mirror of
https://github.com/yacy/yacy_search_server.git
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1d8d51075c
- removed the plasma package. The name of that package came from a very early pre-version of YaCy, even before YaCy was named AnomicHTTPProxy. The Proxy project introduced search for cache contents using class files that had been developed during the plasma project. Information from 2002 about plasma can be found here: http://web.archive.org/web/20020802110827/http://anomic.de/AnomicPlasma/index.html We stil have one class that comes mostly unchanged from the plasma project, the Condenser class. But this is now part of the document package and all other classes in the plasma package can be assigned to other packages. - cleaned up the http package: better structure of that class and clean isolation of server and client classes. The old HTCache becomes part of the client sub-package of http. - because the plasmaSwitchboard is now part of the search package all servlets had to be touched to declare a different package source. git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6232 6c8d7289-2bf4-0310-a012-ef5d649a1542
171 lines
7.2 KiB
Java
171 lines
7.2 KiB
Java
// crawlReceipt.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
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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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// 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 crawlOrder.java
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import java.io.IOException;
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import de.anomic.crawler.ZURL;
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import de.anomic.http.metadata.RequestHeader;
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import de.anomic.kelondro.text.metadataPrototype.URLMetadataRow;
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import de.anomic.search.Switchboard;
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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.tools.crypt;
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import de.anomic.yacy.yacyNetwork;
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import de.anomic.yacy.yacySeed;
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import de.anomic.yacy.logging.Log;
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public final class crawlReceipt {
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/*
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* this is used to respond on a remote crawling request
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*/
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public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
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// return variable that accumulates replacements
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final Switchboard sb = (Switchboard) env;
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final serverObjects prop = new serverObjects();
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if ((post == null) || (env == null)) return prop;
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if (!yacyNetwork.authentifyRequest(post, env)) return prop;
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final Log log = sb.getLog();
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//int proxyPrefetchDepth = Integer.parseInt(env.getConfig("proxyPrefetchDepth", "0"));
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//int crawlingDepth = Integer.parseInt(env.getConfig("crawlingDepth", "0"));
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// request values
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final String iam = post.get("iam", ""); // seed hash of requester
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final String youare = post.get("youare", ""); // seed hash of the target peer, needed for network stability
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//String process = post.get("process", ""); // process type
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final String key = post.get("key", ""); // transmission key
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//String receivedUrlhash = post.get("urlhash", ""); // the url hash that has been crawled
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final String result = post.get("result", ""); // the result; either "ok" or "fail"
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final String reason = post.get("reason", ""); // the reason for that result
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//String words = post.get("wordh", ""); // priority word hashes
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final String propStr = crypt.simpleDecode(post.get("lurlEntry", ""), key);
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/*
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the result can have one of the following values:
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negative cases, no retry
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unavailable - the resource is not available (a broken link); not found or interrupted
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exception - an exception occurred
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robot - a robot-file has denied to crawl that resource
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negative cases, retry possible
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rejected - the peer has rejected to load the resource
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dequeue - peer too busy - rejected to crawl
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positive cases with crawling
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fill - the resource was loaded and processed
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update - the resource was already in database but re-loaded and processed
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positive cases without crawling
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known - the resource is already in database, believed to be fresh and not reloaded
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stale - the resource was reloaded but not processed because source had no changes
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*/
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final yacySeed otherPeer = sb.peers.get(iam);
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final String otherPeerName = iam + ":" + ((otherPeer == null) ? "NULL" : (otherPeer.getName() + "/" + otherPeer.getVersion()));
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if ((sb.peers.mySeed() == null) || (!(sb.peers.mySeed().hash.equals(youare)))) {
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// no yacy connection / unknown peers
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prop.put("delay", "3600");
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return prop;
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}
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if (propStr == null) {
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// error with url / wrong key
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prop.put("delay", "3600");
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return prop;
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}
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if ((sb.isRobinsonMode()) && (!sb.isInMyCluster(otherPeer))) {
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// we reject urls that are from outside our cluster
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prop.put("delay", "9999");
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}
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// generating a new loaded URL entry
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final URLMetadataRow entry = URLMetadataRow.importEntry(propStr);
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if (entry == null) {
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log.logWarning("crawlReceipt: RECEIVED wrong RECEIPT (entry null) from peer " + iam + "\n\tURL properties: "+ propStr);
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prop.put("delay", "3600");
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return prop;
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}
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final URLMetadataRow.Components metadata = entry.metadata();
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if (metadata.url() == null) {
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log.logWarning("crawlReceipt: RECEIVED wrong RECEIPT (url null) for hash " + entry.hash() + " from peer " + iam + "\n\tURL properties: "+ propStr);
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prop.put("delay", "3600");
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return prop;
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}
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// check if the entry is in our network domain
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final String urlRejectReason = sb.crawlStacker.urlInAcceptedDomain(metadata.url());
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if (urlRejectReason != null) {
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log.logWarning("crawlReceipt: RECEIVED wrong RECEIPT (" + urlRejectReason + ") for hash " + entry.hash() + " from peer " + iam + "\n\tURL properties: "+ propStr);
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prop.put("delay", "9999");
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return prop;
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}
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if (result.equals("fill")) try {
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// put new entry into database
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sb.indexSegment.urlMetadata().store(entry);
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sb.crawlResults.stack(entry, youare, iam, 1);
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sb.crawlQueues.delegatedURL.remove(entry.hash()); // the delegated work has been done
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log.logInfo("crawlReceipt: RECEIVED RECEIPT from " + otherPeerName + " for URL " + entry.hash() + ":" + metadata.url().toNormalform(false, true));
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// ready for more
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prop.put("delay", "10");
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return prop;
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} catch (final IOException e) {
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e.printStackTrace();
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prop.put("delay", "3600");
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return prop;
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}
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sb.crawlQueues.delegatedURL.remove(entry.hash()); // the delegated work is transformed into an error case
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final ZURL.Entry ee = sb.crawlQueues.errorURL.newEntry(
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entry.toBalancerEntry(iam),
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youare,
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null,
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0,
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result + ":" + reason);
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ee.store();
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sb.crawlQueues.errorURL.push(ee);
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//switchboard.noticeURL.remove(receivedUrlhash);
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prop.put("delay", "3600");
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return prop;
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// return rewrite properties
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}
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}
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