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yacy_search_server/htroot/sharedBlacklist_p.java
fuchsi 5b0c1449e1 various fixes and cleanups for blacklist handling: 
1. avoid adding duplicate file name entries in config properties for lists, 
2. correctly merge all path masks from all list files for the same host masks,
3. rewrite helper methods standard java methods for Collection transformations,
4. merged various methods with identical functionality for different Collection implementations into one,
5. minor refactoring to improve code readability.

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4087 6c8d7289-2bf4-0310-a012-ef5d649a1542
2007-09-10 06:20:27 +00:00

266 lines
13 KiB
Java
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//sharedBlacklist_p.java
//-----------------------
//part of the AnomicHTTPProxy
//(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 Blacklist_p.java
//if the shell's current path is HTROOT
import java.io.File;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import de.anomic.data.listManager;
import de.anomic.http.httpHeader;
import de.anomic.http.httpc;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.plasma.urlPattern.abstractURLPattern;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
import de.anomic.tools.nxTools;
import de.anomic.yacy.yacyCore;
import de.anomic.yacy.yacySeed;
import de.anomic.yacy.yacyURL;
public class sharedBlacklist_p {
public static final int STATUS_NONE = 0;
public static final int STATUS_ENTRIES_ADDED = 1;
public static final int STATUS_FILE_ERROR = 2;
public static final int STATUS_PEER_UNKNOWN = 3;
public static final int STATUS_URL_PROBLEM = 4;
public static final int STATUS_WRONG_INVOCATION = 5;
public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
// return variable that accumulates replacements
serverObjects prop = new serverObjects();
plasmaSwitchboard switchboard = (plasmaSwitchboard) env;
// getting the name of the destination blacklist
String selectedBlacklistName = "";
if( post != null && post.containsKey("currentBlacklist") ){
selectedBlacklistName = (String)post.get("currentBlacklist");
}else{
selectedBlacklistName = "shared.black";
}
prop.put("currentBlacklist", selectedBlacklistName);
prop.put("page_target", selectedBlacklistName);
if (post != null) {
ArrayList otherBlacklist = null;
if (post.containsKey("hash")) {
/* ======================================================
* Import blacklist from other peer
* ====================================================== */
// getting the source peer hash
String Hash = (String) post.get("hash");
// generate the download URL
String downloadURL = null;
if( yacyCore.seedDB != null ){ //no nullpointer error..
yacySeed seed = yacyCore.seedDB.getConnected(Hash);
if (seed != null) {
String IP = seed.get(yacySeed.IP, "127.0.0.1");
String Port = seed.get(yacySeed.PORT, "8080");
String peerName = seed.get(yacySeed.NAME, "<" + IP + ":" + Port + ">");
prop.put("page_source", peerName);
downloadURL = "http://" + IP + ":" + Port + "/yacy/list.html?col=black";
} else {
prop.put("status", STATUS_PEER_UNKNOWN);//YaCy-Peer not found
prop.put("page", 1);
}
} else {
prop.put("status", STATUS_PEER_UNKNOWN);//YaCy-Peer not found
prop.put("page", 1);
}
if (downloadURL != null) {
// download the blacklist
try {
httpHeader reqHeader = new httpHeader();
reqHeader.put(httpHeader.PRAGMA,"no-cache");
reqHeader.put(httpHeader.CACHE_CONTROL,"no-cache");
// get List
yacyURL u = new yacyURL(downloadURL, null);
otherBlacklist = nxTools.strings(httpc.wget(u, u.getHost(), 12000, null, null, switchboard.remoteProxyConfig,reqHeader, null), "UTF-8");
} catch (Exception e) {
prop.put("status", STATUS_PEER_UNKNOWN);
prop.put("page", 1);
}
}
} else if (post.containsKey("url")) {
/* ======================================================
* Download the blacklist from URL
* ====================================================== */
String downloadURL = (String)post.get("url");
prop.put("page_source", downloadURL);
try {
yacyURL u = new yacyURL(downloadURL, null);
otherBlacklist = nxTools.strings(httpc.wget(u, u.getHost(), 6000, null, null, switchboard.remoteProxyConfig, null, null), "UTF-8"); //get List
} catch (Exception e) {
prop.put("status", STATUS_URL_PROBLEM);
prop.put("status_address",downloadURL);
prop.put("page", 1);
}
} else if (post.containsKey("file")) {
/* ======================================================
* Import the blacklist from file
* ====================================================== */
String sourceFileName = (String)post.get("file");
prop.put("page_source", sourceFileName);
File sourceFile = new File(listManager.listsPath, sourceFileName);
if (!sourceFile.exists() || !sourceFile.canRead() || !sourceFile.isFile()) {
prop.put("status", STATUS_FILE_ERROR);
prop.put("page", 1);
} else {
otherBlacklist = listManager.getListArray(sourceFile);
}
} else if (post.containsKey("add")) {
/* ======================================================
* Add loaded items into blacklist file
* ====================================================== */
prop.put("page", 1); //result page
prop.put("status", STATUS_ENTRIES_ADDED); //list of added Entries
int count = 0;//couter of added entries
PrintWriter pw = null;
try {
// open the blacklist file
pw = new PrintWriter(new FileWriter(new File(listManager.listsPath, selectedBlacklistName), true));
// loop through the received entry list
int num = Integer.parseInt( (String)post.get("num") );
for(int i=0;i < num; i++){
if( post.containsKey("item" + i) ){
String newItem = (String)post.get("item" + i);
//This should not be needed...
if ( newItem.startsWith("http://") ){
newItem = newItem.substring(7);
}
// separate the newItem into host and path
int pos = newItem.indexOf("/");
if (pos < 0) {
// add default empty path pattern
pos = newItem.length();
newItem = newItem + "/.*";
}
// append the item to the file
pw.println(newItem);
count++;
if (plasmaSwitchboard.urlBlacklist != null) {
String supportedBlacklistTypesStr = abstractURLPattern.BLACKLIST_TYPES_STRING;
String[] supportedBlacklistTypes = supportedBlacklistTypesStr.split(",");
for (int blTypes=0; blTypes < supportedBlacklistTypes.length; blTypes++) {
if (listManager.listSetContains(supportedBlacklistTypes[blTypes] + ".BlackLists",selectedBlacklistName)) {
plasmaSwitchboard.urlBlacklist.add(supportedBlacklistTypes[blTypes],newItem.substring(0, pos), newItem.substring(pos + 1));
}
}
}
}
}
} catch (Exception e) {
prop.put("status",1);
prop.put("status_error", e.getLocalizedMessage());
} finally {
if (pw != null) try { pw.close(); } catch (Exception e){ /* */}
}
prop.put("LOCATION","Blacklist_p.html?selectedListName=" + selectedBlacklistName + "&selectList=");
return prop;
}
// generate the html list
if (otherBlacklist != null) {
// loading the current blacklist content
HashSet Blacklist = new HashSet(listManager.getListArray(new File(listManager.listsPath, selectedBlacklistName)));
// sort the loaded blacklist
String[] sortedlist = (String[])otherBlacklist.toArray(new String[otherBlacklist.size()]);
Arrays.sort(sortedlist);
int count = 0;
for(int i = 0; i < sortedlist.length; i++){
String tmp = sortedlist[i];
if( !Blacklist.contains(tmp) && (!tmp.equals("")) ){
//newBlacklist.add(tmp);
prop.put("page_urllist_" + count + "_dark", count % 2 == 0 ? 0:1);
prop.put("page_urllist_" + count + "_url", tmp);
prop.put("page_urllist_" + count + "_count", count);
count++;
}
}
prop.put("page_urllist", (count));
prop.put("num", String.valueOf(count));
prop.put("page", 0);
}
} else {
prop.put("page", 1);
prop.put("status", 5);//Wrong Invokation
}
return prop;
}
}
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