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