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Added Telegram support

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During the install you can set up Telegram supports and make a bot send 
a message to a group chat when clients connect or disconnect. This NEEDS 
to be tested.
This commit is contained in:
ShutdownRepo 2020-04-06 17:53:32 +02:00
parent 5229459f99
commit 84221091ae
2 changed files with 59 additions and 4 deletions
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3
README.md
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@ -3,6 +3,9 @@ OpenVPN [road warrior](http://en.wikipedia.org/wiki/Road_warrior_%28computing%29
This script will let you setup your own VPN server in no more than a minute, even if you haven't used OpenVPN before. It has been designed to be as unobtrusive and universal as possible.
### Telegram-support
During the install you can set up Telegram supports and make a bot send a message to a group chat when clients connect or disconnect.
### Installation
Run the script and follow the assistant:

60
openvpn-install.sh
View file

@ -90,7 +90,7 @@ if [[ -e /etc/openvpn/server/server.conf ]]; then
read -p "Select an option: " option
done
case "$option" in
1)
1)
echo
echo "Tell me a name for the client certificate."
read -p "Client name: " unsanitized_client
@ -148,7 +148,7 @@ if [[ -e /etc/openvpn/server/server.conf ]]; then
fi
exit
;;
3)
3)
echo
read -p "Do you really want to remove OpenVPN? [y/N]: " remove
until [[ "$remove" =~ ^[yYnN]*$ ]]; do
@ -259,10 +259,10 @@ else
read -p "Protocol [1]: " protocol
done
case "$protocol" in
1|"")
1|"")
protocol=udp
;;
2)
2)
protocol=tcp
;;
esac
@ -490,6 +490,58 @@ cipher AES-256-CBC
ignore-unknown-option block-outside-dns
block-outside-dns
verb 3" > /etc/openvpn/server/client-common.txt
echo "Telegram support enables the server to send messages on a Telegram channel with a bot when clients connect/disconnect."
echo "If you want Telegram support, you'll need to create a bot and a group (instructions will be given) and have Python support on this server."
read -p "Do you want Telegram support ? [y/N] : " telegram_support
until [[ "$telegram_support" =~ ^[yYnN]*$ ]]; do
echo "$telegram_support: invalid selection."
read -p "Do you want Telegram support ? [y/N] : " telegram_support
done
if [[ "$telegram_support" =~ ^[yY]$ ]]; then
echo "In order to function properly, Telegram supports needs two sets of data: a bot token and a group id"
echo "How to create a bot and find the token"
echo " 1. Open a Telegram client"
echo " 2. Start a conversation with @BotFather"
echo " 3. Send the following command : /newbot"
echo " 4. Send the name of your bot (anything you want)"
echo " 5. Send the username of your bot (must be unique, and end with 'bot')"
echo " 6. The bot is created and the token to access the HTTP API is sent to you"
read -p "What is your bot token ? : " telegram_bot_token
echo "How to find the group id"
echo " 1. Create the group your want the bot to send messages to"
echo " 2. Add the bot to the group with its username (@username)"
echo " 3. Send the following message in the group : /my_id @username"
echo " 4. Go to https://api.telegram.org/bot<bot_token>/getUpdates and replace <bot_token> with yours"
echo " 5. In the JSON array, find the message/chat/id negative integer composed of 9 figures, this is your group ID"
read -p "What is the group ID ? : " telegram_group_id
touch /usr/bin/ovpn-client-connect /usr/bin/ovpn-client-disconnect
pip install python-telegram-bot
echo '#!/usr/bin/env python' > /usr/bin/ovpn-client-connect
echo 'import telegram' >> /usr/bin/ovpn-client-connect
echo 'import os' >> /usr/bin/ovpn-client-connect
echo "bot = telegram.Bot(token=\'$telegram_bot_token\')" >> /usr/bin/ovpn-client-connect
echo "server_ip = os.popen('curl ifconfig.me').read()" >> /usr/bin/ovpn-client-connect
echo "client_name = str(os.getenv('common_name'))" >> /usr/bin/ovpn-client-connect
echo "client_real_ip = str(os.getenv('trusted_ip'))" >> /usr/bin/ovpn-client-connect
echo "client_virtual_ip = str(os.getenv('ifconfig_pool_remote_ip'))" >> /usr/bin/ovpn-client-connect
echo 'message = "*[OpenVPN Server : " + server_ip + "]* client *" + client_name + "* is connected (is *" + client_real_ip + "* and has *" + client_virtual_ip + "*)"' >> /usr/bin/ovpn-client-connect
echo "bot.send_message('-421685619', message, parse_mode=telegram.ParseMode.MARKDOWN)" >> /usr/bin/ovpn-client-connect
echo '#!/usr/bin/env python' > /usr/bin/ovpn-client-disconnect
echo 'import telegram' >> /usr/bin/ovpn-client-disconnect
echo 'import os' >> /usr/bin/ovpn-client-disconnect
echo "bot = telegram.Bot(token=\'$telegram_bot_token\')" >> /usr/bin/ovpn-client-disconnect
echo "server_ip = os.popen('curl ifconfig.me').read()" >> /usr/bin/ovpn-client-disconnect
echo "client_name = str(os.getenv('common_name'))" >> /usr/bin/ovpn-client-disconnect
echo "client_real_ip = str(os.getenv('trusted_ip'))" >> /usr/bin/ovpn-client-disconnect
echo "client_virtual_ip = str(os.getenv('ifconfig_pool_remote_ip'))" >> /usr/bin/ovpn-client-disconnect
echo 'message = "*[OpenVPN Server : " + server_ip + "]* client *" + client_name + "* has disconnected (was *" + client_real_ip + "* and had *" + client_virtual_ip + "*")' >> /usr/bin/ovpn-client-disconnect
echo "bot.send_message('-421685619', message, parse_mode=telegram.ParseMode.MARKDOWN)" >> /usr/bin/ovpn-client-disconnect
chown nobody:root /usr/bin/ovpn-client-connect /usr/bin/ovpn-client-disconnect
chmod +x nobody:root /usr/bin/ovpn-client-connect /usr/bin/ovpn-client-disconnect
echo "script-security 2" >> /etc/openvpn/server/server.conf
echo "client-connect /usr/bin/ovpn-client-connect" >> /etc/openvpn/server/server.conf
echo "client-disconnect /usr/bin/ovpn-client-disconnect" >> /etc/openvpn/server/server.conf
fi
# Enable and start the OpenVPN service
systemctl enable --now openvpn-server@server.service
# Generates the custom client.ovpn