From 1899fc123405bb9f29f270da66f1ba8ae6bae4c0 Mon Sep 17 00:00:00 2001
From: Daniel Freire <dcfreire77@gmail.com>
Date: Tue, 25 Apr 2023 02:30:51 -0300
Subject: [PATCH] Add support for ACE (#592)

---
 core.d.ts           |   2 ++
 core.js             |  10 ++++++++++
 fixture/fixture.ace | Bin 0 -> 97 bytes
 package.json        |   3 ++-
 readme.md           |   1 +
 supported.js        |   2 ++
 6 files changed, 17 insertions(+), 1 deletion(-)
 create mode 100644 fixture/fixture.ace

diff --git a/core.d.ts b/core.d.ts
index 1b340fb1..9dcf2299 100644
--- a/core.d.ts
+++ b/core.d.ts
@@ -148,6 +148,7 @@ export type FileExtension =
 	| 'class'
 	| 'arj'
 	| 'cpio'
+	| 'ace'
 	; // eslint-disable-line semi-style
 
 export type MimeType =
@@ -292,6 +293,7 @@ export type MimeType =
 	| 'application/java-vm'
 	| 'application/x-arj'
 	| 'application/x-cpio'
+	| 'application/x-ace-compressed'
 	; // eslint-disable-line semi-style
 
 export type FileTypeResult = {
diff --git a/core.js b/core.js
index e2c94e7b..2df59ae6 100644
--- a/core.js
+++ b/core.js
@@ -1020,6 +1020,16 @@ class FileTypeParser {
 			};
 		}
 
+		if (this.checkString('**ACE', {offset: 7})) {
+			await tokenizer.peekBuffer(this.buffer, {length: 14, mayBeLess: true});
+			if (this.checkString('**', {offset: 12})) {
+				return {
+					ext: 'ace',
+					mime: 'application/x-ace-compressed',
+				};
+			}
+		}
+
 		// -- 8-byte signatures --
 
 		if (this.check([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A])) {
diff --git a/fixture/fixture.ace b/fixture/fixture.ace
new file mode 100644
index 0000000000000000000000000000000000000000..92ab1e5b8113fbfbd32e72f9f4893994b51f771c
GIT binary patch
literal 97
zcmZ4T-;jZUVS<*HqqD1)mWT)w!^s)-VSeYguK)@&h-roT1-ZI=28Xx?xw<HXxdsJ$
r`uk~pDb-+LWCSSygS|i<3P9F>AYfqTVhC~NWJt{|D5=ydsVD&e8X_Aw

literal 0
HcmV?d00001

diff --git a/package.json b/package.json
index 0b390b06..83f90021 100644
--- a/package.json
+++ b/package.json
@@ -200,7 +200,8 @@
 		"parquet",
 		"class",
 		"arj",
-		"cpio"
+		"cpio",
+		"ace"
 	],
 	"dependencies": {
 		"readable-web-to-node-stream": "^3.0.2",
diff --git a/readme.md b/readme.md
index 3ae0cb9d..a80f377e 100644
--- a/readme.md
+++ b/readme.md
@@ -344,6 +344,7 @@ Returns a `Set<string>` of supported MIME types.
 - [`Z`](https://fileinfo.com/extension/z) - Unix Compressed File
 - [`aac`](https://en.wikipedia.org/wiki/Advanced_Audio_Coding) - Advanced Audio Coding
 - [`ac3`](https://www.atsc.org/standard/a522012-digital-audio-compression-ac-3-e-ac-3-standard-12172012/) - ATSC A/52 Audio File
+- [`ace`](https://en.wikipedia.org/wiki/ACE_(compressed_file_format)) - ACE archive
 - [`ai`](https://en.wikipedia.org/wiki/Adobe_Illustrator_Artwork) - Adobe Illustrator Artwork
 - [`aif`](https://en.wikipedia.org/wiki/Audio_Interchange_File_Format) - Audio Interchange file
 - [`alias`](https://en.wikipedia.org/wiki/Alias_%28Mac_OS%29) - macOS Alias file
diff --git a/supported.js b/supported.js
index 083c9363..4b7f41d8 100644
--- a/supported.js
+++ b/supported.js
@@ -145,6 +145,7 @@ export const extensions = [
 	'class',
 	'arj',
 	'cpio',
+	'ace',
 ];
 
 export const mimeTypes = [
@@ -289,4 +290,5 @@ export const mimeTypes = [
 	'application/java-vm',
 	'application/x-arj',
 	'application/x-cpio',
+	'application/x-ace-compressed',
 ];