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validate email addresses to see if the hostnames actually resolve before committing a new user

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This commit is contained in:
Friendika 2010-11-15 20:22:40 -08:00
parent f9497bcb95
commit 949842a88d
2 changed files with 17 additions and 6 deletions
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20
boot.php
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@ -1160,13 +1160,25 @@ function validate_url(&$url) {
$url = 'http://' . $url;
$h = parse_url($url);
if(! $h) {
return false;
if(($h) && (checkdnsrr($h['host'], 'ANY'))) {
return true;
}
if(! checkdnsrr($h['host'], 'ANY')) {
return false;
}}
// checks that email is an actual resolvable internet address
if(! function_exists('validate_email')) {
function validate_email($addr) {
if(! strpos($addr,'@'))
return false;
$h = substr($addr,strpos($addr,'@') + 1);
if(($h) && (checkdnsrr($h, 'ANY'))) {
return true;
}
return true;
return false;
}}
// Check $url against our list of allowed sites,

3
mod/register.php
View file

@ -65,10 +65,9 @@ function register_post(&$a) {
if(! allowed_email($email))
$err .= t('Your email domain is not among those allowed on this site.') . EOL;
if(! valid_email($email))
if((! valid_email($email)) || (! validate_email($email)))
$err .= t('Not a valid email address.') . EOL;
$nickname = $_POST['nickname'] = strtolower($nickname);
if(! preg_match("/^[a-z][a-z0-9\-\_]*$/",$nickname))