mirror of
https://github.com/yacy/yacy_search_server.git
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788288eb9e
The default schema uses only some of them and the resting search index has now the following properties: - webgraph size will have about 40 times as much entries as default index - the complete index size will increase and may be about the double size of current amount As testing showed, not much indexing performance is lost. The default index will be smaller (moved fields out of it); thus searching can be faster. The new index will cause that some old parts in YaCy can be removed, i.e. specialized webgraph data and the noload crawler. The new index will make it possible to: - search within link texts of linked but not indexed documents (about 20 times of document index in size!!) - get a very detailed link graph - enhance ranking using a complete link graph To get the full access to the new index, the API to solr has now two access points: one with attribute core=collection1 for the default search index and core=webgraph to the new webgraph search index. This is also avaiable for p2p operation but client access is not yet implemented.
462 lines
21 KiB
Java
462 lines
21 KiB
Java
//ViewFile.java
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//-----------------------
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//part of YaCy
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//(C) by Michael Peter Christen; mc@yacy.net
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//first published on http://www.anomic.de
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//Frankfurt, Germany, 2004
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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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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//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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//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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//you must compile this file with
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//javac -classpath .:../Classes Status.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.util.Arrays;
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import java.util.Collection;
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import java.util.Enumeration;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.Properties;
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import net.yacy.cora.document.ASCII;
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import net.yacy.cora.document.MultiProtocolURI;
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import net.yacy.cora.document.UTF8;
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import net.yacy.cora.federate.yacy.CacheStrategy;
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import net.yacy.cora.lod.JenaTripleStore;
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import net.yacy.cora.lod.vocabulary.YaCyMetadata;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.crawler.data.Cache;
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import net.yacy.crawler.data.CrawlQueues;
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import net.yacy.crawler.retrieval.Response;
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import net.yacy.document.Condenser;
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import net.yacy.document.Document;
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import net.yacy.document.LibraryProvider;
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import net.yacy.document.Parser;
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import net.yacy.document.SentenceReader;
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import net.yacy.document.WordTokenizer;
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import net.yacy.document.parser.html.CharacterCoding;
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import net.yacy.document.parser.html.ImageEntry;
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import net.yacy.kelondro.data.meta.DigestURI;
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import net.yacy.kelondro.data.meta.URIMetadataNode;
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import net.yacy.search.Switchboard;
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import net.yacy.search.index.Segment;
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import net.yacy.server.serverObjects;
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import net.yacy.server.serverSwitch;
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import com.hp.hpl.jena.rdf.model.Model;
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public class ViewFile {
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public static final int VIEW_MODE_NO_TEXT = 0;
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public static final int VIEW_MODE_AS_PLAIN_TEXT = 1;
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public static final int VIEW_MODE_AS_PARSED_TEXT = 2;
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public static final int VIEW_MODE_AS_PARSED_SENTENCES = 3;
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public static final int VIEW_MODE_AS_IFRAME_FROM_WEB = 4;
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public static final int VIEW_MODE_AS_IFRAME_FROM_CACHE = 5;
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public static final int VIEW_MODE_AS_LINKLIST = 6;
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public static final int VIEW_MODE_AS_PARSED_WORDS = 7;
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private static final String HIGHLIGHT_CSS = "searchHighlight";
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private static final int MAX_HIGHLIGHTS = 6;
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public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
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final serverObjects prop = new serverObjects();
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final Switchboard sb = (Switchboard)env;
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prop.put("topmenu", sb.getConfigBool("publicTopmenu", true) ? 1 : 0);
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if (post == null) {
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prop.putHTML("error_words", "");
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prop.put("error_vMode-sentences", "1");
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prop.put("error", "1");
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prop.put("url", "");
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prop.put("viewMode", VIEW_MODE_NO_TEXT);
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return prop;
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}
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// get segment
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Segment indexSegment = sb.index;
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final boolean authorized = sb.verifyAuthentication(header);
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if (post.containsKey("words"))
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prop.putHTML("error_words", post.get("words"));
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else {
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prop.putHTML("error_words", "");
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}
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final String viewMode = post.get("viewMode","parsed");
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prop.put("error_vMode-" + viewMode, "1");
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DigestURI url = null;
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String descr = "";
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final int wordCount = 0;
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int size = 0;
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boolean pre = false;
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// get the url hash from which the content should be loaded
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String urlHash = post.get("urlHash", post.get("urlhash", ""));
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final String urlString = post.get("url", "");
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if (urlString.length() > 0) try {
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// this call forces the peer to download web pages
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// it is therefore protected by the admin password
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if (!sb.verifyAuthentication(header)) {
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prop.authenticationRequired();
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return prop;
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}
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// define an url by post parameter
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url = new DigestURI(MultiProtocolURI.unescape(urlString));
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urlHash = ASCII.String(url.hash());
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pre = post.getBoolean("pre");
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} catch (final MalformedURLException e) {}
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URIMetadataNode urlEntry = null;
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// get the urlEntry that belongs to the url hash
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//boolean ue = urlHash.length() > 0 && indexSegment.exists(ASCII.getBytes(urlHash));
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//if (ue) Log.logInfo("ViewFile", "exists(" + urlHash + ")");
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if (urlHash.length() > 0 && (urlEntry = indexSegment.fulltext().getMetadata(ASCII.getBytes(urlHash))) != null) {
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// get the url that belongs to the entry
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if (urlEntry == null || urlEntry.url() == null) {
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prop.put("error", "3");
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prop.put("viewMode", VIEW_MODE_NO_TEXT);
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return prop;
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}
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url = urlEntry.url();
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descr = urlEntry.dc_title();
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//urlEntry.wordCount();
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size = urlEntry.size();
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pre = urlEntry.flags().get(Condenser.flag_cat_indexof);
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}
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prop.put("error_inurldb", urlEntry == null ? 0 : 1);
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if (url == null) {
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prop.put("error", "1");
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prop.put("viewMode", VIEW_MODE_NO_TEXT);
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prop.put("url", "");
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return prop;
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}
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prop.put("url", url.toNormalform(true));
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// loading the resource content as byte array
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prop.put("error_incache", Cache.has(url.hash()) ? 1 : 0);
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Response response = null;
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try {
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response = sb.loader.load(sb.loader.request(url, true, false), authorized ? CacheStrategy.IFEXIST : CacheStrategy.CACHEONLY, Integer.MAX_VALUE, null, CrawlQueues.queuedMinLoadDelay);
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} catch (final IOException e) {
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prop.put("error", "4");
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prop.put("error_errorText", "error loading resource: " + e.getMessage());
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prop.put("viewMode", VIEW_MODE_NO_TEXT);
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return prop;
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}
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if (response == null) {
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prop.put("error", "4");
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prop.put("error_errorText", "No resource available");
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prop.put("viewMode", VIEW_MODE_NO_TEXT);
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return prop;
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}
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final String[] wordArray = wordArray(post.get("words", null));
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if (viewMode.equals("plain")) {
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// TODO: how to handle very large files here ?
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String content;
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try {
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content = UTF8.String(response.getContent());
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} catch (final Exception e) {
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prop.put("error", "4");
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prop.putHTML("error_errorText", e.getMessage());
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prop.put("viewMode", VIEW_MODE_NO_TEXT);
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return prop;
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}
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prop.put("error", "0");
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prop.put("viewMode", VIEW_MODE_AS_PLAIN_TEXT);
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prop.put("viewMode_plainText", markup(wordArray, content).replaceAll("\n", "<br />").replaceAll("\t", " "));
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} else if (viewMode.equals("iframeWeb")) {
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prop.put("viewMode", VIEW_MODE_AS_IFRAME_FROM_WEB);
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prop.put("viewMode_url", url.toNormalform(true));
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} else if (viewMode.equals("iframeCache")) {
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prop.put("viewMode", VIEW_MODE_AS_IFRAME_FROM_CACHE);
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final String ext = url.getFileExtension();
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prop.put("viewMode_png", 0);
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prop.put("viewMode_html", 0);
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if (ext.length() > 0 && "jpg.jpeg.png.gif".indexOf(ext) >= 0) {
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prop.put("viewMode_png", 1);
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prop.put("viewMode_png_url", url.toNormalform(true));
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} else {
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prop.put("viewMode_html", 1);
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prop.put("viewMode_html_url", url.toNormalform(true));
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}
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} else if (viewMode.equals("parsed") || viewMode.equals("sentences") || viewMode.equals("words") || viewMode.equals("links")) {
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// parsing the resource content
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Document document = null;
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try {
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document = Document.mergeDocuments(response.url(), response.getMimeType(), response.parse());
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if (document == null) {
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prop.put("error", "5");
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prop.put("error_errorText", "Unknown error");
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prop.put("viewMode", VIEW_MODE_NO_TEXT);
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return prop;
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}
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} catch (final Parser.Failure e) {
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prop.put("error", "5");
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prop.putHTML("error_errorText", e.getMessage());
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prop.put("viewMode", VIEW_MODE_NO_TEXT);
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return prop;
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}
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if (viewMode.equals("parsed")) {
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final String content = document.getTextString();
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// content = wikiCode.replaceHTML(content); // added by Marc Nause
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prop.put("viewMode", VIEW_MODE_AS_PARSED_TEXT);
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prop.put("viewMode_title", document.dc_title());
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prop.put("viewMode_creator", document.dc_creator());
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prop.put("viewMode_subject", document.dc_subject(','));
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prop.put("viewMode_description", document.dc_description());
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prop.put("viewMode_publisher", document.dc_publisher());
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prop.put("viewMode_format", document.dc_format());
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prop.put("viewMode_identifier", document.dc_identifier());
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prop.put("viewMode_source", url.toString());
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prop.put("viewMode_lat", document.lat());
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prop.put("viewMode_lon", document.lon());
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prop.put("viewMode_parsedText", markup(wordArray, content).replaceAll("\n", "<br />").replaceAll("\t", " "));
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} else if (viewMode.equals("sentences")) {
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prop.put("viewMode", VIEW_MODE_AS_PARSED_SENTENCES);
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final Collection<StringBuilder> sentences = document.getSentences(pre);
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boolean dark = true;
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int i = 0;
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String sentence;
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if (sentences != null) {
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// Search word highlighting
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for (final StringBuilder s: sentences) {
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sentence = s.toString();
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if (sentence.trim().length() > 0) {
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prop.put("viewMode_sentences_" + i + "_nr", i + 1);
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prop.put("viewMode_sentences_" + i + "_text", markup(wordArray, sentence));
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prop.put("viewMode_sentences_" + i + "_dark", dark ? "1" : "0");
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dark = !dark;
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i++;
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}
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}
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}
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prop.put("viewMode_sentences", i);
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} else if (viewMode.equals("words")) {
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prop.put("viewMode", VIEW_MODE_AS_PARSED_WORDS);
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final Collection<StringBuilder> sentences = document.getSentences(pre);
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boolean dark = true;
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int i = 0;
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String sentence;
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StringBuilder token;
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if (sentences != null) {
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// Search word highlighting
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for (final StringBuilder s: sentences) {
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sentence = s.toString();
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Enumeration<StringBuilder> tokens = null;
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tokens = new WordTokenizer(new SentenceReader(sentence), LibraryProvider.dymLib);
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while (tokens.hasMoreElements()) {
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token = tokens.nextElement();
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if (token.length() > 0) {
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prop.put("viewMode_words_" + i + "_nr", i + 1);
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prop.put("viewMode_words_" + i + "_word", token.toString());
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prop.put("viewMode_words_" + i + "_dark", dark ? "1" : "0");
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dark = !dark;
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i++;
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}
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}
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}
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}
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prop.put("viewMode_words", i);
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} else if (viewMode.equals("links")) {
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prop.put("viewMode", VIEW_MODE_AS_LINKLIST);
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boolean dark = true;
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int i = 0;
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i += putMediaInfo(prop, wordArray, i, document.getVideolinks(), "video", (i % 2 == 0), document.getAnchors());
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i += putMediaInfo(prop, wordArray, i, document.getAudiolinks(), "audio", (i % 2 == 0), document.getAnchors());
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dark = (i % 2 == 0);
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final Map<DigestURI, ImageEntry> ts = document.getImages();
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final Iterator<ImageEntry> tsi = ts.values().iterator();
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ImageEntry entry;
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while (tsi.hasNext()) {
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entry = tsi.next();
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prop.put("viewMode_links_" + i + "_nr", i);
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prop.put("viewMode_links_" + i + "_dark", dark ? "1" : "0");
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prop.put("viewMode_links_" + i + "_type", "image");
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prop.put("viewMode_links_" + i + "_text", (entry.alt().isEmpty()) ? " " : markup(wordArray, entry.alt()));
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prop.put("viewMode_links_" + i + "_url", entry.url().toNormalform(true));
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prop.put("viewMode_links_" + i + "_link", markup(wordArray, entry.url().toNormalform(true)));
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if (entry.width() > 0 && entry.height() > 0) {
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prop.put("viewMode_links_" + i + "_rel", entry.width() + "x" + entry.height() + " Pixel");
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} else {
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prop.put("viewMode_links_" + i + "_rel", "");
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}
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prop.put("viewMode_links_" + i + "_name", "");
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dark = !dark;
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i++;
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}
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i += putMediaInfo(prop, wordArray, i, document.getApplinks(), "app", (i % 2 == 0), document.getAnchors());
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i += putMediaInfo(prop, wordArray, i, document.getHyperlinks(), "link", (i % 2 == 0), document.getAnchors());
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prop.put("viewMode_links", i);
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}
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if (document != null) document.close();
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}
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prop.put("error", "0");
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prop.put("error_url", url.toNormalform(true));
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prop.put("error_hash", urlHash);
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prop.put("error_wordCount", wordCount);
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prop.putHTML("error_desc", (descr.isEmpty()) ? " " : descr);
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prop.putNum("error_size", size);
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prop.put("error_mimeTypeAvailable", (response.getMimeType() == null) ? "0" : "1");
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prop.put("error_mimeTypeAvailable_mimeType", response.getMimeType());
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Model model = JenaTripleStore.getSubmodelBySubject(YaCyMetadata.hashURI(url.hash()));
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prop.putXML("error_triples", JenaTripleStore.getRDFByModel(model));
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if (urlEntry == null) {
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prop.put("error_referrerHash", "");
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prop.put("error_moddate", "");
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prop.put("error_loaddate", "");
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prop.put("error_freshdate", "");
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prop.put("error_hosthash", "");
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prop.putHTML("error_dc_creator", "");
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prop.putHTML("error_dc_publisher", "");
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prop.putHTML("error_dc_subject", "");
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prop.put("error_md5", "");
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prop.put("error_lat", "");
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prop.put("error_lon", "");
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prop.put("error_doctype", "");
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prop.put("error_language", "");
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prop.put("error_flags", "");
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prop.put("error_wordCount", "");
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prop.put("error_llocal", "");
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prop.put("error_lother", "");
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prop.put("error_limage", "");
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prop.put("error_laudio", "");
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prop.put("error_lvideo", "");
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prop.put("error_lapp", "");
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prop.put("error_collections", "");
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} else {
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prop.put("error_referrerHash", urlEntry.referrerHash());
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prop.put("error_moddate", urlEntry.moddate());
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prop.put("error_loaddate", urlEntry.loaddate());
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prop.put("error_freshdate", urlEntry.freshdate());
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prop.put("error_hosthash", urlEntry.hosthash());
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prop.putHTML("error_dc_creator", urlEntry.dc_creator());
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prop.putHTML("error_dc_publisher", urlEntry.dc_publisher());
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prop.putHTML("error_dc_subject", urlEntry.dc_subject());
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prop.put("error_md5", urlEntry.md5());
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prop.put("error_lat", urlEntry.lat());
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prop.put("error_lon", urlEntry.lon());
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prop.put("error_doctype", Response.doctype2mime(url.getFileExtension(), urlEntry.doctype()));
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prop.put("error_language", urlEntry.language());
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prop.put("error_flags", urlEntry.flags().toString());
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prop.put("error_wordCount", urlEntry.wordCount());
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prop.put("error_llocal", urlEntry.llocal());
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prop.put("error_lother", urlEntry.lother());
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prop.put("error_limage", urlEntry.limage());
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prop.put("error_laudio", urlEntry.laudio());
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prop.put("error_lvideo", urlEntry.lvideo());
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prop.put("error_lapp", urlEntry.lapp());
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prop.put("error_collections", Arrays.toString(urlEntry.collections()));
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}
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return prop;
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}
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private static final String[] wordArray(String words) {
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String[] w = new String[0];
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if (words == null || words.isEmpty()) return w;
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if (words.length() > 1 && words.charAt(0) == '[' && words.charAt(words.length() - 1) == ']') {
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words = words.substring(1, words.length() - 1);
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}
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words = UTF8.decodeURL(words);
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if (words.indexOf(' ',0) >= 0) return words.split(" ");
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if (words.indexOf(',',0) >= 0) return words.split(",");
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if (words.indexOf('+',0) >= 0) return words.split("\\+");
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w = new String[1];
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w[0] = words;
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return w;
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}
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private static final String markup(final String[] wordArray, String message) {
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message = CharacterCoding.unicode2html(message, true);
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if (wordArray != null) {
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int j = 0;
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for (String currentWord : wordArray) {
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currentWord = currentWord.trim();
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// TODO: replace upper-/lowercase words as well
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message = message.replaceAll(currentWord,
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"<span class=\"" + HIGHLIGHT_CSS + ((j++ % MAX_HIGHLIGHTS) + 1) + "\">" +
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currentWord +
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"</span>");
|
|
}
|
|
}
|
|
return message;
|
|
}
|
|
|
|
private static int putMediaInfo(
|
|
final serverObjects prop,
|
|
final String[] wordArray,
|
|
int c,
|
|
final Map<DigestURI, String> media,
|
|
final String type,
|
|
boolean dark,
|
|
final Map<DigestURI, Properties> alllinks) {
|
|
int i = 0;
|
|
for (final Map.Entry<DigestURI, String> entry : media.entrySet()) {
|
|
final Properties p = alllinks.get(entry.getKey());
|
|
final String name = p.getProperty("name", ""); // the name attribute
|
|
final String rel = p.getProperty("rel", ""); // the rel-attribute
|
|
final String text = p.getProperty("text", ""); // the text between the <a></a> tag
|
|
|
|
prop.put("viewMode_links_" + c + "_nr", c);
|
|
prop.put("viewMode_links_" + c + "_dark", ((dark) ? 1 : 0));
|
|
prop.putHTML("viewMode_links_" + c + "_type", type);
|
|
prop.put("viewMode_links_" + c + "_text", text);
|
|
prop.put("viewMode_links_" + c + "_link", markup(wordArray, entry.getKey().toNormalform(true)));
|
|
prop.put("viewMode_links_" + c + "_url", entry.getKey().toNormalform(true));
|
|
prop.put("viewMode_links_" + c + "_rel", rel);
|
|
prop.put("viewMode_links_" + c + "_name", name);
|
|
dark = !dark;
|
|
c++;
|
|
i++;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
}
|