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269 lines
11 KiB
269 lines
11 KiB
// index.java
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// -----------------------
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// part of the AnomicHTTPD caching proxy
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// (C) by Michael Peter Christen; mc@anomic.de
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004
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// last major change: 12.07.2003
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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// you must compile this file with
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// javac -classpath .:../classes index.java
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// if the shell's current path is HTROOT
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import java.io.IOException;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.HashMap;
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import java.util.TreeSet;
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import de.anomic.htmlFilter.htmlFilterContentScraper;
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import de.anomic.http.httpHeader;
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import de.anomic.kelondro.kelondroMSetTools;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.server.serverByteBuffer;
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import de.anomic.server.serverCore;
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import de.anomic.server.serverDate;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverSwitch;
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import de.anomic.yacy.yacyCore;
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public class index {
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public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
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plasmaSwitchboard sb = (plasmaSwitchboard) env;
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// case if no values are requested
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if ((post == null) || (env == null)) {
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// save referrer
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//System.out.println("HEADER=" + header.toString());
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String referer = (String) header.get("Referer");
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if (referer != null) {
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URL url;
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try { url = new URL(referer); } catch (MalformedURLException e) { url = null; }
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if ((url != null) && (serverCore.isNotLocal(url))) {
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HashMap referrerprop = new HashMap();
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referrerprop.put("count", "1");
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referrerprop.put("clientip", header.get("CLIENTIP"));
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referrerprop.put("useragent", header.get("User-Agent"));
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referrerprop.put("date", (new serverDate()).toShortString(false));
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try { sb.facilityDB.update("backlinks", referer, referrerprop); } catch (IOException e) {}
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}
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}
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// we create empty entries for template strings
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serverObjects prop = new serverObjects();
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prop.put("promoteSearchPageGreeting", env.getConfig("promoteSearchPageGreeting", ""));
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prop.put("former", "");
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prop.put("num-results", 0);
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prop.put("excluded", 0);
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prop.put("combine", 0);
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prop.put("resultbottomline", 0);
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prop.put("count-10", 0);
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prop.put("count-50", 0);
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prop.put("count-100", 0);
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prop.put("count-1000", 0);
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prop.put("order-quality", 0);
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prop.put("order-date", 0);
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prop.put("resource-global", 0);
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prop.put("resource-local", 0);
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prop.put("time-1", 0);
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prop.put("time-3", 0);
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prop.put("time-10", 1);
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prop.put("time-30", 0);
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prop.put("time-60", 0);
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prop.put("results", "");
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prop.put("urlmaskoptions", 0);
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prop.put("urlmaskoptions_urlmaskfilter", ".*");
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return prop;
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}
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// process search words
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String querystring = (String) post.get("search", "");
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try { sb.facilityDB.update("zeitgeist", querystring, post); } catch (IOException e) {}
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TreeSet query = cleanQuery(querystring);
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// filter out stopwords
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TreeSet filtered = kelondroMSetTools.joinConstructive(query, plasmaSwitchboard.stopwords);
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if (filtered.size() > 0) kelondroMSetTools.excludeDestructive(query, plasmaSwitchboard.stopwords);
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// prepare search order
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String order = (String) post.get("order", "");
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int count = Integer.parseInt((String) post.get("count", "10"));
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boolean global = ((String) post.get("resource", "global")).equals("global");
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long searchtime = 1000 * Long.parseLong((String) post.get("time", "1"));
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boolean yacyonline = ((yacyCore.seedDB != null) &&
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(yacyCore.seedDB.mySeed != null) &&
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(yacyCore.seedDB.mySeed.getAddress() != null));
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String order1 = (order.equals("Quality-Date")) ? "quality" : "date";
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String order2 = (order.equals("Quality-Date")) ? "date" : "quality";
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String urlmask="";
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if(post.containsKey("urlmask") && post.get("urlmask").equals("no")){
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urlmask=".*";
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}else{
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urlmask = (post.containsKey("urlmaskfilter")) ? (String) post.get("urlmaskfilter") : ".*";
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}
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// do the search
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serverObjects prop = ((plasmaSwitchboard) env).searchFromLocal(query, order1, order2, count,
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((global) && (yacyonline) && (!(env.getConfig("last-search","").equals(querystring)))),
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searchtime, urlmask);
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// remember the last search expression
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env.setConfig("last-search", querystring);
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// process result of search
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prop.put("resultbottomline", 0);
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if (filtered.size() > 0){
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prop.put("excluded", 1);
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prop.put("excluded_stopwords", filtered.toString());
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} else {
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prop.put("excluded", 0);
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}
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if ((prop == null) || (prop.size() == 0)) {
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if (((String) post.get("search", "")).length() < 3)
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prop.put("num-results", 2);//no results - at least 3 chars
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else
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prop.put("num-results", 1);//no results
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} else {
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int linkcount = Integer.parseInt(prop.get("linkcount", "0"));
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int totalcount = Integer.parseInt(prop.get("totalcount", "0"));
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if (totalcount > 10) {
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Object[] references = (Object[]) prop.get("references", new String[0]);
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prop.put("num-results", 4);
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prop.put("num-results_linkcount", linkcount);
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prop.put("num-results_totalcount", totalcount);
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int hintcount = references.length;
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if (hintcount > 0) {
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if (hintcount > 16) hintcount = 16;
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prop.put("combine", 1);
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String word;
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int p;
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for (int i = 0; i < hintcount; i++) {
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word = (String) references[i];
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if (word != null) {
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prop.put("combine_words_" + i + "_word", word);
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prop.put("combine_words_" + i + "_newsearch", ((String) post.get("search", "")).replace(' ', '+') + "+" + word);
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prop.put("combine_words_" + i + "_count", count);
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prop.put("combine_words_" + i + "_order", order);
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prop.put("combine_words_" + i + "_resource", ((global) ? "global" : "local"));
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prop.put("combine_words_" + i + "_time", (searchtime / 1000));
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}
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prop.put("combine_words", i);
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}
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}
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} else {
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if (totalcount == 0)
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prop.put("num-results", 3);//long
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else {
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prop.put("num-results", 4);
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prop.put("num-results_linkcount", linkcount);
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prop.put("num-results_totalcount", totalcount);
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}
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}
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}
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if(urlmask.equals(".*")){
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prop.put("urlmaskoptions", 0);
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} else {
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prop.put("urlmaskoptions", 1);
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}
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prop.put("urlmaskoptions_urlmaskfilter", urlmask);
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if (yacyonline) {
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if (global) {
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prop.put("resultbottomline", 1);
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prop.put("resultbottomline_globalresults", prop.get("globalresults", "0"));
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} else {
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prop.put("resultbottomline", 2);
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}
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} else {
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if (global)
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prop.put("resultbottomlien", 3);
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else
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prop.put("resultbottomline", 4);
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}
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prop.put("count-10", ((count == 10)) ? 1 : 0);
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prop.put("count-50", ((count == 50)) ? 1 : 0);
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prop.put("count-100", ((count == 100)) ? 1 : 0);
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prop.put("count-1000", ((count == 1000)) ? 1 : 0);
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prop.put("order-quality", ((order.equals("Quality-Date")) ? 1 : 0));
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prop.put("order-date", ((order.equals("Date-Quality")) ? 1 : 0));
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prop.put("resource-global", ((global) ? 1 : 0));
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prop.put("resource-local", ((!global) ? 1 : 0));
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prop.put("time-1", ((searchtime == 1000) ? 1 : 0));
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prop.put("time-3", ((searchtime == 3000) ? 1 : 0));
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prop.put("time-10", ((searchtime == 10000) ? 1 : 0));
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prop.put("time-30", ((searchtime == 30000) ? 1 : 0));
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prop.put("time-60", ((searchtime == 60000) ? 1 : 0));
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prop.put("former", (String) post.get("search", ""));
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// 'enrich search' variables
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prop.put("num-results_former", (String) post.get("search", ""));
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prop.put("num-results_time", searchtime / 1000);
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prop.put("num-results_count", count);
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prop.put("num-results_resource", (global) ? "global" : "local");
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prop.put("num-results_order", order);
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// return rewrite properties
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prop.put("promoteSearchPageGreeting", env.getConfig("promoteSearchPageGreeting", ""));
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return prop;
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}
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public static TreeSet cleanQuery(String words) {
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// convert Umlaute
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words = htmlFilterContentScraper.convertUmlaute(new serverByteBuffer(words.getBytes())).toString();
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// remove funny symbols
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String seps = "' .,:/-&";
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words = words.toLowerCase().trim();
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int c;
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for (int i = 0; i < seps.length(); i++) {
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if ((c = words.indexOf(seps.charAt(i))) >= 0) words = words.substring(0, c) + (((c + 1) < words.length()) ? (" " + words.substring(c + 1)) : "");
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}
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// the string is clean now, but we must generate a set out of it
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String[] a = words.split(" ");
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TreeSet query = new TreeSet(kelondroMSetTools.fastStringComparator);
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for (int i = 0; i < a.length; i++) query.add(a[i]);
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return query;
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}
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}
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