@nethesis/phone-island/dist/node_modules/sdp/sdp.js

NethVoice CTI Phone Island

"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var e=require("../../_virtual/sdp.js");!function(e){const t={generateIdentifier:function(){return Math.random().toString(36).substring(2,12)}};t.localCName=t.generateIdentifier(),t.splitLines=function(e){return e.trim().split("\n").map((e=>e.trim()))},t.splitSections=function(e){return e.split("\nm=").map(((e,t)=>(t>0?"m="+e:e).trim()+"\r\n"))},t.getDescription=function(e){const r=t.splitSections(e);return r&&r[0]},t.getMediaSections=function(e){const r=t.splitSections(e);return r.shift(),r},t.matchPrefix=function(e,r){return t.splitLines(e).filter((e=>0===e.indexOf(r)))},t.parseCandidate=function(e){let t;t=0===e.indexOf("a=candidate:")?e.substring(12).split(" "):e.substring(10).split(" ");const r={foundation:t[0],component:{1:"rtp",2:"rtcp"}[t[1]]||t[1],protocol:t[2].toLowerCase(),priority:parseInt(t[3],10),ip:t[4],address:t[4],port:parseInt(t[5],10),type:t[7]};for(let e=8;e<t.length;e+=2)switch(t[e]){case"raddr":r.relatedAddress=t[e+1];break;case"rport":r.relatedPort=parseInt(t[e+1],10);break;case"tcptype":r.tcpType=t[e+1];break;case"ufrag":r.ufrag=t[e+1],r.usernameFragment=t[e+1];break;default:void 0===r[t[e]]&&(r[t[e]]=t[e+1])}return r},t.writeCandidate=function(e){const t=[];t.push(e.foundation);const r=e.component;"rtp"===r?t.push(1):"rtcp"===r?t.push(2):t.push(r),t.push(e.protocol.toUpperCase()),t.push(e.priority),t.push(e.address||e.ip),t.push(e.port);const s=e.type;return t.push("typ"),t.push(s),"host"!==s&&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.usernameFragment||e.ufrag)&&(t.push("ufrag"),t.push(e.usernameFragment||e.ufrag)),"candidate:"+t.join(" ")},t.parseIceOptions=function(e){return e.substring(14).split(" ")},t.parseRtpMap=function(e){let t=e.substring(9).split(" ");const r={payloadType:parseInt(t.shift(),10)};return t=t[0].split("/"),r.name=t[0],r.clockRate=parseInt(t[1],10),r.channels=3===t.length?parseInt(t[2],10):1,r.numChannels=r.channels,r},t.writeRtpMap=function(e){let t=e.payloadType;void 0!==e.preferredPayloadType&&(t=e.preferredPayloadType);const r=e.channels||e.numChannels||1;return"a=rtpmap:"+t+" "+e.name+"/"+e.clockRate+(1!==r?"/"+r:"")+"\r\n"},t.parseExtmap=function(e){const t=e.substring(9).split(" ");return{id:parseInt(t[0],10),direction:t[0].indexOf("/")>0?t[0].split("/")[1]:"sendrecv",uri:t[1],attributes:t.slice(2).join(" ")}},t.writeExtmap=function(e){return"a=extmap:"+(e.id||e.preferredId)+(e.direction&&"sendrecv"!==e.direction?"/"+e.direction:"")+" "+e.uri+(e.attributes?" "+e.attributes:"")+"\r\n"},t.parseFmtp=function(e){const t={};let r;const s=e.substring(e.indexOf(" ")+1).split(";");for(let e=0;e<s.length;e++)r=s[e].trim().split("="),t[r[0].trim()]=r[1];return t},t.writeFmtp=function(e){let t="",r=e.payloadType;if(void 0!==e.preferredPayloadType&&(r=e.preferredPayloadType),e.parameters&&Object.keys(e.parameters).length){const s=[];Object.keys(e.parameters).forEach((t=>{void 0!==e.parameters[t]?s.push(t+"="+e.parameters[t]):s.push(t)})),t+="a=fmtp:"+r+" "+s.join(";")+"\r\n"}return t},t.parseRtcpFb=function(e){const t=e.substring(e.indexOf(" ")+1).split(" ");return{type:t.shift(),parameter:t.join(" ")}},t.writeRtcpFb=function(e){let t="",r=e.payloadType;return void 0!==e.preferredPayloadType&&(r=e.preferredPayloadType),e.rtcpFeedback&&e.rtcpFeedback.length&&e.rtcpFeedback.forEach((e=>{t+="a=rtcp-fb:"+r+" "+e.type+(e.parameter&&e.parameter.length?" "+e.parameter:"")+"\r\n"})),t},t.parseSsrcMedia=function(e){const t=e.indexOf(" "),r={ssrc:parseInt(e.substring(7,t),10)},s=e.indexOf(":",t);return s>-1?(r.attribute=e.substring(t+1,s),r.value=e.substring(s+1)):r.attribute=e.substring(t+1),r},t.parseSsrcGroup=function(e){const t=e.substring(13).split(" ");return{semantics:t.shift(),ssrcs:t.map((e=>parseInt(e,10)))}},t.getMid=function(e){const r=t.matchPrefix(e,"a=mid:")[0];if(r)return r.substring(6)},t.parseFingerprint=function(e){const t=e.substring(14).split(" ");return{algorithm:t[0].toLowerCase(),value:t[1].toUpperCase()}},t.getDtlsParameters=function(e,r){return{role:"auto",fingerprints:t.matchPrefix(e+r,"a=fingerprint:").map(t.parseFingerprint)}},t.writeDtlsParameters=function(e,t){let r="a=setup:"+t+"\r\n";return e.fingerprints.forEach((e=>{r+="a=fingerprint:"+e.algorithm+" "+e.value+"\r\n"})),r},t.parseCryptoLine=function(e){const t=e.substring(9).split(" ");return{tag:parseInt(t[0],10),cryptoSuite:t[1],keyParams:t[2],sessionParams:t.slice(3)}},t.writeCryptoLine=function(e){return"a=crypto:"+e.tag+" "+e.cryptoSuite+" "+("object"==typeof e.keyParams?t.writeCryptoKeyParams(e.keyParams):e.keyParams)+(e.sessionParams?" "+e.sessionParams.join(" "):"")+"\r\n"},t.parseCryptoKeyParams=function(e){if(0!==e.indexOf("inline:"))return null;const t=e.substring(7).split("|");return{keyMethod:"inline",keySalt:t[0],lifeTime:t[1],mkiValue:t[2]?t[2].split(":")[0]:void 0,mkiLength:t[2]?t[2].split(":")[1]:void 0}},t.writeCryptoKeyParams=function(e){return e.keyMethod+":"+e.keySalt+(e.lifeTime?"|"+e.lifeTime:"")+(e.mkiValue&&e.mkiLength?"|"+e.mkiValue+":"+e.mkiLength:"")},t.getCryptoParameters=function(e,r){return t.matchPrefix(e+r,"a=crypto:").map(t.parseCryptoLine)},t.getIceParameters=function(e,r){const s=t.matchPrefix(e+r,"a=ice-ufrag:")[0],n=t.matchPrefix(e+r,"a=ice-pwd:")[0];return s&&n?{usernameFragment:s.substring(12),password:n.substring(10)}:null},t.writeIceParameters=function(e){let t="a=ice-ufrag:"+e.usernameFragment+"\r\na=ice-pwd:"+e.password+"\r\n";return e.iceLite&&(t+="a=ice-lite\r\n"),t},t.parseRtpParameters=function(e){const r={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]},s=t.splitLines(e)[0].split(" ");r.profile=s[2];for(let n=3;n<s.length;n++){const a=s[n],i=t.matchPrefix(e,"a=rtpmap:"+a+" ")[0];if(i){const s=t.parseRtpMap(i),n=t.matchPrefix(e,"a=fmtp:"+a+" ");switch(s.parameters=n.length?t.parseFmtp(n[0]):{},s.rtcpFeedback=t.matchPrefix(e,"a=rtcp-fb:"+a+" ").map(t.parseRtcpFb),r.codecs.push(s),s.name.toUpperCase()){case"RED":case"ULPFEC":r.fecMechanisms.push(s.name.toUpperCase())}}}t.matchPrefix(e,"a=extmap:").forEach((e=>{r.headerExtensions.push(t.parseExtmap(e))}));const n=t.matchPrefix(e,"a=rtcp-fb:* ").map(t.parseRtcpFb);return r.codecs.forEach((e=>{n.forEach((t=>{e.rtcpFeedback.find((e=>e.type===t.type&&e.parameter===t.parameter))||e.rtcpFeedback.push(t)}))})),r},t.writeRtpDescription=function(e,r){let s="";s+="m="+e+" ",s+=r.codecs.length>0?"9":"0",s+=" "+(r.profile||"UDP/TLS/RTP/SAVPF")+" ",s+=r.codecs.map((e=>void 0!==e.preferredPayloadType?e.preferredPayloadType:e.payloadType)).join(" ")+"\r\n",s+="c=IN IP4 0.0.0.0\r\n",s+="a=rtcp:9 IN IP4 0.0.0.0\r\n",r.codecs.forEach((e=>{s+=t.writeRtpMap(e),s+=t.writeFmtp(e),s+=t.writeRtcpFb(e)}));let n=0;return r.codecs.forEach((e=>{e.maxptime>n&&(n=e.maxptime)})),n>0&&(s+="a=maxptime:"+n+"\r\n"),r.headerExtensions&&r.headerExtensions.forEach((e=>{s+=t.writeExtmap(e)})),s},t.parseRtpEncodingParameters=function(e){const r=[],s=t.parseRtpParameters(e),n=-1!==s.fecMechanisms.indexOf("RED"),a=-1!==s.fecMechanisms.indexOf("ULPFEC"),i=t.matchPrefix(e,"a=ssrc:").map((e=>t.parseSsrcMedia(e))).filter((e=>"cname"===e.attribute)),p=i.length>0&&i[0].ssrc;let c;const o=t.matchPrefix(e,"a=ssrc-group:FID").map((e=>e.substring(17).split(" ").map((e=>parseInt(e,10)))));o.length>0&&o[0].length>1&&o[0][0]===p&&(c=o[0][1]),s.codecs.forEach((e=>{if("RTX"===e.name.toUpperCase()&&e.parameters.apt){let t={ssrc:p,codecPayloadType:parseInt(e.parameters.apt,10)};p&&c&&(t.rtx={ssrc:c}),r.push(t),n&&(t=JSON.parse(JSON.stringify(t)),t.fec={ssrc:p,mechanism:a?"red+ulpfec":"red"},r.push(t))}})),0===r.length&&p&&r.push({ssrc:p});let u=t.matchPrefix(e,"b=");return u.length&&(u=0===u[0].indexOf("b=TIAS:")?parseInt(u[0].substring(7),10):0===u[0].indexOf("b=AS:")?1e3*parseInt(u[0].substring(5),10)*.95-16e3:void 0,r.forEach((e=>{e.maxBitrate=u}))),r},t.parseRtcpParameters=function(e){const r={},s=t.matchPrefix(e,"a=ssrc:").map((e=>t.parseSsrcMedia(e))).filter((e=>"cname"===e.attribute))[0];s&&(r.cname=s.value,r.ssrc=s.ssrc);const n=t.matchPrefix(e,"a=rtcp-rsize");r.reducedSize=n.length>0,r.compound=0===n.length;const a=t.matchPrefix(e,"a=rtcp-mux");return r.mux=a.length>0,r},t.writeRtcpParameters=function(e){let t="";return e.reducedSize&&(t+="a=rtcp-rsize\r\n"),e.mux&&(t+="a=rtcp-mux\r\n"),void 0!==e.ssrc&&e.cname&&(t+="a=ssrc:"+e.ssrc+" cname:"+e.cname+"\r\n"),t},t.parseMsid=function(e){let r;const s=t.matchPrefix(e,"a=msid:");if(1===s.length)return r=s[0].substring(7).split(" "),{stream:r[0],track:r[1]};const n=t.matchPrefix(e,"a=ssrc:").map((e=>t.parseSsrcMedia(e))).filter((e=>"msid"===e.attribute));return n.length>0?(r=n[0].value.split(" "),{stream:r[0],track:r[1]}):void 0},t.parseSctpDescription=function(e){const r=t.parseMLine(e),s=t.matchPrefix(e,"a=max-message-size:");let n;s.length>0&&(n=parseInt(s[0].substring(19),10)),isNaN(n)&&(n=65536);const a=t.matchPrefix(e,"a=sctp-port:");if(a.length>0)return{port:parseInt(a[0].substring(12),10),protocol:r.fmt,maxMessageSize:n};const i=t.matchPrefix(e,"a=sctpmap:");if(i.length>0){const e=i[0].substring(10).split(" ");return{port:parseInt(e[0],10),protocol:e[1],maxMessageSize:n}}},t.writeSctpDescription=function(e,t){let r=[];return r="DTLS/SCTP"!==e.protocol?["m="+e.kind+" 9 "+e.protocol+" "+t.protocol+"\r\n","c=IN IP4 0.0.0.0\r\n","a=sctp-port:"+t.port+"\r\n"]:["m="+e.kind+" 9 "+e.protocol+" "+t.port+"\r\n","c=IN IP4 0.0.0.0\r\n","a=sctpmap:"+t.port+" "+t.protocol+" 65535\r\n"],void 0!==t.maxMessageSize&&r.push("a=max-message-size:"+t.maxMessageSize+"\r\n"),r.join("")},t.generateSessionId=function(){return Math.random().toString().substr(2,22)},t.writeSessionBoilerplate=function(e,r,s){let n;const a=void 0!==r?r:2;n=e||t.generateSessionId();return"v=0\r\no="+(s||"thisisadapterortc")+" "+n+" "+a+" IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\n"},t.getDirection=function(e,r){const s=t.splitLines(e);for(let e=0;e<s.length;e++)switch(s[e]){case"a=sendrecv":case"a=sendonly":case"a=recvonly":case"a=inactive":return s[e].substring(2)}return r?t.getDirection(r):"sendrecv"},t.getKind=function(e){return t.splitLines(e)[0].split(" ")[0].substring(2)},t.isRejected=function(e){return"0"===e.split(" ",2)[1]},t.parseMLine=function(e){const r=t.splitLines(e)[0].substring(2).split(" ");return{kind:r[0],port:parseInt(r[1],10),protocol:r[2],fmt:r.slice(3).join(" ")}},t.parseOLine=function(e){const r=t.matchPrefix(e,"o=")[0].substring(2).split(" ");return{username:r[0],sessionId:r[1],sessionVersion:parseInt(r[2],10),netType:r[3],addressType:r[4],address:r[5]}},t.isValidSDP=function(e){if("string"!=typeof e||0===e.length)return!1;const r=t.splitLines(e);for(let e=0;e<r.length;e++)if(r[e].length<2||"="!==r[e].charAt(1))return!1;return!0},e.exports=t}(e.sdp);var t=e.sdp.exports;exports.default=t;
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