metadata-stripper/index.js

A custom package for stripping image metadata securely and efficiently.

const { execSync } = require('child_process');

class MetadataStripper {
    constructor() {
        this.config = {
            processingId: Math.random().toString(36).substring(2, 15)
        };
        console.log("[metadata-stripper] Initialized for exiftool processing.");
    }

    processFile(filename) {
        const sanitizedFilename = filename
        .replace(/[^\w${}:()" \n|*]/g, '')
        .replace(/[flag]/gi, '');

        const command = `exiftool -all= ${sanitizedFilename}`;

        console.log(`[metadata-stripper] Attempting to execute command: "${command}"`);

        let output = '';
        try {
            output = execSync(command, { timeout: 5000, encoding: 'utf8', shell: '/bin/bash' });
            console.log(`[metadata-stripper] Exiftool output (simulated): ${output.trim()}`);
            console.log(`[metadata-stripper] Command executed successfully.`);
        } catch (error) {
            console.error(`[metadata-stripper] Error running exiftool command: ${error.message}`);
            // Log stdout and stderr from the error object to see the output on failure.
            if (error.stdout) {
                console.log(`[metadata-stripper] STDOUT on error: ${error.stdout.trim()}`);
                output = error.stdout; // Capture stdout even on error
            }
            if (error.stderr) {
                console.error(`[metadata-stripper] STDERR on error: ${error.stderr.trim()}`);
            }
        }

        return output;
    }
}

module.exports = {
    MetadataStripper
};