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
|
package com.zeapo.pwdstore.autofill;
import android.accessibilityservice.AccessibilityService;
import android.app.PendingIntent;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v7.app.AlertDialog;
import android.util.Log;
import android.view.WindowManager;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityNodeInfo;
import android.widget.Toast;
import com.zeapo.pwdstore.R;
import com.zeapo.pwdstore.UserPreference;
import com.zeapo.pwdstore.utils.PasswordItem;
import com.zeapo.pwdstore.utils.PasswordRepository;
import org.apache.commons.io.FileUtils;
import org.openintents.openpgp.OpenPgpError;
import org.openintents.openpgp.util.OpenPgpApi;
import org.openintents.openpgp.util.OpenPgpServiceConnection;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
public class AutofillService extends AccessibilityService {
private OpenPgpServiceConnection serviceConnection;
private SharedPreferences settings;
private AccessibilityNodeInfo info; // the original source of the event (the edittext field)
private ArrayList<PasswordItem> items; // password choices
private AlertDialog dialog;
private static boolean unlockOK = false; // if openkeychain user interaction was successful
private CharSequence packageName;
private boolean ignoreActionFocus = false;
public final class Constants {
public static final String TAG = "Keychain";
}
public static void setUnlockOK() { unlockOK = true; }
@Override
protected void onServiceConnected() {
super.onServiceConnected();
serviceConnection = new OpenPgpServiceConnection(AutofillService.this, "org.sufficientlysecure.keychain");
serviceConnection.bindToService();
settings = PreferenceManager.getDefaultSharedPreferences(this);
}
// TODO change search/search results (just use first result)
@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
// if returning to the source app from a successful AutofillActivity
if (event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED
&& event.getPackageName().equals(packageName) && unlockOK) {
decryptAndVerify();
}
// nothing to do if not password field focus, android version, or field is keychain app
if (!event.isPassword()
|| Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR2
|| event.getPackageName().equals("org.sufficientlysecure.keychain")) {
// dismiss dialog if WINDOW_STATE_CHANGED unless the keyboard caused it
// there may be other exceptions...
if (!(event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED
&& event.getPackageName().toString().contains("com.android.inputmethod"))
&& dialog != null && dialog.isShowing()) {
dialog.dismiss();
}
return;
}
// if past this point, a new dialog will be created, so dismiss the existing
if (dialog != null && dialog.isShowing()) {
dialog.dismiss();
}
// ignore the ACTION_FOCUS from decryptAndVerify
if (ignoreActionFocus) {
ignoreActionFocus = false;
return;
}
// get the app name and find a corresponding password
info = event.getSource();
PackageManager packageManager = getPackageManager();
ApplicationInfo applicationInfo;
try {
applicationInfo = packageManager.getApplicationInfo(event.getPackageName().toString(), 0);
} catch (PackageManager.NameNotFoundException e) {
applicationInfo = null;
}
String appName = (applicationInfo != null ? packageManager.getApplicationLabel(applicationInfo) : "").toString();
items = recursiveFilter(appName, null);
if (items.isEmpty()) {
return;
}
if (dialog == null) {
AlertDialog.Builder builder = new AlertDialog.Builder(this, R.style.Theme_AppCompat_Dialog);
builder.setNegativeButton("Cancel", null);
builder.setPositiveButton("Fill", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
decryptAndVerify();
}
});
builder.setNeutralButton("Settings", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
dialog = builder.create();
dialog.setIcon(R.drawable.ic_launcher);
dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
dialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);
dialog.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
}
dialog.setTitle(items.get(0).toString());
dialog.show();
dialog.getWindow().setLayout(WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.WRAP_CONTENT);
}
private ArrayList<PasswordItem> recursiveFilter(String filter, File dir) {
ArrayList<PasswordItem> items = new ArrayList<>();
if (!PasswordRepository.isInitialized()) {
initialize();
}
ArrayList<PasswordItem> passwordItems = dir == null ?
PasswordRepository.getPasswords() :
PasswordRepository.getPasswords(dir);
for (PasswordItem item : passwordItems) {
if (item.getType() == PasswordItem.TYPE_CATEGORY) {
recursiveFilter(filter, item.getFile());
}
if (item.toString().toLowerCase().contains(filter.toLowerCase())) {
items.add(item);
}
}
return items;
}
// just like PasswordRepository.initialize().
private void initialize() {
File dir = null;
SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
if (settings.getBoolean("git_external", false)) {
if (settings.getString("git_external_repo", null) != null) {
dir = new File(settings.getString("git_external_repo", null));
}
} else {
dir = new File(getFilesDir() + "/store");
}
// temp for debug
if (dir == null) {
Intent intent = new Intent(this, UserPreference.class);
intent.putExtra("operation", "git_external");
startActivity(intent);
return;
}
// uninitialize the repo if the dir does not exist or is absolutely empty
if (!dir.exists() || !dir.isDirectory() || FileUtils.listFiles(dir, null, false).isEmpty()) {
settings.edit().putBoolean("repository_initialized", false).apply();
}
if (!PasswordRepository.getPasswords(dir).isEmpty()) {
settings.edit().putBoolean("repository_initialized", true).apply();
}
// create the repository static variable in PasswordRepository
PasswordRepository.getRepository(new File(dir.getAbsolutePath() + "/.git"));
}
@Override
public void onInterrupt() {
}
public void decryptAndVerify() {
unlockOK = false;
packageName = info.getPackageName();
Intent data = new Intent();
data.setAction(OpenPgpApi.ACTION_DECRYPT_VERIFY);
InputStream is = null;
try {
is = FileUtils.openInputStream(items.get(0).getFile());
} catch (IOException e) {
e.printStackTrace();
}
ByteArrayOutputStream os = new ByteArrayOutputStream();
OpenPgpApi api = new OpenPgpApi(AutofillService.this, serviceConnection.getService());
Intent result = api.executeApi(data, is, os);
switch (result.getIntExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR)) {
case OpenPgpApi.RESULT_CODE_SUCCESS: {
try {
String[] passContent = os.toString("UTF-8").split("\n");
// if the user focused on something else, take focus back
// but this will open another dialog...hack to ignore this
ignoreActionFocus = info.performAction(AccessibilityNodeInfo.ACTION_FOCUS);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
Bundle args = new Bundle();
args.putCharSequence(AccessibilityNodeInfo.ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE,
passContent[0]);
info.performAction(AccessibilityNodeInfo.ACTION_SET_TEXT, args);
} else {
ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
ClipData clip = ClipData.newPlainText("autofill_pm", passContent[0]);
clipboard.setPrimaryClip(clip);
info.performAction(AccessibilityNodeInfo.ACTION_PASTE);
clip = ClipData.newPlainText("autofill_pm", "MyPasswordIsDaBest!");
clipboard.setPrimaryClip(clip);
if (settings.getBoolean("clear_clipboard_20x", false)) {
for (int i = 0; i < 19; i++) {
clip = ClipData.newPlainText(String.valueOf(i), String.valueOf(i));
clipboard.setPrimaryClip(clip);
}
}
}
} catch (UnsupportedEncodingException e) {
Log.e(Constants.TAG, "UnsupportedEncodingException", e);
}
break;
}
case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: {
Log.i("PgpHandler", "RESULT_CODE_USER_INTERACTION_REQUIRED");
PendingIntent pi = result.getParcelableExtra(OpenPgpApi.RESULT_INTENT);
// need to start a blank activity to call startIntentSenderForResult
Intent intent = new Intent(AutofillService.this, AutofillActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK
| Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
intent.putExtra("pending_intent", pi);
startActivity(intent);
break;
}
case OpenPgpApi.RESULT_CODE_ERROR: {
OpenPgpError error = result.getParcelableExtra(OpenPgpApi.RESULT_ERROR);
Toast.makeText(AutofillService.this,
"Error from OpenKeyChain : " + error.getMessage(),
Toast.LENGTH_LONG).show();
Log.e(Constants.TAG, "onError getErrorId:" + error.getErrorId());
Log.e(Constants.TAG, "onError getMessage:" + error.getMessage());
break;
}
}
}
}
|
