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ergo/irc/commands.go

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// Copyright (c) 2012-2014 Jeremy Latt
// Copyright (c) 2014-2015 Edmund Huber
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// Copyright (c) 2016-2017 Daniel Oaks <daniel@danieloaks.net>
// released under the MIT license
package irc
import (
"github.com/goshuirc/irc-go/ircmsg"
"github.com/oragono/oragono/irc/modes"
)
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// Command represents a command accepted from a client.
type Command struct {
handler func(server *Server, client *Client, msg ircmsg.IrcMessage, rb *ResponseBuffer) bool
oper bool
usablePreReg bool
leaveClientIdle bool // if true, leaves the client active time alone
minParams int
capabs []string
}
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// Run runs this command with the given client/message.
func (cmd *Command) Run(server *Server, client *Client, session *Session, msg ircmsg.IrcMessage) bool {
if !client.registered && !cmd.usablePreReg {
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client.Send(nil, server.name, ERR_NOTREGISTERED, "*", client.t("You need to register before you can use that command"))
return false
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}
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if cmd.oper && !client.HasMode(modes.Operator) {
client.Send(nil, server.name, ERR_NOPRIVILEGES, client.nick, client.t("Permission Denied - You're not an IRC operator"))
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return false
}
if len(cmd.capabs) > 0 && !client.HasRoleCapabs(cmd.capabs...) {
client.Send(nil, server.name, ERR_NOPRIVILEGES, client.nick, client.t("Permission Denied"))
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return false
}
if len(msg.Params) < cmd.minParams {
client.Send(nil, server.name, ERR_NEEDMOREPARAMS, client.nick, msg.Command, client.t("Not enough parameters"))
return false
}
rb := NewResponseBuffer(session)
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rb.Label = GetLabel(msg)
exiting := cmd.handler(server, client, msg, rb)
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rb.Send(true)
// after each command, see if we can send registration to the client
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if !exiting && !client.registered {
exiting = server.tryRegister(client, session)
}
// most servers do this only for PING/PONG, but we'll do it for any command:
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if client.registered {
session.idletimer.Touch()
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}
if client.registered && !cmd.leaveClientIdle {
client.Active(session)
}
return exiting
}
// Commands holds all commands executable by a client connected to us.
var Commands map[string]Command
func init() {
Commands = map[string]Command{
"ACC": {
handler: accHandler,
usablePreReg: true,
minParams: 1,
},
"AMBIANCE": {
handler: sceneHandler,
minParams: 2,
},
"AUTHENTICATE": {
handler: authenticateHandler,
usablePreReg: true,
minParams: 1,
},
"AWAY": {
handler: awayHandler,
minParams: 0,
},
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"BRB": {
handler: brbHandler,
minParams: 0,
},
"CAP": {
handler: capHandler,
usablePreReg: true,
minParams: 1,
},
"CHATHISTORY": {
handler: chathistoryHandler,
minParams: 3,
},
"DEBUG": {
handler: debugHandler,
minParams: 1,
oper: true,
},
"DLINE": {
handler: dlineHandler,
minParams: 1,
oper: true,
},
"HELP": {
handler: helpHandler,
minParams: 0,
},
"HELPOP": {
handler: helpHandler,
minParams: 0,
},
"HISTORY": {
handler: historyHandler,
minParams: 1,
},
"INFO": {
handler: infoHandler,
},
"INVITE": {
handler: inviteHandler,
minParams: 2,
},
"ISON": {
handler: isonHandler,
minParams: 1,
leaveClientIdle: true,
},
"JOIN": {
handler: joinHandler,
minParams: 1,
},
"KICK": {
handler: kickHandler,
minParams: 2,
},
"KILL": {
handler: killHandler,
minParams: 1,
oper: true,
capabs: []string{"oper:local_kill"}, //TODO(dan): when we have S2S, this will be checked in the command handler itself
},
"KLINE": {
handler: klineHandler,
minParams: 1,
oper: true,
},
"LANGUAGE": {
handler: languageHandler,
usablePreReg: true,
minParams: 1,
},
"LIST": {
handler: listHandler,
minParams: 0,
},
"LUSERS": {
handler: lusersHandler,
minParams: 0,
},
"MODE": {
handler: modeHandler,
minParams: 1,
},
"MONITOR": {
handler: monitorHandler,
minParams: 1,
},
"MOTD": {
handler: motdHandler,
minParams: 0,
},
"NAMES": {
handler: namesHandler,
minParams: 0,
},
"NICK": {
handler: nickHandler,
usablePreReg: true,
minParams: 1,
},
"NOTICE": {
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handler: messageHandler,
minParams: 2,
},
"NPC": {
handler: npcHandler,
minParams: 3,
},
"NPCA": {
handler: npcaHandler,
minParams: 3,
},
"OPER": {
handler: operHandler,
minParams: 2,
},
"PART": {
handler: partHandler,
minParams: 1,
},
"PASS": {
handler: passHandler,
usablePreReg: true,
minParams: 1,
},
"PING": {
handler: pingHandler,
usablePreReg: true,
minParams: 1,
leaveClientIdle: true,
},
"PONG": {
handler: pongHandler,
usablePreReg: true,
minParams: 1,
leaveClientIdle: true,
},
"PRIVMSG": {
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handler: messageHandler,
minParams: 2,
},
"RENAME": {
handler: renameHandler,
minParams: 2,
},
"RESUME": {
handler: resumeHandler,
usablePreReg: true,
minParams: 1,
},
"SAJOIN": {
handler: sajoinHandler,
minParams: 1,
capabs: []string{"sajoin"},
},
"SANICK": {
handler: sanickHandler,
minParams: 2,
oper: true,
},
"SAMODE": {
handler: modeHandler,
minParams: 1,
capabs: []string{"samode"},
},
"SCENE": {
handler: sceneHandler,
minParams: 2,
},
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"SETNAME": {
handler: setnameHandler,
minParams: 1,
},
"TAGMSG": {
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handler: messageHandler,
minParams: 1,
},
"QUIT": {
handler: quitHandler,
usablePreReg: true,
minParams: 0,
},
"REHASH": {
handler: rehashHandler,
minParams: 0,
oper: true,
capabs: []string{"oper:rehash"},
},
"TIME": {
handler: timeHandler,
minParams: 0,
},
"TOPIC": {
handler: topicHandler,
minParams: 1,
},
"UNDLINE": {
handler: unDLineHandler,
minParams: 1,
oper: true,
},
"UNKLINE": {
handler: unKLineHandler,
minParams: 1,
oper: true,
},
"USER": {
handler: userHandler,
usablePreReg: true,
minParams: 4,
},
"USERHOST": {
handler: userhostHandler,
minParams: 1,
},
"VERSION": {
handler: versionHandler,
minParams: 0,
},
"WEBIRC": {
handler: webircHandler,
usablePreReg: true,
minParams: 4,
},
"WHO": {
handler: whoHandler,
minParams: 1,
leaveClientIdle: true,
},
"WHOIS": {
handler: whoisHandler,
minParams: 1,
},
"WHOWAS": {
handler: whowasHandler,
minParams: 1,
},
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"ZNC": {
handler: zncHandler,
minParams: 1,
},
}
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initializeServices()
}