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js/dos/connNETsrv.js
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794
js/dos/connNETsrv.js
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/**
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** ==============================
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** O O O OOOO
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** O O O O O O
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** O O O O O O
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** OOOO OOOO O OOO OOOO
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** O O O O O O O
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** O O O O O O O
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** OOOO OOOO O O OOOO
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** ==============================
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** Dr. Stefan Bosse http://www.bsslab.de
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**
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** COPYRIGHT: THIS SOFTWARE, EXECUTABLE AND SOURCE CODE IS OWNED
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** BY THE AUTHOR(S).
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** THIS SOURCE CODE MAY NOT BE COPIED, EXTRACTED,
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** MODIFIED, OR OTHERWISE USED IN A CONTEXT
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** OUTSIDE OF THE SOFTWARE SYSTEM.
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**
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** $AUTHORS: Stefan Bosse
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** $INITIAL: (C) 2006-2017 bLAB
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** $CREATED: 26-06-16 by sbosse.
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** $VERSION: 1.3.3
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**
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** $INFO:
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**
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** ==============================================
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** DOS: Broker Connection Module
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** Server, TCP connection
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** Data transfer: JSON
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** ==============================================
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*
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* Default: Mode=AUTO
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*
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*
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* Uni- or bidirectional TCP client-only (Browser app.) Interface with
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* non-blocking / blocking communication to a broker server.
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*
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* Unidrirectional mode: Two non-persistent TCP connections (non-blocking connection)
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* Bidirectional mode: One persistent TCP connection (blocking connection)
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* Keepalive: reuse socket connction (default)
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*
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*
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** $ENDOFINFO
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*/
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"use strict";
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var log = 0;
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var Io = Require('com/io');
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var Net = Require('dos/network');
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var Buf = Require('dos/buf');
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var Rpc = Require('dos/rpc');
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var util = Require('util');
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var net = Require('net');
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var xmldoc = Require('dos/ext/xmldoc');
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var Sch = Require('dos/scheduler');
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var Comp = Require('com/compat');
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var Perv = Comp.pervasives;
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var String = Comp.string;
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var Array = Comp.array;
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var Obj = Comp.object;
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var Filename = Comp.filename;
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var div = Perv.div;
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var Conn = Require('dos/connutils');
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var isNode = Comp.isNodeJS();
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var Mode = Conn.Mode;
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/**************************
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** TCPIP Broker SERVER Interface
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**************************/
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/**
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*
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* @param {port} hostport
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* @param {string} srv_url
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* @param {string} srv_ipport
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* @param {rpcrouter} router
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* @constructor
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*/
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// tyepof options = {hostport,srv_url,srv_ipport,router,verbose,env,mode}
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// typeof mode = 'unidir'|'bidir'
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var Server = function(options) {
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var self=this;
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this.env=options.env||{};
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this.srv_url=options.srv_url; // URL
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this.srv_ipport=options.srv_ipport; // URL:port
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this.hostport=options.hostport; // Public communication Net.Port == Host port
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this.status = Net.Status.STD_OK;
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this.router=options.router;
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this.app=undefined;
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this.server=undefined;
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// Pending collect requests of clients
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this.client_queue=[];
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// Message queue for client collect requests
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this.rpcio_queue=[];
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// Client request and reply channel cache (ip+ipport hash)
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this.hosts={};
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// Client port-host mapping cache (hostport/sendport hash)
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// There can be multiple ports associated with one hosts[ipport] cache entry
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this.ports={};
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this.lock=false;
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this.mode=Mode.AUTO; // automatic ONECHAN | TWOCHAN based on client reqeuest
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this.keepalive=(options.keepalive==undefined?true:options.keepalive);
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this.timeout=200; // Queue timeout
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this.conn_port = Net.uniqport();
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this.rpccon=Rpc.RpcConn(
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self.conn_port,
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/*
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** send: Connection Forward and Deliver Operation
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** ONECHAN client connectivity: collect
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** TWOCHAN client connectivity: forward
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*/
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function(rpcio,callback) {
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// if (self.forward(msg)==0) queue it;
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// We must store and handle these messages for client collection requests!!
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// console.log(rpcio)
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// console.log(Net.Print.port(rpcio.sendport))
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var msg=self.format(rpcio),res=0,
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broadcast=rpcio.operation==Rpc.Operation.LOOKUP||rpcio.operation==Rpc.Operation.WHEREIS;
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// Try first direct forwarding ...
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if (broadcast) res=self.broadcast(msg);
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else res=self.forward(msg);
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if (!res || broadcast) {
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// Now queue message for collecting clients
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rpcio.timeout=Sch.GetTime()+(broadcast?self.timeout:self.timeout*5);
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self.rpcio_queue.push(rpcio);
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// Trigger schedule
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if (callback && rpcio.callback==undefined) rpcio.callback=callback;
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else if (rpcio.callback!=undefined) Io.out('[BHPS] Warning: RPCIO has a callback: '+util.inspect(rpcio));
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self.schedule();
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} else {
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if (callback) callback(Net.Status.STD_OK,rpcio);
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}
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},
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// alive: We're handling multiple client connections - we're alive
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function() {
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return true;
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}
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);
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this.rpccon.multiport=true;
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this.verbose=options.verbose||0;
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this.warned=0;
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this.last=undefined;
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this.stats=this.rpccon.stats;
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// Transfer of multi-part messages?
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this.multipart=true;
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};
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Server.prototype.add_host = function (msg,port) {
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var ipid=msg.ip+msg.ipport;
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// client in TWOCHAN mode, save connection record
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if (this.hosts[ipid]) { this.ports[port]=this.hosts[ipid]; this.hosts[ipid].timeout=5000; }
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else
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this.hosts[ipid]=
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this.ports[port]=
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{ip:msg.ip,ipport:msg.ipport,nokeepalive:msg.nokeepalive,timeout:5000};
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}
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/** Broadcast a message to all clients
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*
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*/
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Server.prototype.broadcast = function (msg) {
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var self=this,
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res=0;
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Io.log(((log+this.verbose) < 2) || ('[BTPS] broadcast message'));
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if (msg.status==undefined) msg.status='EOK';
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for(var i in this.hosts) {
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if (this.hosts[i]!=undefined) {
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res++;
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self.send(self.reply(this.hosts[i],msg));
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}
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}
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if (res) this.stats.op_broadcast++;
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return res;
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}
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/** Client-App collet request (send pending and queued TRANSREQ/TRANSREP/LOOKUP messages)
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* Used only in ONECHAN mode!!
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*
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*/
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Server.prototype.collect = function (msg) { // HTTP Callback handler
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var res,
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self=this,
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timeout=(msg.timeout != undefined) ? (Perv.int_of_string(msg.timeout)) : 0;
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if (timeout) msg.timeout=timeout;
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this.stats.op_forward++;
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/*
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** 1. Forward TRANS message requests if there are pending requests for the host port.
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** 2. Forward TRANS message replies if there are pending replies for the host port.
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** 3. Forward LOOKUP messages (broadcast)
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** 4. Forward IAMHERE messages
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** If there are actually no messages, add this request to the request queue (if timeout <>0).
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*/
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/*
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** Forward all pending transaction requests and replies...
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*/
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Io.log(((log+self.verbose) < 2) || ('[BTPS] collect for client host ' + Net.Print.port(msg.hostport)+
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' #rpcio='+ Array.length(this.rpcio_queue)));
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res=this.schedule_client(msg,true);
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if (res && msg.timeout)
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this.client_queue.push(msg);
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};
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/** Create a forward/reply message from a rpcio object
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*
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*/
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Server.prototype.format = function (rpcio) {
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var msg,obj,buf;
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switch (rpcio.operation) {
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case Rpc.Operation.TRANSREQ:
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obj = rpcio.to_json('simple');
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msg={rpc:'trans',hostport:rpcio.hostport,sendport:rpcio.sendport,
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tid:rpcio.tid,hop:rpcio.hop,header:obj.header,data:obj.data};
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break;
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case Rpc.Operation.TRANSREP:
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obj = rpcio.to_json('simple');
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msg={rpc:'reply',hostport:rpcio.hostport,sendport:rpcio.sendport,
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tid:rpcio.tid,hop:rpcio.hop,header:obj.header,data:obj.data};
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break;
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case Rpc.Operation.LOOKUP:
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buf = Buf.Buffer();
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Buf.buf_put_port(buf, rpcio.header.h_port);
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msg={rpc:'lookup',hostport:rpcio.hostport,
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hop:rpcio.hop,data:Buf.buf_to_hex(buf)};
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break;
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case Rpc.Operation.IAMHERE:
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buf = Buf.Buffer();
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Buf.buf_put_port(buf, rpcio.header.h_port);
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msg={rpc:'iamhere',hostport:rpcio.hostport,sendport:rpcio.sendport,
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hop:rpcio.hop,data:Buf.buf_to_hex(buf)};
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break;
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case Rpc.Operation.WHEREIS:
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buf = Buf.Buffer();
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msg={rpc:'whereis',hostport:rpcio.hostport,sendport:rpcio.sendport,
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hop:rpcio.hop};
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break;
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case Rpc.Operation.HEREIS:
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buf = Buf.Buffer();
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msg={rpc:'hereis',hostport:rpcio.hostport,sendport:rpcio.sendport,
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hop:rpcio.hop};
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break;
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}
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if (!msg) console.log(rpcio)
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return msg;
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}
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/** Client-App forwarding (send pending and queued TRANSREQ/TRANSREP/LOOKUP/IAMHERE messages)
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* Used only in TWOCHAN mode!! Called from router.
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*/
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Server.prototype.forward = function (msg) {
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var res=0,
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self=this;
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/*
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** 1. Forward TRANS message request if there are pending requests for the host port.
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** 2. Forward TRANS message reply if there are pending replies for the host port.
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** 3. Forward LOOKUP messages (broadcast)
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*/
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/*
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** Forward all pending transaction requests and replies...
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*/
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Io.log(((log+this.verbose) < 2) || (
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'[BTPS] forward to host ' + (msg.sendport?Net.Print.port(msg.sendport)+'? '+(this.ports[msg.sendport]!=undefined):
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'broadcast')
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));
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if (msg.status==undefined) msg.status='EOK';
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// console.log(msg)
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if (msg.sendport && this.ports[msg.sendport]) {
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res++;
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self.send(self.reply(this.ports[msg.sendport],msg));
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}
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if (res) this.stats.op_forward++;
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return res;
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};
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/** Initialize this server
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*
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*/
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Server.prototype.init = function (callback) {
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var self = this;
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this.router.add_conn(self.rpccon);
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};
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Server.prototype.log = function (v) {log=v};
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/** Create a reply message from a request message and a reply object.
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*
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*/
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Server.prototype.reply = function (msg,obj) {
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var reply={},
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p;
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if (msg.ipport) {
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// Client in TWOCAHN mode with reply channel
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reply.ip=msg.ip;
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reply.ipport=msg.ipport;
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if (msg.nokeepalive) reply.nokeepalive=true;
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} else {
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// client in ONECHAN mode, share request channel
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reply.socket=msg.socket;
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}
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for (p in obj) reply[p]=obj[p];
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if (msg.tid != undefined) reply.tid=msg.tid;
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switch (msg.type) {
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case 'alive':
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case 'ask':
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case 'notify':
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case 'request':
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reply.type=msg.type+'-reply'; break;
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}
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return reply;
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}
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/** Main client request entry point.
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*
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*/
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Server.prototype.request = function (msg) {
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var i,str,
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self=this,
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buf, rpcio, hdr, id;
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this.rpccon.stats.op_get++;
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Io.log(((log+self.verbose) < 2) || ('[BTPS] client request: ' + (msg.rpc||msg.type)+' from '+msg.ip+':'+msg.ipport));
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Io.log(((log+self.verbose) < 3) || ('[BTPS] client request: ' + util.inspect(msg)));
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if (this.multipart) Conn.decode(msg);
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if (msg.rpc != undefined) {
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switch (msg.rpc) {
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case 'lookup':
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/********************************
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** LOOKUP rpc message
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********************************/
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// hostport tid
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buf = Buf.Buffer(msg.data);
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// OK this.router.add_host(msg.hostport, this.rpccon.port);
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rpcio=self.router.pkt_get();
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rpcio.operation=Rpc.Operation.LOOKUP;
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rpcio.connport=this.rpccon.port;
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rpcio.hostport=msg.hostport;
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rpcio.hop=msg.hop;
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//rpcio.sendport=self.router.hostport;
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rpcio.header.h_port=Buf.buf_get_port(buf);;
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this.router.route(rpcio);
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// this.send(this.reply(msg,{status:'EOK'}));
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break;
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case 'iamhere':
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/********************************
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** IAMHERE rpc message
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********************************/
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buf = Buf.Buffer(msg.data);
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this.router.add_host(msg.hostport, this.rpccon.port);
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rpcio=this.router.pkt_get();
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rpcio.operation=Rpc.Operation.IAMHERE;
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rpcio.connport=this.rpccon.port;
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rpcio.hostport=msg.hostport;
|
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rpcio.sendport=msg.sendport;
|
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rpcio.header.h_port=Buf.buf_get_port(buf);;
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rpcio.hop=msg.hop;
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this.router.route(rpcio);
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// this.send(this.reply(msg,{status:'EOK'}));
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break;
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case 'trans':
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/**************************************************
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** RPC TRANS message (Client- /Browser App. transaction request)
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*************************************************/
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|
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rpcio = self.router.pkt_get();
|
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buf = Buf.Buffer(msg.header);
|
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Buf.buf_get_hdr(buf, rpcio.header);
|
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Io.log((log < 2) || (('[BTPS] trans header: ' + Net.Print.header(rpcio.header))));
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rpcio.init(Rpc.Operation.TRANSREQ, rpcio.header, msg.data);
|
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rpcio.context=undefined; // rpc not from here!
|
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rpcio.tid = msg.tid;
|
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rpcio.hostport = msg.hostport;
|
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rpcio.sendport = msg.sendport;
|
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rpcio.hop=msg.hop;
|
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rpcio.connport=this.rpccon.port;
|
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|
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if (msg.ipport)
|
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// client in TWOCHAN mode
|
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this.add_host(msg,msg.hostport);
|
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// else
|
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// client in ONECHAN mode
|
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// this.send(self.reply(msg,{status:'EWOULDBLOCK'}));
|
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|
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this.router.add_host(rpcio.hostport,self.rpccon.port);
|
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this.router.route(rpcio);
|
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break;
|
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case 'reply':
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/*************************
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* RPC Transaction Reply
|
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************************/
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|
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/*
|
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** Reply for a transaction must be forwarded to the transaction origin collected by the source host application and
|
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** the next http get/?rpc=request request.
|
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*/
|
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// New transaction request from client app., add it to the transaction queue.
|
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buf = Buf.Buffer(msg.header);
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rpcio = this.router.pkt_get();
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Buf.buf_get_hdr(buf,rpcio.header);
|
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rpcio.init(Rpc.Operation.TRANSREP, rpcio.header, msg.data);
|
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rpcio.context=undefined; // rpc not from here!
|
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rpcio.tid = msg.tid;
|
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rpcio.hostport = msg.hostport;
|
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rpcio.sendport = msg.sendport;
|
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rpcio.hop=msg.hop;
|
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rpcio.connport = this.rpccon.port;
|
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Io.log(((log+this.verbose) < 2)||('[BTPS] reply: hostport=' + Net.Print.port(msg.hostport) +
|
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' sendport='+Net.Print.port(msg.sendport) +
|
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' tid=' + msg.tid + ' srvport=' + Net.Print.port(rpcio.header.h_port)));
|
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// ?? this.router.add_host(msg.hostport, this.rpccon.port);
|
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this.router.route(rpcio);
|
||||
//res.
|
||||
// ONECHAN mode only?
|
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// this.send(this.reply(msg,{status:'EOK'}));
|
||||
break;
|
||||
default:
|
||||
this.send(self.reply(msg,{status:'EINVALID'}));
|
||||
}
|
||||
} else if (msg.type != undefined) {
|
||||
switch (msg.type) {
|
||||
case 'alive':
|
||||
/***************************
|
||||
** ALIVE message request
|
||||
***************************/
|
||||
this.rpccon.stats.op_alive++;
|
||||
|
||||
buf=Buf.Buffer();
|
||||
|
||||
if (this.verbose && this.router.lookup_host(msg.hostport)==undefined)
|
||||
Io.out('[BTPS] ALIVE! Adding remote host ' +
|
||||
Net.Print.port(msg.hostport) + ' ip=' + msg.ip + (msg.ipport!='undefined'?(' ipport=' + msg.ipport):''));
|
||||
this.router.add_host(msg.hostport,this.rpccon.port);
|
||||
if (msg.ipport)
|
||||
// client in TWOCHAN mode
|
||||
this.add_host(msg,msg.hostport);
|
||||
//res.
|
||||
|
||||
Buf.buf_put_port(buf,this.hostport);
|
||||
this.send(this.reply(msg,{status:'EOK',data:Buf.buf_to_hex(buf)}));
|
||||
break;
|
||||
case 'ask':
|
||||
/***************************
|
||||
** ASK message request
|
||||
***************************/
|
||||
this.rpccon.stats.op_ask++;
|
||||
buf=Buf.Buffer();
|
||||
//console.log(self.env[msg.xname]);
|
||||
Buf.buf_put_string(buf,this.env[msg.xname]||'undefined');
|
||||
this.send(this.reply(msg,{status:'EOK', data:Buf.buf_to_hex(buf)}));
|
||||
break;
|
||||
case 'notify':
|
||||
/***************************
|
||||
** NOTIFY message request
|
||||
***************************/
|
||||
this.rpccon.stats.op_notify++;
|
||||
this.env[msg.xname]=msg.xvalue;
|
||||
//console.log(self.env[msg.xname]);
|
||||
this.send(this.reply(msg,{status:'EOK'}));
|
||||
break;
|
||||
case 'request':
|
||||
/**************************************************
|
||||
** RPC collect request (ONECHAN mode only)
|
||||
*************************************************/
|
||||
// Used only in ONECHAN mode!
|
||||
if (msg.ipport) // client in TWOCHAN mode
|
||||
this.send(this.reply(msg,{status:'EINVALID'}));
|
||||
else
|
||||
this.collect(msg);
|
||||
break;
|
||||
default:
|
||||
this.send(self.reply(msg,{status:'EINVALID'}));
|
||||
}
|
||||
} else
|
||||
this.send(self.reply(msg,{status:'EINVALID'}));
|
||||
};
|
||||
|
||||
|
||||
/*
|
||||
** Schedule all pending client-side requests if there is matching input.
|
||||
** Called from router function. Lock required!
|
||||
*/
|
||||
|
||||
Server.prototype.schedule = function () {
|
||||
var self = this;
|
||||
|
||||
if (self.lock) return;
|
||||
this.rpccon.stats.op_schedule++;
|
||||
Io.log(((log+self.verbose)<2) || ('[BTPS] schedule #clients='+this.client_queue.length+' .. '));
|
||||
|
||||
this.lock = true;
|
||||
this.client_queue = Array.filter(self.client_queue, function (client) {
|
||||
/*
|
||||
* Forward all matching pending transaction requests and replies...
|
||||
*/
|
||||
Io.log(((log+self.verbose) < 2) || ('[BTPS] schedule for client host ' + Net.Print.port(client.hostport)+
|
||||
' #rpcio='+ Array.length(self.rpcio_queue)));
|
||||
return self.schedule_client(client,true);
|
||||
});
|
||||
this.lock = false;
|
||||
};
|
||||
|
||||
/** Schedule pending transaction replies for a client (message)
|
||||
*
|
||||
*/
|
||||
|
||||
Server.prototype.schedule_client = function (client /* msg */, discard) {
|
||||
var msgn = 0,
|
||||
self = this,
|
||||
data = [],
|
||||
hostport = client.hostport,
|
||||
len=this.rpcio_queue.length,
|
||||
buf;
|
||||
|
||||
this.rpcio_queue = Array.filter(this.rpcio_queue, function (rpcio) {
|
||||
var hostport2;
|
||||
switch (rpcio.operation) {
|
||||
case Rpc.Operation.TRANSREQ:
|
||||
case Rpc.Operation.TRANSREP:
|
||||
hostport2 = self.router.lookup_port(rpcio.header.h_port);
|
||||
if ((hostport2 && rpcio.operation==Rpc.Operation.TRANSREQ && Net.port_cmp(hostport,hostport2)) ||
|
||||
(rpcio.sendport && rpcio.operation==Rpc.Operation.TRANSREP && Net.port_cmp(hostport,rpcio.sendport)) ||
|
||||
(rpcio.sendport && rpcio.operation==Rpc.Operation.TRANSREQ && Net.port_cmp(hostport,rpcio.sendport))) {
|
||||
data.push(rpcio.to_json('extended'));
|
||||
msgn++;
|
||||
if (rpcio.callback) {rpcio.callback(Net.Status.STD_OK,rpcio); rpcio.callback=undefined;};
|
||||
return false;
|
||||
} else return true;
|
||||
break;
|
||||
|
||||
/*
|
||||
** Add all pending server port LOOKUP requests that are broadcast messages! ...
|
||||
** Forward a LOOKUP of a server port search only once to a client host!
|
||||
** Do not broadcast a LOOKUP to the initiator host (hostport)!
|
||||
*/
|
||||
case Rpc.Operation.LOOKUP:
|
||||
if (rpcio.cache[hostport]==undefined && !Net.port_cmp(hostport,rpcio.hostport)) {
|
||||
Io.log((self.router.monitor < 2) || ('[BTPS] schedule: lookup '+Rpc.Print.rpcio(rpcio)));
|
||||
rpcio.cache[hostport]=1;
|
||||
buf = Buf.Buffer();
|
||||
Buf.buf_put_port(buf, rpcio.header.h_port);
|
||||
data.push({
|
||||
rpc:'lookup',
|
||||
hostport:rpcio.hostport,
|
||||
data:Buf.buf_to_hex(buf)
|
||||
});
|
||||
// Broadcast message! rpcio.callback handled in garbage collector
|
||||
msgn++;
|
||||
}
|
||||
return true;
|
||||
break;
|
||||
|
||||
case Rpc.Operation.IAMHERE:
|
||||
if (Net.port_cmp(hostport,rpcio.sendport)) {
|
||||
buf = Buf.Buffer();
|
||||
Buf.buf_put_port(buf, rpcio.header.h_port);
|
||||
data.push({
|
||||
rpc:'iamhere',
|
||||
hostport:rpcio.hostport,
|
||||
sendport:rpcio.sendport,
|
||||
data:Buf.buf_to_hex(buf)
|
||||
});
|
||||
msgn++;
|
||||
if (rpcio.callback) {rpcio.callback(Net.Status.STD_OK,rpcio); rpcio.callback=undefined;};
|
||||
return false;
|
||||
} else return true;
|
||||
break;
|
||||
}
|
||||
return true;
|
||||
});
|
||||
|
||||
Io.log(((log+self.verbose) < 2) || ('[BTPS] schedule_client for host ' + Net.Print.port(hostport)+ ' ['+len+'] '+util.inspect(data)));
|
||||
|
||||
if (msgn>0) {
|
||||
self.send(self.reply(client,{status:'EOK',data:data}));
|
||||
return false;
|
||||
} else if (client.timeout<=0) {
|
||||
self.send(self.reply(client,{status:'ENOENTR'}));
|
||||
return false;
|
||||
} else {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/** Send a message to a destination
|
||||
*
|
||||
*/
|
||||
// function send(repsonse:socket,data:string)
|
||||
Server.prototype.send = function (msg) {
|
||||
var client,
|
||||
self=this,
|
||||
socket,
|
||||
data,ipid;
|
||||
//response.writeHead(200, {'Content-Type': 'text/plain; charset=utf8'});
|
||||
//response.writeHead(200);
|
||||
this.rpccon.stats.op_send++;
|
||||
if (msg.socket)
|
||||
// client in ONECHAN mode
|
||||
{socket=msg.socket; msg.socket=undefined;};
|
||||
if (this.multipart) Conn.encode(msg);
|
||||
|
||||
Io.log(((log+this.verbose)<2)||('[BTPS] send ['+util.inspect(msg)+'] -> '+
|
||||
(socket?'socket':(msg.ip+':'+msg.ipport))));
|
||||
if (socket) {
|
||||
// client in ONECHAN mode
|
||||
data = JSON.stringify(msg);
|
||||
// console.log(data);
|
||||
if (this.multipart) socket.write(data+Conn.EOM);
|
||||
else socket.write(data);
|
||||
this.warned=0;
|
||||
} else if (msg.ip) {
|
||||
// client in TWOCHAN mode
|
||||
|
||||
data = JSON.stringify(msg);
|
||||
ipid=msg.ip+msg.ipport;
|
||||
if (self.hosts[ipid] && self.hosts[ipid].socket) {
|
||||
// use cached socket
|
||||
// console.log('using socket');
|
||||
client=self.hosts[ipid].socket;
|
||||
if (self.multipart) client.write(data+Conn.EOM);
|
||||
else client.write(data);
|
||||
self.hosts[ipid].timeout=5000;
|
||||
} else {
|
||||
client = net.connect(msg.ipport,msg.ip, function() {
|
||||
// console.log('connected to client');
|
||||
self.warned=0;
|
||||
client.setNoDelay(true);
|
||||
if (self.multipart) client.write(data+Conn.EOM);
|
||||
else client.write(data);
|
||||
if (!self.keepalive || msg.nokeepalive) {
|
||||
//client.end();
|
||||
client.destroy();
|
||||
client=undefined;
|
||||
}
|
||||
if (client && self.hosts[ipid]) {
|
||||
self.hosts[ipid].socket=client;
|
||||
self.hosts[ipid].timeout=5000;
|
||||
} else if (client) self_add_host(msg,msg.sendport);
|
||||
});
|
||||
client.on('error', function (e) {
|
||||
if (self.warned<2) {
|
||||
Io.out('[BTPS] Communication error to ' +msg.ip+':'+msg.ipport+(self.warned==1?' (more)':'')+' : '+e);
|
||||
self.warned++;
|
||||
}
|
||||
});
|
||||
}
|
||||
} else Io.warn('[BTPS] Cannot send message: Neither return IP nor request socket for: '+util.inspect(msg));
|
||||
};
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
/**
|
||||
*
|
||||
* @param {number} [interval]
|
||||
*/
|
||||
Server.prototype.start = function (interval) {
|
||||
var self = this;
|
||||
// Service client requests
|
||||
this.server = net.createServer(function (socket){
|
||||
|
||||
// console.log(socket);
|
||||
// console.log('Connection ..');
|
||||
socket.setNoDelay(true);
|
||||
socket.on('data', function(data) {
|
||||
var req,part,parts;
|
||||
Io.log(((log+self.verbose)<2)||('[BTPS] Received: ' + data));
|
||||
if (self.multipart) parts=Conn.splitData(data);
|
||||
else parts=[data];
|
||||
if (self.last) parts[0]=self.last+parts[0];
|
||||
if (Array.last(parts) != '') self.last=Array.last(parts); else self.last=undefined;
|
||||
|
||||
// console.log(parts)
|
||||
|
||||
for(part in parts) {
|
||||
if (parts[part]=='') continue;
|
||||
req = JSON.parse(parts[part]);
|
||||
if (self.multipart) Conn.decode(req);
|
||||
if (!req.ipport) req.socket=socket; // client is in ONECHAN mode
|
||||
else if (!self.keepalive || req.nokeepalive)
|
||||
// socket.end(''); // client is in TWOCHAN mode TODO keepalive?
|
||||
socket.destroy();
|
||||
self.request(req);
|
||||
}
|
||||
});
|
||||
socket.on("error", function (er) {
|
||||
if (er != 'Error: This socket has been ended by the other party')
|
||||
Io.out('[BTPS] Communication error on *:' + self.srv_ipport+' : '+er);
|
||||
});
|
||||
socket.on('close', function(data) {
|
||||
// console.log('CLOSED: ' + socket.remoteAddress +' '+ socket.remotePort);
|
||||
});
|
||||
});
|
||||
if (!interval) interval=1000;
|
||||
/*
|
||||
** Start a client service and garbage collector for blocked client-side transactions (self.client_queue)
|
||||
*/
|
||||
Sch.AddTimer(interval, 'BTPS Garbage Collector', function (context) {
|
||||
var h,p, host, port, time;
|
||||
Io.log(((log+self.verbose)<4)||('[BTPS] Garbage Collector'));
|
||||
if (!self.lock) {
|
||||
self.lock = true;
|
||||
self.client_queue = Array.filter(self.client_queue, function (client) {
|
||||
var res = self.schedule_client(client,false /*?*/);
|
||||
client.timeout -= interval;
|
||||
return res;
|
||||
});
|
||||
for (h in self.hosts) {
|
||||
host=self.hosts[h];
|
||||
// console.log(self.hosts[p])
|
||||
if (self.hosts[h]) {
|
||||
|
||||
host.timeout = host.timeout - interval;
|
||||
if (host.timeout <= 0) {
|
||||
Io.log(((log+self.verbose)<2)||('[BTPS] Host cache: Removing host '+
|
||||
host.ip+':'+host.ipport));
|
||||
self.hosts[h]=undefined;
|
||||
for (p in self.ports) {
|
||||
port=self.ports[p];
|
||||
if (port) {
|
||||
if (host.ip==port.ip && host.ipport==port.ipport) {
|
||||
self.ports[p]=undefined;
|
||||
Io.log(((log+self.verbose)<2)||('[BTPS] Host cache: Removing port '+Net.Print.port(p)+' for host '+
|
||||
host.ip+':'+host.ipport));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
time=Sch.GetTime();
|
||||
self.rpcio_queue = Array.filter(self.rpcio_queue, function (rpcio) {
|
||||
if (rpcio.timeout > 0 && rpcio.timeout <= time) {
|
||||
Io.log(((log+self.verbose)<2)||('[BTPS] RPCIO cache: Removing '+
|
||||
Rpc.Print.rpcio(rpcio)));
|
||||
|
||||
if (rpcio.callback) { rpcio.callback(
|
||||
rpcio.operation==Rpc.Operation.LOOKUP?Net.Status.STD_OK:Net.Status.RPC_FAILURE,
|
||||
rpcio); rpcio.callback=undefined;};
|
||||
return false;
|
||||
}
|
||||
else return true;
|
||||
});
|
||||
|
||||
self.lock = false;
|
||||
} else {
|
||||
context.blocked=false;
|
||||
context.timer=Sch.time;
|
||||
Sch.ScheduleNext();
|
||||
}
|
||||
});
|
||||
this.server.listen(this.srv_ipport, function() {
|
||||
// console.log('[BTPS] Listening on *:' + self.server.address().port+ ' TCPNET in mode '+self.mode+
|
||||
// (self.keepalive?' KEEPALIVE':''));
|
||||
console.log('[BTPS] Listening on *:' + self.server.address().port+ ' TCPNET in mode '+self.mode);
|
||||
});
|
||||
};
|
||||
|
||||
Server.prototype.stop = function () {
|
||||
Sch.RemoveTimer('BTPS Garbage Collector');
|
||||
}
|
||||
|
||||
module.exports = {
|
||||
/** RCP Broker Server for client-capable-only applications
|
||||
*
|
||||
*/
|
||||
// typeof options = {hostport:port,srv_ip,srv_ipport,router,verbose?,env?:{}}
|
||||
Mode: Mode,
|
||||
Server: function(options) {
|
||||
var obj = new Server(options);
|
||||
Object.preventExtensions(obj);
|
||||
return obj;
|
||||
}
|
||||
};
|
||||
Loading…
Reference in New Issue
Block a user