#!/bin/bash

function die() {
   echo $*
   exit 1
}

URL=$1
CERT=$2
DIR=$3

TMPF=`mktemp`
wget --no-check-certificate -O$TMPF $URL || die "Unable to download $URL: $?"
samlsign -c $CERT -f $TMPF || die "Unable to verify $URL with $CERT: $?"
TMPD=`mktemp -d`
xsltproc --stringparam output $TMPD xslt/import-metadata.xsl $TMPF || die "Unable to import metadata from $URL: $?"
rsync -avz $TMPD/ $DIR
(
echo '?xml version="1.0"?>'
echo "<EntitiesDescriptor xmlns=\"urn:oasis:names:tc:SAML:2.0:metadata\" xmlns:xi=\"http://www.w3.org/2001/XInclude\" Name=\"http://md.swamid.se/md/$3.xml\">"
for md in $3/*.xml; do
   echo "<xi:include href=\"$md\"/>"
done
echo "</EntitiesDescriptor>"
) > $3.mxml
rm -rf $TMPF $TMPD