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71 lines
2.1 KiB
71 lines
2.1 KiB
package handle
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import (
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"net/http"
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"strings"
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)
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var (
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// These assignments are for unit testing.
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listenAndServe = http.ListenAndServe
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listenAndServeTLS = http.ListenAndServeTLS
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setHandler = http.HandleFunc
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)
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var (
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server http.Server
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)
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// ListenerFunc accepts the {hostname:port} binding string required by HTTP
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// listeners and the handler (router) function and returns any errors that
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// occur.
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type ListenerFunc func(string, http.HandlerFunc) error
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// Basic file handler servers files from the passed folder.
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func Basic(folder string) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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http.ServeFile(w, r, folder+r.URL.Path)
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}
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}
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// Prefix file handler is an alternative to Basic where a URL prefix is removed
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// prior to serving a file (http://my.machine/prefix/file.txt will serve
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// file.txt from the root of the folder being served (ignoring 'prefix')).
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func Prefix(folder, urlPrefix string) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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if !strings.HasPrefix(r.URL.Path, urlPrefix) {
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http.NotFound(w, r)
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return
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}
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http.ServeFile(w, r, folder+strings.TrimPrefix(r.URL.Path, urlPrefix))
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}
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}
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// IgnoreIndex wraps an HTTP request. In the event of a folder root request,
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// this function will automatically return 'NOT FOUND' as opposed to default
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// behavior where the index file for that directory is retrieved.
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func IgnoreIndex(serve http.HandlerFunc) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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if strings.HasSuffix(r.URL.Path, "/") {
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http.NotFound(w, r)
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return
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}
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serve(w, r)
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}
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}
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// Listening function for serving the handler function.
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func Listening() ListenerFunc {
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return func(binding string, handler http.HandlerFunc) error {
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setHandler("/", handler)
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return listenAndServe(binding, nil)
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}
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}
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// TLSListening function for serving the handler function with encryption.
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func TLSListening(tlsCert, tlsKey string) ListenerFunc {
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return func(binding string, handler http.HandlerFunc) error {
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setHandler("/", handler)
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return listenAndServeTLS(binding, tlsCert, tlsKey, nil)
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}
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}
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