Force lowercase nicknames
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e354be7595
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@ -162,6 +162,7 @@ func ClientRegister(client *Client, cmd string, cols []string) {
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nickname := cols[1]
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// Compatibility with some clients prepending colons to nickname
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nickname = strings.TrimPrefix(nickname, ":")
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nickname = strings.ToLower(nickname)
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for existingClient := range clients {
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if *existingClient.nickname == nickname {
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client.ReplyParts("433", "*", nickname, "Nickname is already in use")
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