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vn-softphone/static/js/jssip.js

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/*
* JsSIP v3.1.4
* the Javascript SIP library
* Copyright: 2012-2017 José Luis Millán <jmillan@aliax.net> (https://github.com/jmillan)
* Homepage: http://jssip.net
* License: MIT
*/
!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{("undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this).JsSIP=e()}}(function(){return function e(t,n,r){function i(o,a){if(!n[o]){if(!t[o]){var l="function"==typeof require&&require;if(!a&&l)return l(o,!0);if(s)return s(o,!0);var u=new Error("Cannot find module '"+o+"'");throw u.code="MODULE_NOT_FOUND",u}var c=n[o]={exports:{}};t[o][0].call(c.exports,function(e){var n=t[o][1][e];return i(n||e)},c,c.exports,e,t,n,r)}return n[o].exports}for(var s="function"==typeof require&&require,o=0;o<r.length;o++)i(r[o]);return i}({1:[function(e,t,n){"use strict";var r=e("./Utils"),i=e("./Constants"),s=e("./Grammar"),o=e("./URI"),a=e("./Socket"),l=e("./Exceptions");n.settings={authorization_user:null,password:null,realm:null,ha1:null,display_name:null,uri:null,contact_uri:null,instance_id:null,use_preloaded_route:!1,session_timers:!0,session_timers_refresh_method:i.UPDATE,no_answer_timeout:60,register:!0,register_expires:600,registrar_server:null,sockets:null,connection_recovery_max_interval:null,connection_recovery_min_interval:null,via_host:r.createRandomToken(12)+".invalid"};var u={mandatory:{sockets:function(e){var t=[];if(a.isSocket(e))t.push({socket:e});else{if(!Array.isArray(e)||!e.length)return;var n=!0,r=!1,i=void 0;try{for(var s,o=e[Symbol.iterator]();!(n=(s=o.next()).done);n=!0){var l=s.value;a.isSocket(l)&&t.push({socket:l})}}catch(e){r=!0,i=e}finally{try{!n&&o.return&&o.return()}finally{if(r)throw i}}}return t},uri:function(e){/^sip:/i.test(e)||(e=i.SIP+":"+e);var t=o.parse(e);return t&&t.user?t:void 0}},optional:{authorization_user:function(e){return-1===s.parse('"'+e+'"',"quoted_string")?void 0:e},connection_recovery_max_interval:function(e){if(r.isDecimal(e)){var t=Number(e);if(t>0)return t}},connection_recovery_min_interval:function(e){if(r.isDecimal(e)){var t=Number(e);if(t>0)return t}},contact_uri:function(e){if("string"==typeof e){var t=s.parse(e,"SIP_URI");if(-1!==t)return t}},display_name:function(e){return-1===s.parse('"'+e+'"',"display_name")?void 0:e},instance_id:function(e){return/^uuid:/i.test(e)&&(e=e.substr(5)),-1===s.parse(e,"uuid")?void 0:e},no_answer_timeout:function(e){if(r.isDecimal(e)){var t=Number(e);if(t>0)return t}},session_timers:function(e){if("boolean"==typeof e)return e},session_timers_refresh_method:function(e){if("string"==typeof e&&((e=e.toUpperCase())===i.INVITE||e===i.UPDATE))return e},password:function(e){return String(e)},realm:function(e){return String(e)},ha1:function(e){return String(e)},register:function(e){if("boolean"==typeof e)return e},register_expires:function(e){if(r.isDecimal(e)){var t=Number(e);if(t>0)return t}},registrar_server:function(e){/^sip:/i.test(e)||(e=i.SIP+":"+e);var t=o.parse(e);return t?t.user?void 0:t:void 0},use_preloaded_route:function(e){if("boolean"==typeof e)return e}}};n.load=function(e,t){for(var n in u.mandatory){if(!t.hasOwnProperty(n))throw new l.ConfigurationError(n);var i=t[n],s=u.mandatory[n](i);if(void 0===s)throw new l.ConfigurationError(n,i);e[n]=s}for(var o in u.optional)if(t.hasOwnProperty(o)){var a=t[o];if(r.isEmpty(a))continue;var c=u.optional[o](a);if(void 0===c)throw new l.ConfigurationError(o,a);e[o]=c}}},{"./Constants":2,"./Exceptions":6,"./Grammar":7,"./Socket":20,"./URI":25,"./Utils":26}],2:[function(e,t,n){"use strict";var r=e("../package.json");t.exports={USER_AGENT:r.title+" "+r.version,SIP:"sip",SIPS:"sips",causes:{CONNECTION_ERROR:"Connection Error",REQUEST_TIMEOUT:"Request Timeout",SIP_FAILURE_CODE:"SIP Failure Code",INTERNAL_ERROR:"Internal Error",BUSY:"Busy",REJECTED:"Rejected",REDIRECTED:"Redirected",UNAVAILABLE:"Unavailable",NOT_FOUND:"Not Found",ADDRESS_INCOMPLETE:"Address Incomplete",INCOMPATIBLE_SDP:"Incompatible SDP",MISSING_SDP:"Missing SDP",AUTHENTICATION_ERROR:"Authentication Error",BYE:"Terminated",WEBRTC_ERROR:"WebRTC Error",CANCELED:"Canceled",NO_ANSWER:"No Answer",EXPIRES:"Expires",NO_ACK:"No ACK",DIALOG_ERROR:"Dialog Error",USER_DENIED_MEDIA_ACCESS:"User Denied Media Access",BAD_MEDIA_DESCRIPTION:"Bad Media Description",RTP_TIMEOUT:"RTP Timeout"},SIP_ERROR_CAUSES:{REDIRECTED:[300,301,302,305,380],BUSY:[486,600],REJECTED:[403,603],NOT_FOUND:[404,604],UNAVAILABLE:[480,410,408,430],ADDRESS_INCOMPLETE:[484,424],INCOMPATIBLE_SDP:[488,606],AUTHENTICATION_ERROR:[401,407]},ACK:"ACK",BYE:"BYE",CANCEL:"CANCEL",INFO:"INFO",INVITE:"INVITE",MESSAGE:"MESSAGE",NOTIFY:"NOTIFY",OPTIONS:"OPTIONS",REGISTER:"REGISTER",REFER:"REFER",UPDATE:"UPDATE",SUBSCRIBE:"SUBSCRIBE",REASON_PHRASE:{100:"Trying",180:"Ringing",181:"Call Is Being Forwarded",182:"Queued",183:"Session Progress",199:"Early Dialog Terminated",200:"OK",202:"Accepted",204:"No Notification",300:"Multiple Choices",301:"Moved Permanently",302:"Moved Temporarily",305:"Use Proxy",380:"Alternative Service",400:"Bad Request",401:"Unauthorized",402:"Payment Required",403:"Forbidden",404:"Not Found",405:"Method Not Allowed",406:"Not Acceptable",407:"Proxy Authentication Required",408:"Request Timeout",410:"Gone",412:"Conditional Request Failed",413:"Request Entity Too Large",414:"Request-URI Too Long",415:"Unsupported Media Type",416:"Unsupported URI Scheme",417:"Unknown Resource-Priority",420:"Bad Extension",421:"Extension Required",422:"Session Interval Too Small",423:"Interval Too Brief",424:"Bad Location Information",428:"Use Identity Header",429:"Provide Referrer Identity",430:"Flow Failed",433:"Anonymity Disallowed",436:"Bad Identity-Info",437:"Unsupported Certificate",438:"Invalid Identity Header",439:"First Hop Lacks Outbound Support",440:"Max-Breadth Exceeded",469:"Bad Info Package",470:"Consent Needed",478:"Unresolvable Destination",480:"Temporarily Unavailable",481:"Call/Transaction Does Not Exist",482:"Loop Detected",483:"Too Many Hops",484:"Address Incomplete",485:"Ambiguous",486:"Busy Here",487:"Request Terminated",488:"Not Acceptable Here",489:"Bad Event",491:"Request Pending",493:"Undecipherable",494:"Security Agreement Required",500:"JsSIP Internal Error",501:"Not Implemented",502:"Bad Gateway",503:"Service Unavailable",504:"Server Time-out",505:"Version Not Supported",513:"Message Too Large",580:"Precondition Failure",600:"Busy Everywhere",603:"Decline",604:"Does Not Exist Anywhere",606:"Not Acceptable"},ALLOWED_METHODS:"INVITE,ACK,CANCEL,BYE,UPDATE,MESSAGE,OPTIONS,REFER,INFO",ACCEPTED_BODY_TYPES:"application/sdp, application/dtmf-relay",MAX_FORWARDS:69,SESSION_EXPIRES:90,MIN_SESSION_EXPIRES:60}},{"../package.json":51}],3:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("./SIPMessage"),s=e("./Constants"),o=e("./Transactions"),a=e("./Dialog/RequestSender"),l=e("./Utils"),u=e("debug")("JsSIP:Dialog"),c={STATUS_EARLY:1,STATUS_CONFIRMED:2};t.exports=function(){function e(t,n,r){var s=arguments.length>3&&void 0!==arguments[3]?arguments[3]:c.STATUS_CONFIRMED;if(function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._owner=t,this._ua=t._ua,this._uac_pending_reply=!1,this._uas_pending_reply=!1,!n.hasHeader("contact"))return{error:"unable to create a Dialog without Contact header field"};n instanceof i.IncomingResponse&&(s=n.status_code<200?c.STATUS_EARLY:c.STATUS_CONFIRMED);var o=n.parseHeader("contact");"UAS"===r?(this._id={call_id:n.call_id,local_tag:n.to_tag,remote_tag:n.from_tag,toString:function(){return this.call_id+this.local_tag+this.remote_tag}},this._state=s,this._remote_seqnum=n.cseq,this._local_uri=n.parseHeader("to").uri,this._remote_uri=n.parseHeader("from").uri,this._remote_target=o.uri,this._route_set=n.getHeaders("record-route"),this._ack_seqnum=this._remote_seqnum):"UAC"===r&&(this._id={call_id:n.call_id,local_tag:n.from_tag,remote_tag:n.to_tag,toString:function(){return this.call_id+this.local_tag+this.remote_tag}},this._state=s,this._local_seqnum=n.cseq,this._local_uri=n.parseHeader("from").uri,this._remote_uri=n.parseHeader("to").uri,this._remote_target=o.uri,this._route_set=n.getHeaders("record-route").reverse(),this._ack_seqnum=null),this._ua.newDialog(this),u("new "+r+" dialog created with status "+(this._state===c.STATUS_EARLY?"EARLY":"CONFIRMED"))}return r(e,null,[{key:"C",get:function(){return c}}]),r(e,[{key:"update",value:function(e,t){this._state=c.STATUS_CONFIRMED,u("dialog "+this._id.toString()+" changed to CONFIRMED state"),"UAC"===t&&(this._route_set=e.getHeaders("record-route").reverse())}},{key:"terminate",value:function(){u("dialog "+this._id.toString()+" deleted"),this._ua.destroyDialog(this)}},{key:"sendRequest",value:function(e){var t=this,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},r=l.cloneArray(n.extraHeaders),i=n.eventHandlers||{},s=n.body||null,o=this._createRequest(e,r,s);i.onAuthenticated=function(){t._local_seqnum+=1};return new a(this,o,i).send(),o}},{key:"receiveRequest",value:function(e){this._checkInDialogRequest(e)&&(e.method===s.ACK&&null!==this._ack_seqnum?this._ack_seqnum=null:e.method===s.INVITE&&(this._ack_seqnum=e.cseq),this._owner.receiveRequest(e))}},{key:"_createRequest",value:function(e,t,n){t=l.cloneArray(t),this._local_seqnum||(this._local_seqnum=Math.floor(1e4*Math.random()));var r=e===s.CANCEL||e===s.ACK?this._local_seqnum:this._local_seqnum+=1;return new i.OutgoingRequest(e,this._remote_target,this._ua,{cseq:r,call_id:this._id.call_id,from_uri:this._local_uri,from_tag:this._id.local_tag,to_uri:this._remote_uri,to_tag:this._id.remote_tag,route_set:this._route_set},t,n)}},{key:"_checkInDialogRequest",value:function(e){var t=this;if(this._remote_seqnum)if(e.cseq<this._remote_seqnum){if(e.method!==s.ACK)return e.reply(500),!1;if(null===this._ack_seqnum||e.cseq!==this._ack_seqnum)return!1}else e.cseq>this._remote_seqnum&&(this._remote_seqnum=e.cseq);else this._remote_seqnum=e.cseq;if(e.method===s.INVITE||e.method===s.UPDATE&&e.body){if(!0===this._uac_pending_reply)e.reply(491);else{if(!0===this._uas_pending_reply){var n=1+(10*Math.random()|0);return e.reply(500,null,["Retry-After:"+n]),!1}this._uas_pending_reply=!0;e.server_transaction.on("stateChanged",function n(){e.server_transaction.state!==o.C.STATUS_ACCEPTED&&e.server_transaction.state!==o.C.STATUS_COMPLETED&&e.server_transaction.state!==o.C.STATUS_TERMINATED||(e.server_transaction.removeListener("stateChanged",n),t._uas_pending_reply=!1)})}e.hasHeader("contact")&&e.server_transaction.on("stateChanged",function(){e.server_transaction.state===o.C.STATUS_ACCEPTED&&(t._remote_target=e.parseHeader("contact").uri)})}else e.method===s.NOTIFY&&e.hasHeader("contact")&&e.server_transaction.on("stateChanged",function(){e.server_transaction.state===o.C.STATUS_COMPLETED&&(t._remote_target=e.parseHeader("contact").uri)});return!0}},{key:"id",get:function(){return this._id}},{key:"local_seqnum",get:function(){return this._local_seqnum},set:function(e){this._local_seqnum=e}},{key:"owner",get:function(){return this._owner}},{key:"uac_pending_reply",get:function(){return this._uac_pending_reply},set:function(e){this._uac_pending_reply=e}},{key:"uas_pending_reply",get:function(){return this._uas_pending_reply}}]),e}()},{"./Constants":2,"./Dialog/RequestSender":4,"./SIPMessage":19,"./Transactions":22,"./Utils":26,debug:29}],4:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("../Constants"),s=e("../Transactions"),o=e("../RTCSession"),a=e("../RequestSender"),l={onRequestTimeout:function(){},onTransportError:function(){},onSuccessResponse:function(){},onErrorResponse:function(){},onAuthenticated:function(){},onDialogError:function(){}};t.exports=function(){function e(t,n,r){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._dialog=t,this._ua=t._ua,this._request=n,this._eventHandlers=r,this._reattempt=!1,this._reattemptTimer=null;for(var i in l)Object.prototype.hasOwnProperty.call(l,i)&&(this._eventHandlers[i]||(this._eventHandlers[i]=l[i]))}return r(e,[{key:"send",value:function(){var e=this,t=new a(this._ua,this._request,{onRequestTimeout:function(){e._eventHandlers.onRequestTimeout()},onTransportError:function(){e._eventHandlers.onTransportError()},onAuthenticated:function(t){e._eventHandlers.onAuthenticated(t)},onReceiveResponse:function(t){e._receiveResponse(t)}});if(t.send(),(this._request.method===i.INVITE||this._request.method===i.UPDATE&&this._request.body)&&t.clientTransaction.state!==s.C.STATUS_TERMINATED){this._dialog.uac_pending_reply=!0;t.clientTransaction.on("stateChanged",function n(){t.clientTransaction.state!==s.C.STATUS_ACCEPTED&&t.clientTransaction.state!==s.C.STATUS_COMPLETED&&t.clientTransaction.state!==s.C.STATUS_TERMINATED||(t.clientTransaction.removeListener("stateChanged",n),e._dialog.uac_pending_reply=!1)})}}},{key:"_receiveResponse",value:function(e){var t=this;408===e.status_code||481===e.status_code?this._eventHandlers.onDialogError(e):e.method===i.INVITE&&491===e.status_code?this._reattempt?e.status_code>=200&&e.status_code<300?this._eventHandlers.onSuccessResponse(e):e.status_code>=300&&this._eventHandlers.onErrorResponse(e):(this._request.cseq.value=this._dialog.local_seqnum+=1,this._reattemptTimer=setTimeout(function(){t._dialog.owner.status!==o.C.STATUS_TERMINATED&&(t._reattempt=!0,t._request_sender.send())},1e3)):e.status_code>=200&&e.status_code<300?this._eventHandlers.onSuccessResponse(e):e.status_code>=300&&this._eventHandlers.onErrorResponse(e)}},{key:"request",get:function(){return this._request}}]),e}()},{"../Constants":2,"../RTCSession":12,"../RequestSender":18,"../Transactions":22}],5:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("./Utils"),s=e("debug")("JsSIP:DigestAuthentication"),o=e("debug")("JsSIP:ERROR:DigestAuthentication");o.log=console.warn.bind(console),t.exports=function(){function e(t){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._credentials=t,this._cnonce=null,this._nc=0,this._ncHex="00000000",this._algorithm=null,this._realm=null,this._nonce=null,this._opaque=null,this._stale=null,this._qop=null,this._method=null,this._uri=null,this._ha1=null,this._response=null}return r(e,[{key:"get",value:function(e){switch(e){case"realm":return this._realm;case"ha1":return this._ha1;default:return void o('get() | cannot get "%s" parameter',e)}}},{key:"authenticate",value:function(e,t){var n=e.method,r=e.ruri,a=e.body,l=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null;if(this._algorithm=t.algorithm,this._realm=t.realm,this._nonce=t.nonce,this._opaque=t.opaque,this._stale=t.stale,this._algorithm){if("MD5"!==this._algorithm)return o('authenticate() | challenge with Digest algorithm different than "MD5", authentication aborted'),!1}else this._algorithm="MD5";if(!this._nonce)return o("authenticate() | challenge without Digest nonce, authentication aborted"),!1;if(!this._realm)return o("authenticate() | challenge without Digest realm, authentication aborted"),!1;if(!this._credentials.password){if(!this._credentials.ha1)return o("authenticate() | no plain SIP password nor ha1 provided, authentication aborted"),!1;if(this._credentials.realm!==this._realm)return o('authenticate() | no plain SIP password, and stored `realm` does not match the given `realm`, cannot authenticate [stored:"%s", given:"%s"]',this._credentials.realm,this._realm),!1}if(t.qop)if(t.qop.indexOf("auth-int")>-1)this._qop="auth-int";else{if(!(t.qop.indexOf("auth")>-1))return o('authenticate() | challenge without Digest qop different than "auth" or "auth-int", authentication aborted'),!1;this._qop="auth"}else this._qop=null;this._method=n,this._uri=r,this._cnonce=l||i.createRandomToken(12),this._nc+=1;var u=Number(this._nc).toString(16);this._ncHex="00000000".substr(0,8-u.length)+u,4294967296===this._nc&&(this._nc=1,this._ncHex="00000001"),this._credentials.password?this._ha1=i.calculateMD5(this._credentials.username+":"+this._realm+":"+this._credentials.password):this._ha1=this._credentials.ha1;var c=void 0;return"auth"===this._qop?(c=i.calculateMD5(this._method+":"+this._uri),this._response=i.calculateMD5(this._ha1+":"+this._nonce+":"+this._ncHex+":"+this._cnonce+":auth:"+c)):"auth-int"===this._qop?(c=i.calculateMD5(this._method+":"+this._uri+":"+i.calculateMD5(a||"")),this._response=i.calculateMD5(this._ha1+":"+this._nonce+":"+this._ncHex+":"+this._cnonce+":auth-int:"+c)):null===this._qop&&(c=i.calculateMD5(this._method+":"+this._uri),this._response=i.calculateMD5(this._ha1+":"+this._nonce+":"+c)),s("authenticate() | response generated"),!0}},{key:"toString",value:function(){var e=[];if(!this._response)throw new Error("response field does not exist, cannot generate Authorization header");return e.push("algorithm="+this._algorithm),e.push('username="'+this._credentials.username+'"'),e.push('realm="'+this._realm+'"'),e.push('nonce="'+this._nonce+'"'),e.push('uri="'+this._uri+'"'),e.push('response="'+this._response+'"'),this._opaque&&e.push('opaque="'+this._opaque+'"'),this._qop&&(e.push("qop="+this._qop),e.push('cnonce="'+this._cnonce+'"'),e.push("nc="+this._ncHex)),"Digest "+e.join(", ")}}]),e}()},{"./Utils":26,debug:29}],6:[function(e,t,n){"use strict";function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function i(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}function s(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}var o=function(e){function t(e,n){r(this,t);var s=i(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return s.code=1,s.name="CONFIGURATION_ERROR",s.parameter=e,s.value=n,s.message=s.value?"Invalid value "+JSON.stringify(s.value)+' for parameter "'+s.parameter+'"':"Missing parameter: "+s.parameter,s}return s(t,Error),t}(),a=function(e){function t(e){r(this,t);var n=i(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return n.code=2,n.name="INVALID_STATE_ERROR",n.status=e,n.message="Invalid status: "+e,n}return s(t,Error),t}(),l=function(e){function t(e){r(this,t);var n=i(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return n.code=3,n.name="NOT_SUPPORTED_ERROR",n.message=e,n}return s(t,Error),t}(),u=function(e){function t(e){r(this,t);var 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e=null,Un=i;return e},Record_Route:function(){var e,t,n,r,i,s,o;if(i=Un,s=Un,null!==(e=Qt())){for(t=[],o=Un,null!==(n=M())&&null!==(r=Qt())?n=[n,r]:(n=null,Un=o);null!==n;)t.push(n),o=Un,null!==(n=M())&&null!==(r=Qt())?n=[n,r]:(n=null,Un=o);null!==t?e=[e,t]:(e=null,Un=s)}else e=null,Un=s;return null!==e&&(e=function(e){var t,n;for(n=jn.multi_header.length,t=0;t<n;t++)if(null===jn.multi_header[t].parsed){jn=null;break}jn=null!==jn?jn.multi_header:-1}()),null===e&&(Un=i),e},rec_route:Qt,Reason:function(){var e,t,r,s,o,a,l;if(o=Un,a=Un,"sip"===n.substr(Un,3).toLowerCase()?(e=n.substr(Un,3),Un+=3):(e=null,0===Mn&&i('"SIP"')),null===e&&(e=A()),null!==e){for(t=[],l=Un,null!==(r=L())&&null!==(s=Zt())?r=[r,s]:(r=null,Un=l);null!==r;)t.push(r),l=Un,null!==(r=L())&&null!==(s=Zt())?r=[r,s]:(r=null,Un=l);null!==t?e=[e,t]:(e=null,Un=a)}else e=null,Un=a;return null!==e&&(e=function(e,t){if(jn.protocol=t.toLowerCase(),jn.params||(jn.params={}),jn.params.text&&'"'===jn.params.text[0]){var n=jn.params.text;jn.text=n.substring(1,n.length-1),delete jn.params.text}}(0,e[0])),null===e&&(Un=o),e},reason_param:Zt,reason_cause:en,Require:function(){var e,t,n,r,i,s;if(i=Un,null!==(e=A())){for(t=[],s=Un,null!==(n=M())&&null!==(r=A())?n=[n,r]:(n=null,Un=s);null!==n;)t.push(n),s=Un,null!==(n=M())&&null!==(r=A())?n=[n,r]:(n=null,Un=s);null!==t?e=[e,t]:(e=null,Un=i)}else e=null,Un=i;return e},Route:function(){var e,t,n,r,i,s;if(i=Un,null!==(e=tn())){for(t=[],s=Un,null!==(n=M())&&null!==(r=tn())?n=[n,r]:(n=null,Un=s);null!==n;)t.push(n),s=Un,null!==(n=M())&&null!==(r=tn())?n=[n,r]:(n=null,Un=s);null!==t?e=[e,t]:(e=null,Un=i)}else e=null,Un=i;return e},route_param:tn,Subscription_State:function(){var e,t,n,r,i,s;if(i=Un,null!==(e=nn())){for(t=[],s=Un,null!==(n=L())&&null!==(r=rn())?n=[n,r]:(n=null,Un=s);null!==n;)t.push(n),s=Un,null!==(n=L())&&null!==(r=rn())?n=[n,r]:(n=null,Un=s);null!==t?e=[e,t]:(e=null,Un=i)}else e=null,Un=i;return e},substate_value:nn,subexp_params:rn,event_reason_value:sn,Subject:function(){var e;return e=S(),e=null!==e?e:""},Supported:function(){var e,t,n,r,i,s;if(i=Un,null!==(e=A())){for(t=[],s=Un,null!==(n=M())&&null!==(r=A())?n=[n,r]:(n=null,Un=s);null!==n;)t.push(n),s=Un,null!==(n=M())&&null!==(r=A())?n=[n,r]:(n=null,Un=s);null!==t?e=[e,t]:(e=null,Un=i)}else e=null,Un=i;return e=null!==e?e:""},To:function(){var e,t,n,r,i,s,o;if(i=Un,s=Un,null===(e=K())&&(e=ht()),null!==e){for(t=[],o=Un,null!==(n=L())&&null!==(r=on())?n=[n,r]:(n=null,Un=o);null!==n;)t.push(n),o=Un,null!==(n=L())&&null!==(r=on())?n=[n,r]:(n=null,Un=o);null!==t?e=[e,t]:(e=null,Un=s)}else e=null,Un=s;return null!==e&&(e=function(e){var t=jn.tag;try{jn=new Fn(jn.uri,jn.display_name,jn.params),t&&jn.setParam("tag",t)}catch(e){jn=-1}}()),null===e&&(Un=i),e},to_param:on,Via:function(){var e,t,n,r,i,s;if(i=Un,null!==(e=an())){for(t=[],s=Un,null!==(n=M())&&null!==(r=an())?n=[n,r]:(n=null,Un=s);null!==n;)t.push(n),s=Un,null!==(n=M())&&null!==(r=an())?n=[n,r]:(n=null,Un=s);null!==t?e=[e,t]:(e=null,Un=i)}else e=null,Un=i;return e},via_param:an,via_params:ln,via_ttl:un,via_maddr:cn,via_received:dn,via_branch:hn,response_port:fn,sent_protocol:pn,protocol_name:_n,transport:mn,sent_by:vn,via_host:gn,via_port:yn,ttl:Tn,WWW_Authenticate:function(){return Lt()},Session_Expires:function(){var e,t,n,r,i,s;if(i=Un,null!==(e=Cn())){for(t=[],s=Un,null!==(n=L())&&null!==(r=Sn())?n=[n,r]:(n=null,Un=s);null!==n;)t.push(n),s=Un,null!==(n=L())&&null!==(r=Sn())?n=[n,r]:(n=null,Un=s);null!==t?e=[e,t]:(e=null,Un=i)}else e=null,Un=i;return e},s_e_expires:Cn,s_e_params:Sn,s_e_refresher:En,extension_header:function(){var e,t,n,r;return r=Un,null!==(e=A())&&null!==(t=C())&&null!==(n=bn())?e=[e,t,n]:(e=null,Un=r),e},header_value:bn,message_body:function(){var e,t;for(e=[],t=c();null!==t;)e.push(t),t=c();return e},uuid_URI:function(){var e,t,r;return r=Un,"uuid:"===n.substr(Un,5)?(e="uuid:",Un+=5):(e=null,0===Mn&&i('"uuid:"')),null!==e&&null!==(t=Rn())?e=[e,t]:(e=null,Un=r),e},uuid:Rn,hex4:An,hex8:wn,hex12:In,Refer_To:function(){var e,t,n,r,i,s,o;if(i=Un,s=Un,null===(e=K())&&(e=ht()),null!==e){for(t=[],o=Un,null!==(n=L())&&null!==(r=yt())?n=[n,r]:(n=null,Un=o);null!==n;)t.push(n),o=Un,null!==(n=L())&&null!==(r=yt())?n=[n,r]:(n=null,Un=o);null!==t?e=[e,t]:(e=null,Un=s)}else e=null,Un=s;return null!==e&&(e=function(e){try{jn=new Fn(jn.uri,jn.display_name,jn.params)}catch(e){jn=-1}}()),null===e&&(Un=i),e},Replaces:function(){var e,t,n,r,i,s;if(i=Un,null!==(e=kn())){for(t=[],s=Un,null!==(n=L())&&null!==(r=Pn())?n=[n,r]:(n=null,Un=s);null!==n;)t.push(n),s=Un,null!==(n=L())&&null!==(r=Pn())?n=[n,r]:(n=null,Un=s);null!==t?e=[e,t]:(e=null,Un=i)}else e=null,Un=i;return e},call_id:kn,replaces_param:Pn,to_tag:On,from_tag:xn,early_flag:Nn};if(void 0!==r){if(void 0===Dn[r])throw new Error("Invalid rule name: "+t(r)+".")}else r="CRLF";var Un=0,Mn=0,Ln=0,qn=[],Hn=e("./URI"),Fn=e("./NameAddrHeader"),jn={};if(null===Dn[r]()||Un!==n.length){var Gn=Math.max(Un,Ln),Bn=Gn<n.length?n.charAt(Gn):null,Wn=function(){for(var e=1,t=1,r=!1,i=0;i<Math.max(Un,Ln);i++){var s=n.charAt(i);"\n"===s?(r||e++,t=1,r=!1):"\r"===s||"\u2028"===s||"\u2029"===s?(e++,t=1,r=!0):(t++,r=!1)}return{line:e,column:t}}();return new this.SyntaxError(function(e){e.sort();for(var t=null,n=[],r=0;r<e.length;r++)e[r]!==t&&(n.push(e[r]),t=e[r]);return n}(qn),Bn,Gn,Wn.line,Wn.column),-1}return jn},toSource:function(){return this._source}};return n.SyntaxError=function(e,n,r,i,s){this.name="SyntaxError",this.expected=e,this.found=n,this.message=function(e,n){var r,i;switch(e.length){case 0:r="end of input";break;case 1:r=e[0];break;default:r=e.slice(0,e.length-1).join(", ")+" or "+e[e.length-1]}return i=n?t(n):"end of input","Expected "+r+" but "+i+" found."}(e,n),this.offset=r,this.line=i,this.column=s},n.SyntaxError.prototype=Error.prototype,n}()},{"./NameAddrHeader":10,"./URI":25}],8:[function(e,t,n){"use strict";var r=e("webrtc-adapter"),i=e("../package.json"),s=e("./Constants"),o=e("./Exceptions"),a=e("./Utils"),l=e("./UA"),u=e("./URI"),c=e("./NameAddrHeader"),d=e("./Grammar"),h=e("./WebSocketInterface");e("debug")("JsSIP")("version %s",i.version),t.exports={C:s,Exceptions:o,Utils:a,UA:l,URI:u,NameAddrHeader:c,WebSocketInterface:h,Grammar:d,debug:e("debug"),adapter:r,get name(){return i.title},get version(){return i.version}}},{"../package.json":51,"./Constants":2,"./Exceptions":6,"./Grammar":7,"./NameAddrHeader":10,"./UA":24,"./URI":25,"./Utils":26,"./WebSocketInterface":27,debug:29,"webrtc-adapter":40}],9:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("events").EventEmitter,s=e("./Constants"),o=e("./SIPMessage"),a=e("./Utils"),l=e("./RequestSender"),u=e("./Exceptions"),c=e("debug")("JsSIP:Message");t.exports=function(e){function t(e){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t);var n=function(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return n._ua=e,n._request=null,n._closed=!1,n._direction=null,n._local_identity=null,n._remote_identity=null,n._is_replied=!1,n._data={},n}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(t,i),r(t,[{key:"send",value:function(e,t){var n=this,r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{},i=e;if(void 0===e||void 0===t)throw new TypeError("Not enough arguments");if(!(e=this._ua.normalizeTarget(e)))throw new TypeError("Invalid target: "+i);var u=a.cloneArray(r.extraHeaders),c=r.eventHandlers||{},d=r.contentType||"text/plain";for(var h in c)Object.prototype.hasOwnProperty.call(c,h)&&this.on(h,c[h]);u.push("Content-Type: "+d),this._request=new o.OutgoingRequest(s.MESSAGE,e,this._ua,null,u),t&&(this._request.body=t);var f=new l(this._ua,this._request,{onRequestTimeout:function(){n._onRequestTimeout()},onTransportError:function(){n._onTransportError()},onReceiveResponse:function(e){n._receiveResponse(e)}});this._newMessage("local",this._request),f.send()}},{key:"init_incoming",value:function(e){this._request=e,this._newMessage("remote",e),this._is_replied||(this._is_replied=!0,e.reply(200)),this._close()}},{key:"accept",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=a.cloneArray(e.extraHeaders),n=e.body;if("incoming"!==this._direction)throw new u.NotSupportedError('"accept" not supported for outgoing Message');if(this._is_replied)throw new Error("incoming Message already replied");this._is_replied=!0,this._request.reply(200,null,t,n)}},{key:"reject",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=e.status_code||480,n=e.reason_phrase,r=a.cloneArray(e.extraHeaders),i=e.body;if("incoming"!==this._direction)throw new u.NotSupportedError('"reject" not supported for outgoing Message');if(this._is_replied)throw new Error("incoming Message already replied");if(t<300||t>=700)throw new TypeError("Invalid status_code: "+t);this._is_replied=!0,this._request.reply(t,n,r,i)}},{key:"_receiveResponse",value:function(e){if(!this._closed)switch(!0){case/^1[0-9]{2}$/.test(e.status_code):break;case/^2[0-9]{2}$/.test(e.status_code):this._succeeded("remote",e);break;default:var t=a.sipErrorCause(e.status_code);this._failed("remote",e,t)}}},{key:"_onRequestTimeout",value:function(){this._closed||this._failed("system",null,s.causes.REQUEST_TIMEOUT)}},{key:"_onTransportError",value:function(){this._closed||this._failed("system",null,s.causes.CONNECTION_ERROR)}},{key:"_close",value:function(){this._closed=!0,this._ua.destroyMessage(this)}},{key:"_newMessage",value:function(e,t){"remote"===e?(this._direction="incoming",this._local_identity=t.to,this._remote_identity=t.from):"local"===e&&(this._direction="outgoing",this._local_identity=t.from,this._remote_identity=t.to),this._ua.newMessage(this,{originator:e,message:this,request:t})}},{key:"_failed",value:function(e,t,n){c("MESSAGE failed"),this._close(),c('emit "failed"'),this.emit("failed",{originator:e,response:t||null,cause:n})}},{key:"_succeeded",value:function(e,t){c("MESSAGE succeeded"),this._close(),c('emit "succeeded"'),this.emit("succeeded",{originator:e,response:t})}},{key:"direction",get:function(){return this._direction}},{key:"local_identity",get:function(){return this._local_identity}},{key:"remote_identity",get:function(){return this._remote_identity}}]),t}()},{"./Constants":2,"./Exceptions":6,"./RequestSender":18,"./SIPMessage":19,"./Utils":26,debug:29,events:31}],10:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("./URI"),s=e("./Grammar");t.exports=function(){function e(t,n,r){if(function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),!(t&&t instanceof i))throw new TypeError('missing or invalid "uri" parameter');this._uri=t,this._parameters={},this._display_name=n;for(var s in r)Object.prototype.hasOwnProperty.call(r,s)&&this.setParam(s,r[s])}return r(e,null,[{key:"parse",value:function(e){return-1!==(e=s.parse(e,"Name_Addr_Header"))?e:void 0}}]),r(e,[{key:"setParam",value:function(e,t){e&&(this._parameters[e.toLowerCase()]=void 0===t||null===t?null:t.toString())}},{key:"getParam",value:function(e){if(e)return this._parameters[e.toLowerCase()]}},{key:"hasParam",value:function(e){if(e)return this._parameters.hasOwnProperty(e.toLowerCase())&&!0||!1}},{key:"deleteParam",value:function(e){if(e=e.toLowerCase(),this._parameters.hasOwnProperty(e)){var t=this._parameters[e];return delete this._parameters[e],t}}},{key:"clearParams",value:function(){this._parameters={}}},{key:"clone",value:function(){return new e(this._uri.clone(),this._display_name,JSON.parse(JSON.stringify(this._parameters)))}},{key:"toString",value:function(){var e=this._display_name||0===this._display_name?'"'+this._display_name+'" ':"";e+="<"+this._uri.toString()+">";for(var t in this._parameters)Object.prototype.hasOwnProperty.call(this._parameters,t)&&(e+=";"+t,null!==this._parameters[t]&&(e+="="+this._parameters[t]));return e}},{key:"uri",get:function(){return this._uri}},{key:"display_name",get:function(){return this._display_name},set:function(e){this._display_name=0===e?"0":e}}]),e}()},{"./Grammar":7,"./URI":25}],11:[function(e,t,n){"use strict";var r=e("./Grammar"),i=e("./SIPMessage"),s=e("debug")("JsSIP:ERROR:Parser");s.log=console.warn.bind(console),n.parseMessage=function(e,t){var n=void 0,o=void 0,a=e.indexOf("\r\n");if(-1!==a){var l=e.substring(0,a),u=r.parse(l,"Request_Response");if(-1!==u){u.status_code?((n=new i.IncomingResponse).status_code=u.status_code,n.reason_phrase=u.reason_phrase):((n=new i.IncomingRequest(t)).method=u.method,n.ruri=u.uri),n.data=e;for(var c=a+2;;){if(-2===(a=function(e,t){var n=t,r=0,i=0;if(e.substring(n,n+2).match(/(^\r\n)/))return-2;for(;0===r;){if(-1===(i=e.indexOf("\r\n",n)))return i;!e.substring(i+2,i+4).match(/(^\r\n)/)&&e.charAt(i+2).match(/(^\s+)/)?n=i+2:r=i}return r}(e,c))){o=c+2;break}if(-1===a)return void s("parseMessage() | malformed message");if(!0!==(u=function(e,t,n,s){var o=void 0,a=t.indexOf(":",n),l=t.substring(n,a).trim(),u=t.substring(a+1,s).trim();switch(l.toLowerCase()){case"via":case"v":e.addHeader("via",u),1===e.getHeaders("via").length?(o=e.parseHeader("Via"))&&(e.via=o,e.via_branch=o.branch):o=0;break;case"from":case"f":e.setHeader("from",u),(o=e.parseHeader("from"))&&(e.from=o,e.from_tag=o.getParam("tag"));break;case"to":case"t":e.setHeader("to",u),(o=e.parseHeader("to"))&&(e.to=o,e.to_tag=o.getParam("tag"));break;case"record-route":if(-1===(o=r.parse(u,"Record_Route")))o=void 0;else{var c=!0,d=!1,h=void 0;try{for(var f,p=o[Symbol.iterator]();!(c=(f=p.next()).done);c=!0){var _=f.value;e.addHeader("record-route",u.substring(_.possition,_.offset)),e.headers["Record-Route"][e.getHeaders("record-route").length-1].parsed=_.parsed}}catch(e){d=!0,h=e}finally{try{!c&&p.return&&p.return()}finally{if(d)throw h}}}break;case"call-id":case"i":e.setHeader("call-id",u),(o=e.parseHeader("call-id"))&&(e.call_id=u);break;case"contact":case"m":if(-1===(o=r.parse(u,"Contact")))o=void 0;else{var m=!0,v=!1,g=void 0;try{for(var y,T=o[Symbol.iterator]();!(m=(y=T.next()).done);m=!0){var C=y.value;e.addHeader("contact",u.substring(C.possition,C.offset)),e.headers.Contact[e.getHeaders("contact").length-1].parsed=C.parsed}}catch(e){v=!0,g=e}finally{try{!m&&T.return&&T.return()}finally{if(v)throw g}}}break;case"content-length":case"l":e.setHeader("content-length",u),o=e.parseHeader("content-length");break;case"content-type":case"c":e.setHeader("content-type",u),o=e.parseHeader("content-type");break;case"cseq":e.setHeader("cseq",u),(o=e.parseHeader("cseq"))&&(e.cseq=o.value),e instanceof i.IncomingResponse&&(e.method=o.method);break;case"max-forwards":e.setHeader("max-forwards",u),o=e.parseHeader("max-forwards");break;case"www-authenticate":e.setHeader("www-authenticate",u),o=e.parseHeader("www-authenticate");break;case"proxy-authenticate":e.setHeader("proxy-authenticate",u),o=e.parseHeader("proxy-authenticate");break;case"session-expires":case"x":e.setHeader("session-expires",u),(o=e.parseHeader("session-expires"))&&(e.session_expires=o.expires,e.session_expires_refresher=o.refresher);break;case"refer-to":case"r":e.setHeader("refer-to",u),(o=e.parseHeader("refer-to"))&&(e.refer_to=o);break;case"replaces":e.setHeader("replaces",u),(o=e.parseHeader("replaces"))&&(e.replaces=o);break;case"event":case"o":e.setHeader("event",u),(o=e.parseHeader("event"))&&(e.event=o);break;default:e.setHeader(l,u),o=0}return void 0!==o||{error:'error parsing header "'+l+'"'}}(n,e,c,a)))return void s("parseMessage() |",u.error);c=a+2}if(n.hasHeader("content-length")){var d=n.getHeader("content-length");n.body=e.substr(o,d)}else n.body=e.substring(o);return n}s('parseMessage() | error parsing first line of SIP message: "'+l+'"')}else s("parseMessage() | no CRLF found, not a SIP message")}},{"./Grammar":7,"./SIPMessage":19,debug:29}],12:[function(e,t,n){"use strict";var r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e},i=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),s=e("events").EventEmitter,o=e("sdp-transform"),a=e("./Constants"),l=e("./Exceptions"),u=e("./Transactions"),c=e("./Utils"),d=e("./Timers"),h=e("./SIPMessage"),f=e("./Dialog"),p=e("./RequestSender"),_=e("./RTCSession/DTMF"),m=e("./RTCSession/Info"),v=e("./RTCSession/ReferNotifier"),g=e("./RTCSession/ReferSubscriber"),y=e("debug")("JsSIP:RTCSession"),T=e("debug")("JsSIP:ERROR:RTCSession");T.log=console.warn.bind(console);var C={STATUS_NULL:0,STATUS_INVITE_SENT:1,STATUS_1XX_RECEIVED:2,STATUS_INVITE_RECEIVED:3,STATUS_WAITING_FOR_ANSWER:4,STATUS_ANSWERED:5,STATUS_WAITING_FOR_ACK:6,STATUS_CANCELED:7,STATUS_TERMINATED:8,STATUS_CONFIRMED:9},S=["audio","video"];t.exports=function(e){function t(e){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t),y("new");var n=function(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return n._id=null,n._ua=e,n._status=C.STATUS_NULL,n._dialog=null,n._earlyDialogs={},n._contact=null,n._from_tag=null,n._to_tag=null,n._connection=null,n._connectionPromiseQueue=Promise.resolve(),n._request=null,n._is_canceled=!1,n._cancel_reason="",n._is_confirmed=!1,n._late_sdp=!1,n._rtcOfferConstraints=null,n._rtcAnswerConstraints=null,n._localMediaStream=null,n._localMediaStreamLocallyGenerated=!1,n._rtcReady=!0,n._timers={ackTimer:null,expiresTimer:null,invite2xxTimer:null,userNoAnswerTimer:null},n._direction=null,n._local_identity=null,n._remote_identity=null,n._start_time=null,n._end_time=null,n._tones=null,n._audioMuted=!1,n._videoMuted=!1,n._localHold=!1,n._remoteHold=!1,n._sessionTimers={enabled:n._ua.configuration.session_timers,refreshMethod:n._ua.configuration.session_timers_refresh_method,defaultExpires:a.SESSION_EXPIRES,currentExpires:null,running:!1,refresher:!1,timer:null},n._referSubscribers={},n._data={},n}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(t,s),i(t,null,[{key:"C",get:function(){return C}}]),i(t,[{key:"isInProgress",value:function(){switch(this._status){case C.STATUS_NULL:case C.STATUS_INVITE_SENT:case C.STATUS_1XX_RECEIVED:case C.STATUS_INVITE_RECEIVED:case C.STATUS_WAITING_FOR_ANSWER:return!0;default:return!1}}},{key:"isEstablished",value:function(){switch(this._status){case C.STATUS_ANSWERED:case C.STATUS_WAITING_FOR_ACK:case C.STATUS_CONFIRMED:return!0;default:return!1}}},{key:"isEnded",value:function(){switch(this._status){case C.STATUS_CANCELED:case C.STATUS_TERMINATED:return!0;default:return!1}}},{key:"isMuted",value:function(){return{audio:this._audioMuted,video:this._videoMuted}}},{key:"isOnHold",value:function(){return{local:this._localHold,remote:this._remoteHold}}},{key:"connect",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=arguments[2];y("connect()");var r=e,i=t.eventHandlers||{},s=c.cloneArray(t.extraHeaders),o=t.mediaConstraints||{audio:!0,video:!0},u=t.mediaStream||null,d=t.pcConfig||{iceServers:[]},f=t.rtcConstraints||null,p=t.rtcOfferConstraints||null;if(this._rtcOfferConstraints=p,this._rtcAnswerConstraints=t.rtcAnswerConstraints||null,this._data=t.data||this._data,void 0===e)throw new TypeError("Not enough arguments");if(this._status!==C.STATUS_NULL)throw new l.InvalidStateError(this._status);if(!window.RTCPeerConnection)throw new l.NotSupportedError("WebRTC not supported");if(!(e=this._ua.normalizeTarget(e)))throw new TypeError("Invalid target: "+r);this._sessionTimers.enabled&&c.isDecimal(t.sessionTimersExpires)&&(t.sessionTimersExpires>=a.MIN_SESSION_EXPIRES?this._sessionTimers.defaultExpires=t.sessionTimersExpires:this._sessionTimers.defaultExpires=a.SESSION_EXPIRES);for(var _ in i)Object.prototype.hasOwnProperty.call(i,_)&&this.on(_,i[_]);this._from_tag=c.newTag();var m=t.anonymous||!1,v={from_tag:this._from_tag};this._contact=this._ua.contact.toString({anonymous:m,outbound:!0}),m&&(v.from_display_name="Anonymous",v.from_uri="sip:anonymous@anonymous.invalid",s.push("P-Preferred-Identity: "+this._ua.configuration.uri.toString()),s.push("Privacy: id")),s.push("Contact: "+this._contact),s.push("Content-Type: application/sdp"),this._sessionTimers.enabled&&s.push("Session-Expires: "+this._sessionTimers.defaultExpires),this._request=new h.InitialOutgoingInviteRequest(e,this._ua,v,s),this._id=this._request.call_id+this._from_tag,this._createRTCConnection(d,f),this._direction="outgoing",this._local_identity=this._request.from,this._remote_identity=this._request.to,n&&n(this),this._newRTCSession("local",this._request),this._sendInitialRequest(o,p,u)}},{key:"init_incoming",value:function(e,t){var n=this;y("init_incoming()");var r=void 0,i=e.getHeader("Content-Type");e.body&&"application/sdp"!==i?e.reply(415):(this._status=C.STATUS_INVITE_RECEIVED,this._from_tag=e.from_tag,this._id=e.call_id+this._from_tag,this._request=e,this._contact=this._ua.contact.toString(),e.hasHeader("expires")&&(r=1e3*e.getHeader("expires")),e.to_tag=c.newTag(),this._createDialog(e,"UAS",!0)?(e.body?this._late_sdp=!1:this._late_sdp=!0,this._status=C.STATUS_WAITING_FOR_ANSWER,this._timers.userNoAnswerTimer=setTimeout(function(){e.reply(408),n._failed("local",null,a.causes.NO_ANSWER)},this._ua.configuration.no_answer_timeout),r&&(this._timers.expiresTimer=setTimeout(function(){n._status===C.STATUS_WAITING_FOR_ANSWER&&(e.reply(487),n._failed("system",null,a.causes.EXPIRES))},r)),this._direction="incoming",this._local_identity=e.to,this._remote_identity=e.from,t&&t(this),this._newRTCSession("remote",e),this._status!==C.STATUS_TERMINATED&&(e.reply(180,null,["Contact: "+this._contact]),this._progress("local",null))):e.reply(500,"Missing Contact header field"))}},{key:"answer",value:function(){function e(e){var n=this;if(this._status!==C.STATUS_TERMINATED)if(this._localMediaStream=e,e&&this._connection.addStream(e),this._late_sdp)t.call(this);else{var r={originator:"remote",type:"offer",sdp:o.body};y('emit "sdp"'),this.emit("sdp",r);var i=new RTCSessionDescription({type:"offer",sdp:r.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return n._connection.setRemoteDescription(i)}).then(t.bind(this)).catch(function(e){o.reply(488),n._failed("system",null,a.causes.WEBRTC_ERROR),T('emit "peerconnection:setremotedescriptionfailed" [error:%o]',e),n.emit("peerconnection:setremotedescriptionfailed",e)})}}function t(){this._connecting(o),this._late_sdp?this._createLocalDescription("offer",n.bind(this),r.bind(this),this._rtcOfferConstraints):this._createLocalDescription("answer",n.bind(this),r.bind(this),_)}function n(e){this._status!==C.STATUS_TERMINATED&&(this._handleSessionTimersInIncomingRequest(o,u),o.reply(200,null,u,e,function(){this._status=C.STATUS_WAITING_FOR_ACK,this._setInvite2xxTimer(o,e),this._setACKTimer(),this._accepted("local")}.bind(this),function(){this._failed("system",null,a.causes.CONNECTION_ERROR)}.bind(this)))}function r(){this._status!==C.STATUS_TERMINATED&&(o.reply(500),this._failed("system",null,a.causes.WEBRTC_ERROR))}var i=this,s=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};y("answer()");var o=this._request,u=c.cloneArray(s.extraHeaders),d=s.mediaConstraints||{},h=s.mediaStream||null,f=s.pcConfig||{iceServers:[]},p=s.rtcConstraints||null,_=s.rtcAnswerConstraints||null,m=void 0,v=!1,g=!1,S=!1,E=!1;if(this._rtcAnswerConstraints=_,this._rtcOfferConstraints=s.rtcOfferConstraints||null,this._data=s.data||this._data,"incoming"!==this._direction)throw new l.NotSupportedError('"answer" not supported for outgoing RTCSession');if(this._status!==C.STATUS_WAITING_FOR_ANSWER)throw new l.InvalidStateError(this._status);if(this._sessionTimers.enabled&&c.isDecimal(s.sessionTimersExpires)&&(s.sessionTimersExpires>=a.MIN_SESSION_EXPIRES?this._sessionTimers.defaultExpires=s.sessionTimersExpires:this._sessionTimers.defaultExpires=a.SESSION_EXPIRES),this._status=C.STATUS_ANSWERED,this._createDialog(o,"UAS")){clearTimeout(this._timers.userNoAnswerTimer),u.unshift("Contact: "+this._contact);var b=o.parseSDP();Array.isArray(b.media)||(b.media=[b.media]);var R=!0,A=!1,w=void 0;try{for(var I,k=b.media[Symbol.iterator]();!(R=(I=k.next()).done);R=!0){var P=I.value;"audio"===P.type&&(v=!0,P.direction&&"sendrecv"!==P.direction||(S=!0)),"video"===P.type&&(g=!0,P.direction&&"sendrecv"!==P.direction||(E=!0))}}catch(e){A=!0,w=e}finally{try{!R&&k.return&&k.return()}finally{if(A)throw w}}if(h&&!1===d.audio){m=h.getAudioTracks();var O=!0,x=!1,N=void 0;try{for(var D,U=m[Symbol.iterator]();!(O=(D=U.next()).done);O=!0){var M=D.value;h.removeTrack(M)}}catch(e){x=!0,N=e}finally{try{!O&&U.return&&U.return()}finally{if(x)throw N}}}if(h&&!1===d.video){m=h.getVideoTracks();var L=!0,q=!1,H=void 0;try{for(var F,j=m[Symbol.iterator]();!(L=(F=j.next()).done);L=!0){var G=F.value;h.removeTrack(G)}}catch(e){q=!0,H=e}finally{try{!L&&j.return&&j.return()}finally{if(q)throw H}}}h||void 0!==d.audio||(d.audio=S),h||void 0!==d.video||(d.video=E),h||v||(d.audio=!1),h||g||(d.video=!1),this._createRTCConnection(f,p),h?e.call(this,h):d.audio||d.video?(this._localMediaStreamLocallyGenerated=!0,navigator.mediaDevices.getUserMedia(d).then(e.bind(this)).catch(function(e){(function(){this._status!==C.STATUS_TERMINATED&&(o.reply(480),this._failed("local",null,a.causes.USER_DENIED_MEDIA_ACCESS))}).call(i,e),T('emit "getusermediafailed" [error:%o]',e),i.emit("getusermediafailed",e)})):e.call(this,null)}else o.reply(500,"Error creating dialog")}},{key:"terminate",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};y("terminate()");var n=t.cause||a.causes.BYE,r=c.cloneArray(t.extraHeaders),i=t.body,s=void 0,o=t.status_code,d=t.reason_phrase;if(this._status===C.STATUS_TERMINATED)throw new l.InvalidStateError(this._status);switch(this._status){case C.STATUS_NULL:case C.STATUS_INVITE_SENT:case C.STATUS_1XX_RECEIVED:if(y("canceling session"),o&&(o<200||o>=700))throw new TypeError("Invalid status_code: "+o);o&&(s="SIP ;cause="+o+' ;text="'+(d=d||a.REASON_PHRASE[o]||"")+'"'),this._status===C.STATUS_NULL||this._status===C.STATUS_INVITE_SENT?(this._is_canceled=!0,this._cancel_reason=s):this._status===C.STATUS_1XX_RECEIVED&&this._request.cancel(s),this._status=C.STATUS_CANCELED,this._failed("local",null,a.causes.CANCELED);break;case C.STATUS_WAITING_FOR_ANSWER:case C.STATUS_ANSWERED:if(y("rejecting session"),(o=o||480)<300||o>=700)throw new TypeError("Invalid status_code: "+o);this._request.reply(o,d,r,i),this._failed("local",null,a.causes.REJECTED);break;case C.STATUS_WAITING_FOR_ACK:case C.STATUS_CONFIRMED:if(y("terminating session"),d=t.reason_phrase||a.REASON_PHRASE[o]||"",o&&(o<200||o>=700))throw new TypeError("Invalid status_code: "+o);if(o&&r.push("Reason: SIP ;cause="+o+'; text="'+d+'"'),this._status===C.STATUS_WAITING_FOR_ACK&&"incoming"===this._direction&&this._request.server_transaction.state!==u.C.STATUS_TERMINATED){var h=this._dialog;this.receiveRequest=function(t){t.method===a.ACK&&(e.sendRequest(a.BYE,{extraHeaders:r,body:i}),h.terminate())},this._request.server_transaction.on("stateChanged",function(){e._request.server_transaction.state===u.C.STATUS_TERMINATED&&(e.sendRequest(a.BYE,{extraHeaders:r,body:i}),h.terminate())}),this._ended("local",null,n),this._dialog=h,this._ua.newDialog(h)}else this.sendRequest(a.BYE,{extraHeaders:r,body:i}),this._ended("local",null,n)}}},{key:"sendDTMF",value:function(e){function t(){var e=this,o=void 0;if(this._status===C.STATUS_TERMINATED||!this._tones||r>=this._tones.length)this._tones=null;else{var a=this._tones[r];if(r+=1,","===a)o=2e3;else{var l=new _(this);n.eventHandlers={onFailed:function(){e._tones=null}},l.send(a,n),o=i+s}setTimeout(t.bind(this),o)}}var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};y("sendDTMF() | tones: %s",e);var r=0,i=n.duration||null,s=n.interToneGap||null;if(void 0===e)throw new TypeError("Not enough arguments");if(this._status!==C.STATUS_CONFIRMED&&this._status!==C.STATUS_WAITING_FOR_ACK)throw new l.InvalidStateError(this._status);if("number"==typeof e&&(e=e.toString()),!e||"string"!=typeof e||!e.match(/^[0-9A-DR#*,]+$/i))throw new TypeError("Invalid tones: "+e);if(i&&!c.isDecimal(i))throw new TypeError("Invalid tone duration: "+i);if(i?i<_.C.MIN_DURATION?(y('"duration" value is lower than the minimum allowed, setting it to '+_.C.MIN_DURATION+" milliseconds"),i=_.C.MIN_DURATION):i>_.C.MAX_DURATION?(y('"duration" value is greater than the maximum allowed, setting it to '+_.C.MAX_DURATION+" milliseconds"),i=_.C.MAX_DURATION):i=Math.abs(i):i=_.C.DEFAULT_DURATION,n.duration=i,s&&!c.isDecimal(s))throw new TypeError("Invalid interToneGap: "+s);s?s<_.C.MIN_INTER_TONE_GAP?(y('"interToneGap" value is lower than the minimum allowed, setting it to '+_.C.MIN_INTER_TONE_GAP+" milliseconds"),s=_.C.MIN_INTER_TONE_GAP):s=Math.abs(s):s=_.C.DEFAULT_INTER_TONE_GAP,this._tones?this._tones+=e:(this._tones=e,t.call(this))}},{key:"sendInfo",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};if(y("sendInfo()"),this._status!==C.STATUS_CONFIRMED&&this._status!==C.STATUS_WAITING_FOR_ACK)throw new l.InvalidStateError(this._status);new m(this).send(e,t,n)}},{key:"mute",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{audio:!0,video:!1};y("mute()");var t=!1,n=!1;!1===this._audioMuted&&e.audio&&(t=!0,this._audioMuted=!0,this._toogleMuteAudio(!0)),!1===this._videoMuted&&e.video&&(n=!0,this._videoMuted=!0,this._toogleMuteVideo(!0)),!0!==t&&!0!==n||this._onmute({audio:t,video:n})}},{key:"unmute",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{audio:!0,video:!0};y("unmute()");var t=!1,n=!1;!0===this._audioMuted&&e.audio&&(t=!0,this._audioMuted=!1,!1===this._localHold&&this._toogleMuteAudio(!1)),!0===this._videoMuted&&e.video&&(n=!0,this._videoMuted=!1,!1===this._localHold&&this._toogleMuteVideo(!1)),!0!==t&&!0!==n||this._onunmute({audio:t,video:n})}},{key:"hold",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},n=arguments[1];if(y("hold()"),this._status!==C.STATUS_WAITING_FOR_ACK&&this._status!==C.STATUS_CONFIRMED)return!1;if(!0===this._localHold)return!1;if(!this._isReadyToReOffer())return!1;this._localHold=!0,this._onhold("local");var r={succeeded:function(){n&&n()},failed:function(){e.terminate({cause:a.causes.WEBRTC_ERROR,status_code:500,reason_phrase:"Hold Failed"})}};return t.useUpdate?this._sendUpdate({sdpOffer:!0,eventHandlers:r,extraHeaders:t.extraHeaders}):this._sendReinvite({eventHandlers:r,extraHeaders:t.extraHeaders}),!0}},{key:"unhold",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},n=arguments[1];if(y("unhold()"),this._status!==C.STATUS_WAITING_FOR_ACK&&this._status!==C.STATUS_CONFIRMED)return!1;if(!1===this._localHold)return!1;if(!this._isReadyToReOffer())return!1;this._localHold=!1,this._onunhold("local");var r={succeeded:function(){n&&n()},failed:function(){e.terminate({cause:a.causes.WEBRTC_ERROR,status_code:500,reason_phrase:"Unhold Failed"})}};return t.useUpdate?this._sendUpdate({sdpOffer:!0,eventHandlers:r,extraHeaders:t.extraHeaders}):this._sendReinvite({eventHandlers:r,extraHeaders:t.extraHeaders}),!0}},{key:"renegotiate",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},n=arguments[1];y("renegotiate()");var r=t.rtcOfferConstraints||null;if(this._status!==C.STATUS_WAITING_FOR_ACK&&this._status!==C.STATUS_CONFIRMED)return!1;if(!this._isReadyToReOffer())return!1;var i={succeeded:function(){n&&n()},failed:function(){e.terminate({cause:a.causes.WEBRTC_ERROR,status_code:500,reason_phrase:"Media Renegotiation Failed"})}};return this._setLocalMediaStatus(),t.useUpdate?this._sendUpdate({sdpOffer:!0,eventHandlers:i,rtcOfferConstraints:r,extraHeaders:t.extraHeaders}):this._sendReinvite({eventHandlers:i,rtcOfferConstraints:r,extraHeaders:t.extraHeaders}),!0}},{key:"refer",value:function(e,t){var n=this;y("refer()");var r=e;if(this._status!==C.STATUS_WAITING_FOR_ACK&&this._status!==C.STATUS_CONFIRMED)return!1;if(!(e=this._ua.normalizeTarget(e)))throw new TypeError("Invalid target: "+r);var i=new g(this);i.sendRefer(e,t);var s=i.id;return this._referSubscribers[s]=i,i.on("requestFailed",function(){delete n._referSubscribers[s]}),i.on("accepted",function(){delete n._referSubscribers[s]}),i.on("failed",function(){delete n._referSubscribers[s]}),i}},{key:"sendRequest",value:function(e,t){return y("sendRequest()"),this._dialog.sendRequest(e,t)}},{key:"receiveRequest",value:function(e){var t=this;if(y("receiveRequest()"),e.method===a.CANCEL)this._status!==C.STATUS_WAITING_FOR_ANSWER&&this._status!==C.STATUS_ANSWERED||(this._status=C.STATUS_CANCELED,this._request.reply(487),this._failed("remote",e,a.causes.CANCELED));else switch(e.method){case a.ACK:if(this._status!==C.STATUS_WAITING_FOR_ACK)return;if(this._status=C.STATUS_CONFIRMED,clearTimeout(this._timers.ackTimer),clearTimeout(this._timers.invite2xxTimer),this._late_sdp){if(!e.body){this.terminate({cause:a.causes.MISSING_SDP,status_code:400});break}var n={originator:"remote",type:"answer",sdp:e.body};y('emit "sdp"'),this.emit("sdp",n);var r=new RTCSessionDescription({type:"answer",sdp:n.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._connection.setRemoteDescription(r)}).then(function(){t._is_confirmed||t._confirmed("remote",e)}).catch(function(e){t.terminate({cause:a.causes.BAD_MEDIA_DESCRIPTION,status_code:488}),t.emit("peerconnection:setremotedescriptionfailed",e)})}else this._is_confirmed||this._confirmed("remote",e);break;case a.BYE:this._status===C.STATUS_CONFIRMED?(e.reply(200),this._ended("remote",e,a.causes.BYE)):this._status===C.STATUS_INVITE_RECEIVED?(e.reply(200),this._request.reply(487,"BYE Received"),this._ended("remote",e,a.causes.BYE)):e.reply(403,"Wrong Status");break;case a.INVITE:this._status===C.STATUS_CONFIRMED?e.hasHeader("replaces")?this._receiveReplaces(e):this._receiveReinvite(e):e.reply(403,"Wrong Status");break;case a.INFO:if(this._status===C.STATUS_1XX_RECEIVED||this._status===C.STATUS_WAITING_FOR_ANSWER||this._status===C.STATUS_ANSWERED||this._status===C.STATUS_WAITING_FOR_ACK||this._status===C.STATUS_CONFIRMED){var i=e.getHeader("content-type");i&&i.match(/^application\/dtmf-relay/i)?new _(this).init_incoming(e):void 0!==i?new m(this).init_incoming(e):e.reply(415)}else e.reply(403,"Wrong Status");break;case a.UPDATE:this._status===C.STATUS_CONFIRMED?this._receiveUpdate(e):e.reply(403,"Wrong Status");break;case a.REFER:this._status===C.STATUS_CONFIRMED?this._receiveRefer(e):e.reply(403,"Wrong Status");break;case a.NOTIFY:this._status===C.STATUS_CONFIRMED?this._receiveNotify(e):e.reply(403,"Wrong Status");break;default:e.reply(501)}}},{key:"onTransportError",value:function(){T("onTransportError()"),this._status!==C.STATUS_TERMINATED&&this.terminate({status_code:500,reason_phrase:a.causes.CONNECTION_ERROR,cause:a.causes.CONNECTION_ERROR})}},{key:"onRequestTimeout",value:function(){T("onRequestTimeout()"),this._status!==C.STATUS_TERMINATED&&this.terminate({status_code:408,reason_phrase:a.causes.REQUEST_TIMEOUT,cause:a.causes.REQUEST_TIMEOUT})}},{key:"onDialogError",value:function(){T("onDialogError()"),this._status!==C.STATUS_TERMINATED&&this.terminate({status_code:500,reason_phrase:a.causes.DIALOG_ERROR,cause:a.causes.DIALOG_ERROR})}},{key:"newDTMF",value:function(e){y("newDTMF()"),this.emit("newDTMF",e)}},{key:"newInfo",value:function(e){y("newInfo()"),this.emit("newInfo",e)}},{key:"_isReadyToReOffer",value:function(){return this._rtcReady?this._dialog?!0!==this._dialog.uac_pending_reply&&!0!==this._dialog.uas_pending_reply||(y("_isReadyToReOffer() | there is another INVITE/UPDATE transaction in progress"),!1):(y("_isReadyToReOffer() | session not established yet"),!1):(y("_isReadyToReOffer() | internal WebRTC status not ready"),!1)}},{key:"_close",value:function(){if(y("close()"),this._status!==C.STATUS_TERMINATED){if(this._status=C.STATUS_TERMINATED,this._connection)try{this._connection.close()}catch(e){T("close() | error closing the RTCPeerConnection: %o",e)}this._localMediaStream&&this._localMediaStreamLocallyGenerated&&(y("close() | closing local MediaStream"),c.closeMediaStream(this._localMediaStream));for(var e in this._timers)Object.prototype.hasOwnProperty.call(this._timers,e)&&clearTimeout(this._timers[e]);clearTimeout(this._sessionTimers.timer),this._dialog&&(this._dialog.terminate(),delete this._dialog);for(var t in this._earlyDialogs)Object.prototype.hasOwnProperty.call(this._earlyDialogs,t)&&(this._earlyDialogs[t].terminate(),delete this._earlyDialogs[t]);for(var n in this._referSubscribers)Object.prototype.hasOwnProperty.call(this._referSubscribers,n)&&delete this._referSubscribers[n];this._ua.destroyRTCSession(this)}}},{key:"_setInvite2xxTimer",value:function(e,t){function n(){this._status===C.STATUS_WAITING_FOR_ACK&&(e.reply(200,null,["Contact: "+this._contact],t),r<d.T2&&(r*=2)>d.T2&&(r=d.T2),this._timers.invite2xxTimer=setTimeout(n.bind(this),r))}var r=d.T1;this._timers.invite2xxTimer=setTimeout(n.bind(this),r)}},{key:"_setACKTimer",value:function(){var e=this;this._timers.ackTimer=setTimeout(function(){e._status===C.STATUS_WAITING_FOR_ACK&&(y("no ACK received, terminating the session"),clearTimeout(e._timers.invite2xxTimer),e.sendRequest(a.BYE),e._ended("remote",null,a.causes.NO_ACK))},d.TIMER_H)}},{key:"_createRTCConnection",value:function(e,t){var n=this;this._connection=new RTCPeerConnection(e,t),this._connection.addEventListener("iceconnectionstatechange",function(){"failed"===n._connection.iceConnectionState&&n.terminate({cause:a.causes.RTP_TIMEOUT,status_code:408,reason_phrase:a.causes.RTP_TIMEOUT})}),y('emit "peerconnection"'),this.emit("peerconnection",{peerconnection:this._connection})}},{key:"_createLocalDescription",value:function(e,t,n,r){function i(r){var i=this,s=void 0;o.addEventListener("icecandidate",s=function(n){if(!n.candidate){if(o.removeEventListener("icecandidate",s),i._rtcReady=!0,t){var r={originator:"local",type:e,sdp:o.localDescription.sdp};y('emit "sdp"'),i.emit("sdp",r),t(r.sdp)}t=null}}),o.setLocalDescription(r).then(function(){if("complete"===o.iceGatheringState&&(i._rtcReady=!0,t)){var n={originator:"local",type:e,sdp:o.localDescription.sdp};y('emit "sdp"'),i.emit("sdp",n),t(n.sdp),t=null}}).catch(function(e){i._rtcReady=!0,n&&n(e),T('emit "peerconnection:setlocaldescriptionfailed" [error:%o]',e),i.emit("peerconnection:setlocaldescriptionfailed",e)})}var s=this;y("createLocalDescription()");var o=this._connection;if(this._rtcReady=!1,"offer"===e)this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return o.createOffer(r)}).then(i.bind(this)).catch(function(e){s._rtcReady=!0,n&&n(e),T('emit "peerconnection:createofferfailed" [error:%o]',e),s.emit("peerconnection:createofferfailed",e)});else{if("answer"!==e)throw new Error('createLocalDescription() | type must be "offer" or "answer", but "'+e+'" was given');this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return o.createAnswer(r)}).then(i.bind(this)).catch(function(e){s._rtcReady=!0,n&&n(e),T('emit "peerconnection:createanswerfailed" [error:%o]',e),s.emit("peerconnection:createanswerfailed",e)})}}},{key:"_createDialog",value:function(e,t,n){var r="UAS"===t?e.to_tag:e.from_tag,i="UAS"===t?e.from_tag:e.to_tag,s=e.call_id+r+i,o=this._earlyDialogs[s];if(n)return!!o||((o=new f(this,e,t,f.C.STATUS_EARLY)).error?(y(o.error),this._failed("remote",e,a.causes.INTERNAL_ERROR),!1):(this._earlyDialogs[s]=o,!0));if(this._from_tag=e.from_tag,this._to_tag=e.to_tag,o)return o.update(e,t),this._dialog=o,delete this._earlyDialogs[s],!0;var l=new f(this,e,t);return l.error?(y(l.error),this._failed("remote",e,a.causes.INTERNAL_ERROR),!1):(this._dialog=l,!0)}},{key:"_receiveReinvite",value:function(e){function t(){var t=this;(function(e,t){this._late_sdp?this._createLocalDescription("offer",e,t,this._rtcOfferConstraints):(!0===this._remoteHold&&!1===s?(this._remoteHold=!1,this._onunhold("remote")):!1===this._remoteHold&&!0===s&&(this._remoteHold=!0,this._onhold("remote")),this._createLocalDescription("answer",e,t,this._rtcAnswerConstraints))}).call(this,function(n){var r=["Contact: "+t._contact];t._handleSessionTimersInIncomingRequest(e,r),t._late_sdp&&(n=t._mangleOffer(n)),e.reply(200,null,r,n,function(){t._status=C.STATUS_WAITING_FOR_ACK,t._setInvite2xxTimer(e,n),t._setACKTimer()}),"function"==typeof i.callback&&i.callback()},function(){e.reply(500)})}var n=this;y("receiveReinvite()");var r=e.getHeader("Content-Type"),i={request:e,callback:void 0,reject:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};o=!0;var n=t.status_code||403,r=t.reason_phrase||"",i=c.cloneArray(t.extraHeaders);if(this._status!==C.STATUS_CONFIRMED)return!1;if(n<300||n>=700)throw new TypeError("Invalid status_code: "+n);e.reply(n,r,i)}.bind(this)},s=!1,o=!1;if(this.emit("reinvite",i),!o)if(e.body){if(this._late_sdp=!1,"application/sdp"!==r)return y("invalid Content-Type"),void e.reply(415);var a=e.parseSDP(),l=!0,u=!1,d=void 0;try{for(var h,f=a.media[Symbol.iterator]();!(l=(h=f.next()).done);l=!0){var p=h.value;if(-1!==S.indexOf(p.type)){var _=p.direction||a.direction||"sendrecv";if("sendonly"!==_&&"inactive"!==_){s=!1;break}s=!0}}}catch(e){u=!0,d=e}finally{try{!l&&f.return&&f.return()}finally{if(u)throw d}}var m={originator:"remote",type:"offer",sdp:e.body};y('emit "sdp"'),this.emit("sdp",m);var v=new RTCSessionDescription({type:"offer",sdp:m.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return n._connection.setRemoteDescription(v)}).then(t.bind(this)).catch(function(t){e.reply(488),T('emit "peerconnection:setremotedescriptionfailed" [error:%o]',t),n.emit("peerconnection:setremotedescriptionfailed",t)})}else this._late_sdp=!0,t.call(this)}},{key:"_receiveUpdate",value:function(e){var t=this;y("receiveUpdate()");var n=e.getHeader("Content-Type"),r={request:e,callback:void 0,reject:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};i=!0;var n=t.status_code||403,r=t.reason_phrase||"",s=c.cloneArray(t.extraHeaders);if(this._status!==C.STATUS_CONFIRMED)return!1;if(n<300||n>=700)throw new TypeError("Invalid status_code: "+n);e.reply(n,r,s)}.bind(this)},i=!1,s=!1;if(this.emit("update",r),!i){if(!e.body){var o=[];return this._handleSessionTimersInIncomingRequest(e,o),void e.reply(200,null,o)}if("application/sdp"!==n)return y("invalid Content-Type"),void e.reply(415);var a=e.parseSDP(),l=!0,u=!1,d=void 0;try{for(var h,f=a.media[Symbol.iterator]();!(l=(h=f.next()).done);l=!0){var p=h.value;if(-1!==S.indexOf(p.type)){var _=p.direction||a.direction||"sendrecv";if("sendonly"!==_&&"inactive"!==_){s=!1;break}s=!0}}}catch(e){u=!0,d=e}finally{try{!l&&f.return&&f.return()}finally{if(u)throw d}}var m={originator:"remote",type:"offer",sdp:e.body};y('emit "sdp"'),this.emit("sdp",m);var v=new RTCSessionDescription({type:"offer",sdp:m.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._connection.setRemoteDescription(v)}).then(function(){!0===t._remoteHold&&!1===s?(t._remoteHold=!1,t._onunhold("remote")):!1===t._remoteHold&&!0===s&&(t._remoteHold=!0,t._onhold("remote")),t._createLocalDescription("answer",function(n){var i=["Contact: "+t._contact];t._handleSessionTimersInIncomingRequest(e,i),e.reply(200,null,i,n),"function"==typeof r.callback&&r.callback()},function(){e.reply(500)})}).catch(function(n){e.reply(488),T('emit "peerconnection:setremotedescriptionfailed" [error:%o]',n),t.emit("peerconnection:setremotedescriptionfailed",n)})}}},{key:"_receiveRefer",value:function(e){var n=this;if(y("receiveRefer()"),void 0===r(e.refer_to))return y("no Refer-To header field present in REFER"),void e.reply(400);if(e.refer_to.uri.scheme!==a.SIP)return y("Refer-To header field points to a non-SIP URI scheme"),void e.reply(416);e.reply(202);var i=new v(this,e.cseq);y('emit "refer"'),this.emit("refer",{request:e,accept:function(r,s){(function(n){var r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(n="function"==typeof n?n:null,this._status!==C.STATUS_WAITING_FOR_ACK&&this._status!==C.STATUS_CONFIRMED)return!1;var s=new t(this._ua);if(s.on("progress",function(e){var t=e.response;i.notify(t.status_code,t.reason_phrase)}),s.on("accepted",function(e){var t=e.response;i.notify(t.status_code,t.reason_phrase)}),s.on("failed",function(e){var t=e.message,n=e.cause;t?i.notify(t.status_code,t.reason_phrase):i.notify(487,n)}),e.refer_to.uri.hasHeader("replaces")){var o=decodeURIComponent(e.refer_to.uri.getHeader("replaces"));r.extraHeaders=c.cloneArray(r.extraHeaders),r.extraHeaders.push("Replaces: "+o)}s.connect(e.refer_to.uri.toAor(),r,n)}).call(n,r,s)},reject:function(){(function(){i.notify(603)}).call(n)}})}},{key:"_receiveNotify",value:function(e){switch(y("receiveNotify()"),void 0===r(e.event)&&e.reply(400),e.event.event){case"refer":var t=void 0,n=void 0;if(e.event.params&&e.event.params.id)t=e.event.params.id,n=this._referSubscribers[t];else{if(1!==Object.keys(this._referSubscribers).length)return void e.reply(400,"Missing event id parameter");n=this._referSubscribers[Object.keys(this._referSubscribers)[0]]}if(!n)return void e.reply(481,"Subscription does not exist");n.receiveNotify(e),e.reply(200);break;default:e.reply(489)}}},{key:"_receiveReplaces",value:function(e){var n=this;y("receiveReplaces()"),this.emit("replaces",{request:e,accept:function(r){(function(n){var r=this;if(this._status!==C.STATUS_WAITING_FOR_ACK&&this._status!==C.STATUS_CONFIRMED)return!1;var i=new t(this._ua);i.on("confirmed",function(){r.terminate()}),i.init_incoming(e,n)}).call(n,r)},reject:function(){(function(){y("Replaced INVITE rejected by the user"),e.reply(486)}).call(n)}})}},{key:"_sendInitialRequest",value:function(e,t,n){function r(e){this._status!==C.STATUS_TERMINATED&&(this._localMediaStream=e,e&&this._connection.addStream(e),this._connecting(this._request),this._createLocalDescription("offer",function(e){if(this._is_canceled||this._status===C.STATUS_TERMINATED)return;this._request.body=e,this._status=C.STATUS_INVITE_SENT,y('emit "sending" [request:%o]',this._request),this.emit("sending",{request:this._request}),s.send()}.bind(this),function(){if(this._status===C.STATUS_TERMINATED)return;this._failed("system",null,a.causes.WEBRTC_ERROR)}.bind(this),t))}var i=this,s=new p(this._ua,this._request,{onRequestTimeout:function(){i.onRequestTimeout()},onTransportError:function(){i.onTransportError()},onAuthenticated:function(e){i._request=e},onReceiveResponse:function(e){i._receiveInviteResponse(e)}});n?setTimeout(function(){r.call(i,n)}):e.audio||e.video?(this._localMediaStreamLocallyGenerated=!0,navigator.mediaDevices.getUserMedia(e).then(r.bind(this)).catch(function(e){(function(){this._status!==C.STATUS_TERMINATED&&this._failed("local",null,a.causes.USER_DENIED_MEDIA_ACCESS)}).call(i,e),T('emit "getusermediafailed" [error:%o]',e),i.emit("getusermediafailed",e)})):r.call(this,null)}},{key:"_receiveInviteResponse",value:function(e){var t=this;if(y("receiveInviteResponse()"),this._dialog&&e.status_code>=200&&e.status_code<=299){if(this._dialog.id.call_id===e.call_id&&this._dialog.id.local_tag===e.from_tag&&this._dialog.id.remote_tag===e.to_tag)return void this.sendRequest(a.ACK);var n=new f(this,e,"UAC");return void 0!==n.error?void y(n.error):(this.sendRequest(a.ACK),void this.sendRequest(a.BYE))}if(this._is_canceled)e.status_code>=100&&e.status_code<200?this._request.cancel(this._cancel_reason):e.status_code>=200&&e.status_code<299&&this._acceptAndTerminate(e);else if(this._status===C.STATUS_INVITE_SENT||this._status===C.STATUS_1XX_RECEIVED)switch(!0){case/^100$/.test(e.status_code):this._status=C.STATUS_1XX_RECEIVED;break;case/^1[0-9]{2}$/.test(e.status_code):if(!e.to_tag){y("1xx response received without to tag");break}if(e.hasHeader("contact")&&!this._createDialog(e,"UAC",!0))break;if(this._status=C.STATUS_1XX_RECEIVED,this._progress("remote",e),!e.body)break;var r={originator:"remote",type:"answer",sdp:e.body};y('emit "sdp"'),this.emit("sdp",r);var i=new RTCSessionDescription({type:"answer",sdp:r.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return t._connection.setRemoteDescription(i)}).catch(function(e){T('emit "peerconnection:setremotedescriptionfailed" [error:%o]',e),t.emit("peerconnection:setremotedescriptionfailed",e)});break;case/^2[0-9]{2}$/.test(e.status_code):if(this._status=C.STATUS_CONFIRMED,!e.body){this._acceptAndTerminate(e,400,a.causes.MISSING_SDP),this._failed("remote",e,a.causes.BAD_MEDIA_DESCRIPTION);break}if(!this._createDialog(e,"UAC"))break;var s={originator:"remote",type:"answer",sdp:e.body};y('emit "sdp"'),this.emit("sdp",s);var o=new RTCSessionDescription({type:"answer",sdp:s.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){if("stable"===t._connection.signalingState)return t._connection.createOffer().then(function(e){return t._connection.setLocalDescription(e)}).catch(function(n){t._acceptAndTerminate(e,500,n.toString()),t._failed("local",e,a.causes.WEBRTC_ERROR),T('emit "peerconnection:setlocaldescriptionfailed" [error:%o]',n),t.emit("peerconnection:setlocaldescriptionfailed",n)})}).then(function(){t._connection.setRemoteDescription(o).then(function(){t._handleSessionTimersInIncomingResponse(e),t._accepted("remote",e),t.sendRequest(a.ACK),t._confirmed("local",null)}).catch(function(n){t._acceptAndTerminate(e,488,"Not Acceptable Here"),t._failed("remote",e,a.causes.BAD_MEDIA_DESCRIPTION),T('emit "peerconnection:setremotedescriptionfailed" [error:%o]',n),t.emit("peerconnection:setremotedescriptionfailed",n)})});break;default:var l=c.sipErrorCause(e.status_code);this._failed("remote",e,l)}}},{key:"_sendReinvite",value:function(){function e(e){i.failed&&i.failed(e)}var t=this,n=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};y("sendReinvite()");var r=c.cloneArray(n.extraHeaders),i=n.eventHandlers||{},s=n.rtcOfferConstraints||this._rtcOfferConstraints||null,o=!1;r.push("Contact: "+this._contact),r.push("Content-Type: application/sdp"),this._sessionTimers.running&&r.push("Session-Expires: "+this._sessionTimers.currentExpires+";refresher="+(this._sessionTimers.refresher?"uac":"uas")),this._createLocalDescription("offer",function(n){n=t._mangleOffer(n),t.sendRequest(a.INVITE,{extraHeaders:r,body:n,eventHandlers:{onSuccessResponse:function(n){(function(t){var n=this;if(this._status!==C.STATUS_TERMINATED&&(this.sendRequest(a.ACK),!o))if(this._handleSessionTimersInIncomingResponse(t),t.body)if("application/sdp"===t.getHeader("Content-Type")){var r={originator:"remote",type:"answer",sdp:t.body};y('emit "sdp"'),this.emit("sdp",r);var s=new RTCSessionDescription({type:"answer",sdp:r.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return n._connection.setRemoteDescription(s)}).then(function(){i.succeeded&&i.succeeded(t)}).catch(function(t){e.call(n),T('emit "peerconnection:setremotedescriptionfailed" [error:%o]',t),n.emit("peerconnection:setremotedescriptionfailed",t)})}else e.call(this);else e.call(this)}).call(t,n),o=!0},onErrorResponse:function(n){e.call(t,n)},onTransportError:function(){t.onTransportError()},onRequestTimeout:function(){t.onRequestTimeout()},onDialogError:function(){t.onDialogError()}}})},function(){e()},s)}},{key:"_sendUpdate",value:function(){function e(e){var n=this;if(this._status!==C.STATUS_TERMINATED&&!u)if(this._handleSessionTimersInIncomingResponse(e),l){if(!e.body)return void t.call(this);if("application/sdp"!==e.getHeader("Content-Type"))return void t.call(this);var r={originator:"remote",type:"answer",sdp:e.body};y('emit "sdp"'),this.emit("sdp",r);var i=new RTCSessionDescription({type:"answer",sdp:r.sdp});this._connectionPromiseQueue=this._connectionPromiseQueue.then(function(){return n._connection.setRemoteDescription(i)}).then(function(){s.succeeded&&s.succeeded(e)}).catch(function(e){t.call(n),T('emit "peerconnection:setremotedescriptionfailed" [error:%o]',e),n.emit("peerconnection:setremotedescriptionfailed",e)})}else s.succeeded&&s.succeeded(e)}function t(e){s.failed&&s.failed(e)}var n=this,r=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};y("sendUpdate()");var i=c.cloneArray(r.extraHeaders),s=r.eventHandlers||{},o=r.rtcOfferConstraints||this._rtcOfferConstraints||null,l=r.sdpOffer||!1,u=!1;i.push("Contact: "+this._contact),this._sessionTimers.running&&i.push("Session-Expires: "+this._sessionTimers.currentExpires+";refresher="+(this._sessionTimers.refresher?"uac":"uas")),l?(i.push("Content-Type: application/sdp"),this._createLocalDescription("offer",function(r){r=n._mangleOffer(r),n.sendRequest(a.UPDATE,{extraHeaders:i,body:r,eventHandlers:{onSuccessResponse:function(t){e.call(n,t),u=!0},onErrorResponse:function(e){t.call(n,e)},onTransportError:function(){n.onTransportError()},onRequestTimeout:function(){n.onRequestTimeout()},onDialogError:function(){n.onDialogError()}}})},function(){t.call(n)},o)):this.sendRequest(a.UPDATE,{extraHeaders:i,eventHandlers:{onSuccessResponse:function(t){e.call(n,t)},onErrorResponse:function(e){t.call(n,e)},onTransportError:function(){n.onTransportError()},onRequestTimeout:function(){n.onRequestTimeout()},onDialogError:function(){n.onDialogError()}}})}},{key:"_acceptAndTerminate",value:function(e,t,n){y("acceptAndTerminate()");var r=[];t&&(n=n||a.REASON_PHRASE[t]||"",r.push("Reason: SIP ;cause="+t+'; text="'+n+'"')),(this._dialog||this._createDialog(e,"UAC"))&&(this.sendRequest(a.ACK),this.sendRequest(a.BYE,{extraHeaders:r})),this._status=C.STATUS_TERMINATED}},{key:"_mangleOffer",value:function(e){if(!this._localHold&&!this._remoteHold)return e;if(e=o.parse(e),this._localHold&&!this._remoteHold){y("mangleOffer() | me on hold, mangling offer");var t=!0,n=!1,r=void 0;try{for(var i,s=e.media[Symbol.iterator]();!(t=(i=s.next()).done);t=!0){var a=i.value;-1!==S.indexOf(a.type)&&(a.direction?"sendrecv"===a.direction?a.direction="sendonly":"recvonly"===a.direction&&(a.direction="inactive"):a.direction="sendonly")}}catch(e){n=!0,r=e}finally{try{!t&&s.return&&s.return()}finally{if(n)throw r}}}else if(this._localHold&&this._remoteHold){y("mangleOffer() | both on hold, mangling offer");var l=!0,u=!1,c=void 0;try{for(var d,h=e.media[Symbol.iterator]();!(l=(d=h.next()).done);l=!0){var f=d.value;-1!==S.indexOf(f.type)&&(f.direction="inactive")}}catch(e){u=!0,c=e}finally{try{!l&&h.return&&h.return()}finally{if(u)throw c}}}else if(this._remoteHold){y("mangleOffer() | remote on hold, mangling offer");var p=!0,_=!1,m=void 0;try{for(var v,g=e.media[Symbol.iterator]();!(p=(v=g.next()).done);p=!0){var T=v.value;-1!==S.indexOf(T.type)&&(T.direction?"sendrecv"===T.direction?T.direction="recvonly":"recvonly"===T.direction&&(T.direction="inactive"):T.direction="recvonly")}}catch(e){_=!0,m=e}finally{try{!p&&g.return&&g.return()}finally{if(_)throw m}}}return o.write(e)}},{key:"_setLocalMediaStatus",value:function(){var e=!0,t=!0;(this._localHold||this._remoteHold)&&(e=!1,t=!1),this._audioMuted&&(e=!1),this._videoMuted&&(t=!1),this._toogleMuteAudio(!e),this._toogleMuteVideo(!t)}},{key:"_handleSessionTimersInIncomingRequest",value:function(e,t){if(this._sessionTimers.enabled){var n=void 0;e.session_expires&&e.session_expires>=a.MIN_SESSION_EXPIRES?(this._sessionTimers.currentExpires=e.session_expires,n=e.session_expires_refresher||"uas"):(this._sessionTimers.currentExpires=this._sessionTimers.defaultExpires,n="uas"),t.push("Session-Expires: "+this._sessionTimers.currentExpires+";refresher="+n),this._sessionTimers.refresher="uas"===n,this._runSessionTimer()}}},{key:"_handleSessionTimersInIncomingResponse",value:function(e){if(this._sessionTimers.enabled){var t=void 0;e.session_expires&&e.session_expires>=a.MIN_SESSION_EXPIRES?(this._sessionTimers.currentExpires=e.session_expires,t=e.session_expires_refresher||"uac"):(this._sessionTimers.currentExpires=this._sessionTimers.defaultExpires,t="uac"),this._sessionTimers.refresher="uac"===t,this._runSessionTimer()}}},{key:"_runSessionTimer",value:function(){var e=this,t=this._sessionTimers.currentExpires;this._sessionTimers.running=!0,clearTimeout(this._sessionTimers.timer),this._sessionTimers.refresher?this._sessionTimers.timer=setTimeout(function(){e._status!==C.STATUS_TERMINATED&&(y("runSessionTimer() | sending session refresh request"),e._sessionTimers.refreshMethod===a.UPDATE?e._sendUpdate():e._sendReinvite())},500*t):this._sessionTimers.timer=setTimeout(function(){e._status!==C.STATUS_TERMINATED&&(T("runSessionTimer() | timer expired, terminating the session"),e.terminate({cause:a.causes.REQUEST_TIMEOUT,status_code:408,reason_phrase:"Session Timer Expired"}))},1100*t)}},{key:"_toogleMuteAudio",value:function(e){var t=this._connection.getLocalStreams(),n=!0,r=!1,i=void 0;try{for(var s,o=t[Symbol.iterator]();!(n=(s=o.next()).done);n=!0){var a=s.value.getAudioTracks(),l=!0,u=!1,c=void 0;try{for(var d,h=a[Symbol.iterator]();!(l=(d=h.next()).done);l=!0){d.value.enabled=!e}}catch(e){u=!0,c=e}finally{try{!l&&h.return&&h.return()}finally{if(u)throw c}}}}catch(e){r=!0,i=e}finally{try{!n&&o.return&&o.return()}finally{if(r)throw i}}}},{key:"_toogleMuteVideo",value:function(e){var t=this._connection.getLocalStreams(),n=!0,r=!1,i=void 0;try{for(var s,o=t[Symbol.iterator]();!(n=(s=o.next()).done);n=!0){var a=s.value.getVideoTracks(),l=!0,u=!1,c=void 0;try{for(var d,h=a[Symbol.iterator]();!(l=(d=h.next()).done);l=!0){d.value.enabled=!e}}catch(e){u=!0,c=e}finally{try{!l&&h.return&&h.return()}finally{if(u)throw c}}}}catch(e){r=!0,i=e}finally{try{!n&&o.return&&o.return()}finally{if(r)throw i}}}},{key:"_newRTCSession",value:function(e,t){y("newRTCSession()"),this._ua.newRTCSession(this,{originator:e,session:this,request:t})}},{key:"_connecting",value:function(e){y("session connecting"),y('emit "connecting"'),this.emit("connecting",{request:e})}},{key:"_progress",value:function(e,t){y("session progress"),y('emit "progress"'),this.emit("progress",{originator:e,response:t||null})}},{key:"_accepted",value:function(e,t){y("session accepted"),this._start_time=new Date,y('emit "accepted"'),this.emit("accepted",{originator:e,response:t||null})}},{key:"_confirmed",value:function(e,t){y("session confirmed"),this._is_confirmed=!0,y('emit "confirmed"'),this.emit("confirmed",{originator:e,ack:t||null})}},{key:"_ended",value:function(e,t,n){y("session ended"),this._end_time=new Date,this._close(),y('emit "ended"'),this.emit("ended",{originator:e,message:t||null,cause:n})}},{key:"_failed",value:function(e,t,n){y("session failed"),this._close(),y('emit "failed"'),this.emit("failed",{originator:e,message:t||null,cause:n})}},{key:"_onhold",value:function(e){y("session onhold"),this._setLocalMediaStatus(),y('emit "hold"'),this.emit("hold",{originator:e})}},{key:"_onunhold",value:function(e){y("session onunhold"),this._setLocalMediaStatus(),y('emit "unhold"'),this.emit("unhold",{originator:e})}},{key:"_onmute",value:function(e){var t=e.audio,n=e.video;y("session onmute"),this._setLocalMediaStatus(),y('emit "muted"'),this.emit("muted",{audio:t,video:n})}},{key:"_onunmute",value:function(e){var t=e.audio,n=e.video;y("session onunmute"),this._setLocalMediaStatus(),y('emit "unmuted"'),this.emit("unmuted",{audio:t,video:n})}},{key:"C",get:function(){return C}},{key:"causes",get:function(){return a.causes}},{key:"id",get:function(){return this._id}},{key:"connection",get:function(){return this._connection}},{key:"direction",get:function(){return this._direction}},{key:"local_identity",get:function(){return this._local_identity}},{key:"remote_identity",get:function(){return this._remote_identity}},{key:"start_time",get:function(){return this._start_time}},{key:"end_time",get:function(){return this._end_time}},{key:"data",get:function(){return this._data},set:function(e){this._data=e}},{key:"status",get:function(){return this._status}}]),t}()},{"./Constants":2,"./Dialog":3,"./Exceptions":6,"./RTCSession/DTMF":13,"./RTCSession/Info":14,"./RTCSession/ReferNotifier":15,"./RTCSession/ReferSubscriber":16,"./RequestSender":18,"./SIPMessage":19,"./Timers":21,"./Transactions":22,"./Utils":26,debug:29,events:31,"sdp-transform":36}],13:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("events").EventEmitter,s=e("../Constants"),o=e("../Exceptions"),a=e("../Utils"),l=e("debug")("JsSIP:RTCSession:DTMF");e("debug")("JsSIP:ERROR:RTCSession:DTMF").log=console.warn.bind(console);var u={MIN_DURATION:70,MAX_DURATION:6e3,DEFAULT_DURATION:100,MIN_INTER_TONE_GAP:50,DEFAULT_INTER_TONE_GAP:500};t.exports=function(e){function t(e){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t);var n=function(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return n._session=e,n._direction=null,n._tone=null,n._duration=null,n._request=null,n}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(t,i),r(t,[{key:"send",value:function(e){var t=this,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};if(void 0===e)throw new TypeError("Not enough arguments");if(this._direction="outgoing",this._session.status!==this._session.C.STATUS_CONFIRMED&&this._session.status!==this._session.C.STATUS_WAITING_FOR_ACK)throw new o.InvalidStateError(this._session.status);var r=a.cloneArray(n.extraHeaders);if(this.eventHandlers=n.eventHandlers||{},"string"==typeof e)e=e.toUpperCase();else{if("number"!=typeof e)throw new TypeError("Invalid tone: "+e);e=e.toString()}if(!e.match(/^[0-9A-DR#*]$/))throw new TypeError("Invalid tone: "+e);this._tone=e,this._duration=n.duration,r.push("Content-Type: application/dtmf-relay");var i="Signal="+this._tone+"\r\n";i+="Duration="+this._duration,this._session.newDTMF({originator:"local",dtmf:this,request:this._request}),this._session.sendRequest(s.INFO,{extraHeaders:r,eventHandlers:{onSuccessResponse:function(e){t.emit("succeeded",{originator:"remote",response:e})},onErrorResponse:function(e){t.eventHandlers.onFailed&&t.eventHandlers.onFailed(),t.emit("failed",{originator:"remote",response:e})},onRequestTimeout:function(){t._session.onRequestTimeout()},onTransportError:function(){t._session.onTransportError()},onDialogError:function(){t._session.onDialogError()}},body:i})}},{key:"init_incoming",value:function(e){var t=/^(Signal\s*?=\s*?)([0-9A-D#*]{1})(\s)?.*/,n=/^(Duration\s?=\s?)([0-9]{1,4})(\s)?.*/;if(this._direction="incoming",this._request=e,e.reply(200),e.body){var r=e.body.split("\n");r.length>=1&&t.test(r[0])&&(this._tone=r[0].replace(t,"$2")),r.length>=2&&n.test(r[1])&&(this._duration=parseInt(r[1].replace(n,"$2"),10))}this._duration||(this._duration=u.DEFAULT_DURATION),this._tone?this._session.newDTMF({originator:"remote",dtmf:this,request:e}):l("invalid INFO DTMF received, discarded")}},{key:"tone",get:function(){return this._tone}},{key:"duration",get:function(){return this._duration}}]),t}(),t.exports.C=u},{"../Constants":2,"../Exceptions":6,"../Utils":26,debug:29,events:31}],14:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("events").EventEmitter;e("debug")("JsSIP:ERROR:RTCSession:Info").log=console.warn.bind(console);var s=e("../Constants"),o=e("../Exceptions"),a=e("../Utils");t.exports=function(e){function t(e){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t);var n=function(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return n._session=e,n._direction=null,n._contentType=null,n._body=null,n}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(t,i),r(t,[{key:"send",value:function(e,t){var n=this,r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{};if(this._direction="outgoing",void 0===e)throw new TypeError("Not enough arguments");if(this._session.status!==this._session.C.STATUS_CONFIRMED&&this._session.status!==this._session.C.STATUS_WAITING_FOR_ACK)throw new o.InvalidStateError(this._session.status);this._contentType=e,this._body=t;var i=a.cloneArray(r.extraHeaders);i.push("Content-Type: "+e),this._session.newInfo({originator:"local",info:this,request:this.request}),this._session.sendRequest(this,s.INFO,{extraHeaders:i,eventHandlers:{onSuccessResponse:function(e){n.emit("succeeded",{originator:"remote",response:e})},onErrorResponse:function(e){n.emit("failed",{originator:"remote",response:e})},onTransportError:function(){n._session.onTransportError()},onRequestTimeout:function(){n._session.onRequestTimeout()},onDialogError:function(){n._session.onDialogError()}},body:t})}},{key:"init_incoming",value:function(e){this._direction="incoming",this.request=e,e.reply(200),this._contentType=e.getHeader("content-type"),this._body=e.body,this._session.newInfo({originator:"remote",info:this,request:e})}},{key:"contentType",get:function(){return this._contentType}},{key:"body",get:function(){return this._body}}]),t}()},{"../Constants":2,"../Exceptions":6,"../Utils":26,debug:29,events:31}],15:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("../Constants"),s=e("debug")("JsSIP:RTCSession:ReferNotifier"),o={event_type:"refer",body_type:"message/sipfrag;version=2.0",expires:300};t.exports=function(){function e(t,n,r){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._session=t,this._id=n,this._expires=r||o.expires,this._active=!0,this.notify(100)}return r(e,[{key:"notify",value:function(e,t){if(s("notify()"),!1!==this._active){t=t||i.REASON_PHRASE[e]||"";var n=void 0;n=e>=200?"terminated;reason=noresource":"active;expires="+this._expires,this._session.sendRequest(i.NOTIFY,{extraHeaders:["Event: "+o.event_type+";id="+this._id,"Subscription-State: "+n,"Content-Type: "+o.body_type],body:"SIP/2.0 "+e+" "+t,eventHandlers:{onErrorResponse:function(){this._active=!1}}})}}}]),e}()},{"../Constants":2,debug:29}],16:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("events").EventEmitter,s=e("../Constants"),o=e("../Grammar"),a=e("../Utils"),l=e("debug")("JsSIP:RTCSession:ReferSubscriber");t.exports=function(e){function t(e){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t);var n=function(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return n._id=null,n._session=e,n}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(t,i),r(t,[{key:"sendRefer",value:function(e){var t=this,n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};l("sendRefer()");var r=a.cloneArray(n.extraHeaders),i=n.eventHandlers||{};for(var o in i)Object.prototype.hasOwnProperty.call(i,o)&&this.on(o,i[o]);var u=null;n.replaces&&(u=n.replaces._request.call_id,u+=";to-tag="+n.replaces._to_tag,u+=";from-tag="+n.replaces._from_tag,u=encodeURIComponent(u));var c="Refer-To: <"+e+(u?"?Replaces="+u:"")+">";r.push(c);var d=this._session.sendRequest(s.REFER,{extraHeaders:r,eventHandlers:{onSuccessResponse:function(e){t._requestSucceeded(e)},onErrorResponse:function(e){t._requestFailed(e,s.causes.REJECTED)},onTransportError:function(){t._requestFailed(null,s.causes.CONNECTION_ERROR)},onRequestTimeout:function(){t._requestFailed(null,s.causes.REQUEST_TIMEOUT)},onDialogError:function(){t._requestFailed(null,s.causes.DIALOG_ERROR)}}});this._id=d.cseq}},{key:"receiveNotify",value:function(e){if(l("receiveNotify()"),e.body){var t=o.parse(e.body,"Status_Line");if(-1!==t)switch(!0){case/^100$/.test(t.status_code):this.emit("trying",{request:e,status_line:t});break;case/^1[0-9]{2}$/.test(t.status_code):this.emit("progress",{request:e,status_line:t});break;case/^2[0-9]{2}$/.test(t.status_code):this.emit("accepted",{request:e,status_line:t});break;default:this.emit("failed",{request:e,status_line:t})}else l('receiveNotify() | error parsing NOTIFY body: "'+e.body+'"')}}},{key:"_requestSucceeded",value:function(e){l("REFER succeeded"),l('emit "requestSucceeded"'),this.emit("requestSucceeded",{response:e})}},{key:"_requestFailed",value:function(e,t){l("REFER failed"),l('emit "requestFailed"'),this.emit("requestFailed",{response:e||null,cause:t})}},{key:"id",get:function(){return this._id}}]),t}()},{"../Constants":2,"../Grammar":7,"../Utils":26,debug:29,events:31}],17:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("./Utils"),s=e("./Constants"),o=e("./SIPMessage"),a=e("./RequestSender"),l=e("debug")("JsSIP:Registrator");t.exports=function(){function e(t,n){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e);this._ua=t,this._transport=n,this._registrar=t.configuration.registrar_server,this._expires=t.configuration.register_expires,this._call_id=i.createRandomToken(22),this._cseq=0,this._to_uri=t.configuration.uri,this._registrationTimer=null,this._registering=!1,this._registered=!1,this._contact=this._ua.contact.toString(),this._contact+=";+sip.ice",this._extraHeaders=[],this._extraContactParams="",this._contact+=";reg-id=1",this._contact+=';+sip.instance="<urn:uuid:'+this._ua.configuration.instance_id+'>"'}return r(e,[{key:"setExtraHeaders",value:function(e){Array.isArray(e)||(e=[]),this._extraHeaders=e.slice()}},{key:"setExtraContactParams",value:function(e){e instanceof Object||(e={}),this._extraContactParams="";for(var t in e)if(Object.prototype.hasOwnProperty.call(e,t)){var n=e[t];this._extraContactParams+=";"+t,n&&(this._extraContactParams+="="+n)}}},{key:"register",value:function(){var e=this;if(this._registering)l("Register request in progress...");else{var t=this._extraHeaders.slice();t.push("Contact: "+this._contact+";expires="+this._expires+this._extraContactParams),t.push("Expires: "+this._expires);var n=new o.OutgoingRequest(s.REGISTER,this._registrar,this._ua,{to_uri:this._to_uri,call_id:this._call_id,cseq:this._cseq+=1},t),r=new a(this._ua,n,{onRequestTimeout:function(){e._registrationFailure(null,s.causes.REQUEST_TIMEOUT)},onTransportError:function(){e._registrationFailure(null,s.causes.CONNECTION_ERROR)},onAuthenticated:function(){e._cseq+=1},onReceiveResponse:function(t){var n=void 0,r=void 0,o=t.getHeaders("contact").length;if(t.cseq===e._cseq)switch(null!==e._registrationTimer&&(clearTimeout(e._registrationTimer),e._registrationTimer=null),!0){case/^1[0-9]{2}$/.test(t.status_code):break;case/^2[0-9]{2}$/.test(t.status_code):if(e._registering=!1,!o){l("no Contact header in response to REGISTER, response ignored");break}for(;o--;){if((n=t.parseHeader("contact",o)).uri.user===e._ua.contact.uri.user){r=n.getParam("expires");break}n=null}if(!n){l("no Contact header pointing to us, response ignored");break}!r&&t.hasHeader("expires")&&(r=t.getHeader("expires")),r||(r=e._expires),(r=Number(r))<10&&(r=10),e._registrationTimer=setTimeout(function(){e._registrationTimer=null,0===e._ua.listeners("registrationExpiring").length?e.register():e._ua.emit("registrationExpiring")},1e3*r-5e3),n.hasParam("temp-gruu")&&(e._ua.contact.temp_gruu=n.getParam("temp-gruu").replace(/"/g,"")),n.hasParam("pub-gruu")&&(e._ua.contact.pub_gruu=n.getParam("pub-gruu").replace(/"/g,"")),e._registered||(e._registered=!0,e._ua.registered({response:t}));break;case/^423$/.test(t.status_code):t.hasHeader("min-expires")?(e._expires=Number(t.getHeader("min-expires")),e._expires<10&&(e._expires=10),e.register()):(l("423 response received for REGISTER without Min-Expires"),e._registrationFailure(t,s.causes.SIP_FAILURE_CODE));break;default:var a=i.sipErrorCause(t.status_code);e._registrationFailure(t,a)}}});this._registering=!0,r.send()}}},{key:"unregister",value:function(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};if(this._registered){this._registered=!1,null!==this._registrationTimer&&(clearTimeout(this._registrationTimer),this._registrationTimer=null);var n=this._extraHeaders.slice();t.all?n.push("Contact: *"+this._extraContactParams):n.push("Contact: "+this._contact+";expires=0"+this._extraContactParams),n.push("Expires: 0");var r=new o.OutgoingRequest(s.REGISTER,this._registrar,this._ua,{to_uri:this._to_uri,call_id:this._call_id,cseq:this._cseq+=1},n);new a(this._ua,r,{onRequestTimeout:function(){e._unregistered(null,s.causes.REQUEST_TIMEOUT)},onTransportError:function(){e._unregistered(null,s.causes.CONNECTION_ERROR)},onAuthenticated:function(){e._cseq+=1},onReceiveResponse:function(t){switch(!0){case/^1[0-9]{2}$/.test(t.status_code):break;case/^2[0-9]{2}$/.test(t.status_code):e._unregistered(t);break;default:var n=i.sipErrorCause(t.status_code);e._unregistered(t,n)}}}).send()}else l("already unregistered")}},{key:"close",value:function(){this._registered&&this.unregister()}},{key:"onTransportClosed",value:function(){this._registering=!1,null!==this._registrationTimer&&(clearTimeout(this._registrationTimer),this._registrationTimer=null),this._registered&&(this._registered=!1,this._ua.unregistered({}))}},{key:"_registrationFailure",value:function(e,t){this._registering=!1,this._ua.registrationFailed({response:e||null,cause:t}),this._registered&&(this._registered=!1,this._ua.unregistered({response:e||null,cause:t}))}},{key:"_unregistered",value:function(e,t){this._registering=!1,this._registered=!1,this._ua.unregistered({response:e||null,cause:t||null})}},{key:"registered",get:function(){return this._registered}}]),e}()},{"./Constants":2,"./RequestSender":18,"./SIPMessage":19,"./Utils":26,debug:29}],18:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("./Constants"),s=e("./DigestAuthentication"),o=e("./Transactions"),a=e("debug")("JsSIP:RequestSender"),l={onRequestTimeout:function(){},onTransportError:function(){},onReceiveResponse:function(){},onAuthenticated:function(){}};t.exports=function(){function e(t,n,r){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._ua=t,this._eventHandlers=r,this._method=n.method,this._request=n,this._auth=null,this._challenged=!1,this._staled=!1;for(var s in l)Object.prototype.hasOwnProperty.call(l,s)&&(this._eventHandlers[s]||(this._eventHandlers[s]=l[s]));t.status!==t.C.STATUS_USER_CLOSED||this._method===i.BYE&&this._method===i.ACK||this._eventHandlers.onTransportError()}return r(e,[{key:"send",value:function(){var e=this,t={onRequestTimeout:function(){e._eventHandlers.onRequestTimeout()},onTransportError:function(){e._eventHandlers.onTransportError()},onReceiveResponse:function(t){e._receiveResponse(t)}};switch(this._method){case"INVITE":this.clientTransaction=new o.InviteClientTransaction(this._ua,this._ua.transport,this._request,t);break;case"ACK":this.clientTransaction=new o.AckClientTransaction(this._ua,this._ua.transport,this._request,t);break;default:this.clientTransaction=new o.NonInviteClientTransaction(this._ua,this._ua.transport,this._request,t)}this.clientTransaction.send()}},{key:"_receiveResponse",value:function(e){var t=void 0,n=void 0,r=e.status_code;if(401!==r&&407!==r||null===this._ua.configuration.password&&null===this._ua.configuration.ha1)this._eventHandlers.onReceiveResponse(e);else{if(401===e.status_code?(t=e.parseHeader("www-authenticate"),n="authorization"):(t=e.parseHeader("proxy-authenticate"),n="proxy-authorization"),!t)return a(e.status_code+" with wrong or missing challenge, cannot authenticate"),void this._eventHandlers.onReceiveResponse(e);if(!this._challenged||!this._staled&&!0===t.stale){if(this._auth||(this._auth=new s({username:this._ua.configuration.authorization_user,password:this._ua.configuration.password,realm:this._ua.configuration.realm,ha1:this._ua.configuration.ha1})),!this._auth.authenticate(this._request,t))return void this._eventHandlers.onReceiveResponse(e);this._challenged=!0,this._ua.set("realm",this._auth.get("realm")),this._ua.set("ha1",this._auth.get("ha1")),t.stale&&(this._staled=!0),this._request=this._request.clone(),this._request.cseq+=1,this._request.setHeader("cseq",this._request.cseq+" "+this._method),this._request.setHeader(n,this._auth.toString()),this._eventHandlers.onAuthenticated(this._request),this.send()}else this._eventHandlers.onReceiveResponse(e)}}}]),e}()},{"./Constants":2,"./DigestAuthentication":5,"./Transactions":22,debug:29}],19:[function(e,t,n){"use strict";function r(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}function i(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}function s(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var o=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),a=e("sdp-transform"),l=e("./Constants"),u=e("./Utils"),c=e("./NameAddrHeader"),d=e("./Grammar"),h=e("debug")("JsSIP:SIPMessage"),f=function(){function e(t,n,r,i,o,a){if(s(this,e),!t||!n||!r)return null;i=i||{},this.ua=r,this.headers={},this.method=t,this.ruri=n,this.body=a,this.extraHeaders=u.cloneArray(o),i.route_set?this.setHeader("route",i.route_set):r.configuration.use_preloaded_route&&this.setHeader("route","<"+r.transport.sip_uri+";lr>"),this.setHeader("via",""),this.setHeader("max-forwards",l.MAX_FORWARDS);var d=i.to_display_name||0===i.to_display_name?'"'+i.to_display_name+'" ':"";d+="<"+(i.to_uri||n)+">",d+=i.to_tag?";tag="+i.to_tag:"",this.to=c.parse(d),this.setHeader("to",d);var h=void 0;h=i.from_display_name||0===i.from_display_name?'"'+i.from_display_name+'" ':r.configuration.display_name?'"'+r.configuration.display_name+'" ':"",h+="<"+(i.from_uri||r.configuration.uri)+">;tag=",h+=i.from_tag||u.newTag(),this.from=c.parse(h),this.setHeader("from",h);var f=i.call_id||r.configuration.jssip_id+u.createRandomToken(15);this.call_id=f,this.setHeader("call-id",f);var p=i.cseq||Math.floor(1e4*Math.random());this.cseq=p,this.setHeader("cseq",p+" "+t)}return o(e,[{key:"setHeader",value:function(e,t){for(var n=new RegExp("^\\s*"+e+"\\s*:","i"),r=0;r<this.extraHeaders.length;r++)n.test(this.extraHeaders[r])&&this.extraHeaders.splice(r,1);this.headers[u.headerize(e)]=Array.isArray(t)?t:[t]}},{key:"getHeader",value:function(e){var t=this.headers[u.headerize(e)];if(t){if(t[0])return t[0]}else{var n=new RegExp("^\\s*"+e+"\\s*:","i"),r=!0,i=!1,s=void 0;try{for(var o,a=this.extraHeaders[Symbol.iterator]();!(r=(o=a.next()).done);r=!0){var l=o.value;if(n.test(l))return l.substring(l.indexOf(":")+1).trim()}}catch(e){i=!0,s=e}finally{try{!r&&a.return&&a.return()}finally{if(i)throw s}}}}},{key:"getHeaders",value:function(e){var t=this.headers[u.headerize(e)],n=[];if(t){var r=!0,i=!1,s=void 0;try{for(var o,a=t[Symbol.iterator]();!(r=(o=a.next()).done);r=!0){var l=o.value;n.push(l)}}catch(e){i=!0,s=e}finally{try{!r&&a.return&&a.return()}finally{if(i)throw s}}return n}var c=new RegExp("^\\s*"+e+"\\s*:","i"),d=!0,h=!1,f=void 0;try{for(var p,_=this.extraHeaders[Symbol.iterator]();!(d=(p=_.next()).done);d=!0){var m=p.value;c.test(m)&&n.push(m.substring(m.indexOf(":")+1).trim())}}catch(e){h=!0,f=e}finally{try{!d&&_.return&&_.return()}finally{if(h)throw f}}return n}},{key:"hasHeader",value:function(e){if(this.headers[u.headerize(e)])return!0;var t=new RegExp("^\\s*"+e+"\\s*:","i"),n=!0,r=!1,i=void 0;try{for(var s,o=this.extraHeaders[Symbol.iterator]();!(n=(s=o.next()).done);n=!0){var a=s.value;if(t.test(a))return!0}}catch(e){r=!0,i=e}finally{try{!n&&o.return&&o.return()}finally{if(r)throw i}}return!1}},{key:"parseSDP",value:function(e){return!e&&this.sdp?this.sdp:(this.sdp=a.parse(this.body||""),this.sdp)}},{key:"toString",value:function(){var e=this.method+" "+this.ruri+" SIP/2.0\r\n";for(var t in this.headers)if(Object.prototype.hasOwnProperty.call(this.headers,t)){var n=!0,r=!1,i=void 0;try{for(var s,o=this.headers[t][Symbol.iterator]();!(n=(s=o.next()).done);n=!0){e+=t+": "+s.value+"\r\n"}}catch(e){r=!0,i=e}finally{try{!n&&o.return&&o.return()}finally{if(r)throw i}}}var a=!0,c=!1,d=void 0;try{for(var h,f=this.extraHeaders[Symbol.iterator]();!(a=(h=f.next()).done);a=!0){e+=h.value.trim()+"\r\n"}}catch(e){c=!0,d=e}finally{try{!a&&f.return&&f.return()}finally{if(c)throw d}}var p=[];switch(this.method){case l.REGISTER:p.push("path","gruu");break;case l.INVITE:this.ua.configuration.session_timers&&p.push("timer"),(this.ua.contact.pub_gruu||this.ua.contact.temp_gruu)&&p.push("gruu"),p.push("ice","replaces");break;case l.UPDATE:this.ua.configuration.session_timers&&p.push("timer"),p.push("ice")}if(p.push("outbound"),e+="Allow: "+l.ALLOWED_METHODS+"\r\n",e+="Supported: "+p+"\r\n",e+="User-Agent: "+l.USER_AGENT+"\r\n",this.body){e+="Content-Length: "+u.str_utf8_length(this.body)+"\r\n\r\n",e+=this.body}else e+="Content-Length: 0\r\n\r\n";return e}},{key:"clone",value:function(){var t=new e(this.method,this.ruri,this.ua);return Object.keys(this.headers).forEach(function(e){t.headers[e]=this.headers[e].slice()},this),t.body=this.body,t.extraHeaders=u.cloneArray(this.extraHeaders),t.to=this.to,t.from=this.from,t.call_id=this.call_id,t.cseq=this.cseq,t}}]),e}(),p=function(e){function t(e,n,i,o,a){s(this,t);var u=r(this,(t.__proto__||Object.getPrototypeOf(t)).call(this,l.INVITE,e,n,i,o,a));return u.transaction=null,u}return i(t,f),o(t,[{key:"cancel",value:function(e){this.transaction.cancel(e)}},{key:"clone",value:function(){var e=new t(this.ruri,this.ua);return Object.keys(this.headers).forEach(function(t){e.headers[t]=this.headers[t].slice()},this),e.body=this.body,e.extraHeaders=u.cloneArray(this.extraHeaders),e.to=this.to,e.from=this.from,e.call_id=this.call_id,e.cseq=this.cseq,e.transaction=this.transaction,e}}]),t}(),_=function(){function e(){s(this,e),this.data=null,this.headers=null,this.method=null,this.via=null,this.via_branch=null,this.call_id=null,this.cseq=null,this.from=null,this.from_tag=null,this.to=null,this.to_tag=null,this.body=null,this.sdp=null}return o(e,[{key:"addHeader",value:function(e,t){var n={raw:t};e=u.headerize(e),this.headers[e]?this.headers[e].push(n):this.headers[e]=[n]}},{key:"getHeader",value:function(e){var t=this.headers[u.headerize(e)];if(t)return t[0]?t[0].raw:void 0}},{key:"getHeaders",value:function(e){var t=this.headers[u.headerize(e)],n=[];if(!t)return[];var r=!0,i=!1,s=void 0;try{for(var o,a=t[Symbol.iterator]();!(r=(o=a.next()).done);r=!0){var l=o.value;n.push(l.raw)}}catch(e){i=!0,s=e}finally{try{!r&&a.return&&a.return()}finally{if(i)throw s}}return n}},{key:"hasHeader",value:function(e){return!!this.headers[u.headerize(e)]}},{key:"parseHeader",value:function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:0;if(e=u.headerize(e),this.headers[e]){if(!(t>=this.headers[e].length)){var n=this.headers[e][t],r=n.raw;if(n.parsed)return n.parsed;var i=d.parse(r,e.replace(/-/g,"_"));return-1===i?(this.headers[e].splice(t,1),void h('error parsing "'+e+'" header field with value "'+r+'"')):(n.parsed=i,i)}h('not so many "'+e+'" headers present')}else h('header "'+e+'" not present')}},{key:"s",value:function(e,t){return this.parseHeader(e,t)}},{key:"setHeader",value:function(e,t){var n={raw:t};this.headers[u.headerize(e)]=[n]}},{key:"parseSDP",value:function(e){return!e&&this.sdp?this.sdp:(this.sdp=a.parse(this.body||""),this.sdp)}},{key:"toString",value:function(){return this.data}}]),e}(),m=function(e){function t(e){s(this,t);var n=r(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return n.ua=e,n.headers={},n.ruri=null,n.transport=null,n.server_transaction=null,n}return i(t,_),o(t,[{key:"reply",value:function(e,t,n,r,i,s){var o=[],a=this.getHeader("To");if(e=e||null,t=t||null,!e||e<100||e>699)throw new TypeError("Invalid status_code: "+e);if(t&&"string"!=typeof t&&!(t instanceof String))throw new TypeError("Invalid reason_phrase: "+t);t=t||l.REASON_PHRASE[e]||"",n=u.cloneArray(n);var c="SIP/2.0 "+e+" "+t+"\r\n";if(this.method===l.INVITE&&e>100&&e<=200){var d=this.getHeaders("record-route"),h=!0,f=!1,p=void 0;try{for(var _,m=d[Symbol.iterator]();!(h=(_=m.next()).done);h=!0){c+="Record-Route: "+_.value+"\r\n"}}catch(e){f=!0,p=e}finally{try{!h&&m.return&&m.return()}finally{if(f)throw p}}}var v=this.getHeaders("via"),g=!0,y=!1,T=void 0;try{for(var C,S=v[Symbol.iterator]();!(g=(C=S.next()).done);g=!0){c+="Via: "+C.value+"\r\n"}}catch(e){y=!0,T=e}finally{try{!g&&S.return&&S.return()}finally{if(y)throw T}}!this.to_tag&&e>100?a+=";tag="+u.newTag():this.to_tag&&!this.s("to").hasParam("tag")&&(a+=";tag="+this.to_tag),c+="To: "+a+"\r\n",c+="From: "+this.getHeader("From")+"\r\n",c+="Call-ID: "+this.call_id+"\r\n",c+="CSeq: "+this.cseq+" "+this.method+"\r\n";var E=!0,b=!1,R=void 0;try{for(var A,w=n[Symbol.iterator]();!(E=(A=w.next()).done);E=!0){c+=A.value.trim()+"\r\n"}}catch(e){b=!0,R=e}finally{try{!E&&w.return&&w.return()}finally{if(b)throw R}}switch(this.method){case l.INVITE:this.ua.configuration.session_timers&&o.push("timer"),(this.ua.contact.pub_gruu||this.ua.contact.temp_gruu)&&o.push("gruu"),o.push("ice","replaces");break;case l.UPDATE:this.ua.configuration.session_timers&&o.push("timer"),r&&o.push("ice"),o.push("replaces")}if(o.push("outbound"),this.method===l.OPTIONS?(c+="Allow: "+l.ALLOWED_METHODS+"\r\n",c+="Accept: "+l.ACCEPTED_BODY_TYPES+"\r\n"):405===e?c+="Allow: "+l.ALLOWED_METHODS+"\r\n":415===e&&(c+="Accept: "+l.ACCEPTED_BODY_TYPES+"\r\n"),c+="Supported: "+o+"\r\n",r){c+="Content-Type: application/sdp\r\n",c+="Content-Length: "+u.str_utf8_length(r)+"\r\n\r\n",c+=r}else c+="Content-Length: 0\r\n\r\n";this.server_transaction.receiveResponse(e,c,i,s)}},{key:"reply_sl",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,n=this.getHeaders("via");if(!e||e<100||e>699)throw new TypeError("Invalid status_code: "+e);if(t&&"string"!=typeof t&&!(t instanceof String))throw new TypeError("Invalid reason_phrase: "+t);var r="SIP/2.0 "+e+" "+(t=t||l.REASON_PHRASE[e]||"")+"\r\n",i=!0,s=!1,o=void 0;try{for(var a,c=n[Symbol.iterator]();!(i=(a=c.next()).done);i=!0){r+="Via: "+a.value+"\r\n"}}catch(e){s=!0,o=e}finally{try{!i&&c.return&&c.return()}finally{if(s)throw o}}var d=this.getHeader("To");!this.to_tag&&e>100?d+=";tag="+u.newTag():this.to_tag&&!this.s("to").hasParam("tag")&&(d+=";tag="+this.to_tag),r+="To: "+d+"\r\n",r+="From: "+this.getHeader("From")+"\r\n",r+="Call-ID: "+this.call_id+"\r\n",r+="CSeq: "+this.cseq+" "+this.method+"\r\n",r+="Content-Length: 0\r\n\r\n",this.transport.send(r)}}]),t}(),v=function(e){function t(){s(this,t);var e=r(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return e.headers={},e.status_code=null,e.reason_phrase=null,e}return i(t,_),t}();t.exports={OutgoingRequest:f,InitialOutgoingInviteRequest:p,IncomingRequest:m,IncomingResponse:v}},{"./Constants":2,"./Grammar":7,"./NameAddrHeader":10,"./Utils":26,debug:29,"sdp-transform":36}],20:[function(e,t,n){"use strict";var r=e("./Utils"),i=e("./Grammar"),s=e("debug")("JsSIP:ERROR:Socket");s.log=console.warn.bind(console),n.isSocket=function(e){if(Array.isArray(e))return!1;if(void 0===e)return s("undefined JsSIP.Socket instance"),!1;try{if(!r.isString(e.url))throw s("missing or invalid JsSIP.Socket url property"),new Error;if(!r.isString(e.via_transport))throw s("missing or invalid JsSIP.Socket via_transport property"),new Error;if(-1===i.parse(e.sip_uri,"SIP_URI"))throw s("missing or invalid JsSIP.Socket sip_uri property"),new Error}catch(e){return!1}try{["connect","disconnect","send"].forEach(function(t){if(!r.isFunction(e[t]))throw s("missing or invalid JsSIP.Socket method: "+t),new Error})}catch(e){return!1}return!0}},{"./Grammar":7,"./Utils":26,debug:29}],21:[function(e,t,n){"use strict";var r=500;t.exports={T1:r,T2:4e3,T4:5e3,TIMER_B:32e3,TIMER_D:0,TIMER_F:32e3,TIMER_H:32e3,TIMER_I:0,TIMER_J:0,TIMER_K:0,TIMER_L:32e3,TIMER_M:32e3,PROVISIONAL_RESPONSE_INTERVAL:6e4}},{}],22:[function(e,t,n){"use strict";function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function i(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}function s(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}var o=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),a=e("events").EventEmitter,l=e("./Constants"),u=e("./SIPMessage"),c=e("./Timers"),d=e("debug")("JsSIP:NonInviteClientTransaction"),h=e("debug")("JsSIP:InviteClientTransaction"),f=e("debug")("JsSIP:AckClientTransaction"),p=e("debug")("JsSIP:NonInviteServerTransaction"),_=e("debug")("JsSIP:InviteServerTransaction"),m={STATUS_TRYING:1,STATUS_PROCEEDING:2,STATUS_CALLING:3,STATUS_ACCEPTED:4,STATUS_COMPLETED:5,STATUS_TERMINATED:6,STATUS_CONFIRMED:7,NON_INVITE_CLIENT:"nict",NON_INVITE_SERVER:"nist",INVITE_CLIENT:"ict",INVITE_SERVER:"ist"},v=function(e){function t(e,n,s,o){r(this,t);var a=i(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));a.type=m.NON_INVITE_CLIENT,a.id="z9hG4bK"+Math.floor(1e7*Math.random()),a.ua=e,a.transport=n,a.request=s,a.eventHandlers=o;var l="SIP/2.0/"+n.via_transport;return l+=" "+e.configuration.via_host+";branch="+a.id,a.request.setHeader("via",l),a.ua.newTransaction(a),a}return s(t,a),o(t,[{key:"stateChanged",value:function(e){this.state=e,this.emit("stateChanged")}},{key:"send",value:function(){var e=this;this.stateChanged(m.STATUS_TRYING),this.F=setTimeout(function(){e.timer_F()},c.TIMER_F),this.transport.send(this.request)||this.onTransportError()}},{key:"onTransportError",value:function(){d("transport error occurred, deleting transaction "+this.id),clearTimeout(this.F),clearTimeout(this.K),this.stateChanged(m.STATUS_TERMINATED),this.ua.destroyTransaction(this),this.eventHandlers.onTransportError()}},{key:"timer_F",value:function(){d("Timer F expired for transaction "+this.id),this.stateChanged(m.STATUS_TERMINATED),this.ua.destroyTransaction(this),this.eventHandlers.onRequestTimeout()}},{key:"timer_K",value:function(){this.stateChanged(m.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"receiveResponse",value:function(e){var t=this,n=e.status_code;if(n<200)switch(this.state){case m.STATUS_TRYING:case m.STATUS_PROCEEDING:this.stateChanged(m.STATUS_PROCEEDING),this.eventHandlers.onReceiveResponse(e)}else switch(this.state){case m.STATUS_TRYING:case m.STATUS_PROCEEDING:this.stateChanged(m.STATUS_COMPLETED),clearTimeout(this.F),408===n?this.eventHandlers.onRequestTimeout():this.eventHandlers.onReceiveResponse(e),this.K=setTimeout(function(){t.timer_K()},c.TIMER_K);break;case m.STATUS_COMPLETED:}}},{key:"C",get:function(){return m}}]),t}(),g=function(e){function t(e,n,s,o){r(this,t);var a=i(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));a.type=m.INVITE_CLIENT,a.id="z9hG4bK"+Math.floor(1e7*Math.random()),a.ua=e,a.transport=n,a.request=s,a.eventHandlers=o,s.transaction=a;var l="SIP/2.0/"+n.via_transport;return l+=" "+e.configuration.via_host+";branch="+a.id,a.request.setHeader("via",l),a.ua.newTransaction(a),a}return s(t,a),o(t,[{key:"stateChanged",value:function(e){this.state=e,this.emit("stateChanged")}},{key:"send",value:function(){var e=this;this.stateChanged(m.STATUS_CALLING),this.B=setTimeout(function(){e.timer_B()},c.TIMER_B),this.transport.send(this.request)||this.onTransportError()}},{key:"onTransportError",value:function(){clearTimeout(this.B),clearTimeout(this.D),clearTimeout(this.M),this.state!==m.STATUS_ACCEPTED&&(h("transport error occurred, deleting transaction "+this.id),this.eventHandlers.onTransportError()),this.stateChanged(m.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"timer_M",value:function(){h("Timer M expired for transaction "+this.id),this.state===m.STATUS_ACCEPTED&&(clearTimeout(this.B),this.stateChanged(m.STATUS_TERMINATED),this.ua.destroyTransaction(this))}},{key:"timer_B",value:function(){h("Timer B expired for transaction "+this.id),this.state===m.STATUS_CALLING&&(this.stateChanged(m.STATUS_TERMINATED),this.ua.destroyTransaction(this),this.eventHandlers.onRequestTimeout())}},{key:"timer_D",value:function(){h("Timer D expired for transaction "+this.id),clearTimeout(this.B),this.stateChanged(m.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"sendACK",value:function(e){var t=this,n=new u.OutgoingRequest(l.ACK,this.request.ruri,this.ua,{route_set:this.request.getHeader("route"),call_id:this.request.getHeader("call-id"),cseq:this.request.cseq});n.setHeader("from",this.request.getHeader("from")),n.setHeader("via",this.request.getHeader("via")),n.setHeader("to",e.getHeader("to")),this.D=setTimeout(function(){t.timer_D()},c.TIMER_D),this.transport.send(n)}},{key:"cancel",value:function(e){if(this.state===m.STATUS_PROCEEDING){var t=new u.OutgoingRequest(l.CANCEL,this.request.ruri,this.ua,{route_set:this.request.getHeader("route"),call_id:this.request.getHeader("call-id"),cseq:this.request.cseq});t.setHeader("from",this.request.getHeader("from")),t.setHeader("via",this.request.getHeader("via")),t.setHeader("to",this.request.getHeader("to")),e&&t.setHeader("reason",e),this.transport.send(t)}}},{key:"receiveResponse",value:function(e){var t=this,n=e.status_code;if(n>=100&&n<=199)switch(this.state){case m.STATUS_CALLING:this.stateChanged(m.STATUS_PROCEEDING),this.eventHandlers.onReceiveResponse(e);break;case m.STATUS_PROCEEDING:this.eventHandlers.onReceiveResponse(e)}else if(n>=200&&n<=299)switch(this.state){case m.STATUS_CALLING:case m.STATUS_PROCEEDING:this.stateChanged(m.STATUS_ACCEPTED),this.M=setTimeout(function(){t.timer_M()},c.TIMER_M),this.eventHandlers.onReceiveResponse(e);break;case m.STATUS_ACCEPTED:this.eventHandlers.onReceiveResponse(e)}else if(n>=300&&n<=699)switch(this.state){case m.STATUS_CALLING:case m.STATUS_PROCEEDING:this.stateChanged(m.STATUS_COMPLETED),this.sendACK(e),this.eventHandlers.onReceiveResponse(e);break;case m.STATUS_COMPLETED:this.sendACK(e)}}},{key:"C",get:function(){return m}}]),t}(),y=function(e){function t(e,n,s,o){r(this,t);var a=i(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));a.id="z9hG4bK"+Math.floor(1e7*Math.random()),a.transport=n,a.request=s,a.eventHandlers=o;var l="SIP/2.0/"+n.via_transport;return l+=" "+e.configuration.via_host+";branch="+a.id,a.request.setHeader("via",l),a}return s(t,a),o(t,[{key:"send",value:function(){this.transport.send(this.request)||this.onTransportError()}},{key:"onTransportError",value:function(){f("transport error occurred for transaction "+this.id),this.eventHandlers.onTransportError()}},{key:"C",get:function(){return m}}]),t}(),T=function(e){function t(e,n,s){r(this,t);var o=i(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return o.type=m.NON_INVITE_SERVER,o.id=s.via_branch,o.ua=e,o.transport=n,o.request=s,o.last_response="",s.server_transaction=o,o.state=m.STATUS_TRYING,e.newTransaction(o),o}return s(t,a),o(t,[{key:"stateChanged",value:function(e){this.state=e,this.emit("stateChanged")}},{key:"timer_J",value:function(){p("Timer J expired for transaction "+this.id),this.stateChanged(m.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"onTransportError",value:function(){this.transportError||(this.transportError=!0,p("transport error occurred, deleting transaction "+this.id),clearTimeout(this.J),this.stateChanged(m.STATUS_TERMINATED),this.ua.destroyTransaction(this))}},{key:"receiveResponse",value:function(e,t,n,r){var i=this;if(100===e)switch(this.state){case m.STATUS_TRYING:this.stateChanged(m.STATUS_PROCEEDING),this.transport.send(t)||this.onTransportError();break;case m.STATUS_PROCEEDING:this.last_response=t,this.transport.send(t)?n&&n():(this.onTransportError(),r&&r())}else if(e>=200&&e<=699)switch(this.state){case m.STATUS_TRYING:case m.STATUS_PROCEEDING:this.stateChanged(m.STATUS_COMPLETED),this.last_response=t,this.J=setTimeout(function(){i.timer_J()},c.TIMER_J),this.transport.send(t)?n&&n():(this.onTransportError(),r&&r());break;case m.STATUS_COMPLETED:}}},{key:"C",get:function(){return m}}]),t}(),C=function(e){function t(e,n,s){r(this,t);var o=i(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));return o.type=m.INVITE_SERVER,o.id=s.via_branch,o.ua=e,o.transport=n,o.request=s,o.last_response="",s.server_transaction=o,o.state=m.STATUS_PROCEEDING,e.newTransaction(o),o.resendProvisionalTimer=null,s.reply(100),o}return s(t,a),o(t,[{key:"stateChanged",value:function(e){this.state=e,this.emit("stateChanged")}},{key:"timer_H",value:function(){_("Timer H expired for transaction "+this.id),this.state===m.STATUS_COMPLETED&&_("ACK not received, dialog will be terminated"),this.stateChanged(m.STATUS_TERMINATED),this.ua.destroyTransaction(this)}},{key:"timer_I",value:function(){this.stateChanged(m.STATUS_TERMINATED)}},{key:"timer_L",value:function(){_("Timer L expired for transaction "+this.id),this.state===m.STATUS_ACCEPTED&&(this.stateChanged(m.STATUS_TERMINATED),this.ua.destroyTransaction(this))}},{key:"onTransportError",value:function(){this.transportError||(this.transportError=!0,_("transport error occurred, deleting transaction "+this.id),null!==this.resendProvisionalTimer&&(clearInterval(this.resendProvisionalTimer),this.resendProvisionalTimer=null),clearTimeout(this.L),clearTimeout(this.H),clearTimeout(this.I),this.stateChanged(m.STATUS_TERMINATED),this.ua.destroyTransaction(this))}},{key:"resend_provisional",value:function(){this.transport.send(this.last_response)||this.onTransportError()}},{key:"receiveResponse",value:function(e,t,n,r){var i=this;if(e>=100&&e<=199)switch(this.state){case m.STATUS_PROCEEDING:this.transport.send(t)||this.onTransportError(),this.last_response=t}if(e>100&&e<=199&&this.state===m.STATUS_PROCEEDING)null===this.resendProvisionalTimer&&(this.resendProvisionalTimer=setInterval(function(){i.resend_provisional()},c.PROVISIONAL_RESPONSE_INTERVAL));else if(e>=200&&e<=299)switch(this.state){case m.STATUS_PROCEEDING:this.stateChanged(m.STATUS_ACCEPTED),this.last_response=t,this.L=setTimeout(function(){i.timer_L()},c.TIMER_L),null!==this.resendProvisionalTimer&&(clearInterval(this.resendProvisionalTimer),this.resendProvisionalTimer=null);case m.STATUS_ACCEPTED:this.transport.send(t)?n&&n():(this.onTransportError(),r&&r())}else if(e>=300&&e<=699)switch(this.state){case m.STATUS_PROCEEDING:null!==this.resendProvisionalTimer&&(clearInterval(this.resendProvisionalTimer),this.resendProvisionalTimer=null),this.transport.send(t)?(this.stateChanged(m.STATUS_COMPLETED),this.H=setTimeout(function(){i.timer_H()},c.TIMER_H),n&&n()):(this.onTransportError(),r&&r())}}},{key:"C",get:function(){return m}}]),t}();t.exports={C:m,NonInviteClientTransaction:v,InviteClientTransaction:g,AckClientTransaction:y,NonInviteServerTransaction:T,InviteServerTransaction:C,checkTransaction:function(e,t){var n=e._transactions,r=void 0;switch(t.method){case l.INVITE:if(r=n.ist[t.via_branch]){switch(r.state){case m.STATUS_PROCEEDING:r.transport.send(r.last_response);break;case m.STATUS_ACCEPTED:}return!0}break;case l.ACK:if(!(r=n.ist[t.via_branch]))return!1;if(r.state===m.STATUS_ACCEPTED)return!1;if(r.state===m.STATUS_COMPLETED)return r.state=m.STATUS_CONFIRMED,r.I=setTimeout(function(){r.timer_I()},c.TIMER_I),!0;break;case l.CANCEL:return(r=n.ist[t.via_branch])?(t.reply_sl(200),r.state!==m.STATUS_PROCEEDING):(t.reply_sl(481),!0);default:if(r=n.nist[t.via_branch]){switch(r.state){case m.STATUS_TRYING:break;case m.STATUS_PROCEEDING:case m.STATUS_COMPLETED:r.transport.send(r.last_response)}return!0}}}}},{"./Constants":2,"./SIPMessage":19,"./Timers":21,debug:29,events:31}],23:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("./Socket"),s=e("debug")("JsSIP:Transport"),o=e("debug")("JsSIP:ERROR:Transport");o.log=console.warn.bind(console);var a={STATUS_CONNECTED:0,STATUS_CONNECTING:1,STATUS_DISCONNECTED:2,SOCKET_STATUS_READY:0,SOCKET_STATUS_ERROR:1,recovery_options:{min_interval:2,max_interval:30}};t.exports=function(){function e(t){var n=arguments.length>1&&void 0!==arguments[1]?arguments[1]:a.recovery_options;if(function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),s("new()"),this.status=a.STATUS_DISCONNECTED,this.socket=null,this.sockets=[],this.recovery_options=n,this.recover_attempts=0,this.recovery_timer=null,this.close_requested=!1,void 0===t)throw new TypeError("Invalid argument. undefined 'sockets' argument");t instanceof Array||(t=[t]),t.forEach(function(e){if(!i.isSocket(e.socket))throw new TypeError("Invalid argument. invalid 'JsSIP.Socket' instance");if(e.weight&&!Number(e.weight))throw new TypeError("Invalid argument. 'weight' attribute is not a number");this.sockets.push({socket:e.socket,weight:e.weight||0,status:a.SOCKET_STATUS_READY})},this),this._getSocket()}return r(e,[{key:"connect",value:function(){s("connect()"),this.isConnected()?s("Transport is already connected"):this.isConnecting()?s("Transport is connecting"):(this.close_requested=!1,this.status=a.STATUS_CONNECTING,this.onconnecting({socket:this.socket,attempts:this.recover_attempts}),this.close_requested||(this.socket.onconnect=this._onConnect.bind(this),this.socket.ondisconnect=this._onDisconnect.bind(this),this.socket.ondata=this._onData.bind(this),this.socket.connect()))}},{key:"disconnect",value:function(){s("close()"),this.close_requested=!0,this.recover_attempts=0,this.status=a.STATUS_DISCONNECTED,null!==this.recovery_timer&&(clearTimeout(this.recovery_timer),this.recovery_timer=null),this.socket.onconnect=function(){},this.socket.ondisconnect=function(){},this.socket.ondata=function(){},this.socket.disconnect(),this.ondisconnect()}},{key:"send",value:function(e){if(s("send()"),!this.isConnected())return o("unable to send message, transport is not connected"),!1;var t=e.toString();return s("sending message:\n\n"+t+"\n"),this.socket.send(t)}},{key:"isConnected",value:function(){return this.status===a.STATUS_CONNECTED}},{key:"isConnecting",value:function(){return this.status===a.STATUS_CONNECTING}},{key:"_reconnect",value:function(){var e=this;this.recover_attempts+=1;var t=Math.floor(Math.random()*Math.pow(2,this.recover_attempts)+1);t<this.recovery_options.min_interval?t=this.recovery_options.min_interval:t>this.recovery_options.max_interval&&(t=this.recovery_options.max_interval),s("reconnection attempt: "+this.recover_attempts+". next connection attempt in "+t+" seconds"),this.recovery_timer=setTimeout(function(){e.close_requested||e.isConnected()||e.isConnecting()||(e._getSocket(),e.connect())},1e3*t)}},{key:"_getSocket",value:function(){var e=[];if(this.sockets.forEach(function(t){t.status!==a.SOCKET_STATUS_ERROR&&(0===e.length?e.push(t):t.weight>e[0].weight?e=[t]:t.weight===e[0].weight&&e.push(t))}),0===e.length)return this.sockets.forEach(function(e){e.status=a.SOCKET_STATUS_READY}),void this._getSocket();var t=Math.floor(Math.random()*e.length);this.socket=e[t].socket}},{key:"_onConnect",value:function(){this.recover_attempts=0,this.status=a.STATUS_CONNECTED,null!==this.recovery_timer&&(clearTimeout(this.recovery_timer),this.recovery_timer=null),this.onconnect({socket:this})}},{key:"_onDisconnect",value:function(e,t,n){this.status=a.STATUS_DISCONNECTED,this.ondisconnect({socket:this.socket,error:e,code:t,reason:n}),this.close_requested||(this.sockets.forEach(function(e){this.socket===e.socket&&(e.status=a.SOCKET_STATUS_ERROR)},this),this._reconnect(e))}},{key:"_onData",value:function(e){if("\r\n"!==e){if("string"!=typeof e){try{e=String.fromCharCode.apply(null,new Uint8Array(e))}catch(e){return void s("received binary message failed to be converted into string, message discarded")}s("received binary message:\n\n"+e+"\n")}else s("received text message:\n\n"+e+"\n");this.ondata({transport:this,message:e})}else s("received message with CRLF Keep Alive response")}},{key:"via_transport",get:function(){return this.socket.via_transport}},{key:"url",get:function(){return this.socket.url}},{key:"sip_uri",get:function(){return this.socket.sip_uri}}]),e}()},{"./Socket":20,debug:29}],24:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("events").EventEmitter,s=e("./Constants"),o=e("./Registrator"),a=e("./RTCSession"),l=e("./Message"),u=e("./Transactions"),c=e("./Transport"),d=e("./Utils"),h=e("./Exceptions"),f=e("./URI"),p=e("./Grammar"),_=e("./Parser"),m=e("./SIPMessage"),v=e("./sanityCheck"),g=e("./Config"),y=e("debug")("JsSIP:UA"),T=e("debug")("JsSIP:ERROR:UA");T.log=console.warn.bind(console);var C={STATUS_INIT:0,STATUS_READY:1,STATUS_USER_CLOSED:2,STATUS_NOT_READY:3,CONFIGURATION_ERROR:1,NETWORK_ERROR:2};t.exports=function(e){function t(e){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t),y("new() [configuration:%o]",e);var n=function(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(t.__proto__||Object.getPrototypeOf(t)).call(this));if(n._cache={credentials:{}},n._configuration=Object.assign({},g.settings),n._dynConfiguration={},n._dialogs={},n._applicants={},n._sessions={},n._transport=null,n._contact=null,n._status=C.STATUS_INIT,n._error=null,n._transactions={nist:{},nict:{},ist:{},ict:{}},n._data={},n._closeTimer=null,void 0===e)throw new TypeError("Not enough arguments");try{n._loadConfig(e)}catch(e){throw n._status=C.STATUS_NOT_READY,n._error=C.CONFIGURATION_ERROR,e}return n._registrator=new o(n),n}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(t,i),r(t,null,[{key:"C",get:function(){return C}}]),r(t,[{key:"start",value:function(){y("start()"),this._status===C.STATUS_INIT?this._transport.connect():this._status===C.STATUS_USER_CLOSED?(y("restarting UA"),null!==this._closeTimer&&(clearTimeout(this._closeTimer),this._closeTimer=null,this._transport.disconnect()),this._status=C.STATUS_INIT,this._transport.connect()):y(this._status===C.STATUS_READY?"UA is in READY status, not restarted":"ERROR: connection is down, Auto-Recovery system is trying to reconnect"),this._dynConfiguration.register=this._configuration.register}},{key:"register",value:function(){y("register()"),this._dynConfiguration.register=!0,this._registrator.register()}},{key:"unregister",value:function(e){y("unregister()"),this._dynConfiguration.register=!1,this._registrator.unregister(e)}},{key:"registrator",value:function(){return this._registrator}},{key:"isRegistered",value:function(){return this._registrator.registered}},{key:"isConnected",value:function(){return this._transport.isConnected()}},{key:"call",value:function(e,t){y("call()");var n=new a(this);return n.connect(e,t),n}},{key:"sendMessage",value:function(e,t,n){y("sendMessage()");var r=new l(this);return r.send(e,t,n),r}},{key:"terminateSessions",value:function(e){y("terminateSessions()");for(var t in this._sessions)this._sessions[t].isEnded()||this._sessions[t].terminate(e)}},{key:"stop",value:function(){var e=this;if(y("stop()"),this._dynConfiguration={},this._status!==C.STATUS_USER_CLOSED){this._registrator.close();var t=Object.keys(this._sessions).length;for(var n in this._sessions)if(Object.prototype.hasOwnProperty.call(this._sessions,n)){y("closing session "+n);try{this._sessions[n].terminate()}catch(e){}}for(var r in this._applicants)if(Object.prototype.hasOwnProperty.call(this._applicants,r))try{this._applicants[r].close()}catch(e){}this._status=C.STATUS_USER_CLOSED;0===Object.keys(this._transactions.nict).length+Object.keys(this._transactions.nist).length+Object.keys(this._transactions.ict).length+Object.keys(this._transactions.ist).length&&0===t?this._transport.disconnect():this._closeTimer=setTimeout(function(){e._closeTimer=null,e._transport.disconnect()},2e3)}else y("UA already closed")}},{key:"normalizeTarget",value:function(e){return d.normalizeTarget(e,this._configuration.hostport_params)}},{key:"get",value:function(e){switch(e){case"realm":return this._configuration.realm;case"ha1":return this._configuration.ha1;default:return void T('get() | cannot get "%s" parameter in runtime',e)}}},{key:"set",value:function(e,t){switch(e){case"password":this._configuration.password=String(t);break;case"realm":this._configuration.realm=String(t);break;case"ha1":this._configuration.ha1=String(t),this._configuration.password=null;break;case"display_name":if(-1===p.parse('"'+t+'"',"display_name"))return T('set() | wrong "display_name"'),!1;this._configuration.display_name=t;break;default:return T('set() | cannot set "%s" parameter in runtime',e),!1}return!0}},{key:"newTransaction",value:function(e){this._transactions[e.type][e.id]=e,this.emit("newTransaction",{transaction:e})}},{key:"destroyTransaction",value:function(e){delete this._transactions[e.type][e.id],this.emit("transactionDestroyed",{transaction:e})}},{key:"newDialog",value:function(e){this._dialogs[e.id]=e}},{key:"destroyDialog",value:function(e){delete this._dialogs[e.id]}},{key:"newMessage",value:function(e,t){this._applicants[e]=e,this.emit("newMessage",t)}},{key:"destroyMessage",value:function(e){delete this._applicants[e]}},{key:"newRTCSession",value:function(e,t){this._sessions[e.id]=e,this.emit("newRTCSession",t)}},{key:"destroyRTCSession",value:function(e){delete this._sessions[e.id]}},{key:"registered",value:function(e){this.emit("registered",e)}},{key:"unregistered",value:function(e){this.emit("unregistered",e)}},{key:"registrationFailed",value:function(e){this.emit("registrationFailed",e)}},{key:"receiveRequest",value:function(e){var t=e.method;if(e.ruri.user!==this._configuration.uri.user&&e.ruri.user!==this._contact.uri.user)return y("Request-URI does not point to us"),void(e.method!==s.ACK&&e.reply_sl(404));if(e.ruri.scheme!==s.SIPS){if(!u.checkTransaction(this,e)){if(t===s.INVITE?new u.InviteServerTransaction(this,this._transport,e):t!==s.ACK&&t!==s.CANCEL&&new u.NonInviteServerTransaction(this,this._transport,e),t===s.OPTIONS)e.reply(200);else if(t===s.MESSAGE){if(0===this.listeners("newMessage").length)return void e.reply(405);new l(this).init_incoming(e)}else if(t===s.INVITE&&!e.to_tag&&0===this.listeners("newRTCSession").length)return void e.reply(405);var n=void 0,r=void 0;if(e.to_tag)(n=this._findDialog(e.call_id,e.from_tag,e.to_tag))?n.receiveRequest(e):t===s.NOTIFY?(r=this._findSession(e))?r.receiveRequest(e):(y("received NOTIFY request for a non existent subscription"),e.reply(481,"Subscription does not exist")):t!==s.ACK&&e.reply(481);else switch(t){case s.INVITE:if(window.RTCPeerConnection)if(e.hasHeader("replaces")){var i=e.replaces;(n=this._findDialog(i.call_id,i.from_tag,i.to_tag))?(r=n.owner).isEnded()?e.reply(603):r.receiveRequest(e):e.reply(481)}else(r=new a(this)).init_incoming(e);else T("INVITE received but WebRTC is not supported"),e.reply(488);break;case s.BYE:e.reply(481);break;case s.CANCEL:(r=this._findSession(e))?r.receiveRequest(e):y("received CANCEL request for a non existent session");break;case s.ACK:break;default:e.reply(405)}}}else e.reply_sl(416)}},{key:"_findSession",value:function(e){var t=e.call_id,n=e.from_tag,r=e.to_tag,i=t+n,s=this._sessions[i],o=t+r,a=this._sessions[o];return s||(a||null)}},{key:"_findDialog",value:function(e,t,n){var r=e+t+n,i=this._dialogs[r];return i||(r=e+n+t,(i=this._dialogs[r])||null)}},{key:"_loadConfig",value:function(e){try{g.load(this._configuration,e)}catch(e){throw e}0===this._configuration.display_name&&(this._configuration.display_name="0"),this._configuration.instance_id||(this._configuration.instance_id=d.newUUID()),this._configuration.jssip_id=d.createRandomToken(5);var t=this._configuration.uri.clone();t.user=null,this._configuration.hostport_params=t.toString().replace(/^sip:/i,"");try{this._transport=new c(this._configuration.sockets,{max_interval:this._configuration.connection_recovery_max_interval,min_interval:this._configuration.connection_recovery_min_interval}),this._transport.onconnecting=function(e){this.emit("connecting",e)}.bind(this),this._transport.onconnect=function(e){this._status!==C.STATUS_USER_CLOSED&&(this._status=C.STATUS_READY,this._error=null,this.emit("connected",e),this._dynConfiguration.register&&this._registrator.register())}.bind(this),this._transport.ondisconnect=function(e){var t=!0,n=!1,r=void 0;try{for(var i,s=["nict","ict","nist","ist"][Symbol.iterator]();!(t=(i=s.next()).done);t=!0){var o=i.value;for(var a in this._transactions[o])Object.prototype.hasOwnProperty.call(this._transactions[o],a)&&this._transactions[o][a].onTransportError()}}catch(e){n=!0,r=e}finally{try{!t&&s.return&&s.return()}finally{if(n)throw r}}this.emit("disconnected",e),this._registrator.onTransportClosed(),this._status!==C.STATUS_USER_CLOSED&&(this._status=C.STATUS_NOT_READY,this._error=C.NETWORK_ERROR)}.bind(this),this._transport.ondata=function(e){var t=e.transport,n=e.message;if((n=_.parseMessage(n,this))&&!(this._status===C.STATUS_USER_CLOSED&&n instanceof m.IncomingRequest)&&v(n,this,t))if(n instanceof m.IncomingRequest)n.transport=t,this.receiveRequest(n);else if(n instanceof m.IncomingResponse){var r=void 0;switch(n.method){case s.INVITE:(r=this._transactions.ict[n.via_branch])&&r.receiveResponse(n);break;case s.ACK:break;default:(r=this._transactions.nict[n.via_branch])&&r.receiveResponse(n)}}}.bind(this)}catch(e){throw T(e),new h.ConfigurationError("sockets",this._configuration.sockets)}if(delete this._configuration.sockets,this._configuration.authorization_user||(this._configuration.authorization_user=this._configuration.uri.user),!this._configuration.registrar_server){var n=this._configuration.uri.clone();n.user=null,n.clearParams(),n.clearHeaders(),this._configuration.registrar_server=n}this._configuration.no_answer_timeout*=1e3,this._configuration.contact_uri?this._configuration.via_host=this._configuration.contact_uri.host:this._configuration.contact_uri=new f("sip",d.createRandomToken(8),this._configuration.via_host,null,{transport:"ws"}),this._contact={pub_gruu:null,temp_gruu:null,uri:this._configuration.contact_uri,toString:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=e.anonymous||null,n=e.outbound||null,r="<";return r+=t?this.temp_gruu||"sip:anonymous@anonymous.invalid;transport=ws":this.pub_gruu||this.uri.toString(),!n||(t?this.temp_gruu:this.pub_gruu)||(r+=";ob"),r+=">"}};var r=["password","realm","ha1","display_name","register"];for(var i in this._configuration)Object.prototype.hasOwnProperty.call(this._configuration,i)&&(-1!==r.indexOf(i)?Object.defineProperty(this._configuration,i,{writable:!0,configurable:!1}):Object.defineProperty(this._configuration,i,{writable:!1,configurable:!1}));y("configuration parameters after validation:");for(var o in this._configuration)if(Object.prototype.hasOwnProperty.call(g.settings,o))switch(o){case"uri":case"registrar_server":y("- "+o+": "+this._configuration[o]);break;case"password":case"ha1":y("- "+o+": NOT SHOWN");break;default:y("- "+o+": "+JSON.stringify(this._configuration[o]))}}},{key:"C",get:function(){return C}},{key:"status",get:function(){return this._status}},{key:"contact",get:function(){return this._contact}},{key:"configuration",get:function(){return this._configuration}},{key:"transport",get:function(){return this._transport}}]),t}()},{"./Config":1,"./Constants":2,"./Exceptions":6,"./Grammar":7,"./Message":9,"./Parser":11,"./RTCSession":12,"./Registrator":17,"./SIPMessage":19,"./Transactions":22,"./Transport":23,"./URI":25,"./Utils":26,"./sanityCheck":28,debug:29,events:31}],25:[function(e,t,n){"use strict";var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=e("./Constants"),s=e("./Utils"),o=e("./Grammar");t.exports=function(){function e(t,n,r,s){var o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:{},a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:{};if(function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),!r)throw new TypeError('missing or invalid "host" parameter');this._parameters={},this._headers={},this._scheme=t||i.SIP,this._user=n,this._host=r,this._port=s;for(var l in o)Object.prototype.hasOwnProperty.call(o,l)&&this.setParam(l,o[l]);for(var u in a)Object.prototype.hasOwnProperty.call(a,u)&&this.setHeader(u,a[u])}return r(e,null,[{key:"parse",value:function(e){return-1!==(e=o.parse(e,"SIP_URI"))?e:void 0}}]),r(e,[{key:"setParam",value:function(e,t){e&&(this._parameters[e.toLowerCase()]=void 0===t||null===t?null:t.toString())}},{key:"getParam",value:function(e){if(e)return this._parameters[e.toLowerCase()]}},{key:"hasParam",value:function(e){if(e)return this._parameters.hasOwnProperty(e.toLowerCase())&&!0||!1}},{key:"deleteParam",value:function(e){if(e=e.toLowerCase(),this._parameters.hasOwnProperty(e)){var t=this._parameters[e];return delete this._parameters[e],t}}},{key:"clearParams",value:function(){this._parameters={}}},{key:"setHeader",value:function(e,t){this._headers[s.headerize(e)]=Array.isArray(t)?t:[t]}},{key:"getHeader",value:function(e){if(e)return this._headers[s.headerize(e)]}},{key:"hasHeader",value:function(e){if(e)return this._headers.hasOwnProperty(s.headerize(e))&&!0||!1}},{key:"deleteHeader",value:function(e){if(e=s.headerize(e),this._headers.hasOwnProperty(e)){var t=this._headers[e];return delete this._headers[e],t}}},{key:"clearHeaders",value:function(){this._headers={}}},{key:"clone",value:function(){return new e(this._scheme,this._user,this._host,this._port,JSON.parse(JSON.stringify(this._parameters)),JSON.parse(JSON.stringify(this._headers)))}},{key:"toString",value:function(){var e=[],t=this._scheme+":";this._user&&(t+=s.escapeUser(this._user)+"@"),t+=this._host,(this._port||0===this._port)&&(t+=":"+this._port);for(var n in this._parameters)Object.prototype.hasOwnProperty.call(this._parameters,n)&&(t+=";"+n,null!==this._parameters[n]&&(t+="="+this._parameters[n]));for(var r in this._headers)if(Object.prototype.hasOwnProperty.call(this._headers,r)){var i=!0,o=!1,a=void 0;try{for(var l,u=this._headers[r][Symbol.iterator]();!(i=(l=u.next()).done);i=!0){var c=l.value;e.push(r+"="+c)}}catch(e){o=!0,a=e}finally{try{!i&&u.return&&u.return()}finally{if(o)throw a}}}return e.length>0&&(t+="?"+e.join("&")),t}},{key:"toAor",value:function(e){var t=this._scheme+":";return this._user&&(t+=s.escapeUser(this._user)+"@"),t+=this._host,e&&(this._port||0===this._port)&&(t+=":"+this._port),t}},{key:"scheme",get:function(){return this._scheme},set:function(e){this._scheme=e.toLowerCase()}},{key:"user",get:function(){return this._user},set:function(e){this._user=e}},{key:"host",get:function(){return this._host},set:function(e){this._host=e.toLowerCase()}},{key:"port",get:function(){return this._port},set:function(e){this._port=0===e?e:parseInt(e,10)||null}}]),e}()},{"./Constants":2,"./Grammar":7,"./Utils":26}],26:[function(e,t,n){"use strict";var r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e},i=e("./Constants"),s=e("./URI"),o=e("./Grammar");n.str_utf8_length=function(e){return unescape(encodeURIComponent(e)).length};var a=n.isFunction=function(e){return void 0!==e&&"[object Function]"===Object.prototype.toString.call(e)};n.isString=function(e){return void 0!==e&&"[object String]"===Object.prototype.toString.call(e)},n.isDecimal=function(e){return!isNaN(e)&&parseFloat(e)===parseInt(e,10)},n.isEmpty=function(e){return null===e||""===e||void 0===e||Array.isArray(e)&&0===e.length||"number"==typeof e&&isNaN(e)},n.hasMethods=function(e){for(var t=arguments.length,n=Array(t>1?t-1:0),r=1;r<t;r++)n[r-1]=arguments[r];var i=!0,s=!1,o=void 0;try{for(var l,u=n[Symbol.iterator]();!(i=(l=u.next()).done);i=!0){var c=l.value;if(a(e[c]))return!1}}catch(e){s=!0,o=e}finally{try{!i&&u.return&&u.return()}finally{if(s)throw o}}return!0};var l=n.createRandomToken=function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:32,n=void 0,r="";for(n=0;n<e;n++)r+=(Math.random()*t|0).toString(t);return r};n.newTag=function(){return l(10)},n.newUUID=function(){return"xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g,function(e){var t=16*Math.random()|0;return("x"===e?t:3&t|8).toString(16)})},n.hostType=function(e){if(e)return-1!==(e=o.parse(e,"host"))?e.host_type:void 0};var u=n.escapeUser=function(e){return encodeURIComponent(decodeURIComponent(e)).replace(/%3A/gi,":").replace(/%2B/gi,"+").replace(/%3F/gi,"?").replace(/%2F/gi,"/")};n.normalizeTarget=function(e,t){if(e){if(e instanceof s)return e;if("string"==typeof e){var n=e.split("@"),r=void 0,o=void 0;switch(n.length){case 1:if(!t)return;r=e,o=t;break;case 2:r=n[0],o=n[1];break;default:r=n.slice(0,n.length-1).join("@"),o=n[n.length-1]}r=r.replace(/^(sips?|tel):/i,""),/^[-.()]*\+?[0-9\-.()]+$/.test(r)&&(r=r.replace(/[-.()]/g,"")),e=i.SIP+":"+u(r)+"@"+o;var a=void 0;return(a=s.parse(e))?a:void 0}}else;},n.headerize=function(e){var t={"Call-Id":"Call-ID",Cseq:"CSeq","Www-Authenticate":"WWW-Authenticate"},n=e.toLowerCase().replace(/_/g,"-").split("-"),r="",i=n.length,s=void 0;for(s=0;s<i;s++)0!==s&&(r+="-"),r+=n[s].charAt(0).toUpperCase()+n[s].substring(1);return t[r]&&(r=t[r]),r},n.sipErrorCause=function(e){for(var t in i.SIP_ERROR_CAUSES)if(-1!==i.SIP_ERROR_CAUSES[t].indexOf(e))return i.causes[t];return i.causes.SIP_FAILURE_CODE},n.getRandomTestNetIP=function(){return"192.0.2."+function(e,t){return Math.floor(Math.random()*(t-e+1)+e)}(1,254)},n.calculateMD5=function(e){function t(e,t){return e<<t|e>>>32-t}function n(e,t){var 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t,n;if(!this._events)return this;if(!this._events.removeListener)return 0===arguments.length?this._events={}:this._events[e]&&delete this._events[e],this;if(0===arguments.length){for(t in this._events)"removeListener"!==t&&this.removeAllListeners(t);return this.removeAllListeners("removeListener"),this._events={},this}if(n=this._events[e],i(n))this.removeListener(e,n);else if(n)for(;n.length;)this.removeListener(e,n[n.length-1]);return delete this._events[e],this},r.prototype.listeners=function(e){return this._events&&this._events[e]?i(this._events[e])?[this._events[e]]:this._events[e].slice():[]},r.prototype.listenerCount=function(e){if(this._events){var t=this._events[e];if(i(t))return 1;if(t)return t.length}return 0},r.listenerCount=function(e,t){return e.listenerCount(t)}},{}],32:[function(e,t,n){function r(e,t,n){if(!(e<t))return e<1.5*t?Math.floor(e/t)+" "+n:Math.ceil(e/t)+" "+n+"s"}var i=1e3,s=60*i,o=60*s,a=24*o,l=365.25*a;t.exports=function(e,t){t=t||{};var n=typeof e;if("string"===n&&e.length>0)return function(e){if(!((e=String(e)).length>100)){var t=/^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(e);if(t){var n=parseFloat(t[1]);switch((t[2]||"ms").toLowerCase()){case"years":case"year":case"yrs":case"yr":case"y":return n*l;case"days":case"day":case"d":return n*a;case"hours":case"hour":case"hrs":case"hr":case"h":return n*o;case"minutes":case"minute":case"mins":case"min":case"m":return n*s;case"seconds":case"second":case"secs":case"sec":case"s":return n*i;case"milliseconds":case"millisecond":case"msecs":case"msec":case"ms":return n;default:return}}}}(e);if("number"===n&&!1===isNaN(e))return t.long?function(e){return r(e,a,"day")||r(e,o,"hour")||r(e,s,"minute")||r(e,i,"second")||e+" ms"}(e):function(e){return e>=a?Math.round(e/a)+"d":e>=o?Math.round(e/o)+"h":e>=s?Math.round(e/s)+"m":e>=i?Math.round(e/i)+"s":e+"ms"}(e);throw new Error("val is not a non-empty string or a valid number. val="+JSON.stringify(e))}},{}],33:[function(e,t,n){function r(){throw new Error("setTimeout has not been defined")}function i(){throw new Error("clearTimeout has not been defined")}function s(e){if(c===setTimeout)return setTimeout(e,0);if((c===r||!c)&&setTimeout)return c=setTimeout,setTimeout(e,0);try{return c(e,0)}catch(t){try{return c.call(null,e,0)}catch(t){return c.call(this,e,0)}}}function o(){_&&f&&(_=!1,f.length?p=f.concat(p):m=-1,p.length&&a())}function a(){if(!_){var e=s(o);_=!0;for(var t=p.length;t;){for(f=p,p=[];++m<t;)f&&f[m].run();m=-1,t=p.length}f=null,_=!1,function(e){if(d===clearTimeout)return clearTimeout(e);if((d===i||!d)&&clearTimeout)return d=clearTimeout,clearTimeout(e);try{d(e)}catch(t){try{return d.call(null,e)}catch(t){return d.call(this,e)}}}(e)}}function l(e,t){this.fun=e,this.array=t}function u(){}var c,d,h=t.exports={};!function(){try{c="function"==typeof setTimeout?setTimeout:r}catch(e){c=r}try{d="function"==typeof clearTimeout?clearTimeout:i}catch(e){d=i}}();var f,p=[],_=!1,m=-1;h.nextTick=function(e){var t=new Array(arguments.length-1);if(arguments.length>1)for(var n=1;n<arguments.length;n++)t[n-1]=arguments[n];p.push(new l(e,t)),1!==p.length||_||s(a)},l.prototype.run=function(){this.fun.apply(null,this.array)},h.title="browser",h.browser=!0,h.env={},h.argv=[],h.version="",h.versions={},h.on=u,h.addListener=u,h.once=u,h.off=u,h.removeListener=u,h.removeAllListeners=u,h.emit=u,h.prependListener=u,h.prependOnceListener=u,h.listeners=function(e){return[]},h.binding=function(e){throw new Error("process.binding is not supported")},h.cwd=function(){return"/"},h.chdir=function(e){throw new Error("process.chdir is not supported")},h.umask=function(){return 0}},{}],34:[function(e,t,n){"use strict";function r(e,t,n,r,i){var s=c.writeRtpDescription(e.kind,t);if(s+=c.writeIceParameters(e.iceGatherer.getLocalParameters()),s+=c.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===n?"actpass":i||"active"),s+="a=mid:"+e.mid+"\r\n",e.rtpSender&&e.rtpReceiver?s+="a=sendrecv\r\n":e.rtpSender?s+="a=sendonly\r\n":e.rtpReceiver?s+="a=recvonly\r\n":s+="a=inactive\r\n",e.rtpSender){var o="msid:"+r.id+" "+e.rtpSender.track.id+"\r\n";s+="a="+o,s+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" "+o,e.sendEncodingParameters[0].rtx&&(s+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" "+o,s+="a=ssrc-group:FID "+e.sendEncodingParameters[0].ssrc+" "+e.sendEncodingParameters[0].rtx.ssrc+"\r\n")}return s+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" cname:"+c.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(s+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+c.localCName+"\r\n"),s}function i(e,t){var n={codecs:[],headerExtensions:[],fecMechanisms:[]},r=function(e,t){e=parseInt(e,10);for(var n=0;n<t.length;n++)if(t[n].payloadType===e||t[n].preferredPayloadType===e)return t[n]},i=function(e,t,n,i){var s=r(e.parameters.apt,n),o=r(t.parameters.apt,i);return s&&o&&s.name.toLowerCase()===o.name.toLowerCase()};return e.codecs.forEach(function(r){for(var s=0;s<t.codecs.length;s++){var o=t.codecs[s];if(r.name.toLowerCase()===o.name.toLowerCase()&&r.clockRate===o.clockRate){if("rtx"===r.name.toLowerCase()&&r.parameters&&o.parameters.apt&&!i(r,o,e.codecs,t.codecs))continue;(o=JSON.parse(JSON.stringify(o))).numChannels=Math.min(r.numChannels,o.numChannels),n.codecs.push(o),o.rtcpFeedback=o.rtcpFeedback.filter(function(e){for(var t=0;t<r.rtcpFeedback.length;t++)if(r.rtcpFeedback[t].type===e.type&&r.rtcpFeedback[t].parameter===e.parameter)return!0;return!1});break}}}),e.headerExtensions.forEach(function(e){for(var r=0;r<t.headerExtensions.length;r++){var i=t.headerExtensions[r];if(e.uri===i.uri){n.headerExtensions.push(i);break}}}),n}function s(e,t,n){return-1!=={offer:{setLocalDescription:["stable","have-local-offer"],setRemoteDescription:["stable","have-remote-offer"]},answer:{setLocalDescription:["have-remote-offer","have-local-pranswer"],setRemoteDescription:["have-local-offer","have-remote-pranswer"]}}[t][e].indexOf(n)}function o(e,t){var n=e.getRemoteCandidates().find(function(e){return t.foundation===e.foundation&&t.ip===e.ip&&t.port===e.port&&t.priority===e.priority&&t.protocol===e.protocol&&t.type===e.type});return n||e.addRemoteCandidate(t),!n}function a(e,t){t.addTrack(e);var n=new Event("addtrack");n.track=e,t.dispatchEvent(n)}function l(e,t,n,r){var i=new Event("track");i.track=t,i.receiver=n,i.transceiver={receiver:n},i.streams=r,window.setTimeout(function(){e._dispatchEvent("track",i)})}function u(e,t){var n=new Error(t);return n.name=e,n}var c=e("sdp");t.exports=function(e,t){var n=function(n){var r=this,i=document.createDocumentFragment();if(["addEventListener","removeEventListener","dispatchEvent"].forEach(function(e){r[e]=i[e].bind(i)}),this.canTrickleIceCandidates=null,this.needNegotiation=!1,this.localStreams=[],this.remoteStreams=[],this.localDescription=null,this.remoteDescription=null,this.signalingState="stable",this.iceConnectionState="new",this.iceGatheringState="new",n=JSON.parse(JSON.stringify(n||{})),this.usingBundle="max-bundle"===n.bundlePolicy,"negotiate"===n.rtcpMuxPolicy)throw u("NotSupportedError","rtcpMuxPolicy 'negotiate' is not supported");switch(n.rtcpMuxPolicy||(n.rtcpMuxPolicy="require"),n.iceTransportPolicy){case"all":case"relay":break;default:n.iceTransportPolicy="all"}switch(n.bundlePolicy){case"balanced":case"max-compat":case"max-bundle":break;default:n.bundlePolicy="balanced"}if(n.iceServers=function(e,t){var n=!1;return(e=JSON.parse(JSON.stringify(e))).filter(function(e){if(e&&(e.urls||e.url)){var r=e.urls||e.url;e.url&&!e.urls&&console.warn("RTCIceServer.url is deprecated! Use urls instead.");var i="string"==typeof r;return i&&(r=[r]),r=r.filter(function(e){return 0!==e.indexOf("turn:")||-1===e.indexOf("transport=udp")||-1!==e.indexOf("turn:[")||n?0===e.indexOf("stun:")&&t>=14393&&-1===e.indexOf("?transport=udp"):(n=!0,!0)}),delete e.url,e.urls=i?r[0]:r,!!r.length}})}(n.iceServers||[],t),this._iceGatherers=[],n.iceCandidatePoolSize)for(var s=n.iceCandidatePoolSize;s>0;s--)this._iceGatherers=new e.RTCIceGatherer({iceServers:n.iceServers,gatherPolicy:n.iceTransportPolicy});else n.iceCandidatePoolSize=0;this._config=n,this.transceivers=[],this._sdpSessionId=c.generateSessionId(),this._sdpSessionVersion=0,this._dtlsRole=void 0,this._isClosed=!1};n.prototype.onicecandidate=null,n.prototype.onaddstream=null,n.prototype.ontrack=null,n.prototype.onremovestream=null,n.prototype.onsignalingstatechange=null,n.prototype.oniceconnectionstatechange=null,n.prototype.onicegatheringstatechange=null,n.prototype.onnegotiationneeded=null,n.prototype.ondatachannel=null,n.prototype._dispatchEvent=function(e,t){this._isClosed||(this.dispatchEvent(t),"function"==typeof this["on"+e]&&this["on"+e](t))},n.prototype._emitGatheringStateChange=function(){var e=new Event("icegatheringstatechange");this._dispatchEvent("icegatheringstatechange",e)},n.prototype.getConfiguration=function(){return this._config},n.prototype.getLocalStreams=function(){return this.localStreams},n.prototype.getRemoteStreams=function(){return this.remoteStreams},n.prototype._createTransceiver=function(e){var t=this.transceivers.length>0,n={track:null,iceGatherer:null,iceTransport:null,dtlsTransport:null,localCapabilities:null,remoteCapabilities:null,rtpSender:null,rtpReceiver:null,kind:e,mid:null,sendEncodingParameters:null,recvEncodingParameters:null,stream:null,associatedRemoteMediaStreams:[],wantReceive:!0};if(this.usingBundle&&t)n.iceTransport=this.transceivers[0].iceTransport,n.dtlsTransport=this.transceivers[0].dtlsTransport;else{var r=this._createIceAndDtlsTransports();n.iceTransport=r.iceTransport,n.dtlsTransport=r.dtlsTransport}return this.transceivers.push(n),n},n.prototype.addTrack=function(t,n){if(this.transceivers.find(function(e){return e.track===t}))throw u("InvalidAccessError","Track already exists.");if("closed"===this.signalingState)throw u("InvalidStateError","Attempted to call addTrack on a closed peerconnection.");for(var r,i=0;i<this.transceivers.length;i++)this.transceivers[i].track||this.transceivers[i].kind!==t.kind||(r=this.transceivers[i]);return r||(r=this._createTransceiver(t.kind)),this._maybeFireNegotiationNeeded(),-1===this.localStreams.indexOf(n)&&this.localStreams.push(n),r.track=t,r.stream=n,r.rtpSender=new e.RTCRtpSender(t,r.dtlsTransport),r.rtpSender},n.prototype.addStream=function(e){var n=this;if(t>=15025)e.getTracks().forEach(function(t){n.addTrack(t,e)});else{var r=e.clone();e.getTracks().forEach(function(e,t){var n=r.getTracks()[t];e.addEventListener("enabled",function(e){n.enabled=e.enabled})}),r.getTracks().forEach(function(e){n.addTrack(e,r)})}},n.prototype.removeTrack=function(t){if(!(t instanceof e.RTCRtpSender))throw new TypeError("Argument 1 of RTCPeerConnection.removeTrack does not implement interface RTCRtpSender.");var n=this.transceivers.find(function(e){return e.rtpSender===t});if(!n)throw u("InvalidAccessError","Sender was not created by this connection.");var r=n.stream;n.rtpSender.stop(),n.rtpSender=null,n.track=null,n.stream=null;-1===this.transceivers.map(function(e){return e.stream}).indexOf(r)&&this.localStreams.indexOf(r)>-1&&this.localStreams.splice(this.localStreams.indexOf(r),1),this._maybeFireNegotiationNeeded()},n.prototype.removeStream=function(e){var t=this;e.getTracks().forEach(function(e){var n=t.getSenders().find(function(t){return t.track===e});n&&t.removeTrack(n)})},n.prototype.getSenders=function(){return this.transceivers.filter(function(e){return!!e.rtpSender}).map(function(e){return e.rtpSender})},n.prototype.getReceivers=function(){return this.transceivers.filter(function(e){return!!e.rtpReceiver}).map(function(e){return e.rtpReceiver})},n.prototype._createIceGatherer=function(t,n){var r=this;if(n&&t>0)return this.transceivers[0].iceGatherer;if(this._iceGatherers.length)return this._iceGatherers.shift();var i=new e.RTCIceGatherer({iceServers:this._config.iceServers,gatherPolicy:this._config.iceTransportPolicy});return Object.defineProperty(i,"state",{value:"new",writable:!0}),this.transceivers[t].candidates=[],this.transceivers[t].bufferCandidates=function(e){var n=!e.candidate||0===Object.keys(e.candidate).length;i.state=n?"completed":"gathering",null!==r.transceivers[t].candidates&&r.transceivers[t].candidates.push(e.candidate)},i.addEventListener("localcandidate",this.transceivers[t].bufferCandidates),i},n.prototype._gather=function(t,n){var r=this,i=this.transceivers[n].iceGatherer;if(!i.onlocalcandidate){var s=this.transceivers[n].candidates;this.transceivers[n].candidates=null,i.removeEventListener("localcandidate",this.transceivers[n].bufferCandidates),i.onlocalcandidate=function(e){if(!(r.usingBundle&&n>0)){var s=new Event("icecandidate");s.candidate={sdpMid:t,sdpMLineIndex:n};var o=e.candidate,a=!o||0===Object.keys(o).length;a?"new"!==i.state&&"gathering"!==i.state||(i.state="completed"):("new"===i.state&&(i.state="gathering"),o.component=1,s.candidate.candidate=c.writeCandidate(o));var l=c.splitSections(r.localDescription.sdp);l[s.candidate.sdpMLineIndex+1]+=a?"a=end-of-candidates\r\n":"a="+s.candidate.candidate+"\r\n",r.localDescription.sdp=l.join("");var u=r.transceivers.every(function(e){return e.iceGatherer&&"completed"===e.iceGatherer.state});"gathering"!==r.iceGatheringState&&(r.iceGatheringState="gathering",r._emitGatheringStateChange()),a||r._dispatchEvent("icecandidate",s),u&&(r._dispatchEvent("icecandidate",new Event("icecandidate")),r.iceGatheringState="complete",r._emitGatheringStateChange())}},e.setTimeout(function(){s.forEach(function(e){var t=new Event("RTCIceGatherEvent");t.candidate=e,i.onlocalcandidate(t)})},0)}},n.prototype._createIceAndDtlsTransports=function(){var t=this,n=new e.RTCIceTransport(null);n.onicestatechange=function(){t._updateConnectionState()};var r=new e.RTCDtlsTransport(n);return r.ondtlsstatechange=function(){t._updateConnectionState()},r.onerror=function(){Object.defineProperty(r,"state",{value:"failed",writable:!0}),t._updateConnectionState()},{iceTransport:n,dtlsTransport:r}},n.prototype._disposeIceAndDtlsTransports=function(e){var t=this.transceivers[e].iceGatherer;t&&(delete t.onlocalcandidate,delete this.transceivers[e].iceGatherer);var n=this.transceivers[e].iceTransport;n&&(delete n.onicestatechange,delete this.transceivers[e].iceTransport);var r=this.transceivers[e].dtlsTransport;r&&(delete r.ondtlsstatechange,delete r.onerror,delete this.transceivers[e].dtlsTransport)},n.prototype._transceive=function(e,n,r){var s=i(e.localCapabilities,e.remoteCapabilities);n&&e.rtpSender&&(s.encodings=e.sendEncodingParameters,s.rtcp={cname:c.localCName,compound:e.rtcpParameters.compound},e.recvEncodingParameters.length&&(s.rtcp.ssrc=e.recvEncodingParameters[0].ssrc),e.rtpSender.send(s)),r&&e.rtpReceiver&&s.codecs.length>0&&("video"===e.kind&&e.recvEncodingParameters&&t<15019&&e.recvEncodingParameters.forEach(function(e){delete e.rtx}),e.recvEncodingParameters.length&&(s.encodings=e.recvEncodingParameters),s.rtcp={compound:e.rtcpParameters.compound},e.rtcpParameters.cname&&(s.rtcp.cname=e.rtcpParameters.cname),e.sendEncodingParameters.length&&(s.rtcp.ssrc=e.sendEncodingParameters[0].ssrc),e.rtpReceiver.receive(s))},n.prototype.setLocalDescription=function(e){var t=this;if(!s("setLocalDescription",e.type,this.signalingState)||this._isClosed)return Promise.reject(u("InvalidStateError","Can not set local "+e.type+" in state "+t.signalingState));var n,r;if("offer"===e.type)n=c.splitSections(e.sdp),r=n.shift(),n.forEach(function(e,n){var r=c.parseRtpParameters(e);t.transceivers[n].localCapabilities=r}),this.transceivers.forEach(function(e,n){t._gather(e.mid,n)});else if("answer"===e.type){n=c.splitSections(t.remoteDescription.sdp),r=n.shift();var o=c.matchPrefix(r,"a=ice-lite").length>0;n.forEach(function(e,n){var s=t.transceivers[n],a=s.iceGatherer,l=s.iceTransport,u=s.dtlsTransport,d=s.localCapabilities,h=s.remoteCapabilities;if(!(c.isRejected(e)&&0===c.matchPrefix(e,"a=bundle-only").length)&&!s.isDatachannel){var f=c.getIceParameters(e,r),p=c.getDtlsParameters(e,r);o&&(p.role="server"),t.usingBundle&&0!==n||(t._gather(s.mid,n),"new"===l.state&&l.start(a,f,o?"controlling":"controlled"),"new"===u.state&&u.start(p));var _=i(d,h);t._transceive(s,_.codecs.length>0,!1)}})}switch(this.localDescription={type:e.type,sdp:e.sdp},e.type){case"offer":this._updateSignalingState("have-local-offer");break;case"answer":this._updateSignalingState("stable");break;default:throw new TypeError('unsupported type "'+e.type+'"')}return Promise.resolve()},n.prototype.setRemoteDescription=function(n){var r=this;if(!s("setRemoteDescription",n.type,this.signalingState)||this._isClosed)return Promise.reject(u("InvalidStateError","Can not set remote "+n.type+" in state "+r.signalingState));var i={};this.remoteStreams.forEach(function(e){i[e.id]=e});var d=[],h=c.splitSections(n.sdp),f=h.shift(),p=c.matchPrefix(f,"a=ice-lite").length>0,_=c.matchPrefix(f,"a=group:BUNDLE ").length>0;this.usingBundle=_;var m=c.matchPrefix(f,"a=ice-options:")[0];switch(this.canTrickleIceCandidates=!!m&&m.substr(14).split(" ").indexOf("trickle")>=0,h.forEach(function(s,l){var u=c.splitLines(s),h=c.getKind(s),m=c.isRejected(s)&&0===c.matchPrefix(s,"a=bundle-only").length,v=u[0].substr(2).split(" ")[2],g=c.getDirection(s,f),y=c.parseMsid(s),T=c.getMid(s)||c.generateIdentifier();if("application"!==h||"DTLS/SCTP"!==v){var C,S,E,b,R,A,w,I,k,P,O,x=c.parseRtpParameters(s);m||(P=c.getIceParameters(s,f),(O=c.getDtlsParameters(s,f)).role="client"),w=c.parseRtpEncodingParameters(s);var N=c.parseRtcpParameters(s),D=c.matchPrefix(s,"a=end-of-candidates",f).length>0,U=c.matchPrefix(s,"a=candidate:").map(function(e){return c.parseCandidate(e)}).filter(function(e){return 1===e.component});if(("offer"===n.type||"answer"===n.type)&&!m&&_&&l>0&&r.transceivers[l]&&(r._disposeIceAndDtlsTransports(l),r.transceivers[l].iceGatherer=r.transceivers[0].iceGatherer,r.transceivers[l].iceTransport=r.transceivers[0].iceTransport,r.transceivers[l].dtlsTransport=r.transceivers[0].dtlsTransport,r.transceivers[l].rtpSender&&r.transceivers[l].rtpSender.setTransport(r.transceivers[0].dtlsTransport),r.transceivers[l].rtpReceiver&&r.transceivers[l].rtpReceiver.setTransport(r.transceivers[0].dtlsTransport)),"offer"!==n.type||m)"answer"!==n.type||m||(S=(C=r.transceivers[l]).iceGatherer,E=C.iceTransport,b=C.dtlsTransport,R=C.rtpReceiver,A=C.sendEncodingParameters,I=C.localCapabilities,r.transceivers[l].recvEncodingParameters=w,r.transceivers[l].remoteCapabilities=x,r.transceivers[l].rtcpParameters=N,U.length&&"new"===E.state&&(!p&&!D||_&&0!==l?U.forEach(function(e){o(C.iceTransport,e)}):E.setRemoteCandidates(U)),_&&0!==l||("new"===E.state&&E.start(S,P,"controlling"),"new"===b.state&&b.start(O)),r._transceive(C,"sendrecv"===g||"recvonly"===g,"sendrecv"===g||"sendonly"===g),!R||"sendrecv"!==g&&"sendonly"!==g?delete C.rtpReceiver:(k=R.track,y?(i[y.stream]||(i[y.stream]=new e.MediaStream),a(k,i[y.stream]),d.push([k,R,i[y.stream]])):(i.default||(i.default=new e.MediaStream),a(k,i.default),d.push([k,R,i.default]))));else{(C=r.transceivers[l]||r._createTransceiver(h)).mid=T,C.iceGatherer||(C.iceGatherer=r._createIceGatherer(l,_)),U.length&&"new"===C.iceTransport.state&&(!D||_&&0!==l?U.forEach(function(e){o(C.iceTransport,e)}):C.iceTransport.setRemoteCandidates(U)),I=e.RTCRtpReceiver.getCapabilities(h),t<15019&&(I.codecs=I.codecs.filter(function(e){return"rtx"!==e.name})),A=C.sendEncodingParameters||[{ssrc:1001*(2*l+2)}];var M=!1;if("sendrecv"===g||"sendonly"===g){if(M=!C.rtpReceiver,R=C.rtpReceiver||new e.RTCRtpReceiver(C.dtlsTransport,h),M){var L;k=R.track,y&&"-"===y.stream||(y?(i[y.stream]||(i[y.stream]=new e.MediaStream,Object.defineProperty(i[y.stream],"id",{get:function(){return y.stream}})),Object.defineProperty(k,"id",{get:function(){return y.track}}),L=i[y.stream]):(i.default||(i.default=new e.MediaStream),L=i.default)),L&&(a(k,L),C.associatedRemoteMediaStreams.push(L)),d.push([k,R,L])}}else C.rtpReceiver&&C.rtpReceiver.track&&(C.associatedRemoteMediaStreams.forEach(function(e){var t=e.getTracks().find(function(e){return e.id===C.rtpReceiver.track.id});t&&function(e,t){t.removeTrack(e);var n=new Event("removetrack");n.track=e,t.dispatchEvent(n)}(t,e)}),C.associatedRemoteMediaStreams=[]);C.localCapabilities=I,C.remoteCapabilities=x,C.rtpReceiver=R,C.rtcpParameters=N,C.sendEncodingParameters=A,C.recvEncodingParameters=w,r._transceive(r.transceivers[l],!1,M)}}else r.transceivers[l]={mid:T,isDatachannel:!0}}),void 0===this._dtlsRole&&(this._dtlsRole="offer"===n.type?"active":"passive"),this.remoteDescription={type:n.type,sdp:n.sdp},n.type){case"offer":this._updateSignalingState("have-remote-offer");break;case"answer":this._updateSignalingState("stable");break;default:throw new TypeError('unsupported type "'+n.type+'"')}return Object.keys(i).forEach(function(t){var n=i[t];if(n.getTracks().length){if(-1===r.remoteStreams.indexOf(n)){r.remoteStreams.push(n);var s=new Event("addstream");s.stream=n,e.setTimeout(function(){r._dispatchEvent("addstream",s)})}d.forEach(function(e){var t=e[0],i=e[1];n.id===e[2].id&&l(r,t,i,[n])})}}),d.forEach(function(e){e[2]||l(r,e[0],e[1],[])}),e.setTimeout(function(){r&&r.transceivers&&r.transceivers.forEach(function(e){e.iceTransport&&"new"===e.iceTransport.state&&e.iceTransport.getRemoteCandidates().length>0&&(console.warn("Timeout for addRemoteCandidate. Consider sending an end-of-candidates notification"),e.iceTransport.addRemoteCandidate({}))})},4e3),Promise.resolve()},n.prototype.close=function(){this.transceivers.forEach(function(e){e.iceTransport&&e.iceTransport.stop(),e.dtlsTransport&&e.dtlsTransport.stop(),e.rtpSender&&e.rtpSender.stop(),e.rtpReceiver&&e.rtpReceiver.stop()}),this._isClosed=!0,this._updateSignalingState("closed")},n.prototype._updateSignalingState=function(e){this.signalingState=e;var t=new Event("signalingstatechange");this._dispatchEvent("signalingstatechange",t)},n.prototype._maybeFireNegotiationNeeded=function(){var t=this;"stable"===this.signalingState&&!0!==this.needNegotiation&&(this.needNegotiation=!0,e.setTimeout(function(){if(!1!==t.needNegotiation){t.needNegotiation=!1;var e=new Event("negotiationneeded");t._dispatchEvent("negotiationneeded",e)}},0))},n.prototype._updateConnectionState=function(){var e,t={new:0,closed:0,connecting:0,checking:0,connected:0,completed:0,disconnected:0,failed:0};if(this.transceivers.forEach(function(e){t[e.iceTransport.state]++,t[e.dtlsTransport.state]++}),t.connected+=t.completed,e="new",t.failed>0?e="failed":t.connecting>0||t.checking>0?e="connecting":t.disconnected>0?e="disconnected":t.new>0?e="new":(t.connected>0||t.completed>0)&&(e="connected"),e!==this.iceConnectionState){this.iceConnectionState=e;var n=new Event("iceconnectionstatechange");this._dispatchEvent("iceconnectionstatechange",n)}},n.prototype.createOffer=function(){var n=this;if(this._isClosed)return Promise.reject(u("InvalidStateError","Can not call createOffer after close"));var i=this.transceivers.filter(function(e){return"audio"===e.kind}).length,s=this.transceivers.filter(function(e){return"video"===e.kind}).length,o=arguments[0];if(o){if(o.mandatory||o.optional)throw new TypeError("Legacy mandatory/optional constraints not supported.");void 0!==o.offerToReceiveAudio&&(i=!0===o.offerToReceiveAudio?1:!1===o.offerToReceiveAudio?0:o.offerToReceiveAudio),void 0!==o.offerToReceiveVideo&&(s=!0===o.offerToReceiveVideo?1:!1===o.offerToReceiveVideo?0:o.offerToReceiveVideo)}for(this.transceivers.forEach(function(e){"audio"===e.kind?--i<0&&(e.wantReceive=!1):"video"===e.kind&&--s<0&&(e.wantReceive=!1)});i>0||s>0;)i>0&&(this._createTransceiver("audio"),i--),s>0&&(this._createTransceiver("video"),s--);var a=c.writeSessionBoilerplate(this._sdpSessionId,this._sdpSessionVersion++);this.transceivers.forEach(function(r,i){var s=r.track,o=r.kind,a=c.generateIdentifier();r.mid=a,r.iceGatherer||(r.iceGatherer=n._createIceGatherer(i,n.usingBundle));var l=e.RTCRtpSender.getCapabilities(o);t<15019&&(l.codecs=l.codecs.filter(function(e){return"rtx"!==e.name})),l.codecs.forEach(function(e){"H264"===e.name&&void 0===e.parameters["level-asymmetry-allowed"]&&(e.parameters["level-asymmetry-allowed"]="1")});var u=r.sendEncodingParameters||[{ssrc:1001*(2*i+1)}];s&&t>=15019&&"video"===o&&!u[0].rtx&&(u[0].rtx={ssrc:u[0].ssrc+1}),r.wantReceive&&(r.rtpReceiver=new e.RTCRtpReceiver(r.dtlsTransport,o)),r.localCapabilities=l,r.sendEncodingParameters=u}),"max-compat"!==this._config.bundlePolicy&&(a+="a=group:BUNDLE "+this.transceivers.map(function(e){return e.mid}).join(" ")+"\r\n"),a+="a=ice-options:trickle\r\n",this.transceivers.forEach(function(e,t){a+=r(e,e.localCapabilities,"offer",e.stream,n._dtlsRole),a+="a=rtcp-rsize\r\n",!e.iceGatherer||"new"===n.iceGatheringState||0!==t&&n.usingBundle||(e.iceGatherer.getLocalCandidates().forEach(function(e){e.component=1,a+="a="+c.writeCandidate(e)+"\r\n"}),"completed"===e.iceGatherer.state&&(a+="a=end-of-candidates\r\n"))});var l=new e.RTCSessionDescription({type:"offer",sdp:a});return Promise.resolve(l)},n.prototype.createAnswer=function(){var n=this;if(this._isClosed)return Promise.reject(u("InvalidStateError","Can not call createAnswer after close"));var s=c.writeSessionBoilerplate(this._sdpSessionId,this._sdpSessionVersion++);this.usingBundle&&(s+="a=group:BUNDLE "+this.transceivers.map(function(e){return e.mid}).join(" ")+"\r\n");var o=c.splitSections(this.remoteDescription.sdp).length-1;this.transceivers.forEach(function(e,a){if(!(a+1>o))if(e.isDatachannel)s+="m=application 0 DTLS/SCTP 5000\r\nc=IN IP4 0.0.0.0\r\na=mid:"+e.mid+"\r\n";else{if(e.stream){var l;"audio"===e.kind?l=e.stream.getAudioTracks()[0]:"video"===e.kind&&(l=e.stream.getVideoTracks()[0]),l&&t>=15019&&"video"===e.kind&&!e.sendEncodingParameters[0].rtx&&(e.sendEncodingParameters[0].rtx={ssrc:e.sendEncodingParameters[0].ssrc+1})}var u=i(e.localCapabilities,e.remoteCapabilities);!u.codecs.filter(function(e){return"rtx"===e.name.toLowerCase()}).length&&e.sendEncodingParameters[0].rtx&&delete e.sendEncodingParameters[0].rtx,s+=r(e,u,"answer",e.stream,n._dtlsRole),e.rtcpParameters&&e.rtcpParameters.reducedSize&&(s+="a=rtcp-rsize\r\n")}});var a=new e.RTCSessionDescription({type:"answer",sdp:s});return Promise.resolve(a)},n.prototype.addIceCandidate=function(e){var t;if(e&&""!==e.candidate){if(void 0===e.sdpMLineIndex&&!e.sdpMid)throw new TypeError("sdpMLineIndex or sdpMid required");if(!this.remoteDescription)return Promise.reject(u("InvalidStateError","Can not add ICE candidate without a remote description"));var n=e.sdpMLineIndex;if(e.sdpMid)for(var r=0;r<this.transceivers.length;r++)if(this.transceivers[r].mid===e.sdpMid){n=r;break}var i=this.transceivers[n];if(!i)return Promise.reject(u("OperationError","Can not add ICE candidate"));if(i.isDatachannel)return Promise.resolve();var s=Object.keys(e.candidate).length>0?c.parseCandidate(e.candidate):{};if("tcp"===s.protocol&&(0===s.port||9===s.port))return Promise.resolve();if(s.component&&1!==s.component)return Promise.resolve();if((0===n||n>0&&i.iceTransport!==this.transceivers[0].iceTransport)&&!o(i.iceTransport,s))return Promise.reject(u("OperationError","Can not add ICE candidate"));var a=e.candidate.trim();0===a.indexOf("a=")&&(a=a.substr(2)),(t=c.splitSections(this.remoteDescription.sdp))[n+1]+="a="+(s.type?a:"end-of-candidates")+"\r\n",this.remoteDescription.sdp=t.join("")}else for(var l=0;l<this.transceivers.length&&(this.transceivers[l].isDatachannel||(this.transceivers[l].iceTransport.addRemoteCandidate({}),t=c.splitSections(this.remoteDescription.sdp),t[l+1]+="a=end-of-candidates\r\n",this.remoteDescription.sdp=t.join(""),!this.usingBundle));l++);return Promise.resolve()},n.prototype.getStats=function(){var e=[];this.transceivers.forEach(function(t){["rtpSender","rtpReceiver","iceGatherer","iceTransport","dtlsTransport"].forEach(function(n){t[n]&&e.push(t[n].getStats())})});return new Promise(function(t){var n=new Map;Promise.all(e).then(function(e){e.forEach(function(e){Object.keys(e).forEach(function(t){e[t].type=function(e){return{inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[e.type]||e.type}(e[t]),n.set(t,e[t])})}),t(n)})})};var d=["createOffer","createAnswer"];return d.forEach(function(e){var t=n.prototype[e];n.prototype[e]=function(){var e=arguments;return"function"==typeof e[0]||"function"==typeof e[1]?t.apply(this,[arguments[2]]).then(function(t){"function"==typeof e[0]&&e[0].apply(null,[t])},function(t){"function"==typeof e[1]&&e[1].apply(null,[t])}):t.apply(this,arguments)}}),(d=["setLocalDescription","setRemoteDescription","addIceCandidate"]).forEach(function(e){var t=n.prototype[e];n.prototype[e]=function(){var e=arguments;return"function"==typeof e[1]||"function"==typeof e[2]?t.apply(this,arguments).then(function(){"function"==typeof e[1]&&e[1].apply(null)},function(t){"function"==typeof e[2]&&e[2].apply(null,[t])}):t.apply(this,arguments)}}),["getStats"].forEach(function(e){var t=n.prototype[e];n.prototype[e]=function(){var e=arguments;return"function"==typeof e[1]?t.apply(this,arguments).then(function(){"function"==typeof e[1]&&e[1].apply(null)}):t.apply(this,arguments)}}),n}},{sdp:39}],35:[function(e,t,n){var r=t.exports={v:[{name:"version",reg:/^(\d*)$/}],o:[{name:"origin",reg:/^(\S*) (\d*) (\d*) (\S*) IP(\d) (\S*)/,names:["username","sessionId","sessionVersion","netType","ipVer","address"],format:"%s %s %d %s IP%d %s"}],s:[{name:"name"}],i:[{name:"description"}],u:[{name:"uri"}],e:[{name:"email"}],p:[{name:"phone"}],z:[{name:"timezones"}],r:[{name:"repeats"}],t:[{name:"timing",reg:/^(\d*) (\d*)/,names:["start","stop"],format:"%d %d"}],c:[{name:"connection",reg:/^IN IP(\d) (\S*)/,names:["version","ip"],format:"IN IP%d %s"}],b:[{push:"bandwidth",reg:/^(TIAS|AS|CT|RR|RS):(\d*)/,names:["type","limit"],format:"%s:%s"}],m:[{reg:/^(\w*) (\d*) ([\w\/]*)(?: (.*))?/,names:["type","port","protocol","payloads"],format:"%s %d %s %s"}],a:[{push:"rtp",reg:/^rtpmap:(\d*) ([\w\-\.]*)(?:\s*\/(\d*)(?:\s*\/(\S*))?)?/,names:["payload","codec","rate","encoding"],format:function(e){return e.encoding?"rtpmap:%d %s/%s/%s":e.rate?"rtpmap:%d %s/%s":"rtpmap:%d %s"}},{push:"fmtp",reg:/^fmtp:(\d*) ([\S| ]*)/,names:["payload","config"],format:"fmtp:%d %s"},{name:"control",reg:/^control:(.*)/,format:"control:%s"},{name:"rtcp",reg:/^rtcp:(\d*)(?: (\S*) IP(\d) (\S*))?/,names:["port","netType","ipVer","address"],format:function(e){return null!=e.address?"rtcp:%d %s IP%d %s":"rtcp:%d"}},{push:"rtcpFbTrrInt",reg:/^rtcp-fb:(\*|\d*) trr-int (\d*)/,names:["payload","value"],format:"rtcp-fb:%d trr-int %d"},{push:"rtcpFb",reg:/^rtcp-fb:(\*|\d*) ([\w-_]*)(?: ([\w-_]*))?/,names:["payload","type","subtype"],format:function(e){return null!=e.subtype?"rtcp-fb:%s %s %s":"rtcp-fb:%s %s"}},{push:"ext",reg:/^extmap:(\d+)(?:\/(\w+))? (\S*)(?: (\S*))?/,names:["value","direction","uri","config"],format:function(e){return"extmap:%d"+(e.direction?"/%s":"%v")+" %s"+(e.config?" %s":"")}},{push:"crypto",reg:/^crypto:(\d*) ([\w_]*) (\S*)(?: (\S*))?/,names:["id","suite","config","sessionConfig"],format:function(e){return null!=e.sessionConfig?"crypto:%d %s %s %s":"crypto:%d %s %s"}},{name:"setup",reg:/^setup:(\w*)/,format:"setup:%s"},{name:"mid",reg:/^mid:([^\s]*)/,format:"mid:%s"},{name:"msid",reg:/^msid:(.*)/,format:"msid:%s"},{name:"ptime",reg:/^ptime:(\d*)/,format:"ptime:%d"},{name:"maxptime",reg:/^maxptime:(\d*)/,format:"maxptime:%d"},{name:"direction",reg:/^(sendrecv|recvonly|sendonly|inactive)/},{name:"icelite",reg:/^(ice-lite)/},{name:"iceUfrag",reg:/^ice-ufrag:(\S*)/,format:"ice-ufrag:%s"},{name:"icePwd",reg:/^ice-pwd:(\S*)/,format:"ice-pwd:%s"},{name:"fingerprint",reg:/^fingerprint:(\S*) (\S*)/,names:["type","hash"],format:"fingerprint:%s %s"},{push:"candidates",reg:/^candidate:(\S*) (\d*) (\S*) (\d*) (\S*) (\d*) typ (\S*)(?: raddr (\S*) rport (\d*))?(?: tcptype (\S*))?(?: generation (\d*))?(?: network-id (\d*))?(?: network-cost (\d*))?/,names:["foundation","component","transport","priority","ip","port","type","raddr","rport","tcptype","generation","network-id","network-cost"],format:function(e){var t="candidate:%s %d %s %d %s %d typ %s";return t+=null!=e.raddr?" raddr %s rport %d":"%v%v",t+=null!=e.tcptype?" tcptype %s":"%v",null!=e.generation&&(t+=" generation %d"),t+=null!=e["network-id"]?" network-id %d":"%v",t+=null!=e["network-cost"]?" network-cost %d":"%v"}},{name:"endOfCandidates",reg:/^(end-of-candidates)/},{name:"remoteCandidates",reg:/^remote-candidates:(.*)/,format:"remote-candidates:%s"},{name:"iceOptions",reg:/^ice-options:(\S*)/,format:"ice-options:%s"},{push:"ssrcs",reg:/^ssrc:(\d*) ([\w_]*)(?::(.*))?/,names:["id","attribute","value"],format:function(e){var t="ssrc:%d";return null!=e.attribute&&(t+=" %s",null!=e.value&&(t+=":%s")),t}},{push:"ssrcGroups",reg:/^ssrc-group:([\x21\x23\x24\x25\x26\x27\x2A\x2B\x2D\x2E\w]*) (.*)/,names:["semantics","ssrcs"],format:"ssrc-group:%s %s"},{name:"msidSemantic",reg:/^msid-semantic:\s?(\w*) (\S*)/,names:["semantic","token"],format:"msid-semantic: %s %s"},{push:"groups",reg:/^group:(\w*) (.*)/,names:["type","mids"],format:"group:%s %s"},{name:"rtcpMux",reg:/^(rtcp-mux)/},{name:"rtcpRsize",reg:/^(rtcp-rsize)/},{name:"sctpmap",reg:/^sctpmap:([\w_\/]*) (\S*)(?: (\S*))?/,names:["sctpmapNumber","app","maxMessageSize"],format:function(e){return null!=e.maxMessageSize?"sctpmap:%s %s %s":"sctpmap:%s %s"}},{name:"xGoogleFlag",reg:/^x-google-flag:([^\s]*)/,format:"x-google-flag:%s"},{push:"rids",reg:/^rid:([\d\w]+) (\w+)(?: ([\S| ]*))?/,names:["id","direction","params"],format:function(e){return e.params?"rid:%s %s %s":"rid:%s %s"}},{push:"imageattrs",reg:new RegExp("^imageattr:(\\d+|\\*)[\\s\\t]+(send|recv)[\\s\\t]+(\\*|\\[\\S+\\](?:[\\s\\t]+\\[\\S+\\])*)(?:[\\s\\t]+(recv|send)[\\s\\t]+(\\*|\\[\\S+\\](?:[\\s\\t]+\\[\\S+\\])*))?"),names:["pt","dir1","attrs1","dir2","attrs2"],format:function(e){return"imageattr:%s %s %s"+(e.dir2?" %s %s":"")}},{name:"simulcast",reg:new RegExp("^simulcast:(send|recv) ([a-zA-Z0-9\\-_~;,]+)(?:\\s?(send|recv) ([a-zA-Z0-9\\-_~;,]+))?$"),names:["dir1","list1","dir2","list2"],format:function(e){return"simulcast:%s %s"+(e.dir2?" %s %s":"")}},{name:"simulcast_03",reg:/^simulcast:[\s\t]+([\S+\s\t]+)$/,names:["value"],format:"simulcast: %s"},{name:"framerate",reg:/^framerate:(\d+(?:$|\.\d+))/,format:"framerate:%s"},{push:"invalid",names:["value"]}]};Object.keys(r).forEach(function(e){r[e].forEach(function(e){e.reg||(e.reg=/(.*)/),e.format||(e.format="%s")})})},{}],36:[function(e,t,n){var r=e("./parser"),i=e("./writer");n.write=i,n.parse=r.parse,n.parseFmtpConfig=r.parseFmtpConfig,n.parseParams=r.parseParams,n.parsePayloads=r.parsePayloads,n.parseRemoteCandidates=r.parseRemoteCandidates,n.parseImageAttributes=r.parseImageAttributes,n.parseSimulcastStreamList=r.parseSimulcastStreamList},{"./parser":37,"./writer":38}],37:[function(e,t,n){var r=function(e){return String(Number(e))===e?Number(e):e},i=function(e,t,n){var i=e.name&&e.names;e.push&&!t[e.push]?t[e.push]=[]:i&&!t[e.name]&&(t[e.name]={});var s=e.push?{}:i?t[e.name]:t;!function(e,t,n,i){if(i&&!n)t[i]=r(e[1]);else for(var s=0;s<n.length;s+=1)null!=e[s+1]&&(t[n[s]]=r(e[s+1]))}(n.match(e.reg),s,e.names,e.name),e.push&&t[e.push].push(s)},s=e("./grammar"),o=RegExp.prototype.test.bind(/^([a-z])=(.*)/);n.parse=function(e){var t={},n=[],r=t;return e.split(/(\r\n|\r|\n)/).filter(o).forEach(function(e){var t=e[0],o=e.slice(2);"m"===t&&(n.push({rtp:[],fmtp:[]}),r=n[n.length-1]);for(var a=0;a<(s[t]||[]).length;a+=1){var l=s[t][a];if(l.reg.test(o))return i(l,r,o)}}),t.media=n,t};var a=function(e,t){var n=t.split(/=(.+)/,2);return 2===n.length&&(e[n[0]]=r(n[1])),e};n.parseParams=function(e){return e.split(/\;\s?/).reduce(a,{})},n.parseFmtpConfig=n.parseParams,n.parsePayloads=function(e){return e.split(" ").map(Number)},n.parseRemoteCandidates=function(e){for(var t=[],n=e.split(" ").map(r),i=0;i<n.length;i+=3)t.push({component:n[i],ip:n[i+1],port:n[i+2]});return t},n.parseImageAttributes=function(e){return e.split(" ").map(function(e){return e.substring(1,e.length-1).split(",").reduce(a,{})})},n.parseSimulcastStreamList=function(e){return e.split(";").map(function(e){return e.split(",").map(function(e){var t,n=!1;return"~"!==e[0]?t=r(e):(t=r(e.substring(1,e.length)),n=!0),{scid:t,paused:n}})})}},{"./grammar":35}],38:[function(e,t,n){var r=e("./grammar"),i=/%[sdv%]/g,s=function(e,t,n){var r=[e+"="+(t.format instanceof Function?t.format(t.push?n:n[t.name]):t.format)];if(t.names)for(var s=0;s<t.names.length;s+=1){var o=t.names[s];t.name?r.push(n[t.name][o]):r.push(n[t.names[s]])}else r.push(n[t.name]);return function(e){var t=1,n=arguments,r=n.length;return e.replace(i,function(e){if(t>=r)return e;var i=n[t];switch(t+=1,e){case"%%":return"%";case"%s":return String(i);case"%d":return Number(i);case"%v":return""}})}.apply(null,r)},o=["v","o","s","i","u","e","p","c","b","t","r","z","a"],a=["i","c","b","a"];t.exports=function(e,t){t=t||{},null==e.version&&(e.version=0),null==e.name&&(e.name=" "),e.media.forEach(function(e){null==e.payloads&&(e.payloads="")});var n=t.outerOrder||o,i=t.innerOrder||a,l=[];return n.forEach(function(t){r[t].forEach(function(n){n.name in e&&null!=e[n.name]?l.push(s(t,n,e)):n.push in e&&null!=e[n.push]&&e[n.push].forEach(function(e){l.push(s(t,n,e))})})}),e.media.forEach(function(e){l.push(s("m",r.m[0],e)),i.forEach(function(t){r[t].forEach(function(n){n.name in e&&null!=e[n.name]?l.push(s(t,n,e)):n.push in e&&null!=e[n.push]&&e[n.push].forEach(function(e){l.push(s(t,n,e))})})})}),l.join("\r\n")+"\r\n"}},{"./grammar":35}],39:[function(e,t,n){"use strict";var r={};r.generateIdentifier=function(){return Math.random().toString(36).substr(2,10)},r.localCName=r.generateIdentifier(),r.splitLines=function(e){return e.trim().split("\n").map(function(e){return e.trim()})},r.splitSections=function(e){return e.split("\nm=").map(function(e,t){return(t>0?"m="+e:e).trim()+"\r\n"})},r.matchPrefix=function(e,t){return r.splitLines(e).filter(function(e){return 0===e.indexOf(t)})},r.parseCandidate=function(e){for(var t,n={foundation:(t=0===e.indexOf("a=candidate:")?e.substring(12).split(" "):e.substring(10).split(" "))[0],component:parseInt(t[1],10),protocol:t[2].toLowerCase(),priority:parseInt(t[3],10),ip:t[4],port:parseInt(t[5],10),type:t[7]},r=8;r<t.length;r+=2)switch(t[r]){case"raddr":n.relatedAddress=t[r+1];break;case"rport":n.relatedPort=parseInt(t[r+1],10);break;case"tcptype":n.tcpType=t[r+1];break;case"ufrag":n.ufrag=t[r+1],n.usernameFragment=t[r+1];break;default:n[t[r]]=t[r+1]}return n},r.writeCandidate=function(e){var t=[];t.push(e.foundation),t.push(e.component),t.push(e.protocol.toUpperCase()),t.push(e.priority),t.push(e.ip),t.push(e.port);var n=e.type;return t.push("typ"),t.push(n),"host"!==n&&e.relatedAddress&&e.relatedPort&&(t.push("raddr"),t.push(e.relatedAddress),t.push("rport"),t.push(e.relatedPort)),e.tcpType&&"tcp"===e.protocol.toLowerCase()&&(t.push("tcptype"),t.push(e.tcpType)),e.ufrag&&(t.push("ufrag"),t.push(e.ufrag)),"candidate:"+t.join(" ")},r.parseIceOptions=function(e){return e.substr(14).split(" ")},r.parseRtpMap=function(e){var t=e.substr(9).split(" "),n={payloadType:parseInt(t.shift(),10)};return t=t[0].split("/"),n.name=t[0],n.clockRate=parseInt(t[1],10),n.numChannels=3===t.length?parseInt(t[2],10):1,n},r.writeRtpMap=function(e){var t=e.payloadType;return void 0!==e.preferredPayloadType&&(t=e.preferredPayloadType),"a=rtpmap:"+t+" "+e.name+"/"+e.clockRate+(1!==e.numChannels?"/"+e.numChannels:"")+"\r\n"},r.parseExtmap=function(e){var t=e.substr(9).split(" ");return{id:parseInt(t[0],10),direction:t[0].indexOf("/")>0?t[0].split("/")[1]:"sendrecv",uri:t[1]}},r.writeExtmap=function(e){return"a=extmap:"+(e.id||e.preferredId)+(e.direction&&"sendrecv"!==e.direction?"/"+e.direction:"")+" "+e.uri+"\r\n"},r.parseFmtp=function(e){for(var t,n={},r=e.substr(e.indexOf(" ")+1).split(";"),i=0;i<r.length;i++)n[(t=r[i].trim().split("="))[0].trim()]=t[1];return n},r.writeFmtp=function(e){var t="",n=e.payloadType;if(void 0!==e.preferredPayloadType&&(n=e.preferredPayloadType),e.parameters&&Object.keys(e.parameters).length){var r=[];Object.keys(e.parameters).forEach(function(t){r.push(t+"="+e.parameters[t])}),t+="a=fmtp:"+n+" "+r.join(";")+"\r\n"}return t},r.parseRtcpFb=function(e){var t=e.substr(e.indexOf(" ")+1).split(" ");return{type:t.shift(),parameter:t.join(" ")}},r.writeRtcpFb=function(e){var t="",n=e.payloadType;return void 0!==e.preferredPayloadType&&(n=e.preferredPayloadType),e.rtcpFeedback&&e.rtcpFeedback.length&&e.rtcpFeedback.forEach(function(e){t+="a=rtcp-fb:"+n+" "+e.type+(e.parameter&&e.parameter.length?" "+e.parameter:"")+"\r\n"}),t},r.parseSsrcMedia=function(e){var t=e.indexOf(" "),n={ssrc:parseInt(e.substr(7,t-7),10)},r=e.indexOf(":",t);return r>-1?(n.attribute=e.substr(t+1,r-t-1),n.value=e.substr(r+1)):n.attribute=e.substr(t+1),n},r.getMid=function(e){var t=r.matchPrefix(e,"a=mid:")[0];if(t)return t.substr(6)},r.parseFingerprint=function(e){var t=e.substr(14).split(" ");return{algorithm:t[0].toLowerCase(),value:t[1]}},r.getDtlsParameters=function(e,t){return{role:"auto",fingerprints:r.matchPrefix(e+t,"a=fingerprint:").map(r.parseFingerprint)}},r.writeDtlsParameters=function(e,t){var n="a=setup:"+t+"\r\n";return e.fingerprints.forEach(function(e){n+="a=fingerprint:"+e.algorithm+" "+e.value+"\r\n"}),n},r.getIceParameters=function(e,t){var n=r.splitLines(e);return{usernameFragment:(n=n.concat(r.splitLines(t))).filter(function(e){return 0===e.indexOf("a=ice-ufrag:")})[0].substr(12),password:n.filter(function(e){return 0===e.indexOf("a=ice-pwd:")})[0].substr(10)}},r.writeIceParameters=function(e){return"a=ice-ufrag:"+e.usernameFragment+"\r\na=ice-pwd:"+e.password+"\r\n"},r.parseRtpParameters=function(e){for(var t={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]},n=r.splitLines(e)[0].split(" "),i=3;i<n.length;i++){var s=n[i],o=r.matchPrefix(e,"a=rtpmap:"+s+" ")[0];if(o){var a=r.parseRtpMap(o),l=r.matchPrefix(e,"a=fmtp:"+s+" ");switch(a.parameters=l.length?r.parseFmtp(l[0]):{},a.rtcpFeedback=r.matchPrefix(e,"a=rtcp-fb:"+s+" ").map(r.parseRtcpFb),t.codecs.push(a),a.name.toUpperCase()){case"RED":case"ULPFEC":t.fecMechanisms.push(a.name.toUpperCase())}}}return r.matchPrefix(e,"a=extmap:").forEach(function(e){t.headerExtensions.push(r.parseExtmap(e))}),t},r.writeRtpDescription=function(e,t){var n="";n+="m="+e+" ",n+=t.codecs.length>0?"9":"0",n+=" UDP/TLS/RTP/SAVPF ",n+=t.codecs.map(function(e){return void 0!==e.preferredPayloadType?e.preferredPayloadType:e.payloadType}).join(" ")+"\r\n",n+="c=IN IP4 0.0.0.0\r\n",n+="a=rtcp:9 IN IP4 0.0.0.0\r\n",t.codecs.forEach(function(e){n+=r.writeRtpMap(e),n+=r.writeFmtp(e),n+=r.writeRtcpFb(e)});var i=0;return t.codecs.forEach(function(e){e.maxptime>i&&(i=e.maxptime)}),i>0&&(n+="a=maxptime:"+i+"\r\n"),n+="a=rtcp-mux\r\n",t.headerExtensions.forEach(function(e){n+=r.writeExtmap(e)}),n},r.parseRtpEncodingParameters=function(e){var t,n=[],i=r.parseRtpParameters(e),s=-1!==i.fecMechanisms.indexOf("RED"),o=-1!==i.fecMechanisms.indexOf("ULPFEC"),a=r.matchPrefix(e,"a=ssrc:").map(function(e){return r.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute}),l=a.length>0&&a[0].ssrc,u=r.matchPrefix(e,"a=ssrc-group:FID").map(function(e){var t=e.split(" ");return t.shift(),t.map(function(e){return parseInt(e,10)})});u.length>0&&u[0].length>1&&u[0][0]===l&&(t=u[0][1]),i.codecs.forEach(function(e){if("RTX"===e.name.toUpperCase()&&e.parameters.apt){var r={ssrc:l,codecPayloadType:parseInt(e.parameters.apt,10),rtx:{ssrc:t}};n.push(r),s&&((r=JSON.parse(JSON.stringify(r))).fec={ssrc:t,mechanism:o?"red+ulpfec":"red"},n.push(r))}}),0===n.length&&l&&n.push({ssrc:l});var c=r.matchPrefix(e,"b=");return c.length&&(c=0===c[0].indexOf("b=TIAS:")?parseInt(c[0].substr(7),10):0===c[0].indexOf("b=AS:")?1e3*parseInt(c[0].substr(5),10)*.95-16e3:void 0,n.forEach(function(e){e.maxBitrate=c})),n},r.parseRtcpParameters=function(e){var t={},n=r.matchPrefix(e,"a=ssrc:").map(function(e){return r.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute})[0];n&&(t.cname=n.value,t.ssrc=n.ssrc);var i=r.matchPrefix(e,"a=rtcp-rsize");t.reducedSize=i.length>0,t.compound=0===i.length;var s=r.matchPrefix(e,"a=rtcp-mux");return t.mux=s.length>0,t},r.parseMsid=function(e){var t,n=r.matchPrefix(e,"a=msid:");if(1===n.length)return t=n[0].substr(7).split(" "),{stream:t[0],track:t[1]};var i=r.matchPrefix(e,"a=ssrc:").map(function(e){return r.parseSsrcMedia(e)}).filter(function(e){return"msid"===e.attribute});return i.length>0?(t=i[0].value.split(" "),{stream:t[0],track:t[1]}):void 0},r.generateSessionId=function(){return Math.random().toString().substr(2,21)},r.writeSessionBoilerplate=function(e,t){var n=void 0!==t?t:2;return"v=0\r\no=thisisadapterortc "+(e||r.generateSessionId())+" "+n+" IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\n"},r.writeMediaSection=function(e,t,n,i){var s=r.writeRtpDescription(e.kind,t);if(s+=r.writeIceParameters(e.iceGatherer.getLocalParameters()),s+=r.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===n?"actpass":"active"),s+="a=mid:"+e.mid+"\r\n",e.direction?s+="a="+e.direction+"\r\n":e.rtpSender&&e.rtpReceiver?s+="a=sendrecv\r\n":e.rtpSender?s+="a=sendonly\r\n":e.rtpReceiver?s+="a=recvonly\r\n":s+="a=inactive\r\n",e.rtpSender){var o="msid:"+i.id+" "+e.rtpSender.track.id+"\r\n";s+="a="+o,s+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" "+o,e.sendEncodingParameters[0].rtx&&(s+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" "+o,s+="a=ssrc-group:FID "+e.sendEncodingParameters[0].ssrc+" "+e.sendEncodingParameters[0].rtx.ssrc+"\r\n")}return s+="a=ssrc:"+e.sendEncodingParameters[0].ssrc+" cname:"+r.localCName+"\r\n",e.rtpSender&&e.sendEncodingParameters[0].rtx&&(s+="a=ssrc:"+e.sendEncodingParameters[0].rtx.ssrc+" cname:"+r.localCName+"\r\n"),s},r.getDirection=function(e,t){for(var n=r.splitLines(e),i=0;i<n.length;i++)switch(n[i]){case"a=sendrecv":case"a=sendonly":case"a=recvonly":case"a=inactive":return n[i].substr(2)}return t?r.getDirection(t):"sendrecv"},r.getKind=function(e){return r.splitLines(e)[0].split(" ")[0].substr(2)},r.isRejected=function(e){return"0"===e.split(" ",2)[1]},r.parseMLine=function(e){var t=r.splitLines(e)[0].split(" ");return{kind:t[0].substr(2),port:parseInt(t[1],10),protocol:t[2],fmt:t.slice(3).join(" ")}},"object"==typeof t&&(t.exports=r)},{}],40:[function(e,t,n){(function(n){"use strict";var r=e("./adapter_factory.js");t.exports=r({window:n.window})}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./adapter_factory.js":41}],41:[function(e,t,n){"use strict";var r=e("./utils");t.exports=function(t,n){var i=t&&t.window,s={shimChrome:!0,shimFirefox:!0,shimEdge:!0,shimSafari:!0};for(var o in n)hasOwnProperty.call(n,o)&&(s[o]=n[o]);var a=r.log,l=r.detectBrowser(i),u={browserDetails:l,extractVersion:r.extractVersion,disableLog:r.disableLog,disableWarnings:r.disableWarnings},c=e("./chrome/chrome_shim")||null,d=e("./edge/edge_shim")||null,h=e("./firefox/firefox_shim")||null,f=e("./safari/safari_shim")||null,p=e("./common_shim")||null;switch(l.browser){case"chrome":if(!c||!c.shimPeerConnection||!s.shimChrome)return a("Chrome shim is not included in this adapter release."),u;a("adapter.js shimming chrome."),u.browserShim=c,p.shimCreateObjectURL(i),c.shimGetUserMedia(i),c.shimMediaStream(i),c.shimSourceObject(i),c.shimPeerConnection(i),c.shimOnTrack(i),c.shimAddTrackRemoveTrack(i),c.shimGetSendersWithDtmf(i),p.shimRTCIceCandidate(i);break;case"firefox":if(!h||!h.shimPeerConnection||!s.shimFirefox)return a("Firefox shim is not included in this adapter release."),u;a("adapter.js shimming firefox."),u.browserShim=h,p.shimCreateObjectURL(i),h.shimGetUserMedia(i),h.shimSourceObject(i),h.shimPeerConnection(i),h.shimOnTrack(i),h.shimRemoveStream(i),p.shimRTCIceCandidate(i);break;case"edge":if(!d||!d.shimPeerConnection||!s.shimEdge)return a("MS edge shim is not included in this adapter release."),u;a("adapter.js shimming edge."),u.browserShim=d,p.shimCreateObjectURL(i),d.shimGetUserMedia(i),d.shimPeerConnection(i),d.shimReplaceTrack(i);break;case"safari":if(!f||!s.shimSafari)return a("Safari shim is not included in this adapter release."),u;a("adapter.js shimming safari."),u.browserShim=f,p.shimCreateObjectURL(i),f.shimRTCIceServerUrls(i),f.shimCallbacksAPI(i),f.shimLocalStreamsAPI(i),f.shimRemoteStreamsAPI(i),f.shimTrackEventTransceiver(i),f.shimGetUserMedia(i),f.shimCreateOfferLegacy(i),p.shimRTCIceCandidate(i);break;default:a("Unsupported browser!")}return u}},{"./chrome/chrome_shim":42,"./common_shim":44,"./edge/edge_shim":45,"./firefox/firefox_shim":47,"./safari/safari_shim":49,"./utils":50}],42:[function(e,t,n){"use strict";var r=e("../utils.js"),i=r.log,s={shimMediaStream:function(e){e.MediaStream=e.MediaStream||e.webkitMediaStream},shimOnTrack:function(e){if("object"==typeof e&&e.RTCPeerConnection&&!("ontrack"in e.RTCPeerConnection.prototype)){Object.defineProperty(e.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(e){this._ontrack&&this.removeEventListener("track",this._ontrack),this.addEventListener("track",this._ontrack=e)}});var t=e.RTCPeerConnection.prototype.setRemoteDescription;e.RTCPeerConnection.prototype.setRemoteDescription=function(){var n=this;return n._ontrackpoly||(n._ontrackpoly=function(t){t.stream.addEventListener("addtrack",function(r){var i;i=e.RTCPeerConnection.prototype.getReceivers?n.getReceivers().find(function(e){return e.track&&e.track.id===r.track.id}):{track:r.track};var s=new Event("track");s.track=r.track,s.receiver=i,s.transceiver={receiver:i},s.streams=[t.stream],n.dispatchEvent(s)}),t.stream.getTracks().forEach(function(r){var i;i=e.RTCPeerConnection.prototype.getReceivers?n.getReceivers().find(function(e){return e.track&&e.track.id===r.id}):{track:r};var s=new Event("track");s.track=r,s.receiver=i,s.transceiver={receiver:i},s.streams=[t.stream],n.dispatchEvent(s)})},n.addEventListener("addstream",n._ontrackpoly)),t.apply(n,arguments)}}},shimGetSendersWithDtmf:function(e){if("object"==typeof e&&e.RTCPeerConnection&&!("getSenders"in e.RTCPeerConnection.prototype)&&"createDTMFSender"in e.RTCPeerConnection.prototype){var t=function(e,t){return{track:t,get dtmf(){return void 0===this._dtmf&&("audio"===t.kind?this._dtmf=e.createDTMFSender(t):this._dtmf=null),this._dtmf},_pc:e}};if(!e.RTCPeerConnection.prototype.getSenders){e.RTCPeerConnection.prototype.getSenders=function(){return this._senders=this._senders||[],this._senders.slice()};var n=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addTrack=function(e,r){var i=n.apply(this,arguments);return i||(i=t(this,e),this._senders.push(i)),i};var r=e.RTCPeerConnection.prototype.removeTrack;e.RTCPeerConnection.prototype.removeTrack=function(e){r.apply(this,arguments);var t=this._senders.indexOf(e);-1!==t&&this._senders.splice(t,1)}}var i=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(e){var n=this;n._senders=n._senders||[],i.apply(n,[e]),e.getTracks().forEach(function(e){n._senders.push(t(n,e))})};var s=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;t._senders=t._senders||[],s.apply(t,[e]),e.getTracks().forEach(function(e){var n=t._senders.find(function(t){return t.track===e});n&&t._senders.splice(t._senders.indexOf(n),1)})}}else if("object"==typeof e&&e.RTCPeerConnection&&"getSenders"in e.RTCPeerConnection.prototype&&"createDTMFSender"in e.RTCPeerConnection.prototype&&e.RTCRtpSender&&!("dtmf"in e.RTCRtpSender.prototype)){var o=e.RTCPeerConnection.prototype.getSenders;e.RTCPeerConnection.prototype.getSenders=function(){var e=this,t=o.apply(e,[]);return t.forEach(function(t){t._pc=e}),t},Object.defineProperty(e.RTCRtpSender.prototype,"dtmf",{get:function(){return void 0===this._dtmf&&("audio"===this.track.kind?this._dtmf=this._pc.createDTMFSender(this.track):this._dtmf=null),this._dtmf}})}},shimSourceObject:function(e){var t=e&&e.URL;"object"==typeof e&&(!e.HTMLMediaElement||"srcObject"in e.HTMLMediaElement.prototype||Object.defineProperty(e.HTMLMediaElement.prototype,"srcObject",{get:function(){return this._srcObject},set:function(e){var n=this;this._srcObject=e,this.src&&t.revokeObjectURL(this.src),e?(this.src=t.createObjectURL(e),e.addEventListener("addtrack",function(){n.src&&t.revokeObjectURL(n.src),n.src=t.createObjectURL(e)}),e.addEventListener("removetrack",function(){n.src&&t.revokeObjectURL(n.src),n.src=t.createObjectURL(e)})):this.src=""}}))},shimAddTrackRemoveTrack:function(e){function t(e,t){var n=t.sdp;return Object.keys(e._reverseStreams||[]).forEach(function(t){var r=e._reverseStreams[t],i=e._streams[r.id];n=n.replace(new RegExp(i.id,"g"),r.id)}),new RTCSessionDescription({type:t.type,sdp:n})}var n=r.detectBrowser(e);if(!(e.RTCPeerConnection.prototype.addTrack&&n.version>=64)){var i=e.RTCPeerConnection.prototype.getLocalStreams;e.RTCPeerConnection.prototype.getLocalStreams=function(){var e=this,t=i.apply(this);return e._reverseStreams=e._reverseStreams||{},t.map(function(t){return e._reverseStreams[t.id]})};var s=e.RTCPeerConnection.prototype.addStream;e.RTCPeerConnection.prototype.addStream=function(t){var n=this;if(n._streams=n._streams||{},n._reverseStreams=n._reverseStreams||{},t.getTracks().forEach(function(e){if(n.getSenders().find(function(t){return t.track===e}))throw new DOMException("Track already exists.","InvalidAccessError")}),!n._reverseStreams[t.id]){var r=new e.MediaStream(t.getTracks());n._streams[t.id]=r,n._reverseStreams[r.id]=t,t=r}s.apply(n,[t])};var o=e.RTCPeerConnection.prototype.removeStream;e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;t._streams=t._streams||{},t._reverseStreams=t._reverseStreams||{},o.apply(t,[t._streams[e.id]||e]),delete t._reverseStreams[t._streams[e.id]?t._streams[e.id].id:e.id],delete t._streams[e.id]},e.RTCPeerConnection.prototype.addTrack=function(t,n){var r=this;if("closed"===r.signalingState)throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");var i=[].slice.call(arguments,1);if(1!==i.length||!i[0].getTracks().find(function(e){return e===t}))throw new DOMException("The adapter.js addTrack polyfill only supports a single stream which is associated with the specified track.","NotSupportedError");if(r.getSenders().find(function(e){return e.track===t}))throw new DOMException("Track already exists.","InvalidAccessError");r._streams=r._streams||{},r._reverseStreams=r._reverseStreams||{};var s=r._streams[n.id];if(s)s.addTrack(t),Promise.resolve().then(function(){r.dispatchEvent(new Event("negotiationneeded"))});else{var o=new e.MediaStream([t]);r._streams[n.id]=o,r._reverseStreams[o.id]=n,r.addStream(o)}return r.getSenders().find(function(e){return e.track===t})},["createOffer","createAnswer"].forEach(function(n){var r=e.RTCPeerConnection.prototype[n];e.RTCPeerConnection.prototype[n]=function(){var e=this,n=arguments;return arguments.length&&"function"==typeof arguments[0]?r.apply(e,[function(r){var i=t(e,r);n[0].apply(null,[i])},function(e){n[1]&&n[1].apply(null,e)},arguments[2]]):r.apply(e,arguments).then(function(n){return t(e,n)})}});var a=e.RTCPeerConnection.prototype.setLocalDescription;e.RTCPeerConnection.prototype.setLocalDescription=function(){return arguments.length&&arguments[0].type?(arguments[0]=function(e,t){var n=t.sdp;return Object.keys(e._reverseStreams||[]).forEach(function(t){var r=e._reverseStreams[t],i=e._streams[r.id];n=n.replace(new RegExp(r.id,"g"),i.id)}),new RTCSessionDescription({type:t.type,sdp:n})}(this,arguments[0]),a.apply(this,arguments)):a.apply(this,arguments)};var l=Object.getOwnPropertyDescriptor(e.RTCPeerConnection.prototype,"localDescription");Object.defineProperty(e.RTCPeerConnection.prototype,"localDescription",{get:function(){var e=l.get.apply(this);return""===e.type?e:t(this,e)}}),e.RTCPeerConnection.prototype.removeTrack=function(e){var t=this;if("closed"===t.signalingState)throw new DOMException("The RTCPeerConnection's signalingState is 'closed'.","InvalidStateError");if(!e._pc)throw new DOMException("Argument 1 of RTCPeerConnection.removeTrack does not implement interface RTCRtpSender.","TypeError");if(!(e._pc===t))throw new DOMException("Sender was not created by this connection.","InvalidAccessError");t._streams=t._streams||{};var n;Object.keys(t._streams).forEach(function(r){t._streams[r].getTracks().find(function(t){return e.track===t})&&(n=t._streams[r])}),n&&(1===n.getTracks().length?t.removeStream(t._reverseStreams[n.id]):n.removeTrack(e.track),t.dispatchEvent(new Event("negotiationneeded")))}}},shimPeerConnection:function(e){var t=r.detectBrowser(e);if(e.RTCPeerConnection){var n=e.RTCPeerConnection;e.RTCPeerConnection=function(e,t){if(e&&e.iceServers){for(var i=[],s=0;s<e.iceServers.length;s++){var o=e.iceServers[s];!o.hasOwnProperty("urls")&&o.hasOwnProperty("url")?(r.deprecated("RTCIceServer.url","RTCIceServer.urls"),(o=JSON.parse(JSON.stringify(o))).urls=o.url,i.push(o)):i.push(e.iceServers[s])}e.iceServers=i}return new n(e,t)},e.RTCPeerConnection.prototype=n.prototype,Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return n.generateCertificate}})}else e.RTCPeerConnection=function(t,n){return i("PeerConnection"),t&&t.iceTransportPolicy&&(t.iceTransports=t.iceTransportPolicy),new e.webkitRTCPeerConnection(t,n)},e.RTCPeerConnection.prototype=e.webkitRTCPeerConnection.prototype,e.webkitRTCPeerConnection.generateCertificate&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return e.webkitRTCPeerConnection.generateCertificate}});var s=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(e,t,n){var r=this,i=arguments;if(arguments.length>0&&"function"==typeof e)return s.apply(this,arguments);if(0===s.length&&(0===arguments.length||"function"!=typeof arguments[0]))return s.apply(this,[]);var o=function(e){var t={};return e.result().forEach(function(e){var n={id:e.id,timestamp:e.timestamp,type:{localcandidate:"local-candidate",remotecandidate:"remote-candidate"}[e.type]||e.type};e.names().forEach(function(t){n[t]=e.stat(t)}),t[n.id]=n}),t},a=function(e){return new Map(Object.keys(e).map(function(t){return[t,e[t]]}))};if(arguments.length>=2){return s.apply(this,[function(e){i[1](a(o(e)))},arguments[0]])}return new Promise(function(e,t){s.apply(r,[function(t){e(a(o(t)))},t])}).then(t,n)},t.version<51&&["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){var n=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){var e=arguments,t=this,r=new Promise(function(r,i){n.apply(t,[e[0],r,i])});return e.length<2?r:r.then(function(){e[1].apply(null,[])},function(t){e.length>=3&&e[2].apply(null,[t])})}}),t.version<52&&["createOffer","createAnswer"].forEach(function(t){var n=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){var e=this;if(arguments.length<1||1===arguments.length&&"object"==typeof arguments[0]){var t=1===arguments.length?arguments[0]:void 0;return new Promise(function(r,i){n.apply(e,[r,i,t])})}return n.apply(this,arguments)}}),["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){var n=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){return arguments[0]=new("addIceCandidate"===t?e.RTCIceCandidate:e.RTCSessionDescription)(arguments[0]),n.apply(this,arguments)}});var o=e.RTCPeerConnection.prototype.addIceCandidate;e.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?o.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())}}};t.exports={shimMediaStream:s.shimMediaStream,shimOnTrack:s.shimOnTrack,shimAddTrackRemoveTrack:s.shimAddTrackRemoveTrack,shimGetSendersWithDtmf:s.shimGetSendersWithDtmf,shimSourceObject:s.shimSourceObject,shimPeerConnection:s.shimPeerConnection,shimGetUserMedia:e("./getusermedia")}},{"../utils.js":50,"./getusermedia":43}],43:[function(e,t,n){"use strict";var r=e("../utils.js"),i=r.log;t.exports=function(e){var t=r.detectBrowser(e),n=e&&e.navigator,s=function(e){if("object"!=typeof e||e.mandatory||e.optional)return e;var t={};return Object.keys(e).forEach(function(n){if("require"!==n&&"advanced"!==n&&"mediaSource"!==n){var r="object"==typeof e[n]?e[n]:{ideal:e[n]};void 0!==r.exact&&"number"==typeof r.exact&&(r.min=r.max=r.exact);var i=function(e,t){return e?e+t.charAt(0).toUpperCase()+t.slice(1):"deviceId"===t?"sourceId":t};if(void 0!==r.ideal){t.optional=t.optional||[];var s={};"number"==typeof r.ideal?(s[i("min",n)]=r.ideal,t.optional.push(s),(s={})[i("max",n)]=r.ideal,t.optional.push(s)):(s[i("",n)]=r.ideal,t.optional.push(s))}void 0!==r.exact&&"number"!=typeof r.exact?(t.mandatory=t.mandatory||{},t.mandatory[i("",n)]=r.exact):["min","max"].forEach(function(e){void 0!==r[e]&&(t.mandatory=t.mandatory||{},t.mandatory[i(e,n)]=r[e])})}}),e.advanced&&(t.optional=(t.optional||[]).concat(e.advanced)),t},o=function(e,r){if(t.version>=61)return r(e);if((e=JSON.parse(JSON.stringify(e)))&&"object"==typeof e.audio){var o=function(e,t,n){t in e&&!(n in e)&&(e[n]=e[t],delete e[t])};o((e=JSON.parse(JSON.stringify(e))).audio,"autoGainControl","googAutoGainControl"),o(e.audio,"noiseSuppression","googNoiseSuppression"),e.audio=s(e.audio)}if(e&&"object"==typeof e.video){var a=e.video.facingMode;a=a&&("object"==typeof a?a:{ideal:a});var l=t.version<66;if(a&&("user"===a.exact||"environment"===a.exact||"user"===a.ideal||"environment"===a.ideal)&&(!n.mediaDevices.getSupportedConstraints||!n.mediaDevices.getSupportedConstraints().facingMode||l)){delete e.video.facingMode;var u;if("environment"===a.exact||"environment"===a.ideal?u=["back","rear"]:"user"!==a.exact&&"user"!==a.ideal||(u=["front"]),u)return n.mediaDevices.enumerateDevices().then(function(t){var n=(t=t.filter(function(e){return"videoinput"===e.kind})).find(function(e){return u.some(function(t){return-1!==e.label.toLowerCase().indexOf(t)})});return!n&&t.length&&-1!==u.indexOf("back")&&(n=t[t.length-1]),n&&(e.video.deviceId=a.exact?{exact:n.deviceId}:{ideal:n.deviceId}),e.video=s(e.video),i("chrome: "+JSON.stringify(e)),r(e)})}e.video=s(e.video)}return i("chrome: "+JSON.stringify(e)),r(e)},a=function(e){return{name:{PermissionDeniedError:"NotAllowedError",InvalidStateError:"NotReadableError",DevicesNotFoundError:"NotFoundError",ConstraintNotSatisfiedError:"OverconstrainedError",TrackStartError:"NotReadableError",MediaDeviceFailedDueToShutdown:"NotReadableError",MediaDeviceKillSwitchOn:"NotReadableError"}[e.name]||e.name,message:e.message,constraint:e.constraintName,toString:function(){return this.name+(this.message&&": ")+this.message}}};n.getUserMedia=function(e,t,r){o(e,function(e){n.webkitGetUserMedia(e,t,function(e){r&&r(a(e))})})};var l=function(e){return new Promise(function(t,r){n.getUserMedia(e,t,r)})};if(n.mediaDevices||(n.mediaDevices={getUserMedia:l,enumerateDevices:function(){return new Promise(function(t){var n={audio:"audioinput",video:"videoinput"};return e.MediaStreamTrack.getSources(function(e){t(e.map(function(e){return{label:e.label,kind:n[e.kind],deviceId:e.id,groupId:""}}))})})},getSupportedConstraints:function(){return{deviceId:!0,echoCancellation:!0,facingMode:!0,frameRate:!0,height:!0,width:!0}}}),n.mediaDevices.getUserMedia){var u=n.mediaDevices.getUserMedia.bind(n.mediaDevices);n.mediaDevices.getUserMedia=function(e){return o(e,function(e){return u(e).then(function(t){if(e.audio&&!t.getAudioTracks().length||e.video&&!t.getVideoTracks().length)throw t.getTracks().forEach(function(e){e.stop()}),new DOMException("","NotFoundError");return t},function(e){return Promise.reject(a(e))})})}}else n.mediaDevices.getUserMedia=function(e){return l(e)};void 0===n.mediaDevices.addEventListener&&(n.mediaDevices.addEventListener=function(){i("Dummy mediaDevices.addEventListener called.")}),void 0===n.mediaDevices.removeEventListener&&(n.mediaDevices.removeEventListener=function(){i("Dummy mediaDevices.removeEventListener called.")})}},{"../utils.js":50}],44:[function(e,t,n){"use strict";var r=e("sdp"),i=e("./utils");t.exports={shimRTCIceCandidate:function(e){if(!(e.RTCIceCandidate&&"foundation"in e.RTCIceCandidate.prototype)){var t=e.RTCIceCandidate;e.RTCIceCandidate=function(e){"object"==typeof e&&e.candidate&&0===e.candidate.indexOf("a=")&&((e=JSON.parse(JSON.stringify(e))).candidate=e.candidate.substr(2));var n=new t(e),i=r.parseCandidate(e.candidate),s=Object.assign(n,i);return s.toJSON=function(){return{candidate:s.candidate,sdpMid:s.sdpMid,sdpMLineIndex:s.sdpMLineIndex,usernameFragment:s.usernameFragment}},s},function(e,t,n){if(e.RTCPeerConnection){var r=e.RTCPeerConnection.prototype,i=r.addEventListener;r.addEventListener=function(e,r){if(e!==t)return i.apply(this,arguments);var s=function(e){r(n(e))};return this._eventMap=this._eventMap||{},this._eventMap[r]=s,i.apply(this,[e,s])};var s=r.removeEventListener;r.removeEventListener=function(e,n){if(e!==t||!this._eventMap||!this._eventMap[n])return s.apply(this,arguments);var r=this._eventMap[n];return delete this._eventMap[n],s.apply(this,[e,r])},Object.defineProperty(r,"on"+t,{get:function(){return this["_on"+t]},set:function(e){this["_on"+t]&&(this.removeEventListener(t,this["_on"+t]),delete this["_on"+t]),e&&this.addEventListener(t,this["_on"+t]=e)}})}}(e,"icecandidate",function(t){return t.candidate&&Object.defineProperty(t,"candidate",{value:new e.RTCIceCandidate(t.candidate),writable:"false"}),t})}},shimCreateObjectURL:function(e){var t=e&&e.URL;if("object"==typeof e&&e.HTMLMediaElement&&"srcObject"in e.HTMLMediaElement.prototype&&t.createObjectURL&&t.revokeObjectURL){var n=t.createObjectURL.bind(t),r=t.revokeObjectURL.bind(t),s=new Map,o=0;t.createObjectURL=function(e){if("getTracks"in e){var t="polyblob:"+ ++o;return s.set(t,e),i.deprecated("URL.createObjectURL(stream)","elem.srcObject = stream"),t}return n(e)},t.revokeObjectURL=function(e){r(e),s.delete(e)};var a=Object.getOwnPropertyDescriptor(e.HTMLMediaElement.prototype,"src");Object.defineProperty(e.HTMLMediaElement.prototype,"src",{get:function(){return a.get.apply(this)},set:function(e){return this.srcObject=s.get(e)||null,a.set.apply(this,[e])}});var l=e.HTMLMediaElement.prototype.setAttribute;e.HTMLMediaElement.prototype.setAttribute=function(){return 2===arguments.length&&"src"===(""+arguments[0]).toLowerCase()&&(this.srcObject=s.get(arguments[1])||null),l.apply(this,arguments)}}}}},{"./utils":50,sdp:39}],45:[function(e,t,n){"use strict";var r=e("../utils"),i=e("rtcpeerconnection-shim");t.exports={shimGetUserMedia:e("./getusermedia"),shimPeerConnection:function(e){var t=r.detectBrowser(e);if(e.RTCIceGatherer&&(e.RTCIceCandidate||(e.RTCIceCandidate=function(e){return e}),e.RTCSessionDescription||(e.RTCSessionDescription=function(e){return e}),t.version<15025)){var n=Object.getOwnPropertyDescriptor(e.MediaStreamTrack.prototype,"enabled");Object.defineProperty(e.MediaStreamTrack.prototype,"enabled",{set:function(e){n.set.call(this,e);var t=new Event("enabled");t.enabled=e,this.dispatchEvent(t)}})}!e.RTCRtpSender||"dtmf"in e.RTCRtpSender.prototype||Object.defineProperty(e.RTCRtpSender.prototype,"dtmf",{get:function(){return void 0===this._dtmf&&("audio"===this.track.kind?this._dtmf=new e.RTCDtmfSender(this):"video"===this.track.kind&&(this._dtmf=null)),this._dtmf}}),e.RTCPeerConnection=i(e,t.version)},shimReplaceTrack:function(e){!e.RTCRtpSender||"replaceTrack"in e.RTCRtpSender.prototype||(e.RTCRtpSender.prototype.replaceTrack=e.RTCRtpSender.prototype.setTrack)}}},{"../utils":50,"./getusermedia":46,"rtcpeerconnection-shim":34}],46:[function(e,t,n){"use strict";t.exports=function(e){var t=e&&e.navigator,n=t.mediaDevices.getUserMedia.bind(t.mediaDevices);t.mediaDevices.getUserMedia=function(e){return n(e).catch(function(e){return Promise.reject(function(e){return{name:{PermissionDeniedError:"NotAllowedError"}[e.name]||e.name,message:e.message,constraint:e.constraint,toString:function(){return this.name}}}(e))})}}},{}],47:[function(e,t,n){"use strict";var r=e("../utils"),i={shimOnTrack:function(e){"object"!=typeof e||!e.RTCPeerConnection||"ontrack"in e.RTCPeerConnection.prototype||Object.defineProperty(e.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(e){this._ontrack&&(this.removeEventListener("track",this._ontrack),this.removeEventListener("addstream",this._ontrackpoly)),this.addEventListener("track",this._ontrack=e),this.addEventListener("addstream",this._ontrackpoly=function(e){e.stream.getTracks().forEach(function(t){var n=new Event("track");n.track=t,n.receiver={track:t},n.transceiver={receiver:n.receiver},n.streams=[e.stream],this.dispatchEvent(n)}.bind(this))}.bind(this))}}),"object"==typeof e&&e.RTCTrackEvent&&"receiver"in e.RTCTrackEvent.prototype&&!("transceiver"in e.RTCTrackEvent.prototype)&&Object.defineProperty(e.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})},shimSourceObject:function(e){"object"==typeof e&&(!e.HTMLMediaElement||"srcObject"in e.HTMLMediaElement.prototype||Object.defineProperty(e.HTMLMediaElement.prototype,"srcObject",{get:function(){return this.mozSrcObject},set:function(e){this.mozSrcObject=e}}))},shimPeerConnection:function(e){var t=r.detectBrowser(e);if("object"==typeof e&&(e.RTCPeerConnection||e.mozRTCPeerConnection)){e.RTCPeerConnection||(e.RTCPeerConnection=function(n,r){if(t.version<38&&n&&n.iceServers){for(var i=[],s=0;s<n.iceServers.length;s++){var o=n.iceServers[s];if(o.hasOwnProperty("urls"))for(var a=0;a<o.urls.length;a++){var l={url:o.urls[a]};0===o.urls[a].indexOf("turn")&&(l.username=o.username,l.credential=o.credential),i.push(l)}else i.push(n.iceServers[s])}n.iceServers=i}return new e.mozRTCPeerConnection(n,r)},e.RTCPeerConnection.prototype=e.mozRTCPeerConnection.prototype,e.mozRTCPeerConnection.generateCertificate&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return e.mozRTCPeerConnection.generateCertificate}}),e.RTCSessionDescription=e.mozRTCSessionDescription,e.RTCIceCandidate=e.mozRTCIceCandidate),["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(t){var n=e.RTCPeerConnection.prototype[t];e.RTCPeerConnection.prototype[t]=function(){return arguments[0]=new("addIceCandidate"===t?e.RTCIceCandidate:e.RTCSessionDescription)(arguments[0]),n.apply(this,arguments)}});var n=e.RTCPeerConnection.prototype.addIceCandidate;e.RTCPeerConnection.prototype.addIceCandidate=function(){return arguments[0]?n.apply(this,arguments):(arguments[1]&&arguments[1].apply(null),Promise.resolve())};var i={inboundrtp:"inbound-rtp",outboundrtp:"outbound-rtp",candidatepair:"candidate-pair",localcandidate:"local-candidate",remotecandidate:"remote-candidate"},s=e.RTCPeerConnection.prototype.getStats;e.RTCPeerConnection.prototype.getStats=function(e,n,r){return s.apply(this,[e||null]).then(function(e){if(t.version<48&&(e=function(e){var t=new Map;return Object.keys(e).forEach(function(n){t.set(n,e[n]),t[n]=e[n]}),t}(e)),t.version<53&&!n)try{e.forEach(function(e){e.type=i[e.type]||e.type})}catch(t){if("TypeError"!==t.name)throw t;e.forEach(function(t,n){e.set(n,Object.assign({},t,{type:i[t.type]||t.type}))})}return e}).then(n,r)}}},shimRemoveStream:function(e){!e.RTCPeerConnection||"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(e){var t=this;r.deprecated("removeStream","removeTrack"),this.getSenders().forEach(function(n){n.track&&-1!==e.getTracks().indexOf(n.track)&&t.removeTrack(n)})})}};t.exports={shimOnTrack:i.shimOnTrack,shimSourceObject:i.shimSourceObject,shimPeerConnection:i.shimPeerConnection,shimRemoveStream:i.shimRemoveStream,shimGetUserMedia:e("./getusermedia")}},{"../utils":50,"./getusermedia":48}],48:[function(e,t,n){"use strict";var r=e("../utils"),i=r.log;t.exports=function(e){var t=r.detectBrowser(e),n=e&&e.navigator,s=e&&e.MediaStreamTrack,o=function(e){return{name:{InternalError:"NotReadableError",NotSupportedError:"TypeError",PermissionDeniedError:"NotAllowedError",SecurityError:"NotAllowedError"}[e.name]||e.name,message:{"The operation is insecure.":"The request is not allowed by the user agent or the platform in the current context."}[e.message]||e.message,constraint:e.constraint,toString:function(){return this.name+(this.message&&": ")+this.message}}},a=function(e,r,s){var a=function(e){if("object"!=typeof e||e.require)return e;var t=[];return Object.keys(e).forEach(function(n){if("require"!==n&&"advanced"!==n&&"mediaSource"!==n){var r=e[n]="object"==typeof e[n]?e[n]:{ideal:e[n]};if(void 0===r.min&&void 0===r.max&&void 0===r.exact||t.push(n),void 0!==r.exact&&("number"==typeof r.exact?r.min=r.max=r.exact:e[n]=r.exact,delete r.exact),void 0!==r.ideal){e.advanced=e.advanced||[];var i={};"number"==typeof r.ideal?i[n]={min:r.ideal,max:r.ideal}:i[n]=r.ideal,e.advanced.push(i),delete r.ideal,Object.keys(r).length||delete e[n]}}}),t.length&&(e.require=t),e};return e=JSON.parse(JSON.stringify(e)),t.version<38&&(i("spec: "+JSON.stringify(e)),e.audio&&(e.audio=a(e.audio)),e.video&&(e.video=a(e.video)),i("ff37: "+JSON.stringify(e))),n.mozGetUserMedia(e,r,function(e){s(o(e))})};if(n.mediaDevices||(n.mediaDevices={getUserMedia:function(e){return new Promise(function(t,n){a(e,t,n)})},addEventListener:function(){},removeEventListener:function(){}}),n.mediaDevices.enumerateDevices=n.mediaDevices.enumerateDevices||function(){return new Promise(function(e){e([{kind:"audioinput",deviceId:"default",label:"",groupId:""},{kind:"videoinput",deviceId:"default",label:"",groupId:""}])})},t.version<41){var l=n.mediaDevices.enumerateDevices.bind(n.mediaDevices);n.mediaDevices.enumerateDevices=function(){return l().then(void 0,function(e){if("NotFoundError"===e.name)return[];throw e})}}if(t.version<49){var u=n.mediaDevices.getUserMedia.bind(n.mediaDevices);n.mediaDevices.getUserMedia=function(e){return u(e).then(function(t){if(e.audio&&!t.getAudioTracks().length||e.video&&!t.getVideoTracks().length)throw t.getTracks().forEach(function(e){e.stop()}),new DOMException("The object can not be found here.","NotFoundError");return t},function(e){return Promise.reject(o(e))})}}if(!(t.version>55&&"autoGainControl"in n.mediaDevices.getSupportedConstraints())){var c=function(e,t,n){t in e&&!(n in e)&&(e[n]=e[t],delete e[t])},d=n.mediaDevices.getUserMedia.bind(n.mediaDevices);if(n.mediaDevices.getUserMedia=function(e){return"object"==typeof e&&"object"==typeof e.audio&&(e=JSON.parse(JSON.stringify(e)),c(e.audio,"autoGainControl","mozAutoGainControl"),c(e.audio,"noiseSuppression","mozNoiseSuppression")),d(e)},s&&s.prototype.getSettings){var h=s.prototype.getSettings;s.prototype.getSettings=function(){var e=h.apply(this,arguments);return c(e,"mozAutoGainControl","autoGainControl"),c(e,"mozNoiseSuppression","noiseSuppression"),e}}if(s&&s.prototype.applyConstraints){var f=s.prototype.applyConstraints;s.prototype.applyConstraints=function(e){return"audio"===this.kind&&"object"==typeof e&&(e=JSON.parse(JSON.stringify(e)),c(e,"autoGainControl","mozAutoGainControl"),c(e,"noiseSuppression","mozNoiseSuppression")),f.apply(this,[e])}}}n.getUserMedia=function(e,i,s){if(t.version<44)return a(e,i,s);r.deprecated("navigator.getUserMedia","navigator.mediaDevices.getUserMedia"),n.mediaDevices.getUserMedia(e).then(i,s)}}},{"../utils":50}],49:[function(e,t,n){"use strict";var r=e("../utils"),i={shimLocalStreamsAPI:function(e){if("object"==typeof e&&e.RTCPeerConnection){if("getLocalStreams"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getLocalStreams=function(){return this._localStreams||(this._localStreams=[]),this._localStreams}),"getStreamById"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getStreamById=function(e){var t=null;return this._localStreams&&this._localStreams.forEach(function(n){n.id===e&&(t=n)}),this._remoteStreams&&this._remoteStreams.forEach(function(n){n.id===e&&(t=n)}),t}),!("addStream"in e.RTCPeerConnection.prototype)){var t=e.RTCPeerConnection.prototype.addTrack;e.RTCPeerConnection.prototype.addStream=function(e){this._localStreams||(this._localStreams=[]),-1===this._localStreams.indexOf(e)&&this._localStreams.push(e);var n=this;e.getTracks().forEach(function(r){t.call(n,r,e)})},e.RTCPeerConnection.prototype.addTrack=function(e,n){return n&&(this._localStreams?-1===this._localStreams.indexOf(n)&&this._localStreams.push(n):this._localStreams=[n]),t.call(this,e,n)}}"removeStream"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.removeStream=function(e){this._localStreams||(this._localStreams=[]);var t=this._localStreams.indexOf(e);if(-1!==t){this._localStreams.splice(t,1);var n=this,r=e.getTracks();this.getSenders().forEach(function(e){-1!==r.indexOf(e.track)&&n.removeTrack(e)})}})}},shimRemoteStreamsAPI:function(e){"object"==typeof e&&e.RTCPeerConnection&&("getRemoteStreams"in e.RTCPeerConnection.prototype||(e.RTCPeerConnection.prototype.getRemoteStreams=function(){return this._remoteStreams?this._remoteStreams:[]}),"onaddstream"in e.RTCPeerConnection.prototype||Object.defineProperty(e.RTCPeerConnection.prototype,"onaddstream",{get:function(){return this._onaddstream},set:function(e){this._onaddstream&&(this.removeEventListener("addstream",this._onaddstream),this.removeEventListener("track",this._onaddstreampoly)),this.addEventListener("addstream",this._onaddstream=e),this.addEventListener("track",this._onaddstreampoly=function(e){var t=e.streams[0];if(this._remoteStreams||(this._remoteStreams=[]),!(this._remoteStreams.indexOf(t)>=0)){this._remoteStreams.push(t);var n=new Event("addstream");n.stream=e.streams[0],this.dispatchEvent(n)}}.bind(this))}}))},shimCallbacksAPI:function(e){if("object"==typeof e&&e.RTCPeerConnection){var t=e.RTCPeerConnection.prototype,n=t.createOffer,r=t.createAnswer,i=t.setLocalDescription,s=t.setRemoteDescription,o=t.addIceCandidate;t.createOffer=function(e,t){var r=arguments.length>=2?arguments[2]:arguments[0],i=n.apply(this,[r]);return t?(i.then(e,t),Promise.resolve()):i},t.createAnswer=function(e,t){var n=arguments.length>=2?arguments[2]:arguments[0],i=r.apply(this,[n]);return t?(i.then(e,t),Promise.resolve()):i};var a=function(e,t,n){var r=i.apply(this,[e]);return n?(r.then(t,n),Promise.resolve()):r};t.setLocalDescription=a,a=function(e,t,n){var r=s.apply(this,[e]);return n?(r.then(t,n),Promise.resolve()):r},t.setRemoteDescription=a,a=function(e,t,n){var r=o.apply(this,[e]);return n?(r.then(t,n),Promise.resolve()):r},t.addIceCandidate=a}},shimGetUserMedia:function(e){var t=e&&e.navigator;t.getUserMedia||(t.webkitGetUserMedia?t.getUserMedia=t.webkitGetUserMedia.bind(t):t.mediaDevices&&t.mediaDevices.getUserMedia&&(t.getUserMedia=function(e,n,r){t.mediaDevices.getUserMedia(e).then(n,r)}.bind(t)))},shimRTCIceServerUrls:function(e){var t=e.RTCPeerConnection;e.RTCPeerConnection=function(e,n){if(e&&e.iceServers){for(var i=[],s=0;s<e.iceServers.length;s++){var o=e.iceServers[s];!o.hasOwnProperty("urls")&&o.hasOwnProperty("url")?(r.deprecated("RTCIceServer.url","RTCIceServer.urls"),(o=JSON.parse(JSON.stringify(o))).urls=o.url,delete o.url,i.push(o)):i.push(e.iceServers[s])}e.iceServers=i}return new t(e,n)},e.RTCPeerConnection.prototype=t.prototype,"generateCertificate"in e.RTCPeerConnection&&Object.defineProperty(e.RTCPeerConnection,"generateCertificate",{get:function(){return t.generateCertificate}})},shimTrackEventTransceiver:function(e){"object"==typeof e&&e.RTCPeerConnection&&"receiver"in e.RTCTrackEvent.prototype&&!e.RTCTransceiver&&Object.defineProperty(e.RTCTrackEvent.prototype,"transceiver",{get:function(){return{receiver:this.receiver}}})},shimCreateOfferLegacy:function(e){var t=e.RTCPeerConnection.prototype.createOffer;e.RTCPeerConnection.prototype.createOffer=function(e){var n=this;if(e){var r=n.getTransceivers().find(function(e){return e.sender.track&&"audio"===e.sender.track.kind});!1===e.offerToReceiveAudio&&r?"sendrecv"===r.direction?r.setDirection("sendonly"):"recvonly"===r.direction&&r.setDirection("inactive"):!0!==e.offerToReceiveAudio||r||n.addTransceiver("audio");var i=n.getTransceivers().find(function(e){return e.sender.track&&"video"===e.sender.track.kind});!1===e.offerToReceiveVideo&&i?"sendrecv"===i.direction?i.setDirection("sendonly"):"recvonly"===i.direction&&i.setDirection("inactive"):!0!==e.offerToReceiveVideo||i||n.addTransceiver("video")}return t.apply(n,arguments)}}};t.exports={shimCallbacksAPI:i.shimCallbacksAPI,shimLocalStreamsAPI:i.shimLocalStreamsAPI,shimRemoteStreamsAPI:i.shimRemoteStreamsAPI,shimGetUserMedia:i.shimGetUserMedia,shimRTCIceServerUrls:i.shimRTCIceServerUrls,shimTrackEventTransceiver:i.shimTrackEventTransceiver,shimCreateOfferLegacy:i.shimCreateOfferLegacy}},{"../utils":50}],50:[function(e,t,n){"use strict";var r=!0,i=!0,s={disableLog:function(e){return"boolean"!=typeof e?new Error("Argument type: "+typeof e+". Please use a boolean."):(r=e,e?"adapter.js logging disabled":"adapter.js logging enabled")},disableWarnings:function(e){return"boolean"!=typeof e?new Error("Argument type: "+typeof e+". Please use a boolean."):(i=!e,"adapter.js deprecation warnings "+(e?"disabled":"enabled"))},log:function(){if("object"==typeof window){if(r)return;"undefined"!=typeof console&&"function"==typeof console.log&&console.log.apply(console,arguments)}},deprecated:function(e,t){i&&console.warn(e+" is deprecated, please use "+t+" instead.")},extractVersion:function(e,t,n){var r=e.match(t);return r&&r.length>=n&&parseInt(r[n],10)},detectBrowser:function(e){var t=e&&e.navigator,n={};if(n.browser=null,n.version=null,void 0===e||!e.navigator)return n.browser="Not a browser.",n;if(t.mozGetUserMedia)n.browser="firefox",n.version=this.extractVersion(t.userAgent,/Firefox\/(\d+)\./,1);else if(t.webkitGetUserMedia)if(e.webkitRTCPeerConnection)n.browser="chrome",n.version=this.extractVersion(t.userAgent,/Chrom(e|ium)\/(\d+)\./,2);else{if(!t.userAgent.match(/Version\/(\d+).(\d+)/))return n.browser="Unsupported webkit-based browser with GUM support but no WebRTC support.",n;n.browser="safari",n.version=this.extractVersion(t.userAgent,/AppleWebKit\/(\d+)\./,1)}else if(t.mediaDevices&&t.userAgent.match(/Edge\/(\d+).(\d+)$/))n.browser="edge",n.version=this.extractVersion(t.userAgent,/Edge\/(\d+).(\d+)$/,2);else{if(!t.mediaDevices||!t.userAgent.match(/AppleWebKit\/(\d+)\./))return n.browser="Not a supported browser.",n;n.browser="safari",n.version=this.extractVersion(t.userAgent,/AppleWebKit\/(\d+)\./,1)}return n}};t.exports={log:s.log,deprecated:s.deprecated,disableLog:s.disableLog,disableWarnings:s.disableWarnings,extractVersion:s.extractVersion,shimCreateObjectURL:s.shimCreateObjectURL,detectBrowser:s.detectBrowser.bind(s)}},{}],51:[function(e,t,n){t.exports={name:"jssip",title:"JsSIP",description:"the Javascript SIP library",version:"3.1.4",homepage:"http://jssip.net",author:"José Luis Millán <jmillan@aliax.net> (https://github.com/jmillan)",contributors:["Iñaki Baz Castillo <ibc@aliax.net> (https://github.com/ibc)","Saúl Ibarra Corretgé <saghul@gmail.com> (https://github.com/saghul)"],main:"lib-es5/JsSIP.js",keywords:["sip","websocket","webrtc","node","browser","library"],license:"MIT",repository:{type:"git",url:"https://github.com/versatica/JsSIP.git"},bugs:{url:"https://github.com/versatica/JsSIP/issues"},dependencies:{debug:"^3.1.0","sdp-transform":"^2.3.0","webrtc-adapter":"^6.0.2"},devDependencies:{"babel-core":"^6.26.0","babel-preset-env":"^1.6.1",browserify:"^14.3.0",eslint:"^4.4.1",gulp:"git+https://github.com/gulpjs/gulp.git#4.0","gulp-babel":"^7.0.0","gulp-eslint":"^4.0.0","gulp-expect-file":"0.0.7","gulp-header":"1.8.9","gulp-nodeunit-runner":"^0.2.2","gulp-plumber":"^1.1.0","gulp-rename":"^1.2.2","gulp-uglify":"^3.0.0","gulp-util":"^3.0.8",pegjs:"0.7.0","vinyl-buffer":"^1.0.0","vinyl-source-stream":"^1.1.0"},scripts:{test:"gulp test",prepublishOnly:"gulp babel"}}},{}]},{},[8])(8)});
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