Joe Julian
101 lines
3.2 KiB
Java
101 lines
3.2 KiB
Java
package org.julianfamily.keepassgo;
|
|
|
|
import android.content.ContentProvider;
|
|
import android.content.ContentValues;
|
|
import android.database.Cursor;
|
|
import android.database.MatrixCursor;
|
|
import android.net.Uri;
|
|
import android.os.ParcelFileDescriptor;
|
|
import android.provider.OpenableColumns;
|
|
|
|
import java.io.File;
|
|
import java.io.FileNotFoundException;
|
|
|
|
public final class SharedVaultProvider extends ContentProvider {
|
|
private static final String AUTHORITY = "org.julianfamily.keepassgo.share";
|
|
|
|
@Override
|
|
public boolean onCreate() {
|
|
return true;
|
|
}
|
|
|
|
@Override
|
|
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
|
|
File file = resolveSharedFile(uri);
|
|
String[] columns = projection;
|
|
if (columns == null || columns.length == 0) {
|
|
columns = new String[]{OpenableColumns.DISPLAY_NAME, OpenableColumns.SIZE};
|
|
}
|
|
MatrixCursor cursor = new MatrixCursor(columns, 1);
|
|
Object[] row = new Object[columns.length];
|
|
for (int i = 0; i < columns.length; i++) {
|
|
switch (columns[i]) {
|
|
case OpenableColumns.DISPLAY_NAME:
|
|
row[i] = file.getName();
|
|
break;
|
|
case OpenableColumns.SIZE:
|
|
row[i] = file.length();
|
|
break;
|
|
default:
|
|
row[i] = null;
|
|
break;
|
|
}
|
|
}
|
|
cursor.addRow(row);
|
|
return cursor;
|
|
}
|
|
|
|
@Override
|
|
public String getType(Uri uri) {
|
|
return "application/x-keepass2";
|
|
}
|
|
|
|
@Override
|
|
public Uri insert(Uri uri, ContentValues values) {
|
|
throw new UnsupportedOperationException("insert is not supported");
|
|
}
|
|
|
|
@Override
|
|
public int delete(Uri uri, String selection, String[] selectionArgs) {
|
|
throw new UnsupportedOperationException("delete is not supported");
|
|
}
|
|
|
|
@Override
|
|
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
|
|
throw new UnsupportedOperationException("update is not supported");
|
|
}
|
|
|
|
@Override
|
|
public ParcelFileDescriptor openFile(Uri uri, String mode) throws FileNotFoundException {
|
|
File file = resolveSharedFile(uri);
|
|
return ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
|
|
}
|
|
|
|
static Uri uriForFile(String name) {
|
|
return new Uri.Builder()
|
|
.scheme("content")
|
|
.authority(AUTHORITY)
|
|
.appendPath(name)
|
|
.build();
|
|
}
|
|
|
|
private File resolveSharedFile(Uri uri) {
|
|
if (getContext() == null) {
|
|
throw new IllegalStateException("provider context is unavailable");
|
|
}
|
|
String name = sanitizeFilename(uri.getLastPathSegment());
|
|
return new File(AndroidShare.sharedDirectory(getContext()), name);
|
|
}
|
|
|
|
private static String sanitizeFilename(String name) {
|
|
if (name == null) {
|
|
return "shared-vault.kdbx";
|
|
}
|
|
String trimmed = name.trim();
|
|
if (trimmed.isEmpty()) {
|
|
return "shared-vault.kdbx";
|
|
}
|
|
return new File(trimmed).getName();
|
|
}
|
|
}
|