mirror of https://github.com/Fabio286/antares.git
46 lines
1.8 KiB
TypeScript
46 lines
1.8 KiB
TypeScript
export function mimeFromHex (hex: string) {
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switch (hex.substring(0, 4)) { // 2 bytes
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case '424D':
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return { ext: 'bmp', mime: 'image/bmp' };
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case '1F8B':
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return { ext: 'tar.gz', mime: 'application/gzip' };
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case '0B77':
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return { ext: 'ac3', mime: 'audio/vnd.dolby.dd-raw' };
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case '7801':
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return { ext: 'dmg', mime: 'application/x-apple-diskimage' };
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case '4D5A':
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return { ext: 'exe', mime: 'application/x-msdownload' };
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case '1FA0':
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case '1F9D':
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return { ext: 'Z', mime: 'application/x-compress' };
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default:
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switch (hex.substring(0, 6)) { // 3 bytes
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case 'FFD8FF':
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return { ext: 'jpg', mime: 'image/jpeg' };
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case '4949BC':
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return { ext: 'jxr', mime: 'image/vnd.ms-photo' };
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case '425A68':
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return { ext: 'bz2', mime: 'application/x-bzip2' };
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default:
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switch (hex) { // 4 bites
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case '89504E47':
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return { ext: 'png', mime: 'image/png' };
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case '47494638':
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return { ext: 'gif', mime: 'image/gif' };
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case '25504446':
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return { ext: 'pdf', mime: 'application/pdf' };
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case '504B0304':
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return { ext: 'zip', mime: 'application/zip' };
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case '425047FB':
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return { ext: 'bpg', mime: 'image/bpg' };
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case '4D4D002A':
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return { ext: 'tif', mime: 'image/tiff' };
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case '00000100':
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return { ext: 'ico', mime: 'image/x-icon' };
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default:
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return { ext: '', mime: 'unknown ' + hex };
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}
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}
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}
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}
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