[BASH][Apache2][V1.0][Debian] Create Project VHOST

#!/bin/bash
WEBSITE_DIRECTORY="/var/www/"
APACHE2_DIRECTORY="/etc/apache2/"
MYSQL_USER="root"
MYSQL_PASSWORD=""

#DON'T EDIT ANYTHING UNDERNEATH HERE UNLESS YOU KNOW WHAT YOU ARE DOING!


checkWebsiteDirectoryConfig()
{
    if [ -z "${WEBSITE_DIRECTORY}" ]
        then
        echo "[To disable this message please fill in WEBSITE_DIRECTORY in the script]"
        read -p "WEBSITE_DIRECTORY is empty! Please fill in your website directory e.g. /var/www/: " WEBSITE_DIRECTORY
        checkWebsiteDirectoryConfig
    else
        checkApache2DirectoryConfig
    fi
}

checkApache2DirectoryConfig()
{
    if [ -z "${APACHE2_DIRECTORY}" ]
        then
        echo "[To disable this message please fill in APACHE2_DIRECTORY in the script]"
        read -p "APACHE2_DIRECTORY is empty! Please fill in your apache2 directory e.g. /etc/apache2/: " APACHE2_DIRECTORY
        checkApache2DirectoryConfig
    else
        checkMysqlUserConfig
    fi
}

checkMysqlUserConfig()
{
    if [ -z "${MYSQL_USER}" ]
        then
        echo "[To disable this message please fill in MYSQL_USER in the script]"
        read -p "MYSQL_USER is empty! Please fill in your mysql username: " MYSQL_USER
        checkMysqlUserConfig
    #else
    #    checkMysqlPasswordConfig
    fi
}

checkMysqlPasswordConfig()
{
    if [ -z "${MYSQL_PASSWORD}" ]
        then
        echo "[To disable this message please fill in MYSQL_PASSWORD in the script]"
        read -p "MYSQL_PASSWORD is empty! Please fill in your mysql password: " MYSQL_PASSWORD
        checkMysqlUserConfig
    fi
}

getVhostName()
{
    read -p "Please enter a domain name: " vhostName
    if [ -z "${vhostName}" ]
        then
        echo "Please fill in a domain name!"
        getVhostName
    else
        if [ -z "${USER_USERNAME}" ]
            then
            WEB_DIR=$WEBSITE_DIRECTORY/$vhostName
        else
            WEB_DIR=/home/$USER_USERNAME/$vhostName
        fi
    fi
}

getCmsSystem()
{
    read -p "Please enter what kind of CMS you're setting up (none, symfony2): " cmsSystem
    if [ -z "${cmsSystem,,}" ]
        then
        getCmsSystem
    else
        case $cmsSystem in
            symfony2)
                buildSymfony2Vhost
                ;;
            none)
                buildNormalVhost
                ;;
            *)
                echo "This is not a valid CMS system!"
                getCmsSystem
               ;;
        esac
    fi
}

setUserDetails()
{
    if [ -z "${USER_USERNAME}" ]
        then
        read -p "Username for the user: " USER_USERNAME
    fi
    USER_PASSWORD=$(date +%s|sha256sum|base64|head -c 16)
}

createUser()
{
    read -p "Do you want to create an user for this domain? (Y)es/(N)o:" -r

    if [[ $REPLY =~ ^[Yy]$ ]]
        then
        setUserDetails
        useradd -g users -d /home/$USER_USERNAME -s /bin/bash -p $(echo "${USER_PASSWORD}" | openssl passwd -1 -stdin ) -m $USER_USERNAME
    elif [[ $REPLY =~ ^[Nn]$ ]]
        then
        return
    else
        echo "${REPLY} is not a valid option!"
        createUser
    fi
}

setMysqlDetails()
{
    if [ -z "${NMYSQL_USERNAME}" ]
        then
        read -p "MySQL username for the user: " NMYSQL_USERNAME
    fi
    NMYSQL_PASSWORD=$(date +%s|sha256sum|base64|head -c 16)
}

createMysqlUser()
{
    read -p "Do you want to create an mysql user for this domain? (Y)es/(N)o:" -r

    if [[ $REPLY =~ ^[Yy]$ ]]
        then
        setMysqlDetails
        mysql -u $MYSQL_USER -p$MYSQL_PASSWORD -e "CREATE USER '${NMYSQL_USERNAME}'@'localhost' IDENTIFIED BY '${NMYSQL_PASSWORD}';"
        mysql -u $MYSQL_USER -p$MYSQL_PASSWORD -e "GRANT ALL PRIVILEGES ON \`${NMYSQL_USERNAME}\_%\` . * TO '${NMYSQL_USERNAME}'@'localhost';"
        mysql -u $MYSQL_USER -p$MYSQL_PASSWORD -e "FLUSH PRIVILEGES;"
    elif [[ $REPLY =~ ^[Nn]$ ]]
        then
        return
    else
        echo "${REPLY} is not a valid option!"
        createMysqlUser
    fi
}

createDirAndVhostFiles()
{
    echo "Creating directory "
    mkdir -p "${WEB_DIR}/public_html"
    mkdir -p "${WEB_DIR}/logs"
    if [ -z "${USER_USERNAME}" ]
        then
        chown -R www-data:www-data "${WEB_DIR}"
    else
        chown -R $USER_USERNAME:www-data "${WEB_DIR}"
    fi
    chmod 755 "${WEB_DIR}/public_html"
    chmod 777 "${WEB_DIR}/logs"
    echo "Directories created."
    echo "==================="
    echo "Creating vHost file"
    touch "${APACHE2_DIRECTORY}sites-available/${vhostName}.conf"
    echo "vHost created"
    ln -s "${APACHE2_DIRECTORY}sites-available/${vhostName}.conf" "${APACHE2_DIRECTORY}sites-enabled/${vhostName}.conf"
    echo "Symlink created"
    echo "==================="
}

buildNormalVhost()
{
    echo "None selected"
    echo "==================="
    createDirAndVhostFiles
    echo "Filling in vHost"
    echo "
<VirtualHost *:80>
  ServerAdmin admin@${vhostName}
  ServerName  ${vhostName}
  ServerAlias www.${vhostName}

  DocumentRoot ${WEB_DIR}/public_html/
  DirectoryIndex index.php index.html index.htm

  LogLevel Emerg
  ErrorLog ${WEB_DIR}/logs/error.log
  CustomLog ${WEB_DIR}/logs/access.log Combined

  <Directory  ${WEB_DIR}/public_html/>
    Options +ExecCGI
    Require all granted
    AllowOverride all
  </Directory>
</VirtualHost>
}" > "${APACHE2_DIRECTORY}sites-available/${vhostName}.conf"
    echo "vHost filled in."
}

buildSymfony2Vhost()
{
    echo "Symfony2 selected"
    echo "==================="
    createDirAndVhostFiles
    echo "Filling in vHost"
    echo "
<VirtualHost *:80>
    ServerName domain.tld
    ServerAlias www.domain.tld

    DocumentRoot ${WEB_DIR}/public_html/web/
    <Directory ${WEB_DIR}/public_html/web/>
        AllowOverride All
        Order Allow,Deny
        Allow from All
    </Directory>

    # uncomment the following lines if you install assets as symlinks
    # or run into problems when compiling LESS/Sass/CoffeScript assets
    # <Directory /var/www/project>
    #     Options FollowSymlinks
    # </Directory>

    ErrorLog ${WEB_DIR}/logs/error.log
    CustomLog ${WEB_DIR}/logs/project_access.log combined
</VirtualHost>" > "${APACHE2_DIRECTORY}sites-available/${vhostName}.conf"
    echo "vHost filled in."
}

restartApache2()
{
    echo "==================="
    echo "Reloading apache2..."
    service apache2 reload
    echo "apache2 reloaded!"
    echo "If you didn't encounter any errors the vhost has been setup!"
    echo "==================="

}

showInfo()
{
    echo "====================================================="
    echo "! PLEASE COPY THIS INFO! IT WILL NOT BE SHOWN AGAIN !"
    echo "====================================================="
    echo "The server details:"
    echo "Domain name: ${vhostName}"
    echo "Website root: ${WEB_DIR}/public_html"
    echo "Website logs: ${WEB_DIR}/logs"
    if [ -z "${USER_USERNAME}" ]
        then
        return
    else
        echo "Username: ${USER_USERNAME}"
        echo "Password: ${USER_PASSWORD}"
    fi

    if [ -z "${NMYSQL_USERNAME}" ]
        then
        return
    else
        echo "The MySQL details:"
        echo "Username: ${NMYSQL_USERNAME}"
        echo "Password: ${NMYSQL_PASSWORD}"
    fi
    echo "====================================================="
    echo "! PLEASE COPY THIS INFO! IT WILL NOT BE SHOWN AGAIN !"
    echo "====================================================="
    read something
    clear
}

init() {
    typeset -l cmsSystem
    if [[ $EUID -ne 0 ]]; then
       echo "This script must be run as root!" 1>&2
       exit 1
    fi
    echo "Apache2 Add Vhosts - Copyright Robin Rijkeboer 2016"
    checkWebsiteDirectoryConfig
    createUser
    getVhostName
    createMysqlUser
    getCmsSystem
    restartApache2
    showInfo
}

init