| /* |
| * Copyright (C) 2014 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.server.telecom; |
| |
| import android.Manifest; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.content.pm.ServiceInfo; |
| import android.os.Environment; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.telecom.ConnectionService; |
| import android.telecom.PhoneAccount; |
| import android.telecom.PhoneAccountHandle; |
| import android.telecom.TelecomManager; |
| import android.telephony.PhoneNumberUtils; |
| import android.telephony.SubscriptionManager; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.net.Uri; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.TelephonyManager; |
| import android.text.TextUtils; |
| import android.util.AtomicFile; |
| import android.util.Xml; |
| |
| // TODO: Needed for move to system service: import com.android.internal.R; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.FastXmlSerializer; |
| import com.android.internal.util.XmlUtils; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.BufferedInputStream; |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.lang.Integer; |
| import java.lang.NumberFormatException; |
| import java.lang.SecurityException; |
| import java.lang.String; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.concurrent.CopyOnWriteArrayList; |
| |
| /** |
| * Handles writing and reading PhoneAccountHandle registration entries. This is a simple verbatim |
| * delegate for all the account handling methods on {@link android.telecom.TelecomManager} as implemented in |
| * {@link TelecomServiceImpl}, with the notable exception that {@link TelecomServiceImpl} is |
| * responsible for security checking to make sure that the caller has proper authority over |
| * the {@code ComponentName}s they are declaring in their {@code PhoneAccountHandle}s. |
| */ |
| public final class PhoneAccountRegistrar { |
| |
| public static final PhoneAccountHandle NO_ACCOUNT_SELECTED = |
| new PhoneAccountHandle(new ComponentName("null", "null"), "NO_ACCOUNT_SELECTED"); |
| |
| public abstract static class Listener { |
| public void onAccountsChanged(PhoneAccountRegistrar registrar) {} |
| public void onDefaultOutgoingChanged(PhoneAccountRegistrar registrar) {} |
| public void onSimCallManagerChanged(PhoneAccountRegistrar registrar) {} |
| } |
| |
| private static final String FILE_NAME = "phone-account-registrar-state.xml"; |
| @VisibleForTesting |
| public static final int EXPECTED_STATE_VERSION = 3; |
| |
| /** Keep in sync with the same in SipSettings.java */ |
| private static final String SIP_SHARED_PREFERENCES = "SIP_PREFERENCES"; |
| |
| private final List<Listener> mListeners = new CopyOnWriteArrayList<>(); |
| private final AtomicFile mAtomicFile; |
| private final Context mContext; |
| private State mState; |
| |
| @VisibleForTesting |
| public PhoneAccountRegistrar(Context context) { |
| this(context, FILE_NAME); |
| } |
| |
| @VisibleForTesting |
| public PhoneAccountRegistrar(Context context, String fileName) { |
| // TODO: This file path is subject to change -- it is storing the phone account registry |
| // state file in the path /data/system/users/0/, which is likely not correct in a |
| // multi-user setting. |
| /** UNCOMMENT_FOR_MOVE_TO_SYSTEM_SERVICE |
| String filePath = Environment.getUserSystemDirectory(UserHandle.myUserId()). |
| getAbsolutePath(); |
| mAtomicFile = new AtomicFile(new File(filePath, fileName)); |
| UNCOMMENT_FOR_MOVE_TO_SYSTEM_SERVICE */ |
| mAtomicFile = new AtomicFile(new File(context.getFilesDir(), fileName)); |
| |
| mState = new State(); |
| mContext = context; |
| read(); |
| } |
| |
| /** |
| * Retrieves the subscription id for a given phone account if it exists. Subscription ids |
| * apply only to PSTN/SIM card phone accounts so all other accounts should not have a |
| * subscription id. |
| * @param accountHandle The handle for the phone account for which to retrieve the |
| * subscription id. |
| * @return The value of the subscription id or -1 if it does not exist or is not valid. |
| */ |
| public int getSubscriptionIdForPhoneAccount(PhoneAccountHandle accountHandle) { |
| PhoneAccount account = getPhoneAccount(accountHandle); |
| if (account == null || !account.hasCapabilities(PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION) || |
| !TextUtils.isDigitsOnly(accountHandle.getId())) { |
| // Since no decimals or negative numbers can be valid subscription ids, only a string of |
| // numbers can be subscription id |
| return SubscriptionManager.INVALID_SUB_ID; |
| } |
| return Integer.parseInt(accountHandle.getId()); |
| } |
| |
| /** |
| * Retrieves the default outgoing phone account supporting the specified uriScheme. |
| * @param uriScheme The URI scheme for the outgoing call. |
| * @return The {@link PhoneAccountHandle} to use. |
| */ |
| public PhoneAccountHandle getDefaultOutgoingPhoneAccount(String uriScheme) { |
| final PhoneAccountHandle userSelected = getUserSelectedOutgoingPhoneAccount(); |
| |
| if (userSelected != null) { |
| // If there is a default PhoneAccount, ensure it supports calls to handles with the |
| // specified uriScheme. |
| final PhoneAccount userSelectedAccount = getPhoneAccount(userSelected); |
| if (userSelectedAccount.supportsUriScheme(uriScheme)) { |
| return userSelected; |
| } |
| } |
| |
| List<PhoneAccountHandle> outgoing = getCallCapablePhoneAccounts(uriScheme); |
| switch (outgoing.size()) { |
| case 0: |
| // There are no accounts, so there can be no default |
| return null; |
| case 1: |
| // There is only one account, which is by definition the default |
| return outgoing.get(0); |
| default: |
| // There are multiple accounts with no selected default |
| return null; |
| } |
| } |
| |
| PhoneAccountHandle getUserSelectedOutgoingPhoneAccount() { |
| if (TelephonyManager.getDefault().getPhoneCount() > 1) { |
| return getUserSelectedVoicePhoneAccount(); |
| } |
| |
| if (mState.defaultOutgoing != null) { |
| // Return the registered outgoing default iff it still exists (we keep a sticky |
| // default to survive account deletion and re-addition) |
| for (int i = 0; i < mState.accounts.size(); i++) { |
| if (mState.accounts.get(i).getAccountHandle().equals(mState.defaultOutgoing)) { |
| return mState.defaultOutgoing; |
| } |
| } |
| // At this point, there was a registered default but it has been deleted; proceed |
| // as though there were no default |
| } |
| return null; |
| } |
| |
| PhoneAccountHandle getUserSelectedVoicePhoneAccount() { |
| long voiceSubId = SubscriptionManager.getDefaultVoiceSubId(); |
| boolean isVoicePrompt = SubscriptionManager.isVoicePromptEnabled(); |
| PhoneAccountHandle prefPhoneAccount = null; |
| |
| Log.i(this, "getUserSelVoicePhoneAccount, voice subId = " + voiceSubId |
| + " prompt = " + isVoicePrompt); |
| if (!isVoicePrompt) { |
| for (int i = 0; i < mState.accounts.size(); i++) { |
| String id = mState.accounts.get(i).getAccountHandle().getId(); |
| |
| // emergency account present return it |
| if (id.equals("E")) { |
| Log.i(this, "getUserSelVoicePhoneAccount, emergency account "); |
| return mState.accounts.get(i).getAccountHandle(); |
| } |
| long subId = voiceSubId; |
| try { |
| subId = Long.parseLong(id); |
| } catch (NumberFormatException e) { |
| Log.w(this, " NumberFormatException " + e); |
| } |
| Log.i(this, "getUserSelectedVoicePhoneAccount, voice subId = " |
| + voiceSubId + " subId = " + subId + " mId = " + id); |
| if (subId == voiceSubId) { |
| prefPhoneAccount = mState.accounts.get(i).getAccountHandle(); |
| break; |
| } |
| } |
| } |
| |
| return prefPhoneAccount; |
| } |
| |
| public void setUserSelectedOutgoingPhoneAccount(PhoneAccountHandle accountHandle) { |
| if (accountHandle == null) { |
| // Asking to clear the default outgoing is a valid request |
| mState.defaultOutgoing = null; |
| } else { |
| boolean found = false; |
| for (PhoneAccount m : mState.accounts) { |
| if (Objects.equals(accountHandle, m.getAccountHandle())) { |
| found = true; |
| break; |
| } |
| } |
| |
| if (!found) { |
| Log.w(this, "Trying to set nonexistent default outgoing %s", |
| accountHandle); |
| return; |
| } |
| |
| if (!getPhoneAccount(accountHandle).hasCapabilities( |
| PhoneAccount.CAPABILITY_CALL_PROVIDER)) { |
| Log.w(this, "Trying to set non-call-provider default outgoing %s", |
| accountHandle); |
| return; |
| } |
| |
| if (getPhoneAccount(accountHandle).hasCapabilities( |
| PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION)) { |
| // If the account selected is a SIM account, propagate down to the subscription |
| // record. |
| long subId = getSubscriptionIdForPhoneAccount(accountHandle); |
| SubscriptionManager.setDefaultVoiceSubId(subId); |
| } |
| |
| mState.defaultOutgoing = accountHandle; |
| } |
| |
| setDefaultVoicePhoneAccount(mState.defaultOutgoing); |
| write(); |
| fireDefaultOutgoingChanged(); |
| } |
| |
| boolean isUserSelectedSmsPhoneAccount(PhoneAccountHandle accountHandle) { |
| return getSubscriptionIdForPhoneAccount(accountHandle) == |
| SubscriptionManager.getDefaultSmsSubId(); |
| } |
| |
| private void setDefaultVoicePhoneAccount(PhoneAccountHandle accountHandle) { |
| boolean voicePrompt = SubscriptionManager.isVoicePromptEnabled(); |
| Log.d(this, "set voice default, prompt = " + voicePrompt); |
| |
| if (mState.defaultOutgoing == null) { |
| List<PhoneAccountHandle> outgoing = getCallCapablePhoneAccounts(); |
| if ((outgoing != null) && (outgoing.size() > 1) && (voicePrompt != true)) { |
| SubscriptionManager.setVoicePromptEnabled(true); |
| } |
| } else { |
| String id = mState.defaultOutgoing.getId(); |
| // Return from here, only emergency account available |
| if (id.equals("E")) { |
| Log.i(this, "setDefaultVoicePhoneAccount, only emergency account present "); |
| return; |
| } |
| Long subId = SubscriptionManager.getDefaultVoiceSubId(); |
| try { |
| subId = Long.parseLong(mState.defaultOutgoing.getId()); |
| } catch (NumberFormatException e) { |
| Log.w(this, " NumberFormatException " + e); |
| } |
| Log.i(this, "set voice default subId as " + subId + " prmotp = " + voicePrompt); |
| if (SubscriptionManager.getDefaultVoiceSubId() != subId) { |
| SubscriptionManager.setDefaultVoiceSubId(subId); |
| } |
| if (voicePrompt == true) { |
| SubscriptionManager.setVoicePromptEnabled(false); |
| } |
| } |
| } |
| |
| public void setSimCallManager(PhoneAccountHandle callManager) { |
| if (callManager != null) { |
| PhoneAccount callManagerAccount = getPhoneAccount(callManager); |
| if (callManagerAccount == null) { |
| Log.d(this, "setSimCallManager: Nonexistent call manager: %s", callManager); |
| return; |
| } else if (!callManagerAccount.hasCapabilities( |
| PhoneAccount.CAPABILITY_CONNECTION_MANAGER)) { |
| Log.d(this, "setSimCallManager: Not a call manager: %s", callManagerAccount); |
| return; |
| } |
| } else { |
| callManager = NO_ACCOUNT_SELECTED; |
| } |
| mState.simCallManager = callManager; |
| |
| write(); |
| fireSimCallManagerChanged(); |
| } |
| |
| public PhoneAccountHandle getSimCallManager() { |
| if (mState.simCallManager != null) { |
| if (NO_ACCOUNT_SELECTED.equals(mState.simCallManager)) { |
| return null; |
| } |
| // Return the registered sim call manager iff it still exists (we keep a sticky |
| // setting to survive account deletion and re-addition) |
| for (int i = 0; i < mState.accounts.size(); i++) { |
| if (mState.accounts.get(i).getAccountHandle().equals(mState.simCallManager)) { |
| return mState.simCallManager; |
| } |
| } |
| } |
| |
| // See if the OEM has specified a default one. |
| String defaultConnectionMgr = |
| mContext.getResources().getString(R.string.default_connection_manager_component); |
| if (!TextUtils.isEmpty(defaultConnectionMgr)) { |
| PackageManager pm = mContext.getPackageManager(); |
| |
| ComponentName componentName = ComponentName.unflattenFromString(defaultConnectionMgr); |
| Intent intent = new Intent(ConnectionService.SERVICE_INTERFACE); |
| intent.setComponent(componentName); |
| |
| // Make sure that the component can be resolved. |
| List<ResolveInfo> resolveInfos = pm.queryIntentServices(intent, 0); |
| if (!resolveInfos.isEmpty()) { |
| // See if there is registered PhoneAccount by this component. |
| List<PhoneAccountHandle> handles = getAllPhoneAccountHandles(); |
| for (PhoneAccountHandle handle : handles) { |
| if (componentName.equals(handle.getComponentName())) { |
| return handle; |
| } |
| } |
| Log.d(this, "%s does not have a PhoneAccount; not using as default", componentName); |
| } else { |
| Log.d(this, "%s could not be resolved; not using as default", componentName); |
| } |
| } else { |
| Log.v(this, "No default connection manager specified"); |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Retrieves a list of all {@link PhoneAccountHandle}s registered. |
| * |
| * @return The list of {@link PhoneAccountHandle}s. |
| */ |
| public List<PhoneAccountHandle> getAllPhoneAccountHandles() { |
| List<PhoneAccountHandle> accountHandles = new ArrayList<>(); |
| for (PhoneAccount m : mState.accounts) { |
| accountHandles.add(m.getAccountHandle()); |
| } |
| return accountHandles; |
| } |
| |
| public List<PhoneAccount> getAllPhoneAccounts() { |
| return new ArrayList<>(mState.accounts); |
| } |
| |
| /** |
| * Determines the number of all {@link PhoneAccount}s. |
| * |
| * @return The total number {@link PhoneAccount}s. |
| */ |
| public int getAllPhoneAccountsCount() { |
| return mState.accounts.size(); |
| } |
| |
| /** |
| * Retrieves a list of all call provider phone accounts. |
| * |
| * @return The phone account handles. |
| */ |
| public List<PhoneAccountHandle> getCallCapablePhoneAccounts() { |
| return getPhoneAccountHandles(PhoneAccount.CAPABILITY_CALL_PROVIDER); |
| } |
| |
| /** |
| * Retrieves a list of all phone account call provider phone accounts supporting the |
| * specified URI scheme. |
| * |
| * @param uriScheme The URI scheme. |
| * @return The phone account handles. |
| */ |
| public List<PhoneAccountHandle> getCallCapablePhoneAccounts(String uriScheme) { |
| return getPhoneAccountHandles(PhoneAccount.CAPABILITY_CALL_PROVIDER, uriScheme); |
| } |
| |
| /** |
| * Retrieves a list of all phone accounts registered by a specified package. |
| * |
| * @param packageName The name of the package that registered the phone accounts. |
| * @return The phone account handles. |
| */ |
| public List<PhoneAccountHandle> getPhoneAccountsForPackage(String packageName) { |
| List<PhoneAccountHandle> accountHandles = new ArrayList<>(); |
| for (PhoneAccount m : mState.accounts) { |
| if (Objects.equals( |
| packageName, |
| m.getAccountHandle().getComponentName().getPackageName())) { |
| accountHandles.add(m.getAccountHandle()); |
| } |
| } |
| return accountHandles; |
| } |
| |
| /** |
| * Retrieves a list of all phone account handles with the connection manager capability. |
| * |
| * @return The phone account handles. |
| */ |
| public List<PhoneAccountHandle> getConnectionManagerPhoneAccounts() { |
| return getPhoneAccountHandles(PhoneAccount.CAPABILITY_CONNECTION_MANAGER, |
| null /* supportedUriScheme */); |
| } |
| |
| public PhoneAccount getPhoneAccount(PhoneAccountHandle handle) { |
| for (PhoneAccount m : mState.accounts) { |
| if (Objects.equals(handle, m.getAccountHandle())) { |
| return m; |
| } |
| } |
| return null; |
| } |
| |
| // TODO: Should we implement an artificial limit for # of accounts associated with a single |
| // ComponentName? |
| public void registerPhoneAccount(PhoneAccount account) { |
| // Enforce the requirement that a connection service for a phone account has the correct |
| // permission. |
| if (!phoneAccountHasPermission(account.getAccountHandle())) { |
| Log.w(this, "Phone account %s does not have BIND_CONNECTION_SERVICE permission.", |
| account.getAccountHandle()); |
| throw new SecurityException( |
| "PhoneAccount connection service requires BIND_CONNECTION_SERVICE permission."); |
| } |
| |
| addOrReplacePhoneAccount(account); |
| } |
| |
| /** |
| * Adds a {@code PhoneAccount}, replacing an existing one if found. |
| * |
| * @param account The {@code PhoneAccount} to add or replace. |
| */ |
| private void addOrReplacePhoneAccount(PhoneAccount account) { |
| mState.accounts.add(account); |
| // Search for duplicates and remove any that are found. |
| for (int i = 0; i < mState.accounts.size() - 1; i++) { |
| if (Objects.equals( |
| account.getAccountHandle(), mState.accounts.get(i).getAccountHandle())) { |
| // replace existing entry. |
| mState.accounts.remove(i); |
| break; |
| } |
| } |
| |
| write(); |
| fireAccountsChanged(); |
| } |
| |
| public void unregisterPhoneAccount(PhoneAccountHandle accountHandle) { |
| for (int i = 0; i < mState.accounts.size(); i++) { |
| if (Objects.equals(accountHandle, mState.accounts.get(i).getAccountHandle())) { |
| mState.accounts.remove(i); |
| break; |
| } |
| } |
| |
| write(); |
| fireAccountsChanged(); |
| } |
| |
| /** |
| * Un-registers all phone accounts associated with a specified package. |
| * |
| * @param packageName The package for which phone accounts will be removed. |
| */ |
| public void clearAccounts(String packageName) { |
| boolean accountsRemoved = false; |
| Iterator<PhoneAccount> it = mState.accounts.iterator(); |
| while (it.hasNext()) { |
| PhoneAccount phoneAccount = it.next(); |
| if (Objects.equals( |
| packageName, |
| phoneAccount.getAccountHandle().getComponentName().getPackageName())) { |
| Log.i(this, "Removing phone account " + phoneAccount.getLabel()); |
| it.remove(); |
| accountsRemoved = true; |
| } |
| } |
| |
| if (accountsRemoved) { |
| write(); |
| fireAccountsChanged(); |
| } |
| } |
| |
| public boolean isVoiceMailNumber(PhoneAccountHandle accountHandle, String number) { |
| int subId = getSubscriptionIdForPhoneAccount(accountHandle); |
| return PhoneNumberUtils.isVoiceMailNumber(subId, number); |
| } |
| |
| public void addListener(Listener l) { |
| mListeners.add(l); |
| } |
| |
| public void removeListener(Listener l) { |
| if (l != null) { |
| mListeners.remove(l); |
| } |
| } |
| |
| private void fireAccountsChanged() { |
| for (Listener l : mListeners) { |
| l.onAccountsChanged(this); |
| } |
| } |
| |
| private void fireDefaultOutgoingChanged() { |
| for (Listener l : mListeners) { |
| l.onDefaultOutgoingChanged(this); |
| } |
| } |
| |
| private void fireSimCallManagerChanged() { |
| for (Listener l : mListeners) { |
| l.onSimCallManagerChanged(this); |
| } |
| } |
| |
| /** |
| * Determines if the connection service specified by a {@link PhoneAccountHandle} has the |
| * {@link Manifest.permission#BIND_CONNECTION_SERVICE} permission. |
| * |
| * @param phoneAccountHandle The phone account to check. |
| * @return {@code True} if the phone account has permission. |
| */ |
| public boolean phoneAccountHasPermission(PhoneAccountHandle phoneAccountHandle) { |
| PackageManager packageManager = mContext.getPackageManager(); |
| try { |
| ServiceInfo serviceInfo = packageManager.getServiceInfo( |
| phoneAccountHandle.getComponentName(), 0); |
| |
| return serviceInfo.permission != null && |
| serviceInfo.permission.equals(Manifest.permission.BIND_CONNECTION_SERVICE); |
| } catch (PackageManager.NameNotFoundException e) { |
| Log.w(this, "Name not found %s", e); |
| return false; |
| } |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| /** |
| * Returns a list of phone account handles with the specified flag. |
| * |
| * @param flags Flags which the {@code PhoneAccount} must have. |
| */ |
| private List<PhoneAccountHandle> getPhoneAccountHandles(int flags) { |
| return getPhoneAccountHandles(flags, null); |
| } |
| |
| /** |
| * Returns a list of phone account handles with the specified flag, supporting the specified |
| * URI scheme. |
| * |
| * @param flags Flags which the {@code PhoneAccount} must have. |
| * @param uriScheme URI schemes the PhoneAccount must handle. {@code Null} bypasses the |
| * URI scheme check. |
| */ |
| private List<PhoneAccountHandle> getPhoneAccountHandles(int flags, String uriScheme) { |
| List<PhoneAccountHandle> accountHandles = new ArrayList<>(); |
| for (PhoneAccount m : mState.accounts) { |
| if (m.hasCapabilities(flags) && (uriScheme == null || m.supportsUriScheme(uriScheme))) { |
| accountHandles.add(m.getAccountHandle()); |
| } |
| } |
| return accountHandles; |
| } |
| |
| /** |
| * The state of this {@code PhoneAccountRegistrar}. |
| */ |
| @VisibleForTesting |
| public static class State { |
| /** |
| * The account selected by the user to be employed by default for making outgoing calls. |
| * If the user has not made such a selection, then this is null. |
| */ |
| public PhoneAccountHandle defaultOutgoing = null; |
| |
| /** |
| * A {@code PhoneAccount} having {@link PhoneAccount#CAPABILITY_CONNECTION_MANAGER} which |
| * manages and optimizes a user's PSTN SIM connections. |
| */ |
| public PhoneAccountHandle simCallManager; |
| |
| /** |
| * The complete list of {@code PhoneAccount}s known to the Telecom subsystem. |
| */ |
| public final List<PhoneAccount> accounts = new ArrayList<>(); |
| |
| /** |
| * The version number of the State data. |
| */ |
| public int versionNumber; |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////// |
| // |
| // State management |
| // |
| |
| private void write() { |
| final FileOutputStream os; |
| try { |
| os = mAtomicFile.startWrite(); |
| boolean success = false; |
| try { |
| XmlSerializer serializer = new FastXmlSerializer(); |
| serializer.setOutput(new BufferedOutputStream(os), "utf-8"); |
| writeToXml(mState, serializer); |
| serializer.flush(); |
| success = true; |
| } finally { |
| if (success) { |
| mAtomicFile.finishWrite(os); |
| } else { |
| mAtomicFile.failWrite(os); |
| } |
| } |
| } catch (IOException e) { |
| Log.e(this, e, "Writing state to XML file"); |
| } |
| } |
| |
| private void read() { |
| final InputStream is; |
| try { |
| is = mAtomicFile.openRead(); |
| } catch (FileNotFoundException ex) { |
| return; |
| } |
| |
| boolean versionChanged = false; |
| |
| XmlPullParser parser; |
| try { |
| parser = Xml.newPullParser(); |
| parser.setInput(new BufferedInputStream(is), null); |
| parser.nextTag(); |
| mState = readFromXml(parser, mContext); |
| versionChanged = mState.versionNumber < EXPECTED_STATE_VERSION; |
| |
| } catch (IOException | XmlPullParserException e) { |
| Log.e(this, e, "Reading state from XML file"); |
| mState = new State(); |
| } finally { |
| try { |
| is.close(); |
| } catch (IOException e) { |
| Log.e(this, e, "Closing InputStream"); |
| } |
| } |
| |
| // If an upgrade occurred, write out the changed data. |
| if (versionChanged) { |
| write(); |
| } |
| } |
| |
| private static void writeToXml(State state, XmlSerializer serializer) |
| throws IOException { |
| sStateXml.writeToXml(state, serializer); |
| } |
| |
| private static State readFromXml(XmlPullParser parser, Context context) |
| throws IOException, XmlPullParserException { |
| State s = sStateXml.readFromXml(parser, 0, context); |
| return s != null ? s : new State(); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////////////////////// |
| // |
| // XML serialization |
| // |
| |
| @VisibleForTesting |
| public abstract static class XmlSerialization<T> { |
| private static final String LENGTH_ATTRIBUTE = "length"; |
| private static final String VALUE_TAG = "value"; |
| |
| /** |
| * Write the supplied object to XML |
| */ |
| public abstract void writeToXml(T o, XmlSerializer serializer) |
| throws IOException; |
| |
| /** |
| * Read from the supplied XML into a new object, returning null in case of an |
| * unrecoverable schema mismatch or other data error. 'parser' must be already |
| * positioned at the first tag that is expected to have been emitted by this |
| * object's writeToXml(). This object tries to fail early without modifying |
| * 'parser' if it does not recognize the data it sees. |
| */ |
| public abstract T readFromXml(XmlPullParser parser, int version, Context context) |
| throws IOException, XmlPullParserException; |
| |
| protected void writeTextSafely(String tagName, Object value, XmlSerializer serializer) |
| throws IOException { |
| if (value != null) { |
| serializer.startTag(null, tagName); |
| serializer.text(Objects.toString(value)); |
| serializer.endTag(null, tagName); |
| } |
| } |
| |
| /** |
| * Serializes a string array. |
| * |
| * @param tagName The tag name for the string array. |
| * @param values The string values to serialize. |
| * @param serializer The serializer. |
| * @throws IOException |
| */ |
| protected void writeStringList(String tagName, List<String> values, |
| XmlSerializer serializer) |
| throws IOException { |
| |
| serializer.startTag(null, tagName); |
| if (values != null) { |
| serializer.attribute(null, LENGTH_ATTRIBUTE, Objects.toString(values.size())); |
| for (String toSerialize : values) { |
| serializer.startTag(null, VALUE_TAG); |
| if (toSerialize != null ){ |
| serializer.text(toSerialize); |
| } |
| serializer.endTag(null, VALUE_TAG); |
| } |
| } else { |
| serializer.attribute(null, LENGTH_ATTRIBUTE, "0"); |
| } |
| serializer.endTag(null, tagName); |
| |
| } |
| |
| /** |
| * Reads a string array from the XML parser. |
| * |
| * @param parser The XML parser. |
| * @return String array containing the parsed values. |
| * @throws IOException Exception related to IO. |
| * @throws XmlPullParserException Exception related to parsing. |
| */ |
| protected List<String> readStringList(XmlPullParser parser) |
| throws IOException, XmlPullParserException { |
| |
| int length = Integer.parseInt(parser.getAttributeValue(null, LENGTH_ATTRIBUTE)); |
| List<String> arrayEntries = new ArrayList<String>(length); |
| String value = null; |
| |
| if (length == 0) { |
| return arrayEntries; |
| } |
| |
| int outerDepth = parser.getDepth(); |
| while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| if (parser.getName().equals(VALUE_TAG)) { |
| parser.next(); |
| value = parser.getText(); |
| arrayEntries.add(value); |
| } |
| } |
| |
| return arrayEntries; |
| } |
| } |
| |
| @VisibleForTesting |
| public static final XmlSerialization<State> sStateXml = |
| new XmlSerialization<State>() { |
| private static final String CLASS_STATE = "phone_account_registrar_state"; |
| private static final String DEFAULT_OUTGOING = "default_outgoing"; |
| private static final String SIM_CALL_MANAGER = "sim_call_manager"; |
| private static final String ACCOUNTS = "accounts"; |
| private static final String VERSION = "version"; |
| |
| @Override |
| public void writeToXml(State o, XmlSerializer serializer) |
| throws IOException { |
| if (o != null) { |
| serializer.startTag(null, CLASS_STATE); |
| serializer.attribute(null, VERSION, Objects.toString(EXPECTED_STATE_VERSION)); |
| |
| if (o.defaultOutgoing != null) { |
| serializer.startTag(null, DEFAULT_OUTGOING); |
| sPhoneAccountHandleXml.writeToXml(o.defaultOutgoing, serializer); |
| serializer.endTag(null, DEFAULT_OUTGOING); |
| } |
| |
| if (o.simCallManager != null) { |
| serializer.startTag(null, SIM_CALL_MANAGER); |
| sPhoneAccountHandleXml.writeToXml(o.simCallManager, serializer); |
| serializer.endTag(null, SIM_CALL_MANAGER); |
| } |
| |
| serializer.startTag(null, ACCOUNTS); |
| for (PhoneAccount m : o.accounts) { |
| sPhoneAccountXml.writeToXml(m, serializer); |
| } |
| serializer.endTag(null, ACCOUNTS); |
| |
| serializer.endTag(null, CLASS_STATE); |
| } |
| } |
| |
| @Override |
| public State readFromXml(XmlPullParser parser, int version, Context context) |
| throws IOException, XmlPullParserException { |
| if (parser.getName().equals(CLASS_STATE)) { |
| State s = new State(); |
| |
| String rawVersion = parser.getAttributeValue(null, VERSION); |
| s.versionNumber = TextUtils.isEmpty(rawVersion) ? 1 : |
| Integer.parseInt(rawVersion); |
| |
| int outerDepth = parser.getDepth(); |
| while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| if (parser.getName().equals(DEFAULT_OUTGOING)) { |
| parser.nextTag(); |
| s.defaultOutgoing = sPhoneAccountHandleXml.readFromXml(parser, |
| s.versionNumber, context); |
| } else if (parser.getName().equals(SIM_CALL_MANAGER)) { |
| parser.nextTag(); |
| s.simCallManager = sPhoneAccountHandleXml.readFromXml(parser, |
| s.versionNumber, context); |
| } else if (parser.getName().equals(ACCOUNTS)) { |
| int accountsDepth = parser.getDepth(); |
| while (XmlUtils.nextElementWithin(parser, accountsDepth)) { |
| PhoneAccount account = sPhoneAccountXml.readFromXml(parser, |
| s.versionNumber, context); |
| |
| if (account != null && s.accounts != null) { |
| s.accounts.add(account); |
| } |
| } |
| } |
| } |
| return s; |
| } |
| return null; |
| } |
| }; |
| |
| @VisibleForTesting |
| public static final XmlSerialization<PhoneAccount> sPhoneAccountXml = |
| new XmlSerialization<PhoneAccount>() { |
| private static final String CLASS_PHONE_ACCOUNT = "phone_account"; |
| private static final String ACCOUNT_HANDLE = "account_handle"; |
| private static final String ADDRESS = "handle"; |
| private static final String SUBSCRIPTION_ADDRESS = "subscription_number"; |
| private static final String CAPABILITIES = "capabilities"; |
| private static final String ICON_RES_ID = "icon_res_id"; |
| private static final String COLOR = "color"; |
| private static final String LABEL = "label"; |
| private static final String SHORT_DESCRIPTION = "short_description"; |
| private static final String SUPPORTED_URI_SCHEMES = "supported_uri_schemes"; |
| private static final String TRUE = "true"; |
| private static final String FALSE = "false"; |
| |
| @Override |
| public void writeToXml(PhoneAccount o, XmlSerializer serializer) |
| throws IOException { |
| if (o != null) { |
| serializer.startTag(null, CLASS_PHONE_ACCOUNT); |
| |
| if (o.getAccountHandle() != null) { |
| serializer.startTag(null, ACCOUNT_HANDLE); |
| sPhoneAccountHandleXml.writeToXml(o.getAccountHandle(), serializer); |
| serializer.endTag(null, ACCOUNT_HANDLE); |
| } |
| |
| writeTextSafely(ADDRESS, o.getAddress(), serializer); |
| writeTextSafely(SUBSCRIPTION_ADDRESS, o.getSubscriptionAddress(), serializer); |
| writeTextSafely(CAPABILITIES, Integer.toString(o.getCapabilities()), serializer); |
| writeTextSafely(ICON_RES_ID, Integer.toString(o.getIconResId()), serializer); |
| writeTextSafely(COLOR, Integer.toString(o.getColor()), serializer); |
| writeTextSafely(LABEL, o.getLabel(), serializer); |
| writeTextSafely(SHORT_DESCRIPTION, o.getShortDescription(), serializer); |
| writeStringList(SUPPORTED_URI_SCHEMES, o.getSupportedUriSchemes(), serializer); |
| |
| serializer.endTag(null, CLASS_PHONE_ACCOUNT); |
| } |
| } |
| |
| public PhoneAccount readFromXml(XmlPullParser parser, int version, Context context) |
| throws IOException, XmlPullParserException { |
| if (parser.getName().equals(CLASS_PHONE_ACCOUNT)) { |
| int outerDepth = parser.getDepth(); |
| PhoneAccountHandle accountHandle = null; |
| Uri address = null; |
| Uri subscriptionAddress = null; |
| int capabilities = 0; |
| int iconResId = 0; |
| int color = 0; |
| String label = null; |
| String shortDescription = null; |
| List<String> supportedUriSchemes = null; |
| |
| while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| if (parser.getName().equals(ACCOUNT_HANDLE)) { |
| parser.nextTag(); |
| accountHandle = sPhoneAccountHandleXml.readFromXml(parser, version, |
| context); |
| } else if (parser.getName().equals(ADDRESS)) { |
| parser.next(); |
| address = Uri.parse(parser.getText()); |
| } else if (parser.getName().equals(SUBSCRIPTION_ADDRESS)) { |
| parser.next(); |
| String nextText = parser.getText(); |
| subscriptionAddress = nextText == null ? null : Uri.parse(nextText); |
| } else if (parser.getName().equals(CAPABILITIES)) { |
| parser.next(); |
| capabilities = Integer.parseInt(parser.getText()); |
| } else if (parser.getName().equals(ICON_RES_ID)) { |
| parser.next(); |
| iconResId = Integer.parseInt(parser.getText()); |
| } else if (parser.getName().equals(COLOR)) { |
| parser.next(); |
| color = Integer.parseInt(parser.getText()); |
| } else if (parser.getName().equals(LABEL)) { |
| parser.next(); |
| label = parser.getText(); |
| } else if (parser.getName().equals(SHORT_DESCRIPTION)) { |
| parser.next(); |
| shortDescription = parser.getText(); |
| } else if (parser.getName().equals(SUPPORTED_URI_SCHEMES)) { |
| supportedUriSchemes = readStringList(parser); |
| } |
| } |
| |
| // Upgrade older phone accounts to specify the supported URI schemes. |
| if (version < 2) { |
| ComponentName sipComponentName = new ComponentName("com.android.phone", |
| "com.android.services.telephony.sip.SipConnectionService"); |
| |
| supportedUriSchemes = new ArrayList<>(); |
| |
| // Handle the SIP connection service. |
| // Check the system settings to see if it also should handle "tel" calls. |
| if (accountHandle.getComponentName().equals(sipComponentName)) { |
| boolean useSipForPstn = useSipForPstnCalls(context); |
| supportedUriSchemes.add(PhoneAccount.SCHEME_SIP); |
| if (useSipForPstn) { |
| supportedUriSchemes.add(PhoneAccount.SCHEME_TEL); |
| } |
| } else { |
| supportedUriSchemes.add(PhoneAccount.SCHEME_TEL); |
| supportedUriSchemes.add(PhoneAccount.SCHEME_VOICEMAIL); |
| } |
| } |
| |
| return PhoneAccount.builder(accountHandle, label) |
| .setAddress(address) |
| .setSubscriptionAddress(subscriptionAddress) |
| .setCapabilities(capabilities) |
| .setIconResId(iconResId) |
| .setColor(color) |
| .setShortDescription(shortDescription) |
| .setSupportedUriSchemes(supportedUriSchemes) |
| .build(); |
| } |
| return null; |
| } |
| |
| /** |
| * Determines if the SIP call settings specify to use SIP for all calls, including PSTN calls. |
| * |
| * @param context The context. |
| * @return {@code True} if SIP should be used for all calls. |
| */ |
| private boolean useSipForPstnCalls(Context context) { |
| String option = Settings.System.getString(context.getContentResolver(), |
| Settings.System.SIP_CALL_OPTIONS); |
| option = (option != null) ? option : Settings.System.SIP_ADDRESS_ONLY; |
| return option.equals(Settings.System.SIP_ALWAYS); |
| } |
| }; |
| |
| @VisibleForTesting |
| public static final XmlSerialization<PhoneAccountHandle> sPhoneAccountHandleXml = |
| new XmlSerialization<PhoneAccountHandle>() { |
| private static final String CLASS_PHONE_ACCOUNT_HANDLE = "phone_account_handle"; |
| private static final String COMPONENT_NAME = "component_name"; |
| private static final String ID = "id"; |
| |
| @Override |
| public void writeToXml(PhoneAccountHandle o, XmlSerializer serializer) |
| throws IOException { |
| if (o != null) { |
| serializer.startTag(null, CLASS_PHONE_ACCOUNT_HANDLE); |
| |
| if (o.getComponentName() != null) { |
| writeTextSafely( |
| COMPONENT_NAME, o.getComponentName().flattenToString(), serializer); |
| } |
| |
| writeTextSafely(ID, o.getId(), serializer); |
| |
| serializer.endTag(null, CLASS_PHONE_ACCOUNT_HANDLE); |
| } |
| } |
| |
| @Override |
| public PhoneAccountHandle readFromXml(XmlPullParser parser, int version, Context context) |
| throws IOException, XmlPullParserException { |
| if (parser.getName().equals(CLASS_PHONE_ACCOUNT_HANDLE)) { |
| String componentNameString = null; |
| String idString = null; |
| int outerDepth = parser.getDepth(); |
| while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| if (parser.getName().equals(COMPONENT_NAME)) { |
| parser.next(); |
| componentNameString = parser.getText(); |
| } else if (parser.getName().equals(ID)) { |
| parser.next(); |
| idString = parser.getText(); |
| } |
| } |
| if (componentNameString != null) { |
| return new PhoneAccountHandle( |
| ComponentName.unflattenFromString(componentNameString), |
| idString); |
| } |
| } |
| return null; |
| } |
| }; |
| } |