multibase - npm Package Compare versions

Comparing version 1.0.1 to 2.0.0

CHANGELOG.md

@@ -0,1 +1,11 @@
+<a name="2.0.0"></a>
+# [2.0.0](https://github.com/multiformats/js-multibase/compare/v1.0.1...v2.0.0) (2020-07-24)
+
+
+### Features
+
+* accept Uint8Arrays in place of Buffers ([#61](https://github.com/multiformats/js-multibase/issues/61)) ([abc1595](https://github.com/multiformats/js-multibase/commit/abc1595))
+
+
+
 <a name="1.0.1"></a>
@@ -2,0 +12,0 @@ ## [1.0.1](https://github.com/multiformats/js-multibase/compare/v1.0.0...v1.0.1) (2020-06-18)

dist/index.min.js

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o(r[0],r[1],r[2],r[3]),t),{}),h=s.reduce((t,r)=>(t[r[1]]=a[r[0]],t),{});t.exports={names:a,codes:h}},function(t,r,e){"use strict";var n=e(10).Buffer;t.exports=function(t){if(t.length>=255)throw new TypeError("Alphabet too long");for(var r=new Uint8Array(256),e=0;e<r.length;e++)r[e]=255;for(var o=0;o<t.length;o++){var i=t.charAt(o),f=i.charCodeAt(0);if(255!==r[f])throw new TypeError(i+" is ambiguous");r[f]=o}var u=t.length,s=t.charAt(0),a=Math.log(u)/Math.log(256),h=Math.log(256)/Math.log(u);function c(t){if("string"!=typeof t)throw new TypeError("Expected String");if(0===t.length)return n.alloc(0);var e=0;if(" "!==t[e]){for(var o=0,i=0;t[e]===s;)o++,e++;for(var f=(t.length-e)*a+1>>>0,h=new Uint8Array(f);t[e];){var c=r[t.charCodeAt(e)];if(255===c)return;for(var l=0,p=f-1;(0!==c||l<i)&&-1!==p;p--,l++)c+=u*h[p]>>>0,h[p]=c%256>>>0,c=c/256>>>0;if(0!==c)throw new Error("Non-zero carry");i=l,e++}if(" "!==t[e]){for(var g=f-i;g!==f&&0===h[g];)g++;var d=n.allocUnsafe(o+(f-g));d.fill(0,0,o);for(var y=o;g!==f;)d[y++]=h[g++];return d}}}return{encode:function(r){if((Array.isArray(r)||r instanceof Uint8Array)&&(r=n.from(r)),!n.isBuffer(r))throw new TypeError("Expected Buffer");if(0===r.length)return"";for(var e=0,o=0,i=0,f=r.length;i!==f&&0===r[i];)i++,e++;for(var a=(f-i)*h+1>>>0,c=new Uint8Array(a);i!==f;){for(var l=r[i],p=0,g=a-1;(0!==l||p<o)&&-1!==g;g--,p++)l+=256*c[g]>>>0,c[g]=l%u>>>0,l=l/u>>>0;if(0!==l)throw new Error("Non-zero carry");o=p,i++}for(var d=a-o;d!==a&&0===c[d];)d++;for(var y=s.repeat(e);d<a;++d)y+=t.charAt(c[d]);return y},decodeUnsafe:c,decode:function(t){var r=c(t);if(r)return r;throw new Error("Non-base"+u+" character")}}}},function(t,r,e){"use strict";var n=e(0),o=n.Buffer;function i(t,r){for(var e in t)r[e]=t[e]}function f(t,r,e){return o(t,r,e)}o.from&&o.alloc&&o.allocUnsafe&&o.allocUnsafeSlow?t.exports=n:(i(n,r),r.Buffer=f),f.prototype=Object.create(o.prototype),i(o,f),f.from=function(t,r,e){if("number"==typeof t)throw new TypeError("Argument must not be a number");return o(t,r,e)},f.alloc=function(t,r,e){if("number"!=typeof t)throw new TypeError("Argument must be a number");var n=o(t);return void 0!==r?"string"==typeof e?n.fill(r,e):n.fill(r):n.fill(0),n},f.allocUnsafe=function(t){if("number"!=typeof t)throw new TypeError("Argument must be a number");return o(t)},f.allocUnsafeSlow=function(t){if("number"!=typeof t)throw new TypeError("Argument must be a number");return n.SlowBuffer(t)}},function(t,r,e){"use strict";const{Buffer:n}=e(0);t.exports=class{constructor(t,r,e,o){this.name=t,this.code=r,this.codeBuf=n.from(this.code),this.alphabet=o,this.engine=e(o)}encode(t){return this.engine.encode(t)}decode(t){for(const r of t)if(this.alphabet&&this.alphabet.indexOf(r)<0)throw new Error(`invalid character '${r}' in '${t}'`);return this.engine.decode(t)}}},function(t,r,e){"use strict";t.exports=t=>r=>({encode:e=>((t,r,e)=>{const n="="===r[r.length-1],o=(1<<e)-1;let i="",f=0,u=0;for(let s=0;s<t.length;++s)for(u=u<<8|t[s],f+=8;f>e;)f-=e,i+=r[o&u>>f];if(f&&(i+=r[o&u<<e-f]),n)for(;i.length*e&7;)i+="=";return i})(e,r,t),decode:e=>((t,r,e)=>{const n={};for(let a=0;a<r.length;++a)n[r[a]]=a;let o=t.length;for(;"="===t[o-1];)--o;const i=new Uint8Array(o*e/8|0);let f=0,u=0,s=0;for(let a=0;a<o;++a){const r=n[t[a]];if(void 0===r)throw new SyntaxError("Invalid character "+t[a]);u=u<<e|r,f+=e,f>=8&&(f-=8,i[s++]=255&u>>f)}if(f>=e||255&u<<8-f)throw new SyntaxError("Unexpected end of data");return i})(e,r,t)})},function(t,r,e){"use strict";r.TextEncoder=TextEncoder,r.TextDecoder=TextDecoder}])}));

package.json

 {
   "name": "multibase",
-  "version": "1.0.1",
+  "version": "2.0.0",
   "description": "JavaScript implementation of the multibase specification",
@@ -38,10 +38,8 @@ "keywords": [
     "base-x": "^3.0.8",
-    "buffer": "^5.5.0"
+    "buffer": "^5.5.0",
+    "web-encoding": "^1.0.2"
   },
   "devDependencies": {
-    "aegir": "^24.0.0",
-    "benchmark": "^2.1.4",
-    "chai": "^4.1.2",
-    "dirty-chai": "^2.0.1",
-    "pre-commit": "^1.2.2"
+    "aegir": "^25.0.0",
+    "benchmark": "^2.1.4"
   },
@@ -62,9 +60,10 @@ "engines": {
     "ᴠɪᴄᴛᴏʀ ʙᴊᴇʟᴋʜᴏʟᴍ <[e-mail]>",
-    "Carson Farmer <[e-mail]>",
     "Bora M. Alper <[e-mail]>",
+    "Irakli Gozalishvili <[e-mail]>",
     "Richard Littauer <[e-mail]>",
     "achingbrain <[e-mail]>",
     "theobat <[e-mail]>",
-    "Henrique Dias <[e-mail]>"
+    "Henrique Dias <[e-mail]>",
+    "Carson Farmer <[e-mail]>"
   ]
 }

src/base.js

@@ -0,5 +1,20 @@
+// @ts-check
 'use strict'
 const { Buffer } = require('buffer')
 
+/**
+ * @typedef {Object} Codec
+ * @property {function(Uint8Array):string} encode
+ * @property {function(string):Uint8Array} decode
+ *
+ * @typedef {function(string):Codec} CodecFactory
+ */
+
 class Base {
+  /**
+   * @param {string} name
+   * @param {string} code
+   * @param {CodecFactory} implementation
+   * @param {string} alphabet
+   */
   constructor (name, code, implementation, alphabet) {
@@ -13,2 +28,6 @@ this.name = name
 
+  /**
+   * @param {Uint8Array} buf
+   * @returns {string}
+   */
   encode (buf) {
@@ -18,2 +37,6 @@ return this.engine.encode(buf)
 
+  /**
+   * @param {string} string
+   * @returns {Uint8Array}
+   */
   decode (string) {
@@ -20,0 +43,0 @@ for (const char of string) {

src/constants.js

@@ -0,16 +1,22 @@
+// @ts-check
 'use strict'
 
 const baseX = require('base-x')
-const { Buffer } = require('buffer')
 const Base = require('./base.js')
 const rfc4648 = require('./rfc4648')
+const { decodeText, encodeText } = require('./util')
 
 const identity = () => {
   return {
-    encode: (data) => Buffer.from(data).toString(),
-    decode: (string) => Buffer.from(string)
+    encode: decodeText,
+    decode: encodeText
   }
 }
 
-// name, code, implementation, alphabet
+/**
+ * @typedef {import('./base').CodecFactory} CodecFactory
+ *
+ * name, code, implementation, alphabet
+ * @type {Array<[string, string, CodecFactory, string]>}
+ */
 const constants = [
@@ -17,0 +23,0 @@ ['identity', '\x00', identity, ''],

src/index.js

@@ -0,1 +1,2 @@
+// @ts-check
 /**
@@ -10,2 +11,3 @@ * Implementation of the [multibase](https://github.com/multiformats/multibase) specification.
 const constants = require('./constants')
+const { decodeText, asBuffer } = require('./util')
 
@@ -18,3 +20,3 @@ /** @typedef {import("./base")} Base */
  * @param {string|number} nameOrCode - The multibase name or code number.
- * @param {Buffer} buf - The data to be prefixed with multibase.
+ * @param {Uint8Array} buf - The data to be prefixed with multibase.
  * @returns {Buffer}
@@ -27,5 +29,10 @@ * @throws {Error} Will throw if the encoding is not supported
   }
-  const enc = encoding(nameOrCode)
-  validEncode(enc.name, buf)
-  return Buffer.concat([enc.codeBuf, buf])
+  const { name, codeBuf } = encoding(nameOrCode)
+  validEncode(name, buf)
+
+  const buffer = Buffer.alloc(codeBuf.length + buf.length)
+  buffer.set(codeBuf, 0)
+  buffer.set(buf, codeBuf.length)
+
+  return buffer
 }
@@ -37,3 +44,3 @@
  * @param {string|number} nameOrCode - The multibase name or code number.
- * @param {Buffer} buf - The data to be encoded.
+ * @param {Uint8Array} buf - The data to be encoded.
  * @returns {Buffer}
@@ -50,6 +57,6 @@ * @throws {Error} Will throw if the encoding is not supported
 /**
- * Takes a buffer or string encoded with multibase header, decodes it and
+ * Takes a Uint8Array or string encoded with multibase header, decodes it and
  * returns the decoded buffer
  *
- * @param {Buffer|string} data
+ * @param {Uint8Array|string} data
  * @returns {Buffer}
@@ -60,4 +67,4 @@ * @throws {Error} Will throw if the encoding is not supported
 function decode (data) {
-  if (Buffer.isBuffer(data)) {
-    data = data.toString()
+  if (ArrayBuffer.isView(data)) {
+    data = decodeText(data)
   }
@@ -71,3 +78,3 @@ const prefix = data[0]
   const enc = encoding(data[0])
-  return Buffer.from(enc.decode(data.substring(1)))
+  return asBuffer(enc.decode(data.substring(1)))
 }
@@ -78,8 +85,8 @@
  *
- * @param {Buffer|string} data
- * @returns {boolean}
+ * @param {Uint8Array|string} data
+ * @returns {false|string}
  */
 function isEncoded (data) {
-  if (Buffer.isBuffer(data)) {
-    data = data.toString()
+  if (data instanceof Uint8Array) {
+    data = decodeText(data)
   }
@@ -104,4 +111,4 @@
  * @param {string} name
- * @param {Buffer} buf
- * @returns {undefined}
+ * @param {Uint8Array} buf
+ * @returns {void}
  * @throws {Error} Will throw if the encoding is not supported
@@ -111,3 +118,3 @@ */
   const enc = encoding(name)
-  enc.decode(buf.toString())
+  enc.decode(decodeText(buf))
 }
@@ -118,3 +125,3 @@
  *
- * @param {string} nameOrCode
+ * @param {string|number} nameOrCode
  * @returns {Base}
@@ -136,3 +143,3 @@ * @throws {Error} Will throw if the encoding is not supported
  *
- * @param {string|Buffer} data
+ * @param {string|Uint8Array} data
  * @returns {Base}
@@ -142,4 +149,4 @@ * @throws {Error} Will throw if the encoding is not supported
 function encodingFromData (data) {
-  if (Buffer.isBuffer(data)) {
-    data = data.toString()
+  if (data instanceof Uint8Array) {
+    data = decodeText(data)
   }
@@ -146,0 +153,0 @@

src/rfc4648.js

@@ -0,3 +1,12 @@
+// @ts-check
 'use strict'
 
+/** @typedef {import('./base').CodecFactory} CodecFactory */
+
+/**
+ * @param {string} string
+ * @param {string} alphabet
+ * @param {number} bitsPerChar
+ * @returns {Uint8Array}
+ */
 const decode = (string, alphabet, bitsPerChar) => {
@@ -49,2 +58,8 @@ // Build the character lookup table:
 
+/**
+ * @param {Uint8Array} data
+ * @param {string} alphabet
+ * @param {number} bitsPerChar
+ * @returns {string}
+ */
 const encode = (data, alphabet, bitsPerChar) => {
@@ -84,7 +99,19 @@ const pad = alphabet[alphabet.length - 1] === '='
 
+/**
+ * @param {number} bitsPerChar
+ * @returns {CodecFactory}
+ */
 module.exports = (bitsPerChar) => (alphabet) => {
   return {
+    /**
+     * @param {Uint8Array} input
+     * @returns {string}
+     */
     encode (input) {
       return encode(input, alphabet, bitsPerChar)
     },
+    /**
+     * @param {string} input
+     * @returns {Uint8Array}
+     */
     decode (input) {
@@ -91,0 +118,0 @@ return decode(input, alphabet, bitsPerChar)

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Improved metrics

Total package byte prevSize

52614

increased by5.28%

Dev dependency count

2

decreased by-60%

Number of package files

11

increased by10%

Lines of code

361

increased by29.39%

Worsened metrics

Dependency count

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increased by50%

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increased byInfinity%

License quality

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Dependency changes

• + Addedweb-encoding@^1.0.2

• + Added@zxing/text-encoding@0.9.0(transitive)

• + Addedavailable-typed-arrays@1.0.7(transitive)

• + Addedcall-bind@1.0.7(transitive)

• + Addeddefine-data-property@1.1.4(transitive)

• + Addedes-define-property@1.0.0(transitive)

• + Addedes-errors@1.3.0(transitive)

• + Addedfor-each@0.3.3(transitive)

• + Addedfunction-bind@1.1.2(transitive)

• + Addedget-intrinsic@1.2.4(transitive)

• + Addedgopd@1.0.1(transitive)

• + Addedhas-property-descriptors@1.0.2(transitive)

• + Addedhas-proto@1.0.3(transitive)

• + Addedhas-symbols@1.0.3(transitive)

• + Addedhas-tostringtag@1.0.2(transitive)

• + Addedhasown@2.0.2(transitive)

• + Addedinherits@2.0.4(transitive)

• + Addedis-arguments@1.1.1(transitive)

• + Addedis-callable@1.2.7(transitive)

• + Addedis-generator-function@1.0.10(transitive)

• + Addedis-typed-array@1.1.13(transitive)

• + Addedpossible-typed-array-names@1.0.0(transitive)

• + Addedset-function-length@1.2.2(transitive)

• + Addedutil@0.12.5(transitive)

• + Addedweb-encoding@1.1.5(transitive)

• + Addedwhich-typed-array@1.1.15(transitive)