funcs.go

package main

import (
	"fmt"
	"os"
	"path/filepath"
	"strconv"
	"syscall"

	log "github.com/sirupsen/logrus"
)

func fileGetAbsolutePath(path string) (string, os.FileInfo) {
	ret, err := filepath.Abs(path)
	if err != nil {
		log.Fatalf("invalid file: %v", err)
	}

	f, err := os.Lstat(ret)
	if err != nil {
		log.Fatalf("file stats failed: %v", err)
	}

	return ret, f
}

func checkIfDirectoryExists(path string) bool {
	f, err := os.Stat(path)

	// check if path exists
	if err != nil {
		return false
	}

	return f.IsDir()
}

func checkIfFileExistsAndOwnedByRoot(path string) bool {
	f, err := os.Stat(path)

	// check if path exists
	if err != nil {
		return false
	}

	// check if it is not a file
	if !f.Mode().IsRegular() {
		return false
	}

	uidS := fmt.Sprint(f.Sys().(*syscall.Stat_t).Uid)
	uid, err := strconv.Atoi(uidS)
	if err != nil {
		return false
	}

	if uid != 0 {
		return false
	}

	return true
}

func checkIfFileIsValid(f os.FileInfo, path string) bool {
	if f.IsDir() {
		return false
	}

	if f.Mode().IsRegular() {
		if f.Mode().Perm()&0022 == 0 {
			return true
		} else {
			log.Infof("ignoring file with wrong modes (not xx22) %s\n", path)
		}
	} else {
		log.Infof("ignoring non regular file %s\n", path)
	}

	return false
}