[ISSUE 606] Discard signatures from jar file that was mutated

bnd-plugins/org.eclipse.transformer.bnd.analyzer/src/test/java/org/eclipse/transformer/bnd/analyzer/BndAnalyzerPluginTest.java

@@ -230,6 +230,7 @@ void options_test() throws Exception {
 		try (Processor processor = new Processor()) {
 			processor.setProperty("-transformer", "tb;arg=value1");
 			processor.setProperty("-transformer.overwrite", "overwrite");
+			processor.setProperty("-transformer.stripSignatures", "stripSignatures");
 			processor.setProperty("-transformer.morebundles", "bundles;arg=value2");
 			processor.setProperty("-transformer.immediate",
 				"immediate;option=tv;package=org.eclipse.transformer.test.api;version=\"[2.0\\,3.0);Export-Package=2.0.0\"");
@@ -253,6 +254,11 @@ void options_test() throws Exception {
 			assertThat(options.getOptionValues(AppOption.WIDEN_ARCHIVE_NESTING)).isNull();
 			assertThat(options.getOptionValue(AppOption.WIDEN_ARCHIVE_NESTING)).isNull();
 
+			assertThat(options.getDefaultValue(AppOption.STRIP_SIGNATURES)).isNull();
+			assertThat(options.hasOption(AppOption.STRIP_SIGNATURES)).isTrue();
+			assertThat(options.getOptionValues(AppOption.STRIP_SIGNATURES)).isEmpty();
+			assertThat(options.getOptionValue(AppOption.STRIP_SIGNATURES)).isNull();
+
 			assertThat(options.getOptionValues(AppOption.RULES_IMMEDIATE_DATA)).containsExactly("tv",
 				"org.eclipse.transformer.test.api", "[2.0\\,3.0);Export-Package=2.0.0");
 		}

maven-plugins/transformer-maven-plugin/README.md

@@ -51,8 +51,9 @@ A list value of `-` (Hyphen-minus) is ignored. This can be used to configure an
 |`immediates` | A list of immediate options. |
 |`invert` | If `true`, invert the rename rules. _Defaults to `false`_. |
 |`overwrite` | If `true`, the items which transform to the same path as an existing item overwrite the existing item. _Defaults to `false`_. |
-|`widen` | If `true`, By default, archive nesting is restricted to JavaEE active locations. This may be relaxed to enable JAR and ZIP within JAR, ZIP within ZIP, and ZIP within EAR, WAR, and RAR. _Defaults to `false`_. |
+|`widen` | If `true`, by default, archive nesting is restricted to JavaEE active locations. This may be relaxed to enable JAR and ZIP within JAR, ZIP within ZIP, and ZIP within EAR, WAR, and RAR. _Defaults to `false`_. |
 |`jakartaDefaults` | If `true`, the Jakarta rule defaults are included. _Defaults to `false`_. |
+|`stripSignatures` | If `true`, signature files will be removed from signed JAR files. _Defaults to `false`_. |
 
 ```xml
 <rules>

maven-plugins/transformer-maven-plugin/src/main/java/org/eclipse/transformer/maven/AbstractTransformerMojo.java

@@ -58,7 +58,7 @@ public abstract class AbstractTransformerMojo extends AbstractMojo {
 	 * <p>
 	 * The rules configuration includes: selections, renames, versions, bundles,
 	 * directs, texts, perClassConstants, immediates, invert, overwrite, widen,
-	 * and jakartaDefaults.
+	 * jakartaDefaults, and stripSignatures.
 	 */
 	@Parameter
 	private TransformerRules		rules	= new TransformerRules();

maven-plugins/transformer-maven-plugin/src/main/java/org/eclipse/transformer/maven/TransformerMojoOptions.java

@@ -109,6 +109,9 @@ public boolean hasOption(AppOption option) {
 			case WIDEN_ARCHIVE_NESTING :
 				has = rules.isWiden();
 				break;
+			case STRIP_SIGNATURES :
+				has = rules.isStripSignatures();
+				break;
 			default :
 				has = TransformOptions.super.hasOption(option);
 				break;

maven-plugins/transformer-maven-plugin/src/main/java/org/eclipse/transformer/maven/TransformerRunMojo.java

@@ -59,6 +59,9 @@ public class TransformerRunMojo extends AbstractMojo {
 	@Parameter(defaultValue = "true", property = "transformer-plugin.overwrite", required = true)
 	private boolean				overwrite;
 
+	@Parameter(defaultValue = "false", property = "transformer-plugin.stripSignatures", required = false)
+	private boolean				stripSignatures;
+
 	@Parameter(defaultValue = "true", property = "transformer-plugin.attach", required = true)
 	private boolean				attach;
 
@@ -131,6 +134,8 @@ public boolean hasOption(AppOption option) {
 						return overwrite;
 					case INVERT :
 						return invert;
+					case STRIP_SIGNATURES:
+						return stripSignatures;
 					default :
 						return TransformOptions.super.hasOption(option);
 				}
@@ -257,4 +262,7 @@ void setAttach(boolean attach) {
 		this.attach = attach;
 	}
 
+	void setStripSignatures(boolean stripSignatures) {
+		this.stripSignatures = stripSignatures;
+	}
 }

maven-plugins/transformer-maven-plugin/src/main/java/org/eclipse/transformer/maven/configuration/TransformerRules.java

@@ -29,6 +29,7 @@ public class TransformerRules {
 	private boolean			overwrite;
 	private boolean			widen;
 	private boolean			jakartaDefaults;
+	private boolean			stripSignatures;
 
 	public TransformerRules() {}
 
@@ -134,12 +135,26 @@ public void setWiden(boolean widen) {
 		this.widen = widen;
 	}
 
+	/**
+	 * @return the stripSignatures
+	 */
+	public boolean isStripSignatures() {
+		return stripSignatures;
+	}
+
+	/**
+	 * @param stripSignatures the stripSignatures to set
+	 */
+	public void setStripSignatures(boolean stripSignatures) {
+		this.stripSignatures = stripSignatures;
+	}
+
 	@Override
 	public String toString() {
 		return String.format(
-			"selections=%s, renames=%s, versions=%s, bundles=%s, directs=%s, texts=%s, perClassConstants=%s, immediates=%s, invert=%s, overwrite=%s, widen=%s, jakartaDefaults=%s",
+			"selections=%s, renames=%s, versions=%s, bundles=%s, directs=%s, texts=%s, perClassConstants=%s, immediates=%s, invert=%s, overwrite=%s, widen=%s, jakartaDefaults=%s, stripSignatures=%s",
 			getSelections(), getRenames(), getVersions(), getBundles(), getDirects(), getTexts(),
-			getPerClassConstants(), getImmediates(), isInvert(), isOverwrite(), isWiden(), isJakartaDefaults());
+			getPerClassConstants(), getImmediates(), isInvert(), isOverwrite(), isWiden(), isJakartaDefaults(), isStripSignatures());
 	}
 
 }

maven-plugins/transformer-maven-plugin/src/test/java/org/eclipse/transformer/maven/TransformerRunMojoTest.java

@@ -11,15 +11,19 @@
 
 package org.eclipse.transformer.maven;
 
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 
 import java.io.File;
 import java.io.IOException;
+import java.util.Enumeration;
+import java.util.HashSet;
 import java.util.Set;
 import java.util.stream.Collectors;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
 
 import org.apache.maven.artifact.Artifact;
 import org.apache.maven.artifact.DefaultArtifact;
@@ -28,8 +32,12 @@
 import org.apache.maven.plugin.testing.stubs.DefaultArtifactHandlerStub;
 import org.apache.maven.project.MavenProject;
 import org.apache.maven.project.MavenProjectHelper;
+import org.eclipse.transformer.action.ElementAction;
+import org.jboss.shrinkwrap.api.Archive;
 import org.jboss.shrinkwrap.api.ShrinkWrap;
+import org.jboss.shrinkwrap.api.asset.FileAsset;
 import org.jboss.shrinkwrap.api.exporter.ZipExporter;
+import org.jboss.shrinkwrap.api.spec.JavaArchive;
 import org.jboss.shrinkwrap.api.spec.WebArchive;
 import org.junit.Rule;
 import org.junit.Test;
@@ -58,15 +66,13 @@ public void testProjectArtifactTransformerPlugin() throws Exception {
 		mojo.setOutputDirectory(tmp.newFolder(name.getMethodName()));
 		mojo.setAttach(true);
 
-		assertNotNull(mojo);
-
 		final File targetDirectory = this.resources.getBasedir("transform-build-artifact");
 		final File modelDirectory = new File(targetDirectory, "target/model");
 		final File pom = new File(targetDirectory, "pom.xml");
 
 		final MavenProject mavenProject = createMavenProject(modelDirectory, pom, "war", "rest-sample");
 		mavenProject.getArtifact()
-			.setFile(createService());
+			.setFile(createService("war", targetDirectory));
 
 		mojo.setProject(mavenProject);
 		mojo.setClassifier("transformed");
@@ -100,8 +106,6 @@ public void testMultipleArtifactTransformerPlugin() throws Exception {
 		mojo.setProjectHelper(this.rule.lookup(MavenProjectHelper.class));
 		mojo.setAttach(true);
 
-		assertNotNull(mojo);
-
 		final File targetDirectory = this.resources.getBasedir("transform-build-artifact");
 		final File modelDirectory = new File(targetDirectory, "target/model");
 		final File pom = new File(targetDirectory, "pom.xml");
@@ -113,11 +117,11 @@ public void testMultipleArtifactTransformerPlugin() throws Exception {
 		mojo.setOutputDirectory(tmp.newFolder(name.getMethodName()));
 
 		mojo.getProjectHelper()
-			.attachArtifact(mavenProject, "zip", "test1", createService());
+			.attachArtifact(mavenProject, "zip", "test1", createService("war", targetDirectory));
 		mojo.getProjectHelper()
-			.attachArtifact(mavenProject, "zip", "test2", createService());
+			.attachArtifact(mavenProject, "zip", "test2", createService("war", targetDirectory));
 		mojo.getProjectHelper()
-			.attachArtifact(mavenProject, "zip", "test3", createService());
+			.attachArtifact(mavenProject, "zip", "test3", createService("war", targetDirectory));
 
 		final Artifact[] sourceArtifacts = mojo.getSourceArtifacts();
 		assertEquals(3, sourceArtifacts.length);
@@ -163,15 +167,13 @@ public void testProjectArtifactTransformerPluginNoAttach() throws Exception {
 		mojo.setOutputDirectory(tmp.newFolder(name.getMethodName()));
 		mojo.setAttach(false);
 
-		assertNotNull(mojo);
-
 		final File targetDirectory = this.resources.getBasedir("transform-build-artifact");
 		final File modelDirectory = new File(targetDirectory, "target/model");
 		final File pom = new File(targetDirectory, "pom.xml");
 
 		final MavenProject mavenProject = createMavenProject(modelDirectory, pom, "war", "rest-sample");
 		mavenProject.getArtifact()
-			.setFile(createService());
+			.setFile(createService("war", targetDirectory));
 
 		mojo.setProject(mavenProject);
 		mojo.setClassifier("transformed");
@@ -190,6 +192,51 @@ public void testProjectArtifactTransformerPluginNoAttach() throws Exception {
 			.size());
 	}
 
+	@Test
+	public void testProjectArtifactTransformerPluginStripSignatureFiles() throws Exception {
+		final TransformerRunMojo mojo = new TransformerRunMojo();
+		mojo.setProjectHelper(this.rule.lookup(MavenProjectHelper.class));
+		mojo.setOverwrite(true);
+		mojo.setOutputDirectory(tmp.newFolder(name.getMethodName()));
+		mojo.setAttach(true);
+		mojo.setStripSignatures(true);
+
+		final File targetDirectory = this.resources.getBasedir("transform-build-jar-artifact");
+		final File modelDirectory = new File(targetDirectory, "target/model");
+		final File pom = new File(targetDirectory, "pom.xml");
+
+		final MavenProject mavenProject = createMavenProject(modelDirectory, pom, "jar", "rest-sample");
+		mavenProject.getArtifact()
+			.setFile(createService("jar", targetDirectory));
+
+		mojo.setProject(mavenProject);
+		mojo.setClassifier("transformed");
+
+		final Artifact[] sourceArtifacts = mojo.getSourceArtifacts();
+		assertEquals(1, sourceArtifacts.length);
+		final Artifact sourceArtifact = sourceArtifacts[0];
+		assertEquals("org.superbiz.rest", sourceArtifact.getGroupId());
+		assertEquals("rest-sample", sourceArtifact.getArtifactId());
+		assertEquals("1.0-SNAPSHOT", sourceArtifact.getVersion());
+		assertEquals("jar", sourceArtifact.getType());
+		assertNull(sourceArtifact.getClassifier());
+		assertThat(getSignatureFileEntries(sourceArtifact.getFile())).containsExactly("META-INF/MYKEY.SF", "META-INF/MYKEY.DSA");
+
+		mojo.transform(sourceArtifacts[0]);
+
+		assertEquals(1, mavenProject.getAttachedArtifacts()
+			.size());
+		final Artifact transformedArtifact = mavenProject.getAttachedArtifacts()
+			.get(0);
+
+		assertEquals("org.superbiz.rest", transformedArtifact.getGroupId());
+		assertEquals("rest-sample", transformedArtifact.getArtifactId());
+		assertEquals("1.0-SNAPSHOT", transformedArtifact.getVersion());
+		assertEquals("jar", transformedArtifact.getType());
+		assertEquals("transformed", transformedArtifact.getClassifier());
+		assertThat(getSignatureFileEntries(transformedArtifact.getFile())).isEmpty();
+	}
+
 	public MavenProject createMavenProject(final File modelDirectory, final File pom, final String packaging,
 		final String artfifactId) {
 		final MavenProject mavenProject = new MavenProject();
@@ -205,19 +252,44 @@ public MavenProject createMavenProject(final File modelDirectory, final File pom
 			.setOutputDirectory(modelDirectory.getAbsolutePath());
 		mavenProject.setArtifact(
 			new DefaultArtifact(mavenProject.getGroupId(), mavenProject.getArtifactId(), mavenProject.getVersion(),
-				(String) null, "war", (String) null, new DefaultArtifactHandlerStub(packaging, null)));
+				null, packaging, null, new DefaultArtifactHandlerStub(packaging, null)));
 		return mavenProject;
 	}
 
-	public File createService() throws IOException {
-		final File tempFile = File.createTempFile("service", ".war");
+	private static File createService(String packaging, File targetDirectory) throws IOException {
+		final File tempFile = File.createTempFile("service", "." + packaging);
 		tempFile.delete();
 
-		final WebArchive webArchive = ShrinkWrap.create(WebArchive.class, "service.war")
-			.addClass(EchoService.class);
+		final Archive archive;
+		if (packaging.equals("jar")) {
+			archive = ShrinkWrap.create(JavaArchive.class, "service." + packaging)
+				.addClass(EchoService.class);
+		} else {
+			archive = ShrinkWrap.create(WebArchive.class, "service." + packaging)
+				.addClass(EchoService.class);
+		}
+
+		if (packaging.equals("jar")) {
+			archive.add(new FileAsset(new File(targetDirectory, "META-INF/MYKEY.SF")), "META-INF/MYKEY.SF");
+			archive.add(new FileAsset(new File(targetDirectory, "META-INF/MYKEY.DSA")), "META-INF/MYKEY.DSA");
+		}
 
-		webArchive.as(ZipExporter.class)
+		archive.as(ZipExporter.class)
 			.exportTo(tempFile, true);
 		return tempFile;
 	}
+
+	private static Set<String> getSignatureFileEntries(File file) throws IOException {
+		try (ZipFile zipFile = new ZipFile(file)) {
+			final Enumeration<? extends ZipEntry> entries = zipFile.entries();
+			final Set<String> signatureFiles = new HashSet<>();
+			while (entries.hasMoreElements()) {
+				final ZipEntry zipEntry = entries.nextElement();
+				if (ElementAction.SIGNATURE_FILE_PATTERN.matcher(zipEntry.getName()).matches()) {
+					signatureFiles.add(zipEntry.getName());
+				}
+			}
+			return signatureFiles;
+		}
+	}
 }