support using json string to init session

server/web/session/ssdb/sess_ssdb.go

@@ -2,6 +2,7 @@ package ssdb
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
 	"net/http"
 	"strconv"
@@ -18,33 +19,48 @@ var ssdbProvider = &Provider{}
 // Provider holds ssdb client and configs
 type Provider struct {
 	client      *ssdb.Client
-	host        string
-	port        int
+	Host        string `json:"host"`
+	Port        int    `json:"port"`
 	maxLifetime int64
 }
 
 func (p *Provider) connectInit() error {
 	var err error
-	if p.host == "" || p.port == 0 {
+	if p.Host == "" || p.Port == 0 {
 		return errors.New("SessionInit First")
 	}
-	p.client, err = ssdb.Connect(p.host, p.port)
+	p.client, err = ssdb.Connect(p.Host, p.Port)
 	return err
 }
 
 // SessionInit init the ssdb with the config
-func (p *Provider) SessionInit(ctx context.Context, maxLifetime int64, savePath string) error {
+func (p *Provider) SessionInit(ctx context.Context, maxLifetime int64, cfg string) error {
 	p.maxLifetime = maxLifetime
-	address := strings.Split(savePath, ":")
-	p.host = address[0]
 
+	cfg = strings.TrimSpace(cfg)
 	var err error
-	if p.port, err = strconv.Atoi(address[1]); err != nil {
+	// we think this is v2.0, using json to init the session
+	if strings.HasPrefix(cfg, "{") {
+		err = json.Unmarshal([]byte(cfg), p)
+	} else {
+		err = p.initOldStyle(cfg)
+	}
+	if err != nil {
 		return err
 	}
 	return p.connectInit()
 }
 
+// for v1.x
+func (p *Provider) initOldStyle(savePath string) error {
+	address := strings.Split(savePath, ":")
+	p.Host = address[0]
+
+	var err error
+	p.Port, err = strconv.Atoi(address[1])
+	return err
+}
+
 // SessionRead return a ssdb client session Store
 func (p *Provider) SessionRead(ctx context.Context, sid string) (session.Store, error) {
 	if p.client == nil {

server/web/session/ssdb/sess_ssdb_test.go

@@ -0,0 +1,41 @@
+// Copyright 2020
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ssdb
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestProvider_SessionInit(t *testing.T) {
+	// using old style
+	savePath := `localhost:8080`
+	cp := &Provider{}
+	cp.SessionInit(context.Background(), 12, savePath)
+	assert.Equal(t, "localhost", cp.Host)
+	assert.Equal(t, 8080, cp.Port)
+	assert.Equal(t, int64(12), cp.maxLifetime)
+
+	savePath = `
+{ "host": "localhost", "port": 8080}
+`
+	cp = &Provider{}
+	cp.SessionInit(context.Background(), 12, savePath)
+	assert.Equal(t, "localhost", cp.Host)
+	assert.Equal(t, 8080, cp.Port)
+	assert.Equal(t, int64(12), cp.maxLifetime)
+}