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#!/bin/bash
# NextCloudPi additions to Raspbian
#
# Copyleft 2017 by Ignacio Nunez Hernanz <nacho _a_t_ ownyourbits _d_o_t_ com>
# GPL licensed (see end of file) * Use at your own risk!
#
# Usage:
#
# ./installer.sh ncp.sh <IP> (<img>)
#
# See installer.sh instructions for details
#
# More at https://ownyourbits.com/2017/02/13/nextcloud-ready-raspberry-pi-image/
#
WEBADMIN=ncp
WEBPASSWD=ownyourbits
BRANCH=master
CONFDIR=/usr/local/etc/ncp-config.d/
APTINSTALL="apt-get install -y --no-install-recommends"
export DEBIAN_FRONTEND=noninteractive
install()
{
# NCP-CONFIG
apt-get update
$APTINSTALL dialog whiptail
mkdir -p $CONFDIR
# include option in raspi-config (only Raspbian)
test -f /usr/bin/raspi-config && {
sed -i '/Change User Password/i"0 NextCloudPi Configuration" "Configuration of NextCloudPi" \\' /usr/bin/raspi-config
sed -i '/1\\ \*) do_change_pass ;;/i0\\ *) ncp-config ;;' /usr/bin/raspi-config
}
# add the ncc shortcut
cat >> /usr/local/bin/ncc <<'EOF'
#!/bin/bash
sudo -u www-data php /var/www/nextcloud/occ "$@"
EOF
chmod +x /usr/local/bin/ncc
# NCP-WEB
## VIRTUAL HOST
cat > /etc/apache2/sites-available/ncp-activation.conf <<EOF
<VirtualHost _default_:443>
DocumentRoot /var/www/ncp-web/
SSLEngine on
SSLCertificateFile /etc/ssl/certs/ssl-cert-snakeoil.pem
SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key
</VirtualHost>
<Directory /var/www/ncp-web/>
<RequireAll>
<RequireAny>
Require host localhost
Require local
Require ip 192.168
Require ip 172
Require ip 10
</RequireAny>
</RequireAll>
</Directory>
EOF
cat > /etc/apache2/sites-available/ncp.conf <<EOF
Listen 4443
<VirtualHost _default_:4443>
DocumentRoot /var/www/ncp-web
SSLEngine on
SSLCertificateFile /etc/ssl/certs/ssl-cert-snakeoil.pem
SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key
# 2 days to avoid very big backups requests to timeout
TimeOut 172800
<IfModule mod_authnz_external.c>
DefineExternalAuth pwauth pipe /usr/sbin/pwauth
</IfModule>
</VirtualHost>
<Directory /var/www/ncp-web/>
AuthType Basic
AuthName "ncp-web login"
AuthBasicProvider external
AuthExternal pwauth
SetEnvIf Request_URI "^" noauth
SetEnvIf Request_URI "^index\.php$" !noauth
SetEnvIf Request_URI "^/$" !noauth
SetEnvIf Request_URI "^/wizard/index.php$" !noauth
SetEnvIf Request_URI "^/wizard/$" !noauth
<RequireAll>
<RequireAny>
Require host localhost
Require local
Require ip 192.168
Require ip 172
Require ip 10
</RequireAny>
<RequireAny>
Require env noauth
Require user $WEBADMIN
</RequireAny>
</RequireAll>
</Directory>
EOF
$APTINSTALL libapache2-mod-authnz-external pwauth
a2enmod authnz_external authn_core auth_basic
a2dissite nextcloud
a2ensite ncp-activation
## NCP USER FOR AUTHENTICATION
useradd --home-dir /nonexistent "$WEBADMIN"
echo -e "$WEBPASSWD\n$WEBPASSWD" | passwd "$WEBADMIN"
chsh -s /usr/sbin/nologin "$WEBADMIN"
## NCP LAUNCHER
mkdir -p /home/www
chown www-data:www-data /home/www
chmod 700 /home/www
cat > /home/www/ncp-launcher.sh <<'EOF'
#!/bin/bash
DIR=/usr/local/etc/ncp-config.d
test -f $DIR/$1 || { echo "File not found"; exit 1; }
source /usr/local/etc/library.sh
cd $DIR
launch_script $1
EOF
chmod 700 /home/www/ncp-launcher.sh
echo "www-data ALL = NOPASSWD: /home/www/ncp-launcher.sh , /sbin/halt, /sbin/reboot" >> /etc/sudoers
# NCP AUTO TRUSTED DOMAIN
mkdir -p /usr/lib/systemd/system
cat > /usr/lib/systemd/system/nextcloud-domain.service <<'EOF'
[Unit]
Description=Register Current IP as Nextcloud trusted domain
Requires=network.target
After=mysql.service
[Service]
ExecStart=/bin/bash /usr/local/bin/nextcloud-domain.sh
Restart=on-failure
RestartSec=5s
[Install]
WantedBy=multi-user.target
EOF
cat > /usr/local/bin/nextcloud-domain.sh <<'EOF'
#!/bin/bash
IFACE=$( ip r | grep "default via" | awk '{ print $5 }' | head -1 )
IP=$( ip a show dev "$IFACE" | grep global | grep -oP '\d{1,3}(.\d{1,3}){3}' | head -1 )
# wicd service finishes before completing DHCP
while [[ "$IP" == "" ]]; do
sleep 3
IP=$( ip a show dev "$IFACE" | grep global | grep -oP '\d{1,3}(.\d{1,3}){3}' | head -1 )
done
cd /var/www/nextcloud
sudo -u www-data php occ config:system:set trusted_domains 1 --value=$IP
EOF
# make sure this is called on last re-boot
[[ "$DOCKERBUILD" != 1 ]] && systemctl enable nextcloud-domain
# NEXTCLOUDPI UPDATES
cat > /etc/cron.daily/ncp-check-version <<EOF
#!/bin/sh
/usr/local/bin/ncp-check-version
EOF
chmod a+x /etc/cron.daily/ncp-check-version
touch /var/run/.ncp-latest-version
chown root:www-data /var/run/.ncp-latest-version
chmod g+w /var/run/.ncp-latest-version
# update to latest version from github as part of the build process
$APTINSTALL git
wget https://raw.githubusercontent.com/nextcloud/nextcloudpi/$BRANCH/bin/ncp-update -O /usr/local/bin/ncp-update
chmod a+x /usr/local/bin/ncp-update
/usr/local/bin/ncp-update $BRANCH
# ONLY FOR IMAGE BUILDS
if [[ -f /.ncp-image ]]; then
rm -rf /var/log/ncp.log
## NEXTCLOUDPI MOTD
rm -rf /etc/update-motd.d
mkdir /etc/update-motd.d
rm /etc/motd
ln -s /var/run/motd /etc/motd
cat > /etc/update-motd.d/10logo <<EOF
#!/bin/sh
echo
cat /usr/local/etc/ncp-ascii.txt
EOF
cat > /etc/update-motd.d/20updates <<'EOF'
#!/bin/bash
/usr/local/bin/ncp-check-updates
EOF
chmod a+x /etc/update-motd.d/*
## HOSTNAME AND mDNS
$APTINSTALL avahi-daemon
echo nextcloudpi > /etc/hostname
sed -i '$c127.0.1.1 nextcloudpi' /etc/hosts
## tag image
echo "NextCloudPi_$( date "+%m-%d-%y" )" > /usr/local/etc/ncp-baseimage
## SSH hardening
if [[ -f /etc/ssh/sshd_config ]]; then
sed -i 's|^#AllowTcpForwarding .*|AllowTcpForwarding no|' /etc/ssh/sshd_config
sed -i 's|^#ClientAliveCountMax .*|ClientAliveCountMax 2|' /etc/ssh/sshd_config
sed -i 's|^MaxAuthTries .*|MaxAuthTries 1|' /etc/ssh/sshd_config
sed -i 's|^#MaxSessions .*|MaxSessions 2|' /etc/ssh/sshd_config
sed -i 's|^#TCPKeepAlive .*|TCPKeepAlive no|' /etc/ssh/sshd_config
sed -i 's|^X11Forwarding .*|X11Forwarding no|' /etc/ssh/sshd_config
sed -i 's|^#LogLevel .*|LogLevel VERBOSE|' /etc/ssh/sshd_config
sed -i 's|^#Compression .*|Compression no|' /etc/ssh/sshd_config
sed -i 's|^#AllowAgentForwarding .*|AllowAgentForwarding no|' /etc/ssh/sshd_config
fi
## kernel hardening
cat >> /etc/sysctl.conf <<EOF
fs.protected_hardlinks=1
fs.protected_symlinks=1
kernel.core_uses_pid=1
kernel.dmesg_restrict=1
kernel.kptr_restrict=2
kernel.sysrq=0
net.ipv4.conf.all.accept_redirects=0
net.ipv4.conf.all.log_martians=1
net.ipv4.conf.all.rp_filter=1
net.ipv4.conf.all.send_redirects=0
net.ipv4.conf.default.accept_redirects=0
net.ipv4.conf.default.accept_source_route=0
net.ipv4.conf.default.log_martians=1
net.ipv4.tcp_timestamps=0
net.ipv6.conf.all.accept_redirects=0
net.ipv6.conf.default.accept_redirects=0
EOF
## other tweaks
sed -i "s|^UMASK.*|UMASK 027|" /etc/login.defs
fi
}
configure() { :; }
# License
#
# This script is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This script is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this script; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
# Boston, MA 02111-1307 USA
|