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client: rename WithServiceToken => WithAuthToken (#1887)

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ben-toogood 2020-07-31 11:36:33 +01:00 committed by GitHub
parent 83a64797fb
commit 0b73d411ad
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4 changed files with 68 additions and 843 deletions
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10
client/options.go
View File

@ -68,8 +68,8 @@ type CallOptions struct {
SelectOptions []selector.SelectOption
// Stream timeout for the stream
StreamTimeout time.Duration
// Use the services own auth token
ServiceToken bool
// Use the auth token as the authorization header
AuthToken bool
// Network to lookup the route within
Network string
@ -336,11 +336,11 @@ func WithDialTimeout(d time.Duration) CallOption {
}
}
// WithServiceToken is a CallOption which overrides the
// WithAuthToken is a CallOption which overrides the
// authorization header with the services own auth token
func WithServiceToken() CallOption {
func WithAuthToken() CallOption {
return func(o *CallOptions) {
o.ServiceToken = true
o.AuthToken = true
}
}

328
util/wrapper/wrapper.go
View File

@ -2,338 +2,10 @@ package wrapper
import (
"context"
"reflect"
"strings"
"github.com/micro/go-micro/v3/auth"
"github.com/micro/go-micro/v3/client"
"github.com/micro/go-micro/v3/debug/stats"
"github.com/micro/go-micro/v3/debug/trace"
"github.com/micro/go-micro/v3/errors"
"github.com/micro/go-micro/v3/metadata"
"github.com/micro/go-micro/v3/server"
)
type fromServiceWrapper struct {
client.Client
// headers to inject
headers metadata.Metadata
}
var (
HeaderPrefix = "Micro-"
)
func (f *fromServiceWrapper) setHeaders(ctx context.Context) context.Context {
// don't overwrite keys
return metadata.MergeContext(ctx, f.headers, false)
}
func (f *fromServiceWrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
ctx = f.setHeaders(ctx)
return f.Client.Call(ctx, req, rsp, opts...)
}
func (f *fromServiceWrapper) Stream(ctx context.Context, req client.Request, opts ...client.CallOption) (client.Stream, error) {
ctx = f.setHeaders(ctx)
return f.Client.Stream(ctx, req, opts...)
}
func (f *fromServiceWrapper) Publish(ctx context.Context, p client.Message, opts ...client.PublishOption) error {
ctx = f.setHeaders(ctx)
return f.Client.Publish(ctx, p, opts...)
}
// FromService wraps a client to inject service and auth metadata
func FromService(name string, c client.Client) client.Client {
return &fromServiceWrapper{
c,
metadata.Metadata{
HeaderPrefix + "From-Service": name,
},
}
}
// HandlerStats wraps a server handler to generate request/error stats
func HandlerStats(stats stats.Stats) server.HandlerWrapper {
// return a handler wrapper
return func(h server.HandlerFunc) server.HandlerFunc {
// return a function that returns a function
return func(ctx context.Context, req server.Request, rsp interface{}) error {
// execute the handler
err := h(ctx, req, rsp)
// record the stats
stats.Record(err)
// return the error
return err
}
}
}
type traceWrapper struct {
client.Client
name string
trace trace.Tracer
}
func (c *traceWrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
newCtx, s := c.trace.Start(ctx, req.Service()+"."+req.Endpoint())
s.Type = trace.SpanTypeRequestOutbound
err := c.Client.Call(newCtx, req, rsp, opts...)
if err != nil {
s.Metadata["error"] = err.Error()
}
// finish the trace
c.trace.Finish(s)
return err
}
// TraceCall is a call tracing wrapper
func TraceCall(name string, t trace.Tracer, c client.Client) client.Client {
return &traceWrapper{
name: name,
trace: t,
Client: c,
}
}
// TraceHandler wraps a server handler to perform tracing
func TraceHandler(t trace.Tracer) server.HandlerWrapper {
// return a handler wrapper
return func(h server.HandlerFunc) server.HandlerFunc {
// return a function that returns a function
return func(ctx context.Context, req server.Request, rsp interface{}) error {
// don't store traces for debug
if strings.HasPrefix(req.Endpoint(), "Debug.") {
return h(ctx, req, rsp)
}
// get the span
newCtx, s := t.Start(ctx, req.Service()+"."+req.Endpoint())
s.Type = trace.SpanTypeRequestInbound
err := h(newCtx, req, rsp)
if err != nil {
s.Metadata["error"] = err.Error()
}
// finish
t.Finish(s)
return err
}
}
}
type authWrapper struct {
client.Client
auth func() auth.Auth
}
func (a *authWrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
ctx = a.wrapContext(ctx, opts...)
return a.Client.Call(ctx, req, rsp, opts...)
}
func (a *authWrapper) Stream(ctx context.Context, req client.Request, opts ...client.CallOption) (client.Stream, error) {
ctx = a.wrapContext(ctx, opts...)
return a.Client.Stream(ctx, req, opts...)
}
func (a *authWrapper) wrapContext(ctx context.Context, opts ...client.CallOption) context.Context {
// parse the options
var options client.CallOptions
for _, o := range opts {
o(&options)
}
// check to see if the authorization header has already been set.
// We dont't override the header unless the ServiceToken option has
// been specified or the header wasn't provided
if _, ok := metadata.Get(ctx, "Authorization"); ok && !options.ServiceToken {
return ctx
}
// if auth is nil we won't be able to get an access token, so we execute
// the request without one.
aa := a.auth()
if aa == nil {
return ctx
}
// set the namespace header if it has not been set (e.g. on a service to service request)
if _, ok := metadata.Get(ctx, "Micro-Namespace"); !ok {
ctx = metadata.Set(ctx, "Micro-Namespace", aa.Options().Issuer)
}
// check to see if we have a valid access token
aaOpts := aa.Options()
if aaOpts.Token != nil && !aaOpts.Token.Expired() {
ctx = metadata.Set(ctx, "Authorization", auth.BearerScheme+aaOpts.Token.AccessToken)
return ctx
}
// call without an auth token
return ctx
}
// AuthClient wraps requests with the auth header
func AuthClient(auth func() auth.Auth, c client.Client) client.Client {
return &authWrapper{c, auth}
}
func AuthHandlerNamespace(ns string) AuthHandlerOption {
return func(o *AuthHandlerOptions) {
o.Namespace = ns
}
}
type AuthHandlerOption func(o *AuthHandlerOptions)
type AuthHandlerOptions struct {
Namespace string
}
// AuthHandler wraps a server handler to perform auth
func AuthHandler(fn func() auth.Auth, opts ...AuthHandlerOption) server.HandlerWrapper {
return func(h server.HandlerFunc) server.HandlerFunc {
return func(ctx context.Context, req server.Request, rsp interface{}) error {
// parse the options
options := AuthHandlerOptions{}
for _, o := range opts {
o(&options)
}
// get the auth.Auth interface
a := fn()
// Check for debug endpoints which should be excluded from auth
if strings.HasPrefix(req.Endpoint(), "Debug.") {
return h(ctx, req, rsp)
}
// Extract the token if the header is present. We will inspect the token regardless of if it's
// present or not since noop auth will return a blank account upon Inspecting a blank token.
var token string
if header, ok := metadata.Get(ctx, "Authorization"); ok {
// Ensure the correct scheme is being used
if !strings.HasPrefix(header, auth.BearerScheme) {
return errors.Unauthorized(req.Service(), "invalid authorization header. expected Bearer schema")
}
// Strip the bearer scheme prefix
token = strings.TrimPrefix(header, auth.BearerScheme)
}
// Inspect the token and decode an account
account, _ := a.Inspect(token)
// Extract the namespace header
ns, ok := metadata.Get(ctx, "Micro-Namespace")
if !ok {
ns = a.Options().Issuer
ctx = metadata.Set(ctx, "Micro-Namespace", ns)
}
// Check the issuer matches the services namespace. TODO: Stop allowing micro to access
// any namespace and instead check for the server issuer.
if account != nil && account.Issuer != ns && account.Issuer != "micro" {
return errors.Forbidden(req.Service(), "Account was issued by %v, not %v", account.Issuer, ns)
}
// construct the resource
res := &auth.Resource{
Type: "service",
Name: req.Service(),
Endpoint: req.Endpoint(),
}
// Normal services set the namespace to prevent it being overriden
// by setting the Namespace header, however this isn't the case for
// the proxy which uses the namespace header when routing requests
// to a specific network.
if len(options.Namespace) == 0 {
options.Namespace = ns
}
// Verify the caller has access to the resource.
err := a.Verify(account, res, auth.VerifyNamespace(options.Namespace))
if err == auth.ErrForbidden && account != nil {
return errors.Forbidden(req.Service(), "Forbidden call made to %v:%v by %v", req.Service(), req.Endpoint(), account.ID)
} else if err == auth.ErrForbidden {
return errors.Unauthorized(req.Service(), "Unauthorized call made to %v:%v", req.Service(), req.Endpoint())
} else if err != nil {
return errors.InternalServerError(req.Service(), "Error authorizing request: %v", err)
}
// There is an account, set it in the context
if account != nil {
ctx = auth.ContextWithAccount(ctx, account)
}
// The user is authorised, allow the call
return h(ctx, req, rsp)
}
}
}
type cacheWrapper struct {
cacheFn func() *client.Cache
client.Client
}
// Call executes the request. If the CacheExpiry option was set, the response will be cached using
// a hash of the metadata and request as the key.
func (c *cacheWrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
// parse the options
var options client.CallOptions
for _, o := range opts {
o(&options)
}
// if the client doesn't have a cacbe setup don't continue
cache := c.cacheFn()
if cache == nil {
return c.Client.Call(ctx, req, rsp, opts...)
}
// if the cache expiry is not set, execute the call without the cache
if options.CacheExpiry == 0 {
return c.Client.Call(ctx, req, rsp, opts...)
}
// if the response is nil don't call the cache since we can't assign the response
if rsp == nil {
return c.Client.Call(ctx, req, rsp, opts...)
}
// check to see if there is a response cached, if there is assign it
if r, ok := cache.Get(ctx, req); ok {
val := reflect.ValueOf(rsp).Elem()
val.Set(reflect.ValueOf(r).Elem())
return nil
}
// don't cache the result if there was an error
if err := c.Client.Call(ctx, req, rsp, opts...); err != nil {
return err
}
// set the result in the cache
cache.Set(ctx, req, rsp, options.CacheExpiry)
return nil
}
// CacheClient wraps requests with the cache wrapper
func CacheClient(cacheFn func() *client.Cache, c client.Client) client.Client {
return &cacheWrapper{cacheFn, c}
}
type staticClient struct {
address string
client.Client

82
util/wrapper/wrapper_static_client_test.go
View File

@ -1,82 +0,0 @@
package wrapper_test
import (
"context"
"testing"
"github.com/micro/go-micro/v3/broker"
bmemory "github.com/micro/go-micro/v3/broker/memory"
"github.com/micro/go-micro/v3/client"
"github.com/micro/go-micro/v3/client/grpc"
rmemory "github.com/micro/go-micro/v3/registry/memory"
"github.com/micro/go-micro/v3/router"
rtreg "github.com/micro/go-micro/v3/router/registry"
"github.com/micro/go-micro/v3/server"
grpcsrv "github.com/micro/go-micro/v3/server/grpc"
tmemory "github.com/micro/go-micro/v3/transport/memory"
wrapper "github.com/micro/go-micro/v3/util/wrapper"
)
type TestFoo struct {
}
type TestReq struct{}
type TestRsp struct {
Data string
}
func (h *TestFoo) Bar(ctx context.Context, req *TestReq, rsp *TestRsp) error {
rsp.Data = "pass"
return nil
}
func TestStaticClientWrapper(t *testing.T) {
var err error
req := grpc.NewClient().NewRequest(
"go.micro.service.foo",
"TestFoo.Bar",
&TestReq{},
client.WithContentType("application/json"),
)
rsp := &TestRsp{}
reg := rmemory.NewRegistry()
brk := bmemory.NewBroker(broker.Registry(reg))
tr := tmemory.NewTransport()
rtr := rtreg.NewRouter(router.Registry(reg))
srv := grpcsrv.NewServer(
server.Broker(brk),
server.Registry(reg),
server.Name("go.micro.service.foo"),
server.Address("127.0.0.1:0"),
server.Transport(tr),
)
if err = srv.Handle(srv.NewHandler(&TestFoo{})); err != nil {
t.Fatal(err)
}
if err = srv.Start(); err != nil {
t.Fatal(err)
}
cli := grpc.NewClient(
client.Router(rtr),
client.Broker(brk),
client.Transport(tr),
)
w1 := wrapper.StaticClient("xxx_localhost:12345", cli)
if err = w1.Call(context.TODO(), req, nil); err == nil {
t.Fatal("address xxx_#localhost:12345 must not exists and call must be failed")
}
w2 := wrapper.StaticClient(srv.Options().Address, cli)
if err = w2.Call(context.TODO(), req, rsp); err != nil {
t.Fatal(err)
} else if rsp.Data != "pass" {
t.Fatalf("something wrong with response: %#+v", rsp)
}
}

491
util/wrapper/wrapper_test.go
View File

@ -1,447 +1,82 @@
package wrapper
package wrapper_test
import (
"context"
"net/http"
"reflect"
"testing"
"time"
"github.com/micro/go-micro/v3/auth"
"github.com/micro/go-micro/v3/broker"
bmemory "github.com/micro/go-micro/v3/broker/memory"
"github.com/micro/go-micro/v3/client"
"github.com/micro/go-micro/v3/client/grpc"
"github.com/micro/go-micro/v3/errors"
"github.com/micro/go-micro/v3/metadata"
rmemory "github.com/micro/go-micro/v3/registry/memory"
"github.com/micro/go-micro/v3/router"
rtreg "github.com/micro/go-micro/v3/router/registry"
"github.com/micro/go-micro/v3/server"
grpcsrv "github.com/micro/go-micro/v3/server/grpc"
tmemory "github.com/micro/go-micro/v3/transport/memory"
wrapper "github.com/micro/go-micro/v3/util/wrapper"
)
func TestWrapper(t *testing.T) {
testData := []struct {
existing metadata.Metadata
headers metadata.Metadata
overwrite bool
}{
{
existing: metadata.Metadata{},
headers: metadata.Metadata{
"Foo": "bar",
},
overwrite: true,
},
{
existing: metadata.Metadata{
"Foo": "bar",
},
headers: metadata.Metadata{
"Foo": "baz",
},
overwrite: false,
},
}
for _, d := range testData {
c := &fromServiceWrapper{
headers: d.headers,
}
ctx := metadata.NewContext(context.Background(), d.existing)
ctx = c.setHeaders(ctx)
md, _ := metadata.FromContext(ctx)
for k, v := range d.headers {
if d.overwrite && md[k] != v {
t.Fatalf("Expected %s=%s got %s=%s", k, v, k, md[k])
}
if !d.overwrite && md[k] != d.existing[k] {
t.Fatalf("Expected %s=%s got %s=%s", k, d.existing[k], k, md[k])
}
}
}
type TestFoo struct {
}
type testAuth struct {
verifyCount int
inspectCount int
issuer string
inspectAccount *auth.Account
verifyError error
type TestReq struct{}
auth.Auth
type TestRsp struct {
Data string
}
func (a *testAuth) Verify(acc *auth.Account, res *auth.Resource, opts ...auth.VerifyOption) error {
a.verifyCount = a.verifyCount + 1
return a.verifyError
}
func (a *testAuth) Inspect(token string) (*auth.Account, error) {
a.inspectCount = a.inspectCount + 1
return a.inspectAccount, nil
}
func (a *testAuth) Options() auth.Options {
return auth.Options{Issuer: a.issuer}
}
type testRequest struct {
service string
endpoint string
server.Request
}
func (r testRequest) Service() string {
return r.service
}
func (r testRequest) Endpoint() string {
return r.endpoint
}
func TestAuthHandler(t *testing.T) {
h := func(ctx context.Context, req server.Request, rsp interface{}) error {
return nil
}
debugReq := testRequest{service: "go.micro.service.foo", endpoint: "Debug.Foo"}
serviceReq := testRequest{service: "go.micro.service.foo", endpoint: "Foo.Bar"}
// Debug endpoints should be excluded from auth so auth.Verify should never get called
t.Run("DebugEndpoint", func(t *testing.T) {
a := testAuth{}
handler := AuthHandler(func() auth.Auth {
return &a
})
err := handler(h)(context.TODO(), debugReq, nil)
if err != nil {
t.Errorf("Expected nil error but got %v", err)
}
if a.verifyCount != 0 {
t.Errorf("Did not expect verify to be called")
}
})
// If the Authorization header is invalid, an error should be returned and verify not called
t.Run("InvalidAuthorizationHeader", func(t *testing.T) {
a := testAuth{}
handler := AuthHandler(func() auth.Auth {
return &a
})
ctx := metadata.Set(context.TODO(), "Authorization", "Invalid")
err := handler(h)(ctx, serviceReq, nil)
if verr, ok := err.(*errors.Error); !ok || verr.Code != http.StatusUnauthorized {
t.Errorf("Expected unauthorized error but got %v", err)
}
if a.inspectCount != 0 {
t.Errorf("Did not expect inspect to be called")
}
})
// If the Authorization header is valid, no error should be returned and verify should called
t.Run("ValidAuthorizationHeader", func(t *testing.T) {
a := testAuth{}
handler := AuthHandler(func() auth.Auth {
return &a
})
ctx := metadata.Set(context.TODO(), "Authorization", auth.BearerScheme+"Token")
err := handler(h)(ctx, serviceReq, nil)
if err != nil {
t.Errorf("Expected nil error but got %v", err)
}
if a.inspectCount != 1 {
t.Errorf("Expected inspect to be called")
}
})
// If the issuer header was not set on the request, the wrapper should set it to the auths
// own issuer
t.Run("BlankIssuerHeader", func(t *testing.T) {
a := testAuth{issuer: "myissuer"}
handler := AuthHandler(func() auth.Auth {
return &a
})
inCtx := context.TODO()
h := func(ctx context.Context, req server.Request, rsp interface{}) error {
inCtx = ctx
return nil
}
err := handler(h)(inCtx, serviceReq, nil)
if err != nil {
t.Errorf("Expected nil error but got %v", err)
}
if ns, _ := metadata.Get(inCtx, "Micro-Namespace"); ns != a.issuer {
t.Errorf("Expected issuer to be set to %v but was %v", a.issuer, ns)
}
})
t.Run("ValidIssuerHeader", func(t *testing.T) {
a := testAuth{issuer: "myissuer"}
handler := AuthHandler(func() auth.Auth {
return &a
})
inNs := "reqissuer"
inCtx := metadata.Set(context.TODO(), "Micro-Namespace", inNs)
h := func(ctx context.Context, req server.Request, rsp interface{}) error {
inCtx = ctx
return nil
}
err := handler(h)(inCtx, serviceReq, nil)
if err != nil {
t.Errorf("Expected nil error but got %v", err)
}
if ns, _ := metadata.Get(inCtx, "Micro-Namespace"); ns != inNs {
t.Errorf("Expected issuer to remain as %v but was set to %v", inNs, ns)
}
})
// If the callers account was set but the issuer didn't match that of the request, the request
// should be forbidden
t.Run("InvalidAccountIssuer", func(t *testing.T) {
a := testAuth{
issuer: "validissuer",
inspectAccount: &auth.Account{Issuer: "invalidissuer"},
}
handler := AuthHandler(func() auth.Auth {
return &a
})
ctx := metadata.Set(context.TODO(), "Authorization", auth.BearerScheme+"Token")
err := handler(h)(ctx, serviceReq, nil)
if verr, ok := err.(*errors.Error); !ok || verr.Code != http.StatusForbidden {
t.Errorf("Expected forbidden error but got %v", err)
}
})
t.Run("ValidAccountIssuer", func(t *testing.T) {
a := testAuth{
issuer: "validissuer",
inspectAccount: &auth.Account{Issuer: "validissuer"},
}
handler := AuthHandler(func() auth.Auth {
return &a
})
ctx := metadata.Set(context.TODO(), "Authorization", auth.BearerScheme+"Token")
err := handler(h)(ctx, serviceReq, nil)
if err != nil {
t.Errorf("Expected nil error but got %v", err)
}
})
// If the caller had a nil account and verify returns an error, the request should be unauthorised
t.Run("NilAccountUnauthorized", func(t *testing.T) {
a := testAuth{verifyError: auth.ErrForbidden}
handler := AuthHandler(func() auth.Auth {
return &a
})
err := handler(h)(context.TODO(), serviceReq, nil)
if verr, ok := err.(*errors.Error); !ok || verr.Code != http.StatusUnauthorized {
t.Errorf("Expected unauthorizard error but got %v", err)
}
})
t.Run("AccountForbidden", func(t *testing.T) {
a := testAuth{verifyError: auth.ErrForbidden, inspectAccount: &auth.Account{}}
handler := AuthHandler(func() auth.Auth {
return &a
})
ctx := metadata.Set(context.TODO(), "Authorization", auth.BearerScheme+"Token")
err := handler(h)(ctx, serviceReq, nil)
if verr, ok := err.(*errors.Error); !ok || verr.Code != http.StatusForbidden {
t.Errorf("Expected forbidden error but got %v", err)
}
})
t.Run("AccountValid", func(t *testing.T) {
a := testAuth{inspectAccount: &auth.Account{}}
handler := AuthHandler(func() auth.Auth {
return &a
})
ctx := metadata.Set(context.TODO(), "Authorization", auth.BearerScheme+"Token")
err := handler(h)(ctx, serviceReq, nil)
if err != nil {
t.Errorf("Expected nil error but got %v", err)
}
})
// If an account is returned from inspecting the token, it should be set in the context
t.Run("ContextWithAccount", func(t *testing.T) {
accID := "myaccountid"
a := testAuth{inspectAccount: &auth.Account{ID: accID}}
handler := AuthHandler(func() auth.Auth {
return &a
})
inCtx := metadata.Set(context.TODO(), "Authorization", auth.BearerScheme+"Token")
h := func(ctx context.Context, req server.Request, rsp interface{}) error {
inCtx = ctx
return nil
}
err := handler(h)(inCtx, serviceReq, nil)
if err != nil {
t.Errorf("Expected nil error but got %v", err)
}
if acc, ok := auth.AccountFromContext(inCtx); !ok {
t.Errorf("Expected an account to be set in the context")
} else if acc.ID != accID {
t.Errorf("Expected the account in the context to have the ID %v but it actually had %v", accID, acc.ID)
}
})
// If verify returns an error the handler should not be called
t.Run("HandlerNotCalled", func(t *testing.T) {
a := testAuth{verifyError: auth.ErrForbidden}
handler := AuthHandler(func() auth.Auth {
return &a
})
var handlerCalled bool
h := func(ctx context.Context, req server.Request, rsp interface{}) error {
handlerCalled = true
return nil
}
ctx := metadata.Set(context.TODO(), "Authorization", auth.BearerScheme+"Token")
err := handler(h)(ctx, serviceReq, nil)
if verr, ok := err.(*errors.Error); !ok || verr.Code != http.StatusUnauthorized {
t.Errorf("Expected unauthorizard error but got %v", err)
}
if handlerCalled {
t.Errorf("Expected the handler to not be called")
}
})
// If verify does not return an error the handler should be called
t.Run("HandlerNotCalled", func(t *testing.T) {
a := testAuth{}
handler := AuthHandler(func() auth.Auth {
return &a
})
var handlerCalled bool
h := func(ctx context.Context, req server.Request, rsp interface{}) error {
handlerCalled = true
return nil
}
ctx := metadata.Set(context.TODO(), "Authorization", auth.BearerScheme+"Token")
err := handler(h)(ctx, serviceReq, nil)
if err != nil {
t.Errorf("Expected nil error but got %v", err)
}
if !handlerCalled {
t.Errorf("Expected the handler be called")
}
})
}
type testClient struct {
callCount int
callRsp interface{}
client.Client
}
func (c *testClient) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
c.callCount++
if c.callRsp != nil {
val := reflect.ValueOf(rsp).Elem()
val.Set(reflect.ValueOf(c.callRsp).Elem())
}
func (h *TestFoo) Bar(ctx context.Context, req *TestReq, rsp *TestRsp) error {
rsp.Data = "pass"
return nil
}
type testRsp struct {
value string
}
func TestCacheWrapper(t *testing.T) {
req := grpc.NewClient().NewRequest("go.micro.service.foo", "Foo.Bar", nil)
t.Run("NilCache", func(t *testing.T) {
cli := new(testClient)
w := CacheClient(func() *client.Cache {
return nil
}, cli)
// performing two requests should increment the call count by two indicating the cache wasn't
// used even though the WithCache option was passed.
w.Call(context.TODO(), req, nil, client.WithCache(time.Minute))
w.Call(context.TODO(), req, nil, client.WithCache(time.Minute))
if cli.callCount != 2 {
t.Errorf("Expected the client to have been called twice")
}
})
t.Run("OptionNotSet", func(t *testing.T) {
cli := new(testClient)
cache := client.NewCache()
w := CacheClient(func() *client.Cache {
return cache
}, cli)
// performing two requests should increment the call count by two since we didn't pass the WithCache
// option to Call.
w.Call(context.TODO(), req, nil)
w.Call(context.TODO(), req, nil)
if cli.callCount != 2 {
t.Errorf("Expected the client to have been called twice")
}
})
t.Run("OptionSet", func(t *testing.T) {
val := "foo"
cli := &testClient{callRsp: &testRsp{value: val}}
cache := client.NewCache()
w := CacheClient(func() *client.Cache {
return cache
}, cli)
// performing two requests should increment the call count by once since the second request should
// have used the cache. The correct value should be set on both responses and no errors should
// be returned.
rsp1 := &testRsp{}
rsp2 := &testRsp{}
err1 := w.Call(context.TODO(), req, rsp1, client.WithCache(time.Minute))
err2 := w.Call(context.TODO(), req, rsp2, client.WithCache(time.Minute))
if err1 != nil {
t.Errorf("Expected nil error, got %v", err1)
}
if err2 != nil {
t.Errorf("Expected nil error, got %v", err2)
}
if rsp1.value != val {
t.Errorf("Expected %v to be assigned to the value, got %v", val, rsp1.value)
}
if rsp2.value != val {
t.Errorf("Expected %v to be assigned to the value, got %v", val, rsp2.value)
}
if cli.callCount != 1 {
t.Errorf("Expected the client to be called 1 time, was actually called %v time(s)", cli.callCount)
}
})
func TestStaticClientWrapper(t *testing.T) {
var err error
req := grpc.NewClient().NewRequest(
"go.micro.service.foo",
"TestFoo.Bar",
&TestReq{},
client.WithContentType("application/json"),
)
rsp := &TestRsp{}
reg := rmemory.NewRegistry()
brk := bmemory.NewBroker(broker.Registry(reg))
tr := tmemory.NewTransport()
rtr := rtreg.NewRouter(router.Registry(reg))
srv := grpcsrv.NewServer(
server.Broker(brk),
server.Registry(reg),
server.Name("go.micro.service.foo"),
server.Address("127.0.0.1:0"),
server.Transport(tr),
)
if err = srv.Handle(srv.NewHandler(&TestFoo{})); err != nil {
t.Fatal(err)
}
if err = srv.Start(); err != nil {
t.Fatal(err)
}
cli := grpc.NewClient(
client.Router(rtr),
client.Broker(brk),
client.Transport(tr),
)
w1 := wrapper.StaticClient("xxx_localhost:12345", cli)
if err = w1.Call(context.TODO(), req, nil); err == nil {
t.Fatal("address xxx_#localhost:12345 must not exists and call must be failed")
}
w2 := wrapper.StaticClient(srv.Options().Address, cli)
if err = w2.Call(context.TODO(), req, rsp); err != nil {
t.Fatal(err)
} else if rsp.Data != "pass" {
t.Fatalf("something wrong with response: %#+v", rsp)
}
}