hget("auths",$authcookie)) {
if ($r->hget("user:$userid","auth") != $authcookie) return false;
loadUserInfo($userid);
return true;
}
}
return false;
}
function loadUserInfo($userid) {
global $User;
$r = redisLink();
$User['id'] = $userid;
$User['username'] = $r->hget("user:$userid","username");
return true;
}
function redisLink() {
static $r = false;
if ($r) return $r;
$r = new Predis\Client();
return $r;
}
# Access to GET/POST/COOKIE parameters the easy way
function g($param) {
global $_GET, $_POST, $_COOKIE;
if (isset($_COOKIE[$param])) return $_COOKIE[$param];
if (isset($_POST[$param])) return $_POST[$param];
if (isset($_GET[$param])) return $_GET[$param];
return false;
}
function gt($param) {
$val = g($param);
if ($val === false) return false;
return trim($val);
}
function utf8entities($s) {
return htmlentities($s,ENT_COMPAT,'UTF-8');
}
function goback($msg) {
include("header.php");
echo('');
include("footer.php");
exit;
}
function strElapsed($t) {
$d = time()-$t;
if ($d < 60) return "$d seconds";
if ($d < 3600) {
$m = (int)($d/60);
return "$m minute".($m > 1 ? "s" : "");
}
if ($d < 3600*24) {
$h = (int)($d/3600);
return "$h hour".($h > 1 ? "s" : "");
}
$d = (int)($d/(3600*24));
return "$d day".($d > 1 ? "s" : "");
}
function showPost($id) {
$r = redisLink();
$post = $r->hgetall("post:$id");
if (empty($post)) return false;
$userid = $post['user_id'];
$username = $r->hget("user:$userid","username");
$elapsed = strElapsed($post['time']);
$userlink = "".utf8entities($username)."";
echo(''.$userlink.' '.utf8entities($post['body'])."
");
echo('posted '.$elapsed.' ago via web
');
return true;
}
function showUserPosts($userid,$start,$count) {
$r = redisLink();
$key = ($userid == -1) ? "timeline" : "posts:$userid";
$posts = $r->lrange($key,$start,$start+$count);
$c = 0;
foreach($posts as $p) {
if (showPost($p)) $c++;
if ($c == $count) break;
}
return count($posts) == $count+1;
}
function showUserPostsWithPagination($username,$userid,$start,$count) {
global $_SERVER;
$thispage = $_SERVER['PHP_SELF'];
$navlink = "";
$next = $start+10;
$prev = $start-10;
$nextlink = $prevlink = false;
if ($prev < 0) $prev = 0;
$u = $username ? "&u=".urlencode($username) : "";
if (showUserPosts($userid,$start,$count))
$nextlink = "Older posts »";
if ($start > 0) {
$prevlink = "« Newer posts".($nextlink ? " | " : "");
}
if ($nextlink || $prevlink)
echo("$prevlink $nextlink
");
}
function showLastUsers() {
$r = redisLink();
$users = $r->zrevrange("users_by_time",0,9);
echo("
");
}
?>