// yacysearch.java // ----------------------- // part of the AnomicHTTPD caching proxy // (C) by Michael Peter Christen; mc@yacy.net // first published on http://www.anomic.de // Frankfurt, Germany, 2004 // // $LastChangedDate$ // $LastChangedRevision$ // $LastChangedBy$ // // 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 // // You must compile this file with // javac -classpath .:../classes yacysearch.java // if the shell's current path is HTROOT import java.io.IOException; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.SortedSet; import java.util.TreeSet; import java.util.regex.Pattern; import java.util.regex.PatternSyntaxException; import net.yacy.cora.document.ASCII; import net.yacy.cora.document.RSSMessage; import net.yacy.cora.document.UTF8; import net.yacy.cora.protocol.Domains; import net.yacy.cora.protocol.HeaderFramework; import net.yacy.cora.protocol.RequestHeader; import net.yacy.cora.protocol.ResponseHeader; import net.yacy.cora.services.federated.yacy.CacheStrategy; import net.yacy.document.Autotagging.Metatag; import net.yacy.document.Autotagging.Vocabulary; import net.yacy.document.Condenser; import net.yacy.document.Document; import net.yacy.document.LibraryProvider; import net.yacy.document.Parser; import net.yacy.document.geolocalization.Location; import net.yacy.kelondro.data.meta.DigestURI; import net.yacy.kelondro.data.meta.URIMetadataRow; import net.yacy.kelondro.data.word.Word; import net.yacy.kelondro.index.HandleSet; import net.yacy.kelondro.logging.Log; import net.yacy.kelondro.order.Bitfield; import net.yacy.kelondro.util.EventTracker; import net.yacy.kelondro.util.Formatter; import net.yacy.kelondro.util.ISO639; import net.yacy.kelondro.util.MemoryControl; import net.yacy.kelondro.util.SetTools; import net.yacy.peers.EventChannel; import net.yacy.peers.NewsPool; import net.yacy.peers.graphics.ProfilingGraph; import net.yacy.search.Switchboard; import net.yacy.search.SwitchboardConstants; import net.yacy.search.index.Segment; import net.yacy.search.index.Segments; import net.yacy.search.query.AccessTracker; import net.yacy.search.query.QueryParams; import net.yacy.search.query.SearchEvent; import net.yacy.search.query.SearchEventCache; import net.yacy.search.ranking.RankingProfile; import net.yacy.search.snippet.ContentDomain; import de.anomic.data.DidYouMean; import de.anomic.data.UserDB; import de.anomic.data.ymark.YMarkTables; import de.anomic.server.serverCore; import de.anomic.server.serverObjects; import de.anomic.server.serverSwitch; import de.anomic.server.servletProperties; public class yacysearch { public static serverObjects respond( final RequestHeader header, final serverObjects post, final serverSwitch env) { final Switchboard sb = (Switchboard) env; sb.localSearchLastAccess = System.currentTimeMillis(); final boolean searchAllowed = sb.getConfigBool("publicSearchpage", true) || sb.verifyAuthentication(header); boolean authenticated = sb.adminAuthenticated(header) >= 2; if ( !authenticated ) { final UserDB.Entry user = sb.userDB.getUser(header); authenticated = (user != null && user.hasRight(UserDB.AccessRight.EXTENDED_SEARCH_RIGHT)); } final boolean localhostAccess = sb.accessFromLocalhost(header); final String promoteSearchPageGreeting = (env.getConfigBool(SwitchboardConstants.GREETING_NETWORK_NAME, false)) ? env.getConfig( "network.unit.description", "") : env.getConfig(SwitchboardConstants.GREETING, ""); final String client = header.get(HeaderFramework.CONNECTION_PROP_CLIENTIP); // the search client who initiated the search // get query final String originalquerystring = (post == null) ? "" : post.get("query", post.get("search", "")).trim(); String querystring = originalquerystring.replace('+', ' ').replace('*', ' ').trim(); CacheStrategy snippetFetchStrategy = (post == null) ? null : CacheStrategy.parse(post.get("verify", "cacheonly")); final servletProperties prop = new servletProperties(); prop.put("topmenu", sb.getConfigBool("publicTopmenu", true) ? 1 : 0); //get focus option final boolean focus = (post == null) ? true : post.get("focus", "1").equals("1"); prop.put("focus", focus ? 1 : 0); // produce vocabulary navigation sidebars Collection vocabularies = LibraryProvider.autotagging.getVocabularies(); int j = 0; for (Vocabulary v: vocabularies) { prop.put("sidebarVocabulary_" + j + "_vocabulary", v.getName()); j++; } prop.put("sidebarVocabulary", j); // get segment Segment indexSegment = null; if ( post != null && post.containsKey("segment") ) { final String segmentName = post.get("segment"); if ( sb.indexSegments.segmentExist(segmentName) ) { indexSegment = sb.indexSegments.segment(segmentName); } } else { // take default segment indexSegment = sb.indexSegments.segment(Segments.Process.PUBLIC); } final String EXT = header.get("EXT", ""); final boolean rss = EXT.equals("rss"); final boolean json = EXT.equals("json"); prop.put("promoteSearchPageGreeting", promoteSearchPageGreeting); prop.put( "promoteSearchPageGreeting.homepage", sb.getConfig(SwitchboardConstants.GREETING_HOMEPAGE, "")); prop.put( "promoteSearchPageGreeting.smallImage", sb.getConfig(SwitchboardConstants.GREETING_SMALL_IMAGE, "")); if ( post == null || indexSegment == null || env == null || !searchAllowed ) { // we create empty entries for template strings prop.put("searchagain", "0"); prop.put("former", ""); prop.put("count", "10"); prop.put("offset", "0"); prop.put("resource", "global"); prop.put("urlmaskfilter", (post == null) ? ".*" : post.get("urlmaskfilter", ".*")); prop.put("prefermaskfilter", (post == null) ? "" : post.get("prefermaskfilter", "")); prop.put("tenant", (post == null) ? "" : post.get("tenant", "")); prop.put("indexof", "off"); prop.put("constraint", ""); prop.put("cat", "href"); prop.put("depth", "0"); prop.put( "search.verify", (post == null) ? sb.getConfig("search.verify", "iffresh") : post.get("verify", "iffresh")); prop.put( "search.navigation", (post == null) ? sb.getConfig("search.navigation", "all") : post.get("nav", "all")); prop.put("contentdom", "text"); prop.put("contentdomCheckText", "1"); prop.put("contentdomCheckAudio", "0"); prop.put("contentdomCheckVideo", "0"); prop.put("contentdomCheckImage", "0"); prop.put("contentdomCheckApp", "0"); prop.put("excluded", "0"); prop.put("results", ""); prop.put("resultTable", "0"); prop.put("num-results", searchAllowed ? "0" : "4"); prop.put("num-results_totalcount", 0); prop.put("num-results_offset", 0); prop.put("num-results_itemsPerPage", 10); prop.put("geoinfo", "0"); prop.put("rss_queryenc", ""); prop.put("meanCount", 5); return prop; } // check for JSONP if ( post.containsKey("callback") ) { final String jsonp = post.get("callback") + "(["; prop.put("jsonp-start", jsonp); prop.put("jsonp-end", "])"); } else { prop.put("jsonp-start", ""); prop.put("jsonp-end", ""); } // Adding CORS Access header for yacysearch.rss output if ( rss ) { final ResponseHeader outgoingHeader = new ResponseHeader(); outgoingHeader.put(HeaderFramework.CORS_ALLOW_ORIGIN, "*"); prop.setOutgoingHeader(outgoingHeader); } // collect search attributes int maximumRecords = Math.min( (authenticated) ? (snippetFetchStrategy != null && snippetFetchStrategy.isAllowedToFetchOnline() ? 100 : 5000) : (snippetFetchStrategy != null && snippetFetchStrategy.isAllowedToFetchOnline() ? 20 : 1000), post.getInt("maximumRecords", post.getInt("count", 10))); // SRU syntax with old property as alternative int startRecord = post.getInt("startRecord", post.getInt("offset", 0)); boolean global = post.get("resource", "local").equals("global") && sb.peers.sizeConnected() > 0; final boolean indexof = (post != null && post.get("indexof", "").equals("on")); final String originalUrlMask; if ( post.containsKey("urlmaskfilter") ) { originalUrlMask = post.get("urlmaskfilter", ".*"); } else { originalUrlMask = ".*"; } String prefermask = (post == null) ? "" : post.get("prefermaskfilter", ""); if ( !prefermask.isEmpty() && prefermask.indexOf(".*", 0) < 0 ) { prefermask = ".*" + prefermask + ".*"; } Bitfield constraint = (post != null && post.containsKey("constraint") && !post.get("constraint", "").isEmpty()) ? new Bitfield(4, post.get("constraint", "______")) : null; if ( indexof ) { constraint = new Bitfield(4); constraint.set(Condenser.flag_cat_indexof, true); } // SEARCH final boolean clustersearch = sb.isRobinsonMode() && sb.getConfig(SwitchboardConstants.CLUSTER_MODE, "").equals(SwitchboardConstants.CLUSTER_MODE_PUBLIC_CLUSTER); final boolean indexReceiveGranted = sb.getConfigBool(SwitchboardConstants.INDEX_RECEIVE_ALLOW, true) || sb.getConfigBool(SwitchboardConstants.INDEX_RECEIVE_AUTODISABLED, true) || clustersearch; global = global && indexReceiveGranted; // if the user does not want indexes from remote peers, it cannot be a global searchnn final boolean intranetMode = sb.isIntranetMode() || sb.isAllIPMode(); // increase search statistic counter if ( !global ) { // we count only searches on the local peer here, because global searches // are counted on the target peer to preserve privacy of the searcher if ( authenticated ) { // local or authenticated search requests are counted separately // because they are not part of a public available peer statistic sb.searchQueriesRobinsonFromLocal++; } else { // robinson-searches from non-authenticated requests are public // and may be part of the public available statistic sb.searchQueriesRobinsonFromRemote++; } } // find search domain final ContentDomain contentdom = ContentDomain.contentdomParser(post == null ? "text" : post.get("contentdom", "text")); // patch until better search profiles are available if ( contentdom == ContentDomain.TEXT ) { if ( maximumRecords > 50 && maximumRecords < 100 ) { maximumRecords = 10; } } else { if ( maximumRecords <= 32 ) { maximumRecords = 64; } } // check the search tracker TreeSet trackerHandles = sb.localSearchTracker.get(client); if ( trackerHandles == null ) { trackerHandles = new TreeSet(); } boolean block = false; if ( Domains.matchesList(client, sb.networkBlacklist) ) { global = false; if ( snippetFetchStrategy != null ) { snippetFetchStrategy = null; } block = true; Log.logWarning("LOCAL_SEARCH", "ACCESS CONTROL: BLACKLISTED CLIENT FROM " + client + " gets no permission to search"); } else if ( Domains.matchesList(client, sb.networkWhitelist) ) { Log.logInfo("LOCAL_SEARCH", "ACCESS CONTROL: WHITELISTED CLIENT FROM " + client + " gets no search restrictions"); } else if ( !authenticated && !localhostAccess && !intranetMode ) { // in case that we do a global search or we want to fetch snippets, we check for DoS cases synchronized ( trackerHandles ) { final int accInThreeSeconds = trackerHandles.tailSet(Long.valueOf(System.currentTimeMillis() - 3000)).size(); final int accInOneMinute = trackerHandles.tailSet(Long.valueOf(System.currentTimeMillis() - 60000)).size(); final int accInTenMinutes = trackerHandles.tailSet(Long.valueOf(System.currentTimeMillis() - 600000)).size(); // protections against too strong YaCy network load, reduces remote search if ( global ) { if ( accInTenMinutes >= 60 || accInOneMinute >= 6 || accInThreeSeconds >= 1 ) { global = false; Log.logWarning("LOCAL_SEARCH", "ACCESS CONTROL: CLIENT FROM " + client + ": " + accInThreeSeconds + "/3s, " + accInOneMinute + "/60s, " + accInTenMinutes + "/600s, " + " requests, disallowed global search"); } } // protection against too many remote server snippet loads (protects traffic on server) if ( snippetFetchStrategy != null && snippetFetchStrategy.isAllowedToFetchOnline() ) { if ( accInTenMinutes >= 20 || accInOneMinute >= 4 || accInThreeSeconds >= 1 ) { snippetFetchStrategy = CacheStrategy.CACHEONLY; Log.logWarning("LOCAL_SEARCH", "ACCESS CONTROL: CLIENT FROM " + client + ": " + accInThreeSeconds + "/3s, " + accInOneMinute + "/60s, " + accInTenMinutes + "/600s, " + " requests, disallowed remote snippet loading"); } } // general load protection if ( accInTenMinutes >= 3000 || accInOneMinute >= 600 || accInThreeSeconds >= 60 ) { block = true; Log.logWarning("LOCAL_SEARCH", "ACCESS CONTROL: CLIENT FROM " + client + ": " + accInThreeSeconds + "/3s, " + accInOneMinute + "/60s, " + accInTenMinutes + "/600s, " + " requests, disallowed search"); } } } if ( !block && (post == null || post.get("cat", "href").equals("href")) ) { String urlmask = null; // check available memory and clean up if necessary if ( !MemoryControl.request(8000000L, false) ) { indexSegment.urlMetadata().clearCache(); SearchEventCache.cleanupEvents(true); } final RankingProfile ranking = sb.getRanking(); final StringBuilder modifier = new StringBuilder(20); if ( querystring.indexOf("/near", 0) >= 0 ) { querystring = querystring.replace("/near", ""); ranking.coeff_worddistance = RankingProfile.COEFF_MAX; modifier.append("/near "); } if ( querystring.indexOf("/date", 0) >= 0 ) { querystring = querystring.replace("/date", ""); ranking.coeff_date = RankingProfile.COEFF_MAX; modifier.append("/date "); } if ( querystring.indexOf("/http", 0) >= 0 ) { querystring = querystring.replace("/http", ""); urlmask = "https?://.*"; modifier.append("/http "); } if ( querystring.indexOf("/https", 0) >= 0 ) { querystring = querystring.replace("/https", ""); urlmask = "https?://.*"; modifier.append("/https "); } if ( querystring.indexOf("/ftp", 0) >= 0 ) { querystring = querystring.replace("/ftp", ""); urlmask = "ftp://.*"; modifier.append("/ftp "); } if ( querystring.indexOf("/smb", 0) >= 0 ) { querystring = querystring.replace("/smb", ""); urlmask = "smb://.*"; modifier.append("/smb "); } if ( querystring.indexOf("/file", 0) >= 0 ) { querystring = querystring.replace("/file", ""); urlmask = "file://.*"; modifier.append("/file "); } if ( querystring.indexOf("/location", 0) >= 0 ) { querystring = querystring.replace("/location", ""); if ( constraint == null ) { constraint = new Bitfield(4); } constraint.set(Condenser.flag_cat_haslocation, true); modifier.append("/location "); } final int lrp = querystring.indexOf("/language/", 0); String language = ""; if ( lrp >= 0 ) { if ( querystring.length() >= (lrp + 12) ) { language = querystring.substring(lrp + 10, lrp + 12); } querystring = querystring.replace("/language/" + language, ""); language = language.toLowerCase(); modifier.append("/language/").append(language).append(' '); } final int inurl = querystring.indexOf("inurl:", 0); if ( inurl >= 0 ) { int ftb = querystring.indexOf(' ', inurl); if ( ftb == -1 ) { ftb = querystring.length(); } final String urlstr = querystring.substring(inurl + 6, ftb); querystring = querystring.replace("inurl:" + urlstr, ""); if ( !urlstr.isEmpty() ) { urlmask = urlmask == null ? ".*" + urlstr + ".*" : urlmask + urlstr + ".*"; } modifier.append("inurl:").append(urlstr).append(' '); } final int filetype = querystring.indexOf("filetype:", 0); if ( filetype >= 0 ) { int ftb = querystring.indexOf(' ', filetype); if ( ftb == -1 ) { ftb = querystring.length(); } String ft = querystring.substring(filetype + 9, ftb); querystring = querystring.replace("filetype:" + ft, ""); while ( !ft.isEmpty() && ft.charAt(0) == '.' ) { ft = ft.substring(1); } if ( !ft.isEmpty() ) { if ( urlmask == null ) { urlmask = ".*\\." + ft; } else { urlmask = urlmask + ".*\\." + ft; } } modifier.append("filetype:").append(ft).append(' '); } int voc = 0; Collection metatags = new ArrayList(1); while ((voc = querystring.indexOf("/vocabulary/", 0)) >= 0) { String vocabulary = ""; int ve = querystring.indexOf(' ', voc + 12); if (ve < 0) { vocabulary = querystring.substring(voc); querystring = querystring.substring(0, voc).trim(); } else { vocabulary = querystring.substring(voc, ve); querystring = querystring.substring(0, voc) + querystring.substring(ve); } modifier.append(vocabulary).append(' '); vocabulary = vocabulary.substring(12); int p = vocabulary.indexOf('/'); if (p > 0) { String k = vocabulary.substring(0, p); String v = vocabulary.substring(p + 1); metatags.add(LibraryProvider.autotagging.metatag(LibraryProvider.autotagging.prefixChar + k + ":" + v)); } } String tenant = null; if ( post.containsKey("tenant") ) { tenant = post.get("tenant"); if ( tenant != null && tenant.isEmpty() ) { tenant = null; } if ( tenant != null ) { if ( urlmask == null ) { urlmask = ".*" + tenant + ".*"; } else { urlmask = ".*" + tenant + urlmask; } } } final int site = querystring.indexOf("site:", 0); String sitehash = null; String sitehost = null; if ( site >= 0 ) { int ftb = querystring.indexOf(' ', site); if ( ftb == -1 ) { ftb = querystring.length(); } sitehost = querystring.substring(site + 5, ftb); querystring = querystring.replace("site:" + sitehost, ""); while ( sitehost.length() > 0 && sitehost.charAt(0) == '.' ) { sitehost = sitehost.substring(1); } while ( sitehost.endsWith(".") ) { sitehost = sitehost.substring(0, sitehost.length() - 1); } sitehash = DigestURI.hosthash(sitehost); modifier.append("site:").append(sitehost).append(' '); } final int heuristicScroogle = querystring.indexOf("/heuristic/scroogle", 0); if ( heuristicScroogle >= 0 ) { querystring = querystring.replace("/heuristic/scroogle", ""); modifier.append("/heuristic/scroogle "); } final int heuristicBlekko = querystring.indexOf("/heuristic/blekko", 0); if ( heuristicBlekko >= 0 ) { querystring = querystring.replace("/heuristic/blekko", ""); modifier.append("/heuristic/blekko "); } final int authori = querystring.indexOf("author:", 0); String authorhash = null; if ( authori >= 0 ) { // check if the author was given with single quotes or without final boolean quotes = (querystring.charAt(authori + 7) == '('); String author; if ( quotes ) { int ftb = querystring.indexOf(')', authori + 8); if ( ftb == -1 ) { ftb = querystring.length() + 1; } author = querystring.substring(authori + 8, ftb); querystring = querystring.replace("author:(" + author + ")", ""); modifier.append("author:(").append(author).append(") "); } else { int ftb = querystring.indexOf(' ', authori); if ( ftb == -1 ) { ftb = querystring.length(); } author = querystring.substring(authori + 7, ftb); querystring = querystring.replace("author:" + author, ""); modifier.append("author:").append(author).append(' '); } authorhash = ASCII.String(Word.word2hash(author)); } final int tld = querystring.indexOf("tld:", 0); if ( tld >= 0 ) { int ftb = querystring.indexOf(' ', tld); if ( ftb == -1 ) { ftb = querystring.length(); } String domain = querystring.substring(tld + 4, ftb); querystring = querystring.replace("tld:" + domain, ""); modifier.append("tld:").append(domain).append(' '); while ( domain.length() > 0 && domain.charAt(0) == '.' ) { domain = domain.substring(1); } if ( domain.indexOf('.', 0) < 0 ) { domain = "\\." + domain; } // is tld if ( domain.length() > 0 ) { urlmask = "[a-zA-Z]*://[^/]*" + domain + "/.*" + ((urlmask != null) ? urlmask : ""); } } if ( urlmask == null || urlmask.isEmpty() ) { urlmask = originalUrlMask; } //if no urlmask was given // read the language from the language-restrict option 'lr' // if no one is given, use the user agent or the system language as default language = (post == null) ? language : post.get("lr", language); if ( language.startsWith("lang_") ) { language = language.substring(5); } if ( !ISO639.exists(language) ) { // find out language of the user by reading of the user-agent string String agent = header.get(HeaderFramework.ACCEPT_LANGUAGE); if ( agent == null ) { agent = System.getProperty("user.language"); } language = (agent == null) ? "en" : ISO639.userAgentLanguageDetection(agent); if ( language == null ) { language = "en"; } } // navigation final String navigation = (post == null) ? sb.getConfig("search.navigation", "all") : post.get("nav", ""); // the query final Collection[] query = QueryParams.cleanQuery(querystring.trim()); // converts also umlaute final int maxDistance = (querystring.indexOf('"', 0) >= 0) ? query.length - 1 : Integer.MAX_VALUE; // filter out stopwords final SortedSet filtered = SetTools.joinConstructiveByTest(query[0], Switchboard.stopwords); if ( !filtered.isEmpty() ) { SetTools.excludeDestructiveByTestSmallInLarge(query[0], Switchboard.stopwords); } // if a minus-button was hit, remove a special reference first if ( post != null && post.containsKey("deleteref") ) { try { if ( !sb.verifyAuthentication(header) ) { prop.put("AUTHENTICATE", "admin log-in"); // force log-in return prop; } // delete the index entry locally final String delHash = post.get("deleteref", ""); // urlhash indexSegment.termIndex().remove(Word.words2hashesHandles(query[0]), delHash.getBytes()); // make new news message with negative voting if ( !sb.isRobinsonMode() ) { final Map map = new HashMap(); map.put("urlhash", delHash); map.put("vote", "negative"); map.put("refid", ""); sb.peers.newsPool.publishMyNews( sb.peers.mySeed(), NewsPool.CATEGORY_SURFTIPP_VOTE_ADD, map); } // delete the search history since this still shows the entry SearchEventCache.delete(delHash); } catch ( final IOException e ) { Log.logException(e); } } // if a plus-button was hit, create new voting message if ( post != null && post.containsKey("recommendref") ) { if ( !sb.verifyAuthentication(header) ) { prop.put("AUTHENTICATE", "admin log-in"); // force log-in return prop; } final String recommendHash = post.get("recommendref", ""); // urlhash final URIMetadataRow urlentry = indexSegment.urlMetadata().load(UTF8.getBytes(recommendHash)); if ( urlentry != null ) { Document[] documents = null; try { documents = sb.loader.loadDocuments( sb.loader.request(urlentry.url(), true, false), CacheStrategy.IFEXIST, 5000, Integer.MAX_VALUE); } catch ( final IOException e ) { } catch ( final Parser.Failure e ) { } if ( documents != null ) { // create a news message final Map map = new HashMap(); map.put("url", urlentry.url().toNormalform(false, true).replace(',', '|')); map.put("title", urlentry.dc_title().replace(',', ' ')); map.put("description", documents[0].dc_title().replace(',', ' ')); map.put("author", documents[0].dc_creator()); map.put("tags", documents[0].dc_subject(' ')); sb.peers.newsPool.publishMyNews( sb.peers.mySeed(), NewsPool.CATEGORY_SURFTIPP_ADD, map); documents[0].close(); } } } // if a bookmarks-button was hit, create new bookmark entry if ( post != null && post.containsKey("bookmarkref") ) { if ( !sb.verifyAuthentication(header) ) { prop.put("AUTHENTICATE", "admin log-in"); // force log-in return prop; } final String bookmarkHash = post.get("bookmarkref", ""); // urlhash final URIMetadataRow urlentry = indexSegment.urlMetadata().load(UTF8.getBytes(bookmarkHash)); if ( urlentry != null ) { try { sb.tables.bookmarks.createBookmark( sb.loader, urlentry.url(), YMarkTables.USER_ADMIN, true, "searchresult", "/search"); } catch ( final Throwable e ) { } } } // do the search final HandleSet queryHashes = Word.words2hashesHandles(query[0]); final Pattern snippetPattern = QueryParams.stringSearchPattern(originalquerystring); // check filters try { Pattern.compile(urlmask); } catch ( final PatternSyntaxException ex ) { Log.logWarning("SEARCH", "Illegal URL mask, not a valid regex: " + urlmask); prop.put("urlmaskerror", 1); prop.putHTML("urlmaskerror_urlmask", urlmask); urlmask = ".*"; } try { Pattern.compile(prefermask); } catch ( final PatternSyntaxException ex ) { Log.logWarning("SEARCH", "Illegal prefer mask, not a valid regex: " + prefermask); prop.put("prefermaskerror", 1); prop.putHTML("prefermaskerror_prefermask", prefermask); prefermask = ""; } final QueryParams theQuery = new QueryParams( originalquerystring, queryHashes, Word.words2hashesHandles(query[1]), Word.words2hashesHandles(query[2]), snippetPattern, tenant, modifier.toString().trim(), maxDistance, prefermask, contentdom, language, metatags, navigation, snippetFetchStrategy, maximumRecords, startRecord, urlmask, clustersearch && global ? QueryParams.Searchdom.CLUSTER : (global && indexReceiveGranted ? QueryParams.Searchdom.GLOBAL : QueryParams.Searchdom.LOCAL), 20, constraint, true, sitehash, DigestURI.hosthashess(sb.getConfig("search.excludehosth", "")), authorhash, DigestURI.TLD_any_zone_filter, client, authenticated, indexSegment, ranking, header.get(RequestHeader.USER_AGENT, ""), sb.getConfigBool(SwitchboardConstants.SEARCH_VERIFY_DELETE, false) && sb.getConfigBool(SwitchboardConstants.NETWORK_SEARCHVERIFY, false) && sb.peers.mySeed().getFlagAcceptRemoteIndex()); EventTracker.delete(EventTracker.EClass.SEARCH); EventTracker.update(EventTracker.EClass.SEARCH, new ProfilingGraph.EventSearch( theQuery.id(true), SearchEvent.Type.INITIALIZATION, "", 0, 0), false); // tell all threads to do nothing for a specific time sb.intermissionAllThreads(3000); // filter out words that appear in bluelist theQuery.filterOut(Switchboard.blueList); // log Log.logInfo( "LOCAL_SEARCH", "INIT WORD SEARCH: " + theQuery.queryString + ":" + QueryParams.hashSet2hashString(theQuery.queryHashes) + " - " + theQuery.neededResults() + " links to be computed, " + theQuery.displayResults() + " lines to be displayed"); EventChannel.channels(EventChannel.LOCALSEARCH).addMessage( new RSSMessage("Local Search Request", theQuery.queryString, "")); final long timestamp = System.currentTimeMillis(); // create a new search event if ( SearchEventCache.getEvent(theQuery.id(false)) == null ) { theQuery.setOffset(0); // in case that this is a new search, always start without a offset startRecord = 0; } final SearchEvent theSearch = SearchEventCache.getEvent( theQuery, sb.peers, sb.tables, (sb.isRobinsonMode()) ? sb.clusterhashes : null, false, sb.loader, (int) sb.getConfigLong( SwitchboardConstants.REMOTESEARCH_MAXCOUNT_USER, sb.getConfigLong(SwitchboardConstants.REMOTESEARCH_MAXCOUNT_DEFAULT, 10)), sb.getConfigLong( SwitchboardConstants.REMOTESEARCH_MAXTIME_USER, sb.getConfigLong(SwitchboardConstants.REMOTESEARCH_MAXTIME_DEFAULT, 3000)), (int) sb.getConfigLong(SwitchboardConstants.DHT_BURST_ROBINSON, 0), (int) sb.getConfigLong(SwitchboardConstants.DHT_BURST_MULTIWORD, 0)); if ( startRecord == 0 ) { if ( sitehost != null && sb.getConfigBool("heuristic.site", false) && authenticated ) { sb.heuristicSite(theSearch, sitehost); } if ( (heuristicScroogle >= 0 || sb.getConfigBool("heuristic.scroogle", false)) && authenticated ) { sb.heuristicScroogle(theSearch); } if ( (heuristicBlekko >= 0 || sb.getConfigBool("heuristic.blekko", false)) && authenticated ) { sb.heuristicRSS("http://blekko.com/ws/$+/rss", theSearch, "blekko"); } } // log Log.logInfo("LOCAL_SEARCH", "EXIT WORD SEARCH: " + theQuery.queryString + " - " + "local-unfiltered(" + theSearch.getRankingResult().getLocalIndexCount() + "), " + "local_miss(" + theSearch.getRankingResult().getMissCount() + "), " + "local_sortout(" + theSearch.getRankingResult().getSortOutCount() + "), " + "remote(" + theSearch.getRankingResult().getRemoteResourceSize() + ") links found, " + (System.currentTimeMillis() - timestamp) + " ms"); // prepare search statistics theQuery.resultcount = theSearch.getRankingResult().getLocalIndexCount() - theSearch.getRankingResult().getMissCount() - theSearch.getRankingResult().getSortOutCount() + theSearch.getRankingResult().getRemoteIndexCount(); theQuery.searchtime = System.currentTimeMillis() - timestamp; theQuery.urlretrievaltime = theSearch.result().getURLRetrievalTime(); theQuery.snippetcomputationtime = theSearch.result().getSnippetComputationTime(); AccessTracker.add(AccessTracker.Location.local, theQuery); // check suggestions final int meanMax = (post != null) ? post.getInt("meanCount", 0) : 0; prop.put("meanCount", meanMax); if ( meanMax > 0 && !json && !rss ) { final DidYouMean didYouMean = new DidYouMean(indexSegment.termIndex(), new StringBuilder(querystring)); final Iterator meanIt = didYouMean.getSuggestions(100, 5).iterator(); int meanCount = 0; String suggestion; while ( meanCount < meanMax && meanIt.hasNext() ) { suggestion = meanIt.next().toString(); prop.put("didYouMean_suggestions_" + meanCount + "_word", suggestion); prop.put( "didYouMean_suggestions_" + meanCount + "_url", QueryParams.navurl( "html", 0, theQuery, suggestion, originalUrlMask.toString(), theQuery.navigators).toString()); prop.put("didYouMean_suggestions_" + meanCount + "_sep", "|"); meanCount++; } prop.put("didYouMean_suggestions_" + (meanCount - 1) + "_sep", ""); prop.put("didYouMean", meanCount > 0 ? 1 : 0); prop.put("didYouMean_suggestions", meanCount); } else { prop.put("didYouMean", 0); } // find geographic info final SortedSet coordinates = LibraryProvider.geoLoc.find(originalquerystring, false); if ( coordinates == null || coordinates.isEmpty() || startRecord > 0 ) { prop.put("geoinfo", "0"); } else { int i = 0; for ( final Location c : coordinates ) { prop.put("geoinfo_loc_" + i + "_lon", Math.round(c.lon() * 10000.0f) / 10000.0f); prop.put("geoinfo_loc_" + i + "_lat", Math.round(c.lat() * 10000.0f) / 10000.0f); prop.put("geoinfo_loc_" + i + "_name", c.getName()); i++; if ( i >= 10 ) { break; } } prop.put("geoinfo_loc", i); prop.put("geoinfo", "1"); } // update the search tracker try { synchronized ( trackerHandles ) { trackerHandles.add(theQuery.time); while ( trackerHandles.size() > 600 ) { if ( !trackerHandles.remove(trackerHandles.first()) ) { break; } } } sb.localSearchTracker.put(client, trackerHandles); if ( sb.localSearchTracker.size() > 100 ) { sb.localSearchTracker.remove(sb.localSearchTracker.keys().nextElement()); } if ( MemoryControl.shortStatus() ) { sb.localSearchTracker.clear(); } } catch ( final Exception e ) { Log.logException(e); } final int indexcount = theSearch.getRankingResult().getLocalIndexCount() - theSearch.getRankingResult().getMissCount() - theSearch.getRankingResult().getSortOutCount() + theSearch.getRankingResult().getRemoteIndexCount(); prop.put("num-results_offset", startRecord == 0 ? 0 : startRecord + 1); prop.put("num-results_itemscount", Formatter.number( startRecord + theSearch.getQuery().itemsPerPage > indexcount ? startRecord + indexcount % theSearch.getQuery().itemsPerPage : startRecord + theSearch.getQuery().itemsPerPage, true)); prop.put("num-results_itemsPerPage", maximumRecords); prop.put("num-results_totalcount", Formatter.number(indexcount, true)); prop.put("num-results_globalresults", global && (indexReceiveGranted || clustersearch) ? "1" : "0"); prop.put( "num-results_globalresults_localResourceSize", Formatter.number(theSearch.getRankingResult().getLocalIndexCount(), true)); prop.put( "num-results_globalresults_localMissCount", Formatter.number(theSearch.getRankingResult().getMissCount(), true)); prop.put( "num-results_globalresults_remoteResourceSize", Formatter.number(theSearch.getRankingResult().getRemoteResourceSize(), true)); prop.put( "num-results_globalresults_remoteIndexCount", Formatter.number(theSearch.getRankingResult().getRemoteIndexCount(), true)); prop.put( "num-results_globalresults_remotePeerCount", Formatter.number(theSearch.getRankingResult().getRemotePeerCount(), true)); // compose page navigation final StringBuilder resnav = new StringBuilder(200); final int thispage = startRecord / theQuery.displayResults(); if ( thispage == 0 ) { resnav .append("\"arrowleft\" "); } else { resnav.append("\"arrowleft\" "); } final int numberofpages = Math.min(10, 1 + ((indexcount - 1) / theQuery.displayResults())); for ( int i = 0; i < numberofpages; i++ ) { if ( i == thispage ) { resnav.append("\"page"); "); } else { resnav.append("\"page"); "); } } if ( thispage >= numberofpages ) { resnav .append("\"arrowright\""); } else { resnav.append("\"arrowright\""); } final String resnavs = resnav.toString(); prop.put("num-results_resnav", resnavs); prop.put("pageNavBottom", (indexcount - startRecord > 6) ? 1 : 0); // if there are more results than may fit on the page we add a navigation at the bottom prop.put("pageNavBottom_resnav", resnavs); // generate the search result lines; the content will be produced by another servlet for ( int i = 0; i < theQuery.displayResults(); i++ ) { prop.put("results_" + i + "_item", startRecord + i); prop.put("results_" + i + "_eventID", theQuery.id(false)); } prop.put("results", theQuery.displayResults()); prop .put( "resultTable", (contentdom == ContentDomain.APP || contentdom == ContentDomain.AUDIO || contentdom == ContentDomain.VIDEO) ? 1 : 0); prop.put("eventID", theQuery.id(false)); // for bottomline // process result of search if ( !filtered.isEmpty() ) { prop.put("excluded", "1"); prop.putHTML("excluded_stopwords", filtered.toString()); } else { prop.put("excluded", "0"); } if ( prop == null || prop.isEmpty() ) { if ( post.get("query", post.get("search", "")).length() < 2 ) { prop.put("num-results", "2"); // no results - at least 2 chars } else { prop.put("num-results", "1"); // no results } } else { prop.put("num-results", "3"); } prop.put("cat", "href"); prop.put("depth", "0"); // adding some additional properties needed for the rss feed String hostName = header.get("Host", "localhost"); if ( hostName.indexOf(':', 0) == -1 ) { hostName += ":" + serverCore.getPortNr(env.getConfig("port", "8090")); } prop.put("searchBaseURL", "http://" + hostName + "/yacysearch.html"); prop.put("rssYacyImageURL", "http://" + hostName + "/env/grafics/yacy.gif"); } prop.put("searchagain", global ? "1" : "0"); prop.putHTML("former", originalquerystring); prop.put("count", maximumRecords); prop.put("offset", startRecord); prop.put("resource", global ? "global" : "local"); prop.putHTML("urlmaskfilter", originalUrlMask); prop.putHTML("prefermaskfilter", prefermask); prop.put("indexof", (indexof) ? "on" : "off"); prop.put("constraint", (constraint == null) ? "" : constraint.exportB64()); prop.put("search.verify", snippetFetchStrategy == null ? sb.getConfig("search.verify", "iffresh") : snippetFetchStrategy.toName()); prop.put( "search.navigation", (post == null) ? sb.getConfig("search.navigation", "all") : post.get("nav", "all")); prop.put("contentdom", (post == null ? "text" : post.get("contentdom", "text"))); prop.put( "searchdomswitches", sb.getConfigBool("search.text", true) || sb.getConfigBool("search.audio", true) || sb.getConfigBool("search.video", true) || sb.getConfigBool("search.image", true) || sb.getConfigBool("search.app", true) ? 1 : 0); prop.put("searchdomswitches_searchtext", sb.getConfigBool("search.text", true) ? 1 : 0); prop.put("searchdomswitches_searchaudio", sb.getConfigBool("search.audio", true) ? 1 : 0); prop.put("searchdomswitches_searchvideo", sb.getConfigBool("search.video", true) ? 1 : 0); prop.put("searchdomswitches_searchimage", sb.getConfigBool("search.image", true) ? 1 : 0); prop.put("searchdomswitches_searchapp", sb.getConfigBool("search.app", true) ? 1 : 0); prop.put("searchdomswitches_searchtext_check", (contentdom == ContentDomain.TEXT) ? "1" : "0"); prop.put("searchdomswitches_searchaudio_check", (contentdom == ContentDomain.AUDIO) ? "1" : "0"); prop.put("searchdomswitches_searchvideo_check", (contentdom == ContentDomain.VIDEO) ? "1" : "0"); prop.put("searchdomswitches_searchimage_check", (contentdom == ContentDomain.IMAGE) ? "1" : "0"); prop.put("searchdomswitches_searchapp_check", (contentdom == ContentDomain.APP) ? "1" : "0"); // copy properties for "more options" link prop.put("searchdomswitches_count", prop.get("count")); prop.put("searchdomswitches_urlmaskfilter", prop.get("urlmaskfilter")); prop.put("searchdomswitches_prefermaskfilter", prop.get("prefermaskfilter")); prop.put("searchdomswitches_cat", prop.get("cat")); prop.put("searchdomswitches_constraint", prop.get("constraint")); prop.put("searchdomswitches_contentdom", prop.get("contentdom")); prop.put("searchdomswitches_former", prop.get("former")); prop.put("searchdomswitches_meanCount", prop.get("meanCount")); // for RSS: don't HTML encode some elements prop.putXML("rss_query", originalquerystring); prop.putXML("rss_queryenc", originalquerystring.replace(' ', '+')); sb.localSearchLastAccess = System.currentTimeMillis(); // return rewrite properties return prop; } }