On Wed, Mar 21, 2012 at 08:42:54AM +0100, BlackEagle wrote:
this can be used as an intermediate 'patch' util there is a validation system in place.
the extra check is to verify that the domain part of a correctly formatted email address is existing and in use. this will not at all stop spammers since they can use bogus emails with valid domain parts --- web/lib/aur.inc.php | 13 ++++++++++++- 1 files changed, 12 insertions(+), 1 deletions(-)
Applied, thanks!
diff --git a/web/lib/aur.inc.php b/web/lib/aur.inc.php index c662b80..001f23f 100644 --- a/web/lib/aur.inc.php +++ b/web/lib/aur.inc.php @@ -80,7 +80,18 @@ function check_sid($dbh=NULL) { # verify that an email address looks like it is legitimate # function valid_email($addy) { - return (filter_var($addy, FILTER_VALIDATE_EMAIL) !== false); + // check against RFC 3696 + if(filter_var($addy, FILTER_VALIDATE_EMAIL) === false) { + return false; + } + + // check dns for mx, a, aaaa records + list($local, $domain) = explode('@', $addy); + if(! (checkdnsrr($domain, 'MX') || checkdnsrr($domain, 'A') || checkdnsrr($domain, 'AAAA'))) { + return false; + } + + return true; }
# a new seed value for mt_srand() -- 1.7.9.1