friendica/addon/pages/pages.php

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<?php
/**
* Name: Pages
* Description: Shows lists of community pages
* Version: 1.0
* Author: Michael Vogel <ike@piratenpartei.de>
*
*/
function pages_install() {
register_hook('page_end', 'addon/pages/pages.php', 'pages_page_end');
}
function pages_uninstall() {
unregister_hook('page_end', 'addon/pages/pages.php', 'pages_page_end');
}
function pages_iscommunity($url, &$pagelist) {
// check every week for the status - should be enough
if ($pagelist[$url]["checked"]<time()-86400*7) {
// When too old or not found fetch the status from the profile
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 2);
$page = curl_exec($ch);
curl_close($ch);
$iscommunity = (strpos($page, '<meta name="friendika.community" content="true" />') != 0);
$pagelist[$url] = array("community" => $iscommunity, "checked" => time());
} else // Fetch from cache
$iscommunity = $pagelist[$url]["community"];
return($iscommunity);
}
function pages_getpages($uid) {
// Fetch cached pagelist from configuration
$pagelist = get_pconfig($uid,'pages','pagelist');
if (sizeof($pagelist) == 0)
$pagelist = array();
$contacts = q("SELECT `id`, `url`, `Name` FROM `contact`
WHERE `network`= 'dfrn' AND `uid` = %d",
intval($uid));
$pages = array();
// Look if the profile is a community page
foreach($contacts as $contact) {
if (pages_iscommunity($contact["url"], $pagelist))
$pages[] = array("url"=>$contact["url"], "Name"=>$contact["Name"]);
}
// Write back cached pagelist
set_pconfig($uid,'pages','pagelist', $pagelist);
return($pages);
}
function pages_page_end($a,&$b) {
// Only move on if if it's the "network" module and there is a logged on user
if (($a->module != "network") OR ($a->user['uid'] == 0))
return;
$pages = '<div id="pages-sidebar" class="widget">
<div class="title tool">
<h3>'.t("Community").'</h3></div>
<div id="sidebar-pages-list"><ul>';
$contacts = pages_getpages($a->user['uid']);
foreach($contacts as $contact) {
$pages .= '<li class="tool"><a href="'.$contact["url"].'" class="label" target="external-link">'.$contact["Name"]."</a></li>";
}
$pages .= "</ul></div></div>";
if (sizeof($contacts) > 0)
$a->page['aside'] = $pages.$a->page['aside'];
}
?>