132 lines
3.6 KiB
PHP
132 lines
3.6 KiB
PHP
<?php
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// this code is from tilde.club's site!!
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// tildegit.org/club/site/
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// github.com/tildeclub/site/
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require_once "email/smtp.php";
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function forbidden_name($name) {
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return in_array($name, [
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'0x0',
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'abuse',
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'admin',
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'administrator',
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'auth',
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'autoconfig',
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'bbj',
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'broadcasthost',
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'cloud',
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'forum',
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'ftp',
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'git',
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'gopher',
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'hostmaster',
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'imap',
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'info',
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'irc',
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'is',
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'isatap',
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'it',
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'localdomain',
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'localhost',
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'lounge',
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'mail',
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'mailer-daemon',
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'marketing',
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'marketting',
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'mis',
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'news',
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'nobody',
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'noc',
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'noreply',
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'pop',
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'pop3',
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'postmaster',
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'retro',
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'root',
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'sales',
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'security',
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'smtp',
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'ssladmin',
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'ssladministrator',
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'sslwebmaster',
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'support',
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'sysadmin',
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'team',
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'usenet',
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'uucp',
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'webmaster',
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'wpad',
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'www',
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'znc',
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]);
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}
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$message = "";
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if (isset($_REQUEST["username"]) && isset($_REQUEST["email"])) {
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// Check the name.
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$name = trim($_REQUEST["username"]);
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if ($name == "")
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$message .= "<li>please fill in your desired username</li>";
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if (strlen($name) > 32)
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$message .= "<li>username too long (32 character max)</li>";
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if (!preg_match('/^[a-z][a-z0-9]{1,31}$/', $name))
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$message .= "<li>username contains invalid characters (lowercase ascii only, must start with a letter)</li>";
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if ($_REQUEST["sshkey"] == "" || mb_substr($_REQUEST["sshkey"], 0, 4) !== "ssh-")
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$message .= '<li>ssh key required: please create one and submit the public key.</li>';
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if ($_REQUEST["interest"] == "")
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$message .= "<li>please explain why you're interested so we can make sure you're a real human being</li>";
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if (posix_getpwnam($name) || forbidden_name($name))
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$message .= "<li>sorry, the username $name is unavailable</li>";
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// Check the e-mail address.
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$email = trim($_REQUEST["email"]);
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if ($email == "")
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$message .= "<li>please fill in your email address</li>";
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else {
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$result = SMTP::MakeValidEmailAddress($_REQUEST["email"]);
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if (!$result["success"])
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$message .= "<li>invalid email address: " . htmlspecialchars($result["error"]) . "</li>";
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elseif ($result["email"] != $email)
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$message .= "<li>invalid email address. did you mean: " . htmlspecialchars($result["email"]) . "</li>";
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}
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// no validation errors
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if ($message == "") {
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$sshkey = trim($_REQUEST["sshkey"]);
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$makeuser = "makeuser {$_REQUEST["username"]} {$_REQUEST["email"]} \"{$sshkey}\"";
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$msgbody = "
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username: {$_REQUEST["username"]}
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email: {$_REQUEST["email"]}
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reason: {$_REQUEST["interest"]}
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$makeuser
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";
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if (mail('fen', 'new tilde.pw signup', $msgbody)) {
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echo '
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email sent! we\'ll get back to you soon (usually within a day) with login instructions! <a href="/">back to tilde.pw</a>
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';
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file_put_contents("/var/signups", $makeuser.PHP_EOL, FILE_APPEND);
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} else {
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echo '
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something went wrong... please send an email to <a href="mailto:sudo@tilde.pw">sudo@tilde.pw</a> with details of what happened
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';
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}
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} else {
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?>
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<strong>please correct the following errors: </strong>
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<?=$message?>
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<?php
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}
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}
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?>
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