Carlos Florêncio
37 lines
946 B
Go
37 lines
946 B
Go
package shared
|
|
|
|
import (
|
|
"encoding/json"
|
|
"regexp"
|
|
"strings"
|
|
)
|
|
|
|
var slugRe = regexp.MustCompile(`[^a-z0-9]+`)
|
|
|
|
// IsValidPathComponent reports whether s is safe to use as a filesystem path
|
|
// component: non-empty, no slashes, no backslashes, no ".." traversal.
|
|
func IsValidPathComponent(s string) bool {
|
|
return s != "" &&
|
|
!strings.Contains(s, "/") &&
|
|
!strings.Contains(s, "\\") &&
|
|
!strings.Contains(s, "..")
|
|
}
|
|
|
|
// GenerateSlug converts a name to a lowercase hyphenated slug suitable for
|
|
// use as a URL or filesystem identifier.
|
|
func GenerateSlug(name string) string {
|
|
lower := strings.ToLower(name)
|
|
slug := slugRe.ReplaceAllString(lower, "-")
|
|
return strings.Trim(slug, "-")
|
|
}
|
|
|
|
// MustJSON marshals v to a JSON string, returning "{}" on any error.
|
|
// Intended for struct fields that must always contain valid JSON.
|
|
func MustJSON(v interface{}) string {
|
|
b, err := json.Marshal(v)
|
|
if err != nil {
|
|
return "{}"
|
|
}
|
|
return string(b)
|
|
}
|