#!/bin/bash
#  _____               _           _
# |   __|___ ___ ___ _| |___ _____| |_ ___ ___ ___
# |   __|  _| -_| -_| . | . |     | . | . |   | -_|
# |__|  |_| |___|___|___|___|_|_|_|___|___|_|_|___|
#
#                              Freedom in the Cloud
#
# Command to upgrade the system
#
# License
# =======
#
# Copyright (C) 2015-2018 Bob Mottram <bob@freedombone.net>
#
# This program is free software: you can redistribute it and/or modify
# it 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.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

PROJECT_NAME='freedombone'

PROJECT_DIR="$HOME/${PROJECT_NAME}"

# An optional configuration file which overrides some of these variables
CONFIGURATION_FILE="$HOME/${PROJECT_NAME}.cfg"

PROJECT_REPO="https://code.freedombone.net/bashrc/${PROJECT_NAME}"

CURRENT_BRANCH=master

# Is letsencrypt updating its certificates?
# If yes then skip the upgrade to avoid any collisions
if [ -f ~/temp_renewletsencrypt.txt ]; then
    exit 0
fi

UTILS_FILES="/usr/share/${PROJECT_NAME}/utils/${PROJECT_NAME}-utils-*"
for f in $UTILS_FILES
do
    source "$f"
done

source "/usr/share/${PROJECT_NAME}/base/${PROJECT_NAME}-base-email"

read_config_param PROJECT_REPO
if [[ "$PROJECT_REPO" == "https://github.com/bashrc/${PROJECT_NAME}" ]]; then
    PROJECT_REPO="https://code.freedombone.net/bashrc/${PROJECT_NAME}"
    write_config_param PROJECT_REPO
fi
read_config_param DEVELOPMENT_BRANCH
read_config_param DEFAULT_DOMAIN_NAME

DEVELOPMENT_BRANCH=master
write_config_param "DEVELOPMENT_BRANCH" "$DEVELOPMENT_BRANCH"

if [ $DEVELOPMENT_BRANCH ]; then
    if [ ${#DEVELOPMENT_BRANCH} -gt 0 ]; then
        CURRENT_BRANCH=$DEVELOPMENT_BRANCH
    fi
fi

# upgrading file prevents USB canary or other jobs from activating
rm -rf /tmp/*
touch /tmp/.upgrading

if [ -f /usr/bin/backupdatabases ]; then
    if grep -q "cat /root/dbpass" /usr/bin/backupdatabases; then
        # update to using the password manager
        sed -i "s|cat /root/dbpass|${PROJECT_NAME}-pass -u root -a mariadb|g" /usr/bin/backupdatabases
    fi
fi

#update-ca-certificates

if [ ! -d "$PROJECT_DIR" ]; then
    git_clone "$PROJECT_REPO" "$PROJECT_DIR"
fi

if [ -d "$PROJECT_DIR" ]; then
    if [ -f "$CONFIGURATION_FILE" ]; then
        cd "$PROJECT_DIR" || exit 246823484
        rm -rf "$PROJECT_DIR/locale/"*
        if [[ "$CURRENT_BRANCH" == *"master" ]]; then
            git_pull $PROJECT_REPO
        else
            git_pull $PROJECT_REPO origin/$DEVELOPMENT_BRANCH
        fi
        git checkout stretch
        make install
        if [ -d /usr/share/${PROJECT_NAME} ]; then
            chown -R root:root /usr/share/${PROJECT_NAME}
            chmod -R +r /usr/share/${PROJECT_NAME}
        fi

        if ! ${PROJECT_NAME} -c "$CONFIGURATION_FILE"; then
            rm /tmp/.upgrading
            exit 453536
        fi

        #rebuild_exim_with_socks
        install_dynamicdns
        torrc_migrate
        nodejs_upgrade
        apt-get -yq -t stretch-backports install certbot
        email_install_tls
        email_disable_chunking
        remove_ip_addresses_from_email_logs
        rm /etc/exim4/exim4.conf.template.bak*
        email_update_onion_domain
        prevent_mail_process_overrun
        android_update_apps yes
        #defrag_filesystem

        # reinstall tor from backports
        tor_version=$(tor --version)
        if [[ "$tor_version" == *' 0.2'* ]]; then
            echo 'N' | apt-get -yq -t stretch-backports install tor
            systemctl restart tor
        fi
    fi
fi

# If logging was left on then turn it off
${PROJECT_NAME}-logging off

# This is a hack to fix nginx failures which happen sometimes
# when matrix is installed
if [ -d /etc/matrix ]; then
    systemctl restart matrix
    systemctl restart nginx
fi

# upgrading file prevents USB canary from activating
if [ -f /tmp/.upgrading ]; then
    rm /tmp/.upgrading
fi

# deliberately there is no 'exit 0' here