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android / platform / packages / apps / Nfc / ab2b44b97936d2c5dbf6eda1245ca793e840713f / . / src / com / android / nfc / NfcService.java
blob: 9c143036631d8083cceb8b93505d801f1b67f7a3 [file] [log] [blame]
/*
* Copyright (C) 2010 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.nfc;
import com.android.internal.nfc.LlcpServiceSocket;
import com.android.internal.nfc.LlcpSocket;
import com.android.nfc.RegisteredComponentCache.ComponentInfo;
import com.android.nfc.ndefpush.NdefPushClient;
import com.android.nfc.ndefpush.NdefPushServer;
import android.app.Activity;
import android.app.ActivityManagerNative;
import android.app.Application;
import android.app.IActivityManager;
import android.app.PendingIntent;
import android.app.PendingIntent.CanceledException;
import android.app.StatusBarManager;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.pm.ResolveInfo;
import android.net.Uri;
import android.nfc.ErrorCodes;
import android.nfc.FormatException;
import android.nfc.ILlcpConnectionlessSocket;
import android.nfc.ILlcpServiceSocket;
import android.nfc.ILlcpSocket;
import android.nfc.INfcAdapter;
import android.nfc.INfcSecureElement;
import android.nfc.INfcTag;
import android.nfc.IP2pInitiator;
import android.nfc.IP2pTarget;
import android.nfc.LlcpPacket;
import android.nfc.NdefMessage;
import android.nfc.NdefRecord;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.nfc.TechListParcel;
import android.nfc.TransceiveResult;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.util.Log;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.charset.Charsets;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Timer;
import java.util.TimerTask;
public class NfcService extends Application {
static final boolean DBG = false;
private static final String MY_TAG_FILE_NAME = "mytag";
static {
System.loadLibrary("nfc_jni");
}
/**
* NFC Forum "URI Record Type Definition"
*
* This is a mapping of "URI Identifier Codes" to URI string prefixes,
* per section 3.2.2 of the NFC Forum URI Record Type Definition document.
*/
private static final String[] URI_PREFIX_MAP = new String[] {
"", // 0x00
"http://www.", // 0x01
"https://www.", // 0x02
"http://", // 0x03
"https://", // 0x04
"tel:", // 0x05
"mailto:", // 0x06
"ftp://anonymous:anonymous@", // 0x07
"ftp://ftp.", // 0x08
"ftps://", // 0x09
"sftp://", // 0x0A
"smb://", // 0x0B
"nfs://", // 0x0C
"ftp://", // 0x0D
"dav://", // 0x0E
"news:", // 0x0F
"telnet://", // 0x10
"imap:", // 0x11
"rtsp://", // 0x12
"urn:", // 0x13
"pop:", // 0x14
"sip:", // 0x15
"sips:", // 0x16
"tftp:", // 0x17
"btspp://", // 0x18
"btl2cap://", // 0x19
"btgoep://", // 0x1A
"tcpobex://", // 0x1B
"irdaobex://", // 0x1C
"file://", // 0x1D
"urn:epc:id:", // 0x1E
"urn:epc:tag:", // 0x1F
"urn:epc:pat:", // 0x20
"urn:epc:raw:", // 0x21
"urn:epc:", // 0x22
};
public static final String SERVICE_NAME = "nfc";
private static final String TAG = "NfcService";
private static final String NFC_PERM = android.Manifest.permission.NFC;
private static final String NFC_PERM_ERROR = "NFC permission required";
private static final String ADMIN_PERM = android.Manifest.permission.WRITE_SECURE_SETTINGS;
private static final String ADMIN_PERM_ERROR = "WRITE_SECURE_SETTINGS permission required";
private static final String PREF = "NfcServicePrefs";
private static final String PREF_NFC_ON = "nfc_on";
private static final boolean NFC_ON_DEFAULT = true;
private static final String PREF_SECURE_ELEMENT_ON = "secure_element_on";
private static final boolean SECURE_ELEMENT_ON_DEFAULT = false;
private static final String PREF_SECURE_ELEMENT_ID = "secure_element_id";
private static final int SECURE_ELEMENT_ID_DEFAULT = 0;
private static final String PREF_LLCP_LTO = "llcp_lto";
private static final int LLCP_LTO_DEFAULT = 150;
private static final int LLCP_LTO_MAX = 255;
/** Maximum Information Unit */
private static final String PREF_LLCP_MIU = "llcp_miu";
private static final int LLCP_MIU_DEFAULT = 128;
private static final int LLCP_MIU_MAX = 2176;
/** Well Known Service List */
private static final String PREF_LLCP_WKS = "llcp_wks";
private static final int LLCP_WKS_DEFAULT = 1;
private static final int LLCP_WKS_MAX = 15;
private static final String PREF_LLCP_OPT = "llcp_opt";
private static final int LLCP_OPT_DEFAULT = 0;
private static final int LLCP_OPT_MAX = 3;
private static final String PREF_DISCOVERY_A = "discovery_a";
private static final boolean DISCOVERY_A_DEFAULT = true;
private static final String PREF_DISCOVERY_B = "discovery_b";
private static final boolean DISCOVERY_B_DEFAULT = true;
private static final String PREF_DISCOVERY_F = "discovery_f";
private static final boolean DISCOVERY_F_DEFAULT = true;
private static final String PREF_DISCOVERY_15693 = "discovery_15693";
private static final boolean DISCOVERY_15693_DEFAULT = true;
private static final String PREF_DISCOVERY_NFCIP = "discovery_nfcip";
private static final boolean DISCOVERY_NFCIP_DEFAULT = true;
/** NFC Reader Discovery mode for enableDiscovery() */
private static final int DISCOVERY_MODE_READER = 0;
private static final int PROPERTY_LLCP_LTO = 0;
private static final String PROPERTY_LLCP_LTO_VALUE = "llcp.lto";
private static final int PROPERTY_LLCP_MIU = 1;
private static final String PROPERTY_LLCP_MIU_VALUE = "llcp.miu";
private static final int PROPERTY_LLCP_WKS = 2;
private static final String PROPERTY_LLCP_WKS_VALUE = "llcp.wks";
private static final int PROPERTY_LLCP_OPT = 3;
private static final String PROPERTY_LLCP_OPT_VALUE = "llcp.opt";
private static final int PROPERTY_NFC_DISCOVERY_A = 4;
private static final String PROPERTY_NFC_DISCOVERY_A_VALUE = "discovery.iso14443A";
private static final int PROPERTY_NFC_DISCOVERY_B = 5;
private static final String PROPERTY_NFC_DISCOVERY_B_VALUE = "discovery.iso14443B";
private static final int PROPERTY_NFC_DISCOVERY_F = 6;
private static final String PROPERTY_NFC_DISCOVERY_F_VALUE = "discovery.felica";
private static final int PROPERTY_NFC_DISCOVERY_15693 = 7;
private static final String PROPERTY_NFC_DISCOVERY_15693_VALUE = "discovery.iso15693";
private static final int PROPERTY_NFC_DISCOVERY_NFCIP = 8;
private static final String PROPERTY_NFC_DISCOVERY_NFCIP_VALUE = "discovery.nfcip";
static final int MSG_NDEF_TAG = 0;
static final int MSG_CARD_EMULATION = 1;
static final int MSG_LLCP_LINK_ACTIVATION = 2;
static final int MSG_LLCP_LINK_DEACTIVATED = 3;
static final int MSG_TARGET_DESELECTED = 4;
static final int MSG_SHOW_MY_TAG_ICON = 5;
static final int MSG_HIDE_MY_TAG_ICON = 6;
static final int MSG_MOCK_NDEF = 7;
static final int MSG_SE_FIELD_ACTIVATED = 8;
static final int MSG_SE_FIELD_DEACTIVATED = 9;
// Locked on mNfcAdapter
PendingIntent mDispatchOverrideIntent;
IntentFilter[] mDispatchOverrideFilters;
String[][] mDispatchOverrideTechLists;
// TODO: none of these appear to be synchronized but are
// read/written from different threads (notably Binder threads)...
private int mGeneratedSocketHandle = 0;
private volatile boolean mIsNfcEnabled = false;
private int mSelectedSeId = 0;
private boolean mNfcSecureElementState;
// Secure element
private Timer mTimerOpenSmx;
private boolean isClosed = false;
private boolean isOpened = false;
private boolean mOpenSmxPending = false;
private NativeNfcSecureElement mSecureElement;
private int mSecureElementHandle;
// fields below are used in multiple threads and protected by synchronized(this)
private final HashMap<Integer, Object> mObjectMap = new HashMap<Integer, Object>();
private final HashMap<Integer, Object> mSocketMap = new HashMap<Integer, Object>();
private boolean mScreenOn;
// fields below are final after onCreate()
Context mContext;
private NativeNfcManager mManager;
private SharedPreferences mPrefs;
private SharedPreferences.Editor mPrefsEditor;
private PowerManager.WakeLock mWakeLock;
private IActivityManager mIActivityManager;
NdefPushClient mNdefPushClient;
NdefPushServer mNdefPushServer;
RegisteredComponentCache mTechListFilters;
private static NfcService sService;
public static NfcService getInstance() {
return sService;
}
@Override
public void onCreate() {
super.onCreate();
Log.i(TAG, "Starting NFC service");
sService = this;
mContext = this;
mManager = new NativeNfcManager(mContext, this);
mManager.initializeNativeStructure();
mNdefPushClient = new NdefPushClient(this);
mNdefPushServer = new NdefPushServer();
mTechListFilters = new RegisteredComponentCache(this,
NfcAdapter.ACTION_TECHNOLOGY_DISCOVERED, NfcAdapter.ACTION_TECHNOLOGY_DISCOVERED);
mSecureElement = new NativeNfcSecureElement();
mPrefs = mContext.getSharedPreferences(PREF, Context.MODE_PRIVATE);
mPrefsEditor = mPrefs.edit();
mIsNfcEnabled = false; // real preference read later
PowerManager pm = (PowerManager)getSystemService(Context.POWER_SERVICE);
mScreenOn = pm.isScreenOn();
mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "NfcService");
mIActivityManager = ActivityManagerNative.getDefault();
ServiceManager.addService(SERVICE_NAME, mNfcAdapter);
IntentFilter filter = new IntentFilter(NativeNfcManager.INTERNAL_TARGET_DESELECTED_ACTION);
filter.addAction(Intent.ACTION_SCREEN_OFF);
filter.addAction(Intent.ACTION_SCREEN_ON);
mContext.registerReceiver(mReceiver, filter);
Thread t = new Thread() {
@Override
public void run() {
boolean nfc_on = mPrefs.getBoolean(PREF_NFC_ON, NFC_ON_DEFAULT);
if (nfc_on) {
_enable(false);
}
}
};
t.start();
}
@Override
public void onTerminate() {
super.onTerminate();
// NFC application is persistent, it should not be destroyed by framework
Log.wtf(TAG, "NFC service is under attack!");
}
private final INfcAdapter.Stub mNfcAdapter = new INfcAdapter.Stub() {
/** Protected by "this" */
NdefMessage mLocalMessage = null;
@Override
public boolean enable() throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
boolean isSuccess = false;
boolean previouslyEnabled = isEnabled();
if (!previouslyEnabled) {
reset();
isSuccess = _enable(previouslyEnabled);
}
return isSuccess;
}
@Override
public boolean disable() throws RemoteException {
boolean isSuccess = false;
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
boolean previouslyEnabled = isEnabled();
if (DBG) Log.d(TAG, "Disabling NFC. previous=" + previouslyEnabled);
if (previouslyEnabled) {
/* tear down the my tag server */
mNdefPushServer.stop();
// Stop watchdog if tag present
// A convenient way to stop the watchdog properly consists of
// disconnecting the tag. The polling loop shall be stopped before
// to avoid the tag being discovered again.
maybeDisableDiscovery();
maybeDisconnectTarget();
isSuccess = mManager.deinitialize();
if (DBG) Log.d(TAG, "NFC success of deinitialize = " + isSuccess);
if (isSuccess) {
mIsNfcEnabled = false;
// Clear out any old dispatch overrides and NDEF push message
synchronized (this) {
mDispatchOverrideFilters = null;
mDispatchOverrideIntent = null;
}
mNdefPushClient.setForegroundMessage(null);
}
}
updateNfcOnSetting(previouslyEnabled);
return isSuccess;
}
@Override
public void enableForegroundDispatch(ComponentName activity, PendingIntent intent,
IntentFilter[] filters, TechListParcel techListsParcel) {
// Permission check
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
// Argument validation
if (activity == null || intent == null) {
throw new IllegalArgumentException();
}
// Validate the IntentFilters
if (filters != null) {
if (filters.length == 0) {
filters = null;
} else {
for (IntentFilter filter : filters) {
if (filter == null) {
throw new IllegalArgumentException("null IntentFilter");
}
}
}
}
// Validate the tech lists
String[][] techLists = null;
if (techListsParcel != null) {
techLists = techListsParcel.getTechLists();
}
synchronized (this) {
if (mDispatchOverrideIntent != null) {
Log.e(TAG, "Replacing active dispatch overrides");
}
mDispatchOverrideIntent = intent;
mDispatchOverrideFilters = filters;
mDispatchOverrideTechLists = techLists;
}
}
@Override
public void disableForegroundDispatch(ComponentName activity) {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
synchronized (this) {
if (mDispatchOverrideIntent == null) {
Log.e(TAG, "No active foreground dispatching");
}
mDispatchOverrideIntent = null;
mDispatchOverrideFilters = null;
}
}
@Override
public void enableForegroundNdefPush(ComponentName activity, NdefMessage msg) {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
if (activity == null || msg == null) {
throw new IllegalArgumentException();
}
if (mNdefPushClient.setForegroundMessage(msg)) {
Log.e(TAG, "Replacing active NDEF push message");
}
}
@Override
public void disableForegroundNdefPush(ComponentName activity) {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
if (!mNdefPushClient.setForegroundMessage(null)) {
Log.e(TAG, "No active foreground NDEF push message");
}
}
@Override
public int createLlcpConnectionlessSocket(int sap) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* Check SAP is not already used */
/* Store the socket handle */
int sockeHandle = mGeneratedSocketHandle;
NativeLlcpConnectionlessSocket socket;
socket = mManager.doCreateLlcpConnectionlessSocket(sap);
if (socket != null) {
synchronized(NfcService.this) {
/* update socket handle generation */
mGeneratedSocketHandle++;
/* Add the socket into the socket map */
mSocketMap.put(mGeneratedSocketHandle, socket);
return mGeneratedSocketHandle;
}
} else {
/* Get Error Status */
int errorStatus = mManager.doGetLastError();
switch (errorStatus) {
case ErrorCodes.ERROR_BUFFER_TO_SMALL:
return ErrorCodes.ERROR_BUFFER_TO_SMALL;
case ErrorCodes.ERROR_INSUFFICIENT_RESOURCES:
return ErrorCodes.ERROR_INSUFFICIENT_RESOURCES;
default:
return ErrorCodes.ERROR_SOCKET_CREATION;
}
}
}
@Override
public int createLlcpServiceSocket(int sap, String sn, int miu, int rw, int linearBufferLength)
throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
NativeLlcpServiceSocket socket;
socket = mManager.doCreateLlcpServiceSocket(sap, sn, miu, rw, linearBufferLength);
if (socket != null) {
synchronized(NfcService.this) {
/* update socket handle generation */
mGeneratedSocketHandle++;
/* Add the socket into the socket map */
mSocketMap.put(mGeneratedSocketHandle, socket);
return mGeneratedSocketHandle;
}
} else {
/* Get Error Status */
int errorStatus = mManager.doGetLastError();
switch (errorStatus) {
case ErrorCodes.ERROR_BUFFER_TO_SMALL:
return ErrorCodes.ERROR_BUFFER_TO_SMALL;
case ErrorCodes.ERROR_INSUFFICIENT_RESOURCES:
return ErrorCodes.ERROR_INSUFFICIENT_RESOURCES;
default:
return ErrorCodes.ERROR_SOCKET_CREATION;
}
}
}
@Override
public int createLlcpSocket(int sap, int miu, int rw, int linearBufferLength)
throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
if (DBG) Log.d(TAG, "creating llcp socket");
NativeLlcpSocket socket;
socket = mManager.doCreateLlcpSocket(sap, miu, rw, linearBufferLength);
if (socket != null) {
synchronized(NfcService.this) {
/* update socket handle generation */
mGeneratedSocketHandle++;
/* Add the socket into the socket map */
mSocketMap.put(mGeneratedSocketHandle, socket);
return mGeneratedSocketHandle;
}
} else {
/* Get Error Status */
int errorStatus = mManager.doGetLastError();
Log.d(TAG, "failed to create llcp socket: " + ErrorCodes.asString(errorStatus));
switch (errorStatus) {
case ErrorCodes.ERROR_BUFFER_TO_SMALL:
return ErrorCodes.ERROR_BUFFER_TO_SMALL;
case ErrorCodes.ERROR_INSUFFICIENT_RESOURCES:
return ErrorCodes.ERROR_INSUFFICIENT_RESOURCES;
default:
return ErrorCodes.ERROR_SOCKET_CREATION;
}
}
}
@Override
public int deselectSecureElement() throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
if (mSelectedSeId == 0) {
return ErrorCodes.ERROR_NO_SE_CONNECTED;
}
mManager.doDeselectSecureElement(mSelectedSeId);
mNfcSecureElementState = false;
mSelectedSeId = 0;
/* store preference */
mPrefsEditor.putBoolean(PREF_SECURE_ELEMENT_ON, false);
mPrefsEditor.putInt(PREF_SECURE_ELEMENT_ID, 0);
mPrefsEditor.apply();
return ErrorCodes.SUCCESS;
}
@Override
public ILlcpConnectionlessSocket getLlcpConnectionlessInterface() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mLlcpConnectionlessSocketService;
}
@Override
public ILlcpSocket getLlcpInterface() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mLlcpSocket;
}
@Override
public ILlcpServiceSocket getLlcpServiceInterface() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mLlcpServerSocketService;
}
@Override
public INfcTag getNfcTagInterface() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mNfcTagService;
}
@Override
public IP2pInitiator getP2pInitiatorInterface() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mP2pInitiatorService;
}
@Override
public IP2pTarget getP2pTargetInterface() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mP2pTargetService;
}
public INfcSecureElement getNfcSecureElementInterface() {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
return mSecureElementService;
}
@Override
public String getProperties(String param) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
if (param == null) {
return null;
}
if (param.equals(PROPERTY_LLCP_LTO_VALUE)) {
return Integer.toString(mPrefs.getInt(PREF_LLCP_LTO, LLCP_LTO_DEFAULT));
} else if (param.equals(PROPERTY_LLCP_MIU_VALUE)) {
return Integer.toString(mPrefs.getInt(PREF_LLCP_MIU, LLCP_MIU_DEFAULT));
} else if (param.equals(PROPERTY_LLCP_WKS_VALUE)) {
return Integer.toString(mPrefs.getInt(PREF_LLCP_WKS, LLCP_WKS_DEFAULT));
} else if (param.equals(PROPERTY_LLCP_OPT_VALUE)) {
return Integer.toString(mPrefs.getInt(PREF_LLCP_OPT, LLCP_OPT_DEFAULT));
} else if (param.equals(PROPERTY_NFC_DISCOVERY_A_VALUE)) {
return Boolean.toString(mPrefs.getBoolean(PREF_DISCOVERY_A, DISCOVERY_A_DEFAULT));
} else if (param.equals(PROPERTY_NFC_DISCOVERY_B_VALUE)) {
return Boolean.toString(mPrefs.getBoolean(PREF_DISCOVERY_B, DISCOVERY_B_DEFAULT));
} else if (param.equals(PROPERTY_NFC_DISCOVERY_F_VALUE)) {
return Boolean.toString(mPrefs.getBoolean(PREF_DISCOVERY_F, DISCOVERY_F_DEFAULT));
} else if (param.equals(PROPERTY_NFC_DISCOVERY_NFCIP_VALUE)) {
return Boolean.toString(mPrefs.getBoolean(PREF_DISCOVERY_NFCIP, DISCOVERY_NFCIP_DEFAULT));
} else if (param.equals(PROPERTY_NFC_DISCOVERY_15693_VALUE)) {
return Boolean.toString(mPrefs.getBoolean(PREF_DISCOVERY_15693, DISCOVERY_15693_DEFAULT));
} else {
return "Unknown property";
}
}
@Override
public int[] getSecureElementList() throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
int[] list = null;
if (mIsNfcEnabled == true) {
list = mManager.doGetSecureElementList();
}
return list;
}
@Override
public int getSelectedSecureElement() throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
return mSelectedSeId;
}
@Override
public boolean isEnabled() throws RemoteException {
return mIsNfcEnabled;
}
@Override
public void openTagConnection(Tag tag) throws RemoteException {
// TODO: Remove obsolete code
}
@Override
public int selectSecureElement(int seId) throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
if (mSelectedSeId == seId) {
return ErrorCodes.ERROR_SE_ALREADY_SELECTED;
}
if (mSelectedSeId != 0) {
return ErrorCodes.ERROR_SE_CONNECTED;
}
mSelectedSeId = seId;
mManager.doSelectSecureElement(mSelectedSeId);
/* store */
mPrefsEditor.putBoolean(PREF_SECURE_ELEMENT_ON, true);
mPrefsEditor.putInt(PREF_SECURE_ELEMENT_ID, mSelectedSeId);
mPrefsEditor.apply();
mNfcSecureElementState = true;
return ErrorCodes.SUCCESS;
}
@Override
public int setProperties(String param, String value) throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
if (isEnabled()) {
return ErrorCodes.ERROR_NFC_ON;
}
int val;
/* Check params validity */
if (param == null || value == null) {
return ErrorCodes.ERROR_INVALID_PARAM;
}
if (param.equals(PROPERTY_LLCP_LTO_VALUE)) {
val = Integer.parseInt(value);
/* Check params */
if (val > LLCP_LTO_MAX)
return ErrorCodes.ERROR_INVALID_PARAM;
/* Store value */
mPrefsEditor.putInt(PREF_LLCP_LTO, val);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_LLCP_LTO, val);
} else if (param.equals(PROPERTY_LLCP_MIU_VALUE)) {
val = Integer.parseInt(value);
/* Check params */
if ((val < LLCP_MIU_DEFAULT) || (val > LLCP_MIU_MAX))
return ErrorCodes.ERROR_INVALID_PARAM;
/* Store value */
mPrefsEditor.putInt(PREF_LLCP_MIU, val);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_LLCP_MIU, val);
} else if (param.equals(PROPERTY_LLCP_WKS_VALUE)) {
val = Integer.parseInt(value);
/* Check params */
if (val > LLCP_WKS_MAX)
return ErrorCodes.ERROR_INVALID_PARAM;
/* Store value */
mPrefsEditor.putInt(PREF_LLCP_WKS, val);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_LLCP_WKS, val);
} else if (param.equals(PROPERTY_LLCP_OPT_VALUE)) {
val = Integer.parseInt(value);
/* Check params */
if (val > LLCP_OPT_MAX)
return ErrorCodes.ERROR_INVALID_PARAM;
/* Store value */
mPrefsEditor.putInt(PREF_LLCP_OPT, val);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_LLCP_OPT, val);
} else if (param.equals(PROPERTY_NFC_DISCOVERY_A_VALUE)) {
boolean b = Boolean.parseBoolean(value);
/* Store value */
mPrefsEditor.putBoolean(PREF_DISCOVERY_A, b);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_A, b ? 1 : 0);
} else if (param.equals(PROPERTY_NFC_DISCOVERY_B_VALUE)) {
boolean b = Boolean.parseBoolean(value);
/* Store value */
mPrefsEditor.putBoolean(PREF_DISCOVERY_B, b);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_B, b ? 1 : 0);
} else if (param.equals(PROPERTY_NFC_DISCOVERY_F_VALUE)) {
boolean b = Boolean.parseBoolean(value);
/* Store value */
mPrefsEditor.putBoolean(PREF_DISCOVERY_F, b);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_F, b ? 1 : 0);
} else if (param.equals(PROPERTY_NFC_DISCOVERY_15693_VALUE)) {
boolean b = Boolean.parseBoolean(value);
/* Store value */
mPrefsEditor.putBoolean(PREF_DISCOVERY_15693, b);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_15693, b ? 1 : 0);
} else if (param.equals(PROPERTY_NFC_DISCOVERY_NFCIP_VALUE)) {
boolean b = Boolean.parseBoolean(value);
/* Store value */
mPrefsEditor.putBoolean(PREF_DISCOVERY_NFCIP, b);
mPrefsEditor.apply();
/* Update JNI */
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_NFCIP, b ? 1 : 0);
} else {
return ErrorCodes.ERROR_INVALID_PARAM;
}
return ErrorCodes.SUCCESS;
}
@Override
public NdefMessage localGet() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
synchronized (this) {
return mLocalMessage;
}
}
@Override
public void localSet(NdefMessage message) throws RemoteException {
mContext.enforceCallingOrSelfPermission(ADMIN_PERM, ADMIN_PERM_ERROR);
synchronized (this) {
mLocalMessage = message;
Context context = NfcService.this.getApplicationContext();
// Send a message to the UI thread to show or hide the icon so the requests are
// serialized and the icon can't get out of sync with reality.
if (message != null) {
FileOutputStream out = null;
try {
out = context.openFileOutput(MY_TAG_FILE_NAME, Context.MODE_PRIVATE);
byte[] bytes = message.toByteArray();
if (bytes.length == 0) {
Log.w(TAG, "Setting a empty mytag");
}
out.write(bytes);
} catch (IOException e) {
Log.e(TAG, "Could not write mytag file", e);
} finally {
try {
if (out != null) {
out.flush();
out.close();
}
} catch (IOException e) {
// Ignore
}
}
// Only show the icon if NFC is enabled.
if (mIsNfcEnabled) {
sendMessage(MSG_SHOW_MY_TAG_ICON, null);
}
} else {
context.deleteFile(MY_TAG_FILE_NAME);
sendMessage(MSG_HIDE_MY_TAG_ICON, null);
}
}
}
};
private final ILlcpSocket mLlcpSocket = new ILlcpSocket.Stub() {
private NativeLlcpSocket findSocket(int nativeHandle) {
Object socket = NfcService.this.findSocket(nativeHandle);
if (!(socket instanceof NativeLlcpSocket)) {
return null;
}
return (NativeLlcpSocket) socket;
}
@Override
public int close(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
socket.doClose();
/* Remove the socket closed from the hmap */
RemoveSocket(nativeHandle);
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_IO;
}
}
@Override
public int connect(int nativeHandle, int sap) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
isSuccess = socket.doConnect(sap);
if (isSuccess) {
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_IO;
}
} else {
return ErrorCodes.ERROR_IO;
}
}
@Override
public int connectByName(int nativeHandle, String sn) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
isSuccess = socket.doConnectBy(sn);
if (isSuccess) {
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_IO;
}
} else {
return ErrorCodes.ERROR_IO;
}
}
@Override
public int getLocalSap(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
return socket.getSap();
} else {
return 0;
}
}
@Override
public int getLocalSocketMiu(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
return socket.getMiu();
} else {
return 0;
}
}
@Override
public int getLocalSocketRw(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
return socket.getRw();
} else {
return 0;
}
}
@Override
public int getRemoteSocketMiu(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
if (socket.doGetRemoteSocketMiu() != 0) {
return socket.doGetRemoteSocketMiu();
} else {
return ErrorCodes.ERROR_SOCKET_NOT_CONNECTED;
}
} else {
return ErrorCodes.ERROR_SOCKET_NOT_CONNECTED;
}
}
@Override
public int getRemoteSocketRw(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
if (socket.doGetRemoteSocketRw() != 0) {
return socket.doGetRemoteSocketRw();
} else {
return ErrorCodes.ERROR_SOCKET_NOT_CONNECTED;
}
} else {
return ErrorCodes.ERROR_SOCKET_NOT_CONNECTED;
}
}
@Override
public int receive(int nativeHandle, byte[] receiveBuffer) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
return socket.doReceive(receiveBuffer);
} else {
return 0;
}
}
@Override
public int send(int nativeHandle, byte[] data) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpSocket socket = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
isSuccess = socket.doSend(data);
if (isSuccess) {
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_IO;
}
} else {
return ErrorCodes.ERROR_IO;
}
}
};
private final ILlcpServiceSocket mLlcpServerSocketService = new ILlcpServiceSocket.Stub() {
private NativeLlcpServiceSocket findSocket(int nativeHandle) {
Object socket = NfcService.this.findSocket(nativeHandle);
if (!(socket instanceof NativeLlcpServiceSocket)) {
return null;
}
return (NativeLlcpServiceSocket) socket;
}
@Override
public int accept(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpServiceSocket socket = null;
NativeLlcpSocket clientSocket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
clientSocket = socket.doAccept(socket.getMiu(),
socket.getRw(), socket.getLinearBufferLength());
if (clientSocket != null) {
/* Add the socket into the socket map */
synchronized(this) {
mGeneratedSocketHandle++;
mSocketMap.put(mGeneratedSocketHandle, clientSocket);
return mGeneratedSocketHandle;
}
} else {
return ErrorCodes.ERROR_IO;
}
} else {
return ErrorCodes.ERROR_IO;
}
}
@Override
public void close(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpServiceSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
socket.doClose();
synchronized (this) {
/* Remove the socket closed from the hmap */
RemoveSocket(nativeHandle);
}
}
}
};
private final ILlcpConnectionlessSocket mLlcpConnectionlessSocketService = new ILlcpConnectionlessSocket.Stub() {
private NativeLlcpConnectionlessSocket findSocket(int nativeHandle) {
Object socket = NfcService.this.findSocket(nativeHandle);
if (!(socket instanceof NativeLlcpConnectionlessSocket)) {
return null;
}
return (NativeLlcpConnectionlessSocket) socket;
}
@Override
public void close(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpConnectionlessSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
socket.doClose();
/* Remove the socket closed from the hmap */
RemoveSocket(nativeHandle);
}
}
@Override
public int getSap(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpConnectionlessSocket socket = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
return socket.getSap();
} else {
return 0;
}
}
@Override
public LlcpPacket receiveFrom(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpConnectionlessSocket socket = null;
LlcpPacket packet;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
packet = socket.doReceiveFrom(socket.getLinkMiu());
if (packet != null) {
return packet;
}
return null;
} else {
return null;
}
}
@Override
public int sendTo(int nativeHandle, LlcpPacket packet) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeLlcpConnectionlessSocket socket = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the socket in the hmap */
socket = findSocket(nativeHandle);
if (socket != null) {
isSuccess = socket.doSendTo(packet.getRemoteSap(), packet.getDataBuffer());
if (isSuccess) {
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_IO;
}
} else {
return ErrorCodes.ERROR_IO;
}
}
};
private final INfcTag mNfcTagService = new INfcTag.Stub() {
@Override
public int close(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag != null) {
/* Remove the device from the hmap */
unregisterObject(nativeHandle);
tag.disconnect();
return ErrorCodes.SUCCESS;
}
/* Restart polling loop for notification */
maybeEnableDiscovery();
return ErrorCodes.ERROR_DISCONNECT;
}
@Override
public int connect(int nativeHandle, int technology) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag == null) {
return ErrorCodes.ERROR_DISCONNECT;
}
// Note that on most tags, all technologies are behind a single
// handle. This means that the connect at the lower levels
// will do nothing, as the tag is already connected to that handle.
if (tag.connect(technology)) {
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_DISCONNECT;
}
}
@Override
public int reconnect(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag != null) {
if (tag.reconnect()) {
return ErrorCodes.SUCCESS;
} else {
return ErrorCodes.ERROR_DISCONNECT;
}
}
return ErrorCodes.ERROR_DISCONNECT;
}
@Override
public int[] getTechList(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the tag in the hmap */
NativeNfcTag tag = (NativeNfcTag) findObject(nativeHandle);
if (tag != null) {
return tag.getTechList();
}
return null;
}
@Override
public byte[] getUid(int nativeHandle) throws RemoteException {
NativeNfcTag tag = null;
byte[] uid;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag != null) {
uid = tag.getUid();
return uid;
}
return null;
}
@Override
public boolean isPresent(int nativeHandle) throws RemoteException {
NativeNfcTag tag = null;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return false;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag == null) {
return false;
}
return tag.isPresent();
}
@Override
public boolean isNdef(int nativeHandle) throws RemoteException {
NativeNfcTag tag = null;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return isSuccess;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
int[] ndefInfo = new int[2];
if (tag != null) {
isSuccess = tag.checkNdef(ndefInfo);
}
return isSuccess;
}
@Override
public TransceiveResult transceive(int nativeHandle, byte[] data, boolean raw)
throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag = null;
byte[] response;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag != null) {
int[] targetLost = new int[1];
response = tag.transceive(data, raw, targetLost);
TransceiveResult transResult = new TransceiveResult(
(response != null) ? true : false,
(targetLost[0] == 1) ? true : false,
response);
return transResult;
}
return null;
}
@Override
public NdefMessage ndefRead(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag != null) {
byte[] buf = tag.read();
if (buf == null)
return null;
/* Create an NdefMessage */
try {
return new NdefMessage(buf);
} catch (FormatException e) {
return null;
}
}
return null;
}
@Override
public int ndefWrite(int nativeHandle, NdefMessage msg) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag == null) {
return ErrorCodes.ERROR_IO;
}
if (tag.write(msg.toByteArray())) {
return ErrorCodes.SUCCESS;
}
else {
return ErrorCodes.ERROR_IO;
}
}
@Override
public int getLastError(int nativeHandle) throws RemoteException {
return(mManager.doGetLastError());
}
@Override
public boolean ndefIsWritable(int nativeHandle) throws RemoteException {
throw new UnsupportedOperationException();
}
@Override
public int ndefMakeReadOnly(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag == null) {
return ErrorCodes.ERROR_IO;
}
if (tag.makeReadonly()) {
return ErrorCodes.SUCCESS;
}
else {
return ErrorCodes.ERROR_IO;
}
}
@Override
public int formatNdef(int nativeHandle, byte[] key) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeNfcTag tag;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the tag in the hmap */
tag = (NativeNfcTag) findObject(nativeHandle);
if (tag == null) {
return ErrorCodes.ERROR_IO;
}
if (tag.formatNdef(key)) {
return ErrorCodes.SUCCESS;
}
else {
return ErrorCodes.ERROR_IO;
}
}
@Override
public void setIsoDepTimeout(int timeout) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
mManager.setIsoDepTimeout(timeout);
}
@Override
public void resetIsoDepTimeout() throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
mManager.resetIsoDepTimeout();
}
};
private final IP2pInitiator mP2pInitiatorService = new IP2pInitiator.Stub() {
@Override
public byte[] getGeneralBytes(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
byte[] buff = device.getGeneralBytes();
if (buff == null)
return null;
return buff;
}
return null;
}
@Override
public int getMode(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
return device.getMode();
}
return ErrorCodes.ERROR_INVALID_PARAM;
}
@Override
public byte[] receive(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
byte[] buff = device.doReceive();
if (buff == null)
return null;
return buff;
}
/* Restart polling loop for notification */
maybeEnableDiscovery();
return null;
}
@Override
public boolean send(int nativeHandle, byte[] data) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return isSuccess;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
isSuccess = device.doSend(data);
}
return isSuccess;
}
};
private final IP2pTarget mP2pTargetService = new IP2pTarget.Stub() {
@Override
public int connect(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
if (device.doConnect()) {
return ErrorCodes.SUCCESS;
}
}
return ErrorCodes.ERROR_CONNECT;
}
@Override
public boolean disconnect(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
boolean isSuccess = false;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return isSuccess;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
if (isSuccess = device.doDisconnect()) {
/* remove the device from the hmap */
unregisterObject(nativeHandle);
/* Restart polling loop for notification */
maybeEnableDiscovery();
}
}
return isSuccess;
}
@Override
public byte[] getGeneralBytes(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
byte[] buff = device.getGeneralBytes();
if (buff == null)
return null;
return buff;
}
return null;
}
@Override
public int getMode(int nativeHandle) throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
return device.getMode();
}
return ErrorCodes.ERROR_INVALID_PARAM;
}
@Override
public byte[] transceive(int nativeHandle, byte[] data)
throws RemoteException {
mContext.enforceCallingOrSelfPermission(NFC_PERM, NFC_PERM_ERROR);
NativeP2pDevice device;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
/* find the device in the hmap */
device = (NativeP2pDevice) findObject(nativeHandle);
if (device != null) {
byte[] buff = device.doTransceive(data);
if (buff == null)
return null;
return buff;
}
return null;
}
};
private INfcSecureElement mSecureElementService = new INfcSecureElement.Stub() {
public int openSecureElementConnection() throws RemoteException {
Log.d(TAG, "openSecureElementConnection");
int handle;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return 0;
}
// Check in an open is already pending
if (mOpenSmxPending) {
return 0;
}
handle = mSecureElement.doOpenSecureElementConnection();
if (handle == 0) {
mOpenSmxPending = false;
} else {
mSecureElementHandle = handle;
/* Start timer */
mTimerOpenSmx = new Timer();
mTimerOpenSmx.schedule(new TimerOpenSecureElement(), 30000);
/* Update state */
isOpened = true;
isClosed = false;
mOpenSmxPending = true;
}
return handle;
}
public int closeSecureElementConnection(int nativeHandle)
throws RemoteException {
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return ErrorCodes.ERROR_NOT_INITIALIZED;
}
// Check if the SE connection is closed
if (isClosed) {
return -1;
}
// Check if the SE connection is opened
if (!isOpened) {
return -1;
}
if (mSecureElement.doDisconnect(nativeHandle)) {
/* Stop timer */
mTimerOpenSmx.cancel();
/* Restart polling loop for notification */
mManager.enableDiscovery(DISCOVERY_MODE_READER);
/* Update state */
isOpened = false;
isClosed = true;
mOpenSmxPending = false;
return ErrorCodes.SUCCESS;
} else {
/* Stop timer */
mTimerOpenSmx.cancel();
/* Restart polling loop for notification */
mManager.enableDiscovery(DISCOVERY_MODE_READER);
/* Update state */
isOpened = false;
isClosed = true;
mOpenSmxPending = false;
return ErrorCodes.ERROR_DISCONNECT;
}
}
public int[] getSecureElementTechList(int nativeHandle)
throws RemoteException {
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
// Check if the SE connection is closed
if (isClosed) {
return null;
}
// Check if the SE connection is opened
if (!isOpened) {
return null;
}
int[] techList = mSecureElement.doGetTechList(nativeHandle);
/* Stop and Restart timer */
mTimerOpenSmx.cancel();
mTimerOpenSmx = new Timer();
mTimerOpenSmx.schedule(new TimerOpenSecureElement(), 30000);
return techList;
}
public byte[] getSecureElementUid(int nativeHandle)
throws RemoteException {
byte[] uid;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
// Check if the SE connection is closed
if (isClosed) {
return null;
}
// Check if the SE connection is opened
if (!isOpened) {
return null;
}
uid = mSecureElement.doGetUid(nativeHandle);
/* Stop and Restart timer */
mTimerOpenSmx.cancel();
mTimerOpenSmx = new Timer();
mTimerOpenSmx.schedule(new TimerOpenSecureElement(), 30000);
return uid;
}
public byte[] exchangeAPDU(int nativeHandle, byte[] data)
throws RemoteException {
byte[] response;
// Check if NFC is enabled
if (!mIsNfcEnabled) {
return null;
}
// Check if the SE connection is closed
if (isClosed) {
return null;
}
// Check if the SE connection is opened
if (!isOpened) {
return null;
}
response = mSecureElement.doTransceive(nativeHandle, data);
/* Stop and Restart timer */
mTimerOpenSmx.cancel();
mTimerOpenSmx = new Timer();
mTimerOpenSmx.schedule(new TimerOpenSecureElement(), 30000);
return response;
}
};
class TimerOpenSecureElement extends TimerTask {
@Override
public void run() {
if (mSecureElementHandle != 0) {
Log.d(TAG, "Open SMX timer expired");
try {
mSecureElementService
.closeSecureElementConnection(mSecureElementHandle);
} catch (RemoteException e) {
}
}
}
}
private boolean _enable(boolean oldEnabledState) {
applyProperties();
boolean isSuccess = mManager.initialize();
if (isSuccess) {
/* Check Secure Element setting */
mNfcSecureElementState = mPrefs.getBoolean(PREF_SECURE_ELEMENT_ON,
SECURE_ELEMENT_ON_DEFAULT);
if (mNfcSecureElementState) {
int secureElementId = mPrefs.getInt(PREF_SECURE_ELEMENT_ID,
SECURE_ELEMENT_ID_DEFAULT);
int[] Se_list = mManager.doGetSecureElementList();
if (Se_list != null) {
for (int i = 0; i < Se_list.length; i++) {
if (Se_list[i] == secureElementId) {
mManager.doSelectSecureElement(Se_list[i]);
mSelectedSeId = Se_list[i];
break;
}
}
}
}
mIsNfcEnabled = true;
/* Start polling loop */
maybeEnableDiscovery();
/* bring up the my tag server */
mNdefPushServer.start();
} else {
mIsNfcEnabled = false;
}
updateNfcOnSetting(oldEnabledState);
return isSuccess;
}
/** Enable active tag discovery if screen is on and NFC is enabled */
private synchronized void maybeEnableDiscovery() {
if (mScreenOn && mIsNfcEnabled) {
mManager.enableDiscovery(DISCOVERY_MODE_READER);
}
}
/** Disable active tag discovery if necessary */
private synchronized void maybeDisableDiscovery() {
if (mIsNfcEnabled) {
mManager.disableDiscovery();
}
}
/** Disconnect any target if present */
private synchronized void maybeDisconnectTarget() {
if (mIsNfcEnabled) {
Iterator<?> iterator = mObjectMap.values().iterator();
while(iterator.hasNext()) {
Object object = iterator.next();
if(object instanceof NativeNfcTag) {
// Disconnect from tags
NativeNfcTag tag = (NativeNfcTag) object;
tag.disconnect();
}
else if(object instanceof NativeP2pDevice) {
// Disconnect from P2P devices
NativeP2pDevice device = (NativeP2pDevice) object;
if (device.getMode() == NativeP2pDevice.MODE_P2P_TARGET) {
// Remote peer is target, request disconnection
device.doDisconnect();
}
else {
// Remote peer is initiator, we cannot disconnect
// Just wait for field removal
}
}
iterator.remove();
}
}
}
private void applyProperties() {
mManager.doSetProperties(PROPERTY_LLCP_LTO, mPrefs.getInt(PREF_LLCP_LTO, LLCP_LTO_DEFAULT));
mManager.doSetProperties(PROPERTY_LLCP_MIU, mPrefs.getInt(PREF_LLCP_MIU, LLCP_MIU_DEFAULT));
mManager.doSetProperties(PROPERTY_LLCP_WKS, mPrefs.getInt(PREF_LLCP_WKS, LLCP_WKS_DEFAULT));
mManager.doSetProperties(PROPERTY_LLCP_OPT, mPrefs.getInt(PREF_LLCP_OPT, LLCP_OPT_DEFAULT));
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_A,
mPrefs.getBoolean(PREF_DISCOVERY_A, DISCOVERY_A_DEFAULT) ? 1 : 0);
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_B,
mPrefs.getBoolean(PREF_DISCOVERY_B, DISCOVERY_B_DEFAULT) ? 1 : 0);
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_F,
mPrefs.getBoolean(PREF_DISCOVERY_F, DISCOVERY_F_DEFAULT) ? 1 : 0);
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_15693,
mPrefs.getBoolean(PREF_DISCOVERY_15693, DISCOVERY_15693_DEFAULT) ? 1 : 0);
mManager.doSetProperties(PROPERTY_NFC_DISCOVERY_NFCIP,
mPrefs.getBoolean(PREF_DISCOVERY_NFCIP, DISCOVERY_NFCIP_DEFAULT) ? 1 : 0);
}
private void updateNfcOnSetting(boolean oldEnabledState) {
mPrefsEditor.putBoolean(PREF_NFC_ON, mIsNfcEnabled);
mPrefsEditor.apply();
synchronized(this) {
if (oldEnabledState != mIsNfcEnabled) {
Intent intent = new Intent(NfcAdapter.ACTION_ADAPTER_STATE_CHANGE);
intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
intent.putExtra(NfcAdapter.EXTRA_NEW_BOOLEAN_STATE, mIsNfcEnabled);
mContext.sendBroadcast(intent);
}
if (mIsNfcEnabled) {
Context context = getApplicationContext();
// Set this to null by default. If there isn't a tag on disk
// or if there was an error reading the tag then this will cause
// the status bar icon to be removed.
NdefMessage myTag = null;
FileInputStream input = null;
try {
input = context.openFileInput(MY_TAG_FILE_NAME);
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
byte[] buffer = new byte[4096];
int read = 0;
while ((read = input.read(buffer)) > 0) {
bytes.write(buffer, 0, read);
}
myTag = new NdefMessage(bytes.toByteArray());
} catch (FileNotFoundException e) {
// Ignore.
} catch (IOException e) {
Log.e(TAG, "Could not read mytag file: ", e);
context.deleteFile(MY_TAG_FILE_NAME);
} catch (FormatException e) {
Log.e(TAG, "Invalid NdefMessage for mytag", e);
context.deleteFile(MY_TAG_FILE_NAME);
} finally {
try {
if (input != null) {
input.close();
}
} catch (IOException e) {
// Ignore
}
}
try {
mNfcAdapter.localSet(myTag);
} catch (RemoteException e) {
// Ignore
}
} else {
sendMessage(MSG_HIDE_MY_TAG_ICON, null);
}
}
}
// Reset all internals
private synchronized void reset() {
// TODO: none of these appear to be synchronized but are
// read/written from different threads (notably Binder threads)...
// Clear tables
mObjectMap.clear();
mSocketMap.clear();
// Reset variables
mIsNfcEnabled = false;
mSelectedSeId = 0;
}
private synchronized Object findObject(int key) {
Object device = null;
device = mObjectMap.get(key);
if (device == null) {
Log.w(TAG, "Handle not found !");
}
return device;
}
synchronized void registerTagObject(NativeNfcTag nativeTag) {
mObjectMap.put(nativeTag.getHandle(), nativeTag);
}
synchronized void unregisterObject(int handle) {
mObjectMap.remove(handle);
}
private synchronized Object findSocket(int key) {
if (mSocketMap == null) {
return null;
}
return mSocketMap.get(key);
}
private void RemoveSocket(int key) {
mSocketMap.remove(key);
}
/** For use by code in this process */
public LlcpSocket createLlcpSocket(int sap, int miu, int rw, int linearBufferLength) {
try {
int handle = mNfcAdapter.createLlcpSocket(sap, miu, rw, linearBufferLength);
if (ErrorCodes.isError(handle)) {
Log.e(TAG, "unable to create socket: " + ErrorCodes.asString(handle));
return null;
}
return new LlcpSocket(mLlcpSocket, handle);
} catch (RemoteException e) {
// This will never happen since the code is calling into it's own process
throw new IllegalStateException("unable to talk to myself", e);
}
}
/** For use by code in this process */
public LlcpServiceSocket createLlcpServiceSocket(int sap, String sn, int miu, int rw,
int linearBufferLength) {
try {
int handle = mNfcAdapter.createLlcpServiceSocket(sap, sn, miu, rw, linearBufferLength);
if (ErrorCodes.isError(handle)) {
Log.e(TAG, "unable to create socket: " + ErrorCodes.asString(handle));
return null;
}
return new LlcpServiceSocket(mLlcpServerSocketService, mLlcpSocket, handle);
} catch (RemoteException e) {
// This will never happen since the code is calling into it's own process
throw new IllegalStateException("unable to talk to myself", e);
}
}
private void activateLlcpLink() {
/* Broadcast Intent Link LLCP activated */
Intent LlcpLinkIntent = new Intent();
LlcpLinkIntent.setAction(NfcAdapter.ACTION_LLCP_LINK_STATE_CHANGED);
LlcpLinkIntent.putExtra(NfcAdapter.EXTRA_LLCP_LINK_STATE_CHANGED,
NfcAdapter.LLCP_LINK_STATE_ACTIVATED);
if (DBG) Log.d(TAG, "Broadcasting LLCP activation");
mContext.sendOrderedBroadcast(LlcpLinkIntent, NFC_PERM);
}
public void sendMockNdefTag(NdefMessage msg) {
sendMessage(MSG_MOCK_NDEF, msg);
}
void sendMessage(int what, Object obj) {
Message msg = mHandler.obtainMessage();
msg.what = what;
msg.obj = obj;
mHandler.sendMessage(msg);
}
final class NfcServiceHandler extends Handler {
public NdefMessage[] findAndReadNdef(NativeNfcTag nativeTag) {
// Try to find NDEF on any of the technologies.
int[] technologies = nativeTag.getTechList();
int[] handles = nativeTag.getHandleList();
int techIndex = 0;
int lastHandleScanned = 0;
boolean ndefFoundAndConnected = false;
NdefMessage[] ndefMsgs = null;
boolean foundFormattable = false;
int formattableHandle = 0;
int formattableTechnology = 0;
while ((!ndefFoundAndConnected) && (techIndex < technologies.length)) {
if (handles[techIndex] != lastHandleScanned) {
// We haven't seen this handle yet, connect and checkndef
if (nativeTag.connect(technologies[techIndex])) {
// Check if this type is NDEF formatable
if (!foundFormattable) {
if (nativeTag.isNdefFormatable()) {
foundFormattable = true;
formattableHandle = nativeTag.getConnectedHandle();
formattableTechnology = nativeTag.getConnectedTechnology();
// We'll only add formattable tech if no ndef is
// found - this is because libNFC refuses to format
// an already NDEF formatted tag.
}
nativeTag.reconnect();
} // else, already found formattable technology
int[] ndefinfo = new int[2];
if (nativeTag.checkNdef(ndefinfo)) {
ndefFoundAndConnected = true;
boolean generateEmptyNdef = false;
int supportedNdefLength = ndefinfo[0];
int cardState = ndefinfo[1];
byte[] buff = nativeTag.read();
if (buff != null) {
ndefMsgs = new NdefMessage[1];
try {
ndefMsgs[0] = new NdefMessage(buff);
nativeTag.addNdefTechnology(ndefMsgs[0],
nativeTag.getConnectedHandle(),
nativeTag.getConnectedLibNfcType(),
nativeTag.getConnectedTechnology(),
supportedNdefLength, cardState);
nativeTag.reconnect();
} catch (FormatException e) {
// Create an intent anyway, without NDEF messages
generateEmptyNdef = true;
}
} else {
generateEmptyNdef = true;
}
if (generateEmptyNdef) {
ndefMsgs = new NdefMessage[] { };
nativeTag.addNdefTechnology(null,
nativeTag.getConnectedHandle(),
nativeTag.getConnectedLibNfcType(),
nativeTag.getConnectedTechnology(),
supportedNdefLength, cardState);
nativeTag.reconnect();
}
} // else, no NDEF on this tech, continue loop
} else {
// Connect failed, tag maybe lost. Try next handle
// anyway.
}
}
lastHandleScanned = handles[techIndex];
techIndex++;
}
if (ndefMsgs == null && foundFormattable) {
// Tag is not NDEF yet, and found a formattable target,
// so add formattable tech to tech list.
nativeTag.addNdefFormatableTechnology(
formattableHandle,
formattableTechnology);
}
return ndefMsgs;
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_MOCK_NDEF: {
NdefMessage ndefMsg = (NdefMessage) msg.obj;
Tag tag = Tag.createMockTag(new byte[] { 0x00 },
new int[] { },
new Bundle[] { });
Log.d(TAG, "mock NDEF tag, starting corresponding activity");
Log.d(TAG, tag.toString());
dispatchTag(tag, new NdefMessage[] { ndefMsg });
break;
}
case MSG_NDEF_TAG:
if (DBG) Log.d(TAG, "Tag detected, notifying applications");
NativeNfcTag nativeTag = (NativeNfcTag) msg.obj;
NdefMessage[] ndefMsgs = findAndReadNdef(nativeTag);
if (ndefMsgs != null) {
nativeTag.startPresenceChecking();
dispatchNativeTag(nativeTag, ndefMsgs);
} else {
// No ndef found or connect failed, just try to reconnect and dispatch
if (nativeTag.reconnect()) {
nativeTag.startPresenceChecking();
dispatchNativeTag(nativeTag, null);
} else {
Log.w(TAG, "Failed to connect to tag");
nativeTag.disconnect();
}
}
break;
case MSG_CARD_EMULATION:
if (DBG) Log.d(TAG, "Card Emulation message");
byte[] aid = (byte[]) msg.obj;
/* Send broadcast ordered */
Intent TransactionIntent = new Intent();
TransactionIntent.setAction(NfcAdapter.ACTION_TRANSACTION_DETECTED);
TransactionIntent.putExtra(NfcAdapter.EXTRA_AID, aid);
if (DBG) Log.d(TAG, "Broadcasting Card Emulation event");
mContext.sendOrderedBroadcast(TransactionIntent, NFC_PERM);
break;
case MSG_LLCP_LINK_ACTIVATION:
NativeP2pDevice device = (NativeP2pDevice) msg.obj;
Log.d(TAG, "LLCP Activation message");
if (device.getMode() == NativeP2pDevice.MODE_P2P_TARGET) {
if (DBG) Log.d(TAG, "NativeP2pDevice.MODE_P2P_TARGET");
if (device.doConnect()) {
/* Check Llcp compliancy */
if (mManager.doCheckLlcp()) {
/* Activate Llcp Link */
if (mManager.doActivateLlcp()) {
if (DBG) Log.d(TAG, "Initiator Activate LLCP OK");
// Register P2P device
mObjectMap.put(device.getHandle(), device);
activateLlcpLink();
} else {
/* should not happen */
Log.w(TAG, "Initiator Activate LLCP NOK. Disconnect.");
device.doDisconnect();
}
} else {
if (DBG) Log.d(TAG, "Remote Target does not support LLCP. Disconnect.");
device.doDisconnect();
}
} else {
if (DBG) Log.d(TAG, "Cannot connect remote Target. Polling loop restarted...");
/* The polling loop should have been restarted in failing doConnect */
}
} else if (device.getMode() == NativeP2pDevice.MODE_P2P_INITIATOR) {
if (DBG) Log.d(TAG, "NativeP2pDevice.MODE_P2P_INITIATOR");
/* Check Llcp compliancy */
if (mManager.doCheckLlcp()) {
/* Activate Llcp Link */
if (mManager.doActivateLlcp()) {
if (DBG) Log.d(TAG, "Target Activate LLCP OK");
// Register P2P device
mObjectMap.put(device.getHandle(), device);
activateLlcpLink();
}
} else {
Log.w(TAG, "checkLlcp failed");
}
}
break;
case MSG_LLCP_LINK_DEACTIVATED:
device = (NativeP2pDevice) msg.obj;
Log.d(TAG, "LLCP Link Deactivated message. Restart polling loop.");
synchronized (NfcService.this) {
/* Check if the device has been already unregistered */
if (mObjectMap.remove(device.getHandle()) != null) {
/* Disconnect if we are initiator */
if (device.getMode() == NativeP2pDevice.MODE_P2P_TARGET) {
if (DBG) Log.d(TAG, "disconnecting from target");
/* Restart polling loop */
device.doDisconnect();
} else {
if (DBG) Log.d(TAG, "not disconnecting from initiator");
}
}
}
/* Broadcast Intent Link LLCP activated */
Intent LlcpLinkIntent = new Intent();
LlcpLinkIntent.setAction(NfcAdapter.ACTION_LLCP_LINK_STATE_CHANGED);
LlcpLinkIntent.putExtra(NfcAdapter.EXTRA_LLCP_LINK_STATE_CHANGED,
NfcAdapter.LLCP_LINK_STATE_DEACTIVATED);
if (DBG) Log.d(TAG, "Broadcasting LLCP deactivation");
mContext.sendOrderedBroadcast(LlcpLinkIntent, NFC_PERM);
break;
case MSG_TARGET_DESELECTED:
/* Broadcast Intent Target Deselected */
if (DBG) Log.d(TAG, "Target Deselected");
Intent TargetDeselectedIntent = new Intent();
TargetDeselectedIntent.setAction(mManager.INTERNAL_TARGET_DESELECTED_ACTION);
if (DBG) Log.d(TAG, "Broadcasting Intent");
mContext.sendOrderedBroadcast(TargetDeselectedIntent, NFC_PERM);
break;
case MSG_SHOW_MY_TAG_ICON: {
StatusBarManager sb = (StatusBarManager) getSystemService(
Context.STATUS_BAR_SERVICE);
sb.setIcon("nfc", R.drawable.stat_sys_nfc, 0);
break;
}
case MSG_HIDE_MY_TAG_ICON: {
StatusBarManager sb = (StatusBarManager) getSystemService(
Context.STATUS_BAR_SERVICE);
sb.removeIcon("nfc");
break;
}
case MSG_SE_FIELD_ACTIVATED:{
if (DBG) Log.d(TAG, "SE FIELD ACTIVATED");
Intent eventFieldOnIntent = new Intent();
eventFieldOnIntent.setAction(NfcAdapter.ACTION_RF_FIELD_ON_DETECTED);
if (DBG) Log.d(TAG, "Broadcasting Intent");
mContext.sendBroadcast(eventFieldOnIntent, NFC_PERM);
break;
}
case MSG_SE_FIELD_DEACTIVATED:{
if (DBG) Log.d(TAG, "SE FIELD DEACTIVATED");
Intent eventFieldOffIntent = new Intent();
eventFieldOffIntent.setAction(NfcAdapter.ACTION_RF_FIELD_OFF_DETECTED);
if (DBG) Log.d(TAG, "Broadcasting Intent");
mContext.sendBroadcast(eventFieldOffIntent, NFC_PERM);
break;
}
default:
Log.e(TAG, "Unknown message received");
break;
}
}
private Intent buildTagIntent(Tag tag, NdefMessage[] msgs, String action) {
Intent intent = new Intent(action);
intent.putExtra(NfcAdapter.EXTRA_TAG, tag);
intent.putExtra(NfcAdapter.EXTRA_ID, tag.getId());
intent.putExtra(NfcAdapter.EXTRA_NDEF_MESSAGES, msgs);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
return intent;
}
private void dispatchNativeTag(NativeNfcTag nativeTag, NdefMessage[] msgs) {
Tag tag = new Tag(nativeTag.getUid(), nativeTag.getTechList(),
nativeTag.getTechExtras(), nativeTag.getHandle(), mNfcTagService);
if (dispatchTag(tag, msgs)) {
registerTagObject(nativeTag);
} else {
nativeTag.disconnect();
}
}
public byte[] concat(byte[]... arrays) {
int length = 0;
for (byte[] array : arrays) {
length += array.length;
}
byte[] result = new byte[length];
int pos = 0;
for (byte[] array : arrays) {
System.arraycopy(array, 0, result, pos, array.length);
pos += array.length;
}
return result;
}
private Uri parseWellKnownUriRecord(NdefRecord record) {
byte[] payload = record.getPayload();
/*
* payload[0] contains the URI Identifier Code, per the
* NFC Forum "URI Record Type Definition" section 3.2.2.
*
* payload[1]...payload[payload.length - 1] contains the rest of
* the URI.
*/
String prefix = URI_PREFIX_MAP[(payload[0] & 0xff)];
byte[] fullUri = concat(prefix.getBytes(Charsets.UTF_8),
Arrays.copyOfRange(payload, 1, payload.length));
return Uri.parse(new String(fullUri, Charsets.UTF_8));
}
private boolean setTypeOrDataFromNdef(Intent intent, NdefRecord record) {
short tnf = record.getTnf();
byte[] type = record.getType();
try {
switch (tnf) {
case NdefRecord.TNF_MIME_MEDIA: {
intent.setType(new String(type, Charsets.US_ASCII));
return true;
}
case NdefRecord.TNF_ABSOLUTE_URI: {
intent.setData(Uri.parse(new String(record.getPayload(), Charsets.UTF_8)));
return true;
}
case NdefRecord.TNF_WELL_KNOWN: {
byte[] payload = record.getPayload();
if (payload == null || payload.length == 0) return false;
if (Arrays.equals(type, NdefRecord.RTD_TEXT)) {
intent.setType("text/plain");
return true;
} else if (Arrays.equals(type, NdefRecord.RTD_SMART_POSTER)) {
// Parse the smart poster looking for the URI
try {
NdefMessage msg = new NdefMessage(record.getPayload());
for (NdefRecord subRecord : msg.getRecords()) {
short subTnf = subRecord.getTnf();
if (subTnf == NdefRecord.TNF_WELL_KNOWN
&& Arrays.equals(subRecord.getType(),
NdefRecord.RTD_URI)) {
intent.setData(parseWellKnownUriRecord(subRecord));
return true;
} else if (subTnf == NdefRecord.TNF_ABSOLUTE_URI) {
intent.setData(Uri.parse(new String(subRecord.getPayload(),
Charsets.UTF_8)));
return true;
}
}
} catch (FormatException e) {
return false;
}
} else if (Arrays.equals(type, NdefRecord.RTD_URI)) {
intent.setData(parseWellKnownUriRecord(record));
return true;
}
return false;
}
}
return false;
} catch (Exception e) {
Log.e(TAG, "failed to parse record", e);
return false;
}
}
/** Returns false if no activities were found to dispatch to */
private boolean dispatchTag(Tag tag, NdefMessage[] msgs) {
if (DBG) {
Log.d(TAG, "Dispatching tag");
Log.d(TAG, tag.toString());
}
IntentFilter[] overrideFilters;
PendingIntent overrideIntent;
String[][] overrideTechLists;
boolean foregroundNdefPush = mNdefPushClient.getForegroundMessage() != null;
synchronized (mNfcAdapter) {
overrideFilters = mDispatchOverrideFilters;
overrideIntent = mDispatchOverrideIntent;
overrideTechLists = mDispatchOverrideTechLists;
}
// First look for dispatch overrides
if (overrideIntent != null) {
if (DBG) Log.d(TAG, "Attempting to dispatch tag with override");
try {
if (dispatchTagInternal(tag, msgs, overrideIntent, overrideFilters,
overrideTechLists)) {
if (DBG) Log.d(TAG, "Dispatched to override");
return true;
}
Log.w(TAG, "Dispatch override registered, but no filters matched");
} catch (CanceledException e) {
Log.w(TAG, "Dispatch overrides pending intent was canceled");
synchronized (mNfcAdapter) {
mDispatchOverrideFilters = null;
mDispatchOverrideIntent = null;
mDispatchOverrideTechLists = null;
}
}
}
// If there is not foreground NDEF push setup try a normal dispatch.
//
// This is avoided when disabled in the NDEF push case to avoid the situation where each
// user has a different app in the foreground, causing each to launch itself on the
// remote device and the apps swapping which is in the foreground on each phone.
if (!foregroundNdefPush) {
try {
return dispatchTagInternal(tag, msgs, null, null, null);
} catch (CanceledException e) {
Log.e(TAG, "CanceledException unexpected here", e);
return false;
}
}
return false;
}
/** Returns true if the tech list filter matches the techs on the tag */
private boolean filterMatch(String[] tagTechs, String[] filterTechs) {
if (filterTechs == null || filterTechs.length == 0) return false;
for (String tech : filterTechs) {
if (Arrays.binarySearch(tagTechs, tech) < 0) {
return false;
}
}
return true;
}
// Dispatch to either an override pending intent or a standard startActivity()
private boolean dispatchTagInternal(Tag tag, NdefMessage[] msgs,
PendingIntent overrideIntent, IntentFilter[] overrideFilters,
String[][] overrideTechLists)
throws CanceledException{
Intent intent;
//
// Try the NDEF content specific dispatch
//
if (msgs != null && msgs.length > 0) {
NdefMessage msg = msgs[0];
NdefRecord[] records = msg.getRecords();
if (records.length > 0) {
// Found valid NDEF data, try to dispatch that first
NdefRecord record = records[0];
intent = buildTagIntent(tag, msgs, NfcAdapter.ACTION_NDEF_DISCOVERED);
if (setTypeOrDataFromNdef(intent, record)) {
// The record contains filterable data, try to start a matching activity
if (startDispatchActivity(intent, overrideIntent, overrideFilters,
overrideTechLists)) {
// If an activity is found then skip further dispatching
return true;
} else {
if (DBG) Log.d(TAG, "No activities for NDEF handling of " + intent);
}
}
}
}
//
// Try the technology specific dispatch
//
String[] tagTechs = tag.getTechList();
Arrays.sort(tagTechs);
if (overrideIntent != null) {
// There are dispatch overrides in place
if (overrideTechLists != null) {
for (String[] filterTechs : overrideTechLists) {
if (filterMatch(tagTechs, filterTechs)) {
// An override matched, send it to the foreground activity.
intent = buildTagIntent(tag, msgs,
NfcAdapter.ACTION_TECHNOLOGY_DISCOVERED);
overrideIntent.send(mContext, Activity.RESULT_OK, intent);
return true;
}
}
}
} else {
// Standard tech dispatch path
ArrayList<ResolveInfo> matches = new ArrayList<ResolveInfo>();
ArrayList<ComponentInfo> registered = mTechListFilters.getComponents();
// Check each registered activity to see if it matches
for (ComponentInfo info : registered) {
// Don't allow wild card matching
if (filterMatch(tagTechs, info.techs)) {
// Add the activity as a match if it's not already in the list
if (!matches.contains(info.resolveInfo)) {
matches.add(info.resolveInfo);
}
}
}
if (matches.size() == 1) {
// Single match, launch directly
intent = buildTagIntent(tag, msgs, NfcAdapter.ACTION_TECHNOLOGY_DISCOVERED);
ResolveInfo info = matches.get(0);
intent.setClassName(info.activityInfo.packageName, info.activityInfo.name);
try {
mContext.startActivity(intent);
return true;
} catch (ActivityNotFoundException e) {
if (DBG) Log.w(TAG, "No activities for technology handling of " + intent);
}
} else if (matches.size() > 1) {
// Multiple matches, show a custom activity chooser dialog
intent = new Intent(mContext, TechListChooserActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra(Intent.EXTRA_INTENT,
buildTagIntent(tag, msgs, NfcAdapter.ACTION_TECHNOLOGY_DISCOVERED));
intent.putParcelableArrayListExtra(TechListChooserActivity.EXTRA_RESOLVE_INFOS,
matches);
try {
mContext.startActivity(intent);
return true;
} catch (ActivityNotFoundException e) {
if (DBG) Log.w(TAG, "No activities for technology handling of " + intent);
}
} else {
// No matches, move on
if (DBG) Log.w(TAG, "No activities for technology handling of " + intent);
}
}
//
// Try the generic intent
//
intent = buildTagIntent(tag, msgs, NfcAdapter.ACTION_TAG_DISCOVERED);
if (startDispatchActivity(intent, overrideIntent, overrideFilters, overrideTechLists)) {
return true;
} else {
Log.e(TAG, "No tag fallback activity found for " + intent);
return false;
}
}
private boolean startDispatchActivity(Intent intent, PendingIntent overrideIntent,
IntentFilter[] overrideFilters, String[][] overrideTechLists)
throws CanceledException {
if (overrideIntent != null) {
boolean found = false;
if (overrideFilters == null && overrideTechLists == null) {
// No filters means to always dispatch regardless of match
found = true;
} else if (overrideFilters != null) {
for (IntentFilter filter : overrideFilters) {
if (filter.match(mContext.getContentResolver(), intent, false, TAG) >= 0) {
found = true;
break;
}
}
}
if (found) {
Log.i(TAG, "Dispatching to override intent " + overrideIntent);
overrideIntent.send(mContext, Activity.RESULT_OK, intent);
return true;
} else {
return false;
}
} else {
try {
// If the current app called stopAppSwitches() then our startActivity()
// can be delayed for several seconds. This happens with the default home
// screen. As a system service we can override this behavior with
// resumeAppSwitches()
mIActivityManager.resumeAppSwitches();
} catch (RemoteException e) { }
try {
mContext.startActivity(intent);
return true;
} catch (ActivityNotFoundException e) {
return false;
}
}
}
}
private NfcServiceHandler mHandler = new NfcServiceHandler();
private class EnableDisableDiscoveryTask extends AsyncTask<Boolean, Void, Void> {
@Override
protected Void doInBackground(Boolean... enable) {
if (enable != null && enable.length > 0 && enable[0]) {
synchronized (NfcService.this) {
mScreenOn = true;
maybeEnableDiscovery();
}
} else {
mWakeLock.acquire();
synchronized (NfcService.this) {
mScreenOn = false;
maybeDisableDiscovery();
maybeDisconnectTarget();
}
mWakeLock.release();
}
return null;
}
}
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(
NativeNfcManager.INTERNAL_TARGET_DESELECTED_ACTION)) {
if (DBG) Log.d(TAG, "INERNAL_TARGET_DESELECTED_ACTION");
/* Restart polling loop for notification */
maybeEnableDiscovery();
} else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
// Perform discovery enable in thread to protect against ANR when the
// NFC stack wedges. This is *not* the correct way to fix this issue -
// configuration of the local NFC adapter should be very quick and should
// be safe on the main thread, and the NFC stack should not wedge.
new EnableDisableDiscoveryTask().execute(new Boolean(true));
} else if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
// Perform discovery disable in thread to protect against ANR when the
// NFC stack wedges. This is *not* the correct way to fix this issue -
// configuration of the local NFC adapter should be very quick and should
// be safe on the main thread, and the NFC stack should not wedge.
new EnableDisableDiscoveryTask().execute(new Boolean(false));
}
}
};
}