eolivelli commented on a change in pull request #286: [MNG-6656] Introduce base 
for build/consumer process
URL: https://github.com/apache/maven/pull/286#discussion_r330295497
 
 

 ##########
 File path: 
maven-core/src/main/java/org/apache/maven/internal/aether/DefaultRepositorySystemSessionFactory.java
 ##########
 @@ -238,9 +263,83 @@ else if ( request.isUpdateSnapshots() )
         mavenRepositorySystem.injectProxy( session, 
request.getPluginArtifactRepositories() );
         mavenRepositorySystem.injectAuthentication( session, 
request.getPluginArtifactRepositories() );
 
+        if ( Boolean.getBoolean( "maven.experimental.buildconsumer" ) )
+        {
+            session.setFileTransformerManager( newFileTransformerManager() );
+        }
         return session;
     }
 
+    private FileTransformerManager newFileTransformerManager()
+    {
+        return new FileTransformerManager()
+        {
+            @Override
+            public Collection<FileTransformer> getTransformersForArtifact( 
final Artifact artifact )
+            {
+                Collection<FileTransformer> transformers = new ArrayList<>();
+                if ( "pom".equals( artifact.getExtension() ) )
+                {
+                    final TransformerFactory transformerFactory = 
TransformerFactory.newInstance();
 
 Review comment:
   This shuld deserve a separate discussion, but aren't we following OWASP 
security guidelines for parsing XML potentially downloaded from remote sources? 
   Stuff like 
https://github.com/OWASP/CheatSheetSeries/blob/master/cheatsheets/XML_External_Entity_Prevention_Cheat_Sheet.md

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