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/*
* Copyright (C) 2015 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 android.support.v7.mms;
import android.content.Context;
import android.content.res.Configuration;
import android.os.Build;
import android.telephony.SmsManager;
import android.telephony.SubscriptionInfo;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.Log;
import java.net.MalformedURLException;
import java.net.URL;
/**
* Utility methods
*/
class Utils {
/**
* Check if MMS API is available
*
* @return true if MMS API is available, false otherwise
*/
static boolean hasMmsApi() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
}
/**
* Check if support multi-SIM
*
* @return true if MSIM is supported, false otherwise
*/
static boolean supportMSim() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1;
}
/**
* Check if support APIs for getting UserAgent and UAProfUrl
*
* @return true if those APIs are supported, false otherwise
*/
static boolean hasUserAgentApi() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
}
/**
* Get system SmsManager
*
* @param subId the subscription ID of the SmsManager
* @return the SmsManager for the input subId
*/
static SmsManager getSmsManager(final int subId) {
if (supportMSim()) {
return SmsManager.getSmsManagerForSubscriptionId(subId);
} else {
return SmsManager.getDefault();
}
}
/**
* Get the real subscription ID if the input is -1
*
* @param subId input subscription ID
* @return the default SMS subscription ID if the input is -1, otherwise the original
*/
static int getEffectiveSubscriptionId(int subId) {
if (supportMSim()) {
if (subId == MmsManager.DEFAULT_SUB_ID) {
subId = SmsManager.getDefaultSmsSubscriptionId();
}
}
if (subId < 0) {
subId = MmsManager.DEFAULT_SUB_ID;
}
return subId;
}
/**
* Get MCC/MNC of an SIM subscription
*
* @param context the Context to use
* @param subId the SIM subId
* @return a non-empty array with exactly two elements, first is mcc and last is mnc.
*/
static int[] getMccMnc(final Context context, final int subId) {
final int[] mccMnc = new int[] { 0, 0 };
if (Utils.supportMSim()) {
final SubscriptionManager subscriptionManager = SubscriptionManager.from(context);
final SubscriptionInfo subInfo = subscriptionManager.getActiveSubscriptionInfo(subId);
if (subInfo != null) {
mccMnc[0] = subInfo.getMcc();
mccMnc[1] = subInfo.getMnc();
}
} else {
final TelephonyManager telephonyManager =
(TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
final String mccMncString = telephonyManager.getSimOperator();
try {
mccMnc[0] = Integer.parseInt(mccMncString.substring(0, 3));
mccMnc[1] = Integer.parseInt(mccMncString.substring(3));
} catch (Exception e) {
Log.w(MmsService.TAG, "Invalid mcc/mnc from system " + mccMncString + ": " + e);
mccMnc[0] = 0;
mccMnc[1] = 0;
}
}
return mccMnc;
}
/**
* Get a subscription's Context so we can load resources from it
*
* @param context the sub-independent Context
* @param subId the SIM's subId
* @return the sub-dependent Context
*/
static Context getSubDepContext(final Context context, final int subId) {
if (!supportMSim()) {
return context;
}
final int[] mccMnc = getMccMnc(context, subId);
final int mcc = mccMnc[0];
final int mnc = mccMnc[1];
if (mcc == 0 && mnc == 0) {
return context;
}
final Configuration subConfig = new Configuration();
subConfig.mcc = mcc;
subConfig.mnc = mnc;
return context.createConfigurationContext(subConfig);
}
/**
* Redact the URL for non-VERBOSE logging. Replace url with only the host part and the length
* of the input URL string.
*
* @param urlString
* @return
*/
static String redactUrlForNonVerbose(String urlString) {
if (Log.isLoggable(MmsService.TAG, Log.VERBOSE)) {
// Don't redact for VERBOSE level logging
return urlString;
}
if (TextUtils.isEmpty(urlString)) {
return urlString;
}
String protocol = "http";
String host = "";
try {
final URL url = new URL(urlString);
protocol = url.getProtocol();
host = url.getHost();
} catch (MalformedURLException e) {
// Ignore
}
// Print "http://host[length]"
final StringBuilder sb = new StringBuilder();
sb.append(protocol).append("://").append(host)
.append("[").append(urlString.length()).append("]");
return sb.toString();
}
}
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