From 86518094a97695eaa76eb768758ae51b28c8a074 Mon Sep 17 00:00:00 2001
From: Sylvain Mina <sylvain.mina@gmail.com>
Date: Fri, 10 Jan 2025 10:49:33 +0100
Subject: [PATCH] Add support for Java archive (`.jar`) (#719)

---
 core.js             |   8 ++++++++
 fixture/fixture.jar | Bin 0 -> 2559 bytes
 package.json        |   3 ++-
 readme.md           |   1 +
 supported.js        |   2 ++
 5 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 fixture/fixture.jar

diff --git a/core.js b/core.js
index e349edea..73f6a7b3 100644
--- a/core.js
+++ b/core.js
@@ -519,6 +519,14 @@ export class FileTypeParser {
 						return {
 							stop: true,
 						};
+					case 'META-INF/MANIFEST.MF':
+						fileType = {
+							ext: 'jar',
+							mime: 'application/java-archive',
+						};
+						return {
+							stop: true,
+						};
 					case 'mimetype':
 						return {
 							async handler(fileData) {
diff --git a/fixture/fixture.jar b/fixture/fixture.jar
new file mode 100644
index 0000000000000000000000000000000000000000..948b2ea5ec61b5588fdd472a736f213b39ec293a
GIT binary patch
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diff --git a/package.json b/package.json
index 59101399..8dced6ed 100644
--- a/package.json
+++ b/package.json
@@ -233,7 +233,8 @@
 		"docm",
 		"dotm",
 		"potm",
-		"pptm"
+		"pptm",
+		"jar"
 	],
 	"dependencies": {
 		"@tokenizer/inflate": "^0.2.6",
diff --git a/readme.md b/readme.md
index 9cb86064..5c22f3f9 100644
--- a/readme.md
+++ b/readme.md
@@ -484,6 +484,7 @@ abortController.abort(); // Abort file-type reading from the Blob stream.
 - [`indd`](https://en.wikipedia.org/wiki/Adobe_InDesign#File_format) - Adobe InDesign document
 - [`it`](https://wiki.openmpt.org/Manual:_Module_formats#The_Impulse_Tracker_format_.28.it.29) - Audio module format: Impulse Tracker
 - [`j2c`](https://en.wikipedia.org/wiki/JPEG_2000) - JPEG 2000
+- [`jar`](https://en.wikipedia.org/wiki/JAR_(file_format)) - Java archive
 - [`jls`](https://en.wikipedia.org/wiki/Lossless_JPEG#JPEG-LS) - Lossless/near-lossless compression standard for continuous-tone images
 - [`jp2`](https://en.wikipedia.org/wiki/JPEG_2000) - JPEG 2000
 - [`jpg`](https://en.wikipedia.org/wiki/JPEG) - Joint Photographic Experts Group image
diff --git a/supported.js b/supported.js
index ed98dac6..54d6dcd3 100644
--- a/supported.js
+++ b/supported.js
@@ -170,6 +170,7 @@ export const extensions = [
 	'dotm',
 	'potm',
 	'pptm',
+	'jar',
 ];
 
 export const mimeTypes = [
@@ -339,4 +340,5 @@ export const mimeTypes = [
 	'application/vnd.ms-word.template.macroEnabled.12',
 	'application/vnd.ms-powerpoint.template.macroEnabled.12',
 	'application/vnd.ms-powerpoint.presentation.macroEnabled.12',
+	'application/java-archive',
 ];