541 lines
19 KiB
Java
541 lines
19 KiB
Java
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server;
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import android.app.Notification;
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import android.app.NotificationManager;
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import android.app.PendingIntent;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.pm.PackageManager;
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import android.content.res.Resources;
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import android.net.Uri;
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import android.os.IMountService;
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import android.os.Environment;
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import android.os.RemoteException;
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import android.os.SystemProperties;
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import android.os.UEventObserver;
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import android.text.TextUtils;
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import android.util.Log;
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import java.io.File;
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import java.io.FileReader;
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/**
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* MountService implements an to the mount service daemon
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* @hide
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*/
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class MountService extends IMountService.Stub {
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private static final String TAG = "MountService";
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/**
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* Binder context for this service
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*/
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private Context mContext;
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/**
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* listener object for communicating with the mount service daemon
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*/
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private MountListener mListener;
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/**
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* The notification that is shown when a USB mass storage host
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* is connected.
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* <p>
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* This is lazily created, so use {@link #setUsbStorageNotification()}.
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*/
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private Notification mUsbStorageNotification;
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/**
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* The notification that is shown when the following media events occur:
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* - Media is being checked
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* - Media is blank (or unknown filesystem)
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* - Media is corrupt
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* - Media is safe to unmount
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* - Media is missing
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* <p>
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* This is lazily created, so use {@link #setMediaStorageNotification()}.
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*/
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private Notification mMediaStorageNotification;
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private boolean mShowSafeUnmountNotificationWhenUnmounted;
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private boolean mPlaySounds;
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private boolean mMounted;
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/**
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* Constructs a new MountService instance
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*
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* @param context Binder context for this service
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*/
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public MountService(Context context) {
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mContext = context;
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// Register a BOOT_COMPLETED handler so that we can start
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// MountListener. We defer the startup so that we don't
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// start processing events before we ought-to
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mContext.registerReceiver(mBroadcastReceiver,
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new IntentFilter(Intent.ACTION_BOOT_COMPLETED), null, null);
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mListener = new MountListener(this);
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mShowSafeUnmountNotificationWhenUnmounted = false;
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mPlaySounds = SystemProperties.get("persist.service.mount.playsnd", "1").equals("1");
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}
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BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
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public void onReceive(Context context, Intent intent) {
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if (intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)) {
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Thread thread = new Thread(mListener, MountListener.class.getName());
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thread.start();
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}
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}
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};
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/**
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* @return true if USB mass storage support is enabled.
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*/
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public boolean getMassStorageEnabled() throws RemoteException {
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return mListener.getMassStorageEnabled();
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}
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/**
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* Enables or disables USB mass storage support.
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*
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* @param enable true to enable USB mass storage support
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*/
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public void setMassStorageEnabled(boolean enable) throws RemoteException {
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mListener.setMassStorageEnabled(enable);
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}
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/**
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* @return true if USB mass storage is connected.
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*/
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public boolean getMassStorageConnected() throws RemoteException {
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return mListener.getMassStorageConnected();
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}
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/**
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* Attempt to mount external media
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*/
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public void mountMedia(String mountPath) throws RemoteException {
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if (mContext.checkCallingOrSelfPermission(
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android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS)
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!= PackageManager.PERMISSION_GRANTED) {
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throw new SecurityException("Requires MOUNT_UNMOUNT_FILESYSTEMS permission");
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}
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mListener.mountMedia(mountPath);
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}
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/**
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* Attempt to unmount external media to prepare for eject
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*/
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public void unmountMedia(String mountPath) throws RemoteException {
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if (mContext.checkCallingOrSelfPermission(
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android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS)
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!= PackageManager.PERMISSION_GRANTED) {
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throw new SecurityException("Requires MOUNT_UNMOUNT_FILESYSTEMS permission");
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}
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// Set a flag so that when we get the unmounted event, we know
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// to display the notification
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mShowSafeUnmountNotificationWhenUnmounted = true;
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// tell mountd to unmount the media
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mListener.ejectMedia(mountPath);
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}
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/**
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* Attempt to format external media
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*/
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public void formatMedia(String formatPath) throws RemoteException {
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if (mContext.checkCallingOrSelfPermission(
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android.Manifest.permission.MOUNT_FORMAT_FILESYSTEMS)
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!= PackageManager.PERMISSION_GRANTED) {
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throw new SecurityException("Requires MOUNT_FORMAT_FILESYSTEMS permission");
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}
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mListener.formatMedia(formatPath);
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}
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/**
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* Returns true if we're playing media notification sounds.
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*/
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public boolean getPlayNotificationSounds() {
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return mPlaySounds;
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}
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/**
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* Set whether or not we're playing media notification sounds.
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*/
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public void setPlayNotificationSounds(boolean enabled) {
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if (mContext.checkCallingOrSelfPermission(
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android.Manifest.permission.WRITE_SETTINGS)
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!= PackageManager.PERMISSION_GRANTED) {
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throw new SecurityException("Requires WRITE_SETTINGS permission");
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}
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mPlaySounds = enabled;
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SystemProperties.set("persist.service.mount.playsnd", (enabled ? "1" : "0"));
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}
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/**
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* Update the state of the USB mass storage notification
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*/
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void updateUsbMassStorageNotification(boolean suppressIfConnected, boolean sound) {
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try {
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if (getMassStorageConnected() && !suppressIfConnected) {
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Intent intent = new Intent();
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intent.setClass(mContext, com.android.internal.app.UsbStorageActivity.class);
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PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0);
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setUsbStorageNotification(
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com.android.internal.R.string.usb_storage_notification_title,
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com.android.internal.R.string.usb_storage_notification_message,
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com.android.internal.R.drawable.stat_sys_data_usb,
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sound, true, pi);
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} else {
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setUsbStorageNotification(0, 0, 0, false, false, null);
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}
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} catch (RemoteException e) {
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// Nothing to do
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}
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}
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void handlePossibleExplicitUnmountBroadcast(String path) {
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if (mMounted) {
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mMounted = false;
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Intent intent = new Intent(Intent.ACTION_MEDIA_UNMOUNTED,
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Uri.parse("file://" + path));
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mContext.sendBroadcast(intent);
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}
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}
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/**
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* Broadcasts the USB mass storage connected event to all clients.
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*/
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void notifyUmsConnected() {
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String storageState = Environment.getExternalStorageState();
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if (!storageState.equals(Environment.MEDIA_REMOVED) &&
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!storageState.equals(Environment.MEDIA_BAD_REMOVAL) &&
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!storageState.equals(Environment.MEDIA_CHECKING)) {
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updateUsbMassStorageNotification(false, true);
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}
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Intent intent = new Intent(Intent.ACTION_UMS_CONNECTED);
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mContext.sendBroadcast(intent);
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}
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/**
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* Broadcasts the USB mass storage disconnected event to all clients.
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*/
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void notifyUmsDisconnected() {
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updateUsbMassStorageNotification(false, false);
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Intent intent = new Intent(Intent.ACTION_UMS_DISCONNECTED);
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mContext.sendBroadcast(intent);
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}
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/**
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* Broadcasts the media removed event to all clients.
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*/
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void notifyMediaRemoved(String path) {
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updateUsbMassStorageNotification(true, false);
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setMediaStorageNotification(
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com.android.internal.R.string.ext_media_nomedia_notification_title,
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com.android.internal.R.string.ext_media_nomedia_notification_message,
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com.android.internal.R.drawable.stat_sys_no_sim,
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true, false, null);
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handlePossibleExplicitUnmountBroadcast(path);
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Intent intent = new Intent(Intent.ACTION_MEDIA_REMOVED,
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Uri.parse("file://" + path));
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mContext.sendBroadcast(intent);
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}
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/**
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* Broadcasts the media unmounted event to all clients.
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*/
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void notifyMediaUnmounted(String path) {
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if (mShowSafeUnmountNotificationWhenUnmounted) {
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setMediaStorageNotification(
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com.android.internal.R.string.ext_media_safe_unmount_notification_title,
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com.android.internal.R.string.ext_media_safe_unmount_notification_message,
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com.android.internal.R.drawable.stat_notify_sim_toolkit,
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true, true, null);
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mShowSafeUnmountNotificationWhenUnmounted = false;
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} else {
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setMediaStorageNotification(0, 0, 0, false, false, null);
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}
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updateUsbMassStorageNotification(false, false);
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Intent intent = new Intent(Intent.ACTION_MEDIA_UNMOUNTED,
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Uri.parse("file://" + path));
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mContext.sendBroadcast(intent);
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}
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/**
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* Broadcasts the media checking event to all clients.
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*/
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void notifyMediaChecking(String path) {
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setMediaStorageNotification(
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com.android.internal.R.string.ext_media_checking_notification_title,
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com.android.internal.R.string.ext_media_checking_notification_message,
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com.android.internal.R.drawable.stat_notify_sim_toolkit,
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true, false, null);
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updateUsbMassStorageNotification(true, false);
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Intent intent = new Intent(Intent.ACTION_MEDIA_CHECKING,
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Uri.parse("file://" + path));
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mContext.sendBroadcast(intent);
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}
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/**
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* Broadcasts the media nofs event to all clients.
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*/
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void notifyMediaNoFs(String path) {
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Intent intent = new Intent();
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intent.setClass(mContext, com.android.internal.app.ExternalMediaFormatActivity.class);
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PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0);
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setMediaStorageNotification(com.android.internal.R.string.ext_media_nofs_notification_title,
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com.android.internal.R.string.ext_media_nofs_notification_message,
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com.android.internal.R.drawable.stat_sys_no_sim,
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true, false, pi);
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updateUsbMassStorageNotification(false, false);
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intent = new Intent(Intent.ACTION_MEDIA_NOFS,
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Uri.parse("file://" + path));
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mContext.sendBroadcast(intent);
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}
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/**
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* Broadcasts the media mounted event to all clients.
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*/
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void notifyMediaMounted(String path, boolean readOnly) {
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setMediaStorageNotification(0, 0, 0, false, false, null);
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updateUsbMassStorageNotification(false, false);
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Intent intent = new Intent(Intent.ACTION_MEDIA_MOUNTED,
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Uri.parse("file://" + path));
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intent.putExtra("read-only", readOnly);
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mMounted = true;
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mContext.sendBroadcast(intent);
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}
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/**
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* Broadcasts the media shared event to all clients.
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*/
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void notifyMediaShared(String path) {
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Intent intent = new Intent();
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intent.setClass(mContext, com.android.internal.app.UsbStorageStopActivity.class);
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PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0);
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setUsbStorageNotification(com.android.internal.R.string.usb_storage_stop_notification_title,
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com.android.internal.R.string.usb_storage_stop_notification_message,
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com.android.internal.R.drawable.stat_sys_warning,
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false, true, pi);
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handlePossibleExplicitUnmountBroadcast(path);
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intent = new Intent(Intent.ACTION_MEDIA_SHARED,
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Uri.parse("file://" + path));
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mContext.sendBroadcast(intent);
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}
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/**
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* Broadcasts the media bad removal event to all clients.
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*/
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void notifyMediaBadRemoval(String path) {
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updateUsbMassStorageNotification(true, false);
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setMediaStorageNotification(com.android.internal.R.string.ext_media_badremoval_notification_title,
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com.android.internal.R.string.ext_media_badremoval_notification_message,
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com.android.internal.R.drawable.stat_sys_warning,
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true, true, null);
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handlePossibleExplicitUnmountBroadcast(path);
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Intent intent = new Intent(Intent.ACTION_MEDIA_BAD_REMOVAL,
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Uri.parse("file://" + path));
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mContext.sendBroadcast(intent);
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intent = new Intent(Intent.ACTION_MEDIA_REMOVED,
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Uri.parse("file://" + path));
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mContext.sendBroadcast(intent);
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}
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/**
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* Broadcasts the media unmountable event to all clients.
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*/
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void notifyMediaUnmountable(String path) {
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Intent intent = new Intent();
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intent.setClass(mContext, com.android.internal.app.ExternalMediaFormatActivity.class);
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PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0);
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setMediaStorageNotification(com.android.internal.R.string.ext_media_unmountable_notification_title,
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com.android.internal.R.string.ext_media_unmountable_notification_message,
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com.android.internal.R.drawable.stat_sys_no_sim,
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true, false, pi);
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updateUsbMassStorageNotification(false, false);
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handlePossibleExplicitUnmountBroadcast(path);
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intent = new Intent(Intent.ACTION_MEDIA_UNMOUNTABLE,
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Uri.parse("file://" + path));
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mContext.sendBroadcast(intent);
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}
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/**
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* Broadcasts the media eject event to all clients.
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*/
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void notifyMediaEject(String path) {
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Intent intent = new Intent(Intent.ACTION_MEDIA_EJECT,
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Uri.parse("file://" + path));
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mContext.sendBroadcast(intent);
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}
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/**
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* Sets the USB storage notification.
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*/
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private synchronized void setUsbStorageNotification(int titleId, int messageId, int icon, boolean sound, boolean visible,
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PendingIntent pi) {
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if (!visible && mUsbStorageNotification == null) {
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return;
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}
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NotificationManager notificationManager = (NotificationManager) mContext
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.getSystemService(Context.NOTIFICATION_SERVICE);
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if (notificationManager == null) {
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return;
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}
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if (visible) {
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Resources r = Resources.getSystem();
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CharSequence title = r.getText(titleId);
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CharSequence message = r.getText(messageId);
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if (mUsbStorageNotification == null) {
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mUsbStorageNotification = new Notification();
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mUsbStorageNotification.icon = icon;
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mUsbStorageNotification.when = 0;
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}
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if (sound && mPlaySounds) {
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mUsbStorageNotification.defaults |= Notification.DEFAULT_SOUND;
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} else {
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mUsbStorageNotification.defaults &= ~Notification.DEFAULT_SOUND;
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}
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mUsbStorageNotification.flags = Notification.FLAG_ONGOING_EVENT;
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mUsbStorageNotification.tickerText = title;
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if (pi == null) {
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Intent intent = new Intent();
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pi = PendingIntent.getBroadcast(mContext, 0, intent, 0);
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}
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mUsbStorageNotification.setLatestEventInfo(mContext, title, message, pi);
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}
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final int notificationId = mUsbStorageNotification.icon;
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if (visible) {
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notificationManager.notify(notificationId, mUsbStorageNotification);
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} else {
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notificationManager.cancel(notificationId);
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}
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}
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private synchronized boolean getMediaStorageNotificationDismissable() {
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if ((mMediaStorageNotification != null) &&
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((mMediaStorageNotification.flags & Notification.FLAG_AUTO_CANCEL) ==
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Notification.FLAG_AUTO_CANCEL))
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return true;
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return false;
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}
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/**
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* Sets the media storage notification.
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*/
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private synchronized void setMediaStorageNotification(int titleId, int messageId, int icon, boolean visible,
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boolean dismissable, PendingIntent pi) {
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if (!visible && mMediaStorageNotification == null) {
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return;
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}
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NotificationManager notificationManager = (NotificationManager) mContext
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.getSystemService(Context.NOTIFICATION_SERVICE);
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if (notificationManager == null) {
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return;
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}
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if (mMediaStorageNotification != null && visible) {
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/*
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* Dismiss the previous notification - we're about to
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* re-use it.
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*/
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final int notificationId = mMediaStorageNotification.icon;
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notificationManager.cancel(notificationId);
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}
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if (visible) {
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Resources r = Resources.getSystem();
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CharSequence title = r.getText(titleId);
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CharSequence message = r.getText(messageId);
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if (mMediaStorageNotification == null) {
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mMediaStorageNotification = new Notification();
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mMediaStorageNotification.when = 0;
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}
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if (mPlaySounds) {
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mMediaStorageNotification.defaults |= Notification.DEFAULT_SOUND;
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} else {
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mMediaStorageNotification.defaults &= ~Notification.DEFAULT_SOUND;
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}
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if (dismissable) {
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mMediaStorageNotification.flags = Notification.FLAG_AUTO_CANCEL;
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} else {
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mMediaStorageNotification.flags = Notification.FLAG_ONGOING_EVENT;
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}
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mMediaStorageNotification.tickerText = title;
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if (pi == null) {
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Intent intent = new Intent();
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pi = PendingIntent.getBroadcast(mContext, 0, intent, 0);
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}
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mMediaStorageNotification.icon = icon;
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mMediaStorageNotification.setLatestEventInfo(mContext, title, message, pi);
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}
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final int notificationId = mMediaStorageNotification.icon;
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if (visible) {
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notificationManager.notify(notificationId, mMediaStorageNotification);
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} else {
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notificationManager.cancel(notificationId);
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}
|
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}
|
|
}
|
|
|