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Code Issues Releases Wiki Activity

Respect options but allow to overwrite them for each call

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By default the values set in APG's options are respected now. But they
can be overwritten by special parameters passed through.
This commit is contained in:
Markus Doits 2011-01-09 19:16:45 +00:00
parent 9e089f03b6
commit c84c449035
1 changed files with 84 additions and 15 deletions
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99
src/org/thialfihar/android/apg/ApgService.java
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@ -5,6 +5,7 @@ import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import android.content.Intent;
@ -13,7 +14,7 @@ import android.os.IBinder;
import android.util.Log;
public class ApgService extends Service {
static String TAG = "ApgService";
final static String TAG = "ApgService";
@Override
public IBinder onBind(Intent intent) {
@ -26,21 +27,89 @@ public class ApgService extends Service {
APG_FAILURE
}
/** a map from ApgService parameters to function calls to get the default */
static final HashMap<String, String> FUNCTIONS_DEFAULTS = new HashMap<String, String>();
static {
FUNCTIONS_DEFAULTS.put("ENCRYPTION_ALGO", "getDefaultEncryptionAlgorithm");
FUNCTIONS_DEFAULTS.put("HASH_ALGO", "getDefaultHashAlgorithm");
FUNCTIONS_DEFAULTS.put("ARMORED", "getDefaultAsciiArmour");
FUNCTIONS_DEFAULTS.put("FORCE_V3_SIG", "getForceV3Signatures");
FUNCTIONS_DEFAULTS.put("COMPRESSION", "getDefaultMessageCompression");
}
/**
* Add default arguments if missing
*
* @param args
* the bundle to add default parameters to if missing
*
*/
private void add_defaults(Bundle args) {
Preferences _mPreferences = Preferences.getPreferences(getBaseContext(), true);
Iterator<String> _iter = FUNCTIONS_DEFAULTS.keySet().iterator();
while (_iter.hasNext()) {
String _current_key = _iter.next();
if (!args.containsKey(_current_key)) {
String _current_function_name = FUNCTIONS_DEFAULTS.get(_current_key);
try {
@SuppressWarnings("unchecked")
Class _ret_type = Preferences.class.getMethod(_current_function_name).getReturnType();
if (_ret_type == String.class) {
args.putString(_current_key, (String) Preferences.class.getMethod(_current_function_name).invoke(_mPreferences));
} else if (_ret_type == boolean.class) {
args.putBoolean(_current_key, (Boolean) Preferences.class.getMethod(_current_function_name).invoke(_mPreferences));
} else if (_ret_type == int.class) {
args.putInt(_current_key, (Integer) Preferences.class.getMethod(_current_function_name).invoke(_mPreferences));
} else {
Log.e(TAG, "Unknown return type " + _ret_type.toString() + " for default option");
}
} catch (Exception e) {
Log.e(TAG, "Exception in add_defaults " + e.getMessage());
}
}
}
}
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");
Bundle _my_args = new Bundle(pArgs);
String passphrase = pArgs.getString("SYM_KEY");
pArgs.remove("SYM_KEY");
/* add default values if missing */
add_defaults(_my_args);
/* required args */
String msg = _my_args.getString("MSG");
_my_args.remove("MSG");
String passphrase = _my_args.getString("SYM_KEY");
_my_args.remove("SYM_KEY");
/* optional args */
Boolean armored = _my_args.getBoolean("ARMORED");
_my_args.remove("ARMORED");
int encryption_algorithm = _my_args.getInt("ENCRYPTION_ALGO");
_my_args.remove("ENCRYPTION_ALGO");
int hash_algorithm = _my_args.getInt("HASH_ALGO");
_my_args.remove("HASH_ALGO");
int compression = _my_args.getInt("COMPRESSION");
_my_args.remove("COMPRESSION");
Boolean force_v3_signatures = _my_args.getBoolean("FORCE_V3_SIG");
_my_args.remove("FORCE_V3_SIG");
/* check required args */
if (msg == null) {
errors.add("Message to encrypt (MSG) missing");
}
@ -49,38 +118,38 @@ public class ApgService extends Service {
errors.add("Symmetric key (SYM_KEY) missing");
}
if (!pArgs.isEmpty()) {
Iterator<String> _iter = pArgs.keySet().iterator();
/* check for unknown args and add to warning */
if (!_my_args.isEmpty()) {
Iterator<String> _iter = _my_args.keySet().iterator();
while (_iter.hasNext()) {
warnings.add("Unknown key: " + _iter.next());
}
}
/* return if errors happened */
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
armored, // armored
new long[0], // encryption keys
0, // signature key
null, // signature passphrase
null, // progress
_mPreferences.getDefaultEncryptionAlgorithm(), // encryption
_mPreferences.getDefaultHashAlgorithm(), // hash
Id.choice.compression.none, // compression
false, // mPreferences.getForceV3Signatures(),
encryption_algorithm, // encryption
hash_algorithm, // hash
compression, // compression
force_v3_signatures, // mPreferences.getForceV3Signatures(),
passphrase // passPhrase
);
} catch (Exception e) {