pubsub.xsd

<?xml version='1.0' encoding='UTF-8'?>

<xs:schema
    xmlns:xs='http://www.w3.org/2001/XMLSchema'
    targetNamespace='http://jabber.org/protocol/pubsub'
    xmlns='http://jabber.org/protocol/pubsub'
    elementFormDefault='qualified'>

  <xs:annotation>
    <xs:documentation>
      The protocol documented by this schema is defined in
      XEP-0060: https://xmpp.org/extensions/xep-0060.html
    </xs:documentation>
  </xs:annotation>

  <xs:import
      namespace='jabber:x:data'
      schemaLocation='https://xmpp.org/schemas/x-data.xsd'/>

  <xs:element name='pubsub'>
    <xs:complexType>
      <xs:choice>
        <xs:sequence>
          <xs:element ref='create'/>
          <xs:element ref='configure' minOccurs='0'/>
        </xs:sequence>
        <xs:sequence>
          <xs:element ref='subscribe' minOccurs='0'/>
          <xs:element ref='options' minOccurs='0'/>
        </xs:sequence>
        <xs:sequence>
          <xs:element ref='publish'/>
          <xs:element ref='publish-options' minOccurs='0'/>
        </xs:sequence>
        <xs:choice minOccurs='0'>
          <xs:element ref='affiliations'/>
          <xs:element ref='default'/>
          <xs:element ref='items'/>
          <xs:element ref='retract'/>
          <xs:element ref='subscription'/>
          <xs:element ref='subscriptions'/>
          <xs:element ref='unsubscribe'/>
        </xs:choice>
      </xs:choice>
    </xs:complexType>
  </xs:element>

  <xs:element name='affiliations'>
    <xs:complexType>
      <xs:sequence>
        <xs:element ref='affiliation' minOccurs='0' maxOccurs='unbounded'/>
      </xs:sequence>
      <xs:attribute name='node' type='xs:string' use='required'/>
    </xs:complexType>
  </xs:element>

  <xs:element name='affiliation'>
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base='empty'>
          <xs:attribute name='affiliation' use='required'>
            <xs:simpleType>
              <xs:restriction base='xs:NCName'>
                <xs:enumeration value='member'/>
                <xs:enumeration value='none'/>
                <xs:enumeration value='outcast'/>
                <xs:enumeration value='owner'/>
                <xs:enumeration value='publisher'/>
                <xs:enumeration value='publish-only'/>
              </xs:restriction>
            </xs:simpleType>
          </xs:attribute>
          <xs:attribute name='node' type='xs:string' use='required'/>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>

  <xs:element name='configure'>
    <xs:complexType>
      <xs:choice minOccurs='0' xmlns:xdata='jabber:x:data'>
        <xs:element ref='xdata:x'/>
      </xs:choice>
    </xs:complexType>
  </xs:element>

  <xs:element name='create'>
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base='empty'>
          <xs:attribute name='node' type='xs:string' use='optional'/>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>

  <xs:element name='default'>
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base='empty'>
          <xs:attribute name='node' type='xs:string' use='optional'/>
          <xs:attribute name='type'
                        use='optional'
                        default='leaf'>
            <xs:simpleType>
              <xs:restriction base='xs:NCName'>
                <xs:enumeration value='collection'/>
                <xs:enumeration value='leaf'/>
              </xs:restriction>
            </xs:simpleType>
          </xs:attribute>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>

  <xs:element name='items'>
    <xs:complexType>
      <xs:sequence>
        <xs:element ref='item' minOccurs='0' maxOccurs='unbounded'/>
      </xs:sequence>
      <xs:attribute name='max_items' type='xs:positiveInteger' use='optional'/>
      <xs:attribute name='node' type='xs:string' use='required'/>
      <xs:attribute name='subid' type='xs:string' use='optional'/>
    </xs:complexType>
  </xs:element>

  <xs:element name='item'>
    <xs:complexType>
      <xs:sequence minOccurs='0'>
        <xs:any namespace='##other'/>
      </xs:sequence>
      <xs:attribute name='id' type='xs:string' use='optional'/>
    </xs:complexType>
  </xs:element>

  <xs:element name='options'>
    <xs:complexType>
      <xs:sequence minOccurs='0'>
        <xs:any namespace='jabber:x:data'/>
      </xs:sequence>
      <xs:attribute name='jid' type='xs:string' use='required'/>
      <xs:attribute name='node' type='xs:string' use='optional'/>
      <xs:attribute name='subid' type='xs:string' use='optional'/>
    </xs:complexType>
  </xs:element>

  <xs:element name='publish'>
    <xs:complexType>
      <xs:sequence>
        <xs:element ref='item' minOccurs='0' maxOccurs='unbounded'/>
      </xs:sequence>
      <xs:attribute name='node' type='xs:string' use='required'/>
    </xs:complexType>
  </xs:element>

  <xs:element name='publish-options'>
    <xs:complexType>
      <xs:choice minOccurs='0' xmlns:xdata='jabber:x:data'>
        <xs:element ref='xdata:x'/>
      </xs:choice>
    </xs:complexType>
  </xs:element>

  <xs:element name='retract'>
    <xs:complexType>
      <xs:sequence>
        <xs:element ref='item' minOccurs='1' maxOccurs='unbounded'/>
      </xs:sequence>
      <xs:attribute name='node' type='xs:string' use='required'/>
      <xs:attribute name='notify' type='xs:boolean' use='optional'/>
    </xs:complexType>
  </xs:element>

  <xs:element name='subscribe-options'>
    <xs:complexType>
      <xs:sequence>
        <xs:element name='required' type='empty' minOccurs='0'/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>

  <xs:element name='subscribe'>
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base='empty'>
          <xs:attribute name='jid' type='xs:string' use='required'/>
          <xs:attribute name='node' type='xs:string' use='optional'/>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>

  <xs:element name='subscriptions'>
    <xs:complexType>
      <xs:sequence minOccurs='0' maxOccurs='unbounded'>
        <xs:element ref='subscription'/>
      </xs:sequence>
      <xs:attribute name='node' type='xs:string' use='optional'/>
    </xs:complexType>
  </xs:element>

  <xs:element name='subscription'>
    <xs:complexType>
      <xs:sequence>
        <xs:element ref='subscribe-options' minOccurs='0'/>
      </xs:sequence>
      <xs:attribute name='jid' type='xs:string' use='required'/>
      <xs:attribute name='node' type='xs:string' use='optional'/>
      <xs:attribute name='subid' type='xs:string' use='optional'/>
      <xs:attribute name='subscription' use='optional'>
        <xs:simpleType>
          <xs:restriction base='xs:NCName'>
            <xs:enumeration value='none'/>
            <xs:enumeration value='pending'/>
            <xs:enumeration value='subscribed'/>
            <xs:enumeration value='unconfigured'/>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>

  <xs:element name='unsubscribe'>
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base='empty'>
          <xs:attribute name='jid' type='xs:string' use='required'/>
          <xs:attribute name='node' type='xs:string' use='optional'/>
          <xs:attribute name='subid' type='xs:string' use='optional'/>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>

  <xs:simpleType name='empty'>
    <xs:restriction base='xs:string'>
      <xs:enumeration value=''/>
    </xs:restriction>
  </xs:simpleType>

</xs:schema>