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Code Issues Releases Wiki Activity

5093 disable linking, right click menu, and fix image disabling

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This commit is contained in:
William Schaefer
2019-05-16 18:11:51 -04:00
parent 5cf30a99dc
commit 93c2a7411d
1 changed files with 40 additions and 7 deletions
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Core/src/org/sleuthkit/autopsy/contentviewers/HtmlPanel.java
+40 -7
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@@ -19,12 +19,18 @@
package org.sleuthkit.autopsy.contentviewers;
import javafx.application.Platform;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.concurrent.Worker;
import javafx.scene.web.WebView;
import javafx.embed.swing.JFXPanel;
import javafx.scene.Scene;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Node;
import org.openide.util.NbBundle.Messages;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.w3c.dom.events.EventTarget;
/**
* A file content viewer for HTML files.
@@ -45,7 +51,19 @@ final class HtmlPanel extends javax.swing.JPanel {
initComponents();
Platform.runLater(() -> {
webView = new WebView();
//disable the context menu so they can't open linked pages by right clicking
webView.setContextMenuEnabled(false);
//disable java script
webView.getEngine().setJavaScriptEnabled(false);
//disable clicking on links
webView.getEngine().getLoadWorker().stateProperty().addListener(new ChangeListener<Worker.State>() {
@Override
public void changed(ObservableValue<? extends Worker.State> observable, Worker.State oldValue, Worker.State newValue) {
if (newValue == Worker.State.SUCCEEDED) {
disableHyperLinks();
}
}
});
Scene scene = new Scene(webView);
jfxPanel.setScene(scene);
jfxPanel.setPreferredSize(htmlJPanel.getPreferredSize());
@@ -81,12 +99,9 @@ final class HtmlPanel extends javax.swing.JPanel {
* @return The cleansed HTML String
*/
private String cleanseHTML(String htmlInString) {
//this will not remove all images just the ones in the image tags matching this format
Document doc = Jsoup.parse(htmlInString);
// Update all 'img' tags.
doc.select("img[src]").forEach(img -> img.attr("src", ""));
org.jsoup.nodes.Document doc = Jsoup.parse(htmlInString);
// remove all 'img' tags.
doc.select("img").stream().forEach(Node::remove);
return doc.html();
}
@@ -163,6 +178,24 @@ final class HtmlPanel extends javax.swing.JPanel {
refresh();
}//GEN-LAST:event_showImagesToggleButtonActionPerformed
/**
* Disable the click events on hyper links so that new pages can not be
* opened.
*/
private void disableHyperLinks() {
Platform.runLater(() -> {
Document document = webView.getEngine().getDocument();
if (document != null) {
NodeList nodeList = document.getElementsByTagName("a");
for (int i = 0; i < nodeList.getLength(); i++) {
((EventTarget) nodeList.item(i)).addEventListener("click", (evt) -> {
evt.preventDefault();
evt.stopPropagation();
}, true);
}
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JPanel htmlJPanel;