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jwt.go
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jwt.go
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// Copyright 2022 CloudWeGo Authors
//
// 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 mw
import (
"context"
"encoding/json"
"net/http"
"time"
"github.com/cloudwego/biz-demo/easy_note/cmd/api/rpc"
"github.com/cloudwego/biz-demo/easy_note/hertz_gen/demoapi"
"github.com/cloudwego/biz-demo/easy_note/kitex_gen/demouser"
"github.com/cloudwego/biz-demo/easy_note/pkg/consts"
"github.com/cloudwego/biz-demo/easy_note/pkg/errno"
"github.com/cloudwego/hertz/pkg/app"
"github.com/cloudwego/hertz/pkg/common/utils"
jwtv4 "github.com/golang-jwt/jwt/v4"
"github.com/hertz-contrib/jwt"
)
var JwtMiddleware *jwt.HertzJWTMiddleware
func InitJWT() {
JwtMiddleware, _ = jwt.New(&jwt.HertzJWTMiddleware{
Key: []byte(consts.SecretKey),
TokenLookup: "header: Authorization, query: token, cookie: jwt",
TokenHeadName: "Bearer",
TimeFunc: time.Now,
Timeout: time.Hour,
MaxRefresh: time.Hour,
IdentityKey: consts.IdentityKey,
IdentityHandler: func(ctx context.Context, c *app.RequestContext) interface{} {
claims := jwt.ExtractClaims(ctx, c)
userid, _ := claims[consts.IdentityKey].(json.Number).Int64()
return &demoapi.User{
UserID: userid,
}
},
PayloadFunc: func(data interface{}) jwt.MapClaims {
if v, ok := data.(int64); ok {
return jwt.MapClaims{
consts.IdentityKey: v,
}
}
return jwt.MapClaims{}
},
Authenticator: func(ctx context.Context, c *app.RequestContext) (interface{}, error) {
var err error
var req demoapi.CheckUserRequest
if err = c.BindAndValidate(&req); err != nil {
return "", jwt.ErrMissingLoginValues
}
if len(req.Username) == 0 || len(req.Password) == 0 {
return "", jwt.ErrMissingLoginValues
}
return rpc.CheckUser(context.Background(), &demouser.CheckUserRequest{
Username: req.Username,
Password: req.Password,
})
},
LoginResponse: func(ctx context.Context, c *app.RequestContext, code int, token string, expire time.Time) {
c.JSON(http.StatusOK, utils.H{
"code": errno.Success.ErrCode,
"token": token,
"expire": expire.Format(time.RFC3339),
})
},
Unauthorized: func(ctx context.Context, c *app.RequestContext, code int, message string) {
c.JSON(http.StatusOK, utils.H{
"code": errno.AuthorizationFailedErr.ErrCode,
"message": message,
})
},
HTTPStatusMessageFunc: func(e error, ctx context.Context, c *app.RequestContext) string {
switch t := e.(type) {
case errno.ErrNo:
return t.ErrMsg
default:
return t.Error()
}
},
ParseOptions: []jwtv4.ParserOption{jwtv4.WithJSONNumber()},
})
}