Addition to Hippo's defaultread domain to allow users to read their own groups.

defaultread.xml

<?xml version="1.0" encoding="UTF-8"?><sv:node xmlns:sv="http://www.jcp.org/jcr/sv/1.0" xmlns:h="http://www.onehippo.org/jcr/xmlimport" sv:name="defaultread" h:merge="combine">
  <sv:node sv:name="mygroups">
    <sv:property sv:name="jcr:primaryType" sv:type="Name">
      <sv:value>hipposys:domainrule</sv:value>
    </sv:property>
    <sv:node sv:name="match-members-with-username">
      <sv:property sv:name="jcr:primaryType" sv:type="Name">
        <sv:value>hipposys:facetrule</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:equals" sv:type="Boolean">
        <sv:value>true</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:facet" sv:type="String">
        <sv:value>hipposys:members</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:filter" sv:type="Boolean">
        <sv:value>false</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:type" sv:type="String">
        <sv:value>String</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:value" sv:type="String">
        <sv:value>__user__</sv:value>
      </sv:property>
    </sv:node>
    <sv:node sv:name="type-hippo-group">
      <sv:property sv:name="jcr:primaryType" sv:type="Name">
        <sv:value>hipposys:facetrule</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:equals" sv:type="Boolean">
        <sv:value>true</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:facet" sv:type="String">
        <sv:value>nodetype</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:filter" sv:type="Boolean">
        <sv:value>false</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:type" sv:type="String">
        <sv:value>Name</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:value" sv:type="String">
        <sv:value>hipposys:group</sv:value>
      </sv:property>
    </sv:node>
  </sv:node>
  <sv:node sv:name="hippo-groupfolder">
    <sv:property sv:name="jcr:primaryType" sv:type="Name">
      <sv:value>hipposys:domainrule</sv:value>
    </sv:property>
    <sv:node sv:name="type-hippo-groupfolder">
      <sv:property sv:name="jcr:primaryType" sv:type="Name">
        <sv:value>hipposys:facetrule</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:equals" sv:type="Boolean">
        <sv:value>true</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:facet" sv:type="String">
        <sv:value>jcr:primaryType</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:filter" sv:type="Boolean">
        <sv:value>false</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:type" sv:type="String">
        <sv:value>Name</sv:value>
      </sv:property>
      <sv:property sv:name="hipposys:value" sv:type="String">
        <sv:value>hipposys:groupfolder</sv:value>
      </sv:property>
    </sv:node>
  </sv:node>
</sv:node>

hippoecm-extensions.xml

  <sv:node sv:name="bugaboo-cms-hippo-configuration-hippo-domains-defaultread">
    <sv:property sv:name="jcr:primaryType" sv:type="Name">
      <sv:value>hippo:initializeitem</sv:value>
    </sv:property>
    <sv:property sv:name="hippo:sequence" sv:type="Double">
      <sv:value>30000.3</sv:value>
    </sv:property>
    <sv:property sv:name="hippo:contentresource" sv:type="String">
      <sv:value>configuration/domains/defaultread.xml</sv:value>
    </sv:property>
    <sv:property sv:name="hippo:contentroot" sv:type="String">
      <sv:value>/hippo:configuration/hippo:domains</sv:value>
    </sv:property>
  </sv:node>