A user agreement is a legal agreement between a provider and his user, with two buttons - Accept and Do not accept.
The XML of the user agreement is the HTML that should be displayed on the page:
XML:
<doc lang="ru" func="desktop" binary="/ipmgr" host="https://127.0.0.1:1500" theme="/manimg/orion/" stylesheet="eula">
<h1>License agreement</h1>
<p>The following text is a public offer.</p>
...
</doc>
Clicking "Accept" will redirect you to MGR_URL?func=eula&answer=agree and then to the desktop function.Clicking "Do not accept" will redirect to MGR_URL?func=eula&answer=decline and then to the Login form.