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Update includes/signup.php

This commit is contained in:
deepend 2024-01-23 04:23:45 +00:00
parent 0138a6e12d
commit 31dfa8fc34
1 changed files with 14 additions and 13 deletions
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15
includes/signup.php
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@ -38,17 +38,18 @@ if ( $tv == "tildeverse" )
$success = 'success2'; $success = 'success2';
// Check if username already taken // Check if username already taken
exec("id $username 2>&1", $null, $retval); if (posix_getpwnam($username)) {
if($retval == 0)
$success = 'success3'; $success = 'success3';
}
// Check SSH public key format: // Simple SSH public key format check
exec("echo $pubkey | ssh-keygen -l -f - 2>&1", $null, $retval); $valid_key_starts = ['ssh-rsa', 'ssh-dss', 'ecdsa-sha2', 'ssh-ed25519'];
if($retval != 0) $key_parts = explode(' ', $pubkey, 3);
if (!in_array($key_parts[0], $valid_key_starts) || count($key_parts) < 2) {
$success = 'success4'; $success = 'success4';
}
if ( $success == "success2" ) if ($success == "success2") {
{
mail($destination_addr, $subject, $mailbody, $from); mail($destination_addr, $subject, $mailbody, $from);
$fp = fopen($user_queue, 'a'); $fp = fopen($user_queue, 'a');
fwrite($fp, "'$username','$email','$pubkey'\n"); fwrite($fp, "'$username','$email','$pubkey'\n");