// CacheHandler returns a handler that serves HTTP requests
// with the contents of the specified cache.
func CacheHandler(cache *cdc.DiskCache) http.Handler {
handler := &cacheHandler{
DiskCache: cache,
host: make(map[string]bool),
url: make(map[string][]string),
}
for _, ustr := range cache.URLs() {
u, err := url.Parse(ustr)
if err != nil {
continue
}
if len(u.Host) != 0 {
if !handler.host[u.Host] {
handler.host[u.Host] = true
}
handler.url[u.Host] = append(handler.url[u.Host], ustr)
}
}
return handler
}
func openEntry(cache *cdc.DiskCache, url, addr, dir string) *cdc.Entry {
var entry *cdc.Entry
var err error
if addr != "" {
id, era := strconv.ParseUint(addr, 10, 32)
if era != nil {
log.Fatal(era)
}
entry, err = cdc.OpenEntry(cdc.CacheAddr(id), dir)
} else if url != "" {
entry, err = cache.OpenURL(url)
}
if err != nil {
log.Fatal(err)
}
return entry
}