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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:


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.


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.

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.

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.


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. :^)

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