1 // Copyright (C) The Arvados Authors. All rights reserved.
3 // SPDX-License-Identifier: AGPL-3.0
15 "git.curoverse.com/arvados.git/sdk/go/arvados"
16 "git.curoverse.com/arvados.git/sdk/go/httpserver"
19 const rfc3339NanoFixed = "2006-01-02T15:04:05.000000000Z07:00"
21 type responseOptions struct {
26 func (rtr *router) responseOptions(opts interface{}) (responseOptions, error) {
27 var rOpts responseOptions
28 switch opts := opts.(type) {
29 case *arvados.GetOptions:
30 rOpts.Select = opts.Select
31 case *arvados.ListOptions:
32 rOpts.Select = opts.Select
33 rOpts.Count = opts.Count
38 func applySelectParam(selectParam []string, orig map[string]interface{}) map[string]interface{} {
39 if len(selectParam) == 0 {
42 selected := map[string]interface{}{}
43 for _, attr := range selectParam {
44 if v, ok := orig[attr]; ok {
48 // Preserve "kind" even if not requested
49 if v, ok := orig["kind"]; ok {
55 func (rtr *router) sendResponse(w http.ResponseWriter, req *http.Request, resp interface{}, opts responseOptions) {
56 var tmp map[string]interface{}
58 if resp, ok := resp.(http.Handler); ok {
59 // resp knows how to write its own http response
61 resp.ServeHTTP(w, req)
65 err := rtr.transcode(resp, &tmp)
71 respKind := kind(resp)
73 tmp["kind"] = respKind
76 if strings.HasSuffix(respKind, "List") {
77 defaultItemKind = strings.TrimSuffix(respKind, "List")
80 if items, ok := tmp["items"].([]interface{}); ok {
81 for i, item := range items {
82 // Fill in "kind" by inspecting UUID/PDH if
83 // possible; fall back on assuming each
84 // Items[] entry in an "arvados#fooList"
85 // response should have kind="arvados#foo".
86 item, _ := item.(map[string]interface{})
88 if uuid, _ := item["uuid"].(string); len(uuid) == 27 {
91 if k := kind(infixMap[infix]); k != "" {
93 } else if pdh, _ := item["portable_data_hash"].(string); pdh != "" {
94 item["kind"] = "arvados#collection"
95 } else if defaultItemKind != "" {
96 item["kind"] = defaultItemKind
98 items[i] = applySelectParam(opts.Select, item)
100 if opts.Count == "none" {
101 delete(tmp, "items_available")
104 tmp = applySelectParam(opts.Select, tmp)
107 // Format non-nil timestamps as rfc3339NanoFixed (by default
108 // they will have been encoded to time.RFC3339Nano, which
109 // omits trailing zeroes).
110 for k, v := range tmp {
111 if !strings.HasSuffix(k, "_at") {
114 switch tv := v.(type) {
119 tmp[k] = tv.Format(rfc3339NanoFixed)
121 tmp[k] = tv.Format(rfc3339NanoFixed)
123 t, err := time.Parse(time.RFC3339Nano, tv)
127 tmp[k] = t.Format(rfc3339NanoFixed)
130 w.Header().Set("Content-Type", "application/json")
131 enc := json.NewEncoder(w)
132 enc.SetEscapeHTML(false)
136 func (rtr *router) sendError(w http.ResponseWriter, err error) {
137 code := http.StatusInternalServerError
138 if err, ok := err.(interface{ HTTPStatus() int }); ok {
139 code = err.HTTPStatus()
141 httpserver.Error(w, err.Error(), code)
144 var infixMap = map[string]interface{}{
145 "4zz18": arvados.Collection{},
146 "j7d0g": arvados.Group{},
149 var mungeKind = regexp.MustCompile(`\..`)
151 func kind(resp interface{}) string {
152 t := fmt.Sprintf("%T", resp)
153 if !strings.HasPrefix(t, "arvados.") {
156 return mungeKind.ReplaceAllStringFunc(t, func(s string) string {
157 // "arvados.CollectionList" => "arvados#collectionList"
158 return "#" + strings.ToLower(s[1:])