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mailinabox/setup/mods.available/remote-nextcloud.sh

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#!/bin/bash
#####
##### This file is part of Mail-in-a-Box-LDAP which is released under the
##### terms of the GNU Affero General Public License as published by the
##### Free Software Foundation, either version 3 of the License, or (at
##### your option) any later version. See file LICENSE or go to
##### https://github.com/downtownallday/mailinabox-ldap for full license
##### details.
#####
source setup/functions.sh # load our functions
source /etc/mailinabox.conf # load global vars
# maintain a separate conf file because setup rewrites mailinabox.conf
touch /etc/mailinabox_mods.conf
. /etc/mailinabox_mods.conf
# where webmail.sh installs roundcube
RCM_DIR=/usr/local/lib/roundcubemail
RCM_PLUGIN_DIR=${RCM_DIR}/plugins
# where zpush.sh installs z-push
ZPUSH_DIR=/usr/local/lib/z-push
configure_zpush() {
# have zpush use the remote nextcloud for carddav/caldav
# instead of the nextcloud that comes with mail-in-a-box
cp setup/mods.available/conf/zpush/backend_carddav.php $ZPUSH_DIR/backend/carddav/config.php
cp setup/mods.available/conf/zpush/backend_caldav.php $ZPUSH_DIR/backend/caldav/config.php
local var val
for var in NC_PROTO NC_HOST NC_PORT NC_PREFIX; do
eval "val=\$$var"
sed -i "s^$var^${val%/}^g" $ZPUSH_DIR/backend/carddav/config.php
sed -i "s^$var^${val%/}^g" $ZPUSH_DIR/backend/caldav/config.php
done
}
configure_roundcube() {
# replace the plugin configuration from the default Mail-In-A-Box
local name="${1:-$NC_HOST}"
local baseurl="$NC_PROTO://$NC_HOST:$NC_PORT$NC_PREFIX"
# Configure CardDav plugin
#
# 1. make MiaB ownCloud contacts read-only so users can still
# access them, but not change them, and no sync occurs
#
# a. set 'active' to 'false'
# regular expression before "bashing" it:
# (['"]active['"][ \t]*=>[ \t]*)true
#
sed -i 's/\(['"'"'"]active['"'"'"][ \t]*=>[ \t]*\)true/\1false/' ${RCM_PLUGIN_DIR}/carddav/config.inc.php
# b. set 'readonly' to 'true'
# regular expressions is like above
sed -i 's/\(['"'"'"]readonly['"'"'"][ \t]*=>[ \t]*\)false/\1true/' ${RCM_PLUGIN_DIR}/carddav/config.inc.php
# c. add 'rediscover_mode' => 'none'
if ! grep -F 'rediscover_mode' ${RCM_PLUGIN_DIR}/carddav/config.inc.php >/dev/null; then
sed -i 's/^\([ \t]*['"'"'"]readonly['"'"'"][ \t]*=>.*\)$/\1\n\t '\''rediscover_mode'\'' => '\''none'\'',/' ${RCM_PLUGIN_DIR}/carddav/config.inc.php
fi
#
# 2. add the remote Nextcloud
#
cat >> ${RCM_PLUGIN_DIR}/carddav/config.inc.php <<EOF
<?php
/* Do not edit. Written by Mail-in-a-Box-LDAP. Regenerated on updates. */
//\$prefs['_GLOBAL']['hide_preferences'] = true;
//\$prefs['_GLOBAL']['suppress_version_warning'] = true;
\$prefs['cloud'] = array(
'name' => '$name',
'username' => '%u', // login username
'password' => '%p', // login password
'url' => '${baseurl%/}/remote.php/dav/addressbooks/users/%u/contacts/',
'active' => true,
'readonly' => false,
'refresh_time' => '02:00:00',
'fixed' => array('username','password'),
'preemptive_auth' => '1',
'hide' => false,
);
?>
EOF
}
update_mobileconfig() {
local url="$1"
sed -i "s|<string>/cloud/remote.php|<string>${url%/}/remote.php|g" /var/lib/mailinabox/mobileconfig.xml
}
remote_nextcloud_handler() {
echo ""
echo "============================"
echo "Configure a remote Nextcloud"
echo "============================"
echo 'Enter the url or hostname and web prefix of your remote Nextcloud'
echo 'For example:'
echo ' "cloud.mydomain.com/" - Nextcloud server with no prefix'
echo ' "cloud.mydomain.com" - same as above'
echo ' "www.mydomain.com/cloud" - a Nextcloud server having a prefix /cloud'
echo ''
local ans
local current_url=""
if [ -z "${NC_HOST:-}" ]; then
if [ -z "${NONINTERACTIVE:-}" ]; then
read -p "[your Nextcloud's hostname/prefix] " ans
fi
[ -z "$ans" ] && return 0
else
current_url="$NC_PROTO://$NC_HOST:$NC_PORT$NC_PREFIX"
if [ -z "${NONINTERACTIVE:-}" ]; then
read -p "[$current_url] " ans
if [ -z "$ans" ]; then
ans="$current_url"
elif [ "$ans" == "none" ]; then
ans=""
fi
else
ans="$current_url"
fi
fi
case "$ans" in
https://* )
NC_PROTO="https"
NC_PORT="443"
ans="$(awk -F: '{print substr($0,9)}' <<< "$ans")"
;;
http://* )
NC_PROTO="http"
NC_PORT="80"
ans="$(awk -F: '{print substr($0,8)}' <<< "$ans")"
;;
* )
NC_PROTO="https"
NC_PORT="443"
;;
esac
NC_PREFIX="/$(awk -F/ '{print substr($0,length($1)+2)}' <<< "$ans")"
NC_HOST="$(awk -F/ '{print $1}' <<< "$ans")"
if grep ":" <<< "$NC_HOST" >/dev/null; then
NC_PORT="$(awk -F: '{print $2}' <<< "$NC_HOST")"
NC_HOST="$(awk -F: '{print $1}' <<< "$NC_HOST")"
fi
local new_url="$NC_PROTO://$NC_HOST:$NC_PORT$NC_PREFIX"
if [ ! -z "$NC_HOST" ]; then
echo ""
echo "Enter the source ip addresses, separated by spaces, that your remote Nextcloud uses to perform ldap queries. Include ip4 and ip6 addresses. Typically you'd leave this blank, unless you have a proxy in front of Nextcloud."
ans=""
if [ -z "${NC_HOST_SRC_IP:-}" ]; then
if [ -z "${NONINTERACTIVE:-}" ]; then
read -p "[your Nextcloud's source IP address for ldap queries] " ans
fi
else
if [ -z "${NONINTERACTIVE:-}" ]; then
read -p "[$NC_HOST_SRC_IP] " ans
fi
if [ -z "$ans" ]; then
ans="$NC_HOST_SRC_IP"
elif [ "$ans" = "none" ]; then
ans=""
fi
fi
NC_HOST_SRC_IP="$ans"
if [ -z "$NC_HOST_SRC_IP" ]; then
echo "Using Nextcloud ${new_url}"
else
echo "Using Nextcloud ${new_url} (but, the source ip of ldap queries will come from $NC_HOST_SRC_IP)"
fi
# configure roundcube contacts
configure_roundcube "$NC_HOST"
# configure zpush (which links to contacts & calendar)
configure_zpush
# update ios mobileconfig.xml
update_mobileconfig "$new_url"
# prevent nginx from serving any miab-installed nextcloud
# files and remove owncloud cron job
chmod 000 /usr/local/lib/owncloud
rm -f /etc/cron.d/mailinabox-nextcloud
# allow the remote nextcloud access to our ldap server
# 1. remove existing firewall rules
local from_ips=( $(ufw status | awk '/remote_nextcloud/ {print $3}') )
for ip in "${from_ips[@]}"; do
hide_output ufw delete allow proto tcp from "$ip" to any port ldaps
done
# 2. add new firewall rules
#
# if the ip address used by the Nextcloud server to contact
# this host with ldap queries is different than the one used
# by MiaB to interact with Nextcloud (eg. an nginx proxy in
# front of Nextcloud), then set NC_HOST_SRC_IP as an array of
# host or ip address expected to be used by the source
local ip
if [ ! -z "${NC_HOST_SRC_IP:-}" ]; then
from_ips=( $NC_HOST_SRC_IP )
else
from_ips=(
$(getent ahostsv4 "$NC_HOST" | head -1 | awk '{print $1}')
$(getent ahostsv6 "$NC_HOST" | head -1 | awk '{print $1}')
)
fi
for ip in "${from_ips[@]}"; do
hide_output ufw allow proto tcp from "$ip" to any port ldaps comment "remote_nextcloud"
done
fi
tools/editconf.py /etc/mailinabox_mods.conf \
"NC_PROTO=$NC_PROTO" \
"NC_HOST=$NC_HOST" \
"NC_PORT=$NC_PORT" \
"NC_PREFIX=$NC_PREFIX" \
"NC_HOST_SRC_IP='${NC_HOST_SRC_IP:-}'"
# Hook the management daemon, even if no remote nextcloud
# (NC_HOST==''). Must be done after writing mailinabox_mods.conf
# 1. install hooking code
install_hook_handler "setup/mods.available/hooks/remote-nextcloud-mgmt-hooks.py"
# 2. trigger hooking code for a web_update event, which updates
# the systems nginx configuration
tools/web_update
}
remote_nextcloud_handler
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