session-android/libtextsecure/src/main/java/org/whispersystems/textsecure/api/util/PhoneNumberFormatter.java

138 lines
4.6 KiB
Java

/**
* Copyright (C) 2014 Open Whisper Systems
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whispersystems.textsecure.api.util;
import android.util.Log;
import com.google.i18n.phonenumbers.NumberParseException;
import com.google.i18n.phonenumbers.PhoneNumberUtil;
import com.google.i18n.phonenumbers.PhoneNumberUtil.PhoneNumberFormat;
import com.google.i18n.phonenumbers.Phonenumber.PhoneNumber;
import java.util.Locale;
/**
* Phone number formats are a pain.
*
* @author Moxie Marlinspike
*
*/
public class PhoneNumberFormatter {
private static final String TAG = PhoneNumberFormatter.class.getSimpleName();
public static boolean isValidNumber(String number) {
return number.matches("^\\+[0-9]{10,}");
}
private static String impreciseFormatNumber(String number, String localNumber)
throws InvalidNumberException
{
number = number.replaceAll("[^0-9+]", "");
if (number.charAt(0) == '+')
return number;
if (localNumber.charAt(0) == '+')
localNumber = localNumber.substring(1);
if (localNumber.length() == number.length() || number.length() > localNumber.length())
return "+" + number;
int difference = localNumber.length() - number.length();
return "+" + localNumber.substring(0, difference) + number;
}
public static String formatNumberInternational(String number) {
try {
PhoneNumberUtil util = PhoneNumberUtil.getInstance();
PhoneNumber parsedNumber = util.parse(number, null);
return util.format(parsedNumber, PhoneNumberFormat.INTERNATIONAL);
} catch (NumberParseException e) {
Log.w(TAG, e);
return number;
}
}
public static String formatNumber(String number, String localNumber)
throws InvalidNumberException
{
if (number.contains("@")) {
throw new InvalidNumberException("Possible attempt to use email address.");
}
number = number.replaceAll("[^0-9+]", "");
if (number.length() == 0) {
throw new InvalidNumberException("No valid characters found.");
}
if (number.charAt(0) == '+')
return number;
try {
PhoneNumberUtil util = PhoneNumberUtil.getInstance();
PhoneNumber localNumberObject = util.parse(localNumber, null);
String localCountryCode = util.getRegionCodeForNumber(localNumberObject);
Log.w(TAG, "Got local CC: " + localCountryCode);
PhoneNumber numberObject = util.parse(number, localCountryCode);
return util.format(numberObject, PhoneNumberFormat.E164);
} catch (NumberParseException e) {
Log.w(TAG, e);
return impreciseFormatNumber(number, localNumber);
}
}
public static String getRegionDisplayName(String regionCode) {
return (regionCode == null || regionCode.equals("ZZ") || regionCode.equals(PhoneNumberUtil.REGION_CODE_FOR_NON_GEO_ENTITY))
? "Unknown country" : new Locale("", regionCode).getDisplayCountry(Locale.getDefault());
}
public static String formatE164(String countryCode, String number) {
try {
PhoneNumberUtil util = PhoneNumberUtil.getInstance();
int parsedCountryCode = Integer.parseInt(countryCode);
PhoneNumber parsedNumber = util.parse(number,
util.getRegionCodeForCountryCode(parsedCountryCode));
return util.format(parsedNumber, PhoneNumberUtil.PhoneNumberFormat.E164);
} catch (NumberParseException | NumberFormatException npe) {
Log.w(TAG, npe);
}
return "+" +
countryCode.replaceAll("[^0-9]", "").replaceAll("^0*", "") +
number.replaceAll("[^0-9]", "");
}
public static String getInternationalFormatFromE164(String e164number) {
try {
PhoneNumberUtil util = PhoneNumberUtil.getInstance();
PhoneNumber parsedNumber = util.parse(e164number, null);
return util.format(parsedNumber, PhoneNumberFormat.INTERNATIONAL);
} catch (NumberParseException e) {
Log.w(TAG, e);
return e164number;
}
}
}