroy();
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};
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req.on('data', function (data) {
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data = (buff + data).split(/\n+/);
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var l = data.length - 1;
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var i = 0;
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for (; i < l; i++) {
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try {
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stream.emit('log', JSON.parse(data[i]));
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} catch (e) {
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stream.emit('error', e);
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}
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}
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buff = data[l];
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});
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req.on('error', function (err) {
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return stream.emit('error', err);
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});
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return stream;
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}
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/**
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* Make a request to a winstond server or any http server which can
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* handle json-rpc.
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* @param {function} options - Options to sent the request.
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* @param {Object?} auth - authentication options
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* @param {string} path - request path
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* @param {function} callback - Continuation to respond to when complete.
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*/
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}, {
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key: "_request",
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value: function _request(options, auth, path, callback) {
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options = options || {};
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auth = auth || this.auth;
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path = path || this.path || '';
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if (this.batch) {
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this._doBatch(options, callback, auth, path);
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} else {
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this._doRequest(options, callback, auth, path);
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}
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}
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/**
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* Send or memorize the options according to batch configuration
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* @param {function} options - Options to sent the request.
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* @param {function} callback - Continuation to respond to when complete.
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* @param {Object?} auth - authentication options
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* @param {string} path - request path
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*/
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}, {
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key: "_doBatch",
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value: function _doBatch(options, callback, auth, path) {
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this.batchOptions.push(options);
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if (this.batchOptions.length === 1) {
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// First message stored, it's time to start the timeout!
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var me = this;
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this.batchCallback = callback;
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this.batchTimeoutID = setTimeout(function () {
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// timeout is reached, send all messages to endpoint
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me.batchTimeoutID = -1;
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me._doBatchRequest(me.batchCallback, auth, path);
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}, this.batchInterval);
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}
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if (this.batchOptions.length === this.batchCount) {
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// max batch count is reached, send all messages to endpoint
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this._doBatchRequest(this.batchCallback, auth, path);
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}
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}
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/**
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* Initiate a request with the memorized batch options, stop the batch timeout
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* @param {function} callback - Continuation to respond to when complete.
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* @param {Object?} auth - authentication options
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* @param {string} path - request path
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*/
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}, {
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key: "_doBatchRequest",
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value: function _doBatchRequest(callback, auth, path) {
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if (this.batchTimeoutID > 0) {
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clearTimeout(this.batchTimeoutID);
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this.batchTimeoutID = -1;
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}
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var batchOptionsCopy = this.batchOptions.slice();
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this.batchOptions = [];
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this._doRequest(batchOptionsCopy, callback, auth, path);
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}
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/**
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* Make a request to a winstond server or any http server which can
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* handle json-rpc.
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* @param {function} options - Options to sent the request.
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* @param {function} callback - Continuation to respond to when complete.
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* @param {Object?} auth - authentication options
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* @param {string} path - request path
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*/
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}, {
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key: "_doRequest",
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value: function _doRequest(options, callback, auth, path) {
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// Prepare options for outgoing HTTP request
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var headers = Object.assign({}, this.headers);
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if (auth && auth.bearer) {
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headers.Authorization = "Bearer ".concat(auth.bearer);
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}
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var req = (this.ssl ? https : http).request(_objectSpread(_objectSpread({}, this.options), {}, {
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method: 'POST',
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host: this.host,
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port: this.port,
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path: "/".concat(path.replace(/^\//, '')),
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headers: headers,
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auth: auth && auth.username && auth.password ? "".concat(auth.username, ":").concat(auth.password) : '',
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agent: this.agent
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}));
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req.on('error', callback);
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req.on('response', function (res) {
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return res.on('end', function () {
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return callback(null, res);
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}).resume();
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});
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var jsonStringify = configure(_objectSpread({}, this.maximumDepth && {
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maximumDepth: this.maximumDepth
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}));
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req.end(Buffer.from(jsonStringify(options, this.options.replacer), 'utf8'));
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}
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}]);
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}(TransportStream);
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