feature: sink point add stacks.

Author: ‘niuerzhuang’

dongtai-core/src/main/java/io/dongtai/iast/core/handler/hookpoint/graphy/GraphBuilder.java

@@ -179,6 +179,11 @@ public static JSONObject toJson(MethodEvent event) {
             value.put("traceId", event.traceId);
         }
 
+        if (null != event.getStacks()){
+            JSONArray methodStacksArray = new JSONArray(event.getStacks());
+            value.put("stacks",methodStacksArray);
+        }
+
         return value;
     }
 }

dongtai-core/src/main/java/io/dongtai/iast/core/handler/hookpoint/models/MethodEvent.java

@@ -92,6 +92,8 @@ public class MethodEvent {
 
     private StackTraceElement callStack;
 
+    private List<Object> stacks;
+
     public String traceId = null;
 
     public static class Parameter {
@@ -302,4 +304,16 @@ public String obj2String(Object value) {
         }
         return sb.toString();
     }
+
+    public List<Object> getStacks() {
+        return stacks;
+    }
+
+    public void setStacks(StackTraceElement[] stackTraceElements) {
+        List<Object> stacks = new ArrayList<>();
+        for(StackTraceElement stackTraceElement:stackTraceElements){
+            stacks.add(stackTraceElement.toString());
+        }
+        this.stacks = stacks;
+    }
 }

dongtai-core/src/main/java/io/dongtai/iast/core/handler/hookpoint/vulscan/dynamic/DynamicPropagatorScanner.java

@@ -66,6 +66,7 @@ public void scan(MethodEvent event, SinkNode sinkNode) {
             int invokeId = SpyDispatcherImpl.INVOKE_ID_SEQUENCER.getAndIncrement();
             event.setInvokeId(invokeId);
             event.setTaintPositions(sinkNode.getSources(), null);
+            event.setStacks(stackTraceElements);
 
             EngineManager.TRACK_MAP.addTrackMethod(invokeId, event);
         }