/*
* Copyright (C) 2008 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.settings.accounts;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.accounts.AuthenticatorDescription;
import android.app.ActionBar;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Intent;
import android.content.SyncAdapterType;
import android.content.SyncInfo;
import android.content.SyncStatusInfo;
import android.content.pm.ActivityInfo;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.UserHandle;
import android.support.v7.preference.Preference;
import android.support.v7.preference.Preference.OnPreferenceClickListener;
import android.support.v7.preference.PreferenceScreen;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import com.android.internal.logging.MetricsProto.MetricsEvent;
import com.android.settings.AccountPreference;
import com.android.settings.R;
import com.android.settings.SettingsActivity;
import com.android.settings.Utils;
import com.android.settings.location.LocationSettings;
import com.android.settingslib.accounts.AuthenticatorHelper;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import static android.content.Intent.EXTRA_USER;
/** Manages settings for Google Account. */
public class ManageAccountsSettings extends AccountPreferenceBase
implements AuthenticatorHelper.OnAccountsUpdateListener {
private static final String ACCOUNT_KEY = "account"; // to pass to auth settings
public static final String KEY_ACCOUNT_TYPE = "account_type";
public static final String KEY_ACCOUNT_LABEL = "account_label";
// Action name for the broadcast intent when the Google account preferences page is launching
// the location settings.
private static final String LAUNCHING_LOCATION_SETTINGS =
"com.android.settings.accounts.LAUNCHING_LOCATION_SETTINGS";
private static final int MENU_SYNC_NOW_ID = Menu.FIRST;
private static final int MENU_SYNC_CANCEL_ID = Menu.FIRST + 1;
private static final int REQUEST_SHOW_SYNC_SETTINGS = 1;
private String[] mAuthorities;
private TextView mErrorInfoView;
// If an account type is set, then show only accounts of that type
private String mAccountType;
// Temporary hack, to deal with backward compatibility
// mFirstAccount is used for the injected preferences
private Account mFirstAccount;
@Override
protected int getMetricsCategory() {
return MetricsEvent.ACCOUNTS_MANAGE_ACCOUNTS;
}
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
Bundle args = getArguments();
if (args != null && args.containsKey(KEY_ACCOUNT_TYPE)) {
mAccountType = args.getString(KEY_ACCOUNT_TYPE);
}
addPreferencesFromResource(R.xml.manage_accounts_settings);
setHasOptionsMenu(true);
}
@Override
public void onResume() {
super.onResume();
mAuthenticatorHelper.listenToAccountUpdates();
updateAuthDescriptions();
showAccountsIfNeeded();
showSyncState();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.manage_accounts_screen, container, false);
final ViewGroup prefs_container = (ViewGroup) view.findViewById(R.id.prefs_container);
Utils.prepareCustomPreferencesList(container, view, prefs_container, false);
View prefs = super.onCreateView(inflater, prefs_container, savedInstanceState);
prefs_container.addView(prefs);
return view;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
final Activity activity = getActivity();
final View view = getView();
mErrorInfoView = (TextView)view.findViewById(R.id.sync_settings_error_info);
mErrorInfoView.setVisibility(View.GONE);
mAuthorities = activity.getIntent().getStringArrayExtra(AUTHORITIES_FILTER_KEY);
Bundle args = getArguments();
if (args != null && args.containsKey(KEY_ACCOUNT_LABEL)) {
getActivity().setTitle(args.getString(KEY_ACCOUNT_LABEL));
}
}
@Override
public void onPause() {
super.onPause();
mAuthenticatorHelper.stopListeningToAccountUpdates();
}
@Override
public void onStop() {
super.onStop();
final Activity activity = getActivity();
activity.getActionBar().setDisplayOptions(0, ActionBar.DISPLAY_SHOW_CUSTOM);
activity.getActionBar().setCustomView(null);
}
@Override
public boolean onPreferenceTreeClick(Preference preference) {
if (preference instanceof AccountPreference) {
startAccountSettings((AccountPreference) preference);
} else {
return false;
}
return true;
}
private void startAccountSettings(AccountPreference acctPref) {
Bundle args = new Bundle();
args.putParcelable(AccountSyncSettings.ACCOUNT_KEY, acctPref.getAccount());
args.putParcelable(EXTRA_USER, mUserHandle);
((SettingsActivity) getActivity()).startPreferencePanel(
AccountSyncSettings.class.getCanonicalName(), args,
R.string.account_sync_settings_title, acctPref.getAccount().name,
this, REQUEST_SHOW_SYNC_SETTINGS);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
menu.add(0, MENU_SYNC_NOW_ID, 0, getString(R.string.sync_menu_sync_now))
.setIcon(R.drawable.ic_menu_refresh_holo_dark);
menu.add(0, MENU_SYNC_CANCEL_ID, 0, getString(R.string.sync_menu_sync_cancel))
.setIcon(com.android.internal.R.drawable.ic_menu_close_clear_cancel);
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public void onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
boolean syncActive = !ContentResolver.getCurrentSyncsAsUser(
mUserHandle.getIdentifier()).isEmpty();
menu.findItem(MENU_SYNC_NOW_ID).setVisible(!syncActive);
menu.findItem(MENU_SYNC_CANCEL_ID).setVisible(syncActive);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_SYNC_NOW_ID:
requestOrCancelSyncForAccounts(true);
return true;
case MENU_SYNC_CANCEL_ID:
requestOrCancelSyncForAccounts(false);
return true;
}
return super.onOptionsItemSelected(item);
}
private void requestOrCancelSyncForAccounts(boolean sync) {
final int userId = mUserHandle.getIdentifier();
SyncAdapterType[] syncAdapters = ContentResolver.getSyncAdapterTypesAsUser(userId);
Bundle extras = new Bundle();
extras.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
int count = getPreferenceScreen().getPreferenceCount();
// For each account
for (int i = 0; i < count; i++) {
Preference pref = getPreferenceScreen().getPreference(i);
if (pref instanceof AccountPreference) {
Account account = ((AccountPreference) pref).getAccount();
// For all available sync authorities, sync those that are enabled for the account
for (int j = 0; j < syncAdapters.length; j++) {
SyncAdapterType sa = syncAdapters[j];
if (syncAdapters[j].accountType.equals(mAccountType)
&& ContentResolver.getSyncAutomaticallyAsUser(account, sa.authority,
userId)) {
if (sync) {
ContentResolver.requestSyncAsUser(account, sa.authority, userId,
extras);
} else {
ContentResolver.cancelSyncAsUser(account, sa.authority, userId);
}
}
}
}
}
}
@Override
protected void onSyncStateUpdated() {
showSyncState();
// Catch any delayed delivery of update messages
final Activity activity = getActivity();
if (activity != null) {
activity.invalidateOptionsMenu();
}
}
/**
* Shows the sync state of the accounts. Note: it must be called after the accounts have been
* loaded, @see #showAccountsIfNeeded().
*/
private void showSyncState() {
// Catch any delayed delivery of update messages
if (getActivity() == null || getActivity().isFinishing()) return;
final int userId = mUserHandle.getIdentifier();
// iterate over all the preferences, setting the state properly for each
List<SyncInfo> currentSyncs = ContentResolver.getCurrentSyncsAsUser(userId);
boolean anySyncFailed = false; // true if sync on any account failed
Date date = new Date();
// only track userfacing sync adapters when deciding if account is synced or not
final SyncAdapterType[] syncAdapters = ContentResolver.getSyncAdapterTypesAsUser(userId);
HashSet<String> userFacing = new HashSet<String>();
for (int k = 0, n = syncAdapters.length; k < n; k++) {
final SyncAdapterType sa = syncAdapters[k];
if (sa.isUserVisible()) {
userFacing.add(sa.authority);
}
}
for (int i = 0, count = getPreferenceScreen().getPreferenceCount(); i < count; i++) {
Preference pref = getPreferenceScreen().getPreference(i);
if (! (pref instanceof AccountPreference)) {
continue;
}
AccountPreference accountPref = (AccountPreference) pref;
Account account = accountPref.getAccount();
int syncCount = 0;
long lastSuccessTime = 0;
boolean syncIsFailing = false;
final ArrayList<String> authorities = accountPref.getAuthorities();
boolean syncingNow = false;
if (authorities != null) {
for (String authority : authorities) {
SyncStatusInfo status = ContentResolver.getSyncStatusAsUser(account, authority,
userId);
boolean syncEnabled = isSyncEnabled(userId, account, authority);
boolean authorityIsPending = ContentResolver.isSyncPending(account, authority);
boolean activelySyncing = isSyncing(currentSyncs, account, authority);
boolean lastSyncFailed = status != null
&& syncEnabled
&& status.lastFailureTime != 0
&& status.getLastFailureMesgAsInt(0)
!= ContentResolver.SYNC_ERROR_SYNC_ALREADY_IN_PROGRESS;
if (lastSyncFailed && !activelySyncing && !authorityIsPending) {
syncIsFailing = true;
anySyncFailed = true;
}
syncingNow |= activelySyncing;
if (status != null && lastSuccessTime < status.lastSuccessTime) {
lastSuccessTime = status.lastSuccessTime;
}
syncCount += syncEnabled && userFacing.contains(authority) ? 1 : 0;
}
} else {
if (Log.isLoggable(TAG, Log.VERBOSE)) {
Log.v(TAG, "no syncadapters found for " + account);
}
}
if (syncIsFailing) {
accountPref.setSyncStatus(AccountPreference.SYNC_ERROR, true);
} else if (syncCount == 0) {
accountPref.setSyncStatus(AccountPreference.SYNC_DISABLED, true);
} else if (syncCount > 0) {
if (syncingNow) {
accountPref.setSyncStatus(AccountPreference.SYNC_IN_PROGRESS, true);
} else {
accountPref.setSyncStatus(AccountPreference.SYNC_ENABLED, true);
if (lastSuccessTime > 0) {
accountPref.setSyncStatus(AccountPreference.SYNC_ENABLED, false);
date.setTime(lastSuccessTime);
final String timeString = formatSyncDate(date);
accountPref.setSummary(getResources().getString(
R.string.last_synced, timeString));
}
}
} else {
accountPref.setSyncStatus(AccountPreference.SYNC_DISABLED, true);
}
}
mErrorInfoView.setVisibility(anySyncFailed ? View.VISIBLE : View.GONE);
}
private boolean isSyncing(List<SyncInfo> currentSyncs, Account account, String authority) {
final int count = currentSyncs.size();
for (int i = 0; i < count; i++) {
SyncInfo syncInfo = currentSyncs.get(i);
if (syncInfo.account.equals(account) && syncInfo.authority.equals(authority)) {
return true;
}
}
return false;
}
private boolean isSyncEnabled(int userId, Account account, String authority) {
return ContentResolver.getSyncAutomaticallyAsUser(account, authority, userId)
&& ContentResolver.getMasterSyncAutomaticallyAsUser(userId)
&& (ContentResolver.getIsSyncableAsUser(account, authority, userId) > 0);
}
@Override
public void onAccountsUpdate(UserHandle userHandle) {
showAccountsIfNeeded();
onSyncStateUpdated();
}
private void showAccountsIfNeeded() {
if (getActivity() == null) return;
Account[] accounts = AccountManager.get(getActivity()).getAccountsAsUser(
mUserHandle.getIdentifier());
getPreferenceScreen().removeAll();
mFirstAccount = null;
addPreferencesFromResource(R.xml.manage_accounts_settings);
for (int i = 0, n = accounts.length; i < n; i++) {
final Account account = accounts[i];
// If an account type is specified for this screen, skip other types
if (mAccountType != null && !account.type.equals(mAccountType)) continue;
final ArrayList<String> auths = getAuthoritiesForAccountType(account.type);
boolean showAccount = true;
if (mAuthorities != null && auths != null) {
showAccount = false;
for (String requestedAuthority : mAuthorities) {
if (auths.contains(requestedAuthority)) {
showAccount = true;
break;
}
}
}
if (showAccount) {
final Drawable icon = getDrawableForType(account.type);
final AccountPreference preference =
new AccountPreference(getPrefContext(), account, icon, auths, false);
getPreferenceScreen().addPreference(preference);
if (mFirstAccount == null) {
mFirstAccount = account;
}
}
}
if (mAccountType != null && mFirstAccount != null) {
addAuthenticatorSettings();
} else {
// There's no account, close activity
finish();
}
}
private void addAuthenticatorSettings() {
PreferenceScreen prefs = addPreferencesForType(mAccountType, getPreferenceScreen());
if (prefs != null) {
updatePreferenceIntents(prefs);
}
}
/** Listens to a preference click event and starts a fragment */
private class FragmentStarter
implements Preference.OnPreferenceClickListener {
private final String mClass;
private final int mTitleRes;
/**
* @param className the class name of the fragment to be started.
* @param title the title resource id of the started preference panel.
*/
public FragmentStarter(String className, int title) {
mClass = className;
mTitleRes = title;
}
@Override
public boolean onPreferenceClick(Preference preference) {
((SettingsActivity) getActivity()).startPreferencePanel(
mClass, null, mTitleRes, null, null, 0);
// Hack: announce that the Google account preferences page is launching the location
// settings
if (mClass.equals(LocationSettings.class.getName())) {
Intent intent = new Intent(LAUNCHING_LOCATION_SETTINGS);
getActivity().sendBroadcast(
intent, android.Manifest.permission.WRITE_SECURE_SETTINGS);
}
return true;
}
}
/**
* Filters through the preference list provided by GoogleLoginService.
*
* This method removes all the invalid intent from the list, adds account name as extra into the
* intent, and hack the location settings to start it as a fragment.
*/
private void updatePreferenceIntents(PreferenceScreen prefs) {
final PackageManager pm = getActivity().getPackageManager();
for (int i = 0; i < prefs.getPreferenceCount();) {
Preference pref = prefs.getPreference(i);
Intent intent = pref.getIntent();
if (intent != null) {
// Hack. Launch "Location" as fragment instead of as activity.
//
// When "Location" is launched as activity via Intent, there's no "Up" button at the
// top left, and if there's another running instance of "Location" activity, the
// back stack would usually point to some other place so the user won't be able to
// go back to the previous page by "back" key. Using fragment is a much easier
// solution to those problems.
//
// If we set Intent to null and assign a fragment to the PreferenceScreen item here,
// in order to make it work as expected, we still need to modify the container
// PreferenceActivity, override onPreferenceStartFragment() and call
// startPreferencePanel() there. In order to inject the title string there, more
// dirty further hack is still needed. It's much easier and cleaner to listen to
// preference click event here directly.
if (intent.getAction().equals(
android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS)) {
// The OnPreferenceClickListener overrides the click event completely. No intent
// will get fired.
pref.setOnPreferenceClickListener(new FragmentStarter(
LocationSettings.class.getName(),
R.string.location_settings_title));
} else {
ResolveInfo ri = pm.resolveActivityAsUser(intent,
PackageManager.MATCH_DEFAULT_ONLY, mUserHandle.getIdentifier());
if (ri == null) {
prefs.removePreference(pref);
continue;
} else {
intent.putExtra(ACCOUNT_KEY, mFirstAccount);
intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK);
pref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
@Override
public boolean onPreferenceClick(Preference preference) {
Intent prefIntent = preference.getIntent();
/*
* Check the intent to see if it resolves to a exported=false
* activity that doesn't share a uid with the authenticator.
*
* Otherwise the intent is considered unsafe in that it will be
* exploiting the fact that settings has system privileges.
*/
if (isSafeIntent(pm, prefIntent)) {
getActivity().startActivityAsUser(prefIntent, mUserHandle);
} else {
Log.e(TAG,
"Refusing to launch authenticator intent because"
+ "it exploits Settings permissions: "
+ prefIntent);
}
return true;
}
});
}
}
}
i++;
}
}
/**
* Determines if the supplied Intent is safe. A safe intent is one that is
* will launch a exported=true activity or owned by the same uid as the
* authenticator supplying the intent.
*/
private boolean isSafeIntent(PackageManager pm, Intent intent) {
AuthenticatorDescription authDesc =
mAuthenticatorHelper.getAccountTypeDescription(mAccountType);
ResolveInfo resolveInfo = pm.resolveActivity(intent, 0);
if (resolveInfo == null) {
return false;
}
ActivityInfo resolvedActivityInfo = resolveInfo.activityInfo;
ApplicationInfo resolvedAppInfo = resolvedActivityInfo.applicationInfo;
try {
ApplicationInfo authenticatorAppInf = pm.getApplicationInfo(authDesc.packageName, 0);
return resolvedActivityInfo.exported
|| resolvedAppInfo.uid == authenticatorAppInf.uid;
} catch (NameNotFoundException e) {
Log.e(TAG,
"Intent considered unsafe due to exception.",
e);
return false;
}
}
@Override
protected void onAuthDescriptionsUpdated() {
// Update account icons for all account preference items
for (int i = 0; i < getPreferenceScreen().getPreferenceCount(); i++) {
Preference pref = getPreferenceScreen().getPreference(i);
if (pref instanceof AccountPreference) {
AccountPreference accPref = (AccountPreference) pref;
accPref.setSummary(getLabelForType(accPref.getAccount().type));
}
}
}
}