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#!/usr/local/bin/bash
# ---------------------------------------------------------------------------
# makeuser - tilde.institute new user creation
# Usage: makeuser [-h|--help] <username> <email> "<pubkey>"
# ben@gbmor.dev
# ---------------------------------------------------------------------------
PROGNAME=${0##*/}
VERSION="0.1"
error_exit() {
echo -e "${PROGNAME}: ${1:-"Unknown Error"}" >&2
exit 1
}
usage() {
echo -e "usage: $PROGNAME [-h|--help] <username> <email> \"<pubkey>\""
}
[[ $(id -u) != 0 ]] && error_exit "you must be the superuser to run this script."
USERLIST=$(</etc/passwd cut -d ":" -f1)
if [[ $USERLIST == *$1* ]]; then
error_exit "User already exists!"
fi
case $1 in
-h | --help)
usage; exit ;;
-* | --*)
usage; error_exit "unknown option $1" ;;
*)
[[ $# -ne 3 ]] && error_exit "not enough args"
# generate a random 20 digit password
# encrypt the password and pass it to
# useradd, set ksh as default shell
echo "adding new user $1"
newpw=$(pwgen -1B 20)
pwcrypt=$(encrypt ${newpw})
useradd -m -g 1001 -p $pwcrypt -s /bin/ksh -k /etc/skel $1
# make the public_html directory for the users
mkdir /var/www/users/$1
chown $1:tilde /var/www/users/$1
ln -s /var/www/users/$1 /home/$1/public_html
# set up the httpd configuration for
# individual users. this config forces tls
# for all subdomains
echo "server \"$1.tilde.institute\" {
listen on \$ext_addr port 80 block return 301 \"https://\$SERVER_NAME\$REQUEST_URI\"
}
server \"$1.tilde.institute\" {
listen on \$ext_addr tls port 443
root \"/users/$1\"
tls {
key \"/etc/letsencrypt/live/tilde.institute-0001/privkey.pem\"
certificate \"/etc/letsencrypt/live/tilde.institute-0001/fullchain.pem\"
}
directory index index.html
directory auto index
location \"/*.cgi\" {
fastcgi
}
location \"/*.php\" {
fastcgi socket \"/run/php-fpm.sock\"
}
}" > /etc/httpd/$1.conf
# add the user's vhost config to
# the main httpd config then gracefully
# reload the httpd config
echo "include \"/etc/httpd/$1.conf\"" >> /etc/httpd-vusers.conf
httpdpid=`pgrep httpd | awk 'NR==1{print $1}'`
kill -HUP $httpdpid
# send welcome email
sed -e "s/newusername/$1/g" /admin/misc/email.tmpl | doas -u admins mail -s "welcome to tilde.institute!" $2
# subscribe to mailing list
echo " " | doas -u $1 mail -s "subscribe" institute-join@lists.tildeverse.org
# announce the new user's creation on mastodon
# then copy their ssh key to their home directory
/admin/bin/toot.py "Welcome new user ~$1!"
echo "$3" | tee /home/$1/.ssh/authorized_keys
esac
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