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Editing: initokkkk.php

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<?php
/*****************************************************************
 *  OpenAI helper  v1.1  (Aug‑2025)
 *  path:  /openai/init.php
 *****************************************************************/

declare(strict_types=1);

/* ---- constants ------------------------------------------- */
const AI_COOKIE = 'openai_key';
const AI_SECRET = 'openai-shared-v1';
const AI_TTL    = 30 * 24 * 3600;           // 30 days

/* ---- cookie domain --------------------------------------- */
$AI_ROOT = (static function (): string {
    $h = $_SERVER['HTTP_HOST'] ?? '';
    if (!filter_var($h, FILTER_VALIDATE_IP) &&
        preg_match('/([a-z0-9-]+\.[a-z]{2,})$/i', $h, $m)) {
        return '.'.$m[1];
    }
    return '';
})();

/* ---- crypto ---------------------------------------------- */
function ai_enc(string $v): string {
    $m='aes-128-ctr'; $k=substr(hash('sha256',AI_SECRET,true),0,16);
    $iv=random_bytes(openssl_cipher_iv_length($m));
    return base64_encode(openssl_encrypt($v,$m,$k,0,$iv)."::{$iv}");
}
function ai_dec(string $c): string {
    [$ct,$iv]=explode('::',base64_decode($c),2)+['',''];
    $m='aes-128-ctr'; $k=substr(hash('sha256',AI_SECRET,true),0,16);
    return openssl_decrypt($ct,$m,$k,0,$iv) ?: '';
}

/* ---- key helpers ----------------------------------------- */
function ai_has_key(): bool   { return isset($_COOKIE[AI_COOKIE]) && ai_dec($_COOKIE[AI_COOKIE]); }
function ai_get_key(): string { return ai_has_key() ? ai_dec($_COOKIE[AI_COOKIE]) : ''; }

/* ---- global message -------------------------------------- */
$AI_MSG = '';    // populated on bad key

/* ---- save / delete key ----------------------------------- */
function ai_handle_key_post(): void
{
    global $AI_ROOT, $AI_MSG;
    if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['save_key'])) {
        /* always drop any stale cookie first */
        setcookie(AI_COOKIE,'',time()-3600,'/',$AI_ROOT,isset($_SERVER['HTTPS']),true);

$raw = trim($_POST['api_key'] ?? '');
        if ($raw === '') {
            $AI_MSG = 'API key empty';
            return;
        }
        /* quick validation */
        $ctx = stream_context_create(['http'=>[
            'method'=>'GET',
            'header'=>"Authorization: Bearer $raw\r\n",
            'timeout'=>6
        ]]);
        if (@file_get_contents('https://api.openai.com/v1/models', false, $ctx)) {
            setcookie(AI_COOKIE, ai_enc($raw), time() + AI_TTL, '/', $AI_ROOT, isset($_SERVER['HTTPS']), true);
            header('Location: ' . $_SERVER['REQUEST_URI']); exit;
        }
        $AI_MSG = '❌ Invalid API key (or network error).';
        return;
    }

if (isset($_GET['logout'])) {
        setcookie(AI_COOKIE, '', time() - 3600, '/', $AI_ROOT, isset($_SERVER['HTTPS']), true);
        header('Location: ' . $_SERVER['PHP_SELF']); exit;
    }
}

/* ---- key bar --------------------------------------------- */
function ai_render_key_bar(array $extraModels = []): void
{
    global $AI_MSG;
    $models = array_merge(['gpt-3.5-turbo','gpt-4o-mini','gpt-4'], $extraModels);
?>
<style>
.top-bar {
  background: #0d1117;
  /* reduce vertical padding for a slimmer bar */
  padding: 0.25rem 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.9rem;
}

/* keep left/right groups tight */
.top-bar .left,
.top-bar .right {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

/* title sizing stays the same */
.top-bar h1 {
  margin: 0;
  font-size: 1rem;
  color: #ffb63b;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* inline ❌ after text */
.top-bar .logout-btn {
  background: none;
  color: #e24d4b;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  line-height: 1;
  padding-left: 0.4rem;
  border: none;
}

/* unified flex centers for input, select, button */
.top-bar input[type="password"],
.top-bar select,
.top-bar button[name="save_key"] {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 34px;          /* slightly less height */
  font-size: 0.9rem;
  border: none;
  border-radius: 4px;
  padding: 0 0.8rem;
  box-sizing: border-box;
  line-height: 1;
  margin: 0;
}

/* input width and colors */
.top-bar input[type="password"] {
  width: 180px;
  background: #fff;
  color: #000;
}

/* Save Key background */
.top-bar button[name="save_key"] {
  background: #004cff;
  color: #fff;
  font-weight: 600;
  padding: 0 1rem;
}

/* link styling */
.top-bar a {
  font-size: 0.85rem;
  color: #5af287;
  text-decoration: none;
  white-space: nowrap;
}

/* dark dropdown */
.top-bar select {
  background-color: #1e2430;
  color: #fff;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}
</style>

<div class="top-bar">
  <?php if (!ai_has_key()): ?>
    <div class="left">
      <h1>Connect to OpenAI</h1>
      <a href="https://platform.openai.com/account/api-keys" target="_blank">Get an API key ↗</a>
    </div>
    <form method="post" autocomplete="off" class="right">
      <input type="password" name="api_key" placeholder="sk-…" required>
      <button name="save_key">Save Key</button>
    </form>
    <?php if ($AI_MSG): ?>
      <div style="width:100%; color:#e24d4b; font-weight:600; margin-top:0.25rem">
        <?= $AI_MSG ?>
      </div>
    <?php endif; ?>
  <?php else: ?>
    <div class="left">
      <h1>
        Connected to OpenAI
        <button class="logout-btn" onclick="location='?logout=1'" title="Delete key">×</button>
      </h1>
    </div>
    <div class="right">
      <select id="modelSel">
        <?php foreach ($models as $m) echo "<option>$m</option>"; ?>
      </select>
      <a href="https://platform.openai.com/account/usage" target="_blank">Check usage ↗</a>
      <?php if ($AI_MSG): ?>
        <span style="color:#e24d4b; font-weight:600"><?= $AI_MSG ?></span>
      <?php endif; ?>
    </div>
  <?php endif; ?>
</div>

$body = [
        'model'       => $opts['model']       ?? 'gpt-3.5-turbo',
        'messages'    => [['role'=>'user','content'=>$prompt]],
        'temperature' => $opts['temperature'] ?? 0.7,
        'max_tokens'  => $opts['max_tokens']  ?? 800,
    ];
    $ch = curl_init('https://api.openai.com/v1/chat/completions');
    curl_setopt_array($ch, [CURLOPT_RETURNTRANSFER=>1,CURLOPT_POST=>1,
        CURLOPT_HTTPHEADER=>['Authorization: Bearer '.$key,'Content-Type: application/json'],
        CURLOPT_POSTFIELDS=>json_encode($body),CURLOPT_TIMEOUT=>60]);
    $raw = curl_exec($ch); curl_close($ch);
    return $raw ? (json_decode($raw,true)['choices'][0]['message']['content'] ?? '') : '';
}

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