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/* OpenBills-server - Server for libre billing software OpenBills-web
* Copyright (C) 2022 Vidhu Kant Sharma <vidhukant@vidhukant.xyz>
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package auth
import (
"github.com/MikunoNaka/OpenBills-server/user"
"go.mongodb.org/mongo-driver/bson/primitive"
"go.mongodb.org/mongo-driver/bson"
"github.com/golang-jwt/jwt/v4"
"github.com/gin-gonic/gin"
"net/http"
"context"
)
func Authorize() gin.HandlerFunc {
return func(ctx *gin.Context) {
tokenHeader := ctx.Request.Header["Authorization"]
if tokenHeader != nil {
token, err := jwt.ParseWithClaims(tokenHeader[0], &jwt.StandardClaims{}, func(token *jwt.Token) (interface{}, error) {
return []byte(accessSecret), nil
})
if err != nil {
ctx.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"message": "access token expired"})
} else {
ctx.Set("userId", token.Claims.(*jwt.StandardClaims).Issuer)
ctx.Next()
}
} else {
// invalid Authorization header
ctx.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"message": "not logged in"})
}
}
}
func verifyRefreshToken() gin.HandlerFunc {
return func(ctx *gin.Context) {
refreshToken, err := ctx.Cookie("refreshToken")
if err == nil {
token, err := jwt.ParseWithClaims(refreshToken, &jwt.StandardClaims{}, func(token *jwt.Token) (interface{}, error) {
return []byte(refreshSecret), nil
})
if err != nil { // invalid token
ctx.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"message": "refresh token expired"})
} else { // valid token
// convert id from string to ObjectID
id, _ := primitive.ObjectIDFromHex(token.Claims.(*jwt.StandardClaims).Issuer)
// check if user exists
var u user.User
if err := db.FindOne(context.TODO(), bson.M{"_id": id}).Decode(&u); err != nil {
ctx.AbortWithStatusJSON(http.StatusNotFound, gin.H{"message": "user not found"})
} else {
// check if this refreshToken is in DB
for _, i := range u.Sessions {
if i.Token == refreshToken {
ctx.Set("user", u)
ctx.Next()
} else {
ctx.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"message": "refresh token expired"})
}
}
}
}
} else {
// invalid Authorization header
ctx.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"message": "not logged in"})
}
}
}
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