Bug 577028 - A preference page to review and manage trusted PGP keys

Change-Id: Ib162e202f4b92888cca8d6e9c30d012b993a1bb0
Reviewed-on: https://git.eclipse.org/r/c/equinox/rt.equinox.p2/+/187303
Tested-by: Equinox Bot <equinox-bot@eclipse.org>
Reviewed-by: Mickael Istria <mistria@redhat.com>
diff --git a/bundles/org.eclipse.equinox.p2.engine/META-INF/MANIFEST.MF b/bundles/org.eclipse.equinox.p2.engine/META-INF/MANIFEST.MF
index 72d1dac..4397586 100644
--- a/bundles/org.eclipse.equinox.p2.engine/META-INF/MANIFEST.MF
+++ b/bundles/org.eclipse.equinox.p2.engine/META-INF/MANIFEST.MF
@@ -14,7 +14,7 @@
    org.eclipse.equinox.p2.ui.sdk.scheduler,
    org.eclipse.pde.build,
    org.eclipse.equinox.p2.director.app",
- org.eclipse.equinox.internal.p2.engine.phases;x-friends:="org.eclipse.equinox.p2.director.app,org.eclipse.equinox.p2.repository.tools,org.eclipse.equinox.p2.ui.sdk.scheduler,org.eclipse.equinox.p2.touchpoint.eclipse",
+ org.eclipse.equinox.internal.p2.engine.phases;x-friends:="org.eclipse.equinox.p2.director.app,org.eclipse.equinox.p2.repository.tools,org.eclipse.equinox.p2.ui.sdk,org.eclipse.equinox.p2.ui.sdk.scheduler,org.eclipse.equinox.p2.touchpoint.eclipse",
  org.eclipse.equinox.p2.engine;version="2.2.0",
  org.eclipse.equinox.p2.engine.query;version="2.0.0",
  org.eclipse.equinox.p2.engine.spi;version="2.0.0"
diff --git a/bundles/org.eclipse.equinox.p2.engine/src/org/eclipse/equinox/internal/p2/engine/phases/CertificateChecker.java b/bundles/org.eclipse.equinox.p2.engine/src/org/eclipse/equinox/internal/p2/engine/phases/CertificateChecker.java
index 511f3e5..12c3fd3 100644
--- a/bundles/org.eclipse.equinox.p2.engine/src/org/eclipse/equinox/internal/p2/engine/phases/CertificateChecker.java
+++ b/bundles/org.eclipse.equinox.p2.engine/src/org/eclipse/equinox/internal/p2/engine/phases/CertificateChecker.java
@@ -114,7 +114,7 @@
 					Collection<PGPSignature> signatures = PGPSignatureVerifier.getSignatures(artifact.getKey());
 					if (!signatures.isEmpty()) {
 						if (trustedKeys == null) {
-							trustedKeys = buildTrustore();
+							trustedKeys = buildPGPTrustore();
 						}
 						if (trustedKeysIds.isEmpty() && !trustedKeys.isEmpty()) {
 							trustedKeysIds.addAll(trustedKeys.stream()
@@ -286,7 +286,7 @@
 		artifacts.putAll(toAdd);
 	}
 
-	private Set<PGPPublicKey> buildTrustore() {
+	public Set<PGPPublicKey> buildPGPTrustore() {
 		IProfile profile = agent.getService(IProfileRegistry.class).getProfile(IProfileRegistry.SELF);
 		Set<PGPPublicKey> store = new HashSet<>(
 				PGPSignatureVerifier.readPublicKeys(profile.getProperty(TRUSTED_KEY_STORE_PROPERTY)));
diff --git a/bundles/org.eclipse.equinox.p2.ui.sdk/META-INF/MANIFEST.MF b/bundles/org.eclipse.equinox.p2.ui.sdk/META-INF/MANIFEST.MF
index 6929404..cc9e868 100644
--- a/bundles/org.eclipse.equinox.p2.ui.sdk/META-INF/MANIFEST.MF
+++ b/bundles/org.eclipse.equinox.p2.ui.sdk/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@
 Bundle-ManifestVersion: 2
 Bundle-Name: %bundleName
 Bundle-SymbolicName: org.eclipse.equinox.p2.ui.sdk;singleton:=true
-Bundle-Version: 1.2.1.qualifier
+Bundle-Version: 1.2.2.qualifier
 Bundle-Activator: org.eclipse.equinox.internal.p2.ui.sdk.ProvSDKUIActivator
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
@@ -12,8 +12,11 @@
  org.eclipse.core.runtime,
  org.eclipse.equinox.p2.ui;bundle-version="2.6.0"
 Import-Package: javax.xml.parsers,
+ org.bouncycastle.bcpg;version="1.69.0",
+ org.bouncycastle.openpgp;version="1.69.0",
  org.eclipse.compare;resolution:=optional,
  org.eclipse.compare.structuremergeviewer;resolution:=optional,
+ org.eclipse.equinox.internal.p2.engine.phases,
  org.eclipse.equinox.p2.core;version="[2.0.0,3.0.0)",
  org.eclipse.equinox.p2.engine;version="[2.0.0,3.0.0)",
  org.eclipse.equinox.p2.engine.query;version="[2.0.0,3.0.0)",
diff --git a/bundles/org.eclipse.equinox.p2.ui.sdk/plugin.properties b/bundles/org.eclipse.equinox.p2.ui.sdk/plugin.properties
index 672cb23..372fe98 100644
--- a/bundles/org.eclipse.equinox.p2.ui.sdk/plugin.properties
+++ b/bundles/org.eclipse.equinox.p2.ui.sdk/plugin.properties
@@ -28,5 +28,7 @@
 sitesPrefPage = Available Software Sites
 installedSoftwarePage = Installed Software
 installHistoryPage = Installation History
+trustPrefPage = Trust
 preferenceKeywords.general=automatic update schedule remove download site software uninstall install import bundle
+preferenceKeywords.trust=trust security keys pgp gpg
 preferences=Update and Install Preferences
diff --git a/bundles/org.eclipse.equinox.p2.ui.sdk/plugin.xml b/bundles/org.eclipse.equinox.p2.ui.sdk/plugin.xml
index 249d783..69e9731 100644
--- a/bundles/org.eclipse.equinox.p2.ui.sdk/plugin.xml
+++ b/bundles/org.eclipse.equinox.p2.ui.sdk/plugin.xml
@@ -22,6 +22,14 @@
             <keywordReference id="org.eclipse.equinox.p2.ui.sdk.updates.general"/>
       </page>
 
+       <page
+            name="%trustPrefPage"
+            category="org.eclipse.equinox.internal.p2.ui.sdk.ProvisioningPreferencePage"
+            class="org.eclipse.equinox.internal.p2.ui.sdk.TrustPreferencePage"
+            id="org.eclipse.equinox.internal.p2.ui.sdk.TrustPreferencePage">
+            <keywordReference id="org.eclipse.equinox.p2.ui.sdk.updates.trust"/>
+      </page>
+
    </extension>
 
       <extension
@@ -29,6 +37,10 @@
       <keyword
             label="%preferenceKeywords.general"
             id="org.eclipse.equinox.p2.ui.sdk.updates.general"/>
+      <keyword
+            id="org.eclipse.equinox.p2.ui.sdk.updates.trust"
+            label="%preferenceKeywords.trust">
+      </keyword>
       </extension>
 
 
diff --git a/bundles/org.eclipse.equinox.p2.ui.sdk/pom.xml b/bundles/org.eclipse.equinox.p2.ui.sdk/pom.xml
index a1a7b1f..0cc56b3 100644
--- a/bundles/org.eclipse.equinox.p2.ui.sdk/pom.xml
+++ b/bundles/org.eclipse.equinox.p2.ui.sdk/pom.xml
@@ -9,6 +9,6 @@
 	</parent>
 	<groupId>org.eclipse.equinox</groupId>
 	<artifactId>org.eclipse.equinox.p2.ui.sdk</artifactId>
-	<version>1.2.1-SNAPSHOT</version>
+	<version>1.2.2-SNAPSHOT</version>
 	<packaging>eclipse-plugin</packaging>
 </project>
diff --git a/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/ProvSDKMessages.java b/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/ProvSDKMessages.java
index e985ebb..4c73980 100644
--- a/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/ProvSDKMessages.java
+++ b/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/ProvSDKMessages.java
@@ -50,5 +50,11 @@
 	public static String UpdateHandler_ProgressTaskName;
 	public static String RemediationOperation_ResolveJobName;
 	public static String RemediationOperation_ResolveJobTask;
+	public static String TrustPreferencePage_title;
+	public static String TrustPreferencePage_export;
+	public static String TrustPreferencePage_idColumn;
+	public static String TrustPreferencePage_userColumn;
+	public static String TrustPreferencePage_fileExportTitle;
+	public static String TrustPreferencePage_pgpIntro;
 
 }
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 0000000..4b4c243
--- /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;
+	}
+}
diff --git a/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/messages.properties b/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/messages.properties
index e91eb07..4e79e32 100644
--- a/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/messages.properties
+++ b/bundles/org.eclipse.equinox.p2.ui.sdk/src/org/eclipse/equinox/internal/p2/ui/sdk/messages.properties
@@ -34,4 +34,11 @@
 UpdateHandler_NoSitesTitle=No Updates Found
 UpdateHandler_ProgressTaskName=Checking for updates...
 RemediationOperation_ResolveJobName=Searching alternate solutions...
-RemediationOperation_ResolveJobTask=Some items cannot be at the highest version. Searching for the highest common denominator ...
\ No newline at end of file
+RemediationOperation_ResolveJobTask=Some items cannot be at the highest version. Searching for the highest common denominator ...
+TrustPreferencePage_title=Trust
+TrustPreferencePage_export=E&xport...
+TrustPreferencePage_idColumn=Id
+TrustPreferencePage_userColumn=User
+TrustPreferencePage_fileExportTitle=Export PGP public key
+TrustPreferencePage_pgpIntro=The following PGP public keys are considered as trusted.\n\
+Artifacts that are signed and verified by one of those keys will be trusted and installed without further trust confirmation request.
\ No newline at end of file