diff options
Diffstat (limited to 'M4-RCs/qpid/java/broker/src/main/java/org/apache/qpid/server/security/auth/database/Base64MD5PasswordFilePrincipalDatabase.java')
| -rw-r--r-- | M4-RCs/qpid/java/broker/src/main/java/org/apache/qpid/server/security/auth/database/Base64MD5PasswordFilePrincipalDatabase.java | 499 |
1 files changed, 0 insertions, 499 deletions
diff --git a/M4-RCs/qpid/java/broker/src/main/java/org/apache/qpid/server/security/auth/database/Base64MD5PasswordFilePrincipalDatabase.java b/M4-RCs/qpid/java/broker/src/main/java/org/apache/qpid/server/security/auth/database/Base64MD5PasswordFilePrincipalDatabase.java deleted file mode 100644 index cca9deb6da..0000000000 --- a/M4-RCs/qpid/java/broker/src/main/java/org/apache/qpid/server/security/auth/database/Base64MD5PasswordFilePrincipalDatabase.java +++ /dev/null @@ -1,499 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - * - * - */ -package org.apache.qpid.server.security.auth.database; - -import org.apache.log4j.Logger; -import org.apache.qpid.server.security.access.management.AMQUserManagementMBean; -import org.apache.qpid.server.security.auth.sasl.AuthenticationProviderInitialiser; -import org.apache.qpid.server.security.auth.sasl.UsernamePrincipal; -import org.apache.qpid.server.security.auth.sasl.crammd5.CRAMMD5HashedInitialiser; - -import javax.security.auth.callback.PasswordCallback; -import javax.security.auth.login.AccountNotFoundException; -import java.io.BufferedReader; -import java.io.File; -import java.io.FileNotFoundException; -import java.io.FileReader; -import java.io.IOException; -import java.io.PrintStream; -import java.security.Principal; -import java.util.HashMap; -import java.util.LinkedList; -import java.util.List; -import java.util.Map; -import java.util.concurrent.locks.ReentrantLock; -import java.util.regex.Pattern; - -/** - * Represents a user database where the account information is stored in a simple flat file. - * - * The file is expected to be in the form: username:password username1:password1 ... usernamen:passwordn - * - * where a carriage return separates each username/password pair. Passwords are assumed to be in plain text. - */ -public class Base64MD5PasswordFilePrincipalDatabase implements PrincipalDatabase -{ - private static final Logger _logger = Logger.getLogger(Base64MD5PasswordFilePrincipalDatabase.class); - - private File _passwordFile; - - private Pattern _regexp = Pattern.compile(":"); - - private Map<String, AuthenticationProviderInitialiser> _saslServers; - - AMQUserManagementMBean _mbean; - public static final String DEFAULT_ENCODING = "utf-8"; - private Map<String, HashedUser> _users = new HashMap<String, HashedUser>(); - private ReentrantLock _userUpdate = new ReentrantLock(); - - public Base64MD5PasswordFilePrincipalDatabase() - { - _saslServers = new HashMap<String, AuthenticationProviderInitialiser>(); - - /** - * Create Authenticators for MD5 Password file. - */ - - // Accept Plain incomming and hash it for comparison to the file. - CRAMMD5HashedInitialiser cram = new CRAMMD5HashedInitialiser(); - cram.initialise(this); - _saslServers.put(cram.getMechanismName(), cram); - - //fixme The PDs should setup a PD Mangement MBean -// try -// { -// _mbean = new AMQUserManagementMBean(); -// _mbean.setPrincipalDatabase(this); -// } -// catch (JMException e) -// { -// _logger.warn("User management disabled as unable to create MBean:" + e); -// } - } - - public void setPasswordFile(String passwordFile) throws IOException - { - File f = new File(passwordFile); - _logger.info("PasswordFilePrincipalDatabase using file " + f.getAbsolutePath()); - _passwordFile = f; - if (!f.exists()) - { - throw new FileNotFoundException("Cannot find password file " + f); - } - if (!f.canRead()) - { - throw new FileNotFoundException("Cannot read password file " + f + - ". Check permissions."); - } - - loadPasswordFile(); - } - - /** - * SASL Callback Mechanism - sets the Password in the PasswordCallback based on the value in the PasswordFile - * If you want to change the password for a user, use updatePassword instead. - * - * @param principal The Principal to set the password for - * @param callback The PasswordCallback to call setPassword on - * - * @throws AccountNotFoundException If the Principal cannont be found in this Database - */ - public void setPassword(Principal principal, PasswordCallback callback) throws AccountNotFoundException - { - if (_passwordFile == null) - { - throw new AccountNotFoundException("Unable to locate principal since no password file was specified during initialisation"); - } - if (principal == null) - { - throw new IllegalArgumentException("principal must not be null"); - } - - char[] pwd = lookupPassword(principal.getName()); - - if (pwd != null) - { - callback.setPassword(pwd); - } - else - { - throw new AccountNotFoundException("No account found for principal " + principal); - } - } - - /** - * Used to verify that the presented Password is correct. Currently only used by Management Console - * - * @param principal The principal to authenticate - * @param password The password to check - * - * @return true if password is correct - * - * @throws AccountNotFoundException if the principal cannot be found - */ - public boolean verifyPassword(String principal, char[] password) throws AccountNotFoundException - { - char[] pwd = lookupPassword(principal); - - return compareCharArray(pwd, password); - } - - private boolean compareCharArray(char[] a, char[] b) - { - boolean equal = false; - if (a.length == b.length) - { - equal = true; - int index = 0; - while (equal && index < a.length) - { - equal = a[index] == b[index]; - index++; - } - } - return equal; - } - - /** - * Changes the password for the specified user - * - * @param principal to change the password for - * @param password plaintext password to set the password too - */ - public boolean updatePassword(Principal principal, char[] password) throws AccountNotFoundException - { - HashedUser user = _users.get(principal.getName()); - - if (user == null) - { - throw new AccountNotFoundException(principal.getName()); - } - - try - { - try - { - _userUpdate.lock(); - char[] orig = user.getPassword(); - user.setPassword(password); - - try - { - savePasswordFile(); - } - catch (IOException e) - { - _logger.error("Unable to save password file, password change for user'" - + principal + "' will revert at restart"); - //revert the password change - user.setPassword(orig); - return false; - } - return true; - } - finally - { - if (_userUpdate.isHeldByCurrentThread()) - { - _userUpdate.unlock(); - } - } - } - catch (Exception e) - { - return false; - } - } - - public boolean createPrincipal(Principal principal, char[] password) - { - if (_users.get(principal.getName()) != null) - { - return false; - } - - HashedUser user = new HashedUser(principal.getName(), password); - - try - { - _userUpdate.lock(); - _users.put(user.getName(), user); - - try - { - savePasswordFile(); - return true; - } - catch (IOException e) - { - //remove the use on failure. - _users.remove(user.getName()); - return false; - } - } - finally - { - if (_userUpdate.isHeldByCurrentThread()) - { - _userUpdate.unlock(); - } - } - } - - public boolean deletePrincipal(Principal principal) throws AccountNotFoundException - { - HashedUser user = _users.get(principal.getName()); - - if (user == null) - { - throw new AccountNotFoundException(principal.getName()); - } - - try - { - _userUpdate.lock(); - user.delete(); - - try - { - savePasswordFile(); - } - catch (IOException e) - { - _logger.warn("Unable to remove user '" + user.getName() + "' from password file."); - return false; - } - - _users.remove(user.getName()); - } - finally - { - if (_userUpdate.isHeldByCurrentThread()) - { - _userUpdate.unlock(); - } - } - - return true; - } - - public Map<String, AuthenticationProviderInitialiser> getMechanisms() - { - return _saslServers; - } - - public List<Principal> getUsers() - { - return new LinkedList<Principal>(_users.values()); - } - - public Principal getUser(String username) - { - if (_users.containsKey(username)) - { - return new UsernamePrincipal(username); - } - return null; - } - - /** - * Looks up the password for a specified user in the password file. Note this code is <b>not</b> secure since it - * creates strings of passwords. It should be modified to create only char arrays which get nulled out. - * - * @param name The principal name to lookup - * - * @return a char[] for use in SASL. - */ - private char[] lookupPassword(String name) - { - HashedUser user = _users.get(name); - if (user == null) - { - return null; - } - else - { - return user.getPassword(); - } - } - - private void loadPasswordFile() throws IOException - { - try - { - _userUpdate.lock(); - _users.clear(); - - BufferedReader reader = null; - try - { - reader = new BufferedReader(new FileReader(_passwordFile)); - String line; - - while ((line = reader.readLine()) != null) - { - String[] result = _regexp.split(line); - if (result == null || result.length < 2 || result[0].startsWith("#")) - { - continue; - } - - HashedUser user = new HashedUser(result); - _logger.info("Created user:" + user); - _users.put(user.getName(), user); - } - } - finally - { - if (reader != null) - { - reader.close(); - } - } - } - finally - { - if (_userUpdate.isHeldByCurrentThread()) - { - _userUpdate.unlock(); - } - } - } - - private void savePasswordFile() throws IOException - { - try - { - _userUpdate.lock(); - - BufferedReader reader = null; - PrintStream writer = null; - File tmp = new File(_passwordFile.getAbsolutePath() + ".tmp"); - if (tmp.exists()) - { - tmp.delete(); - } - - try - { - writer = new PrintStream(tmp); - reader = new BufferedReader(new FileReader(_passwordFile)); - String line; - - while ((line = reader.readLine()) != null) - { - String[] result = _regexp.split(line); - if (result == null || result.length < 2 || result[0].startsWith("#")) - { - writer.write(line.getBytes(DEFAULT_ENCODING)); - writer.println(); - continue; - } - - HashedUser user = _users.get(result[0]); - - if (user == null) - { - writer.write(line.getBytes(DEFAULT_ENCODING)); - writer.println(); - } - else if (!user.isDeleted()) - { - if (!user.isModified()) - { - writer.write(line.getBytes(DEFAULT_ENCODING)); - writer.println(); - } - else - { - try - { - byte[] encodedPassword = user.getEncodedPassword(); - - writer.write((user.getName() + ":").getBytes(DEFAULT_ENCODING)); - writer.write(encodedPassword); - writer.println(); - - user.saved(); - } - catch (Exception e) - { - _logger.warn("Unable to encode new password reverting to old password."); - writer.write(line.getBytes(DEFAULT_ENCODING)); - writer.println(); - } - } - } - } - - for (HashedUser user : _users.values()) - { - if (user.isModified()) - { - byte[] encodedPassword; - try - { - encodedPassword = user.getEncodedPassword(); - writer.write((user.getName() + ":").getBytes(DEFAULT_ENCODING)); - writer.write(encodedPassword); - writer.println(); - user.saved(); - } - catch (Exception e) - { - _logger.warn("Unable to get Encoded password for user'" + user.getName() + "' password not saved"); - } - } - } - } - finally - { - if (reader != null) - { - reader.close(); - } - - if (writer != null) - { - writer.close(); - } - - // Swap temp file to main password file. - File old = new File(_passwordFile.getAbsoluteFile() + ".old"); - if (old.exists()) - { - old.delete(); - } - _passwordFile.renameTo(old); - tmp.renameTo(_passwordFile); - tmp.delete(); - } - } - finally - { - if (_userUpdate.isHeldByCurrentThread()) - { - _userUpdate.unlock(); - } - } - } - -} |