You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
189 lines
8.2 KiB
189 lines
8.2 KiB
// crawlReceipt.java
|
|
// -----------------------
|
|
// part of the AnomicHTTPD caching proxy
|
|
// (C) by Michael Peter Christen; mc@anomic.de
|
|
// first published on http://www.anomic.de
|
|
// Frankfurt, Germany, 2004
|
|
//
|
|
// $LastChangedDate$
|
|
// $LastChangedRevision$
|
|
// $LastChangedBy$
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation; either version 2 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
//
|
|
// Using this software in any meaning (reading, learning, copying, compiling,
|
|
// running) means that you agree that the Author(s) is (are) not responsible
|
|
// for cost, loss of data or any harm that may be caused directly or indirectly
|
|
// by usage of this softare or this documentation. The usage of this software
|
|
// is on your own risk. The installation and usage (starting/running) of this
|
|
// software may allow other people or application to access your computer and
|
|
// any attached devices and is highly dependent on the configuration of the
|
|
// software which must be done by the user of the software; the author(s) is
|
|
// (are) also not responsible for proper configuration and usage of the
|
|
// software, even if provoked by documentation provided together with
|
|
// the software.
|
|
//
|
|
// Any changes to this file according to the GPL as documented in the file
|
|
// gpl.txt aside this file in the shipment you received can be done to the
|
|
// lines that follows this copyright notice here, but changes must not be
|
|
// done inside the copyright notive above. A re-distribution must contain
|
|
// the intact and unchanged copyright notice.
|
|
// Contributions and changes to the program code must be marked as such.
|
|
|
|
// You must compile this file with
|
|
// javac -classpath .:../classes crawlOrder.java
|
|
|
|
|
|
import java.io.IOException;
|
|
|
|
import de.anomic.http.httpHeader;
|
|
import de.anomic.index.indexURLEntry;
|
|
import de.anomic.plasma.plasmaCrawlZURL;
|
|
import de.anomic.plasma.plasmaSwitchboard;
|
|
import de.anomic.server.serverObjects;
|
|
import de.anomic.server.serverSwitch;
|
|
import de.anomic.server.logging.serverLog;
|
|
import de.anomic.tools.crypt;
|
|
import de.anomic.yacy.yacyCore;
|
|
import de.anomic.yacy.yacyNetwork;
|
|
import de.anomic.yacy.yacySeed;
|
|
|
|
public final class crawlReceipt {
|
|
|
|
/*
|
|
* this is used to respond on a remote crawling request
|
|
*/
|
|
public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
|
|
// return variable that accumulates replacements
|
|
final serverObjects prop = new serverObjects();
|
|
// defaults
|
|
prop.put("delay", "3600");
|
|
|
|
if (post == null || env == null || !yacyNetwork.authentifyRequest(post, env)) {
|
|
return prop;
|
|
}
|
|
|
|
// seed hash of requester
|
|
String ohash = post.get("iam", "");
|
|
if (ohash == null || ohash.length() == 0 ) return prop;
|
|
yacySeed oseed = yacyCore.seedDB.get(ohash);
|
|
if (oseed == null) return prop;
|
|
oseed.setFlagDirectConnect(true);
|
|
oseed.setLastSeenUTC();
|
|
|
|
final plasmaSwitchboard sb = (plasmaSwitchboard) env;
|
|
serverLog log = sb.getLog();
|
|
|
|
//int proxyPrefetchDepth = Integer.parseInt(env.getConfig("proxyPrefetchDepth", "0"));
|
|
//int crawlingDepth = Integer.parseInt(env.getConfig("crawlingDepth", "0"));
|
|
|
|
// request values
|
|
String youare = post.get("youare", ""); // seed hash of the target peer, needed for network stability
|
|
//String process = post.get("process", ""); // process type
|
|
String key = post.get("key", ""); // transmission key
|
|
//String receivedUrlhash = post.get("urlhash", ""); // the url hash that has been crawled
|
|
String result = post.get("result", ""); // the result; either "ok" or "fail"
|
|
String reason = post.get("reason", ""); // the reason for that result
|
|
//String words = post.get("wordh", ""); // priority word hashes
|
|
String propStr = crypt.simpleDecode(post.get("lurlEntry", ""), key);
|
|
|
|
/*
|
|
the result can have one of the following values:
|
|
negative cases, no retry
|
|
unavailable - the resource is not available (a broken link); not found or interrupted
|
|
exception - an exception occurred
|
|
robot - a robot-file has denied to crawl that resource
|
|
|
|
negative cases, retry possible
|
|
rejected - the peer has rejected to load the resource
|
|
dequeue - peer too busy - rejected to crawl
|
|
|
|
positive cases with crawling
|
|
fill - the resource was loaded and processed
|
|
update - the resource was already in database but re-loaded and processed
|
|
|
|
positive cases without crawling
|
|
known - the resource is already in database, believed to be fresh and not reloaded
|
|
stale - the resource was reloaded but not processed because source had no changes
|
|
|
|
*/
|
|
|
|
|
|
|
|
if ((yacyCore.seedDB.mySeed() == null) || (!(yacyCore.seedDB.mySeed().hash.equals(youare)))) {
|
|
// no yacy connection / unknown peers
|
|
return prop;
|
|
}
|
|
|
|
if (propStr == null) {
|
|
// error with url / wrong key
|
|
return prop;
|
|
}
|
|
|
|
if ((sb.isRobinsonMode()) && (!sb.isInMyCluster(oseed))) {
|
|
// we reject urls that are from outside our cluster
|
|
prop.put("delay", "9999");
|
|
return prop; // ???
|
|
}
|
|
|
|
// generating a new loaded URL entry
|
|
indexURLEntry entry = sb.wordIndex.loadedURL.newEntry(propStr);
|
|
if (entry == null) {
|
|
log.logWarning("crawlReceipt: RECEIVED wrong RECEIPT (entry null) from peer " + ohash + "\n\tURL properties: "+ propStr);
|
|
return prop;
|
|
}
|
|
|
|
indexURLEntry.Components comp = entry.comp();
|
|
if (comp.url() == null) {
|
|
log.logWarning("crawlReceipt: RECEIVED wrong RECEIPT (url null) for hash " + entry.hash() + " from peer " + ohash + "\n\tURL properties: "+ propStr);
|
|
return prop;
|
|
}
|
|
|
|
// check if the entry is in our network domain
|
|
if (!sb.acceptURL(comp.url())) {
|
|
log.logWarning("crawlReceipt: RECEIVED wrong RECEIPT (url outside of our domain) for hash " + entry.hash() + " from peer " + ohash + "\n\tURL properties: "+ propStr);
|
|
prop.put("delay", "9999");
|
|
return prop;
|
|
}
|
|
|
|
if (result.equals("fill")) try {
|
|
// put new entry into database
|
|
sb.wordIndex.loadedURL.store(entry);
|
|
sb.wordIndex.loadedURL.stack(entry, youare, ohash, 1);
|
|
sb.crawlQueues.delegatedURL.remove(entry.hash()); // the delegated work has been done
|
|
final String otherPeerName = ohash + ":" + oseed.getName() + "/" + oseed.getVersion();
|
|
log.logInfo("crawlReceipt: RECEIVED RECEIPT from " + otherPeerName + " for URL " + entry.hash() + ":" + comp.url().toNormalform(false, true));
|
|
|
|
// ready for more
|
|
prop.put("delay", "10");
|
|
return prop;
|
|
} catch (IOException e) {
|
|
e.printStackTrace();
|
|
return prop;
|
|
}
|
|
|
|
sb.crawlQueues.delegatedURL.remove(entry.hash()); // the delegated work is transformed into an error case
|
|
plasmaCrawlZURL.Entry ee = sb.crawlQueues.errorURL.newEntry(entry.toBalancerEntry(), youare, null, 0, result + ":" + reason);
|
|
ee.store();
|
|
sb.crawlQueues.errorURL.push(ee);
|
|
//switchboard.noticeURL.remove(receivedUrlhash);
|
|
return prop;
|
|
|
|
// return rewrite properties
|
|
|
|
}
|
|
|
|
}
|