1 // Copyright (C) The Arvados Authors. All rights reserved.
3 // SPDX-License-Identifier: AGPL-3.0
19 "git.arvados.org/arvados.git/lib/config"
20 "git.arvados.org/arvados.git/lib/controller/localdb"
21 "git.arvados.org/arvados.git/lib/controller/rpc"
22 "git.arvados.org/arvados.git/sdk/go/arvados"
23 "git.arvados.org/arvados.git/sdk/go/auth"
24 "git.arvados.org/arvados.git/sdk/go/ctxlog"
28 cluster *arvados.Cluster
30 remotes map[string]backend
33 func New(cluster *arvados.Cluster) *Conn {
34 local := localdb.NewConn(cluster)
35 remotes := map[string]backend{}
36 for id, remote := range cluster.RemoteClusters {
37 if !remote.Proxy || id == cluster.ClusterID {
40 conn := rpc.NewConn(id, &url.URL{Scheme: remote.Scheme, Host: remote.Host}, remote.Insecure, saltedTokenProvider(local, id))
41 // Older versions of controller rely on the Via header
43 conn.SendHeader = http.Header{"Via": {"HTTP/1.1 arvados-controller"}}
54 // Return a new rpc.TokenProvider that takes the client-provided
55 // tokens from an incoming request context, determines whether they
56 // should (and can) be salted for the given remoteID, and returns the
58 func saltedTokenProvider(local backend, remoteID string) rpc.TokenProvider {
59 return func(ctx context.Context) ([]string, error) {
61 incoming, ok := auth.FromContext(ctx)
63 return nil, errors.New("no token provided")
65 for _, token := range incoming.Tokens {
66 salted, err := auth.SaltToken(token, remoteID)
69 tokens = append(tokens, salted)
71 tokens = append(tokens, token)
72 case auth.ErrObsoleteToken:
73 ctx := auth.NewContext(ctx, &auth.Credentials{Tokens: []string{token}})
74 aca, err := local.APIClientAuthorizationCurrent(ctx, arvados.GetOptions{})
75 if errStatus(err) == http.StatusUnauthorized {
76 // pass through unmodified
77 tokens = append(tokens, token)
79 } else if err != nil {
82 if strings.HasPrefix(aca.UUID, remoteID) {
83 // We have it cached here, but
84 // the token belongs to the
85 // remote target itself, so
86 // pass it through unmodified.
87 tokens = append(tokens, token)
90 salted, err := auth.SaltToken(aca.TokenV2(), remoteID)
94 tokens = append(tokens, salted)
103 // Return suitable backend for a query about the given cluster ID
104 // ("aaaaa") or object UUID ("aaaaa-dz642-abcdefghijklmno").
105 func (conn *Conn) chooseBackend(id string) backend {
108 } else if len(id) != 5 {
112 if id == conn.cluster.ClusterID {
114 } else if be, ok := conn.remotes[id]; ok {
117 // TODO: return an "always error" backend?
122 func (conn *Conn) localOrLoginCluster() backend {
123 if conn.cluster.Login.LoginCluster != "" {
124 return conn.chooseBackend(conn.cluster.Login.LoginCluster)
129 // Call fn with the local backend; then, if fn returned 404, call fn
130 // on the available remote backends (possibly concurrently) until one
133 // The second argument to fn is the cluster ID of the remote backend,
134 // or "" for the local backend.
136 // A non-nil error means all backends failed.
137 func (conn *Conn) tryLocalThenRemotes(ctx context.Context, forwardedFor string, fn func(context.Context, string, backend) error) error {
138 if err := fn(ctx, "", conn.local); err == nil || errStatus(err) != http.StatusNotFound || forwardedFor != "" {
139 // Note: forwardedFor != "" means this request came
140 // from a remote cluster, so we don't take a second
141 // hop. This avoids cycles, redundant calls to a
142 // mutually reachable remote, and use of double-salted
147 ctx, cancel := context.WithCancel(ctx)
149 errchan := make(chan error, len(conn.remotes))
150 for remoteID, be := range conn.remotes {
151 remoteID, be := remoteID, be
153 errchan <- fn(ctx, remoteID, be)
158 for i := 0; i < cap(errchan); i++ {
163 all404 = all404 && errStatus(err) == http.StatusNotFound
164 errs = append(errs, err)
167 return notFoundError{}
169 return httpErrorf(http.StatusBadGateway, "errors: %v", errs)
172 func (conn *Conn) CollectionCreate(ctx context.Context, options arvados.CreateOptions) (arvados.Collection, error) {
173 return conn.chooseBackend(options.ClusterID).CollectionCreate(ctx, options)
176 func (conn *Conn) CollectionUpdate(ctx context.Context, options arvados.UpdateOptions) (arvados.Collection, error) {
177 return conn.chooseBackend(options.UUID).CollectionUpdate(ctx, options)
180 func rewriteManifest(mt, remoteID string) string {
181 return regexp.MustCompile(` [0-9a-f]{32}\+[^ ]*`).ReplaceAllStringFunc(mt, func(tok string) string {
182 return strings.Replace(tok, "+A", "+R"+remoteID+"-", -1)
186 func (conn *Conn) ConfigGet(ctx context.Context) (json.RawMessage, error) {
188 err := config.ExportJSON(&buf, conn.cluster)
189 return json.RawMessage(buf.Bytes()), err
192 func (conn *Conn) Login(ctx context.Context, options arvados.LoginOptions) (arvados.LoginResponse, error) {
193 if id := conn.cluster.Login.LoginCluster; id != "" && id != conn.cluster.ClusterID {
194 // defer entire login procedure to designated cluster
195 remote, ok := conn.remotes[id]
197 return arvados.LoginResponse{}, fmt.Errorf("configuration problem: designated login cluster %q is not defined", id)
199 baseURL := remote.BaseURL()
200 target, err := baseURL.Parse(arvados.EndpointLogin.Path)
202 return arvados.LoginResponse{}, fmt.Errorf("internal error getting redirect target: %s", err)
204 params := url.Values{
205 "return_to": []string{options.ReturnTo},
207 if options.Remote != "" {
208 params.Set("remote", options.Remote)
210 target.RawQuery = params.Encode()
211 return arvados.LoginResponse{
212 RedirectLocation: target.String(),
215 return conn.local.Login(ctx, options)
218 func (conn *Conn) Logout(ctx context.Context, options arvados.LogoutOptions) (arvados.LogoutResponse, error) {
219 // If the logout request comes with an API token from a known
220 // remote cluster, redirect to that cluster's logout handler
221 // so it has an opportunity to clear sessions, expire tokens,
222 // etc. Otherwise use the local endpoint.
223 reqauth, ok := auth.FromContext(ctx)
224 if !ok || len(reqauth.Tokens) == 0 || len(reqauth.Tokens[0]) < 8 || !strings.HasPrefix(reqauth.Tokens[0], "v2/") {
225 return conn.local.Logout(ctx, options)
227 id := reqauth.Tokens[0][3:8]
228 if id == conn.cluster.ClusterID {
229 return conn.local.Logout(ctx, options)
231 remote, ok := conn.remotes[id]
233 return conn.local.Logout(ctx, options)
235 baseURL := remote.BaseURL()
236 target, err := baseURL.Parse(arvados.EndpointLogout.Path)
238 return arvados.LogoutResponse{}, fmt.Errorf("internal error getting redirect target: %s", err)
240 target.RawQuery = url.Values{"return_to": {options.ReturnTo}}.Encode()
241 return arvados.LogoutResponse{RedirectLocation: target.String()}, nil
244 func (conn *Conn) CollectionGet(ctx context.Context, options arvados.GetOptions) (arvados.Collection, error) {
245 if len(options.UUID) == 27 {
246 // UUID is really a UUID
247 c, err := conn.chooseBackend(options.UUID).CollectionGet(ctx, options)
248 if err == nil && options.UUID[:5] != conn.cluster.ClusterID {
249 c.ManifestText = rewriteManifest(c.ManifestText, options.UUID[:5])
254 first := make(chan arvados.Collection, 1)
255 err := conn.tryLocalThenRemotes(ctx, options.ForwardedFor, func(ctx context.Context, remoteID string, be backend) error {
256 remoteOpts := options
257 remoteOpts.ForwardedFor = conn.cluster.ClusterID + "-" + options.ForwardedFor
258 c, err := be.CollectionGet(ctx, remoteOpts)
262 // options.UUID is either hash+size or
263 // hash+size+hints; only hash+size need to
264 // match the computed PDH.
265 if pdh := arvados.PortableDataHash(c.ManifestText); pdh != options.UUID && !strings.HasPrefix(options.UUID, pdh+"+") {
266 err = httpErrorf(http.StatusBadGateway, "bad portable data hash %q received from remote %q (expected %q)", pdh, remoteID, options.UUID)
267 ctxlog.FromContext(ctx).Warn(err)
271 c.ManifestText = rewriteManifest(c.ManifestText, remoteID)
277 // lost race, return value doesn't matter
282 return arvados.Collection{}, err
287 func (conn *Conn) CollectionList(ctx context.Context, options arvados.ListOptions) (arvados.CollectionList, error) {
288 return conn.generated_CollectionList(ctx, options)
291 func (conn *Conn) CollectionProvenance(ctx context.Context, options arvados.GetOptions) (map[string]interface{}, error) {
292 return conn.chooseBackend(options.UUID).CollectionProvenance(ctx, options)
295 func (conn *Conn) CollectionUsedBy(ctx context.Context, options arvados.GetOptions) (map[string]interface{}, error) {
296 return conn.chooseBackend(options.UUID).CollectionUsedBy(ctx, options)
299 func (conn *Conn) CollectionDelete(ctx context.Context, options arvados.DeleteOptions) (arvados.Collection, error) {
300 return conn.chooseBackend(options.UUID).CollectionDelete(ctx, options)
303 func (conn *Conn) CollectionTrash(ctx context.Context, options arvados.DeleteOptions) (arvados.Collection, error) {
304 return conn.chooseBackend(options.UUID).CollectionTrash(ctx, options)
307 func (conn *Conn) CollectionUntrash(ctx context.Context, options arvados.UntrashOptions) (arvados.Collection, error) {
308 return conn.chooseBackend(options.UUID).CollectionUntrash(ctx, options)
311 func (conn *Conn) ContainerList(ctx context.Context, options arvados.ListOptions) (arvados.ContainerList, error) {
312 return conn.generated_ContainerList(ctx, options)
315 func (conn *Conn) ContainerCreate(ctx context.Context, options arvados.CreateOptions) (arvados.Container, error) {
316 return conn.chooseBackend(options.ClusterID).ContainerCreate(ctx, options)
319 func (conn *Conn) ContainerUpdate(ctx context.Context, options arvados.UpdateOptions) (arvados.Container, error) {
320 return conn.chooseBackend(options.UUID).ContainerUpdate(ctx, options)
323 func (conn *Conn) ContainerGet(ctx context.Context, options arvados.GetOptions) (arvados.Container, error) {
324 return conn.chooseBackend(options.UUID).ContainerGet(ctx, options)
327 func (conn *Conn) ContainerDelete(ctx context.Context, options arvados.DeleteOptions) (arvados.Container, error) {
328 return conn.chooseBackend(options.UUID).ContainerDelete(ctx, options)
331 func (conn *Conn) ContainerLock(ctx context.Context, options arvados.GetOptions) (arvados.Container, error) {
332 return conn.chooseBackend(options.UUID).ContainerLock(ctx, options)
335 func (conn *Conn) ContainerUnlock(ctx context.Context, options arvados.GetOptions) (arvados.Container, error) {
336 return conn.chooseBackend(options.UUID).ContainerUnlock(ctx, options)
339 func (conn *Conn) SpecimenList(ctx context.Context, options arvados.ListOptions) (arvados.SpecimenList, error) {
340 return conn.generated_SpecimenList(ctx, options)
343 func (conn *Conn) SpecimenCreate(ctx context.Context, options arvados.CreateOptions) (arvados.Specimen, error) {
344 return conn.chooseBackend(options.ClusterID).SpecimenCreate(ctx, options)
347 func (conn *Conn) SpecimenUpdate(ctx context.Context, options arvados.UpdateOptions) (arvados.Specimen, error) {
348 return conn.chooseBackend(options.UUID).SpecimenUpdate(ctx, options)
351 func (conn *Conn) SpecimenGet(ctx context.Context, options arvados.GetOptions) (arvados.Specimen, error) {
352 return conn.chooseBackend(options.UUID).SpecimenGet(ctx, options)
355 func (conn *Conn) SpecimenDelete(ctx context.Context, options arvados.DeleteOptions) (arvados.Specimen, error) {
356 return conn.chooseBackend(options.UUID).SpecimenDelete(ctx, options)
359 var userAttrsCachedFromLoginCluster = map[string]bool{
372 "identity_url": false,
374 "modified_by_client_uuid": false,
375 "modified_by_user_uuid": false,
378 "writable_by": false,
381 func (conn *Conn) batchUpdateUsers(ctx context.Context,
382 options arvados.ListOptions,
383 items []arvados.User) (err error) {
385 id := conn.cluster.Login.LoginCluster
386 logger := ctxlog.FromContext(ctx)
387 batchOpts := arvados.UserBatchUpdateOptions{Updates: map[string]map[string]interface{}{}}
388 for _, user := range items {
389 if !strings.HasPrefix(user.UUID, id) {
392 logger.Debugf("cache user info for uuid %q", user.UUID)
394 // If the remote cluster has null timestamps
395 // (e.g., test server with incomplete
396 // fixtures) use dummy timestamps (instead of
397 // the zero time, which causes a Rails API
398 // error "year too big to marshal: 1 UTC").
399 if user.ModifiedAt.IsZero() {
400 user.ModifiedAt = time.Now()
402 if user.CreatedAt.IsZero() {
403 user.CreatedAt = time.Now()
406 var allFields map[string]interface{}
407 buf, err := json.Marshal(user)
409 return fmt.Errorf("error encoding user record from remote response: %s", err)
411 err = json.Unmarshal(buf, &allFields)
413 return fmt.Errorf("error transcoding user record from remote response: %s", err)
416 if len(options.Select) > 0 {
417 updates = map[string]interface{}{}
418 for _, k := range options.Select {
419 if v, ok := allFields[k]; ok && userAttrsCachedFromLoginCluster[k] {
424 for k := range updates {
425 if !userAttrsCachedFromLoginCluster[k] {
430 batchOpts.Updates[user.UUID] = updates
432 if len(batchOpts.Updates) > 0 {
433 ctxRoot := auth.NewContext(ctx, &auth.Credentials{Tokens: []string{conn.cluster.SystemRootToken}})
434 _, err = conn.local.UserBatchUpdate(ctxRoot, batchOpts)
436 return fmt.Errorf("error updating local user records: %s", err)
442 func (conn *Conn) UserList(ctx context.Context, options arvados.ListOptions) (arvados.UserList, error) {
443 if id := conn.cluster.Login.LoginCluster; id != "" && id != conn.cluster.ClusterID && !options.BypassFederation {
444 resp, err := conn.chooseBackend(id).UserList(ctx, options)
448 err = conn.batchUpdateUsers(ctx, options, resp.Items)
450 return arvados.UserList{}, err
454 return conn.generated_UserList(ctx, options)
457 func (conn *Conn) UserCreate(ctx context.Context, options arvados.CreateOptions) (arvados.User, error) {
458 return conn.chooseBackend(options.ClusterID).UserCreate(ctx, options)
461 func (conn *Conn) UserUpdate(ctx context.Context, options arvados.UpdateOptions) (arvados.User, error) {
462 if options.BypassFederation {
463 return conn.local.UserUpdate(ctx, options)
465 return conn.chooseBackend(options.UUID).UserUpdate(ctx, options)
468 func (conn *Conn) UserUpdateUUID(ctx context.Context, options arvados.UpdateUUIDOptions) (arvados.User, error) {
469 return conn.local.UserUpdateUUID(ctx, options)
472 func (conn *Conn) UserMerge(ctx context.Context, options arvados.UserMergeOptions) (arvados.User, error) {
473 return conn.local.UserMerge(ctx, options)
476 func (conn *Conn) UserActivate(ctx context.Context, options arvados.UserActivateOptions) (arvados.User, error) {
477 return conn.localOrLoginCluster().UserActivate(ctx, options)
480 func (conn *Conn) UserSetup(ctx context.Context, options arvados.UserSetupOptions) (map[string]interface{}, error) {
481 upstream := conn.localOrLoginCluster()
482 if upstream != conn.local {
483 // When LoginCluster is in effect, and we're setting
484 // up a remote user, and we want to give that user
485 // access to a local VM, we can't include the VM in
486 // the setup call, because the remote cluster won't
489 // Similarly, if we want to create a git repo,
490 // it should be created on the local cluster,
491 // not the remote one.
493 upstreamOptions := options
494 upstreamOptions.VMUUID = ""
495 upstreamOptions.RepoName = ""
497 ret, err := upstream.UserSetup(ctx, upstreamOptions)
503 return conn.local.UserSetup(ctx, options)
506 func (conn *Conn) UserUnsetup(ctx context.Context, options arvados.GetOptions) (arvados.User, error) {
507 return conn.localOrLoginCluster().UserUnsetup(ctx, options)
510 func (conn *Conn) UserGet(ctx context.Context, options arvados.GetOptions) (arvados.User, error) {
511 resp, err := conn.chooseBackend(options.UUID).UserGet(ctx, options)
515 if options.UUID != resp.UUID {
516 return arvados.User{}, httpErrorf(http.StatusBadGateway, "Had requested %v but response was for %v", options.UUID, resp.UUID)
518 if options.UUID[:5] != conn.cluster.ClusterID {
519 err = conn.batchUpdateUsers(ctx, arvados.ListOptions{Select: options.Select}, []arvados.User{resp})
521 return arvados.User{}, err
527 func (conn *Conn) UserGetCurrent(ctx context.Context, options arvados.GetOptions) (arvados.User, error) {
528 return conn.local.UserGetCurrent(ctx, options)
531 func (conn *Conn) UserGetSystem(ctx context.Context, options arvados.GetOptions) (arvados.User, error) {
532 return conn.chooseBackend(options.UUID).UserGetSystem(ctx, options)
535 func (conn *Conn) UserDelete(ctx context.Context, options arvados.DeleteOptions) (arvados.User, error) {
536 return conn.chooseBackend(options.UUID).UserDelete(ctx, options)
539 func (conn *Conn) UserBatchUpdate(ctx context.Context, options arvados.UserBatchUpdateOptions) (arvados.UserList, error) {
540 return conn.local.UserBatchUpdate(ctx, options)
543 func (conn *Conn) UserAuthenticate(ctx context.Context, options arvados.UserAuthenticateOptions) (arvados.APIClientAuthorization, error) {
544 return conn.local.UserAuthenticate(ctx, options)
547 func (conn *Conn) APIClientAuthorizationCurrent(ctx context.Context, options arvados.GetOptions) (arvados.APIClientAuthorization, error) {
548 return conn.chooseBackend(options.UUID).APIClientAuthorizationCurrent(ctx, options)
551 type backend interface {
556 type notFoundError struct{}
558 func (notFoundError) HTTPStatus() int { return http.StatusNotFound }
559 func (notFoundError) Error() string { return "not found" }
561 func errStatus(err error) int {
562 if httpErr, ok := err.(interface{ HTTPStatus() int }); ok {
563 return httpErr.HTTPStatus()
565 return http.StatusInternalServerError