refactor: 抽出 BackUrl::sanitizeForLinks 统一 back 安全护栏
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@@ -39,11 +39,7 @@
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// - 拒绝引号/尖括号(由于本页大量 href 采用 `{!! !!}` 原样输出,必须严控注入风险)
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// - 拒绝 nested back=(避免 URL 膨胀/绕过)
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$incomingBack = (string) request()->query('back', '');
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$safeBackForLinks = (str_starts_with($incomingBack, '/')
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&& !preg_match('/["\'<>]/', $incomingBack)
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&& !preg_match('/(?:^|[?&])back=/', $incomingBack))
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? $incomingBack
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: '';
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$safeBackForLinks = \App\Support\BackUrl::sanitizeForLinks($incomingBack);
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@endphp
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<div class="card mb-20">
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<p class="muted muted-tight">这里是总台视角的订阅目录页,承接“套餐 -> 订阅 -> 平台订单”的收费主链中间层。</p>
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