/**
* _subscribe - Private Interface
*
* @param Dictionary<string, object> args
* args is channel name and Procedure function callback and timetoken
* @param Procedure function callback.
* @param string timetoken.
*/
private void _subscribe(Dictionary<string, object> args)
{
clsPubnubCrypto pc = new clsPubnubCrypto(this.CIPHER_KEY);
string channel = args["channel"].ToString();
Procedure callback = (Procedure)args["callback"];
object timetoken = args["timestamp"];
// Begin Recusive Subscribe
try
{
// Build URL
List<string> url = new List<string>();
url.Add("subscribe");
url.Add(this.SUBSCRIBE_KEY);
url.Add(channel);
url.Add("0");
url.Add(timetoken.ToString());
// Wait for Message
List<object> response = _request(url);
// Update TimeToken
if (response[1].ToString().Length > 0)
timetoken = (object)response[1];
// Run user Callback and Reconnect if user permits.
object message = "";
foreach (object msg in (object[])response[0])
{
if (this.CIPHER_KEY.Length > 0)
{
if (msg.GetType() == typeof(string))
{
message = pc.decrypt(msg.ToString());
}
else if (msg.GetType() == typeof(object[]))
{
message = pc.decrypt((object[])msg);
}
else if (msg.GetType() == typeof(Dictionary<string, object>))
{
Dictionary<string, object> dict = (Dictionary<string, object>)msg;
message = pc.decrypt(dict);
}
}
else
{
if (msg.GetType() == typeof(object[]))
{
object[] obj = (object[])msg;
JArray jArr = new JArray();
for (int i = 0; i < obj.Count(); i++)
{
jArr.Add(obj[i]);
}
message = jArr;
}
else if (msg.GetType() == typeof(Dictionary<string, object>))
{
JObject jobj = new JObject();
foreach (KeyValuePair<string, object> pair in (Dictionary<string, object>)msg)
{
jobj.Add(pair.Key, pair.Value.ToString());
}
message = jobj;
}
else
{
message = msg;
}
}
if (!callback(message)) return;
}
// Keep listening if Okay.
args["channel"] = channel;
args["callback"] = callback;
args["timestamp"] = timetoken;
this._subscribe(args);
}
catch
{
System.Threading.Thread.Sleep(1000);
this._subscribe(args);
}
}
/**
* Publish
*
* Send a message to a channel.
*
* @param Dictionary<string, object> args
* args is string channel name and object message
* @return List<object> info.
*/
public List<object> Publish(Dictionary<string, object> args)
{
string channel = args["channel"].ToString();
object message = args["message"];
JavaScriptSerializer serializer = new JavaScriptSerializer();
clsPubnubCrypto pc = new clsPubnubCrypto(this.CIPHER_KEY);
if (this.CIPHER_KEY.Length > 0)
{
if (message.GetType() == typeof(string))
{
message = pc.encrypt(message.ToString());
}
else if (message.GetType() == typeof(object[]))
{
message = pc.encrypt((object[])message);
}
else if (message.GetType() == typeof(Dictionary<string, object>))
{
Dictionary<string, object> dict = (Dictionary<string, object>)message;
message = pc.encrypt(dict);
}
}
// Generate String to Sign
string signature = "0";
if (this.SECRET_KEY.Length > 0)
{
StringBuilder string_to_sign = new StringBuilder();
string_to_sign
.Append(this.PUBLISH_KEY)
.Append('/')
.Append(this.SUBSCRIBE_KEY)
.Append('/')
.Append(this.SECRET_KEY)
.Append('/')
.Append(channel)
.Append('/')
.Append(serializer.Serialize(message));
// Sign Message
signature = getHMACSHA256(string_to_sign.ToString());
}
// Build URL
List<string> url = new List<string>();
url.Add("publish");
url.Add(this.PUBLISH_KEY);
url.Add(this.SUBSCRIBE_KEY);
url.Add(signature);
url.Add(channel);
url.Add("0");
url.Add(serializer.Serialize(message));
// Return JSONArray
return _request(url);
}
/**
* _subscribe - Private Interface
*
* @param Dictionary<string, object> args
* args is channel name and Procedure function callback and timetoken
*
*/
private void _subscribe(Dictionary<string, object> args)
{
Procedure callback=null, connect_cb, disconnect_cb, reconnect_cb, error_cb;
clsPubnubCrypto pc = new clsPubnubCrypto(this.CIPHER_KEY);
string channel = args["channel"].ToString();
object timetoken = args["timestamp"];
// Validate Arguments
if (args["callback"] != null)
{
callback = (Procedure)args["callback"];
}
else
{
Console.WriteLine("Invalid Callback.");
}
if(args.ContainsKey("connect_cb") && args["connect_cb"] != null)
connect_cb = (Procedure)args["connect_cb"];
else
connect_cb = new Procedure(doNothing);
if (args.ContainsKey("disconnect_cb") && args["disconnect_cb"] != null)
disconnect_cb = (Procedure)args["disconnect_cb"];
else
disconnect_cb = new Procedure(doNothing);
if (args.ContainsKey("reconnect_cb") && args["reconnect_cb"] != null)
reconnect_cb = (Procedure)args["reconnect_cb"];
else
reconnect_cb = new Procedure(doNothing);
if (args.ContainsKey("error_cb") && args["error_cb"] != null)
error_cb = (Procedure)args["error_cb"];
else
error_cb = (Procedure)args["callback"];
if (channel == null || channel =="")
{
error_cb("Invalid Channel.");
return;
}
// Ensure Single Connection
if (subscriptions != null && subscriptions.Count > 0)
{
bool channel_exist = false;
foreach (Channel_status cs in subscriptions)
{
if (cs.channel == channel)
{
channel_exist = true;
break;
}
}
if (!channel_exist)
{
Channel_status cs = new Channel_status();
cs.channel = channel;
cs.connected = true;
subscriptions.Add(cs);
}
else
{
error_cb("Already Connected");
return;
}
}
else
{
// New Channel
Channel_status cs = new Channel_status();
cs.channel = channel;
cs.connected = true;
subscriptions = new List<Channel_status>();
subscriptions.Add(cs);
}
bool is_reconnected = false;
// Begin Recusive Subscribe
while (true)
{
try
{
// Build URL
List<string> url = new List<string>();
url.Add("subscribe");
url.Add(this.SUBSCRIBE_KEY);
url.Add(channel);
url.Add("0");
url.Add(timetoken.ToString());
// Stop Connection?
bool is_disconnect = false;
foreach (Channel_status cs in subscriptions)
{
if (cs.channel == channel)
{
if (!cs.connected)
{
disconnect_cb("Disconnected to channel : " + channel);
is_disconnect = true;
break;
}
}
}
if (is_disconnect)
return;
// Wait for Message
List<object> response = _request(url);
// Stop Connection?
foreach (Channel_status cs in subscriptions)
{
if (cs.channel == channel)
{
if (!cs.connected)
{
disconnect_cb("Disconnected to channel : " + channel);
is_disconnect = true;
break;
}
}
}
if (is_disconnect)
return;
// Problem?
if (response == null || response[1].ToString() == "0")
{
for (int i = 0; i < subscriptions.Count(); i++)
{
Channel_status cs = subscriptions[i];
if (cs.channel == channel)
{
subscriptions.RemoveAt(i);
disconnect_cb("Disconnected to channel : " + channel);
}
}
// Ensure Connected (Call Time Function)
while (true)
{
string time_token = Time().ToString();
if (time_token == "0")
{
// Reconnect Callback
reconnect_cb("Reconnecting to channel : " + channel);
Thread.Sleep(5000);
}
else
{
is_reconnected = true;
break;
}
}
if (is_reconnected)
{
break;
}
}
else
{
foreach (Channel_status cs in subscriptions)
{
if (cs.channel == channel)
{
// Connect Callback
if (!cs.first)
{
cs.first = true;
connect_cb("Connected to channel : " + channel);
break;
}
}
}
}
// Update TimeToken
if (response[1].ToString().Length > 0)
timetoken = (object)response[1];
// Run user Callback and Reconnect if user permits.
object message = "";
foreach (object msg in (object[])response[0])
{
if (this.CIPHER_KEY.Length > 0)
{
if (msg.GetType() == typeof(string))
{
message = pc.decrypt(msg.ToString());
}
else if (msg.GetType() == typeof(object[]))
{
message = pc.decrypt((object[])msg);
}
else if (msg.GetType() == typeof(Dictionary<string, object>))
{
Dictionary<string, object> dict = (Dictionary<string, object>)msg;
message = pc.decrypt(dict);
}
}
else
{
if (msg.GetType() == typeof(object[]))
{
object[] obj = (object[])msg;
JArray jArr = new JArray();
for (int i = 0; i < obj.Count(); i++)
{
jArr.Add(obj[i]);
}
message = jArr;
}
else if (msg.GetType() == typeof(Dictionary<string, object>))
{
message = extractObject((Dictionary<string, object>)msg);
}
else
{
message = msg;
}
}
if (!callback(message)) return;
}
}
catch
{
System.Threading.Thread.Sleep(1000);
}
}
if (is_reconnected)
{
// Reconnect Callback
args["channel"] = channel;
args["callback"] = callback;
args["timestamp"] = timetoken;
this._subscribe(args);
}
}
/**
* History
*
* Load history from a channel.
*
* @param Dictionary<string, string> args
* args is channel name and int limit history count response.
* @return List<object> of history.
*/
public List<object> History(Dictionary<string, string> args)
{
string channel = args["channel"];
int limit = Convert.ToInt32(args["limit"]);
List<string> url = new List<string>();
url.Add("history");
url.Add(this.SUBSCRIBE_KEY);
url.Add(channel);
url.Add("0");
url.Add(limit.ToString());
if (this.CIPHER_KEY.Length > 0)
{
clsPubnubCrypto pc = new clsPubnubCrypto(this.CIPHER_KEY);
return pc.decrypt(_request(url));
}
else
{
List<object> objTop = _request(url);
List<object> result = new List<object>();
foreach (object o in objTop)
{
if(o.GetType() == typeof(Dictionary<string,object>))
{
JObject jobj = new JObject();
foreach (KeyValuePair<string, object> pair in (Dictionary<string, object>)o)
{
jobj.Add(pair.Key, pair.Value.ToString());
}
result.Add(jobj);
}
else if (o.GetType() == typeof(object[]))
{
object[] obj = (object[])o;
JArray jArr = new JArray();
for (int i = 0; i < obj.Count(); i++)
{
jArr.Add(obj[i]);
}
result.Add(jArr);
}
else
{
result.Add(o);
}
}
return result;
}
}
/**
* History
*
* Load history from a channel.
*
* @param Dictionary<string, string> args
* args is channel name and int limit history count response.
* @return List<object> of history.
*/
public List<object> History(Dictionary<string, string> args)
{
string channel = args["channel"];
int limit = Convert.ToInt32(args["limit"]);
List<string> url = new List<string>();
url.Add("history");
url.Add(this.SUBSCRIBE_KEY);
url.Add(channel);
url.Add("0");
url.Add(limit.ToString());
if (this.CIPHER_KEY.Length > 0)
{
clsPubnubCrypto pc = new clsPubnubCrypto(this.CIPHER_KEY);
return pc.decrypt(_request(url));
}
else
{
return _request(url);
}
}