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- Subject: Improve JavaScript detection (FC Stegerman)
- Origin: FILE5_44-15-ga2756aa5 <https://github.com/file/file/commit/FILE5_44-15-ga2756aa5>
- Upstream-Author: Christos Zoulas <christos@zoulas.com>
- Date: Thu Jan 12 00:02:16 2023 +0000
- --- a/magic/Magdir/javascript
- +++ b/magic/Magdir/javascript
- @@ -3,18 +3,68 @@
- # $File: javascript,v 1.4 2022/09/02 08:08:17 christos Exp $
- # javascript: magic for javascript and node.js scripts.
- #
- -0 string/w #!/bin/node Node.js script text executable
- +0 string/tw #!/bin/node Node.js script executable
- !:mime application/javascript
- -0 string/w #!/usr/bin/node Node.js script text executable
- +0 string/tw #!/usr/bin/node Node.js script executable
- !:mime application/javascript
- -0 string/w #!/bin/nodejs Node.js script text executable
- +0 string/tw #!/bin/nodejs Node.js script executable
- !:mime application/javascript
- -0 string/w #!/usr/bin/nodejs Node.js script text executable
- -!:mime application/javascript
- -0 string #!/usr/bin/env\ node Node.js script text executable
- -!:mime application/javascript
- -0 string #!/usr/bin/env\ nodejs Node.js script text executable
- +0 string/tw #!/usr/bin/nodejs Node.js script executable
- !:mime application/javascript
- +0 string/t #!/usr/bin/env\ node Node.js script executable
- +!:mime application/javascript
- +0 string/t #!/usr/bin/env\ nodejs Node.js script executable
- +!:mime application/javascript
- +
- +# JavaScript
- +# The strength is increased to beat the C++ & HTML rules
- +0 search "use\x20strict" JavaScript source
- +!:strength +30
- +!:mime application/javascript
- +!:ext js
- +0 search 'use\x20strict' JavaScript source
- +!:strength +30
- +!:mime application/javascript
- +!:ext js
- +0 regex module(\\.|\\[["'])exports.*= JavaScript source
- +!:strength +30
- +!:mime application/javascript
- +!:ext js
- +0 regex \^(const|var|let).*=.*require\\( JavaScript source
- +!:strength +30
- +!:mime application/javascript
- +!:ext js
- +0 regex \^export\x20(function|class|default|const|var|let|async)\x20 JavaScript source
- +!:strength +30
- +!:mime application/javascript
- +!:ext js
- +0 regex \\((async\x20)?function[(\x20] JavaScript source
- +!:strength +30
- +!:mime application/javascript
- +!:ext js
- +0 regex \^(import|export).*\x20from\x20 JavaScript source
- +!:strength +30
- +!:mime application/javascript
- +!:ext js
- +0 regex \^(import|export)\x20["']\\./ JavaScript source
- +!:strength +30
- +!:mime application/javascript
- +!:ext js
- +0 regex \^require\\(["'] JavaScript source
- +!:strength +30
- +!:mime application/javascript
- +!:ext js
- +0 regex typeof.*[!=]== JavaScript source
- +!:strength +30
- +!:mime application/javascript
- +!:ext js
- +
- +# React Native minified JavaScript
- +0 search/128 __BUNDLE_START_TIME__= React Native minified JavaScript
- +!:strength +30
- +!:mime application/javascript
- +!:ext bundle/jsbundle
- +
- # Hermes by Facebook https://hermesengine.dev/
- # https://github.com/facebook/hermes/blob/master/include/hermes/\
- # BCGen/HBC/BytecodeFileFormat.h#L24
- --- a/magic/Magdir/sgml
- +++ b/magic/Magdir/sgml
- @@ -50,6 +50,16 @@
- !:mime text/html
- !:strength + 5
-
- +# avoid misdetection as JavaScript
- +0 string/cWt \<!doctype\ html HTML document text
- +!:mime text/html
- +0 string/ct \<html> HTML document text
- +!:mime text/html
- +0 string/ct \<!--
- +>&0 search/4096/cWt \<!doctype\ html HTML document text
- +>&0 search/4096/ct \<html> HTML document text
- +!:mime text/html
- +
- # SVG document
- # https://www.w3.org/TR/SVG/single-page.html
- 0 search/4096/cWbt \<!doctype\ svg SVG XML document
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