#!/bin/bash

# Tor Client app for YunoHost
# Copyright (C) 2015 Emile Morel <emile@bleuchtang.fr>
# Copyright (C) 2015 Julien Vaubourg <julien@vaubourg.com>
# Contribute at https://github.com/labriqueinternet/torclient_ynh
#
# 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/>.

# This is an upgrade?
upgrade=$([ "${TORCLIENT_UPGRADE}" == 1 ] && echo true || echo false)

# Retrieve arguments
domain=${1}
url_path=${2}

# Check domain/path availability
sudo yunohost app checkurl ${domain}${url_path} -a torclient
if [ ! $? -eq 0 ]; then
  exit 1
fi
  
if ! $upgrade; then

  if [ ! -e /tmp/.ynh-hotspot-started ]; then
    echo "WARNING: Hotspot app not installed or not started" >&2
  fi

fi

echo 'deb http://deb.torproject.org/torproject.org jessie main' | sudo tee "/etc/apt/sources.list.d/torproject.list"
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xee8cbc9e886ddd89

# Install packages
packages='tor php5-fpm'
sudo apt-get update
DEBIAN_FRONTEND=noninteractive sudo apt-get --assume-yes --force-yes install ${packages}

if ! $upgrade; then

  # Save arguments
  sudo yunohost app setting torclient service_enabled -v 0
  sudo yunohost app setting torclient wifi_device_id -v -1

fi

sudo install -o root -g root -m 0644 ../conf/torrc /etc/tor/torrc.tpl
sudo install -b -o root -g root -m 0644 ../conf/nginx_torclient.conf "/etc/nginx/conf.d/${domain}.d/torclient.conf"
sudo install -b -o root -g root -m 0644 ../conf/phpfpm_torclient.conf /etc/php5/fpm/pool.d/torclient.conf

# Copy web sources
sudo mkdir -pm 0755 /var/www/torclient/
sudo cp -a ../sources/* /var/www/torclient/

sudo chown -R root: /var/www/torclient/
sudo chmod -R 0644 /var/www/torclient/*
sudo find /var/www/torclient/ -type d -exec chmod +x {} \;

# Fix confs
## nginx
sudo sed "s|<TPL:NGINX_LOCATION>|${url_path}|g" -i "/etc/nginx/conf.d/${domain}.d/torclient.conf"
sudo sed 's|<TPL:NGINX_REALPATH>|/var/www/torclient/|g' -i "/etc/nginx/conf.d/${domain}.d/torclient.conf"
sudo sed 's|<TPL:PHP_NAME>|torclient|g' -i "/etc/nginx/conf.d/${domain}.d/torclient.conf"

## php-fpm
sudo sed 's|<TPL:PHP_NAME>|torclient|g' -i /etc/php5/fpm/pool.d/torclient.conf
sudo sed 's|<TPL:PHP_USER>|admin|g' -i /etc/php5/fpm/pool.d/torclient.conf
sudo sed 's|<TPL:PHP_GROUP>|admins|g' -i /etc/php5/fpm/pool.d/torclient.conf
sudo sed 's|<TPL:NGINX_REALPATH>|/var/www/torclient/|g' -i /etc/php5/fpm/pool.d/torclient.conf
sudo sed 's|^;\?\s*max_execution_time.\+|max_execution_time = 600|' -i /etc/php5/fpm/php.ini

# Fix sources
sudo sed "s|<TPL:NGINX_LOCATION>|${url_path}|g" -i /var/www/torclient/config.php

# Copy init script
sudo install -o root -g root -m 0755 ../conf/ynh-torclient /usr/local/bin/
sudo install -o root -g root -m 0644 ../conf/ynh-torclient.service /etc/systemd/system/

# Allow Tor ports in firewall
sudo yunohost firewall allow --no-upnp UDP 9053
sudo yunohost firewall allow --no-upnp TCP 9040

# Set default inits
# The boot order of these services are important, so they are disabled by default
# and the ynh-torclient service handles them.
sudo systemctl disable tor
sudo systemctl stop tor

sudo systemctl enable php5-fpm
sudo systemctl restart php5-fpm

sudo systemctl reload nginx

sudo systemctl enable ynh-torclient
sudo yunohost service add ynh-torclient

if ! $upgrade; then
  sudo systemctl start ynh-torclient

  echo "WARNING: Tor Client is not started because you need to define an associated wifi hotspot through the web admin" >&2
fi

sudo yunohost app ssowatconf

exit 0