45 lines
859 B
Go
45 lines
859 B
Go
package sanitize
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import (
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"strconv"
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"strings"
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)
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// IdString removes invalid character from an id string.
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func IdString(s string) string {
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if s == "" || len(s) > 256 || strings.Contains(s, "${") {
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return ""
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}
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s = strings.ToLower(s)
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// Remove all invalid characters.
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s = strings.Map(func(r rune) rune {
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if (r < '0' || r > '9') && (r < 'a' || r > 'z') && r != '-' && r != '_' && r != ':' {
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return -1
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}
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return r
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}, s)
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return s
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}
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// IdUint converts the string converted to an unsigned integer and 0 if the string is invalid.
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func IdUint(s string) uint {
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// Largest possible values:
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// UInt64: 18446744073709551615 (20 digits)
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// UInt32: 4294967295 (10 digits)
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if s == "" || len(s) > 10 || strings.Contains(s, "${") {
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return 0
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}
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result, err := strconv.ParseUint(s, 10, 32)
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if err != nil {
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return 0
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}
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return uint(result)
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}
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