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dumparchive.go
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/
dumparchive.go
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package main
import (
"flag"
"fmt"
"log"
"os"
"path/filepath"
"github.com/chchench/textract"
)
var (
outputDir = flag.String("outdir", "output", "Directory to dump extracted content into")
target = flag.String("file", "", "File to dump")
)
func main() {
flag.Parse()
if *target == "" {
log.Fatal("An input filename/path should be specified using the -file flag\n")
}
ft, _ := textract.GetTrueFileType(*target)
if ft != "application/zip" {
log.Fatal("This file is not an archive\n")
}
createDir(*outputDir)
list, err := textract.ExtractArchiveContent(*target, func(string) bool { return true })
if err != nil {
log.Fatal("Unable to extract file archive content\n")
}
dst := *outputDir
for _, f := range *list {
dstPath := filepath.Join(dst, f.Identifier)
dir := filepath.Dir(dstPath)
if dir != "" {
createDir(dir)
}
dstFile, err := os.Create(dstPath)
if err != nil {
log.Fatal(err.Error())
}
if _, err := dstFile.Write(f.Data); err != nil {
log.Fatal(err.Error())
}
dstFile.Close()
}
fmt.Println("Program finished successfully")
}
func createDir(dp string) {
_, err := os.Stat(dp)
if err != nil {
if os.IsNotExist(err) {
if err := os.MkdirAll(dp, os.ModePerm); err != nil {
log.Fatal(err)
}
} else {
log.Fatal(err)
}
}
}