/**
* Validate a provided unsubscribe code
*
* @param ElggEntity $container Which newsletter container (ElggSite or ElggGroup)
* @param string|int $recipient The user_guid or email address of the recipient
* @param string $code The unsubscribe code the recipient provided
*
* @return bool true is valid or false on failure
*/
function newsletter_validate_unsubscribe_code(ElggEntity $container, $recipient, $code)
{
$result = false;
if (!empty($container) && (elgg_instanceof($container, "site") || elgg_instanceof($container, "group")) && !empty($recipient)) {
// make sure we have a user_guid or email address
if (is_numeric($recipient) || newsletter_is_email_address($recipient)) {
// generate the code as it should be
$correct_code = newsletter_generate_unsubscribe_code($container, $recipient);
// check for a match
if ($code === $correct_code) {
$result = true;
}
}
}
return $result;
}
/**
* Validate a provided unsubscribe code
*
* @param ElggEntity $container Which newsletter container (ElggSite or ElggGroup)
* @param string|int $recipient The user_guid or email address of the recipient
* @param string $code The unsubscribe code the recipient provided
*
* @return bool true is valid or false on failure
*/
function newsletter_validate_unsubscribe_code(ElggEntity $container, $recipient, $code)
{
if (!elgg_instanceof($container, 'site') && !elgg_instanceof($container, 'group')) {
return false;
}
if (empty($recipient)) {
return false;
}
// make sure we have a user_guid or email address
if (!is_numeric($recipient) && !newsletter_is_email_address($recipient)) {
return false;
}
// generate the code as it should be
$correct_code = newsletter_generate_unsubscribe_code($container, $recipient);
// check for a match
if ($code === $correct_code) {
return true;
}
return false;
}