From 44cd64d3621afd7494b94402fcf3d97aaf27a680 Mon Sep 17 00:00:00 2001
From: nedlir <neliran2@telem.openu.ac.il>
Date: Fri, 25 Feb 2022 19:47:24 +0200
Subject: [PATCH] XMLParser working, removing security element from node

---
 XMLParser.java | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 XMLParser.java

diff --git a/XMLParser.java b/XMLParser.java
new file mode 100644
index 0000000..207145f
--- /dev/null
+++ b/XMLParser.java
@@ -0,0 +1,52 @@
+import java.io.File;
+import java.io.FileInputStream;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+
+public class XMLParser {
+
+    private final String TARGET_ELEMENT = "p:modifyVerifier"; // hashed password element
+    private String filePath;
+
+    private Document document;
+
+    public XMLParser(String filePath) throws Exception {
+        this.filePath = filePath;
+        this.document = XMLFileToDocument();
+    }
+
+    public Document XMLFileToDocument() throws Exception {
+        DocumentBuilderFactory documentFactory = DocumentBuilderFactory.newInstance();
+        DocumentBuilder documentBuilder = documentFactory.newDocumentBuilder();
+        return documentBuilder.parse(new FileInputStream(new File(filePath)));
+    }
+
+    public void removeElementOfSecurity() {
+        // get the element TARGET_ELEMENT (the hashed password element):
+        Element element = (Element) document.getElementsByTagName(TARGET_ELEMENT).item(0);
+
+        // remove the node:
+        element.getParentNode().removeChild(element);
+    }
+
+    public void writeToXMLFile(String newFilePath) throws Exception {
+        // create transformer from document to xml file:
+        TransformerFactory transformerFactory = TransformerFactory.newInstance();
+        Transformer transformer = transformerFactory.newTransformer();
+        DOMSource dom = new DOMSource(this.document);
+        // new file:
+        StreamResult streamResult = new StreamResult(new File(newFilePath));
+
+        // transform the XML source to a file:
+        transformer.transform(dom, streamResult);
+    }
+}