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/*
* Copyright (C) 2006 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.dialer.dialpadview;
import android.Manifest;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.DialogFragment;
import android.app.KeyguardManager;
import android.app.ProgressDialog;
import android.content.ActivityNotFoundException;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.Color;
import android.net.Uri;
import android.provider.Settings;
import android.support.annotation.Nullable;
import android.telecom.PhoneAccount;
import android.telecom.PhoneAccountHandle;
import android.telephony.PhoneNumberUtils;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.view.WindowManager;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import com.android.common.io.MoreCloseables;
import com.android.contacts.common.database.NoNullCursorAsyncQueryHandler;
import com.android.contacts.common.util.ContactDisplayUtils;
import com.android.contacts.common.widget.SelectPhoneAccountDialogFragment;
import com.android.contacts.common.widget.SelectPhoneAccountDialogFragment.SelectPhoneAccountListener;
import com.android.contacts.common.widget.SelectPhoneAccountDialogOptionsUtil;
import com.android.dialer.R;
import com.android.dialer.common.Assert;
import com.android.dialer.common.LogUtil;
import com.android.dialer.compat.telephony.TelephonyManagerCompat;
import com.android.dialer.oem.MotorolaUtils;
import com.android.dialer.oem.TranssionUtils;
import com.android.dialer.telecom.TelecomUtil;
import com.android.dialer.util.PermissionsUtil;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
/**
* Helper class to listen for some magic character sequences that are handled specially by Dialer.
*/
public class SpecialCharSequenceMgr {
private static final String TAG_SELECT_ACCT_FRAGMENT = "tag_select_acct_fragment";
private static final String MMI_IMEI_DISPLAY = "*#06#";
private static final String MMI_REGULATORY_INFO_DISPLAY = "*#07#";
/** ***** This code is used to handle SIM Contact queries ***** */
private static final String ADN_PHONE_NUMBER_COLUMN_NAME = "number";
private static final String ADN_NAME_COLUMN_NAME = "name";
private static final int ADN_QUERY_TOKEN = -1;
/**
* Remembers the previous {@link QueryHandler} and cancel the operation when needed, to prevent
* possible crash.
*
* <p>QueryHandler may call {@link ProgressDialog#dismiss()} when the screen is already gone,
* which will cause the app crash. This variable enables the class to prevent the crash on {@link
* #cleanup()}.
*
* <p>TODO: Remove this and replace it (and {@link #cleanup()}) with better implementation. One
* complication is that we have SpecialCharSequenceMgr in Phone package too, which has *slightly*
* different implementation. Note that Phone package doesn't have this problem, so the class on
* Phone side doesn't have this functionality. Fundamental fix would be to have one shared
* implementation and resolve this corner case more gracefully.
*/
private static QueryHandler previousAdnQueryHandler;
/** This class is never instantiated. */
private SpecialCharSequenceMgr() {}
public static boolean handleChars(Context context, String input, EditText textField) {
// get rid of the separators so that the string gets parsed correctly
String dialString = PhoneNumberUtils.stripSeparators(input);
if (handleDeviceIdDisplay(context, dialString)
|| handleRegulatoryInfoDisplay(context, dialString)
|| handlePinEntry(context, dialString)
|| handleAdnEntry(context, dialString, textField)
|| handleSecretCode(context, dialString)) {
return true;
}
if (MotorolaUtils.handleSpecialCharSequence(context, input)) {
return true;
}
return false;
}
/**
* Cleanup everything around this class. Must be run inside the main thread.
*
* <p>This should be called when the screen becomes background.
*/
public static void cleanup() {
Assert.isMainThread();
if (previousAdnQueryHandler != null) {
previousAdnQueryHandler.cancel();
previousAdnQueryHandler = null;
}
}
/**
* Handles secret codes to launch arbitrary activities in the form of
* *#*#<code>#*#* or *#<code_starting_with_number>#.
*
* @param context the context to use
* @param input the text to check for a secret code in
* @return true if a secret code was encountered and handled
*/
static boolean handleSecretCode(Context context, String input) {
// Secret code specific to OEMs should be handled first.
if (TranssionUtils.isTranssionSecretCode(input)) {
TranssionUtils.handleTranssionSecretCode(context, input);
return true;
}
// Secret codes are accessed by dialing *#*#<code>#*#* or "*#<code_starting_with_number>#"
if (input.length() > 8 && input.startsWith("*#*#") && input.endsWith("#*#*")) {
String secretCode = input.substring(4, input.length() - 4);
TelephonyManagerCompat.handleSecretCode(context, secretCode);
return true;
}
return false;
}
/**
* Handle ADN requests by filling in the SIM contact number into the requested EditText.
*
* <p>This code works alongside the Asynchronous query handler {@link QueryHandler} and query
* cancel handler implemented in {@link SimContactQueryCookie}.
*/
static boolean handleAdnEntry(Context context, String input, EditText textField) {
/* ADN entries are of the form "N(N)(N)#" */
TelephonyManager telephonyManager =
(TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
if (telephonyManager == null
|| telephonyManager.getPhoneType() != TelephonyManager.PHONE_TYPE_GSM) {
return false;
}
// if the phone is keyguard-restricted, then just ignore this
// input. We want to make sure that sim card contacts are NOT
// exposed unless the phone is unlocked, and this code can be
// accessed from the emergency dialer.
KeyguardManager keyguardManager =
(KeyguardManager) context.getSystemService(Context.KEYGUARD_SERVICE);
if (keyguardManager.inKeyguardRestrictedInputMode()) {
return false;
}
int len = input.length();
if ((len > 1) && (len < 5) && (input.endsWith("#"))) {
try {
// get the ordinal number of the sim contact
final int index = Integer.parseInt(input.substring(0, len - 1));
// The original code that navigated to a SIM Contacts list view did not
// highlight the requested contact correctly, a requirement for PTCRB
// certification. This behaviour is consistent with the UI paradigm
// for touch-enabled lists, so it does not make sense to try to work
// around it. Instead we fill in the the requested phone number into
// the dialer text field.
// create the async query handler
final QueryHandler handler = new QueryHandler(context.getContentResolver());
// create the cookie object
final SimContactQueryCookie sc =
new SimContactQueryCookie(index - 1, handler, ADN_QUERY_TOKEN);
// setup the cookie fields
sc.contactNum = index - 1;
sc.setTextField(textField);
// create the progress dialog
sc.progressDialog = new ProgressDialog(context);
sc.progressDialog.setTitle(R.string.simContacts_title);
sc.progressDialog.setMessage(context.getText(R.string.simContacts_emptyLoading));
sc.progressDialog.setIndeterminate(true);
sc.progressDialog.setCancelable(true);
sc.progressDialog.setOnCancelListener(sc);
sc.progressDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND);
List<PhoneAccountHandle> subscriptionAccountHandles =
TelecomUtil.getSubscriptionPhoneAccounts(context);
Context applicationContext = context.getApplicationContext();
boolean hasUserSelectedDefault =
subscriptionAccountHandles.contains(
TelecomUtil.getDefaultOutgoingPhoneAccount(
applicationContext, PhoneAccount.SCHEME_TEL));
if (subscriptionAccountHandles.size() <= 1 || hasUserSelectedDefault) {
Uri uri = TelecomUtil.getAdnUriForPhoneAccount(applicationContext, null);
handleAdnQuery(handler, sc, uri);
} else {
SelectPhoneAccountListener callback =
new HandleAdnEntryAccountSelectedCallback(applicationContext, handler, sc);
DialogFragment dialogFragment =
SelectPhoneAccountDialogFragment.newInstance(
SelectPhoneAccountDialogOptionsUtil.builderWithAccounts(
subscriptionAccountHandles)
.build(),
callback);
dialogFragment.show(((Activity) context).getFragmentManager(), TAG_SELECT_ACCT_FRAGMENT);
}
return true;
} catch (NumberFormatException ex) {
// Ignore
}
}
return false;
}
private static void handleAdnQuery(QueryHandler handler, SimContactQueryCookie cookie, Uri uri) {
if (handler == null || cookie == null || uri == null) {
LogUtil.w("SpecialCharSequenceMgr.handleAdnQuery", "queryAdn parameters incorrect");
return;
}
// display the progress dialog
cookie.progressDialog.show();
// run the query.
handler.startQuery(
ADN_QUERY_TOKEN,
cookie,
uri,
new String[] {ADN_PHONE_NUMBER_COLUMN_NAME},
null,
null,
null);
if (previousAdnQueryHandler != null) {
// It is harmless to call cancel() even after the handler's gone.
previousAdnQueryHandler.cancel();
}
previousAdnQueryHandler = handler;
}
static boolean handlePinEntry(final Context context, final String input) {
if ((input.startsWith("**04") || input.startsWith("**05")) && input.endsWith("#")) {
List<PhoneAccountHandle> subscriptionAccountHandles =
TelecomUtil.getSubscriptionPhoneAccounts(context);
boolean hasUserSelectedDefault =
subscriptionAccountHandles.contains(
TelecomUtil.getDefaultOutgoingPhoneAccount(context, PhoneAccount.SCHEME_TEL));
if (subscriptionAccountHandles.size() <= 1 || hasUserSelectedDefault) {
// Don't bring up the dialog for single-SIM or if the default outgoing account is
// a subscription account.
return TelecomUtil.handleMmi(context, input, null);
} else {
SelectPhoneAccountListener listener = new HandleMmiAccountSelectedCallback(context, input);
DialogFragment dialogFragment =
SelectPhoneAccountDialogFragment.newInstance(
SelectPhoneAccountDialogOptionsUtil.builderWithAccounts(subscriptionAccountHandles)
.build(),
listener);
dialogFragment.show(((Activity) context).getFragmentManager(), TAG_SELECT_ACCT_FRAGMENT);
}
return true;
}
return false;
}
// TODO: Use TelephonyCapabilities.getDeviceIdLabel() to get the device id label instead of a
// hard-coded string.
@SuppressLint("HardwareIds")
static boolean handleDeviceIdDisplay(Context context, String input) {
if (!PermissionsUtil.hasPermission(context, Manifest.permission.READ_PHONE_STATE)) {
return false;
}
TelephonyManager telephonyManager =
(TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
if (telephonyManager != null && input.equals(MMI_IMEI_DISPLAY)) {
int labelResId =
(telephonyManager.getPhoneType() == TelephonyManager.PHONE_TYPE_GSM)
? R.string.imei
: R.string.meid;
View customView = LayoutInflater.from(context).inflate(R.layout.dialog_deviceids, null);
ViewGroup holder = customView.findViewById(R.id.deviceids_holder);
if (TelephonyManagerCompat.getPhoneCount(telephonyManager) > 1) {
for (int slot = 0; slot < telephonyManager.getPhoneCount(); slot++) {
String deviceId = telephonyManager.getDeviceId(slot);
if (!TextUtils.isEmpty(deviceId)) {
addDeviceIdRow(
holder,
deviceId,
/* showDecimal */
context.getResources().getBoolean(R.bool.show_device_id_in_hex_and_decimal),
/* showBarcode */ false);
}
}
} else {
addDeviceIdRow(
holder,
telephonyManager.getDeviceId(),
/* showDecimal */
context.getResources().getBoolean(R.bool.show_device_id_in_hex_and_decimal),
/* showBarcode */
context.getResources().getBoolean(R.bool.show_device_id_as_barcode));
}
new AlertDialog.Builder(context)
.setTitle(labelResId)
.setView(customView)
.setPositiveButton(android.R.string.ok, null)
.setCancelable(false)
.show()
.getWindow()
.setLayout(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
return true;
}
return false;
}
private static void addDeviceIdRow(
ViewGroup holder, String deviceId, boolean showDecimal, boolean showBarcode) {
if (TextUtils.isEmpty(deviceId)) {
return;
}
ViewGroup row =
(ViewGroup)
LayoutInflater.from(holder.getContext()).inflate(R.layout.row_deviceid, holder, false);
holder.addView(row);
// Remove the check digit, if exists. This digit is a checksum of the ID.
// See https://en.wikipedia.org/wiki/International_Mobile_Equipment_Identity
// and https://en.wikipedia.org/wiki/Mobile_equipment_identifier
String hex = deviceId.length() == 15 ? deviceId.substring(0, 14) : deviceId;
// If this is the valid length IMEI or MEID (14 digits), show it in all formats, otherwise fall
// back to just showing the raw hex
if (hex.length() == 14 && showDecimal) {
((TextView) row.findViewById(R.id.deviceid_hex)).setText(hex);
((TextView) row.findViewById(R.id.deviceid_dec)).setText(getDecimalFromHex(hex));
row.findViewById(R.id.deviceid_dec_label).setVisibility(View.VISIBLE);
} else {
row.findViewById(R.id.deviceid_hex_label).setVisibility(View.GONE);
((TextView) row.findViewById(R.id.deviceid_hex)).setText(deviceId);
}
final ImageView barcode = row.findViewById(R.id.deviceid_barcode);
if (showBarcode) {
// Wait until the layout pass has completed so we the barcode is measured before drawing. We
// do this by adding a layout listener and setting the bitmap after getting the callback.
barcode
.getViewTreeObserver()
.addOnGlobalLayoutListener(
new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
barcode.getViewTreeObserver().removeOnGlobalLayoutListener(this);
Bitmap barcodeBitmap =
generateBarcode(hex, barcode.getWidth(), barcode.getHeight());
if (barcodeBitmap != null) {
barcode.setImageBitmap(barcodeBitmap);
}
}
});
} else {
barcode.setVisibility(View.GONE);
}
}
private static String getDecimalFromHex(String hex) {
final String part1 = hex.substring(0, 8);
final String part2 = hex.substring(8);
long dec1;
try {
dec1 = Long.parseLong(part1, 16);
} catch (NumberFormatException e) {
LogUtil.e("SpecialCharSequenceMgr.getDecimalFromHex", "unable to parse hex", e);
return "";
}
final String manufacturerCode = String.format(Locale.US, "%010d", dec1);
long dec2;
try {
dec2 = Long.parseLong(part2, 16);
} catch (NumberFormatException e) {
LogUtil.e("SpecialCharSequenceMgr.getDecimalFromHex", "unable to parse hex", e);
return "";
}
final String serialNum = String.format(Locale.US, "%08d", dec2);
StringBuilder builder = new StringBuilder(22);
builder
.append(manufacturerCode, 0, 5)
.append(' ')
.append(manufacturerCode, 5, manufacturerCode.length())
.append(' ')
.append(serialNum, 0, 4)
.append(' ')
.append(serialNum, 4, serialNum.length());
return builder.toString();
}
/**
* This method generates a 2d barcode using the zxing library. Each pixel of the bitmap is either
* black or white painted vertically. We determine which color using the BitMatrix.get(x, y)
* method.
*/
private static Bitmap generateBarcode(String hex, int width, int height) {
MultiFormatWriter writer = new MultiFormatWriter();
String data = Uri.encode(hex);
try {
BitMatrix bitMatrix = writer.encode(data, BarcodeFormat.CODE_128, width, 1);
Bitmap bitmap = Bitmap.createBitmap(bitMatrix.getWidth(), height, Config.RGB_565);
for (int i = 0; i < bitMatrix.getWidth(); i++) {
// Paint columns of width 1
int[] column = new int[height];
Arrays.fill(column, bitMatrix.get(i, 0) ? Color.BLACK : Color.WHITE);
bitmap.setPixels(column, 0, 1, i, 0, 1, height);
}
return bitmap;
} catch (WriterException e) {
LogUtil.e("SpecialCharSequenceMgr.generateBarcode", "error generating barcode", e);
}
return null;
}
private static boolean handleRegulatoryInfoDisplay(Context context, String input) {
if (input.equals(MMI_REGULATORY_INFO_DISPLAY)) {
LogUtil.i(
"SpecialCharSequenceMgr.handleRegulatoryInfoDisplay", "sending intent to settings app");
Intent showRegInfoIntent = new Intent(Settings.ACTION_SHOW_REGULATORY_INFO);
try {
context.startActivity(showRegInfoIntent);
} catch (ActivityNotFoundException e) {
LogUtil.e(
"SpecialCharSequenceMgr.handleRegulatoryInfoDisplay", "startActivity() failed: ", e);
}
return true;
}
return false;
}
public static class HandleAdnEntryAccountSelectedCallback extends SelectPhoneAccountListener {
private final Context context;
private final QueryHandler queryHandler;
private final SimContactQueryCookie cookie;
public HandleAdnEntryAccountSelectedCallback(
Context context, QueryHandler queryHandler, SimContactQueryCookie cookie) {
this.context = context;
this.queryHandler = queryHandler;
this.cookie = cookie;
}
@Override
public void onPhoneAccountSelected(
PhoneAccountHandle selectedAccountHandle, boolean setDefault, @Nullable String callId) {
Uri uri = TelecomUtil.getAdnUriForPhoneAccount(context, selectedAccountHandle);
handleAdnQuery(queryHandler, cookie, uri);
// TODO: Show error dialog if result isn't valid.
}
}
public static class HandleMmiAccountSelectedCallback extends SelectPhoneAccountListener {
private final Context context;
private final String input;
public HandleMmiAccountSelectedCallback(Context context, String input) {
this.context = context.getApplicationContext();
this.input = input;
}
@Override
public void onPhoneAccountSelected(
PhoneAccountHandle selectedAccountHandle, boolean setDefault, @Nullable String callId) {
TelecomUtil.handleMmi(context, input, selectedAccountHandle);
}
}
/**
* Cookie object that contains everything we need to communicate to the handler's onQuery
* Complete, as well as what we need in order to cancel the query (if requested).
*
* <p>Note, access to the textField field is going to be synchronized, because the user can
* request a cancel at any time through the UI.
*/
private static class SimContactQueryCookie implements DialogInterface.OnCancelListener {
public ProgressDialog progressDialog;
public int contactNum;
// Used to identify the query request.
private int token;
private QueryHandler handler;
// The text field we're going to update
private EditText textField;
public SimContactQueryCookie(int number, QueryHandler handler, int token) {
contactNum = number;
this.handler = handler;
this.token = token;
}
/** Synchronized getter for the EditText. */
public synchronized EditText getTextField() {
return textField;
}
/** Synchronized setter for the EditText. */
public synchronized void setTextField(EditText text) {
textField = text;
}
/**
* Cancel the ADN query by stopping the operation and signaling the cookie that a cancel request
* is made.
*/
@Override
public synchronized void onCancel(DialogInterface dialog) {
// close the progress dialog
if (progressDialog != null) {
progressDialog.dismiss();
}
// setting the textfield to null ensures that the UI does NOT get
// updated.
textField = null;
// Cancel the operation if possible.
handler.cancelOperation(token);
}
}
/**
* Asynchronous query handler that services requests to look up ADNs
*
* <p>Queries originate from {@link #handleAdnEntry}.
*/
private static class QueryHandler extends NoNullCursorAsyncQueryHandler {
private boolean canceled;
public QueryHandler(ContentResolver cr) {
super(cr);
}
/** Override basic onQueryComplete to fill in the textfield when we're handed the ADN cursor. */
@Override
protected void onNotNullableQueryComplete(int token, Object cookie, Cursor c) {
try {
previousAdnQueryHandler = null;
if (canceled) {
return;
}
SimContactQueryCookie sc = (SimContactQueryCookie) cookie;
// close the progress dialog.
sc.progressDialog.dismiss();
// get the EditText to update or see if the request was cancelled.
EditText text = sc.getTextField();
// if the TextView is valid, and the cursor is valid and positionable on the
// Nth number, then we update the text field and display a toast indicating the
// caller name.
if ((c != null) && (text != null) && (c.moveToPosition(sc.contactNum))) {
String name = c.getString(c.getColumnIndexOrThrow(ADN_NAME_COLUMN_NAME));
String number = c.getString(c.getColumnIndexOrThrow(ADN_PHONE_NUMBER_COLUMN_NAME));
// fill the text in.
text.getText().replace(0, 0, number);
// display the name as a toast
Context context = sc.progressDialog.getContext();
CharSequence msg =
ContactDisplayUtils.getTtsSpannedPhoneNumber(
context.getResources(), R.string.menu_callNumber, name);
Toast.makeText(context, msg, Toast.LENGTH_SHORT).show();
}
} finally {
MoreCloseables.closeQuietly(c);
}
}
public void cancel() {
canceled = true;
// Ask AsyncQueryHandler to cancel the whole request. This will fail when the query is
// already started.
cancelOperation(ADN_QUERY_TOKEN);
}
}
}