otouto

The plugin-wielding, multipurpose Telegram bot.

Public Bot | Official Channel | Development Group | Owner's Manual

otouto is an independently-developed Telegram API bot written in Lua. Originally conceived as a CLI script in February of 2015, otouto has since been open-sourced and migrated to the API, and is being developed to this day.

Setup

You must have Lua (5.2+), lua-socket, lua-sec, and lua-cjson installed. To upload files, you must have curl installed. To use fortune.lua, you must have fortune installed.

Before doing anything, open config.lua and set bot_api_key to the authentication token you received from the Botfather.

You may want to set: admin, your Telegram ID; time_offset, a positive or negative number, denoting the difference, in seconds, of your system clock to UTC; and lang, a lowercase, two-letter code representing your language. Some plugins are not enabled by default. If you wish to enable them, add them to the plugins table (before help.lua).

To start the bot, run ./launch.sh. To stop the bot, send "/halt" from your admin account, and then Ctrl+C out of the loop. If you terminate the bot manually, you risk data loss. If you do not wish the bot to restart automatically, run it with lua bot.lua.

Note that certain plugins, such as translate.lua and greetings.lua, will require privacy mode to be disabled. Additionally, some plugins may require or make use of various API keys:

• weather.lua: OpenWeatherMap API key
• lastfm.lua: last.fm API key
• bible.lua: Biblia API key
• cats.lua: The Cat API API key (optional)
• gImages.lua: Google API and CSE keys
• youtube.lua: Google API key
• apod.lua: NASA API key
• translate.lua: Yandex API key
• chatter.lua: SimSimi API key

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Plugins

otouto uses a robust plugin system, similar to that of yagop's Telegram-Bot. The aim of the otouto project is to contain any desirable bot feature within one universal bot framework.

Most plugins are intended for public use, but a few are for other purposes, like those used alongside Liberbot, or for use by the bot's owner. See Development for a breakdown of the components of a plugin, or here for a list of plugins.

A plugin can have five components, and two of them are required:

Component	Description	Required?
action	The main function. It accepts the msg table as an argument.	Y
triggers	A table of commands to be used for the plugin. Use Lua patterns.	Y
cron	An optional function to be called approximately every minute.	N
command	The basic command and syntax. This is listed in the help text.	N
doc	Usage and other info for the plugin. This is returned with "/help command"	N

The on_msg_receive() function adds a few variables to the msg table for your convenience. These are self-explanatory: msg.from.id_str, msg.to.id_str, msg.chat.id_str, msg.text_lower, msg.from.name.

Return values from action() are optional, but they do effect the flow. If it returns a table, that table will become msg, and on_msg_receive will continue with that. If it returns true, it will continue with the current msg.

When an action or cron function fails, the exception is caught and passed to the handle_exception() utilty (in utilities.lua) and is either printed to the console or send to the chat/channel defined in log_chat in config.lua.

Interactions with the bot API are straightforward. Every binding function shares the name of the API method (eg sendMessage()). An additional function, sendReply(), accepts the msg table and a string as an argument, and sends the string as a reply to that message.

Several functions used in multiple plugins are defined in utilities.lua. Refer to that file for usage and documentation.

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Control plugins

Some plugins are designed to be used by the bot's owner. Here are some examples, how they're used, and what they do.

Plugin	Command	Function
control.lua	/reload	Reloads all plugins and configuration.
control.lua	/halt	Saves the database and shuts down the bot properly.
blacklist.lua	/blacklist	Allows the admin to list people the bot will ignore.
shell.lua	/run	Executes shell commands on the host operating system.
luarun.lua	/lua	Executes Lua commands in the bot's environement.

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administration.lua

The administration plugin enables self-hosted, single-realm group administration, supporting both normal groups and supergroups. This works by sending TCP commands to an instance of tg running on the owner's account.

To get started, run ./tg-install.sh. Note that this script is written for Ubuntu/Debian. If you're running Arch (the only acceptable alternative), you'll have to do it yourself. If that is the case, note that otouto uses the "test" branch of tg, and the AUR package telegram-cli-git will not be sufficient, as it does not have support for supergroups yet.

Once the installation is finished, enable administration.lua in your config file. You may have reason to change the default TCP port (4567); if that is the case, remember to change it in tg-launch.sh as well. Run ./tg-launch.sh in a separate screen/tmux window. You'll have to enter your phone number and go through the login process the first time. The script is set to restart tg after two seconds, so you'll need to Ctrl+C after exiting.

While tg is running, you may start/reload otouto with administration.lua enabled, and have access to a wide variety of administrative commands and automata. The administration "database" is stored in administration.json. To start using otouto to administrate a group (note that you must be the owner (or an administrator)), send /gadd to that group. For a list of commands, use /ahelp. Below I'll describe various functions now available to you.

Command	Function	Privilege	Internal?
/groups	Returns a list of administrated groups (except those flagged "unlisted".	1	N
/ahelp	Returns a list of administrative commands and their required privileges.	1	Y
/ops	Returns a list of moderators, governors, and administrators.	1	Y
/desc	Returns the link, rules, MOTD, and enabled flags of a group.	1	Y
/rules	Returns the rules of a group.	1	Y
/motd	Returns a group's "Message of the Day".	1	Y
/link	Returns the link for a group.	1	Y
/leave	Removes the user from the group.	1	Y
/kick	Removes the target from the group.	2	Y
/ban	Bans the target from the group.	2	Y
/unban	Unbans the target from the group.	2	Y
/changerule	Changes an individual group rule.	3	Y
/setrules	Sets the rules for a group.	3	Y
/setmotd	Sets a group's "Message of the Day".	3	Y
/setlink	Sets a group's link.	3	Y
/flag	Returns a list of available flags and their settings, or toggles a flag.	3	Y
/mod	Promotes a user to a moderator.	3	Y
/demod	Demotes a moderator to a user.	3	Y
/gov	Promotes a user to a governor.	4	Y
/degov	Demotes a governor to a user.	4	Y
/hammer	Bans a user globally, and blacklists him.	4	N
/unhammer	Removes a user's global ban, and unblacklists him.	4	N
/admin	Promotes a user to an administrator.	5	N
/deadmin	Demotes an administrator to a user.	5	N
/gadd	Adds a group to the administrative system.	5	N
/grem	Removes a group from the administrative system	5	Y
/broadcast	Broadcasts a message to all administrated groups.	5	N

Internal commands can only be run within an administrated group.

Description of Privileges

#	Title	Description	Scope
0	Banned	Cannot enter the group(s).	Either
1	User	Default rank.	Local
2	Moderator	Can kick/ban/unban users from a group.	Local
3	Governor	Can set rules/motd/link. Can promote/demote moderators. Can modify flags.	Local
4	Administrator	Can globally ban/unban users. Can promote/demote governors.	Global
5	Owner	Can add/remove groups. Can broadcast. Can promote/demote administrators.	Global

Obviously, each greater rank inherits the privileges of the lower, positive ranks.

Flags

#	Name	Description
1	unlisted	Removes a group from the /groups listing.
2	antisquig	Automatically removes users for posting Arabic script or RTL characters.
3	antisquig Strict	Automatically removes users whose names contain Arabic script or RTL characters.
4	antibot	Prevents bots from being added by non-moderators.

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Liberbot-related plugins

Note: This section may be out of date. The Liberbot-related plugins have not changed in very long time. Some plugins are only useful when the bot is used in a Liberbot group, like floodcontrol.lua and moderation.lua.

floodcontrol.lua makes the bot compliant with Liberbot's floodcontrol function. When the bot has posted too many messages to a single group in a given period of time, Liberbot will send it a message telling it to cease posting in that group. Here is an example floodcontrol command: /floodcontrol {"groupid":987654321,"duration":600} The bot will accept these commands from both Liberbot and the configured administrator.

moderation.lua allows the owner to use the bot to moderate a Liberbot realm, or set of groups. This works by adding the bot to the realm's admin group and making it an administrator. You must configure the plugin in the "moderation" section of config.lua, in the following way:

moderation = {
    admins = {
        ['123456789'] = 'Adam',
        ['246813579'] = 'Eve'
    },
    admin_group = -987654321,
    realm_name = 'My Realm'
}

Where Adam and Eve are realm administrators, and their IDs are set as their keys in the form of strings. admin_group is the group ID of the admin group, as a negative number. realm_name is the name of your Libebot realm.

Once this is set up, put your bot in the admin group and run /modadd and /modhelp to get started.

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List of plugins

Plugin	Command	Function	Aliases
help.lua	/help	Returns a list of commands.	/h
about.lua	/about	Returns the about text as configured in config.lua.
ping.lua	/ping	The simplest plugin ever!
echo.lua	/echo	Repeats a string of text.
gSearch.lua	/google	Returns Google web results.	/g, /gnsfw
gImages.lua	/images	Returns a Google image result.	/i, /insfw
gMaps.lua	/location	Returns location data from Google Maps.	/loc
youtube.lua	/youtube	Returns the top video result from YouTube.	/yt
wikipedia.lua	/wikipedia	Returns the summary of a Wikipedia article.	/wiki
lastfm.lua	/np [username]	Returns the song you are currently listening to.
lastfm.lua	/fmset [username]	Sets your username for /np. /fmset -- will delete it.
hackernews.lua	/hackernews	Returns the latest posts from Hacker News.	/hn
imdb.lua	/imdb	Returns film information from IMDb.
hearthstone.lua	/hearthstone	Returns data for Hearthstone cards matching the query.	/hs
calc.lua	/calc	Returns solutions to math expressions and conversions between common units.
bible.lua	/bible	Returns a Bible verse.	/b
urbandictionary.lua	/urbandictionary	Returns the top definition from Urban Dictionary.	/ud, /urban
time.lua	/time	Returns the time, date, and a timezone for a location.
weather.lua	/weather	Returns current weather conditions for a given location.
nick.lua	/nick	Set your nickname. /nick - will delete it.
whoami.lua	/whoami	Returns user and chat info for you or the replied-to user.	/who
eightball.lua	/8ball	Returns an answer from a magic 8-ball.
dice.lua	/roll	Returns RNG dice rolls. Uses D&D notation.
reddit.lua	/reddit [r/subreddit ¦ query]	Returns the top results from a given subreddit, query, or r/all.	/r
xkcd.lua	/xkcd [query]	Returns an xkcd strip and its alt text.
slap.lua	/slap	Gives someone a slap (or worse).
commit.lua	/commit	Returns a commit message from whatthecommit.com.
fortune.lua	/fortune	Returns a UNIX fortune.
pun.lua	/pun	Returns a pun.
pokedex.lua	/pokedex	Returns a Pokedex entry.	/dex
currency.lua	/cash [amount] to	Converts one currency to another.
cats.lua	/cat	Returns a cat picture.
reactions.lua	/reactions	Returns a list of reaction emoticons which can be used through the bot.
apod.lua	/apod [date]	Returns the NASA Astronomy Picture of the Day.
dilbert.lua	/dilbert [date]	Returns a Dilbert strip.
patterns.lua	/s///	Fixed that for you. :^)

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Style

Bot output from every plugin should follow a consistent style. This style is easily observed interacting with the bot. Titles should be either bold (along with their colons) or a link (with plaintext colons) to the content's source. Names should be italic. Numbered lists should use bold numbers followed by a bold period followed by a space. Unnumbered lists should use the • bullet point followed by a space. Descriptions and information should be in plaintext, although "flavor" text should be italic. Technical information should be monospace. Links should be named.

Contributors

Everybody is free to contribute to otouto. If you are interested, you are invited to fork the repo and start making pull requests.. If you have an idea and you are not sure how to implement it, open an issue or bring it up in the Bot Development group.

The creator and maintainer of otouto is topkecleon. He can be contacted via Telegram, Twitter, or email.

There are a a few ways to contribute if you are not a programmer. For one, your feedback is always appreciated. Drop me a line on Telegram or on Twitter. Secondly, we are always looking for new ideas for plugins. Most new plugins start with community input. Feel free to suggest them on Github or in the Bot Dev group. You can also donate Bitcoin to the following address: 1BxegZJ73hPu218UrtiY8druC7LwLr82gS

Contributions are appreciated in any form. Monetary contributions will go toward server costs. Both programmers and donators will be eternally honored (at their discretion) on this page.

Developers	Donators
Juan Potato	n8
Tiago Danin	Alex
Ender	Brayden Banks
Iman Daneshi
HeitorPB