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Adjust MTP to reference by specific volume name.

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The MediaStore.VOLUME_EXTERNAL volume is a merged view of all storage
devices, and clients working on a specific volume need to focus on
the volume they're interested in.

Bug: 129840030
Test: atest --test-mapping packages/providers/MediaProvider
Change-Id: I91cee6a96d7f9360e6a93a9a3c389b097b6b9967
This commit is contained in:
Jeff Sharkey
2019-04-17 11:16:12 -06:00
parent 469f1c90ed
commit 42bf6d8a42
4 changed files with 56 additions and 44 deletions
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57
media/java/android/mtp/MtpDatabase.java
View File

@@ -36,6 +36,7 @@ import android.system.ErrnoException;
import android.system.Os;
import android.system.OsConstants;
import android.util.Log;
import android.util.SparseArray;
import android.view.Display;
import android.view.WindowManager;
@@ -69,8 +70,6 @@ public class MtpDatabase implements AutoCloseable {
private final Context mContext;
private final ContentProviderClient mMediaProvider;
private final String mVolumeName;
private final Uri mObjectsUri;
private final AtomicBoolean mClosed = new AtomicBoolean();
private final CloseGuard mCloseGuard = CloseGuard.get();
@@ -78,10 +77,10 @@ public class MtpDatabase implements AutoCloseable {
private final HashMap<String, MtpStorage> mStorageMap = new HashMap<>();
// cached property groups for single properties
private final HashMap<Integer, MtpPropertyGroup> mPropertyGroupsByProperty = new HashMap<>();
private final SparseArray<MtpPropertyGroup> mPropertyGroupsByProperty = new SparseArray<>();
// cached property groups for all properties for a given format
private final HashMap<Integer, MtpPropertyGroup> mPropertyGroupsByFormat = new HashMap<>();
private final SparseArray<MtpPropertyGroup> mPropertyGroupsByFormat = new SparseArray<>();
// SharedPreferences for writable MTP device properties
private SharedPreferences mDeviceProperties;
@@ -271,14 +270,11 @@ public class MtpDatabase implements AutoCloseable {
}
};
public MtpDatabase(Context context, String volumeName,
String[] subDirectories) {
public MtpDatabase(Context context, String[] subDirectories) {
native_setup();
mContext = Objects.requireNonNull(context);
mMediaProvider = context.getContentResolver()
.acquireContentProviderClient(MediaStore.AUTHORITY);
mVolumeName = volumeName;
mObjectsUri = Files.getMtpObjectsUri(volumeName);
mManager = new MtpStorageManager(new MtpStorageManager.MtpNotifier() {
@Override
public void sendObjectAdded(int id) {
@@ -526,8 +522,7 @@ public class MtpDatabase implements AutoCloseable {
propertyGroup = mPropertyGroupsByFormat.get(format);
if (propertyGroup == null) {
final int[] propertyList = getSupportedObjectProperties(format);
propertyGroup = new MtpPropertyGroup(mMediaProvider, mVolumeName,
propertyList);
propertyGroup = new MtpPropertyGroup(propertyList);
mPropertyGroupsByFormat.put(format, propertyGroup);
}
} else {
@@ -535,12 +530,11 @@ public class MtpDatabase implements AutoCloseable {
propertyGroup = mPropertyGroupsByProperty.get(property);
if (propertyGroup == null) {
final int[] propertyList = new int[]{property};
propertyGroup = new MtpPropertyGroup(mMediaProvider, mVolumeName,
propertyList);
propertyGroup = new MtpPropertyGroup(propertyList);
mPropertyGroupsByProperty.put(property, propertyGroup);
}
}
int err = propertyGroup.getPropertyList(obj, ret);
int err = propertyGroup.getPropertyList(mMediaProvider, obj.getVolumeName(), obj, ret);
if (err != MtpConstants.RESPONSE_OK) {
return new MtpPropertyList(err);
}
@@ -581,7 +575,8 @@ public class MtpDatabase implements AutoCloseable {
try {
// note - we are relying on a special case in MediaProvider.update() to update
// the paths for all children in the case where this is a directory.
mMediaProvider.update(mObjectsUri, values, PATH_WHERE, whereArgs);
final Uri objectsUri = MediaStore.Files.getMtpObjectsUri(obj.getVolumeName());
mMediaProvider.update(objectsUri, values, PATH_WHERE, whereArgs);
} catch (RemoteException e) {
Log.e(TAG, "RemoteException in mMediaProvider.update", e);
}
@@ -640,12 +635,12 @@ public class MtpDatabase implements AutoCloseable {
if (obj.getParent().isRoot()) {
values.put(Files.FileColumns.PARENT, 0);
} else {
int parentId = findInMedia(path.getParent());
int parentId = findInMedia(newParentObj, path.getParent());
if (parentId != -1) {
values.put(Files.FileColumns.PARENT, parentId);
} else {
// The new parent isn't in MediaProvider, so delete the object instead
deleteFromMedia(oldPath, obj.isDir());
deleteFromMedia(obj, oldPath, obj.isDir());
return;
}
}
@@ -655,13 +650,14 @@ public class MtpDatabase implements AutoCloseable {
try {
int parentId = -1;
if (!oldParentObj.isRoot()) {
parentId = findInMedia(oldPath.getParent());
parentId = findInMedia(oldParentObj, oldPath.getParent());
}
if (oldParentObj.isRoot() || parentId != -1) {
// Old parent exists in MediaProvider - perform a move
// note - we are relying on a special case in MediaProvider.update() to update
// the paths for all children in the case where this is a directory.
mMediaProvider.update(mObjectsUri, values, PATH_WHERE, whereArgs);
final Uri objectsUri = MediaStore.Files.getMtpObjectsUri(obj.getVolumeName());
mMediaProvider.update(objectsUri, values, PATH_WHERE, whereArgs);
} else {
// Old parent doesn't exist - add the object
MediaStore.scanFile(mContext, path.toFile());
@@ -823,14 +819,16 @@ public class MtpDatabase implements AutoCloseable {
if (!mManager.endRemoveObject(obj, success))
Log.e(TAG, "Failed to end remove object");
if (success)
deleteFromMedia(obj.getPath(), obj.isDir());
deleteFromMedia(obj, obj.getPath(), obj.isDir());
}
private int findInMedia(Path path) {
private int findInMedia(MtpStorageManager.MtpObject obj, Path path) {
final Uri objectsUri = MediaStore.Files.getMtpObjectsUri(obj.getVolumeName());
int ret = -1;
Cursor c = null;
try {
c = mMediaProvider.query(mObjectsUri, ID_PROJECTION, PATH_WHERE,
c = mMediaProvider.query(objectsUri, ID_PROJECTION, PATH_WHERE,
new String[]{path.toString()}, null, null);
if (c != null && c.moveToNext()) {
ret = c.getInt(0);
@@ -844,12 +842,13 @@ public class MtpDatabase implements AutoCloseable {
return ret;
}
private void deleteFromMedia(Path path, boolean isDir) {
private void deleteFromMedia(MtpStorageManager.MtpObject obj, Path path, boolean isDir) {
final Uri objectsUri = MediaStore.Files.getMtpObjectsUri(obj.getVolumeName());
try {
// Delete the object(s) from MediaProvider, but ignore errors.
if (isDir) {
// recursive case - delete all children first
mMediaProvider.delete(mObjectsUri,
mMediaProvider.delete(objectsUri,
// the 'like' makes it use the index, the 'lower()' makes it correct
// when the path contains sqlite wildcard characters
"_data LIKE ?1 AND lower(substr(_data,1,?2))=lower(?3)",
@@ -858,7 +857,7 @@ public class MtpDatabase implements AutoCloseable {
}
String[] whereArgs = new String[]{path.toString()};
if (mMediaProvider.delete(mObjectsUri, PATH_WHERE, whereArgs) > 0) {
if (mMediaProvider.delete(objectsUri, PATH_WHERE, whereArgs) > 0) {
if (!isDir && path.toString().toLowerCase(Locale.US).endsWith(NO_MEDIA)) {
MediaStore.scanFile(mContext, path.getParent().toFile());
}
@@ -876,10 +875,10 @@ public class MtpDatabase implements AutoCloseable {
if (obj == null)
return null;
// Translate this handle to the MediaProvider Handle
handle = findInMedia(obj.getPath());
handle = findInMedia(obj, obj.getPath());
if (handle == -1)
return null;
Uri uri = Files.getMtpReferencesUri(mVolumeName, handle);
Uri uri = Files.getMtpReferencesUri(obj.getVolumeName(), handle);
Cursor c = null;
try {
c = mMediaProvider.query(uri, PATH_PROJECTION, null, null, null, null);
@@ -912,17 +911,17 @@ public class MtpDatabase implements AutoCloseable {
if (obj == null)
return MtpConstants.RESPONSE_INVALID_OBJECT_HANDLE;
// Translate this handle to the MediaProvider Handle
handle = findInMedia(obj.getPath());
handle = findInMedia(obj, obj.getPath());
if (handle == -1)
return MtpConstants.RESPONSE_GENERAL_ERROR;
Uri uri = Files.getMtpReferencesUri(mVolumeName, handle);
Uri uri = Files.getMtpReferencesUri(obj.getVolumeName(), handle);
ArrayList<ContentValues> valuesList = new ArrayList<>();
for (int id : references) {
// Translate each reference id to the MediaProvider Id
MtpStorageManager.MtpObject refObj = mManager.getObject(id);
if (refObj == null)
continue;
int refHandle = findInMedia(refObj.getPath());
int refHandle = findInMedia(refObj, refObj.getPath());
if (refHandle == -1)
continue;
ContentValues values = new ContentValues();