Allow configuration of allowed password string length

This change allows the configuration of the password length with entries in JSONConfiguration.

Author: JohannesZangl

OCPP-J/src/main/java/eu/chargetime/ocpp/JSONConfiguration.java

@@ -39,6 +39,11 @@ public class JSONConfiguration {
   public static final String CONNECT_NON_BLOCKING_PARAMETER = "CONNECT_NON_BLOCKING";
   public static final String CONNECT_TIMEOUT_IN_MS_PARAMETER = "CONNECT_TIMEOUT_IN_MS";
   public static final String WEBSOCKET_WORKER_COUNT = "WEBSOCKET_WORKER_COUNT";
+  public static final String HTTP_HEALTH_CHECK_ENABLED = "HTTP_HEALTH_CHECK_ENABLED";
+  public static final String OCPPJ_CP_MIN_PASSWORD_LENGTH = "OCPPJ_CP_MIN_PASSWORD_LENGTH";
+  public static final String OCPPJ_CP_MAX_PASSWORD_LENGTH = "OCPPJ_CP_MAX_PASSWORD_LENGTH";
+  public static final String OCPP2J_CP_MIN_PASSWORD_LENGTH = "OCPP2J_CP_MIN_PASSWORD_LENGTH";
+  public static final String OCPP2J_CP_MAX_PASSWORD_LENGTH = "OCPP2J_CP_MAX_PASSWORD_LENGTH";
 
   private final HashMap<String, Object> parameters = new HashMap<>();
 

OCPP-J/src/main/java/eu/chargetime/ocpp/WebSocketListener.java

@@ -166,8 +166,8 @@ public ServerHandshakeBuilder onWebsocketHandshakeReceivedAsServer(
                 }
               }
               if (password == null
-                  || password.length < OCPPJ_CP_MIN_PASSWORD_LENGTH
-                  || password.length > OCPPJ_CP_MAX_PASSWORD_LENGTH)
+                  || password.length < configuration.getParameter(JSONConfiguration.OCPPJ_CP_MIN_PASSWORD_LENGTH, OCPPJ_CP_MIN_PASSWORD_LENGTH)
+                  || password.length > configuration.getParameter(JSONConfiguration.OCPPJ_CP_MAX_PASSWORD_LENGTH, OCPPJ_CP_MAX_PASSWORD_LENGTH))
                 throw new InvalidDataException(401, "Invalid password length");
             }
 

ocpp-v1_6/src/main/java/eu/chargetime/ocpp/JSONServer.java

@@ -69,7 +69,7 @@ public JSONServer(ServerCoreProfile coreProfile, JSONConfiguration configuration
     protocols.add(new Protocol(""));
     draftOcppOnly = new Draft_6455(Collections.emptyList(), protocols);
 
-    if(configuration.getParameter("HTTP_HEALTH_CHECK_ENABLED", true)) {
+    if(configuration.getParameter(JSONConfiguration.HTTP_HEALTH_CHECK_ENABLED, true)) {
       logger.info("JSONServer 1.6 with HttpHealthCheckDraft");
       this.listener = new WebSocketListener(sessionFactory, configuration, draftOcppOnly, new Draft_HttpHealthCheck());
     } else {

ocpp-v2/src/main/java/eu/chargetime/ocpp/MultiProtocolJSONServer.java

@@ -73,7 +73,7 @@ public MultiProtocolJSONServer(
     }
     Draft draft = new Draft_6455(Collections.emptyList(), protocols);
 
-    if (configuration.getParameter("HTTP_HEALTH_CHECK_ENABLED", true)) {
+    if (configuration.getParameter(JSONConfiguration.HTTP_HEALTH_CHECK_ENABLED, true)) {
       logger.info("JSONServer with HttpHealthCheckDraft");
       listener =
           new MultiProtocolWebSocketListener(

ocpp-v2/src/main/java/eu/chargetime/ocpp/MultiProtocolWebSocketListener.java

@@ -186,13 +186,13 @@ public ServerHandshakeBuilder onWebsocketHandshakeReceivedAsServer(
               }
               if (protocolVersion == null || protocolVersion == ProtocolVersion.OCPP1_6) {
                 if (password == null
-                    || password.length < OCPPJ_CP_MIN_PASSWORD_LENGTH
-                    || password.length > OCPPJ_CP_MAX_PASSWORD_LENGTH)
+                    || password.length < configuration.getParameter(JSONConfiguration.OCPPJ_CP_MIN_PASSWORD_LENGTH, OCPPJ_CP_MIN_PASSWORD_LENGTH)
+                    || password.length > configuration.getParameter(JSONConfiguration.OCPPJ_CP_MAX_PASSWORD_LENGTH, OCPPJ_CP_MAX_PASSWORD_LENGTH))
                   throw new InvalidDataException(401, "Invalid password length");
               } else {
                 if (password == null
-                    || password.length < OCPP2J_CP_MIN_PASSWORD_LENGTH
-                    || password.length > OCPP2J_CP_MAX_PASSWORD_LENGTH)
+                    || password.length < configuration.getParameter(JSONConfiguration.OCPP2J_CP_MIN_PASSWORD_LENGTH, OCPP2J_CP_MIN_PASSWORD_LENGTH)
+                    || password.length > configuration.getParameter(JSONConfiguration.OCPP2J_CP_MAX_PASSWORD_LENGTH, OCPP2J_CP_MAX_PASSWORD_LENGTH))
                   throw new InvalidDataException(401, "Invalid password length");
               }
             }