| package ipc |
| |
| import ( |
| "errors" |
| "fmt" |
| "io" |
| "net" |
| "os" |
| "reflect" |
| "strings" |
| "sync" |
| "testing" |
| "time" |
| |
| _ "veyron.io/veyron/veyron/lib/testutil" |
| "veyron.io/veyron/veyron/lib/testutil/blackbox" |
| tsecurity "veyron.io/veyron/veyron/lib/testutil/security" |
| imanager "veyron.io/veyron/veyron/runtimes/google/ipc/stream/manager" |
| "veyron.io/veyron/veyron/runtimes/google/ipc/stream/proxy" |
| "veyron.io/veyron/veyron/runtimes/google/ipc/stream/vc" |
| "veyron.io/veyron/veyron/runtimes/google/ipc/version" |
| "veyron.io/veyron/veyron/runtimes/google/lib/publisher" |
| inaming "veyron.io/veyron/veyron/runtimes/google/naming" |
| isecurity "veyron.io/veyron/veyron/runtimes/google/security" |
| tnaming "veyron.io/veyron/veyron/runtimes/google/testing/mocks/naming" |
| vsecurity "veyron.io/veyron/veyron/security" |
| "veyron.io/veyron/veyron/security/caveat" |
| |
| "veyron.io/veyron/veyron2" |
| "veyron.io/veyron/veyron2/ipc" |
| "veyron.io/veyron/veyron2/ipc/stream" |
| "veyron.io/veyron/veyron2/naming" |
| "veyron.io/veyron/veyron2/security" |
| "veyron.io/veyron/veyron2/vdl/vdlutil" |
| "veyron.io/veyron/veyron2/verror" |
| "veyron.io/veyron/veyron2/vlog" |
| "veyron.io/veyron/veyron2/vom" |
| ) |
| |
| var ( |
| errAuthorizer = errors.New("ipc: application Authorizer denied access") |
| errMethod = verror.Abortedf("server returned an error") |
| clientID = newID("client") |
| serverID = newID("server") |
| clock = new(fakeClock) |
| ) |
| |
| type fakeClock struct { |
| sync.Mutex |
| time int |
| } |
| |
| func (c *fakeClock) Now() int { |
| c.Lock() |
| defer c.Unlock() |
| return c.time |
| } |
| |
| func (c *fakeClock) Advance(steps uint) { |
| c.Lock() |
| c.time += int(steps) |
| c.Unlock() |
| } |
| |
| type fakeTimeCaveat int |
| |
| func (c fakeTimeCaveat) Validate(security.Context) error { |
| now := clock.Now() |
| if now > int(c) { |
| return fmt.Errorf("fakeTimeCaveat expired: now=%d > then=%d", now, c) |
| } |
| return nil |
| } |
| |
| type userType string |
| |
| type testServer struct{} |
| |
| func (*testServer) Closure(call ipc.ServerCall) { |
| } |
| |
| func (*testServer) Error(call ipc.ServerCall) error { |
| return errMethod |
| } |
| |
| func (*testServer) Echo(call ipc.ServerCall, arg string) string { |
| return fmt.Sprintf("method:%q,suffix:%q,arg:%q", call.Method(), call.Suffix(), arg) |
| } |
| |
| func (*testServer) EchoUser(call ipc.ServerCall, arg string, u userType) (string, userType) { |
| return fmt.Sprintf("method:%q,suffix:%q,arg:%q", call.Method(), call.Suffix(), arg), u |
| } |
| |
| func (*testServer) EchoIDs(call ipc.ServerCall) (server, client string) { |
| return fmt.Sprintf("%v", call.LocalID()), fmt.Sprintf("%v", call.RemoteID()) |
| } |
| |
| func (*testServer) EchoBlessing(call ipc.ServerCall, arg string) (result, blessing string) { |
| return arg, fmt.Sprintf("%v", call.Blessing()) |
| } |
| |
| func (*testServer) EchoAndError(call ipc.ServerCall, arg string) (string, error) { |
| result := fmt.Sprintf("method:%q,suffix:%q,arg:%q", call.Method(), call.Suffix(), arg) |
| if arg == "error" { |
| return result, errMethod |
| } |
| return result, nil |
| } |
| |
| func (*testServer) Stream(call ipc.ServerCall, arg string) (string, error) { |
| result := fmt.Sprintf("method:%q,suffix:%q,arg:%q", call.Method(), call.Suffix(), arg) |
| var u userType |
| var err error |
| for err = call.Recv(&u); err == nil; err = call.Recv(&u) { |
| result += " " + string(u) |
| if err := call.Send(u); err != nil { |
| return "", err |
| } |
| } |
| if err == io.EOF { |
| err = nil |
| } |
| return result, err |
| } |
| |
| func (*testServer) Unauthorized(ipc.ServerCall) (string, error) { |
| return "UnauthorizedResult", fmt.Errorf("Unauthorized should never be called") |
| } |
| |
| type dischargeServer struct{} |
| |
| func (*dischargeServer) Discharge(ctx ipc.ServerCall, cav vdlutil.Any, _ security.DischargeImpetus) (vdlutil.Any, error) { |
| c, ok := cav.(security.ThirdPartyCaveat) |
| if !ok { |
| return nil, fmt.Errorf("discharger: unknown caveat(%T)", cav) |
| } |
| // Add a fakeTimeCaveat to allow the discharge to expire |
| expiry := fakeTimeCaveat(clock.Now()) |
| return serverID.MintDischarge(c, ctx, time.Hour, []security.Caveat{newCaveat(expiry)}) |
| } |
| |
| type testServerAuthorizer struct{} |
| |
| func (testServerAuthorizer) Authorize(c security.Context) error { |
| if c.Method() != "Unauthorized" { |
| return nil |
| } |
| return errAuthorizer |
| } |
| |
| type testServerDisp struct{ server interface{} } |
| |
| func (t testServerDisp) Lookup(suffix, method string) (ipc.Invoker, security.Authorizer, error) { |
| // If suffix is "nilAuth" we use default authorization, if it is "aclAuth" we |
| // use an ACL based authorizer, and otherwise we use the custom testServerAuthorizer. |
| var authorizer security.Authorizer |
| switch suffix { |
| case "discharger": |
| return ipc.ReflectInvoker(&dischargeServer{}), testServerAuthorizer{}, nil |
| case "nilAuth": |
| authorizer = nil |
| case "aclAuth": |
| // Only authorize clients matching patterns "client" or "server/...". |
| authorizer = vsecurity.NewACLAuthorizer(security.ACL{In: map[security.BlessingPattern]security.LabelSet{ |
| "server/...": security.LabelSet(security.AdminLabel), |
| "client": security.LabelSet(security.AdminLabel), |
| }}) |
| default: |
| authorizer = testServerAuthorizer{} |
| } |
| return ipc.ReflectInvoker(t.server), authorizer, nil |
| } |
| |
| func startServer(t *testing.T, serverID security.PrivateID, sm stream.Manager, ns naming.Namespace, ts interface{}) (naming.Endpoint, ipc.Server) { |
| vlog.VI(1).Info("InternalNewServer") |
| server, err := InternalNewServer(testContext(), sm, ns, vc.FixedLocalID(serverID)) |
| if err != nil { |
| t.Errorf("InternalNewServer failed: %v", err) |
| } |
| vlog.VI(1).Info("server.Listen") |
| ep, err := server.Listen("tcp", "127.0.0.1:0") |
| if err != nil { |
| t.Errorf("server.Listen failed: %v", err) |
| } |
| vlog.VI(1).Info("server.Serve") |
| disp := testServerDisp{ts} |
| if err := server.Serve("mountpoint/server", disp); err != nil { |
| t.Errorf("server.Publish failed: %v", err) |
| } |
| if err := server.Serve("mountpoint/discharger", disp); err != nil { |
| t.Errorf("server.Publish for discharger failed: %v", err) |
| } |
| return ep, server |
| } |
| |
| func verifyMount(t *testing.T, ns naming.Namespace, name string) { |
| if _, err := ns.Resolve(testContext(), name); err != nil { |
| t.Errorf("%s not found in mounttable", name) |
| } |
| } |
| |
| func verifyMountMissing(t *testing.T, ns naming.Namespace, name string) { |
| if servers, err := ns.Resolve(testContext(), name); err == nil { |
| t.Errorf("%s not supposed to be found in mounttable; got %d servers instead", name, len(servers)) |
| } |
| } |
| |
| func stopServer(t *testing.T, server ipc.Server, ns naming.Namespace) { |
| vlog.VI(1).Info("server.Stop") |
| n1 := "mountpoint/server" |
| n2 := "should_appear_in_mt/server" |
| verifyMount(t, ns, n1) |
| |
| // publish a second name |
| if err := server.Serve(n2, nil); err != nil { |
| t.Errorf("server.Serve failed: %v", err) |
| } |
| verifyMount(t, ns, n2) |
| |
| if err := server.Stop(); err != nil { |
| t.Errorf("server.Stop failed: %v", err) |
| } |
| |
| verifyMountMissing(t, ns, n1) |
| verifyMountMissing(t, ns, n2) |
| |
| // Check that we can no longer serve after Stop. |
| err := server.Serve("name doesn't matter", nil) |
| if err == nil || err.Error() != "ipc: server is stopped" { |
| t.Errorf("either no error, or a wrong error was returned: %v", err) |
| } |
| vlog.VI(1).Info("server.Stop DONE") |
| } |
| |
| type bundle struct { |
| client ipc.Client |
| server ipc.Server |
| ep naming.Endpoint |
| ns naming.Namespace |
| sm stream.Manager |
| } |
| |
| func (b bundle) cleanup(t *testing.T) { |
| if b.server != nil { |
| stopServer(t, b.server, b.ns) |
| } |
| if b.client != nil { |
| b.client.Close() |
| } |
| } |
| |
| func createBundle(t *testing.T, clientID, serverID security.PrivateID, ts interface{}) (b bundle) { |
| b.sm = imanager.InternalNew(naming.FixedRoutingID(0x555555555)) |
| b.ns = tnaming.NewSimpleNamespace() |
| if serverID != nil { |
| b.ep, b.server = startServer(t, serverID, b.sm, b.ns, ts) |
| } |
| if clientID != nil { |
| var err error |
| if b.client, err = InternalNewClient(b.sm, b.ns, vc.FixedLocalID(clientID)); err != nil { |
| t.Fatalf("InternalNewClient failed: %v", err) |
| } |
| } |
| return |
| } |
| |
| func bless(blessor security.PrivateID, blessee security.PublicID, name string, caveats ...security.Caveat) security.PublicID { |
| blessed, err := blessor.Bless(blessee, name, 24*time.Hour, caveats) |
| if err != nil { |
| panic(err) |
| } |
| return blessed |
| } |
| |
| func derive(blessor security.PrivateID, name string, caveats ...security.Caveat) security.PrivateID { |
| id := newID("irrelevant") |
| derivedID, err := id.Derive(bless(blessor, id.PublicID(), name, caveats...)) |
| if err != nil { |
| panic(err) |
| } |
| return derivedID |
| } |
| |
| // deriveForThirdPartyCaveats creates a SetPrivateID that can be used for |
| // 1. talking to the server, if the caveats are fulfilled |
| // 2. getting discharges, even if the caveats are not fulfilled |
| // As an identity with an unfulfilled caveat is invalid (even for asking for a |
| // discharge), this function creates a set of two identities. The first will |
| // have the caveats, the second will always be valid, but only for getting |
| // discharges. The client presents both blessings in both cases, the discharger |
| // ignores the first if it is invalid. |
| func deriveForThirdPartyCaveats(blessor security.PrivateID, name string, caveats ...security.Caveat) security.PrivateID { |
| id := derive(blessor, name, caveats...) |
| dischargeID, err := id.Derive(bless(blessor, id.PublicID(), name, mkCaveat(security.MethodCaveat("Discharge")))) |
| if err != nil { |
| panic(err) |
| } |
| id, err = isecurity.NewSetPrivateID(id, dischargeID) |
| if err != nil { |
| panic(err) |
| } |
| return id |
| } |
| |
| func matchesErrorPattern(err error, pattern string) bool { |
| if (len(pattern) == 0) != (err == nil) { |
| return false |
| } |
| return err == nil || strings.Index(err.Error(), pattern) >= 0 |
| } |
| |
| func TestMultipleCallsToServe(t *testing.T) { |
| sm := imanager.InternalNew(naming.FixedRoutingID(0x555555555)) |
| ns := tnaming.NewSimpleNamespace() |
| server, err := InternalNewServer(testContext(), sm, ns, vc.FixedLocalID(serverID)) |
| if err != nil { |
| t.Errorf("InternalNewServer failed: %v", err) |
| } |
| _, err = server.Listen("tcp", "127.0.0.1:0") |
| if err != nil { |
| t.Errorf("server.Listen failed: %v", err) |
| } |
| |
| disp := &testServerDisp{&testServer{}} |
| if err := server.Serve("mountpoint/server", disp); err != nil { |
| t.Errorf("server.Publish failed: %v", err) |
| } |
| |
| n1 := "mountpoint/server" |
| n2 := "should_appear_in_mt/server" |
| n3 := "should_appear_in_mt/server" |
| n4 := "should_not_appear_in_mt/server" |
| |
| verifyMount(t, ns, n1) |
| |
| if err := server.Serve(n2, disp); err != nil { |
| t.Errorf("server.Serve failed: %v", err) |
| } |
| if err := server.Serve(n3, nil); err != nil { |
| t.Errorf("server.Serve failed: %v", err) |
| } |
| verifyMount(t, ns, n2) |
| verifyMount(t, ns, n3) |
| |
| if err := server.Serve(n4, &testServerDisp{&testServer{}}); err == nil { |
| t.Errorf("server.Serve should have failed") |
| } |
| verifyMountMissing(t, ns, n4) |
| |
| if err := server.Stop(); err != nil { |
| t.Errorf("server.Stop failed: %v", err) |
| } |
| |
| verifyMountMissing(t, ns, n1) |
| verifyMountMissing(t, ns, n2) |
| verifyMountMissing(t, ns, n3) |
| } |
| |
| func TestStartCall(t *testing.T) { |
| const ( |
| authorizeErr = "not authorized because" |
| nameErr = "does not match the provided pattern" |
| ) |
| var ( |
| // TODO(ataly, ashankar): Uncomment the following once server authorization |
| // is enabled. |
| // now = time.Now() |
| // cavOnlyV1 = caveat.UniversalCaveat(caveat.PeerIdentity{"client/v1"}) |
| // cavExpired = security.ServiceCaveat{ |
| // Service: security.AllPrincipals, |
| // Caveat: &caveat.Expiry{IssueTime: now, ExpiryTime: now}, |
| // } |
| // clientV1ID = derive(clientID, "v1") |
| // clientV2ID = derive(clientID, "v2") |
| // serverV1ID = derive(serverID, "v1", cavOnlyV1) |
| // serverExpiredID = derive(serverID, "expired", cavExpired) |
| ) |
| |
| tests := []struct { |
| clientID, serverID security.PrivateID |
| pattern security.BlessingPattern // pattern on the server identity expected by client. |
| err string |
| }{ |
| // Client accepts talking to server only if server's identity matches the |
| // provided pattern. |
| {clientID, serverID, security.AllPrincipals, ""}, |
| {clientID, serverID, "server", ""}, |
| {clientID, serverID, "server/v1", ""}, |
| {clientID, serverID, "anotherServer", nameErr}, |
| |
| // TODO(ataly, ashankar): Uncomment the following once server authorization |
| // is enabled. |
| // All clients reject talking to a server with an expired identity. |
| // {clientID, serverExpiredID, security.AllPrincipals, authorizeErr}, |
| // {clientV1ID, serverExpiredID, security.AllPrincipals, authorizeErr}, |
| // {clientV2ID, serverExpiredID, security.AllPrincipals, authorizeErr}, |
| |
| // Only clientV1 accepts talking to serverV1. |
| // {clientV1ID, serverV1ID, security.AllPrincipals, ""}, |
| // {clientV2ID, serverV1ID, security.AllPrincipals, authorizeErr}, |
| } |
| // Servers and clients will be created per-test, use the same stream manager and mounttable. |
| mgr := imanager.InternalNew(naming.FixedRoutingID(0x1111111)) |
| ns := tnaming.NewSimpleNamespace() |
| for _, test := range tests { |
| name := fmt.Sprintf("(clientID:%q serverID:%q)", test.clientID, test.serverID) |
| _, server := startServer(t, test.serverID, mgr, ns, &testServer{}) |
| client, err := InternalNewClient(mgr, ns, vc.FixedLocalID(test.clientID)) |
| if err != nil { |
| t.Errorf("%s: Client creation failed: %v", name, err) |
| stopServer(t, server, ns) |
| continue |
| } |
| if _, err := client.StartCall(testContext(), "mountpoint/server/suffix", "irrelevant", nil, veyron2.RemoteID(test.pattern)); !matchesErrorPattern(err, test.err) { |
| t.Errorf(`%s: client.StartCall: got error "%v", want to match "%v"`, name, err, test.err) |
| } |
| client.Close() |
| stopServer(t, server, ns) |
| } |
| } |
| |
| func TestRPC(t *testing.T) { |
| testRPC(t, true) |
| } |
| |
| // TestCloseSendOnFinish tests that Finish informs the server that no more |
| // inputs will be sent by the client if CloseSend has not already done so. |
| func TestRPCCloseSendOnFinish(t *testing.T) { |
| testRPC(t, false) |
| } |
| |
| func testRPC(t *testing.T, shouldCloseSend bool) { |
| type v []interface{} |
| type testcase struct { |
| name string |
| method string |
| args v |
| streamArgs v |
| startErr error |
| results v |
| finishErr error |
| } |
| tests := []testcase{ |
| {"mountpoint/server/suffix", "Closure", nil, nil, nil, nil, nil}, |
| {"mountpoint/server/suffix", "Error", nil, nil, nil, v{errMethod}, nil}, |
| |
| {"mountpoint/server/suffix", "Echo", v{"foo"}, nil, nil, v{`method:"Echo",suffix:"suffix",arg:"foo"`}, nil}, |
| {"mountpoint/server/suffix/abc", "Echo", v{"bar"}, nil, nil, v{`method:"Echo",suffix:"suffix/abc",arg:"bar"`}, nil}, |
| |
| {"mountpoint/server/suffix", "EchoUser", v{"foo", userType("bar")}, nil, nil, v{`method:"EchoUser",suffix:"suffix",arg:"foo"`, userType("bar")}, nil}, |
| {"mountpoint/server/suffix/abc", "EchoUser", v{"baz", userType("bla")}, nil, nil, v{`method:"EchoUser",suffix:"suffix/abc",arg:"baz"`, userType("bla")}, nil}, |
| {"mountpoint/server/suffix", "Stream", v{"foo"}, v{userType("bar"), userType("baz")}, nil, v{`method:"Stream",suffix:"suffix",arg:"foo" bar baz`, nil}, nil}, |
| {"mountpoint/server/suffix/abc", "Stream", v{"123"}, v{userType("456"), userType("789")}, nil, v{`method:"Stream",suffix:"suffix/abc",arg:"123" 456 789`, nil}, nil}, |
| {"mountpoint/server/suffix", "EchoIDs", nil, nil, nil, v{"server", "client"}, nil}, |
| {"mountpoint/server/suffix", "EchoAndError", v{"bugs bunny"}, nil, nil, v{`method:"EchoAndError",suffix:"suffix",arg:"bugs bunny"`, nil}, nil}, |
| {"mountpoint/server/suffix", "EchoAndError", v{"error"}, nil, nil, v{`method:"EchoAndError",suffix:"suffix",arg:"error"`, errMethod}, nil}, |
| } |
| name := func(t testcase) string { |
| return fmt.Sprintf("%s.%s(%v)", t.name, t.method, t.args) |
| } |
| b := createBundle(t, clientID, serverID, &testServer{}) |
| defer b.cleanup(t) |
| for _, test := range tests { |
| vlog.VI(1).Infof("%s client.StartCall", name(test)) |
| call, err := b.client.StartCall(testContext(), test.name, test.method, test.args) |
| if err != test.startErr { |
| t.Errorf(`%s client.StartCall got error "%v", want "%v"`, name(test), err, test.startErr) |
| continue |
| } |
| for _, sarg := range test.streamArgs { |
| vlog.VI(1).Infof("%s client.Send(%v)", name(test), sarg) |
| if err := call.Send(sarg); err != nil { |
| t.Errorf(`%s call.Send(%v) got unexpected error "%v"`, name(test), sarg, err) |
| } |
| var u userType |
| if err := call.Recv(&u); err != nil { |
| t.Errorf(`%s call.Recv(%v) got unexpected error "%v"`, name(test), sarg, err) |
| } |
| if !reflect.DeepEqual(u, sarg) { |
| t.Errorf("%s call.Recv got value %v, want %v", name(test), u, sarg) |
| } |
| } |
| if shouldCloseSend { |
| vlog.VI(1).Infof("%s call.CloseSend", name(test)) |
| // When the method does not involve streaming |
| // arguments, the server gets all the arguments in |
| // StartCall and then sends a response without |
| // (unnecessarily) waiting for a CloseSend message from |
| // the client. If the server responds before the |
| // CloseSend call is made at the client, the CloseSend |
| // call will fail. Thus, only check for errors on |
| // CloseSend if there are streaming arguments to begin |
| // with (i.e., only if the server is expected to wait |
| // for the CloseSend notification). |
| if err := call.CloseSend(); err != nil && len(test.streamArgs) > 0 { |
| t.Errorf(`%s call.CloseSend got unexpected error "%v"`, name(test), err) |
| } |
| } |
| vlog.VI(1).Infof("%s client.Finish", name(test)) |
| results := makeResultPtrs(test.results) |
| err = call.Finish(results...) |
| if err != test.finishErr { |
| t.Errorf(`%s call.Finish got error "%v", want "%v"`, name(test), err, test.finishErr) |
| } |
| checkResultPtrs(t, name(test), results, test.results) |
| } |
| } |
| |
| func TestMultipleFinish(t *testing.T) { |
| type v []interface{} |
| b := createBundle(t, clientID, serverID, &testServer{}) |
| defer b.cleanup(t) |
| call, err := b.client.StartCall(testContext(), "mountpoint/server/suffix", "Echo", v{"foo"}) |
| if err != nil { |
| t.Fatalf(`client.StartCall got error "%v"`, err) |
| } |
| var results string |
| err = call.Finish(&results) |
| if err != nil { |
| t.Fatalf(`call.Finish got error "%v"`, err) |
| } |
| // Calling Finish a second time should result in a useful error. |
| err = call.Finish(&results) |
| if got, want := err, verror.BadProtocolf("ipc: multiple calls to Finish not allowed"); got != want { |
| t.Fatalf(`call.Finish got error "%v", want "%v"`, got, want) |
| } |
| } |
| |
| // granter implements ipc.Granter, returning a fixed (security.PublicID, error) pair. |
| type granter struct { |
| ipc.CallOpt |
| id security.PublicID |
| err error |
| } |
| |
| func (g granter) Grant(id security.PublicID) (security.PublicID, error) { return g.id, g.err } |
| |
| func TestBlessing(t *testing.T) { |
| b := createBundle(t, clientID, serverID, &testServer{}) |
| defer b.cleanup(t) |
| |
| tests := []struct { |
| granter ipc.CallOpt |
| blessing, starterr, finisherr string |
| }{ |
| {blessing: "<nil>"}, |
| {granter: granter{id: bless(clientID, serverID.PublicID(), "blessed")}, blessing: "client/blessed"}, |
| {granter: granter{err: errors.New("hell no")}, starterr: "hell no"}, |
| {granter: granter{id: clientID.PublicID()}, finisherr: "blessing provided not bound to this server"}, |
| } |
| for _, test := range tests { |
| call, err := b.client.StartCall(testContext(), "mountpoint/server/suffix", "EchoBlessing", []interface{}{"argument"}, test.granter) |
| if !matchesErrorPattern(err, test.starterr) { |
| t.Errorf("%+v: StartCall returned error %v", test, err) |
| } |
| if err != nil { |
| continue |
| } |
| var result, blessing string |
| if err = call.Finish(&result, &blessing); !matchesErrorPattern(err, test.finisherr) { |
| t.Errorf("%+v: Finish returned error %v", test, err) |
| } |
| if err != nil { |
| continue |
| } |
| if result != "argument" || blessing != test.blessing { |
| t.Errorf("%+v: Got (%q, %q)", test, result, blessing) |
| } |
| } |
| } |
| |
| func mkThirdPartyCaveat(discharger security.PublicID, location string, c security.Caveat) security.Caveat { |
| tpc, err := caveat.NewPublicKeyCaveat(c, discharger.PublicKey(), location, security.ThirdPartyRequirements{}) |
| if err != nil { |
| panic(err) |
| } |
| return newCaveat(tpc) |
| } |
| |
| type dischargeImpetusTester struct { |
| LastDischargeImpetus security.DischargeImpetus |
| } |
| |
| // Implements ipc.Dispatcher |
| func (s *dischargeImpetusTester) Lookup(_, _ string) (ipc.Invoker, security.Authorizer, error) { |
| return ipc.ReflectInvoker(s), nil, nil |
| } |
| |
| // Implements the discharge service: Always fails to issue a discharge, but records the impetus |
| func (s *dischargeImpetusTester) Discharge(ctx ipc.ServerCall, cav vdlutil.Any, impetus security.DischargeImpetus) (vdlutil.Any, error) { |
| s.LastDischargeImpetus = impetus |
| return nil, fmt.Errorf("discharges not issued") |
| } |
| |
| func names2patterns(names []string) []security.BlessingPattern { |
| ret := make([]security.BlessingPattern, len(names)) |
| for idx, n := range names { |
| ret[idx] = security.BlessingPattern(n) |
| } |
| return ret |
| } |
| |
| func TestDischargeImpetus(t *testing.T) { |
| var ( |
| // The Discharge service can be run by anyone, but in these tests it is the same as the server. |
| dischargerID = serverID.PublicID() |
| |
| mkClientID = func(req security.ThirdPartyRequirements) security.PrivateID { |
| tpc, err := caveat.NewPublicKeyCaveat(newCaveat(alwaysValidCaveat{}), dischargerID.PublicKey(), "mountpoint/discharger", req) |
| if err != nil { |
| t.Fatalf("Failed to create ThirdPartyCaveat: %v", err) |
| } |
| return deriveForThirdPartyCaveats(serverID, "client", newCaveat(tpc)) |
| } |
| ) |
| sm := imanager.InternalNew(naming.FixedRoutingID(0x555555555)) |
| ns := tnaming.NewSimpleNamespace() |
| server, err := InternalNewServer(testContext(), sm, ns, vc.FixedLocalID(serverID)) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer server.Stop() |
| if _, err := server.Listen("tcp", "127.0.0.1:0"); err != nil { |
| t.Fatal(err) |
| } |
| |
| var tester dischargeImpetusTester |
| if err := server.Serve("mountpoint", &tester); err != nil { |
| t.Fatal(err) |
| } |
| |
| tests := []struct { |
| Requirements security.ThirdPartyRequirements |
| Impetus security.DischargeImpetus |
| }{ |
| { // No requirements, no impetus |
| Requirements: security.ThirdPartyRequirements{}, |
| Impetus: security.DischargeImpetus{}, |
| }, |
| { // Require everything |
| Requirements: security.ThirdPartyRequirements{ReportServer: true, ReportMethod: true, ReportArguments: true}, |
| Impetus: security.DischargeImpetus{Server: names2patterns(serverID.PublicID().Names()), Method: "Method", Arguments: []vdlutil.Any{vdlutil.Any("argument")}}, |
| }, |
| { // Require only the method name |
| Requirements: security.ThirdPartyRequirements{ReportMethod: true}, |
| Impetus: security.DischargeImpetus{Method: "Method"}, |
| }, |
| } |
| |
| for _, test := range tests { |
| client, err := InternalNewClient(sm, ns, vc.FixedLocalID(mkClientID(test.Requirements))) |
| if err != nil { |
| t.Fatalf("InternalNewClient(%+v) failed: %v", test.Requirements, err) |
| } |
| defer client.Close() |
| // StartCall should fetch the discharge, do not worry about finishing the RPC - do not care about that for this test. |
| if _, err := client.StartCall(testContext(), "mountpoint/object", "Method", []interface{}{"argument"}); err != nil { |
| t.Errorf("StartCall(%+v) failed: %v", test.Requirements, err) |
| continue |
| } |
| if got, want := tester.LastDischargeImpetus, test.Impetus; !reflect.DeepEqual(got, want) { |
| t.Errorf("Got [%v] want [%v] for test %+v", got, want, test.Requirements) |
| } |
| } |
| } |
| |
| func TestRPCAuthorization(t *testing.T) { |
| var ( |
| now = time.Now() |
| // First-party caveats |
| cavOnlyEcho = mkCaveat(security.MethodCaveat("Echo")) |
| cavExpired = mkCaveat(security.ExpiryCaveat(now)) |
| // Third-party caveats |
| // The Discharge service can be run by any identity, but in our tests the same server runs |
| // a Discharge service as well. |
| dischargerID = serverID.PublicID() |
| cavTPValid = mkThirdPartyCaveat(dischargerID, "mountpoint/server/discharger", mkCaveat(security.ExpiryCaveat(now.Add(24*time.Hour)))) |
| cavTPExpired = mkThirdPartyCaveat(dischargerID, "mountpoint/server/discharger", mkCaveat(security.ExpiryCaveat(now))) |
| |
| // Client blessings that will be tested |
| blessedByServerOnlyEcho = derive(serverID, "onlyEcho", cavOnlyEcho) |
| blessedByServerExpired = derive(serverID, "expired", cavExpired) |
| blessedByServerTPValid = deriveForThirdPartyCaveats(serverID, "tpvalid", cavTPValid) |
| blessedByServerTPExpired = deriveForThirdPartyCaveats(serverID, "tpexpired", cavTPExpired) |
| blessedByClient = derive(clientID, "blessed") |
| ) |
| const ( |
| expiredIDErr = "security.unixTimeExpiryCaveat" |
| aclAuthErr = "no matching ACL entry found" |
| ) |
| invalidMethodErr := func(method string) string { |
| return fmt.Sprintf(`security.methodCaveat=[Echo] fails validation for method %q`, method) |
| } |
| |
| type v []interface{} |
| type testcase struct { |
| clientID security.PrivateID |
| name string |
| method string |
| args v |
| results v |
| finishErr string |
| } |
| tests := []testcase{ |
| // Clients whose identities have invalid caveats are not by authorized by any authorizer. |
| {blessedByServerExpired, "mountpoint/server/nilAuth", "Echo", v{"foo"}, v{""}, expiredIDErr}, |
| {blessedByServerExpired, "mountpoint/server/suffix", "Echo", v{"foo"}, v{""}, expiredIDErr}, |
| {blessedByServerOnlyEcho, "mountpoint/server/nilAuth", "Closure", nil, nil, invalidMethodErr("Closure")}, |
| {blessedByServerOnlyEcho, "mountpoint/server/suffix", "Closure", nil, nil, invalidMethodErr("Closure")}, |
| // Only clients with a trusted name that matches either the server's identity or an identity blessed |
| // by the server are authorized by the (default) nilAuth authorizer. |
| {clientID, "mountpoint/server/nilAuth", "Echo", v{"foo"}, v{""}, aclAuthErr}, |
| {blessedByClient, "mountpoint/server/nilAuth", "Echo", v{"foo"}, v{""}, aclAuthErr}, |
| {serverID, "mountpoint/server/nilAuth", "Echo", v{"foo"}, v{`method:"Echo",suffix:"nilAuth",arg:"foo"`}, ""}, |
| {serverID, "mountpoint/server/nilAuth", "Closure", nil, nil, ""}, |
| {blessedByServerOnlyEcho, "mountpoint/server/nilAuth", "Echo", v{"foo"}, v{`method:"Echo",suffix:"nilAuth",arg:"foo"`}, ""}, |
| // Only clients matching the server's ACL are authorized. |
| {clientID, "mountpoint/server/aclAuth", "Echo", v{"foo"}, v{`method:"Echo",suffix:"aclAuth",arg:"foo"`}, ""}, |
| {blessedByClient, "mountpoint/server/aclAuth", "Echo", v{"foo"}, v{""}, aclAuthErr}, |
| {serverID, "mountpoint/server/aclAuth", "Echo", v{"foo"}, v{`method:"Echo",suffix:"aclAuth",arg:"foo"`}, ""}, |
| {blessedByServerOnlyEcho, "mountpoint/server/aclAuth", "Echo", v{"foo"}, v{`method:"Echo",suffix:"aclAuth",arg:"foo"`}, ""}, |
| {clientID, "mountpoint/server/aclAuth", "Closure", nil, nil, ""}, |
| {blessedByClient, "mountpoint/server/aclAuth", "Closure", nil, nil, aclAuthErr}, |
| {serverID, "mountpoint/server/aclAuth", "Closure", nil, nil, ""}, |
| // All methods except "Unauthorized" are authorized by the custom authorizer. |
| {clientID, "mountpoint/server/suffix", "Echo", v{"foo"}, v{`method:"Echo",suffix:"suffix",arg:"foo"`}, ""}, |
| {blessedByClient, "mountpoint/server/suffix", "Echo", v{"foo"}, v{`method:"Echo",suffix:"suffix",arg:"foo"`}, ""}, |
| {serverID, "mountpoint/server/suffix", "Echo", v{"foo"}, v{`method:"Echo",suffix:"suffix",arg:"foo"`}, ""}, |
| {blessedByServerOnlyEcho, "mountpoint/server/suffix", "Echo", v{"foo"}, v{`method:"Echo",suffix:"suffix",arg:"foo"`}, ""}, |
| {clientID, "mountpoint/server/suffix", "Closure", nil, nil, ""}, |
| {blessedByClient, "mountpoint/server/suffix", "Closure", nil, nil, ""}, |
| {serverID, "mountpoint/server/suffix", "Closure", nil, nil, ""}, |
| {clientID, "mountpoint/server/suffix", "Unauthorized", nil, v{""}, "application Authorizer denied access"}, |
| {blessedByClient, "mountpoint/server/suffix", "Unauthorized", nil, v{""}, "application Authorizer denied access"}, |
| {serverID, "mountpoint/server/suffix", "Unauthorized", nil, v{""}, "application Authorizer denied access"}, |
| // Third-party caveat discharges should be fetched and forwarded |
| {blessedByServerTPValid, "mountpoint/server/suffix", "Echo", v{"foo"}, v{`method:"Echo",suffix:"suffix",arg:"foo"`}, ""}, |
| {blessedByServerTPExpired, "mountpoint/server/suffix", "Echo", v{"foo"}, v{""}, "missing discharge"}, |
| } |
| name := func(t testcase) string { |
| return fmt.Sprintf("%q RPCing %s.%s(%v)", t.clientID.PublicID(), t.name, t.method, t.args) |
| } |
| |
| b := createBundle(t, nil, serverID, &testServer{}) // we only create the server, a separate client will be created for each test. |
| defer b.cleanup(t) |
| for _, test := range tests { |
| client, err := InternalNewClient(b.sm, b.ns, vc.FixedLocalID(test.clientID)) |
| if err != nil { |
| t.Fatalf("InternalNewClient failed: %v", err) |
| } |
| defer client.Close() |
| call, err := client.StartCall(testContext(), test.name, test.method, test.args) |
| if err != nil { |
| t.Errorf(`%s client.StartCall got unexpected error: "%v"`, name(test), err) |
| continue |
| } |
| results := makeResultPtrs(test.results) |
| err = call.Finish(results...) |
| if !matchesErrorPattern(err, test.finishErr) { |
| t.Errorf(`%s call.Finish got error: "%v", want to match: "%v"`, name(test), err, test.finishErr) |
| } |
| } |
| } |
| |
| type alwaysValidCaveat struct{} |
| |
| func (alwaysValidCaveat) Validate(security.Context) error { return nil } |
| |
| func TestDischargePurgeFromCache(t *testing.T) { |
| var ( |
| dischargerID = serverID.PublicID() |
| c = mkThirdPartyCaveat(dischargerID, "mountpoint/server/discharger", newCaveat(alwaysValidCaveat{})) |
| clientCID = deriveForThirdPartyCaveats(serverID, "client", c) |
| ) |
| b := createBundle(t, clientCID, serverID, &testServer{}) |
| defer b.cleanup(t) |
| |
| call := func() error { |
| call, err := b.client.StartCall(testContext(), "mountpoint/server/suffix", "Echo", []interface{}{"batman"}) |
| if err != nil { |
| return fmt.Errorf("client.StartCall failed: %v", err) |
| } |
| var got string |
| if err := call.Finish(&got); err != nil { |
| return fmt.Errorf("client.Finish failed: %v", err) |
| } |
| if want := `method:"Echo",suffix:"suffix",arg:"batman"`; got != want { |
| return fmt.Errorf("Got [%v] want [%v]", got, want) |
| } |
| return nil |
| } |
| |
| // First call should succeed |
| if err := call(); err != nil { |
| t.Fatal(err) |
| } |
| // Advance virtual clock, which will invalidate the discharge |
| clock.Advance(1) |
| if err := call(); !matchesErrorPattern(err, "fakeTimeCaveat expired") { |
| t.Errorf("Got error [%v] wanted to match pattern 'fakeTimeCaveat expired'", err) |
| } |
| // But retrying will succeed since the discharge should be purged from cache and refreshed |
| if err := call(); err != nil { |
| t.Fatal(err) |
| } |
| } |
| |
| type cancelTestServer struct { |
| started chan struct{} |
| cancelled chan struct{} |
| } |
| |
| func newCancelTestServer() *cancelTestServer { |
| return &cancelTestServer{ |
| started: make(chan struct{}), |
| cancelled: make(chan struct{}), |
| } |
| } |
| |
| func (s *cancelTestServer) CancelStreamReader(call ipc.ServerCall) error { |
| close(s.started) |
| for { |
| var b []byte |
| if err := call.Recv(&b); err != nil && err != io.EOF { |
| return err |
| } |
| select { |
| case <-call.Done(): |
| close(s.cancelled) |
| return nil |
| default: |
| } |
| } |
| } |
| |
| // CancelStreamIgnorer doesn't read from it's input stream so all it's |
| // buffers fill. The intention is to show that call.Done() is closed |
| // even when the stream is stalled. |
| func (s *cancelTestServer) CancelStreamIgnorer(call ipc.ServerCall) error { |
| close(s.started) |
| for { |
| time.Sleep(time.Millisecond) |
| select { |
| case <-call.Done(): |
| close(s.cancelled) |
| return nil |
| default: |
| } |
| } |
| } |
| |
| func waitForCancel(t *testing.T, ts *cancelTestServer, call ipc.Call) { |
| <-ts.started |
| call.Cancel() |
| <-ts.cancelled |
| } |
| |
| // TestCancel tests cancellation while the server is reading from a stream. |
| func TestCancel(t *testing.T) { |
| ts := newCancelTestServer() |
| b := createBundle(t, clientID, serverID, ts) |
| defer b.cleanup(t) |
| |
| call, err := b.client.StartCall(testContext(), "mountpoint/server/suffix", "CancelStreamReader", []interface{}{}) |
| if err != nil { |
| t.Fatalf("Start call failed: %v", err) |
| } |
| for i := 0; i <= 10; i++ { |
| b := []byte{1, 2, 3} |
| if err := call.Send(b); err != nil { |
| t.Errorf("clientCall.Send error %q", err) |
| } |
| } |
| waitForCancel(t, ts, call) |
| } |
| |
| // TestCancelWithFullBuffers tests that even if the writer has filled the buffers and |
| // the server is not reading that the cancel message gets through. |
| func TestCancelWithFullBuffers(t *testing.T) { |
| ts := newCancelTestServer() |
| b := createBundle(t, clientID, serverID, ts) |
| defer b.cleanup(t) |
| |
| call, err := b.client.StartCall(testContext(), "mountpoint/server/suffix", "CancelStreamIgnorer", []interface{}{}) |
| if err != nil { |
| t.Fatalf("Start call failed: %v", err) |
| } |
| // Fill up all the write buffers to ensure that cancelling works even when the stream |
| // is blocked. |
| call.Send(make([]byte, vc.MaxSharedBytes)) |
| call.Send(make([]byte, vc.DefaultBytesBufferedPerFlow)) |
| |
| waitForCancel(t, ts, call) |
| } |
| |
| type streamRecvInGoroutineServer struct{ c chan error } |
| |
| func (s *streamRecvInGoroutineServer) RecvInGoroutine(call ipc.ServerCall) error { |
| // Spawn a goroutine to read streaming data from the client. |
| go func() { |
| var i interface{} |
| for { |
| err := call.Recv(&i) |
| if err != nil { |
| s.c <- err |
| return |
| } |
| } |
| }() |
| // Imagine the server did some processing here and now that it is done, |
| // it does not care to see what else the client has to say. |
| return nil |
| } |
| |
| func TestStreamReadTerminatedByServer(t *testing.T) { |
| s := &streamRecvInGoroutineServer{c: make(chan error, 1)} |
| b := createBundle(t, clientID, serverID, s) |
| defer b.cleanup(t) |
| |
| call, err := b.client.StartCall(testContext(), "mountpoint/server/suffix", "RecvInGoroutine", []interface{}{}) |
| if err != nil { |
| t.Fatalf("StartCall failed: %v", err) |
| } |
| |
| c := make(chan error, 1) |
| go func() { |
| for i := 0; true; i++ { |
| if err := call.Send(i); err != nil { |
| c <- err |
| return |
| } |
| } |
| }() |
| |
| // The goroutine at the server executing "Recv" should have terminated |
| // with EOF. |
| if err := <-s.c; err != io.EOF { |
| t.Errorf("Got %v at server, want io.EOF", err) |
| } |
| // The client Send should have failed since the RPC has been |
| // terminated. |
| if err := <-c; err == nil { |
| t.Errorf("Client Send should fail as the server should have closed the flow") |
| } |
| } |
| |
| // TestConnectWithIncompatibleServers tests that clients ignore incompatible endpoints. |
| func TestConnectWithIncompatibleServers(t *testing.T) { |
| b := createBundle(t, clientID, serverID, &testServer{}) |
| defer b.cleanup(t) |
| |
| // Publish some incompatible endpoints. |
| publisher := publisher.New(testContext(), b.ns, publishPeriod) |
| defer publisher.WaitForStop() |
| defer publisher.Stop() |
| publisher.AddName("incompatible") |
| publisher.AddServer("/@2@tcp@localhost:10000@@1000000@2000000@@") |
| publisher.AddServer("/@2@tcp@localhost:10001@@2000000@3000000@@") |
| |
| _, err := b.client.StartCall(testContext(), "incompatible/suffix", "Echo", []interface{}{"foo"}) |
| if !strings.Contains(err.Error(), version.NoCompatibleVersionErr.Error()) { |
| t.Errorf("Expected error %v, found: %v", version.NoCompatibleVersionErr, err) |
| } |
| |
| // Now add a server with a compatible endpoint and try again. |
| publisher.AddServer("/" + b.ep.String()) |
| publisher.AddName("incompatible") |
| |
| call, err := b.client.StartCall(testContext(), "incompatible/suffix", "Echo", []interface{}{"foo"}) |
| if err != nil { |
| t.Fatal(err) |
| } |
| var result string |
| if err = call.Finish(&result); err != nil { |
| t.Errorf("Unexpected error finishing call %v", err) |
| } |
| expected := `method:"Echo",suffix:"suffix",arg:"foo"` |
| if result != expected { |
| t.Errorf("Wrong result returned. Got %s, wanted %s", result, expected) |
| } |
| } |
| |
| // TestReconnect verifies that the client transparently re-establishes the |
| // connection to the server if the server dies and comes back (on the same |
| // endpoint). |
| func TestReconnect(t *testing.T) { |
| b := createBundle(t, clientID, nil, nil) // We only need the client from the bundle. |
| defer b.cleanup(t) |
| idFile := tsecurity.SaveIdentityToFile(derive(clientID, "server")) |
| server := blackbox.HelperCommand(t, "runServer", "127.0.0.1:0", idFile) |
| server.Cmd.Start() |
| addr, err := server.ReadLineFromChild() |
| if err != nil { |
| t.Fatalf("Failed to read server address from process: %v", err) |
| } |
| ep, err := inaming.NewEndpoint(addr) |
| if err != nil { |
| t.Fatalf("inaming.NewEndpoint(%q): %v", addr, err) |
| } |
| serverName := naming.JoinAddressName(ep.String(), "suffix") |
| makeCall := func() (string, error) { |
| call, err := b.client.StartCall(testContext(), serverName, "Echo", []interface{}{"bratman"}) |
| if err != nil { |
| return "", err |
| } |
| var result string |
| if err = call.Finish(&result); err != nil { |
| return "", err |
| } |
| return result, nil |
| } |
| expected := `method:"Echo",suffix:"suffix",arg:"bratman"` |
| if result, err := makeCall(); err != nil || result != expected { |
| t.Errorf("Got (%q, %v) want (%q, nil)", result, err, expected) |
| } |
| // Kill the server, verify client can't talk to it anymore. |
| server.Cleanup() |
| if _, err := makeCall(); err == nil { |
| t.Fatal("Expected call to fail since server is dead") |
| } |
| // Resurrect the server with the same address, verify client |
| // re-establishes the connection. |
| server = blackbox.HelperCommand(t, "runServer", addr, idFile) |
| defer server.Cleanup() |
| server.Cmd.Start() |
| if addr2, err := server.ReadLineFromChild(); addr2 != addr || err != nil { |
| t.Fatalf("Got (%q, %v) want (%q, nil)", addr2, err, addr) |
| } |
| if result, err := makeCall(); err != nil || result != expected { |
| t.Errorf("Got (%q, %v) want (%q, nil)", result, err, expected) |
| } |
| } |
| |
| func TestPreferredAddress(t *testing.T) { |
| sm := imanager.InternalNew(naming.FixedRoutingID(0x555555555)) |
| defer sm.Shutdown() |
| ns := tnaming.NewSimpleNamespace() |
| pa := func(string, []net.Addr) (net.Addr, error) { |
| a := &net.IPAddr{} |
| a.IP = net.ParseIP("1.1.1.1") |
| return a, nil |
| } |
| server, err := InternalNewServer(testContext(), sm, ns, vc.FixedLocalID(serverID), &veyron2.AddressChooserOpt{pa}) |
| if err != nil { |
| t.Errorf("InternalNewServer failed: %v", err) |
| } |
| defer server.Stop() |
| ep, err := server.Listen("tcp4", ":0") |
| iep := ep.(*inaming.Endpoint) |
| host, _, err := net.SplitHostPort(iep.Address) |
| if err != nil { |
| t.Errorf("unexpected error: %s", err) |
| } |
| if got, want := host, "1.1.1.1"; got != want { |
| t.Errorf("got %q, want %q", got, want) |
| } |
| // Won't override the specified address. |
| ep, err = server.Listen("tcp4", "127.0.0.1:0") |
| iep = ep.(*inaming.Endpoint) |
| host, _, err = net.SplitHostPort(iep.Address) |
| if err != nil { |
| t.Errorf("unexpected error: %s", err) |
| } |
| if got, want := host, "127.0.0.1"; got != want { |
| t.Errorf("got %q, want %q", got, want) |
| } |
| } |
| |
| func TestPreferredAddressErrors(t *testing.T) { |
| sm := imanager.InternalNew(naming.FixedRoutingID(0x555555555)) |
| defer sm.Shutdown() |
| ns := tnaming.NewSimpleNamespace() |
| paerr := func(string, []net.Addr) (net.Addr, error) { |
| return nil, fmt.Errorf("oops") |
| } |
| server, err := InternalNewServer(testContext(), sm, ns, vc.FixedLocalID(serverID), &veyron2.AddressChooserOpt{paerr}) |
| if err != nil { |
| t.Errorf("InternalNewServer failed: %v", err) |
| } |
| defer server.Stop() |
| ep, err := server.Listen("tcp4", ":0") |
| iep := ep.(*inaming.Endpoint) |
| host, _, err := net.SplitHostPort(iep.Address) |
| if err != nil { |
| t.Errorf("unexpected error: %s", err) |
| } |
| if got, want := host, "0.0.0.0"; got != want { |
| t.Errorf("got %q, want %q", got, want) |
| } |
| } |
| |
| type proxyHandle struct { |
| ns naming.Namespace |
| process *blackbox.Child |
| mount string |
| } |
| |
| func (h *proxyHandle) Start(t *testing.T) error { |
| h.process = blackbox.HelperCommand(t, "runProxy") |
| h.process.Cmd.Start() |
| var err error |
| if h.mount, err = h.process.ReadLineFromChild(); err != nil { |
| return err |
| } |
| if err := h.ns.Mount(testContext(), "proxy", h.mount, time.Hour); err != nil { |
| return err |
| } |
| return nil |
| } |
| |
| func (h *proxyHandle) Stop() error { |
| if h.process == nil { |
| return nil |
| } |
| h.process.Cleanup() |
| h.process = nil |
| if len(h.mount) == 0 { |
| return nil |
| } |
| return h.ns.Unmount(testContext(), "proxy", h.mount) |
| } |
| |
| func TestProxy(t *testing.T) { |
| sm := imanager.InternalNew(naming.FixedRoutingID(0x555555555)) |
| ns := tnaming.NewSimpleNamespace() |
| client, err := InternalNewClient(sm, ns, vc.FixedLocalID(clientID)) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer client.Close() |
| server, err := InternalNewServer(testContext(), sm, ns, vc.FixedLocalID(serverID)) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer server.Stop() |
| |
| name := "mountpoint/server/suffix" |
| makeCall := func() (string, error) { |
| call, err := client.StartCall(testContext(), name, "Echo", []interface{}{"batman"}) |
| if err != nil { |
| return "", err |
| } |
| var result string |
| if err = call.Finish(&result); err != nil { |
| return "", err |
| } |
| return result, nil |
| } |
| proxy := &proxyHandle{ns: ns} |
| if err := proxy.Start(t); err != nil { |
| t.Fatal(err) |
| } |
| defer proxy.Stop() |
| if _, err := server.Listen(inaming.Network, "proxy"); err != nil { |
| t.Fatal(err) |
| } |
| if err := server.Serve("mountpoint/server", testServerDisp{&testServer{}}); err != nil { |
| t.Fatal(err) |
| } |
| verifyMount(t, ns, name) |
| // Proxied endpoint should be published and RPC should succeed (through proxy) |
| const expected = `method:"Echo",suffix:"suffix",arg:"batman"` |
| if result, err := makeCall(); result != expected || err != nil { |
| t.Fatalf("Got (%v, %v) want (%v, nil)", result, err, expected) |
| } |
| |
| // Proxy dies, calls should fail and the name should be unmounted. |
| if err := proxy.Stop(); err != nil { |
| t.Fatal(err) |
| } |
| if result, err := makeCall(); err == nil { |
| t.Fatalf(`Got (%v, %v) want ("", <non-nil>) as proxy is down`, result, err) |
| } |
| for { |
| if _, err := ns.Resolve(testContext(), name); err != nil { |
| break |
| } |
| } |
| verifyMountMissing(t, ns, name) |
| |
| // Proxy restarts, calls should eventually start succeeding. |
| if err := proxy.Start(t); err != nil { |
| t.Fatal(err) |
| } |
| for { |
| if result, err := makeCall(); err == nil { |
| if result != expected { |
| t.Errorf("Got (%v, %v) want (%v, nil)", result, err, expected) |
| } |
| break |
| } |
| } |
| } |
| |
| func loadIdentityFromFile(file string) security.PrivateID { |
| f, err := os.Open(file) |
| if err != nil { |
| vlog.Fatalf("failed to open %v: %v", file, err) |
| } |
| id, err := vsecurity.LoadIdentity(f) |
| f.Close() |
| if err != nil { |
| vlog.Fatalf("Failed to load identity from %v: %v", file, err) |
| } |
| return id |
| } |
| |
| func runServer(argv []string) { |
| mgr := imanager.InternalNew(naming.FixedRoutingID(0x1111111)) |
| ns := tnaming.NewSimpleNamespace() |
| id := loadIdentityFromFile(argv[1]) |
| isecurity.TrustIdentityProviders(id) |
| server, err := InternalNewServer(testContext(), mgr, ns, vc.FixedLocalID(id)) |
| if err != nil { |
| vlog.Fatalf("InternalNewServer failed: %v", err) |
| } |
| disp := testServerDisp{new(testServer)} |
| if err := server.Serve("server", disp); err != nil { |
| vlog.Fatalf("server.Register failed: %v", err) |
| } |
| ep, err := server.Listen("tcp", argv[0]) |
| if err != nil { |
| vlog.Fatalf("server.Listen failed: %v", err) |
| } |
| fmt.Println(ep.Addr()) |
| // Live forever (parent process should explicitly kill us). |
| <-make(chan struct{}) |
| } |
| |
| func runProxy([]string) { |
| rid, err := naming.NewRoutingID() |
| if err != nil { |
| vlog.Fatal(err) |
| } |
| proxy, err := proxy.New(rid, nil, "tcp", "127.0.0.1:0", "") |
| if err != nil { |
| vlog.Fatal(err) |
| } |
| fmt.Println("/" + proxy.Endpoint().String()) |
| <-make(chan struct{}) |
| } |
| |
| // Required by blackbox framework. |
| func TestHelperProcess(t *testing.T) { |
| blackbox.HelperProcess(t) |
| } |
| |
| func init() { |
| isecurity.TrustIdentityProviders(clientID) |
| isecurity.TrustIdentityProviders(serverID) |
| |
| blackbox.CommandTable["runServer"] = runServer |
| blackbox.CommandTable["runProxy"] = runProxy |
| |
| vom.Register(fakeTimeCaveat(0)) |
| vom.Register(alwaysValidCaveat{}) |
| } |
