func getRequestOptions(r *http.Request) (v2.RequestOptions, error) {
supportedTypes := map[string]bool{
v2.TypeName: true,
v2.TypeDocker: true,
}
// fill in the defaults.
opt := v2.RequestOptions{
IdType: v2.TypeName,
Count: 64,
Recursive: false,
}
idType := r.URL.Query().Get("type")
if len(idType) != 0 {
if !supportedTypes[idType] {
return opt, fmt.Errorf("unknown 'type' %q", idType)
}
opt.IdType = idType
}
count := r.URL.Query().Get("count")
if len(count) != 0 {
n, err := strconv.ParseUint(count, 10, 32)
if err != nil {
return opt, fmt.Errorf("failed to parse 'count' option: %v", count)
}
opt.Count = int(n)
}
recursive := r.URL.Query().Get("recursive")
if recursive == "true" {
opt.Recursive = true
}
return opt, nil
}
