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/* openbills - Server for web based Libre Billing Software
* Copyright (C) 2023 Vidhu Kant Sharma <vidhukant@vidhukant.com>
*
* 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/gin-gonic/gin"
"github.com/golang-jwt/jwt/v5"
"github.com/spf13/viper"
"golang.org/x/crypto/bcrypt"
"vidhukant.com/openbills/user"
"net/http"
"time"
)
var (
COST int
AUTH_KEY, REFRESH_KEY []byte
)
func init() {
COST = viper.GetInt("cryptography.password_hashing_cost")
AUTH_KEY = []byte(viper.GetString("cryptography.auth_key"))
REFRESH_KEY = []byte(viper.GetString("cryptography.refresh_key"))
}
func handleSignUp (ctx *gin.Context) {
var user user.User
ctx.Bind(&user)
var err error
// hash password
var bytes []byte
bytes, err = bcrypt.GenerateFromPassword([]byte(user.Password), 14)
if err != nil {
// TODO: handle potential errors
ctx.Error(err)
ctx.Abort()
return
}
user.Password = string(bytes)
err = user.Create()
if err != nil {
ctx.Error(err)
ctx.Abort()
return
}
// remove password hash from response
user.Password = ""
ctx.JSON(http.StatusOK, gin.H{
"message": "success",
"data": user,
})
}
func handleSignIn (ctx *gin.Context) {
var req LoginReq
ctx.Bind(&req)
var err error
var u user.User
err = user.CheckPassword(&u, req.AccountName, req.Method, req.Password)
if err != nil {
// TODO: handle potential errors
ctx.Error(err)
ctx.Abort()
return
}
authToken, err := jwt.NewWithClaims(jwt.SigningMethodHS256,
AuthClaims {
jwt.RegisteredClaims {
IssuedAt: jwt.NewNumericDate(time.Now()),
ExpiresAt: jwt.NewNumericDate(time.Now().Add(time.Minute * 2)),
},
u.ID,
},
).SignedString(AUTH_KEY)
if err != nil {
// TODO: handle potential errors
ctx.Error(err)
ctx.Abort()
return
}
refreshToken, err := jwt.NewWithClaims(jwt.SigningMethodHS256,
AuthClaims {
jwt.RegisteredClaims {
IssuedAt: jwt.NewNumericDate(time.Now()),
ExpiresAt: jwt.NewNumericDate(time.Now().Add(time.Hour * 6)),
},
u.ID,
},
).SignedString(REFRESH_KEY)
if err != nil {
// TODO: handle potential errors
ctx.Error(err)
ctx.Abort()
return
}
// remove password hash from response
u.Password = ""
ctx.JSON(http.StatusOK, gin.H{
"auth_token": authToken,
"refresh_token": refreshToken,
"message": "success",
"data": u,
})
}
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