<style>
/* Changing the layout to use less space for mobiles */
@media screen and (max-device-width: 480px), screen and (-webkit-min-device-pixel-ratio: 2) {
    #email-body { min-width: 30em !important; }
    #email-page { padding: 8px !important; }
    #email-banner { padding: 8px 8px 0 8px !important; }
    #email-avatar { margin: 1px 8px 8px 0 !important; padding: 0 !important; }
    #email-fields { padding: 0 8px 8px 8px !important; }
    #email-gutter { width: 0 !important; }
}
</style>
<div id="email-body">
<table id="email-wrap" align="center" border="0" cellpadding="0" cellspacing="0" style="background-color:#f0f0f0;color:#000000;width:100%;">
    <tr valign="top">
        <td id="email-page" style="padding:16px !important;">
            <table align="center" border="0" cellpadding="0" cellspacing="0" style="background-color:#ffffff;border:1px solid #bbbbbb;color:#000000;width:100%;">
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                    <td bgcolor="#ffffff" style="background-color:#ffffff;color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;line-height:1;"><img src="https://shibboleth.net/images/shib_240x83.png" alt="" style="vertical-align:top;" /></td>
                </tr><tr valign="top">
    <td id="email-banner" style="padding:32px 32px 0 32px;">

                
        
        
            <table align="left" border="0" cellpadding="0" cellspacing="0" width="100%" style="width:100%;">
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                                        <img id="email-avatar" src="https://issues.shibboleth.net/jira/secure/useravatar?avatarId=10202" alt="" height="48" width="48" border="0" align="left" style="padding:0;margin: 0 16px 16px 0;" />
                        <div id="email-action" style="padding: 0 0 8px 0;font-size:12px;line-height:18px;">
                                    <a class="user-hover" rel="peter@aco.net" id="email_peter@aco.net" href="https://issues.shibboleth.net/jira/secure/ViewProfile.jspa?name=peter%40aco.net" style="color:#326ca6;">Peter Schober</a>
     commented on <img src="https://issues.shibboleth.net/jira/images/icons/issuetypes/improvement.png" height="16" width="16" border="0" align="absmiddle" alt="Improvement"> <a style='color:#326ca6;text-decoration:none;' href='https://issues.shibboleth.net/jira/browse/SSPCPP-634'>SSPCPP-634</a>
            </div>
                        <div id="email-summary" style="font-size:16px;line-height:20px;padding:2px 0 16px 0;">
                <a style='color:#326ca6;text-decoration:none;' href='https://issues.shibboleth.net/jira/browse/SSPCPP-634'><strong>support hide-from-discovery entity category</strong></a>
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    <td id="email-fields" style="padding:0 32px 32px 32px;">
        <table border="0" cellpadding="0" cellspacing="0" style="padding:0;text-align:left;width:100%;" width="100%">
            <tr valign="top">
                <td id="email-gutter" style="width:64px;white-space:nowrap;"></td>
                <td>
                    <table border="0" cellpadding="0" cellspacing="0" width="100%">
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    <td colspan="2" style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 16px 0;width:100%;">
        <div class="comment-block" style="background-color:#edf5ff;border:1px solid #dddddd;color:#000000;padding:12px;"><p>Well, the SP has everything in place, using the <tt>EntityAttributes</tt> <tt>EntityMatcher</tt> within the <tt>MetadataProvider</tt>'s <tt>DiscoveryFilter</tt>. But the spec suggests (somewhat sensibly, if it should have any effect) that "hidden" entities should be so by default:</p>

<blockquote><p>Candidates for the Hide from Discovery entity category are Identity Providers that SHOULD NOT be shown on discovery interfaces by default (i.e., absent other information or explicit choice by the deployer of the discovery service).</p></blockquote>

<p>So that would in fact make this EDS request for improvement into an SP default config issue, i.e., to ship with such a filter pre-configured. Which is pointless, as there is no and cannot be a pre-configured MetadataProvider active in the shipped config. So probably all that's left is including such an example filter in the commented-out <tt>MetadataProvider</tt> in <tt>shibboleth2.xml</tt>, as well as within <tt>example-shibboleth2.xml</tt>:</p>

<div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent">
<pre class="code-xml">&lt;DiscoveryFilter type=<span class="code-quote">"Blacklist"</span> matcher=<span class="code-quote">"EntityAttributes"</span> 
  attributeName=<span class="code-quote">"http://macedir.org/entity-category"</span>
  attributeNameFormat=<span class="code-quote">"urn:oasis:names:tc:SAML:2.0:attrname-format:uri"</span>
  attributeValue=<span class="code-quote">"http://refeds.org/category/hide-from-discovery"</span> /&gt;
</pre>
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</table><!-- End #email-wrap -->
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