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package org.jf.smali;
import com.google.common.collect.Lists;
import org.antlr.runtime.CommonTokenStream;
import org.antlr.runtime.Token;
import org.antlr.runtime.TokenSource;
import org.antlr.runtime.tree.CommonTree;
import org.antlr.runtime.tree.CommonTreeNodeStream;
import org.jf.dexlib2.Opcodes;
import org.jf.dexlib2.writer.builder.DexBuilder;
import org.jf.dexlib2.writer.io.FileDataStore;
import javax.annotation.Nonnull;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.*;
public class Smali {
/**
* Assemble the specified files, using the given options
*
* @param options a SmaliOptions object with the options to run smali with
* @param input The files/directories to process
* @return true if assembly completed with no errors, or false if errors were encountered
*/
public static boolean assemble(final SmaliOptions options, String... input) throws IOException {
return assemble(options, Arrays.asList(input));
}
/**
* Assemble the specified files, using the given options
*
* @param options a SmaliOptions object with the options to run smali with
* @param input The files/directories to process
* @return true if assembly completed with no errors, or false if errors were encountered
*/
public static boolean assemble(final SmaliOptions options, List<String> input) throws IOException {
LinkedHashSet<File> filesToProcessSet = new LinkedHashSet<File>();
for (String fileToProcess: input) {
File argFile = new File(fileToProcess);
if (!argFile.exists()) {
throw new IllegalArgumentException("Cannot find file or directory \"" + fileToProcess + "\"");
}
if (argFile.isDirectory()) {
getSmaliFilesInDir(argFile, filesToProcessSet);
} else if (argFile.isFile()) {
filesToProcessSet.add(argFile);
}
}
boolean errors = false;
final DexBuilder dexBuilder = new DexBuilder(Opcodes.forApi(options.apiLevel));
ExecutorService executor = Executors.newFixedThreadPool(options.jobs);
List<Future<Boolean>> tasks = Lists.newArrayList();
for (final File file: filesToProcessSet) {
tasks.add(executor.submit(new Callable<Boolean>() {
@Override public Boolean call() throws Exception {
return assembleSmaliFile(file, dexBuilder, options);
}
}));
}
for (Future<Boolean> task: tasks) {
while(true) {
try {
try {
if (!task.get()) {
errors = true;
}
} catch (ExecutionException ex) {
throw new RuntimeException(ex);
}
} catch (InterruptedException ex) {
continue;
}
break;
}
}
executor.shutdown();
if (errors) {
return false;
}
dexBuilder.writeTo(new FileDataStore(new File(options.outputDexFile)));
return true;
}
private static void getSmaliFilesInDir(@Nonnull File dir, @Nonnull Set<File> smaliFiles) {
File[] files = dir.listFiles();
if (files != null) {
for(File file: files) {
if (file.isDirectory()) {
getSmaliFilesInDir(file, smaliFiles);
} else if (file.getName().endsWith(".smali")) {
smaliFiles.add(file);
}
}
}
}
private static boolean assembleSmaliFile(File smaliFile, DexBuilder dexBuilder, SmaliOptions options)
throws Exception {
FileInputStream fis = null;
try {
fis = new FileInputStream(smaliFile);
InputStreamReader reader = new InputStreamReader(fis, "UTF-8");
LexerErrorInterface lexer = new smaliFlexLexer(reader);
((smaliFlexLexer)lexer).setSourceFile(smaliFile);
CommonTokenStream tokens = new CommonTokenStream((TokenSource)lexer);
if (options.printTokens) {
tokens.getTokens();
for (int i=0; i<tokens.size(); i++) {
Token token = tokens.get(i);
if (token.getChannel() == smaliParser.HIDDEN) {
continue;
}
System.out.println(smaliParser.tokenNames[token.getType()] + ": " + token.getText());
}
System.out.flush();
}
smaliParser parser = new smaliParser(tokens);
parser.setVerboseErrors(options.verboseErrors);
parser.setAllowOdex(options.allowOdexOpcodes);
parser.setApiLevel(options.apiLevel);
smaliParser.smali_file_return result = parser.smali_file();
if (parser.getNumberOfSyntaxErrors() > 0 || lexer.getNumberOfSyntaxErrors() > 0) {
return false;
}
CommonTree t = result.getTree();
CommonTreeNodeStream treeStream = new CommonTreeNodeStream(t);
treeStream.setTokenStream(tokens);
if (options.printTokens) {
System.out.println(t.toStringTree());
}
smaliTreeWalker dexGen = new smaliTreeWalker(treeStream);
dexGen.setApiLevel(options.apiLevel);
dexGen.setVerboseErrors(options.verboseErrors);
dexGen.setDexBuilder(dexBuilder);
dexGen.smali_file();
return dexGen.getNumberOfSyntaxErrors() == 0;
} finally {
if (fis != null) {
fis.close();
}
}
}
}