mirror of
https://github.com/octoleo/telegram-bot-bash.git
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128 lines
4.5 KiB
Plaintext
128 lines
4.5 KiB
Plaintext
bashbot
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-------
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A Telegram bot written in bash.
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Written by Drew (@topkecleon), Daniil Gentili (@danogentili), and Kay M
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(@gnadelwartz).
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Contributions by JuanPotato, BigNerd95, TiagoDanin, and iicc1.
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Released to the public domain wherever applicable. Elsewhere, consider
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it released under the http://www.wtfpl.net/txt/copying/[WTFPLv2].
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Prerequisites
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~~~~~~~~~~~~~
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Depends on http://github.com/tmux/tmux[tmux]. Uses
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http://github.com/dominictarr/JSON.sh[JSON.sh].
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Most complete link:doc/4_expert.md#Bashbot-UTF-8-Support[UTF-8 support
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for bashbot] is availible if phyton is installed (optional).
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Bashbot https://github.com/topkecleon/telegram-bot-bash[Documentation]
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and https://github.com/topkecleon/telegram-bot-bash/releases[Downloads]
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are availible on www.github.com
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Documentation
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~~~~~~~~~~~~~
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* link:doc/0_install.md[Install Bashbot]
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** Install release
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** Install from githup
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** Update Bashbot
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** Notes on Updates
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* link:doc/1_firstbot.md[Create a new Telegram Bot with botfather]
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* link:doc/2_usage.md[Getting Started]
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** Managing your Bot
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** Recieve data
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** Send messages
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** Send files, locations, keyboards
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* link:doc/3_advanced.md[Advanced Features]
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** Access Control
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** Interactive Chats
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** Background Jobs
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** Inline queries
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* link:doc/4_expert.md[Expert Use]
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** Handling UTF-8 character sets
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** Run as other user or system service
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** Scedule bashbot from Cron
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* link:doc/5_practice.md[Best Practices]
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** Customize commands.sh
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** Seperate logic from commands
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** Test your Bot with shellcheck
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* link:doc/6_reference.md[Bashbot function reference]
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* link:doc/7_develop.md[Notes for bashbot developers]
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* link:doc/8_customize.md[Customize bashbot environment]
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Security Considerations
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~~~~~~~~~~~~~~~~~~~~~~~
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Running a Telegram Bot means it is connected to the public and you never
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know whats send to your Bot.
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Bash scripts in general are not designed to be bullet proof, so consider
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this Bot as a proof of concept. More concret examples of security
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problems are: bash's 'quoting hell' and globbing.
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https://unix.stackexchange.com/questions/171346/security-implications-of-forgetting-to-quote-a-variable-in-bash-posix-shells[Implications
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of wrong quoting]
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Whenever you are processing input from from untrusted sources (messages,
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files, network) you must be as carefull as possible, e.g. set IFS
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appropriate, disable globbing (set -f) and quote everthing. In addition
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disable not used Bot commands and delete unused scripts from your Bot,
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e.g. example scripts 'notify', 'calc', 'question',
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A powerful tool to improve your scripts robustness is `shellcheck`. You
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can https://www.shellcheck.net/[use it online] or
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https://github.com/koalaman/shellcheck#installing[install shellcheck
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locally]. All bashbot scripts are checked by shellcheck.
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Run your Bot as a restricted user
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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*I recommend to run your bot as a user, with almost no access rights.*
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All files your Bot have write access to are in danger to be
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overwritten/deleted if your bot is hacked. For the same reason ervery
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file your Bot can read is in danger to be disclosed. Restict your Bots
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access rigths to the absolute minimum.
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*Never run your Bot as root, this is the most dangerous you can do!*
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Usually the user 'nobody' has almost no rights on Unix/Linux systems.
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See link:doc/4_expert.md[Expert use] on how to run your Bot as an other
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user.
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Secure your Bot installation
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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*Your Bot configuration must no be readable from other users.* Everyone
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who can read your Bots token can act as your Bot and has access to all
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chats your Bot is in!
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Everyone with read access to your Bot files can extract your Bots data.
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Especially your Bot Token in `token` must be protected against other
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users. No one exept you must have write access to the Bot files. The Bot
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must be restricted to have write access to `count` and `tmp-bot-bash`
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only, all other files must be write protected.
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To set access rights for your bashbot installation to a reasonable
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default run `sudo ./bashbot.sh init` after every update or change to
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your installation directory.
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Is this Bot insecure?
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^^^^^^^^^^^^^^^^^^^^^
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Bashbot is not more (in)secure as any other Bot written in any other
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language, we have done our best to make it as secure as possible. But
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YOU are responsible for the bot commands you wrote and you should know
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about the risks ...
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That's it!
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~~~~~~~~~~
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If you feel that there's something missing or if you found a bug, feel
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free to submit a pull request!
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latexmath:[\[VERSION\]] v0.70-dev2-24-gfe4fb34
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++++++++++++++++++++++++++++++++++++++++++++++
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