emailproxy-ui/emailproxy-ui.php

<?php
session_start();
ini_set('session.cookie_lifetime', 0);  // till browser closes
ini_set('session.gc_maxlifetime', 600);  // 10 minutes
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

if (!isset($_SESSION['form_token'])) {
    $_SESSION['form_token'] = bin2hex(random_bytes(32));
}

if (isset($_SESSION['form_success']) && $_SESSION['form_success']) {
    $_SESSION['form_success'] = false;
}

// dont ask why i have this here
if (isset($_SESSION['success_message'])) {
    $success = $_SESSION['success_message'];
    unset($_SESSION['success_message']);
}

// load the config (edit this to your needs)
$config = parse_ini_file('/home/crt/helper-emailproxy/config/config.env');

$configPath = $config['EMAILPROXY_CONFIG_FILE'];
$authBaseConfigPath = $config['EMAILPROXY_AUTH_CONFIG'] ?? '/home/crt/helper-emailproxy/config/emailproxy-auth.config'; // base config path plus fallback to my default service user
$logPath = $config['EMAILPROXY_LOG_FILE'];
$allowedDomains = array_map('trim', explode(',', $config['ALLOWED_DOMAINS']));
$debugWeb = isset($config['DEBUG_WEB']) && in_array(strtolower($config['DEBUG_WEB']), ['1', 'true', 'yes'], true);
$debugLogFile = $config['DEBUG_WEB_LOG_FILE'] ?? '/tmp/web-debug.log';
$authTimeout = 600; // if le auth session is not done in le 10 minutes welp too bad
$publicMode = isset($config['PUBLIC']) && in_array(strtolower($config['PUBLIC']), ['1', 'true', 'yes'], true);
$emailproxyExec = $config['EMAILPROXY_EXECUTABLE'];
$commandPort = 8765; // little port to talk back to the auth-injector, should probably secure this more

$mailServerName = $config['MAIL_SERVER_NAME'] ?? 'localhost';
$mailImapPort = $config['MAIL_IMAP_PORT'] ?? '993';
$mailSmtpPort = $config['MAIL_SMTP_PORT'] ?? '587';
$mailImapSsl = isset($config['MAIL_IMAP_SSL']) && in_array(strtolower($config['MAIL_IMAP_SSL']), ['1', 'true', 'yes'], true); // is this a shit way to handle this ? yes very much so, does it make it more foolproof ? also yes
$mailSmtpSsl = isset($config['MAIL_SMTP_SSL']) && in_array(strtolower($config['MAIL_SMTP_SSL']), ['1', 'true', 'yes'], true);
$mailImapProtocol = $config['MAIL_IMAP_PROTOCOL'] ?? 'IMAP';
$mailSmtpProtocol = $config['MAIL_SMTP_PROTOCOL'] ?? 'SMTP';

// our super duper shit captcha that can be bypassed in seconds
if (!isset($_SESSION['captcha']) || empty($_SESSION['captcha'])) {
    $_SESSION['captcha'] = rand(1000, 9999);
}

// i dont know if my code breaks without debuging enabled yet :harold:.exe
function debugLog($text, $debug, $file) {
    if (!$debug) return;
    $entry = "[" . date("Y-m-d H:i:s") . "] " . $text . "\n";
    file_put_contents($file, $entry, FILE_APPEND);
}

function isEmailAllowed($email, $allowedDomains) {
    $parts = explode('@', $email);
    if (count($parts) !== 2) return false;
    return in_array($parts[1], $allowedDomains);
}

function sendCommandToAuthInjector($command, $debug, $file) {
    global $commandPort;
    
    debugLog("Sending command to auth-injector: " . json_encode($command), $debug, $file);
    
    $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
    if ($socket === false) {
        debugLog("socket_create() failed: " . socket_strerror(socket_last_error()), $debug, $file);
        return ['success' => false, 'error' => "Failed to create socket"];
    }
    
    $result = socket_connect($socket, 'localhost', $commandPort);
    if ($result === false) {
        debugLog("socket_connect() failed: " . socket_strerror(socket_last_error($socket)), $debug, $file);
        socket_close($socket);
        return ['success' => false, 'error' => "Failed to connect to auth-injector"];
    }
    
    $data = json_encode($command);
    socket_write($socket, $data, strlen($data));
    
    $response = socket_read($socket, 4096);
    socket_close($socket);
    
    $response = json_decode($response, true);
    debugLog("Received response from auth-injector: " . json_encode($response), $debug, $file);
    
    return $response;
}

function getAuthURL($logFile, $email) {
    global $debugWeb, $debugLogFile;
    
    if (!file_exists($logFile)) {
        debugLog("Log file not found: $logFile", $debugWeb, $debugLogFile);
        return null;
    }
    
    debugLog("Searching for auth URL in $logFile for email $email", $debugWeb, $debugLogFile);
    $lines = array_reverse(file($logFile));
    
    foreach ($lines as $line) {
        if (strpos($line, "Please visit the following URL") !== false) {
            debugLog("Found 'Please visit' line: $line", $debugWeb, $debugLogFile);
            
            if (strpos($line, $email) !== false) {
                preg_match('/https:\/\/login\\.microsoftonline\\.com\\/[^ ]+/', $line, $matches);
                $url = $matches[0] ?? null;
                debugLog("Extracted URL: $url", $debugWeb, $debugLogFile);
                return $url;
            }
        }
    }
    
    debugLog("No auth URL found for $email after checking " . count($lines) . " lines", $debugWeb, $debugLogFile);
    return null;
}

// add "temporary" debug function for session ... 
function debugSession($message) {
    file_put_contents('/tmp/session_debug.log', 
        date('Y-m-d H:i:s') . " - " . $message . ": " . 
        json_encode($_SESSION) . "\n", 
        FILE_APPEND);
}

// more debug functions for IMAP
function debugImap($message, $debug = true, $debugFile = null) {
    if (!$debug) return;
    $timestamp = date('Y-m-d H:i:s');
    $logMessage = "[$timestamp] [IMAP] $message\n";
    file_put_contents($debugFile ?? '/tmp/imap-debug.log', $logMessage, FILE_APPEND);
    error_log($logMessage); // Also log to PHP error log
}

// part of the user checking yk
function userExistsInConfig($configPath, $email) {
    if (!file_exists($configPath)) return false;
    $content = file_get_contents($configPath);
    return strpos($content, "[$email]") !== false;
}

function verifyUserPassword($email, $password) {
    global $debugWeb, $debugLogFile;
    
    // imagine using the correct port
    $imapPort = getMainImapPort();
    if (!$imapPort) {
        debugLog("Could not determine IMAP port", $debugWeb, $debugLogFile);
        return false;
    }
    
    debugLog("Attempting to verify password for $email using IMAP port $imapPort", $debugWeb, $debugLogFile);
    
    // try and connect, if it fails, it fails lol
    $fp = @fsockopen('127.0.0.1', $imapPort, $errno, $errstr, 5);
    if (!$fp) {
        debugLog("Could not connect to IMAP server: $errstr ($errno)", $debugWeb, $debugLogFile);
        return false;
    }
    
    // we need timeout, python isnt that fast
    stream_set_timeout($fp, 10);
    
    // get le hello from das server
    $greeting = fgets($fp, 1024);
    debugLog("IMAP greeting: $greeting", $debugWeb, $debugLogFile);
    
    // check if its a valid greeting and not an insulting one lol
    if (!$greeting || strpos($greeting, '* OK') === false) {
        debugLog("Invalid IMAP greeting, closing connection", $debugWeb, $debugLogFile);
        fclose($fp);
        return false;
    }
    
    // totally untested function to escape the email and password custom characters
    $safeEmail = str_replace(array('\\', '"'), array('\\\\', '\\"'), $email);
    $safePassword = str_replace(array('\\', '"'), array('\\\\', '\\"'), $password);
    
    // send the login command obviously
    $loginCommand = "a001 LOGIN \"$safeEmail\" \"$safePassword\"\r\n";
    debugLog("Sending login command...", $debugWeb, $debugLogFile);
    fwrite($fp, $loginCommand);
    
    // wait for python to piss its pants and respond
    $response = '';
    $timeout = time() + 10; // 10 seconds for pissing time
    
    while (!feof($fp) && time() < $timeout) {
        $line = fgets($fp, 1024);
        if (!$line) break;
        
        $response .= $line;
        debugLog("IMAP response line: " . trim($line), $debugWeb, $debugLogFile);
        
        // is ok? then good
        if (strpos($line, 'a001 OK') === 0) {
            fwrite($fp, "a002 LOGOUT\r\n");
            fclose($fp);
            debugLog("Authentication succeeded", $debugWeb, $debugLogFile);
            return true;
        }
        // is no? then bad
        if (strpos($line, 'a001 NO') === 0 || strpos($line, 'a001 BAD') === 0) {
            fclose($fp);
            debugLog("Authentication failed: " . trim($line), $debugWeb, $debugLogFile);
            return false;
        }
    }
    
    // if we here then we failed and we should go and cry
    fclose($fp);
    debugLog("Authentication timed out or had other issue", $debugWeb, $debugLogFile);
    return false;
}

function getMainImapPort() {
    global $configPath;
    
    if (!file_exists($configPath)) {
        return null;
    }
    
    $content = file_get_contents($configPath);
    if (preg_match('/\[IMAP-(\d+)\]/', $content, $matches)) {
        return (int)$matches[1];
    }
    
    return null;
}

function removeUserFromConfig($configPath, $email) {
    if (!file_exists($configPath)) return false;
    
    $content = file_get_contents($configPath);
    
    // danger zone ahead we are using regex to remove the user from the config in a terrible way
    $pattern = '/\[' . preg_quote($email, '/') . '\].*?(?=\n\[|\Z)/s';
    $contentAfterRemoval = preg_replace($pattern, '', $content);
    
    // i have ocd
    $contentAfterRemoval = preg_replace("/\n\n\n+/", "\n\n", $contentAfterRemoval);
    
    // update prem file
    return file_put_contents($configPath, $contentAfterRemoval) !== false;
}

// state ? AMERICA !!! RAHHHHHH 
$step = $_SESSION['step'] ?? 1;
$authUrl = '';
$email = $_SESSION['email'] ?? '';
$success = '';
$error = '';

// mmmm posting
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // check if the token is valid if is not it has no rights
    $valid_token = false;
    
    if (isset($_POST['form_token']) && isset($_SESSION['form_token']) && 
        $_POST['form_token'] === $_SESSION['form_token']) {
        $valid_token = true;
    } 
    // i wont even pretend i know what this does
    elseif (isset($_POST['form_token']) && isset($_SESSION['previous_form_token']) && 
        $_POST['form_token'] === $_SESSION['previous_form_token']) {
        $valid_token = true;
        // stolen code yay !!! 
        unset($_SESSION['previous_form_token']);
    }
    
    if (!$valid_token) {
        // le user has pressed refresh and submiteed the form again most likely so uhm nuh uh
        $error = "Form submission error. Please try again.";
    } else {
        // MORE STOLEN CODE !!! YIPPIE
        $_SESSION['form_token'] = bin2hex(random_bytes(32));
        
        if ($step === 1 && isset($_POST['captcha'])) {
            debugSession("Before CAPTCHA validation");
            // Step nummero eins: nutzloses gschiss catptcha
            $captcha = trim($_POST['captcha']);
            if ($captcha !== (string)$_SESSION['captcha']) {
                $error = "Invalid CAPTCHA. Please try again.";
                // kei ahnig wiso mer ned üsih function benützed aber okay hets problem gfixxed
                $_SESSION['captcha'] = rand(1000, 9999);
            } else {
                // isch guet denn bye bye kaptcha damit "sicherheit und so"
                unset($_SESSION['captcha']);
                
                // ich verlühre mini hoffnig das das jemals sicher wird sih aber mer chans ja probiere (ich han depressioneh)
                $imapPort = 2993 + rand(1, 100);
                $smtpPort = 2465 + rand(1, 100);
                
                // session ID, isch so fürs authentifizierig dingens
                $sessionId = time() . '_' . rand(1000, 9999);
                
                // merken sonst wiso haben wir es gemacht ???
                $_SESSION['imapPort'] = $imapPort;
                $_SESSION['smtpPort'] = $smtpPort;
                $_SESSION['sessionId'] = $sessionId;
                
                // yk vlt bruchid mer zersch emol d'email adresse deswege mal zu steppo 2 gah
                $_SESSION['step'] = 2;
                $_SESSION['form_success'] = true;
                
                // save session and redirect to the same page ... to update the content kinda terribly
                session_write_close();
                header('Location: ' . $_SERVER['PHP_SELF']);
                exit;
            }
            debugSession("After CAPTCHA validation");
        } elseif ($step === 2 && isset($_POST['email']) && isset($_POST['password'])) {
            debugSession("Before email/password processing");
            // Schritt numbero due ... email und passwort ihtöggele
            $email = trim($_POST['email']);
            $password = trim($_POST['password']);
            
            if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
                $error = "Invalid email address.";
            } elseif (!isEmailAllowed($email, $allowedDomains)) {
                $error = "Email domain not allowed.";
            } else {
                // mmm mal güxle ob de user scho existiert im config
                if (userExistsInConfig($configPath, $email)) {
                    // sehr guet denn chömer mal gugge ob das passwort au stimmt
                    if (verifyUserPassword($email, $password)) {
                        // das isch save ned sicher aber yoa lets fucking go oder so
                        $_SESSION['added_email'] = $email;
                        $_SESSION['verified_password'] = $password; // mmm yes very secure password storage right here so you can steal it from the session :harold:
                        $_SESSION['step'] = 4; // go to SEX panel ... to show the user config page
                        
                        // redirect to the same page to update the content
                        session_write_close();
                        header('Location: ' . $_SERVER['PHP_SELF']);
                        exit;
                    } else {
                        // GOOD BYE MY NI... back to the lobby !!!
                        $error = "Incorrect password for existing account. If you're having trouble, contact " . 
                                 htmlspecialchars($config['SYSADMIN_EMAIL'] ?? 'your system administrator');
                    }
                } else {
                    // user existiert ned also lets go und mache das authentifizierig dingens zum ms nerve
                    $_SESSION['email'] = $email;
                    $imapPort = $_SESSION['imapPort'];
                    $smtpPort = $_SESSION['smtpPort'];
                    $sessionId = $_SESSION['sessionId'];
                    
                    // now launch emailproxy temp session (look at me so sekurity)
                    $command = [
                        'type' => 'new_user',
                        'email' => $email,
                        'imap_port' => $imapPort,
                        'smtp_port' => $smtpPort,
                        'session_id' => $sessionId
                    ];
                    
                    // note to self : following line has been fixed by an LLM (because i was lazy and i have no oversight of my code at this point its late and i want to sleep)
                    $response = sendCommandToAuthInjector($command, $debugWeb, $debugLogFile);

                    if (!$response['success']) {
                        $error = "Failed to start authentication process. Please try again.";
                    } else {
                        sleep(3); // more spaghetti timeouts to ensure my slow server can handle it
                        
                        // connect to the IMAP server and send creds (this fails sometimes but we ignore it)
                        $fp = fsockopen("127.0.0.1", $imapPort, $errno, $errstr, 5);
                        if (!$fp) {
                            $error = "Failed to connect to the temporary emailproxy (IMAP port $imapPort).";
                        } else {
                            // Send login command to IMAP
                            fwrite($fp, "a001 LOGIN $email $password\r\n");
                            sleep(5); // demonstration of ignoring it
                            fclose($fp);
                            
                            $maxAttempts = 10; // how many times we try to get the url before deciding le server is le fucked
                            $authUrl = null;
                            
                            for ($attempt = 1; $attempt <= $maxAttempts; $attempt++) {
                                $authUrl = getAuthURL($logPath, $email);
                                if ($authUrl) {
                                    break;
                                }
                                sleep(3); // more demonstration of ignoring the problem
                            }
                            
                            if ($authUrl) {
                                $_SESSION['authUrl'] = $authUrl;
                                $_SESSION['step'] = 3; // move to step numbero tres ... tres bien oder so wenn mer das url hend
                                $_SESSION['form_success'] = true;
                                
                                // Save session and redirect
                                session_write_close();
                                header('Location: ' . $_SERVER['PHP_SELF']);
                                exit;
                            } else {
                                $error = "Failed to retrieve the authentication URL. Please try again.";
                                debugLog("Authentication URL not found after $maxAttempts attempts", $debugWeb, $debugLogFile);
                            }
                        }
                    }
                }
            }
        } elseif ($step === 3 && isset($_POST['auth_redirect'])) {
            debugSession("Processing redirect URL");
            // number tres ... redirect url processing
            $authRedirect = trim($_POST['auth_redirect']);
            $email = $_SESSION['email'];
            $sessionId = $_SESSION['sessionId'];
            
            // send the redirect URL to the auth-injector (or by this point known as emailproxy-ui.py backend)
            $command = [
                'type' => 'redirect_url',
                'session_id' => $sessionId,
                'email' => $email,
                'redirect_url' => $authRedirect
            ];
            
            $response = sendCommandToAuthInjector($command, $debugWeb, $debugLogFile);
            
            if ($response['success']) {
                $command = [
                    'type' => 'merge_config',
                    'session_id' => $sessionId
                ];
                $mergeResponse = sendCommandToAuthInjector($command, $debugWeb, $debugLogFile);
                if ($mergeResponse['success']) {
                    // checking if the user exists in the config ... again ... because stupid
                    $is_existing = userExistsInConfig($configPath, $email);
                    
                    $_SESSION['added_email'] = $email;
                    $_SESSION['auth_success'] = true;
                    $_SESSION['form_success'] = true;
                    $_SESSION['is_existing_account'] = $is_existing; // attempt at trying to make it display a different message upon creating or editing an account but didnt work lol
                    $_SESSION['step'] = 4; // numbero quatro oder so
                    
                    // save sessino and redirect to the same page ... yk updates yap yap
                    session_write_close();
                    header('Location: ' . $_SERVER['PHP_SELF']);
                    exit;
                } else {
                    $error = "Failed to merge configuration. Please try again.";
                }
            } else {
                $error = "Authentication failed. The URL you provided may be invalid or the authentication timed out.";
                $command = [
                    'type' => 'cleanup',
                    'session_id' => $sessionId
                ];
                sendCommandToAuthInjector($command, $debugWeb, $debugLogFile);
            }
        } 
        // Idk what the following mystery is but its AI's spin on fixing and securing my user delete process
        // Add this after your existing POST handlers, before the closing } of the if ($_SERVER['REQUEST_METHOD'] === 'POST') block
        elseif (isset($_POST['remove_email']) && isset($_POST['confirm_password'])) {
            $email = trim($_POST['remove_email']);
            
            // uhm we uhm please actually want to delete an email and not accidentally match all config entries
            if (empty($email) && isset($_SESSION['email_for_removal'])) {
                $email = $_SESSION['email_for_removal'];
                unset($_SESSION['email_for_removal']);
            }
            
            $password = trim($_POST['confirm_password']);
            
            if (empty($email)) {
                $_SESSION['success_message'] = "Error: No email address specified for removal.";
            } else {
                // you very very sure the password is le correcto amigo ?
                if (verifyUserPassword($email, $password)) {
                    // tell the auth-injector to brutally cut out the user from running config
                    $command = [
                        'type' => 'remove_user',
                        'email' => $email
                    ];
                    
                    $response = sendCommandToAuthInjector($command, $debugWeb, $debugLogFile);
                    
                    if ($response['success']) {
                        $_SESSION['success_message'] = "Account $email has been successfully removed from the email proxy.";
                    } else {
                        $_SESSION['success_message'] = "Failed to remove account. Error: " . ($response['error'] ?? 'Unknown error');
                    }
                } else {
                    $_SESSION['success_message'] = "Password verification failed. If you need assistance, please contact " . 
                                 ($config['SYSADMIN_EMAIL'] ?? 'your system administrator');
                }
            }
            
            // redir to first page (maybe clear session ? idk yet)
            header('Location: ' . $_SERVER['PHP_SELF']);
            exit;
        }
    }
}
?>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Emailproxy Auth Panel</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
        }
        .error {
            color: red;
            font-weight: bold;
        }
        .success {
            color: green;
            font-weight: bold;
        }
        .form-group {
            margin-bottom: 15px;
        }
        label {
            display: block;
            margin-bottom: 5px;
        }
        input[type="text"],
        input[type="email"],
        input[type="password"] {
            width: 100%;
            padding: 8px;
            box-sizing: border-box;
        }
        button {
            padding: 10px 15px;
            background-color: #4CAF50;
            color: white;
            border: none;
            cursor: pointer;
        }
        button:hover {
            background-color: #45a049;
        }
        .auth-url {
            word-break: break-all;
            background-color: #f5f5f5;
            padding: 10px;
            border: 1px solid #ddd;
        }
        .success-container {
            max-width: 700px;
            margin: 0 auto;
        }

        .mail-settings {
            background-color: #f9f9f9;
            border: 1px solid #ddd;
            border-radius: 5px;
            padding: 20px;
            margin: 20px 0;
        }

        .settings-container {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .settings-box {
            flex: 1;
            min-width: 250px;
            padding: 10px;
            margin: 5px;
            background: white;
            border: 1px solid #eee;
            border-radius: 5px;
        }

        .settings-box h5 {
            margin-top: 0;
            color: #333;
            border-bottom: 1px solid #eee;
            padding-bottom: 10px;
        }

        .settings-box ul {
            list-style: none;
            padding-left: 0;
        }

        .settings-box li {
            margin-bottom: 8px;
        }

        .note {
            font-style: italic;
            color: #666;
            margin-top: 20px;
        }

        .button {
            display: inline-block;
            padding: 10px 15px;
            background-color: #4CAF50;
            color: white;
            text-decoration: none;
            border-radius: 4px;
            margin-top: 10px;
        }

        .button:hover {
            background-color: #45a049;
        }

        // Add this to your existing <style> section
        .actions-container {
            margin-top: 30px;
            border-top: 1px solid #eee;
            padding-top: 20px;
        }

        .remove-account {
            margin-top: 30px;
            padding: 15px;
            background-color: #fff4f4;
            border: 1px solid #ffdddd;
            border-radius: 5px;
        }

        .remove-account h4 {
            color: #cc0000;
            margin-top: 0;
        }

        .button.danger {
            background-color: #d9534f;
        }

        .button.danger:hover {
            background-color: #c9302c;
        }
    </style>
</head>
<body>
    <h2>OAutsch Sucks Authorization Panel</h2>
    <p>for people who hate 2FA, Microsoft and overcomplicated E-Mail.</p>
    <p>Made with love for PHP <br> and PURE RAGE AND HATRED FOR AZURE, TEAMS, EXCHANGE AND MICRO$SOFT <br> by UMTS at <a href="https://teleco.ch">teleco</a></p>
    <hr>

    <?php if ($error): ?>
        <p class="error"><?= htmlspecialchars($error) ?></p>
    <?php endif; ?>
    
    <?php if ($success): ?>
        <p class="success"><?= htmlspecialchars($success) ?></p>
    <?php endif; ?>
    
    <?php if ($step === 1): ?>
        <form method="POST">
            <div class="form-group">
                <label>CAPTCHA: <?= isset($_SESSION['captcha']) ? $_SESSION['captcha'] : rand(1000, 9999) ?></label>
                <input type="text" name="captcha" required placeholder="Enter the CAPTCHA code">
            </div>
            <input type="hidden" name="form_token" value="<?= $_SESSION['form_token'] ?>">
            <button type="submit">Start Authentication</button>
        </form>
    <?php elseif ($step === 2): ?>
        <form method="POST">
            <div class="form-group">
                <label>Email Address:</label>
                <input type="email" name="email" required placeholder="Enter your email address">
            </div>
            <div class="form-group">
                <label>Password:</label>
                <input type="password" name="password" required placeholder="Enter your password">
            </div>
            <input type="hidden" name="form_token" value="<?= $_SESSION['form_token'] ?>">
            <button type="submit">Submit</button>
        </form>
    <?php elseif ($step === 3): ?>
        <p><strong>Please visit the following URL to complete authentication:</strong></p>
        <div class="auth-url">
            <a href="<?= htmlspecialchars($_SESSION['authUrl']) ?>" target="_blank"><?= htmlspecialchars($_SESSION['authUrl']) ?></a>
        </div>
        <p>After completing the authentication process, you will be redirected to a page with a final URL. Copy that URL and paste it below:</p>
        
        <form method="POST">
            <div class="form-group">
                <label>Paste the redirected URL here:</label>
                <input type="text" name="auth_redirect" required placeholder="Paste the final URL here">
            </div>
            <input type="hidden" name="form_token" value="<?= $_SESSION['form_token'] ?>">
            <button type="submit">Complete Authentication</button>
        </form>
    <?php elseif ($step === 4): ?>
    <div class="success-container">
        <h3>Success!</h3>
        <p class="success">Your account <strong><?= htmlspecialchars($_SESSION['added_email'] ?? '') ?></strong> exists on the email proxy.</p>
        
        <div class="mail-settings">
            <h4>Mail Client Configuration</h4>
            
            <div class="settings-container">
                <div class="settings-box">
                    <h5>Incoming Mail Server (<?= htmlspecialchars($mailImapProtocol) ?>)</h5>
                    <ul>
                        <li><strong>Server:</strong> <?= htmlspecialchars($mailServerName) ?></li>
                        <li><strong>Port:</strong> <?= htmlspecialchars($mailImapPort) ?></li>
                        <li><strong>Security:</strong> <?= $mailImapSsl ? 'SSL/TLS' : 'None' ?></li>
                        <li><strong>Username:</strong> <?= htmlspecialchars($_SESSION['added_email'] ?? 'Your full email address') ?></li>
                        <li><strong>Authentication:</strong> Normal Password</li>
                    </ul>
                </div>
                
                <div class="settings-box">
                    <h5>Outgoing Mail Server (<?= htmlspecialchars($mailSmtpProtocol) ?>)</h5>
                    <ul>
                        <li><strong>Server:</strong> <?= htmlspecialchars($mailServerName) ?></li>
                        <li><strong>Port:</strong> <?= htmlspecialchars($mailSmtpPort) ?></li>
                        <li><strong>Security:</strong> <?= $mailSmtpSsl ? 'SSL/TLS' : 'None' ?></li>
                        <li><strong>Username:</strong> <?= htmlspecialchars($_SESSION['added_email'] ?? 'Your full email address') ?></li>
                        <li><strong>Authentication:</strong> Normal Password</li>
                    </ul>
                </div>
            </div>
            
            <p class="note">Use your defined password to sign into the proxy server (can differ from OAuth Providers account password).</p>
        </div>
        
        <div class="actions-container">
            <p><a href="<?= $_SERVER['PHP_SELF'] ?>" class="button">Add Another Account</a></p>
            
            <div class="remove-account">
                <h4>Remove Account</h4>
                <p>If you wish to remove this account from the email proxy, please confirm your password below.</p>
                
                <form method="POST" onsubmit="return confirm('Are you sure?')">
                    <div class="form-group">
                        <label>Confirm Password:</label>
                        <input type="password" name="confirm_password" required placeholder="Enter your password">
                    </div>
                    <input type="hidden" name="remove_email" value="<?= htmlspecialchars($_SESSION['added_email'] ?? '') ?>">
                    <?php $form_token = $_SESSION['form_token']; ?>
                    <input type="hidden" name="form_token" value="<?= $form_token ?>">
                    <button type="submit" class="button danger">Remove Account from Proxy</button>
                </form>
            </div>
        </div>
    </div>
    
    <?php
    $email_for_removal = $_SESSION['added_email'] ?? '';
    
    // Make new token before bye bye old one
    $new_token = bin2hex(random_bytes(32));
    
    // clean up le session after super premio success in hating ms
    $_SESSION = [];
    $_SESSION['captcha'] = rand(1000, 9999);
    $_SESSION['form_token'] = $new_token;
    // keep token for the next form just in case doe
    $_SESSION['previous_form_token'] = $form_token;
    $_SESSION['email_for_removal'] = $email_for_removal;
    $step = 1;
    ?>
<?php endif; ?>
</body>
</html>