/**
* Check for uniqueness of the username
*
* @param string $username URL encoded username
*/
public function actionCheckUsername($username)
{
// is this Ajax?
if ($this->request->isAjax()) {
// URL decode & filter out username
$username = Fari_Escape::text(Fari_Decode::url($username));
if (empty($username)) {
$this->renderJson("The username can't be empty.");
} else {
// alphanumeric only?
if (!Fari_Filter::isAlpha($username)) {
$this->renderJson("Only alphanumeric characters are allowed.");
} else {
// do we have a match?
if (!$this->accounts->isUsernameUnique($username)) {
$this->renderJson("The username \"{$username}\" is unavailable, sorry.");
} else {
$this->renderJson('');
}
}
}
} else {
$this->renderTemplate('error404/javascript');
}
}
/**
* Format email and name string to build an email ready header.
* @param string $email Email address
* @param string $name Optional name
* @return string
*/
private function formatEmail($email, $name)
{
try {
// check email validity
if (empty($email) or !Fari_Filter::isEmail($email)) {
throw new Fari_Exception("\"{$email}\" is not a valid email address.");
} else {
$email = "<{$email}>";
// have we provided the name?
if (!empty($name)) {
// only alphanumeric characters allowed
if (!Fari_Filter::isAlpha($name)) {
throw new Fari_Exception("\"{$name}\" needs to contain only alphanumeric characters.");
} else {
// prepend name before the email
return '"' . $name . '" ' . $email;
}
} else {
// add brackets around the email
return $email;
}
}
} catch (Fari_Exception $exception) {
$exception->fire();
}
}
