nextcloud/apps/federation/templates/settings-admin.php

<?php
/** @var array $_ */
use OCA\Federation\TrustedServers;

/** @var OC_L10N $l */
script('federation', 'settings-admin');
style('federation', 'settings-admin')
?>
<div id="ocFederationSettings" class="section">
	<h2><?php p($l->t('Federation')); ?></h2>
	<em><?php p($l->t('ownCloud Federation allows you to connect with other trusted ownClouds to exchange the user directory. For example this will be used to auto-complete external users for federated sharing.')); ?></em>

	<p>
		<input id="autoAddServers" type="checkbox" class="checkbox" <?php if($_['autoAddServers']) p('checked'); ?> />
		<label for="autoAddServers">Add server automatically once a federated share was created successfully</label>
	</p>

	<h3>Trusted ownCloud Servers</h3>
	<p id="ocFederationAddServer">
		<button id="ocFederationAddServerButton" class="">+ Add ownCloud server</button>
		<input id="serverUrl" class="hidden" type="text" value="" placeholder="ownCloud Server" name="server_url"/>
		<span class="msg"></span>
	</p>
	<ul id="listOfTrustedServers">
		<?php foreach($_['trustedServers'] as $trustedServer) { ?>
			<li id="<?php p($trustedServer['id']); ?>" class="icon-delete">
				<?php if((int)$trustedServer['status'] === TrustedServers::STATUS_OK) { ?>
					<span class="status success"></span>
				<?php } elseif((int)$trustedServer['status'] === TrustedServers::STATUS_PENDING) { ?>
					<span class="status indeterminate"></span>
				<?php } else {?>
					<span class="status error"></span>
				<?php } ?>
				<?php p($trustedServer['url']); ?>
			</li>
		<?php } ?>
	</ul>

</div>