Add string concaternate operation.

src/main/java/de/usd/cstchef/Utils.java

@@ -108,6 +108,7 @@
 import de.usd.cstchef.operations.string.Suffix;
 import de.usd.cstchef.operations.string.Uppercase;
 import de.usd.cstchef.operations.string.Lowercase;
+import de.usd.cstchef.operations.string.Concaternate;
 import de.usd.cstchef.operations.utils.GetVariable;
 import de.usd.cstchef.operations.utils.NoOperation;
 import de.usd.cstchef.operations.utils.RandomNumber;
@@ -228,7 +229,7 @@ public static Class<? extends Operation>[] getOperationsDev() {
             Suffix.class, Sum.class, StringContains.class, StringMatch.class, Tiger.class,
             ToBase64.class, ToHex.class, UnixTimestamp.class, UrlDecode.class, UrlEncode.class,
             Whirlpool.class, WriteFile.class, XmlFullSignature.class, XmlMultiSignature.class,
-            Xor.class, SoapMultiSignature.class
+            Xor.class, SoapMultiSignature.class, Concaternate.class
         };
     }
 

src/main/java/de/usd/cstchef/operations/string/Concaternate.java

@@ -0,0 +1,58 @@
+package de.usd.cstchef.operations.string;
+
+import de.usd.cstchef.VariableStore;
+import de.usd.cstchef.operations.Operation;
+import de.usd.cstchef.operations.OperationCategory;
+import de.usd.cstchef.operations.Operation.OperationInfos;
+import de.usd.cstchef.view.ui.VariableTextArea;
+
+
+@OperationInfos(name = "Concaternate", category = OperationCategory.STRING, description = "Concaternate multiple string values or variables. Separate multiple strings or variables with ';'.")
+public class Concaternate extends Operation {
+
+    private VariableTextArea text;
+
+    @Override
+    protected byte[] perform(byte[] input) throws Exception {
+
+        String[] components = text.getText().split(";");
+        String trimed;
+        byte[][] value = new byte[components.length][];
+        for (int i = 0; i < components.length; i++) {
+            trimed = components[i].trim();
+
+            if (trimed.startsWith("$")) {
+                value[i] = VariableStore.getInstance().getVariable(trimed);
+            } else {
+                value[i] = trimed.getBytes();
+            }
+        }
+
+        return flatten_array(value);
+    }
+
+    public void createUI() {
+        this.text = new VariableTextArea();
+        this.addUIElement("Values to concaternate", this.text);
+    }
+
+    private byte[] flatten_array(byte[][] arrays){
+
+        // Calculate the total length of the concatenated array
+        int totalLength = 0;
+        for (byte[] array : arrays) {
+            totalLength += array.length;
+        }
+
+        // Create the concatenated array
+        byte[] result = new byte[totalLength];
+        int currentIndex = 0;
+        for (byte[] array : arrays) {
+            System.arraycopy(array, 0, result, currentIndex, array.length);
+            currentIndex += array.length;
+        }
+
+        return result;
+    }
+
+}