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117 lines
5.3 KiB
117 lines
5.3 KiB
// yacyNetwork.java
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// ----------------
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// (C) 2007 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 04.07.2007 on http://yacy.net
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//
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// This is a part of YaCy, a peer-to-peer based web search engine
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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// LICENSE
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package de.anomic.yacy;
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import java.util.LinkedHashMap;
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import net.yacy.cora.date.GenericFormatter;
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import net.yacy.cora.document.UTF8;
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import net.yacy.kelondro.order.Digest;
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import org.apache.http.entity.mime.content.ContentBody;
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import de.anomic.search.Switchboard;
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import de.anomic.search.SwitchboardConstants;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverSwitch;
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public class yacyNetwork {
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public static final boolean authentifyRequest(final serverObjects post, final serverSwitch env) {
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if (post == null || env == null) return false;
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// identify network
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final String unitName = post.get(SwitchboardConstants.NETWORK_NAME, yacySeed.DFLT_NETWORK_UNIT); // the network unit
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if (!unitName.equals(env.getConfig(SwitchboardConstants.NETWORK_NAME, yacySeed.DFLT_NETWORK_UNIT))) {
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return false;
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}
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// check authentication method
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final String authenticationControl = env.getConfig("network.unit.protocol.control", "uncontrolled");
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if (authenticationControl.equals("uncontrolled")) return true;
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final String authenticationMethod = env.getConfig("network.unit.protocol.request.authentication.method", "");
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if (authenticationMethod.length() == 0) {
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return false;
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}
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if (authenticationMethod.equals("salted-magic-sim")) {
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// authorize the peer using the md5-magic
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final String salt = post.get("key", "");
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final String iam = post.get("iam", "");
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final String magic = env.getConfig("network.unit.protocol.request.authentication.essentials", "");
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final String md5 = Digest.encodeMD5Hex(salt + iam + magic);
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return post.get("magicmd5", "").equals(md5);
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}
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// unknown authentication method
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return false;
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}
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public static final LinkedHashMap<String,ContentBody> basicRequestParts(final Switchboard sb, final String targetHash, final String salt) {
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// put in all the essentials for routing and network authentication
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// generate a session key
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final LinkedHashMap<String,ContentBody> parts = basicRequestParts(sb.peers.mySeed().hash, targetHash, Switchboard.getSwitchboard().getConfig(SwitchboardConstants.NETWORK_NAME, yacySeed.DFLT_NETWORK_UNIT));
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parts.put("key", UTF8.StringBody(salt));
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// authentication essentials
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final String authenticationControl = sb.getConfig("network.unit.protocol.control", "uncontrolled");
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final String authenticationMethod = sb.getConfig("network.unit.protocol.request.authentication.method", "");
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if ((authenticationControl.equals("controlled")) && (authenticationMethod.length() > 0)) {
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if (authenticationMethod.equals("salted-magic-sim")) {
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// generate an authentication essential using the salt, the iam-hash and the network magic
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final String magic = sb.getConfig("network.unit.protocol.request.authentication.essentials", "");
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final String md5 = Digest.encodeMD5Hex(salt + sb.peers.mySeed().hash + magic);
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parts.put("magicmd5", UTF8.StringBody(md5));
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}
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}
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return parts;
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}
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public static final LinkedHashMap<String,ContentBody> basicRequestParts(String myHash, String targetHash, String networkName) {
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// put in all the essentials for routing and network authentication
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// generate a session key
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final LinkedHashMap<String,ContentBody> parts = new LinkedHashMap<String,ContentBody>();
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// just standard identification essentials
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if (myHash != null) {
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parts.put("iam", UTF8.StringBody(myHash));
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if (targetHash != null) parts.put("youare", UTF8.StringBody(targetHash));
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// time information for synchronization
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// use our own formatter to prevent concurrency locks with other processes
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GenericFormatter my_SHORT_SECOND_FORMATTER = new GenericFormatter(GenericFormatter.FORMAT_SHORT_SECOND, GenericFormatter.time_second);
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parts.put("mytime", UTF8.StringBody(my_SHORT_SECOND_FORMATTER.format()));
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parts.put("myUTC", UTF8.StringBody(Long.toString(System.currentTimeMillis())));
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// network identification
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parts.put(SwitchboardConstants.NETWORK_NAME, UTF8.StringBody(networkName));
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}
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return parts;
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}
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}
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