213 lines
8.6 KiB
Diff
213 lines
8.6 KiB
Diff
From b0e7fb7161f2260fbbeab9435da755b2fefe6570 Mon Sep 17 00:00:00 2001
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From: Mikolaj Izdebski <mizdebsk@redhat.com>
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Date: Thu, 29 May 2014 18:18:30 +0200
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Subject: [PATCH 1/3] Fix JAR post-processing during installation
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This improves native code detection and Javapackages manifest
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injection.
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---
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.../install/impl/DefaultArtifactInstaller.java | 5 ++
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.../xmvn/tools/install/impl/JarUtils.java | 78 ++++++++++++++++++----
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2 files changed, 70 insertions(+), 13 deletions(-)
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diff --git a/xmvn-tools/xmvn-install/src/main/java/org/fedoraproject/xmvn/tools/install/impl/DefaultArtifactInstaller.java b/xmvn-tools/xmvn-install/src/main/java/org/fedoraproject/xmvn/tools/install/impl/DefaultArtifactInstaller.java
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index d973447..38a5eab 100644
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--- a/xmvn-tools/xmvn-install/src/main/java/org/fedoraproject/xmvn/tools/install/impl/DefaultArtifactInstaller.java
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+++ b/xmvn-tools/xmvn-install/src/main/java/org/fedoraproject/xmvn/tools/install/impl/DefaultArtifactInstaller.java
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@@ -16,6 +16,7 @@
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package org.fedoraproject.xmvn.tools.install.impl;
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import static org.fedoraproject.xmvn.tools.install.impl.JarUtils.containsNativeCode;
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+import static org.fedoraproject.xmvn.tools.install.impl.JarUtils.injectManifest;
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import static org.fedoraproject.xmvn.tools.install.impl.JarUtils.usesNativeCode;
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import java.nio.file.Path;
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@@ -65,10 +66,14 @@ public class DefaultArtifactInstaller
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new DefaultArtifact( am.getGroupId(), am.getArtifactId(), am.getExtension(), am.getClassifier(),
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am.getVersion() );
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+ // Handle native JARs/WARs etc
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Path artifactPath = Paths.get( am.getPath() );
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if ( usesNativeCode( artifactPath ) || containsNativeCode( artifactPath ) )
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am.getProperties().setProperty( "native", "true" );
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+ // Inject Javapackages manifests
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+ injectManifest( artifactPath, artifact );
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+
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Map<String, String> properties = new LinkedHashMap<>();
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for ( String name : am.getProperties().stringPropertyNames() )
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properties.put( name, am.getProperties().getProperty( name ) );
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diff --git a/xmvn-tools/xmvn-install/src/main/java/org/fedoraproject/xmvn/tools/install/impl/JarUtils.java b/xmvn-tools/xmvn-install/src/main/java/org/fedoraproject/xmvn/tools/install/impl/JarUtils.java
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index 0ba8920..5dd09ea 100644
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--- a/xmvn-tools/xmvn-install/src/main/java/org/fedoraproject/xmvn/tools/install/impl/JarUtils.java
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+++ b/xmvn-tools/xmvn-install/src/main/java/org/fedoraproject/xmvn/tools/install/impl/JarUtils.java
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@@ -30,17 +30,22 @@ import org.objectweb.asm.ClassReader;
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import org.objectweb.asm.ClassVisitor;
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import org.objectweb.asm.MethodVisitor;
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import org.objectweb.asm.Opcodes;
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+import org.slf4j.Logger;
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+import org.slf4j.LoggerFactory;
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import org.fedoraproject.xmvn.artifact.Artifact;
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import org.fedoraproject.xmvn.utils.ArtifactUtils;
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+import org.fedoraproject.xmvn.utils.FileUtils;
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/**
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* @author Mikolaj Izdebski
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*/
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class JarUtils
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{
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+ private static final Logger logger = LoggerFactory.getLogger( JarUtils.class );
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+
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/**
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- * Heuristically try to determine whether given JAR (or WAR, EAR, ...) file contains native (architecture-dependant)
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+ * Heuristically try to determine whether given JAR (or WAR, EAR, ...) file contains native (architecture-dependent)
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* code.
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* <p>
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* Currently this code only checks only for ELF binaries, but that behavior can change in future.
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@@ -63,19 +68,43 @@ class JarUtils
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if ( ent.isDirectory() )
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continue;
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if ( jis.read() == ELFMAG0 && jis.read() == ELFMAG1 && jis.read() == ELFMAG2 && jis.read() == ELFMAG3 )
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+ {
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+ logger.debug( "Native code found inside {}: {}", jar, ent.getName() );
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return true;
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+ }
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}
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+ logger.trace( "Native code not found inside {}", jar );
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return false;
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}
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catch ( IOException e )
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{
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+ logger.debug( "I/O exception caught when trying to determine whether JAR contains native code: {}", jar, e );
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return false;
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}
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}
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+ static class NativeMethodFound
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+ extends RuntimeException
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+ {
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+ private static final long serialVersionUID = 1;
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+
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+ final String className;
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+
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+ final String methodName;
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+
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+ final String methodSignature;
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+
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+ NativeMethodFound( String className, String methodName, String methodSignature )
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+ {
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+ this.className = className;
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+ this.methodName = methodName;
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+ this.methodSignature = methodSignature;
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+ }
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+ }
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+
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/**
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- * Heuristically try to determine whether given JAR (or WAR, EAR, ...) file is using native (architecture-dependant)
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+ * Heuristically try to determine whether given JAR (or WAR, EAR, ...) file is using native (architecture-dependent)
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* code.
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* <p>
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* Currently this code only checks if any class file declares Java native methods, but that behavior can change in
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@@ -90,29 +119,33 @@ class JarUtils
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ZipEntry ent;
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while ( ( ent = jis.getNextEntry() ) != null )
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{
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- if ( ent.isDirectory() || !ent.getName().endsWith( ".class" ) )
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+ final String entryName = ent.getName();
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+ if ( ent.isDirectory() || !entryName.endsWith( ".class" ) )
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continue;
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- final boolean[] usesNativeCode = new boolean[1];
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-
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- new ClassReader( jis ).accept( new ClassVisitor( Opcodes.ASM4 )
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+ new ClassReader( jis ).accept( new ClassVisitor( Opcodes.ASM5 )
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{
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@Override
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public MethodVisitor visitMethod( int flags, String name, String desc, String sig, String[] exc )
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{
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- usesNativeCode[0] = ( flags & Opcodes.ACC_NATIVE ) != 0;
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+ if ( ( flags & Opcodes.ACC_NATIVE ) != 0 )
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+ throw new NativeMethodFound( entryName, name, sig );
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+
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return super.visitMethod( flags, name, desc, sig, exc );
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}
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}, ClassReader.SKIP_CODE );
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-
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- if ( usesNativeCode[0] )
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- return true;
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}
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return false;
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}
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+ catch ( NativeMethodFound e )
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+ {
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+ logger.debug( "Native method {}({}) found in {}: {}", e.methodName, e.methodSignature, jar, e.className );
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+ return true;
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+ }
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catch ( IOException e )
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{
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+ logger.debug( "I/O exception caught when trying to determine whether JAR uses native code: {}", jar, e );
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return false;
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}
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}
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@@ -123,6 +156,11 @@ class JarUtils
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{
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Attributes attributes = manifest.getMainAttributes();
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attributes.putValue( key, value );
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+ logger.trace( "Injected field {}: {}", key, value );
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+ }
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+ else
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+ {
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+ logger.trace( "Not injecting field {} (it has default value \"{}\")", key, defaultValue );
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}
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}
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@@ -132,18 +170,21 @@ class JarUtils
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*
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* @param targetJar
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* @param artifact
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- * @throws IOException
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*/
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public static void injectManifest( Path targetJar, Artifact artifact )
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- throws IOException
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{
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- targetJar = targetJar.toRealPath();
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+ logger.trace( "Trying to inject manifest to {}", artifact );
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+
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+ targetJar = FileUtils.followSymlink( targetJar );
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try (JarInputStream jis = new JarInputStream( Files.newInputStream( targetJar ) ))
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{
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Manifest mf = jis.getManifest();
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if ( mf == null )
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+ {
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+ logger.trace( "Manifest injection skipped: no pre-existing manifest found to update" );
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return;
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+ }
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putAttribute( mf, ArtifactUtils.MF_KEY_GROUPID, artifact.getGroupId(), null );
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putAttribute( mf, ArtifactUtils.MF_KEY_ARTIFACTID, artifact.getArtifactId(), null );
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@@ -166,6 +207,17 @@ class JarUtils
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jos.write( buf, 0, sz );
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}
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}
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+ catch ( IOException e )
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+ {
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+ // Re-throw exceptions that occur when processing JAR file after reading header and manifest.
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+ throw new RuntimeException( e );
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+ }
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+
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+ logger.trace( "Manifest injected successfully" );
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+ }
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+ catch ( IOException e )
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+ {
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+ logger.debug( "I/O exception caught when trying to read JAR: {}", targetJar );
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}
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}
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}
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--
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1.9.0
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