golang简单的jwt生成器和解析器brianvoe/sjwt库实践

package ceshi

import (

    "time"

    "github.com/brianvoe/sjwt"

    "github.com/gin-gonic/gin"

)

var CeshiController *ceshiController

type ceshiController struct{}

func (*ceshiController) CreateToken(ctx *gin.Context) {

    claims := sjwt.New()

    claims.SetTokenID()                                       // UUID generated

    claims.SetSubject("Subject Title")                        // Subject of the token

    claims.SetIssuer("Google")                                // Issuer of the token

    claims.SetAudience([]string{"Google", "Facebook"})        // Audience the toke is for

    claims.SetIssuedAt(time.Now())                            // 签发时间

    claims.SetNotBeforeAt(time.Now())                         // 生效时间

    claims.SetExpiresAt(time.Now().Add(time.Hour * 24 * 365)) // Token expires in 1 year

    claims.Set("user_id", 100) //PublicClaims

    jwt_secret := []byte("123456")

    jwt := claims.Generate(jwt_secret)

    ctx.JSON(200, jwt)

}

func (*ceshiController) ParseToken(ctx *gin.Context) {

    jwt_secret := []byte("123456")

    jwt := ctx.Request.Header.Get("Authorization")

    //jwt := "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhdWQiOlsiR29vZ2xlIiwiRmFjZWJvb2siXSwiZXhwIjoxNzIxODA1ODAzLCJpYXQiOjE2OTAyNjk4MDMsImlzcyI6Ikdvb2dsZSIsImp0aSI6ImRhZTZkMjQyLWMyZDgtNDUzMS1iNzhmLWRiMjQzNDUxZjFkZSIsIm5iZiI6MTY5MDI2OTgwMywic3ViIjoiU3ViamVjdCBUaXRsZSIsInVzZXJfaWQiOjEwMH0.JRh3igLvHKggfZxqwa6EdXFCJEvzITjKbDvGzPofDok"

    if jwt == "" {

        ctx.JSON(400, "令牌不能为空")

        return

    }

    // 验证token

    ok := sjwt.Verify(jwt, jwt_secret)

    if !ok {

        ctx.JSON(400, "令牌验证失败")

        return

    }

    //解析token

    claims, err := sjwt.Parse(jwt)

    if err != nil {

        ctx.JSON(400, "令牌解析错误")

        return

    }

    //验证token是否过期

    err = claims.Validate()

    if err != nil {

        ctx.JSON(400, err.Error())

        return

    }

    user_id, _ := claims.GetInt("user_id")

    //ctx.Set("user_id", user_id)

    var data = make(map[string]any, 0)

    data["user_id"] = user_id

    ctx.JSON(200, data)

}