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simplify utf8 validation of incoming WS lines
As of #1483, websockets entail enforce-utf8, so there's no need to check globalUTF8EnforcementSetting when handling websockets.
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@ -126,10 +126,8 @@ func (wc IRCWSConn) WriteLines(buffers [][]byte) (err error) {
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func (wc IRCWSConn) ReadLine() (line []byte, err error) {
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messageType, line, err := wc.conn.ReadMessage()
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if err == nil {
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if messageType == websocket.BinaryMessage && globalUtf8EnforcementSetting {
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if !utf8.Valid(line) {
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return line, errInvalidUtf8
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}
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if messageType == websocket.BinaryMessage && !utf8.Valid(line) {
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return line, errInvalidUtf8
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}
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return line, nil
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} else if err == websocket.ErrReadLimit {
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