Fujifilm RAW Image

import magic
# Libmagic will reliably detect the 'FUJIFILMCCD-RAW' signature
print(magic.from_file('photo.raf', mime=True)) # Outputs 'image/x-fuji-raf'

const fs = require('fs');
// Manually detecting the 16-byte Fuji RAF magic signature
const buffer = Buffer.alloc(16);
const fd = fs.openSync('photo.raf', 'r');
fs.readSync(fd, buffer, 0, 16, 0);
fs.closeSync(fd);
const signature = buffer.toString('ascii');
const isRAF = signature === 'FUJIFILMCCD-RAW ';
console.log('Is Fujifilm RAF:', isRAF);

import (
    "bytes"
    "net/http"
)
// Native Go HTTP detection might return application/octet-stream.
// Check directly for the explicit 16-byte signature:
// isRAF := bytes.HasPrefix(buf, []byte("FUJIFILMCCD-RAW "))

$mime = mime_content_type('photo.raf');
echo $mime; // Standard PHP setups with updated magic definitions will return 'image/x-fuji-raf'