calf/middleware/jwt/jwt.go

package jwt

import (
	//"strings"

	"github.com/dgrijalva/jwt-go"
	"github.com/gin-gonic/gin"
	"../../pkg/e"
	"../../pkg/util"
	jwtGet "../../pkg/util"
)

func JWT() gin.HandlerFunc {
	return func(c *gin.Context) {
		var code int
		var data interface{}

		code = e.SUCCESS
		//Authorization := c.GetHeader("Authorization")
		//token := strings.Split(Authorization, " ")
		Authorization := c.GetHeader("token")
		token := Authorization
		if Authorization == "" {
			code = e.INVALID_PARAMS
		} else {
			//_, err := util.ParseToken(token[1])
			_, err := util.ParseToken(token)
			if err != nil {
				switch err.(*jwt.ValidationError).Errors {
				case jwt.ValidationErrorExpired:
					code = e.ERROR_AUTH_CHECK_TOKEN_TIMEOUT
				default:
					code = e.ERROR_AUTH_CHECK_TOKEN_FAIL
				}
			}
		}

		if code != e.SUCCESS {
			c.JSON(e.SUCCESS, gin.H{
				"code": code,
				"msg":  "登录超时",
				"data": data,
			})

			c.Abort()
			return
		}

		t, _ := jwt.Parse(token, func(*jwt.Token) (interface{}, error) {
			return jwtGet.JwtSecret, nil
		})
		c.Set("jwt_username",jwtGet.GetIdFromClaims("username", t.Claims))
		c.Next()
	}
}