Refactor auth to load token outside wrappers

auth/service/service.go

@@ -23,7 +23,6 @@ type svc struct {
 	auth    pb.AuthService
 	rule    pb.RulesService
 	jwt     token.Provider
-	addrs   []string
 
 	rules []*pb.Rule
 	sync.Mutex
@@ -71,7 +70,7 @@ func (s *svc) Generate(id string, opts ...auth.GenerateOption) (*auth.Account, e
 		Metadata:  options.Metadata,
 		Provider:  options.Provider,
 		Namespace: options.Namespace,
-	}, client.WithAddress(s.addrs...))
+	})
 	if err != nil {
 		return nil, err
 	}
@@ -90,7 +89,7 @@ func (s *svc) Grant(role string, res *auth.Resource) error {
 			Name:      res.Name,
 			Endpoint:  res.Endpoint,
 		},
-	}, client.WithAddress(s.addrs...))
+	})
 	return err
 }
 
@@ -105,7 +104,7 @@ func (s *svc) Revoke(role string, res *auth.Resource) error {
 			Name:      res.Name,
 			Endpoint:  res.Endpoint,
 		},
-	}, client.WithAddress(s.addrs...))
+	})
 	return err
 }
 
@@ -175,7 +174,7 @@ func (s *svc) Inspect(token string) (*auth.Account, error) {
 
 	// the token is not a JWT or we do not have the keys to decode it,
 	// fall back to the auth service
-	rsp, err := s.auth.Inspect(context.TODO(), &pb.InspectRequest{Token: token}, client.WithAddress(s.addrs...))
+	rsp, err := s.auth.Inspect(context.TODO(), &pb.InspectRequest{Token: token})
 	if err != nil {
 		return nil, err
 	}
@@ -191,7 +190,7 @@ func (s *svc) Token(opts ...auth.TokenOption) (*auth.Token, error) {
 		Secret:       options.Secret,
 		RefreshToken: options.RefreshToken,
 		TokenExpiry:  int64(options.Expiry.Seconds()),
-	}, client.WithAddress(s.addrs...))
+	})
 	if err != nil {
 		return nil, err
 	}
@@ -256,7 +255,7 @@ func (s *svc) listRules(filters ...string) []*pb.Rule {
 
 // loadRules retrieves the rules from the auth service
 func (s *svc) loadRules() {
-	rsp, err := s.rule.List(context.TODO(), &pb.ListRequest{}, client.WithAddress(s.addrs...))
+	rsp, err := s.rule.List(context.TODO(), &pb.ListRequest{})
 	s.Lock()
 	defer s.Unlock()
 
@@ -306,16 +305,10 @@ func NewAuth(opts ...auth.Option) auth.Auth {
 		options.Client = client.DefaultClient
 	}
 
-	addrs := options.Addrs
-	// if len(addrs) == 0 {
-	// 	addrs = []string{"127.0.0.1:8010"}
-	// }
-
 	service := &svc{
 		auth:    pb.NewAuthService("go.micro.auth", options.Client),
 		rule:    pb.NewRulesService("go.micro.auth", options.Client),
 		options: options,
-		addrs:   addrs,
 	}
 
 	// load rules periodically from the auth service

config/cmd/cmd.go

@@ -21,6 +21,7 @@ import (
 	"github.com/micro/go-micro/v2/debug/trace"
 	"github.com/micro/go-micro/v2/logger"
 	"github.com/micro/go-micro/v2/registry"
+	registrySrv "github.com/micro/go-micro/v2/registry/service"
 	"github.com/micro/go-micro/v2/runtime"
 	"github.com/micro/go-micro/v2/server"
 	"github.com/micro/go-micro/v2/store"
@@ -468,6 +469,22 @@ func (c *cmd) Before(ctx *cli.Context) error {
 	var serverOpts []server.Option
 	var clientOpts []client.Option
 
+	// Set the client. This must be first since we use the client below
+	if name := ctx.String("client"); len(name) > 0 {
+		// only change if we have the client and type differs
+		if cl, ok := c.opts.Clients[name]; ok && (*c.opts.Client).String() != name {
+			*c.opts.Client = cl()
+		}
+	}
+
+	// Set the server
+	if name := ctx.String("server"); len(name) > 0 {
+		// only change if we have the server and type differs
+		if s, ok := c.opts.Servers[name]; ok && (*c.opts.Server).String() != name {
+			*c.opts.Server = s()
+		}
+	}
+
 	// Set the store
 	if name := ctx.String("store"); len(name) > 0 {
 		s, ok := c.opts.Stores[name]
@@ -475,7 +492,7 @@ func (c *cmd) Before(ctx *cli.Context) error {
 			return fmt.Errorf("Unsupported store: %s", name)
 		}
 
-		*c.opts.Store = s()
+		*c.opts.Store = s(store.WithClient(*c.opts.Client))
 	}
 
 	// Set the runtime
@@ -485,7 +502,7 @@ func (c *cmd) Before(ctx *cli.Context) error {
 			return fmt.Errorf("Unsupported runtime: %s", name)
 		}
 
-		*c.opts.Runtime = r()
+		*c.opts.Runtime = r(runtime.WithClient(*c.opts.Client))
 	}
 
 	// Set the tracer
@@ -504,8 +521,7 @@ func (c *cmd) Before(ctx *cli.Context) error {
 		if !ok {
 			return fmt.Errorf("Unsupported auth: %s", name)
 		}
-
+		*c.opts.Auth = a(auth.WithClient(*c.opts.Client))
-		*c.opts.Auth = a()
 		serverOpts = append(serverOpts, server.Auth(*c.opts.Auth))
 	}
 
@@ -519,22 +535,6 @@ func (c *cmd) Before(ctx *cli.Context) error {
 		*c.opts.Profile = p()
 	}
 
-	// Set the client
-	if name := ctx.String("client"); len(name) > 0 {
-		// only change if we have the client and type differs
-		if cl, ok := c.opts.Clients[name]; ok && (*c.opts.Client).String() != name {
-			*c.opts.Client = cl()
-		}
-	}
-
-	// Set the server
-	if name := ctx.String("server"); len(name) > 0 {
-		// only change if we have the server and type differs
-		if s, ok := c.opts.Servers[name]; ok && (*c.opts.Server).String() != name {
-			*c.opts.Server = s()
-		}
-	}
-
 	// Set the broker
 	if name := ctx.String("broker"); len(name) > 0 && (*c.opts.Broker).String() != name {
 		b, ok := c.opts.Brokers[name]
@@ -554,7 +554,7 @@ func (c *cmd) Before(ctx *cli.Context) error {
 			return fmt.Errorf("Registry %s not found", name)
 		}
 
-		*c.opts.Registry = r()
+		*c.opts.Registry = r(registrySrv.WithClient(*c.opts.Client))
 		serverOpts = append(serverOpts, server.Registry(*c.opts.Registry))
 		clientOpts = append(clientOpts, client.Registry(*c.opts.Registry))
 

go.mod

@@ -47,6 +47,7 @@ require (
 	github.com/stretchr/testify v1.4.0
 	github.com/tmc/grpc-websocket-proxy v0.0.0-20200122045848-3419fae592fc // indirect
 	go.etcd.io/bbolt v1.3.4
+	go.etcd.io/etcd v3.3.20+incompatible
 	go.uber.org/zap v1.13.0
 	golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59
 	golang.org/x/net v0.0.0-20200301022130-244492dfa37a

go.sum

@@ -499,6 +499,8 @@ github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q
 go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.4 h1:hi1bXHMVrlQh6WwxAy+qZCV/SYIlqo+Ushwdpa4tAKg=
 go.etcd.io/bbolt v1.3.4/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
+go.etcd.io/etcd v3.3.20+incompatible h1:EyOVslCepyFB2JcbYXvqcYdBTh7cyBKU2NYdKfgTSC0=
+go.etcd.io/etcd v3.3.20+incompatible/go.mod h1:yaeTdrJi5lOmYerz05bd8+V7KubZs8YSFZfzsF9A6aI=
 go.opencensus.io v0.20.1/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
 go.opencensus.io v0.20.2/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=

service.go

@@ -7,6 +7,7 @@ import (
 	rtime "runtime"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/micro/go-micro/v2/auth"
 	"github.com/micro/go-micro/v2/client"
@@ -51,12 +52,6 @@ func newService(opts ...Option) Service {
 		server.WrapHandler(wrapper.AuthHandler(authFn)),
 	)
 
-	// set the client in the service implementations
-	// options.Auth.Init(auth.WithClient(options.Client))
-	// options.Registry.Init(registrySrv.WithClient(options.Client))
-	// options.Runtime.Init(runtime.WithClient(options.Client))
-	// options.Store.Init(store.WithClient(options.Client))
-
 	// set opts
 	service.opts = options
 
@@ -119,15 +114,6 @@ func (s *service) Init(opts ...Option) {
 		// Explicitly set the table name to the service name
 		name := s.opts.Cmd.App().Name
 		s.opts.Store.Init(store.Table(name))
-
-		// Reset the clients for the micro services, this is done
-		// previously in newService for micro (since init is never called)
-		// however it needs to be done again here since for normal go-micro
-		// services the implementation may have changed by CLI flags.
-		// s.opts.Auth.Init(auth.WithClient(s.Client()))
-		// s.opts.Registry.Init(registrySrv.WithClient(s.Client()))
-		// s.opts.Runtime.Init(runtime.WithClient(s.Client()))
-		// s.opts.Store.Init(store.WithClient(s.Client()))
 	})
 }
 
@@ -240,25 +226,70 @@ func (s *service) Run() error {
 }
 
 func (s *service) generateAccount() error {
-	// generate a new auth account for the service
+	// extract the account creds from options, these can be set by flags
+	accID := s.Options().Auth.Options().ID
+	accSecret := s.Options().Auth.Options().Secret
+
+	// if no credentials were provided, generate an account
+	if len(accID) == 0 || len(accSecret) == 0 {
 		name := fmt.Sprintf("%v-%v", s.Name(), s.Server().Options().Id)
 		opts := []auth.GenerateOption{
 			auth.WithType("service"),
 			auth.WithRoles("service"),
 			auth.WithNamespace(s.Options().Auth.Options().Namespace),
 		}
+
 		acc, err := s.Options().Auth.Generate(name, opts...)
 		if err != nil {
 			return err
 		}
+		logger.Infof("Auth [%v] Authenticated as %v", s.Options().Auth, name)
 
-	// generate a token
+		accID = acc.ID
-	token, err := s.Options().Auth.Token(auth.WithCredentials(acc.ID, acc.Secret))
+		accSecret = acc.Secret
+	}
+
+	// generate the first token
+	token, err := s.Options().Auth.Token(
+		auth.WithCredentials(accID, accSecret),
+		auth.WithExpiry(time.Minute*15),
+	)
 	if err != nil {
 		return err
 	}
 
-	s.Options().Auth.Init(auth.ClientToken(token), auth.Credentials(acc.ID, acc.Secret))
+	// set the credentials and token in auth options
-	logger.Infof("Auth [%v] Authenticated as %v", s.Options().Auth, name)
+	s.Options().Auth.Init(
+		auth.ClientToken(token),
+		auth.Credentials(accID, accSecret),
+	)
+
+	// periodically check to see if the token needs refreshing
+	go func() {
+		timer := time.NewTicker(time.Second * 15)
+
+		for {
+			<-timer.C
+
+			// don't refresh the token if it's not close to expiring
+			if token.Expiry.Unix() > time.Now().Add(time.Minute).Unix() {
+				continue
+			}
+
+			// generate the first token
+			token, err := s.Options().Auth.Token(
+				auth.WithCredentials(accID, accSecret),
+				auth.WithExpiry(time.Minute*15),
+			)
+			if err != nil {
+				logger.Warnf("[Auth] Error refreshing token: %v", err)
+				continue
+			}
+
+			// set the token
+			s.Options().Auth.Init(auth.ClientToken(token))
+		}
+	}()
+
 	return nil
 }

util/config/config.go

@@ -1,90 +0,0 @@
-package config
-
-import (
-	"io/ioutil"
-	"os"
-	"os/user"
-	"path/filepath"
-	"strings"
-
-	conf "github.com/micro/go-micro/v2/config"
-	"github.com/micro/go-micro/v2/config/source/file"
-	"github.com/micro/go-micro/v2/util/log"
-)
-
-// FileName for global micro config
-const FileName = ".micro"
-
-// config is a singleton which is required to ensure
-// each function call doesn't load the .micro file
-// from disk
-var config = newConfig()
-
-// Get a value from the .micro file
-func Get(path ...string) (string, error) {
-	tk := config.Get(path...).String("")
-	return strings.TrimSpace(tk), nil
-}
-
-// Set a value in the .micro file
-func Set(value string, path ...string) error {
-	// get the filepath
-	fp, err := filePath()
-	if err != nil {
-		return err
-	}
-
-	// set the value
-	config.Set(value, path...)
-
-	// write to the file
-	return ioutil.WriteFile(fp, config.Bytes(), 0644)
-}
-
-func filePath() (string, error) {
-	usr, err := user.Current()
-	if err != nil {
-		return "", err
-	}
-	return filepath.Join(usr.HomeDir, FileName), nil
-}
-
-// newConfig returns a loaded config
-func newConfig() conf.Config {
-	// get the filepath
-	fp, err := filePath()
-	if err != nil {
-		log.Error(err)
-		return conf.DefaultConfig
-	}
-
-	// write the file if it does not exist
-	if _, err := os.Stat(fp); os.IsNotExist(err) {
-		ioutil.WriteFile(fp, []byte{}, 0644)
-	} else if err != nil {
-		log.Error(err)
-		return conf.DefaultConfig
-	}
-
-	// create a new config
-	c, err := conf.NewConfig(
-		conf.WithSource(
-			file.NewSource(
-				file.WithPath(fp),
-			),
-		),
-	)
-	if err != nil {
-		log.Error(err)
-		return conf.DefaultConfig
-	}
-
-	// load the config
-	if err := c.Load(); err != nil {
-		log.Error(err)
-		return conf.DefaultConfig
-	}
-
-	// return the conf
-	return c
-}

util/wrapper/wrapper.go

@@ -12,7 +12,6 @@ import (
 	"github.com/micro/go-micro/v2/errors"
 	"github.com/micro/go-micro/v2/metadata"
 	"github.com/micro/go-micro/v2/server"
-	"github.com/micro/go-micro/v2/util/config"
 )
 
 type fromServiceWrapper struct {
@@ -159,50 +158,13 @@ func (a *authWrapper) Call(ctx context.Context, req client.Request, rsp interfac
 		return a.Client.Call(ctx, req, rsp, opts...)
 	}
 
-	// performs the call with the authorization token provided
-	callWithToken := func(token string) error {
-		ctx := metadata.Set(ctx, "Authorization", auth.BearerScheme+token)
-		return a.Client.Call(ctx, req, rsp, opts...)
-	}
-
 	// check to see if we have a valid access token
 	aaOpts := aa.Options()
 	if aaOpts.Token != nil && aaOpts.Token.Expiry.Unix() > time.Now().Unix() {
-		return callWithToken(aaOpts.Token.AccessToken)
+		ctx = metadata.Set(ctx, "Authorization", auth.BearerScheme+aaOpts.Token.AccessToken)
-	}
-
-	// check to ensure we're not calling auth, since this will result in
-	// an endless loop
-	if req.Service() == "go.micro.auth" {
 		return a.Client.Call(ctx, req, rsp, opts...)
 	}
 
-	// if we have a refresh token we can use this to generate another access token
-	if aaOpts.Token != nil {
-		tok, err := aa.Token(auth.WithToken(aaOpts.Token.RefreshToken))
-		if err != nil {
-			return err
-		}
-		aa.Init(auth.ClientToken(tok))
-		return callWithToken(tok.AccessToken)
-	}
-
-	// generate a new token if we have credentials
-	if len(aaOpts.ID) > 0 && len(aaOpts.Secret) > 0 {
-		tok, err := aa.Token(auth.WithCredentials(aaOpts.ID, aaOpts.Secret))
-		if err != nil {
-			return err
-		}
-		aa.Init(auth.ClientToken(tok))
-		return callWithToken(tok.AccessToken)
-	}
-
-	// check to see if a token was provided in config, this is normally used for
-	// setting the token when calling via the cli
-	if token, err := config.Get("micro", "auth", "token"); err == nil && len(token) > 0 {
-		return callWithToken(token)
-	}
-
 	// call without an auth token
 	return a.Client.Call(ctx, req, rsp, opts...)
 }