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This commit is contained in:
Michael Jumper
2010-12-08 13:14:04 -08:00
commit 93a9e8a41a
17 changed files with 1616 additions and 0 deletions
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57
guacamole-common/pom.xml Normal file
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>net.sourceforge.guacamole</groupId>
<artifactId>guacamole-common</artifactId>
<packaging>jar</packaging>
<version>0.3.0rc1</version>
<name>guacamole-common</name>
<url>http://guacamole.sourceforge.net/</url>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
<extensions>
<!-- Required for SSH deploy -->
<extension>
<groupId>org.apache.maven.wagon</groupId>
<artifactId>wagon-ssh-external</artifactId>
</extension>
</extensions>
</build>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
</dependencies>
<repositories>
<repository>
<id>guac-dev</id>
<url>http://guac-dev.org/repo</url>
</repository>
</repositories>
<distributionManagement>
<repository>
<id>guac-dev</id>
<url>scpexe://guac-dev.org/var/www/repo</url>
</repository>
</distributionManagement>
</project>

30
guacamole-common/src/main/java/net/sourceforge/guacamole/Client.java Normal file
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package net.sourceforge.guacamole;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import net.sourceforge.guacamole.GuacamoleException;
public abstract class Client {
public abstract void write(char[] chunk, int off, int len) throws GuacamoleException;
public abstract char[] read() throws GuacamoleException;
public abstract void disconnect() throws GuacamoleException;
}

129
guacamole-common/src/main/java/net/sourceforge/guacamole/GuacamoleClient.java Normal file
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package net.sourceforge.guacamole;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.io.InputStream;
import java.io.Reader;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.Writer;
import java.io.OutputStreamWriter;
import net.sourceforge.guacamole.GuacamoleException;
public class GuacamoleClient extends Client {
private Socket sock;
private Reader input;
private Writer output;
public GuacamoleClient(String hostname, int port) throws GuacamoleException {
try {
sock = new Socket(InetAddress.getByName(hostname), port);
input = new InputStreamReader(sock.getInputStream());
output = new OutputStreamWriter(sock.getOutputStream());
}
catch (IOException e) {
throw new GuacamoleException(e);
}
}
public void write(char[] chunk, int off, int len) throws GuacamoleException {
try {
output.write(chunk, off, len);
output.flush();
}
catch (IOException e) {
throw new GuacamoleException(e);
}
}
public void disconnect() throws GuacamoleException {
try {
sock.close();
}
catch (IOException e) {
throw new GuacamoleException(e);
}
}
private int usedLength = 0;
private char[] buffer = new char[20000];
public char[] read() throws GuacamoleException {
try {
// While we're blocking, or input is available
for (;;) {
// If past threshold, resize buffer before reading
if (usedLength > buffer.length/2) {
char[] biggerBuffer = new char[buffer.length*2];
System.arraycopy(buffer, 0, biggerBuffer, 0, usedLength);
buffer = biggerBuffer;
}
// Attempt to fill buffer
int numRead = input.read(buffer, usedLength, buffer.length - usedLength);
if (numRead == -1)
return null;
int prevLength = usedLength;
usedLength += numRead;
for (int i=usedLength-1; i>=prevLength; i--) {
char readChar = buffer[i];
// If end of instruction, return it.
if (readChar == ';') {
// Get instruction
char[] chunk = new char[i+1];
System.arraycopy(buffer, 0, chunk, 0, i+1);
// Reset buffer
usedLength -= i+1;
System.arraycopy(buffer, i+1, buffer, 0, usedLength);
// Return instruction string
return chunk;
}
}
} // End read loop
}
catch (IOException e) {
throw new GuacamoleException(e);
}
}
}

36
guacamole-common/src/main/java/net/sourceforge/guacamole/GuacamoleException.java Normal file
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package net.sourceforge.guacamole;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
public class GuacamoleException extends Exception {
public GuacamoleException(String message, Throwable cause) {
super(message, cause);
}
public GuacamoleException(String message) {
super(message);
}
public GuacamoleException(Throwable cause) {
super(cause);
}
}

129
guacamole-common/src/main/java/net/sourceforge/guacamole/net/Configuration.java Normal file
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package net.sourceforge.guacamole.net;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import javax.servlet.ServletContext;
import net.sourceforge.guacamole.GuacamoleException;
public abstract class Configuration {
protected String humanReadableList(Object... values) {
String list = "";
for (int i=0; i<values.length; i++) {
if (i >= 1)
list += ", ";
if (i == values.length -1)
list += " or ";
list += "\"" + values[i] + "\"";
}
return list;
}
protected String readParameter(String name) throws GuacamoleException {
String value = GuacamoleProperties.getProperty(name);
return value;
}
protected String readParameter(String name, String defaultValue, String... allowedValues) throws GuacamoleException {
String value = GuacamoleProperties.getProperty(name);
// Use default if not specified
if (value == null) {
if (defaultValue == null)
throw new GuacamoleException("Parameter \"" + name + "\" is required.");
return defaultValue;
}
// If not restricted to certain values, just return whatever is given.
if (allowedValues.length == 0)
return value;
// If restricted, only return value within given list
for (String allowedValue : allowedValues)
if (value.equals(allowedValue))
return value;
throw new GuacamoleException("Parameter \"" + name + "\" must be " + humanReadableList((Object) allowedValues));
}
protected boolean readBooleanParameter(String name, Boolean defaultValue) throws GuacamoleException {
String value = GuacamoleProperties.getProperty(name);
// Use default if not specified
if (value == null) {
if (defaultValue == null)
throw new GuacamoleException("Parameter \"" + name + "\" is required.");
return defaultValue;
}
value = value.trim();
if (value.equals("true"))
return true;
if (value.equals("false"))
return false;
throw new GuacamoleException("Parameter \"" + name + "\" must be \"true\" or \"false\".");
}
protected int readIntParameter(String name, Integer defaultValue, Integer... allowedValues) throws GuacamoleException {
String parmString = GuacamoleProperties.getProperty(name);
// Use default if not specified
if (parmString== null) {
if (defaultValue == null)
throw new GuacamoleException("Parameter \"" + name + "\" is required.");
return defaultValue;
}
try {
int value = Integer.parseInt(parmString);
// If not restricted to certain values, just return whatever is given.
if (allowedValues.length == 0)
return value;
// If restricted, only return value within given list
for (int allowedValue : allowedValues)
if (value == allowedValue)
return value;
throw new GuacamoleException("Parameter \"" + name + "\" must be " + humanReadableList((Object) allowedValues));
}
catch (NumberFormatException e) {
throw new GuacamoleException("Parameter \"" + name + "\" must be an integer.", e);
}
}
}

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guacamole-common/src/main/java/net/sourceforge/guacamole/net/GuacamoleConfiguration.java Normal file
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package net.sourceforge.guacamole.net;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import net.sourceforge.guacamole.net.authentication.GuacamoleSessionProvider;
import java.lang.reflect.InvocationTargetException;
import javax.servlet.http.HttpSession;
import net.sourceforge.guacamole.GuacamoleException;
public class GuacamoleConfiguration extends Configuration {
private String guacd_hostname;
private int guacd_port;
private GuacamoleSessionProvider sessionProvider;
public GuacamoleConfiguration() throws GuacamoleException {
guacd_hostname = readParameter("guacd-hostname");
guacd_port = readIntParameter("guacd-port", null);
// Get session provider instance
try {
String sessionProviderClassName = readParameter("session-provider");
Object obj = Class.forName(sessionProviderClassName).getConstructor().newInstance();
if (!(obj instanceof GuacamoleSessionProvider))
throw new GuacamoleException("Specified session provider class is not a GuacamoleSessionProvider");
sessionProvider = (GuacamoleSessionProvider) obj;
}
catch (ClassNotFoundException e) {
throw new GuacamoleException("Session provider class not found", e);
}
catch (NoSuchMethodException e) {
throw new GuacamoleException("Default constructor for session provider not present", e);
}
catch (SecurityException e) {
throw new GuacamoleException("Creation of session provider disallowed; check your security settings", e);
}
catch (InstantiationException e) {
throw new GuacamoleException("Unable to instantiate session provider", e);
}
catch (IllegalAccessException e) {
throw new GuacamoleException("Unable to access default constructor of session provider", e);
}
catch (InvocationTargetException e) {
throw new GuacamoleException("Internal error in constructor of session provider", e.getTargetException());
}
}
public int getProxyPort() {
return guacd_port;
}
public String getProxyHostname() {
return guacd_hostname;
}
public GuacamoleSession createSession(HttpSession session) throws GuacamoleException {
return sessionProvider.createSession(session);
}
}

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guacamole-common/src/main/java/net/sourceforge/guacamole/net/GuacamoleProperties.java Normal file
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package net.sourceforge.guacamole.net;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import net.sourceforge.guacamole.GuacamoleException;
public class GuacamoleProperties {
private static final Properties properties;
private static GuacamoleException exception;
static {
properties = new Properties();
try {
InputStream stream = GuacamoleProperties.class.getResourceAsStream("/guacamole.properties");
if (stream == null)
throw new IOException("Resource /guacamole.properties not found.");
properties.load(stream);
}
catch (IOException e) {
exception = new GuacamoleException("Error reading guacamole.properties", e);
}
}
public static String getProperty(String name) throws GuacamoleException {
if (exception != null) throw exception;
return properties.getProperty(name);
}
}

83
guacamole-common/src/main/java/net/sourceforge/guacamole/net/GuacamoleServlet.java Normal file
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package net.sourceforge.guacamole.net;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.io.IOException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import net.sourceforge.guacamole.GuacamoleException;
public abstract class GuacamoleServlet extends HttpServlet {
private GuacamoleConfiguration config;
@Override
public void init() throws ServletException {
try {
this.config = new GuacamoleConfiguration();
}
catch (GuacamoleException e) {
throw new ServletException(e);
}
}
@Override
protected final void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
try {
handleRequest(req, resp);
}
catch (GuacamoleException e) {
throw new ServletException(e);
}
}
@Override
protected final void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
try {
handleRequest(req, resp);
}
catch (GuacamoleException e) {
throw new ServletException(e);
}
}
private final void handleRequest(HttpServletRequest request, HttpServletResponse response) throws GuacamoleException {
HttpSession httpSession = request.getSession(shouldCreateSession());
if (httpSession != null) {
GuacamoleSession session = config.createSession(httpSession);
handleRequest(session, request, response);
}
else
throw new GuacamoleException("No session");
}
protected abstract void handleRequest(GuacamoleSession session, HttpServletRequest request, HttpServletResponse response) throws GuacamoleException;
protected boolean shouldCreateSession() {
return false;
}
}

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guacamole-common/src/main/java/net/sourceforge/guacamole/net/GuacamoleSession.java Normal file
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package net.sourceforge.guacamole.net;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.util.concurrent.locks.ReentrantLock;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpSessionBindingEvent;
import javax.servlet.http.HttpSessionBindingListener;
import net.sourceforge.guacamole.Client;
import net.sourceforge.guacamole.GuacamoleClient;
import net.sourceforge.guacamole.GuacamoleException;
public class GuacamoleSession {
private GuacamoleConfiguration config;
private final HttpSession session;
private SessionClient client;
private ReentrantLock instructionStreamLock;
private String protocol;
private String hostname;
private int port;
private String password;
public class SessionClient extends Client implements HttpSessionBindingListener {
private Client client;
private ReentrantLock authorizedLock;
public SessionClient(Client client) {
this.client = client;
authorizedLock = new ReentrantLock();
authorizedLock.lock();
}
public void authorize() {
authorizedLock.unlock();
}
public void waitForAuthorization() {
if (authorizedLock.isLocked()) {
try {
authorizedLock.lock();
authorizedLock.unlock();
}
catch (Throwable t) {
throw new Error("Internal error waiting for authorization", t);
}
}
}
public void valueBound(HttpSessionBindingEvent event) {
// Do nothing
}
public void valueUnbound(HttpSessionBindingEvent event) {
try {
disconnect();
}
catch (GuacamoleException e) {
// Ignore
}
}
public void write(char[] data, int off, int len) throws GuacamoleException {
client.write(data, off, len);
}
public char[] read() throws GuacamoleException {
return client.read();
}
public void disconnect() throws GuacamoleException {
client.disconnect();
}
}
public GuacamoleSession(HttpSession session) throws GuacamoleException {
if (session == null)
throw new GuacamoleException("User has no session.");
this.session = session;
synchronized (session) {
// Read configuration parameters
config = new GuacamoleConfiguration();
client = (SessionClient) session.getAttribute("CLIENT");
instructionStreamLock = (ReentrantLock) session.getAttribute("INSTRUCTION_STREAM_LOCK");
}
}
public void connect() throws GuacamoleException {
synchronized (session) {
if (client != null)
client.disconnect();
client = new SessionClient(
new GuacamoleClient (
config.getProxyHostname(),
config.getProxyPort()
)
);
session.setAttribute("CLIENT", client);
instructionStreamLock = new ReentrantLock();
session.setAttribute("INSTRUCTION_STREAM_LOCK", instructionStreamLock);
}
}
public boolean isConnected() {
synchronized (session) {
return client != null;
}
}
public GuacamoleConfiguration getConfiguration() {
return config;
}
public SessionClient getClient() {
synchronized (session) {
return client;
}
}
public void invalidate() {
session.invalidate();
}
public void disconnect() throws GuacamoleException {
if (client != null) {
client.disconnect();
session.removeAttribute("CLIENT");
client = null;
}
}
public ReentrantLock getInstructionStreamLock() {
return instructionStreamLock;
}
public void setConnection(String protocol, String hostname, int port) {
this.protocol = protocol;
this.hostname = hostname;
this.port = port;
}
public String getProtocol() {
return protocol;
}
public String getHostname() {
return hostname;
}
public int getPort() {
return port;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getConnectMessage() throws GuacamoleException {
if (getProtocol() == null)
throw new GuacamoleException("Protocol not specified");
if (getHostname() == null)
throw new GuacamoleException("Hostname not specified");
if (getPassword() == null)
return "connect:" + getProtocol() + "," + getHostname() + "," + getPort() + ";";
else
return "connect:" + getProtocol() + "," + getHostname() + "," + getPort() + "," + getPassword() + ";";
}
}

30
guacamole-common/src/main/java/net/sourceforge/guacamole/net/authentication/GuacamoleSessionProvider.java Normal file
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package net.sourceforge.guacamole.net.authentication;
import javax.servlet.http.HttpSession;
import net.sourceforge.guacamole.GuacamoleException;
import net.sourceforge.guacamole.net.GuacamoleSession;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
public interface GuacamoleSessionProvider {
public GuacamoleSession createSession(HttpSession session) throws GuacamoleException;
}

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guacamole-common/src/main/java/net/sourceforge/guacamole/net/authentication/NullGuacamoleSessionProvider.java Normal file
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package net.sourceforge.guacamole.net.authentication;
import javax.servlet.http.HttpSession;
import net.sourceforge.guacamole.GuacamoleException;
import net.sourceforge.guacamole.net.GuacamoleSession;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
public class NullGuacamoleSessionProvider implements GuacamoleSessionProvider {
public GuacamoleSession createSession(HttpSession session) throws GuacamoleException {
throw new GuacamoleException("Null provider will not create sessions");
}
}

318
guacamole-common/src/main/java/net/sourceforge/guacamole/net/authentication/basic/BasicFileAuthenticationProvider.java Normal file
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package net.sourceforge.guacamole.net.authentication.basic;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.io.File;
import java.io.IOException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import net.sourceforge.guacamole.GuacamoleException;
import net.sourceforge.guacamole.net.GuacamoleProperties;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;
public class BasicFileAuthenticationProvider implements BasicLogin.AuthenticationProvider {
private long mappingTime;
private Map<String, AuthInfo> mapping;
private File getUserMappingFile() throws GuacamoleException {
// Get user mapping filename
String filename = GuacamoleProperties.getProperty("basic-user-mapping");
if (filename == null)
return null;
return new File(filename);
}
public synchronized void init() throws GuacamoleException {
// Get user mapping file
File mapFile = getUserMappingFile();
if (mapFile == null)
throw new GuacamoleException("Missing \"basic-user-mapping\" parameter required for basic login.");
// Parse document
try {
BasicUserMappingContentHandler contentHandler = new BasicUserMappingContentHandler();
XMLReader parser = XMLReaderFactory.createXMLReader();
parser.setContentHandler(contentHandler);
parser.parse(mapFile.getAbsolutePath());
mappingTime = mapFile.lastModified();
mapping = contentHandler.getUserMapping();
}
catch (IOException e) {
throw new GuacamoleException("Error reading basic user mapping file.", e);
}
catch (SAXException e) {
throw new GuacamoleException("Error parsing basic user mapping XML.", e);
}
}
@Override
public BasicLogin.AuthorizedConfiguration getAuthorizedConfiguration(String username, String password) throws GuacamoleException {
// Check mapping file mod time
File userMappingFile = getUserMappingFile();
if (userMappingFile.exists() && mappingTime < userMappingFile.lastModified()) {
// If modified recently, gain exclusive access and recheck
synchronized (this) {
if (userMappingFile.exists() && mappingTime < userMappingFile.lastModified())
init(); // If still not up to date, re-init
}
}
AuthInfo info = mapping.get(username);
if (info != null && info.validate(username, password))
return new BasicLogin.AuthorizedConfiguration(
info.getProtocol(),
info.getHostname(),
info.getPort(),
info.getPassword()
);
return null;
}
public static class AuthInfo {
public static enum Encoding {
PLAIN_TEXT,
MD5
}
private String auth_username;
private String auth_password;
private Encoding auth_encoding;
private String protocol;
private String hostname;
private int port;
private String password;
public AuthInfo(String auth_username, String auth_password, Encoding auth_encoding) {
this.auth_username = auth_username;
this.auth_password = auth_password;
this.auth_encoding = auth_encoding;
}
private static final char HEX_CHARS[] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
};
public static String getHexString(byte[] bytes) {
if (bytes == null)
return null;
StringBuilder hex = new StringBuilder(2 * bytes.length);
for (byte b : bytes) {
hex.append(HEX_CHARS[(b & 0xF0) >> 4])
.append(HEX_CHARS[(b & 0x0F) ]);
}
return hex.toString();
}
public boolean validate(String username, String password) {
// If username matches
if (username != null && password != null && username.equals(auth_username)) {
switch (auth_encoding) {
case PLAIN_TEXT:
// Compare plaintext
return password.equals(auth_password);
case MD5:
// Compare hashed password
try {
MessageDigest digest = MessageDigest.getInstance("MD5");
String hashedPassword = getHexString(digest.digest(password.getBytes()));
return hashedPassword.equals(auth_password.toUpperCase());
}
catch (NoSuchAlgorithmException e) {
throw new UnsupportedOperationException("Unexpected lack of MD5 support.", e);
}
}
}
return false;
}
public String getHostname() {
return hostname;
}
public String getPassword() {
return password;
}
public int getPort() {
return port;
}
public String getProtocol() {
return protocol;
}
}
private static class BasicUserMappingContentHandler extends DefaultHandler {
private Map<String, AuthInfo> authMapping = new HashMap<String, AuthInfo>();
public Map<String, AuthInfo> getUserMapping() {
return Collections.unmodifiableMap(authMapping);
}
private AuthInfo current;
private enum AUTH_INFO_STATE {
PROTOCOL,
HOSTNAME,
PORT,
PASSWORD
};
private AUTH_INFO_STATE infoState;
@Override
public void endElement(String uri, String localName, String qName) throws SAXException {
if (localName.equals("authorize")) {
// Finalize mapping for this user
authMapping.put(
current.auth_username,
current
);
}
infoState = null;
}
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
if (localName.equals("authorize")) {
AuthInfo.Encoding encoding;
String encodingString = attributes.getValue("encoding");
if (encodingString == null)
encoding = AuthInfo.Encoding.PLAIN_TEXT;
else if (encodingString.equals("plain"))
encoding = AuthInfo.Encoding.PLAIN_TEXT;
else if (encodingString.equals("md5"))
encoding = AuthInfo.Encoding.MD5;
else
throw new SAXException("Invalid encoding type");
current = new AuthInfo(
attributes.getValue("username"),
attributes.getValue("password"),
encoding
);
infoState = null;
}
else if (localName.equals("protocol"))
infoState = AUTH_INFO_STATE.PROTOCOL;
else if (localName.equals("hostname"))
infoState = AUTH_INFO_STATE.HOSTNAME;
else if (localName.equals("port"))
infoState = AUTH_INFO_STATE.PORT;
else if (localName.equals("password"))
infoState = AUTH_INFO_STATE.PASSWORD;
else
infoState = null;
}
@Override
public void characters(char[] ch, int start, int length) throws SAXException {
String str = new String(ch, start, length);
if (infoState == null)
return;
switch (infoState) {
case PROTOCOL:
current.protocol = str;
break;
case HOSTNAME:
current.hostname = str;
break;
case PORT:
current.port = Integer.parseInt(str);
break;
case PASSWORD:
current.password = str;
break;
}
}
}
}

50
guacamole-common/src/main/java/net/sourceforge/guacamole/net/authentication/basic/BasicGuacamoleSessionProvider.java Normal file
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package net.sourceforge.guacamole.net.authentication.basic;
import javax.servlet.http.HttpSession;
import net.sourceforge.guacamole.GuacamoleException;
import net.sourceforge.guacamole.net.GuacamoleSession;
import net.sourceforge.guacamole.net.authentication.GuacamoleSessionProvider;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
public class BasicGuacamoleSessionProvider implements GuacamoleSessionProvider {
public GuacamoleSession createSession(HttpSession session) throws GuacamoleException {
// Retrieve authorized config data from session
BasicLogin.AuthorizedConfiguration config = (BasicLogin.AuthorizedConfiguration)
session.getAttribute("BASIC-LOGIN-AUTH");
// If no data, not authorized
if (config == null)
throw new GuacamoleException("Unauthorized");
// Configure session from authorized config info
GuacamoleSession guacSession = new GuacamoleSession(session);
guacSession.setConnection(config.getProtocol(), config.getHostname(), config.getPort());
if (config.getPassword() != null)
guacSession.setPassword(config.getPassword());
// Return authorized session
return guacSession;
}
}

161
guacamole-common/src/main/java/net/sourceforge/guacamole/net/authentication/basic/BasicLogin.java Normal file
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package net.sourceforge.guacamole.net.authentication.basic;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import net.sourceforge.guacamole.GuacamoleException;
import net.sourceforge.guacamole.net.Configuration;
public class BasicLogin extends HttpServlet {
private Config config;
@Override
public void init() throws ServletException {
try {
config = new Config();
}
catch (GuacamoleException e) {
throw new ServletException(e);
}
}
private class Config extends Configuration {
private AuthenticationProvider authProvider;
public Config() throws GuacamoleException {
// Get auth provider instance
try {
String authProviderClassName = readParameter("auth-provider");
Object obj = Class.forName(authProviderClassName).getConstructor().newInstance();
if (!(obj instanceof AuthenticationProvider))
throw new GuacamoleException("Specified session provider class is not a GuacamoleSessionProvider");
authProvider = (AuthenticationProvider) obj;
}
catch (ClassNotFoundException e) {
throw new GuacamoleException("Session provider class not found", e);
}
catch (NoSuchMethodException e) {
throw new GuacamoleException("Default constructor for session provider not present", e);
}
catch (SecurityException e) {
throw new GuacamoleException("Creation of session provider disallowed; check your security settings", e);
}
catch (InstantiationException e) {
throw new GuacamoleException("Unable to instantiate session provider", e);
}
catch (IllegalAccessException e) {
throw new GuacamoleException("Unable to access default constructor of session provider", e);
}
catch (InvocationTargetException e) {
throw new GuacamoleException("Internal error in constructor of session provider", e.getTargetException());
}
}
public AuthenticationProvider getAuthenticationProvider() {
return authProvider;
}
}
public static interface AuthenticationProvider {
public AuthorizedConfiguration getAuthorizedConfiguration(String username, String password) throws GuacamoleException;
}
// Added to session when session validated
public static class AuthorizedConfiguration {
private String protocol;
private String hostname;
private int port;
private String password;
public AuthorizedConfiguration(String protocol, String hostname, int port, String password) {
this.protocol = protocol;
this.hostname = hostname;
this.port = port;
this.password = password;
}
public String getHostname() {
return hostname;
}
public String getPassword() {
return password;
}
public int getPort() {
return port;
}
public String getProtocol() {
return protocol;
}
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
// Retrieve username and password from parms
String username = req.getParameter("username");
String password = req.getParameter("password");
// Validate username and password
try {
AuthorizedConfiguration info = config.getAuthenticationProvider().getAuthorizedConfiguration(username, password);
if (info != null) {
// Store authorized configuration
HttpSession session = req.getSession(true);
session.setAttribute(
"BASIC-LOGIN-AUTH",
info
);
// Success
return;
}
// Report "forbidden" on any failure
resp.sendError(HttpServletResponse.SC_FORBIDDEN, "Login invalid");
}
catch (GuacamoleException e) {
throw new ServletException("Error validating credentials", e);
}
}
}

59
guacamole-common/src/main/java/net/sourceforge/guacamole/net/tunnel/Connect.java Normal file
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package net.sourceforge.guacamole.net.tunnel;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import net.sourceforge.guacamole.GuacamoleException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sourceforge.guacamole.net.GuacamoleServlet;
import net.sourceforge.guacamole.net.GuacamoleSession;
public class Connect extends GuacamoleServlet {
@Override
protected boolean shouldCreateSession() {
return true;
}
@Override
protected void handleRequest(GuacamoleSession session, HttpServletRequest request, HttpServletResponse response) throws GuacamoleException {
// Disconnect if already connected
if (session.isConnected())
session.disconnect();
// Obtain new connection
session.connect();
// Send data
try {
char[] connect = session.getConnectMessage().toCharArray();
session.getClient().write(connect, 0, connect.length);
session.getClient().authorize();
}
catch (GuacamoleException e) {
throw new GuacamoleException("Error sending data to server: " + e.getMessage(), e);
}
}
}

59
guacamole-common/src/main/java/net/sourceforge/guacamole/net/tunnel/Inbound.java Normal file
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package net.sourceforge.guacamole.net.tunnel;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import net.sourceforge.guacamole.GuacamoleException;
import java.io.Reader;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sourceforge.guacamole.net.GuacamoleServlet;
import net.sourceforge.guacamole.net.GuacamoleSession;
public class Inbound extends GuacamoleServlet {
@Override
protected void handleRequest(GuacamoleSession session, HttpServletRequest request, HttpServletResponse response) throws GuacamoleException {
session.getClient().waitForAuthorization();
// Send data
try {
Reader input = request.getReader();
char[] buffer = new char[8192];
int length;
while ((length = input.read(buffer, 0, buffer.length)) != -1)
session.getClient().write(buffer, 0, length);
}
catch (IOException e) {
throw new GuacamoleException("I/O Error sending data to server: " + e.getMessage(), e);
}
catch (GuacamoleException e) {
throw new GuacamoleException("Error sending data to server: " + e.getMessage(), e);
}
}
}

99
guacamole-common/src/main/java/net/sourceforge/guacamole/net/tunnel/Outbound.java Normal file
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package net.sourceforge.guacamole.net.tunnel;
/*
* Guacamole - Clientless Remote Desktop
* Copyright (C) 2010 Michael Jumper
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.io.Writer;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.concurrent.locks.ReentrantLock;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sourceforge.guacamole.Client;
import net.sourceforge.guacamole.net.GuacamoleServlet;
import net.sourceforge.guacamole.GuacamoleException;
import net.sourceforge.guacamole.net.GuacamoleSession;
public class Outbound extends GuacamoleServlet {
@Override
protected void handleRequest(GuacamoleSession session, HttpServletRequest request, HttpServletResponse response) throws GuacamoleException {
session.getClient().waitForAuthorization();
ReentrantLock instructionStreamLock = session.getInstructionStreamLock();
instructionStreamLock.lock();
try {
response.setContentType("text/plain");
Writer out = response.getWriter();
try {
// Query new update from server
Client client = session.getClient();
// For all messages, until another stream is ready (we send at least one message)
char[] message;
while ((message = client.read()) != null) {
// Get message output bytes
out.write(message, 0, message.length);
out.flush();
response.flushBuffer();
// No more messages another stream can take over
if (instructionStreamLock.hasQueuedThreads())
break;
}
if (message == null) {
session.disconnect();
throw new GuacamoleException("Disconnected.");
}
}
catch (GuacamoleException e) {
out.write("error:" + e.getMessage() + ";");
out.flush();
response.flushBuffer();
}
// End-of-instructions marker
out.write(';');
out.flush();
response.flushBuffer();
}
catch (UnsupportedEncodingException e) {
throw new GuacamoleException("UTF-8 not supported by Java.", e);
}
catch (IOException e) {
throw new GuacamoleException("I/O error writing to servlet output stream.", e);
}
finally {
instructionStreamLock.unlock();
}
}
}