mirror of https://github.com/jkjoy/sunpeiwen.git
75 lines
2.6 KiB
JavaScript
75 lines
2.6 KiB
JavaScript
'use strict';
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const pathFn = require('path');
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const mime = require('mime');
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module.exports = function(app) {
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const { config, route } = this;
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const { args = {} } = this.env;
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const { root } = config;
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if (args.s || args.static) return;
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const { pretty_urls } = config;
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const { trailing_index, trailing_html } = pretty_urls ? pretty_urls : {};
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app.use(root, (req, res, next) => {
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const { method, url: requestUrl } = req;
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if (method !== 'GET' && method !== 'HEAD') return next();
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let url = route.format(decodeURIComponent(requestUrl));
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let data = route.get(url);
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let extname = pathFn.extname(url);
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if (!data) {
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if (route.get(url + '.html')) {
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// location `foo/bar.html`; request `foo/bar`; proxy to the location
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extname = '.html';
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data = route.get(url + extname);
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res.setHeader('Content-Type', 'text/html');
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req.url = encodeURI('/' + url + extname);
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data.pipe(res).on('error', next);
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return;
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} else if (route.get(url + '/index.html')) {
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// location `foo/index.html`; request `foo`; redirect to `foo/`
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url = encodeURI(url);
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res.statusCode = 301;
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res.setHeader('Location', `${root + url}/`);
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res.end('Redirecting');
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return;
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} else if (route.get(url.replace(/\/index\.html$/i, '') + '.html')) {
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// location `foo/bar.html`; request `foo/bar/`; redirect to `foo`
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// request with trailing slash is appended with index.html by route.format()
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url = encodeURI(url.replace(/\/index\.html$/i, ''));
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res.statusCode = 301;
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res.setHeader('Location', root + url);
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res.end('Redirecting');
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return;
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} return next();
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}
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if (trailing_html === false && !requestUrl.endsWith('/index.html') && requestUrl.endsWith('.html')) {
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// location `foo/bar.html`; request `foo/bar.html`; redirect to `foo/bar`
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url = encodeURI(url.replace(/\.html$/i, ''));
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res.statusCode = 301;
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res.setHeader('Location', root + url);
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res.end('Redirecting');
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return;
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} else if (trailing_index === false && requestUrl.endsWith('/index.html')) {
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// location `foo/index.html`; request `foo/index.html`; redirect to `foo/`
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url = encodeURI(url.replace(/index\.html$/i, ''));
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res.statusCode = 301;
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res.setHeader('Location', root + url);
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res.end('Redirecting');
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return;
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}
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res.setHeader('Content-Type', extname ? mime.getType(extname) : 'application/octet-stream');
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if (method === 'GET') {
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data.pipe(res).on('error', next);
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} else {
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res.end();
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}
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});
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};
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