You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
457 lines
23 KiB
457 lines
23 KiB
// yacyPeerActions.java
|
|
// -------------------------------------
|
|
// (C) by Michael Peter Christen; mc@anomic.de
|
|
// first published on http://www.anomic.de
|
|
// Frankfurt, Germany, 2005
|
|
//
|
|
// $LastChangedDate$
|
|
// $LastChangedRevision$
|
|
// $LastChangedBy$
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation; either version 2 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
//
|
|
// Using this software in any meaning (reading, learning, copying, compiling,
|
|
// running) means that you agree that the Author(s) is (are) not responsible
|
|
// for cost, loss of data or any harm that may be caused directly or indirectly
|
|
// by usage of this softare or this documentation. The usage of this software
|
|
// is on your own risk. The installation and usage (starting/running) of this
|
|
// software may allow other people or application to access your computer and
|
|
// any attached devices and is highly dependent on the configuration of the
|
|
// software which must be done by the user of the software; the author(s) is
|
|
// (are) also not responsible for proper configuration and usage of the
|
|
// software, even if provoked by documentation provided together with
|
|
// the software.
|
|
//
|
|
// Any changes to this file according to the GPL as documented in the file
|
|
// gpl.txt aside this file in the shipment you received can be done to the
|
|
// lines that follows this copyright notice here, but changes must not be
|
|
// done inside the copyright notive above. A re-distribution must contain
|
|
// the intact and unchanged copyright notice.
|
|
// Contributions and changes to the program code must be marked as such.
|
|
|
|
package de.anomic.yacy;
|
|
|
|
import java.io.BufferedReader;
|
|
import java.io.File;
|
|
import java.io.FileInputStream;
|
|
import java.io.IOException;
|
|
import java.io.InputStreamReader;
|
|
import java.text.ParseException;
|
|
import java.util.ArrayList;
|
|
import java.util.Date;
|
|
import java.util.HashMap;
|
|
import java.util.HashSet;
|
|
import java.util.Iterator;
|
|
|
|
import de.anomic.http.httpHeader;
|
|
import de.anomic.http.httpc;
|
|
import de.anomic.net.URL;
|
|
import de.anomic.plasma.plasmaSwitchboard;
|
|
import de.anomic.server.serverCore;
|
|
import de.anomic.server.serverDate;
|
|
import de.anomic.tools.disorderSet;
|
|
import de.anomic.tools.nxTools;
|
|
|
|
public class yacyPeerActions {
|
|
|
|
private yacySeedDB seedDB;
|
|
private plasmaSwitchboard sb;
|
|
private HashSet actions;
|
|
private HashMap userAgents;
|
|
private File superseedFile;
|
|
private String superseedURL;
|
|
public long juniorConnects;
|
|
public long seniorConnects;
|
|
public long principalConnects;
|
|
public long disconnects;
|
|
private int bootstrapLoadTimeout;
|
|
|
|
public yacyPeerActions(yacySeedDB seedDB, plasmaSwitchboard switchboard, File superseedFile, String superseedURL) {
|
|
this.seedDB = seedDB;
|
|
this.sb = switchboard;
|
|
this.actions = new HashSet();
|
|
this.userAgents = new HashMap();
|
|
this.superseedFile = superseedFile;
|
|
this.superseedURL = superseedURL;
|
|
this.superseedURL = superseedURL;
|
|
this.juniorConnects = 0;
|
|
this.seniorConnects = 0;
|
|
this.principalConnects = 0;
|
|
this.disconnects = 0;
|
|
this.bootstrapLoadTimeout = (int) switchboard.getConfigLong("bootstrapLoadTimeout", 6000);
|
|
}
|
|
|
|
public void deploy(yacyPeerAction action) {
|
|
actions.add(action);
|
|
}
|
|
|
|
public void updateMySeed() {
|
|
if (sb.getConfig("peerName", "anomic").equals("anomic")) {
|
|
// generate new peer name
|
|
sb.setConfig("peerName", yacySeed.makeDefaultPeerName());
|
|
}
|
|
seedDB.mySeed.put(yacySeed.NAME, sb.getConfig("peerName", "nameless"));
|
|
if ((serverCore.portForwardingEnabled) && (serverCore.portForwarding != null)) {
|
|
seedDB.mySeed.put(yacySeed.PORT, Integer.toString(serverCore.portForwarding.getPort()));
|
|
} else {
|
|
seedDB.mySeed.put(yacySeed.PORT, Integer.toString(serverCore.getPortNr(sb.getConfig("port", "8080"))));
|
|
}
|
|
|
|
long uptime = ((System.currentTimeMillis() - sb.getConfigLong("startupTime", 0)) / 1000);
|
|
long uptimediff = uptime - sb.getConfigLong("lastseedcheckUptime", 0); //TODO: Do not use the switchboard?
|
|
long indexedc = sb.getConfigLong("indexedc",0);
|
|
long indexedcdiff = indexedc - sb.getConfigLong("lastseedcheckIndexedc", 0);
|
|
if( uptimediff > 300 || sb.getConfigLong("lastseedcheckUptime", -1) == -1 ){
|
|
sb.setConfig("lastseedcheckUptime", uptime);
|
|
sb.setConfig("lastseedcheckIndexedc", indexedc);
|
|
}
|
|
|
|
//the speed of indexing (pages/minute) of the peer
|
|
if(uptimediff<=0){
|
|
//no timedelta. we cannot calculate a new value
|
|
}else if(indexedcdiff<=0){
|
|
//no indexing in the time...
|
|
seedDB.mySeed.put(yacySeed.ISPEED, Long.toString(0));
|
|
}else{
|
|
//set the PPM
|
|
seedDB.mySeed.put(yacySeed.ISPEED, Long.toString(Math.round((float)indexedcdiff / ((float)uptimediff/60f))));
|
|
}
|
|
if(uptime > 60)
|
|
sb.setConfig("totalPPM", Long.toString(indexedc / (uptime/60)));
|
|
else
|
|
sb.setConfig("totalPPM", Long.toString(indexedc / 1)); //no division by zero
|
|
|
|
seedDB.mySeed.put(yacySeed.UPTIME, Long.toString(uptime/60)); // the number of minutes that the peer is up in minutes/day (moving average MA30)
|
|
seedDB.mySeed.put(yacySeed.LCOUNT, Integer.toString(sb.wordIndex.loadedURL.size())); // the number of links that the peer has stored (LURL's)
|
|
seedDB.mySeed.put(yacySeed.NCOUNT, Integer.toString(sb.noticeURL.stackSize())); // the number of links that the peer has noticed, but not loaded (NURL's)
|
|
seedDB.mySeed.put(yacySeed.ICOUNT, Integer.toString(sb.cacheSizeMin())); // the minimum number of words that the peer has indexed (as it says)
|
|
seedDB.mySeed.put(yacySeed.SCOUNT, Integer.toString(seedDB.sizeConnected())); // the number of seeds that the peer has stored
|
|
seedDB.mySeed.put(yacySeed.CCOUNT, Double.toString(((int) ((seedDB.sizeConnected() + seedDB.sizeDisconnected() + seedDB.sizePotential()) * 60.0 / (uptime + 1.01)) * 100) / 100.0)); // the number of clients that the peer connects (as connects/hour)
|
|
seedDB.mySeed.put(yacySeed.VERSION, sb.getConfig("version", ""));
|
|
if (seedDB.mySeed.get(yacySeed.PEERTYPE,"").equals(yacySeed.PEERTYPE_PRINCIPAL)) {
|
|
// attach information about seed location
|
|
seedDB.mySeed.put("seedURL", sb.getConfig("seedURL", ""));
|
|
}
|
|
seedDB.mySeed.setFlagDirectConnect(true);
|
|
seedDB.mySeed.put(yacySeed.LASTSEEN, yacyCore.universalDateShortString(new Date()));
|
|
seedDB.mySeed.put(yacySeed.UTC, serverDate.UTCDiffString());
|
|
seedDB.mySeed.setFlagAcceptRemoteCrawl(sb.getConfig("crawlResponse", "").equals("true"));
|
|
seedDB.mySeed.setFlagAcceptRemoteIndex(sb.getConfig("allowReceiveIndex", "").equals("true"));
|
|
//mySeed.setFlagAcceptRemoteIndex(true);
|
|
}
|
|
|
|
public void saveMySeed() {
|
|
try {
|
|
seedDB.mySeed.save(seedDB.myOwnSeedFile);
|
|
} catch (IOException e) {}
|
|
}
|
|
|
|
public void loadSeedLists() {
|
|
// uses the superseed to initialize the database with known seeds
|
|
|
|
yacySeed ys;
|
|
String seedListFileURL;
|
|
URL url;
|
|
ArrayList seedList;
|
|
Iterator enu;
|
|
int lc;
|
|
int sc = seedDB.sizeConnected();
|
|
httpHeader header;
|
|
|
|
yacyCore.log.logInfo("BOOTSTRAP: " + sc + " seeds known from previous run");
|
|
|
|
// - load the superseed: a list of URLs
|
|
disorderSet superseed = loadSuperseed(superseedFile, superseedURL);
|
|
|
|
// - use the superseed to further fill up the seedDB
|
|
int ssc = 0;
|
|
for (int i = 0; i < superseed.size(); i++) {
|
|
if (Thread.currentThread().isInterrupted()) break;
|
|
seedListFileURL = (String) superseed.any();
|
|
if (
|
|
seedListFileURL.startsWith("http://") ||
|
|
seedListFileURL.startsWith("https://")
|
|
) {
|
|
// load the seed list
|
|
try {
|
|
httpHeader reqHeader = new httpHeader();
|
|
reqHeader.put(httpHeader.PRAGMA,"no-cache");
|
|
reqHeader.put(httpHeader.CACHE_CONTROL,"no-cache");
|
|
|
|
url = new URL(seedListFileURL);
|
|
header = httpc.whead(url, url.getHost(), this.bootstrapLoadTimeout, null, null, this.sb.remoteProxyConfig,reqHeader);
|
|
if ((header == null) || (header.lastModified() == null)) {
|
|
yacyCore.log.logInfo("BOOTSTRAP: seed-list URL " + seedListFileURL + " not available");
|
|
} else if ((header.age() > 86400000) && (ssc > 0)) {
|
|
yacyCore.log.logInfo("BOOTSTRAP: seed-list URL " + seedListFileURL + " too old (" + (header.age() / 86400000) + " days)");
|
|
} else {
|
|
ssc++;
|
|
seedList = nxTools.strings(httpc.wget(url, url.getHost(), this.bootstrapLoadTimeout, null, null, this.sb.remoteProxyConfig,reqHeader), "UTF-8");
|
|
enu = seedList.iterator();
|
|
lc = 0;
|
|
while (enu.hasNext()) {
|
|
ys = yacySeed.genRemoteSeed((String) enu.next(), null, true);
|
|
if ((ys != null) && (ys.isProper() == null) &&
|
|
((seedDB.mySeed == null) || (seedDB.mySeed.hash != ys.hash))) {
|
|
if (connectPeer(ys, false)) lc++;
|
|
//seedDB.writeMap(ys.hash, ys.getMap(), "init");
|
|
//System.out.println("BOOTSTRAP: received peer " + ys.get(yacySeed.NAME, "anonymous") + "/" + ys.getAddress());
|
|
//lc++;
|
|
}
|
|
}
|
|
yacyCore.log.logInfo("BOOTSTRAP: " + lc + " seeds from seed-list URL " + seedListFileURL + ", AGE=" + (header.age() / 3600000) + "h");
|
|
}
|
|
|
|
} catch (Exception e) {
|
|
// this is when wget fails; may be because of missing internet connection
|
|
// we do nothing here and go silently over it
|
|
yacyCore.log.logSevere("BOOTSTRAP: failed to load seeds from seed-list URL " + seedListFileURL);
|
|
}
|
|
}
|
|
}
|
|
yacyCore.log.logInfo("BOOTSTRAP: " + (seedDB.sizeConnected() - sc) + " new seeds while bootstraping.");
|
|
}
|
|
|
|
private disorderSet loadSuperseed(File local, String url) {
|
|
// this returns a list of locations where seed list-files can be found
|
|
disorderSet supsee = new disorderSet();
|
|
String line;
|
|
// read in local file
|
|
int lc = 0;
|
|
BufferedReader br = null;
|
|
try {
|
|
br = new BufferedReader(new InputStreamReader(new FileInputStream(local)));
|
|
while ((line = br.readLine()) != null) {
|
|
line = line.trim();
|
|
//System.out.println("one line in file:" + line);
|
|
if (line.length() > 0) supsee.add(line);
|
|
}
|
|
br.close();
|
|
lc = supsee.size();
|
|
yacyCore.log.logInfo("BOOTSTRAP: " + lc + " seed-list URLs from superseed file " + local.toString());
|
|
} catch (IOException e) {
|
|
//e.printStackTrace();
|
|
supsee = new disorderSet();
|
|
yacyCore.log.logInfo("BOOTSTRAP: failed to load seed-list URLs from superseed file " + local.toString() + ": " + e.getMessage());
|
|
} finally {
|
|
if (br!=null)try{br.close();}catch(Exception e){}
|
|
}
|
|
|
|
// read in remote file from url
|
|
try {
|
|
URL u = new URL(url);
|
|
ArrayList remote = nxTools.strings(httpc.wget(u, u.getHost(), 5000, null, null, this.sb.remoteProxyConfig), "UTF-8");
|
|
if ((remote != null) && (remote.size() > 0)) {
|
|
Iterator e = remote.iterator();
|
|
while (e.hasNext()) {
|
|
line = (String) e.next();
|
|
if (line != null) {
|
|
line = line.trim();
|
|
supsee.add(line);
|
|
}
|
|
}
|
|
}
|
|
yacyCore.log.logInfo("BOOTSTRAP: " + (supsee.size() - lc) + " seed-list URLs from superseed URL " + url);
|
|
} catch (Exception e) {
|
|
supsee = new disorderSet();
|
|
yacyCore.log.logInfo("BOOTSTRAP: failed to load seed-list URLs from superseed URL " + url + ": " + e.getMessage());
|
|
}
|
|
return supsee;
|
|
}
|
|
|
|
final synchronized private boolean connectPeer(yacySeed seed, boolean direct) {
|
|
// store a remote peer's seed
|
|
// returns true if the peer is new and previously unknown
|
|
String error;
|
|
if (seed == null) {
|
|
yacyCore.log.logSevere("connect: WRONG seed (NULL)");
|
|
return false;
|
|
} else if ((error = seed.isProper()) != null) {
|
|
yacyCore.log.logSevere("connect: WRONG seed (" + seed.getName() + "/" + seed.hash + "): " + error);
|
|
return false;
|
|
} else if ((seedDB.mySeed != null) && (seed.hash.equals(seedDB.mySeed.hash))) {
|
|
yacyCore.log.logInfo("connect: SELF reference " + seed.getAddress());
|
|
return false;
|
|
} else {
|
|
String peerType = seed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_VIRGIN);
|
|
// reject unqualified seeds
|
|
if ((peerType.equals(yacySeed.PEERTYPE_VIRGIN)) || (peerType.equals(yacySeed.PEERTYPE_JUNIOR))) {
|
|
yacyCore.log.logFine("connect: rejecting NOT QUALIFIED " + peerType + " seed " + seed.getName());
|
|
return false;
|
|
}
|
|
|
|
// we may store that seed, but still have different cases
|
|
if (seed.get(yacySeed.LASTSEEN, "").length() < 14) {
|
|
// hack for peers that do not have a LastSeen date
|
|
seed.put(yacySeed.LASTSEEN, "20040101000000");
|
|
}
|
|
|
|
// connection time
|
|
long nowUTC0Time = System.currentTimeMillis(); // is better to have this value in a variable for debugging
|
|
long ctimeUTC0 = seed.getLastSeenTime();
|
|
// maybe correct it slightly
|
|
/*
|
|
* if (ctime > yacyCore.universalTime()) { ctime = ((2 * ctime) +
|
|
* yacyCore.universalTime()) / 3; seed.put(yacySeed.LASTSEEN,
|
|
* yacyCore.shortFormatter.format(new Date(ctime))); }
|
|
*/
|
|
|
|
if (Math.abs(nowUTC0Time - ctimeUTC0) > 60 * 60 * 24 * 1000) {
|
|
// the new connection is out-of-age, we reject the connection
|
|
yacyCore.log.logFine("connect: rejecting out-dated peer '" + seed.getName() + "' from " + seed.getAddress() + "; nowUTC0=" + nowUTC0Time + ", seedUTC0=" + ctimeUTC0 + ", TimeDiff=" + serverDate.intervalToString(Math.abs(nowUTC0Time - ctimeUTC0)));
|
|
return false;
|
|
}
|
|
|
|
// disconnection time
|
|
long dtimeUTC0;
|
|
yacySeed disconnectedSeed = seedDB.getDisconnected(seed.hash);
|
|
if (disconnectedSeed == null) {
|
|
dtimeUTC0 = 0; // never disconnected: virtually disconnected maximum time ago
|
|
} else {
|
|
try {
|
|
dtimeUTC0 = yacyCore.parseUniversalDate(disconnectedSeed.get("disconnected", "20040101000000")).getTime() - seed.getUTCDiff();
|
|
} catch (java.text.ParseException e) {
|
|
dtimeUTC0 = 0;
|
|
}
|
|
}
|
|
|
|
if (direct) {
|
|
// remember the moment
|
|
// Date applies the local UTC offset, which is wrong
|
|
// we correct that by subtracting the local offset and adding
|
|
// the remote offset.
|
|
seed.setLastSeenTime();
|
|
seed.setFlagDirectConnect(true);
|
|
} else {
|
|
// set connection flag
|
|
if (Math.abs(nowUTC0Time - ctimeUTC0) > 120000) seed.setFlagDirectConnect(false); // 2 minutes
|
|
}
|
|
|
|
// update latest version number
|
|
if (seed.getVersion() > yacyCore.latestVersion) yacyCore.latestVersion = seed.getVersion();
|
|
|
|
// prepare to update
|
|
if (disconnectedSeed != null) {
|
|
// if the indirect connect aims to announce a peer that we know
|
|
// has been disconnected then we compare the dates:
|
|
// if the new peer has a LastSeen date, and that date is before
|
|
// the disconnection date, then we ignore the new peer
|
|
if (!(direct)) {
|
|
if (ctimeUTC0 < dtimeUTC0) {
|
|
// the disconnection was later, we reject the connection
|
|
yacyCore.log.logFine("connect: rejecting disconnected peer '" + seed.getName() + "' from " + seed.getAddress());
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// this is a return of a lost peer
|
|
yacyCore.log.logFine("connect: returned KNOWN " + peerType + " peer '" + seed.getName() + "' from " + seed.getAddress());
|
|
seedDB.addConnected(seed);
|
|
return true;
|
|
} else {
|
|
yacySeed connectedSeed = seedDB.getConnected(seed.hash);
|
|
if (connectedSeed != null) {
|
|
// the seed is known: this is an update
|
|
try {
|
|
// if the old LastSeen date is later then the other
|
|
// info, then we reject the info
|
|
if ((ctimeUTC0 < (yacyCore.parseUniversalDate(connectedSeed.get(yacySeed.LASTSEEN, "20040101000000")).getTime() - connectedSeed.getUTCDiff() + serverDate.UTCDiff())) && (!(direct))) {
|
|
yacyCore.log.logFine("connect: rejecting old info about peer '" + seed.getName() + "'");
|
|
return false;
|
|
}
|
|
|
|
if (connectedSeed.getName() != seed.getName()) {
|
|
// TODO: update seed name lookup cache
|
|
}
|
|
} catch (ParseException e) {
|
|
yacyCore.log.logFine("connect: rejecting wrong peer '" + seed.getName() + "' from " + seed.getAddress() + ". Cause: " + e.getMessage());
|
|
return false;
|
|
} catch (NumberFormatException e) {
|
|
yacyCore.log.logFine("connect: rejecting wrong peer '" + seed.getName() + "' from " + seed.getAddress() + ". Cause: " + e.getMessage());
|
|
return false;
|
|
}
|
|
yacyCore.log.logFine("connect: updated KNOWN " + ((direct) ? "direct " : "") + peerType + " peer '" + seed.getName() + "' from " + seed.getAddress());
|
|
seedDB.addConnected(seed);
|
|
return true;
|
|
} else {
|
|
// the seed is new
|
|
if (seed.get(yacySeed.IP, "127.0.0.1").equals(seedDB.mySeed.get(yacySeed.IP, "127.0.0.1"))) {
|
|
// seed from the same IP as the calling client: can be
|
|
// the case if there runs another one over a NAT
|
|
yacyCore.log.logFine("connect: saved NEW seed (myself IP) " + seed.getAddress());
|
|
} else {
|
|
// completely new seed
|
|
yacyCore.log.logFine("connect: saved NEW " + peerType + " peer '" + seed.getName() + "' from " + seed.getAddress());
|
|
}
|
|
if (peerType.equals(yacySeed.PEERTYPE_SENIOR))
|
|
seniorConnects++; // update statistics
|
|
if (peerType.equals(yacySeed.PEERTYPE_PRINCIPAL))
|
|
principalConnects++; // update statistics
|
|
seedDB.addConnected(seed);
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private final void disconnectPeer(yacySeed seed) {
|
|
// we do this if we did not get contact with the other peer
|
|
yacyCore.log.logFine("connect: no contact to a " + seed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_VIRGIN) + " peer '" + seed.getName() + "' at " + seed.getAddress());
|
|
synchronized (seedDB) {
|
|
if (!seedDB.hasDisconnected(seed.hash)) { disconnects++; }
|
|
seed.put("disconnected", yacyCore.universalDateShortString(new Date()));
|
|
seedDB.addDisconnected(seed); // update info
|
|
}
|
|
}
|
|
|
|
public boolean peerArrival(yacySeed peer, boolean direct) {
|
|
if (peer == null) return false;
|
|
boolean res = connectPeer(peer, direct);
|
|
// perform all actions if peer is effective new
|
|
if (res) {
|
|
Iterator i = actions.iterator();
|
|
while (i.hasNext()) ((yacyPeerAction) i.next()).processPeerArrival(peer, direct);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
public void peerDeparture(yacySeed peer) {
|
|
if (peer == null) return;
|
|
//System.out.println("PEER DEPARTURE:" + peer.toString());
|
|
disconnectPeer(peer);
|
|
// perform all actions
|
|
Iterator i = actions.iterator();
|
|
while (i.hasNext()) ((yacyPeerAction) i.next()).processPeerDeparture(peer);
|
|
}
|
|
|
|
public void peerPing(yacySeed peer) {
|
|
if (peer == null) return;
|
|
// this is called only if the peer has junior status
|
|
seedDB.addPotential(peer);
|
|
// perform all actions
|
|
Iterator i = actions.iterator();
|
|
while (i.hasNext()) ((yacyPeerAction) i.next()).processPeerPing(peer);
|
|
}
|
|
|
|
public void setUserAgent(String IP, String userAgent) {
|
|
userAgents.put(IP, userAgent);
|
|
}
|
|
|
|
public String getUserAgent(String IP) {
|
|
String userAgent = (String) userAgents.get(IP);
|
|
return (userAgent == null) ? "" : userAgent;
|
|
}
|
|
}
|