/*
* @Author: Bartuccio Antoine
* @Date:   2018-07-17 18:37:38
* @Last Modified by:   klmp200
* @Last Modified time: 2018-07-17 19:35:18
 */
// +build !windows

package gowebframework

import (
	"log"
	"os"
	"syscall"
)

// Check if a file or directory is writable
func isWritable(path string) bool {
	os_stats, err := os.Stat(path)
	if err != nil {
		// Error reading file or folder
		log.Println(err)
		return false
	}
	if os_stats.Mode().Perm()&(1<<(uint(7))) == 0 {
		// Check if user bit is enabled
		log.Println("User bit on " + path + " is not enabled")
		return false
	}

	var syscall_stats syscall.Stat_t
	err = syscall.Stat(path, &syscall_stats)
	if err != nil {
		// Error getting stats
		log.Println(err)
		return false
	}

	if uint32(os.Getuid()) != syscall_stats.Uid {
		// User doesn't have permission to write
		log.Println("No permission to write on " + path)
		return false
	}

	return true
}