'use strict';
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const path = require('path');
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const MAX_AGE = 'public, max-age=2592000'; // 30 days
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module.exports = options => {
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return function siteFile(ctx, next) {
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if (ctx.method !== 'HEAD' && ctx.method !== 'GET') return next();
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/* istanbul ignore if */
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if (ctx.path[0] !== '/') return next();
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const content = options[ctx.path];
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if (!content) return next();
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// '/favicon.ico': 'https://eggjs.org/favicon.ico',
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// content is url
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if (typeof content === 'string') return ctx.redirect(content);
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// '/robots.txt': Buffer <xx..
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// content is buffer
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if (Buffer.isBuffer(content)) {
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ctx.set('cache-control', MAX_AGE);
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ctx.body = content;
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ctx.type = path.extname(ctx.path);
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return;
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}
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return next();
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};
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};
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