Add support for PGP (#367)

Co-authored-by: Sindre Sorhus <sindresorhus@gmail.com>
sindresorhus · Jun 2, 2020 · 4a851af · 4a851af
1 parent b977dc4
commit 4a851af
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Showing 6 changed files with 32 additions and 5 deletions.
diff --git a/core.d.ts b/core.d.ts
@@ -133,7 +133,8 @@ declare namespace core {
 		| 'skp'
 		| 'avif'
 		| 'eps'
-		| 'lzh';
+		| 'lzh'
+		| 'pgp';
 
 	type MimeType =
 		| 'image/jpeg'
@@ -258,7 +259,8 @@ declare namespace core {
 		| 'video/MP2P'
 		| 'application/vnd.sketchup.skp'
 		| 'image/avif'
-		| 'application/x-lzh-compressed';
+		| 'application/x-lzh-compressed'
+		| 'application/pgp-encrypted';
 
 	interface FileTypeResult {
 		/**

diff --git a/core.js b/core.js
@@ -1282,6 +1282,13 @@ async function _fromTokenizer(tokenizer) {
 		};
 	}
 
+	if (checkString('-----BEGIN PGP MESSAGE-----')) {
+		return {
+			ext: 'pgp',
+			mime: 'application/pgp-encrypted'
+		};
+	}
+
 	// Check for MPEG header at different starting offsets
 	for (let start = 0; start < 2 && start < (buffer.length - 16); start++) {
 		// Check MPEG 1 or 2 Layer 3 header, or 'layer 0' for ADTS (MPEG sync-word 0xFFE)

diff --git a/fixture/fixture.pgp b/fixture/fixture.pgp
@@ -0,0 +1,14 @@
+-----BEGIN PGP MESSAGE-----
+Version: OpenPGP.js v3.0.9
+Comment: https://openpgpjs.org
+
+wcBMA5C5XtMJioU5AQf/VlCbKDYaUD2UaAVVM4jJqktfYkNjxfGAzzJps+0e
+mfkkG4Ax5GJWHC0q5I3PKXlqSESpqooARa5bYZ1wt5iqEYPbUkt1csbsnXlZ
+X1EHwZb9YYmQBEJSjOyA49jwpeetaEt//VvIlFPHp4a7QnYePSa3gH1DsKkM
+NG/cZjZoh/ik5yAPD56w1/Ym+RP0y11lwpWxbpfq0iyu5RbUekD9cgXAnCvP
+G29Sqt8H3C299v2dbp3utRSf+bS/ERra6XVipWjjxfkD2tgrruFIERSAGQX1
+FPvS6ztH0301hUEXeA7cA4OuGK5sgbBeiRoSHE/DdbTeLiRIxbW01rqIXxzz
+ItJRAby+866YRBJnl/vvauszUFNz9JpV2ZS5c+weELrkPBlUuaV0CieLkwIn
+T318njOQ+cnW1cpxWPaiK/qSCBaIc6sOiVhLL4wRePu2FRe47mC4
+=Gp87
+-----END PGP MESSAGE-----
diff --git a/package.json b/package.json
@@ -176,7 +176,8 @@
 		"skp",
 		"avif",
 		"eps",
-		"lzh"
+		"lzh",
+		"pgp"
 	],
 	"devDependencies": {
 		"@types/node": "^13.1.4",

diff --git a/readme.md b/readme.md
@@ -400,6 +400,7 @@ Returns a set of supported MIME types.
 - [`avif`](https://en.wikipedia.org/wiki/AV1#AV1_Image_File_Format_(AVIF)) - AV1 Image File Format
 - [`eps`](https://en.wikipedia.org/wiki/Encapsulated_PostScript) - Encapsulated PostScript
 - [`lzh`](https://en.wikipedia.org/wiki/LHA_(file_format)) - LZH archive
+- [`pgp`](https://en.wikipedia.org/wiki/Pretty_Good_Privacy) - Pretty Good Privacy
 
 *Pull requests are welcome for additional commonly used file types.*
 

diff --git a/supported.js b/supported.js
@@ -131,7 +131,8 @@ module.exports = {
 		'skp',
 		'avif',
 		'eps',
-		'lzh'
+		'lzh',
+		'pgp'
 	],
 	mimeTypes: [
 		'image/jpeg',
@@ -256,6 +257,7 @@ module.exports = {
 		'video/MP2P',
 		'application/vnd.sketchup.skp',
 		'image/avif',
-		'application/x-lzh-compressed'
+		'application/x-lzh-compressed',
+		'application/pgp-encrypted'
 	]
 };