// IndexControlRWIs_p.java
// -----------------------
// (C) 2004-2007 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
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
// 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.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.TreeMap;

import net.yacy.cora.date.GenericFormatter;
import net.yacy.cora.document.ASCII;
import net.yacy.cora.document.UTF8;
import net.yacy.cora.protocol.RequestHeader;
import net.yacy.cora.services.federated.yacy.CacheStrategy;
import net.yacy.document.Condenser;
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.data.word.WordReference;
import net.yacy.kelondro.data.word.WordReferenceRow;
import net.yacy.kelondro.index.HandleSet;
import net.yacy.kelondro.index.RowSpaceExceededException;
import net.yacy.kelondro.logging.Log;
import net.yacy.kelondro.order.Base64Order;
import net.yacy.kelondro.order.Bitfield;
import net.yacy.kelondro.rwi.Reference;
import net.yacy.kelondro.rwi.ReferenceContainer;
import net.yacy.kelondro.rwi.ReferenceContainerCache;
import net.yacy.kelondro.util.ByteBuffer;
import net.yacy.kelondro.util.FileUtils;
import net.yacy.repository.Blacklist;
import de.anomic.crawler.ResultURLs;
import de.anomic.data.ListManager;
import de.anomic.data.WorkTables;
import de.anomic.http.client.Cache;
import de.anomic.search.BlockRank;
import de.anomic.search.QueryParams;
import de.anomic.search.RankingProcess;
import de.anomic.search.ReferenceOrder;
import de.anomic.search.SearchEventCache;
import de.anomic.search.Segment;
import de.anomic.search.Switchboard;
import de.anomic.search.SwitchboardConstants;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.yacy.yacyClient;
import de.anomic.yacy.yacySeed;
import de.anomic.yacy.dht.PeerSelection;

public class IndexControlRWIs_p {

    public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) throws IOException {
        // return variable that accumulates replacements
        final Switchboard sb = (Switchboard) env;
        final serverObjects prop = new serverObjects();

        // set default values
        prop.putHTML("keystring", "");
        prop.put("keyhash", "");
        prop.put("result", "");
        prop.put("cleanup", post == null ? 1 : 0);
        prop.put("cleanup_solr", sb.solrConnector == null || !sb.getConfigBool("federated.service.solr.indexing.enabled", false) ? 0 : 1);

        String segmentName = sb.getConfig(SwitchboardConstants.SEGMENT_PUBLIC, "default");
        int i = 0;
        for (final String s: sb.indexSegments.segmentNames()) {
            prop.put("segments_" + i + "_name", s);
            prop.put("segments_" + i + "_selected", (segmentName.equals(s)) ? 1 : 0);
            i++;
        }
        Segment segment = sb.indexSegments.segment(segmentName);
        prop.put("segments", i);

        // switch off all optional forms/lists
        prop.put("searchresult", 0);
        prop.put("keyhashsimilar", 0);
        prop.put("genUrlList", 0);

        // clean up all search events
        SearchEventCache.cleanupEvents(true);

        if (post != null) {
            // default values
            segmentName = post.get("segment", segmentName).trim();
            i= 0;
            for (final String s: sb.indexSegments.segmentNames()) {
                prop.put("segments_" + i + "_name", s);
                prop.put("segments_" + i + "_selected", (segmentName.equals(s)) ? 1 : 0);
                i++;
            }
            prop.put("segments", i);
            segment = sb.indexSegments.segment(segmentName);

            final String keystring = post.get("keystring", "").trim();
            byte[] keyhash = post.get("keyhash", "").trim().getBytes();
            prop.putHTML("keystring", keystring);
            prop.putHTML("keyhash", ASCII.String(keyhash));

            // read values from checkboxes
            final String[] urls = post.getAll("urlhx.*");
            HandleSet urlb = new HandleSet(URIMetadataRow.rowdef.primaryKeyLength, URIMetadataRow.rowdef.objectOrder, urls.length);
            if (urls != null) for (final String s: urls) try { urlb.put(s.getBytes()); } catch (final RowSpaceExceededException e) { Log.logException(e); }
            final boolean delurl    = post.containsKey("delurl");
            final boolean delurlref = post.containsKey("delurlref");

            if (post.containsKey("keystringsearch")) {
                keyhash = Word.word2hash(keystring);
                prop.put("keyhash", keyhash);
                final RankingProcess ranking = genSearchresult(prop, sb, segment, keyhash, null);
                if (ranking.filteredCount() == 0) {
                    prop.put("searchresult", 1);
                    prop.putHTML("searchresult_word", keystring);
                }
            }

            if (post.containsKey("keyhashsearch")) {
                if (keystring.length() == 0 || !ByteBuffer.equals(Word.word2hash(keystring), keyhash)) {
                    prop.put("keystring", "<not possible to compute word from hash>");
                }
                final RankingProcess ranking = genSearchresult(prop, sb, segment, keyhash, null);
                if (ranking.filteredCount() == 0) {
                    prop.put("searchresult", 2);
                    prop.putHTML("searchresult_wordhash", ASCII.String(keyhash));
                }
            }

            // delete everything
            if (post.containsKey("deletecomplete")) {
                if (post.get("deleteIndex", "").equals("on")) {
                    segment.clear();
                }
                if (post.get("deleteSolr", "").equals("on") && sb.getConfigBool("federated.service.solr.indexing.enabled", false)) try {
                    sb.solrConnector.clear();
                } catch (final Exception e) {
                    Log.logException(e);
                }
                if (post.get("deleteCrawlQueues", "").equals("on")) {
                    sb.crawlQueues.clear();
                    sb.crawlStacker.clear();
                    ResultURLs.clearStacks();
                }
                if (post.get("deleteCache", "").equals("on")) {
                    Cache.clear();
                }
                if (post.get("deleteRobots", "").equals("on")) {
                    sb.robots.clear();
                }
                if (post.get("deleteSearchFl", "").equals("on")) {
                	sb.tables.clear(WorkTables.TABLE_SEARCH_FAILURE_NAME);
                }
                post.remove("deletecomplete");
            }

            // delete word
            if (post.containsKey("keyhashdeleteall")) try {
                if (delurl || delurlref) {
                    // generate urlx: an array of url hashes to be deleted
                    ReferenceContainer<WordReference> index = null;
                    index = segment.termIndex().get(keyhash, null);
                    final Iterator<WordReference> en = index.entries();
                    urlb = new HandleSet(URIMetadataRow.rowdef.primaryKeyLength, URIMetadataRow.rowdef.objectOrder, index.size());
                    while (en.hasNext()) try { urlb.put(en.next().urlhash()); } catch (final RowSpaceExceededException e) { Log.logException(e); }
                    index = null;
                }
                if (delurlref) {
                    segment.removeAllUrlReferences(urlb, sb.loader, CacheStrategy.IFEXIST);
                }
                // delete the word first because that is much faster than the deletion of the urls from the url database
                segment.termIndex().delete(keyhash);
                // now delete all urls if demanded
                if (delurl || delurlref) {
                    for (final byte[] b: urlb) sb.urlRemove(segment, b);
                }
                post.remove("keyhashdeleteall");
                post.put("urllist", "generated");
            } catch (final IOException e) {
                Log.logException(e);
            }

            // delete selected URLs
            if (post.containsKey("keyhashdelete")) try {
                if (delurlref) {
                    segment.removeAllUrlReferences(urlb, sb.loader, CacheStrategy.IFEXIST);
                }
                if (delurl || delurlref) {
                    for (final byte[] b: urlb) sb.urlRemove(segment, b);
                }
                final HandleSet urlHashes = new HandleSet(URIMetadataRow.rowdef.primaryKeyLength, URIMetadataRow.rowdef.objectOrder, 0);
                for (final byte[] b: urlb) try { urlHashes.put(b); } catch (final RowSpaceExceededException e) { Log.logException(e); }
                segment.termIndex().remove(keyhash, urlHashes);
                // this shall lead to a presentation of the list; so handle that the remaining program
                // thinks that it was called for a list presentation
                post.remove("keyhashdelete");
                post.put("urllist", "generated");
            } catch (final IOException e) {
                Log.logException(e);
            }

            if (post.containsKey("urllist")) {
                if (keystring.length() == 0 || !ByteBuffer.equals(Word.word2hash(keystring), keyhash)) {
                    prop.put("keystring", "&lt;not possible to compute word from hash&gt;");
                }
                final Bitfield flags = compileFlags(post);
                final int count = (post.get("lines", "all").equals("all")) ? -1 : post.getInt("lines", -1);
                final RankingProcess ranking = genSearchresult(prop, sb, segment, keyhash, flags);
                genURLList(prop, keyhash, keystring, ranking, flags, count);
            }

            // transfer to other peer
            if (post.containsKey("keyhashtransfer")) try {
                if (keystring.length() == 0 || !ByteBuffer.equals(Word.word2hash(keystring), keyhash)) {
                    prop.put("keystring", "&lt;not possible to compute word from hash&gt;");
                }

                // find host & peer
                String host = post.get("host", ""); // get host from input field
                yacySeed seed = null;
                if (host.length() != 0) {
                    if (host.length() == 12) {
                        // the host string is a peer hash
                        seed = sb.peers.getConnected(host);
                    } else {
                        // the host string can be a host name
                        seed = sb.peers.lookupByName(host);
                    }
                } else {
                    host = post.get("hostHash", ""); // if input field is empty, get from select box
                    seed = sb.peers.getConnected(host);
                }

                // prepare index
                ReferenceContainer<WordReference> index;
                final long starttime = System.currentTimeMillis();
                index = segment.termIndex().get(keyhash, null);
                // built urlCache
                final Iterator<WordReference> urlIter = index.entries();
                final TreeMap<byte[], URIMetadataRow> knownURLs = new TreeMap<byte[], URIMetadataRow>(Base64Order.enhancedCoder);
                final HandleSet unknownURLEntries = new HandleSet(WordReferenceRow.urlEntryRow.primaryKeyLength, WordReferenceRow.urlEntryRow.objectOrder, index.size());
                Reference iEntry;
                URIMetadataRow lurl;
                while (urlIter.hasNext()) {
                    iEntry = urlIter.next();
                    lurl = segment.urlMetadata().load(iEntry.urlhash());
                    if (lurl == null) {
                        try {
                            unknownURLEntries.put(iEntry.urlhash());
                        } catch (final RowSpaceExceededException e) {
                            Log.logException(e);
                        }
                        urlIter.remove();
                    } else {
                        knownURLs.put(iEntry.urlhash(), lurl);
                    }
                }

                // make an indexContainerCache
                final ReferenceContainerCache<WordReference> icc = new ReferenceContainerCache<WordReference>(Segment.wordReferenceFactory, Segment.wordOrder, Word.commonHashLength);
                try {
                    icc.add(index);
                } catch (final RowSpaceExceededException e) {
                    Log.logException(e);
                }

                // transport to other peer
                final boolean gzipBody = sb.getConfigBool("indexControl.gzipBody", false);
                final int timeout = (int) sb.getConfigLong("indexControl.timeout", 60000);
                final String error = yacyClient.transferIndex(
                             seed,
                             icc,
                             knownURLs,
                             gzipBody,
                             timeout);
                prop.put("result", (error == null) ? ("Successfully transferred " + knownURLs.size() + " words in " + ((System.currentTimeMillis() - starttime) / 1000) + " seconds, " + unknownURLEntries.size() + " URL not found") : "error: " + error);
                index = null;
            } catch (final IOException e) {
                Log.logException(e);
            }

            // generate list
            if (post.containsKey("keyhashsimilar")) try {
                final Iterator<ReferenceContainer<WordReference>> containerIt = segment.termIndex().referenceContainer(keyhash, true, 256, false).iterator();
                    ReferenceContainer<WordReference> container;
                    i = 0;
                    int rows = 0, cols = 0;
                    prop.put("keyhashsimilar", "1");
                    while (containerIt.hasNext() && i < 256) {
                        container = containerIt.next();
                        prop.put("keyhashsimilar_rows_"+rows+"_cols_"+cols+"_wordHash", container.getTermHash());
                        cols++;
                        if (cols==8) {
                            prop.put("keyhashsimilar_rows_"+rows+"_cols", cols);
                            cols = 0;
                            rows++;
                        }
                        i++;
                    }
                    prop.put("keyhashsimilar_rows_"+rows+"_cols", cols);
                    prop.put("keyhashsimilar_rows", rows + 1);
                    prop.put("result", "");
            } catch (final IOException e) {
                Log.logException(e);
            }

            if (post.containsKey("blacklist")) {
                final String blacklist = post.get("blacklist", "");
                final HandleSet urlHashes = new HandleSet(URIMetadataRow.rowdef.primaryKeyLength, URIMetadataRow.rowdef.objectOrder, urlb.size());
                if (post.containsKey("blacklisturls")) {
                    PrintWriter pw;
                    try {
                        final String[] supportedBlacklistTypes = env.getConfig("BlackLists.types", "").split(",");
                        pw = new PrintWriter(new FileWriter(new File(ListManager.listsPath, blacklist), true));
                        DigestURI url;
                        for (final byte[] b: urlb) {
                            try {
                                urlHashes.put(b);
                            } catch (final RowSpaceExceededException e) {
                                Log.logException(e);
                            }
                            final URIMetadataRow e = segment.urlMetadata().load(b);
                            segment.urlMetadata().remove(b);
                            if (e != null) {
                                url = e.metadata().url();
                                pw.println(url.getHost() + "/" + url.getFile());
                                for (final String supportedBlacklistType : supportedBlacklistTypes) {
                                    if (ListManager.listSetContains(supportedBlacklistType + ".BlackLists", blacklist)) {
                                        Switchboard.urlBlacklist.add(
                                                supportedBlacklistType,
                                                url.getHost(),
                                                url.getFile());
                                    }
                                }
                                SearchEventCache.cleanupEvents(true);
                            }
                        }
                        pw.close();
                    } catch (final IOException e) {
                    }
                }

                if (post.containsKey("blacklistdomains")) {
                    PrintWriter pw;
                    try {
                        final String[] supportedBlacklistTypes = Blacklist.BLACKLIST_TYPES_STRING.split(",");
                        pw = new PrintWriter(new FileWriter(new File(ListManager.listsPath, blacklist), true));
                        DigestURI url;
                        for (final byte[] b: urlb) {
                            try {
                                urlHashes.put(b);
                            } catch (final RowSpaceExceededException e) {
                                Log.logException(e);
                            }
                            final URIMetadataRow e = segment.urlMetadata().load(b);
                            segment.urlMetadata().remove(b);
                            if (e != null) {
                                url = e.metadata().url();
                                pw.println(url.getHost() + "/.*");
                                for (final String supportedBlacklistType : supportedBlacklistTypes) {
                                    if (ListManager.listSetContains(supportedBlacklistType + ".BlackLists", blacklist)) {
                                        Switchboard.urlBlacklist.add(
                                                supportedBlacklistType,
                                                url.getHost(), ".*");
                                    }
                                }
                            }
                        }
                        pw.close();
                    } catch (final IOException e) {
                    }
                }
                try {
                    segment.termIndex().remove(keyhash, urlHashes);
                } catch (final IOException e) {
                    Log.logException(e);
                }
            }

            if (prop.getInt("searchresult", 0) == 3) listHosts(prop, keyhash, sb);
        }


        // insert constants
        prop.putNum("wcount", segment.termIndex().sizesMax());
        // return rewrite properties
        return prop;
    }

    public static void genURLList(final serverObjects prop, final byte[] keyhash, final String keystring, final RankingProcess ranked, final Bitfield flags, final int maxlines) {
        // search for a word hash and generate a list of url links
        final String keyhashs = ASCII.String(keyhash);
        prop.put("genUrlList_keyHash", keyhashs);

        if (ranked.filteredCount() == 0) {
            prop.put("genUrlList", 1);
            prop.put("genUrlList_count", 0);
            prop.put("searchresult", 2);
        } else {
            prop.put("genUrlList", 2);
            prop.put("searchresult", 3);
            prop.put("genUrlList_flags", (flags == null) ? "" : flags.exportB64());
            prop.put("genUrlList_lines", maxlines);
            int i = 0;
            DigestURI url;
            URIMetadataRow entry;
            String us;
            long rn = -1;
            while (!ranked.isEmpty() && (entry = ranked.takeURL(false, 1000)) != null) {
                if ((entry == null) || (entry.metadata() == null)) continue;
                url = entry.metadata().url();
                if (url == null) continue;
                us = url.toNormalform(false, false);
                if (rn == -1) rn = entry.ranking();
                prop.put("genUrlList_urlList_"+i+"_urlExists", "1");
                prop.put("genUrlList_urlList_"+i+"_urlExists_urlhxCount", i);
                prop.putHTML("genUrlList_urlList_"+i+"_urlExists_urlhxValue", entry.word().urlhash());
                prop.putHTML("genUrlList_urlList_"+i+"_urlExists_keyString", keystring);
                prop.put("genUrlList_urlList_"+i+"_urlExists_keyHash", keyhashs);
                prop.putHTML("genUrlList_urlList_"+i+"_urlExists_urlString", us);
                prop.put("genUrlList_urlList_"+i+"_urlExists_urlStringShort", (us.length() > 40) ? (us.substring(0, 20) + "<br>" + us.substring(20,  40) + "...") : ((us.length() > 30) ? (us.substring(0, 20) + "<br>" + us.substring(20)) : us));
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_ranking", (entry.ranking() - rn));
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_domlength", DigestURI.domLengthEstimation(entry.hash()));
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_ybr", BlockRank.ranking(entry.hash()));
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_tf", 1000.0 * entry.word().termFrequency());
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_authority", (ranked.getOrder() == null) ? -1 : ranked.getOrder().authority(ASCII.String(entry.hash(), 6, 6)));
                prop.put("genUrlList_urlList_"+i+"_urlExists_date", GenericFormatter.SHORT_DAY_FORMATTER.format(new Date(entry.word().lastModified())));
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_wordsintitle", entry.word().wordsintitle());
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_wordsintext", entry.word().wordsintext());
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_phrasesintext", entry.word().phrasesintext());
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_llocal", entry.word().llocal());
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_lother", entry.word().lother());
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_hitcount", entry.word().hitcount());
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_worddistance", 0);
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_ybr", BlockRank.ranking(entry.hash()));
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_pos", entry.word().minposition());
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_phrase", entry.word().posofphrase());
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_posinphrase", entry.word().posinphrase());
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_urlcomps", entry.word().urlcomps());
                prop.putNum("genUrlList_urlList_"+i+"_urlExists_urllength", entry.word().urllength());
                prop.put("genUrlList_urlList_"+i+"_urlExists_props",
                        ((entry.word().flags().get(Condenser.flag_cat_indexof)) ? "appears on index page, " : "") +
                        ((entry.word().flags().get(Condenser.flag_cat_hasimage)) ? "contains images, " : "") +
                        ((entry.word().flags().get(Condenser.flag_cat_hasaudio)) ? "contains audio, " : "") +
                        ((entry.word().flags().get(Condenser.flag_cat_hasvideo)) ? "contains video, " : "") +
                        ((entry.word().flags().get(Condenser.flag_cat_hasapp)) ? "contains applications, " : "") +
                        ((entry.word().flags().get(WordReferenceRow.flag_app_dc_identifier)) ? "appears in url, " : "") +
                        ((entry.word().flags().get(WordReferenceRow.flag_app_dc_title)) ? "appears in title, " : "") +
                        ((entry.word().flags().get(WordReferenceRow.flag_app_dc_creator)) ? "appears in author, " : "") +
                        ((entry.word().flags().get(WordReferenceRow.flag_app_dc_subject)) ? "appears in subject, " : "") +
                        ((entry.word().flags().get(WordReferenceRow.flag_app_dc_description)) ? "appears in description, " : "") +
                        ((entry.word().flags().get(WordReferenceRow.flag_app_emphasized)) ? "appears emphasized, " : "") +
                        ((DigestURI.probablyRootURL(entry.word().urlhash())) ? "probably root url" : "")
                );
                if (Switchboard.urlBlacklist.isListed(Blacklist.BLACKLIST_DHT, url)) {
                    prop.put("genUrlList_urlList_"+i+"_urlExists_urlhxChecked", "1");
                }
                i++;
                if ((maxlines >= 0) && (i >= maxlines)) break;
            }
            final Iterator<byte[]> iter = ranked.miss(); // iterates url hash strings
            byte[] b;
            while (iter.hasNext()) {
                b = iter.next();
                prop.put("genUrlList_urlList_" + i + "_urlExists", "0");
                prop.put("genUrlList_urlList_" + i + "_urlExists_urlhxCount", i);
                prop.putHTML("genUrlList_urlList_" + i + "_urlExists_urlhxValue", b);
                i++;
            }
            prop.put("genUrlList_urlList", i);
            prop.putHTML("genUrlList_keyString", keystring);
            prop.put("genUrlList_count", i);
            putBlacklists(prop, FileUtils.getDirListing(ListManager.listsPath));
        }
    }

    public static void putBlacklists(final serverObjects prop, final List<String> lists) {
        prop.put("genUrlList_blacklists", lists.size());
        int i = 0;
        for (final String list : lists)
            prop.put("genUrlList_blacklists_" + i++ + "_name", list);
    }

    public static Bitfield compileFlags(final serverObjects post) {
        final Bitfield b = new Bitfield(4);
        if (post.get("allurl", "").equals("on")) return null;
        if (post.get("flags") != null) {
            if (post.get("flags","").length() == 0) return null;
            return new Bitfield(4, post.get("flags"));
        }
        if (post.get("description", "").equals("on")) b.set(WordReferenceRow.flag_app_dc_description, true);
        if (post.get("title", "").equals("on")) b.set(WordReferenceRow.flag_app_dc_title, true);
        if (post.get("creator", "").equals("on")) b.set(WordReferenceRow.flag_app_dc_creator, true);
        if (post.get("subject", "").equals("on")) b.set(WordReferenceRow.flag_app_dc_subject, true);
        if (post.get("url", "").equals("on")) b.set(WordReferenceRow.flag_app_dc_identifier, true);
        if (post.get("emphasized", "").equals("on")) b.set(WordReferenceRow.flag_app_emphasized, true);
        if (post.get("image", "").equals("on")) b.set(Condenser.flag_cat_hasimage, true);
        if (post.get("audio", "").equals("on")) b.set(Condenser.flag_cat_hasaudio, true);
        if (post.get("video", "").equals("on")) b.set(Condenser.flag_cat_hasvideo, true);
        if (post.get("app", "").equals("on")) b.set(Condenser.flag_cat_hasapp, true);
        if (post.get("indexof", "").equals("on")) b.set(Condenser.flag_cat_indexof, true);
        return b;
    }

    public static void listHosts(final serverObjects prop, final byte[] startHash, final Switchboard sb) {
        // list known hosts
        yacySeed seed;
        int hc = 0;
        prop.put("searchresult_keyhash", startHash);
        final Iterator<yacySeed> e = PeerSelection.getAcceptRemoteIndexSeeds(sb.peers, startHash, sb.peers.sizeConnected(), true);
        while (e.hasNext()) {
            seed = e.next();
            if (seed != null) {
                prop.put("searchresult_hosts_" + hc + "_hosthash", seed.hash);
                prop.putHTML("searchresult_hosts_" + hc + "_hostname", seed.hash + " " + seed.get(yacySeed.NAME, "nameless"));
                hc++;
            }
        }
        prop.put("searchresult_hosts", hc);
    }

    public static RankingProcess genSearchresult(final serverObjects prop, final Switchboard sb, final Segment segment, final byte[] keyhash, final Bitfield filter) {
        final QueryParams query = new QueryParams(ASCII.String(keyhash), -1, filter, segment, sb.getRanking(), "IndexControlRWIs_p");
        final ReferenceOrder order = new ReferenceOrder(query.ranking, UTF8.getBytes(query.targetlang));
        final RankingProcess ranked = new RankingProcess(query, order, Integer.MAX_VALUE);
        ranked.run();

        if (ranked.filteredCount() == 0) {
            prop.put("searchresult", 2);
            prop.put("searchresult_wordhash", keyhash);
        } else {
            prop.put("searchresult", 3);
            prop.put("searchresult_allurl", ranked.filteredCount());
            prop.put("searchresult_description", ranked.flagCount()[WordReferenceRow.flag_app_dc_description]);
            prop.put("searchresult_title", ranked.flagCount()[WordReferenceRow.flag_app_dc_title]);
            prop.put("searchresult_creator", ranked.flagCount()[WordReferenceRow.flag_app_dc_creator]);
            prop.put("searchresult_subject", ranked.flagCount()[WordReferenceRow.flag_app_dc_subject]);
            prop.put("searchresult_url", ranked.flagCount()[WordReferenceRow.flag_app_dc_identifier]);
            prop.put("searchresult_emphasized", ranked.flagCount()[WordReferenceRow.flag_app_emphasized]);
            prop.put("searchresult_image", ranked.flagCount()[Condenser.flag_cat_hasimage]);
            prop.put("searchresult_audio", ranked.flagCount()[Condenser.flag_cat_hasaudio]);
            prop.put("searchresult_video", ranked.flagCount()[Condenser.flag_cat_hasvideo]);
            prop.put("searchresult_app", ranked.flagCount()[Condenser.flag_cat_hasapp]);
            prop.put("searchresult_indexof", ranked.flagCount()[Condenser.flag_cat_indexof]);
        }
        return ranked;
    }
}