object-hash
Advanced tools
Comparing version 0.8.0 to 0.9.0
@@ -1,3 +0,3 @@ | ||
| !function(e){if("object"==typeof exports)module.exports=e();else if("function"==typeof define&&define.amd)define(e);else{var t;"undefined"!=typeof window?t=window:"undefined"!=typeof global?t=global:"undefined"!=typeof self&&(t=self),t.objectHash=e()}}(function(){return function e(t,r,n){function o(u,a){if(!r[u]){if(!t[u]){var s="function"==typeof require&&require;if(!a&&s)return s(u,!0);if(i)return i(u,!0);throw new Error("Cannot find module '"+u+"'")}var f=r[u]={exports:{}};t[u][0].call(f.exports,function(e){var r=t[u][1][e];return o(r?r:e)},f,f.exports,e,t,r,n)}return r[u].exports}for(var i="function"==typeof require&&require,u=0;u<n.length;u++)o(n[u]);return o}({1:[function(e,t,r){(function(n,o,i,u,a,s,f,c,l){"use strict";function d(e,t){return t=t||{},t.algorithm=t.algorithm||"sha1",t.encoding=t.encoding||"hex",t.excludeValues=t.excludeValues?!0:!1,t.algorithm=t.algorithm.toLowerCase(),t.encoding=t.encoding.toLowerCase(),p(e,t),h(e,t)}function p(e,t){var r=y.getHashes?y.getHashes():["sha1","md5"],n=["buffer","hex","binary","base64"];if("undefined"==typeof e)throw new Error("Object argument required.");if(-1===r.indexOf(t.algorithm))throw new Error('Algorithm "'+t.algorithm+'" not supported. supported values: '+r.join(", "));if(-1===n.indexOf(t.encoding))throw new Error('Encoding "'+t.encoding+'" not supported. supported values: '+n.join(", "))}function h(e,t){var r=y.createHash(t.algorithm),n=[];return g(r,t,n).dispatch(e),"buffer"===t.encoding?r.digest():r.digest(t.encoding)}function g(e,t,r){return{dispatch:function(e){var t=typeof e,r=this["_"+t];return null===e?this._null():r(e)},_object:function(n){var o=/\[object (.*)\]/i,u=Object.prototype.toString.call(n),a=o.exec(u)[1]||"null",s=null;if(a=a.toLowerCase(),(s=r.indexOf(n))>=0)return void g(e,t,r).dispatch("[CIRCULAR]: "+s);if(r.push(n),"undefined"!=typeof i&&i.isBuffer&&i.isBuffer(n))return e.update("buffer:"),e.update(n);if("object"===a){e.update("object:");var 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| //# sourceMappingURL=object_hash.js.map |
25
index.js
@@ -13,2 +13,5 @@ 'use strict'; | ||
| * - `encoding` hash encoding, supports 'buffer', '*hex', 'binary', 'base64' | ||
| * - `respectFunctionProperties` {*true|false} consider function properties when hashing | ||
| * - `respectType` {*true|false} Respect special properties (prototype, constructor) | ||
| * when hashing to distinguish between types | ||
| * * = default | ||
@@ -30,2 +33,4 @@ * | ||
| options.encoding = options.encoding.toLowerCase(); | ||
| options.respectType = options.respectType === false ? false : true; // default to false | ||
| options.respectFunctionProperties = options.respectFunctionProperties === false ? false : true; | ||
@@ -99,4 +104,3 @@ validate(object, options); | ||
| var type = typeof value; | ||
| var func = this['_' + type]; | ||
| return (value === null) ? this._null() : func(value); | ||
| return (value === null) ? this._null() : this['_' + type](value); | ||
| }, | ||
@@ -122,3 +126,3 @@ _object: function(object) { | ||
| if(objType !== 'object') { | ||
| if(objType !== 'object' && objType !== 'function') { | ||
| if(typeHasher(hashFn, options, context)['_' + objType]) { | ||
@@ -131,4 +135,11 @@ typeHasher(hashFn, options, context)['_' + objType](object); | ||
| hashFn.update('object:'); | ||
| // TODO, add option for enumerating, for key in obj includePrototypeChain | ||
| var keys = Object.keys(object).sort(); | ||
| // Make sure to incorporate special properties, so | ||
| // Types with different prototypes will produce | ||
| // a different hash and objects derived from | ||
| // different functions (`new Foo`, `new Bar`) will | ||
| // produce different hashes. | ||
| if (options.respectType !== false) {// default to true | ||
| keys.splice(0, 0, 'prototype', '__proto__', 'constructor'); | ||
| } | ||
| return keys.forEach(function(key){ | ||
@@ -161,3 +172,7 @@ hashFn.update(key, 'utf8'); | ||
| _function: function(fn){ | ||
| return hashFn.update('fn:' + fn.toString(), 'utf8'); | ||
| hashFn.update('fn:' + fn.toString(), 'utf8'); | ||
| if (options.respectFunctionProperties) { | ||
| this._object(fn); | ||
| } | ||
| return hashFn; | ||
| }, | ||
@@ -164,0 +179,0 @@ _number: function(number){ |
| { | ||
| "name": "object-hash", | ||
| "version": "0.8.0", | ||
| "version": "0.9.0", | ||
| "description": "Generate hashes from javascript objects in node and the browser.", | ||
@@ -5,0 +5,0 @@ "homepage": "https://github.com/puleos/object-hash", |
@@ -149,3 +149,2 @@ var test = require('tape'); | ||
| var hash2 = hash('\u01c3'); // c7 83 in utf8 | ||
| console.log('!!', hash1, hash2); | ||
| assert.notEqual(hash1, hash2, "different strings with similar utf8 encodings should produce different hashes"); | ||
@@ -177,1 +176,90 @@ }); | ||
| } | ||
| test('Distinguish functions based on their properties', function(assert) { | ||
| assert.plan(3); | ||
| var a, b, c, d; | ||
| function Foo() {} | ||
| a = hash(Foo); | ||
| Foo.foo = 22; | ||
| b = hash(Foo); | ||
| Foo.bar = "42"; | ||
| c = hash(Foo); | ||
| Foo.foo = "22"; | ||
| d = hash(Foo); | ||
| assert.notEqual(a,b, 'adding a property changes the hash'); | ||
| assert.notEqual(b,c, 'adding another property changes the hash'); | ||
| assert.notEqual(c,d, 'changing a property changes the hash'); | ||
| }); | ||
| test('respectFunctionProperties = false', function(assert) { | ||
| assert.plan(1); | ||
| var a, b; | ||
| function Foo() {} | ||
| a = hash(Foo, {respectFunctionProperties: false}); | ||
| Foo.foo = 22; | ||
| b = hash(Foo, {respectFunctionProperties: false}); | ||
| assert.equal(a,b, 'function properties are ignored'); | ||
| }); | ||
| test('Distinguish functions based on prototype properties', function(assert) { | ||
| assert.plan(3); | ||
| var a, b, c, d; | ||
| function Foo() {} | ||
| a = hash(Foo); | ||
| Foo.prototype.foo = 22; | ||
| b = hash(Foo); | ||
| Foo.prototype.bar = "42"; | ||
| c = hash(Foo); | ||
| Foo.prototype.foo = "22"; | ||
| d = hash(Foo); | ||
| assert.notEqual(a,b, 'adding a property to the prototype changes the hash'); | ||
| assert.notEqual(b,c, 'adding another property to the prototype changes the hash'); | ||
| assert.notEqual(c,d, 'changing a property in the prototype changes the hash'); | ||
| }); | ||
| test('Distinguish objects based on their type', function(assert) { | ||
| assert.plan(2); | ||
| function Foo() {} | ||
| function Bar() {} | ||
| var f = new Foo(), b = new Bar(); | ||
| assert.notEqual(hash(Foo), hash(Bar), 'Functions with different names should produce a different Hash.'); | ||
| assert.notEqual(hash(f), hash(b), 'Objects with different constructor should have a different Hash.'); | ||
| }); | ||
| test('respectType = false', function(assert) { | ||
| var opt = { respectType: false }; | ||
| assert.plan(2); | ||
| function Foo() {} | ||
| function Bar() {} | ||
| var f = new Foo(), b = new Bar(); | ||
| assert.equal(hash(f, opt), hash(b, opt), 'Hashing should disregard the different constructor'); | ||
| var ha, hb; | ||
| function F() {} | ||
| ha = hash(F, opt); | ||
| F.prototype.meaningOfLife = 42; | ||
| hb = hash(F, opt); | ||
| assert.equal(ha, hb, 'Hashing should disregard changes in the function\'s prototype'); | ||
| }); |
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New alerts
New author
Supply chain riskA new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.
Found 1 instance in 1 package
Improved metrics
- Total package byte prevSize
- increased by2.35%
329539
- Number of package files
- increased by7.69%
14
- Lines of code
- increased by2.47%
6761
- Number of lines in readme file
- increased by5.2%
182
Worsened metrics
- Number of medium supply chain risk alerts
- increased byInfinity%
1
No dependency changes