fitme3070.pt/shared/platform-tools/setup.php

<?php
// ─── Shared first-run setup page ─────────────────────────────────────────────
//
// A view fragment, like platform_update.php and backups.php: the site's own
// setup.php stub opens the PDO, defines $repo_root and $setup_title, then
// requires this file.
//
// Who may run it. On a fresh install there is no one to authenticate, so the
// page must be usable before any account exists -- but it writes credentials,
// so it cannot stay open afterwards. The rule: open while the platform has no
// sysadmin, sysadmin-only once it has one. That way the window closes by
// itself, without anyone remembering to delete a file.

require_once __DIR__ . '/functions_setup.php';
require_once __DIR__ . '/functions_csrf.php';

if (!isset($pdo) || !$pdo instanceof PDO) {
    http_response_code(500);
    exit('setup.php: no PDO — the site bootstrap (config/db.php) must open the connection first.');
}
$repo_root   = $repo_root   ?? dirname(__DIR__, 2);
$setup_title = $setup_title ?? 'Configuração inicial';

// ─── Access ─────────────────────────────────────────────────────────────────
// Fail closed. The only state that legitimately opens this page is "the users
// table does not exist yet" -- a genuinely fresh install. Anything else that
// goes wrong (a query error, a missing helper, a permissions problem) is
// treated as "already configured", because a page that writes SMTP credentials
// must not become public the moment an unrelated thing breaks.
//
// This was originally a try/catch around the whole check that set
// $sysadminExists = false on any Throwable. On a site that had not wired the
// shared auth, auth_schema() was undefined, the catch swallowed the Error, and
// the page served itself to anonymous visitors on an install that had a
// sysadmin -- confirmed on fotografia. That is the wrong direction to fail in.
$s = platform_setup_user_schema();
$usersTableExists = false;
try {
    $usersTableExists = $pdo->query("SHOW TABLES LIKE " . $pdo->quote($s['table']))->fetchColumn() !== false;
} catch (Throwable $e) {
    $usersTableExists = true;   // cannot tell -> assume configured
}

if (!$usersTableExists) {
    $sysadminExists = false;    // fresh install: nobody to authenticate yet
} else {
    try {
        $sysadminExists = (bool) $pdo->query(
            "SELECT 1 FROM `{$s['table']}` WHERE `{$s['role']}` = 'sysadmin' LIMIT 1"
        )->fetchColumn();
    } catch (Throwable $e) {
        error_log('[setup] sysadmin check failed, denying access: ' . $e->getMessage());
        $sysadminExists = true;
    }
}

$isSysadmin = function_exists('auth_is_sysadmin')
    ? auth_is_sysadmin()
    : (($_SESSION['user']['role'] ?? '') === 'sysadmin');

if ($sysadminExists && !$isSysadmin) {
    http_response_code(403);
    exit('Configuração já concluída. Entre como sysadmin para a alterar.');
}

// ─── Actions ────────────────────────────────────────────────────────────────
$errors  = [];
$saved   = false;
$test    = null;
$state   = platform_setup_state($pdo);

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    if (!platform_csrf_ok()) {
        $errors[] = 'Pedido rejeitado (token CSRF ausente ou inválido). Recarregue a página.';
    } else {
        $action = (string) ($_POST['_action'] ?? 'save');
        $uid    = isset($_SESSION['user']['id']) ? (int) $_SESSION['user']['id'] : null;

        $r = platform_setup_save_smtp($pdo, $_POST, $uid);
        if (!$r['ok']) {
            $errors = $r['errors'];
        } else {
            $saved = true;
            $state = platform_setup_state($pdo);
            if ($action === 'save_test') {
                $test = platform_setup_test_smtp($pdo, $repo_root);
            }
        }
    }
}

$c = $state['config'];
$h = fn($v) => htmlspecialchars((string) $v, ENT_QUOTES, 'UTF-8');
?><!doctype html>
<html lang="pt"><head>
<meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
<title><?= $h($setup_title) ?></title>
<style>
  :root { color-scheme: light dark; --ink:#14181B; --soft:#4A555A; --line:#D3DADC;
          --bg:#F4F6F7; --card:#FFF; --ok:#35704A; --okbg:#DFEDE3;
          --bad:#AF3A2B; --badbg:#F7E3E0; --warn:#8C6410; --warnbg:#F6ECD6; --accent:#0E6E6B; }
  @media (prefers-color-scheme: dark) { :root {
          --ink:#E3E8E9; --soft:#A5B1B5; --line:#2A3336; --bg:#0F1315; --card:#161B1E;
          --ok:#74B98C; --okbg:#172C1F; --bad:#E8867A; --badbg:#35201C;
          --warn:#D9AC55; --warnbg:#2F2716; --accent:#4FC0B8; } }
  *{box-sizing:border-box} body{margin:0;background:var(--bg);color:var(--ink);
    font:16px/1.6 ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;padding:0 1.25rem 5rem}
  .wrap{max-width:44rem;margin:0 auto;padding-top:3.5rem}
  h1{font-size:1.7rem;letter-spacing:-.02em;margin:0 0 .4rem}
  .lede{color:var(--soft);margin:0 0 1.75rem}
  .card{background:var(--card);border:1px solid var(--line);padding:1.5rem;margin-bottom:1.25rem}
  label{display:block;font-weight:600;font-size:.9rem;margin-bottom:.3rem}
  .hint{color:var(--soft);font-size:.82rem;margin:.3rem 0 0}
  input,select{width:100%;padding:.55rem .7rem;border:1px solid var(--line);
    background:var(--bg);color:var(--ink);font:inherit;font-size:.95rem}
  .row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
  .field{margin-bottom:1.1rem}
  .actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:1.5rem}
  button{padding:.6rem 1.1rem;border:1px solid var(--accent);background:var(--accent);
    color:var(--card);font:inherit;font-weight:600;cursor:pointer}
  button.ghost{background:transparent;color:var(--accent)}
  button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
  .msg{padding:.75rem 1rem;margin-bottom:1rem;font-size:.92rem;border-left:3px solid}
  .msg.ok{background:var(--okbg);color:var(--ok);border-color:var(--ok)}
  .msg.bad{background:var(--badbg);color:var(--bad);border-color:var(--bad)}
  .msg.warn{background:var(--warnbg);color:var(--warn);border-color:var(--warn)}
  pre{background:var(--bg);border:1px solid var(--line);padding:.8rem;overflow-x:auto;
    font:.8rem/1.5 ui-monospace,Menlo,Consolas,monospace;color:var(--soft);margin:.75rem 0 0}
  .why{border-left:3px solid var(--line);padding-left:1rem;color:var(--soft);font-size:.9rem}
</style>
</head><body>
<div class="wrap">

  <h1><?= $h($setup_title) ?></h1>
  <p class="lede">
    Falta configurar o envio de email. A plataforma fica retida aqui até estar feito.
  </p>

  <?php foreach ($errors as $e): ?>
    <div class="msg bad"><?= $h($e) ?></div>
  <?php endforeach; ?>

  <?php if ($saved && $state['smtp_ok']): ?>
    <div class="msg ok">Configuração guardada. A plataforma já pode enviar email.</div>
  <?php elseif ($saved): ?>
    <div class="msg warn">Guardado, mas ainda falta: <?= $h(implode(', ', $state['missing'])) ?>.</div>
  <?php endif; ?>

  <?php if (!$state['secrets_ok']): ?>
    <div class="msg bad">
      <strong>APP_SECRET_KEY não está definida no <code>.env</code>.</strong>
      A palavra-passe de SMTP seria guardada em claro na base de dados — e a base
      de dados vai para dentro de cada backup. Defina a chave antes de continuar.
    </div>
  <?php endif; ?>

  <?php if ($test !== null): ?>
    <div class="msg <?= !empty($test['ok']) ? 'ok' : 'bad' ?>">
      <?= !empty($test['ok'])
            ? 'Ligação e autenticação bem-sucedidas.'
            : $h((string) ($test['error'] ?? 'Não foi possível ligar/autenticar.')) ?>
    </div>
    <?php if (!empty($test['log'])): ?><pre><?= $h($test['log']) ?></pre><?php endif; ?>
  <?php endif; ?>

  <form method="post" class="card">
    <?= platform_csrf_field() ?>

    <div class="row">
      <div class="field">
        <label for="smtp_host">Servidor SMTP</label>
        <input id="smtp_host" name="smtp_host" required value="<?= $h($c['host'] ?? '') ?>"
               autocomplete="off" placeholder="smtp.exemplo.pt">
      </div>
      <div class="field">
        <label for="smtp_port">Porta</label>
        <input id="smtp_port" name="smtp_port" type="number" min="1" max="65535"
               value="<?= $h($c['port'] ?: 587) ?>">
        <p class="hint">587 para TLS, 465 para SSL.</p>
      </div>
    </div>

    <div class="field">
      <label for="smtp_secure">Encriptação</label>
      <select id="smtp_secure" name="smtp_secure">
        <?php foreach (['tls' => 'TLS (StartTLS)', 'ssl' => 'SSL', '' => 'Nenhuma'] as $v => $lbl): ?>
          <option value="<?= $h($v) ?>" <?= ($c['secure'] ?? 'tls') === $v ? 'selected' : '' ?>><?= $h($lbl) ?></option>
        <?php endforeach; ?>
      </select>
    </div>

    <div class="row">
      <div class="field">
        <label for="smtp_username">Utilizador</label>
        <input id="smtp_username" name="smtp_username" value="<?= $h($c['username'] ?? '') ?>"
               autocomplete="off">
      </div>
      <div class="field">
        <label for="smtp_password">Palavra-passe</label>
        <input id="smtp_password" name="smtp_password" type="password" autocomplete="new-password"
               placeholder="<?= ($c['password'] ?? '') !== '' ? '•••••••• (definida)' : '' ?>">
        <p class="hint">
          <?= ($c['password'] ?? '') !== ''
              ? 'Deixe vazio para manter a atual.'
              : 'Guardada cifrada (AES-256-GCM); a chave vive só no .env.' ?>
        </p>
      </div>
    </div>

    <div class="row">
      <div class="field">
        <label for="email_from">Remetente</label>
        <input id="email_from" name="email_from" type="email" required
               value="<?= $h($c['from'] ?? '') ?>" placeholder="noreply@exemplo.pt">
      </div>
      <div class="field">
        <label for="email_from_name">Nome do remetente</label>
        <input id="email_from_name" name="email_from_name" value="<?= $h($c['from_name'] ?? '') ?>">
      </div>
    </div>

    <div class="actions">
      <button type="submit" name="_action" value="save_test">Guardar e testar ligação</button>
      <button type="submit" name="_action" value="save" class="ghost">Guardar</button>
    </div>
  </form>

  <p class="why">
    Porque é obrigatório: sem SMTP ninguém recupera a palavra-passe, nenhum aviso
    chega e nenhum formulário de contacto é entregue — e nada disso falha de
    forma visível. Falha como silêncio, semanas depois.
  </p>

</div>
</body></html>