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1157 lines
53 KiB
1157 lines
53 KiB
// yacyClient.java
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// -------------------------------------
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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 notice 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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package de.anomic.yacy;
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import java.io.File;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.TreeMap;
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import de.anomic.http.httpRemoteProxyConfig;
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import de.anomic.http.httpc;
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import de.anomic.index.indexContainer;
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import de.anomic.index.indexRWIEntry;
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import de.anomic.index.indexRWIRowEntry;
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import de.anomic.index.indexURLEntry;
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import de.anomic.kelondro.kelondroBase64Order;
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import de.anomic.kelondro.kelondroBitfield;
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import de.anomic.plasma.plasmaCondenser;
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import de.anomic.plasma.plasmaSearchRankingProcess;
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import de.anomic.plasma.plasmaSearchRankingProfile;
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import de.anomic.plasma.plasmaSnippetCache;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.plasma.plasmaWordIndex;
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import de.anomic.plasma.urlPattern.plasmaURLPattern;
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import de.anomic.server.serverByteBuffer;
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import de.anomic.server.serverCodings;
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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.tools.crypt;
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import de.anomic.tools.nxTools;
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import de.anomic.xml.rssReader;
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public final class yacyClient {
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public static int publishMySeed(String address, String otherHash) {
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// this is called to enrich the seed information by
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// - own address (if peer is behind a nat/router)
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// - check peer type (virgin/junior/senior/principal)
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// to do this, we send a 'Hello' to another peer
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// this carries the following information:
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// 'iam' - own hash
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// 'youare' - remote hash, to verify that we are correct
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// 'key' - a session key that the remote peer may use to answer
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// and the own seed string
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// we expect the following information to be send back:
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// - 'yourip' the ip of the connection peer (we)
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// - 'yourtype' the type of this peer that the other peer checked by asking for a specific word
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// and the remote seed string
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// the number of new seeds are returned
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// one exceptional failure case is when we know the other's peers hash, the other peers responds correctly
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// but they appear to be another peer by comparisment of the other peer's hash
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// this works of course only if we know the other peer's hash.
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HashMap<String, String> result = null;
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final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), null);
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for (int retry = 0; retry < 3; retry++) try {
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// generate request
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post.put("count", "20");
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post.put("seed", yacyCore.seedDB.mySeed().genSeedStr(post.get("key", "")));
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yacyCore.log.logFine("yacyClient.publishMySeed thread '" + Thread.currentThread().getName() + "' contacting peer at " + address);
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// send request
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result = nxTools.table(
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httpc.wput(new yacyURL("http://" + address + "/yacy/hello.html", null),
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yacySeed.b64Hash2hexHash(otherHash) + ".yacyh",
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12000,
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null,
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null,
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proxyConfig(),
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post,
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null
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), "UTF-8"
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);
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break;
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} catch (Exception e) {
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if (Thread.currentThread().isInterrupted()) {
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yacyCore.log.logFine("yacyClient.publishMySeed thread '" + Thread.currentThread().getName() + "' interrupted.");
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return -1;
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} else {
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yacyCore.log.logFine("yacyClient.publishMySeed thread '" + Thread.currentThread().getName() + "' exception: " + e.getMessage() + "; retry = " + retry); // here VERY OFTEN a 'Connection reset' appears. What is the cause?
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// try again (go into loop)
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}
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result = null;
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}
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if (result == null || result.size() < 3) {
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yacyCore.log.logFine("yacyClient.publishMySeed result error: " +
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((result == null) ? "result null" : ("result=" + result.toString())));
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return -1;
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}
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// check consistency with expectation
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yacySeed otherPeer = null;
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float otherPeerVersion = 0;
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String seed;
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if ((otherHash != null) &&
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(otherHash.length() > 0) &&
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((seed = (String) result.get("seed0")) != null)) {
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if (seed.length() > yacySeed.maxsize) {
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yacyCore.log.logInfo("hello/client 0: rejected contacting seed; too large (" + seed.length() + " > " + yacySeed.maxsize + ")");
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} else {
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otherPeer = yacySeed.genRemoteSeed(seed, post.get("key", ""), true);
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if (otherPeer == null || !otherPeer.hash.equals(otherHash)) {
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yacyCore.log.logFine("yacyClient.publishMySeed: consistency error: other peer '" + ((otherPeer==null)?"unknown":otherPeer.getName()) + "' wrong");
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return -1; // no success
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}
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otherPeerVersion = otherPeer.getVersion();
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}
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}
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// set my own seed according to new information
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// we overwrite our own IP number only, if we do not portForwarding
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if (serverCore.portForwardingEnabled || serverCore.useStaticIP) {
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yacyCore.seedDB.mySeed().put(yacySeed.IP, serverDomains.myPublicIP());
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} else {
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yacyCore.seedDB.mySeed().put(yacySeed.IP, (String) result.get("yourip"));
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}
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/* If we have port forwarding enabled but the other peer uses a too old yacy version
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* we can ignore the seed-type that was reported by the peer.
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*
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* Otherwise we have to change our seed-type
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*
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* @see serverCore#portForwardingEnabled
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*/
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if (!serverCore.portForwardingEnabled || otherPeerVersion >= yacyVersion.YACY_SUPPORTS_PORT_FORWARDING) {
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String mytype = (String) result.get(yacySeed.YOURTYPE);
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if (mytype == null) { mytype = ""; }
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yacyAccessible accessible = new yacyAccessible();
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if (mytype.equals(yacySeed.PEERTYPE_SENIOR)||mytype.equals(yacySeed.PEERTYPE_PRINCIPAL)) {
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accessible.IWasAccessed = true;
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if (yacyCore.seedDB.mySeed().isPrincipal()) {
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mytype = yacySeed.PEERTYPE_PRINCIPAL;
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}
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} else {
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accessible.IWasAccessed = false;
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}
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accessible.lastUpdated = System.currentTimeMillis();
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yacyCore.amIAccessibleDB.put(otherHash, accessible);
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/*
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* If we were reported as junior we have to check if your port forwarding channel is broken
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* If this is true we try to reconnect the sch channel to the remote server now.
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*/
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if (mytype.equalsIgnoreCase(yacySeed.PEERTYPE_JUNIOR)) {
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yacyCore.log.logInfo("yacyClient.publishMySeed: Peer '" + ((otherPeer==null)?"unknown":otherPeer.getName()) + "' reported us as junior.");
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if (serverCore.portForwardingEnabled) {
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if (!Thread.currentThread().isInterrupted() &&
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serverCore.portForwarding != null &&
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!serverCore.portForwarding.isConnected()
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) {
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yacyCore.log.logWarning("yacyClient.publishMySeed: Broken portForwarding channel detected. Trying to reconnect ...");
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try {
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serverCore.portForwarding.reconnect();
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} catch (IOException e) {
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yacyCore.log.logWarning("yacyClient.publishMySeed: Unable to reconnect to port forwarding host.");
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}
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}
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}
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} else if ((mytype.equalsIgnoreCase(yacySeed.PEERTYPE_SENIOR)) ||
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(mytype.equalsIgnoreCase(yacySeed.PEERTYPE_PRINCIPAL))) {
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yacyCore.log.logFine("yacyClient.publishMySeed: Peer '" + ((otherPeer==null)?"unknown":otherPeer.getName()) + "' reported us as " + mytype + ", accepted other peer.");
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} else {
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// wrong type report
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yacyCore.log.logFine("yacyClient.publishMySeed: Peer '" + ((otherPeer==null)?"unknown":otherPeer.getName()) + "' reported us as " + mytype + ", rejecting other peer.");
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return -1;
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}
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if (yacyCore.seedDB.mySeed().orVirgin().equals(yacySeed.PEERTYPE_VIRGIN))
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yacyCore.seedDB.mySeed().put(yacySeed.PEERTYPE, mytype);
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}
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final String error = yacyCore.seedDB.mySeed().isProper();
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if (error != null) {
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yacyCore.log.logSevere("yacyClient.publishMySeed mySeed error - not proper: " + error);
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return -1;
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}
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//final Date remoteTime = yacyCore.parseUniversalDate((String) result.get(yacySeed.MYTIME)); // read remote time
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// read the seeds that the peer returned and integrate them into own database
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int i = 0;
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int count = 0;
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String seedStr;
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while ((seedStr = (String) result.get("seed" + i++)) != null) {
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// integrate new seed into own database
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// the first seed, "seed0" is the seed of the responding peer
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if (seedStr.length() > yacySeed.maxsize) {
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yacyCore.log.logInfo("hello/client: rejected contacting seed; too large (" + seedStr.length() + " > " + yacySeed.maxsize + ")");
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} else {
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//System.out.println("DEBUG yacyClient.publishMySeed seedStr = " + seedStr);
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yacySeed remoteSeed = yacySeed.genRemoteSeed(seedStr, post.get("key", ""), true);
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if (remoteSeed == null) {
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yacyCore.log.logWarning("hello/client: bad seed string from peer " + otherHash + ", address = " + address + ", count = " + (i-1) + " seedStr = " + seedStr);
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} else {
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if (yacyCore.peerActions.peerArrival(remoteSeed, (i == 1))) count++;
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}
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}
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}
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return count;
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}
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public static yacySeed querySeed(yacySeed target, String seedHash) {
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// prepare request
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final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), target.hash);
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post.put("object", "seed");
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post.put("env", seedHash);
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// send request
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try {
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final HashMap<String, String> result = nxTools.table(
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httpc.wput(new yacyURL("http://" + target.getClusterAddress() + "/yacy/query.html", null),
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target.getHexHash() + ".yacyh",
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10000,
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null,
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null,
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proxyConfig(),
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post,
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null
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), "UTF-8"
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);
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if (result == null || result.size() == 0) { return null; }
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target.setFlagDirectConnect(true);
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target.setLastSeenUTC();
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//final Date remoteTime = yacyCore.parseUniversalDate((String) result.get(yacySeed.MYTIME)); // read remote time
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return yacySeed.genRemoteSeed((String) result.get("response"), post.get("key", ""), true);
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} catch (Exception e) {
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yacyCore.log.logSevere("yacyClient.querySeed error:" + e.getMessage());
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return null;
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}
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}
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public static int queryRWICount(yacySeed target, String wordHash) {
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// prepare request
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final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), target.hash);
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post.put("object", "rwicount");
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post.put("ttl", "0");
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post.put("env", wordHash);
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// send request
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try {
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final HashMap<String, String> result = nxTools.table(
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httpc.wput(new yacyURL("http://" + target.getClusterAddress() + "/yacy/query.html", null),
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target.getHexHash() + ".yacyh",
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10000,
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null,
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null,
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proxyConfig(),
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post,
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null
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), "UTF-8"
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);
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if (result == null || result.size() == 0) { return -1; }
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final String resp = (String) result.get("response");
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if (resp == null) {
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return -1;
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} else try {
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target.setFlagDirectConnect(true);
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target.setLastSeenUTC();
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return Integer.parseInt(resp);
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} catch (NumberFormatException e) {
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return -1;
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}
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} catch (Exception e) {
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yacyCore.log.logSevere("yacyClient.queryRWICount error:" + e.getMessage());
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return -1;
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}
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}
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public static int queryUrlCount(yacySeed target) {
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if (target == null) { return -1; }
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if (yacyCore.seedDB.mySeed() == null) return -1;
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// prepare request
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final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), target.hash);
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post.put("object", "lurlcount");
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post.put("ttl", "0");
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post.put("env", "");
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// send request
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try {
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final HashMap<String, String> result = nxTools.table(
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httpc.wput(new yacyURL("http://" + target.getClusterAddress() + "/yacy/query.html", null),
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target.getHexHash() + ".yacyh",
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10000,
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null,
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null,
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proxyConfig(),
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post,
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null
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), "UTF-8"
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);
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if ((result == null) || (result.size() == 0)) return -1;
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final String resp = (String) result.get("response");
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if (resp == null) {
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return -1;
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} else try {
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target.setFlagDirectConnect(true);
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target.setLastSeenUTC();
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return Integer.parseInt(resp);
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} catch (NumberFormatException e) {
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return -1;
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}
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} catch (IOException e) {
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yacyCore.log.logSevere("yacyClient.queryUrlCount error asking peer '" + target.getName() + "':" + e.toString());
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return -1;
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}
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}
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public static rssReader queryRemoteCrawlURLs(yacySeed target, int count) {
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// returns a list of
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if (target == null) { return null; }
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if (yacyCore.seedDB.mySeed() == null) return null;
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// prepare request
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final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), target.hash);
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post.put("call", "remotecrawl");
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post.put("count", count);
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// send request
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try {
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final byte[] result =
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httpc.wput(new yacyURL("http://" + target.getClusterAddress() + "/yacy/urls.xml", null),
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target.getHexHash() + ".yacyh",
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60000, /* a long time-out is needed */
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null,
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null,
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proxyConfig(),
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post,
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null
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);
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rssReader reader = rssReader.parse(result);
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if (reader == null) {
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// case where the rss reader does not understand the content
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yacyCore.log.logWarning("yacyClient.queryRemoteCrawlURLs failed asking peer '" + target.getName() + "': probably bad response from remote peer");
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System.out.println("***DEBUG*** rss input = " + new String(result));
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target.put(yacySeed.RCOUNT, "0");
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yacyCore.seedDB.update(target.hash, target); // overwrite number of remote-available number to avoid that this peer is called again (until update is done by peer ping)
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//e.printStackTrace();
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return null;
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}
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return reader;
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} catch (IOException e) {
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yacyCore.log.logSevere("yacyClient.queryRemoteCrawlURLs error asking peer '" + target.getName() + "':" + e.toString());
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return null;
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}
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}
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public static String[] search(
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String wordhashes,
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String excludehashes,
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String urlhashes,
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String prefer,
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String filter,
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int count,
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int maxDistance,
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boolean global,
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int partitions,
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yacySeed target,
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plasmaWordIndex wordIndex,
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plasmaSearchRankingProcess containerCache,
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Map<String, TreeMap<String, String>> abstractCache,
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plasmaURLPattern blacklist,
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plasmaSearchRankingProfile rankingProfile,
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kelondroBitfield constraint
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) {
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// send a search request to peer with remote Hash
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// this mainly converts the words into word hashes
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// INPUT:
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// iam : complete seed of the requesting peer
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// youare : seed hash of the target peer, used for testing network stability
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// key : transmission key for response
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// search : a list of search words
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// hsearch : a string of word hashes
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// fwdep : forward depth. if "0" then peer may NOT ask another peer for more results
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// fwden : forward deny, a list of seed hashes. They may NOT be target of forward hopping
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// count : maximum number of wanted results
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// global : if "true", then result may consist of answers from other peers
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// partitions : number of remote peers that are asked (for evaluation of QPM)
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// duetime : maximum time that a peer should spent to create a result
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|
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// prepare request
|
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final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), target.hash);
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post.put("myseed", yacyCore.seedDB.mySeed().genSeedStr(post.get("key", "")));
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post.put("count", Math.max(10, count));
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post.put("resource", ((global) ? "global" : "local"));
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post.put("partitions", partitions);
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post.put("query", wordhashes);
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post.put("exclude", excludehashes);
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post.put("duetime", 1000);
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post.put("urls", urlhashes);
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post.put("prefer", prefer);
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post.put("filter", filter);
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post.put("ttl", "0");
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post.put("maxdist", maxDistance);
|
|
post.put("profile", crypt.simpleEncode(rankingProfile.toExternalString()));
|
|
post.put("constraint", (constraint == null) ? "" : constraint.exportB64());
|
|
if (abstractCache != null) post.put("abstracts", "auto");
|
|
final long timestamp = System.currentTimeMillis();
|
|
|
|
// send request
|
|
HashMap<String, String> result = null;
|
|
try {
|
|
result = nxTools.table(
|
|
httpc.wput(new yacyURL("http://" + target.getClusterAddress() + "/yacy/search.html", null),
|
|
target.getHexHash() + ".yacyh",
|
|
60000,
|
|
null,
|
|
null,
|
|
proxyConfig(),
|
|
post,
|
|
null
|
|
), "UTF-8"
|
|
);
|
|
} catch (IOException e) {
|
|
yacyCore.log.logFine("SEARCH failed FROM " + target.hash + ":" + target.getName() + " (" + e.getMessage() + "), score=" + target.selectscore + ", DHTdist=" + yacyDHTAction.dhtDistance(target.hash, wordhashes.substring(0, 12)));
|
|
yacyCore.peerActions.peerDeparture(target, "search request to peer created io exception: " + e.getMessage());
|
|
return null;
|
|
}
|
|
|
|
if ((result == null) || (result.size() == 0)) {
|
|
yacyCore.log.logFine("SEARCH failed FROM "
|
|
+ target.hash
|
|
+ ":"
|
|
+ target.getName()
|
|
+ " (zero response), score="
|
|
+ target.selectscore
|
|
+ ", DHTdist="
|
|
+ yacyDHTAction.dhtDistance(target.hash, wordhashes
|
|
.substring(0, 12)));
|
|
return null;
|
|
}
|
|
|
|
// compute all computation times
|
|
final long totalrequesttime = System.currentTimeMillis() - timestamp;
|
|
|
|
// OUTPUT:
|
|
// version : application version of responder
|
|
// uptime : uptime in seconds of responder
|
|
// total : number of total available LURL's for this search
|
|
// count : number of returned LURL's for this search
|
|
// resource<n> : LURL of search
|
|
// fwhop : hops (depth) of forwards that had been performed to construct this result
|
|
// fwsrc : peers that helped to construct this result
|
|
// fwrec : peers that would have helped to construct this result (recommendations)
|
|
// searchtime : time that the peer actually spent to create the result
|
|
// references : references (search hints) that was calculated during search
|
|
|
|
// now create a plasmaIndex out of this result
|
|
// System.out.println("yacyClient: " + ((urlhashes.length() == 0) ? "primary" : "secondary")+ " search result = " + result.toString()); // debug
|
|
|
|
int results = 0, joincount = 0;
|
|
try {
|
|
results = Integer.parseInt(result.get("count"));
|
|
joincount = Integer.parseInt(result.get("joincount"));
|
|
} catch (NumberFormatException e) {
|
|
yacyCore.log.logFine("SEARCH failed FROM " + target.hash + ":" + target.getName() + ", wrong output format");
|
|
yacyCore.peerActions.peerDeparture(target, "search request to peer created number format exception");
|
|
return null;
|
|
}
|
|
// System.out.println("***result count " + results);
|
|
|
|
// create containers
|
|
final int words = wordhashes.length() / yacySeedDB.commonHashLength;
|
|
indexContainer[] container = new indexContainer[words];
|
|
for (int i = 0; i < words; i++) {
|
|
container[i] = plasmaWordIndex.emptyContainer(wordhashes.substring(i * yacySeedDB.commonHashLength, (i + 1) * yacySeedDB.commonHashLength), count);
|
|
}
|
|
|
|
// insert results to containers
|
|
indexURLEntry urlEntry;
|
|
String[] urls = new String[results];
|
|
for (int n = 0; n < results; n++) {
|
|
// get one single search result
|
|
urlEntry = wordIndex.loadedURL.newEntry((String) result.get("resource" + n));
|
|
if (urlEntry == null) continue;
|
|
assert (urlEntry.hash().length() == 12) : "urlEntry.hash() = " + urlEntry.hash();
|
|
if (urlEntry.hash().length() != 12) continue; // bad url hash
|
|
indexURLEntry.Components comp = urlEntry.comp();
|
|
if (blacklist.isListed(plasmaURLPattern.BLACKLIST_SEARCH, comp.url())) {
|
|
yacyCore.log.logInfo("remote search (client): filtered blacklisted url " + comp.url() + " from peer " + target.getName());
|
|
continue; // block with backlist
|
|
}
|
|
|
|
if (!plasmaSwitchboard.getSwitchboard().acceptURL(comp.url())) {
|
|
yacyCore.log.logInfo("remote search (client): rejected url outside of our domain " + comp.url() + " from peer " + target.getName());
|
|
continue; // reject url outside of our domain
|
|
}
|
|
|
|
// save the url entry
|
|
indexRWIEntry entry;
|
|
if (urlEntry.word() == null) {
|
|
yacyCore.log.logWarning("remote search (client): no word attached from peer " + target.getName() + ", version " + target.getVersion());
|
|
continue; // no word attached
|
|
}
|
|
|
|
// the search-result-url transports all the attributes of word indexes
|
|
entry = urlEntry.word();
|
|
if (!(entry.urlHash().equals(urlEntry.hash()))) {
|
|
yacyCore.log.logInfo("remote search (client): url-hash " + urlEntry.hash() + " does not belong to word-attached-hash " + entry.urlHash() + "; url = " + comp.url() + " from peer " + target.getName());
|
|
continue; // spammed
|
|
}
|
|
|
|
// passed all checks, store url
|
|
try {
|
|
wordIndex.loadedURL.store(urlEntry);
|
|
wordIndex.loadedURL.stack(urlEntry, yacyCore.seedDB.mySeed().hash, target.hash, 2);
|
|
} catch (IOException e) {
|
|
yacyCore.log.logSevere("could not store search result", e);
|
|
continue; // db-error
|
|
}
|
|
|
|
if (urlEntry.snippet() != null) {
|
|
// we don't store the snippets along the url entry,
|
|
// because they are search-specific.
|
|
// instead, they are placed in a snipped-search cache.
|
|
// System.out.println("--- RECEIVED SNIPPET '" + link.snippet() + "'");
|
|
plasmaSnippetCache.storeToCache(wordhashes, urlEntry.hash(), urlEntry.snippet());
|
|
}
|
|
|
|
// add the url entry to the word indexes
|
|
for (int m = 0; m < words; m++) {
|
|
container[m].add(entry, System.currentTimeMillis());
|
|
}
|
|
|
|
// store url hash for statistics
|
|
urls[n] = urlEntry.hash();
|
|
}
|
|
|
|
// store remote result to local result container
|
|
synchronized (containerCache) {
|
|
// insert one container into the search result buffer
|
|
containerCache.insertRanked(container[0], false, joincount); // one is enough
|
|
|
|
// integrate remote topwords
|
|
String references = (String) result.get("references");
|
|
yacyCore.log.logInfo("remote search (client): peer " + target.getName() + " sent references " + references);
|
|
if (references != null) {
|
|
// add references twice, so they can be countet (must have at least 2 entries)
|
|
containerCache.addReferences(references.split(","));
|
|
containerCache.addReferences(references.split(","));
|
|
}
|
|
}
|
|
|
|
// read index abstract
|
|
if (abstractCache != null) {
|
|
Iterator<Map.Entry<String, String>> i = result.entrySet().iterator();
|
|
Map.Entry<String, String> entry;
|
|
TreeMap<String, String> singleAbstract;
|
|
String wordhash;
|
|
serverByteBuffer ci;
|
|
while (i.hasNext()) {
|
|
entry = i.next();
|
|
if (entry.getKey().startsWith("indexabstract.")) {
|
|
wordhash = entry.getKey().substring(14);
|
|
synchronized (abstractCache) {
|
|
singleAbstract = (TreeMap<String, String>) abstractCache.get(wordhash); // a mapping from url-hashes to a string of peer-hashes
|
|
if (singleAbstract == null) singleAbstract = new TreeMap<String, String>();
|
|
ci = new serverByteBuffer(entry.getValue().getBytes());
|
|
//System.out.println("DEBUG-ABSTRACTFETCH: for word hash " + wordhash + " received " + ci.toString());
|
|
indexContainer.decompressIndex(singleAbstract, ci, target.hash);
|
|
abstractCache.put(wordhash, singleAbstract);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// insert the containers to the index
|
|
for (int m = 0; m < words; m++) {
|
|
wordIndex.addEntries(container[m], true);
|
|
}
|
|
|
|
// generate statistics
|
|
long searchtime;
|
|
try {
|
|
searchtime = Integer.parseInt((String) result.get("searchtime"));
|
|
} catch (NumberFormatException e) {
|
|
searchtime = totalrequesttime;
|
|
}
|
|
yacyCore.log.logFine("SEARCH "
|
|
+ results
|
|
+ " URLS FROM "
|
|
+ target.hash
|
|
+ ":"
|
|
+ target.getName()
|
|
+ ", score="
|
|
+ target.selectscore
|
|
+ ", DHTdist="
|
|
+ ((wordhashes.length() < 12) ? "void" : Double
|
|
.toString(yacyDHTAction.dhtDistance(target.hash,
|
|
wordhashes.substring(0, 12))))
|
|
+ ", searchtime=" + searchtime + ", netdelay="
|
|
+ (totalrequesttime - searchtime) + ", references="
|
|
+ result.get("references"));
|
|
return urls;
|
|
}
|
|
|
|
public static HashMap<String, String> permissionMessage(String targetHash) {
|
|
// ask for allowed message size and attachement size
|
|
// if this replies null, the peer does not answer
|
|
if (yacyCore.seedDB == null || yacyCore.seedDB.mySeed() == null) { return null; }
|
|
|
|
// prepare request
|
|
final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), targetHash);
|
|
post.put("process", "permission");
|
|
|
|
// send request
|
|
try {
|
|
final HashMap<String, String> result = nxTools.table(
|
|
httpc.wput(new yacyURL("http://" + targetAddress(targetHash) + "/yacy/message.html", null),
|
|
yacySeed.b64Hash2hexHash(targetHash)+ ".yacyh",
|
|
8000,
|
|
null,
|
|
null,
|
|
proxyConfig(),
|
|
post,
|
|
null
|
|
), "UTF-8"
|
|
);
|
|
return result;
|
|
} catch (Exception e) {
|
|
// most probably a network time-out exception
|
|
yacyCore.log.logSevere("yacyClient.permissionMessage error:" + e.getMessage());
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static HashMap<String, String> postMessage(String targetHash, String subject, byte[] message) {
|
|
// this post a message to the remote message board
|
|
|
|
// prepare request
|
|
final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), targetHash);
|
|
post.put("process", "post");
|
|
post.put("myseed", yacyCore.seedDB.mySeed().genSeedStr(post.get("key", "")));
|
|
post.put("subject", subject);
|
|
try {
|
|
post.put("message", new String(message, "UTF-8"));
|
|
} catch (UnsupportedEncodingException e) {
|
|
post.put("message", new String(message));
|
|
}
|
|
|
|
// send request
|
|
try {
|
|
final HashMap<String, String> result = nxTools.table(
|
|
httpc.wput(new yacyURL("http://" + targetAddress(targetHash) + "/yacy/message.html", null),
|
|
yacySeed.b64Hash2hexHash(targetHash)+ ".yacyh",
|
|
20000,
|
|
null,
|
|
null,
|
|
proxyConfig(),
|
|
post,
|
|
null
|
|
), "UTF-8"
|
|
);
|
|
return result;
|
|
} catch (Exception e) {
|
|
yacyCore.log.logSevere("yacyClient.postMessage error:" + e.getMessage());
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static String targetAddress(String targetHash) {
|
|
// find target address
|
|
String address;
|
|
if (targetHash.equals(yacyCore.seedDB.mySeed().hash)) {
|
|
address = yacyCore.seedDB.mySeed().getClusterAddress();
|
|
} else {
|
|
final yacySeed targetSeed = yacyCore.seedDB.getConnected(targetHash);
|
|
if (targetSeed == null) { return null; }
|
|
address = targetSeed.getClusterAddress();
|
|
}
|
|
if (address == null) address = "localhost:8080";
|
|
return address;
|
|
}
|
|
|
|
public static HashMap<String, String> transferPermission(String targetAddress, long filesize, String filename) {
|
|
|
|
// prepare request
|
|
final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), null);
|
|
post.put("process", "permission");
|
|
post.put("purpose", "crcon");
|
|
post.put("filename", filename);
|
|
post.put("filesize", Long.toString(filesize));
|
|
post.put("can-send-protocol", "http");
|
|
|
|
// send request
|
|
try {
|
|
final yacyURL url = new yacyURL("http://" + targetAddress + "/yacy/transfer.html", null);
|
|
final HashMap<String, String> result = nxTools.table(
|
|
httpc.wput(url,
|
|
url.getHost(),
|
|
6000,
|
|
null,
|
|
null,
|
|
proxyConfig(),
|
|
post,
|
|
null
|
|
), "UTF-8"
|
|
);
|
|
return result;
|
|
} catch (Exception e) {
|
|
// most probably a network time-out exception
|
|
yacyCore.log.logSevere("yacyClient.permissionTransfer error:" + e.getMessage());
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static HashMap<String, String> transferStore(String targetAddress, String access, String filename, byte[] file) {
|
|
|
|
// prepare request
|
|
final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), null);
|
|
post.put("process", "store");
|
|
post.put("purpose", "crcon");
|
|
post.put("filename", filename);
|
|
post.put("filesize", Long.toString(file.length));
|
|
post.put("md5", serverCodings.encodeMD5Hex(file));
|
|
post.put("access", access);
|
|
HashMap<String, byte[]> files = new HashMap<String, byte[]>();
|
|
files.put("filename", file);
|
|
|
|
// send request
|
|
try {
|
|
final yacyURL url = new yacyURL("http://" + targetAddress + "/yacy/transfer.html", null);
|
|
final HashMap<String, String> result = nxTools.table(
|
|
httpc.wput(url,
|
|
url.getHost(),
|
|
20000,
|
|
null,
|
|
null,
|
|
proxyConfig(),
|
|
post,
|
|
files
|
|
), "UTF-8"
|
|
);
|
|
return result;
|
|
} catch (Exception e) {
|
|
yacyCore.log.logSevere("yacyClient.postMessage error:" + e.getMessage());
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static String transfer(String targetAddress, String filename, byte[] file) {
|
|
HashMap<String, String> phase1 = transferPermission(targetAddress, file.length, filename);
|
|
if (phase1 == null) return "no connection to remote address " + targetAddress + "; phase 1";
|
|
String access = (String) phase1.get("access");
|
|
String nextaddress = (String) phase1.get("address");
|
|
String protocol = (String) phase1.get("protocol");
|
|
//String path = (String) phase1.get("path");
|
|
//String maxsize = (String) phase1.get("maxsize");
|
|
String response = (String) phase1.get("response");
|
|
if ((response == null) || (protocol == null) || (access == null)) return "wrong return values from other peer; phase 1";
|
|
if (!(response.equals("ok"))) return "remote peer rejected transfer: " + response;
|
|
String accesscode = serverCodings.encodeMD5Hex(kelondroBase64Order.standardCoder.encodeString(access));
|
|
if (protocol.equals("http")) {
|
|
HashMap<String, String> phase2 = transferStore(nextaddress, accesscode, filename, file);
|
|
if (phase2 == null) return "no connection to remote address " + targetAddress + "; phase 2";
|
|
response = (String) phase2.get("response");
|
|
if (response == null) return "wrong return values from other peer; phase 2";
|
|
if (!(response.equals("ok"))) {
|
|
return "remote peer failed with transfer: " + response;
|
|
}
|
|
return null;
|
|
}
|
|
return "wrong protocol: " + protocol;
|
|
}
|
|
|
|
public static HashMap<String, String> crawlReceipt(yacySeed target, String process, String result, String reason, indexURLEntry entry, String wordhashes) {
|
|
assert (target != null);
|
|
assert (yacyCore.seedDB.mySeed() != null);
|
|
assert (yacyCore.seedDB.mySeed() != target);
|
|
|
|
/*
|
|
the result can have one of the following values:
|
|
negative cases, no retry
|
|
unavailable - the resource is not avaiable (a broken link); not found or interrupted
|
|
robot - a robot-file has denied to crawl that resource
|
|
|
|
negative cases, retry possible
|
|
rejected - the peer has rejected to load the resource
|
|
dequeue - peer too busy - rejected to crawl
|
|
|
|
positive cases with crawling
|
|
fill - the resource was loaded and processed
|
|
update - the resource was already in database but re-loaded and processed
|
|
|
|
positive cases without crawling
|
|
known - the resource is already in database, believed to be fresh and not reloaded
|
|
stale - the resource was reloaded but not processed because source had no changes
|
|
|
|
*/
|
|
|
|
// prepare request
|
|
final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), target.hash);
|
|
post.put("process", process);
|
|
post.put("urlhash", ((entry == null) ? "" : entry.hash()));
|
|
post.put("result", result);
|
|
post.put("reason", reason);
|
|
post.put("wordh", wordhashes);
|
|
post.put("lurlEntry", ((entry == null) ? "" : crypt.simpleEncode(entry.toString(), post.get("key", ""))));
|
|
|
|
// determining target address
|
|
final String address = target.getClusterAddress();
|
|
if (address == null) { return null; }
|
|
|
|
// send request
|
|
try {
|
|
return nxTools.table(
|
|
httpc.wput(new yacyURL("http://" + address + "/yacy/crawlReceipt.html", null),
|
|
target.getHexHash() + ".yacyh",
|
|
60000,
|
|
null,
|
|
null,
|
|
proxyConfig(),
|
|
post,
|
|
null
|
|
), "UTF-8"
|
|
);
|
|
} catch (Exception e) {
|
|
// most probably a network time-out exception
|
|
yacyCore.log.logSevere("yacyClient.crawlReceipt error:" + e.getMessage());
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static HashMap<String, Object> transferIndex(yacySeed target, indexContainer[] indexes, HashMap<String, indexURLEntry> urlCache, boolean gzipBody, int timeout) {
|
|
|
|
HashMap<String, Object> resultObj = new HashMap<String, Object>();
|
|
int payloadSize = 0;
|
|
try {
|
|
|
|
// check if we got all necessary urls in the urlCache (only for debugging)
|
|
Iterator<indexRWIRowEntry> eenum;
|
|
indexRWIEntry entry;
|
|
for (int i = 0; i < indexes.length; i++) {
|
|
eenum = indexes[i].entries();
|
|
while (eenum.hasNext()) {
|
|
entry = (indexRWIEntry) eenum.next();
|
|
if (urlCache.get(entry.urlHash()) == null) {
|
|
yacyCore.log.logFine("DEBUG transferIndex: to-send url hash '" + entry.urlHash() + "' is not contained in urlCache");
|
|
}
|
|
}
|
|
}
|
|
|
|
// transfer the RWI without the URLs
|
|
HashMap<String, String> in = transferRWI(target, indexes, gzipBody, timeout);
|
|
resultObj.put("resultTransferRWI", in);
|
|
|
|
if (in == null) {
|
|
resultObj.put("result", "no_connection_1");
|
|
return resultObj;
|
|
}
|
|
if (in.containsKey("indexPayloadSize")) payloadSize += Integer.parseInt(in.get("indexPayloadSize"));
|
|
|
|
String result = (String) in.get("result");
|
|
if (result == null) {
|
|
resultObj.put("result", "no_result_1");
|
|
return resultObj;
|
|
}
|
|
|
|
if (!(result.equals("ok"))) {
|
|
target.setFlagAcceptRemoteIndex(false);
|
|
yacyCore.seedDB.update(target.hash, target);
|
|
resultObj.put("result", result);
|
|
return resultObj;
|
|
}
|
|
|
|
// in now contains a list of unknown hashes
|
|
final String uhss = (String) in.get("unknownURL");
|
|
if (uhss == null) {
|
|
resultObj.put("result","no_unknownURL_tag_in_response");
|
|
return resultObj;
|
|
}
|
|
if (uhss.length() == 0) { return resultObj; } // all url's known, we are ready here
|
|
|
|
final String[] uhs = uhss.split(",");
|
|
if (uhs.length == 0) { return resultObj; } // all url's known
|
|
|
|
// extract the urlCache from the result
|
|
indexURLEntry[] urls = new indexURLEntry[uhs.length];
|
|
for (int i = 0; i < uhs.length; i++) {
|
|
urls[i] = (indexURLEntry) urlCache.get(uhs[i]);
|
|
if (urls[i] == null) {
|
|
yacyCore.log.logFine("DEBUG transferIndex: requested url hash '" + uhs[i] + "', unknownURL='" + uhss + "'");
|
|
}
|
|
}
|
|
|
|
in = transferURL(target, urls, gzipBody, timeout);
|
|
resultObj.put("resultTransferURL", in);
|
|
|
|
if (in == null) {
|
|
resultObj.put("result","no_connection_2");
|
|
return resultObj;
|
|
}
|
|
if (in.containsKey("urlPayloadSize")) payloadSize += Integer.parseInt(in.get("urlPayloadSize"));
|
|
|
|
result = (String) in.get("result");
|
|
if (result == null) {
|
|
resultObj.put("result","no_result_2");
|
|
return resultObj;
|
|
}
|
|
if (!(result.equals("ok"))) {
|
|
target.setFlagAcceptRemoteIndex(false);
|
|
yacyCore.seedDB.update(target.hash, target);
|
|
resultObj.put("result",result);
|
|
return resultObj;
|
|
}
|
|
// int doubleentries = Integer.parseInt((String) in.get("double"));
|
|
// System.out.println("DEBUG tansferIndex: transferred " + uhs.length + " URL's, double=" + doubleentries);
|
|
|
|
return resultObj;
|
|
} finally {
|
|
resultObj.put("payloadSize", new Integer(payloadSize));
|
|
}
|
|
}
|
|
|
|
private static HashMap<String, String> transferRWI(yacySeed targetSeed, indexContainer[] indexes, boolean gzipBody, int timeout) {
|
|
final String address = targetSeed.getPublicAddress();
|
|
if (address == null) { return null; }
|
|
|
|
// prepare post values
|
|
final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), targetSeed.hash);
|
|
|
|
// enabling gzip compression for post request body
|
|
if ((gzipBody) && (targetSeed.getVersion() >= yacyVersion.YACY_SUPPORTS_GZIP_POST_REQUESTS)) {
|
|
post.put(httpc.GZIP_POST_BODY,"true");
|
|
}
|
|
post.put("wordc", Integer.toString(indexes.length));
|
|
|
|
int indexcount = 0;
|
|
final StringBuffer entrypost = new StringBuffer(indexes.length*73);
|
|
Iterator<indexRWIRowEntry> eenum;
|
|
indexRWIEntry entry;
|
|
for (int i = 0; i < indexes.length; i++) {
|
|
eenum = indexes[i].entries();
|
|
while (eenum.hasNext()) {
|
|
entry = (indexRWIEntry) eenum.next();
|
|
entrypost.append(indexes[i].getWordHash())
|
|
.append(entry.toPropertyForm())
|
|
.append(serverCore.CRLF_STRING);
|
|
indexcount++;
|
|
}
|
|
}
|
|
|
|
if (indexcount == 0) {
|
|
// nothing to do but everything ok
|
|
final HashMap<String, String> result = new HashMap<String, String>(2);
|
|
result.put("result", "ok");
|
|
result.put("unknownURL", "");
|
|
return result;
|
|
}
|
|
|
|
post.put("entryc", indexcount);
|
|
post.put("indexes", entrypost.toString());
|
|
try {
|
|
final ArrayList<String> v = nxTools.strings(
|
|
httpc.wput(
|
|
new yacyURL("http://" + address + "/yacy/transferRWI.html", null),
|
|
targetSeed.getHexHash() + ".yacyh",
|
|
timeout,
|
|
null,
|
|
null,
|
|
proxyConfig(),
|
|
post,
|
|
null
|
|
), "UTF-8");
|
|
// this should return a list of urlhashes that are unknwon
|
|
if ((v != null) && (v.size() > 0)) {
|
|
yacyCore.seedDB.mySeed().incSI(indexcount);
|
|
}
|
|
|
|
final HashMap<String, String> result = nxTools.table(v);
|
|
// return the transfered index data in bytes (for debugging only)
|
|
result.put("indexPayloadSize", Integer.toString(entrypost.length()));
|
|
return result;
|
|
} catch (Exception e) {
|
|
yacyCore.log.logSevere("yacyClient.transferRWI error:" + e.getMessage());
|
|
return null;
|
|
}
|
|
}
|
|
|
|
private static HashMap<String, String> transferURL(yacySeed targetSeed, indexURLEntry[] urls, boolean gzipBody, int timeout) {
|
|
// this post a message to the remote message board
|
|
final String address = targetSeed.getPublicAddress();
|
|
if (address == null) { return null; }
|
|
|
|
// prepare post values
|
|
final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), targetSeed.hash);
|
|
|
|
// enabling gzip compression for post request body
|
|
if ((gzipBody) && (targetSeed.getVersion() >= yacyVersion.YACY_SUPPORTS_GZIP_POST_REQUESTS)) {
|
|
post.put(httpc.GZIP_POST_BODY,"true");
|
|
}
|
|
|
|
String resource = "";
|
|
int urlc = 0;
|
|
int urlPayloadSize = 0;
|
|
for (int i = 0; i < urls.length; i++) {
|
|
if (urls[i] != null) {
|
|
resource = urls[i].toString();
|
|
if (resource != null) {
|
|
post.put("url" + urlc, resource);
|
|
urlPayloadSize += resource.length();
|
|
urlc++;
|
|
}
|
|
}
|
|
}
|
|
post.put("urlc", urlc);
|
|
try {
|
|
final ArrayList<String> v = nxTools.strings(
|
|
httpc.wput(
|
|
new yacyURL("http://" + address + "/yacy/transferURL.html", null),
|
|
targetSeed.getHexHash() + ".yacyh",
|
|
timeout,
|
|
null,
|
|
null,
|
|
proxyConfig(),
|
|
post,
|
|
null
|
|
), "UTF-8");
|
|
|
|
if ((v != null) && (v.size() > 0)) {
|
|
yacyCore.seedDB.mySeed().incSU(urlc);
|
|
}
|
|
|
|
HashMap<String, String> result = nxTools.table(v);
|
|
// return the transfered url data in bytes (for debugging only)
|
|
result.put("urlPayloadSize", Integer.toString(urlPayloadSize));
|
|
return result;
|
|
} catch (Exception e) {
|
|
yacyCore.log.logSevere("yacyClient.transferURL error:" + e.getMessage());
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static HashMap<String, String> getProfile(yacySeed targetSeed) {
|
|
|
|
// this post a message to the remote message board
|
|
final serverObjects post = yacyNetwork.basicRequestPost(plasmaSwitchboard.getSwitchboard(), targetSeed.hash);
|
|
|
|
String address = targetSeed.getClusterAddress();
|
|
if (address == null) { address = "localhost:8080"; }
|
|
try {
|
|
return nxTools.table(
|
|
httpc.wput(
|
|
new yacyURL("http://" + address + "/yacy/profile.html", null),
|
|
targetSeed.getHexHash() + ".yacyh",
|
|
12000,
|
|
null,
|
|
null,
|
|
proxyConfig(),
|
|
post,
|
|
null
|
|
), "UTF-8");
|
|
} catch (Exception e) {
|
|
yacyCore.log.logSevere("yacyClient.getProfile error:" + e.getMessage());
|
|
return null;
|
|
}
|
|
}
|
|
|
|
private static final httpRemoteProxyConfig proxyConfig() {
|
|
httpRemoteProxyConfig p = plasmaSwitchboard.getSwitchboard().remoteProxyConfig;
|
|
return ((p != null) && (p.useProxy()) && (p.useProxy4Yacy())) ? p : null;
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
System.out.println("yacyClient Test");
|
|
try {
|
|
final plasmaSwitchboard sb = new plasmaSwitchboard(new File(args[0]), "httpProxy.init", "DATA/SETTINGS/httpProxy.conf", false);
|
|
/*final yacyCore core =*/ new yacyCore(sb);
|
|
yacyCore.peerActions.loadSeedLists();
|
|
final yacySeed target = yacyCore.seedDB.getConnected(args[1]);
|
|
final String wordhashe = plasmaCondenser.word2hash("test");
|
|
//System.out.println("permission=" + permissionMessage(args[1]));
|
|
|
|
// should we use the proxy?
|
|
boolean useProxy = (sb.remoteProxyConfig != null) &&
|
|
(sb.remoteProxyConfig.useProxy()) &&
|
|
(sb.remoteProxyConfig.useProxy4Yacy());
|
|
|
|
final HashMap<String, String> result = nxTools.table(
|
|
httpc.wget(
|
|
new yacyURL("http://" + target.getPublicAddress() + "/yacy/search.html" +
|
|
"?myseed=" + yacyCore.seedDB.mySeed().genSeedStr(null) +
|
|
"&youare=" + target.hash + "&key=" +
|
|
"&myseed=" + yacyCore.seedDB.mySeed() .genSeedStr(null) +
|
|
"&count=10" +
|
|
"&resource=global" +
|
|
"&query=" + wordhashe +
|
|
"&network.unit.name=" + plasmaSwitchboard.getSwitchboard().getConfig("network.unit.name", yacySeed.DFLT_NETWORK_UNIT), null),
|
|
target.getHexHash() + ".yacyh",
|
|
5000,
|
|
null,
|
|
null,
|
|
(useProxy) ? sb.remoteProxyConfig : null,
|
|
null,
|
|
null
|
|
)
|
|
, "UTF-8");
|
|
System.out.println("Result=" + result.toString());
|
|
} catch (Exception e) {
|
|
e.printStackTrace();
|
|
}
|
|
System.exit(0);
|
|
}
|
|
|
|
}
|