rhea
Version:
reactive AMQP 1.0 library
1 lines • 218 kB
JavaScript
require=function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r}()({1:[function(require,module,exports){(function(process,Buffer){(function(){"use strict";var errors=require("./errors.js");var frames=require("./frames.js");var log=require("./log.js");var sasl=require("./sasl.js");var util=require("./util.js");var EndpointState=require("./endpoint.js");var Session=require("./session.js");var Transport=require("./transport.js");var fs=require("fs");var os=require("os");var path=require("path");var net=require("net");var tls=require("tls");var EventEmitter=require("events").EventEmitter;var AMQP_PROTOCOL_ID=0;function find_connect_config(){var paths;if(process.env.MESSAGING_CONNECT_FILE){paths=[process.env.MESSAGING_CONNECT_FILE]}else{paths=[process.cwd(),path.join(os.homedir(),".config/messaging"),"/etc/messaging"].map(function(base){return path.join(base,"/connect.json")})}for(var i=0;i<paths.length;i++){if(fs.existsSync(paths[i])){var obj=JSON.parse(fs.readFileSync(paths[i],"utf8"));log.config("using config from %s: %j",paths[i],obj);return obj}}return{}}function get_default_connect_config(){var config=find_connect_config();var options={};if(config.scheme==="amqps")options.transport="tls";if(config.host)options.host=config.host;if(config.port==="amqp")options.port=5672;else if(config.port==="amqps")options.port=5671;else options.port=config.port;if(!(config.sasl&&config.sasl.enabled===false)){if(config.user)options.username=config.user;else options.username="anonymous";if(config.password)options.password=config.password;if(config.sasl_mechanisms)options.sasl_mechanisms=config.sasl_mechanisms}if(config.tls){if(config.tls.key)options.key=fs.readFileSync(config.tls.key);if(config.tls.cert)options.cert=fs.readFileSync(config.tls.cert);if(config.tls.ca)options.ca=[fs.readFileSync(config.tls.ca)];if(config.verify===false||config.tls.verify===false)options.rejectUnauthorized=false}if(options.transport==="tls"){options.servername=options.host}return options}function get_socket_id(socket){if(socket.get_id_string)return socket.get_id_string();return socket.localAddress+":"+socket.localPort+" -> "+socket.remoteAddress+":"+socket.remotePort}function session_per_connection(conn){var ssn=null;return{get_session:function(){if(!ssn){ssn=conn.create_session();ssn.observers.on("session_close",function(){ssn=null});ssn.begin()}return ssn}}}function restrict(count,f){if(count){var current=count;var reset;return function(successful_attempts){if(reset!==successful_attempts){current=count;reset=successful_attempts}if(current--)return f(successful_attempts);else return-1}}else{return f}}function backoff(initial,max){var delay=initial;var reset;return function(successful_attempts){if(reset!==successful_attempts){delay=initial;reset=successful_attempts}var current=delay;var next=delay*2;delay=max>next?next:max;return current}}function get_connect_fn(options){if(options.transport===undefined||options.transport==="tcp"){return net.connect}else if(options.transport==="tls"||options.transport==="ssl"){return tls.connect}else{throw Error("Unrecognised transport: "+options.transport)}}function connection_details(options){var details={};details.connect=options.connect?options.connect:get_connect_fn(options);details.host=options.host?options.host:"localhost";details.port=options.port?options.port:5672;details.options=options;return details}var aliases=["container_id","hostname","max_frame_size","channel_max","idle_time_out","outgoing_locales","incoming_locales","offered_capabilities","desired_capabilities","properties"];function remote_property_shortcut(name){return function(){return this.remote.open?this.remote.open[name]:undefined}}function connection_fields(fields){var o={};aliases.forEach(function(name){if(fields[name]!==undefined){o[name]=fields[name]}});return o}function set_reconnect(reconnect,connection){if(typeof reconnect==="boolean"){if(reconnect){var initial=connection.get_option("initial_reconnect_delay",100);var max=connection.get_option("max_reconnect_delay",6e4);connection.options.reconnect=restrict(connection.get_option("reconnect_limit"),backoff(initial,max))}else{connection.options.reconnect=false}}else if(typeof reconnect==="number"){var fixed=connection.options.reconnect;connection.options.reconnect=restrict(connection.get_option("reconnect_limit"),function(){return fixed})}}var conn_counter=1;var Connection=function(options,container){this.options={};if(options){for(var k in options){this.options[k]=options[k]}if((options.transport==="tls"||options.transport==="ssl")&&options.servername===undefined&&options.host!==undefined){this.options.servername=options.host}}else{this.options=get_default_connect_config()}this.container=container;if(!this.options.id){this.options.id="connection-"+conn_counter++}if(!this.options.container_id){this.options.container_id=container?container.id:util.generate_uuid()}if(!this.options.connection_details){var self=this;this.options.connection_details=function(){return connection_details(self.options)}}var reconnect=this.get_option("reconnect",true);set_reconnect(reconnect,this);this.registered=false;this.state=new EndpointState;this.local_channel_map={};this.remote_channel_map={};this.local={};this.remote={};this.local.open=frames.open(connection_fields(this.options));this.local.close=frames.close({});this.session_policy=session_per_connection(this);this.amqp_transport=new Transport(this.options.id,AMQP_PROTOCOL_ID,frames.TYPE_AMQP,this);this.sasl_transport=undefined;this.transport=this.amqp_transport;this.conn_established_counter=0;this.heartbeat_out=undefined;this.heartbeat_in=undefined;this.abort_idle=false;this.socket_ready=false;this.scheduled_reconnect=undefined;this.default_sender=undefined;this.closed_with_non_fatal_error=false;var self=this;aliases.forEach(function(alias){Object.defineProperty(self,alias,{get:remote_property_shortcut(alias)})});Object.defineProperty(this,"error",{get:function(){return this.remote.close?this.remote.close.error:undefined}})};Connection.prototype=Object.create(EventEmitter.prototype);Connection.prototype.constructor=Connection;Connection.prototype.dispatch=function(name){log.events("[%s] Connection got event: %s",this.options.id,name);if(this.listeners(name).length){EventEmitter.prototype.emit.apply(this,arguments);return true}else if(this.container){return this.container.dispatch.apply(this.container,arguments)}else{return false}};Connection.prototype._disconnect=function(){this.state.disconnected();for(var k in this.local_channel_map){this.local_channel_map[k]._disconnect()}this.socket_ready=false};Connection.prototype._reconnect=function(){if(this.abort_idle){this.abort_idle=false;this.local.close.error=undefined;this.state=new EndpointState;this.state.open()}this.state.reconnect();this._reset_remote_state()};Connection.prototype._reset_remote_state=function(){this.amqp_transport=new Transport(this.options.id,AMQP_PROTOCOL_ID,frames.TYPE_AMQP,this);this.sasl_transport=undefined;this.transport=this.amqp_transport;this.remote={};this.remote_channel_map={};var localChannelMap=this.local_channel_map;for(var k in localChannelMap){localChannelMap[k]._reconnect()}};Connection.prototype.connect=function(){this.is_server=false;this.abort_idle=false;this._reset_remote_state();this._connect(this.options.connection_details(this.conn_established_counter));this.open();return this};Connection.prototype.reconnect=function(){this.scheduled_reconnect=undefined;log.reconnect("[%s] reconnecting...",this.options.id);this._reconnect();this._connect(this.options.connection_details(this.conn_established_counter));process.nextTick(this._process.bind(this));return this};Connection.prototype.set_reconnect=function(reconnect){set_reconnect(reconnect,this)};Connection.prototype._connect=function(details){if(details.connect){this.init(details.connect(details.port,details.host,details.options,this.connected.bind(this)))}else{this.init(get_connect_fn(details)(details.port,details.host,details.options,this.connected.bind(this)))}return this};Connection.prototype.accept=function(socket){this.is_server=true;log.io("[%s] client accepted: %s",this.id,get_socket_id(socket));this.socket_ready=true;return this.init(socket)};Connection.prototype.abort_socket=function(socket){if(socket===this.socket){log.io("[%s] aborting socket",this.options.id);this.socket.end();if(this.socket.removeAllListeners){this.socket.removeAllListeners("data");this.socket.removeAllListeners("error");this.socket.removeAllListeners("end")}if(typeof this.socket.destroy==="function"){this.socket.destroy()}this._disconnected()}};Connection.prototype.init=function(socket){this.socket=socket;if(this.get_option("tcp_no_delay",false)&&this.socket.setNoDelay){this.socket.setNoDelay(true)}this.socket.on("data",this.input.bind(this));this.socket.on("error",this.on_error.bind(this));this.socket.on("end",this.eof.bind(this));if(this.is_server){var mechs;if(this.container&&Object.getOwnPropertyNames(this.container.sasl_server_mechanisms).length){mechs=this.container.sasl_server_mechanisms}if(this.socket.encrypted&&this.socket.authorized&&this.get_option("enable_sasl_external",false)){mechs=sasl.server_add_external(mechs?util.clone(mechs):{})}if(mechs){if(mechs.ANONYMOUS!==undefined&&!this.get_option("require_sasl",false)){this.sasl_transport=new sasl.Selective(this,mechs)}else{this.sasl_transport=new sasl.Server(this,mechs)}}else{if(!this.get_option("disable_sasl",false)){var anon=sasl.server_mechanisms();anon.enable_anonymous();this.sasl_transport=new sasl.Selective(this,anon)}}}else{var mechanisms=this.get_option("sasl_mechanisms");if(!mechanisms){var username=this.get_option("username");var password=this.get_option("password");var token=this.get_option("token");if(username){mechanisms=sasl.client_mechanisms();if(password)mechanisms.enable_plain(username,password);else if(token)mechanisms.enable_xoauth2(username,token);else mechanisms.enable_anonymous(username)}}if(this.socket.encrypted&&this.options.cert&&this.get_option("enable_sasl_external",false)){if(!mechanisms)mechanisms=sasl.client_mechanisms();mechanisms.enable_external()}if(mechanisms){this.sasl_transport=new sasl.Client(this,mechanisms,this.options.sasl_init_hostname||this.options.servername||this.options.host)}}this.transport=this.sasl_transport?this.sasl_transport:this.amqp_transport;return this};Connection.prototype.attach_sender=function(options){return this.session_policy.get_session().attach_sender(options)};Connection.prototype.open_sender=Connection.prototype.attach_sender;Connection.prototype.attach_receiver=function(options){if(this.get_option("tcp_no_delay",true)&&this.socket.setNoDelay){this.socket.setNoDelay(true)}return this.session_policy.get_session().attach_receiver(options)};Connection.prototype.open_receiver=Connection.prototype.attach_receiver;Connection.prototype.get_option=function(name,default_value){if(this.options[name]!==undefined)return this.options[name];else if(this.container)return this.container.get_option(name,default_value);else return default_value};Connection.prototype.send=function(msg){if(this.default_sender===undefined){this.default_sender=this.open_sender({target:{}})}return this.default_sender.send(msg)};Connection.prototype.connected=function(){this.socket_ready=true;this.conn_established_counter++;log.io("[%s] connected %s",this.options.id,get_socket_id(this.socket));this.output()};Connection.prototype.sasl_failed=function(text,condition){this.transport_error=new errors.ConnectionError(text,condition?condition:"amqp:unauthorized-access",this);this._handle_error();this.socket.end()};Connection.prototype._is_fatal=function(error_condition){var all_errors_non_fatal=this.get_option("all_errors_non_fatal",false);if(all_errors_non_fatal){return false}else{var non_fatal=this.get_option("non_fatal_errors",["amqp:connection:forced"]);return non_fatal.indexOf(error_condition)<0}};Connection.prototype._handle_error=function(){var error=this.get_error();if(error){var handled=this.dispatch("connection_error",this._context({error:error}));handled=this.dispatch("connection_close",this._context({error:error}))||handled;if(!this._is_fatal(error.condition)){if(this.state.local_open){this.closed_with_non_fatal_error=true}}else if(!handled){this.dispatch("error",new errors.ConnectionError(error.description,error.condition,this))}return true}else{return false}};Connection.prototype.get_error=function(){if(this.transport_error)return this.transport_error;if(this.remote.close&&this.remote.close.error){return new errors.ConnectionError(this.remote.close.error.description,this.remote.close.error.condition,this)}return undefined};Connection.prototype._get_peer_details=function(){var s="";if(this.remote.open&&this.remote.open.container){s+=this.remote.open.container+" "}if(this.remote.open&&this.remote.open.properties){s+=JSON.stringify(this.remote.open.properties)}return s};Connection.prototype.output=function(){try{if(this.socket&&this.socket_ready){if(this.heartbeat_out)clearTimeout(this.heartbeat_out);this.transport.write(this.socket);if((this.is_closed()&&this.state.has_settled()||this.abort_idle||this.transport_error)&&!this.transport.has_writes_pending()){this.socket.end()}else if(this.is_open()&&this.remote.open.idle_time_out){this.heartbeat_out=setTimeout(this._write_frame.bind(this),this.remote.open.idle_time_out/2)}if(this.local.open.idle_time_out&&this.heartbeat_in===undefined){this.heartbeat_in=setTimeout(this.idle.bind(this),this.local.open.idle_time_out)}}}catch(e){this.saved_error=e;if(e.name==="ProtocolError"){console.error("["+this.options.id+"] error on write: "+e+" "+this._get_peer_details()+" "+e.name);this.dispatch("protocol_error",e)||console.error("["+this.options.id+"] error on write: "+e+" "+this._get_peer_details())}else{this.dispatch("error",e)}this.socket.end()}};function byte_to_hex(value){if(value<16)return"0x0"+Number(value).toString(16);else return"0x"+Number(value).toString(16)}function buffer_to_hex(buffer){var bytes=[];for(var i=0;i<buffer.length;i++){bytes.push(byte_to_hex(buffer[i]))}return bytes.join(",")}Connection.prototype.input=function(buff){var buffer;try{if(this.heartbeat_in)clearTimeout(this.heartbeat_in);log.io("[%s] read %d bytes",this.options.id,buff.length);if(this.previous_input){buffer=Buffer.concat([this.previous_input,buff],this.previous_input.length+buff.length);this.previous_input=null}else{buffer=buff}var read=this.transport.read(buffer,this);if(read<buffer.length){this.previous_input=buffer.slice(read)}if(this.local.open.idle_time_out)this.heartbeat_in=setTimeout(this.idle.bind(this),this.local.open.idle_time_out);if(this.transport.has_writes_pending()){this.output()}else if(this.is_closed()&&this.state.has_settled()){this.socket.end()}else if(this.is_open()&&this.remote.open.idle_time_out&&!this.heartbeat_out){this.heartbeat_out=setTimeout(this._write_frame.bind(this),this.remote.open.idle_time_out/2)}}catch(e){this.saved_error=e;if(e.name==="ProtocolError"){this.dispatch("protocol_error",e)||console.error("["+this.options.id+"] error on read: "+e+" "+this._get_peer_details()+" (buffer:"+buffer_to_hex(buffer)+")")}else{this.dispatch("error",e)}this.socket.end()}};Connection.prototype.idle=function(){if(!this.is_closed()){this.abort_idle=true;this.closed_with_non_fatal_error=true;this.local.close.error={condition:"amqp:resource-limit-exceeded",description:"max idle time exceeded"};this.close();setTimeout(this.abort_socket.bind(this,this.socket),1e3)}};Connection.prototype.on_error=function(e){this._disconnected(e)};Connection.prototype.eof=function(e){var error=e||this.saved_error;this.saved_error=undefined;this._disconnected(error)};Connection.prototype._disconnected=function(error){if(this.heartbeat_out){clearTimeout(this.heartbeat_out);this.heartbeat_out=undefined}if(this.heartbeat_in){clearTimeout(this.heartbeat_in);this.heartbeat_in=undefined}var was_closed_with_non_fatal_error=this.closed_with_non_fatal_error;if(this.closed_with_non_fatal_error){this.closed_with_non_fatal_error=false;if(this.options.reconnect)this.open()}if((!this.is_closed()||was_closed_with_non_fatal_error)&&this.scheduled_reconnect===undefined){this._disconnect();var disconnect_ctxt={};if(error){disconnect_ctxt.error=error}if(!this.is_server&&!this.transport_error&&this.options.reconnect){var delay=this.options.reconnect(this.conn_established_counter);if(delay>=0){log.reconnect("[%s] Scheduled reconnect in "+delay+"ms",this.options.id);this.scheduled_reconnect=setTimeout(this.reconnect.bind(this),delay);disconnect_ctxt.reconnecting=true}else{disconnect_ctxt.reconnecting=false}}if(!this.dispatch("disconnected",this._context(disconnect_ctxt))){console.warn("["+this.options.id+"] disconnected %s",disconnect_ctxt.error||"")}}};Connection.prototype.open=function(){if(this.state.open()){this._register()}};Connection.prototype.close=function(error){if(error)this.local.close.error=error;if(this.state.close()){this._register()}};Connection.prototype.is_open=function(){return this.state.is_open()};Connection.prototype.is_remote_open=function(){return this.state.remote_open};Connection.prototype.is_closed=function(){return this.state.is_closed()};Connection.prototype.create_session=function(){var i=0;while(this.local_channel_map[i])i++;var session=new Session(this,i);this.local_channel_map[i]=session;return session};Connection.prototype.find_sender=function(filter){return this.find_link(util.sender_filter(filter))};Connection.prototype.find_receiver=function(filter){return this.find_link(util.receiver_filter(filter))};Connection.prototype.find_link=function(filter){for(var channel in this.local_channel_map){var session=this.local_channel_map[channel];var result=session.find_link(filter);if(result)return result}return undefined};Connection.prototype.each_receiver=function(action,filter){this.each_link(action,util.receiver_filter(filter))};Connection.prototype.each_sender=function(action,filter){this.each_link(action,util.sender_filter(filter))};Connection.prototype.each_link=function(action,filter){for(var channel in this.local_channel_map){var session=this.local_channel_map[channel];session.each_link(action,filter)}};Connection.prototype.on_open=function(frame){if(this.state.remote_opened()){this.remote.open=frame.performative;this.open();this.dispatch("connection_open",this._context())}else{throw new errors.ProtocolError("Open already received")}};Connection.prototype.on_close=function(frame){if(this.state.remote_closed()){this.remote.close=frame.performative;if(this.remote.close.error){this._handle_error()}else{this.dispatch("connection_close",this._context())}if(this.heartbeat_out)clearTimeout(this.heartbeat_out);var self=this;process.nextTick(function(){self.close()})}else{throw new errors.ProtocolError("Close already received")}};Connection.prototype._register=function(){if(!this.registered){this.registered=true;process.nextTick(this._process.bind(this))}};Connection.prototype._process=function(){this.registered=false;do{if(this.state.need_open()){this._write_open()}var localChannelMap=this.local_channel_map;for(var k in localChannelMap){localChannelMap[k]._process()}if(this.state.need_close()){this._write_close()}}while(!this.state.has_settled())};Connection.prototype._write_frame=function(channel,frame,payload){this.amqp_transport.encode(frames.amqp_frame(channel,frame,payload));this.output()};Connection.prototype._write_open=function(){this._write_frame(0,this.local.open)};Connection.prototype._write_close=function(){this._write_frame(0,this.local.close)};Connection.prototype.on_begin=function(frame){var session;if(frame.performative.remote_channel===null||frame.performative.remote_channel===undefined){session=this.create_session();session.local.begin.remote_channel=frame.channel}else{session=this.local_channel_map[frame.performative.remote_channel];if(!session)throw new errors.ProtocolError("Invalid value for remote channel "+frame.performative.remote_channel)}session.on_begin(frame);this.remote_channel_map[frame.channel]=session};Connection.prototype.get_peer_certificate=function(){if(this.socket&&this.socket.getPeerCertificate){return this.socket.getPeerCertificate()}else{return undefined}};Connection.prototype.get_tls_socket=function(){if(this.socket&&(this.options.transport==="tls"||this.options.transport==="ssl")){return this.socket}else{return undefined}};Connection.prototype._context=function(c){var context=c?c:{};context.connection=this;if(this.container)context.container=this.container;return context};Connection.prototype.remove_session=function(session){if(this.remote_channel_map[session.remote.channel]===session){delete this.remote_channel_map[session.remote.channel]}if(this.local_channel_map[session.local.channel]===session){delete this.local_channel_map[session.local.channel]}};Connection.prototype.remove_all_sessions=function(){clearObject(this.remote_channel_map);clearObject(this.local_channel_map)};function clearObject(obj){for(var k in obj){if(!Object.prototype.hasOwnProperty.call(obj,k)){continue}delete obj[k]}}function delegate_to_session(name){Connection.prototype["on_"+name]=function(frame){var session=this.remote_channel_map[frame.channel];if(!session){throw new errors.ProtocolError(name+" received on invalid channel "+frame.channel)}session["on_"+name](frame)}}delegate_to_session("end");delegate_to_session("attach");delegate_to_session("detach");delegate_to_session("transfer");delegate_to_session("disposition");delegate_to_session("flow");module.exports=Connection}).call(this)}).call(this,require("_process"),require("buffer").Buffer)},{"./endpoint.js":2,"./errors.js":3,"./frames.js":6,"./log.js":8,"./sasl.js":10,"./session.js":11,"./transport.js":13,"./util.js":15,_process:43,buffer:21,events:27,fs:20,net:20,os:41,path:42,tls:20}],2:[function(require,module,exports){"use strict";var EndpointState=function(){this.init()};EndpointState.prototype.init=function(){this.local_open=false;this.remote_open=false;this.open_requests=0;this.close_requests=0;this.initialised=false;this.marker=undefined};EndpointState.prototype.mark=function(o){this.marker=o||Date.now();return this.marker};EndpointState.prototype.open=function(){this.marker=undefined;this.initialised=true;if(!this.local_open){this.local_open=true;this.open_requests++;return true}else{return false}};EndpointState.prototype.close=function(){this.marker=undefined;if(this.local_open){this.local_open=false;this.close_requests++;return true}else{return false}};EndpointState.prototype.disconnected=function(){var was_initialised=this.initialised;this.was_open=this.local_open;this.init();this.initialised=was_initialised};EndpointState.prototype.reconnect=function(){if(this.was_open){this.open();this.was_open=undefined}};EndpointState.prototype.remote_opened=function(){if(!this.remote_open){this.remote_open=true;return true}else{return false}};EndpointState.prototype.remote_closed=function(){if(this.remote_open){this.remote_open=false;return true}else{return false}};EndpointState.prototype.is_open=function(){return this.local_open&&this.remote_open};EndpointState.prototype.is_closed=function(){return this.initialised&&!(this.local_open||this.was_open)&&!this.remote_open};EndpointState.prototype.has_settled=function(){return this.open_requests===0&&this.close_requests===0};EndpointState.prototype.need_open=function(){if(this.open_requests>0){this.open_requests--;return true}else{return false}};EndpointState.prototype.need_close=function(){if(this.close_requests>0){this.close_requests--;return true}else{return false}};module.exports=EndpointState},{}],3:[function(require,module,exports){"use strict";var util=require("util");function ProtocolError(message){Error.call(this);this.message=message;this.name="ProtocolError"}util.inherits(ProtocolError,Error);function TypeError(message){ProtocolError.call(this,message);this.message=message;this.name="TypeError"}util.inherits(TypeError,ProtocolError);function ConnectionError(message,condition,connection){Error.call(this,message);this.message=message;this.name="ConnectionError";this.condition=condition;this.description=message;Object.defineProperty(this,"connection",{value:connection})}util.inherits(ConnectionError,Error);ConnectionError.prototype.toJSON=function(){return{type:this.name,code:this.condition,message:this.description}};module.exports={ProtocolError:ProtocolError,TypeError:TypeError,ConnectionError:ConnectionError}},{util:46}],4:[function(require,module,exports){"use strict";var ReceiverEvents;(function(ReceiverEvents){ReceiverEvents["message"]="message";ReceiverEvents["receiverOpen"]="receiver_open";ReceiverEvents["receiverDrained"]="receiver_drained";ReceiverEvents["receiverFlow"]="receiver_flow";ReceiverEvents["receiverError"]="receiver_error";ReceiverEvents["receiverClose"]="receiver_close";ReceiverEvents["settled"]="settled"})(ReceiverEvents||(ReceiverEvents={}));var SenderEvents;(function(SenderEvents){SenderEvents["sendable"]="sendable";SenderEvents["senderOpen"]="sender_open";SenderEvents["senderDraining"]="sender_draining";SenderEvents["senderFlow"]="sender_flow";SenderEvents["senderError"]="sender_error";SenderEvents["senderClose"]="sender_close";SenderEvents["accepted"]="accepted";SenderEvents["released"]="released";SenderEvents["rejected"]="rejected";SenderEvents["modified"]="modified";SenderEvents["settled"]="settled"})(SenderEvents||(SenderEvents={}));var SessionEvents;(function(SessionEvents){SessionEvents["sessionOpen"]="session_open";SessionEvents["sessionError"]="session_error";SessionEvents["sessionClose"]="session_close";SessionEvents["settled"]="settled"})(SessionEvents||(SessionEvents={}));var ConnectionEvents;(function(ConnectionEvents){ConnectionEvents["connectionOpen"]="connection_open";ConnectionEvents["connectionClose"]="connection_close";ConnectionEvents["connectionError"]="connection_error";ConnectionEvents["protocolError"]="protocol_error",ConnectionEvents["error"]="error",ConnectionEvents["disconnected"]="disconnected";ConnectionEvents["settled"]="settled"})(ConnectionEvents||(ConnectionEvents={}));module.exports={ReceiverEvents:ReceiverEvents,SenderEvents:SenderEvents,SessionEvents:SessionEvents,ConnectionEvents:ConnectionEvents}},{}],5:[function(require,module,exports){"use strict";var amqp_types=require("./types.js");module.exports={selector:function(s){return{"jms-selector":amqp_types.wrap_described(s,77567109365764)}}}},{"./types.js":14}],6:[function(require,module,exports){"use strict";var types=require("./types.js");var errors=require("./errors.js");var frames={};var by_descriptor={};frames.read_header=function(buffer){var offset=4;var header={};var name=buffer.toString("ascii",0,offset);if(name!=="AMQP"){throw new errors.ProtocolError("Invalid protocol header for AMQP: "+buffer.toString("hex",0,offset))}header.protocol_id=buffer.readUInt8(offset++);header.major=buffer.readUInt8(offset++);header.minor=buffer.readUInt8(offset++);header.revision=buffer.readUInt8(offset++);if(header.protocol_id===0&&header.major===0&&header.minor===9&&header.revision===1){throw new errors.ProtocolError("Unsupported AMQP version: 0-9-1")}if(header.protocol_id===1&&header.major===1&&header.minor===0&&header.revision===10){throw new errors.ProtocolError("Unsupported AMQP version: 0-10")}if(header.major!==1||header.minor!==0){throw new errors.ProtocolError("Unsupported AMQP version: "+JSON.stringify(header))}return header};frames.write_header=function(buffer,header){var offset=4;buffer.write("AMQP",0,offset,"ascii");buffer.writeUInt8(header.protocol_id,offset++);buffer.writeUInt8(header.major,offset++);buffer.writeUInt8(header.minor,offset++);buffer.writeUInt8(header.revision,offset++);return 8};frames.TYPE_AMQP=0;frames.TYPE_SASL=1;frames.read_frame=function(buffer){var reader=new types.Reader(buffer);var frame={};frame.size=reader.read_uint(4);if(reader.remaining()<frame.size-4){return null}var doff=reader.read_uint(1);if(doff<2){throw new errors.ProtocolError("Invalid data offset, must be at least 2 was "+doff)}frame.type=reader.read_uint(1);if(frame.type===frames.TYPE_AMQP){frame.channel=reader.read_uint(2)}else if(frame.type===frames.TYPE_SASL){reader.skip(2);frame.channel=0}else{throw new errors.ProtocolError("Unknown frame type "+frame.type)}if(doff>1){reader.skip(doff*4-8)}if(reader.remaining()){frame.performative=reader.read();var c=by_descriptor[frame.performative.descriptor.value];if(c){frame.performative=new c(frame.performative.value)}if(reader.remaining()){frame.payload=reader.read_bytes(reader.remaining())}}return frame};frames.write_frame=function(frame){var writer=new types.Writer;writer.skip(4);writer.write_uint(2,1);writer.write_uint(frame.type,1);if(frame.type===frames.TYPE_AMQP){writer.write_uint(frame.channel,2)}else if(frame.type===frames.TYPE_SASL){writer.write_uint(0,2)}else{throw new errors.ProtocolError("Unknown frame type "+frame.type)}if(frame.performative){writer.write(frame.performative);if(frame.payload){writer.write_bytes(frame.payload)}}var buffer=writer.toBuffer();buffer.writeUInt32BE(buffer.length,0);return buffer};frames.amqp_frame=function(channel,performative,payload){return{channel:channel||0,type:frames.TYPE_AMQP,performative:performative,payload:payload}};frames.sasl_frame=function(performative){return{channel:0,type:frames.TYPE_SASL,performative:performative}};function define_frame(type,def){var c=types.define_composite(def);frames[def.name]=c.create;by_descriptor[Number(c.descriptor.numeric).toString(10)]=c;by_descriptor[c.descriptor.symbolic]=c}var open={name:"open",code:16,fields:[{name:"container_id",type:"string",mandatory:true},{name:"hostname",type:"string"},{name:"max_frame_size",type:"uint",default_value:4294967295},{name:"channel_max",type:"ushort",default_value:65535},{name:"idle_time_out",type:"uint"},{name:"outgoing_locales",type:"symbol",multiple:true},{name:"incoming_locales",type:"symbol",multiple:true},{name:"offered_capabilities",type:"symbol",multiple:true},{name:"desired_capabilities",type:"symbol",multiple:true},{name:"properties",type:"symbolic_map"}]};var begin={name:"begin",code:17,fields:[{name:"remote_channel",type:"ushort"},{name:"next_outgoing_id",type:"uint",mandatory:true},{name:"incoming_window",type:"uint",mandatory:true},{name:"outgoing_window",type:"uint",mandatory:true},{name:"handle_max",type:"uint",default_value:"4294967295"},{name:"offered_capabilities",type:"symbol",multiple:true},{name:"desired_capabilities",type:"symbol",multiple:true},{name:"properties",type:"symbolic_map"}]};var attach={name:"attach",code:18,fields:[{name:"name",type:"string",mandatory:true},{name:"handle",type:"uint",mandatory:true},{name:"role",type:"boolean",mandatory:true},{name:"snd_settle_mode",type:"ubyte",default_value:2},{name:"rcv_settle_mode",type:"ubyte",default_value:0},{name:"source",type:"*"},{name:"target",type:"*"},{name:"unsettled",type:"map"},{name:"incomplete_unsettled",type:"boolean",default_value:false},{name:"initial_delivery_count",type:"uint"},{name:"max_message_size",type:"ulong"},{name:"offered_capabilities",type:"symbol",multiple:true},{name:"desired_capabilities",type:"symbol",multiple:true},{name:"properties",type:"symbolic_map"}]};var flow={name:"flow",code:19,fields:[{name:"next_incoming_id",type:"uint"},{name:"incoming_window",type:"uint",mandatory:true},{name:"next_outgoing_id",type:"uint",mandatory:true},{name:"outgoing_window",type:"uint",mandatory:true},{name:"handle",type:"uint"},{name:"delivery_count",type:"uint"},{name:"link_credit",type:"uint"},{name:"available",type:"uint"},{name:"drain",type:"boolean",default_value:false},{name:"echo",type:"boolean",default_value:false},{name:"properties",type:"symbolic_map"}]};var transfer={name:"transfer",code:20,fields:[{name:"handle",type:"uint",mandatory:true},{name:"delivery_id",type:"uint"},{name:"delivery_tag",type:"binary"},{name:"message_format",type:"uint"},{name:"settled",type:"boolean"},{name:"more",type:"boolean",default_value:false},{name:"rcv_settle_mode",type:"ubyte"},{name:"state",type:"delivery_state"},{name:"resume",type:"boolean",default_value:false},{name:"aborted",type:"boolean",default_value:false},{name:"batchable",type:"boolean",default_value:false}]};var disposition={name:"disposition",code:21,fields:[{name:"role",type:"boolean",mandatory:true},{name:"first",type:"uint",mandatory:true},{name:"last",type:"uint"},{name:"settled",type:"boolean",default_value:false},{name:"state",type:"*"},{name:"batchable",type:"boolean",default_value:false}]};var detach={name:"detach",code:22,fields:[{name:"handle",type:"uint",mandatory:true},{name:"closed",type:"boolean",default_value:false},{name:"error",type:"error"}]};var end={name:"end",code:23,fields:[{name:"error",type:"error"}]};var close={name:"close",code:24,fields:[{name:"error",type:"error"}]};define_frame(frames.TYPE_AMQP,open);define_frame(frames.TYPE_AMQP,begin);define_frame(frames.TYPE_AMQP,attach);define_frame(frames.TYPE_AMQP,flow);define_frame(frames.TYPE_AMQP,transfer);define_frame(frames.TYPE_AMQP,disposition);define_frame(frames.TYPE_AMQP,detach);define_frame(frames.TYPE_AMQP,end);define_frame(frames.TYPE_AMQP,close);var sasl_mechanisms={name:"sasl_mechanisms",code:64,fields:[{name:"sasl_server_mechanisms",type:"symbol",multiple:true,mandatory:true}]};var sasl_init={name:"sasl_init",code:65,fields:[{name:"mechanism",type:"symbol",mandatory:true},{name:"initial_response",type:"binary"},{name:"hostname",type:"string"}]};var sasl_challenge={name:"sasl_challenge",code:66,fields:[{name:"challenge",type:"binary",mandatory:true}]};var sasl_response={name:"sasl_response",code:67,fields:[{name:"response",type:"binary",mandatory:true}]};var sasl_outcome={name:"sasl_outcome",code:68,fields:[{name:"code",type:"ubyte",mandatory:true},{name:"additional_data",type:"binary"}]};define_frame(frames.TYPE_SASL,sasl_mechanisms);define_frame(frames.TYPE_SASL,sasl_init);define_frame(frames.TYPE_SASL,sasl_challenge);define_frame(frames.TYPE_SASL,sasl_response);define_frame(frames.TYPE_SASL,sasl_outcome);module.exports=frames},{"./errors.js":3,"./types.js":14}],7:[function(require,module,exports){(function(process,Buffer){(function(){"use strict";var frames=require("./frames.js");var log=require("./log.js");var message=require("./message.js");var terminus=require("./terminus.js");var EndpointState=require("./endpoint.js");var FlowController=function(window){this.window=window};FlowController.prototype.update=function(context){var delta=this.window-context.receiver.credit;if(delta>=this.window/4){context.receiver.flow(delta)}};function auto_settle(context){context.delivery.settled=true}function auto_accept(context){context.delivery.update(undefined,message.accepted().described())}function LinkError(message,condition,link){Error.call(this);Error.captureStackTrace(this,this.constructor);this.message=message;this.condition=condition;this.description=message;Object.defineProperty(this,"link",{value:link})}require("util").inherits(LinkError,Error);var EventEmitter=require("events").EventEmitter;var link=Object.create(EventEmitter.prototype);link.dispatch=function(name){log.events("[%s] Link got event: %s",this.connection.options.id,name);EventEmitter.prototype.emit.apply(this.observers,arguments);if(this.listeners(name).length){EventEmitter.prototype.emit.apply(this,arguments);return true}else{return this.session.dispatch.apply(this.session,arguments)}};link.set_source=function(fields){this.local.attach.source=terminus.source(fields).described()};link.set_target=function(fields){this.local.attach.target=terminus.target(fields).described()};link.attach=function(){if(this.state.open()){this.connection._register()}};link.open=link.attach;link.detach=function(){this.local.detach.closed=false;if(this.state.close()){this.connection._register()}};link.close=function(error){if(error)this.local.detach.error=error;this.local.detach.closed=true;if(this.state.close()){this.connection._register()}};link.remove=function(){this.session.remove_link(this)};link.is_open=function(){return this.session.is_open()&&this.state.is_open()};link.is_remote_open=function(){return this.session.is_remote_open()&&this.state.remote_open};link.is_itself_closed=function(){return this.state.is_closed()};link.is_closed=function(){return this.session.is_closed()||this.is_itself_closed()};link._process=function(){do{if(this.state.need_open()){this.session.output(this.local.attach)}if(this.issue_flow&&this.state.local_open){this.session._write_flow(this);this.issue_flow=false}if(this.state.need_close()){this.session.output(this.local.detach)}}while(!this.state.has_settled())};link.on_attach=function(frame){if(this.state.remote_opened()){if(!this.remote.handle){this.remote.handle=frame.handle}frame.performative.source=terminus.unwrap(frame.performative.source);frame.performative.target=terminus.unwrap(frame.performative.target);this.remote.attach=frame.performative;this.open();this.dispatch(this.is_receiver()?"receiver_open":"sender_open",this._context())}else{throw Error("Attach already received")}};link.prefix_event=function(event){return(this.local.attach.role?"receiver_":"sender_")+event};link.on_detach=function(frame){if(this.state.remote_closed()){if(this._incomplete){this._incomplete.settled=true}this.remote.detach=frame.performative;var error=this.remote.detach.error;if(error){var handled=this.dispatch(this.prefix_event("error"),this._context());handled=this.dispatch(this.prefix_event("close"),this._context())||handled;if(!handled){EventEmitter.prototype.emit.call(this.connection.container,"error",new LinkError(error.description,error.condition,this))}}else{this.dispatch(this.prefix_event("close"),this._context())}var self=this;var token=this.state.mark();process.nextTick(function(){if(self.state.marker===token){self.close();process.nextTick(function(){self.remove()})}})}else{throw Error("Detach already received")}};function is_internal(name){switch(name){case"name":case"handle":case"role":case"initial_delivery_count":return true;default:return false}}var aliases=["snd_settle_mode","rcv_settle_mode","source","target","max_message_size","offered_capabilities","desired_capabilities","properties"];function remote_property_shortcut(name){return function(){return this.remote.attach?this.remote.attach[name]:undefined}}link.init=function(session,name,local_handle,opts,is_receiver){this.session=session;this.connection=session.connection;this.name=name;this.options=opts===undefined?{}:opts;this.state=new EndpointState;this.issue_flow=false;this.local={handle:local_handle};this.local.attach=frames.attach({handle:local_handle,name:name,role:is_receiver});for(var field in this.local.attach){if(!is_internal(field)&&this.options[field]!==undefined){this.local.attach[field]=this.options[field]}}this.local.detach=frames.detach({handle:local_handle,closed:true});this.remote={handle:undefined};this.delivery_count=0;this.credit=0;this.observers=new EventEmitter;var self=this;aliases.forEach(function(alias){Object.defineProperty(self,alias,{get:remote_property_shortcut(alias)})});Object.defineProperty(this,"error",{get:function(){return this.remote.detach?this.remote.detach.error:undefined}})};link._disconnect=function(){this.state.disconnected();if(!this.state.was_open){this.remove()}};link._reconnect=function(){this.state.reconnect();this.remote={handle:undefined};this.delivery_count=0;this.credit=0};link.has_credit=function(){return this.credit>0};link.is_receiver=function(){return this.local.attach.role};link.is_sender=function(){return!this.is_receiver()};link._context=function(c){var context=c?c:{};if(this.is_receiver()){context.receiver=this}else{context.sender=this}return this.session._context(context)};link.get_option=function(name,default_value){if(this.options[name]!==undefined)return this.options[name];else return this.session.get_option(name,default_value)};var Sender=function(session,name,local_handle,opts){this.init(session,name,local_handle,opts,false);this._draining=false;this._drained=false;this.local.attach.initial_delivery_count=0;this.tag=0;if(this.get_option("autosettle",true)){this.observers.on("settled",auto_settle)}var sender=this;if(this.get_option("treat_modified_as_released",true)){this.observers.on("modified",function(context){sender.dispatch("released",context)})}};Sender.prototype=Object.create(link);Sender.prototype.constructor=Sender;Sender.prototype._get_drain=function(){if(this._draining&&this._drained&&this.credit){while(this.credit){++this.delivery_count;--this.credit}return true}else{return false}};Sender.prototype.set_drained=function(drained){this._drained=drained;if(this._draining&&this._drained){this.issue_flow=true}};Sender.prototype.next_tag=function(){return Buffer.from(new String(this.tag++))};Sender.prototype.sendable=function(){return Boolean(this.credit&&this.session.outgoing.available())};Sender.prototype.on_flow=function(frame){var flow=frame.performative;this.credit=flow.delivery_count+flow.link_credit-this.delivery_count;this._draining=flow.drain;this._drained=this.credit>0;if(this.is_open()){this.dispatch("sender_flow",this._context());if(this._draining){this.dispatch("sender_draining",this._context())}if(this.sendable()){this.dispatch("sendable",this._context())}}};Sender.prototype.on_transfer=function(){throw Error("got transfer on sending link")};Sender.prototype.send=function(msg,tag,format){var payload=format===undefined?message.encode(msg):msg;var delivery=this.session.send(this,tag?tag:this.next_tag(),payload,format);if(this.local.attach.snd_settle_mode===1){delivery.settled=true}return delivery};var Receiver=function(session,name,local_handle,opts){this.init(session,name,local_handle,opts,true);this.drain=false;this.set_credit_window(this.get_option("credit_window",1e3));if(this.get_option("autoaccept",true)){this.observers.on("message",auto_accept)}if(this.local.attach.rcv_settle_mode===1&&this.get_option("autosettle",true)){this.observers.on("settled",auto_settle)}};Receiver.prototype=Object.create(link);Receiver.prototype.constructor=Receiver;Receiver.prototype.on_flow=function(frame){this.dispatch("receiver_flow",this._context());if(frame.performative.drain){this.credit=frame.performative.link_credit;this.delivery_count=frame.performative.delivery_count;if(frame.performative.link_credit>0)console.error("ERROR: received flow with drain set, but non zero credit");else this.dispatch("receiver_drained",this._context())}};Receiver.prototype.flow=function(credit){if(credit>0){this.credit+=credit;this.issue_flow=true;this.connection._register()}};Receiver.prototype.drain_credit=function(){this.drain=true;this.issue_flow=true;this.connection._register()};Receiver.prototype.add_credit=Receiver.prototype.flow;Receiver.prototype._get_drain=function(){return this.drain};Receiver.prototype.set_credit_window=function(credit_window){if(credit_window>0){var flow_controller=new FlowController(credit_window);var listener=flow_controller.update.bind(flow_controller);this.observers.on("message",listener);this.observers.on("receiver_open",listener)}};module.exports={Sender:Sender,Receiver:Receiver}}).call(this)}).call(this,require("_process"),require("buffer").Buffer)},{"./endpoint.js":2,"./frames.js":6,"./log.js":8,"./message.js":9,"./terminus.js":12,_process:43,buffer:21,events:27,util:46}],8:[function(require,module,exports){"use strict";var debug=require("debug");if(debug.formatters){debug.formatters.h=function(v){return v.toString("hex")}}module.exports={config:debug("rhea:config"),frames:debug("rhea:frames"),raw:debug("rhea:raw"),reconnect:debug("rhea:reconnect"),events:debug("rhea:events"),message:debug("rhea:message"),flow:debug("rhea:flow"),io:debug("rhea:io")}},{debug:24}],9:[function(require,module,exports){"use strict";var log=require("./log.js");var types=require("./types.js");var by_descriptor={};var unwrappers={};var wrappers=[];var message={};function define_section(descriptor,unwrap,wrap){unwrap.descriptor=descriptor;unwrappers[descriptor.symbolic]=unwrap;unwrappers[Number(descriptor.numeric).toString(10)]=unwrap;if(wrap){wrappers.push(wrap)}}function define_composite_section(def){var c=types.define_composite(def);message[def.name]=c.create;by_descriptor[Number(c.descriptor.numeric).toString(10)]=c;by_descriptor[c.descriptor.symbolic]=c;var unwrap=function(msg,section){var composite=new c(section.value);for(var i=0;i<def.fields.length;i++){var f=def.fields[i];var v=composite[f.name];if(v!==undefined&&v!==null){msg[f.name]=v}}};var wrap=function(sections,msg){sections.push(c.create(msg).described())};define_section(c.descriptor,unwrap,wrap)}function define_map_section(def,symbolic){var wrapper=symbolic?types.wrap_symbolic_map:types.wrap_map;var descriptor={numeric:def.code};descriptor.symbolic="amqp:"+def.name.replace(/_/g,"-")+":map";var unwrap=function(msg,section){msg[def.name]=types.unwrap_map_simple(section)};var wrap=function(sections,msg){if(msg[def.name]){sections.push(types.described_nc(types.wrap_ulong(descriptor.numeric),wrapper(msg[def.name])))}};define_section(descriptor,unwrap,wrap)}function Section(typecode,content,multiple){this.typecode=typecode;this.content=content;this.multiple=multiple}Section.prototype.described=function(item){return types.described(types.wrap_ulong(this.typecode),types.wrap(item||this.content))};Section.prototype.collect_sections=function(sections){if(this.multiple){for(var i=0;i<this.content.length;i++){sections.push(this.described(this.content[i]))}}else{sections.push(this.described())}};define_composite_section({name:"header",code:112,fields:[{name:"durable",type:"boolean",default_value:false},{name:"priority",type:"ubyte",default_value:4},{name:"ttl",type:"uint"},{name:"first_acquirer",type:"boolean",default_value:false},{name:"delivery_count",type:"uint",default_value:0}]});define_map_section({name:"delivery_annotations",code:113},true);define_map_section({name:"message_annotations",code:114},true);define_composite_section({name:"properties",code:115,fields:[{name:"message_id",type:"message_id"},{name:"user_id",type:"binary"},{name:"to",type:"string"},{name:"subject",type:"string"},{name:"reply_to",type:"string"},{name:"correlation_id",type:"message_id"},{name:"content_type",type:"symbol"},{name:"content_encoding",type:"symbol"},{name:"absolute_expiry_time",type:"timestamp"},{name:"creation_time",type:"timestamp"},{name:"group_id",type:"string"},{name:"group_sequence",type:"uint"},{name:"reply_to_group_id",type:"string"}]});define_map_section({name:"application_properties",code:116});function unwrap_body_section(msg,section,typecode){if(msg.body===undefined){msg.body=new Section(typecode,types.unwrap(section))}else if(msg.body.constructor===Section&&msg.body.typecode===typecode){if(msg.body.multiple){msg.body.content.push(types.unwrap(section))}else{msg.body.multiple=true;msg.body.content=[msg.body.content,types.unwrap(section)]}}}define_section({numeric:117,symbolic:"amqp:data:binary"},function(msg,section){unwrap_body_section(msg,section,117)});define_section({numeric:118,symbolic:"amqp:amqp-sequence:list"},function(msg,section){unwrap_body_section(msg,section,118)});define_section({numeric:119,symbolic:"amqp:value:*"},function(msg,section){msg.body=types.unwrap(section)});define_map_section({name:"footer",code:120});function wrap_body(sections,msg){if(msg.body&&msg.body.collect_sections){msg.body.collect_sections(sections)}else{sections.push(types.described(types.wrap_ulong(119),types.wrap(msg.body)))}}wrappers.push(wrap_body);message.data_section=function(data){return new Section(117,data)};message.sequence_section=function(list){return new Section(118,list)};message.data_sections=function(data_elements){return new Section(117,data_elements,true)};message.sequence_sections=function(lists){return new Section(118,lists,true)};function copy(src,tgt){for(var k in src){var v=src[k];if(typeof v==="object"){copy(v,tgt[k])}else{tgt[k]=v}}}function Message(o){if(o){copy(o,this)}}Message.prototype.toJSON=function(){var o={};for(var key in this){if(typeof this[key]==="function")continue;o[key]=this[key]}return o};Message.prototype.toString=function(){return JSON.stringify(this.toJSON())};message.encode=function(msg){var sections=[];wrappers.forEach(function(wrapper_fn){wrapper_fn(sections,msg)});var writer=new types.Writer;for(var i=0;i<sections.length;i++){log.message("Encoding section %d of %d: %o",i+1,sections.length,sections[i]);writer.write(sections[i])}var data=writer.toBuffer();log.message("encoded %d bytes",data.length);return data};message.decode=function(buffer){var msg=new Message;var reader=new types.Reader(buffer);while(reader.remaining()){var s=reader.read();log.message("decoding section: %o of type: %o",s,s.descriptor);if(s.descriptor){var unwrap=unwrappers[s.descriptor.value];if(unwrap){unwrap(msg,s)}else{console.warn("WARNING: did not recognise message section with descriptor "+s.descriptor)}}else{console.warn("WARNING: expected described message section got "+JSON.stringify(s))}}return msg};var outcomes={};function define_outcome(def){var c=types.define_composite(def);c.composite_type=def.name;message[def.name]=c.create;outcomes[Number(c.descriptor.numeric).toString(10)]=c;outcomes[c.descriptor.symbolic]=c;message["is_"+def.name]=function(o){if(o&&o.descriptor){var c=outcomes[o.descriptor.value];if(c){return c.descriptor.numeric===def.code}}return false}}message.unwrap_outcome=function(outcome){if(outcome&&outcome.descriptor){var c=outcomes[outcome.descriptor.value];if(c){return new c(outcome.value)}}console.error("unrecognised outcome: "+JSON.stringify(outcome));return outcome};message.are_outcomes_equivalent=function(a,b){if(a===undefined&&b===undefined)return true;else if(a