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package org.thialfihar.android.apg;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Iterator;
import android.content.Intent;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
public class ApgService extends Service {
static String TAG = "ApgService";
@Override
public IBinder onBind(Intent intent) {
Log.d(TAG, "bound");
return mBinder;
}
private enum error {
ARGUMENTS_MISSING,
APG_FAILURE
}
private final IApgService.Stub mBinder = new IApgService.Stub() {
public boolean encrypt_with_passphrase(Bundle pArgs, Bundle pReturn) {
ArrayList<String> errors = new ArrayList<String>();
ArrayList<String> warnings = new ArrayList<String>();
pReturn.putStringArrayList("ERRORS", errors);
pReturn.putStringArrayList("WARNINGS", warnings);
String msg = pArgs.getString("MSG");
pArgs.remove("MSG");
String passphrase = pArgs.getString("SYM_KEY");
pArgs.remove("SYM_KEY");
if (msg == null) {
errors.add("Message to encrypt (MSG) missing");
}
if (passphrase == null) {
errors.add("Symmetric key (SYM_KEY) missing");
}
if (!pArgs.isEmpty()) {
Iterator<String> _iter = pArgs.keySet().iterator();
while (_iter.hasNext()) {
warnings.add("Unknown key: " + _iter.next());
}
}
if (errors.size() != 0) {
pReturn.putInt("ERROR", error.ARGUMENTS_MISSING.ordinal());
return false;
}
Preferences _mPreferences = Preferences.getPreferences(getBaseContext(), true);
InputStream _inStream = new ByteArrayInputStream(msg.getBytes());
InputData _in = new InputData(_inStream, 9999);
OutputStream _out = new ByteArrayOutputStream();
long _enc_keys[] = {};
Apg.initialize(getApplicationContext());
try {
Apg.encrypt(getApplicationContext(), // context
_in, // input stream
_out, // output stream
true, // armored
_enc_keys, // encryption keys
0, // signature key
null, // signature passphrase
null, // progress
_mPreferences.getDefaultEncryptionAlgorithm(), // encryption
_mPreferences.getDefaultHashAlgorithm(), // hash
Id.choice.compression.none, // compression
false, // mPreferences.getForceV3Signatures(),
passphrase // passPhrase
);
} catch (Exception e) {
Log.d(TAG, "Exception in encrypt");
errors.add("Internal failure in APG when encrypting: " + e.getMessage());
pReturn.putInt("ERROR", error.APG_FAILURE.ordinal());
return false;
}
Log.d(TAG, "Encrypted");
pReturn.putString("RESULT", _out.toString());
return true;
}
public boolean decrypt_with_passphrase(Bundle pArgs, Bundle pReturn) {
ArrayList<String> errors = new ArrayList<String>();
ArrayList<String> warnings = new ArrayList<String>();
pReturn.putStringArrayList("ERRORS", errors);
pReturn.putStringArrayList("WARNINGS", warnings);
String encrypted_msg = pArgs.getString("MSG");
pArgs.remove("MSG");
String passphrase = pArgs.getString("SYM_KEY");
pArgs.remove("SYM_KEY");
if (encrypted_msg == null) {
errors.add("Message to decrypt (MSG) missing");
}
if (passphrase == null) {
errors.add("Symmetric key (SYM_KEY) missing");
}
if (!pArgs.isEmpty()) {
Iterator<String> iter = pArgs.keySet().iterator();
while (iter.hasNext()) {
warnings.add("Unknown key: " + iter.next());
}
}
if (errors.size() != 0) {
pReturn.putStringArrayList("ERROR", errors);
pReturn.putInt("ERROR", error.ARGUMENTS_MISSING.ordinal());
return false;
}
InputStream inStream = new ByteArrayInputStream(encrypted_msg.getBytes());
InputData in = new InputData(inStream, 9999); // XXX what size in
// second parameter?
OutputStream out = new ByteArrayOutputStream();
try {
Apg.decrypt(getApplicationContext(), in, out, passphrase, null, // progress
true // symmetric
);
} catch (Exception e) {
Log.d(TAG, "Exception in decrypt");
errors.add("Internal failure in APG when decrypting: " + e.getMessage());
pReturn.putInt("ERROR", error.APG_FAILURE.ordinal());
pReturn.putStringArrayList("ERROR", errors);
return false;
}
pReturn.putString("RESULT", out.toString());
return true;
}
};
}
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