Add support for country specific emergency number handling. (ab971d3c) · Commits · e / os / android_frameworks_base

telephony/java/android/telephony/PhoneNumberUtils.java

+61 −70

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ import com.android.i18n.phonenumbers.NumberParseException;
		import com.android.i18n.phonenumbers.PhoneNumberUtil;
		import com.android.i18n.phonenumbers.PhoneNumberUtil.PhoneNumberFormat;
		import com.android.i18n.phonenumbers.Phonenumber.PhoneNumber;
		import com.android.i18n.phonenumbers.ShortNumberUtil;

		import android.content.Context;
		import android.content.Intent;
		@@ -1572,56 +1573,7 @@ public class PhoneNumberUtils
		* listed in the RIL / sim, otherwise return false.
		*/
		private static boolean isEmergencyNumberInternal(String number, boolean useExactMatch) {
		// If the number passed in is null, just return false:
		if (number == null) return false;

		// If the number passed in is a SIP address, return false, since the
		// concept of "emergency numbers" is only meaningful for calls placed
		// over the cell network.
		// (Be sure to do this check before calling extractNetworkPortionAlt(),
		// since the whole point of extractNetworkPortionAlt() is to filter out
		// any non-dialable characters (which would turn 'abc911def@example.com'
		// into '911', for example.))
		if (isUriNumber(number)) {
		return false;
		}

		// Strip the separators from the number before comparing it
		// to the list.
		number = extractNetworkPortionAlt(number);

		// retrieve the list of emergency numbers
		// check read-write ecclist property first
		String numbers = SystemProperties.get("ril.ecclist");
		if (TextUtils.isEmpty(numbers)) {
		// then read-only ecclist property since old RIL only uses this
		numbers = SystemProperties.get("ro.ril.ecclist");
		}

		if (!TextUtils.isEmpty(numbers)) {
		// searches through the comma-separated list for a match,
		// return true if one is found.
		for (String emergencyNum : numbers.split(",")) {
		if (useExactMatch) {
		if (number.equals(emergencyNum)) {
		return true;
		}
		} else {
		if (number.startsWith(emergencyNum)) {
		return true;
		}
		}
		}
		// no matches found against the list!
		return false;
		}

		// No ecclist system property, so use our own list.
		if (useExactMatch) {
		return (number.equals("112") \|\| number.equals("911"));
		} else {
		return (number.startsWith("112") \|\| number.startsWith("911"));
		}
		return isEmergencyNumberInternal(number, null, useExactMatch);
		}

		/**
		@@ -1684,28 +1636,67 @@ public class PhoneNumberUtils
		private static boolean isEmergencyNumberInternal(String number,
		String defaultCountryIso,
		boolean useExactMatch) {
		PhoneNumberUtil util = PhoneNumberUtil.getInstance();
		try {
		PhoneNumber pn = util.parse(number, defaultCountryIso);
		// libphonenumber guarantees short numbers such as emergency numbers are classified as
		// invalid. Therefore, if the number passes the validation test, we believe it is not an
		// emergency number.
		// TODO: Compare against a list of country-specific known emergency numbers instead, once
		// that has been collected.
		if (util.isValidNumber(pn)) {
		// If the number passed in is null, just return false:
		if (number == null) return false;

		// If the number passed in is a SIP address, return false, since the
		// concept of "emergency numbers" is only meaningful for calls placed
		// over the cell network.
		// (Be sure to do this check before calling extractNetworkPortionAlt(),
		// since the whole point of extractNetworkPortionAlt() is to filter out
		// any non-dialable characters (which would turn 'abc911def@example.com'
		// into '911', for example.))
		if (isUriNumber(number)) {
		return false;
		} else if ("BR".equalsIgnoreCase(defaultCountryIso) && number.length() >= 8) {
		// This is to prevent Brazilian local numbers which start with 911 being incorrectly
		// classified as emergency numbers. 911 is not an emergency number in Brazil; it is also
		// not possible to append additional digits to an emergency number to dial the number in
		// Brazil - it won't connect.
		// TODO: Clean this up once a list of country-specific known emergency numbers is
		// collected.
		}

		// Strip the separators from the number before comparing it
		// to the list.
		number = extractNetworkPortionAlt(number);

		// retrieve the list of emergency numbers
		// check read-write ecclist property first
		String numbers = SystemProperties.get("ril.ecclist");
		if (TextUtils.isEmpty(numbers)) {
		// then read-only ecclist property since old RIL only uses this
		numbers = SystemProperties.get("ro.ril.ecclist");
		}

		if (!TextUtils.isEmpty(numbers)) {
		// searches through the comma-separated list for a match,
		// return true if one is found.
		for (String emergencyNum : numbers.split(",")) {
		// It is not possible to append additional digits to an emergency number to dial
		// the number in Brazil - it won't connect.
		if (useExactMatch \|\| "BR".equalsIgnoreCase(defaultCountryIso)) {
		if (number.equals(emergencyNum)) {
		return true;
		}
		} else {
		if (number.startsWith(emergencyNum)) {
		return true;
		}
		}
		}
		// no matches found against the list!
		return false;
		}
		} catch (NumberParseException e) {

		// No ecclist system property, so use our own list.
		if (defaultCountryIso != null) {
		ShortNumberUtil util = new ShortNumberUtil();
		if (useExactMatch) {
		return util.isEmergencyNumber(number, defaultCountryIso);
		} else {
		return util.connectsToEmergencyNumber(number, defaultCountryIso);
		}
		} else {
		if (useExactMatch) {
		return (number.equals("112") \|\| number.equals("911"));
		} else {
		return (number.startsWith("112") \|\| number.startsWith("911"));
		}
		}
		return isEmergencyNumberInternal(number, useExactMatch);
		}

		/**