1 // Copyright (C) The Arvados Authors. All rights reserved.
3 // SPDX-License-Identifier: AGPL-3.0
16 "git.arvados.org/arvados.git/lib/controller/api"
17 "git.arvados.org/arvados.git/lib/controller/federation"
18 "git.arvados.org/arvados.git/lib/controller/localdb"
19 "git.arvados.org/arvados.git/lib/controller/railsproxy"
20 "git.arvados.org/arvados.git/lib/controller/router"
21 "git.arvados.org/arvados.git/lib/ctrlctx"
22 "git.arvados.org/arvados.git/sdk/go/arvados"
23 "git.arvados.org/arvados.git/sdk/go/health"
24 "git.arvados.org/arvados.git/sdk/go/httpserver"
26 // sqlx needs lib/pq to talk to PostgreSQL
31 Cluster *arvados.Cluster
32 BackgroundContext context.Context
35 federation *federation.Conn
36 handlerStack http.Handler
38 secureClient *http.Client
39 insecureClient *http.Client
40 dbConnector ctrlctx.DBConnector
43 func (h *Handler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
44 h.setupOnce.Do(h.setup)
45 if req.Method != "GET" && req.Method != "HEAD" {
46 // http.ServeMux returns 301 with a cleaned path if
47 // the incoming request has a double slash. Some
48 // clients (including the Go standard library) change
49 // the request method to GET when following a 301
50 // redirect if the original method was not HEAD
51 // (RFC7231 6.4.2 specifically allows this in the case
52 // of POST). Thus "POST //foo" gets misdirected to
53 // "GET /foo". To avoid this, eliminate double slashes
54 // before passing the request to ServeMux.
55 for strings.Contains(req.URL.Path, "//") {
56 req.URL.Path = strings.Replace(req.URL.Path, "//", "/", -1)
59 h.handlerStack.ServeHTTP(w, req)
62 func (h *Handler) CheckHealth() error {
63 h.setupOnce.Do(h.setup)
64 _, err := h.dbConnector.GetDB(context.TODO())
68 _, _, err = railsproxy.FindRailsAPI(h.Cluster)
72 if h.Cluster.API.VocabularyPath != "" {
73 req, err := http.NewRequest("GET", "/arvados/v1/vocabulary", nil)
77 var resp httptest.ResponseRecorder
78 h.handlerStack.ServeHTTP(&resp, req)
79 if resp.Result().StatusCode != http.StatusOK {
80 return fmt.Errorf("%d %s", resp.Result().StatusCode, resp.Result().Status)
86 func (h *Handler) Done() <-chan struct{} {
90 func neverRedirect(*http.Request, []*http.Request) error { return http.ErrUseLastResponse }
92 func (h *Handler) setup() {
93 mux := http.NewServeMux()
94 healthFuncs := make(map[string]health.Func)
96 h.dbConnector = ctrlctx.DBConnector{PostgreSQL: h.Cluster.PostgreSQL}
98 <-h.BackgroundContext.Done()
101 oidcAuthorizer := localdb.OIDCAccessTokenAuthorizer(h.Cluster, h.dbConnector.GetDB)
102 h.federation = federation.New(h.BackgroundContext, h.Cluster, &healthFuncs, h.dbConnector.GetDB)
103 rtr := router.New(h.federation, router.Config{
104 MaxRequestSize: h.Cluster.API.MaxRequestSize,
105 WrapCalls: api.ComposeWrappers(
106 ctrlctx.WrapCallsInTransactions(h.dbConnector.GetDB),
107 oidcAuthorizer.WrapCalls,
108 ctrlctx.WrapCallsWithAuth(h.Cluster)),
111 healthRoutes := health.Routes{"ping": func() error { _, err := h.dbConnector.GetDB(context.TODO()); return err }}
112 for name, f := range healthFuncs {
113 healthRoutes[name] = f
115 mux.Handle("/_health/", &health.Handler{
116 Token: h.Cluster.ManagementToken,
118 Routes: healthRoutes,
120 mux.Handle("/arvados/v1/config", rtr)
121 mux.Handle("/arvados/v1/vocabulary", rtr)
122 mux.Handle("/"+arvados.EndpointUserAuthenticate.Path, rtr) // must come before .../users/
123 mux.Handle("/arvados/v1/collections", rtr)
124 mux.Handle("/arvados/v1/collections/", rtr)
125 mux.Handle("/arvados/v1/users", rtr)
126 mux.Handle("/arvados/v1/users/", rtr)
127 mux.Handle("/arvados/v1/connect/", rtr)
128 mux.Handle("/arvados/v1/container_requests", rtr)
129 mux.Handle("/arvados/v1/container_requests/", rtr)
130 mux.Handle("/arvados/v1/groups", rtr)
131 mux.Handle("/arvados/v1/groups/", rtr)
132 mux.Handle("/arvados/v1/links", rtr)
133 mux.Handle("/arvados/v1/links/", rtr)
134 mux.Handle("/login", rtr)
135 mux.Handle("/logout", rtr)
136 mux.Handle("/arvados/v1/api_client_authorizations", rtr)
137 mux.Handle("/arvados/v1/api_client_authorizations/", rtr)
139 hs := http.NotFoundHandler()
140 hs = prepend(hs, h.proxyRailsAPI)
141 hs = h.setupProxyRemoteCluster(hs)
142 hs = prepend(hs, oidcAuthorizer.Middleware)
146 sc := *arvados.DefaultSecureClient
147 sc.CheckRedirect = neverRedirect
150 ic := *arvados.InsecureHTTPClient
151 ic.CheckRedirect = neverRedirect
152 h.insecureClient = &ic
155 Name: "arvados-controller",
158 go h.trashSweepWorker()
159 go h.containerLogSweepWorker()
162 type middlewareFunc func(http.ResponseWriter, *http.Request, http.Handler)
164 func prepend(next http.Handler, middleware middlewareFunc) http.Handler {
165 return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
166 middleware(w, req, next)
170 func (h *Handler) localClusterRequest(req *http.Request) (*http.Response, error) {
171 urlOut, insecure, err := railsproxy.FindRailsAPI(h.Cluster)
176 Scheme: urlOut.Scheme,
179 RawPath: req.URL.RawPath,
180 RawQuery: req.URL.RawQuery,
182 client := h.secureClient
184 client = h.insecureClient
186 return h.proxy.Do(req, urlOut, client)
189 func (h *Handler) proxyRailsAPI(w http.ResponseWriter, req *http.Request, next http.Handler) {
190 resp, err := h.localClusterRequest(req)
191 n, err := h.proxy.ForwardResponse(w, resp, err)
193 httpserver.Logger(req).WithError(err).WithField("bytesCopied", n).Error("error copying response body")
197 // Use a localhost entry from Services.RailsAPI.InternalURLs if one is
198 // present, otherwise choose an arbitrary entry.
199 func findRailsAPI(cluster *arvados.Cluster) (*url.URL, bool, error) {
201 for target := range cluster.Services.RailsAPI.InternalURLs {
202 target := url.URL(target)
204 if strings.HasPrefix(target.Host, "localhost:") || strings.HasPrefix(target.Host, "127.0.0.1:") || strings.HasPrefix(target.Host, "[::1]:") {
209 return nil, false, fmt.Errorf("Services.RailsAPI.InternalURLs is empty")
211 return best, cluster.TLS.Insecure, nil