multicodec - npm Package Compare versions

Comparing version 0.1.0 to 0.1.1

package.json

 {
   "name": "multicodec",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "JavaScript implementation of the multicodec-packed specification",
@@ -46,3 +46,3 @@ "main": "lib/index.js",
   "devDependencies": {
-    "aegir": "^8.1.1",
+    "aegir": "^9.1.2",
     "chai": "^3.5.0",
@@ -53,4 +53,6 @@ "pre-commit": "^1.1.3"
     "David Dias <[e-mail]>",
-    "Richard Littauer <[e-mail]>"
+    "Richard Littauer <[e-mail]>",
+    "kumavis <[e-mail]>",
+    "wanderer <[e-mail]>"
   ]
 }

src/base-table.js

 'use strict'
 
-const varint = require('varint')
-
 // spec and table at: https://github.com/multiformats/multicodec
 
-// TODO revisit all of these once https://github.com/multiformats/multicodec/pull/16 is merged
-
 exports = module.exports
 
 // Miscellaneous
-exports.raw = varintBuf(0)          // 0x00
+exports['raw'] = new Buffer('00', 'hex')
 
 // bases encodings
+exports['base1'] = new Buffer('01', 'hex')
+exports['base2'] = new Buffer('55', 'hex')
+exports['base8'] = new Buffer('07', 'hex')
+exports['base10'] = new Buffer('09', 'hex')
 
 // Serialization formats
-exports.protobuf = varintBuf(80)    // 0x50
-exports.cbor = varintBuf(81)        // 0x51
-exports.rlp = varintBuf(96)         // 0x60
+exports['protobuf'] = new Buffer('50', 'hex')
+exports['cbor'] = new Buffer('51', 'hex')
+exports['rlp'] = new Buffer('60', 'hex')
 
 // Multiformats
-exports.multicodec = varintBuf(64)  // 0x40
-exports.multihash = varintBuf(65)   // 0x41
-exports.multiaddr = varintBuf(66)   // 0x42
+exports['multicodec'] = new Buffer('30', 'hex')
+exports['multihash'] = new Buffer('31', 'hex')
+exports['multiaddr'] = new Buffer('32', 'hex')
+exports['multibase'] = new Buffer('33', 'hex')
 
 // multihashes
+exports['sha1'] = new Buffer('11', 'hex')
+exports['sha2-256'] = new Buffer('12', 'hex')
+exports['sha2-512'] = new Buffer('13', 'hex')
+exports['sha3-224'] = new Buffer('17', 'hex')
+exports['sha3-256'] = new Buffer('16', 'hex')
+exports['sha3-384'] = new Buffer('15', 'hex')
+exports['sha3-512'] = new Buffer('14', 'hex')
+exports['shake-128'] = new Buffer('18', 'hex')
+exports['shake-256'] = new Buffer('19', 'hex')
+exports['keccak-224'] = new Buffer('1a', 'hex')
+exports['keccak-256'] = new Buffer('1b', 'hex')
+exports['keccak-384'] = new Buffer('1c', 'hex')
+exports['keccak-512'] = new Buffer('1d', 'hex')
+exports['blake2b'] = new Buffer('40', 'hex')
+exports['blake2s'] = new Buffer('41', 'hex')
 
 // multiaddrs
+exports['ip4'] = new Buffer('04', 'hex')
+exports['ip6'] = new Buffer('29', 'hex')
+exports['tcp'] = new Buffer('06', 'hex')
+exports['udp'] = new Buffer('0111', 'hex')
+exports['dccp'] = new Buffer('21', 'hex')
+exports['sctp'] = new Buffer('84', 'hex')
+exports['udt'] = new Buffer('012d', 'hex')
+exports['utp'] = new Buffer('012e', 'hex')
+exports['ipfs'] = new Buffer('2a', 'hex')
+exports['http'] = new Buffer('01e0', 'hex')
+exports['https'] = new Buffer('01bb', 'hex')
+exports['ws'] = new Buffer('01dd', 'hex')
+exports['onion'] = new Buffer('01bc', 'hex')
 
@@ -43,5 +72,6 @@ // archiving formats
 exports['eth-tx'] = new Buffer('91', 'hex')
-
-function varintBuf (n) {
-  return new Buffer(varint.encode(n))
-}
+exports['eth-account'] = new Buffer('92', 'hex')
+exports['bitcoin-block'] = new Buffer('b0', 'hex')
+exports['bitcoin-tx'] = new Buffer('b1', 'hex')
+exports['stellar-block'] = new Buffer('d0', 'hex')
+exports['stellar-tx'] = new Buffer('d1', 'hex')

src/index.js

 'use strict'
-
-const table = require('./base-table')
 const varint = require('varint')
+const codecNameToCodeVarint = require('./varint-table')
+const codeToCodecName = require('./name-table')
+const util = require('./util')
 
@@ -9,9 +10,9 @@ exports = module.exports
 exports.addPrefix = (multicodecStrOrCode, data) => {
-  let pfx
+  let prefix
 
   if (Buffer.isBuffer(multicodecStrOrCode)) {
-    pfx = multicodecStrOrCode
+    prefix = util.varintBufferEncode(multicodecStrOrCode)
   } else {
-    if (table[multicodecStrOrCode]) {
-      pfx = table[multicodecStrOrCode]
+    if (codecNameToCodeVarint[multicodecStrOrCode]) {
+      prefix = codecNameToCodeVarint[multicodecStrOrCode]
     } else {
@@ -21,3 +22,3 @@ throw new Error('multicodec not recognized')
   }
-  return Buffer.concat([pfx, data])
+  return Buffer.concat([prefix, data])
 }
@@ -31,14 +32,6 @@
 exports.getCodec = (prefixedData) => {
-  const v = varint.decode(prefixedData)
-  const code = new Buffer(v.toString(16), 'hex')
-  let codec
+  const code = util.varintBufferDecode(prefixedData)
+  const codecName = codeToCodecName[code.toString('hex')]
+  return codecName
+}
 
-  Object.keys(table)
-        .forEach((mc) => {
-          if (code.equals(table[mc])) {
-            codec = mc
-          }
-        })
-
-  return codec
-}

New alerts

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Improved metrics

Number of package files

16

increased by23.08%

Worsened metrics

Total package byte prevSize

196951

decreased by-78.81%

Lines of code

2370

decreased by-76.36%

Number of medium supply chain risk alerts

1

increased byInfinity%

No dependency changes