mirror of
https://github.com/yacy/yacy_search_server.git
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0edec2b760
The old process used a not really efficient way to detect html encoding strings in texts. All calling methods had been adoped to call the new class in an enhanced way with less parameters. Many classes in interfaces used a XML encoding only (instead of full html conversion from unicode to html); this behavior was not changed with this commit but should be controlled again since it points out possible XSS leaks git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5295 6c8d7289-2bf4-0310-a012-ef5d649a1542
337 lines
18 KiB
Java
337 lines
18 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: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
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// $LastChangedRevision: 1986 $
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// $LastChangedBy: orbiter $
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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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import java.io.IOException;
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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 de.anomic.http.httpRequestHeader;
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import de.anomic.index.indexReferenceBlacklist;
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import de.anomic.kelondro.kelondroMScoreCluster;
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import de.anomic.kelondro.kelondroNaturalOrder;
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import de.anomic.kelondro.kelondroRow;
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import de.anomic.kelondro.kelondroRow.Entry;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.server.serverDate;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverSwitch;
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import de.anomic.tools.crypt;
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import de.anomic.tools.nxTools;
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import de.anomic.yacy.yacyNewsPool;
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import de.anomic.yacy.yacyNewsRecord;
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import de.anomic.yacy.yacySeed;
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import de.anomic.yacy.yacyURL;
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public class Surftips {
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public static serverObjects respond(final httpRequestHeader header, final serverObjects post, final serverSwitch<?> env) {
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final plasmaSwitchboard sb = (plasmaSwitchboard) 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, false);
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if ((post != null) && (post.containsKey("publicPage"))) {
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if (!authorizedAccess) {
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prop.put("AUTHENTICATE", "admin log-in"); // force log-in
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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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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", null)) != null)) {
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if (!sb.verifyAuthentication(header, false)) {
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prop.put("AUTHENTICATE", "admin log-in"); // force log-in
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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<String, String>();
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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.webIndex.newsPool.publishMyNews(yacyNewsRecord.newRecord(sb.webIndex.seedDB.mySeed(), yacyNewsPool.CATEGORY_SURFTIPP_VOTE_ADD, map));
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}
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if ((post != null) && ((hash = post.get("votePositive", null)) != null)) {
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if (!sb.verifyAuthentication(header, false)) {
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prop.put("AUTHENTICATE", "admin log-in"); // force log-in
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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<String, String>();
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map.put("urlhash", hash);
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map.put("url", crypt.simpleDecode(post.get("url", ""), null));
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map.put("title", crypt.simpleDecode(post.get("title", ""), null));
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map.put("description", crypt.simpleDecode(post.get("description", ""), null));
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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.webIndex.newsPool.publishMyNews(new yacyNewsRecord(sb.webIndex.seedDB.mySeed(), yacyNewsPool.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<String, Integer>(); // a mapping from an url hash to Integer (count of votes)
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final HashMap<String, Integer> positiveHashes = new HashMap<String, Integer>(); // a mapping from an url hash to Integer (count of votes)
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accumulateVotes(sb , negativeHashes, positiveHashes, yacyNewsPool.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 kelondroMScoreCluster<String> ranking = new kelondroMScoreCluster<String>(); // score cluster for url hashes
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final kelondroRow rowdef = new kelondroRow("String url-255, String title-120, String description-120, String refid-" + (serverDate.PATTERN_SHORT_SECOND.length() + 12), kelondroNaturalOrder.naturalOrder, 0);
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final HashMap<String, Entry> surftips = new HashMap<String, Entry>(); // a mapping from an url hash to a kelondroRow.Entry with display properties
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accumulateSurftips(sb, surftips, ranking, rowdef, negativeHashes, positiveHashes, yacyNewsPool.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.scores(false);
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int i = 0;
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kelondroRow.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.getColString(0, null);
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try{
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if(plasmaSwitchboard.urlBlacklist.isListed(indexReferenceBlacklist.BLACKLIST_SURFTIPS ,new yacyURL(url, null)))
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continue;
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}catch(final MalformedURLException e){continue;};
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title = row.getColString(1,"UTF-8");
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description = row.getColString(2,"UTF-8");
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if ((url == null) || (title == null) || (description == null)) continue;
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refid = row.getColString(3, null);
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voted = (sb.webIndex.newsPool.getSpecific(yacyNewsPool.OUTGOING_DB, yacyNewsPool.CATEGORY_SURFTIPP_VOTE_ADD, "refid", refid) != null) ||
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(sb.webIndex.newsPool.getSpecific(yacyNewsPool.PUBLISHED_DB, yacyNewsPool.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.getScore(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 plasmaSwitchboard 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.webIndex.newsPool.size(dbtype));
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yacyNewsRecord record;
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final Iterator<yacyNewsRecord> recordIterator = sb.webIndex.newsPool.recordIterator(dbtype, true);
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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(yacyNewsPool.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 == yacyNewsPool.OUTGOING_DB) || (dbtype == yacyNewsPool.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 plasmaSwitchboard sb,
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final HashMap<String, Entry> surftips, final kelondroMScoreCluster<String> ranking, final kelondroRow 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.webIndex.newsPool.size(dbtype));
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yacyNewsRecord record;
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final Iterator<yacyNewsRecord> recordIterator = sb.webIndex.newsPool.recordIterator(dbtype, true);
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int j = 0;
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String url = "", urlhash;
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kelondroRow.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(yacyNewsPool.CATEGORY_CRAWL_START)) try {
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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.length() == 0) || (intention.equals("simple web crawl"))) ? record.attribute("startURL", "") : intention).getBytes(),
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("Crawl Start Point").getBytes("UTF-8"),
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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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} catch (final IOException e) {}
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if (record.category().equals(yacyNewsPool.CATEGORY_BOOKMARK_ADD)) try {
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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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(record.attribute("title", "")).getBytes("UTF-8"),
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("Bookmark: " + record.attribute("description", "")).getBytes("UTF-8"),
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record.id().getBytes()
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});
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score = 8 + timeFactor(record.created());
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} catch (final IOException e) {}
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if (record.category().equals(yacyNewsPool.CATEGORY_SURFTIPP_ADD)) try {
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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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(record.attribute("title", "")).getBytes("UTF-8"),
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("Surf Tipp: " + record.attribute("description", "")).getBytes("UTF-8"),
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record.id().getBytes()
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});
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score = 5 + timeFactor(record.created());
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} catch (final IOException e) {}
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if (record.category().equals(yacyNewsPool.CATEGORY_SURFTIPP_VOTE_ADD)) try {
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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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record.attribute("title", "").getBytes("UTF-8"),
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record.attribute("description", "").getBytes("UTF-8"),
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record.attribute("refid", "").getBytes()
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});
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score = 5 + timeFactor(record.created());
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} catch (final IOException e) {}
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if (record.category().equals(yacyNewsPool.CATEGORY_WIKI_UPDATE)) try {
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yacySeed seed = sb.webIndex.seedDB.getConnected(record.originator());
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if (seed == null) seed = sb.webIndex.seedDB.getDisconnected(record.originator());
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if (seed != null) {
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url = "http://" + seed.getPublicAddress() + "/Wiki.html?page=" + record.attribute("page", "");
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entry = rowdef.newEntry(new byte[][]{
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url.getBytes(),
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(record.attribute("author", "Anonymous") + ": " + record.attribute("page", "")).getBytes("UTF-8"),
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("Wiki Update: " + record.attribute("description", "")).getBytes("UTF-8"),
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record.id().getBytes()
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});
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score = 4 + timeFactor(record.created());
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}
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} catch (final IOException e) {}
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if (record.category().equals(yacyNewsPool.CATEGORY_BLOG_ADD)) try {
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yacySeed seed = sb.webIndex.seedDB.getConnected(record.originator());
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if (seed == null) seed = sb.webIndex.seedDB.getDisconnected(record.originator());
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if (seed != null) {
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url = "http://" + seed.getPublicAddress() + "/Blog.html?page=" + record.attribute("page", "");
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entry = rowdef.newEntry(new byte[][]{
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url.getBytes(),
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(record.attribute("author", "Anonymous") + ": " + record.attribute("page", "")).getBytes("UTF-8"),
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("Blog Entry: " + record.attribute("subject", "")).getBytes("UTF-8"),
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record.id().getBytes()
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});
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score = 4 + timeFactor(record.created());
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}
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} catch (final IOException e) {}
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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 = (new yacyURL(url, null)).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 = (new yacyURL("http://"+url, null)).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.addScore(urlhash, score);
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} else {
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ranking.setScore(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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