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#!/bin/bash

function usage {
    echo "Creates a new local virutal host."
    echo "usage: newhost [-s] sitename"
    echo "Parameters:"
    echo "  s : Create HTTPS virtual host as well."
}

function safename {
    echo $( echo -n "$1" | python -c "import re; import sys; sys.stdout.write(re.sub(r'[-]{2,}', '-', re.sub(r'[^a-z0-9]+', '-', sys.stdin.read().lower())))" )
}

if [ "$(id -u)" != "0" ]; then
    echo "Sorry, you are not root."
    exit 1
fi

if [ $# -eq 0 ];then
    usage;exit 1;
fi

host="$1"
usehttps=0
if [ "$1" == "-s" ];then
    useHttps=1
    shift
    if  [ -z "$1" ];then
	usage;exit 1;
    fi
    host="$1"
fi

host=$( safename "${host}" )

targetsite="${host}.local"
targetdir=/etc/apache2/sites-available
wwwdir=/var/www

if [ -f "${targetdir}/${targetsite}" ];then
    echo "WARN: Virtual Host already exists! Overwriting..."
fi

echo "Creating virtual host ${targetsite} for directory ${wwwdir}/${host}"

# Create virtual host entry
cat >"${targetdir}/${targetsite}" <<EOF
<VirtualHost ${targetsite}:80>
	ServerAdmin webmaster@localhost
	
  ServerName ${targetsite}

	DocumentRoot /var/www/${host}
	<Directory />
		Options FollowSymLinks
		AllowOverride None
	</Directory>
	<Directory /var/www/${host}/>
		Options FollowSymLinks MultiViews
		AllowOverride All
		Order allow,deny
		allow from all
	</Directory>

	ErrorLog \${APACHE_LOG_DIR}/${targetsite}-error.log

	# Possible values include: debug, info, notice, warn, error, crit,
	# alert, emerg.
	LogLevel warn

	CustomLog \${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
EOF

if [ "$useHttps" == "1" ];then
certfile=/etc/apache2/certs/ssl.crt
certkey=/etc/apache2/certs/ssl.key

cat >>"${targetdir}/${targetsite}" <<EOF
<IfModule mod_ssl.c>
<VirtualHost ${targetsite}:443>
	ServerAdmin webmaster@localhost
	
  ServerName ${targetsite}
	DocumentRoot /var/www/${host}
	<Directory />
		Options FollowSymLinks
		AllowOverride None
	</Directory>
	<Directory /var/www/${host}/>
		Options FollowSymLinks MultiViews
		AllowOverride All
		Order allow,deny
		allow from all
	</Directory>

        # SSL
        SSLEngine on
        SSLCertificateFile ${certfile}
        SSLCertificateKeyFile ${certkey}

        <FilesMatch "\.(cgi|shtml|phtml|php)$">
                SSLOptions +StdEnvVars
        </FilesMatch>

        BrowserMatch "MSIE [2-6]" \
                nokeepalive ssl-unclean-shutdown \
                downgrade-1.0 force-response-1.0
        # MSIE 7 and newer should be able to use keepalive
        BrowserMatch "MSIE [17-9]" ssl-unclean-shutdown


	ErrorLog \${APACHE_LOG_DIR}/${targetsite}-error.log

	# Possible values include: debug, info, notice, warn, error, crit,
	# alert, emerg.
	LogLevel warn

	CustomLog \${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
</IfModule>
EOF
fi

# Hostname
grep -e "127.0.0.1[ ]*${targetsite}" /etc/hosts > /dev/null
if [ $? -ne 0 ];then
    echo "127.0.0.1      ${targetsite}" >> /etc/hosts
else
    echo "Hosts entry already found."
fi

a2ensite "${targetsite}"
service apache2 reload