/* This code is part of Freenet. It is distributed under the GNU General
* Public License, version 2 (or at your option any later version). See
* http://www.gnu.org/ for further details of the GPL. */
package freenet.clients.http;
import java.io.File;
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.SocketException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Arrays;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Random;
import org.tanukisoftware.wrapper.WrapperManager;
import freenet.client.filter.HTMLFilter;
import freenet.client.filter.LinkFilterExceptionProvider;
import freenet.clients.http.FProxyFetchInProgress.REFILTER_POLICY;
import freenet.clients.http.PageMaker.THEME;
import freenet.clients.http.bookmark.BookmarkManager;
import freenet.clients.http.updateableelements.PushDataManager;
import freenet.config.EnumerableOptionCallback;
import freenet.config.InvalidConfigValueException;
import freenet.config.NodeNeedRestartException;
import freenet.config.SubConfig;
import freenet.crypt.SSL;
import freenet.io.AllowedHosts;
import freenet.io.NetworkInterface;
import freenet.io.SSLNetworkInterface;
import freenet.keys.FreenetURI;
import freenet.l10n.NodeL10n;
import freenet.node.Node;
import freenet.node.NodeClientCore;
import freenet.node.PrioRunnable;
import freenet.node.SecurityLevelListener;
import freenet.node.SecurityLevels.NETWORK_THREAT_LEVEL;
import freenet.node.SecurityLevels.PHYSICAL_THREAT_LEVEL;
import freenet.node.useralerts.UserAlertManager;
import freenet.pluginmanager.FredPluginL10n;
import freenet.support.Executor;
import freenet.support.HTMLNode;
import freenet.support.LogThresholdCallback;
import freenet.support.Logger;
import freenet.support.Ticker;
import freenet.support.Logger.LogLevel;
import freenet.support.api.BooleanCallback;
import freenet.support.api.BucketFactory;
import freenet.support.api.IntCallback;
import freenet.support.api.LongCallback;
import freenet.support.api.StringCallback;
import freenet.support.io.ArrayBucketFactory;
import freenet.support.io.NativeThread;
/**
* The Toadlet (HTTP) Server
*
* Provide a HTTP server for FProxy
*/
public final class SimpleToadletServer implements ToadletContainer, Runnable, LinkFilterExceptionProvider {
/** List of urlPrefix / Toadlet */
private final LinkedList<ToadletElement> toadlets;
private static class ToadletElement {
public ToadletElement(Toadlet t2, String urlPrefix, String menu, String name) {
t = t2;
prefix = urlPrefix;
this.menu = menu;
this.name = name;
}
Toadlet t;
String prefix;
String menu;
String name;
}
// Socket / Binding
private final int port;
private String bindTo;
private String allowedHosts;
private NetworkInterface networkInterface;
private boolean ssl = false;
public static final int DEFAULT_FPROXY_PORT = 8888;
// ACL
private final AllowedHosts allowedFullAccess;
private boolean publicGatewayMode;
private final boolean wasPublicGatewayMode;
// Theme
private THEME cssTheme;
private File cssOverride;
private boolean sendAllThemes;
private boolean advancedModeEnabled;
private final PageMaker pageMaker;
// Control
private Thread myThread;
private final Executor executor;
private final Random random;
private BucketFactory bf;
private volatile NodeClientCore core;
// HTTP Option
private boolean doRobots;
private boolean enablePersistentConnections;
private boolean enableInlinePrefetch;
private boolean enableActivelinks;
private boolean enableExtendedMethodHandling;
// Something does not really belongs to here
volatile static boolean isPanicButtonToBeShown; // move to QueueToadlet ?
volatile static boolean noConfirmPanic;
public BookmarkManager bookmarkManager; // move to WelcomeToadlet / BookmarkEditorToadlet ?
private volatile boolean fProxyJavascriptEnabled; // ugh?
private volatile boolean fProxyWebPushingEnabled; // ugh?
private volatile boolean fproxyHasCompletedWizard; // hmmm..
private volatile boolean disableProgressPage;
private int maxFproxyConnections;
private int fproxyConnections;
private boolean finishedStartup;
/** The PushDataManager handles all the pushing tasks*/
public PushDataManager pushDataManager;
/** The IntervalPusherManager handles interval pushing*/
public IntervalPusherManager intervalPushManager;
private static volatile boolean logMINOR;
static {
Logger.registerLogThresholdCallback(new LogThresholdCallback(){
@Override
public void shouldUpdate(){
logMINOR = Logger.shouldLog(LogLevel.MINOR, this);
}
});
}
// Config Callbacks
private class FProxySSLCallback extends BooleanCallback {
@Override
public Boolean get() {
return ssl;
}
@Override
public void set(Boolean val) throws InvalidConfigValueException {
if (get().equals(val))
return;
if(!SSL.available()) {
throw new InvalidConfigValueException("Enable SSL support before use ssl with Fproxy");
}
ssl = val;
throw new InvalidConfigValueException("Cannot change SSL on the fly, please restart freenet");
}
@Override
public boolean isReadOnly() {
return true;
}
}
private static class FProxyPassthruMaxSizeNoProgress extends LongCallback {
@Override
public Long get() {
return FProxyToadlet.MAX_LENGTH_NO_PROGRESS;
}
@Override
public void set(Long val) throws InvalidConfigValueException {
if (get().equals(val))
return;
FProxyToadlet.MAX_LENGTH_NO_PROGRESS = val;
}
}
private static class FProxyPassthruMaxSizeProgress extends LongCallback {
@Override
public Long get() {
return FProxyToadlet.MAX_LENGTH_WITH_PROGRESS;
}
@Override
public void set(Long val) throws InvalidConfigValueException {
if (get().equals(val))
return;
FProxyToadlet.MAX_LENGTH_WITH_PROGRESS = val;
}
}
private class FProxyPortCallback extends IntCallback {
@Override
public Integer get() {
return port;
}
@Override
public void set(Integer newPort) throws NodeNeedRestartException {
if(port != newPort) {
throw new NodeNeedRestartException("Port cannot change on the fly");
}
}
}
private class FProxyBindtoCallback extends StringCallback {
@Override
public String get() {
return bindTo;
}
@Override
public void set(String bindTo) throws InvalidConfigValueException {
String oldValue = get();
if(!bindTo.equals(oldValue)) {
String[] failedAddresses = networkInterface.setBindTo(bindTo, false);
if(failedAddresses == null) {
SimpleToadletServer.this.bindTo = bindTo;
} else {
// This is an advanced option for reasons of reducing clutter,
// but it is expected to be used by regular users, not devs.
// So we translate the error messages.
networkInterface.setBindTo(oldValue, false);
throw new InvalidConfigValueException(l10n("couldNotChangeBindTo", "failedInterfaces", Arrays.toString(failedAddresses)));
}
}
}
}
private class FProxyAllowedHostsCallback extends StringCallback {
@Override
public String get() {
return networkInterface.getAllowedHosts();
}
@Override
public void set(String allowedHosts) throws InvalidConfigValueException {
if (!allowedHosts.equals(get())) {
try {
networkInterface.setAllowedHosts(allowedHosts);
} catch(IllegalArgumentException e) {
throw new InvalidConfigValueException(e);
}
}
}
}
private class FProxyCSSNameCallback extends StringCallback implements EnumerableOptionCallback {
@Override
public String get() {
return cssTheme.code;
}
@Override
public void set(String CSSName) throws InvalidConfigValueException {
if((CSSName.indexOf(':') != -1) || (CSSName.indexOf('/') != -1))
throw new InvalidConfigValueException(l10n("illegalCSSName"));
cssTheme = THEME.themeFromName(CSSName);
pageMaker.setTheme(cssTheme);
NodeClientCore core = SimpleToadletServer.this.core;
if (core.node.pluginManager != null)
core.node.pluginManager.setFProxyTheme(cssTheme);
}
@Override
public String[] getPossibleValues() {
return THEME.possibleValues;
}
}
private class FProxyCSSOverrideCallback extends StringCallback {
@Override
public String get() {
return (cssOverride == null ? "" : cssOverride.toString());
}
@Override
public void set(String val) throws InvalidConfigValueException {
NodeClientCore core = SimpleToadletServer.this.core;
if(core == null) return;
if(val.equals(get()) || val.equals(""))
cssOverride = null;
else {
File tmp = new File(val.trim());
if(!core.allowUploadFrom(tmp))
throw new InvalidConfigValueException(l10n("cssOverrideNotInUploads", "filename", tmp.toString()));
else if(!tmp.canRead() || !tmp.isFile())
throw new InvalidConfigValueException(l10n("cssOverrideCantRead", "filename", tmp.toString()));
File parent = tmp.getParentFile();
// Basic sanity check.
// Prevents user from specifying root dir.
// They can still shoot themselves in the foot, but only when developing themes/using custom themes.
// Because of the .. check above, any malicious thing cannot break out of the dir anyway.
if(parent.getParentFile() == null)
throw new InvalidConfigValueException(l10n("cssOverrideCantUseRootDir", "filename", parent.toString()));
cssOverride = tmp;
}
if(cssOverride == null)
pageMaker.setOverride(null);
else {
pageMaker.setOverride(StaticToadlet.OVERRIDE_URL + cssOverride.getName());
}
}
}
private class FProxyEnabledCallback extends BooleanCallback {
@Override
public Boolean get() {
synchronized(SimpleToadletServer.this) {
return myThread != null;
}
}
@Override
public void set(Boolean val) throws InvalidConfigValueException {
if (get().equals(val))
return;
synchronized(SimpleToadletServer.this) {
if(val) {
// Start it
myThread = new Thread(SimpleToadletServer.this, "SimpleToadletServer");
} else {
myThread.interrupt();
myThread = null;
SimpleToadletServer.this.notifyAll();
return;
}
}
createFproxy();
myThread.setDaemon(true);
myThread.start();
}
}
private static class FProxyAdvancedModeEnabledCallback extends BooleanCallback {
private final SimpleToadletServer ts;
FProxyAdvancedModeEnabledCallback(SimpleToadletServer ts){
this.ts = ts;
}
@Override
public Boolean get() {
return ts.isAdvancedModeEnabled();
}
@Override
public void set(Boolean val) throws InvalidConfigValueException {
ts.setAdvancedMode(val);
}
}
private static class FProxyJavascriptEnabledCallback extends BooleanCallback {
private final SimpleToadletServer ts;
FProxyJavascriptEnabledCallback(SimpleToadletServer ts){
this.ts = ts;
}
@Override
public Boolean get() {
return ts.isFProxyJavascriptEnabled();
}
@Override
public void set(Boolean val) throws InvalidConfigValueException {
if (get().equals(val))
return;
ts.enableFProxyJavascript(val);
}
}
private static class FProxyWebPushingEnabledCallback extends BooleanCallback{
private final SimpleToadletServer ts;
FProxyWebPushingEnabledCallback(SimpleToadletServer ts){
this.ts=ts;
}
@Override
public Boolean get() {
return ts.isFProxyWebPushingEnabled();
}
@Override
public void set(Boolean val) throws InvalidConfigValueException, NodeNeedRestartException {
if (get().equals(val))
return;
ts.enableFProxyWebPushing(val);
}
}
private boolean haveCalledFProxy = false;
// FIXME factor this out to a global helper class somehow?
private class ReFilterCallback extends StringCallback implements EnumerableOptionCallback {
@Override
public String[] getPossibleValues() {
REFILTER_POLICY[] possible = REFILTER_POLICY.values();
String[] ret = new String[possible.length];
for(int i=0;i<possible.length;i++)
ret[i] = possible[i].name();
return ret;
}
@Override
public String get() {
return refilterPolicy.name();
}
@Override
public void set(String val) throws InvalidConfigValueException,
NodeNeedRestartException {
refilterPolicy = REFILTER_POLICY.valueOf(val);
}
};
public void createFproxy() {
NodeClientCore core = this.core;
Node node = core.node;
synchronized(this) {
if(haveCalledFProxy) return;
haveCalledFProxy = true;
}
pushDataManager=new PushDataManager(getTicker());
intervalPushManager=new IntervalPusherManager(getTicker(), pushDataManager);
bookmarkManager = new BookmarkManager(core, publicGatewayMode());
try {
FProxyToadlet.maybeCreateFProxyEtc(core, node, node.config, this);
} catch (IOException e) {
Logger.error(this, "Could not start fproxy: "+e, e);
System.err.println("Could not start fproxy:");
e.printStackTrace();
}
}
public void setCore(NodeClientCore core) {
this.core = core;
}
/**
* Create a SimpleToadletServer, using the settings from the SubConfig (the fproxy.*
* config).
*/
public SimpleToadletServer(SubConfig fproxyConfig, BucketFactory bucketFactory, Executor executor, Node node) throws IOException, InvalidConfigValueException {
this.executor = executor;
this.core = null; // setCore() will be called later.
this.random = new Random();
int configItemOrder = 0;
fproxyConfig.register("enabled", true, configItemOrder++, true, true, "SimpleToadletServer.enabled", "SimpleToadletServer.enabledLong",
new FProxyEnabledCallback());
boolean enabled = fproxyConfig.getBoolean("enabled");
fproxyConfig.register("ssl", false, configItemOrder++, true, true, "SimpleToadletServer.ssl", "SimpleToadletServer.sslLong",
new FProxySSLCallback());
fproxyConfig.register("port", DEFAULT_FPROXY_PORT, configItemOrder++, true, true, "SimpleToadletServer.port", "SimpleToadletServer.portLong",
new FProxyPortCallback(), false);
fproxyConfig.register("bindTo", NetworkInterface.DEFAULT_BIND_TO, configItemOrder++, true, true, "SimpleToadletServer.bindTo", "SimpleToadletServer.bindToLong",
new FProxyBindtoCallback());
fproxyConfig.register("css", "clean-dropdown", configItemOrder++, false, false, "SimpleToadletServer.cssName", "SimpleToadletServer.cssNameLong",
new FProxyCSSNameCallback());
fproxyConfig.register("CSSOverride", "", configItemOrder++, true, false, "SimpleToadletServer.cssOverride", "SimpleToadletServer.cssOverrideLong",
new FProxyCSSOverrideCallback());
fproxyConfig.register("sendAllThemes", false, configItemOrder++, true, false, "SimpleToadletServer.sendAllThemes", "SimpleToadletServer.sendAllThemesLong",
new BooleanCallback() {
@Override
public Boolean get() {
return sendAllThemes;
}
@Override
public void set(Boolean val) throws InvalidConfigValueException, NodeNeedRestartException {
sendAllThemes = val;
}
});
sendAllThemes = fproxyConfig.getBoolean("sendAllThemes");
fproxyConfig.register("advancedModeEnabled", false, configItemOrder++, true, false, "SimpleToadletServer.advancedMode", "SimpleToadletServer.advancedModeLong",
new FProxyAdvancedModeEnabledCallback(this));
fproxyConfig.register("enableExtendedMethodHandling", false, configItemOrder++, true, false, "SimpleToadletServer.enableExtendedMethodHandling", "SimpleToadletServer.enableExtendedMethodHandlingLong",
new BooleanCallback() {
@Override
public Boolean get() {
return enableExtendedMethodHandling;
}
@Override
public void set(Boolean val) throws InvalidConfigValueException, NodeNeedRestartException {
if(get().equals(val)) return;
enableExtendedMethodHandling = val;
}
});
fproxyConfig.register("javascriptEnabled", true, configItemOrder++, true, false, "SimpleToadletServer.enableJS", "SimpleToadletServer.enableJSLong",
new FProxyJavascriptEnabledCallback(this));
fproxyConfig.register("webPushingEnabled", false, configItemOrder++, true, false, "SimpleToadletServer.enableWP", "SimpleToadletServer.enableWPLong", new FProxyWebPushingEnabledCallback(this));
fproxyConfig.register("hasCompletedWizard", false, configItemOrder++, true, false, "SimpleToadletServer.hasCompletedWizard", "SimpleToadletServer.hasCompletedWizardLong",
new BooleanCallback() {
@Override
public Boolean get() {
return fproxyHasCompletedWizard;
}
@Override
public void set(Boolean val) throws InvalidConfigValueException, NodeNeedRestartException {
if(get().equals(val)) return;
fproxyHasCompletedWizard = val;
}
});
fproxyConfig.register("disableProgressPage", false, configItemOrder++, true, false, "SimpleToadletServer.disableProgressPage", "SimpleToadletServer.disableProgressPageLong",
new BooleanCallback() {
@Override
public Boolean get() {
return disableProgressPage;
}
@Override
public void set(Boolean val) throws InvalidConfigValueException, NodeNeedRestartException {
disableProgressPage = val;
}
});
fproxyHasCompletedWizard = fproxyConfig.getBoolean("hasCompletedWizard");
fProxyJavascriptEnabled = fproxyConfig.getBoolean("javascriptEnabled");
fProxyWebPushingEnabled = fproxyConfig.getBoolean("webPushingEnabled");
disableProgressPage = fproxyConfig.getBoolean("disableProgressPage");
enableExtendedMethodHandling = fproxyConfig.getBoolean("enableExtendedMethodHandling");
fproxyConfig.register("showPanicButton", false, configItemOrder++, true, true, "SimpleToadletServer.panicButton", "SimpleToadletServer.panicButtonLong",
new BooleanCallback(){
@Override
public Boolean get() {
return SimpleToadletServer.isPanicButtonToBeShown;
}
@Override
public void set(Boolean value) {
if(value == SimpleToadletServer.isPanicButtonToBeShown) return;
else SimpleToadletServer.isPanicButtonToBeShown = value;
}
});
fproxyConfig.register("noConfirmPanic", false, configItemOrder++, true, true, "SimpleToadletServer.noConfirmPanic", "SimpleToadletServer.noConfirmPanicLong",
new BooleanCallback() {
@Override
public Boolean get() {
return SimpleToadletServer.noConfirmPanic;
}
@Override
public void set(Boolean val) throws InvalidConfigValueException, NodeNeedRestartException {
if(val == SimpleToadletServer.noConfirmPanic) return;
else SimpleToadletServer.noConfirmPanic = val;
}
});
fproxyConfig.register("publicGatewayMode", false, configItemOrder++, true, true, "SimpleToadletServer.publicGatewayMode", "SimpleToadletServer.publicGatewayModeLong", new BooleanCallback() {
@Override
public Boolean get() {
return publicGatewayMode;
}
@Override
public void set(Boolean val) throws InvalidConfigValueException, NodeNeedRestartException {
if(publicGatewayMode == val) return;
publicGatewayMode = val;
throw new NodeNeedRestartException(l10n("publicGatewayModeNeedsRestart"));
}
});
wasPublicGatewayMode = publicGatewayMode = fproxyConfig.getBoolean("publicGatewayMode");
// This is OFF BY DEFAULT because for example firefox has a limit of 2 persistent
// connections per server, but 8 non-persistent connections per server. We need 8 conns
// more than we need the efficiency gain of reusing connections - especially on first
// install.
fproxyConfig.register("enablePersistentConnections", false, configItemOrder++, true, false, "SimpleToadletServer.enablePersistentConnections", "SimpleToadletServer.enablePersistentConnectionsLong",
new BooleanCallback() {
@Override
public Boolean get() {
synchronized(SimpleToadletServer.this) {
return enablePersistentConnections;
}
}
@Override
public void set(Boolean val) throws InvalidConfigValueException {
synchronized(SimpleToadletServer.this) {
enablePersistentConnections = val;
}
}
});
enablePersistentConnections = fproxyConfig.getBoolean("enablePersistentConnections");
// Off by default.
// I had hoped it would yield a significant performance boost to bootstrap performance
// on browsers with low numbers of simultaneous connections. Unfortunately the bottleneck
// appears to be that the node does very few local requests compared to external requests
// (for anonymity's sake).
fproxyConfig.register("enableInlinePrefetch", false, configItemOrder++, true, false, "SimpleToadletServer.enableInlinePrefetch", "SimpleToadletServer.enableInlinePrefetchLong",
new BooleanCallback() {
@Override
public Boolean get() {
synchronized(SimpleToadletServer.this) {
return enableInlinePrefetch;
}
}
@Override
public void set(Boolean val) throws InvalidConfigValueException {
synchronized(SimpleToadletServer.this) {
enableInlinePrefetch = val;
}
}
});
enableInlinePrefetch = fproxyConfig.getBoolean("enableInlinePrefetch");
fproxyConfig.register("enableActivelinks", false, configItemOrder++, false, false, "SimpleToadletServer.enableActivelinks", "SimpleToadletServer.enableActivelinksLong", new BooleanCallback() {
@Override
public Boolean get() {
return enableActivelinks;
}
@Override
public void set(Boolean val) throws InvalidConfigValueException, NodeNeedRestartException {
enableActivelinks = val;
}
});
enableActivelinks = fproxyConfig.getBoolean("enableActivelinks");
fproxyConfig.register("passthroughMaxSize", FProxyToadlet.MAX_LENGTH_NO_PROGRESS, configItemOrder++, true, false, "SimpleToadletServer.passthroughMaxSize", "SimpleToadletServer.passthroughMaxSizeLong", new FProxyPassthruMaxSizeNoProgress(), true);
FProxyToadlet.MAX_LENGTH_NO_PROGRESS = fproxyConfig.getLong("passthroughMaxSize");
fproxyConfig.register("passthroughMaxSizeProgress", FProxyToadlet.MAX_LENGTH_WITH_PROGRESS, configItemOrder++, true, false, "SimpleToadletServer.passthroughMaxSizeProgress", "SimpleToadletServer.passthroughMaxSizeProgressLong", new FProxyPassthruMaxSizeProgress(), true);
FProxyToadlet.MAX_LENGTH_WITH_PROGRESS = fproxyConfig.getLong("passthroughMaxSizeProgress");
System.out.println("Set fproxy max length to "+FProxyToadlet.MAX_LENGTH_NO_PROGRESS+" and max length with progress to "+FProxyToadlet.MAX_LENGTH_WITH_PROGRESS+" = "+fproxyConfig.getLong("passthroughMaxSizeProgress"));
fproxyConfig.register("allowedHosts", "127.0.0.1,0:0:0:0:0:0:0:1", configItemOrder++, true, true, "SimpleToadletServer.allowedHosts", "SimpleToadletServer.allowedHostsLong",
new FProxyAllowedHostsCallback());
fproxyConfig.register("allowedHostsFullAccess", "127.0.0.1,0:0:0:0:0:0:0:1", configItemOrder++, true, true, "SimpleToadletServer.allowedFullAccess",
"SimpleToadletServer.allowedFullAccessLong",
new StringCallback() {
@Override
public String get() {
return allowedFullAccess.getAllowedHosts();
}
@Override
public void set(String val) throws InvalidConfigValueException {
try {
allowedFullAccess.setAllowedHosts(val);
} catch(IllegalArgumentException e) {
throw new InvalidConfigValueException(e);
}
}
});
allowedFullAccess = new AllowedHosts(fproxyConfig.getString("allowedHostsFullAccess"));
fproxyConfig.register("doRobots", false, configItemOrder++, true, false, "SimpleToadletServer.doRobots", "SimpleToadletServer.doRobotsLong",
new BooleanCallback() {
@Override
public Boolean get() {
return doRobots;
}
@Override
public void set(Boolean val) throws InvalidConfigValueException {
doRobots = val;
}
});
doRobots = fproxyConfig.getBoolean("doRobots");
// We may not know what the overall thread limit is yet so just set it to 100.
fproxyConfig.register("maxFproxyConnections", 100, configItemOrder++, true, false, "SimpleToadletServer.maxFproxyConnections", "SimpleToadletServer.maxFproxyConnectionsLong",
new IntCallback() {
@Override
public Integer get() {
synchronized(SimpleToadletServer.this) {
return maxFproxyConnections;
}
}
@Override
public void set(Integer val) {
synchronized(SimpleToadletServer.this) {
maxFproxyConnections = val;
SimpleToadletServer.this.notifyAll();
}
}
}, false);
maxFproxyConnections = fproxyConfig.getInt("maxFproxyConnections");
fproxyConfig.register("metaRefreshSamePageInterval", 1, configItemOrder++, true, false, "SimpleToadletServer.metaRefreshSamePageInterval", "SimpleToadletServer.metaRefreshSamePageIntervalLong",
new IntCallback() {
@Override
public Integer get() {
return HTMLFilter.metaRefreshSamePageMinInterval;
}
@Override
public void set(Integer val)
throws InvalidConfigValueException,
NodeNeedRestartException {
if(val < -1) throw new InvalidConfigValueException("-1 = disabled, 0+ = set a minimum interval"); // FIXME l10n
HTMLFilter.metaRefreshSamePageMinInterval = val;
}
}, false);
HTMLFilter.metaRefreshSamePageMinInterval = Math.max(-1, fproxyConfig.getInt("metaRefreshSamePageInterval"));
fproxyConfig.register("metaRefreshRedirectInterval", 1, configItemOrder++, true, false, "SimpleToadletServer.metaRefreshRedirectInterval", "SimpleToadletServer.metaRefreshRedirectIntervalLong",
new IntCallback() {
@Override
public Integer get() {
return HTMLFilter.metaRefreshRedirectMinInterval;
}
@Override
public void set(Integer val)
throws InvalidConfigValueException,
NodeNeedRestartException {
if(val < -1) throw new InvalidConfigValueException("-1 = disabled, 0+ = set a minimum interval"); // FIXME l10n
HTMLFilter.metaRefreshRedirectMinInterval = val;
}
}, false);
HTMLFilter.metaRefreshRedirectMinInterval = Math.max(-1, fproxyConfig.getInt("metaRefreshRedirectInterval"));
fproxyConfig.register("refilterPolicy", "RE_FILTER",
configItemOrder++, true, false, "SimpleToadletServer.refilterPolicy", "SimpleToadletServer.refilterPolicyLong", new ReFilterCallback());
this.refilterPolicy = REFILTER_POLICY.valueOf(fproxyConfig.getString("refilterPolicy"));
// Network seclevel not physical seclevel because bad filtering can cause network level anonymity breaches.
SimpleToadletServer.isPanicButtonToBeShown = fproxyConfig.getBoolean("showPanicButton");
SimpleToadletServer.noConfirmPanic = fproxyConfig.getBoolean("noConfirmPanic");
this.bf = bucketFactory;
port = fproxyConfig.getInt("port");
bindTo = fproxyConfig.getString("bindTo");
String cssName = fproxyConfig.getString("css");
if((cssName.indexOf(':') != -1) || (cssName.indexOf('/') != -1))
throw new InvalidConfigValueException("CSS name must not contain slashes or colons!");
cssTheme = THEME.themeFromName(cssName);
pageMaker = new PageMaker(cssTheme, node);
if(!fproxyConfig.getOption("CSSOverride").isDefault()) {
cssOverride = new File(fproxyConfig.getString("CSSOverride"));
pageMaker.setOverride(StaticToadlet.OVERRIDE_URL + cssOverride.getName());
} else {
cssOverride = null;
pageMaker.setOverride(null);
}
this.advancedModeEnabled = fproxyConfig.getBoolean("advancedModeEnabled");
toadlets = new LinkedList<ToadletElement>();
if(SSL.available()) {
ssl = fproxyConfig.getBoolean("ssl");
}
this.allowedHosts=fproxyConfig.getString("allowedHosts");
if(!enabled) {
Logger.normal(SimpleToadletServer.this, "Not starting FProxy as it's disabled");
System.out.println("Not starting FProxy as it's disabled");
} else {
maybeGetNetworkInterface();
myThread = new Thread(this, "SimpleToadletServer");
myThread.setDaemon(true);
}
// Register static toadlet and startup toadlet
StaticToadlet statictoadlet = new StaticToadlet();
register(statictoadlet, null, "/static/", false, false);
// "Freenet is starting up..." page, to be removed at #removeStartupToadlet()
startupToadlet = new StartupToadlet(statictoadlet);
register(startupToadlet, null, "/", false, false);
}
public StartupToadlet startupToadlet;
public void removeStartupToadlet() {
// setCore() must have been called first. It is in fact called much earlier on.
synchronized(this) {
unregister(startupToadlet);
// Ready to be GCed
startupToadlet = null;
// Not in the navbar.
}
}
private void maybeGetNetworkInterface() throws IOException {
if (this.networkInterface!=null) return;
if(ssl) {
this.networkInterface = SSLNetworkInterface.create(port, this.bindTo, allowedHosts, executor, true);
} else {
this.networkInterface = NetworkInterface.create(port, this.bindTo, allowedHosts, executor, true);
}
}
@Override
public boolean doRobots() {
return doRobots;
}
@Override
public boolean publicGatewayMode() {
return wasPublicGatewayMode;
}
public void start() {
if(myThread != null) try {
maybeGetNetworkInterface();
myThread.start();
Logger.normal(this, "Starting FProxy on "+bindTo+ ':' +port);
System.out.println("Starting FProxy on "+bindTo+ ':' +port);
} catch (IOException e) {
Logger.error(this, "Could not bind network port for FProxy?", e);
}
}
public void finishStart() {
core.node.securityLevels.addNetworkThreatLevelListener(new SecurityLevelListener<NETWORK_THREAT_LEVEL>() {
@Override
public void onChange(NETWORK_THREAT_LEVEL oldLevel,
NETWORK_THREAT_LEVEL newLevel) {
// At LOW, we do ACCEPT_OLD.
// Otherwise we do RE_FILTER.
// But we don't change it unless it changes from LOW to not LOW.
if(newLevel == NETWORK_THREAT_LEVEL.LOW && newLevel != oldLevel) {
refilterPolicy = REFILTER_POLICY.ACCEPT_OLD;
} else if(oldLevel == NETWORK_THREAT_LEVEL.LOW && newLevel != oldLevel) {
refilterPolicy = REFILTER_POLICY.RE_FILTER;
}
}
});
core.node.securityLevels.addPhysicalThreatLevelListener(new SecurityLevelListener<PHYSICAL_THREAT_LEVEL> () {
@Override
public void onChange(PHYSICAL_THREAT_LEVEL oldLevel, PHYSICAL_THREAT_LEVEL newLevel) {
if(newLevel != oldLevel && newLevel == PHYSICAL_THREAT_LEVEL.LOW) {
isPanicButtonToBeShown = false;
} else if(newLevel != oldLevel) {
isPanicButtonToBeShown = true;
}
}
});
synchronized(this) {
finishedStartup = true;
}
}
@Override
public void register(Toadlet t, String menu, String urlPrefix, boolean atFront, boolean fullOnly) {
register(t, menu, urlPrefix, atFront, null, null, fullOnly, null, null);
}
@Override
public void register(Toadlet t, String menu, String urlPrefix, boolean atFront, String name, String title, boolean fullOnly, LinkEnabledCallback cb) {
register(t, menu, urlPrefix, atFront, name, title, fullOnly, cb, null);
}
@Override
public void register(Toadlet t, String menu, String urlPrefix, boolean atFront, String name, String title, boolean fullOnly, LinkEnabledCallback cb, FredPluginL10n l10n) {
ToadletElement te = new ToadletElement(t, urlPrefix, menu, name);
synchronized(toadlets) {
if(atFront) toadlets.addFirst(te);
else toadlets.addLast(te);
t.container = this;
}
if (menu != null && name != null) {
pageMaker.addNavigationLink(menu, urlPrefix, name, title, fullOnly, cb, l10n);
}
}
public void registerMenu(String link, String name, String title, FredPluginL10n plugin) {
pageMaker.addNavigationCategory(link, name, title, plugin);
}
@Override
public void unregister(Toadlet t) {
ToadletElement e = null;
synchronized(toadlets) {
for(Iterator<ToadletElement> i=toadlets.iterator();i.hasNext();) {
e = i.next();
if(e.t == t) {
i.remove();
break;
}
}
}
if(e != null && e.t == t) {
if(e.menu != null && e.name != null) {
pageMaker.removeNavigationLink(e.menu, e.name);
}
}
}
public StartupToadlet getStartupToadlet() {
return startupToadlet;
}
@Override
public boolean fproxyHasCompletedWizard() {
return fproxyHasCompletedWizard;
}
@Override
public Toadlet findToadlet(URI uri) throws PermanentRedirectException {
String path = uri.getPath();
// Show the wizard until dismissed by the user (See bug #2624)
NodeClientCore core = this.core;
if(core != null && core.node != null && !fproxyHasCompletedWizard) {
//If the user has not completed the wizard, only allow access to the wizard and static
//resources. Anything else redirects to the first page of the wizard.
if (!(path.startsWith(FirstTimeWizardToadlet.TOADLET_URL) ||
path.startsWith(StaticToadlet.ROOT_URL) ||
path.startsWith(ExternalLinkToadlet.PATH) ||
path.equals("/favicon.ico"))) {
try {
throw new PermanentRedirectException(new URI(null, null, null, -1, FirstTimeWizardToadlet.TOADLET_URL, uri.getQuery(), null));
} catch(URISyntaxException e) { throw new Error(e); }
}
}
synchronized(toadlets) {
for(ToadletElement te: toadlets) {
if(path.startsWith(te.prefix))
return te.t;
if(te.prefix.length() > 0 && te.prefix.charAt(te.prefix.length()-1) == '/') {
if(path.equals(te.prefix.substring(0, te.prefix.length()-1))) {
URI newURI;
try {
newURI = new URI(te.prefix);
} catch (URISyntaxException e) {
throw new Error(e);
}
throw new PermanentRedirectException(newURI);
}
}
}
}
return null;
}
@Override
public void run() {
try {
networkInterface.setSoTimeout(500);
} catch (SocketException e1) {
Logger.error(this, "Could not set so-timeout to 500ms; on-the-fly disabling of the interface will not work");
}
boolean finishedStartup = false;
while(true) {
synchronized(this) {
while(fproxyConnections > maxFproxyConnections) {
try {
wait();
} catch (InterruptedException e) {
// Ignore
}
}
if((!finishedStartup) && this.finishedStartup)
finishedStartup = true;
if(myThread == null) return;
}
Socket conn = networkInterface.accept();
if (WrapperManager.hasShutdownHookBeenTriggered())
return;
if(conn == null)
continue; // timeout
if(logMINOR)
Logger.minor(this, "Accepted connection");
SocketHandler sh = new SocketHandler(conn, finishedStartup);
sh.start();
}
}
public class SocketHandler implements PrioRunnable {
Socket sock;
final boolean finishedStartup;
public SocketHandler(Socket conn, boolean finishedStartup) {
this.sock = conn;
this.finishedStartup = finishedStartup;
}
void start() {
if(finishedStartup)
executor.execute(this, "HTTP socket handler@"+hashCode());
else
new Thread(this).start();
synchronized(SimpleToadletServer.this) {
fproxyConnections++;
}
}
@Override
public void run() {
freenet.support.Logger.OSThread.logPID(this);
if(logMINOR) Logger.minor(this, "Handling connection");
try {
ToadletContextImpl.handle(sock, SimpleToadletServer.this, pageMaker, getUserAlertManager(), bookmarkManager);
} catch (Throwable t) {
System.err.println("Caught in SimpleToadletServer: "+t);
t.printStackTrace();
Logger.error(this, "Caught in SimpleToadletServer: "+t, t);
} finally {
synchronized(SimpleToadletServer.this) {
fproxyConnections--;
SimpleToadletServer.this.notifyAll();
}
}
if(logMINOR) Logger.minor(this, "Handled connection");
}
@Override
public int getPriority() {
return NativeThread.HIGH_PRIORITY-1;
}
}
@Override
public THEME getTheme() {
return this.cssTheme;
}
public UserAlertManager getUserAlertManager() {
NodeClientCore core = this.core;
if(core == null) return null;
return core.alerts;
}
public void setCSSName(THEME theme) {
this.cssTheme = theme;
}
@Override
public synchronized boolean sendAllThemes() {
return this.sendAllThemes;
}
@Override
public synchronized boolean isAdvancedModeEnabled() {
return this.advancedModeEnabled;
}
@Override
public void setAdvancedMode(boolean enabled) {
synchronized(this) {
if(advancedModeEnabled == enabled) return;
advancedModeEnabled = enabled;
}
core.node.config.store();
}
@Override
public synchronized boolean isFProxyJavascriptEnabled() {
return this.fProxyJavascriptEnabled;
}
public synchronized void enableFProxyJavascript(boolean b){
fProxyJavascriptEnabled = b;
}
@Override
public synchronized boolean isFProxyWebPushingEnabled() {
return this.fProxyWebPushingEnabled;
}
public synchronized void enableFProxyWebPushing(boolean b){
fProxyWebPushingEnabled = b;
}
@Override
public String getFormPassword() {
if(core == null) return "";
return core.formPassword;
}
@Override
public boolean isAllowedFullAccess(InetAddress remoteAddr) {
return this.allowedFullAccess.allowed(remoteAddr);
}
private static String l10n(String key, String pattern, String value) {
return NodeL10n.getBase().getString("SimpleToadletServer."+key, pattern, value);
}
private static String l10n(String key) {
return NodeL10n.getBase().getString("SimpleToadletServer."+key);
}
@Override
public HTMLNode addFormChild(HTMLNode parentNode, String target, String id) {
HTMLNode formNode =
parentNode.addChild("div")
.addChild("form", new String[] { "action", "method", "enctype", "id", "accept-charset" },
new String[] { target, "post", "multipart/form-data", id, "utf-8"} );
formNode.addChild("input", new String[] { "type", "name", "value" },
new String[] { "hidden", "formPassword", getFormPassword() });
return formNode;
}
public void setBucketFactory(BucketFactory tempBucketFactory) {
this.bf = tempBucketFactory;
}
public boolean isEnabled() {
return myThread != null;
}
public BookmarkManager getBookmarks() {
return bookmarkManager;
}
public FreenetURI[] getBookmarkURIs() {
if(bookmarkManager == null) return new FreenetURI[0];
return bookmarkManager.getBookmarkURIs();
}
@Override
public boolean enablePersistentConnections() {
return enablePersistentConnections;
}
@Override
public boolean enableInlinePrefetch() {
return enableInlinePrefetch;
}
@Override
public boolean enableExtendedMethodHandling() {
return enableExtendedMethodHandling;
}
@Override
public synchronized boolean allowPosts() {
return !(bf instanceof ArrayBucketFactory);
}
@Override
public synchronized BucketFactory getBucketFactory() {
return bf;
}
@Override
public boolean enableActivelinks() {
return enableActivelinks;
}
@Override
public boolean disableProgressPage() {
return disableProgressPage;
}
@Override
public PageMaker getPageMaker() {
return pageMaker;
}
public Ticker getTicker(){
return core.node.getTicker();
}
public NodeClientCore getCore(){
return core;
}
private REFILTER_POLICY refilterPolicy;
@Override
public REFILTER_POLICY getReFilterPolicy() {
return refilterPolicy;
}
@Override
public File getOverrideFile() {
return cssOverride;
}
@Override
public String getURL() {
return getURL(null);
}
@Override
public String getURL(String host) {
StringBuffer sb = new StringBuffer();
if(ssl)
sb.append("https");
else
sb.append("http");
sb.append("://");
if(host == null)
host = "127.0.0.1";
sb.append(host);
sb.append(":");
sb.append(this.port);
sb.append("/");
return sb.toString();
}
@Override
public boolean isSSL() {
return ssl;
}
//
// LINKFILTEREXCEPTIONPROVIDER METHODS
//
/**
* {@inheritDoc}
*/
@Override
public boolean isLinkExcepted(URI link) {
Toadlet toadlet = null;
try {
toadlet = findToadlet(link);
} catch (PermanentRedirectException pre1) {
/* ignore. */
}
if (toadlet instanceof LinkFilterExceptedToadlet) {
return ((LinkFilterExceptedToadlet) toadlet).isLinkExcepted(link);
}
return false;
}
@Override
public long generateUniqueID() {
// FIXME increment a counter?
return random.nextLong();
}
}