mirror of
https://github.com/yacy/yacy_search_server.git
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8451cfdef8
This is a complete re-design of the serverObjects data structure which holds all data that is submitted during http post requests to YaCy. Before the change, post attributes had been stored to Strings which cannot be larger than 2GB. Furthermore, byte[] uploads had been encoded to b64 Strings to fit into this data structure. Those strings are now replaced by a new data structure, ChunkedBytes which is an object that can hold more than 2GB data using a list of byte[] objects. All required streaming functions are implemented and streaming from http post upload into this data structure works. The b64 encoding has been removed. The ZIM and WARC reader make use of the new data structure.
350 lines
17 KiB
Java
350 lines
17 KiB
Java
// Surftips.java
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// (C) 2006 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 2006 on http://www.anomic.de
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//
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// This is a part of YaCy, a peer-to-peer based web search engine
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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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// LICENSE
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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 net.yacy.htroot;
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import java.net.MalformedURLException;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Set;
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import net.yacy.cora.date.GenericFormatter;
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import net.yacy.cora.document.encoding.UTF8;
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import net.yacy.cora.document.id.DigestURL;
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import net.yacy.cora.order.NaturalOrder;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.cora.sorting.ConcurrentScoreMap;
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import net.yacy.cora.sorting.ScoreMap;
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import net.yacy.kelondro.index.Row;
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import net.yacy.kelondro.index.Row.Entry;
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import net.yacy.peers.NewsDB;
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import net.yacy.peers.NewsPool;
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import net.yacy.peers.Seed;
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import net.yacy.repository.Blacklist.BlacklistType;
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import net.yacy.search.Switchboard;
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import net.yacy.server.serverObjects;
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import net.yacy.server.serverSwitch;
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import net.yacy.utils.crypt;
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import net.yacy.utils.nxTools;
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public class Surftips {
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public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
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final Switchboard sb = (Switchboard) env;
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final serverObjects prop = new serverObjects();
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final boolean authenticated = sb.adminAuthenticated(header) >= 2;
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final int display = ((post == null) || (!authenticated)) ? 0 : post.getInt("display", 0);
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prop.put("display", display);
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final boolean showScore = ((post != null) && (post.containsKey("score")));
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// access control
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boolean publicPage = sb.getConfigBool("publicSurftips", true);
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final boolean authorizedAccess = sb.verifyAuthentication(header);
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if ((post != null) && (post.containsKey("publicPage"))) {
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if (!authorizedAccess) {
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prop.authenticationRequired();
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return prop;
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}
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publicPage = post.get("publicPage", "0").equals("1");
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sb.setConfig("publicSurftips", publicPage);
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}
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prop.put("surftips_publicSurftips", publicPage);
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if ((publicPage) || (authorizedAccess)) {
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// read voting
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String hash;
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if ((post != null) && ((hash = post.get("voteNegative", "")).length() > 0)) {
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if (!sb.verifyAuthentication(header)) {
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prop.authenticationRequired();
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return prop;
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}
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// make new news message with voting
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if (sb.isRobinsonMode()) {
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final HashMap<String, String> map = new HashMap<>();
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map.put("urlhash", hash);
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map.put("vote", "negative");
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map.put("refid", post.get("refid", ""));
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sb.peers.newsPool.publishMyNews(sb.peers.mySeed(), NewsPool.CATEGORY_SURFTIPP_VOTE_ADD, map);
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}
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}
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if ((post != null) && ((hash = post.get("votePositive", "")).length() > 0)) {
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if (!sb.verifyAuthentication(header)) {
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prop.authenticationRequired();
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return prop;
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}
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// make new news message with voting
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final HashMap<String, String> map = new HashMap<>();
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map.put("urlhash", hash);
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map.put("url", crypt.simpleDecode(post.get("url", "")));
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map.put("title", crypt.simpleDecode(post.get("title", "")));
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map.put("description", crypt.simpleDecode(post.get("description", "")));
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map.put("vote", "positive");
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map.put("refid", post.get("refid", ""));
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map.put("comment", post.get("comment", ""));
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sb.peers.newsPool.publishMyNews(sb.peers.mySeed(), NewsPool.CATEGORY_SURFTIPP_VOTE_ADD, map);
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}
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// create surftips
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final HashMap<String, Integer> negativeHashes = new HashMap<>(); // a mapping from an url hash to Integer (count of votes)
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final HashMap<String, Integer> positiveHashes = new HashMap<>(); // a mapping from an url hash to Integer (count of votes)
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accumulateVotes(sb , negativeHashes, positiveHashes, NewsPool.INCOMING_DB);
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//accumulateVotes(negativeHashes, positiveHashes, yacyNewsPool.OUTGOING_DB);
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//accumulateVotes(negativeHashes, positiveHashes, yacyNewsPool.PUBLISHED_DB);
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final ScoreMap<String> ranking = new ConcurrentScoreMap<>(); // score cluster for url hashes
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final Row rowdef = new Row("String url-255, String title-120, String description-120, String refid-" + (GenericFormatter.PATTERN_SHORT_SECOND.length() + 12), NaturalOrder.naturalOrder);
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final HashMap<String, Entry> surftips = new HashMap<>(); // a mapping from an url hash to a kelondroRow.Entry with display properties
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accumulateSurftips(sb, surftips, ranking, rowdef, negativeHashes, positiveHashes, NewsPool.INCOMING_DB);
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//accumulateSurftips(surftips, ranking, rowdef, negativeHashes, positiveHashes, yacyNewsPool.OUTGOING_DB);
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//accumulateSurftips(surftips, ranking, rowdef, negativeHashes, positiveHashes, yacyNewsPool.PUBLISHED_DB);
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// read out surftipp array and create property entries
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final Iterator<String> k = ranking.keys(false);
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int i = 0;
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Row.Entry row;
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String url, urlhash, refid, title, description;
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boolean voted;
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while (k.hasNext()) {
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urlhash = k.next();
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if (urlhash == null) continue;
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row = surftips.get(urlhash);
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if (row == null) continue;
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url = row.getPrimaryKeyUTF8().trim();
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try{
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if(Switchboard.urlBlacklist.isListed(BlacklistType.SURFTIPS ,new DigestURL(url)))
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continue;
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}catch(final MalformedURLException e){continue;}
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title = row.getColUTF8(1);
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description = row.getColUTF8(2);
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if ((url == null) || (title == null) || (description == null)) continue;
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refid = row.getColUTF8(3);
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voted = (sb.peers.newsPool.getSpecific(NewsPool.OUTGOING_DB, NewsPool.CATEGORY_SURFTIPP_VOTE_ADD, "refid", refid) != null) ||
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(sb.peers.newsPool.getSpecific(NewsPool.PUBLISHED_DB, NewsPool.CATEGORY_SURFTIPP_VOTE_ADD, "refid", refid) != null);
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prop.put("surftips_results_" + i + "_authorized", (authenticated) ? "1" : "0");
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prop.put("surftips_results_" + i + "_authorized_recommend", (voted) ? "0" : "1");
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prop.put("surftips_results_" + i + "_authorized_recommend_urlhash", urlhash);
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prop.put("surftips_results_" + i + "_authorized_recommend_refid", refid);
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prop.put("surftips_results_" + i + "_authorized_recommend_url", crypt.simpleEncode(url, null, 'b'));
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prop.put("surftips_results_" + i + "_authorized_recommend_title", crypt.simpleEncode(title, null, 'b'));
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prop.put("surftips_results_" + i + "_authorized_recommend_description", crypt.simpleEncode(description, null, 'b'));
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prop.put("surftips_results_" + i + "_authorized_recommend_display", display);
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prop.put("surftips_results_" + i + "_authorized_recommend_showScore", (showScore ? "1" : "0"));
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prop.putXML("surftips_results_" + i + "_authorized_urlhash", urlhash);
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prop.putXML("surftips_results_" + i + "_url", url);
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prop.putXML("surftips_results_" + i + "_urlname", nxTools.shortenURLString(url, 60));
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prop.putXML("surftips_results_" + i + "_urlhash", urlhash);
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prop.putXML("surftips_results_" + i + "_title", (showScore) ? ("(" + ranking.get(urlhash) + ") " + title) : title);
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prop.putHTML("surftips_results_" + i + "_description", description);
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i++;
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if (i >= 50) break;
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}
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prop.put("surftips_results", i);
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prop.put("surftips", "1");
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} else {
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prop.put("surftips", "0");
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}
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return prop;
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}
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private static int timeFactor(final Date created) {
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return (int) Math.max(0, 10 - ((System.currentTimeMillis() - created.getTime()) / 24 / 60 / 60 / 1000));
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}
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private static void accumulateVotes(final Switchboard sb, final HashMap<String, Integer> negativeHashes, final HashMap<String, Integer> positiveHashes, final int dbtype) {
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final int maxCount = Math.min(1000, sb.peers.newsPool.size(dbtype));
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NewsDB.Record record;
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final Iterator<NewsDB.Record> recordIterator = sb.peers.newsPool.recordIterator(dbtype);
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int j = 0;
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while ((recordIterator.hasNext()) && (j++ < maxCount)) {
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record = recordIterator.next();
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if (record == null) continue;
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if (record.category().equals(NewsPool.CATEGORY_SURFTIPP_VOTE_ADD)) {
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final String urlhash = record.attribute("urlhash", "");
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final String vote = record.attribute("vote", "");
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final int factor = ((dbtype == NewsPool.OUTGOING_DB) || (dbtype == NewsPool.PUBLISHED_DB)) ? 2 : 1;
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if (vote.equals("negative")) {
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final Integer i = negativeHashes.get(urlhash);
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if (i == null) negativeHashes.put(urlhash, Integer.valueOf(factor));
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else negativeHashes.put(urlhash, Integer.valueOf(i.intValue() + factor));
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}
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if (vote.equals("positive")) {
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final Integer i = positiveHashes.get(urlhash);
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if (i == null) positiveHashes.put(urlhash, Integer.valueOf(factor));
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else positiveHashes.put(urlhash, Integer.valueOf(i.intValue() + factor));
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}
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}
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}
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}
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private static void accumulateSurftips(
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final Switchboard sb,
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final HashMap<String, Entry> surftips, final ScoreMap<String> ranking, final Row rowdef,
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final HashMap<String, Integer> negativeHashes, final HashMap<String, Integer> positiveHashes, final int dbtype) {
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final int maxCount = Math.min(1000, sb.peers.newsPool.size(dbtype));
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NewsDB.Record record;
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final Iterator<NewsDB.Record> recordIterator = sb.peers.newsPool.recordIterator(dbtype);
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int j = 0;
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String url = "", urlhash;
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Row.Entry entry;
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int score = 0;
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Integer vote;
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while ((recordIterator.hasNext()) && (j++ < maxCount)) {
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record = recordIterator.next();
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if (record == null) continue;
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entry = null;
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if (record.category().equals(NewsPool.CATEGORY_CRAWL_START)) {
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final String intention = record.attribute("intention", "");
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url = record.attribute("startURL", "");
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if (url.length() < 12) continue;
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entry = rowdef.newEntry(new byte[][]{
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url.getBytes(),
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(((intention.isEmpty()) || intention.equals("simple web crawl") || intention.equals("Automatic ReCrawl!")) ? record.attribute("startURL", "") : intention).getBytes(),
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intention.equals("Automatic ReCrawl!") ? UTF8.getBytes("Automatic ReCrawl") : UTF8.getBytes("Crawl Start Point"),
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record.id().getBytes()
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});
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score = 2 + Math.min(10, intention.length() / 4) + timeFactor(record.created());
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}
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if (record.category().equals(NewsPool.CATEGORY_BOOKMARK_ADD)) {
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url = record.attribute("url", "");
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if (url.length() < 12) continue;
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entry = rowdef.newEntry(new byte[][]{
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url.getBytes(),
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UTF8.getBytes(record.attribute("title", "")),
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UTF8.getBytes("Bookmark: " + record.attribute("description", "")),
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record.id().getBytes()
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});
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score = 8 + timeFactor(record.created());
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}
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if (record.category().equals(NewsPool.CATEGORY_SURFTIPP_ADD)) {
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url = record.attribute("url", "");
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if (url.length() < 12) continue;
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entry = rowdef.newEntry(new byte[][]{
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url.getBytes(),
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UTF8.getBytes(record.attribute("title", "")),
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UTF8.getBytes("Surf Tipp: " + record.attribute("description", "")),
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record.id().getBytes()
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});
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score = 5 + timeFactor(record.created());
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}
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if (record.category().equals(NewsPool.CATEGORY_SURFTIPP_VOTE_ADD)) {
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if (!(record.attribute("vote", "negative").equals("positive"))) continue;
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url = record.attribute("url", "");
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if (url.length() < 12) continue;
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entry = rowdef.newEntry(new byte[][]{
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url.getBytes(),
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UTF8.getBytes(record.attribute("title", "")),
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UTF8.getBytes(record.attribute("description", "")),
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UTF8.getBytes(record.attribute("refid", ""))
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});
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score = 5 + timeFactor(record.created());
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}
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if (record.category().equals(NewsPool.CATEGORY_WIKI_UPDATE)) {
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Seed seed = sb.peers.getConnected(record.originator());
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if (seed == null) seed = sb.peers.getDisconnected(record.originator());
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if (seed != null) {
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final Set<String> ips = seed.getIPs();
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if(!ips.isEmpty()) {
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url = seed.getPublicURL(ips.iterator().next(), false) + "/Wiki.html?page=" + record.attribute("page", "");
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entry = rowdef.newEntry(new byte[][]{
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UTF8.getBytes(url),
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UTF8.getBytes(record.attribute("author", "Anonymous") + ": " + record.attribute("page", "")),
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UTF8.getBytes("Wiki Update: " + record.attribute("description", "")),
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UTF8.getBytes(record.id())
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});
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score = 4 + timeFactor(record.created());
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}
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}
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}
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if (record.category().equals(NewsPool.CATEGORY_BLOG_ADD)) {
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Seed seed = sb.peers.getConnected(record.originator());
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if (seed == null) seed = sb.peers.getDisconnected(record.originator());
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if (seed != null) {
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final Set<String> ips = seed.getIPs();
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if(!ips.isEmpty()) {
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url = seed.getPublicURL(ips.iterator().next(), false) + "/Blog.html?page=" + record.attribute("page", "");
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entry = rowdef.newEntry(new byte[][]{
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UTF8.getBytes(url),
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UTF8.getBytes(record.attribute("author", "Anonymous") + ": " + record.attribute("page", "")),
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UTF8.getBytes("Blog Entry: " + record.attribute("subject", "")),
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UTF8.getBytes(record.id())
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});
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score = 4 + timeFactor(record.created());
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}
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}
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}
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// add/subtract votes and write record
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if (entry != null) {
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try {
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urlhash = UTF8.String((new DigestURL(url)).hash());
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} catch (final MalformedURLException e) {
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urlhash = null;
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}
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if (urlhash == null)
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try {
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urlhash = UTF8.String((new DigestURL("http://"+url)).hash());
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} catch (final MalformedURLException e) {
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urlhash = null;
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}
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if (urlhash == null) {
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System.out.println("Surftips: bad url '" + url + "' from news record " + record.toString());
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continue;
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}
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if ((vote = negativeHashes.get(urlhash)) != null) {
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score = Math.max(0, score - vote.intValue()); // do not go below zero
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}
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if ((vote = positiveHashes.get(urlhash)) != null) {
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score += 2 * vote.intValue();
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}
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// consider double-entries
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if (surftips.containsKey(urlhash)) {
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ranking.inc(urlhash, score);
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} else {
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ranking.set(urlhash, score);
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surftips.put(urlhash, entry);
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}
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}
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}
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}
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}
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