Added support for IRC KICK command

channel.go

@@ -465,3 +465,30 @@ func (c *Channel) ListMessage(client *Client) (m *irc.Message) {
 	}
 	return
 }
+
+// Kick provides the capability for operators to kick members out of the channel
+func (c *Channel) Kick(client *Client, kicked []string, message string) {
+	if !c.HasMember(client) {
+		m := irc.Message{Prefix: client.Server.Prefix, Command: irc.ERR_NOTONCHANNEL, Params: []string{client.Nickname, c.Name}, Trailing: "You're not on that channel"}
+		client.Encode(&m)
+		return
+	}
+	if !c.MemberHasMode(client, ChannelModeOperator) {
+		m := irc.Message{Prefix: client.Server.Prefix, Command: irc.ERR_CHANOPRIVSNEEDED, Params: []string{client.Nickname, c.Name}, Trailing: "You're not channel operator"}
+		client.Encode(&m)
+		return
+	}
+
+	for _, kickedName := range kicked {
+		kickedClient, ok := c.Server.GetClientByNick(kickedName)
+		if !ok {
+			m := irc.Message{Prefix: client.Server.Prefix, Command: irc.ERR_USERNOTINCHANNEL, Params: []string{client.Nickname, kickedName, c.Name}, Trailing: "They aren't on that channel"}
+			client.Encode(&m)
+			return
+		}
+		m := irc.Message{Prefix: client.Prefix, Command: irc.KICK, Params: []string{c.Name, kickedName}, Trailing: message}
+		c.SendMessage(&m)
+		c.RemoveMember(kickedClient)
+		kickedClient.RemoveChannel(c)
+	}
+}

commands.go

@@ -816,3 +816,44 @@ func ListHandler(message *irc.Message, client *Client) {
 	m := irc.Message{Prefix: client.Server.Prefix, Command: irc.RPL_LISTEND, Params: []string{client.Nickname}, Trailing: "End of LIST"}
 	client.Encode(&m)
 }
+
+// KickHandler is a specialized CommandHandler to respond to channel IRC KICK commands from a client
+// Implemented according to RFC 1459 Section 4.2.8 and RFC 2812 Section 3.2.8
+func KickHandler(message *irc.Message, client *Client) {
+	if len(message.Params) == 0 {
+		m := irc.Message{Prefix: client.Server.Prefix, Command: irc.ERR_NEEDMOREPARAMS, Trailing: "Not enough parameters"}
+		client.Encode(&m)
+		return
+	}
+	channels := strings.Split(message.Params[0], ",")
+	nicks := strings.Split(message.Params[1], ",")
+	if len(channels) != 1 && len(channels) != len(nicks) {
+		//"For the message to be syntactically correct, there MUST be either one channel parameter and multiple user parameter, or as many channel parameters as there are user parameters."
+		m := irc.Message{Prefix: client.Server.Prefix, Command: irc.ERR_NEEDMOREPARAMS, Trailing: "Not enough parameters"}
+		client.Encode(&m)
+		return
+	}
+	comment := message.Trailing
+	if len(message.Params) == 3 {
+		comment = message.Params[2]
+	}
+	if len(channels) == 1 {
+		ch, ok := client.Server.GetChannel(channels[0])
+		if ok {
+			ch.Kick(client, nicks, comment)
+		} else {
+			m := irc.Message{Prefix: client.Server.Prefix, Command: irc.ERR_NOSUCHCHANNEL, Params: []string{client.Nickname, channels[0]}, Trailing: "No such channel"}
+			client.Encode(&m)
+		}
+		return
+	}
+	for i, channel := range channels {
+		ch, ok := client.Server.GetChannel(channel)
+		if ok {
+			ch.Kick(client, []string{nicks[i]}, comment)
+		} else {
+			m := irc.Message{Prefix: client.Server.Prefix, Command: irc.ERR_NOSUCHCHANNEL, Params: []string{client.Nickname, channel}, Trailing: "No such channel"}
+			client.Encode(&m)
+		}
+	}
+}