Bring in the list APIs implemented by Bala <bala@minio.io>

web-handlers.go

@@ -0,0 +1,122 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/dgrijalva/jwt-go"
+	"github.com/minio/minio-go"
+)
+
+func isAuthenticated(req *http.Request) bool {
+	authBackend := InitJWT()
+	tokenRequest, err := jwt.ParseFromRequest(req, func(token *jwt.Token) (interface{}, error) {
+		if _, ok := token.Method.(*jwt.SigningMethodRSA); !ok {
+			return nil, fmt.Errorf("Unexpected signing method: %v", token.Header["alg"])
+		}
+		return authBackend.PublicKey, nil
+	})
+	if err != nil {
+		return false
+	}
+	return tokenRequest.Valid
+}
+
+// ListBuckets - list buckets api.
+func (web *WebAPI) ListBuckets(r *http.Request, args *ListBucketsArgs, reply *[]minio.BucketInfo) error {
+	if !isAuthenticated(r) {
+		return errUnAuthorizedRequest
+	}
+	client, err := minio.New("localhost:9000", web.AccessKeyID, web.SecretAccessKey, true)
+	if err != nil {
+		return err
+	}
+	buckets, err := client.ListBuckets()
+	if err != nil {
+		return err
+	}
+	*reply = buckets
+	return nil
+}
+
+// ListObjects - list objects api.
+func (web *WebAPI) ListObjects(r *http.Request, args *ListObjectsArgs, reply *[]minio.ObjectInfo) error {
+	if !isAuthenticated(r) {
+		return errUnAuthorizedRequest
+	}
+	client, err := minio.New("localhost:9000", web.AccessKeyID, web.SecretAccessKey, true)
+	if err != nil {
+		return err
+	}
+	doneCh := make(chan struct{})
+	defer close(doneCh)
+
+	var objects []minio.ObjectInfo
+	for object := range client.ListObjects(args.BucketName, args.Prefix, false, doneCh) {
+		if object.Err != nil {
+			return object.Err
+		}
+		objects = append(objects, object)
+	}
+	*reply = objects
+	return nil
+}
+
+// GetObjectURL - get object url.
+func (web *WebAPI) GetObjectURL(r *http.Request, args *GetObjectURLArgs, reply *string) error {
+	if !isAuthenticated(r) {
+		return errUnAuthorizedRequest
+	}
+	client, err := minio.New("localhost:9000", web.AccessKeyID, web.SecretAccessKey, true)
+	if err != nil {
+		return err
+	}
+	urlStr, err := client.PresignedGetObject(args.BucketName, args.ObjectName, time.Duration(60*60)*time.Second)
+	if err != nil {
+		return err
+	}
+	*reply = urlStr
+	return nil
+}
+
+// Login - user login handler.
+func (web *WebAPI) Login(r *http.Request, args *LoginArgs, reply *AuthToken) error {
+	authBackend := InitJWT()
+	if authBackend.Authenticate(args, web.AccessKeyID, web.SecretAccessKey) {
+		token, err := authBackend.GenerateToken(args.Username)
+		if err != nil {
+			return err
+		}
+		reply.Token = token
+		return nil
+	}
+	return errUnAuthorizedRequest
+}
+
+// RefreshToken - refresh token handler.
+func (web *WebAPI) RefreshToken(r *http.Request, args *LoginArgs, reply *AuthToken) error {
+	if isAuthenticated(r) {
+		authBackend := InitJWT()
+		token, err := authBackend.GenerateToken(args.Username)
+		if err != nil {
+			return err
+		}
+		reply.Token = token
+		return nil
+	}
+	return errUnAuthorizedRequest
+}
+
+// Logout - user logout.
+func (web *WebAPI) Logout(r *http.Request, arg *string, reply *string) error {
+	if isAuthenticated(r) {
+		authBackend := InitJWT()
+		tokenString := r.Header.Get("Authorization")
+		if err := authBackend.Logout(tokenString); err != nil {
+			return err
+		}
+		return nil
+	}
+	return errUnAuthorizedRequest
+}