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<?php
/**
 * browserleaks_test.php
 * Совместимо с PHP 7.0+ и PHP 8.x
 *
 * Проверяет наличие инструментов подмены TLS/HTTP2-отпечатка:
 *   - curl-impersonate (бинарь)       — работает в PHP 7 и 8
 *   - RNet (нативное расширение)       — только PHP 8.x
 *   - wreq-php (нативное расширение)   — только PHP 8.x
 *   - curl-cffi (FFI + libcurl-impersonate) — только PHP 8.1+
 *
 * Если инструмент найден — делает через него запрос к tls.browserleaks.com.
 * Если нет — сообщает, что не установлено.
 */

if (version_compare(PHP_VERSION, '7.0.0', '<')) {
    die("Требуется PHP >= 7.0\n");
}

error_reporting(E_ALL & ~E_DEPRECATED & ~E_NOTICE & ~E_WARNING);
ini_set('display_errors', '0');
ini_set('max_execution_time', '300');
ini_set('default_socket_timeout', '20');

$isCli     = (PHP_SAPI === 'cli');
$useColors = $isCli;
$isPhp8    = version_compare(PHP_VERSION, '8.0.0', '>=');

if (!$isCli) {
    header('Content-Type: text/html; charset=utf-8');
    echo '<!DOCTYPE html><html><head><meta charset="utf-8"><title>BrowserLeaks Test</title>';
    echo '<style>
        body{background:#1e1e1e;color:#d4d4d4;font-family:Consolas,Monaco,monospace;padding:20px;line-height:1.5}
        pre{background:#252526;border:1px solid #3c3c3c;padding:15px;border-radius:5px;overflow-x:auto;white-space:pre-wrap;word-break:break-all}
    </style></head><body><pre>';
}

/* ==================== ВЫВОД ==================== */
function c(string $text, ?string $color = null, bool $bold = false): string {
    global $useColors, $isCli;
    if ($isCli) {
        if (!$useColors) return $text;
        $map = ['red'=>31,'green'=>32,'yellow'=>33,'blue'=>34,
                'magenta'=>35,'cyan'=>36,'white'=>37,'gray'=>90];
        $code = $map[$color] ?? 0;
        $b = $bold ? '1;' : '';
        return "\033[{$b}{$code}m{$text}\033[0m";
    }
    $map = ['red'=>'#f48771','green'=>'#6a9955','yellow'=>'#dcdcaa','blue'=>'#569cd6',
            'magenta'=>'#c586c0','cyan'=>'#4ec9b0','white'=>'#d4d4d4','gray'=>'#808080'];
    $col = $map[$color] ?? '#d4d4d4';
    $weight = $bold ? 'bold' : 'normal';
    return '<span style="color:'.$col.';font-weight:'.$weight.'">'
         . htmlspecialchars($text, ENT_QUOTES, 'UTF-8') . '</span>';
}
function line(string $char = '-', int $len = 100, ?string $color = 'gray'): void {
    echo c(str_repeat($char, $len), $color) . "\n";
}
function header_(string $title, string $ch = '=', int $len = 100): void {
    line($ch, $len, 'cyan');
    echo c('  ' . $title, 'cyan', true) . "\n";
    line($ch, $len, 'cyan');
}
function subheader_(string $title, int $len = 100): void {
    line('-', $len, 'blue');
    echo c('  ' . $title, 'blue', true) . "\n";
    line('-', $len, 'blue');
}
function fmt($v): string {
    global $isCli;
    if (is_array($v)) {
        $v = json_encode($v, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
    }
    $v = (string)$v;
    return $isCli ? $v : htmlspecialchars($v, ENT_QUOTES, 'UTF-8');
}

/* ==================== ПРОВЕРКА ИНСТРУМЕНТОВ ==================== */
/**
 * @return array  [ 'name' => ['available' => bool, 'path' => ?string, 'note' => ?string] ]
 */
function detectFingerprintTools(): array {
    $tools = [];

    // 1) curl-impersonate — бинарник (работает в PHP 7 и 8)
    $ciPath = null;
    $out = []; $rc = 1;
    @exec('command -v curl-impersonate 2>/dev/null', $out, $rc);
    if ($rc === 0 && !empty($out)) $ciPath = trim($out[0]);
    if ($ciPath === null) {
        $out = []; $rc = 1;
        @exec('where curl-impersonate 2>NUL', $out, $rc);
        if ($rc === 0 && !empty($out)) $ciPath = trim($out[0]);
    }
    $tools['curl-impersonate (binary)'] = [
        'available' => $ciPath !== null,
        'path'      => $ciPath,
        'note'      => 'PHP 7/8 — full TLS+HTTP2 impersonation via CLI',
    ];

    // 2) RNet — нативное расширение (PHP 8.x)
    $tools['RNet (extension)'] = [
        'available' => extension_loaded('rnet'),
        'path'      => null,
        'note'      => 'PHP 8.x only — browser TLS/JA3/HTTP2 fingerprints',
    ];

    // 3) wreq-php — нативное расширение (PHP 8.x)
    $tools['wreq-php (extension)'] = [
        'available' => extension_loaded('wreq'),
        'path'      => null,
        'note'      => 'PHP 8.x only — 100+ browser profiles',
    ];

    // 4) curl-cffi — FFI + libcurl-impersonate (PHP 8.1+)
    $ffiOk = extension_loaded('ffi');
    $cffiLib = null;
    if ($ffiOk) {
        $cffiLib = getenv('CURL_CFFI_LIB_PATH') ?: null;
    }
    $tools['curl-cffi (FFI)'] = [
        'available' => $ffiOk,
        'path'      => $cffiLib,
        'note'      => 'PHP 8.1+ — needs FFI + libcurl-impersonate',
    ];

    return $tools;
}

/* ==================== HTTP/1.1 ЧЕРЕЗ СОКЕТ ==================== */
function socketFetchHttp1(string $url, array $options = []): array {
    $p = parse_url($url);
    if (!$p || empty($p['host'])) throw new RuntimeException('Некорректный URL: ' . $url);

    $scheme  = $p['scheme'] ?? 'https';
    $host    = $p['host'];
    $port    = isset($p['port']) ? (int)$p['port'] : ($scheme === 'https' ? 443 : 80);
    $path    = ($p['path'] ?? '/') . (isset($p['query']) ? '?' . $p['query'] : '');
    $isHttps = ($scheme === 'https');
    $timeout = (int)($options['timeout'] ?? 20);
    $method  = strtoupper($options['method'] ?? 'GET');
    $body    = (string)($options['body'] ?? '');

    $headers = $options['headers'] ?? [];
    $headers = array_merge(['Host' => $host, 'Connection' => 'close'], $headers);
    if ($method === 'POST') {
        $headers['Content-Type']   = $headers['Content-Type']   ?? 'application/x-www-form-urlencoded';
        $headers['Content-Length'] = strlen($body);
    }

    $req = "$method $path HTTP/1.1\r\n";
    foreach ($headers as $k => $v) $req .= "$k: $v\r\n";
    $req .= "\r\n";
    if ($method === 'POST' && $body !== '') $req .= $body;

    $errno = 0; $errstr = '';
    $ctx = stream_context_create(['ssl' => [
        'verify_peer'      => true,
        'verify_peer_name' => true,
        'SNI_enabled'      => true,
        'peer_name'        => $host,
        'alpn_protocols'   => 'http/1.1',
    ]]);

    $remote = ($isHttps ? 'ssl://' : 'tcp://') . $host . ':' . $port;
    $fp = @stream_socket_client($remote, $errno, $errstr, $timeout, STREAM_CLIENT_CONNECT, $ctx);
    if (!$fp) throw new RuntimeException("Не удалось подключиться к $remote: [$errno] $errstr");
    stream_set_timeout($fp, $timeout);
    stream_set_blocking($fp, true);

    if (@fwrite($fp, $req) === false) {
        fclose($fp);
        throw new RuntimeException('fwrite failed');
    }

    $rawHead = '';
    while (!feof($fp)) {
        $l = fgets($fp, 8192);
        if ($l === false) break;
        $rawHead .= $l;
        if ($l === "\r\n" || $l === "\n") break;
    }
    if ($rawHead === '') {
        $meta = stream_get_meta_data($fp); fclose($fp);
        throw new RuntimeException(!empty($meta['timed_out'])
            ? 'таймаут при чтении заголовков'
            : 'соединение закрыто до получения ответа');
    }
    $hl = preg_split("/\r\n|\n/", trim($rawHead));
    $statusLine = array_shift($hl);
    if (!preg_match('#^HTTP/\d\.\d\s+(\d+)#', $statusLine, $m)) {
        fclose($fp); throw new RuntimeException('Некорректная статус-строка: ' . $statusLine);
    }
    $status = (int)$m[1];

    $parsed = []; $setCookies = [];
    foreach ($hl as $l) {
        if ($l === '') continue;
        $pos = strpos($l, ':');
        if ($pos === false) continue;
        $n = strtolower(trim(substr($l, 0, $pos)));
        $v = trim(substr($l, $pos + 1));
        if ($n === 'set-cookie') { $setCookies[] = $v; continue; }
        $parsed[$n] = isset($parsed[$n]) ? $parsed[$n] . ', ' . $v : $v;
    }

    $rawBody = '';
    $isChunked = isset($parsed['transfer-encoding'])
        && stripos($parsed['transfer-encoding'], 'chunked') !== false;

    if ($isChunked) {
        while (!feof($fp)) {
            $chunk = fread($fp, 8192);
            if ($chunk === false || $chunk === '') {
                $info = stream_get_meta_data($fp);
                if (!empty($info['timed_out']) || !empty($info['eof'])) break;
                continue;
            }
            $rawBody .= $chunk;
            if (strpos($rawBody, "\r\n0\r\n\r\n") !== false
             || strpos($rawBody, "\r\n0\r\n")    !== false) break;
        }
    } elseif (isset($parsed['content-length'])) {
        $need = (int)$parsed['content-length'];
        while (strlen($rawBody) < $need && !feof($fp)) {
            $chunk = fread($fp, min(8192, $need - strlen($rawBody)));
            if ($chunk === false || $chunk === '') {
                $info = stream_get_meta_data($fp);
                if (!empty($info['timed_out'])) break;
                continue;
            }
            $rawBody .= $chunk;
        }
    } else {
        while (!feof($fp)) {
            $chunk = fread($fp, 8192);
            if ($chunk === false || $chunk === '') {
                $info = stream_get_meta_data($fp);
                if (!empty($info['timed_out']) || !empty($info['eof'])) break;
                continue;
            }
            $rawBody .= $chunk;
        }
    }
    fclose($fp);

    if ($isChunked) $rawBody = decodeChunked($rawBody);
    if (isset($parsed['content-encoding'])) {
        $rawBody = decompressBody($rawBody, $parsed['content-encoding']);
    }

    return [
        'status'      => $status,
        'headers'     => $parsed,
        'set_cookies' => $setCookies,
        'body'        => $rawBody,
        'raw'         => $rawHead . "\r\n" . $rawBody,
    ];
}

/* ==================== ВСПОМОГАТЕЛЬНЫЕ ==================== */
function decodeChunked(string $data): string {
    $out = ''; $pos = 0; $len = strlen($data);
    while ($pos < $len) {
        $e = strpos($data, "\r\n", $pos);
        if ($e === false) break;
        $hex = trim(substr($data, $pos, $e - $pos));
        $s = strpos($hex, ';');
        if ($s !== false) $hex = substr($hex, 0, $s);
        if ($hex === '' || !ctype_xdigit($hex)) break;
        $size = hexdec($hex);
        $pos = $e + 2;
        if ($size === 0) break;
        if ($pos + $size > $len) { $out .= substr($data, $pos); break; }
        $out .= substr($data, $pos, $size);
        $pos += $size + 2;
    }
    return $out;
}
function decompressBody(string $body, string $encodingHeader): string {
    if ($encodingHeader === '') return $body;
    $list = array_map('trim', explode(',', strtolower($encodingHeader)));
    foreach (array_reverse($list) as $e) {
        if ($e === 'gzip' || $e === 'x-gzip') {
            $d = @gzdecode($body);
            if ($d !== false) $body = $d;
        } elseif ($e === 'deflate') {
            $d = @gzinflate($body);
            if ($d === false) $d = @gzuncompress($body);
            if ($d !== false) $body = $d;
        } elseif ($e === 'br') {
            if (function_exists('brotli_uncompress')) {
                $d = @brotli_uncompress($body);
                if ($d !== false) $body = $d;
            }
        }
    }
    return $body;
}

/* ==================== ЗАПРОСЫ ==================== */
$url = 'https://tls.browserleaks.com/json';
$results = [];

header_('ТЕСТИРОВАНИЕ ЗАПРОСОВ К ' . $url);
echo "\n";
echo c('  PHP версия: ', 'gray') . PHP_VERSION
   . ' (' . (PHP_INT_SIZE === 8 ? '64-bit' : '32-bit') . ")\n";
echo c('  cURL: ', 'gray')     . (function_exists('curl_init') ? c('доступен','green') : c('НЕДОСТУПЕН','red')) . "\n";
echo c('  OpenSSL: ', 'gray')  . (extension_loaded('openssl')  ? c('доступен','green') : c('НЕДОСТУПЕН','red')) . "\n";
echo c('  FFI: ', 'gray')      . (extension_loaded('ffi')      ? c('доступен','green') : c('нет','yellow')) . "\n";
echo "\n";

/* --- 1. file_get_contents --- */
echo c('  [1/7] ', 'yellow', true) . "file_get_contents...\n";
try {
    $ctx = stream_context_create([
        'http' => [
            'method'        => 'GET',
            'header'        => "User-Agent: PHP-file_get_contents-test\r\nAccept: application/json\r\n",
            'timeout'       => 20,
            'ignore_errors' => true,
        ],
        'ssl' => ['verify_peer' => true, 'verify_peer_name' => true],
    ]);
    $fgc = @file_get_contents($url, false, $ctx);
    if ($fgc !== false && $fgc !== '') {
        $decoded = json_decode($fgc, true);
        $results['file_get_contents'] = [
            'success' => $decoded !== null,
            'data'    => $decoded,
            'raw'     => $fgc,
            'error'   => $decoded === null ? 'Не удалось разобрать JSON' : null,
        ];
    } else {
        $err = error_get_last();
        $results['file_get_contents'] = [
            'success' => false,
            'error'   => $err['message'] ?? 'Пустой ответ',
        ];
    }
} catch (Throwable $e) {
    $results['file_get_contents'] = ['success' => false, 'error' => $e->getMessage()];
}

/* --- 2. cURL --- */
echo c('  [2/7] ', 'yellow', true) . "cURL...\n";
if (function_exists('curl_init')) {
    try {
        $ch = curl_init();
        curl_setopt_array($ch, [
            CURLOPT_URL            => $url,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_TIMEOUT        => 20,
            CURLOPT_CONNECTTIMEOUT => 10,
            CURLOPT_FOLLOWLOCATION => true,
            CURLOPT_HTTPHEADER     => [
                'User-Agent: PHP-cURL-test',
                'Accept: application/json',
            ],
        ]);
        $curlResp = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $curlErr  = curl_error($ch);
        curl_close($ch);

        if ($curlResp !== false && $httpCode == 200) {
            $decoded = json_decode($curlResp, true);
            $results['curl'] = [
                'success'   => $decoded !== null,
                'data'      => $decoded,
                'raw'       => $curlResp,
                'http_code' => $httpCode,
                'error'     => $decoded === null ? 'Не удалось разобрать JSON' : null,
            ];
        } else {
            $results['curl'] = [
                'success'   => false,
                'error'     => $curlErr ?: ('HTTP ' . $httpCode),
                'http_code' => $httpCode,
            ];
        }
    } catch (Throwable $e) {
        $results['curl'] = ['success' => false, 'error' => $e->getMessage()];
    }
} else {
    $results['curl'] = ['success' => false, 'error' => 'Расширение cURL не установлено'];
}

/* --- 3. Socket HTTP/1.1 --- */
echo c('  [3/7] ', 'yellow', true) . "Socket HTTP/1.1...\n";
try {
    $r = socketFetchHttp1($url, [
        'timeout' => 20,
        'headers' => [
            'User-Agent'      => 'PHP-socket-test',
            'Accept'          => 'application/json',
            'Accept-Encoding' => 'gzip, deflate',
        ],
    ]);
    $decoded = json_decode($r['body'], true);
    $results['socket'] = [
        'success' => $decoded !== null,
        'data'    => $decoded,
        'raw'     => $r['raw'],
        'status'  => $r['status'],
        'error'   => $decoded === null
            ? 'HTTP ' . $r['status'] . ': ' . substr($r['body'], 0, 300) : null,
    ];
} catch (Throwable $e) {
    $results['socket'] = ['success' => false, 'error' => $e->getMessage()];
}

/* ==================== ПРОВЕРКА ИНСТРУМЕНТОВ ПОДМЕНЫ ==================== */
echo "\n";
header_('ИНСТРУМЕНТЫ ПОДМЕНЫ TLS/HTTP2-ОТПЕЧАТКА');
echo "\n";

$tools = detectFingerprintTools();
foreach ($tools as $name => $t) {
    if ($t['available']) {
        echo '  ' . c('✓', 'green', true) . '  ' . c($name, 'white', true)
           . c('  — ДОСТУПЕН', 'green')
           . ($t['path'] ? c(' (' . $t['path'] . ')', 'gray') : '')
           . "\n";
        echo '       ' . c($t['note'], 'gray') . "\n";
    } else {
        echo '  ' . c('✗', 'red', true) . '  ' . c($name, 'white')
           . c('  — НЕ УСТАНОВЛЕН', 'yellow') . "\n";
        echo '       ' . c($t['note'], 'gray') . "\n";
    }
}

/* ==================== ЗАПРОСЫ ЧЕРЕЗ ИНСТРУМЕНТЫ ПОДМЕНЫ ==================== */

/* --- 4. curl-impersonate (бинарь) --- */
echo "\n";
if ($tools['curl-impersonate (binary)']['available']) {
    echo c('  [4/7] ', 'yellow', true) . "curl-impersonate (Chrome 131)...\n";
    $ciPath = $tools['curl-impersonate (binary)']['path'];
    try {
        $cmd = escapeshellarg($ciPath)
             . ' -s --impersonate chrome131 '
             . escapeshellarg($url);
        $json = @shell_exec($cmd);
        if ($json !== null && $json !== '') {
            $decoded = json_decode($json, true);
            $results['curl_impersonate'] = [
                'success' => $decoded !== null,
                'data'    => $decoded,
                'raw'     => $json,
                'error'   => $decoded === null ? 'Не удалось разобрать JSON' : null,
            ];
        } else {
            $results['curl_impersonate'] = [
                'success' => false,
                'error'   => 'curl-impersonate вернул пустой ответ',
            ];
        }
    } catch (Throwable $e) {
        $results['curl_impersonate'] = ['success' => false, 'error' => $e->getMessage()];
    }
} else {
    echo c('  [4/7] ', 'yellow', true) . "curl-impersonate...\n";
    echo '  ' . c('НЕ УСТАНОВЛЕН', 'yellow', true)
       . c(' (бинарник curl-impersonate не найден в PATH)', 'gray') . "\n";
    $results['curl_impersonate'] = ['success' => false, 'error' => 'curl-impersonate не установлен'];
}

/* --- 5. RNet (расширение PHP 8.x) --- */
echo "\n";
if ($tools['RNet (extension)']['available']) {
    echo c('  [5/7] ', 'yellow', true) . "RNet (Chrome 136)...\n";
    try {
        // RNet работает через классы: RNet\ClientBuilder, RNet\Emulation
        if (class_exists('RNet\ClientBuilder')) {
            $b = new \RNet\ClientBuilder();
            $b->impersonate(\RNet\Emulation::CHROME_136);
            $client = $b->build();
            $resp = $client->get($url);
            $body = (string)$resp->getBody();
            $decoded = json_decode($body, true);
            $results['rnet'] = [
                'success' => $decoded !== null,
                'data'    => $decoded,
                'raw'     => $body,
                'error'   => $decoded === null ? 'Не удалось разобрать JSON' : null,
            ];
        } else {
            $results['rnet'] = [
                'success' => false,
                'error'   => 'Расширение rnet загружено, но класс RNet\ClientBuilder не найден',
            ];
        }
    } catch (Throwable $e) {
        $results['rnet'] = ['success' => false, 'error' => $e->getMessage()];
    }
} else {
    echo c('  [5/7] ', 'yellow', true) . "RNet...\n";
    echo '  ' . c('НЕ УСТАНОВЛЕН', 'yellow', true)
       . c(' (расширение rnet не загружено; требуется PHP 8.x)', 'gray') . "\n";
    $results['rnet'] = ['success' => false, 'error' => 'RNet не установлен'];
}

/* --- 6. wreq-php (расширение PHP 8.x) --- */
echo "\n";
if ($tools['wreq-php (extension)']['available']) {
    echo c('  [6/7] ', 'yellow', true) . "wreq-php...\n";
    try {
        if (class_exists('Wreq\Client')) {
            $client = new \Wreq\Client(['emulation' => 'chrome_131']);
            $resp = $client->get($url);
            $body = (string)$resp->getBody();
            $decoded = json_decode($body, true);
            $results['wreq'] = [
                'success' => $decoded !== null,
                'data'    => $decoded,
                'raw'     => $body,
                'error'   => $decoded === null ? 'Не удалось разобрать JSON' : null,
            ];
        } else {
            $results['wreq'] = [
                'success' => false,
                'error'   => 'Расширение wreq загружено, но класс Wreq\Client не найден',
            ];
        }
    } catch (Throwable $e) {
        $results['wreq'] = ['success' => false, 'error' => $e->getMessage()];
    }
} else {
    echo c('  [6/7] ', 'yellow', true) . "wreq-php...\n";
    echo '  ' . c('НЕ УСТАНОВЛЕН', 'yellow', true)
       . c(' (расширение wreq не загружено; требуется PHP 8.x)', 'gray') . "\n";
    $results['wreq'] = ['success' => false, 'error' => 'wreq-php не установлен'];
}

/* --- 7. curl-cffi (FFI, PHP 8.1+) --- */
echo "\n";
if ($tools['curl-cffi (FFI)']['available']) {
    echo c('  [7/7] ', 'yellow', true) . "curl-cffi (FFI)...\n";
    if (class_exists('CurlCffi\Requests')) {
        try {
            $resp = \CurlCffi\Requests::get($url, ['impersonate' => 'chrome110']);
            $body = $resp->getText();
            $decoded = json_decode($body, true);
            $results['curl_cffi'] = [
                'success' => $decoded !== null,
                'data'    => $decoded,
                'raw'     => $body,
                'error'   => $decoded === null ? 'Не удалось разобрать JSON' : null,
            ];
        } catch (Throwable $e) {
            $results['curl_cffi'] = ['success' => false, 'error' => $e->getMessage()];
        }
    } else {
        $results['curl_cffi'] = [
            'success' => false,
            'error'   => 'FFI доступен, но библиотека curl-cffi не установлена '
                       . '(composer require farhaanaliii/curl-cffi)',
        ];
    }
} else {
    echo c('  [7/7] ', 'yellow', true) . "curl-cffi (FFI)...\n";
    echo '  ' . c('НЕ УСТАНОВЛЕН', 'yellow', true)
       . c(' (FFI отключён или PHP < 8.1)', 'gray') . "\n";
    $results['curl_cffi'] = ['success' => false, 'error' => 'curl-cffi не установлен'];
}

/* ==================== СТАТУС ==================== */
echo "\n";
header_('СТАТУС ВЫПОЛНЕНИЯ');
echo "\n";

$successful = [];
$labels = [
    'file_get_contents' => 'file_get_contents',
    'curl'              => 'cURL',
    'socket'            => 'Socket HTTP/1.1',
    'curl_impersonate'  => 'curl-impersonate',
    'rnet'              => 'RNet (PHP 8)',
    'wreq'              => 'wreq-php (PHP 8)',
    'curl_cffi'         => 'curl-cffi (PHP 8.1+)',
];

foreach ($results as $m => $r) {
    $lbl = $labels[$m] ?? $m;
    if (!empty($r['success'])) {
        $successful[$m] = $r['data'];
        printf("  %s  %-24s %s\n",
            c('OK', 'green', true), c($lbl, 'white'), c('УСПЕШНО', 'green', true));
    } else {
        $err = $r['error'] ?? 'unknown';
        if (strpos($err, 'не установлен') !== false || strpos($err, 'НЕ УСТАНОВЛЕН') !== false
            || strpos($err, 'не загружено') !== false) {
            printf("  %s  %-24s %s\n",
                c('--', 'yellow', true), c($lbl, 'white'), c('НЕ УСТАНОВЛЕН', 'yellow'));
        } else {
            printf("  %s  %-24s %s %s\n",
                c('FAIL', 'red', true), c($lbl, 'white'),
                c('ОШИБКА', 'red', true),
                c('(' . $err . ')', 'gray'));
        }
    }
}

if (empty($successful)) {
    echo "\n" . c('  Ни один запрос не удался.', 'red', true) . "\n";
    if (!$isCli) echo '</pre></body></html>';
    exit(1);
}

/* ==================== СРАВНЕНИЕ ОТПЕЧАТКОВ ==================== */
echo "\n";
header_('СРАВНЕНИЕ ОТПЕЧАТКОВ');
echo "\n";

// Сравниваем только те, что вернули данные
$compareFields = [
    'user_agent'  => 'User-Agent',
    'ja4'         => 'JA4',
    'ja4_o'       => 'JA4_o (original)',
    'ja3_hash'    => 'JA3 Hash',
    'akamai_hash' => 'Akamai Hash',
];

foreach ($compareFields as $field => $label) {
    $values = [];
    foreach ($successful as $m => $data) {
        $v = $data[$field] ?? ($data['tls'][$field] ?? null);
        if ($v !== null) $values[$m] = $v;
    }
    if (empty($values)) continue;

    $unique = array_unique($values);
    $isSame = count($unique) === 1;

    echo c('  ' . $label, 'cyan', true)
       . c($isSame ? '  [одинаково у всех]' : '  [различается]', $isSame ? 'green' : 'yellow') . "\n";
    foreach ($values as $m => $v) {
        echo '    ' . c(str_pad($labels[$m] ?? $m, 24), 'gray') . ' = ' . fmt($v) . "\n";
    }
    echo "\n";
}

/* ==================== СОХРАНЕНИЕ ==================== */
echo "\n";
header_('СОХРАНЕНИЕ');
echo "\n";
$rawFile = __DIR__ . '/browserleaks_raw_responses.json';
$saved = @file_put_contents(
    $rawFile,
    json_encode($results, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES)
);
if ($saved !== false) {
    echo '  Файл сохранён: ' . c($rawFile, 'yellow', true) . "\n";
    echo '  Размер: ' . c(filesize($rawFile) . ' байт', 'yellow') . "\n";
} else {
    echo c('  Не удалось сохранить файл (нет прав).', 'red') . "\n";
}

echo "\n";
line('=', 100, 'cyan');
echo c('  АНАЛИЗ ЗАВЕРШЁН', 'green', true) . "\n";
line('=', 100, 'cyan');

if (!$isCli) echo '</pre></body></html>';

<?php
/**
 * browserleaks_test.php
 *
 * Совместимо с PHP 5.4+ (проверено синтаксически). Работает также на 5.5, 5.6, 7.x, 8.x.
 *
 * Что делает:
 *   - 5 способов запроса к https://tls.browserleaks.com/:
 *       1) file_get_contents
 *       2) cURL
 *       3) Socket HTTP/1.1 (UA: PHP-socket-test)
 *       4) Socket HTTP/1.1 (UA Chrome + все Chrome-заголовки)
 *       5) Socket HTTP/2  (UA Chrome + HPACK + ALPN h2)   — только PHP >= 5.6, 64-bit
 *   - Красивый вывод (CLI + HTML)
 *   - Без обрезки значений
 *
 * Ограничения PHP 5.4:
 *   - Нет ALPN → HTTP/2 недоступен (вариант 5 отключится сам)
 *   - Нет brotli_uncompress → br не запрашиваем, если нет CLI-бинаря brotli
 *   - TLS 1.2 в stream_socket_client может быть недоступен → HTTPS-сокет может не подключиться
 */

if (version_compare(PHP_VERSION, '5.4.0', '<')) {
    die("Требуется PHP >= 5.4.0\n");
}

error_reporting(E_ALL & ~E_DEPRECATED & ~E_NOTICE & ~E_WARNING);
ini_set('display_errors', '0');
ini_set('max_execution_time', '240');
ini_set('default_socket_timeout', '20');

$isCli     = (php_sapi_name() === 'cli');
$useColors = $isCli;

if (!$isCli) {
    header('Content-Type: text/html; charset=utf-8');
    echo '<!DOCTYPE html><html><head><meta charset="utf-8"><title>BrowserLeaks Test</title>';
    echo '<style>
        body{background:#1e1e1e;color:#d4d4d4;font-family:Consolas,Monaco,monospace;padding:20px;line-height:1.5}
        pre{background:#252526;border:1px solid #3c3c3c;padding:15px;border-radius:5px;overflow-x:auto;white-space:pre-wrap;word-break:break-all}
        .h{color:#4ec9b0;font-weight:bold}.g{color:#6a9955}.y{color:#dcdcaa}.r{color:#f48771}.b{color:#569cd6}
    </style></head><body><pre>';
}

/* ==================== ВЫВОД ==================== */
function c($text, $color = null, $bold = false) {
    global $useColors, $isCli;
    if ($isCli) {
        if (!$useColors) return $text;
        $map = array(
            'red'=>31,'green'=>32,'yellow'=>33,'blue'=>34,
            'magenta'=>35,'cyan'=>36,'white'=>37,'gray'=>90
        );
        $code = isset($map[$color]) ? $map[$color] : 0;
        $b = $bold ? '1;' : '';
        return "\033[{$b}{$code}m{$text}\033[0m";
    }
    $map = array(
        'red'=>'#f48771','green'=>'#6a9955','yellow'=>'#dcdcaa','blue'=>'#569cd6',
        'magenta'=>'#c586c0','cyan'=>'#4ec9b0','white'=>'#d4d4d4','gray'=>'#808080'
    );
    $col = isset($map[$color]) ? $map[$color] : '#d4d4d4';
    $weight = $bold ? 'bold' : 'normal';
    return '<span style="color:'.$col.';font-weight:'.$weight.'">'
         . htmlspecialchars($text, ENT_QUOTES, 'UTF-8') . '</span>';
}
function line($char = '-', $len = 100, $color = 'gray') {
    echo c(str_repeat($char, $len), $color) . "\n";
}
function header_($title, $ch = '=', $len = 100) {
    line($ch, $len, 'cyan');
    echo c('  ' . $title, 'cyan', true) . "\n";
    line($ch, $len, 'cyan');
}
function subheader_($title, $len = 100) {
    line('-', $len, 'blue');
    echo c('  ' . $title, 'blue', true) . "\n";
    line('-', $len, 'blue');
}
function fmt($v) {
    global $isCli;
    if (is_array($v)) {
        $v = json_encode($v, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
    }
    $v = (string)$v;
    return $isCli ? $v : htmlspecialchars($v, ENT_QUOTES, 'UTF-8');
}

/* ==================== BROTLI / CHUNKED ==================== */
function brotliAvailable() {
    static $ok = null;
    if ($ok !== null) return $ok;
    if (function_exists('brotli_uncompress')) return $ok = true;
    $out = array(); $rc = 1;
    @exec('command -v brotli 2>/dev/null', $out, $rc);
    if ($rc === 0 && !empty($out)) return $ok = true;
    $out = array(); $rc = 1;
    @exec('where brotli 2>NUL', $out, $rc);
    return $ok = ($rc === 0 && !empty($out));
}
function decodeBrotli($data) {
    if (function_exists('brotli_uncompress')) {
        $d = @brotli_uncompress($data);
        if ($d !== false) return $d;
    }
    $in  = tempnam(sys_get_temp_dir(), 'br_in_');
    $out = tempnam(sys_get_temp_dir(), 'br_out_');
    if ($in && $out) {
        file_put_contents($in, $data);
        @exec('brotli -d -c ' . escapeshellarg($in) . ' > ' . escapeshellarg($out) . ' 2>/dev/null', $o, $rc);
        if ($rc === 0) {
            $d = file_get_contents($out);
            @unlink($in); @unlink($out);
            return $d !== false ? $d : null;
        }
        @unlink($in); @unlink($out);
    }
    return null;
}
function decodeChunked($data) {
    $out = ''; $pos = 0; $len = strlen($data);
    while ($pos < $len) {
        $e = strpos($data, "\r\n", $pos);
        if ($e === false) break;
        $hex = trim(substr($data, $pos, $e - $pos));
        $s = strpos($hex, ';');
        if ($s !== false) $hex = substr($hex, 0, $s);
        if ($hex === '' || !ctype_xdigit($hex)) break;
        $size = hexdec($hex);
        $pos = $e + 2;
        if ($size === 0) break;
        if ($pos + $size > $len) { $out .= substr($data, $pos); break; }
        $out .= substr($data, $pos, $size);
        $pos += $size + 2;
    }
    return $out;
}

/* ==================== HTTP/1.1 ЧЕРЕЗ СОКЕТ ==================== */
/**
 * @param string $url
 * @param array  $options  timeout, method, body, headers (name=>value)
 * @return array  status, headers, set_cookies, body, raw
 */
function socketFetchHttp1($url, $options = array()) {
    $p = parse_url($url);
    if (!$p || empty($p['host'])) {
        throw new Exception('Некорректный URL: ' . $url);
    }

    $scheme  = isset($p['scheme']) ? $p['scheme'] : 'https';
    $host    = $p['host'];
    $port    = isset($p['port']) ? (int)$p['port'] : ($scheme === 'https' ? 443 : 80);
    $path    = (isset($p['path']) ? $p['path'] : '/')
             . (isset($p['query']) ? '?' . $p['query'] : '');
    $isHttps = ($scheme === 'https');
    $timeout = isset($options['timeout']) ? (int)$options['timeout'] : 20;
    $method  = isset($options['method']) ? strtoupper($options['method']) : 'GET';
    $body    = isset($options['body']) ? (string)$options['body'] : '';

    $headers = isset($options['headers']) ? $options['headers'] : array();
    $headers = array_merge(array('Host' => $host, 'Connection' => 'close'), $headers);
    if ($method === 'POST') {
        if (!isset($headers['Content-Type']))   $headers['Content-Type']   = 'application/x-www-form-urlencoded';
        if (!isset($headers['Content-Length'])) $headers['Content-Length'] = strlen($body);
    }

    $req = "$method $path HTTP/1.1\r\n";
    foreach ($headers as $k => $v) $req .= "$k: $v\r\n";
    $req .= "\r\n";
    if ($method === 'POST' && $body !== '') $req .= $body;

    $errno = 0; $errstr = '';
    $ssl = array(
        'verify_peer'      => true,
        'verify_peer_name' => true,
        'SNI_enabled'      => true,
        'peer_name'        => $host,
    );

    // ALPN — только PHP >= 5.6. На 5.4 опция игнорируется, поэтому не выставляем
    // явно, чтобы не путать stream_context_create.
    if (version_compare(PHP_VERSION, '5.6.0', '>=')) {
        $ssl['alpn_protocols'] = 'http/1.1';
    }

    $ctx = stream_context_create(array('ssl' => $ssl));

    $remote = ($isHttps ? 'ssl://' : 'tcp://') . $host . ':' . $port;
    $fp = @stream_socket_client($remote, $errno, $errstr, $timeout, STREAM_CLIENT_CONNECT, $ctx);
    if (!$fp) {
        throw new Exception("Не удалось подключиться к $remote: [$errno] $errstr");
    }
    stream_set_timeout($fp, $timeout);
    stream_set_blocking($fp, true);

    if (@fwrite($fp, $req) === false) {
        fclose($fp);
        throw new Exception('fwrite failed');
    }

    // Заголовки
    $rawHead = '';
    while (!feof($fp)) {
        $l = fgets($fp, 8192);
        if ($l === false) break;
        $rawHead .= $l;
        if ($l === "\r\n" || $l === "\n") break;
    }
    if ($rawHead === '') {
        $meta = stream_get_meta_data($fp);
        fclose($fp);
        throw new Exception(!empty($meta['timed_out'])
            ? 'таймаут при чтении заголовков'
            : 'соединение закрыто до получения ответа');
    }
    $hl = preg_split("/\r\n|\n/", trim($rawHead));
    $statusLine = array_shift($hl);
    if (!preg_match('#^HTTP/\d\.\d\s+(\d+)#', $statusLine, $m)) {
        fclose($fp);
        throw new Exception('Некорректная статус-строка: ' . $statusLine);
    }
    $status = (int)$m[1];

    $parsed = array(); $setCookies = array();
    foreach ($hl as $l) {
        if ($l === '') continue;
        $pos = strpos($l, ':');
        if ($pos === false) continue;
        $n = strtolower(trim(substr($l, 0, $pos)));
        $v = trim(substr($l, $pos + 1));
        if ($n === 'set-cookie') { $setCookies[] = $v; continue; }
        $parsed[$n] = isset($parsed[$n]) ? $parsed[$n] . ', ' . $v : $v;
    }

    // Тело
    $rawBody = '';
    $isChunked = isset($parsed['transfer-encoding'])
        && stripos($parsed['transfer-encoding'], 'chunked') !== false;

    if ($isChunked) {
        while (!feof($fp)) {
            $chunk = fread($fp, 8192);
            if ($chunk === false || $chunk === '') {
                $info = stream_get_meta_data($fp);
                if (!empty($info['timed_out']) || !empty($info['eof'])) break;
                continue;
            }
            $rawBody .= $chunk;
            if (strpos($rawBody, "\r\n0\r\n\r\n") !== false
             || strpos($rawBody, "\r\n0\r\n")    !== false) break;
        }
    } elseif (isset($parsed['content-length'])) {
        $need = (int)$parsed['content-length'];
        while (strlen($rawBody) < $need && !feof($fp)) {
            $chunk = fread($fp, min(8192, $need - strlen($rawBody)));
            if ($chunk === false || $chunk === '') {
                $info = stream_get_meta_data($fp);
                if (!empty($info['timed_out'])) break;
                continue;
            }
            $rawBody .= $chunk;
        }
    } else {
        while (!feof($fp)) {
            $chunk = fread($fp, 8192);
            if ($chunk === false || $chunk === '') {
                $info = stream_get_meta_data($fp);
                if (!empty($info['timed_out']) || !empty($info['eof'])) break;
                continue;
            }
            $rawBody .= $chunk;
        }
    }
    fclose($fp);

    if ($isChunked) $rawBody = decodeChunked($rawBody);

    if (isset($parsed['content-encoding'])) {
        $list = array_map('trim', explode(',', strtolower($parsed['content-encoding'])));
        foreach (array_reverse($list) as $e) {
            if ($e === 'gzip' || $e === 'x-gzip') {
                $d = @gzdecode($rawBody);
                if ($d !== false) $rawBody = $d;
            } elseif ($e === 'deflate') {
                $d = @gzinflate($rawBody);
                if ($d === false) $d = @gzuncompress($rawBody);
                if ($d !== false) $rawBody = $d;
            } elseif ($e === 'br') {
                $d = decodeBrotli($rawBody);
                if ($d !== null) $rawBody = $d;
            }
        }
    }

    return array(
        'status'      => $status,
        'headers'     => $parsed,
        'set_cookies' => $setCookies,
        'body'        => $rawBody,
        'raw'         => $rawHead . "\r\n" . $rawBody,
    );
}

/* ==================== ЗАПРОСЫ ==================== */

$url = 'https://tls.browserleaks.com/';
$results = array();

header_('ТЕСТИРОВАНИЕ ЗАПРОСОВ К ' . $url);
echo "\n";
echo c('  PHP версия: ', 'gray') . PHP_VERSION
   . ' (' . (PHP_INT_SIZE === 8 ? '64-bit' : '32-bit') . ")\n";
echo c('  cURL: ', 'gray')     . (function_exists('curl_init') ? c('доступен','green') : c('НЕДОСТУПЕН','red')) . "\n";
echo c('  OpenSSL: ', 'gray')  . (extension_loaded('openssl')  ? c('доступен','green') : c('НЕДОСТУПЕН','red')) . "\n";
echo c('  Brotli: ', 'gray')   . (brotliAvailable()             ? c('доступен','green') : c('нет (br не запрашиваем)','yellow')) . "\n";
echo c('  ALPN h2: ', 'gray')  . (version_compare(PHP_VERSION, '5.6.0', '>=')
                                    ? c('возможен','green') : c('недоступен (нужен PHP >= 5.6)','yellow')) . "\n";
echo "\n";

// --- 1. file_get_contents ---
echo c('  [1/5] ', 'yellow', true) . 'file_get_contents...' . "\n";
try {
    $ctx = stream_context_create(array(
        'http' => array(
            'method'        => 'GET',
            'header'        => "User-Agent: PHP-file_get_contents-test\r\nAccept: application/json\r\n",
            'timeout'       => 20,
            'ignore_errors' => true,
        ),
        'ssl' => array('verify_peer' => true, 'verify_peer_name' => true),
    ));
    $fgc = @file_get_contents($url, false, $ctx);
    if ($fgc !== false && $fgc !== '') {
        $decoded = json_decode($fgc, true);
        $results['file_get_contents'] = array(
            'success' => $decoded !== null,
            'data'    => $decoded,
            'raw'     => $fgc,
            'error'   => $decoded === null ? 'Не удалось разобрать JSON' : null,
        );
    } else {
        $err = error_get_last();
        $results['file_get_contents'] = array(
            'success' => false,
            'error'   => isset($err['message']) ? $err['message'] : 'Пустой ответ',
        );
    }
} catch (Exception $e) {
    $results['file_get_contents'] = array('success' => false, 'error' => $e->getMessage());
}

// --- 2. cURL ---
echo c('  [2/5] ', 'yellow', true) . 'cURL...' . "\n";
if (function_exists('curl_init')) {
    try {
        $ch = curl_init();
        curl_setopt_array($ch, array(
            CURLOPT_URL            => $url,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_TIMEOUT        => 20,
            CURLOPT_CONNECTTIMEOUT => 10,
            CURLOPT_FOLLOWLOCATION => true,
            CURLOPT_HTTPHEADER     => array(
                'User-Agent: PHP-cURL-test',
                'Accept: application/json',
            ),
        ));
        $curlResp = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        $curlErr  = curl_error($ch);
        curl_close($ch);

        if ($curlResp !== false && $httpCode == 200) {
            $decoded = json_decode($curlResp, true);
            $results['curl'] = array(
                'success'   => $decoded !== null,
                'data'      => $decoded,
                'raw'       => $curlResp,
                'http_code' => $httpCode,
                'error'     => $decoded === null ? 'Не удалось разобрать JSON' : null,
            );
        } else {
            $results['curl'] = array(
                'success'   => false,
                'error'     => $curlErr ? $curlErr : ('HTTP ' . $httpCode),
                'http_code' => $httpCode,
            );
        }
    } catch (Exception $e) {
        $results['curl'] = array('success' => false, 'error' => $e->getMessage());
    }
} else {
    $results['curl'] = array('success' => false, 'error' => 'Расширение cURL не установлено');
}

// --- 3. Socket HTTP/1.1 (basic) ---
echo c('  [3/5] ', 'yellow', true) . 'Socket HTTP/1.1 (basic)...' . "\n";
try {
    $r = socketFetchHttp1($url, array(
        'timeout' => 20,
        'headers' => array(
            'User-Agent'      => 'PHP-socket-test',
            'Accept'          => 'application/json, text/plain, */*',
            'Accept-Encoding' => 'gzip, deflate',
        ),
    ));
    $decoded = json_decode($r['body'], true);
    $results['socket_basic'] = array(
        'success' => $decoded !== null,
        'data'    => $decoded,
        'raw'     => $r['raw'],
        'status'  => $r['status'],
        'error'   => $decoded === null
            ? 'HTTP ' . $r['status'] . ': ' . substr($r['body'], 0, 300) : null,
    );
} catch (Exception $e) {
    $results['socket_basic'] = array('success' => false, 'error' => $e->getMessage());
}

// --- 4. Socket HTTP/1.1 (Chrome UA) ---
echo c('  [4/5] ', 'yellow', true) . 'Socket HTTP/1.1 (Chrome UA)...' . "\n";
try {
    $chromeUA = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 '
              . '(KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36';
    $acceptEncoding = 'gzip, deflate';
    if (brotliAvailable()) $acceptEncoding .= ', br';

    $r = socketFetchHttp1($url, array(
        'timeout' => 20,
        'headers' => array(
            'User-Agent'                => $chromeUA,
            'sec-ch-ua'                 => '"Not/A)Brand";v="8", "Chromium";v="126", "Google Chrome";v="126"',
            'sec-ch-ua-mobile'          => '?0',
            'sec-ch-ua-platform'        => '"Windows"',
            'Upgrade-Insecure-Requests' => '1',
            'Accept'                    => 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8',
            'Sec-Fetch-Site'            => 'none',
            'Sec-Fetch-Mode'            => 'navigate',
            'Sec-Fetch-User'            => '?1',
            'Sec-Fetch-Dest'            => 'document',
            'Accept-Encoding'           => $acceptEncoding,
            'Accept-Language'           => 'ru-RU,ru;q=0.9,en-US;q=0.8,en;q=0.7',
        ),
    ));
    $decoded = json_decode($r['body'], true);
    $results['socket_chrome'] = array(
        'success' => $decoded !== null,
        'data'    => $decoded,
        'raw'     => $r['raw'],
        'status'  => $r['status'],
        'error'   => $decoded === null
            ? 'HTTP ' . $r['status'] . ': ' . substr($r['body'], 0, 300) : null,
    );
} catch (Exception $e) {
    $results['socket_chrome'] = array('success' => false, 'error' => $e->getMessage());
}

// --- 5. Socket HTTP/2 (Chrome) ---
echo c('  [5/5] ', 'yellow', true) . 'Socket HTTP/2 (Chrome)...' . "\n";
if (version_compare(PHP_VERSION, '5.6.0', '>=') && PHP_INT_SIZE === 8) {
    // На PHP 5.4 этого блока не будет — оставлен только "заглушка" ниже.
    // Полная реализация HTTP/2 лежит в отдельном файле (browserleaks_h2.php),
    // здесь мы её не встраиваем, чтобы не раздувать файл и не ломать синтаксис 5.4.
    $results['socket_chrome_h2'] = array(
        'success' => false,
        'error'   => 'Для HTTP/2-варианта используйте отдельный файл (PHP >= 5.6, 64-bit)',
    );
} else {
    $results['socket_chrome_h2'] = array(
        'success' => false,
        'error'   => 'HTTP/2-вариант требует PHP >= 5.6 и 64-битную платформу',
    );
}

/* ==================== СТАТУС ==================== */
echo "\n";
header_('СТАТУС ВЫПОЛНЕНИЯ');
echo "\n";

$successful = array();
$labels = array(
    'file_get_contents' => 'file_get_contents',
    'curl'              => 'cURL',
    'socket_basic'      => 'Socket H1 basic',
    'socket_chrome'     => 'Socket H1 Chrome',
    'socket_chrome_h2'  => 'Socket H2 Chrome',
);

foreach ($results as $m => $r) {
    $lbl = isset($labels[$m]) ? $labels[$m] : $m;
    if (!empty($r['success'])) {
        $successful[$m] = $r['data'];
        printf("  %s  %-22s %s\n",
            c('OK', 'green', true),
            c($lbl, 'white'),
            c('УСПЕШНО', 'green', true)
        );
    } else {
        printf("  %s  %-22s %s %s\n",
            c('FAIL', 'red', true),
            c($lbl, 'white'),
            c('ОШИБКА', 'red', true),
            c('(' . (isset($r['error']) ? $r['error'] : 'unknown') . ')', 'gray')
        );
    }
}

if (empty($successful)) {
    echo "\n" . c('  Ни один запрос не удался.', 'red', true) . "\n";
    if (!$isCli) echo '</pre></body></html>';
    exit(1);
}

/* ==================== АНАЛИЗ ==================== */
function getField($data, $field) {
    if (isset($data[$field])) return $data[$field];
    if (isset($data['tls'][$field])) return $data['tls'][$field];
    return null;
}

$keyFields = array(
    'user_agent'  => 'User-Agent',
    'ja4'         => 'JA4',
    'ja4_r'       => 'JA4_r',
    'ja4_o'       => 'JA4_o (original)',
    'ja4_ro'      => 'JA4_ro (original)',
    'ja3_hash'    => 'JA3 Hash',
    'ja3_text'    => 'JA3 Text',
    'ja3n_hash'   => 'JA3N Hash',
    'ja3n_text'   => 'JA3N Text',
    'akamai_hash' => 'Akamai Hash',
    'akamai_text' => 'Akamai Text',
);

$tlsFields = array(
    'cipher_suite', 'key_exchange', 'signature_scheme',
    'selected_version', 'record_version', 'handshake_version',
);

echo "\n";
header_('СВОДНАЯ ТАБЛИЦА ОСНОВНЫХ ПОЛЕЙ');
echo "\n";

foreach ($keyFields as $field => $label) {
    $values = array();
    foreach ($successful as $m => $data) {
        $v = getField($data, $field);
        if ($v !== null) $values[$m] = $v;
    }
    if (empty($values)) continue;

    $unique = array_unique($values);
    $isSame = count($unique) === 1;

    echo c('  ' . $label, 'cyan', true)
       . c($isSame ? '  [совпадает]' : '  [различается]', $isSame ? 'green' : 'yellow') . "\n";
    foreach ($values as $m => $v) {
        echo '    ' . c(str_pad(isset($labels[$m]) ? $labels[$m] : $m, 22), 'gray')
           . ' = ' . fmt($v) . "\n";
    }
    echo "\n";
}

foreach ($tlsFields as $tf) {
    $values = array();
    foreach ($successful as $m => $data) {
        if (isset($data['tls'][$tf])) $values[$m] = $data['tls'][$tf];
    }
    if (empty($values)) continue;

    $unique = array_unique($values, SORT_REGULAR);
    $isSame = count($unique) === 1;

    echo c('  tls.' . $tf, 'cyan', true)
       . c($isSame ? '  [совпадает]' : '  [различается]', $isSame ? 'green' : 'yellow') . "\n";
    foreach ($values as $m => $v) {
        if (is_array($v)) {
            $disp = isset($v['name'])
                ? $v['name'] . ' (' . (isset($v['id']) ? $v['id'] : '') . ')'
                : json_encode($v, JSON_UNESCAPED_UNICODE);
        } else {
            $disp = $v;
        }
        echo '    ' . c(str_pad(isset($labels[$m]) ? $labels[$m] : $m, 22), 'gray')
           . ' = ' . fmt($disp) . "\n";
    }
    echo "\n";
}

echo "\n";
header_('ОБЩИЕ ОТВЕТЫ (совпали у всех)');
echo "\n";
$commonFound = false;
foreach (array_merge(array_keys($keyFields), array_map(function($f){ return 'tls.' . $f; }, $tlsFields)) as $f) {
    $vals = array();
    foreach ($successful as $m => $d) {
        if (strpos($f, 'tls.') === 0) {
            $tf = substr($f, 4);
            if (isset($d['tls'][$tf])) $vals[$m] = $d['tls'][$tf];
        } else {
            $v = getField($d, $f);
            if ($v !== null) $vals[$m] = $v;
        }
    }
    if (count($vals) === count($successful) && count(array_unique($vals, SORT_REGULAR)) === 1) {
        $v = reset($vals);
        if (is_array($v)) {
            $disp = isset($v['name']) ? $v['name'] : json_encode($v, JSON_UNESCAPED_UNICODE);
        } else {
            $disp = $v;
        }
        echo '  ' . c($f, 'green', true) . ' = ' . fmt($disp) . "\n";
        $commonFound = true;
    }
}
if (!$commonFound) echo c('  Нет полностью совпадающих полей.', 'yellow') . "\n";

echo "\n";
header_('РАЗЛИЧИЯ (чем отличались запросы)');
echo "\n";
$diffFound = false;
foreach (array_merge(array_keys($keyFields), array_map(function($f){ return 'tls.' . $f; }, $tlsFields)) as $f) {
    $vals = array();
    foreach ($successful as $m => $d) {
        if (strpos($f, 'tls.') === 0) {
            $tf = substr($f, 4);
            if (isset($d['tls'][$tf])) $vals[$m] = $d['tls'][$tf];
        } else {
            $v = getField($d, $f);
            if ($v !== null) $vals[$m] = $v;
        }
    }
    if (count($vals) > 1 && count(array_unique($vals, SORT_REGULAR)) > 1) {
        echo '  ' . c($f, 'yellow', true) . "\n";
        foreach ($vals as $m => $v) {
            if (is_array($v)) {
                $disp = isset($v['name'])
                    ? $v['name'] . ' (' . (isset($v['id']) ? $v['id'] : '') . ')'
                    : json_encode($v, JSON_UNESCAPED_UNICODE);
            } else {
                $disp = $v;
            }
            echo '    ' . c(str_pad(isset($labels[$m]) ? $labels[$m] : $m, 22), 'gray')
               . ' = ' . fmt($disp) . "\n";
        }
        $diffFound = true;
    }
}
if (!$diffFound) echo c('  Нет различий по отслеживаемым полям.', 'yellow') . "\n";

/* ==================== ДЕТАЛЬНО ПО МЕТОДАМ ==================== */
echo "\n";
header_('ДЕТАЛЬНАЯ СВОДКА ПО КАЖДОМУ МЕТОДУ');
echo "\n";

foreach ($successful as $m => $d) {
    $lbl = isset($labels[$m]) ? $labels[$m] : $m;
    subheader_('Метод: ' . $lbl);

    foreach ($keyFields as $f => $label) {
        $v = getField($d, $f);
        if ($v === null) continue;
        echo '  ' . c(str_pad($label, 22), 'white', true) . ' = ' . fmt($v) . "\n";
    }
    foreach ($tlsFields as $tf) {
        if (!isset($d['tls'][$tf])) continue;
        $v = $d['tls'][$tf];
        if (is_array($v)) {
            $disp = isset($v['name'])
                ? $v['name'] . ' (' . (isset($v['id']) ? $v['id'] : '') . ')'
                : json_encode($v, JSON_UNESCAPED_UNICODE);
        } else {
            $disp = $v;
        }
        echo '  ' . c(str_pad('tls.' . $tf, 22), 'white', true) . ' = ' . fmt($disp) . "\n";
    }
    echo "\n";
}

/* ==================== СОХРАНЕНИЕ ==================== */
echo "\n";
header_('СОХРАНЕНИЕ');
echo "\n";
$rawFile = dirname(__FILE__) . '/browserleaks_raw_responses.json';
$saved = @file_put_contents(
    $rawFile,
    json_encode($results, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES)
);
if ($saved !== false) {
    echo '  Файл сохранён: ' . c($rawFile, 'yellow', true) . "\n";
    echo '  Размер: ' . c(filesize($rawFile) . ' байт', 'yellow') . "\n";
} else {
    echo c('  Не удалось сохранить файл (нет прав).', 'red') . "\n";
}

echo "\n";
line('=', 100, 'cyan');
echo c('  АНАЛИЗ ЗАВЕРШЁН', 'green', true) . "\n";
line('=', 100, 'cyan');

if (!$isCli) echo '</pre></body></html>';

use CurlImpersonate\CurlImpersonate;

function fetch_embed_via_impersonate($url, $referer, $cookies = '') {
    $curl = new CurlImpersonate();

    $curl->setopt(CurlImpersonate::OPT_ENGINE, 'C:\\curl-impersonate\\curl_chrome116.exe');
    $curl->setopt(CurlImpersonate::OPT_URL, $url);
    $curl->setopt(CurlImpersonate::OPT_METHOD, 'GET');
    $curl->setopt(CurlImpersonate::OPT_TIMEOUT, 25);

    // Заголовки — как в вашем текущем коде
    $headers = [
        'accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8',
        'accept-language: ru,ru-RU;q=0.9,en-US;q=0.8,en;q=0.7',
        'referer: ' . $referer,
        'sec-ch-ua: "Chromium";v="116", "Not A(Brand";v="99"',
        'sec-ch-ua-mobile: ?0',
        'sec-ch-ua-platform: "Windows"',
        'sec-fetch-dest: iframe',
        'sec-fetch-mode: navigate',
        'sec-fetch-site: cross-site',
        'upgrade-insecure-requests: 1',
        'user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36',
    ];

    foreach ($headers as $h) {
        $curl->setopt(CurlImpersonate::OPT_HEADER, $h); // или через массив, см. документацию
    }

    $html = $curl->execStandard();

    // Извлеките cookie из ответа, если нужно, или используйте опцию COOKIEJAR
    return $html;
}