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-rw-r--r--webclients/novnc/include/web-socket-js/web_socket.js114
1 files changed, 82 insertions, 32 deletions
diff --git a/webclients/novnc/include/web-socket-js/web_socket.js b/webclients/novnc/include/web-socket-js/web_socket.js
index a133013..06cc5d0 100644
--- a/webclients/novnc/include/web-socket-js/web_socket.js
+++ b/webclients/novnc/include/web-socket-js/web_socket.js
@@ -1,49 +1,69 @@
// Copyright: Hiroshi Ichikawa <http://gimite.net/en/>
// License: New BSD License
// Reference: http://dev.w3.org/html5/websockets/
-// Reference: http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol
+// Reference: http://tools.ietf.org/html/rfc6455
(function() {
- if (window.WebSocket && !window.WEB_SOCKET_FORCE_FLASH) return;
-
- var console = window.console;
- if (!console || !console.log || !console.error) {
- console = {log: function(){ }, error: function(){ }};
+ if (window.WEB_SOCKET_FORCE_FLASH) {
+ // Keeps going.
+ } else if (window.WebSocket) {
+ return;
+ } else if (window.MozWebSocket) {
+ // Firefox.
+ window.WebSocket = MozWebSocket;
+ return;
}
- if (!swfobject.hasFlashPlayerVersion("10.0.0")) {
- console.error("Flash Player >= 10.0.0 is required.");
+ var logger;
+ if (window.WEB_SOCKET_LOGGER) {
+ logger = WEB_SOCKET_LOGGER;
+ } else if (window.console && window.console.log && window.console.error) {
+ // In some environment, console is defined but console.log or console.error is missing.
+ logger = window.console;
+ } else {
+ logger = {log: function(){ }, error: function(){ }};
+ }
+
+ // swfobject.hasFlashPlayerVersion("10.0.0") doesn't work with Gnash.
+ if (swfobject.getFlashPlayerVersion().major < 10) {
+ logger.error("Flash Player >= 10.0.0 is required.");
return;
}
if (location.protocol == "file:") {
- console.error(
+ logger.error(
"WARNING: web-socket-js doesn't work in file:///... URL " +
"unless you set Flash Security Settings properly. " +
"Open the page via Web server i.e. http://...");
}
/**
- * This class represents a faux web socket.
+ * Our own implementation of WebSocket class using Flash.
* @param {string} url
- * @param {string} protocol
+ * @param {array or string} protocols
* @param {string} proxyHost
* @param {int} proxyPort
* @param {string} headers
*/
- WebSocket = function(url, protocol, proxyHost, proxyPort, headers) {
+ window.WebSocket = function(url, protocols, proxyHost, proxyPort, headers) {
var self = this;
self.__id = WebSocket.__nextId++;
WebSocket.__instances[self.__id] = self;
self.readyState = WebSocket.CONNECTING;
self.bufferedAmount = 0;
self.__events = {};
+ if (!protocols) {
+ protocols = [];
+ } else if (typeof protocols == "string") {
+ protocols = [protocols];
+ }
// Uses setTimeout() to make sure __createFlash() runs after the caller sets ws.onopen etc.
// Otherwise, when onopen fires immediately, onopen is called before it is set.
- setTimeout(function() {
+ self.__createTask = setTimeout(function() {
WebSocket.__addTask(function() {
+ self.__createTask = null;
WebSocket.__flash.create(
- self.__id, url, protocol, proxyHost || null, proxyPort || 0, headers || null);
+ self.__id, url, protocols, proxyHost || null, proxyPort || 0, headers || null);
});
}, 0);
};
@@ -78,6 +98,12 @@
* Close this web socket gracefully.
*/
WebSocket.prototype.close = function() {
+ if (this.__createTask) {
+ clearTimeout(this.__createTask);
+ this.__createTask = null;
+ this.readyState = WebSocket.CLOSED;
+ return;
+ }
if (this.readyState == WebSocket.CLOSED || this.readyState == WebSocket.CLOSING) {
return;
}
@@ -131,7 +157,7 @@
events[i](event);
}
var handler = this["on" + event.type];
- if (handler) handler(event);
+ if (handler) handler.apply(this, [event]);
};
/**
@@ -139,16 +165,22 @@
* @param {Object} flashEvent
*/
WebSocket.prototype.__handleEvent = function(flashEvent) {
+
if ("readyState" in flashEvent) {
this.readyState = flashEvent.readyState;
}
+ if ("protocol" in flashEvent) {
+ this.protocol = flashEvent.protocol;
+ }
var jsEvent;
if (flashEvent.type == "open" || flashEvent.type == "error") {
jsEvent = this.__createSimpleEvent(flashEvent.type);
} else if (flashEvent.type == "close") {
- // TODO implement jsEvent.wasClean
jsEvent = this.__createSimpleEvent("close");
+ jsEvent.wasClean = flashEvent.wasClean ? true : false;
+ jsEvent.code = flashEvent.code;
+ jsEvent.reason = flashEvent.reason;
} else if (flashEvent.type == "message") {
var data = decodeURIComponent(flashEvent.message);
jsEvent = this.__createMessageEvent("message", data);
@@ -157,6 +189,7 @@
}
this.dispatchEvent(jsEvent);
+
};
WebSocket.prototype.__createSimpleEvent = function(type) {
@@ -188,6 +221,9 @@
WebSocket.CLOSING = 2;
WebSocket.CLOSED = 3;
+ // Field to check implementation of WebSocket.
+ WebSocket.__isFlashImplementation = true;
+ WebSocket.__initialized = false;
WebSocket.__flash = null;
WebSocket.__instances = {};
WebSocket.__tasks = [];
@@ -207,16 +243,31 @@
* Loads WebSocketMain.swf and creates WebSocketMain object in Flash.
*/
WebSocket.__initialize = function() {
- if (WebSocket.__flash) return;
+
+ if (WebSocket.__initialized) return;
+ WebSocket.__initialized = true;
if (WebSocket.__swfLocation) {
// For backword compatibility.
window.WEB_SOCKET_SWF_LOCATION = WebSocket.__swfLocation;
}
if (!window.WEB_SOCKET_SWF_LOCATION) {
- console.error("[WebSocket] set WEB_SOCKET_SWF_LOCATION to location of WebSocketMain.swf");
+ logger.error("[WebSocket] set WEB_SOCKET_SWF_LOCATION to location of WebSocketMain.swf");
return;
}
+ if (!window.WEB_SOCKET_SUPPRESS_CROSS_DOMAIN_SWF_ERROR &&
+ !WEB_SOCKET_SWF_LOCATION.match(/(^|\/)WebSocketMainInsecure\.swf(\?.*)?$/) &&
+ WEB_SOCKET_SWF_LOCATION.match(/^\w+:\/\/([^\/]+)/)) {
+ var swfHost = RegExp.$1;
+ if (location.host != swfHost) {
+ logger.error(
+ "[WebSocket] You must host HTML and WebSocketMain.swf in the same host " +
+ "('" + location.host + "' != '" + swfHost + "'). " +
+ "See also 'How to host HTML file and SWF file in different domains' section " +
+ "in README.md. If you use WebSocketMainInsecure.swf, you can suppress this message " +
+ "by WEB_SOCKET_SUPPRESS_CROSS_DOMAIN_SWF_ERROR = true;");
+ }
+ }
var container = document.createElement("div");
container.id = "webSocketContainer";
// Hides Flash box. We cannot use display: none or visibility: hidden because it prevents
@@ -250,9 +301,11 @@
null,
function(e) {
if (!e.success) {
- console.error("[WebSocket] swfobject.embedSWF failed");
+ logger.error("[WebSocket] swfobject.embedSWF failed");
}
- });
+ }
+ );
+
};
/**
@@ -287,7 +340,7 @@
WebSocket.__instances[events[i].webSocketId].__handleEvent(events[i]);
}
} catch (e) {
- console.error(e);
+ logger.error(e);
}
}, 0);
return true;
@@ -295,12 +348,12 @@
// Called by Flash.
WebSocket.__log = function(message) {
- console.log(decodeURIComponent(message));
+ logger.log(decodeURIComponent(message));
};
// Called by Flash.
WebSocket.__error = function(message) {
- console.error(decodeURIComponent(message));
+ logger.error(decodeURIComponent(message));
};
WebSocket.__addTask = function(task) {
@@ -327,15 +380,12 @@
};
if (!window.WEB_SOCKET_DISABLE_AUTO_INITIALIZATION) {
- if (window.addEventListener) {
- window.addEventListener("load", function(){
- WebSocket.__initialize();
- }, false);
- } else {
- window.attachEvent("onload", function(){
- WebSocket.__initialize();
- });
- }
+ // NOTE:
+ // This fires immediately if web_socket.js is dynamically loaded after
+ // the document is loaded.
+ swfobject.addDomLoadEvent(function() {
+ WebSocket.__initialize();
+ });
}
})();
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