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Dragome SDK module: bytecode to javascript compiler
/*******************************************************************************
* Copyright (c) 2011-2014 Fernando Petrola
*
* This file is part of Dragome SDK.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Public License v3.0
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/gpl.html
******************************************************************************/
// Copyright 2011 The j2js Authors. All Rights Reserved.
//
// This file is part of j2js.
//
// j2js is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// j2js is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with j2js. If not, see entryPoints= new ArrayList();
private transient Log logger;
private transient String entryPointClassName;
private Project project;
private Set taintedSignatures= new LinkedHashSet();
private Set unprocessedTaintedSignatures= new LinkedHashSet();
String[] patterns;
private Collection resolvedTypes= new ArrayList();
private transient File targetLocation;
private FileFilter classpathFilter;
public Assembly()
{
// patterns= Utils.getProperty("dragomeJs.taintIfInstantiated").split(";");
// for (int i= 0; i < patterns.length; i++)
// {
//
// String pattern= patterns[i].replaceAll("\\s", "");
// pattern= pattern.replaceAll("\\.", "\\\\.");
// pattern= pattern.replaceAll("\\*", ".*");
// pattern= pattern.replaceAll("\\(", "\\\\(");
// pattern= pattern.replaceAll("\\)", "\\\\)");
// patterns[i]= pattern;
// }
}
private void pipeFileToStream(Writer writer, String relativeFilePath) throws IOException
{
FileObject fileObject= DragomeJsCompiler.compiler.fileManager.getFileForInput(relativeFilePath);
String content;
if (DragomeJsCompiler.compiler.isCompression())
{
JavaScriptCompressor compressor= new JavaScriptCompressor();
content= compressor.compress(fileObject.openInputStream());
}
else
{
content= IOUtils.toString(fileObject.openInputStream());
}
writer.write(content);
fileObject.close();
}
private void removeOldAssemblies(File assembly)
{
final String numericPostfixPattern= "-[0-9]*$";
final String prefix= assembly.getName().replaceAll(numericPostfixPattern, "");
File[] oldAssemblies= assembly.getParentFile().listFiles(new FilenameFilter()
{
public boolean accept(File dir1, String name)
{
return name.matches(prefix + numericPostfixPattern);
}
});
if (oldAssemblies == null)
{
return;
}
for (File oldAssemblyDir : oldAssemblies)
{
for (File file : oldAssemblyDir.listFiles())
{
file.delete();
}
oldAssemblyDir.delete();
}
}
public int createAssembly() throws IOException
{
logger= Log.getLogger();
logger.debug("Packing ...");
removeOldAssemblies(targetLocation);
String loaderName= DragomeJsCompiler.compiler.getTargetPlatform().toLowerCase();
Writer writer;
if ("javascript".equals(loaderName))
{
writer= new FileWriter(targetLocation);
pipeFileToStream(writer, "dragome/javascript/loaders/" + loaderName + ".js");
}
else
{
targetLocation.mkdirs();
writer= new JunkWriter(targetLocation);
}
//writer.write("// Assembly generated by dragomeJs " + Utils.getVersion() + " on " + Utils.currentTimeStamp() + "\n");
writer.write("//***********************************************************************\n");
writer.write("//* Generated with Dragome SDK Copyright (c) 2011-2014 Fernando Petrola *\n");
writer.write("//***********************************************************************\n");
writer.write("\n");
// pipeFileToStream(writer, "javascript/q-3.0.js");
pipeFileToStream(writer, "dragome/javascript/runtime.js");
// writer.write("dragomeJs.assemblyVersion = 'dragomeJs Assembly " + targetLocation.getName() + "@" + Utils.currentTimeStamp() + "';\n");
writer.write("dragomeJs.userData = {};\n");
// int classCount= 0;
// for (ClassUnit fileUnit : project.getClasses())
// {
// if (!fileUnit.isTainted())
// continue;
// writer.write("dragomeJs.");
// writer.write(DECLARECLASS);
// writer.write("(\"" + fileUnit.getSignature() + "\"");
// writer.write(", " + fileUnit.getSignature().getId());
// writer.write(");\n");
// classCount++;
// }
project.currentGeneratedMethods= 0;
if (DragomeJsCompiler.compiler.getSingleEntryPoint() != null)
{
Signature signature= project.getSignature(DragomeJsCompiler.compiler.getSingleEntryPoint());
ClassUnit clazz= project.getClassUnit(signature.className());
clazz.write(0, writer);
}
else
{
ClassUnit object= project.getJavaLangObject();
object.write(0, writer);
do
{
ClassUnit.oneWritten= false;
for (ClassUnit cu : project.getClasses())
{
// if (cu.isInterface)
{
cu.write(0, writer);
}
}
}
while (ClassUnit.oneWritten);
}
ClassUnit stringClazz= project.getClassUnit(String.class.getName());
ClassUnit stringSuperClazz= stringClazz.getSuperUnit();
Collection declaredMembers= new ArrayList(stringClazz.getDeclaredMembers());
declaredMembers.addAll(stringSuperClazz.getDeclaredMembers());
for (MemberUnit memberUnit : declaredMembers)
{
Signature signature= memberUnit.getSignature();
String normalizeExpression= DragomeJavaScriptGenerator.normalizeExpression(signature);
writer.write("String.prototype." + normalizeExpression + "= java_lang_String.prototype." + normalizeExpression + ";\n");
}
writer.write("String.prototype.classname= \"java_lang_String\";\n");
for (MemberUnit member : ClassUnit.stringInits)
{
String memberData= member.getData();
member.setData(member.getData().substring(1));
member.write(1, writer);
member.setData(memberData);
if (member instanceof ProcedureUnit)
{
project.currentGeneratedMethods++;
writer.flush();
}
}
// project.writeClinits(writer);
if (getProject().getOrCreateClassUnit("java.lang.String").isTainted())
{
writer.write("String.prototype.clazz = java_lang_String;\n");
}
// writer.write("dragomeJs.onLoad('" + entryPointClassName + "#main(java.lang.String[])void');\n");
writer.write("javascript_Utils.$init$void();\n");
project.writeSignatures(writer);
writer.write("java_lang_Object.prototype.toString= function (){return this.$toString$java_lang_String();};\n"); //TODO mover despues de creacion de Object
// writer.write("Array.prototype.$clone$java_lang_Object= java_lang_Object.prototype.$clone$java_lang_Object;\n"); //TODO mover despues de creacion de Object
writeAnnotationsInsertion(writer);
// writer.write("new " + mainClass + "();\n");
// writer.write(mainClass + "." + mainMethod + "();\n");
writer.write("$(function(){_ed.executeMainClass();});");
writer.close();
return project.currentGeneratedMethods;
}
private void writeAnnotationsInsertion(Writer writer) throws IOException
{
Set typeDeclarations= getProject().getTypeDeclarationsWithAnnotations();
for (String typeDeclaration : typeDeclarations)
{
String[] key= typeDeclaration.split("#");
writer.write(String.format("dragomeJs.addTypeAnnotation(\"%s\", \"%s\", \"%s\", \"%s\");\n", key[0], key[1], key[2], key[3]));
}
}
public void processTainted()
{
while (unprocessedTaintedSignatures.size() > 0)
{
processSingle(popSignature());
if (unprocessedTaintedSignatures.size() == 0)
{
processOverWrittenMembers();
}
}
}
public void processSingle(Signature signature)
{
ClassUnit clazz= resolve(signature.className());
if (classpathFilter.accept(new File(signature.className().replace(".", "/"))))
{
String methodPart= signature.relativeSignature();
boolean found= false;
for (MemberUnit member : clazz.getMembers(methodPart))
{
taint(member);
found= true;
}
if (!found)
{
Log.getLogger().debug("No such method: " + signature);
// throw new RuntimeException("No such method: " + signature);
}
}
}
private ClassUnit resolve(String className)
{
ClassUnit clazz= project.getOrCreateClassUnit(className);
if (className.startsWith("["))
{
project.resolve(clazz);
}
else
{
project.resolve(clazz);
taint(className + "#()void");
}
resolvedTypes.add(clazz);
return clazz;
}
public ClassUnit resolveNoTainting(String className)
{
ClassUnit clazz= project.getOrCreateClassUnit(className);
if (className.startsWith("["))
{
project.resolve(clazz);
}
else
{
project.resolve(clazz);
}
resolvedTypes.add(clazz);
return clazz;
}
private void taintImplicitelyAccessedMembers(ClassUnit clazz)
{
for (MemberUnit member : clazz.getDeclaredMembers())
{
// for (int i= 0; i < patterns.length; i++)
{
// if (member.getAbsoluteSignature().toString().matches(patterns[i]))
{
taint(member.getAbsoluteSignature());
}
}
}
}
private void taintIfSuperTainted(ClassUnit clazz)
{
if (clazz.getName().equals("java.lang.Object"))
return;
for (MemberUnit member : clazz.getDeclaredMembers())
{
for (ClassUnit superType : clazz.getSupertypes())
{
Signature signature= Project.getSingleton().getSignature(superType.getName(), member.getSignature().toString());
//if (taintedSignatures.contains(signature))
{
taint(member);
}
}
}
}
private void taintTargetSignatures(ProcedureUnit method)
{
for (Signature targetSignature : method.getTargetSignatures())
{
taint(targetSignature);
}
}
private void processOverWrittenMembers()
{
Iterator classIterator= resolvedTypes.iterator();
while (classIterator.hasNext())
{
ClassUnit clazz= classIterator.next();
if (clazz.isConstructorTainted)
taintIfSuperTainted(clazz);
;
}
}
public void taint(String signature)
{
signature= signature.replaceAll("\\s", "");
Signature s= Project.getSingleton().getSignature(signature);
if (s.isClass())
{
ClassUnit clazz= resolve(s.className());
for (MemberUnit member : clazz.getDeclaredMembers())
{
taint(member.getAbsoluteSignature());
}
}
else
{
taint(s);
}
}
private Signature popSignature()
{
Iterator iter= unprocessedTaintedSignatures.iterator();
Signature signature= iter.next();
iter.remove();
return signature;
}
public void taint(Signature signature)
{
if (!signature.toString().contains("#"))
{
throw new IllegalArgumentException("Signature must be field or method: " + signature);
}
if (taintedSignatures.contains(signature))
return;
taintedSignatures.add(signature);
unprocessedTaintedSignatures.add(signature);
}
public void taint(MemberUnit member)
{
member.setTainted();
member.getDeclaringClass().setSuperTainted();
if (member instanceof ProcedureUnit)
{
taintTargetSignatures((ProcedureUnit) member);
if (member instanceof ConstructorUnit)
{
member.getDeclaringClass().isConstructorTainted= true;
taintImplicitelyAccessedMembers(member.getDeclaringClass());
}
}
}
public void setProject(Project project)
{
this.project= project;
}
public Project getProject()
{
return project;
}
public String getEntryPointClassName()
{
return entryPointClassName;
}
public Assembly setEntryPointClassName(String entryPointClassName)
{
this.entryPointClassName= entryPointClassName;
return this;
}
public File getTargetLocation()
{
return targetLocation;
}
public void setTargetLocation(File targetLocation)
{
this.targetLocation= targetLocation;
}
public void addEntryPoint(String memberSignature)
{
entryPoints.add(memberSignature);
}
public void setClasspathFilter(FileFilter classpathFilter)
{
this.classpathFilter= classpathFilter;
}
}