Fix CRITICAL xxe (XML External Entity) issues

Signed-off-by: Vasyl Razinkov <vasyl.razinkov@est.tech>
Change-Id: Ic33527d54a5245430e41b5a4261810922f7b4fb1
Issue-ID: SDC-3608

1 files changed, 112 insertions, 116 deletions

diff --git a/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/GraphMLDataAnalyzer.java b/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/GraphMLDataAnalyzer.java
index bbfcbd36dd..88e20e9b21 100644
--- a/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/GraphMLDataAnalyzer.java
+++ b/asdctool/src/main/java/org/openecomp/sdc/asdctool/impl/GraphMLDataAnalyzer.java
@@ -24,21 +24,21 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashSet;
+import java.util.Iterator;
 import java.util.List;
 import java.util.Set;
-import javax.xml.XMLConstants;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.poi.hssf.usermodel.HSSFWorkbook;
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.usermodel.Workbook;
-import org.jdom2.Document;
-import org.jdom2.Element;
-import org.jdom2.JDOMException;
-import org.jdom2.filter.ElementFilter;
-import org.jdom2.input.SAXBuilder;
-import org.jdom2.util.IteratorIterable;
+import org.dom4j.Document;
+import org.dom4j.DocumentException;
+import org.dom4j.Element;
+import org.dom4j.io.SAXReader;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.xml.sax.SAXException;
 
 public class GraphMLDataAnalyzer {
 
@@ -47,12 +47,12 @@ public class GraphMLDataAnalyzer {
     private static final String[] COMPONENT_SHEET_HEADER = {"uniqueId", "type", "name", "toscaResourceName", "resourceType", "version", "deleted",
         "hasNonCalculatedReqCap"};
     private static final String[] COMPONENT_INSTANCES_SHEET_HEADER = {"uniqueId", "name", "originUid", "originType", "containerUid"};
-    private static Logger log = LoggerFactory.getLogger(GraphMLDataAnalyzer.class);
+    private static final Logger log = LoggerFactory.getLogger(GraphMLDataAnalyzer.class);
 
-    public String analyzeGraphMLData(String[] args) {
+    public String analyzeGraphMLData(final String[] args) {
         String result;
         try {
-            String mlFileLocation = args[0];
+            final String mlFileLocation = args[0];
             result = analyzeGraphMLData(mlFileLocation);
             log.info("Analyzed ML file={}, XLS result={}", mlFileLocation, result);
         } catch (Exception e) {
@@ -62,34 +62,32 @@ public class GraphMLDataAnalyzer {
         return result;
     }
 
-    private String analyzeGraphMLData(String mlFileLocation) throws JDOMException, IOException {
+    private String analyzeGraphMLData(final String mlFileLocation) throws SAXException, DocumentException, IOException {
         // Parse ML file
-        SAXBuilder builder = new SAXBuilder();
-        builder.setProperty(XMLConstants.ACCESS_EXTERNAL_DTD, "");
-        builder.setProperty(XMLConstants.ACCESS_EXTERNAL_SCHEMA, "");
-        File xmlFile = new File(mlFileLocation);
-        Document document = builder.build(xmlFile);
+        final SAXReader xmlReader = new SAXReader();
+        xmlReader.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
+        final Document document = xmlReader.read(new File(mlFileLocation));
+
         // XLS data file name
-        String outputFile = mlFileLocation.replace(GRAPH_ML_EXTENSION, EXCEL_EXTENSION);
-        try (Workbook wb = new HSSFWorkbook(); FileOutputStream fileOut = new FileOutputStream(outputFile)) {
+        final String outputFile = mlFileLocation.replace(GRAPH_ML_EXTENSION, EXCEL_EXTENSION);
+        try (final var wb = new HSSFWorkbook(); final var fileOut = new FileOutputStream(outputFile)) {
             writeComponents(wb, document);
             writeComponentInstances(wb, document);
             wb.write(fileOut);
-        } catch (Exception e) {
+        } catch (final Exception e) {
             log.error("Analyze GraphML Data failed!", e);
         }
         return outputFile;
     }
 
-    private void writeComponents(Workbook wb, Document document) {
-        Sheet componentsSheet = wb.createSheet("Components");
+    private void writeComponents(final Workbook wb, final Document document) {
+        final Sheet componentsSheet = wb.createSheet("Components");
         Row currentRow = componentsSheet.createRow(0);
         for (int i = 0; i < COMPONENT_SHEET_HEADER.length; i++) {
             currentRow.createCell(i).setCellValue(COMPONENT_SHEET_HEADER[i]);
         }
-        List<ComponentRow> components = getComponents(document);
         int rowNum = 1;
-        for (ComponentRow row : components) {
+        for (final ComponentRow row : getComponents(document)) {
             currentRow = componentsSheet.createRow(rowNum++);
             currentRow.createCell(0).setCellValue(row.getUniqueId());
             currentRow.createCell(1).setCellValue(row.getType());
@@ -102,15 +100,14 @@ public class GraphMLDataAnalyzer {
         }
     }
 
-    private void writeComponentInstances(Workbook wb, Document document) {
-        Sheet componentsSheet = wb.createSheet("ComponentInstances");
+    private void writeComponentInstances(final Workbook wb, final Document document) {
+        final Sheet componentsSheet = wb.createSheet("ComponentInstances");
         Row currentRow = componentsSheet.createRow(0);
         for (int i = 0; i < COMPONENT_INSTANCES_SHEET_HEADER.length; i++) {
             currentRow.createCell(i).setCellValue(COMPONENT_INSTANCES_SHEET_HEADER[i]);
         }
-        List<ComponentInstanceRow> components = getComponentInstances(document);
         int rowNum = 1;
-        for (ComponentInstanceRow row : components) {
+        for (final ComponentInstanceRow row : getComponentInstances(document)) {
             currentRow = componentsSheet.createRow(rowNum++);
             currentRow.createCell(0).setCellValue(row.getUniqueId());
             currentRow.createCell(1).setCellValue(row.getName());
@@ -120,66 +117,67 @@ public class GraphMLDataAnalyzer {
         }
     }
 
-    private List<ComponentRow> getComponents(Document document) {
-        List<ComponentRow> res = new ArrayList<>();
-        Element root = document.getRootElement();
-        ElementFilter filter = new ElementFilter("graph");
-        Element graph = root.getDescendants(filter).next();
-        filter = new ElementFilter("edge");
-        IteratorIterable<Element> edges = graph.getDescendants(filter);
-        Set<String> componentsHavingReqOrCap = new HashSet<>();
-        filter = new ElementFilter("data");
-        for (Element edge : edges) {
-            IteratorIterable<Element> dataNodes = edge.getDescendants(filter);
-            for (Element data : dataNodes) {
-                String attributeValue = data.getAttributeValue("key");
+    private List<ComponentRow> getComponents(final Document document) {
+        final List<ComponentRow> res = new ArrayList<>();
+        final Element root = document.getRootElement();
+        final Element graph = (Element) root.elementIterator("graph").next();
+        final Iterator<Element> edges = graph.elementIterator("edge");
+        final Set<String> componentsHavingReqOrCap = new HashSet<>();
+        while (edges.hasNext()) {
+            final Element edge = edges.next();
+            final Iterator<Element> dataNodes = edge.elementIterator("data");
+            while (dataNodes.hasNext()) {
+                final Element data = dataNodes.next();
+                final String attributeValue = data.attributeValue("key");
                 if ("labelE".equals(attributeValue)) {
-                    String edgeLabel = data.getText();
+                    final String edgeLabel = data.getText();
                     if ("REQUIREMENT".equals(edgeLabel) || "CAPABILITY".equals(edgeLabel)) {
-                        componentsHavingReqOrCap.add(edge.getAttributeValue("source"));
+                        componentsHavingReqOrCap.add(edge.attributeValue("source"));
                     }
                 }
             }
         }
-        filter = new ElementFilter("node");
-        IteratorIterable<Element> nodes = graph.getDescendants(filter);
-        filter = new ElementFilter("data");
-        for (Element element : nodes) {
-            IteratorIterable<Element> dataNodes = element.getDescendants(filter);
-            ComponentRow componentRow = new ComponentRow();
+        final Iterator<Element> nodes = graph.elementIterator("node");
+        while (nodes.hasNext()) {
+            final Element element = nodes.next();
+            final Iterator<Element> dataNodes = element.elementIterator("data");
+            final ComponentRow componentRow = new ComponentRow();
             boolean isComponent = false;
-            for (Element data : dataNodes) {
-                String attributeValue = data.getAttributeValue("key");
-                switch (attributeValue) {
-                    case "nodeLabel":
-                        String nodeLabel = data.getText();
-                        if ("resource".equals(nodeLabel) || "service".equals(nodeLabel)) {
-                            isComponent = true;
-                            componentRow.setType(nodeLabel);
-                            String componentId = element.getAttributeValue("id");
-                            componentRow.setHasNonCalculatedReqCap(componentsHavingReqOrCap.contains(componentId));
-                        }
-                        break;
-                    case "uid":
-                        componentRow.setUniqueId(data.getText());
-                        break;
-                    case "name":
-                        componentRow.setName(data.getText());
-                        break;
-                    case "toscaResourceName":
-                        componentRow.setToscaResourceName(data.getText());
-                        break;
-                    case "resourceType":
-                        componentRow.setResourceType(data.getText());
-                        break;
-                    case "version":
-                        componentRow.setVersion(data.getText());
-                        break;
-                    case "deleted":
-                        componentRow.setIsDeleted(Boolean.parseBoolean(data.getText()));
-                        break;
-                    default:
-                        break;
+            while (dataNodes.hasNext()) {
+                final Element data = dataNodes.next();
+                final String attributeValue = data.attributeValue("key");
+                if (StringUtils.isNotEmpty(attributeValue)) {
+                    switch (attributeValue) {
+                        case "nodeLabel":
+                            final String nodeLabel = data.getText();
+                            if ("resource".equals(nodeLabel) || "service".equals(nodeLabel)) {
+                                isComponent = true;
+                                componentRow.setType(nodeLabel);
+                                final String componentId = element.attributeValue("id");
+                                componentRow.setHasNonCalculatedReqCap(componentsHavingReqOrCap.contains(componentId));
+                            }
+                            break;
+                        case "uid":
+                            componentRow.setUniqueId(data.getText());
+                            break;
+                        case "name":
+                            componentRow.setName(data.getText());
+                            break;
+                        case "toscaResourceName":
+                            componentRow.setToscaResourceName(data.getText());
+                            break;
+                        case "resourceType":
+                            componentRow.setResourceType(data.getText());
+                            break;
+                        case "version":
+                            componentRow.setVersion(data.getText());
+                            break;
+                        case "deleted":
+                            componentRow.setIsDeleted(Boolean.parseBoolean(data.getText()));
+                            break;
+                        default:
+                            break;
+                    }
                 }
             }
             if (isComponent) {
@@ -189,47 +187,45 @@ public class GraphMLDataAnalyzer {
         return res;
     }
 
-    private List<ComponentInstanceRow> getComponentInstances(Document document) {
-        List<ComponentInstanceRow> res = new ArrayList<>();
-        Element root = document.getRootElement();
-        ElementFilter filter = new ElementFilter("graph");
-        Element graph = root.getDescendants(filter).next();
-        filter = new ElementFilter("node");
-        IteratorIterable<Element> nodes = graph.getDescendants(filter);
-        filter = new ElementFilter("data");
-        for (Element element : nodes) {
-            IteratorIterable<Element> dataNodes = element.getDescendants(filter);
-            ComponentInstanceRow componentInstRow = new ComponentInstanceRow();
+    private List<ComponentInstanceRow> getComponentInstances(final Document document) {
+        final List<ComponentInstanceRow> res = new ArrayList<>();
+        final Element root = document.getRootElement();
+        final Element graph = (Element) root.elementIterator("graph").next();
+        final Iterator<Element> nodes = graph.elementIterator("node");
+        while (nodes.hasNext()) {
+            final Iterator<Element> dataNodes = nodes.next().elementIterator("data");
+            final ComponentInstanceRow componentInstRow = new ComponentInstanceRow();
             boolean isComponentInst = false;
-            for (Element data : dataNodes) {
-                String attributeValue = data.getAttributeValue("key");
-                switch (attributeValue) {
-                    case "nodeLabel":
-                        String nodeLabel = data.getText();
-                        if ("resourceInstance".equals(nodeLabel)) {
-                            isComponentInst = true;
-                        }
-                        break;
-                    case "uid":
-                        componentInstRow.setUniqueId(data.getText());
-                        break;
-                    case "name":
-                        componentInstRow.setName(data.getText());
-                        break;
-                    case "originType":
-                        componentInstRow.setOriginType(data.getText());
-                        break;
-                    default:
-                        break;
+            while (dataNodes.hasNext()) {
+                final Element data = dataNodes.next();
+                final String attributeValue = data.attributeValue("key");
+                if (StringUtils.isNotEmpty(attributeValue)) {
+                    switch (attributeValue) {
+                        case "nodeLabel":
+                            final String nodeLabel = data.getText();
+                            if ("resourceInstance".equals(nodeLabel)) {
+                                isComponentInst = true;
+                            }
+                            break;
+                        case "uid":
+                            componentInstRow.setUniqueId(data.getText());
+                            break;
+                        case "name":
+                            componentInstRow.setName(data.getText());
+                            break;
+                        case "originType":
+                            componentInstRow.setOriginType(data.getText());
+                            break;
+                        default:
+                            break;
+                    }
                 }
             }
             if (isComponentInst) {
-                // Assuming the uid is in standard form of
-
-                // <container>.<origin>.<name>
-                String uniqueId = componentInstRow.getUniqueId();
+                // Assuming the uid is in standard form of <container>.<origin>.<name>
+                final String uniqueId = componentInstRow.getUniqueId();
                 if (uniqueId != null) {
-                    String[] split = uniqueId.split("\\.");
+                    final String[] split = uniqueId.split("\\.");
                     if (split.length == 3) {
                         componentInstRow.setContainerUid(split[0]);
                         componentInstRow.setOriginUid(split[1]);