please fill in your desired username"; if (strlen($name) > 32) $message .= "

username too long (32 character max)

"; if (!preg_match('/^[a-z][a-z0-9]{1,31}$/', $name)) $message .= "

username contains invalid characters (lowercase ascii only, must start with a letter)

"; if ($_REQUEST["sshkey"] == "" || mb_substr($_REQUEST["sshkey"], 0, 4) !== "ssh-") $message .= '

ssh key required: please create one and submit the public key.

'; if ($_REQUEST["interest"] == "") $message .= "

please explain why you're interested so we can make sure you're a real human being

"; if (posix_getpwnam($name) || forbidden_name($name)) $message .= "

sorry, the username $name is unavailable

"; // Check the e-mail address. $email = trim($_REQUEST["email"]); if ($email == "") $message .= "

please fill in your email address

"; else { $result = SMTP::MakeValidEmailAddress($_REQUEST["email"]); if (!$result["success"]) $message .= "

invalid email address: " . htmlspecialchars($result["error"]) . "

"; elseif ($result["email"] != $email) $message .= "

invalid email address. did you mean: " . htmlspecialchars($result["email"]) . "

"; } // no validation errors if ($message == "") { $sshkey = trim($_REQUEST["sshkey"]); $makeuser = "makeuser {$_REQUEST["username"]} {$_REQUEST["email"]} \"{$sshkey}\""; $msgbody = " username: {$_REQUEST["username"]} email: {$_REQUEST["email"]} reason: {$_REQUEST["interest"]} $makeuser "; if (mail('fen', 'new tilde.pw signup', $msgbody)) { echo ' email sent! we\'ll get back to you soon (usually within a day) with login instructions! back to tilde.pw '; file_put_contents("/var/signups", $makeuser.PHP_EOL, FILE_APPEND); } else { echo ' something went wrong... please send an email to sudo@tilde.pw with details of what happened '; } } else { ?> please correct the following errors: