is-apng - npm Package Compare versions

Comparing version 1.1.3 to 1.2.0

dist/index.js

@@ -1,1 +0,1 @@
-(function(n,t){typeof exports=="object"&&typeof module<"u"?module.exports=t():typeof define=="function"&&define.amd?define(t):(n=typeof globalThis<"u"?globalThis:n||self,n.isApng=t())})(this,function(){"use strict";const n=new TextEncoder,t={animationControlChunk:n.encode("acTL"),imageDataChunk:n.encode("IDAT")};function a(e){if(!e||!(typeof Buffer<"u"&&Buffer.isBuffer(e)||e instanceof Uint8Array)||e.length<16||!(e[0]===137&&e[1]===80&&e[2]===78&&e[3]===71&&e[4]===13&&e[5]===10&&e[6]===26&&e[7]===10))return!1;e=e.subarray(8);let o=0,u=0;for(let i=0;i<e.length;i++){if(e[i]!==t.animationControlChunk[o]&&(o=0),e[i]===t.animationControlChunk[o]&&(o++,o===t.animationControlChunk.length))return!0;if(e[i]!==t.imageDataChunk[u]&&(u=0),e[i]===t.imageDataChunk[u]&&(u++,u===t.imageDataChunk.length))return!1}return!1}return a});
+(function(o,r){typeof exports=="object"&&typeof module<"u"?module.exports=r():typeof define=="function"&&define.amd?define(r):(o=typeof globalThis<"u"?globalThis:o||self,o.isApng=r())})(this,function(){"use strict";function o(e){return e.reduce((i,n)=>(i<<8)+n)}function r(e,i,n=4){for(;n>0;)if(n--,e[n]!==i[n])return!1;return!0}const t={SIGNATURE:8,LENGTH:4,TYPE:4,CRC:4},u={signature:[137,80,78,71,13,10,26,10],animationControl:[97,99,84,76],imageData:[73,68,65,84]};function a(e){const i=t.LENGTH+t.TYPE+t.CRC;if(!e||!(e instanceof Uint8Array)||e.length<t.SIGNATURE+i||!r(e,u.signature,t.SIGNATURE))return!1;for(e=e.subarray(t.SIGNATURE);e.length>=i;){const n=e.subarray(t.LENGTH,t.LENGTH+t.TYPE);if(r(n,u.animationControl,t.TYPE))return!0;if(r(n,u.imageData,t.TYPE))return!1;const f=i+o(e.subarray(0,t.LENGTH));e=e.subarray(f)}return!1}return a});

package.json

 {
   "name": "is-apng",
-  "version": "1.1.3",
+  "version": "1.2.0",
   "description": "Check if a Buffer/Uint8Array is a APNG (Animated PNG) image",
@@ -70,3 +70,3 @@ "license": "MIT",
   "engines": {
-    "node": ">=14"
+    "node": ">=18"
   },
@@ -73,0 +73,0 @@ "scripts": {

readme.md

 # is-apng   [![Latest GitHub release][release-image]][release-url] [![Latest NPM version][npm-image]][npm-url] [![Build Status][ci-image]][ci-url]
 
-> Check if a Buffer/Uint8Array is a [Animated PNG / APNG](https://en.wikipedia.org/wiki/APNG) image
+> Checks if a Buffer/Uint8Array contains a [Animated PNG / APNG](https://en.wikipedia.org/wiki/APNG) image.
 
+> [!IMPORTANT]
+> This is _only_ a quick detect method and does not do full (A)PNG file validation.<br>
+> For security and file integrity sensitive operations, use a true (A)PNG validator (see also [specs](https://www.w3.org/TR/png/)).
+
 ## Install
@@ -24,2 +28,3 @@
 ```
+<sup>_Note: As of version 1.2, Node versions below 18 are not supported._</sup>
 
@@ -43,3 +48,3 @@ ### Browser &nbsp;<img src="./src/chrome.svg" alt="Chrome" title="Chrome" style="margin-bottom:-0.15em"> <img src="./src/edge.svg" alt="Edge" title="Edge" style="margin-bottom:-0.15em"> <img src="./src/firefox.svg" alt="Firefox" title="Firefox" style="margin-bottom:-0.15em"> <img src="./src/safari.svg" alt="Safari" title="Safari" style="margin-bottom:-0.15em"> <img src="./src/opera.svg" alt="Opera" title="Opera" style="margin-bottom:-0.15em">
 Url for latest version: `https://unpkg.com/is-apng`<br>
-Url for specific version: `https://unpkg.com/is-apng@1.1.3/dist/index.js`
+Url for specific version: `https://unpkg.com/is-apng@1.2.0/dist/index.js`
 
@@ -58,3 +63,3 @@ ```html
 Url for latest version: `https://unpkg.com/is-apng/dist/index.mjs`<br>
-Url for specific version: `https://unpkg.com/is-apng@1.1.3/dist/index.mjs`
+Url for specific version: `https://unpkg.com/is-apng@1.2.0/dist/index.mjs`
 
@@ -61,0 +66,0 @@ ```html

No alert changes

Improved metrics

Total package byte prevSize

13986

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Number of lines in readme file

133

3.91%

No dependency changes