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yacy_search_server/source/de/anomic/data/listManager.java

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// listManager.java
// -------------------------------------
// part of YACY
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2004
//
// This file ist contributed by Alexander Schier
// last major change: 09.08.2004
//
// 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.
package de.anomic.data;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Iterator;
import java.util.TreeMap;
import java.util.Vector;
import de.anomic.http.httpdProxyHandler;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.server.serverCore;
//The Naming of the functions is a bit strange...
public class listManager {
public static plasmaSwitchboard switchboard;
public static File listsPath;
//===============Listslists=====================
//get an array of all Lists from a Config Property
public static String[] getListslistArray(String Listname){
return switchboard.getConfig(Listname, "").split(",");
}
//removes a List from a Lists-List
public static void removeListFromListslist(String ListName, String BlackList){
String Lists[] = getListslistArray(ListName);
String temp = "";
for(int i=0;i <= Lists.length -1;i++){
if( !Lists[i].equals(BlackList) && !Lists[i].equals("") ){
temp += Lists[i] + ",";
}
}
if( temp.endsWith(",") ){ //remove "," at end...
temp = temp.substring(0, temp.length() -1);
}
if( temp.startsWith(",") ){ //remove "," at end...
temp = temp.substring(1, temp.length() );
}
switchboard.setConfig(ListName, temp);
}
//add a new List to a List-List
public static void addListToListslist(String ListName, String newList){
String Lists[] = getListslistArray(ListName);
String temp = "";
for(int i = 0;i <= (Lists.length -1); i++){
temp += Lists[i] + ",";
}
temp += newList;
switchboard.setConfig(ListName, temp);
}
//returns true, if the Lists-List contains the Listname
public static boolean ListInListslist(String Listname, String BlackList){
String Lists[] = getListslistArray(Listname);
for(int u=0;u <= Lists.length -1;u++){
if( BlackList.equals(Lists[u]) ){
return true;
}
}
return false;
}
//================generel Lists==================
//Gets a Array of all lines(Items) of a (list)file
public static Vector getListArray(File listFile){
String line;
Vector list = new Vector();
int count = 0;
BufferedReader br = null;
try{
br = new BufferedReader(new InputStreamReader(new FileInputStream(listFile)));
while( (line = br.readLine()) != null){
list.add(line);
count++;
}
br.close();
}catch(IOException e){
//list is empty
} finally {
if (br!=null)try{br.close();}catch(Exception e) {}
}
return list;
}
//Writes the Liststring to a file
public static boolean writeList(File listFile, String out){
BufferedWriter bw = null;
try{
bw = new BufferedWriter(new PrintWriter(new FileWriter(listFile)));
bw.write(out);
bw.close();
return true;
}catch(IOException e){
return false;
} finally {
if (bw!=null)try{bw.close();}catch(Exception e){}
}
}
//overloaded function to write an array
public static boolean writeList(File listFile, String[] list){
String out = "";
for(int i=0;i <= list.length; i++){
out += list[i] + serverCore.crlfString;
}
return writeList(listFile, out); //(File, String)
}
public static String getListString(String filename, boolean withcomments){
String temp = "";
String line = "";
BufferedReader br = null;
try{
br = new BufferedReader(new InputStreamReader(new FileInputStream(new File(listsPath ,filename))));
//Read the List
while((line = br.readLine()) != null){
if( (!line.startsWith("#") || withcomments) || (!line.equals("")) ){
temp += line + serverCore.crlfString;
}
}
br.close();
} catch(IOException e){
} finally {
if (br!=null)try{br.close();}catch(Exception e){}
}
return temp;
}
//get a Directory Listing as a String Array
public static String[] getDirListing(String dirname){
String[] fileListString;
File[] fileList;
File dir = new File(dirname);
if(dir != null){
if(!dir.exists()){
dir.mkdir();
}
fileList = dir.listFiles();
fileListString = new String[fileList.length];
for(int i=0;i<= fileList.length-1;i++){
fileListString[i]=fileList[i].getName();
}
return fileListString;
}
return null;
}
/**
* Returns a List of all dirs and subdirs as File Objects
*
* Warning: untested
*/
public static Vector getDirsRecursive(File dir){
File[] dirList = dir.listFiles();
Vector resultList = new Vector();
Vector recursive;
Iterator it;
for(int i=0;i<dirList.length;i++){
if(dirList[i].isDirectory()){
resultList.add(dirList[i]);
recursive = getDirsRecursive(dirList[i]);
it=recursive.iterator();
while(it.hasNext()){
resultList.add(it.next());
}
}
}
return resultList;
}
//=============Blacklist specific================
//load all active Blacklists in the Proxy
public static void reloadBlacklists(){
String f = switchboard.getConfig("proxyBlackListsActive", "");
if (f != ""){
httpdProxyHandler.blackListURLs = httpdProxyHandler.loadBlacklist("black", f, "/");
}else{
httpdProxyHandler.blackListURLs = new TreeMap();
}
}
}