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Move NoAuthenticationProvider under extensions/

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New auth providers shouldn't go in guacamole-ext, which is strictly the
API used by extensions to Guacamole. Instead this should be a separate
project like "guacamole-auth-noauth", and should go under extensions/.
This commit is contained in:
Laurent Meunier
2013-07-08 10:03:15 +02:00
committed by Michael Jumper
parent b3e3855fd1
commit f1f2e04860
6 changed files with 135 additions and 0 deletions
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202
guacamole-ext/src/main/java/net/sourceforge/guacamole/net/auth/noauth/NoAuthenticationProvider.java
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package net.sourceforge.guacamole.net.auth.noauth;
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is guacamole-auth.
*
* The Initial Developer of the Original Code is
* Michael Jumper.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.Reader;
import net.sourceforge.guacamole.GuacamoleException;
import net.sourceforge.guacamole.net.auth.simple.SimpleAuthenticationProvider;
import net.sourceforge.guacamole.net.auth.Credentials;
import net.sourceforge.guacamole.properties.FileGuacamoleProperty;
import net.sourceforge.guacamole.properties.GuacamoleProperties;
import net.sourceforge.guacamole.protocol.GuacamoleConfiguration;
import org.slf4j.LoggerFactory;
import org.slf4j.Logger;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;
/**
* Disable authentication in Guacamole. All users accessing Guacamole are
* automatically authenticated as "Anonymous" user and are able to use all
* available GuacamoleConfigurations.
*
* GuacamoleConfiguration are read from the XML file defined by `noauth-config`
* in the Guacamole configuration file (`guacamole.properties`).
*
*
* Example `guacamole.properties`:
*
* auth-provider: net.sourceforge.guacamole.net.auth.noauth.NoAuthenticationProvider
* noauth-config: /etc/guacamole/noauth-config.xml
*
*
* Example `noauth-config.xml`:
*
* <configs>
* <config name="my-rdp-server" protocol="rdp">
* <param name="hostname" value="my-rdp-server-hostname" />
* <param name="port" value="3389" />
* </config>
* </configs>
*
*/
public class NoAuthenticationProvider extends SimpleAuthenticationProvider {
private Logger logger = LoggerFactory.getLogger(NoAuthenticationProvider.class);
private Map<String, GuacamoleConfiguration> configs;
private long configTime;
/**
* The filename of the XML file to read the user mapping from.
*/
public static final FileGuacamoleProperty NOAUTH_CONFIG = new FileGuacamoleProperty() {
@Override
public String getName() {
return "noauth-config";
}
};
private File getConfigurationFile() throws GuacamoleException {
// Get configuration file
return GuacamoleProperties.getProperty(NOAUTH_CONFIG);
}
public synchronized void init() throws GuacamoleException {
// Get configuration file
File configFile = getConfigurationFile();
if(configFile == null) {
throw new GuacamoleException(
"Missing \"noauth-config\" parameter required for NoAuthenticationProvider."
);
}
logger.info("Reading configuration file: {}", configFile);
// Parse document
try {
// Set up parser
NoAuthConfigContentHandler contentHandler = new NoAuthConfigContentHandler();
XMLReader parser = XMLReaderFactory.createXMLReader();
parser.setContentHandler(contentHandler);
// Read and parse file
Reader reader = new BufferedReader(new FileReader(configFile));
parser.parse(new InputSource(reader));
reader.close();
// Init configs
configTime = configFile.lastModified();
configs = contentHandler.getConfigs();
}
catch (IOException e) {
throw new GuacamoleException("Error reading configuration file: " + e.getMessage(), e);
}
catch (SAXException e) {
throw new GuacamoleException("Error parsing XML file: " + e.getMessage(), e);
}
}
@Override
public Map<String, GuacamoleConfiguration> getAuthorizedConfigurations(Credentials credentials) throws GuacamoleException {
// Check mapping file mod time
File configFile = getConfigurationFile();
if (configFile.exists() && configTime < configFile.lastModified()) {
// If modified recently, gain exclusive access and recheck
synchronized (this) {
if (configFile.exists() && configTime < configFile.lastModified()) {
logger.info("Config file {} has been modified.", configFile);
init(); // If still not up to date, re-init
}
}
}
// If no mapping available, report as such
if (configs == null) {
throw new GuacamoleException("Configuration could not be read.");
}
// Guacamole 0.8 wants a username to be set, otherwise the
// authentication process will fail.
credentials.setUsername("Anonymous");
return configs;
}
private static class NoAuthConfigContentHandler extends DefaultHandler {
private Map<String, GuacamoleConfiguration> configs = new HashMap<String, GuacamoleConfiguration>();
private String current = null;
private GuacamoleConfiguration currentConfig = null;
public Map<String, GuacamoleConfiguration> getConfigs() {
return Collections.unmodifiableMap(configs);
}
@Override
public void endElement(String uri, String localName, String qName) throws SAXException {
if(localName.equals("config")) {
configs.put(current, currentConfig);
}
}
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
if(localName.equals("config")) {
current = attributes.getValue("name");
currentConfig = new GuacamoleConfiguration();
currentConfig.setProtocol(attributes.getValue("protocol"));
return;
} else if(localName.equals("param")) {
currentConfig.setParameter(attributes.getValue("name"),
attributes.getValue("value"));
}
}
}
}