Better API demo, open activity from service, discover crypto provider with packagemanager instead of register intent

This commit is contained in:
Dominik Schürmann
2013-06-17 15:52:09 +02:00
parent f6fc6caa1c
commit 41338e115c
16 changed files with 916 additions and 313 deletions

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@@ -0,0 +1,20 @@
/*
* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openintents.crypto;
// Declare CryptoError so AIDL can find it and knows that it implements the parcelable protocol.
parcelable CryptoError;

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@@ -0,0 +1,76 @@
/*
* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openintents.crypto;
import android.os.Parcel;
import android.os.Parcelable;
public class CryptoError implements Parcelable {
int errorId;
String message;
public CryptoError() {
}
public CryptoError(int errorId, String message) {
this.errorId = errorId;
this.message = message;
}
public CryptoError(CryptoError b) {
this.errorId = b.errorId;
this.message = b.message;
}
public int getErrorId() {
return errorId;
}
public void setErrorId(int errorId) {
this.errorId = errorId;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(errorId);
dest.writeString(message);
}
public static final Creator<CryptoError> CREATOR = new Creator<CryptoError>() {
public CryptoError createFromParcel(final Parcel source) {
CryptoError error = new CryptoError();
error.errorId = source.readInt();
error.message = source.readString();
return error;
}
public CryptoError[] newArray(final int size) {
return new CryptoError[size];
}
};
}

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@@ -0,0 +1,91 @@
/*
* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openintents.crypto;
import org.openintents.crypto.ICryptoService;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.IBinder;
import android.util.Log;
public class CryptoServiceConnection {
private Context mApplicationContext;
private ICryptoService mService;
private boolean bound;
private String cryptoProviderPackageName;
private static final String TAG = "CryptoConnection";
public CryptoServiceConnection(Context context, String cryptoProviderPackageName) {
mApplicationContext = context.getApplicationContext();
this.cryptoProviderPackageName = cryptoProviderPackageName;
}
public ICryptoService getService() {
return mService;
}
private ServiceConnection mCryptoServiceConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName name, IBinder service) {
mService = ICryptoService.Stub.asInterface(service);
Log.d(TAG, "connected to service");
bound = true;
}
public void onServiceDisconnected(ComponentName name) {
mService = null;
Log.d(TAG, "disconnected from service");
bound = false;
}
};
/**
* If not already bound, bind!
*
* @return
*/
public boolean bindToService() {
if (mService == null && !bound) { // if not already connected
try {
Log.d(TAG, "not bound yet");
Intent serviceIntent = new Intent();
serviceIntent.setAction("org.openintents.crypto.ICryptoService");
serviceIntent.setPackage(cryptoProviderPackageName); // TODO: test
mApplicationContext.bindService(serviceIntent, mCryptoServiceConnection,
Context.BIND_AUTO_CREATE);
return true;
} catch (Exception e) {
Log.d(TAG, "Exception", e);
return false;
}
} else { // already connected
Log.d(TAG, "already bound... ");
return true;
}
}
public void unbindFromService() {
mApplicationContext.unbindService(mCryptoServiceConnection);
}
}

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@@ -0,0 +1,20 @@
/*
* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openintents.crypto;
// Declare CryptoSignatureResult so AIDL can find it and knows that it implements the parcelable protocol.
parcelable CryptoSignatureResult;

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@@ -0,0 +1,76 @@
/*
* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openintents.crypto;
import android.os.Parcel;
import android.os.Parcelable;
public class CryptoSignatureResult implements Parcelable {
String signatureUserId;
boolean signature;
boolean signatureSuccess;
boolean signatureUnknown;
public CryptoSignatureResult() {
}
public CryptoSignatureResult(String signatureUserId, boolean signature,
boolean signatureSuccess, boolean signatureUnknown) {
this.signatureUserId = signatureUserId;
this.signature = signature;
this.signatureSuccess = signatureSuccess;
this.signatureUnknown = signatureUnknown;
}
public CryptoSignatureResult(CryptoSignatureResult b) {
this.signatureUserId = b.signatureUserId;
this.signature = b.signature;
this.signatureSuccess = b.signatureSuccess;
this.signatureUnknown = b.signatureUnknown;
}
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(signatureUserId);
dest.writeByte((byte) (signature ? 1 : 0));
dest.writeByte((byte) (signatureSuccess ? 1 : 0));
dest.writeByte((byte) (signatureUnknown ? 1 : 0));
}
public static final Creator<CryptoSignatureResult> CREATOR = new Creator<CryptoSignatureResult>() {
public CryptoSignatureResult createFromParcel(final Parcel source) {
CryptoSignatureResult vr = new CryptoSignatureResult();
vr.signatureUserId = source.readString();
vr.signature = source.readByte() == 1;
vr.signatureSuccess = source.readByte() == 1;
vr.signatureUnknown = source.readByte() == 1;
return vr;
}
public CryptoSignatureResult[] newArray(final int size) {
return new CryptoSignatureResult[size];
}
};
}

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@@ -0,0 +1,30 @@
/*
* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openintents.crypto;
import org.openintents.crypto.CryptoSignatureResult;
import org.openintents.crypto.CryptoError;
interface ICryptoCallback {
oneway void onEncryptSignSuccess(in byte[] outputBytes);
oneway void onDecryptVerifySuccess(in byte[] outputBytes, in CryptoSignatureResult signatureResult);
oneway void onError(in CryptoError error);
}

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@@ -0,0 +1,76 @@
/*
* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openintents.crypto;
import org.openintents.crypto.ICryptoCallback;
/**
* All methods are oneway, which means they are asynchronous and non-blocking.
* Results are returned to the callback, which has to be implemented on client side.
*/
interface ICryptoService {
/**
* Encrypt
*
* @param inputBytes
* Byte array you want to encrypt
* @param encryptionUserIds
* User Ids (emails) of recipients
* @param callback
* Callback where to return results
*/
oneway void encrypt(in byte[] inputBytes, in String[] encryptionUserIds, in ICryptoCallback callback);
/**
* Encrypt and sign
*
* @param inputBytes
* Byte array you want to encrypt
* @param encryptionUserIds
* User Ids (emails) of recipients
* @param signatureUserId
* User Ids (email) of sender
* @param callback
* Callback where to return results
*/
oneway void encryptAndSign(in byte[] inputBytes, in String[] encryptionUserIds, String signatureUserId, in ICryptoCallback callback);
/**
* Sign
*
* @param inputBytes
* Byte array you want to encrypt
* @param signatureUserId
* User Ids (email) of sender
* @param callback
* Callback where to return results
*/
oneway void sign(in byte[] inputBytes, String signatureUserId, in ICryptoCallback callback);
/**
* Decrypts and verifies given input bytes. If no signature is present this method
* will only decrypt.
*
* @param inputBytes
* Byte array you want to decrypt and verify
* @param callback
* Callback where to return results
*/
oneway void decryptAndVerify(in byte[] inputBytes, in ICryptoCallback callback);
}

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@@ -1,5 +1,5 @@
/*
* Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -16,30 +16,30 @@
package org.sufficientlysecure.keychain.demo;
import java.util.ArrayList;
import java.util.List;
import org.openintents.crypto.CryptoError;
import org.openintents.crypto.CryptoServiceConnection;
import org.openintents.crypto.CryptoSignatureResult;
import org.openintents.crypto.ICryptoCallback;
import org.sufficientlysecure.keychain.demo.R;
import org.sufficientlysecure.keychain.integration.Constants;
import org.sufficientlysecure.keychain.integration.KeychainData;
import org.sufficientlysecure.keychain.integration.KeychainIntentHelper;
import org.sufficientlysecure.keychain.service.IKeychainApiService;
import org.sufficientlysecure.keychain.service.IKeychainKeyService;
import org.sufficientlysecure.keychain.service.handler.IKeychainDecryptHandler;
import org.sufficientlysecure.keychain.service.handler.IKeychainEncryptHandler;
import org.sufficientlysecure.keychain.service.handler.IKeychainGetDecryptionKeyIdHandler;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.pm.ResolveInfo;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.TextView;
import android.widget.Toast;
public class CryptoProviderDemoActivity extends Activity {
Activity mActivity;
@@ -48,19 +48,9 @@ public class CryptoProviderDemoActivity extends Activity {
TextView mCiphertextTextView;
TextView mDataTextView;
KeychainIntentHelper mKeychainIntentHelper;
KeychainData mKeychainData;
private CryptoServiceConnection mCryptoServiceConnection;
private IKeychainApiService service = null;
private ServiceConnection svcConn = new ServiceConnection() {
public void onServiceConnected(ComponentName className, IBinder binder) {
service = IKeychainApiService.Stub.asInterface(binder);
}
public void onServiceDisconnected(ComponentName className) {
service = null;
}
};
private static final String CRYPTO_SERVICE_INTENT = "org.openintents.crypto.ICryptoService";
@Override
public void onCreate(Bundle icicle) {
@@ -69,55 +59,49 @@ public class CryptoProviderDemoActivity extends Activity {
mActivity = this;
mMessageTextView = (TextView) findViewById(R.id.aidl_demo_message);
mCiphertextTextView = (TextView) findViewById(R.id.aidl_demo_ciphertext);
mMessageTextView = (TextView) findViewById(R.id.crypto_provider_demo_message);
mCiphertextTextView = (TextView) findViewById(R.id.crypto_provider_demo_ciphertext);
mDataTextView = (TextView) findViewById(R.id.aidl_demo_data);
mKeychainIntentHelper = new KeychainIntentHelper(mActivity);
mKeychainData = new KeychainData();
bindService(new Intent(IKeychainApiService.class.getName()), svcConn,
Context.BIND_AUTO_CREATE);
selectCryptoProvider();
}
public void registerCryptoProvider(View view) {
try {
startActivityForResult(Intent.createChooser(new Intent("com.android.crypto.REGISTER"),
"select crypto provider"), 123);
} catch (ActivityNotFoundException e) {
Toast.makeText(mActivity, "No app that handles com.android.crypto.REGISTER!",
Toast.LENGTH_LONG).show();
Log.e(Constants.TAG, "No app that handles com.android.crypto.REGISTER!");
}
}
/**
* Callback from remote crypto service
*/
final ICryptoCallback.Stub callback = new ICryptoCallback.Stub() {
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 123) {
if (resultCode == RESULT_OK) {
String packageName = data.getStringExtra("packageName");
Log.d(Constants.TAG, "packageName: " + packageName);
}
@Override
public void onEncryptSignSuccess(byte[] outputBytes) throws RemoteException {
// not needed here
}
// boolean result = mKeychainIntentHelper.onActivityResult(requestCode, resultCode, data,
// mKeychainData);
// if (result) {
// updateView();
// }
@Override
public void onDecryptVerifySuccess(byte[] outputBytes, CryptoSignatureResult signatureResult)
throws RemoteException {
Log.d(Constants.TAG, "onDecryptVerifySuccess");
// continue with other activity results
super.onActivityResult(requestCode, resultCode, data);
}
// PgpData data = new PgpData();
// data.setDecryptedData(new String(outputBytes));
// mFragment.setMessageWithPgpData(data);
}
@Override
public void onError(CryptoError error) throws RemoteException {
Log.e(Constants.TAG, "onError getErrorId:" + error.getErrorId());
Log.e(Constants.TAG, "onError getErrorId:" + error.getMessage());
}
};
public void encryptOnClick(View view) {
byte[] inputBytes = mMessageTextView.getText().toString().getBytes();
try {
service.encryptAsymmetric(inputBytes, null, true, 0, mKeychainData.getPublicKeys(), 7,
encryptHandler);
mCryptoServiceConnection.getService().encrypt(inputBytes,
new String[] { "dominik@dominikschuermann.de" }, callback);
} catch (RemoteException e) {
exceptionImplementation(-1, e.toString());
Log.e(Constants.TAG, "CryptoProviderDemo", e);
}
}
@@ -125,114 +109,109 @@ public class CryptoProviderDemoActivity extends Activity {
byte[] inputBytes = mCiphertextTextView.getText().toString().getBytes();
try {
service.decryptAndVerifyAsymmetric(inputBytes, null, null, decryptHandler);
mCryptoServiceConnection.getService().decryptAndVerify(inputBytes, callback);
} catch (RemoteException e) {
exceptionImplementation(-1, e.toString());
Log.e(Constants.TAG, "CryptoProviderDemo", e);
}
}
private void updateView() {
if (mKeychainData.getDecryptedData() != null) {
mMessageTextView.setText(mKeychainData.getDecryptedData());
}
if (mKeychainData.getEncryptedData() != null) {
mCiphertextTextView.setText(mKeychainData.getEncryptedData());
}
mDataTextView.setText(mKeychainData.toString());
}
@Override
public void onDestroy() {
super.onDestroy();
unbindService(svcConn);
if (mCryptoServiceConnection != null) {
mCryptoServiceConnection.unbindFromService();
}
}
private void exceptionImplementation(int exceptionId, String error) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Exception!").setMessage(error).setPositiveButton("OK", null).show();
private static class CryptoProviderElement {
private String packageName;
private String simpleName;
private Drawable icon;
public CryptoProviderElement(String packageName, String simpleName, Drawable icon) {
this.packageName = packageName;
this.simpleName = simpleName;
this.icon = icon;
}
@Override
public String toString() {
return simpleName;
}
}
private final IKeychainEncryptHandler.Stub encryptHandler = new IKeychainEncryptHandler.Stub() {
private void selectCryptoProvider() {
Intent intent = new Intent(CRYPTO_SERVICE_INTENT);
@Override
public void onException(final int exceptionId, final String message) throws RemoteException {
runOnUiThread(new Runnable() {
public void run() {
exceptionImplementation(exceptionId, message);
}
});
}
final ArrayList<CryptoProviderElement> providerList = new ArrayList<CryptoProviderElement>();
@Override
public void onSuccess(final byte[] outputBytes, String outputUri) throws RemoteException {
runOnUiThread(new Runnable() {
public void run() {
mKeychainData.setEncryptedData(new String(outputBytes));
updateView();
}
});
}
List<ResolveInfo> resInfo = getPackageManager().queryIntentServices(intent, 0);
if (!resInfo.isEmpty()) {
for (ResolveInfo resolveInfo : resInfo) {
if (resolveInfo.serviceInfo == null)
continue;
};
String packageName = resolveInfo.serviceInfo.packageName;
String simpleName = String.valueOf(resolveInfo.serviceInfo
.loadLabel(getPackageManager()));
Drawable icon = resolveInfo.serviceInfo.loadIcon(getPackageManager());
providerList.add(new CryptoProviderElement(packageName, simpleName, icon));
}
private final IKeychainDecryptHandler.Stub decryptHandler = new IKeychainDecryptHandler.Stub() {
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("Select Crypto Provider!");
alert.setCancelable(false);
@Override
public void onException(final int exceptionId, final String message) throws RemoteException {
runOnUiThread(new Runnable() {
public void run() {
exceptionImplementation(exceptionId, message);
}
});
}
if (!providerList.isEmpty()) {
@Override
public void onSuccess(final byte[] outputBytes, String outputUri, boolean signature,
long signatureKeyId, String signatureUserId, boolean signatureSuccess,
boolean signatureUnknown) throws RemoteException {
runOnUiThread(new Runnable() {
public void run() {
mKeychainData.setDecryptedData(new String(outputBytes));
updateView();
// Init ArrayAdapter with Crypto Providers
ListAdapter adapter = new ArrayAdapter<CryptoProviderElement>(this,
android.R.layout.select_dialog_item, android.R.id.text1, providerList) {
public View getView(int position, View convertView, ViewGroup parent) {
// User super class to create the View
View v = super.getView(position, convertView, parent);
TextView tv = (TextView) v.findViewById(android.R.id.text1);
// Put the image on the TextView
tv.setCompoundDrawablesWithIntrinsicBounds(providerList.get(position).icon,
null, null, null);
// Add margin between image and text (support various screen densities)
int dp5 = (int) (5 * getResources().getDisplayMetrics().density + 0.5f);
tv.setCompoundDrawablePadding(dp5);
return v;
}
};
alert.setSingleChoiceItems(adapter, -1, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int position) {
String packageName = providerList.get(position).packageName;
// bind to service
mCryptoServiceConnection = new CryptoServiceConnection(
CryptoProviderDemoActivity.this, packageName);
mCryptoServiceConnection.bindToService();
dialog.dismiss();
}
});
} else {
alert.setMessage("No Crypto Provider installed!");
}
alert.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
finish();
}
});
AlertDialog ad = alert.create();
ad.show();
}
};
private final IKeychainGetDecryptionKeyIdHandler.Stub helperHandler = new IKeychainGetDecryptionKeyIdHandler.Stub() {
@Override
public void onException(final int exceptionId, final String message) throws RemoteException {
runOnUiThread(new Runnable() {
public void run() {
exceptionImplementation(exceptionId, message);
}
});
}
@Override
public void onSuccess(long arg0, boolean arg1) throws RemoteException {
// TODO Auto-generated method stub
}
};
/**
* Selection is done with Intents, not AIDL!
*
* @param view
*/
public void selectSecretKeyOnClick(View view) {
mKeychainIntentHelper.selectSecretKey();
}
public void selectEncryptionKeysOnClick(View view) {
mKeychainIntentHelper.selectPublicKeys("user@example.com");
}
}