diff options
Diffstat (limited to 'services/java/com/android/server/print/PrintManagerService.java')
| -rw-r--r-- | services/java/com/android/server/print/PrintManagerService.java | 656 |
1 files changed, 0 insertions, 656 deletions
diff --git a/services/java/com/android/server/print/PrintManagerService.java b/services/java/com/android/server/print/PrintManagerService.java deleted file mode 100644 index 98acc27..0000000 --- a/services/java/com/android/server/print/PrintManagerService.java +++ /dev/null @@ -1,656 +0,0 @@ -/* - * Copyright (C) 2013 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.print; - -import android.Manifest; -import android.app.Notification; -import android.app.NotificationManager; -import android.app.PendingIntent; -import android.content.BroadcastReceiver; -import android.content.ComponentName; -import android.content.Context; -import android.content.Intent; -import android.content.IntentFilter; -import android.content.pm.PackageManager; -import android.content.pm.ResolveInfo; -import android.content.pm.ServiceInfo; -import android.database.ContentObserver; -import android.net.Uri; -import android.os.Binder; -import android.os.Bundle; -import android.os.Process; -import android.os.RemoteException; -import android.os.UserHandle; -import android.print.IPrintDocumentAdapter; -import android.print.IPrintJobStateChangeListener; -import android.print.IPrintManager; -import android.print.IPrinterDiscoveryObserver; -import android.print.PrintAttributes; -import android.print.PrintJobId; -import android.print.PrintJobInfo; -import android.print.PrinterId; -import android.printservice.PrintServiceInfo; -import android.provider.Settings; -import android.text.TextUtils; -import android.util.SparseArray; - -import com.android.internal.R; -import com.android.internal.content.PackageMonitor; -import com.android.internal.os.BackgroundThread; - -import java.io.FileDescriptor; -import java.io.PrintWriter; -import java.util.Iterator; -import java.util.List; -import java.util.Set; - -public final class PrintManagerService extends IPrintManager.Stub { - - private static final char COMPONENT_NAME_SEPARATOR = ':'; - - private static final String EXTRA_PRINT_SERVICE_COMPONENT_NAME = - "EXTRA_PRINT_SERVICE_COMPONENT_NAME"; - - private final Object mLock = new Object(); - - private final Context mContext; - - private final SparseArray<UserState> mUserStates = new SparseArray<UserState>(); - - private int mCurrentUserId = UserHandle.USER_OWNER; - - public PrintManagerService(Context context) { - mContext = context; - registerContentObservers(); - registerBoradcastReceivers(); - } - - public void systemRuning() { - BackgroundThread.getHandler().post(new Runnable() { - @Override - public void run() { - final UserState userState; - synchronized (mLock) { - userState = getCurrentUserStateLocked(); - userState.updateIfNeededLocked(); - } - // This is the first time we switch to this user after boot, so - // now is the time to remove obsolete print jobs since they - // are from the last boot and no application would query them. - userState.removeObsoletePrintJobs(); - } - }); - } - - @Override - public Bundle print(String printJobName, IPrintDocumentAdapter adapter, - PrintAttributes attributes, String packageName, int appId, int userId) { - final int resolvedAppId = resolveCallingAppEnforcingPermissions(appId); - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - String resolvedPackageName = resolveCallingPackageNameEnforcingSecurity(packageName); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - return userState.print(printJobName, adapter, attributes, - resolvedPackageName, resolvedAppId); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public List<PrintJobInfo> getPrintJobInfos(int appId, int userId) { - final int resolvedAppId = resolveCallingAppEnforcingPermissions(appId); - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - return userState.getPrintJobInfos(resolvedAppId); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public PrintJobInfo getPrintJobInfo(PrintJobId printJobId, int appId, int userId) { - final int resolvedAppId = resolveCallingAppEnforcingPermissions(appId); - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - return userState.getPrintJobInfo(printJobId, resolvedAppId); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public void cancelPrintJob(PrintJobId printJobId, int appId, int userId) { - final int resolvedAppId = resolveCallingAppEnforcingPermissions(appId); - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - userState.cancelPrintJob(printJobId, resolvedAppId); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public void restartPrintJob(PrintJobId printJobId, int appId, int userId) { - final int resolvedAppId = resolveCallingAppEnforcingPermissions(appId); - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - userState.restartPrintJob(printJobId, resolvedAppId); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public List<PrintServiceInfo> getEnabledPrintServices(int userId) { - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - return userState.getEnabledPrintServices(); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public List<PrintServiceInfo> getInstalledPrintServices(int userId) { - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - return userState.getInstalledPrintServices(); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public void createPrinterDiscoverySession(IPrinterDiscoveryObserver observer, - int userId) { - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - userState.createPrinterDiscoverySession(observer); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public void destroyPrinterDiscoverySession(IPrinterDiscoveryObserver observer, - int userId) { - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - userState.destroyPrinterDiscoverySession(observer); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public void startPrinterDiscovery(IPrinterDiscoveryObserver observer, - List<PrinterId> priorityList, int userId) { - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - userState.startPrinterDiscovery(observer, priorityList); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public void stopPrinterDiscovery(IPrinterDiscoveryObserver observer, int userId) { - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - userState.stopPrinterDiscovery(observer); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public void validatePrinters(List<PrinterId> printerIds, int userId) { - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - userState.validatePrinters(printerIds); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public void startPrinterStateTracking(PrinterId printerId, int userId) { - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - userState.startPrinterStateTracking(printerId); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public void stopPrinterStateTracking(PrinterId printerId, int userId) { - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - userState.stopPrinterStateTracking(printerId); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public void addPrintJobStateChangeListener(IPrintJobStateChangeListener listener, - int appId, int userId) throws RemoteException { - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final int resolvedAppId = resolveCallingAppEnforcingPermissions(appId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - userState.addPrintJobStateChangeListener(listener, resolvedAppId); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public void removePrintJobStateChangeListener(IPrintJobStateChangeListener listener, - int userId) { - final int resolvedUserId = resolveCallingUserEnforcingPermissions(userId); - final UserState userState; - synchronized (mLock) { - userState = getOrCreateUserStateLocked(resolvedUserId); - } - final long identity = Binder.clearCallingIdentity(); - try { - userState.removePrintJobStateChangeListener(listener); - } finally { - Binder.restoreCallingIdentity(identity); - } - } - - @Override - public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { - if (mContext.checkCallingOrSelfPermission(Manifest.permission.DUMP) - != PackageManager.PERMISSION_GRANTED) { - pw.println("Permission Denial: can't dump PrintManager from from pid=" - + Binder.getCallingPid() - + ", uid=" + Binder.getCallingUid()); - return; - } - - synchronized (mLock) { - final long identity = Binder.clearCallingIdentity(); - try { - pw.println("PRINT MANAGER STATE (dumpsys print)"); - final int userStateCount = mUserStates.size(); - for (int i = 0; i < userStateCount; i++) { - UserState userState = mUserStates.valueAt(i); - userState.dump(fd, pw, ""); - pw.println(); - } - } finally { - Binder.restoreCallingIdentity(identity); - } - } - } - - private void registerContentObservers() { - final Uri enabledPrintServicesUri = Settings.Secure.getUriFor( - Settings.Secure.ENABLED_PRINT_SERVICES); - - ContentObserver observer = new ContentObserver(BackgroundThread.getHandler()) { - @Override - public void onChange(boolean selfChange, Uri uri) { - if (enabledPrintServicesUri.equals(uri)) { - synchronized (mLock) { - UserState userState = getCurrentUserStateLocked(); - userState.updateIfNeededLocked(); - } - } - } - }; - - mContext.getContentResolver().registerContentObserver(enabledPrintServicesUri, - false, observer, UserHandle.USER_ALL); - } - - private void registerBoradcastReceivers() { - PackageMonitor monitor = new PackageMonitor() { - @Override - public boolean onPackageChanged(String packageName, int uid, String[] components) { - synchronized (mLock) { - UserState userState = getOrCreateUserStateLocked(getChangingUserId()); - Iterator<ComponentName> iterator = userState.getEnabledServices().iterator(); - while (iterator.hasNext()) { - ComponentName componentName = iterator.next(); - if (packageName.equals(componentName.getPackageName())) { - userState.updateIfNeededLocked(); - return true; - } - } - } - return false; - } - - @Override - public void onPackageRemoved(String packageName, int uid) { - synchronized (mLock) { - UserState userState = getOrCreateUserStateLocked(getChangingUserId()); - Iterator<ComponentName> iterator = userState.getEnabledServices().iterator(); - while (iterator.hasNext()) { - ComponentName componentName = iterator.next(); - if (packageName.equals(componentName.getPackageName())) { - iterator.remove(); - persistComponentNamesToSettingLocked( - Settings.Secure.ENABLED_PRINT_SERVICES, - userState.getEnabledServices(), getChangingUserId()); - userState.updateIfNeededLocked(); - return; - } - } - } - } - - @Override - public boolean onHandleForceStop(Intent intent, String[] stoppedPackages, - int uid, boolean doit) { - synchronized (mLock) { - UserState userState = getOrCreateUserStateLocked(getChangingUserId()); - boolean stoppedSomePackages = false; - Iterator<ComponentName> iterator = userState.getEnabledServices().iterator(); - while (iterator.hasNext()) { - ComponentName componentName = iterator.next(); - String componentPackage = componentName.getPackageName(); - for (String stoppedPackage : stoppedPackages) { - if (componentPackage.equals(stoppedPackage)) { - if (!doit) { - return true; - } - stoppedSomePackages = true; - break; - } - } - } - if (stoppedSomePackages) { - userState.updateIfNeededLocked(); - } - return false; - } - } - - @Override - public void onPackageAdded(String packageName, int uid) { - Intent intent = new Intent(android.printservice.PrintService.SERVICE_INTERFACE); - intent.setPackage(packageName); - - List<ResolveInfo> installedServices = mContext.getPackageManager() - .queryIntentServicesAsUser(intent, PackageManager.GET_SERVICES, - getChangingUserId()); - - if (installedServices == null) { - return; - } - - final int installedServiceCount = installedServices.size(); - for (int i = 0; i < installedServiceCount; i++) { - ServiceInfo serviceInfo = installedServices.get(i).serviceInfo; - ComponentName component = new ComponentName(serviceInfo.packageName, - serviceInfo.name); - String label = serviceInfo.loadLabel(mContext.getPackageManager()).toString(); - showEnableInstalledPrintServiceNotification(component, label, - getChangingUserId()); - } - } - - private void persistComponentNamesToSettingLocked(String settingName, - Set<ComponentName> componentNames, int userId) { - StringBuilder builder = new StringBuilder(); - for (ComponentName componentName : componentNames) { - if (builder.length() > 0) { - builder.append(COMPONENT_NAME_SEPARATOR); - } - builder.append(componentName.flattenToShortString()); - } - Settings.Secure.putStringForUser(mContext.getContentResolver(), - settingName, builder.toString(), userId); - } - }; - - // package changes - monitor.register(mContext, BackgroundThread.getHandler().getLooper(), - UserHandle.ALL, true); - - // user changes - IntentFilter intentFilter = new IntentFilter(); - intentFilter.addAction(Intent.ACTION_USER_SWITCHED); - intentFilter.addAction(Intent.ACTION_USER_REMOVED); - - mContext.registerReceiverAsUser(new BroadcastReceiver() { - @Override - public void onReceive(Context context, Intent intent) { - String action = intent.getAction(); - if (Intent.ACTION_USER_SWITCHED.equals(action)) { - switchUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); - } else if (Intent.ACTION_USER_REMOVED.equals(action)) { - removeUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); - } - } - }, UserHandle.ALL, intentFilter, null, BackgroundThread.getHandler()); - } - - private UserState getCurrentUserStateLocked() { - return getOrCreateUserStateLocked(mCurrentUserId); - } - - private UserState getOrCreateUserStateLocked(int userId) { - UserState userState = mUserStates.get(userId); - if (userState == null) { - userState = new UserState(mContext, userId, mLock); - mUserStates.put(userId, userState); - } - return userState; - } - - private void switchUser(int newUserId) { - UserState userState; - synchronized (mLock) { - if (newUserId == mCurrentUserId) { - return; - } - mCurrentUserId = newUserId; - userState = mUserStates.get(mCurrentUserId); - if (userState == null) { - userState = getCurrentUserStateLocked(); - userState.updateIfNeededLocked(); - } else { - userState.updateIfNeededLocked(); - } - } - // This is the first time we switch to this user after boot, so - // now is the time to remove obsolete print jobs since they - // are from the last boot and no application would query them. - userState.removeObsoletePrintJobs(); - } - - private void removeUser(int removedUserId) { - synchronized (mLock) { - UserState userState = mUserStates.get(removedUserId); - if (userState != null) { - userState.destroyLocked(); - mUserStates.remove(removedUserId); - } - } - } - - private int resolveCallingAppEnforcingPermissions(int appId) { - final int callingUid = Binder.getCallingUid(); - if (callingUid == 0 || callingUid == Process.SYSTEM_UID - || callingUid == Process.SHELL_UID) { - return appId; - } - final int callingAppId = UserHandle.getAppId(callingUid); - if (appId == callingAppId) { - return appId; - } - if (mContext.checkCallingPermission( - "com.android.printspooler.permission.ACCESS_ALL_PRINT_JOBS") - != PackageManager.PERMISSION_GRANTED) { - throw new SecurityException("Call from app " + callingAppId + " as app " - + appId + " without com.android.printspooler.permission" - + ".ACCESS_ALL_PRINT_JOBS"); - } - return appId; - } - - private int resolveCallingUserEnforcingPermissions(int userId) { - final int callingUid = Binder.getCallingUid(); - if (callingUid == 0 || callingUid == Process.SYSTEM_UID - || callingUid == Process.SHELL_UID) { - return userId; - } - final int callingUserId = UserHandle.getUserId(callingUid); - if (callingUserId == userId) { - return userId; - } - if (mContext.checkCallingPermission(Manifest.permission.INTERACT_ACROSS_USERS_FULL) - != PackageManager.PERMISSION_GRANTED - || mContext.checkCallingPermission(Manifest.permission.INTERACT_ACROSS_USERS) - != PackageManager.PERMISSION_GRANTED) { - if (userId == UserHandle.USER_CURRENT_OR_SELF) { - return callingUserId; - } - throw new SecurityException("Call from user " + callingUserId + " as user " - + userId + " without permission INTERACT_ACROSS_USERS or " - + "INTERACT_ACROSS_USERS_FULL not allowed."); - } - if (userId == UserHandle.USER_CURRENT || userId == UserHandle.USER_CURRENT_OR_SELF) { - return mCurrentUserId; - } - throw new IllegalArgumentException("Calling user can be changed to only " - + "UserHandle.USER_CURRENT or UserHandle.USER_CURRENT_OR_SELF."); - } - - private String resolveCallingPackageNameEnforcingSecurity(String packageName) { - if (TextUtils.isEmpty(packageName)) { - return null; - } - String[] packages = mContext.getPackageManager().getPackagesForUid( - Binder.getCallingUid()); - final int packageCount = packages.length; - for (int i = 0; i < packageCount; i++) { - if (packageName.equals(packages[i])) { - return packageName; - } - } - return null; - } - - private void showEnableInstalledPrintServiceNotification(ComponentName component, - String label, int userId) { - UserHandle userHandle = new UserHandle(userId); - - Intent intent = new Intent(Settings.ACTION_PRINT_SETTINGS); - intent.putExtra(EXTRA_PRINT_SERVICE_COMPONENT_NAME, component.flattenToString()); - - PendingIntent pendingIntent = PendingIntent.getActivityAsUser(mContext, 0, intent, - PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_CANCEL_CURRENT, null, userHandle); - - Notification.Builder builder = new Notification.Builder(mContext) - .setSmallIcon(R.drawable.ic_print) - .setContentTitle(mContext.getString(R.string.print_service_installed_title, label)) - .setContentText(mContext.getString(R.string.print_service_installed_message)) - .setContentIntent(pendingIntent) - .setWhen(System.currentTimeMillis()) - .setAutoCancel(true) - .setShowWhen(true); - - NotificationManager notificationManager = (NotificationManager) mContext - .getSystemService(Context.NOTIFICATION_SERVICE); - - String notificationTag = getClass().getName() + ":" + component.flattenToString(); - notificationManager.notifyAsUser(notificationTag, 0, builder.build(), - userHandle); - } -} |