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Console: Fix stopping webapps at shutdown (ticket #2508)

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RouterAppManager log tweaks
This commit is contained in:
zzz
2019-06-15 16:02:22 +00:00
parent b0bca2f16c
commit 1ddc651b11
7 changed files with 191 additions and 29 deletions
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52
apps/routerconsole/java/src/net/i2p/router/web/PluginStarter.java
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@ -17,6 +17,8 @@ import java.util.Properties;
import java.util.StringTokenizer;
import java.util.concurrent.ConcurrentHashMap;
import org.eclipse.jetty.server.Server;
import net.i2p.CoreVersion;
import net.i2p.I2PAppContext;
import net.i2p.app.ClientApp;
@ -541,12 +543,24 @@ public class PluginStarter implements Runnable {
* @throws Exception just about anything, caller would be wise to catch Throwable
*/
public static boolean stopPlugin(RouterContext ctx, String appName) throws Exception {
Server s = RouterConsoleRunner.getConsoleServer(ctx);
return stopPlugin(ctx, s, appName);
}
/**
* @return true on success
* @throws Exception just about anything, caller would be wise to catch Throwable
* @since 0.9.41
*/
protected static boolean stopPlugin(RouterContext ctx, Server s, String appName) throws Exception {
Log log = ctx.logManager().getLog(PluginStarter.class);
File pluginDir = new File(ctx.getConfigDir(), PLUGIN_DIR + '/' + appName);
if ((!pluginDir.exists()) || (!pluginDir.isDirectory())) {
log.error("Cannot stop nonexistent plugin: " + appName);
return false;
}
if (log.shouldLog(Log.WARN))
log.warn("Stopping plugin: " + appName);
// stop things in clients.config
File clientConfig = new File(pluginDir, "clients.config");
@ -575,13 +589,16 @@ public class PluginStarter implements Runnable {
}
}
*/
if(pluginWars.containsKey(appName)) {
Iterator <String> wars = pluginWars.get(appName).iterator();
while (wars.hasNext()) {
String warName = wars.next();
WebAppStarter.stopWebApp(ctx, warName);
if (s != null) {
Collection<String> wars = pluginWars.get(appName);
if (wars != null) {
for (String warName : wars) {
if (log.shouldInfo())
log.info("Stopping webapp " + warName + " in plugin " + appName);
WebAppStarter.stopWebApp(ctx, s, warName);
}
wars.clear();
}
pluginWars.get(appName).clear();
}
//}
@ -593,8 +610,6 @@ public class PluginStarter implements Runnable {
if (name != null && name.length() > 0)
NavHelper.unregisterApp(name);
if (log.shouldLog(Log.WARN))
log.warn("Stopping plugin: " + appName);
return true;
}
@ -947,6 +962,14 @@ public class PluginStarter implements Runnable {
}
public static boolean isPluginRunning(String pluginName, RouterContext ctx) {
Server s = RouterConsoleRunner.getConsoleServer(ctx);
return isPluginRunning(pluginName, ctx, s);
}
/**
* @since 0.9.41
*/
protected static boolean isPluginRunning(String pluginName, RouterContext ctx, Server s) {
Log log = ctx.logManager().getLog(PluginStarter.class);
boolean isJobRunning = false;
@ -955,13 +978,16 @@ public class PluginStarter implements Runnable {
// TODO have a pending indication too
isJobRunning = true;
}
boolean isWarRunning = false;
if(pluginWars.containsKey(pluginName)) {
Iterator <String> it = pluginWars.get(pluginName).iterator();
while(it.hasNext() && !isWarRunning) {
String warName = it.next();
if(WebAppStarter.isWebAppRunning(ctx, warName)) {
if (s != null) {
Collection<String> wars = pluginWars.get(pluginName);
if (wars != null) {
for (String warName : wars) {
if (WebAppStarter.isWebAppRunning(s, warName)) {
isWarRunning = true;
break;
}
}
}
}

25
apps/routerconsole/java/src/net/i2p/router/web/PluginStopper.java
View File

@ -2,6 +2,9 @@ package net.i2p.router.web;
import java.util.Collections;
import java.util.List;
import org.eclipse.jetty.server.Server;
import net.i2p.router.RouterContext;
import net.i2p.util.Log;
@ -11,15 +14,18 @@ import net.i2p.util.Log;
* @since 0.7.13
* @author zzz
*/
public class PluginStopper extends PluginStarter {
class PluginStopper extends PluginStarter {
public PluginStopper(RouterContext ctx) {
private final Server _server;
public PluginStopper(RouterContext ctx, Server server) {
super(ctx);
_server = server;
}
@Override
public void run() {
stopPlugins(_context);
stopPlugins();
}
/**
@ -27,18 +33,23 @@ public class PluginStopper extends PluginStarter {
*
* this shouldn't throw anything
*/
private static void stopPlugins(RouterContext ctx) {
Log log = ctx.logManager().getLog(PluginStopper.class);
private void stopPlugins() {
Log log = _context.logManager().getLog(PluginStopper.class);
List<String> pl = getPlugins();
Collections.reverse(pl); // reverse the order
for (String app : pl) {
if (isPluginRunning(app, ctx)) {
if (isPluginRunning(app, _context, _server)) {
try {
stopPlugin(ctx, app);
if (log.shouldInfo())
log.info("Stopping plugin: " + app);
stopPlugin(_context, _server, app);
} catch (Throwable e) {
if (log.shouldLog(Log.WARN))
log.warn("Failed to stop plugin: " + app, e);
}
} else {
if (log.shouldInfo())
log.info("Plugin not running: " + app);
}
}
}

20
apps/routerconsole/java/src/net/i2p/router/web/RouterConsoleRunner.java
View File

@ -239,9 +239,10 @@ public class RouterConsoleRunner implements RouterApp {
public synchronized void shutdown(String[] args) {
if (_state == STOPPED)
return;
// this unregisters us with the ClientAppManager
changeState(STOPPING);
if (PluginStarter.pluginsEnabled(_context))
(new I2PAppThread(new PluginStopper(_context), "PluginStopper")).start();
(new I2PAppThread(new PluginStopper(_context, _server), "PluginStopper")).start();
stopAllWebApps();
try {
_server.stop();
@ -293,7 +294,10 @@ public class RouterConsoleRunner implements RouterApp {
}
/**
* To get to Jetty
* To get to Jetty.
* Warning, this will NOT work during shutdown, because
* changeState(STOPPING) will unregister us first.
*
* @return may be null or stopped perhaps
* @since 0.9.38
*/
@ -1137,6 +1141,9 @@ public class RouterConsoleRunner implements RouterApp {
* @since 0.9.30
*/
private void stopAllWebApps() {
net.i2p.util.Log log = _context.logManager().getLog(RouterConsoleRunner.class);
if (log.shouldWarn())
log.warn("Stop all webapps");
Properties props = webAppProperties(_context);
Set<String> keys = props.stringPropertyNames();
for (String name : keys) {
@ -1144,10 +1151,15 @@ public class RouterConsoleRunner implements RouterApp {
String app = name.substring(PREFIX.length(), name.lastIndexOf(ENABLED));
if (ROUTERCONSOLE.equals(app))
continue;
if (WebAppStarter.isWebAppRunning(_context, app)) {
if (_context.portMapper().isRegistered(app)) {
if (log.shouldWarn())
log.warn("Stopping " + app);
try {
WebAppStarter.stopWebApp(_context, app);
WebAppStarter.stopWebApp(_context, _server, app);
} catch (Throwable t) { t.printStackTrace(); }
} else {
if (log.shouldWarn())
log.info("Not Stoppping, isn't running " + app);
}
}
}

75
apps/routerconsole/java/src/net/i2p/router/web/WebAppStarter.java
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@ -151,6 +151,10 @@ public class WebAppStarter {
/**
* Stop it and remove the context.
* Throws just about anything, caller would be wise to catch Throwable
*
* Warning, this will NOT work during shutdown, because
* the console is already unregistered.
*
* @since public since 0.9.33, was package private
*/
public static void stopWebApp(RouterContext ctx, String appName) {
@ -171,10 +175,36 @@ public class WebAppStarter {
} catch (IllegalStateException ise) {}
}
/**
* Stop it and remove the context.
* Throws just about anything, caller would be wise to catch Throwable
* @since 0.9.41
*/
static void stopWebApp(RouterContext ctx, Server s, String appName) {
ContextHandlerCollection server = getConsoleServer(s);
if (server == null)
return;
ContextHandler wac = getWebApp(server, appName);
if (wac == null)
return;
ctx.portMapper().unregister(appName);
try {
// not graceful is default in Jetty 6?
wac.stop();
} catch (Exception ie) {}
try {
server.removeHandler(wac);
server.mapContexts();
} catch (IllegalStateException ise) {}
}
/**
* As of 0.9.34, the appName will be registered with the PortMapper,
* and PortMapper.isRegistered() will be more efficient than this.
*
* Warning, this will NOT work during shutdown, because
* the console is already unregistered.
*
* @since public since 0.9.33; was package private
*/
public static boolean isWebAppRunning(I2PAppContext ctx, String appName) {
@ -184,11 +214,43 @@ public class WebAppStarter {
return wac.isStarted();
}
/** @since Jetty 6 */
/**
* @since 0.9.41
*/
static boolean isWebAppRunning(Server s, String appName) {
ContextHandler wac = getWebApp(s, appName);
if (wac == null)
return false;
return wac.isStarted();
}
/**
* Warning, this will NOT work during shutdown, because
* the console is already unregistered.
*
* @since Jetty 6
*/
static ContextHandler getWebApp(I2PAppContext ctx, String appName) {
ContextHandlerCollection server = getConsoleServer(ctx);
if (server == null)
return null;
return getWebApp(server, appName);
}
/**
* @since 0.9.41
*/
static ContextHandler getWebApp(Server s, String appName) {
ContextHandlerCollection server = getConsoleServer(s);
if (server == null)
return null;
return getWebApp(server, appName);
}
/**
* @since 0.9.41
*/
private static ContextHandler getWebApp(ContextHandlerCollection server, String appName) {
Handler handlers[] = server.getHandlers();
if (handlers == null)
return null;
@ -205,12 +267,23 @@ public class WebAppStarter {
/**
* See comments in ConfigClientsHandler
*
* Warning, this will NOT work during shutdown, because
* the console is already unregistered.
*
* @since public since 0.9.33, was package private
*/
public static ContextHandlerCollection getConsoleServer(I2PAppContext ctx) {
Server s = RouterConsoleRunner.getConsoleServer(ctx);
if (s == null)
return null;
return getConsoleServer(s);
}
/**
* @since 0.9.41
*/
private static ContextHandlerCollection getConsoleServer(Server s) {
Handler h = s.getChildHandlerByClass(ContextHandlerCollection.class);
if (h == null)
return null;

18
history.txt
View File

@ -1,3 +1,21 @@
2019-06-15 zzz
* Console: Fix stopping webapps at shutdown (ticket #2508)
2019-06-09 zzz
* Eepsite Help page: Add links to Arabic, Hungarian, Indonesian.
fix link to Italian
* SusiMail: Add Farsi translation
* Tests: Fix some bashisms, add more files to bashisms check
* UPnP: Set lease duration of 3 hours, always refresh the lease
2019-06-08 zzz
* NetDB:
- Fix Deliv. Status msg sent direct to tunnel
- Faster startup for non-Android
2019-06-07 zzz
* NetDB: Fix NPE on failed decrypt of enc. ls2
2019-06-06 zzz
* CPUID/NBI:
- Add Skylake support (ticket #1869)

2
router/java/src/net/i2p/router/RouterVersion.java
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@ -18,7 +18,7 @@ public class RouterVersion {
/** deprecated */
public final static String ID = "Monotone";
public final static String VERSION = CoreVersion.VERSION;
public final static long BUILD = 10;
public final static long BUILD = 11;
/** for example "-test" */
public final static String EXTRA = "";

26
router/java/src/net/i2p/router/startup/RouterAppManager.java
View File

@ -129,7 +129,10 @@ public class RouterAppManager extends ClientAppManagerImpl {
case STOPPING:
case STOPPED:
_clients.remove(app);
_registered.remove(app.getName(), app);
boolean removed = _registered.remove(app.getName(), app);
if (removed && _log.shouldInfo()) {
_log.info("Client " + app.getDisplayName() + " UNREGISTERED AS " + app.getName());
}
if (message == null)
message = "";
if (_log.shouldLog(Log.INFO))
@ -140,7 +143,10 @@ public class RouterAppManager extends ClientAppManagerImpl {
case CRASHED:
case START_FAILED:
_clients.remove(app);
_registered.remove(app.getName(), app);
boolean removed2 = _registered.remove(app.getName(), app);
if (removed2 && _log.shouldInfo()) {
_log.info("Client " + app.getDisplayName() + " UNREGISTERED AS " + app.getName());
}
if (message == null)
message = "";
_log.log(Log.CRIT, "Client " + app.getDisplayName() + ' ' + state +
@ -172,6 +178,22 @@ public class RouterAppManager extends ClientAppManagerImpl {
return super.register(app);
}
/**
* Unregister with the manager. Name must be the same as that from register().
* Only required for apps used by other apps.
*
* @param app non-null
* @since 0.9.41 overridden for logging only
*/
@Override
public void unregister(ClientApp app) {
if (_log.shouldInfo()) {
if (getRegisteredApp(app.getName()) != null)
_log.info("Client " + app.getDisplayName() + " UNREGISTERED AS " + app.getName());
}
super.unregister(app);
}
/// end ClientAppManager interface
/**