* add new and generally ugly components to allow web based control of tunnels

* build an i2ptunnel.war

apps/i2ptunnel/java/build.xml

@@ -22,6 +22,12 @@
                 <attribute name="Class-Path" value="i2p.jar mstreaming.jar" />
             </manifest>
         </jar>
+        <ant target="war" />
+    </target>
+    <target name="war"> 
+        <war destfile="build/i2ptunnel.war" webxml="../jsp/web.xml"
+             basedir="../jsp/" excludes="web.xml">
+        </war>
     </target>
     <target name="javadoc">
         <mkdir dir="./build" />

apps/i2ptunnel/java/src/net/i2p/i2ptunnel/TunnelController.java

@@ -0,0 +1,337 @@
+package net.i2p.i2ptunnel;
+
+import java.io.IOException;
+import java.io.File;
+import java.io.FileOutputStream;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Properties;
+
+import net.i2p.I2PAppContext;
+import net.i2p.I2PException;
+import net.i2p.client.I2PClient;
+import net.i2p.client.I2PClientFactory;
+import net.i2p.data.Destination;
+import net.i2p.util.Log;
+
+/**
+ * Coordinate the runtime operation and configuration of a tunnel.  
+ * These objects are bundled together under a TunnelControllerGroup where the
+ * entire group is stored / loaded from a single config file.
+ *
+ */
+public class TunnelController implements Logging {
+    private Log _log;
+    private Properties _config;
+    private I2PTunnel _tunnel;
+    private List _messages;
+    private boolean _running;
+    
+    /**
+     * Create a new controller for a tunnel out of the specific config options.
+     * The config may contain a large number of options - only ones that begin in
+     * the prefix should be used (and, in turn, that prefix should be stripped off
+     * before being interpreted by this controller)
+     * 
+     * @param config original key=value mapping
+     * @param prefix beginning of key values that are relevent to this tunnel
+     */
+    public TunnelController(Properties config, String prefix) {
+        this(config, prefix, false);
+    }
+    /**
+     * 
+     * @param createKey for servers, whether we want to create a brand new destination
+     *                  with private keys at the location specified or not (does not
+     *                  overwrite existing ones)
+     */
+    public TunnelController(Properties config, String prefix, boolean createKey) {
+        _tunnel = new I2PTunnel();
+        _log = I2PAppContext.getGlobalContext().logManager().getLog(TunnelController.class);
+        setConfig(config, prefix);
+        _messages = new ArrayList(4);
+        _running = false;
+        if (createKey)
+            createPrivateKey();
+    }
+    
+    private void createPrivateKey() {
+        I2PClient client = I2PClientFactory.createClient();
+        File keyFile = new File(getPrivKeyFile());
+        if (keyFile.exists()) {
+            log("Not overwriting existing private keys in " + keyFile.getAbsolutePath());
+            return;
+        } else {
+            File parent = keyFile.getParentFile();
+            if ( (parent != null) && (!parent.exists()) )
+                parent.mkdirs();
+        }
+        FileOutputStream fos = null;
+        try {
+            fos = new FileOutputStream(keyFile);
+            Destination dest = client.createDestination(fos);
+            String destStr = dest.toBase64();
+            log("Private key created and saved in " + keyFile.getAbsolutePath());
+            log("New destination: " + destStr);
+        } catch (I2PException ie) {
+            if (_log.shouldLog(Log.ERROR))
+                _log.error("Error creating new destination", ie);
+            log("Error creating new destination: " + ie.getMessage());
+        } catch (IOException ioe) {
+            if (_log.shouldLog(Log.ERROR))
+                _log.error("Error creating writing the destination to " + keyFile.getAbsolutePath(), ioe);
+            log("Error writing the keys to " + keyFile.getAbsolutePath());
+        } finally {
+            if (fos != null) try { fos.close(); } catch (IOException ioe) {}
+        }
+    }
+    
+    /**
+     * Start up the tunnel (if it isn't already running)
+     *
+     */
+    public void startTunnel() {
+        if (_running) {
+            if (_log.shouldLog(Log.INFO))
+                _log.info("Already running");
+            log("Tunnel " + getName() + " is already running");
+            return;
+        }
+        String type = getType(); 
+        if ( (type == null) || (type.length() <= 0) ) {
+            if (_log.shouldLog(Log.WARN))
+                _log.warn("Cannot start the tunnel - no type specified");
+            return;
+        }
+        if ("httpclient".equals(type)) {
+            startHttpClient();
+        } else if ("client".equals(type)) {
+            startClient();
+        } else if ("server".equals(type)) {
+            startServer();
+        } else {
+            if (_log.shouldLog(Log.WARN))
+                _log.error("Cannot start tunnel - unknown type [" + type + "]");
+        }
+    }
+    
+    private void startHttpClient() {
+        setI2CPOptions();
+        setSessionOptions();
+        setListenOn();
+        String listenPort = getListenPort();
+        String proxyList = getProxyList();
+        if (proxyList == null)
+            _tunnel.runHttpClient(new String[] { listenPort }, this);
+        else
+            _tunnel.runHttpClient(new String[] { listenPort, proxyList }, this);
+        _running = true;
+    }
+    
+    private void startClient() {
+        setI2CPOptions();
+        setSessionOptions();
+        setListenOn();
+        String listenPort = getListenPort(); 
+        String dest = getTargetDestination();
+        _tunnel.runClient(new String[] { listenPort, dest }, this);
+        _running = true;
+    }
+
+    private void startServer() {
+        setI2CPOptions();
+        setSessionOptions();
+        String targetHost = getTargetHost(); 
+        String targetPort = getTargetPort(); 
+        String privKeyFile = getPrivKeyFile(); 
+        _tunnel.runServer(new String[] { targetHost, targetPort, privKeyFile }, this);
+        _running = true;
+    }
+    
+    private void setListenOn() {
+        String listenOn = getListenOnInterface();
+        if ( (listenOn != null) && (listenOn.length() > 0) ) {
+            _tunnel.runListenOn(new String[] { listenOn }, this);
+        }
+    }
+    
+    private void setSessionOptions() {
+        List opts = new ArrayList();
+        for (Iterator iter = _config.keySet().iterator(); iter.hasNext(); ) {
+            String key = (String)iter.next();
+            String val = _config.getProperty(key);
+            if (key.startsWith("option.")) {
+                key = key.substring("option.".length());
+                opts.add(key + "=" + val);
+            }
+        }
+        String args[] = new String[opts.size()];
+        for (int i = 0; i < opts.size(); i++)
+            args[i] = (String)opts.get(i);
+        _tunnel.runClientOptions(args, this);
+    }
+    
+    private void setI2CPOptions() {
+        String host = getI2CPHost();
+        if ( (host != null) && (host.length() > 0) ) 
+            _tunnel.host = host;
+        String port = getI2CPPort();
+        if ( (port != null) && (port.length() > 0) ) 
+            _tunnel.port = port;
+    }
+    
+    public void stopTunnel() {
+        _tunnel.runClose(new String[] { "forced", "all" }, this);
+        _running = false;
+    }
+    
+    public void restartTunnel() {
+        stopTunnel();
+        startTunnel();
+    }
+    
+    public void setConfig(Properties config, String prefix) {
+        Properties props = new Properties();
+        for (Iterator iter = config.keySet().iterator(); iter.hasNext(); ) {
+            String key = (String)iter.next();
+            String val = config.getProperty(key);
+            if (key.startsWith(prefix)) {
+                key = key.substring(prefix.length());
+                props.setProperty(key, val);
+                if (_log.shouldLog(Log.DEBUG))
+                    _log.debug("Set prop [" + key + "] to [" + val + "]");
+            }
+        }
+        _config = props;
+    }
+    public Properties getConfig(String prefix) { 
+        Properties rv = new Properties();
+        for (Iterator iter = _config.keySet().iterator(); iter.hasNext(); ) {
+            String key = (String)iter.next();
+            String val = _config.getProperty(key);
+            rv.setProperty(prefix + key, val);
+        }
+        return rv;
+    }
+
+    public String getType() { return _config.getProperty("type"); }
+    public String getName() { return _config.getProperty("name"); }
+    public String getDescription() { return _config.getProperty("description"); }
+    public String getI2CPHost() { return _config.getProperty("i2cpHost"); }
+    public String getI2CPPort() { return _config.getProperty("i2cpPort"); }
+    public String getClientOptions() {
+        StringBuffer opts = new StringBuffer(64);
+        for (Iterator iter = _config.keySet().iterator(); iter.hasNext(); ) {
+            String key = (String)iter.next();
+            String val = _config.getProperty(key);
+            if (key.startsWith("option.")) {
+                key = key.substring("option.".length());
+                if (opts.length() > 0) opts.append(' ');
+                opts.append(key).append('=').append(val);
+            }
+        }
+        return opts.toString();
+    }
+    public String getListenOnInterface() { return _config.getProperty("interface"); }
+    public String getTargetHost() { return _config.getProperty("targetHost"); }
+    public String getTargetPort() { return _config.getProperty("targetPort"); }
+    public String getPrivKeyFile() { return _config.getProperty("privKeyFile"); }
+    public String getListenPort() { return _config.getProperty("listenPort"); }
+    public String getTargetDestination() { return _config.getProperty("targetDestination"); }
+    public String getProxyList() { return _config.getProperty("proxyList"); }
+    
+    public boolean getIsRunning() { return _running; }
+    
+    public void getSummary(StringBuffer buf) {
+        String type = getType();
+        if ("httpclient".equals(type))
+            getHttpClientSummary(buf);
+        else if ("client".equals(type))
+            getClientSummary(buf);
+        else if ("server".equals(type))
+            getServerSummary(buf);
+        else
+            buf.append("Unknown type ").append(type);
+    }
+    
+    private void getHttpClientSummary(StringBuffer buf) {
+        String description = getDescription();
+        if ( (description != null) && (description.trim().length() > 0) )
+            buf.append("<i>").append(description).append("</i><br />\n");
+        buf.append("HTTP proxy listening on port ").append(getListenPort());
+        String listenOn = getListenOnInterface();
+        if ("0.0.0.0".equals(listenOn)) 
+            buf.append(" (reachable by any machine)");
+        else if ("127.0.0.1".equals(listenOn))
+            buf.append(" (reachable locally only)");
+        else
+            buf.append(" (reachable at the ").append(listenOn).append(" interface)");
+        buf.append("<br />\n");
+        String proxies = getProxyList();
+        if ( (proxies == null) || (proxies.trim().length() <= 0) )
+            buf.append("Outproxy: default [squid.i2p]<br />\n");
+        else
+            buf.append("Outproxy: ").append(proxies).append("<br />\n");
+        getOptionSummary(buf);
+    }
+    
+    private void getClientSummary(StringBuffer buf) {
+        String description = getDescription();
+        if ( (description != null) && (description.trim().length() > 0) )
+            buf.append("<i>").append(description).append("</i><br />\n");
+        buf.append("Client tunnel listening on port ").append(getListenPort());
+        buf.append(" pointing at ").append(getTargetDestination());
+        String listenOn = getListenOnInterface();
+        if ("0.0.0.0".equals(listenOn)) 
+            buf.append(" (reachable by any machine)");
+        else if ("127.0.0.1".equals(listenOn))
+            buf.append(" (reachable locally only)");
+        else
+            buf.append(" (reachable at the ").append(listenOn).append(" interface)");
+        buf.append("<br />\n");
+        getOptionSummary(buf);
+    }
+    
+    private void getServerSummary(StringBuffer buf) {
+        String description = getDescription();
+        if ( (description != null) && (description.trim().length() > 0) )
+            buf.append("<i>").append(description).append("</i><br />\n");
+        buf.append("Server tunnel pointing at port ").append(getTargetPort());
+        buf.append(" on ").append(getTargetHost());
+        buf.append("<br />\n");
+        buf.append("Private destination loaded from ").append(getPrivKeyFile()).append("<br />\n");
+        getOptionSummary(buf);
+    }
+    
+    private void getOptionSummary(StringBuffer buf) {
+        String opts = getClientOptions();
+        if ( (opts != null) && (opts.length() > 0) )
+            buf.append("Network options: ").append(opts).append("<br />\n");
+    }
+    
+    public void log(String s) {
+        synchronized (this) {
+            _messages.add(s);
+            while (_messages.size() > 10)
+                _messages.remove(0);
+        }
+        if (_log.shouldLog(Log.INFO))
+            _log.info(s);
+    }
+    
+    /**
+     * Pull off any messages that the I2PTunnel has produced 
+     *
+     * @return list of messages pulled off (each is a String, earliest first)
+     */
+    public List clearMessages() { 
+        List rv = null;
+        synchronized (this) {
+            rv = new ArrayList(_messages);
+            _messages.clear();
+        }
+        return rv;
+    }
+}

apps/i2ptunnel/java/src/net/i2p/i2ptunnel/TunnelControllerGroup.java

@@ -0,0 +1,249 @@
+package net.i2p.i2ptunnel;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.TreeMap;
+
+import net.i2p.I2PAppContext;
+import net.i2p.util.Log;
+
+/**
+ * Coordinate a set of tunnels within the JVM, loading and storing their config
+ * to disk, and building new ones as requested.
+ *
+ */
+public class TunnelControllerGroup {
+    private Log _log;
+    private List _controllers;
+    private static TunnelControllerGroup _instance = new TunnelControllerGroup();
+    public static TunnelControllerGroup getInstance() { return _instance; }
+    
+    private TunnelControllerGroup() { 
+        _log = I2PAppContext.getGlobalContext().logManager().getLog(TunnelControllerGroup.class);
+        _controllers = new ArrayList();
+    }
+    
+    /**
+     * Load up all of the tunnels configured in the given file (but do not start
+     * them)
+     *
+     */
+    public void loadControllers(String configFile) {
+        Properties cfg = loadConfig(configFile);
+        if (cfg == null) {
+            if (_log.shouldLog(Log.WARN))
+                _log.warn("Unable to load the config from " + configFile);
+            return;
+        }
+        int i = 0; 
+        while (true) {
+            String type = cfg.getProperty("tunnel." + i + ".type");
+            if (type == null) 
+                break;
+            TunnelController controller = new TunnelController(cfg, "tunnel." + i + ".");
+            _controllers.add(controller);
+            i++;
+        }
+        if (_log.shouldLog(Log.INFO))
+            _log.info(i + " controllers loaded from " + configFile);
+    }
+    
+    /**
+     * Stop and remove reference to all known tunnels (but dont delete any config
+     * file or do other silly things)
+     *
+     */
+    public void unloadControllers() {
+        stopAllControllers();
+        _controllers.clear();
+        if (_log.shouldLog(Log.INFO))
+            _log.info("All controllers stopped and unloaded");
+    }
+    
+    /**
+     * Add the given tunnel to the set of known controllers (but dont add it to
+     * a config file or start it or anything)
+     *
+     */
+    public void addController(TunnelController controller) { _controllers.add(controller); }
+    
+    /**
+     * Stop and remove the given tunnel
+     *
+     * @return list of messages from the controller as it is stopped
+     */
+    public List removeController(TunnelController controller) {
+        if (controller == null) return new ArrayList();
+        controller.stopTunnel();
+        List msgs = controller.clearMessages();
+        _controllers.remove(controller);
+        msgs.add("Tunnel " + controller.getName() + " removed");
+        return msgs;
+    }
+    
+    /**
+     * Stop all tunnels
+     *
+     * @return list of messages the tunnels generate when stopped
+     */
+    public List stopAllControllers() {
+        List msgs = new ArrayList();
+        for (int i = 0; i < _controllers.size(); i++) {
+            TunnelController controller = (TunnelController)_controllers.get(i);
+            controller.stopTunnel();
+            msgs.addAll(controller.clearMessages());
+        }
+        
+        if (_log.shouldLog(Log.INFO))
+            _log.info(_controllers.size() + " controllers stopped");
+        return msgs;
+    }
+    
+    /**
+     * Start all tunnels
+     *
+     * @return list of messages the tunnels generate when started
+     */
+    public List startAllControllers() {
+        List msgs = new ArrayList();
+        for (int i = 0; i < _controllers.size(); i++) {
+            TunnelController controller = (TunnelController)_controllers.get(i);
+            controller.startTunnel();
+            msgs.addAll(controller.clearMessages());
+        }
+        
+        if (_log.shouldLog(Log.INFO))
+            _log.info(_controllers.size() + " controllers started");
+        return msgs;
+    }
+    
+    /**
+     * Restart all tunnels
+     *
+     * @return list of messages the tunnels generate when restarted
+     */
+    public List restartAllControllers() {
+        List msgs = new ArrayList();
+        for (int i = 0; i < _controllers.size(); i++) {
+            TunnelController controller = (TunnelController)_controllers.get(i);
+            controller.restartTunnel();
+            msgs.addAll(controller.clearMessages());
+        }
+        if (_log.shouldLog(Log.INFO))
+            _log.info(_controllers.size() + " controllers restarted");
+        return msgs;
+    }
+    
+    /**
+     * Fetch all outstanding messages from any of the known tunnels
+     *
+     * @return list of messages the tunnels have generated
+     */
+    public List clearAllMessages() {
+        List msgs = new ArrayList();
+        for (int i = 0; i < _controllers.size(); i++) {
+            TunnelController controller = (TunnelController)_controllers.get(i);
+            msgs.addAll(controller.clearMessages());
+        }
+        return msgs;
+    }
+    
+    /**
+     * Save the configuration of all known tunnels to the given file
+     *
+     */
+    public void saveConfig(String configFile) {
+        File cfgFile = new File(configFile);
+        File parent = cfgFile.getParentFile();
+        if ( (parent != null) && (!parent.exists()) )
+            parent.mkdirs();
+        
+        
+        TreeMap map = new TreeMap();
+        for (int i = 0; i < _controllers.size(); i++) {
+            TunnelController controller = (TunnelController)_controllers.get(i);
+            Properties cur = controller.getConfig("tunnel." + i + ".");
+            map.putAll(cur);
+        }
+        
+        StringBuffer buf = new StringBuffer(1024);
+        for (Iterator iter = map.keySet().iterator(); iter.hasNext(); ) {
+            String key = (String)iter.next();
+            String val = (String)map.get(key);
+            buf.append(key).append('=').append(val).append('\n');
+        }
+        
+        FileOutputStream fos = null;
+        try {
+            fos = new FileOutputStream(cfgFile);
+            fos.write(buf.toString().getBytes());
+            if (_log.shouldLog(Log.INFO))
+                _log.info("Config written to " + cfgFile.getPath());
+        } catch (IOException ioe) {
+            _log.error("Error writing out the config");
+        } finally {
+            if (fos != null) try { fos.close(); } catch (IOException ioe) {}
+        }
+    }
+    
+    /**
+     * Load up the config data from the file
+     *
+     * @return properties loaded or null if there was an error
+     */
+    private Properties loadConfig(String configFile) {
+        File cfgFile = new File(configFile);
+        if (!cfgFile.exists()) {
+            if (_log.shouldLog(Log.ERROR))
+                _log.error("Unable to load the controllers from " + configFile);
+            return null;
+        }
+        
+        Properties props = new Properties();
+        FileInputStream fis = null;
+        try {
+            fis = new FileInputStream(cfgFile);
+            BufferedReader in = new BufferedReader(new InputStreamReader(fis));
+            String line = null;
+            while ( (line = in.readLine()) != null) {
+                line = line.trim();
+                if (line.length() <= 0) continue;
+                if (line.startsWith("#") || line.startsWith(";"))
+                    continue;
+                int eq = line.indexOf('=');
+                if ( (eq <= 0) || (eq >= line.length() - 1) )
+                    continue;
+                String key = line.substring(0, eq);
+                String val = line.substring(eq+1);
+                props.setProperty(key, val);
+            }
+            
+            if (_log.shouldLog(Log.INFO))
+                _log.info("Props loaded with " + props.size() + " lines");
+            return props;
+        } catch (IOException ioe) {
+            if (_log.shouldLog(Log.ERROR))
+                _log.error("Error reading the controllers from " + configFile, ioe);
+            return null;
+        } finally {
+            if (fis != null) try { fis.close(); } catch (IOException ioe) {}
+        }
+    }
+    
+    /**
+     * Retrieve a list of tunnels known
+     *
+     * @return list of TunnelController objects
+     */
+    public List getControllers() { return _controllers; }
+}

apps/i2ptunnel/java/src/net/i2p/i2ptunnel/WebEditPageFormGenerator.java

@@ -0,0 +1,307 @@
+package net.i2p.i2ptunnel;
+
+import java.io.File;
+
+import java.util.Iterator;
+import java.util.Properties;
+import java.util.Random;
+import java.util.StringTokenizer;
+
+/**
+ * Uuuugly... generate the edit/add forms for the various 
+ * I2PTunnel types (httpclient/client/server)
+ *
+ */
+class WebEditPageFormGenerator {
+    private static final String SELECT_TYPE_FORM =
+      "<form action=\"edit.jsp\"> Type of tunnel: <select name=\"type\">" +
+      "<option value=\"httpclient\">HTTP proxy</option>" +
+      "<option value=\"client\">Client tunnel</option>" +
+      "<option value=\"server\">Server tunnel</option>" +
+      "</select> <input type=\"submit\" value=\"GO\" />" +
+      "</form>\n";
+    
+    /**
+     * Retrieve the form requested
+     *
+     */
+    public static String getForm(WebEditPageHelper helper) {
+        TunnelController controller = helper.getTunnelController();
+
+        if ( (helper.getType() == null) && (controller == null) )
+            return SELECT_TYPE_FORM;
+        
+        String id = helper.getNum();
+        String type = helper.getType();
+        if (controller != null)
+            type = controller.getType();
+        
+        if ("httpclient".equals(type))
+            return getEditHttpClientForm(controller, id);
+        else if ("client".equals(type))
+            return getEditClientForm(controller, id);
+        else if ("server".equals(type))
+            return getEditServerForm(controller, id);
+        else
+            return "WTF, unknown type [" + type + "]";
+    }
+    
+    private static String getEditHttpClientForm(TunnelController controller, String id) {
+        StringBuffer buf = new StringBuffer(1024);
+        addGeneral(buf, controller, id);
+        buf.append("<b>Type:</b> <i>HTTP proxy</i><input type=\"hidden\" name=\"type\" value=\"httpclient\" /><br />\n");
+        
+        addListeningOn(buf, controller, 4444);
+        
+        buf.append("<b>Outproxies:</b> <input type=\"text\" name=\"proxyList\" size=\"20\" ");
+        if ( (controller != null) && (controller.getProxyList() != null) )
+            buf.append("value=\"").append(controller.getProxyList()).append("\" ");
+        else
+            buf.append("value=\"squid.i2p\" ");
+        buf.append("/><br />\n");
+        
+        addOptions(buf, controller);
+        buf.append("<input type=\"submit\" name=\"action\" value=\"Save\">\n");
+        buf.append("<input type=\"submit\" name=\"action\" value=\"Remove\">\n");
+        buf.append(" <i>confirm</i> <input type=\"checkbox\" name=\"removeConfirm\" value=\"true\" />\n");
+        buf.append("</form>\n");
+        return buf.toString();
+    }
+    
+    private static String getEditClientForm(TunnelController controller, String id) {
+        StringBuffer buf = new StringBuffer(1024);
+        addGeneral(buf, controller, id);
+        buf.append("<b>Type:</b> <i>Client tunnel</i><input type=\"hidden\" name=\"type\" value=\"client\" /><br />\n");
+        
+        addListeningOn(buf, controller, 2025 + new Random().nextInt(1000)); // 2025 since nextInt can be negative
+
+        buf.append("<b>Target:</b> <input type=\"text\" size=\"40\" name=\"targetDestination\" ");
+        if ( (controller != null) && (controller.getTargetDestination() != null) )
+            buf.append("value=\"").append(controller.getTargetDestination()).append("\" ");
+        buf.append(" /> (either the hosts.txt name or the full base64 destination)<br />\n");
+        
+        addOptions(buf, controller);
+        buf.append("<input type=\"submit\" name=\"action\" value=\"Save\"><br />\n");
+        buf.append("<input type=\"submit\" name=\"action\" value=\"Remove\">\n");
+        buf.append(" <i>confirm</i> <input type=\"checkbox\" name=\"removeConfirm\" value=\"true\" />\n");
+        buf.append("</form>\n");
+        return buf.toString();
+    }
+    
+    private static String getEditServerForm(TunnelController controller, String id) {
+        StringBuffer buf = new StringBuffer(1024);
+        addGeneral(buf, controller, id);
+        buf.append("<b>Type:</b> <i>Server tunnel</i><input type=\"hidden\" name=\"type\" value=\"server\" /><br />\n");
+        
+        buf.append("<b>Target host:</b> <input type=\"text\" size=\"40\" name=\"targetHost\" ");
+        if ( (controller != null) && (controller.getTargetHost() != null) )
+            buf.append("value=\"").append(controller.getTargetHost()).append("\" ");
+        else
+            buf.append("value=\"localhost\" ");
+        buf.append(" /><br />\n");
+        
+        buf.append("<b>Target port:</b> <input type=\"text\" size=\"4\" name=\"targetPort\" ");
+        if ( (controller != null) && (controller.getTargetPort() != null) )
+            buf.append("value=\"").append(controller.getTargetPort()).append("\" ");
+        else
+            buf.append("value=\"80\" ");
+        buf.append(" /><br />\n");
+        
+        buf.append("<b>Private key file:</b> <input type=\"text\" name=\"privKeyFile\" value=\"");
+        if ( (controller != null) && (controller.getPrivKeyFile() != null) ) {
+            buf.append(controller.getPrivKeyFile()).append("\" /><br />");
+        } else {
+            buf.append("myServer.privKey\" /><br />");
+            buf.append("<input type=\"hidden\" name=\"privKeyGenerate\" value=\"true\" />");
+        }
+        
+        addOptions(buf, controller);
+        buf.append("<input type=\"submit\" name=\"action\" value=\"Save\">\n");
+        buf.append("<input type=\"submit\" name=\"action\" value=\"Remove\">\n");
+        buf.append(" <i>confirm</i> <input type=\"checkbox\" name=\"removeConfirm\" value=\"true\" />\n");
+        buf.append("</form>\n");
+        return buf.toString();
+    }
+    
+    /**
+     * Start off the form and add some common fields (name, num, description)
+     *
+     * @param buf where to shove the form
+     * @param controller tunnel in question, or null if we're creating a new tunnel
+     * @param id index into the current list of tunnelControllerGroup.getControllers() list
+     *           (or null if we are generating an 'add' form)
+     */
+    private static void addGeneral(StringBuffer buf, TunnelController controller, String id) {
+        buf.append("<form action=\"edit.jsp\">");
+        if (id != null)
+            buf.append("<input type=\"hidden\" name=\"num\" value=\"").append(id).append("\" />");
+            
+        buf.append("<b>Name:</b> <input type=\"text\" name=\"name\" size=\"20\" ");
+        if ( (controller != null) && (controller.getName() != null) )
+            buf.append("value=\"").append(controller.getName()).append("\" ");
+        buf.append("/><br />\n");
+        
+        buf.append("<b>Description:</b> <input type=\"text\" name=\"description\" size=\"60\" ");
+        if ( (controller != null) && (controller.getDescription() != null) )
+            buf.append("value=\"").append(controller.getDescription()).append("\" ");
+        buf.append("/><br />\n");
+    }
+
+    /**
+     * Generate the fields asking for what port and interface the tunnel should 
+     * listen on.
+     *
+     * @param buf where to shove the form
+     * @param controller tunnel in question, or null if we're creating a new tunnel
+     * @param defaultPort if we are creating a new tunnel, default the form to the given port
+     */
+    private static void addListeningOn(StringBuffer buf, TunnelController controller, int defaultPort) {
+        buf.append("<b>Listening on port:</b> <input type=\"text\" name=\"port\" size=\"20\" ");
+        if ( (controller != null) && (controller.getListenPort() != null) )
+            buf.append("value=\"").append(controller.getListenPort()).append("\" ");
+        else
+            buf.append("value=\"").append(defaultPort).append("\" ");
+        buf.append("/><br />\n");
+
+        String selectedOn = null;
+        if ( (controller != null) && (controller.getListenOnInterface() != null) )
+            selectedOn = controller.getListenOnInterface();
+        
+        buf.append("<b>Reachable by:</b> ");
+        buf.append("<select name=\"reachableBy\">");
+        buf.append("<option value=\"127.0.0.1\" ");
+        if ( (selectedOn != null) && ("127.0.0.1".equals(selectedOn)) )
+            buf.append("selected=\"true\" ");
+        buf.append(">Locally (127.0.0.1)</option>\n");
+        buf.append("<option value=\"0.0.0.0\" ");
+        if ( (selectedOn != null) && ("0.0.0.0".equals(selectedOn)) )
+            buf.append("selected=\"true\" ");
+        buf.append(">Everyone (0.0.0.0)</option>\n");
+        buf.append("</select> ");
+        buf.append("Other: <input type=\"text\" name=\"reachableByOther\" value=\"");
+        if ( (selectedOn != null) && (!"127.0.0.1".equals(selectedOn)) && (!"0.0.0.0".equals(selectedOn)) )
+            buf.append(selectedOn);
+        buf.append("\"><br />\n");
+    }
+    
+    /**
+     * Add fields for customizing the I2PSession options, including helpers for
+     * tunnel depth and count, as well as I2CP host and port.
+     *
+     * @param buf where to shove the form
+     * @param controller tunnel in question, or null if we're creating a new tunnel
+     */
+    private static void addOptions(StringBuffer buf, TunnelController controller) {
+        int tunnelDepth = 2;
+        int numTunnels = 2;
+        Properties opts = getOptions(controller);
+        if (opts != null) {
+            String depth = opts.getProperty("tunnels.depthInbound");
+            if (depth != null) {
+                try {
+                    tunnelDepth = Integer.parseInt(depth);
+                } catch (NumberFormatException nfe) {
+                    tunnelDepth = 2;
+                }
+            }
+            String num = opts.getProperty("tunnels.numInbound");
+            if (num != null) {
+                try {
+                    numTunnels = Integer.parseInt(num);
+                } catch (NumberFormatException nfe) {
+                    numTunnels = 2;
+                }
+            }
+        }
+        
+        buf.append("<b>Tunnel depth:</b> ");
+        buf.append("<select name=\"tunnelDepth\">");
+        buf.append("<option value=\"0\" ");
+        if (tunnelDepth == 0) buf.append(" selected=\"true\" ");
+        buf.append(">0 hop tunnel (low anonymity, low latency)</option>");
+        buf.append("<option value=\"1\" ");
+        if (tunnelDepth == 1) buf.append(" selected=\"true\" ");
+        buf.append(">1 hop tunnel (medium anonymity, medium latency)</option>");
+        buf.append("<option value=\"2\" ");
+        if (tunnelDepth == 2) buf.append(" selected=\"true\" ");
+        buf.append(">2 hop tunnel (high anonymity, high latency)</option>");
+        if (tunnelDepth > 2) {
+            buf.append("<option value=\"").append(tunnelDepth).append("\" selected=\"true\" >");
+            buf.append(tunnelDepth);
+            buf.append(" hop tunnel (custom)</option>");
+        }
+        buf.append("</select><br />\n");
+        
+        buf.append("<b>Tunnel count:</b> ");
+        buf.append("<select name=\"tunnelCount\">");
+        buf.append("<option value=\"1\" ");
+        if (numTunnels == 1) buf.append(" selected=\"true\" ");
+        buf.append(">1 inbound tunnel (low bandwidth usage, less reliability)</option>");
+        buf.append("<option value=\"2\" ");
+        if (numTunnels == 2) buf.append(" selected=\"true\" ");
+        buf.append(">2 inbound tunnels (standard bandwidth usage, standard reliability)</option>");
+        buf.append("<option value=\"3\" ");
+        if (numTunnels == 3) buf.append(" selected=\"true\" ");
+        buf.append(">3 inbound tunnels (higher bandwidth usage, higher reliability)</option>");
+        
+        if (numTunnels > 3) {
+            buf.append("<option value=\"").append(numTunnels).append("\" selected=\"true\" >");
+            buf.append(numTunnels);
+            buf.append(" inbound tunnels (custom)</option>");
+        }
+        buf.append("</select><br />\n");
+        
+        buf.append("<b>I2CP host:</b> ");
+        buf.append("<input type=\"text\" name=\"clientHost\" size=\"20\" value=\"");
+        if ( (controller != null) && (controller.getI2CPHost() != null) )
+            buf.append(controller.getI2CPHost());
+        else
+            buf.append("localhost");
+        buf.append("\" /><br />\n");
+        buf.append("<b>I2CP port:</b> ");
+        buf.append("<input type=\"text\" name=\"clientPort\" size=\"20\" value=\"");
+        if ( (controller != null) && (controller.getI2CPPort() != null) )
+            buf.append(controller.getI2CPPort());
+        else
+            buf.append("7654");
+        buf.append("\" /><br />\n");
+        
+        buf.append("<b>Other custom options:</b> \n");
+        buf.append("<input type=\"text\" name=\"customOptions\" size=\"60\" value=\"");
+        if (opts != null) {
+            int i = 0;
+            for (Iterator iter = opts.keySet().iterator(); iter.hasNext(); ) {
+                String key = (String)iter.next();
+                String val = opts.getProperty(key);
+                if ("tunnels.depthInbound".equals(key)) continue;
+                if ("tunnels.numInbound".equals(key)) continue;
+                if (i != 0) buf.append(' ');
+                buf.append(key).append('=').append(val);
+                i++;
+            }
+        }
+        buf.append("\" /><br />\n");
+    }
+
+    /**
+     * Retrieve the client options from the tunnel
+     *
+     * @return map of name=val to be used as I2P session options
+     */
+    private static Properties getOptions(TunnelController controller) {
+        if (controller == null) return null;
+        String opts = controller.getClientOptions();
+        StringTokenizer tok = new StringTokenizer(opts);
+        Properties props = new Properties();
+        while (tok.hasMoreTokens()) {
+            String pair = tok.nextToken();
+            int eq = pair.indexOf('=');
+            if ( (eq <= 0) || (eq >= pair.length()) )
+                continue;
+            String key = pair.substring(0, eq);
+            String val = pair.substring(eq+1);
+            props.setProperty(key, val);
+        }
+        return props;
+    }
+}

apps/i2ptunnel/java/src/net/i2p/i2ptunnel/WebEditPageHelper.java

@@ -0,0 +1,348 @@
+package net.i2p.i2ptunnel;
+
+import java.util.List;
+import java.util.Properties;
+import java.util.StringTokenizer;
+
+import net.i2p.I2PAppContext;
+import net.i2p.util.Log;
+
+/**
+ * UUUUuuuuuugly glue code to handle bean interaction from the web, process
+ * that data, and spit out the results (or the form requested).  The basic 
+ * usage is to set any of the fields with data then query the bean via 
+ * getActionResults() which triggers the request processing (taking all the 
+ * provided data, doing what needs to be done) and returns the results of those
+ * activites.  Then a subsequent call to getEditForm() generates the HTML form
+ * to either edit the currently selected tunnel (if specified) or add a new one.
+ * This functionality is delegated to the WebEditPageFormGenerator.
+ *
+ */
+public class WebEditPageHelper {
+    private Log _log;
+    private String _action;
+    private String _type;
+    private String _id;
+    private String _name;
+    private String _description;
+    private String _i2cpHost;
+    private String _i2cpPort;
+    private String _tunnelDepth;
+    private String _tunnelCount;
+    private String _customOptions;
+    private String _proxyList;
+    private String _port;
+    private String _reachableBy;
+    private String _reachableByOther;
+    private String _targetDestination;
+    private String _targetHost;
+    private String _targetPort;
+    private String _privKeyFile;
+    private boolean _privKeyGenerate;
+    private boolean _removeConfirmed;
+    
+    public WebEditPageHelper() {
+        _action = null;
+        _type = null;
+        _id = null;
+        _removeConfirmed = false;
+        _log = I2PAppContext.getGlobalContext().logManager().getLog(WebEditPageHelper.class);
+    }
+    
+    /**
+     * Used for form submit - either "Save" or Remove"
+     */
+    public void setAction(String action) { 
+        _action = (action != null ? action.trim() : null);   
+    }
+    /**
+     * What type of tunnel (httpclient, client, or server).  This is 
+     * required when adding a new tunnel.
+     *
+     */
+    public void setType(String type) { 
+        _type = (type != null ? type.trim() : null);   
+    }
+    /**
+     * Which particular tunnel should be edited (index into the current
+     * TunnelControllerGroup's getControllers() list).  This is required
+     * when editing a tunnel, but not when adding a new one.
+     *
+     */
+    public void setNum(String id) { 
+        _id = (id != null ? id.trim() : null);   
+    }
+    String getType() { return _type; }
+    String getNum() { return _id; }
+    
+    /** Short name of the tunnel */
+    public void setName(String name) { 
+        _name = (name != null ? name.trim() : null);
+    }
+    /** one line description */
+    public void setDescription(String description) { 
+        _description = (description != null ? description.trim() : null);
+    }
+    /** I2CP host the router is on */
+    public void setClientHost(String host) {
+        _i2cpHost = (host != null ? host.trim() : null);
+    }
+    /** I2CP port the router is on */
+    public void setClientPort(String port) {
+        _i2cpPort = (port != null ? port.trim() : null);
+    }
+    /** how many hops to use for inbound tunnels */
+    public void setTunnelDepth(String tunnelDepth) { 
+        _tunnelDepth = (tunnelDepth != null ? tunnelDepth.trim() : null);
+    }
+    /** how many parallel inbound tunnels to use */
+    public void setTunnelCount(String tunnelCount) { 
+        _tunnelCount = (tunnelCount != null ? tunnelCount.trim() : null);
+    }
+    /** what I2P session overrides should be used */
+    public void setCustomOptions(String customOptions) { 
+        _customOptions = (customOptions != null ? customOptions.trim() : null);
+    }
+    /** what HTTP outproxies should be used (httpclient specific) */
+    public void setProxyList(String proxyList) { 
+        _proxyList = (proxyList != null ? proxyList.trim() : null);
+    }
+    /** what port should this client/httpclient listen on */
+    public void setPort(String port) { 
+        _port = (port != null ? port.trim() : null);
+    }
+    /** 
+     * what interface should this client/httpclient listen on (unless 
+     * overridden by the setReachableByOther() field)
+     */
+    public void setReachableBy(String reachableBy) { 
+        _reachableBy = (reachableBy != null ? reachableBy.trim() : null);
+    }
+    /**
+     * If specified, defines the exact IP interface to listen for requests
+     * on (in the case of client/httpclient tunnels)
+     */
+    public void setReachableByOther(String reachableByOther) { 
+        _reachableByOther = (reachableByOther != null ? reachableByOther.trim() : null);
+    }
+    /** What peer does this client tunnel point at */
+    public void setTargetDestination(String dest) { 
+        _targetDestination = (dest != null ? dest.trim() : null);
+    }
+    /** What host does this server tunnel point at */
+    public void setTargetHost(String host) { 
+        _targetHost = (host != null ? host.trim() : null);
+    }
+    /** What port does this server tunnel point at */
+    public void setTargetPort(String port) { 
+        _targetPort = (port != null ? port.trim() : null);
+    }
+    /** What filename is this server tunnel's private keys stored in */
+    public void setPrivKeyFile(String file) { 
+        _privKeyFile = (file != null ? file.trim() : null);
+    }
+    /** 
+     * If called with any value, we want to generate a new destination
+     * for this server tunnel.  This won't cause any existing private keys
+     * to be overwritten, however.
+     */
+    public void setPrivKeyGenerate(String moo) { 
+        _privKeyGenerate = true;
+    }
+    /**
+     * If called with any value (and the form submitted with action=Remove),
+     * we really do want to stop and remove the tunnel.
+     */
+    public void setRemoveConfirm(String moo) {
+        _removeConfirmed = true;
+    }
+    
+    /**
+     * Process the form and display any resulting messages
+     *
+     */
+    public String getActionResults() {
+        try {
+            return processAction();
+        } catch (Throwable t) {
+            _log.log(Log.CRIT, "Internal error processing request", t);
+            return "Internal error - " + t.getMessage();
+        }
+    }
+    
+    /**
+     * Generate an HTML form to edit / create a tunnel according to the 
+     * specified fields
+     */
+    public String getEditForm() {
+        try {
+            return WebEditPageFormGenerator.getForm(this);
+        } catch (Throwable t) {
+            _log.log(Log.CRIT, "Internal error retrieving edit form", t);
+            return "Internal error - " + t.getMessage();
+        }
+    }
+
+    /**
+     * Retrieve the tunnel pointed to by the current id
+     *
+     */
+    TunnelController getTunnelController() {
+        if (_id == null) return null;
+        int id = -1;
+        try {
+            id = Integer.parseInt(_id);
+            List controllers = TunnelControllerGroup.getInstance().getControllers();
+            if ( (id < 0) || (id >= controllers.size()) )
+                return null;
+            else
+                return (TunnelController)controllers.get(id);
+        } catch (NumberFormatException nfe) {
+            if (_log.shouldLog(Log.WARN))
+                _log.warn("Invalid tunnel id [" + _id + "]", nfe);
+            return null;
+        }
+    }
+    
+    private String processAction() {
+        if ( (_action == null) || (_action.trim().length() <= 0) )
+            return "";
+        if ("Save".equals(_action))
+            return save();
+        else if ("Remove".equals(_action))
+            return remove();
+        else
+            return "Action <i>" + _action + "</i> unknown";
+    }
+    
+    private String remove() {
+        if (!_removeConfirmed)
+            return "Please confirm removal";
+        
+        TunnelController cur = getTunnelController();
+        if (cur == null)
+            return "Invalid tunnel number";
+        
+        List msgs = TunnelControllerGroup.getInstance().removeController(cur);
+        msgs.addAll(doSave());
+        return getMessages(msgs);
+    }
+    
+    private String save() {
+        if (_type == null)
+            return "<b>Invalid form submission (no type?)</b>";
+        Properties config = getConfig();
+        if (config == null)
+            return "<b>Invalid params</b>";
+        
+        TunnelController cur = getTunnelController();
+        if (cur == null) {
+            // creating new
+            cur = new TunnelController(config, "", _privKeyGenerate);
+            TunnelControllerGroup.getInstance().addController(cur);
+        } else {
+            cur.setConfig(config, "");
+        }
+        
+        
+        return getMessages(doSave());
+    }
+    private List doSave() { 
+        TunnelControllerGroup.getInstance().saveConfig(WebStatusPageHelper.CONFIG_FILE);
+        return TunnelControllerGroup.getInstance().clearAllMessages();
+    }
+    
+    /**
+     * Based on all provided data, create a set of configuration parameters 
+     * suitable for use in a TunnelController.  This will replace (not add to)
+     * any existing parameters, so this should return a comprehensive mapping.
+     *
+     */
+    private Properties getConfig() {
+        Properties config = new Properties();
+        updateConfigGeneric(config);
+        
+        if ("httpclient".equals(_type)) {
+            if (_port != null)
+                config.setProperty("listenPort", _port);
+            if (_reachableByOther != null)
+                config.setProperty("interface", _reachableByOther);
+            else
+                config.setProperty("interface", _reachableBy);
+            if (_proxyList != null)
+                config.setProperty("proxyList", _proxyList);
+        } else if ("client".equals(_type)) {
+            if (_port != null)
+                config.setProperty("listenPort", _port);
+            if (_reachableByOther != null)
+                config.setProperty("interface", _reachableByOther);
+            else
+                config.setProperty("interface", _reachableBy);
+            if (_targetDestination != null)
+                config.setProperty("targetDestination", _targetDestination);
+        } else if ("server".equals(_type)) {
+            if (_targetHost != null)
+                config.setProperty("targetHost", _targetHost);
+            if (_targetPort != null)
+                config.setProperty("targetPort", _targetPort);
+            if (_privKeyFile != null)
+                config.setProperty("privKeyFile", _privKeyFile);
+        } else {
+            return null;
+        }
+        
+        return config;
+    }
+    
+    private void updateConfigGeneric(Properties config) {
+        config.setProperty("type", _type);
+        if (_name != null)
+            config.setProperty("name", _name);
+        if (_description != null)
+            config.setProperty("description", _description);
+        if (_i2cpHost != null)
+            config.setProperty("i2cpHost", _i2cpHost);
+        if (_i2cpPort != null)
+            config.setProperty("i2cpPort", _i2cpPort);
+        
+        if (_customOptions != null) {
+            StringTokenizer tok = new StringTokenizer(_customOptions);
+            while (tok.hasMoreTokens()) {
+                String pair = tok.nextToken();
+                int eq = pair.indexOf('=');
+                if ( (eq <= 0) || (eq >= pair.length()) )
+                    continue;
+                String key = pair.substring(0, eq);
+                String val = pair.substring(eq+1);
+                if ("tunnels.numInbound".equals(key)) continue;
+                if ("tunnels.depthInbound".equals(key)) continue;
+                config.setProperty("option." + key, val);
+            }
+        }
+
+        if (_tunnelCount != null)
+            config.setProperty("option.tunnels.numInbound", _tunnelCount);
+        if (_tunnelDepth != null)
+            config.setProperty("option.tunnels.depthInbound", _tunnelDepth);
+    }
+
+    /**
+     * Pretty print the messages provided
+     *
+     */
+    private String getMessages(List msgs) {
+        if (msgs == null) return "";
+        int num = msgs.size();
+        switch (num) {
+            case 0: return "";
+            case 1: return (String)msgs.get(0);
+            default:
+                StringBuffer buf = new StringBuffer(512);
+                buf.append("<ul>");
+                for (int i = 0; i < num; i++)
+                    buf.append("<li>").append((String)msgs.get(i)).append("</li>\n");
+                buf.append("</ul>\n");
+                return buf.toString();
+        }
+    }
+}

apps/i2ptunnel/java/src/net/i2p/i2ptunnel/WebStatusPageHelper.java

@@ -0,0 +1,157 @@
+package net.i2p.i2ptunnel;
+
+import java.util.List;
+import net.i2p.I2PAppContext;
+import net.i2p.util.Log;
+
+/**
+ * Ugly hack to let the web interface access the list of known tunnels and
+ * control their operation.  Any data submitted by setting properties are 
+ * acted upon by calling getActionResults() (which returns any messages
+ * generated).  In addition, the getSummaryList() generates the html for
+ * summarizing all of the tunnels known, including both their status and the
+ * links to edit, stop, or start them.
+ *
+ */
+public class WebStatusPageHelper {
+    private Log _log;
+    private String _action;
+    private int _controllerNum;
+    private static boolean _configLoaded = false;
+    
+    static final String CONFIG_FILE = "i2ptunnel.cfg";
+    
+    public WebStatusPageHelper() {
+        _action = null;
+        _controllerNum = -1;
+        _log = I2PAppContext.getGlobalContext().logManager().getLog(WebStatusPageHelper.class);
+        synchronized (WebStatusPageHelper.class) {
+            if (!_configLoaded) {
+                reloadConfig();
+                _configLoaded = true;
+            }
+        }
+    }
+    
+    public void setAction(String action) {
+        _action = action;
+    }
+    public void setNum(String num) {
+        if (num != null) {
+            try {
+                _controllerNum = Integer.parseInt(num);
+            } catch (NumberFormatException nfe) {
+                _controllerNum = -1;
+            }
+        }
+    }
+    
+    public String getActionResults() {
+        try {
+            return processAction();
+        } catch (Throwable t) {
+            _log.log(Log.CRIT, "Internal error processing web status", t);
+            return "Internal error processing request - " + t.getMessage();
+        }
+    }
+    
+    public String getSummaryList() {
+        StringBuffer buf = new StringBuffer(4*1024);
+        buf.append("<ul>");
+        List tunnels = TunnelControllerGroup.getInstance().getControllers();
+        for (int i = 0; i < tunnels.size(); i++) {
+            buf.append("<li>\n");
+            getSummary(buf, i, (TunnelController)tunnels.get(i));
+            buf.append("</li>\n");
+        }
+        buf.append("</ul>");
+        return buf.toString();
+    }
+    
+    private void getSummary(StringBuffer buf, int num, TunnelController controller) {
+        buf.append("<b>").append(controller.getName()).append("</b>: ");
+        if (controller.getIsRunning()) {
+            buf.append("<i>running</i> ");
+            buf.append("<a href=\"index.jsp?num=").append(num).append("&action=stop\">stop</a> ");
+        } else {
+            buf.append("<i>not running</i> ");
+            buf.append("<a href=\"index.jsp?num=").append(num).append("&action=start\">start</a> ");
+        }
+        buf.append("<a href=\"edit.jsp?num=").append(num).append("\">edit</a> ");
+        buf.append("<br />\n");
+        controller.getSummary(buf);
+    }
+    
+    private String processAction() {
+        if ( (_action == null) || (_action.trim().length() <= 0) )
+            return getMessages();
+        if ("Stop all".equals(_action)) 
+            return stopAll();
+        else if ("Start all".equals(_action))
+            return startAll();
+        else if ("Restart all".equals(_action))
+            return restartAll();
+        else if ("Reload config".equals(_action))
+            return reloadConfig();
+        else if ("stop".equals(_action))
+            return stop();
+        else if ("start".equals(_action))
+            return start();
+        else 
+            return "Action <i>" + _action + "</i> unknown";
+    }
+    private String stopAll() {
+        List msgs = TunnelControllerGroup.getInstance().stopAllControllers();
+        return getMessages(msgs);
+    }
+    private String startAll() {
+        List msgs = TunnelControllerGroup.getInstance().startAllControllers();
+        return getMessages(msgs);
+    }
+    private String restartAll() {
+        List msgs = TunnelControllerGroup.getInstance().restartAllControllers();
+        return getMessages(msgs);
+    }
+    private String reloadConfig() {
+        TunnelControllerGroup.getInstance().unloadControllers();
+        TunnelControllerGroup.getInstance().loadControllers(CONFIG_FILE);
+        return "Config reloaded";
+    }
+    private String start() {
+        if (_controllerNum < 0) return "Invalid tunnel";
+        List controllers = TunnelControllerGroup.getInstance().getControllers();
+        if (_controllerNum >= controllers.size()) return "Invalid tunnel";
+        TunnelController controller = (TunnelController)controllers.get(_controllerNum);
+        controller.startTunnel();
+        return getMessages(controller.clearMessages());
+    }
+    
+    private String stop() {
+        if (_controllerNum < 0) return "Invalid tunnel";
+        List controllers = TunnelControllerGroup.getInstance().getControllers();
+        if (_controllerNum >= controllers.size()) return "Invalid tunnel";
+        TunnelController controller = (TunnelController)controllers.get(_controllerNum);
+        controller.stopTunnel();
+        return getMessages(controller.clearMessages());
+    }
+    
+    private String getMessages() {
+        return getMessages(TunnelControllerGroup.getInstance().clearAllMessages());
+    }
+    
+    private String getMessages(List msgs) {
+        if (msgs == null) return "";
+        int num = msgs.size();
+        switch (num) {
+            case 0: return "";
+            case 1: return (String)msgs.get(0);
+            default:
+                StringBuffer buf = new StringBuffer(512);
+                buf.append("<ul>");
+                for (int i = 0; i < num; i++)
+                    buf.append("<li>").append((String)msgs.get(i)).append("</li>\n");
+                buf.append("</ul>\n");
+                return buf.toString();
+        }
+    }
+}

apps/i2ptunnel/jsp/edit.jsp

@@ -0,0 +1,16 @@
+<%@page contentType="text/html" %>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+
+<html><head>
+<title>I2PTunnel edit</title>
+</head><body>
+
+<a href="index.jsp">Back</a>
+
+<jsp:useBean class="net.i2p.i2ptunnel.WebEditPageHelper" id="helper" scope="request" />
+<jsp:setProperty name="helper" property="*" />
+<b><jsp:getProperty name="helper" property="actionResults" /></b>
+
+<jsp:getProperty name="helper" property="editForm" />
+</body>
+</html>

apps/i2ptunnel/jsp/index.jsp

@@ -0,0 +1,31 @@
+<%@page contentType="text/html" %>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+
+<html><head>
+<title>I2PTunnel status</title>
+</head><body>
+
+<jsp:useBean class="net.i2p.i2ptunnel.WebStatusPageHelper" id="helper" scope="request" />
+<jsp:setProperty name="helper" property="*" />
+<b><jsp:getProperty name="helper" property="actionResults" /></b>
+ 
+<jsp:getProperty name="helper" property="summaryList" />
+<hr />
+<form action="index.jsp" method="GET">
+ <input type="submit" name="action" value="Stop all" />
+ <input type="submit" name="action" value="Start all" />
+ <input type="submit" name="action" value="Restart all" />
+ <input type="submit" name="action" value="Reload config" />
+</form>
+
+<form action="edit.jsp">
+<b>Add new:</b> 
+ <select name="type">
+  <option value="httpclient">HTTP proxy</option>
+  <option value="client">Client tunnel</option>
+  <option value="server">Server tunnel</option>
+ </select> <input type="submit" value="GO" />
+</form>
+
+</body>
+</html>

apps/i2ptunnel/jsp/web.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE web-app
+    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
+    "http://java.sun.com/j2ee/dtds/web-app_2.2.dtd">
+
+<web-app>
+    <session-config>
+        <session-timeout>
+            30
+        </session-timeout>
+    </session-config>
+    <welcome-file-list>
+        <welcome-file>
+            index.jsp
+        </welcome-file>
+    </welcome-file-list>
+</web-app>

build.xml

@@ -37,6 +37,7 @@
         <copy file="router/java/build/router.jar" todir="build/" />
         <copy file="apps/ministreaming/java/build/mstreaming.jar" todir="build/" />
         <copy file="apps/i2ptunnel/java/build/i2ptunnel.jar" todir="build/" />
+        <copy file="apps/i2ptunnel/java/build/i2ptunnel.war" todir="build/" />
         <copy file="apps/httptunnel/java/build/httptunnel.jar" todir="build/" />
         <copy file="apps/phttprelay/java/build/phttprelay.war" todir="build/" />
         <copy file="apps/sam/java/build/sam.jar" todir="build/" />