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prevent re-registrations using a deleted username - not an issue with Friendica but could create a serious privacy issue with federated platforms

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friendica 2012-03-22 01:46:52 -07:00
commit ebdf0ee99e
6 changed files with 38 additions and 2 deletions
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10
mod/register.php
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@ -150,6 +150,16 @@ function register_post(&$a) {
if(count($r))
$err .= t('Nickname is already registered. Please choose another.') . EOL;
// Check deleted accounts that had this nickname. Doesn't matter to us,
// but could be a security issue for federated platforms.
$r = q("SELECT * FROM `userd`
WHERE `username` = '%s' LIMIT 1",
dbesc($nickname)
);
if(count($r))
$err .= t('Nickname was once registered here and may not be re-used. Please choose another.') . EOL;
if(strlen($err)) {
notice( $err );
return;