function main()
{
global $HOOKBOX_SECRET, $SCRIPT_EXTERNAL_URL, $POLL_INTERVAL, $CHANNEL_NAME;
$form = array_merge($_GET, $_POST);
// All callbacks we get will have the "action" form key. If we don't see
// that key, then return the static page (a user is visiting this script
// directly in a browser
if (!in_array("action", array_keys($form))) {
return static_page();
}
// If we see the "action" form key, then hookbox is making a request to our
// script. Check to secret to make sure the request is from hookbox.
if ($form["secret"] != $HOOKBOX_SECRET) {
print "[ false, { \"error\": \"Invalid secret\" } ]";
return;
}
switch ($form["action"]) {
// Allow all users to connect; assign them a random name;
case "connect":
$name = uniqid();
echo "[ true, {\"name\": \"{$name}\" } ]";
break;
// Only allow hookbox to create one channel, specified by $CHANNEL_NAME
// Only allow hookbox to create one channel, specified by $CHANNEL_NAME
case "create_channel":
if ($form["channel_name"] == $CHANNEL_NAME) {
$output = array();
$output[0] = true;
$output[1] = array();
// our channel will acquire data by having hookbox poll this script
// (and then rebroadcast it to subscribers)
$output[1]["polling"] = array();
$output[1]["polling"]["url"] = $SCRIPT_EXTERNAL_URL . "?action=poll&secret=" . $HOOKBOX_SECRET;
$output[1]["polling"]["interval"] = $POLL_INTERVAL;
$output[1]["polling"]["mode"] = "simple";
// We'll have hookbox store 30 data points
$output[1]["history_size"] = 30;
$output[1]["history"] = array();
// Those 30 data points should start out pre-populated as the value 0.
for ($i = 0; $i < 30; $i++) {
$output[1]["history"][$i] = array(0 => "PUBLISH", 1 => array("payload" => 0));
}
// returning json: [true, { "polling": { ... }, "history": [ .. ], ... } ]
print_r(json_encode($output));
} else {
$chan = $form["channel_name"];
echo "[ false, {\"error\": \"Cannot create channel {$chan}\"} ]";
}
break;
// Let anyone subscribe to that one channel
// Let anyone subscribe to that one channel
case "subscribe":
echo "[ true, {} ]";
break;
// If the server is polling then print out the server load;
// If the server is polling then print out the server load;
case "poll":
// NOTE: If you aren't on a system with an uptime command then
// try replacing this with some other integer. Perhaps
// something random...
$cpu_usage = explode(',', substr(exec('uptime'), -14));
print $cpu_usage[0];
break;
case "destroy_channel":
// By allowing destroy channel we prevent hookbox from polling this
// script when their are no users watching. On the other hand, we lose
// the graph's history of the last 30 values...
echo "[ true, {} ]";
break;
// Don't allow any other actions, such as publish
// Don't allow any other actions, such as publish
default:
echo "[ false, {} ]";
break;
}
}
<ul class="nav navbar-nav">
<?php
include "./include/nav_menu.php";
?>
</ul>
</div>
<!-- /.navbar-collapse -->
</div>
<!-- /.container -->
</nav>
<!-- Page Content -->
<div class="container textarea">
<div class="row">
<div class="col-lg-12">
<?php
$page_blob = static_page($db, $page);
#var_dump($page_blob);
#echo "<h1>".$page_blob["title"]."</h1>";
echo "<h2 class=\"text-left\">" . $page_blob["callout"] . "</h2>";
echo "<br>";
#echo "<div class=\"container text\">";
echo $page_blob["content"];
#echo "</div>";
?>
</div>
</div>
</div>
