###============================================================
##      Ubuntu 18.04 Apache NGINX Reverse Proxy Additional Domain Installer
###============================================================
## Zet comments hieronder:
#
#
#
##=============================================================

##----------##
#    Menu    #
##----------##

echo "Domein instellen als NGINX reverse proxy of als NGINX webserver?"
PS3='Keuze:'
options=("Reverse proxy" "Webserver")
select opt in "${options[@]}"
do
    case $opt in
        "Reverse proxy")
            domain_setup=1
            break;;
        "Webserver")
            domain_setup=2
            break;;
        *) echo "Fout commando $REPLY";;
    esac
done

##----------------##
#    Pre-Config    #
##----------------##

# Set server IP variable for apache access
server_ip=$(hostname -I|cut -f1 -d ' ')

##============##
#    Apache    #
##============##

##-------------------##
#    Reverse Proxy    # 
##-------------------##

if [ $domain_setup = 1 ]; then
cat <<EOF > /etc/apache2/sites-available/"$domain.conf"
<VirtualHost *:8080>
    ServerName $domain
    ServerAlias www.$domain
    DocumentRoot /var/www/$domain/html
    <Directory /var/www/$domain/html>
        AllowOverride All
    </Directory>
</VirtualHost>
EOF
a2ensite $domain
fi

##===========##
#    NGINX    #
##===========##

##-------------------##
#    Reverse Proxy    # 
##-------------------##

if [ $domain_setup = 1 ]; then
cat <<EOF > /etc/nginx/sites-available/"$domain"
server {
    listen 80;

    root /var/www/$domain/html;
    index index.php index.html index.htm;

    server_name $domain www.$domain;

    location / {
        proxy_pass http://$server_ip:8080;
        proxy_set_header X-Real-IP  \$remote_addr;
        proxy_set_header X-Forwarded-For \$remote_addr;
        proxy_set_header Host \$host;
    }
        
    location ~ \.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|pdf|txt|tar|wav|bmp|rtf|js|flv|swf|html|htm)(\\n|\?ver=[0-9.])\$ {
        return 200;
    }

    location ~ /\.ht {
        deny all;
    }
    
    #listen 443 ssl;
    #ssl_certificate /etc/letsencrypt/live/$domain/fullchain.pem;
    #ssl_certificate_key /etc/letsencrypt/live/$domain/privkey.pem;
    #include /etc/letsencrypt/options-ssl-nginx.conf;
    #ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;

}
EOF
fi

##---------------##
#    Webserver    #
##---------------##

if [ $domain_setup = 2 ]; then
cat <<EOF > /etc/nginx/sites-available/"$domain"
server {
    listen 80 default_server;

    root /var/www/$domain/html;
    index index.php index.html index.htm;

    server_name example.com www.example.com;
    location / {
        try_files \$uri \$uri/ /index.php;
    }

    location ~ \.php\$ {
        fastcgi_pass unix:/run/php/php7.2-fpm.sock;
        include snippets/fastcgi-php.conf;
    }
}
EOF
fi

ln -s /etc/nginx/sites-available/"$domain" /etc/nginx/sites-enabled/"$domain"

##===========##
#    Other    #
##===========##

##-------------##
#    Certbot    #
##-------------##

#certbot --nginx -d "$domain" -d "www.$domain"
#sed -i 's/ssl ipv6only/ssl http2 ipv6only/g' /etc/nginx/sites-available/"$domain"
#sed -i 's/listen 443 ssl/listen 443 ssl http2/g' /etc/nginx/sites-available/"$domain"
#sed -i 's#include /etc/letsencrypt/options-ssl-nginx.conf;#ssl_ciphers EECDH+CHACHA20:EECDH+AES128:RSA+AES128:EECDH+AES256:RSA+AES256:EECDH+3DES:RSA+3DES:!MD5;#g' /etc/nginx/sites-available/"$domain"

##----------------##
#    PHPMyAdmin    #
##----------------##

# Redirect phpmyadmin -> database
ln -s /usr/share/phpmyadmin /var/www/"$domain"/html/phpmyadmin
mv /var/www/"$domain"/html/phpmyadmin /var/www/"$domain"/html/database

##-------------##
#    Postfix    #
##-------------##

#debconf-set-selections <<< "postfix postfix/mailname string $domain"
#debconf-set-selections <<< "postfix postfix/main_mailer_type string 'Internet Site'"
#apt install -y mailutils
sed -i 's/#inet_interfaces = all/inet_interfaces = loopback-only/g' /etc/postfix/main.cf
sed -i 's/mydestination/#mydestination/g' /etc/postfix/main.cf
sed -i 's/relayhost =/mydestination = '$domain', localhost.'$domain', '$domain'/g' /etc/postfix/main.cf
cat <<EOF > /etc/aliases
# See man 5 aliases for format
postmaster:    root
root:          $email
EOF
newaliases

##-------------##
#    Netdata    #
##-------------##

#if [ $netdata = 1 ]; then
#apt install -y netdata
#sed -i 's/SEND_EMAIL="YES"/SEND_EMAIL="NO"/g' /etc/netdata/health_alarm_notify.conf
#ufw allow 19999/tcp
# systemctl stop netdata
# systemctl disable netdata
#fi


##---------------##
#    Memcached    #
##---------------##

#if [ $memcached = 1 ]; then
#apt install -y memcached
# systemctl stop memcached
# systemctl disable memcached
#fi

##-----------##
#    Redis    #
##-----------##

#if [ $redis = 1 ]; then
#apt install -y redis-server
#sed -i 's/supervised no/supervised systemd/g' /etc/redis/redis.conf
#sed -i 's/# bind 127.0.0.1 ::1/bind 127.0.0.1 ::1/g' /etc/redis/redis.conf
#sed -i 's/# requirepass foobared/requirepass '$password'/g' /etc/redis/redis.conf
# systemctl stop redis
# systemctl disable redis
#fi

##---------------##
#    Wordpress    #
##---------------##

if [ $wordpress = 1 ]; then
db_suffix=$(ls -l /var/www | grep -c ^d)
db_name="wp_$db_suffix"
db_user="wp_$db_suffix"
db_pass=$(date +%s|sha256sum|base64|head -c 32)
mysql -u root -p"$password" -e "CREATE DATABASE "$db_name" DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci;"
mysql -u root -p"$password" -e "GRANT ALL ON "$db_name".* TO '"$db_user"'@'localhost' IDENTIFIED BY '"$db_pass"';"
mysql -u root -p"$password" -e "FLUSH PRIVILEGES;"
wget https://wordpress.org/latest.tar.gz -O /tmp/wp.tar.gz
tar xzvf /tmp/wp.tar.gz -C /tmp
mv /tmp/wordpress/wp-config-sample.php /tmp/wordpress/wp-config.php
cp -a /tmp/wordpress/. /var/www/"$domain"/html
WPSalts=$(wget https://api.wordpress.org/secret-key/1.1/salt/ -q -O -)
cat <<EOF > /var/www/"$domain"/html/wp-config.php
<?php
define('DB_NAME', '$db_name');
define('DB_USER', '$db_user');
define('DB_PASSWORD', '$db_pass');
define('DB_HOST', 'localhost');
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');
#define( 'WP_SITEURL', '' );
#define( 'WP_HOME', '' );
#define( 'ALTERNATE_WP_CRON', true );
#define('DISABLE_WP_CRON', 'true');
#define('WP_CRON_LOCK_TIMEOUT', 900);
#define('AUTOSAVE_INTERVAL', 300);
define( 'WP_MEMORY_LIMIT', '256M' );
define( 'DISALLOW_FILE_EDIT', true );
#define( 'EMPTY_TRASH_DAYS', 7 );
define( 'NOBLOGREDIRECT', 'http://$domain' );
#define( 'FS_CHMOD_DIR', ( 0755 & ~ umask() ) );
#define( 'FS_CHMOD_FILE', ( 0644 & ~ umask() ) );
#define( 'WP_ALLOW_REPAIR', true );
#define( 'FORCE_SSL_ADMIN', true );
#define( 'AUTOMATIC_UPDATER_DISABLED', true );
#define( 'WP_AUTO_UPDATE_CORE', false );
$WPSalts
\$table_prefix = '$db_name';

define('WP_DEBUG', false);
if ( !defined('ABSPATH') )
	define('ABSPATH', dirname(__FILE__) . '/');

#\$memcached_servers = array(
#    'default' => array(
#        '127.0.0.1:11211'
#    )
#);
#define('WP_REDIS_HOST', '127.0.0.1');
#define('WP_REDIS_PASSWORD', '$password');
#define('WP_REDIS_PORT', '6379');
require_once(ABSPATH . 'wp-settings.php');
EOF
fi

##-----------------##
#    Opcache GUI    #
##-----------------##

wget https://raw.githubusercontent.com/amnuts/opcache-gui/master/index.php -O /var/www/"$domain"/html/opcache.php

##--------------##
#    Info.php    #
##--------------##

cat > /var/www/"$domain"/html/info.php <<- "EOF"
<?php phpinfo();
EOF

##-----------------------##
#    Html Folder Perms    #
##-----------------------##

chown -R www-data:www-data /var/www/"$domain"/html