cloud-chip.cn/app/Http/Controllers/SitemapController.php

<?php

namespace App\Http\Controllers;

use App\Models\Article;
use App\Models\GlossaryTerm;
use App\Models\Product;
use App\Models\Solution;
use App\Models\News;

class SitemapController extends Controller
{
    /**
     * 机读站点地图（SEO：供百度 / Google 等搜索引擎提交）。
     * 访问 /sitemap.xml 获取。
     */
    public function xml()
    {
        $urls = [];

        // ── 核心静态页面 ──────────────────────────────
        $core = [
            '/'         => ['freq' => 'daily',   'pri' => '1.0'],
            '/about'    => ['freq' => 'monthly', 'pri' => '0.8'],
            '/products' => ['freq' => 'weekly',  'pri' => '0.8'],
            '/articles' => ['freq' => 'weekly',  'pri' => '0.8'],
            '/solutions' => ['freq' => 'weekly',  'pri' => '0.8'],
            '/news' => ['freq' => 'weekly',  'pri' => '0.8'],
            '/glossary' => ['freq' => 'weekly',  'pri' => '0.8'],
            '/forum'    => ['freq' => 'daily',   'pri' => '0.7'],
            '/contact'  => ['freq' => 'yearly',  'pri' => '0.6'],
            '/sitemap'  => ['freq' => 'monthly', 'pri' => '0.3'],
        ];

        foreach ($core as $path => $meta) {
            $urls[] = [
                'loc'  => url($path),
                'freq' => $meta['freq'],
                'pri'  => $meta['pri'],
            ];
        }

        // ── 动态内容：产品 ────────────────────────────
        foreach (Product::published()->get() as $p) {
            $urls[] = [
                'loc'  => route('products.show', $p->slug),
                'last' => $p->updated_at?->toW3CString(),
                'freq' => 'weekly',
                'pri'  => '0.7',
            ];
        }

        // ── 动态内容：技术文章 ────────────────────────
        foreach (Article::published()->get() as $a) {
            $urls[] = [
                'loc'  => route('articles.show', $a->slug),
                'last' => $a->published_at?->toW3CString(),
                'freq' => 'monthly',
                'pri'  => '0.6',
            ];
        }

        // ── 动态内容：术语库 ──────────────────────────
        foreach (GlossaryTerm::ordered()->get() as $g) {
            $urls[] = [
                'loc'  => route('glossary.show', $g->slug),
                'freq' => 'monthly',
                'pri'  => '0.4',
            ];
        }

        // ── 动态内容：解决方案 ────────────────────────
        foreach (Solution::published()->get() as $s) {
            $urls[] = [
                'loc'  => route('solutions.show', $s->slug),
                'last' => $s->updated_at?->toW3CString(),
                'freq' => 'weekly',
                'pri'  => '0.7',
            ];
        }

        // ── 动态内容：新闻动态 ────────────────────────
        foreach (News::published()->get() as $n) {
            $urls[] = [
                'loc'  => route('news.show', $n->slug),
                'last' => $n->published_at?->toW3CString(),
                'freq' => 'monthly',
                'pri'  => '0.6',
            ];
        }

        $xml = '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
        $xml .= '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">' . "\n";

        foreach ($urls as $u) {
            $xml .= '  <url>' . "\n";
            $xml .= '    <loc>' . e($u['loc']) . '</loc>' . "\n";

            if (!empty($u['last'])) {
                $xml .= '    <lastmod>' . e($u['last']) . '</lastmod>' . "\n";
            }

            $xml .= '    <changefreq>' . e($u['freq']) . '</changefreq>' . "\n";
            $xml .= '    <priority>' . e($u['pri']) . '</priority>' . "\n";
            $xml .= '  </url>' . "\n";
        }

        $xml .= '</urlset>';

        return response($xml, 200, [
            'Content-Type' => 'application/xml; charset=UTF-8',
        ]);
    }

    /**
     * robots.txt：开放前台收录，屏蔽后台与用户接口，并指向 sitemap.xml。
     * 访问 /robots.txt 获取（动态读取 APP_URL，域名随环境自动变化）。
     */
    public function robots()
    {
        $base = rtrim(config('app.url'), '/');

        $content = "User-agent: *\n";
        $content .= "Allow: /\n\n";
        $content .= "# 后台与管理 / 用户接口不向搜索引擎开放\n";
        $content .= "Disallow: /admin/\n";
        $content .= "Disallow: /login\n";
        $content .= "Disallow: /register\n";
        $content .= "Disallow: /logout\n";
        $content .= "Disallow: /settings\n";
        $content .= "Disallow: /upload\n";
        $content .= "Disallow: /forum/threads\n";
        $content .= "Disallow: /api/\n\n";
        $content .= "Sitemap: {$base}/sitemap.xml\n";

        return response($content, 200, [
            'Content-Type' => 'text/plain; charset=UTF-8',
        ]);
    }

    /**
     * 可视化「网站地图」页面（用户可见，列出全站主要页面与内容）。
     * 访问 /sitemap 获取。
     */
    public function index()
    {
        $products = Product::published()->get();
        $articles = Article::published()->get();
        $terms    = GlossaryTerm::ordered()->get();
        $solutions = Solution::published()->get();
        $news     = News::published()->get();

        return view('sitemap', compact('products', 'articles', 'terms', 'solutions', 'news'));
    }
}