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5 Commits
4 changed files with 82 additions and 18 deletions
+56 -2
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@@ -1,4 +1,5 @@
const Emitter = require('events');
const sdpTransform = require('sdp-transform');
const SrsClient = require('@jambonz/siprec-client-utils');
const {makeRtpEngineOpts, makeCallCountKey} = require('./utils');
const {forwardInDialogRequests} = require('drachtio-fn-b2b-sugar');
@@ -49,6 +50,15 @@ const initCdr = (srf, req) => {
};
};
const updateRtpEngineFlags = (sdp, opts) => {
try {
const parsed = sdpTransform.parse(sdp);
const codec = parsed.media[0].rtp[0].codec;
if (['PCMU', 'PCMA'].includes(codec)) opts.flags.push(`codec-accept-${codec}`);
} catch (err) {}
return opts;
};
class CallSession extends Emitter {
constructor(logger, req, res) {
super();
@@ -69,6 +79,8 @@ class CallSession extends Emitter {
this.performLcr = performLcr;
this.lookupCarrierBySid = lookupCarrierBySid;
this.lookupSipGatewaysByCarrier = lookupSipGatewaysByCarrier;
this._mediaReleased = false;
}
get account_sid() {
@@ -79,6 +91,10 @@ class CallSession extends Emitter {
return this.srf.locals.privateSipAddress;
}
get isMediaReleased() {
return this._mediaReleased;
}
async connect() {
const teams = this.teams = this.req.locals.target === 'teams';
const engine = this.srf.locals.getRtpEngine();
@@ -95,6 +111,7 @@ class CallSession extends Emitter {
unblockMedia,
blockDTMF,
unblockDTMF,
playDTMF,
subscribeDTMF,
unsubscribeDTMF,
subscribeRequest,
@@ -109,6 +126,7 @@ class CallSession extends Emitter {
this.unblockMedia = unblockMedia;
this.blockDTMF = blockDTMF;
this.unblockDTMF = unblockDTMF;
this.playDTMF = playDTMF;
this.subscribeDTMF = subscribeDTMF;
this.unsubscribeDTMF = unsubscribeDTMF;
this.subscribeRequest = subscribeRequest;
@@ -228,13 +246,13 @@ class CallSession extends Emitter {
}
// rtpengine 'offer'
const opts = {
const opts = updateRtpEngineFlags(this.req.body, {
...this.rtpEngineOpts.common,
...this.rtpEngineOpts.uac.mediaOpts,
'from-tag': this.rtpEngineOpts.uas.tag,
direction: ['private', 'public'],
sdp: this.req.body
};
});
const response = await this.offer(opts);
debug(`response from rtpengine to offer ${JSON.stringify(response)}`);
this.logger.debug({offer: opts, response}, 'initial offer to rtpengine');
@@ -560,6 +578,7 @@ Duration=${payload.duration} `
this.logger.info(`got a reinvite from FS to ${reason}`);
sdp = dlg.other.remote.sdp;
answerMedia.flags = ['asymmetric', 'port latching'];
this._mediaReleased = 'release-media' === reason;
}
else {
sdp = await dlg.other.modify(response.sdp);
@@ -586,6 +605,7 @@ Duration=${payload.duration} `
async _onInfo(dlg, req, res) {
try {
const contentType = req.get('Content-Type');
if (dlg.type === 'uas' && req.has('X-Reason')) {
const toTag = this.rtpEngineOpts.uac.tag;
const reason = req.get('X-Reason');
@@ -688,6 +708,40 @@ Duration=${payload.duration} `
res.send(succeeded ? 200 : 503);
}
}
else if (dlg.type === 'uac' && ['application/dtmf-relay', 'application/dtmf'].includes(contentType)) {
const arr = /Signal=\s*([1-9#*])/.exec(req.body);
if (!arr) {
this.logger.info({body: req.body}, '_onInfo: invalid INFO dtmf request');
throw new Error(`_onInfo: no dtmf in body for ${contentType}`);
}
const code = arr[1];
const arr2 = /Duration=\s*(\d+)/.exec(req.body);
const duration = arr2 ? arr2[1] : 250;
if (this.isMediaReleased) {
/* just relay on to the feature server */
this.logger.info({code, duration}, 'got SIP INFO DTMF from caller, relaying to feature server');
this._onDTMF(dlg.other, {event: code, duration})
.catch((err) => this.logger.info({err}, 'Error relaying DTMF to feature server'));
res.send(200);
}
else {
/* else convert SIP INFO to RFC 2833 telephony events */
this.logger.info({code, duration}, 'got SIP INFO DTMF from caller, converting to RFC 2833');
const opts = {
...this.rtpEngineOpts.common,
'from-tag': this.rtpEngineOpts.uac.tag,
code,
duration
};
const response = await this.playDTMF(opts);
if ('ok' !== response.result) {
this.logger.info({response}, `rtpengine playDTMF failed with ${JSON.stringify(response)}`);
throw new Error('rtpengine failed: answer');
}
res.send(200);
}
}
else {
const response = await dlg.other.request({
method: 'INFO',
+6
View File
@@ -7,6 +7,12 @@ function makeRtpEngineOpts(req, srcIsUsingSrtp, dstIsUsingSrtp, teams = false) {
const srtpOpts = teams ? srtpCharacteristics['teams'] : srtpCharacteristics['default'];
const dstOpts = dstIsUsingSrtp ? srtpOpts : rtpCharacteristics;
const srcOpts = srcIsUsingSrtp ? srtpOpts : rtpCharacteristics;
/* webrtc clients (e.g. sipjs) send DMTF via SIP INFO */
if ((srcIsUsingSrtp || dstIsUsingSrtp) && !teams) {
dstOpts.flags.push('inject DTMF');
srcOpts.flags.push('inject DTMF');
}
const common = {
'call-id': req.get('Call-ID'),
'replace': ['origin', 'session-connection']
+17 -14
View File
@@ -16,13 +16,14 @@
"@jambonz/rtpengine-utils": "^0.3.1",
"@jambonz/siprec-client-utils": "^0.1.4",
"@jambonz/stats-collector": "^0.1.6",
"@jambonz/time-series": "^0.1.9",
"@jambonz/time-series": "^0.1.12",
"cidr-matcher": "^2.1.1",
"debug": "^4.3.4",
"drachtio-fn-b2b-sugar": "^0.0.12",
"drachtio-srf": "^4.5.1",
"express": "^4.18.1",
"pino": "^7.11.0"
"pino": "^7.11.0",
"sdp-transform": "^2.14.1"
},
"devDependencies": {
"bent": "^7.3.12",
@@ -643,12 +644,12 @@
}
},
"node_modules/@jambonz/time-series": {
"version": "0.1.9",
"resolved": "https://registry.npmjs.org/@jambonz/time-series/-/time-series-0.1.9.tgz",
"integrity": "sha512-FLD7mLGEMToG7s6LGWr/GtNp61753RBxyYuKSxCVI6G14bm6ydgcBdG85h8EGTVQlIp9dnwbn5ebSVsGb8a46w==",
"version": "0.1.12",
"resolved": "https://registry.npmjs.org/@jambonz/time-series/-/time-series-0.1.12.tgz",
"integrity": "sha512-TmCG4jcI8oK3NXOc4/PbdRhhMVLEr5FOyG4IIWpNlwB0vbjAGLY3K+O5PF4fXK+UcNYnIrUcrd2C0J9z3+YBxw==",
"dependencies": {
"debug": "^4.3.1",
"influx": "^5.8.0"
"influx": "^5.9.3"
}
},
"node_modules/@protobufjs/aspromise": {
@@ -2643,8 +2644,9 @@
}
},
"node_modules/influx": {
"version": "5.9.2",
"integrity": "sha512-N2YRIQiwCO60BzmzEzTxyWj/hDNsce2CLSmki8S1qbRwwuKecfvC6n0OwJrFV70lk5CpU/sLsOZFIy6PP01nOA=="
"version": "5.9.3",
"resolved": "https://registry.npmjs.org/influx/-/influx-5.9.3.tgz",
"integrity": "sha512-QQU9CgwnaEV6zMrK8+vhVItsdoKFqDioXJrjJhRQaff9utvT3N0jcrQJT9qnxFLktqgJ5ngbDY68Zh4eo4uD/w=="
},
"node_modules/inherits": {
"version": "2.0.4",
@@ -5596,12 +5598,12 @@
}
},
"@jambonz/time-series": {
"version": "0.1.9",
"resolved": "https://registry.npmjs.org/@jambonz/time-series/-/time-series-0.1.9.tgz",
"integrity": "sha512-FLD7mLGEMToG7s6LGWr/GtNp61753RBxyYuKSxCVI6G14bm6ydgcBdG85h8EGTVQlIp9dnwbn5ebSVsGb8a46w==",
"version": "0.1.12",
"resolved": "https://registry.npmjs.org/@jambonz/time-series/-/time-series-0.1.12.tgz",
"integrity": "sha512-TmCG4jcI8oK3NXOc4/PbdRhhMVLEr5FOyG4IIWpNlwB0vbjAGLY3K+O5PF4fXK+UcNYnIrUcrd2C0J9z3+YBxw==",
"requires": {
"debug": "^4.3.1",
"influx": "^5.8.0"
"influx": "^5.9.3"
}
},
"@protobufjs/aspromise": {
@@ -7131,8 +7133,9 @@
}
},
"influx": {
"version": "5.9.2",
"integrity": "sha512-N2YRIQiwCO60BzmzEzTxyWj/hDNsce2CLSmki8S1qbRwwuKecfvC6n0OwJrFV70lk5CpU/sLsOZFIy6PP01nOA=="
"version": "5.9.3",
"resolved": "https://registry.npmjs.org/influx/-/influx-5.9.3.tgz",
"integrity": "sha512-QQU9CgwnaEV6zMrK8+vhVItsdoKFqDioXJrjJhRQaff9utvT3N0jcrQJT9qnxFLktqgJ5ngbDY68Zh4eo4uD/w=="
},
"inherits": {
"version": "2.0.4",
+3 -2
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@@ -34,13 +34,14 @@
"@jambonz/rtpengine-utils": "^0.3.1",
"@jambonz/siprec-client-utils": "^0.1.4",
"@jambonz/stats-collector": "^0.1.6",
"@jambonz/time-series": "^0.1.9",
"@jambonz/time-series": "^0.1.12",
"cidr-matcher": "^2.1.1",
"debug": "^4.3.4",
"drachtio-fn-b2b-sugar": "^0.0.12",
"drachtio-srf": "^4.5.1",
"express": "^4.18.1",
"pino": "^7.11.0"
"pino": "^7.11.0",
"sdp-transform": "^2.14.1"
},
"devDependencies": {
"bent": "^7.3.12",