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path: root/tests/public_api_access/src/com/android/providers/downloads/public_api_access_tests/PublicApiAccessTest.java
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/*
 * Copyright (C) 2009 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.providers.downloads.public_api_access_tests;

import android.content.ContentResolver;
import android.content.ContentValues;
import android.provider.Downloads;
import android.test.AndroidTestCase;
import android.test.suitebuilder.annotation.MediumTest;

/**
 * DownloadProvider allows apps without permission ACCESS_DOWNLOAD_MANAGER to access it -- this is
 * how the public API works.  But such access is subject to strict constraints on what can be
 * inserted.  This test suite checks those constraints.
 */
@MediumTest
public class PublicApiAccessTest extends AndroidTestCase {
    private static final String[] DISALLOWED_COLUMNS = new String[] {
                    Downloads.Impl.COLUMN_COOKIE_DATA,
                    Downloads.Impl.COLUMN_REFERER,
                    Downloads.Impl.COLUMN_USER_AGENT,
                    Downloads.Impl.COLUMN_NO_INTEGRITY,
                    Downloads.Impl.COLUMN_NOTIFICATION_CLASS,
                    Downloads.Impl.COLUMN_NOTIFICATION_EXTRAS,
                    Downloads.Impl.COLUMN_OTHER_UID,
                    Downloads.Impl.COLUMN_APP_DATA,
                    Downloads.Impl.COLUMN_CONTROL,
                    Downloads.Impl.COLUMN_STATUS,
            };

    private ContentResolver mContentResolver;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        mContentResolver = getContext().getContentResolver();
    }

    @Override
    protected void tearDown() throws Exception {
        if (mContentResolver != null) {
            mContentResolver.delete(Downloads.CONTENT_URI, null, null);
        }
        super.tearDown();
    }

    public void testMinimalValidWrite() {
        mContentResolver.insert(Downloads.Impl.CONTENT_URI, buildValidValues());
    }

    public void testMaximalValidWrite() {
        ContentValues values = buildValidValues();
        values.put(Downloads.Impl.COLUMN_TITLE, "foo");
        values.put(Downloads.Impl.COLUMN_DESCRIPTION, "foo");
        values.put(Downloads.Impl.COLUMN_MIME_TYPE, "foo");
        values.put(Downloads.Impl.COLUMN_NOTIFICATION_PACKAGE, "foo");
        values.put(Downloads.Impl.COLUMN_ALLOWED_NETWORK_TYPES, 0);
        values.put(Downloads.Impl.COLUMN_ALLOW_ROAMING, true);
        mContentResolver.insert(Downloads.Impl.CONTENT_URI, values);
    }

    private ContentValues buildValidValues() {
        ContentValues values = new ContentValues();
        values.put(Downloads.Impl.COLUMN_URI, "foo");
        values.put(Downloads.Impl.COLUMN_DESTINATION,
                Downloads.Impl.DESTINATION_CACHE_PARTITION_PURGEABLE);
        values.put(Downloads.Impl.COLUMN_VISIBILITY, Downloads.Impl.VISIBILITY_VISIBLE);
        values.put(Downloads.Impl.COLUMN_IS_PUBLIC_API, true);
        return values;
    }

    public void testNoPublicApi() {
        ContentValues values = buildValidValues();
        values.remove(Downloads.Impl.COLUMN_IS_PUBLIC_API);
        testInvalidValues(values);
    }

    public void testInvalidDestination() {
        ContentValues values = buildValidValues();
        values.put(Downloads.Impl.COLUMN_DESTINATION, Downloads.Impl.DESTINATION_EXTERNAL);
        testInvalidValues(values);
        values.put(Downloads.Impl.COLUMN_DESTINATION, Downloads.Impl.DESTINATION_CACHE_PARTITION);
        testInvalidValues(values);
    }

    public void testInvalidVisibility() {
        ContentValues values = buildValidValues();
        values.put(Downloads.Impl.COLUMN_VISIBILITY,
                Downloads.Impl.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
        testInvalidValues(values);

        values.put(Downloads.Impl.COLUMN_VISIBILITY, Downloads.Impl.VISIBILITY_HIDDEN);
        testInvalidValues(values);

        values.remove(Downloads.Impl.COLUMN_VISIBILITY);
        testInvalidValues(values);
    }

    public void testDisallowedColumns() {
        for (String column : DISALLOWED_COLUMNS) {
            ContentValues values = buildValidValues();
            values.put(column, 1);
            testInvalidValues(values);
        }
    }

    public void testFileUriWithoutExternalPermission() {
        ContentValues values = buildValidValues();
        values.put(Downloads.Impl.COLUMN_DESTINATION, Downloads.Impl.DESTINATION_FILE_URI);
        values.put(Downloads.Impl.COLUMN_FILE_NAME_HINT, "file:///sdcard/foo");
        testInvalidValues(values);
    }

    private void testInvalidValues(ContentValues values) {
        try {
            mContentResolver.insert(Downloads.Impl.CONTENT_URI, values);
            fail("Didn't get SecurityException as expected");
        } catch (SecurityException exc) {
            // expected
        }
    }
}