#!/bin/bash

# This is a script for packaging Teamspeak 3 Server into a .deb package.
# It is based on the aur package "teamspeak3-server" at 
# https://aur.archlinux.org/packages/teamspeak3-server.

# This script is intended for making Debian 8 packages ONLY and
# can be used on Debian 8.x or Arch Linux (provided that all
# dependencies are met, see INFO).

# Copyright (c) 2015, Mark Weiman <contact@markzz.com>
# 
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

# Get information about the operating system.
source /etc/os-release

# Check all passed arguments and set some booleans
for arg in $@; do
  if [ $arg == "--skip-os-check" ]; then
    _SKIPOSCHECK=true
  else
    _SKIPOSCHECK=false
  fi
  
  if [ $arg == "--skip-deps" ]; then
    _SKIPDEPS=true
  else
    _SKIPDEPS=false
  fi
done

server_version="3.0.11.3"

if [ ! $_SKIPOSCHECK ]; then
  if [ $ID == 'debian' ]; then
    if [ $VERSION_ID == '8' ]; then
      echo "Detected Debian 8 (jessie)"
    else
      echo "This script is only guarenteed to make packages for Debian 8."
      echo "If you wish to skip the operating system check (NOT RECOMMENDED),"
      echo "then pass --skip-os-check into the script."
      exit 1
    fi
  elif [ $ID == 'arch' ]; then
    echo "Detected Arch Linux"
  else
    echo "$NAME is not supported by this script."
    echo "If you wish to skip the operating system check (NOT RECOMMENDED),"
    echo "then pass --skip-os-check into the script."
    exit 1
  fi
fi

if [ ! $_SKIPDEPS ]; then
  echo "Checking dependencies for building package."
  echo
  
  if [ $ID == 'debian' ]; then
    echo "Checking if fakeroot is installed"
    command -v fakeroot >/dev/null 2>&1 && echo "fakeroot is installed" || { echo "Installing fakeroot with apt-get..."; sudo apt-get install fakeroot; }
    echo
  elif [ $ID == 'arch' ]; then
    echo "Checking if dpkg is installed"
    command -v dpkg >/dev/null 2>&1 && echo "dpkg is installed" || { echo "dpkg is not installed: Aborting!"; exit 2; }
    echo
    
    echo "Checking if fakeroot is installed"
    command -v fakeroot >/dev/null 2>&1 && echo "fakeroot is installed" || { echo "Installing fakeroot with pacman..."; sudo pacman -Sy fakeroot; }
    echo
  fi
fi

arch=`uname -m`
if [ $arch == "x86_64" ]; then
  _arch="x86_64"
  _archname="amd64"
  echo "Detected $_archname"
  if [ -f "teamspeak3-server_linux-amd64-${server_version}.tar.gz" ]; then
    #cp ./teamspeak3-server_linux-amd64-3.0.11.3.tar.gz /tmp
    tar -xvzf teamspeak3-server_linux-amd64-${server_version}.tar.gz
    mv teamspeak3-server_linux-amd64 /tmp/teamspeak3
  fi
elif [ $arch == "i686" ]; then
  _arch="x86"
  _archname="i686"
  echo "Detected $_archname"
  if [ -f "teamspeak3-server_linux-x86-3.0.11.3.tar.gz" ]; then
    #cp ./teamspeak3-server_linux-x86-.tar.gz /tmp
    tar -xvzf teamspeak3-server_linux-x86-${server_version}.tar.gz
    mv /tmp/teamspeak3-server_linux-x86-${server_version} /tmp/teamspeak3
  fi
else
  echo "Architecture $arch not valid."
  exit 3
fi

mkdir /tmp/teamspeak3-server
mkdir /tmp/teamspeak3-server/DEBIAN

# making debian control file
echo "Package: teamspeak3-server
Version: ${server_version}
Section: daemons
Priority: optional
Architecture: $_archname
Maintainer: Mark Weiman <contact@markzz.com>
Homepage: https://github.com/markzz/teamspeak3-server-packaging
Description: Server for Teamspeak 3" > /tmp/teamspeak3-server/DEBIAN/control

mkdir -p /tmp/teamspeak3-server/lib/systemd/system/
mkdir -p /tmp/teamspeak3-server/usr/share/doc/teamspeak3-server/
mkdir -p /tmp/teamspeak3-server/usr/share/teamspeak3-server/
mkdir -p /tmp/teamspeak3-server/etc/
mkdir -p /tmp/teamspeak3-server/usr/lib/
mkdir -p /tmp/teamspeak3-server/usr/bin/

# creating debian license files.
echo "Format-Specification: http://svn.debian.org/wsvn/dep/web/deps/dep5.mdwn?op=file&rev=135
Name: teamspeak3-server
Maintainer: Mark Weiman <contact@markzz.com>
Source: http://www.teamspeak.com/

License: custom
" > /tmp/ts3-copyright.tmp

cat /tmp/ts3-copyright.tmp /tmp/teamspeak3/LICENSE > /tmp/teamspeak3-server/DEBIAN/copyright
rm /tmp/ts3-copyright.tmp

echo '#!/bin/sh
if [ -d "/usr/share/teamspeak3-serverlocal/" ]; then
  sqldir_dst="/usr/share/teamspeak3-server/"
  find "${sqldir_dst}" -type d -exec chmod 755 {} \;
  find "${sqldir_dst}" -type f -exec chmod 644 {} \;
fi
if [ -d "/usr/share/doc/teamspeak3-server/" ]; then
  local docdir_dst="/usr/share/doc/teamspeak3-server/"
  find "${docdir_dst}" -type d -exec chmod 755 {} \;
  find "${docdir_dst}" -type f -exec chmod 644 {} \;
fi' > /tmp/teamspeak3-server/DEBIAN/preinst

chmod 755 /tmp/teamspeak3-server/DEBIAN/preinst

echo '#!/bin/sh
if ! getent group "teamspeak" >/dev/null; then
  groupadd -r teamspeak
fi
if ! getent passwd "teamspeak" >/dev/null; then
  useradd -r -M -N -g teamspeak -d /var/lib/teamspeak3-server -s /usr/bin/nologin -c "Teamspeak Server" teamspeak
fi
# Install workdirs
install -dm 744 -o teamspeak -g teamspeak /var/log/teamspeak3-server/
install -dm 744 -o teamspeak -g teamspeak /var/lib/teamspeak3-server/

# Load unit file
systemctl --system daemon-reload

echo " >>> TeamSpeak End User License Agreement:"
echo " >>> You need to agree with the TeamSpeak 3 license"
echo " >>> before you use this software.

# Restart teamspeak3-server
systemctl --system daemon-reload
if ! systemctl --quiet is-active teamspeak3-server; then
  systemctl restart teamspeak3-server
fi' > /tmp/teamspeak3-server/DEBIAN/postinst

chmod 755 /tmp/teamspeak3-server/DEBIAN/postinst

echo '#!/bin/sh
if systemctl --quiet is-active teamspeak3-server; then
  systemctl stop teamspeak3-server
fi' > /tmp/teamspeak3-server/DEBIAN/prerm

chmod 755 /tmp/teamspeak3-server/DEBIAN/prerm

echo '#!/bin/sh
if getent passwd "teamspeak" >/dev/null; then
  userdel teamspeak > /dev/null
fi
if getent group "teamspeak" >/dev/null; then
  groupdel teamspeak >/dev/null
fi' > /tmp/teamspeak3-server/DEBIAN/postrm

chmod 755 /tmp/teamspeak3-server/DEBIAN/postrm

# create configuration file
echo '#
# Parameters to be passed to teamspeak3-server
#
# The following commandline parameters are available:
#
#* default_voice_port (9987)
#  UDP port open for clients to connect to. This port is used by the first 
#  virtual server, subsequently started virtual servers will open on increasing 
#  port numbers.
#  Default: The default voice port is 9987.
#
#* voice_ip (0.0.0.0)
#  IP on which the server instance will listen for incoming voice connections.
#  Default: The server is bound on any IP address.
#
#* create_default_virtualserver (1)
#  Normally one virtual server is created automatically when the TeamSpeak 3
#  Server process is started. To disable this behaviour, set this parameter
#  to "0". In this case you have to start virtual servers manually using the
#  ServerQuery interface.
#  Default: If not provided, one virtual server is created.
#
#* machine_id (<empty>)
#  Optional name of this server process to identify a group of servers with
#  the same ID. This can be useful when running multiple TeamSpeak 3 Server
#  instances on the same database. Please note that we strongly recommend that
#  you do NOT run multiple server instances on the same SQLite database.
#  Default: The server instance will not use a machine ID.
#
#* filetransfer_port (30033)
#  TCP Port opened for file transfers. If you specify this parameter, you also 
#  need to specify the "filetransfer_ip" parameter!
#  Default: The default file tranfer port is 30033.
#  
#* filetransfer_ip (0.0.0.0)
#  IP on which the file transfers are bound to. If you specify this parameter, 
#  you also need to specify the "filetransfer_port" parameter!
#  Default: File transfers are bound on any IP address.
#
#* query_port (10011)
#  TCP Port opened for ServerQuery connections. If you specify this parameter, 
#  need to specify the "query_ip" parameter!
#  Default: The default ServerQuery port is 10011.
#
#* query_ip (0.0.0.0)
#  IP bound for incoming ServerQuery connections. If you specify this parameter, 
#  you also need to specify the "query_port" parameter!
#  Default: ServerQuery connections are bound on any IP address.
#
#* clear_database (0)
#  If set to "1", the server database will be cleared before starting up the server. 
#  This is mainly used for testing. Usually this parameter should not be specified, 
#  so all server settings will be restored when the server process is restarted.
#  Default: Database is not cleared on start.
#
#* logpath (logs/)
#  The physical path where the server will create logfiles.
#  Default: The server will create logfiles in the "logs/" subdirectory.
#
#* dbplugin (ts3db_sqlite3)
#  Name of the database plugin library used by the server instance. For example, if
#  you want to start the server with MySQL support, simply set this parameter to
#  "ts3db_mysql" to use the MySQL plugin. Do *NOT* specify the "lib" prefix or the file 
#  extension of the plugin.
#  Default: The default SQLite3 database plugin will be used.
#  
#* dbpluginparameter (<empty>)
#  A custom parameter passed to the database plugin library. For example, the MySQL
#  database plugin supports a parameter to specify the physical path of the plugins
#  configuration file.
#  Default: The database plugin will be used without a parameter.
#
#* dbsqlpath (sql/)
#  The physical path where your SQL script files are located.
#  Default: The server will search for SQL script files in the "sql/" subdirectory.
#
#* dbsqlcreatepath (create_sqlite/)
#  The physical path where your SQL installation files are located. Note that this 
#  path will be added to the value of the "dbsqlpath" parameter.
#  Default: The server will search for SQL installation scripts files in the 
#  "<dbsqlpath>/dbsqlcreatepath/" subdirectory.
#  
#* licensepath (<empty>)
#  The physical path where your license file is located.
#  Default: The license file is located in your servers installation directory.
#  
#* createinifile (0)
#  If set to "1", the server will create an INI-style config file containing all 
#  commandline parameters with the values you have specified.
#  Default: The server will not create a config file.
#  
#* inifile (ts3server.ini)
#  The physical path where your config file is located. Per default, the config file will
#  be called "ts3server.ini".
#  Default: The config file is located in your servers installation directory.
#  
#* query_ip_whitelist (query_ip_whitelist.txt)
#  The file containing whitelisted IP addresses for the ServerQuery interface. All hosts
#  listed in this file will be ignored by the ServerQuery flood protection.
#  Default: The whitelist file is located in your servers installation directory.
#  
#* query_ip_backlist (query_ip_backlist.txt)
#  The file containing backlisted IP addresses for the ServerQuery interface. All hosts
#  listed in this file are not allowed to connect to the ServerQuery interface.
#  Default: The whitelist file is located in your servers installation directory.
#
#* dbclientkeepdays (90)
#  Defines how many days to keep unused client identities. Auto-pruning is triggered on every 
#  start and on every new month while the server is running.
#  Default: The server will auto-prune client identities older than 90 days.
#  
#* dblogkeepdays (90)
#  Defines how many days to keep database log entries. Auto-pruning is triggered on every 
#  start and on every new month while the server is running.
#  Default: The server will auto-prune log entries older than 90 days.
#  
#* logquerycommands (1)
#  If set to "1", the server will log every ServerQuery command executed by clients. This can
#  be useful while trying to diagnose several different issues.
#  Default: ServerQuery commands will not be logged.
#  
#* no_permission_update (0)
#  If set to "1", new permissions will not be added to existing groups automatically. Note that
#  this can break your server configuration if you dont update them manually.
#  Default: New permissions will be added to existing groups automatically.

TS_ARGS="logpath=/var/log/teamspeak3-server/ dbsqlpath=/usr/share/teamspeak3-server/sql/"' > /tmp/teamspeak3-server/etc/teamspeak3-server.conf

# create systemd service
echo "[Unit]
Description=TeamSpeak3 Server
After=network.target

[Service]
Type=simple
User=teamspeak
Group=teamspeak
WorkingDirectory=/var/lib/teamspeak3-server
EnvironmentFile=/etc/teamspeak3-server.conf
ExecStart=/usr/bin/teamspeak3-server \${TS_ARGS}

[Install]
WantedBy=multi-user.target" > /tmp/teamspeak3-server/lib/systemd/system/teamspeak3-server.service

mv /tmp/teamspeak3/libts3db_mariadb.so /tmp/teamspeak3-server/usr/lib/
mv /tmp/teamspeak3/libts3db_sqlite3.so /tmp/teamspeak3-server/usr/lib/
mv /tmp/teamspeak3/sql/ /tmp/teamspeak3-server/usr/share/teamspeak3-server/sql/
mv /tmp/teamspeak3/doc /tmp/teamspeak3-server/usr/share/doc/teamspeak3-server
mv /tmp/teamspeak3/ts3server_linux_amd64 /tmp/teamspeak3-server/usr/bin/teamspeak3-server

echo "Building package with dpkg..."
fakeroot dpkg --build /tmp/teamspeak3-server
mv /tmp/teamspeak3-server.deb ./teamspeak3-server_${server_version}-1.deb

rm -r /tmp/teamspeak3
rm -r /tmp/teamspeak3-server
echo "DONE!"