The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2007 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server; |
| 18 | |
| 19 | import android.app.Notification; |
| 20 | import android.app.NotificationManager; |
| 21 | import android.app.PendingIntent; |
| 22 | import android.content.BroadcastReceiver; |
| 23 | import android.content.Context; |
| 24 | import android.content.Intent; |
| 25 | import android.content.IntentFilter; |
| 26 | import android.content.pm.PackageManager; |
| 27 | import android.content.res.Resources; |
| 28 | import android.net.Uri; |
| 29 | import android.os.IMountService; |
| 30 | import android.os.Environment; |
| 31 | import android.os.RemoteException; |
| 32 | import android.os.SystemProperties; |
| 33 | import android.os.UEventObserver; |
| 34 | import android.text.TextUtils; |
| 35 | import android.util.Log; |
| 36 | |
| 37 | import java.io.File; |
| 38 | import java.io.FileReader; |
| 39 | |
| 40 | /** |
| 41 | * MountService implements an to the mount service daemon |
| 42 | * @hide |
| 43 | */ |
| 44 | class MountService extends IMountService.Stub { |
| 45 | |
| 46 | private static final String TAG = "MountService"; |
| 47 | |
| 48 | /** |
| 49 | * Binder context for this service |
| 50 | */ |
| 51 | private Context mContext; |
| 52 | |
| 53 | /** |
| 54 | * listener object for communicating with the mount service daemon |
| 55 | */ |
| 56 | private MountListener mListener; |
| 57 | |
| 58 | /** |
| 59 | * The notification that is shown when a USB mass storage host |
| 60 | * is connected. |
| 61 | * <p> |
| 62 | * This is lazily created, so use {@link #setUsbStorageNotification()}. |
| 63 | */ |
| 64 | private Notification mUsbStorageNotification; |
| 65 | |
| 66 | |
| 67 | /** |
| 68 | * The notification that is shown when the following media events occur: |
| 69 | * - Media is being checked |
| 70 | * - Media is blank (or unknown filesystem) |
| 71 | * - Media is corrupt |
| 72 | * - Media is safe to unmount |
| 73 | * - Media is missing |
| 74 | * <p> |
| 75 | * This is lazily created, so use {@link #setMediaStorageNotification()}. |
| 76 | */ |
| 77 | private Notification mMediaStorageNotification; |
| 78 | |
| 79 | private boolean mShowSafeUnmountNotificationWhenUnmounted; |
| 80 | |
| 81 | private boolean mPlaySounds; |
| 82 | |
| 83 | private boolean mMounted; |
| 84 | |
| 85 | /** |
| 86 | * Constructs a new MountService instance |
| 87 | * |
| 88 | * @param context Binder context for this service |
| 89 | */ |
| 90 | public MountService(Context context) { |
| 91 | mContext = context; |
| 92 | |
| 93 | // Register a BOOT_COMPLETED handler so that we can start |
| 94 | // MountListener. We defer the startup so that we don't |
| 95 | // start processing events before we ought-to |
| 96 | mContext.registerReceiver(mBroadcastReceiver, |
| 97 | new IntentFilter(Intent.ACTION_BOOT_COMPLETED), null, null); |
| 98 | |
| 99 | mListener = new MountListener(this); |
| 100 | mShowSafeUnmountNotificationWhenUnmounted = false; |
| 101 | |
| 102 | mPlaySounds = SystemProperties.get("persist.service.mount.playsnd", "1").equals("1"); |
| 103 | } |
| 104 | |
| 105 | BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { |
| 106 | public void onReceive(Context context, Intent intent) { |
| 107 | if (intent.getAction().equals(Intent.ACTION_BOOT_COMPLETED)) { |
| 108 | Thread thread = new Thread(mListener, MountListener.class.getName()); |
| 109 | thread.start(); |
| 110 | } |
| 111 | } |
| 112 | }; |
| 113 | |
| 114 | /** |
| 115 | * @return true if USB mass storage support is enabled. |
| 116 | */ |
| 117 | public boolean getMassStorageEnabled() throws RemoteException { |
| 118 | return mListener.getMassStorageEnabled(); |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Enables or disables USB mass storage support. |
| 123 | * |
| 124 | * @param enable true to enable USB mass storage support |
| 125 | */ |
| 126 | public void setMassStorageEnabled(boolean enable) throws RemoteException { |
| 127 | mListener.setMassStorageEnabled(enable); |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * @return true if USB mass storage is connected. |
| 132 | */ |
| 133 | public boolean getMassStorageConnected() throws RemoteException { |
| 134 | return mListener.getMassStorageConnected(); |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * Attempt to mount external media |
| 139 | */ |
| 140 | public void mountMedia(String mountPath) throws RemoteException { |
| 141 | if (mContext.checkCallingOrSelfPermission( |
| 142 | android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS) |
| 143 | != PackageManager.PERMISSION_GRANTED) { |
| 144 | throw new SecurityException("Requires MOUNT_UNMOUNT_FILESYSTEMS permission"); |
| 145 | } |
| 146 | mListener.mountMedia(mountPath); |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * Attempt to unmount external media to prepare for eject |
| 151 | */ |
| 152 | public void unmountMedia(String mountPath) throws RemoteException { |
| 153 | if (mContext.checkCallingOrSelfPermission( |
| 154 | android.Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS) |
| 155 | != PackageManager.PERMISSION_GRANTED) { |
| 156 | throw new SecurityException("Requires MOUNT_UNMOUNT_FILESYSTEMS permission"); |
| 157 | } |
| 158 | |
| 159 | // Set a flag so that when we get the unmounted event, we know |
| 160 | // to display the notification |
| 161 | mShowSafeUnmountNotificationWhenUnmounted = true; |
| 162 | |
| 163 | // tell mountd to unmount the media |
| 164 | mListener.ejectMedia(mountPath); |
| 165 | } |
| 166 | |
| 167 | /** |
| 168 | * Attempt to format external media |
| 169 | */ |
| 170 | public void formatMedia(String formatPath) throws RemoteException { |
| 171 | if (mContext.checkCallingOrSelfPermission( |
| 172 | android.Manifest.permission.MOUNT_FORMAT_FILESYSTEMS) |
| 173 | != PackageManager.PERMISSION_GRANTED) { |
| 174 | throw new SecurityException("Requires MOUNT_FORMAT_FILESYSTEMS permission"); |
| 175 | } |
| 176 | |
| 177 | mListener.formatMedia(formatPath); |
| 178 | } |
| 179 | |
| 180 | /** |
| 181 | * Returns true if we're playing media notification sounds. |
| 182 | */ |
| 183 | public boolean getPlayNotificationSounds() { |
| 184 | return mPlaySounds; |
| 185 | } |
| 186 | |
| 187 | /** |
| 188 | * Set whether or not we're playing media notification sounds. |
| 189 | */ |
| 190 | public void setPlayNotificationSounds(boolean enabled) { |
| 191 | if (mContext.checkCallingOrSelfPermission( |
| 192 | android.Manifest.permission.WRITE_SETTINGS) |
| 193 | != PackageManager.PERMISSION_GRANTED) { |
| 194 | throw new SecurityException("Requires WRITE_SETTINGS permission"); |
| 195 | } |
| 196 | mPlaySounds = enabled; |
| 197 | SystemProperties.set("persist.service.mount.playsnd", (enabled ? "1" : "0")); |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * Update the state of the USB mass storage notification |
| 202 | */ |
| 203 | void updateUsbMassStorageNotification(boolean suppressIfConnected, boolean sound) { |
| 204 | |
| 205 | try { |
| 206 | |
| 207 | if (getMassStorageConnected() && !suppressIfConnected) { |
| 208 | Intent intent = new Intent(); |
| 209 | intent.setClass(mContext, com.android.internal.app.UsbStorageActivity.class); |
| 210 | PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0); |
| 211 | setUsbStorageNotification( |
| 212 | com.android.internal.R.string.usb_storage_notification_title, |
| 213 | com.android.internal.R.string.usb_storage_notification_message, |
| 214 | com.android.internal.R.drawable.stat_sys_data_usb, |
| 215 | sound, true, pi); |
| 216 | } else { |
| 217 | setUsbStorageNotification(0, 0, 0, false, false, null); |
| 218 | } |
| 219 | } catch (RemoteException e) { |
| 220 | // Nothing to do |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | void handlePossibleExplicitUnmountBroadcast(String path) { |
| 225 | if (mMounted) { |
| 226 | mMounted = false; |
| 227 | Intent intent = new Intent(Intent.ACTION_MEDIA_UNMOUNTED, |
| 228 | Uri.parse("file://" + path)); |
| 229 | mContext.sendBroadcast(intent); |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | /** |
| 234 | * Broadcasts the USB mass storage connected event to all clients. |
| 235 | */ |
| 236 | void notifyUmsConnected() { |
| 237 | String storageState = Environment.getExternalStorageState(); |
| 238 | if (!storageState.equals(Environment.MEDIA_REMOVED) && |
| 239 | !storageState.equals(Environment.MEDIA_BAD_REMOVAL) && |
| 240 | !storageState.equals(Environment.MEDIA_CHECKING)) { |
| 241 | |
| 242 | updateUsbMassStorageNotification(false, true); |
| 243 | } |
| 244 | |
| 245 | Intent intent = new Intent(Intent.ACTION_UMS_CONNECTED); |
| 246 | mContext.sendBroadcast(intent); |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Broadcasts the USB mass storage disconnected event to all clients. |
| 251 | */ |
| 252 | void notifyUmsDisconnected() { |
| 253 | updateUsbMassStorageNotification(false, false); |
| 254 | Intent intent = new Intent(Intent.ACTION_UMS_DISCONNECTED); |
| 255 | mContext.sendBroadcast(intent); |
| 256 | } |
| 257 | |
| 258 | /** |
| 259 | * Broadcasts the media removed event to all clients. |
| 260 | */ |
| 261 | void notifyMediaRemoved(String path) { |
| 262 | updateUsbMassStorageNotification(true, false); |
| 263 | |
| 264 | setMediaStorageNotification( |
| 265 | com.android.internal.R.string.ext_media_nomedia_notification_title, |
| 266 | com.android.internal.R.string.ext_media_nomedia_notification_message, |
| 267 | com.android.internal.R.drawable.stat_sys_no_sim, |
| 268 | true, false, null); |
| 269 | handlePossibleExplicitUnmountBroadcast(path); |
| 270 | |
| 271 | Intent intent = new Intent(Intent.ACTION_MEDIA_REMOVED, |
| 272 | Uri.parse("file://" + path)); |
| 273 | mContext.sendBroadcast(intent); |
| 274 | } |
| 275 | |
| 276 | /** |
| 277 | * Broadcasts the media unmounted event to all clients. |
| 278 | */ |
| 279 | void notifyMediaUnmounted(String path) { |
| 280 | if (mShowSafeUnmountNotificationWhenUnmounted) { |
| 281 | setMediaStorageNotification( |
| 282 | com.android.internal.R.string.ext_media_safe_unmount_notification_title, |
| 283 | com.android.internal.R.string.ext_media_safe_unmount_notification_message, |
| 284 | com.android.internal.R.drawable.stat_notify_sim_toolkit, |
| 285 | true, true, null); |
| 286 | mShowSafeUnmountNotificationWhenUnmounted = false; |
| 287 | } else { |
| 288 | setMediaStorageNotification(0, 0, 0, false, false, null); |
| 289 | } |
| 290 | updateUsbMassStorageNotification(false, false); |
| 291 | |
| 292 | Intent intent = new Intent(Intent.ACTION_MEDIA_UNMOUNTED, |
| 293 | Uri.parse("file://" + path)); |
| 294 | mContext.sendBroadcast(intent); |
| 295 | } |
| 296 | |
| 297 | /** |
| 298 | * Broadcasts the media checking event to all clients. |
| 299 | */ |
| 300 | void notifyMediaChecking(String path) { |
| 301 | setMediaStorageNotification( |
| 302 | com.android.internal.R.string.ext_media_checking_notification_title, |
| 303 | com.android.internal.R.string.ext_media_checking_notification_message, |
| 304 | com.android.internal.R.drawable.stat_notify_sim_toolkit, |
| 305 | true, false, null); |
| 306 | |
| 307 | updateUsbMassStorageNotification(true, false); |
| 308 | Intent intent = new Intent(Intent.ACTION_MEDIA_CHECKING, |
| 309 | Uri.parse("file://" + path)); |
| 310 | mContext.sendBroadcast(intent); |
| 311 | } |
| 312 | |
| 313 | /** |
| 314 | * Broadcasts the media nofs event to all clients. |
| 315 | */ |
| 316 | void notifyMediaNoFs(String path) { |
| 317 | |
| 318 | Intent intent = new Intent(); |
| 319 | intent.setClass(mContext, com.android.internal.app.ExternalMediaFormatActivity.class); |
| 320 | PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0); |
| 321 | |
| 322 | setMediaStorageNotification(com.android.internal.R.string.ext_media_nofs_notification_title, |
| 323 | com.android.internal.R.string.ext_media_nofs_notification_message, |
| 324 | com.android.internal.R.drawable.stat_sys_no_sim, |
| 325 | true, false, pi); |
| 326 | updateUsbMassStorageNotification(false, false); |
| 327 | intent = new Intent(Intent.ACTION_MEDIA_NOFS, |
| 328 | Uri.parse("file://" + path)); |
| 329 | mContext.sendBroadcast(intent); |
| 330 | } |
| 331 | |
| 332 | /** |
| 333 | * Broadcasts the media mounted event to all clients. |
| 334 | */ |
| 335 | void notifyMediaMounted(String path, boolean readOnly) { |
| 336 | setMediaStorageNotification(0, 0, 0, false, false, null); |
| 337 | updateUsbMassStorageNotification(false, false); |
| 338 | Intent intent = new Intent(Intent.ACTION_MEDIA_MOUNTED, |
| 339 | Uri.parse("file://" + path)); |
| 340 | intent.putExtra("read-only", readOnly); |
| 341 | mMounted = true; |
| 342 | mContext.sendBroadcast(intent); |
| 343 | } |
| 344 | |
| 345 | /** |
| 346 | * Broadcasts the media shared event to all clients. |
| 347 | */ |
| 348 | void notifyMediaShared(String path) { |
| 349 | Intent intent = new Intent(); |
| 350 | intent.setClass(mContext, com.android.internal.app.UsbStorageStopActivity.class); |
| 351 | PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0); |
| 352 | setUsbStorageNotification(com.android.internal.R.string.usb_storage_stop_notification_title, |
| 353 | com.android.internal.R.string.usb_storage_stop_notification_message, |
| 354 | com.android.internal.R.drawable.stat_sys_warning, |
| 355 | false, true, pi); |
| 356 | handlePossibleExplicitUnmountBroadcast(path); |
| 357 | intent = new Intent(Intent.ACTION_MEDIA_SHARED, |
| 358 | Uri.parse("file://" + path)); |
| 359 | mContext.sendBroadcast(intent); |
| 360 | } |
| 361 | |
| 362 | /** |
| 363 | * Broadcasts the media bad removal event to all clients. |
| 364 | */ |
| 365 | void notifyMediaBadRemoval(String path) { |
| 366 | updateUsbMassStorageNotification(true, false); |
| 367 | setMediaStorageNotification(com.android.internal.R.string.ext_media_badremoval_notification_title, |
| 368 | com.android.internal.R.string.ext_media_badremoval_notification_message, |
| 369 | com.android.internal.R.drawable.stat_sys_warning, |
| 370 | true, true, null); |
| 371 | |
| 372 | handlePossibleExplicitUnmountBroadcast(path); |
| 373 | Intent intent = new Intent(Intent.ACTION_MEDIA_BAD_REMOVAL, |
| 374 | Uri.parse("file://" + path)); |
| 375 | mContext.sendBroadcast(intent); |
| 376 | |
| 377 | intent = new Intent(Intent.ACTION_MEDIA_REMOVED, |
| 378 | Uri.parse("file://" + path)); |
| 379 | mContext.sendBroadcast(intent); |
| 380 | } |
| 381 | |
| 382 | /** |
| 383 | * Broadcasts the media unmountable event to all clients. |
| 384 | */ |
| 385 | void notifyMediaUnmountable(String path) { |
| 386 | Intent intent = new Intent(); |
| 387 | intent.setClass(mContext, com.android.internal.app.ExternalMediaFormatActivity.class); |
| 388 | PendingIntent pi = PendingIntent.getActivity(mContext, 0, intent, 0); |
| 389 | |
| 390 | setMediaStorageNotification(com.android.internal.R.string.ext_media_unmountable_notification_title, |
| 391 | com.android.internal.R.string.ext_media_unmountable_notification_message, |
| 392 | com.android.internal.R.drawable.stat_sys_no_sim, |
| 393 | true, false, pi); |
| 394 | updateUsbMassStorageNotification(false, false); |
| 395 | |
| 396 | handlePossibleExplicitUnmountBroadcast(path); |
| 397 | |
| 398 | intent = new Intent(Intent.ACTION_MEDIA_UNMOUNTABLE, |
| 399 | Uri.parse("file://" + path)); |
| 400 | mContext.sendBroadcast(intent); |
| 401 | } |
| 402 | |
| 403 | /** |
| 404 | * Broadcasts the media eject event to all clients. |
| 405 | */ |
| 406 | void notifyMediaEject(String path) { |
| 407 | Intent intent = new Intent(Intent.ACTION_MEDIA_EJECT, |
| 408 | Uri.parse("file://" + path)); |
| 409 | mContext.sendBroadcast(intent); |
| 410 | } |
| 411 | |
| 412 | /** |
| 413 | * Sets the USB storage notification. |
| 414 | */ |
| 415 | private synchronized void setUsbStorageNotification(int titleId, int messageId, int icon, boolean sound, boolean visible, |
| 416 | PendingIntent pi) { |
| 417 | |
| 418 | if (!visible && mUsbStorageNotification == null) { |
| 419 | return; |
| 420 | } |
| 421 | |
| 422 | NotificationManager notificationManager = (NotificationManager) mContext |
| 423 | .getSystemService(Context.NOTIFICATION_SERVICE); |
| 424 | |
| 425 | if (notificationManager == null) { |
| 426 | return; |
| 427 | } |
| 428 | |
| 429 | if (visible) { |
| 430 | Resources r = Resources.getSystem(); |
| 431 | CharSequence title = r.getText(titleId); |
| 432 | CharSequence message = r.getText(messageId); |
| 433 | |
| 434 | if (mUsbStorageNotification == null) { |
| 435 | mUsbStorageNotification = new Notification(); |
| 436 | mUsbStorageNotification.icon = icon; |
| 437 | mUsbStorageNotification.when = 0; |
| 438 | } |
| 439 | |
| 440 | if (sound && mPlaySounds) { |
| 441 | mUsbStorageNotification.defaults |= Notification.DEFAULT_SOUND; |
| 442 | } else { |
| 443 | mUsbStorageNotification.defaults &= ~Notification.DEFAULT_SOUND; |
| 444 | } |
| 445 | |
| 446 | mUsbStorageNotification.flags = Notification.FLAG_ONGOING_EVENT; |
| 447 | |
| 448 | mUsbStorageNotification.tickerText = title; |
| 449 | if (pi == null) { |
| 450 | Intent intent = new Intent(); |
| 451 | pi = PendingIntent.getBroadcast(mContext, 0, intent, 0); |
| 452 | } |
| 453 | |
| 454 | mUsbStorageNotification.setLatestEventInfo(mContext, title, message, pi); |
| 455 | } |
| 456 | |
| 457 | final int notificationId = mUsbStorageNotification.icon; |
| 458 | if (visible) { |
| 459 | notificationManager.notify(notificationId, mUsbStorageNotification); |
| 460 | } else { |
| 461 | notificationManager.cancel(notificationId); |
| 462 | } |
| 463 | } |
| 464 | |
| 465 | private synchronized boolean getMediaStorageNotificationDismissable() { |
| 466 | if ((mMediaStorageNotification != null) && |
| 467 | ((mMediaStorageNotification.flags & Notification.FLAG_AUTO_CANCEL) == |
| 468 | Notification.FLAG_AUTO_CANCEL)) |
| 469 | return true; |
| 470 | |
| 471 | return false; |
| 472 | } |
| 473 | |
| 474 | /** |
| 475 | * Sets the media storage notification. |
| 476 | */ |
| 477 | private synchronized void setMediaStorageNotification(int titleId, int messageId, int icon, boolean visible, |
| 478 | boolean dismissable, PendingIntent pi) { |
| 479 | |
| 480 | if (!visible && mMediaStorageNotification == null) { |
| 481 | return; |
| 482 | } |
| 483 | |
| 484 | NotificationManager notificationManager = (NotificationManager) mContext |
| 485 | .getSystemService(Context.NOTIFICATION_SERVICE); |
| 486 | |
| 487 | if (notificationManager == null) { |
| 488 | return; |
| 489 | } |
| 490 | |
| 491 | if (mMediaStorageNotification != null && visible) { |
| 492 | /* |
| 493 | * Dismiss the previous notification - we're about to |
| 494 | * re-use it. |
| 495 | */ |
| 496 | final int notificationId = mMediaStorageNotification.icon; |
| 497 | notificationManager.cancel(notificationId); |
| 498 | } |
| 499 | |
| 500 | if (visible) { |
| 501 | Resources r = Resources.getSystem(); |
| 502 | CharSequence title = r.getText(titleId); |
| 503 | CharSequence message = r.getText(messageId); |
| 504 | |
| 505 | if (mMediaStorageNotification == null) { |
| 506 | mMediaStorageNotification = new Notification(); |
| 507 | mMediaStorageNotification.when = 0; |
| 508 | } |
| 509 | |
| 510 | if (mPlaySounds) { |
| 511 | mMediaStorageNotification.defaults |= Notification.DEFAULT_SOUND; |
| 512 | } else { |
| 513 | mMediaStorageNotification.defaults &= ~Notification.DEFAULT_SOUND; |
| 514 | } |
| 515 | |
| 516 | if (dismissable) { |
| 517 | mMediaStorageNotification.flags = Notification.FLAG_AUTO_CANCEL; |
| 518 | } else { |
| 519 | mMediaStorageNotification.flags = Notification.FLAG_ONGOING_EVENT; |
| 520 | } |
| 521 | |
| 522 | mMediaStorageNotification.tickerText = title; |
| 523 | if (pi == null) { |
| 524 | Intent intent = new Intent(); |
| 525 | pi = PendingIntent.getBroadcast(mContext, 0, intent, 0); |
| 526 | } |
| 527 | |
| 528 | mMediaStorageNotification.icon = icon; |
| 529 | mMediaStorageNotification.setLatestEventInfo(mContext, title, message, pi); |
| 530 | } |
| 531 | |
| 532 | final int notificationId = mMediaStorageNotification.icon; |
| 533 | if (visible) { |
| 534 | notificationManager.notify(notificationId, mMediaStorageNotification); |
| 535 | } else { |
| 536 | notificationManager.cancel(notificationId); |
| 537 | } |
| 538 | } |
| 539 | } |
| 540 | |