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263 lines
14 KiB
263 lines
14 KiB
// 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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// $LastChangedDate$
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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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import java.net.MalformedURLException;
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import java.util.List;
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import java.util.TreeSet;
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import net.yacy.cora.date.GenericFormatter;
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import net.yacy.cora.protocol.HeaderFramework;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.kelondro.data.meta.DigestURI;
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import net.yacy.kelondro.logging.Log;
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import net.yacy.kelondro.util.EventTracker;
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import net.yacy.kelondro.util.Formatter;
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import de.anomic.search.ContentDomain;
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import de.anomic.search.MediaSnippet;
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import de.anomic.search.QueryParams;
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import de.anomic.search.SearchEvent;
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import de.anomic.search.ResultEntry;
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import de.anomic.search.SearchEventCache;
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import de.anomic.search.Switchboard;
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import de.anomic.search.SwitchboardConstants;
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import de.anomic.search.TextSnippet;
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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.yacySeed;
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import de.anomic.yacy.graphics.ProfilingGraph;
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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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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 String eventID = post.get("eventID", "");
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final boolean authenticated = sb.adminAuthenticated(header) >= 2;
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final int item = post.getInt("item", -1);
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final boolean auth = (header.get(HeaderFramework.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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boolean isHtml = header.get(HeaderFramework.CONNECTION_PROP_PATH).endsWith(".html");
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// find search event
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final SearchEvent theSearch = SearchEventCache.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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final QueryParams theQuery = theSearch.getQuery();
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// dynamically update count values
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final int totalcount = theSearch.getRankingResult().getLocalIndexCount() - theSearch.getRankingResult().getMissCount() + theSearch.getRankingResult().getRemoteIndexCount();
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final int offset = theQuery.neededResults() - theQuery.displayResults() + 1;
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prop.put("offset", offset);
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prop.put("itemscount", Formatter.number(Math.min((item < 0) ? theQuery.neededResults() : item + 1, totalcount)));
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prop.put("totalcount", Formatter.number(totalcount, true));
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prop.put("localResourceSize", Formatter.number(theSearch.getRankingResult().getLocalIndexCount(), true));
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prop.put("localMissCount", Formatter.number(theSearch.getRankingResult().getMissCount(), true));
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prop.put("remoteResourceSize", Formatter.number(theSearch.getRankingResult().getRemoteResourceSize(), true));
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prop.put("remoteIndexCount", Formatter.number(theSearch.getRankingResult().getRemoteIndexCount(), true));
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prop.put("remotePeerCount", Formatter.number(theSearch.getRankingResult().getRemotePeerCount(), true));
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if (theQuery.contentdom == ContentDomain.TEXT) {
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// text search
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// generate result object
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final ResultEntry result = theSearch.oneResult(item, theQuery.isLocal() ? 1000 : 5000);
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if (result == null) return prop; // no content
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DigestURI resultURL = result.url();
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final int port = resultURL.getPort();
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DigestURI faviconURL = null;
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if (isHtml && !sb.isIntranetMode() && !resultURL.isLocal()) try {
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faviconURL = new DigestURI(resultURL.getProtocol() + "://" + resultURL.getHost() + ((port != -1) ? (":" + port) : "") + "/favicon.ico");
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} catch (final MalformedURLException e1) {
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Log.logException(e1);
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faviconURL = null;
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}
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prop.put("content", 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.peers.newsPool.getSpecific(yacyNewsPool.OUTGOING_DB, yacyNewsPool.CATEGORY_SURFTIPP_ADD, "url", result.urlstring()) == null) ? "1" : "0");
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prop.putHTML("content_authorized_recommend_deletelink", "/yacysearch.html?query=" + theQuery.queryString.replace(' ', '+') + "&Enter=Search&count=" + theQuery.displayResults() + "&offset=" + (theQuery.neededResults() - theQuery.displayResults()) + "&order=" + crypt.simpleEncode(theQuery.ranking.toExternalString()) + "&resource=local&time=3&deleteref=" + new String(result.hash()) + "&urlmaskfilter=.*");
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prop.putHTML("content_authorized_recommend_recommendlink", "/yacysearch.html?query=" + theQuery.queryString.replace(' ', '+') + "&Enter=Search&count=" + theQuery.displayResults() + "&offset=" + (theQuery.neededResults() - theQuery.displayResults()) + "&order=" + crypt.simpleEncode(theQuery.ranking.toExternalString()) + "&resource=local&time=3&recommendref=" + new String(result.hash()) + "&urlmaskfilter=.*");
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prop.put("content_authorized_urlhash", new String(result.hash()));
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String resulthashString = new String(result.hash());
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prop.putHTML("content_title", result.title());
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prop.putXML("content_title-xml", result.title());
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prop.putJSON("content_title-json", result.title());
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prop.putHTML("content_link", result.urlstring());
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prop.putHTML("content_target", sb.getConfig(SwitchboardConstants.SEARCH_TARGET, "_self"));
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if (faviconURL != null && isHtml) sb.loader.loadIfNotExistBackground(faviconURL.toNormalform(true, false), 1024 * 1024 * 10);
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prop.putHTML("content_faviconCode", sb.licensedURLs.aquireLicense(faviconURL)); // acquire license for favicon url loading
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prop.put("content_urlhash", resulthashString);
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prop.put("content_urlhexhash", yacySeed.b64Hash2hexHash(resulthashString));
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prop.putHTML("content_urlname", nxTools.shortenURLString(result.urlname(), urllength));
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prop.put("content_date", GenericFormatter.RFC1123_SHORT_FORMATTER.format(result.modified()));
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prop.put("content_date822", HeaderFramework.formatRFC1123(result.modified()));
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//prop.put("content_ybr", RankingProcess.ybr(result.hash()));
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prop.putHTML("content_size", Integer.toString(result.filesize())); // we don't use putNUM here because that number shall be usable as sorting key. To print the size, use 'sizename'
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prop.putHTML("content_sizename", sizename(result.filesize()));
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prop.putHTML("content_host", resultURL.getHost() == null ? "" : resultURL.getHost());
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prop.putHTML("content_file", resultURL.getFile());
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prop.putHTML("content_path", resultURL.getPath());
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prop.put("content_nl", (item == 0) ? 0 : 1);
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prop.putHTML("content_publisher", result.publisher());
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prop.putHTML("content_creator", result.creator());// author
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prop.putHTML("content_subject", result.subject());
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final TreeSet<String>[] query = theQuery.queryWords();
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String s = ""; for (String t: query[0]) s += "+" + t;
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if (s.length() > 0) s = s.substring(1);
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prop.putHTML("content_words", s);
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prop.putHTML("content_former", theQuery.queryString);
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final TextSnippet snippet = result.textSnippet();
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final String desc = (snippet == null) ? "" : snippet.getLineMarked(theQuery.fullqueryHashes);
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prop.put("content_description", desc);
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prop.putXML("content_description-xml", desc);
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prop.putJSON("content_description-json", desc);
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SearchEvent.HeuristicResult heuristic = theSearch.getHeuristic(result.hash());
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if (heuristic == null) {
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prop.put("content_heuristic", 0);
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} else {
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if (heuristic.redundant) {
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prop.put("content_heuristic", 1);
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} else {
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prop.put("content_heuristic", 2);
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}
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prop.put("content_heuristic_name", heuristic.heuristicName);
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}
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EventTracker.update(EventTracker.EClass.SEARCH, new ProfilingGraph.searchEvent(theQuery.id(true), SearchEvent.Type.FINALIZATION, "" + item, 0, 0), false);
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String ext = resultURL.getFileExtension().toLowerCase();
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if (ext.equals("png") || ext.equals("jpg") || ext.equals("gif")) {
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String license = sb.licensedURLs.aquireLicense(resultURL);
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prop.put("content_code", license);
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} else {
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prop.put("content_code", "");
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}
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theQuery.transmitcount = item + 1;
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return prop;
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}
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if (theQuery.contentdom == ContentDomain.IMAGE) {
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// image search; shows thumbnails
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prop.put("content", theQuery.contentdom.getCode() + 1); // switch on specific content
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final MediaSnippet ms = theSearch.result().oneImage(item);
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if (ms == null) {
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prop.put("content_item", "0");
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} else {
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String license = sb.licensedURLs.aquireLicense(ms.href);
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sb.loader.loadIfNotExistBackground(ms.href.toNormalform(true, false), 1024 * 1024 * 10);
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prop.putHTML("content_item_hrefCache", (auth) ? "/ViewImage.png?url=" + ms.href.toNormalform(true, false) : ms.href.toNormalform(true, false));
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prop.putHTML("content_item_href", ms.href.toNormalform(true, false));
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prop.put("content_item_code", license);
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prop.putHTML("content_item_name", shorten(ms.name, namelength));
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prop.put("content_item_mimetype", ms.mime);
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prop.put("content_item_fileSize", ms.fileSize);
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prop.put("content_item_width", ms.width);
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prop.put("content_item_height", ms.height);
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prop.put("content_item_attr", (ms.attr.equals("-1 x -1")) ? "" : "(" + ms.attr + ")"); // attributes, here: original size of image
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prop.put("content_item_urlhash", new String(ms.source.hash()));
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prop.put("content_item_source", ms.source.toNormalform(true, false));
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prop.putXML("content_item_source-xml", ms.source.toNormalform(true, false));
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prop.put("content_item_sourcedom", ms.source.getHost());
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prop.put("content_item_nl", (item == 0) ? 0 : 1);
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prop.put("content_item", 1);
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}
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theQuery.transmitcount = item + 1;
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return prop;
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}
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if ((theQuery.contentdom == ContentDomain.AUDIO) ||
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(theQuery.contentdom == ContentDomain.VIDEO) ||
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(theQuery.contentdom == ContentDomain.APP)) {
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// any other media content
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// generate result object
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final ResultEntry result = theSearch.oneResult(item, 500);
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if (result == null) return prop; // no content
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prop.put("content", theQuery.contentdom.getCode() + 1); // switch on specific content
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final List<MediaSnippet> media = result.mediaSnippets();
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if (item == 0) col = true;
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if (media != null) {
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int c = 0;
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for (final MediaSnippet ms : media) {
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prop.putHTML("content_items_" + c + "_href", ms.href.toNormalform(true, false));
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prop.putHTML("content_items_" + c + "_hrefshort", nxTools.shortenURLString(ms.href.toNormalform(true, false), urllength));
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prop.putHTML("content_items_" + c + "_name", shorten(ms.name, namelength));
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prop.put("content_items_" + c + "_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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theQuery.transmitcount = item + 1;
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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(final String s, final int length) {
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if (s.length() <= length) return s;
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final int p = s.lastIndexOf('.');
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if (p < 0) return s.substring(0, length - 3) + "...";
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assert p >= 0;
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String ext = s.substring(p + 1);
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if (ext.length() > 4) return s.substring(0, length / 2 - 2) + "..." + s.substring(s.length() - (length / 2 - 2));
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return s.substring(0, length - ext.length() - 3) + "..." + ext;
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}
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private static String sizename(int size) {
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if (size < 1024) return size + " bytes";
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size = size / 1024;
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if (size < 1024) return size + " kbyte";
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size = size / 1024;
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if (size < 1024) return size + " mbyte";
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size = size / 1024;
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return size + " gbyte";
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}
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}
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