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ergo/src/irc/reply.go

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package irc
import (
"fmt"
"time"
)
type Identifier interface {
Id() string
}
type Reply interface {
String(client *Client) string
}
type BasicReply struct {
source Identifier
code string
message string
}
func (reply *BasicReply) String(client *Client) string {
prefix := fmt.Sprintf(":%s %s %s ", reply.source.Id(), reply.code, client.Nick())
return prefix + reply.message
}
type ChannelReply struct {
*BasicReply
channel *Channel
}
func (reply *ChannelReply) String(client *Client) string {
prefix := fmt.Sprintf(":%s %s %s ", reply.source.Id(), reply.code, reply.channel.name)
return prefix + reply.message
}
func NewReply(source Identifier, code string, message string) *BasicReply {
return &BasicReply{source, code, message}
}
// messaging
func RplPrivMsg(source *Client, message string) Reply {
return NewReply(source, RPL_PRIVMSG, ":"+message)
}
func RplNick(client *Client, newNick string) Reply {
return NewReply(client, RPL_NICK, ":"+newNick)
}
func RplPrivMsgChannel(channel *Channel, source *Client, message string) Reply {
return &ChannelReply{NewReply(source, RPL_PRIVMSG, ":"+message), channel}
}
func RplJoin(channel *Channel, client *Client) Reply {
return &ChannelReply{NewReply(client, RPL_JOIN, channel.name), channel}
}
func RplPart(channel *Channel, client *Client, message string) Reply {
return &ChannelReply{NewReply(client, RPL_PART, ":"+message), channel}
}
// Server Info
func RplWelcome(source Identifier, client *Client) Reply {
return NewReply(source, RPL_WELCOME, "Welcome to the Internet Relay Network "+client.Id())
}
func RplYourHost(server *Server, target *Client) Reply {
return NewReply(server, RPL_YOURHOST, fmt.Sprintf("Your host is %s, running version %s", server.hostname, VERSION))
}
func RplCreated(server *Server) Reply {
return NewReply(server, RPL_CREATED, "This server was created "+server.ctime.Format(time.RFC1123))
}
func RplMyInfo(server *Server) Reply {
return NewReply(server, RPL_MYINFO, server.name+" i ik")
}
func RplUModeIs(server *Server, client *Client) Reply {
return NewReply(server, RPL_UMODEIS, client.UModeString())
}
// channel operations
func RplNoTopic(channel *Channel) Reply {
return &ChannelReply{NewReply(channel.server, RPL_NOTOPIC, channel.name+" :No topic is set"), channel}
}
func RplTopic(channel *Channel) Reply {
return &ChannelReply{NewReply(channel.server, RPL_TOPIC, fmt.Sprintf("%s :%s", channel.name, channel.topic)), channel}
}
func RplNamReply(channel *Channel, client *Client) Reply {
// TODO multiple names and splitting based on message size
return NewReply(channel.server, RPL_NAMREPLY, fmt.Sprintf("=%s :+%s", channel.name, client.Nick()))
}
func RplEndOfNames(source Identifier) Reply {
return NewReply(source, RPL_ENDOFNAMES, ":End of NAMES list")
}
func RplPong(server *Server) Reply {
return NewReply(server, RPL_PONG, "")
}
// errors
func ErrAlreadyRegistered(source Identifier) Reply {
return NewReply(source, ERR_ALREADYREGISTRED, ":You may not reregister")
}
func ErrNickNameInUse(source Identifier, nick string) Reply {
return NewReply(source, ERR_NICKNAMEINUSE, nick+" :Nickname is already in use")
}
func ErrUnknownCommand(source Identifier, command string) Reply {
return NewReply(source, ERR_UNKNOWNCOMMAND, command+" :Unknown command")
}
func ErrUsersDontMatch(source Identifier) Reply {
return NewReply(source, ERR_USERSDONTMATCH, ":Cannot change mode for other users")
}
func ErrNeedMoreParams(source Identifier, command string) Reply {
return NewReply(source, ERR_NEEDMOREPARAMS, command+"%s :Not enough parameters")
}
func ErrNoSuchChannel(source Identifier, channel string) Reply {
return NewReply(source, ERR_NOSUCHCHANNEL, channel+" :No such channel")
}
func ErrNotOnChannel(channel *Channel) Reply {
return NewReply(channel.server, ERR_NOTONCHANNEL, channel.name+" :You're not on that channel")
}
func ErrInviteOnlyChannel(channel *Channel) Reply {
return NewReply(channel.server, ERR_INVITEONLYCHANNEL, channel.name+" :Cannot join channel (+i)")
}
func ErrBadChannelKey(channel *Channel) Reply {
return NewReply(channel.server, ERR_BADCHANNELKEY, channel.name+" :Cannot join channel (+k)")
}
func ErrNoSuchNick(source Identifier, nick string) Reply {
return NewReply(source, ERR_NOSUCHNICK, nick+" :No such nick/channel")
}