mirror of
https://github.com/yacy/yacy_search_server.git
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d2ba1fd2ab
This change is inspired by the need to see a network connected to the index it creates in a indexing team. It is not possible to divide the network and the index. Therefore all control files for the network was moved to the network within the INDEX/<network-name> subfolder. The remaining YACYDB is superfluous and can be deleted. The yacyDB and yacyNews data structures are now part of plasmaWordIndex. Therefore all methods, using static access to yacySeedDB had to be rewritten. A special problem had been all the port forwarding methods which had been tightly mixed with seed construction. It was not possible to move the port forwarding functions to the place, meaning and usage of plasmaWordIndex. Therefore the port forwarding had been deleted (I guess nobody used it and it can be simulated by methods outside of YaCy). The mySeed.txt is automatically moved to the current network position. A new effect causes that every network will create a different local seed file, which is ok, since the seed identifies the peer only against the network (it is the purpose of the seed hash to give a peer a location within the DHT). No other functional change has been made. The next steps to enable network switcing are: - shift of crawler tables from PLASMADB into the network (crawls are also network-specific) - possibly shift of plasmaWordIndex code into yacy package (index management is network-specific) - servlet to switch networks git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4765 6c8d7289-2bf4-0310-a012-ef5d649a1542
235 lines
11 KiB
Java
235 lines
11 KiB
Java
// hello.java
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// -----------------------
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// part of the AnomicHTTPD caching proxy
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// (C) by Michael Peter Christen; mc@anomic.de
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004
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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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// 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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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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//
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// You must compile this file with
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// javac -classpath .:../../classes hello.java
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// if the shell's current path is HTROOT
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import java.net.InetAddress;
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import java.util.ConcurrentModificationException;
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import java.util.Iterator;
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import java.util.Map;
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import de.anomic.http.httpHeader;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.server.serverCore;
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import de.anomic.server.serverDomains;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverSwitch;
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import de.anomic.yacy.yacyClient;
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import de.anomic.yacy.yacyCore;
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import de.anomic.yacy.yacyNetwork;
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import de.anomic.yacy.yacySeed;
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import de.anomic.yacy.yacyVersion;
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public final class hello {
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public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch<?> env) throws InterruptedException {
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plasmaSwitchboard sb = (plasmaSwitchboard) env;
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serverObjects prop = new serverObjects();
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prop.put("message", "none");
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if ((post == null) || (env == null)) {
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prop.put("message", "no post or no enviroment");
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return prop;
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}
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if (!yacyNetwork.authentifyRequest(post, env)) {
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prop.put("message", "not in my network");
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return prop;
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}
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// final String iam = (String) post.get("iam", ""); // complete seed of the requesting peer
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// final String mytime = (String) post.get(MYTIME, ""); //
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final String key = post.get("key", ""); // transmission key for response
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final String seed = post.get("seed", "");
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final String countStr = post.get("count", "0");
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int count = 0;
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try {count = (countStr == null) ? 0 : Integer.parseInt(countStr);} catch (NumberFormatException e) {count = 0;}
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// final Date remoteTime = yacyCore.parseUniversalDate((String) post.get(MYTIME)); // read remote time
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if (seed.length() > yacySeed.maxsize) {
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yacyCore.log.logInfo("hello/server: rejected contacting seed; too large (" + seed.length() + " > " + yacySeed.maxsize + ")");
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prop.put("message", "your seed is too long (" + seed.length() + ")");
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return prop;
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}
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final yacySeed remoteSeed = yacySeed.genRemoteSeed(seed, key, false);
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// System.out.println("YACYHELLO: REMOTESEED=" + ((remoteSeed == null) ? "NULL" : remoteSeed.toString()));
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if ((remoteSeed == null) || (remoteSeed.hash == null)) {
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prop.put("message", "cannot parse your seed");
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return prop;
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}
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// final String properTest = remoteSeed.isProper();
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// The remote peer might not know its IP yet, so don't abort if the IP check fails
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// if ((properTest != null) && (! properTest.substring(0,1).equals("IP"))) { return null; }
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// we easily know the caller's IP:
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final String clientip = (String) header.get(httpHeader.CONNECTION_PROP_CLIENTIP, "<unknown>"); // read an artificial header addendum
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InetAddress ias = serverDomains.dnsResolve(clientip);
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if (ias == null) {
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prop.put("message", "cannot resolve your IP from your reported location " + clientip);
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return prop;
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}
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final String userAgent = (String) header.get(httpHeader.USER_AGENT, "<unknown>");
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final String reportedip = remoteSeed.get(yacySeed.IP, "");
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final String reportedPeerType = remoteSeed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_JUNIOR);
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final float clientversion = remoteSeed.getVersion();
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if ((sb.isRobinsonMode()) && (!sb.isPublicRobinson())) {
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// if we are a robinson cluster, answer only if this client is known by our network definition
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prop.put("message", "I am robinson, I do not answer");
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return prop;
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}
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int urls = -1;
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if (sb.clusterhashes != null) remoteSeed.setAlternativeAddress((String) sb.clusterhashes.get(remoteSeed.hash));
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// if the remote client has reported its own IP address and the client supports
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// the port forwarding feature (if client version >= 0.383) then we try to
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// connect to the reported IP address first
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if (reportedip.length() > 0 && !clientip.equals(reportedip) && clientversion >= yacyVersion.YACY_SUPPORTS_PORT_FORWARDING) {
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serverCore.checkInterruption();
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// try first the reportedip, since this may be a connect from a port-forwarding host
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prop.put("yourip", reportedip);
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remoteSeed.put(yacySeed.IP, reportedip);
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urls = yacyClient.queryUrlCount(remoteSeed);
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} else {
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prop.put("yourip", "unknown");
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}
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// if the previous attempt (using the reported ip address) was not successful, try the ip where
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// the request came from
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if (urls < 0) {
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boolean isNotLocal = true;
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// we are only allowed to connect to the client IP address if it's not our own address
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if (serverCore.useStaticIP) {
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isNotLocal = !ias.isSiteLocalAddress();
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}
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if (isNotLocal) {
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serverCore.checkInterruption();
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prop.put("yourip", clientip);
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remoteSeed.put(yacySeed.IP, clientip);
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urls = yacyClient.queryUrlCount(remoteSeed);
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}
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}
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// System.out.println("YACYHELLO: YOUR IP=" + clientip);
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// set lastseen value (we have seen that peer, it contacted us!)
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remoteSeed.setLastSeenUTC();
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// assign status
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if (urls >= 0) {
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if (remoteSeed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_SENIOR) == null) {
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prop.put(yacySeed.YOURTYPE, yacySeed.PEERTYPE_SENIOR);
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remoteSeed.put(yacySeed.PEERTYPE, yacySeed.PEERTYPE_SENIOR);
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} else if (remoteSeed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_PRINCIPAL).equals(yacySeed.PEERTYPE_PRINCIPAL)) {
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prop.put(yacySeed.YOURTYPE, yacySeed.PEERTYPE_PRINCIPAL);
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} else {
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prop.put(yacySeed.YOURTYPE, yacySeed.PEERTYPE_SENIOR);
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remoteSeed.put(yacySeed.PEERTYPE, yacySeed.PEERTYPE_SENIOR);
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}
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// connect the seed
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yacyCore.peerActions.peerArrival(remoteSeed, true);
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} else {
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prop.put(yacySeed.YOURTYPE, yacySeed.PEERTYPE_JUNIOR);
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yacyCore.peerActions.juniorConnects++; // update statistics
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remoteSeed.put(yacySeed.PEERTYPE, yacySeed.PEERTYPE_JUNIOR);
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yacyCore.log.logInfo("hello: responded remote junior peer '" + remoteSeed.getName() + "' from " + reportedip);
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// no connection here, instead store junior in connection cache
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if ((remoteSeed.hash != null) && (remoteSeed.isProper() == null)) {
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yacyCore.peerActions.peerPing(remoteSeed);
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}
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}
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yacyCore.peerActions.setUserAgent(clientip, userAgent);
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if (!((String)prop.get(yacySeed.YOURTYPE)).equals(reportedPeerType)) {
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yacyCore.log.logInfo("hello: changing remote peer '" + remoteSeed.getName() +
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"' [" + reportedip +
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"] peerType from '" + reportedPeerType +
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"' to '" + prop.get(yacySeed.YOURTYPE) + "'.");
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}
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serverCore.checkInterruption();
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final StringBuffer seeds = new StringBuffer(768);
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// attach some more seeds, as requested
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if ((sb.wordIndex.seedDB != null) && (sb.wordIndex.seedDB.sizeConnected() > 0)) {
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if (count > sb.wordIndex.seedDB.sizeConnected()) { count = sb.wordIndex.seedDB.sizeConnected(); }
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if (count > 100) { count = 100; }
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// latest seeds
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final Map<String, yacySeed> ySeeds = sb.wordIndex.seedDB.seedsByAge(true, count); // peerhash/yacySeed relation
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// attach also my own seed
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seeds.append("seed0=").append(sb.wordIndex.seedDB.mySeed().genSeedStr(key)).append(serverCore.CRLF_STRING);
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count = 1;
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// attach other seeds
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if (ySeeds != null) {
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seeds.ensureCapacity((ySeeds.size() + 1) * 768);
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Iterator<yacySeed> si = ySeeds.values().iterator();
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yacySeed s;
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while (si.hasNext()) {
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s = si.next();
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if ((s != null) && (s.isProper() == null)) try {
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seeds.append("seed").append(count).append('=').append(s.genSeedStr(key)).append(serverCore.CRLF_STRING);
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count++;
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} catch (ConcurrentModificationException e) {
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e.printStackTrace();
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}
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}
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}
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} else {
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// attach also my own seed
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seeds.append("seed0=").append(sb.wordIndex.seedDB.mySeed().genSeedStr(key)).append(serverCore.CRLF_STRING);
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}
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prop.put("seedlist", seeds.toString());
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// return rewrite properties
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prop.put("message", "ok " + seed.length());
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return prop;
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}
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}
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