// (C) 2007 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany // first published 28.08.2007 on http://yacy.net // // This is a part of YaCy, a peer-to-peer based web search engine // // 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.io.UnsupportedEncodingException; import java.net.URLEncoder; import java.nio.charset.StandardCharsets; import java.time.Instant; import java.util.AbstractMap; import java.util.Date; import java.util.Iterator; import java.util.LinkedList; import java.util.Map; import net.yacy.cora.date.AbstractFormatter; import net.yacy.cora.document.analysis.Classification.ContentDomain; import net.yacy.cora.document.id.MultiProtocolURL; import net.yacy.cora.federate.yacy.CacheStrategy; import net.yacy.cora.lod.vocabulary.Tagging; import net.yacy.cora.protocol.RequestHeader; import net.yacy.cora.sorting.ScoreMap; import net.yacy.data.UserDB; import net.yacy.document.DateDetection; import net.yacy.document.LibraryProvider; import net.yacy.http.servlets.TemplateMissingParameterException; import net.yacy.peers.graphics.ProfilingGraph; import net.yacy.search.EventTracker; import net.yacy.search.Switchboard; import net.yacy.search.SwitchboardConstants; import net.yacy.search.index.Segment; import net.yacy.search.navigator.Navigator; import net.yacy.search.navigator.NavigatorSortDirection; import net.yacy.search.navigator.NavigatorSortType; import net.yacy.search.query.QueryParams; import net.yacy.search.query.SearchEvent; import net.yacy.search.query.SearchEventCache; import net.yacy.search.query.SearchEventType; import net.yacy.server.serverObjects; import net.yacy.server.serverSwitch; public class yacysearchtrailer { private static final int TOPWORDS_MAXCOUNT = 16; private static final int TOPWORDS_MINSIZE = 8; private static final int TOPWORDS_MAXSIZE = 22; @SuppressWarnings({ }) public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) { if (post == null) { throw new TemplateMissingParameterException("The eventID parameter is required"); } final serverObjects prop = new serverObjects(); final Switchboard sb = (Switchboard) env; final String eventID = post.get("eventID", ""); final boolean adminAuthenticated = sb.verifyAuthentication(header); final UserDB.Entry user = sb.userDB != null ? sb.userDB.getUser(header) : null; final boolean authenticated = adminAuthenticated || user != null; if (post.containsKey("auth") && !authenticated) { /* * Authenticated search is explicitely requested here * but no authentication is provided : ask now for authentication. * Wihout this, after timeout of HTTP Digest authentication nonce, browsers no more send authentication information * and as this page is not private, protected features would simply be hidden without asking browser again for authentication. * (see mantis 766 : http://mantis.tokeek.de/view.php?id=766) * */ prop.authenticationRequired(); return prop; } // find search event final SearchEvent theSearch = SearchEventCache.getEvent(eventID); if (theSearch == null) { // the event does not exist, show empty page return prop; } final RequestHeader.FileType fileType = header.fileType(); 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_SEARCH, true) || clustersearch; boolean p2pmode = sb.peers != null && sb.peers.sizeConnected() > 0 && indexReceiveGranted; boolean global = post == null || (!post.get("resource-switch", post.get("resource", "global")).equals("local") && p2pmode); boolean stealthmode = p2pmode && !global; // compose search navigation ContentDomain contentdom = theSearch.getQuery().contentdom; 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); final String originalquerystring = post.get("query", post.get("search", "")).trim(); final String former = originalquerystring.replaceAll(Segment.catchallString, "*"); final CacheStrategy snippetFetchStrategy = CacheStrategy.parse(post.get("verify", sb.getConfig("search.verify", ""))); final String snippetFetchStrategyName = snippetFetchStrategy == null ? sb.getConfig("search.verify", CacheStrategy.IFFRESH.toName()) : snippetFetchStrategy.toName(); final int startRecord = post.getInt("startRecord", post.getInt("offset", post.getInt("start", 0))); /* Maximum number of suggestions to display in the first results page */ final int meanMax = post.getInt("meanCount", 0); prop.put("resource-switches", adminAuthenticated && (stealthmode || global)); prop.put("resource-switches_global", adminAuthenticated && global); appendSearchFormValues("resource-switches_", post, prop, global, theSearch, former, snippetFetchStrategyName, startRecord, meanMax); /* The search event has been found : we can render ranking switches */ prop.put("ranking-switches", true); appendSearchFormValues("ranking-switches_", post, prop, global, theSearch, former, snippetFetchStrategyName, startRecord, meanMax); /* Add information about the current navigators generation (number of updates since their initialization) */ prop.put("ranking-switches_nav-generation", theSearch.getNavGeneration()); prop.put("ranking-switches_contextRanking", !former.contains(" /date")); prop.put("ranking-switches_contextRanking_formerWithoutDate", former.replace(" /date", "")); prop.put("ranking-switches_dateRanking", former.contains(" /date")); prop.put("ranking-switches_dateRanking_former", former); appendSearchFormValues("searchdomswitches_", post, prop, global, theSearch, former, snippetFetchStrategyName, startRecord, meanMax); 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 || contentdom == ContentDomain.ALL) ? "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"); appendSearchFormValues("searchdomswitches_strictContentDomSwitch_", post, prop, global, theSearch, former, snippetFetchStrategyName, startRecord, meanMax); prop.put("searchdomswitches_strictContentDomSwitch", (contentdom != ContentDomain.TEXT && contentdom != ContentDomain.ALL) ? 1 : 0); prop.put("searchdomswitches_strictContentDomSwitch_strictContentDom", theSearch.getQuery().isStrictContentDom() ? 1 : 0); String name; int count; Iterator navigatorIterator; // topics navigator final ScoreMap topicNavigator = theSearch.getTopicNavigator(TOPWORDS_MAXCOUNT); if (topicNavigator == null || topicNavigator.isEmpty()) { prop.put("nav-topics", "0"); } else { prop.put("nav-topics", "1"); navigatorIterator = topicNavigator.keys(false); int i = 0; // first sort the list to a form where the greatest element is in the middle LinkedList> cloud = new LinkedList>(); int mincount = Integer.MAX_VALUE; int maxcount = 0; while (i < TOPWORDS_MAXCOUNT && navigatorIterator.hasNext()) { name = navigatorIterator.next(); count = topicNavigator.get(name); if (count == 0) break; if (name == null) continue; int normcount = (count + TOPWORDS_MAXCOUNT - i) / 2; if (normcount > maxcount) maxcount = normcount; if (normcount < mincount) mincount = normcount; Map.Entry entry = new AbstractMap.SimpleEntry(name, normcount); if (cloud.size() % 2 == 0) cloud.addFirst(entry); else cloud.addLast(entry); // alternating add entry to first or last position. i++; } i= 0; for (Map.Entry entry: cloud) { name = entry.getKey(); count = entry.getValue(); prop.put(fileType, "nav-topics_element_" + i + "_modifier", name); prop.put(fileType, "nav-topics_element_" + i + "_name", name); prop.putUrlEncoded(fileType, "nav-topics_element_" + i + "_url", QueryParams .navurl(fileType, 0, theSearch.query, name, false, authenticated).toString()); prop.put("nav-topics_element_" + i + "_count", count); int fontsize = TOPWORDS_MINSIZE + (TOPWORDS_MAXSIZE - TOPWORDS_MINSIZE) * (count - mincount) / (1 + maxcount - mincount); fontsize = Math.max(TOPWORDS_MINSIZE, fontsize - (name.length() - 5)); prop.put("nav-topics_element_" + i + "_size", fontsize); // font size in pixel prop.put("nav-topics_element_" + i + "_nl", 1); i++; } prop.put("nav-topics_element", i); prop.put("nav-topics_count", i); i--; prop.put("nav-topics_element_" + i + "_nl", 0); } // protocol navigators if (theSearch.protocolNavigator == null || theSearch.protocolNavigator.isEmpty()) { prop.put("nav-protocols", 0); } else { prop.put("nav-protocols", 1); //int httpCount = theSearch.protocolNavigator.delete("http"); //int httpsCount = theSearch.protocolNavigator.delete("https"); //theSearch.protocolNavigator.inc("http(s)", httpCount + httpsCount); navigatorIterator = theSearch.protocolNavigator.keys(false); int i = 0, pos = 0, neg = 0; String nav, rawNav; String oldQuery = theSearch.query.getQueryGoal().query_original; // prepare hack to make radio-button like navigation String oldProtocolModifier = theSearch.query.modifier.protocol; if (oldProtocolModifier != null && oldProtocolModifier.length() > 0) {theSearch.query.modifier.remove("/" + oldProtocolModifier); theSearch.query.modifier.remove(oldProtocolModifier);} theSearch.query.modifier.protocol = ""; theSearch.query.getQueryGoal().query_original = oldQuery.replaceAll(" /https", "").replaceAll(" /http", "").replaceAll(" /ftp", "").replaceAll(" /smb", "").replaceAll(" /file", ""); while (i < theSearch.getQuery().getStandardFacetsMaxCount() && navigatorIterator.hasNext()) { name = navigatorIterator.next().trim(); count = theSearch.protocolNavigator.get(name); if (count == 0) break; nav = "%2F" + name; /* Avoid double percent encoding in QueryParams.navurl */ rawNav = "/" + name; final String url; if (oldProtocolModifier == null || !oldProtocolModifier.equals(name)) { pos++; prop.put("nav-protocols_element_" + i + "_on", 0); prop.put("nav-protocols_element_" + i + "_onclick", 0); prop.put(fileType, "nav-protocols_element_" + i + "_modifier", nav); url = QueryParams.navurl(fileType, 0, theSearch.query, rawNav, false, authenticated).toString(); } else { neg++; prop.put("nav-protocols_element_" + i + "_on", 1); prop.put("nav-protocols_element_" + i + "_onclick", 1); prop.put(fileType, "nav-protocols_element_" + i + "_modifier", "-" + nav); url = QueryParams .navUrlWithSingleModifierRemoved(fileType, 0, theSearch.query, rawNav, authenticated) .toString(); } prop.put(fileType, "nav-protocols_element_" + i + "_name", name); prop.put("nav-protocols_element_" + i + "_onclick_url", url); prop.putUrlEncoded(fileType, "nav-protocols_element_" + i + "_url", url); prop.put("nav-protocols_element_" + i + "_count", count); prop.put("nav-protocols_element_" + i + "_nl", 1); i++; } if (i == 1) prop.put("nav-protocols_element_0_onclick", 0); // allow to unselect, if only one button theSearch.query.modifier.protocol = oldProtocolModifier; if (oldProtocolModifier != null && oldProtocolModifier.length() > 0) theSearch.query.modifier.add(oldProtocolModifier.startsWith("/") ? oldProtocolModifier : "/" + oldProtocolModifier); theSearch.query.getQueryGoal().query_original = oldQuery; prop.put("nav-protocols_element", i); prop.put("nav-protocols_count", i); i--; prop.put("nav-protocols_element_" + i + "_nl", 0); if (pos == 1 && neg == 0) prop.put("nav-protocols", 0); // this navigation is not useful } // date navigators if (theSearch.dateNavigator == null || theSearch.dateNavigator.isEmpty()) { prop.put("nav-dates", 0); } else { prop.put("nav-dates", 1); navigatorIterator = theSearch.dateNavigator.keysByNaturalOrder(true); // this iterator is different as it iterates by the key order (which is a date order) int i = 0, pos = 0, neg = 0; long dx = -1; Date fromconstraint = theSearch.getQuery().modifier.from == null ? null : DateDetection.parseLine(theSearch.getQuery().modifier.from, theSearch.getQuery().timezoneOffset); if (fromconstraint == null) fromconstraint = new Date(System.currentTimeMillis() - AbstractFormatter.normalyearMillis); Date toconstraint = theSearch.getQuery().modifier.to == null ? null : DateDetection.parseLine(theSearch.getQuery().modifier.to, theSearch.getQuery().timezoneOffset); if (toconstraint == null) toconstraint = new Date(System.currentTimeMillis() + AbstractFormatter.normalyearMillis); while (i < theSearch.getQuery().getDateFacetMaxCount() && navigatorIterator.hasNext()) { name = navigatorIterator.next().trim(); if (name.length() < 10) continue; count = theSearch.dateNavigator.get(name); if(count == 0) { continue; } String shortname = name.substring(0, 10); long d = Instant.parse(name).toEpochMilli(); Date dd = new Date(d); if (fromconstraint != null && dd.before(fromconstraint)) continue; if (toconstraint != null && dd.after(toconstraint)) break; if (dx > 0) { while (d - dx > AbstractFormatter.dayMillis && i < theSearch.getQuery().getDateFacetMaxCount()) { dx += AbstractFormatter.dayMillis; String sn = new Date(dx).toInstant().toString().substring(0, 10); prop.put("nav-dates_element_" + i + "_on", 0); prop.put(fileType, "nav-dates_element_" + i + "_name", sn); prop.put("nav-dates_element_" + i + "_count", 0); prop.put("nav-dates_element_" + i + "_nl", 1); i++; } } dx = d; if (theSearch.query.modifier.on == null || !theSearch.query.modifier.on.contains(shortname) ) { pos++; prop.put("nav-dates_element_" + i + "_on", 1); } else { neg++; prop.put("nav-dates_element_" + i + "_on", 0); } prop.put(fileType, "nav-dates_element_" + i + "_name", shortname); prop.put("nav-dates_element_" + i + "_count", count); prop.put("nav-dates_element_" + i + "_nl", 1); i++; } prop.put("nav-dates_element", i); prop.put("nav-dates_count", i); i--; prop.put("nav-dates_element_" + i + "_nl", 0); if (pos == 1 && neg == 0) prop.put("nav-dates", 0); // this navigation is not useful } // vocabulary navigators final Map> vocabularyNavigators = theSearch.vocabularyNavigator; if (vocabularyNavigators != null && !vocabularyNavigators.isEmpty()) { int navvoccount = 0; vocnav: for (Map.Entry> ve: vocabularyNavigators.entrySet()) { String navname = ve.getKey(); if (ve.getValue() == null || ve.getValue().isEmpty()) { continue vocnav; } prop.put(fileType, "nav-vocabulary_" + navvoccount + "_navname", navname); navigatorIterator = ve.getValue().keys(false); int i = 0; String nav, rawNav; while (i < 20 && navigatorIterator.hasNext()) { name = navigatorIterator.next(); count = ve.getValue().get(name); if (count == 0) break; nav = "%2Fvocabulary%2F" + navname + "%2F" + MultiProtocolURL.escape(Tagging.encodePrintname(name)).toString(); /* Avoid double percent encoding in QueryParams.navurl */ rawNav = "/vocabulary/" + navname + "/" + MultiProtocolURL.escape(Tagging.encodePrintname(name)).toString(); final String navUrl; if (!theSearch.query.modifier.toString().contains("/vocabulary/" + navname + "/" + name.replace(' ', '_'))) { prop.put("nav-vocabulary_" + navvoccount + "_element_" + i + "_on", 1); prop.put(fileType, "nav-vocabulary_" + navvoccount + "_element_" + i + "_modifier", nav); navUrl = QueryParams.navurl(fileType, 0, theSearch.query, rawNav, false, authenticated).toString(); } else { prop.put("nav-vocabulary_" + navvoccount + "_element_" + i + "_on", 0); prop.put(fileType, "nav-vocabulary_" + navvoccount + "_element_" + i + "_modifier", "-" + nav); navUrl = QueryParams.navUrlWithSingleModifierRemoved(fileType, 0, theSearch.query, rawNav, authenticated); } prop.put(fileType, "nav-vocabulary_" + navvoccount + "_element_" + i + "_name", name); prop.putUrlEncoded(fileType, "nav-vocabulary_" + navvoccount + "_element_" + i + "_url", navUrl); prop.put(fileType, "nav-vocabulary_" + navvoccount + "_element_" + i + "_id", "vocabulary_" + navname + "_" + i); prop.put("nav-vocabulary_" + navvoccount + "_element_" + i + "_count", count); prop.put("nav-vocabulary_" + navvoccount + "_element_" + i + "_nl", 1); i++; } prop.put("nav-vocabulary_" + navvoccount + "_element", i); prop.put("nav-vocabulary_" + navvoccount + "_count", i); i--; prop.put("nav-vocabulary_" + navvoccount + "_element_" + i + "_nl", 0); navvoccount++; } prop.put("nav-vocabulary", navvoccount); } else { prop.put("nav-vocabulary", 0); } // navigator plugins int ni = 0; for (String naviname : theSearch.navigatorPlugins.keySet()) { Navigator navi = theSearch.navigatorPlugins.get(naviname); if (navi.isEmpty()) { continue; } prop.put("navs_" + ni + "_displayname", navi.getDisplayName()); prop.put("navs_" + ni + "_name", naviname); prop.put("navs_" + ni + "_count", navi.size()); final int navSort; if(navi.getSort() == null) { navSort = 0; } else { if(navi.getSort().getSortType() == NavigatorSortType.COUNT) { if(navi.getSort().getSortDir() == NavigatorSortDirection.DESC) { navSort = 0; } else { navSort = 1; } } else { if(navi.getSort().getSortDir() == NavigatorSortDirection.DESC) { navSort = 2; } else { navSort = 3; } } } prop.put("navs_" + ni + "_navSort", navSort); navigatorIterator = navi.navigatorKeys(); int i = 0, pos = 0, neg = 0; String nav, rawNav; while (i < theSearch.getQuery().getStandardFacetsMaxCount() && navigatorIterator.hasNext()) { name = navigatorIterator.next(); count = navi.get(name); if (count == 0) { /* This entry has a zero count, but the next may be positive */ continue; } rawNav = navi.getQueryModifier(name); try { nav = URLEncoder.encode(rawNav, StandardCharsets.UTF_8.name()); } catch (UnsupportedEncodingException ex) { nav = ""; } boolean isactive = navi.modifieractive(theSearch.query.modifier, name); final String navUrl; if (!isactive) { pos++; prop.put("navs_" + ni + "_element_" + i + "_on", 1); prop.put(fileType, "navs_" + ni + "_element_" + i + "_modifier", nav); navUrl = QueryParams.navurl(fileType, 0, theSearch.query, rawNav, false, authenticated).toString(); } else { neg++; prop.put("navs_" + ni + "_element_" + i + "_on", 0); prop.put(fileType, "navs_" + ni + "_element_" + i + "_modifier", "-" + nav); navUrl = QueryParams.navUrlWithSingleModifierRemoved(fileType, 0, theSearch.query, rawNav, authenticated); } prop.put(fileType, "navs_" + ni + "_element_" + i + "_name", navi.getElementDisplayName(name)); prop.putUrlEncoded(fileType, "navs_" + ni + "_element_" + i + "_url", navUrl); prop.put(fileType, "navs_" + ni + "_element_" + i + "_id", naviname + "_" + i); prop.put("navs_" + ni + "_element_" + i + "_count", count); prop.put("navs_" + ni + "_element_" + i + "_nl", 1); i++; } if(i == 0) { /* The navigator has only entries with value==0 : this is equivalent to empty navigator */ continue; } prop.put("navs_" + ni + "_element", i); prop.put("navs_" + ni + "_count", i); i--; prop.put("navs_" + ni + "_element_" + i + "_nl", 0); if (pos == 1 && neg == 0) { prop.put("navs_" + ni, 0); // this navigation is not useful } ni++; } prop.put("navs", ni); // navigatior plugins - eof // about box final String aboutBody = env.getConfig("about.body", ""); final String aboutHeadline = env.getConfig("about.headline", ""); if ((aboutBody.isEmpty() && aboutHeadline.isEmpty()) || theSearch.getResultCount() == 0) { prop.put("nav-about", 0); } else { prop.put("nav-about", 1); prop.put("nav-about_headline", aboutHeadline); prop.put("nav-about_body", aboutBody); } // category: location search // show only if active and there is a location database present or if there had been any search results (with lat/lon) if (theSearch.locationNavigator == null || ((LibraryProvider.geoLoc.isEmpty() || theSearch.getResultCount() == 0) && theSearch.locationNavigator.isEmpty())) { prop.put("cat-location", 0); } else { prop.put("cat-location", 1); final String query = theSearch.query.getQueryGoal().getQueryString(false); prop.put(fileType, "cat-location_query", query); final String queryenc = theSearch.query.getQueryGoal().getQueryString(true).replace(' ', '+'); prop.putUrlEncoded(fileType, "cat-location_queryenc", queryenc); } prop.put("num-results_totalcount", theSearch.getResultCount()); EventTracker.update(EventTracker.EClass.SEARCH, new ProfilingGraph.EventSearch(theSearch.query.id(true), SearchEventType.FINALIZATION, "bottomline", 0, 0), false); return prop; } /** * Append search input fields values to the prop object. All parameters are required and must not be null. * @param templatePrefix the template prefix to append before each template key * @param post request parameters * @param prop the servlet answer object to be filled * @param global when true the search scope is blobal (not limited to this peer local index) * @param theSearch the search object * @param former the previous search terms * @param snippetFetchStrategyName the snippet fetching strategy name to apply * @param startRecord the zero based index of the first record to return * @param meanMax the maximum number of suggestions ("Did you mean") to propose */ private static void appendSearchFormValues(final String templatePrefix, final serverObjects post, final serverObjects prop, boolean global, final SearchEvent theSearch, final String former, final String snippetFetchStrategyName, final int startRecord, final int meanMax) { prop.putHTML(templatePrefix + "former", former); prop.put(templatePrefix + "authSearch", post.containsKey("auth")); prop.put(templatePrefix + "contentdom", post.get("contentdom", "text")); prop.put(templatePrefix + "strictContentDom", String.valueOf(theSearch.getQuery().isStrictContentDom())); prop.put(templatePrefix + "maximumRecords", theSearch.getQuery().itemsPerPage); prop.put(templatePrefix + "startRecord", startRecord); prop.put(templatePrefix + "search.verify", snippetFetchStrategyName); prop.put(templatePrefix + "resource", global ? "global" : "local"); prop.put(templatePrefix + "search.navigation", post.get("nav", "all")); prop.putHTML(templatePrefix + "prefermaskfilter", theSearch.getQuery().prefer.pattern()); prop.put(templatePrefix + "depth", "0"); prop.put(templatePrefix + "constraint", (theSearch.getQuery().constraint == null) ? "" : theSearch.getQuery().constraint.exportB64()); prop.put(templatePrefix + "meanCount", meanMax); } } //http://localhost:8090/yacysearch.html?query=java+&maximumRecords=10&resource=local&verify=cacheonly&nav=hosts,authors,namespace,topics,filetype,protocol&urlmaskfilter=ftp://.*&prefermaskfilter=&constraint=&contentdom=text&former=java+%2Fftp&startRecord=0 //http://localhost:8090/yacysearch.html?query=java+&maximumRecords=10&resource=local&verify=cacheonly&nav=hosts,authors,namespace,topics,filetype,protocol&urlmaskfilter=.*&prefermaskfilter=&constraint=&contentdom=text&former=java+%2Fvocabulary%2FGewerke%2FTore&startRecord=0