// transferURL.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, 2005 // // $LastChangedDate$ // $LastChangedRevision$ // $LastChangedBy$ // // 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 transferRWI.java import java.io.IOException; import java.text.ParseException; import de.anomic.http.httpHeader; import de.anomic.index.indexReferenceBlacklist; import de.anomic.index.indexURLReference; import de.anomic.plasma.plasmaSwitchboard; import de.anomic.server.serverCore; import de.anomic.server.serverObjects; import de.anomic.server.serverSwitch; import de.anomic.server.serverDate; import de.anomic.xml.RSSFeed; import de.anomic.xml.RSSMessage; import de.anomic.yacy.yacyCore; import de.anomic.yacy.yacyNetwork; import de.anomic.yacy.yacySeed; public final class transferURL { public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) throws InterruptedException { long start = System.currentTimeMillis(); long freshdate = 0; try {freshdate = serverDate.parseShortDay("20061101").getTime();} catch (ParseException e1) {} // return variable that accumulates replacements final plasmaSwitchboard sb = (plasmaSwitchboard) env; final serverObjects prop = new serverObjects(); if ((post == null) || (env == null)) return prop; if (!yacyNetwork.authentifyRequest(post, env)) return prop; // request values final String iam = post.get("iam", ""); // seed hash of requester final String youare = post.get("youare", ""); // seed hash of the target peer, needed for network stability // final String key = post.get("key", ""); // transmission key final int urlc = post.getInt("urlc", 0); // number of transported urls final boolean granted = sb.getConfig("allowReceiveIndex", "false").equals("true"); final boolean blockBlacklist = sb.getConfig("indexReceiveBlockBlacklist", "false").equals("true"); // response values String result = ""; String doublevalues = "0"; final yacySeed otherPeer = sb.wordIndex.seedDB.get(iam); final String otherPeerName = iam + ":" + ((otherPeer == null) ? "NULL" : (otherPeer.getName() + "/" + otherPeer.getVersion())); if ((youare == null) || (!youare.equals(sb.wordIndex.seedDB.mySeed().hash))) { sb.getLog().logInfo("Rejecting URLs from peer " + otherPeerName + ". Wrong target. Wanted peer=" + youare + ", iam=" + sb.wordIndex.seedDB.mySeed().hash); result = "wrong_target"; } else if ((!granted) || (sb.isRobinsonMode())) { sb.getLog().logInfo("Rejecting URLs from peer " + otherPeerName + ". Not granted."); result = "error_not_granted"; } else { int received = 0; int blocked = 0; final int sizeBefore = sb.wordIndex.countURL(); // read the urls from the other properties and store String urls; indexURLReference lEntry; for (int i = 0; i < urlc; i++) { serverCore.checkInterruption(); // read new lurl-entry urls = (String) post.get("url" + i); if (urls == null) { yacyCore.log.logFine("transferURL: got null URL-string from peer " + otherPeerName); blocked++; continue; } // parse new lurl-entry lEntry = indexURLReference.importEntry(urls); if (lEntry == null) { yacyCore.log.logWarning("transferURL: received invalid URL (entry null) from peer " + otherPeerName + "\n\tURL Property: " + urls); blocked++; continue; } // check if entry is well-formed indexURLReference.Components comp = lEntry.comp(); if (comp.url() == null) { yacyCore.log.logWarning("transferURL: received invalid URL from peer " + otherPeerName + "\n\tURL Property: " + urls); blocked++; continue; } // check whether entry is too old if (lEntry.freshdate().getTime() <= freshdate) { yacyCore.log.logFine("transerURL: received too old URL from peer " + otherPeerName + ": " + lEntry.freshdate()); blocked++; continue; } // check if the entry is blacklisted if ((blockBlacklist) && (plasmaSwitchboard.urlBlacklist.isListed(indexReferenceBlacklist.BLACKLIST_DHT, comp.url()))) { yacyCore.log.logFine("transferURL: blocked blacklisted URL '" + comp.url().toNormalform(false, true) + "' from peer " + otherPeerName); lEntry = null; blocked++; continue; } // check if the entry is in our network domain String urlRejectReason = sb.acceptURL(comp.url()); if (urlRejectReason != null) { yacyCore.log.logFine("transferURL: blocked URL '" + comp.url() + "' (" + urlRejectReason + ") from peer " + otherPeerName); lEntry = null; blocked++; continue; } // write entry to database try { sb.wordIndex.putURL(lEntry); sb.crawlResults.stack(lEntry, iam, iam, 3); yacyCore.log.logFine("transferURL: received URL '" + comp.url().toNormalform(false, true) + "' from peer " + otherPeerName); received++; } catch (IOException e) { e.printStackTrace(); } } sb.wordIndex.seedDB.mySeed().incRU(received); // return rewrite properties final int more = sb.wordIndex.countURL() - sizeBefore; doublevalues = Integer.toString(received - more); sb.getLog().logInfo("Received " + received + " URLs from peer " + otherPeerName + " in " + (System.currentTimeMillis() - start) + " ms, blocked " + blocked + " URLs"); RSSFeed.channels(RSSFeed.INDEXRECEIVE).addMessage(new RSSMessage("Received " + received + " URLs from peer " + otherPeerName + ", blocked " + blocked, "", "")); if ((received - more) > 0) sb.getLog().logSevere("Received " + doublevalues + " double URLs from peer " + otherPeerName); result = "ok"; } prop.put("double", doublevalues); prop.put("result", result); return prop; } }