file-transfer.xsd

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

<xs:schema
    xmlns:xs='http://www.w3.org/2001/XMLSchema'
    targetNamespace='http://jabber.org/protocol/si/profile/file-transfer'
    xmlns='http://jabber.org/protocol/si/profile/file-transfer'
    elementFormDefault='qualified'>
  
  <xs:annotation>
    <xs:documentation>
      The protocol documented by this schema is defined in
      XEP-0096: https://xmpp.org/extensions/xep-0096.html
    </xs:documentation>
  </xs:annotation>

  <xs:element name='file'>
    <xs:complexType>
      <xs:sequence minOccurs='0'>
        <xs:element name='desc' type='xs:string'/>
        <xs:element ref='range'/>
      </xs:sequence>
      <xs:attribute name='date' type='xs:dateTime' use='optional'/>
      <xs:attribute name='hash' type='xs:string' use='optional'/>
      <xs:attribute name='name' type='xs:string' use='required'/>
      <xs:attribute name='size' type='xs:integer' use='required'/>
    </xs:complexType>
  </xs:element>
  
  <xs:element name='range'>
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base='empty'>
          <xs:attribute name='length' type='xs:integer' use='optional'/>
          <xs:attribute name='offset' type='xs:integer' 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>