1 files changed, 142 insertions, 0 deletions
diff --git a/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/TrustPreferencePage.java b/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/TrustPreferencePage.java
new file mode 100644
index 000000000..4b4c2439c
--- /dev/null
+++ b/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/TrustPreferencePage.java
@@ -0,0 +1,142 @@
+/*******************************************************************************
+ * Copyright (c) 2021 Red Hat Inc.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *******************************************************************************/
+package org.eclipse.equinox.internal.p2.ui.sdk;
+
+import java.io.*;
+import java.util.ArrayList;
+import java.util.List;
+import org.bouncycastle.bcpg.ArmoredOutputStream;
+import org.bouncycastle.openpgp.PGPPublicKey;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.equinox.internal.p2.engine.phases.CertificateChecker;
+import org.eclipse.equinox.internal.p2.ui.ProvUIActivator;
+import org.eclipse.jface.dialogs.IDialogConstants;
+import org.eclipse.jface.preference.PreferencePage;
+import org.eclipse.jface.viewers.*;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionListener;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.*;
+import org.eclipse.ui.IWorkbench;
+import org.eclipse.ui.IWorkbenchPreferencePage;
+
+public class TrustPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {
+
+	public TrustPreferencePage() {
+		super(ProvSDKMessages.TrustPreferencePage_title);
+	}
+
+	@Override
+	public void init(IWorkbench workbench) {
+		// nothing to do
+	}
+
+	@Override
+	protected Control createContents(Composite parent) {
+		Composite res = new Composite(parent, SWT.NONE);
+
+		Label pgpLabel = new Label(res, SWT.WRAP);
+		pgpLabel.setLayoutData(new GridData(SWT.FILL, SWT.DEFAULT, true, false, 2, 1));
+		pgpLabel.setText(ProvSDKMessages.TrustPreferencePage_pgpIntro);
+
+		res.setLayout(new GridLayout(2, false));
+		TableViewer viewer = new TableViewer(res);
+		viewer.getTable().setHeaderVisible(true);
+		viewer.setContentProvider(new ArrayContentProvider());
+		TableViewerColumn idColumn = new TableViewerColumn(viewer, SWT.NONE);
+		idColumn.setLabelProvider(new ColumnLabelProvider() {
+			@Override
+			public String getText(Object element) {
+				return Long.toHexString(((PGPPublicKey) element).getKeyID()).toUpperCase();
+			}
+		});
+		idColumn.getColumn().setWidth(16 * 10); // number of chars in a key Id * some heuristic of width
+		idColumn.getColumn().setText(ProvSDKMessages.TrustPreferencePage_idColumn);
+		TableViewerColumn userColumn = new TableViewerColumn(viewer, SWT.NONE);
+		userColumn.setLabelProvider(new ColumnLabelProvider() {
+			@Override
+			public String getText(Object element) {
+				List<String> userIds = new ArrayList<>();
+				((PGPPublicKey) element).getUserIDs().forEachRemaining(userIds::add);
+				return String.join(",", userIds); //$NON-NLS-1$
+			}
+		});
+		userColumn.getColumn().setWidth(400);
+		userColumn.getColumn().setText(ProvSDKMessages.TrustPreferencePage_userColumn);
+		viewer.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
+		viewer.setInput(
+				new CertificateChecker(ProvSDKUIActivator.getDefault().getProvisioningAgent()).buildPGPTrustore());
+		Composite buttonComposite = createVerticalButtonBar(res);
+		buttonComposite.setLayoutData(new GridData(SWT.DEFAULT, SWT.BEGINNING, false, false));
+		Button exportButton = new Button(buttonComposite, SWT.PUSH);
+		exportButton.setText(ProvSDKMessages.TrustPreferencePage_export);
+		setVerticalButtonLayoutData(exportButton);
+		exportButton.addSelectionListener(SelectionListener.widgetSelectedAdapter(e -> {
+			ISelection sel = viewer.getSelection();
+			if (!(sel instanceof IStructuredSelection)) {
+				return;
+			}
+			Object o = ((IStructuredSelection)sel).getFirstElement();
+			if (!(o instanceof PGPPublicKey)) {
+				return;
+			}
+			PGPPublicKey key = (PGPPublicKey)o;
+			FileDialog dialog = new FileDialog(getShell(), SWT.SAVE);
+			dialog.setText(ProvSDKMessages.TrustPreferencePage_fileExportTitle);
+			dialog.setFilterExtensions(new String[] { "*.asc" }); //$NON-NLS-1$
+			dialog.setFileName(Long.toHexString(key.getKeyID()).toUpperCase() + ".asc"); //$NON-NLS-1$
+			String path = dialog.open();
+			if (path == null) {
+				return;
+			}
+			File destinationFile = new File(path);
+			try (OutputStream output = new ArmoredOutputStream(new FileOutputStream(destinationFile))) {
+				output.write(key.getEncoded());
+			} catch (IOException ex) {
+				ProvSDKUIActivator.getDefault().getLog()
+						.log(new Status(IStatus.ERROR, ProvUIActivator.PLUGIN_ID, ex.getMessage(), ex));
+			}
+		}));
+		viewer.addPostSelectionChangedListener(e -> exportButton.setEnabled(!e.getSelection().isEmpty()));
+		exportButton.setEnabled(!viewer.getSelection().isEmpty());
+		return res;
+	}
+
+	private Composite createVerticalButtonBar(Composite parent) {
+		// Create composite.
+		Composite composite = new Composite(parent, SWT.NONE);
+		initializeDialogUnits(composite);
+
+		// create a layout with spacing and margins appropriate for the font
+		// size.
+		GridLayout layout = new GridLayout();
+		layout.numColumns = 1;
+		layout.marginWidth = 5;
+		layout.marginHeight = 0;
+		layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
+		layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
+		composite.setLayout(layout);
+
+		return composite;
+	}
+
+	private GridData setVerticalButtonLayoutData(Button button) {
+		GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
+		int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
+		Point minSize = button.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
+		data.widthHint = Math.max(widthHint, minSize.x);
+		button.setLayoutData(data);
+		return data;
+	}
+}