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325 lines
8.6 KiB
Go
325 lines
8.6 KiB
Go
// Copyright (c) 2016- Daniel Oaks <daniel@danieloaks.net>
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// released under the MIT license
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package irc
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import (
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"strings"
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"github.com/DanielOaks/girc-go/ircmsg"
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)
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// HelpEntry represents an entry in the Help map.
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type HelpEntry struct {
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oper bool
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text string
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}
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// used for duplicates
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var (
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cmodeHelpText = `== Channel Modes ==
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Oragono supports the following channel modes:
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= Type A - list modes =
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+b | Client masks that are banned from the channel.
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+e | Client masks that are exempted from bans.
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+I | Client masks that are exempted from the invite-only flag.
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= Type C - setting modes with a parameter =
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+l | Client join limit for the channel.
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+k | Key required when joining the channel.
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= Type D - flag modes =
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+i | Invite-only mode, only invited clients can join the channel.
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+m | Moderated mode, only priviledged clients can talk on the channel.
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+n | No-outside-messages mode, only users that are on the channel can send the channel messages.
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+t | Only channel opers can modify the topic.
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+s | Secret mode, channel won't show up in /LIST or whois replies.
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= Prefixes =
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+q (~) | Founder channel mode.
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+a (&) | Admin channel mode.
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+o (@) | Operator channel mode.
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+h (%) | Halfop channel mode.
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+v (+) | Voice channel mode.`
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umodeHelpText = `== User Modes ==
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Oragono supports the following user modes:
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+a | User is marked as being away. This mode is set with the /AWAY command.
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+i | User is marked as invisible (their channels are hidden from whois replies).
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+o | User is an IRC operator.
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+Z | User is connected via TLS.`
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)
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// Help contains the help strings distributed with the IRCd.
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var Help = map[string]HelpEntry{
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// Commands
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"authenticate": {
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text: `AUTHENTICATE
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Used during SASL authentication. See the IRCv3 specs for more info:
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http://ircv3.net/specs/extensions/sasl-3.1.html`,
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},
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"away": {
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text: `AWAY [message]
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If [message] is sent, marks you away. If [message] is not sent, marks you no
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longer away.`,
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},
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"cap": {
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text: `CAP <subcommand> [:<capabilities>]
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Used in capability negotiation. See the IRCv3 specs for more info:
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http://ircv3.net/specs/core/capability-negotiation-3.1.html
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http://ircv3.net/specs/core/capability-negotiation-3.2.html`,
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},
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"debug": {
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oper: true,
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text: `DEBUG <option>
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Prints debug information about the IRCd. <option> can be one of:
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* GCSTATS: Garbage control statistics.
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* NUMGOROUTINE: Number of goroutines in use.
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* STARTCPUPROFILE: Starts the CPU profiler.
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* STOPCPUPROFILE: Stops the CPU profiler.
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* PROFILEHEAP: Writes out the CPU profiler info.`,
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},
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"invite": {
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text: `INVITE <nickname> <channel>
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Invites the given user to the given channel, so long as you have the
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appropriate channel privs.`,
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},
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"ison": {
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text: `ISON <nickname>{ <nickname>}
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Returns whether the given nicks exist on the network.`,
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},
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"join": {
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text: `JOIN <channel>{,<channel>} [<key>{,<key>}]
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JOIN 0
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Joins the given channels with the matching keys, or if the only param is "0"
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parts all channels instead.`,
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},
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"kick": {
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text: `KICK <channel> <user> [reason]
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Removes the user from the given channel, so long as you have the appropriate
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channel privs.`,
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},
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"kill": {
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oper: true,
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text: `KILL <nickname> [reason]
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Removes the given user from the network, showing them the reason if it is
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supplied.`,
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},
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"list": {
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text: `LIST [<channel>{,<channel>}] [<elistcond>{,<elistcond>}]
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Shows information on the given channels (or if none are given, then on all
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channels). <elistcond>s modify how the channels are selected.`,
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//TODO(dan): Explain <elistcond>s in more specific detail
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},
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"mode": {
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text: `MODE <target> [<modestring> [<mode arguments>...]]
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Sets and removes modes from the given target. For more specific information on
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mode characters, see the help for "cmode" and "umode".`,
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},
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"motd": {
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text: `MOTD [server]
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Returns the message of the day for this, or the given, server.`,
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},
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"names": {
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text: `NAMES [<channel>{,<channel>}]
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Views the clients joined to a channel and their channel membership prefixes. To
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view the channel membership prefixes supported by this server, see the help for
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"PREFIX".`,
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},
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"nick": {
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text: `NICK <newnick>
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Sets your nickname to the new given one.`,
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},
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"notice": {
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text: `NOTICE <target>{,<target>} <text to be sent>
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Sends the text to the given targets as a NOTICE.`,
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},
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"oper": {
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text: `OPER <name> <password>
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If the correct details are given, gives you IRCop privs.`,
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},
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"part": {
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text: `PART <channel>{,<channel>} [reason]
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Leaves the given channels and shows people the given reason.`,
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},
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"pass": {
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text: `PASS <password>
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When the server requires a connection password to join, used to send us the
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password.`,
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},
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"ping": {
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text: `PING <args>...
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Requests a PONG. Used to check link connectivity.`,
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},
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"pong": {
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text: `PONG <args>...
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Replies to a PING. Used to check link connectivity.`,
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},
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"privmsg": {
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text: `PRIVMSG <target>{,<target>} <text to be sent>
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Sends the text to the given targets as a PRIVMSG.`,
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},
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"sanick": {
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oper: true,
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text: `SANICK <currentnick> <newnick>
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Gives the given user a new nickname.`,
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},
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"quit": {
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text: `QUIT [reason]
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Indicates that you're leaving the server, and shows everyone the given reason.`,
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},
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"reg": {
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text: `REG CREATE <accountname> [callback_namespace:]<callback> [cred_type] :<credential>
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REG VERIFY <accountname> <auth_code>
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Used in account registration. See the relevant specs for more info:
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https://github.com/DanielOaks/ircv3-specifications/blob/register-and-verify/extensions/reg-core-3.3.md`,
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},
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"time": {
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text: `TIME [server]
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Shows the time of the current, or the given, server.`,
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},
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"topic": {
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text: `TOPIC <channel> [topic]
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If [topic] is given, sets the topic in the channel to that. If [topic] is not
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given, views the current topic on the channel.`,
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},
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"user": {
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text: `USER <username> 0 * <realname>
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Used in connection registration, sets your username and realname to the given
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values (though your username may also be looked up with Ident).`,
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},
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"version": {
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text: `VERSION [server]
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Views the version of software and the RPL_ISUPPORT tokens for the given server.`,
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},
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"who": {
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text: `WHO <name> [o]
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Returns information for the given user.`,
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},
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"whois": {
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text: `WHOIS <client>{,<client>}
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Returns information for the given user(s).`,
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},
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"whowas": {
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text: `WHOWAS <nickname>
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Returns historical information on the last user with the given nickname.`,
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},
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// Informational
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"cmode": {
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text: cmodeHelpText,
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},
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"cmodes": {
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text: cmodeHelpText,
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},
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"umode": {
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text: umodeHelpText,
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},
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"umodes": {
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text: umodeHelpText,
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},
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// RPL_ISUPPORT
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"casemapping": {
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text: `RPL_ISUPPORT CASEMAPPING
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Oragono supports an experimental unicode casemapping designed for extended
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Unicode support. This casemapping is based off RFC 7700 and the draft rfc7700
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casemapping spec here:
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https://github.com/DanielOaks/ircv3-specifications/blob/master%2Brfc7700/documentation/rfc7700.md`,
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},
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"prefix": {
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text: `RPL_ISUPPORT PREFIX
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Oragono supports the following channel membership prefixes:
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+q (~) | Founder channel mode.
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+a (&) | Admin channel mode.
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+o (@) | Operator channel mode.
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+h (%) | Halfop channel mode.
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+v (+) | Voice channel mode.`,
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},
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}
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// sendHelp sends the client help of the given string.
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func (client *Client) sendHelp(name string, text string) {
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splitName := strings.Split(name, " ")
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textLines := strings.Split(text, "\n")
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for i, line := range textLines {
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args := splitName
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args = append(args, line)
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if i == 0 {
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client.Send(nil, client.server.name, RPL_HELPSTART, args...)
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} else {
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client.Send(nil, client.server.name, RPL_HELPTXT, args...)
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}
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}
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args := splitName
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args = append(args, "End of /HELP")
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client.Send(nil, client.server.name, RPL_ENDOFHELP, args...)
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}
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// helpHandler returns the appropriate help for the given query.
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func helpHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
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argument := strings.ToLower(strings.TrimSpace(strings.Join(msg.Params, " ")))
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if len(argument) < 1 {
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client.sendHelp("HELP", `HELP <argument>
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Get an explanation of <argument>.`)
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return false
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}
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helpHandler, exists := Help[argument]
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if exists && (!client.flags[Operator] || (helpHandler.oper && client.flags[Operator])) {
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client.sendHelp(strings.ToUpper(argument), helpHandler.text)
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} else {
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args := msg.Params
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args = append(args, "Help not found")
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client.Send(nil, server.name, ERR_HELPNOTFOUND, args...)
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}
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return false
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}
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