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trifid_mobile/lib/validators/ipValidator.dart

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import 'dart:io';
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bool ipValidator(String str, bool enableIPV6) {
final ia = InternetAddress.tryParse(str);
if (ia == null) {
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return false;
}
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switch (ia.type) {
case InternetAddressType.IPv6: {
if (enableIPV6) {
return true;
}
}
break;
case InternetAddressType.IPv4: { return true; }
break;
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}
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return false;
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}