mirror of https://git.envs.net/envs/site.git
136 lines
4.4 KiB
PHP
136 lines
4.4 KiB
PHP
<?php
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function getUserIpAddr() {
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if(!empty($_SERVER['HTTP_CLIENT_IP'])) {
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//ip from share internet
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$ip = $_SERVER['HTTP_CLIENT_IP'];
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} elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
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//ip pass from proxy
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$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
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} else {
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$ip = $_SERVER['REMOTE_ADDR'];
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}
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return $ip;
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}
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function forbidden_name($name) {
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return in_array(
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$name,
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array_merge(
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file("/var/signups_forbidden", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES),
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file("/var/signups_current", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES),
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file("/var/banned_names.txt", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES)
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)
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);
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}
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function forbidden_email($email) {
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$femail = file("/var/banned_emails.txt", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
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return in_array($email, $femail);
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}
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$message = '';
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if (isset($_REQUEST["username"]) && isset($_REQUEST["email"])) {
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$email = $_REQUEST["email"];
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$mailTo = 'hostmaster@envs.net';
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$mailFrom = "$email";
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$mailSubject = 'Signup User Space - envs.net';
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$headers[] = 'MIME-Version: 1.0';
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$headers[] = 'Content-type: text/plain; charset=utf-8';
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$headers[] = "From: $mailFrom";
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//$headers[] = "Cc: $mailFrom";
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// Check the name.
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$name = trim($_REQUEST["username"]);
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if ($name == "")
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$message .= "<li>fill in your desired username</li>\n";
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if (strlen($name) > 32)
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$message .= "<li>username too long (32 character max)</li>\n";
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if ($name != "" && strlen($name) < 2)
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$message .= "<li>username is too short (2 character min)</li>\n";
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if (strlen($name) > 1 && !preg_match('/^[a-z][a-z0-9]{1,31}$/', $name))
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$message .= "<li>username contains invalid characters (lowercase only, must start with a letter).</li>\n";
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if (posix_getpwnam($name) || forbidden_name($name))
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$message .= "<li>sorry, the username $name is unavailable</li>\n";
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// Check the e-mail address.
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$email = trim($_REQUEST["email"]);
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$emailconfirm = trim($_REQUEST["emailconfirm"]);
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if ($email == "")
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$message .= "<li>fill in your email address</li>\n";
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else {
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if ($email != $emailconfirm)
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$message .= "<li>email does not match</li>\n";
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elseif (!filter_var($email, FILTER_VALIDATE_EMAIL))
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$message .= "<li>invalid email format</li>\n";
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elseif ($name != "" && forbidden_email($email)) {
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$user_ip = getUserIpAddr();
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$user_info = "$name - $email - $user_ip";
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$message .= "<li>your email is banned!</li>\n";
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file_put_contents("/var/signups_banned", $user_info.PHP_EOL, FILE_APPEND);
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}
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}
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if ($_REQUEST["interest"] == "")
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$message .= "<li>explain why youre interested so we can make sure youre a real human being</li>\n";
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if ($_REQUEST["sshkey"] == "" || substr($_REQUEST["sshkey"], 0, 4) !== "ssh-")
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$message .= "<li>ssh key required: please submit the public key.</li>\n";
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if ($_REQUEST["iagree"] == "")
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$message .= "<li>you need to agree to our terms.</li>\n";
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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 = "/usr/local/bin/envs_user_manage add {$_REQUEST["username"]} {$_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:
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{$_REQUEST["interest"]}
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$makeuser
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";
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$mailSent = @mail($mailTo, $mailSubject, $msgbody, implode("\r\n", $headers));
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if($mailSent == TRUE) {
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// temp. add to forbidden to prevent double signups (cleanup after user creation)
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file_put_contents("/var/signups_current", $name.PHP_EOL, FILE_APPEND);
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// save signup
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file_put_contents("/var/signups", $makeuser.PHP_EOL, FILE_APPEND);
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echo '<pre class="alert">
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Send your message <big><em>successfully</em></big>!
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Please allow up to 24 hours for a response with login instructions!</pre>';
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} else {
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echo '<pre class="alert">
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something went wrong... :(
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please send an email to <a href="mailto:hostmaster@envs.net">hostmaster@envs.net</a> with details of what happened.</pre>';
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}
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} else {
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?>
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<pre class="alert">
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<h3><i class="fa fa-exclamation-triangle fa-fw" aria-hidden="true"></i> notice:</h3>
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<ul class="alert">
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<?=$message?>
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</ul>
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</pre>
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<?php
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}
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}
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?>
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