org.argeo.cms/src/org/argeo/cms/internal/kernel/Activator.java

   1 package org.argeo.cms.internal.kernel;
   2
   3 import java.io.IOException;
   4 import java.net.URL;
   5 import java.nio.file.Files;
   6 import java.nio.file.Path;
   7 import java.util.Dictionary;
   8 import java.util.List;
   9 import java.util.Locale;
  10
  11 import javax.security.auth.login.Configuration;
  12
  13 import org.apache.commons.logging.Log;
  14 import org.apache.commons.logging.LogFactory;
  15 import org.argeo.cms.CmsException;
  16 import org.argeo.node.ArgeoLogger;
  17 import org.argeo.node.NodeConstants;
  18 import org.argeo.node.NodeDeployment;
  19 import org.argeo.node.NodeInstance;
  20 import org.argeo.node.NodeState;
  21 import org.argeo.util.LangUtils;
  22 import org.ietf.jgss.GSSCredential;
  23 import org.osgi.framework.BundleActivator;
  24 import org.osgi.framework.BundleContext;
  25 import org.osgi.framework.Constants;
  26 import org.osgi.framework.ServiceReference;
  27 import org.osgi.service.log.LogReaderService;
  28 import org.osgi.service.useradmin.UserAdmin;
  29 import org.osgi.util.tracker.ServiceTracker;
  30
  31 /**
  32  * Activates the kernel. Gives access to kernel information for the rest of the
  33  * bundle (and only it)
  34  */
  35 public class Activator implements BundleActivator {
  36         private final static Log log = LogFactory.getLog(Activator.class);
  37
  38         private static Activator instance;
  39
  40         private BundleContext bc;
  41
  42         private LogReaderService logReaderService;
  43
  44         private NodeLogger logger;
  45         private CmsState nodeState;
  46         private CmsDeployment nodeDeployment;
  47         private CmsInstance nodeInstance;
  48
  49         private ServiceTracker<UserAdmin, NodeUserAdmin> userAdminSt;
  50
  51         @Override
  52         public void start(BundleContext bundleContext) throws Exception {
  53                 Runtime.getRuntime().addShutdownHook(new CmsShutdown());
  54                 instance = this;
  55                 this.bc = bundleContext;
  56                 this.logReaderService = getService(LogReaderService.class);
  57
  58                 try {
  59                         initSecurity();
  60                         initArgeoLogger();
  61                         initNode();
  62
  63                         userAdminSt = new ServiceTracker<>(instance.bc, UserAdmin.class, null);
  64                         userAdminSt.open();
  65                         if (log.isTraceEnabled())
  66                                 log.trace("Kernel bundle started");
  67                 } catch (Throwable e) {
  68                         log.error("## FATAL: CMS activator failed", e);
  69                 }
  70         }
  71
  72         private void initSecurity() {
  73                 if (System.getProperty(KernelConstants.JAAS_CONFIG_PROP) == null) {
  74                         String jaasConfig = KernelConstants.JAAS_CONFIG;
  75                         URL url = getClass().getClassLoader().getResource(jaasConfig);
  76                         // System.setProperty(KernelConstants.JAAS_CONFIG_PROP,
  77                         // url.toExternalForm());
  78                         KernelUtils.setJaasConfiguration(url);
  79                 }
  80                 // explicitly load JAAS configuration
  81                 Configuration.getConfiguration();
  82
  83                 // ConditionalPermissionAdmin permissionAdmin = bc
  84                 // .getService(bc.getServiceReference(ConditionalPermissionAdmin.class));
  85                 // ConditionalPermissionUpdate update =
  86                 // permissionAdmin.newConditionalPermissionUpdate();
  87                 // // Self
  88                 // update.getConditionalPermissionInfos()
  89                 // .add(permissionAdmin.newConditionalPermissionInfo(null,
  90                 // new ConditionInfo[] {
  91                 // new ConditionInfo(BundleLocationCondition.class.getName(), new
  92                 // String[] { "*" }) },
  93                 // new PermissionInfo[] { new
  94                 // PermissionInfo(AllPermission.class.getName(), null, null) },
  95                 // ConditionalPermissionInfo.ALLOW));
  96                 //
  97         }
  98
  99         private void initArgeoLogger() {
 100                 logger = new NodeLogger(logReaderService);
 101                 bc.registerService(ArgeoLogger.class, logger, null);
 102         }
 103
 104         private void initNode() throws IOException {
 105                 // Node state
 106                 Path stateUuidPath = bc.getDataFile("stateUuid").toPath();
 107                 String stateUuid;
 108                 if (Files.exists(stateUuidPath)) {
 109                         stateUuid = Files.readAllLines(stateUuidPath).get(0);
 110                 } else {
 111                         stateUuid = bc.getProperty(Constants.FRAMEWORK_UUID);
 112                         Files.write(stateUuidPath, stateUuid.getBytes());
 113                 }
 114                 nodeState = new CmsState(stateUuid);
 115                 Dictionary<String, Object> regProps = LangUtils.dico(Constants.SERVICE_PID, NodeConstants.NODE_STATE_PID);
 116                 regProps.put(NodeConstants.CN, stateUuid);
 117                 bc.registerService(NodeState.class, nodeState, regProps);
 118
 119                 // Node deployment
 120                 nodeDeployment = new CmsDeployment();
 121                 bc.registerService(NodeDeployment.class, nodeDeployment, null);
 122
 123                 // Node instance
 124                 nodeInstance = new CmsInstance();
 125                 bc.registerService(NodeInstance.class, nodeInstance, null);
 126         }
 127
 128         @Override
 129         public void stop(BundleContext bundleContext) throws Exception {
 130                 try {
 131                         if (nodeInstance != null)
 132                                 nodeInstance.shutdown();
 133                         if (nodeDeployment != null)
 134                                 nodeDeployment.shutdown();
 135                         if (nodeState != null)
 136                                 nodeState.shutdown();
 137
 138                         if (userAdminSt != null)
 139                                 userAdminSt.close();
 140
 141                         instance = null;
 142                         this.bc = null;
 143                         this.logReaderService = null;
 144                         // this.configurationAdmin = null;
 145                 } catch (Exception e) {
 146                         log.error("CMS activator shutdown failed", e);
 147                 }
 148         }
 149
 150         private <T> T getService(Class<T> clazz) {
 151                 ServiceReference<T> sr = bc.getServiceReference(clazz);
 152                 if (sr == null)
 153                         throw new CmsException("No service available for " + clazz);
 154                 return bc.getService(sr);
 155         }
 156
 157         public static NodeState getNodeState() {
 158                 return instance.nodeState;
 159         }
 160
 161         public static GSSCredential getAcceptorCredentials() {
 162                 return getNodeUserAdmin().getAcceptorCredentials();
 163         }
 164
 165         public static boolean isSingleUser() {
 166                 return getNodeUserAdmin().isSingleUser();
 167         }
 168
 169         public static UserAdmin getUserAdmin() {
 170                 return (UserAdmin) getNodeUserAdmin();
 171         }
 172
 173         public static String getHttpProxySslHeader() {
 174                 return KernelUtils.getFrameworkProp(NodeConstants.HTTP_PROXY_SSL_DN);
 175         }
 176
 177         private static NodeUserAdmin getNodeUserAdmin() {
 178                 NodeUserAdmin res;
 179                 try {
 180                         res = instance.userAdminSt.waitForService(60000);
 181                 } catch (InterruptedException e) {
 182                         throw new CmsException("Cannot retrieve Node user admin", e);
 183                 }
 184                 if (res == null)
 185                         throw new CmsException("No Node user admin found");
 186
 187                 return res;
 188                 // ServiceReference<UserAdmin> sr =
 189                 // instance.bc.getServiceReference(UserAdmin.class);
 190                 // NodeUserAdmin userAdmin = (NodeUserAdmin) instance.bc.getService(sr);
 191                 // return userAdmin;
 192
 193         }
 194
 195         // static CmsSecurity getCmsSecurity() {
 196         // return instance.nodeSecurity;
 197         // }
 198
 199         public String[] getLocales() {
 200                 // TODO optimize?
 201                 List<Locale> locales = getNodeState().getLocales();
 202                 String[] res = new String[locales.size()];
 203                 for (int i = 0; i < locales.size(); i++)
 204                         res[i] = locales.get(i).toString();
 205                 return res;
 206         }
 207
 208 }