Apache mod auth mellon script to generate SAML SP metadata

########################################################################
#####
# This script has been modified to meet the integration requirement
s. #
########################################################################
#####
#!/usr/bin/env bash
set -e
PROG="$(basename "$0")"
printUsage() {
echo "Usage: $PROG ENTITY-ID ENDPOINT-URL CERT-PATH"
echo ""
echo "Example:"
echo " $PROG urn:someservice https://sp.example.org/mellon /opt/cer
t.crt"
echo ""
}
if [ "$#" -lt 2 ]; then
printUsage
exit 1
fi
ENTITYID="$1"
if [ -z "$ENTITYID" ]; then
echo "$PROG: An entity ID is required." >&2
exit 1
fi
BASEURL="$2"
if [ -z "$BASEURL" ]; then
echo "$PROG: The URL to the MellonEndpointPath is required." >&2
exit 1
fi
if ! echo "$BASEURL" | grep -q '^https\?://'; then
echo "$PROG: The URL must start with \"http://\" or \"https://\"." >
&2
exit 1
fi
HOST="$(echo "$BASEURL" | sed 's#^[a-z]*://\([^/]*\).*#\1#')"
BASEURL="$(echo "$BASEURL" | sed 's#/$##')"
CERTFILE="$3"
if [ -z "$CERTFILE" ]; then
echo "$PROG: Cert path is required" >&2
exit 1
fi
OUTFILE="$(echo "$ENTITYID" | sed 's/[^A-Za-z.]/_/g' | sed 's/__*/_/g')"
echo "Output files:"
echo "Private key: $OUTFILE.key"
echo "Certificate: $OUTFILE.cert"
echo "Metadata: $OUTFILE.xml"
echo "Host: $HOST"
echo
echo "Endpoints:"
echo "SingleLogoutService (SOAP): $BASEURL/logout"
echo "SingleLogoutService (HTTP-Redirect): $BASEURL/logout"
echo "AssertionConsumerService (HTTP-POST): $BASEURL/postResponse"
echo "AssertionConsumerService (HTTP-Artifact): $BASEURL/artifactRespons
e"
echo "AssertionConsumerService (PAOS): $BASEURL/paosResponse"
echo
# No files should not be readable by the rest of the world.
umask 0077
CERT="$(grep -v ^----- "$CERTFILE")"
cat >"$OUTFILE.xml" <<EOF
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<EntityDescriptor
entityID="$ENTITYID"
xmlns="urn:oasis:names:tc:SAML:2.0:metadata">
<SPSSODescriptor
AuthnRequestsSigned="true"
WantAssertionsSigned="true"
protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol">
<KeyDescriptor use="signing">
<ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
<ds:X509Data>
<ds:X509Certificate>$CERT</ds:X509Certificate>
</ds:X509Data>
</ds:KeyInfo>
</KeyDescriptor>
<KeyDescriptor use="encryption">
<ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
<ds:X509Data>
<ds:X509Certificate>$CERT</ds:X509Certificate>
</ds:X509Data>
</ds:KeyInfo>
</KeyDescriptor>
<SingleLogoutService
Binding="urn:oasis:names:tc:SAML:2.0:bindings:SOAP"
Location="$BASEURL/logout" />
<SingleLogoutService
Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect"
Location="$BASEURL/logout" />
<NameIDFormat>urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified</
NameIDFormat>
<NameIDFormat>urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress
</NameIDFormat>
<AssertionConsumerService
index="0"
isDefault="true"
Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"
Location="$BASEURL/postResponse" />
<AssertionConsumerService
index="1"
Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Artifact"
Location="$BASEURL/artifactResponse" />
<AssertionConsumerService
index="2"
Binding="urn:oasis:names:tc:SAML:2.0:bindings:PAOS"
Location="$BASEURL/paosResponse" />
</SPSSODescriptor>
</EntityDescriptor>
EOF
umask 0777
chmod go+r "$OUTFILE.xml"