MetaExtractor

MetaExtractor is a Go package that provides comprehensive metadata extraction from files. It combines file system information, TrID file type analysis, and EXIF data extraction to give you a complete picture of your files.

Installation

To use this package, you need to have Go installed on your system. You also need to have the TrID command-line tool and ExifTool installed and accessible in your system's PATH.

1. First, install the TrID command-line tool. You can download it from the official TrID website.

2. Install ExifTool. You can download it from the official ExifTool website.

3. Install the MetaExtractor Go package:

go get github.com/attilabuti/metaextractor

Usage

package main

import (
	"fmt"
	"log"

	"github.com/attilabuti/metaextractor"
)

func main() {
	// Create a new MetaExtractor instance
	me := metaextractor.NewMetaExtractor(metaextractor.Options{
		TridPath:     "/path/to/trid",
		TridDefs:     "/path/to/triddefs.trd",
		TridTimeout:  5 * time.Second,
		TridMatches:  5,
		ExifToolPath: "/path/to/exiftool",
	})

	// Extract metadata from a file
	metadata, err := me.Extract("/path/to/your/file")
	if err != nil {
		log.Fatalf("Error extracting metadata: %v", err)
	}

	// Print the extracted metadata
	fmt.Printf("File Name: %s\n", metadata.Name)
	fmt.Printf("File Size: %d bytes\n", metadata.Size)
	fmt.Printf("File Extension: %s\n", metadata.Extension)
	fmt.Printf("Extension Mismatch: %v\n", metadata.ExtMismatch)
	fmt.Printf("Last Modified: %v\n", metadata.Time.ModTime)

	if len(metadata.Types) > 0 {
		fmt.Printf("Detected File Type: %s (%s)\n", metadata.Types[0].Type, metadata.Types[0].Mime)
	}

	fmt.Println("EXIF Metadata:")
	for key, value := range metadata.Exif {
		fmt.Printf("  %s: %v\n", key, value)
	}
}

Options

The Options struct allows you to configure the MetaExtractor:

• TridPath: Path to the TrID executable
• TridDefs: Path to the TrID definitions file
• TridTimeout: Maximum duration allowed for TrID execution
• TridMatches: Maximum number of file type matches to return from TrID
• ExifToolPath: Path to the ExifTool executable

Make sure to set these paths correctly according to your system configuration.

Issues

Submit the issues if you find any bug or have any suggestion.

Contribution

Fork the repo and submit pull requests.

License

This extension is licensed under the MIT License.