HEP: Javascript/Node implementation of HEP/EEP Encapsulation Protocol
This module provides Node with HEP/EEP packet encapsulation and decapsulation capabilities.
For more information about HEP and SIPCAPTURE Projects, please visit http://sipcapture.org
npm install hep-js const HEPjs = require('hep-js'); var hep_encoder = HEPjs.encapsulate(payload,rcinfo); // returns data buffer var hep_decoder = HEPjs.decapsulate(buffer); // returns JSON Object {payload,rcinfo} ACK sip:883510000000091@domain.net SIP/2.0 Via: SIP/2.0/UDP 192.168.1.23:5060;rport;branch=z9hG4bK484759904 From: <sip:somebody@somewhere.net>;tag=412285373 To: <sip:883510000000091@domain.net>;tag=1d24a28a0bded6c40d31e6db8aab9ac6.4679 Call-ID: 1003554701 CSeq: 20 ACK Content-Length: 0 rcinfo = { type: 'HEP', version: 3, payload_type: 'SIP', captureId: '2001', capturePass: 'myHep', ip_family: 2, time_sec: 1433719443, time_usec: 979, protocol: 17, proto_type: 1, srcIp: '192.168.100.1', dstIp: '192.168.1.23', srcPort: 5060, dstPort: 5060 } var HEPjs = require('./index'); HEPjs.addVendorExtensions({ 0x0008: { 0x0080: { keyName: "conversationId" }, 0x0081: { keyName: "organizationId" }, 0x0082: { keyName: "siteId" }, 0x0083: { keyName: "trunkBaseId" }, 0x0084: { keyName: "edgeId" }, 0x0085: { keyName: "testUInt8", type: "UInt8" }, 0x0086: { keyName: "testUInt16", type: "UInt16" }, 0x0087: { keyName: "testUInt32", type: "UInt32" } } }); var hepData = { "rcinfo": { "protocolFamily": 2, "protocol": 6, "srcIp": "172.26.26.72", "dstIp": "172.26.21.185", "srcPort": 64831, "dstPort": 8060, "timeSeconds": 1592975786, "timeUseconds": 669278, "payloadType": 1, "captureId": 8, "organizationId": "3bac7742-243f-4af7-ba39-f4098b941eda", "edgeId": "268c720e-b939-4484-966d-80a1123e3810", "conversationId": "", "siteId": "", "trunkBaseId": "", "testUInt8": 5, "testUInt16": 10, "testUInt32": 20 }, "payload": "INVITE sip:BellUser2@172.26.21.185:8060;transport=tls SIP/2.0\r\nTo: <sip:BellUser2@172.26.21.185:8060>\r\nFrom: <sip:BellStation1@172.26.21.185:8060>;tag=974329\r\ncall-id: 3935064a-294e-44d8-930d-1a87b90515bb\r\nCSeq: 1 INVITE\r\nallow-events: conference, talk, hold\r\nContact: <sip:BellStation1@172.26.26.72:5061;transport=tls>\r\nx-phonesim-proxy-type: primary\r\ncontent-type: application/sdp\r\nx-edge-id: 268c720e-b939-4484-966d-80a1123e3810\r\nx-edge-name: qf-bell\r\nx-test-id: Station2Station\r\nx-test-name: Station to Station Keyword Test\r\nUser-Agent: PolycomSoundPointIP-SPIP_450-UA/4.0.10.0689_000025CC0001\r\nx-phonesim: 1.0.0-534\r\ncontent-length: 567\r\nVia: SIP/2.0/TLS qf-lempel:5060;branch=z9hG4bK416647af6e43448b8fc9c8b804713a0e\r\n\r\nv=0\r\no=- 4056025290 3801964586 IN IP4 172.26.26.72\r\ns= \r\nt=0 0\r\na=group:ANAT 1 2\r\nm=audio 20522 RTP/SAVP 0 8 9 101\r\nc=IN IP4 172.26.26.72\r\na=mid:1\r\na=rtpmap:101 telephone-event/8000\r\na=fmtp:101 0-15\r\na=crypto:1 AES_CM_256_HMAC_SHA1_80 inline:ba6DaKfQLSQQbYNMtL1ng2xCVbJuihEgzeajdEWIHT4qGpfrPwuTMDIasyhSOA\r\na=sendrecv\r\nm=audio 23824 RTP/SAVP 0 8 9 101\r\nc=IN IP6 2620:102:c000:f10:d::6050\r\na=mid:2\r\na=rtpmap:101 telephone-event/8000\r\na=fmtp:101 0-15\r\na=crypto:1 AES_CM_256_HMAC_SHA1_80 inline:ba6DaKfQLSQQbYNMtL1ng2xCVbJuihEgzeajdEWIHT4qGpfrPwuTMDIasyhSOA\r\na=sendrecv\r\n" }; var hepBuf = HEPjs.encapsulate(hepData.payload, hepData.rcinfo); console.log(JSON.stringify(HEPjs.decapsulate(hepBuf), undefined, 2)); // Output: // { // "rcinfo": { // "protocolFamily": 2, // "protocol": 6, // "srcIp": "172.26.26.72", // "dstIp": "172.26.21.185", // "srcPort": 64831, // "dstPort": 8060, // "timeSeconds": 1592975786, // "timeUseconds": 669278, // "payloadType": 1, // "captureId": 8, // "hepNodeName": "8", // "conversationId": "", // "organizationId": "3bac7742-243f-4af7-ba39-f4098b941eda", // "siteId": "", // "trunkBaseId": "", // "edgeId": "268c720e-b939-4484-966d-80a1123e3810", // "testUInt8": 5, // "testUInt16": 10, // "testUInt32": 20 // }, // "payload": "INVITE sip:BellUser2@172.26.21.185:8060;transport=tls SIP/2.0\r\nTo: <sip:BellUser2@172.26.21.185:8060>\r\nFrom: <sip:BellStation1@172.26.21.185:8060>;tag=974329\r\ncall-id: 3935064a-294e-44d8-930d-1a87b90515bb\r\nCSeq: 1 INVITE\r\nallow-events: conference, talk, hold\r\nContact: <sip:BellStation1@172.26.26.72:5061;transport=tls>\r\nx-phonesim-proxy-type: primary\r\ncontent-type: application/sdp\r\nx-edge-id: 268c720e-b939-4484-966d-80a1123e3810\r\nx-edge-name: qf-bell\r\nx-test-id: Station2Station\r\nx-test-name: Station to Station Keyword Test\r\nUser-Agent: PolycomSoundPointIP-SPIP_450-UA/4.0.10.0689_000025CC0001\r\nx-phonesim: 1.0.0-534\r\ncontent-length: 567\r\nVia: SIP/2.0/TLS qf-lempel:5060;branch=z9hG4bK416647af6e43448b8fc9c8b804713a0e\r\n\r\nv=0\r\no=- 4056025290 3801964586 IN IP4 172.26.26.72\r\ns= \r\nt=0 0\r\na=group:ANAT 1 2\r\nm=audio 20522 RTP/SAVP 0 8 9 101\r\nc=IN IP4 172.26.26.72\r\na=mid:1\r\na=rtpmap:101 telephone-event/8000\r\na=fmtp:101 0-15\r\na=crypto:1 AES_CM_256_HMAC_SHA1_80 inline:ba6DaKfQLSQQbYNMtL1ng2xCVbJuihEgzeajdEWIHT4qGpfrPwuTMDIasyhSOA\r\na=sendrecv\r\nm=audio 23824 RTP/SAVP 0 8 9 101\r\nc=IN IP6 2620:102:c000:f10:d::6050\r\na=mid:2\r\na=rtpmap:101 telephone-event/8000\r\na=fmtp:101 0-15\r\na=crypto:1 AES_CM_256_HMAC_SHA1_80 inline:ba6DaKfQLSQQbYNMtL1ng2xCVbJuihEgzeajdEWIHT4qGpfrPwuTMDIasyhSOA\r\na=sendrecv\r\n" // }