// yacyClient.java // ------------------------------------- // (C) by Michael Peter Christen; mc@yacy.net // first published on http://www.anomic.de // Frankfurt, Germany, 2004 // // $LastChangedDate$ // $LastChangedRevision$ // $LastChangedBy$ // // 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 notice 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.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.IOException; import java.io.InputStreamReader; import java.net.MalformedURLException; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.LinkedHashMap; import java.util.List; import java.util.Map; import java.util.SortedMap; import java.util.TreeMap; import java.util.regex.Pattern; import net.yacy.migration; import net.yacy.cora.document.ASCII; import net.yacy.cora.document.JSONArray; import net.yacy.cora.document.JSONException; import net.yacy.cora.document.JSONObject; import net.yacy.cora.document.JSONTokener; import net.yacy.cora.document.MultiProtocolURI; import net.yacy.cora.document.RSSFeed; import net.yacy.cora.document.RSSMessage; import net.yacy.cora.document.RSSReader; import net.yacy.cora.document.UTF8; import net.yacy.cora.protocol.ClientIdentification; import net.yacy.cora.protocol.Domains; import net.yacy.cora.protocol.http.HTTPClient; import net.yacy.cora.services.federated.opensearch.SRURSSConnector; import net.yacy.cora.services.federated.yacy.CacheStrategy; import net.yacy.kelondro.data.meta.URIMetadataRow; import net.yacy.kelondro.data.word.Word; import net.yacy.kelondro.data.word.WordReference; import net.yacy.kelondro.data.word.WordReferenceFactory; import net.yacy.kelondro.index.RowSpaceExceededException; import net.yacy.kelondro.logging.Log; import net.yacy.kelondro.order.Base64Order; import net.yacy.kelondro.order.Bitfield; import net.yacy.kelondro.rwi.Reference; import net.yacy.kelondro.rwi.ReferenceContainer; import net.yacy.kelondro.rwi.ReferenceContainerCache; import net.yacy.kelondro.util.ByteBuffer; import net.yacy.kelondro.util.EventTracker; import net.yacy.kelondro.util.FileUtils; import net.yacy.repository.Blacklist; import org.apache.http.entity.mime.content.ContentBody; import de.anomic.crawler.ResultURLs; import de.anomic.crawler.ResultURLs.EventOrigin; import de.anomic.search.ContentDomain; import de.anomic.search.QueryParams; import de.anomic.search.RankingProcess; import de.anomic.search.RankingProfile; import de.anomic.search.SearchEvent; import de.anomic.search.Segment; import de.anomic.search.Switchboard; import de.anomic.search.TextSnippet; import de.anomic.server.serverCore; import de.anomic.tools.crypt; import de.anomic.yacy.graphics.ProfilingGraph; import de.anomic.yacy.graphics.WebStructureGraph; import de.anomic.yacy.graphics.WebStructureGraph.HostReference; public final class yacyClient { private static byte[] postToFile(final yacySeed target, final String filename, final Map parts, final int timeout) throws IOException { return postToFile(target.getClusterAddress(), target.hash, filename, parts, timeout); } private static byte[] postToFile(final yacySeedDB seedDB, final String targetHash, final String filename, final Map parts, final int timeout) throws IOException { return postToFile(seedDB.targetAddress(targetHash), targetHash, filename, parts, timeout); } private static byte[] postToFile(final String targetAddress, final String targetPeerHash, final String filename, final Map parts, final int timeout) throws IOException { final HTTPClient httpClient = new HTTPClient(ClientIdentification.getUserAgent(), timeout); return httpClient.POSTbytes(new MultiProtocolURI("http://" + targetAddress + "/yacy/" + filename), yacySeed.b64Hash2hexHash(targetPeerHash) + ".yacyh", parts, false); } /** * this is called to enrich the seed information by * - own address (if peer is behind a nat/router) * - check peer type (virgin/junior/senior/principal) * * to do this, we send a 'Hello' to another peer * this carries the following information: * 'iam' - own hash * 'youare' - remote hash, to verify that we are correct * 'key' - a session key that the remote peer may use to answer * and the own seed string * we expect the following information to be send back: * - 'yourip' the ip of the connection peer (we) * - 'yourtype' the type of this peer that the other peer checked by asking for a specific word * and the remote seed string * * one exceptional failure case is when we know the other's peers hash, the other peers responds correctly * but they appear to be another peer by comparisment of the other peer's hash * this works of course only if we know the other peer's hash. * * @return the number of new seeds */ public static int hello(final yacySeed mySeed, final yacyPeerActions peerActions, final String address, final String otherHash, final String otherName) { Map result = null; final String salt = crypt.randomSalt(); try { // generate request final Map parts = yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), null, salt); parts.put("count", UTF8.StringBody("20")); parts.put("magic", UTF8.StringBody(Long.toString(yacyCore.magic))); parts.put("seed", UTF8.StringBody(mySeed.genSeedStr(salt))); // send request final long start = System.currentTimeMillis(); // final byte[] content = HTTPConnector.getConnector(MultiProtocolURI.yacybotUserAgent).post(new MultiProtocolURI("http://" + address + "/yacy/hello.html"), 30000, yacySeed.b64Hash2hexHash(otherHash) + ".yacyh", parts); final HTTPClient httpClient = new HTTPClient(ClientIdentification.getUserAgent(), 30000); final byte[] content = httpClient.POSTbytes(new MultiProtocolURI("http://" + address + "/yacy/hello.html"), yacySeed.b64Hash2hexHash(otherHash) + ".yacyh", parts, false); yacyCore.log.logInfo("yacyClient.hello thread '" + Thread.currentThread().getName() + "' contacted peer at " + address + ", received " + ((content == null) ? "null" : content.length) + " bytes, time = " + (System.currentTimeMillis() - start) + " milliseconds"); result = FileUtils.table(content); } catch (final Exception e) { if (Thread.currentThread().isInterrupted()) { yacyCore.log.logInfo("yacyClient.hello thread '" + Thread.currentThread().getName() + "' interrupted."); return -1; } yacyCore.log.logInfo("yacyClient.hello thread '" + Thread.currentThread().getName() + "', peer " + address + "; exception: " + e.getMessage()); // try again (go into loop) result = null; } if (result == null) { yacyCore.log.logInfo("yacyClient.hello result error: " + ((result == null) ? "result null" : ("result=" + result.toString()))); return -1; } // check consistency with expectation yacySeed otherPeer = null; String seed; if ((otherHash != null) && (otherHash.length() > 0) && ((seed = result.get("seed0")) != null)) { if (seed.length() > yacySeed.maxsize) { yacyCore.log.logInfo("hello/client 0: rejected contacting seed; too large (" + seed.length() + " > " + yacySeed.maxsize + ")"); } else { try { final int p = address.indexOf(':'); if (p < 0) return -1; final String host = Domains.dnsResolve(address.substring(0, p)).getHostAddress(); otherPeer = yacySeed.genRemoteSeed(seed, salt, false, host); if (!otherPeer.hash.equals(otherHash)) { yacyCore.log.logInfo("yacyClient.hello: consistency error: otherPeer.hash = " + otherPeer.hash + ", otherHash = " + otherHash); return -1; // no success } } catch (final IOException e) { yacyCore.log.logInfo("yacyClient.hello: consistency error: other seed bad:" + e.getMessage() + ", seed=" + seed); return -1; // no success } } } // set my own seed according to new information // we overwrite our own IP number only if (serverCore.useStaticIP) { mySeed.setIP(Switchboard.getSwitchboard().myPublicIP()); } else { final String myIP = result.get("yourip"); final String properIP = yacySeed.isProperIP(myIP); if (properIP == null) mySeed.setIP(myIP); } // change our seed-type String mytype = result.get(yacySeed.YOURTYPE); if (mytype == null) { mytype = ""; } final yacyAccessible accessible = new yacyAccessible(); if (mytype.equals(yacySeed.PEERTYPE_SENIOR)||mytype.equals(yacySeed.PEERTYPE_PRINCIPAL)) { accessible.IWasAccessed = true; if (mySeed.isPrincipal()) { mytype = yacySeed.PEERTYPE_PRINCIPAL; } } else { accessible.IWasAccessed = false; } accessible.lastUpdated = System.currentTimeMillis(); yacyCore.amIAccessibleDB.put(otherHash, accessible); /* * If we were reported as junior we have to check if your port forwarding channel is broken * If this is true we try to reconnect the sch channel to the remote server now. */ if (mytype.equalsIgnoreCase(yacySeed.PEERTYPE_JUNIOR)) { yacyCore.log.logInfo("yacyClient.hello: Peer '" + ((otherPeer==null)?"unknown":otherPeer.getName()) + "' reported us as junior."); } else if ((mytype.equalsIgnoreCase(yacySeed.PEERTYPE_SENIOR)) || (mytype.equalsIgnoreCase(yacySeed.PEERTYPE_PRINCIPAL))) { if (yacyCore.log.isFine()) yacyCore.log.logFine("yacyClient.hello: Peer '" + ((otherPeer==null)?"unknown":otherPeer.getName()) + "' reported us as " + mytype + ", accepted other peer."); } else { // wrong type report if (yacyCore.log.isFine()) yacyCore.log.logFine("yacyClient.hello: Peer '" + ((otherPeer==null)?"unknown":otherPeer.getName()) + "' reported us as " + mytype + ", rejecting other peer."); return -1; } if (mySeed.orVirgin().equals(yacySeed.PEERTYPE_VIRGIN)) mySeed.put(yacySeed.PEERTYPE, mytype); final String error = mySeed.isProper(true); if (error != null) { yacyCore.log.logWarning("yacyClient.hello mySeed error - not proper: " + error); return -1; } //final Date remoteTime = yacyCore.parseUniversalDate((String) result.get(yacySeed.MYTIME)); // read remote time // read the seeds that the peer returned and integrate them into own database int i = 0; int count = 0; String seedStr; yacySeed s; final int connectedBefore = peerActions.sizeConnected(); while ((seedStr = result.get("seed" + i++)) != null) { // integrate new seed into own database // the first seed, "seed0" is the seed of the responding peer if (seedStr.length() > yacySeed.maxsize) { yacyCore.log.logInfo("hello/client: rejected contacting seed; too large (" + seedStr.length() + " > " + yacySeed.maxsize + ")"); } else { try { if (i == 1) { final int p = address.indexOf(':'); if (p < 0) return -1; final String host = Domains.dnsResolve(address.substring(0, p)).getHostAddress(); s = yacySeed.genRemoteSeed(seedStr, salt, false, host); } else { s = yacySeed.genRemoteSeed(seedStr, salt, false, null); } if (peerActions.peerArrival(s, (i == 1))) count++; } catch (final IOException e) { yacyCore.log.logInfo("hello/client: rejected contacting seed; bad (" + e.getMessage() + ")"); } } } final int connectedAfter = peerActions.sizeConnected(); // update event tracker EventTracker.update(EventTracker.EClass.PEERPING, new ProfilingGraph.EventPing(mySeed.getName(), otherName, true, connectedAfter - connectedBefore), false); return count; } public static yacySeed querySeed(final yacySeed target, final String seedHash) { // prepare request final String salt = crypt.randomSalt(); // send request try { final Map parts = yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), target.hash, salt); parts.put("object", UTF8.StringBody("seed")); parts.put("env", UTF8.StringBody(seedHash)); final byte[] content = postToFile(target, "query.html", parts, 10000); final Map result = FileUtils.table(content); if (result == null || result.isEmpty()) { return null; } //final Date remoteTime = yacyCore.parseUniversalDate((String) result.get(yacySeed.MYTIME)); // read remote time return yacySeed.genRemoteSeed(result.get("response"), salt, false, target.getIP()); } catch (final Exception e) { yacyCore.log.logWarning("yacyClient.querySeed error:" + e.getMessage()); return null; } } public static int queryRWICount(final yacySeed target, final String wordHash) { // prepare request final String salt = crypt.randomSalt(); // send request try { final Map parts = yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), target.hash, salt); parts.put("object", UTF8.StringBody("rwicount")); parts.put("ttl", UTF8.StringBody("0")); parts.put("env", UTF8.StringBody(wordHash)); final byte[] content = postToFile(target, "query.html", parts, 5000); final Map result = FileUtils.table(content); if (result == null || result.isEmpty()) { return -1; } return Integer.parseInt(result.get("response")); } catch (final Exception e) { yacyCore.log.logWarning("yacyClient.queryRWICount error:" + e.getMessage()); return -1; } } /** * check the status of a remote peer * @param target * @return an array of two long: [0] is the count of urls, [1] is a magic */ public static long[] queryUrlCount(final yacySeed target) { if (target == null) return new long[]{-1, -1}; // prepare request final String salt = crypt.randomSalt(); // send request try { final Map parts = yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), target.hash, salt); parts.put("object", UTF8.StringBody("lurlcount")); parts.put("ttl", UTF8.StringBody("0")); parts.put("env", UTF8.StringBody("")); final byte[] content = postToFile(target, "query.html", parts, 5000); final Map result = FileUtils.table(content); if (result == null || result.isEmpty()) return new long[]{-1, -1}; final String resp = result.get("response"); if (resp == null) return new long[]{-1, -1}; String magic = result.get("magic"); if (magic == null) magic = "0"; try { return new long[]{Long.parseLong(resp), Long.parseLong(magic)}; } catch (final NumberFormatException e) { return new long[]{-1, -1}; } } catch (final IOException e) { if (yacyCore.log.isFine()) yacyCore.log.logFine("yacyClient.queryUrlCount error asking peer '" + target.getName() + "':" + e.toString()); return new long[]{-1, -1}; } } public static RSSFeed queryRemoteCrawlURLs(final yacySeedDB seedDB, final yacySeed target, final int maxCount, final long maxTime) { // returns a list of if (target == null) { return null; } final int targetCount = Integer.parseInt(target.get(yacySeed.RCOUNT, "0")); if (targetCount <= 0) { yacyCore.log.logWarning("yacyClient.queryRemoteCrawlURLs wrong peer '" + target.getName() + "' selected: not enough links available"); return null; } // prepare request final String salt = crypt.randomSalt(); // send request try { /* a long time-out is needed */ final Map parts = yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), target.hash, salt); parts.put("call", UTF8.StringBody("remotecrawl")); parts.put("count", UTF8.StringBody(Integer.toString(maxCount))); parts.put("time", UTF8.StringBody(Long.toString(maxTime))); // final byte[] result = HTTPConnector.getConnector(MultiProtocolURI.yacybotUserAgent).post(new MultiProtocolURI("http://" + target.getClusterAddress() + "/yacy/urls.xml"), (int) maxTime, target.getHexHash() + ".yacyh", parts); final HTTPClient httpClient = new HTTPClient(ClientIdentification.getUserAgent(), (int) maxTime); final byte[] result = httpClient.POSTbytes(new MultiProtocolURI("http://" + target.getClusterAddress() + "/yacy/urls.xml"), target.getHexHash() + ".yacyh", parts, false); final RSSReader reader = RSSReader.parse(RSSFeed.DEFAULT_MAXSIZE, result); if (reader == null) { yacyCore.log.logWarning("yacyClient.queryRemoteCrawlURLs failed asking peer '" + target.getName() + "': probably bad response from remote peer (1), reader == null"); target.put(yacySeed.RCOUNT, "0"); 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) //Log.logException(e); return null; } final RSSFeed feed = reader.getFeed(); if (feed == null) { // case where the rss reader does not understand the content yacyCore.log.logWarning("yacyClient.queryRemoteCrawlURLs failed asking peer '" + target.getName() + "': probably bad response from remote peer (2)"); //System.out.println("***DEBUG*** rss input = " + UTF8.String(result)); target.put(yacySeed.RCOUNT, "0"); 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) //Log.logException(e); return null; } // update number of remotely available links in seed target.put(yacySeed.RCOUNT, Integer.toString(Math.max(0, targetCount - feed.size()))); seedDB.update(target.hash, target); return feed; } catch (final IOException e) { yacyCore.log.logWarning("yacyClient.queryRemoteCrawlURLs error asking peer '" + target.getName() + "':" + e.toString()); return null; } } public static RSSFeed search(final yacySeed targetSeed, final String query, final CacheStrategy verify, final boolean global, final long timeout, final int startRecord, final int maximumRecords) throws IOException { final String address = (targetSeed == null || targetSeed == Switchboard.getSwitchboard().peers.mySeed()) ? "localhost:" + Switchboard.getSwitchboard().getConfig("port", "8090") : targetSeed.getClusterAddress(); final String urlBase = "http://" + address + "/yacysearch.rss"; return SRURSSConnector.loadSRURSS(urlBase, query, timeout, startRecord, maximumRecords, verify, global, null); } @SuppressWarnings("unchecked") public static int search( final yacySeed mySeed, final String wordhashes, final String excludehashes, final String urlhashes, final Pattern prefer, final Pattern filter, final Pattern snippet, final String language, final String sitehash, final String authorhash, final int count, final long time, final int maxDistance, final boolean global, final int partitions, final yacySeed target, final Segment indexSegment, final RankingProcess containerCache, final SearchEvent.SecondarySearchSuperviser secondarySearchSuperviser, final Blacklist blacklist, final RankingProfile rankingProfile, final Bitfield constraint ) { // send a search request to peer with remote Hash // INPUT: // iam : complete seed of the requesting peer // youare : seed hash of the target peer, used for testing network stability // key : transmission key for response // search : a list of search words // hsearch : a string of word hashes // fwdep : forward depth. if "0" then peer may NOT ask another peer for more results // fwden : forward deny, a list of seed hashes. They may NOT be target of forward hopping // count : maximum number of wanted results // global : if "true", then result may consist of answers from other peers // partitions : number of remote peers that are asked (for evaluation of QPM) // duetime : maximum time that a peer should spent to create a result final long timestamp = System.currentTimeMillis(); SearchResult result; try { result = new SearchResult( yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), target.hash, crypt.randomSalt()), mySeed, wordhashes, excludehashes, urlhashes, prefer, filter, snippet, language, sitehash, authorhash, count, time, maxDistance, global, partitions, target.getHexHash() + ".yacyh", target.getClusterAddress(), secondarySearchSuperviser, rankingProfile, constraint); } catch (final IOException e) { yacyCore.log.logInfo("SEARCH failed, Peer: " + target.hash + ":" + target.getName() + " (" + e.getMessage() + ")"); //yacyCore.peerActions.peerDeparture(target, "search request to peer created io exception: " + e.getMessage()); return -1; } // computation time final long totalrequesttime = System.currentTimeMillis() - timestamp; // create containers final int words = wordhashes.length() / Word.commonHashLength; assert words > 0 : "wordhashes = " + wordhashes; final ReferenceContainer[] container = new ReferenceContainer[words]; for (int i = 0; i < words; i++) { try { container[i] = ReferenceContainer.emptyContainer(Segment.wordReferenceFactory, ASCII.getBytes(wordhashes.substring(i * Word.commonHashLength, (i + 1) * Word.commonHashLength)), count); } catch (final RowSpaceExceededException e) { Log.logException(e); return -1; } } // insert results to containers int term = count; for (final URIMetadataRow urlEntry: result.links) { if (term-- <= 0) break; // do not process more that requested (in case that evil peers fill us up with rubbish) // get one single search result if (urlEntry == null) continue; assert (urlEntry.hash().length == 12) : "urlEntry.hash() = " + ASCII.String(urlEntry.hash()); if (urlEntry.hash().length != 12) continue; // bad url hash final URIMetadataRow.Components metadata = urlEntry.metadata(); if (metadata == null) continue; if (blacklist.isListed(Blacklist.BLACKLIST_SEARCH, metadata.url())) { if (yacyCore.log.isInfo()) yacyCore.log.logInfo("remote search: filtered blacklisted url " + metadata.url() + " from peer " + target.getName()); continue; // block with backlist } final String urlRejectReason = Switchboard.getSwitchboard().crawlStacker.urlInAcceptedDomain(metadata.url()); if (urlRejectReason != null) { if (yacyCore.log.isInfo()) yacyCore.log.logInfo("remote search: rejected url '" + metadata.url() + "' (" + urlRejectReason + ") from peer " + target.getName()); continue; // reject url outside of our domain } // save the url entry final Reference entry = urlEntry.word(); if (entry == null) { if (yacyCore.log.isWarning()) yacyCore.log.logWarning("remote search: 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 if (!Base64Order.enhancedCoder.equal(entry.urlhash(), urlEntry.hash())) { yacyCore.log.logInfo("remote search: url-hash " + ASCII.String(urlEntry.hash()) + " does not belong to word-attached-hash " + ASCII.String(entry.urlhash()) + "; url = " + metadata.url() + " from peer " + target.getName()); continue; // spammed } // passed all checks, store url try { indexSegment.urlMetadata().store(urlEntry); ResultURLs.stack(urlEntry, mySeed.hash.getBytes(), UTF8.getBytes(target.hash), EventOrigin.QUERIES); } catch (final IOException e) { yacyCore.log.logWarning("could not store search result", e); continue; // db-error } if (urlEntry.snippet() != null && urlEntry.snippet().length() > 0 && !urlEntry.snippet().equals("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 '" + urlEntry.snippet() + "'"); TextSnippet.snippetsCache.put(wordhashes, ASCII.String(urlEntry.hash()), urlEntry.snippet()); } // add the url entry to the word indexes for (int m = 0; m < words; m++) { try { container[m].add(entry); } catch (final RowSpaceExceededException e) { Log.logException(e); break; } } } // store remote result to local result container // insert one container into the search result buffer // one is enough, only the references are used, not the word containerCache.add(container[0], false, target.getName() + "/" + target.hash, result.joincount, true); // insert the containers to the index for (final ReferenceContainer c: container) try { indexSegment.termIndex().add(c); } catch (final Exception e) { Log.logException(e); } final boolean thisIsASecondarySearch = urlhashes.length() > 0; assert !thisIsASecondarySearch || secondarySearchSuperviser == null; yacyCore.log.logInfo("remote search: peer " + target.getName() + " sent " + container[0].size() + "/" + result.joincount + " references for " + (thisIsASecondarySearch ? "a secondary search" : "joined word queries")); // integrate remote top-words/topics if (result.references != null && result.references.length > 0) { yacyCore.log.logInfo("remote search: peer " + target.getName() + " sent " + result.references.length + " topics"); // add references twice, so they can be counted (must have at least 2 entries) synchronized (containerCache) { containerCache.addTopic(result.references); containerCache.addTopic(result.references); } } // read index abstract if (secondarySearchSuperviser != null) { String wordhash; String whacc = ""; ByteBuffer ci; int ac = 0; for (final Map.Entry abstractEntry: result.indexabstract.entrySet()) { try { ci = new ByteBuffer(abstractEntry.getValue()); wordhash = ASCII.String(abstractEntry.getKey()); } catch (final OutOfMemoryError e) { Log.logException(e); continue; } whacc += wordhash; secondarySearchSuperviser.addAbstract(wordhash, WordReferenceFactory.decompressIndex(ci, target.hash)); ac++; } if (ac > 0) { secondarySearchSuperviser.commitAbstract(); yacyCore.log.logInfo("remote search: peer " + target.getName() + " sent " + ac + " index abstracts for words "+ whacc); } } // generate statistics if (yacyCore.log.isFine()) yacyCore.log.logFine( "SEARCH " + result.urlcount + " URLS FROM " + target.hash + ":" + target.getName() + ", searchtime=" + result.searchtime + ", netdelay=" + (totalrequesttime - result.searchtime) + ", references=" + result.references); return result.urlcount; } public static class SearchResult { public String version; // version : application version of responder public String uptime; // uptime : uptime in seconds of responder public String fwhop; // hops (depth) of forwards that had been performed to construct this result public String fwsrc; // peers that helped to construct this result public String fwrec; // peers that would have helped to construct this result (recommendations) public int urlcount; // number of returned LURL's for this search public int joincount; // public Map indexcount; // public long searchtime; // time that the peer actually spent to create the result public String[] references; // search hints, the top-words public List links; // LURLs of search public Map indexabstract; // index abstracts, a collection of url-hashes per word public SearchResult( final Map parts, final yacySeed mySeed, final String wordhashes, final String excludehashes, final String urlhashes, final Pattern prefer, final Pattern filter, final Pattern snippet, final String language, final String sitehash, final String authorhash, final int count, final long time, final int maxDistance, final boolean global, final int partitions, final String hostname, final String hostaddress, final SearchEvent.SecondarySearchSuperviser secondarySearchSuperviser, final RankingProfile rankingProfile, final Bitfield constraint) throws IOException { // send a search request to peer with remote Hash // INPUT: // iam : complete seed of the requesting peer // youare : seed hash of the target peer, used for testing network stability // key : transmission key for response // search : a list of search words // hsearch : a string of word hashes // fwdep : forward depth. if "0" then peer may NOT ask another peer for more results // fwden : forward deny, a list of seed hashes. They may NOT be target of forward hopping // count : maximum number of wanted results // global : if "true", then result may consist of answers from other peers // partitions : number of remote peers that are asked (for evaluation of QPM) // duetime : maximum time that a peer should spent to create a result // send request Map resultMap = null; String key = ""; final ContentBody keyBody = parts.get("key"); if (keyBody != null) { final ByteArrayOutputStream baos = new ByteArrayOutputStream(20); keyBody.writeTo(baos); key = baos.toString(); } parts.put("myseed", UTF8.StringBody((mySeed == null) ? "" : mySeed.genSeedStr(key))); parts.put("count", UTF8.StringBody(Integer.toString(Math.max(10, count)))); parts.put("time", UTF8.StringBody(Long.toString(Math.max(3000, time)))); parts.put("resource", UTF8.StringBody(((global) ? "global" : "local"))); parts.put("partitions", UTF8.StringBody(Integer.toString(partitions))); parts.put("query", UTF8.StringBody(wordhashes)); parts.put("exclude", UTF8.StringBody(excludehashes)); parts.put("duetime", UTF8.StringBody("1000")); parts.put("urls", UTF8.StringBody(urlhashes)); parts.put("prefer", UTF8.StringBody(prefer.pattern())); parts.put("filter", UTF8.StringBody(filter.pattern())); parts.put("snippet", UTF8.StringBody(snippet.pattern())); parts.put("language", UTF8.StringBody(language)); parts.put("sitehash", UTF8.StringBody(sitehash)); parts.put("authorhash", UTF8.StringBody(authorhash)); parts.put("ttl", UTF8.StringBody("0")); parts.put("maxdist", UTF8.StringBody(Integer.toString(maxDistance))); parts.put("profile", UTF8.StringBody(crypt.simpleEncode(rankingProfile.toExternalString()))); parts.put("constraint", UTF8.StringBody((constraint == null) ? "" : constraint.exportB64())); if (secondarySearchSuperviser != null) parts.put("abstracts", UTF8.StringBody("auto")); // resultMap = FileUtils.table(HTTPConnector.getConnector(MultiProtocolURI.yacybotUserAgent).post(new MultiProtocolURI("http://" + hostaddress + "/yacy/search.html"), 60000, hostname, parts)); //resultMap = FileUtils.table(HTTPConnector.getConnector(MultiProtocolURI.crawlerUserAgent).post(new MultiProtocolURI("http://" + target.getClusterAddress() + "/yacy/search.html"), 60000, target.getHexHash() + ".yacyh", parts)); final HTTPClient httpClient = new HTTPClient(ClientIdentification.getUserAgent(), 60000); resultMap = FileUtils.table(httpClient.POSTbytes(new MultiProtocolURI("http://" + hostaddress + "/yacy/search.html"), hostname, parts, false)); // evaluate request result if (resultMap == null || resultMap.isEmpty()) throw new IOException("resultMap is NULL"); try { this.searchtime = Integer.parseInt(resultMap.get("searchtime")); } catch (final NumberFormatException e) { throw new IOException("wrong output format for searchtime: " + e.getMessage() + ", map = " + resultMap.toString()); } try { this.joincount = Integer.parseInt(resultMap.get("joincount")); // the complete number of hits at remote site } catch (final NumberFormatException e) { throw new IOException("wrong output format for joincount: " + e.getMessage()); } try { this.urlcount = Integer.parseInt(resultMap.get("count")); // the number of hits that are returned in the result list } catch (final NumberFormatException e) { throw new IOException("wrong output format for count: " + e.getMessage()); } this.fwhop = resultMap.get("fwhop"); this.fwsrc = resultMap.get("fwsrc"); this.fwrec = resultMap.get("fwrec"); // scan the result map for entries with special prefix this.indexcount = new TreeMap(Base64Order.enhancedCoder); this.indexabstract = new TreeMap(Base64Order.enhancedCoder); for (final Map.Entry entry: resultMap.entrySet()) { if (entry.getKey().startsWith("indexcount.")) { this.indexcount.put(UTF8.getBytes(entry.getKey().substring(11)), Integer.parseInt(entry.getValue())); } if (entry.getKey().startsWith("indexabstract.")) { this.indexabstract.put(UTF8.getBytes(entry.getKey().substring(14)), entry.getValue()); } } this.references = resultMap.get("references").split(","); this.links = new ArrayList(this.urlcount); for (int n = 0; n < this.urlcount; n++) { // get one single search result final String resultLine = resultMap.get("resource" + n); if (resultLine == null) continue; final URIMetadataRow urlEntry = URIMetadataRow.importEntry(resultLine); if (urlEntry == null) continue; this.links.add(urlEntry); } } } public static Map permissionMessage(final yacySeedDB seedDB, final String targetHash) { // ask for allowed message size and attachement size // if this replies null, the peer does not answer // prepare request final String salt = crypt.randomSalt(); // send request try { final Map parts = yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), targetHash, salt); parts.put("process", UTF8.StringBody("permission")); final byte[] content = postToFile(seedDB, targetHash, "message.html", parts, 5000); final Map result = FileUtils.table(content); return result; } catch (final Exception e) { // most probably a network time-out exception yacyCore.log.logWarning("yacyClient.permissionMessage error:" + e.getMessage()); return null; } } public static Map postMessage(final yacySeedDB seedDB, final String targetHash, final String subject, final byte[] message) { // this post a message to the remote message board // prepare request final String salt = crypt.randomSalt(); // send request try { final Map parts = yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), targetHash, salt); parts.put("process", UTF8.StringBody("post")); parts.put("myseed", UTF8.StringBody(seedDB.mySeed().genSeedStr(salt))); parts.put("subject", UTF8.StringBody(subject)); parts.put("message", UTF8.StringBody(message)); final byte[] content = postToFile(seedDB, targetHash, "message.html", parts, 20000); final Map result = FileUtils.table(content); return result; } catch (final Exception e) { yacyCore.log.logWarning("yacyClient.postMessage error:" + e.getMessage()); return null; } } public static Map crawlReceipt(final yacySeed mySeed, final yacySeed target, final String process, final String result, final String reason, final URIMetadataRow entry, final String wordhashes) { assert (target != null); assert (mySeed != null); assert (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 String salt = crypt.randomSalt(); // determining target address final String address = target.getClusterAddress(); if (address == null) { return null; } // send request try { // prepare request final Map parts = yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), target.hash, salt); parts.put("process", UTF8.StringBody(process)); parts.put("urlhash", UTF8.StringBody(((entry == null) ? "" : ASCII.String(entry.hash())))); parts.put("result", UTF8.StringBody(result)); parts.put("reason", UTF8.StringBody(reason)); parts.put("wordh", UTF8.StringBody(wordhashes)); parts.put("lurlEntry", UTF8.StringBody(((entry == null) ? "" : crypt.simpleEncode(entry.toString(), salt)))); // send request // final byte[] content = HTTPConnector.getConnector(MultiProtocolURI.yacybotUserAgent).post(new MultiProtocolURI("http://" + address + "/yacy/crawlReceipt.html"), 10000, target.getHexHash() + ".yacyh", parts); final HTTPClient httpClient = new HTTPClient(ClientIdentification.getUserAgent(), 10000); final byte[] content = httpClient.POSTbytes(new MultiProtocolURI("http://" + address + "/yacy/crawlReceipt.html"), target.getHexHash() + ".yacyh", parts, false); return FileUtils.table(content); } catch (final Exception e) { // most probably a network time-out exception yacyCore.log.logWarning("yacyClient.crawlReceipt error:" + e.getMessage()); return null; } } /** * transfer the index. If the transmission fails, return a string describing the cause. * If everything is ok, return null. * @param targetSeed * @param indexes * @param urlCache * @param gzipBody * @param timeout * @return */ public static String transferIndex( final yacySeed targetSeed, final ReferenceContainerCache indexes, final SortedMap urlCache, final boolean gzipBody, final int timeout) { // check if we got all necessary urls in the urlCache (only for debugging) Iterator eenum; Reference entry; for (final ReferenceContainer ic: indexes) { eenum = ic.entries(); while (eenum.hasNext()) { entry = eenum.next(); if (urlCache.get(entry.urlhash()) == null) { if (yacyCore.log.isFine()) yacyCore.log.logFine("DEBUG transferIndex: to-send url hash '" + ASCII.String(entry.urlhash()) + "' is not contained in urlCache"); } } } // transfer the RWI without the URLs Map in = transferRWI(targetSeed, indexes, gzipBody, timeout); if (in == null) { return "no connection from transferRWI"; } String result = in.get("result"); if (result == null) { return "no result from transferRWI"; } if (!(result.equals("ok"))) { return result; } // in now contains a list of unknown hashes String uhss = in.get("unknownURL"); if (uhss == null) { return "no unknownURL tag in response"; } yacyChannel.channels(yacyChannel.DHTSEND).addMessage(new RSSMessage("Sent " + indexes.size() + " RWIs to " + targetSeed.getName(), "", targetSeed.hash)); uhss = uhss.trim(); if (uhss.length() == 0 || uhss.equals(",")) { return null; } // all url's known, we are ready here final String[] uhs = uhss.split(","); if (uhs.length == 0) { return null; } // all url's known // extract the urlCache from the result final URIMetadataRow[] urls = new URIMetadataRow[uhs.length]; for (int i = 0; i < uhs.length; i++) { urls[i] = urlCache.get(ASCII.getBytes(uhs[i])); if (urls[i] == null) { if (yacyCore.log.isFine()) yacyCore.log.logFine("DEBUG transferIndex: requested url hash '" + uhs[i] + "', unknownURL='" + uhss + "'"); } } in = transferURL(targetSeed, urls, gzipBody, timeout); if (in == null) { return "no connection from transferURL"; } result = in.get("result"); if (result == null) { return "no result from transferURL"; } if (!result.equals("ok")) { return result; } yacyChannel.channels(yacyChannel.DHTSEND).addMessage(new RSSMessage("Sent " + uhs.length + " URLs to peer " + targetSeed.getName(), "", targetSeed.hash)); return null; } private static Map transferRWI( final yacySeed targetSeed, final ReferenceContainerCache indexes, boolean gzipBody, final int timeout) { final String address = targetSeed.getPublicAddress(); if (address == null) { yacyCore.log.logWarning("no address for transferRWI"); return null; } // prepare post values final String salt = crypt.randomSalt(); // enabling gzip compression for post request body if (gzipBody && (targetSeed.getVersion() < yacyVersion.YACY_SUPPORTS_GZIP_POST_REQUESTS_CHUNKED)) { gzipBody = false; } int indexcount = 0; final StringBuilder entrypost = new StringBuilder(indexes.size() * 73); Iterator eenum; Reference entry; for (final ReferenceContainer ic: indexes) { eenum = ic.entries(); while (eenum.hasNext()) { entry = eenum.next(); entrypost.append(ASCII.String(ic.getTermHash())) .append(entry.toPropertyForm()) .append(serverCore.CRLF_STRING); indexcount++; } } if (indexcount == 0) { // nothing to do but everything ok final Map result = new HashMap(2); result.put("result", "ok"); result.put("unknownURL", ""); return result; } try { final Map parts = yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), targetSeed.hash, salt); parts.put("wordc", UTF8.StringBody(Integer.toString(indexes.size()))); parts.put("entryc", UTF8.StringBody(Integer.toString(indexcount))); parts.put("indexes", UTF8.StringBody(entrypost.toString())); // final byte[] content = HTTPConnector.getConnector(MultiProtocolURI.yacybotUserAgent).post(new MultiProtocolURI("http://" + address + "/yacy/transferRWI.html"), timeout, targetSeed.getHexHash() + ".yacyh", parts, gzipBody); final HTTPClient httpClient = new HTTPClient(ClientIdentification.getUserAgent(), timeout); final byte[] content = httpClient.POSTbytes(new MultiProtocolURI("http://" + address + "/yacy/transferRWI.html"), targetSeed.getHexHash() + ".yacyh", parts, gzipBody); final Iterator v = FileUtils.strings(content); // this should return a list of urlhashes that are unknown final Map result = FileUtils.table(v); // return the transfered index data in bytes (for debugging only) result.put("indexPayloadSize", Integer.toString(entrypost.length())); return result; } catch (final Exception e) { yacyCore.log.logInfo("yacyClient.transferRWI to " + address + " error: " + e.getMessage()); return null; } } private static Map transferURL(final yacySeed targetSeed, final URIMetadataRow[] urls, boolean gzipBody, final 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 String salt = crypt.randomSalt(); final Map parts = yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), targetSeed.hash, salt); // enabling gzip compression for post request body if (gzipBody && (targetSeed.getVersion() < yacyVersion.YACY_SUPPORTS_GZIP_POST_REQUESTS_CHUNKED)) { gzipBody = false; } String resource; int urlc = 0; int urlPayloadSize = 0; for (final URIMetadataRow url : urls) { if (url != null) { resource = url.toString(); //System.out.println("*** DEBUG resource = " + resource); if (resource != null && resource.indexOf(0) == -1) { parts.put("url" + urlc, UTF8.StringBody(resource)); urlPayloadSize += resource.length(); urlc++; } } } try { parts.put("urlc", UTF8.StringBody(Integer.toString(urlc))); // final byte[] content = HTTPConnector.getConnector(MultiProtocolURI.yacybotUserAgent).post(new MultiProtocolURI("http://" + address + "/yacy/transferURL.html"), timeout, targetSeed.getHexHash() + ".yacyh", parts, gzipBody); final HTTPClient httpClient = new HTTPClient(ClientIdentification.getUserAgent(), timeout); final byte[] content = httpClient.POSTbytes(new MultiProtocolURI("http://" + address + "/yacy/transferURL.html"), targetSeed.getHexHash() + ".yacyh", parts, gzipBody); final Iterator v = FileUtils.strings(content); final Map result = FileUtils.table(v); // return the transfered url data in bytes (for debugging only) result.put("urlPayloadSize", Integer.toString(urlPayloadSize)); return result; } catch (final Exception e) { yacyCore.log.logWarning("yacyClient.transferURL to " + address + " error: " + e.getMessage()); return null; } } public static Map getProfile(final yacySeed targetSeed) { // ReferenceContainerCache ref = loadIDXHosts(targetSeed); // this post a message to the remote message board final String salt = crypt.randomSalt(); String address = targetSeed.getClusterAddress(); if (address == null) { address = "localhost:8090"; } try { final Map parts = yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), targetSeed.hash, salt); // final byte[] content = HTTPConnector.getConnector(MultiProtocolURI.yacybotUserAgent).post(new MultiProtocolURI("http://" + address + "/yacy/profile.html"), 5000, targetSeed.getHexHash() + ".yacyh", parts); final HTTPClient httpclient = new HTTPClient(ClientIdentification.getUserAgent(), 5000); final byte[] content = httpclient.POSTbytes(new MultiProtocolURI("http://" + address + "/yacy/profile.html"), targetSeed.getHexHash() + ".yacyh", parts, false); return FileUtils.table(content); } catch (final Exception e) { yacyCore.log.logWarning("yacyClient.getProfile error:" + e.getMessage()); return null; } } public static ReferenceContainerCache loadIDXHosts(final yacySeed target) { final ReferenceContainerCache index = new ReferenceContainerCache(WebStructureGraph.hostReferenceFactory, Base64Order.enhancedCoder, 6); // check if the host supports this protocol if (target.getRevision() < migration.IDX_HOST) { // if the protocol is not supported then we just return an empty host reference container return index; } // prepare request final String salt = crypt.randomSalt(); // send request try { final Map parts = yacyNetwork.basicRequestParts(Switchboard.getSwitchboard(), target.hash, salt); parts.put("object", UTF8.StringBody("host")); final byte[] content = postToFile(target, "idx.json", parts, 30000); if (content == null || content.length == 0) { yacyCore.log.logWarning("yacyClient.loadIDXHosts error: empty result"); return null; } final JSONObject json = new JSONObject(new JSONTokener(new InputStreamReader(new ByteArrayInputStream(content)))); /* the json has the following form: { "version":"#[version]#", "uptime":"#[uptime]#", "name":"#[name]#", "rowdef":"#[rowdef]#", "idx":{ #{list}#"#[term]#":[#[references]#]#(comma)#::,#(/comma)# #{/list}# } } */ final JSONObject idx = json.getJSONObject("idx"); // iterate over all references final Iterator termIterator = idx.keys(); String term; while (termIterator.hasNext()) { term = termIterator.next(); final JSONArray references = idx.getJSONArray(term); // iterate until we get an exception or null int c = 0; String reference; final ReferenceContainer referenceContainer = new ReferenceContainer(WebStructureGraph.hostReferenceFactory, UTF8.getBytes(term)); try { while ((reference = references.getString(c++)) != null) { //System.out.println("REFERENCE: " + reference); referenceContainer.add(new HostReference(reference)); } } catch (final JSONException e) {} // this finishes the iteration index.add(referenceContainer); } return index; } catch (final Exception e) { yacyCore.log.logWarning("yacyClient.loadIDXHosts error:" + e.getMessage()); return index; } } public static void main(final String[] args) { if (args.length > 2) { // search a remote peer. arguments: // first arg: path to application home // second arg: address of target peer // third arg: search word or file name with list of search words // i.e. /Data/workspace1/yacy/ localhost:8090 /Data/workspace1/yacy/test/words/searchtest.words System.out.println("yacyClient Test"); final File searchwordfile = new File(args[2]); final List searchlines = new ArrayList(); if (searchwordfile.exists()) { Iterator i; try { i = FileUtils.strings(FileUtils.read(searchwordfile)); while (i.hasNext()) searchlines.add(i.next()); } catch (final IOException e) { e.printStackTrace(); System.exit(-1); } } else { searchlines.add(args[2]); } for (final String line: searchlines) { final byte[] wordhashe = ASCII.getBytes(QueryParams.hashSet2hashString(Word.words2hashesHandles(QueryParams.cleanQuery(line)[0]))); final long time = System.currentTimeMillis(); SearchResult result; try { result = new SearchResult( yacyNetwork.basicRequestParts((String) null, (String) null, "freeworld"), null, // sb.peers.mySeed(), ASCII.String(wordhashe), "", // excludehashes, "", // urlhashes, QueryParams.matchnothing_pattern, // prefer, QueryParams.catchall_pattern, // filter, QueryParams.catchall_pattern, // snippet, "", // language, "", // sitehash, "", // authorhash, 10, // count, 3000, // time, 1000, // maxDistance, true, //global, 16, // partitions, "", args[1], null, //secondarySearchSuperviser, new RankingProfile(ContentDomain.TEXT), // rankingProfile, null // constraint); ); for (final URIMetadataRow link: result.links) { System.out.println(link.metadata().url().toNormalform(true, false)); System.out.println(link.snippet()); } } catch (final IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } System.out.println("Search Time: " + (System.currentTimeMillis() - time)); } System.exit(0); } else if(args.length == 1) { System.out.println("wput Test"); // connection params MultiProtocolURI url = null; try { url = new MultiProtocolURI(args[0]); } catch (final MalformedURLException e) { Log.logException(e); } if (url == null) { System.exit(1); return; } final String vhost = url.getHost(); final int timeout = 10000; // new data final Map newpost = new LinkedHashMap(); newpost.put("process", UTF8.StringBody("permission")); newpost.put("purpose", UTF8.StringBody("crcon")); byte[] res; try { // res = HTTPConnector.getConnector(MultiProtocolURI.yacybotUserAgent).post(url, timeout, vhost, newpost, true); final HTTPClient httpClient = new HTTPClient(ClientIdentification.getUserAgent(), timeout); res = httpClient.POSTbytes(url, vhost, newpost, true); System.out.println(UTF8.String(res)); } catch (final IOException e1) { Log.logException(e1); } } try { net.yacy.cora.protocol.http.HTTPClient.closeConnectionManager(); } catch (final InterruptedException e) { Log.logException(e); } } }