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yacy_search_server
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yacy_search_server/htroot/DetailedSearch.java

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// DetailedSearch.java
// -----------------------
// part of the AnomicHTTPD caching proxy
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2006
//
// $LastChangedDate: 2006-02-05 16:38:31 +0100 (So, 05 Feb 2006) $
// $LastChangedRevision: 1548 $
// $LastChangedBy: orbiter $
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Using this software in any meaning (reading, learning, copying, compiling,
// running) means that you agree that the Author(s) is (are) not responsible
// for cost, loss of data or any harm that may be caused directly or indirectly
// by usage of this softare or this documentation. The usage of this software
// is on your own risk. The installation and usage (starting/running) of this
// software may allow other people or application to access your computer and
// any attached devices and is highly dependent on the configuration of the
// software which must be done by the user of the software; the author(s) is
// (are) also not responsible for proper configuration and usage of the
// software, even if provoked by documentation provided together with
// the software.
//
// Any changes to this file according to the GPL as documented in the file
// gpl.txt aside this file in the shipment you received can be done to the
// lines that follows this copyright notice here, but changes must not be
// done inside the copyright notive above. A re-distribution must contain
// the intact and unchanged copyright notice.
// Contributions and changes to the program code must be marked as such.
//
// You must compile this file with
// javac -classpath .:../classes index.java
// if the shell's current path is HTROOT
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Iterator;
import java.util.TreeSet;
import java.util.Map;
import de.anomic.http.httpHeader;
import de.anomic.kelondro.kelondroMSetTools;
import de.anomic.net.URL;
import de.anomic.plasma.plasmaSearchPreOrder;
import de.anomic.plasma.plasmaSearchQuery;
import de.anomic.plasma.plasmaSearchRankingProfile;
import de.anomic.plasma.plasmaSearchTimingProfile;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.plasma.plasmaURL;
import de.anomic.plasma.plasmaSearchResults;
import de.anomic.server.serverCore;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.yacy.yacyCore;
import de.anomic.yacy.yacyNewsPool;
import de.anomic.yacy.yacySeed;
import de.anomic.tools.crypt;
import de.anomic.tools.nxTools;
public class DetailedSearch {
private static final int maxRankingRange = 16;
private static final HashMap rankingParameters = new HashMap();
static {
rankingParameters.put(plasmaSearchRankingProfile.APPAUTHOR, "Appearance In Author");
rankingParameters.put(plasmaSearchRankingProfile.APPDESCR, "Appearance In Description");
rankingParameters.put(plasmaSearchRankingProfile.APPEMPH, "Appearance In Emphasized Text");
rankingParameters.put(plasmaSearchRankingProfile.APPREF, "Appearance In Reference");
rankingParameters.put(plasmaSearchRankingProfile.APPTAGS, "Appearance In Tags");
rankingParameters.put(plasmaSearchRankingProfile.APPURL, "Appearance In URL");
rankingParameters.put(plasmaSearchRankingProfile.CATHASAPP, "Category App, Appearance");
rankingParameters.put(plasmaSearchRankingProfile.CATHASAUDIO, "Category Audio Appearance");
rankingParameters.put(plasmaSearchRankingProfile.CATHASIMAGE, "Category Image Appearance");
rankingParameters.put(plasmaSearchRankingProfile.CATHASVIDEO, "Category Video Appearance");
rankingParameters.put(plasmaSearchRankingProfile.CATINDEXOF, "Category Index Page");
rankingParameters.put(plasmaSearchRankingProfile.DATE, "Date");
rankingParameters.put(plasmaSearchRankingProfile.DESCRCOMPINTOPLIST, "Description Comp. Appears In Toplist");
rankingParameters.put(plasmaSearchRankingProfile.DOMLENGTH, "Domain Length");
rankingParameters.put(plasmaSearchRankingProfile.HITCOUNT, "Hit Count");
rankingParameters.put(plasmaSearchRankingProfile.LLOCAL, "Links To Local Domain");
rankingParameters.put(plasmaSearchRankingProfile.LOTHER, "Links To Other Domain");
rankingParameters.put(plasmaSearchRankingProfile.PHRASESINTEXT, "Phrases In Text");
rankingParameters.put(plasmaSearchRankingProfile.POSINTEXT, "Position In Text");
rankingParameters.put(plasmaSearchRankingProfile.POSOFPHRASE, "Position Of Phrase");
rankingParameters.put(plasmaSearchRankingProfile.PREFER, "Application Of Prefer Pattern");
rankingParameters.put(plasmaSearchRankingProfile.URLCOMPINTOPLIST, "URL Component Appears In Toplist");
rankingParameters.put(plasmaSearchRankingProfile.URLCOMPS, "URL Components");
rankingParameters.put(plasmaSearchRankingProfile.URLLENGTH, "URL Length");
rankingParameters.put(plasmaSearchRankingProfile.WORDDISTANCE, "Word Distance");
rankingParameters.put(plasmaSearchRankingProfile.WORDSINTEXT, "Words In Text");
rankingParameters.put(plasmaSearchRankingProfile.WORDSINTITLE, "Words In Title");
rankingParameters.put(plasmaSearchRankingProfile.YBR, "YaCy Block Rank");
}
private static serverObjects defaultValues() {
final serverObjects prop = new serverObjects();
prop.put("search", "");
prop.put("num-results", 0);
prop.put("excluded", 0);
prop.put("combine", 0);
prop.put("resultbottomline", 0);
prop.put("localCount", 10);
prop.put("localWDist", 999);
//prop.put("globalChecked", "checked");
prop.put("globalChecked", 0);
prop.put("postsortChecked", 1);
prop.put("localTime", 6);
prop.put("results", "");
prop.put("urlmaskoptions", 0);
prop.put("urlmaskoptions_urlmaskfilter", ".*");
prop.put("jumpToCursor", 1);
return prop;
}
private static void putRanking(final serverObjects prop, final plasmaSearchRankingProfile rankingProfile, final String prefix) {
putRanking(prop, rankingProfile.preToExternalMap(prefix), prefix, "Pre");
putRanking(prop, rankingProfile.postToExternalMap(prefix), prefix, "Post");
}
private static void putRanking(final serverObjects prop, final Map ranking, final String prefix, final String attrExtension) {
prop.put("attr" + attrExtension, ranking.size());
Iterator it = ranking.keySet().iterator();
String key;
int i, j = 0;
while (it.hasNext()) {
key = (String)it.next();
prop.put("attr" + attrExtension + "_" + j + "_name", rankingParameters.get(key.substring(prefix.length())));
prop.put("attr" + attrExtension + "_" + j + "_nameorg", key);
prop.put("attr" + attrExtension + "_" + j + "_select", maxRankingRange);
for (i=0; i<maxRankingRange; i++) {
prop.put("attr" + attrExtension + "_" + j + "_select_" + i + "_nameorg", key);
prop.put("attr" + attrExtension + "_" + j + "_select_" + i + "_value", i);
try {
prop.put("attr" + attrExtension + "_" + j + "_select_" + i + "_checked",
(i == Integer.valueOf((String)ranking.get(key)).intValue()) ? 1 : 0);
} catch (NumberFormatException e) {
prop.put("attr" + attrExtension + "_" + j + "_select_" + i + "_checked", 0);
}
}
prop.put("attr" + attrExtension + "_" + j + "_value",
Integer.valueOf((String)ranking.get(key)).intValue());
j++;
}
}
public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
final plasmaSwitchboard sb = (plasmaSwitchboard) env;
// case if no values are requested
if (post == null || env == null) {
// we create empty entries for template strings
final serverObjects prop = defaultValues();
plasmaSearchRankingProfile ranking = (sb.getConfig("rankingProfile", "").length() == 0) ? new plasmaSearchRankingProfile("text") : new plasmaSearchRankingProfile("", crypt.simpleDecode(sb.getConfig("rankingProfile", ""), null));
//prop.putAll(ranking.toExternalMap("local"));
putRanking(prop, ranking, "local");
return prop;
}
if (post.containsKey("EnterRanking")) {
plasmaSearchRankingProfile ranking = new plasmaSearchRankingProfile("local", post.toString());
sb.setConfig("rankingProfile", crypt.simpleEncode(ranking.toExternalString()));
final serverObjects prop = defaultValues();
//prop.putAll(ranking.toExternalMap("local"));
putRanking(prop, ranking, "local");
return prop;
}
if (post.containsKey("ResetRanking")) {
sb.setConfig("rankingProfile", "");
plasmaSearchRankingProfile ranking = new plasmaSearchRankingProfile("text");
final serverObjects prop = defaultValues();
//prop.putAll(ranking.toExternalMap("local"));
putRanking(prop, ranking, "local");
return prop;
}
boolean global = post.get("global", "").equals("on");
boolean postsort = post.get("postsort", "").equals("on");
final boolean indexDistributeGranted = sb.getConfig("allowDistributeIndex", "true").equals("true");
final boolean indexReceiveGranted = sb.getConfig("allowReceiveIndex", "true").equals("true");
if (!indexDistributeGranted || !indexReceiveGranted) { global = false; }
int wdist = Integer.parseInt(post.get("localWDist", "999"));
String querystring = post.get("search", "").trim();
if ((querystring.length() > 2) && (querystring.charAt(0) == '"') && (querystring.charAt(querystring.length() - 1) == '"')) {
querystring = querystring.substring(1, querystring.length() - 1).trim();
wdist = 1;
}
if (sb.facilityDB != null) try { sb.facilityDB.update("zeitgeist", querystring, post); } catch (Exception e) {}
final TreeSet query = plasmaSearchQuery.cleanQuery(querystring);
// filter out stopwords
final TreeSet filtered = kelondroMSetTools.joinConstructive(query, plasmaSwitchboard.stopwords);
if (filtered.size() > 0) {
kelondroMSetTools.excludeDestructive(query, plasmaSwitchboard.stopwords);
}
boolean authenticated = sb.adminAuthenticated(header) >= 2;
// if a minus-button was hit, remove a special reference first
if (post.containsKey("deleteref")) {
if (!sb.verifyAuthentication(header, true)) {
final serverObjects prop = new serverObjects();
prop.put("AUTHENTICATE", "admin log-in"); // force log-in
return prop;
}
final String delHash = post.get("deleteref", "");
sb.wordIndex.removeWordReferences(query, delHash);
}
// prepare search order
final int count = Integer.parseInt(post.get("localCount", "10"));
final long searchtime = 1000 * Long.parseLong(post.get("localTime", "10"));
final boolean yacyonline = ((yacyCore.seedDB != null) &&
(yacyCore.seedDB.mySeed != null) &&
(yacyCore.seedDB.mySeed.getAddress() != null));
String urlmask = "";
if (post.containsKey("urlmask") && post.get("urlmask").equals("no")) {
urlmask = ".*";
} else {
urlmask = (post.containsKey("urlmaskfilter")) ? (String) post.get("urlmaskfilter") : ".*";
}
// do the search
plasmaSearchQuery thisSearch = new plasmaSearchQuery(query, wdist, "", plasmaSearchQuery.CONTENTDOM_TEXT, count, searchtime, urlmask,
((global) && (yacyonline) && (!(env.getConfig("last-search","").equals(querystring)))) ? plasmaSearchQuery.SEARCHDOM_GLOBALDHT : plasmaSearchQuery.SEARCHDOM_LOCAL,
"", 20, plasmaSearchQuery.catchall_constraint);
plasmaSearchRankingProfile localRanking = new plasmaSearchRankingProfile("local", post.toString());
plasmaSearchTimingProfile localTiming = new plasmaSearchTimingProfile(4 * thisSearch.maximumTime / 10, thisSearch.wantedResults);
plasmaSearchTimingProfile remoteTiming = new plasmaSearchTimingProfile(6 * thisSearch.maximumTime / 10, thisSearch.wantedResults);
final serverObjects prop = new serverObjects();//sb.searchFromLocal(thisSearch, localRanking, localTiming, remoteTiming, postsort, (String) header.get("CLIENTIP"));
plasmaSearchResults results = sb.searchFromLocal(thisSearch, localRanking, localTiming, remoteTiming, postsort, (String) header.get("CLIENTIP"));
//prop.put("references", 0);
URL wordURL=null;
prop.put("num-results_totalcount", results.getTotalcount());
prop.put("num-results_filteredcount", results.getFilteredcount());
prop.put("num-results_orderedcount", results.getOrderedcount());
prop.put("num-results_linkcount", results.getLinkcount());
prop.put("type_results", 0);
if(results.numResults()!=0){
//we've got results
prop.put("num-results_totalcount", results.getTotalcount());
prop.put("num-results_filteredcount", results.getFilteredcount());
prop.put("num-results_orderedcount", Integer.toString(results.getOrderedcount())); //why toString?
prop.put("num-results_globalresults", results.getGlobalresults());
for(int i=0;i<results.numResults();i++){
plasmaSearchResults.searchResult result=results.getResult(i);
try {
prop.put("type_results_" + i + "_authorized_recommend", (yacyCore.newsPool.getSpecific(yacyNewsPool.OUTGOING_DB, yacyNewsPool.CATEGORY_SURFTIPP_ADD, "url", result.getUrl()) == null) ? 1 : 0);
} catch (IOException e) {}
prop.put("type_results_" + i + "_authorized_recommend_deletelink", "/yacysearch.html?search=" + results.getFormerSearch() + "&Enter=Search&count=" + results.getQuery().wantedResults + "&order=" + crypt.simpleEncode(results.getRanking().toExternalString()) + "&resource=local&time=3&deleteref=" + result.getUrlhash() + "&urlmaskfilter=.*");
prop.put("type_results_" + i + "_authorized_recommend_recommendlink", "/yacysearch.html?search=" + results.getFormerSearch() + "&Enter=Search&count=" + results.getQuery().wantedResults + "&order=" + crypt.simpleEncode(results.getRanking().toExternalString()) + "&resource=local&time=3&recommendref=" + result.getUrlhash() + "&urlmaskfilter=.*");
prop.put("type_results_" + i + "_authorized_urlhash", result.getUrlhash());
prop.put("type_results_" + i + "_description", result.getUrlentry().comp().title());
prop.put("type_results_" + i + "_url", result.getUrl());
prop.put("type_results_" + i + "_urlhash", result.getUrlhash());
prop.put("type_results_" + i + "_urlhexhash", yacySeed.b64Hash2hexHash(result.getUrlhash()));
prop.put("type_results_" + i + "_urlname", nxTools.shortenURLString(result.getUrlname(), 120));
prop.put("type_results_" + i + "_date", plasmaSwitchboard.dateString(result.getUrlentry().moddate()));
prop.put("type_results_" + i + "_ybr", plasmaSearchPreOrder.ybr(result.getUrlentry().hash()));
prop.put("type_results_" + i + "_size", Long.toString(result.getUrlentry().size()));
try {
prop.put("type_results_" + i + "_words", URLEncoder.encode(results.getQuery().queryWords.toString(),"UTF-8"));
} catch (UnsupportedEncodingException e) {}
prop.put("type_results_" + i + "_former", results.getFormerSearch());
prop.put("type_results_" + i + "_rankingprops", result.getUrlentry().word().toPropertyForm() + ", domLengthEstimated=" + plasmaURL.domLengthEstimation(result.getUrlhash()) +
((plasmaURL.probablyRootURL(result.getUrlhash())) ? ", probablyRootURL" : "") +
(((wordURL = plasmaURL.probablyWordURL(result.getUrlhash(), results.getQuery().words(""))) != null) ? ", probablyWordURL=" + wordURL.toNormalform() : ""));
// adding snippet if available
if (result.hasSnippet()) {
prop.put("type_results_" + i + "_snippet", 1);
prop.putASIS("type_results_" + i + "_snippet_text", result.getSnippet().getLineMarked(results.getQuery().queryHashes));//FIXME: the ASIS should not be needed, if there is no html in .java
} else {
prop.put("type_results_" + i + "_snippet", 0);
prop.put("type_results_" + i + "_snippet_text", "");
}
prop.put("type_results", results.numResults());
prop.put("references", results.getReferences());
prop.put("num-results_linkcount", Integer.toString(results.numResults()));
}
}
putRanking(prop, localRanking, "local");
// remember the last search expression
env.setConfig("last-search", querystring);
// process result of search
prop.put("type_resultbottomline", 0);
if (filtered.size() > 0){
prop.put("excluded", 1);
prop.put("excluded_stopwords", filtered.toString());
} else {
prop.put("excluded", 0);
}
if (prop == null || prop.size() == 0) {
prop.put("num-results", 0);
} else {
final Object[] references = (Object[]) prop.get("type_references", new String[0]);
prop.put("num-results", 1);
int hintcount = references.length;
if (hintcount > 0) {
if (hintcount > 16) { hintcount = 16; }
prop.put("type_combine", 1);
String word;
for (int i = 0; i < hintcount; i++) {
word = (String) references[i];
if (word != null) {
prop.put("type_combine_words_" + i + "_word", word);
prop.put("type_combine_words_" + i + "_newsearch", post.get("search", "").replace(' ', '+') + "+" + word);
prop.put("type_combine_words_" + i + "_count", count);
prop.put("type_combine_words_" + i + "_ranking", localRanking.toExternalURLGet("local").toString());
prop.put("type_combine_words_" + i + "_resource", ((global) ? "global" : "local"));
prop.put("type_combine_words_" + i + "_time", (searchtime / 1000));
}
prop.put("type_combine_words", i);
}
}
}
if (urlmask.equals(".*")) {
prop.put("urlmaskoptions", 0);
} else {
prop.put("urlmaskoptions", 1);
}
// if user is not authenticated, he may not vote for URLs
int linkcount = Integer.parseInt(prop.get("num-results_linkcount", "0"));
for (int i=0; i<linkcount; i++)
prop.put("type_results_" + i + "_authorized", (authenticated) ? 1 : 0);
prop.put("jumpToCursor", (linkcount > 0) ? 0 : 1);
prop.put("urlmaskoptions_urlmaskfilter", urlmask);
prop.put("type", "0");
prop.put("localCount", count);
prop.put("localWDist", wdist);
prop.put("globalChecked", (global) ? 1 : 0);
prop.put("postsortChecked", (postsort) ? 1 : 0);
prop.put("localTime", searchtime/1000);
prop.put("search", post.get("search", ""));
prop.putAll(localRanking.toExternalMap("local"));
// 'enrich search' variables
prop.put("num-results_former", post.get("search", ""));
prop.put("num-results_time", searchtime / 1000);
prop.put("num-results_count", count);
prop.put("num-results_resource", (global) ? "global" : "local");
prop.put("num-results_ranking", localRanking.toExternalURLGet("local").toString());
// return rewrite properties
prop.putASIS("promoteSearchPageGreeting", env.getConfig("promoteSearchPageGreeting", ""));
// adding some additional properties needed for the rss feed
String hostName = (String) header.get("Host","localhost");
if (hostName.indexOf(":") == -1) hostName += ":" + serverCore.getPortNr(env.getConfig("port","8080"));
prop.put("rssYacyImageURL","http://" + hostName + "/env/grafics/yacy.gif");
return prop;
}
}
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