Fixed bug

.gitignore

@@ -24,3 +24,4 @@ _testmain.go
 *.prof
 *.swp
 /examples/server
+/examples/data.db

README.md

@@ -24,15 +24,15 @@ import (
 	"github.com/go-oauth2/gin-server"
 	"gopkg.in/oauth2.v3/manage"
 	"gopkg.in/oauth2.v3/models"
-	aserver "gopkg.in/oauth2.v3/server"
+	"gopkg.in/oauth2.v3/server"
 	"gopkg.in/oauth2.v3/store"
 )
 
 func main() {
 	manager := manage.NewDefaultManager()
 
 	// token store
-	manager.MustTokenStorage(store.NewMemoryTokenStore())
+	manager.MustTokenStorage(store.NewFileTokenStore("data.db"))
 
 	// client store
 	clientStore := store.NewClientStore()
@@ -44,22 +44,22 @@ func main() {
 	manager.MapClientStorage(clientStore)
 
 	// Initialize the oauth2 service
-	server.InitServer(manager)
-	server.SetAllowGetAccessRequest(true)
-	server.SetClientInfoHandler(aserver.ClientFormHandler)
+	ginserver.InitServer(manager)
+	ginserver.SetAllowGetAccessRequest(true)
+	ginserver.SetClientInfoHandler(server.ClientFormHandler)
 
 	g := gin.Default()
 
 	auth := g.Group("/oauth2")
 	{
-		auth.GET("/token", server.HandleTokenRequest)
+		auth.GET("/token", ginserver.HandleTokenRequest)
 	}
 
 	api := g.Group("/api")
 	{
-		api.Use(server.HandleTokenVerify())
+		api.Use(ginserver.HandleTokenVerify())
 		api.GET("/test", func(c *gin.Context) {
-			ti, exists := c.Get("AccessToken")
+			ti, exists := c.Get(ginserver.DefaultConfig.TokenKey)
 			if exists {
 				c.JSON(http.StatusOK, ti)
 				return

config.go

@@ -1,4 +1,4 @@
-package server
+package ginserver
 
 import (
 	"gopkg.in/oauth2.v3"

examples/server.go

@@ -7,15 +7,15 @@ import (
 	"github.com/go-oauth2/gin-server"
 	"gopkg.in/oauth2.v3/manage"
 	"gopkg.in/oauth2.v3/models"
-	aserver "gopkg.in/oauth2.v3/server"
+	"gopkg.in/oauth2.v3/server"
 	"gopkg.in/oauth2.v3/store"
 )
 
 func main() {
 	manager := manage.NewDefaultManager()
 
 	// token store
-	manager.MustTokenStorage(store.NewMemoryTokenStore())
+	manager.MustTokenStorage(store.NewFileTokenStore("data.db"))
 
 	// client store
 	clientStore := store.NewClientStore()
@@ -27,22 +27,22 @@ func main() {
 	manager.MapClientStorage(clientStore)
 
 	// Initialize the oauth2 service
-	server.InitServer(manager)
-	server.SetAllowGetAccessRequest(true)
-	server.SetClientInfoHandler(aserver.ClientFormHandler)
+	ginserver.InitServer(manager)
+	ginserver.SetAllowGetAccessRequest(true)
+	ginserver.SetClientInfoHandler(server.ClientFormHandler)
 
 	g := gin.Default()
 
 	auth := g.Group("/oauth2")
 	{
-		auth.GET("/token", server.HandleTokenRequest)
+		auth.GET("/token", ginserver.HandleTokenRequest)
 	}
 
 	api := g.Group("/api")
 	{
-		api.Use(server.HandleTokenVerify())
+		api.Use(ginserver.HandleTokenVerify())
 		api.GET("/test", func(c *gin.Context) {
-			ti, exists := c.Get("AccessToken")
+			ti, exists := c.Get(ginserver.DefaultConfig.TokenKey)
 			if exists {
 				c.JSON(http.StatusOK, ti)
 				return

middleware.go

@@ -0,0 +1,65 @@
+package ginserver
+
+import (
+	"github.com/gin-gonic/gin"
+)
+
+type (
+	// ErrorHandleFunc error handling function
+	ErrorHandleFunc func(*gin.Context, error)
+	// Config defines the config for Session middleware
+	Config struct {
+		// error handling when starting the session
+		ErrorHandleFunc ErrorHandleFunc
+		// keys stored in the context
+		TokenKey string
+		// defines a function to skip middleware.Returning true skips processing
+		// the middleware.
+		Skipper func(*gin.Context) bool
+	}
+)
+
+var (
+	// DefaultConfig is the default middleware config.
+	DefaultConfig = Config{
+		ErrorHandleFunc: func(ctx *gin.Context, err error) {
+			ctx.AbortWithError(500, err)
+		},
+		TokenKey: "github.com/go-oauth2/gin-server/access-token",
+		Skipper: func(_ *gin.Context) bool {
+			return false
+		},
+	}
+)
+
+// HandleTokenVerify Verify the access token of the middleware
+func HandleTokenVerify(config ...Config) gin.HandlerFunc {
+	cfg := DefaultConfig
+	if len(config) > 0 {
+		cfg = config[0]
+	}
+
+	if cfg.ErrorHandleFunc == nil {
+		cfg.ErrorHandleFunc = DefaultConfig.ErrorHandleFunc
+	}
+
+	tokenKey := cfg.TokenKey
+	if tokenKey == "" {
+		tokenKey = DefaultConfig.TokenKey
+	}
+
+	return func(c *gin.Context) {
+		if cfg.Skipper != nil && cfg.Skipper(c) {
+			c.Next()
+			return
+		}
+		ti, err := gServer.ValidationBearerToken(c.Request)
+		if err != nil {
+			cfg.ErrorHandleFunc(c, err)
+			return
+		}
+
+		c.Set(tokenKey, ti)
+		c.Next()
+	}
+}

server.go

@@ -1,7 +1,8 @@
-package server
+package ginserver
 
 import (
 	"net/http"
+	"sync"
 
 	"github.com/gin-gonic/gin"
 	"gopkg.in/oauth2.v3"
@@ -10,14 +11,14 @@ import (
 
 var (
 	gServer *server.Server
+	once    sync.Once
 )
 
 // InitServer Initialize the service
 func InitServer(manager oauth2.Manager) *server.Server {
-	if err := manager.CheckInterface(); err != nil {
-		panic(err)
-	}
-	gServer = server.NewDefaultServer(manager)
+	once.Do(func() {
+		gServer = server.NewDefaultServer(manager)
+	})
 	return gServer
 }
 
@@ -40,18 +41,3 @@ func HandleTokenRequest(c *gin.Context) {
 	}
 	c.Abort()
 }
-
-// HandleTokenVerify Verify the access token of the middleware
-func HandleTokenVerify() gin.HandlerFunc {
-	return func(c *gin.Context) {
-
-		ti, err := gServer.ValidationBearerToken(c.Request)
-		if err != nil {
-			c.AbortWithError(http.StatusUnauthorized, err)
-			return
-		}
-
-		c.Set("AccessToken", ti)
-		c.Next()
-	}
-}