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<?php
class kch42_gravatar extends RatatoeskrPlugin
{
public function ste_tag_kch42_gravatar($ste, $params, $sub)
{
if(!isset($params["comment"]))
throw new \ste\RuntimeError("ste:kch42_gravatar needs the comment parameter.");
$ste_comment = $ste->get_var_by_name($params["comment"]);
if(isset($ste_comment["__obj"]))
$comment = $ste_comment["__obj"];
else
$comment = Comment::by_id($ste_comment["id"]);
$mail_hash = md5(strtolower(trim($comment->author_mail)));
$gravatar_args = array("default" => "identicon", "rating" => "g", "size" => "80");
$query_fragments = array();
foreach($gravatar_args as $key => &$value)
{
if(isset($params[$key]))
$value = $params[$key];
$value = htmlspecialchars(urlencode($value));
$query_fragments[] = "$key=$value";
}
$styles = "width: {$gravatar_args["size"]}px; height: {$gravatar_args["size"]}px;" . (isset($params["style"]) ? " " . $params["style"] : "");
$protocol = ((!empty($_SERVER["HTTPS"])) and ($_SERVER["HTTPS"] == "on")) ? "https" : "http";
return "<img src=\"$protocol://www.gravatar.com/avatar/$mail_hash?" . implode("&", $query_fragments) . "\" style=\"" . htmlspecialchars($styles) . "\" alt=\"\" />";
}
public function init()
{
$this->ste->register_tag("kch42_gravatar", array($this, "ste_tag_kch42_gravatar"));
}
}
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