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Add TAR magic numbers to file sniffer.

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This commit is contained in:
Jeff Schiller 2021-06-20 12:59:11 -07:00
parent 8bf65d6384
commit cd847d1b71
2 changed files with 7 additions and 0 deletions
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5
file/sniffer.js
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@ -13,6 +13,11 @@
const fileSignatures = { const fileSignatures = {
// Document formats. // Document formats.
'application/pdf': [[0x25, 0x50, 0x44, 0x46, 0x2d]], 'application/pdf': [[0x25, 0x50, 0x44, 0x46, 0x2d]],
// Archive formats:
'application/x-tar': [
[0x75, 0x73, 0x74, 0x61, 0x72, 0x00, 0x30, 0x30],
[0x75, 0x73, 0x74, 0x61, 0x72, 0x20, 0x20, 0x00],
],
// Compressed archive formats. // Compressed archive formats.
'application/x-7z-compressed': [[0x37, 0x7A, 0xBC, 0xAF, 0x27, 0x1C]], 'application/x-7z-compressed': [[0x37, 0x7A, 0xBC, 0xAF, 0x27, 0x1C]],
'application/x-bzip2': [[0x42, 0x5A, 0x68]], 'application/x-bzip2': [[0x42, 0x5A, 0x68]],

2
tests/file-sniffer.spec.js
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@ -34,4 +34,6 @@ describe('bitjs.file.sniffer', () => {
it('MP3_3()', () => { sniffTest('audio/mpeg', [0xFF, 0xF2]); }); it('MP3_3()', () => { sniffTest('audio/mpeg', [0xFF, 0xF2]); });
it('MP3_4()', () => { sniffTest('audio/mpeg', [0x49, 0x44, 0x33]); }); it('MP3_4()', () => { sniffTest('audio/mpeg', [0x49, 0x44, 0x33]); });
it('OGG', () => { sniffTest('application/ogg', [0x4F, 0x67, 0x67, 0x53]); }); it('OGG', () => { sniffTest('application/ogg', [0x4F, 0x67, 0x67, 0x53]); });
it('TAR_1', () => { sniffTest('application/x-tar', [0x75, 0x73, 0x74, 0x61, 0x72, 0x00, 0x30, 0x30]); });
it('TAR_2', () => { sniffTest('application/x-tar', [0x75, 0x73, 0x74, 0x61, 0x72, 0x20, 0x20, 0x00]); });
}); });