Добавил API get_request_token

src/main/java/org/ccalm/jwt/MainController.java

@@ -273,6 +273,47 @@ public class MainController implements ServletContextAware {
         return true;
     }
     //------------------------------------------------------------------------------------------------------------------
+    //Одноразовый токен для каждого запроса ('X-Request-Token': token) с сохранением "User-Agent"
+    @Operation(summary = "Generate unique one-time request token", description = "Must be used in every data submission.")
+    @RequestMapping(value = "/get_request_token", method = {RequestMethod.GET}, produces = "application/json;charset=utf-8")
+    @ResponseBody
+    public ResponseEntity<Object> getRequestToken(HttpServletRequest request, @RequestParam(required = false, name = "lng", defaultValue = "1") String language_id) {
+        Translation trt = new Translation(language_id, jdbcTemplate);
+        try{
+            byte[] randomBytes = new byte[32];
+            new SecureRandom().nextBytes(randomBytes);
+            String token = Base64.getUrlEncoder().withoutPadding().encodeToString(randomBytes);
+
+            String userAgent = request.getHeader("User-Agent");
+            String userAgentHash = DigestUtils.sha256Hex(userAgent);
+
+            try (Cache cache = new Cache(redis_host, redis_port, redis_password)) {
+                cache.open();
+                cache.set(token, userAgentHash, access_time);
+            } catch (Exception e) {
+                String uuid = UUID.randomUUID().toString();
+                logger.error(uuid, e);
+                throw new CustomException(10000, trt.trt(false, "Internal_Server_Error"), null, true);
+            }
+
+            Map<String, Object> response = new HashMap<>();
+            response.put("token", token);
+            response.put("ttl", access_time);
+
+            return ResponseEntity.ok(response);
+        } catch (CustomException e) {
+            if(e.isSaveToLog()) {
+                String uuid = UUID.randomUUID().toString();
+                logger.error(uuid, e);
+            }
+            return new ResponseEntity<>(e.getErrorResponseModel(), HttpStatus.INTERNAL_SERVER_ERROR);
+        } catch (Exception e) {
+            String uuid = UUID.randomUUID().toString();
+            logger.error(uuid, e);
+            return new ResponseEntity<>(new ErrorResponseModel(10000, trt.trt(false, "Internal_Server_Error"), null, uuid), HttpStatus.INTERNAL_SERVER_ERROR);
+        }
+    }
+    //------------------------------------------------------------------------------------------------------------------
     @Operation(summary = "Get API version(date) of build", description = "Returns the date and API name")
     @RequestMapping(value = "/",method = RequestMethod.GET,produces = "application/json;charset=utf-8")
     @ResponseBody