Comment faire des sockets en jQuery?

C'est très complexe et très créneau question, donc il y a peut-être pas réaliste de réponse pour ce que je dois faire.

J'ai une mission de travailler avec un récepteur sans fil, qui a besoin de plus que celui de jQuery get/post fonctionnalité.

À cause de la croix-domaine des questions, ce jQuery est exécutée à l'intérieur d'une Application Adobe Air, créé en Aptana IDE.

Elle doit être un adobe air, parce que le serveur web, ne sera pas près de l'endroit où le récepteur sans fil, éventuellement, obtenir est connecté.

J'ai donc besoin d'une application, qui peut communiquer avec le 2Know Renaissance du Récepteur sans Fil.

J'ai créé une application qui fait partie de la communication de l'amende. Voici les étapes que je peux faire jusqu'à présent.

  1. Connecter au récepteur
  2. Voir la façon dont de nombreux appareils de poche sont connectés au récepteur
  3. Alors il n'est pas censé être certains en arrière/en avant la communication, et ce n'est pas facile avec de l'ajax au moins à ma connaissance.

Voici le code que j'ai travaillé avec, c'est à propos de la 24e version, et c'est aussi loin que j'ai obtenue.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>2Know Wireless Communicator</title>
</head>
<body>
<h1>Current Status/Prograess</h1>
<!--- step 1. is server connected --->
<div id="server_status" style="font-size:12px;"></div>
<!--- step 2. list number of devices connected --->
<div id="device_count" style="font-size:12px;"></div>
<div id="device_info" style="font-size:12px;"></div>
<!--- step 3.a Service Handler handler status /csh = Service Handler handler --->
<div id="csh_status" style="font-size:12px;"></div>
<!--- step 3.b disconnect status handler handler of many handlers --->
<div id="dis_status" style="font-size:12px;"></div>
<!--- step 4. test sending a question to a device --->
<div id="post_results" style="font-size:12px;"></div>
<!-- load the local jquery -->
<script type="text/javascript" src="lib/jquery/jquery-1.4.2.js"></script>
<script type="text/javascript" src="lib/jquery/json_parse.js"></script>
<script type="text/javascript" src="lib/jquery/jparse.min.js"></script>
<script type="text/javascript" src="lib/air/AIRAliases.js"></script>
<script type="text/javascript" src="lib/air/AIRIntrospector.js" />
<!-- Include service monitor framework -->
<script type="application/x-shockwave-flash" src="lib/air/servicemonitor.swf"></script>
<script type="text/javascript">
function watch_connection() {
//do ajax get
$.ajax({
type: "GET",
datatype: "xml",
url: "http://my_ip_address:port/Services/ConnectServiceHandler",
success: function(response){
$('#post_results').html(response);
},
error:function (xhr, ajaxOptions, thrownError){
$('#post_results').html("readyState: "+xhr.readyState+"\nstatus: "+xhr.status);
}
});
setTimeout(function(){watch_connection;}, 100);
}
function disconnect_service_handler() {
//step 1. create xml document of data to send
var xml_string = '<data><disconnect_handler service="64"/></data>';
//step 2. post this to the registration service
$.ajax({
type: "POST",
datatype: "xml",
url:"http://my_ip_address:port/Services/DisconnectServiceHandler",
data: xml_string,
beforeSend: function(xhr){
xhr.withCredentials = true;
},
timeout: (2 * 1000),
success: function(response){
//parse the response
$(response).find("status").each(function() {
//get the status code
var disconnect_status = $(this).attr('code');
if (disconnect_status == 200) {
//change status bar message
$('#dis_status').html('Disconnecting: [200 Disconnected]');
//call connection using new guid
var my_guid = guid();
connect_service_handler(my_guid);
}
if (disconnect_status == 304) {
//change status bar message
$('#dis_status').html('Disconnecting: [304 No handler found]');
}
if (disconnect_status == 400) {
//change status bar message
$('#dis_status').html('Disconnecting: [400 Bad Request]');
}
if (disconnect_status == 401) {
//change status bar message
$('#dis_status').html('Disconnecting: [401 Not Found]');
}
if (disconnect_status == 500) {
//change status bar message
$('#dis_status').html('Disconnecting: [500 Internal Server Failure]');
}
if (disconnect_status == 501) {
//change status bar message
$('#dis_status').html('Disconnecting: [503 Service Unavailable]');
}
});
},
error:function (xhr, ajaxOptions, thrownError){
$('#dis_status').html('Disconnecting: [Disconnect Failure]');
}
});
}
function S4() {
return (((1+Math.random())*0x10000)|0).toString(16).substring(1);
}
function guid() {
return (S4()+S4()+"-"+S4()+"-"+S4()+"-"+S4()+"-"+S4()+S4()+S4());
}
function connect_service_handler(my_guid) {
//step 1. create xml document of data to send
var xml_string = '<data><connect_handler service="64"><application id="'+my_guid+'" name="MikesBigEar" /></connect_handler></data>';
//step 2. post this to the registration service
$.ajax({
type: "POST",
datatype: "xml",
url:"http://my_ip_address:port/Services/ConnectServiceHandler",
data: xml_string,
beforeSend: function(xhr){
xhr.withCredentials = true;
},
timeout: (2 * 1000),
success: function(response){
//parse the response
$(response).find("status").each(function() {
//get the status code
var connection_status = $(this).attr('code');
if (connection_status == 200) {
//change status bar message
$('#csh_status').html('Service Handler: [200 Connected]');
//keep connection open keep socket alive
//sends http request to us via post
//sends the incoming request id and device address back to make sure it goes to the correct device
//ask for user id or user authentication
//for user authentication can either use built-in user authentication or ask a question
//http 1.1 keep alive header
$('#post_results').html('Attempting to check for next piece of data...');
watch_connection();
}
if (connection_status == 303) {
//change status bar message
$('#csh_status').html('Service Handler: [303 The handler is assigned to another application]');
var my_guid = guid();
connect_service_handler(my_guid);
}
if (connection_status == 400) {
//change status bar message
$('#csh_status').html('Service Handler: [400 Bad Request]');
disconnect_service_handler();
}
if (connection_status == 401) {
//change status bar message
$('#csh_status').html('Service Handler: [401 Not Found]');
disconnect_service_handler();
}
if (connection_status == 500) {
//change status bar message
$('#csh_status').html('Service Handler: [500 Internal Server Failure]');
disconnect_service_handler();
}
if (connection_status == 501) {
//change status bar message
$('#csh_status').html('Service Handler: [501 Service Unavailable]');
disconnect_service_handler();
}
});
//pass the xml to the textarea
//$('#process').val('ConnectServiceHandler');
//$('#show_errors_here').val(response);
},
error:function (xhr, ajaxOptions, thrownError){
$('#csh_status').html('Service Handler: [Connection Failure]');
//alert("readyState: "+xhr.readyState+"\nstatus: "+xhr.status);
//alert("responseText: "+xhr.responseText);
//alert(xhr.status);
//alert(thrownError);
}
});
//set timed re-check and store it
//setTimeout(function(){connect_service_handler(my_guid);}, 8000);
}
function get_device_count(my_guid) {
//get the total number of devices
//default receiver status
var receiver_status = '';
$('#device_count').html('Device Count: [Checking...]');
$('#device_info').html('');
//get the wireless receiver status via ajax xml
$.ajax({
type: "GET",
url:"http://my_ip_address:port/Services/GetDevices",
beforeSend: function(xhr){
xhr.withCredentials = true;
},
timeout: (2 * 1000),
success: function(response){
$(response).find("status").each(function() {
//get the status code
var receiver_status = $(this).attr('code');
if (receiver_status == 200) {
//change status bar message
$('#device_count').html('Device Count: [200 Connected]');
}
if (receiver_status == 400) {
//change status bar message
$('#device_count').html('Device Count: [400 Bad Request]');
}
if (receiver_status == 401) {
//change status bar message
$('#device_count').html('Device Count: [401 Not Found]');
}
if (receiver_status == 500) {
//change status bar message
$('#device_count').html('Device Count: [500 Internal Server Failure]');
}
if (receiver_status == 501) {
//change status bar message
$('#device_count').html('Device Count: [501 Service Unavailable]');
}
});
var device_count = 0;
//add to div
$('#device_info').append('<ul style="font-size:10px;">');
$(response).find("device").each(function() {
//get each property
var device_status = $(this).attr('status');
var short_address = $(this).attr('short_address');
var mac_address = $(this).attr('mac_address');
var pan_id = $(this).attr('pan_id');
var type = $(this).attr('type');
device_count = device_count + 1;
//get session data
$(this).find("session").each(function() {
//get session data
var created_date = $(this).attr('date');
var created_time = $(this).attr('time');
});
$('#device_info').append('<li style="list-style:none;">Device #'+device_count+'<ul>');
//add list item
$('#device_info').append('<li> Mac Address: ['+mac_address+']</li>');
$('#device_info').append('<li> Short Address: ['+short_address+']</li>');
$('#device_info').append('<li> Pan ID: ['+pan_id+']</li>');
$('#device_info').append('</ul></li><br/>');
//send request to this device
//post_live_activity(mac_address,my_guid);
});
//end list
$('#device_info').append('</ul>');
if (device_count === 0) {
$('#device_count').html('Device Count: [0 Devices Found]');
} else if (device_count > 0) {
$('#device_count').html('Device Count: [' + device_count + ' Devices Found]');
}
},
error:function (xhr, ajaxOptions, thrownError){
$('#device_count').html('Device Count: [Connection Failure]');
//alert(xhr.status);
//alert(thrownError);
}
});
//set timed re-check and store it
setTimeout(function(){get_device_count(my_guid);}, 13000);
}
function get_server_status(my_guid) {
//default receiver status
var receiver_status = '';
//get the Renaissance Wireless Server via ajax xml
$.ajax({
type: "GET",
url:"http://my_ip_address:port/Services/GetAccessPoints",
timeout: (2 * 1000),
beforeSend: function(xhr){
xhr.withCredentials = true;
},
success: function(response){
$(response).find("status").each(function() {
//get the status code
var receiver_status = $(this).attr('code');
if (receiver_status == 200) {
//change status bar message
$('#server_status').html('Renaissance Wireless Server: [200 Connected]');
//step 2. get device count
get_device_count(my_guid);
//step 3.part 1 get the guid to be used as the application id
//var my_guid = guid();
//step 3. part 2 connect to a service handler whatever that means
connect_service_handler(my_guid);
}
if (receiver_status == 400) {
//change status bar message
$('#server_status').html('Renaissance Wireless Server: [400 Bad Request]');
//set timed re-check and store it
setTimeout(function(){get_server_status(my_guid);}, 12300);
}
if (receiver_status == 401) {
//change status bar message
$('#server_status').html('Renaissance Wireless Server: [401 Not Found]');
//set timed re-check and store it
setTimeout(function(){get_server_status(my_guid);}, 12300);
}
if (receiver_status == 500) {
//change status bar message
$('#server_status').html('Renaissance Wireless Server: [500 Internal Server Failure]');
//set timed re-check and store it
setTimeout(function(){get_server_status(my_guid);}, 12300);
}
if (receiver_status == 501) {
//change status bar message
$('#server_status').html('Renaissance Wireless Server: [503 Service Unavailable]');
//set timed re-check and store it
setTimeout(function(){get_server_status(my_guid);}, 12300);
}
//pass the xml to the textarea
//$('#process').val('GetAccessPoints');
//$('#show_errors_here').val(response);
});
},
error:function (xhr, ajaxOptions, thrownError){
$('#server_status').html('Renaissance Wireless Server: [Connection Failure]');
//alert(xhr.status);
//alert(thrownError);
}
});
//set timed re-check and store it
//setTimeout(function(){get_server_status(my_guid);}, 12300);
}
$(document).ready(function() {
//step 3.part 1 get the guid to be used as the application id
var my_guid = guid();
//step 1 validate
get_server_status(my_guid);
//step 2. get device count
get_device_count();
//step 3.part 1 get the guid to be used as the application id
//var my_guid = guid();
//step 3. part 2 connect to a service handler whatever that means
//connect_service_handler(my_guid);
});
</script>
</body>
</html>

Ma question est tout simplement il y a un autre plugin jquery-je, ou suis-je en approchant de ce mal?

Merci...

La raison de ce qui doit être une solution de client, c'est parce que cette application va être installée avec le récepteur sans fil et les appareils de poche. Il ne sera pas en aucune façon près de du serveur web, et je ne peux pas avoir des gens de l'installation/configuration d'un serveur web en tant que partie de l'installation/l'utilisation de processus. J'ai donc besoin d'une approche-client de faire toutes les communiquer. Et comme je n'ai pas de connaissance en flash et adobe air permettent de pour les communications inter-domaines, cela peut fonctionner, si je peux tout comprendre. 😛

OriginalL'auteur crosenblum | 2011-03-10