// hello.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 hello.java // if the shell's current path is HTROOT import java.util.Date; import java.util.Iterator; import java.util.Map; import de.anomic.http.httpHeader; import de.anomic.plasma.plasmaSwitchboard; import de.anomic.server.serverCore; import de.anomic.server.serverObjects; import de.anomic.server.serverSwitch; import de.anomic.yacy.yacyClient; import de.anomic.yacy.yacyCore; import de.anomic.yacy.yacySeed; import de.anomic.yacy.yacyVersion; public final class hello { public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch ss) throws InterruptedException { if (post == null || ss == null || yacyCore.seedDB == null || yacyCore.seedDB.mySeed == null) { return null; } plasmaSwitchboard sb = (plasmaSwitchboard) ss; // return variable that accumulates replacements final serverObjects prop = new serverObjects(); if (prop == null) { return null; } // final String iam = (String) post.get("iam", ""); // complete seed of the requesting peer // final String pattern = (String) post.get("pattern", ""); // // final String mytime = (String) post.get(MYTIME, ""); // final String key = post.get("key", ""); // transmission key for response final String seed = post.get("seed", ""); final String countStr = post.get("count", "0"); int count = 0; try {count = (countStr == null) ? 0 : Integer.parseInt(countStr);} catch (NumberFormatException e) {count = 0;} // final Date remoteTime = yacyCore.parseUniversalDate((String) post.get(MYTIME)); // read remote time final yacySeed remoteSeed = yacySeed.genRemoteSeed(seed, key, false); // System.out.println("YACYHELLO: REMOTESEED=" + ((remoteSeed == null) ? "NULL" : remoteSeed.toString())); if (remoteSeed == null) { return null; } // final String properTest = remoteSeed.isProper(); // The remote peer might not know its IP yet, so don't abort if the IP check fails // if ((properTest != null) && (! properTest.substring(0,1).equals("IP"))) { return null; } // we easily know the caller's IP: final String clientip = (String) header.get("CLIENTIP", ""); // read an artificial header addendum final String userAgent = (String) header.get(httpHeader.USER_AGENT, ""); final String reportedip = remoteSeed.get(yacySeed.IP, ""); final String reportedPeerType = remoteSeed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_JUNIOR); final float clientversion = remoteSeed.getVersion(); if ((sb.isRobinsonMode()) && (!sb.isPublicRobinson())) { // if we are a robinson cluster, answer only if this client is known by our network definition return prop; } int urls = -1; remoteSeed.setAlternativeAddress((String) sb.clusterhashes.get(remoteSeed.hash)); // if the remote client has reported its own IP address and the client supports // the port forwarding feature (if client version >= 0.383) then we try to // connect to the reported IP address first if (reportedip.length() > 0 && !clientip.equals(reportedip) && clientversion >= yacyVersion.YACY_SUPPORTS_PORT_FORWARDING) { serverCore.checkInterruption(); // try first the reportedip, since this may be a connect from a port-forwarding host prop.putASIS("yourip", reportedip); remoteSeed.put(yacySeed.IP, reportedip); urls = yacyClient.queryUrlCount(remoteSeed); } // if the previous attempt (using the reported ip address) was not successful, try the ip where // the request came from if (urls < 0) { boolean isNotLocal = true; // we are only allowed to connect to the client IP address if it's not our own address if(serverCore.portForwardingEnabled || serverCore.useStaticIP) isNotLocal = serverCore.isNotLocal(clientip); if(isNotLocal) { serverCore.checkInterruption(); prop.putASIS("yourip", clientip); remoteSeed.put(yacySeed.IP, clientip); urls = yacyClient.queryUrlCount(remoteSeed); } } // System.out.println("YACYHELLO: YOUR IP=" + clientip); // set lastseen value (we have seen that peer, it contacted us!) remoteSeed.setLastSeenUTC(); // assign status if (urls >= 0) { if (remoteSeed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_SENIOR) == null) { prop.putASIS(yacySeed.YOURTYPE, yacySeed.PEERTYPE_SENIOR); remoteSeed.put(yacySeed.PEERTYPE, yacySeed.PEERTYPE_SENIOR); } else if (remoteSeed.get(yacySeed.PEERTYPE, yacySeed.PEERTYPE_PRINCIPAL).equals(yacySeed.PEERTYPE_PRINCIPAL)) { prop.putASIS(yacySeed.YOURTYPE, yacySeed.PEERTYPE_PRINCIPAL); } else { prop.putASIS(yacySeed.YOURTYPE, yacySeed.PEERTYPE_SENIOR); remoteSeed.put(yacySeed.PEERTYPE, yacySeed.PEERTYPE_SENIOR); } // connect the seed yacyCore.peerActions.peerArrival(remoteSeed, true); } else { prop.putASIS(yacySeed.YOURTYPE, yacySeed.PEERTYPE_JUNIOR); yacyCore.peerActions.juniorConnects++; // update statistics remoteSeed.put(yacySeed.PEERTYPE, yacySeed.PEERTYPE_JUNIOR); yacyCore.log.logInfo("hello: responded remote junior peer '" + remoteSeed.getName() + "' from " + reportedip); // no connection here, instead store junior in connection cache if ((remoteSeed.hash != null) && (remoteSeed.isProper() == null)) { yacyCore.peerActions.peerPing(remoteSeed); } } yacyCore.peerActions.setUserAgent(clientip, userAgent); if (!((String)prop.get(yacySeed.YOURTYPE)).equals(reportedPeerType)) { yacyCore.log.logInfo("hello: changing remote peer '" + remoteSeed.getName() + "' [" + reportedip + "] peerType from '" + reportedPeerType + "' to '" + prop.get(yacySeed.YOURTYPE) + "'."); } serverCore.checkInterruption(); final StringBuffer seeds = new StringBuffer(768); // attach some more seeds, as requested if ((yacyCore.seedDB != null) && (yacyCore.seedDB.sizeConnected() > 0)) { if (count > yacyCore.seedDB.sizeConnected()) { count = yacyCore.seedDB.sizeConnected(); } if (count > 100) { count = 100; } // latest seeds final Map ySeeds = yacyCore.seedDB.seedsByAge(true, count); // peerhash/yacySeed relation // attach also my own seed seeds.append("seed0=").append(yacyCore.seedDB.mySeed.genSeedStr(key)).append(serverCore.crlfString); count = 1; // attach other seeds if (ySeeds != null) { seeds.ensureCapacity((ySeeds.size() + 1) * 768); Iterator si = ySeeds.values().iterator(); yacySeed s; while (si.hasNext()) { s = (yacySeed) si.next(); if ((s != null) && (s.isProper() == null)) { seeds.append("seed").append(count).append('=').append(s.genSeedStr(key)).append(serverCore.crlfString); count++; } } } } else { // attach also my own seed seeds.append("seed0=").append(yacyCore.seedDB.mySeed.genSeedStr(key)).append(serverCore.crlfString); } prop.putASIS("mytime", yacyCore.universalDateShortString(new Date())); prop.putASIS("seedlist", seeds.toString()); // return rewrite properties return prop; } }