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yacy_search_server/htroot/yacy/list.java

143 lines
6.3 KiB

// list.java
// -----------------------
// part of YaCy
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2004
//
// This File is contributed by Alexander Schier
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
// 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 list.java
// if the shell's current path is HTROOT
// contains contributions by [FB] to support listing URLs for URL Fetcher
import java.io.File;
import de.anomic.data.URLFetcherStack;
import de.anomic.data.listManager;
import de.anomic.data.wikiCode;
import de.anomic.http.httpHeader;
import de.anomic.net.URL;
import de.anomic.server.serverCore;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.server.logging.serverLog;
import de.anomic.yacy.yacyCore;
import de.anomic.yacy.yacySeed;
public final class list {
public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch ss) {
if (post == null || ss == null)
throw new NullPointerException("post: " + post + ", sb: " + ss);
// return variable that accumulates replacements
final serverObjects prop = new serverObjects();
final String col = post.get("col", "");
final File listsPath = new File(ss.getRootPath(),ss.getConfig("listsPath", "DATA/LISTS"));
String otherPeerName = null;
if (post.containsKey("iam")) {
yacySeed bla = yacyCore.seedDB.get(post.get("iam", ""));
if (bla != null) otherPeerName = bla.getName();
}
if (otherPeerName == null) otherPeerName = (String)header.get(httpHeader.CONNECTION_PROP_CLIENTIP);
if (col.equals("black")) {
final StringBuffer out = new StringBuffer();
final String filenames=ss.getConfig("BlackLists.Shared", "");
final String[] filenamesarray = filenames.split(",");
if(filenamesarray.length > 0){
for(int i = 0;i < filenamesarray.length; i++){
String filename = filenamesarray[i];
File fileObj = new File(listsPath,filename);
out.append(listManager.getListString(fileObj, false))
.append(serverCore.crlfString);
}
} // if filenamesarray.length > 0
prop.put("list",out);
}
// start contrib by [FB]
else if (col.length() == 0 && post.get("list", "").equals("queueUrls")) {
final URLFetcherStack db = CrawlURLFetchStack_p.getURLFetcherStack(ss);
final String display = post.get("display", "list");
if (display.equals("list")) {
// list urls from remote crawler queue for other peers
final int count = Math.min(post.getInt("count", 50), CrawlURLFetchStack_p.maxURLsPerFetch);
if (count > 0 && db.size() > 0) {
final StringBuffer sb = new StringBuffer();
URL url;
int cnt = 0;
for (int i=0; i<count; i++) {
if ((url = db.pop()) == null) continue;
sb.append(wikiCode.deReplaceHTMLEntities(url.toNormalform())).append("\n");
cnt++;
}
prop.put("list", sb);
CrawlURLFetchStack_p.fetchMap.put(
otherPeerName,
new Integer(((CrawlURLFetchStack_p.fetchMap.get(otherPeerName) == null)
? 0
: ((Integer)CrawlURLFetchStack_p.fetchMap.get(otherPeerName)).intValue()) + cnt));
serverLog.logInfo("URLFETCHER", "sent " + cnt + " URLs to " + otherPeerName);
} else {
prop.put("list", "");
serverLog.logInfo("URLFETCHER", "couldn't satisfy URL request from " + otherPeerName + ": stack is empty");
}
} else if (display.equals("count")) {
prop.put("list", db.size());
}
// end contrib by [FB]
} else {
prop.putASIS("list","");
}
return prop;
}
}