396 lines
14 KiB
Java
396 lines
14 KiB
Java
/*
|
|
* Copyright (C) 2012 Dominik Schürmann <dominik@dominikschuermann.de>
|
|
* Copyright (C) 2010-2011 K-9 Mail Contributors
|
|
*
|
|
* 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.thialfihar.android.apg.integration;
|
|
|
|
import android.app.Activity;
|
|
import android.content.ActivityNotFoundException;
|
|
import android.content.Intent;
|
|
import android.widget.Toast;
|
|
|
|
public class ApgIntentHelper {
|
|
|
|
public static final String APG_INTENT_PREFIX = "org.thialfihar.android.apg.intent.";
|
|
|
|
// Intents
|
|
/**
|
|
* Encrypt
|
|
*/
|
|
// without permission
|
|
public static final String ACTION_ENCRYPT = APG_INTENT_PREFIX + "ENCRYPT";
|
|
public static final String ACTION_ENCRYPT_FILE = APG_INTENT_PREFIX + "ENCRYPT_FILE";
|
|
|
|
// with permission
|
|
public static final String ACTION_ENCRYPT_AND_RETURN = APG_INTENT_PREFIX + "ENCRYPT_AND_RETURN";
|
|
public static final String ACTION_GENERATE_SIGNATURE_AND_RETURN = APG_INTENT_PREFIX
|
|
+ "GENERATE_SIGNATURE_AND_RETURN";
|
|
public static final String ACTION_ENCRYPT_STREAM_AND_RETURN = APG_INTENT_PREFIX
|
|
+ "ENCRYPT_STREAM_AND_RETURN";
|
|
|
|
/**
|
|
* Decrypt
|
|
*/
|
|
// without permission
|
|
public static final String ACTION_DECRYPT = APG_INTENT_PREFIX + "DECRYPT";
|
|
public static final String ACTION_DECRYPT_FILE = APG_INTENT_PREFIX + "DECRYPT_FILE";
|
|
|
|
// with permission
|
|
public static final String ACTION_DECRYPT_AND_RETURN = APG_INTENT_PREFIX + "DECRYPT_AND_RETURN";
|
|
public static final String ACTION_DECRYPT_STREAM_AND_RETURN = APG_INTENT_PREFIX
|
|
+ "DECRYPT_STREAM_AND_RETURN";
|
|
|
|
/**
|
|
* Select keys, without permission
|
|
*/
|
|
public static final String ACTION_SELECT_PUBLIC_KEYS = APG_INTENT_PREFIX + "SELECT_PUBLIC_KEYS";
|
|
public static final String ACTION_SELECT_SECRET_KEY = APG_INTENT_PREFIX + "SELECT_SECRET_KEY";
|
|
|
|
/**
|
|
* Create key/edit key, without permission
|
|
*/
|
|
public static final String ACTION_CREATE_KEY = APG_INTENT_PREFIX + "CREATE_KEY";
|
|
public static final String ACTION_EDIT_KEY = APG_INTENT_PREFIX + "EDIT_KEY";
|
|
|
|
/**
|
|
* Scan QR code, without permission
|
|
*/
|
|
public static final String ACTION_SCAN_QR_CODE = APG_INTENT_PREFIX + "SCAN_QR_CODE";
|
|
|
|
public static final String EXTRA_TEXT = "text";
|
|
public static final String EXTRA_DATA = "data";
|
|
public static final String EXTRA_ERROR = "error";
|
|
public static final String EXTRA_DECRYPTED_MESSAGE = "decryptedMessage";
|
|
public static final String EXTRA_ENCRYPTED_MESSAGE = "encryptedMessage";
|
|
public static final String EXTRA_SIGNATURE = "signature";
|
|
public static final String EXTRA_SIGNATURE_KEY_ID = "signatureKeyId";
|
|
public static final String EXTRA_SIGNATURE_USER_ID = "signatureUserId";
|
|
public static final String EXTRA_SIGNATURE_SUCCESS = "signatureSuccess";
|
|
public static final String EXTRA_SIGNATURE_UNKNOWN = "signatureUnknown";
|
|
public static final String EXTRA_USER_ID = "userId";
|
|
public static final String EXTRA_USER_IDS = "userIds";
|
|
public static final String EXTRA_KEY_ID = "masterKeyId";
|
|
public static final String EXTRA_ENCRYPTION_KEY_IDS = "encryptionKeyIds";
|
|
public static final String EXTRA_SELECTION = "selection";
|
|
public static final String EXTRA_MESSAGE = "message";
|
|
public static final String EXTRA_NO_PASSPHRASE = "noPassphrase";
|
|
public static final String EXTRA_GENERATE_DEFAULT_KEYS = "generateDefaultKeys";
|
|
public static final String EXTRA_INTENT_VERSION = "intentVersion";
|
|
|
|
public static final String RESULT_EXTRA_MASTER_KEY_IDS = "masterKeyIds";
|
|
public static final String RESULT_EXTRA_USER_IDS = "userIds";
|
|
|
|
// result from EditKey
|
|
public static final String RESULT_EXTRA_MASTER_KEY_ID = "masterKeyId";
|
|
public static final String RESULT_EXTRA_USER_ID = "userId";
|
|
|
|
public static final String INTENT_VERSION = "1";
|
|
|
|
public static final int DECRYPT_MESSAGE = 0x00007121;
|
|
public static final int ENCRYPT_MESSAGE = 0x00007122;
|
|
public static final int SELECT_PUBLIC_KEYS = 0x00007123;
|
|
public static final int SELECT_SECRET_KEY = 0x00007124;
|
|
public static final int CREATE_KEY = 0x00007125;
|
|
public static final int EDIT_KEY = 0x00007126;
|
|
|
|
private Activity activity;
|
|
|
|
public ApgIntentHelper(Activity activity) {
|
|
this.activity = activity;
|
|
}
|
|
|
|
/**
|
|
* Start an activity.<br>
|
|
* This method is defined to allow different methods of activity starting for newer versions of
|
|
* Android and for compatibility library.
|
|
*
|
|
* @param intent
|
|
* Intent to start.
|
|
* @param code
|
|
* Request code for the activity
|
|
* @see android.app.Activity#startActivityForResult(Intent, int)
|
|
* @see android.app.Fragment#startActivityForResult(Intent, int)
|
|
*/
|
|
protected void startActivityForResult(Intent intent, int code) {
|
|
activity.startActivityForResult(intent, code);
|
|
}
|
|
|
|
/**
|
|
* Open activity to scan qr code and import key in it
|
|
*
|
|
* @return true when activity was found and executed successfully
|
|
*/
|
|
public boolean scanQrCode() {
|
|
Intent intent = new Intent(ACTION_SCAN_QR_CODE);
|
|
intent.putExtra(EXTRA_INTENT_VERSION, INTENT_VERSION);
|
|
try {
|
|
startActivityForResult(intent, -1);
|
|
return true;
|
|
} catch (ActivityNotFoundException e) {
|
|
activityNotFound();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Opens APG activity to create new key
|
|
*
|
|
* @param userIds
|
|
* value to specify prefilled values for user that should be created
|
|
* @return true when activity was found and executed successfully
|
|
*/
|
|
public boolean createNewKey(String userIds, boolean noPassphrase, boolean generateDefaultKeys) {
|
|
Intent intent = new Intent(ACTION_CREATE_KEY);
|
|
if (userIds != null) {
|
|
intent.putExtra(EXTRA_USER_IDS, userIds);
|
|
}
|
|
intent.putExtra(EXTRA_NO_PASSPHRASE, noPassphrase);
|
|
intent.putExtra(EXTRA_GENERATE_DEFAULT_KEYS, generateDefaultKeys);
|
|
|
|
intent.putExtra(EXTRA_INTENT_VERSION, INTENT_VERSION);
|
|
try {
|
|
startActivityForResult(intent, CREATE_KEY);
|
|
return true;
|
|
} catch (ActivityNotFoundException e) {
|
|
activityNotFound();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Opens APG activity to create new key
|
|
*
|
|
* @return true when activity was found and executed successfully
|
|
*/
|
|
public boolean createNewKey() {
|
|
return createNewKey(null, false, false);
|
|
}
|
|
|
|
/**
|
|
* Opens APG activity to edit already existing key based on keyId
|
|
*
|
|
* @param keyId
|
|
* @return true when activity was found and executed successfully
|
|
*/
|
|
public boolean editKey(long keyId) {
|
|
Intent intent = new Intent(ACTION_EDIT_KEY);
|
|
intent.putExtra(EXTRA_KEY_ID, keyId);
|
|
intent.putExtra(EXTRA_INTENT_VERSION, INTENT_VERSION);
|
|
try {
|
|
startActivityForResult(intent, EDIT_KEY);
|
|
return true;
|
|
} catch (ActivityNotFoundException e) {
|
|
activityNotFound();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Opens APG activity to select the signature key.
|
|
*
|
|
* @return true when activity was found and executed successfully
|
|
*/
|
|
public boolean selectSecretKey() {
|
|
Intent intent = new Intent(ACTION_SELECT_SECRET_KEY);
|
|
intent.putExtra(EXTRA_INTENT_VERSION, INTENT_VERSION);
|
|
try {
|
|
startActivityForResult(intent, SELECT_SECRET_KEY);
|
|
return true;
|
|
} catch (ActivityNotFoundException e) {
|
|
activityNotFound();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Encrypts the given data by opening APGs encrypt activity. If encryptionKeys are given it
|
|
* encrypts immediately and goes back to your program after that
|
|
*
|
|
* @param data
|
|
* String that contains the message to be encrypted
|
|
* @param encryptionKeyIds
|
|
* long[] that holds the ids of the encryption keys
|
|
* @param signatureKeyId
|
|
* id of the signature key
|
|
* @return true when activity was found and executed successfully
|
|
*/
|
|
public boolean encrypt(String data, long[] encryptionKeyIds, long signatureKeyId,
|
|
boolean returnResult) {
|
|
Intent intent = new Intent();
|
|
if (returnResult) {
|
|
intent.setAction(ACTION_ENCRYPT_AND_RETURN);
|
|
} else {
|
|
intent.setAction(ACTION_ENCRYPT);
|
|
}
|
|
intent.putExtra(EXTRA_INTENT_VERSION, INTENT_VERSION);
|
|
intent.setType("text/plain");
|
|
intent.putExtra(EXTRA_TEXT, data);
|
|
intent.putExtra(EXTRA_ENCRYPTION_KEY_IDS, encryptionKeyIds);
|
|
intent.putExtra(EXTRA_SIGNATURE_KEY_ID, signatureKeyId);
|
|
try {
|
|
startActivityForResult(intent, ENCRYPT_MESSAGE);
|
|
return true;
|
|
} catch (ActivityNotFoundException e) {
|
|
activityNotFound();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Start the decrypt activity.
|
|
*
|
|
* @param activity
|
|
* @param data
|
|
* @param pgpData
|
|
* @return true when activity was found and executed successfully
|
|
*/
|
|
public boolean decrypt(String data, boolean returnResult) {
|
|
Intent intent = new Intent();
|
|
if (returnResult) {
|
|
intent.setAction(ACTION_DECRYPT_AND_RETURN);
|
|
} else {
|
|
intent.setAction(ACTION_DECRYPT);
|
|
}
|
|
intent.putExtra(EXTRA_INTENT_VERSION, INTENT_VERSION);
|
|
intent.setType("text/plain");
|
|
if (data == null) {
|
|
return false;
|
|
}
|
|
try {
|
|
intent.putExtra(EXTRA_TEXT, data);
|
|
startActivityForResult(intent, DECRYPT_MESSAGE);
|
|
return true;
|
|
} catch (ActivityNotFoundException e) {
|
|
activityNotFound();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Handle the activity results that concern us.
|
|
*
|
|
* @param requestCode
|
|
* @param resultCode
|
|
* @param data
|
|
* @return handled or not
|
|
*/
|
|
public boolean onActivityResult(int requestCode, int resultCode, Intent data, ApgData apgData) {
|
|
|
|
switch (requestCode) {
|
|
case CREATE_KEY:
|
|
if (resultCode != Activity.RESULT_OK || data == null) {
|
|
// user canceled!
|
|
break;
|
|
}
|
|
apgData.setSecretKeyId(data.getLongExtra(RESULT_EXTRA_MASTER_KEY_ID, 0));
|
|
apgData.setSecretKeyUserId(data.getStringExtra(RESULT_EXTRA_USER_ID));
|
|
|
|
break;
|
|
case SELECT_SECRET_KEY:
|
|
if (resultCode != Activity.RESULT_OK || data == null) {
|
|
// user canceled!
|
|
break;
|
|
}
|
|
apgData.setSecretKeyId(data.getLongExtra(EXTRA_KEY_ID, 0));
|
|
apgData.setSecretKeyUserId(data.getStringExtra(EXTRA_USER_ID));
|
|
|
|
break;
|
|
case SELECT_PUBLIC_KEYS:
|
|
if (resultCode != Activity.RESULT_OK || data == null) {
|
|
apgData.setPublicKeyIds(null);
|
|
break;
|
|
}
|
|
apgData.setPublicKeyIds(data.getLongArrayExtra(RESULT_EXTRA_MASTER_KEY_IDS));
|
|
apgData.setPublicUserIds(data.getStringArrayExtra(RESULT_EXTRA_USER_IDS));
|
|
|
|
break;
|
|
case ENCRYPT_MESSAGE:
|
|
if (resultCode != Activity.RESULT_OK || data == null) {
|
|
apgData.setPublicKeyIds(null);
|
|
break;
|
|
}
|
|
apgData.setEncryptedData(data.getStringExtra(EXTRA_ENCRYPTED_MESSAGE));
|
|
|
|
break;
|
|
case DECRYPT_MESSAGE:
|
|
if (resultCode != Activity.RESULT_OK || data == null) {
|
|
break;
|
|
}
|
|
|
|
apgData.setSecretKeyUserId(data.getStringExtra(EXTRA_SIGNATURE_USER_ID));
|
|
apgData.setSecretKeyId(data.getLongExtra(EXTRA_SIGNATURE_KEY_ID, 0));
|
|
apgData.setSignatureSuccess(data.getBooleanExtra(EXTRA_SIGNATURE_SUCCESS, false));
|
|
apgData.setSignatureUnknown(data.getBooleanExtra(EXTRA_SIGNATURE_UNKNOWN, false));
|
|
|
|
apgData.setDecryptedData(data.getStringExtra(EXTRA_DECRYPTED_MESSAGE));
|
|
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Select encryption keys.
|
|
*
|
|
* @param emails
|
|
* The emails that should be used for preselection.
|
|
* @return true when activity was found and executed successfully
|
|
*/
|
|
public boolean selectPublicKeys(String emails) {
|
|
return selectPublicKeys(emails, null);
|
|
}
|
|
|
|
/**
|
|
* Select encryption keys.
|
|
*
|
|
* @param emails
|
|
* The emails that should be used for preselection.
|
|
* @param apgData
|
|
* ApgData with encryption keys and signature keys preselected
|
|
* @return true when activity was found and executed successfully
|
|
*/
|
|
public boolean selectPublicKeys(String emails, ApgData apgData) {
|
|
Intent intent = new Intent(ACTION_SELECT_PUBLIC_KEYS);
|
|
intent.putExtra(EXTRA_INTENT_VERSION, INTENT_VERSION);
|
|
|
|
long[] initialKeyIds = null;
|
|
if (apgData == null || !apgData.hasPublicKeys()) {
|
|
ApgContentProviderHelper cPHelper = new ApgContentProviderHelper(activity);
|
|
|
|
initialKeyIds = cPHelper.getPublicKeyringIdsByEmail(emails);
|
|
} else {
|
|
initialKeyIds = apgData.getPublicKeys();
|
|
}
|
|
intent.putExtra(EXTRA_SELECTION, initialKeyIds);
|
|
|
|
try {
|
|
startActivityForResult(intent, SELECT_PUBLIC_KEYS);
|
|
return true;
|
|
} catch (ActivityNotFoundException e) {
|
|
activityNotFound();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
private void activityNotFound() {
|
|
Toast.makeText(activity, "APG Activity not found! Is APG installed correctly?",
|
|
Toast.LENGTH_LONG).show();
|
|
}
|
|
}
|