| /* |
| * Copyright (C) 2020 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.ims.rcs.uce.presence.publish; |
| |
| import android.content.Context; |
| import android.net.Uri; |
| import android.telephony.PhoneNumberUtils; |
| import android.telephony.TelephonyManager; |
| import android.telephony.ims.feature.RcsFeature.RcsImsCapabilities; |
| import android.telephony.ims.feature.RcsFeature.RcsImsCapabilities.RcsImsCapabilityFlag; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| import com.android.ims.rcs.uce.util.UceUtils; |
| |
| import java.util.Arrays; |
| |
| /** |
| * The util class of publishing device's capabilities. |
| */ |
| public class PublishUtils { |
| private static final String LOG_TAG = UceUtils.getLogPrefix() + "PublishUtils"; |
| |
| private static final String SCHEME_SIP = "sip"; |
| private static final String SCHEME_TEL = "tel"; |
| private static final String DOMAIN_SEPARATOR = "@"; |
| |
| public static Uri getDeviceContactUri(Context context, int subId, |
| DeviceCapabilityInfo deviceCap) { |
| // Get the uri from the IMS associated URI which is provided by the IMS service. |
| Uri contactUri = deviceCap.getImsAssociatedUri(); |
| if (contactUri != null) { |
| Log.d(LOG_TAG, "getDeviceContactUri: ims associated uri"); |
| return contactUri; |
| } |
| |
| TelephonyManager telephonyManager = getTelephonyManager(context, subId); |
| if (telephonyManager == null) { |
| Log.w(LOG_TAG, "getDeviceContactUri: TelephonyManager is null"); |
| return null; |
| } |
| |
| // Get the contact uri from ISIM. |
| contactUri = getContactUriFromIsim(telephonyManager); |
| if (contactUri != null) { |
| Log.d(LOG_TAG, "getDeviceContactUri: impu"); |
| return contactUri; |
| } else { |
| Log.d(LOG_TAG, "getDeviceContactUri: line number"); |
| return getContactUriFromLine1Number(telephonyManager); |
| } |
| } |
| |
| /** |
| * Find all instances of sip/sips/tel URIs containing PII and replace them. |
| * <p> |
| * This is used for removing PII in logging. |
| * @param source The source string to remove the phone numbers from. |
| * @return A version of the given string with SIP URIs removed. |
| */ |
| public static String removeNumbersFromUris(String source) { |
| // Replace only the number portion in the sip/sips/tel URI |
| return source.replaceAll("(?:sips?|tel):(\\+?[\\d\\-]+)", "[removed]"); |
| } |
| |
| private static Uri getContactUriFromIsim(TelephonyManager telephonyManager) { |
| // Get the home network domain and the array of the public user identities |
| String domain = telephonyManager.getIsimDomain(); |
| String[] impus = telephonyManager.getIsimImpu(); |
| |
| if (TextUtils.isEmpty(domain) || impus == null) { |
| Log.d(LOG_TAG, "getContactUriFromIsim: domain is null=" + TextUtils.isEmpty(domain)); |
| Log.d(LOG_TAG, "getContactUriFromIsim: impu is null=" + |
| ((impus == null || impus.length == 0) ? "true" : "false")); |
| return null; |
| } |
| |
| for (String impu : impus) { |
| if (TextUtils.isEmpty(impu)) continue; |
| Uri impuUri = Uri.parse(impu); |
| String scheme = impuUri.getScheme(); |
| String schemeSpecificPart = impuUri.getSchemeSpecificPart(); |
| if (SCHEME_SIP.equals(scheme) && !TextUtils.isEmpty(schemeSpecificPart) && |
| schemeSpecificPart.endsWith(domain)) { |
| return impuUri; |
| } |
| } |
| Log.d(LOG_TAG, "getContactUriFromIsim: there is no impu matching the domain"); |
| return null; |
| } |
| |
| private static Uri getContactUriFromLine1Number(TelephonyManager telephonyManager) { |
| String phoneNumber = formatPhoneNumber(telephonyManager.getLine1Number()); |
| if (TextUtils.isEmpty(phoneNumber)) { |
| Log.w(LOG_TAG, "Cannot get the phone number"); |
| return null; |
| } |
| |
| String domain = telephonyManager.getIsimDomain(); |
| if (!TextUtils.isEmpty(domain)) { |
| return Uri.fromParts(SCHEME_SIP, phoneNumber + DOMAIN_SEPARATOR + domain, null); |
| } else { |
| return Uri.fromParts(SCHEME_TEL, phoneNumber, null); |
| } |
| } |
| |
| private static String formatPhoneNumber(final String phoneNumber) { |
| if (TextUtils.isEmpty(phoneNumber)) { |
| Log.w(LOG_TAG, "formatPhoneNumber: phone number is empty"); |
| return null; |
| } |
| String number = PhoneNumberUtils.stripSeparators(phoneNumber); |
| return PhoneNumberUtils.normalizeNumber(number); |
| } |
| |
| private static TelephonyManager getTelephonyManager(Context context, int subId) { |
| TelephonyManager telephonyManager = context.getSystemService(TelephonyManager.class); |
| if (telephonyManager == null) { |
| return null; |
| } else { |
| return telephonyManager.createForSubscriptionId(subId); |
| } |
| } |
| |
| static @RcsImsCapabilityFlag int getCapabilityType(Context context, int subId) { |
| boolean isPresenceSupported = UceUtils.isPresenceSupported(context, subId); |
| boolean isSipOptionsSupported = UceUtils.isSipOptionsSupported(context, subId); |
| if (isPresenceSupported) { |
| return RcsImsCapabilities.CAPABILITY_TYPE_PRESENCE_UCE; |
| } else if (isSipOptionsSupported) { |
| return RcsImsCapabilities.CAPABILITY_TYPE_OPTIONS_UCE; |
| } else { |
| // Return NONE when neither OPTIONS nor PRESENCE is supported. |
| return RcsImsCapabilities.CAPABILITY_TYPE_NONE; |
| } |
| } |
| } |