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3e742d1e34
If remote crawl option is not activated, skip init of remoteCrawlJob to save the resources of queue and ideling thread. Deploy of the remoteCrawlJob deferred on activation of the option.
139 lines
6.0 KiB
Java
139 lines
6.0 KiB
Java
// urls.java
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// (C) 2007 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 22.08.2007 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: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
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// $LastChangedRevision: 1986 $
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// $LastChangedBy: orbiter $
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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.io.IOException;
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import net.yacy.cora.date.GenericFormatter;
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import net.yacy.cora.document.encoding.ASCII;
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import net.yacy.cora.document.id.DigestURL;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.cora.util.ConcurrentLog;
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import net.yacy.crawler.data.NoticedURL;
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import net.yacy.crawler.retrieval.Request;
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import net.yacy.kelondro.data.meta.URIMetadataNode;
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import net.yacy.peers.Protocol;
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import net.yacy.search.Switchboard;
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import net.yacy.server.serverObjects;
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import net.yacy.server.serverSwitch;
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public class urls {
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public static serverObjects respond(@SuppressWarnings("unused") final RequestHeader header, final serverObjects post, final serverSwitch env) {
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final Switchboard sb = (Switchboard) env;
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// insert default values
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final serverObjects prop = new serverObjects();
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prop.put("iam", sb.peers.mySeed().hash);
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prop.put("response", "rejected - insufficient call parameters");
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prop.put("channel_title", "");
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prop.put("channel_description", "");
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prop.put("channel_pubDate", "");
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prop.put("item", "0");
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if ((post == null) || (env == null)) return prop;
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if (!Protocol.authentifyRequest(post, env)) return prop;
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if (post.get("call", "").equals("remotecrawl")) {
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// perform a remote crawl url handover
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final NoticedURL.StackType stackType = NoticedURL.StackType.GLOBAL;
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int maxCount = Math.min(100, post.getInt("count", 10));
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final long maxTime = Math.min(20000, Math.max(1000, post.getInt("time", 10000)));
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final long timeout = System.currentTimeMillis() + maxTime;
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int c = 0;
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Request entry;
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DigestURL referrer;
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while ((maxCount > 0) &&
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(System.currentTimeMillis() < timeout) &&
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(!sb.crawlQueues.noticeURL.isEmpty(stackType))) {
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try {
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entry = sb.crawlQueues.noticeURL.pop(stackType, false, sb.crawler, sb.robots);
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} catch (final IOException e) {
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break;
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}
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if (entry == null) break;
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// find referrer, if there is one
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try {
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referrer = sb.getURL(entry.referrerhash());
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} catch (IOException e) {
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referrer = null;
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ConcurrentLog.logException(e);
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}
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// place url to notice-url db
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if (sb.crawlQueues.delegatedURL != null) sb.crawlQueues.delegatedURL.put(ASCII.String(entry.url().hash()), entry.url());
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// create RSS entry
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prop.put("item_" + c + "_title", "");
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prop.putXML("item_" + c + "_link", entry.url().toNormalform(true));
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prop.putXML("item_" + c + "_referrer", (referrer == null) ? "" : referrer.toNormalform(true));
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prop.putXML("item_" + c + "_description", entry.name());
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prop.put("item_" + c + "_author", "");
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prop.put("item_" + c + "_pubDate", GenericFormatter.SHORT_SECOND_FORMATTER.format(entry.appdate()));
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prop.put("item_" + c + "_guid", entry.url().hash());
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c++;
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maxCount--;
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}
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prop.put("item", c);
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prop.putXML("response", "ok");
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}
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if (post.get("call", "").equals("urlhashlist")) {
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// retrieve a list of urls from the LURL-db by a given list of url hashes
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final String urlhashes = post.get("hashes", "");
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if (urlhashes.length() % 12 != 0) return prop;
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final int count = urlhashes.length() / 12;
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int c = 0;
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URIMetadataNode entry;
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DigestURL referrer;
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for (int i = 0; i < count; i++) {
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entry = sb.index.fulltext().getMetadata(ASCII.getBytes(urlhashes.substring(12 * i, 12 * (i + 1))));
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if (entry == null) continue;
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// find referrer, if there is one
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try {
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referrer = sb.getURL(entry.referrerHash());
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// create RSS entry
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prop.put("item_" + c + "_title", entry.dc_title());
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prop.putXML("item_" + c + "_link", entry.url().toNormalform(true));
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prop.putXML("item_" + c + "_referrer", (referrer == null) ? "" : referrer.toNormalform(true));
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prop.putXML("item_" + c + "_description", entry.dc_title());
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prop.put("item_" + c + "_author", entry.dc_creator());
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prop.put("item_" + c + "_pubDate", GenericFormatter.SHORT_SECOND_FORMATTER.format(entry.moddate()));
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prop.put("item_" + c + "_guid", ASCII.String(entry.hash()));
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c++;
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} catch (IOException e) {
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ConcurrentLog.logException(e);
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}
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}
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prop.put("item", c);
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prop.putXML("response", "ok");
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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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