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
|
/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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 com.android.systemui.usb;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.debug.IAdbManager;
import android.hardware.usb.UsbManager;
import android.os.Bundle;
import android.os.IBinder;
import android.os.ServiceManager;
import android.os.SystemProperties;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.CheckBox;
import com.android.internal.app.AlertActivity;
import com.android.internal.app.AlertController;
import com.android.systemui.R;
import com.android.systemui.broadcast.BroadcastDispatcher;
import javax.inject.Inject;
public class UsbDebuggingActivity extends AlertActivity
implements DialogInterface.OnClickListener {
private static final String TAG = "UsbDebuggingActivity";
private CheckBox mAlwaysAllow;
private UsbDisconnectedReceiver mDisconnectedReceiver;
private final BroadcastDispatcher mBroadcastDispatcher;
private String mKey;
private boolean mServiceNotified;
@Inject
public UsbDebuggingActivity(BroadcastDispatcher broadcastDispatcher) {
super();
mBroadcastDispatcher = broadcastDispatcher;
}
@Override
public void onCreate(Bundle icicle) {
Window window = getWindow();
window.addSystemFlags(
WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
window.setType(WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG);
super.onCreate(icicle);
// Emulator does not support reseating the usb cable to reshow the dialog.
boolean isEmulator = SystemProperties.get("ro.boot.qemu").equals("1");
if (SystemProperties.getInt("service.adb.tcp.port", 0) == 0 && !isEmulator) {
mDisconnectedReceiver = new UsbDisconnectedReceiver(this);
IntentFilter filter = new IntentFilter(UsbManager.ACTION_USB_STATE);
mBroadcastDispatcher.registerReceiver(mDisconnectedReceiver, filter);
}
Intent intent = getIntent();
String fingerprints = intent.getStringExtra("fingerprints");
mKey = intent.getStringExtra("key");
if (fingerprints == null || mKey == null) {
finish();
return;
}
final AlertController.AlertParams ap = mAlertParams;
ap.mTitle = getString(R.string.usb_debugging_title);
ap.mMessage = getString(R.string.usb_debugging_message, fingerprints);
ap.mPositiveButtonText = getString(R.string.usb_debugging_allow);
ap.mNegativeButtonText = getString(android.R.string.cancel);
ap.mPositiveButtonListener = this;
ap.mNegativeButtonListener = this;
// add "always allow" checkbox
LayoutInflater inflater = LayoutInflater.from(ap.mContext);
View checkbox = inflater.inflate(com.android.internal.R.layout.always_use_checkbox, null);
mAlwaysAllow = (CheckBox)checkbox.findViewById(com.android.internal.R.id.alwaysUse);
mAlwaysAllow.setText(getString(R.string.usb_debugging_always));
ap.mView = checkbox;
window.setCloseOnTouchOutside(false);
setupAlert();
}
@Override
public void onWindowAttributesChanged(WindowManager.LayoutParams params) {
super.onWindowAttributesChanged(params);
}
private class UsbDisconnectedReceiver extends BroadcastReceiver {
private final Activity mActivity;
UsbDisconnectedReceiver(Activity activity) {
mActivity = activity;
}
@Override
public void onReceive(Context content, Intent intent) {
String action = intent.getAction();
if (!UsbManager.ACTION_USB_STATE.equals(action)) {
return;
}
boolean connected = intent.getBooleanExtra(UsbManager.USB_CONNECTED, false);
if (!connected) {
Log.d(TAG, "USB disconnected, notifying service");
notifyService(false);
mActivity.finish();
}
}
}
@Override
protected void onDestroy() {
if (mDisconnectedReceiver != null) {
mBroadcastDispatcher.unregisterReceiver(mDisconnectedReceiver);
}
// Only notify the service if the activity is finishing; if onDestroy has been called due to
// a configuration change then allow the user to still authorize the connection the next
// time the activity is in the foreground.
if (isFinishing()) {
// If the ADB service has not yet been notified due to this dialog being closed in some
// other way then notify the service to deny the connection to ensure system_server
// sends a response to adbd.
if (!mServiceNotified) {
notifyService(false);
}
}
super.onDestroy();
}
@Override
public void onClick(DialogInterface dialog, int which) {
boolean allow = (which == AlertDialog.BUTTON_POSITIVE);
boolean alwaysAllow = allow && mAlwaysAllow.isChecked();
notifyService(allow, alwaysAllow);
finish();
}
/**
* Notifies the ADB service as to whether the current ADB request should be allowed; if the
* request is allowed it is only allowed for this session, and the user should be prompted again
* on subsequent requests from this key.
*
* @param allow whether the connection should be allowed for this session
*/
private void notifyService(boolean allow) {
notifyService(allow, false);
}
/**
* Notifies the ADB service as to whether the current ADB request should be allowed, and if
* subsequent requests from this key should be allowed without user consent.
*
* @param allow whether the connection should be allowed
* @param alwaysAllow whether subsequent requests from this key should be allowed without user
* consent
*/
private void notifyService(boolean allow, boolean alwaysAllow) {
try {
IBinder b = ServiceManager.getService(ADB_SERVICE);
IAdbManager service = IAdbManager.Stub.asInterface(b);
if (allow) {
service.allowDebugging(alwaysAllow, mKey);
} else {
service.denyDebugging();
}
mServiceNotified = true;
} catch (Exception e) {
Log.e(TAG, "Unable to notify Usb service", e);
}
}
}
|
