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203 lines
9.9 KiB
203 lines
9.9 KiB
// ysearchitem.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.TreeSet;
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import de.anomic.http.httpHeader;
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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.serverSwitch;
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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.yacySeed;
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import de.anomic.yacy.yacyURL;
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public class ysearchitem {
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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(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 rss = post.get("rss", "false").equals("true");
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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("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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int offset = theQuery.neededResults() - theQuery.displayResults();
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// dynamically update count values
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if (!rss) {
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prop.put("dynamic_offset", offset + 1);
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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_resnav", "");
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prop.put("dynamic", "1");
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}
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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.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.put("content_snippet", (snippet == null) ? "(snippet not found)" : snippet.getLineMarked(theQuery.queryHashes));
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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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