git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@817 6c8d7289-2bf4-0310-a012-ef5d649a1542pull/1/head
theli
20 years ago
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//userDB.java
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//-------------------------------------
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//part of YACY
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//(C) by Michael Peter Christen; mc@anomic.de
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//first published on http://www.anomic.de
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//Frankfurt, Germany, 2004
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//
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//This file ist contributed by Martin Thelian
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//last major change: $LastChangedDate$ by $LastChangedBy$
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//Revision: $LastChangedRevision$
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//
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//This program is free software; you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation; either version 2 of the License, or
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//(at your option) any later version.
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//
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//This program is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with this program; if not, write to the Free Software
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//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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//Using this software in any meaning (reading, learning, copying, compiling,
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//running) means that you agree that the Author(s) is (are) not responsible
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//for cost, loss of data or any harm that may be caused directly or indirectly
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//by usage of this softare or this documentation. The usage of this software
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//is on your own risk. The installation and usage (starting/running) of this
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//software may allow other people or application to access your computer and
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//any attached devices and is highly dependent on the configuration of the
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//software which must be done by the user of the software; the author(s) is
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//(are) also not responsible for proper configuration and usage of the
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//software, even if provoked by documentation provided together with
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//the software.
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//
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//Any changes to this file according to the GPL as documented in the file
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//gpl.txt aside this file in the shipment you received can be done to the
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//lines that follows this copyright notice here, but changes must not be
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//done inside the copyright notive above. A re-distribution must contain
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//the intact and unchanged copyright notice.
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//Contributions and changes to the program code must be marked as such.
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package de.anomic.data;
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import java.io.File;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.Map;
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import de.anomic.kelondro.kelondroDyn;
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import de.anomic.kelondro.kelondroException;
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import de.anomic.kelondro.kelondroMap;
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import de.anomic.server.logging.serverLog;
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public class userDB {
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public static final int USERNAME_MAX_LENGTH = 128;
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public static final int USERNAME_MIN_LENGTH = 4;
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private kelondroMap userTable;
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private File userTableFile;
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private int bufferkb;
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public userDB(File robotsTableFile, int bufferkb) throws IOException {
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this.userTableFile = robotsTableFile;
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this.bufferkb = bufferkb;
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if (robotsTableFile.exists()) {
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try {
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this.userTable = new kelondroMap(new kelondroDyn(robotsTableFile, bufferkb * 1024));
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} catch (kelondroException e) {
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robotsTableFile.delete();
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robotsTableFile.getParentFile().mkdirs();
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this.userTable = new kelondroMap(new kelondroDyn(robotsTableFile, bufferkb * 1024, 128, 256));
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}
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} else {
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robotsTableFile.getParentFile().mkdirs();
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this.userTable = new kelondroMap(new kelondroDyn(robotsTableFile, bufferkb * 1024, 128, 256));
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}
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}
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public int[] dbCacheChunkSize() {
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return userTable.cacheChunkSize();
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}
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public int[] dbCacheFillStatus() {
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return userTable.cacheFillStatus();
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}
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private void resetDatabase() {
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// deletes the database and creates a new one
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if (userTable != null) try {
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userTable.close();
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} catch (IOException e) {}
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if (!(userTableFile.delete())) throw new RuntimeException("cannot delete user database");
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try {
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userTableFile.getParentFile().mkdirs();
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userTable = new kelondroMap(new kelondroDyn(userTableFile, this.bufferkb, 256, 512));
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} catch (IOException e){
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serverLog.logSevere("PLASMA", "user.resetDatabase", e);
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}
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}
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public void close() {
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try {
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userTable.close();
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} catch (IOException e) {}
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}
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public int size() {
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return userTable.size();
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}
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public void removeEntry(String hostName) {
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try {
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userTable.remove(hostName.toLowerCase());
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} catch (IOException e) {}
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}
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public Entry getEntry(String hostName) {
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try {
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Map record = userTable.get(hostName);
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if (record == null) return null;
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return new Entry(hostName, record);
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} catch (IOException e) {
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return null;
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}
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}
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public Entry addEntry(String userName, HashMap userProps) {
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Entry entry = new Entry(userName,userProps);
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addEntry(entry);
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return entry;
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}
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public String addEntry(Entry entry) {
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try {
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userTable.set(entry.userName,entry.mem);
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return entry.userName;
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} catch (IOException e) {
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return null;
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}
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}
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public class Entry {
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public static final String MD5ENCODED_USERPWD_STRING = "MD5_user:pwd";
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public static final String AUTHENTICATION_METHOD = "auth_method";
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public static final String USER_FIRSTNAME = "firstName";
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public static final String USER_LASTNAME = "lastName";
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public static final String USER_ADDRESS = "address";
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// this is a simple record structure that hold all properties of a user
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private Map mem;
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private String userName;
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public Entry(String userName, Map mem) {
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if ((userName == null) || (userName.length() == 0))
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throw new IllegalArgumentException();
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this.userName = userName.trim();
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if (userName.length() < USERNAME_MIN_LENGTH)
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throw new IllegalArgumentException("Username to short. Length should be >= " + USERNAME_MIN_LENGTH);
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if (mem == null) this.mem = new HashMap();
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else this.mem = mem;
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if (!mem.containsKey(AUTHENTICATION_METHOD))this.mem.put(AUTHENTICATION_METHOD,"yacy");
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}
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public String getUserName() {
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return this.userName;
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}
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public String getFirstName() {
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return (this.mem.containsKey(USER_FIRSTNAME)?(String)this.mem.get(USER_FIRSTNAME):null);
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}
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public String getLastName() {
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return (this.mem.containsKey(USER_LASTNAME)?(String)this.mem.get(USER_LASTNAME):null);
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}
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public String getAddress() {
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return (this.mem.containsKey(USER_ADDRESS)?(String)this.mem.get(USER_ADDRESS):null);
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}
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public String getMD5EncodedUserPwd() {
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return (this.mem.containsKey(MD5ENCODED_USERPWD_STRING)?(String)this.mem.get(MD5ENCODED_USERPWD_STRING):null);
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}
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public Map getProperties() {
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return this.mem;
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}
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public String toString() {
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StringBuffer str = new StringBuffer();
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str.append((this.userName==null)?"null":this.userName)
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.append(": ");
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if (this.mem != null) {
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str.append(this.mem.toString());
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}
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return str.toString();
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}
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}
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}
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