yacy_search_server/htroot/index.java
orbiter 30888e7a2f implementation of search constraints
Such constraints may formulate specific restrictions to web searches
This is implemented by scraping information for constraints from a web
page during parsing, and storing flags to the pages within the web index.

In this first step, only information for index pages ("index of", directory listings)
are scraped and stored in flags
- added new flag class kelondroBitfield
- added scraper method in condenser
- added bitfield structure for all scrape types (see also condenser)
- added bitfield structure for appearance locations (see RWIEntry)
- added handover protocol for remote search and index distribution
- extended kelondroColumn class to hold bitfield types
- added another search attribute on search page (index.html)
- extended search-filter to enable filtering of non-matching constraints
- set all new database types to be default
- refactoring: moved word hash generation to condenser class

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2999 6c8d7289-2bf4-0310-a012-ef5d649a1542
2006-11-23 02:16:30 +00:00

124 lines
5.5 KiB
Java

// index.java
// (C) 2004, 2005, 2006 by Michael Peter Christen; mc@anomic.de, Frankfurt a. M., Germany
// first published 2004 on http://www.anomic.de
//
// 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
//
// You must compile this file with
// javac -classpath .:../classes index.java
// if the shell's current path is HTROOT
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.HashMap;
import de.anomic.http.httpHeader;
import de.anomic.net.URL;
import de.anomic.plasma.plasmaSearchPreOrder;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.server.serverCore;
import de.anomic.server.serverDate;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
public class index {
public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
final plasmaSwitchboard sb = (plasmaSwitchboard) env;
final serverObjects prop = new serverObjects();
boolean authenticated = sb.adminAuthenticated(header) >= 2;
int display = ((post == null) || (!authenticated)) ? 0 : post.getInt("display", 0);
boolean global = (post == null) ? true : post.get("resource", "global").equals("global");
int searchoptions = (post == null) ? 0 : post.getInt("searchoptions", 0);
final boolean indexDistributeGranted = sb.getConfig("allowDistributeIndex", "true").equals("true");
final boolean indexReceiveGranted = sb.getConfig("allowReceiveIndex", "true").equals("true");
final String handover = (post == null) ? "" : post.get("handover", "");
if (!indexDistributeGranted || !indexReceiveGranted) { global = false; }
final String referer = (String) header.get("Referer");
if (referer != null) {
URL url;
try {
url = new URL(referer);
} catch (MalformedURLException e) {
url = null;
}
if ((url != null) && (serverCore.isNotLocal(url))) {
final HashMap referrerprop = new HashMap();
referrerprop.put("count", "1");
referrerprop.put("clientip", header.get("CLIENTIP"));
referrerprop.put("useragent", header.get("User-Agent"));
referrerprop.put("date", (new serverDate()).toShortString(false));
if (sb.facilityDB != null) try {sb.facilityDB.update("backlinks", referer, referrerprop);} catch (IOException e) {}
}
}
// we create empty entries for template strings
String promoteSearchPageGreeting = env.getConfig("promoteSearchPageGreeting", "");
if (promoteSearchPageGreeting.length() == 0) promoteSearchPageGreeting = "P2P WEB SEARCH";
prop.put("promoteSearchPageGreeting", promoteSearchPageGreeting);
prop.put("former", handover);
prop.put("num-results", 0);
prop.put("excluded", 0);
prop.put("combine", 0);
prop.put("resultbottomline", 0);
prop.put("searchoptions", searchoptions);
prop.put("searchoptions_count-10", 1);
prop.put("searchoptions_count-50", 0);
prop.put("searchoptions_count-100", 0);
prop.put("searchoptions_count-1000", 0);
prop.put("searchoptions_order-ybr-date-quality", plasmaSearchPreOrder.canUseYBR() ? 1 : 0);
prop.put("searchoptions_order-ybr-quality-date", 0);
prop.put("searchoptions_order-date-ybr-quality", 0);
prop.put("searchoptions_order-quality-ybr-date", 0);
prop.put("searchoptions_order-date-quality-ybr", plasmaSearchPreOrder.canUseYBR() ? 0 : 1);
prop.put("searchoptions_order-quality-date-ybr", 0);
prop.put("searchoptions_resource-global", ((global) ? 1 : 0));
prop.put("searchoptions_resource-local", ((global) ? 0 : 1));
prop.put("searchoptions_time-1", 0);
prop.put("searchoptions_time-3", 0);
prop.put("searchoptions_time-6", 1);
prop.put("searchoptions_time-10", 0);
prop.put("searchoptions_time-30", 0);
prop.put("searchoptions_time-60", 0);
prop.put("searchoptions_urlmaskoptions", 0);
prop.put("searchoptions_urlmaskoptions_urlmaskfilter", ".*");
prop.put("searchoptions_prefermaskoptions", 0);
prop.put("searchoptions_prefermaskoptions_prefermaskfilter", "");
prop.put("searchoptions_indexofChecked", "");
prop.put("results", "");
prop.put("cat", "href");
prop.put("type", "0");
prop.put("depth", "0");
prop.put("display", display);
prop.put("searchoptions_display", display);
return prop;
}
}