base64-image-mime - npm Package Compare versions

Comparing version 1.0.0 to 1.0.1

index.js

 const atob = require('atob')
-const jpegTypes = ["jpg", "jpeg", "jfif", "pjpeg", "pjp"]
 const mimeTypes = {
@@ -15,3 +14,3 @@ png: 'image/png',
 
-function getImageMime(base64Encoded) {
+function getImageMime (base64Encoded) {
   if (base64Encoded.startsWith('data:')) {
@@ -24,2 +23,4 @@ const found = base64Encoded.match(/(?<=data:)\S*(?=;base64)/g)
     if (!found) {
+      const hex = Buffer.from(base64Encoded, 'base64').toString('hex')
+      if (hex.startsWith('ffd8ff')) return mimeTypes.jpeg
       return null
@@ -33,5 +34,4 @@ } else {
 
-
 module.exports = {
   getImageMime: getImageMime
-}
+}

index.test.js

 const { getImageMime } = require('./index')
 
 const randomStr = 'dafkqlwjelkqwje'
-const png = 'iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAACGFjVEwAAAAUAAAAABwt8VIAAAAaZmNUTAAAAAAAAABkAAAAZAAAAAAAAAAAAEsD6AEAzUsGtwAAEhFJREFUeNrtmwuMHVd5x3';
+const png = 'iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAYAAABw4pVUAAAACGFjVEwAAAAUAAAAABwt8VIAAAAaZmNUTAAAAAAAAABkAAAAZAAAAAAAAAAAAEsD6AEAzUsGtwAAEhFJREFUeNrtmwuMHVd5x3'
 const webp =
-  'UklGRnq0AABXRUJQVlA4IG60AABQpgKdASoCA9gAPm0qkUYkIiGhL1Tt+IANiWgAtopAV39UO6z5/+c/cH8sPlU5B7RPgH3n/L/9n2jdenYfmEdOfp/2if7/1p/0b/X+xD/Rv8P+0Xrx/uZ79f3d9Wf7nep5/2f3b+A39I9Un+tf6z//9l/6Vvm0f/D2mv7B/2fTc0zX7j43fsfWv+mfd/8r/D/6D1G/';
+  'UklGRnq0AABXRUJQVlA4IG60AABQpgKdASoCA9gAPm0qkUYkIiGhL1Tt+IANiWgAtopAV39UO6z5/+c/cH8sPlU5B7RPgH3n/L/9n2jdenYfmEdOfp/2if7/1p/0b/X+xD/Rv8P+0Xrx/uZ79f3d9Wf7nep5/2f3b+A39I9Un+tf6z//9l/6Vvm0f/D2mv7B/2fTc0zX7j43fsfWv+mfd/8r/D/6D1G/'
 const jpeg =
-  "/9j/4AAQSkZJRgABAQEAYABgAAD/4QBmRXhpZgAATU0AKgAAAAgABgESAAMAAAABAAEAAAMBAAUAAAABAAAAVgMDAAEAAAABAAAAAFEQAAEAAAABAQAAAFERAAQAAAABAAAOw1ESAAQAAAABA";
+  '/9j/4AAQSkZJRgABAQEAYABgAAD/4QBmRXhpZgAATU0AKgAAAAgABgESAAMAAAABAAEAAAMBAAUAAAABAAAAVgMDAAEAAAABAAAAAFEQAAEAAAABAQAAAFERAAQAAAABAAAOw1ESAAQAAAABA'
 const gif =
-  "R0lGODlhsASvBPcAAAQBAQ0MDAsGBBIODBUIBRQRDhoTDg4OERIOERQUFRoVFBsZFhYWGBkXGRsbHBYZGwoSFyIdGyQaFi0UD";
+  'R0lGODlhsASvBPcAAAQBAQ0MDAsGBBIODBUIBRQRDhoTDg4OERIOERQUFRoVFBsZFhYWGBkXGRsbHBYZGwoSFyIdGyQaFi0UD'
 const prefixPng = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgA'
 const prefixJpeg = 'data:image/jpeg;base64,/9j/4AAQSkZJRgABAQEAYABgAAD/'
 const prefixGif = 'data:image/gif;base64,R0lGODlh4AHgAfcBMQDO9wD/AAECAQHlyQL2mQM3EgSLUAfO6QkIBwu78g8NDQ8fGRAKBhAPEhQTEhcWFxcaGRkYGBkZGRwXFh4dGx4dIB8jbh/CjyAeHSDumiFolCIeHSKJiiMjKiMuTSQcGSS+vCYkIief7ygcGCgoLClKXiolIissNC0WES0mIy4qKi'
-
+const hexTestJpeg = '/9j/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgk'
 test('return null on non base64', () => {
-  expect(getImageMime(randomStr)).toBe(null);
-});
+  expect(getImageMime(randomStr)).toBe(null)
+})
 
 test('parse png success', () => {
-  expect(getImageMime(png)).toBe('image/png');
-  expect(getImageMime(prefixPng)).toBe('image/png');
-});
+  expect(getImageMime(png)).toBe('image/png')
+  expect(getImageMime(prefixPng)).toBe('image/png')
+})
 
 test('parse webp success', () => {
-  expect(getImageMime(webp)).toBe('image/webp');
-});
+  expect(getImageMime(webp)).toBe('image/webp')
+})
 
 test('parse gif success', () => {
-  expect(getImageMime(gif)).toBe('image/gif');
-  expect(getImageMime(prefixGif)).toBe('image/gif');
-});
+  expect(getImageMime(gif)).toBe('image/gif')
+  expect(getImageMime(prefixGif)).toBe('image/gif')
+})
 
 test('parse jpeg success', () => {
-  expect(getImageMime(jpeg)).toBe('image/jpeg');
-  expect(getImageMime(prefixJpeg)).toBe('image/jpeg');
-});
+  expect(getImageMime(jpeg)).toBe('image/jpeg')
+  expect(getImageMime(hexTestJpeg)).toBe('image/jpeg')
+  expect(getImageMime(prefixJpeg)).toBe('image/jpeg')
+})

package.json

 {
   "name": "base64-image-mime",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "Get mimetype from base64-encoded images",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

 # Base64-image-mime
 
 ## A small utility to get mimetype from base64-encoded images
-
-### Currently support:
+[![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)
+### Currently support mime-type:
 - image/png
@@ -12,5 +12,13 @@ - image/gif
 
-Works for with prefix & without prefix base64 encoded image
 
+### Installation
+```
+npm install base64-image-mime
+
+// or with yarn
+
+yarn add base64-image-mime
+```
 ### Usage
+Can detect both with prefix & without prefix base64 encoded image
 ```js
@@ -17,0 +25,0 @@ const { getImageMime } = require('base64-image-mime')

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Minified code

Quality

This package contains minified code. This may be harmless in some cases where minified code is included in packaged libraries, however packages on npm should not minify code.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

6177

increased by34.4%

Number of package files

5

increased by25%

Lines of code

71

increased by20.34%

Number of lines in readme file

48

increased by20%

Worsened metrics

Number of low quality alerts

1

increased byInfinity%

Number of low supply chain risk alerts

1

increased byInfinity%

No dependency changes