com.nuvolect.securesuite.webserver.connector.CmdExtract.java Source code

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Here is the source code for com.nuvolect.securesuite.webserver.connector.CmdExtract.java

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/*
 * Copyright (c) 2017. Nuvolect LLC
 *
 * This program is free software: you can redistribute it and/or modify it under the terms of the GNU
 * General Public License as published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * Contact legal@nuvolect.com for a less restrictive commercial license if you would like to use the
 * software without the GPLv3 restrictions.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program.  If not,
 * see <http://www.gnu.org/licenses/>.
 *
 */

package com.nuvolect.securesuite.webserver.connector;//

import android.support.annotation.NonNull;

import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.nuvolect.securesuite.util.LogUtil;
import com.nuvolect.securesuite.util.OmniFile;
import com.nuvolect.securesuite.util.OmniUtil;
import com.nuvolect.securesuite.util.OmniZip;
import com.nuvolect.securesuite.webserver.connector.base.ConnectorJsonCommand;

import org.apache.commons.io.FilenameUtils;

import java.io.InputStream;
import java.util.Map;

/**
 * extract
 *
 * Unpacks an archive.
 *
 * Arguments:
 *
 * cmd : extract
 * target : hash of the archive file
 * makedir : "1" to extract to new directory
 * Response:
 *
 * added : (Array) Information about File/Directory of extracted items
 *
 */
public class CmdExtract extends ConnectorJsonCommand {

    private static boolean DEBUG = LogUtil.DEBUG;

    @Override
    public InputStream go(@NonNull Map<String, String> params) {
        String url = params.get("url");
        OmniFile zipFile = new OmniFile(params.get("target"));
        String volumeId = zipFile.getVolumeId();
        OmniFile destinationFolder = zipFile.getParentFile();
        JsonArray added = new JsonArray();

        /**
         * Get the parent directory and inside it create a new directory
         */
        if (params.containsKey("makedir") && params.get("makedir").contentEquals("1")) {

            String dirName = FilenameUtils.getBaseName(zipFile.getName());
            if (dirName == null || dirName.isEmpty()) {
                dirName = "Archive";
            }

            /**
             * Create a new directory.
             * Avoid collision by adding ~ to make directory name unique.
             */
            String path = destinationFolder.getPath() + "/" + dirName;
            destinationFolder = new OmniFile(volumeId, path);
            destinationFolder = OmniUtil.makeUniqueName(destinationFolder);
            destinationFolder.mkdir();

            // Record addition of the new directory
            added.add(destinationFolder.getFileObject(url));
        }

        /**
         * Unzip files and directories and record additions to 'added'
         */
        OmniZip.unzipFile(zipFile, destinationFolder, added, url);

        JsonObject wrapper = new JsonObject();
        wrapper.add("added", added);

        if (DEBUG) {
            LogUtil.log(LogUtil.LogType.CMD_EXTRACT, "json result: " + wrapper.toString());
        }

        return getInputStream(wrapper);
    }
}