mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-19 00:01:41 +02:00
d2ba1fd2ab
This change is inspired by the need to see a network connected to the index it creates in a indexing team. It is not possible to divide the network and the index. Therefore all control files for the network was moved to the network within the INDEX/<network-name> subfolder. The remaining YACYDB is superfluous and can be deleted. The yacyDB and yacyNews data structures are now part of plasmaWordIndex. Therefore all methods, using static access to yacySeedDB had to be rewritten. A special problem had been all the port forwarding methods which had been tightly mixed with seed construction. It was not possible to move the port forwarding functions to the place, meaning and usage of plasmaWordIndex. Therefore the port forwarding had been deleted (I guess nobody used it and it can be simulated by methods outside of YaCy). The mySeed.txt is automatically moved to the current network position. A new effect causes that every network will create a different local seed file, which is ok, since the seed identifies the peer only against the network (it is the purpose of the seed hash to give a peer a location within the DHT). No other functional change has been made. The next steps to enable network switcing are: - shift of crawler tables from PLASMADB into the network (crawls are also network-specific) - possibly shift of plasmaWordIndex code into yacy package (index management is network-specific) - servlet to switch networks git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4765 6c8d7289-2bf4-0310-a012-ef5d649a1542
295 lines
15 KiB
Java
295 lines
15 KiB
Java
// yacysearchitem.java
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// (C) 2007 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 28.08.2007 on http://yacy.net
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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.UnsupportedEncodingException;
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import java.net.MalformedURLException;
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import java.net.URLEncoder;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.Set;
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import java.util.TreeSet;
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import de.anomic.http.httpHeader;
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import de.anomic.kelondro.kelondroMSetTools;
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import de.anomic.kelondro.kelondroNaturalOrder;
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import de.anomic.plasma.plasmaProfiling;
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import de.anomic.plasma.plasmaSearchEvent;
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import de.anomic.plasma.plasmaSearchQuery;
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import de.anomic.plasma.plasmaSearchRankingProcess;
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import de.anomic.plasma.plasmaSnippetCache;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverProfiling;
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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.tools.yFormatter;
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import de.anomic.yacy.yacyNewsPool;
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import de.anomic.yacy.yacySeed;
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import de.anomic.yacy.yacyURL;
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public class yacysearchitem {
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private static boolean col = true;
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private static final int namelength = 60;
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private static final int urllength = 120;
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private static final int MAX_TOPWORDS = 24;
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public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch<?> env) {
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final plasmaSwitchboard sb = (plasmaSwitchboard) env;
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final serverObjects prop = new serverObjects();
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String eventID = post.get("eventID", "");
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boolean bottomline = post.get("bottomline", "false").equals("true");
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boolean rss = post.get("rss", "false").equals("true");
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boolean authenticated = sb.adminAuthenticated(header) >= 2;
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int item = post.getInt("item", -1);
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boolean auth = ((String) header.get(httpHeader.CONNECTION_PROP_CLIENTIP, "")).equals("localhost") || sb.verifyAuthentication(header, true);
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// default settings for blank item
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prop.put("content", "0");
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prop.put("rss", "0");
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prop.put("references", "0");
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prop.put("rssreferences", "0");
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prop.put("dynamic", "0");
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// find search event
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plasmaSearchEvent theSearch = plasmaSearchEvent.getEvent(eventID);
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if (theSearch == null) {
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// the event does not exist, show empty page
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return prop;
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}
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plasmaSearchQuery theQuery = theSearch.getQuery();
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// dynamically update count values
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if (!rss) {
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int offset = theQuery.neededResults() - theQuery.displayResults() + 1;
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prop.put("dynamic_offset", offset);
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prop.put("dynamic_itemscount", (item < 0) ? theQuery.neededResults() : item + 1);
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prop.put("dynamic_totalcount", yFormatter.number(theSearch.getRankingResult().getLocalResourceSize() + theSearch.getRankingResult().getRemoteResourceSize(), !rss));
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prop.put("dynamic_localResourceSize", yFormatter.number(theSearch.getRankingResult().getLocalResourceSize(), !rss));
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prop.put("dynamic_remoteResourceSize", yFormatter.number(theSearch.getRankingResult().getRemoteResourceSize(), !rss));
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prop.put("dynamic_remoteIndexCount", yFormatter.number(theSearch.getRankingResult().getRemoteIndexCount(), !rss));
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prop.put("dynamic_remotePeerCount", yFormatter.number(theSearch.getRankingResult().getRemotePeerCount(), !rss));
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prop.put("dynamic", "1");
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}
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if (bottomline) {
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// attach the bottom line with search references (topwords)
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final Set<String> references = theSearch.references(20);
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if (references.size() > 0) {
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// get the topwords
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final TreeSet<String> topwords = new TreeSet<String>(kelondroNaturalOrder.naturalComparator);
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String tmp = "";
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Iterator<String> i = references.iterator();
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while (i.hasNext()) {
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tmp = i.next();
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if (tmp.matches("[a-z]+")) {
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topwords.add(tmp);
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}
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}
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// filter out the badwords
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final TreeSet<String> filteredtopwords = kelondroMSetTools.joinConstructive(topwords, plasmaSwitchboard.badwords);
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if (filteredtopwords.size() > 0) {
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kelondroMSetTools.excludeDestructive(topwords, plasmaSwitchboard.badwords);
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}
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// avoid stopwords being topwords
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if (env.getConfig("filterOutStopwordsFromTopwords", "true").equals("true")) {
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if ((plasmaSwitchboard.stopwords != null) && (plasmaSwitchboard.stopwords.size() > 0)) {
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kelondroMSetTools.excludeDestructive(topwords, plasmaSwitchboard.stopwords);
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}
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}
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if (rss) {
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String word;
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int hintcount = 0;
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final Iterator<String> iter = topwords.iterator();
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while (iter.hasNext()) {
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word = (String) iter.next();
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if (word != null) {
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prop.putHTML("rssreferences_words_" + hintcount + "_word", word);
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}
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prop.put("rssreferences_words", hintcount);
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if (hintcount++ > MAX_TOPWORDS) {
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break;
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}
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}
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prop.put("rssreferences", "1");
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} else {
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String word;
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int hintcount = 0;
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final Iterator<String> iter = topwords.iterator();
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while (iter.hasNext()) {
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word = (String) iter.next();
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if ((theQuery == null) || (theQuery.queryString == null)) break;
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if (word != null) {
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prop.putHTML("references_words_" + hintcount + "_word", word);
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prop.putHTML("references_words_" + hintcount + "_newsearch", theQuery.queryString.replace(' ', '+') + "+" + word);
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prop.put("references_words_" + hintcount + "_count", theQuery.displayResults());
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prop.put("references_words_" + hintcount + "_offset", "0");
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prop.put("references_words_" + hintcount + "_contentdom", theQuery.contentdom());
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prop.put("references_words_" + hintcount + "_resource", ((theQuery.isLocal()) ? "local" : "global"));
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}
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prop.put("references_words", hintcount);
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if (hintcount++ > MAX_TOPWORDS) {
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break;
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}
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}
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prop.put("references", "1");
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}
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}
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serverProfiling.update("SEARCH", new plasmaProfiling.searchEvent(theQuery.id(true), plasmaSearchEvent.FINALIZATION + "-" + "bottomline", 0, 0));
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return prop;
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}
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prop.put("rss", "0");
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if (theQuery.contentdom == plasmaSearchQuery.CONTENTDOM_TEXT) {
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// text search
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// generate result object
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plasmaSearchEvent.ResultEntry result = theSearch.oneResult(item);
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if (result == null) return prop; // no content
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if (rss) {
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// text search for rss output
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prop.put("rss", "1"); // switch on specific content
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prop.putHTML("rss_title", result.title(), true);
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prop.putHTML("rss_description", result.textSnippet().getLineRaw(), true);
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prop.putHTML("rss_link", result.urlstring(), true);
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prop.put("rss_urlhash", result.hash());
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prop.put("rss_date", plasmaSwitchboard.dateString822(result.modified()));
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return prop;
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}
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prop.put("content", theQuery.contentdom + 1); // switch on specific content
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prop.put("content_authorized", authenticated ? "1" : "0");
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prop.put("content_authorized_recommend", (sb.wordIndex.newsPool.getSpecific(yacyNewsPool.OUTGOING_DB, yacyNewsPool.CATEGORY_SURFTIPP_ADD, "url", result.urlstring()) == null) ? "1" : "0");
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prop.put("content_authorized_recommend_deletelink", "/yacysearch.html?search=" + theQuery.queryString + "&Enter=Search&count=" + theQuery.displayResults() + "&offset=" + (theQuery.neededResults() - theQuery.displayResults()) + "&order=" + crypt.simpleEncode(theQuery.ranking.toExternalString()) + "&resource=local&time=3&deleteref=" + result.hash() + "&urlmaskfilter=.*");
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prop.put("content_authorized_recommend_recommendlink", "/yacysearch.html?search=" + theQuery.queryString + "&Enter=Search&count=" + theQuery.displayResults() + "&offset=" + (theQuery.neededResults() - theQuery.displayResults()) + "&order=" + crypt.simpleEncode(theQuery.ranking.toExternalString()) + "&resource=local&time=3&recommendref=" + result.hash() + "&urlmaskfilter=.*");
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prop.put("content_authorized_urlhash", result.hash());
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prop.putHTML("content_description", result.title());
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prop.put("content_url", result.urlstring());
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int port=result.url().getPort();
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yacyURL faviconURL;
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try {
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faviconURL = new yacyURL(result.url().getProtocol() + "://" + result.url().getHost() + ((port != -1) ? (":" + String.valueOf(port)) : "") + "/favicon.ico", null);
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} catch (MalformedURLException e1) {
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faviconURL = null;
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}
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prop.putHTML("content_faviconCode", sb.licensedURLs.aquireLicense(faviconURL)); // aquire license for favicon url loading
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prop.put("content_urlhash", result.hash());
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prop.put("content_urlhexhash", yacySeed.b64Hash2hexHash(result.hash()));
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prop.putHTML("content_urlname", nxTools.shortenURLString(result.urlname(), urllength));
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prop.put("content_date", plasmaSwitchboard.dateString(result.modified()));
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prop.put("content_ybr", plasmaSearchRankingProcess.ybr(result.hash()));
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prop.putNum("content_size", result.filesize());
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TreeSet<String>[] query = theQuery.queryWords();
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yacyURL wordURL = null;
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try {
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prop.putHTML("content_words", URLEncoder.encode(query[0].toString(),"UTF-8"));
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} catch (UnsupportedEncodingException e) {}
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prop.putHTML("content_former", theQuery.queryString);
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prop.put("content_rankingprops", result.word().toPropertyForm() + ", domLengthEstimated=" + yacyURL.domLengthEstimation(result.hash()) +
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((yacyURL.probablyRootURL(result.hash())) ? ", probablyRootURL" : "") +
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(((wordURL = yacyURL.probablyWordURL(result.hash(), query[0])) != null) ? ", probablyWordURL=" + wordURL.toNormalform(false, true) : ""));
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plasmaSnippetCache.TextSnippet snippet = result.textSnippet();
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prop.putHTML("content_snippet", (snippet == null) ? "(snippet not found)" : snippet.getLineMarked(theQuery.queryHashes));
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serverProfiling.update("SEARCH", new plasmaProfiling.searchEvent(theQuery.id(true), plasmaSearchEvent.FINALIZATION + "-" + item, 0, 0));
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return prop;
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}
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if (theQuery.contentdom == plasmaSearchQuery.CONTENTDOM_IMAGE) {
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// image search; shows thumbnails
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prop.put("content", theQuery.contentdom + 1); // switch on specific content
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plasmaSnippetCache.MediaSnippet ms = theSearch.oneImage(item);
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if (ms == null) {
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prop.put("content_items", "0");
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} else {
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prop.putHTML("content_items_0_hrefCache", (auth) ? "/ViewImage.png?url=" + ms.href.toNormalform(true, false) : ms.href.toNormalform(true, false));
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prop.putHTML("content_items_0_href", ms.href.toNormalform(true, false));
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prop.put("content_items_0_code", sb.licensedURLs.aquireLicense(ms.href));
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prop.putHTML("content_items_0_name", shorten(ms.name, namelength));
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prop.put("content_items_0_attr", (ms.attr.equals("-1 x -1")) ? "" : "(" + ms.attr + ")"); // attributes, here: original size of image
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prop.put("content_items_0_source", ms.source.toNormalform(true, false));
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prop.put("content_items_0_sourcedom", ms.source.getHost());
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prop.put("content_items", 1);
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}
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return prop;
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}
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if ((theQuery.contentdom == plasmaSearchQuery.CONTENTDOM_AUDIO) ||
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(theQuery.contentdom == plasmaSearchQuery.CONTENTDOM_VIDEO) ||
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(theQuery.contentdom == plasmaSearchQuery.CONTENTDOM_APP)) {
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// any other media content
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// generate result object
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plasmaSearchEvent.ResultEntry result = theSearch.oneResult(item);
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if (result == null) return prop; // no content
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prop.put("content", theQuery.contentdom + 1); // switch on specific content
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ArrayList<plasmaSnippetCache.MediaSnippet> media = result.mediaSnippets();
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if (item == 0) col = true;
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if (media != null) {
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plasmaSnippetCache.MediaSnippet ms;
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int c = 0;
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for (int i = 0; i < media.size(); i++) {
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ms = (plasmaSnippetCache.MediaSnippet) media.get(i);
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prop.putHTML("content_items_" + i + "_href", ms.href.toNormalform(true, false));
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prop.putHTML("content_items_" + i + "_hrefshort", nxTools.shortenURLString(ms.href.toNormalform(true, false), urllength));
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prop.putHTML("content_items_" + i + "_name", shorten(ms.name, namelength));
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prop.put("content_items_" + i + "_col", (col) ? "0" : "1");
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c++;
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col = !col;
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}
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prop.put("content_items", c);
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} else {
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prop.put("content_items", "0");
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}
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return prop;
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}
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return prop;
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}
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private static String shorten(String s, int length) {
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if (s.length() <= length) return s;
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int p = s.lastIndexOf('.');
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if (p < 0) return s.substring(0, length - 3) + "...";
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return s.substring(0, length - (s.length() - p) - 3) + "..." + s.substring(p);
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}
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}
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