1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
|
/*
* Copyright (C) 2013-2014 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.sufficientlysecure.keychain.demo;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.Intent;
import android.content.IntentSender;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import org.openintents.openpgp.OpenPgpError;
import org.openintents.openpgp.util.OpenPgpApi;
import org.openintents.openpgp.util.OpenPgpConstants;
import org.openintents.openpgp.util.OpenPgpServiceConnection;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
public class OpenPgpProviderActivity extends Activity {
EditText mMessage;
EditText mCiphertext;
EditText mEncryptUserIds;
Button mSign;
Button mEncrypt;
Button mSignAndEncrypt;
Button mDecryptAndVerify;
OpenPgpServiceConnection mServiceConnection;
public static final int REQUEST_CODE_SIGN = 9910;
public static final int REQUEST_CODE_ENCRYPT = 9911;
public static final int REQUEST_CODE_SIGN_AND_ENCRYPT = 9912;
public static final int REQUEST_CODE_DECRYPT_AND_VERIFY = 9913;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.openpgp_provider);
mMessage = (EditText) findViewById(R.id.crypto_provider_demo_message);
mCiphertext = (EditText) findViewById(R.id.crypto_provider_demo_ciphertext);
mEncryptUserIds = (EditText) findViewById(R.id.crypto_provider_demo_encrypt_user_id);
mSign = (Button) findViewById(R.id.crypto_provider_demo_sign);
mEncrypt = (Button) findViewById(R.id.crypto_provider_demo_encrypt);
mSignAndEncrypt = (Button) findViewById(R.id.crypto_provider_demo_sign_and_encrypt);
mDecryptAndVerify = (Button) findViewById(R.id.crypto_provider_demo_decrypt_and_verify);
mSign.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
sign(new Bundle());
}
});
mEncrypt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
encrypt(new Bundle());
}
});
mSignAndEncrypt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
signAndEncrypt(new Bundle());
}
});
mDecryptAndVerify.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
decryptAndVerify(new Bundle());
}
});
SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this);
String providerPackageName = settings.getString("openpgp_provider_list", "");
if (TextUtils.isEmpty(providerPackageName)) {
Toast.makeText(this, "No OpenPGP Provider selected!", Toast.LENGTH_LONG).show();
finish();
} else {
// bind to service
mServiceConnection = new OpenPgpServiceConnection(
OpenPgpProviderActivity.this, providerPackageName);
mServiceConnection.bindToService();
}
}
private void handleError(final OpenPgpError error) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(OpenPgpProviderActivity.this,
"onError id:" + error.getErrorId() + "\n\n" + error.getMessage(),
Toast.LENGTH_LONG).show();
Log.e(Constants.TAG, "onError getErrorId:" + error.getErrorId());
Log.e(Constants.TAG, "onError getMessage:" + error.getMessage());
}
});
}
/**
* Takes input from message or ciphertext EditText and turns it into a ByteArrayInputStream
*
* @param ciphertext
* @return
*/
private InputStream getInputstream(boolean ciphertext) {
InputStream is = null;
try {
String inputStr = null;
if (ciphertext) {
inputStr = mCiphertext.getText().toString();
} else {
inputStr = mMessage.getText().toString();
}
is = new ByteArrayInputStream(inputStr.getBytes("UTF-8"));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return is;
}
private class MyCallback implements OpenPgpApi.IOpenPgpCallback {
boolean returnToCiphertextField;
ByteArrayOutputStream os;
int requestCode;
private MyCallback(boolean returnToCiphertextField, ByteArrayOutputStream os, int requestCode) {
this.returnToCiphertextField = returnToCiphertextField;
this.os = os;
this.requestCode = requestCode;
}
@Override
public void onReturn(Bundle result) {
switch (result.getInt(OpenPgpConstants.RESULT_CODE)) {
case OpenPgpConstants.RESULT_CODE_SUCCESS: {
try {
Log.d(OpenPgpConstants.TAG, "result: " + os.toByteArray().length
+ " str=" + os.toString("UTF-8"));
if (returnToCiphertextField) {
mCiphertext.setText(os.toString("UTF-8"));
} else {
mMessage.setText(os.toString("UTF-8"));
}
} catch (UnsupportedEncodingException e) {
Log.e(Constants.TAG, "UnsupportedEncodingException", e);
}
break;
}
case OpenPgpConstants.RESULT_CODE_USER_INTERACTION_REQUIRED: {
PendingIntent pi = result.getParcelable(OpenPgpConstants.RESULT_INTENT);
try {
OpenPgpProviderActivity.this.startIntentSenderForResult(pi.getIntentSender(),
requestCode, null, 0, 0, 0);
} catch (IntentSender.SendIntentException e) {
Log.e(Constants.TAG, "SendIntentException", e);
}
break;
}
case OpenPgpConstants.RESULT_CODE_ERROR: {
OpenPgpError error = result.getParcelable(OpenPgpConstants.RESULT_ERRORS);
handleError(error);
break;
}
}
}
}
public void sign(Bundle params) {
params.putBoolean(OpenPgpConstants.PARAMS_REQUEST_ASCII_ARMOR, true);
InputStream is = getInputstream(false);
final ByteArrayOutputStream os = new ByteArrayOutputStream();
OpenPgpApi api = new OpenPgpApi(this, mServiceConnection.getService());
api.sign(params, is, os, new MyCallback(true, os, REQUEST_CODE_SIGN));
}
public void encrypt(Bundle params) {
params.putStringArray(OpenPgpConstants.PARAMS_USER_IDS, mEncryptUserIds.getText().toString().split(","));
params.putBoolean(OpenPgpConstants.PARAMS_REQUEST_ASCII_ARMOR, true);
InputStream is = getInputstream(false);
final ByteArrayOutputStream os = new ByteArrayOutputStream();
OpenPgpApi api = new OpenPgpApi(this, mServiceConnection.getService());
api.encrypt(params, is, os, new MyCallback(true, os, REQUEST_CODE_ENCRYPT));
}
public void signAndEncrypt(Bundle params) {
params.putStringArray(OpenPgpConstants.PARAMS_USER_IDS, mEncryptUserIds.getText().toString().split(","));
params.putBoolean(OpenPgpConstants.PARAMS_REQUEST_ASCII_ARMOR, true);
InputStream is = getInputstream(false);
final ByteArrayOutputStream os = new ByteArrayOutputStream();
OpenPgpApi api = new OpenPgpApi(this, mServiceConnection.getService());
api.signAndEncrypt(params, is, os, new MyCallback(true, os, REQUEST_CODE_SIGN_AND_ENCRYPT));
}
public void decryptAndVerify(Bundle params) {
params.putBoolean(OpenPgpConstants.PARAMS_REQUEST_ASCII_ARMOR, true);
InputStream is = getInputstream(true);
final ByteArrayOutputStream os = new ByteArrayOutputStream();
OpenPgpApi api = new OpenPgpApi(this, mServiceConnection.getService());
api.decryptAndVerify(params, is, os, new MyCallback(true, os, REQUEST_CODE_DECRYPT_AND_VERIFY));
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Log.d(Constants.TAG, "onActivityResult resultCode: " + resultCode);
// try again after user interaction
if (resultCode == RESULT_OK) {
Bundle params = data.getBundleExtra(OpenPgpConstants.PI_RESULT_PARAMS);
switch (requestCode) {
case REQUEST_CODE_SIGN: {
sign(params);
break;
}
case REQUEST_CODE_ENCRYPT: {
encrypt(params);
break;
}
case REQUEST_CODE_SIGN_AND_ENCRYPT: {
signAndEncrypt(params);
break;
}
case REQUEST_CODE_DECRYPT_AND_VERIFY: {
decryptAndVerify(params);
break;
}
}
}
}
@Override
public void onDestroy() {
super.onDestroy();
if (mServiceConnection != null) {
mServiceConnection.unbindFromService();
}
}
}
|