Merge "carrier-wifi: enable metered network to download the certificate."

package com.android.internal.telephony;

import static android.preference.PreferenceManager.getDefaultSharedPreferences;

import static android.telephony.CarrierConfigManager.KEY_ALLOW_METERED_NETWORK_FOR_CERT_DOWNLOAD_BOOL;

import static java.nio.charset.StandardCharsets.UTF_8;

    private final Context mContext;

    public final DownloadManager mDownloadManager;

    private String mURL;

    private boolean mAllowedOverMeteredNetwork = false;

    public CarrierKeyDownloadManager(Phone phone) {

        mPhone = phone;

        }

        mKeyAvailability = b.getInt(CarrierConfigManager.IMSI_KEY_AVAILABILITY_INT);

        mURL = b.getString(CarrierConfigManager.IMSI_KEY_DOWNLOAD_URL_STRING);

        mAllowedOverMeteredNetwork = b.getBoolean(

                KEY_ALLOW_METERED_NETWORK_FOR_CERT_DOWNLOAD_BOOL);

        if (TextUtils.isEmpty(mURL) || mKeyAvailability == 0) {

            Log.d(LOG_TAG, "Carrier not enabled or invalid values");

            return false;

        }

        try {

            DownloadManager.Request request = new DownloadManager.Request(Uri.parse(mURL));

            request.setAllowedOverMetered(false);

            // TODO(b/128550341): Implement the logic to minimize using metered network such as

            // LTE for downloading a certificate.

            request.setAllowedOverMetered(mAllowedOverMeteredNetwork);

            request.setVisibleInDownloadsUi(false);

            request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_HIDDEN);

            Long carrierKeyDownloadRequestId = mDownloadManager.enqueue(request);