<?xml version="1.0" encoding="UTF-8"?>
<schema 
  targetNamespace="urn:oasis:names:tc:SAML:metadata:ui"
  xmlns="http://www.w3.org/2001/XMLSchema"
  xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"
  xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui"
  elementFormDefault="unqualified"
  attributeFormDefault="unqualified"
  blockDefault="substitution"
  version="1.0">

  <annotation>
    <documentation>
      Document title: Metadata Extension Schema for SAML V2.0 Metadata Extensions for Login and Discovery User Interface Version 1.0
      Document identifier: sstc-saml-metadata-ui-v1.0.xsd
      Location: http://docs.oasis-open.org/security/saml/Post2.0/
      Revision history:
      16 November 2010:
        Added Keywords element/type.
      01 November 2010
        Changed filename.
      September 2010:
        Initial version.
    </documentation>
  </annotation>

  <import namespace="urn:oasis:names:tc:SAML:2.0:metadata"
    schemaLocation="saml-schema-metadata-2.0.xsd"/>
  <import namespace="http://www.w3.org/XML/1998/namespace"
    schemaLocation="http://www.w3.org/2001/xml.xsd"/>

  <element name="UIInfo" type="mdui:UIInfoType" />
  <complexType name="UIInfoType">
    <choice minOccurs="0" maxOccurs="unbounded">
      <element ref="mdui:DisplayName"/>
      <element ref="mdui:Description"/>
      <element ref="mdui:Keywords"/>
      <element ref="mdui:Logo"/>
      <element ref="mdui:InformationURL"/>
      <element ref="mdui:PrivacyStatementURL"/>
      <any namespace="##other" processContents="lax"/>
    </choice>
  </complexType>

  <element name="DisplayName" type="md:localizedNameType"/>
  <element name="Description" type="md:localizedNameType"/>
  <element name="InformationURL" type="md:localizedURIType"/>
  <element name="PrivacyStatementURL" type="md:localizedURIType"/>

  <element name="Keywords" type="mdui:KeywordsType"/>
  <complexType name="KeywordsType">
    <simpleContent>
      <extension base="mdui:listOfStrings">
        <attribute ref="xml:lang" use="required"/>
      </extension>
    </simpleContent>
  </complexType>
  
  <simpleType name="listOfStrings">
    <list itemType="string"/>
  </simpleType>

  <element name="Logo" type="mdui:LogoType"/>
  <complexType name="LogoType">
    <simpleContent>
      <extension base="anyURI">
        <attribute name="height" type="positiveInteger" use="required"/>
        <attribute name="width" type="positiveInteger" use="required"/>
        <attribute ref="xml:lang"/>
      </extension>
    </simpleContent>
  </complexType>

  <element name="DiscoHints" type="mdui:DiscoHintsType"/>
  <complexType name="DiscoHintsType">
    <choice minOccurs="0" maxOccurs="unbounded">
      <element ref="mdui:IPHint"/>
      <element ref="mdui:DomainHint"/>
      <element ref="mdui:GeolocationHint"/>
      <any namespace="##other" processContents="lax"/>
    </choice>
  </complexType>

  <element name="IPHint" type="string"/>
  <element name="DomainHint" type="string"/>	
  <element name="GeolocationHint" type="anyURI"/>

</schema>