traefik/pkg/provider/acme/local_store_unix.go

37 lines
660 B
Go

//go:build !windows
// +build !windows
package acme
import (
"fmt"
"os"
)
// CheckFile checks file permissions and content size.
func CheckFile(name string) (bool, error) {
f, err := os.Open(name)
if err != nil && os.IsNotExist(err) {
nf, err := os.Create(name)
if err != nil {
return false, err
}
defer nf.Close()
return false, nf.Chmod(0o600)
}
if err != nil {
return false, err
}
defer f.Close()
fi, err := f.Stat()
if err != nil {
return false, err
}
if fi.Mode().Perm()&0o077 != 0 {
return false, fmt.Errorf("permissions %o for %s are too open, please use 600", fi.Mode().Perm(), name)
}
return fi.Size() > 0, nil
}