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First working APT code.  
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<?php
#
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# Copyright (c) 2000-2014 University of Utah and the Flux Group.
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# 
# {{{EMULAB-LICENSE
# 
# This file is part of the Emulab network testbed software.
# 
# This file is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
# 
# This file is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public
# License for more details.
# 
# You should have received a copy of the GNU Affero General Public License
# along with this file.  If not, see <http://www.gnu.org/licenses/>.
# 
# }}}
#
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$APTHOST	= "$WWWHOST";
$APTBASE	= "$TBBASE/apt";

#
# Global flag to disable accounts. We do this on some pages which
# should not display login/account info.
#
$disable_accounts = 0;

#
# So, we could be coming in on the alternate APT address (virtual server)
# which causes cookie problems. I need to look into avoiding this problem
# but for now, just change the global value of the TBAUTHDOMAIN when we do.
# The downside is that users will have to log in twice if they switch back
# and forth.
#
if ($TBMAINSITE && $_SERVER["SERVER_NAME"] == "www.aptlab.net") {
    $TBAUTHDOMAIN = ".aptlab.net";
    $APTHOST      = "www.aptlab.net";
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    $WWWHOST      = "www.aptlab.net";
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    $APTBASE      = "https://www.aptlab.net";
}
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#
# Redefine this so APT errors are styled properly.
#
$PAGEERROR_HANDLER = function($msg, $status_code = 0) {
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    global $drewheader;

    if (! $drewheader) {
	SPITHEADER();
    }
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    echo $msg;
    echo "<script src='js/lib/require.js' data-main='js/null.js'></script>\n";
    SPITFOOTER();
    die("");
};
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function SPITHEADER($thinheader = 0)
{
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    global $TBMAINSITE;
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    global $login_user, $login_status;
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    global $disable_accounts, $page_title, $drewheader;
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    $title = "AptLab";
    if (isset($page_title)) {
	$title .= " - $page_title";
    }
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    $height = ($thinheader ? 150 : 250);
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    $drewheader = 1;
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    #
    # Figure out who is logged in, if anyone.
    #
    if (($login_user = CheckLogin($status)) != null) {
	$login_status = $status;
	$login_uid    = $login_user->uid();
    }
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    echo "<html>
      <head>
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        <title>$title</title>
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        <link rel='stylesheet' href='bootstrap/css/bootstrap.css'>
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        <link rel='stylesheet' href='quickvm.css'>
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	<script src='js/common.js'></script>
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        <script src='https://www.emulab.net/emulab_sup.js'></script>
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      </head>
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    <body style='display: none'>\n";
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    if ($TBMAINSITE && file_exists("../google-analytics.php")) {
	readfile("../google-analytics.php");
    }
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    echo "
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    <!-- Container for body, needed for sticky footer -->
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    <div id='wrap'>
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         <div class='navbar navbar-static-top' role='navigation'>
           <div class='navbar-inner'>
             <div class='brand'>
                 <img src='aptlogo.png'/>
             </div>
             <ul class='nav navbar-nav navbar-right'>";
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    if (!$disable_accounts) {
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	if ($login_user && ISADMINISTRATOR()) {
	    echo "<li>\n";
	    if (ISADMIN()) {
		$url = CreateURL("toggle", $login_user,
				 "type", "adminon", "value", 0);
		
		echo "<a href='/$url'>
                             <img src='/redball.gif'
                                  style='height: 10px;'
                                  border='0' alt='Admin On'></a>\n";
	    }
	    else {
		$url = CreateURL("toggle", $login_user,
				 "type", "adminon", "value", 1);

		echo "<a href='/$url'>
                              <img src='/greenball.gif'
                                   style='height: 10px;'
                                   border='0' alt='Admin Off'></a>\n";
	    }
	    echo "</li>\n";
	}
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	echo "<li id='loginstatus'>".
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	    ($login_user ? "<p class='navbar-text'>$login_uid logged in</p>" : "") . "</li>\n";
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	if (!NOLOGINS()) {
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	    echo "<li id='signupitem' " .
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		($login_user ? "class='hidden'" : "") . ">" .
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                    "<form><a class='btn btn-primary navbar-btn'
                           id='signupbutton'
                           href='signup.php'>
                        Sign Up</a></form></li>
                  \n";
	    echo "<li id='loginitem' " .
		($login_user ? "class='hidden'" : "") . ">" .
                    "<form><a class='btn btn-primary navbar-btn'
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                           id='loginbutton'
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	                   data-toggle='modal'
                           href='#quickvm_login_modal'
                           data-target='#quickvm_login_modal'>
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                        Login</a></form></li>
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                  \n";
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	}
    }
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    echo "   </ul>
             <ul class='nav navbar-nav navbar-left'>
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                <li><form><a class='btn btn-quickvm-home navbar-btn'
                       href='instantiate.php'>Home</a></form></li>\n";
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    if (!$disable_accounts) {
	echo "  <li id='quickvm_actions_menu' class='dropdown ".
	    (!$login_user ? "hidden" : "") . "'>" .
	         "<a href='#' class='dropdown-toggle' data-toggle='dropdown'>
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                    Actions <b class='caret'></b></a>
                  <ul class='dropdown-menu'>
                   <li><a href='myprofiles.php'>My Profiles</a></li>
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                   <li><a href='myexperiments.php'>My Experiments</a></li>
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                   <li><a href='manage_profile.php'>Create Profile</a></li>
                   <li class='divider'></li>
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	           <li><a href='logout.php'>Logout</a></li>
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                  </ul>
                </li>\n";
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    }
    echo "   </ul>
           </div>
         </div>\n";
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    SpitLoginModal("quickvm_login_modal");
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    echo " <!-- Page content -->
           <div class='container'>\n";
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}

function SPITFOOTER()
{
    echo "</div>
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      </div>\n";
    echo "
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      <!--- Footer -->
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      <div>
       <div id='footer'>
        <div class='pull-left'>Powered by
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             <img src='emulab-whiteout.png' id='elabpower'></div>
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        <div class='pull-right'>&copy; 2014 The University of Utah</div>
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       </div>
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      </div>
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      <!-- Placed at the end of the document so the pages load faster -->
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     </body></html>\n";
}
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function SPITUSERERROR($msg)
{
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    PAGEERROR($msg, 0);
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}
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#
# Does not return; page exits.
#
function SPITAJAX_RESPONSE($value)
{
    $results = array(
	'code'  => 0,
	'value' => $value
	);
    echo json_encode($results);
}
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function SPITAJAX_ERROR($code, $msg)
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{
    $results = array(
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	'code'  => code,
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	'value' => $msg
	);
    echo json_encode($results);
}
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#
# Spit out an info tooltip.
#
function SpitToolTip($info)
{
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    echo "<a href='#' class='btn btn-xs' data-toggle='popover' ".
	"data-content='$info'> ".
        "<span class='glyphicon glyphicon-question-sign'></span> ".
        "</a>\n";
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}
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#
# Spit out the verify modal. We are not using real password authentication
# like the rest of the Emulab website. Assumed to be inside of a form
# that handles a create button.
#
function SpitVerifyModal($id, $label)
{
    echo "<!-- This is the user verify modal -->
          <div id='$id' class='modal fade'>
            <div class='modal-dialog'>
            <div class='modal-content'>
               <div class='modal-header'>
                <button type='button' class='close' data-dismiss='modal'
                   aria-hidden='true'>&times;</button>
                <h3>Important</h3>
               </div>
               <div class='modal-body'>
                    <p>Check your email for a verification code, and
                       enter it here:</p>
                       <div class='form-group'>
                        <input name='verify' class='form-control'
                               placeholder='Verification code'
                               autofocus type='text' />
                       </div>
                       <div class='form-group'>
                        <button class='btn btn-primary form-control'
                            type='submit' name='create'>
                            $label</button>
                       </div>
               </div>
            </div>
            </div>
         </div>\n";
}

#
# Spit out the login modal. 
#
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function SpitLoginModal($id)
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{
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?>
    <!-- This is the login modal -->
    <div id='<?php echo $id ?>' class='modal fade' role='dialog'>
        <div class='modal-dialog'>
        <form id='quickvm_login_form'
              role='form'
              method='post' action='login.php'>
        <input type=hidden name=refer value=1>
        <div id='quickvm_login_form_error'
             class='align-center'></div>
        <div class='modal-content'>
           <div class='modal-header'>
            <button type='button' class='close' data-dismiss='modal'
               aria-hidden='true'>&times;</button>
               <h4 class='modal-title'>Log in to Apt</h4>
           </div>
           <div class='modal-body form-horizontal'>
             <div class='form-group'>
                       <label for='uid' class='col-sm-2 control-label'>Username</label>
                       <div class='col-sm-10'>
                           <input name='uid' class='form-control'
                                  placeholder='Aptlab.net or Emulab.net Username'
                                  autofocus type='text'>
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                       </div>
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                   </div>
                   <div class='form-group'>
                       <label for='password' class='col-sm-2 control-label'>Password </label>
                       <div class='col-sm-10'>
                           <input name='password' class='form-control'
                                  placeholder='Password'
                                  type='password'>
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                       </div>
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                   </div>
             </div>
             <div class='modal-footer'>
                   <div class='form-group'>
                        <button class='btn btn-success btn-sm'
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                            id='quickvm_login_modal_button'
                            class='form-control'
                            type='submit' name='login'>
                            Login</button>
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                   </div>
             </div>
        </div>
        </form>
        </div>
     </div>
<?php
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}
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#
# Topology view modal, shared across a few pages.
#
function SpitTopologyViewModal($modal_name, $profile_array)
{
    echo "<!-- This is the topology view modal -->
          <div id='$modal_name' class='modal fade'>
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          <div class='modal-dialog'  id='showtopo_dialog'>
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            <div class='modal-content'>
               <div class='modal-header'>
                <button type='button' class='close' data-dismiss='modal'
                   aria-hidden='true'>
                   &times;</button>
                <h3>Select a Profile</h3>
               </div>
               <div class='modal-body'>
                 <!-- This topo diagram goes inside this div -->
                 <div class='panel panel-default'
                            id='showtopo_container'>
                  <div class='form-group pull-left'>
                    <ul class='list-group' id='profile_name'
                            name='profile'
                            >\n";
    while (list ($id, $title) = each ($profile_array)) {
	$selected = "";
	if ($profile_value == $id)
	    $selected = "selected";
                      
	echo "          <li class='list-group-item profile-item' $selected
                            value='$id'>$title </li>\n";
    }
    echo "          </ul>
                  </div> 
                  <div class='pull-right'>
                    <span id='showtopo_title'></span>
                    <div class='panel-body'>
                     <div id='showtopo_div'></div>
                     <span class='pull-left' id='showtopo_description'></span>
                    </div>
                   </div>
                 </div>
                 <div id='showtopo_buttons' class='pull-right'>
                     <button id='showtopo_select'
                           class='btn btn-primary btn-sm'
                           type='submit' name='select'>
                              Select Profile</button>
                      <button type='button' class='btn btn-default btn-sm' 
                      data-dismiss='modal' aria-hidden='true'>
                     Cancel</button>
                    </div>
               </div>
            </div>
          </div>
       </div>\n";
}
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#
# Generate an authentication object to pass to the browser that
# is passed to the web server on boss. This is used to grant
# permission to the user to invoke ssh to a local node using their
# emulab generated (no passphrase) key. This is basically a clone
# of what GateOne does, but that code was a mess. 
#
function SSHAuthObject($uid, $nodeid)
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{
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    global $USERNODE;
	
    $file = "/usr/testbed/etc/sshauth.key";
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    #
    # We need the secret that is shared with ops.
    #
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    $fp = fopen($file, "r");
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    if (! $fp) {
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	TBERROR("Error opening $file", 0);
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	return null;
    }
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    $key = fread($fp, 128);
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    fclose($fp);
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    if (!$key) {
	TBERROR("Could not get key from $file", 0);
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	return null;
    }
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    $key   = chop($key);
    $stuff = GENHASH();
    $now   = time();
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First checkin of shellinabox support for APT.  
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    $authobj = array('uid'       => $uid,
		     'stuff'     => $stuff,
		     'nodeid'    => $nodeid,
		     'timestamp' => $now,
		     'baseurl'   => "https://${USERNODE}",
		     'signature_method' => 'HMAC-SHA1',
		     'api_version' => '1.0',
		     'signature' => hash_hmac('sha1',
					      $uid . $stuff . $nodeid . $now,
					      $key),
    );
    return json_encode($authobj);
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}

#
# This is a little odd; since we are using our local CM to create
# the experiment, we can just ask for the graphic directly.
#
function GetTopoMap($uid, $pid, $eid)
{
    global $TBSUEXEC_PATH;
    $xmlstuff = "";
    
    if ($fp = popen("$TBSUEXEC_PATH nobody nobody webvistopology ".
		    "-x -s $uid $pid $eid", "r")) {

	while (!feof($fp) && connection_status() == 0) {
	    $string = fgets($fp);
	    if ($string) {
		$xmlstuff .= $string;
	    }
	}
	return $xmlstuff;
    }
    else {
	return "";
    }
}
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Checkpoint a slew of changes to the APT code. New signup page,  
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#
# Redirect request to https
#
function RedirectSecure()
{
    global $APTHOST;

    if (!isset($_SERVER["SSL_PROTOCOL"])) {
	header("Location: https://$APTHOST". $_SERVER['REQUEST_URI']);
	exit();
    }
}
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Minor tweaks.  
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#
# Redirect to the login page()
#
function RedirectLoginPage()
{
    # HTTP_REFERER will not work reliably when redirecting so
    # pass in the URI for this page as an argument
    header("Location: login.php?referrer=".
	   urlencode($_SERVER['REQUEST_URI']));
}
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Add some "about apt" text to the instantiate page  
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function SpitAboutApt()
{
?>

<div class="panel panel-info">

<div class="panel-heading">
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Tweak about panel.  
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   <h5><a data-toggle="collapse" href="#aboutapt">What is Apt? <span class="glyphicon glyphicon-chevron-right pull-right"></span></a></h5>
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</div>

<div id="aboutapt" class="panel-collapse collapse">

<div class="panel-body">

<p>
Apt is a testbed facility build around <em>profiles</em>.
A profile describes an <em>experiment</em>; when you instantiate a profile,
    that specification is realized on the Apt cluster using virtual or
    physical machines.
The creator of a profile may put code, data, and other resources into it,
    and the profile may consist of a single machine or may describe an
    entire network.
</p>

<p>
Apt is a platform for sharing research; it is open to all researchers, 
    educators, and students.
Basic access to Apt is provided without account registration to keep the
    barriers to accessing research results low.
If you find the limited resources that are provided to unregistered users 
    useful, you may want to <a href="signup.php">sign up</a> for a (free)
    account to get access to more resources and to create profiles of your
    own.
</p>

<p>
Apt is built on <a href="http:/www.emulab.net">Emulab</a> and
    <a href="http://www.geni.net">GENI</a> technologies.
It is built and operated by the <a href="http://www.utah.edu">University of 
    Utah</a>'s <a href="http://www.flux.utah.edu">Flux Research Group</a>
    with support from NSF under award CNS-1338155.
</p>

</div> <!-- Panel body -->
</div> <!-- Collapser -->
</div> <!-- Panel -->
<?
}
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First working APT code.  
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?>