| /* |
| * Copyright (C) 2016 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.usb; |
| |
| import static com.android.internal.app.IntentForwarderActivity.FORWARD_INTENT_TO_MANAGED_PROFILE; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.content.ActivityNotFoundException; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.pm.ResolveInfo; |
| import android.content.pm.UserInfo; |
| import android.content.res.XmlResourceParser; |
| import android.hardware.usb.UsbAccessory; |
| import android.hardware.usb.UsbDevice; |
| import android.hardware.usb.UsbInterface; |
| import android.hardware.usb.UsbManager; |
| import android.os.AsyncTask; |
| import android.os.Environment; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.util.AtomicFile; |
| import android.util.Log; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.SparseIntArray; |
| import android.util.Xml; |
| |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.annotations.Immutable; |
| import com.android.internal.content.PackageMonitor; |
| import com.android.internal.util.FastXmlSerializer; |
| import com.android.internal.util.IndentingPrintWriter; |
| import com.android.internal.util.XmlUtils; |
| |
| import libcore.io.IoUtils; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| |
| class UsbProfileGroupSettingsManager { |
| private static final String TAG = UsbProfileGroupSettingsManager.class.getSimpleName(); |
| private static final boolean DEBUG = false; |
| |
| /** Legacy settings file, before multi-user */ |
| private static final File sSingleUserSettingsFile = new File( |
| "/data/system/usb_device_manager.xml"); |
| |
| /** The parent user (main user of the profile group) */ |
| private final UserHandle mParentUser; |
| |
| private final AtomicFile mSettingsFile; |
| private final boolean mDisablePermissionDialogs; |
| |
| private final Context mContext; |
| |
| private final PackageManager mPackageManager; |
| |
| private final UserManager mUserManager; |
| private final @NonNull UsbSettingsManager mSettingsManager; |
| |
| /** Maps DeviceFilter to user preferred application package */ |
| @GuardedBy("mLock") |
| private final HashMap<DeviceFilter, UserPackage> mDevicePreferenceMap = new HashMap<>(); |
| |
| /** Maps AccessoryFilter to user preferred application package */ |
| @GuardedBy("mLock") |
| private final HashMap<AccessoryFilter, UserPackage> mAccessoryPreferenceMap = new HashMap<>(); |
| |
| private final Object mLock = new Object(); |
| |
| /** |
| * If a async task to persist the mDevicePreferenceMap and mAccessoryPreferenceMap is currently |
| * scheduled. |
| */ |
| @GuardedBy("mLock") |
| private boolean mIsWriteSettingsScheduled; |
| |
| /** |
| * A package of a user. |
| */ |
| @Immutable |
| private static class UserPackage { |
| /** User */ |
| final @NonNull UserHandle user; |
| |
| /** Package name */ |
| final @NonNull String packageName; |
| |
| /** |
| * Create a description of a per user package. |
| * |
| * @param packageName The name of the package |
| * @param user The user |
| */ |
| private UserPackage(@NonNull String packageName, @NonNull UserHandle user) { |
| this.packageName = packageName; |
| this.user = user; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (!(obj instanceof UserPackage)) { |
| return false; |
| } else { |
| UserPackage other = (UserPackage)obj; |
| |
| return user.equals(other.user) && packageName.equals(other.packageName); |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = user.hashCode(); |
| result = 31 * result + packageName.hashCode(); |
| return result; |
| } |
| |
| @Override |
| public String toString() { |
| return user.getIdentifier() + "/" + packageName; |
| } |
| } |
| |
| // This class is used to describe a USB device. |
| // When used in HashMaps all values must be specified, |
| // but wildcards can be used for any of the fields in |
| // the package meta-data. |
| private static class DeviceFilter { |
| // USB Vendor ID (or -1 for unspecified) |
| public final int mVendorId; |
| // USB Product ID (or -1 for unspecified) |
| public final int mProductId; |
| // USB device or interface class (or -1 for unspecified) |
| public final int mClass; |
| // USB device subclass (or -1 for unspecified) |
| public final int mSubclass; |
| // USB device protocol (or -1 for unspecified) |
| public final int mProtocol; |
| // USB device manufacturer name string (or null for unspecified) |
| public final String mManufacturerName; |
| // USB device product name string (or null for unspecified) |
| public final String mProductName; |
| // USB device serial number string (or null for unspecified) |
| public final String mSerialNumber; |
| |
| public DeviceFilter(int vid, int pid, int clasz, int subclass, int protocol, |
| String manufacturer, String product, String serialnum) { |
| mVendorId = vid; |
| mProductId = pid; |
| mClass = clasz; |
| mSubclass = subclass; |
| mProtocol = protocol; |
| mManufacturerName = manufacturer; |
| mProductName = product; |
| mSerialNumber = serialnum; |
| } |
| |
| public DeviceFilter(UsbDevice device) { |
| mVendorId = device.getVendorId(); |
| mProductId = device.getProductId(); |
| mClass = device.getDeviceClass(); |
| mSubclass = device.getDeviceSubclass(); |
| mProtocol = device.getDeviceProtocol(); |
| mManufacturerName = device.getManufacturerName(); |
| mProductName = device.getProductName(); |
| mSerialNumber = device.getSerialNumber(); |
| } |
| |
| public static DeviceFilter read(XmlPullParser parser) |
| throws XmlPullParserException, IOException { |
| int vendorId = -1; |
| int productId = -1; |
| int deviceClass = -1; |
| int deviceSubclass = -1; |
| int deviceProtocol = -1; |
| String manufacturerName = null; |
| String productName = null; |
| String serialNumber = null; |
| |
| int count = parser.getAttributeCount(); |
| for (int i = 0; i < count; i++) { |
| String name = parser.getAttributeName(i); |
| String value = parser.getAttributeValue(i); |
| // Attribute values are ints or strings |
| if ("manufacturer-name".equals(name)) { |
| manufacturerName = value; |
| } else if ("product-name".equals(name)) { |
| productName = value; |
| } else if ("serial-number".equals(name)) { |
| serialNumber = value; |
| } else { |
| int intValue = -1; |
| int radix = 10; |
| if (value != null && value.length() > 2 && value.charAt(0) == '0' && |
| (value.charAt(1) == 'x' || value.charAt(1) == 'X')) { |
| // allow hex values starting with 0x or 0X |
| radix = 16; |
| value = value.substring(2); |
| } |
| try { |
| intValue = Integer.parseInt(value, radix); |
| } catch (NumberFormatException e) { |
| Slog.e(TAG, "invalid number for field " + name, e); |
| continue; |
| } |
| if ("vendor-id".equals(name)) { |
| vendorId = intValue; |
| } else if ("product-id".equals(name)) { |
| productId = intValue; |
| } else if ("class".equals(name)) { |
| deviceClass = intValue; |
| } else if ("subclass".equals(name)) { |
| deviceSubclass = intValue; |
| } else if ("protocol".equals(name)) { |
| deviceProtocol = intValue; |
| } |
| } |
| } |
| return new DeviceFilter(vendorId, productId, |
| deviceClass, deviceSubclass, deviceProtocol, |
| manufacturerName, productName, serialNumber); |
| } |
| |
| public void write(XmlSerializer serializer) throws IOException { |
| serializer.startTag(null, "usb-device"); |
| if (mVendorId != -1) { |
| serializer.attribute(null, "vendor-id", Integer.toString(mVendorId)); |
| } |
| if (mProductId != -1) { |
| serializer.attribute(null, "product-id", Integer.toString(mProductId)); |
| } |
| if (mClass != -1) { |
| serializer.attribute(null, "class", Integer.toString(mClass)); |
| } |
| if (mSubclass != -1) { |
| serializer.attribute(null, "subclass", Integer.toString(mSubclass)); |
| } |
| if (mProtocol != -1) { |
| serializer.attribute(null, "protocol", Integer.toString(mProtocol)); |
| } |
| if (mManufacturerName != null) { |
| serializer.attribute(null, "manufacturer-name", mManufacturerName); |
| } |
| if (mProductName != null) { |
| serializer.attribute(null, "product-name", mProductName); |
| } |
| if (mSerialNumber != null) { |
| serializer.attribute(null, "serial-number", mSerialNumber); |
| } |
| serializer.endTag(null, "usb-device"); |
| } |
| |
| private boolean matches(int clasz, int subclass, int protocol) { |
| return ((mClass == -1 || clasz == mClass) && |
| (mSubclass == -1 || subclass == mSubclass) && |
| (mProtocol == -1 || protocol == mProtocol)); |
| } |
| |
| public boolean matches(UsbDevice device) { |
| if (mVendorId != -1 && device.getVendorId() != mVendorId) return false; |
| if (mProductId != -1 && device.getProductId() != mProductId) return false; |
| if (mManufacturerName != null && device.getManufacturerName() == null) return false; |
| if (mProductName != null && device.getProductName() == null) return false; |
| if (mSerialNumber != null && device.getSerialNumber() == null) return false; |
| if (mManufacturerName != null && device.getManufacturerName() != null && |
| !mManufacturerName.equals(device.getManufacturerName())) return false; |
| if (mProductName != null && device.getProductName() != null && |
| !mProductName.equals(device.getProductName())) return false; |
| if (mSerialNumber != null && device.getSerialNumber() != null && |
| !mSerialNumber.equals(device.getSerialNumber())) return false; |
| |
| // check device class/subclass/protocol |
| if (matches(device.getDeviceClass(), device.getDeviceSubclass(), |
| device.getDeviceProtocol())) return true; |
| |
| // if device doesn't match, check the interfaces |
| int count = device.getInterfaceCount(); |
| for (int i = 0; i < count; i++) { |
| UsbInterface intf = device.getInterface(i); |
| if (matches(intf.getInterfaceClass(), intf.getInterfaceSubclass(), |
| intf.getInterfaceProtocol())) return true; |
| } |
| |
| return false; |
| } |
| |
| /** |
| * If the device described by {@code device} covered by this filter? |
| * |
| * @param device The device |
| * |
| * @return {@code true} iff this filter covers the {@code device} |
| */ |
| public boolean contains(DeviceFilter device) { |
| // -1 and null means "match anything" |
| |
| if (mVendorId != -1 && device.mVendorId != mVendorId) return false; |
| if (mProductId != -1 && device.mProductId != mProductId) return false; |
| if (mManufacturerName != null && !Objects.equals(mManufacturerName, |
| device.mManufacturerName)) { |
| return false; |
| } |
| if (mProductName != null && !Objects.equals(mProductName, device.mProductName)) { |
| return false; |
| } |
| if (mSerialNumber != null |
| && !Objects.equals(mSerialNumber, device.mSerialNumber)) { |
| return false; |
| } |
| |
| // check device class/subclass/protocol |
| return matches(device.mClass, device.mSubclass, device.mProtocol); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| // can't compare if we have wildcard strings |
| if (mVendorId == -1 || mProductId == -1 || |
| mClass == -1 || mSubclass == -1 || mProtocol == -1) { |
| return false; |
| } |
| if (obj instanceof DeviceFilter) { |
| DeviceFilter filter = (DeviceFilter)obj; |
| |
| if (filter.mVendorId != mVendorId || |
| filter.mProductId != mProductId || |
| filter.mClass != mClass || |
| filter.mSubclass != mSubclass || |
| filter.mProtocol != mProtocol) { |
| return(false); |
| } |
| if ((filter.mManufacturerName != null && |
| mManufacturerName == null) || |
| (filter.mManufacturerName == null && |
| mManufacturerName != null) || |
| (filter.mProductName != null && |
| mProductName == null) || |
| (filter.mProductName == null && |
| mProductName != null) || |
| (filter.mSerialNumber != null && |
| mSerialNumber == null) || |
| (filter.mSerialNumber == null && |
| mSerialNumber != null)) { |
| return(false); |
| } |
| if ((filter.mManufacturerName != null && |
| mManufacturerName != null && |
| !mManufacturerName.equals(filter.mManufacturerName)) || |
| (filter.mProductName != null && |
| mProductName != null && |
| !mProductName.equals(filter.mProductName)) || |
| (filter.mSerialNumber != null && |
| mSerialNumber != null && |
| !mSerialNumber.equals(filter.mSerialNumber))) { |
| return(false); |
| } |
| return(true); |
| } |
| if (obj instanceof UsbDevice) { |
| UsbDevice device = (UsbDevice)obj; |
| if (device.getVendorId() != mVendorId || |
| device.getProductId() != mProductId || |
| device.getDeviceClass() != mClass || |
| device.getDeviceSubclass() != mSubclass || |
| device.getDeviceProtocol() != mProtocol) { |
| return(false); |
| } |
| if ((mManufacturerName != null && device.getManufacturerName() == null) || |
| (mManufacturerName == null && device.getManufacturerName() != null) || |
| (mProductName != null && device.getProductName() == null) || |
| (mProductName == null && device.getProductName() != null) || |
| (mSerialNumber != null && device.getSerialNumber() == null) || |
| (mSerialNumber == null && device.getSerialNumber() != null)) { |
| return(false); |
| } |
| if ((device.getManufacturerName() != null && |
| !mManufacturerName.equals(device.getManufacturerName())) || |
| (device.getProductName() != null && |
| !mProductName.equals(device.getProductName())) || |
| (device.getSerialNumber() != null && |
| !mSerialNumber.equals(device.getSerialNumber()))) { |
| return(false); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| return (((mVendorId << 16) | mProductId) ^ |
| ((mClass << 16) | (mSubclass << 8) | mProtocol)); |
| } |
| |
| @Override |
| public String toString() { |
| return "DeviceFilter[mVendorId=" + mVendorId + ",mProductId=" + mProductId + |
| ",mClass=" + mClass + ",mSubclass=" + mSubclass + |
| ",mProtocol=" + mProtocol + ",mManufacturerName=" + mManufacturerName + |
| ",mProductName=" + mProductName + ",mSerialNumber=" + mSerialNumber + |
| "]"; |
| } |
| } |
| |
| // This class is used to describe a USB accessory. |
| // When used in HashMaps all values must be specified, |
| // but wildcards can be used for any of the fields in |
| // the package meta-data. |
| private static class AccessoryFilter { |
| // USB accessory manufacturer (or null for unspecified) |
| public final String mManufacturer; |
| // USB accessory model (or null for unspecified) |
| public final String mModel; |
| // USB accessory version (or null for unspecified) |
| public final String mVersion; |
| |
| public AccessoryFilter(String manufacturer, String model, String version) { |
| mManufacturer = manufacturer; |
| mModel = model; |
| mVersion = version; |
| } |
| |
| public AccessoryFilter(UsbAccessory accessory) { |
| mManufacturer = accessory.getManufacturer(); |
| mModel = accessory.getModel(); |
| mVersion = accessory.getVersion(); |
| } |
| |
| public static AccessoryFilter read(XmlPullParser parser) |
| throws XmlPullParserException, IOException { |
| String manufacturer = null; |
| String model = null; |
| String version = null; |
| |
| int count = parser.getAttributeCount(); |
| for (int i = 0; i < count; i++) { |
| String name = parser.getAttributeName(i); |
| String value = parser.getAttributeValue(i); |
| |
| if ("manufacturer".equals(name)) { |
| manufacturer = value; |
| } else if ("model".equals(name)) { |
| model = value; |
| } else if ("version".equals(name)) { |
| version = value; |
| } |
| } |
| return new AccessoryFilter(manufacturer, model, version); |
| } |
| |
| public void write(XmlSerializer serializer)throws IOException { |
| serializer.startTag(null, "usb-accessory"); |
| if (mManufacturer != null) { |
| serializer.attribute(null, "manufacturer", mManufacturer); |
| } |
| if (mModel != null) { |
| serializer.attribute(null, "model", mModel); |
| } |
| if (mVersion != null) { |
| serializer.attribute(null, "version", mVersion); |
| } |
| serializer.endTag(null, "usb-accessory"); |
| } |
| |
| public boolean matches(UsbAccessory acc) { |
| if (mManufacturer != null && !acc.getManufacturer().equals(mManufacturer)) return false; |
| if (mModel != null && !acc.getModel().equals(mModel)) return false; |
| if (mVersion != null && !acc.getVersion().equals(mVersion)) return false; |
| return true; |
| } |
| |
| /** |
| * Is the accessories described {@code accessory} covered by this filter? |
| * |
| * @param accessory A filter describing the accessory |
| * |
| * @return {@code true} iff this the filter covers the accessory |
| */ |
| public boolean contains(AccessoryFilter accessory) { |
| if (mManufacturer != null && !Objects.equals(accessory.mManufacturer, mManufacturer)) { |
| return false; |
| } |
| if (mModel != null && !Objects.equals(accessory.mModel, mModel)) return false; |
| if (mVersion != null && !Objects.equals(accessory.mVersion, mVersion)) return false; |
| return true; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| // can't compare if we have wildcard strings |
| if (mManufacturer == null || mModel == null || mVersion == null) { |
| return false; |
| } |
| if (obj instanceof AccessoryFilter) { |
| AccessoryFilter filter = (AccessoryFilter)obj; |
| return (mManufacturer.equals(filter.mManufacturer) && |
| mModel.equals(filter.mModel) && |
| mVersion.equals(filter.mVersion)); |
| } |
| if (obj instanceof UsbAccessory) { |
| UsbAccessory accessory = (UsbAccessory)obj; |
| return (mManufacturer.equals(accessory.getManufacturer()) && |
| mModel.equals(accessory.getModel()) && |
| mVersion.equals(accessory.getVersion())); |
| } |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| return ((mManufacturer == null ? 0 : mManufacturer.hashCode()) ^ |
| (mModel == null ? 0 : mModel.hashCode()) ^ |
| (mVersion == null ? 0 : mVersion.hashCode())); |
| } |
| |
| @Override |
| public String toString() { |
| return "AccessoryFilter[mManufacturer=\"" + mManufacturer + |
| "\", mModel=\"" + mModel + |
| "\", mVersion=\"" + mVersion + "\"]"; |
| } |
| } |
| |
| private class MyPackageMonitor extends PackageMonitor { |
| @Override |
| public void onPackageAdded(String packageName, int uid) { |
| if (!mUserManager.isSameProfileGroup(mParentUser.getIdentifier(), |
| UserHandle.getUserId(uid))) { |
| return; |
| } |
| |
| handlePackageAdded(new UserPackage(packageName, UserHandle.getUserHandleForUid(uid))); |
| } |
| |
| @Override |
| public void onPackageRemoved(String packageName, int uid) { |
| if (!mUserManager.isSameProfileGroup(mParentUser.getIdentifier(), |
| UserHandle.getUserId(uid))) { |
| return; |
| } |
| |
| clearDefaults(packageName, UserHandle.getUserHandleForUid(uid)); |
| } |
| } |
| |
| MyPackageMonitor mPackageMonitor = new MyPackageMonitor(); |
| |
| private final MtpNotificationManager mMtpNotificationManager; |
| |
| /** |
| * Create new settings manager for a profile group. |
| * |
| * @param context The context of the service |
| * @param user The parent profile |
| * @param settingsManager The settings manager of the service |
| */ |
| UsbProfileGroupSettingsManager(@NonNull Context context, @NonNull UserHandle user, |
| @NonNull UsbSettingsManager settingsManager) { |
| if (DEBUG) Slog.v(TAG, "Creating settings for " + user); |
| |
| Context parentUserContext; |
| try { |
| parentUserContext = context.createPackageContextAsUser("android", 0, user); |
| } catch (NameNotFoundException e) { |
| throw new RuntimeException("Missing android package"); |
| } |
| |
| mContext = context; |
| mPackageManager = context.getPackageManager(); |
| mSettingsManager = settingsManager; |
| mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); |
| |
| mParentUser = user; |
| mSettingsFile = new AtomicFile(new File( |
| Environment.getUserSystemDirectory(user.getIdentifier()), |
| "usb_device_manager.xml")); |
| |
| mDisablePermissionDialogs = context.getResources().getBoolean( |
| com.android.internal.R.bool.config_disableUsbPermissionDialogs); |
| |
| synchronized (mLock) { |
| if (UserHandle.SYSTEM.equals(user)) { |
| upgradeSingleUserLocked(); |
| } |
| readSettingsLocked(); |
| } |
| |
| mPackageMonitor.register(context, null, UserHandle.ALL, true); |
| mMtpNotificationManager = new MtpNotificationManager( |
| parentUserContext, |
| new MtpNotificationManager.OnOpenInAppListener() { |
| @Override |
| public void onOpenInApp(UsbDevice device) { |
| resolveActivity(createDeviceAttachedIntent(device), |
| device, false /* showMtpNotification */); |
| } |
| }); |
| } |
| |
| /** |
| * Remove all defaults for a user. |
| * |
| * @param userToRemove The user the defaults belong to. |
| */ |
| void removeAllDefaultsForUser(@NonNull UserHandle userToRemove) { |
| synchronized (mLock) { |
| boolean needToPersist = false; |
| Iterator<Map.Entry<DeviceFilter, UserPackage>> devicePreferenceIt = mDevicePreferenceMap |
| .entrySet().iterator(); |
| while (devicePreferenceIt.hasNext()) { |
| Map.Entry<DeviceFilter, UserPackage> entry = devicePreferenceIt.next(); |
| |
| if (entry.getValue().user.equals(userToRemove)) { |
| devicePreferenceIt.remove(); |
| needToPersist = true; |
| } |
| } |
| |
| Iterator<Map.Entry<AccessoryFilter, UserPackage>> accessoryPreferenceIt = |
| mAccessoryPreferenceMap.entrySet().iterator(); |
| while (accessoryPreferenceIt.hasNext()) { |
| Map.Entry<AccessoryFilter, UserPackage> entry = accessoryPreferenceIt.next(); |
| |
| if (entry.getValue().user.equals(userToRemove)) { |
| accessoryPreferenceIt.remove(); |
| needToPersist = true; |
| } |
| } |
| |
| if (needToPersist) { |
| scheduleWriteSettingsLocked(); |
| } |
| } |
| } |
| |
| private void readPreference(XmlPullParser parser) |
| throws XmlPullParserException, IOException { |
| String packageName = null; |
| |
| // If not set, assume it to be the parent profile |
| UserHandle user = mParentUser; |
| |
| int count = parser.getAttributeCount(); |
| for (int i = 0; i < count; i++) { |
| if ("package".equals(parser.getAttributeName(i))) { |
| packageName = parser.getAttributeValue(i); |
| } |
| if ("user".equals(parser.getAttributeName(i))) { |
| // Might return null if user is not known anymore |
| user = mUserManager |
| .getUserForSerialNumber(Integer.parseInt(parser.getAttributeValue(i))); |
| } |
| } |
| |
| XmlUtils.nextElement(parser); |
| if ("usb-device".equals(parser.getName())) { |
| DeviceFilter filter = DeviceFilter.read(parser); |
| if (user != null) { |
| mDevicePreferenceMap.put(filter, new UserPackage(packageName, user)); |
| } |
| } else if ("usb-accessory".equals(parser.getName())) { |
| AccessoryFilter filter = AccessoryFilter.read(parser); |
| if (user != null) { |
| mAccessoryPreferenceMap.put(filter, new UserPackage(packageName, user)); |
| } |
| } |
| XmlUtils.nextElement(parser); |
| } |
| |
| /** |
| * Upgrade any single-user settings from {@link #sSingleUserSettingsFile}. |
| * Should only by called by owner. |
| */ |
| private void upgradeSingleUserLocked() { |
| if (sSingleUserSettingsFile.exists()) { |
| mDevicePreferenceMap.clear(); |
| mAccessoryPreferenceMap.clear(); |
| |
| FileInputStream fis = null; |
| try { |
| fis = new FileInputStream(sSingleUserSettingsFile); |
| XmlPullParser parser = Xml.newPullParser(); |
| parser.setInput(fis, StandardCharsets.UTF_8.name()); |
| |
| XmlUtils.nextElement(parser); |
| while (parser.getEventType() != XmlPullParser.END_DOCUMENT) { |
| final String tagName = parser.getName(); |
| if ("preference".equals(tagName)) { |
| readPreference(parser); |
| } else { |
| XmlUtils.nextElement(parser); |
| } |
| } |
| } catch (IOException e) { |
| Log.wtf(TAG, "Failed to read single-user settings", e); |
| } catch (XmlPullParserException e) { |
| Log.wtf(TAG, "Failed to read single-user settings", e); |
| } finally { |
| IoUtils.closeQuietly(fis); |
| } |
| |
| scheduleWriteSettingsLocked(); |
| |
| // Success or failure, we delete single-user file |
| sSingleUserSettingsFile.delete(); |
| } |
| } |
| |
| private void readSettingsLocked() { |
| if (DEBUG) Slog.v(TAG, "readSettingsLocked()"); |
| |
| mDevicePreferenceMap.clear(); |
| mAccessoryPreferenceMap.clear(); |
| |
| FileInputStream stream = null; |
| try { |
| stream = mSettingsFile.openRead(); |
| XmlPullParser parser = Xml.newPullParser(); |
| parser.setInput(stream, StandardCharsets.UTF_8.name()); |
| |
| XmlUtils.nextElement(parser); |
| while (parser.getEventType() != XmlPullParser.END_DOCUMENT) { |
| String tagName = parser.getName(); |
| if ("preference".equals(tagName)) { |
| readPreference(parser); |
| } else { |
| XmlUtils.nextElement(parser); |
| } |
| } |
| } catch (FileNotFoundException e) { |
| if (DEBUG) Slog.d(TAG, "settings file not found"); |
| } catch (Exception e) { |
| Slog.e(TAG, "error reading settings file, deleting to start fresh", e); |
| mSettingsFile.delete(); |
| } finally { |
| IoUtils.closeQuietly(stream); |
| } |
| } |
| |
| /** |
| * Schedule a async task to persist {@link #mDevicePreferenceMap} and |
| * {@link #mAccessoryPreferenceMap}. If a task is already scheduled but not completed, do |
| * nothing as the currently scheduled one will do the work. |
| * <p>Called with {@link #mLock} held.</p> |
| * <p>In the uncommon case that the system crashes in between the scheduling and the write the |
| * update is lost.</p> |
| */ |
| private void scheduleWriteSettingsLocked() { |
| if (mIsWriteSettingsScheduled) { |
| return; |
| } else { |
| mIsWriteSettingsScheduled = true; |
| } |
| |
| AsyncTask.execute(() -> { |
| synchronized (mLock) { |
| FileOutputStream fos = null; |
| try { |
| fos = mSettingsFile.startWrite(); |
| |
| FastXmlSerializer serializer = new FastXmlSerializer(); |
| serializer.setOutput(fos, StandardCharsets.UTF_8.name()); |
| serializer.startDocument(null, true); |
| serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", |
| true); |
| serializer.startTag(null, "settings"); |
| |
| for (DeviceFilter filter : mDevicePreferenceMap.keySet()) { |
| serializer.startTag(null, "preference"); |
| serializer.attribute(null, "package", |
| mDevicePreferenceMap.get(filter).packageName); |
| serializer.attribute(null, "user", |
| String.valueOf(getSerial(mDevicePreferenceMap.get(filter).user))); |
| filter.write(serializer); |
| serializer.endTag(null, "preference"); |
| } |
| |
| for (AccessoryFilter filter : mAccessoryPreferenceMap.keySet()) { |
| serializer.startTag(null, "preference"); |
| serializer.attribute(null, "package", |
| mAccessoryPreferenceMap.get(filter).packageName); |
| serializer.attribute(null, "user", String.valueOf( |
| getSerial(mAccessoryPreferenceMap.get(filter).user))); |
| filter.write(serializer); |
| serializer.endTag(null, "preference"); |
| } |
| |
| serializer.endTag(null, "settings"); |
| serializer.endDocument(); |
| |
| mSettingsFile.finishWrite(fos); |
| } catch (IOException e) { |
| Slog.e(TAG, "Failed to write settings", e); |
| if (fos != null) { |
| mSettingsFile.failWrite(fos); |
| } |
| } |
| |
| mIsWriteSettingsScheduled = false; |
| } |
| }); |
| } |
| |
| // Checks to see if a package matches a device or accessory. |
| // Only one of device and accessory should be non-null. |
| private boolean packageMatchesLocked(ResolveInfo info, String metaDataName, |
| UsbDevice device, UsbAccessory accessory) { |
| if (isForwardMatch(info)) { |
| return true; |
| } |
| |
| ActivityInfo ai = info.activityInfo; |
| |
| XmlResourceParser parser = null; |
| try { |
| parser = ai.loadXmlMetaData(mPackageManager, metaDataName); |
| if (parser == null) { |
| Slog.w(TAG, "no meta-data for " + info); |
| return false; |
| } |
| |
| XmlUtils.nextElement(parser); |
| while (parser.getEventType() != XmlPullParser.END_DOCUMENT) { |
| String tagName = parser.getName(); |
| if (device != null && "usb-device".equals(tagName)) { |
| DeviceFilter filter = DeviceFilter.read(parser); |
| if (filter.matches(device)) { |
| return true; |
| } |
| } |
| else if (accessory != null && "usb-accessory".equals(tagName)) { |
| AccessoryFilter filter = AccessoryFilter.read(parser); |
| if (filter.matches(accessory)) { |
| return true; |
| } |
| } |
| XmlUtils.nextElement(parser); |
| } |
| } catch (Exception e) { |
| Slog.w(TAG, "Unable to load component info " + info.toString(), e); |
| } finally { |
| if (parser != null) parser.close(); |
| } |
| return false; |
| } |
| |
| /** |
| * Resolve all activities that match an intent for all profiles of this group. |
| * |
| * @param intent The intent to resolve |
| * |
| * @return The {@link ResolveInfo}s for all profiles of the group |
| */ |
| private @NonNull ArrayList<ResolveInfo> queryIntentActivitiesForAllProfiles( |
| @NonNull Intent intent) { |
| List<UserInfo> profiles = mUserManager.getEnabledProfiles(mParentUser.getIdentifier()); |
| |
| ArrayList<ResolveInfo> resolveInfos = new ArrayList<>(); |
| int numProfiles = profiles.size(); |
| for (int i = 0; i < numProfiles; i++) { |
| resolveInfos.addAll(mPackageManager.queryIntentActivitiesAsUser(intent, |
| PackageManager.GET_META_DATA, profiles.get(i).id)); |
| } |
| |
| return resolveInfos; |
| } |
| |
| /** |
| * If this match used to forward the intent to another profile? |
| * |
| * @param match The match |
| * |
| * @return {@code true} iff this is such a forward match |
| */ |
| private boolean isForwardMatch(@NonNull ResolveInfo match) { |
| return match.getComponentInfo().name.equals(FORWARD_INTENT_TO_MANAGED_PROFILE); |
| } |
| |
| /** |
| * Only return those matches with the highest priority. |
| * |
| * @param matches All matches, some might have lower priority |
| * |
| * @return The matches with the highest priority |
| */ |
| @NonNull |
| private ArrayList<ResolveInfo> preferHighPriority(@NonNull ArrayList<ResolveInfo> matches) { |
| SparseArray<ArrayList<ResolveInfo>> highestPriorityMatchesByUserId = new SparseArray<>(); |
| SparseIntArray highestPriorityByUserId = new SparseIntArray(); |
| ArrayList<ResolveInfo> forwardMatches = new ArrayList<>(); |
| |
| // Create list of highest priority matches per user in highestPriorityMatchesByUserId |
| int numMatches = matches.size(); |
| for (int matchNum = 0; matchNum < numMatches; matchNum++) { |
| ResolveInfo match = matches.get(matchNum); |
| |
| // Unnecessary forward matches are filtered out later, hence collect them all to add |
| // them below |
| if (isForwardMatch(match)) { |
| forwardMatches.add(match); |
| continue; |
| } |
| |
| // If this a previously unknown user? |
| if (highestPriorityByUserId.indexOfKey(match.targetUserId) < 0) { |
| highestPriorityByUserId.put(match.targetUserId, Integer.MIN_VALUE); |
| highestPriorityMatchesByUserId.put(match.targetUserId, new ArrayList<>()); |
| } |
| |
| // Find current highest priority matches for the current user |
| int highestPriority = highestPriorityByUserId.get(match.targetUserId); |
| ArrayList<ResolveInfo> highestPriorityMatches = highestPriorityMatchesByUserId.get( |
| match.targetUserId); |
| |
| if (match.priority == highestPriority) { |
| highestPriorityMatches.add(match); |
| } else if (match.priority > highestPriority) { |
| highestPriorityByUserId.put(match.targetUserId, match.priority); |
| |
| highestPriorityMatches.clear(); |
| highestPriorityMatches.add(match); |
| } |
| } |
| |
| // Combine all users (+ forward matches) back together. This means that all non-forward |
| // matches have the same priority for a user. Matches for different users might have |
| // different priority. |
| ArrayList<ResolveInfo> combinedMatches = new ArrayList<>(forwardMatches); |
| int numMatchArrays = highestPriorityMatchesByUserId.size(); |
| for (int matchArrayNum = 0; matchArrayNum < numMatchArrays; matchArrayNum++) { |
| combinedMatches.addAll(highestPriorityMatchesByUserId.valueAt(matchArrayNum)); |
| } |
| |
| return combinedMatches; |
| } |
| |
| /** |
| * If there are no matches for a profile, remove the forward intent to this profile. |
| * |
| * @param rawMatches The matches that contain all forward intents |
| * |
| * @return The matches with the unnecessary forward intents removed |
| */ |
| @NonNull private ArrayList<ResolveInfo> removeForwardIntentIfNotNeeded( |
| @NonNull ArrayList<ResolveInfo> rawMatches) { |
| final int numRawMatches = rawMatches.size(); |
| |
| // The raw matches contain the activities that can be started but also the intents to |
| // forward the intent to the other profile |
| int numParentActivityMatches = 0; |
| int numNonParentActivityMatches = 0; |
| for (int i = 0; i < numRawMatches; i++) { |
| final ResolveInfo rawMatch = rawMatches.get(i); |
| if (!isForwardMatch(rawMatch)) { |
| if (UserHandle.getUserHandleForUid( |
| rawMatch.activityInfo.applicationInfo.uid).equals(mParentUser)) { |
| numParentActivityMatches++; |
| } else { |
| numNonParentActivityMatches++; |
| } |
| } |
| } |
| |
| // If only one profile has activity matches, we need to remove all switch intents |
| if (numParentActivityMatches == 0 || numNonParentActivityMatches == 0) { |
| ArrayList<ResolveInfo> matches = new ArrayList<>( |
| numParentActivityMatches + numNonParentActivityMatches); |
| |
| for (int i = 0; i < numRawMatches; i++) { |
| ResolveInfo rawMatch = rawMatches.get(i); |
| if (!isForwardMatch(rawMatch)) { |
| matches.add(rawMatch); |
| } |
| } |
| return matches; |
| |
| } else { |
| return rawMatches; |
| } |
| } |
| |
| private final ArrayList<ResolveInfo> getDeviceMatchesLocked(UsbDevice device, Intent intent) { |
| ArrayList<ResolveInfo> matches = new ArrayList<ResolveInfo>(); |
| List<ResolveInfo> resolveInfos = queryIntentActivitiesForAllProfiles(intent); |
| int count = resolveInfos.size(); |
| for (int i = 0; i < count; i++) { |
| ResolveInfo resolveInfo = resolveInfos.get(i); |
| if (packageMatchesLocked(resolveInfo, intent.getAction(), device, null)) { |
| matches.add(resolveInfo); |
| } |
| } |
| |
| return removeForwardIntentIfNotNeeded(preferHighPriority(matches)); |
| } |
| |
| private final ArrayList<ResolveInfo> getAccessoryMatchesLocked( |
| UsbAccessory accessory, Intent intent) { |
| ArrayList<ResolveInfo> matches = new ArrayList<ResolveInfo>(); |
| List<ResolveInfo> resolveInfos = queryIntentActivitiesForAllProfiles(intent); |
| int count = resolveInfos.size(); |
| for (int i = 0; i < count; i++) { |
| ResolveInfo resolveInfo = resolveInfos.get(i); |
| if (packageMatchesLocked(resolveInfo, intent.getAction(), null, accessory)) { |
| matches.add(resolveInfo); |
| } |
| } |
| |
| return removeForwardIntentIfNotNeeded(preferHighPriority(matches)); |
| } |
| |
| public void deviceAttached(UsbDevice device) { |
| final Intent intent = createDeviceAttachedIntent(device); |
| |
| // Send broadcast to running activities with registered intent |
| mContext.sendBroadcastAsUser(intent, UserHandle.ALL); |
| |
| resolveActivity(intent, device, true /* showMtpNotification */); |
| } |
| |
| private void resolveActivity(Intent intent, UsbDevice device, boolean showMtpNotification) { |
| final ArrayList<ResolveInfo> matches; |
| final ActivityInfo defaultActivity; |
| synchronized (mLock) { |
| matches = getDeviceMatchesLocked(device, intent); |
| defaultActivity = getDefaultActivityLocked( |
| matches, mDevicePreferenceMap.get(new DeviceFilter(device))); |
| } |
| |
| if (showMtpNotification && MtpNotificationManager.shouldShowNotification( |
| mPackageManager, device) && defaultActivity == null) { |
| // Show notification if the device is MTP storage. |
| mMtpNotificationManager.showNotification(device); |
| return; |
| } |
| |
| // Start activity with registered intent |
| resolveActivity(intent, matches, defaultActivity, device, null); |
| } |
| |
| public void deviceAttachedForFixedHandler(UsbDevice device, ComponentName component) { |
| final Intent intent = createDeviceAttachedIntent(device); |
| |
| // Send broadcast to running activity with registered intent |
| mContext.sendBroadcast(intent); |
| |
| ApplicationInfo appInfo; |
| try { |
| // Fixed handlers are always for parent user |
| appInfo = mPackageManager.getApplicationInfoAsUser(component.getPackageName(), 0, |
| mParentUser.getIdentifier()); |
| } catch (NameNotFoundException e) { |
| Slog.e(TAG, "Default USB handling package (" + component.getPackageName() |
| + ") not found for user " + mParentUser); |
| return; |
| } |
| |
| mSettingsManager.getSettingsForUser(UserHandle.getUserId(appInfo.uid)) |
| .grantDevicePermission(device, appInfo.uid); |
| |
| Intent activityIntent = new Intent(intent); |
| activityIntent.setComponent(component); |
| try { |
| mContext.startActivityAsUser(activityIntent, mParentUser); |
| } catch (ActivityNotFoundException e) { |
| Slog.e(TAG, "unable to start activity " + activityIntent); |
| } |
| } |
| |
| /** |
| * Remove notifications for a usb device. |
| * |
| * @param device The device the notifications are for. |
| */ |
| void usbDeviceRemoved(@NonNull UsbDevice device) { |
| mMtpNotificationManager.hideNotification(device.getDeviceId()); |
| } |
| |
| public void accessoryAttached(UsbAccessory accessory) { |
| Intent intent = new Intent(UsbManager.ACTION_USB_ACCESSORY_ATTACHED); |
| intent.putExtra(UsbManager.EXTRA_ACCESSORY, accessory); |
| intent.addFlags( |
| Intent.FLAG_ACTIVITY_NEW_TASK | |
| Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); |
| |
| final ArrayList<ResolveInfo> matches; |
| final ActivityInfo defaultActivity; |
| synchronized (mLock) { |
| matches = getAccessoryMatchesLocked(accessory, intent); |
| defaultActivity = getDefaultActivityLocked( |
| matches, mAccessoryPreferenceMap.get(new AccessoryFilter(accessory))); |
| } |
| |
| resolveActivity(intent, matches, defaultActivity, null, accessory); |
| } |
| |
| /** |
| * Start the appropriate package when an device/accessory got attached. |
| * |
| * @param intent The intent to start the package |
| * @param matches The available resolutions of the intent |
| * @param defaultActivity The default activity for the device (if set) |
| * @param device The device if a device was attached |
| * @param accessory The accessory if a device was attached |
| */ |
| private void resolveActivity(@NonNull Intent intent, @NonNull ArrayList<ResolveInfo> matches, |
| @Nullable ActivityInfo defaultActivity, @Nullable UsbDevice device, |
| @Nullable UsbAccessory accessory) { |
| // don't show the resolver activity if there are no choices available |
| if (matches.size() == 0) { |
| if (accessory != null) { |
| String uri = accessory.getUri(); |
| if (uri != null && uri.length() > 0) { |
| // display URI to user |
| Intent dialogIntent = new Intent(); |
| dialogIntent.setClassName("com.android.systemui", |
| "com.android.systemui.usb.UsbAccessoryUriActivity"); |
| dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| dialogIntent.putExtra(UsbManager.EXTRA_ACCESSORY, accessory); |
| dialogIntent.putExtra("uri", uri); |
| try { |
| mContext.startActivityAsUser(dialogIntent, mParentUser); |
| } catch (ActivityNotFoundException e) { |
| Slog.e(TAG, "unable to start UsbAccessoryUriActivity"); |
| } |
| } |
| } |
| |
| // do nothing |
| return; |
| } |
| |
| if (defaultActivity != null) { |
| UsbUserSettingsManager defaultRIUserSettings = mSettingsManager.getSettingsForUser( |
| UserHandle.getUserId(defaultActivity.applicationInfo.uid)); |
| // grant permission for default activity |
| if (device != null) { |
| defaultRIUserSettings. |
| grantDevicePermission(device, defaultActivity.applicationInfo.uid); |
| } else if (accessory != null) { |
| defaultRIUserSettings.grantAccessoryPermission(accessory, |
| defaultActivity.applicationInfo.uid); |
| } |
| |
| // start default activity directly |
| try { |
| intent.setComponent( |
| new ComponentName(defaultActivity.packageName, defaultActivity.name)); |
| |
| UserHandle user = UserHandle.getUserHandleForUid( |
| defaultActivity.applicationInfo.uid); |
| mContext.startActivityAsUser(intent, user); |
| } catch (ActivityNotFoundException e) { |
| Slog.e(TAG, "startActivity failed", e); |
| } |
| } else { |
| Intent resolverIntent = new Intent(); |
| resolverIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| UserHandle user; |
| |
| if (matches.size() == 1) { |
| ResolveInfo rInfo = matches.get(0); |
| |
| // start UsbConfirmActivity if there is only one choice |
| resolverIntent.setClassName("com.android.systemui", |
| "com.android.systemui.usb.UsbConfirmActivity"); |
| resolverIntent.putExtra("rinfo", rInfo); |
| user = UserHandle.getUserHandleForUid(rInfo.activityInfo.applicationInfo.uid); |
| |
| if (device != null) { |
| resolverIntent.putExtra(UsbManager.EXTRA_DEVICE, device); |
| } else { |
| resolverIntent.putExtra(UsbManager.EXTRA_ACCESSORY, accessory); |
| } |
| } else { |
| user = mParentUser; |
| |
| // start UsbResolverActivity so user can choose an activity |
| resolverIntent.setClassName("com.android.systemui", |
| "com.android.systemui.usb.UsbResolverActivity"); |
| resolverIntent.putParcelableArrayListExtra("rlist", matches); |
| resolverIntent.putExtra(Intent.EXTRA_INTENT, intent); |
| } |
| try { |
| mContext.startActivityAsUser(resolverIntent, user); |
| } catch (ActivityNotFoundException e) { |
| Slog.e(TAG, "unable to start activity " + resolverIntent, e); |
| } |
| } |
| } |
| |
| /** |
| * Returns a default activity for matched ResolveInfo. |
| * @param matches Resolved activities matched with connected device/accesary. |
| * @param userPackage Default activity choosed by a user before. Should be null if no activity |
| * is choosed by a user. |
| * @return Default activity |
| */ |
| private @Nullable ActivityInfo getDefaultActivityLocked( |
| @NonNull ArrayList<ResolveInfo> matches, |
| @Nullable UserPackage userPackage) { |
| if (userPackage != null) { |
| // look for default activity |
| for (final ResolveInfo info : matches) { |
| if (info.activityInfo != null && userPackage.equals( |
| new UserPackage(info.activityInfo.packageName, |
| UserHandle.getUserHandleForUid( |
| info.activityInfo.applicationInfo.uid)))) { |
| return info.activityInfo; |
| } |
| } |
| } |
| |
| if (matches.size() == 1) { |
| final ActivityInfo activityInfo = matches.get(0).activityInfo; |
| if (activityInfo != null) { |
| if (mDisablePermissionDialogs) { |
| return activityInfo; |
| } |
| // System apps are considered default unless there are other matches |
| if (activityInfo.applicationInfo != null |
| && (activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) |
| != 0) { |
| return activityInfo; |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| private boolean clearCompatibleMatchesLocked(@NonNull UserPackage userPackage, |
| @NonNull DeviceFilter filter) { |
| ArrayList<DeviceFilter> keysToRemove = new ArrayList<>(); |
| |
| // The keys in mDevicePreferenceMap are filters that match devices very narrowly |
| for (DeviceFilter device : mDevicePreferenceMap.keySet()) { |
| if (filter.contains(device)) { |
| UserPackage currentMatch = mDevicePreferenceMap.get(device); |
| if (!currentMatch.equals(userPackage)) { |
| keysToRemove.add(device); |
| } |
| } |
| } |
| |
| if (!keysToRemove.isEmpty()) { |
| for (DeviceFilter keyToRemove : keysToRemove) { |
| mDevicePreferenceMap.remove(keyToRemove); |
| } |
| } |
| |
| return !keysToRemove.isEmpty(); |
| } |
| |
| private boolean clearCompatibleMatchesLocked(@NonNull UserPackage userPackage, |
| @NonNull AccessoryFilter filter) { |
| ArrayList<AccessoryFilter> keysToRemove = new ArrayList<>(); |
| |
| // The keys in mAccessoryPreferenceMap are filters that match accessories very narrowly |
| for (AccessoryFilter accessory : mAccessoryPreferenceMap.keySet()) { |
| if (filter.contains(accessory)) { |
| UserPackage currentMatch = mAccessoryPreferenceMap.get(accessory); |
| if (!currentMatch.equals(userPackage)) { |
| keysToRemove.add(accessory); |
| } |
| } |
| } |
| |
| if (!keysToRemove.isEmpty()) { |
| for (AccessoryFilter keyToRemove : keysToRemove) { |
| mAccessoryPreferenceMap.remove(keyToRemove); |
| } |
| } |
| |
| return !keysToRemove.isEmpty(); |
| } |
| |
| private boolean handlePackageAddedLocked(UserPackage userPackage, ActivityInfo aInfo, |
| String metaDataName) { |
| XmlResourceParser parser = null; |
| boolean changed = false; |
| |
| try { |
| parser = aInfo.loadXmlMetaData(mPackageManager, metaDataName); |
| if (parser == null) return false; |
| |
| XmlUtils.nextElement(parser); |
| while (parser.getEventType() != XmlPullParser.END_DOCUMENT) { |
| String tagName = parser.getName(); |
| if ("usb-device".equals(tagName)) { |
| DeviceFilter filter = DeviceFilter.read(parser); |
| if (clearCompatibleMatchesLocked(userPackage, filter)) { |
| changed = true; |
| } |
| } |
| else if ("usb-accessory".equals(tagName)) { |
| AccessoryFilter filter = AccessoryFilter.read(parser); |
| if (clearCompatibleMatchesLocked(userPackage, filter)) { |
| changed = true; |
| } |
| } |
| XmlUtils.nextElement(parser); |
| } |
| } catch (Exception e) { |
| Slog.w(TAG, "Unable to load component info " + aInfo.toString(), e); |
| } finally { |
| if (parser != null) parser.close(); |
| } |
| return changed; |
| } |
| |
| // Check to see if the package supports any USB devices or accessories. |
| // If so, clear any preferences for matching devices/accessories. |
| private void handlePackageAdded(@NonNull UserPackage userPackage) { |
| synchronized (mLock) { |
| PackageInfo info; |
| boolean changed = false; |
| |
| try { |
| info = mPackageManager.getPackageInfoAsUser(userPackage.packageName, |
| PackageManager.GET_ACTIVITIES | PackageManager.GET_META_DATA, |
| userPackage.user.getIdentifier()); |
| } catch (NameNotFoundException e) { |
| Slog.e(TAG, "handlePackageUpdate could not find package " + userPackage, e); |
| return; |
| } |
| |
| ActivityInfo[] activities = info.activities; |
| if (activities == null) return; |
| for (int i = 0; i < activities.length; i++) { |
| // check for meta-data, both for devices and accessories |
| if (handlePackageAddedLocked(userPackage, activities[i], |
| UsbManager.ACTION_USB_DEVICE_ATTACHED)) { |
| changed = true; |
| } |
| |
| if (handlePackageAddedLocked(userPackage, activities[i], |
| UsbManager.ACTION_USB_ACCESSORY_ATTACHED)) { |
| changed = true; |
| } |
| } |
| |
| if (changed) { |
| scheduleWriteSettingsLocked(); |
| } |
| } |
| } |
| |
| /** |
| * Get the serial number for a user handle. |
| * |
| * @param user The user handle |
| * |
| * @return The serial number |
| */ |
| private int getSerial(@NonNull UserHandle user) { |
| return mUserManager.getUserSerialNumber(user.getIdentifier()); |
| } |
| |
| /** |
| * Set a package as default handler for a device. |
| * |
| * @param device The device that should be handled by default |
| * @param packageName The default handler package |
| * @param user The user the package belongs to |
| */ |
| void setDevicePackage(@NonNull UsbDevice device, @Nullable String packageName, |
| @NonNull UserHandle user) { |
| DeviceFilter filter = new DeviceFilter(device); |
| boolean changed = false; |
| synchronized (mLock) { |
| if (packageName == null) { |
| changed = (mDevicePreferenceMap.remove(filter) != null); |
| } else { |
| UserPackage userPackage = new UserPackage(packageName, user); |
| |
| changed = !userPackage.equals(mDevicePreferenceMap.get(filter)); |
| if (changed) { |
| mDevicePreferenceMap.put(filter, userPackage); |
| } |
| } |
| if (changed) { |
| scheduleWriteSettingsLocked(); |
| } |
| } |
| } |
| |
| /** |
| * Set a package as default handler for a accessory. |
| * |
| * @param accessory The accessory that should be handled by default |
| * @param packageName The default handler package |
| * @param user The user the package belongs to |
| */ |
| void setAccessoryPackage(@NonNull UsbAccessory accessory, @Nullable String packageName, |
| @NonNull UserHandle user) { |
| AccessoryFilter filter = new AccessoryFilter(accessory); |
| boolean changed = false; |
| synchronized (mLock) { |
| if (packageName == null) { |
| changed = (mAccessoryPreferenceMap.remove(filter) != null); |
| } else { |
| UserPackage userPackage = new UserPackage(packageName, user); |
| |
| changed = !userPackage.equals(mAccessoryPreferenceMap.get(filter)); |
| if (changed) { |
| mAccessoryPreferenceMap.put(filter, userPackage); |
| } |
| } |
| if (changed) { |
| scheduleWriteSettingsLocked(); |
| } |
| } |
| } |
| |
| /** |
| * Check if a package has is the default handler for any usb device or accessory. |
| * |
| * @param packageName The package name |
| * @param user The user the package belongs to |
| * |
| * @return {@code true} iff the package is default for any usb device or accessory |
| */ |
| boolean hasDefaults(@NonNull String packageName, @NonNull UserHandle user) { |
| UserPackage userPackage = new UserPackage(packageName, user); |
| synchronized (mLock) { |
| if (mDevicePreferenceMap.values().contains(userPackage)) return true; |
| if (mAccessoryPreferenceMap.values().contains(userPackage)) return true; |
| return false; |
| } |
| } |
| |
| /** |
| * Clear defaults for a package from any preference. |
| * |
| * @param packageName The package to remove |
| * @param user The user the package belongs to |
| */ |
| void clearDefaults(@NonNull String packageName, @NonNull UserHandle user) { |
| UserPackage userPackage = new UserPackage(packageName, user); |
| |
| synchronized (mLock) { |
| if (clearPackageDefaultsLocked(userPackage)) { |
| scheduleWriteSettingsLocked(); |
| } |
| } |
| } |
| |
| /** |
| * Clear defaults for a package from any preference (does not persist). |
| * |
| * @param userPackage The package to remove |
| * |
| * @return {@code true} iff at least one preference was cleared |
| */ |
| private boolean clearPackageDefaultsLocked(@NonNull UserPackage userPackage) { |
| boolean cleared = false; |
| synchronized (mLock) { |
| if (mDevicePreferenceMap.containsValue(userPackage)) { |
| // make a copy of the key set to avoid ConcurrentModificationException |
| Object[] keys = mDevicePreferenceMap.keySet().toArray(); |
| for (int i = 0; i < keys.length; i++) { |
| Object key = keys[i]; |
| if (userPackage.equals(mDevicePreferenceMap.get(key))) { |
| mDevicePreferenceMap.remove(key); |
| cleared = true; |
| } |
| } |
| } |
| if (mAccessoryPreferenceMap.containsValue(userPackage)) { |
| // make a copy of the key set to avoid ConcurrentModificationException |
| Object[] keys = mAccessoryPreferenceMap.keySet().toArray(); |
| for (int i = 0; i < keys.length; i++) { |
| Object key = keys[i]; |
| if (userPackage.equals(mAccessoryPreferenceMap.get(key))) { |
| mAccessoryPreferenceMap.remove(key); |
| cleared = true; |
| } |
| } |
| } |
| return cleared; |
| } |
| } |
| |
| public void dump(IndentingPrintWriter pw) { |
| synchronized (mLock) { |
| pw.println("Device preferences:"); |
| for (DeviceFilter filter : mDevicePreferenceMap.keySet()) { |
| pw.println(" " + filter + ": " + mDevicePreferenceMap.get(filter)); |
| } |
| pw.println("Accessory preferences:"); |
| for (AccessoryFilter filter : mAccessoryPreferenceMap.keySet()) { |
| pw.println(" " + filter + ": " + mAccessoryPreferenceMap.get(filter)); |
| } |
| } |
| } |
| |
| private static Intent createDeviceAttachedIntent(UsbDevice device) { |
| Intent intent = new Intent(UsbManager.ACTION_USB_DEVICE_ATTACHED); |
| intent.putExtra(UsbManager.EXTRA_DEVICE, device); |
| intent.addFlags( |
| Intent.FLAG_ACTIVITY_NEW_TASK | |
| Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); |
| return intent; |
| } |
| } |
