blob: 60fc84dba9ba39d67f442a3fd9963a61e994ca0d (
plain)
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
|
/*
* Copyright (C) 2016 Nikita Mikhailov <nikita.s.mikhailov@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.util;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbManager;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.securitytoken.UsbTransport;
import org.sufficientlysecure.keychain.ui.UsbEventReceiverActivity;
public class UsbConnectionDispatcher {
private Activity mActivity;
private OnDiscoveredUsbDeviceListener mListener;
private UsbManager mUsbManager;
/**
* Receives broadcast when a supported USB device get permission.
*/
private final BroadcastReceiver mUsbReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
switch (action) {
case UsbEventReceiverActivity.ACTION_USB_PERMISSION: {
android.hardware.usb.UsbDevice usbDevice = intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
boolean permission = intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED,
false);
if (permission) {
Log.d(Constants.TAG, "Got permission for " + usbDevice.getDeviceName());
mListener.usbDeviceDiscovered(usbDevice);
}
break;
}
}
}
};
public UsbConnectionDispatcher(final Activity activity, final OnDiscoveredUsbDeviceListener listener) {
this.mActivity = activity;
this.mListener = listener;
this.mUsbManager = (UsbManager) activity.getSystemService(Context.USB_SERVICE);
}
public void onStart() {
final IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(UsbEventReceiverActivity.ACTION_USB_PERMISSION);
mActivity.registerReceiver(mUsbReceiver, intentFilter);
}
public void onStop() {
mActivity.unregisterReceiver(mUsbReceiver);
}
/**
* Rescans devices and triggers {@link OnDiscoveredUsbDeviceListener}
*/
public void rescanDevices() {
// Note: we don't check devices VID/PID because
// we check for permisssion instead.
// We should have permission only for matching devices
for (UsbDevice device : mUsbManager.getDeviceList().values()) {
if (mUsbManager.hasPermission(device)) {
if (mListener != null) {
mListener.usbDeviceDiscovered(device);
}
break;
}
}
}
public interface OnDiscoveredUsbDeviceListener {
void usbDeviceDiscovered(UsbDevice usbDevice);
}
}
|