ilk

svc/routes/password_reset.go

@@ -0,0 +1,126 @@
+package routes
+
+import (
+	"bssapp-backend/auth"
+	"bssapp-backend/internal/auditlog"
+	"bssapp-backend/internal/security"
+	"database/sql"
+	"encoding/json"
+	"net/http"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+func ChangeOwnPasswordHandler(db *sql.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+
+		w.Header().Set("Content-Type", "application/json; charset=utf-8")
+
+		// --------------------------------------------------
+		// 1️⃣ JWT CLAIMS
+		// --------------------------------------------------
+		claims, ok := auth.GetClaimsFromContext(r.Context())
+		if !ok || claims == nil {
+			http.Error(w, "unauthorized", http.StatusUnauthorized)
+			return
+		}
+
+		// --------------------------------------------------
+		// 2️⃣ PAYLOAD
+		// --------------------------------------------------
+		var req struct {
+			CurrentPassword string `json:"current_password"`
+			NewPassword     string `json:"new_password"`
+		}
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			http.Error(w, "invalid payload", http.StatusBadRequest)
+			return
+		}
+
+		if req.CurrentPassword == "" || req.NewPassword == "" {
+			http.Error(w, "current_password and new_password required", http.StatusBadRequest)
+			return
+		}
+
+		// --------------------------------------------------
+		// 3️⃣ PASSWORD POLICY
+		// --------------------------------------------------
+		if err := security.ValidatePassword(req.NewPassword); err != nil {
+			http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+			return
+		}
+
+		// --------------------------------------------------
+		// 4️⃣ MEVCUT HASH ÇEK
+		// --------------------------------------------------
+		var currentHash string
+		err := db.QueryRow(`
+			SELECT password_hash
+			FROM mk_dfusr
+			WHERE id = $1
+			  AND is_active = true
+		`, claims.ID).Scan(&currentHash)
+
+		if err != nil {
+			http.Error(w, "user not found", http.StatusUnauthorized)
+			return
+		}
+
+		// --------------------------------------------------
+		// 5️⃣ CURRENT PASSWORD CHECK
+		// --------------------------------------------------
+		if bcrypt.CompareHashAndPassword(
+			[]byte(currentHash),
+			[]byte(req.CurrentPassword),
+		) != nil {
+			http.Error(w, "current password incorrect", http.StatusUnauthorized)
+			return
+		}
+
+		// --------------------------------------------------
+		// 6️⃣ NEW HASH
+		// --------------------------------------------------
+		newHash, err := bcrypt.GenerateFromPassword(
+			[]byte(req.NewPassword),
+			bcrypt.DefaultCost,
+		)
+		if err != nil {
+			http.Error(w, "hash error", http.StatusInternalServerError)
+			return
+		}
+
+		// --------------------------------------------------
+		// 7️⃣ UPDATE (⚠️ force_password_change DEĞİŞMEZ)
+		// --------------------------------------------------
+		_, err = db.Exec(`
+			UPDATE mk_dfusr
+			SET
+				password_hash = $1,
+				password_updated_at = now(),
+				updated_at = now()
+			WHERE id = $2
+		`, string(newHash), claims.ID)
+
+		if err != nil {
+			http.Error(w, "password update failed", http.StatusInternalServerError)
+			return
+		}
+
+		// --------------------------------------------------
+		// 8️⃣ AUDIT
+		// --------------------------------------------------
+		auditlog.Write(auditlog.ActivityLog{
+			ActionType:     "PASSWORD_CHANGED",
+			ActionCategory: "security",
+			ActionTarget:   claims.Username,
+			IsSuccess:      true,
+		})
+
+		// --------------------------------------------------
+		// 9️⃣ RESPONSE
+		// --------------------------------------------------
+		_ = json.NewEncoder(w).Encode(map[string]any{
+			"success": true,
+		})
+	}
+}