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1008 lines
43 KiB
1008 lines
43 KiB
// yacySeedDB.java
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// -------------------------------------
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// (C) by Michael Peter Christen; mc@yacy.net
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004, 2005
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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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package de.anomic.yacy;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.lang.ref.SoftReference;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.Hashtable;
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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.crawler.retrieval.HTTPLoader;
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import de.anomic.http.client.Client;
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import de.anomic.http.metadata.HeaderFramework;
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import de.anomic.http.metadata.RequestHeader;
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import de.anomic.http.metadata.ResponseContainer;
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import de.anomic.http.server.HTTPDemon;
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import de.anomic.http.server.AlternativeDomainNames;
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import de.anomic.kelondro.blob.Heap;
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import de.anomic.kelondro.blob.MapDataMining;
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import de.anomic.kelondro.order.Base64Order;
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import de.anomic.kelondro.util.kelondroException;
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import de.anomic.kelondro.util.FileUtils;
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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.serverSwitch;
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import de.anomic.yacy.dht.PartitionScheme;
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import de.anomic.yacy.dht.VerticalWordPartitionScheme;
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import de.anomic.yacy.logging.Log;
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public final class yacySeedDB implements AlternativeDomainNames {
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// global statics
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/**
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* this is the lenght(12) of the hash key that is used:<br>
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* - for seed hashes (this Object)<br>
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* - for word hashes (plasmaIndexEntry.wordHashLength)<br>
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* - for L-URL hashes (plasmaLURL.urlHashLength)<br><br>
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* these hashes all shall be generated by base64.enhancedCoder
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*/
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public static final int commonHashLength = 12;
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public static final int dhtActivityMagic = 32;
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/**
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* <p><code>public static final String <strong>DBFILE_OWN_SEED</strong> = "mySeed.txt"</code></p>
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* <p>Name of the file containing the database holding this peer's seed</p>
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*/
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public static final String DBFILE_OWN_SEED = "mySeed.txt";
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public static final String[] sortFields = new String[] {yacySeed.LCOUNT, yacySeed.ICOUNT, yacySeed.UPTIME, yacySeed.VERSION, yacySeed.LASTSEEN};
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public static final String[] longaccFields = new String[] {yacySeed.LCOUNT, yacySeed.ICOUNT, yacySeed.ISPEED};
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public static final String[] doubleaccFields = new String[] {yacySeed.RSPEED};
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// class objects
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protected File seedActiveDBFile, seedPassiveDBFile, seedPotentialDBFile;
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protected File myOwnSeedFile;
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protected MapDataMining seedActiveDB, seedPassiveDB, seedPotentialDB;
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public int lastSeedUpload_seedDBSize = 0;
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public long lastSeedUpload_timeStamp = System.currentTimeMillis();
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public String lastSeedUpload_myIP = "";
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public yacyPeerActions peerActions;
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public yacyNewsPool newsPool;
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private int netRedundancy;
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public PartitionScheme scheme;
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private yacySeed mySeed; // my own seed
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private final Hashtable<String, String> nameLookupCache; // a name-to-hash relation
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private final Hashtable<InetAddress, SoftReference<yacySeed>> ipLookupCache;
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public yacySeedDB(
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final File networkRoot,
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final String seedActiveDBFileName,
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final String seedPassiveDBFileName,
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final String seedPotentialDBFileName,
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final File myOwnSeedFile,
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final int redundancy,
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final int partitionExponent,
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final boolean useTailCache,
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final boolean exceed134217727) {
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this.seedActiveDBFile = new File(networkRoot, seedActiveDBFileName);
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this.seedPassiveDBFile = new File(networkRoot, seedPassiveDBFileName);
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this.seedPotentialDBFile = new File(networkRoot, seedPotentialDBFileName);
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this.mySeed = null; // my own seed
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this.myOwnSeedFile = myOwnSeedFile;
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this.netRedundancy = redundancy;
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this.scheme = new VerticalWordPartitionScheme(partitionExponent);
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// set up seed database
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seedActiveDB = openSeedTable(seedActiveDBFile);
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seedPassiveDB = openSeedTable(seedPassiveDBFile);
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seedPotentialDB = openSeedTable(seedPotentialDBFile);
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// start our virtual DNS service for yacy peers with empty cache
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nameLookupCache = new Hashtable<String, String>();
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// cache for reverse name lookup
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ipLookupCache = new Hashtable<InetAddress, SoftReference<yacySeed>>();
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// check if we are in the seedCaches: this can happen if someone else published our seed
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removeMySeed();
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lastSeedUpload_seedDBSize = sizeConnected();
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// tell the httpdProxy how to find this table as address resolver
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HTTPDemon.setAlternativeResolver(this);
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// create or init news database
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this.newsPool = new yacyNewsPool(networkRoot, useTailCache, exceed134217727);
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// deploy peer actions
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this.peerActions = new yacyPeerActions(this, newsPool);
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}
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private synchronized void initMySeed() {
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if (this.mySeed != null) return;
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// create or init own seed
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if (myOwnSeedFile.length() > 0) try {
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// load existing identity
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mySeed = yacySeed.load(myOwnSeedFile);
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if(mySeed == null) throw new IOException("current seed is null");
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} catch (final IOException e) {
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// create new identity
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Log.logSevere("SEEDDB", "could not load stored mySeed.txt from " + myOwnSeedFile.toString() + ": " + e.getMessage() + ". creating new seed.", e);
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mySeed = yacySeed.genLocalSeed(this);
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try {
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mySeed.save(myOwnSeedFile);
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} catch (final IOException ee) {
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Log.logSevere("SEEDDB", "error saving mySeed.txt (1) to " + myOwnSeedFile.toString() + ": " + ee.getMessage(), ee);
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ee.printStackTrace();
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System.exit(-1);
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}
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} else {
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// create new identity
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Log.logInfo("SEEDDB", "could not find stored mySeed.txt at " + myOwnSeedFile.toString() + ": " + ". creating new seed.");
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mySeed = yacySeed.genLocalSeed(this);
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try {
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mySeed.save(myOwnSeedFile);
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} catch (final IOException ee) {
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Log.logSevere("SEEDDB", "error saving mySeed.txt (2) to " + myOwnSeedFile.toString() + ": " + ee.getMessage(), ee);
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ee.printStackTrace();
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System.exit(-1);
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}
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}
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mySeed.setIP(""); // we delete the old information to see what we have now
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mySeed.put(yacySeed.PEERTYPE, yacySeed.PEERTYPE_VIRGIN); // markup startup condition
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}
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public int redundancy() {
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if (this.mySeed.isJunior()) return 1;
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return this.netRedundancy;
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}
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public boolean mySeedIsDefined() {
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return this.mySeed != null;
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}
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public yacySeed mySeed() {
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if (this.mySeed == null) {
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if (this.sizeConnected() == 0) try {Thread.sleep(5000);} catch (final InterruptedException e) {} // wait for init
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initMySeed();
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}
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return this.mySeed;
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}
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public String myAlternativeAddress() {
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return mySeed().getName() + ".yacy";
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}
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public String myIP() {
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return mySeed().getIP();
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}
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public int myPort() {
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return mySeed().getPort();
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}
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public String myName() {
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return mySeed.getName();
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}
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public String myID() {
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return mySeed.hash;
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}
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public synchronized void removeMySeed() {
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if ((seedActiveDB.size() == 0) && (seedPassiveDB.size() == 0) && (seedPotentialDB.size() == 0)) return; // avoid that the own seed is initialized too early
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if (this.mySeed == null) initMySeed();
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try {
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seedActiveDB.remove(mySeed.hash);
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seedPassiveDB.remove(mySeed.hash);
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seedPotentialDB.remove(mySeed.hash);
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} catch (final IOException e) { Log.logWarning("yacySeedDB", "could not remove hash ("+ e.getClass() +"): "+ e.getMessage()); }
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}
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public void saveMySeed() {
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try {
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this.mySeed().save(myOwnSeedFile);
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} catch (final IOException e) { Log.logWarning("yacySeedDB", "could not save mySeed '"+ myOwnSeedFile +"': "+ e.getMessage()); }
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}
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public boolean noDHTActivity() {
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// for small networks, we don't perform DHT transmissions, because it is possible to search over all peers
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return this.sizeConnected() <= dhtActivityMagic;
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}
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private synchronized MapDataMining openSeedTable(final File seedDBFile) {
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final File parentDir = new File(seedDBFile.getParent());
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if (!parentDir.exists()) {
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if(!parentDir.mkdirs())
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Log.logWarning("yacySeedDB", "could not create directories for "+ seedDBFile.getParent());
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}
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try {
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return new MapDataMining(new Heap(seedDBFile, commonHashLength, Base64Order.enhancedCoder, 1024 * 512), 500, sortFields, longaccFields, doubleaccFields, null, this);
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} catch (final Exception e) {
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// try again
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FileUtils.deletedelete(seedDBFile);
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try {
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return new MapDataMining(new Heap(seedDBFile, commonHashLength, Base64Order.enhancedCoder, 1024 * 512), 500, sortFields, longaccFields, doubleaccFields, null, this);
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} catch (IOException e1) {
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e1.printStackTrace();
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System.exit(-1);
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return null;
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}
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}
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}
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protected synchronized MapDataMining resetSeedTable(MapDataMining seedDB, final File seedDBFile) {
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// this is an emergency function that should only be used if any problem with the
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// seed.db is detected
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yacyCore.log.logWarning("seed-db " + seedDBFile.toString() + " reset (on-the-fly)");
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seedDB.close();
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FileUtils.deletedelete(seedDBFile);
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if (seedDBFile.exists())
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Log.logWarning("yacySeedDB", "could not delete file "+ seedDBFile);
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// create new seed database
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seedDB = openSeedTable(seedDBFile);
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return seedDB;
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}
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public synchronized void resetActiveTable() { seedActiveDB = resetSeedTable(seedActiveDB, seedActiveDBFile); }
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public synchronized void resetPassiveTable() { seedPassiveDB = resetSeedTable(seedPassiveDB, seedPassiveDBFile); }
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public synchronized void resetPotentialTable() { seedPotentialDB = resetSeedTable(seedPotentialDB, seedPotentialDBFile); }
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public void close() {
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if (seedActiveDB != null) seedActiveDB.close();
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if (seedPassiveDB != null) seedPassiveDB.close();
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if (seedPotentialDB != null) seedPotentialDB.close();
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newsPool.close();
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peerActions.close();
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}
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public Iterator<yacySeed> seedsSortedConnected(final boolean up, final String field) {
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// enumerates seed-type objects: all seeds sequentially ordered by field
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return new seedEnum(up, field, seedActiveDB);
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}
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public Iterator<yacySeed> seedsSortedDisconnected(final boolean up, final String field) {
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// enumerates seed-type objects: all seeds sequentially ordered by field
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return new seedEnum(up, field, seedPassiveDB);
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}
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public Iterator<yacySeed> seedsSortedPotential(final boolean up, final String field) {
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// enumerates seed-type objects: all seeds sequentially ordered by field
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return new seedEnum(up, field, seedPotentialDB);
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}
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public TreeMap<byte[], String> /* peer-b64-hashes/ipport */ clusterHashes(final String clusterdefinition) {
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// collects seeds according to cluster definition string, which consists of
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// comma-separated .yacy or .yacyh-domains
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// the domain may be extended by an alternative address specification of the form
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// <ip> or <ip>:<port>. The port must be identical to the port specified in the peer seed,
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// therefore it is optional. The address specification is separated by a '='; the complete
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// address has therefore the form
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// address ::= (<peername>'.yacy'|<peerhexhash>'.yacyh'){'='<ip>{':'<port}}
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// clusterdef ::= {address}{','address}*
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final String[] addresses = (clusterdefinition.length() == 0) ? new String[0] : clusterdefinition.split(",");
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final TreeMap<byte[], String> clustermap = new TreeMap<byte[], String>(Base64Order.enhancedCoder);
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yacySeed seed;
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String hash, yacydom, ipport;
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int p;
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for (int i = 0; i < addresses.length; i++) {
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p = addresses[i].indexOf('=');
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if (p >= 0) {
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yacydom = addresses[i].substring(0, p);
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ipport = addresses[i].substring(p + 1);
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} else {
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yacydom = addresses[i];
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ipport = null;
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}
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if (yacydom.endsWith(".yacyh")) {
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// find a peer with its hexhash
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hash = yacySeed.hexHash2b64Hash(yacydom.substring(0, yacydom.length() - 6));
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seed = get(hash);
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if (seed == null) {
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yacyCore.log.logWarning("cluster peer '" + yacydom + "' was not found.");
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} else {
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clustermap.put(hash.getBytes(), ipport);
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}
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} else if (yacydom.endsWith(".yacy")) {
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// find a peer with its name
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seed = lookupByName(yacydom.substring(0, yacydom.length() - 5));
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if (seed == null) {
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yacyCore.log.logWarning("cluster peer '" + yacydom + "' was not found.");
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} else {
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clustermap.put(seed.hash.getBytes(), ipport);
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}
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} else {
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yacyCore.log.logWarning("cluster peer '" + addresses[i] + "' has wrong syntax. the name must end with .yacy or .yacyh");
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}
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}
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return clustermap;
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}
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public Iterator<yacySeed> seedsConnected(final boolean up, final boolean rot, final byte[] firstHash, final float minVersion) {
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// enumerates seed-type objects: all seeds sequentially without order
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return new seedEnum(up, rot, (firstHash == null) ? null : firstHash, null, seedActiveDB, minVersion);
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}
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public Iterator<yacySeed> seedsDisconnected(final boolean up, final boolean rot, final byte[] firstHash, final float minVersion) {
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// enumerates seed-type objects: all seeds sequentially without order
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return new seedEnum(up, rot, (firstHash == null) ? null : firstHash, null, seedPassiveDB, minVersion);
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}
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public Iterator<yacySeed> seedsPotential(final boolean up, final boolean rot, final byte[] firstHash, final float minVersion) {
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// enumerates seed-type objects: all seeds sequentially without order
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return new seedEnum(up, rot, (firstHash == null) ? null : firstHash, null, seedPotentialDB, minVersion);
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}
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public yacySeed anySeedVersion(final float minVersion) {
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// return just any seed that has a specific minimum version number
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final Iterator<yacySeed> e = seedsConnected(true, true, yacySeed.randomHash(), minVersion);
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return e.next();
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}
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public int sizeConnected() {
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return seedActiveDB.size();
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}
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public int sizeDisconnected() {
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return seedPassiveDB.size();
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}
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public int sizePotential() {
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return seedPotentialDB.size();
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}
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public long countActiveURL() { return seedActiveDB.getLongAcc(yacySeed.LCOUNT); }
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public long countActiveRWI() { return seedActiveDB.getLongAcc(yacySeed.ICOUNT); }
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public long countActivePPM() { return seedActiveDB.getLongAcc(yacySeed.ISPEED); }
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public double countActiveQPM() { return seedActiveDB.getDoubleAcc(yacySeed.RSPEED); }
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public long countPassiveURL() { return seedPassiveDB.getLongAcc(yacySeed.LCOUNT); }
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public long countPassiveRWI() { return seedPassiveDB.getLongAcc(yacySeed.ICOUNT); }
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public long countPotentialURL() { return seedPotentialDB.getLongAcc(yacySeed.LCOUNT); }
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public long countPotentialRWI() { return seedPotentialDB.getLongAcc(yacySeed.ICOUNT); }
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public synchronized void addConnected(final yacySeed seed) {
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if (seed.isProper(false) != null) return;
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//seed.put(yacySeed.LASTSEEN, yacyCore.shortFormatter.format(new Date(yacyCore.universalTime())));
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try {
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nameLookupCache.put(seed.getName(), seed.hash);
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final Map<String, String> seedPropMap = seed.getMap();
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synchronized (seedPropMap) {
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seedActiveDB.put(seed.hash, seedPropMap);
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}
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seedPassiveDB.remove(seed.hash);
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seedPotentialDB.remove(seed.hash);
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} catch (final IOException e) {
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yacyCore.log.logSevere("ERROR add: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
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resetActiveTable();
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} catch (final kelondroException e) {
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yacyCore.log.logSevere("ERROR add: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
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resetActiveTable();
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} catch (final IllegalArgumentException e) {
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yacyCore.log.logSevere("ERROR add: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
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resetActiveTable();
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}
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}
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public synchronized void addDisconnected(final yacySeed seed) {
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if (seed.isProper(false) != null) return;
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try {
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nameLookupCache.remove(seed.getName());
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seedActiveDB.remove(seed.hash);
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seedPotentialDB.remove(seed.hash);
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} catch (final Exception e) { Log.logWarning("yacySeedDB", "could not remove hash ("+ e.getClass() +"): "+ e.getMessage()); }
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//seed.put(yacySeed.LASTSEEN, yacyCore.shortFormatter.format(new Date(yacyCore.universalTime())));
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try {
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final Map<String, String> seedPropMap = seed.getMap();
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synchronized (seedPropMap) {
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seedPassiveDB.put(seed.hash, seedPropMap);
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}
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} catch (final IOException e) {
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yacyCore.log.logSevere("ERROR add: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
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resetPassiveTable();
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} catch (final kelondroException e) {
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yacyCore.log.logSevere("ERROR add: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
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resetPassiveTable();
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} catch (final IllegalArgumentException e) {
|
|
yacyCore.log.logSevere("ERROR add: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
|
|
resetPassiveTable();
|
|
}
|
|
}
|
|
|
|
public synchronized void addPotential(final yacySeed seed) {
|
|
if (seed.isProper(false) != null) return;
|
|
try {
|
|
nameLookupCache.remove(seed.getName());
|
|
seedActiveDB.remove(seed.hash);
|
|
seedPassiveDB.remove(seed.hash);
|
|
} catch (final Exception e) { Log.logWarning("yacySeedDB", "could not remove hash ("+ e.getClass() +"): "+ e.getMessage()); }
|
|
//seed.put(yacySeed.LASTSEEN, yacyCore.shortFormatter.format(new Date(yacyCore.universalTime())));
|
|
try {
|
|
final Map<String, String> seedPropMap = seed.getMap();
|
|
synchronized (seedPropMap) {
|
|
seedPotentialDB.put(seed.hash, seedPropMap);
|
|
}
|
|
} catch (final IOException e) {
|
|
yacyCore.log.logSevere("ERROR add: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
|
|
resetPotentialTable();
|
|
} catch (final kelondroException e) {
|
|
yacyCore.log.logSevere("ERROR add: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
|
|
resetPotentialTable();
|
|
} catch (final IllegalArgumentException e) {
|
|
yacyCore.log.logSevere("ERROR add: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
|
|
resetPotentialTable();
|
|
}
|
|
}
|
|
|
|
public synchronized void removeDisconnected(final String peerHash) {
|
|
if(peerHash == null) return;
|
|
try {
|
|
seedPassiveDB.remove(peerHash);
|
|
} catch (final IOException e) { Log.logWarning("yacySeedDB", "could not remove hash ("+ e.getClass() +"): "+ e.getMessage()); }
|
|
}
|
|
|
|
public synchronized void removePotential(final String peerHash) {
|
|
if(peerHash == null) return;
|
|
try {
|
|
seedPotentialDB.remove(peerHash);
|
|
} catch (final IOException e) { Log.logWarning("yacySeedDB", "could not remove hash ("+ e.getClass() +"): "+ e.getMessage()); }
|
|
}
|
|
|
|
public boolean hasConnected(final String hash) {
|
|
try {
|
|
return seedActiveDB.has(hash);
|
|
} catch (final IOException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public boolean hasDisconnected(final String hash) {
|
|
try {
|
|
return seedPassiveDB.has(hash);
|
|
} catch (final IOException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public boolean hasPotential(final String hash) {
|
|
try {
|
|
return seedPotentialDB.has(hash);
|
|
} catch (final IOException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
private yacySeed get(final String hash, final MapDataMining database) {
|
|
if (hash == null) return null;
|
|
if ((this.mySeed != null) && (hash.equals(mySeed.hash))) return mySeed;
|
|
Map<String, String> entry;
|
|
try {
|
|
entry = database.get(hash);
|
|
} catch (final IOException e) {
|
|
entry = null;
|
|
}
|
|
if (entry == null) return null;
|
|
return new yacySeed(hash, entry);
|
|
}
|
|
|
|
public yacySeed getConnected(final String hash) {
|
|
return get(hash, seedActiveDB);
|
|
}
|
|
|
|
public yacySeed getDisconnected(final String hash) {
|
|
return get(hash, seedPassiveDB);
|
|
}
|
|
|
|
public yacySeed getPotential(final String hash) {
|
|
return get(hash, seedPotentialDB);
|
|
}
|
|
|
|
public yacySeed get(final String hash) {
|
|
yacySeed seed = getConnected(hash);
|
|
if (seed == null) seed = getDisconnected(hash);
|
|
if (seed == null) seed = getPotential(hash);
|
|
return seed;
|
|
}
|
|
|
|
public void update(final String hash, final yacySeed seed) {
|
|
if (this.mySeed == null) initMySeed();
|
|
if (hash.equals(mySeed.hash)) {
|
|
mySeed = seed;
|
|
return;
|
|
}
|
|
|
|
yacySeed s = get(hash, seedActiveDB);
|
|
if (s != null) try { seedActiveDB.put(hash, seed.getMap()); return;} catch (final IOException e) {}
|
|
|
|
s = get(hash, seedPassiveDB);
|
|
if (s != null) try { seedPassiveDB.put(hash, seed.getMap()); return;} catch (final IOException e) {}
|
|
|
|
s = get(hash, seedPotentialDB);
|
|
if (s != null) try { seedPotentialDB.put(hash, seed.getMap()); return;} catch (final IOException e) {}
|
|
}
|
|
|
|
public yacySeed lookupByName(final String peerName) {
|
|
// reads a seed by searching by name
|
|
|
|
// local peer?
|
|
if (peerName.equals("localpeer")) {
|
|
if (this.mySeed == null) initMySeed();
|
|
return mySeed;
|
|
}
|
|
|
|
// then try to use the cache
|
|
String seedhash = nameLookupCache.get(peerName);
|
|
yacySeed seed;
|
|
if (seedhash != null) {
|
|
seed = this.get(seedhash);
|
|
if (seed != null) return seed;
|
|
}
|
|
|
|
// enumerate the cache and simultanous insert values
|
|
String name;
|
|
for (int table = 0; table < 2; table++) {
|
|
final Iterator<yacySeed> e = (table == 0) ? seedsConnected(true, false, null, (float) 0.0) : seedsDisconnected(true, false, null, (float) 0.0);
|
|
while (e.hasNext()) {
|
|
seed = e.next();
|
|
if (seed != null) {
|
|
name = seed.getName().toLowerCase();
|
|
if (seed.isProper(false) == null) nameLookupCache.put(name, seed.hash);
|
|
if (name.equals(peerName)) return seed;
|
|
}
|
|
}
|
|
}
|
|
// check local seed
|
|
if (this.mySeed == null) initMySeed();
|
|
name = mySeed.getName().toLowerCase();
|
|
if (mySeed.isProper(false) == null) nameLookupCache.put(name, mySeed.hash);
|
|
if (name.equals(peerName)) return mySeed;
|
|
// nothing found
|
|
return null;
|
|
}
|
|
|
|
public yacySeed lookupByIP(
|
|
final InetAddress peerIP,
|
|
final boolean lookupConnected,
|
|
final boolean lookupDisconnected,
|
|
final boolean lookupPotential
|
|
) {
|
|
|
|
if (peerIP == null) return null;
|
|
yacySeed seed = null;
|
|
|
|
// local peer?
|
|
if (HTTPDemon.isThisHostIP(peerIP)) {
|
|
if (this.mySeed == null) initMySeed();
|
|
return mySeed;
|
|
}
|
|
|
|
// then try to use the cache
|
|
final SoftReference<yacySeed> ref = ipLookupCache.get(peerIP);
|
|
if (ref != null) {
|
|
seed = ref.get();
|
|
if (seed != null) return seed;
|
|
}
|
|
|
|
int pos = -1;
|
|
String addressStr = null;
|
|
InetAddress seedIPAddress = null;
|
|
final HashSet<String> badPeerHashes = new HashSet<String>();
|
|
|
|
if (lookupConnected) {
|
|
// enumerate the cache and simultanous insert values
|
|
final Iterator<yacySeed> e = seedsConnected(true, false, null, (float) 0.0);
|
|
while (e.hasNext()) {
|
|
try {
|
|
seed = e.next();
|
|
if (seed != null) {
|
|
addressStr = seed.getPublicAddress();
|
|
if (addressStr == null) {
|
|
Log.logWarning("YACY","lookupByIP/Connected: address of seed " + seed.getName() + "/" + seed.hash + " is null.");
|
|
badPeerHashes.add(seed.hash);
|
|
continue;
|
|
}
|
|
if ((pos = addressStr.indexOf(":"))!= -1) {
|
|
addressStr = addressStr.substring(0,pos);
|
|
}
|
|
seedIPAddress = InetAddress.getByName(addressStr);
|
|
if (seed.isProper(false) == null) ipLookupCache.put(seedIPAddress, new SoftReference<yacySeed>(seed));
|
|
if (seedIPAddress.equals(peerIP)) return seed;
|
|
}
|
|
} catch (final UnknownHostException ex) {}
|
|
}
|
|
// delete bad peers
|
|
final Iterator<String> i = badPeerHashes.iterator();
|
|
while (i.hasNext()) try {seedActiveDB.remove(i.next());} catch (final IOException e1) {e1.printStackTrace();}
|
|
badPeerHashes.clear();
|
|
}
|
|
|
|
if (lookupDisconnected) {
|
|
// enumerate the cache and simultanous insert values
|
|
final Iterator<yacySeed>e = seedsDisconnected(true, false, null, (float) 0.0);
|
|
|
|
while (e.hasNext()) {
|
|
try {
|
|
seed = e.next();
|
|
if (seed != null) {
|
|
addressStr = seed.getPublicAddress();
|
|
if (addressStr == null) {
|
|
Log.logWarning("YACY","lookupByIPDisconnected: address of seed " + seed.getName() + "/" + seed.hash + " is null.");
|
|
badPeerHashes.add(seed.hash);
|
|
continue;
|
|
}
|
|
if ((pos = addressStr.indexOf(":"))!= -1) {
|
|
addressStr = addressStr.substring(0,pos);
|
|
}
|
|
seedIPAddress = InetAddress.getByName(addressStr);
|
|
if (seed.isProper(false) == null) ipLookupCache.put(seedIPAddress, new SoftReference<yacySeed>(seed));
|
|
if (seedIPAddress.equals(peerIP)) return seed;
|
|
}
|
|
} catch (final UnknownHostException ex) {}
|
|
}
|
|
// delete bad peers
|
|
final Iterator<String> i = badPeerHashes.iterator();
|
|
while (i.hasNext()) try {seedActiveDB.remove(i.next());} catch (final IOException e1) {e1.printStackTrace();}
|
|
badPeerHashes.clear();
|
|
}
|
|
|
|
if (lookupPotential) {
|
|
// enumerate the cache and simultanous insert values
|
|
final Iterator<yacySeed> e = seedsPotential(true, false, null, (float) 0.0);
|
|
|
|
while (e.hasNext()) {
|
|
try {
|
|
seed = e.next();
|
|
if ((seed != null) && ((addressStr = seed.getPublicAddress()) != null)) {
|
|
if ((pos = addressStr.indexOf(":"))!= -1) {
|
|
addressStr = addressStr.substring(0,pos);
|
|
}
|
|
seedIPAddress = InetAddress.getByName(addressStr);
|
|
if (seed.isProper(false) == null) ipLookupCache.put(seedIPAddress, new SoftReference<yacySeed>(seed));
|
|
if (seedIPAddress.equals(peerIP)) return seed;
|
|
}
|
|
} catch (final UnknownHostException ex) {}
|
|
}
|
|
}
|
|
|
|
try {
|
|
// check local seed
|
|
if (this.mySeed == null) return null;
|
|
addressStr = mySeed.getPublicAddress();
|
|
if (addressStr == null) return null;
|
|
if ((pos = addressStr.indexOf(":"))!= -1) {
|
|
addressStr = addressStr.substring(0,pos);
|
|
}
|
|
seedIPAddress = InetAddress.getByName(addressStr);
|
|
if (mySeed.isProper(false) == null) ipLookupCache.put(seedIPAddress, new SoftReference<yacySeed>(mySeed));
|
|
if (seedIPAddress.equals(peerIP)) return mySeed;
|
|
// nothing found
|
|
return null;
|
|
} catch (final UnknownHostException e2) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public ArrayList<String> storeCache(final File seedFile) throws IOException {
|
|
return storeCache(seedFile, false);
|
|
}
|
|
|
|
private ArrayList<String> storeCache(final File seedFile, final boolean addMySeed) throws IOException {
|
|
PrintWriter pw = null;
|
|
final ArrayList<String> v = new ArrayList<String>(seedActiveDB.size() + 1);
|
|
try {
|
|
|
|
pw = new PrintWriter(new BufferedWriter(new FileWriter(seedFile)));
|
|
|
|
// store own seed
|
|
String line;
|
|
if (this.mySeed == null) initMySeed();
|
|
if (addMySeed) {
|
|
line = mySeed.genSeedStr(null);
|
|
v.add(line);
|
|
pw.print(line + serverCore.CRLF_STRING);
|
|
}
|
|
|
|
// store other seeds
|
|
yacySeed ys;
|
|
final Iterator<yacySeed> se = seedsConnected(true, false, null, (float) 0.0);
|
|
while (se.hasNext()) {
|
|
ys = se.next();
|
|
if (ys != null) {
|
|
line = ys.genSeedStr(null);
|
|
v.add(line);
|
|
pw.print(line + serverCore.CRLF_STRING);
|
|
}
|
|
}
|
|
pw.flush();
|
|
} finally {
|
|
if (pw != null) try { pw.close(); } catch (final Exception e) {}
|
|
}
|
|
return v;
|
|
}
|
|
|
|
public String uploadCache(final yacySeedUploader uploader,
|
|
final serverSwitch sb,
|
|
final yacySeedDB seedDB,
|
|
final yacyURL seedURL) throws Exception {
|
|
|
|
// upload a seed file, if possible
|
|
if (seedURL == null) throw new NullPointerException("UPLOAD - Error: URL not given");
|
|
|
|
String log = null;
|
|
File seedFile = null;
|
|
try {
|
|
// create a seed file which for uploading ...
|
|
seedFile = File.createTempFile("seedFile",".txt", seedDB.myOwnSeedFile.getParentFile());
|
|
seedFile.deleteOnExit();
|
|
if (Log.isFine("YACY")) Log.logFine("YACY", "SaveSeedList: Storing seedlist into tempfile " + seedFile.toString());
|
|
final ArrayList<String> uv = storeCache(seedFile, true);
|
|
|
|
// uploading the seed file
|
|
if (Log.isFine("YACY")) Log.logFine("YACY", "SaveSeedList: Trying to upload seed-file, " + seedFile.length() + " bytes, " + uv.size() + " entries.");
|
|
log = uploader.uploadSeedFile(sb,seedDB,seedFile);
|
|
|
|
// test download
|
|
if (Log.isFine("YACY")) Log.logFine("YACY", "SaveSeedList: Trying to download seed-file '" + seedURL + "'.");
|
|
final ArrayList<String> check = downloadSeedFile(seedURL);
|
|
|
|
// Comparing if local copy and uploaded copy are equal
|
|
final String errorMsg = checkCache(uv, check);
|
|
if (errorMsg == null)
|
|
log = log + "UPLOAD CHECK - Success: the result vectors are equal" + serverCore.CRLF_STRING;
|
|
else {
|
|
throw new Exception("UPLOAD CHECK - Error: the result vector is different. " + errorMsg + serverCore.CRLF_STRING);
|
|
}
|
|
} finally {
|
|
if (seedFile != null)
|
|
try {
|
|
FileUtils.deletedelete(seedFile);
|
|
} catch (final Exception e) {
|
|
/* ignore this */
|
|
}
|
|
}
|
|
|
|
return log;
|
|
}
|
|
|
|
private ArrayList<String> downloadSeedFile(final yacyURL seedURL) throws IOException {
|
|
// Configure http headers
|
|
final RequestHeader reqHeader = new RequestHeader();
|
|
reqHeader.put(HeaderFramework.PRAGMA, "no-cache");
|
|
reqHeader.put(HeaderFramework.CACHE_CONTROL, "no-cache"); // httpc uses HTTP/1.0 is this necessary?
|
|
reqHeader.put(HeaderFramework.USER_AGENT, HTTPLoader.yacyUserAgent);
|
|
|
|
// init http-client
|
|
final Client client = new Client(10000, reqHeader);
|
|
byte[] content = null;
|
|
ResponseContainer res = null;
|
|
try {
|
|
// send request
|
|
res = client.GET(seedURL.toString());
|
|
|
|
// check response code
|
|
if (res.getStatusCode() != 200) {
|
|
throw new IOException("Server returned status: " + res.getStatusLine());
|
|
}
|
|
|
|
// read byte array
|
|
content = res.getData();
|
|
} finally {
|
|
if(res != null) {
|
|
res.closeStream();
|
|
}
|
|
}
|
|
|
|
try {
|
|
// uncompress it if it is gzipped
|
|
content = FileUtils.uncompressGZipArray(content);
|
|
|
|
// convert it into an array
|
|
return FileUtils.strings(content,"UTF-8");
|
|
} catch (final Exception e) {
|
|
throw new IOException("Unable to download seed file '" + seedURL + "'. " + e.getMessage());
|
|
}
|
|
}
|
|
|
|
private String checkCache(final ArrayList<String> uv, final ArrayList<String> check) {
|
|
if ((check == null) || (uv == null) || (uv.size() != check.size())) {
|
|
if (Log.isFine("YACY")) Log.logFine("YACY", "SaveSeedList: Local and uploades seed-list " +
|
|
"contains varying numbers of entries." +
|
|
"\n\tLocal seed-list: " + ((uv == null) ? "null" : Integer.toString(uv.size())) + " entries" +
|
|
"\n\tRemote seed-list: " + ((check == null) ? "null" : Integer.toString(check.size())) + " enties");
|
|
return "Entry count is different: uv.size() = " + ((uv == null) ? "null" : Integer.toString(uv.size())) + ", check = " + ((check == null) ? "null" : Integer.toString(check.size()));
|
|
}
|
|
|
|
if (Log.isFine("YACY")) Log.logFine("YACY", "SaveSeedList: Comparing local and uploades seed-list entries ...");
|
|
int i;
|
|
for (i = 0; i < uv.size(); i++) {
|
|
if (!((uv.get(i)).equals(check.get(i)))) return "Element at position " + i + " is different.";
|
|
}
|
|
|
|
// no difference found
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* resolve a yacy address
|
|
*/
|
|
public String resolve(String host) {
|
|
yacySeed seed;
|
|
int p;
|
|
String subdom = null;
|
|
if (host.endsWith(".yacyh")) {
|
|
// this is not functional at the moment
|
|
// caused by lowecasing of hashes at the browser client
|
|
p = host.indexOf(".");
|
|
if ((p > 0) && (p != (host.length() - 6))) {
|
|
subdom = host.substring(0, p);
|
|
host = host.substring(p + 1);
|
|
}
|
|
// check if we have a b64-hash or a hex-hash
|
|
String hash = host.substring(0, host.length() - 6);
|
|
if (hash.length() > commonHashLength) {
|
|
// this is probably a hex-hash
|
|
hash = yacySeed.hexHash2b64Hash(hash);
|
|
}
|
|
// check remote seeds
|
|
seed = getConnected(hash); // checks only remote, not local
|
|
// check local seed
|
|
if (seed == null) {
|
|
if (this.mySeed == null) initMySeed();
|
|
if (hash.equals(mySeed.hash))
|
|
seed = mySeed;
|
|
else return null;
|
|
}
|
|
return seed.getPublicAddress() + ((subdom == null) ? "" : ("/" + subdom));
|
|
} else if (host.endsWith(".yacy")) {
|
|
// identify subdomain
|
|
p = host.indexOf(".");
|
|
if ((p > 0) && (p != (host.length() - 5))) {
|
|
subdom = host.substring(0, p); // no double-dot attack possible, the subdom cannot have ".." in it
|
|
host = host.substring(p + 1); // if ever, the double-dots are here but do not harm
|
|
}
|
|
// identify domain
|
|
final String domain = host.substring(0, host.length() - 5).toLowerCase();
|
|
seed = lookupByName(domain);
|
|
if (seed == null) return null;
|
|
if (this.mySeed == null) initMySeed();
|
|
if ((seed == mySeed) && (!(seed.isOnline()))) {
|
|
// take local ip instead of external
|
|
return serverDomains.myPublicIP() + ":8080" + ((subdom == null) ? "" : ("/" + subdom));
|
|
}
|
|
return seed.getPublicAddress() + ((subdom == null) ? "" : ("/" + subdom));
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
class seedEnum implements Iterator<yacySeed> {
|
|
|
|
MapDataMining.mapIterator it;
|
|
yacySeed nextSeed;
|
|
MapDataMining database;
|
|
float minVersion;
|
|
|
|
public seedEnum(final boolean up, final boolean rot, final byte[] firstKey, final byte[] secondKey, final MapDataMining database, final float minVersion) {
|
|
this.database = database;
|
|
this.minVersion = minVersion;
|
|
try {
|
|
it = (firstKey == null) ? database.maps(up, rot) : database.maps(up, rot, firstKey, secondKey);
|
|
while (true) {
|
|
nextSeed = internalNext();
|
|
if (nextSeed == null) break;
|
|
if (nextSeed.getVersion() >= this.minVersion) break;
|
|
}
|
|
} catch (final IOException e) {
|
|
e.printStackTrace();
|
|
yacyCore.log.logSevere("ERROR seedLinEnum: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
|
|
if (database == seedActiveDB) seedActiveDB = resetSeedTable(seedActiveDB, seedActiveDBFile);
|
|
if (database == seedPassiveDB) seedPassiveDB = resetSeedTable(seedPassiveDB, seedPassiveDBFile);
|
|
it = null;
|
|
} catch (final kelondroException e) {
|
|
e.printStackTrace();
|
|
yacyCore.log.logSevere("ERROR seedLinEnum: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
|
|
if (database == seedActiveDB) seedActiveDB = resetSeedTable(seedActiveDB, seedActiveDBFile);
|
|
if (database == seedPassiveDB) seedPassiveDB = resetSeedTable(seedPassiveDB, seedPassiveDBFile);
|
|
it = null;
|
|
}
|
|
}
|
|
|
|
public seedEnum(final boolean up, final String field, final MapDataMining database) {
|
|
this.database = database;
|
|
try {
|
|
it = database.maps(up, field);
|
|
nextSeed = internalNext();
|
|
} catch (final kelondroException e) {
|
|
e.printStackTrace();
|
|
yacyCore.log.logSevere("ERROR seedLinEnum: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
|
|
if (database == seedActiveDB) seedActiveDB = resetSeedTable(seedActiveDB, seedActiveDBFile);
|
|
if (database == seedPassiveDB) seedPassiveDB = resetSeedTable(seedPassiveDB, seedPassiveDBFile);
|
|
if (database == seedPotentialDB) seedPotentialDB = resetSeedTable(seedPotentialDB, seedPotentialDBFile);
|
|
it = null;
|
|
}
|
|
}
|
|
|
|
public boolean hasNext() {
|
|
return (nextSeed != null);
|
|
}
|
|
|
|
public yacySeed internalNext() {
|
|
if ((it == null) || (!(it.hasNext()))) return null;
|
|
try {
|
|
while (true) {
|
|
final Map<String, String> dna = it.next();
|
|
if (dna == null) return null;
|
|
final String hash = dna.remove("key");
|
|
if (hash == null) { continue; } // bad seed
|
|
return new yacySeed(hash, dna);
|
|
}
|
|
} catch (final Exception e) {
|
|
e.printStackTrace();
|
|
yacyCore.log.logSevere("ERROR internalNext: seed.db corrupt (" + e.getMessage() + "); resetting seed.db", e);
|
|
if (database == seedActiveDB) seedActiveDB = resetSeedTable(seedActiveDB, seedActiveDBFile);
|
|
if (database == seedPassiveDB) seedPassiveDB = resetSeedTable(seedPassiveDB, seedPassiveDBFile);
|
|
if (database == seedPotentialDB) seedPotentialDB = resetSeedTable(seedPotentialDB, seedPotentialDBFile);
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public yacySeed next() {
|
|
final yacySeed seed = nextSeed;
|
|
try {while (true) {
|
|
nextSeed = internalNext();
|
|
if (nextSeed == null) break;
|
|
if (nextSeed.getVersion() >= this.minVersion) break;
|
|
}} catch (final kelondroException e) {
|
|
e.printStackTrace();
|
|
// eergency reset
|
|
yacyCore.log.logSevere("seed-db emergency reset", e);
|
|
try {
|
|
database.clear();
|
|
nextSeed = null;
|
|
return null;
|
|
} catch (final IOException e1) {
|
|
// no recovery possible
|
|
e1.printStackTrace();
|
|
System.exit(-1);
|
|
}
|
|
}
|
|
return seed;
|
|
}
|
|
|
|
public void remove() {
|
|
throw new UnsupportedOperationException();
|
|
}
|
|
|
|
}
|
|
|
|
}
|