dns-packet - npm Package Compare versions

Comparing version 5.3.1 to 5.4.0

index.js

@@ -1297,2 +1297,61 @@ 'use strict'
 
+const rsshfp = exports.sshfp = {}
+
+rsshfp.getFingerprintLengthForHashType = function getFingerprintLengthForHashType (hashType) {
+  switch (hashType) {
+    case 1: return 20
+    case 2: return 32
+  }
+}
+
+rsshfp.encode = function encode (record, buf, offset) {
+  if (!buf) buf = Buffer.alloc(rsshfp.encodingLength(record))
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  offset += 2 // The function call starts with the offset pointer at the RDLENGTH field, not the RDATA one
+  buf[offset] = record.algorithm
+  offset += 1
+  buf[offset] = record.hash
+  offset += 1
+
+  const fingerprintBuf = Buffer.from(record.fingerprint.toUpperCase(), 'hex')
+  if (fingerprintBuf.length !== rsshfp.getFingerprintLengthForHashType(record.hash)) {
+    throw new Error('Invalid fingerprint length')
+  }
+  fingerprintBuf.copy(buf, offset)
+  offset += fingerprintBuf.byteLength
+
+  rsshfp.encode.bytes = offset - oldOffset
+  buf.writeUInt16BE(rsshfp.encode.bytes - 2, oldOffset)
+
+  return buf
+}
+
+rsshfp.encode.bytes = 0
+
+rsshfp.decode = function decode (buf, offset) {
+  if (!offset) offset = 0
+  const oldOffset = offset
+
+  const record = {}
+  offset += 2 // Account for the RDLENGTH field
+  record.algorithm = buf[offset]
+  offset += 1
+  record.hash = buf[offset]
+  offset += 1
+
+  const fingerprintLength = rsshfp.getFingerprintLengthForHashType(record.hash)
+  record.fingerprint = buf.slice(offset, offset + fingerprintLength).toString('hex').toUpperCase()
+  offset += fingerprintLength
+  rsshfp.decode.bytes = offset - oldOffset
+  return record
+}
+
+rsshfp.decode.bytes = 0
+
+rsshfp.encodingLength = function (record) {
+  return 4 + Buffer.from(record.fingerprint, 'hex').byteLength
+}
+
 const renc = exports.record = function (type) {
@@ -1319,2 +1378,3 @@ switch (type.toUpperCase()) {
     case 'NSEC3': return rnsec3
+    case 'SSHFP': return rsshfp
     case 'DS': return rds
@@ -1321,0 +1381,0 @@ }

package.json

 {
   "name": "dns-packet",
-  "version": "5.3.1",
+  "version": "5.4.0",
   "description": "An abstract-encoding compliant module for encoding / decoding DNS packets",
@@ -29,3 +29,2 @@ "author": "Mathias Buus",
     "eslint-plugin-standard": "^4.0.0",
-    "nyc": "^13.3.0",
     "tape": "^4.10.1"
@@ -32,0 +31,0 @@ },

README.md

 # dns-packet
-[![](https://img.shields.io/npm/v/dns-packet.svg?style=flat)](https://www.npmjs.org/package/dns-packet) [![](https://img.shields.io/npm/dm/dns-packet.svg)](https://www.npmjs.org/package/dns-packet) [![](https://api.travis-ci.org/mafintosh/dns-packet.svg?style=flat)](https://travis-ci.org/mafintosh/dns-packet) [![Coverage Status](https://coveralls.io/repos/github/mafintosh/dns-packet/badge.svg?branch=master)](https://coveralls.io/github/mafintosh/dns-packet?branch=master)
+[![](https://img.shields.io/npm/v/dns-packet.svg?style=flat)](https://www.npmjs.org/package/dns-packet) [![](https://img.shields.io/npm/dm/dns-packet.svg)](https://www.npmjs.org/package/dns-packet) [![](https://github.com/github/mafintosh/dns-packet/workflows/ci.yml/badge.svg)](https://github.com/github/mafintosh/dns-packet/workflows/ci.yml) [![Coverage Status](https://coveralls.io/repos/github/mafintosh/dns-packet/badge.svg?branch=master)](https://coveralls.io/github/mafintosh/dns-packet?branch=master)
 
@@ -305,2 +305,12 @@ An [abstract-encoding](https://github.com/mafintosh/abstract-encoding) compliant module for encoding / decoding DNS packets. Lifted out of [multicast-dns](https://github.com/mafintosh/multicast-dns) as a separate module.
 
+#### `SSHFP`
+
+``` js
+{
+  algorithm: 1,
+  hash: 1,
+  fingerprint: 'A108C9F834354D5B37AF988141C9294822F5BC00'
+}
+````
+
 #### `RRSIG`
@@ -307,0 +317,0 @@

No alert changes

Improved metrics

Total package byte prevSize

57029

increased by1.45%

Dev dependency count

7

decreased by-12.5%

Lines of code

1576

increased by3.07%

Number of lines in readme file

376

increased by2.73%

Worsened metrics

Number of package files

9

decreased by-10%

No dependency changes