50 lines
1.0 KiB
Go
50 lines
1.0 KiB
Go
package sanitize
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import (
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"path/filepath"
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"strings"
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)
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const BadFilenameChars = "\n\t\r=*?:[]\"<>|(){}&'!;$`\\"
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//assumes unicode
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func SanitizeFilename(filename string) string {
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filename = strings.Map(func(r rune) rune {
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if r < 32 || (r > 126 && r < 160) || strings.ContainsRune(BadFilenameChars, r) {
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return -1
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}
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return r
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}, filename)
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filename = strings.TrimSpace(filename)
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filename = strings.TrimLeft(filename, " -~")
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filename = strings.TrimSpace(filename)
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filename = strings.Replace(filename, " ", "_", -1)
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filename = strings.Replace(filename, "_-_", "", -1)
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var (
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st strings.Builder
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prev rune
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)
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st.Grow(len(filename))
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for _, r := range filename {
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switch r {
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case '_':
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if r != prev {
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st.WriteRune(r)
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}
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default:
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st.WriteRune(r)
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}
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prev = r
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}
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return st.String()
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}
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func SanitizeFilepath(path string) string {
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var newpath string
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for _, filename := range strings.Split(filepath.Clean(path), string(filepath.Separator)) {
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newpath = filepath.Join(newpath, SanitizeFilename(filename))
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}
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return newpath
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}
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