@microsoft/signalr
Version:
ASP.NET Core SignalR Client
204 lines • 11.6 kB
JavaScript
;
// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
var __assign = (this && this.__assign) || Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
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 ILogger_1 = require("./ILogger");
var ITransport_1 = require("./ITransport");
var Utils_1 = require("./Utils");
/** @private */
var WebSocketTransport = /** @class */ (function () {
function WebSocketTransport(httpClient, accessTokenFactory, logger, logMessageContent, webSocketConstructor, headers) {
this.logger = logger;
this.accessTokenFactory = accessTokenFactory;
this.logMessageContent = logMessageContent;
this.webSocketConstructor = webSocketConstructor;
this.httpClient = httpClient;
this.onreceive = null;
this.onclose = null;
this.headers = headers;
}
WebSocketTransport.prototype.connect = function (url, transferFormat) {
return __awaiter(this, void 0, void 0, function () {
var token;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
Utils_1.Arg.isRequired(url, "url");
Utils_1.Arg.isRequired(transferFormat, "transferFormat");
Utils_1.Arg.isIn(transferFormat, ITransport_1.TransferFormat, "transferFormat");
this.logger.log(ILogger_1.LogLevel.Trace, "(WebSockets transport) Connecting.");
if (!this.accessTokenFactory) return [3 /*break*/, 2];
return [4 /*yield*/, this.accessTokenFactory()];
case 1:
token = _a.sent();
if (token) {
url += (url.indexOf("?") < 0 ? "?" : "&") + ("access_token=" + encodeURIComponent(token));
}
_a.label = 2;
case 2: return [2 /*return*/, new Promise(function (resolve, reject) {
url = url.replace(/^http/, "ws");
var webSocket;
var cookies = _this.httpClient.getCookieString(url);
var opened = false;
if (Utils_1.Platform.isNode) {
var headers = {};
var _a = Utils_1.getUserAgentHeader(), name_1 = _a[0], value = _a[1];
headers[name_1] = value;
if (cookies) {
headers["Cookie"] = "" + cookies;
}
// Only pass headers when in non-browser environments
webSocket = new _this.webSocketConstructor(url, undefined, {
headers: __assign({}, headers, _this.headers),
});
}
if (!webSocket) {
// Chrome is not happy with passing 'undefined' as protocol
webSocket = new _this.webSocketConstructor(url);
}
if (transferFormat === ITransport_1.TransferFormat.Binary) {
webSocket.binaryType = "arraybuffer";
}
// tslint:disable-next-line:variable-name
webSocket.onopen = function (_event) {
_this.logger.log(ILogger_1.LogLevel.Information, "WebSocket connected to " + url + ".");
_this.webSocket = webSocket;
opened = true;
resolve();
};
webSocket.onerror = function (event) {
var error = null;
// ErrorEvent is a browser only type we need to check if the type exists before using it
if (typeof ErrorEvent !== "undefined" && event instanceof ErrorEvent) {
error = event.error;
}
else {
error = new Error("There was an error with the transport.");
}
reject(error);
};
webSocket.onmessage = function (message) {
_this.logger.log(ILogger_1.LogLevel.Trace, "(WebSockets transport) data received. " + Utils_1.getDataDetail(message.data, _this.logMessageContent) + ".");
if (_this.onreceive) {
try {
_this.onreceive(message.data);
}
catch (error) {
_this.close(error);
return;
}
}
};
webSocket.onclose = function (event) {
// Don't call close handler if connection was never established
// We'll reject the connect call instead
if (opened) {
_this.close(event);
}
else {
var error = null;
// ErrorEvent is a browser only type we need to check if the type exists before using it
if (typeof ErrorEvent !== "undefined" && event instanceof ErrorEvent) {
error = event.error;
}
else {
error = new Error("There was an error with the transport.");
}
reject(error);
}
};
})];
}
});
});
};
WebSocketTransport.prototype.send = function (data) {
if (this.webSocket && this.webSocket.readyState === this.webSocketConstructor.OPEN) {
this.logger.log(ILogger_1.LogLevel.Trace, "(WebSockets transport) sending data. " + Utils_1.getDataDetail(data, this.logMessageContent) + ".");
this.webSocket.send(data);
return Promise.resolve();
}
return Promise.reject("WebSocket is not in the OPEN state");
};
WebSocketTransport.prototype.stop = function () {
if (this.webSocket) {
// Manually invoke onclose callback inline so we know the HttpConnection was closed properly before returning
// This also solves an issue where websocket.onclose could take 18+ seconds to trigger during network disconnects
this.close(undefined);
}
return Promise.resolve();
};
WebSocketTransport.prototype.close = function (event) {
// webSocket will be null if the transport did not start successfully
if (this.webSocket) {
// Clear websocket handlers because we are considering the socket closed now
this.webSocket.onclose = function () { };
this.webSocket.onmessage = function () { };
this.webSocket.onerror = function () { };
this.webSocket.close();
this.webSocket = undefined;
}
this.logger.log(ILogger_1.LogLevel.Trace, "(WebSockets transport) socket closed.");
if (this.onclose) {
if (this.isCloseEvent(event) && (event.wasClean === false || event.code !== 1000)) {
this.onclose(new Error("WebSocket closed with status code: " + event.code + " (" + event.reason + ")."));
}
else if (event instanceof Error) {
this.onclose(event);
}
else {
this.onclose();
}
}
};
WebSocketTransport.prototype.isCloseEvent = function (event) {
return event && typeof event.wasClean === "boolean" && typeof event.code === "number";
};
return WebSocketTransport;
}());
exports.WebSocketTransport = WebSocketTransport;
//# sourceMappingURL=WebSocketTransport.js.map