45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
// Package extensions contains middleware for clean URLs.
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//
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// The root path of the site is passed in as well as possible extensions
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// to try internally for paths requested that don't match an existing
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// resource. The first path+ext combination that matches a valid file
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// will be used.
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package extensions
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import (
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"net/http"
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"os"
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"path"
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"strings"
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"github.com/mholt/caddy/caddyhttp/httpserver"
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)
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// Ext can assume an extension from clean URLs.
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// It tries extensions in the order listed in Extensions.
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type Ext struct {
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// Next handler in the chain
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Next httpserver.Handler
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// Path to site root
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Root string
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// List of extensions to try
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Extensions []string
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}
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// ServeHTTP implements the httpserver.Handler interface.
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func (e Ext) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
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urlpath := strings.TrimSuffix(r.URL.Path, "/")
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if len(r.URL.Path) > 0 && path.Ext(urlpath) == "" && r.URL.Path[len(r.URL.Path)-1] != '/' {
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for _, ext := range e.Extensions {
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_, err := os.Stat(httpserver.SafePath(e.Root, urlpath) + ext)
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if err == nil {
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r.URL.Path = urlpath + ext
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break
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}
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}
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}
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return e.Next.ServeHTTP(w, r)
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}
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