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yacy_search_server/htroot/api/util/getpageinfo_p.java

96 lines
4.0 KiB

import java.io.IOException;
import java.net.MalformedURLException;
import java.util.Set;
import de.anomic.crawler.HTTPLoader;
import de.anomic.document.parser.html.ContentScraper;
import de.anomic.http.httpHeader;
import de.anomic.http.httpRequestHeader;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.yacy.yacyURL;
public class getpageinfo_p {
public static serverObjects respond(final httpRequestHeader header, final serverObjects post, final serverSwitch<?> env) {
final plasmaSwitchboard sb = (plasmaSwitchboard) env;
final serverObjects prop = new serverObjects();
// avoid UNRESOLVED PATTERN
prop.put("title", "");
prop.put("desc", "");
prop.put("lang", "");
prop.put("robots-allowed", "3"); //unknown
prop.put("sitemap", "");
prop.put("favicon","");
// default actions
String actions="title,robots";
if(post!=null && post.containsKey("url")){
if(post.containsKey("actions"))
actions=post.get("actions");
String url=post.get("url");
if(url.toLowerCase().startsWith("ftp://")){
prop.put("robots-allowed", "1");
prop.putXML("title", "FTP: "+url);
return prop;
} else if (!(url.toLowerCase().startsWith("http://") || url.toLowerCase().startsWith("https://"))) {
url = "http://" + url;
}
if (actions.indexOf("title")>=0) {
try {
final yacyURL u = new yacyURL(url, null);
final httpRequestHeader reqHeader = new httpRequestHeader();
reqHeader.put(httpHeader.USER_AGENT, HTTPLoader.yacyUserAgent); // do not set the crawler user agent, because this page was loaded by manual entering of the url
final ContentScraper scraper = ContentScraper.parseResource(u, reqHeader);
// put the document title
prop.putXML("title", scraper.getTitle());
// put the favicon that belongs to the document
prop.put("favicon", (scraper.getFavicon()==null) ? "" : scraper.getFavicon().toString());
// put keywords
final String list[]=scraper.getKeywords();
int count = 0;
for(int i=0;i<list.length;i++){
String tag = list[i];
if (!tag.equals("")) {
prop.putXML("tags_"+count+"_tag", tag);
count++;
}
}
prop.put("tags", count);
// put description
prop.putXML("desc", scraper.getDescription());
// put language
Set<String> languages = scraper.getContentLanguages();
prop.putXML("lang", (languages == null) ? "unknown" : languages.iterator().next());
} catch (final MalformedURLException e) { /* ignore this */
} catch (final IOException e) { /* ignore this */
}
}
if(actions.indexOf("robots")>=0){
try {
final yacyURL theURL = new yacyURL(url, null);
// determine if crawling of the current URL is allowed
prop.put("robots-allowed", sb.robots.isDisallowed(theURL) ? "0" : "1");
// get the sitemap URL of the domain
final yacyURL sitemapURL = sb.robots.getSitemapURL(theURL);
prop.putXML("sitemap", (sitemapURL==null)?"":sitemapURL.toString());
} catch (final MalformedURLException e) {}
}
}
// return rewrite properties
return prop;
}
}