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https://github.com/yacy/yacy_search_server.git
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765943a4b7
in intranets and the internet can now choose to appear as Googlebot. This is an essential necessity to be able to compete in the field of commercial search appliances, since most web pages are these days optimized only for Google and no other search platform any more. All commercial search engine providers have a built-in fake-Google User Agent to be able to get the same search index as Google can do. Without the resistance against obeying to robots.txt in this case, no competition is possible any more. YaCy will always obey the robots.txt when it is used for crawling the web in a peer-to-peer network, but to establish a Search Appliance (like a Google Search Appliance, GSA) it is necessary to be able to behave exactly like a Google crawler. With this change, you will be able to switch the user agent when portal or intranet mode is selected on per-crawl-start basis. Every crawl start can have a different user agent.
360 lines
21 KiB
Java
360 lines
21 KiB
Java
// yacysearchitem.java
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// (C) 2007 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 28.08.2007 on http://yacy.net
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//
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// This is a part of YaCy, a peer-to-peer based web search engine
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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// LICENSE
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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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import java.net.MalformedURLException;
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import java.util.List;
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import net.yacy.cora.date.GenericFormatter;
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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.RSSMessage;
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import net.yacy.cora.document.analysis.Classification;
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import net.yacy.cora.document.analysis.Classification.ContentDomain;
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import net.yacy.cora.protocol.ClientIdentification;
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import net.yacy.cora.protocol.Domains;
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import net.yacy.cora.protocol.HeaderFramework;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.cora.protocol.RequestHeader.FileType;
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import net.yacy.cora.util.ConcurrentLog;
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import net.yacy.crawler.data.Cache;
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import net.yacy.data.URLLicense;
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import net.yacy.kelondro.data.meta.DigestURI;
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import net.yacy.kelondro.util.Formatter;
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import net.yacy.peers.NewsPool;
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import net.yacy.peers.Seed;
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import net.yacy.peers.graphics.ProfilingGraph;
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import net.yacy.search.EventTracker;
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import net.yacy.search.Switchboard;
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import net.yacy.search.SwitchboardConstants;
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import net.yacy.search.query.HeuristicResult;
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import net.yacy.search.query.QueryParams;
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import net.yacy.search.query.SearchEvent;
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import net.yacy.search.query.SearchEventCache;
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import net.yacy.search.query.SearchEventType;
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import net.yacy.search.snippet.ResultEntry;
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import net.yacy.search.snippet.TextSnippet;
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import net.yacy.server.serverObjects;
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import net.yacy.server.serverSwitch;
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import net.yacy.utils.crypt;
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import net.yacy.utils.nxTools;
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public class yacysearchitem {
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private static final String SHORTEN_SUFFIX = "...";
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private static final int SHORTEN_SUFFIX_LENGTH = SHORTEN_SUFFIX.length();
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private static final int MAX_NAME_LENGTH = 60;
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private static final int MAX_URL_LENGTH = 120;
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//private static boolean col = true;
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public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
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final Switchboard sb = (Switchboard) env;
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final serverObjects prop = new serverObjects();
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final String eventID = post.get("eventID", "");
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final boolean authenticated = sb.adminAuthenticated(header) >= 2;
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final int item = post.getInt("item", -1);
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final boolean auth = Domains.isLocalhost(header.get(HeaderFramework.CONNECTION_PROP_CLIENTIP, "")) || sb.verifyAuthentication(header);
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final RequestHeader.FileType fileType = header.fileType();
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// default settings for blank item
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prop.put("content", "0");
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prop.put("rss", "0");
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prop.put("references", "0");
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prop.put("rssreferences", "0");
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prop.put("dynamic", "0");
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// find search event
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final SearchEvent theSearch = SearchEventCache.getEvent(eventID);
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if (theSearch == null) {
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// the event does not exist, show empty page
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return prop;
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}
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// dynamically update count values
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prop.put("offset", theSearch.query.neededResults() - theSearch.query.itemsPerPage() + 1);
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prop.put("itemscount", Formatter.number(Math.min((item < 0) ? theSearch.query.neededResults() : item + 1, theSearch.getResultCount())));
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prop.put("itemsperpage", Formatter.number(theSearch.query.itemsPerPage));
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prop.put("totalcount", Formatter.number(theSearch.getResultCount(), true));
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prop.put("localResourceSize", Formatter.number(theSearch.local_rwi_stored.get() + theSearch.local_solr_stored.get(), true));
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prop.put("remoteResourceSize", Formatter.number(theSearch.remote_rwi_stored.get() + theSearch.remote_solr_stored.get(), true));
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prop.put("remoteIndexCount", Formatter.number(theSearch.remote_rwi_available.get() + theSearch.remote_solr_available.get(), true));
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prop.put("remotePeerCount", Formatter.number(theSearch.remote_rwi_peerCount.get() + theSearch.remote_solr_peerCount.get(), true));
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prop.put("navurlBase", QueryParams.navurlBase("html", theSearch.query, null).toString());
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final String target_special_pattern = sb.getConfig(SwitchboardConstants.SEARCH_TARGET_SPECIAL_PATTERN, "");
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long timeout = item == 0 ? 10000 : (theSearch.query.isLocal() ? 1000 : 3000);
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if (theSearch.query.contentdom == Classification.ContentDomain.TEXT || theSearch.query.contentdom == Classification.ContentDomain.ALL) {
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// text search
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// generate result object
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final ResultEntry result = theSearch.oneResult(item, timeout);
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if (result == null) return prop; // no content
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final String resultUrlstring = result.urlstring();
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final DigestURI resultURL = result.url();
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final String target = sb.getConfig(resultUrlstring.matches(target_special_pattern) ? SwitchboardConstants.SEARCH_TARGET_SPECIAL : SwitchboardConstants.SEARCH_TARGET_DEFAULT, "_self");
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final int port = resultURL.getPort();
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DigestURI faviconURL = null;
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if ((fileType == FileType.HTML || fileType == FileType.JSON) && !sb.isIntranetMode()) try {
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faviconURL = new DigestURI(resultURL.getProtocol() + "://" + resultURL.getHost() + ((port != -1) ? (":" + port) : "") + "/favicon.ico");
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} catch (final MalformedURLException e1) {
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ConcurrentLog.logException(e1);
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faviconURL = null;
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}
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final String resource = theSearch.query.domType.toString();
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final String origQ = theSearch.query.getQueryGoal().getOriginalQueryString(true);
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prop.put("content", 1); // switch on specific content
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prop.put("content_showDate", sb.getConfigBool("search.result.show.date", true) ? 1 : 0);
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prop.put("content_showSize", sb.getConfigBool("search.result.show.size", true) ? 1 : 0);
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prop.put("content_showMetadata", sb.getConfigBool("search.result.show.metadata", true) ? 1 : 0);
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prop.put("content_showParser", sb.getConfigBool("search.result.show.parser", true) ? 1 : 0);
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prop.put("content_showCitation", sb.getConfigBool("search.result.show.citation", true) ? 1 : 0);
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prop.put("content_showPictures", sb.getConfigBool("search.result.show.pictures", true) ? 1 : 0);
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prop.put("content_showCache", sb.getConfigBool("search.result.show.cache", true) && Cache.has(resultURL.hash()) ? 1 : 0);
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prop.put("content_showProxy", sb.getConfigBool("search.result.show.proxy", true) ? 1 : 0);
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prop.put("content_showHostBrowser", sb.getConfigBool("search.result.show.hostbrowser", true) ? 1 : 0);
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prop.put("content_showTags", sb.getConfigBool("search.result.show.tags", false) ? 1 : 0);
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prop.put("content_authorized", authenticated ? "1" : "0");
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final String urlhash = ASCII.String(result.hash());
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prop.put("content_authorized_bookmark", sb.tables.bookmarks.hasBookmark("admin", urlhash) ? "0" : "1");
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prop.putHTML("content_authorized_bookmark_bookmarklink", "/yacysearch.html?query=" + origQ.replace(' ', '+') + "&Enter=Search&count=" + theSearch.query.itemsPerPage() + "&offset=" + (theSearch.query.neededResults() - theSearch.query.itemsPerPage()) + "&order=" + crypt.simpleEncode(theSearch.query.ranking.toExternalString()) + "&resource=" + resource + "&time=3&bookmarkref=" + urlhash + "&urlmaskfilter=.*");
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prop.put("content_authorized_recommend", (sb.peers.newsPool.getSpecific(NewsPool.OUTGOING_DB, NewsPool.CATEGORY_SURFTIPP_ADD, "url", resultUrlstring) == null) ? "1" : "0");
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prop.putHTML("content_authorized_recommend_deletelink", "/yacysearch.html?query=" + origQ.replace(' ', '+') + "&Enter=Search&count=" + theSearch.query.itemsPerPage() + "&offset=" + (theSearch.query.neededResults() - theSearch.query.itemsPerPage()) + "&order=" + crypt.simpleEncode(theSearch.query.ranking.toExternalString()) + "&resource=" + resource + "&time=3&deleteref=" + urlhash + "&urlmaskfilter=.*");
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prop.putHTML("content_authorized_recommend_recommendlink", "/yacysearch.html?query=" + origQ.replace(' ', '+') + "&Enter=Search&count=" + theSearch.query.itemsPerPage() + "&offset=" + (theSearch.query.neededResults() - theSearch.query.itemsPerPage()) + "&order=" + crypt.simpleEncode(theSearch.query.ranking.toExternalString()) + "&resource=" + resource + "&time=3&recommendref=" + urlhash + "&urlmaskfilter=.*");
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prop.put("content_authorized_urlhash", urlhash);
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final String resulthashString = urlhash;
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prop.putHTML("content_title", result.title());
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prop.putXML("content_title-xml", result.title());
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prop.putJSON("content_title-json", result.title());
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prop.putHTML("content_showPictures_link", resultUrlstring);
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//prop.putHTML("content_link", resultUrlstring);
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// START interaction
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String modifyURL = resultUrlstring;
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if (sb.getConfigBool("proxyURL.useforresults", false)) {
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// check if url is allowed to view
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if (sb.getConfig("proxyURL.rewriteURLs", "all").equals("all")) {
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modifyURL = "./proxy.html?url="+modifyURL;
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}
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// check if url is allowed to view
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if (sb.getConfig("proxyURL.rewriteURLs", "all").equals("domainlist")) {
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try {
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if (sb.crawlStacker.urlInAcceptedDomain(new DigestURI (modifyURL)) == null) {
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modifyURL = "./proxy.html?url="+modifyURL;
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}
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} catch (final MalformedURLException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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if (sb.getConfig("proxyURL.rewriteURLs", "all").equals("yacy")) {
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try {
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if ((new DigestURI (modifyURL).getHost().endsWith(".yacy"))) {
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modifyURL = "./proxy.html?url="+modifyURL;
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}
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} catch (final MalformedURLException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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}
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prop.putHTML("content_link", modifyURL);
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// prop.putHTML("content_value", Interaction.TripleGet(result.urlstring(), "http://virtual.x/hasvalue", "anonymous"));
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// END interaction
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String resultFileName = resultURL.getFileName();
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prop.putHTML("content_target", target);
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if (faviconURL != null && fileType == FileType.HTML) sb.loader.loadIfNotExistBackground(faviconURL, 1024 * 1024 * 10, null, ClientIdentification.yacyIntranetCrawlerAgent);
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prop.putHTML("content_faviconCode", URLLicense.aquireLicense(faviconURL)); // acquire license for favicon url loading
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prop.put("content_urlhash", resulthashString);
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prop.put("content_ranking", result.ranking());
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prop.put("content_showMetadata_urlhash", resulthashString);
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prop.put("content_showCache_link", resultUrlstring);
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prop.put("content_showProxy_link", resultUrlstring);
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prop.put("content_showHostBrowser_link", resultUrlstring);
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prop.put("content_showParser_urlhash", resulthashString);
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prop.put("content_showCitation_urlhash", resulthashString);
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prop.put("content_showTags_urlhash", resulthashString);
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prop.put("content_urlhexhash", Seed.b64Hash2hexHash(resulthashString));
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prop.putHTML("content_urlname", nxTools.shortenURLString(result.urlname(), MAX_URL_LENGTH));
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prop.put("content_showDate_date", GenericFormatter.RFC1123_SHORT_FORMATTER.format(result.modified()));
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prop.put("content_date822", HeaderFramework.formatRFC1123(result.modified()));
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//prop.put("content_ybr", RankingProcess.ybr(result.hash()));
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prop.putHTML("content_size", Integer.toString(result.filesize())); // we don't use putNUM here because that number shall be usable as sorting key. To print the size, use 'sizename'
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prop.putHTML("content_sizename", RSSMessage.sizename(result.filesize()));
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prop.putHTML("content_showSize_sizename", RSSMessage.sizename(result.filesize()));
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prop.putHTML("content_host", resultURL.getHost() == null ? "" : resultURL.getHost());
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prop.putHTML("content_file", resultFileName);
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prop.putHTML("content_path", resultURL.getPath());
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prop.put("content_nl", (item == theSearch.query.offset) ? 0 : 1);
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prop.putHTML("content_publisher", result.publisher());
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prop.putHTML("content_creator", result.creator());// author
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prop.putHTML("content_subject", result.subject());
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final List<String> query = theSearch.query.getQueryGoal().getAllStrings();
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final StringBuilder s = new StringBuilder(query.size() * 20);
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for (final String t: query) {
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s.append('+').append(t);
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}
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final String words = (s.length() > 0) ? s.substring(1) : "";
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prop.putHTML("content_words", words);
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prop.putHTML("content_showParser_words", words);
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prop.putHTML("content_former", origQ);
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prop.putHTML("content_showPictures_former", origQ);
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final TextSnippet snippet = result.textSnippet();
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final String desc = (snippet == null) ? "" : snippet.isMarked() ? snippet.getLineRaw() : snippet.getLineMarked(theSearch.query.getQueryGoal());
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prop.put("content_description", desc);
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prop.putXML("content_description-xml", desc);
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prop.putJSON("content_description-json", desc);
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final HeuristicResult heuristic = theSearch.getHeuristic(result.hash());
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if (heuristic == null) {
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prop.put("content_heuristic", 0);
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} else {
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if (heuristic.redundant) {
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prop.put("content_heuristic", 1);
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} else {
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prop.put("content_heuristic", 2);
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}
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prop.put("content_heuristic_name", heuristic.heuristicName);
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}
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EventTracker.update(EventTracker.EClass.SEARCH, new ProfilingGraph.EventSearch(theSearch.query.id(true), SearchEventType.FINALIZATION, "" + item, 0, 0), false);
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final String ext = MultiProtocolURI.getFileExtension(resultFileName).toLowerCase();
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if (ext.equals("png") || ext.equals("jpg") || ext.equals("gif")) {
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final String license = URLLicense.aquireLicense(resultURL);
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prop.put("content_code", license);
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} else {
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prop.put("content_code", "");
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}
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if (result.lat() == 0.0d || result.lon() == 0.0d) {
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prop.put("content_loc", 0);
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} else {
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prop.put("content_loc", 1);
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prop.put("content_loc_lat", result.lat());
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prop.put("content_loc_lon", result.lon());
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}
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final boolean clustersearch = sb.isRobinsonMode() && sb.getConfig(SwitchboardConstants.CLUSTER_MODE, "").equals(SwitchboardConstants.CLUSTER_MODE_PUBLIC_CLUSTER);
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final boolean indexReceiveGranted =
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sb.getConfigBool(SwitchboardConstants.INDEX_RECEIVE_ALLOW, true)
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|| sb.getConfigBool(SwitchboardConstants.INDEX_RECEIVE_AUTODISABLED, true)
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|| clustersearch;
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boolean p2pmode = sb.peers != null && sb.peers.sizeConnected() > 0 && indexReceiveGranted;
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boolean stealthmode = p2pmode && theSearch.query.isLocal();
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if ((sb.getConfigBool(SwitchboardConstants.HEURISTIC_SEARCHRESULTS, false) ||
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(sb.getConfigBool(SwitchboardConstants.GREEDYLEARNING_ACTIVE, false) && sb.getConfigBool(SwitchboardConstants.GREEDYLEARNING_ENABLED, false))) &&
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!stealthmode) sb.heuristicSearchResults(resultUrlstring);
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theSearch.query.transmitcount = item + 1;
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return prop;
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}
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if (theSearch.query.contentdom == Classification.ContentDomain.IMAGE) {
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// image search; shows thumbnails
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prop.put("content", theSearch.query.contentdom.getCode() + 1); // switch on specific content
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//final MediaSnippet ms = theSearch.result().oneImage(item);
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final ResultEntry ms = theSearch.oneResult(item, timeout);
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if (ms == null) {
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prop.put("content_item", "0");
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} else {
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final String resultUrlstring = ms.url().toNormalform(true);
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final String target = sb.getConfig(resultUrlstring.matches(target_special_pattern) ? SwitchboardConstants.SEARCH_TARGET_SPECIAL : SwitchboardConstants.SEARCH_TARGET_DEFAULT, "_self");
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final String license = URLLicense.aquireLicense(ms.url());
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sb.loader.loadIfNotExistBackground(ms.url(), 1024 * 1024 * 10, null, ClientIdentification.yacyIntranetCrawlerAgent);
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prop.putHTML("content_item_hrefCache", (auth) ? "/ViewImage.png?url=" + resultUrlstring : resultUrlstring);
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prop.putHTML("content_item_href", resultUrlstring);
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prop.putHTML("content_item_target", target);
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prop.put("content_item_code", license);
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prop.putHTML("content_item_name", shorten(ms.title(), MAX_NAME_LENGTH));
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prop.put("content_item_mimetype", "");
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prop.put("content_item_fileSize", 0);
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prop.put("content_item_width", 0);
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prop.put("content_item_height", 0);
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prop.put("content_item_attr", ""/*(ms.attr.equals("-1 x -1")) ? "" : "(" + ms.attr + ")"*/); // attributes, here: original size of image
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prop.put("content_item_urlhash", ASCII.String(ms.url().hash()));
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prop.put("content_item_source", ms.url().toNormalform(true));
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prop.putXML("content_item_source-xml", ms.url().toNormalform(true));
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prop.put("content_item_sourcedom", ms.url().getHost());
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prop.put("content_item_nl", (item == theSearch.query.offset) ? 0 : 1);
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prop.put("content_item", 1);
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}
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theSearch.query.transmitcount = item + 1;
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return prop;
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}
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if ((theSearch.query.contentdom == ContentDomain.AUDIO) ||
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(theSearch.query.contentdom == ContentDomain.VIDEO) ||
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(theSearch.query.contentdom == ContentDomain.APP)) {
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// any other media content
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// generate result object
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final ResultEntry ms = theSearch.oneResult(item, timeout);
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prop.put("content", theSearch.query.contentdom.getCode() + 1); // switch on specific content
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if (ms == null) {
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prop.put("content_item", "0");
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} else {
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final String resultUrlstring = ms.url().toNormalform(true);
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final String target = sb.getConfig(resultUrlstring.matches(target_special_pattern) ? SwitchboardConstants.SEARCH_TARGET_SPECIAL : SwitchboardConstants.SEARCH_TARGET_DEFAULT, "_self");
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prop.putHTML("content_item_href", resultUrlstring);
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prop.putHTML("content_item_hrefshort", nxTools.shortenURLString(resultUrlstring, MAX_URL_LENGTH));
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prop.putHTML("content_item_target", target);
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prop.putHTML("content_item_name", shorten(ms.title(), MAX_NAME_LENGTH));
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prop.put("content_item_col", (item % 2 == 0) ? "0" : "1");
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prop.put("content_item_nl", (item == theSearch.query.offset) ? 0 : 1);
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prop.put("content_item", 1);
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}
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theSearch.query.transmitcount = item + 1;
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return prop;
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}
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return prop;
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}
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private static String shorten(final String s, final int length) {
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final String ret;
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if (s.length() <= length) {
|
|
ret = s;
|
|
} else {
|
|
final int p = s.lastIndexOf('.');
|
|
if (p < 0) {
|
|
ret = s.substring(0, length - SHORTEN_SUFFIX_LENGTH) + SHORTEN_SUFFIX;
|
|
} else {
|
|
assert p >= 0;
|
|
final String ext = s.substring(p + 1);
|
|
if (ext.length() > 4) {
|
|
ret = s.substring(0, length / 2 - 2) + SHORTEN_SUFFIX + s.substring(s.length() - (length / 2 - 2));
|
|
} else {
|
|
ret = s.substring(0, length - ext.length() - SHORTEN_SUFFIX_LENGTH) + SHORTEN_SUFFIX + ext;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
}
|