// ysearchitem.java // (C) 2004-2008 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany // first published 2004 on http://yacy.net // // This is a part of YaCy, a peer-to-peer based web search engine // // $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $ // $LastChangedRevision: 1986 $ // $LastChangedBy: orbiter $ // // LICENSE // // 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 import java.util.TreeSet; import de.anomic.http.httpHeader; import de.anomic.index.indexWord; import de.anomic.kelondro.kelondroBitfield; import de.anomic.kelondro.kelondroMSetTools; import de.anomic.plasma.plasmaCondenser; import de.anomic.plasma.plasmaSearchEvent; import de.anomic.plasma.plasmaSearchQuery; import de.anomic.plasma.plasmaSearchRankingProfile; import de.anomic.plasma.plasmaSwitchboard; import de.anomic.server.serverCore; import de.anomic.server.serverObjects; import de.anomic.server.serverSwitch; import de.anomic.server.logging.serverLog; import de.anomic.tools.yFormatter; import de.anomic.xml.RSSFeed; import de.anomic.xml.RSSMessage; import de.anomic.yacy.yacyURL; public class result { public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) { final plasmaSwitchboard sb = (plasmaSwitchboard) env; sb.localSearchLastAccess = System.currentTimeMillis(); boolean searchAllowed = sb.getConfigBool("publicSearchpage", true) || sb.verifyAuthentication(header, false); boolean authenticated = sb.adminAuthenticated(header) >= 2; int display = (post == null) ? 0 : post.getInt("display", 0); if ((display == 1) && (!authenticated)) display = 0; int input = (post == null) ? 2 : post.getInt("input", 2); String promoteSearchPageGreeting = env.getConfig("promoteSearchPageGreeting", ""); if (env.getConfigBool("promoteSearchPageGreeting.useNetworkName", false)) promoteSearchPageGreeting = env.getConfig("network.unit.description", ""); if (promoteSearchPageGreeting.length() == 0) promoteSearchPageGreeting = "P2P WEB SEARCH"; String client = (String) header.get(httpHeader.CONNECTION_PROP_CLIENTIP); // the search client who initiated the search // get query String querystring = (post == null) ? "" : post.get("search", "").trim(); final serverObjects prop = new serverObjects(); boolean rss = (post == null) ? false : post.get("rss", "false").equals("true"); if ((post == null) || (env == null) || (querystring.length() == 0) || (!searchAllowed)) { // we create empty entries for template strings prop.put("searchagain", "0"); prop.put("input", input); prop.put("display", display); prop.put("input_input", input); prop.put("input_display", display); prop.put("promoteSearchPageGreeting", promoteSearchPageGreeting); prop.put("input_former", ""); prop.put("former", ""); prop.put("input_count", "10"); prop.put("input_offset", "0"); prop.put("input_resource", "global"); prop.put("input_urlmaskfilter", ".*"); prop.put("input_prefermaskfilter", ""); prop.put("input_indexof", "off"); prop.put("input_constraint", ""); prop.put("input_cat", "href"); prop.put("input_depth", "0"); prop.put("input_contentdom", "text"); prop.put("input_contentdomCheckText", "1"); prop.put("input_contentdomCheckAudio", "0"); prop.put("input_contentdomCheckVideo", "0"); prop.put("input_contentdomCheckImage", "0"); prop.put("input_contentdomCheckApp", "0"); prop.put("excluded", "0"); prop.put("results", ""); prop.put("resultTable", "0"); prop.put("num-results", searchAllowed ? "0" : "4"); return prop; } // collect search attributes int maxDistance = Integer.MAX_VALUE; if ((querystring.length() > 2) && (querystring.charAt(0) == '"') && (querystring.charAt(querystring.length() - 1) == '"')) { querystring = querystring.substring(1, querystring.length() - 1).trim(); maxDistance = 1; } if (sb.facilityDB != null) try { sb.facilityDB.update("zeitgeist", querystring, post); } catch (Exception e) {} int itemsPerPage = post.getInt("count", 10); int offset = post.getInt("offset", 0); boolean global = (post == null) ? true : post.get("resource", "global").equals("global"); final boolean indexof = post.get("indexof","").equals("on"); String urlmask = ""; if (post.containsKey("urlmask") && post.get("urlmask").equals("no")) { urlmask = ".*"; } else { urlmask = (post.containsKey("urlmaskfilter")) ? (String) post.get("urlmaskfilter") : ".*"; } String prefermask = post.get("prefermaskfilter", ""); if ((prefermask.length() > 0) && (prefermask.indexOf(".*") < 0)) prefermask = ".*" + prefermask + ".*"; kelondroBitfield constraint = ((post.containsKey("constraint")) && (post.get("constraint", "").length() > 0)) ? new kelondroBitfield(4, post.get("constraint", "______")) : null; if (indexof) { constraint = new kelondroBitfield(4); constraint.set(plasmaCondenser.flag_cat_indexof, true); } int domainzone = post.getInt("zone", yacyURL.TLD_any_zone_filter); // SEARCH //final boolean indexDistributeGranted = sb.getConfig(plasmaSwitchboard.INDEX_DIST_ALLOW, "true").equals("true"); //final boolean indexReceiveGranted = sb.getConfig("allowReceiveIndex", "true").equals("true"); //final boolean offline = yacyCore.seedDB.mySeed().isVirgin(); final boolean clustersearch = sb.isRobinsonMode() && (sb.getConfig("cluster.mode", "").equals("privatecluster") || sb.getConfig("cluster.mode", "").equals("publiccluster")); //if (offline || !indexDistributeGranted || !indexReceiveGranted) { global = false; } if (clustersearch) global = true; // switches search on, but search target is limited to cluster nodes // find search domain int contentdomCode = plasmaSearchQuery.contentdomParser(post.get("contentdom", "text")); // patch until better search profiles are available if ((contentdomCode != plasmaSearchQuery.CONTENTDOM_TEXT) && (itemsPerPage <= 32)) itemsPerPage = 32; // check the search tracker TreeSet trackerHandles = sb.localSearchTracker.get(client); if (trackerHandles == null) trackerHandles = new TreeSet(); boolean block = false; if (trackerHandles.tailSet(new Long(System.currentTimeMillis() - 3000)).size() > 1) try { Thread.sleep(3000); block = true; } catch (InterruptedException e) { e.printStackTrace(); } if (trackerHandles.tailSet(new Long(System.currentTimeMillis() - 60000)).size() > 12) try { Thread.sleep(10000); block = true; } catch (InterruptedException e) { e.printStackTrace(); } if (trackerHandles.tailSet(new Long(System.currentTimeMillis() - 600000)).size() > 36) try { Thread.sleep(30000); block = true; } catch (InterruptedException e) { e.printStackTrace(); } if ((!block) && (post.get("cat", "href").equals("href"))) { final TreeSet[] query = plasmaSearchQuery.cleanQuery(querystring); // converts also umlaute boolean near = (query[0].contains("near")) && (querystring.indexOf("NEAR") >= 0); if (near) { query[0].remove("near"); } plasmaSearchRankingProfile ranking = sb.getRanking(); if (near) { ranking.coeff_worddistance = plasmaSearchRankingProfile.COEFF_MAX; } // filter out stopwords final TreeSet filtered = kelondroMSetTools.joinConstructive(query[0], plasmaSwitchboard.stopwords); if (filtered.size() > 0) { kelondroMSetTools.excludeDestructive(query[0], plasmaSwitchboard.stopwords); } // prepare search properties final boolean yacyonline = ((sb.webIndex.seedDB != null) && (sb.webIndex.seedDB.mySeed() != null) && (sb.webIndex.seedDB.mySeed().getPublicAddress() != null)); final boolean globalsearch = (global) && (yacyonline) && (sb.getConfigBool(plasmaSwitchboard.INDEX_RECEIVE_ALLOW, false)); // do the search TreeSet queryHashes = indexWord.words2hashes(query[0]); plasmaSearchQuery theQuery = new plasmaSearchQuery( querystring, queryHashes, indexWord.words2hashes(query[1]), ranking, maxDistance, prefermask, contentdomCode, true, itemsPerPage, offset, urlmask, (clustersearch && globalsearch) ? plasmaSearchQuery.SEARCHDOM_CLUSTERALL : ((globalsearch) ? plasmaSearchQuery.SEARCHDOM_GLOBALDHT : plasmaSearchQuery.SEARCHDOM_LOCAL), "", 20, constraint, true, domainzone, client); // tell all threads to do nothing for a specific time sb.intermissionAllThreads(3000); // filter out words that appear in bluelist theQuery.filterOut(plasmaSwitchboard.blueList); // log serverLog.logInfo("LOCAL_SEARCH", "INIT WORD SEARCH: " + theQuery.queryString + ":" + theQuery.queryHashes + " - " + theQuery.neededResults() + " links to be computed, " + theQuery.displayResults() + " lines to be displayed"); RSSFeed.channels(RSSFeed.LOCALSEARCH).addMessage(new RSSMessage("Local Search Request", theQuery.queryString, "")); long timestamp = System.currentTimeMillis(); // create a new search event if (plasmaSearchEvent.getEvent(theQuery.id(false)) == null) { theQuery.setOffset(0); // in case that this is a new search, always start without a offset offset = 0; } plasmaSearchEvent theSearch = plasmaSearchEvent.getEvent(theQuery, ranking, sb.webIndex, sb.crawlResults, (sb.isRobinsonMode()) ? sb.clusterhashes : null, false); // generate result object serverLog.logFine("LOCAL_SEARCH", "SEARCH TIME AFTER ORDERING OF SEARCH RESULTS: " + ((System.currentTimeMillis() - timestamp) / 1000) + " seconds"); serverLog.logFine("LOCAL_SEARCH", "SEARCH TIME AFTER RESULT PREPARATION: " + ((System.currentTimeMillis() - timestamp) / 1000) + " seconds"); // calc some more cross-reference serverLog.logFine("LOCAL_SEARCH", "SEARCH TIME AFTER XREF PREPARATION: " + ((System.currentTimeMillis() - timestamp) / 1000) + " seconds"); // log serverLog.logInfo("LOCAL_SEARCH", "EXIT WORD SEARCH: " + theQuery.queryString + " - " + (theSearch.getRankingResult().getLocalResourceSize() + theSearch.getRankingResult().getRemoteResourceSize()) + " links found, " + ((System.currentTimeMillis() - timestamp) / 1000) + " seconds"); // prepare search statistics theQuery.resultcount = theSearch.getRankingResult().getLocalResourceSize() + theSearch.getRankingResult().getRemoteResourceSize(); theQuery.searchtime = System.currentTimeMillis() - timestamp; theQuery.urlretrievaltime = theSearch.getURLRetrievalTime(); theQuery.snippetcomputationtime = theSearch.getSnippetComputationTime(); sb.localSearches.add(theQuery); // update the search tracker trackerHandles.add(theQuery.handle); sb.localSearchTracker.put(client, trackerHandles); int totalcount = theSearch.getRankingResult().getLocalResourceSize() + theSearch.getRankingResult().getRemoteResourceSize(); prop.put("num-results_offset", offset); prop.put("num-results_itemscount", "0"); prop.put("num-results_itemsPerPage", itemsPerPage); prop.put("num-results_totalcount", yFormatter.number(totalcount, !rss)); prop.put("num-results_globalresults", (globalsearch) ? "1" : "0"); prop.put("num-results_globalresults_localResourceSize", yFormatter.number(theSearch.getRankingResult().getLocalResourceSize(), !rss)); prop.put("num-results_globalresults_remoteResourceSize", yFormatter.number(theSearch.getRankingResult().getRemoteResourceSize(), !rss)); prop.put("num-results_globalresults_remoteIndexCount", yFormatter.number(theSearch.getRankingResult().getRemoteIndexCount(), !rss)); prop.put("num-results_globalresults_remotePeerCount", yFormatter.number(theSearch.getRankingResult().getRemotePeerCount(), !rss)); // generate the search result lines; they will be produced by another servlet for (int i = 0; i < theQuery.displayResults(); i++) { prop.put("results_" + i + "_item", offset + i); prop.put("results_" + i + "_eventID", theQuery.id(false)); prop.put("results_" + i + "_ID", theQuery.id(false).substring(1,6)); } prop.put("results", theQuery.displayResults()); prop.put("resultTable", (contentdomCode <= 1) ? "0" : "1"); prop.put("eventID", theQuery.id(false)); // for bottomline prop.put("ID", theQuery.id(false).substring(1,6)); // for bottomline // process result of search if (filtered.size() > 0) { prop.put("excluded", "1"); prop.putHTML("excluded_stopwords", filtered.toString()); } else { prop.put("excluded", "0"); } if (prop == null || prop.isEmpty()) { if (post.get("search", "").length() < 3) { prop.put("num-results", "2"); // no results - at least 3 chars } else { prop.put("num-results", "1"); // no results } } else { prop.put("num-results", "3"); } prop.put("input_cat", "href"); prop.put("input_depth", "0"); // 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("searchBaseURL", "http://" + hostName + "/yacysearch.html"); prop.put("rssYacyImageURL", "http://" + hostName + "/env/grafics/yacy.gif"); } prop.put("searchagain", global ? "1" : "0"); prop.put("input", input); prop.put("display", display); prop.put("input_input", input); prop.put("input_display", display); prop.put("promoteSearchPageGreeting", promoteSearchPageGreeting); prop.putHTML("input_former", querystring); //prop.put("former", post.get("search", "")); prop.put("input_count", itemsPerPage); prop.put("input_offset", offset); prop.put("input_resource", global ? "global" : "local"); prop.putHTML("input_urlmaskfilter", urlmask); prop.putHTML("input_prefermaskfilter", prefermask); prop.put("input_indexof", (indexof) ? "on" : "off"); prop.put("input_constraint", (constraint == null) ? "" : constraint.exportB64()); prop.put("input_contentdom", post.get("contentdom", "text")); prop.put("input_contentdomCheckText", (contentdomCode == plasmaSearchQuery.CONTENTDOM_TEXT) ? "1" : "0"); prop.put("input_contentdomCheckAudio", (contentdomCode == plasmaSearchQuery.CONTENTDOM_AUDIO) ? "1" : "0"); prop.put("input_contentdomCheckVideo", (contentdomCode == plasmaSearchQuery.CONTENTDOM_VIDEO) ? "1" : "0"); prop.put("input_contentdomCheckImage", (contentdomCode == plasmaSearchQuery.CONTENTDOM_IMAGE) ? "1" : "0"); prop.put("input_contentdomCheckApp", (contentdomCode == plasmaSearchQuery.CONTENTDOM_APP) ? "1" : "0"); // for RSS: don't HTML encode some elements prop.putHTML("rss_query", querystring, true); prop.put("rss_queryenc", yacyURL.escape(querystring.replace(' ', '+'))); sb.localSearchLastAccess = System.currentTimeMillis(); // return rewrite properties return prop; } /* private static String navhidden(int page, int display, plasmaSearchQuery theQuery) { return "" + "" + "" + "" + "" + "" + "" + "" + "" + "" + ""; } */ }