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134 lines
5.8 KiB
134 lines
5.8 KiB
// /xml/util/gettitle_p.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@yacy.net
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004, 2005
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//
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// last major change: 29.12.2005
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// this file is contributed by Alexander Schier
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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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// You must compile this file with
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// javac -classpath .:../classes IndexCreate_p.java
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// if the shell's current path is HTROOT
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package xml.util;
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import java.io.IOException;
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import java.io.Writer;
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import java.net.MalformedURLException;
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import java.util.Set;
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import de.anomic.crawler.HTTPLoader;
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import de.anomic.htmlFilter.htmlFilterContentScraper;
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import de.anomic.htmlFilter.htmlFilterWriter;
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import de.anomic.http.HttpClient;
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import de.anomic.http.httpRequestHeader;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.server.serverFileUtils;
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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.yacyURL;
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public class getpageinfo_p {
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public static serverObjects respond(final httpRequestHeader header, final serverObjects post, final serverSwitch<?> env) {
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final plasmaSwitchboard sb = (plasmaSwitchboard) env;
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final serverObjects prop = new serverObjects();
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// avoid UNRESOLVED PATTERN
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prop.put("title", "");
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prop.put("desc", "");
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prop.put("lang", "");
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prop.put("robots-allowed", "3"); //unknown
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prop.put("sitemap", "");
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prop.put("favicon","");
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// default actions
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String actions="title,robots";
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if(post!=null && post.containsKey("url")){
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if(post.containsKey("actions"))
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actions=post.get("actions");
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String url=post.get("url");
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if(url.toLowerCase().startsWith("ftp://")){
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prop.put("robots-allowed", "1");
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prop.putXML("title", "FTP: "+url);
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return prop;
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} else if (!(url.toLowerCase().startsWith("http://") || url.toLowerCase().startsWith("https://"))) {
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url = "http://" + url;
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}
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if (actions.indexOf("title")>=0) {
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try {
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final yacyURL u = new yacyURL(url, null);
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final httpRequestHeader reqHeader = new httpRequestHeader();
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reqHeader.put(httpRequestHeader.USER_AGENT, HTTPLoader.yacyUserAgent); // do not set the crawler user agent, because this page was loaded by manual entering of the url
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final byte[] r = HttpClient.wget(u.toString(), reqHeader, 5000);
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if (r == null) return prop;
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final String contentString=new String(r);
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final htmlFilterContentScraper scraper = new htmlFilterContentScraper(u);
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//OutputStream os = new htmlFilterOutputStream(null, scraper, null, false);
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final Writer writer = new htmlFilterWriter(null,null,scraper,null,false);
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serverFileUtils.copy(contentString,writer);
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writer.close();
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// put the document title
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prop.putXML("title", scraper.getTitle());
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// put the favicon that belongs to the document
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prop.put("favicon", (scraper.getFavicon()==null) ? "" : scraper.getFavicon().toString());
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// put keywords
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final String list[]=scraper.getKeywords();
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int count = 0;
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for(int i=0;i<list.length;i++){
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String tag = list[i];
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if (!tag.equals("")) {
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prop.putXML("tags_"+count+"_tag", tag);
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count++;
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}
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}
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prop.put("tags", count);
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// put description
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prop.putXML("desc", scraper.getDescription());
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// put language
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Set<String> languages = scraper.getContentLanguages();
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prop.putXML("lang", (languages == null) ? "unknown" : languages.iterator().next());
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} catch (final MalformedURLException e) { /* ignore this */
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} catch (final IOException e) { /* ignore this */
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}
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}
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if(actions.indexOf("robots")>=0){
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try {
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final yacyURL theURL = new yacyURL(url, null);
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// determine if crawling of the current URL is allowed
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prop.put("robots-allowed", sb.robots.isDisallowed(theURL) ? "0" : "1");
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// get the sitemap URL of the domain
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final yacyURL sitemapURL = sb.robots.getSitemapURL(theURL);
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prop.putXML("sitemap", (sitemapURL==null)?"":sitemapURL.toString());
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} catch (final MalformedURLException e) {}
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}
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}
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// return rewrite properties
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return prop;
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}
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}
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