shumengya mail@smyhub.com
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309
cf-nav-backend/worker.js
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309
cf-nav-backend/worker.js
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// Cloudflare Worker - 仅 API 后端（前后端分离）
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// 部署到 cf-nav-backend，前端静态资源由 Cloudflare Pages 托管
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const corsHeaders = {
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'Access-Control-Allow-Origin': '*',
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'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, OPTIONS',
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'Access-Control-Allow-Headers': 'Content-Type, Authorization',
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};
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function verifyAuth(request, env) {
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const auth = request.headers.get('Authorization');
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const token = (env.ADMIN_PASSWORD || env.ADMIN_TOKEN || '').trim();
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if (!token) return false;
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const prefix = 'Bearer ';
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if (!auth || !auth.startsWith(prefix)) return false;
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const provided = auth.slice(prefix.length).trim();
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return provided === token;
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}
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export default {
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async fetch(request, env) {
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if (request.method === 'OPTIONS') {
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return new Response(null, { headers: corsHeaders });
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}
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const url = new URL(request.url);
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const path = url.pathname;
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try {
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if (path === '/api/sites') {
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return handleSites(request, env, corsHeaders);
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}
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if (path === '/api/auth/check') {
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return handleAuthCheck(request, env, corsHeaders);
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}
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if (path.match(/^\/api\/sites\/[^/]+\/click$/)) {
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const id = path.split('/')[3];
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return handleSiteClick(request, env, id, corsHeaders);
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}
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if (path.startsWith('/api/sites/')) {
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const id = path.split('/')[3];
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return handleSite(request, env, id, corsHeaders);
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}
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if (path === '/api/categories') {
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return handleCategories(request, env, corsHeaders);
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}
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if (path.startsWith('/api/categories/')) {
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const name = decodeURIComponent(path.split('/')[3] || '');
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return handleCategory(request, env, name, corsHeaders);
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}
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if (path === '/api/favicon') {
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return handleFavicon(request, env, corsHeaders);
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}
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return new Response('Not Found', { status: 404 });
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} catch (error) {
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return new Response('Internal Server Error: ' + error.message, {
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status: 500,
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headers: corsHeaders,
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});
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}
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},
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};
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/** 校验管理员 token，用于前端进入后台时确认链接有效 */
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async function handleAuthCheck(request, env, corsHeaders) {
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if (request.method !== 'GET') {
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return new Response('Method not allowed', { status: 405, headers: corsHeaders });
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}
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const token = (env.ADMIN_PASSWORD || env.ADMIN_TOKEN || '').trim();
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if (!token) {
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return new Response(JSON.stringify({ ok: false }), {
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status: 401,
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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const auth = request.headers.get('Authorization');
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const prefix = 'Bearer ';
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if (!auth || !auth.startsWith(prefix)) {
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return new Response(JSON.stringify({ ok: false }), {
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status: 401,
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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const provided = auth.slice(prefix.length).trim();
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if (provided !== token) {
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return new Response(JSON.stringify({ ok: false }), {
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status: 401,
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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return new Response(JSON.stringify({ ok: true }), {
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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async function handleFavicon(request, env, corsHeaders) {
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const url = new URL(request.url);
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const domain = url.searchParams.get('domain');
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if (!domain) {
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return new Response('Missing domain parameter', { status: 400, headers: corsHeaders });
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}
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const faviconApi = env.FAVICON_API || env.FAVICON;
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if (faviconApi && faviconApi !== '') {
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const targetUrl = domain.startsWith('http') ? domain : `https://${domain}`;
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try {
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const res = await fetch(faviconApi + encodeURIComponent(targetUrl), {
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headers: { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36' },
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cf: { cacheTtl: 86400, cacheEverything: true },
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});
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if (res.ok) {
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return new Response(res.body, {
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status: res.status,
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headers: {
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...corsHeaders,
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'Content-Type': res.headers.get('Content-Type') || 'image/x-icon',
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'Cache-Control': 'public, max-age=86400',
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},
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});
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}
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} catch (_) {
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/* 外置 API 失败时回退到内置源 */
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}
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}
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const faviconSources = [
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`https://www.google.com/s2/favicons?domain=${domain}&sz=64`,
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`https://icons.duckduckgo.com/ip3/${domain}.ico`,
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`https://favicon.api.shumengya.top/${domain}`,
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];
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for (const source of faviconSources) {
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try {
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const response = await fetch(source, {
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headers: { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36' },
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cf: { cacheTtl: 86400, cacheEverything: true },
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});
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if (response.ok) {
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return new Response(response.body, {
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status: response.status,
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headers: {
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...corsHeaders,
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'Content-Type': response.headers.get('Content-Type') || 'image/x-icon',
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'Cache-Control': 'public, max-age=86400',
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},
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});
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}
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} catch (_) {
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continue;
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}
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}
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return new Response('Favicon not found', { status: 404, headers: corsHeaders });
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}
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async function handleSites(request, env, corsHeaders) {
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if (request.method === 'GET') {
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const sitesData = (await env.NAV_KV.get('sites', { type: 'json' })) || [];
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const normalized = sitesData.map((s) => ({ ...s, clicks: typeof s.clicks === 'number' ? s.clicks : 0 }));
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return new Response(JSON.stringify(normalized), {
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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if (request.method === 'POST') {
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if (!verifyAuth(request, env)) {
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return new Response('Unauthorized', { status: 401, headers: corsHeaders });
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}
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const newSite = await request.json();
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const sites = (await env.NAV_KV.get('sites', { type: 'json' })) || [];
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const categories = (await env.NAV_KV.get('categories', { type: 'json' })) || [];
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newSite.id = Date.now().toString();
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newSite.clicks = 0;
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sites.push(newSite);
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if (newSite.category && !categories.includes(newSite.category)) {
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categories.push(newSite.category);
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await env.NAV_KV.put('categories', JSON.stringify(categories));
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}
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await env.NAV_KV.put('sites', JSON.stringify(sites));
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return new Response(JSON.stringify(newSite), {
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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return new Response('Method not allowed', { status: 405, headers: corsHeaders });
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}
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async function handleSite(request, env, id, corsHeaders) {
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const sites = (await env.NAV_KV.get('sites', { type: 'json' })) || [];
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const categories = (await env.NAV_KV.get('categories', { type: 'json' })) || [];
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if (request.method === 'GET') {
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const site = sites.find((s) => s.id === id);
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if (!site) return new Response('Not Found', { status: 404, headers: corsHeaders });
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const normalized = { ...site, clicks: typeof site.clicks === 'number' ? site.clicks : 0 };
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return new Response(JSON.stringify(normalized), {
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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if (request.method === 'PUT') {
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if (!verifyAuth(request, env)) {
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return new Response('Unauthorized', { status: 401, headers: corsHeaders });
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}
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const updatedSite = await request.json();
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const index = sites.findIndex((s) => s.id === id);
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if (index === -1) return new Response('Not Found', { status: 404, headers: corsHeaders });
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const existingClicks = typeof sites[index].clicks === 'number' ? sites[index].clicks : 0;
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sites[index] = { ...sites[index], ...updatedSite, id, clicks: existingClicks };
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if (updatedSite.category && !categories.includes(updatedSite.category)) {
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categories.push(updatedSite.category);
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await env.NAV_KV.put('categories', JSON.stringify(categories));
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}
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await env.NAV_KV.put('sites', JSON.stringify(sites));
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return new Response(JSON.stringify(sites[index]), {
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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if (request.method === 'DELETE') {
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if (!verifyAuth(request, env)) {
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return new Response('Unauthorized', { status: 401, headers: corsHeaders });
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}
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const index = sites.findIndex((s) => s.id === id);
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if (index === -1) return new Response('Not Found', { status: 404, headers: corsHeaders });
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sites.splice(index, 1);
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await env.NAV_KV.put('sites', JSON.stringify(sites));
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return new Response(JSON.stringify({ success: true }), {
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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return new Response('Method not allowed', { status: 405, headers: corsHeaders });
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}
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async function handleSiteClick(request, env, id, corsHeaders) {
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if (request.method !== 'POST') {
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return new Response('Method not allowed', { status: 405, headers: corsHeaders });
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}
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const sites = (await env.NAV_KV.get('sites', { type: 'json' })) || [];
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const index = sites.findIndex((s) => s.id === id);
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if (index === -1) {
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return new Response('Not Found', { status: 404, headers: corsHeaders });
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}
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const site = sites[index];
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const prev = typeof site.clicks === 'number' ? site.clicks : 0;
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sites[index] = { ...site, clicks: prev + 1 };
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await env.NAV_KV.put('sites', JSON.stringify(sites));
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return new Response(JSON.stringify({ success: true, clicks: prev + 1 }), {
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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async function handleCategories(request, env, corsHeaders) {
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if (request.method === 'GET') {
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let categories = (await env.NAV_KV.get('categories', { type: 'json' })) || [];
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if (!categories.length) {
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const sites = (await env.NAV_KV.get('sites', { type: 'json' })) || [];
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categories = [...new Set(sites.map((s) => s.category).filter(Boolean))];
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if (categories.length) await env.NAV_KV.put('categories', JSON.stringify(categories));
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}
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return new Response(JSON.stringify(categories), {
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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if (request.method === 'POST') {
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if (!verifyAuth(request, env)) {
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return new Response('Unauthorized', { status: 401, headers: corsHeaders });
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}
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const { name } = await request.json();
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if (!name || !name.trim()) {
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return new Response('Bad Request', { status: 400, headers: corsHeaders });
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}
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const categories = (await env.NAV_KV.get('categories', { type: 'json' })) || [];
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if (!categories.includes(name.trim())) {
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categories.push(name.trim());
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await env.NAV_KV.put('categories', JSON.stringify(categories));
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}
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return new Response(JSON.stringify({ success: true }), {
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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return new Response('Method not allowed', { status: 405, headers: corsHeaders });
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}
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async function handleCategory(request, env, name, corsHeaders) {
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if (!name) return new Response('Bad Request', { status: 400, headers: corsHeaders });
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if (!verifyAuth(request, env)) {
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return new Response('Unauthorized', { status: 401, headers: corsHeaders });
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}
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const categories = (await env.NAV_KV.get('categories', { type: 'json' })) || [];
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if (request.method === 'DELETE') {
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const filtered = categories.filter((c) => c !== name);
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await env.NAV_KV.put('categories', JSON.stringify(filtered));
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return new Response(JSON.stringify({ success: true }), {
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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if (request.method === 'PUT') {
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const body = await request.json();
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const newName = (body?.name || '').trim();
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if (!newName) return new Response('Bad Request', { status: 400, headers: corsHeaders });
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const updated = categories.map((c) => (c === name ? newName : c));
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const unique = Array.from(new Set(updated));
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await env.NAV_KV.put('categories', JSON.stringify(unique));
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const sites = (await env.NAV_KV.get('sites', { type: 'json' })) || [];
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const updatedSites = sites.map((site) =>
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site.category === name ? { ...site, category: newName } : site
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);
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await env.NAV_KV.put('sites', JSON.stringify(updatedSites));
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return new Response(JSON.stringify({ success: true }), {
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headers: { ...corsHeaders, 'Content-Type': 'application/json' },
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});
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}
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return new Response('Method not allowed', { status: 405, headers: corsHeaders });
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}
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