Current File : //proc/309157/root/home/waritko/yacy/htroot/api/share.java
/**
* share
* Copyright 2016 by Michael Peter Christen, mc@yacy.net, Frankfurt a. M., Germany
* First released 24.02.2016 at http://yacy.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program in the file lgpl21.txt
* If not, see <http://www.gnu.org/licenses/>.
*/
import java.io.File;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import net.yacy.yacy;
import net.yacy.cora.document.encoding.UTF8;
import net.yacy.cora.order.Base64Order;
import net.yacy.cora.protocol.RequestHeader;
import net.yacy.cora.util.ConcurrentLog;
import net.yacy.search.index.Fulltext;
import net.yacy.server.serverObjects;
import net.yacy.server.serverSwitch;
public class share {
/**
* Servlet to share any kind of binary to this peer.
* That mean you can upload 'things'. While this is the generic view,
* it will operate in the beginning only for full solr export files.
* The servlet will decide if it wants that kind of data and if the sender is valid,
* i.e. if the sender is within the own network and known.
* Index dumps which are uploaded are placed to a specific folder
* where they can be downloaded again by peers.
* An optional operation is the immediate indexing of the shared index.
* @param header
* @param post
* @param env
* @return
*/
public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
final serverObjects prop = new serverObjects();
// display mode: this only helps to display a nice input form for test cases
int c = post == null ? 1 : post.getInt("c", 0);
if (c > 0) {
prop.put("mode", 0);
return prop;
}
// push mode: this does a document upload
prop.put("mode", 1);
prop.put("mode_success", 0);
// init display variable for mode=1
prop.put("mode_countsuccess", 0);
prop.put("mode_countfail", 0);
prop.put("mode_item", "");
if (post == null) return prop;
// check file name
String filename = post.get("data", "");
if (filename.isEmpty()) {
prop.put("mode_success_message", "file name is empty");
return prop;
}
if (!filename.startsWith(Fulltext.yacy_dump_prefix) || !filename.endsWith(".xml.gz")) {
prop.put("mode_success_message", "no index dump file (" + Fulltext.yacy_dump_prefix + "*.xml.gz)");
return prop;
}
// check data
String dataString = post.get("data$file", "");
if (dataString.length() == 0) return prop;
byte[] data;
if (filename.endsWith(".base64")) {
data = Base64Order.standardCoder.decode(dataString);
filename = filename.substring(0, filename.length() - 7);
} else {
data = UTF8.getBytes(dataString);
}
if (data == null || data.length == 0) return prop;
// modify the file name; ignore and replace the used transaction token
int ttp = filename.indexOf("_t");
if (ttp < 0) return prop;
if (filename.charAt(ttp + 3) != '.') return prop;
filename = filename.substring(0, ttp) + "_ts" + filename.substring(ttp + 3); // transaction token: 's' as 'shared'.
// process the data
File tmpFile = new File(yacy.shareDumpDefaultPath, filename + ".tmp");
File finalFile = new File(yacy.shareDumpDefaultPath, filename);
try {
Files.copy(new ByteArrayInputStream(data), tmpFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
tmpFile.renameTo(finalFile);
} catch (IOException e) {
ConcurrentLog.logException(e);
return prop;
}
prop.put("mode_success", 1);
return prop;
}
}
Mini Shell