hyosun | 873e6dc | 2021-12-22 14:56:03 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2021 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.phone; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.SharedPreferences; |
| 21 | import android.os.PersistableBundle; |
| 22 | import android.preference.PreferenceManager; |
| 23 | import android.telephony.ims.ProvisioningManager; |
| 24 | import android.telephony.ims.feature.ImsFeature; |
| 25 | import android.telephony.ims.feature.MmTelFeature; |
| 26 | import android.telephony.ims.stub.ImsRegistrationImplBase; |
| 27 | import android.util.Log; |
| 28 | import android.util.SparseArray; |
| 29 | |
| 30 | import com.android.internal.annotations.VisibleForTesting; |
| 31 | |
| 32 | import java.io.File; |
| 33 | import java.io.FileInputStream; |
| 34 | import java.io.FileNotFoundException; |
| 35 | import java.io.FileOutputStream; |
| 36 | import java.io.IOException; |
| 37 | |
| 38 | /** |
| 39 | * Provides a function to set/get Ims feature provisioning status in storage. |
| 40 | */ |
| 41 | public class ImsProvisioningLoader { |
| 42 | private static final String LOG_TAG = ImsProvisioningLoader.class.getSimpleName(); |
| 43 | |
| 44 | public static final int STATUS_NOT_SET = -1; |
| 45 | public static final int STATUS_NOT_PROVISIONED = |
| 46 | ProvisioningManager.PROVISIONING_VALUE_DISABLED; |
| 47 | public static final int STATUS_PROVISIONED = |
| 48 | ProvisioningManager.PROVISIONING_VALUE_ENABLED; |
| 49 | |
| 50 | public static final int IMS_FEATURE_MMTEL = ImsFeature.FEATURE_MMTEL; |
| 51 | public static final int IMS_FEATURE_RCS = ImsFeature.FEATURE_RCS; |
| 52 | |
| 53 | private static final String PROVISIONING_FILE_NAME_PREF = "imsprovisioningstatus_"; |
| 54 | private static final String PREF_PROVISION_IMS_MMTEL_PREFIX = "provision_ims_mmtel_"; |
| 55 | |
| 56 | private Context mContext; |
| 57 | private SharedPreferences mTelephonySharedPreferences; |
| 58 | // key : sub Id, value : read from sub Id's xml and it's in-memory cache |
| 59 | private SparseArray<PersistableBundle> mSubIdBundleArray = new SparseArray<>(); |
| 60 | private final Object mLock = new Object(); |
| 61 | |
| 62 | public ImsProvisioningLoader(Context context) { |
| 63 | mContext = context; |
| 64 | mTelephonySharedPreferences = |
| 65 | PreferenceManager.getDefaultSharedPreferences(context); |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * Get Ims feature provisioned status in storage |
| 70 | */ |
| 71 | public int getProvisioningStatus(int subId, @ImsFeature.FeatureType int imsFeature, |
| 72 | int capability, @ImsRegistrationImplBase.ImsRegistrationTech int tech) { |
| 73 | initCache(subId); |
| 74 | return getImsProvisioningStatus(subId, imsFeature, tech, |
| 75 | capability); |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * Set Ims feature provisioned status in storage |
| 80 | */ |
| 81 | public boolean setProvisioningStatus(int subId, @ImsFeature.FeatureType int imsFeature, |
| 82 | int capability, @ImsRegistrationImplBase.ImsRegistrationTech int tech, |
| 83 | boolean isProvisioned) { |
| 84 | initCache(subId); |
| 85 | return setImsFeatureProvisioning(subId, imsFeature, tech, capability, |
| 86 | isProvisioned); |
| 87 | } |
| 88 | |
| 89 | private boolean isFileExist(int subId) { |
| 90 | File file = new File(mContext.getFilesDir(), getFileName(subId)); |
| 91 | return file.exists(); |
| 92 | } |
| 93 | |
| 94 | private void initCache(int subId) { |
| 95 | synchronized (mLock) { |
| 96 | PersistableBundle subIdBundle = mSubIdBundleArray.get(subId, null); |
| 97 | if (subIdBundle != null) { |
| 98 | // initCache() has already been called for the subId |
| 99 | return; |
| 100 | } |
| 101 | if (isFileExist(subId)) { |
| 102 | subIdBundle = readSubIdBundleFromXml(subId); |
| 103 | } else { |
| 104 | // It should read the MMTEL capability cache as part of shared prefs and migrate |
| 105 | // over any configs for UT. |
| 106 | final int[] regTech = {ImsRegistrationImplBase.REGISTRATION_TECH_LTE, |
| 107 | ImsRegistrationImplBase.REGISTRATION_TECH_IWLAN, |
| 108 | ImsRegistrationImplBase.REGISTRATION_TECH_CROSS_SIM, |
| 109 | ImsRegistrationImplBase.REGISTRATION_TECH_NR}; |
| 110 | subIdBundle = new PersistableBundle(); |
| 111 | for (int tech : regTech) { |
| 112 | int UtProvisioningStatus = getUTProvisioningStatus(subId, tech); |
joonhunshin | f45e45b | 2022-02-03 06:37:55 +0000 | [diff] [blame] | 113 | logd("check UT provisioning status " + UtProvisioningStatus); |
| 114 | |
hyosun | 873e6dc | 2021-12-22 14:56:03 +0000 | [diff] [blame] | 115 | if (STATUS_PROVISIONED == UtProvisioningStatus) { |
| 116 | setProvisioningStatusToSubIdBundle(ImsFeature.FEATURE_MMTEL, tech, |
| 117 | MmTelFeature.MmTelCapabilities.CAPABILITY_TYPE_UT, subIdBundle, |
| 118 | UtProvisioningStatus); |
| 119 | } |
| 120 | } |
| 121 | saveSubIdBundleToXml(subId, subIdBundle); |
| 122 | } |
| 123 | mSubIdBundleArray.put(subId, subIdBundle); |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | private int getImsProvisioningStatus(int subId, int imsFeature, int tech, int capability) { |
| 128 | PersistableBundle subIdBundle = null; |
| 129 | synchronized (mLock) { |
| 130 | subIdBundle = mSubIdBundleArray.get(subId, null); |
| 131 | } |
| 132 | |
| 133 | return getProvisioningStatusFromSubIdBundle(imsFeature, tech, |
| 134 | capability, subIdBundle); |
| 135 | } |
| 136 | |
| 137 | private boolean setImsFeatureProvisioning(int subId, int imsFeature, int tech, int capability, |
| 138 | boolean isProvisioned) { |
| 139 | synchronized (mLock) { |
| 140 | int preValue = getImsProvisioningStatus(subId, imsFeature, tech, capability); |
| 141 | int newValue = isProvisioned ? STATUS_PROVISIONED : STATUS_NOT_PROVISIONED; |
| 142 | if (preValue == newValue) { |
| 143 | logd("already stored provisioning status " + isProvisioned + " ImsFeature " |
| 144 | + imsFeature + " tech " + tech + " capa " + capability); |
| 145 | return false; |
| 146 | } |
| 147 | |
| 148 | PersistableBundle subIdBundle = mSubIdBundleArray.get(subId, null); |
| 149 | setProvisioningStatusToSubIdBundle(imsFeature, tech, capability, subIdBundle, |
| 150 | newValue); |
| 151 | saveSubIdBundleToXml(subId, subIdBundle); |
| 152 | } |
| 153 | return true; |
| 154 | } |
| 155 | |
| 156 | private int getProvisioningStatusFromSubIdBundle(int imsFeature, int tech, |
| 157 | int capability, PersistableBundle subIdBundle) { |
| 158 | // If it doesn't exist in xml, return STATUS_NOT_SET |
| 159 | if (subIdBundle == null || subIdBundle.isEmpty()) { |
| 160 | logd("xml is empty"); |
| 161 | return STATUS_NOT_SET; |
| 162 | } |
| 163 | |
| 164 | PersistableBundle regTechBundle = subIdBundle.getPersistableBundle( |
| 165 | String.valueOf(imsFeature)); |
| 166 | if (regTechBundle == null) { |
| 167 | logd("ImsFeature " + imsFeature + " is not exist in xml"); |
| 168 | return STATUS_NOT_SET; |
| 169 | } |
| 170 | |
| 171 | PersistableBundle capabilityBundle = regTechBundle.getPersistableBundle( |
| 172 | String.valueOf(tech)); |
| 173 | if (capabilityBundle == null) { |
| 174 | logd("RegistrationTech " + tech + " is not exist in xml"); |
| 175 | return STATUS_NOT_SET; |
| 176 | } |
| 177 | |
| 178 | return getIntValueFromBundle(String.valueOf(capability), capabilityBundle); |
| 179 | } |
| 180 | |
| 181 | private void setProvisioningStatusToSubIdBundle(int imsFeature, int tech, |
| 182 | int capability, PersistableBundle subIdBundle, int newStatus) { |
joonhunshin | f45e45b | 2022-02-03 06:37:55 +0000 | [diff] [blame] | 183 | logd("set provisioning status " + newStatus + " ImsFeature " |
| 184 | + imsFeature + " tech " + tech + " capa " + capability); |
| 185 | |
hyosun | 873e6dc | 2021-12-22 14:56:03 +0000 | [diff] [blame] | 186 | PersistableBundle regTechBundle = subIdBundle.getPersistableBundle( |
| 187 | String.valueOf(imsFeature)); |
| 188 | if (regTechBundle == null) { |
| 189 | regTechBundle = new PersistableBundle(); |
| 190 | subIdBundle.putPersistableBundle(String.valueOf(imsFeature), regTechBundle); |
| 191 | } |
| 192 | |
| 193 | PersistableBundle capabilityBundle = regTechBundle.getPersistableBundle( |
| 194 | String.valueOf(tech)); |
| 195 | if (capabilityBundle == null) { |
| 196 | capabilityBundle = new PersistableBundle(); |
| 197 | regTechBundle.putPersistableBundle(String.valueOf(tech), capabilityBundle); |
| 198 | } |
| 199 | |
| 200 | capabilityBundle.putInt(String.valueOf(capability), newStatus); |
| 201 | } |
| 202 | |
| 203 | // Default value is STATUS_NOT_SET |
| 204 | private int getIntValueFromBundle(String key, PersistableBundle bundle) { |
joonhunshin | f45e45b | 2022-02-03 06:37:55 +0000 | [diff] [blame] | 205 | int value = bundle.getInt(key, STATUS_NOT_SET); |
| 206 | logd("get value " + value); |
| 207 | return value; |
hyosun | 873e6dc | 2021-12-22 14:56:03 +0000 | [diff] [blame] | 208 | } |
| 209 | |
| 210 | // Return subIdBundle from imsprovisioningstatus_{subId}.xml |
| 211 | private PersistableBundle readSubIdBundleFromXml(int subId) { |
| 212 | String fileName = getFileName(subId); |
| 213 | |
| 214 | PersistableBundle subIdBundles = new PersistableBundle(); |
| 215 | File file = null; |
| 216 | FileInputStream inFile = null; |
| 217 | synchronized (mLock) { |
| 218 | try { |
| 219 | file = new File(mContext.getFilesDir(), fileName); |
| 220 | inFile = new FileInputStream(file); |
| 221 | subIdBundles = PersistableBundle.readFromStream(inFile); |
| 222 | inFile.close(); |
| 223 | } catch (FileNotFoundException e) { |
| 224 | logd(e.toString()); |
| 225 | } catch (IOException e) { |
| 226 | loge(e.toString()); |
| 227 | } catch (RuntimeException e) { |
| 228 | loge(e.toString()); |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | return subIdBundles; |
| 233 | } |
| 234 | |
| 235 | private void saveSubIdBundleToXml(int subId, PersistableBundle subIdBundle) { |
| 236 | String fileName = getFileName(subId); |
| 237 | |
| 238 | if (subIdBundle == null || subIdBundle.isEmpty()) { |
| 239 | logd("subIdBundle is empty"); |
| 240 | return; |
| 241 | } |
| 242 | |
| 243 | FileOutputStream outFile = null; |
| 244 | synchronized (mLock) { |
| 245 | try { |
| 246 | outFile = new FileOutputStream(new File(mContext.getFilesDir(), fileName)); |
| 247 | subIdBundle.writeToStream(outFile); |
| 248 | outFile.flush(); |
| 249 | outFile.close(); |
| 250 | } catch (IOException e) { |
| 251 | loge(e.toString()); |
| 252 | } catch (RuntimeException e) { |
| 253 | loge(e.toString()); |
| 254 | } |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | private int getUTProvisioningStatus(int subId, int tech) { |
| 259 | return getMmTelCapabilityProvisioningBitfield(subId, tech) > 0 ? STATUS_PROVISIONED |
| 260 | : STATUS_NOT_SET; |
| 261 | } |
| 262 | |
| 263 | /** |
| 264 | * @return the bitfield containing the MmTel provisioning for the provided subscription and |
| 265 | * technology. The bitfield should mirror the bitfield defined by |
| 266 | * {@link MmTelFeature.MmTelCapabilities.MmTelCapability}. |
| 267 | */ |
| 268 | private int getMmTelCapabilityProvisioningBitfield(int subId, int tech) { |
| 269 | String key = getMmTelProvisioningKey(subId, tech); |
| 270 | // Default is no capabilities are provisioned. |
| 271 | return mTelephonySharedPreferences.getInt(key, 0 /*default*/); |
| 272 | } |
| 273 | |
| 274 | private String getMmTelProvisioningKey(int subId, int tech) { |
| 275 | // Resulting key is provision_ims_mmtel_{subId}_{tech} |
| 276 | return PREF_PROVISION_IMS_MMTEL_PREFIX + subId + "_" + tech; |
| 277 | } |
| 278 | |
| 279 | private String getFileName(int subId) { |
| 280 | // Resulting name is imsprovisioningstatus_{subId}.xml |
| 281 | return PROVISIONING_FILE_NAME_PREF + subId + ".xml"; |
| 282 | } |
| 283 | |
| 284 | @VisibleForTesting |
| 285 | void clear() { |
| 286 | synchronized (mLock) { |
| 287 | mSubIdBundleArray.clear(); |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | @VisibleForTesting |
| 292 | void setProvisioningToXml(int subId, PersistableBundle subIdBundle, |
| 293 | String[] infoArray) { |
| 294 | for (String info : infoArray) { |
| 295 | String[] paramArray = info.split(","); |
| 296 | setProvisioningStatusToSubIdBundle(Integer.valueOf(paramArray[0]), |
| 297 | Integer.valueOf(paramArray[1]), Integer.valueOf(paramArray[2]), |
| 298 | subIdBundle, Integer.valueOf(paramArray[3])); |
| 299 | } |
| 300 | saveSubIdBundleToXml(subId, subIdBundle); |
| 301 | } |
| 302 | |
| 303 | private void loge(String contents) { |
| 304 | Log.e(LOG_TAG, contents); |
| 305 | } |
| 306 | |
| 307 | private void logd(String contents) { |
| 308 | Log.d(LOG_TAG, contents); |
| 309 | } |
| 310 | |
| 311 | } |