diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider')
| -rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/TemporaryStorageProvider.java | 83 |
1 files changed, 71 insertions, 12 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/TemporaryStorageProvider.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/TemporaryStorageProvider.java index 2000a6525..b1f1a7d9e 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/TemporaryStorageProvider.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/TemporaryStorageProvider.java @@ -18,14 +18,24 @@ package org.sufficientlysecure.keychain.provider; + +import java.io.File; +import java.io.FileNotFoundException; +import java.io.IOException; +import java.util.UUID; + +import android.content.ClipDescription; import android.content.ContentProvider; import android.content.ContentValues; import android.content.Context; +import android.content.res.AssetFileDescriptor; import android.database.Cursor; import android.database.MatrixCursor; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; import android.net.Uri; +import android.os.Bundle; +import android.os.CancellationSignal; import android.os.ParcelFileDescriptor; import android.provider.OpenableColumns; @@ -33,11 +43,6 @@ import org.sufficientlysecure.keychain.Constants; import org.sufficientlysecure.keychain.util.DatabaseUtil; import org.sufficientlysecure.keychain.util.Log; -import java.io.File; -import java.io.FileNotFoundException; -import java.io.IOException; -import java.util.UUID; - public class TemporaryStorageProvider extends ContentProvider { private static final String DB_NAME = "tempstorage.db"; @@ -45,18 +50,37 @@ public class TemporaryStorageProvider extends ContentProvider { private static final String COLUMN_ID = "id"; private static final String COLUMN_NAME = "name"; private static final String COLUMN_TIME = "time"; + private static final String COLUMN_TYPE = "mimetype"; public static final String CONTENT_AUTHORITY = Constants.TEMPSTORAGE_AUTHORITY; private static final Uri BASE_URI = Uri.parse("content://" + CONTENT_AUTHORITY); - private static final int DB_VERSION = 2; + private static final int DB_VERSION = 3; private static File cacheDir; + public static Uri createFile(Context context, String targetName, String mimeType) { + ContentValues contentValues = new ContentValues(); + contentValues.put(COLUMN_NAME, targetName); + contentValues.put(COLUMN_TYPE, mimeType); + return context.getContentResolver().insert(BASE_URI, contentValues); + } + public static Uri createFile(Context context, String targetName) { ContentValues contentValues = new ContentValues(); contentValues.put(COLUMN_NAME, targetName); return context.getContentResolver().insert(BASE_URI, contentValues); } + public static Uri createFile(Context context) { + ContentValues contentValues = new ContentValues(); + return context.getContentResolver().insert(BASE_URI, contentValues); + } + + public static int setMimeType(Context context, Uri uri, String mimetype) { + ContentValues values = new ContentValues(); + values.put(COLUMN_TYPE, mimetype); + return context.getContentResolver().update(uri, values, null, null); + } + public static int cleanUp(Context context) { return context.getContentResolver().delete(BASE_URI, COLUMN_TIME + "< ?", new String[]{Long.toString(System.currentTimeMillis() - Constants.TEMPFILE_TTL)}); @@ -73,6 +97,7 @@ public class TemporaryStorageProvider extends ContentProvider { db.execSQL("CREATE TABLE IF NOT EXISTS " + TABLE_FILES + " (" + COLUMN_ID + " TEXT PRIMARY KEY, " + COLUMN_NAME + " TEXT, " + + COLUMN_TYPE + " TEXT, " + COLUMN_TIME + " INTEGER" + ");"); } @@ -89,6 +114,8 @@ public class TemporaryStorageProvider extends ContentProvider { COLUMN_NAME + " TEXT, " + COLUMN_TIME + " INTEGER" + ");"); + case 2: + db.execSQL("ALTER TABLE files ADD COLUMN " + COLUMN_TYPE + " TEXT"); } } } @@ -139,12 +166,33 @@ public class TemporaryStorageProvider extends ContentProvider { @Override public String getType(Uri uri) { - // Note: If we can find a files mime type, we can decrypt it to temp storage and open it after - // encryption. The mime type is needed, else UI really sucks and some apps break. + Cursor cursor = db.getReadableDatabase().query(TABLE_FILES, + new String[]{ COLUMN_TYPE }, COLUMN_ID + "=?", + new String[]{ uri.getLastPathSegment() }, null, null, null); + if (cursor != null) { + try { + if (cursor.moveToNext()) { + if (!cursor.isNull(0)) { + return cursor.getString(0); + } + } + } finally { + cursor.close(); + } + } return "*/*"; } @Override + public String[] getStreamTypes(Uri uri, String mimeTypeFilter) { + String type = getType(uri); + if (ClipDescription.compareMimeTypes(type, mimeTypeFilter)) { + return new String[] { type }; + } + return null; + } + + @Override public Uri insert(Uri uri, ContentValues values) { if (!values.containsKey(COLUMN_TIME)) { values.put(COLUMN_TIME, System.currentTimeMillis()); @@ -162,10 +210,13 @@ public class TemporaryStorageProvider extends ContentProvider { @Override public int delete(Uri uri, String selection, String[] selectionArgs) { - if (uri.getLastPathSegment() != null) { - selection = DatabaseUtil.concatenateWhere(selection, COLUMN_ID + "=?"); - selectionArgs = DatabaseUtil.appendSelectionArgs(selectionArgs, new String[]{uri.getLastPathSegment()}); + if (uri == null || uri.getLastPathSegment() == null) { + return 0; } + + selection = DatabaseUtil.concatenateWhere(selection, COLUMN_ID + "=?"); + selectionArgs = DatabaseUtil.appendSelectionArgs(selectionArgs, new String[]{uri.getLastPathSegment()}); + Cursor files = db.getReadableDatabase().query(TABLE_FILES, new String[]{COLUMN_ID}, selection, selectionArgs, null, null, null); if (files != null) { @@ -180,11 +231,19 @@ public class TemporaryStorageProvider extends ContentProvider { @Override public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { - throw new UnsupportedOperationException("Update not supported"); + if (values.size() != 1 || !values.containsKey(COLUMN_TYPE)) { + throw new UnsupportedOperationException("Update supported only for type field!"); + } + if (selection != null || selectionArgs != null) { + throw new UnsupportedOperationException("Update supported only for plain uri!"); + } + return db.getWritableDatabase().update(TABLE_FILES, values, + COLUMN_ID + " = ?", new String[]{ uri.getLastPathSegment() }); } @Override public ParcelFileDescriptor openFile(Uri uri, String mode) throws FileNotFoundException { return openFileHelper(uri, mode); } + } |