105 lines
2.8 KiB
Go
105 lines
2.8 KiB
Go
package middleware
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import (
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"errors"
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"net/http"
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"os"
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"strings"
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"time"
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"github.com/gin-gonic/gin"
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"github.com/golang-jwt/jwt/v4"
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"backendcareit/models"
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)
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// Payload untuk login dokter - berisi credensial yang diperlukan
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var jwtSecret = []byte(getJWTSecret())
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func getJWTSecret() string {
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if secret := os.Getenv("JWT_SECRET"); secret != "" {
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return secret
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}
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return "SECRET_KAMU"
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}
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// LoginDokterHandler - Ini handler POST /login yang ngecek kredensial dokter
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// Kalau cocok, langsung kasih JWT ke dia
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// GenerateToken - Bikin JWT buat dokter, berlaku 24 jam terus expired hehe
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func GenerateToken(dokter models.Dokter, email string) (string, error) {
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claims := jwt.MapClaims{
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"id": dokter.ID_Dokter,
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"nama": dokter.Nama_Dokter,
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"ksm": dokter.KSM,
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"email": email,
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"exp": time.Now().Add(24 * time.Hour).Unix(),
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"iat": time.Now().Unix(),
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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return token.SignedString(jwtSecret)
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}
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// GenerateTokenAdmin - Serupa dengan dokter, tapi ini buat admin dengan role khusus
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func GenerateTokenAdmin(admin models.Admin_Ruangan, namaAdmin string) (string, error) {
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claims := jwt.MapClaims{
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"id": admin.ID_Admin,
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"nama_admin": admin.Nama_Admin,
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"id_ruangan": admin.ID_Ruangan,
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"role": "admin",
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"exp": time.Now().Add(24 * time.Hour).Unix(),
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"iat": time.Now().Unix(),
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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return token.SignedString(jwtSecret)
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}
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// AuthMiddleware - Middleware pengecekan token JWT
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// Ngecek header Authorization, parse tokennya, terus simpan data di context jika valid
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func AuthMiddleware() gin.HandlerFunc {
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return func(c *gin.Context) {
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authHeader := c.GetHeader("Authorization")
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if authHeader == "" || !strings.HasPrefix(authHeader, "Bearer ") {
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c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{
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"status": "error",
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"message": "Authorization header wajib menggunakan Bearer token",
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})
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return
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}
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tokenString := strings.TrimSpace(strings.TrimPrefix(authHeader, "Bearer"))
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token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
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if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
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return nil, errors.New("metode tanda tangan tidak dikenal")
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}
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return jwtSecret, nil
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})
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if err != nil || !token.Valid {
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c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{
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"status": "error",
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"message": "Token tidak valid atau kadaluarsa",
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})
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return
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}
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claims, ok := token.Claims.(jwt.MapClaims)
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if !ok {
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c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{
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"status": "error",
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"message": "Token tidak valid",
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})
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return
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}
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c.Set("dokter_id", claims["id"])
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c.Set("dokter_nama", claims["nama"])
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c.Set("dokter_ksm", claims["ksm"])
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c.Set("dokter_email", claims["email"])
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c.Next()
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}
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}
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