63 lines
1.5 KiB
Go
63 lines
1.5 KiB
Go
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package jwt
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import (
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"mini_server/internal/config"
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"mini_server/internal/dao"
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"net/http"
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"time"
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"github.com/dgrijalva/jwt-go"
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"github.com/gin-gonic/gin"
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)
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var jwtKey = []byte(config.JwtKey)
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type Claims struct {
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Username string `json:"username"`
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ID int32 `json:"id"`
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jwt.StandardClaims
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}
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func CreateToken(user *dao.User) (string, error) {
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, &Claims{
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ID: user.ID,
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Username: user.Username,
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StandardClaims: jwt.StandardClaims{
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ExpiresAt: jwt.TimeFunc().Add(time.Hour * 24).Unix(), // Token expires in 24 hours
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IssuedAt: jwt.TimeFunc().Unix(),
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},
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})
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return token.SignedString(jwtKey)
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}
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func AuthenticateToken(tokenString string) (*Claims, error) {
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token, err := jwt.ParseWithClaims(tokenString, &Claims{}, func(token *jwt.Token) (interface{}, error) {
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return jwtKey, nil
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})
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if claims, ok := token.Claims.(*Claims); ok && token.Valid {
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return claims, nil
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} else {
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return nil, err
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}
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}
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func AuthMiddleware() gin.HandlerFunc {
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return func(ctx *gin.Context) {
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if !withinWhiteList(ctx.Request.URL, ctx.Request.Method) {
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tokenString := ctx.GetHeader("Authorization")
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if tokenString == "" {
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ctx.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "Unauthorized"})
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return
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}
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claims, err := AuthenticateToken(tokenString)
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if err != nil {
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ctx.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "Unauthorized"})
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return
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}
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ctx.Set("user", claims)
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}
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ctx.Next()
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}
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}
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