( rawBase: string, middlewareMode: boolean, )
| 5 | // this middleware is only active when (base !== '/') |
| 6 | |
| 7 | export function baseMiddleware( |
| 8 | rawBase: string, |
| 9 | middlewareMode: boolean, |
| 10 | ): Connect.NextHandleFunction { |
| 11 | // Keep the named function. The name is visible in debug logs via `DEBUG=connect:dispatcher ...` |
| 12 | return function viteBaseMiddleware(req, res, next) { |
| 13 | const url = req.url! |
| 14 | const pathname = cleanUrl(url) |
| 15 | const base = rawBase |
| 16 | |
| 17 | if (pathname.startsWith(base)) { |
| 18 | // rewrite url to remove base. this ensures that other middleware does |
| 19 | // not need to consider base being prepended or not |
| 20 | req.url = stripBase(url, base) |
| 21 | return next() |
| 22 | } |
| 23 | |
| 24 | // skip redirect and error fallback on middleware mode, #4057 |
| 25 | if (middlewareMode) { |
| 26 | return next() |
| 27 | } |
| 28 | |
| 29 | if (pathname === '/' || pathname === '/index.html') { |
| 30 | // redirect root visit to based url with search and hash |
| 31 | res.writeHead(302, { |
| 32 | Location: base + url.slice(pathname.length), |
| 33 | }) |
| 34 | res.end() |
| 35 | return |
| 36 | } |
| 37 | |
| 38 | // non-based page visit |
| 39 | const redirectPath = |
| 40 | withTrailingSlash(url) !== base ? joinUrlSegments(base, url) : base |
| 41 | if (req.headers.accept?.includes('text/html')) { |
| 42 | res.writeHead(404, { |
| 43 | 'Content-Type': 'text/html', |
| 44 | }) |
| 45 | res.end( |
| 46 | `The server is configured with a public base URL of ${base} - ` + |
| 47 | `did you mean to visit <a href="${redirectPath}">${redirectPath}</a> instead?`, |
| 48 | ) |
| 49 | return |
| 50 | } else { |
| 51 | // not found for resources |
| 52 | res.writeHead(404, { |
| 53 | 'Content-Type': 'text/plain', |
| 54 | }) |
| 55 | res.end( |
| 56 | `The server is configured with a public base URL of ${base} - ` + |
| 57 | `did you mean to visit ${redirectPath} instead?`, |
| 58 | ) |
| 59 | return |
| 60 | } |
| 61 | } |
| 62 | } |
no test coverage detected