axamon/hermes

// Copyright 2019 Alberto Bregliano. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package manifest

import (
//    "net/http"
    "net/url"
    "regexp"
    "strings"
)

var isDash = regexp.MustCompile(`(?m)\.mpd$`)
var isSS = regexp.MustCompile(`(?m)^.*\.ism`)

// Find restituisce la url del manifest per la url passata come argomento.
func Find(rawurl string) (urlmanifest string, err error) {

    // serve a rendere gestibili le url encodate
    if strings.Contains(rawurl, "%") {
        rawurl, err = url.QueryUnescape(rawurl)
        if err != nil {
            return "", err
        }
    }

    //rawurlbyte := []byte(decodedurl)

    // gestione dei dash
    if isDash.MatchString(rawurl) {
        urlmanifest = rawurl
    }

    // gestione degli SmoothStreaming
    if isSS.MatchString(rawurl) {
        urlmanifest = isSS.FindString(rawurl) + "/Manifest"
    }

    return urlmanifest, err
}

// IsManifestReachable esegue un curl HEAD sul manifest passato come argomento.
// func IsManifestReachable(urlmanifest string) error {
//     _, err := http.Head(urlmanifest)
//     return err
// }