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MtpDatabase: Use actual file size instead of media database size column

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Fixes problems with file transfer from device to host that can occur
if the database size value is wrong.

Bug: 6954446

Change-Id: I03c3dd4b75267d1f4613f0b588c8899ded9a70be
Signed-off-by: Mike Lockwood <lockwood@google.com>
This commit is contained in:
Mike Lockwood
2012-09-12 15:50:59 -07:00
parent d428e95eb5
commit f6f1661457
2 changed files with 41 additions and 40 deletions
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25
media/java/android/mtp/MtpDatabase.java
View File

@@ -84,11 +84,10 @@ public class MtpDatabase {
Files.FileColumns._ID, // 0
Files.FileColumns.DATA, // 1
};
private static final String[] PATH_SIZE_FORMAT_PROJECTION = new String[] {
private static final String[] PATH_FORMAT_PROJECTION = new String[] {
Files.FileColumns._ID, // 0
Files.FileColumns.DATA, // 1
Files.FileColumns.SIZE, // 2
Files.FileColumns.FORMAT, // 3
Files.FileColumns.FORMAT, // 2
};
private static final String[] OBJECT_INFO_PROJECTION = new String[] {
Files.FileColumns._ID, // 0
@@ -96,8 +95,7 @@ public class MtpDatabase {
Files.FileColumns.FORMAT, // 2
Files.FileColumns.PARENT, // 3
Files.FileColumns.DATA, // 4
Files.FileColumns.SIZE, // 5
Files.FileColumns.DATE_MODIFIED, // 6
Files.FileColumns.DATE_MODIFIED, // 5
};
private static final String ID_WHERE = Files.FileColumns._ID + "=?";
private static final String PATH_WHERE = Files.FileColumns.DATA + "=?";
@@ -834,7 +832,7 @@ public class MtpDatabase {
}
private boolean getObjectInfo(int handle, int[] outStorageFormatParent,
char[] outName, long[] outSizeModified) {
char[] outName, long[] outModified) {
Cursor c = null;
try {
c = mMediaProvider.query(mObjectsUri, OBJECT_INFO_PROJECTION,
@@ -855,8 +853,7 @@ public class MtpDatabase {
path.getChars(start, end, outName, 0);
outName[end - start] = 0;
outSizeModified[0] = c.getLong(5);
outSizeModified[1] = c.getLong(6);
outModified[0] = c.getLong(5);
return true;
}
} catch (RemoteException e) {
@@ -880,14 +877,16 @@ public class MtpDatabase {
}
Cursor c = null;
try {
c = mMediaProvider.query(mObjectsUri, PATH_SIZE_FORMAT_PROJECTION,
c = mMediaProvider.query(mObjectsUri, PATH_FORMAT_PROJECTION,
ID_WHERE, new String[] { Integer.toString(handle) }, null, null);
if (c != null && c.moveToNext()) {
String path = c.getString(1);
path.getChars(0, path.length(), outFilePath, 0);
outFilePath[path.length()] = 0;
outFileLengthFormat[0] = c.getLong(2);
outFileLengthFormat[1] = c.getLong(3);
// File transfers from device to host will likely fail if the size is incorrect.
// So to be safe, use the actual file size here.
outFileLengthFormat[0] = new File(path).length();
outFileLengthFormat[1] = c.getLong(2);
return MtpConstants.RESPONSE_OK;
} else {
return MtpConstants.RESPONSE_INVALID_OBJECT_HANDLE;
@@ -909,13 +908,13 @@ public class MtpDatabase {
Cursor c = null;
try {
c = mMediaProvider.query(mObjectsUri, PATH_SIZE_FORMAT_PROJECTION,
c = mMediaProvider.query(mObjectsUri, PATH_FORMAT_PROJECTION,
ID_WHERE, new String[] { Integer.toString(handle) }, null, null);
if (c != null && c.moveToNext()) {
// don't convert to media path here, since we will be matching
// against paths in the database matching /data/media
path = c.getString(1);
format = c.getInt(3);
format = c.getInt(2);
} else {
return MtpConstants.RESPONSE_INVALID_OBJECT_HANDLE;
}