1 // Copyright (C) The Arvados Authors. All rights reserved.
3 // SPDX-License-Identifier: AGPL-3.0
17 "git.arvados.org/arvados.git/lib/controller/api"
18 "git.arvados.org/arvados.git/lib/controller/federation"
19 "git.arvados.org/arvados.git/lib/controller/localdb"
20 "git.arvados.org/arvados.git/lib/controller/railsproxy"
21 "git.arvados.org/arvados.git/lib/controller/router"
22 "git.arvados.org/arvados.git/lib/ctrlctx"
23 "git.arvados.org/arvados.git/sdk/go/arvados"
24 "git.arvados.org/arvados.git/sdk/go/ctxlog"
25 "git.arvados.org/arvados.git/sdk/go/health"
26 "git.arvados.org/arvados.git/sdk/go/httpserver"
27 "github.com/jmoiron/sqlx"
29 // sqlx needs lib/pq to talk to PostgreSQL
34 Cluster *arvados.Cluster
37 handlerStack http.Handler
39 secureClient *http.Client
40 insecureClient *http.Client
45 func (h *Handler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
46 h.setupOnce.Do(h.setup)
47 if req.Method != "GET" && req.Method != "HEAD" {
48 // http.ServeMux returns 301 with a cleaned path if
49 // the incoming request has a double slash. Some
50 // clients (including the Go standard library) change
51 // the request method to GET when following a 301
52 // redirect if the original method was not HEAD
53 // (RFC7231 6.4.2 specifically allows this in the case
54 // of POST). Thus "POST //foo" gets misdirected to
55 // "GET /foo". To avoid this, eliminate double slashes
56 // before passing the request to ServeMux.
57 for strings.Contains(req.URL.Path, "//") {
58 req.URL.Path = strings.Replace(req.URL.Path, "//", "/", -1)
61 if h.Cluster.API.RequestTimeout > 0 {
62 ctx, cancel := context.WithDeadline(req.Context(), time.Now().Add(time.Duration(h.Cluster.API.RequestTimeout)))
63 req = req.WithContext(ctx)
67 h.handlerStack.ServeHTTP(w, req)
70 func (h *Handler) CheckHealth() error {
71 h.setupOnce.Do(h.setup)
72 _, err := h.db(context.TODO())
76 _, _, err = railsproxy.FindRailsAPI(h.Cluster)
80 func (h *Handler) Done() <-chan struct{} {
84 func neverRedirect(*http.Request, []*http.Request) error { return http.ErrUseLastResponse }
86 func (h *Handler) setup() {
87 mux := http.NewServeMux()
88 mux.Handle("/_health/", &health.Handler{
89 Token: h.Cluster.ManagementToken,
91 Routes: health.Routes{"ping": func() error { _, err := h.db(context.TODO()); return err }},
94 oidcAuthorizer := localdb.OIDCAccessTokenAuthorizer(h.Cluster, h.db)
95 rtr := router.New(federation.New(h.Cluster), router.Config{
96 MaxRequestSize: h.Cluster.API.MaxRequestSize,
97 WrapCalls: api.ComposeWrappers(ctrlctx.WrapCallsInTransactions(h.db), oidcAuthorizer.WrapCalls),
99 mux.Handle("/arvados/v1/config", rtr)
100 mux.Handle("/arvados/v1/vocabulary", rtr)
101 mux.Handle("/"+arvados.EndpointUserAuthenticate.Path, rtr) // must come before .../users/
102 mux.Handle("/arvados/v1/collections", rtr)
103 mux.Handle("/arvados/v1/collections/", rtr)
104 mux.Handle("/arvados/v1/users", rtr)
105 mux.Handle("/arvados/v1/users/", rtr)
106 mux.Handle("/arvados/v1/connect/", rtr)
107 mux.Handle("/arvados/v1/container_requests", rtr)
108 mux.Handle("/arvados/v1/container_requests/", rtr)
109 mux.Handle("/arvados/v1/groups", rtr)
110 mux.Handle("/arvados/v1/groups/", rtr)
111 mux.Handle("/login", rtr)
112 mux.Handle("/logout", rtr)
114 hs := http.NotFoundHandler()
115 hs = prepend(hs, h.proxyRailsAPI)
116 hs = h.setupProxyRemoteCluster(hs)
117 hs = prepend(hs, oidcAuthorizer.Middleware)
121 sc := *arvados.DefaultSecureClient
122 sc.CheckRedirect = neverRedirect
125 ic := *arvados.InsecureHTTPClient
126 ic.CheckRedirect = neverRedirect
127 h.insecureClient = &ic
130 Name: "arvados-controller",
134 var errDBConnection = errors.New("database connection error")
136 func (h *Handler) db(ctx context.Context) (*sqlx.DB, error) {
138 defer h.pgdbMtx.Unlock()
143 db, err := sqlx.Open("postgres", h.Cluster.PostgreSQL.Connection.String())
145 ctxlog.FromContext(ctx).WithError(err).Error("postgresql connect failed")
146 return nil, errDBConnection
148 if p := h.Cluster.PostgreSQL.ConnectionPool; p > 0 {
149 db.SetMaxOpenConns(p)
151 if err := db.Ping(); err != nil {
152 ctxlog.FromContext(ctx).WithError(err).Error("postgresql connect succeeded but ping failed")
153 return nil, errDBConnection
159 type middlewareFunc func(http.ResponseWriter, *http.Request, http.Handler)
161 func prepend(next http.Handler, middleware middlewareFunc) http.Handler {
162 return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
163 middleware(w, req, next)
167 func (h *Handler) localClusterRequest(req *http.Request) (*http.Response, error) {
168 urlOut, insecure, err := railsproxy.FindRailsAPI(h.Cluster)
173 Scheme: urlOut.Scheme,
176 RawPath: req.URL.RawPath,
177 RawQuery: req.URL.RawQuery,
179 client := h.secureClient
181 client = h.insecureClient
183 return h.proxy.Do(req, urlOut, client)
186 func (h *Handler) proxyRailsAPI(w http.ResponseWriter, req *http.Request, next http.Handler) {
187 resp, err := h.localClusterRequest(req)
188 n, err := h.proxy.ForwardResponse(w, resp, err)
190 httpserver.Logger(req).WithError(err).WithField("bytesCopied", n).Error("error copying response body")
194 // Use a localhost entry from Services.RailsAPI.InternalURLs if one is
195 // present, otherwise choose an arbitrary entry.
196 func findRailsAPI(cluster *arvados.Cluster) (*url.URL, bool, error) {
198 for target := range cluster.Services.RailsAPI.InternalURLs {
199 target := url.URL(target)
201 if strings.HasPrefix(target.Host, "localhost:") || strings.HasPrefix(target.Host, "127.0.0.1:") || strings.HasPrefix(target.Host, "[::1]:") {
206 return nil, false, fmt.Errorf("Services.RailsAPI.InternalURLs is empty")
208 return best, cluster.TLS.Insecure, nil