Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2008 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.
 */

import android.os.Environment;

import android.util.Log;

import java.io.File;
import java.io.IOException;

public class Main {
    private static final String TAG = "Helpers";

    /**
     * Checks whether the filename looks legitimate
     */
    static boolean isFilenameValid(String filename, File downloadsDataDir) {
        final String[] whitelist;
        try {
            filename = new File(filename).getCanonicalPath();
            whitelist = new String[] { downloadsDataDir.getCanonicalPath(),
                    Environment.getDownloadCacheDirectory().getCanonicalPath(),
                    Environment.getExternalStorageDirectory().getCanonicalPath(), };
        } catch (IOException e) {
            Log.w(TAG, "Failed to resolve canonical path: " + e);
            return false;
        }

        for (String test : whitelist) {
            if (filename.startsWith(test)) {
                return true;
            }
        }

        return false;
    }
}