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tilde.team
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fix for user ban's (merge from envs)

This commit is contained in:
creme 2020-01-16 20:49:37 +01:00 committed by Gitea
parent 1f4846e02d
commit b913bacda9
1 changed files with 55 additions and 13 deletions
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68
signup/signup-handler.php
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@ -2,6 +2,19 @@
require __DIR__.'/../vendor/autoload.php';
require_once "email/smtp.php";
function getUserIpAddr() {
if(!empty($_SERVER['HTTP_CLIENT_IP'])) {
//ip from share internet
$ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
//ip pass from proxy
$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
} else {
$ip = $_SERVER['REMOTE_ADDR'];
}
return $ip;
}
function forbidden_name($name) {
return in_array($name, [
'0x0',
@ -57,31 +70,43 @@ function forbidden_name($name) {
'www',
'znc',
]);
$current = file("/var/signups_current", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
$banned = file("/var/banned_names.txt", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
$tmp = array_merge($forbidden, $current);
$fname = array_merge($tmp, $banned);
}
function forbidden_email($email) {
$femail = file("/var/banned_emails.txt", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
return in_array($email, $femail);
}
$message = "";
if (isset($_REQUEST["username"]) && isset($_REQUEST["email"])) {
// Check the name.
$name = trim($_REQUEST["username"]);
if ($name == "")
$message .= "<li>please fill in your desired username</li>";
$message .= "<li>fill in your desired username</li>\n";
if (strlen($name) > 32)
$message .= "<li>username too long (32 character max)</li>";
$message .= "<li>username too long (32 character max)</li>\n";
if (!preg_match('/^[a-z][a-z0-9]{2,31}$/', $name))
$message .= "<li>username contains invalid characters (lowercase only, must start with a letter)</li>";
if ($name != "" && strlen($name) < 2)
$message .= "<li>username is too short (2 character min)</li>\n";
if ($_REQUEST["sshkey"] == "" || mb_substr($_REQUEST["sshkey"], 0, 4) !== "ssh-")
$message .= '<li>ssh key required: please create one and submit the public key. '
. 'see our <a href="https://tilde.team/wiki/?page=ssh">ssh wiki</a> or '
. 'hop on <a href="https://web.tilde.chat/?join=team">irc</a> and ask for help</li>';
if ($_REQUEST["interest"] == "")
$message .= "<li>please explain why you're interested so we can make sure you're a real human being</li>";
if (strlen($name) > 1 && !preg_match('/^[a-z][a-z0-9]{1,31}$/', $name))
$message .= "<li>username contains invalid characters (lowercase only, must start with a letter).</li>\n";
if (posix_getpwnam($name) || forbidden_name($name))
$message .= "<li>sorry, the username $name is unavailable</li>";
$message .= "<li>sorry, the username $name is unavailable</li>\n";
if ($email == "")
$message .= "<li>fill in your email address</li>\n";
// Check the e-mail address.
$email = trim($_REQUEST["email"]);
@ -93,11 +118,26 @@ if (isset($_REQUEST["username"]) && isset($_REQUEST["email"])) {
$message .= "<li>invalid email address: " . htmlspecialchars($result["error"]) . "</li>";
elseif ($result["email"] != $email)
$message .= "<li>invalid email address. did you mean: " . htmlspecialchars($result["email"]) . "</li>";
if (forbidden_email($email)) {
$user_ip = getUserIpAddr();
$user_info = "$name - $email - $user_ip";
$message .= "<li>your email is banned!<br />IP: $user_ip</li>\n";
file_put_contents("/var/signups_banned", $user_info.PHP_EOL, FILE_APPEND);
}
}
if ($_REQUEST["interest"] == "")
$message .= "<li>please explain why you're interested so we can make sure you're a real human being</li>";
if ($_REQUEST["sshkey"] == "" || mb_substr($_REQUEST["sshkey"], 0, 4) !== "ssh-")
$message .= '<li>ssh key required: please create one and submit the public key. '
. 'see our <a href="https://tilde.team/wiki/?page=ssh">ssh wiki</a> or '
. 'hop on <a href="https://web.tilde.chat/?join=team">irc</a> and ask for help</li>';
// no validation errors
if ($message == "") {
if ($message == "") {
$sshkey = trim($_REQUEST["sshkey"]);
$makeuser = "makeuser {$_REQUEST["username"]} {$_REQUEST["email"]} \"{$sshkey}\"";
@ -113,6 +153,8 @@ $makeuser
echo '<div class="alert alert-success" role="alert">
email sent! we\'ll get back to you soon (usually within a day) with login instructions! <a href="/">back to tilde.team home</a>
</div>';
// temp. add to forbidden to prevent double signups (cleanup after user creation)
file_put_contents("/var/signups_current", $name.PHP_EOL, FILE_APPEND);
file_put_contents("/var/signups", $makeuser.PHP_EOL, FILE_APPEND);
} else {
echo '<div class="alert alert-danger" role="alert">