51 lines
1.8 KiB
Java
51 lines
1.8 KiB
Java
package org.thoughtcrime.securesms.util;
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import android.support.annotation.NonNull;
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import android.util.Log;
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import com.google.i18n.phonenumbers.NumberParseException;
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import com.google.i18n.phonenumbers.PhoneNumberUtil;
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import com.google.i18n.phonenumbers.Phonenumber;
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import com.google.i18n.phonenumbers.ShortNumberInfo;
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import java.util.HashSet;
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import java.util.Set;
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public class ShortCodeUtil {
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private static final String TAG = ShortCodeUtil.class.getSimpleName();
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private static final Set<String> SHORT_COUNTRIES = new HashSet<String>() {{
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add("NU");
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add("TK");
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add("NC");
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add("AC");
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}};
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public static boolean isShortCode(@NonNull String localNumber, @NonNull String number) {
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try {
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PhoneNumberUtil util = PhoneNumberUtil.getInstance();
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Phonenumber.PhoneNumber localNumberObject = util.parse(localNumber, null);
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String localCountryCode = util.getRegionCodeForNumber(localNumberObject);
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String bareNumber = number.replaceAll("[^0-9+]", "");
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// libphonenumber doesn't seem to be correct for Germany and Finland
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if (bareNumber.length() <= 6 && ("DE".equals(localCountryCode) || "FI".equals(localCountryCode) || "SK".equals(localCountryCode))) {
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return true;
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}
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// libphonenumber seems incorrect for Russia and a few other countries with 4 digit short codes.
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if (bareNumber.length() <= 4 && !SHORT_COUNTRIES.contains(localCountryCode)) {
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return true;
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}
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Phonenumber.PhoneNumber shortCode = util.parse(number, localCountryCode);
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return ShortNumberInfo.getInstance().isPossibleShortNumberForRegion(shortCode, localCountryCode);
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} catch (NumberParseException e) {
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Log.w(TAG, e);
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return false;
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}
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}
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}
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