mirror of
https://github.com/yacy/yacy_search_server.git
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8e732d437c
Also ensure authentication is not lost by Digest timeout when navigating between index.html and search results page. This way, running searches with extended features on a remote peer or a password protected peer works with a regular user (with "Extended search" rights). When authenticating on the search page with a user without "Extended search" rights, it appears as authenticated, but has just its usual access to the public search features.
657 lines
24 KiB
Java
657 lines
24 KiB
Java
//UserDB.java
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//-------------------------------------
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//part of YACY
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//
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//(C) 2005, 2006 by Martin Thelian
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// Alexander Schier
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//
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//$LastChangedDate$
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//$LastChangedRevision$
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//$LastChangedBy$
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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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package net.yacy.data;
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import java.io.File;
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import java.io.IOException;
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import java.security.Principal;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Locale;
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import java.util.Map;
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import java.util.Random;
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import javax.servlet.http.Cookie;
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import javax.servlet.http.HttpServletRequest;
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import net.yacy.cora.document.encoding.UTF8;
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import net.yacy.cora.order.Base64Order;
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import net.yacy.cora.order.CloneableIterator;
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import net.yacy.cora.order.Digest;
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import net.yacy.cora.order.NaturalOrder;
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import net.yacy.cora.protocol.RequestHeader;
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import net.yacy.cora.util.ConcurrentLog;
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import net.yacy.cora.util.SpaceExceededException;
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import net.yacy.kelondro.blob.MapHeap;
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import net.yacy.kelondro.util.FileUtils;
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import net.yacy.kelondro.util.kelondroException;
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import net.yacy.search.Switchboard;
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import net.yacy.search.SwitchboardConstants;
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/**
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* Holds details of users that can login to YaCy, their rights and credentials.
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* Caches succesfull login, holding cookie and/or ip information.
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*
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* In addition a systemadmin (static admin) account is available by default,
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* included in the global Switchboard configuration.
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*
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*/
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public final class UserDB {
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private static final int USERNAME_MIN_LENGTH = 4;
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private MapHeap userTable;
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private final File userTableFile;
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private final Map<String, String> ipUsers = new HashMap<String, String>();
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private final Map<String, Entry> cookieUsers = new HashMap<String, Entry>(); // mapping to identify user by a login cookie "login=<token>"
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public UserDB(final File userTableFile) throws IOException {
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this.userTableFile = userTableFile;
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userTableFile.getParentFile().mkdirs();
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this.userTable = new MapHeap(userTableFile, 128, NaturalOrder.naturalOrder, 1024 * 64, 10, '_');
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}
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void resetDatabase() {
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// deletes the database and creates a new one
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if (userTable != null) {
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userTable.close();
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}
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FileUtils.deletedelete(userTableFile);
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userTableFile.getParentFile().mkdirs();
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try {
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userTable = new MapHeap(userTableFile, 128, NaturalOrder.naturalOrder, 1024 * 64, 10, '_');
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} catch (final IOException e) {
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ConcurrentLog.logException(e);
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}
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}
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public synchronized void close() {
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userTable.close();
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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(final String hostName) {
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try {
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userTable.delete(UTF8.getBytes(hostName));
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} catch (final IOException e) {
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ConcurrentLog.logException(e);
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}
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}
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public Entry getEntry(String userName) {
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if (userName.length() > 128) {
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userName = userName.substring(0, 127);
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}
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Map<String, String> record = null;
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try {
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record = userTable.get(UTF8.getBytes(userName));
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} catch (final IOException e) {
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ConcurrentLog.logException(e);
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} catch (final SpaceExceededException e) {
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ConcurrentLog.logException(e);
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}
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return (record != null) ? new Entry(userName, record) : null;
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}
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public Entry createEntry(final String userName, final Map<String, String> userProps) throws IllegalArgumentException{
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final Entry entry = new Entry(userName,userProps);
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return entry;
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}
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public String addEntry(final Entry entry) {
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try {
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userTable.insert(UTF8.getBytes(entry.userName), entry.mem);
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return entry.userName;
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} catch (final Exception e) {
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ConcurrentLog.logException(e);
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return null;
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}
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}
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/**
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* Use a ProxyAuth Value to authenticate user from HttpHeader.Authentication.
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* This supports only Basic authentication
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* @param header the current request HTTP headers including 'Authorization' header :
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* either "BASIC " followed by base64 Encoded String, which contains "username:pw" for basic authentication,
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* or "Digest" followed by valid user name, realm, nonce and other necessary parameters.
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* @return the user entry when the authentication header contains valid authentication information or null
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*/
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public Entry proxyAuth(final RequestHeader header) {
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Entry entry = null;
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if(header == null) {
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return entry;
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}
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final String authHeader = header.get(RequestHeader.AUTHORIZATION, "").trim();
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if (authHeader.toUpperCase(Locale.ROOT).startsWith(HttpServletRequest.BASIC_AUTH)) {
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String auth = authHeader.substring(6); // take out prefix "BASIC"
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final String[] tmp = Base64Order.standardCoder.decodeString(auth.trim()).split(":");
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if (tmp.length == 2) {
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entry = this.passwordAuth(tmp[0], tmp[1]);
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if (entry == null) {
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entry = this.md5Auth(tmp[0], tmp[1]);
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}
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}
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} else if (authHeader.toUpperCase(Locale.ROOT).startsWith(HttpServletRequest.DIGEST_AUTH)) {
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// handle DIGEST auth by servlet container
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final Principal authenticatedUser = header.getUserPrincipal();
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if (authenticatedUser != null && authenticatedUser.getName() != null) { // user is authenticated by Servlet container
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entry = getEntry(authenticatedUser.getName());
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}
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}
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return entry;
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}
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/**
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* @param header the HTTP request headers
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* @return the authenticated user with valid authentication information found in the headers or null
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*/
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public Entry getUser(final RequestHeader header){
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return getUser(header, header.getCookies());
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}
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/**
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* @param header HTTP request headers
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* @param cookies eventual client cookies
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* @return the authenticated user entry from headers or cookies or null
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*/
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public Entry getUser(final RequestHeader header, final Cookie[] cookies){
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Entry entry = proxyAuth(header);
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if(entry == null && cookies != null) {
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entry=cookieAuth(cookies);
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}
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return entry;
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}
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/**
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* Determine if a user has admin rights from a 'Authorisation' http header field.
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* Tests both userDB and old style adminpw.
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*
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* @param auth http-headerline for authorisation.
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* @param cookies
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*/
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public boolean hasAdminRight(final RequestHeader header, final Cookie[] cookies) {
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final Entry entry = getUser(header, cookies);
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return (entry != null) ? entry.hasRight(AccessRight.ADMIN_RIGHT) : false;
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}
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/**
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* Use HTTP headers to authenticate user and save IP/username for ipAuth.
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* @param header HTTP request headers including 'Authorization' header with either base64 Encoded String, which contains "username:pw",
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* or Digest authentication information including notably user name, realm, and nonce.
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* @param ip IP address.
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*/
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public Entry proxyAuth(final RequestHeader header, final String ip) {
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final Entry entry = proxyAuth(header);
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if (entry != null) {
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entry.updateLastAccess(false);
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this.ipUsers.put(ip, entry.getUserName());
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}
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return entry;
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}
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/**
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* Authenticate a user by ip, if he has used proxyAuth in the last 10 minutes.
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* @param ip IP address of user.
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*/
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public Entry ipAuth(final String ip) {
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if(this.ipUsers.containsKey(ip)){
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final String user = this.ipUsers.get(ip);
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final Entry entry = this.getEntry(user);
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final Long entryTimestamp = entry.getLastAccess();
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if (entryTimestamp == null ||
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(System.currentTimeMillis()-entryTimestamp.longValue()) > (1000*60*10) ){ //no timestamp or older than 10 Minutes
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return null;
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}
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return entry; //All OK
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}
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return null;
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}
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public Entry passwordAuth(final String user, final String password) {
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final Entry entry = this.getEntry(user);
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final String md5pwd;
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if (entry != null && (md5pwd = entry.getMD5EncodedUserPwd()) != null) {
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boolean authok;
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if (md5pwd.startsWith("MD5:")) { // DIGEST style
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authok = md5pwd.equals("MD5:" + Digest.encodeMD5Hex(user + ":"
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+ Switchboard.getSwitchboard().getConfig(SwitchboardConstants.ADMIN_REALM, "YaCy") + ":" + password));
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} else {
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authok = md5pwd.equals(Digest.encodeMD5Hex(user + ":" + password));
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}
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if (authok) {
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entry.updateLastAccess(false);
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return entry;
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}
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}
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return null;
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}
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public Entry passwordAuth(final String user, final String password, final String ip){
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final Entry entry = passwordAuth(user, password);
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if (entry != null) {
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entry.updateLastAccess(false);
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this.ipUsers.put(ip, entry.getUserName()); //XXX: This is insecure. TODO: use cookieauth
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}
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return entry;
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}
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public Entry md5Auth(final String user, final String md5) {
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final Entry entry = this.getEntry(user);
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if (entry != null && entry.getMD5EncodedUserPwd().endsWith(md5)) { // user pwd migth have prefix "MD5:"
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entry.updateLastAccess(false);
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return entry;
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}
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return null;
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}
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/**
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* Returns the user entry matching the cookie login token created and set
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* on login.
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*
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* @param cookies
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* @return user entry or null
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*/
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public Entry cookieAuth(final Cookie[] cookies){
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final String token = getLoginToken(cookies);
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if (cookieUsers.containsKey(token)) {
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final Entry entry = cookieUsers.get(token);
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return entry;
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}
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return null;
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}
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public String getCookie(final Entry entry){
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final Random r = new Random();
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final String token = Long.toString(Math.abs(r.nextLong()), 36);
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cookieUsers.put(token, entry);
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return token;
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}
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/**
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* Extracts the token set as value in a cookie with name "login"
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* @param cookies
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* @return login token string
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*/
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public static String getLoginToken(final Cookie[] cookies) {
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if (cookies != null) {
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for (final Cookie c : cookies) {
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if (c.getName().equals("login")) {
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return c.getValue().trim();
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}
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}
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}
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return "";
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}
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public enum AccessRight {
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//to create new rights, you just add them here
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UPLOAD_RIGHT("uploadRight", "Upload"),
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DOWNLOAD_RIGHT("downloadRight", "Download"),
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ADMIN_RIGHT("adminRight", "Admin"),
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PROXY_RIGHT("proxyRight", "Proxy usage"),
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BLOG_RIGHT("blogRight", "Blog"),
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WIKIADMIN_RIGHT("wikiAdminRight", "Wiki Admin"),
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BOOKMARK_RIGHT("bookmarkRight", "Bookmark"),
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EXTENDED_SEARCH_RIGHT("extendedSearchRight", "Extended Search");
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private String name;
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private String friendlyName;
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AccessRight(final String name, final String friendlyName) {
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this.friendlyName = friendlyName;
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this.name = name;
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}
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@Override
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public String toString() {
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return name;
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}
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public String getFriendlyName() {
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return friendlyName;
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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"; // value = "MD5:" + MD5Hex(username +":"+ realm + ":" pwd)
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// oldstyle = MD5Hex(username +":"+ pwd)
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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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public static final String LAST_ACCESS = "lastAccess";
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public static final String TIME_USED = "timeUsed";
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public static final String TIME_LIMIT = "timeLimit";
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public static final String TRAFFIC_SIZE = "trafficSize";
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public static final String TRAFFIC_LIMIT = "trafficLimit";
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public static final int PROXY_ALLOK = 0; //can Surf
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public static final int PROXY_ERROR = 1; //unknown error
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public static final int PROXY_NORIGHT = 2; //no proxy right
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public static final int PROXY_TIMELIMIT_REACHED = 3;
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// this is a simple record structure that hold all properties of a user
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private Map<String, String> mem;
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private String userName;
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private final Calendar oldDate, newDate;
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public Entry(final String userName, final Map<String, String> mem) throws IllegalArgumentException {
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if ((userName == null) || (userName.isEmpty())) {
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throw new IllegalArgumentException("Username needed.");
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}
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if (userName.length()>128) {
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throw new IllegalArgumentException("Username too long!");
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}
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this.userName = userName.trim();
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if (this.userName.length() < USERNAME_MIN_LENGTH) {
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throw new IllegalArgumentException("Username too short. Length should be >= " + USERNAME_MIN_LENGTH);
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}
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this.mem = (mem == null) ? new HashMap<String, String>() : mem;
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this.oldDate=Calendar.getInstance();
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this.newDate=Calendar.getInstance();
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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) ? 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) ? 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) ? this.mem.get(USER_ADDRESS) : null);
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}
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public long getTimeUsed() {
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long ret = 0L;
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String s = this.mem.get(TIME_USED);
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if (s != null && s.length() > 0) {
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try{
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ret = Long.parseLong(s);
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} catch (final NumberFormatException e){
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ConcurrentLog.logException(e);
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}
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} else {
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try {
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this.setProperty(TIME_USED,"0");
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} catch (final Exception e) {
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ConcurrentLog.logException(e);
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}
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}
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return ret;
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}
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public long getTimeLimit() {
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long ret = 0L;
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String s = this.mem.get(TIME_LIMIT);
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if (s != null && s.length() > 0) {
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try {
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ret = Long.parseLong(s);
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} catch (final NumberFormatException e){
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ConcurrentLog.logException(e);
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}
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} else {
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try {
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this.setProperty(TIME_LIMIT, "0");
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} catch (final Exception e) {
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ConcurrentLog.logException(e);
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}
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}
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return ret;
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}
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public long getTrafficSize() {
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long ret = 0L;
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String s = this.mem.get(TRAFFIC_SIZE);
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if (s != null && s.length() > 0) {
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try {
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ret = Long.parseLong(s);
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} catch (final NumberFormatException e) {
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ConcurrentLog.logException(e);
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}
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} else {
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try {
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this.setProperty(TRAFFIC_SIZE, "0");
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} catch (final Exception e) {
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ConcurrentLog.logException(e);
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}
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}
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return ret;
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}
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public Long getTrafficLimit() {
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return (this.mem.containsKey(TRAFFIC_LIMIT) ? Long.valueOf(this.mem.get(TRAFFIC_LIMIT)) : null);
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}
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public long updateTrafficSize(final long responseSize) {
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if (responseSize < 0) {
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throw new IllegalArgumentException("responseSize must be greater or equal zero.");
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}
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final long currentTrafficSize = getTrafficSize();
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final long newTrafficSize = currentTrafficSize + responseSize;
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try {
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this.setProperty(TRAFFIC_SIZE,Long.toString(newTrafficSize));
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} catch (final Exception e) {
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ConcurrentLog.logException(e);
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}
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return newTrafficSize;
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}
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public Long getLastAccess() {
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return (this.mem.containsKey(LAST_ACCESS) ? Long.valueOf(this.mem.get(LAST_ACCESS)) : null);
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}
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public int surfRight(){
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final long timeUsed=this.updateLastAccess(true);
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final int ret;
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if (!this.hasRight(AccessRight.PROXY_RIGHT)) {
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ret = PROXY_NORIGHT;
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} else if(! (this.getTimeLimit() <= 0 || (timeUsed < this.getTimeLimit())) ){ //no timelimit or timelimit not reached
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ret = PROXY_TIMELIMIT_REACHED;
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} else {
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ret = PROXY_ALLOK;
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}
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return ret;
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}
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public boolean canSurf(){
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return (this.surfRight() == PROXY_ALLOK);
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}
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public long updateLastAccess(final boolean incrementTimeUsed) {
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return updateLastAccess(System.currentTimeMillis(), incrementTimeUsed);
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}
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public long updateLastAccess(final long timeStamp, final boolean incrementTimeUsed) {
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if (timeStamp < 0) {
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throw new IllegalArgumentException();
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}
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final Long lastAccess = this.getLastAccess();
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long newTimeUsed = getTimeUsed();
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if (incrementTimeUsed) {
|
|
if ((lastAccess == null) || (timeStamp - lastAccess.longValue() >= 1000*60)) {//1 minute
|
|
newTimeUsed++;
|
|
if (lastAccess != null) {
|
|
this.oldDate.setTime(new Date(lastAccess.longValue()));
|
|
this.newDate.setTime(new Date(System.currentTimeMillis()));
|
|
if(
|
|
this.oldDate.get(Calendar.DAY_OF_MONTH) != this.newDate.get(Calendar.DAY_OF_MONTH) ||
|
|
this.oldDate.get(Calendar.MONTH) != this.newDate.get(Calendar.MONTH) ||
|
|
this.oldDate.get(Calendar.YEAR) != this.newDate.get(Calendar.YEAR)
|
|
){ //new Day, reset time
|
|
newTimeUsed=0;
|
|
}
|
|
}else{ //no access so far
|
|
newTimeUsed=0;
|
|
}
|
|
this.mem.put(TIME_USED,Long.toString(newTimeUsed));
|
|
this.mem.put(LAST_ACCESS,Long.toString(timeStamp)); //update Timestamp
|
|
}
|
|
} else {
|
|
this.mem.put(LAST_ACCESS,Long.toString(timeStamp)); //update Timestamp
|
|
}
|
|
|
|
try {
|
|
UserDB.this.userTable.insert(UTF8.getBytes(getUserName()), this.mem);
|
|
} catch(final Exception e){
|
|
ConcurrentLog.logException(e);
|
|
}
|
|
return newTimeUsed;
|
|
}
|
|
|
|
/**
|
|
* @return encode credential = "MD5:" + MD5Hex(username +":"+ realm + ":" pwd) or null. (old style = MD5Hex(username +":"+ pwd)
|
|
*/
|
|
public String getMD5EncodedUserPwd() {
|
|
return (this.mem.containsKey(MD5ENCODED_USERPWD_STRING)) ? this.mem.get(MD5ENCODED_USERPWD_STRING) : null;
|
|
}
|
|
|
|
public Map<String, String> getProperties() {
|
|
return this.mem;
|
|
}
|
|
|
|
public void setProperty(final String propName, final String newValue) throws IOException, SpaceExceededException {
|
|
this.mem.put(propName, newValue);
|
|
UserDB.this.userTable.insert(UTF8.getBytes(getUserName()), this.mem);
|
|
}
|
|
|
|
public String getProperty(final String propName, final String defaultValue) {
|
|
return (this.mem.containsKey(propName) ? this.mem.get(propName) : defaultValue);
|
|
}
|
|
|
|
public boolean hasRight(final AccessRight accessRight){
|
|
return (this.mem.containsKey(accessRight.toString())) ? this.mem.get(accessRight.toString()).equals("true") : false;
|
|
}
|
|
|
|
public void logout(final String ip, final String logintoken){
|
|
logout(ip);
|
|
if(cookieUsers.containsKey(logintoken)){
|
|
cookieUsers.remove(logintoken);
|
|
}
|
|
}
|
|
|
|
public void logout(final String ip) {
|
|
try {
|
|
if (ipUsers.containsKey(ip)){
|
|
ipUsers.remove(ip);
|
|
}
|
|
} catch (final Exception e) {
|
|
ConcurrentLog.logException(e);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
final StringBuilder str = new StringBuilder();
|
|
|
|
str.append((this.userName == null) ? "null" : this.userName).append(": ");
|
|
|
|
if (this.mem != null) {
|
|
str.append(this.mem.toString());
|
|
}
|
|
|
|
return str.toString();
|
|
}
|
|
|
|
}
|
|
|
|
public Iterator<Entry> iterator(final boolean up) {
|
|
// enumerates users
|
|
try {
|
|
return new userIterator(up);
|
|
} catch (final IOException e) {
|
|
return new HashSet<Entry>().iterator();
|
|
}
|
|
}
|
|
|
|
|
|
public class userIterator implements Iterator<Entry> {
|
|
// the iterator iterates all userNames
|
|
CloneableIterator<byte[]> userIter;
|
|
//userDB.Entry nextEntry;
|
|
|
|
public userIterator(final boolean up) throws IOException {
|
|
this.userIter = UserDB.this.userTable.keys(up, false);
|
|
//this.nextEntry = null;
|
|
}
|
|
|
|
@Override
|
|
public boolean hasNext() {
|
|
try {
|
|
return this.userIter.hasNext();
|
|
} catch (final kelondroException e) {
|
|
resetDatabase();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public Entry next() {
|
|
try {
|
|
return getEntry(UTF8.String(this.userIter.next()));
|
|
} catch (final kelondroException e) {
|
|
resetDatabase();
|
|
return null;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public void remove() {
|
|
// if (this.nextEntry != null) {
|
|
// try {
|
|
// final Object userName = this.nextEntry.getUserName();
|
|
// if (userName != null) removeEntry((String) userName);
|
|
// } catch (final kelondroException e) {
|
|
// resetDatabase();
|
|
// }
|
|
// }
|
|
throw new UnsupportedOperationException("Method not implemented yet.");
|
|
}
|
|
}
|
|
|
|
}
|