| package ipc |
| |
| import ( |
| "errors" |
| "fmt" |
| "io" |
| "net" |
| "os" |
| "reflect" |
| "strings" |
| "sync" |
| "testing" |
| "time" |
| |
| "veyron/lib/testutil" |
| "veyron/lib/testutil/blackbox" |
| imanager "veyron/runtimes/google/ipc/stream/manager" |
| "veyron/runtimes/google/ipc/stream/vc" |
| "veyron/runtimes/google/ipc/version" |
| inaming "veyron/runtimes/google/naming" |
| isecurity "veyron/runtimes/google/security" |
| "veyron/security/caveat" |
| |
| "veyron2" |
| "veyron2/ipc" |
| "veyron2/ipc/stream" |
| "veyron2/naming" |
| "veyron2/security" |
| "veyron2/verror" |
| "veyron2/vlog" |
| ) |
| |
| var ( |
| errMethod = verror.Abortedf("server returned an error") |
| clientID security.PrivateID |
| serverID security.PrivateID |
| ) |
| |
| var errAuthorizer = errors.New("ipc: application Authorizer denied access") |
| |
| type fakeContext struct{} |
| |
| 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) 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 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 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. |
| if suffix == "nilAuth" { |
| return ipc.ReflectInvoker(t.server), nil, nil |
| } |
| if suffix == "aclAuth" { |
| // Only authorize clients matching patterns "client" or "server/*". |
| acl := security.ACL{ |
| "server/*": security.LabelSet(security.AdminLabel), |
| "client": security.LabelSet(security.AdminLabel), |
| } |
| return ipc.ReflectInvoker(t.server), security.NewACLAuthorizer(acl), nil |
| } |
| return ipc.ReflectInvoker(t.server), testServerAuthorizer{}, nil |
| } |
| |
| // mountTable is a simple partial implementation of naming.MountTable. In |
| // particular, it ignores TTLs and not allow fully overlapping mount names. |
| type mountTable struct { |
| sync.Mutex |
| mounts map[string][]string |
| } |
| |
| func newMountTable() naming.MountTable { |
| return &mountTable{mounts: make(map[string][]string)} |
| } |
| |
| func (mt *mountTable) Mount(name, server string, _ time.Duration) error { |
| mt.Lock() |
| defer mt.Unlock() |
| for n, _ := range mt.mounts { |
| if n != name && (strings.HasPrefix(name, n) || strings.HasPrefix(n, name)) { |
| return fmt.Errorf("simple mount table does not allow names that are a prefix of each other") |
| } |
| } |
| mt.mounts[name] = append(mt.mounts[name], server) |
| return nil |
| } |
| |
| func (mt *mountTable) Unmount(name, server string) error { |
| var servers []string |
| mt.Lock() |
| defer mt.Unlock() |
| for _, s := range mt.mounts[name] { |
| // When server is "", we remove all servers under name. |
| if len(server) > 0 && s != server { |
| servers = append(servers, s) |
| } |
| } |
| if len(servers) > 0 { |
| mt.mounts[name] = servers |
| } else { |
| delete(mt.mounts, name) |
| } |
| return nil |
| } |
| |
| func (mt *mountTable) Resolve(name string) ([]string, error) { |
| if address, _ := naming.SplitAddressName(name); len(address) > 0 { |
| return []string{name}, nil |
| } |
| mt.Lock() |
| defer mt.Unlock() |
| for prefix, servers := range mt.mounts { |
| if strings.HasPrefix(name, prefix) { |
| suffix := strings.TrimLeft(strings.TrimPrefix(name, prefix), "/") |
| var ret []string |
| for _, s := range servers { |
| ret = append(ret, naming.Join(s, suffix)) |
| } |
| return ret, nil |
| } |
| } |
| return nil, verror.NotFoundf("Resolve name %q not found in %v", name, mt.mounts) |
| } |
| |
| func (mt *mountTable) ResolveToMountTable(name string) ([]string, error) { |
| panic("ResolveToMountTable not implemented") |
| return nil, nil |
| } |
| |
| func (mt *mountTable) Unresolve(name string) ([]string, error) { |
| panic("Unresolve not implemented") |
| return nil, nil |
| } |
| |
| func (mt *mountTable) Glob(pattern string) (chan naming.MountEntry, error) { |
| panic("Glob not implemented") |
| return nil, nil |
| } |
| |
| func (mt *mountTable) SetRoots([]string) error { |
| panic("SetRoots not implemented") |
| return nil |
| } |
| |
| func startServer(t *testing.T, serverID security.PrivateID, sm stream.Manager, mt naming.MountTable, ts interface{}) ipc.Server { |
| vlog.VI(1).Info("InternalNewServer") |
| server, err := InternalNewServer(sm, mt, veyron2.LocalID(serverID)) |
| if err != nil { |
| t.Errorf("InternalNewServer failed: %v", err) |
| } |
| vlog.VI(1).Info("server.Register") |
| disp := testServerDisp{ts} |
| if err := server.Register("server", disp); err != nil { |
| t.Errorf("server.Register failed: %v", err) |
| } |
| vlog.VI(1).Info("server.Listen") |
| if _, err := server.Listen("tcp", "localhost:0"); err != nil { |
| t.Errorf("server.Listen failed: %v", err) |
| } |
| vlog.VI(1).Info("server.Publish") |
| if err := server.Publish("mountpoint"); err != nil { |
| t.Errorf("server.Publish failed: %v", err) |
| } |
| return server |
| } |
| |
| func verifyMount(t *testing.T, mt naming.MountTable, name string) { |
| if _, err := mt.Resolve(name); err != nil { |
| t.Errorf("%s not found in mounttable", name) |
| } |
| } |
| |
| func verifyMountMissing(t *testing.T, mt naming.MountTable, name string) { |
| if servers, err := mt.Resolve(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, mt naming.MountTable) { |
| vlog.VI(1).Info("server.Stop") |
| verifyMount(t, mt, "mountpoint/server") |
| |
| // Check that we can still publish. |
| server.Publish("should_appear_in_mt") |
| verifyMount(t, mt, "should_appear_in_mt/server") |
| |
| if err := server.Stop(); err != nil { |
| t.Errorf("server.Stop failed: %v", err) |
| } |
| // Check that we can no longer publish after Stop. |
| server.Publish("should_not_appear_in_mt") |
| verifyMountMissing(t, mt, "should_not_appear_in_mt/server") |
| |
| verifyMountMissing(t, mt, "mountpoint/server") |
| verifyMountMissing(t, mt, "should_appear_in_mt/server") |
| verifyMountMissing(t, mt, "should_not_appear_in_mt/server") |
| vlog.VI(1).Info("server.Stop DONE") |
| } |
| |
| type bundle struct { |
| client ipc.Client |
| server ipc.Server |
| mt naming.MountTable |
| sm stream.Manager |
| } |
| |
| func (b bundle) cleanup(t *testing.T) { |
| stopServer(t, b.server, b.mt) |
| b.client.Close() |
| } |
| |
| func createBundle(t *testing.T, clientID, serverID security.PrivateID, ts interface{}) (b bundle) { |
| b.sm = imanager.InternalNew(naming.FixedRoutingID(0x555555555)) |
| b.mt = newMountTable() |
| b.server = startServer(t, serverID, b.sm, b.mt, ts) |
| var err error |
| b.client, err = InternalNewClient(b.sm, b.mt, veyron2.LocalID(clientID)) |
| if err != nil { |
| t.Fatalf("InternalNewClient failed: %v", err) |
| } |
| return |
| } |
| |
| func derive(blessor security.PrivateID, name string, caveats ...security.ServiceCaveat) security.PrivateID { |
| id, err := isecurity.NewPrivateID("irrelevant") |
| if err != nil { |
| panic(err) |
| } |
| blessedID, err := blessor.Bless(id.PublicID(), name, 5*time.Minute, caveats) |
| if err != nil { |
| panic(err) |
| } |
| derivedID, err := id.Derive(blessedID) |
| if err != nil { |
| panic(err) |
| } |
| return derivedID |
| } |
| |
| 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 TestStartCall(t *testing.T) { |
| authorizeErr := "has one or more invalid caveats" |
| nameErr := "does not have a name matching the provided pattern" |
| |
| cavOnlyV1 := security.UniversalCaveat(caveat.PeerIdentity{"client/v1"}) |
| now := time.Now() |
| 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.PrincipalPattern // 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}, |
| |
| // 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)) |
| mt := newMountTable() |
| for _, test := range tests { |
| name := fmt.Sprintf("(clientID:%q serverID:%q)", test.clientID, test.serverID) |
| server := startServer(t, test.serverID, mgr, mt, &testServer{}) |
| client, err := InternalNewClient(mgr, mt, veyron2.LocalID(test.clientID)) |
| if err != nil { |
| t.Errorf("%s: Client creation failed: %v", name, err) |
| stopServer(t, server, mt) |
| continue |
| } |
| if _, err := client.StartCall(&fakeContext{}, "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, mt) |
| } |
| } |
| |
| 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(&fakeContext{}, 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)) |
| if err := call.CloseSend(); err != nil { |
| 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 TestRPCAuthorization(t *testing.T) { |
| cavOnlyEcho := security.ServiceCaveat{ |
| Service: security.AllPrincipals, |
| Caveat: caveat.MethodRestriction{"Echo"}, |
| } |
| now := time.Now() |
| cavExpired := security.ServiceCaveat{ |
| Service: security.AllPrincipals, |
| Caveat: &caveat.Expiry{IssueTime: now, ExpiryTime: now}, |
| } |
| |
| blessedByServerOnlyEcho := derive(serverID, "onlyEcho", cavOnlyEcho) |
| blessedByServerExpired := derive(serverID, "expired", cavExpired) |
| blessedByClient := derive(clientID, "blessed") |
| |
| const ( |
| expiredIDErr = "forbids credential from being used at this time" |
| aclAuthErr = "no matching ACL entry found" |
| ) |
| invalidMethodErr := func(method string) string { |
| return fmt.Sprintf(`caveat.MethodRestriction{"Echo"} forbids invocation of method %s`, 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"}, |
| } |
| 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{}) |
| defer b.cleanup(t) |
| for _, test := range tests { |
| client, err := InternalNewClient(b.sm, b.mt, veyron2.LocalID(test.clientID)) |
| if err != nil { |
| t.Fatalf("InternalNewClient failed: %v", err) |
| } |
| defer client.Close() |
| call, err := client.StartCall(&fakeContext{}, test.name, test.method, test.args) |
| if err != nil { |
| t.Errorf(`%s client.StartCall got unexpected error: "%v"`, name(test), err) |
| continue |
| } |
| if err := call.CloseSend(); err != nil { |
| t.Errorf(`%s call.CloseSend got unexpected error: "%v"`, name(test), err) |
| } |
| 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 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 |
| } |
| if call.IsClosed() { |
| close(s.cancelled) |
| return nil |
| } |
| } |
| } |
| |
| // CancelStreamIgnorer doesn't read from it's input stream so all it's |
| // buffers fill. The intention is to show that call.IsClosed is updated |
| // even when the stream is stalled. |
| func (s *cancelTestServer) CancelStreamIgnorer(call ipc.ServerCall) error { |
| close(s.started) |
| for { |
| time.Sleep(time.Millisecond) |
| if call.IsClosed() { |
| close(s.cancelled) |
| return nil |
| } |
| } |
| } |
| |
| 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(&fakeContext{}, "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(&fakeContext{}, "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(&fakeContext{}, "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 := InternalNewPublisher(b.mt, 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(&fakeContext{}, "incompatible/server/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. |
| b.server.Publish("incompatible") |
| |
| call, err := b.client.StartCall(&fakeContext{}, "incompatible/server/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) |
| } |
| } |
| |
| // TestPublishOptions verifies that the options that are relevant to how |
| // a server publishes its endpoints have the right effect. |
| func TestPublishOptions(t *testing.T) { |
| sm := imanager.InternalNew(naming.FixedRoutingID(0x555555555)) |
| mt := newMountTable() |
| cases := []struct { |
| opts []ipc.ServerOpt |
| expect []string |
| }{ |
| {[]ipc.ServerOpt{}, []string{"127.0.0.1", "127.0.0.1"}}, |
| {[]ipc.ServerOpt{veyron2.PublishAll}, []string{"127.0.0.1", "127.0.0.1"}}, |
| {[]ipc.ServerOpt{veyron2.PublishFirst}, []string{"127.0.0.1"}}, |
| {[]ipc.ServerOpt{veyron2.EndpointRewriteOpt("example1.com"), veyron2.EndpointRewriteOpt("example2.com")}, []string{"example2.com", "example2.com"}}, |
| {[]ipc.ServerOpt{veyron2.PublishFirst, veyron2.EndpointRewriteOpt("example.com")}, []string{"example.com"}}, |
| } |
| for i, c := range cases { |
| server, err := InternalNewServer(sm, mt, append([]ipc.ServerOpt{veyron2.LocalID(serverID)}, c.opts...)...) |
| if err != nil { |
| t.Errorf("InternalNewServer failed: %v", err) |
| continue |
| } |
| if _, err := server.Listen("tcp", "localhost:0"); err != nil { |
| t.Errorf("server.Listen failed: %v", err) |
| server.Stop() |
| continue |
| } |
| if _, err := server.Listen("tcp", "localhost:0"); err != nil { |
| t.Errorf("server.Listen failed: %v", err) |
| server.Stop() |
| continue |
| } |
| if err := server.Publish("mountpoint"); err != nil { |
| t.Errorf("server.Publish failed: %v", err) |
| server.Stop() |
| continue |
| } |
| servers, err := mt.Resolve("mountpoint") |
| if err != nil { |
| t.Errorf("mountpoint not found in mounttable") |
| server.Stop() |
| continue |
| } |
| var got []string |
| for _, s := range servers { |
| address, _ := naming.SplitAddressName(s) |
| ep, err := inaming.NewEndpoint(address) |
| if err != nil { |
| t.Errorf("case #%d: server with invalid endpoint %q: %v", i, address, err) |
| continue |
| } |
| host, _, err := net.SplitHostPort(ep.Addr().String()) |
| if err != nil { |
| t.Errorf("case #%d: server endpoint with invalid address %q: %v", i, ep.Addr(), err) |
| continue |
| } |
| got = append(got, host) |
| } |
| if want := c.expect; !reflect.DeepEqual(want, got) { |
| t.Errorf("case #%d: expected mounted servers with addresses %q, got %q instead", i, want, got) |
| } |
| server.Stop() |
| } |
| } |
| |
| // 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 := testutil.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(), "server/suffix") |
| makeCall := func() (string, error) { |
| call, err := b.client.StartCall(&fakeContext{}, 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 loadIdentityFromFile(file string) security.PrivateID { |
| f, err := os.Open(file) |
| if err != nil { |
| vlog.Fatalf("failed to open %v: %v", file, err) |
| } |
| id, err := security.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)) |
| mt := newMountTable() |
| id := loadIdentityFromFile(argv[1]) |
| isecurity.TrustIdentityProviders(id) |
| server, err := InternalNewServer(mgr, mt, veyron2.LocalID(id)) |
| if err != nil { |
| vlog.Fatalf("InternalNewServer failed: %v", err) |
| } |
| disp := testServerDisp{new(testServer)} |
| if err := server.Register("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{}) |
| } |
| |
| // Required by blackbox framework. |
| func TestHelperProcess(t *testing.T) { |
| blackbox.HelperProcess(t) |
| } |
| |
| func init() { |
| var err error |
| if clientID, err = isecurity.NewPrivateID("client"); err != nil { |
| vlog.Fatalf("failed isecurity.NewPrivateID: %s", err) |
| } |
| if serverID, err = isecurity.NewPrivateID("server"); err != nil { |
| vlog.Fatalf("failed isecurity.NewPrivateID: %s", err) |
| } |
| isecurity.TrustIdentityProviders(clientID) |
| isecurity.TrustIdentityProviders(serverID) |
| |
| blackbox.CommandTable["runServer"] = runServer |
| } |
