// TODO sort mirrorlist?
func printMirrorList(w http.ResponseWriter, r *http.Request, requestFile mirrorbrain.RequestFile) {
path := requestFile.Path()
servers, err := database.FindServers(path)
if err != nil {
http.Error(w, "internal error", http.StatusInternalServerError)
return
}
mirrorbrain.CreateServerLists(requestFile, ExtractIP(r.RemoteAddr), servers)
fileInfo, err = database.SelectFileInfo(path)
}
func sendRedirect(w http.ResponseWriter, r *http.Request, requestFile mirrorbrain.RequestFile) {
path := requestFile.Path()
servers, err := database.FindServers(path)
if err != nil {
http.Error(w, "internal error", http.StatusInternalServerError)
return
}
dumpServers(servers)
serverSelection := mirrorbrain.ChooseServer(requestFile, ExtractIP(r.RemoteAddr), servers)
if serverSelection.FoundIn != "" {
log.Println("Using server:", serverSelection)
http.Redirect(w, r, serverSelection.Chosen.RedirectUrl(path), http.StatusFound)
} else {
log.Println("No usable mirrors after classification for:", requestFile.Path())
http.NotFound(w, r)
}
}
// We do not support all mirrorbrain output formats. Specifically .torrent is missing
//
// TODO The redirector does not support declining redirects like the original does and isn't able to send files directly.
// * small files cfg->min_size and send file directly instead
// * excluded files cfg->exclude_filemask
// * excluded source ips cfg->exclude_ips
// * excluded network cfg->exclude_networks
// * excluded mime type cfg->exclude_mime
// * excluded user agent cfg->exclude_agents
//
// TODO handle all http methods: head get propfind options, how are they used in mirrorbrain?
func viewHandler(w http.ResponseWriter, r *http.Request) {
absPath := webrootPath(config.WebRoot, r.URL.Path)
requestPath := path.Clean(r.URL.Path)
log.Println(r.RemoteAddr, requestPath, absPath)
if isDir(absPath) {
printDirectoryList(w, absPath, requestPath)
} else if stat, err := os.Stat(absPath); err == nil {
requestFile := mirrorbrain.RequestFile{requestPath, stat}
if requestFile.HasExtension("meta4") {
printMeta4(w, r, requestFile)
} else if requestFile.HasExtension("mirrorlist") {
printMirrorList(w, r, requestFile)
} else if requestFile.HasExtension("sha256") {
http.Error(w, "not implemented", http.StatusInternalServerError)
} else if requestFile.HasExtension("sha1") {
http.Error(w, "not implemented", http.StatusInternalServerError)
} else if requestFile.HasExtension("md5") {
http.Error(w, "not implemented", http.StatusInternalServerError)
} else if requestFile.HasExtension("torrent") {
log.Println("can't handle torrent")
http.Error(w, "not implemented", http.StatusInternalServerError)
} else {
sendRedirect(w, r, requestFile)
}
} else {
http.NotFound(w, r)
}
}