34 lines
998 B
Dart
34 lines
998 B
Dart
extension MatrixIdExtension on String {
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static const Set<String> VALID_SIGILS = {'@', '!', '#', '\$', '+'};
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static const int MAX_LENGTH = 255;
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bool get isValidMatrixId {
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if (isEmpty ?? true) return false;
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if (length > MAX_LENGTH) return false;
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if (!VALID_SIGILS.contains(substring(0, 1))) {
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return false;
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}
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// event IDs do not have to have a domain
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if (substring(0, 1) == '\$') {
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return true;
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}
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// all other matrix IDs have to have a domain
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final parts = substring(1).split(':');
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// the localpart can be an empty string, e.g. for aliases
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if (parts.length != 2 || parts[1].isEmpty) {
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return false;
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}
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return true;
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}
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String get sigil => isValidMatrixId ? substring(0, 1) : null;
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String get localpart =>
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isValidMatrixId ? substring(1).split(':').first : null;
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String get domain => isValidMatrixId ? substring(1).split(':')[1] : null;
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bool equals(String other) => toLowerCase() == other?.toLowerCase();
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}
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